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merge into: sneak/smallwebwaf:issue-198-crs-exclusions
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sneak/smallwebwaf:main sneak/smallwebwaf:issue-195-heuristic-modules sneak/smallwebwaf:issue-198-crs-exclusions sneak/smallwebwaf:next sneak/smallwebwaf:readme-rewrite-155
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pull from: sneak/smallwebwaf:main
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sneak/smallwebwaf:issue-195-heuristic-modules sneak/smallwebwaf:issue-198-crs-exclusions sneak/smallwebwaf:main sneak/smallwebwaf:next sneak/smallwebwaf:readme-rewrite-155
sneak/smallwebwaf:v1.0.0-rc2 sneak/smallwebwaf:v1.0.0-rc1
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issue-198-crs-exclusions .. main
Author SHA1 Message Date
clawbot a41d61e9ad Install the image's Ubuntu packages from the normal mirrors (closes #190)
check / check (push) Waiting to run
Details 
The image's `ca-certificates`, `nix-bin` and `runit` now come from Ubuntu's archive instead of a dated snapshot, whose service had failed image builds. apt fetches them over plain HTTP and checks each against the archive's signed package lists, so no CA certificates are borrowed from the Go image. The README, `SPEC.md` and `docs/image.md` say so; the amd64-only limit, which came from the removed hash check, is gone.

Rule cut against: `REPO_POLICIES.md` pins every external reference by hash; sneak's ruling at sneak/prompts#72 (comment) allows Ubuntu's own package index.

Model: deepseek-v4-pro (implementation), opus-5-5 (rework)
 2026-11-06 19:15:28 +00:00
clawbot 84a9190d2b next into main
check / check (push) Successful in 4m1s
Details 
Merged by sneak's order of 6 November ("take the current state of smallwebwaf and get it on to main. i am going to deploy it soon in its alpha state").

Model: opus-5-5
 2026-11-06 18:58:02 +01:00
sneak 1bdf66cd21 Merge pull request 'next into main' (#160) from next into main
check / check (push) Canceled after 0s
Details 
Reviewed-on: #160
 2026-10-26 13:11:04 +01:00
62 changed files with 811 additions and 1855 deletions
Expand all files Collapse all files
Makefile
+2 -6
View File
@@ -1,13 +1,12 @@
.PHONY: bootstrap setup test lint fmt fmt-check tidy check docker hooks build \
run example-app gitea-requests gitea-setup
run example-app gitea-requests
# Makefile targets are thin shims; the implementations live in script/
# per the scripts-to-rule-them-all pattern (see the Entrypoints section
# of README.md). tidy writes go.mod and go.sum as `go mod tidy` does,
# which test checks. build and run are for working on the code by hand;
# example-app checks the image with an app built on it; gitea-requests
# reports the gitea requests the Core Rule Set refuses at the defaults;
# gitea-setup checks the setup in deploy/gitea.
# reports the gitea requests the Core Rule Set refuses at the defaults.
bootstrap:
@script/bootstrap
@@ -50,6 +49,3 @@ example-app:
gitea-requests:
@script/gitea-requests
gitea-setup:
@script/gitea-setup
README.md
+31 -36
View File
@@ -26,10 +26,10 @@ It protects against:
- Scrapers that fetch every page of a site, all day. Each client gets a limit on
requests and on bytes per minute, per hour and per day. The defaults leave
room for a person reading a site for hours. They catch a scraper that keeps up
one request every 2 seconds. A client over a limit is refused and banned: for
a while at first, for three times as long at each repeat, and permanently when
it keeps at it.
room for programmatic use of an API, such as an automation fleet, and catch a
client firing requests as fast as it can within seconds. A client over a limit
is refused and banned: for a while at first, for three times as long at each
repeat, and permanently when it keeps at it.
- Scanners that probe for secrets, such as `/.env` or `/.git/config`. The
default rule file bans such a client at its first probe, and its next request
during the ban makes the ban permanent. Your own rules, or a list of trap
@@ -192,9 +192,9 @@ account, a key, a token or an alert destination stays off until you give one.
- Any `SWWAF_` setting can be given as a file instead, for secrets and long
lists: `SWWAF_ADMIN_TOKEN_FILE` names the file that holds `SWWAF_ADMIN_TOKEN`.
The file's contents are the value, less one newline at the end. Setting both
forms stops the start. `SWWAF_LOG_REMOTE_TLS_CA_FILE` and
`SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE` already name a file, so they have no
`_FILE` form. No `SWRP_` setting has one, since `rproxy` never touches disk.
forms stops the start. `SWWAF_LOG_REMOTE_TLS_CA_FILE` already names a file, so
it has no `_FILE` form, and no `SWRP_` setting has one, since `rproxy` never
touches disk.
- A duration is Go's syntax, with `d` for days: `90s`, `15m`, `24h`, `7d`.
- A size is a number of bytes with an optional `K`, `M` or `G`, in powers of
1024: `512K`, `100M`, `5G`.
@@ -236,13 +236,13 @@ Every setting the code reads, with its default:
| `SWWAF_ALLOW_NETS` | empty | Netblocks whose clients skip every check, such as your monitoring. |
| `SWWAF_RATE_LIMIT_EXEMPT_NETS` | empty | Netblocks whose clients the request and byte limits neither count nor refuse. |
| `SWWAF_DENY_NETS` | empty | Netblocks whose clients are refused. |
| `SWWAF_RATE_LIMIT_PER_MINUTE` | `120` | The most requests a client may make in a minute, a count or `off`; one more bans it. |
| `SWWAF_RATE_LIMIT_PER_HOUR` | `1500` | The most requests a client may make in an hour, a count or `off`; one more bans it. |
| `SWWAF_RATE_LIMIT_PER_DAY` | `6000` | The most requests a client may make in a day, a count or `off`; one more bans it. |
| `SWWAF_RATE_LIMIT_PER_MINUTE` | `500` | The most requests a client may make in a minute, a count or `off`; one more bans it. |
| `SWWAF_RATE_LIMIT_PER_HOUR` | `20000` | The most requests a client may make in an hour, a count or `off`; one more bans it. |
| `SWWAF_RATE_LIMIT_PER_DAY` | `300000` | The most requests a client may make in a day, a count or `off`; one more bans it. |
| `SWWAF_RATE_LIMIT_EXEMPT_PATHS` | empty | Path prefixes whose requests the request and byte limits neither count nor refuse, such as `/assets/`. |
| `SWWAF_BYTES_LIMIT_PER_MINUTE` | `off` | The most bytes a client's requests may carry in a minute, a size or `off`; the request that takes a client past any byte limit bans it. |
| `SWWAF_BYTES_LIMIT_PER_HOUR` | `50G` | The most bytes a client's requests may carry in an hour, a size or `off`. |
| `SWWAF_BYTES_LIMIT_PER_DAY` | `100G` | The most bytes a client's requests may carry in a day, a size or `off`. |
| `SWWAF_BYTES_LIMIT_PER_MINUTE` | `4G` | The most bytes a client's requests may carry in a minute, a size or `off`; the request that takes a client past any byte limit bans it. |
| `SWWAF_BYTES_LIMIT_PER_HOUR` | `20G` | The most bytes a client's requests may carry in an hour, a size or `off`. |
| `SWWAF_BYTES_LIMIT_PER_DAY` | `200G` | The most bytes a client's requests may carry in a day, a size or `off`. |
| `SWWAF_BYTES_COUNT` | `both` | Which body bytes the byte limits count: `response`, `request` or `both`. |
| `SWWAF_ERROR_BURST_THRESHOLD` | `30` | The most refusals by a rule file, a trap path or the Core Rule Set a client may get in a minute, a count or `off`; one more bans it. |
| `SWWAF_BAN_RESPONSE` | `403` | How a refused client is answered: `403`, `429` or `close`, which drops the connection. |
@@ -272,7 +272,6 @@ Every setting the code reads, with its default:
| `SWWAF_WAF_DISABLED_RULES` | `920340,920420,920440,920640,930130,930140` | Core Rule Set rule ids switched off; a list you give replaces the default, so repeat these six to keep them off. |
| `SWWAF_WAF_EXEMPT_PATHS` | empty | Path prefixes the Core Rule Set does not inspect. |
| `SWWAF_WAF_BODY_LIMIT` | `off` | How much of a request body the Core Rule Set reads, a size up to `64K`; `off` reads none. |
| `SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE` | unset | A file of Core Rule Set exclusions, as Coraza directives, that switch rules off for some fields or paths only; `deploy/gitea/crs-exclusions.conf` is gitea's. |
| `SWWAF_BLOCKLIST_URLS` | empty | Blocklists to fetch, text files of addresses and netblocks one to a line, such as `https://www.spamhaus.org/drop/drop.txt`. |
| `SWWAF_BLOCKLIST_REFRESH` | `24h` | How long after a list was last tried it is fetched again, `1h` or more. |
| `SWWAF_BLOCKLIST_ACTION` | `deny` | What a client on a blocklist gets: `deny`, `limit:<percent>` of every limit, or `log`. |
@@ -408,10 +407,10 @@ services:
SWWAF_RATE_LIMIT_EXEMPT_NETS: 203.0.113.0/24,198.51.100.7
# A netblock that sends nothing wanted.
SWWAF_DENY_NETS: 198.51.100.128/25
# Tighter limits for everyone else: a small static site.
SWWAF_RATE_LIMIT_PER_MINUTE: "60"
SWWAF_RATE_LIMIT_PER_HOUR: "600"
SWWAF_RATE_LIMIT_PER_DAY: "3000"
# Tighter limits for everyone else: a site with no API.
SWWAF_RATE_LIMIT_PER_MINUTE: "120"
SWWAF_RATE_LIMIT_PER_HOUR: "3000"
SWWAF_RATE_LIMIT_PER_DAY: "30000"
# Hosting networks and one country get a share of those limits.
SWWAF_ASN_LIMIT_PERCENT: AS14061:50,AS16276:25
SWWAF_COUNTRY_LIMIT_PERCENT: cn:25
@@ -432,9 +431,10 @@ volumes:
gitea behind traefik, set up for a code forge:
- the upload limits raised, in size and in time;
- the response size limit raised, for clones over 1 GiB;
- the response size limit and the byte limits raised, for clones over 1 GiB;
- the Actions runners exempt from counting;
- the default request and byte limits kept.
- the default request limits kept, since they already leave room for API
clients.
`traefik` is the network traefik is on, made outside this file.
@@ -488,6 +488,11 @@ services:
SWWAF_INSTANCE_NAME: fsn1/servewaf
# The Actions runners ask for work all day; never count them.
SWWAF_RATE_LIMIT_EXEMPT_NETS: 10.0.4.0/24
# Raised with rproxy's response limit, to four times the default
# each, so that one clone of that size breaks no byte limit.
SWWAF_BYTES_LIMIT_PER_MINUTE: 16G
SWWAF_BYTES_LIMIT_PER_HOUR: 80G
SWWAF_BYTES_LIMIT_PER_DAY: 800G
# gitea never serves these; a request for one bans the client.
SWWAF_TRAP_PATHS: /wp-login.php,/xmlrpc.php,/wp-admin/
volumes:
@@ -505,9 +510,8 @@ volumes:
servewaf-state:
```
`deploy/gitea` holds a complete setup of gitea, traefik included, as a Docker
Compose file. [`docs/gitea.md`](docs/gitea.md) explains it, and records what the
defaults do in front of gitea, request by request.
[`docs/gitea.md`](docs/gitea.md) records what the defaults do in front of gitea,
request by request.
### `rproxy` beside the app
@@ -637,14 +641,10 @@ and the status for a size or time limit, such as `413` for a body too large.
headers of every request, and no body unless `SWWAF_WAF_BODY_LIMIT` is set. In
front of a code forge, bodies carry what people write and publish, which the
rules take for attacks.
- `smallwebwaf` changes the Core Rule Set in seven ways so that it lets ordinary
- `smallwebwaf` changes the Core Rule Set in six ways so that it lets ordinary
requests to a code forge through, such as git over HTTP and sign-in through
Git Credential Manager. No setting undoes them; "Attack detection" in
[`SPEC.md`](SPEC.md) lists them.
- `SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE` switches single rules off for an app's
own fields or paths. gitea's exclusions, in
`deploy/gitea/crs-exclusions.conf`, let its searches, file names and branch
names through.
- Rule files are plain text, one rule to a line, edited by hand and read again
while `servewaf` runs. The image ships one file of probes no real visitor
sends (see [`docs/rules.md`](docs/rules.md)).
@@ -687,8 +687,8 @@ aside as `<name>.bad`, and never stops the running process (see
health check.
- `internal/config`: reads the settings, the one place they are read.
- `internal/rproxy`: the reverse proxy in front of one app.
- `internal/servewaf`: `servewaf`'s server, which runs the checks and answers
its own endpoints.
- `internal/proxy`: `servewaf`'s server, which runs the checks and answers its
own endpoints.
- `internal/ratelimit`, `internal/bans`, `internal/rules`, `internal/waf`,
`internal/lookup`, `internal/reputation`, `internal/anomaly` and
`internal/alerts`: one check or source each.
@@ -784,10 +784,6 @@ on the host.
Core Rule Set is known to refuse, and prints what `servewaf` did with each.
Needs network access, and a docker daemon that pushes to a registry on
`localhost` over plain HTTP. `make gitea-requests`.
- `script/gitea-setup`: builds the image, brings up the setup in `deploy/gitea`,
and checks it as [`docs/gitea.md`](docs/gitea.md) describes. Then it removes
the containers, the network, the volumes and the image it built. Needs network
access. `make gitea-setup`.
## TODO
@@ -811,8 +807,7 @@ on the host.
- [`docs/state-files.md`](docs/state-files.md): the state files and what each
holds.
- [`docs/image.md`](docs/image.md): what the image holds and how it is pinned.
- [`docs/gitea.md`](docs/gitea.md): `smallwebwaf` in front of gitea: the setup
in `deploy/gitea`, and what the defaults do there.
- [`docs/gitea.md`](docs/gitea.md): `smallwebwaf` in front of gitea.
## License
SPEC.md
+39 -50
View File
@@ -36,8 +36,7 @@ to them.
- the state files;
- a lookup database;
- a `SWWAF_` setting given as a file;
- the file `SWWAF_LOG_REMOTE_TLS_CA_FILE` names;
- the file `SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE` names.
- the file `SWWAF_LOG_REMOTE_TLS_CA_FILE` names.
## Non-goals
@@ -67,10 +66,10 @@ to them.
one it does not know, the binary prints the commands and exits with
status 2.
- `internal/config`: reads the settings, the one place they are read.
- `internal/servewaf`: `servewaf`'s server. It runs the checks in `check`,
and holds `servewaf`'s question, answer and report. It answers
`servewaf`'s own endpoints in `answerOwnEndpoint`. It counts bytes,
refusals and anomalies, and writes the log lines.
- `internal/proxy`: `servewaf`'s server. It runs the checks in `check`, and
holds `servewaf`'s question, answer and report. It answers `servewaf`'s
own endpoints in `answerOwnEndpoint`. It counts bytes, refusals and
anomalies, and writes the log lines.
- `internal/rproxy`: the reverse proxy in front of one app that asks
`servewaf` about each request. It passes a request to the app with the
standard library's `httputil.ReverseProxy`, within the time and size
@@ -82,7 +81,7 @@ to them.
of bans is full.
- `internal/rules`: reads the rule files at start and again when they
change, and tells which rules a request matches.
- `internal/waf`: the Core Rule Set, with the seven changes listed under
- `internal/waf`: the Core Rule Set, with the six changes listed under
"Attack detection", as Coraza directives.
- `internal/lookup`: looks clients up through GeoJS or in the lookup
database.
@@ -326,10 +325,9 @@ Conventions:
lists: `SWWAF_ADMIN_TOKEN_FILE` names the file that holds `SWWAF_ADMIN_TOKEN`.
The file's contents are the value, less one newline at the end, and are
checked as the value itself would be. Setting both forms stops the start, and
so does naming a file that cannot be read. `SWWAF_LOG_REMOTE_TLS_CA_FILE` and
`SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE` already hold a file name, so they have
no `_FILE` form. No `SWRP_` setting has one, since `rproxy` never touches
disk.
so does naming a file that cannot be read. `SWWAF_LOG_REMOTE_TLS_CA_FILE`
already holds a file name, so it has no `_FILE` form. No `SWRP_` setting has
one, since `rproxy` never touches disk.
- Settings, files included, are read once at start. Changing one means
restarting the container. The files `servewaf` watches while it runs are its
state files, its rule files and the lookup database.
@@ -399,31 +397,32 @@ Conventions:
### Request rate limits, per client
Breaking one bans the client. The defaults let people read a site and stop
scrapers that send many requests slowly over hours or days. The hour limit is
the main one.
Breaking one bans the client. The defaults suit programmatic use of an API, such
as an automation fleet on another host, and still stop abusive bots. A fleet of
20 agents, each making a request every 10 seconds at its busiest, makes 120
requests a minute and 7,200 an hour. Working around the clock, it makes 172,800
a day. It stays under all three limits.
- Per minute: 120, 2 requests a second. It leaves room for a person opening two
pages at once with an empty cache. A gitea page opened with an empty cache
loads 20 to 60 files, and a handful once cached.
- Per hour: 1,500. A person reading code in gitea for a whole hour, a page every
20 seconds, makes about 900 requests. A scraper making one request every 2
seconds makes 1,800 an hour, more than the limit.
- Per day: 6,000, four hours at the hour limit. A scraper making one request
every 10 seconds makes 8,640 a day, more than the limit.
- Per minute: 500, about 8 requests a second. It leaves room for the fleet's 120
a minute and a few quick first visits with an empty cache. A gitea page opened
with an empty cache loads about 40 files. A client firing requests as fast as
it can passes the limit within seconds.
- Per hour: 20,000, about 5.5 requests a second for a whole hour. A client that
keeps up 6 a second makes 21,600 in an hour, and passes it, at 360 a minute,
under the minute limit. The fleet's 7,200 an hour is about a third of it.
- Per day: 300,000, about 3.5 requests a second around the clock. A scraper that
keeps up 4 a second makes 345,600 a day, and passes it. At 240 a minute and
14,400 an hour, it stays under the other two limits.
Counting cannot catch a client that stays under all three limits, about 4
requests a minute around the clock. Only the other checks can catch an abuser
Counting cannot catch a client that stays under all three limits, such as one
that keeps up 3 requests a second. Only the other checks can catch an abuser
that slow. They include the trap paths, the rule files, the Core Rule Set and
the blocklists. An abuser that trips none of them is not caught.
Some legitimate clients pass the limits:
- An Actions runner asks gitea for work all day and can pass the limits.
- Everyone behind one shared address, such as an office, shares one client's
limits.
Their addresses belong in `SWWAF_RATE_LIMIT_EXEMPT_NETS`.
the blocklists. An abuser that trips none of them is not caught. A machine that
keeps up more than 500 requests a minute passes the minute limit. One that keeps
up more than about 5.5 a second for an hour passes the hour limit. One that
keeps up more than about 3.5 a second all day passes the day limit, as two busy
Actions runners on one address do. Such a machine's address belongs in
`SWWAF_RATE_LIMIT_EXEMPT_NETS`.
`SWWAF_RATE_LIMIT_EXEMPT_PATHS` takes path prefixes out of the count, such as
static assets or health checks; their bytes are not counted either. A prefix is
@@ -436,10 +435,12 @@ matched the same way.
### Byte limits, per client
By default there is no minute limit, so a client can download in a burst at full
speed. The hour limit defaults to 50 GiB and the day limit to 100 GiB. They
allow several downloads of a few GiB each. A response's bytes are counted when
it ends (see step 15).
The hour and day limits sit about twice above what 40 people busy with heavy web
apps move together on one address. Each moves about 256 MiB an hour, for ten
hours a day. A response's bytes are counted when it ends (see step 15). So the
minute limit holds three of the largest responses, with their requests, ending
in the same minute. No single download then breaks a limit. An operator who
raises `SWRP_MAX_RESPONSE_SIZE` must raise the byte limits too.
### Lookup of AS number and country
@@ -585,14 +586,6 @@ sends it.
probes these rules caught (see "Rule files"). A list you give replaces the
default, so name these six ids in it to keep them off.
- `SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE` names a file of exclusions, written as
Coraza directives, which `servewaf` loads after the Core Rule Set and the
changes below. An exclusion switches one rule off for some fields or paths
only, where `SWWAF_WAF_DISABLED_RULES` switches it off everywhere.
`deploy/gitea/crs-exclusions.conf` holds gitea's. The start stops on a file
that cannot be read or does not parse. It stops too on a file that names any
number from 900000 to 900999, the ids of `smallwebwaf`'s own rules.
- `SWWAF_WAF_BODY_LIMIT` switches body inspection on, up to that size. It takes
at most `64K`, since `servewaf` gets no more of a body than that (see "The
answer"). Form data and multipart bodies are read up to the size. JSON and XML
@@ -622,7 +615,7 @@ sends it.
scanner from an ordinary client. In front of gitea, registry and git clients
get `404` and `401` by design, hundreds of times a minute.
`smallwebwaf` changes the Core Rule Set 4.25.0 in seven ways, since in front of
`smallwebwaf` changes the Core Rule Set 4.25.0 in six ways, since in front of
gitea it would otherwise refuse ordinary requests. The changes hold in front of
every app, and no setting undoes them:
@@ -679,10 +672,6 @@ every app, and no setting undoes them:
must check it itself.
6. Responses are not inspected. A raw file from a repository, such as a shell
script, looks to the response rules like source code leaking from the server.
7. The `from` parameter of a container registry's upload path,
`/v2/<image>/blobs/uploads/`, is not checked for command names (932260). A
push that reuses a layer names there the image it takes the layer from. An
image such as `owner/python3-app` would have that push refused.
The parameter and cookie names in these changes are matched without regard to
case, as Coraza matches them.
deploy/gitea/compose.yaml
-136
View File
@@ -1,136 +0,0 @@
# Gitea behind traefik, with rproxy and servewaf in front of it.
# docs/gitea.md says what each setting here does and why. Before starting it:
# - set SMALLWEBWAF_IMAGE to the smallwebwaf image, named by digest;
# - replace git.example.org with the site's host name;
# - replace each 10.99.0 with the first three numbers of a /24 subnet that
# no other network on the host uses. The /24 must lie inside 10.0.0.0/8,
# 172.16.0.0/12 or 192.168.0.0/16, because rproxy believes
# X-Forwarded-For only from those by default. Replace each fd10:99 with
# the first two hextets of an unused /64 subnet whose third and fourth
# hextets are 0, as in fd10:99::/64;
# - set GITEA_SECRET_KEY to the output of
# `docker run --rm <gitea's image below> gitea generate secret SECRET_KEY`,
# once per install, and keep it.
# Then run `docker compose up --detach` in this directory.
# script/gitea-setup checks this setup.
name: gitea
x-logging: &logging
driver: json-file
options:
max-size: 10m
max-file: "5"
services:
traefik:
# traefik v3.7.17, 2026-11-03
image: traefik@sha256:68ae5fe5b64ca166704b746a9e8afcd385e36b3f569a5691401bf652d57b3748
# traefik replaces the X-Forwarded-For header a visitor sends. Keep it
# so: otherwise a visitor could name an address on the shared network,
# and skip servewaf's checks.
command:
- --providers.docker.exposedbydefault=false
- --entrypoints.web.address=:80
- --entrypoints.web.http.redirections.entrypoint.to=websecure
- --entrypoints.websecure.address=:443
# Until a certificate resolver is added here, as for your other
# sites, traefik answers with a certificate it made itself.
- --entrypoints.websecure.http.tls=true
# traefik's own limit of 60 seconds for a whole request would cut
# off an upload long before rproxy's limit of 30 minutes.
- --entrypoints.websecure.transport.respondingTimeouts.readTimeout=30m
ports:
- 80:80
- 443:443
volumes:
- /var/run/docker.sock:/var/run/docker.sock:ro
networks:
shared:
# Containers on the shared network find traefik under the
# site's name, and so reach it from their own address.
aliases:
- git.example.org
restart: unless-stopped
gitea:
# gitea 1.27.3, 2026-08-29
image: gitea/gitea@sha256:87a67ee09d3ae0d1df5fda5dcda3e2a1f9236a45b0a59025d6e00e46adc43bef
environment:
GITEA__server__ROOT_URL: https://git.example.org/
# Gitea starts at its defaults, with SQLite, instead of showing its
# install page to whoever opens it first.
GITEA__security__INSTALL_LOCK: "true"
GITEA__security__SECRET_KEY: ${GITEA_SECRET_KEY:?set GITEA_SECRET_KEY, see docs/gitea.md}
# Accounts are made with `gitea admin user create`.
GITEA__service__DISABLE_REGISTRATION: "true"
# rproxy's addresses. Gitea then takes each visitor's address from
# the X-Real-Ip header traefik sets and rproxy passes on.
GITEA__security__REVERSE_PROXY_TRUSTED_PROXIES: 10.99.0.2,fd10:99::2
volumes:
- gitea-data:/data
networks:
- shared
restart: unless-stopped
rproxy:
image: ${SMALLWEBWAF_IMAGE:?set SMALLWEBWAF_IMAGE to the smallwebwaf image}
environment:
SWRP_WAF_BACKEND: http://servewaf:8080
SWRP_UPSTREAM_URL: http://gitea:3000
# Pushes, LFS objects, packages and release attachments of up to
# 2 GiB, sent in up to 30 minutes.
SWRP_MAX_REQUEST_SIZE: 2G
SWRP_MAX_REQUEST_TIME_MS: "1800000"
# 15 minutes for a clone or a download, half the default.
SWRP_MAX_RESPONSE_TIME_MS: "900000"
labels:
traefik.enable: "true"
traefik.http.routers.gitea.rule: Host(`git.example.org`)
traefik.http.routers.gitea.entrypoints: websecure
traefik.http.services.gitea.loadbalancer.server.port: "8080"
networks:
shared:
ipv4_address: 10.99.0.2
ipv6_address: fd10:99::2
logging: *logging
restart: unless-stopped
servewaf:
image: ${SMALLWEBWAF_IMAGE:?set SMALLWEBWAF_IMAGE to the smallwebwaf image}
environment:
SMALLWEBWAF_COMMAND: servewaf
# The containers on the shared network skip the checks. Add the
# address of an automation fleet on another host here too; without
# that, it is counted like any client.
SWWAF_ALLOW_NETS: 10.99.0.128/25,fd10:99:0:0:8000::/65
# The Core Rule Set's exclusions for Gitea's searches, file names
# and branch names.
SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE: /etc/smallwebwaf/crs-exclusions.conf
volumes:
- servewaf-state:/var/lib/smallwebwaf
- ./crs-exclusions.conf:/etc/smallwebwaf/crs-exclusions.conf:ro
networks:
- shared
logging: *logging
restart: unless-stopped
networks:
# The network traefik and Gitea share. Its containers get addresses in the
# upper half of each subnet, which servewaf lets skip the checks. Each
# subnet's gateway, the host's own address on it, stays out of that half:
# requests docker passes on from a published port can come from it.
shared:
enable_ipv6: true
ipam:
config:
- subnet: 10.99.0.0/24
ip_range: 10.99.0.128/25
gateway: 10.99.0.1
- subnet: fd10:99::/64
ip_range: fd10:99:0:0:8000::/65
gateway: fd10:99::1
volumes:
gitea-data:
servewaf-state:
deploy/gitea/crs-exclusions.conf
-96
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@@ -1,96 +0,0 @@
# The Core Rule Set's exclusions for Gitea, which servewaf loads from
# SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE. Each switches one rule off for the
# Gitea fields or paths where it refused ordinary Gitea requests. Gitea
# sends these in the query string:
# - q: the text of every search;
# - file, path, template, body and redirect_to: a file name, alone or in
# JSON or a link;
# - name, tag, rule_name and refSubUrl: a branch or tag name.
# docs/gitea.md says how to add an exclusion.
# Searches.
# 930110: a search for ../
SecRuleUpdateTargetById 930110 "!ARGS:q"
# 931100: a search for http://127.0.0.1:8080
SecRuleUpdateTargetById 931100 "!ARGS:q"
# 932140: a search for if (a == b) {
SecRuleUpdateTargetById 932140 "!ARGS:q"
# 932235: a search for `make check`
SecRuleUpdateTargetById 932235 "!ARGS:q"
# 932250: a search for ls -la
SecRuleUpdateTargetById 932250 "!ARGS:q"
# 932380: a search for `whoami`
SecRuleUpdateTargetById 932380 "!ARGS:q"
# 933135: a search for ${VAR}
SecRuleUpdateTargetById 933135 "!ARGS:q"
# 934110: a search for http://127.0.0.1:8080
SecRuleUpdateTargetById 934110 "!ARGS:q"
# 941100: a search for <script>
SecRuleUpdateTargetById 941100 "!ARGS:q"
# 941110: a search for <script>, or a page opened from its results
SecRuleUpdateTargetById 941110 "!ARGS:q|!REQUEST_HEADERS:Referer"
# 941160: a search for <img src=, or a page opened from its results
SecRuleUpdateTargetById 941160 "!ARGS:q|!REQUEST_HEADERS:Referer"
# 941390: a search for fetch(
SecRuleUpdateTargetById 941390 "!ARGS:q"
# 942100: a search for SELECT * FROM users WHERE
SecRuleUpdateTargetById 942100 "!ARGS:q"
# 942190: a search for union select
SecRuleUpdateTargetById 942190 "!ARGS:q"
# 942230: a search for if (a == b) {
SecRuleUpdateTargetById 942230 "!ARGS:q"
# 944100: a search for java.lang.Runtime, or a page opened from its results
SecRuleUpdateTargetById 944100 "!ARGS:q|!REQUEST_HEADERS:Referer"
# Searches, and file, branch and tag names.
# 930120: a search for package.json, or the commit graph of .gitignore
SecRuleUpdateTargetById 930120 "!ARGS:q|!ARGS:file|!ARGS:template|!ARGS:body|\
!ARGS:refSubUrl|!ARGS:name|!ARGS:tag|!ARGS:rule_name"
# 932160: a search for /bin/sh, or the API's contents of bin/docker-entrypoint
SecRuleUpdateTargetById 932160 "!ARGS:q|!ARGS:file|!ARGS:template|!ARGS:body|\
!ARGS:refSubUrl|!ARGS:name|!ARGS:tag|!ARGS:rule_name"
# 932260: a search for python3, or deleting the branch docker-build
SecRuleUpdateTargetById 932260 "!ARGS:q|!ARGS:file|!ARGS:template|!ARGS:body|\
!ARGS:refSubUrl|!ARGS:name|!ARGS:tag|!ARGS:rule_name"
# Searches, and file names in the query string.
# 932120: a search for Invoke-WebRequest, or the commits of install-script.sh
SecRuleUpdateTargetById 932120 "!ARGS:q|!ARGS:file|!ARGS:path|!ARGS:template|\
!ARGS:body|!ARGS:redirect_to"
# 932130: a search for $(pwd), or an issue opened from the template [draft].md
SecRuleUpdateTargetById 932130 "!ARGS:q|!ARGS:file|!ARGS:path|!ARGS:template|\
!ARGS:body|!ARGS:redirect_to"
# 934100: a search for process.env, or the commits of process.env.d.ts
SecRuleUpdateTargetById 934100 "!ARGS:q|!ARGS:file|!ARGS:path|!ARGS:template|\
!ARGS:body|!ARGS:redirect_to"
# 934130: a search for __proto__, or the commits of __proto__.json
SecRuleUpdateTargetById 934130 "!ARGS:q|!ARGS:file|!ARGS:path|!ARGS:template|\
!ARGS:body|!ARGS:redirect_to"
# 941130: the commits of index.xhtml
SecRuleUpdateTargetById 941130 "!ARGS:file|!ARGS:path|!ARGS:template|\
!ARGS:body|!ARGS:redirect_to"
# 941180: a search for document.cookie, or the commits of document.write.js
SecRuleUpdateTargetById 941180 "!ARGS:q|!ARGS:file|!ARGS:path|!ARGS:template|\
!ARGS:body|!ARGS:redirect_to"
# 942140: the commits of information_schema.sql
SecRuleUpdateTargetById 942140 "!ARGS:file|!ARGS:path|!ARGS:template|\
!ARGS:body|!ARGS:redirect_to"
# 944110: a search for java.lang.Runtime, or the commits of Runtime.java
SecRuleUpdateTargetById 944110 "!ARGS:q|!ARGS:file|!ARGS:path|!ARGS:template|\
!ARGS:body|!ARGS:redirect_to"
# 944130: a search for java.lang.Runtime, the commits of java.lang.String.md,
# or any page opened from that file's page, which names it in the Referer
SecRuleUpdateTargetById 944130 "!ARGS:q|!ARGS:file|!ARGS:path|!ARGS:template|\
!ARGS:body|!ARGS:redirect_to|!REQUEST_HEADERS:Referer"
# File names in the path of a file's page, raw file, blame, history and edit
# page, and of the API's calls for its contents.
# 934100: the page of process.env.d.ts
SecRule REQUEST_FILENAME "@rx ^/(?:api/v1/repos/)?[^/]+/[^/]+/(?:src|raw|media|blame|commits|_edit|_delete|contents)/" \
"id:10001,phase:1,pass,nolog,ctl:ruleRemoveTargetById=934100;REQUEST_FILENAME"
# 941130: the page of docs/a b.xhtml
SecRule REQUEST_FILENAME "@rx ^/(?:api/v1/repos/)?[^/]+/[^/]+/(?:src|raw|media|blame|commits|_edit|_delete|contents)/" \
"id:10002,phase:1,pass,nolog,ctl:ruleRemoveTargetById=941130;REQUEST_FILENAME"
# 944130: the page of java.lang.String.md
SecRule REQUEST_FILENAME "@rx ^/(?:api/v1/repos/)?[^/]+/[^/]+/(?:src|raw|media|blame|commits|_edit|_delete|contents)/" \
"id:10003,phase:1,pass,nolog,ctl:ruleRemoveTargetById=944130;REQUEST_FILENAME"
docs/gitea.md
+178 -165
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@@ -1,207 +1,220 @@
# smallwebwaf in front of gitea
`deploy/gitea/compose.yaml` runs gitea behind traefik, with `rproxy` and
`servewaf` in front of it. This document says what that setup sets and why, and
what the defaults would do without it. [`SPEC.md`](../SPEC.md) says how
`smallwebwaf` behaves.
