Electrum for Android, first commit

client/electrum4a.py

@@ -0,0 +1,511 @@
+#!/usr/bin/env python
+#
+# Electrum - lightweight Bitcoin client
+# Copyright (C) 2011 thomasv@gitorious
+#
+# 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/>.
+
+
+
+import android
+from interface import WalletSynchronizer
+from wallet import Wallet
+from wallet import format_satoshis
+from decimal import Decimal
+
+droid = android.Android()
+wallet = Wallet()
+wallet.set_path("/sdcard/electrum.dat")
+wallet.read()
+
+
+def get_history_layout(n):
+    lines = wallet.get_tx_history()[-n:]
+    rows = ""
+    for line in lines:
+        import datetime
+        v = line['value'] 
+        if line.has_key('timestamp'):
+            dt = datetime.datetime.fromtimestamp( line['timestamp'] )
+            if dt.date() == dt.today().date():
+                time_str = str( dt.time() )
+            else:
+                time_str = str( dt.date() )
+        else:
+            time_str = 'pending'
+
+        label = line.get('label')
+        if not label: label = line['tx_hash']
+
+        rows += """
+    <TableRow>
+        <TextView
+            android:text="%s"
+            android:padding="2px" />
+        <TextView
+            android:text="%s"
+            android:padding="2px" />
+        <TextView
+            android:text="%s"
+            android:gravity="right"
+            android:padding="2px" />
+    </TableRow>"""%(time_str, ' '+ label[0:10]+ '... ',  format_satoshis(v))
+
+
+    output = """
+<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="fill_parent"
+    android:layout_height="wrap_content"
+    android:stretchColumns="*">
+    %s
+</TableLayout>
+"""% rows
+    return output
+
+
+
+def show_addresses():
+    droid.dialogCreateAlert("Addresses:")
+    l = []
+    for i in range(len(wallet.addresses)):
+        addr = wallet.addresses[i]
+        l.append( wallet.labels.get(addr,'') + ' ' + addr)
+
+    droid.dialogSetItems(l)
+    droid.dialogShow()
+    response = droid.dialogGetResponse().result
+    droid.dialogDismiss()
+
+    # show qr code
+    print response
+
+
+
+main_layout = """<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+id/background"
+        android:orientation="vertical" android:layout_width="match_parent"
+        android:layout_height="match_parent" android:background="#ff000000">
+
+        <TextView android:id="@+id/historyTextView" 
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" 
+                android:text="History"
+                android:textAppearance="?android:attr/textAppearanceLarge" 
+                android:gravity="center_vertical|center_horizontal|center">
+        </TextView>
+
+        %s
+
+        <TextView android:id="@+id/balanceTextView" 
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" 
+                android:text="TextView"
+                android:textAppearance="?android:attr/textAppearanceLarge" 
+                android:gravity="center_vertical|center_horizontal|center">
+        </TextView>
+
+        <LinearLayout android:layout_width="match_parent"
+                android:layout_height="wrap_content" android:id="@+id/linearLayout1">
+                <Button android:id="@+id/buttonSend" android:layout_width="wrap_content"
+                        android:layout_height="wrap_content" android:text="Send"></Button>
+                <Button android:id="@+id/buttonReceive" android:layout_width="wrap_content"
+                        android:layout_height="wrap_content" android:text="Receive"></Button>
+                <Button android:id="@+id/buttonQuit" android:layout_width="wrap_content"
+                        android:layout_height="wrap_content" android:text="Quit"></Button>
+        </LinearLayout>
+
+</LinearLayout>
+"""%get_history_layout(10)
+
+
+payto_layout="""<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+id/background"
+        android:orientation="vertical" 
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" 
+        android:background="#ff000000">
+
+        <TextView android:id="@+id/recipientTextView" 
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" 
+                android:text="Pay to:"
+                android:textAppearance="?android:attr/textAppearanceLarge" 
+                android:gravity="left">
+        </TextView>
+
+        <EditText android:id="@+id/recipient"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" 
+                android:tag="Tag Me" android:inputType="textCapWords|textPhonetic|number">
+        </EditText>
+
+        <TextView android:id="@+id/labelTextView" 
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" 
+                android:text="Description:"
+                android:textAppearance="?android:attr/textAppearanceLarge" 
+                android:gravity="left">
+        </TextView>
+
+        <EditText android:id="@+id/label"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" 
+                android:tag="Tag Me" android:inputType="textCapWords|textPhonetic|number">
+        </EditText>
+
+        <TextView android:id="@+id/amountLabelTextView" 
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" 
