Expand support for XEP-0184.

New stanza interfaces:

    Adding a message receipt request:

        msg['request_receipt'] = True

    Adding a message receipt:

        msg['receipt'] = '123-24234'

    Retrieving the acked message ID:

        ack_id = msg['receipt']
        print(ack_id)
        '123-24234'

New configuration options:

    auto_ack:
        If True, auto reply to messages that request receipts.

        Defaults to True

    auto_request:
        If True, auto add receipt requests to appropriate outgoing
        messages.

        Defaults to False

4 files changed, 158 insertions, 59 deletions

diff --git a/sleekxmpp/plugins/xep_0184/__init__.py b/sleekxmpp/plugins/xep_0184/__init__.py
index 01de14aa..4b129b6b 100644
--- a/sleekxmpp/plugins/xep_0184/__init__.py
+++ b/sleekxmpp/plugins/xep_0184/__init__.py
@@ -9,7 +9,7 @@
 from sleekxmpp.plugins.base import register_plugin
 
 from sleekxmpp.plugins.xep_0184.stanza import Request, Received
-from sleekxmpp.plugins.xep_0184.reciept import XEP_0184
+from sleekxmpp.plugins.xep_0184.receipt import XEP_0184
 
 
 register_plugin(XEP_0184)
diff --git a/sleekxmpp/plugins/xep_0184/receipt.py b/sleekxmpp/plugins/xep_0184/receipt.py
new file mode 100644
index 00000000..c0086b03
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0184/receipt.py
@@ -0,0 +1,120 @@
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Copyright (C) 2012 Erik Reuterborg Larsson, Nathanael C. Fritz
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+
+import logging
+
+from sleekxmpp.stanza import Message
+from sleekxmpp.xmlstream import register_stanza_plugin
+from sleekxmpp.xmlstream.handler import Callback
+from sleekxmpp.xmlstream.matcher import StanzaPath
+from sleekxmpp.plugins import BasePlugin
+from sleekxmpp.plugins.xep_0184 import stanza, Request, Received
+
+
+class XEP_0184(BasePlugin):
+
+    """
+    XEP-0184: Message Delivery Receipts
+    """
+
+    name = 'xep_0184'
+    description = 'XEP-0184: Message Delivery Receipts'
+    dependencies = set(['xep_0030'])
+    stanza = stanza
+
+    ack_types = ('normal', 'chat', 'headline')
+
+    def plugin_init(self):
+        self.auto_ack = self.config.get('auto_ack', True)
+        self.auto_request = self.config.get('auto_request', False)
+
+        register_stanza_plugin(Message, Request)
+        register_stanza_plugin(Message, Received)
+
+        self.xmpp.add_filter('out', self._filter_add_receipt_request)
+
+        self.xmpp.register_handler(
+                Callback('Message Receipt',
+                    StanzaPath('message/receipt'),
+                    self._handle_receipt_received))
+
+        self.xmpp.register_handler(
+                Callback('Message Receipt Request',
+                    StanzaPath('message/request_receipt'),
+                    self._handle_receipt_request))
+
+        self.xmpp['xep_0030'].add_feature('urn:xmpp:receipts')
+
+    def ack(self, msg):
+        """
+        Acknowledge a message by sending a receipt.
+
+        Arguments:
+            msg -- The message to acknowledge.
+        """
+        ack = self.xmpp.Message()
+        ack['to'] = msg['from']
+        ack['from'] = msg['to']
+        ack['receipt'] = msg['id']
+        ack['id'] = self.xmpp.new_id()
+        ack.send()
+
+    def _handle_receipt_received(self, msg):
+        self.xmpp.event('receipt_received', msg)
+
+    def _handle_receipt_request(self, msg):
+        """
+        Auto-ack message receipt requests if ``self.auto_ack`` is ``True``.
+
+        Arguments:
+            msg -- The incoming message requesting a receipt.
+        """
+        if self.auto_ack:
+            if msg['type'] in self.ack_types:
+                if not msg['receipt']:
+                    self.ack(msg)
+
+    def _filter_add_receipt_request(self, stanza):
+        """
+        Auto add receipt requests to outgoing messages, if:
+
+            - ``self.auto_request`` is set to ``True``
+            - The message is not for groupchat
+            - The message does not contain a receipt acknowledgment
+            - The recipient is a bare JID or, if a full JID, one
+              that has the ``urn:xmpp:receipts`` feature enabled
+
+        The disco cache is checked if a full JID is specified in
+        the outgoing message, which may mean a round-trip disco#info
+        delay for the first message sent to the JID if entity caps
+        are not used.
+        """
+
+        if not self.auto_request:
+            return stanza
+
+        if not isinstance(stanza, Message):
+            return stanza
+                
+        if stanza['request_receipt']:
+            return stanza
+
+        if not stanza['type'] in self.ack_types:
+            return stanza
+                    
+        if stanza['receipt']:
+            return stanza
+
+        if stanza['to'].resource:
+            if not self.xmpp['xep_0030'].supports(stanza['to'],
+                    feature='urn:xmpp:receipts',
+                    cached=True):
+                return stanza
+
+        stanza['request_receipt'] = True
+        return stanza
diff --git a/sleekxmpp/plugins/xep_0184/reciept.py b/sleekxmpp/plugins/xep_0184/reciept.py
deleted file mode 100644
index fd3f24e7..00000000
--- a/sleekxmpp/plugins/xep_0184/reciept.py
+++ /dev/null
@@ -1,45 +0,0 @@
-"""
-    SleekXMPP: The Sleek XMPP Library
-    Copyright (C) 2012 Erik Reuterborg Larsson, Nathanael C. Fritz
-    This file is part of SleekXMPP.
-
-    See the file LICENSE for copying permission.
-"""
-
-from sleekxmpp.stanza import Message
-from sleekxmpp.xmlstream import register_stanza_plugin
-from sleekxmpp.plugins import BasePlugin
-from sleekxmpp.plugins.xep_0184 import stanza, Request, Received
-
-
-class XEP_0184(BasePlugin):
-
-    """
-    XEP-0184: Message Delivery Receipts
-    """
-
-    name = 'xep_0184'
-    description = 'XEP-0184: Message Delivery Receipts'
-    dependencies = set(['xep_0030'])
-    stanza = stanza
-
-    def plugin_init(self):
-        register_stanza_plugin(Message, Request)
-        register_stanza_plugin(Message, Received)
-
-        self.xmpp.plugin['xep_0030'].add_feature('urn:xmpp:receipts')
-
-    def ack(self, message):
-        """
-        Acknowledges a message
-
-        Arguments:
-            message -- The message to acknowledge.
-        """
-        mto = message['to']
-        mfrom = message['from']
-        mid = message['id']
-        msg = self.xmpp.make_message(mto=mfrom, mfrom=mto)
-        msg['reciept_received']['id'] = mid
-        msg['id'] = self.xmpp.new_id()
-        msg.send()
diff --git a/sleekxmpp/plugins/xep_0184/stanza.py b/sleekxmpp/plugins/xep_0184/stanza.py
index 42ba8c3f..d1654ef8 100644
--- a/sleekxmpp/plugins/xep_0184/stanza.py
+++ b/sleekxmpp/plugins/xep_0184/stanza.py
@@ -12,34 +12,58 @@ from sleekxmpp.xmlstream.stanzabase import ElementBase, ET
 class Request(ElementBase):
     namespace = 'urn:xmpp:receipts'
     name = 'request'
-    plugin_attrib = 'request_reciept'
-    interfaces = set(('request_reciept',))
+    plugin_attrib = 'request_receipt'
+    interfaces = set(('request_receipt',))
+    sub_interfaces = interfaces
     is_extension = True
 
