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import hashlib
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import string
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from django.core import serializers
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from django.core.urlresolvers import reverse
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from django.http import HttpResponseRedirect
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from django.http.response import HttpResponse
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from django.template import RequestContext
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from django.shortcuts import render, redirect, get_object_or_404
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from django.utils import timezone
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from django.db import transaction
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from boards import forms
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import boards
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from boards import utils
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from boards.forms import ThreadForm, PostForm, SettingsForm, PlainErrorList, \
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ThreadCaptchaForm, PostCaptchaForm, LoginForm, ModeratorSettingsForm
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from boards.models import Post, Tag, Ban, User, RANK_USER, SETTING_MODERATE, \
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REGEX_REPLY
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from boards import authors
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from boards.utils import get_client_ip
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import neboard
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import re
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def index(request, page=0):
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context = _init_default_context(request)
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if utils.need_include_captcha(request):
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threadFormClass = ThreadCaptchaForm
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kwargs = {'request': request}
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else:
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threadFormClass = ThreadForm
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kwargs = {}
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if request.method == 'POST':
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form = threadFormClass(request.POST, request.FILES,
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error_class=PlainErrorList, **kwargs)
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form.session = request.session
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if form.is_valid():
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return _new_post(request, form)
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if form.need_to_ban:
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# Ban user because he is suspected to be a bot
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_ban_current_user(request)
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else:
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form = threadFormClass(error_class=PlainErrorList, **kwargs)
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threads = []
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for thread in Post.objects.get_threads(page=int(page)):
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threads.append({
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'thread': thread,
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'bumpable': thread.can_bump(),
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'last_replies': thread.get_last_replies(),
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})
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context['threads'] = None if len(threads) == 0 else threads
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context['form'] = form
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context['pages'] = range(Post.objects.get_thread_page_count())
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return render(request, 'boards/posting_general.html',
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context)
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@transaction.commit_on_success
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def _new_post(request, form, thread_id=boards.models.NO_PARENT):
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"""Add a new post (in thread or as a reply)."""
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ip = get_client_ip(request)
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is_banned = Ban.objects.filter(ip=ip).exists()
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if is_banned:
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return redirect(you_are_banned)
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data = form.cleaned_data
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title = data['title']
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text = data['text']
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text = _remove_invalid_links(text)
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if 'image' in data.keys():
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image = data['image']
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else:
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image = None
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tags = []
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new_thread = thread_id == boards.models.NO_PARENT
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if new_thread:
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tag_strings = data['tags']
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if tag_strings:
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tag_strings = tag_strings.split(' ')
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for tag_name in tag_strings:
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tag_name = string.lower(tag_name.strip())
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if len(tag_name) > 0:
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tag, created = Tag.objects.get_or_create(name=tag_name)
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tags.append(tag)
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linked_tags = tag.get_linked_tags()
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if len(linked_tags) > 0:
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tags.extend(linked_tags)
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op = None if thread_id == boards.models.NO_PARENT else \
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get_object_or_404(Post, id=thread_id)
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post = Post.objects.create_post(title=title, text=text, ip=ip,
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thread=op, image=image,
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tags=tags, user=_get_user(request))
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thread_to_show = (post.id if new_thread else thread_id)
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if new_thread:
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return redirect(thread, post_id=thread_to_show)
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else:
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return redirect(reverse(thread, kwargs={'post_id': thread_to_show}) +
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'#' + str(post.id))
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def tag(request, tag_name, page=0):
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"""
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Get all tag threads. Threads are split in pages, so some page is
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requested. Default page is 0.
