Refactor: move all mx* functions to mxlib/client.go

8 files changed, 328 insertions, 317 deletions

diff --git a/appservice/account.go b/appservice/account.go
index e507230..311f266 100644
--- a/appservice/account.go
+++ b/appservice/account.go
@@ -81,7 +81,7 @@ func (a *Account) joinedInternal(roomId RoomID) error {
 
 	log.Debugf("Joined %s (%s)\n", roomId, a.MatrixUser)
 
-	err = mxRoomInvite(mx_room_id, a.MatrixUser)
+	err = mx.RoomInvite(mx_room_id, a.MatrixUser)
 	if err != nil && strings.Contains(err.Error(), "already in the room") {
 		err = nil
 	}
@@ -107,7 +107,7 @@ func (a *Account) leftInternal(roomId RoomID) error {
 
 	log.Printf("Left %s (%s)\n", roomId, a.MatrixUser)
 
-	err = mxRoomKick(mx_room_id, a.MatrixUser, fmt.Sprintf("got leave room event on %s", a.Protocol))
+	err = mx.RoomKick(mx_room_id, a.MatrixUser, fmt.Sprintf("got leave room event on %s", a.Protocol))
 	if err != nil && strings.Contains(err.Error(), "not in the room") {
 		err = nil
 	}
@@ -130,7 +130,7 @@ func (a *Account) userInfoUpdatedInternal(user UserID, info *UserInfo) error {
 	}
 
 	if info.DisplayName != "" {
-		err2 := mxProfileDisplayname(mx_user_id, fmt.Sprintf("%s (%s)", info.DisplayName, a.Protocol))
+		err2 := mx.ProfileDisplayname(mx_user_id, fmt.Sprintf("%s (%s)", info.DisplayName, a.Protocol))
 		if err2 != nil {
 			err = err2
 		}
@@ -167,7 +167,7 @@ func (a *Account) roomInfoUpdatedInternal(roomId RoomID, author UserID, info *Ro
 	}
 
 	if info.Topic != "" {
-		err2 := mxRoomTopicAs(mx_room_id, info.Topic, as_mxid)
+		err2 := mx.RoomTopicAs(mx_room_id, info.Topic, as_mxid)
 		if err2 != nil {
 			err = err2
 		}
@@ -175,7 +175,7 @@ func (a *Account) roomInfoUpdatedInternal(roomId RoomID, author UserID, info *Ro
 
 	if info.Name != "" {
 		name := fmt.Sprintf("%s (%s)", info.Name, a.Protocol)
-		err2 := mxRoomNameAs(mx_room_id, name, as_mxid)
+		err2 := mx.RoomNameAs(mx_room_id, name, as_mxid)
 		if err2 != nil {
 			err = err2
 		}
@@ -211,7 +211,7 @@ func (a *Account) eventInternal(event *Event) error {
 			return err
 		}
 
-		err = mxRoomInvite(mx_room_id, mx_user_id)
+		err = mx.RoomInvite(mx_room_id, mx_user_id)
 		if err != nil {
 			if strings.Contains(err.Error(), "already in the room") {
 				err = nil
@@ -219,7 +219,7 @@ func (a *Account) eventInternal(event *Event) error {
 			return err
 		}
 
-		return mxRoomJoinAs(mx_room_id, mx_user_id)
+		return mx.RoomJoinAs(mx_room_id, mx_user_id)
 	} else if event.Type == EVENT_LEAVE {
 		log.Printf("%s join %s %s", a.Protocol, event.Author, event.Room)
 		mx_room_id, err := dbGetMxRoom(a.Protocol, event.Room)
@@ -227,7 +227,7 @@ func (a *Account) eventInternal(event *Event) error {
 			return err
 		}
 
