1 files changed, 73 insertions, 0 deletions
diff --git a/devtools/shared/jsbeautify/lib/urlencode_unpacker.js b/devtools/shared/jsbeautify/lib/urlencode_unpacker.js
new file mode 100644
index 000000000..b45cd15c0
--- /dev/null
+++ b/devtools/shared/jsbeautify/lib/urlencode_unpacker.js
@@ -0,0 +1,73 @@
+/*global unescape */
+/*jshint curly: false, scripturl: true */
+//
+// trivial bookmarklet/escaped script detector for the javascript beautifier
+// written by Einar Lielmanis <einar@jsbeautifier.org>
+//
+// usage:
+//
+// if (Urlencoded.detect(some_string)) {
+//     var unpacked = Urlencoded.unpack(some_string);
+// }
+//
+//
+
+var isNode = (typeof module !== 'undefined' && module.exports);
+if (isNode) {
+    var SanityTest = require("devtools/shared/jsbeautify/lib/sanitytest");
+}
+
+var Urlencoded = {
+    detect: function (str) {
+        // the fact that script doesn't contain any space, but has %20 instead
+        // should be sufficient check for now.
+        if (str.indexOf(' ') == -1) {
+            if (str.indexOf('%2') != -1) return true;
+            if (str.replace(/[^%]+/g, '').length > 3) return true;
+        }
+        return false;
+    },
+
+    unpack: function (str) {
+        if (Urlencoded.detect(str)) {
+            if (str.indexOf('%2B') != -1 || str.indexOf('%2b') != -1) {
+                // "+" escaped as "%2B"
+                return unescape(str.replace(/\+/g, '%20'));
+            } else {
+                return unescape(str);
+            }
+        }
+        return str;
+    },
+
+
+
+    run_tests: function (sanity_test) {
+        var t = sanity_test || new SanityTest();
+        t.test_function(Urlencoded.detect, "Urlencoded.detect");
+        t.expect('', false);
+        t.expect('var a = b', false);
+        t.expect('var%20a+=+b', true);
+        t.expect('var%20a=b', true);
+        t.expect('var%20%21%22', true);
+        t.expect('javascript:(function(){var%20whatever={init:function(){alert(%22a%22+%22b%22)}};whatever.init()})();', true);
+        t.test_function(Urlencoded.unpack, 'Urlencoded.unpack');
+
+        t.expect('javascript:(function(){var%20whatever={init:function(){alert(%22a%22+%22b%22)}};whatever.init()})();',
+            'javascript:(function(){var whatever={init:function(){alert("a"+"b")}};whatever.init()})();'
+        );
+        t.expect('', '');
+        t.expect('abcd', 'abcd');
+        t.expect('var a = b', 'var a = b');
+        t.expect('var%20a=b', 'var a=b');
+        t.expect('var%20a=b+1', 'var a=b+1');
+        t.expect('var%20a=b%2b1', 'var a=b+1');
+        return t;
+    }
+
+
+};
+
+if (isNode) {
+    module.exports = Urlencoded;
+}