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Add Blossom bandwidth limiting and tune rate limiters (v0.49.0)
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- Add token-bucket bandwidth rate limiting for Blossom uploads
  - ORLY_BLOSSOM_RATE_LIMIT enables limiting (default: false)
  - ORLY_BLOSSOM_DAILY_LIMIT_MB sets daily limit (default: 10MB)
  - ORLY_BLOSSOM_BURST_LIMIT_MB sets burst cap (default: 50MB)
  - Followed users, admins, owners are exempt (unlimited)
- Change emergency mode throttling from exponential to linear scaling
  - Old: 16x multiplier at emergency threshold entry
  - New: 1x at threshold, +1x per 20% excess pressure
- Reduce follows ACL throttle increment from 200ms to 25ms per event
- Update dependencies

Files modified:
- app/blossom.go: Pass rate limit config to blossom server
- app/config/config.go: Add Blossom rate limit config options
- pkg/blossom/ratelimit.go: New bandwidth limiter implementation
- pkg/blossom/server.go: Add rate limiter integration
- pkg/blossom/handlers.go: Check rate limits on upload/mirror/media
- pkg/ratelimit/limiter.go: Linear emergency throttling
- pkg/acl/follows.go: Reduce default throttle increment

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
woikos
2026-01-14 08:09:39 +01:00
parent 205f23fc0c
commit 9da1784b1b
17 changed files with 321 additions and 44 deletions
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7
app/config/config.go
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@@ -69,13 +69,18 @@ type C struct {
// Progressive throttle for follows ACL mode - allows non-followed users to write with increasing delay
FollowsThrottleEnabled bool `env:"ORLY_FOLLOWS_THROTTLE" default:"false" usage:"enable progressive delay for non-followed users in follows ACL mode"`
FollowsThrottlePerEvent time.Duration `env:"ORLY_FOLLOWS_THROTTLE_INCREMENT" default:"200ms" usage:"delay added per event for non-followed users"`
FollowsThrottlePerEvent time.Duration `env:"ORLY_FOLLOWS_THROTTLE_INCREMENT" default:"25ms" usage:"delay added per event for non-followed users"`
FollowsThrottleMaxDelay time.Duration `env:"ORLY_FOLLOWS_THROTTLE_MAX" default:"60s" usage:"maximum throttle delay cap"`
// Blossom blob storage service settings
BlossomEnabled bool `env:"ORLY_BLOSSOM_ENABLED" default:"true" usage:"enable Blossom blob storage server (only works with Badger backend)"`
BlossomServiceLevels string `env:"ORLY_BLOSSOM_SERVICE_LEVELS" usage:"comma-separated list of service levels in format: name:storage_mb_per_sat_per_month (e.g., basic:1,premium:10)"`
// Blossom upload rate limiting (for non-followed users)
BlossomRateLimitEnabled bool `env:"ORLY_BLOSSOM_RATE_LIMIT" default:"false" usage:"enable upload rate limiting for non-followed users"`
BlossomDailyLimitMB int64 `env:"ORLY_BLOSSOM_DAILY_LIMIT_MB" default:"10" usage:"daily upload limit in MB for non-followed users (EMA averaged)"`
BlossomBurstLimitMB int64 `env:"ORLY_BLOSSOM_BURST_LIMIT_MB" default:"50" usage:"max burst upload in MB (bucket cap)"`
// Web UI and dev mode settings
WebDisableEmbedded bool `env:"ORLY_WEB_DISABLE" default:"false" usage:"disable serving the embedded web UI; useful for hot-reload during development"`
WebDevProxyURL string `env:"ORLY_WEB_DEV_PROXY_URL" usage:"when ORLY_WEB_DISABLE is true, reverse-proxy non-API paths to this dev server URL (e.g. http://localhost:5173)"`