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import logging
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from datetime import datetime, timedelta, date
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from datetime import time as dtime
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from django.db import models, transaction
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from django.utils import timezone
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import boards
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from boards.models.user import Ban
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from boards.mdx_neboard import Parser
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from boards.models import PostImage, Attachment
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from boards import utils
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__author__ = 'neko259'
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IMAGE_TYPES = (
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'jpeg',
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'jpg',
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'png',
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'bmp',
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'gif',
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)
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POSTS_PER_DAY_RANGE = 7
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NO_IP = '0.0.0.0'
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class PostManager(models.Manager):
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@transaction.atomic
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def create_post(self, title: str, text: str, file=None, thread=None,
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ip=NO_IP, tags: list=None, opening_posts: list=None,
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tripcode='', monochrome=False):
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"""
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Creates new post
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"""
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if thread is not None and thread.is_archived():
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raise Exception('Cannot post into an archived thread')
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if not utils.is_anonymous_mode():
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is_banned = Ban.objects.filter(ip=ip).exists()
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else:
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is_banned = False
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# TODO Raise specific exception and catch it in the views
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if is_banned:
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raise Exception("This user is banned")
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if not tags:
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tags = []
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if not opening_posts:
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opening_posts = []
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posting_time = timezone.now()
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new_thread = False
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if not thread:
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thread = boards.models.thread.Thread.objects.create(
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bump_time=posting_time, last_edit_time=posting_time,
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monochrome=monochrome)
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list(map(thread.tags.add, tags))
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boards.models.thread.Thread.objects.process_oldest_threads()
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new_thread = True
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pre_text = Parser().preparse(text)
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post = self.create(title=title,
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text=pre_text,
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pub_time=posting_time,
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poster_ip=ip,
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thread=thread,
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last_edit_time=posting_time,
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tripcode=tripcode,
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opening=new_thread)
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post.threads.add(thread)
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logger = logging.getLogger('boards.post.create')
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logger.info('Created post [{}] with text [{}] by {}'.format(post,
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post.get_text(),post.poster_ip))
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# TODO Move this to other place
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if file:
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file_type = file.name.split('.')[-1].lower()
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if file_type in IMAGE_TYPES:
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post.images.add(PostImage.objects.create_with_hash(file))
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else:
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post.attachments.add(Attachment.objects.create_with_hash(file))
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post.connect_threads(opening_posts)
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# Thread needs to be bumped only when the post is already created
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if not new_thread:
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thread.last_edit_time = posting_time
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thread.bump()
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thread.save()
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return post
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def delete_posts_by_ip(self, ip):
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"""
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Deletes all posts of the author with same IP
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"""
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posts = self.filter(poster_ip=ip)
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for post in posts:
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post.delete()
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@utils.cached_result()
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def get_posts_per_day(self) -> float:
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"""
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Gets average count of posts per day for the last 7 days
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"""
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day_end = date.today()
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day_start = day_end - timedelta(POSTS_PER_DAY_RANGE)
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day_time_start = timezone.make_aware(datetime.combine(
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day_start, dtime()), timezone.get_current_timezone())
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day_time_end = timezone.make_aware(datetime.combine(
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day_end, dtime()), timezone.get_current_timezone())
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posts_per_period = float(self.filter(
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pub_time__lte=day_time_end,
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pub_time__gte=day_time_start).count())
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ppd = posts_per_period / POSTS_PER_DAY_RANGE
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return ppd
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