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"""
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tag = get_object_or_404(Tag, name=tag_name)
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threads = []
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for thread in Post.objects.get_threads(tag=tag, page=int(page)):
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threads.append({
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'thread': thread,
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'bumpable': thread.can_bump(),
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'last_replies': thread.get_last_replies(),
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})
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if request.method == 'POST':
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form = ThreadForm(request.POST, request.FILES,
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error_class=PlainErrorList)
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form.session = request.session
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if form.is_valid():
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return _new_post(request, form)
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if form.need_to_ban:
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# Ban user because he is suspected to be a bot
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_ban_current_user(request)
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else:
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form = forms.ThreadForm(initial={'tags': tag_name},
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error_class=PlainErrorList)
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context = _init_default_context(request)
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context['threads'] = None if len(threads) == 0 else threads
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context['tag'] = tag
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context['pages'] = range(Post.objects.get_thread_page_count(tag=tag))
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context['form'] = form
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return render(request, 'boards/posting_general.html',
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context)
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def thread(request, post_id):
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"""Get all thread posts"""
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if utils.need_include_captcha(request):
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postFormClass = PostCaptchaForm
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kwargs = {'request': request}
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else:
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postFormClass = PostForm
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kwargs = {}
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if request.method == 'POST':
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form = postFormClass(request.POST, request.FILES,
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error_class=PlainErrorList, **kwargs)
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form.session = request.session
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if form.is_valid():
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return _new_post(request, form, post_id)
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if form.need_to_ban:
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# Ban user because he is suspected to be a bot
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_ban_current_user(request)
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else:
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form = postFormClass(error_class=PlainErrorList, **kwargs)
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posts = Post.objects.get_thread(post_id)
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context = _init_default_context(request)
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context['posts'] = posts
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context['form'] = form
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context['bumpable'] = posts[0].can_bump()
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if context['bumpable']:
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context['posts_left'] = neboard.settings.MAX_POSTS_PER_THREAD - len(
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posts)
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context['bumplimit_progress'] = str(
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float(context['posts_left']) /
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neboard.settings.MAX_POSTS_PER_THREAD * 100)
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return render(request, 'boards/thread.html', context)
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def login(request):
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"""Log in with user id"""
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context = _init_default_context(request)
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if request.method == 'POST':
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form = LoginForm(request.POST, request.FILES,
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error_class=PlainErrorList)
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form.session = request.session
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if form.is_valid():
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user = User.objects.get(user_id=form.cleaned_data['user_id'])
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request.session['user_id'] = user.id
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return redirect(index)
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else:
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form = LoginForm()
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context['form'] = form
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return render(request, 'boards/login.html', context)
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def settings(request):
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"""User's settings"""
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context = _init_default_context(request)
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user = _get_user(request)
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is_moderator = user.is_moderator()
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if request.method == 'POST':
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with transaction.commit_on_success():
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if is_moderator:
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form = ModeratorSettingsForm(request.POST,
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error_class=PlainErrorList)
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else:
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form = SettingsForm(request.POST, error_class=PlainErrorList)
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if form.is_valid():
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selected_theme = form.cleaned_data['theme']
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user.save_setting('theme', selected_theme)
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if is_moderator:
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moderate = form.cleaned_data['moderate']
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user.save_setting(SETTING_MODERATE, moderate)
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return redirect(settings)
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else:
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selected_theme = _get_theme(request)
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if is_moderator:
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form = ModeratorSettingsForm(initial={'theme': selected_theme,
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'moderate': context['moderator']},
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error_class=PlainErrorList)
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else:
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form = SettingsForm(initial={'theme': selected_theme},
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error_class=PlainErrorList)
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context['form'] = form
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return render(request, 'boards/settings.html', context)
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def all_tags(request):
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"""All tags list"""
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context = _init_default_context(request)
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context['all_tags'] = Tag.objects.get_not_empty_tags()
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return render(request, 'boards/tags.html', context)
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def jump_to_post(request, post_id):
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"""Determine thread in which the requested post is and open it's page"""
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post = get_object_or_404(Post, id=post_id)
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if not post.thread:
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return redirect(thread, post_id=post.id)
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else:
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return redirect(reverse(thread, kwargs={'post_id': post.thread.id})
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+ '#' + str(post.id))
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def authors(request):
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"""Show authors list"""
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context = _init_default_context(request)
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context['authors'] = boards.authors.authors
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return render(request, 'boards/authors.html', context)
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@transaction.commit_on_success
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def delete(request, post_id):
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"""Delete post"""
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user = _get_user(request)
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post = get_object_or_404(Post, id=post_id)
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if user.is_moderator():
