From 66500ef5fb6793aabae57d9738dde28a475a7518 Mon Sep 17 00:00:00 2001
From: Emmanuel Gil Peyrot <linkmauve@linkmauve.fr>
Date: Thu, 8 Mar 2018 03:38:59 +0100
Subject: [PATCH] Add an HTTP File Upload plugin.

---
 slixmpp/plugins/xep_0363/__init__.py    | 14 +++++
 slixmpp/plugins/xep_0363/http_upload.py | 77 +++++++++++++++++++++++++
 slixmpp/plugins/xep_0363/stanza.py      | 38 ++++++++++++
 3 files changed, 129 insertions(+)
 create mode 100644 slixmpp/plugins/xep_0363/__init__.py
 create mode 100644 slixmpp/plugins/xep_0363/http_upload.py
 create mode 100644 slixmpp/plugins/xep_0363/stanza.py

diff --git a/slixmpp/plugins/xep_0363/__init__.py b/slixmpp/plugins/xep_0363/__init__.py
new file mode 100644
index 00000000..d40bee4e
--- /dev/null
+++ b/slixmpp/plugins/xep_0363/__init__.py
@@ -0,0 +1,14 @@
+"""
+    slixmpp: The Slick XMPP Library
+    Copyright (C) 2018 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_0363.stanza import Request, Slot, Put, Get, Header
+from slixmpp.plugins.xep_0363.http_upload import XEP_0363
+
+register_plugin(XEP_0363)
diff --git a/slixmpp/plugins/xep_0363/http_upload.py b/slixmpp/plugins/xep_0363/http_upload.py
new file mode 100644
index 00000000..3026a8c9
--- /dev/null
+++ b/slixmpp/plugins/xep_0363/http_upload.py
@@ -0,0 +1,77 @@
+"""
+    slixmpp: The Slick XMPP Library
+    Copyright (C) 2018 Emmanuel Gil Peyrot
+    This file is part of slixmpp.
+
+    See the file LICENSE for copying permission.
+"""
+
+import asyncio
+import logging
+
+from slixmpp import Iq
+from slixmpp.plugins import BasePlugin
+from slixmpp.xmlstream import register_stanza_plugin
+from slixmpp.xmlstream.handler import Callback
+from slixmpp.xmlstream.matcher import StanzaPath
+from slixmpp.plugins.xep_0363 import stanza, Request, Slot, Put, Get, Header
+
+log = logging.getLogger(__name__)
+
+class XEP_0363(BasePlugin):
+
+    name = 'xep_0363'
+    description = 'XEP-0363: HTTP File Upload'
+    dependencies = {'xep_0030'}
+    stanza = stanza
+
+    def plugin_init(self):
+        register_stanza_plugin(Iq, Request)
+        register_stanza_plugin(Iq, Slot)
+        register_stanza_plugin(Slot, Put)
+        register_stanza_plugin(Slot, Get)
+        register_stanza_plugin(Put, Header)
+
+        self.xmpp.register_handler(
+                Callback('HTTP Upload Request',
+                         StanzaPath('iq@type=get/http_upload_request'),
+                         self._handle_request))
+
+    def plugin_end(self):
+        self.xmpp.remove_handler('HTTP Upload Request')
+        self.xmpp.remove_handler('HTTP Upload Slot')
+        self.xmpp['xep_0030'].del_feature(feature=Request.namespace)
+
+    def session_bind(self, jid):
+        self.xmpp.plugin['xep_0030'].add_feature(Request.namespace)
+
+    def _handle_request(self, iq):
+        self.xmpp.event('http_upload_request', iq)
+
+    @asyncio.coroutine
+    def find_upload_service(self, ifrom=None, timeout=None, callback=None,
+                            timeout_callback=None):
+        infos = [self.xmpp['xep_0030'].get_info(self.xmpp.boundjid.domain)]
+        iq_items = yield from self.xmpp['xep_0030'].get_items(
+                self.xmpp.boundjid.domain, timeout=timeout)
+        items = iq_items['disco_items']['items']
+        infos += [self.xmpp['xep_0030'].get_info(item[0]) for item in items]
+        info_futures, _ = yield from asyncio.wait(infos, timeout=timeout)
+        for future in info_futures:
+            info = future.result()
+            for identity in info['disco_info']['identities']:
+                if identity[0] == 'store' and identity[1] == 'file':
+                    return info
+
+    def request_slot(self, jid, filename, size, content_type=None, ifrom=None,
+                     timeout=None, callback=None, timeout_callback=None):
+        iq = self.xmpp.Iq()
+        iq['to'] = jid
+        iq['from'] = ifrom
+        iq['type'] = 'get'
+        request = iq['http_upload_request']
+        request['filename'] = filename
+        request['size'] = str(size)
+        request['content-type'] = content_type
+        return iq.send(timeout=timeout, callback=callback,
+                       timeout_callback=timeout_callback)
diff --git a/slixmpp/plugins/xep_0363/stanza.py b/slixmpp/plugins/xep_0363/stanza.py
new file mode 100644
index 00000000..4795f96d
--- /dev/null
+++ b/slixmpp/plugins/xep_0363/stanza.py
@@ -0,0 +1,38 @@
+"""
+    slixmpp: The Slick XMPP Library
+    Copyright (C) 2018 Emmanuel Gil Peyrot
+    This file is part of slixmpp.
+
+    See the file LICENSE for copying permission.
+"""
+
+from slixmpp.xmlstream import ElementBase
+
+class Request(ElementBase):
+    plugin_attrib = 'http_upload_request'
+    name = 'request'
+    namespace = 'urn:xmpp:http:upload:0'
+    interfaces = {'filename', 'size', 'content-type'}
+
+class Slot(ElementBase):
+    plugin_attrib = 'http_upload_slot'
+    name = 'slot'
+    namespace = 'urn:xmpp:http:upload:0'
+
+class Put(ElementBase):
+    plugin_attrib = 'put'
+    name = 'put'
+    namespace = 'urn:xmpp:http:upload:0'
+    interfaces = {'url'}
+
+class Get(ElementBase):
+    plugin_attrib = 'get'
+    name = 'get'
+    namespace = 'urn:xmpp:http:upload:0'
+    interfaces = {'url'}
+
+class Header(ElementBase):
+    plugin_attrib = 'header'
+    name = 'header'
+    namespace = 'urn:xmpp:http:upload:0'
+    interfaces = {'name', 'value'}