print.pages.inc

   1 <?php
   2
   3 /**
   4  * @file
   5  * Contains the functions to generate Printer-friendly pages.
   6  *
   7  * This file is included by the core PF module, and includes all the
   8  * functions necessary to generate a PF version of the original page
   9  * in HTML format.
  10  *
  11  * @ingroup print
  12  */
  13
  14 $_print_urls = PRINT_URLS_DEFAULT;
  15
  16 /**
  17  * Generate an HTML version of the printer-friendly page
  18  *
  19  * @see print_controller()
  20  */
  21 function print_controller_html() {
  22   $args = func_get_args();
  23   $path = filter_xss(implode('/', $args));
  24   $cid = isset($_GET['comment']) ? (int)$_GET['comment'] : NULL;
  25
  26   // Handle the query
  27   $query = $_GET;
  28   unset($query['q']);
  29
  30   $print = print_controller($path, $query, $cid, PRINT_HTML_FORMAT);
  31   if ($print !== FALSE) {
  32     $node = $print['node'];
  33     $html = theme('print', array('print' => $print, 'type' => PRINT_HTML_FORMAT, 'node' => $node));
  34     drupal_add_http_header('Content-Type', 'text/html; charset=utf-8');
  35     drupal_send_headers();
  36     print $html;
  37
  38     $nodepath = (isset($node->path) && is_string($node->path)) ? drupal_get_normal_path($node->path) : 'node/' . $path;
  39     db_merge('print_page_counter')
  40       ->key(array('path' => $nodepath))
  41       ->fields(array(
  42           'totalcount' => 1,
  43           'timestamp' => REQUEST_TIME,
  44       ))
  45       ->expression('totalcount', 'totalcount + 1')
  46       ->execute();
  47   }
  48 }
  49
  50 /**
  51  * Select the print generator function based on the page type
  52  *
  53  * Depending on the type of node, this functions chooses the appropriate
  54  * generator function.
  55  *
  56  * @param $path
  57  *   path of the original page
  58  * @param array $query
  59  *   (optional) array of key/value pairs as used in the url() function for the
  60  *   query
  61  * @param $cid
  62  *   comment ID of the individual comment to be rendered
  63  * @param $format
  64  *   format of the page being generated
  65  * @param $teaser
  66  *   if set to TRUE, outputs only the node's teaser
  67  * @param $message
  68  *   optional sender's message (used by the send email module)
  69  * @return
  70  *   array with the fields to be used in the template
  71  * @see _print_generate_node()
  72  * @see _print_generate_path()
  73  * @see _print_generate_book()
  74  */
  75 function print_controller($path, $query = NULL, $cid = NULL, $format = PRINT_HTML_FORMAT, $teaser = FALSE, $message = NULL) {
  76   if (empty($path)) {
  77     // If no path was provided, let's try to generate a page for the referer
  78     global $base_url;
  79
  80     $ref = $_SERVER['HTTP_REFERER'];
  81     $path = preg_replace("!^$base_url/!", '', $ref);
  82     if (($path === $ref) || empty($path)) {
  83       $path = variable_get('site_frontpage', 'node');
  84     }
  85   }
  86   if ($alias = drupal_lookup_path('source', $path)) {
  87     // Indirect call with print/alias
  88     // If there is a path alias with these arguments, generate a printer-friendly version for it
  89     $path = $alias;
  90   }
  91   $parts = explode('/', $path);
  92   if (($parts[0] == 'node') && (count($parts) > 1) && ctype_digit($parts[1])) {
  93     array_shift($parts);
  94     $path = implode('/', $parts);
  95   }
  96   if (ctype_digit($parts[0]) && (count($parts) == 1)) {
  97     $print = _print_generate_node($path, $query, $cid, $format, $teaser, $message);
  98   }
  99   else {
 100     $ret = preg_match('!^book/export/html/(.*)!i', $path, $matches);
 101     if ($ret == 1) {
 102       // This is a book PF page link, handle trough the book handling functions
 103       $print = _print_generate_book($matches[1], $query, $format, $teaser, $message);
 104     }
 105     else {
 106       // If no content node was found, handle the page printing with the 'printable' engine
 107       $print = _print_generate_path($path, $query, $format, $teaser, $message);
 108     }
 109   }
 110
 111   return $print;
 112 }
 113
 114 /**
 115  * Generates a robots meta tag to tell them what they may index
