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<?php
define('LINK_EXTERNAL', 'external');
define('LINK_INTERNAL', 'internal');
define('LINK_FRONT', 'front');
define('LINK_FRAGMENT', 'fragment');
define('LINK_QUERY', 'query');
define('LINK_EMAIL', 'email');
define('LINK_TEL', 'tel');
define('LINK_NEWS', 'news');
define('LINK_FILE', 'file');
define('LINK_TARGET_DEFAULT', 'default');
define('LINK_TARGET_NEW_WINDOW', '_blank');
define('LINK_TARGET_TOP', '_top');
define('LINK_TARGET_USER', 'user');
define('LINK_HTTP_PROTOCOL', 'http');
define('LINK_HTTPS_PROTOCOL', 'https');
define('LINK_URL_MAX_LENGTH', 2048);
function link_help($path, $arg) {
switch ($path) {
case 'admin/help#link':
$output = '<p><strong>' . t('About') . '</strong></p>';
$output .= '<p>' . t('The link provides a standard custom content field for links. Links can be easily added to any content types and profiles and include advanced validating and different ways of storing internal or external links and URLs. It also supports additional link text title, site wide tokens for titles and title attributes, target attributes, css class attribution, static repeating values, input conversion, and many more.') . '</p>';
$output .= '<p><strong>' . t('Requirements / Dependencies') . '</strong></p>';
$output .= '<p>' . 'Fields API is provided already by core [no dependencies].' . '</p>';
$output .= '<p><strong>Configuration</strong></p>';
$output .= '<p>' . 'Configuration is only slightly more complicated than a text field. Link text titles for URLs can be made required, set as instead of URL, optional (default), or left out entirely. If no link text title is provided, the trimmed version of the complete URL will be displayed. The target attribute should be set to "_blank", "top", or left out completely (checkboxes provide info). The rel=nofollow attribute prevents the link from being followed by certain search engines.' . '</p>';
return $output;
}
}
function link_field_info() {
return array(
'link_field' => array(
'label' => t('Link'),
'description' => t('Store a title, href, and attributes in the database to assemble a link.'),
'settings' => array(
'attributes' => _link_default_attributes(),
'url' => 0,
'title' => 'optional',
'title_value' => '',
'title_maxlength' => 128,
'enable_tokens' => 1,
'display' => array(
'url_cutoff' => 80,
),
),
'instance_settings' => array(
'attributes' => _link_default_attributes(),
'url' => 0,
'title' => 'optional',
'title_value' => '',
'title_label_use_field_label' => FALSE,
'title_maxlength' => 128,
'enable_tokens' => 1,
'convert_aliases' => 0,
'display' => array(
'url_cutoff' => 80,
),
'validate_url' => 1,
'absolute_url' => 1,
),
'default_widget' => 'link_field',
'default_formatter' => 'link_default',
'property_type' => 'field_item_link',
'property_callbacks' => array(
'link_field_property_info_callback',
),
),
);
}
function link_field_instance_settings_form($field, $instance) {
$form = array(
'#element_validate' => array(
'link_field_settings_form_validate',
),
);
$form['absolute_url'] = array(
'#type' => 'checkbox',
'#title' => t('Absolute URL'),
'#default_value' => isset($instance['settings']['absolute_url']) && $instance['settings']['absolute_url'] !== '' ? $instance['settings']['absolute_url'] : TRUE,
'#description' => t('If checked, the URL will always render as an absolute URL.'),
);
$form['validate_url'] = array(
'#type' => 'checkbox',
'#title' => t('Validate URL'),
'#default_value' => isset($instance['settings']['validate_url']) && $instance['settings']['validate_url'] !== '' ? $instance['settings']['validate_url'] : TRUE,
'#description' => t('If checked, the URL field will be verified as a valid URL during validation.'),
);
$form['url'] = array(
'#type' => 'checkbox',
'#title' => t('Optional URL'),
'#default_value' => isset($instance['settings']['url']) ? $instance['settings']['url'] : '',
'#return_value' => 'optional',
'#description' => t('If checked, the URL field is optional and submitting a title alone will be acceptable. If the URL is omitted, the title will be displayed as plain text.'),
);
$title_options = array(
'optional' => t('Optional Title'),
