support binary socket messages

js/term/connection.js

@@ -17,6 +17,14 @@ module.exports = class TermConnection extends EventEmitter {
     this.reconnTimeout = null
     this.forceClosing = false
 
+    this.blobReader = new FileReader()
+    this.blobReader.onload = (evt) => {
+      this.onDecodedWSMessage(this.blobReader.result)
+    }
+    this.blobReader.onerror = (evt) => {
+      console.error(evt)
+    }
+
     this.pageShown = false
 
     this.disconnectTimeout = null
@@ -64,9 +72,8 @@ module.exports = class TermConnection extends EventEmitter {
     this.emit('disconnect', evt.code)
   }
 
-  onWSMessage (evt) {
-    try {
-      switch (evt.data.charAt(0)) {
+  onDecodedWSMessage (str) {
+    switch (str.charAt(0)) {
       case '.':
         // heartbeat, no-op message
         break
@@ -86,7 +93,7 @@ module.exports = class TermConnection extends EventEmitter {
         break
 
       default:
-          this.screen.load(evt.data)
+        this.screen.load(str)
         if (!this.pageShown) {
           window.showPage()
           this.pageShown = true
@@ -94,8 +101,18 @@ module.exports = class TermConnection extends EventEmitter {
         break
     }
     this.heartbeat()
-    } catch (e) {
-      console.error(e)
+  }
+
+  onWSMessage (evt) {
+    if (typeof evt.data === 'string') this.onDecodedWSMessage(evt.data)
+    else {
+      if (this.blobReader.readyState !== 1) {
+        this.blobReader.readAsText(evt.data)
+      } else {
+        setTimeout(() => {
+          this.onWSMessage(evt)
+        }, 1)
+      }
     }
   }