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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 2.5.0 |
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15 */ |
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16 define( 'WXR_VERSION', '1.2' ); |
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17 |
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18 /** |
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19 * Generates the WXR export file for download |
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20 * |
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21 * @since 2.1.0 |
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22 * |
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23 * @param array $args Filters defining what should be included in the export |
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24 */ |
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25 function export_wp( $args = array() ) { |
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26 global $wpdb, $post; |
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27 |
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28 $defaults = array( 'content' => 'all', 'author' => false, 'category' => false, |
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29 'start_date' => false, 'end_date' => false, 'status' => false, |
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30 ); |
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31 $args = wp_parse_args( $args, $defaults ); |
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32 |
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33 do_action( 'export_wp' ); |
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34 |
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35 $sitename = sanitize_key( get_bloginfo( 'name' ) ); |
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36 if ( ! empty($sitename) ) $sitename .= '.'; |
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37 $filename = $sitename . 'wordpress.' . date( 'Y-m-d' ) . '.xml'; |
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38 |
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39 header( 'Content-Description: File Transfer' ); |
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40 header( 'Content-Disposition: attachment; filename=' . $filename ); |
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41 header( 'Content-Type: text/xml; charset=' . get_option( 'blog_charset' ), true ); |
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42 |
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43 if ( 'all' != $args['content'] && post_type_exists( $args['content'] ) ) { |
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44 $ptype = get_post_type_object( $args['content'] ); |
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45 if ( ! $ptype->can_export ) |
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46 $args['content'] = 'post'; |
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47 |
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48 $where = $wpdb->prepare( "{$wpdb->posts}.post_type = %s", $args['content'] ); |
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49 } else { |
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50 $post_types = get_post_types( array( 'can_export' => true ) ); |
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51 $esses = array_fill( 0, count($post_types), '%s' ); |
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52 $where = $wpdb->prepare( "{$wpdb->posts}.post_type IN (" . implode( ',', $esses ) . ')', $post_types ); |
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53 } |
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54 |
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55 if ( $args['status'] && ( 'post' == $args['content'] || 'page' == $args['content'] ) ) |
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56 $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_status = %s", $args['status'] ); |
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57 else |
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58 $where .= " AND {$wpdb->posts}.post_status != 'auto-draft'"; |
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59 |
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60 $join = ''; |
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61 if ( $args['category'] && 'post' == $args['content'] ) { |
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62 if ( $term = term_exists( $args['category'], 'category' ) ) { |
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63 $join = "INNER JOIN {$wpdb->term_relationships} ON ({$wpdb->posts}.ID = {$wpdb->term_relationships}.object_id)"; |
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64 $where .= $wpdb->prepare( " AND {$wpdb->term_relationships}.term_taxonomy_id = %d", $term['term_taxonomy_id'] ); |
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65 } |
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66 } |
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67 |
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68 if ( 'post' == $args['content'] || 'page' == $args['content'] ) { |
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69 if ( $args['author'] ) |
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70 $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_author = %d", $args['author'] ); |
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71 |
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72 if ( $args['start_date'] ) |
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73 $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_date >= %s", date( 'Y-m-d', strtotime($args['start_date']) ) ); |
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74 |
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75 if ( $args['end_date'] ) |
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76 $where .= $wpdb->prepare( " AND {$wpdb->posts}.post_date < %s", date( 'Y-m-d', strtotime('+1 month', strtotime($args['end_date'])) ) ); |
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77 } |
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78 |
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79 // grab a snapshot of post IDs, just in case it changes during the export |
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80 $post_ids = $wpdb->get_col( "SELECT ID FROM {$wpdb->posts} $join WHERE $where" ); |
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81 |
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82 // get the requested terms ready, empty unless posts filtered by category or all content |
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83 $cats = $tags = $terms = array(); |
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84 if ( isset( $term ) && $term ) { |
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85 $cat = get_term( $term['term_id'], 'category' ); |
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86 $cats = array( $cat->term_id => $cat ); |
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87 unset( $term, $cat ); |
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88 } else if ( 'all' == $args['content'] ) { |
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89 $categories = (array) get_categories( array( 'get' => 'all' ) ); |
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90 $tags = (array) get_tags( array( 'get' => 'all' ) ); |
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91 |
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92 $custom_taxonomies = get_taxonomies( array( '_builtin' => false ) ); |
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93 $custom_terms = (array) get_terms( $custom_taxonomies, array( 'get' => 'all' ) ); |
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94 |
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95 // put categories in order with no child going before its parent |
