annotate libervia/web/pages/blog/view/page_meta.py @ 1518:eb00d593801d

refactoring: rename `libervia` to `libervia.web` + update imports following backend changes
author Goffi <goffi@goffi.org>
date Fri, 02 Jun 2023 16:49:28 +0200
parents libervia/pages/blog/view/page_meta.py@106bae41f5c8
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/env python3
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2
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3 import html
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4 from typing import Any, Dict, Optional
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5
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6 from libervia.backend.core.i18n import D_, _
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7 from libervia.backend.core.log import getLogger
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8 from libervia.backend.tools.common import uri
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9 from libervia.backend.tools.common import data_format
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10 from libervia.backend.tools.common import regex
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11 from libervia.backend.tools.common.template import safe
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12 from twisted.web import server
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13 from twisted.words.protocols.jabber import jid
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14
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15 from libervia.web.server import utils
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16 from libervia.web.server.constants import Const as C
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17 from libervia.web.server.utils import SubPage
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18
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19 log = getLogger(__name__)
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20
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21 """generic blog (with service/node provided)"""
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22 name = 'blog_view'
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23 template = "blog/articles.html"
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24 uri_handlers = {('pubsub', 'microblog'): 'microblog_uri'}
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25
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26 URL_LIMIT_MARK = 90 # if canonical URL is longer than that, text will not be appended
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27
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29 def microblog_uri(self, uri_data):
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30 args = [uri_data['path'], uri_data['node']]
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31 if 'item' in uri_data:
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32 args.extend(['id', uri_data['item']])
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33 return self.get_url(*args)
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34
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35 def parse_url(self, request):
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36 """URL is /[service]/[node]/[filter_keyword]/[item]|[other]
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37
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38 if [node] is '@', default namespace is used
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39 if a value is unset, default one will be used
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40 keyword can be one of:
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41 id: next value is a item id
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42 tag: next value is a blog tag
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43 """
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44 data = self.get_r_data(request)
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46 try:
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47 service = self.next_path(request)
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48 except IndexError:
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49 data['service'] = ''
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50 else:
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51 try:
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52 data["service"] = jid.JID(service)
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53 except Exception:
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54 log.warning(_("bad service entered: {}").format(service))
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55 self.page_error(request, C.HTTP_BAD_REQUEST)
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57 try:
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58 node = self.next_path(request)
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59 except IndexError:
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60 node = '@'
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61 data['node'] = '' if node == '@' else node
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63 try:
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64 filter_kw = data['filter_keyword'] = self.next_path(request)
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65 except IndexError:
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66 filter_kw = '@'
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67 else:
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68 if filter_kw == '@':
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69 # No filter, this is used when a subpage is needed, notably Atom feed
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70 pass
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71 elif filter_kw == 'id':
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72 try:
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73 data['item'] = self.next_path(request)
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74 except IndexError:
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75 self.page_error(request, C.HTTP_BAD_REQUEST)
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76 # we get one more argument in case text has been added to have a nice URL
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77 try:
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78 self.next_path(request)
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79 except IndexError:
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80 pass
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81 elif filter_kw == 'tag':
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82 try:
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83 data['tag'] = self.next_path(request)
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84 except IndexError:
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85 self.page_error(request, C.HTTP_BAD_REQUEST)
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86 else:
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87 # invalid filter keyword
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88 log.warning(_("invalid filter keyword: {filter_kw}").format(
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89 filter_kw=filter_kw))
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90 self.page_error(request, C.HTTP_BAD_REQUEST)
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91
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92 # if URL is parsed here, we'll have atom.xml available and we need to
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93 # add the link to the page
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94 atom_url = self.get_url_by_path(
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95 SubPage('blog_view'),
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96 service,
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97 node,
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98 filter_kw,
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99 SubPage('blog_feed_atom'),
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100 )
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101 request.template_data['atom_url'] = atom_url
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102 request.template_data.setdefault('links', []).append({
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103 "href": atom_url,
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104 "type": "application/atom+xml",
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105 "rel": "alternate",
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106 "title": "{service}'s blog".format(service=service)})
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107
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108
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109 def add_breadcrumb(self, request, breadcrumbs):
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110 data = self.get_r_data(request)
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111 breadcrumbs.append({
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112 "label": D_("Feed"),
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113 "url": self.get_url(data["service"].full(), data.get("node", "@"))
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114 })
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115 if "item" in data:
