print_pdf.module in Printer, email and PDF versions 7
Same filename and directory in other branches
Displays Printer-friendly versions of Drupal pages.
File
print_pdf/print_pdf.moduleView source
<?php
/**
* @file
* Displays Printer-friendly versions of Drupal pages.
*
* @ingroup print
*/
define('PRINTPDF_PATH', 'printpdf');
// Defined in print.module
// define('PRINT_PDF_FORMAT', 'pdf');
define('PRINT_PDF_LIB_PATH', 'sites/all/libraries');
define('PRINT_PDF_LINK_POS_DEFAULT', '{ "link": "link", "block": "block", "help": "help" }');
define('PRINT_PDF_LINK_TEASER_DEFAULT', 0);
define('PRINT_PDF_SHOW_LINK_DEFAULT', 1);
define('PRINT_PDF_NODE_LINK_VISIBILITY_DEFAULT', 0);
define('PRINT_PDF_NODE_LINK_PAGES_DEFAULT', '');
define('PRINT_PDF_LINK_CLASS_DEFAULT', 'print-pdf');
define('PRINT_PDF_SYS_LINK_VISIBILITY_DEFAULT', 1);
define('PRINT_PDF_SYS_LINK_PAGES_DEFAULT', '');
define('PRINT_PDF_LINK_USE_ALIAS_DEFAULT', 0);
define('PRINT_PDF_BOOK_LINK_DEFAULT', 1);
define('PRINT_PDF_PDF_TOOL_DEFAULT', 0);
define('PRINT_PDF_CONTENT_DISPOSITION_DEFAULT', 2);
define('PRINT_PDF_PAPER_SIZE_DEFAULT', 'A4');
define('PRINT_PDF_PAGE_ORIENTATION_DEFAULT', 'portrait');
define('PRINT_PDF_IMAGES_VIA_FILE_DEFAULT', 0);
define('PRINT_PDF_AUTOCONFIG_DEFAULT', 1);
define('PRINT_PDF_FONT_FAMILY_DEFAULT', 'dejavusans');
define('PRINT_PDF_FONT_SIZE_DEFAULT', 10);
define('PRINT_PDF_FONT_SUBSETTING_DEFAULT', FALSE);
define('PRINT_PDF_FILENAME_DEFAULT', '[site:name] - [node:title] - [node:changed:custom:Y-m-d]');
define('PRINT_PDF_DOMPDF_UNICODE_DEFAULT', 0);
define('PRINT_PDF_WKHTMLTOPDF_OPTIONS', "--footer-font-size 7 --footer-right '[page]'");
define('PRINT_PDF_DOMPDF_CACHE_DIR_DEFAULT', 'print_pdf/dompdf');
define('PRINT_PDF_TCPDF_CACHE_DIR_DEFAULT', 'print_pdf/tcpdf');
/**
* Implements hook_permission().
*/
function print_pdf_permission() {
return array(
'access PDF version' => array(
'title' => t('Access the PDF version'),
'description' => t('View the PDF versions and the links to them in the original pages.'),
),
);
}
/**
* Implements hook_theme().
*/
function print_pdf_theme() {
return array(
'print_pdf_format_link' => array(
'variables' => array(),
),
'print_pdf_dompdf_footer' => array(
'variables' => array(
'html' => '',
),
'file' => 'print_pdf.pages.inc',
),
'print_pdf_tcpdf_header' => array(
'variables' => array(
'pdf' => NULL,
'html' => '',
'font' => array(),
),
'file' => 'print_pdf.pages.inc',
),
'print_pdf_tcpdf_page' => array(
'variables' => array(
'pdf' => NULL,
),
'file' => 'print_pdf.pages.inc',
),
'print_pdf_tcpdf_content' => array(
'variables' => array(
'pdf' => NULL,
'html' => '',
'font' => array(),
),
'file' => 'print_pdf.pages.inc',
),
'print_pdf_tcpdf_footer' => array(
'variables' => array(
'pdf' => NULL,
'html' => '',
'font' => array(),
),
'file' => 'print_pdf.pages.inc',
),
'print_pdf_tcpdf_footer2' => array(
'variables' => array(
'pdf' => NULL,
),
'file' => 'print_pdf.pages.inc',
),
);
}
/**
* Implements hook_init().