'required' => t('Required Title'),
'value' => t('Static Title'),
'select' => t('Selected Title'),
'none' => t('No Title'),
);
$form['title'] = array(
'#type' => 'radios',
'#title' => t('Link Title'),
'#default_value' => isset($instance['settings']['title']) ? $instance['settings']['title'] : 'optional',
'#options' => $title_options,
'#description' => t('If the link title is optional or required, a field will be displayed to the end user. If the link title is static, the link will always use the same title. If <a href="http://drupal.org/project/token">token module</a> is installed, the static title value may use any other entity field as its value. Static and token-based titles may include most inline XHTML tags such as <em>strong</em>, <em>em</em>, <em>img</em>, <em>span</em>, etc.'),
);
$form['title_value'] = array(
'#type' => 'textfield',
'#title' => t('Static or default title'),
'#default_value' => isset($instance['settings']['title_value']) ? $instance['settings']['title_value'] : '',
'#description' => t('This title will 1) always be used if "Static Title" is selected above, or 2) used if "Optional title" is selected above and no title is entered when creating content.'),
'#states' => array(
'visible' => array(
':input[name="instance[settings][title]"]' => array(
'value' => 'value',
),
),
),
);
$form['title_allowed_values'] = array(
'#type' => 'textarea',
'#title' => t('Title allowed values'),
'#default_value' => isset($instance['settings']['title_allowed_values']) ? $instance['settings']['title_allowed_values'] : '',
'#description' => t('When using "Selected Title", you can allow users to select the title from a limited set of values (eg. Home, Office, Other). Enter here all possible values that title can take, one value per line.'),
'#states' => array(
'visible' => array(
':input[name="instance[settings][title]"]' => array(
'value' => 'select',
),
),
),
);
$form['title_label_use_field_label'] = array(
'#type' => 'checkbox',
'#title' => t('Use field label as the label for the title field'),
'#default_value' => isset($instance['settings']['title_label_use_field_label']) ? $instance['settings']['title_label_use_field_label'] : FALSE,
'#description' => t('If this is checked the field label will be hidden.'),
);
$form['title_maxlength'] = array(
'#type' => 'textfield',
'#title' => t('Max length of title field'),
'#default_value' => isset($instance['settings']['title_maxlength']) ? $instance['settings']['title_maxlength'] : '128',
'#description' => t('Set a maximum length on the title field (applies only if Link Title is optional or required). The maximum limit is 255 characters.'),
'#maxlength' => 3,
'#size' => 3,
);
if (module_exists('token')) {
$form['enable_tokens'] = array(
'#type' => 'checkbox',
'#title' => t('Allow user-entered tokens'),
'#default_value' => isset($instance['settings']['enable_tokens']) ? $instance['settings']['enable_tokens'] : 1,
'#description' => t('Checking will allow users to enter tokens in URLs and Titles on the entity edit form. This does not affect the field settings on this page.'),
);
$entity_info = entity_get_info($instance['entity_type']);
$form['tokens_help'] = array(
'#theme' => 'token_tree',
'#token_types' => array(
$entity_info['token type'],
),
'#global_types' => TRUE,
'#click_insert' => TRUE,
'#dialog' => TRUE,
);
}
$form['convert_aliases'] = array(
'#type' => 'checkbox',
'#title' => t('Convert local aliases'),
'#default_value' => isset($instance['settings']['convert_aliases']) ? $instance['settings']['convert_aliases'] : '',
'#description' => t('If checked, a path alias is converted to the internal system path, the same way as when saving menu links.'),
);
$form['display'] = array(
'#tree' => TRUE,
);
$form['display']['url_cutoff'] = array(
'#type' => 'textfield',
'#title' => t('URL Display Cutoff'),
'#default_value' => isset($instance['settings']['display']['url_cutoff']) ? $instance['settings']['display']['url_cutoff'] : '80',
'#description' => t('If the user does not include a title for this link, the URL will be used as the title. When should the link title be trimmed and finished with an elipsis (…)? Leave blank for no limit.'),
