Implemented posting delay. User must wait some time before posting (a measure against flood).

boards/forms.py

@@ -2,10 +2,16 b' import re'
 from captcha.fields import CaptchaField
 from django import forms
 from django.forms.util import ErrorList
+from django.utils import timezone
+import time
+import math
 from boards.models import TITLE_MAX_LENGTH, User
 from neboard import settings
 from boards import utils
 
+LAST_POST_TIME = "last_post_time"
+
+
 class PlainErrorList(ErrorList):
     def __unicode__(self):
         return self.as_text()
@@ -23,6 +29,8 b' class PostForm(forms.Form):'
     text = forms.CharField(widget=forms.Textarea, required=False)
     image = forms.ImageField(required=False)
 
+    session = None
+
     def clean_title(self):
         title = self.cleaned_data['title']
         if title:
@@ -56,6 +64,9 b' class PostForm(forms.Form):'
         if not self.errors:
             self._clean_text_image()
 
+        if not self.errors and self.session:
+            self._validate_posting_speed()
+
         return cleaned_data
 
     def _clean_text_image(self):
@@ -65,7 +76,26 b' class PostForm(forms.Form):'
         if (not text) and (not image):
             error_message = 'Either text or image must be entered.'
             self._errors['text'] = self.error_class([error_message])
-            self._errors['image'] = self.error_class([error_message])
+
+    def _validate_posting_speed(self):
+        can_post = True
+
+        if LAST_POST_TIME in self.session:
+            now = time.time()
+            last_post_time = self.session[LAST_POST_TIME]
+
+            current_delay = int(now - last_post_time)
+
+            if current_delay < settings.POSTING_DELAY:
+                error_message = 'Wait ' + str(settings.POSTING_DELAY -
+                                              current_delay)\
+                                + ' seconds after last posting'
+                self._errors['text'] = self.error_class([error_message])
+
+                can_post = False
+
+        if can_post:
+            self.session[LAST_POST_TIME] = time.time()
 
 
 class ThreadForm(PostForm):

boards/templates/boards/posting_general.html

@@ -144,6 +144,9 b''
                 {{ form.captcha }}
                 <div class="form-errors">{{ form.captcha.errors }}</div>
             </div>
+            <div class="form-row">
+                <div class="form-errors">{{ form.other.errors }}</div>
+            </div>
         </div>
         <div class="form-submit">
             <input type="submit" value="{% trans "Post" %}"/></div>

boards/templates/boards/thread.html

@@ -90,6 +90,9 b''
                     {{ form.captcha }}
                     <div class="form-errors">{{ form.captcha.errors }}</div>
                 </div>
+                <div class="form-row">
+                    <div class="form-errors">{{ form.other.errors }}</div>
+                </div>
             </div>
 
             <div class="form-submit"><input type="submit"

boards/views.py

@@ -28,6 +28,7 b' def index(request, page=0):'
     if request.method == 'POST':
         form = threadFormClass(request.POST, request.FILES,
                                error_class=PlainErrorList, **kwargs)
+        form.session = request.session
 
         if form.is_valid():
             return _new_post(request, form)
@@ -133,6 +134,8 b' def thread(request, post_id):'
     if request.method == 'POST':
         form = postFormClass(request.POST, request.FILES,
                              error_class=PlainErrorList, **kwargs)
+        form.session = request.session
+
         if form.is_valid():
             return _new_post(request, form, post_id)
     else:

neboard/settings.py

@@ -199,3 +199,4 b' LAST_REPLIES_COUNT = 3'
 ENABLE_CAPTCHA = False
 # if user tries to post before CAPTCHA_DEFAULT_SAFE_TIME. Captcha will be shown
 CAPTCHA_DEFAULT_SAFE_TIME = 30  # seconds
+POSTING_DELAY = 20 # seconds
  No newline at end of file