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1 <?php |
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2 /** |
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3 * WordPress Export Administration API |
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4 * |
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5 * @package WordPress |
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6 * @subpackage Administration |
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7 */ |
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8 |
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9 /** |
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10 * Version number for the export format. |
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11 * |
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12 * Bump this when something changes that might affect compatibility. |
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13 * |
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14 * @since unknown |
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15 * @var string |
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16 */ |
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17 define('WXR_VERSION', '1.0'); |
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18 |
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19 /** |
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20 * {@internal Missing Short Description}} |
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21 * |
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22 * @since unknown |
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23 * |
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24 * @param unknown_type $author |
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25 */ |
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26 function export_wp($author='') { |
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27 global $wpdb, $post_ids, $post; |
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28 |
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29 do_action('export_wp'); |
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30 |
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31 $filename = 'wordpress.' . date('Y-m-d') . '.xml'; |
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32 |
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33 header('Content-Description: File Transfer'); |
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34 header("Content-Disposition: attachment; filename=$filename"); |
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35 header('Content-Type: text/xml; charset=' . get_option('blog_charset'), true); |
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36 |
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37 $where = ''; |
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38 if ( $author and $author != 'all' ) { |
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39 $author_id = (int) $author; |
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40 $where = $wpdb->prepare(" WHERE post_author = %d ", $author_id); |
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41 } |
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42 |
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43 // grab a snapshot of post IDs, just in case it changes during the export |
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44 $post_ids = $wpdb->get_col("SELECT ID FROM $wpdb->posts $where ORDER BY post_date_gmt ASC"); |
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45 |
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46 $categories = (array) get_categories('get=all'); |
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47 $tags = (array) get_tags('get=all'); |
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48 |
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49 /** |
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50 * {@internal Missing Short Description}} |
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51 * |
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52 * @since unknown |
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53 * |
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54 * @param unknown_type $categories |
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55 */ |
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56 function wxr_missing_parents($categories) { |
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57 if ( !is_array($categories) || empty($categories) ) |
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58 return array(); |
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59 |
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60 foreach ( $categories as $category ) |
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61 $parents[$category->term_id] = $category->parent; |
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62 |
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63 $parents = array_unique(array_diff($parents, array_keys($parents))); |
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64 |
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65 if ( $zero = array_search('0', $parents) ) |
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66 unset($parents[$zero]); |
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67 |
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68 return $parents; |
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69 } |
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70 |
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71 while ( $parents = wxr_missing_parents($categories) ) { |
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72 $found_parents = get_categories("include=" . join(', ', $parents)); |
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73 if ( is_array($found_parents) && count($found_parents) ) |
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74 $categories = array_merge($categories, $found_parents); |
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75 else |
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76 break; |
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77 } |
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78 |
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79 // Put them in order to be inserted with no child going before its parent |
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80 $pass = 0; |
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81 $passes = 1000 + count($categories); |
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82 while ( ( $cat = array_shift($categories) ) && ++$pass < $passes ) { |
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83 if ( $cat->parent == 0 || isset($cats[$cat->parent]) ) { |
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84 $cats[$cat->term_id] = $cat; |
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85 } else { |
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86 $categories[] = $cat; |
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87 } |
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88 } |
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89 unset($categories); |
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90 |
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91 /** |
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92 * Place string in CDATA tag. |
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93 * |
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94 * @since unknown |
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95 * |