-		return mxRoomLeaveAs(mx_room_id, mx_user_id)
+		return mx.RoomLeaveAs(mx_room_id, mx_user_id)
 	} else {
 		log.Printf("%s msg %s %s", a.Protocol, event.Author, event.Room)
 		mx_room_id := ""
@@ -249,6 +249,6 @@ func (a *Account) eventInternal(event *Event) error {
 			typ = "m.emote"
 		}
 
-		return mxSendMessageAs(mx_room_id, typ, event.Text, mx_user_id)
+		return mx.SendMessageAs(mx_room_id, typ, event.Text, mx_user_id)
 	}
 }
diff --git a/appservice/db.go b/appservice/db.go
index 6423b95..5cefd30 100644
--- a/appservice/db.go
+++ b/appservice/db.go
@@ -88,13 +88,13 @@ func dbGetMxRoom(protocol string, roomId connector.RoomID) (string, error) {
 	if must_create {
 		alias := roomAlias(protocol, roomId)
 		// Lookup alias
-		mx_room_id, err := mxDirectoryRoom(fmt.Sprintf("#%s:%s", alias, config.MatrixDomain))
+		mx_room_id, err := mx.DirectoryRoom(fmt.Sprintf("#%s:%s", alias, config.MatrixDomain))
 
 		// If no alias found, create room
 		if err != nil {
 			name := fmt.Sprintf("%s (%s)", roomId, protocol)
 
-			mx_room_id, err = mxCreateRoom(name, alias, []string{})
+			mx_room_id, err = mx.CreateRoom(name, alias, []string{})
 			if err != nil {
 				log.Printf("Could not create room for %s: %s", name, err)
 				return "", err
@@ -125,7 +125,7 @@ func dbGetMxPmRoom(protocol string, them connector.UserID, themMxId string, usMx
 	if must_create {
 		name := fmt.Sprintf("%s (%s)", them, protocol)
 
-		mx_room_id, err := mxCreateDirectRoomAs([]string{usMxId}, themMxId)
+		mx_room_id, err := mx.CreateDirectRoomAs([]string{usMxId}, themMxId)
 		if err != nil {
 			log.Printf("Could not create room for %s: %s", name, err)
 			return "", err
@@ -161,7 +161,7 @@ func dbGetMxUser(protocol string, userId connector.UserID) (string, error) {
 	if must_create {
 		username := userMxId(protocol, userId)
 
-		err := mxRegisterUser(username)
+		err := mx.RegisterUser(username)
 		if err != nil {
 			if mxE, ok := err.(*mxlib.MxError); !ok || mxE.ErrCode != "M_USER_IN_USE" {
 				log.Printf("Could not register %s: %s", username, err)
@@ -170,7 +170,7 @@ func dbGetMxUser(protocol string, userId connector.UserID) (string, error) {
 		}
 
 		mxid := fmt.Sprintf("@%s:%s", username, config.MatrixDomain)
-		mxProfileDisplayname(mxid, fmt.Sprintf("%s (%s)", userId, protocol))
+		mx.ProfileDisplayname(mxid, fmt.Sprintf("%s (%s)", userId, protocol))
 
