added signatures subcommand

tests/signatures.TestCase

@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+
+import inspect
+import optparse
+import os
+import sys
+import unittest
+import hashlib
+import logging
+from tempfile import TemporaryDirectory
+
+localmodule = os.path.realpath(
+    os.path.join(os.path.dirname(inspect.getfile(inspect.currentframe())), '..'))
+print('localmodule: ' + localmodule)
+if localmodule not in sys.path:
+    sys.path.insert(0, localmodule)
+
+from testcommon import TmpCwd
+from fdroidserver import common, signatures
+
+
+class SignaturesTest(unittest.TestCase):
+
+    def setUp(self):
+        logging.basicConfig(level=logging.DEBUG)
+        common.config = None
+        config = common.read_config(common.options)
+        config['jarsigner'] = common.find_sdk_tools_cmd('jarsigner')
+        config['verbose'] = True
+        common.config = config
+
+    def test_main(self):
+
+        # option fixture class:
+        class OptionsFixture:
+            APK = [os.path.abspath(os.path.join('repo', 'com.politedroid_3.apk'))]
+
+        with TemporaryDirectory() as tmpdir, TmpCwd(tmpdir):
+            signatures.extract(common.config, OptionsFixture())
+
+            # check if extracted signatures are where they are supposed to be
+            # also verify weather if extracted file contian what they should
+            filesAndHashes = (
+                (os.path.join('metadata', 'com.politedroid', 'signatures', '3', 'MANIFEST.MF'),
+                 '7dcd83f0c41a75457fd2311bf3c4578f80d684362d74ba8dc52838d353f31cf2'),
+                (os.path.join('metadata', 'com.politedroid', 'signatures', '3', 'RELEASE.RSA'),
+                 '883ef3d5a6e0bf69d2a58d9e255a7930f08a49abc38e216ed054943c99c8fdb4'),
+                (os.path.join('metadata', 'com.politedroid', 'signatures', '3', 'RELEASE.SF'),
+                 '99fbb3211ef5d7c1253f3a7ad4836eadc9905103ce6a75916c40de2831958284'),
+            )
+            for path, checksum in filesAndHashes:
+                self.assertTrue(os.path.isfile(path))
+                with open(path, 'rb') as f:
+                    self.assertEqual(hashlib.sha256(f.read()).hexdigest(), checksum)
+
+
+if __name__ == "__main__":
+    parser = optparse.OptionParser()
+    parser.add_option("-v", "--verbose", action="store_true", default=False,
+                      help="Spew out even more information than normal")
+    (common.options, args) = parser.parse_args(['--verbose'])
+
+    newSuite = unittest.TestSuite()
+    newSuite.addTest(unittest.makeSuite(SignaturesTest))
+    unittest.main()

tests/testcommon.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2017, Michael Poehn <michael.poehn@fsfe.org>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+
+
+class TmpCwd():
+    """Context-manager for temporarily changing the current working
+    directory.
+    """
+
+    def __init__(self, new_cwd):
+        self.new_cwd = new_cwd
+
+    def __enter__(self):
+        self.orig_cwd = os.getcwd()
+        os.chdir(self.new_cwd)
+
+    def __exit__(self, a, b, c):
+        os.chdir(self.orig_cwd)