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go-mastodon
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Merge branch 'master' of github.com:mattn/go-mastodon

pull/44/head
Yasuhiro Matsumoto 2017-04-24 19:38:36 +09:00
parent def474a7a5 321e7e8edb
commit 055cbf0e6f
4 changed files with 478 additions and 2 deletions
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2
accounts_test.go
View File

@ -27,7 +27,7 @@ func TestGetAccount(t *testing.T) {
})
a, err := client.GetAccount(context.Background(), 1)
if err == nil {
t.Fatalf("should not be fail: %v", err)
t.Fatalf("should be fail: %v", err)
}
a, err = client.GetAccount(context.Background(), 1234567)
if err != nil {

2
cmd/mstdn/cmd_follow_test.go
View File

@ -60,7 +60,7 @@ func TestCmdFollow(t *testing.T) {
func(app *cli.App) {
err := app.Run([]string{"mstdn", "follow", "different_id"})
if err == nil {
t.Fatalf("should not be fail: %v", err)
t.Fatalf("should be fail: %v", err)
}
},
)

178
streaming_ws.go 100644
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@ -0,0 +1,178 @@
package mastodon
import (
"context"
"encoding/json"
"net/url"
"path"
"github.com/gorilla/websocket"
)
// WSClient is a WebSocket client.
type WSClient struct {
websocket.Dialer
client *Client
}
// NewWSClient return WebSocket client.
func (c *Client) NewWSClient() *WSClient { return &WSClient{client: c} }
// Stream is a struct of data that flows in streaming.
type Stream struct {
Event string `json:"event"`
Payload interface{} `json:"payload"`
}
// StreamingWSPublic return channel to read events on public using WebSocket.
func (c *WSClient) StreamingWSPublic(ctx context.Context) (chan Event, error) {
return c.streamingWS(ctx, "public", "")
}
// StreamingWSPublicLocal return channel to read events on public local using WebSocket.
func (c *WSClient) StreamingWSPublicLocal(ctx context.Context) (chan Event, error) {
return c.streamingWS(ctx, "public:local", "")
}
// StreamingWSUser return channel to read events on home using WebSocket.
func (c *WSClient) StreamingWSUser(ctx context.Context) (chan Event, error) {
return c.streamingWS(ctx, "user", "")
}
// StreamingWSHashtag return channel to read events on tagged timeline using WebSocket.
func (c *WSClient) StreamingWSHashtag(ctx context.Context, tag string) (chan Event, error) {
return c.streamingWS(ctx, "hashtag", tag)
}
// StreamingWSHashtagLocal return channel to read events on tagged local timeline using WebSocket.
func (c *WSClient) StreamingWSHashtagLocal(ctx context.Context, tag string) (chan Event, error) {
return c.streamingWS(ctx, "hashtag:local", tag)
}
func (c *WSClient) streamingWS(ctx context.Context, stream, tag string) (chan Event, error) {
params := url.Values{}
params.Set("access_token", c.client.config.AccessToken)
params.Set("stream", stream)
if tag != "" {
params.Set("tag", tag)
}
u, err := changeWebSocketScheme(c.client.config.Server)
if err != nil {
return nil, err
}
u.Path = path.Join(u.Path, "/api/v1/streaming")
u.RawQuery = params.Encode()
q := make(chan Event)
go func() {
for {
err := c.handleWS(ctx, u.String(), q)
if err != nil {
return
}
}
}()
return q, nil
}
func (c *WSClient) handleWS(ctx context.Context, rawurl string, q chan Event) error {
conn, err := c.dialRedirect(rawurl)
if err != nil {
q <- &ErrorEvent{err: err}
// End.
return err
}
defer conn.Close()
for {
select {
case <-ctx.Done():
q <- &ErrorEvent{err: ctx.Err()}
// End.
return ctx.Err()
default:
}
var s Stream
err := conn.ReadJSON(&s)
if err != nil {
q <- &ErrorEvent{err: err}
// Reconnect.
break
}
err = nil
switch s.Event {
case "update":
var status Status
err = json.Unmarshal([]byte(s.Payload.(string)), &status)
if err == nil {
q <- &UpdateEvent{Status: &status}
}
case "notification":
var notification Notification
err = json.Unmarshal([]byte(s.Payload.(string)), &notification)
if err == nil {
q <- &NotificationEvent{Notification: &notification}
}
case "delete":
q <- &DeleteEvent{ID: int64(s.Payload.(float64))}
}
if err != nil {
q <- &ErrorEvent{err}
}
}
return nil
}
func (c *WSClient) dialRedirect(rawurl string) (conn *websocket.Conn, err error) {
for {
conn, rawurl, err = c.dial(rawurl)
if err != nil {
return nil, err
} else if conn != nil {
return conn, nil
}
}
}
func (c *WSClient) dial(rawurl string) (*websocket.Conn, string, error) {
conn, resp, err := c.Dial(rawurl, nil)
if err != nil && err != websocket.ErrBadHandshake {
return nil, "", err
}
defer resp.Body.Close()
if loc := resp.Header.Get("Location"); loc != "" {
u, err := changeWebSocketScheme(loc)
if err != nil {
return nil, "", err
}
return nil, u.String(), nil
}
return conn, "", err
}
func changeWebSocketScheme(rawurl string) (*url.URL, error) {
u, err := url.Parse(rawurl)
if err != nil {
return nil, err
}
switch u.Scheme {
case "http":
u.Scheme = "ws"
case "https":
u.Scheme = "wss"
}
return u, nil
}