 116  *
 117  * @return
 118  *   string with the meta robots tag
 119  */
 120 function _print_robots_meta_generator() {
 121   $print_robots_noindex = variable_get('print_robots_noindex', PRINT_ROBOTS_NOINDEX_DEFAULT);
 122   $print_robots_nofollow = variable_get('print_robots_nofollow', PRINT_ROBOTS_NOFOLLOW_DEFAULT);
 123   $print_robots_noarchive = variable_get('print_robots_noarchive', PRINT_ROBOTS_NOARCHIVE_DEFAULT);
 124   $robots_meta = array();
 125
 126   if (!empty($print_robots_noindex)) {
 127     $robots_meta[] = 'noindex';
 128   }
 129   if (!empty($print_robots_nofollow)) {
 130     $robots_meta[] = 'nofollow';
 131   }
 132   if (!empty($print_robots_noarchive)) {
 133     $robots_meta[] = 'noarchive';
 134   }
 135
 136   if (count($robots_meta) > 0) {
 137     $robots_meta = implode(', ', $robots_meta);
 138     $robots_meta = "<meta name='robots' content='$robots_meta' />\n";
 139   }
 140   else {
 141     $robots_meta = '';
 142   }
 143
 144   return $robots_meta;
 145 }
 146
 147 /**
 148  * Post-processor that fills the array for the template with common details
 149  *
 150  * @param $node
 151  *   generated node with a printer-friendly node body
 152  * @param array $query
 153  *   (optional) array of key/value pairs as used in the url() function for the
 154  *   query
 155  * @param $message
 156  *   optional sender's message (used by the send email module)
 157  * @param $cid
 158  *   id of current comment being generated (NULL when not generating
 159  *   an individual comment)
 160  * @return
 161  *   array with the fields to be used in the template
 162  */
 163 function _print_var_generator($node, $query = NULL, $message = NULL, $cid = NULL) {
 164   global $base_url, $language, $_print_urls;
 165
 166   $path = empty($node->nid) ? $node->path : "node/$node->nid";
 167
 168   // print module settings
 169   $print_css = variable_get('print_css', PRINT_CSS_DEFAULT);
 170   $print_keep_theme_css = variable_get('print_keep_theme_css', PRINT_KEEP_THEME_CSS_DEFAULT);
 171   $print_logo_options = variable_get('print_logo_options', PRINT_LOGO_OPTIONS_DEFAULT);
 172   $print_logo_url = variable_get('print_logo_url', PRINT_LOGO_URL_DEFAULT);
 173   $print_html_new_window = variable_get('print_html_new_window', PRINT_HTML_NEW_WINDOW_DEFAULT);
 174   $print_html_sendtoprinter = variable_get('print_html_sendtoprinter', PRINT_HTML_SENDTOPRINTER_DEFAULT);
 175   $print_html_windowclose = variable_get('print_html_windowclose', PRINT_HTML_WINDOWCLOSE_DEFAULT);
 176   $print_sourceurl_enabled = variable_get('print_sourceurl_enabled', PRINT_SOURCEURL_ENABLED_DEFAULT);
 177   $print_sourceurl_forcenode = variable_get('print_sourceurl_forcenode', PRINT_SOURCEURL_FORCENODE_DEFAULT);
 178   $print_sourceurl_date = variable_get('print_sourceurl_date', PRINT_SOURCEURL_DATE_DEFAULT);
 179   $print_footer_options = variable_get('print_footer_options', PRINT_FOOTER_OPTIONS_DEFAULT);
 180   $print_footer_user = variable_get('print_footer_user', PRINT_FOOTER_USER_DEFAULT);
 181
 182   $print['language'] = $language->language;
 183   $print['title'] = check_plain($node->title);
 184   $print['head'] = drupal_get_html_head();
 185   if ($print_html_sendtoprinter) {
 186     drupal_add_js('misc/drupal.js', array('weight' => JS_LIBRARY));
 187   }
 188   $print['scripts'] = drupal_get_js();
 189   $print['footer_scripts'] = drupal_get_js('footer');
 190   $print['robots_meta'] = _print_robots_meta_generator();
 191   $print['url'] = url($path, array('absolute' => TRUE, 'query' => $query));
 192   $print['base_href'] = "<base href='" . $print['url'] . "' />\n";
 193   $print['favicon'] = theme_get_setting('toggle_favicon') ? "<link rel='shortcut icon' href='" . theme_get_setting('favicon') . "' type='image/x-icon' />\n" : '';
 194
 195   if (!empty($print_css)) {
 196     drupal_add_css(strtr($print_css, array('%t' => path_to_theme())));
 197   }
 198   else {
 199     drupal_add_css(drupal_get_path('module', 'print') . '/css/print.css');
 200   }
 201   $drupal_css = drupal_add_css();
 202   if (!$print_keep_theme_css) {
 203     foreach ($drupal_css as $key => $css_file) {
 204       if ($css_file['group'] == CSS_THEME) {
 205       // Unset the theme's CSS