These notes record what `smallwebwaf` does in front of gitea at the default
settings. They are observations, not requirements; the requirements are in
[`SPEC.md`](../SPEC.md). `script/gitea-requests` runs gitea behind `rproxy` and
`servewaf`, and sends through them a sample of gitea's ordinary use and the
requests named below. It reports each request the Core Rule Set refuses, so that
these notes can be checked again when gitea or the Core Rule Set changes
version.
## The setup
## What the defaults cover
Four containers share one Docker network, the shared network:
- SSH access to gitea does not pass through `smallwebwaf` and is not protected
by it.
- A clone is a response. It fits the defaults of 30 minutes and 1 GiB unless the
repository is large or the link slow. A repository whose clone is larger than
1 GiB needs `SWRP_MAX_RESPONSE_SIZE` raised, and the byte limits with it
("Byte limits, per client" in `SPEC.md`).
- A push is a request, and so is every other upload:
- a git push;
- an LFS object;
- a container image layer;
- a package file;
- a release attachment.
- traefik, which routes the site's HTTPS requests to `rproxy`, and redirects
plain HTTP to HTTPS;
- `rproxy`, in front of gitea;
- gitea 1.27.3, as its image comes;
- `servewaf`, with a volume for its state files, and with
`deploy/gitea/crs-exclusions.conf` mounted read-only.
At the defaults, an upload larger than 100 MiB or taking more than 60
seconds is cut off ("`rproxy`'s limits" in `SPEC.md`). A gitea that takes
large uploads needs `SWRP_MAX_REQUEST_SIZE` and `SWRP_MAX_REQUEST_TIME_MS`
raised to fit.
To start it:
- Archive download and blame or history pages are what scrapers hammer. The
request limits do most of the work there.
- An Actions runner that reaches gitea through `smallwebwaf` sends requests all
day. One older than version 0.4 (April 2026) asks for work every 2 seconds,
43,200 requests a day. While it runs a job, it reports the job's log and state
every second instead, two requests a second. So one runner busy all day sends
120 requests a minute and 172,800 a day, under the request limits. Two such
runners on one address, each busy all day, make 345,600 and pass the day limit
of 300,000. Three busy at once make 21,600 an hour and pass the hour limit of
20,000. Five busy at once make 600 a minute and pass the minute limit of 500.
Their address is then banned, their running jobs fail, and each repeat within
a day makes the ban longer. Newer runners ask for work less often. Put the
runners' addresses in `SWWAF_RATE_LIMIT_EXEMPT_NETS`.
1. In `deploy/gitea/compose.yaml`, replace `git.example.org` with the site's
host name.
2. Replace each `10.99.0` with the first three numbers of a `/24` subnet that no
other network on the host uses. The `/24` must lie inside `10.0.0.0/8`,
`172.16.0.0/12` or `192.168.0.0/16`, because `rproxy` believes
`X-Forwarded-For` only from those by default. Replace each `fd10:99` with the
first two hextets of an unused `/64` subnet whose third and fourth hextets
are 0, as in `fd10:99::/64`.
3. Set `SMALLWEBWAF_IMAGE` to the `smallwebwaf` image, named by digest.
4. Set `GITEA_SECRET_KEY` to the output of
`docker run --rm <gitea's image> gitea generate secret SECRET_KEY`, with
gitea's image as `deploy/gitea/compose.yaml` names it. Do this once per
install, and keep the key.
5. Run `docker compose up --detach` in `deploy/gitea`, with
`crs-exclusions.conf` beside `compose.yaml`.
6. Make gitea's first user with `gitea admin user create`, in gitea's container,
as the user `git`.
## What the Core Rule Set lets through
Sign-up is off: accounts are made with `gitea admin user create`. gitea starts
at its defaults, with SQLite. traefik answers with a certificate it made itself
until you add a certificate resolver, as for your other sites. SSH to gitea does
not pass through `smallwebwaf`; publish gitea's SSH port yourself if you use it.
At the defaults, the Core Rule Set lets gitea's ordinary use through, apart from
the refusals in the next section:
`make gitea-setup` checks the setup. It builds the image, brings the setup up
under a name of its own, and checks:
- browsing and views of files in a repository, with their history, blame and the
file tree;
- diffs, including their hidden lines and large files, and pull request review;
- git's clone, fetch and push over HTTP;
- signing in, including the return to the page a visitor came from, and sign-in
with Git Credential Manager, git-credential-oauth or tea;
- the API's calls for a file and its commits;
- pushing and pulling container images and packages;
- Actions runners, and artifacts uploaded with `actions/upload-artifact@v4`;
- posting issues, pull requests, comments, wiki pages and files saved in the web
editor, code included, since no body is read;
- the page gitea shows after a change, with its message naming what was done.
- that a page load, a push and a clone sent through traefik pass through
`rproxy`, and that `servewaf` checks them;
- that gitea logs the visitor's address, not `rproxy`'s;
- that a request from a container on the shared network skips the checks;
- that the Core Rule Set refuses none of the ordinary gitea requests in
`internal/waf/testdata/gitea-requests.txt`, sent by a signed-in user, nor an
API call with a JSON body, nor a file saved through the API;
- that it refuses SQL injection, path traversal and script injection in a query
string;
- that with `servewaf` stopped, gitea still answers through `rproxy`.
## What the Core Rule Set still refuses
## Uploads and downloads
Each refusal answers only that request ("Bans" in `SPEC.md` says what it counts
toward). The request log names the rule in `waf_rule_ids`, which
`SWWAF_WAF_DISABLED_RULES` can switch off.
An upload is a request:
### A query string that reads as an attack
- a git push;
- an LFS object;
- a container image layer;
- a package file;
- a release attachment.
Most often this is a search. A search term is a query parameter, which the Core
Rule Set checks against its lists of system files and commands (see the fourth
change under "Attack detection" in `SPEC.md`). A release attachment uploaded
through the API as `docker-compose.yml` is refused the same way. Examples:
The setup lets an upload of up to 2 GiB, sent in up to 30 minutes, through:
- a name on those lists, such as `package.json`, `.gitignore` or
`docker-compose.yml`;
- text that starts with a command name, such as `python3` or `ssh key`, or has
one right after a `/` in its first word, such as `feat/docker-support`;
- a shell command with its options or a system path (`ls -la`, `sed -i`,
`/bin/sh`), or a command in backticks;
- script code (`fetch(`, `${VAR}`, `process.env`), HTML (`<img src=`) or an SQL
statement (`SELECT * FROM users WHERE`);
- a URL naming an IP address or `localhost`.
- `SWRP_MAX_REQUEST_SIZE` is `2G`. At the default, an upload over 100 MiB is cut
off.
- `SWRP_MAX_REQUEST_TIME_MS` is `1800000`, 30 minutes. At the default, an upload
that takes over 60 seconds is cut off.
- traefik's `readTimeout` is 30 minutes. traefik's own default of 60 seconds for
a whole request would cut off an upload first.
### A branch, tag or file name that starts with a command name
A clone or a download is a response:
The Core Rule Set's list of commands (932260) holds names such as `docker-`,
`python3`, `ansible`, `base64` and `whoami`. A query parameter holding a branch,
tag or file name that starts with one is refused. So is one that has such a name
right after a `/`, such as `feat/docker-support`, `fix/docker-build` or
`renovate/docker-build-push-action-6.x`. gitea's own pages send the name in a
query parameter that 930120, 932160 and 932260 still check:
- `SWRP_MAX_RESPONSE_TIME_MS` is `900000`, 15 minutes, half the default. A clone
or download that takes longer is cut off.
- `SWRP_MAX_RESPONSE_SIZE` stays at its default, 1 GiB. A repository whose clone
is larger needs it raised.
- `refSubUrl`, the branch or tag of a directory listing. A listing sends it when
it asks for its entries' last commits in a second request. It does so whenever
gitea takes more than a second to work them out;
- `name`, when a branch is deleted or restored on the branches page;
- `tag`, when a release is started from a tag;
- `template`, the file of an issue template, when an issue is opened from it;
- `rule_name`, when a branch protection rule is opened for editing in the
repository's settings or has just been saved.
The byte limits stay at their defaults: no minute limit, 50 GiB an hour and 100
GiB a day.
What a visitor sees, for a branch named `docker-build`:
## The checks
- A directory listing that makes that second request leaves those last commits
out and shows an error.
- The branches page shows an error instead of deleting or restoring the branch.
- A release started from such a tag gets the `403` answer of `smallwebwaf` in
place of its form. So does an issue opened from such a template, and such a
rule opened for editing.
- Saving such a rule stores it. gitea then returns to the branch settings page,
which gets the `403` answer, so the save looks as if it failed.
The Core Rule Set runs in `block` mode, the default, with gitea's exclusions
(see "The Core Rule Set's exclusions" below).
### A file name in a query parameter that trips the code rules
Every other check stays at its default. A client may make 120 requests a minute,
1,500 an hour and 6,000 a day. Archive downloads and blame and history pages are
what scrapers hammer, and these limits do most of the work there.
The Core Rule Set's rules for Java, script, PowerShell and SQL find what they
look for in some file names. This holds too in the ten query parameters that
930120, 932160 and 932260 do not check (see the fourth change under "Attack
detection" in `SPEC.md`). Examples:
## The shared network
- `runtime` in OpenJDK's `src/java.base/share/classes/java/lang/Runtime.java`
(944110);
- a Java class, as in `java.lang.String.md` (944130);
- `document.write.js` (941180);
- `process.env.d.ts` (934100);
- `__proto__` (934130);
- the PowerShell command `Install-Script`, as in `install-script.sh` (932120);
- a database's name, as in PostgreSQL's `information_schema.sql` (942140).
Containers on the shared network skip `servewaf`'s checks:
For such a file, these requests are refused:
- The shared network's subnets are `10.99.0.0/24` and `fd10:99::/64`. Docker
gives its containers addresses in the upper half of each, `10.99.0.128/25` and
`fd10:99:0:0:8000::/65`, which `SWWAF_ALLOW_NETS` names.
- traefik is known on the shared network by the site's host name. So a container
there that asks for the site reaches traefik from its own address. An
automation fleet in such a container skips the checks.
- Each subnet's gateway, `10.99.0.1` and `fd10:99::1`, is the host's own address
on it. Requests docker passes on from a published port can come from the
gateway, so the gateways are left out of `SWWAF_ALLOW_NETS`. The network has
IPv6, so a visitor over IPv6 reaches traefik from its own address, and
`servewaf` checks it as itself.
- A container on the shared network that asks for the site at the host's public
address arrives from the gateway. It is checked like any visitor.
- A fleet on another host can have its address added to `SWWAF_ALLOW_NETS`.
Without that, it is counted like any client.
- traefik replaces the `X-Forwarded-For` a visitor sends, by default. Keep it
so: otherwise a visitor could name an address on the shared network, and skip
the checks.
- Anything on the shared network can reach gitea and `servewaf` around `rproxy`.
Put only containers you trust on it.
- the API's list of its commits (`path`);
- the API's call for the contents of files that names it in its query (`body`);
- the commit graph of that file alone (`file`);
- the hidden lines of its diff (`path`), which stay hidden;
- the sign-in page, for a visitor who opens a page of the file that needs
signing in, such as its edit page (`redirect_to`). The visitor can still sign
in by opening the sign-in page itself.
## gitea's settings
### A path
- `REVERSE_PROXY_TRUSTED_PROXIES` names `rproxy`'s fixed addresses, `10.99.0.2`
and `fd10:99::2`. gitea then takes each visitor's address from the `X-Real-Ip`
header, which traefik sets and `rproxy` passes on. Without it, gitea logs
every visitor as `rproxy`.
- `INSTALL_LOCK` is `true`, as "The setup" above says.
- A file name ending in `~`, or an `.xhtml` file whose path holds a space.
- A path that holds what the Core Rule Set takes for a Java class (944130), as
`java.lang.String.md` and
`META-INF/services/org.apache.commons.logging.LogFactory` do.
- A path that holds what it takes for Node.js code (934100), as
`process.env.d.ts` does.
- A path with a directory named `...` (930100, 930110), such as `.../notes.txt`.
## Methods
For such a file, these are refused:
`rproxy` passes on only these methods: `GET`, `HEAD`, `POST`, `OPTIONS`, `PUT`,
`DELETE`, `PATCH` and `QUERY`. gitea 1.27.3 needs no other. Its routes use:
- the page of the file;
- its raw file;
- its history and its blame;
- its edit page.
- pages and the API: `GET`, `HEAD`, `POST`, `PUT`, `PATCH` and `DELETE`;
- git's push, clone and fetch over HTTP: `GET`, `POST` and `OPTIONS`;
- LFS: `GET`, `POST` and `PUT`;
- the container registry and the other package registries: `GET`, `HEAD`,
`POST`, `PUT`, `PATCH` and `DELETE`;
- Actions runners: `POST`.
The directory that holds it lists it, and a clone carries it.
## The log
### A container image push that reuses a layer
`rproxy` and `servewaf` write each query string to the log whole. A token sent
in the query string, as `?token=`, is then in the log. Send it in the
`Authorization` header instead.
A push can reuse a layer of an image docker has pushed to that gitea before.
docker then asks gitea to take the layer from that image, naming it in the query
parameter `from`, which 932260 checks. The request is refused when the image's
owner starts with an entry on the list of commands. It is refused too when the
image's name after the owner starts with one. Examples are `owner/python3-app`,
`owner/docker-base`, and any image of an owner named `ansible` or `docker-team`.
## Actions runners
What happens next depends on docker's image store. A docker that keeps its
images in containerd's image store fails the push, and fails each new try the
same way. A new install of Docker Engine 29 does this. A docker that keeps them
in its own older image store uploads the layer instead. The push then succeeds
after one refusal for each layer it reuses, and each of those refusals counts
toward the error burst ("Attack detection" in `SPEC.md`).
A runner on the shared network skips the checks. One on another host is counted
like any client. A runner older than version 0.4 (April 2026) asks for work
every 2 seconds, 1,800 requests an hour. While it runs a job, it reports the
job's log and state every second instead, two requests a second.
### Artifact uploads from `actions/upload-artifact@v3`
So one idle runner makes 1,800 requests an hour, more than the hour limit of
1,500. A busy one, at two requests a second, passes the minute limit of 120
within two minutes. Its address is then banned, its running jobs fail, and each
repeat within a day makes the ban longer. Newer runners ask for work less often.
Put the runners' addresses in `SWWAF_RATE_LIMIT_EXEMPT_NETS`.
This action sends the header `Content-Range`, which the Core Rule Set refuses
(920450). The action sends two files at a time, does not retry a `403`, and
sends no further file once one is refused. So an upload is refused once or
twice, however many files it holds, and the step fails. One upload does not ban
the runner. The error burst ("Attack detection" in `SPEC.md`) bans it after more
than 30 such refusals from its address in a minute, as when many jobs upload at
once. `actions/upload-artifact@v4` does not send the header.
## The Core Rule Set's exclusions
## What body inspection refuses
`deploy/gitea/crs-exclusions.conf` switches single Core Rule Set rules off where
they refused ordinary gitea requests. `servewaf` loads it from
`SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE`. Each exclusion covers one rule, in these
places only:
With `SWWAF_WAF_BODY_LIMIT` set, the Core Rule Set reads request bodies too. In
front of gitea it then refuses these, until their rule ids, named in the request
log, are added to `SWWAF_WAF_DISABLED_RULES`:
- `q`, the text of every search;
- the query parameters that hold a file name: `file`, `path`, `template`, `body`
and `redirect_to`;
- the query parameters that hold a branch or tag name: `name`, `tag`,
`rule_name` and `refSubUrl`;
- `Referer`, on a page opened from search results or from a file's page;
- the path of a file's page, raw file, blame, history and edit page, and of the
API's call for its contents.
- issue and comment text, wiki pages and files saved in the web editor that hold
shell commands or code (932125, 932235, 932250 and others);
- package descriptions that show code;
- PyPI uploads (922130);
- attachments named like `debug.log` or `config.yml` (932180).
gitea reads these as text to search for, or as names in a repository. It never
runs them as SQL, a command or a page's script. So an attack that only the
excluded rules would catch there reaches gitea and does nothing. Every other
field and path keeps every rule.
## What `script/gitea-requests` sends
To add an exclusion for a request the Core Rule Set refuses:
Of the requests above, the script sends:
1. Find the request in `servewaf`'s log. Its line gives the path and query, and
names the rules in `waf_rule_ids`.
2. For each rule, add a `SecRuleUpdateTargetById` line naming the field it
matched, as the file's other lines do. For a path, copy one of the file's
`SecRule REQUEST_FILENAME` rules and give it a new id. An id from 900000 to
900999 stops the start.
3. Above it, write a one-line comment naming the request it refused.
4. Add the request to `internal/waf/testdata/gitea-requests.txt`, and run
`make check`.
5. Restart `servewaf`.
- for each file named under "A file name in a query parameter that trips the
code rules", the API's list of its commits;
- for `Runtime.java` alone, the commit graph of that file, the hidden lines of
its diff, and the API's call for the contents of files that names it;
- the sign-in page for a visitor who opens the edit page of `document.write.js`;
- the pages of `java.lang.String.md`,
`META-INF/services/org.apache.commons.logging.LogFactory`, `process.env.d.ts`
and `.../notes.txt`;
- one container image push that reuses a layer, which it does not try again.
The Core Rule Set still refuses these gitea requests:
It does not send the raw file, history, blame or edit page of those four files,
or the pages of the directories `META-INF/services` and `...`. It also sends a
short sample of gitea's ordinary use:
- the page of a file whose name ends in `~`, such as an editor's backup file.
Rule 920500 checks the path before any exclusion takes effect.
- the page of a file in a directory named `...`, which reads as path traversal;
- an artifact upload from `actions/upload-artifact@v3`, which sends the header
`Content-Range`. `actions/upload-artifact@v4` does not.
With `SWWAF_WAF_BODY_LIMIT` set, it also refuses issue text, comments, wiki
pages and files saved in the web editor that hold shell commands or code.
`make gitea-requests` runs gitea behind `rproxy` and `servewaf` at the defaults,
without these exclusions. It reports each request the Core Rule Set refuses
there.
- signing in;
- pages of files and commits, and a diff;
- the API;
- a push, and clone and fetch over HTTP;
- two container image pushes.
docs/settings.md
+15 -22
View File
@@ -99,22 +99,19 @@ chooses between the two (see "The image's command" below).
## Request rate limits, per client
- `SWWAF_RATE_LIMIT_PER_MINUTE` (default `120`, 2 a second): the most requests a
client may make in a minute. A count or `off`. The default leaves room for a
person opening two gitea pages at once with an empty cache, up to 60 files
each.
- `SWWAF_RATE_LIMIT_PER_HOUR` (default `1500`): the most requests a client may
make in an hour. A count or `off`. It is the main limit against scrapers. A
person reading code in gitea for an hour, a page every 20 seconds, makes
about 900. A scraper making one request every 2 seconds makes 1,800 an hour,
more than the limit.
- `SWWAF_RATE_LIMIT_PER_DAY` (default `6000`): the most requests a client may
make in a day. A count or `off`. The default is four hours at the hour limit.
A scraper making one request every 10 seconds makes 8,640 a day, more than the
limit.
- An Actions runner asks gitea for work all day and can pass the limits. Put the
runners' addresses in `SWWAF_RATE_LIMIT_EXEMPT_NETS`. Do the same for a
network where many people share one address, such as an office.
- `SWWAF_RATE_LIMIT_PER_MINUTE` (default `500`, about 8 a second): the most
requests a client may make in a minute. A count or `off`. The default catches,
within seconds, a client firing requests as fast as it can. It leaves room for
a fleet of about 20 agents at its busiest, about 120 requests a minute. It
also leaves room for a few quick first visits to gitea with an empty cache,
about 40 files each.
- `SWWAF_RATE_LIMIT_PER_HOUR` (default `20000`, about 5.5 a second): the most
requests a client may make in an hour. A count or `off`. The default leaves
room for an automation fleet at work. It catches a client that keeps up more
than about 5.5 a second for an hour.
- `SWWAF_RATE_LIMIT_PER_DAY` (default `300000`, about 3.5 a second): the most
requests a client may make in a day. A count or `off`. The default catches a
scraper that keeps up 4 a second around the clock.
- Counting cannot catch a client that stays under all three limits (see "Request
rate limits, per client" in [`SPEC.md`](../SPEC.md)).
- `SWWAF_RATE_LIMIT_EXEMPT_PATHS` (default empty): path prefixes exempt from
@@ -122,8 +119,8 @@ chooses between the two (see "The image's command" below).
## Byte limits, per client
- `SWWAF_BYTES_LIMIT_PER_MINUTE` (default `off`), `SWWAF_BYTES_LIMIT_PER_HOUR`
(default `50G`) and `SWWAF_BYTES_LIMIT_PER_DAY` (default `100G`): the most
- `SWWAF_BYTES_LIMIT_PER_MINUTE` (default `4G`), `SWWAF_BYTES_LIMIT_PER_HOUR`
(default `20G`) and `SWWAF_BYTES_LIMIT_PER_DAY` (default `200G`): the most
bytes counted for a client in each window. A size or `off`.
- `SWWAF_BYTES_COUNT` (default `both`): which body bytes the byte limits count:
`response`, `request` or `both`.
@@ -192,10 +189,6 @@ chooses between the two (see "The image's command" below).
the Core Rule Set reads, a size of at most `64K`. A question carries no more
of a body than 64 KiB, and the Core Rule Set reads at most 64 KiB less one
byte of it, whatever the value (see "The answer" in [`SPEC.md`](../SPEC.md)).
- `SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE` (default unset): a file of Core Rule Set
exclusions, written as Coraza directives, loaded after the Core Rule Set. A
file that cannot be read or does not parse stops the start. So does a file
that names any number from 900000 to 900999. It has no `_FILE` form.
- `SWWAF_ERROR_BURST_THRESHOLD` (default `30`): the most refusals of one client
in a minute (see "Attack detection" in `SPEC.md`). A count or `off`.
internal/config/config.go
+14 -29
View File
@@ -221,15 +221,12 @@ type Config struct {
// WAFExemptPaths the path prefixes it does not inspect
// (SWWAF_WAF_EXEMPT_PATHS), and WAFBodyLimit the most of a request body
// it reads (SWWAF_WAF_BODY_LIMIT), 0 while it is off and it reads none.
// CoreRuleSetExclusionsFile is the path of the file of its exclusions
// (SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE), "" while there is none.
WAFMode string
WAFParanoiaLevel int
WAFAnomalyThreshold int
WAFDisabledRules []int
WAFExemptPaths []string
WAFBodyLimit int64
CoreRuleSetExclusionsFile string
WAFMode string
WAFParanoiaLevel int
WAFAnomalyThreshold int
WAFDisabledRules []int
WAFExemptPaths []string
WAFBodyLimit int64
// TrapPaths are the paths a request for which is a clear sign of
// attack (SWWAF_TRAP_PATHS), each starting with / and without a ?.
TrapPaths []string
@@ -471,13 +468,13 @@ func FromEnvironment(lookupEnv func(string) (string, bool)) (*Config, error) {
AllowNets: env.netblocks("SWWAF_ALLOW_NETS", ""),
RateLimitExemptNets: env.netblocks("SWWAF_RATE_LIMIT_EXEMPT_NETS", ""),
DenyNets: env.netblocks("SWWAF_DENY_NETS", ""),
RateLimitPerMinute: env.count("SWWAF_RATE_LIMIT_PER_MINUTE", "120"),
RateLimitPerHour: env.count("SWWAF_RATE_LIMIT_PER_HOUR", "1500"),
RateLimitPerDay: env.count("SWWAF_RATE_LIMIT_PER_DAY", "6000"),
RateLimitPerMinute: env.count("SWWAF_RATE_LIMIT_PER_MINUTE", "500"),
RateLimitPerHour: env.count("SWWAF_RATE_LIMIT_PER_HOUR", "20000"),
RateLimitPerDay: env.count("SWWAF_RATE_LIMIT_PER_DAY", "300000"),
RateLimitExemptPaths: env.pathPrefixes("SWWAF_RATE_LIMIT_EXEMPT_PATHS", ""),
BytesLimitPerMinute: env.size("SWWAF_BYTES_LIMIT_PER_MINUTE", "off"),
BytesLimitPerHour: env.size("SWWAF_BYTES_LIMIT_PER_HOUR", "50G"),
BytesLimitPerDay: env.size("SWWAF_BYTES_LIMIT_PER_DAY", "100G"),
BytesLimitPerMinute: env.size("SWWAF_BYTES_LIMIT_PER_MINUTE", "4G"),
BytesLimitPerHour: env.size("SWWAF_BYTES_LIMIT_PER_HOUR", "20G"),
BytesLimitPerDay: env.size("SWWAF_BYTES_LIMIT_PER_DAY", "200G"),
BytesCount: env.bytesCount("SWWAF_BYTES_COUNT", "both"),
LookupSource: env.lookupSource("SWWAF_LOOKUP_SOURCE", "geojs"),
LookupDBPath: env.value("SWWAF_LOOKUP_DB_PATH", ""),
@@ -526,10 +523,8 @@ func FromEnvironment(lookupEnv func(string) (string, bool)) (*Config, error) {
WAFAnomalyThreshold: env.numberOrOff("SWWAF_WAF_ANOMALY_THRESHOLD", "5"),
WAFDisabledRules: env.ruleIDs("SWWAF_WAF_DISABLED_RULES",
"920340,920420,920440,920640,930130,930140"),
WAFExemptPaths: env.pathPrefixes("SWWAF_WAF_EXEMPT_PATHS", ""),
WAFBodyLimit: env.wafBodyLimit("SWWAF_WAF_BODY_LIMIT", off),
CoreRuleSetExclusionsFile: env.filePath(
"SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE"),
WAFExemptPaths: env.pathPrefixes("SWWAF_WAF_EXEMPT_PATHS", ""),
WAFBodyLimit: env.wafBodyLimit("SWWAF_WAF_BODY_LIMIT", off),
TrapPaths: env.trapPaths("SWWAF_TRAP_PATHS"),
ErrorBurstThreshold: env.count("SWWAF_ERROR_BURST_THRESHOLD", "30"),
LogRemoteURL: env.logRemoteURL("SWWAF_LOG_REMOTE_URL"),
@@ -1194,16 +1189,6 @@ func (e *environment) logRemoteURL(name string) *url.URL {
return remote
}
// filePath reads a setting that is the path of a file, "" while it is
// unset. Its value names a file already, so, unlike the other settings,
// it has no _FILE form. Whoever uses the file reads it.
func (e *environment) filePath(name string) string {
path, _ := e.lookupEnv(name)
e.settings = append(e.settings, slog.String(name, path))
return path
}
// certificates reads a setting that is the path of a file of PEM
// certificates. Unset or empty, it is nil. Its value names a file
// already, so, unlike the other settings, it has no _FILE form.
