mix
5e5d157496
A bounce could be recorded as a successful delivery. The log-tailer's Fixed: - A bounce could be recorded as a successful delivery. The log-tailer's - Log-tailer resumes where it stopped instead of jumping to end-of-file on - Level-2 rate limit no longer overshoots under concurrency: messages that Changed: - The project has a single public home: `github.com/mixeme/selfpost`. Codeberg - Code comments no longer cite the archived specification. References like - `docs/code-review.md` is gone. Its plan is finished — phases 0 (bar the - `docs/architecture.md` gained a *Code layers* section: a diagram of - Phase 1 doc/code hygiene (`docs/code-review.md`): removed ~30 stale … (1 more in CHANGELOG) Security: - Pre-release security review (plan § D, model Fable, 2026-08-06): full pass - `saslpasswd2` argv: the application login is now passed after a `--` Added: - Optional password encryption for the two secret-bearing downloads (plan - Domain import accepts an encrypted export: the envelope is detected by its - `selfpost-backup` writes encrypted archives and reads them back: - `TestParseDelivery` covers the exotic mail.log shapes the review asked for - docs: README *Encrypting a backup or export*; `docs/security.md` § … (14 more in CHANGELOG) Removed: - docs: `security.md` — accepted risk «restore old backup revives session rows» Changed: - docs: `implementation-plan.md` trimmed to the sole open v1.x gate — pre-release - docs: `architecture.md` — sessions (SQLite, idle renew, password change), - docs: `development.md` — expanded e2e stack and `release.yml` matrix workflow. - docs: `security.md` — accepted risk for send-log rows stuck at `queued` after - docs: `roadmap.md` — optional send-log / `mail.log` follow-ups under v1.x tail. … (10 more in CHANGELOG) Full detail: CHANGELOG.md (0.5.0).
63 lines
1.4 KiB
Go
63 lines
1.4 KiB
Go
package web
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import (
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"sync"
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"time"
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)
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// rateLimiter is a simple fixed-window per-key counter used to throttle the
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// setup and login routes (security.md). Keys are client IPs. It is not a
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// precise sliding window — a coarse backstop against brute-force and log noise
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// is all these routes need.
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type rateLimiter struct {
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max int
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window time.Duration
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mu sync.Mutex
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buckets map[string]*rlBucket
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}
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type rlBucket struct {
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count int
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windowEnds time.Time
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}
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func newRateLimiter(max int, window time.Duration) *rateLimiter {
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return &rateLimiter{
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max: max,
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window: window,
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buckets: make(map[string]*rlBucket),
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}
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}
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// Allow records an attempt for key and reports whether it is within the limit.
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// The current window is reset lazily once it elapses.
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func (r *rateLimiter) Allow(key string) bool {
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now := time.Now()
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r.mu.Lock()
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defer r.mu.Unlock()
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b := r.buckets[key]
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if b == nil || now.After(b.windowEnds) {
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r.buckets[key] = &rlBucket{count: 1, windowEnds: now.Add(r.window)}
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r.sweep(now)
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return true
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}
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if b.count >= r.max {
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return false
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}
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b.count++
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return true
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}
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// sweep drops expired buckets so the map cannot grow without bound. Called
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// under the lock while a window is being reset, which is often enough given the
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// low request volume of these routes.
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func (r *rateLimiter) sweep(now time.Time) {
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for k, b := range r.buckets {
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if now.After(b.windowEnds) {
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delete(r.buckets, k)
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}
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}
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}
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