 206         unset($drupal_css[$key]);
 207       }
 208     }
 209   }
 210
 211   // If we are sending a message via email, the CSS must be embedded
 212   if (!empty($message)) {
 213     $style = '';
 214     $css_files = array_keys($drupal_css);
 215     foreach ($css_files as $filename) {
 216       $res = file_exists($filename) ? file_get_contents($filename, TRUE) : FALSE;
 217       if ($res != FALSE) {
 218         $style .= $res;
 219       }
 220     }
 221     $print['css'] = "<style type='text/css' media='all'>$style</style>\n";
 222   }
 223   else {
 224     $print['css'] = drupal_get_css($drupal_css);
 225   }
 226
 227   $window_close = ($print_html_new_window && $print_html_windowclose) ? 'window.close();' : '';
 228   $print['sendtoprinter'] = $print_html_sendtoprinter ? '<script type="text/javascript">(function ($) { Drupal.behaviors.print = {attach: function(context) {$(window).load(function() {window.print();' . $window_close . '})}}})(jQuery);</script>' : '';
 229
 230   switch ($print_logo_options) {
 231     case 0: // none
 232       $logo_url = 0;
 233       break;
 234     case 1: // theme's
 235       $logo_url = theme_get_setting('logo');
 236       break;
 237     case 2: // user-specifed
 238       $logo_url = strip_tags($print_logo_url);
 239       break;
 240   }
 241   $logo_url = preg_replace('!^' . base_path() . '!', '', $logo_url);
 242   $site_name = variable_get('site_name', 'Drupal');
 243   $print['logo'] = $logo_url ? theme('image', array('path' => $logo_url, 'alt' => $site_name, 'attributes' => array('class' => 'print-logo', 'id' => 'logo'))) : '';
 244
 245   switch ($print_footer_options) {
 246     case 0: // none
 247       $footer = '';
 248       break;
 249     case 1: // theme's
 250       $footer_blocks = block_get_blocks_by_region('footer');
 251       $footer = variable_get('site_footer', FALSE) . "\n" . drupal_render($footer_blocks);
 252       break;
 253     case 2: // user-specifed
 254       $footer = $print_footer_user;
 255       break;
 256   }
 257   $print['footer_message'] = filter_xss_admin($footer);
 258
 259   $published_site = variable_get('site_name', 0);
 260   if ($published_site) {
 261     $print_text_published = filter_xss(variable_get('print_text_published', t('Published on %site_name')));
 262     $published = t($print_text_published, array('%site_name' => $published_site));
 263     $print['site_name'] = $published . ' (' . l($base_url, $base_url) . ')';
 264   }
 265   else {
 266     $print['site_name'] = '';
 267   }
 268
 269   if ($print_sourceurl_enabled == 1) {
 270     /* Grab and format the src URL */
 271     if (empty($print_sourceurl_forcenode)) {
 272       $url = $print['url'];
 273     }
 274     else {
 275       $url = $base_url . '/' . (((bool)variable_get('clean_url', '0')) ? '' : '?q=') . $path;
 276     }
 277     if (is_int($cid)) {
 278       $url .= "#comment-$cid";
 279     }
 280     $retrieved_date = format_date(REQUEST_TIME, 'short');
 281     $print_text_retrieved = filter_xss(variable_get('print_text_retrieved', t('retrieved on %date')));
 282     $retrieved = t($print_text_retrieved, array('%date' => $retrieved_date));
 283     $print['printdate'] = $print_sourceurl_date ? " ($retrieved)" : '';
 284
 285     $source_url = filter_xss(variable_get('print_text_source_url', t('Source URL')));
 286     $print['source_url'] = '<strong>' . $source_url . $print['printdate'] . ':</strong> ' . l($url, $url);
 287   }
 288   else {
 289     $print['source_url'] = '';
 290   }
 291
 292   $print['type'] = (isset($node->type)) ? $node->type : '';
 293
 294   menu_set_active_item($path);
 295   $breadcrumb = drupal_get_breadcrumb();
 296   if (!empty($breadcrumb)) {
 297     $breadcrumb[] = menu_get_active_title();
 298     $print['breadcrumb'] = filter_xss(implode(' > ', $breadcrumb));
 299   }
 300   else {
 301     $print['breadcrumb'] = '';
 302   }
 303
 304   // Display the collected links at the bottom of the page. Code once taken from Kjartan Mannes' project.module
 305   $print['pfp_links'] = '';
 306   if (!empty($_print_urls)) {
 307     $urls = _print_friendly_urls();
 308     $max = count($urls);
 309     $pfp_links = '';
 310     if ($max) {