internal/config/config_test.go
+16 -20
View File
@@ -87,7 +87,6 @@ const (
wafDisabledRules = "SWWAF_WAF_DISABLED_RULES"
wafExemptPaths = "SWWAF_WAF_EXEMPT_PATHS"
wafBodyLimit = "SWWAF_WAF_BODY_LIMIT"
exclusionsFile = "SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE"
trapPaths = "SWWAF_TRAP_PATHS"
errorBurstThreshold = "SWWAF_ERROR_BURST_THRESHOLD"
logRemoteURL = "SWWAF_LOG_REMOTE_URL"
@@ -245,9 +244,9 @@ func TestDefaults(t *testing.T) {
wantSettings(t, cfg, config.Config{
ListenAddr: ":8080",
Observe: false,
RateLimitPerMinute: 120,
RateLimitPerHour: 1500,
RateLimitPerDay: 6000,
RateLimitPerMinute: 500,
RateLimitPerHour: 20000,
RateLimitPerDay: 300000,
BanResponse: 403,
LimitBanDuration: time.Hour,
LimitBanRepeatWindow: 24 * time.Hour,
@@ -267,8 +266,8 @@ func TestDefaults(t *testing.T) {
LookupSource: defaultLookupSource, LookupTimeout: 800 * time.Millisecond,
})
wantByteLimitSettings(t, cfg, config.Config{
BytesLimitPerMinute: 0, BytesLimitPerHour: 50 << 30,
BytesLimitPerDay: 100 << 30, BytesCount: "both",
BytesLimitPerMinute: 4 << 30, BytesLimitPerHour: 20 << 30,
BytesLimitPerDay: 200 << 30, BytesCount: "both",
})
wantNetblocks(t, cfg.AllowNets)
@@ -309,7 +308,7 @@ func TestNoSingleRequestBreaksAByteLimitAtTheDefaults(t *testing.T) {
for _, limit := range []int64{
cfg.BytesLimitPerMinute, cfg.BytesLimitPerHour, cfg.BytesLimitPerDay,
} {
if limit != 0 && largest > limit { // 0 is off
if largest > limit {
t.Errorf("a request of %d bytes breaks the byte limit of %d", largest, limit)
}
}
@@ -540,14 +539,13 @@ func TestCoreRuleSetSettings(t *testing.T) {
environment{
wafMode: config.WAFModeDetect, wafParanoiaLevel: "4", wafAnomalyThreshold: "10",
wafDisabledRules: "942100, 920350", wafExemptPaths: "/api/, /static/",
wafBodyLimit: "32K", exclusionsFile: "/etc/smallwebwaf/crs-exclusions.conf",
wafBodyLimit: "32K",
},
config.Config{
WAFMode: config.WAFModeDetect, WAFParanoiaLevel: 4, WAFAnomalyThreshold: 10,
WAFDisabledRules: []int{942100, 920350},
WAFExemptPaths: []string{"/api/", "/static/"},
WAFBodyLimit: 32 << 10,
CoreRuleSetExclusionsFile: "/etc/smallwebwaf/crs-exclusions.conf",
WAFDisabledRules: []int{942100, 920350},
WAFExemptPaths: []string{"/api/", "/static/"},
WAFBodyLimit: 32 << 10,
},
},
{
@@ -567,8 +565,7 @@ func TestCoreRuleSetSettings(t *testing.T) {
WAFMode: cfg.WAFMode, WAFParanoiaLevel: cfg.WAFParanoiaLevel,
WAFAnomalyThreshold: cfg.WAFAnomalyThreshold,
WAFDisabledRules: cfg.WAFDisabledRules, WAFExemptPaths: cfg.WAFExemptPaths,
WAFBodyLimit: cfg.WAFBodyLimit,
CoreRuleSetExclusionsFile: cfg.CoreRuleSetExclusionsFile,
WAFBodyLimit: cfg.WAFBodyLimit,
}
if !reflect.DeepEqual(got, tc.want) {
t.Errorf("%v gave\n%+v\nwant\n%+v", tc.env, got, tc.want)
@@ -2274,12 +2271,12 @@ func TestLogsEachSettingWithItsValue(t *testing.T) {
rateLimitExemptNets: "",
denyNets: "",
rateLimitPerMinute: "45",
rateLimitPerHour: "1500",
rateLimitPerDay: "6000",
rateLimitPerHour: "20000",
rateLimitPerDay: "300000",
rateLimitExemptPaths: "",
bytesLimitPerMinute: "off",
bytesLimitPerHour: "50G",
bytesLimitPerDay: "100G",
bytesLimitPerMinute: "4G",
bytesLimitPerHour: "20G",
bytesLimitPerDay: "200G",
bytesCount: "both",
lookupSource: defaultLookupSource,
lookupDBPath: "",
@@ -2330,7 +2327,6 @@ func TestLogsEachSettingWithItsValue(t *testing.T) {
wafDisabledRules: defaultWAFDisabledRules,
wafExemptPaths: "",
wafBodyLimit: off,
exclusionsFile: "",
trapPaths: "",
errorBurstThreshold: "30",
logRemoteURL: "",
internal/servewaf/admin.go → internal/proxy/admin.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf
package proxy
import (
"bytes"
internal/servewaf/admin_test.go → internal/proxy/admin_test.go
+22 -22
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"encoding/json"
@@ -10,9 +10,9 @@ import (
"time"
"sneak.berlin/go/smallwebwaf/internal/bans"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/ratelimit"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
"sneak.berlin/go/smallwebwaf/internal/state"
)
@@ -88,11 +88,11 @@ func TestAdminEndpointsNeedTheAdminToken(t *testing.T) {
// Any other request under /_smallwebwaf/ is not found.
for _, e := range []adminEndpoint{
{http.MethodPut, servewaf.BansPath, banOtherClient},
{http.MethodDelete, servewaf.BansPath, ""},
{http.MethodGet, servewaf.BansPath + "/" + otherClient, ""},
{http.MethodPost, servewaf.ClientsPath + otherClient, ""},
{http.MethodGet, strings.TrimSuffix(servewaf.ClientsPath, "/"), ""},
{http.MethodPut, proxy.BansPath, banOtherClient},
{http.MethodDelete, proxy.BansPath, ""},
{http.MethodGet, proxy.BansPath + "/" + otherClient, ""},
{http.MethodPost, proxy.ClientsPath + otherClient, ""},
{http.MethodGet, strings.TrimSuffix(proxy.ClientsPath, "/"), ""},
} {
s.admin(e.method, e.path, e.body, http.StatusNotFound)
}
@@ -118,7 +118,7 @@ func TestBanAddedListedAndLiftedThroughTheEndpoints(t *testing.T) {
Reason: "probes for logins",
}
wantBans(t, s.admin(http.MethodPost, servewaf.BansPath, banOtherClient, http.StatusOK),
wantBans(t, s.admin(http.MethodPost, proxy.BansPath, banOtherClient, http.StatusOK),
want)
line := s.get(client, http.StatusForbidden, requestlog.ActionBanned)
@@ -129,7 +129,7 @@ func TestBanAddedListedAndLiftedThroughTheEndpoints(t *testing.T) {
// Its notes count the request it refused.
want.Notes.Requests, want.Notes.Refused = 1, 1
wantBans(t, s.admin(http.MethodGet, servewaf.BansPath, "", http.StatusOK), want)
wantBans(t, s.admin(http.MethodGet, proxy.BansPath, "", http.StatusOK), want)
// Ten minutes on, lifting the bans on client lifts that one, which is
// kept, marked lifted.
@@ -138,13 +138,13 @@ func TestBanAddedListedAndLiftedThroughTheEndpoints(t *testing.T) {
lifted := clk.Now()
want.Lifted = &lifted
wantBans(t, s.admin(http.MethodDelete, servewaf.BansPath+"/"+client, "",
wantBans(t, s.admin(http.MethodDelete, proxy.BansPath+"/"+client, "",
http.StatusOK), want)
s.get(client, http.StatusOK, requestlog.ActionForward)
wantBans(t, s.admin(http.MethodGet, servewaf.BansPath, "", http.StatusOK), want)
wantBans(t, s.admin(http.MethodGet, proxy.BansPath, "", http.StatusOK), want)
// No ban on it is active any more.
s.admin(http.MethodDelete, servewaf.BansPath+"/"+client, "", http.StatusNotFound)
s.admin(http.MethodDelete, proxy.BansPath+"/"+client, "", http.StatusNotFound)
}
func TestBanToAddGivesItsNetblockAndDuration(t *testing.T) {
@@ -181,7 +181,7 @@ func TestBanToAddGivesItsNetblockAndDuration(t *testing.T) {
want.Expires = &expires
}
wantBans(t, s.admin(http.MethodPost, servewaf.BansPath, body, http.StatusOK), want)
wantBans(t, s.admin(http.MethodPost, proxy.BansPath, body, http.StatusOK), want)
}
}
@@ -250,7 +250,7 @@ func TestBanToAddThatCannotBeReadIsRefused(t *testing.T) {
"request body too large",
},
} {
got := s.admin(http.MethodPost, servewaf.BansPath, tc.body, http.StatusBadRequest)
got := s.admin(http.MethodPost, proxy.BansPath, tc.body, http.StatusBadRequest)
if !strings.Contains(string(got.body), tc.want) {
t.Errorf("%.80s was answered %q, want it to say %q", tc.body, got.body, tc.want)
}
@@ -283,7 +283,7 @@ func TestClientEndpointShowsTheClientAndItsBans(t *testing.T) {
Bans []state.BanEntry `json:"bans"`
}
decode(t, s.admin(http.MethodGet, servewaf.ClientsPath+addr, "", http.StatusOK), &got)
decode(t, s.admin(http.MethodGet, proxy.ClientsPath+addr, "", http.StatusOK), &got)
if got.Client == nil {
t.Fatalf("%s: no client", addr)
@@ -305,13 +305,13 @@ func TestClientEndpointShowsTheClientAndItsBans(t *testing.T) {
// Of an address no request came from and no ban covers, nothing is
// known.
got := s.admin(http.MethodGet, servewaf.ClientsPath+"198.51.100.99", "", http.StatusOK)
got := s.admin(http.MethodGet, proxy.ClientsPath+"198.51.100.99", "", http.StatusOK)
if string(got.body) != "{\n \"client\": null,\n \"bans\": []\n}\n" {
t.Errorf("an unknown client is answered\n%s", got.body)
}
s.admin(http.MethodGet, servewaf.ClientsPath+"203.0.113", "", http.StatusBadRequest)
s.admin(http.MethodDelete, servewaf.BansPath+"/203.0.113.0/24", "",
s.admin(http.MethodGet, proxy.ClientsPath+"203.0.113", "", http.StatusBadRequest)
s.admin(http.MethodDelete, proxy.BansPath+"/203.0.113.0/24", "",
http.StatusBadRequest)
}
@@ -342,10 +342,10 @@ type adminEndpoint struct {
// bans on otherClient, and asking about otherClient.
func adminEndpoints() []adminEndpoint {
return []adminEndpoint{
{http.MethodGet, servewaf.BansPath, ""},
{http.MethodPost, servewaf.BansPath, banOtherClient},
{http.MethodDelete, servewaf.BansPath + "/" + otherClient, ""},
{http.MethodGet, servewaf.ClientsPath + otherClient, ""},
{http.MethodGet, proxy.BansPath, ""},
{http.MethodPost, proxy.BansPath, banOtherClient},
{http.MethodDelete, proxy.BansPath + "/" + otherClient, ""},
{http.MethodGet, proxy.ClientsPath + otherClient, ""},
}
}
internal/servewaf/alerts_test.go → internal/proxy/alerts_test.go
+4 -4
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"maps"
@@ -10,8 +10,8 @@ import (
"sneak.berlin/go/smallwebwaf/internal/alerts"
"sneak.berlin/go/smallwebwaf/internal/bans"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
const (
@@ -201,7 +201,7 @@ func TestObserveModeWorksOutABanOnlyWhenItsAlertWouldBeSent(t *testing.T) {
// never sent them, and returns the queue they wait in as well.
func startWithAlerts(
t *testing.T, env map[string]string,
) (*sender, *clock, *servewaf.Server, *alerts.Queue) {
) (*sender, *clock, *proxy.Server, *alerts.Queue) {
t.Helper()
return startAppWithAlerts(t, func(http.ResponseWriter, *http.Request) {}, env)
@@ -210,7 +210,7 @@ func startWithAlerts(
// startAppWithAlerts is startWithAlerts in front of the app handler.
func startAppWithAlerts(
t *testing.T, handler http.HandlerFunc, env map[string]string,
) (*sender, *clock, *servewaf.Server, *alerts.Queue) {
) (*sender, *clock, *proxy.Server, *alerts.Queue) {
t.Helper()
app := startApp(t, handler)
internal/servewaf/anomaly_internal_test.go → internal/proxy/anomaly_internal_test.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf
package proxy
import (
"net/netip"
internal/servewaf/anomaly_test.go → internal/proxy/anomaly_test.go
+3 -3
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"maps"
@@ -13,9 +13,9 @@ import (
"sneak.berlin/go/smallwebwaf/internal/alerts"
"sneak.berlin/go/smallwebwaf/internal/anomaly"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/ratelimit"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
// The anomaly thresholds: the prefix of a scope followed by the end of a
@@ -319,7 +319,7 @@ func TestRequestCountsForTheASNumberGeoJSGivesBeforeItEnds(t *testing.T) {
// kept.
geojsURL, _, release := startHeldGeoJS(t)
var server atomic.Pointer[servewaf.Server]
var server atomic.Pointer[proxy.Server]
app := startApp(t, func(http.ResponseWriter, *http.Request) {
release()
internal/servewaf/answertime_test.go → internal/proxy/answertime_test.go
+27 -29
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"fmt"
@@ -16,10 +16,10 @@ import (
"sneak.berlin/go/smallwebwaf/internal/bans"
"sneak.berlin/go/smallwebwaf/internal/lookup"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/ratelimit"
"sneak.berlin/go/smallwebwaf/internal/reputation"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
const (
@@ -81,7 +81,7 @@ func TestSixteenThousandCookiesAreRefusedWellWithinTheTimeLimit(t *testing.T) {
t.Errorf("answered after %s, want well within %s", took, answerTimeLimit)
}
wantDisposition(t, got, tooLarge, servewaf.DispositionDeny)
wantDisposition(t, got, tooLarge, proxy.DispositionDeny)
line := s.out.requestLine(t)
wantLine(t, line, tooLarge, requestlog.ActionTooLarge)
@@ -144,13 +144,13 @@ func TestEachHeaderLimitRefusesARequestOverIt(t *testing.T) {
line := s.out.requestLine(t)
if tc.refused {
wantDisposition(t, got, tooLarge, servewaf.DispositionDeny)
wantDisposition(t, got, tooLarge, proxy.DispositionDeny)
wantLine(t, line, tooLarge, requestlog.ActionTooLarge)
return
}
wantDisposition(t, got, http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, got, http.StatusOK, proxy.DispositionAllow)
wantLine(t, line, http.StatusOK, requestlog.ActionForward)
if line.DurationWAF == nil {
@@ -175,7 +175,7 @@ func TestHeaderLimitsHoldWhateverTheCoreRuleSetSettingsSay(t *testing.T) {
req := s.question(siteA, client, "/")
req.Header.Set(cookieHeader, cookies(cookieLimit+1))
wantDisposition(t, do(t, req), tooLarge, servewaf.DispositionDeny)
wantDisposition(t, do(t, req), tooLarge, proxy.DispositionDeny)
})
}
}
@@ -187,7 +187,7 @@ func TestClientInTheAllowNetsSkipsTheHeaderLimits(t *testing.T) {
req := s.question(siteA, client, "/")
req.Header.Set(cookieHeader, cookies(cookieLimit+1))
wantDisposition(t, do(t, req), http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, do(t, req), http.StatusOK, proxy.DispositionAllow)
}
func TestObserveModeAllowsARequestOverTheHeaderLimitsUnread(t *testing.T) {
@@ -204,7 +204,7 @@ func TestObserveModeAllowsARequestOverTheHeaderLimitsUnread(t *testing.T) {
t.Errorf("answered after %s, want well within %s", took, answerTimeLimit)
}
wantDisposition(t, got, http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, got, http.StatusOK, proxy.DispositionAllow)
line := s.out.requestLine(t)
if line.WouldAction != requestlog.ActionTooLarge || line.DurationWAF != nil {
@@ -224,8 +224,8 @@ func TestRequestsOverTheHeaderLimitsCountTowardTheRateLimits(t *testing.T) {
return do(t, req)
}
wantDisposition(t, ask(), tooLarge, servewaf.DispositionDeny)
wantDisposition(t, ask(), http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, ask(), tooLarge, proxy.DispositionDeny)
wantDisposition(t, ask(), http.StatusForbidden, proxy.DispositionDeny)
lines := s.out.requestLines(t, 2)
wantLine(t, lines[1], http.StatusForbidden, requestlog.ActionRateLimited)
@@ -249,7 +249,7 @@ func TestTheHeaderLimitsComeAfterTheTrapPathsAndTheRuleFiles(t *testing.T) {
req := s.question(siteA, client, tc.path)
req.Header.Set(cookieHeader, cookies(cookieLimit+1))
wantDisposition(t, do(t, req), http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, do(t, req), http.StatusForbidden, proxy.DispositionDeny)
wantLine(t, s.out.requestLine(t), http.StatusForbidden, tc.action)
})
}
@@ -265,7 +265,7 @@ func TestNotWaitingForGeoJSNeverLowersAClientsLimit(t *testing.T) {
req := s.question(siteA, fromDE, "/")
req.Header.Set(cookieHeader, cookies(cookieLimit+1))
wantDisposition(t, do(t, req), tooLarge, servewaf.DispositionDeny)
wantDisposition(t, do(t, req), tooLarge, proxy.DispositionDeny)
line := s.out.requestLine(t)
wantLine(t, line, tooLarge, requestlog.ActionTooLarge)
@@ -275,7 +275,7 @@ func TestNotWaitingForGeoJSNeverLowersAClientsLimit(t *testing.T) {
}
// The client is under no ban, and GeoJS places it in a country.
wantDisposition(t, s.ask(fromDE, "/"), http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, s.ask(fromDE, "/"), http.StatusOK, proxy.DispositionAllow)
}
func TestAClientGeoJSPlacedInNoCountryCountsAsUnknownWithoutWaiting(t *testing.T) {
@@ -291,7 +291,7 @@ func TestAClientGeoJSPlacedInNoCountryCountsAsUnknownWithoutWaiting(t *testing.T
req := s.question(siteA, client, "/")
req.Header.Set(cookieHeader, cookies(cookieLimit+1))
wantDisposition(t, do(t, req), http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, do(t, req), http.StatusForbidden, proxy.DispositionDeny)
wantLine(t, s.out.requestLine(t), http.StatusForbidden, requestlog.ActionRateLimited)
}
@@ -306,7 +306,7 @@ func TestObserveModeWaitsForGeoJSForARequestOverTheHeaderLimits(t *testing.T) {
req.Header.Set(cookieHeader, cookies(cookieLimit+1))
got := do(t, req)
wantDisposition(t, got, http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, got, http.StatusOK, proxy.DispositionAllow)
asn, country := got.header.Get("X-Client-Asn"), got.header.Get("X-Client-Country")
if asn != asnDE || country != "DE" {
@@ -318,9 +318,7 @@ func TestObserveModeWaitsForGeoJSForARequestOverTheHeaderLimits(t *testing.T) {
// newServeWAFInBubble makes a servewaf for a synctest bubble: GeoJS never
// answers, a setting needs its answer, and everything is at its default but
// for env. No request to it may use the network.
func newServeWAFInBubble(
t *testing.T, env map[string]string,
) (*servewaf.Server, *output) {
func newServeWAFInBubble(t *testing.T, env map[string]string) (*proxy.Server, *output) {
t.Helper()
settings := map[string]string{deniedCountries: "KP"}
@@ -334,13 +332,13 @@ func newServeWAFInBubble(
// askDirectly hands a question about a request from client straight to server,
// as change leaves it, and returns the answer's status and how long it took.
func askDirectly(
t *testing.T, server *servewaf.Server, change func(*http.Request),
t *testing.T, server *proxy.Server, change func(*http.Request),
) (int, time.Duration) {
t.Helper()
req := httptest.NewRequestWithContext(t.Context(), http.MethodGet, "/", http.NoBody)
req.RemoteAddr = net.JoinHostPort(rproxyPeer, "1234")
req.Header.Set(servewaf.ClientHeader, client)
req.Header.Set(proxy.ClientHeader, client)
req.Header.Set(requestIDHeader, "the-id")
change(req)
@@ -353,17 +351,17 @@ func askDirectly(
}
// banClient bans client at now.
func banClient(_ *testing.T, server *servewaf.Server, now time.Time) {
func banClient(_ *testing.T, server *proxy.Server, now time.Time) {
server.Ledger.BanForLimit(netip.MustParsePrefix(client+"/32"), now, bans.Notes{})
}
// countClient counts one request from client at now for the rate limits.
func countClient(_ *testing.T, server *servewaf.Server, now time.Time) {
func countClient(_ *testing.T, server *proxy.Server, now time.Time) {
server.Limiter.Count(netip.MustParsePrefix(client+"/32"), now, wholeLimit)
}
// listClient puts client on the blocklist at dropURL.
func listClient(t *testing.T, server *servewaf.Server, now time.Time) {
func listClient(t *testing.T, server *proxy.Server, now time.Time) {
t.Helper()
err := server.Lists.Load([]reputation.List{{
@@ -375,13 +373,13 @@ func listClient(t *testing.T, server *servewaf.Server, now time.Time) {
}
// decideOnClient puts client on the CrowdSec decision list.
func decideOnClient(t *testing.T, server *servewaf.Server, now time.Time) {
func decideOnClient(t *testing.T, server *proxy.Server, now time.Time) {
t.Helper()
loadDecisions(t, server, now, clientsDecision)
}
// leaveAsItIs prepares nothing.
func leaveAsItIs(*testing.T, *servewaf.Server, time.Time) {}
func leaveAsItIs(*testing.T, *proxy.Server, time.Time) {}
func TestARefusedRequestDoesNotWaitForASlowGeoJS(t *testing.T) {
t.Parallel()
@@ -392,7 +390,7 @@ func TestARefusedRequestDoesNotWaitForASlowGeoJS(t *testing.T) {
name string
env map[string]string
// prepare gets the server ready, at now, before the question.
prepare func(t *testing.T, server *servewaf.Server, now time.Time)
prepare func(t *testing.T, server *proxy.Server, now time.Time)
// cookie is the request's Cookie header.
cookie string
status int
@@ -463,7 +461,7 @@ func TestAQuestionWaitsForASlowGeoJSOnlyAsLongAsTheDefaultSays(t *testing.T) {
name string
env map[string]string
// prepare gets the server ready, at now, before the question.
prepare func(t *testing.T, server *servewaf.Server, now time.Time)
prepare func(t *testing.T, server *proxy.Server, now time.Time)
status int
action string
}{
@@ -521,10 +519,10 @@ func TestServeWAFAnswersWithinTheTimeLimitWhileEveryOutsideSourceHangs(t *testin
t.Cleanup(func() { _ = resolver.Close() })
server, out, _ := newServeWAFWith(t, func(params servewaf.Params) *servewaf.Server {
server, out, _ := newServeWAFWith(t, func(params proxy.Params) *proxy.Server {
params.AbuseIPDBURL = silentAbuseIPDBURL
return servewaf.New(params)
return proxy.NewServeWAF(params)
}, held, time.Now, map[string]string{
deniedCountries: "KP", wafMode: block,
dnsblZones: dnsblZone, dnsblResolver: resolver.LocalAddr().String(),
internal/servewaf/bans.go → internal/proxy/bans.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf
package proxy
import (
"net/http"
internal/servewaf/bans_test.go → internal/proxy/bans_test.go
+3 -3
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"bufio"
@@ -15,8 +15,8 @@ import (
"time"
"sneak.berlin/go/smallwebwaf/internal/bans"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
const (
@@ -382,7 +382,7 @@ func (c *clock) advance(d time.Duration) {
// window.
func startWithClock(
t *testing.T, geojsURL string, env map[string]string,
) (*sender, *clock, *servewaf.Server) {
) (*sender, *clock, *proxy.Server) {
t.Helper()
app := startApp(t, func(http.ResponseWriter, *http.Request) {})
internal/servewaf/biased.go → internal/proxy/biased.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf
package proxy
import (
"sneak.berlin/go/smallwebwaf/internal/config"
internal/servewaf/biased_test.go → internal/proxy/biased_test.go
+6 -6
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"fmt"
@@ -16,8 +16,8 @@ import (
"sneak.berlin/go/smallwebwaf/internal/alerts"
"sneak.berlin/go/smallwebwaf/internal/bans"
"sneak.berlin/go/smallwebwaf/internal/lookup/lookuptest"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
// The biased thresholds.
@@ -419,7 +419,7 @@ func TestBanForALoweredLimitGivesThePercentageInItsNotesAndItsAlert(t *testing.T
// clock.
func startWithLookups(
t *testing.T, env map[string]string,
) (*sender, *servewaf.Server, *alerts.Queue) {
) (*sender, *proxy.Server, *alerts.Queue) {
t.Helper()
s, _, server, queue := startWithLookupsAndClock(t, env)
@@ -434,7 +434,7 @@ func startWithLookups(
// country, and no other address.
func startWithLookupsAndClock(
t *testing.T, env map[string]string,
) (*sender, *clock, *servewaf.Server, *alerts.Queue) {
) (*sender, *clock, *proxy.Server, *alerts.Queue) {
t.Helper()
path := filepath.Join(t.TempDir(), "ipinfo_lite.mmdb")
@@ -463,11 +463,11 @@ func (s *sender) uploadFrom(from string) logLine {
// serveFromDE hands a question about a request from fromDE with method and body
// straight to server's handler, without the network, and returns once it is
// answered.
func serveFromDE(t *testing.T, server *servewaf.Server, method string, body io.Reader) {
func serveFromDE(t *testing.T, server *proxy.Server, method string, body io.Reader) {
t.Helper()
req := httptest.NewRequestWithContext(t.Context(), method, "/", body)
req.Header.Set(servewaf.ClientHeader, fromDE)
req.Header.Set(proxy.ClientHeader, fromDE)
req.Header.Set(requestIDHeader, "the-id")
server.Handler.ServeHTTP(httptest.NewRecorder(), req)
internal/servewaf/bytelimits_test.go → internal/proxy/bytelimits_test.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"bufio"
internal/servewaf/client.go → internal/proxy/client.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf
package proxy
import (
"crypto/rand"
internal/servewaf/coreruleset.go → internal/proxy/coreruleset.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf
package proxy
import (
"time"
internal/servewaf/coreruleset_test.go → internal/proxy/coreruleset_test.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"io"
internal/servewaf/countries.go → internal/proxy/countries.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf
package proxy
import (
"slices"
internal/servewaf/countries_test.go → internal/proxy/countries_test.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"encoding/json"
internal/servewaf/crowdsec_test.go → internal/proxy/crowdsec_test.go
+3 -3
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"net/http"
@@ -9,9 +9,9 @@ import (
"sneak.berlin/go/smallwebwaf/internal/alerts"
"sneak.berlin/go/smallwebwaf/internal/bans"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/reputation"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
// The CrowdSec settings, and the tests' engine, which is never asked: each
@@ -168,7 +168,7 @@ func TestObserveModeForwardsAClientTheCrowdSecDecisionListListsAndAlertsTheBan(
// decisionsURL, answer, the engine's answer, fetched at fetched, as
// reputation.json would at start.
func loadDecisions(
t *testing.T, server *servewaf.Server, fetched time.Time, answer string,
t *testing.T, server *proxy.Server, fetched time.Time, answer string,
) {
t.Helper()
internal/servewaf/errorburst_test.go → internal/proxy/errorburst_test.go
+3 -3
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"maps"
@@ -10,9 +10,9 @@ import (
"sneak.berlin/go/smallwebwaf/internal/alerts"
"sneak.berlin/go/smallwebwaf/internal/bans"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/ratelimit"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
const errorBurstThreshold = "SWWAF_ERROR_BURST_THRESHOLD"
@@ -51,7 +51,7 @@ func (r refused) send(s *sender, from string) logLine {
// SWWAF_ERROR_BURST_THRESHOLD at threshold, and the settings in env.
func startForErrorBurst(
t *testing.T, threshold string, env map[string]string,
) (*sender, *clock, *servewaf.Server) {
) (*sender, *clock, *proxy.Server) {
t.Helper()
settings := map[string]string{
internal/servewaf/health_test.go → internal/proxy/health_test.go
+3 -3
View File
@@ -1,11 +1,11 @@
package servewaf_test
package proxy_test
import (
"net/http"
"testing"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
func TestHealthEndpointCountsTowardNoLimit(t *testing.T) {
@@ -21,7 +21,7 @@ func TestHealthEndpointCountsTowardNoLimit(t *testing.T) {
)
for range healthChecks {
got := s.adminRequest("", http.MethodGet, servewaf.HealthPath, "", http.StatusOK)
got := s.adminRequest("", http.MethodGet, proxy.HealthPath, "", http.StatusOK)
if string(got.body) != "ok\n" || got.header.Get("Content-Type") != contentType {
t.Errorf("health endpoint answered %q with Content-Type %q, want ok "+
internal/servewaf/history_test.go → internal/proxy/history_test.go
+5 -5
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"io"
@@ -8,9 +8,9 @@ import (
"testing"
"time"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/ratelimit"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
func TestHistoryKeepsEachRequestOfTheClient(t *testing.T) {
@@ -100,8 +100,8 @@ func TestOwnEndpointsAreNotInTheHistory(t *testing.T) {
s, _, server := startWithClock(t, "", map[string]string{metricsToken: token})
s.adminRequest("", http.MethodGet, servewaf.HealthPath, "", http.StatusOK)
s.adminRequest("", http.MethodGet, servewaf.MetricsPath, "", http.StatusUnauthorized)
s.adminRequest("", http.MethodGet, proxy.HealthPath, "", http.StatusOK)
s.adminRequest("", http.MethodGet, proxy.MetricsPath, "", http.StatusUnauthorized)
s.scrape()
if clients := server.Limiter.Snapshot(); len(clients) != 0 {
@@ -126,7 +126,7 @@ func TestPathUnderTheOwnPrefixIsNeitherForwardedNorRefused(t *testing.T) {
}
// historyOf returns the history of the client at addr.
func historyOf(t *testing.T, server *servewaf.Server, addr string) ratelimit.History {
func historyOf(t *testing.T, server *proxy.Server, addr string) ratelimit.History {
t.Helper()
client := netip.MustParsePrefix(addr + "/32")
internal/servewaf/lookup.go → internal/proxy/lookup.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf
package proxy
import (
"context"
internal/servewaf/lookup_test.go → internal/proxy/lookup_test.go
+2 -2
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"net/http"
@@ -379,7 +379,7 @@ func TestRequestWaitsAsLongAsTheLookupTimeoutSays(t *testing.T) {
// clock of the test's own: the wait lasts exactly as long as it should,
// however slowly the test process runs. Nothing in it may wait on the
// network, which would keep that clock from moving on: the request is
// handed to servewaf's handler, and GeoJS is one that never answers.
