Mercurial > libervia-web
annotate libervia/pages/blog/view/page_meta.py @ 1347:48e2a8b07c0b
browser: async version of bridge
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Sat, 05 Sep 2020 21:59:11 +0200 |
| parents | a0954b6610aa |
| children | 1b94a5ab155f |
| rev | line source |
|---|---|
| 1216 | 1 #!/usr/bin/env python3 |
| 1239 | 2 |
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3 import unicodedata |
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4 import re |
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5 import html |
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6 from libervia.server.constants import Const as C |
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7 from twisted.words.protocols.jabber import jid |
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8 from sat.core.i18n import _ |
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9 from sat.tools.common.template import safe |
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10 from sat.tools.common import uri |
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11 from sat.tools.common import data_format |
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12 from libervia.server import utils |
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13 from libervia.server.utils import SubPage |
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14 from sat.core.log import getLogger |
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15 |
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16 log = getLogger(__name__) |
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17 |
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18 """generic blog (with service/node provided)""" |
| 1216 | 19 name = 'blog_view' |
| 20 template = "blog/articles.html" | |
| 21 uri_handlers = {('pubsub', 'microblog'): 'microblog_uri'} | |
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22 |
| 1216 | 23 RE_TEXT_URL = re.compile(r'[^a-zA-Z,_]+') |
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24 TEXT_MAX_LEN = 60 |
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25 TEXT_WORD_MIN_LENGHT = 4 |
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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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28 |
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29 def microblog_uri(self, uri_data): |
| 1216 | 30 args = [uri_data['path'], uri_data['node']] |
| 31 if 'item' in uri_data: | |
| 32 args.extend(['id', uri_data['item']]) | |
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33 return self.getURL(*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.getRData(request) |
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45 |
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46 try: |
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47 service = self.nextPath(request) |
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48 except IndexError: |
| 1216 | 49 data['service'] = '' |
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50 else: |
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51 try: |
| 1216 | 52 data["service"] = jid.JID(service) |
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53 except Exception: |
| 1216 | 54 log.warning(_("bad service entered: {}").format(service)) |
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55 self.pageError(request, C.HTTP_BAD_REQUEST) |
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56 |
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57 try: |
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58 node = self.nextPath(request) |
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59 except IndexError: |
| 1216 | 60 node = '@' |
| 61 data['node'] = '' if node == '@' else node | |
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62 |
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63 try: |
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64 filter_kw = data['filter_keyword'] = self.nextPath(request) |
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65 except IndexError: |
| 1216 | 66 filter_kw = '@' |
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67 else: |
| 1216 | 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 |
| 1216 | 71 elif filter_kw == 'id': |
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72 try: |
| 1216 | 73 data['item'] = self.nextPath(request) |
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74 except IndexError: |
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75 self.pageError(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.nextPath(request) |
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79 except IndexError: |
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80 pass |
| 1216 | 81 elif filter_kw == 'tag': |
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82 try: |
| 1216 | 83 data['tag'] = self.nextPath(request) |
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84 except IndexError: |
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85 self.pageError(request, C.HTTP_BAD_REQUEST) |
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86 else: |
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87 # invalid filter keyword |
| 1216 | 88 log.warning(_("invalid filter keyword: {filter_kw}").format( |
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89 filter_kw=filter_kw)) |
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90 self.pageError(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.getURLByPath( |
| 1216 | 95 SubPage('blog_view'), |
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96 service, |
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97 node, |
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98 filter_kw, |
| 1216 | 99 SubPage('blog_feed_atom'), |
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100 ) |
| 1216 | 101 request.template_data['atom_url'] = atom_url |
| 102 request.template_data.setdefault('links', []).append({ | |
| 103 "href": atom_url, | |
| 104 "type": "application/atom+xml", | |
| 105 "rel": "alternate", | |
| 106 "title": "{service}'s blog".format(service=service)}) | |
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107 |
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108 |
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109 async def appendComments(self, request, blog_items, profile): |
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110 await self.fillMissingIdentities( |
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111 request, [i['author_jid'] for i in blog_items['items']]) |
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112 for blog_item in blog_items['items']: |
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113 for comment_data in blog_item['comments']: |
| 1216 | 114 service = comment_data['service'] |
| 115 node = comment_data['node'] | |
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116 try: |
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117 comments_data = await self.host.bridgeCall('mbGet', |
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118 service, |
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119 node, |
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120 C.NO_LIMIT, |
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121 [], |
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122 {C.KEY_ORDER_BY: C.ORDER_BY_CREATION}, |
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123 profile) |
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124 except Exception as e: |
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125 log.warning( |
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126 _("Can't get comments at {node} (service: {service}): {msg}").format( |
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127 service=service, |
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128 node=node, |
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129 msg=e)) |
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130 continue |
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131 |
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132 comments = data_format.deserialise(comments_data) |
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133 comment_data['items'] = comments['items'] |
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134 await appendComments(self, request, comments, profile) |
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135 |
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136 async def getBlogItems(self, request, service, node, item_id, extra, profile): |
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137 try: |
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138 if item_id: |
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139 items_id = [item_id] |
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140 else: |
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141 items_id = [] |
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142 blog_data = await self.host.bridgeCall('mbGet', |
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143 service.userhost(), |
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144 node, |
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145 C.NO_LIMIT, |
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146 items_id, |
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147 extra, |
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148 profile) |
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149 except Exception as e: |
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150 # FIXME: need a better way to test errors in bridge errback |
| 1216 | 151 if "forbidden" in str(e): |
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152 self.pageError(request, 401) |
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153 else: |
| 1216 | 154 log.warning(_("can't retrieve blog for [{service}]: {msg}".format( |
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155 service = service.userhost(), msg=e))) |
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156 blog_data = {"items": []} |
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157 else: |
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158 blog_data = data_format.deserialise(blog_data) |
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159 |
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160 return blog_data |
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161 |
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162 async def prepare_render(self, request): |
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163 data = self.getRData(request) |
| 1216 | 164 page_max = data.get("page_max", 10) |
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165 # if the comments are not explicitly hidden, we show them |
| 1216 | 166 service, node, item_id, show_comments = data.get('service', ''), data.get('node', ''), data.get('item'), data.get('show_comments', True) |
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167 profile = self.getProfile(request) |
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168 if profile is None: |
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169 profile = C.SERVICE_PROFILE |
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170 profile_connected = False |
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171 else: |
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172 profile_connected = True |
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173 |
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174 ## pagination/filtering parameters |
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175 if item_id: |
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176 extra = {} |
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177 else: |
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178 extra = self.getPubsubExtra(request, page_max=page_max) |
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179 tag = data.get('tag') |
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180 if tag: |
| 1216 | 181 extra['mam_filter_{}'.format(C.MAM_FILTER_CATEGORY)] = tag |
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182 |
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183 ## main data ## |
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184 # we get data from backend/XMPP here |
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185 blog_items = await getBlogItems(self, request, service, node, item_id, extra, profile) |
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186 |
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187 ## navigation ## |
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188 # no let's fill service, node and pagination URLs |
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189 template_data = request.template_data |
| 1216 | 190 if 'service' not in template_data: |
| 191 template_data['service'] = service | |
| 192 if 'node' not in template_data: | |
| 193 template_data['node'] = node | |
| 194 target_profile = template_data.get('target_profile') | |
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195 |
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196 if blog_items: |
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197 if not item_id: |
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198 self.setPagination(request, blog_items) |
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199 else: |
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200 if item_id: |
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201 # if item id has been specified in URL and it's not found, |
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202 # we must return an error |
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203 self.pageError(request, C.HTTP_NOT_FOUND) |
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204 |
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205 ## identities ## |
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206 # identities are used to show nice nickname or avatars |
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207 await self.fillMissingIdentities(request, [i['author_jid'] for i in blog_items['items']]) |
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208 |
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209 ## Comments ## |
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210 # if comments are requested, we need to take them |
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211 if show_comments: |
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212 await appendComments(self, request, blog_items, profile) |
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213 |
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214 ## URLs ## |
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215 # We will fill items_http_uri and tags_http_uri in template_data with suitable urls |
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216 # if we know the profile, we use it instead of service + blog (nicer url) |
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217 if target_profile is None: |
| 1216 | 218 blog_base_url_item = self.getPageByName('blog_view').getURL(service.full(), node or '@', 'id') |
| 219 blog_base_url_tag = self.getPageByName('blog_view').getURL(service.full(), node or '@', 'tag') | |
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220 else: |
| 1216 | 221 blog_base_url_item = self.getURLByNames([('user', [target_profile]), ('user_blog', ['id'])]) |
| 222 blog_base_url_tag = self.getURLByNames([('user', [target_profile]), ('user_blog', ['tag'])]) | |
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223 # we also set the background image if specified by user |
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224 bg_img = await self.host.bridgeCall('asyncGetParamA', 'Background', 'Blog page', 'value', -1, template_data['target_profile']) |
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225 if bg_img: |
| 1216 | 226 template_data['dynamic_style'] = safe(""" |
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227 :root { |
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228 --bg-img: url("%s"); |
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229 } |
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230 """ % html.escape(bg_img, True)) |
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231 |
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232 template_data['blog_items'] = data['blog_items'] = blog_items |
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233 if request.args.get(b'reverse') == ['1']: |
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234 template_data['blog_items'].items.reverse() |
| 1216 | 235 template_data['items_http_uri'] = items_http_uri = {} |
| 236 template_data['tags_http_uri'] = tags_http_uri = {} | |
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237 |
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238 |
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239 for item in blog_items['items']: |
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240 blog_canonical_url = '/'.join([blog_base_url_item, utils.quote(item['id'])]) |
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241 if len(blog_canonical_url) > URL_LIMIT_MARK: |
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242 blog_url = blog_canonical_url |
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243 else: |
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244 # we add text from title or body at the end of URL |
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245 # to make it more human readable |
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246 text = item.get('title', item['content']) |
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247 # we change special chars to ascii one, trick found at https://stackoverflow.com/a/3194567 |
| 1216 | 248 text = unicodedata.normalize('NFD', text).encode('ascii', 'ignore').decode('utf-8') |
| 249 text = RE_TEXT_URL.sub(' ', text).lower() | |
| 250 text = '-'.join([t for t in text.split() if t and len(t)>=TEXT_WORD_MIN_LENGHT]) | |
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251 while len(text) > TEXT_MAX_LEN: |
| 1216 | 252 if '-' in text: |
| 253 text = text.rsplit('-', 1)[0] | |
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254 else: |
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255 text = text[:TEXT_MAX_LEN] |
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256 if text: |
| 1216 | 257 blog_url = blog_canonical_url + '/' + text |
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258 else: |
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259 blog_url = blog_canonical_url |
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260 |
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261 items_http_uri[item['id']] = self.host.getExtBaseURL(request, blog_url) |
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262 for tag in item['tags']: |
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263 if tag not in tags_http_uri: |
| 1216 | 264 tag_url = '/'.join([blog_base_url_tag, utils.quote(tag)]) |
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265 tags_http_uri[tag] = self.host.getExtBaseURL(request, tag_url) |
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266 |
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267 # if True, page should display a comment box |
| 1216 | 268 template_data['allow_commenting'] = data.get('allow_commenting', profile_connected) |
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269 |
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270 # last but not least, we add a xmpp: link to the node |
| 1216 | 271 uri_args = {'path': service.full()} |
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272 if node: |
| 1216 | 273 uri_args['node'] = node |
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274 if item_id: |
| 1216 | 275 uri_args['item'] = item_id |
| 276 template_data['xmpp_uri'] = uri.buildXMPPUri('pubsub', subtype='microblog', **uri_args) | |
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277 |
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278 |
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279 async def on_data_post(self, request): |
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280 profile = self.getProfile(request) |
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281 if profile is None: |
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282 self.pageError(request, C.HTTP_FORBIDDEN) |
| 1216 | 283 type_ = self.getPostedData(request, 'type') |
| 284 if type_ == 'comment': | |
| 285 service, node, body = self.getPostedData(request, ('service', 'node', 'body')) | |
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286 |
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287 if not body: |
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288 self.pageError(request, C.HTTP_BAD_REQUEST) |
| 1216 | 289 comment_data = {"content": body} |
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290 try: |
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291 await self.host.bridgeCall('mbSend', |
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292 service, |
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293 node, |
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294 data_format.serialise(comment_data), |
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295 profile) |
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296 except Exception as e: |
| 1216 | 297 if "forbidden" in str(e): |
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298 self.pageError(request, 401) |
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299 else: |
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300 raise e |
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301 else: |
| 1216 | 302 log.warning(_("Unhandled data type: {}").format(type_)) |