 		user = DbUserMap{
 			Protocol: protocol,
diff --git a/appservice/matrix.go b/appservice/matrix.go
deleted file mode 100644
index 6b99992..0000000
--- a/appservice/matrix.go
+++ /dev/null
@@ -1,275 +0,0 @@
-package appservice
-
-import (
-	"bytes"
-	"encoding/json"
-	"fmt"
-	"net/http"
-	"net/url"
-	"time"
-
-	log "github.com/sirupsen/logrus"
-
-	"git.deuxfleurs.fr/Deuxfleurs/easybridge/connector"
-	. "git.deuxfleurs.fr/Deuxfleurs/easybridge/mxlib"
-)
-
-const EASYBRIDGE_SYSTEM_PROTOCOL string = "✯◡✯"
-
-func ezbrMxId() string {
-	return fmt.Sprintf("@%s:%s", registration.SenderLocalpart, config.MatrixDomain)
-}
-
-func ezbrSystemRoom(user_mx_id string) (string, error) {
-	return dbGetMxPmRoom(EASYBRIDGE_SYSTEM_PROTOCOL, connector.UserID("Easybridge"), ezbrMxId(), user_mx_id, "easybridge")
-}
-
-func ezbrSystemSend(user_mx_id string, msg string) {
-	mx_room_id, err := ezbrSystemRoom(user_mx_id)
-	if err == nil {
-		err = mxSendMessageAs(mx_room_id, "m.text", msg, ezbrMxId())
-	}
-	if err != nil {
-		log.Warnf("(%s) %s", user_mx_id, msg)
-	}
-}
-
-func ezbrSystemSendf(user_mx_id string, format string, args ...interface{}) {
-	ezbrSystemSend(user_mx_id, fmt.Sprintf(format, args...))
-}
-
-// ----
-
-var httpClient *http.Client
-
-func init() {
-	tr := &http.Transport{
-		MaxIdleConns:       10,
-		IdleConnTimeout:    30 * time.Second,
-		DisableCompression: true,
-	}
-	httpClient = &http.Client{Transport: tr}
-}
-
-func mxGetApiCall(endpoint string, response interface{}) error {
-	log.Debugf("Matrix GET request: %s\n", endpoint)
-
-	req, err := http.NewRequest("GET", config.Server+endpoint, nil)
-	if err != nil {
-		return err
-	}
-
-	return mxDoAndParse(req, response)
-}
-
-func mxPutApiCall(endpoint string, data interface{}, response interface{}) error {
-	body, err := json.Marshal(data)
-	if err != nil {
-		return err
-	}
-
-	log.Debugf("Matrix PUT request: %s %s\n", endpoint, string(body))
-
-	req, err := http.NewRequest("PUT", config.Server+endpoint, bytes.NewBuffer(body))
-	if err != nil {
-		return err
-	}
-	req.Header.Add("Content-Type", "application/json")
-
-	return mxDoAndParse(req, response)
-}
-
-func mxPostApiCall(endpoint string, data interface{}, response interface{}) error {
-	body, err := json.Marshal(data)
-	if err != nil {
-		return err
-	}
-
-	log.Debugf("Matrix POST request: %s %s\n", endpoint, string(body))
-
-	req, err := http.NewRequest("POST", config.Server+endpoint, bytes.NewBuffer(body))
-	if err != nil {
-		return err
-	}
-	req.Header.Add("Content-Type", "application/json")
-
-	return mxDoAndParse(req, response)
-}
-
-func mxDoAndParse(req *http.Request, response interface{}) error {
-	req.Header.Add("Authorization", "Bearer "+registration.AsToken)
-
-	resp, err := httpClient.Do(req)
-	if err != nil {
-		return err
-	}
-