// handed to the proxy's handler, and GeoJS is one that never answers.
synctest.Test(t, func(t *testing.T) {
// Not the default. The exclusive list needs the answer, and the app
// is never reached.
internal/servewaf/metrics_test.go → internal/proxy/metrics_test.go
+14 -14
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"io"
@@ -12,8 +12,8 @@ import (
"sneak.berlin/go/smallwebwaf/internal/bans"
"sneak.berlin/go/smallwebwaf/internal/lookup"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
const (
@@ -32,7 +32,7 @@ func TestMetricsAreOffWhileTheTokenIsUnset(t *testing.T) {
// An empty token does not match the unset one either.
for _, authorization := range []string{bearer, "Bearer ", ""} {
s.adminRequest(authorization, http.MethodGet, servewaf.MetricsPath, "",
s.adminRequest(authorization, http.MethodGet, proxy.MetricsPath, "",
http.StatusNotFound)
}
}
@@ -46,18 +46,18 @@ func TestMetricsNeedTheTokenAndOtherPathsAreNotFound(t *testing.T) {
method, path, authorization string
status int
}{
{http.MethodGet, servewaf.MetricsPath, "", http.StatusUnauthorized},
{http.MethodGet, proxy.MetricsPath, "", http.StatusUnauthorized},
{
http.MethodGet, servewaf.MetricsPath, "Bearer " + strings.ToUpper(token),
http.MethodGet, proxy.MetricsPath, "Bearer " + strings.ToUpper(token),
http.StatusUnauthorized,
},
{http.MethodGet, servewaf.MetricsPath, "Basic " + token, http.StatusUnauthorized},
{http.MethodGet, servewaf.MetricsPath, bearer, http.StatusOK},
{http.MethodGet, servewaf.MetricsPath, "bearer " + token, http.StatusOK},
{http.MethodPost, servewaf.MetricsPath, bearer, http.StatusNotFound},
{http.MethodGet, servewaf.MetricsPath + "/", bearer, http.StatusNotFound},
{http.MethodGet, proxy.MetricsPath, "Basic " + token, http.StatusUnauthorized},
{http.MethodGet, proxy.MetricsPath, bearer, http.StatusOK},
{http.MethodGet, proxy.MetricsPath, "bearer " + token, http.StatusOK},
{http.MethodPost, proxy.MetricsPath, bearer, http.StatusNotFound},
{http.MethodGet, proxy.MetricsPath + "/", bearer, http.StatusNotFound},
{http.MethodGet, "/_smallwebwaf/bans", bearer, http.StatusNotFound},
{http.MethodPost, servewaf.HealthPath, "", http.StatusNotFound},
{http.MethodPost, proxy.HealthPath, "", http.StatusNotFound},
} {
got := s.adminRequest(tc.authorization, tc.method, tc.path, "", tc.status)
@@ -180,7 +180,7 @@ func TestMetricsCountTheBansAnAdminMakes(t *testing.T) {
wantMetric(t, s.scrape(), admins, 1)
// And a ban made through the endpoint.
s.admin(http.MethodPost, servewaf.BansPath, banOtherClient, http.StatusOK)
s.admin(http.MethodPost, proxy.BansPath, banOtherClient, http.StatusOK)
wantMetric(t, s.scrape(), admins, 2)
}
@@ -365,7 +365,7 @@ func keptAnswer(addr, country string) lookup.Answer {
func scrape(t *testing.T, addr string) string {
t.Helper()
req := newRequest(t, http.MethodGet, addr, servewaf.MetricsPath, http.NoBody)
req := newRequest(t, http.MethodGet, addr, proxy.MetricsPath, http.NoBody)
req.Header.Set("Authorization", bearer)
got := do(t, req)
@@ -380,7 +380,7 @@ func scrape(t *testing.T, addr string) string {
func (s *sender) scrape() string {
s.t.Helper()
return string(s.adminRequest(bearer, http.MethodGet, servewaf.MetricsPath, "",
return string(s.adminRequest(bearer, http.MethodGet, proxy.MetricsPath, "",
http.StatusOK).body)
}
internal/servewaf/observe_test.go → internal/proxy/observe_test.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"net/http"
internal/servewaf/proxy.go → internal/proxy/proxy.go
+21 -22
View File
@@ -1,10 +1,12 @@
// Package servewaf is the server the servewaf command runs. It answers rproxy's
// questions, takes rproxy's reports and answers its own endpoints, and writes a
// log line for each.
package servewaf
// Package proxy is servewaf's server. It runs the checks on the request each of
// rproxy's questions carries, and answers rproxy what to do with that request. It
// takes rproxy's report once the visitor's answer has ended, which counts the
// request's bytes and writes its last log line. It answers servewaf's own
// endpoints: the health check, the metrics, the bans and the clients. It passes
// nothing to an app: internal/rproxy does that.
package proxy
import (
"fmt"
"io"
"log/slog"
"net/http"
@@ -44,7 +46,7 @@ const BansPath = "/_smallwebwaf/bans"
// client's address after it, with SWWAF_ADMIN_TOKEN.
const ClientsPath = "/_smallwebwaf/clients/"
// Params are what New needs.
// Params are what NewServeWAF needs.
type Params struct {
Config *config.Config
// RequestLog receives two JSON lines per question, one at its decision and
@@ -61,9 +63,6 @@ type Params struct {
// LookupFile is the lookup database they are looked up in while
// SWWAF_LOOKUP_SOURCE is file, and nil otherwise.
LookupFile *lookup.File
// CoreRuleSet is what NewCoreRuleSet returns: what inspects requests
// while SWWAF_WAF_MODE is not off, and nil while it is.
CoreRuleSet *waf.CoreRuleSet
// Now tells the time by which requests are counted for the rate
// limits, bans are made and run out, and GeoJS's answers are kept,
// normally time.Now in UTC, the time the state files give.
@@ -148,7 +147,7 @@ func newHandler(params Params) *handler {
dnsbl: dnsbl,
abuseIPDB: abuseIPDB,
rules: params.Rules,
coreRuleSet: params.CoreRuleSet,
coreRuleSet: newCoreRuleSet(params.Config),
alerts: params.Alerts,
}
h.geojs = lookup.New(lookup.Params{
@@ -206,29 +205,29 @@ func newReputation(
return lists, dnsbl, abuseIPDB
}
// NewCoreRuleSet returns the Core Rule Set at SWWAF_WAF_PARANOIA_LEVEL,
// newCoreRuleSet returns the Core Rule Set at SWWAF_WAF_PARANOIA_LEVEL,
// without the rules SWWAF_WAF_DISABLED_RULES switches off, reading bodies
// up to SWWAF_WAF_BODY_LIMIT, with the exclusions in
// SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE, or nil while SWWAF_WAF_MODE is off. It
// reads at most QuestionBodyMaxBytes less one byte: a question's body of
// up to SWWAF_WAF_BODY_LIMIT, or nil while SWWAF_WAF_MODE is off. It reads at
// most QuestionBodyMaxBytes less one byte: a question's body of
// QuestionBodyMaxBytes may be cut short, and the Core Rule Set does not read a
// JSON or XML body over its limit. An exclusions file that cannot be read, does
// not parse or names an id of smallwebwaf's own rules is an error.
func NewCoreRuleSet(cfg *config.Config) (*waf.CoreRuleSet, error) {
// JSON or XML body over its limit.
func newCoreRuleSet(cfg *config.Config) *waf.CoreRuleSet {
if cfg.WAFMode == config.WAFModeOff {
return nil, nil //nolint:nilnil // off is no Core Rule Set, and no error
return nil
}
coreRuleSet, err := waf.New(waf.Params{
ParanoiaLevel: cfg.WAFParanoiaLevel, DisabledRules: cfg.WAFDisabledRules,
BodyLimit: min(cfg.WAFBodyLimit, QuestionBodyMaxBytes-1),
ExclusionsFile: cfg.CoreRuleSetExclusionsFile,
BodyLimit: min(cfg.WAFBodyLimit, QuestionBodyMaxBytes-1),
})
if err != nil {
return nil, fmt.Errorf("SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE: %w", err)
// The Core Rule Set is built in, and the settings cannot break it:
// the paranoia level is from 1 to 4, and the id of no rule switches
// nothing off.
panic(err)
}
return coreRuleSet, nil
return coreRuleSet
}
// handler is servewaf's handler. It holds what every request shares; what
internal/servewaf/proxy_test.go → internal/proxy/proxy_test.go
+10 -16
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"bufio"
@@ -18,10 +18,10 @@ import (
"sneak.berlin/go/smallwebwaf/internal/alerts"
"sneak.berlin/go/smallwebwaf/internal/config"
"sneak.berlin/go/smallwebwaf/internal/lookup"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/rproxy"
"sneak.berlin/go/smallwebwaf/internal/rules"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
const (
@@ -300,7 +300,7 @@ func startProxyWithGeoJS(
func startProxyWithClock(
t *testing.T, appURL, geojsURL string, now func() time.Time,
env map[string]string,
) (string, *output, *servewaf.Server) {
) (string, *output, *proxy.Server) {
t.Helper()
addr, out, server, _ := startProxyWithAlerts(t, appURL, geojsURL, now, env)
@@ -313,7 +313,7 @@ func startProxyWithClock(
func startProxyWithAlerts(
t *testing.T, appURL, geojsURL string, now func() time.Time,
env map[string]string,
) (string, *output, *servewaf.Server, *alerts.Queue) {
) (string, *output, *proxy.Server, *alerts.Queue) {
t.Helper()
server, out, alertQueue := newServeWAF(t, geojsURL, now, env)
@@ -324,7 +324,7 @@ func startProxyWithAlerts(
// serve serves server on a port of its own until the test ends, and sets its
// Addr to where it listens.
func serve(t *testing.T, server *servewaf.Server) {
func serve(t *testing.T, server *proxy.Server) {
t.Helper()
listener, err := (&net.ListenConfig{}).Listen(t.Context(), "tcp", localhost+":0")
@@ -401,17 +401,17 @@ func startRProxy(
// inspected by it.
func newServeWAF(
t *testing.T, geojsURL string, now func() time.Time, env map[string]string,
) (*servewaf.Server, *output, *alerts.Queue) {
) (*proxy.Server, *output, *alerts.Queue) {
t.Helper()
return newServeWAFWith(t, servewaf.New, geojsURL, now, env)
return newServeWAFWith(t, proxy.NewServeWAF, geojsURL, now, env)
}
// newServeWAFWith is newServeWAF for the server build makes.
func newServeWAFWith(
t *testing.T, build func(servewaf.Params) *servewaf.Server,
t *testing.T, build func(proxy.Params) *proxy.Server,
geojsURL string, now func() time.Time, env map[string]string,
) (*servewaf.Server, *output, *alerts.Queue) {
) (*proxy.Server, *output, *alerts.Queue) {
t.Helper()
settings := map[string]string{
@@ -463,19 +463,13 @@ func newServeWAFWith(
}
}
coreRuleSet, err := servewaf.NewCoreRuleSet(cfg)
if err != nil {
t.Fatalf("Core Rule Set: %v", err)
}
server := build(servewaf.Params{
server := build(proxy.Params{
Config: cfg,
RequestLog: out,
ProcessLog: processLog,
GeoJSURL: geojsURL,
AbuseIPDBURL: abuseIPDBURL,
LookupFile: lookupFile,
CoreRuleSet: coreRuleSet,
Now: now,
Rules: ruleFiles,
Alerts: alertQueue,
internal/servewaf/ratelimits_test.go → internal/proxy/ratelimits_test.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"net/http"
internal/servewaf/reputation.go → internal/proxy/reputation.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf
package proxy
import (
"context"
internal/servewaf/reputation_test.go → internal/proxy/reputation_test.go
+7 -7
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"fmt"
@@ -15,10 +15,10 @@ import (
"sneak.berlin/go/smallwebwaf/internal/alerts"
"sneak.berlin/go/smallwebwaf/internal/bans"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/ratelimit"
"sneak.berlin/go/smallwebwaf/internal/reputation"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
// The reputation settings.
@@ -617,7 +617,7 @@ const (
// AbuseIPDB.
const abuseipdb = reputation.AbuseIPDBSource
// abuseIPDBURL is where newServeWAF has clients checked with AbuseIPDB: at
// abuseIPDBURL is where newProxy has clients checked with AbuseIPDB: at
// abuseIPDBStandIn, which TestMain registers with Go's default transport,
// through which AbuseIPDB is asked.
const abuseIPDBURL = "abuseipdb://stand-in/api/v2/check"
@@ -975,7 +975,7 @@ func verdictsFetched() time.Time {
// verdictsFetched, as reputation.json would at start: one that lists the
// client from each zone listedBy gives for it, and one that does not from
// each other zone.
func loadVerdicts(server *servewaf.Server, listedBy map[string][]string) {
func loadVerdicts(server *proxy.Server, listedBy map[string][]string) {
verdicts := make([]reputation.Verdict, 0, len(listedBy)*len(server.DNSBL.Zones()))
for client, zones := range listedBy {
@@ -993,7 +993,7 @@ func loadVerdicts(server *servewaf.Server, listedBy map[string][]string) {
// loadScores puts into server's AbuseIPDB the score scores gives each
// client, an IPv4 address, fetched at verdictsFetched, as reputation.json
// would at start.
func loadScores(server *servewaf.Server, scores map[string]int64) {
func loadScores(server *proxy.Server, scores map[string]int64) {
kept := make([]reputation.Score, 0, len(scores))
for client, score := range scores {
kept = append(kept, reputation.Score{
@@ -1007,7 +1007,7 @@ func loadScores(server *servewaf.Server, scores map[string]int64) {
// wantAbuseIPDBChecks checks how many clients server has checked with
// AbuseIPDB.
func wantAbuseIPDBChecks(t *testing.T, server *servewaf.Server, want int) {
func wantAbuseIPDBChecks(t *testing.T, server *proxy.Server, want int) {
t.Helper()
if got := server.AbuseIPDB.Checked(); got != want {
@@ -1017,7 +1017,7 @@ func wantAbuseIPDBChecks(t *testing.T, server *servewaf.Server, want int) {
// loadLists puts copies of lists into server's lists, by URL, each with
// its lines, fetched at listsFetched, as reputation.json would at start.
func loadLists(t *testing.T, server *servewaf.Server, copies map[string][]string) {
func loadLists(t *testing.T, server *proxy.Server, copies map[string][]string) {
t.Helper()
lists := make([]reputation.List, 0, len(copies))
internal/servewaf/request.go → internal/proxy/request.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf
package proxy
import (
"context"
internal/servewaf/requestlog_test.go → internal/proxy/requestlog_test.go
+3 -3
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"io"
@@ -10,9 +10,9 @@ import (
"testing"
"time"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/ratelimit"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
const (
@@ -220,7 +220,7 @@ func TestTimingsAreInOrder(t *testing.T) {
wantStatus(t, do(t, req), http.StatusForbidden)
refused := out.endedLines(t, 2)[1]
wantStatus(t, get(t, server.Addr, servewaf.HealthPath), http.StatusOK)
wantStatus(t, get(t, server.Addr, proxy.HealthPath), http.StatusOK)
health := out.endedLines(t, 3)[2]
// A request passed to the app has every timing; one refused, none of
internal/servewaf/rulefiles_test.go → internal/proxy/rulefiles_test.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"net/http"
internal/servewaf/rules.go → internal/proxy/rules.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf
package proxy
import (
"slices"
internal/servewaf/servewaf.go → internal/proxy/servewaf.go
+3 -3
View File
@@ -1,4 +1,4 @@
package servewaf
package proxy
import (
"bytes"
@@ -103,13 +103,13 @@ type Report struct {
DurationUpstreamTotal float64 `json:"duration_upstream_total"`
}
// New returns the server `smallwebwaf servewaf` runs. It answers
// NewServeWAF returns the server `smallwebwaf servewaf` runs. It answers
// rproxy's questions, takes rproxy's reports and answers its own endpoints. It
// passes nothing to an app. rproxy applies the size and time limits to the
// visitor. Go's default limit on a request's line and headers, 1 MiB, stays: it
// is far above rproxy's, and a question refused for its size would have rproxy
// let the request through.
func New(params Params) *Server {
func NewServeWAF(params Params) *Server {
h := newHandler(params)
return &Server{
internal/servewaf/servewaf_test.go → internal/proxy/servewaf_test.go
+100 -103
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"context"
@@ -19,9 +19,9 @@ import (
"sneak.berlin/go/smallwebwaf/internal/alerts"
"sneak.berlin/go/smallwebwaf/internal/bans"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/ratelimit"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
const (
@@ -57,7 +57,7 @@ type serveWAF struct {
t *testing.T
addr string
out *output
server *servewaf.Server
server *proxy.Server
clock *clock
queue *alerts.Queue
}
@@ -67,13 +67,13 @@ type serveWAF struct {
func startServeWAF(t *testing.T, geojsURL string, env map[string]string) *serveWAF {
t.Helper()
return startServeWAFWith(t, geojsURL, env, func(*servewaf.Server) {})
return startServeWAFWith(t, geojsURL, env, func(*proxy.Server) {})
}
// startServeWAFWith is startServeWAF with change applied to the server before
// it starts.
func startServeWAFWith(
t *testing.T, geojsURL string, env map[string]string, change func(*servewaf.Server),
t *testing.T, geojsURL string, env map[string]string, change func(*proxy.Server),
) *serveWAF {
t.Helper()
@@ -103,8 +103,8 @@ func (s *serveWAF) questionWith(
req := newRequest(s.t, method, s.addr, path, body)
req.Host = host
req.Header.Set(servewaf.ClientHeader, from)
req.Header.Set(servewaf.PeerHeader, rproxyPeer)
req.Header.Set(proxy.ClientHeader, from)
req.Header.Set(proxy.PeerHeader, rproxyPeer)
req.Header.Set(requestIDHeader, rand.Text())
return req
@@ -131,13 +131,13 @@ func (s *serveWAF) allowed(from string) string {
s.t.Helper()
req := s.question(siteA, from, "/")
wantDisposition(s.t, do(s.t, req), http.StatusOK, servewaf.DispositionAllow)
wantDisposition(s.t, do(s.t, req), http.StatusOK, proxy.DispositionAllow)
return req.Header.Get(requestIDHeader)
}
// report sends rproxy's report and returns the answer.
func (s *serveWAF) report(report servewaf.Report) answer {
func (s *serveWAF) report(report proxy.Report) answer {
s.t.Helper()
body, err := json.Marshal(report)
@@ -152,7 +152,7 @@ func (s *serveWAF) report(report servewaf.Report) answer {
func (s *serveWAF) reportBody(body string) answer {
s.t.Helper()
return do(s.t, newRequest(s.t, http.MethodPost, s.addr, servewaf.ReportPath,
return do(s.t, newRequest(s.t, http.MethodPost, s.addr, proxy.ReportPath,
strings.NewReader(body)))
}
@@ -161,7 +161,7 @@ func (s *serveWAF) reportBody(body string) answer {
func (s *serveWAF) passedOn(from string) {
s.t.Helper()
got := s.report(servewaf.Report{
got := s.report(proxy.Report{
RequestID: s.allowed(from),
Status: http.StatusOK,
RequestBytes: bodyBytes,
@@ -182,7 +182,7 @@ func (s *serveWAF) history() ratelimit.History {
func (s *serveWAF) metrics() string {
s.t.Helper()
req := newRequest(s.t, http.MethodGet, s.addr, servewaf.MetricsPath, http.NoBody)
req := newRequest(s.t, http.MethodGet, s.addr, proxy.MetricsPath, http.NoBody)
req.Header.Set("Authorization", bearer)
got := do(s.t, req)
@@ -196,7 +196,7 @@ func wantDisposition(t *testing.T, got answer, status int, disposition string) {
t.Helper()
wantStatus(t, got, status)
if answered := got.header.Get(servewaf.DispositionHeader); answered != disposition {
if answered := got.header.Get(proxy.DispositionHeader); answered != disposition {
t.Errorf("answered with disposition %q, want %q", answered, disposition)
}
}
@@ -248,10 +248,10 @@ func TestQuestionAllowedIsAnsweredAndLogged(t *testing.T) {
req := s.question(siteA, client, "/page?q=1&token=visible")
req.Header.Set(requestIDHeader, "the-id")
req.Header.Set("X-Forwarded-Proto", "https")
req.Header.Set(servewaf.ContentLengthHeader, "1234")
req.Header.Set(proxy.ContentLengthHeader, "1234")
got := do(t, req)
wantDisposition(t, got, http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, got, http.StatusOK, proxy.DispositionAllow)
wantBody(t, got, "")
if id := got.header.Get(requestIDHeader); id != "" {
@@ -278,7 +278,7 @@ func TestIPv6VisitorIsCountedInItsGroup(t *testing.T) {
s.allowed("2001:db8::1")
got := s.ask("2001:db8::2", "/")
wantDisposition(t, got, http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, got, http.StatusForbidden, proxy.DispositionDeny)
}
func TestIPv4VisitorInIPv6FormIsTheIPv4Client(t *testing.T) {
@@ -287,9 +287,9 @@ func TestIPv4VisitorInIPv6FormIsTheIPv4Client(t *testing.T) {
s := startServeWAF(t, "", map[string]string{denyNets: client})
req := s.question(siteA, "::ffff:"+client, "/")
req.Header.Set(servewaf.PeerHeader, "::ffff:"+rproxyPeer)
req.Header.Set(proxy.PeerHeader, "::ffff:"+rproxyPeer)
wantDisposition(t, do(t, req), http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, do(t, req), http.StatusForbidden, proxy.DispositionDeny)
line := s.out.requestLine(t)
if line.ClientIP != client || line.PeerIP != rproxyPeer {
@@ -305,13 +305,13 @@ func TestMalformedQuestionGets400AndAWarningAndNoLine(t *testing.T) {
change func(*http.Request)
}{
{"client not an address", func(req *http.Request) {
req.Header.Set(servewaf.ClientHeader, "not an address")
req.Header.Set(proxy.ClientHeader, "not an address")
}},
{"client empty", func(req *http.Request) {
req.Header.Set(servewaf.ClientHeader, "")
req.Header.Set(proxy.ClientHeader, "")
}},
{"client address with a zone", func(req *http.Request) {
req.Header.Set(servewaf.ClientHeader, "2001:db8::1%eth0")
req.Header.Set(proxy.ClientHeader, "2001:db8::1%eth0")
}},
{"id absent", func(req *http.Request) {
req.Header.Del(requestIDHeader)
@@ -353,7 +353,7 @@ func TestLongestValidIDIsTaken(t *testing.T) {
req := s.question(siteA, client, "/")
req.Header.Set(requestIDHeader, strings.Repeat("x", 128))
wantDisposition(t, do(t, req), http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, do(t, req), http.StatusOK, proxy.DispositionAllow)
}
func TestQuestionWithABodyOver64KiBGets400(t *testing.T) {
@@ -361,15 +361,15 @@ func TestQuestionWithABodyOver64KiBGets400(t *testing.T) {
s := startServeWAF(t, "", nil)
over := strings.NewReader(strings.Repeat("x", servewaf.QuestionBodyMaxBytes+1))
over := strings.NewReader(strings.Repeat("x", proxy.QuestionBodyMaxBytes+1))
got := do(t, s.questionWith(http.MethodPost, siteA, client, "/", over))
wantDisposition(t, got, http.StatusBadRequest, "")
wantProcessMessages(t, s, "a question is refused", 1)
wantNoRequestLines(t, s)
whole := strings.NewReader(strings.Repeat("x", servewaf.QuestionBodyMaxBytes))
whole := strings.NewReader(strings.Repeat("x", proxy.QuestionBodyMaxBytes))
got = do(t, s.questionWith(http.MethodPost, siteA, client, "/", whole))
wantDisposition(t, got, http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, got, http.StatusOK, proxy.DispositionAllow)
}
func TestQuestionWithAHeldIDIsRefused(t *testing.T) {
@@ -385,15 +385,15 @@ func TestQuestionWithAHeldIDIsRefused(t *testing.T) {
wantProcessMessages(t, s, "a question is refused", 1)
// A denied request's id is held as well.
denied := s.question(siteA, otherClient, servewaf.HealthPath)
wantDisposition(t, do(t, denied), http.StatusNotFound, servewaf.DispositionDeny)
denied := s.question(siteA, otherClient, proxy.HealthPath)
wantDisposition(t, do(t, denied), http.StatusNotFound, proxy.DispositionDeny)
again = s.question(siteA, client, "/")
again.Header.Set(requestIDHeader, denied.Header.Get(requestIDHeader))
wantDisposition(t, do(t, again), http.StatusBadRequest, "")
// The report ends the holding, and the refused questions changed nothing.
got := s.report(servewaf.Report{RequestID: id, ResponseBytes: answerBytes})
got := s.report(proxy.Report{RequestID: id, ResponseBytes: answerBytes})
wantStatus(t, got, http.StatusNoContent)
if history := s.history(); history.ResponseBytes != answerBytes {
@@ -402,7 +402,7 @@ func TestQuestionWithAHeldIDIsRefused(t *testing.T) {
again = s.question(siteA, client, "/")
again.Header.Set(requestIDHeader, id)
wantDisposition(t, do(t, again), http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, do(t, again), http.StatusOK, proxy.DispositionAllow)
}
func TestReportNeverReachesAQuestionStillBeingHandled(t *testing.T) {
@@ -436,7 +436,7 @@ func TestReportNeverReachesAQuestionStillBeingHandled(t *testing.T) {
// A report for a question not yet answered is ignored, and that question's
// id is taken.
got := s.report(servewaf.Report{RequestID: id, ResponseBytes: 1000})
got := s.report(proxy.Report{RequestID: id, ResponseBytes: 1000})
wantStatus(t, got, http.StatusNoContent)
// This would wait on the same lookup were the id not taken.
@@ -451,7 +451,7 @@ func TestReportNeverReachesAQuestionStillBeingHandled(t *testing.T) {
select {
case got := <-answered:
wantDisposition(t, got, http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, got, http.StatusOK, proxy.DispositionAllow)
case <-time.After(waitLimit):
t.Fatal("the question got no answer")
}
@@ -466,7 +466,7 @@ func TestReportNeverReachesAQuestionStillBeingHandled(t *testing.T) {
}
// The true report comes after, and is the one that counts.
got = s.report(servewaf.Report{RequestID: id, ResponseBytes: answerBytes})
got = s.report(proxy.Report{RequestID: id, ResponseBytes: answerBytes})
wantStatus(t, got, http.StatusNoContent)
if history := s.history(); history.ResponseBytes != answerBytes {
@@ -484,13 +484,13 @@ func TestPeerAbsentOrUnreadableIsAnsweredAndLoggedInvalid(t *testing.T) {
s := startServeWAF(t, "", nil)
req := s.question(siteA, client, "/")
req.Header.Del(servewaf.PeerHeader)
req.Header.Del(proxy.PeerHeader)
if peer != "" {
req.Header.Set(servewaf.PeerHeader, peer)
req.Header.Set(proxy.PeerHeader, peer)
}
wantDisposition(t, do(t, req), http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, do(t, req), http.StatusOK, proxy.DispositionAllow)
if line := s.out.requestLine(t); line.PeerIP != "invalid IP" {
t.Errorf("log line has peer_ip %q, want invalid IP", line.PeerIP)
@@ -511,8 +511,8 @@ func TestContentLengthUnreadableOrNegativeCountsAsAbsent(t *testing.T) {
})
req := s.question(siteA, client, "/")
req.Header.Set(servewaf.ContentLengthHeader, announced)
wantDisposition(t, do(t, req), http.StatusOK, servewaf.DispositionAllow)
req.Header.Set(proxy.ContentLengthHeader, announced)
wantDisposition(t, do(t, req), http.StatusOK, proxy.DispositionAllow)
if line := s.out.requestLine(t); line.ContentLength != 0 {
t.Errorf("log line has content_length %d, want none", line.ContentLength)
@@ -527,13 +527,13 @@ func TestHeaderSentTwiceUsesItsFirstValue(t *testing.T) {
s := startServeWAF(t, "", nil)
req := s.question(siteA, client, "/")
req.Header.Add(servewaf.ClientHeader, otherClient)
req.Header.Add(servewaf.PeerHeader, "172.18.0.3")
req.Header.Add(proxy.ClientHeader, otherClient)
req.Header.Add(proxy.PeerHeader, "172.18.0.3")
req.Header.Set(requestIDHeader, "first")
req.Header.Add(requestIDHeader, "second")
req.Header.Set(servewaf.ContentLengthHeader, "1234")
req.Header.Add(servewaf.ContentLengthHeader, "5678")
wantDisposition(t, do(t, req), http.StatusOK, servewaf.DispositionAllow)
req.Header.Set(proxy.ContentLengthHeader, "1234")
req.Header.Add(proxy.ContentLengthHeader, "5678")
wantDisposition(t, do(t, req), http.StatusOK, proxy.DispositionAllow)
line := s.out.requestLine(t)
if line.ClientIP != client || line.PeerIP != rproxyPeer ||
@@ -562,7 +562,7 @@ func sendQuestionWithPartOfItsBody(t *testing.T, conn net.Conn) {
_, err := fmt.Fprintf(conn,
"POST / HTTP/1.1\r\nHost: %s\r\n%s: %s\r\n%s: an-id\r\n"+
"Content-Length: 100\r\n\r\npart",
siteA, servewaf.ClientHeader, client, requestIDHeader)
siteA, proxy.ClientHeader, client, requestIDHeader)
if err != nil {
t.Fatalf("send the question: %v", err)
}
@@ -592,7 +592,7 @@ func TestQuestionWhoseBodyStopsArrivingGetsNoAnswer(t *testing.T) {
t.Parallel()
s := startServeWAFWith(t, "", map[string]string{metricsToken: token},
func(server *servewaf.Server) { server.ReadTimeout = readTimeout })
func(server *proxy.Server) { server.ReadTimeout = readTimeout })
conn := dial(t, s.addr)
sendQuestionWithPartOfItsBody(t, conn)
@@ -615,7 +615,7 @@ func TestQuestionWhoseBodyStopsArrivingGetsNoAnswer(t *testing.T) {
// The id was not taken.
again := s.question(siteA, client, "/")
again.Header.Set(requestIDHeader, "an-id")
wantDisposition(t, do(t, again), http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, do(t, again), http.StatusOK, proxy.DispositionAllow)
})
}
}
@@ -632,7 +632,7 @@ func TestQuestionDeniedGetsTheBanResponse(t *testing.T) {
})
got := s.ask(client, "/")
wantDisposition(t, got, status, servewaf.DispositionDeny)
wantDisposition(t, got, status, proxy.DispositionDeny)
wantBody(t, got, http.StatusText(status)+"\n")
wantLine(t, s.out.requestLine(t), status, requestlog.ActionDenied)
})
@@ -647,7 +647,7 @@ func TestBanResponseCloseIsAnAnswerOfItsOwn(t *testing.T) {
})
got := s.ask(client, "/")
wantDisposition(t, got, http.StatusOK, servewaf.DispositionClose)
wantDisposition(t, got, http.StatusOK, proxy.DispositionClose)
wantBody(t, got, "")
// The visitor is sent nothing.
