Mercurial > libervia-web

annotate libervia/pages/blog/view/page_meta.py @ 1188:263fed3ce354

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server (pages): on_data_post can now raise an exceptions.DataError to reload the page with a warning message (without validating data posted)
author Goffi <goffi@goffi.org>
date Sun, 26 May 2019 22:19:42 +0200
parents 0f37b65fe7c2
children 67ec22356457
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #!/usr/bin/env python2.7
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2 # -*- coding: utf-8 -*-
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3 import unicodedata
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4 import re
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5 import cgi
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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 twisted.internet import defer
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9 from sat.tools.common import data_objects
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10 from libervia.server import session_iface
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11 from sat.core.i18n import _
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12 from sat.tools.common.template import safe
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13 from sat.tools.common import uri
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14 from sat.tools.common import data_format
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15 from libervia.server import utils
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16 from libervia.server.utils import SubPage
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17 from sat.core.log import getLogger
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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 = u'blog_view'
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23 template = u"blog/articles.html"
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24 uri_handlers = {(u'pubsub', u'microblog'): 'microblog_uri'}
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25
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26 RE_TEXT_URL = re.compile(ur'[^a-zA-Z,_]+')
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27 TEXT_MAX_LEN = 60
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28 TEXT_WORD_MIN_LENGHT = 4
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29 URL_LIMIT_MARK = 90 # if canonical URL is longer than that, text will not be appended
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30
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31
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32 def microblog_uri(self, uri_data):
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33 args = [uri_data[u'path'], uri_data[u'node']]
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34 if u'item' in uri_data:
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35 args.extend([u'id', uri_data[u'item']])
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36 return self.getURL(*args)
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37
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38 def parse_url(self, request):
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39 """URL is /[service]/[node]/[filter_keyword]/[item]|[other]
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40
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41 if [node] is '@', default namespace is used
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42 if a value is unset, default one will be used
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43 keyword can be one of:
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44 id: next value is a item id
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45 tag: next value is a blog tag
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46 """
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47 data = self.getRData(request)
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48
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49 try:
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50 service = self.nextPath(request)
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51 except IndexError:
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52 data['service'] = u''
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53 else:
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54 try:
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55 data[u"service"] = jid.JID(service)
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56 except Exception:
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57 log.warning(_(u"bad service entered: {}").format(service))
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58 self.pageError(request, C.HTTP_BAD_REQUEST)
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59
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60 try:
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61 node = self.nextPath(request)
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62 except IndexError:
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63 node = u'@'
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64 data['node'] = u'' if node == u'@' else node
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65
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66 try:
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67 filter_kw = data['filter_keyword'] = self.nextPath(request)
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68 except IndexError:
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69 filter_kw = u'@'
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70 else:
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71 if filter_kw == u'@':
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72 # No filter, this is used when a subpage is needed, notably Atom feed
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73 pass
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74 elif filter_kw == u'id':
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75 try:
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76 data[u'item'] = self.nextPath(request)
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77 except IndexError:
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78 self.pageError(request, C.HTTP_BAD_REQUEST)
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79 # we get one more argument in case text has been added to have a nice URL
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80 try:
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81 self.nextPath(request)
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82 except IndexError:
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83 pass
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84 elif filter_kw == u'tag':
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85 try:
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86 data[u'tag'] = self.nextPath(request)
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87 except IndexError:
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88 self.pageError(request, C.HTTP_BAD_REQUEST)
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89 else:
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90 # invalid filter keyword
