mirror of
https://github.com/caddyserver/caddy.git
synced 2024-11-26 02:09:47 +08:00
123 lines
3.3 KiB
Go
123 lines
3.3 KiB
Go
// Copyright 2015 Matthew Holt and The Caddy Authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
package caddyhttp
|
|
|
|
import (
|
|
"net/http"
|
|
"strconv"
|
|
"strings"
|
|
|
|
"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
|
|
)
|
|
|
|
// ResponseMatcher is a type which can determine if an
|
|
// HTTP response matches some criteria.
|
|
type ResponseMatcher struct {
|
|
// If set, one of these status codes would be required.
|
|
// A one-digit status can be used to represent all codes
|
|
// in that class (e.g. 3 for all 3xx codes).
|
|
StatusCode []int `json:"status_code,omitempty"`
|
|
|
|
// If set, each header specified must be one of the
|
|
// specified values, with the same logic used by the
|
|
// [request header matcher](/docs/json/apps/http/servers/routes/match/header/).
|
|
Headers http.Header `json:"headers,omitempty"`
|
|
}
|
|
|
|
// Match returns true if the given statusCode and hdr match rm.
|
|
func (rm ResponseMatcher) Match(statusCode int, hdr http.Header) bool {
|
|
if !rm.matchStatusCode(statusCode) {
|
|
return false
|
|
}
|
|
return matchHeaders(hdr, rm.Headers, "", nil)
|
|
}
|
|
|
|
func (rm ResponseMatcher) matchStatusCode(statusCode int) bool {
|
|
if rm.StatusCode == nil {
|
|
return true
|
|
}
|
|
for _, code := range rm.StatusCode {
|
|
if StatusCodeMatches(statusCode, code) {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
// ParseNamedResponseMatcher parses the tokens of a named response matcher.
|
|
//
|
|
// @name {
|
|
// header <field> [<value>]
|
|
// status <code...>
|
|
// }
|
|
//
|
|
// Or, single line syntax:
|
|
//
|
|
// @name [header <field> [<value>]] | [status <code...>]
|
|
//
|
|
func ParseNamedResponseMatcher(d *caddyfile.Dispenser, matchers map[string]ResponseMatcher) error {
|
|
for d.Next() {
|
|
definitionName := d.Val()
|
|
|
|
if _, ok := matchers[definitionName]; ok {
|
|
return d.Errf("matcher is defined more than once: %s", definitionName)
|
|
}
|
|
|
|
matcher := ResponseMatcher{}
|
|
for nesting := d.Nesting(); d.NextArg() || d.NextBlock(nesting); {
|
|
switch d.Val() {
|
|
case "header":
|
|
if matcher.Headers == nil {
|
|
matcher.Headers = http.Header{}
|
|
}
|
|
|
|
// reuse the header request matcher's unmarshaler
|
|
headerMatcher := MatchHeader(matcher.Headers)
|
|
err := headerMatcher.UnmarshalCaddyfile(d.NewFromNextSegment())
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
matcher.Headers = http.Header(headerMatcher)
|
|
case "status":
|
|
if matcher.StatusCode == nil {
|
|
matcher.StatusCode = []int{}
|
|
}
|
|
|
|
args := d.RemainingArgs()
|
|
if len(args) == 0 {
|
|
return d.ArgErr()
|
|
}
|
|
|
|
for _, arg := range args {
|
|
if len(arg) == 3 && strings.HasSuffix(arg, "xx") {
|
|
arg = arg[:1]
|
|
}
|
|
statusNum, err := strconv.Atoi(arg)
|
|
if err != nil {
|
|
return d.Errf("bad status value '%s': %v", arg, err)
|
|
}
|
|
matcher.StatusCode = append(matcher.StatusCode, statusNum)
|
|
}
|
|
default:
|
|
return d.Errf("unrecognized response matcher %s", d.Val())
|
|
}
|
|
}
|
|
|
|
matchers[definitionName] = matcher
|
|
}
|
|
return nil
|
|
}
|