wantLine(t, s.out.requestLine(t), 0, requestlog.ActionDenied)
@@ -664,12 +664,12 @@ func TestBlockRuleIsDeniedWith403AndABanRuleWithTheBanResponse(t *testing.T) {
})
got := s.ask(client, "/blocked")
wantDisposition(t, got, http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, got, http.StatusForbidden, proxy.DispositionDeny)
wantLine(t, s.out.requestLine(t), http.StatusForbidden,
requestlog.ActionRuleBlocked)
got = s.ask(client, "/.env")
wantDisposition(t, got, http.StatusTooManyRequests, servewaf.DispositionDeny)
wantDisposition(t, got, http.StatusTooManyRequests, proxy.DispositionDeny)
wantLine(t, s.out.requestLines(t, 2)[1], http.StatusTooManyRequests,
requestlog.ActionBanned)
}
@@ -681,17 +681,15 @@ func TestQuestionUnderTheOwnPrefixIsDeniedWith404AfterTheChecks(t *testing.T) {
metricsToken: token, denyNets: otherClient,
})
for _, path := range []string{
servewaf.HealthPath, servewaf.MetricsPath, servewaf.ReportPath,
} {
for _, path := range []string{proxy.HealthPath, proxy.MetricsPath, proxy.ReportPath} {
got := s.ask(client, path)
wantDisposition(t, got, http.StatusNotFound, servewaf.DispositionDeny)
wantDisposition(t, got, http.StatusNotFound, proxy.DispositionDeny)
}
wantLine(t, s.out.requestLine(t), http.StatusNotFound, requestlog.ActionAdmin)
got := s.ask(otherClient, servewaf.MetricsPath)
wantDisposition(t, got, http.StatusForbidden, servewaf.DispositionDeny)
got := s.ask(otherClient, proxy.MetricsPath)
wantDisposition(t, got, http.StatusForbidden, proxy.DispositionDeny)
}
func TestObserveModeAllowsAndLogsWhatEnforceModeWouldHaveDone(t *testing.T) {
@@ -700,7 +698,7 @@ func TestObserveModeAllowsAndLogsWhatEnforceModeWouldHaveDone(t *testing.T) {
s := startServeWAF(t, "", map[string]string{mode: observe, denyNets: client})
got := s.ask(client, "/")
wantDisposition(t, got, http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, got, http.StatusOK, proxy.DispositionAllow)
line := s.out.requestLine(t)
wantLine(t, line, http.StatusOK, requestlog.ActionForward)
@@ -716,7 +714,7 @@ func TestObserveModeRefusalAnsweredAllowCountsForTheErrorBurst(t *testing.T) {
for range 2 {
got := s.ask(client, "/blocked")
wantDisposition(t, got, http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, got, http.StatusOK, proxy.DispositionAllow)
}
lines := s.out.requestLines(t, 2)
@@ -735,7 +733,7 @@ func TestDeniedQuestionCountsForTheErrorBurst(t *testing.T) {
for range 2 {
got := s.ask(client, "/blocked")
wantDisposition(t, got, http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, got, http.StatusForbidden, proxy.DispositionDeny)
}
lines := s.out.requestLines(t, 2)
@@ -764,7 +762,7 @@ func TestAllowCarriesTheLookupHeadersWhileTheSettingIsSet(t *testing.T) {
})
got := s.ask(fromDE, "/")
wantDisposition(t, got, http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, got, http.StatusOK, proxy.DispositionAllow)
asn, country := got.header.Get("X-Client-Asn"), got.header.Get("X-Client-Country")
if asn != tc.wantASN || country != tc.wantCountry {
@@ -789,7 +787,7 @@ func TestReportCountsTowardAByteLimitWhichThenBans(t *testing.T) {
}
// 100 bytes are over the limit of 99.
got := s.report(servewaf.Report{
got := s.report(proxy.Report{
RequestID: id, Status: http.StatusBadGateway,
RequestBytes: bodyBytes, ResponseBytes: answerBytes,
})
@@ -813,7 +811,7 @@ func TestReportCountsTowardAByteLimitWhichThenBans(t *testing.T) {
}
got = s.ask(client, "/")
wantDisposition(t, got, http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, got, http.StatusForbidden, proxy.DispositionDeny)
}
func TestReportCountsAtThePercentageItsQuestionWasGiven(t *testing.T) {
@@ -827,10 +825,10 @@ func TestReportCountsAtThePercentageItsQuestionWasGiven(t *testing.T) {
})
s.passedOn(fromKP)
wantDisposition(t, s.ask(fromKP, "/"), http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, s.ask(fromKP, "/"), http.StatusOK, proxy.DispositionAllow)
s.passedOn(fromDE)
wantDisposition(t, s.ask(fromDE, "/"), http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, s.ask(fromDE, "/"), http.StatusForbidden, proxy.DispositionDeny)
}
func TestReportAddsTheRequestToItsClientsHistoryAndTheAnomalyCounters(t *testing.T) {
@@ -848,7 +846,7 @@ func TestReportAddsTheRequestToItsClientsHistoryAndTheAnomalyCounters(t *testing
t.Errorf("anomaly counters %v before the report, want none", counters)
}
got := s.report(servewaf.Report{
got := s.report(proxy.Report{
RequestID: id, Status: http.StatusBadGateway,
RequestBytes: bodyBytes, ResponseBytes: answerBytes,
})
@@ -876,7 +874,7 @@ func TestDeniedRequestIsFinishedAtItsDecision(t *testing.T) {
s.allowed(client)
denied := s.question(siteA, client, "/")
wantDisposition(t, do(t, denied), http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, do(t, denied), http.StatusForbidden, proxy.DispositionDeny)
counters := s.server.Anomalies.Snapshot()
if len(counters) != 1 || counters[0].Minute.Current != 1 {
@@ -893,7 +891,7 @@ func TestDeniedRequestIsFinishedAtItsDecision(t *testing.T) {
wantMetric(t, s.metrics(), series, 1)
got := s.report(servewaf.Report{
got := s.report(proxy.Report{
RequestID: denied.Header.Get(requestIDHeader), Status: http.StatusForbidden,
ResponseBytes: 1000, DurationTotal: 2,
})
@@ -926,7 +924,7 @@ func TestMetricsCountAnAllowedRequestFromItsReport(t *testing.T) {
wantMetric(t, metrics, `smallwebwaf_requests_in_flight{instance="`+alertInstance+`"}`,
1) // the scrape itself
got := s.report(servewaf.Report{
got := s.report(proxy.Report{
RequestID: id, Status: http.StatusBadGateway,
RequestBytes: bodyBytes, ResponseBytes: answerBytes,
DurationTotal: 5, DurationUpstreamTotal: 4,
@@ -944,7 +942,7 @@ func TestMetricsCountAnAllowedRequestFromItsReport(t *testing.T) {
// check needs a server that has not been scraped yet.
unscraped := startServeWAF(t, "", map[string]string{metricsToken: token})
got = unscraped.report(servewaf.Report{
got = unscraped.report(proxy.Report{
RequestID: unscraped.allowed(client), Status: http.StatusBadGateway, DurationTotal: 5,
})
wantStatus(t, got, http.StatusNoContent)
@@ -957,7 +955,7 @@ func TestReportForARequestNotHeldIsIgnored(t *testing.T) {
s := startServeWAF(t, "", map[string]string{bytesLimitPerMinute: byteLimit})
got := s.report(servewaf.Report{RequestID: "no-such-request", ResponseBytes: 1000})
got := s.report(proxy.Report{RequestID: "no-such-request", ResponseBytes: 1000})
wantStatus(t, got, http.StatusNoContent)
if clients := s.server.Limiter.Snapshot(); len(clients) != 0 {
@@ -974,7 +972,7 @@ func TestReportForARequestNotHeldIsIgnored(t *testing.T) {
// A second report of the same request does not count it twice.
id := s.allowed(client)
for range 2 {
got = s.report(servewaf.Report{RequestID: id, ResponseBytes: answerBytes})
got = s.report(proxy.Report{RequestID: id, ResponseBytes: answerBytes})
wantStatus(t, got, http.StatusNoContent)
}
@@ -1162,7 +1160,7 @@ func TestBytesAtTheirMostEachWayBanRatherThanOverflow(t *testing.T) {
s := startServeWAF(t, "", map[string]string{bytesLimitPerMinute: byteLimit})
got := s.report(servewaf.Report{
got := s.report(proxy.Report{
RequestID: s.allowed(client), Status: http.StatusOK,
RequestBytes: reportedBytesLimit, ResponseBytes: reportedBytesLimit,
})
@@ -1247,9 +1245,9 @@ func TestReportWritesTheLastLineWithTheDecisionsAndTheReportsFields(t *testing.T
req.Header.Set("X-Forwarded-Proto", "https")
id := req.Header.Get(requestIDHeader)
wantDisposition(t, do(t, req), http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, do(t, req), http.StatusOK, proxy.DispositionAllow)
got := s.report(servewaf.Report{
got := s.report(proxy.Report{
RequestID: id, Status: http.StatusCreated,
RequestBytes: bodyBytes, ResponseBytes: answerBytes,
DurationTotal: 12.5, DurationUpstreamTotal: 10.25,
@@ -1296,7 +1294,7 @@ func TestEveryDeniedRequestsReportGetsItsLastLine(t *testing.T) {
"close", map[string]string{denyNets: client, banResponse: banResponseClose}, "/",
0, requestlog.ActionDenied,
},
{"own prefix", nil, servewaf.HealthPath, http.StatusNotFound, requestlog.ActionAdmin},
{"own prefix", nil, proxy.HealthPath, http.StatusNotFound, requestlog.ActionAdmin},
} {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
@@ -1307,7 +1305,7 @@ func TestEveryDeniedRequestsReportGetsItsLastLine(t *testing.T) {
id := req.Header.Get(requestIDHeader)
do(t, req)
got := s.report(servewaf.Report{
got := s.report(proxy.Report{
RequestID: id, Status: tc.status, ResponseBytes: 8, DurationTotal: 3,
})
wantStatus(t, got, http.StatusNoContent)
@@ -1343,18 +1341,18 @@ func TestOldestAnsweredRequestIsDroppedPastTheBound(t *testing.T) {
t.Fatalf("question: %v", err)
}
wantDisposition(t, readAnswer(res), http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, readAnswer(res), http.StatusOK, proxy.DispositionAllow)
}
// The table is full again with next and those, without oldest.
got := s.report(servewaf.Report{RequestID: oldest, ResponseBytes: answerBytes})
got := s.report(proxy.Report{RequestID: oldest, ResponseBytes: answerBytes})
wantStatus(t, got, http.StatusNoContent)
if counted := s.history().Requests; counted != 0 {
t.Errorf("history holds %d requests, want the dropped one not counted", counted)
}
got = s.report(servewaf.Report{RequestID: next, ResponseBytes: answerBytes})
got = s.report(proxy.Report{RequestID: next, ResponseBytes: answerBytes})
wantStatus(t, got, http.StatusNoContent)
if counted := s.history().Requests; counted != 1 {
@@ -1368,10 +1366,10 @@ func TestBanMadeThroughOneHostRefusesTheClientOnAnother(t *testing.T) {
s := startServeWAF(t, "", map[string]string{rulesDir: writeRules(t, testRules)})
got := do(t, s.question(siteA, client, "/.env"))
wantDisposition(t, got, http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, got, http.StatusForbidden, proxy.DispositionDeny)
got = do(t, s.question(siteB, client, "/"))
wantDisposition(t, got, http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, got, http.StatusForbidden, proxy.DispositionDeny)
lines := s.out.requestLines(t, 2)
if lines[0].Host != siteA || lines[1].Host != siteB {
@@ -1397,7 +1395,7 @@ func TestRequestsOnEverySiteCountTowardOneSetOfLimits(t *testing.T) {
s.allowed(client)
got := do(t, s.question(siteB, client, "/"))
wantDisposition(t, got, http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, got, http.StatusForbidden, proxy.DispositionDeny)
}
func TestOwnEndpointsAnswerOnlyWithoutTheClientHeader(t *testing.T) {
@@ -1412,13 +1410,13 @@ func TestOwnEndpointsAnswerOnlyWithoutTheClientHeader(t *testing.T) {
path, authorization string
want int
}{
{servewaf.HealthPath, "", http.StatusOK},
{servewaf.MetricsPath, bearer, http.StatusOK},
{servewaf.MetricsPath, "", http.StatusUnauthorized},
{servewaf.BansPath, adminBearer, http.StatusOK},
{servewaf.BansPath, "", http.StatusUnauthorized},
{servewaf.ClientsPath + client, adminBearer, http.StatusOK},
{servewaf.ReportPath, "", http.StatusNotFound},
{proxy.HealthPath, "", http.StatusOK},
{proxy.MetricsPath, bearer, http.StatusOK},
{proxy.MetricsPath, "", http.StatusUnauthorized},
{proxy.BansPath, adminBearer, http.StatusOK},
{proxy.BansPath, "", http.StatusUnauthorized},
{proxy.ClientsPath + client, adminBearer, http.StatusOK},
{proxy.ReportPath, "", http.StatusNotFound},
{"/_smallwebwaf/other", "", http.StatusNotFound},
{"/", "", http.StatusNotFound},
} {
@@ -1431,9 +1429,9 @@ func TestOwnEndpointsAnswerOnlyWithoutTheClientHeader(t *testing.T) {
req.Header.Set("Authorization", tc.authorization)
if strings.HasPrefix(tc.path, "/_smallwebwaf/") {
wantDisposition(t, do(t, req), http.StatusNotFound, servewaf.DispositionDeny)
wantDisposition(t, do(t, req), http.StatusNotFound, proxy.DispositionDeny)
} else {
wantDisposition(t, do(t, req), http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, do(t, req), http.StatusOK, proxy.DispositionAllow)
}
}
}
@@ -1443,11 +1441,10 @@ func TestOwnEndpointsLinesDoNotSayWhichOfTheTwoTheyAre(t *testing.T) {
s := startServeWAF(t, "", nil)
wantStatus(t, get(t, s.addr, servewaf.HealthPath), http.StatusOK)
wantStatus(t, get(t, s.addr, proxy.HealthPath), http.StatusOK)
line := s.out.requestLine(t)
if _, there := line.fields["servewaf_line"]; there ||
line.Path != servewaf.HealthPath {
if _, there := line.fields["servewaf_line"]; there || line.Path != proxy.HealthPath {
t.Errorf("the health check's log line is %+v", line.fields)
}
}
@@ -1459,12 +1456,12 @@ func TestALargeBodyAnnouncedAndLongHeadersAreNoReasonToRefuse(t *testing.T) {
req := s.questionWith(http.MethodPost, siteA, client, "/",
strings.NewReader("a body"))
req.Header.Set(servewaf.ContentLengthHeader, "1073741824")
req.Header.Set(proxy.ContentLengthHeader, "1073741824")
req.Header.Set(forwardedFor, otherClient)
req.Header.Set("X-Long", strings.Repeat("x", 40<<10))
got := do(t, req)
wantDisposition(t, got, http.StatusOK, servewaf.DispositionAllow)
wantDisposition(t, got, http.StatusOK, proxy.DispositionAllow)
line := s.out.requestLine(t)
if line.ClientIP != client || line.ContentLength != 1<<30 {
@@ -1532,7 +1529,7 @@ carried header:Content-Length block ^6$
strings.NewReader("a body"))
if tc.announced != "" {
req.Header.Set(servewaf.ContentLengthHeader, tc.announced)
req.Header.Set(proxy.ContentLengthHeader, tc.announced)
}
wantStatus(t, do(t, req), tc.want)
@@ -1550,19 +1547,19 @@ func TestCoreRuleSetReadsTheBodyAQuestionCarries(t *testing.T) {
req := s.questionWith(http.MethodPost, siteA, client, "/",
strings.NewReader(body))
req.Header.Set("Content-Type", contentType)
req.Header.Set(servewaf.ContentLengthHeader, "100000")
req.Header.Set(proxy.ContentLengthHeader, "100000")
return do(t, req)
}
got := ask(formData, "id=1'%20OR%20'1'='1")
wantDisposition(t, got, http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, got, http.StatusForbidden, proxy.DispositionDeny)
// The first 64 KiB of a longer JSON body cannot be parsed, which is no
// attack, so the Core Rule Set does not read it.
cut := `{"text":"` + strings.Repeat("x", servewaf.QuestionBodyMaxBytes)
got = ask("application/json", cut[:servewaf.QuestionBodyMaxBytes])
wantDisposition(t, got, http.StatusOK, servewaf.DispositionAllow)
cut := `{"text":"` + strings.Repeat("x", proxy.QuestionBodyMaxBytes)
got = ask("application/json", cut[:proxy.QuestionBodyMaxBytes])
wantDisposition(t, got, http.StatusOK, proxy.DispositionAllow)
}
func TestCoreRuleSetAlertNamesTheSite(t *testing.T) {
@@ -1571,7 +1568,7 @@ func TestCoreRuleSetAlertNamesTheSite(t *testing.T) {
s := startServeWAF(t, "", map[string]string{wafMode: block})
got := s.ask(client, sqlInjection)
wantDisposition(t, got, http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, got, http.StatusForbidden, proxy.DispositionDeny)
waiting := s.queue.Snapshot().Waiting[alerts.DestinationWebhook]
if len(waiting) != 1 || waiting[0].Event != alerts.EventWAFBlock ||
@@ -1586,7 +1583,7 @@ func TestReputationHitAlertNamesTheSite(t *testing.T) {
s := startServeWAF(t, "", map[string]string{blocklistURLs: dropURL})
loadLists(t, s.server, map[string][]string{dropURL: {client}})
wantDisposition(t, s.ask(client, "/"), http.StatusForbidden, servewaf.DispositionDeny)
wantDisposition(t, s.ask(client, "/"), http.StatusForbidden, proxy.DispositionDeny)
waiting := s.queue.Snapshot().Waiting[alerts.DestinationWebhook]
if len(waiting) != 1 || waiting[0].Event != alerts.EventReputationHit ||
internal/servewaf/staticlists_test.go → internal/proxy/staticlists_test.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"net/http"
internal/servewaf/trappaths_test.go → internal/proxy/trappaths_test.go
+1 -1
View File
@@ -1,4 +1,4 @@
package servewaf_test
package proxy_test
import (
"net/http"
internal/rproxy/limits_test.go
+61 -61
View File
@@ -16,9 +16,9 @@ import (
"time"
"sneak.berlin/go/smallwebwaf/internal/config"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/rproxy"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
// post is the start of a POST whose headers end with what follows it.
@@ -71,11 +71,11 @@ func TestABodyAnnouncedOverItsLimitIsRefusedOnceServeWAFAllowsIt(t *testing.T) {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(http.ResponseWriter, *http.Request) {
t.Error("the app was asked")
})
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxRequestSize: tc.limit,
})
@@ -85,11 +85,11 @@ func TestABodyAnnouncedOverItsLimitIsRefusedOnceServeWAFAllowsIt(t *testing.T) {
t.Errorf("answered %+v, want 413", got)
}
if asked := standIn.question(t); len(asked.body) != tc.asked {
if asked := servewaf.question(t); len(asked.body) != tc.asked {
t.Errorf("the question carries %d bytes, want %d", len(asked.body), tc.asked)
}
report := standIn.report(t)
report := servewaf.report(t)
if report.Status != http.StatusRequestEntityTooLarge {
t.Errorf("report %+v, want status 413", report)
}
@@ -100,9 +100,9 @@ func TestABodyAnnouncedOverItsLimitIsRefusedOnceServeWAFAllowsIt(t *testing.T) {
func TestADenyOutranksTheBodySizeLimit(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, deny)
servewaf := startServeWAF(t, deny)
app := startApp(t, greet)
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxRequestSize: "1K",
})
@@ -132,12 +132,12 @@ func TestABodyNotAnnouncedOverItsLimitIsRefused(t *testing.T) {
var asked atomic.Bool
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(w http.ResponseWriter, r *http.Request) {
asked.Store(true)
greet(w, r)
})
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxRequestSize: tc.limit,
})
@@ -165,12 +165,12 @@ func TestAResponseOverItsLimit(t *testing.T) {
t.Run("announced, is refused", func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(w http.ResponseWriter, _ *http.Request) {
w.Header().Set(contentLengthHeader, strconv.Itoa(len(large)))
_, _ = io.WriteString(w, large)
})
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxResponseSize: "1K",
})
@@ -179,7 +179,7 @@ func TestAResponseOverItsLimit(t *testing.T) {
t.Errorf("answered %d, want 502", got.status)
}
if report := standIn.report(t); report.Status != http.StatusBadGateway {
if report := servewaf.report(t); report.Status != http.StatusBadGateway {
t.Errorf("report %+v, want status 502", report)
}
})
@@ -187,13 +187,13 @@ func TestAResponseOverItsLimit(t *testing.T) {
t.Run("not announced, is cut off", func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(w http.ResponseWriter, _ *http.Request) {
_, _ = io.WriteString(w, large[:1])
_ = http.NewResponseController(w).Flush()
_, _ = io.WriteString(w, large[1:])
})
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxResponseSize: "1K",
})
@@ -205,7 +205,7 @@ func TestAResponseOverItsLimit(t *testing.T) {
t.Errorf("read %d bytes (%v), want the answer cut off", len(text), err)
}
report := standIn.report(t)
report := servewaf.report(t)
if report.Status != http.StatusOK || report.ResponseBytes > 1<<10 {
t.Errorf("report %+v, want status 200 and at most 1K of the answer", report)
}
@@ -217,11 +217,11 @@ func TestAHeadWhoseAnswerAnnouncesMoreThanTheResponseLimitIsPassedOn(t *testing.
const announced = "2048"
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(w http.ResponseWriter, _ *http.Request) {
w.Header().Set(contentLengthHeader, announced)
})
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxResponseSize: "1K",
})
@@ -240,9 +240,9 @@ func TestASettingOfOffSetsNoLimit(t *testing.T) {
t.Run(setting, func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
setting: "off",
})
@@ -251,7 +251,7 @@ func TestASettingOfOffSetsNoLimit(t *testing.T) {
wantGreeting(t, visit(t, newRequest(t, http.MethodPost, addr, "/",
strings.NewReader("a body"))))
if got := get(t, addr, servewaf.HealthPath); got.status != http.StatusOK {
if got := get(t, addr, proxy.HealthPath); got.status != http.StatusOK {
t.Errorf("answered %+v, want rproxy's own 200", got)
}
})
@@ -270,9 +270,9 @@ func TestAVisitorTooSlowToSendTheFirstPartIsAnswered408(t *testing.T) {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, out := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, out := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxRequestTime: "500",
})
@@ -288,11 +288,11 @@ func TestAVisitorTooSlowToSendTheFirstPartIsAnswered408(t *testing.T) {
t.Errorf("line %v, want no disposition and 10 bytes", line)
}
if len(standIn.questions) != 0 {
if len(servewaf.questions) != 0 {
t.Error("servewaf was asked")
}
standIn.wantNoReport(t)
servewaf.wantNoReport(t)
})
}
}
@@ -300,9 +300,9 @@ func TestAVisitorTooSlowToSendTheFirstPartIsAnswered408(t *testing.T) {
func TestAVisitorThatGoesAwayBeforeTheFirstPartIsNotAsked(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, out := startRProxy(t, standIn.URL, app.URL, nil)
addr, out := startRProxy(t, servewaf.URL, app.URL, nil)
conn := dial(t, addr)
send(t, conn, post+announcedLength(100)+"some of it")
@@ -313,7 +313,7 @@ func TestAVisitorThatGoesAwayBeforeTheFirstPartIsNotAsked(t *testing.T) {
t.Errorf("line %v, want no answer and no disposition", line)
}
if len(standIn.questions) != 0 {
if len(servewaf.questions) != 0 {
t.Error("servewaf was asked")
}
}
@@ -334,9 +334,9 @@ func TestABodyThatCannotBeReadClosesTheConnectionWithoutAnAnswer(t *testing.T) {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, out := startRProxy(t, standIn.URL, app.URL, nil)
addr, out := startRProxy(t, servewaf.URL, app.URL, nil)
conn := dial(t, addr)
send(t, conn, tc.request)
@@ -364,7 +364,7 @@ func TestABodyThatCannotBeReadClosesTheConnectionWithoutAnAnswer(t *testing.T) {
t.Errorf("line %v, want no answer and no disposition", line)
}
if len(standIn.questions) != 0 {
if len(servewaf.questions) != 0 {
t.Error("servewaf was asked")
}
})
@@ -404,11 +404,11 @@ func TestABodyLeftUnreadIsReadOnlyUntilTheRequestTimeLimit(t *testing.T) {
announced = 100 * questionBodyMaxBytes
)
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(w http.ResponseWriter, _ *http.Request) {
w.WriteHeader(http.StatusNoContent)
})
_, _, server := startServer(t, standIn.URL, app.URL, map[string]string{
_, _, server := startServer(t, servewaf.URL, app.URL, map[string]string{
maxRequestTime: strconv.FormatInt(limit.Milliseconds(), 10),
})
@@ -454,9 +454,9 @@ func TestAnAnswerRProxyGivesItselfHasTheResponseTimeToBeSent(t *testing.T) {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, deny)
servewaf := startServeWAF(t, deny)
app := startApp(t, greet)
_, _, server := startServer(t, standIn.URL, app.URL, map[string]string{
_, _, server := startServer(t, servewaf.URL, app.URL, map[string]string{
maxResponseTime: strconv.FormatInt(limit.Milliseconds(), 10),
})
@@ -484,9 +484,9 @@ func TestAnAnswerRProxyGivesItselfHasTheResponseTimeToBeSent(t *testing.T) {
func TestAVisitorTooSlowToSendTheRestIsAnswered408(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxRequestTime: "3000",
})
@@ -498,11 +498,11 @@ func TestAVisitorTooSlowToSendTheRestIsAnswered408(t *testing.T) {
t.Errorf("status %d, want 408", status)
}
if asked := standIn.question(t); len(asked.body) != questionBodyMaxBytes {
if asked := servewaf.question(t); len(asked.body) != questionBodyMaxBytes {
t.Errorf("the question carries %d bytes", len(asked.body))
}
if report := standIn.report(t); report.Status != http.StatusRequestTimeout {
if report := servewaf.report(t); report.Status != http.StatusRequestTimeout {
t.Errorf("report %+v, want status 408", report)
}
}
@@ -553,8 +553,8 @@ func TestAnAppTooSlowToTakeTheRequestIsAnswered504(t *testing.T) {
writeSize = 32 << 10
)
standIn := startServeWAF(t, allow)
addr, _ := startRProxy(t, standIn.URL, startAppThatTakesNothing(t),
servewaf := startServeWAF(t, allow)
addr, _ := startRProxy(t, servewaf.URL, startAppThatTakesNothing(t),
map[string]string{maxRequestTime: "3000"})
conn := dial(t, addr)
@@ -580,14 +580,14 @@ func TestAnAppTooSlowToAnswerIsAnswered504(t *testing.T) {
t.Parallel()
release := make(chan struct{})
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(http.ResponseWriter, *http.Request) {
<-release
})
t.Cleanup(func() { close(release) })
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxResponseTime: "300",
})
@@ -596,7 +596,7 @@ func TestAnAppTooSlowToAnswerIsAnswered504(t *testing.T) {
t.Errorf("answered %d, want 504", got.status)
}
if report := standIn.report(t); report.Status != http.StatusGatewayTimeout {
if report := servewaf.report(t); report.Status != http.StatusGatewayTimeout {
t.Errorf("report %+v, want status 504", report)
}
}
@@ -607,7 +607,7 @@ func TestAnAppTooSlowToFinishItsAnswerIsCutOff(t *testing.T) {
const start = "the start"
release := make(chan struct{})
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(w http.ResponseWriter, _ *http.Request) {
_, _ = io.WriteString(w, start)
_ = http.NewResponseController(w).Flush()
@@ -619,7 +619,7 @@ func TestAnAppTooSlowToFinishItsAnswerIsCutOff(t *testing.T) {
// The time limit is long enough for a loaded host to pass on the start of the
// answer before it runs out.
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxResponseTime: "3000",
})
@@ -642,7 +642,7 @@ func TestAnAppTooSlowToFinishItsAnswerIsCutOff(t *testing.T) {
res.StatusCode, body, err, start)
}
if report := standIn.report(t); report.Status != http.StatusOK {
if report := servewaf.report(t); report.Status != http.StatusOK {
t.Errorf("report %+v, want the status the visitor got", report)
}
}
@@ -656,7 +656,7 @@ func TestAVisitorTooSlowToTakeTheAnswerIsCutOff(t *testing.T) {
writeSize = 32 << 10
)
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(w http.ResponseWriter, _ *http.Request) {
part := make([]byte, writeSize)
@@ -669,7 +669,7 @@ func TestAVisitorTooSlowToTakeTheAnswerIsCutOff(t *testing.T) {
})
// The time limit is long enough for a loaded host to start passing on the
// answer before it runs out.
addr, out := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, out := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxResponseTime: "3000",
})
@@ -684,7 +684,7 @@ func TestAVisitorTooSlowToTakeTheAnswerIsCutOff(t *testing.T) {
t.Errorf("line %v, want status 200 and the answer cut off", line)
}
report := standIn.report(t)
report := servewaf.report(t)
if report.Status != http.StatusOK || report.ResponseBytes >= bodySize {
t.Errorf("report %+v, want status 200 and the answer cut off", report)
}
@@ -693,15 +693,15 @@ func TestAVisitorTooSlowToTakeTheAnswerIsCutOff(t *testing.T) {
func TestAnAppThatCannotBeReachedIsAnswered502WithAReport(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
addr, _ := startRProxy(t, standIn.URL, nowhere, nil)
servewaf := startServeWAF(t, allow)
addr, _ := startRProxy(t, servewaf.URL, nowhere, nil)
got := get(t, addr, "/")
if got.status != http.StatusBadGateway {
t.Errorf("answered %d, want 502", got.status)
}
if report := standIn.report(t); report.Status != http.StatusBadGateway {
if report := servewaf.report(t); report.Status != http.StatusBadGateway {
t.Errorf("report %+v, want status 502", report)
}
}
@@ -709,11 +709,11 @@ func TestAnAppThatCannotBeReachedIsAnswered502WithAReport(t *testing.T) {
func TestAVisitorThatStopsSendingAfterTheAppHasAnsweredGetsTheAnswer(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(w http.ResponseWriter, _ *http.Request) {
_, _ = io.WriteString(w, greeting)
})
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxRequestTime: "3000",
})
@@ -732,12 +732,12 @@ func TestAVisitorThatStopsSendingWhileTheAppWorksGetsNoAnswer(t *testing.T) {
t.Parallel()
working := make(chan struct{})
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(_ http.ResponseWriter, r *http.Request) {
close(working)
<-r.Context().Done()
})
addr, out := startRProxy(t, standIn.URL, app.URL, nil)
addr, out := startRProxy(t, servewaf.URL, app.URL, nil)
conn := dial(t, addr)
send(t, conn, "GET / HTTP/1.1\r\nHost: site.example\r\n\r\n")
@@ -773,7 +773,7 @@ func TestTheRequestTimeLimitDoesNotCutAnAnswerOnceTheAppHasTheRequest(t *testing
const answer = "the end of a long answer"
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(w http.ResponseWriter, r *http.Request) {
_, _ = io.Copy(io.Discard, r.Body)
_ = http.NewResponseController(w).Flush()
@@ -782,7 +782,7 @@ func TestTheRequestTimeLimitDoesNotCutAnAnswerOnceTheAppHasTheRequest(t *testing
_, _ = io.WriteString(w, answer)
})
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxRequestTime: "2000",
})
@@ -802,18 +802,18 @@ func TestAVisitorThatStopsSendingGetsAnAnswerRProxyGivesByTheDeadline(t *testing
{"a deny", post, http.StatusForbidden},
{
"the health check",
"GET " + servewaf.HealthPath + " HTTP/1.1\r\nHost: site.example\r\n",
"GET " + proxy.HealthPath + " HTTP/1.1\r\nHost: site.example\r\n",
http.StatusOK,
},
} {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, deny)
servewaf := startServeWAF(t, deny)
app := startApp(t, greet)
// The time limit is long enough for a loaded host to read the first part of
// the body before it runs out.