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116 breadcrumbs.append({
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117 "label": D_("Post"),
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118 })
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119
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120
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121 async def append_comments(
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122 self,
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123 request: server.Request,
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124 blog_items: dict,
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125 profile: str,
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126 _seen: Optional[set] = None
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127 ) -> None:
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128 """Recursively download and append comments of items
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129
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130 @param blog_items: items data
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131 @param profile: Libervia profile
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132 @param _seen: used to avoid infinite recursion. For internal use only
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133 """
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134 if _seen is None:
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135 _seen = set()
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136 await self.fill_missing_identities(
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137 request, [i['author_jid'] for i in blog_items['items']])
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138 extra: Dict[str, Any] = {C.KEY_ORDER_BY: C.ORDER_BY_CREATION}
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139 if not self.use_cache(request):
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140 extra[C.KEY_USE_CACHE] = False
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141 for blog_item in blog_items['items']:
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142 for comment_data in blog_item['comments']:
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143 service = comment_data['service']
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144 node = comment_data['node']
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145 service_node = (service, node)
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146 if service_node in _seen:
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147 log.warning(
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148 f"Items from {node!r} at {service} have already been retrieved, "
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149 "there is a recursion at this service"
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150 )
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151 comment_data["items"] = []
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152 continue
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153 else:
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154 _seen.add(service_node)
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155 try:
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156 comments_data = await self.host.bridge_call('mb_get',
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157 service,
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158 node,
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159 C.NO_LIMIT,
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160 [],
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161 data_format.serialise(
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162 extra
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163 ),
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164 profile)
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165 except Exception as e:
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166 log.warning(
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167 _("Can't get comments at {node} (service: {service}): {msg}").format(
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168 service=service,
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169 node=node,
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170 msg=e))
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171 comment_data['items'] = []
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172 continue
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173
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174 comments = data_format.deserialise(comments_data)
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175 if comments is None:
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176 log.error(f"Comments should not be None: {comment_data}")
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177 comment_data["items"] = []
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178 continue
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179 comment_data['items'] = comments['items']
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180 await append_comments(self, request, comments, profile, _seen=_seen)
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181
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182 async def get_blog_items(
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183 self,
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184 request: server.Request,
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185 service: jid.JID,
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186 node: str,
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187 item_id,
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188 extra: Dict[str, Any],
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189 profile: str
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190 ) -> dict:
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191 try:
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192 if item_id:
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193 items_id = [item_id]
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194 else:
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195 items_id = []
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196 if not self.use_cache(request):
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197 extra[C.KEY_USE_CACHE] = False
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198 blog_data = await self.host.bridge_call('mb_get',
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199 service.userhost(),
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200 node,
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201 C.NO_LIMIT,
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202 items_id,
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203 data_format.serialise(extra),
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204 profile)
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205 except Exception as e:
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206 # FIXME: need a better way to test errors in bridge errback
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207 if "forbidden" in str(e):
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208 self.page_error(request, 401)
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209 else:
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210 log.warning(_("can't retrieve blog for [{service}]: {msg}".format(
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211 service = service.userhost(), msg=e)))
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212 blog_data = {"items": []}
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213 else:
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214 blog_data = data_format.deserialise(blog_data)
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215
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216 return blog_data
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217
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218 async def prepare_render(self, request):
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219 data = self.get_r_data(request)
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220 template_data = request.template_data
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221 page_max = data.get("page_max", 10)
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222 # if the comments are not explicitly hidden, we show them
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223 service, node, item_id, show_comments = (
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224 data.get('service', ''),
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225 data.get('node', ''),
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226 data.get('item'),
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227 data.get('show_comments', True)
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228 )
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229 profile = self.get_profile(request)
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230 if profile is None:
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231 profile = C.SERVICE_PROFILE
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232 profile_connected = False
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233 else:
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234 profile_connected = True
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235
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236 ## pagination/filtering parameters
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237 if item_id:
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238 extra = {}
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239 else:
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240 extra = self.get_pubsub_extra(request, page_max=page_max)
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241 tag = data.get('tag')
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242 if tag:
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243 extra[f'mam_filter_{C.MAM_FILTER_CATEGORY}'] = tag
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244 self.handle_search(request, extra)
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245
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246 ## main data ##
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247 # we get data from backend/XMPP here
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248 blog_items = await get_blog_items(self, request, service, node, item_id, extra, profile)
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249
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250 ## navigation ##
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251 # no let's fill service, node and pagination URLs
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252 if 'service' not in template_data:
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253 template_data['service'] = service
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254 if 'node' not in template_data:
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255 template_data['node'] = node
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256 target_profile = template_data.get('target_profile')
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257
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258 if blog_items:
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259 if item_id:
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260 template_data["previous_page_url"] = self.get_url(
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261 service.full(),
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parents: 1419
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262 node,
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Goffi <goffi@goffi.org>
parents: 1419
diff changeset
263 before=item_id,
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parents: 1419
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264 page_max=1
cff720e26089 pages (blog/view): activate pagination when a single item is shown:
Goffi <goffi@goffi.org>
parents: 1419
diff changeset
265 )
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266 template_data["next_page_url"] = self.get_url(
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267 service.full(),
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268 node,
cff720e26089 pages (blog/view): activate pagination when a single item is shown:
Goffi <goffi@goffi.org>
parents: 1419
diff changeset
269 after=item_id,
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270 page_max=1
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Goffi <goffi@goffi.org>
parents: 1419
diff changeset
271 )
cff720e26089 pages (blog/view): activate pagination when a single item is shown:
Goffi <goffi@goffi.org>
parents: 1419
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272 blog_items["rsm"] = {
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273 "last": item_id,
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parents: 1419
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274 "first": item_id,
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Goffi <goffi@goffi.org>
parents: 1419
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275 }
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parents: 1419
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276 blog_items["complete"] = False
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parents: 1419
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277 else:
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278 self.set_pagination(request, blog_items)
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279 else:
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Goffi <goffi@goffi.org>
parents:
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280 if item_id:
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281 # if item id has been specified in URL and it's not found,
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282 # we must return an error
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283 self.page_error(request, C.HTTP_NOT_FOUND)
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284
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285 ## identities ##
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286 # identities are used to show nice nickname or avatars
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287 await self.fill_missing_identities(request, [i['author_jid'] for i in blog_items['items']])
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288
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289 ## Comments ##
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290 # if comments are requested, we need to take them
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291 if show_comments:
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292 await append_comments(self, request, blog_items, profile)
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293
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294 ## URLs ##
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295 # We will fill items_http_uri and tags_http_uri in template_data with suitable urls
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296 # if we know the profile, we use it instead of service + blog (nicer url)
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parents:
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297 if target_profile is None:
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298 blog_base_url_item = self.get_page_by_name('blog_view').get_url(service.full(), node or '@', 'id')
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299 blog_base_url_tag = self.get_page_by_name('blog_view').get_url(service.full(), node or '@', 'tag')
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300 else:
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301 blog_base_url_item = self.get_url_by_names([('user', [target_profile]), ('user_blog', ['id'])])
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302 blog_base_url_tag = self.get_url_by_names([('user', [target_profile]), ('user_blog', ['tag'])])
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303 # we also set the background image if specified by user
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304 bg_img = await self.host.bridge_call('param_get_a_async', 'Background', 'Blog page', 'value', -1, template_data['target_profile'])
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305 if bg_img:
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306 template_data['dynamic_style'] = safe("""
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307 :root {
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308 --bg-img: url("%s");
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309 }
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310 """ % html.escape(bg_img, True))
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parents:
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311
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312 template_data['blog_items'] = data['blog_items'] = blog_items
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313 if request.args.get(b'reverse') == ['1']:
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314 template_data['blog_items'].items.reverse()
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315 template_data['items_http_uri'] = items_http_uri = {}
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316 template_data['tags_http_uri'] = tags_http_uri = {}
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parents:
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317
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parents:
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318
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319 for item in blog_items['items']:
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320 blog_canonical_url = '/'.join([blog_base_url_item, utils.quote(item['id'])])
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321 if len(blog_canonical_url) > URL_LIMIT_MARK:
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322 blog_url = blog_canonical_url
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323 elif '-' not in item['id']:
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324 # we add text from title or body at the end of URL
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325 # to make it more human readable
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326 # we do it only if there is no "-", as a "-" probably means that
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327 # item's id is already user friendly.
