[Dextrose] [PATCH 5/5][dextrose2][sugar] Updater check bundle integrity

[Martin Abente]

Add integrity check for each bundle, and thus avoid adding
trash bundles to journal.

Fixes #2588.

---
 extensions/cpsection/updater/model.py |   18 ++++++++++++++++++
 1 files changed, 18 insertions(+), 0 deletions(-)

diff --git a/extensions/cpsection/updater/model.py b/extensions/cpsection/updater/model.py
index 9f27924..d18f6d6 100755
--- a/extensions/cpsection/updater/model.py
+++ b/extensions/cpsection/updater/model.py
@@ -26,6 +26,7 @@ import logging
 import tempfile
 from urlparse import urlparse
 import traceback
+from zipfile import ZipFile
 
 import gobject
 import gio
@@ -378,5 +379,22 @@ class _Downloader(gobject.GObject):
 
             logging.debug('closing output stream')
             self._output_stream.close()
+            self._check_integrity()
 
+    def _check_integrity(self):
+        bundle_path = self._output_file.get_path()
+
+        try:
+            bundle_file = ZipFile(bundle_path, 'r')
+        except:
+            passed = False
+        else:
+            passed = (bundle_file.testzip() is None)
+            bundle_file.close()
+
+        if passed:
             self.emit('finish', True)
+        else:
+            logging.error('updater: %s bundle file is corrupt' % bundle_path)
+            self.emit('finish', False)
+
-- 
1.7.4.4