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96 while ( $cat = array_shift( $categories ) ) { |
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97 if ( $cat->parent == 0 || isset( $cats[$cat->parent] ) ) |
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98 $cats[$cat->term_id] = $cat; |
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99 else |
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100 $categories[] = $cat; |
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101 } |
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102 |
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103 // put terms in order with no child going before its parent |
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104 while ( $t = array_shift( $custom_terms ) ) { |
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105 if ( $t->parent == 0 || isset( $terms[$t->parent] ) ) |
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106 $terms[$t->term_id] = $t; |
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107 else |
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108 $custom_terms[] = $t; |
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109 } |
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110 |
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111 unset( $categories, $custom_taxonomies, $custom_terms ); |
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112 } |
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113 |
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114 /** |
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115 * Wrap given string in XML CDATA tag. |
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116 * |
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117 * @since 2.1.0 |
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118 * |
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119 * @param string $str String to wrap in XML CDATA tag. |
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120 * @return string |
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121 */ |
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122 function wxr_cdata( $str ) { |
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123 if ( seems_utf8( $str ) == false ) |
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124 $str = utf8_encode( $str ); |
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125 |
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126 // $str = ent2ncr(esc_html($str)); |
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127 $str = '<![CDATA[' . str_replace( ']]>', ']]]]><![CDATA[>', $str ) . ']]>'; |
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128 |
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129 return $str; |
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130 } |
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131 |
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132 /** |
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133 * Return the URL of the site |
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134 * |
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135 * @since 2.5.0 |
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136 * |
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137 * @return string Site URL. |
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138 */ |
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139 function wxr_site_url() { |
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140 // ms: the base url |
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141 if ( is_multisite() ) |
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142 return network_home_url(); |
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143 // wp: the blog url |
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144 else |
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145 return get_bloginfo_rss( 'url' ); |
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146 } |
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147 |
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148 /** |
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149 * Output a cat_name XML tag from a given category object |
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150 * |
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151 * @since 2.1.0 |
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152 * |
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153 * @param object $category Category Object |
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154 */ |
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155 function wxr_cat_name( $category ) { |
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156 if ( empty( $category->name ) ) |
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157 return; |
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158 |
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159 echo '<wp:cat_name>' . wxr_cdata( $category->name ) . '</wp:cat_name>'; |
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160 } |
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161 |
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162 /** |
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163 * Output a category_description XML tag from a given category object |
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164 * |
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165 * @since 2.1.0 |
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166 * |
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167 * @param object $category Category Object |
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168 */ |
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169 function wxr_category_description( $category ) { |
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170 if ( empty( $category->description ) ) |
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171 return; |
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172 |
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173 echo '<wp:category_description>' . wxr_cdata( $category->description ) . '</wp:category_description>'; |
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174 } |
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175 |
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176 /** |
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177 * Output a tag_name XML tag from a given tag object |
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178 * |
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179 * @since 2.3.0 |
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180 * |
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181 * @param object $tag Tag Object |
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182 */ |
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183 function wxr_tag_name( $tag ) { |
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184 if ( empty( $tag->name ) ) |
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185 return; |
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186 |
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187 echo '<wp:tag_name>' . wxr_cdata( $tag->name ) . '</wp:tag_name>'; |
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188 } |
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189 |
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190 /** |
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191 * Output a tag_description XML tag from a given tag object |
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192 * |
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193 * @since 2.3.0 |
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194 * |
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195 * @param object $tag Tag Object |
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196 */ |
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197 function wxr_tag_description( $tag ) { |