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328 # TODO: to be removed, this is only kept for a transition period until
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329 # user friendly item IDs are more common.
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330 text = regex.url_friendly_text(item.get('title', item['content']))
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331 if text:
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332 blog_url = blog_canonical_url + '/' + text
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Goffi <goffi@goffi.org>
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333 else:
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334 blog_url = blog_canonical_url
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Goffi <goffi@goffi.org>
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335 else:
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336 blog_url = blog_canonical_url
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337
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338 items_http_uri[item['id']] = self.host.get_ext_base_url(request, blog_url)
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diff changeset
339 for tag in item['tags']:
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parents:
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340 if tag not in tags_http_uri:
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341 tag_url = '/'.join([blog_base_url_tag, utils.quote(tag)])
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342 tags_http_uri[tag] = self.host.get_ext_base_url(request, tag_url)
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343
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344 # if True, page should display a comment box
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345 template_data['allow_commenting'] = data.get('allow_commenting', profile_connected)
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346
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347 # last but not least, we add a xmpp: link to the node
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348 uri_args = {'path': service.full()}
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diff changeset
349 if node:
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350 uri_args['node'] = node
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parents:
diff changeset
351 if item_id:
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352 uri_args['item'] = item_id
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353 template_data['xmpp_uri'] = uri.build_xmpp_uri(
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354 'pubsub', subtype='microblog', **uri_args
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parents: 1466
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355 )
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parents:
diff changeset
356
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diff changeset
357
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358 async def on_data_post(self, request):
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359 profile = self.get_profile(request)
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parents:
diff changeset
360 if profile is None:
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diff changeset
361 self.page_error(request, C.HTTP_FORBIDDEN)
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362 type_ = self.get_posted_data(request, 'type')
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parents: 1207
diff changeset
363 if type_ == 'comment':
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364 service, node, body = self.get_posted_data(request, ('service', 'node', 'body'))
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Goffi <goffi@goffi.org>
parents:
diff changeset
365
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Goffi <goffi@goffi.org>
parents:
diff changeset
366 if not body:
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367 self.page_error(request, C.HTTP_BAD_REQUEST)
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368 comment_data = {"content_rich": body}
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Goffi <goffi@goffi.org>
parents:
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369 try:
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parents: 1493
diff changeset
370 await self.host.bridge_call('mb_send',
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parents: 1145
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371 service,
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Goffi <goffi@goffi.org>
parents: 1145
diff changeset
372 node,
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parents: 1145
diff changeset
373 data_format.serialise(comment_data),
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parents: 1145
diff changeset
374 profile)
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parents:
diff changeset
375 except Exception as e:
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parents: 1207
diff changeset
376 if "forbidden" in str(e):
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377 self.page_error(request, 401)
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Goffi <goffi@goffi.org>
parents:
diff changeset
378 else:
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Goffi <goffi@goffi.org>
parents:
diff changeset
379 raise e
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parents:
diff changeset
380 else:
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diff changeset
381 log.warning(_("Unhandled data type: {}").format(type_))