Merge pull request #1140 from spesmilo/feature/newsync

New LabelSync

plugins/labels.py

@@ -1,6 +1,5 @@
 from electrum.util import print_error
 
-
 import socket
 import requests
 import threading
@@ -28,17 +27,17 @@ from electrum_gui.qt.util import ThreadedButton, Buttons, CancelButton, OkButton
 
 class Plugin(BasePlugin):
 
-    target_host = 'labelectrum.herokuapp.com'
+    target_host = 'sync.bysh.me:8080'
     encode_password = None
 
     def fullname(self):
-        return _('Label Sync')
+        return _('LabelSync')
 
     def description(self):
-        return '%s\n\n%s%s%s' % (_("This plugin can sync your labels across multiple Electrum installs by using a remote database to save your data. Labels, transactions ids and addresses are encrypted before they are sent to the remote server. This code might increase the load of your wallet with a few microseconds as it will sync labels on each startup."), _("To get started visit"), " http://labelectrum.herokuapp.com/ ", _(" to sign up for an account."))
+        return '%s\n\n%s' % (_("The new and improved LabelSync plugin. This can sync your labels across multiple Electrum installs by using a remote database to save your data. Labels, transactions ids and addresses are encrypted before they are sent to the remote server."), _("The label sync's server software is open-source as well and can be found on github.com/maran/electrum-sync-server"))
 
     def version(self):
-        return "0.2.1"
+        return "0.0.1"
 
     def encode(self, message):
         encrypted = electrum.bitcoin.aes_encrypt_with_iv(self.encode_password, self.iv, message.encode('utf8'))
@@ -49,23 +48,25 @@ class Plugin(BasePlugin):
         decoded_message = electrum.bitcoin.aes_decrypt_with_iv(self.encode_password, self.iv, base64.b64decode(message)).decode('utf8')
         return decoded_message
 
+    def set_nonce(self, nonce):
+        print_error("Set nonce to", nonce)
+        self.wallet.storage.put("wallet_nonce", nonce, True)
+        self.wallet_nonce = nonce
+
     @hook
     def init_qt(self, gui):
         self.window = gui.main_window
-        if not self.auth_token(): # First run, throw plugin settings in your face
-            self.load_wallet(self.window.wallet)
-            if self.settings_dialog():
-                self.set_enabled(True)
-                return True
-            else:
-                self.set_enabled(False)
-                return False
-
         self.window.connect(self.window, SIGNAL('labels:pulled'), self.on_pulled)
 
     @hook
     def load_wallet(self, wallet):
         self.wallet = wallet
+
+        self.wallet_nonce = self.wallet.storage.get("wallet_nonce")
+        print_error("Wallet nonce is", self.wallet_nonce)
+        if self.wallet_nonce is None:
+            self.set_nonce(1)
+
         mpk = ''.join(sorted(self.wallet.get_master_public_keys().values()))
         self.encode_password = hashlib.sha1(mpk).digest().encode('hex')[:32]
         self.iv = hashlib.sha256(self.encode_password).digest()[:16]
@@ -78,19 +79,16 @@ class Plugin(BasePlugin):
 
         self.addresses = addresses
 
-        if self.auth_token():
         # If there is an auth token we can try to actually start syncing
         def do_pull_thread():
             try:
                 self.pull_thread()
-                except:
+            except Exception as e:
-                    print_error("could not retrieve labels")
+                print_error("could not retrieve labels:", e)
         t = threading.Thread(target=do_pull_thread)
         t.setDaemon(True)
         t.start()
 
-    def auth_token(self):
-        return self.config.get("plugin_label_api_key")
 
     def is_available(self):
         return True
@@ -104,43 +102,21 @@ class Plugin(BasePlugin):
             return
         if not changed:
             return
-        bundle = {"label": {"external_id": self.encode(item), "text": self.encode(label)}}
+        bundle = {"walletId": self.wallet_id, "walletNonce": self.wallet.storage.get("wallet_nonce"), "externalId": self.encode(item), "encryptedLabel": self.encode(label)}
-        t = threading.Thread(target=self.do_request, args=["POST", False, bundle])
+        t = threading.Thread(target=self.do_request, args=["POST", "/label", False, bundle])
         t.start()
+        self.set_nonce(self.wallet.storage.get("wallet_nonce") + 1)
 
