--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/web/lib/django/views/csrf.py Wed Jun 02 18:57:35 2010 +0200
@@ -0,0 +1,89 @@
+from django.http import HttpResponseForbidden
+from django.template import Context, Template
+from django.conf import settings
+
+# We include the template inline since we need to be able to reliably display
+# this error message, especially for the sake of developers, and there isn't any
+# other way of making it available independent of what is in the settings file.
+
+CSRF_FAILRE_TEMPLATE = """
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
+<html lang="en">
+<head>
+ <meta http-equiv="content-type" content="text/html; charset=utf-8">
+ <meta name="robots" content="NONE,NOARCHIVE">
+ <title>403 Forbidden</title>
+ <style type="text/css">
+ html * { padding:0; margin:0; }
+ body * { padding:10px 20px; }
+ body * * { padding:0; }
+ body { font:small sans-serif; background:#eee; }
+ body>div { border-bottom:1px solid #ddd; }
+ h1 { font-weight:normal; margin-bottom:.4em; }
+ h1 span { font-size:60%; color:#666; font-weight:normal; }
+ #info { background:#f6f6f6; }
+ #info ul { margin: 0.5em 4em; }
+ #info p { padding-top:10px; }
+ #summary { background: #ffc; }
+ #explanation { background:#eee; border-bottom: 0px none; }
+ </style>
+</head>
+<body>
+<div id="summary">
+ <h1>Forbidden <span>(403)</span></h1>
+ <p>CSRF verification failed. Request aborted.</p>
+</div>
+{% if DEBUG %}
+<div id="info">
+ <h2>Help</h2>
+ {% if reason %}
+ <p>Reason given for failure:</p>
+ <pre>
+ {{ reason }}
+ </pre>
+ {% endif %}
+
+ <p>In general, this can occur when there is a genuine Cross Site Request Forgery, or when
+ <a
+ href='http://docs.djangoproject.com/en/dev/ref/contrib/csrf/#ref-contrib-csrf'>Django's
+ CSRF mechanism</a> has not been used correctly. For POST forms, you need to
+ ensure:</p>
+
+ <ul>
+ <li>The view function uses <a
+ href='http://docs.djangoproject.com/en/dev/ref/templates/api/#subclassing-context-requestcontext'><code>RequestContext</code></a>
+ for the template, instead of <code>Context</code>.</li>
+
+ <li>In the template, there is a <code>{% templatetag openblock %} csrf_token
+ {% templatetag closeblock %}</code> template tag inside each POST form that
+ targets an internal URL.</li>
+
+ <li>If you are not using <code>CsrfViewMiddleware</code>, then you must use
+ <code>csrf_protect</code> on any views that use the <code>csrf_token</code>
+ template tag, as well as those that accept the POST data.</li>
+
+ </ul>
+
+ <p>You're seeing the help section of this page because you have <code>DEBUG =
+ True</code> in your Django settings file. Change that to <code>False</code>,
+ and only the initial error message will be displayed. </p>
+
+ <p>You can customize this page using the CSRF_FAILURE_VIEW setting.</p>
+</div>
+{% else %}
+<div id="explanation">
+ <p><small>More information is available with DEBUG=True.</small></p>
+</div>
+{% endif %}
+</body>
+</html>
+"""
+
+def csrf_failure(request, reason=""):
+ """
+ Default view used when request fails CSRF protection
+ """
+ t = Template(CSRF_FAILRE_TEMPLATE)
+ c = Context({'DEBUG': settings.DEBUG,
+ 'reason': reason})
+ return HttpResponseForbidden(t.render(c), mimetype='text/html')