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1 | <?php |
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2 | /** |
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3 | * XML feed export |
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4 | * |
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5 | * @license GPL 2 (http://www.gnu.org/licenses/gpl.html) |
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6 | * @author Andreas Gohr <[email protected]> |
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7 | * |
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8 | * @global array $conf |
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9 | * @global Input $INPUT |
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10 | */ |
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11 | |||
12 | use dokuwiki\ChangeLog\MediaChangeLog; |
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13 | use dokuwiki\ChangeLog\PageChangeLog; |
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This use statement conflicts with another class in this namespace,
PageChangeLog .
Let’s assume that you have a directory layout like this: .
|-- OtherDir
| |-- Bar.php
| `-- Foo.php
`-- SomeDir
`-- Foo.php
and let’s assume the following content of // Bar.php
namespace OtherDir;
use SomeDir\Foo; // This now conflicts the class OtherDir\Foo
If both files PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as // Bar.php
namespace OtherDir;
use SomeDir\Foo as SomeDirFoo; // There is no conflict anymore.
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14 | use dokuwiki\Extension\AuthPlugin; |
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15 | use dokuwiki\Extension\Event; |
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16 | |||
17 | if(!defined('DOKU_INC')) define('DOKU_INC', dirname(__FILE__).'/'); |
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18 | require_once(DOKU_INC.'inc/init.php'); |
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19 | |||
20 | //close session |
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21 | session_write_close(); |
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22 | |||
23 | //feed disabled? |
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24 | if(!actionOK('rss')) { |
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25 | http_status(404); |
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26 | echo '<error>RSS feed is disabled.</error>'; |
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27 | exit; |
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28 | } |
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29 | |||
30 | // get params |
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31 | $opt = rss_parseOptions(); |
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32 | |||
33 | // the feed is dynamic - we need a cache for each combo |
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34 | // (but most people just use the default feed so it's still effective) |
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35 | $key = join('', array_values($opt)).'$'.$_SERVER['REMOTE_USER'].'$'.$_SERVER['HTTP_HOST'].$_SERVER['SERVER_PORT']; |
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36 | $cache = new cache($key, '.feed'); |
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37 | |||
38 | // prepare cache depends |
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39 | $depends['files'] = getConfigFiles('main'); |
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40 | $depends['age'] = $conf['rss_update']; |
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41 | $depends['purge'] = $INPUT->bool('purge'); |
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42 | |||
43 | // check cacheage and deliver if nothing has changed since last |
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44 | // time or the update interval has not passed, also handles conditional requests |
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45 | header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); |
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46 | header('Pragma: public'); |
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47 | header('Content-Type: application/xml; charset=utf-8'); |
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48 | header('X-Robots-Tag: noindex'); |
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49 | if($cache->useCache($depends)) { |
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50 | http_conditionalRequest($cache->_time); |
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51 | if($conf['allowdebug']) header("X-CacheUsed: $cache->cache"); |
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52 | print $cache->retrieveCache(); |
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53 | exit; |
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54 | } else { |
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55 | http_conditionalRequest(time()); |
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56 | } |
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57 | |||
58 | // create new feed |
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59 | $rss = new UniversalFeedCreator(); |
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60 | $rss->title = $conf['title'].(($opt['namespace']) ? ' '.$opt['namespace'] : ''); |
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61 | $rss->link = DOKU_URL; |
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62 | $rss->syndicationURL = DOKU_URL.'feed.php'; |
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63 | $rss->cssStyleSheet = DOKU_URL.'lib/exe/css.php?s=feed'; |
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64 | |||
65 | $image = new FeedImage(); |
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66 | $image->title = $conf['title']; |
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67 | $image->url = tpl_getMediaFile(array(':wiki:favicon.ico', ':favicon.ico', 'images/favicon.ico'), true); |
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68 | $image->link = DOKU_URL; |
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69 | $rss->image = $image; |
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70 | |||
71 | $data = null; |
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72 | $modes = array( |
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73 | 'list' => 'rssListNamespace', |
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74 | 'search' => 'rssSearch', |
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75 | 'recent' => 'rssRecentChanges' |
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76 | ); |
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77 | if(isset($modes[$opt['feed_mode']])) { |
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78 | $data = $modes[$opt['feed_mode']]($opt); |