'#maxlength' => 3,
'#size' => 3,
);
$target_options = array(
LINK_TARGET_DEFAULT => t('Default (no target attribute)'),
LINK_TARGET_TOP => t('Open link in window root'),
LINK_TARGET_NEW_WINDOW => t('Open link in new window'),
LINK_TARGET_USER => t('Allow the user to choose'),
);
$form['attributes'] = array(
'#tree' => TRUE,
);
$form['attributes']['target'] = array(
'#type' => 'radios',
'#title' => t('Link Target'),
'#default_value' => empty($instance['settings']['attributes']['target']) ? LINK_TARGET_DEFAULT : $instance['settings']['attributes']['target'],
'#options' => $target_options,
);
$form['attributes']['rel'] = array(
'#type' => 'textfield',
'#title' => t('Rel Attribute'),
'#description' => t('When output, this link will have this rel attribute. The most common usage is <a href="http://en.wikipedia.org/wiki/Nofollow" target="blank">rel="nofollow"</a> which prevents some search engines from spidering entered links.'),
'#default_value' => empty($instance['settings']['attributes']['rel']) ? '' : $instance['settings']['attributes']['rel'],
'#field_prefix' => 'rel = "',
'#field_suffix' => '"',
'#size' => 20,
);
$rel_remove_options = array(
'default' => t('Keep rel as set up above (untouched/default)'),
'rel_remove_external' => t('Remove rel if given link is external'),
'rel_remove_internal' => t('Remove rel if given link is internal'),
);
$form['rel_remove'] = array(
'#type' => 'radios',
'#title' => t('Remove rel attribute automatically'),
'#default_value' => !isset($instance['settings']['rel_remove']) ? 'default' : $instance['settings']['rel_remove'],
'#description' => t('Turn on/off if rel attribute should be removed automatically, if user given link is internal/external'),
'#options' => $rel_remove_options,
);
$form['attributes']['configurable_class'] = array(
'#title' => t("Allow the user to enter a custom link class per link"),
'#type' => 'checkbox',
'#default_value' => empty($instance['settings']['attributes']['configurable_class']) ? '' : $instance['settings']['attributes']['configurable_class'],
);
$form['attributes']['class'] = array(
'#type' => 'textfield',
'#title' => t('Additional CSS Class'),
'#description' => t('When output, this link will have this class attribute. Multiple classes should be separated by spaces. Only alphanumeric characters and hyphens are allowed'),
'#default_value' => empty($instance['settings']['attributes']['class']) ? '' : $instance['settings']['attributes']['class'],
);
$form['attributes']['configurable_title'] = array(
'#title' => t("Allow the user to enter a link 'title' attribute"),
'#type' => 'checkbox',
'#default_value' => empty($instance['settings']['attributes']['configurable_title']) ? '' : $instance['settings']['attributes']['configurable_title'],
);
$form['attributes']['title'] = array(
'#title' => t("Default link 'title' Attribute"),
'#type' => 'textfield',
'#description' => t('When output, links will use this "title" attribute if the user does not provide one and when different from the link text. Read <a href="http://www.w3.org/TR/WCAG10-HTML-TECHS/#links" target="blank">WCAG 1.0 Guidelines</a> for links comformances. Tokens values will be evaluated.'),
'#default_value' => empty($instance['settings']['attributes']['title']) ? '' : $instance['settings']['attributes']['title'],
'#field_prefix' => 'title = "',
'#field_suffix' => '"',
'#size' => 20,
);
return $form;
}
function link_field_settings_form_validate($element, &$form_state, $complete_form) {
if ($form_state['values']['instance']['settings']['title'] === 'value' && empty($form_state['values']['instance']['settings']['title_value'])) {
form_set_error('instance][settings][title_value', t('A default title must be provided if the title is a static value.'));
}
if ($form_state['values']['instance']['settings']['title'] === 'select' && empty($form_state['values']['instance']['settings']['title_allowed_values'])) {
form_set_error('instance][settings][title_allowed_values', t('You must enter one or more allowed values for link Title, the title is a selected value.'));
}
