forked from caddyserver/caddy
-
Notifications
You must be signed in to change notification settings - Fork 0
/
setup.go
215 lines (186 loc) · 4.61 KB
/
setup.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
// Copyright 2015 Light Code Labs, LLC
//
// 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 fastcgi
import (
"errors"
"fmt"
"net"
"net/http"
"path/filepath"
"strings"
"time"
"github.com/mholt/caddy"
"github.com/mholt/caddy/caddyhttp/httpserver"
)
func init() {
caddy.RegisterPlugin("fastcgi", caddy.Plugin{
ServerType: "http",
Action: setup,
})
}
// setup configures a new FastCGI middleware instance.
func setup(c *caddy.Controller) error {
cfg := httpserver.GetConfig(c)
rules, err := fastcgiParse(c)
if err != nil {
return err
}
cfg.AddMiddleware(func(next httpserver.Handler) httpserver.Handler {
return Handler{
Next: next,
Rules: rules,
Root: cfg.Root,
FileSys: http.Dir(cfg.Root),
SoftwareName: caddy.AppName,
SoftwareVersion: caddy.AppVersion,
ServerName: cfg.Addr.Host,
ServerPort: cfg.Addr.Port,
}
})
return nil
}
func fastcgiParse(c *caddy.Controller) ([]Rule, error) {
var rules []Rule
cfg := httpserver.GetConfig(c)
absRoot, err := filepath.Abs(cfg.Root)
if err != nil {
return nil, err
}
for c.Next() {
args := c.RemainingArgs()
if len(args) < 2 || len(args) > 3 {
return rules, c.ArgErr()
}
rule := Rule{
Root: absRoot,
Path: args[0],
}
upstreams := []string{args[1]}
srvUpstream := false
if strings.HasPrefix(upstreams[0], "srv://") {
srvUpstream = true
}
if len(args) == 3 {
if err := fastcgiPreset(args[2], &rule); err != nil {
return rules, err
}
}
var err error
for c.NextBlock() {
switch c.Val() {
case "root":
if !c.NextArg() {
return rules, c.ArgErr()
}
rule.Root = c.Val()
case "ext":
if !c.NextArg() {
return rules, c.ArgErr()
}
rule.Ext = c.Val()
case "split":
if !c.NextArg() {
return rules, c.ArgErr()
}
rule.SplitPath = c.Val()
case "index":
args := c.RemainingArgs()
if len(args) == 0 {
return rules, c.ArgErr()
}
rule.IndexFiles = args
case "upstream":
if srvUpstream {
return rules, c.Err("additional upstreams are not supported with SRV upstream")
}
args := c.RemainingArgs()
if len(args) != 1 {
return rules, c.ArgErr()
}
upstreams = append(upstreams, args[0])
case "env":
envArgs := c.RemainingArgs()
if len(envArgs) < 2 {
return rules, c.ArgErr()
}
rule.EnvVars = append(rule.EnvVars, [2]string{envArgs[0], envArgs[1]})
case "except":
ignoredPaths := c.RemainingArgs()
if len(ignoredPaths) == 0 {
return rules, c.ArgErr()
}
rule.IgnoredSubPaths = ignoredPaths
case "connect_timeout":
if !c.NextArg() {
return rules, c.ArgErr()
}
rule.ConnectTimeout, err = time.ParseDuration(c.Val())
if err != nil {
return rules, err
}
case "read_timeout":
if !c.NextArg() {
return rules, c.ArgErr()
}
readTimeout, err := time.ParseDuration(c.Val())
if err != nil {
return rules, err
}
rule.ReadTimeout = readTimeout
case "send_timeout":
if !c.NextArg() {
return rules, c.ArgErr()
}
sendTimeout, err := time.ParseDuration(c.Val())
if err != nil {
return rules, err
}
rule.SendTimeout = sendTimeout
}
}
if srvUpstream {
balancer, err := parseSRV(upstreams[0])
if err != nil {
return rules, c.Err("malformed service locator string: " + err.Error())
}
rule.balancer = balancer
} else {
rule.balancer = &roundRobin{addresses: upstreams, index: -1}
}
rules = append(rules, rule)
}
return rules, nil
}
func parseSRV(locator string) (*srv, error) {
if locator[6:] == "" {
return nil, fmt.Errorf("%s does not include the host", locator)
}
return &srv{
service: locator[6:],
resolver: &net.Resolver{},
}, nil
}
// fastcgiPreset configures rule according to name. It returns an error if
// name is not a recognized preset name.
func fastcgiPreset(name string, rule *Rule) error {
switch name {
case "php":
rule.Ext = ".php"
rule.SplitPath = ".php"
rule.IndexFiles = []string{"index.php"}
default:
return errors.New(name + " is not a valid preset name")
}
return nil
}