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define('FILTER_FORMAT_DEFAULT', 0);
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function filter_help($path, $arg) {
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case 'admin/help#filter':
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$output = '<p>' . t("The filter module allows administrators to configure text formats for use on your site. A text format defines the HTML tags, codes, and other input allowed in both content and comments, and is a key feature in guarding against potentially damaging input from malicious users. Two formats included by default are <em>Filtered HTML</em> (which allows only an administrator-approved subset of HTML tags) and <em>Full HTML</em> (which allows the full set of HTML tags). Additional formats may be created by an administrator.") . '</p>';
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$output .= '<p>' . t('Each text format uses filters to manipulate text, and most formats apply several different filters to text in a specific order. Each filter is designed for a specific purpose, and generally either adds, removes or transforms elements within user-entered text before it is displayed. A filter does not change the actual content of a post, but instead, modifies it temporarily before it is displayed. A filter may remove unapproved HTML tags, for instance, while another automatically adds HTML to make links referenced in text clickable.') . '</p>';
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$output .= '<p>' . t('Users with access to more than one text format can use the <em>Text format</em> fieldset to choose between available text formats when creating or editing multi-line content. Administrators determine the text formats available to each user role, select a default text format, and control the order of formats listed in the <em>Text format</em> fieldset.') . '</p>';
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$output .= '<p>' . t('For more information, see the online handbook entry for <a href="@filter">Filter module</a>.', array('@filter' => 'http://drupal.org/handbook/modules/filter/')) . '</p>';
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return $output;
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case 'admin/settings/formats':
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$output = '<p>' . t('Use the list below to review the text formats available to each user role, to select a default text format, and to control the order of formats listed in the <em>Text format</em> fieldset. (The <em>Text format</em> fieldset is displayed below textareas when users with access to more than one text format create multi-line content.) The text format selected as <em>Default</em> is available to all users and, unless another format is selected, is applied to all content. All text formats are available to users in roles with the "administer filters" permission.') . '</p>';
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$output .= '<p>' . t('Since text formats, if available, are presented in the same order as the list below, it may be helpful to arrange the formats in descending order of your preference for their use. Remember that your changes will not be saved until you click the <em>Save changes</em> button at the bottom of the page.') . '</p>';
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return $output;
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case 'admin/settings/formats/%':
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return '<p>' . t('Every <em>filter</em> performs one particular change on the user input, for example stripping out malicious HTML or making URLs clickable. Choose which filters you want to apply to text in this format. If you notice some filters are causing conflicts in the output, you can <a href="@rearrange">rearrange them</a>.', array('@rearrange' => url('admin/settings/formats/' . $arg[3] . '/order'))) . '</p>';
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case 'admin/settings/formats/%/configure':
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return '<p>' . t('If you cannot find the settings for a certain filter, make sure you have enabled it on the <a href="@url">edit tab</a> first.', array('@url' => url('admin/settings/formats/' . $arg[3]))) . '</p>';
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case 'admin/settings/formats/%/order':
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$output = '<p>' . t('Because of the flexible filtering system, you might encounter a situation where one filter prevents another from doing its job. For example: a word in an URL gets converted into a glossary term, before the URL can be converted to a clickable link. When this happens, rearrange the order of the filters.') . '</p>';
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$output .= '<p>' . t("Filters are executed from top-to-bottom. To change the order of the filters, modify the values in the <em>Weight</em> column or grab a drag-and-drop handle under the <em>Name</em> column and drag filters to new locations in the list. (Grab a handle by clicking and holding the mouse while hovering over a handle icon.) Remember that your changes will not be saved until you click the <em>Save configuration</em> button at the bottom of the page.") . '</p>';
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return $output;
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}
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}
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function filter_theme() {
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'arguments' => array('form' => NULL),
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'file' => 'filter.admin.inc',
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),
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'arguments' => array('form' => NULL),
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'file' => 'filter.admin.inc',
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),
