[pgp] Move all Gajim PGP code into plugin

pgp/backend/store.py

@@ -0,0 +1,105 @@
+# Copyright (C) 2019 Philipp Hörist <philipp AT hoerist.com>
+#
+# This file is part of the PGP Gajim Plugin.
+#
+# PGP Gajim Plugin 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; version 3 only.
+#
+# PGP Gajim Plugin 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 PGP Gajim Plugin. If not, see <http://www.gnu.org/licenses/>.
+
+import json
+from pathlib import Path
+
+from gajim.common import app
+from gajim.common import configpaths
+from gajim.common.helpers import delay_execution
+
+
+class KeyStore:
+    def __init__(self, account, own_jid, log):
+        self._log = log
+        self._account = account
+        self._store = {
+            'own_key_data': None,
+            'contact_key_data': {},
+        }
+
+        own_bare_jid = own_jid.getBare()
+        path = Path(configpaths.get('PLUGINS_DATA')) / 'pgplegacy' / own_bare_jid
+        if not path.exists():
+            path.mkdir(parents=True)
+
+        self._store_path = path / 'store'
+        if self._store_path.exists():
+            with self._store_path.open('r') as file:
+                try:
+                    self._store = json.load(file)
+                except Exception:
+                    log.exception('Could not load config')
+
+        if not self._store['contact_key_data']:
+            self._migrate()
+
+    def _migrate(self):
+        keys = {}
+        attached_keys = app.config.get_per(
+            'accounts', self._account, 'attached_gpg_keys').split()
+        if attached_keys is None:
+            return
+
+        for i in range(len(attached_keys) // 2):
+            keys[attached_keys[2 * i]] = attached_keys[2 * i + 1]
+
+        for jid, key_id in keys.items():
+            self.set_contact_key_data(jid, (key_id, ''))
+
+        own_key_id = app.config.get_per('accounts', self._account, 'keyid')
+        own_key_user = app.config.get_per('accounts', self._account, 'keyname')
+        if own_key_id:
+            self.set_own_key_data((own_key_id, own_key_user))
+        self._log.info('Migration successful')
+
+    @delay_execution(500)
+    def _save_store(self):
+        with self._store_path.open('w') as file:
+            json.dump(self._store, file)
+
+    def _get_dict_key(self, jid):
+        return '%s-%s' % (self._account, jid)
+
+    def set_own_key_data(self, key_data):
+        if key_data is None:
+            self._store['own_key_data'] = None
+        else:
+            self._store['own_key_data'] = {
+                'key_id': key_data[0],
+                'key_user': key_data[1]
+            }
+        self._save_store()
+
+    def get_own_key_data(self):
+        return self._store['own_key_data']
+
+    def get_contact_key_data(self, jid):
+        key_ids = self._store['contact_key_data']
+        dict_key = self._get_dict_key(jid)
+        return key_ids.get(dict_key)
+
+    def set_contact_key_data(self, jid, key_data):
+        key_ids = self._store['contact_key_data']
+        dict_key = self._get_dict_key(jid)
+        if key_data is None:
+            self._store['contact_key_data'][dict_key] = None
+        else:
+            key_ids[dict_key] = {
+                'key_id': key_data[0],
+                'key_user': key_data[1]
+            }
+        self._save_store()