*/
function print_pdf_init() {
if (variable_get('print_pdf_autoconfig', PRINT_PDF_AUTOCONFIG_DEFAULT)) {
$pdf_dirs = array();
$print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', PRINT_PDF_PDF_TOOL_DEFAULT);
if (basename($print_pdf_pdf_tool) == 'dompdf_config.inc.php') {
$pdf_dirs[] = PRINT_PDF_DOMPDF_CACHE_DIR_DEFAULT . '/fonts';
}
elseif (basename($print_pdf_pdf_tool) == 'tcpdf.php') {
foreach (array(
'cache',
'images',
) as $dir) {
$pdf_dirs[] = PRINT_PDF_TCPDF_CACHE_DIR_DEFAULT . '/' . $dir;
}
}
if (!empty($pdf_dirs)) {
foreach ($pdf_dirs as $pdf_dir) {
$directory = 'public://' . $pdf_dir;
file_prepare_directory($directory, FILE_CREATE_DIRECTORY);
}
}
}
}
/**
* Implements hook_menu().
*/
function print_pdf_menu() {
$items = array();
$items[PRINTPDF_PATH] = array(
'title' => 'Printer-friendly PDF',
'page callback' => 'print_pdf_controller',
'access arguments' => array(
'access PDF version',
),
'type' => MENU_CALLBACK,
'file' => 'print_pdf.pages.inc',
);
$items[PRINTPDF_PATH . '/' . PRINTPDF_PATH] = array(
'access callback' => FALSE,
);
$items['admin/config/user-interface/print/pdf'] = array(
'title' => 'PDF',
'description' => 'Configure the settings of the PDF generation functionality.',
'page callback' => 'drupal_get_form',
'page arguments' => array(
'print_pdf_settings',
),
'access arguments' => array(
'administer print',
),
'weight' => 3,
'type' => MENU_LOCAL_TASK,
'file' => 'print_pdf.admin.inc',
);
$items['admin/config/user-interface/print/pdf/options'] = array(
'title' => 'Options',
'weight' => 1,
'type' => MENU_DEFAULT_LOCAL_TASK,
);
$items['admin/config/user-interface/print/pdf/strings'] = array(
'title' => 'Text strings',
'description' => 'Override the user-facing strings used in the PDF version.',
'page callback' => 'drupal_get_form',
'page arguments' => array(
'print_pdf_strings_settings',
),
'access arguments' => array(
'administer print',
),
'weight' => 2,
'type' => MENU_LOCAL_TASK,
'file' => 'print_pdf.admin.inc',
);
return $items;
}
/**
* Implements hook_block_info().
*/
function print_pdf_block_info() {
$block['print_pdf-top']['info'] = t('Most PDFd');
$block['print_pdf-top']['cache'] = DRUPAL_CACHE_GLOBAL;
return $block;
}
/**
* Implements hook_block_view().
*/
function print_pdf_block_view($delta = 0) {
$block = array();
switch ($delta) {
case 'print_pdf-top':
$block['subject'] = t('Most PDFd');
$result = db_query_range("SELECT path FROM {print_pdf_page_counter} LEFT JOIN {node} n ON path = CONCAT('node/', n.nid) WHERE status <> 0 OR status IS NULL ORDER BY totalcount DESC", 0, 3)
->fetchAll();
if (count($result)) {
$block['content'] = '<div class="item-list"><ul>';
foreach ($result as $obj) {
$block['content'] .= '<li>' . l(_print_get_title($obj->path), $obj->path) . '</li>';
}
$block['content'] .= '</ul></div>';
}
break;
}
return $block;
}
/**
* Implements hook_requirements().