if (!empty($form_state['values']['instance']['settings']['display']['url_cutoff']) && !is_numeric($form_state['values']['instance']['settings']['display']['url_cutoff'])) {
form_set_error('display', t('URL Display Cutoff value must be numeric.'));
}
if (empty($form_state['values']['instance']['settings']['title_maxlength'])) {
form_set_value($element['title_maxlength'], '128', $form_state);
}
elseif (!is_numeric($form_state['values']['instance']['settings']['title_maxlength'])) {
form_set_error('title_maxlength', t('The max length of the link title must be numeric.'));
}
elseif ($form_state['values']['instance']['settings']['title_maxlength'] > 255) {
form_set_error('title_maxlength', t('The max length of the link title cannot be greater than 255 characters.'));
}
}
function link_field_is_empty($item, $field) {
return empty($item['title']) && empty($item['url']);
}
function link_field_load($entity_type, $entities, $field, $instances, $langcode, &$items, $age) {
foreach ($entities as $id => $entity) {
foreach ($items[$id] as $delta => $item) {
$items[$id][$delta]['attributes'] = _link_load($field, $item, $instances[$id]);
$items[$id][$delta]['original_title'] = isset($item['title']) ? $item['title'] : NULL;
$items[$id][$delta]['original_url'] = $item['url'];
}
}
}
function link_field_validate($entity_type, $entity, $field, $instance, $langcode, $items, &$errors) {
$optional_field_found = FALSE;
if ($instance['settings']['validate_url'] !== 0 || is_null($instance['settings']['validate_url']) || !isset($instance['settings']['validate_url'])) {
foreach ($items as $delta => $value) {
_link_validate($items[$delta], $delta, $field, $entity, $instance, $langcode, $optional_field_found, $errors);
}
}
foreach ($items as $delta => $value) {
if (isset($value['attributes']) && is_string($value['attributes'])) {
$errors[$field['field_name']][$langcode][$delta][] = array(
'error' => 'link_required',
'message' => t('String values are not acceptable for attributes.'),
'error_element' => array(
'url' => TRUE,
'title' => FALSE,
),
);
}
}
if ($instance['settings']['url'] === 'optional' && $instance['settings']['title'] === 'optional' && $instance['required'] && !$optional_field_found) {
$errors[$field['field_name']][$langcode][0][] = array(
'error' => 'link_required',
'message' => t('At least one title or URL must be entered.'),
'error_element' => array(
'url' => FALSE,
'title' => TRUE,
),
);
}
if ($instance['settings']['title'] == 'select') {
if (!empty($item['title']) && !empty($item['url'])) {
$errors[$field['field_name']][$langcode][$delta][] = array(
'error' => 'link_required',
'message' => t('The title field is required when a URL is provided.'),
'error_element' => array(
'url' => FALSE,
'title' => TRUE,
),
);
}
}
}
function link_field_insert($entity_type, $entity, $field, $instance, $langcode, &$items) {
foreach ($items as $delta => $value) {
_link_process($items[$delta], $delta, $field, $entity, $instance);
}
}
function link_field_update($entity_type, $entity, $field, $instance, $langcode, &$items) {
foreach ($items as $delta => $value) {
_link_process($items[$delta], $delta, $field, $entity, $instance);
}
}
function link_field_prepare_view($entity_type, $entities, $field, $instances, $langcode, &$items) {
foreach ($items as $entity_id => $entity_items) {
foreach ($entity_items as $delta => $value) {
_link_sanitize($items[$entity_id][$delta], $delta, $field, $instances[$entity_id], $entities[$entity_id]);
}
}
}
function link_field_widget_info() {
return array(
'link_field' => array(
'label' => 'Link',
'field types' => array(
'link_field',
),
'multiple values' => FIELD_BEHAVIOR_DEFAULT,
),
);
}
function link_field_widget_form(&$form, &$form_state, $field, $instance, $langcode, $items, $delta, $element) {
$element += array(
'#type' => $instance['widget']['type'],
'#default_value' => isset($items[$delta]) ? $items[$delta] : '',
);
return $element;
}
function link_field_widget_error($element, $error, $form, &$form_state) {
if (!empty($error['error_element']['title'])) {
form_error($element['title'], $error['message']);
}
elseif (!empty($error['error_element']['url'])) {