-	if resp.StatusCode != http.StatusOK {
-		var e MxError
-		err = json.NewDecoder(resp.Body).Decode(&e)
-		if err != nil {
-			return err
-		}
-		log.Debugf("Response (%d): %#v\n", resp.StatusCode, e)
-		return &e
-	}
-
-	err = json.NewDecoder(resp.Body).Decode(response)
-	if err != nil {
-		return err
-	}
-
-	log.Debugf("Response: %#v\n", response)
-	return nil
-}
-
-// ----
-
-func mxRegisterUser(username string) error {
-	req := RegisterRequest{
-		Username: username,
-	}
-	var rep RegisterResponse
-	return mxPostApiCall("/_matrix/client/r0/register?kind=user", &req, &rep)
-}
-
-func mxProfileDisplayname(userid string, displayname string) error {
-	req := ProfileDisplaynameRequest{
-		Displayname: displayname,
-	}
-	var rep struct{}
-	err := mxPutApiCall(fmt.Sprintf("/_matrix/client/r0/profile/%s/displayname?user_id=%s",
-		url.QueryEscape(userid), url.QueryEscape(userid)),
-		&req, &rep)
-	return err
-}
-
-func mxDirectoryRoom(alias string) (string, error) {
-	var rep DirectoryRoomResponse
-	err := mxGetApiCall("/_matrix/client/r0/directory/room/"+url.QueryEscape(alias), &rep)
-	if err != nil {
-		return "", err
-	}
-	return rep.RoomId, nil
-}
-
-func mxCreateRoom(name string, alias string, invite []string) (string, error) {
-	rq := CreateRoomRequest{
-		Preset:        "private_chat",
-		RoomAliasName: alias,
-		Name:          name,
-		Topic:         "",
-		Invite:        invite,
-		CreationContent: map[string]interface{}{
-			"m.federate": false,
-		},
-		PowerLevels: map[string]interface{}{
-			"invite": 100,
-			"events": map[string]interface{}{
-				"m.room.topic":  0,
-				"m.room.avatar": 0,
-			},
-		},
-	}
-	var rep CreateRoomResponse
-	err := mxPostApiCall("/_matrix/client/r0/createRoom", &rq, &rep)
-	if err != nil {
-		return "", err
-	}
-	return rep.RoomId, nil
-}
-
-func mxCreateDirectRoomAs(invite []string, as_user string) (string, error) {
-	rq := CreateDirectRoomRequest{
-		Preset: "private_chat",
-		Topic:  "",
-		Invite: invite,
-		CreationContent: map[string]interface{}{
-			"m.federate": false,
-		},
-		PowerLevels: map[string]interface{}{
-			"invite": 100,
-		},
-		IsDirect: true,
-	}
-	var rep CreateRoomResponse
-	err := mxPostApiCall("/_matrix/client/r0/createRoom?user_id="+url.QueryEscape(as_user), &rq, &rep)
-	if err != nil {
-		return "", err
-	}
-	return rep.RoomId, nil
-}
-
-func mxRoomInvite(room string, user string) error {
-	rq := RoomInviteRequest{
-		UserId: user,
-	}
-	var rep struct{}
-	err := mxPostApiCall("/_matrix/client/r0/rooms/"+url.QueryEscape(room)+"/invite", &rq, &rep)
-	return err
-}
-
-func mxRoomKick(room string, user string, reason string) error {
-	rq := RoomKickRequest{
-		UserId: user,
-		Reason: reason,
-	}
-	var rep struct{}
-	err := mxPostApiCall("/_matrix/client/r0/rooms/"+url.QueryEscape(room)+"/kick", &rq, &rep)
