Merge pull request #345 from sangeeths/xep_0332

XEP-0332: HTTP over XMPP transport

6 files changed, 329 insertions, 0 deletions

diff --git a/sleekxmpp/plugins/xep_0332/__init__.py b/sleekxmpp/plugins/xep_0332/__init__.py
new file mode 100644
index 00000000..27755faa
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0332/__init__.py
@@ -0,0 +1,17 @@
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Implementation of HTTP over XMPP transport
+    http://xmpp.org/extensions/xep-0332.html
+    Copyright (C) 2015 Riptide IO, sangeeth@riptideio.com
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+
+from sleekxmpp.plugins.base import register_plugin
+
+from sleekxmpp.plugins.xep_0332 import stanza
+from sleekxmpp.plugins.xep_0332.http import XEP_0332
+
+
+register_plugin(XEP_0332)
diff --git a/sleekxmpp/plugins/xep_0332/http.py b/sleekxmpp/plugins/xep_0332/http.py
new file mode 100644
index 00000000..36b6995f
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0332/http.py
@@ -0,0 +1,143 @@
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Implementation of HTTP over XMPP transport
+    http://xmpp.org/extensions/xep-0332.html
+    Copyright (C) 2015 Riptide IO, sangeeth@riptideio.com
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+
+import logging
+
+from sleekxmpp import Iq
+
+from sleekxmpp.xmlstream import register_stanza_plugin
+from sleekxmpp.xmlstream.handler import Callback
+from sleekxmpp.xmlstream.matcher import StanzaPath
+
+from sleekxmpp.plugins.base import BasePlugin
+from sleekxmpp.plugins.xep_0332.stanza import Request, Response, Data
+from sleekxmpp.plugins.xep_0131.stanza import Headers
+
+
+log = logging.getLogger(__name__)
+
+
+class XEP_0332(BasePlugin):
+    """
+    XEP-0332: HTTP over XMPP transport
+    """
+
+    name = 'xep_0332'
+    description = 'XEP-0332: HTTP over XMPP transport'
+
+    #: xep_0047 not included.
+    #: xep_0001, 0137 and 0166 are missing
+    dependencies = set(['xep_0030', 'xep_0131'])
+
+    #: TODO: Do we really need to mention the supported_headers?!
+    default_config = {
+        'supported_headers': set([
+            'Content-Length', 'Transfer-Encoding', 'DateTime',
+            'Accept-Charset', 'Location', 'Content-ID', 'Description',
+            'Content-Language', 'Content-Transfer-Encoding', 'Timestamp',
+            'Expires', 'User-Agent', 'Host', 'Proxy-Authorization', 'Date',
+            'WWW-Authenticate', 'Accept-Encoding', 'Server', 'Error-Info',
+            'Identifier', 'Content-Location', 'Content-Encoding', 'Distribute',
+            'Accept', 'Proxy-Authenticate', 'ETag', 'Expect', 'Content-Type'
+        ])
+    }
+
+    def plugin_init(self):
+        self.xmpp.register_handler(Callback(
+            'HTTP Request', StanzaPath('iq/req'), self._handle_request
+        ))
+        self.xmpp.register_handler(Callback(
+            'HTTP Response', StanzaPath('iq/resp'), self._handle_response
+        ))
+        register_stanza_plugin(Iq, Request, iterable=True)
+        register_stanza_plugin(Iq, Response, iterable=True)
+        register_stanza_plugin(Request, Headers, iterable=True)
+        register_stanza_plugin(Request, Data, iterable=True)
+        register_stanza_plugin(Response, Headers, iterable=True)
+        register_stanza_plugin(Response, Data, iterable=True)
+        # TODO: Should we register any api's here? self.api.register()
+
+    def plugin_end(self):
+        self.xmpp.remove_handler('HTTP Request')
+        self.xmpp.remove_handler('HTTP Response')
+        self.xmpp['xep_0030'].del_feature('urn:xmpp:http')
+        for header in self.supported_headers:
+            self.xmpp['xep_0030'].del_feature(
+                feature='%s#%s' % (Headers.namespace, header)
+            )
+
+    def session_bind(self, jid):
+        self.xmpp['xep_0030'].add_feature('urn:xmpp:http')
+        for header in self.supported_headers:
+            self.xmpp['xep_0030'].add_feature(
+                '%s#%s' % (Headers.namespace, header)
+            )
+            # TODO: Do we need to add the supported headers to xep_0131?
