From 9642fd129db8526c4e39d31cb6ad1cc84e59d010 Mon Sep 17 00:00:00 2001
From: lian <imwhatiam123@gmail.com>
Date: Wed, 2 Mar 2016 10:04:59 +0800
Subject: [PATCH 1/2] [api2] add new owa file api

---
 seahub/api2/urls.py  |  1 +
 seahub/api2/views.py | 75 ++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 76 insertions(+)

diff --git a/seahub/api2/urls.py b/seahub/api2/urls.py
index 62be47da33..43e5ac5475 100644
--- a/seahub/api2/urls.py
+++ b/seahub/api2/urls.py
@@ -36,6 +36,7 @@ urlpatterns = patterns('',
     url(r'^repos/(?P<repo_id>[-0-9a-f]{36})/update-link/$', UpdateLinkView.as_view()),
     url(r'^repos/(?P<repo_id>[-0-9a-f]{36})/upload-blks-link/$', UploadBlksLinkView.as_view()),
     url(r'^repos/(?P<repo_id>[-0-9a-f]{36})/update-blks-link/$', UpdateBlksLinkView.as_view()),
+    url(r'^repos/(?P<repo_id>[-0-9-a-f]{36})/owa-file/$', OwaFileView.as_view(), name='api2-owa-file-view'),
     url(r'^repos/(?P<repo_id>[-0-9-a-f]{36})/file/$', FileView.as_view(), name='FileView'),
     url(r'^repos/(?P<repo_id>[-0-9a-f]{36})/files/(?P<file_id>[0-9a-f]{40})/blks/(?P<block_id>[0-9a-f]{40})/download-link/$', FileBlockDownloadLinkView.as_view()),
     url(r'^repos/(?P<repo_id>[-0-9-a-f]{36})/file/detail/$', FileDetailView.as_view()),
diff --git a/seahub/api2/views.py b/seahub/api2/views.py
index c938d933f8..804507f278 100644
--- a/seahub/api2/views.py
+++ b/seahub/api2/views.py
@@ -105,6 +105,16 @@ try:
 except ImportError:
     ORG_MEMBER_QUOTA_DEFAULT = None
 
+try:
+    from seahub.settings import ENABLE_OFFICE_WEB_APP
+except ImportError:
+    ENABLE_OFFICE_WEB_APP = False
+
+try:
+    from seahub.settings import OFFICE_WEB_APP_FILE_EXTENSION
+except ImportError:
+    OFFICE_WEB_APP_FILE_EXTENSION = ()
+
 from pysearpc import SearpcError, SearpcObjEncoder
 import seaserv
 from seaserv import seafserv_rpc, seafserv_threaded_rpc, \
@@ -1643,6 +1653,71 @@ class StarredFileView(APIView):
         unstar_file(request.user.username, repo_id, path)
         return Response('success', status=status.HTTP_200_OK)
 
+class OwaFileView(APIView):
+
+    authentication_classes = (TokenAuthentication, SessionAuthentication)
+    permission_classes = (IsAuthenticated, )
+    throttle_classes = (UserRateThrottle, )
+
+    def get(self, request, repo_id, format=None):
+        """ Get action url and access token when view file through Office Web App
+        """
+
+        # check args
+        repo = get_repo(repo_id)
+        if not repo:
+            error_msg = 'Library %s not found.' % repo_id
+            return api_error(status.HTTP_404_NOT_FOUND, error_msg)
+
+        path = request.GET.get('path', None)
+        if not path:
+            error_msg = 'path invalid.'
+            return api_error(status.HTTP_400_BAD_REQUEST, error_msg)
+
+        try:
+            file_id = seafile_api.get_file_id_by_path(repo_id, path)
+        except SearpcError as e:
+            logger.error(e)
+            error_msg = 'Internal Server Error'
+            return api_error(status.HTTP_500_INTERNAL_SERVER_ERROR, error_msg)
+
+        if not file_id:
+            error_msg = 'File %s not found.' % path
+            return api_error(status.HTTP_404_NOT_FOUND, error_msg)
+
+        # check permission
+        if not is_pro_version():
+            error_msg = 'Office Web App feature only supported in professional edition.'
+            return api_error(status.HTTP_403_FORBIDDEN, error_msg)
+
+        if check_folder_permission(request, repo_id, path) is None:
+            error_msg = 'Permission denied.'
+            return api_error(status.HTTP_403_FORBIDDEN, error_msg)
+
+        if repo.encrypted:
+            error_msg = 'Library encrypted.'
+            return api_error(status.HTTP_403_FORBIDDEN, error_msg)
+
+        if not ENABLE_OFFICE_WEB_APP:
+            error_msg = 'Office Web App feature not enabled.'
+            return api_error(status.HTTP_403_FORBIDDEN, error_msg)
+
+        filename = os.path.basename(path)
+        filetype, fileext = get_file_type_and_ext(filename)
+        if fileext not in OFFICE_WEB_APP_FILE_EXTENSION:
+            error_msg = 'file extension invalid.'
+            return api_error(status.HTTP_400_BAD_REQUEST, error_msg)
+
+        # get wopi dict
+        from seahub_extra.wopi.utils import get_wopi_dict
+        username = request.user.username
+        wopi_dict = get_wopi_dict(username, repo_id, path)
+
+        # send stats message
+        send_file_access_msg(request, repo, path, 'api')
+        return Response(wopi_dict)
+
+
 class FileView(APIView):
     """
     Support uniform interface for file related operations,

From d750019b84e03fc14fcd2b2ff480b6ca9e627c0c Mon Sep 17 00:00:00 2001
From: lian <imwhatiam123@gmail.com>
Date: Wed, 2 Mar 2016 13:39:25 +0800
Subject: [PATCH 2/2] [api2] update err msg of owa api

---
 seahub/api2/views.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/seahub/api2/views.py b/seahub/api2/views.py
index 804507f278..0bed6f83ec 100644
--- a/seahub/api2/views.py
+++ b/seahub/api2/views.py
@@ -1705,7 +1705,7 @@ class OwaFileView(APIView):
         filename = os.path.basename(path)
         filetype, fileext = get_file_type_and_ext(filename)
         if fileext not in OFFICE_WEB_APP_FILE_EXTENSION:
-            error_msg = 'file extension invalid.'
+            error_msg = 'path invalid.'
             return api_error(status.HTTP_400_BAD_REQUEST, error_msg)
 
         # get wopi dict