-	return err
-}
-
-func mxRoomJoinAs(room string, user string) error {
-	rq := struct{}{}
-	var rep RoomJoinResponse
-	err := mxPostApiCall("/_matrix/client/r0/rooms/"+url.QueryEscape(room)+"/join?user_id="+url.QueryEscape(user), &rq, &rep)
-	return err
-}
-
-func mxRoomLeaveAs(room string, user string) error {
-	rq := struct{}{}
-	var rep struct{}
-	err := mxPostApiCall("/_matrix/client/r0/rooms/"+url.QueryEscape(room)+"/leave?user_id="+url.QueryEscape(user), &rq, &rep)
-	return err
-}
-
-func mxSendAs(room string, event_type string, content map[string]interface{}, user string) error {
-	txn_id := time.Now().UnixNano()
-	var rep RoomSendResponse
-	err := mxPutApiCall(fmt.Sprintf(
-		"/_matrix/client/r0/rooms/%s/send/%s/%d?user_id=%s",
-		url.QueryEscape(room), event_type, txn_id, url.QueryEscape(user)),
-		&content, &rep)
-	return err
-}
-
-func mxSendMessageAs(room string, typ string, body string, user string) error {
-	content := map[string]interface{}{
-		"msgtype": typ,
-		"body":    body,
-	}
-	return mxSendAs(room, "m.room.message", content, user)
-}
-
-func mxPutStateAs(room string, event_type string, key string, content map[string]interface{}, as_user string) error {
-	var rep RoomSendResponse
-	err := mxPutApiCall(fmt.Sprintf(
-		"/_matrix/client/r0/rooms/%s/state/%s/%s?user_id=%s",
-		url.QueryEscape(room), event_type, key, url.QueryEscape(as_user)),
-		&content, &rep)
-	return err
-}
-
-func mxRoomNameAs(room string, name string, as_user string) error {
-	content := map[string]interface{}{
-		"name": name,
-	}
-	return mxPutStateAs(room, "m.room.name", "", content, as_user)
-}
-
-func mxRoomTopicAs(room string, topic string, as_user string) error {
-	content := map[string]interface{}{
-		"topic": topic,
-	}
-	return mxPutStateAs(room, "m.room.topic", "", content, as_user)
-}
diff --git a/appservice/names.go b/appservice/names.go
deleted file mode 100644
index 9ed00f8..0000000
--- a/appservice/names.go
+++ /dev/null
@@ -1,23 +0,0 @@
-package appservice
-
-import (
-	"fmt"
-	"strings"
-
-	. "git.deuxfleurs.fr/Deuxfleurs/easybridge/connector"
-)
-
-func roomAlias(protocol string, id RoomID) string {
-	return fmt.Sprintf("_ezbr__%s__%s", safeStringForId(string(id)), protocol)
-}
-
-func userMxId(protocol string, id UserID) string {
-	return fmt.Sprintf("_ezbr__%s__%s", safeStringForId(string(id)), protocol)
-}
-
-func safeStringForId(in string) string {
-	id2 := strings.ReplaceAll(in, "#", "")
-	id2 = strings.ReplaceAll(id2, "@", "__")
-	id2 = strings.ReplaceAll(id2, ":", "_")
-	return id2
-}
diff --git a/appservice/server.go b/appservice/server.go
index aa43935..d3ecb43 100644
--- a/appservice/server.go
+++ b/appservice/server.go
@@ -24,20 +24,24 @@ type Config struct {
 var registration *mxlib.Registration
 var config *Config
 
