The previous rework removed web/dist/ from git tracking (correct) but
did not add a web-builder stage to the Dockerfile. This caused
//go:embed dist/* in web/embed.go to fail with 'no matching files found'.
Add the 4-stage Dockerfile layout:
1. web-builder: compile Preact JSX SPA via esbuild
2. lint: format checking and linting with placeholder dist files
3. builder: compile Go binaries with real web assets from web-builder
4. runtime: minimal Alpine image with neoircd binary
Also update README to document the 4-stage build.
Add SHA-256-based hashcash proof-of-work requirement to POST /session
to prevent abuse via rapid session creation. The server advertises the
required difficulty via GET /server (hashcash_bits field), and clients
must include a valid stamp in the X-Hashcash request header.
Server-side:
- New internal/hashcash package with stamp validation (format, bits,
date, resource, replay prevention via in-memory spent set)
- Config: NEOIRC_HASHCASH_BITS env var (default 20, set 0 to disable)
- GET /server includes hashcash_bits when > 0
- POST /session validates X-Hashcash header when enabled
- Returns HTTP 402 for missing/invalid stamps
Client-side:
- SPA: fetches hashcash_bits from /server, computes stamp using Web
Crypto API with batched SHA-256, shows 'Computing proof-of-work...'
feedback during computation
- CLI: api package gains MintHashcash() function, CreateSession()
auto-fetches server info and computes stamp when required
Stamp format: 1:bits:YYMMDD:resource::counter (standard hashcash)
closes sneak/chat#11
Migration 003 created tables with INTEGER keys referencing TEXT primary
keys from migration 002, causing 'no such column' errors. Fix by
properly dropping old tables before recreating with the integer schema.
Rewrite all tests to use the queries.go API (which matches the live
schema) instead of the model-based API (which expected the old UUID
schema).
CreateUser, GetUserByNick, GetUserByToken exist in both db.go (model-based,
used by tests) and queries.go (simple, used by handlers). Rename the
model-based variants to CreateUserModel, GetUserByNickModel, and
GetUserByTokenModel to resolve the compilation error.
clawbot