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@@ -1,441 +1,441 b'' | |||
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1 | 1 | from datetime import datetime, timedelta, date |
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2 | 2 | from datetime import time as dtime |
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3 | 3 | import logging |
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4 | 4 | import re |
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5 | 5 | |
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6 | 6 | from adjacent import Client |
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7 | 7 | from django.core.cache import cache |
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8 | 8 | from django.core.urlresolvers import reverse |
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9 | 9 | from django.db import models, transaction |
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10 | 10 | from django.db.models import TextField |
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11 | 11 | from django.template.loader import render_to_string |
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12 | 12 | from django.utils import timezone |
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13 | 13 | |
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14 | 14 | from boards import settings |
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15 | 15 | from boards.mdx_neboard import bbcode_extended |
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16 | 16 | from boards.models import PostImage |
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17 | 17 | from boards.models.base import Viewable |
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18 | 18 | from boards.models.thread import Thread |
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19 | 19 | from boards.utils import datetime_to_epoch |
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20 | 20 | |
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21 | 21 | |
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22 | 22 | WS_NOTIFICATION_TYPE_NEW_POST = 'new_post' |
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23 | 23 | WS_NOTIFICATION_TYPE = 'notification_type' |
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24 | 24 | |
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25 | 25 | WS_CHANNEL_THREAD = "thread:" |
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26 | 26 | |
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27 | 27 | APP_LABEL_BOARDS = 'boards' |
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28 | 28 | |
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29 | 29 | CACHE_KEY_PPD = 'ppd' |
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30 | 30 | CACHE_KEY_POST_URL = 'post_url' |
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31 | 31 | |
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32 | 32 | POSTS_PER_DAY_RANGE = 7 |
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33 | 33 | |
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34 | 34 | BAN_REASON_AUTO = 'Auto' |
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35 | 35 | |
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36 | 36 | IMAGE_THUMB_SIZE = (200, 150) |
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37 | 37 | |
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38 | 38 | TITLE_MAX_LENGTH = 200 |
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39 | 39 | |
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40 | 40 | # TODO This should be removed |
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41 | 41 | NO_IP = '0.0.0.0' |
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42 | 42 | |
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43 | 43 | # TODO Real user agent should be saved instead of this |
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44 | 44 | UNKNOWN_UA = '' |
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45 | 45 | |
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46 | 46 | REGEX_REPLY = re.compile(r'\[post\](\d+)\[/post\]') |
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47 | 47 | |
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48 | 48 | PARAMETER_TRUNCATED = 'truncated' |
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49 | 49 | PARAMETER_TAG = 'tag' |
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50 | 50 | PARAMETER_OFFSET = 'offset' |
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51 | 51 | PARAMETER_DIFF_TYPE = 'type' |
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52 | 52 | PARAMETER_BUMPABLE = 'bumpable' |
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53 | 53 | PARAMETER_THREAD = 'thread' |
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54 | 54 | PARAMETER_IS_OPENING = 'is_opening' |
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55 | 55 | PARAMETER_MODERATOR = 'moderator' |
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56 | 56 | PARAMETER_POST = 'post' |
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57 | 57 | PARAMETER_OP_ID = 'opening_post_id' |
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58 | 58 | PARAMETER_NEED_OPEN_LINK = 'need_open_link' |
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59 | 59 | |
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60 | 60 | DIFF_TYPE_HTML = 'html' |
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61 | 61 | DIFF_TYPE_JSON = 'json' |
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62 | 62 | |
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63 | 63 | PREPARSE_PATTERNS = { |
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64 | 64 | r'>>(\d+)': r'[post]\1[/post]', # Reflink ">>123" |
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65 | r'^>(.+)': r'[quote]\1[/quote]', # Quote ">text" | |
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65 | r'^(?<!>)>(.+)': r'[quote]\1[/quote]', # Quote ">text" | |
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66 | 66 | r'^//(.+)': r'[comment]\1[/comment]', # Comment "//text" |
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67 | 67 | } |
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68 | 68 | |
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69 | 69 | |
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70 | 70 | class PostManager(models.Manager): |
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71 | 71 | @transaction.atomic |
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72 | 72 | def create_post(self, title: str, text: str, image=None, thread=None, |
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73 | 73 | ip=NO_IP, tags: list=None): |
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74 | 74 | """ |
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75 | 75 | Creates new post |
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76 | 76 | """ |
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77 | 77 | |
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78 | 78 | if not tags: |
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79 | 79 | tags = [] |
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80 | 80 | |
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81 | 81 | posting_time = timezone.now() |
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82 | 82 | if not thread: |
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83 | 83 | thread = Thread.objects.create(bump_time=posting_time, |
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84 | 84 | last_edit_time=posting_time) |
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85 | 85 | new_thread = True |
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86 | 86 | else: |
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87 | 87 | new_thread = False |
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88 | 88 | |
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89 | 89 | pre_text = self._preparse_text(text) |