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'arguments' => array('tips' => NULL, 'long' => FALSE),
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'file' => 'filter.pages.inc',
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),
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'arguments' => array(),
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),
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'arguments' => array('format' => NULL),
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),
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);
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}
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function filter_menu() {
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$items['admin/settings/formats'] = array(
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'title' => 'Text formats',
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'description' => 'Configure how content input by users is filtered, including allowed HTML tags. Also allows enabling of module-provided filters.',
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'page callback' => 'drupal_get_form',
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'page arguments' => array('filter_admin_overview'),
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'access arguments' => array('administer filters'),
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$items['admin/settings/formats/list'] = array(
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'title' => 'List',
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'type' => MENU_DEFAULT_LOCAL_TASK,
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$items['admin/settings/formats/add'] = array(
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'title' => 'Add text format',
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'page callback' => 'filter_admin_format_page',
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'access arguments' => array('administer filters'),
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'type' => MENU_LOCAL_TASK,
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'weight' => 1,
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$items['admin/settings/formats/delete'] = array(
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'title' => 'Delete text format',
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'page callback' => 'drupal_get_form',
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'page arguments' => array('filter_admin_delete'),
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'access arguments' => array('administer filters'),
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'type' => MENU_CALLBACK,
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$items['filter/tips'] = array(
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'title' => 'Compose tips',
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'page callback' => 'filter_tips_long',
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'access callback' => TRUE,
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'type' => MENU_SUGGESTED_ITEM,
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$items['admin/settings/formats/%filter_format'] = array(
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'type' => MENU_CALLBACK,
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'title callback' => 'filter_admin_format_title',
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'title arguments' => array(3),
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'page callback' => 'filter_admin_format_page',
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'page arguments' => array(3),
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'access arguments' => array('administer filters'),
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$items['admin/settings/formats/%filter_format/edit'] = array(
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'title' => 'Edit',
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'type' => MENU_DEFAULT_LOCAL_TASK,
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'weight' => 0,
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$items['admin/settings/formats/%filter_format/configure'] = array(
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'title' => 'Configure',
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'page callback' => 'filter_admin_configure_page',
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'page arguments' => array(3),
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'access arguments' => array('administer filters'),
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'type' => MENU_LOCAL_TASK,
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'weight' => 1,
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$items['admin/settings/formats/%filter_format/order'] = array(
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'title' => 'Rearrange',
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'page callback' => 'filter_admin_order_page',
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'page arguments' => array(3),
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'access arguments' => array('administer filters'),
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'type' => MENU_LOCAL_TASK,
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'weight' => 2,
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return $items;
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}
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function filter_format_load($arg) {
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return filter_formats($arg);
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}
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function filter_admin_format_title($format) {
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return $format->name;
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}
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function filter_permission() {