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79 | } else { |
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80 | $eventData = array( |
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81 | 'opt' => &$opt, |
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82 | 'data' => &$data, |
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83 | ); |
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84 | $event = new Event('FEED_MODE_UNKNOWN', $eventData); |
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85 | if($event->advise_before(true)) { |
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86 | echo sprintf('<error>Unknown feed mode %s</error>', hsc($opt['feed_mode'])); |
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87 | exit; |
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88 | } |
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89 | $event->advise_after(); |
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90 | } |
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91 | |||
92 | rss_buildItems($rss, $data, $opt); |
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93 | $feed = $rss->createFeed($opt['feed_type']); |
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94 | |||
95 | // save cachefile |
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96 | $cache->storeCache($feed); |
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97 | |||
98 | // finally deliver |
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99 | print $feed; |
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100 | |||
101 | // ---------------------------------------------------------------- // |
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102 | |||
103 | /** |
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104 | * Get URL parameters and config options and return an initialized option array |
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105 | * |
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106 | * @author Andreas Gohr <[email protected]> |
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107 | */ |
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108 | function rss_parseOptions() { |
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109 | global $conf; |
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110 | global $INPUT; |
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111 | |||
112 | $opt = array(); |
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113 | |||
114 | foreach(array( |
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115 | // Basic feed properties |
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116 | // Plugins may probably want to add new values to these |
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117 | // properties for implementing own feeds |
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118 | |||
119 | // One of: list, search, recent |
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120 | 'feed_mode' => array('str', 'mode', 'recent'), |
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121 | // One of: diff, page, rev, current |
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122 | 'link_to' => array('str', 'linkto', $conf['rss_linkto']), |
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123 | // One of: abstract, diff, htmldiff, html |
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124 | 'item_content' => array('str', 'content', $conf['rss_content']), |
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125 | |||
126 | // Special feed properties |
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127 | // These are only used by certain feed_modes |
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128 | |||
129 | // String, used for feed title, in list and rc mode |
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130 | 'namespace' => array('str', 'ns', null), |
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131 | // Positive integer, only used in rc mode |
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132 | 'items' => array('int', 'num', $conf['recent']), |
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133 | // Boolean, only used in rc mode |
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134 | 'show_minor' => array('bool', 'minor', false), |
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135 | // String, only used in list mode |
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136 | 'sort' => array('str', 'sort', 'natural'), |
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137 | // String, only used in search mode |
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138 | 'search_query' => array('str', 'q', null), |
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139 | // One of: pages, media, both |
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140 | 'content_type' => array('str', 'view', $conf['rss_media']) |
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141 | |||
142 | ) as $name => $val) { |
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143 | $opt[$name] = $INPUT->{$val[0]}($val[1], $val[2], true); |
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144 | } |
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145 | |||
146 | $opt['items'] = max(0, (int) $opt['items']); |
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147 | $opt['show_minor'] = (bool) $opt['show_minor']; |
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148 | $opt['sort'] = valid_input_set('sort', array('default' => 'natural', 'date'), $opt); |
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149 | |||
150 | $opt['guardmail'] = ($conf['mailguard'] != '' && $conf['mailguard'] != 'none'); |
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151 | |||
152 | $type = $INPUT->valid( |
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153 | 'type', |
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154 | array( 'rss', 'rss2', 'atom', 'atom1', 'rss1'), |
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155 | $conf['rss_type'] |
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156 | ); |
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157 | switch($type) { |
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158 | case 'rss': |
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159 | $opt['feed_type'] = 'RSS0.91'; |
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160 | $opt['mime_type'] = 'text/xml'; |
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161 | break; |
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162 | case 'rss2': |
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163 | $opt['feed_type'] = 'RSS2.0'; |
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164 | $opt['mime_type'] = 'text/xml'; |
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165 | break; |
