mirror of
https://github.com/caddyserver/caddy.git
synced 2024-12-23 22:27:38 -05:00
132 lines
3.3 KiB
Go
132 lines
3.3 KiB
Go
// Copyright 2015 Matthew Holt and The Caddy Authors
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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 fileserver
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import (
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"encoding/json"
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"github.com/caddyserver/caddy/v2/caddyconfig/httpcaddyfile"
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"github.com/caddyserver/caddy/v2/modules/caddyhttp"
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"github.com/caddyserver/caddy/v2/modules/caddyhttp/rewrite"
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)
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func init() {
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httpcaddyfile.RegisterHandlerDirective("file_server", parseCaddyfile)
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httpcaddyfile.RegisterDirective("try_files", parseTryFiles)
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}
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// parseCaddyfile parses the file_server directive. It enables the static file
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// server and configures it with this syntax:
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//
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// file_server [<matcher>] [browse] {
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// root <path>
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// hide <files...>
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// index <files...>
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// browse [<template_file>]
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// }
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//
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func parseCaddyfile(h httpcaddyfile.Helper) (caddyhttp.MiddlewareHandler, error) {
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var fsrv FileServer
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for h.Next() {
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args := h.RemainingArgs()
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switch len(args) {
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case 0:
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case 1:
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if args[0] != "browse" {
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return nil, h.ArgErr()
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}
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fsrv.Browse = new(Browse)
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default:
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return nil, h.ArgErr()
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}
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for h.NextBlock(0) {
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switch h.Val() {
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case "hide":
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fsrv.Hide = h.RemainingArgs()
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if len(fsrv.Hide) == 0 {
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return nil, h.ArgErr()
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}
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case "index":
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fsrv.IndexNames = h.RemainingArgs()
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if len(fsrv.Hide) == 0 {
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return nil, h.ArgErr()
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}
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case "root":
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if !h.Args(&fsrv.Root) {
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return nil, h.ArgErr()
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}
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case "browse":
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if fsrv.Browse != nil {
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return nil, h.Err("browsing is already configured")
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}
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fsrv.Browse = new(Browse)
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h.Args(&fsrv.Browse.TemplateFile)
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default:
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return nil, h.Errf("unknown subdirective '%s'", h.Val())
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}
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}
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}
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// hide the Caddyfile (and any imported Caddyfiles)
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if configFiles := h.Caddyfiles(); len(configFiles) > 0 {
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for _, file := range configFiles {
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if !fileHidden(file, fsrv.Hide) {
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fsrv.Hide = append(fsrv.Hide, file)
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}
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}
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}
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return &fsrv, nil
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}
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// parseTryFiles parses the try_files directive. It combines a file matcher
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// with a rewrite directive, so this is not a standard handler directive.
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// A try_files directive has this syntax (notice no matcher tokens accepted):
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//
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// try_files <files...>
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//
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// and is shorthand for:
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//
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// matcher:try_files {
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// file {
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// try_files <files...>
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// }
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// }
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// rewrite match:try_files {http.matchers.file.relative}{http.request.uri.query_string}
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//
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func parseTryFiles(h httpcaddyfile.Helper) ([]httpcaddyfile.ConfigValue, error) {
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if !h.Next() {
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return nil, h.ArgErr()
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}
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try := h.RemainingArgs()
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if len(try) == 0 {
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return nil, h.ArgErr()
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}
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handler := rewrite.Rewrite{
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URI: "{http.matchers.file.relative}{http.request.uri.query_string}",
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}
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matcherSet := map[string]json.RawMessage{
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"file": h.JSON(MatchFile{
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TryFiles: try,
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}, nil),
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}
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return h.NewRoute(matcherSet, handler), nil
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}
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