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'title' => t('Administer filters'),
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'description' => t('Manage text formats and filters, and select which roles may use them. %warning', array('%warning' => t('Warning: Give to trusted roles only; this permission has security implications.'))),
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),
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);
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}
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function filter_cron() {
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cache_clear_all(NULL, 'cache_filter');
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}
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function _filter_html_tips($format, $long = FALSE) {
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global $base_url;
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if ($allowed_html = variable_get("allowed_html_$format", '<a> <em> <strong> <cite> <blockquote> <code> <ul> <ol> <li> <dl> <dt> <dd>')) {
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if ($long) {
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$output = '<p>' . t('Allowed HTML tags: @tags', array('@tags' => $allowed_html)) . '</p>';
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if (!variable_get("filter_html_help_$format", 1)) {
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return $output;
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}
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$output .= '<p>' . t('This site allows HTML content. While learning all of HTML may feel intimidating, learning how to use a very small number of the most basic HTML "tags" is very easy. This table provides examples for each tag that is enabled on this site.') . '</p>';
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$output .= '<p>' . t('For more information see W3C\'s <a href="@html-specifications">HTML Specifications</a> or use your favorite search engine to find other sites that explain HTML.', array('@html-specifications' => 'http://www.w3.org/TR/html/')) . '</p>';
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'a' => array( t('Anchors are used to make links to other pages.'), '<a href="' . $base_url . '">' . variable_get('site_name', 'Drupal') . '</a>'),
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'br' => array( t('By default line break tags are automatically added, so use this tag to add additional ones. Use of this tag is different because it is not used with an open/close pair like all the others. Use the extra " /" inside the tag to maintain XHTML 1.0 compatibility'), t('Text with <br />line break')),
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'p' => array( t('By default paragraph tags are automatically added, so use this tag to add additional ones.'), '<p>' . t('Paragraph one.') . '</p> <p>' . t('Paragraph two.') . '</p>'),
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'strong' => array( t('Strong'), '<strong>' . t('Strong') . '</strong>'),
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'em' => array( t('Emphasized'), '<em>' . t('Emphasized') . '</em>'),
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'cite' => array( t('Cited'), '<cite>' . t('Cited') . '</cite>'),
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'code' => array( t('Coded text used to show programming source code'), '<code>' . t('Coded') . '</code>'),
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'b' => array( t('Bolded'), '<b>' . t('Bolded') . '</b>'),
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'u' => array( t('Underlined'), '<u>' . t('Underlined') . '</u>'),
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'i' => array( t('Italicized'), '<i>' . t('Italicized') . '</i>'),
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'sup' => array( t('Superscripted'), t('<sup>Super</sup>scripted')),
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'sub' => array( t('Subscripted'), t('<sub>Sub</sub>scripted')),
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'pre' => array( t('Preformatted'), '<pre>' . t('Preformatted') . '</pre>'),
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'abbr' => array( t('Abbreviation'), t('<abbr title="Abbreviation">Abbrev.</abbr>')),
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'acronym' => array( t('Acronym'), t('<acronym title="Three-Letter Acronym">TLA</acronym>')),
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'blockquote' => array( t('Block quoted'), '<blockquote>' . t('Block quoted') . '</blockquote>'),
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'q' => array( t('Quoted inline'), '<q>' . t('Quoted inline') . '</q>'),
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'table' => array( t('Table'), '<table> <tr><th>' . t('Table header') . '</th></tr> <tr><td>' . t('Table cell') . '</td></tr> </table>'),
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'tr' => NULL, 'td' => NULL, 'th' => NULL,
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'del' => array( t('Deleted'), '<del>' . t('Deleted') . '</del>'),
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'ins' => array( t('Inserted'), '<ins>' . t('Inserted') . '</ins>'),
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'ol' => array( t('Ordered list - use the <li> to begin each list item'), '<ol> <li>' . t('First item') . '</li> <li>' . t('Second item') . '</li> </ol>'),
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'ul' => array( t('Unordered list - use the <li> to begin each list item'), '<ul> <li>' . t('First item') . '</li> <li>' . t('Second item') . '</li> </ul>'),
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'li' => NULL,
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'dl' => array( t('Definition lists are similar to other HTML lists. <dl> begins the definition list, <dt> begins the definition term and <dd> begins the definition description.'), '<dl> <dt>' . t('First term') . '</dt> <dd>' . t('First definition') . '</dd> <dt>' . t('Second term') . '</dt> <dd>' . t('Second definition') . '</dd> </dl>'),
