diff options
Diffstat (limited to 'plugin/http.go')
-rw-r--r-- | plugin/http.go | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/plugin/http.go b/plugin/http.go new file mode 100644 index 000000000..7d1650369 --- /dev/null +++ b/plugin/http.go @@ -0,0 +1,83 @@ +// Copyright (c) 2015-present Mattermost, Inc. All Rights Reserved. +// See LICENSE.txt for license information. + +package plugin + +import ( + "io" + "net/http" + "net/rpc" +) + +type httpResponseWriterRPCServer struct { + w http.ResponseWriter +} + +func (w *httpResponseWriterRPCServer) Header(args struct{}, reply *http.Header) error { + *reply = w.w.Header() + return nil +} + +func (w *httpResponseWriterRPCServer) Write(args []byte, reply *struct{}) error { + _, err := w.w.Write(args) + return err +} + +func (w *httpResponseWriterRPCServer) WriteHeader(args int, reply *struct{}) error { + w.w.WriteHeader(args) + return nil +} + +func (w *httpResponseWriterRPCServer) SyncHeader(args http.Header, reply *struct{}) error { + dest := w.w.Header() + for k := range dest { + if _, ok := args[k]; !ok { + delete(dest, k) + } + } + for k, v := range args { + dest[k] = v + } + return nil +} + +type httpResponseWriterRPCClient struct { + client *rpc.Client + header http.Header +} + +var _ http.ResponseWriter = (*httpResponseWriterRPCClient)(nil) + +func (w *httpResponseWriterRPCClient) Header() http.Header { + if w.header == nil { + w.client.Call("Plugin.Header", struct{}{}, &w.header) + } + return w.header +} + +func (w *httpResponseWriterRPCClient) Write(b []byte) (int, error) { + if err := w.client.Call("Plugin.SyncHeader", w.header, nil); err != nil { + return 0, err + } + if err := w.client.Call("Plugin.Write", b, nil); err != nil { + return 0, err + } + return len(b), nil +} + +func (w *httpResponseWriterRPCClient) WriteHeader(statusCode int) { + if err := w.client.Call("Plugin.SyncHeader", w.header, nil); err != nil { + return + } + w.client.Call("Plugin.WriteHeader", statusCode, nil) +} + +func (h *httpResponseWriterRPCClient) Close() error { + return h.client.Close() +} + +func connectHTTPResponseWriter(conn io.ReadWriteCloser) *httpResponseWriterRPCClient { + return &httpResponseWriterRPCClient{ + client: rpc.NewClient(conn), + } +} |