*/
function print_pdf_requirements($phase) {
$requirements = array();
$t = get_t();
switch ($phase) {
// At runtime, make sure that a PDF generation tool is selected
case 'runtime':
$print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', PRINT_PDF_PDF_TOOL_DEFAULT);
if (empty($print_pdf_pdf_tool)) {
$requirements['print_pdf_tool'] = array(
'title' => $t('Printer, email and PDF versions - PDF generation library'),
'value' => $t('No PDF tool selected'),
'description' => $t('Please configure it in the !url.', array(
'!url' => l($t('PDF settings page'), 'admin/config/user-interface/print/pdf'),
)),
'severity' => REQUIREMENT_ERROR,
);
}
else {
if (!is_file($print_pdf_pdf_tool) || !is_readable($print_pdf_pdf_tool)) {
$requirements['print_pdf_tool'] = array(
'title' => $t('Printer, email and PDF versions - PDF generation library'),
'value' => $t('File not found'),
'description' => $t('The currently selected PDF generation library (%file) is no longer accessible.', array(
'%file' => $print_pdf_pdf_tool,
)),
'severity' => REQUIREMENT_ERROR,
);
}
elseif (basename($print_pdf_pdf_tool) == 'dompdf_config.inc.php') {
if (variable_get('print_pdf_autoconfig', PRINT_PDF_AUTOCONFIG_DEFAULT)) {
$directory = 'public://' . PRINT_PDF_DOMPDF_CACHE_DIR_DEFAULT . '/fonts';
if (!is_dir($directory) || !is_writable($directory)) {
$requirements['print_pdf_tool'] = array(
'title' => $t('DOMPDF font cache directory'),
'value' => $t('Non-writable permissions'),
'description' => $t('You must change the %fontdir permissions to be writable, as dompdf requires write-access to that directory.', array(
'%fontdir' => $directory,
)),
'severity' => REQUIREMENT_ERROR,
);
}
}
}
elseif (basename($print_pdf_pdf_tool) == 'tcpdf.php') {
$version = _print_pdf_tcpdf_version();
if (version_compare($version, '5.9.001', '<')) {
$requirements['print_pdf_tool'] = array(
'title' => $t('Printer, email and PDF versions - PDF generation library'),
'value' => $t('Unsupported TCPDF version'),
'description' => $t('The currently selected version of TCPDF (@version) is not supported. Please update to a !url.', array(
'@version' => $version,
'!url' => l($t('newer version'), 'http://sourceforge.net/projects/tcpdf/files/latest'),
)),
'severity' => REQUIREMENT_ERROR,
);
}
else {
$requirements['print_pdf_tool'] = array(
'title' => $t('Printer, email and PDF versions - PDF generation library'),
'value' => $t('TCPDF') . ' ' . $version,
);
}
if (variable_get('print_pdf_autoconfig', PRINT_PDF_AUTOCONFIG_DEFAULT)) {
foreach (array(
'cache',
'images',
) as $dir) {
$directory = 'public://' . PRINT_PDF_TCPDF_CACHE_DIR_DEFAULT . '/' . $dir;
if (!is_dir($directory) || !is_writable($directory)) {
$requirements['print_pdf_tool_' . $dir] = array(
'title' => $t('TCPDF directory'),
'value' => $t('Non-writable permissions'),
'description' => $t('You must change the %fontdir permissions to be writable, as TCPDF requires write-access to that directory.', array(
'%fontdir' => $directory,
)),
'severity' => REQUIREMENT_ERROR,
);
}
}
}
}
elseif (drupal_substr(basename($print_pdf_pdf_tool, '.exe'), 0, 11) == 'wkhtmltopdf') {
if (function_exists('is_executable') && !is_executable($print_pdf_pdf_tool)) {
