[bug] fixes for display attachments and move between folders

- Add errback handling to catch properly errors that were not allowing
  the complete insertion of the parts for a given message. Fixes blank
  attachments and moving of messages to different folders.
- Force overwritting of mdoc when it is a copy. This was avoiding a
  message to be copied back to a folder from where it already had been
  copied to another (since the mdoc was already existing there, with the
  same doc_id, which was forbidding the creation of the new one).
  This case also needs special care in the indexer, since we have to
  delete the old hash entry first.

Closes: #7178, #7158

5 files changed, 86 insertions, 19 deletions

diff --git a/mail/src/leap/mail/adaptors/soledad.py b/mail/src/leap/mail/adaptors/soledad.py
index b8e5fd4..dc0960f 100644
--- a/mail/src/leap/mail/adaptors/soledad.py
+++ b/mail/src/leap/mail/adaptors/soledad.py
@@ -24,6 +24,7 @@ from email import message_from_string
 
 from pycryptopp.hash import sha256
 from twisted.internet import defer
+from twisted.python import log
 from zope.interface import implements
 import u1db
 
@@ -108,7 +109,7 @@ class SoledadDocumentWrapper(models.DocumentWrapper):
     def set_future_doc_id(self, doc_id):
         self._future_doc_id = doc_id
 
-    def create(self, store):
+    def create(self, store, is_copy=False):
         """
         Create the documents for this wrapper.
         Since this method will not check for duplication, the
@@ -130,13 +131,28 @@ class SoledadDocumentWrapper(models.DocumentWrapper):
             self.set_future_doc_id(None)
             return doc
 
+        def update_wrapper(failure):
+            # In the case of some copies (for instance, from one folder to
+            # another and back to the original folder), the document that we
+            # want to insert already exists. In this  case, putting it
+            # and overwriting the document with that doc_id is the right thing
+            # to do.
+            failure.trap(u1db.errors.RevisionConflict)
+            self._doc_id = self.future_doc_id
+            self._future_doc_id = None
+            return self.update(store)
+
         if self.future_doc_id is None:
             d = store.create_doc(self.serialize())
         else:
             d = store.create_doc(self.serialize(),
                                  doc_id=self.future_doc_id)
         d.addCallback(update_doc_id)
-        d.addErrback(self._catch_revision_conflict, self.future_doc_id)
+
+        if is_copy:
+            d.addErrback(update_wrapper),
+        else:
+            d.addErrback(self._catch_revision_conflict, self.future_doc_id)
         return d
 
     def update(self, store):
@@ -542,8 +558,8 @@ class MessageWrapper(object):
         # TODO check that the doc_ids in the mdoc are coherent
         self.d = []
 
-        mdoc_created = self.mdoc.create(store)
-        fdoc_created = self.fdoc.create(store)
+        mdoc_created = self.mdoc.create(store, is_copy=self._is_copy)
+        fdoc_created = self.fdoc.create(store, is_copy=self._is_copy)
 
         self.d.append(mdoc_created)
         self.d.append(fdoc_created)
@@ -558,7 +574,12 @@ class MessageWrapper(object):
                     continue
                 self.d.append(cdoc.create(store))
 
-        self.all_inserted_d = defer.gatherResults(self.d)
+        def log_all_inserted(result):
+            log.msg("All parts inserted for msg!")
+            return result
+
+        self.all_inserted_d = defer.gatherResults(self.d, consumeErrors=True)
+        self.all_inserted_d.addCallback(log_all_inserted)
 
         if notify_just_mdoc:
             self.all_inserted_d.addCallback(unblock_pending_insert)
@@ -605,8 +626,10 @@ class MessageWrapper(object):
         new_wrapper.set_mbox_uuid(new_mbox_uuid)
 
         # XXX could flag so that it only creates mdoc/fdoc...
+
         d = new_wrapper.create(store)
         d.addCallback(lambda result: new_wrapper)
+        d.addErrback(lambda failure: log.err(failure))
         return d
 
     def set_mbox_uuid(self, mbox_uuid):
@@ -942,10 +965,14 @@ class SoledadMailAdaptor(SoledadIndexMixin):
         fdoc_id = _get_fdoc_id_from_mdoc_id()
 
         def wrap_fdoc(doc):
+            if not doc:
+                return
             cls = FlagsDocWrapper
             return cls(doc_id=doc.doc_id, **doc.content)
 
         def get_flags(fdoc_wrapper):
+            if not fdoc_wrapper:
+                return []
             return fdoc_wrapper.get_flags()
 
         d = store.get_doc(fdoc_id)
@@ -983,8 +1010,8 @@ class SoledadMailAdaptor(SoledadIndexMixin):
         """
         Delete all messages flagged as deleted.
         """
-        def err(f):
-            f.printTraceback()
+        def err(failure):
+            log.err(failure)
 
         def delete_fdoc_and_mdoc_flagged(fdocs):
             # low level here, not using the wrappers...
@@ -1118,8 +1145,8 @@ class SoledadMailAdaptor(SoledadIndexMixin):
         """
         return MailboxWrapper.get_all(store)
 
-    def _errback(self, f):
-        f.printTraceback()
+    def _errback(self, failure):
+        log.err(failure)
 
 
 def _split_into_parts(raw):
diff --git a/mail/src/leap/mail/imap/mailbox.py b/mail/src/leap/mail/imap/mailbox.py
index 1412344..c4821ff 100644
--- a/mail/src/leap/mail/imap/mailbox.py
+++ b/mail/src/leap/mail/imap/mailbox.py
@@ -846,8 +846,9 @@ class IMAPMailbox(object):
         #deferLater(self.reactor, 0, self._do_copy, message, d)
         #return d
 
-        return self.collection.copy_msg(message.message,
-                                        self.collection.mbox_uuid)
+        d = self.collection.copy_msg(message.message,
+                                     self.collection.mbox_uuid)
+        return d
 
     # convenience fun
 
diff --git a/mail/src/leap/mail/mail.py b/mail/src/leap/mail/mail.py
index 8cb0b4a..bf5b34d 100644
--- a/mail/src/leap/mail/mail.py
+++ b/mail/src/leap/mail/mail.py
@@ -25,6 +25,7 @@ import time
 import weakref
 
 from twisted.internet import defer
+from twisted.python import log
 
 from leap.common.check import leap_assert_type
 from leap.common.events import emit, catalog
@@ -559,7 +560,7 @@ class MessageCollection(object):
         """
         Add a message to this collection.
 
