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1802 changed files with 503346 additions and 2 deletions
296
backend/internal/logging/home_app_log_forwarder.go
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296
backend/internal/logging/home_app_log_forwarder.go
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@ -0,0 +1,296 @@
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package logging
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import (
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"context"
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"encoding/json"
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"errors"
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"strings"
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"sync"
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"sync/atomic"
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"time"
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"github.com/router-for-me/CLIProxyAPI/v7/internal/home"
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log "github.com/sirupsen/logrus"
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)
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const defaultHomeAppLogQueueSize = 1024
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type homeAppLogClient interface {
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HeartbeatOK() bool
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RPushAppLog(ctx context.Context, payload []byte) error
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}
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type homeAppLogPayload struct {
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Line string `json:"line"`
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Level string `json:"level,omitempty"`
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Timestamp string `json:"timestamp,omitempty"`
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RequestID string `json:"request_id,omitempty"`
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client homeAppLogClient
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}
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// HomeAppLogForwarder forwards application logs to Home after the control connection is healthy.
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type HomeAppLogForwarder struct {
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formatter log.Formatter
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queue chan homeAppLogPayload
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stop chan struct{}
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stopOnce sync.Once
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wg sync.WaitGroup
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enabled atomic.Bool
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stopped atomic.Bool
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ownerMu sync.Mutex
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owner homeAppLogClient
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}
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type homeAppLogMux struct {
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mu sync.Mutex
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targets map[*HomeAppLogForwarder]struct{}
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}
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func (h *homeAppLogMux) Levels() []log.Level {
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return log.AllLevels
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}
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func (h *homeAppLogMux) Fire(entry *log.Entry) error {
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h.mu.Lock()
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targets := make([]*HomeAppLogForwarder, 0, len(h.targets))
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for target := range h.targets {
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targets = append(targets, target)
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}
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h.mu.Unlock()
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for _, target := range targets {
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if errFire := target.Fire(entry); errFire != nil {
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return errFire
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}
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}
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return nil
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}
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func (h *homeAppLogMux) register(target *HomeAppLogForwarder) {
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if target == nil {
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return
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}
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h.mu.Lock()
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defer h.mu.Unlock()
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if h.targets == nil {
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h.targets = make(map[*HomeAppLogForwarder]struct{})
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}
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h.targets[target] = struct{}{}
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}
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func (h *homeAppLogMux) unregister(target *HomeAppLogForwarder) {
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if target == nil {
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return
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}
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h.mu.Lock()
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delete(h.targets, target)
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h.mu.Unlock()
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}
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var (
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homeAppLogMuxHook = &homeAppLogMux{}
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homeAppLogMuxInstallOnce sync.Once
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)
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func registerHomeAppLogForwarder(forwarder *HomeAppLogForwarder) {
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homeAppLogMuxInstallOnce.Do(func() {
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log.AddHook(homeAppLogMuxHook)
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})
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homeAppLogMuxHook.register(forwarder)
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}
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// StartHomeAppLogForwarder registers a Home log forwarding target with the process-wide logrus hook.
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func StartHomeAppLogForwarder(queueSize int) *HomeAppLogForwarder {
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if queueSize <= 0 {
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queueSize = defaultHomeAppLogQueueSize
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}
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forwarder := &HomeAppLogForwarder{
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formatter: &LogFormatter{},
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queue: make(chan homeAppLogPayload, queueSize),
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stop: make(chan struct{}),
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}
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forwarder.enabled.Store(true)
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forwarder.wg.Add(1)
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go forwarder.run()
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registerHomeAppLogForwarder(forwarder)
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return forwarder
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}
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// Stop disables forwarding and waits for the background sender to exit.
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func (f *HomeAppLogForwarder) Stop() {
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if f == nil {
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return
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}
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f.stopOnce.Do(func() {
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f.stopped.Store(true)
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f.ownerMu.Lock()
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f.owner = nil
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f.ownerMu.Unlock()
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f.enabled.Store(false)
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homeAppLogMuxHook.unregister(f)
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close(f.stop)
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f.wg.Wait()
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})
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}
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// Bind activates forwarding to client.