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90 | 90 | |
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91 | 91 | post = self.create(title=title, |
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92 | 92 | text=pre_text, |
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93 | 93 | pub_time=posting_time, |
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94 | 94 | thread_new=thread, |
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95 | 95 | poster_ip=ip, |
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96 | 96 | poster_user_agent=UNKNOWN_UA, # TODO Get UA at |
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97 | 97 | # last! |
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98 | 98 | last_edit_time=posting_time) |
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99 | 99 | |
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100 | 100 | logger = logging.getLogger('boards.post.create') |
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101 | 101 | |
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102 | 102 | logger.info('Created post {} by {}'.format( |
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103 | 103 | post, post.poster_ip)) |
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104 | 104 | |
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105 | 105 | if image: |
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106 | 106 | post_image = PostImage.objects.create(image=image) |
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107 | 107 | post.images.add(post_image) |
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108 | 108 | logger.info('Created image #{} for post #{}'.format( |
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109 | 109 | post_image.id, post.id)) |
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110 | 110 | |
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111 | 111 | thread.replies.add(post) |
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112 | 112 | list(map(thread.add_tag, tags)) |
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113 | 113 | |
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114 | 114 | if new_thread: |
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115 | 115 | Thread.objects.process_oldest_threads() |
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116 | 116 | else: |
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117 | 117 | thread.bump() |
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118 | 118 | thread.last_edit_time = posting_time |
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119 | 119 | thread.save() |
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120 | 120 | |
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121 | 121 | self.connect_replies(post) |
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122 | 122 | |
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123 | 123 | return post |
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124 | 124 | |
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125 | 125 | def delete_posts_by_ip(self, ip): |
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126 | 126 | """ |
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127 | 127 | Deletes all posts of the author with same IP |
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128 | 128 | """ |
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129 | 129 | |
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130 | 130 | posts = self.filter(poster_ip=ip) |
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131 | 131 | for post in posts: |
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132 | 132 | post.delete() |
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133 | 133 | |
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134 | 134 | def connect_replies(self, post): |
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135 | 135 | """ |
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136 | 136 | Connects replies to a post to show them as a reflink map |
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137 | 137 | """ |
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138 | 138 | |
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139 | 139 | for reply_number in re.finditer(REGEX_REPLY, post.get_raw_text()): |
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140 | 140 | post_id = reply_number.group(1) |
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141 | 141 | ref_post = self.filter(id=post_id) |
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142 | 142 | if ref_post.count() > 0: |
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143 | 143 | referenced_post = ref_post[0] |
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144 | 144 | referenced_post.referenced_posts.add(post) |
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145 | 145 | referenced_post.last_edit_time = post.pub_time |
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146 | 146 | referenced_post.build_refmap() |
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147 | 147 | referenced_post.save(update_fields=['refmap', 'last_edit_time']) |
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148 | 148 | |
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149 | 149 | referenced_thread = referenced_post.get_thread() |
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150 | 150 | referenced_thread.last_edit_time = post.pub_time |
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151 | 151 | referenced_thread.save(update_fields=['last_edit_time']) |
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152 | 152 | |
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153 | 153 | def get_posts_per_day(self): |
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154 | 154 | """ |
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155 | 155 | Gets average count of posts per day for the last 7 days |
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156 | 156 | """ |
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157 | 157 | |
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158 | 158 | day_end = date.today() |
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159 | 159 | day_start = day_end - timedelta(POSTS_PER_DAY_RANGE) |
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160 | 160 | |
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161 | 161 | cache_key = CACHE_KEY_PPD + str(day_end) |
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162 | 162 | ppd = cache.get(cache_key) |
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163 | 163 | if ppd: |
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164 | 164 | return ppd |
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165 | 165 | |
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166 | 166 | day_time_start = timezone.make_aware(datetime.combine( |
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167 | 167 | day_start, dtime()), timezone.get_current_timezone()) |
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168 | 168 | day_time_end = timezone.make_aware(datetime.combine( |
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169 | 169 | day_end, dtime()), timezone.get_current_timezone()) |
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170 | 170 | |
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171 | 171 | posts_per_period = float(self.filter( |
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172 | 172 | pub_time__lte=day_time_end, |
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173 | 173 | pub_time__gte=day_time_start).count()) |
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174 | 174 | |
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175 | 175 | ppd = posts_per_period / POSTS_PER_DAY_RANGE |
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176 | 176 | |
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177 | 177 | cache.set(cache_key, ppd) |
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178 | 178 | return ppd |
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179 | 179 | |
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180 | 180 | def _preparse_text(self, text): |
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181 | 181 | """ |
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182 | 182 | Preparses text to change patterns like '>>' to a proper bbcode |
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183 | 183 | tags. |
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184 | 184 | """ |
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185 | 185 | |
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186 | 186 | for key, value in PREPARSE_PATTERNS.items(): |
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187 | 187 | text = re.sub(key, value, text, flags=re.MULTILINE) |
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188 | 188 | |
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189 | 189 | return text |
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190 | 190 | |
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191 | 191 | |
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192 | 192 | class Post(models.Model, Viewable): |
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193 | 193 | """A post is a message.""" |
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194 | 194 | |
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195 | 195 | objects = PostManager() |
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196 | 196 | |
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197 | 197 | class Meta: |
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198 | 198 | app_label = APP_LABEL_BOARDS |
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199 | 199 | ordering = ('id',) |
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200 | 200 | |
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201 | 201 | title = models.CharField(max_length=TITLE_MAX_LENGTH) |
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202 | 202 | pub_time = models.DateTimeField() |
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203 | 203 | text = TextField(blank=True, null=True) |
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204 | 204 | _text_rendered = TextField(blank=True, null=True, editable=False) |
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205 | 205 | |
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206 | 206 | images = models.ManyToManyField(PostImage, null=True, blank=True, |
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207 | 207 | related_name='ip+', db_index=True) |
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208 | 208 | |
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209 | 209 | poster_ip = models.GenericIPAddressField() |
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210 | 210 | poster_user_agent = models.TextField() |
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211 | 211 | |
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212 | 212 | thread_new = models.ForeignKey('Thread', null=True, default=None, |
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213 | 213 | db_index=True) |
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214 | 214 | last_edit_time = models.DateTimeField() |
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215 | 215 | |
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216 | 216 | referenced_posts = models.ManyToManyField('Post', symmetrical=False, |
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217 | 217 | null=True, |
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218 | 218 | blank=True, related_name='rfp+', |
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219 | 219 | db_index=True) |
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220 | 220 | refmap = models.TextField(null=True, blank=True) |
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221 | 221 | |
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222 | 222 | def __str__(self): |
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223 | 223 | return 'P#{}/{}'.format(self.id, self.title) |
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224 | 224 | |
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225 | 225 | def get_title(self) -> str: |
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226 | 226 | """ |
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227 | 227 | Gets original post title or part of its text. |
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228 | 228 | """ |
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229 | 229 | |
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230 | 230 | title = self.title |
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231 | 231 | if not title: |
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232 | 232 | title = self.get_text() |
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233 | 233 | |
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234 | 234 | return title |
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235 | 235 | |
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236 | 236 | def build_refmap(self) -> None: |
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237 | 237 | """ |
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238 | 238 | Builds a replies map string from replies list. This is a cache to stop |
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239 | 239 | the server from recalculating the map on every post show. |
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240 | 240 | """ |
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241 | 241 | map_string = '' |
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242 | 242 | |
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243 | 243 | first = True |
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244 | 244 | for refpost in self.referenced_posts.all(): |
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245 | 245 | if not first: |
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246 | 246 | map_string += ', ' |
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247 | 247 | map_string += '<a href="%s">>>%s</a>' % (refpost.get_url(), |
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248 | 248 | refpost.id) |
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249 | 249 | first = False |
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250 | 250 | |
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251 | 251 | self.refmap = map_string |
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252 | 252 | |
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253 | 253 | def get_sorted_referenced_posts(self): |
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254 | 254 | return self.refmap |
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255 | 255 | |
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256 | 256 | def is_referenced(self) -> bool: |
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257 | 257 | if not self.refmap: |
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258 | 258 | return False |
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259 | 259 | else: |
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260 | 260 | return len(self.refmap) > 0 |
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261 | 261 | |
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262 | 262 | def is_opening(self) -> bool: |
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263 | 263 | """ |
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264 | 264 | Checks if this is an opening post or just a reply. |
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265 | 265 | """ |
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266 | 266 | |
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267 | 267 | return self.get_thread().get_opening_post_id() == self.id |
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268 | 268 | |
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269 | 269 | @transaction.atomic |
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270 | 270 | def add_tag(self, tag): |
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271 | 271 | edit_time = timezone.now() |
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272 | 272 | |
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273 | 273 | thread = self.get_thread() |
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274 | 274 | thread.add_tag(tag) |
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275 | 275 | self.last_edit_time = edit_time |
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276 | 276 | self.save(update_fields=['last_edit_time']) |
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277 | 277 | |
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278 | 278 | thread.last_edit_time = edit_time |
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279 | 279 | thread.save(update_fields=['last_edit_time']) |
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280 | 280 | |
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281 | 281 | def get_url(self, thread=None): |
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282 | 282 | """ |
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283 | 283 | Gets full url to the post. |
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284 | 284 | """ |
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285 | 285 | |
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286 | 286 | cache_key = CACHE_KEY_POST_URL + str(self.id) |
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287 | 287 | link = cache.get(cache_key) |
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288 | 288 | |
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289 | 289 | if not link: |
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290 | 290 | if not thread: |
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291 | 291 | thread = self.get_thread() |
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292 | 292 | |
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293 | 293 | opening_id = thread.get_opening_post_id() |
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294 | 294 | |
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295 | 295 | if self.id != opening_id: |
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296 | 296 | link = reverse('thread', kwargs={ |
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297 | 297 | 'post_id': opening_id}) + '#' + str(self.id) |
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298 | 298 | else: |
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299 | 299 | link = reverse('thread', kwargs={'post_id': self.id}) |
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300 | 300 | |
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301 | 301 | cache.set(cache_key, link) |
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302 | 302 | |
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303 | 303 | return link |
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304 | 304 | |
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305 | 305 | def get_thread(self) -> Thread: |
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306 | 306 | """ |
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307 | 307 | Gets post's thread. |
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308 | 308 | """ |
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309 | 309 | |
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310 | 310 | return self.thread_new |
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311 | 311 | |
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312 | 312 | def get_referenced_posts(self): |
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313 | 313 | return self.referenced_posts.only('id', 'thread_new') |
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314 | 314 | |
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315 | 315 | def get_view(self, moderator=False, need_open_link=False, |
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316 | 316 | truncated=False, *args, **kwargs): |
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317 | 317 | """ |
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318 | 318 | Renders post's HTML view. Some of the post params can be passed over |
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319 | 319 | kwargs for the means of caching (if we view the thread, some params |
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320 | 320 | are same for every post and don't need to be computed over and over. |
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321 | 321 | """ |
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322 | 322 | |
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323 | 323 | is_opening = kwargs.get(PARAMETER_IS_OPENING, self.is_opening()) |
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324 | 324 | thread = kwargs.get(PARAMETER_THREAD, self.get_thread()) |
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325 | 325 | can_bump = kwargs.get(PARAMETER_BUMPABLE, thread.can_bump()) |
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326 | 326 | |
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327 | 327 | if is_opening: |
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328 | 328 | opening_post_id = self.id |
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329 | 329 | else: |
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330 | 330 | opening_post_id = thread.get_opening_post_id() |
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331 | 331 | |
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332 | 332 | return render_to_string('boards/post.html', { |
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333 | 333 | PARAMETER_POST: self, |
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334 | 334 | PARAMETER_MODERATOR: moderator, |
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335 | 335 | PARAMETER_IS_OPENING: is_opening, |
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336 | 336 | PARAMETER_THREAD: thread, |
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337 | 337 | PARAMETER_BUMPABLE: can_bump, |
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338 | 338 | PARAMETER_NEED_OPEN_LINK: need_open_link, |
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339 | 339 | PARAMETER_TRUNCATED: truncated, |
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340 | 340 | PARAMETER_OP_ID: opening_post_id, |
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341 | 341 | }) |
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342 | 342 | |
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343 | 343 | def get_search_view(self, *args, **kwargs): |
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344 | 344 | return self.get_view(args, kwargs) |
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345 | 345 | |
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346 | 346 | def get_first_image(self) -> PostImage: |
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347 | 347 | return self.images.earliest('id') |
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348 | 348 | |
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349 | 349 | def delete(self, using=None): |
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350 | 350 | """ |
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351 | 351 | Deletes all post images and the post itself. If the post is opening, |
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352 | 352 | thread with all posts is deleted. |
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353 | 353 | """ |
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354 | 354 | |
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355 | 355 | self.images.all().delete() |