+                android:text="Amount:"
+                android:textAppearance="?android:attr/textAppearanceLarge" 
+                android:gravity="left">
+        </TextView>
+
+        <EditText android:id="@+id/amount"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" 
+                android:tag="Tag Me" android:inputType="textCapWords|number">
+        </EditText>
+
+        <LinearLayout android:layout_width="match_parent"
+                android:layout_height="wrap_content" android:id="@+id/linearLayout1">
+                <Button android:id="@+id/buttonContacts" android:layout_width="wrap_content"
+                        android:layout_height="wrap_content" android:text="Contacts"></Button>
+                <Button android:id="@+id/buttonPay" android:layout_width="wrap_content"
+                        android:layout_height="wrap_content" android:text="Send"></Button>
+                <Button android:id="@+id/buttonCancelSend" android:layout_width="wrap_content"
+                        android:layout_height="wrap_content" android:text="Cancel"></Button>
+        </LinearLayout>
+</LinearLayout>
+"""
+
+
+settings_layout = """<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+        android:id="@+id/background"
+        android:orientation="vertical" 
+        android:layout_width="match_parent"
+        android:layout_height="match_parent" 
+        android:background="#ff000000">
+
+        <TextView android:id="@+id/serverTextView" 
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" 
+                android:text="Server:"
+                android:textAppearance="?android:attr/textAppearanceLarge" 
+                android:gravity="left">
+        </TextView>
+
+        <EditText android:id="@+id/server"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content" 
+                android:tag="Tag Me" android:inputType="*">
+        </EditText>
+
+        <LinearLayout android:layout_width="match_parent"
+                android:layout_height="wrap_content" android:id="@+id/linearLayout1">
+                <Button android:id="@+id/buttonServer" android:layout_width="wrap_content"
+                        android:layout_height="wrap_content" android:text="Server List"></Button>
+                <Button android:id="@+id/buttonSave" android:layout_width="wrap_content"
+                        android:layout_height="wrap_content" android:text="Save"></Button>
+                <Button android:id="@+id/buttonCancel" android:layout_width="wrap_content"
+                        android:layout_height="wrap_content" android:text="Cancel"></Button>
+        </LinearLayout>
+
+</LinearLayout>
+"""
+
+
+
+droid.addOptionsMenuItem("Settings","settings",None,"")
+droid.addOptionsMenuItem("Quit","quit",None,"")
+
+
+def show_balance():
+    c, u = wallet.get_balance()
+    droid.fullSetProperty("balanceTextView","text","Balance:"+format_satoshis(c))
+
+
+def recipient_dialog():
+    title = 'Pay to:'
+    message = ('Select recipient')
+    droid.dialogCreateAlert(title, message)
+    droid.dialogSetItems(wallet.addressbook)
+    droid.dialogShow()
+    response = droid.dialogGetResponse()
+    result = response.result.get('item')
+    droid.dialogDismiss()
+    if result is not None:
+        addr = wallet.addressbook[result]
+        return addr
+
+
+def pay_to(recipient, amount, fee, label):
+
+    if wallet.use_encryption:
+        password  = droid.dialogGetPassword('Password').result
+        print "password", password
+    else:
+        password = None
+
+    droid.dialogCreateSpinnerProgress("Electrum", "signing transaction...")
+    droid.dialogShow()
+    tx = wallet.mktx( recipient, amount, label, password, fee)
+    print tx
+    droid.dialogDismiss()
+
+    if tx:
+        r, h = wallet.sendtx( tx )
+        droid.dialogCreateAlert('tx sent', h)
+        droid.dialogSetPositiveButtonText('OK')
+        droid.dialogShow()
+        response = droid.dialogGetResponse().result
+        droid.dialogDismiss()
+        return h
+    else:
+        return 'error'
+
+
+
+
+
+
+
+if not wallet.file_exists:
+    droid.dialogCreateAlert("wallet file not found")
+    droid.dialogSetPositiveButtonText('OK')
+    droid.dialogShow()
+    resp = droid.dialogGetResponse().result
+    exit(1)
+
+
+
+
+droid.dialogCreateSpinnerProgress("Electrum", "synchronizing")
+droid.dialogShow()
+WalletSynchronizer(wallet,True).start()
+wallet.update()
+wallet.save()
+droid.dialogDismiss()
+droid.vibrate()
+
+
+
+def main_loop():
+
+    droid.fullShow(main_layout)
+    show_balance()
+
+    out = None
+    while out is None:
+
+        event = droid.eventWait().result
+        print "got event in main loop", event
+
+        if event["name"]=="click":
+            id=event["data"]["id"]
+            if id=="buttonQuit":
+                out = 'exit'
+
+            elif id=="buttonSend":
+                out = 'payto'
+
+            elif id=="buttonReceive":
+                show_addresses()
+
+            elif id=="buttonQuit":
+                out = 'quit'
+
+        elif event["name"]=="settings":
+            out = 'settings'
+
+        elif event["name"]=="quit":
+            out = 'quit'
+
