Add command to get e2ee fingerprint

go.mod

@@ -21,7 +21,7 @@ require (
 	golang.org/x/net v0.0.0-20200505041828-1ed23360d12c
 	gopkg.in/toast.v1 v1.0.0-20180812000517-0a84660828b2
 	gopkg.in/yaml.v2 v2.2.8
-	maunium.net/go/mautrix v0.3.2
+	maunium.net/go/mautrix v0.3.3
 	maunium.net/go/mauview v0.1.1
 	maunium.net/go/tcell v0.2.0
 )

go.sum

@@ -95,6 +95,8 @@ maunium.net/go/mautrix v0.3.1 h1:zDhN4PYdWavbssA+9JVoCsUmu/u0LtdHeE647oh3W8c=
 maunium.net/go/mautrix v0.3.1/go.mod h1:SkGZzch8CvU2qKtNpYxtzZ0sQxfVEJ3IsVVLSUBUx9Y=
 maunium.net/go/mautrix v0.3.2 h1:YLTj8euBTxb118XOryghWpsE/aieFI4lG6jCpCmw5HA=
 maunium.net/go/mautrix v0.3.2/go.mod h1:SkGZzch8CvU2qKtNpYxtzZ0sQxfVEJ3IsVVLSUBUx9Y=
+maunium.net/go/mautrix v0.3.3 h1:PV+5oSDaFj3cPTE062O44q/G83x7qfP6gm9kr+BZIgE=
+maunium.net/go/mautrix v0.3.3/go.mod h1:SkGZzch8CvU2qKtNpYxtzZ0sQxfVEJ3IsVVLSUBUx9Y=
 maunium.net/go/mauview v0.1.0 h1:x2WdkKI2zdriJuPAB0CKlwmnHGE7W9xfM5z6RgG+IIg=
 maunium.net/go/mauview v0.1.0/go.mod h1:og9WbzmWe9SNYNyOFlCv8qa9zMcOvG2nzRJ5vYyud9U=
 maunium.net/go/mauview v0.1.1 h1:wfTXyPx3LGAGpTskh+UbBv/QItUWnEpaneHmywoYnfY=

interface/matrix.go

@@ -64,4 +64,17 @@ type MatrixContainer interface {
 	DownloadToDisk(uri id.ContentURI, file *attachment.EncryptedFile, target string) (string, error)
 	GetDownloadURL(uri id.ContentURI) string
 	GetCachePath(uri id.ContentURI) string
+
+	Crypto() Crypto
+}
+
+type Crypto interface {
+	Load() error
+	FlushStore() error
+	ProcessSyncResponse(resp *mautrix.RespSync, since string)
+	HandleMemberEvent(*event.Event)
+	DecryptMegolmEvent(*event.Event) (*event.Event, error)
+	EncryptMegolmEvent(id.RoomID, event.Type, event.Content) (*event.EncryptedEventContent, error)
+	ShareGroupSession(id.RoomID, []id.UserID) error
+	Fingerprint() string
 }

matrix/matrix.go

@@ -55,7 +55,7 @@ import (
 // It is used for all Matrix calls from the UI and Matrix event handlers.
 type Container struct {
 	client  *mautrix.Client
-	crypto  CryptoInterface
+	crypto  ifc.Crypto
 	syncer  *GomuksSyncer
 	gmx     ifc.Gomuks
 	ui      ifc.GomuksUI
@@ -89,14 +89,8 @@ func (log mxLogger) Debugfln(message string, args ...interface{}) {
 	debug.Printf("[Matrix] "+message, args...)
 }
 
-type CryptoInterface interface {
+func (c *Container) Crypto() ifc.Crypto {
-	Load() error
+	return c.crypto
-	FlushStore() error
-	ProcessSyncResponse(resp *mautrix.RespSync, since string)
-	HandleMemberEvent(*event.Event)
-	DecryptMegolmEvent(*event.Event) (*event.Event, error)
-	EncryptMegolmEvent(id.RoomID, event.Type, event.Content) (*event.EncryptedEventContent, error)
-	ShareGroupSession(id.RoomID, []id.UserID) error
 }
 
 // InitClient initializes the mautrix client and connects to the homeserver specified in the config.

ui/command-processor.go

@@ -134,6 +134,8 @@ func NewCommandProcessor(parent *MainView) *CommandProcessor {
 			"hprof":      cmdHeapProfile,
 			"cprof":      cmdCPUProfile,
 			"trace":      cmdTrace,
+
+			"fingerprint": cmdFingerprint,
 		},
 	}
 }

ui/commands.go

@@ -237,7 +237,7 @@ func cmdTag(cmd *Command) {
 		err = cmd.Matrix.Client().AddTag(cmd.Room.MxRoom().ID, cmd.Args[0], order)
 	}
 	if err != nil {
-		cmd.Reply("Failed to add tag:", err)
+		cmd.Reply("Failed to add tag: %v", err)
 	}
 }
 
@@ -248,7 +248,7 @@ func cmdUntag(cmd *Command) {
 	}
 	err := cmd.Matrix.Client().RemoveTag(cmd.Room.MxRoom().ID, cmd.Args[0])
 	if err != nil {
-		cmd.Reply("Failed to remove tag:", err)
+		cmd.Reply("Failed to remove tag: %v", err)
 	}
 }
 
@@ -258,7 +258,16 @@ func cmdRoomNick(cmd *Command) {
 	member.Displayname = strings.Join(cmd.Args, " ")
 	_, err := cmd.Matrix.Client().SendStateEvent(room.ID, event.StateMember, string(room.SessionUserID), member)
 	if err != nil {
-		cmd.Reply("Failed to set room nick:", err)
+		cmd.Reply("Failed to set room nick: %v", err)
+	}
+}
+
+func cmdFingerprint(cmd *Command) {
+	c := cmd.Matrix.Crypto()
+	if c == nil {
+		cmd.Reply("Encryption support is not enabled")
+	} else {
+		cmd.Reply("Device ID: %s\nFingerprint: %s", cmd.Matrix.Client().DeviceID, c.Fingerprint())
 	}
 }
 
@@ -440,7 +449,7 @@ func cmdCreateRoom(cmd *Command) {
 	}
 	room, err := cmd.Matrix.CreateRoom(req)
 	if err != nil {
-		cmd.Reply("Failed to create room:", err)
+		cmd.Reply("Failed to create room: %v", err)
 		return
 	}
 	cmd.MainView.SwitchRoom("", room)
@@ -465,7 +474,7 @@ func cmdPrivateMessage(cmd *Command) {
 	}
 	room, err := cmd.Matrix.CreateRoom(req)
 	if err != nil {
-		cmd.Reply("Failed to create room:", err)
+		cmd.Reply("Failed to create room: %v", err)
 		return
 	}
 	cmd.MainView.SwitchRoom("", room)