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'dt' => NULL, 'dd' => NULL,
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'h1' => array( t('Heading'), '<h1>' . t('Title') . '</h1>'),
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'h2' => array( t('Heading'), '<h2>' . t('Subtitle') . '</h2>'),
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'h3' => array( t('Heading'), '<h3>' . t('Subtitle three') . '</h3>'),
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'h4' => array( t('Heading'), '<h4>' . t('Subtitle four') . '</h4>'),
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'h5' => array( t('Heading'), '<h5>' . t('Subtitle five') . '</h5>'),
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'h6' => array( t('Heading'), '<h6>' . t('Subtitle six') . '</h6>')
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);
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$header = array(t('Tag Description'), t('You Type'), t('You Get'));
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preg_match_all('/<([a-z0-9]+)[^a-z0-9]/i', $allowed_html, $out);
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foreach ($out[1] as $tag) {
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if (array_key_exists($tag, $tips)) {
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if ($tips[$tag]) {
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$rows[] = array(
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array('data' => $tips[$tag][0], 'class' => 'description'),
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array('data' => '<code>' . check_plain($tips[$tag][1]) . '</code>', 'class' => 'type'),
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array('data' => $tips[$tag][1], 'class' => 'get')
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);
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}
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}
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$rows[] = array(
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array('data' => t('No help provided for tag %tag.', array('%tag' => $tag)), 'class' => 'description', 'colspan' => 3),
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}
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$output .= theme('table', $header, $rows);
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$output .= '<p>' . t('Most unusual characters can be directly entered without any problems.') . '</p>';
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$output .= '<p>' . t('If you do encounter problems, try using HTML character entities. A common example looks like &amp; for an ampersand & character. For a full list of entities see HTML\'s <a href="@html-entities">entities</a> page. Some of the available characters include:', array('@html-entities' => 'http://www.w3.org/TR/html4/sgml/entities.html')) . '</p>';
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array( t('Ampersand'), '&'),
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array( t('Greater than'), '>'),
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array( t('Less than'), '<'),
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array( t('Quotation mark'), '"'),
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);
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$header = array(t('Character Description'), t('You Type'), t('You Get'));
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unset($rows);
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foreach ($entities as $entity) {
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$rows[] = array(
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array('data' => $entity[0], 'class' => 'description'),
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array('data' => '<code>' . check_plain($entity[1]) . '</code>', 'class' => 'type'),
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array('data' => $entity[1], 'class' => 'get')
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);
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}
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$output .= theme('table', $header, $rows);
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return $output;
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}
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return t('Allowed HTML tags: @tags', array('@tags' => $allowed_html));
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}
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}
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function _filter_autop_tips($format, $long = FALSE) {
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if ($long) {
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return t('Lines and paragraphs are automatically recognized. The <br /> line break, <p> paragraph and </p> close paragraph tags are inserted automatically. If paragraphs are not recognized simply add a couple blank lines.');
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}
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| 274 |
return t('Lines and paragraphs break automatically.');
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}
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function _filter_url_tips() {
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return t('Web page addresses and e-mail addresses turn into links automatically.');
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}
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| 282 |
function _filter_html_escape_tips() {
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| 283 |
return t('No HTML tags allowed.');
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| 284 |
}
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| 286 |
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| 287 |
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| 288 |
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| 289 |