$requirements['print_pdf_tool'] = array(
'title' => $t('wkhtmltopdf library'),
'value' => $t('Non-executable permissions'),
'description' => $t('You must modify the permissions of the wkhtmltopdf file (%file) to make it executable.', array(
'%file' => $print_pdf_pdf_tool,
)),
'severity' => REQUIREMENT_ERROR,
);
}
else {
$version = _print_pdf_wkhtmltopdf_version();
if (version_compare($version, '0.9.6', '<')) {
$requirements['print_pdf_tool'] = array(
'title' => $t('Printer, email and PDF versions - PDF generation library'),
'value' => $t('Unsupported wkhtmltopdf version'),
'description' => $t('The currently selected version of wkhtmltopdf (@version) is not supported. Please update to a !url.', array(
'@version' => $version,
'!url' => l($t('newer version'), 'http://code.google.com/p/wkhtmltopdf/'),
)),
'severity' => REQUIREMENT_ERROR,
);
}
else {
$requirements['print_pdf_tool'] = array(
'title' => $t('Printer, email and PDF versions - PDF generation library'),
'value' => $t('wkhtmltopdf') . ' ' . $version,
);
}
}
}
}
break;
}
return $requirements;
}
/**
* Implements hook_node_view().
*/
function print_pdf_node_view($node, $view_mode) {
$print_pdf_link_pos = variable_get('print_pdf_link_pos', drupal_json_decode(PRINT_PDF_LINK_POS_DEFAULT));
$print_pdf_link_use_alias = variable_get('print_pdf_link_use_alias', PRINT_PDF_LINK_USE_ALIAS_DEFAULT);
foreach (array(
'node',
'comment',
) as $type) {
$allowed_type = print_pdf_link_allowed(array(
'type' => $type,
'node' => $node,
'view_mode' => $view_mode,
));
if ($allowed_type && !empty($print_pdf_link_pos['link'])) {
drupal_add_css(drupal_get_path('module', 'print') . '/css/printlinks.css');
$links = array();
$format = theme('print_pdf_format_link');
// Show book link
if ($allowed_type === PRINT_ALLOW_BOOK_LINK) {
$links['book_pdf'] = array(
'href' => PRINTPDF_PATH . '/book/export/html/' . $node->nid,
'title' => $format['text'],
'attributes' => $format['attributes'],
'html' => $format['html'],
);
}
elseif ($allowed_type === PRINT_ALLOW_NORMAL_LINK) {
$path = $print_pdf_link_use_alias && ($alias = drupal_lookup_path('alias', 'node/' . $node->nid)) ? $alias : $node->nid;
$links['print_pdf'] = array(
'href' => PRINTPDF_PATH . '/' . $path,
'title' => $format['text'],
'attributes' => $format['attributes'],
'html' => $format['html'],
'query' => print_query_string_encode($_GET, array(
'q',
)),
);
}
$link_content = array(
'#theme' => 'links',
'#links' => $links,
'#attributes' => array(
'class' => array(
'links',
'inline',
),
),
);
if ($type == 'node') {
$node->content['links']['print_pdf'] = $link_content;
}
elseif ($type == 'comment' && isset($node->content['comments']['comments'])) {
foreach ($node->content['comments']['comments'] as $cid => $comment) {
if (is_numeric($cid)) {
$link_content['#links']['print_pdf']['query']['comment'] = $cid;
$node->content['comments']['comments'][$cid]['links']['print_pdf'] = $link_content;
}
}
}
}
}
// Insert content corner links
if (!empty($print_pdf_link_pos['corner']) && $view_mode == 'full') {
$node->content['print_links']['#markup'] .= print_pdf_insert_link(NULL, $node);
}
}
/**
* Implements hook_help().