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198 if ( empty( $tag->description ) ) |
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199 return; |
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200 |
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201 echo '<wp:tag_description>' . wxr_cdata( $tag->description ) . '</wp:tag_description>'; |
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202 } |
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203 |
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204 /** |
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205 * Output a term_name XML tag from a given term object |
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206 * |
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207 * @since 2.9.0 |
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208 * |
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209 * @param object $term Term Object |
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210 */ |
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211 function wxr_term_name( $term ) { |
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212 if ( empty( $term->name ) ) |
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213 return; |
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214 |
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215 echo '<wp:term_name>' . wxr_cdata( $term->name ) . '</wp:term_name>'; |
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216 } |
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217 |
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218 /** |
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219 * Output a term_description XML tag from a given term object |
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220 * |
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221 * @since 2.9.0 |
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222 * |
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223 * @param object $term Term Object |
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224 */ |
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225 function wxr_term_description( $term ) { |
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226 if ( empty( $term->description ) ) |
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227 return; |
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228 |
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229 echo '<wp:term_description>' . wxr_cdata( $term->description ) . '</wp:term_description>'; |
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230 } |
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231 |
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232 /** |
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233 * Output list of authors with posts |
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234 * |
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235 * @since 3.1.0 |
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236 */ |
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237 function wxr_authors_list() { |
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238 global $wpdb; |
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239 |
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240 $authors = array(); |
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241 $results = $wpdb->get_results( "SELECT DISTINCT post_author FROM $wpdb->posts WHERE post_status != 'auto-draft'" ); |
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242 foreach ( (array) $results as $result ) |
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243 $authors[] = get_userdata( $result->post_author ); |
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244 |
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245 $authors = array_filter( $authors ); |
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246 |
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247 foreach ( $authors as $author ) { |
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248 echo "\t<wp:author>"; |
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249 echo '<wp:author_id>' . $author->ID . '</wp:author_id>'; |
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250 echo '<wp:author_login>' . $author->user_login . '</wp:author_login>'; |
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251 echo '<wp:author_email>' . $author->user_email . '</wp:author_email>'; |
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252 echo '<wp:author_display_name>' . wxr_cdata( $author->display_name ) . '</wp:author_display_name>'; |
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253 echo '<wp:author_first_name>' . wxr_cdata( $author->user_firstname ) . '</wp:author_first_name>'; |
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254 echo '<wp:author_last_name>' . wxr_cdata( $author->user_lastname ) . '</wp:author_last_name>'; |
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255 echo "</wp:author>\n"; |
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256 } |
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257 } |
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258 |
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259 /** |
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260 * Ouput all navigation menu terms |
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261 * |
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262 * @since 3.1.0 |
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263 */ |
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264 function wxr_nav_menu_terms() { |
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265 $nav_menus = wp_get_nav_menus(); |
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266 if ( empty( $nav_menus ) || ! is_array( $nav_menus ) ) |
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267 return; |
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268 |
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269 foreach ( $nav_menus as $menu ) { |
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270 echo "\t<wp:term><wp:term_id>{$menu->term_id}</wp:term_id><wp:term_taxonomy>nav_menu</wp:term_taxonomy><wp:term_slug>{$menu->slug}</wp:term_slug>"; |
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271 wxr_term_name( $menu ); |
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272 echo "</wp:term>\n"; |
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273 } |
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274 } |
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275 |
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276 /** |
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277 * Output list of taxonomy terms, in XML tag format, associated with a post |
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278 * |
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279 * @since 2.3.0 |
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280 */ |
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281 function wxr_post_taxonomy() { |
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282 $post = get_post(); |
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283 |
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284 $taxonomies = get_object_taxonomies( $post->post_type ); |
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285 if ( empty( $taxonomies ) ) |
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286 return; |
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287 $terms = wp_get_object_terms( $post->ID, $taxonomies ); |
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288 |
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289 foreach ( (array) $terms as $term ) { |
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290 echo "\t\t<category domain=\"{$term->taxonomy}\" nicename=\"{$term->slug}\">" . wxr_cdata( $term->name ) . "</category>\n"; |
