Adding mozilla libraries required by Firefox interop test.

third_party/mozdownload/mozdownload/parser.py

+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+"""Module to parse directory listings on a remote FTP server."""
+
+from HTMLParser import HTMLParser
+import re
+import urllib
+
+
+class DirectoryParser(HTMLParser):
+    """Class to parse directory listings"""
+
+    def __init__(self, url):
+        HTMLParser.__init__(self)
+
+        self.entries = [ ]
+        self.active_url = None
+
+        req = urllib.urlopen(url)
+        self.feed(req.read())
+
+    def filter(self, regex):
+        pattern = re.compile(regex, re.IGNORECASE)
+        return [entry for entry in self.entries if pattern.match(entry)]
+
+    def handle_starttag(self, tag, attrs):
+        if not tag == 'a':
+            return
+
+        for attr in attrs:
+            if attr[0] == 'href':
+                self.active_url = attr[1].strip('/')
+                return
+
+    def handle_endtag(self, tag):
+        if tag == 'a':
+            self.active_url = None
+
+    def handle_data(self, data):
+        # Only process the data when we are in an active a tag and have an URL
+        if not self.active_url:
+            return
+
+        name = urllib.quote(data.strip('/'))
+        if self.active_url == name:
+            self.entries.append(self.active_url)