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166 | case 'atom': |
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167 | $opt['feed_type'] = 'ATOM0.3'; |
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168 | $opt['mime_type'] = 'application/xml'; |
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169 | break; |
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170 | case 'atom1': |
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171 | $opt['feed_type'] = 'ATOM1.0'; |
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172 | $opt['mime_type'] = 'application/atom+xml'; |
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173 | break; |
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174 | default: |
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175 | $opt['feed_type'] = 'RSS1.0'; |
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176 | $opt['mime_type'] = 'application/xml'; |
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177 | } |
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178 | |||
179 | $eventData = array( |
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180 | 'opt' => &$opt, |
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181 | ); |
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182 | Event::createAndTrigger('FEED_OPTS_POSTPROCESS', $eventData); |
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183 | return $opt; |
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184 | } |
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185 | |||
186 | /** |
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187 | * Add recent changed pages to a feed object |
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188 | * |
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189 | * @author Andreas Gohr <[email protected]> |
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190 | * @param FeedCreator $rss the FeedCreator Object |
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191 | * @param array $data the items to add |
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192 | * @param array $opt the feed options |
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193 | */ |
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194 | function rss_buildItems(&$rss, &$data, $opt) { |
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195 | global $conf; |
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196 | global $lang; |
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197 | /* @var AuthPlugin $auth */ |
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198 | global $auth; |
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199 | |||
200 | $eventData = array( |
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201 | 'rss' => &$rss, |
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202 | 'data' => &$data, |
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203 | 'opt' => &$opt, |
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204 | ); |
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205 | $event = new Event('FEED_DATA_PROCESS', $eventData); |
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206 | if($event->advise_before(false)) { |
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207 | foreach($data as $ditem) { |
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208 | if(!is_array($ditem)) { |
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209 | // not an array? then only a list of IDs was given |
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210 | $ditem = array('id' => $ditem); |
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211 | } |
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212 | |||
213 | $item = new FeedItem(); |
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214 | $id = $ditem['id']; |
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215 | if(!$ditem['media']) { |
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216 | $meta = p_get_metadata($id); |
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217 | } else { |
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218 | $meta = array(); |
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219 | } |
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220 | |||
221 | // add date |
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222 | if($ditem['date']) { |
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223 | $date = $ditem['date']; |
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224 | } elseif ($ditem['media']) { |
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225 | $date = @filemtime(mediaFN($id)); |
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226 | } elseif (file_exists(wikiFN($id))) { |
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227 | $date = @filemtime(wikiFN($id)); |
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228 | } elseif($meta['date']['modified']) { |
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229 | $date = $meta['date']['modified']; |
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230 | } else { |
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231 | $date = 0; |
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232 | } |
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233 | if($date) $item->date = date('r', $date); |
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234 | |||
235 | // add title |
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236 | if($conf['useheading'] && $meta['title']) { |
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237 | $item->title = $meta['title']; |
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238 | } else { |
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239 | $item->title = $ditem['id']; |
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240 | } |
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241 | if($conf['rss_show_summary'] && !empty($ditem['sum'])) { |
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242 | $item->title .= ' - '.strip_tags($ditem['sum']); |
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243 | } |
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244 | |||
245 | // add item link |
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246 | switch($opt['link_to']) { |
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247 | case 'page': |
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248 | if($ditem['media']) { |
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249 | $item->link = media_managerURL( |
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250 | array( |
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251 | 'image' => $id, |
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252 | 'ns' => getNS($id), |
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253 | 'rev' => $date |
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254 | ), '&', true |