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| 290 |
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| 291 |
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function filter_formats($index = NULL) {
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| 293 |
global $user;
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| 294 |
static $formats;
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| 296 |
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| 297 |
$all = user_access('administer filters');
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| 298 |
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| 299 |
if (!isset($formats)) {
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| 300 |
$formats = array();
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| 301 |
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| 302 |
$query = db_select('filter_format', 'f');
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| 303 |
$query->addField('f', 'format', 'format');
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| 304 |
$query->addField('f', 'name', 'name');
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| 305 |
$query->addField('f', 'roles', 'roles');
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| 306 |
$query->addField('f', 'cache', 'cache');
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| 307 |
$query->addField('f', 'weight', 'weight');
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| 308 |
$query->orderBy('weight');
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| 309 |
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| 310 |
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| 311 |
if (!$all) {
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$or = db_or()->condition('format', variable_get('filter_default_format', 1));
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| 313 |
foreach ($user->roles as $rid => $role) {
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$or->condition('roles', '%' . (int)$rid . '%', 'LIKE');
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}
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| 316 |
$query->condition($or);
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| 317 |
}
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| 318 |
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| 319 |
$formats = $query->execute()->fetchAllAssoc('format');
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| 320 |
}
|
| 321 |
if (isset($index)) {
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| 322 |
return isset($formats[$index]) ? $formats[$index] : FALSE;
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| 323 |
}
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| 324 |
return $formats;
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| 325 |
}
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| 326 |
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| 327 |
|
| 328 |
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| 329 |
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| 330 |
function filter_list_all() {
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| 331 |
$filters = array();
|
| 332 |
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| 333 |
foreach (module_implements('filter_info') as $module) {
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| 334 |
$function = $module . '_filter_info';
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| 335 |
$info = $function('list');
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| 336 |
if (isset($info) && is_array($info)) {
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| 337 |
foreach ($info as $delta => $filter) {
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| 338 |
$filters[$module . '/' . $delta] = (object)($filter + array(
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| 339 |
'module' => $module,
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'delta' => $delta,
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));
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}
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}
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}
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uasort($filters, '_filter_list_cmp');
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return $filters;
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}
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| 351 |
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| 352 |
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| 353 |
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| 354 |
function _filter_list_cmp($a, $b) {
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| 355 |
return strcmp($a->name, $b->name);
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}
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| 357 |
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| 358 |
|
| 359 |
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| 360 |
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| 361 |
function filter_resolve_format($format) {
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| 362 |
return $format == FILTER_FORMAT_DEFAULT ? variable_get('filter_default_format', 1) : $format;
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}
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| 364 |
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| 365 |
|
| 366 |
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| 367 |
function filter_format_allowcache($format) {
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| 368 |
static $cache = array();
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$format = filter_resolve_format($format);
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| 370 |
if (!isset($cache[$format])) {
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$cache[$format] = db_query('SELECT cache FROM {filter_format} WHERE format = :format', array(':format' => $format))->fetchField();