298
streaming_ws_test.go 100644
View File

@ -0,0 +1,298 @@
package mastodon
import (
"context"
"net/http"
"net/http/httptest"
"testing"
"time"
"github.com/gorilla/websocket"
)
func TestStreamingWSPublic(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(wsMock))
defer ts.Close()
client := NewClient(&Config{Server: ts.URL}).NewWSClient()
ctx, cancel := context.WithCancel(context.Background())
q, err := client.StreamingWSPublic(ctx)
if err != nil {
t.Fatalf("should not be fail: %v", err)
}
wsTest(t, q, cancel)
}
func TestStreamingWSPublicLocal(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(wsMock))
defer ts.Close()
client := NewClient(&Config{Server: ts.URL}).NewWSClient()
ctx, cancel := context.WithCancel(context.Background())
q, err := client.StreamingWSPublicLocal(ctx)
if err != nil {
t.Fatalf("should not be fail: %v", err)
}
wsTest(t, q, cancel)
}
func TestStreamingWSUser(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(wsMock))
defer ts.Close()
client := NewClient(&Config{Server: ts.URL}).NewWSClient()
ctx, cancel := context.WithCancel(context.Background())
q, err := client.StreamingWSUser(ctx)
if err != nil {
t.Fatalf("should not be fail: %v", err)
}
wsTest(t, q, cancel)
}
func TestStreamingWSHashtag(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(wsMock))
defer ts.Close()
client := NewClient(&Config{Server: ts.URL}).NewWSClient()
ctx, cancel := context.WithCancel(context.Background())
q, err := client.StreamingWSHashtag(ctx, "zzz")
if err != nil {
t.Fatalf("should not be fail: %v", err)
}
wsTest(t, q, cancel)
}
func TestStreamingWSHashtagLocal(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(wsMock))
defer ts.Close()
client := NewClient(&Config{Server: ts.URL}).NewWSClient()
ctx, cancel := context.WithCancel(context.Background())
q, err := client.StreamingWSHashtagLocal(ctx, "zzz")
if err != nil {
t.Fatalf("should not be fail: %v", err)
}
wsTest(t, q, cancel)
}
func wsMock(w http.ResponseWriter, r *http.Request) {
if r.URL.Path != "/api/v1/streaming" {
http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
return
}
u := websocket.Upgrader{}
conn, err := u.Upgrade(w, r, nil)
if err != nil {
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
defer conn.Close()
err = conn.WriteMessage(websocket.TextMessage,
[]byte(`{"event":"update","payload":"{\"content\":\"foo\"}"}`))
if err != nil {
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
err = conn.WriteMessage(websocket.TextMessage,
[]byte(`{"event":"notification","payload":"{\"id\":123}"}`))
if err != nil {
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
err = conn.WriteMessage(websocket.TextMessage,
[]byte(`{"event":"delete","payload":1234567}`))
if err != nil {
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
err = conn.WriteMessage(websocket.TextMessage,
[]byte(`{"event":"update","payload":"<html></html>"}`))
if err != nil {
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
time.Sleep(10 * time.Second)
}
func wsTest(t *testing.T, q chan Event, cancel func()) {
time.AfterFunc(time.Second, func() {
cancel()
close(q)
})
events := []Event{}
for e := range q {
events = append(events, e)
}
if len(events) != 4 {
t.Fatalf("result should be two: %d", len(events))
}
if events[0].(*UpdateEvent).Status.Content != "foo" {
t.Fatalf("want %q but %q", "foo", events[0].(*UpdateEvent).Status.Content)
}
if events[1].(*NotificationEvent).Notification.ID != 123 {
t.Fatalf("want %d but %d", 123, events[1].(*NotificationEvent).Notification.ID)
}
