80 lines
2.2 KiB
Go
80 lines
2.2 KiB
Go
package middleware
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import (
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"fmt"
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"log/slog"
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"net/http"
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"strings"
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"time"
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chimiddleware "github.com/go-chi/chi/v5/middleware"
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"github.com/tigorlazuardi/redmage/pkg/log"
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)
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type ChiLogger struct{}
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func (ChiLogger) NewLogEntry(r *http.Request) chimiddleware.LogEntry {
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return &ChiEntry{request: r}
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}
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type ChiEntry struct {
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request *http.Request
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}
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func (ch *ChiEntry) Write(status int, bytes int, header http.Header, elapsed time.Duration, extra interface{}) {
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elasedStr := formatDuration(elapsed)
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message := fmt.Sprintf("%s %s %d %s", ch.request.Method, ch.request.URL, status, elasedStr)
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requestLog := slog.Attr{Key: "request", Value: ch.extractRequestLog()}
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responseLog := slog.Group("response", "status", status, "headers", flatHeader(header), "bytes", bytes)
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roundtripLog := slog.String("elapsed", elasedStr)
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group := slog.Group("http", requestLog, responseLog, roundtripLog)
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if status >= 400 {
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log.New(ch.request.Context()).With(group).Error(message)
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return
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}
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log.New(ch.request.Context()).With(group).Info(message)
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}
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func (ch *ChiEntry) Panic(v interface{}, stack []byte) {
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group := slog.Group("http", slog.Attr{Key: "request", Value: ch.extractRequestLog()})
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entry := log.New(ch.request.Context())
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message := fmt.Sprintf("[PANIC] %s %s", ch.request.Method, ch.request.URL)
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if err, ok := v.(error); ok {
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entry.Err(err).With(group).Error(message, "stack", string(stack))
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} else {
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entry.With(group).Error(message, "panic_data", v, "stack", string(stack))
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}
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}
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func (ch *ChiEntry) extractRequestLog() slog.Value {
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values := make([]slog.Attr, 0, 4)
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values = append(values,
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slog.String("method", ch.request.Method),
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slog.String("path", ch.request.URL.Path),
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)
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queries := ch.request.URL.Query()
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if len(queries) > 0 {
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values = append(values, slog.Any("query", queries))
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}
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values = append(values, slog.Any("headers", flatHeader(ch.request.Header)))
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return slog.GroupValue(values...)
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}
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func flatHeader(header http.Header) map[string]string {
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m := make(map[string]string, len(header))
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for k := range header {
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m[k] = strings.Join(header[k], "; ")
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}
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return m
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}
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func formatDuration(dur time.Duration) string {
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nanosecs := float64(dur)
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return fmt.Sprintf("%.3fms", nanosecs/float64(time.Millisecond))
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}
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