From c45e7004e7c30602d06391a3b09a40a51e10461c Mon Sep 17 00:00:00 2001
From: Aleksey Lim <alsroot@sugarlabs.org>
Date: Mon, 01 Oct 2012 21:13:28 +0000
Subject: Serve Contributor Hub from /hub path for IPC clients to workaround lack of CORS for SSE

---
diff --git a/sugar_network/local/__init__.py b/sugar_network/local/__init__.py
index 2a149ad..c143c60 100644
--- a/sugar_network/local/__init__.py
+++ b/sugar_network/local/__init__.py
@@ -78,6 +78,12 @@ ipc_port = Option(
         'port number to listen for incomming connections from IPC clients',
         default=5001, type_cast=int)
 
+hub_root = Option(
+        'path to Contributor Hub site directory to serve from /hub location '
+        'for IPC clients to workaround lack of CORS for SSE while using Hub '
+        'from file:// url',
+        default='/usr/share/sugar-network/hub')
+
 
 def path(*args):
     """Calculate a path from the root.
diff --git a/sugar_network/local/ipc_client.py b/sugar_network/local/ipc_client.py
index 7c7ae46..dbedf4f 100644
--- a/sugar_network/local/ipc_client.py
+++ b/sugar_network/local/ipc_client.py
@@ -13,10 +13,12 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
+from os.path import join
+
 import active_document as ad
 
 from sugar_network.toolkit import router
-from sugar_network.local import sugar
+from sugar_network.local import sugar, hub_root
 
 
 class Router(router.Router):
@@ -25,5 +27,15 @@ class Router(router.Router):
         return sugar.uid()
 
     def call(self, request, response):
+        if request.environ['PATH_INFO'] == '/hub':
+            raise ad.Redirect('/hub/')
+        if request.path and request.path[0] == 'hub':
+            return self._serve_hub(request.path[1:])
         request.access_level = ad.ACCESS_LOCAL
         return router.Router.call(self, request, response)
+
+    def _serve_hub(self, path):
+        if not path:
+            path = ['index.html']
+        path = join(hub_root.value, *path)
+        return router.stream_reader(file(path, 'rb'))
diff --git a/sugar_network/toolkit/router.py b/sugar_network/toolkit/router.py
index 29c8192..af0979d 100644
--- a/sugar_network/toolkit/router.py
+++ b/sugar_network/toolkit/router.py
@@ -64,6 +64,17 @@ def route(method, path):
     return decorate
 
 
+def stream_reader(stream):
+    try:
+        while True:
+            chunk = stream.read(BUFFER_SIZE)
+            if not chunk:
+                break
+            yield chunk
+    finally:
+        stream.close()
+
+
 class Router(object):
 
     def __init__(self, commands):
@@ -150,7 +161,7 @@ class Router(object):
                 result.seek(0, 2)
                 response.content_length = result.tell()
                 result.seek(0)
-            result = _stream_reader(result)
+            result = stream_reader(result)
 
         return result
 
@@ -303,8 +314,6 @@ class _Request(Request):
             self.if_modified_since = time.mktime(if_modified_since)
 
         scope = len(self.path)
-        enforce(scope >= 0 and scope < 4, BadRequest,
-                'Incorrect requested path')
         if scope == 3:
             self['document'], self['guid'], self['prop'] = self.path
         elif scope == 2:
@@ -391,14 +400,3 @@ def _parse_accept_language(accept_language):
         langs.insert(len(langs) - index, lang)
 
     return langs
-
-
-def _stream_reader(stream):
-    try:
-        while True:
-            chunk = stream.read(BUFFER_SIZE)
-            if not chunk:
-                break
-            yield chunk
-    finally:
-        stream.close()
--
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