+            # self.xmpp['xep_0131'].supported_headers.add(header)
+
+    def _handle_request(self, iq):
+        self.xmpp.event('http_request', iq)
+
+    def _handle_response(self, iq):
+        self.xmpp.event('http_response', iq)
+
+    def send_request(self, to=None, method=None, resource=None, headers=None,
+                     data=None, **kwargs):
+        iq = self.xmpp.Iq()
+        iq['from'] = self.xmpp.boundjid
+        iq['to'] = to
+        iq['type'] = 'set'
+        iq['req']['headers'] = headers
+        iq['req']['method'] = method
+        iq['req']['resource'] = resource
+        iq['req']['version'] = '1.1'        # TODO: set this implicitly
+        if data is not None:
+            iq['req']['data'] = data
+        return iq.send(
+            timeout=kwargs.get('timeout', None),
+            block=kwargs.get('block', True),
+            callback=kwargs.get('callback', None),
+            timeout_callback=kwargs.get('timeout_callback', None)
+        )
+
+    def send_response(self, to=None, code=None, message=None, headers=None,
+                      data=None, **kwargs):
+        iq = self.xmpp.Iq()
+        iq['from'] = self.xmpp.boundjid
+        iq['to'] = to
+        iq['type'] = 'result'
+        iq['resp']['headers'] = headers
+        iq['resp']['code'] = code
+        iq['resp']['message'] = message
+        iq['resp']['version'] = '1.1'       # TODO: set this implicitly
+        if data is not None:
+            iq['resp']['data'] = data
+        return iq.send(
+            timeout=kwargs.get('timeout', None),
+            block=kwargs.get('block', True),
+            callback=kwargs.get('callback', None),
+            timeout_callback=kwargs.get('timeout_callback', None)
+        )
+
+    def send_error(self, to=None, ecode=500, etype='wait',
+                   econd='internal-server-error', **kwargs):
+        iq = self.xmpp.Iq()
+        iq['type'] = 'error'
+        iq['from'] = self.xmpp.boundjid
+        iq['to'] = to
+        iq['error']['code'] = ecode
+        iq['error']['type'] = etype
+        iq['error']['condition'] = econd
+        return iq.send(
+            timeout=kwargs.get('timeout', None),
+            block=kwargs.get('block', True),
+            callback=kwargs.get('callback', None),
+            timeout_callback=kwargs.get('timeout_callback', None)
+        )
diff --git a/sleekxmpp/plugins/xep_0332/stanza/__init__.py b/sleekxmpp/plugins/xep_0332/stanza/__init__.py
new file mode 100644
index 00000000..eeab3f31
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0332/stanza/__init__.py
@@ -0,0 +1,13 @@
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Implementation of HTTP over XMPP transport
+    http://xmpp.org/extensions/xep-0332.html
+    Copyright (C) 2015 Riptide IO, sangeeth@riptideio.com
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+
+from sleekxmpp.plugins.xep_0332.stanza.request import Request
+from sleekxmpp.plugins.xep_0332.stanza.response import Response
+from sleekxmpp.plugins.xep_0332.stanza.data import Data
diff --git a/sleekxmpp/plugins/xep_0332/stanza/data.py b/sleekxmpp/plugins/xep_0332/stanza/data.py
new file mode 100644
index 00000000..9a08426b
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0332/stanza/data.py
@@ -0,0 +1,30 @@
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Implementation of HTTP over XMPP transport
+    http://xmpp.org/extensions/xep-0332.html
+    Copyright (C) 2015 Riptide IO, sangeeth@riptideio.com
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+
+from sleekxmpp.xmlstream import ElementBase
+
+
+class Data(ElementBase):
+    """
+    The data element.
+    """
+    name = 'data'
+    namespace = 'urn:xmpp:http'
+    interfaces = set(['data'])
+    plugin_attrib = 'data'
+    is_extension = True
+
+    def get_data(self, encoding='text'):
+        data = self._get_sub_text(encoding, None)
+        return str(data) if data is not None else data
+
+    def set_data(self, data, encoding='text'):
+        self._set_sub_text(encoding, text=data)
+
diff --git a/sleekxmpp/plugins/xep_0332/stanza/request.py b/sleekxmpp/plugins/xep_0332/stanza/request.py
new file mode 100644
index 00000000..07618727
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0332/stanza/request.py
@@ -0,0 +1,65 @@
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Implementation of HTTP over XMPP transport
+    http://xmpp.org/extensions/xep-0332.html
+    Copyright (C) 2015 Riptide IO, sangeeth@riptideio.com
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+
+from sleekxmpp.xmlstream import ElementBase
+
+
+class Request(ElementBase):
+
+    """
+    All HTTP communication is done using the `Request`/`Response` paradigm.
