lnt: profile encoding and how objects are stripped

Change-Id: I954d942ff54ca482ec8f4b53d70433f7f404159b

Author: TamarChristinaArm

lnt/server/ui/profile_views.py

@@ -110,7 +110,7 @@ def v4_profile_ajax_getCodeForFunction():
     runid = request.args.get('runid')
     testid = request.args.get('testid')
     f_enc = request.args.get('f')
-    f = base64.b64decode(f_enc)
+    f = base64.b64decode(f_enc).decode("utf-8")
 
     profileDir = current_app.old_config.profileDir
 

lnt/server/ui/static/lnt_profile.js

@@ -451,6 +451,15 @@ function startsWith(string, startString) {
     return string.substr(0, startString.length) === startString;
 }
 
+/**
+ * Unicode to ASCII (encode data to Base64)
+ * @param {string} data
+ * @return {string}
+ */
+function utoa(data) {
+        return btoa(unescape(encodeURIComponent(data)));
+}
+
 Profile.prototype = {
     reset: function() {
         $(this.element).empty();
@@ -470,7 +479,7 @@ Profile.prototype = {
     },
 
     _fetch_and_display: function(fname, then) {
-        fname_encoded = btoa (fname)
+        fname_encoded = utoa (fname)
         this.function_name = fname_encoded;
         var this_ = this;
         $.ajax(g_urls.getCodeForFunction, {
@@ -1078,7 +1087,10 @@ function FunctionTypeahead(element, options) {
             // FIXME: the item isn't passed in as json any more, it's
             // been rendered. Lame. Hack around this by splitting apart
             // the ','-concatenated 2-tuple again.
-            fname = item.split(',')[0];
+            // tamar: with C++ symbols demangled we have natural ,s in the
+            //        string so we can't blindly lop off ,.  Instead lets just
+            //        do a safer substring on ,[object Object].
+            fname = item.substr(0, item.length - ",[object Object]".length);
 
             options.updated(fname);
             return fname;