*/
function print_pdf_help($path, $arg) {
$print_pdf_link_pos = variable_get('print_pdf_link_pos', drupal_json_decode(PRINT_PDF_LINK_POS_DEFAULT));
if ($path !== 'node/%' && !empty($print_pdf_link_pos['help'])) {
static $output = FALSE;
if ($output === FALSE) {
$output = TRUE;
$link = print_pdf_insert_link();
if ($link) {
return "<span class='print-syslink'>{$link}</span>";
}
}
}
}
/**
* Implements hook_node_load().
*/
function print_pdf_node_load($nodes, $types) {
$ids = array();
foreach ($nodes as $node) {
$ids[] = $node->nid;
}
$result = db_query('SELECT nid, link, comments, url_list FROM {print_pdf_node_conf} WHERE nid IN (:nids)', array(
':nids' => $ids,
))
->fetchAllAssoc('nid');
foreach ($nodes as $node) {
$node->print_pdf_display = isset($result[$node->nid]) ? intval($result[$node->nid]->link) : variable_get('print_pdf_display_' . $node->type, PRINT_TYPE_SHOW_LINK_DEFAULT);
$node->print_pdf_display_comment = isset($result[$node->nid]) ? intval($result[$node->nid]->comments) : variable_get('print_pdf_display_comment_' . $node->type, PRINT_TYPE_COMMENT_LINK_DEFAULT);
$node->print_pdf_display_urllist = isset($result[$node->nid]) ? intval($result[$node->nid]->url_list) : variable_get('print_pdf_display_urllist_' . $node->type, PRINT_TYPE_URLLIST_DEFAULT);
}
}
/**
* Implements hook_node_insert().
*/
function print_pdf_node_insert($node) {
if (user_access('administer print') || user_access('node-specific print configuration')) {
if (!isset($node->print_pdf_display)) {
$node->print_pdf_display = variable_get('print_pdf_display_' . $node->type, PRINT_TYPE_SHOW_LINK_DEFAULT);
}
if (!isset($node->print_pdf_display_comment)) {
$node->print_pdf_display_comment = variable_get('print_pdf_display_comment_' . $node->type, PRINT_TYPE_COMMENT_LINK_DEFAULT);
}
if (!isset($node->print_pdf_display_urllist)) {
$node->print_pdf_display_urllist = variable_get('print_pdf_display_urllist_' . $node->type, PRINT_TYPE_URLLIST_DEFAULT);
}
_print_pdf_node_conf_modify($node->nid, $node->print_pdf_display, $node->print_pdf_display_comment, $node->print_pdf_display_urllist);
}
}
/**
* Implements hook_node_update().
*/
function print_pdf_node_update($node) {
if (user_access('administer print') || user_access('node-specific print configuration')) {
if (!isset($node->print_pdf_display) || $node->print_pdf_display === NULL) {
$node->print_pdf_display = variable_get('print_pdf_display_' . $node->type, PRINT_TYPE_SHOW_LINK_DEFAULT);
}
if (!isset($node->print_pdf_display_comment) || $node->print_pdf_display_comment === NULL) {
$node->print_pdf_display_comment = variable_get('print_pdf_display_comment_' . $node->type, PRINT_TYPE_COMMENT_LINK_DEFAULT);
}
if (!isset($node->print_pdf_display_urllist) || $node->print_pdf_display_urllist === NULL) {
$node->print_pdf_display_urllist = variable_get('print_pdf_display_urllist_' . $node->type, PRINT_TYPE_URLLIST_DEFAULT);
}
_print_pdf_node_conf_modify($node->nid, $node->print_pdf_display, $node->print_pdf_display_comment, $node->print_pdf_display_urllist);
}
}
/**
* Implements hook_node_delete().
*/
function print_pdf_node_delete($node) {
db_delete('print_pdf_node_conf')
->condition('nid', $node->nid)
->execute();
db_delete('print_pdf_page_counter')
->condition('path', 'node/' . $node->nid)
->execute();
}
/**
* Implements hook_form_alter().
