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baf6db5b57
I am not a lawyer, but according to the appendix of the license, these boilerplate notices should be included with every source file.
116 lines
2.7 KiB
Go
116 lines
2.7 KiB
Go
// Copyright 2015 Light Code Labs, LLC
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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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package log
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import (
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"strings"
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"github.com/mholt/caddy"
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"github.com/mholt/caddy/caddyhttp/httpserver"
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)
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// setup sets up the logging middleware.
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func setup(c *caddy.Controller) error {
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rules, err := logParse(c)
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if err != nil {
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return err
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}
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for _, rule := range rules {
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for _, entry := range rule.Entries {
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entry.Log.Attach(c)
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}
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}
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httpserver.GetConfig(c).AddMiddleware(func(next httpserver.Handler) httpserver.Handler {
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return Logger{Next: next, Rules: rules, ErrorFunc: httpserver.DefaultErrorFunc}
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})
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return nil
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}
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func logParse(c *caddy.Controller) ([]*Rule, error) {
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var rules []*Rule
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for c.Next() {
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args := c.RemainingArgs()
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var logRoller *httpserver.LogRoller
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logRoller = httpserver.DefaultLogRoller()
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for c.NextBlock() {
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what := c.Val()
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where := c.RemainingArgs()
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// only support roller related options inside a block
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if !httpserver.IsLogRollerSubdirective(what) {
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return nil, c.ArgErr()
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}
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if err := httpserver.ParseRoller(logRoller, what, where...); err != nil {
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return nil, err
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}
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}
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path := "/"
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format := DefaultLogFormat
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output := DefaultLogFilename
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switch len(args) {
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case 0:
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// nothing to change
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case 1:
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// Only an output file specified
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output = args[0]
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case 2, 3:
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// Path scope, output file, and maybe a format specified
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path = args[0]
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output = args[1]
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if len(args) > 2 {
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format = strings.Replace(args[2], "{common}", CommonLogFormat, -1)
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format = strings.Replace(format, "{combined}", CombinedLogFormat, -1)
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}
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default:
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// Maximum number of args in log directive is 3.
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return nil, c.ArgErr()
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}
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rules = appendEntry(rules, path, &Entry{
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Log: &httpserver.Logger{
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Output: output,
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Roller: logRoller,
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},
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Format: format,
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})
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}
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return rules, nil
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}
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func appendEntry(rules []*Rule, pathScope string, entry *Entry) []*Rule {
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for _, rule := range rules {
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if rule.PathScope == pathScope {
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rule.Entries = append(rule.Entries, entry)
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return rules
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}
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}
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rules = append(rules, &Rule{
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PathScope: pathScope,
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Entries: []*Entry{entry},
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})
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return rules
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}
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