Process gateway registration rejections

A message from gateway registration addres regarding registration
rejection is processed and a dialog displayed to get a new email
address.

Fixes #14

src/bitmessageqt/__init__.py

@@ -2336,7 +2336,20 @@ class MyForm(settingsmixin.SMainWindow):
         if self.getCurrentAccount() is not None and ((self.getCurrentFolder(treeWidget) != "inbox" and self.getCurrentFolder(treeWidget) is not None) or self.getCurrentAccount(treeWidget) != acct.address):
             # Ubuntu should notify of new message irespective of whether it's in current message list or not
             self.ubuntuMessagingMenuUpdate(True, None, acct.toLabel)
-            return
+        if hasattr(acct, "feedback") and acct.feedback != GatewayAccount.ALL_OK:
+            if acct.feedback == GatewayAccount.REGISTRATION_DENIED:
+                self.dialog = EmailGatewayRegistrationDialog(self, _translate("EmailGatewayRegistrationDialog", "Registration failed:"), 
+                    _translate("EmailGatewayRegistrationDialog", "The requested email address is not available, please try a new one. Fill out the new designed email address (including @mailchuck.com) below:")
+                    )
+                if self.dialog.exec_():
+                    email = str(self.dialog.ui.lineEditEmail.text().toUtf8())
+                    # register resets address variables
+                    acct.register(email)
+                    shared.config.set(acct.fromAddress, 'label', email)
+                    shared.config.set(acct.fromAddress, 'gateway', 'mailchuck')
+                    shared.writeKeysFile()
+                    self.statusBar().showMessage(_translate(
+                        "MainWindow", "Sending email gateway registration request"))
 
     def click_pushButtonAddAddressBook(self):
         self.AddAddressDialogInstance = AddAddressDialog(self)
@@ -4310,6 +4323,19 @@ class EmailGatewayDialog(QtGui.QDialog):
         QtGui.QWidget.resize(self, QtGui.QWidget.sizeHint(self))
 
 
+class EmailGatewayRegistrationDialog(QtGui.QDialog):
+
+    def __init__(self, parent, title, label):
+        QtGui.QWidget.__init__(self, parent)
+        self.ui = Ui_EmailGatewayRegistrationDialog()
+        self.ui.setupUi(self)
+        self.parent = parent
+        self.setWindowTitle(title)
+        self.ui.label.setText(label)
+
+        QtGui.QWidget.resize(self, QtGui.QWidget.sizeHint(self))
+
+
 class AddAddressDialog(QtGui.QDialog):
 
     def __init__(self, parent):

src/bitmessageqt/account.py

@@ -138,6 +138,8 @@ class BroadcastAccount(BMAccount):
         
 class GatewayAccount(BMAccount):
     gatewayName = None
+    ALL_OK = 0
+    REGISTRATION_DENIED = 1
     def __init__(self, address):
         super(BMAccount, self).__init__(address)
         
@@ -179,6 +181,7 @@ class MailchuckAccount(GatewayAccount):
     regExpOutgoing = re.compile("(\S+) (.*)")
     def __init__(self, address):
         super(GatewayAccount, self).__init__(address)
+        self.feedback = self.ALL_OK
         
     def createMessage(self, toAddress, fromAddress, subject, message):
         self.subject = toAddress + " " + subject
@@ -273,3 +276,7 @@ class MailchuckAccount(GatewayAccount):
                 if not matches.group(1) is None:
                     self.toLabel = matches.group(1)
                     self.toAddress = matches.group(1)
+        self.feedback = self.ALL_OK
+        if fromAddress == self.registrationAddress and self.subject == "Registration Request Denied":
+            self.feedback = self.REGISTRATION_DENIED
+        return self.feedback

src/bitmessageqt/emailgateway.py

@@ -72,3 +72,32 @@ class Ui_EmailGatewayDialog(object):
         self.label.setText(QtGui.QApplication.translate("EmailGatewayDialog", "Email gateway allows you to communicate with email users. Currently, only the Mailchuck email gateway (@mailchuck.com) is available.", None, QtGui.QApplication.UnicodeUTF8))
         self.label_2.setText(QtGui.QApplication.translate("EmailGatewayDialog", "Desired email address (including @mailchuck.com):", None, QtGui.QApplication.UnicodeUTF8))
 
+
+class Ui_EmailGatewayRegistrationDialog(object):
+    def setupUi(self, EmailGatewayRegistrationDialog):
+        EmailGatewayRegistrationDialog.setObjectName(_fromUtf8("EmailGatewayRegistrationDialog"))
+        EmailGatewayRegistrationDialog.resize(386, 172)
+        self.gridLayout = QtGui.QGridLayout(EmailGatewayRegistrationDialog)
+        self.gridLayout.setObjectName(_fromUtf8("gridLayout"))
+        self.label = QtGui.QLabel(EmailGatewayRegistrationDialog)
+        self.label.setWordWrap(True)
+        self.label.setObjectName(_fromUtf8("label"))
+        self.gridLayout.addWidget(self.label, 0, 0, 1, 1)
+        self.lineEditEmail = QtGui.QLineEdit(EmailGatewayRegistrationDialog)
+        self.lineEditEmail.setObjectName(_fromUtf8("lineEditEmail"))
+        self.gridLayout.addWidget(self.lineEditEmail, 1, 0, 1, 1)
+        self.buttonBox = QtGui.QDialogButtonBox(EmailGatewayRegistrationDialog)
+        self.buttonBox.setMinimumSize(QtCore.QSize(368, 0))
+        self.buttonBox.setOrientation(QtCore.Qt.Horizontal)
+        self.buttonBox.setStandardButtons(QtGui.QDialogButtonBox.Cancel|QtGui.QDialogButtonBox.Ok)
+        self.buttonBox.setObjectName(_fromUtf8("buttonBox"))
+        self.gridLayout.addWidget(self.buttonBox, 7, 0, 1, 1)
+
+        self.retranslateUi(EmailGatewayRegistrationDialog)
+        QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("accepted()")), EmailGatewayRegistrationDialog.accept)
+        QtCore.QObject.connect(self.buttonBox, QtCore.SIGNAL(_fromUtf8("rejected()")), EmailGatewayRegistrationDialog.reject)
+        QtCore.QMetaObject.connectSlotsByName(EmailGatewayRegistrationDialog)
+
+    def retranslateUi(self, EmailGatewayRegistrationDialog):
+        EmailGatewayRegistrationDialog.setWindowTitle(QtGui.QApplication.translate("EmailGatewayRegistrationDialog", "Email gateway registration", None, QtGui.QApplication.UnicodeUTF8))
+        self.label.setText(QtGui.QApplication.translate("EmailGatewayRegistrationDialog", "Email gateway allows you to communicate with email users. Currently, only the Mailchuck email gateway (@mailchuck.com) is available.\nPlease type the desiged email address (including @mailchuck.com) below:", None, QtGui.QApplication.UnicodeUTF8))