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255 | ); |
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256 | } else { |
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257 | $item->link = wl($id, 'rev='.$date, true, '&'); |
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258 | } |
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259 | break; |
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260 | case 'rev': |
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261 | if($ditem['media']) { |
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262 | $item->link = media_managerURL( |
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263 | array( |
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264 | 'image' => $id, |
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265 | 'ns' => getNS($id), |
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266 | 'rev' => $date, |
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267 | 'tab_details' => 'history' |
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268 | ), '&', true |
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269 | ); |
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270 | } else { |
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271 | $item->link = wl($id, 'do=revisions&rev='.$date, true, '&'); |
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272 | } |
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273 | break; |
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274 | case 'current': |
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275 | if($ditem['media']) { |
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276 | $item->link = media_managerURL( |
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277 | array( |
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278 | 'image' => $id, |
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279 | 'ns' => getNS($id) |
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280 | ), '&', true |
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281 | ); |
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282 | } else { |
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283 | $item->link = wl($id, '', true, '&'); |
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284 | } |
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285 | break; |
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286 | case 'diff': |
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287 | default: |
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288 | if($ditem['media']) { |
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289 | $item->link = media_managerURL( |
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290 | array( |
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291 | 'image' => $id, |
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292 | 'ns' => getNS($id), |
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293 | 'rev' => $date, |
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294 | 'tab_details' => 'history', |
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295 | 'mediado' => 'diff' |
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296 | ), '&', true |
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297 | ); |
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298 | } else { |
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299 | $item->link = wl($id, 'rev='.$date.'&do=diff', true, '&'); |
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300 | } |
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301 | } |
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302 | |||
303 | // add item content |
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304 | switch($opt['item_content']) { |
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305 | case 'diff': |
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306 | case 'htmldiff': |
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307 | if($ditem['media']) { |
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308 | $medialog = new MediaChangeLog($id); |
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309 | $revs = $medialog->getRevisions(0, 1); |
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310 | $rev = $revs[0]; |
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311 | $src_r = ''; |
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312 | $src_l = ''; |
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313 | |||
314 | if($size = media_image_preview_size($id, '', new JpegMeta(mediaFN($id)), 300)) { |
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315 | $more = 'w='.$size[0].'&h='.$size[1].'&t='.@filemtime(mediaFN($id)); |
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316 | $src_r = ml($id, $more, true, '&', true); |
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317 | } |
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318 | if($rev && $size = media_image_preview_size($id, $rev, new JpegMeta(mediaFN($id, $rev)), 300)) { |
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319 | $more = 'rev='.$rev.'&w='.$size[0].'&h='.$size[1]; |
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320 | $src_l = ml($id, $more, true, '&', true); |
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321 | } |
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322 | $content = ''; |
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323 | if($src_r) { |
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324 | $content = '<table>'; |
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325 | $content .= '<tr><th width="50%">'.$rev.'</th>'; |
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326 | $content .= '<th width="50%">'.$lang['current'].'</th></tr>'; |
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327 | $content .= '<tr align="center"><td><img src="'.$src_l.'" alt="" /></td><td>'; |
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328 | $content .= '<img src="'.$src_r.'" alt="'.$id.'" /></td></tr>'; |
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329 | $content .= '</table>'; |
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330 | } |
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331 | |||
332 | } else { |
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333 | require_once(DOKU_INC.'inc/DifferenceEngine.php'); |
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334 | $pagelog = new PageChangeLog($id); |
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335 | $revs = $pagelog->getRevisions(0, 1); |
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336 | $rev = $revs[0]; |
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337 | |||
338 | if($rev) { |
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339 | $df = new Diff(explode("\n", rawWiki($id, $rev)), |