     def setup(self, xml=None):
         self.xml = ET.Element('')
         return True
 
-    def set_request_reciept(self, val):
-        self.del_request_reciept()
-        parent = self.parent()
+    def set_request_receipt(self, val):
+        self.del_request_receipt()
         if val:
-            self.xml = ET.Element("{%s}%s" % (self.namespace, self.name))
-            parent.append(self.xml)
+            parent = self.parent()
+            parent._set_sub_text("{%s}request" % self.namespace, keep=True)
 
-    def get_request_reciept(self):
+    def get_request_receipt(self):
         parent = self.parent()
-        if parent.find("{%s}%s" % (self.namespace, self.name)) is not None:
+        if parent.find("{%s}request" % self.namespace) is not None:
             return True
         else:
             return False
 
-    def del_request_reciept(self):
-        self.xml = ET.Element('')
+    def del_request_receipt(self):
+        self.parent()._del_sub("{%s}request" % self.namespace)
 
 
 class Received(ElementBase):
     namespace = 'urn:xmpp:receipts'
     name = 'received'
-    plugin_attrib = 'reciept_received'
-    interfaces = set(('id',))
+    plugin_attrib = 'receipt'
+    interfaces = set(['receipt'])
+    sub_interfaces = interfaces
+    is_extension = True
+
+    def setup(self, xml=None):
+        self.xml = ET.Element('')
+        return True
+
+    def set_receipt(self, value):
+        self.del_receipt()
+        if value:
+            parent = self.parent()
+            xml = ET.Element("{%s}received" % self.namespace)
+            xml.attrib['id'] = value
+            parent.append(xml)
+
+    def get_receipt(self):
+        parent = self.parent()
+        xml = parent.find("{%s}received" % self.namespace)
+        if xml is not None:
+            return xml.attrib.get('id', '')
+        return ''
+
+    def del_receipt(self):
+        self.parent()._del_sub('{%s}received' % self.namespace)