Only accept wgnames which adhere to the constraints currently practiced. (Before this change, the URL patterns would match wg names containing non-ascii characters, which later would bomb due to mix of collations when accessing the database. Might as well return a 404 at once instead).

 - Legacy-Id: 3018

Author: levkowetz

ietf/wginfo/urls.py

@@ -13,7 +13,7 @@
      (r'^1wg-summary-by-acronym.txt', views.wg_summary_acronym),
      (r'^1wg-charters.txt', views.wg_charters),
      (r'^1wg-charters-by-acronym.txt', views.wg_charters_by_acronym),
-     (r'^(?P<acronym>[^/]+)/documents/txt/$', views.wg_documents_txt),
-     (r'^(?P<acronym>[^/]+)/$', views.wg_documents_html),
-     (r'^(?P<acronym>[^/]+)/charter/$', views.wg_charter),
+     (r'^(?P<acronym>[a-z0-9-]+)/documents/txt/$', views.wg_documents_txt),
+     (r'^(?P<acronym>[a-z0-9-]+)/$', views.wg_documents_html),
+     (r'^(?P<acronym>[a-z0-9-]+)/charter/$', views.wg_charter),
 )