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96 * @param string $str String to place in XML CDATA tag. |
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97 */ |
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98 function wxr_cdata($str) { |
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99 if ( seems_utf8($str) == false ) |
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100 $str = utf8_encode($str); |
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101 |
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102 // $str = ent2ncr(esc_html($str)); |
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103 |
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104 $str = "<![CDATA[$str" . ( ( substr($str, -1) == ']' ) ? ' ' : '') . "]]>"; |
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105 |
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106 return $str; |
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107 } |
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108 |
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109 /** |
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110 * {@internal Missing Short Description}} |
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111 * |
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112 * @since unknown |
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113 * |
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114 * @return string Site URL. |
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115 */ |
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116 function wxr_site_url() { |
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117 global $current_site; |
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118 |
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119 // mu: the base url |
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120 if ( isset($current_site->domain) ) { |
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121 return 'http://'.$current_site->domain.$current_site->path; |
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122 } |
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123 // wp: the blog url |
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124 else { |
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125 return get_bloginfo_rss('url'); |
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126 } |
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127 } |
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128 |
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129 /** |
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130 * {@internal Missing Short Description}} |
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131 * |
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132 * @since unknown |
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133 * |
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134 * @param object $c Category Object |
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135 */ |
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136 function wxr_cat_name($c) { |
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137 if ( empty($c->name) ) |
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138 return; |
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139 |
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140 echo '<wp:cat_name>' . wxr_cdata($c->name) . '</wp:cat_name>'; |
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141 } |
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142 |
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143 /** |
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144 * {@internal Missing Short Description}} |
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145 * |
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146 * @since unknown |
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147 * |
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148 * @param object $c Category Object |
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149 */ |
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150 function wxr_category_description($c) { |
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151 if ( empty($c->description) ) |
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152 return; |
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153 |
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154 echo '<wp:category_description>' . wxr_cdata($c->description) . '</wp:category_description>'; |
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155 } |
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156 |
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157 /** |
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158 * {@internal Missing Short Description}} |
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159 * |
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160 * @since unknown |
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161 * |
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162 * @param object $t Tag Object |
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163 */ |
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164 function wxr_tag_name($t) { |
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165 if ( empty($t->name) ) |
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166 return; |
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167 |
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168 echo '<wp:tag_name>' . wxr_cdata($t->name) . '</wp:tag_name>'; |
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169 } |
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170 |
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171 /** |
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172 * {@internal Missing Short Description}} |
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173 * |
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174 * @since unknown |
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175 * |
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176 * @param object $t Tag Object |
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177 */ |
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178 function wxr_tag_description($t) { |
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179 if ( empty($t->description) ) |
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180 return; |
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181 |
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182 echo '<wp:tag_description>' . wxr_cdata($t->description) . '</wp:tag_description>'; |
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183 } |
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184 |
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185 /** |
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186 * {@internal Missing Short Description}} |
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187 * |
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188 * @since unknown |
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189 */ |
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190 function wxr_post_taxonomy() { |
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191 $categories = get_the_category(); |
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192 $tags = get_the_tags(); |
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193 $the_list = ''; |
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194 $filter = 'rss'; |
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195 |