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291 } |
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292 } |
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293 |
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294 function wxr_filter_postmeta( $return_me, $meta_key ) { |
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295 if ( '_edit_lock' == $meta_key ) |
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296 $return_me = true; |
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297 return $return_me; |
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298 } |
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299 add_filter( 'wxr_export_skip_postmeta', 'wxr_filter_postmeta', 10, 2 ); |
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300 |
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301 echo '<?xml version="1.0" encoding="' . get_bloginfo('charset') . "\" ?>\n"; |
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302 |
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303 ?> |
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304 <!-- This is a WordPress eXtended RSS file generated by WordPress as an export of your site. --> |
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305 <!-- It contains information about your site's posts, pages, comments, categories, and other content. --> |
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306 <!-- You may use this file to transfer that content from one site to another. --> |
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307 <!-- This file is not intended to serve as a complete backup of your site. --> |
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308 |
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309 <!-- To import this information into a WordPress site follow these steps: --> |
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310 <!-- 1. Log in to that site as an administrator. --> |
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311 <!-- 2. Go to Tools: Import in the WordPress admin panel. --> |
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312 <!-- 3. Install the "WordPress" importer from the list. --> |
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313 <!-- 4. Activate & Run Importer. --> |
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314 <!-- 5. Upload this file using the form provided on that page. --> |
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315 <!-- 6. You will first be asked to map the authors in this export file to users --> |
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316 <!-- on the site. For each author, you may choose to map to an --> |
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317 <!-- existing user on the site or to create a new user. --> |
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318 <!-- 7. WordPress will then import each of the posts, pages, comments, categories, etc. --> |
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319 <!-- contained in this file into your site. --> |
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320 |
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321 <?php the_generator( 'export' ); ?> |
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322 <rss version="2.0" |
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323 xmlns:excerpt="http://wordpress.org/export/<?php echo WXR_VERSION; ?>/excerpt/" |
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324 xmlns:content="http://purl.org/rss/1.0/modules/content/" |
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325 xmlns:wfw="http://wellformedweb.org/CommentAPI/" |
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326 xmlns:dc="http://purl.org/dc/elements/1.1/" |
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327 xmlns:wp="http://wordpress.org/export/<?php echo WXR_VERSION; ?>/" |
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328 > |
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329 |
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330 <channel> |
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331 <title><?php bloginfo_rss( 'name' ); ?></title> |
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332 <link><?php bloginfo_rss( 'url' ); ?></link> |
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333 <description><?php bloginfo_rss( 'description' ); ?></description> |
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334 <pubDate><?php echo date( 'D, d M Y H:i:s +0000' ); ?></pubDate> |
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335 <language><?php bloginfo_rss( 'language' ); ?></language> |
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336 <wp:wxr_version><?php echo WXR_VERSION; ?></wp:wxr_version> |
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337 <wp:base_site_url><?php echo wxr_site_url(); ?></wp:base_site_url> |
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338 <wp:base_blog_url><?php bloginfo_rss( 'url' ); ?></wp:base_blog_url> |
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339 |
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340 <?php wxr_authors_list(); ?> |
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341 |
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342 <?php foreach ( $cats as $c ) : ?> |
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343 <wp:category><wp:term_id><?php echo $c->term_id ?></wp:term_id><wp:category_nicename><?php echo $c->slug; ?></wp:category_nicename><wp:category_parent><?php echo $c->parent ? $cats[$c->parent]->slug : ''; ?></wp:category_parent><?php wxr_cat_name( $c ); ?><?php wxr_category_description( $c ); ?></wp:category> |
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344 <?php endforeach; ?> |
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345 <?php foreach ( $tags as $t ) : ?> |
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346 <wp:tag><wp:term_id><?php echo $t->term_id ?></wp:term_id><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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347 <?php endforeach; ?> |
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348 <?php foreach ( $terms as $t ) : ?> |
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349 <wp:term><wp:term_id><?php echo $t->term_id ?></wp:term_id><wp:term_taxonomy><?php echo $t->taxonomy; ?></wp:term_taxonomy><wp:term_slug><?php echo $t->slug; ?></wp:term_slug><wp:term_parent><?php echo $t->parent ? $terms[$t->parent]->slug : ''; ?></wp:term_parent><?php wxr_term_name( $t ); ?><?php wxr_term_description( $t ); ?></wp:term> |
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350 <?php endforeach; ?> |
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351 <?php if ( 'all' == $args['content'] ) wxr_nav_menu_terms(); ?> |
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352 |
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353 <?php do_action( 'rss2_head' ); ?> |
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354 |
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355 <?php if ( $post_ids ) { |
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356 global $wp_query; |
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357 $wp_query->in_the_loop = true; // Fake being in the loop. |
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358 |
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359 // fetch 20 posts at a time rather than loading the entire table into memory |
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360 while ( $next_posts = array_splice( $post_ids, 0, 20 ) ) { |
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361 $where = 'WHERE ID IN (' . join( ',', $next_posts ) . ')'; |
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362 $posts = $wpdb->get_results( "SELECT * FROM {$wpdb->posts} $where" ); |
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363 |
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364 // Begin Loop |