+    Each HTTP Request is made sending an `iq` stanza containing a `req` element
+    to the server. Each `iq` stanza sent is of type `set`.
+
+    Examples:
+    <iq type='set' from='a@b.com/browser' to='x@y.com' id='1'>
+        <req xmlns='urn:xmpp:http' method='GET' resource='/api/users' version='1.1'>
+            <headers xmlns='http://jabber.org/protocol/shim'>
+                <header name='Host'>b.com</header>
+            </headers>
+        </req>
+    </iq>
+
+    <iq type='set' from='a@b.com/browser' to='x@y.com' id='2'>
+        <req xmlns='urn:xmpp:http' method='PUT' resource='/api/users' version='1.1'>
+            <headers xmlns='http://jabber.org/protocol/shim'>
+                <header name='Host'>b.com</header>
+                <header name='Content-Type'>text/html</header>
+                <header name='Content-Length'>...</header>
+            </headers>
+            <data>
+                <text>...</text>
+            </data>
+        </req>
+    </iq>
+    """
+
+    name = 'request'
+    namespace = 'urn:xmpp:http'
+    interfaces = set(['method', 'resource', 'version'])
+    plugin_attrib = 'req'
+
+    def get_method(self):
+        return self._get_attr('method', None)
+
+    def set_method(self, method):
+        self._set_attr('method', method)
+
+    def get_resource(self):
+        return self._get_attr('resource', None)
+
+    def set_resource(self, resource):
+        self._set_attr('resource', resource)
+
+    def get_version(self):
+        return self._get_attr('version', None)
+
+    def set_version(self, version='1.1'):
+        self._set_attr('version', version)
diff --git a/sleekxmpp/plugins/xep_0332/stanza/response.py b/sleekxmpp/plugins/xep_0332/stanza/response.py
new file mode 100644
index 00000000..0fc46de8
--- /dev/null
+++ b/sleekxmpp/plugins/xep_0332/stanza/response.py
@@ -0,0 +1,61 @@
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Implementation of HTTP over XMPP transport
+    http://xmpp.org/extensions/xep-0332.html
+    Copyright (C) 2015 Riptide IO, sangeeth@riptideio.com
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+
+from sleekxmpp.xmlstream import ElementBase
+
+
+class Response(ElementBase):
+
+    """
+    When the HTTP Server responds, it does so by sending an `iq` stanza
+    response (type=`result`) back to the client containing the `resp` element.
+    Since response are asynchronous, and since multiple requests may be active
+    at the same time, responses may be returned in a different order than the
+    in which the original requests were made.
+
+    Examples:
+    <iq type='result' from='httpserver@clayster.com' to='httpclient@clayster.com/browser' id='2'>
+        <resp xmlns='urn:xmpp:http' version='1.1' statusCode='200' statusMessage='OK'>
+            <headers xmlns='http://jabber.org/protocol/shim'>
+                <header name='Date'>Fri, 03 May 2013 16:39:54GMT-4</header>
+                <header name='Server'>Clayster</header>
+                <header name='Content-Type'>text/turtle</header>
+                <header name='Content-Length'>...</header>
+                <header name='Connection'>Close</header>
+            </headers>
+            <data>
+                <text>
+                    ...
+                </text>
+            </data>
+        </resp>
+    </iq>
+    """
+
+    name = 'response'
+    namespace = 'urn:xmpp:http'
+    interfaces = set(['code', 'message', 'version'])
+    plugin_attrib = 'resp'
+
+    def get_code(self):
+        code = self._get_attr('statusCode', None)
+        return int(code) if code is not None else code
+
+    def set_code(self, code):
+        self._set_attr('statusCode', str(code))
+
+    def get_message(self):
+        return self._get_attr('statusMessage', '')
+
+    def set_message(self, message):
+        self._set_attr('statusMessage', message)
+
+    def set_version(self, version='1.1'):
+        self._set_attr('version', version)