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91 log.warning(_(u"invalid filter keyword: {filter_kw}").format(
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92 filter_kw=filter_kw))
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93 self.pageError(request, C.HTTP_BAD_REQUEST)
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94
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95 # if URL is parsed here, we'll have atom.xml available and we need to
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96 # add the link to the page
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97 atom_url = self.getURLByPath(
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98 SubPage(u'blog_view'),
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99 service,
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100 node,
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101 filter_kw,
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102 SubPage(u'blog_feed_atom'),
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103 )
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104 request.template_data.setdefault(u'links', []).append({
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105 u"href": atom_url,
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106 u"type": "application/atom+xml",
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107 u"rel": "alternate",
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108 u"title": "{service}'s blog".format(service=service)})
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109
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110
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111 @defer.inlineCallbacks
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112 def appendComments(self, blog_items, identities, profile):
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113 for blog_item in blog_items:
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114 if identities is not None:
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115 author = blog_item.author_jid
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116 if not author:
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117 log.warning(_(u"no author found for item {item_id}").format(item_id=blog_item.id))
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118 else:
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119 if author not in identities:
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120 identities[author] = yield self.host.bridgeCall(u'identityGet', author, profile)
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121 for comment_data in blog_item.comments:
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122 service = comment_data[u'service']
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123 node = comment_data[u'node']
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124 try:
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125 comments_data = yield self.host.bridgeCall(u'mbGet',
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126 service,
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127 node,
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128 C.NO_LIMIT,
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129 [],
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130 {C.KEY_ORDER_BY: C.ORDER_BY_CREATION},
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131 profile)
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132 except Exception as e:
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133 log.warning(_(u"Can't get comments at {node} (service: {service}): {msg}").format(
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134 service=service,
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135 node=node,
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136 msg=e))
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137 continue
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138
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Goffi <goffi@goffi.org>
parents:
diff changeset
139 comments = data_objects.BlogItems(comments_data)
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Goffi <goffi@goffi.org>
parents:
diff changeset
140 blog_item.appendCommentsItems(comments)
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Goffi <goffi@goffi.org>
parents:
diff changeset
141 yield appendComments(self, comments, identities, profile)
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Goffi <goffi@goffi.org>
parents:
diff changeset
142
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Goffi <goffi@goffi.org>
parents:
diff changeset
143 @defer.inlineCallbacks
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diff changeset
144 def getBlogItems(self, request, service, node, item_id, extra, profile):
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parents:
diff changeset
145 try:
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Goffi <goffi@goffi.org>
parents:
diff changeset
146 if item_id:
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Goffi <goffi@goffi.org>
parents:
diff changeset
147 items_id = [item_id]
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Goffi <goffi@goffi.org>
parents:
diff changeset
148 else:
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Goffi <goffi@goffi.org>
parents:
diff changeset
149 items_id = []
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Goffi <goffi@goffi.org>
parents:
diff changeset
150 blog_data = yield self.host.bridgeCall(u'mbGet',
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Goffi <goffi@goffi.org>
parents:
diff changeset
151 service.userhost(),
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Goffi <goffi@goffi.org>
parents:
diff changeset
152 node,
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Goffi <goffi@goffi.org>
parents:
diff changeset
153 C.NO_LIMIT,
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Goffi <goffi@goffi.org>
parents:
diff changeset
154 items_id,
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Goffi <goffi@goffi.org>
parents:
diff changeset
155 extra,
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
156 profile)
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Goffi <goffi@goffi.org>
parents:
diff changeset
157 except Exception as e:
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Goffi <goffi@goffi.org>
parents:
diff changeset
158 # FIXME: need a better way to test errors in bridge errback
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Goffi <goffi@goffi.org>
parents:
diff changeset
159 if u"forbidden" in unicode(e):
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Goffi <goffi@goffi.org>
parents:
diff changeset
160 self.pageError(request, 401)
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Goffi <goffi@goffi.org>
parents:
diff changeset
161 else:
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Goffi <goffi@goffi.org>
parents:
diff changeset
162 log.warning(_(u"can't retrieve blog for [{service}]: {msg}".format(
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Goffi <goffi@goffi.org>
parents:
diff changeset
163 service = service.userhost(), msg=e)))
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Goffi <goffi@goffi.org>
parents:
diff changeset
164 blog_data = ([], {})
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diff changeset
165
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diff changeset
