[pkg] unify client and server into a single python package

We have been discussing about this merge for a while.
Its main goal is to simplify things: code navigation, but also
packaging.

The rationale is that the code is more cohesive in this way, and there's
only one source package to install.

Dependencies that are only for the server or the client will not be
installed by default, and they are expected to be provided by the
environment. There are setuptools extras defined for the client and the
server.

Debianization is still expected to split the single source package into
3 binaries.

Another avantage is that the documentation can now install a single
package with a single step, and therefore include the docstrings into
the generated docs.

- Resolves: #8896

1 files changed, 94 insertions, 0 deletions

diff --git a/src/leap/soledad/client/http_target/__init__.py b/src/leap/soledad/client/http_target/__init__.py
new file mode 100644
index 00000000..b67d03f6
--- /dev/null
+++ b/src/leap/soledad/client/http_target/__init__.py
@@ -0,0 +1,94 @@
+# -*- coding: utf-8 -*-
+# __init__.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/>.
+
+
+"""
+A U1DB backend for encrypting data before sending to server and decrypting
+after receiving.
+"""
+
+
+import os
+
+from twisted.web.client import Agent
+from twisted.internet import reactor
+
+from leap.common.certs import get_compatible_ssl_context_factory
+from leap.soledad.common.log import getLogger
+from leap.soledad.client.http_target.send import HTTPDocSender
+from leap.soledad.client.http_target.api import SyncTargetAPI
+from leap.soledad.client.http_target.fetch import HTTPDocFetcher
+from leap.soledad.client import crypto as old_crypto
+
+
+logger = getLogger(__name__)
+
+
+# we may want to collect statistics from the sync process
+DO_STATS = False
+if os.environ.get('SOLEDAD_STATS'):
+    DO_STATS = True
+
+
+class SoledadHTTPSyncTarget(SyncTargetAPI, HTTPDocSender, HTTPDocFetcher):
+
+    """
+    A SyncTarget that encrypts data before sending and decrypts data after
+    receiving.
+
+    Normally encryption will have been written to the sync database upon
+    document modification. The sync database is also used to write temporarily
+    the parsed documents that the remote send us, before being decrypted and
+    written to the main database.
+    """
+    def __init__(self, url, source_replica_uid, creds, crypto, cert_file):
+        """
+        Initialize the sync target.
+
+        :param url: The server sync url.
+        :type url: str
+        :param source_replica_uid: The source replica uid which we use when
+                                   deferring decryption.
+        :type source_replica_uid: str
+        :param creds: A dictionary containing the uuid and token.
+        :type creds: creds
+        :param crypto: An instance of SoledadCrypto so we can encrypt/decrypt
+                        document contents when syncing.
+        :type crypto: soledad._crypto.SoledadCrypto
+        :param cert_file: Path to the certificate of the ca used to validate
+                          the SSL certificate used by the remote soledad
+                          server.
+        :type cert_file: str
+        """
+        if url.endswith("/"):
+            url = url[:-1]
+        self._url = str(url) + "/sync-from/" + str(source_replica_uid)
+        self.source_replica_uid = source_replica_uid
+        self._auth_header = None
+        self._uuid = None
+        self.set_creds(creds)
+        self._crypto = crypto
+        # TODO: DEPRECATED CRYPTO
+        self._deprecated_crypto = old_crypto.SoledadCrypto(crypto.secret)
+        self._insert_doc_cb = None
+
+        # Twisted default Agent with our own ssl context factory
+        factory = get_compatible_ssl_context_factory(cert_file)
+        self._http = Agent(reactor, factory)
+
+        if DO_STATS:
+            self.sync_exchange_phase = [0]