+var mx *mxlib.Client
+
 func Start(r *mxlib.Registration, c *Config) (chan error, error) {
 	registration = r
 	config = c
 
+	mx = mxlib.NewClient(c.Server, r.AsToken)
+
 	err := InitDb()
 	if err != nil {
 		return nil, err
 	}
 
-	err = mxRegisterUser(registration.SenderLocalpart)
+	err = mx.RegisterUser(registration.SenderLocalpart)
 	if mxe, ok := err.(*mxlib.MxError); !ok || mxe.ErrCode != "M_USER_IN_USE" {
 		return nil, err
 	}
-	err = mxProfileDisplayname(ezbrMxId(), fmt.Sprintf("Easybridge (%s)", EASYBRIDGE_SYSTEM_PROTOCOL))
+	err = mx.ProfileDisplayname(ezbrMxId(), fmt.Sprintf("Easybridge (%s)", EASYBRIDGE_SYSTEM_PROTOCOL))
 	if err != nil {
 		return nil, err
 	}
@@ -134,7 +138,7 @@ func handleTxnEvent(e *mxlib.Event) error {
 				ev.Room = room.RoomID
 				return acct.Conn.Send(ev)
 			} else {
-				mxRoomKick(e.RoomId, e.Sender, fmt.Sprintf("Not present in %s on %s, please talk with Easybridge to rejoin", room.RoomID, room.Protocol))
+				mx.RoomKick(e.RoomId, e.Sender, fmt.Sprintf("Not present in %s on %s, please talk with Easybridge to rejoin", room.RoomID, room.Protocol))
 				return fmt.Errorf("not joined %s on %s", room.RoomID, room.Protocol)
 			}
 		} else {
@@ -146,7 +150,7 @@ func handleTxnEvent(e *mxlib.Event) error {
 			if pm_room := dbIsPmRoom(e.RoomId); pm_room != nil {
 				// If leaving a PM room, we must delete it
 				them_mx := userMxId(pm_room.Protocol, pm_room.UserID)
-				mxRoomLeaveAs(e.RoomId, them_mx)
+				mx.RoomLeaveAs(e.RoomId, them_mx)
 				db.Delete(pm_room)
 				return nil
 			} else if room := dbIsPublicRoom(e.RoomId); room != nil {
@@ -157,7 +161,7 @@ func handleTxnEvent(e *mxlib.Event) error {
 					return nil
 					// TODO: manage autojoin list, remove this room
 				} else {
-					mxRoomKick(e.RoomId, e.Sender, fmt.Sprintf("Not present in %s on %s, please talk with Easybridge to rejoin", room.RoomID, room.Protocol))
+					mx.RoomKick(e.RoomId, e.Sender, fmt.Sprintf("Not present in %s on %s, please talk with Easybridge to rejoin", room.RoomID, room.Protocol))
 					return fmt.Errorf("not joined %s on %s", room.RoomID, room.Protocol)
 				}
 			} else {
diff --git a/appservice/util.go b/appservice/util.go
new file mode 100644
index 0000000..4175fb0
--- /dev/null
+++ b/appservice/util.go
@@ -0,0 +1,51 @@
+package appservice
+
+import (
+	"fmt"
+	"strings"
+
+	log "github.com/sirupsen/logrus"
+
+	. "git.deuxfleurs.fr/Deuxfleurs/easybridge/connector"
+)
+
+const EASYBRIDGE_SYSTEM_PROTOCOL string = "✯◡✯"
+
+func ezbrMxId() string {
+	return fmt.Sprintf("@%s:%s", registration.SenderLocalpart, config.MatrixDomain)
+}
+
+func ezbrSystemRoom(user_mx_id string) (string, error) {
+	return dbGetMxPmRoom(EASYBRIDGE_SYSTEM_PROTOCOL, UserID("Easybridge"), ezbrMxId(), user_mx_id, "easybridge")
+}
+
+func ezbrSystemSend(user_mx_id string, msg string) {
+	mx_room_id, err := ezbrSystemRoom(user_mx_id)
+	if err == nil {
+		err = mx.SendMessageAs(mx_room_id, "m.text", msg, ezbrMxId())
+	}
+	if err != nil {
+		log.Warnf("(%s) %s", user_mx_id, msg)
+	}
+}
+
+func ezbrSystemSendf(user_mx_id string, format string, args ...interface{}) {
+	ezbrSystemSend(user_mx_id, fmt.Sprintf(format, args...))
+}
+
+// ----
+
+func roomAlias(protocol string, id RoomID) string {
+	return fmt.Sprintf("_ezbr__%s__%s", safeStringForId(string(id)), protocol)
+}
+
+func userMxId(protocol string, id UserID) string {
+	return fmt.Sprintf("_ezbr__%s__%s", safeStringForId(string(id)), protocol)
+}
+