-        :param raw_message: the raw message
+        :param raw_msg: the raw message
         :param flags: tuple of flags for this message
         :param tags: tuple of tags for this message
         :param date:
@@ -619,7 +620,7 @@ class MessageCollection(object):
             # so workaround is to make sure we always check for it before
             # inserting the doc. I should debug into the real cause.
             d = self.mbox_indexer.create_table(self.mbox_uuid)
-            d.addCallback(lambda _: self.mbox_indexer.insert_doc(
+            d.addBoth(lambda _: self.mbox_indexer.insert_doc(
                 self.mbox_uuid, doc_id))
             return d
 
@@ -664,12 +665,52 @@ class MessageCollection(object):
         Copy the message to another collection. (it only makes sense for
         mailbox collections)
         """
+        # TODO should CHECK first if the mdoc is present in the mailbox
+        # WITH a Deleted flag... and just simply remove the flag...
+        # Another option is to delete the previous mdoc if it already exists
+        # (so we get a new UID)
+
         if not self.is_mailbox_collection():
             raise NotImplementedError()
 
+        def delete_mdoc_entry_and_insert(failure, mbox_uuid, doc_id):
+            d = self.mbox_indexer.delete_doc_by_hash(mbox_uuid, doc_id)
+            d.addCallback(lambda _: self.mbox_indexer.insert_doc(
+                new_mbox_uuid, doc_id))
+            return d
+
         def insert_copied_mdoc_id(wrapper_new_msg):
-            return self.mbox_indexer.insert_doc(
-                new_mbox_uuid, wrapper_new_msg.mdoc.doc_id)
+            # XXX FIXME -- since this is already saved, the future_doc_id
+            # should be already copied into the doc_id!
+            # Investigate why we are not receiving the already saved doc_id
+            doc_id = wrapper_new_msg.mdoc.doc_id
+            if not doc_id:
+                doc_id = wrapper_new_msg.mdoc._future_doc_id
+
+            def insert_conditionally(uid, mbox_uuid, doc_id):
+                indexer = self.mbox_indexer
+                if uid:
+                    d = indexer.delete_doc_by_hash(mbox_uuid, doc_id)
+                    d.addCallback(lambda _: indexer.insert_doc(
+                        new_mbox_uuid, doc_id))
+                    return d
+                else:
+                    d = indexer.insert_doc(mbox_uuid, doc_id)
+                    return d
+
+            def log_result(result):
+                return result
+
+            def insert_doc(_, mbox_uuid, doc_id):
+                d = self.mbox_indexer.get_uid_from_doc_id(mbox_uuid, doc_id)
+                d.addCallback(insert_conditionally, mbox_uuid, doc_id)
+                d.addErrback(lambda err: log.failure(err))
+                d.addCallback(log_result)
+                return d
+
+            d = self.mbox_indexer.create_table(new_mbox_uuid)
+            d.addBoth(insert_doc, new_mbox_uuid, doc_id)
+            return d
 
         wrapper = msg.get_wrapper()
 
diff --git a/mail/src/leap/mail/mailbox_indexer.py b/mail/src/leap/mail/mailbox_indexer.py
index ab0967d..08e5f10 100644
--- a/mail/src/leap/mail/mailbox_indexer.py
+++ b/mail/src/leap/mail/mailbox_indexer.py
@@ -104,7 +104,6 @@ class MailboxIndexer(object):
                "uid  INTEGER PRIMARY KEY AUTOINCREMENT, "
                "hash TEXT UNIQUE NOT NULL)".format(
                    preffix=self.table_preffix, name=sanitize(mailbox_uuid)))
-        print "CREATING TABLE..."
         return self._operation(sql)
 
     def delete_table(self, mailbox_uuid):
@@ -190,8 +189,7 @@ class MailboxIndexer(object):
         :type mailbox: str
         :param doc_id: the doc_id for the MetaMsg
         :type doc_id: str
-        :return: a deferred that will fire with the uid of the newly inserted
-                 document.
+        :return: a deferred that will fire when the deletion has succed.
         :rtype: Deferred
         """
         check_good_uuid(mailbox_uuid)
diff --git a/mail/src/leap/mail/sync_hooks.py b/mail/src/leap/mail/sync_hooks.py
index a8a69c9..bd8d88d 100644
--- a/mail/src/leap/mail/sync_hooks.py
+++ b/mail/src/leap/mail/sync_hooks.py
@@ -86,7 +86,7 @@ class MailProcessingPostSyncHook(object):
             # have seen -- but make sure *it's already created* before
             # inserting the index entry!.
             d = indexer.create_table(mbox_uuid)
-            d.addCallback(lambda _: indexer.insert_doc(mbox_uuid, index_docid))
+            d.addBoth(lambda _: indexer.insert_doc(mbox_uuid, index_docid))
             self._processing_deferreds.append(d)
 
     def _process_queued_docs(self):