form_error($element['url'], $error['message']);
}
}
function _link_load($field, $item, $instance) {
if (isset($item['attributes'])) {
if (!is_array($item['attributes'])) {
$item['attributes'] = unserialize($item['attributes']);
}
return $item['attributes'];
}
elseif (isset($instance['settings']['attributes'])) {
return $instance['settings']['attributes'];
}
else {
return $field['settings']['attributes'];
}
}
function _link_process(&$item, $delta, $field, $entity, $instance) {
if (!empty($item['url'])) {
$item['url'] = trim($item['url']);
}
if (!empty($instance['settings']['convert_aliases'])) {
global $base_url;
$base_paths = array(
$base_url . base_path(),
base_path(),
);
if (isset($GLOBALS['base_secure_url'])) {
$base_paths[] = $GLOBALS['base_secure_url'] . base_path();
}
if (isset($GLOBALS['base_insecure_url'])) {
$base_paths[] = $GLOBALS['base_insecure_url'] . base_path();
}
if ($extra_paths = variable_get('link_base_urls', array())) {
foreach ($extra_paths as $extra_path) {
$base_paths[] = $extra_path;
$base_paths[] = $extra_path . base_path();
}
}
$paths_to_test = array(
$item['url'],
);
foreach ($base_paths as $path) {
if (strpos($item['url'], $path) === 0) {
$strlen = drupal_strlen($path);
$paths_to_test[] = drupal_substr($item['url'], $strlen);
}
}
foreach (array_unique($paths_to_test) as $path) {
$language = NULL;
if (module_exists('locale')) {
require_once DRUPAL_ROOT . '/includes/language.inc';
list($language, $path) = language_url_split_prefix($path, language_list());
}
$normal_path = drupal_get_normal_path($path, $language);
if ($normal_path != $path) {
$item['url'] = $normal_path;
break;
}
}
}
if (empty($item['attributes'])) {
$item['attributes'] = array();
}
if (!is_string($item['attributes'])) {
$item['attributes'] = serialize($item['attributes']);
}
if (isset($field['widget']['default_value'][$delta]['url']) && $item['url'] == $field['widget']['default_value'][$delta]['url'] && is_object($entity)) {
$langcode = !empty($entity) ? field_language($instance['entity_type'], $entity, $instance['field_name']) : LANGUAGE_NONE;
if (!link_validate_url($item['url'], $langcode)) {
unset($item['url']);
}
}
}
function _link_validate(&$item, $delta, $field, $entity, $instance, $langcode, &$optional_field_found, &$errors) {
if ($item['url'] && !(isset($instance['default_value'][$delta]['url']) && $item['url'] === $instance['default_value'][$delta]['url'] && !$instance['required'])) {
if (!link_validate_url(trim($item['url']), $langcode)) {
$errors[$field['field_name']][$langcode][$delta][] = array(
'error' => 'link_required',
'message' => t('The value %value provided for %field is not a valid URL.', array(
'%value' => trim($item['url']),
'%field' => $instance['label'],
)),
'error_element' => array(
'url' => TRUE,
'title' => FALSE,
),
);
}
if ($instance['settings']['title'] == 'required' && strlen(trim($item['title'])) == 0) {
$errors[$field['field_name']][$langcode][$delta][] = array(
'error' => 'link_required',
'message' => t('Titles are required for all links.'),
'error_element' => array(
'url' => FALSE,
'title' => TRUE,
),
);
}
}
if ($instance['settings']['url'] !== 'optional' && strlen(isset($item['title']) ? $item['title'] : NULL) > 0 && strlen(trim($item['url'])) == 0) {
$errors[$field['field_name']][$langcode][$delta][] = array(
'error' => 'link_required',
'message' => t('You cannot enter a title without a link url.'),
'error_element' => array(
'url' => TRUE,
'title' => FALSE,
),
);
}
if ($instance['settings']['url'] === 'optional' && $instance['settings']['title'] === 'optional' && (strlen(trim($item['url'])) !== 0 || strlen(trim($item['title'])) !== 0)) {
$optional_field_found = TRUE;
}
if ($instance['settings']['url'] === 'optional' && $instance['settings']['title'] === 'optional' && $instance['required'] == 1 && !$optional_field_found && isset($instance['id'])) {
$errors[$field['field_name']][$langcode][$delta][] = array(
'error' => 'link_required',
'message' => t('At least one title or URL must be entered.'),
'error_element' => array(
'url' => FALSE,
'title' => TRUE,
),
);
}
if ($instance['settings']['title'] == 'select') {