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340 | explode("\n", rawWiki($id, ''))); |
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341 | } else { |
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342 | $df = new Diff(array(''), |
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343 | explode("\n", rawWiki($id, ''))); |
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344 | } |
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345 | |||
346 | if($opt['item_content'] == 'htmldiff') { |
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347 | // note: no need to escape diff output, TableDiffFormatter provides 'safe' html |
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348 | $tdf = new TableDiffFormatter(); |
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349 | $content = '<table>'; |
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350 | $content .= '<tr><th colspan="2" width="50%">'.$rev.'</th>'; |
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351 | $content .= '<th colspan="2" width="50%">'.$lang['current'].'</th></tr>'; |
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352 | $content .= $tdf->format($df); |
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353 | $content .= '</table>'; |
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354 | } else { |
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355 | // note: diff output must be escaped, UnifiedDiffFormatter provides plain text |
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356 | $udf = new UnifiedDiffFormatter(); |
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357 | $content = "<pre>\n".hsc($udf->format($df))."\n</pre>"; |
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358 | } |
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359 | } |
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360 | break; |
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361 | case 'html': |
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362 | if($ditem['media']) { |
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363 | if($size = media_image_preview_size($id, '', new JpegMeta(mediaFN($id)))) { |
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364 | $more = 'w='.$size[0].'&h='.$size[1].'&t='.@filemtime(mediaFN($id)); |
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365 | $src = ml($id, $more, true, '&', true); |
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366 | $content = '<img src="'.$src.'" alt="'.$id.'" />'; |
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367 | } else { |
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368 | $content = ''; |
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369 | } |
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370 | } else { |
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371 | if (@filemtime(wikiFN($id)) === $date) { |
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372 | $content = p_wiki_xhtml($id, '', false); |
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373 | } else { |
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374 | $content = p_wiki_xhtml($id, $date, false); |
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375 | } |
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376 | // no TOC in feeds |
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377 | $content = preg_replace('/(<!-- TOC START -->).*(<!-- TOC END -->)/s', '', $content); |
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378 | |||
379 | // add alignment for images |
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380 | $content = preg_replace('/(<img .*?class="medialeft")/s', '\\1 align="left"', $content); |
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381 | $content = preg_replace('/(<img .*?class="mediaright")/s', '\\1 align="right"', $content); |
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382 | |||
383 | // make URLs work when canonical is not set, regexp instead of rerendering! |
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384 | if(!$conf['canonical']) { |
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385 | $base = preg_quote(DOKU_REL, '/'); |
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386 | $content = preg_replace('/(<a href|<img src)="('.$base.')/s', '$1="'.DOKU_URL, $content); |
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387 | } |
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388 | } |
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389 | |||
390 | break; |
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391 | case 'abstract': |
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392 | default: |
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393 | if($ditem['media']) { |
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394 | if($size = media_image_preview_size($id, '', new JpegMeta(mediaFN($id)))) { |
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395 | $more = 'w='.$size[0].'&h='.$size[1].'&t='.@filemtime(mediaFN($id)); |
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396 | $src = ml($id, $more, true, '&', true); |
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397 | $content = '<img src="'.$src.'" alt="'.$id.'" />'; |
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398 | } else { |
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399 | $content = ''; |
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400 | } |
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401 | } else { |
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402 | $content = $meta['description']['abstract']; |
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403 | } |
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404 | } |
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405 | $item->description = $content; //FIXME a plugin hook here could be senseful |
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406 | |||
407 | // add user |
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408 | # FIXME should the user be pulled from metadata as well? |
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409 | $user = @$ditem['user']; // the @ spares time repeating lookup |
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410 | if(blank($user)) { |
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411 | $item->author = 'Anonymous'; |
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412 | $item->authorEmail = '[email protected]'; |
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413 | } else { |
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414 | $item->author = $user; |
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415 | $item->authorEmail = $user . '@undisclosed.example.com'; |
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416 | |||
417 | // get real user name if configured |
