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-rw-r--r--synapse/rest/client/v2_alpha/sync.py20
-rw-r--r--synapse/rest/media/v1/base_resource.py85
-rw-r--r--synapse/rest/media/v1/download_resource.py12
-rw-r--r--synapse/rest/media/v1/identicon_resource.py14
-rw-r--r--synapse/rest/media/v1/thumbnail_resource.py16
-rw-r--r--synapse/rest/media/v1/upload_resource.py85
6 files changed, 91 insertions, 141 deletions
diff --git a/synapse/rest/client/v2_alpha/sync.py b/synapse/rest/client/v2_alpha/sync.py
index 3056ec45cf..f2fd0b9f32 100644
--- a/synapse/rest/client/v2_alpha/sync.py
+++ b/synapse/rest/client/v2_alpha/sync.py
@@ -15,7 +15,9 @@
 
 from twisted.internet import defer
 
-from synapse.http.servlet import RestServlet
+from synapse.http.servlet import (
+    RestServlet, parse_string, parse_integer, parse_boolean
+)
 from synapse.handlers.sync import SyncConfig
 from synapse.types import StreamToken
 from synapse.events.utils import (
@@ -87,20 +89,20 @@ class SyncRestServlet(RestServlet):
     def on_GET(self, request):
         user, client = yield self.auth.get_user_by_req(request)
 
-        timeout = self.parse_integer(request, "timeout", default=0)
-        limit = self.parse_integer(request, "limit", required=True)
-        gap = self.parse_boolean(request, "gap", default=True)
-        sort = self.parse_string(
+        timeout = parse_integer(request, "timeout", default=0)
+        limit = parse_integer(request, "limit", required=True)
+        gap = parse_boolean(request, "gap", default=True)
+        sort = parse_string(
             request, "sort", default="timeline,asc",
             allowed_values=self.ALLOWED_SORT
         )
-        since = self.parse_string(request, "since")
-        set_presence = self.parse_string(
+        since = parse_string(request, "since")
+        set_presence = parse_string(
             request, "set_presence", default="online",
             allowed_values=self.ALLOWED_PRESENCE
         )
-        backfill = self.parse_boolean(request, "backfill", default=False)
-        filter_id = self.parse_string(request, "filter", default=None)
+        backfill = parse_boolean(request, "backfill", default=False)
+        filter_id = parse_string(request, "filter", default=None)
 
         logger.info(
             "/sync: user=%r, timeout=%r, limit=%r, gap=%r, sort=%r, since=%r,"
diff --git a/synapse/rest/media/v1/base_resource.py b/synapse/rest/media/v1/base_resource.py
index b10cbddb81..08c8d75af4 100644
--- a/synapse/rest/media/v1/base_resource.py
+++ b/synapse/rest/media/v1/base_resource.py
@@ -18,13 +18,15 @@ from .thumbnailer import Thumbnailer
 from synapse.http.server import respond_with_json
 from synapse.util.stringutils import random_string
 from synapse.api.errors import (
-    cs_exception, CodeMessageException, cs_error, Codes, SynapseError
+    cs_error, Codes, SynapseError
 )
 
 from twisted.internet import defer
 from twisted.web.resource import Resource
 from twisted.protocols.basic import FileSender
 
+from synapse.util.async import create_observer
+
 import os
 
 import logging
@@ -32,6 +34,18 @@ import logging
 logger = logging.getLogger(__name__)
 
 
+def parse_media_id(request):
+    try:
+        server_name, media_id = request.postpath
+        return (server_name, media_id)
+    except:
+        raise SynapseError(
+            404,
+            "Invalid media id token %r" % (request.postpath,),
+            Codes.UNKNOWN,
+        )
+
+
 class BaseMediaResource(Resource):
     isLeaf = True
 
@@ -45,74 +59,9 @@ class BaseMediaResource(Resource):
         self.max_upload_size = hs.config.max_upload_size
         self.max_image_pixels = hs.config.max_image_pixels
         self.filepaths = filepaths
+        self.version_string = hs.version_string
         self.downloads = {}
 
