Easybridge has an avatar

appservice/server.go

@@ -45,6 +45,12 @@ func Start(r *mxlib.Registration, c *Config) (chan error, error) {
 	if err != nil {
 		return nil, err
 	}
+	err = mx.ProfileAvatar(ezbrMxId(), &connector.FileMediaObject{
+		Path: "easybridge.jpg",
+	})
+	if err != nil {
+		return nil, err
+	}
 
 	router := mux.NewRouter()
 	router.HandleFunc("/_matrix/app/v1/transactions/{txnId}", handleTxn)

connector/connector.go

@@ -1,5 +1,9 @@
 package connector
 
+import (
+	"io"
+)
+
 /*
 	A generic connector framework for instant messaging protocols.
 
@@ -126,13 +130,14 @@ type RoomInfo struct {
 }
 
 type MediaObject interface {
-	Size() int
+	Filename() string
-	MimeType() string
+	Size() int64
+	Mimetype() string
 
-	// AsBytes: must always be implemented
+	// Read: must always be implemented
-	AsBytes() ([]byte, error)
+	Read() (io.ReadCloser, error)
 
-	// AsString: not mandatory, may return an empty string
+	// URL(): not mandatory, may return an empty string
-	// If so, AsBytes() is the only way to retrieve the object
+	// If so, Read() is the only way to retrieve the object
-	AsURL() string
+	URL() string
 }

connector/mediaobject.go

@@ -0,0 +1,50 @@
+package connector
+
+import (
+	"io"
+	"net/http"
+	"os"
+	"path/filepath"
+
+	log "github.com/sirupsen/logrus"
+)
+
+type FileMediaObject struct {
+	Path string
+}
+
+func (m *FileMediaObject) Filename() string {
+	return filepath.Base(m.Path)
+}
+
+func (m *FileMediaObject) Size() int64 {
+	fi, err := os.Stat(m.Path)
+	if err != nil {
+		log.Fatal(err)
+	}
+	return fi.Size()
+}
+
+func (m *FileMediaObject) Mimetype() string {
+	f, err := os.Open(m.Path)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer f.Close()
+
+	buffer := make([]byte, 512)
+	_, err = f.Read(buffer)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	return http.DetectContentType(buffer)
+}
+
+func (m *FileMediaObject) Read() (io.ReadCloser, error) {
+	return os.Open(m.Path)
+}
+
+func (m *FileMediaObject) URL() string {
+	return ""
+}

main.go

@@ -200,7 +200,7 @@ func main() {
 			}
 			conn.SetHandler(account)
 			appservice.AddAccount(account)
-			go connectAndJoin(conn, params)
+			go connectAndJoin(account, params)
 		}
 	}
 
@@ -210,15 +210,15 @@ func main() {
 	}
 }
 
-func connectAndJoin(conn connector.Connector, params ConfigAccount) {
+func connectAndJoin(account *appservice.Account, params ConfigAccount) {
 	log.Printf("Connecting to %s", params.Protocol)
-	err := conn.Configure(params.Config)
+	err := account.Conn.Configure(params.Config)
 	if err != nil {
 		log.Printf("Could not connect to %s: %s", params.Protocol, err)
 	} else {
 		log.Printf("Connected to %s, now joining %#v", params.Protocol, params.Rooms)
 		for _, room := range params.Rooms {
-			err := conn.Join(connector.RoomID(room))
+			err := account.Conn.Join(connector.RoomID(room))
 			if err != nil {
 				log.Printf("Could not join %s: %s", room, err)
 			}

mxlib/api.go

@@ -83,3 +83,11 @@ type RoomJoinResponse struct {
 type RoomSendResponse struct {
 	EventId string `json:"event_id"`
 }
+
+type UploadResponse struct {
+	ContentUri string `json:"content_uri"`
+}
+
+type ProfileAvatarUrl struct {
+	AvatarUrl string `json:"avatar_url"`
+}

mxlib/client.go

@@ -1,6 +1,7 @@
 package mxlib
 
 import (
+	"strings"
 	"bytes"
 	"encoding/json"
 	"fmt"
@@ -9,6 +10,8 @@ import (
 	"time"
 
 	log "github.com/sirupsen/logrus"
+
+	"git.deuxfleurs.fr/Deuxfleurs/easybridge/connector"
 )
 
 type Client struct {
@@ -123,6 +126,29 @@ func (mx *Client) ProfileDisplayname(userid string, displayname string) error {
 	return err
 }
 
