103 lines
3.1 KiB
Go
103 lines
3.1 KiB
Go
// Copyright 2021 The Matrix.org Foundation C.I.C.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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//go:build !windows
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// +build !windows
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package internal
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import (
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"io"
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"log/syslog"
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"github.com/MFAshby/stdemuxerhook"
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"github.com/sirupsen/logrus"
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lSyslog "github.com/sirupsen/logrus/hooks/syslog"
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"github.com/matrix-org/dendrite/setup/config"
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)
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// SetupHookLogging configures the logging hooks defined in the configuration.
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// If something fails here it means that the logging was improperly configured,
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// so we just exit with the error
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func SetupHookLogging(hooks []config.LogrusHook) {
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levelLogAddedMu.Lock()
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defer levelLogAddedMu.Unlock()
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for _, hook := range hooks {
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// Check we received a proper logging level
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level, err := logrus.ParseLevel(hook.Level)
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if err != nil {
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logrus.Fatalf("Unrecognised logging level %s: %q", hook.Level, err)
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}
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// Perform a first filter on the logs according to the lowest level of all
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// (Eg: If we have hook for info and above, prevent logrus from processing debug logs)
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if logrus.GetLevel() < level {
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logrus.SetLevel(level)
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}
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switch hook.Type {
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case "file":
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checkFileHookParams(hook.Params)
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setupFileHook(hook, level)
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case "syslog":
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checkSyslogHookParams(hook.Params)
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setupSyslogHook(hook, level)
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case "std":
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setupStdLogHook(level)
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default:
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logrus.Fatalf("Unrecognised logging hook type: %s", hook.Type)
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}
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}
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setupStdLogHook(logrus.InfoLevel)
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// Hooks are now configured for stdout/err, so throw away the default logger output
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logrus.SetOutput(io.Discard)
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}
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func checkSyslogHookParams(params map[string]interface{}) {
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addr, ok := params["address"]
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if !ok {
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logrus.Fatalf("Expecting a parameter \"address\" for logging hook of type \"syslog\"")
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}
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if _, ok := addr.(string); !ok {
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logrus.Fatalf("Parameter \"address\" for logging hook of type \"syslog\" should be a string")
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}
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proto, ok2 := params["protocol"]
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if !ok2 {
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logrus.Fatalf("Expecting a parameter \"protocol\" for logging hook of type \"syslog\"")
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}
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if _, ok2 := proto.(string); !ok2 {
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logrus.Fatalf("Parameter \"protocol\" for logging hook of type \"syslog\" should be a string")
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}
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}
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func setupStdLogHook(level logrus.Level) {
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if stdLevelLogAdded[level] {
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return
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}
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logrus.AddHook(&logLevelHook{level, stdemuxerhook.New(logrus.StandardLogger())})
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stdLevelLogAdded[level] = true
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}
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func setupSyslogHook(hook config.LogrusHook, level logrus.Level) {
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syslogHook, err := lSyslog.NewSyslogHook(hook.Params["protocol"].(string), hook.Params["address"].(string), syslog.LOG_INFO, "dendrite")
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if err == nil {
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logrus.AddHook(&logLevelHook{level, syslogHook})
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}
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}
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