if events[2].(*DeleteEvent).ID != 1234567 {
t.Fatalf("want %d but %d", 1234567, events[2].(*DeleteEvent).ID)
}
if errorEvent, ok := events[3].(*ErrorEvent); !ok {
t.Fatalf("should be fail: %v", errorEvent.err)
}
}
func TestStreamingWS(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(wsMock))
defer ts.Close()
client := NewClient(&Config{Server: ":"}).NewWSClient()
_, err := client.StreamingWSPublicLocal(context.Background())
if err == nil {
t.Fatalf("should be fail: %v", err)
}
client = NewClient(&Config{Server: ts.URL}).NewWSClient()
ctx, cancel := context.WithCancel(context.Background())
cancel()
q, err := client.StreamingWSPublicLocal(ctx)
if err != nil {
t.Fatalf("should not be fail: %v", err)
}
go func() {
e := <-q
if errorEvent, ok := e.(*ErrorEvent); !ok {
t.Fatalf("should be fail: %v", errorEvent.err)
}
}()
}
func TestHandleWS(t *testing.T) {
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
u := websocket.Upgrader{}
conn, err := u.Upgrade(w, r, nil)
if err != nil {
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
defer conn.Close()
err = conn.WriteMessage(websocket.TextMessage,
[]byte(`<html></html>`))
if err != nil {
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
time.Sleep(10 * time.Second)
}))
defer ts.Close()
q := make(chan Event)
client := NewClient(&Config{}).NewWSClient()
go func() {
e := <-q
if errorEvent, ok := e.(*ErrorEvent); !ok {
t.Fatalf("should be fail: %v", errorEvent.err)
}
}()
err := client.handleWS(context.Background(), ":", q)
if err == nil {
t.Fatalf("should be fail: %v", err)
}
ctx, cancel := context.WithCancel(context.Background())
cancel()
go func() {
e := <-q
if errorEvent, ok := e.(*ErrorEvent); !ok {
t.Fatalf("should be fail: %v", errorEvent.err)
}
}()
err = client.handleWS(ctx, "ws://"+ts.Listener.Addr().String(), q)
if err == nil {
t.Fatalf("should be fail: %v", err)
}
go func() {
e := <-q
if errorEvent, ok := e.(*ErrorEvent); !ok {
t.Fatalf("should be fail: %v", errorEvent.err)
}
}()
client.handleWS(context.Background(), "ws://"+ts.Listener.Addr().String(), q)
}
func TestDialRedirect(t *testing.T) {
client := NewClient(&Config{}).NewWSClient()
_, err := client.dialRedirect(":")
if err == nil {
t.Fatalf("should be fail: %v", err)
}
}
func TestDial(t *testing.T) {
canErr := true
ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if canErr {
canErr = false
http.Redirect(w, r, ":", http.StatusMovedPermanently)
return
}
http.Redirect(w, r, "http://www.example.com/", http.StatusMovedPermanently)
}))
defer ts.Close()
client := NewClient(&Config{}).NewWSClient()
_, _, err := client.dial(":")
if err == nil {
t.Fatalf("should be fail: %v", err)
}
_, rawurl, err := client.dial("ws://" + ts.Listener.Addr().String())
if err == nil {
t.Fatalf("should be fail: %v", err)
}
_, rawurl, err = client.dial("ws://" + ts.Listener.Addr().String())
if err != nil {
t.Fatalf("should not be fail: %v", err)
}
if rawurl != "ws://www.example.com/" {
t.Fatalf("want %q but %q", "ws://www.example.com/", rawurl)
}
}
func TestChangeWebSocketScheme(t *testing.T) {
_, err := changeWebSocketScheme(":")
if err == nil {
t.Fatalf("should be fail: %v", err)
}
u, err := changeWebSocketScheme("http://example.com/")
if err != nil {
t.Fatalf("should not be fail: %v", err)
}
if u.Scheme != "ws" {
t.Fatalf("want %q but %q", "ws", u.Scheme)
}
u, err = changeWebSocketScheme("https://example.com/")
if err != nil {
t.Fatalf("should not be fail: %v", err)
}
if u.Scheme != "wss" {
t.Fatalf("want %q but %q", "wss", u.Scheme)
}
}