forked from caddyserver/caddy
/
setup.go
169 lines (146 loc) · 3.38 KB
/
setup.go
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package fastcgi
import (
"errors"
"net/http"
"path/filepath"
"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]}
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":
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
}
}
rule.balancer = &roundRobin{addresses: upstreams, index: -1}
rules = append(rules, rule)
}
return rules, 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
}