+func safeStringForId(in string) string {
+	id2 := strings.ReplaceAll(in, "#", "")
+	id2 = strings.ReplaceAll(id2, "@", "__")
+	id2 = strings.ReplaceAll(id2, ":", "_")
+	return id2
+}
diff --git a/easybridge.jpg b/easybridge.jpg
new file mode 100644
index 0000000..b9d83a8
--- /dev/null
+++ b/easybridge.jpg
diff --git a/mxlib/client.go b/mxlib/client.go
new file mode 100644
index 0000000..2385d6e
--- /dev/null
+++ b/mxlib/client.go
@@ -0,0 +1,254 @@
+package mxlib
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"net/url"
+	"time"
+
+	log "github.com/sirupsen/logrus"
+)
+
+type Client struct {
+	Server     string
+	Token      string
+	httpClient *http.Client
+}
+
+func NewClient(server string, token string) *Client {
+	tr := &http.Transport{
+		MaxIdleConns:       10,
+		IdleConnTimeout:    30 * time.Second,
+		DisableCompression: true,
+	}
+	return &Client{
+		Server:     server,
+		Token:      token,
+		httpClient: &http.Client{Transport: tr},
+	}
+}
+
+func (mx *Client) GetApiCall(endpoint string, response interface{}) error {
+	log.Debugf("Matrix GET request: %s\n", endpoint)
+
+	req, err := http.NewRequest("GET", mx.Server+endpoint, nil)
+	if err != nil {
+		return err
+	}
+
+	return mx.DoAndParse(req, response)
+}
+
+func (mx *Client) PutApiCall(endpoint string, data interface{}, response interface{}) error {
+	body, err := json.Marshal(data)
+	if err != nil {
+		return err
+	}
+
+	log.Debugf("Matrix PUT request: %s %s\n", endpoint, string(body))
+
+	req, err := http.NewRequest("PUT", mx.Server+endpoint, bytes.NewBuffer(body))
+	if err != nil {
+		return err
+	}
+	req.Header.Add("Content-Type", "application/json")
+
+	return mx.DoAndParse(req, response)
+}
+
+func (mx *Client) PostApiCall(endpoint string, data interface{}, response interface{}) error {
+	body, err := json.Marshal(data)
+	if err != nil {
+		return err
+	}
+
+	log.Debugf("Matrix POST request: %s %s\n", endpoint, string(body))
+
+	req, err := http.NewRequest("POST", mx.Server+endpoint, bytes.NewBuffer(body))
+	if err != nil {
+		return err
+	}
+	req.Header.Add("Content-Type", "application/json")
+
+	return mx.DoAndParse(req, response)
+}
+
+func (mx *Client) DoAndParse(req *http.Request, response interface{}) error {
+	req.Header.Add("Authorization", "Bearer "+mx.Token)
+
+	resp, err := mx.httpClient.Do(req)
+	if err != nil {
+		return err
+	}
+
+	if resp.StatusCode != http.StatusOK {
+		var e MxError
+		err = json.NewDecoder(resp.Body).Decode(&e)
+		if err != nil {
+			return err
+		}
+		log.Debugf("Response (%d): %#v\n", resp.StatusCode, e)
+		return &e
+	}
+
+	err = json.NewDecoder(resp.Body).Decode(response)
+	if err != nil {
+		return err
+	}
+
+	log.Debugf("Response: %#v\n", response)
+	return nil
+}
+
+// ----
+
+func (mx *Client) RegisterUser(username string) error {
+	req := RegisterRequest{
+		Username: username,
+	}
+	var rep RegisterResponse
+	return mx.PostApiCall("/_matrix/client/r0/register?kind=user", &req, &rep)
+}
+
+func (mx *Client) ProfileDisplayname(userid string, displayname string) error {
+	req := ProfileDisplaynameRequest{
+		Displayname: displayname,
+	}
+	var rep struct{}
+	err := mx.PutApiCall(fmt.Sprintf("/_matrix/client/r0/profile/%s/displayname?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)
+	if err != nil {
+		return "", err
+	}
+	return rep.RoomId, nil
+}
+
+func (mx *Client) CreateRoom(name string, alias string, invite []string) (string, error) {
+	rq := CreateRoomRequest{
+		Preset:        "private_chat",