 311       for ($i = 0; $i < $max; $i++) {
 312         $pfp_links .= '[' . ($i + 1) . '] ' . check_plain($urls[$i]) . "<br />\n";
 313       }
 314       $links = filter_xss(variable_get('print_text_links', t('Links')));
 315       $print['pfp_links'] = "<p><strong>$links:</strong><br />$pfp_links</p>";
 316     }
 317   }
 318
 319   $print['node'] = $node;
 320   $print['message'] = $message;
 321
 322   return $print;
 323 }
 324
 325 /**
 326  * Callback function for the preg_replace_callback for URL-capable patterns
 327  *
 328  * Manipulate URLs to make them absolute in the URLs list, and to add a
 329  * [n] footnote marker.
 330  *
 331  * @param $matches
 332  *   array with the matched tag patterns, usually <a...>+text+</a>
 333  * @return
 334  *   tag with re-written URL and when appropriate the [n] index to the
 335  *   URL list
 336  */
 337 function _print_rewrite_urls($matches) {
 338   global $base_url, $base_root, $_print_urls;
 339
 340   $include_anchors = variable_get('print_urls_anchors', PRINT_URLS_ANCHORS_DEFAULT);
 341
 342   // first, split the html into the different tag attributes
 343   $pattern = '!\s*(\w+\s*=\s*"(?:\\\"|[^"])*")\s*|\s*(\w+\s*=\s*\'(?:\\\\\'|[^\'])*\')\s*|\s*(\w+\s*=\s*\w+)\s*|\s+!';
 344   $attribs = preg_split($pattern, $matches[1], -1, PREG_SPLIT_NO_EMPTY | PREG_SPLIT_DELIM_CAPTURE);
 345   foreach ($attribs as $key => $value) {
 346     $attribs[$key] = preg_replace('!(\w)\s*=\s*(.*)!', '$1=$2', $value);
 347   }
 348
 349   $size = count($attribs);
 350   for ($i=1; $i < $size; $i++) {
 351     // If the attribute is href or src, we may need to rewrite the URL in the value
 352     if (preg_match('!^(?:href|src)\s*?=(.*)!i', $attribs[$i], $urls) > 0) {
 353       $url = trim($urls[1], " \t\n\r\0\x0B\"'");
 354
 355       if (empty($url)) {
 356         // If URL is empty, use current_url
 357         $path = explode('/', $_GET['q']);
 358         unset($path[0]);
 359         $path = implode('/', $path);
 360         if (ctype_digit($path)) {
 361           $path = "node/$path";
 362         }
 363         // Printer-friendly URLs is on, so we need to make it absolute
 364         $newurl = url($path, array('fragment' => drupal_substr($url, 1), 'absolute' => TRUE));
 365       }
 366       elseif (strpos(html_entity_decode($url), '://') || preg_match('!^mailto:.*?@.*?\..*?$!iu', html_entity_decode($url))) {
 367         // URL is absolute, do nothing
 368         $newurl = $url;
 369       }
 370       elseif (strpos(html_entity_decode($url), '//') === 0) {
 371         // URL is 'almost absolute', but it does not contain protocol; replace with base_path protocol
 372         $newurl = (empty($_SERVER['HTTPS']) ? 'http' : 'https') . ":" . $url;
 373         $matches[1] = str_replace($url, $newurl, $matches[1]);
 374       }
 375       else {
 376         if ($url[0] == '#') {
 377           // URL is an anchor tag
 378           if ($include_anchors && (!empty($_print_urls))) {
 379             $path = explode('/', $_GET['q']);
 380             unset($path[0]);
 381             $path = implode('/', $path);
 382             if (ctype_digit($path)) {
 383               $path = "node/$path";
 384             }
 385             // Printer-friendly URLs is on, so we need to make it absolute
 386             $newurl = url($path, array('fragment' => drupal_substr($url, 1), 'absolute' => TRUE));
 387           }
 388           // Because base href is the original page, change the link to
 389           // still be usable inside the print page
 390           $matches[1] = str_replace($url, base_path() . $_GET['q'] . $url, $matches[1]);
 391         }
 392         else {
 393           // URL is relative, convert it into absolute URL
 394           if ($url[0] == '/') {
 395             // If it starts with '/' just append it to the server name
 396             $newurl = $base_root . '/' . trim($url, '/');
 397           }
 398           elseif (preg_match('!^(?:index.php)?\?q=!i', $url)) {
 399             // If it starts with ?q=, just prepend with the base URL
 400             $newurl = $base_url . '/' . trim($url, '/');
 401           }
 402           else {
 403             $newurl = url(trim($url, '/'), array('absolute' => TRUE));
 404           }
 405           $matches[1] = str_replace($url, $newurl, $matches[1]);
 406         }
 407       }
 408     }
 409   }
 410
 411   $ret = '<' . $matches[1] . '>';
 412   if (count($matches) == 4) {
 413     $ret .= $matches[2] . $matches[3];
 414     if ((!empty($_print_urls)) && (isset($newurl))) {
 415       $ret .= ' <span class="print-footnote">[' . _print_friendly_urls(trim($newurl)) . ']</span>';
 416     }
 417   }
 418
 419   return $ret;
 420 }
 421
 422 /**
 423  * Auxiliary function to store the Printer-friendly URLs list as static.
 424  *
 425  * @param $url
 426  *   absolute URL to be inserted in the list
 427  * @return
 428  *   list of URLs previously stored if $url is 0, or the current count
 429  *   otherwise.
 430  */
 431 function _print_friendly_urls($url = 0) {
 432   static $urls = array();
 433   if ($url !== 0) {
 434     $url_idx = array_search($url, $urls);
 435     if ($url_idx !== FALSE) {
 436       return ($url_idx + 1);
 437     }
 438     else {
 439       $urls[] = $url;
 440       return count($urls);
 441     }
 442   }
 443   $ret = $urls;
 444   $urls = array();
 445   return $ret;
 446 }
 447
 448 /**
 449  * Check URL list settings for this node
 450  *
 451  * @param node
 452  *   node object
 453  * @param $format
 454  *   format of the page being generated
 455  * @return
 456  *   TRUE if URL list should be displayed, FALSE otherwise
 457  */
 458 function _print_url_list_enabled($node, $format = PRINT_HTML_FORMAT) {
 459   if (!isset($node->type)) {
 460     switch ($format) {
 461       case PRINT_HTML_FORMAT:
 462         $node_urllist = variable_get('print_display_sys_urllist', PRINT_TYPE_SYS_URLLIST_DEFAULT);
 463         break;
 464       case PRINT_MAIL_FORMAT:
 465         $node_urllist = variable_get('print_mail_display_sys_urllist', PRINT_TYPE_SYS_URLLIST_DEFAULT);
 466         break;
 467       case PRINT_PDF_FORMAT:
 468         $node_urllist = variable_get('print_pdf_display_sys_urllist', PRINT_TYPE_SYS_URLLIST_DEFAULT);
 469         break;
 470       default:
 471         $node_urllist = PRINT_TYPE_SYS_URLLIST_DEFAULT;
 472     }
 473   }
 474   else {
 475     switch ($format) {
 476       case PRINT_HTML_FORMAT:
 477         $node_urllist = isset($node->print_display_urllist) ? $node->print_display_urllist : variable_get('print_display_urllist_' . $node->type, PRINT_TYPE_URLLIST_DEFAULT);
 478         break;
 479       case PRINT_MAIL_FORMAT:
 480         $node_urllist = isset($node->print_mail_display_urllist) ? $node->print_mail_display_urllist : variable_get('print_mail_display_urllist_' . $node->type, PRINT_TYPE_URLLIST_DEFAULT);
 481         break;
 482       case PRINT_PDF_FORMAT:
 483         $node_urllist = isset($node->print_pdf_display_urllist) ? $node->print_pdf_display_urllist : variable_get('print_pdf_display_urllist_' . $node->type, PRINT_TYPE_URLLIST_DEFAULT);
 484         break;
 485       default:
 486         $node_urllist = PRINT_TYPE_URLLIST_DEFAULT;
 487     }
 488   }
 489
 490   // Get value of Printer-friendly URLs setting
 491   return (variable_get('print_urls', PRINT_URLS_DEFAULT) && ($node_urllist));
 492 }
 493
 494 /**
 495  * Prepare a Printer-friendly-ready node body for content nodes
 496  *
 497  * @param $nid
 498  *   node ID of the node to be rendered into a printer-friendly page
 499  * @param array $query
 500  *   (optional) array of key/value pairs as used in the url() function for the
 501  *   query
 502  * @param $cid
 503  *   comment ID of the individual comment to be rendered
 504  * @param $format
 505  *   format of the page being generated
 506  * @param $teaser
 507  *   if set to TRUE, outputs only the node's teaser
 508  * @param $message
 509  *   optional sender's message (used by the send email module)
 510  * @return
 511  *   filled array ready to be used in the template
 512  */
 513 function _print_generate_node($nid, $query = NULL, $cid = NULL, $format = PRINT_HTML_FORMAT, $teaser = FALSE, $message = NULL) {
 514   global $_print_urls;
 515
 516   if (!isset($langcode)) {
 517     $langcode = $GLOBALS['language_content']->language;
 518   }
 519
 520   // We can take a node id
 521   $node = node_load($nid);
 522   if (!$node) {
 523     // Node not found
 524     drupal_not_found();
 525     return FALSE;
 526   }
 527   elseif (!node_access('view', $node)) {
 528     // Access is denied
 529     drupal_access_denied();
 530     return FALSE;
 531   }
 532   drupal_set_title($node->title);
 533
 534   $view_mode = $teaser ? 'teaser' : 'print';
 535
 536   // Turn off Pagination by the Paging module
 537   unset($node->pages);
 538   unset($node->page_count);
 539
 540   // Make this page a member of the original page's organic group
 541   if (function_exists('og_set_group_context') && isset($node->og_groups)) {
 542     og_set_group_context($node->og_groups);
 543   }
 544
 545   if ($cid === NULL) {
 546     // Adapted (simplified) version of node_view
 547     // Render the node content
 548     node_build_content($node, $view_mode);
 549
 550     // Disable the links area
 551     unset($node->content['links']);
 552     // Disable fivestar widget output
 553     unset($node->content['fivestar_widget']);
 554     // Disable service links module output
 555     unset($node->content['service_links']);
 556
 557     $build = $node->content;
 558     unset($node->content);
 559   }
 560
 561   $print_comments = variable_get('print_comments', PRINT_COMMENTS_DEFAULT);
 562
 563   if (function_exists('comment_node_page_additions') && (($cid != NULL) || ($print_comments))) {
 564     // Print only the requested comment (or if $cid is NULL, all of them)
 565
 566     $comments = comment_node_page_additions($node);
 567     if (!empty($comments)) {
 568       unset($comments['comment_form']);
 569       foreach ($comments['comments'] as $key => &$comment) {
 570         if (is_numeric($key)) {
 571           if (($cid != NULL) && ($key != $cid)) {
 572             unset($comments['comments'][$key]);
 573           }
 574           else {
 575             unset($comment['links']);
 576           }
 577         }
 578       }
 579
 580       $build['comments'] = $comments;
 581     }
 582   }
 583
 584   $build += array(
 585     '#theme' => 'node',
 586     '#node' => $node,
 587     '#view_mode' => $view_mode,
 588     '#language' => $langcode,
 589     '#print_format' => $format,
 590   );
 591
 592   $type = 'node';
 593   drupal_alter(array('node_view', 'entity_view'), $build, $type);
 594
 595   $content = render($build);
 596
 597   // Get rid of any links before the content
 598   $parts = explode('<div class="content', $content, 2);
 599   if (count($parts) == 2) {
 600     $pattern = '!(.*?)<a [^>]*?>(.*?)</a>(.*?)!mis';
 601     $parts[0] = preg_replace($pattern, '$1$2$3', $parts[0]);
 602     $content = implode('<div class="content', $parts);
 603   }
 604
 605   // Check URL list settings
 606   $_print_urls = _print_url_list_enabled($node, $format);
 607
 608   // Convert the a href elements
 609   $pattern = '!<(a\s[^>]*?)>(.*?)(</a>)!is';
 610   $content = preg_replace_callback($pattern, '_print_rewrite_urls', $content);
 611
 612   $print = _print_var_generator($node, $query, $message, $cid);
 613   $print['content'] = $content;
 614
 615   return $print;
 616 }
 617
 618 /**
 619  * Prepare a Printer-friendly-ready node body for non-content pages
 620  *
 621  * @param $path
 622  *   path of the node to be rendered into a printer-friendly page
 623  * @param array $query
 624  *   (optional) array of key/value pairs as used in the url() function for the
 625  *   query
 626  * @param $format
 627  *   format of the page being generated
 628  * @param $teaser
 629  *   if set to TRUE, outputs only the node's teaser
 630  * @param $message
 631  *   optional sender's message (used by the send email module)
 632  * @return
 633  *   filled array ready to be used in the template
 634  */
 635 function _print_generate_path($path, $query = NULL, $format = PRINT_HTML_FORMAT, $teaser = FALSE, $message = NULL) {
 636   global $_print_urls;
 637
 638   // Handle node tabs
 639   $parts = explode('/', $path);
 640   if (ctype_digit($parts[0]) && (count($parts) > 1)) {
 641     $path = 'node/' . $path;
 642   }
 643
 644   $path = drupal_get_normal_path($path);
 645
 646   menu_set_active_item($path);
 647   // Adapted from index.php.
 648   $node = new stdClass();
 649   $node->body = menu_execute_active_handler($path, FALSE);
 650   if (is_array($node->body)) {
 651     $node->body = drupal_render($node->body);
 652   }
 653
 654   if (is_int($node->body)) {
 655     switch ($node->body) {
 656       case MENU_NOT_FOUND:
 657         drupal_not_found();
 658         return FALSE;
 659         break;
 660       case MENU_ACCESS_DENIED:
 661         drupal_access_denied();
 662         return FALSE;
 663         break;
 664     }
 665   }
 666
 667   $node->title = drupal_get_title();
 668   $node->path = $path;
 669   $node->changed = 0;
 670
 671   // Delete any links area
 672   $node->body = preg_replace('!\s*<div class="links">.*?</div>!sim', '', $node->body);
 673
 674   // Check URL list settings
 675   $_print_urls = _print_url_list_enabled($node, $format);
 676
 677   // Convert the a href elements
 678   $pattern = '!<(a\s[^>]*?)>(.*?)(</a>)!is';
 679   $node->body = preg_replace_callback($pattern, '_print_rewrite_urls', $node->body);
 680
 681   $print = _print_var_generator($node, $query, $message);
 682   $print['content'] = $node->body;
 683
 684   return $print;
 685 }
 686
 687
 688 /**
 689  * Prepare a Printer-friendly-ready node body for book pages
 690  *
 691  * @param $nid
 692  *   node ID of the node to be rendered into a printer-friendly page
 693  * @param array $query
 694  *   (optional) array of key/value pairs as used in the url() function for the
 695  *   query
 696  * @param $format
 697  *   format of the page being generated
 698  * @param $teaser
 699  *   if set to TRUE, outputs only the node's teaser
 700  * @param $message
 701  *   optional sender's message (used by the send email module)
 702  * @return
 703  *   filled array ready to be used in the template
 704  */
 705 function _print_generate_book($nid, $query = NULL, $format = PRINT_HTML_FORMAT, $teaser = FALSE, $message = NULL) {
 706   global $_print_urls;
 707
 708   $node = node_load($nid);
 709   if (!$node) {
 710     // Node not found
 711     drupal_not_found();
 712     return FALSE;
 713   }
 714   elseif (!node_access('view', $node) || (!user_access('access printer-friendly version'))) {
 715     // Access is denied
 716     drupal_access_denied();
 717     return FALSE;
 718   }
 719
 720   $tree = book_menu_subtree_data($node->book);
 721   $node->body = book_export_traverse($tree, 'book_node_export');
 722
 723   // Check URL list settings
 724   $_print_urls = _print_url_list_enabled($node, $format);
 725
 726   // Convert the a href elements
 727   $pattern = '!<(a\s[^>]*?)>(.*?)(</a>)!is';
 728   $node->body = preg_replace_callback($pattern, '_print_rewrite_urls', $node->body);
 729
 730   $print = _print_var_generator($node, $query, $message);
 731   $print['content'] = $node->body;
 732
 733   // The title is already displayed by the book_recurse, so avoid duplication
 734   $print['title'] = '';
 735
 736   return $print;
 737 }