if (!empty($item['title']) && !empty($item['url'])) {
$errors[$field['field_name']][$langcode][$delta][] = array(
'error' => 'link_required',
'message' => t('The title field is required when a URL is provided.'),
'error_element' => array(
'url' => FALSE,
'title' => TRUE,
),
);
}
}
}
function _link_sanitize(&$item, $delta, &$field, $instance, &$entity) {
if (isset($item['_link_sanitized'])) {
return;
}
$item['_link_sanitized'] = TRUE;
if (empty($item['url']) && empty($item['title'])) {
return;
}
if (empty($item['html'])) {
$item['html'] = FALSE;
}
$entity_type = $instance['entity_type'];
$entity_info = entity_get_info($entity_type);
$property_id = $entity_info['entity keys']['id'];
if (isset($entity_info['token type'])) {
$entity_token_type = $entity_info['token type'];
}
elseif ($entity_type == 'taxonomy_term' || $entity_type == 'taxonomy_vocabulary') {
$entity_token_type = str_replace('taxonomy_', '', $entity_type);
}
else {
$entity_token_type = $entity_type;
}
if (isset($instance['settings']['enable_tokens']) && $instance['settings']['enable_tokens']) {
$text_tokens = token_scan($item['url']);
if (!empty($text_tokens)) {
if (isset($entity->{$property_id})) {
$entity_loaded = entity_load($entity_type, array(
$entity->{$property_id},
));
$entity_loaded = array_pop($entity_loaded);
}
else {
$entity_loaded = $entity;
}
$item['url'] = token_replace($item['url'], array(
$entity_token_type => $entity_loaded,
));
}
}
$type = link_url_type($item['url']);
if ($type == FALSE && $instance['settings']['validate_url'] === 0) {
$type = LINK_EXTERNAL;
}
elseif ($type == LINK_FRAGMENT || $type == LINK_QUERY) {
if (!empty($instance['settings']['absolute_url'])) {
$item['url'] = $_GET['q'] . $item['url'];
}
else {
$item['external'] = TRUE;
}
}
$url = link_cleanup_url($item['url'], variable_get('link_default_protocol', LINK_HTTP_PROTOCOL));
$url_parts = _link_parse_url($url);
if (!empty($url_parts['url'])) {
$item = array(
'url' => $url_parts['url'],
'query' => isset($url_parts['query']) ? $url_parts['query'] : NULL,
'fragment' => isset($url_parts['fragment']) ? $url_parts['fragment'] : NULL,
'absolute' => !empty($instance['settings']['absolute_url']),
'html' => TRUE,
) + $item;
}
if ($type == LINK_EMAIL) {
$display_url = str_replace('mailto:', '', $url);
}
elseif ($type === LINK_EXTERNAL) {
$display_url = url($url_parts['url'], array(
'query' => isset($url_parts['query']) ? $url_parts['query'] : NULL,
'fragment' => isset($url_parts['fragment']) ? $url_parts['fragment'] : NULL,
'absolute' => TRUE,
));
}
elseif ($type == LINK_TEL) {
$display_url = str_replace('tel:', '', $url);
}
else {
$display_url = url($url_parts['url'], array(
'query' => isset($url_parts['query']) ? $url_parts['query'] : NULL,
'fragment' => isset($url_parts['fragment']) ? $url_parts['fragment'] : NULL,
'absolute' => !empty($instance['settings']['absolute_url']),
));
}
if ($instance['settings']['display']['url_cutoff'] && strlen($display_url) > $instance['settings']['display']['url_cutoff']) {
$display_url = substr($display_url, 0, $instance['settings']['display']['url_cutoff']) . "…";
}
$item['display_url'] = $display_url;
if ($instance['settings']['title'] == 'value' && strlen(trim($instance['settings']['title_value']))) {
$title = $instance['settings']['title_value'];
if (function_exists('i18n_string_translate')) {
$i18n_string_name = "field:{$instance['field_name']}:{$instance['bundle']}:title_value";
$title = i18n_string_translate($i18n_string_name, $title);
}
}
elseif (isset($item['title']) && drupal_strlen(trim($item['title']))) {
$title = $item['title'];
}
elseif ($instance['settings']['title'] == 'optional' && drupal_strlen(trim($instance['settings']['title_value']))) {
$title = $instance['settings']['title_value'];
}
else {
$title = '';
}
if ($title && $instance['settings']['enable_tokens']) {
$text_tokens = token_scan($title);
if (!empty($text_tokens)) {
if (isset($entity->{$property_id})) {
$entity_loaded = entity_load($entity_type, array(
$entity->{$property_id},
));
$entity_loaded = array_pop($entity_loaded);
}
else {
$entity_loaded = $entity;
}
$title = token_replace($title, array(