+func (mx *Client) ProfileAvatar(userid string, m connector.MediaObject) error {
+	var mxc *MediaObject
+	if mxm, ok := m.(*MediaObject); ok {
+		mxc = mxm
+	} else {
+		mxm, err := mx.UploadMedia(m)
+		if err != nil {
+			return err
+		}
+		mxc = mxm
+	}
+	mxc_uri := fmt.Sprintf("mxc://%s/%s", mxc.MxcServer, mxc.MxcMediaId)
+
+	req := ProfileAvatarUrl{
+		AvatarUrl: mxc_uri,
+	}
+	var rep struct{}
+	err := mx.PutApiCall(fmt.Sprintf("/_matrix/client/r0/profile/%s/avatar_url?user_id=%s",
+		url.QueryEscape(userid), url.QueryEscape(userid)),
+		&req, &rep)
+	return err
+}
+
 func (mx *Client) DirectoryRoom(alias string) (string, error) {
 	var rep DirectoryRoomResponse
 	err := mx.GetApiCall("/_matrix/client/r0/directory/room/"+url.QueryEscape(alias), &rep)
@@ -252,3 +278,39 @@ func (mx *Client) RoomTopicAs(room string, topic string, as_user string) error {
 	}
 	return mx.PutStateAs(room, "m.room.topic", "", content, as_user)
 }
+
+func (mx *Client) UploadMedia(m connector.MediaObject) (*MediaObject, error) {
+	reader, err := m.Read()
+	if err != nil {
+		return nil, err
+	}
+	defer reader.Close()
+
+	req, err := http.NewRequest("POST",
+		mx.Server+"/_matrix/media/r0/upload?filename="+url.QueryEscape(m.Filename()),
+		reader)
+	req.Header.Add("Content-Type", m.Mimetype())
+	req.ContentLength = m.Size()
+
+	var resp UploadResponse
+	err = mx.DoAndParse(req, &resp)
+	if err != nil {
+		return nil, err
+	}
+
+	mxc := strings.Split(strings.Replace(resp.ContentUri, "mxc://", "", 1), "/")
+	if len(mxc) != 2 {
+		return nil, fmt.Errorf("Invalid mxc:// returned: %s", resp.ContentUri)
+	}
+
+	media := &MediaObject{
+		mxClient: mx,
+		filename: m.Filename(),
+		size: m.Size(),
+		mimetype: m.Mimetype(),
+		MxcServer: mxc[0],
+		MxcMediaId: mxc[1],
+	}
+	return media, nil
+}
+

mxlib/mediaobject.go

@@ -0,0 +1,54 @@
+package mxlib
+
+import (
+	"io"
+	"fmt"
+	"net/url"
+	"net/http"
+)
+
+type MediaObject struct {
+	mxClient *Client
+	filename string
+	size int64
+	mimetype string
+	MxcServer string
+	MxcMediaId string
+}
+
+func (m *MediaObject) Filename() string {
+	return m.filename
+}
+
+func (m *MediaObject) Size() int64 {
+	return m.size
+}
+
+func (m *MediaObject) Mimetype() string {
+	return m.mimetype
+}
+
+func (m *MediaObject) Read() (io.ReadCloser, error) {
+	req, err := http.NewRequest("GET", m.URL(), nil)
+	if err != nil {
+		return nil, err
+	}
+
+	req.Header.Add("Authorization", "Bearer "+m.mxClient.Token)
+
+	resp, err := m.mxClient.httpClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		return nil, fmt.Errorf("HTTP error %d", resp.StatusCode)
+	}
+
+	return resp.Body, nil
+}
+
+func (m *MediaObject) URL() string {
+	return fmt.Sprintf("%s/_matrix/media/r0/download/%s/%s/%s",
+		m.mxClient.Server, m.MxcServer, m.MxcMediaId, url.QueryEscape(m.filename))
+}