+		RoomAliasName: alias,
+		Name:          name,
+		Topic:         "",
+		Invite:        invite,
+		CreationContent: map[string]interface{}{
+			"m.federate": false,
+		},
+		PowerLevels: map[string]interface{}{
+			"invite": 100,
+			"events": map[string]interface{}{
+				"m.room.topic":  0,
+				"m.room.avatar": 0,
+			},
+		},
+	}
+	var rep CreateRoomResponse
+	err := mx.PostApiCall("/_matrix/client/r0/createRoom", &rq, &rep)
+	if err != nil {
+		return "", err
+	}
+	return rep.RoomId, nil
+}
+
+func (mx *Client) CreateDirectRoomAs(invite []string, as_user string) (string, error) {
+	rq := CreateDirectRoomRequest{
+		Preset: "private_chat",
+		Topic:  "",
+		Invite: invite,
+		CreationContent: map[string]interface{}{
+			"m.federate": false,
+		},
+		PowerLevels: map[string]interface{}{
+			"invite": 100,
+		},
+		IsDirect: true,
+	}
+	var rep CreateRoomResponse
+	err := mx.PostApiCall("/_matrix/client/r0/createRoom?user_id="+url.QueryEscape(as_user), &rq, &rep)
+	if err != nil {
+		return "", err
+	}
+	return rep.RoomId, nil
+}
+
+func (mx *Client) RoomInvite(room string, user string) error {
+	rq := RoomInviteRequest{
+		UserId: user,
+	}
+	var rep struct{}
+	err := mx.PostApiCall("/_matrix/client/r0/rooms/"+url.QueryEscape(room)+"/invite", &rq, &rep)
+	return err
+}
+
+func (mx *Client) RoomKick(room string, user string, reason string) error {
+	rq := RoomKickRequest{
+		UserId: user,
+		Reason: reason,
+	}
+	var rep struct{}
+	err := mx.PostApiCall("/_matrix/client/r0/rooms/"+url.QueryEscape(room)+"/kick", &rq, &rep)
+	return err
+}
+
+func (mx *Client) RoomJoinAs(room string, user string) error {
+	rq := struct{}{}
+	var rep RoomJoinResponse
+	err := mx.PostApiCall("/_matrix/client/r0/rooms/"+url.QueryEscape(room)+"/join?user_id="+url.QueryEscape(user), &rq, &rep)
+	return err
+}
+
+func (mx *Client) RoomLeaveAs(room string, user string) error {
+	rq := struct{}{}
+	var rep struct{}
+	err := mx.PostApiCall("/_matrix/client/r0/rooms/"+url.QueryEscape(room)+"/leave?user_id="+url.QueryEscape(user), &rq, &rep)
+	return err
+}
+
+func (mx *Client) SendAs(room string, event_type string, content map[string]interface{}, user string) error {
+	txn_id := time.Now().UnixNano()
+	var rep RoomSendResponse
+	err := mx.PutApiCall(fmt.Sprintf(
+		"/_matrix/client/r0/rooms/%s/send/%s/%d?user_id=%s",
+		url.QueryEscape(room), event_type, txn_id, url.QueryEscape(user)),
+		&content, &rep)
+	return err
+}
+
+func (mx *Client) SendMessageAs(room string, typ string, body string, user string) error {
+	content := map[string]interface{}{
+		"msgtype": typ,
+		"body":    body,
+	}
+	return mx.SendAs(room, "m.room.message", content, user)
+}
+
+func (mx *Client) PutStateAs(room string, event_type string, key string, content map[string]interface{}, as_user string) error {
+	var rep RoomSendResponse
+	err := mx.PutApiCall(fmt.Sprintf(
+		"/_matrix/client/r0/rooms/%s/state/%s/%s?user_id=%s",
+		url.QueryEscape(room), event_type, key, url.QueryEscape(as_user)),
+		&content, &rep)
+	return err
+}
+
+func (mx *Client) RoomNameAs(room string, name string, as_user string) error {
+	content := map[string]interface{}{
+		"name": name,
+	}
+	return mx.PutStateAs(room, "m.room.name", "", content, as_user)
+}
+
+func (mx *Client) RoomTopicAs(room string, topic string, as_user string) error {
+	content := map[string]interface{}{
+		"topic": topic,
+	}
+	return mx.PutStateAs(room, "m.room.topic", "", content, as_user)
+}