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxRequestTime: "3000",
})
internal/rproxy/question_test.go
+51 -51
View File
@@ -12,11 +12,11 @@ import (
"strings"
"testing"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
"sneak.berlin/go/smallwebwaf/internal/proxy"
)
// questionBodyMaxBytes is the most of a body a question carries.
const questionBodyMaxBytes = servewaf.QuestionBodyMaxBytes
const questionBodyMaxBytes = proxy.QuestionBodyMaxBytes
// chunked is the encoding of a body whose length the visitor did not announce.
const chunked = "chunked"
@@ -29,9 +29,9 @@ const pathGoReencodes = "/some%2Fpath/with%20space|pipe"
func TestQuestionIsTheVisitorsRequestWithRProxysHeaders(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, _ := startRProxy(t, standIn.URL, app.URL, nil)
addr, _ := startRProxy(t, servewaf.URL, app.URL, nil)
const target = pathGoReencodes + "?b=2&a=1&bad=%zz;x"
@@ -42,16 +42,16 @@ func TestQuestionIsTheVisitorsRequestWithRProxysHeaders(t *testing.T) {
req.Header.Set(forwardedForHeader, "198.51.100.1")
req.Header.Set(forwardedProtoHeader, "gopher")
req.Header.Set(requestIDHeader, "the-visitor's")
req.Header.Set(servewaf.ClientHeader, "198.51.100.2")
req.Header.Set(servewaf.PeerHeader, "198.51.100.3")
req.Header.Set(servewaf.ContentLengthHeader, "12345")
req.Header.Set(proxy.ClientHeader, "198.51.100.2")
req.Header.Set(proxy.PeerHeader, "198.51.100.3")
req.Header.Set(proxy.ContentLengthHeader, "12345")
// Go's client then sends no User-Agent, so that one in the question would be
// Go's own.
req.Header["User-Agent"] = nil
wantGreeting(t, visit(t, req))
asked := standIn.question(t)
asked := servewaf.question(t)
if asked.method != http.MethodDelete || asked.target != target ||
asked.host != site {
t.Errorf("asked about %s %s at %s", asked.method, asked.target, asked.host)
@@ -68,8 +68,8 @@ func TestQuestionIsTheVisitorsRequestWithRProxysHeaders(t *testing.T) {
want.Set(forwardedForHeader, "198.51.100.1")
want.Set(forwardedProtoHeader, "http")
want.Set(requestIDHeader, asked.header.Get(requestIDHeader))
want.Set(servewaf.ClientHeader, localhost)
want.Set(servewaf.PeerHeader, localhost)
want.Set(proxy.ClientHeader, localhost)
want.Set(proxy.PeerHeader, localhost)
if !maps.EqualFunc(asked.header, want, slices.Equal) {
t.Errorf("the question's headers are %v, want %v", asked.header, want)
@@ -93,14 +93,14 @@ func TestQuestionNamesTheVisitorATrustedProxySpeaksFor(t *testing.T) {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
forwarded := make(chan http.Header, 1)
app := startApp(t, func(w http.ResponseWriter, r *http.Request) {
forwarded <- r.Header.Clone()
greet(w, r)
})
addr, out := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, out := startRProxy(t, servewaf.URL, app.URL, map[string]string{
trustedProxies: tc.trusted,
})
@@ -109,9 +109,9 @@ func TestQuestionNamesTheVisitorATrustedProxySpeaksFor(t *testing.T) {
req.Header.Set(forwardedProtoHeader, "https")
wantGreeting(t, visit(t, req))
asked := standIn.question(t)
if asked.header.Get(servewaf.ClientHeader) != tc.client ||
asked.header.Get(servewaf.PeerHeader) != localhost ||
asked := servewaf.question(t)
if asked.header.Get(proxy.ClientHeader) != tc.client ||
asked.header.Get(proxy.PeerHeader) != localhost ||
asked.header.Get(forwardedForHeader) != visitor ||
asked.header.Get(forwardedProtoHeader) != tc.proto {
t.Errorf("the question's headers are %v", asked.header)
@@ -157,9 +157,9 @@ func TestQuestionNamesTheClientAsTheForwardedAddressesSay(t *testing.T) {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
trustedProxies: localhost + "/32,10.0.0.0/8",
})
@@ -167,7 +167,7 @@ func TestQuestionNamesTheClientAsTheForwardedAddressesSay(t *testing.T) {
req.Header[forwardedForHeader] = tc.header
wantGreeting(t, visit(t, req))
if got := standIn.question(t).header.Get(servewaf.ClientHeader); got != tc.client {
if got := servewaf.question(t).header.Get(proxy.ClientHeader); got != tc.client {
t.Errorf("the question names %s, want %s", got, tc.client)
}
})
@@ -197,7 +197,7 @@ func TestFirst64KiBReachServeWAFAndTheWholeBodyTheApp(t *testing.T) {
t.Parallel()
body := randomBytes(size)
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
received := make(chan []byte, 1)
app := startApp(t, func(w http.ResponseWriter, r *http.Request) {
whole, _ := io.ReadAll(r.Body)
@@ -205,7 +205,7 @@ func TestFirst64KiBReachServeWAFAndTheWholeBodyTheApp(t *testing.T) {
greet(w, r)
})
addr, _ := startRProxy(t, standIn.URL, app.URL, nil)
addr, _ := startRProxy(t, servewaf.URL, app.URL, nil)
req := newRequest(t, http.MethodPost, addr, "/", bytes.NewReader(body))
if !announced {
@@ -215,7 +215,7 @@ func TestFirst64KiBReachServeWAFAndTheWholeBodyTheApp(t *testing.T) {
wantGreeting(t, visit(t, req))
asked := standIn.question(t)
asked := servewaf.question(t)
want := body[:min(size, questionBodyMaxBytes)]
wantQuestionBody(t, asked, want, size, announced)
@@ -223,7 +223,7 @@ func TestFirst64KiBReachServeWAFAndTheWholeBodyTheApp(t *testing.T) {
t.Error("the app did not get the whole body")
}
if report := standIn.report(t); report.RequestBytes != int64(size) {
if report := servewaf.report(t); report.RequestBytes != int64(size) {
t.Errorf("report %+v, of %d bytes", report, size)
}
})
@@ -243,7 +243,7 @@ func wantQuestionBody(
len(want))
}
values := asked.header.Values(servewaf.ContentLengthHeader)
values := asked.header.Values(proxy.ContentLengthHeader)
if announced {
if !slices.Equal(values, []string{strconv.Itoa(size)}) ||
@@ -264,9 +264,9 @@ func wantQuestionBody(
func TestDenyNeedsOnlyTheFirstPartOfALargeBody(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, deny)
servewaf := startServeWAF(t, deny)
app := startApp(t, greet)
addr, _ := startRProxy(t, standIn.URL, app.URL, nil)
addr, _ := startRProxy(t, servewaf.URL, app.URL, nil)
// Far more announced than sent. Go's server does not wait for that much, so
// the answer comes at once.
@@ -278,7 +278,7 @@ func TestDenyNeedsOnlyTheFirstPartOfALargeBody(t *testing.T) {
t.Errorf("status %d, want servewaf's 403", status)
}
if report := standIn.report(t); report.RequestBytes != questionBodyMaxBytes {
if report := servewaf.report(t); report.RequestBytes != questionBodyMaxBytes {
t.Errorf("report %+v, want the first part's bytes", report)
}
}
@@ -306,8 +306,8 @@ func TestAQuestionCarriesItsBodyWhateverTheMethod(t *testing.T) {
t.Run(method+" "+tc.name, func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, deny)
addr, _ := startRProxy(t, standIn.URL, nowhere, nil)
servewaf := startServeWAF(t, deny)
addr, _ := startRProxy(t, servewaf.URL, nowhere, nil)
conn := dial(t, addr)
send(t, conn, method+" /x HTTP/1.1\r\nHost: site.example\r\n"+tc.framing)
@@ -316,7 +316,7 @@ func TestAQuestionCarriesItsBodyWhateverTheMethod(t *testing.T) {
t.Errorf("status %d, want servewaf's 403", status)
}
asked := standIn.question(t)
asked := servewaf.question(t)
if string(asked.body) != tc.body ||
!slices.Equal(asked.transferEncoding, tc.encoding) {
t.Errorf("the question carries %q, encoded %v, want %q, encoded %v",
@@ -334,11 +334,11 @@ func TestAMethodNotPassedOnIsAnswered405(t *testing.T) {
t.Run(method, func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(http.ResponseWriter, *http.Request) {
t.Error("the app was asked")
})
addr, out := startRProxy(t, standIn.URL, app.URL, nil)
addr, out := startRProxy(t, servewaf.URL, app.URL, nil)
got := visit(t, newRequest(t, method, addr, "/", http.NoBody))
if got.status != http.StatusMethodNotAllowed ||
@@ -352,11 +352,11 @@ func TestAMethodNotPassedOnIsAnswered405(t *testing.T) {
t.Errorf("line %v, want status 405 and no disposition", line)
}
if len(standIn.questions) != 0 {
if len(servewaf.questions) != 0 {
t.Error("servewaf was asked")
}
standIn.wantNoReport(t)
servewaf.wantNoReport(t)
})
}
}
@@ -372,18 +372,18 @@ func TestEachMethodPassedOnReachesServeWAFAndTheApp(t *testing.T) {
t.Parallel()
reached := make(chan string, 1)
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(_ http.ResponseWriter, r *http.Request) {
reached <- r.Method
})
addr, _ := startRProxy(t, standIn.URL, app.URL, nil)
addr, _ := startRProxy(t, servewaf.URL, app.URL, nil)
got := visit(t, newRequest(t, method, addr, "/", http.NoBody))
if got.status != http.StatusOK {
t.Errorf("answered %+v, want the app's 200", got)
}
if asked := standIn.question(t); asked.method != method {
if asked := servewaf.question(t); asked.method != method {
t.Errorf("servewaf was asked about %s", asked.method)
}
@@ -416,9 +416,9 @@ func TestARequestThatCannotGoToServeWAFAsSentIsRefused(t *testing.T) {
t.Run(name, func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, out := startRProxy(t, standIn.URL, app.URL, nil)
addr, out := startRProxy(t, servewaf.URL, app.URL, nil)
conn := dial(t, addr)
send(t, conn, request)
@@ -433,11 +433,11 @@ func TestARequestThatCannotGoToServeWAFAsSentIsRefused(t *testing.T) {
t.Errorf("line %v, want status 400 and no disposition", line)
}
if len(standIn.questions) != 0 {
if len(servewaf.questions) != 0 {
t.Error("servewaf was asked")
}
standIn.wantNoReport(t)
servewaf.wantNoReport(t)
})
}
}
@@ -447,9 +447,9 @@ func TestAHostWithAPercentSignButNoBracketGoesToServeWAF(t *testing.T) {
const host = "a%b"
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, _ := startRProxy(t, standIn.URL, app.URL, nil)
addr, _ := startRProxy(t, servewaf.URL, app.URL, nil)
conn := dial(t, addr)
send(t, conn, "GET / HTTP/1.1\r\nHost: "+host+"\r\n\r\n")
@@ -458,7 +458,7 @@ func TestAHostWithAPercentSignButNoBracketGoesToServeWAF(t *testing.T) {
t.Errorf("status %d, want the app's 200", status)
}
if asked := standIn.question(t); asked.host != host {
if asked := servewaf.question(t); asked.host != host {
t.Errorf("asked about the host %q, want %q", asked.host, host)
}
}
@@ -468,15 +468,15 @@ func TestATrustedPeerWithNoForwardedProtoIsAskedAboutAsHTTP(t *testing.T) {
const want = "http"
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
trustedProxies: localhost + "/32",
})
wantGreeting(t, get(t, addr, "/"))
asked := standIn.question(t)
asked := servewaf.question(t)
if got := asked.header.Get(forwardedProtoHeader); got != want {
t.Errorf("the question's %s is %q, want %s", forwardedProtoHeader, got, want)
}
@@ -497,9 +497,9 @@ func TestAQuestionNamesNoZone(t *testing.T) {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, deny)
servewaf := startServeWAF(t, deny)
app := startApp(t, greet)
_, out, server := startServer(t, standIn.URL, app.URL, map[string]string{
_, out, server := startServer(t, servewaf.URL, app.URL, map[string]string{
trustedProxies: localhost + "/32",
})
@@ -509,9 +509,9 @@ func TestAQuestionNamesNoZone(t *testing.T) {
server.Handler.ServeHTTP(httptest.NewRecorder(), req)
asked := standIn.question(t)
if asked.header.Get(servewaf.ClientHeader) != tc.client ||
asked.header.Get(servewaf.PeerHeader) != tc.peer {
asked := servewaf.question(t)
if asked.header.Get(proxy.ClientHeader) != tc.client ||
asked.header.Get(proxy.PeerHeader) != tc.peer {
t.Errorf("the question's headers are %v", asked.header)
}
internal/rproxy/request.go
+3 -3
View File
@@ -16,9 +16,9 @@ import (
"sync/atomic"
"time"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/rules"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
// flushAfterEachWrite has ReverseProxy pass on each part of the app's answer as
@@ -129,7 +129,7 @@ func (rq *request) readFirstPartOfBody() bool {
}
_ = rq.rc.SetReadDeadline(rq.requestDeadline())
held, err := io.ReadAll(io.LimitReader(rq.body, servewaf.QuestionBodyMaxBytes))
held, err := io.ReadAll(io.LimitReader(rq.body, proxy.QuestionBodyMaxBytes))
// From here on, the request timer ends a read of the rest of the body, so that
// the answer can name the side rproxy was waiting on.
_ = rq.rc.SetReadDeadline(time.Time{})
@@ -384,7 +384,7 @@ func (rq *request) finish(ctx context.Context) {
return
}
report := &servewaf.Report{
report := &proxy.Report{
RequestID: rq.id,
Status: min(rq.out.status, reportStatusMax),
RequestBytes: requestBytes,
internal/rproxy/rproxy.go
+5 -5
View File
@@ -22,7 +22,7 @@ import (
"time"
"sneak.berlin/go/smallwebwaf/internal/config"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
"sneak.berlin/go/smallwebwaf/internal/proxy"
)
// How rproxy keeps connections to the app and to servewaf open between
@@ -85,7 +85,7 @@ func New(params Params) *Server {
transport: newTransport(),
serveWAFTransport: newServeWAFTransport(),
reportURL: (&url.URL{
Scheme: backend.Scheme, Host: backend.Host, Path: servewaf.ReportPath,
Scheme: backend.Scheme, Host: backend.Host, Path: proxy.ReportPath,
}).String(),
}
@@ -166,7 +166,7 @@ func (h *handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
rq := h.newRequest(w, r)
defer rq.finish(r.Context())
if r.Method == http.MethodGet && r.URL.Path == servewaf.HealthPath {
if r.Method == http.MethodGet && r.URL.Path == proxy.HealthPath {
rq.answerHealth()
return
@@ -199,9 +199,9 @@ func (h *handler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
rq.noteAnswer(answer)
switch rq.disposition {
case servewaf.DispositionAllow:
case proxy.DispositionAllow:
rq.passToApp(r.Context())
case servewaf.DispositionClose:
case proxy.DispositionClose:
// This panic has Go's server close the connection without an answer,
// and log nothing; the deferred finish still runs.
panic(http.ErrAbortHandler)
internal/rproxy/rproxy_test.go
+80 -80
View File
@@ -19,9 +19,9 @@ import (
"time"
"sneak.berlin/go/smallwebwaf/internal/config"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/rproxy"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
)
const (
@@ -54,7 +54,7 @@ const (
// The headers the tests set and look at.
const (
dispositionHeader = servewaf.DispositionHeader
dispositionHeader = proxy.DispositionHeader
forwardedForHeader = "X-Forwarded-For"
forwardedProtoHeader = "X-Forwarded-Proto"
requestIDHeader = "X-Request-ID"
@@ -70,9 +70,9 @@ const (
// What the stand-in for servewaf answers.
const (
dispositionAllow = servewaf.DispositionAllow
dispositionDeny = servewaf.DispositionDeny
dispositionClose = servewaf.DispositionClose
dispositionAllow = proxy.DispositionAllow
dispositionDeny = proxy.DispositionDeny
dispositionClose = proxy.DispositionClose
// deniedBody is the body of a deny.
deniedBody = "refused by servewaf"
)
@@ -173,7 +173,7 @@ type serveWAF struct {
*httptest.Server
questions chan question
reports chan servewaf.Report
reports chan proxy.Report
}
// startServeWAF starts a stand-in for servewaf.
@@ -182,11 +182,11 @@ func startServeWAF(t *testing.T, answer http.HandlerFunc) *serveWAF {
s := &serveWAF{
questions: make(chan question, 10),
reports: make(chan servewaf.Report, 10),
reports: make(chan proxy.Report, 10),
}
s.Server = httptest.NewServer(http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
if r.Header.Get(servewaf.ClientHeader) == "" {
if r.Header.Get(proxy.ClientHeader) == "" {
s.takeReport(t, w, r)
return
@@ -213,10 +213,10 @@ func startServeWAF(t *testing.T, answer http.HandlerFunc) *serveWAF {
func (s *serveWAF) takeReport(t *testing.T, w http.ResponseWriter, r *http.Request) {
t.Helper()
var report servewaf.Report
var report proxy.Report
err := json.NewDecoder(r.Body).Decode(&report)
if err != nil || r.Method != http.MethodPost || r.URL.Path != servewaf.ReportPath {
if err != nil || r.Method != http.MethodPost || r.URL.Path != proxy.ReportPath {
t.Errorf("%s %s is no report: %v", r.Method, r.URL.Path, err)
}
@@ -237,7 +237,7 @@ func (s *serveWAF) wantNoReport(t *testing.T) {
}
// report waits for a report.
func (s *serveWAF) report(t *testing.T) servewaf.Report {
func (s *serveWAF) report(t *testing.T) proxy.Report {
t.Helper()
select {
@@ -246,7 +246,7 @@ func (s *serveWAF) report(t *testing.T) servewaf.Report {
case <-time.After(waitLimit):
t.Fatal("no report")
return servewaf.Report{}
return proxy.Report{}
}
}
@@ -273,7 +273,7 @@ func startServeWAFAnsweringReports(
backend := httptest.NewServer(http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
if r.Header.Get(servewaf.ClientHeader) != "" {
if r.Header.Get(proxy.ClientHeader) != "" {
answer(w, r)
return
@@ -498,7 +498,7 @@ func readStatus(t *testing.T, conn net.Conn) int {
func TestPassesAnAllowedRequestToTheAppAndItsAnswerBack(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, func(w http.ResponseWriter, r *http.Request) {
servewaf := startServeWAF(t, func(w http.ResponseWriter, r *http.Request) {
w.Header().Set(asnHeader, "AS64496")
w.Header().Set(countryHeader, "DE")
allow(w, r)
@@ -512,7 +512,7 @@ func TestPassesAnAllowedRequestToTheAppAndItsAnswerBack(t *testing.T) {
w.WriteHeader(http.StatusTeapot)
_, _ = io.WriteString(w, greeting)
})
addr, _ := startRProxy(t, standIn.URL, app.URL, nil)
addr, _ := startRProxy(t, servewaf.URL, app.URL, nil)
const target = pathGoReencodes + "?b=2&a=1&bad=%zz;x"
@@ -530,7 +530,7 @@ func TestPassesAnAllowedRequestToTheAppAndItsAnswerBack(t *testing.T) {
}
received := <-seen
asked := standIn.question(t)
asked := servewaf.question(t)
if received.RequestURI != target || received.Host != site {
t.Errorf("the app saw %s for %s", received.RequestURI, received.Host)
@@ -557,14 +557,14 @@ func TestAPeerNotTrustedHasItsForwardedHeadersReplaced(t *testing.T) {
"X-Forwarded-Tls-Client-Cert-Info", "X-Real-Ip",
}
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
seen := make(chan http.Header, 1)
app := startApp(t, func(w http.ResponseWriter, r *http.Request) {
seen <- r.Header.Clone()
greet(w, r)
})
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
trustedProxies: "10.0.0.0/8",
})
@@ -602,14 +602,14 @@ func TestAPeerNotTrustedHasItsForwardedHeadersReplaced(t *testing.T) {
func TestATrustedProxysForwardedHeadersPassOn(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
seen := make(chan http.Header, 1)
app := startApp(t, func(w http.ResponseWriter, r *http.Request) {
seen <- r.Header.Clone()
greet(w, r)
})
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
trustedProxies: localhost + "/32",
})
@@ -641,12 +641,12 @@ func TestATrustedProxysForwardedHeadersPassOn(t *testing.T) {
func TestAnAnswerWithoutAContentTypeGetsNone(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(w http.ResponseWriter, _ *http.Request) {
w.Header()["Content-Type"] = nil
_, _ = io.WriteString(w, "<html>")
})
_, _, server := startServer(t, standIn.URL, app.URL, nil)
_, _, server := startServer(t, servewaf.URL, app.URL, nil)
req := httptest.NewRequestWithContext(t.Context(), http.MethodGet, "/", http.NoBody)
w := httptest.NewRecorder()
@@ -704,11 +704,11 @@ func TestRemovesTheVisitorsLookupHeadersWhenServeWAFGivesNone(t *testing.T) {
func TestDenyGivesTheVisitorServeWAFsAnswer(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, deny)
servewaf := startServeWAF(t, deny)
app := startApp(t, func(http.ResponseWriter, *http.Request) {
t.Error("the app was asked")
})
addr, out := startRProxy(t, standIn.URL, app.URL, nil)
addr, out := startRProxy(t, servewaf.URL, app.URL, nil)
got := get(t, addr, "/")
if got.status != http.StatusForbidden || got.body != deniedBody ||
@@ -720,7 +720,7 @@ func TestDenyGivesTheVisitorServeWAFsAnswer(t *testing.T) {
t.Errorf("the visitor got %s", dispositionHeader)
}
report := standIn.report(t)
report := servewaf.report(t)
if report.Status != http.StatusForbidden ||
report.ResponseBytes != int64(len(deniedBody)) ||
report.DurationUpstreamTotal != 0 {
@@ -736,9 +736,9 @@ func TestDenyGivesTheVisitorServeWAFsAnswer(t *testing.T) {
func TestADeniedHeadKeepsServeWAFsContentLength(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, deny)
servewaf := startServeWAF(t, deny)
app := startApp(t, greet)
addr, _ := startRProxy(t, standIn.URL, app.URL, nil)
addr, _ := startRProxy(t, servewaf.URL, app.URL, nil)
got := visit(t, newRequest(t, http.MethodHead, addr, "/", http.NoBody))
if got.status != http.StatusForbidden ||
@@ -758,15 +758,15 @@ func TestAnAnswerRProxyHoldsWholeIsSentBeforeItsLogLine(t *testing.T) {
}{
{"a deny", "GET /" + host, deniedBody, http.StatusForbidden},
{"rproxy's own answer", "GET x:admin" + host, "Bad Request\n", http.StatusBadRequest},
{"the health check", "GET " + servewaf.HealthPath + host, "ok\n", http.StatusOK},
{"the health check", "GET " + proxy.HealthPath + host, "ok\n", http.StatusOK},
} {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
log := heldLog{release: make(chan struct{})}
standIn := startServeWAF(t, deny)
servewaf := startServeWAF(t, deny)
app := startApp(t, greet)
addr, _ := startServerLogging(t, standIn.URL, app.URL, nil, log, io.Discard)
addr, _ := startServerLogging(t, servewaf.URL, app.URL, nil, log, io.Discard)
t.Cleanup(func() { close(log.release) })
@@ -794,9 +794,9 @@ func TestAnAnswerRProxyHoldsWholeIsSentBeforeItsLogLine(t *testing.T) {
func TestRProxysOwnAnswerIsPlainText(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, _ := startRProxy(t, standIn.URL, app.URL, nil)
addr, _ := startRProxy(t, servewaf.URL, app.URL, nil)
conn := dial(t, addr)
send(t, conn, "GET x:admin HTTP/1.1\r\nHost: site.example\r\n\r\n")
@@ -817,14 +817,14 @@ func TestRProxysOwnAnswerIsPlainText(t *testing.T) {
func TestCloseClosesTheConnectionWithoutAnAnswer(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, func(w http.ResponseWriter, _ *http.Request) {
servewaf := startServeWAF(t, func(w http.ResponseWriter, _ *http.Request) {
w.Header().Set(dispositionHeader, dispositionClose)
w.WriteHeader(http.StatusOK)
})
app := startApp(t, func(http.ResponseWriter, *http.Request) {
t.Error("the app was asked")
})
addr, out := startRProxy(t, standIn.URL, app.URL, nil)
addr, out := startRProxy(t, servewaf.URL, app.URL, nil)
conn := dial(t, addr)
send(t, conn, "GET / HTTP/1.1\r\nHost: site.example\r\n\r\n")
@@ -835,7 +835,7 @@ func TestCloseClosesTheConnectionWithoutAnAnswer(t *testing.T) {
text, err)
}
report := standIn.report(t)
report := servewaf.report(t)
if report.Status != 0 || report.ResponseBytes != 0 {
t.Errorf("report %+v, of a visitor sent nothing", report)
}
@@ -935,7 +935,7 @@ func TestAnAnswerOtherThanAllowGoesToTheVisitorAsServeWAFGaveIt(t *testing.T) {
t.Run(tc.name+" with the default "+setting, func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, func(w http.ResponseWriter, _ *http.Request) {
servewaf := startServeWAF(t, func(w http.ResponseWriter, _ *http.Request) {
if tc.disposition != "" {
w.Header().Set(dispositionHeader, tc.disposition)
}
@@ -947,7 +947,7 @@ func TestAnAnswerOtherThanAllowGoesToTheVisitorAsServeWAFGaveIt(t *testing.T) {
app := startApp(t, func(http.ResponseWriter, *http.Request) {
t.Error("the app was asked")
})
addr, out := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, out := startRProxy(t, servewaf.URL, app.URL, map[string]string{
defaultDisposition: setting,
})
@@ -977,11 +977,11 @@ func TestAnAnswerOtherThanAllowGoesToTheVisitorAsServeWAFGaveIt(t *testing.T) {
func TestAnAnswerWithoutAValidDispositionGetsNoReport(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, func(w http.ResponseWriter, _ *http.Request) {
servewaf := startServeWAF(t, func(w http.ResponseWriter, _ *http.Request) {
http.Error(w, "refused", http.StatusBadRequest)
})
app := startApp(t, greet)
addr, out := startRProxy(t, standIn.URL, app.URL, nil)
addr, out := startRProxy(t, servewaf.URL, app.URL, nil)
if got := get(t, addr, "/"); got.status != http.StatusBadRequest {
t.Errorf("answered %+v, want servewaf's 400", got)
@@ -991,18 +991,18 @@ func TestAnAnswerWithoutAValidDispositionGetsNoReport(t *testing.T) {
t.Errorf("line %v, want no disposition", line)
}
standIn.wantNoReport(t)
servewaf.wantNoReport(t)
}
func TestAnAnswerWithoutAContentTypeGoesToTheVisitorWithNone(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, func(w http.ResponseWriter, _ *http.Request) {
servewaf := startServeWAF(t, func(w http.ResponseWriter, _ *http.Request) {
w.Header()["Content-Type"] = nil
w.WriteHeader(http.StatusInternalServerError)
_, _ = io.WriteString(w, "<html>broken")
})
addr, _ := startRProxy(t, standIn.URL, nowhere, nil)
addr, _ := startRProxy(t, servewaf.URL, nowhere, nil)
got := get(t, addr, "/")
if contentType, sent := got.header["Content-Type"]; sent {
@@ -1015,11 +1015,11 @@ func TestAnAnswerOf1MiBGoesToTheVisitor(t *testing.T) {
const size = 1 << 20
standIn := startServeWAF(t, func(w http.ResponseWriter, _ *http.Request) {
servewaf := startServeWAF(t, func(w http.ResponseWriter, _ *http.Request) {
w.WriteHeader(http.StatusInternalServerError)
_, _ = w.Write(make([]byte, size))
})
addr, _ := startRProxy(t, standIn.URL, nowhere, nil)
addr, _ := startRProxy(t, servewaf.URL, nowhere, nil)
got := get(t, addr, "/")
if got.status != http.StatusInternalServerError || len(got.body) != size {
@@ -1135,15 +1135,15 @@ func TestAnAnswerThatCannotBePassedOnIsAnswered502(t *testing.T) {
func TestAnAnswerThatCannotBePassedOnGetsNoReport(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, overOneMiB(dispositionDeny))
addr, out := startRProxy(t, standIn.URL, nowhere, nil)
servewaf := startServeWAF(t, overOneMiB(dispositionDeny))
addr, out := startRProxy(t, servewaf.URL, nowhere, nil)
if got := get(t, addr, "/"); got.status != http.StatusBadGateway {
t.Errorf("answered %+v, want 502", got)
}
out.requestLine(t)
standIn.wantNoReport(t)
servewaf.wantNoReport(t)
}
func TestWithoutAnAnswerTheDefaultDispositionDecides(t *testing.T) {
@@ -1199,20 +1199,20 @@ func TestAVisitorThatGoesAwayWhileServeWAFIsAskedGetsNoDefault(t *testing.T) {
t.Run("with the default "+disposition, func(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, func(_ http.ResponseWriter, r *http.Request) {
servewaf := startServeWAF(t, func(_ http.ResponseWriter, r *http.Request) {
<-r.Context().Done()
})
app := startApp(t, func(http.ResponseWriter, *http.Request) {
t.Error("the app was asked")
})
addr, out := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, out := startRProxy(t, servewaf.URL, app.URL, map[string]string{
timeoutSetting: "60000",
defaultDisposition: disposition,
})
conn := dial(t, addr)
send(t, conn, "GET / HTTP/1.1\r\nHost: site.example\r\n\r\n")
standIn.question(t)
servewaf.question(t)
_ = conn.Close()
@@ -1226,7 +1226,7 @@ func TestAVisitorThatGoesAwayWhileServeWAFIsAskedGetsNoDefault(t *testing.T) {
t.Error("rproxy warned that servewaf gave no answer")
}
standIn.wantNoReport(t)
servewaf.wantNoReport(t)
})
}
}
@@ -1244,17 +1244,17 @@ func TestRProxyWarnsWhenTheDefaultDecides(t *testing.T) {
func TestSendsNoReportWithoutAnAnswer(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, func(_ http.ResponseWriter, r *http.Request) {
servewaf := startServeWAF(t, func(_ http.ResponseWriter, r *http.Request) {
<-r.Context().Done()
})
app := startApp(t, greet)
addr, out := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, out := startRProxy(t, servewaf.URL, app.URL, map[string]string{
timeoutSetting: "200",
})
wantGreeting(t, get(t, addr, "/"))
out.requestLine(t)
standIn.wantNoReport(t)
servewaf.wantNoReport(t)
}
func TestAPathUnderOwnPrefixNeverReachesTheApp(t *testing.T) {
@@ -1274,25 +1274,25 @@ func TestAPathUnderOwnPrefixNeverReachesTheApp(t *testing.T) {
func TestHealthCheckIsAnsweredWhileServeWAFIsDown(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, out := startRProxy(t, nowhere, app.URL, nil)
got := get(t, addr, servewaf.HealthPath)
got := get(t, addr, proxy.HealthPath)
if got.status != http.StatusOK || got.body != "ok\n" {
t.Errorf("answered %+v, want ok", got)
}
line := out.requestLine(t)
if line["path"] != servewaf.HealthPath || line["disposition"] != nil {
if line["path"] != proxy.HealthPath || line["disposition"] != nil {
t.Errorf("line %v, want one with no disposition", line)
}
// With servewaf up too, it is not asked.
