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caddy/config/middleware.go
2015-03-20 00:03:41 -06:00

56 lines
1.8 KiB
Go

package config
import (
"github.com/mholt/caddy/middleware"
"github.com/mholt/caddy/middleware/extensionless"
"github.com/mholt/caddy/middleware/fastcgi"
"github.com/mholt/caddy/middleware/gzip"
"github.com/mholt/caddy/middleware/headers"
"github.com/mholt/caddy/middleware/log"
"github.com/mholt/caddy/middleware/markdown"
"github.com/mholt/caddy/middleware/proxy"
"github.com/mholt/caddy/middleware/redirect"
"github.com/mholt/caddy/middleware/rewrite"
"github.com/mholt/caddy/middleware/websockets"
)
// This init function registers middleware. Register middleware
// in the order they should be executed during a request.
// Middleware execute in this order: A-B-C-*-C-B-A
// assuming they call the Next handler in the chain.
func init() {
register("gzip", gzip.New)
register("header", headers.New)
register("log", log.New)
register("rewrite", rewrite.New)
register("redirect", redirect.New)
register("ext", extensionless.New)
register("proxy", proxy.New)
register("fastcgi", fastcgi.New)
register("websocket", websockets.New)
register("markdown", markdown.New)
}
// registry stores the registered middleware:
// both the order and the directives to which they
// are bound.
var registry = struct {
directiveMap map[string]middleware.Generator
ordered []string
}{
directiveMap: make(map[string]middleware.Generator),
}
// register binds a middleware generator (outer function)
// to a directive. Upon each request, middleware will be
// executed in the order they are registered.
func register(directive string, generator middleware.Generator) {
registry.directiveMap[directive] = generator
registry.ordered = append(registry.ordered, directive)
}
// middlewareRegistered returns whether or not a directive is registered.
func middlewareRegistered(directive string) bool {
_, ok := registry.directiveMap[directive]
return ok
}