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196 if ( !empty($categories) ) foreach ( (array) $categories as $category ) { |
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197 $cat_name = sanitize_term_field('name', $category->name, $category->term_id, 'category', $filter); |
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198 // for backwards compatibility |
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199 $the_list .= "\n\t\t<category><![CDATA[$cat_name]]></category>\n"; |
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200 // forwards compatibility: use a unique identifier for each cat to avoid clashes |
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201 // http://trac.wordpress.org/ticket/5447 |
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202 $the_list .= "\n\t\t<category domain=\"category\" nicename=\"{$category->slug}\"><![CDATA[$cat_name]]></category>\n"; |
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203 } |
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204 |
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205 if ( !empty($tags) ) foreach ( (array) $tags as $tag ) { |
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206 $tag_name = sanitize_term_field('name', $tag->name, $tag->term_id, 'post_tag', $filter); |
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207 $the_list .= "\n\t\t<category domain=\"tag\"><![CDATA[$tag_name]]></category>\n"; |
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208 // forwards compatibility as above |
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209 $the_list .= "\n\t\t<category domain=\"tag\" nicename=\"{$tag->slug}\"><![CDATA[$tag_name]]></category>\n"; |
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210 } |
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211 |
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212 echo $the_list; |
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213 } |
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214 |
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215 echo '<?xml version="1.0" encoding="' . get_bloginfo('charset') . '"?' . ">\n"; |
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216 |
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217 ?> |
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218 <!-- This is a WordPress eXtended RSS file generated by WordPress as an export of your blog. --> |
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219 <!-- It contains information about your blog's posts, comments, and categories. --> |
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220 <!-- You may use this file to transfer that content from one site to another. --> |
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221 <!-- This file is not intended to serve as a complete backup of your blog. --> |
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222 |
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223 <!-- To import this information into a WordPress blog follow these steps. --> |
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224 <!-- 1. Log into that blog as an administrator. --> |
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225 <!-- 2. Go to Tools: Import in the blog's admin panels (or Manage: Import in older versions of WordPress). --> |
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226 <!-- 3. Choose "WordPress" from the list. --> |
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227 <!-- 4. Upload this file using the form provided on that page. --> |
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228 <!-- 5. You will first be asked to map the authors in this export file to users --> |
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229 <!-- on the blog. For each author, you may choose to map to an --> |
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230 <!-- existing user on the blog or to create a new user --> |
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231 <!-- 6. WordPress will then import each of the posts, comments, and categories --> |
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232 <!-- contained in this file into your blog --> |
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233 |
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234 <?php the_generator('export');?> |
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235 <rss version="2.0" |
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236 xmlns:excerpt="http://wordpress.org/export/<?php echo WXR_VERSION; ?>/excerpt/" |
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237 xmlns:content="http://purl.org/rss/1.0/modules/content/" |
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238 xmlns:wfw="http://wellformedweb.org/CommentAPI/" |
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239 xmlns:dc="http://purl.org/dc/elements/1.1/" |
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240 xmlns:wp="http://wordpress.org/export/<?php echo WXR_VERSION; ?>/" |
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241 > |
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242 |
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243 <channel> |
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244 <title><?php bloginfo_rss('name'); ?></title> |
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245 <link><?php bloginfo_rss('url') ?></link> |
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246 <description><?php bloginfo_rss("description") ?></description> |
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247 <pubDate><?php echo mysql2date('D, d M Y H:i:s +0000', get_lastpostmodified('GMT'), false); ?></pubDate> |
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248 <generator>http://wordpress.org/?v=<?php bloginfo_rss('version'); ?></generator> |
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249 <language><?php echo get_option('rss_language'); ?></language> |
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250 <wp:wxr_version><?php echo WXR_VERSION; ?></wp:wxr_version> |
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251 <wp:base_site_url><?php echo wxr_site_url(); ?></wp:base_site_url> |
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252 <wp:base_blog_url><?php bloginfo_rss('url'); ?></wp:base_blog_url> |
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253 <?php if ( $cats ) : foreach ( $cats as $c ) : ?> |
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254 <wp:category><wp:category_nicename><?php echo $c->slug; ?></wp:category_nicename><wp:category_parent><?php echo $c->parent ? $cats[$c->parent]->name : ''; ?></wp:category_parent><?php wxr_cat_name($c); ?><?php wxr_category_description($c); ?></wp:category> |
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255 <?php endforeach; endif; ?> |
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256 <?php if ( $tags ) : foreach ( $tags as $t ) : ?> |
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257 <wp:tag><wp:tag_slug><?php echo $t->slug; ?></wp:tag_slug><?php wxr_tag_name($t); ?><?php wxr_tag_description($t); ?></wp:tag> |
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258 <?php endforeach; endif; ?> |
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259 <?php do_action('rss2_head'); ?> |
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260 <?php if ($post_ids) { |
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261 global $wp_query; |
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262 $wp_query->in_the_loop = true; // Fake being in the loop. |