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}
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return $cache[$format];
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}
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| 375 |
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| 376 |
|
| 377 |
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| 378 |
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| 379 |
function filter_list_format($format) {
|
| 380 |
static $filters = array();
|
| 381 |
|
| 382 |
if (!isset($filters[$format])) {
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$filters[$format] = array();
|
| 384 |
$result = db_query("SELECT * FROM {filter} WHERE format = :format ORDER BY weight, module, delta", array(':format' => (int) $format));
|
| 385 |
foreach ($result as $filter) {
|
| 386 |
$info = module_invoke($filter->module, 'filter_info');
|
| 387 |
if (isset($info) && is_array($info) && isset($info[$filter->delta])) {
|
| 388 |
$filter->name = $info[$filter->delta]['name'];
|
| 389 |
$filters[$format][$filter->module . '/' . $filter->delta] = $filter;
|
| 390 |
}
|
| 391 |
}
|
| 392 |
}
|
| 393 |
|
| 394 |
return $filters[$format];
|
| 395 |
}
|
| 396 |
|
| 397 |
|
| 398 |
|
| 399 |
|
| 400 |
|
| 401 |
|
| 402 |
|
| 403 |
|
| 404 |
|
| 405 |
|
| 406 |
|
| 407 |
|
| 408 |
|
| 409 |
|
| 410 |
|
| 411 |
|
| 412 |
|
| 413 |
|
| 414 |
|
| 415 |
|
| 416 |
|
| 417 |
|
| 418 |
|
| 419 |
|
| 420 |
|
| 421 |
|
| 422 |
|
| 423 |
|
| 424 |
|
| 425 |
|
| 426 |
|
| 427 |
|
| 428 |
|
| 429 |
|
| 430 |
|
| 431 |
|
| 432 |
|
| 433 |
|
| 434 |
|
| 435 |
function check_markup($text, $format = FILTER_FORMAT_DEFAULT, $langcode = '', $check = TRUE, $cache = TRUE) {
|
| 436 |
|
| 437 |
if (isset($text) && (!$check || filter_access($format))) {
|
| 438 |
$format = filter_resolve_format($format);
|
| 439 |
|
| 440 |
|
| 441 |
$cache_id = $format . ':' . $langcode . ':' . md5($text);
|
| 442 |
if ($cache && $cached = cache_get($cache_id, 'cache_filter')) {
|
| 443 |
return $cached->data;
|
| 444 |
}
|
| 445 |
|
| 446 |
|
| 447 |
|
| 448 |
$text = str_replace(array("\r\n", "\r"), "\n", $text);
|
| 449 |
|
| 450 |
|
| 451 |
$filters = filter_list_format($format);
|
| 452 |
|
| 453 |
|
| 454 |
foreach ($filters as $filter) {
|
| 455 |
$filter_info = module_invoke($filter->module, 'filter_info');
|
| 456 |
if (isset($filter_info[$filter->delta]['prepare callback']) && drupal_function_exists($filter_info[$filter->delta]['prepare callback'])) {
|
| 457 |
$text = call_user_func($filter_info[$filter->delta]['prepare callback'], $text, $format, $langcode, $cache_id);
|
| 458 |
}
|
| 459 |
}
|
| 460 |
|
| 461 |
|
| 462 |
foreach ($filters as $filter) {
|
| 463 |
$filter_info = module_invoke($filter->module, 'filter_info');
|
| 464 |
if (isset($filter_info[$filter->delta]['process callback']) && drupal_function_exists($filter_info[$filter->delta]['process callback'])) {
|
| 465 |
$text = call_user_func($filter_info[$filter->delta]['process callback'], $text, $format, $langcode, $cache_id);
|
| 466 |
}
|
| 467 |
}
|
| 468 |
|
| 469 |
|
| 470 |
if ($cache && filter_format_allowcache($format)) {
|
| 471 |
cache_set($cache_id, $text, 'cache_filter', REQUEST_TIME + (60 * 60 * 24));
|
| 472 |
}
|
| 473 |
}
|
| 474 |
|
| 475 |
$text = t('n/a');
|
| 476 |
|
| 477 |
|
| 478 |
return $text;
|
| 479 |
}
|
| 480 |
|
| 481 |
|
| 482 |
|
| 483 |
|
| 484 |
|
| 485 |
|
| 486 |
|
| 487 |
|
| 488 |
|
| 489 |
|
| 490 |
|
| 491 |
|
| 492 |
|
| 493 |
|
| 494 |
function filter_form($value = FILTER_FORMAT_DEFAULT, $weight = NULL, $parents = array('format')) {
|
| 495 |
$value = filter_resolve_format($value);
|
| 496 |
$formats = filter_formats();
|
| 497 |
|
| 498 |
drupal_add_js('misc/form.js');
|
| 499 |
drupal_add_css(drupal_get_path('module', 'filter') . '/filter.css');
|
| 500 |
$element_id = form_clean_id('edit-' . implode('-', $parents));
|
| 501 |
|
| 502 |
|
| 503 |
'#type' => 'fieldset',
|
| 504 |
'#weight' => $weight,
|
| 505 |
'#attributes' => array('class' => 'filter-wrapper'),
|
| 506 |
);
|
| 507 |
$form['format_guidelines'] = array(
|
| 508 |
'#prefix' => '<div id="' . $element_id . '-guidelines" class="filter-guidelines">',
|
| 509 |
'#suffix' => '</div>',
|
| 510 |
'#weight' => 2,
|
| 511 |
|
| 512 |
foreach ($formats as $format) {
|
| 513 |
$options[$format->format] = $format->name;
|
| 514 |
$form['format_guidelines'][$format->format] = array(
|
| 515 |
'#markup' => theme('filter_guidelines', $format),
|
| 516 |
|
| 517 |
}
|
| 518 |
$form['format'] = array(
|
| 519 |
'#type' => 'select',
|
| 520 |
'#title' => t('Text format'),
|
| 521 |
'#options' => $options,
|
| 522 |
'#default_value' => $value,
|
| 523 |
'#parents' => $parents,
|
| 524 |
'#access' => count($formats) > 1,
|
| 525 |
'#id' => $element_id,
|
| 526 |
'#attributes' => array('class' => 'filter-list'),
|
| 527 |
|
| 528 |
$form['format_help'] = array(
|
| 529 |
'#prefix' => '<div id="' . $element_id . '-help" class="filter-help">',
|
| 530 |
'#markup' => theme('filter_tips_more_info'),
|
| 531 |
'#suffix' => '</div>',
|
| 532 |
'#weight' => 1,
|
| 533 |
|
| 534 |
|
| 535 |
return $form;
|
| 536 |
}
|
| 537 |
|
| 538 |
|
| 539 |
|
| 540 |
|
| 541 |
function filter_access($format) {
|
| 542 |
$format = filter_resolve_format($format);
|
| 543 |
if (user_access('administer filters') || ($format == variable_get('filter_default_format', 1))) {
|
| 544 |
return TRUE;
|
| 545 |
}
|
| 546 |
|
| 547 |
$formats = filter_formats();
|
| 548 |
return isset($formats[$format]);
|
| 549 |
|
| 550 |
}
|
| 551 |
|
| 552 |
|
| 553 |
|
| 554 |
|
| 555 |
|
| 556 |
|
| 557 |
|
| 558 |
|
| 559 |
|
| 560 |
function _filter_tips($format, $long = FALSE) {
|
| 561 |
if ($format == -1) {
|
| 562 |
$formats = filter_formats();
|
| 563 |
}
|
| 564 |
|
| 565 |
$formats = array(db_query("SELECT * FROM {filter_format} WHERE format = :format", array(':format' => $format))->fetchObject());
|
| 566 |
|
| 567 |
|
| 568 |
$tips = array();
|
| 569 |
|
| 570 |
foreach ($formats as $format) {
|
| 571 |
$filters = filter_list_format($format->format);
|
| 572 |
|