*/
function print_pdf_form_alter(&$form, &$form_state, $form_id) {
// Add the node-type settings option to activate the PDF version link
if ((user_access('administer print') || user_access('node-specific print configuration')) && ($form_id == 'node_type_form' || !empty($form['#node_edit_form']))) {
$form['print']['pdf_label'] = array(
'#type' => 'markup',
'#markup' => '<p><strong>' . t('PDF version') . '</strong></p>',
);
$form['print']['print_pdf_display'] = array(
'#type' => 'checkbox',
'#title' => t('Show link'),
);
$form['print']['print_pdf_display_comment'] = array(
'#type' => 'checkbox',
'#title' => t('Show link in individual comments'),
);
$form['print']['print_pdf_display_urllist'] = array(
'#type' => 'checkbox',
'#title' => t('Show Printer-friendly URLs list'),
);
if ($form_id == 'node_type_form') {
$form['print']['print_pdf_display']['#default_value'] = variable_get('print_pdf_display_' . $form['#node_type']->type, PRINT_TYPE_SHOW_LINK_DEFAULT);
$form['print']['print_pdf_display_comment']['#default_value'] = variable_get('print_pdf_display_comment_' . $form['#node_type']->type, PRINT_TYPE_COMMENT_LINK_DEFAULT);
$form['print']['print_pdf_display_urllist']['#default_value'] = variable_get('print_pdf_display_urllist_' . $form['#node_type']->type, PRINT_TYPE_URLLIST_DEFAULT);
}
else {
$node = $form['#node'];
$form['print']['print_pdf_display']['#default_value'] = isset($node->print_pdf_display) ? $node->print_pdf_display : variable_get('print_pdf_display_' . $node->type, PRINT_TYPE_SHOW_LINK_DEFAULT);
$form['print']['print_pdf_display_comment']['#default_value'] = isset($node->print_pdf_display_comment) ? $node->print_pdf_display_comment : variable_get('print_pdf_display_comment_' . $node->type, PRINT_TYPE_COMMENT_LINK_DEFAULT);
$form['print']['print_pdf_display_urllist']['#default_value'] = isset($node->print_pdf_display_urllist) ? $node->print_pdf_display_urllist : variable_get('print_pdf_display_urllist_' . $node->type, PRINT_TYPE_URLLIST_DEFAULT);
}
}
}
/**
* Update the print_pdf_node_conf table to reflect the given attributes
*
* If updating to the default values, delete the record.
*
* @param $nid
* value of the nid field (primary key)
* @param $link
* value of the link field (0 or 1)
* @param $comments
* value of the comments field (0 or 1)
* @param $url_list
* value of the url_list field (0 or 1)
*/
function _print_pdf_node_conf_modify($nid, $link, $comments, $url_list) {
db_merge('print_pdf_node_conf')
->key(array(
'nid' => $nid,
))
->fields(array(
'link' => $link,
'comments' => $comments,
'url_list' => $url_list,
))
->execute();
}
/**
* Format the PDF version link
*
* @return
* array of formatted attributes
* @ingroup themeable
*/
function theme_print_pdf_format_link() {
$print_pdf_link_class = variable_get('print_pdf_link_class', PRINT_PDF_LINK_CLASS_DEFAULT);
$print_pdf_content_disposition = variable_get('print_pdf_content_disposition', PRINT_PDF_CONTENT_DISPOSITION_DEFAULT);
$print_pdf_show_link = variable_get('print_pdf_show_link', PRINT_PDF_SHOW_LINK_DEFAULT);
$print_pdf_link_text = filter_xss(variable_get('print_pdf_link_text', t('PDF version')));
$img = drupal_get_path('module', 'print') . '/icons/pdf_icon.gif';
$title = t('Display a PDF version of this page.');
$class = strip_tags($print_pdf_link_class);
$new_window = $print_pdf_content_disposition == 1;
$format = _print_format_link_aux($print_pdf_show_link, $print_pdf_link_text, $img);
return array(
'text' => $format['text'],
'html' => $format['html'],
'attributes' => print_fill_attributes($title, $class, $new_window),
);
}
/**
* Auxiliary function to display a formatted PDF version link
*
* Function made available so that developers may call this function from
* their defined pages/blocks.