$entity_token_type => $entity_loaded,
));
}
}
if ($title && ($instance['settings']['title'] == 'value' || $instance['settings']['enable_tokens'])) {
$title = filter_xss($title, array(
'b',
'br',
'code',
'em',
'i',
'img',
'span',
'strong',
'sub',
'sup',
'tt',
'u',
));
$item['html'] = TRUE;
}
$item['title'] = empty($title) && $title !== '0' ? $item['display_url'] : $title;
if (!isset($item['attributes'])) {
$item['attributes'] = array();
}
if (!is_array($item['attributes'])) {
$item['attributes'] = (array) unserialize($item['attributes']);
}
if (!is_array($instance['settings']['attributes'])) {
$instance['settings']['attributes'] = _link_default_attributes();
}
else {
$instance['settings']['attributes'] += _link_default_attributes();
}
$item['attributes'] += $instance['settings']['attributes'];
if ($instance['settings']['attributes']['target'] != LINK_TARGET_USER) {
$item['attributes']['target'] = $instance['settings']['attributes']['target'];
}
elseif ($item['attributes']['target'] == LINK_TARGET_USER) {
$item['attributes']['target'] = LINK_TARGET_DEFAULT;
}
if (empty($item['attributes']) || isset($item['attributes']['target']) && $item['attributes']['target'] == LINK_TARGET_DEFAULT) {
unset($item['attributes']['target']);
}
if (isset($item['attributes']['rel']) && isset($instance['settings']['rel_remove']) && $instance['settings']['rel_remove'] != 'default') {
if ($instance['settings']['rel_remove'] != 'rel_remove_internal' && $type != LINK_INTERNAL || $instance['settings']['rel_remove'] != 'rel_remove_external' && $type != LINK_EXTERNAL) {
unset($item['attributes']['rel']);
}
}
if (!empty($item['attributes']['title']) && module_exists('token')) {
$text_tokens = token_scan($item['attributes']['title']);
if (!empty($text_tokens)) {
if (isset($entity->{$property_id})) {
$entity_loaded = entity_load($entity_type, array(
$entity->{$property_id},
));
$entity_loaded = array_pop($entity_loaded);
}
else {
$entity_loaded = $entity;
}
$item['attributes']['title'] = token_replace($item['attributes']['title'], array(
$entity_token_type => $entity_loaded,
), array(
'clear' => TRUE,
));
}
$item['attributes']['title'] = filter_xss($item['attributes']['title'], array(
'b',
'br',
'code',
'em',
'i',
'img',
'span',
'strong',
'sub',
'sup',
'tt',
'u',
));
}
if (!empty($item['attributes']['class'])) {
$classes = explode(' ', $item['attributes']['class']);
foreach ($classes as &$class) {
$class = drupal_clean_css_identifier($class);
}
$item['attributes']['class'] = implode(' ', $classes);
}
unset($item['attributes']['configurable_class']);
if (isset($item['attributes']['title']) && $item['attributes']['title'] == $item['title']) {
unset($item['attributes']['title']);
}
unset($item['attributes']['configurable_title']);
$item['attributes'] = array_filter($item['attributes']);
}
function _link_parse_url($url) {
$url_parts = array();
if (strpos($url, '#') !== FALSE) {
$url_parts['fragment'] = substr($url, strpos($url, '#') + 1);
$url = substr($url, 0, strpos($url, '#'));
}
if (strpos($url, '?') !== FALSE) {
$query = substr($url, strpos($url, '?') + 1);
$url_parts['query'] = _link_parse_str($query);
$url = substr($url, 0, strpos($url, '?'));
}
$url_parts['url'] = $url;
return $url_parts;
}
function _link_parse_str($query) {
$query_array = array();
$pairs = explode('&', $query);
foreach ($pairs as $pair) {
$name_value = explode('=', $pair, 2);
$name = urldecode($name_value[0]);
$value = isset($name_value[1]) ? urldecode($name_value[1]) : NULL;
$query_array[$name] = $value;
}
return $query_array;
}
function link_menu() {
$items['admin/config/content/link'] = array(
'title' => 'Link settings',
'description' => 'Settings for the link module.',
'page callback' => 'drupal_get_form',
'page arguments' => array(
'link_admin_settings',
),
'access arguments' => array(
'access administration pages',
),
'file' => 'link.admin.inc',
);
return $items;
}
function link_theme() {
return array(
'link_formatter_link_default' => array(
'variables' => array(
'element' => NULL,
'field' => NULL,
),
),
'link_formatter_link_plain' => array(
'variables' => array(
'element' => NULL,
'field' => NULL,
