X-Git-Url: https://git.mdrn.pl/wolnelektury.git/blobdiff_plain/57e98a5807465f9494e5006e16860f16abbf4136..6280673f35e13e75e81c5b7821bd2a44a1831eab:/apps/ajaxable/utils.py

diff --git a/apps/ajaxable/utils.py b/apps/ajaxable/utils.py
index ac8d5c6f9..89b56228d 100755
--- a/apps/ajaxable/utils.py
+++ b/apps/ajaxable/utils.py
@@ -1,34 +1,28 @@
+# -*- coding: utf-8 -*-
+# This file is part of Wolnelektury, licensed under GNU Affero GPLv3 or later.
+# Copyright © Fundacja Nowoczesna Polska. See NOTICE for more information.
+#
 from functools import wraps
 
 from django.http import (HttpResponse, HttpResponseRedirect,
         HttpResponseForbidden)
 from django.shortcuts import render_to_response
 from django.template import RequestContext
-from django.utils.cache import patch_vary_headers
 from django.utils.encoding import force_unicode
 from django.utils.functional import Promise
 from django.utils.http import urlquote_plus
-from django.utils import simplejson
+import json
 from django.utils.translation import ugettext_lazy as _
 from django.views.decorators.vary import vary_on_headers
+from honeypot.decorators import verify_honeypot_value
 
 
-class LazyEncoder(simplejson.JSONEncoder):
+class LazyEncoder(json.JSONEncoder):
     def default(self, obj):
         if isinstance(obj, Promise):
             return force_unicode(obj)
         return obj
 
-# shortcut for JSON reponses
-class JSONResponse(HttpResponse):
-    def __init__(self, data={}, callback=None, **kwargs):
-        # get rid of mimetype
-        kwargs.pop('mimetype', None)
-        data = simplejson.dumps(data)
-        if callback:
-            data = callback + "(" + data + ");" 
-        super(JSONResponse, self).__init__(data, mimetype="application/json", **kwargs)
-
 
 def method_decorator(function_decorator):
     """Converts a function decorator to a method decorator.
@@ -70,23 +64,29 @@ class AjaxableFormView(object):
     # override to customize form look
     template = "ajaxable/form.html"
     submit = _('Send')
-    
+
     title = ''
     success_message = ''
     POST_login = False
     formname = "form"
     form_prefix = None
     full_template = "ajaxable/form_on_page.html"
+    honeypot = False
 
     @method_decorator(vary_on_headers('X-Requested-With'))
     def __call__(self, request, *args, **kwargs):
         """A view displaying a form, or JSON if request is AJAX."""
-        #form_class = placeholdized(self.form_class) if self.placeholdize else self.form_class
-        form_args, form_kwargs = self.form_args(request, *args, **kwargs)
+        obj = self.get_object(request, *args, **kwargs)
+        form_args, form_kwargs = self.form_args(request, obj)
         if self.form_prefix:
             form_kwargs['prefix'] = self.form_prefix
 
         if request.method == "POST":
+            if self.honeypot:
+                response = verify_honeypot_value(request, None)
+                if response:
+                    return response
+
             # do I need to be logged in?
             if self.POST_login and not request.user.is_authenticated():
                 return require_login(request)
@@ -95,14 +95,16 @@ class AjaxableFormView(object):
             form = self.form_class(*form_args, **form_kwargs)
             if form.is_valid():
                 add_args = self.success(form, request)
-                redirect = request.GET.get('next')
-                if not request.is_ajax() and redirect:
-                    return HttpResponseRedirect(urlquote_plus(
-                            redirect, safe='/?=&'))
-                response_data = {'success': True, 
-                    'message': self.success_message, 'redirect': redirect}
+                response_data = {
+                    'success': True,
+                    'message': self.success_message,
+                    'redirect': request.GET.get('next')
+                    }
                 if add_args:
                     response_data.update(add_args)
+                if not request.is_ajax() and response_data['redirect']:
+                    return HttpResponseRedirect(urlquote_plus(
+                            response_data['redirect'], safe='/?=&'))
             elif request.is_ajax():
                 # Form was sent with errors. Send them back.
                 if self.form_prefix:
@@ -124,12 +126,20 @@ class AjaxableFormView(object):
             form = self.form_class(*form_args, **form_kwargs)
             response_data = None
 
-        template = self.template if request.is_ajax() else self.full_template
+        title = self.title
+        if request.is_ajax():
+            template = self.template
+        else:
+            template = self.full_template
+            cd = self.context_description(request, obj)
+            if cd:
+                title += ": " + cd
         if self.placeholdize:
             form = placeholdized(form)
         context = {
-                self.formname: form, 
-                "title": self.title,
+                self.formname: form,
+                "title": title,
+                "honeypot": self.honeypot,
                 "placeholdize": self.placeholdize,
                 "submit": self.submit,
                 "response_data": response_data,
@@ -137,21 +147,39 @@ class AjaxableFormView(object):
                 "view_args": args,
                 "view_kwargs": kwargs,
             }
-        context.update(self.extra_context())
+        context.update(self.extra_context(request, obj))
         return render_to_response(template, context,
             context_instance=RequestContext(request))
 
-    def form_args(self, request, *args, **kwargs):
+    def redirect_or_refresh(self, request, path, message=None):
+        """If the form is AJAX, refresh the page. If not, go to `path`."""
+        if request.is_ajax():
+            output = "<script>window.location.reload()</script>"
+            if message:
+                output = "<div class='normal-text'>" + message + "</div>" + output
+            return HttpResponse(output)
+        else:
+            return HttpResponseRedirect(path)
+
+    def get_object(self, request, *args, **kwargs):
+        """Override to parse view args and get some associated data."""
+        return None
+
+    def form_args(self, request, obj):
         """Override to parse view args and give additional args to the form."""
         return (), {}
 
-    def extra_context(self):
+    def extra_context(self, request, obj):
         """Override to pass something to template."""
         return {}
 
+    def context_description(self, request, obj):
+        """Description to appear in standalone form, but not in AJAX form."""
+        return ""
+
     def success(self, form, request):
         """What to do when the form is valid.
-        
+
         By default, just save the form.
 
         """