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authordrebs <drebs@leap.se>2014-03-10 12:20:52 -0300
committerdrebs <drebs@leap.se>2014-03-11 09:41:34 -0300
commit981eca6e00555e00c2f04621d6caad328ccc0363 (patch)
tree50067b7eafdc8ab8331e8cdadfcf8802fbb3d7cf /common/src/leap/soledad
parent7de7b4653b1815818611d2a6302bd38d1e7a7ccc (diff)
Make resolve_doc() not use a design document.
Diffstat (limited to 'common/src/leap/soledad')
-rw-r--r--common/src/leap/soledad/common/couch.py54
-rw-r--r--common/src/leap/soledad/common/ddocs/docs/updates/resolve_doc.js39
-rw-r--r--common/src/leap/soledad/common/tests/test_couch.py16
3 files changed, 29 insertions, 80 deletions
diff --git a/common/src/leap/soledad/common/couch.py b/common/src/leap/soledad/common/couch.py
index 09fe1ca3..456d4fdf 100644
--- a/common/src/leap/soledad/common/couch.py
+++ b/common/src/leap/soledad/common/couch.py
@@ -123,6 +123,16 @@ class CouchDocument(SoledadDocument):
"""
return self._conflicts
+ def set_conflicts(self, conflicts):
+ """
+ Set the conflicted versions of the document.
+
+ :param conflicts: The conflicted versions of the document.
+ :type conflicts: list
+ """
+ self._conflicts = conflicts
+ self.has_conflicts = len(self._conflicts) > 0
+
def add_conflict(self, doc):
"""
Add a conflict to this document.
@@ -658,8 +668,11 @@ class CouchDatabase(CommonBackend):
and '_attachments' in result \
and 'u1db_conflicts' in result['_attachments']:
doc.has_conflicts = True
- #doc.conflicts = self._build_conflicts(
- # json.loads(result['_attachments']['u1db_conflicts']))
+ doc.set_conflicts(
+ self._build_conflicts(
+ doc.doc_id,
+ json.loads(binascii.a2b_base64(
+ result['_attachments']['u1db_conflicts']['data']))))
# store couch revision
doc.couch_rev = result['_rev']
# store transactions
@@ -1196,33 +1209,24 @@ class CouchDatabase(CommonBackend):
conflicted_doc_revs)
superseded_revs = set(conflicted_doc_revs)
doc.rev = new_rev
+ # this backend stores conflicts as properties of the documents, so we
+ # have to copy these conflicts over to the document being updated.
if cur_doc.rev in superseded_revs:
+ # the newer doc version will supersede the one in the database, so
+ # we copy conflicts before updating the backend.
+ doc.set_conflicts(cur_doc.get_conflicts()) # copy conflicts over.
self._delete_conflicts(doc, superseded_revs)
self._put_doc(cur_doc, doc)
else:
- self._add_conflict(doc, new_rev, doc.get_json())
- self._delete_conflicts(doc, superseded_revs)
- # perform request to resolve document in server
- ddoc_path = [
- '_design', 'docs', '_update', 'resolve_doc', doc.doc_id
- ]
- resource = self._database.resource(*ddoc_path)
- conflicts = None
- if doc.has_conflicts:
- conflicts = binascii.b2a_base64(
- json.dumps(
- map(lambda cdoc: (cdoc.rev, cdoc.content),
- doc.get_conflicts()))
- )[:-1] # exclude \n
- try:
- response = resource.put_json(
- body={
- 'couch_rev': cur_doc.couch_rev,
- 'conflicts': conflicts,
- },
- headers={'content-type': 'application/json'})
- except ResourceNotFound as e:
- raise_missing_design_doc_error(e, ddoc_path)
+ # the newer doc version does not supersede the one in the
+ # database, so we will add a conflict to the database and copy
+ # those over to the document the user has in her hands.
+ self._add_conflict(cur_doc, new_rev, doc.get_json())
+ self._delete_conflicts(cur_doc, superseded_revs)
+ self._put_doc(cur_doc, cur_doc) # just update conflicts
+ # backend has been updated with current conflicts, now copy them
+ # to the current document.
+ doc.set_conflicts(cur_doc.get_conflicts())
def _put_doc_if_newer(self, doc, save_conflict, replica_uid, replica_gen,
replica_trans_id=''):
diff --git a/common/src/leap/soledad/common/ddocs/docs/updates/resolve_doc.js b/common/src/leap/soledad/common/ddocs/docs/updates/resolve_doc.js
deleted file mode 100644
index 7ba66cf8..00000000
--- a/common/src/leap/soledad/common/ddocs/docs/updates/resolve_doc.js
+++ /dev/null
@@ -1,39 +0,0 @@
-function(doc, req){
- /* we expect to receive the following in `req.body`:
- * {
- * 'couch_rev': '<couch_rev>',
- * 'conflicts': '<base64 encoded conflicts>',
- * }
- */
- var body = JSON.parse(req.body);
-
- // fail if no document was given
- if (!doc) {
- return [null, 'document does not exist']
- }
-
- // fail if couch revisions do not match
- if (body['couch_rev'] != null
- && doc['_rev'] != body['couch_rev']) {
- return [null, 'revision conflict']
- }
-
- // fail if conflicts were not sent
- if (body['conflicts'] == null)
- return [null, 'missing conflicts']
-
- // save conflicts as attachment if they were sent
- if (body['conflicts'] != null) {
- if (!doc._attachments)
- doc._attachments = {};
- doc._attachments.u1db_conflicts = {
- content_type: "application/octet-stream",
- data: body['conflicts'] // should be base64 encoded
- }
- }
- // or delete attachment if there are no conflicts
- else if (doc._attachments && doc._attachments.u1db_conflicts)
- delete doc._attachments.u1db_conflicts;
-
- return [doc, 'ok'];
-}
diff --git a/common/src/leap/soledad/common/tests/test_couch.py b/common/src/leap/soledad/common/tests/test_couch.py
index 97d744e4..86bb4b93 100644
--- a/common/src/leap/soledad/common/tests/test_couch.py
+++ b/common/src/leap/soledad/common/tests/test_couch.py
@@ -503,14 +503,6 @@ class CouchDatabaseExceptionsTests(CouchDBTestCase):
self.assertRaises(
errors.MissingDesignDocError,
self.db._do_set_replica_gen_and_trans_id, 1, 2, 3)
- # fake a conflict so we can test resolve_doc()
- first_rev = self.db._allocate_doc_rev(None)
- doc = couch.CouchDocument(
- doc_id='mydoc', rev=self.db._allocate_doc_rev(first_rev))
- self.db._get_doc = Mock(return_value=doc)
- self.assertRaises(
- errors.MissingDesignDocError,
- self.db.resolve_doc, doc, [first_rev])
def test_missing_design_doc_functions_raises(self):
"""
@@ -649,14 +641,6 @@ class CouchDatabaseExceptionsTests(CouchDBTestCase):
self.assertRaises(
errors.MissingDesignDocDeletedError,
self.db._do_set_replica_gen_and_trans_id, 1, 2, 3)
- # fake a conflict so we can test resolve_doc()
- first_rev = self.db._allocate_doc_rev(None)
- doc = couch.CouchDocument(
- doc_id='mydoc', rev=self.db._allocate_doc_rev(first_rev))
- self.db._get_doc = Mock(return_value=doc)
- self.assertRaises(
- errors.MissingDesignDocDeletedError,
- self.db.resolve_doc, doc, [first_rev])
load_tests = tests.load_with_scenarios