1 files changed, 107 insertions, 0 deletions
diff --git a/src/leap/soledad/client/http_target/send.py b/src/leap/soledad/client/http_target/send.py
new file mode 100644
index 00000000..2b286ec5
--- /dev/null
+++ b/src/leap/soledad/client/http_target/send.py
@@ -0,0 +1,107 @@
+# -*- coding: utf-8 -*-
+# send.py
+# Copyright (C) 2015 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/>.
+import json
+
+from twisted.internet import defer
+
+from leap.soledad.common.log import getLogger
+from leap.soledad.client.events import emit_async
+from leap.soledad.client.events import SOLEDAD_SYNC_SEND_STATUS
+from leap.soledad.client.http_target.support import RequestBody
+from .send_protocol import DocStreamProducer
+
+logger = getLogger(__name__)
+
+
+class HTTPDocSender(object):
+    """
+    Handles Document uploading from Soledad server, using HTTP as transport.
+    They need to be encrypted and metadata prepared before sending.
+    """
+
+    # The uuid of the local replica.
+    # Any class inheriting from this one should provide a meaningful attribute
+    # if the sync status event is meant to be used somewhere else.
+
+    uuid = 'undefined'
+    userid = 'undefined'
+
+    @defer.inlineCallbacks
+    def _send_docs(self, docs_by_generation, last_known_generation,
+                   last_known_trans_id, sync_id):
+
+        if not docs_by_generation:
+            defer.returnValue([None, None])
+
+        # add remote replica metadata to the request
+        body = RequestBody(
+            last_known_generation=last_known_generation,
+            last_known_trans_id=last_known_trans_id,
+            sync_id=sync_id,
+            ensure=self._ensure_callback is not None)
+        result = yield self._send_batch(body, docs_by_generation)
+        response_dict = json.loads(result)[0]
+        gen_after_send = response_dict['new_generation']
+        trans_id_after_send = response_dict['new_transaction_id']
+        defer.returnValue([gen_after_send, trans_id_after_send])
+
+    @defer.inlineCallbacks
+    def _send_batch(self, body, docs):
+        total, calls = len(docs), []
+        for i, entry in enumerate(docs):
+            calls.append((self._prepare_one_doc,
+                         entry, body, i + 1, total))
+        result = yield self._send_request(body, calls)
+        _emit_send_status(self.uuid, body.consumed, total)
+
+        defer.returnValue(result)
+
+    def _send_request(self, body, calls):
+        return self._http_request(
+            self._url,
+            method='POST',
+            body=(body, calls),
+            content_type='application/x-soledad-sync-put',
+            body_producer=DocStreamProducer)
+
+    @defer.inlineCallbacks
+    def _prepare_one_doc(self, entry, body, idx, total):
+        get_doc_call, gen, trans_id = entry
+        doc, content = yield self._encrypt_doc(get_doc_call)
+        body.insert_info(
+            id=doc.doc_id, rev=doc.rev, content=content, gen=gen,
+            trans_id=trans_id, number_of_docs=total,
+            doc_idx=idx)
+        _emit_send_status(self.uuid, body.consumed, total)
+
+    @defer.inlineCallbacks
+    def _encrypt_doc(self, get_doc_call):
+        f, args, kwargs = get_doc_call
+        doc = yield f(*args, **kwargs)
+        if doc.is_tombstone():
+            defer.returnValue((doc, None))
+        else:
+            content = yield self._crypto.encrypt_doc(doc)
+            defer.returnValue((doc, content))
+
+
+def _emit_send_status(user_data, idx, total):
+    content = {'sent': idx, 'total': total}
+    emit_async(SOLEDAD_SYNC_SEND_STATUS, user_data, content)
+
+    msg = "%d/%d" % (idx, total)
+    logger.debug("Sync send status: %s" % msg)