add repair mailbox utility

1 files changed, 234 insertions, 0 deletions

diff --git a/src/leap/bitmask/services/mail/repair.py b/src/leap/bitmask/services/mail/repair.py
new file mode 100644
index 00000000..767df1ef
--- /dev/null
+++ b/src/leap/bitmask/services/mail/repair.py
@@ -0,0 +1,234 @@
+# -*- coding: utf-8 -*-
+# repair.py
+# Copyright (C) 2013 LEAP
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+"""
+Utils for repairing mailbox indexes.
+"""
+import logging
+import getpass
+import os
+
+from collections import defaultdict
+
+from leap.bitmask.config.providerconfig import ProviderConfig
+from leap.bitmask.crypto.srpauth import SRPAuth
+from leap.bitmask.util import get_path_prefix
+from leap.bitmask.services.soledad.soledadbootstrapper import get_db_paths
+
+from leap.mail.imap.server import SoledadBackedAccount
+from leap.soledad.client import Soledad
+
+logger = logging.getLogger(__name__)
+logger.setLevel(logging.DEBUG)
+
+
+def initialize_soledad(uuid, email, passwd,
+                       secrets, localdb,
+                       gnupg_home, tempdir):
+    """
+    Initializes soledad by hand
+
+    :param email: ID for the user
+    :param gnupg_home: path to home used by gnupg
+    :param tempdir: path to temporal dir
+    :rtype: Soledad instance
+    """
+    # XXX TODO unify with an authoritative source of mocks
+    # for soledad (or partial initializations).
+    # This is copied from the imap tests.
+
+    server_url = "http://provider"
+    cert_file = ""
+
+    class Mock(object):
+        def __init__(self, return_value=None):
+            self._return = return_value
+
+        def __call__(self, *args, **kwargs):
+            return self._return
+
+    class MockSharedDB(object):
+
+        get_doc = Mock()
+        put_doc = Mock()
+        lock = Mock(return_value=('atoken', 300))
+        unlock = Mock(return_value=True)
+
+        def __call__(self):
+            return self
+
+    Soledad._shared_db = MockSharedDB()
+    soledad = Soledad(
+        uuid,
+        passwd,
+        secrets,
+        localdb,
+        server_url,
+        cert_file)
+
+    return soledad
+
+
+class MBOXPlumber(object):
+    """
+    An class that can fix things inside a soledadbacked account.
+    The idea is to gather in this helper different fixes for mailboxes
+    that can be invoked when data migration in the client is needed.
+    """
+
+    def __init__(self, userid, passwd):
+        """
+        Initializes the plumber with all that's needed to authenticate
+        against the provider.
+
+        :param userid: user identifier, foo@bar
+        :type userid: basestring
+        :param passwd: the soledad passphrase
+        :type passwd: basestring
+        """
+        self.userid = userid
+        self.passwd = passwd
+        user, provider = userid.split('@')
+        self.user = user
+        self.sol = None
+        provider_config_path = os.path.join(
+            get_path_prefix(),
+            "leap", "providers",
+            provider, "provider.json")
+        provider_config = ProviderConfig()
+        loaded = provider_config.load(provider_config_path)
+        if not loaded:
+            print "could not load provider config!"
+            return self.exit()
+
+        self.srp = SRPAuth(provider_config)
+        self.srp.authentication_finished.connect(self.repair_account)
+
+    def start_auth(self):
+        """
+        returns the user identifier for a given provider.
+
+        :param provider: the provider to which we authenticate against.
+        """
+        print "Authenticating with provider..."
+        self.d = self.srp.authenticate(self.user, self.passwd)
+
+    def repair_account(self, *args):
+        """
+        Gets the user id for this account.
+        """
+        print "Got authenticated."
+        self.uid = self.srp.get_uid()
+        if not self.uid:
+            print "Got BAD UID from provider!"
+            return self.exit()
+        print "UID: %s" % (self.uid)
+
+        secrets, localdb = get_db_paths(self.uid)
+
+        self.sol = initialize_soledad(
+            self.uid, self.userid, self.passwd,
+            secrets, localdb, "/tmp", "/tmp")
+
+        self.acct = SoledadBackedAccount(self.userid, self.sol)
+        for mbox_name in self.acct.mailboxes:
+            self.repair_mbox(mbox_name)
+        print "done."
+        self.exit()
+
+    def repair_mbox(self, mbox_name):
+        """
+        Repairs indexes for a given mbox
+
+        :param mbox_name: mailbox to repair
+        :type mbox_name: basestring
+        """
+        print
+        print "REPAIRING INDEXES FOR MAILBOX %s" % (mbox_name,)
+        print "----------------------------------------------"
+        mbox = self.acct.getMailbox(mbox_name)
+        len_mbox = mbox.getMessageCount()
+        print "There are %s messages" % (len_mbox,)
+
+        last_ok = True if mbox.last_uid == len_mbox else False
+        uids_iter = (doc.content['uid'] for doc in mbox.messages.get_all())
+        dupes = self._has_dupes(uids_iter)
+        if last_ok and not dupes:
+            print "Mbox does not need repair."
+            return
+
+        msgs = mbox.messages.get_all()
+        for zindex, doc in enumerate(msgs):
+            mindex = zindex + 1
+            old_uid = doc.content['uid']
+            doc.content['uid'] = mindex
+            self.sol.put_doc(doc)
+            print "%s -> %s (%s)" % (mindex, doc.content['uid'], old_uid)
+
+        old_last_uid = mbox.last_uid
+        mbox.last_uid = len_mbox
+        print "LAST UID: %s (%s)" % (mbox.last_uid, old_last_uid)
+
+    def _has_dupes(self, sequence):
+        """
+        Returns True if the given sequence of ints has duplicates.
+
+        :param sequence: a sequence of ints
+        :type sequence: sequence
+        :rtype: bool
+        """
+        d = defaultdict(lambda: 0)
+        for uid in sequence:
+            d[uid] += 1
+            if d[uid] != 1:
+                return True
+        return False
+
+    def exit(self):
+        from twisted.internet import reactor
+        self.d.cancel()
+        if self.sol:
+            self.sol.close()
+        try:
+            reactor.stop()
+        except Exception:
+            pass
+        return
+
+
+def repair_account(userid):
+    """
+    Starts repair process for a given account.
+    :param userid: the user id (email-like)
+    """
+    from twisted.internet import reactor
+    passwd = unicode(getpass.getpass("Passphrase: "))
+
+    # go mario!
+    plumber = MBOXPlumber(userid, passwd)
+    reactor.callLater(1, plumber.start_auth)
+    reactor.run()
+
+
+if __name__ == "__main__":
+    import sys
+
+    logging.basicConfig()
+
+    if len(sys.argv) != 2:
+        print "Usage: repair <username>"
+        sys.exit(1)
+    repair_account(sys.argv[1])