*
* @param $path
* path of the original page (optional). If not specified, the current URL
* is used
* @param $node
* an optional node object, to be used in defining the path, if used, the
* path argument is irrelevant
* @return
* string with the HTML link to the printer-friendly page
*/
function print_pdf_insert_link($path = NULL, $node = NULL) {
if ($node !== NULL) {
$nid = $node->nid;
$path = 'node/' . $nid;
$allowed_type = print_pdf_link_allowed(array(
'node' => $node,
));
}
else {
if ($path === NULL) {
$nid = preg_replace('!^node/([\\d]+)!', '$1', $_GET['q']);
$path = $_GET['q'];
}
else {
$nid = NULL;
}
$allowed_type = print_pdf_link_allowed(array(
'path' => $path,
));
}
if ($allowed_type) {
if ($nid !== NULL) {
if ($allowed_type === PRINT_ALLOW_BOOK_LINK) {
$path = 'book/export/html/' . $nid;
}
else {
if (variable_get('print_pdf_link_use_alias', PRINT_PDF_LINK_USE_ALIAS_DEFAULT) && ($alias = drupal_lookup_path('alias', $path))) {
$path = $alias;
}
else {
$path = $nid;
}
}
$path = PRINTPDF_PATH . '/' . $path;
$query = print_query_string_encode($_GET, array(
'q',
));
}
else {
$query = NULL;
}
drupal_add_css(drupal_get_path('module', 'print') . '/css/printlinks.css');
$format = theme('print_pdf_format_link');
return '<span class="print_pdf">' . l($format['text'], $path, array(
'attributes' => $format['attributes'],
'query' => $query,
'absolute' => TRUE,
'html' => $format['html'],
)) . '</span>';
}
else {
return FALSE;
}
}
/**
* Check if the link to the PDF version is allowed depending on the settings
*
* @param $args
* array containing the possible parameters:
* teaser, node, type, path
* @return
* FALSE if not allowed
* PRINT_ALLOW_NORMAL_LINK if a normal link is allowed
* PRINT_ALLOW_BOOK_LINK if a link is allowed in a book node
*/
function print_pdf_link_allowed($args) {
$view_mode = isset($args['view_mode']) ? $args['view_mode'] : '';
$print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', PRINT_PDF_PDF_TOOL_DEFAULT);
if ($view_mode == 'teaser' && !variable_get('print_pdf_link_teaser', PRINT_PDF_LINK_TEASER_DEFAULT) || !in_array($view_mode, array(
'full',
'teaser',
'',
)) || !user_access('access PDF version') || empty($print_pdf_pdf_tool)) {
// If the teaser link is disabled or the user is not allowed
return FALSE;
}
if (!empty($args['path'])) {
$nid = preg_replace('!^node/!', '', drupal_get_normal_path($args['path']));
if (ctype_digit($nid)) {
$args['node'] = node_load($nid);
}
}
if (!empty($args['node'])) {
static $node_type = FALSE;
$node = $args['node'];
if (isset($node->type)) {
$node_type = $node->type;
}
// Node
$print_pdf_node_link_visibility = variable_get('print_pdf_node_link_visibility', PRINT_PDF_NODE_LINK_VISIBILITY_DEFAULT);
$print_pdf_node_link_pages = variable_get('print_pdf_node_link_pages', PRINT_PDF_NODE_LINK_PAGES_DEFAULT);
if (!_print_page_match($print_pdf_node_link_visibility, "node/" . $node->nid, $print_pdf_node_link_pages)) {
// Page not in visibility list
return FALSE;
}
elseif (isset($args['type']) && $args['type'] == 'comment' && isset($node_type)) {
// Link is for a comment, return the configured setting
// Cache this statically to avoid duplicate queries for every comment.
