Issue 2234 - Add a WSGI controller to collect email addresses for the Adblock Browser iOS launch

sitescripts/web.py

Index: sitescripts/web.py
===================================================================
--- a/sitescripts/web.py
+++ b/sitescripts/web.py
@@ -19,6 +19,8 @@
 import imp
 import importlib
 import re
+from urlparse import parse_qsl
+
 from sitescripts.utils import get_config
 
 handlers = {}
@@ -59,6 +61,35 @@
                  [("WWW-Authenticate", 'Basic realm="%s"' % realm)])
   return ""
 

[kzar, 2015/04/05 15:45:14]

These additions are cool, perhaps we should even open a new ticket to remove the
random definitions of the `show_error` fn scattered about and replace their
usage with `sitescripts.web.send_status_response`?

[Sebastian Noack, 2015/04/05 17:07:01]

Yes, feel free to do so. ;)

Note that there is already an issue to ue the form_handler decorator
consistently: https://issues.adblockplus.org/ticket/2267

+def send_status_response(status, start_response):
+  start_response(status, [('Content-Type', 'text/plain')])
+  return [status]
+
+def form_handler(func):
+  def wrapper(environ, start_response):
+    if environ['REQUEST_METHOD'] != 'POST':
+      return send_status_response('405 Method Not Allowed', start_response)
+
+    if not environ.get('CONTENT_TYPE', '').startswith('application/x-www-form-urlencoded'):
+      return send_status_response('415 Unsupported Media Type', start_response)
+
+    try:
+      content_length = int(environ['CONTENT_LENGTH'])
+    except (KeyError, ValueError):
+      content_length = None
+    if content_length is None or content_length < 0:
+      return send_status_response('411 Length Required', start_response)
+
+    raw_data = parse_qsl(environ['wsgi.input'].read(content_length))
+    try:
+      data = {k.decode('utf-8'): v.decode('utf-8') for k, v in raw_data}
+    except UnicodeDecodeError:
+      return send_status_response('400 Invalid character in form data', start_response)
+
+    return func(environ, start_response, data)
+
+  return wrapper
+
 def multiplex(environ, start_response):
   try:
     path = environ["PATH_INFO"]