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418 | if($conf['useacl'] && $auth) { |
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419 | $userInfo = $auth->getUserData($user); |
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420 | if($userInfo) { |
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421 | switch($conf['showuseras']) { |
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422 | case 'username': |
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423 | case 'username_link': |
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424 | $item->author = $userInfo['name']; |
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425 | break; |
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426 | default: |
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427 | $item->author = $user; |
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428 | break; |
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429 | } |
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430 | } else { |
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431 | $item->author = $user; |
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432 | } |
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433 | } |
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434 | } |
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435 | |||
436 | // add category |
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437 | if(isset($meta['subject'])) { |
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438 | $item->category = $meta['subject']; |
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439 | } else { |
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440 | $cat = getNS($id); |
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441 | if($cat) $item->category = $cat; |
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442 | } |
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443 | |||
444 | // finally add the item to the feed object, after handing it to registered plugins |
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445 | $evdata = array( |
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446 | 'item' => &$item, |
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447 | 'opt' => &$opt, |
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448 | 'ditem' => &$ditem, |
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449 | 'rss' => &$rss |
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450 | ); |
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451 | $evt = new Event('FEED_ITEM_ADD', $evdata); |
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452 | if($evt->advise_before()) { |
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453 | $rss->addItem($item); |
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454 | } |
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455 | $evt->advise_after(); // for completeness |
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456 | } |
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457 | } |
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458 | $event->advise_after(); |
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459 | } |
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460 | |||
461 | /** |
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462 | * Add recent changed pages to the feed object |
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463 | * |
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464 | * @author Andreas Gohr <[email protected]> |
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465 | */ |
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466 | function rssRecentChanges($opt) { |
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467 | global $conf; |
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468 | $flags = RECENTS_SKIP_DELETED; |
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469 | if(!$opt['show_minor']) $flags += RECENTS_SKIP_MINORS; |
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470 | if($opt['content_type'] == 'media' && $conf['mediarevisions']) $flags += RECENTS_MEDIA_CHANGES; |
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471 | if($opt['content_type'] == 'both' && $conf['mediarevisions']) $flags += RECENTS_MEDIA_PAGES_MIXED; |
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472 | |||
473 | $recents = getRecents(0, $opt['items'], $opt['namespace'], $flags); |
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474 | return $recents; |
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475 | } |
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476 | |||
477 | /** |
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478 | * Add all pages of a namespace to the feed object |
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479 | * |
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480 | * @author Andreas Gohr <[email protected]> |
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481 | */ |
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482 | function rssListNamespace($opt) { |
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483 | require_once(DOKU_INC.'inc/search.php'); |
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484 | global $conf; |
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485 | |||
486 | $ns = ':'.cleanID($opt['namespace']); |
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487 | $ns = utf8_encodeFN(str_replace(':', '/', $ns)); |
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488 | |||
489 | $data = array(); |
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490 | $search_opts = array( |
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491 | 'depth' => 1, |
||
492 | 'pagesonly' => true, |
||
493 | 'listfiles' => true |
||
494 | ); |
||
495 | search($data, $conf['datadir'], 'search_universal', $search_opts, $ns, $lvl = 1, $opt['sort']); |
||
496 | |||
497 | return $data; |
||
498 | } |
||
499 | |||
500 | /** |
||
501 | * Add the result of a full text search to the feed object |
||
502 | * |
||
503 | * @author Andreas Gohr <[email protected]> |
||
504 | */ |
||
505 | function rssSearch($opt) { |
||
506 | if(!$opt['search_query']) return array(); |
||
507 | |||
508 | require_once(DOKU_INC.'inc/fulltext.php'); |
||
509 | $data = ft_pageSearch($opt['search_query'], $poswords); |
||
510 | $data = array_keys($data); |
||
511 | |||
512 | return $data; |
||
513 | } |
||
514 | |||
515 | //Setup VIM: ex: et ts=4 : |
||
516 |
Let’s assume that you have a directory layout like this:
and let’s assume the following content of
Bar.php
:If both files
OtherDir/Foo.php
andSomeDir/Foo.php
are loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.php
However, as
OtherDir/Foo.php
does not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php
, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: