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1 <?php |
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2 /** |
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3 * RSS Importer |
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4 * |
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5 * @package WordPress |
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6 * @subpackage Importer |
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7 */ |
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8 |
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9 /** |
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10 * RSS Importer |
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11 * |
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12 * Will process a RSS feed for importing posts into WordPress. This is a very |
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13 * limited importer and should only be used as the last resort, when no other |
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14 * importer is available. |
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15 * |
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16 * @since unknown |
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17 */ |
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18 class RSS_Import { |
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19 |
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20 var $posts = array (); |
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21 var $file; |
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22 |
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23 function header() { |
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24 echo '<div class="wrap">'; |
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25 screen_icon(); |
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26 echo '<h2>'.__('Import RSS').'</h2>'; |
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27 } |
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28 |
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29 function footer() { |
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30 echo '</div>'; |
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31 } |
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32 |
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33 function unhtmlentities($string) { // From php.net for < 4.3 compat |
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34 $trans_tbl = get_html_translation_table(HTML_ENTITIES); |
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35 $trans_tbl = array_flip($trans_tbl); |
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36 return strtr($string, $trans_tbl); |
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37 } |
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38 |
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39 function greet() { |
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40 echo '<div class="narrow">'; |
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41 echo '<p>'.__('Howdy! This importer allows you to extract posts from an RSS 2.0 file into your blog. This is useful if you want to import your posts from a system that is not handled by a custom import tool. Pick an RSS file to upload and click Import.').'</p>'; |
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42 wp_import_upload_form("admin.php?import=rss&step=1"); |
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43 echo '</div>'; |
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44 } |
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45 |
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46 function _normalize_tag( $matches ) { |
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47 return '<' . strtolower( $matches[1] ); |
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48 } |
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49 |
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50 function get_posts() { |
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51 global $wpdb; |
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52 |
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53 set_magic_quotes_runtime(0); |
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54 $datalines = file($this->file); // Read the file into an array |
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55 $importdata = implode('', $datalines); // squish it |
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56 $importdata = str_replace(array ("\r\n", "\r"), "\n", $importdata); |
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57 |
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58 preg_match_all('|<item>(.*?)</item>|is', $importdata, $this->posts); |
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59 $this->posts = $this->posts[1]; |
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60 $index = 0; |
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61 foreach ($this->posts as $post) { |
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62 preg_match('|<title>(.*?)</title>|is', $post, $post_title); |
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63 $post_title = str_replace(array('<![CDATA[', ']]>'), '', $wpdb->escape( trim($post_title[1]) )); |
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64 |
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65 preg_match('|<pubdate>(.*?)</pubdate>|is', $post, $post_date_gmt); |
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66 |
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67 if ($post_date_gmt) { |
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68 $post_date_gmt = strtotime($post_date_gmt[1]); |
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69 } else { |
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70 // if we don't already have something from pubDate |
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71 preg_match('|<dc:date>(.*?)</dc:date>|is', $post, $post_date_gmt); |
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72 $post_date_gmt = preg_replace('|([-+])([0-9]+):([0-9]+)$|', '\1\2\3', $post_date_gmt[1]); |
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73 $post_date_gmt = str_replace('T', ' ', $post_date_gmt); |
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74 $post_date_gmt = strtotime($post_date_gmt); |
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75 } |
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76 |
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77 $post_date_gmt = gmdate('Y-m-d H:i:s', $post_date_gmt); |
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78 $post_date = get_date_from_gmt( $post_date_gmt ); |
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79 |
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80 preg_match_all('|<category>(.*?)</category>|is', $post, $categories); |
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81 $categories = $categories[1]; |
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82 |
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83 if (!$categories) { |
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84 preg_match_all('|<dc:subject>(.*?)</dc:subject>|is', $post, $categories); |
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85 $categories = $categories[1]; |
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86 } |
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87 |
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88 $cat_index = 0; |
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89 foreach ($categories as $category) { |
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90 $categories[$cat_index] = $wpdb->escape($this->unhtmlentities($category)); |
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91 $cat_index++; |
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92 } |
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93 |
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94 preg_match('|<guid.*?>(.*?)</guid>|is', $post, $guid); |
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95 if ($guid) |
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96 $guid = $wpdb->escape(trim($guid[1])); |
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97 else |
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98 $guid = ''; |
