Mercurial > libervia-web
annotate libervia/web/pages/blog/view/page_meta.py @ 1552:c62027660ec1
doc (installation): update `pipx` instruction and remove `requirements.txt` mention
| author | Goffi <goffi@goffi.org> |
|---|---|
| date | Wed, 09 Aug 2023 00:48:21 +0200 |
| parents | eb00d593801d |
| children |
| rev | line source |
|---|---|
| 1216 | 1 #!/usr/bin/env python3 |
| 1239 | 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)""" |
| 1216 | 22 name = 'blog_view' |
| 23 template = "blog/articles.html" | |
| 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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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.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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45 |
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46 try: |
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47 service = self.next_path(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.page_error(request, C.HTTP_BAD_REQUEST) |
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56 |
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57 try: |
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58 node = self.next_path(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.next_path(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: |
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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 |
| 1216 | 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 |
| 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.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( |
| 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 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']: |
| 1216 | 143 service = comment_data['service'] |
| 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 |
| 1216 | 207 if "forbidden" in str(e): |
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208 self.page_error(request, 401) |
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209 else: |
| 1216 | 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 |
| 1216 | 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 |
| 1216 | 252 if 'service' not in template_data: |
| 253 template_data['service'] = service | |
| 254 if 'node' not in template_data: | |
| 255 template_data['node'] = node | |
| 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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262 node, |
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263 before=item_id, |
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264 page_max=1 |
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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, |
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269 after=item_id, |
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270 page_max=1 |
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271 ) |
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272 blog_items["rsm"] = { |
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273 "last": item_id, |
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274 "first": item_id, |
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275 } |
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276 blog_items["complete"] = False |
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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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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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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: |
| 1216 | 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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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() |
| 1216 | 315 template_data['items_http_uri'] = items_http_uri = {} |
| 316 template_data['tags_http_uri'] = tags_http_uri = {} | |
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317 |
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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: |
| 1216 | 332 blog_url = blog_canonical_url + '/' + text |
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333 else: |
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334 blog_url = blog_canonical_url |
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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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339 for tag in item['tags']: |
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340 if tag not in tags_http_uri: |
| 1216 | 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 |
| 1216 | 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 |
| 1216 | 348 uri_args = {'path': service.full()} |
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349 if node: |
| 1216 | 350 uri_args['node'] = node |
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351 if item_id: |
| 1216 | 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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355 ) |
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356 |
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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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360 if profile is None: |
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361 self.page_error(request, C.HTTP_FORBIDDEN) |
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362 type_ = self.get_posted_data(request, 'type') |
| 1216 | 363 if type_ == 'comment': |
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364 service, node, body = self.get_posted_data(request, ('service', 'node', 'body')) |
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365 |
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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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369 try: |
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370 await self.host.bridge_call('mb_send', |
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371 service, |
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372 node, |
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373 data_format.serialise(comment_data), |
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374 profile) |
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375 except Exception as e: |
| 1216 | 376 if "forbidden" in str(e): |
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377 self.page_error(request, 401) |
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378 else: |
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379 raise e |
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380 else: |
| 1216 | 381 log.warning(_("Unhandled data type: {}").format(type_)) |