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func (f *HomeAppLogForwarder) Bind(client *home.Client) {
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f.bind(client)
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}
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func (f *HomeAppLogForwarder) bind(client homeAppLogClient) {
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if f == nil || client == nil || f.stopped.Load() {
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return
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}
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f.ownerMu.Lock()
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defer f.ownerMu.Unlock()
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if f.stopped.Load() {
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return
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}
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f.owner = client
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f.enabled.Store(true)
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}
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// Deactivate stops forwarding only when client owns the forwarder.
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func (f *HomeAppLogForwarder) Deactivate(client *home.Client) {
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f.deactivate(client)
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}
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func (f *HomeAppLogForwarder) deactivate(client homeAppLogClient) {
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if f == nil || client == nil {
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return
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}
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f.ownerMu.Lock()
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if f.owner == client {
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f.owner = nil
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}
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f.ownerMu.Unlock()
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}
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func (f *HomeAppLogForwarder) client() homeAppLogClient {
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f.ownerMu.Lock()
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defer f.ownerMu.Unlock()
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return f.owner
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}
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// Levels implements logrus.Hook.
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func (f *HomeAppLogForwarder) Levels() []log.Level {
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return log.AllLevels
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}
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// Fire implements logrus.Hook.
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func (f *HomeAppLogForwarder) Fire(entry *log.Entry) error {
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if f == nil || entry == nil || !f.enabled.Load() {
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return nil
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}
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client := f.client()
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if client == nil || !client.HeartbeatOK() {
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return nil
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}
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line, errFormat := f.formatEntry(entry)
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if errFormat != nil || strings.TrimSpace(line) == "" {
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return nil
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}
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payload := homeAppLogPayload{
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Line: line,
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Level: entry.Level.String(),
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Timestamp: entry.Time.Format(time.RFC3339Nano),
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RequestID: appLogRequestID(entry),
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client: client,
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}
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select {
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case f.queue <- payload:
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default:
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}
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return nil
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}
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func appLogRequestID(entry *log.Entry) string {
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if entry == nil {
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return ""
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}
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requestID, _ := entry.Data["request_id"].(string)
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requestID = strings.TrimSpace(requestID)
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if requestID == "--------" {
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return ""
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}
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return requestID
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}
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func (f *HomeAppLogForwarder) formatEntry(entry *log.Entry) (string, error) {
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formatter := f.formatter
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if formatter == nil {
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formatter = &LogFormatter{}
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}
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raw, errFormat := formatter.Format(entry)
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if errFormat != nil {
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return "", errFormat
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}
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return string(raw), nil
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}
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func (f *HomeAppLogForwarder) run() {
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defer f.wg.Done()
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for {
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select {
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case <-f.stop:
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return
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case payload := <-f.queue:
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f.forward(payload)
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}
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}
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}
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func (f *HomeAppLogForwarder) forward(payload homeAppLogPayload) {
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client := payload.client
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if client == nil {
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client = f.client()
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}
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if !f.enabled.Load() || client == nil || f.client() != client {
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return
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}
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if !client.HeartbeatOK() {
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return
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}
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raw, errMarshal := json.Marshal(&payload)
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if errMarshal != nil {
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return
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}
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if errPush := client.RPushAppLog(context.Background(), raw); errPush != nil && isHomeAppLogUnsupported(errPush) {
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f.disableIfCurrentOwner(client)
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}
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}
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func (f *HomeAppLogForwarder) disableIfCurrentOwner(client homeAppLogClient) {
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f.ownerMu.Lock()
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defer f.ownerMu.Unlock()
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if f.owner != client {
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return
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}
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f.enabled.Store(false)
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}
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func isHomeAppLogUnsupported(err error) bool {
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if err == nil {
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return false
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}
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msg := strings.ToLower(strings.TrimSpace(err.Error()))
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if msg == "" {
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return false
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}
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for {
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switch {
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case strings.Contains(msg, "unsupported key"):
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return true
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case strings.Contains(msg, "unknown command"):
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return true
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case strings.Contains(msg, "unsupported command"):
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return true
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}
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err = errors.Unwrap(err)
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if err == nil {
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return false
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}
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msg = strings.ToLower(strings.TrimSpace(err.Error()))
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}
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}
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