166 defer.returnValue(data_objects.BlogItems(blog_data))
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diff changeset
167
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Goffi <goffi@goffi.org>
parents:
diff changeset
168 @defer.inlineCallbacks
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Goffi <goffi@goffi.org>
parents:
diff changeset
169 def prepare_render(self, request):
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Goffi <goffi@goffi.org>
parents:
diff changeset
170 data = self.getRData(request)
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171 page_max = data.get(u"page_max", 10)
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172 # if the comments are not explicitly hidden, we show them
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Goffi <goffi@goffi.org>
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173 service, node, item_id, show_comments = data.get(u'service', u''), data.get(u'node', u''), data.get(u'item'), data.get(u'show_comments', True)
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parents:
diff changeset
174 profile = self.getProfile(request)
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Goffi <goffi@goffi.org>
parents:
diff changeset
175 if profile is None:
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Goffi <goffi@goffi.org>
parents:
diff changeset
176 profile = C.SERVICE_PROFILE
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177 profile_connected = False
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178 else:
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179 profile_connected = True
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180
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Goffi <goffi@goffi.org>
parents:
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181 ## pagination/filtering parameters
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Goffi <goffi@goffi.org>
parents:
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182 if item_id:
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Goffi <goffi@goffi.org>
parents:
diff changeset
183 extra = {}
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parents:
diff changeset
184 else:
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185 extra = self.getPubsubExtra(request, page_max=page_max)
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186 tag = data.get('tag')
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Goffi <goffi@goffi.org>
parents:
diff changeset
187 if tag:
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Goffi <goffi@goffi.org>
parents:
diff changeset
188 extra[u'mam_filter_{}'.format(C.MAM_FILTER_CATEGORY)] = tag
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parents:
diff changeset
189
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Goffi <goffi@goffi.org>
parents:
diff changeset
190 ## main data ##
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Goffi <goffi@goffi.org>
parents:
diff changeset
191 # we get data from backend/XMPP here
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192 items = yield getBlogItems(self, request, service, node, item_id, extra, profile)
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parents:
diff changeset
193
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Goffi <goffi@goffi.org>
parents:
diff changeset
194 ## navigation ##
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Goffi <goffi@goffi.org>
parents:
diff changeset
195 # no let's fill service, node and pagination URLs
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Goffi <goffi@goffi.org>
parents:
diff changeset
196 template_data = request.template_data
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Goffi <goffi@goffi.org>
parents:
diff changeset
197 if u'service' not in template_data:
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Goffi <goffi@goffi.org>
parents:
diff changeset
198 template_data[u'service'] = service
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Goffi <goffi@goffi.org>
parents:
diff changeset
199 if u'node' not in template_data:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
200 template_data[u'node'] = node
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Goffi <goffi@goffi.org>
parents:
diff changeset
201 target_profile = template_data.get(u'target_profile')
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Goffi <goffi@goffi.org>
parents:
diff changeset
202
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
203 if items:
1141
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Goffi <goffi@goffi.org>
parents: 1140
diff changeset
204 if not item_id:
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parents: 1140
diff changeset
205 self.setPagination(request, items.metadata)
1077
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Goffi <goffi@goffi.org>
parents:
diff changeset
206 else:
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Goffi <goffi@goffi.org>
parents:
diff changeset
207 if item_id:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
208 # if item id has been specified in URL and it's not found,
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
209 # we must return an error
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
210 self.pageError(request, C.HTTP_NOT_FOUND)
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Goffi <goffi@goffi.org>
parents:
diff changeset
211
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
212 ## identities ##
1133
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213 # identities are used to show nice nickname or avatars
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parents:
diff changeset
214 identities = template_data[u'identities'] = self.host.getSessionData(request, session_iface.ISATSession).identities
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parents:
diff changeset
215
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
216 ## Comments ##
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
217 # if comments are requested, we need to take them
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
218 if show_comments:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
219 yield appendComments(self, items, identities, profile)
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Goffi <goffi@goffi.org>
parents:
diff changeset
220
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
221 ## URLs ##
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
222 # We will fill items_http_uri and tags_http_uri in template_data with suitable urls
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
223 # if we know the profile, we use it instead of service + blog (nicer url)
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
224 if target_profile is None:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
225 blog_base_url_item = self.getPageByName(u'blog_view').getURL(service.full(), node or u'@', u'id')
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
226 blog_base_url_tag = self.getPageByName(u'blog_view').getURL(service.full(), node or u'@', u'tag')
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
227 else:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
228 blog_base_url_item = self.getURLByNames([(u'user', [target_profile]), (u'user_blog', [u'id'])])
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
229 blog_base_url_tag = self.getURLByNames([(u'user', [target_profile]), (u'user_blog', [u'tag'])])