addr, _ = startRProxy(t, standIn.URL, app.URL, nil)
get(t, addr, servewaf.HealthPath)
addr, _ = startRProxy(t, servewaf.URL, app.URL, nil)
get(t, addr, proxy.HealthPath)
if len(standIn.questions) != 0 {
if len(servewaf.questions) != 0 {
t.Error("servewaf was asked about the health check")
}
}
@@ -1396,15 +1396,15 @@ func TestAReportAnswered101IsDroppedAtOnce(t *testing.T) {
func TestAReportDueAfterWaitForReportsIsDropped(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, out, server := startServer(t, standIn.URL, app.URL, nil)
addr, out, server := startServer(t, servewaf.URL, app.URL, nil)
server.WaitForReports()
wantGreeting(t, get(t, addr, "/"))
out.requestLine(t)
standIn.wantNoReport(t)
servewaf.wantNoReport(t)
}
func TestReportGivesWhatHappened(t *testing.T) {
@@ -1412,14 +1412,14 @@ func TestReportGivesWhatHappened(t *testing.T) {
const body = "the visitor's body"
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, out := startRProxy(t, standIn.URL, app.URL, nil)
addr, out := startRProxy(t, servewaf.URL, app.URL, nil)
wantGreeting(t, visit(t, newRequest(t, http.MethodPost, addr, "/",
strings.NewReader(body))))
report := standIn.report(t)
report := servewaf.report(t)
if report.RequestID == "" || report.Status != http.StatusOK ||
report.RequestBytes != int64(len(body)) ||
@@ -1442,7 +1442,7 @@ func TestWaitForReportsWaitsForAReportBeingSent(t *testing.T) {
release := make(chan struct{})
backend := httptest.NewServer(http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
if r.Header.Get(servewaf.ClientHeader) != "" {
if r.Header.Get(proxy.ClientHeader) != "" {
allow(w, r)
return
@@ -1497,9 +1497,9 @@ func TestWaitForReportsWaitsForAReportBeingSent(t *testing.T) {
func TestReportOfAWebSocketCountsWhatItCarried(t *testing.T) {
t.Parallel()
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, echoAfterUpgrade)
addr, out := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, out := startRProxy(t, servewaf.URL, app.URL, map[string]string{
maxRequestTime: "2000",
maxResponseTime: "2000",
})
@@ -1535,7 +1535,7 @@ func TestReportOfAWebSocketCountsWhatItCarried(t *testing.T) {
_ = conn.Close()
report := standIn.report(t)
report := servewaf.report(t)
if report.Status != http.StatusSwitchingProtocols ||
report.RequestBytes != int64(len(message)) ||
report.ResponseBytes != int64(len(message)) {
@@ -1552,7 +1552,7 @@ func TestAWebSocketPassesOnThatTheVisitorStoppedSending(t *testing.T) {
const goodbye = "sent after the visitor stopped sending\n"
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(w http.ResponseWriter, _ *http.Request) {
conn, buffered, err := http.NewResponseController(w).Hijack()
if err != nil {
@@ -1572,7 +1572,7 @@ func TestAWebSocketPassesOnThatTheVisitorStoppedSending(t *testing.T) {
_, _ = buffered.WriteString(goodbye)
_ = buffered.Flush()
})
addr, _ := startRProxy(t, standIn.URL, app.URL, nil)
addr, _ := startRProxy(t, servewaf.URL, app.URL, nil)
conn := dial(t, addr)
send(t, conn, "GET /socket HTTP/1.1\r\nHost: app\r\n"+
@@ -1610,7 +1610,7 @@ func TestAWebSocketPassesOnThatTheVisitorStoppedSending(t *testing.T) {
//nolint:paralleltest // see above
func TestASwitchNotPassedOnClosesTheAppsConnection(t *testing.T) {
closed := make(chan error, 1)
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, func(w http.ResponseWriter, _ *http.Request) {
conn, buffered, err := http.NewResponseController(w).Hijack()
if err != nil {
@@ -1633,7 +1633,7 @@ func TestASwitchNotPassedOnClosesTheAppsConnection(t *testing.T) {
_, err = buffered.ReadByte()
closed <- err
})
addr, _ := startRProxy(t, standIn.URL, app.URL, nil)
addr, _ := startRProxy(t, servewaf.URL, app.URL, nil)
conn := dial(t, addr)
send(t, conn, "GET /socket HTTP/1.1\r\nHost: app\r\n"+
@@ -1681,9 +1681,9 @@ func TestEachRequestGetsAFreshID(t *testing.T) {
const fromTraefik = "an-id-from-traefik"
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, _ := startRProxy(t, standIn.URL, app.URL, map[string]string{
addr, _ := startRProxy(t, servewaf.URL, app.URL, map[string]string{
trustedProxies: localhost + "/32",
})
@@ -1694,7 +1694,7 @@ func TestEachRequestGetsAFreshID(t *testing.T) {
req.Header.Set(requestIDHeader, fromTraefik)
wantGreeting(t, visit(t, req))
ids = append(ids, standIn.question(t).header.Get(requestIDHeader))
ids = append(ids, servewaf.question(t).header.Get(requestIDHeader))
}
if slices.Contains(ids, fromTraefik) || ids[0] == "" || ids[0] == ids[1] {
@@ -1711,16 +1711,16 @@ func TestLogLineGivesTheRequestAsSent(t *testing.T) {
body = "the visitor's body"
)
standIn := startServeWAF(t, allow)
servewaf := startServeWAF(t, allow)
app := startApp(t, greet)
addr, out := startRProxy(t, standIn.URL, app.URL, nil)
addr, out := startRProxy(t, servewaf.URL, app.URL, nil)
req := newRequest(t, http.MethodPost, addr, path+"?"+query, strings.NewReader(body))
req.Host = site
wantGreeting(t, visit(t, req))
line := out.requestLine(t)
asked := standIn.question(t)
asked := servewaf.question(t)
for name, want := range map[string]any{
"type": "request",
internal/rproxy/servewaf.go
+11 -11
View File
@@ -11,7 +11,7 @@ import (
"net/http"
"strings"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
"sneak.berlin/go/smallwebwaf/internal/proxy"
)
// answerBodyMaxBytes is the most of the body of servewaf's answer that is read.
@@ -38,10 +38,10 @@ type servewafAnswer struct {
// notes nothing, and no report is due for it: servewaf holds no decision to report
// on.
func (rq *request) noteAnswer(answer *servewafAnswer) {
disposition := answer.header.Get(servewaf.DispositionHeader)
disposition := answer.header.Get(proxy.DispositionHeader)
switch disposition {
case servewaf.DispositionAllow, servewaf.DispositionDeny, servewaf.DispositionClose:
case proxy.DispositionAllow, proxy.DispositionDeny, proxy.DispositionClose:
rq.disposition = disposition
rq.answered = true
rq.asn = answer.header.Get(asnHeader)
@@ -74,7 +74,7 @@ func (rq *request) handleNoUsableAnswer(ctx context.Context, err error) {
rq.disposition = rq.h.config.DefaultDisposition
rq.byDefault = true
if rq.disposition == servewaf.DispositionAllow {
if rq.disposition == proxy.DispositionAllow {
rq.passToApp(ctx)
} else {
rq.answer(http.StatusServiceUnavailable)
@@ -169,13 +169,13 @@ func (rq *request) newQuestion(ctx context.Context) (*http.Request, error) {
question.TransferEncoding = in.TransferEncoding
question.Header = in.Header.Clone()
question.Header.Set(servewaf.ClientHeader, rq.client.String())
question.Header.Set(servewaf.PeerHeader, rq.peer.String())
question.Header.Del(servewaf.ContentLengthHeader)
question.Header.Set(proxy.ClientHeader, rq.client.String())
question.Header.Set(proxy.PeerHeader, rq.peer.String())
question.Header.Del(proxy.ContentLengthHeader)
announced := in.Header.Get("Content-Length")
if announced != "" {
question.Header.Set(servewaf.ContentLengthHeader, announced)
question.Header.Set(proxy.ContentLengthHeader, announced)
}
question.Header.Set(requestIDHeader, rq.id)
@@ -196,7 +196,7 @@ func (rq *request) answerWith(answer *servewafAnswer) {
header := rq.out.Header()
maps.Copy(header, answer.header)
header.Del(servewaf.DispositionHeader)
header.Del(proxy.DispositionHeader)
// Go's server adds a Content-Type it guesses from the body to a response whose
// headers have no Content-Type key. The key with no value sends none.
@@ -210,7 +210,7 @@ func (rq *request) answerWith(answer *servewafAnswer) {
// sendReport sends servewaf report on a goroutine of its own, so that the
// visitor does not wait for it. The report goes on after ctx, the request's own
// context, has ended.
func (h *handler) sendReport(ctx context.Context, report *servewaf.Report) {
func (h *handler) sendReport(ctx context.Context, report *proxy.Report) {
h.reportsMu.Lock()
defer h.reportsMu.Unlock()
@@ -228,7 +228,7 @@ func (h *handler) sendReport(ctx context.Context, report *servewaf.Report) {
// postReport posts report to servewaf, and waits for its answer for up to
// SWRP_TIMEOUT_MS.
func (h *handler) postReport(ctx context.Context, report *servewaf.Report) error {
func (h *handler) postReport(ctx context.Context, report *proxy.Report) error {
body, err := json.Marshal(report)
if err != nil {
return fmt.Errorf("encode the report: %w", err)
internal/smallwebwaf/healthcheck.go
+2 -2
View File
@@ -11,7 +11,7 @@ import (
"time"
"sneak.berlin/go/smallwebwaf/internal/config"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
"sneak.berlin/go/smallwebwaf/internal/proxy"
)
// healthCheckTimeout bounds the whole health check.
@@ -107,7 +107,7 @@ func checkRProxyAndApp(
// listenAddr, which the settings have checked has one.
func askHealthEndpoint(ctx context.Context, listenAddr string) error {
_, port, _ := net.SplitHostPort(listenAddr)
health := "http://" + net.JoinHostPort("127.0.0.1", port) + servewaf.HealthPath
health := "http://" + net.JoinHostPort("127.0.0.1", port) + proxy.HealthPath
req, err := http.NewRequestWithContext(ctx, http.MethodGet, health, http.NoBody)
if err != nil {
internal/smallwebwaf/rproxy_test.go
+10 -10
View File
@@ -19,7 +19,7 @@ import (
"testing"
"time"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/smallwebwaf"
)
@@ -153,7 +153,7 @@ func TestABanThroughOneSiteRefusesTheClientOnTheOther(t *testing.T) {
// One request's three lines carry one id, rproxy's with servewaf's answer.
line := firstOut.line(t, "path", bannedProbe)
if line["disposition"] != servewaf.DispositionDeny || line["client_ip"] != placed {
if line["disposition"] != proxy.DispositionDeny || line["client_ip"] != placed {
t.Errorf("rproxy's line is %v", line)
}
@@ -225,7 +225,7 @@ func TestTheSiteAnswersWhileServeWAFIsStoppedAndStartedAgain(t *testing.T) {
wantStatus(t, site+"/after-stop", placed, http.StatusOK)
line := out.line(t, "path", "/after-stop")
if line["disposition"] != servewaf.DispositionAllow ||
if line["disposition"] != proxy.DispositionAllow ||
line["default_disposition"] != true {
t.Errorf("rproxy's line is %v", line)
}
@@ -318,7 +318,7 @@ func TestAChunkedBodyStaysABodyAtServeWAF(t *testing.T) {
const smuggledID = "smuggled-request"
smuggled := "GET " + bannedProbe + " HTTP/1.1\r\nHost: site.example\r\n" +
servewaf.ClientHeader + ": " + otherClient + "\r\n" +
proxy.ClientHeader + ": " + otherClient + "\r\n" +
"X-Request-ID: " + smuggledID + "\r\n\r\n"
status := sendRaw(t, site, "POST /upload HTTP/1.1\r\nHost: site.example\r\n"+
@@ -459,10 +459,10 @@ func TestRProxyAsksAServeWAFThatSpeaksHTTP2OverHTTP1(t *testing.T) {
protocols := make(chan string, 10)
backend := httptest.NewUnstartedServer(http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
if r.Header.Get(servewaf.ClientHeader) != "" {
if r.Header.Get(proxy.ClientHeader) != "" {
protocols <- r.Proto
w.Header().Set(servewaf.DispositionHeader, servewaf.DispositionDeny)
w.Header().Set(proxy.DispositionHeader, proxy.DispositionDeny)
w.WriteHeader(http.StatusForbidden)
}
}))
@@ -532,8 +532,8 @@ func TestRProxyStoppingWaitsForAReportBeingSent(t *testing.T) {
release := make(chan struct{})
backend := httptest.NewServer(http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
if r.Header.Get(servewaf.ClientHeader) != "" {
w.Header().Set(servewaf.DispositionHeader, servewaf.DispositionAllow)
if r.Header.Get(proxy.ClientHeader) != "" {
w.Header().Set(proxy.DispositionHeader, proxy.DispositionAllow)
return
}
@@ -640,7 +640,7 @@ func TestRProxyStoppingCutsOffARequestAfterFiveSeconds(t *testing.T) {
backend := httptest.NewServer(http.HandlerFunc(
func(w http.ResponseWriter, _ *http.Request) {
w.Header().Set(servewaf.DispositionHeader, servewaf.DispositionAllow)
w.Header().Set(proxy.DispositionHeader, proxy.DispositionAllow)
}))
t.Cleanup(backend.Close)
@@ -757,7 +757,7 @@ func TestMainRunsRProxy(t *testing.T) {
addr, cmd, out := startRProxyProcess(t, wafBackend+"=http://127.0.0.1:9")
req, err := http.NewRequestWithContext(t.Context(), http.MethodGet,
"http://"+addr+servewaf.HealthPath, http.NoBody)
"http://"+addr+proxy.HealthPath, http.NoBody)
if err != nil {
t.Fatalf("new request: %v", err)
}
internal/smallwebwaf/servewaf_test.go
+8 -8
View File
@@ -14,7 +14,7 @@ import (
"testing"
"time"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/smallwebwaf"
)
@@ -67,7 +67,7 @@ func TestMainRunsServeWAF(t *testing.T) {
})
addr, _ := out.line(t, "msg", "starting")["address"].(string)
ask(t, addr, "/", http.StatusOK, servewaf.DispositionAllow)
ask(t, addr, "/", http.StatusOK, proxy.DispositionAllow)
err = cmd.Process.Signal(syscall.SIGTERM)
if err != nil {
@@ -132,7 +132,7 @@ func ask(t *testing.T, addr, path string, status int, disposition string) {
t.Fatalf("new request: %v", err)
}
req.Header.Set(servewaf.ClientHeader, placed)
req.Header.Set(proxy.ClientHeader, placed)
req.Header.Set("X-Request-ID", rand.Text())
transport := &http.Transport{}
@@ -147,9 +147,9 @@ func ask(t *testing.T, addr, path string, status int, disposition string) {
_ = res.Body.Close()
if res.StatusCode != status ||
res.Header.Get(servewaf.DispositionHeader) != disposition {
res.Header.Get(proxy.DispositionHeader) != disposition {
t.Errorf("answered %d with disposition %q, want %d with %q", res.StatusCode,
res.Header.Get(servewaf.DispositionHeader), status, disposition)
res.Header.Get(proxy.DispositionHeader), status, disposition)
}
}
@@ -193,12 +193,12 @@ func TestServeWAFKeepsItsBansAcrossARestartAndNeedsNoApp(t *testing.T) {
}
runServeWAF(t, env, func(addr string) {
ask(t, addr, "/", http.StatusOK, servewaf.DispositionAllow)
ask(t, addr, "/", http.StatusOK, proxy.DispositionAllow)
// The default rule file bans a probe for this.
ask(t, addr, "/.env", http.StatusForbidden, servewaf.DispositionDeny)
ask(t, addr, "/.env", http.StatusForbidden, proxy.DispositionDeny)
})
runServeWAF(t, env, func(addr string) {
ask(t, addr, "/", http.StatusForbidden, servewaf.DispositionDeny)
ask(t, addr, "/", http.StatusForbidden, proxy.DispositionDeny)
})
}
internal/smallwebwaf/smallwebwaf.go
+8 -17
View File
@@ -23,13 +23,12 @@ import (
"sneak.berlin/go/smallwebwaf/internal/alerts"
"sneak.berlin/go/smallwebwaf/internal/config"
"sneak.berlin/go/smallwebwaf/internal/lookup"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/remotelog"
"sneak.berlin/go/smallwebwaf/internal/reputation"
"sneak.berlin/go/smallwebwaf/internal/requestlog"
"sneak.berlin/go/smallwebwaf/internal/rules"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
"sneak.berlin/go/smallwebwaf/internal/state"
"sneak.berlin/go/smallwebwaf/internal/waf"
)
// shutdownTimeout is how long requests in progress may take to finish
@@ -151,14 +150,7 @@ func RunServeWAF(ctx context.Context, params Params) int {
return 1
}
crs, err := servewaf.NewCoreRuleSet(cfg)
if err != nil {
processLog.Error("cannot use the Core Rule Set", "error", err.Error())
return 1
}
server, err := newServer(cfg, stdout, processLog, now, ruleFiles, alertQueue, crs)
server, err := newServer(cfg, stdout, processLog, now, ruleFiles, alertQueue)
if err != nil {
processLog.Error("cannot use the lookup database", "error", err.Error())
@@ -178,7 +170,8 @@ func RunServeWAF(ctx context.Context, params Params) int {
listener, err := (&net.ListenConfig{}).Listen(ctx, "tcp", cfg.ListenAddr)
if err != nil {
processLog.Error("cannot listen on SWWAF_LISTEN_ADDR", "error", err.Error())
processLog.Error("cannot listen on SWWAF_LISTEN_ADDR",
"error", err.Error())
return 1
}
@@ -197,8 +190,7 @@ func RunServeWAF(ctx context.Context, params Params) int {
func newServer(
cfg *config.Config, stdout io.Writer, processLog *slog.Logger,
now func() time.Time, ruleFiles *rules.Files, alertQueue *alerts.Queue,
crs *waf.CoreRuleSet,
) (*servewaf.Server, error) {
) (*proxy.Server, error) {
var lookupFile *lookup.File
if cfg.LookupSource == "file" {
@@ -215,14 +207,13 @@ func newServer(
}
}
server := servewaf.New(servewaf.Params{
server := proxy.NewServeWAF(proxy.Params{
Config: cfg,
RequestLog: stdout,
ProcessLog: processLog,
GeoJSURL: lookup.URL,
AbuseIPDBURL: reputation.AbuseIPDBURL,
LookupFile: lookupFile,
CoreRuleSet: crs,
Now: now,
Rules: ruleFiles,
Alerts: alertQueue,
@@ -239,7 +230,7 @@ func newServer(
// loadStateFiles reads the state files into the parts of server and into
// alertQueue, as state.Load does.
func loadStateFiles(
cfg *config.Config, server *servewaf.Server, alertQueue *alerts.Queue,
cfg *config.Config, server *proxy.Server, alertQueue *alerts.Queue,
now func() time.Time, processLog *slog.Logger,
) (*state.Files, error) {
return state.Load(state.Params{
@@ -325,7 +316,7 @@ func startSending(
// shutdownTimeout to finish, and writes every state file, alerts.json with
// the alerts still waiting.
func serve(
ctx context.Context, server *servewaf.Server, listener net.Listener,
ctx context.Context, server *proxy.Server, listener net.Listener,
files *state.Files, ruleFiles *rules.Files, alertQueue *alerts.Queue,
processLog *slog.Logger,
) int {
internal/smallwebwaf/smallwebwaf_test.go
+5 -28
View File
@@ -20,7 +20,7 @@ import (
"time"
"sneak.berlin/go/smallwebwaf/internal/lookup/lookuptest"
"sneak.berlin/go/smallwebwaf/internal/servewaf"
"sneak.berlin/go/smallwebwaf/internal/proxy"
"sneak.berlin/go/smallwebwaf/internal/smallwebwaf"
)
@@ -551,29 +551,6 @@ func TestRulesDirThatDoesNotExistStopsTheStart(t *testing.T) {
": no such file or directory")
}
func TestCoreRuleSetExclusionsFileThatCannotBeReadStopsTheStart(t *testing.T) {
t.Parallel()
path := filepath.Join(t.TempDir(), "crs-exclusions.conf")
out := &output{}
status := run(t.Context(), map[string]string{
listenAddr: localhost + ":0", stateDir: t.TempDir(), rulesDir: t.TempDir(),
"SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE": path,
}, out)
if status != 1 {
t.Fatalf("exit status %d, want 1", status)
}
line := out.line(t, "msg", "cannot use the Core Rule Set")
want := "SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE: read the exclusions file: open " +
path + ": no such file or directory"
if line["error"] != want {
t.Errorf("start refused with %v, want the error %q", line, want)
}
}
func TestLookupDatabaseReplacedWhileRunningTakesEffect(t *testing.T) {
t.Parallel()
@@ -1248,9 +1225,9 @@ func wantStartingLine(t *testing.T, line map[string]any, dir string) {
"SWWAF_ALLOW_NETS": "",
rateLimitExemptNets: "",
"SWWAF_DENY_NETS": "",
"SWWAF_RATE_LIMIT_PER_MINUTE": "120",
"SWWAF_RATE_LIMIT_PER_HOUR": "1500",
rateLimitPerDay: "6000",
"SWWAF_RATE_LIMIT_PER_MINUTE": "500",
"SWWAF_RATE_LIMIT_PER_HOUR": "20000",
rateLimitPerDay: "300000",
"SWWAF_RATE_LIMIT_EXEMPT_PATHS": "",
"SWWAF_DENIED_COUNTRIES": "",
"SWWAF_EXCLUSIVELY_ALLOWED_COUNTRIES": "",
@@ -1650,7 +1627,7 @@ func statusFrom(t *testing.T, url, from string) int {
}
req.Header.Set("X-Forwarded-For", from)
req.Header.Set(servewaf.ClientHeader, from)
req.Header.Set(proxy.ClientHeader, from)
req.Header.Set("X-Request-ID", rand.Text())
transport := &http.Transport{}
internal/waf/testdata/gitea-requests.txt
Vendored
-288
View File
@@ -1,288 +0,0 @@
# Ordinary gitea requests, one path and query per line, that the Core Rule Set
# must let through with deploy/gitea/crs-exclusions.conf. The tests of
# internal/waf inspect each, and script/gitea-setup sends each to gitea through
# the setup.
# Searches with ordinary words and symbols.
/owner/repo/search?q=package.json
/owner/repo/search?q=.gitignore
/owner/repo/search?q=docker-compose.yml
/owner/repo/search?q=python3
/owner/repo/search?q=ssh%20key
/owner/repo/search?q=feat%2Fdocker-support
/owner/repo/search?q=ls%20-la
/owner/repo/search?q=sed%20-i
/owner/repo/search?q=%2Fbin%2Fsh
/owner/repo/search?q=%60make%20check%60
/owner/repo/search?q=%60whoami%60
/owner/repo/search?q=fetch%28
/owner/repo/search?q=%24%7BVAR%7D
/owner/repo/search?q=%24%28pwd%29
/owner/repo/search?q=process.env
/owner/repo/search?q=%3Cimg%20src%3D
/owner/repo/search?q=%3Cscript%3E
/owner/repo/search?q=SELECT%20%2A%20FROM%20users%20WHERE
/owner/repo/search?q=union%20select
/owner/repo/search?q=http%3A%2F%2F127.0.0.1%3A8080
/owner/repo/search?q=..%2F
/owner/repo/search?q=%2Fetc%2Fpasswd
/owner/repo/search?q=eval%28
/owner/repo/search?q=chmod%20%2Bx
/owner/repo/search?q=echo%20%24PATH
/owner/repo/search?q=java.lang.Runtime
/owner/repo/search?q=document.cookie
/owner/repo/search?q=alert%281%29
/owner/repo/search?q=__proto__
/owner/repo/search?q=C%3A%5CWindows%5CSystem32
/owner/repo/search?q=Invoke-WebRequest
/owner/repo/search?q=if%20%28a%20%3D%3D%20b%29%20%7B
/owner/repo/search?q=sudo%20apt%20install
/owner/repo/search?q=~%2F.ssh%2Fconfig
/owner/repo/search?q=.htaccess
/explore/repos?q=SELECT%20%2A%20FROM%20users%20WHERE
/explore/repos?q=%3Cimg%20src%3D
/explore/code?q=SELECT%20%2A%20FROM%20users%20WHERE
/explore/code?q=%3Cimg%20src%3D
/owner/repo/issues?type=all&state=open&q=SELECT%20%2A%20FROM%20users%20WHERE
/owner/repo/issues?type=all&state=open&q=%3Cimg%20src%3D
/owner/repo/pulls?q=SELECT%20%2A%20FROM%20users%20WHERE
/owner/repo/pulls?q=%3Cimg%20src%3D
/issues?type=your_repositories&q=SELECT%20%2A%20FROM%20users%20WHERE
/issues?type=your_repositories&q=%3Cimg%20src%3D
/owner/repo/commits/branch/main/search?q=SELECT%20%2A%20FROM%20users%20WHERE
/owner/repo/commits/branch/main/search?q=%3Cimg%20src%3D
/owner/repo/wiki/search?q=SELECT%20%2A%20FROM%20users%20WHERE
/owner/repo/wiki/search?q=%3Cimg%20src%3D
/owner/repo/branches?q=SELECT%20%2A%20FROM%20users%20WHERE
/owner/repo/branches?q=%3Cimg%20src%3D
/owner/repo/releases?q=SELECT%20%2A%20FROM%20users%20WHERE
/owner/repo/releases?q=%3Cimg%20src%3D
/owner/-/packages?q=SELECT%20%2A%20FROM%20users%20WHERE
/owner/-/packages?q=%3Cimg%20src%3D
/user/search?q=SELECT%20%2A%20FROM%20users%20WHERE
/user/search?q=%3Cimg%20src%3D
/api/v1/repos/search?q=SELECT%20%2A%20FROM%20users%20WHERE
/api/v1/repos/search?q=%3Cimg%20src%3D
/api/v1/repos/issues/search?q=SELECT%20%2A%20FROM%20users%20WHERE
/api/v1/repos/issues/search?q=%3Cimg%20src%3D
/api/v1/repos/owner/repo/issues?q=SELECT%20%2A%20FROM%20users%20WHERE
/api/v1/repos/owner/repo/issues?q=%3Cimg%20src%3D
# Pages, raw files and edit pages of files, and the API's call for their
# contents.
/owner/repo/src/branch/main/package.json
/owner/repo/raw/branch/main/package.json
/owner/repo/_edit/main/package.json
/api/v1/repos/owner/repo/contents/package.json
/owner/repo/src/branch/main/.gitignore
/owner/repo/raw/branch/main/.gitignore
/owner/repo/_edit/main/.gitignore
/api/v1/repos/owner/repo/contents/.gitignore
/owner/repo/src/branch/main/docker-compose.yml
/owner/repo/raw/branch/main/docker-compose.yml
/owner/repo/_edit/main/docker-compose.yml
/api/v1/repos/owner/repo/contents/docker-compose.yml
/owner/repo/src/branch/main/Dockerfile
/owner/repo/raw/branch/main/Dockerfile
/owner/repo/_edit/main/Dockerfile
/api/v1/repos/owner/repo/contents/Dockerfile
/owner/repo/src/branch/main/.htaccess
/owner/repo/raw/branch/main/.htaccess
/owner/repo/_edit/main/.htaccess
/api/v1/repos/owner/repo/contents/.htaccess
/owner/repo/src/branch/main/rootfs/etc/passwd
/owner/repo/raw/branch/main/rootfs/etc/passwd
/owner/repo/_edit/main/rootfs/etc/passwd
/api/v1/repos/owner/repo/contents/rootfs/etc/passwd
/owner/repo/src/branch/main/bin/docker-entrypoint
/owner/repo/raw/branch/main/bin/docker-entrypoint
/owner/repo/_edit/main/bin/docker-entrypoint
/api/v1/repos/owner/repo/contents/bin/docker-entrypoint
/owner/repo/src/branch/main/scripts/python3-setup.sh
/owner/repo/raw/branch/main/scripts/python3-setup.sh
/owner/repo/_edit/main/scripts/python3-setup.sh
/api/v1/repos/owner/repo/contents/scripts/python3-setup.sh
/owner/repo/src/branch/main/src/java.base/share/classes/java/lang/Runtime.java
/owner/repo/raw/branch/main/src/java.base/share/classes/java/lang/Runtime.java
/owner/repo/_edit/main/src/java.base/share/classes/java/lang/Runtime.java
/api/v1/repos/owner/repo/contents/src/java.base/share/classes/java/lang/Runtime.java
/owner/repo/src/branch/main/java.lang.String.md
/owner/repo/raw/branch/main/java.lang.String.md
/owner/repo/_edit/main/java.lang.String.md
/api/v1/repos/owner/repo/contents/java.lang.String.md
/owner/repo/src/branch/main/META-INF/services/org.apache.commons.logging.LogFactory
/owner/repo/raw/branch/main/META-INF/services/org.apache.commons.logging.LogFactory
/owner/repo/_edit/main/META-INF/services/org.apache.commons.logging.LogFactory
/api/v1/repos/owner/repo/contents/META-INF/services/org.apache.commons.logging.LogFactory
