package caddyhttp import ( "fmt" "net" "net/http" "path" "strings" "github.com/caddyserver/caddy" ) // TODO: A simple way to format or escape or encode each value would be nice // ... TODO: Should we just use templates? :-/ yeesh... func addHTTPVarsToReplacer(repl caddy.Replacer, req *http.Request, w http.ResponseWriter) { httpVars := func() map[string]string { m := make(map[string]string) if req != nil { m["http.request.host"] = func() string { host, _, err := net.SplitHostPort(req.Host) if err != nil { return req.Host // OK; there probably was no port } return host }() m["http.request.hostport"] = req.Host // may include both host and port m["http.request.method"] = req.Method m["http.request.port"] = func() string { // if there is no port, there will be an error; in // that case, port is the empty string anyway _, port, _ := net.SplitHostPort(req.Host) return port }() m["http.request.scheme"] = func() string { if req.TLS != nil { return "https" } return "http" }() m["http.request.uri"] = req.URL.RequestURI() m["http.request.uri.path"] = req.URL.Path m["http.request.uri.path.file"] = func() string { _, file := path.Split(req.URL.Path) return file }() m["http.request.uri.path.dir"] = func() string { dir, _ := path.Split(req.URL.Path) return dir }() m["http.request.uri.query"] = req.URL.RawQuery for param, vals := range req.URL.Query() { m["http.request.uri.query."+param] = strings.Join(vals, ",") } for field, vals := range req.Header { m["http.request.header."+strings.ToLower(field)] = strings.Join(vals, ",") } for _, cookie := range req.Cookies() { m["http.request.cookie."+cookie.Name] = cookie.Value } hostLabels := strings.Split(req.Host, ".") for i, label := range hostLabels { key := fmt.Sprintf("http.request.host.labels.%d", len(hostLabels)-i-1) m[key] = label } } if w != nil { for field, vals := range w.Header() { m["http.response.header."+strings.ToLower(field)] = strings.Join(vals, ",") } } return m } repl.Map(httpVars) }