-    @staticmethod
-    def catch_errors(request_handler):
-        @defer.inlineCallbacks
-        def wrapped_request_handler(self, request):
-            try:
-                yield request_handler(self, request)
-            except CodeMessageException as e:
-                logger.info("Responding with error: %r", e)
-                respond_with_json(
-                    request, e.code, cs_exception(e), send_cors=True
-                )
-            except:
-                logger.exception(
-                    "Failed handle request %s.%s on %r",
-                    request_handler.__module__,
-                    request_handler.__name__,
-                    self,
-                )
-                respond_with_json(
-                    request,
-                    500,
-                    {"error": "Internal server error"},
-                    send_cors=True
-                )
-        return wrapped_request_handler
-
-    @staticmethod
-    def _parse_media_id(request):
-        try:
-            server_name, media_id = request.postpath
-            return (server_name, media_id)
-        except:
-            raise SynapseError(
-                404,
-                "Invalid media id token %r" % (request.postpath,),
-                Codes.UNKNOWN,
-            )
-
-    @staticmethod
-    def _parse_integer(request, arg_name, default=None):
-        try:
-            if default is None:
-                return int(request.args[arg_name][0])
-            else:
-                return int(request.args.get(arg_name, [default])[0])
-        except:
-            raise SynapseError(
-                400,
-                "Missing integer argument %r" % (arg_name,),
-                Codes.UNKNOWN,
-            )
-
-    @staticmethod
-    def _parse_string(request, arg_name, default=None):
-        try:
-            if default is None:
-                return request.args[arg_name][0]
-            else:
-                return request.args.get(arg_name, [default])[0]
-        except:
-            raise SynapseError(
-                400,
-                "Missing string argument %r" % (arg_name,),
-                Codes.UNKNOWN,
-            )
-
     def _respond_404(self, request):
         respond_with_json(
             request, 404,
@@ -140,7 +89,7 @@ class BaseMediaResource(Resource):
             def callback(media_info):
                 del self.downloads[key]
                 return media_info
-        return download
+        return create_observer(download)
 
     @defer.inlineCallbacks
     def _get_remote_media_impl(self, server_name, media_id):
diff --git a/synapse/rest/media/v1/download_resource.py b/synapse/rest/media/v1/download_resource.py
index c585bb11f7..0fe6abf647 100644
--- a/synapse/rest/media/v1/download_resource.py
+++ b/synapse/rest/media/v1/download_resource.py
@@ -13,7 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from .base_resource import BaseMediaResource
+from .base_resource import BaseMediaResource, parse_media_id
+from synapse.http.server import request_handler
 
 from twisted.web.server import NOT_DONE_YET
 from twisted.internet import defer
@@ -28,15 +29,10 @@ class DownloadResource(BaseMediaResource):
         self._async_render_GET(request)
         return NOT_DONE_YET
 
-    @BaseMediaResource.catch_errors
+    @request_handler
     @defer.inlineCallbacks
     def _async_render_GET(self, request):
-        try:
-            server_name, media_id = request.postpath
-        except:
-            self._respond_404(request)
-            return
-
+        server_name, media_id = parse_media_id(request)
         if server_name == self.server_name:
             yield self._respond_local_file(request, media_id)
         else:
diff --git a/synapse/rest/media/v1/identicon_resource.py b/synapse/rest/media/v1/identicon_resource.py
index 912856386a..603859d5d4 100644
--- a/synapse/rest/media/v1/identicon_resource.py
+++ b/synapse/rest/media/v1/identicon_resource.py
@@ -1,3 +1,17 @@
+# Copyright 2015 OpenMarket Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 from pydenticon import Generator
 from twisted.web.resource import Resource
 
diff --git a/synapse/rest/media/v1/thumbnail_resource.py b/synapse/rest/media/v1/thumbnail_resource.py
index 84f5e3463c..1dadd880b2 100644
--- a/synapse/rest/media/v1/thumbnail_resource.py
+++ b/synapse/rest/media/v1/thumbnail_resource.py
@@ -14,7 +14,9 @@
 # limitations under the License.
 
