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// Copyright 2020 The Matrix.org Foundation C.I.C.
//
// 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 httputil
import (
"encoding/json"
"net/http"
"net/url"
"github.com/gorilla/mux"
"github.com/matrix-org/gomatrixserverlib/spec"
)
// URLDecodeMapValues is a function that iterates through each of the items in a
// map, URL decodes the value, and returns a new map with the decoded values
// under the same key names
func URLDecodeMapValues(vmap map[string]string) (map[string]string, error) {
decoded := make(map[string]string, len(vmap))
for key, value := range vmap {
decodedVal, err := url.PathUnescape(value)
if err != nil {
return make(map[string]string), err
}
decoded[key] = decodedVal
}
return decoded, nil
}
type Routers struct {
Client *mux.Router
Federation *mux.Router
Keys *mux.Router
Media *mux.Router
WellKnown *mux.Router
Static *mux.Router
DendriteAdmin *mux.Router
SynapseAdmin *mux.Router
}
func NewRouters() Routers {
r := Routers{
Client: mux.NewRouter().SkipClean(true).PathPrefix(PublicClientPathPrefix).Subrouter().UseEncodedPath(),
Federation: mux.NewRouter().SkipClean(true).PathPrefix(PublicFederationPathPrefix).Subrouter().UseEncodedPath(),
Keys: mux.NewRouter().SkipClean(true).PathPrefix(PublicKeyPathPrefix).Subrouter().UseEncodedPath(),
Media: mux.NewRouter().SkipClean(true).PathPrefix(PublicMediaPathPrefix).Subrouter().UseEncodedPath(),
WellKnown: mux.NewRouter().SkipClean(true).PathPrefix(PublicWellKnownPrefix).Subrouter().UseEncodedPath(),
Static: mux.NewRouter().SkipClean(true).PathPrefix(PublicStaticPath).Subrouter().UseEncodedPath(),
DendriteAdmin: mux.NewRouter().SkipClean(true).PathPrefix(DendriteAdminPathPrefix).Subrouter().UseEncodedPath(),
SynapseAdmin: mux.NewRouter().SkipClean(true).PathPrefix(SynapseAdminPathPrefix).Subrouter().UseEncodedPath(),
}
r.configureHTTPErrors()
return r
}
var NotAllowedHandler = WrapHandlerInCORS(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusMethodNotAllowed)
w.Header().Set("Content-Type", "application/json")
unrecognizedErr, _ := json.Marshal(spec.Unrecognized("Unrecognized request")) // nolint:misspell
_, _ = w.Write(unrecognizedErr) // nolint:misspell
}))
var NotFoundCORSHandler = WrapHandlerInCORS(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
w.WriteHeader(http.StatusNotFound)
w.Header().Set("Content-Type", "application/json")
unrecognizedErr, _ := json.Marshal(spec.Unrecognized("Unrecognized request")) // nolint:misspell
_, _ = w.Write(unrecognizedErr) // nolint:misspell
}))
func (r *Routers) configureHTTPErrors() {
for _, router := range []*mux.Router{
r.Client, r.Federation, r.Keys,
r.Media, r.WellKnown, r.Static,
r.DendriteAdmin, r.SynapseAdmin,
} {
router.NotFoundHandler = NotFoundCORSHandler
router.MethodNotAllowedHandler = NotAllowedHandler
}
}
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