Initial work on XEP_0070, plugin and examples

slixmpp/plugins/xep_0070/__init__.py

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+"""
+    Slixmpp: The Slick XMPP Library
+    Copyright (C) 2015 Emmanuel Gil Peyrot
+    This file is part of Slixmpp.
+
+    See the file LICENSE for copying permission.
+"""
+
+from slixmpp.plugins.base import register_plugin
+
+from slixmpp.plugins.xep_0070.stanza import Confirm
+from slixmpp.plugins.xep_0070.confirm import XEP_0070
+
+
+register_plugin(XEP_0070)

slixmpp/plugins/xep_0070/confirm.py

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+"""
+    Slixmpp: The Slick XMPP Library
+    Copyright (C) 2015 Emmanuel Gil Peyrot
+    This file is part of Slixmpp.
+
+    See the file LICENSE for copying permission.
+"""
+
+import asyncio
+import logging
+
+from slixmpp.plugins import BasePlugin, register_plugin
+from slixmpp import future_wrapper, Iq, Message
+from slixmpp.exceptions import XMPPError, IqError, IqTimeout
+from slixmpp.xmlstream import JID, register_stanza_plugin
+from slixmpp.xmlstream.handler import Callback
+from slixmpp.xmlstream.matcher import StanzaPath
+from slixmpp.plugins.xep_0070 import stanza, Confirm
+
+
+log = logging.getLogger(__name__)
+
+
+class XEP_0070(BasePlugin):
+
+    """
+    XEP-0070 Verifying HTTP Requests via XMPP
+    """
+
+    name = 'xep_0070'
+    description = 'XEP-0070: Verifying HTTP Requests via XMPP'
+    dependencies = {'xep_0030'}
+    stanza = stanza
+
+    def plugin_init(self):
+        register_stanza_plugin(Iq, Confirm)
+        register_stanza_plugin(Message, Confirm)
+
+        self.xmpp.register_handler(
+            Callback('Confirm',
+                 StanzaPath('iq@type=get/confirm'),
+                 self._handle_iq_confirm))
+
+        self.xmpp.register_handler(
+            Callback('Confirm',
+                 StanzaPath('message/confirm'),
+                 self._handle_message_confirm))
+
+        #self.api.register(self._default_get_confirm,
+        #        'get_confirm',
+        #        default=True)
+
+    def plugin_end(self):
+        self.xmpp.remove_handler('Confirm')
+        self.xmpp['xep_0030'].del_feature(feature='http://jabber.org/protocol/http-auth')
+
+    def session_bind(self, jid):
+        self.xmpp['xep_0030'].add_feature('http://jabber.org/protocol/http-auth')
+
+    def ask_confirm(self, jid, id, url, method, *, ifrom=None, message=None):
+        if message is None:
+            stanza = self.xmpp.Iq()
+            stanza['type'] = 'get'
+        else:
+            stanza = self.xmpp.Message()
+        stanza['from'] = ifrom
+        stanza['to'] = jid
+        stanza['confirm']['id'] = id
+        stanza['confirm']['url'] = url
+        stanza['confirm']['method'] = method
+        if message is not None:
+            stanza['body'] = message.format(id=id, url=url, method=method)
+            stanza.send()
+        else:
+            try:
+                yield from stanza.send()
+            except IqError:
+                return False
+            except IqTimeout:
+                return False
+            else:
+                return True
+
+    def _handle_iq_confirm(self, iq):
+        emitter = iq['from']
+        id = iq['confirm']['id']
+        url = iq['confirm']['url']
+        method = iq['confirm']['method']
+        accept = self.api['get_confirm'](emitter, id, url, method)
+        if not accept:
+            raise XMPPError(etype='auth', condition='not-authorized')
+
+        iq.reply().send()
+
+    def _handle_message_confirm(self, message):
+        emitter = message['from']
+        id = message['confirm']['id']
+        url = message['confirm']['url']
+        method = message['confirm']['method']
+        accept = self.api['get_confirm'](emitter, id, url, method)
+        if not accept:
+            raise XMPPError(etype='auth', condition='not-authorized')
+
+        message.reply().send()
+
+    #def _default_get_confirm(self, jid, id, url, method):
+    #    return False

slixmpp/plugins/xep_0070/stanza.py

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+"""
+    Slixmpp: The Slick XMPP Library
+    Copyright (C) 2015 Emmanuel Gil Peyrot
+    This file is part of Slixmpp.
+
+    See the file LICENSE for copying permission.
+"""
+
+from slixmpp.xmlstream import ElementBase
+
+
+class Confirm(ElementBase):
+
+    name = 'confirm'
+    namespace = 'http://jabber.org/protocol/http-auth'
+    plugin_attrib = 'confirm'
+    interfaces = {'id', 'url', 'method'}