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365 foreach ( $posts as $post ) { |
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366 setup_postdata( $post ); |
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367 $is_sticky = is_sticky( $post->ID ) ? 1 : 0; |
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368 ?> |
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369 <item> |
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370 <?php /** This filter is documented in wp-includes/feed.php */ ?> |
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371 <title><?php echo apply_filters( 'the_title_rss', $post->post_title ); ?></title> |
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372 <link><?php the_permalink_rss() ?></link> |
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373 <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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374 <dc:creator><?php echo wxr_cdata( get_the_author_meta( 'login' ) ); ?></dc:creator> |
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375 <guid isPermaLink="false"><?php the_guid(); ?></guid> |
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376 <description></description> |
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377 <content:encoded><?php echo wxr_cdata( apply_filters( 'the_content_export', $post->post_content ) ); ?></content:encoded> |
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378 <excerpt:encoded><?php echo wxr_cdata( apply_filters( 'the_excerpt_export', $post->post_excerpt ) ); ?></excerpt:encoded> |
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379 <wp:post_id><?php echo $post->ID; ?></wp:post_id> |
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380 <wp:post_date><?php echo $post->post_date; ?></wp:post_date> |
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381 <wp:post_date_gmt><?php echo $post->post_date_gmt; ?></wp:post_date_gmt> |
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382 <wp:comment_status><?php echo $post->comment_status; ?></wp:comment_status> |
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383 <wp:ping_status><?php echo $post->ping_status; ?></wp:ping_status> |
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384 <wp:post_name><?php echo $post->post_name; ?></wp:post_name> |
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385 <wp:status><?php echo $post->post_status; ?></wp:status> |
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386 <wp:post_parent><?php echo $post->post_parent; ?></wp:post_parent> |
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387 <wp:menu_order><?php echo $post->menu_order; ?></wp:menu_order> |
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388 <wp:post_type><?php echo $post->post_type; ?></wp:post_type> |
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389 <wp:post_password><?php echo $post->post_password; ?></wp:post_password> |
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390 <wp:is_sticky><?php echo $is_sticky; ?></wp:is_sticky> |
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391 <?php if ( $post->post_type == 'attachment' ) : ?> |
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392 <wp:attachment_url><?php echo wp_get_attachment_url( $post->ID ); ?></wp:attachment_url> |
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393 <?php endif; ?> |
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394 <?php wxr_post_taxonomy(); ?> |
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395 <?php $postmeta = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->postmeta WHERE post_id = %d", $post->ID ) ); |
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396 foreach ( $postmeta as $meta ) : |
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397 if ( apply_filters( 'wxr_export_skip_postmeta', false, $meta->meta_key, $meta ) ) |
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398 continue; |
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399 ?> |
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400 <wp:postmeta> |
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401 <wp:meta_key><?php echo $meta->meta_key; ?></wp:meta_key> |
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402 <wp:meta_value><?php echo wxr_cdata( $meta->meta_value ); ?></wp:meta_value> |
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403 </wp:postmeta> |
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404 <?php endforeach; ?> |
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405 <?php $comments = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->comments WHERE comment_post_ID = %d AND comment_approved <> 'spam'", $post->ID ) ); |
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406 foreach ( $comments as $c ) : ?> |
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407 <wp:comment> |
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408 <wp:comment_id><?php echo $c->comment_ID; ?></wp:comment_id> |
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409 <wp:comment_author><?php echo wxr_cdata( $c->comment_author ); ?></wp:comment_author> |
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410 <wp:comment_author_email><?php echo $c->comment_author_email; ?></wp:comment_author_email> |
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411 <wp:comment_author_url><?php echo esc_url_raw( $c->comment_author_url ); ?></wp:comment_author_url> |
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412 <wp:comment_author_IP><?php echo $c->comment_author_IP; ?></wp:comment_author_IP> |
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413 <wp:comment_date><?php echo $c->comment_date; ?></wp:comment_date> |
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414 <wp:comment_date_gmt><?php echo $c->comment_date_gmt; ?></wp:comment_date_gmt> |
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415 <wp:comment_content><?php echo wxr_cdata( $c->comment_content ) ?></wp:comment_content> |
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416 <wp:comment_approved><?php echo $c->comment_approved; ?></wp:comment_approved> |
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417 <wp:comment_type><?php echo $c->comment_type; ?></wp:comment_type> |
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418 <wp:comment_parent><?php echo $c->comment_parent; ?></wp:comment_parent> |
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419 <wp:comment_user_id><?php echo $c->user_id; ?></wp:comment_user_id> |
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420 <?php $c_meta = $wpdb->get_results( $wpdb->prepare( "SELECT * FROM $wpdb->commentmeta WHERE comment_id = %d", $c->comment_ID ) ); |
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421 foreach ( $c_meta as $meta ) : ?> |
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422 <wp:commentmeta> |
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423 <wp:meta_key><?php echo $meta->meta_key; ?></wp:meta_key> |
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424 <wp:meta_value><?php echo wxr_cdata( $meta->meta_value ); ?></wp:meta_value> |
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425 </wp:commentmeta> |
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426 <?php endforeach; ?> |
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427 </wp:comment> |
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428 <?php endforeach; ?> |
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429 </item> |
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430 <?php |
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431 } |
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432 } |
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433 } ?> |
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434 </channel> |
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435 </rss> |
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436 <?php |
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437 } |