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caddy/modules/caddyhttp/templates/caddyfile.go

81 lines
2.4 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 templates
import (
"github.com/caddyserver/caddy/v2"
"github.com/caddyserver/caddy/v2/caddyconfig"
"github.com/caddyserver/caddy/v2/caddyconfig/caddyfile"
"github.com/caddyserver/caddy/v2/caddyconfig/httpcaddyfile"
"github.com/caddyserver/caddy/v2/modules/caddyhttp"
)
func init() {
httpcaddyfile.RegisterHandlerDirective("templates", parseCaddyfile)
}
// parseCaddyfile sets up the handler from Caddyfile tokens. Syntax:
//
// templates [<matcher>] {
// mime <types...>
// between <open_delim> <close_delim>
// root <path>
// }
func parseCaddyfile(h httpcaddyfile.Helper) (caddyhttp.MiddlewareHandler, error) {
h.Next() // consume directive name
t := new(Templates)
for h.NextBlock(0) {
switch h.Val() {
case "mime":
t.MIMETypes = h.RemainingArgs()
if len(t.MIMETypes) == 0 {
return nil, h.ArgErr()
}
case "between":
t.Delimiters = h.RemainingArgs()
if len(t.Delimiters) != 2 {
return nil, h.ArgErr()
}
case "root":
if !h.Args(&t.FileRoot) {
return nil, h.ArgErr()
}
case "extensions":
if h.NextArg() {
return nil, h.ArgErr()
}
if t.ExtensionsRaw != nil {
return nil, h.Err("extensions already specified")
}
for nesting := h.Nesting(); h.NextBlock(nesting); {
extensionModuleName := h.Val()
modID := "http.handlers.templates.functions." + extensionModuleName
unm, err := caddyfile.UnmarshalModule(h.Dispenser, modID)
if err != nil {
return nil, err
}
cf, ok := unm.(CustomFunctions)
if !ok {
return nil, h.Errf("module %s (%T) does not provide template functions", modID, unm)
}
if t.ExtensionsRaw == nil {
t.ExtensionsRaw = make(caddy.ModuleMap)
}
t.ExtensionsRaw[extensionModuleName] = caddyconfig.JSON(cf, nil)
}
}
}
return t, nil
}