jsonrpc interface

gui/jsonrpc.py

@@ -0,0 +1,120 @@
+#!/usr/bin/env python
+#
+# Electrum - lightweight Bitcoin client
+# Copyright (C) 2015 Thomas Voegtlin
+#
+# 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/>.
+
+
+"""
+jsonrpc interface for webservers
+"""
+
+import socket, os
+from jsonrpclib.SimpleJSONRPCServer import SimpleJSONRPCServer, SimpleJSONRPCRequestHandler
+
+from electrum.wallet import WalletStorage, Wallet
+from electrum.commands import known_commands, Commands
+
+
+class RequestHandler(SimpleJSONRPCRequestHandler):
+
+    def do_OPTIONS(self):
+        self.send_response(200)
+        self.end_headers()
+
+    def end_headers(self):
+        self.send_header("Access-Control-Allow-Headers", 
+                         "Origin, X-Requested-With, Content-Type, Accept")
+        self.send_header("Access-Control-Allow-Origin", "*")
+        SimpleJSONRPCRequestHandler.end_headers(self)
+
+
+
+class ElectrumGui:
+
+    def __init__(self, config, network):
+        self.network = network
+        self.config = config
+        host = config.get('rpchost', 'localhost')
+        port = config.get('rpcport', 7777)
+        self.server = SimpleJSONRPCServer((host, port), requestHandler=RequestHandler)
+        self.server.socket.settimeout(1)
+        self.server.register_function(self.do_getrequest, 'getrequest')
+
+    def do_getrequest(self, key):
+        # fixme: we load and sync the wallet on each request
+        # the wallet should be synchronized in the daemon instead
+        storage = WalletStorage(self.config.get_wallet_path())
+        if not storage.file_exists:
+            raise BaseException("Wallet not found")
+        wallet = Wallet(storage)
+        wallet.start_threads(self.network)
+        cmd_runner = Commands(self.config, wallet, self.network)
+        result = cmd_runner.getrequest(key)
+        wallet.stop_threads()
+        return result
+
+    def main(self, url):
+        while True:
+            try:
+                self.server.handle_request()
+            except socket.timeout:
+                continue
+            except:
+                break
+
+
+
+"""
+* replace merchant script:
+    * client process that connects to the daemon, receives notifications and pushes callbacks
+    * it requires a new gui type
+
+     electrum -g jsonrpc &
+or:  electrum daemon loadwallet
+
+
+use the daemon:
+  pros: single process instead of 2
+  jsonrpc is not really a gui
+
+  the wallet sould be synced in the daemon (so that we can add requests from the gui, list them, etc)
+
+  short-term solution:
+    * serve jsonrpc requests with the daemon
+    * load wallet on each command
+    * open some rpc commands to public
+
+ * other solution:
+    * use a database
+    * 'addrequest' writes request to database
+
+the daemon does not need to load and sync the wallet
+
+ * daemon loadwallet
+ * 
+
+
+ Private methods: 
+    wallet commands
+
+ Public methods:
+  - getrequest(key)
+  - paymentack(): 
+     is sent as the body of the POST
+  
+
+
+"""