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99 |
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100 preg_match('|<content:encoded>(.*?)</content:encoded>|is', $post, $post_content); |
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101 $post_content = str_replace(array ('<![CDATA[', ']]>'), '', $wpdb->escape(trim($post_content[1]))); |
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102 |
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103 if (!$post_content) { |
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104 // This is for feeds that put content in description |
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105 preg_match('|<description>(.*?)</description>|is', $post, $post_content); |
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106 $post_content = $wpdb->escape($this->unhtmlentities(trim($post_content[1]))); |
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107 } |
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108 |
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109 // Clean up content |
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110 $post_content = preg_replace_callback('|<(/?[A-Z]+)|', array( &$this, '_normalize_tag' ), $post_content); |
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111 $post_content = str_replace('<br>', '<br />', $post_content); |
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112 $post_content = str_replace('<hr>', '<hr />', $post_content); |
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113 |
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114 $post_author = 1; |
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115 $post_status = 'publish'; |
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116 $this->posts[$index] = compact('post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_title', 'post_status', 'guid', 'categories'); |
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117 $index++; |
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118 } |
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119 } |
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120 |
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121 function import_posts() { |
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122 echo '<ol>'; |
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123 |
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124 foreach ($this->posts as $post) { |
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125 echo "<li>".__('Importing post...'); |
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126 |
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127 extract($post); |
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128 |
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129 if ($post_id = post_exists($post_title, $post_content, $post_date)) { |
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130 _e('Post already imported'); |
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131 } else { |
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132 $post_id = wp_insert_post($post); |
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133 if ( is_wp_error( $post_id ) ) |
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134 return $post_id; |
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135 if (!$post_id) { |
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136 _e('Couldn’t get post ID'); |
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137 return; |
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138 } |
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139 |
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140 if (0 != count($categories)) |
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141 wp_create_categories($categories, $post_id); |
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142 _e('Done !'); |
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143 } |
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144 echo '</li>'; |
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145 } |
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146 |
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147 echo '</ol>'; |
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148 |
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149 } |
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150 |
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151 function import() { |
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152 $file = wp_import_handle_upload(); |
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153 if ( isset($file['error']) ) { |
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154 echo $file['error']; |
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155 return; |
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156 } |
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157 |
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158 $this->file = $file['file']; |
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159 $this->get_posts(); |
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160 $result = $this->import_posts(); |
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161 if ( is_wp_error( $result ) ) |
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162 return $result; |
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163 wp_import_cleanup($file['id']); |
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164 do_action('import_done', 'rss'); |
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165 |
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166 echo '<h3>'; |
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167 printf(__('All done. <a href="%s">Have fun!</a>'), get_option('home')); |
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168 echo '</h3>'; |
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169 } |
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170 |
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171 function dispatch() { |
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172 if (empty ($_GET['step'])) |
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173 $step = 0; |
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174 else |
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175 $step = (int) $_GET['step']; |
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176 |
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177 $this->header(); |
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178 |
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179 switch ($step) { |
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180 case 0 : |
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181 $this->greet(); |
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182 break; |
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183 case 1 : |
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184 check_admin_referer('import-upload'); |
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185 $result = $this->import(); |
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186 if ( is_wp_error( $result ) ) |
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187 echo $result->get_error_message(); |
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188 break; |
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189 } |
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190 |
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191 $this->footer(); |
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192 } |
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193 |
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194 function RSS_Import() { |
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195 // Nothing. |
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196 } |
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197 } |
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198 |
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199 $rss_import = new RSS_Import(); |
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200 |
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201 register_importer('rss', __('RSS'), __('Import posts from an RSS feed.'), array ($rss_import, 'dispatch')); |
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202 ?> |