+            #print droid.fullSetProperty("background","backgroundColor","0xff7f0000")
+        #elif event["name"]=="screen":
+        #    if event["data"]=="destroy":
+        #        out = 'exit'
+
+    #droid.fullDismiss()
+    return out
+                    
+def payto_loop():
+    droid.fullShow(payto_layout)
+    out = None
+    while out is None:
+        event = droid.eventWait().result
+        print "got event in payto loop", event
+
+        if event["name"] == "click":
+            id = event["data"]["id"]
+
+            if id=="buttonPay":
+
+                droid.fullQuery()
+                recipient = droid.fullQueryDetail("recipient").result.get('text')
+                label  = droid.fullQueryDetail("label").result.get('text')
+                amount = droid.fullQueryDetail('amount').result.get('text')
+                fee    = '0.001'
+                amount = int( 100000000 * Decimal(amount) )
+                fee    = int( 100000000 * Decimal(fee) )
+                result = pay_to(recipient, amount, fee, label)
+
+                droid.dialogCreateAlert('result', result)
+                droid.dialogSetPositiveButtonText('OK')
+                droid.dialogShow()
+                droid.dialogGetResponse()
+                droid.dialogDismiss()
+                out = 'main'
+
+                
+            elif id=="buttonContacts":
+                addr = recipient_dialog()
+                droid.fullSetProperty("recipient","text",addr)
+                
+            elif id=="buttonCancelSend":
+                out = 'main'
+
+        elif event["name"]=="settings":
+            out = 'settings'
+
+        elif event["name"]=="quit":
+            out = 'quit'
+
+        #elif event["name"]=="screen":
+        #    if event["data"]=="destroy":
+        #        out = 'main'
+
+    #droid.fullDismiss()
+    return out
+
+
+def history_loop():
+    layout = get_history_layout()
+    droid.fullShow(layout)
+    out = None
+    while out is None:
+        event = droid.eventWait().result
+        print "got event in history loop", event
+        if event["name"] == "click":
+
+            if event["data"]["text"] == "OK":
+                out = 'main'
+
+        elif event["name"] == "key":
+            print repr(event["data"]["key"])
+            if event["data"]["key"] == '4':
+                out = 'main'
+
+        #elif event["name"]=="screen":
+        #    if event["data"]=="destroy":
+        #        out = 'main'
+
+    #droid.fullQuery()
+    #print "Data entered =",droid.fullQueryDetail("editText1").result
+    #droid.fullDismiss()
+    return out
+
+def server_dialog(plist):
+    droid.dialogCreateAlert("servers")
+    droid.dialogSetItems( plist.keys() )
+    droid.dialogShow()
+    i = droid.dialogGetResponse().result.get('item')
+    droid.dialogDismiss()
+    if i is not None:
+        response = plist.keys()[i]
+        return response
+
+def protocol_dialog(plist):
+    options=["TCP","HTTP","native"]
+    droid.dialogCreateAlert("Protocol")
+    droid.dialogSetSingleChoiceItems(options)
+
+
+
+def settings_loop():
+    droid.fullShow(settings_layout)
+    droid.fullSetProperty("server","text",wallet.server)
+
+    out = None
+    while out is None:
+        event = droid.eventWait().result
+        if event["name"] == "click":
+
+            id = event["data"]["id"]
+
+            if id=="buttonServer":
+                plist = {}
+                for item in wallet.interface.servers:
+                    host, pp = item
+                    z = {}
+                    for item2 in pp:
+                        protocol, port = item2
+                        z[protocol] = port
+                    plist[host] = z
+
+                host = server_dialog(plist)
+                p = plist[host]
+                port = p['t']
+                srv = host + ':' + port + ':t'
+                droid.fullSetProperty("server","text",srv)
+
+            elif id=="buttonSave":
+                droid.fullQuery()
+                srv = droid.fullQueryDetail("server").result.get('text')
+                try:
+                    wallet.set_server(srv)
+                    out = 'main'
+                except:
+                    droid.dialogCreateAlert('error')
+                    droid.dialogSetPositiveButtonText('OK')
+                    droid.dialogShow()
+                    droid.dialogGetResponse()
+                    droid.dialogDismiss()
+                    
+            elif id=="buttonCancel":
+                out = 'main'
+
+        elif event["name"] == "key":
+            print repr(event["data"]["key"])
+            if event["data"]["key"] == '4':
+                out = 'main'
+
+        elif event["name"]=="quit":
+            out = 'quit'
+
+    return out
+
+                
+
+
+s = 'main'
+while True:
+    if s == 'main':
+        s = main_loop()
+    elif s == 'payto':
+        s = payto_loop()
+    elif s == 'settings':
+        s = settings_loop()
+    elif s == 'history':
+        s = history_loop()
+    elif s == 'contacts':
+        s = contacts_loop()
+    else:
+        break
+
+droid.fullDismiss()
+droid.makeToast("Bye!")