From f9e0c58f3c0e90b987b7763f020ea5dcbf366779 Mon Sep 17 00:00:00 2001
From: Alex Auvolat <alex@adnab.me>
Date: Mon, 9 Mar 2020 17:41:53 +0100
Subject: Fix revUserId (messenger) and implement search (messenger only for
 now)

---
 connector/connector.go             |  8 ++++++++
 connector/external/external.go     | 29 +++++++++++++++++++++++++++--
 connector/irc/irc.go               |  5 +++++
 connector/mattermost/mattermost.go |  5 +++++
 connector/xmpp/xmpp.go             |  5 +++++
 5 files changed, 50 insertions(+), 2 deletions(-)

(limited to 'connector')

diff --git a/connector/connector.go b/connector/connector.go
index 48fc9e7..c2edda4 100644
--- a/connector/connector.go
+++ b/connector/connector.go
@@ -59,6 +59,9 @@ type Connector interface {
 	// Leave a channel
 	Leave(roomId RoomID)
 
+	// Search for users
+	SearchForUsers(query string) ([]UserSearchResult, error)
+
 	// Send an event. Returns the ID of the created remote message.
 	// This ID is used to deduplicate messages: if it comes back, it should have the same Id
 	// than the one returned here.
@@ -153,6 +156,11 @@ type RoomInfo struct {
 	Picture SMediaObject `json:"picture"`
 }
 
+type UserSearchResult struct {
+	ID          UserID `json:"id"`
+	DisplayName string `json:"display_name"`
+}
+
 type MediaObject interface {
 	Filename() string
 	Size() int64
diff --git a/connector/external/external.go b/connector/external/external.go
index 637e69e..c40d55b 100644
--- a/connector/external/external.go
+++ b/connector/external/external.go
@@ -49,6 +49,7 @@ const (
 	JOIN          = "join"
 	INVITE        = "invite"
 	LEAVE         = "leave"
+	SEARCH        = "search"
 	SEND          = "send"
 	CLOSE         = "close"
 
@@ -64,8 +65,9 @@ const (
 	// reply messages
 	// ezbr -> external: all must wait for a reply!
 	// external -> ezbr: only CACHE_GET produces a reply
-	REP_OK    = "rep_ok"
-	REP_ERROR = "rep_error"
+	REP_OK             = "rep_ok"
+	REP_SEARCH_RESULTS = "rep_search_results"
+	REP_ERROR          = "rep_error"
 )
 
 // ----
@@ -226,6 +228,16 @@ func (m *extMessageWithData) UnmarshalJSON(jj []byte) error {
 		}
 		m.Data = &ev.Data
 		return nil
+	case REP_SEARCH_RESULTS:
+		var ev struct {
+			Data []UserSearchResult `json:"data"`
+		}
+		err := json.Unmarshal(jj, &ev)
+		if err != nil {
+			return err
+		}
+		m.Data = ev.Data
+		return nil
 	case JOINED, LEFT, CACHE_PUT, CACHE_GET, REP_OK, REP_ERROR:
 		return nil
 	default:
@@ -428,6 +440,19 @@ func (ext *External) Leave(room RoomID) {
 	}
 }
 
+func (ext *External) SearchForUsers(query string) ([]UserSearchResult, error) {
+	rep, err := ext.cmd(extMessage{
+		MsgType: SEARCH,
+	}, query)
+	if err != nil {
+		return nil, err
+	}
+	if rep.MsgType != REP_SEARCH_RESULTS {
+		return nil, fmt.Errorf("Invalid result type from external: %s", rep.MsgType)
+	}
+	return rep.Data.([]UserSearchResult), nil
+}
+
 func (ext *External) Send(event *Event) (string, error) {
 	rep, err := ext.cmd(extMessage{
 		MsgType: SEND,
diff --git a/connector/irc/irc.go b/connector/irc/irc.go
index bf36dfe..cf93893 100644
--- a/connector/irc/irc.go
+++ b/connector/irc/irc.go
@@ -198,6 +198,11 @@ func (irc *IRC) Leave(roomId RoomID) {
 	irc.conn.Cmd.Part(ch)
 }
 
+func (irc *IRC) SearchForUsers(query string) ([]UserSearchResult, error) {
+	// TODO
+	return nil, fmt.Errorf("Not implemented")
+}
+
 func (irc *IRC) Send(event *Event) (string, error) {
 	if irc.conn == nil {
 		return "", fmt.Errorf("Not connected")
diff --git a/connector/mattermost/mattermost.go b/connector/mattermost/mattermost.go
index 9410126..4490f2a 100644
--- a/connector/mattermost/mattermost.go
+++ b/connector/mattermost/mattermost.go
@@ -253,6 +253,11 @@ func (mm *Mattermost) Leave(roomId RoomID) {
 	// Not supported? TODO
 }
 
+func (mm *Mattermost) SearchForUsers(query string) ([]UserSearchResult, error) {
+	// TODO
+	return nil, fmt.Errorf("Not implemented")
+}
+
 func (mm *Mattermost) Send(event *Event) (string, error) {
 	post := &model.Post{
 		Message: event.Text,
diff --git a/connector/xmpp/xmpp.go b/connector/xmpp/xmpp.go
index 1f77fdf..483c75e 100644
--- a/connector/xmpp/xmpp.go
+++ b/connector/xmpp/xmpp.go
@@ -306,6 +306,11 @@ func (xm *XMPP) Leave(roomId RoomID) {
 	xm.conn.LeaveMUC(string(roomId))
 }
 
+func (xm *XMPP) SearchForUsers(query string) ([]UserSearchResult, error) {
+	// TODO: search roster
+	return nil, fmt.Errorf("Not implemented")
+}
+
 func (xm *XMPP) Send(event *Event) (string, error) {
 	if event.Attachments != nil && len(event.Attachments) > 0 {
 		for _, at := range event.Attachments {
-- 
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