| 573 |
$tips[$format->name] = array();
|
| 574 |
foreach ($filters as $id => $filter) {
|
| 575 |
$filter_info = module_invoke($filter->module, 'filter_info');
|
| 576 |
if (isset($filter_info[$filter->delta]['tips callback']) && drupal_function_exists($filter_info[$filter->delta]['tips callback'])) {
|
| 577 |
$tip = call_user_func($filter_info[$filter->delta]['tips callback'],$format->format, $long);
|
| 578 |
$tips[$format->name][] = array('tip' => $tip, 'id' => $id);
|
| 579 |
}
|
| 580 |
}
|
| 581 |
}
|
| 582 |
|
| 583 |
return $tips;
|
| 584 |
}
|
| 585 |
|
| 586 |
|
| 587 |
|
| 588 |
|
| 589 |
|
| 590 |
|
| 591 |
|
| 592 |
|
| 593 |
|
| 594 |
|
| 595 |
|
| 596 |
|
| 597 |
|
| 598 |
|
| 599 |
|
| 600 |
function filter_dom_load($text) {
|
| 601 |
|
| 602 |
$dom_document = @DOMDocument::loadHTML('<html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /></head><body>' . $text . '</body></html>');
|
| 603 |
|
| 604 |
return $dom_document;
|
| 605 |
}
|
| 606 |
|
| 607 |
|
| 608 |
|
| 609 |
|
| 610 |
|
| 611 |
|
| 612 |
|
| 613 |
|
| 614 |
|
| 615 |
|
| 616 |
|
| 617 |
|
| 618 |
|
| 619 |
|
| 620 |
|
| 621 |
|
| 622 |
function filter_dom_serialize($dom_document) {
|
| 623 |
$body_node = $dom_document->getElementsByTagName('body')->item(0);
|
| 624 |
$body_content = '';
|
| 625 |
foreach ($body_node->childNodes as $child_node) {
|
| 626 |
$body_content .= $dom_document->saveXML($child_node);
|
| 627 |
}
|
| 628 |
return preg_replace('|<([^>]*)/>|i', '<$1 />', $body_content);
|
| 629 |
}
|
| 630 |
|
| 631 |
|
| 632 |
|
| 633 |
|
| 634 |
|
| 635 |
|
| 636 |
function theme_filter_tips_more_info() {
|
| 637 |
return '<p>' . l(t('More information about text formats'), 'filter/tips') . '</p>';
|
| 638 |
}
|
| 639 |
|
| 640 |
|
| 641 |
|
| 642 |
|
| 643 |
|
| 644 |
|
| 645 |
function theme_filter_guidelines($format) {
|
| 646 |
$name = isset($format->name) ? '<label>' . $format->name . ':</label>' : '';
|
| 647 |
return '<div id="filter-guidelines-' . $format->format . '" class="filter-guidelines-item">' . $name . theme('filter_tips', _filter_tips($format->format, FALSE)) . '</div>';
|
| 648 |
}
|
| 649 |
|
| 650 |
|
| 651 |
|
| 652 |
|
| 653 |
|
| 654 |
|
| 655 |
|
| 656 |
function filter_filter_info() {
|
| 657 |
$filters[0] = array(
|
| 658 |
'name' => t('Limit allowed HTML tags'),
|
| 659 |
'description' => t('Allows you to restrict the HTML tags the user can use. It will also remove harmful content such as JavaScript events, JavaScript URLs and CSS styles from those tags that are not removed.'),
|
| 660 |
'process callback' => '_filter_html',
|
| 661 |
'settings callback' => '_filter_html_settings',
|
| 662 |
|
| 663 |
);
|
| 664 |
$filters[1] = array(
|
| 665 |
'name' => t('Convert line breaks'),
|
| 666 |
'description' => t('Converts line breaks into HTML (i.e. <br> and <p>) tags.'),
|
| 667 |
'process callback' => '_filter_autop',
|
| 668 |
|
| 669 |
);
|
| 670 |
$filters[2] = array(
|
| 671 |
'name' => t('Convert URLs into links'),
|
| 672 |
'description' => t('Turns web and e-mail addresses into clickable links.'),
|
| 673 |
'process callback' => '_filter_url',
|
| 674 |
'settings callback' => '_filter_url_settings',
|
| 675 |
|
| 676 |
);
|
| 677 |
$filters[3] = array(
|
| 678 |
'name' => t('Correct broken HTML'),
|
| 679 |
'description' => t('Corrects faulty and chopped off HTML in postings.'),
|
| 680 |
'process callback' => '_filter_htmlcorrector',
|
| 681 |
|
| 682 |
$filters[4] = array(
|
| 683 |
'name' => t('Escape all HTML'),
|
| 684 |
'description' => t('Escapes all HTML tags, so they will be visible instead of being effective.'),
|
| 685 |
'process callback' => '_filter_html_escape',
|
| 686 |
|
| 687 |
);
|
| 688 |
return $filters;
|
| 689 |
}
|
| 690 |
|
| 691 |
|
| 692 |
|
| 693 |
|
| 694 |
function _filter_html_settings($format) {
|
| 695 |
$form['filter_html'] = array(
|
| 696 |
'#type' => 'fieldset',
|
| 697 |
'#title' => t('HTML filter'),
|
| 698 |
'#collapsible' => TRUE,
|
| 699 |
|
| 700 |
$form['filter_html']["allowed_html_$format"] = array(
|
| 701 |
'#type' => 'textfield',
|
| 702 |
'#title' => t('Allowed HTML tags'),
|
| 703 |
'#default_value' => variable_get("allowed_html_$format", '<a> <em> <strong> <cite> <blockquote> <code> <ul> <ol> <li> <dl> <dt> <dd>'),
|
| 704 |
'#size' => 64,
|
| 705 |
'#maxlength' => 1024,
|
| 706 |
'#description' => t('Specify a list of tags which should not be stripped. (Note that JavaScript event attributes are always stripped.)'),
|
| 707 |
|
| 708 |
$form['filter_html']["filter_html_help_$format"] = array(
|
| 709 |
'#type' => 'checkbox',
|
| 710 |
'#title' => t('Display HTML help'),
|
| 711 |
'#default_value' => variable_get("filter_html_help_$format", 1),
|
| 712 |
'#description' => t('If enabled, Drupal will display some basic HTML help in the long filter tips.'),
|
| 713 |
|
| 714 |
$form['filter_html']["filter_html_nofollow_$format"] = array(
|
| 715 |
'#type' => 'checkbox',
|
| 716 |
'#title' => t('Spam link deterrent'),
|
| 717 |
'#default_value' => variable_get("filter_html_nofollow_$format", FALSE),
|
| 718 |
'#description' => t('If enabled, Drupal will add rel="nofollow" to all links, as a measure to reduce the effectiveness of spam links. Note: this will also prevent valid links from being followed by search engines, therefore it is likely most effective when enabled for anonymous users.'),
|
| 719 |
|
| 720 |
return $form;
|
| 721 |
}
|
| 722 |
|
| 723 |
|
| 724 |
|
| 725 |
|
| 726 |
function _filter_html($text, $format) {
|
| 727 |
$allowed_tags = preg_split('/\s+|<|>/', variable_get("allowed_html_$format", '<a> <em> <strong> <cite> <blockquote> <code> <ul> <ol> <li> <dl> <dt> <dd>'), -1, PREG_SPLIT_NO_EMPTY);
|
| 728 |
$text = filter_xss($text, $allowed_tags);
|
| 729 |
|
| 730 |
if (variable_get("filter_html_nofollow_$format", FALSE)) {
|
| 731 |
$html_dom = filter_dom_load($text);
|
| 732 |
$links = $html_dom->getElementsByTagName('a');
|
| 733 |
foreach($links as $link) {
|
| 734 |
$link->setAttribute('rel', 'nofollow');
|
| 735 |
}
|
| 736 |
$text = filter_dom_serialize($html_dom);
|
| 737 |
}
|
| 738 |
|
| 739 |
return trim($text);
|
| 740 |
}
|
| 741 |
|
| 742 |
|
| 743 |
|
| 744 |
|
| 745 |
function _filter_url_settings($format) {
|
| 746 |
$form['filter_urlfilter'] = array(
|
| 747 |
'#type' => 'fieldset',
|
| 748 |
'#title' => t('URL filter'),
|
| 749 |
'#collapsible' => TRUE,
|
| 750 |
|
| 751 |
$form['filter_urlfilter']['filter_url_length_' . $format] = array(
|
| 752 |
'#type' => 'textfield',
|
| 753 |
'#title' => t('Maximum link text length'),
|
| 754 |
'#default_value' => variable_get('filter_url_length_' . $format, 72),
|
| 755 |
'#maxlength' => 4,
|
| 756 |
'#description' => t('URLs longer than this number of characters will be truncated to prevent long strings that break formatting. The link itself will be retained; just the text portion of the link will be truncated.'),
|
| 757 |
|
| 758 |
return $form;
|
| 759 |
}
|
| 760 |
|
| 761 |
|
| 762 |
|
| 763 |
|
| 764 |
|
| 765 |
function _filter_url($text, $format) {
|
| 766 |
|
| 767 |
_filter_url_trim(NULL, variable_get('filter_url_length_' . $format, 72));
|
| 768 |
|
| 769 |
$text = ' ' . $text . ' ';
|
| 770 |
|
| 771 |
|
| 772 |
$text = preg_replace_callback("`(<p>|<li>|<br\s*/?>|[ \n\r\t\(])((http://|https://|ftp://|mailto:|smb://|afp://|file://|gopher://|news://|ssl://|sslv2://|sslv3://|tls://|tcp://|udp://)([a-zA-Z0-9@:%_+*~#?&=.,/;-]*[a-zA-Z0-9@:%_+*~#&=/;-]))([.,?!]*?)(?=(</p>|</li>|<br\s*/?>|[ \n\r\t\)]))`i", '_filter_url_parse_full_links', $text);
|
| 773 |
|
| 774 |
|
| 775 |
$text = preg_replace("`(<p>|<li>|<br\s*/?>|[ \n\r\t\(])([A-Za-z0-9._-]+@[A-Za-z0-9._+-]+\.[A-Za-z]{2,4})([.,?!]*?)(?=(</p>|</li>|<br\s*/?>|[ \n\r\t\)]))`i", '\1<a href="mailto:\2">\2</a>\3', $text);
|
| 776 |
|
| 777 |
|
| 778 |
$text = preg_replace_callback("`(<p>|<li>|[ \n\r\t\(])(www\.[a-zA-Z0-9@:%_+*~#?&=.,/;-]*[a-zA-Z0-9@:%_+~#\&=/;-])([.,?!]*?)(?=(</p>|</li>|<br\s*/?>|[ \n\r\t\)]))`i", '_filter_url_parse_partial_links', $text);
|
| 779 |
$text = substr($text, 1, -1);
|
| 780 |
|
| 781 |
return $text;
|
| 782 |
}
|
| 783 |
|
| 784 |
|
| 785 |
|
| 786 |
|
| 787 |
function _filter_htmlcorrector($text) {
|
| 788 |
return filter_dom_serialize(filter_dom_load($text));
|
| 789 |
}
|
| 790 |
|
| 791 |
|
| 792 |
|
| 793 |
|
| 794 |
function _filter_url_parse_full_links($match) {
|
| 795 |
$match[2] = decode_entities($match[2]);
|
| 796 |
$caption = check_plain(_filter_url_trim($match[2]));
|
| 797 |
$match[2] = check_url($match[2]);
|
| 798 |
return $match[1] . '<a href="' . $match[2] . '" title="' . $match[2] . '">' . $caption . '</a>' . $match[5];
|
| 799 |
}
|
| 800 |
|
| 801 |
|
| 802 |
|
| 803 |
|
| 804 |
function _filter_url_parse_partial_links($match) {
|
| 805 |
$match[2] = decode_entities($match[2]);
|
| 806 |
$caption = check_plain(_filter_url_trim($match[2]));
|
| 807 |
$match[2] = check_plain($match[2]);
|
| 808 |
return $match[1] . '<a href="http://' . $match[2] . '" title="' . $match[2] . '">' . $caption . '</a>' . $match[3];
|
| 809 |
}
|
| 810 |
|
| 811 |
|
| 812 |
|
| 813 |
|
| 814 |
function _filter_url_trim($text, $length = NULL) {
|
| 815 |
static $_length;
|
| 816 |
if ($length !== NULL) {
|
| 817 |
$_length = $length;
|
| 818 |
}
|
| 819 |
|
| 820 |
|
| 821 |
if (strlen($text) > $_length + 3) {
|
| 822 |
$text = substr($text, 0, $_length) . '...';
|
| 823 |
}
|
| 824 |
|
| 825 |
return $text;
|
| 826 |
}
|
| 827 |
|
| 828 |
|
| 829 |
|
| 830 |
|
| 831 |
|
| 832 |
function _filter_autop($text) {
|
| 833 |
|
| 834 |
$block = '(?:table|thead|tfoot|caption|colgroup|tbody|tr|td|th|div|dl|dd|dt|ul|ol|li|pre|select|form|blockquote|address|p|h[1-6]|hr)';
|
| 835 |
|
| 836 |
|
| 837 |
|
| 838 |
|
| 839 |
|
| 840 |
$chunks = preg_split('@(</?(?:pre|script|style|object)[^>]*>)@i', $text, -1, PREG_SPLIT_DELIM_CAPTURE);
|
| 841 |
|
| 842 |
|
| 843 |
$ignore = FALSE;
|
| 844 |
$ignoretag = '';
|
| 845 |
$output = '';
|
| 846 |
foreach ($chunks as $i => $chunk) {
|
| 847 |
if ($i % 2) {
|
| 848 |
|
| 849 |
$open = ($chunk[1] != '/');
|
| 850 |
list($tag) = preg_split('/[ >]/', substr($chunk, 2 - $open), 2);
|
| 851 |
if (!$ignore) {
|
| 852 |
if ($open) {
|
| 853 |
$ignore = TRUE;
|
| 854 |
$ignoretag = $tag;
|
| 855 |
}
|
| 856 |
}
|
| 857 |
|
| 858 |
elseif (!$open && $ignoretag == $tag) {
|
| 859 |
$ignore = FALSE;
|
| 860 |
$ignoretag = '';
|
| 861 |
}
|
| 862 |
}
|
| 863 |
elseif (!$ignore) {
|
| 864 |
$chunk = preg_replace('|\n*$|', '', $chunk) . "\n\n"; // just to make things a little easier, pad the end
|
| 865 |
$chunk = preg_replace('|<br />\s*<br />|', "\n\n", $chunk);
|
| 866 |
$chunk = preg_replace('!(<' . $block . '[^>]*>)!', "\n$1", $chunk); // Space things out a little
|
| 867 |
$chunk = preg_replace('!(</' . $block . '>)!', "$1\n\n", $chunk); // Space things out a little
|
| 868 |
$chunk = preg_replace("/\n\n+/", "\n\n", $chunk); // take care of duplicates
|
| 869 |
$chunk = preg_replace('/^\n|\n\s*\n$/', '', $chunk);
|
| 870 |
$chunk = '<p>' . preg_replace('/\n\s*\n\n?(.)/', "</p>\n<p>$1", $chunk) . "</p>\n"; // make paragraphs, including one at the end
|
| 871 |
$chunk = preg_replace("|<p>(<li.+?)</p>|", "$1", $chunk); // problem with nested lists
|
| 872 |
$chunk = preg_replace('|<p><blockquote([^>]*)>|i', "<blockquote$1><p>", $chunk);
|
| 873 |
$chunk = str_replace('</blockquote></p>', '</p></blockquote>', $chunk);
|
| 874 |
$chunk = preg_replace('|<p>\s*</p>\n?|', '', $chunk); // under certain strange conditions it could create a P of entirely whitespace
|
| 875 |
$chunk = preg_replace('!<p>\s*(</?' . $block . '[^>]*>)!', "$1", $chunk);
|
| 876 |
$chunk = preg_replace('!(</?' . $block . '[^>]*>)\s*</p>!', "$1", $chunk);
|
| 877 |
$chunk = preg_replace('|(?<!<br />)\s*\n|', "<br />\n", $chunk); // make line breaks
|
| 878 |
$chunk = preg_replace('!(</?' . $block . '[^>]*>)\s*<br />!', "$1", $chunk);
|
| 879 |
$chunk = preg_replace('!<br />(\s*</?(?:p|li|div|th|pre|td|ul|ol)>)!', '$1', $chunk);
|
| 880 |
$chunk = preg_replace('/&([^#])(?![A-Za-z0-9]{1,8};)/', '&$1', $chunk);
|
| 881 |
}
|
| 882 |
$output .= $chunk;
|
| 883 |
}
|
| 884 |
return $output;
|
| 885 |
}
|
| 886 |
|
| 887 |
|
| 888 |
|
| 889 |
|
| 890 |
|