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// Copyright 2021 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package routing
import (
"net/http"
"strings"
"time"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/web/types"
)
// NewLoggerHandler is a handler that will log routing to the router log taking account of
// routing information
func NewLoggerHandler() func(next http.Handler) http.Handler {
manager := requestRecordsManager{
requestRecords: map[uint64]*requestRecord{},
}
manager.startSlowQueryDetector(3 * time.Second)
logger := log.GetLogger("router")
manager.print = logPrinter(logger)
return manager.handler
}
var (
startMessage = log.NewColoredValue("started ", log.DEBUG.ColorAttributes()...)
slowMessage = log.NewColoredValue("slow ", log.WARN.ColorAttributes()...)
pollingMessage = log.NewColoredValue("polling ", log.INFO.ColorAttributes()...)
failedMessage = log.NewColoredValue("failed ", log.WARN.ColorAttributes()...)
completedMessage = log.NewColoredValue("completed", log.INFO.ColorAttributes()...)
unknownHandlerMessage = log.NewColoredValue("completed", log.ERROR.ColorAttributes()...)
)
func logPrinter(logger log.Logger) func(trigger Event, record *requestRecord) {
return func(trigger Event, record *requestRecord) {
if trigger == StartEvent {
if !logger.LevelEnabled(log.TRACE) {
// for performance, if the "started" message shouldn't be logged, we just return as early as possible
// developers can set the router log level to TRACE to get the "started" request messages.
return
}
// when a request starts, we have no information about the handler function information, we only have the request path
req := record.request
logger.Trace("router: %s %v %s for %s", startMessage, log.ColoredMethod(req.Method), req.RequestURI, req.RemoteAddr)
return
}
req := record.request
// Get data from the record
record.lock.Lock()
handlerFuncInfo := record.funcInfo.String()
isLongPolling := record.isLongPolling
isUnknownHandler := record.funcInfo == nil
panicErr := record.panicError
record.lock.Unlock()
if trigger == StillExecutingEvent {
message := slowMessage
logf := logger.Warn
if isLongPolling {
logf = logger.Info
message = pollingMessage
}
logf("router: %s %v %s for %s, elapsed %v @ %s",
message,
log.ColoredMethod(req.Method), req.RequestURI, req.RemoteAddr,
log.ColoredTime(time.Since(record.startTime)),
handlerFuncInfo,
)
return
}
if panicErr != nil {
logger.Warn("router: %s %v %s for %s, panic in %v @ %s, err=%v",
failedMessage,
log.ColoredMethod(req.Method), req.RequestURI, req.RemoteAddr,
log.ColoredTime(time.Since(record.startTime)),
handlerFuncInfo,
panicErr,
)
return
}
var status int
if v, ok := record.responseWriter.(types.ResponseStatusProvider); ok {
status = v.WrittenStatus()
}
logf := logger.Info
if strings.HasPrefix(req.RequestURI, "/assets/") {
logf = logger.Trace
}
message := completedMessage
if isUnknownHandler {
logf = logger.Error
message = unknownHandlerMessage
}
logf("router: %s %v %s for %s, %v %v in %v @ %s",
message,
log.ColoredMethod(req.Method), req.RequestURI, req.RemoteAddr,
log.ColoredStatus(status), log.ColoredStatus(status, http.StatusText(status)), log.ColoredTime(time.Since(record.startTime)),
handlerFuncInfo,
)
}
}
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