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263 // fetch 20 posts at a time rather than loading the entire table into memory |
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264 while ( $next_posts = array_splice($post_ids, 0, 20) ) { |
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265 $where = "WHERE ID IN (".join(',', $next_posts).")"; |
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266 $posts = $wpdb->get_results("SELECT * FROM $wpdb->posts $where ORDER BY post_date_gmt ASC"); |
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267 foreach ($posts as $post) { |
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268 // Don't export revisions. They bloat the export. |
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269 if ( 'revision' == $post->post_type ) |
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270 continue; |
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271 setup_postdata($post); ?> |
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272 <item> |
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273 <title><?php echo apply_filters('the_title_rss', $post->post_title); ?></title> |
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274 <link><?php the_permalink_rss() ?></link> |
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275 <pubDate><?php echo mysql2date('D, d M Y H:i:s +0000', get_post_time('Y-m-d H:i:s', true), false); ?></pubDate> |
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276 <dc:creator><?php echo wxr_cdata(get_the_author()); ?></dc:creator> |
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277 <?php wxr_post_taxonomy() ?> |
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278 |
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279 <guid isPermaLink="false"><?php the_guid(); ?></guid> |
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280 <description></description> |
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281 <content:encoded><?php echo wxr_cdata( apply_filters('the_content_export', $post->post_content) ); ?></content:encoded> |
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282 <excerpt:encoded><?php echo wxr_cdata( apply_filters('the_excerpt_export', $post->post_excerpt) ); ?></excerpt:encoded> |
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283 <wp:post_id><?php echo $post->ID; ?></wp:post_id> |
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284 <wp:post_date><?php echo $post->post_date; ?></wp:post_date> |
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285 <wp:post_date_gmt><?php echo $post->post_date_gmt; ?></wp:post_date_gmt> |
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286 <wp:comment_status><?php echo $post->comment_status; ?></wp:comment_status> |
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287 <wp:ping_status><?php echo $post->ping_status; ?></wp:ping_status> |
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288 <wp:post_name><?php echo $post->post_name; ?></wp:post_name> |
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289 <wp:status><?php echo $post->post_status; ?></wp:status> |
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290 <wp:post_parent><?php echo $post->post_parent; ?></wp:post_parent> |
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291 <wp:menu_order><?php echo $post->menu_order; ?></wp:menu_order> |
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292 <wp:post_type><?php echo $post->post_type; ?></wp:post_type> |
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293 <wp:post_password><?php echo $post->post_password; ?></wp:post_password> |
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294 <?php |
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295 if ($post->post_type == 'attachment') { ?> |
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296 <wp:attachment_url><?php echo wp_get_attachment_url($post->ID); ?></wp:attachment_url> |
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297 <?php } ?> |
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298 <?php |
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299 $postmeta = $wpdb->get_results( $wpdb->prepare("SELECT * FROM $wpdb->postmeta WHERE post_id = %d", $post->ID) ); |
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300 if ( $postmeta ) { |
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301 ?> |
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302 <?php foreach( $postmeta as $meta ) { ?> |
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303 <wp:postmeta> |
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304 <wp:meta_key><?php echo $meta->meta_key; ?></wp:meta_key> |
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305 <wp:meta_value><?Php echo $meta->meta_value; ?></wp:meta_value> |
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306 </wp:postmeta> |
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307 <?php } ?> |
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308 <?php } ?> |
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309 <?php |
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310 $comments = $wpdb->get_results( $wpdb->prepare("SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d", $post->ID) ); |
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311 if ( $comments ) { foreach ( $comments as $c ) { ?> |
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312 <wp:comment> |
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313 <wp:comment_id><?php echo $c->comment_ID; ?></wp:comment_id> |
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314 <wp:comment_author><?php echo wxr_cdata($c->comment_author); ?></wp:comment_author> |
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315 <wp:comment_author_email><?php echo $c->comment_author_email; ?></wp:comment_author_email> |
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316 <wp:comment_author_url><?php echo $c->comment_author_url; ?></wp:comment_author_url> |
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317 <wp:comment_author_IP><?php echo $c->comment_author_IP; ?></wp:comment_author_IP> |
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318 <wp:comment_date><?php echo $c->comment_date; ?></wp:comment_date> |
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319 <wp:comment_date_gmt><?php echo $c->comment_date_gmt; ?></wp:comment_date_gmt> |
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320 <wp:comment_content><?php echo wxr_cdata($c->comment_content) ?></wp:comment_content> |
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321 <wp:comment_approved><?php echo $c->comment_approved; ?></wp:comment_approved> |
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322 <wp:comment_type><?php echo $c->comment_type; ?></wp:comment_type> |
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323 <wp:comment_parent><?php echo $c->comment_parent; ?></wp:comment_parent> |
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324 <wp:comment_user_id><?php echo $c->user_id; ?></wp:comment_user_id> |
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325 </wp:comment> |
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326 <?php } } ?> |
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327 </item> |
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328 <?php } } } ?> |
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329 </channel> |
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330 </rss> |
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331 <?php |
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332 } |
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333 |
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334 ?> |