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@@ -1,360 +1,364 b'' | |||
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1 | 1 | import uuid |
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2 | 2 | |
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3 | 3 | import hashlib |
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4 | 4 | import re |
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5 | 5 | from django.db import models |
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6 | 6 | from django.db.models import TextField |
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7 | 7 | from django.template.defaultfilters import truncatewords, striptags |
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8 | 8 | from django.template.loader import render_to_string |
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9 | 9 | from django.urls import reverse |
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10 | 10 | |
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11 | 11 | from boards.abstracts.constants import REGEX_REPLY |
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12 | 12 | from boards.abstracts.tripcode import Tripcode |
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13 | 13 | from boards.models import Attachment, KeyPair, GlobalId |
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14 | 14 | from boards.models.attachment import FILE_TYPES_IMAGE |
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15 | 15 | from boards.models.base import Viewable |
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16 | 16 | from boards.models.post.export import get_exporter, DIFF_TYPE_JSON |
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17 | 17 | from boards.models.post.manager import PostManager, NO_IP |
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18 | 18 | from boards.utils import datetime_to_epoch |
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19 | 19 | |
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20 | 20 | CSS_CLS_HIDDEN_POST = 'hidden_post' |
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21 | 21 | CSS_CLS_DEAD_POST = 'dead_post' |
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22 | 22 | CSS_CLS_ARCHIVE_POST = 'archive_post' |
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23 | 23 | CSS_CLS_POST = 'post' |
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24 | 24 | CSS_CLS_MONOCHROME = 'monochrome' |
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25 | 25 | |
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26 | CSS_CLASS_DELIMITER = ' ' | |
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27 | ||
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26 | 28 | TITLE_MAX_WORDS = 10 |
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27 | 29 | |
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28 | 30 | APP_LABEL_BOARDS = 'boards' |
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29 | 31 | |
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30 | 32 | BAN_REASON_AUTO = 'Auto' |
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31 | 33 | |
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32 | 34 | TITLE_MAX_LENGTH = 200 |
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33 | 35 | |
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34 | 36 | REGEX_GLOBAL_REPLY = re.compile(r'\[post\](\w+)::([^:]+)::(\d+)\[/post\]') |
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35 | 37 | REGEX_URL = re.compile(r'https?\://[a-zA-Z0-9\-\.]+\.[a-zA-Z]{2,3}(/\S*)?') |
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36 | 38 | REGEX_NOTIFICATION = re.compile(r'\[user\](\w+)\[/user\]') |
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37 | 39 | |
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38 | 40 | PARAMETER_TRUNCATED = 'truncated' |
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39 | 41 | PARAMETER_TAG = 'tag' |
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40 | 42 | PARAMETER_OFFSET = 'offset' |
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41 | 43 | PARAMETER_DIFF_TYPE = 'type' |
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42 | 44 | PARAMETER_CSS_CLASS = 'css_class' |
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43 | 45 | PARAMETER_THREAD = 'thread' |
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44 | 46 | PARAMETER_IS_OPENING = 'is_opening' |
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45 | 47 | PARAMETER_POST = 'post' |
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46 | 48 | PARAMETER_OP_ID = 'opening_post_id' |
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47 | 49 | PARAMETER_NEED_OPEN_LINK = 'need_open_link' |
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48 | 50 | PARAMETER_REPLY_LINK = 'reply_link' |
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49 | 51 | PARAMETER_NEED_OP_DATA = 'need_op_data' |
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50 | 52 | |
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51 | 53 | POST_VIEW_PARAMS = ( |
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52 | 54 | 'need_op_data', |
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53 | 55 | 'reply_link', |
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54 | 56 | 'need_open_link', |
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55 | 57 | 'truncated', |
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56 | 58 | 'mode_tree', |
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57 | 59 | 'perms', |
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58 | 60 | 'tree_depth', |
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59 | 61 | ) |
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60 | 62 | |
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63 | TEMPLATE_POST = 'boards/post.html' | |
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64 | ||
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61 | 65 | |
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62 | 66 | class Post(models.Model, Viewable): |
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63 | 67 | """A post is a message.""" |
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64 | 68 | |
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65 | 69 | objects = PostManager() |
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66 | 70 | |
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67 | 71 | class Meta: |
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68 | 72 | app_label = APP_LABEL_BOARDS |
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69 | 73 | ordering = ('id',) |
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70 | 74 | |
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71 | 75 | title = models.CharField(max_length=TITLE_MAX_LENGTH, blank=True, default='') |
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72 | 76 | pub_time = models.DateTimeField(db_index=True) |
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73 | 77 | text = TextField(blank=True, default='') |
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74 | 78 | _text_rendered = TextField(blank=True, null=True, editable=False) |
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75 | 79 | |
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76 | 80 | attachments = models.ManyToManyField(Attachment, null=True, blank=True, |
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77 | 81 | related_name='attachment_posts') |
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78 | 82 | |
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79 | 83 | poster_ip = models.GenericIPAddressField() |
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80 | 84 | |
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81 | 85 | # Used for cache and threads updating |
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82 | 86 | last_edit_time = models.DateTimeField() |
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83 | 87 | |
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84 | 88 | referenced_posts = models.ManyToManyField('Post', symmetrical=False, |
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85 | 89 | null=True, |
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86 | 90 | blank=True, related_name='refposts', |
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87 | 91 | db_index=True) |
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88 | 92 | refmap = models.TextField(null=True, blank=True) |
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89 | 93 | thread = models.ForeignKey('Thread', on_delete=models.CASCADE, |
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90 | 94 | db_index=True, related_name='replies') |
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91 | 95 | |
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92 | 96 | url = models.TextField() |
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93 | 97 | uid = models.TextField() |
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94 | 98 | |
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95 | 99 | # Global ID with author key. If the message was downloaded from another |
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96 | 100 | # server, this indicates the server. |
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97 | 101 | global_id = models.OneToOneField(GlobalId, null=True, blank=True, |
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98 | 102 | on_delete=models.CASCADE) |
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99 | 103 | |
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100 | 104 | tripcode = models.CharField(max_length=50, blank=True, default='') |
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101 | 105 | opening = models.BooleanField(db_index=True) |
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102 | 106 | hidden = models.BooleanField(default=False) |
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103 | 107 | |
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104 | 108 | def __str__(self): |
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105 | 109 | return 'P#{}/{}'.format(self.id, self.get_title()) |
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106 | 110 | |
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107 | 111 | def get_title(self) -> str: |
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108 | 112 | return self.title |
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109 | 113 | |
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110 | 114 | def get_title_or_text(self): |
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111 | 115 | title = self.get_title() |
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112 | 116 | if not title: |
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113 | 117 | title = truncatewords(striptags(self.get_text()), TITLE_MAX_WORDS) |
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114 | 118 | |
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115 | 119 | return title |
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116 | 120 | |
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117 | 121 | def build_refmap(self, excluded_ids=None) -> None: |
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118 | 122 | """ |
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119 | 123 | Builds a replies map string from replies list. This is a cache to stop |
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120 | 124 | the server from recalculating the map on every post show. |
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121 | 125 | """ |
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122 | 126 | |
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123 | 127 | replies = self.referenced_posts |
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124 | 128 | if excluded_ids is not None: |
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125 | 129 | replies = replies.exclude(id__in=excluded_ids) |
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126 | 130 | else: |
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127 | 131 | replies = replies.all() |
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128 | 132 | |
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129 | 133 | post_urls = [refpost.get_link_view() for refpost in replies] |
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130 | 134 | |
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131 | 135 | self.refmap = ', '.join(post_urls) |
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132 | 136 | |
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133 | 137 | def is_referenced(self) -> bool: |
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134 | 138 | return self.refmap and len(self.refmap) > 0 |
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135 | 139 | |
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136 | 140 | def is_opening(self) -> bool: |
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137 | 141 | """ |
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138 | 142 | Checks if this is an opening post or just a reply. |
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139 | 143 | """ |
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140 | 144 | |
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141 | 145 | return self.opening |
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142 | 146 | |
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143 | 147 | def get_absolute_url(self, thread=None): |
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144 | 148 | # Url is cached only for the "main" thread. When getting url |
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145 | 149 | # for other threads, do it manually. |
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146 | 150 | return self.url |
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147 | 151 | |
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148 | 152 | def get_thread(self): |
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149 | 153 | return self.thread |
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150 | 154 | |
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151 | 155 | def get_thread_id(self): |
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152 | 156 | return self.thread_id |
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153 | 157 | |
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154 | 158 | def _get_cache_key(self): |
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155 | 159 | return [datetime_to_epoch(self.last_edit_time)] |
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156 | 160 | |
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157 | 161 | def get_view_params(self, *args, **kwargs): |
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158 | 162 | """ |
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159 | 163 | Gets the parameters required for viewing the post based on the arguments |
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160 | 164 | given and the post itself. |
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161 | 165 | """ |
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162 | 166 | thread = kwargs.get('thread') or self.get_thread() |
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163 | 167 | |
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164 | 168 | css_classes = [CSS_CLS_POST] |
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165 | 169 | if thread.is_archived(): |
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166 | 170 | css_classes.append(CSS_CLS_ARCHIVE_POST) |
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167 | 171 | elif not thread.can_bump(): |
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168 | 172 | css_classes.append(CSS_CLS_DEAD_POST) |
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169 | 173 | if self.is_hidden(): |
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170 | 174 | css_classes.append(CSS_CLS_HIDDEN_POST) |
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171 | 175 | if thread.is_monochrome(): |
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172 | 176 | css_classes.append(CSS_CLS_MONOCHROME) |
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173 | 177 | |
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174 | 178 | params = dict() |
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175 | 179 | for param in POST_VIEW_PARAMS: |
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176 | 180 | if param in kwargs: |
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177 | 181 | params[param] = kwargs[param] |
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178 | 182 | |
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179 | 183 | params.update({ |
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180 | 184 | PARAMETER_POST: self, |
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181 | 185 | PARAMETER_IS_OPENING: self.is_opening(), |
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182 | 186 | PARAMETER_THREAD: thread, |
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183 |
PARAMETER_CSS_CLASS: |
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187 | PARAMETER_CSS_CLASS: CSS_CLASS_DELIMITER.join(css_classes), | |
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184 | 188 | }) |
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185 | 189 | |
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186 | 190 | return params |
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187 | 191 | |
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188 | 192 | def get_view(self, *args, **kwargs) -> str: |
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189 | 193 | """ |
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190 | 194 | Renders post's HTML view. Some of the post params can be passed over |
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191 | 195 | kwargs for the means of caching (if we view the thread, some params |
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192 | 196 | are same for every post and don't need to be computed over and over. |
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193 | 197 | """ |
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194 | 198 | params = self.get_view_params(*args, **kwargs) |
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195 | 199 | |
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196 |
return render_to_string( |
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200 | return render_to_string(TEMPLATE_POST, params) | |
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197 | 201 | |
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198 | 202 | def get_images(self) -> Attachment: |
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199 | 203 | return self.attachments.filter(mimetype__in=FILE_TYPES_IMAGE) |
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200 | 204 | |
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201 | 205 | def get_first_image(self) -> Attachment: |
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202 | 206 | try: |
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203 | 207 | return self.get_images().earliest('-id') |
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204 | 208 | except Attachment.DoesNotExist: |
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205 | 209 | return None |
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206 | 210 | |
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207 | 211 | def set_global_id(self, key_pair=None): |
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208 | 212 | """ |
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209 | 213 | Sets global id based on the given key pair. If no key pair is given, |
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210 | 214 | default one is used. |
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211 | 215 | """ |
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212 | 216 | |
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213 | 217 | if key_pair: |
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214 | 218 | key = key_pair |
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215 | 219 | else: |
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216 | 220 | try: |
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217 | 221 | key = KeyPair.objects.get(primary=True) |
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218 | 222 | except KeyPair.DoesNotExist: |
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219 | 223 | # Do not update the global id because there is no key defined |
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220 | 224 | return |
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221 | 225 | global_id = GlobalId(key_type=key.key_type, |
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222 | 226 | key=key.public_key, |
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223 | 227 | local_id=self.id) |
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224 | 228 | global_id.save() |
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225 | 229 | |
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226 | 230 | self.global_id = global_id |
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227 | 231 | |
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228 | 232 | self.save(update_fields=['global_id']) |
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229 | 233 | |
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230 | 234 | def get_pub_time_str(self): |
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231 | 235 | return str(self.pub_time) |
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232 | 236 | |
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233 | 237 | def get_replied_ids(self): |
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234 | 238 | """ |
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235 | 239 | Gets ID list of the posts that this post replies. |
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236 | 240 | """ |
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237 | 241 | |
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238 | 242 | raw_text = self.get_raw_text() |
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239 | 243 | |
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240 | 244 | local_replied = REGEX_REPLY.findall(raw_text) |
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241 | 245 | global_replied = [] |
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242 | 246 | for match in REGEX_GLOBAL_REPLY.findall(raw_text): |
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243 | 247 | key_type = match[0] |
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244 | 248 | key = match[1] |
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245 | 249 | local_id = match[2] |
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246 | 250 | |
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247 | 251 | try: |
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248 | 252 | global_id = GlobalId.objects.get(key_type=key_type, |
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249 | 253 | key=key, local_id=local_id) |
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250 | 254 | for post in Post.objects.filter(global_id=global_id).only('id'): |
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251 | 255 | global_replied.append(post.id) |
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252 | 256 | except GlobalId.DoesNotExist: |
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253 | 257 | pass |
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254 | 258 | return local_replied + global_replied |
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255 | 259 | |
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256 | 260 | def get_post_data(self, format_type=DIFF_TYPE_JSON, request=None, |
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257 | 261 | include_last_update=False) -> str: |
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258 | 262 | """ |
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259 | 263 | Gets post HTML or JSON data that can be rendered on a page or used by |
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260 | 264 | API. |
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261 | 265 | """ |
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262 | 266 | |
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263 | 267 | return get_exporter(format_type).export(self, request, |
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264 | 268 | include_last_update) |
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265 | 269 | |
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266 | 270 | def _build_url(self): |
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267 | 271 | opening = self.is_opening() |
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268 | 272 | opening_id = self.id if opening else self.get_thread().get_opening_post_id() |
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269 | 273 | url = reverse('thread', kwargs={'post_id': opening_id}) |
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270 | 274 | if not opening: |
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271 | 275 | url += '#' + str(self.id) |
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272 | 276 | |
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273 | 277 | return url |
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274 | 278 | |
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275 | 279 | def save(self, force_insert=False, force_update=False, using=None, |
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276 | 280 | update_fields=None): |
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277 | 281 | new_post = self.id is None |
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278 | 282 | |
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279 | 283 | self.uid = str(uuid.uuid4()) |
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280 | 284 | if update_fields is not None and 'uid' not in update_fields: |
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281 | 285 | update_fields += ['uid'] |
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282 | 286 | |
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283 | 287 | if not new_post: |
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284 | 288 | thread = self.get_thread() |
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285 | 289 | if thread: |
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286 | 290 | thread.last_edit_time = self.last_edit_time |
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287 | 291 | thread.save(update_fields=['last_edit_time', 'status']) |
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288 | 292 | |
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289 | 293 | super().save(force_insert, force_update, using, update_fields) |
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290 | 294 | |
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291 | 295 | if new_post: |
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292 | 296 | self.url = self._build_url() |
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293 | 297 | super().save(update_fields=['url']) |
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294 | 298 | |
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295 | 299 | def get_text(self) -> str: |
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296 | 300 | return self._text_rendered |
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297 | 301 | |
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298 | 302 | def get_raw_text(self) -> str: |
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299 | 303 | return self.text |
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300 | 304 | |
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301 | 305 | def get_sync_text(self) -> str: |
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302 | 306 | """ |
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303 | 307 | Returns text applicable for sync. It has absolute post reflinks. |
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304 | 308 | """ |
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305 | 309 | |
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306 | 310 | replacements = dict() |
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307 | 311 | for post_id in REGEX_REPLY.findall(self.get_raw_text()): |
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308 | 312 | try: |
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309 | 313 | absolute_post_id = str(Post.objects.get(id=post_id).global_id) |
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310 | 314 | replacements[post_id] = absolute_post_id |
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311 | 315 | except Post.DoesNotExist: |
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312 | 316 | pass |
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313 | 317 | |
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314 | 318 | text = self.get_raw_text() or '' |
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315 | 319 | for key in replacements: |
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316 | 320 | text = text.replace('[post]{}[/post]'.format(key), |
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317 | 321 | '[post]{}[/post]'.format(replacements[key])) |
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318 | 322 | text = text.replace('\r\n', '\n').replace('\r', '\n') |
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319 | 323 | |
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320 | 324 | return text |
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321 | 325 | |
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322 | 326 | def get_tripcode(self): |
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323 | 327 | if self.tripcode: |
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324 | 328 | return Tripcode(self.tripcode) |
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325 | 329 | |
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326 | 330 | def get_link_view(self): |
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327 | 331 | """ |
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328 | 332 | Gets view of a reflink to the post. |
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329 | 333 | """ |
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330 | 334 | result = '<a href="{}">>>{}</a>'.format(self.get_absolute_url(), |
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331 | 335 | self.id) |
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332 | 336 | if self.is_opening(): |
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333 | 337 | result = '<b>{}</b>'.format(result) |
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334 | 338 | |
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335 | 339 | return result |
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336 | 340 | |
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337 | 341 | def is_hidden(self) -> bool: |
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338 | 342 | return self.hidden |
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339 | 343 | |
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340 | 344 | def set_hidden(self, hidden): |
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341 | 345 | self.hidden = hidden |
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342 | 346 | |
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343 | 347 | def clear_cache(self): |
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344 | 348 | """ |
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345 | 349 | Clears sync data (content cache, signatures etc). |
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346 | 350 | """ |
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347 | 351 | global_id = self.global_id |
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348 | 352 | if global_id is not None and global_id.is_local()\ |
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349 | 353 | and global_id.content is not None: |
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350 | 354 | global_id.clear_cache() |
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351 | 355 | |
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352 | 356 | def get_tags(self): |
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353 | 357 | return self.get_thread().get_tags() |
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354 | 358 | |
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355 | 359 | def get_ip_color(self): |
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356 | 360 | return hashlib.md5(self.poster_ip.encode()).hexdigest()[:6] |
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357 | 361 | |
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358 | 362 | def has_ip(self): |
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359 | 363 | return self.poster_ip != NO_IP |
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360 | 364 |
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