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# TODO Show confirmation page before deletion
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Post.objects.delete_post(post)
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if not post.thread:
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return _redirect_to_next(request)
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else:
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return redirect(thread, post_id=post.thread.id)
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@transaction.commit_on_success
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def ban(request, post_id):
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"""Ban user"""
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user = _get_user(request)
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post = get_object_or_404(Post, id=post_id)
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if user.is_moderator():
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# TODO Show confirmation page before ban
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Ban.objects.get_or_create(ip=post.poster_ip)
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return _redirect_to_next(request)
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def you_are_banned(request):
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"""Show the page that notifies that user is banned"""
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context = _init_default_context(request)
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return render(request, 'boards/staticpages/banned.html', context)
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def page_404(request):
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"""Show page 404 (not found error)"""
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context = _init_default_context(request)
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return render(request, 'boards/404.html', context)
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@transaction.commit_on_success
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def tag_subscribe(request, tag_name):
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"""Add tag to favorites"""
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user = _get_user(request)
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tag = get_object_or_404(Tag, name=tag_name)
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if not tag in user.fav_tags.all():
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user.add_tag(tag)
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return _redirect_to_next(request)
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@transaction.commit_on_success
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def tag_unsubscribe(request, tag_name):
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"""Remove tag from favorites"""
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user = _get_user(request)
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tag = get_object_or_404(Tag, name=tag_name)
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if tag in user.fav_tags.all():
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user.remove_tag(tag)
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return _redirect_to_next(request)
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def static_page(request, name):
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"""Show a static page that needs only tags list and a CSS"""
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context = _init_default_context(request)
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return render(request, 'boards/staticpages/' + name + '.html', context)
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def api_get_post(request, post_id):
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"""
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Get the JSON of a post. This can be
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used as and API for external clients.
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"""
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post = get_object_or_404(Post, id=post_id)
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json = serializers.serialize("json", [post], fields=(
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"pub_time", "_text_rendered", "title", "text", "image",
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"image_width", "image_height", "replies", "tags"
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))
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return HttpResponse(content=json)
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def get_post(request, post_id):
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"""Get the html of a post. Used for popups."""
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post = get_object_or_404(Post, id=post_id)
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context = RequestContext(request)
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context["post"] = post
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return render(request, 'boards/post.html', context)
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def _get_theme(request, user=None):
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"""Get user's CSS theme"""
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if not user:
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user = _get_user(request)
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theme = user.get_setting('theme')
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if not theme:
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theme = neboard.settings.DEFAULT_THEME
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return theme
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def _init_default_context(request):
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"""Create context with default values that are used in most views"""
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context = RequestContext(request)
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user = _get_user(request)
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context['user'] = user
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context['tags'] = user.get_sorted_fav_tags()
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theme = _get_theme(request, user)
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context['theme'] = theme
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context['theme_css'] = 'css/' + theme + '/base_page.css'
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# This shows the moderator panel
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moderate = user.get_setting(SETTING_MODERATE)
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if moderate == 'True':
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context['moderator'] = user.is_moderator()
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else:
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context['moderator'] = False
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return context
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def _get_user(request):
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"""
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Get current user from the session. If the user does not exist, create
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a new one.
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"""
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session = request.session
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if not 'user_id' in session:
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request.session.save()
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md5 = hashlib.md5()
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md5.update(session.session_key)
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new_id = md5.hexdigest()
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time_now = timezone.now()
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user = User.objects.create(user_id=new_id, rank=RANK_USER,
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registration_time=time_now)
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session['user_id'] = user.id
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else:
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user = User.objects.get(id=session['user_id'])
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return user
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def _redirect_to_next(request):
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"""
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If a 'next' parameter was specified, redirect to the next page. This is
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used when the user is required to return to some page after the current
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view has finished its work.
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"""
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if 'next' in request.GET:
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next_page = request.GET['next']
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return HttpResponseRedirect(next_page)
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else:
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return redirect(index)
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def _ban_current_user(request):
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"""Add current user to the IP ban list"""
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ip = utils.get_client_ip(request)
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Ban.objects.get_or_create(ip=ip)
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def _remove_invalid_links(text):
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"""
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Replace invalid links in posts so that they won't be parsed.
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Invalid links are links to non-existent posts
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"""
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for reply_number in re.finditer(REGEX_REPLY, text):
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post_id = reply_number.group(1)
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post = Post.objects.filter(id=post_id)
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if not post.exists():
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text = string.replace(text, '>>' + id, id)
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return text
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