From 578d986b8eb502cde027c0cd1e05742a59def496 Mon Sep 17 00:00:00 2001
From: drebs <drebs@leap.se>
Date: Tue, 24 Mar 2015 13:46:45 -0300
Subject: [fix] turn client side db access script into async

With changes in soledad client api to make it async, the supporting scripts
also have to be updated. This commit also adds more functionalities as
exporting incoming mail and public or private keys.
---
 scripts/db_access/client_side_db.py | 56 +++++++++++++++++++++++++++++++++----
 scripts/db_access/util.py           |  1 +
 2 files changed, 51 insertions(+), 6 deletions(-)
 create mode 120000 scripts/db_access/util.py

diff --git a/scripts/db_access/client_side_db.py b/scripts/db_access/client_side_db.py
index 2b1b7c72..a77b0b16 100644
--- a/scripts/db_access/client_side_db.py
+++ b/scripts/db_access/client_side_db.py
@@ -11,8 +11,12 @@ import srp._pysrp as srp
 import binascii
 import logging
 
+from twisted.internet import reactor
+from twisted.internet.defer import inlineCallbacks
+
 from leap.soledad.client import Soledad
 from leap.keymanager import KeyManager
+from leap.keymanager.openpgp import OpenPGPKey
 
 from util import ValidateUserHandle
 
@@ -137,11 +141,21 @@ def _parse_args():
     parser.add_argument(
         'user@provider', action=ValidateUserHandle, help='the user handle')
     parser.add_argument(
-        '-b', dest='basedir', required=False, default=None,
+        '--basedir', '-b', default=None,
         help='soledad base directory')
     parser.add_argument(
-        '-p', dest='passphrase', required=False, default=None,
+        '--passphrase', '-p', default=None,
         help='the user passphrase')
+    parser.add_argument(
+        '--sync', '-s', action='store_true',
+        help='synchronize with the server replica')
+    parser.add_argument(
+        '--export-public-key', help="export the public key to a file")
+    parser.add_argument(
+        '--export-private-key', help="export the private key to a file")
+    parser.add_argument(
+        '--export-incoming-messages',
+        help="export incoming messages to a directory")
     return parser.parse_args()
 
 
@@ -161,23 +175,53 @@ def _get_basedir(args):
     return basedir
 
 
+@inlineCallbacks
+def _export_key(args, km, fname, private=False):
+    address = args.username + "@" + args.provider
+    pkey = yield km.get_key(address, OpenPGPKey, private=private, fetch_remote=False)
+    with open(args.export_private_key, "w") as f:
+        f.write(pkey.key_data)
+
+
+@inlineCallbacks
+def _export_incoming_messages(soledad, directory):
+    yield soledad.create_index("by-incoming", "bool(incoming)")
+    docs = yield soledad.get_from_index("by-incoming", '1')
+    i = 1
+    for doc in docs:
+        with open(os.path.join(directory, "message_%d.gpg" % i), "w") as f:
+            f.write(doc.content["_enc_json"])
+        i += 1
+
+
 # main program
 
+@inlineCallbacks
+def _main(soledad, km, args):
+    if args.sync:
+        yield soledad.sync()
+    if args.export_private_key:
+        yield _export_key(args, km, args.export_private_key, private=True)
+    if args.export_public_key:
+        yield _export_key(args, km, args.expoert_public_key, private=False)
+    if args.export_incoming_messages:
+        yield _export_incoming_messages(soledad, args.export_incoming_messages)
+    reactor.stop()
+
+
 if __name__ == '__main__':
     args = _parse_args()
     passphrase = _get_passphrase(args)
     basedir = _get_basedir(args)
     uuid, server_url, cert_file, token = \
         _get_soledad_info(args.username, args.provider, passphrase, basedir)
-
     soledad = _get_soledad_instance(
         uuid, passphrase, basedir, server_url, cert_file, token)
-    soledad.sync()
-
     km = _get_keymanager_instance(
         args.username,
         args.provider,
         soledad,
         token,
         uid=uuid)
-
+    _main(soledad, km, args)
+    reactor.run()
diff --git a/scripts/db_access/util.py b/scripts/db_access/util.py
new file mode 120000
index 00000000..368734f7
--- /dev/null
+++ b/scripts/db_access/util.py
@@ -0,0 +1 @@
+../profiling/util.py
\ No newline at end of file
-- 
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