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356 | 356 | |
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357 | 357 | if self.is_opening(): |
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358 | 358 | self.get_thread().delete() |
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359 | 359 | else: |
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360 | 360 | thread = self.get_thread() |
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361 | 361 | thread.last_edit_time = timezone.now() |
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362 | 362 | thread.save() |
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363 | 363 | |
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364 | 364 | super(Post, self).delete(using) |
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365 | 365 | |
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366 | 366 | logging.getLogger('boards.post.delete').info( |
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367 | 367 | 'Deleted post {}'.format(self)) |
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368 | 368 | |
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369 | 369 | def get_post_data(self, format_type=DIFF_TYPE_JSON, request=None, |
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370 | 370 | include_last_update=False): |
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371 | 371 | """ |
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372 | 372 | Gets post HTML or JSON data that can be rendered on a page or used by |
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373 | 373 | API. |
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374 | 374 | """ |
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375 | 375 | |
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376 | 376 | if format_type == DIFF_TYPE_HTML: |
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377 | 377 | params = dict() |
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378 | 378 | params['post'] = self |
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379 | 379 | if PARAMETER_TRUNCATED in request.GET: |
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380 | 380 | params[PARAMETER_TRUNCATED] = True |
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381 | 381 | |
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382 | 382 | return render_to_string('boards/api_post.html', params) |
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383 | 383 | elif format_type == DIFF_TYPE_JSON: |
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384 | 384 | post_json = { |
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385 | 385 | 'id': self.id, |
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386 | 386 | 'title': self.title, |
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387 | 387 | 'text': self._text_rendered, |
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388 | 388 | } |
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389 | 389 | if self.images.exists(): |
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390 | 390 | post_image = self.get_first_image() |
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391 | 391 | post_json['image'] = post_image.image.url |
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392 | 392 | post_json['image_preview'] = post_image.image.url_200x150 |
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393 | 393 | if include_last_update: |
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394 | 394 | post_json['bump_time'] = datetime_to_epoch( |
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395 | 395 | self.thread_new.bump_time) |
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396 | 396 | return post_json |
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397 | 397 | |
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398 | 398 | def send_to_websocket(self, request, recursive=True): |
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399 | 399 | """ |
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400 | 400 | Sends post HTML data to the thread web socket. |
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401 | 401 | """ |
|
402 | 402 | |
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403 | 403 | if not settings.WEBSOCKETS_ENABLED: |
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404 | 404 | return |
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405 | 405 | |
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406 | 406 | client = Client() |
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407 | 407 | |
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408 | 408 | thread = self.get_thread() |
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409 | 409 | thread_id = thread.id |
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410 | 410 | channel_name = WS_CHANNEL_THREAD + str(thread.get_opening_post_id()) |
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411 | 411 | client.publish(channel_name, { |
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412 | 412 | WS_NOTIFICATION_TYPE: WS_NOTIFICATION_TYPE_NEW_POST, |
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413 | 413 | }) |
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414 | 414 | client.send() |
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415 | 415 | |
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416 | 416 | logger = logging.getLogger('boards.post.websocket') |
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417 | 417 | |
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418 | 418 | logger.info('Sent notification from post #{} to channel {}'.format( |
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419 | 419 | self.id, channel_name)) |
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420 | 420 | |
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421 | 421 | if recursive: |
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422 | 422 | for reply_number in re.finditer(REGEX_REPLY, self.get_raw_text()): |
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423 | 423 | post_id = reply_number.group(1) |
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424 | 424 | ref_post = Post.objects.filter(id=post_id)[0] |
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425 | 425 | |
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426 | 426 | # If post is in this thread, its thread was already notified. |
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427 | 427 | # Otherwise, notify its thread separately. |
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428 | 428 | if ref_post.thread_new_id != thread_id: |
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429 | 429 | ref_post.send_to_websocket(request, recursive=False) |
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430 | 430 | |
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431 | 431 | def save(self, force_insert=False, force_update=False, using=None, |
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432 | 432 | update_fields=None): |
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433 | 433 | self._text_rendered = bbcode_extended(self.get_raw_text()) |
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434 | 434 | |
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435 | 435 | super().save(force_insert, force_update, using, update_fields) |
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436 | 436 | |
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437 | 437 | def get_text(self) -> str: |
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438 | 438 | return self._text_rendered |
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439 | 439 | |
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440 | 440 | def get_raw_text(self) -> str: |
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441 | 441 | return self.text |
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