static $res = array();
if (!isset($res[$node->nid])) {
$res[$node->nid] = db_query("SELECT comments FROM {print_pdf_node_conf} WHERE nid = :nid", array(
':nid' => $node->nid,
))
->fetchField();
}
$print_display_comment = $res && $res[$node->nid] !== FALSE ? $res[$node->nid] : variable_get('print_pdf_display_comment_' . $node_type, PRINT_TYPE_COMMENT_LINK_DEFAULT);
if ($print_display_comment) {
return PRINT_ALLOW_NORMAL_LINK;
}
}
else {
// Node link
if (isset($node->print_pdf_display) && !$node->print_pdf_display) {
// Link for this node is disabled
return FALSE;
}
elseif (isset($node->book)) {
// Node is a book;
$print_pdf_book_link = variable_get('print_pdf_book_link', PRINT_PDF_BOOK_LINK_DEFAULT);
switch ($print_pdf_book_link) {
case 1:
if (user_access('access printer-friendly version')) {
return PRINT_ALLOW_BOOK_LINK;
}
break;
case 2:
return PRINT_ALLOW_NORMAL_LINK;
}
}
else {
return PRINT_ALLOW_NORMAL_LINK;
}
}
}
else {
// 'System' page
$print_pdf_sys_link_visibility = variable_get('print_pdf_sys_link_visibility', PRINT_PDF_SYS_LINK_VISIBILITY_DEFAULT);
$print_pdf_sys_link_pages = variable_get('print_pdf_sys_link_pages', PRINT_PDF_SYS_LINK_PAGES_DEFAULT);
return _print_page_match($print_pdf_sys_link_visibility, $_GET['q'], $print_pdf_sys_link_pages);
}
return FALSE;
}
/**
* Find out the version of the TCPDF library
*/
function _print_pdf_tcpdf_version() {
$print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', PRINT_PDF_PDF_TOOL_DEFAULT);
if (variable_get('print_pdf_autoconfig', PRINT_PDF_AUTOCONFIG_DEFAULT)) {
// prevent TCPDF default configs
define('K_TCPDF_EXTERNAL_CONFIG', TRUE);
}
require_once DRUPAL_ROOT . '/' . $print_pdf_pdf_tool;
// Hide warnings, as some TCPDF constants may still be undefined
if (class_exists('TCPDF')) {
@($pdf = new TCPDF());
if (class_exists('TCPDF_STATIC')) {
return TCPDF_STATIC::getTCPDFVersion();
}
elseif (method_exists($pdf, 'getTCPDFVersion')) {
return $pdf
->getTCPDFVersion();
}
elseif (defined('PDF_PRODUCER')) {
sscanf(PDF_PRODUCER, "TCPDF %s", $version);
return $version;
}
}
return 'unknown';
}
/**
* Find out the version of the wkhtmltopdf library
*/
function _print_pdf_wkhtmltopdf_version() {
$print_pdf_pdf_tool = variable_get('print_pdf_pdf_tool', PRINT_PDF_PDF_TOOL_DEFAULT);
$descriptor = array(
0 => array(
'pipe',
'r',
),
1 => array(
'pipe',
'w',
),
2 => array(
'pipe',
'w',
),
);
$cmd = '"' . realpath($print_pdf_pdf_tool) . '" --version';
$process = proc_open($cmd, $descriptor, $pipes, NULL, NULL);
if (is_resource($process)) {
$content = stream_get_contents($pipes[1]);
$out = preg_match('!.*?(\\d+\\.\\d+\\.\\d+).*$!m', $content, $matches);
fclose($pipes[0]);
fclose($pipes[1]);
fclose($pipes[2]);
$retval = proc_close($process);
}
return $matches[1];
}
/**
* Implements hook_views_api().
*/
function print_pdf_views_api() {
return array(
'api' => 2.0,
'path' => drupal_get_path('module', 'print_pdf'),
);
}