mirror of
https://github.com/elyby/chrly.git
synced 2024-08-25 06:10:01 +05:30
191 lines
6.2 KiB
Go
191 lines
6.2 KiB
Go
package eventsubscribers
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import (
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"net/http"
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"strings"
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"sync"
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"time"
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"github.com/mono83/slf"
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"github.com/elyby/chrly/api/mojang"
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"github.com/elyby/chrly/dispatcher"
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)
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type StatsReporter struct {
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Reporter slf.StatsReporter
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Prefix string
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timersMap sync.Map
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}
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func (s *StatsReporter) ConfigureWithDispatcher(d dispatcher.EventDispatcher) {
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// Per request events
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d.Subscribe("skinsystem:before_request", s.handleBeforeRequest)
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d.Subscribe("skinsystem:after_request", s.handleAfterRequest)
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// Authentication events
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d.Subscribe("authenticator:success", s.incCounterHandler("authentication.challenge")) // TODO: legacy, remove in v5
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d.Subscribe("authenticator:success", s.incCounterHandler("authentication.success"))
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d.Subscribe("authentication:error", s.incCounterHandler("authentication.challenge")) // TODO: legacy, remove in v5
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d.Subscribe("authentication:error", s.incCounterHandler("authentication.failed"))
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// Mojang signed textures source events
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d.Subscribe("mojang_textures:call", s.incCounterHandler("mojang_textures.request"))
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d.Subscribe("mojang_textures:usernames:after_cache", func(username string, uuid string, err error) {
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if err != nil {
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return
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}
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if uuid == "" {
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s.incCounter("mojang_textures:usernames:cache_hit_nil")
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} else {
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s.incCounter("mojang_textures:usernames:cache_hit")
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}
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})
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d.Subscribe("mojang_textures:textures:after_cache", func(uuid string, textures *mojang.SignedTexturesResponse, err error) {
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if err != nil {
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return
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}
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if textures != nil {
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s.incCounter("mojang_textures.textures.cache_hit")
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}
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})
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d.Subscribe("mojang_textures:already_processing", s.incCounterHandler("mojang_textures.already_scheduled"))
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d.Subscribe("mojang_textures:usernames:after_call", func(username string, profile *mojang.ProfileInfo, err error) {
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if err != nil {
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return
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}
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if profile == nil {
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s.incCounter("mojang_textures.usernames.uuid_miss")
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} else {
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s.incCounter("mojang_textures.usernames.uuid_hit")
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}
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})
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d.Subscribe("mojang_textures:textures:before_call", s.incCounterHandler("mojang_textures.textures.request"))
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d.Subscribe("mojang_textures:textures:after_call", func(uuid string, textures *mojang.SignedTexturesResponse, err error) {
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if err != nil {
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return
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}
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if textures == nil {
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s.incCounter("mojang_textures.usernames.textures_miss")
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} else {
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s.incCounter("mojang_textures.usernames.textures_hit")
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}
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})
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d.Subscribe("mojang_textures:before_result", func(username string, uuid string) {
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s.startTimeRecording("mojang_textures_result_time_" + username)
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})
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d.Subscribe("mojang_textures:after_result", func(username string, textures *mojang.SignedTexturesResponse, err error) {
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s.finalizeTimeRecording("mojang_textures_result_time_"+username, "mojang_textures.result_time")
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})
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d.Subscribe("mojang_textures:textures:before_call", func(uuid string) {
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s.startTimeRecording("mojang_textures_provider_time_" + uuid)
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})
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d.Subscribe("mojang_textures:textures:after_call", func(uuid string, textures *mojang.SignedTexturesResponse, err error) {
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s.finalizeTimeRecording("mojang_textures_provider_time_"+uuid, "mojang_textures.textures.request_time")
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})
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// Mojang UUIDs batch provider metrics
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d.Subscribe("mojang_textures:batch_uuids_provider:queued", s.incCounterHandler("mojang_textures.usernames.queued"))
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d.Subscribe("mojang_textures:batch_uuids_provider:round", func(usernames []string, queueSize int) {
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s.updateGauge("mojang_textures.usernames.iteration_size", int64(len(usernames)))
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s.updateGauge("mojang_textures.usernames.queue_size", int64(queueSize))
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})
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d.Subscribe("mojang_textures:batch_uuids_provider:before_round", func() {
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s.startTimeRecording("batch_uuids_provider_round_time")
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})
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d.Subscribe("mojang_textures:batch_uuids_provider:after_round", func() {
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s.finalizeTimeRecording("batch_uuids_provider_round_time", "mojang_textures.usernames.round_time")
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})
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}
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func (s *StatsReporter) handleBeforeRequest(req *http.Request) {
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var key string
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m := req.Method
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p := req.URL.Path
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if p == "/skins" {
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key = "skins.get_request"
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} else if strings.HasPrefix(p, "/skins/") {
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key = "skins.request"
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} else if p == "/cloaks" {
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key = "capes.get_request"
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} else if strings.HasPrefix(p, "/cloaks/") {
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key = "capes.request"
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} else if strings.HasPrefix(p, "/textures/signed/") {
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key = "signed_textures.request"
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} else if strings.HasPrefix(p, "/textures/") {
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key = "textures.request"
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} else if m == http.MethodPost && p == "/api/skins" {
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key = "api.skins.post.request"
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} else if m == http.MethodDelete && strings.HasPrefix(p, "/api/skins/") {
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key = "api.skins.delete.request"
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} else {
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return
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}
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s.incCounter(key)
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}
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func (s *StatsReporter) handleAfterRequest(req *http.Request, code int) {
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var key string
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m := req.Method
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p := req.URL.Path
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if m == http.MethodPost && p == "/api/skins" && code == http.StatusCreated {
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key = "api.skins.post.success"
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} else if m == http.MethodPost && p == "/api/skins" && code == http.StatusBadRequest {
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key = "api.skins.post.validation_failed"
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} else if m == http.MethodDelete && strings.HasPrefix(p, "/api/skins/") && code == http.StatusNoContent {
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key = "api.skins.delete.success"
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} else if m == http.MethodDelete && strings.HasPrefix(p, "/api/skins/") && code == http.StatusNotFound {
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key = "api.skins.delete.not_found"
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} else {
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return
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}
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s.incCounter(key)
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}
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func (s *StatsReporter) incCounterHandler(name string) func(...interface{}) {
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return func(...interface{}) {
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s.incCounter(name)
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}
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}
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func (s *StatsReporter) startTimeRecording(timeKey string) {
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s.timersMap.Store(timeKey, time.Now())
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}
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func (s *StatsReporter) finalizeTimeRecording(timeKey string, statName string) {
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startedAtUncasted, ok := s.timersMap.Load(timeKey)
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if !ok {
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return
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}
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startedAt, ok := startedAtUncasted.(time.Time)
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if !ok {
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panic("unable to cast map value to the time.Time")
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}
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s.recordTimer(statName, time.Since(startedAt))
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}
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func (s *StatsReporter) incCounter(name string) {
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s.Reporter.IncCounter(s.key(name), 1)
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}
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func (s *StatsReporter) updateGauge(name string, value int64) {
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s.Reporter.UpdateGauge(s.key(name), value)
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}
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func (s *StatsReporter) recordTimer(name string, duration time.Duration) {
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s.Reporter.RecordTimer(s.key(name), duration)
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}
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func (s *StatsReporter) key(name string) string {
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return strings.Join([]string{s.Prefix, name}, ".")
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}
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