     def settings_widget(self, window):
         return EnterButton(_('Settings'), self.settings_dialog)
 
     def settings_dialog(self):
-        def check_for_api_key(api_key):
-            if api_key and len(api_key) > 12:
-              self.config.set_key("plugin_label_api_key", str(self.auth_token_edit.text()))
-              self.upload.setEnabled(True)
-              self.download.setEnabled(True)
-              self.accept.setEnabled(True)
-            else:
-              self.upload.setEnabled(False)
-              self.download.setEnabled(False)
-              self.accept.setEnabled(False)
-
         d = QDialog()
         vbox = QVBoxLayout(d)
         layout = QGridLayout()
         vbox.addLayout(layout)
 
-        layout.addWidget(QLabel("API Key: "), 0, 0)
-
-        self.auth_token_edit = QLineEdit(self.auth_token())
-        self.auth_token_edit.textChanged.connect(check_for_api_key)
-
         layout.addWidget(QLabel("Label sync options: "),2,0)
-        layout.addWidget(self.auth_token_edit, 0,1,1,2)
-
-        decrypt_key_text =  QLineEdit(self.encode_password)
-        decrypt_key_text.setReadOnly(True)
-        layout.addWidget(decrypt_key_text, 1,1)
-        layout.addWidget(QLabel("Decryption key: "),1,0)
-        layout.addWidget(HelpButton("This key can be used on the LabElectrum website to decrypt your data in case you want to review it online."),1,2)
 
         self.upload = ThreadedButton("Force upload", self.push_thread, self.done_processing)
         layout.addWidget(self.upload, 2, 1)
@@ -151,8 +127,6 @@ class Plugin(BasePlugin):
         self.accept = OkButton(d, _("Done"))
         vbox.addLayout(Buttons(CancelButton(d), self.accept))
 
-        check_for_api_key(self.auth_token())
-
         if d.exec_():
             return True
         else:
@@ -166,8 +140,8 @@ class Plugin(BasePlugin):
     def done_processing(self):
         QMessageBox.information(None, _("Labels synchronised"), _("Your labels have been synchronised."))
 
-    def do_request(self, method, is_batch=False, data=None):
+    def do_request(self, method, url = "/labels", is_batch=False, data=None):
-        url = 'https://' + self.target_host + "/api/wallets/%s/%s?auth_token=%s" % (self.wallet_id, 'labels/batch.json' if is_batch else 'labels.json', self.auth_token())
+        url = 'http://' + self.target_host + url
         kwargs = {'headers': {}}
         if method == 'GET' and data:
             kwargs['params'] = data
@@ -183,7 +157,7 @@ class Plugin(BasePlugin):
         return response
 
     def push_thread(self):
-        bundle = {"labels": {}}
+        bundle = {"labels": [], "walletId": self.wallet_id, "walletNonce": self.wallet_nonce}
         for key, value in self.wallet.labels.iteritems():
             try:
                 encoded_key = self.encode(key)
@@ -191,16 +165,23 @@ class Plugin(BasePlugin):
             except:
                 print_error('cannot encode', repr(key), repr(value))
                 continue
-            bundle["labels"][encoded_key] = encoded_value
+            bundle["labels"].append({'encryptedLabel': encoded_value, 'externalId':  encoded_key})
-        self.do_request("POST", True, bundle)
+        self.do_request("POST", "/labels", True, bundle)
 
     def pull_thread(self, force = False):
-        response = self.do_request("GET")
+        if force:
+            wallet_nonce = 1
+        else:
+            wallet_nonce = self.wallet_nonce - 1
+
+        print_error("Asking for labels since nonce", wallet_nonce)
+        response = self.do_request("GET", ("/labels/since/%d/for/%s" % (wallet_nonce, self.wallet_id) ))
         result = {}
-        for label in response:
+        if not response["labels"] is None:
+            for label in response["labels"]:
                 try:
-                key = self.decode(label["external_id"])
+                    key = self.decode(label["externalId"])
-                value = self.decode(label["text"])
+                    value = self.decode(label["encryptedLabel"])
                 except:
                     continue
                 try:
@@ -219,4 +200,5 @@ class Plugin(BasePlugin):
                     wallet.labels[key] = value
 
             self.window.emit(SIGNAL('labels:pulled'))
+            self.set_nonce(response["nonce"] + 1)
             print_error("received %d labels"%len(response))