 
-from .base_resource import BaseMediaResource
+from .base_resource import BaseMediaResource, parse_media_id
+from synapse.http.servlet import parse_string, parse_integer
+from synapse.http.server import request_handler
 
 from twisted.web.server import NOT_DONE_YET
 from twisted.internet import defer
@@ -31,14 +33,14 @@ class ThumbnailResource(BaseMediaResource):
         self._async_render_GET(request)
         return NOT_DONE_YET
 
-    @BaseMediaResource.catch_errors
+    @request_handler
     @defer.inlineCallbacks
     def _async_render_GET(self, request):
-        server_name, media_id = self._parse_media_id(request)
-        width = self._parse_integer(request, "width")
-        height = self._parse_integer(request, "height")
-        method = self._parse_string(request, "method", "scale")
-        m_type = self._parse_string(request, "type", "image/png")
+        server_name, media_id = parse_media_id(request)
+        width = parse_integer(request, "width")
+        height = parse_integer(request, "height")
+        method = parse_string(request, "method", "scale")
+        m_type = parse_string(request, "type", "image/png")
 
         if server_name == self.server_name:
             yield self._respond_local_thumbnail(
diff --git a/synapse/rest/media/v1/upload_resource.py b/synapse/rest/media/v1/upload_resource.py
index e5aba3af4c..cc571976a5 100644
--- a/synapse/rest/media/v1/upload_resource.py
+++ b/synapse/rest/media/v1/upload_resource.py
@@ -13,12 +13,10 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
-from synapse.http.server import respond_with_json
+from synapse.http.server import respond_with_json, request_handler
 
 from synapse.util.stringutils import random_string
-from synapse.api.errors import (
-    cs_exception, SynapseError, CodeMessageException
-)
+from synapse.api.errors import SynapseError
 
 from twisted.web.server import NOT_DONE_YET
 from twisted.internet import defer
@@ -69,53 +67,42 @@ class UploadResource(BaseMediaResource):
 
         defer.returnValue("mxc://%s/%s" % (self.server_name, media_id))
 
+    @request_handler
     @defer.inlineCallbacks
     def _async_render_POST(self, request):
-        try:
-            auth_user, client = yield self.auth.get_user_by_req(request)
-            # TODO: The checks here are a bit late. The content will have
-            # already been uploaded to a tmp file at this point
-            content_length = request.getHeader("Content-Length")
-            if content_length is None:
-                raise SynapseError(
-                    msg="Request must specify a Content-Length", code=400
-                )
-            if int(content_length) > self.max_upload_size:
-                raise SynapseError(
-                    msg="Upload request body is too large",
-                    code=413,
-                )
-
-            headers = request.requestHeaders
-
-            if headers.hasHeader("Content-Type"):
-                media_type = headers.getRawHeaders("Content-Type")[0]
-            else:
-                raise SynapseError(
-                    msg="Upload request missing 'Content-Type'",
-                    code=400,
-                )
-
-            # if headers.hasHeader("Content-Disposition"):
-            #     disposition = headers.getRawHeaders("Content-Disposition")[0]
-            # TODO(markjh): parse content-dispostion
-
-            content_uri = yield self.create_content(
-                media_type, None, request.content.read(),
-                content_length, auth_user
+        auth_user, client = yield self.auth.get_user_by_req(request)
+        # TODO: The checks here are a bit late. The content will have
+        # already been uploaded to a tmp file at this point
+        content_length = request.getHeader("Content-Length")
+        if content_length is None:
+            raise SynapseError(
+                msg="Request must specify a Content-Length", code=400
             )
-
-            respond_with_json(
-                request, 200, {"content_uri": content_uri}, send_cors=True
+        if int(content_length) > self.max_upload_size:
+            raise SynapseError(
+                msg="Upload request body is too large",
+                code=413,
             )
-        except CodeMessageException as e:
-            logger.exception(e)
-            respond_with_json(request, e.code, cs_exception(e), send_cors=True)
-        except:
-            logger.exception("Failed to store file")
-            respond_with_json(
-                request,
-                500,
-                {"error": "Internal server error"},
-                send_cors=True
+
+        headers = request.requestHeaders
+
+        if headers.hasHeader("Content-Type"):
+            media_type = headers.getRawHeaders("Content-Type")[0]
+        else:
+            raise SynapseError(
+                msg="Upload request missing 'Content-Type'",
+                code=400,
             )
+
+        # if headers.hasHeader("Content-Disposition"):
+        #     disposition = headers.getRawHeaders("Content-Disposition")[0]
+        # TODO(markjh): parse content-dispostion
+
+        content_uri = yield self.create_content(
+            media_type, None, request.content.read(),
+            content_length, auth_user
+        )
+
+        respond_with_json(
+            request, 200, {"content_uri": content_uri}, send_cors=True
+        )