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
230 # we also set the background image if specified by user
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
231 bg_img = yield self.host.bridgeCall(u'asyncGetParamA', u'Background', u'Blog page', u'value', -1, template_data[u'target_profile'])
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
232 if bg_img:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
233 template_data['dynamic_style'] = safe(u"""
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
234 :root {
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
235 --bg-img: url("%s");
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
236 }
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
237 """ % cgi.escape(bg_img, True))
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
238
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
239 template_data[u'items'] = data[u'items'] = items
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
240 if request.args.get('reverse') == ['1']:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
241 template_data[u'items'].items.reverse()
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
242 template_data[u'items_http_uri'] = items_http_uri = {}
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
243 template_data[u'tags_http_uri'] = tags_http_uri = {}
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
244
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
245
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
246 for item in items:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
247 blog_canonical_url = u'/'.join([blog_base_url_item, utils.quote(item.id)])
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
248 if len(blog_canonical_url) > URL_LIMIT_MARK:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
249 blog_url = blog_canonical_url
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
250 else:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
251 # we add text from title or body at the end of URL
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
252 # to make it more human readable
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
253 text = item.title or item.content
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
254 # we change special chars to ascii one, trick found at https://stackoverflow.com/a/3194567
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
255 text = unicodedata.normalize('NFD', text).encode('ascii', 'ignore')
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
256 text = RE_TEXT_URL.sub(u' ', text).lower()
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
257 text = u'-'.join([t for t in text.split() if t and len(t)>=TEXT_WORD_MIN_LENGHT])
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
258 while len(text) > TEXT_MAX_LEN:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
259 if u'-' in text:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
260 text = text.rsplit(u'-', 1)[0]
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
261 else:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
262 text = text[:TEXT_MAX_LEN]
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
263 if text:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
264 blog_url = blog_canonical_url + u'/' + text
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
265 else:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
266 blog_url = blog_canonical_url
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
267
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
268 items_http_uri[item.id] = self.host.getExtBaseURL(request, blog_url)
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
269 for tag in item.tags:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
270 if tag not in tags_http_uri:
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
271 tag_url = u'/'.join([blog_base_url_tag, utils.quote(tag)])
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
272 tags_http_uri[tag] = self.host.getExtBaseURL(request, tag_url)
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
273
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
diff changeset
274 # if True, page should display a comment box
1133
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Goffi <goffi@goffi.org>
parents: 1124
diff changeset
275 template_data[u'allow_commenting'] = data.get(u'allow_commenting', profile_connected)
1077
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parents:
diff changeset
276
880ea673aaff blog: moved blog page from /common to /blog:
Goffi <goffi@goffi.org>
parents:
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277 # last but not least, we add a xmpp: link to the node
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278 uri_args = {u'path': service.full()}
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279 if node:
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280 uri_args[u'node'] = node
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281 if item_id:
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282 uri_args[u'item'] = item_id
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283 template_data[u'xmpp_uri'] = uri.buildXMPPUri(u'pubsub', subtype='microblog', **uri_args)
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284
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285
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286 @defer.inlineCallbacks
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287 def on_data_post(self, request):
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288 profile = self.getProfile(request)
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289 if profile is None:
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290 self.pageError(request, C.HTTP_FORBIDDEN)
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291 type_ = self.getPostedData(request, u'type')
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292 if type_ == u'comment':
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293 service, node, body = self.getPostedData(request, (u'service', u'node', u'body'))
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294
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295 if not body:
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296 self.pageError(request, C.HTTP_BAD_REQUEST)
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297 comment_data = {u"content": body}
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298 try:
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299 yield self.host.bridgeCall(u'mbSend',
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300 service,
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301 node,
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302 data_format.serialise(comment_data),
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303 profile)
1077
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304 except Exception as e:
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305 if u"forbidden" in unicode(e):
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306 self.pageError(request, 401)
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307 else:
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308 raise e
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309 else:
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310 log.warning(_(u"Unhandled data type: {}").format(type_))