Work in progress on Label syncing

plugins/labels.py

@@ -0,0 +1,118 @@
+from electrum.util import print_error
+import httplib, urllib
+import hashlib
+import json
+from urlparse import urlparse, parse_qs
+try:
+    import PyQt4
+except:
+    sys.exit("Error: Could not import PyQt4 on Linux systems, you may try 'sudo apt-get install python-qt4'")
+
+from PyQt4.QtGui import *
+from PyQt4.QtCore import *
+import PyQt4.QtCore as QtCore
+import PyQt4.QtGui as QtGui
+
+target_host = 'localhost:3000'
+auth_token = 'jEnsNBb5fAR5rYSBNYnR'
+
+def init(gui):
+    cloud_wallet = CloudWallet(gui.wallet)
+    gui.set_hook('create_settings_tab', add_settings_tab)
+    gui.set_hook('label_changed', label_changed)
+    cloud_wallet.full_pull()
+
+def wallet_id(wallet):
+    return hashlib.sha256(str(wallet.get_master_public_key())).digest().encode('hex')
+
+
+def label_changed(gui,item,label):
+    print "Label changed! Item: %s Label: %s label" % ( item, label)
+    global auth_token, target_host
+    hashed = hashlib.sha256(item).digest().encode('hex')
+    bundle = {"label": {"external_id": hashed, "text": label}}
+    params = json.dumps(bundle)
+    connection = httplib.HTTPConnection(target_host)
+    connection.request("POST", ("/api/wallets/%s/labels.json?auth_token=%s" % (wallet_id(gui.wallet), auth_token)), params, {'Content-Type': 'application/json'})
+
+    response = connection.getresponse()
+    if response.reason == httplib.responses[httplib.NOT_FOUND]:
+        return
+    response = json.loads(response.read())
+
+def add_settings_tab(gui, tabs):
+      cloud_tab = QWidget()
+      layout = QGridLayout(cloud_tab)
+      layout.addWidget(QLabel("API Key: "),0,0)
+      layout.addWidget(QLineEdit(), 0,2)
+
+      layout.addWidget(QLabel("Label sync options: "),1,0)
+      layout.addWidget(QPushButton("Force upload"), 1,1)
+      layout.addWidget(QPushButton("Force download"), 1,2)
+
+      tabs.addTab(cloud_tab, "Label cloud")
+
+def show():
+    print 'showing'
+
+def get_info():
+    return 'Label sync', "Syncs your labels with LabElectrum. Labels are not encrypted, transactions and addresses are however."
+
+def is_enabled():
+    return True
+
+def toggle(gui):
+    return is_enabled()
+
+
+class CloudWallet():
+    def __init__(self, wallet):
+        self.mpk = hashlib.sha256(str(wallet.get_master_public_key())).digest().encode('hex')
+        self.labels = wallet.labels
+        self.transactions = wallet.transactions
+
+        addresses = [] 
+        for k, account in wallet.accounts.items():
+            for address in account[0]:
+                addresses.append(address)
+
+        self.addresses = addresses
+
+
+    def full_pull(self):
+        global target_host, auth_token
+        connection = httplib.HTTPConnection(target_host)
+        connection.request("GET", ("/api/wallets/%s/labels.json?auth_token=%s" % (self.mpk, auth_token)),"", {'Content-Type': 'application/json'})
+        response = connection.getresponse()
+        if response.reason == httplib.responses[httplib.NOT_FOUND]:
+            return
+
+        response = json.loads(response.read())
+        for label in response:
+            for key in self.addresses:
+                target_hashed = hashlib.sha256(key).digest().encode('hex')
+                if label["external_id"] == target_hashed:
+                   if not self.labels.get(key):
+                       self.labels[key] = label["text"] 
+            for key, value in self.transactions.iteritems():
+                target_hashed = hashlib.sha256(key).digest().encode('hex')
+                if label["external_id"] == target_hashed:
+                   if not self.labels.get(key):
+                       self.labels[key] = label["text"] 
+
+    def full_push(self):
+        global target_host, auth_token
+
+        bundle = {"labels": {}}
+        for key, value in self.labels.iteritems():
+            hashed = hashlib.sha256(key).digest().encode('hex')
+            bundle["labels"][hashed] = value
+
+        params = json.dumps(bundle)
+        connection = httplib.HTTPConnection(target_host)
+        connection.request("POST", ("/api/wallets/%s/labels/batch.json?auth_token=%s" % (self.mpk, auth_token)), params, {'Content-Type': 'application/json'})
+
+        response = connection.getresponse()
+        if response.reason == httplib.responses[httplib.NOT_FOUND]:
+            return
+        response = json.loads(response.read())