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79 lines
2.1 KiB
Go
79 lines
2.1 KiB
Go
package logger
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import (
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"fmt"
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"net/http"
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"time"
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"github.com/go-chi/chi/v5/middleware"
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"github.com/rs/zerolog"
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"github.com/drakkan/sftpgo/v2/metric"
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)
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// StructuredLogger defines a simple wrapper around zerolog logger.
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// It implements chi.middleware.LogFormatter interface
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type StructuredLogger struct {
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Logger *zerolog.Logger
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}
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// StructuredLoggerEntry defines a log entry.
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// It implements chi.middleware.LogEntry interface
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type StructuredLoggerEntry struct {
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// The zerolog logger
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Logger *zerolog.Logger
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// fields to write in the log
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fields map[string]interface{}
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}
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// NewStructuredLogger returns a chi.middleware.RequestLogger using our StructuredLogger.
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// This structured logger is called by the chi.middleware.Logger handler to log each HTTP request
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func NewStructuredLogger(logger *zerolog.Logger) func(next http.Handler) http.Handler {
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return middleware.RequestLogger(&StructuredLogger{logger})
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}
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// NewLogEntry creates a new log entry for an HTTP request
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func (l *StructuredLogger) NewLogEntry(r *http.Request) middleware.LogEntry {
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scheme := "http"
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if r.TLS != nil {
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scheme = "https"
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}
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fields := map[string]interface{}{
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"remote_addr": r.RemoteAddr,
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"proto": r.Proto,
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"method": r.Method,
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"user_agent": r.UserAgent(),
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"uri": fmt.Sprintf("%s://%s%s", scheme, r.Host, r.RequestURI)}
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reqID := middleware.GetReqID(r.Context())
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if reqID != "" {
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fields["request_id"] = reqID
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}
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return &StructuredLoggerEntry{Logger: l.Logger, fields: fields}
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}
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// Write logs a new entry at the end of the HTTP request
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func (l *StructuredLoggerEntry) Write(status, bytes int, header http.Header, elapsed time.Duration, extra interface{}) {
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metric.HTTPRequestServed(status)
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l.Logger.Info().
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Timestamp().
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Str("sender", "httpd").
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Fields(l.fields).
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Int("resp_status", status).
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Int("resp_size", bytes).
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Int64("elapsed_ms", elapsed.Nanoseconds()/1000000).
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Send()
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}
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// Panic logs panics
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func (l *StructuredLoggerEntry) Panic(v interface{}, stack []byte) {
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l.Logger.Error().
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Timestamp().
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Str("sender", "httpd").
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Fields(l.fields).
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Str("stack", string(stack)).
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Str("panic", fmt.Sprintf("%+v", v)).
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Send()
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}
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