/owner/repo/src/branch/main/process.env.d.ts
/owner/repo/raw/branch/main/process.env.d.ts
/owner/repo/_edit/main/process.env.d.ts
/api/v1/repos/owner/repo/contents/process.env.d.ts
/owner/repo/src/branch/main/document.write.js
/owner/repo/raw/branch/main/document.write.js
/owner/repo/_edit/main/document.write.js
/api/v1/repos/owner/repo/contents/document.write.js
/owner/repo/src/branch/main/test/fixtures/__proto__.json
/owner/repo/raw/branch/main/test/fixtures/__proto__.json
/owner/repo/_edit/main/test/fixtures/__proto__.json
/api/v1/repos/owner/repo/contents/test/fixtures/__proto__.json
/owner/repo/src/branch/main/install-script.sh
/owner/repo/raw/branch/main/install-script.sh
/owner/repo/_edit/main/install-script.sh
/api/v1/repos/owner/repo/contents/install-script.sh
/owner/repo/src/branch/main/src/backend/catalog/information_schema.sql
/owner/repo/raw/branch/main/src/backend/catalog/information_schema.sql
/owner/repo/_edit/main/src/backend/catalog/information_schema.sql
/api/v1/repos/owner/repo/contents/src/backend/catalog/information_schema.sql
/owner/repo/src/branch/main/docs/a%20b.xhtml
/owner/repo/raw/branch/main/docs/a%20b.xhtml
/owner/repo/_edit/main/docs/a%20b.xhtml
/api/v1/repos/owner/repo/contents/docs/a%20b.xhtml
/owner/repo/src/branch/main/%5Bdraft%5D.md
/owner/repo/raw/branch/main/%5Bdraft%5D.md
/owner/repo/_edit/main/%5Bdraft%5D.md
/api/v1/repos/owner/repo/contents/%5Bdraft%5D.md
# File names in the query string: the commit graph of a file, the API's lists
# of its commits and of its contents, an issue opened from a template, and the
# sign-in page on the way to its edit page.
/owner/repo/graph?file=package.json
/api/v1/repos/owner/repo/commits?path=package.json
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22package.json%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2Fpackage.json
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2Fpackage.json
/owner/repo/graph?file=.gitignore
/api/v1/repos/owner/repo/commits?path=.gitignore
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22.gitignore%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2F.gitignore
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2F.gitignore
/owner/repo/graph?file=docker-compose.yml
/api/v1/repos/owner/repo/commits?path=docker-compose.yml
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22docker-compose.yml%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2Fdocker-compose.yml
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2Fdocker-compose.yml
/owner/repo/graph?file=.htaccess
/api/v1/repos/owner/repo/commits?path=.htaccess
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22.htaccess%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2F.htaccess
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2F.htaccess
/owner/repo/graph?file=rootfs%2Fetc%2Fpasswd
/api/v1/repos/owner/repo/commits?path=rootfs%2Fetc%2Fpasswd
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22rootfs%2Fetc%2Fpasswd%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2Frootfs%2Fetc%2Fpasswd
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2Frootfs%2Fetc%2Fpasswd
/owner/repo/graph?file=bin%2Fdocker-entrypoint
/api/v1/repos/owner/repo/commits?path=bin%2Fdocker-entrypoint
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22bin%2Fdocker-entrypoint%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2Fbin%2Fdocker-entrypoint
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2Fbin%2Fdocker-entrypoint
/owner/repo/graph?file=scripts%2Fpython3-setup.sh
/api/v1/repos/owner/repo/commits?path=scripts%2Fpython3-setup.sh
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22scripts%2Fpython3-setup.sh%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2Fscripts%2Fpython3-setup.sh
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2Fscripts%2Fpython3-setup.sh
/owner/repo/graph?file=src%2Fjava.base%2Fshare%2Fclasses%2Fjava%2Flang%2FRuntime.java
/api/v1/repos/owner/repo/commits?path=src%2Fjava.base%2Fshare%2Fclasses%2Fjava%2Flang%2FRuntime.java
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22src%2Fjava.base%2Fshare%2Fclasses%2Fjava%2Flang%2FRuntime.java%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2Fsrc%2Fjava.base%2Fshare%2Fclasses%2Fjava%2Flang%2FRuntime.java
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2Fsrc%2Fjava.base%2Fshare%2Fclasses%2Fjava%2Flang%2FRuntime.java
/owner/repo/graph?file=java.lang.String.md
/api/v1/repos/owner/repo/commits?path=java.lang.String.md
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22java.lang.String.md%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2Fjava.lang.String.md
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2Fjava.lang.String.md
/owner/repo/graph?file=META-INF%2Fservices%2Forg.apache.commons.logging.LogFactory
/api/v1/repos/owner/repo/commits?path=META-INF%2Fservices%2Forg.apache.commons.logging.LogFactory
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22META-INF%2Fservices%2Forg.apache.commons.logging.LogFactory%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2FMETA-INF%2Fservices%2Forg.apache.commons.logging.LogFactory
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2FMETA-INF%2Fservices%2Forg.apache.commons.logging.LogFactory
/owner/repo/graph?file=process.env.d.ts
/api/v1/repos/owner/repo/commits?path=process.env.d.ts
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22process.env.d.ts%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2Fprocess.env.d.ts
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2Fprocess.env.d.ts
/owner/repo/graph?file=document.write.js
/api/v1/repos/owner/repo/commits?path=document.write.js
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22document.write.js%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2Fdocument.write.js
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2Fdocument.write.js
/owner/repo/graph?file=test%2Ffixtures%2F__proto__.json
/api/v1/repos/owner/repo/commits?path=test%2Ffixtures%2F__proto__.json
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22test%2Ffixtures%2F__proto__.json%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2Ftest%2Ffixtures%2F__proto__.json
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2Ftest%2Ffixtures%2F__proto__.json
/owner/repo/graph?file=install-script.sh
/api/v1/repos/owner/repo/commits?path=install-script.sh
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22install-script.sh%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2Finstall-script.sh
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2Finstall-script.sh
/owner/repo/graph?file=src%2Fbackend%2Fcatalog%2Finformation_schema.sql
/api/v1/repos/owner/repo/commits?path=src%2Fbackend%2Fcatalog%2Finformation_schema.sql
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22src%2Fbackend%2Fcatalog%2Finformation_schema.sql%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2Fsrc%2Fbackend%2Fcatalog%2Finformation_schema.sql
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2Fsrc%2Fbackend%2Fcatalog%2Finformation_schema.sql
/owner/repo/graph?file=docs%2Fa%20b.xhtml
/api/v1/repos/owner/repo/commits?path=docs%2Fa%20b.xhtml
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22docs%2Fa%20b.xhtml%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2Fdocs%2Fa%20b.xhtml
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2Fdocs%2Fa%20b.xhtml
/owner/repo/graph?file=%5Bdraft%5D.md
/api/v1/repos/owner/repo/commits?path=%5Bdraft%5D.md
/api/v1/repos/owner/repo/file-contents?body=%7B%22files%22%3A%5B%22%5Bdraft%5D.md%22%5D%7D
/owner/repo/issues/new?template=.gitea%2FISSUE_TEMPLATE%2F%5Bdraft%5D.md
/user/login?redirect_to=%2Fowner%2Frepo%2F_edit%2Fmain%2F%5Bdraft%5D.md
# Branch and tag names in the query string: deleting a branch, starting a
# release from a tag, a branch protection rule, a directory listing's last
# commits, and a container image push that reuses a layer.
/owner/repo/branches?name=docker-build
/owner/repo/releases/new?tag=docker-build
/owner/repo/settings/branches/edit?rule_name=docker-build
/owner/repo/lastcommit/main/src?refSubUrl=branch%2Fdocker-build
/v2/owner/app/blobs/uploads/?mount=sha256%3A0000&from=owner%2Fdocker-build
/owner/repo/branches?name=feat%2Fdocker-support
/owner/repo/releases/new?tag=feat%2Fdocker-support
/owner/repo/settings/branches/edit?rule_name=feat%2Fdocker-support
/owner/repo/lastcommit/main/src?refSubUrl=branch%2Ffeat%2Fdocker-support
/v2/owner/app/blobs/uploads/?mount=sha256%3A0000&from=owner%2Ffeat%2Fdocker-support
/owner/repo/branches?name=renovate%2Fdocker-build-push-action-6.x
/owner/repo/releases/new?tag=renovate%2Fdocker-build-push-action-6.x
/owner/repo/settings/branches/edit?rule_name=renovate%2Fdocker-build-push-action-6.x
/owner/repo/lastcommit/main/src?refSubUrl=branch%2Frenovate%2Fdocker-build-push-action-6.x
/v2/owner/app/blobs/uploads/?mount=sha256%3A0000&from=owner%2Frenovate%2Fdocker-build-push-action-6.x
/owner/repo/branches?name=python3-migration
/owner/repo/releases/new?tag=python3-migration
/owner/repo/settings/branches/edit?rule_name=python3-migration
/owner/repo/lastcommit/main/src?refSubUrl=branch%2Fpython3-migration
/v2/owner/app/blobs/uploads/?mount=sha256%3A0000&from=owner%2Fpython3-migration
/owner/repo/branches?name=ansible-roles
/owner/repo/releases/new?tag=ansible-roles
/owner/repo/settings/branches/edit?rule_name=ansible-roles
/owner/repo/lastcommit/main/src?refSubUrl=branch%2Fansible-roles
/v2/owner/app/blobs/uploads/?mount=sha256%3A0000&from=owner%2Fansible-roles
/owner/repo/branches?name=whoami
/owner/repo/releases/new?tag=whoami
/owner/repo/settings/branches/edit?rule_name=whoami
/owner/repo/lastcommit/main/src?refSubUrl=branch%2Fwhoami
/v2/owner/app/blobs/uploads/?mount=sha256%3A0000&from=owner%2Fwhoami
# Pages a signed-in user opens.
/
/owner/repo
/owner/repo/issues
/owner/repo/pulls
/owner/repo/releases
/owner/repo/wiki
/owner/repo/activity
/owner/repo/branches
/owner/repo/tags
/owner/repo/settings
/owner/repo/actions
/owner/repo/compare/main...main
/owner/repo/commits/branch/main
/owner/repo/archive/main.zip
/notifications
/user/settings
/user/settings/applications
/explore/repos
/-/admin
internal/waf/waf.go
+12 -51
View File
@@ -1,9 +1,8 @@
// Package waf runs the OWASP Core Rule Set 4.25.0, through Coraza, on the
// method, the URL with its query and the headers of a request, and on its
// body while SWWAF_WAF_BODY_LIMIT is set, with the seven changes smallwebwaf
// makes to it and the exclusions in SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE, as
// "Attack detection" under "Settings" in SPEC.md describes them. It reads no
// response.
// body while SWWAF_WAF_BODY_LIMIT is set, with the six changes smallwebwaf
// makes to it, as "Attack detection" under "Settings" in SPEC.md describes
// them. It reads no response.
//
// smallwebwaf writes only to its state directory, so Coraza is built with
// its no_fs_access tag, as the Dockerfile and script/build build it: of a
@@ -12,13 +11,10 @@
package waf
import (
"errors"
"fmt"
"io"
"net/http"
"net/netip"
"os"
"regexp"
"slices"
"strconv"
"strings"
@@ -33,9 +29,9 @@ import (
// paranoia level for %d, and bodyDirectives for %s while
// SWWAF_WAF_BODY_LIMIT is set. Each rule smallwebwaf adds has an id from
// 900000 to 900999, the ids the Core Rule Set keeps for the rules that set
// it up, which SWWAF_WAF_DISABLED_RULES and the exclusions file refuse, so
// that no setting switches one off. Coraza joins a line ending in \ to the
// next, without the spaces at the start of the next.
// it up, which SWWAF_WAF_DISABLED_RULES refuses, so that no setting
// switches one off. Coraza joins a line ending in \ to the next, without
// the spaces at the start of the next.
const directives = `
# The engine only detects. smallwebwaf compares the request's anomaly
# score with SWWAF_WAF_ANOMALY_THRESHOLD itself, in block and detect mode
@@ -104,13 +100,6 @@ SecRuleUpdateTargetById 932260 "!ARGS:path|!ARGS:files|!ARGS:skip-to|\
# Inspect.
SecRuleUpdateTargetById 932340 "!REQUEST_HEADERS:Referer"
SecRuleUpdateTargetById 944110 "!REQUEST_HEADERS:Referer"
# The seventh: a container image push that reuses a layer names the image
# it takes the layer from in the query parameter from, which is not
# checked for command names. 932260 refused the push of a layer from
# owner/python3-app.
SecRule REQUEST_FILENAME "@rx ^/v2/.+/blobs/uploads/$" \
"id:900500,phase:1,pass,nolog,ctl:ruleRemoveTargetById=932260;ARGS:from"
`
// bodyDirectives have the Core Rule Set read the part of a request body
@@ -171,20 +160,8 @@ type Params struct {
// BodyLimit is the most of a request body the Core Rule Set reads
// (SWWAF_WAF_BODY_LIMIT), 0 while it is off and it reads none.
BodyLimit int64
// ExclusionsFile is the path of a file of exclusions loaded after the
// rest (SWWAF_CORE_RULE_SET_EXCLUSIONS_FILE), "" while there is none.
ExclusionsFile string
}
// smallwebwafRuleID matches an id from 900000 to 900999, which an
// exclusions file may not name: those are the ids of smallwebwaf's own
// rules.
var smallwebwafRuleID = regexp.MustCompile(`\b900\d{3}\b`)
// errSmallwebwafRuleID is the error of an exclusions file that names an
// id of smallwebwaf's own rules.
var errSmallwebwafRuleID = errors.New("an id of smallwebwaf's own rules")
// CoreRuleSet is the Core Rule Set, ready to inspect requests. It is safe
// for concurrent use.
type CoreRuleSet struct {
@@ -192,11 +169,9 @@ type CoreRuleSet struct {
bodyLimit int64
}
// New returns the Core Rule Set with the seven changes, at params'
// paranoia level, without the rules it switches off, reading request
// bodies up to params' limit, and with params' exclusions file loaded
// last. An exclusions file that cannot be read, does not parse or names
// an id of smallwebwaf's own rules is an error.
// New returns the Core Rule Set with the six changes, at params'
// paranoia level, without the rules it switches off, and reading request
// bodies up to params' limit.
func New(params Params) (*CoreRuleSet, error) {
body := ""
if params.BodyLimit > 0 {
@@ -214,23 +189,9 @@ func New(params Params) (*CoreRuleSet, error) {
text += "SecRuleRemoveById " + strings.Join(ids, " ") + "\n"
}
config := coraza.NewWAFConfig().WithRootFS(coreruleset.FS).WithDirectives(text)
if params.ExclusionsFile != "" {
exclusions, err := os.ReadFile(params.ExclusionsFile)
if err != nil {
return nil, fmt.Errorf("read the exclusions file: %w", err)
}
if id := smallwebwafRuleID.Find(exclusions); id != nil {
return nil, fmt.Errorf("the exclusions file names %s: %w", id,
errSmallwebwafRuleID)
}
config = config.WithDirectives(string(exclusions))
}
waf, err := coraza.NewWAF(config)
waf, err := coraza.NewWAF(coraza.NewWAFConfig().
WithRootFS(coreruleset.FS).
WithDirectives(text))
if err != nil {
return nil, fmt.Errorf("load the Core Rule Set: %w", err)
}
internal/waf/waf_test.go
+1 -122
View File
@@ -5,7 +5,6 @@ import (
"net/http/httptest"
"net/netip"
"net/url"
"os"
"path/filepath"
"reflect"
"strconv"
@@ -120,7 +119,7 @@ func atDefaults(t *testing.T) *waf.CoreRuleSet {
}
// wantChange checks that crs lets through passes, a gitea request one of
// the seven changes is for, and still finds result in refused, a request
// the six changes is for, and still finds result in refused, a request
// like it that the change is not for.
func wantChange(
t *testing.T, crs *waf.CoreRuleSet, passes, refused request, result waf.Result,
@@ -363,126 +362,6 @@ func TestEachDisabledRuleIsSwitchedOff(t *testing.T) {
wantResult(t, newCoreRuleSet(t, 1, 920350, 911100), r, waf.Result{})
}
func TestImagePushThatReusesALayerIsNotCheckedForCommandNames(t *testing.T) {
t.Parallel()
crs := atDefaults(t)
reuse := "?mount=sha256:0000&from=owner/python3-app"
wantChange(t, crs, get("/v2/owner/app/blobs/uploads/"+reuse), get("/upload/"+reuse),
matched(932260))
// A command after the image's name is still refused.
wantResult(t, crs,
get("/v2/owner/app/blobs/uploads/?from=owner/app;cat%20/etc/passwd"),
matched(930120, 932160))
}
// withExclusions returns the Core Rule Set at the defaults, with the
// exclusions file at path.
func withExclusions(path string) (*waf.CoreRuleSet, error) {
return waf.New(waf.Params{
ParanoiaLevel: 1, DisabledRules: defaultDisabledRules, ExclusionsFile: path,
})
}
// exclusionsFile writes text to a file of exclusions and returns its path.
func exclusionsFile(t *testing.T, text string) string {
t.Helper()
path := filepath.Join(t.TempDir(), "exclusions.conf")
err := os.WriteFile(path, []byte(text), 0o600)
if err != nil {
t.Fatal(err)
}
return path
}
func TestExclusionsFileIsLoadedAfterTheCoreRuleSet(t *testing.T) {
t.Parallel()
crs, err := withExclusions(exclusionsFile(t,
"SecRuleUpdateTargetById 942100 \"!ARGS:id\"\n"))
if err != nil {
t.Fatalf("load the exclusions: %v", err)
}
wantChange(t, crs, get("/?id=1'%20OR%20'1'='1"), get("/?q=1'%20OR%20'1'='1"),
matched(942100))
}
func TestExclusionsFileThatCannotBeUsedIsAnError(t *testing.T) {
t.Parallel()
for _, path := range []string{
filepath.Join(t.TempDir(), "missing.conf"),
exclusionsFile(t, "SecNoSuchDirective On\n"),
// smallwebwaf's own rules may not be switched off or changed.
exclusionsFile(t, "SecRuleRemoveById 900300\n"),
exclusionsFile(t, "SecRuleUpdateTargetById 900500 \"!ARGS:x\"\n"),
} {
_, err := withExclusions(path)
if err == nil {
t.Errorf("%s loaded", path)
}
}
}
// giteaRequests returns the targets of the recorded ordinary gitea requests
// in testdata, which script/gitea-setup sends too.
func giteaRequests(t *testing.T) []string {
t.Helper()
text, err := os.ReadFile(filepath.Join("testdata", "gitea-requests.txt"))
if err != nil {
t.Fatal(err)
}
var targets []string
for line := range strings.Lines(string(text)) {
line = strings.TrimSpace(line)
if line != "" && !strings.HasPrefix(line, "#") {
targets = append(targets, line)
}
}
return targets
}
func TestGiteaExclusionsLetOrdinaryGiteaRequestsThroughAndRefuseAttacks(t *testing.T) {
t.Parallel()
crs, err := withExclusions(filepath.Join("..", "..", "deploy", "gitea",
"crs-exclusions.conf"))
if err != nil {
t.Fatalf("load gitea's exclusions: %v", err)
}
const threshold = 5 // SWWAF_WAF_ANOMALY_THRESHOLD's default
// Each with the Referer of a page that names the same, as a page
// opened from it has.
for _, target := range giteaRequests(t) {
r := get(target, "Referer: http://git.example"+target)
if got := inspect(t, crs, r); got.Score >= threshold {
t.Errorf("%s refused: %+v", target, got)
}
}
for _, attack := range []string{
"/owner/repo?id=1'%20OR%20'1'='1",
"/owner/repo?id=..%2Fcustom%2Fconf%2Fapp.ini",
"/owner/repo?id=%3Cscript%3Ealert(1)%3C%2Fscript%3E",
} {
if got := inspect(t, crs, get(attack)); got.Score < threshold {
t.Errorf("%s let through: %+v", attack, got)
}
}
}
// bodyLimit is SWWAF_WAF_BODY_LIMIT in the tests that read bodies.
const bodyLimit = 8 << 10
script/gitea-requests
+1 -2
View File
@@ -4,8 +4,7 @@
# default but these: SWRP_UPSTREAM_URL names gitea's container, SWRP_WAF_BACKEND
# names servewaf's, and SWWAF_LOG_REQUEST_HEADERS adds the header that labels a
# request. Then send through rproxy the gitea requests that reading gitea's
# source found the Core Rule Set refuses without the exclusions in
# deploy/gitea/crs-exclusions.conf, and a
# source found the Core Rule Set refuses, which docs/gitea.md records, and a
# short sample of gitea's ordinary use: signing in, pages of files and commits,
# a diff, the API, a push, clone and fetch over HTTP, and two container image
# pushes. Last, print each request servewaf logged, with what it did with it and
script/gitea-setup
-286
View File
@@ -1,286 +0,0 @@
#!/bin/sh
# script/gitea-setup: build the image, bring up deploy/gitea under a project
# name of its own, and check it:
# - that a page load, a push and a clone sent through traefik pass through
# rproxy, and that servewaf checks them;
# - that gitea logs the visitor's address, not rproxy's;
# - that a request from a container on the shared network skips the checks;
# - that the Core Rule Set refuses none of the ordinary gitea requests in
# internal/waf/testdata/gitea-requests.txt, nor a fetch, nor API calls with
# JSON bodies;
# - that it refuses SQL injection, path traversal and script injection in a
# query string;
# - that with servewaf stopped, gitea still answers through rproxy.
# It publishes no port of traefik's, since this host's ports 80 and 443 may be
# taken. It reaches traefik at its address on the shared network instead, so
# its own requests come from the network's gateway, which servewaf checks like
# any visitor. Two runs at once on one docker host cannot both start, since
# both would use the subnet compose.yaml names. The containers, the network,
# the volumes, the image and the files the script makes are removed however it
# ends; the gitea and traefik images stay, as the base images of a build do.
# It needs network access. script/check does not run this.
set -eu
SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd -P)"
ROOT="$(cd "$SCRIPT_DIR/.." && pwd -P)"
# Named after this run, so that runs in other clones on the same host
# never touch each other's.
NAME="$("$SCRIPT_DIR/projectname")-gitea-setup-$$"
IMAGE="$NAME-image"
NETWORK="${NAME}_shared"
VISITOR="$NAME-visitor"
# The site's host name and gitea's image, as deploy/gitea/compose.yaml names
# them. gitea's image also runs the container on the shared network.
SITE="git.example.org"
# gitea 1.27.3, 2026-08-29
GITEA_IMAGE="gitea/gitea@sha256:87a67ee09d3ae0d1df5fda5dcda3e2a1f9236a45b0a59025d6e00e46adc43bef"
# gitea's one user, who owns the repository.
PASSWORD="owner-password"
# The files the script makes, gitea's secret key for this run, and traefik's
# and the gateway's addresses on the shared network once the setup runs.
WORK=""
secret_key=""
traefik=""
gateway=""
cleanup() {
# So that a signal cannot stop it partway through.
trap '' HUP INT TERM
docker rm --force "$VISITOR" >/dev/null 2>&1 || true
if [ -n "$WORK" ]; then
compose down --volumes --remove-orphans --timeout 5 >/dev/null 2>&1 || true
rm -rf "$WORK"
fi
docker rmi --force "$IMAGE" >/dev/null 2>&1 || true
}
# compose <argument>...: docker compose on the setup, under this run's project
# name, with the image built here, this run's secret key and no port of
# traefik's published.
compose() {
SMALLWEBWAF_IMAGE="$IMAGE" GITEA_SECRET_KEY="$secret_key" \
docker compose --project-name "$NAME" \
--file "$ROOT/deploy/gitea/compose.yaml" --file "$WORK/no-ports.yaml" "$@"
}
fail() {
echo "gitea-setup: $*; the last lines of each container's output:" >&2
compose logs --no-color --tail 30 >&2 || true
exit 1
}
# wait_for <what fails> <command>...: run the command every second until
# it succeeds, for at most a minute.
wait_for() {
failure="$1"
shift
tries=0
until "$@"; do
tries=$((tries + 1))
[ "$tries" -lt 60 ] || fail "$failure"
sleep 1
done
}
# logged <service> <text>...: a line of the service's output holds every text,
# in any order.
logged() {
lines="$(compose logs --no-color --no-log-prefix "$1" 2>&1)"
shift
for text in "$@"; do
lines="$(printf '%s\n' "$lines" | grep -F -e "$text")" || return 1
done
}
# send <path> <curl option>...: send a request for path to the site, at
# traefik's address, and print the status of the answer, 000 for none. traefik
# answers with a certificate it made itself, since the setup names no
# certificate resolver.
send() {
path="$1"
shift
curl --silent --show-error --insecure --max-time 30 --output /dev/null \
--write-out '%{http_code}' --resolve "$SITE:443:$traefik" "$@" \
"https://$SITE$path" || true
}
# routed: traefik passes a request for the site's front page on to gitea.
routed() {
[ "$(send / 2>/dev/null)" = 200 ]
}
# site_git <git argument>...: run git as the owner, without the host's own git
# settings, reaching the site at traefik's address. git gives up on a transfer
# slower than 1000 bytes a second for 30 seconds.
site_git() {
GIT_CONFIG_GLOBAL=/dev/null GIT_CONFIG_NOSYSTEM=1 git \
-c user.name=owner -c user.email=owner@example.invalid \
-c http.sslVerify=false -c "http.curloptResolve=$SITE:443:$traefik" \
-c http.lowSpeedLimit=1000 -c http.lowSpeedTime=30 "$@"
}
# address_of <service>: print the service's address on the shared network.
address_of() {
docker inspect --format "{{(index .NetworkSettings.Networks \"$NETWORK\").IPAddress}}" \
"$(compose ps --quiet "$1")"
}
# passed_through <method> <path>: rproxy passed a request from the gateway for
# path to gitea on servewaf's allow, and servewaf checked it: its report line
# gives the client's counts and the Core Rule Set's score.
passed_through() {
wait_for "rproxy logged no $1 $2 that servewaf allowed" logged rproxy \
"\"method\":\"$1\"" "\"path\":\"$2\"" "\"client_ip\":\"$gateway\"" \
'"disposition":"allow"'
wait_for "servewaf logged no check of $1 $2" logged servewaf \
'"servewaf_line":"report"' "\"method\":\"$1\"" "\"path\":\"$2\"" \
"\"client_ip\":\"$gateway\"" '"action":"forward"' '"counts":' '"waf_score":'
}
# refused: print each request servewaf logged as refused, for any reason.
refused() {
compose logs --no-color --no-log-prefix servewaf 2>&1 |
grep -F '"servewaf_line":"report"' | grep -v -F '"action":"forward"' || true
}
# ordinary_requests: sign in as the owner, save a file and open an issue
# through the API with JSON bodies, then send, signed in, each request in
# internal/waf/testdata/gitea-requests.txt, with that request's own address as
# its Referer, as a page opened from it has. One a second keeps them under the
# default limit of 120 requests a minute, since a request refused for a limit is
# never inspected. Fail if servewaf refuses any of them.
ordinary_requests() {
send /user/login --cookie-jar "$WORK/cookies" >/dev/null
status="$(send /user/login --cookie "$WORK/cookies" --cookie-jar "$WORK/cookies" \
--header "Origin: https://$SITE" --data-urlencode user_name=owner \
--data-urlencode "password=$PASSWORD")"
[ "$status" = 303 ] || fail "signing in was answered $status"
content="$(printf 'declare const env: Record<string, string>;\n' | base64)"
status="$(send /api/v1/repos/owner/repo/contents/process.env.d.ts \
--user "owner:$PASSWORD" --header "Content-Type: application/json" \
--data "{\"message\":\"Add process.env.d.ts\",\"content\":\"$content\"}")"
[ "$status" = 201 ] || fail "saving a file through the API was answered $status"
status="$(send /api/v1/repos/owner/repo/issues --user "owner:$PASSWORD" \
--header "Content-Type: application/json" \
--data '{"title":"ls -la fails","body":"SELECT * FROM users; <img src=x>"}')"
[ "$status" = 201 ] || fail "opening an issue through the API was answered $status"
grep -v -e '^#' -e '^$' "$ROOT/internal/waf/testdata/gitea-requests.txt" |
while IFS= read -r target; do
send "$target" --globoff --cookie "$WORK/cookies" \
--header "Referer: https://$SITE$target" >/dev/null
sleep 1
done
# The last request's report is logged once its answer has ended.
send /api/v1/settings/api >/dev/null
wait_for "servewaf logged no report of the last ordinary request" logged servewaf \
'"servewaf_line":"report"' '"path":"/api/v1/settings/api"'
refusals="$(refused)"
[ -z "$refusals" ] || fail "servewaf refused ordinary requests:
$refusals"
}
# attacks: send SQL injection, path traversal and script injection in a query
# string, and fail unless the Core Rule Set refuses each.
attacks() {
# The traversal climbs one directory: the default rule file refuses two or
# more first, before the Core Rule Set runs.
for query in "id=1'%20OR%20'1'%3D'1" "id=..%2Fcustom%2Fconf%2Fapp.ini" \
"id=%3Cscript%3Ealert(1)%3C%2Fscript%3E"; do
status="$(send "/owner/repo?$query")"
[ "$status" = 403 ] || fail "the attack ?$query was answered $status"
wait_for "servewaf logged no refusal of ?$query" logged servewaf \
'"servewaf_line":"report"' '"action":"waf_blocked"' "\"query\":\"$query\""
done
}
main() {
cd "$ROOT"
trap cleanup EXIT
trap 'exit 1' HUP INT TERM
WORK="$(mktemp -d)"
printf 'services:\n traefik:\n ports: !reset []\n' >"$WORK/no-ports.yaml"
docker build --no-cache -t "$IMAGE" .
secret_key="$(docker run --rm "$GITEA_IMAGE" gitea generate secret SECRET_KEY)"
# rproxy is healthy once gitea takes connections.
compose up --detach --quiet-pull --wait --wait-timeout 120 ||
fail "the setup did not start"
traefik="$(address_of traefik)"
gateway="$(docker network inspect --format '{{(index .IPAM.Config 0).Gateway}}' "$NETWORK")"
wait_for "traefik did not route the site to rproxy" routed
compose exec --user git gitea gitea admin user create --admin \
--username owner --password "$PASSWORD" --email owner@example.invalid \
--must-change-password=false >/dev/null || fail "creating gitea's user failed"
status="$(send /api/v1/user/repos --user "owner:$PASSWORD" \
--header "Content-Type: application/json" --data '{"name":"repo"}')"
[ "$status" = 201 ] || fail "creating the repository was answered $status"
status="$(send /owner/repo)"
[ "$status" = 200 ] || fail "the repository's page was answered $status"
passed_through GET /owner/repo
echo "gitea-setup: a page load passes through rproxy, and servewaf checks it"
wait_for "gitea did not log the visitor's address" logged gitea \
"GET /owner/repo for $gateway:"
echo "gitea-setup: gitea logs the visitor's address, not rproxy's"
site_git init --quiet --initial-branch=main "$WORK/repo"
echo "hello" >"$WORK/repo/README.md"
site_git -C "$WORK/repo" add README.md
site_git -C "$WORK/repo" commit --quiet --message "Add a README"
site_git -C "$WORK/repo" push --quiet \
"https://owner:$PASSWORD@$SITE/owner/repo.git" main ||
fail "the push failed"
passed_through POST /owner/repo.git/git-receive-pack
echo "gitea-setup: a push passes through rproxy, and servewaf checks it"
site_git clone --quiet "https://owner:$PASSWORD@$SITE/owner/repo.git" \
"$WORK/clone" || fail "the clone failed"
[ "$(cat "$WORK/clone/README.md")" = hello ] || fail "the clone lacks the README"
passed_through POST /owner/repo.git/git-upload-pack
echo "gitea-setup: a clone passes through rproxy, and servewaf checks it"
# A container on the shared network, as sandcastle is, asks for the site
# by its name, and so reaches traefik from its own address.
status="$(docker run --rm --name "$VISITOR" --network "$NETWORK" \
--entrypoint curl "$GITEA_IMAGE" --silent --insecure --max-time 30 \
--output /dev/null --write-out '%{http_code}' "https://$SITE/api/v1/version" ||
true)"
[ "$status" = 200 ] || fail "the request from the shared network was answered $status"
wait_for "servewaf logged no request from the shared network" logged servewaf \
'"servewaf_line":"report"' '"path":"/api/v1/version"' '"action":"forward"'
line="$(compose logs --no-color --no-log-prefix servewaf |
grep -F '"servewaf_line":"report"' | grep -F '"path":"/api/v1/version"')"
case "$line" in
*"\"client_ip\":\"$gateway\""*)
fail "the request from the shared network came from the gateway" ;;
*'"counts":'* | *'"waf_score":'*)
fail "servewaf checked the request from the shared network" ;;
esac
echo "gitea-setup: a request from the shared network skips the checks"
site_git -C "$WORK/clone" fetch --quiet || fail "the fetch failed"
ordinary_requests
echo "gitea-setup: the Core Rule Set refuses no ordinary gitea request"
attacks
echo "gitea-setup: the Core Rule Set refuses the attacks"
compose stop servewaf >/dev/null 2>&1 || fail "servewaf did not stop"
status="$(send /owner/repo)"
[ "$status" = 200 ] ||
fail "with servewaf stopped, the repository's page was answered $status"
wait_for "rproxy logged no request SWRP_DEFAULT_DISPOSITION decided" \
logged rproxy '"path":"/owner/repo"' '"default_disposition":true'
echo "gitea-setup: with servewaf stopped, gitea answers through rproxy"
}
main "$@"