),
),
'link_formatter_link_host' => array(
'variables' => array(
'element' => NULL,
),
),
'link_formatter_link_absolute' => array(
'variables' => array(
'element' => NULL,
'field' => NULL,
),
),
'link_formatter_link_domain' => array(
'variables' => array(
'element' => NULL,
'display' => NULL,
'field' => NULL,
),
),
'link_formatter_link_no_protocol' => array(
'variables' => array(
'element' => NULL,
'field' => NULL,
),
),
'link_formatter_link_title_plain' => array(
'variables' => array(
'element' => NULL,
'field' => NULL,
),
),
'link_formatter_link_url' => array(
'variables' => array(
'element' => NULL,
'field' => NULL,
),
),
'link_formatter_link_short' => array(
'variables' => array(
'element' => NULL,
'field' => NULL,
),
),
'link_formatter_link_label' => array(
'variables' => array(
'element' => NULL,
'field' => NULL,
),
),
'link_formatter_link_separate' => array(
'variables' => array(
'element' => NULL,
'field' => NULL,
),
),
'link_field' => array(
'render element' => 'element',
),
);
}
function theme_link_field($vars) {
drupal_add_css(drupal_get_path('module', 'link') . '/css/link.css');
$element = $vars['element'];
if (empty($element['#field']['multiple'])) {
if (isset($element['url']) && !isset($element['title'])) {
$element['url']['#title_display'] = 'invisible';
}
}
$output = '';
$output .= '<div class="link-field-subrow clearfix">';
if (isset($element['title'])) {
$output .= '<div class="link-field-title link-field-column">' . drupal_render($element['title']) . '</div>';
}
$output .= '<div class="link-field-url' . (isset($element['title']) ? ' link-field-column' : '') . '">' . drupal_render($element['url']) . '</div>';
$output .= '</div>';
if (!empty($element['attributes']['target'])) {
$output .= '<div class="link-attributes">' . drupal_render($element['attributes']['target']) . '</div>';
}
if (!empty($element['attributes']['title'])) {
$output .= '<div class="link-attributes">' . drupal_render($element['attributes']['title']) . '</div>';
}
if (!empty($element['attributes']['class'])) {
$output .= '<div class="link-attributes">' . drupal_render($element['attributes']['class']) . '</div>';
}
$output .= drupal_render_children($element);
return $output;
}
function link_element_info() {
$elements = array();
$elements['link_field'] = array(
'#input' => TRUE,
'#process' => array(
'link_field_process',
),
'#theme' => 'link_field',
'#theme_wrappers' => array(
'form_element',
),
);
return $elements;
}
function _link_default_attributes() {
return array(
'target' => LINK_TARGET_DEFAULT,
'class' => '',
'rel' => '',
);
}
function link_field_process($element, $form_state, $complete_form) {
$instance = field_widget_instance($element, $form_state);
if (!$instance) {
$instance['settings'] = array(
'title_maxlength' => isset($element['#title_maxlength']) ? $element['#title_maxlength'] : 128,
'title' => isset($element['#title_mode']) ? $element['#title_mode'] : 'optional',
'title_label_use_field_label' => isset($element['#title_label_use_field_label']) ? $element['#title_label_use_field_label'] : FALSE,
'url' => isset($element['#url']) ? $element['#url'] : 'optional',
);
if (isset($element['#attributes'])) {
$instance['settings']['attributes'] = $element['#attributes'];
}
}
$settings = $instance['settings'];
$element['url'] = array(
'#type' => 'textfield',
'#maxlength' => LINK_URL_MAX_LENGTH,
'#title' => t('URL'),
'#required' => $element['#delta'] == 0 && $settings['url'] !== 'optional' ? $element['#required'] : FALSE,
'#default_value' => isset($element['#value']['url']) ? $element['#value']['url'] : NULL,
);
if (in_array($settings['title'], array(
'optional',
'required',
))) {
if (!empty($settings['title_label_use_field_label'])) {
$title_label = $element['#title'];
$element['#title_display'] = 'invisible';
}
else {
$title_label = t('Title');
}
$title_maxlength = 128;
if (!empty($settings['title_maxlength'])) {
$title_maxlength = $settings['title_maxlength'];
}
$element['title'] = array(
'#type' => 'textfield',
'#maxlength' => $title_maxlength,
'#title' => $title_label,
'#description' => t('The link title is limited to @maxlength characters maximum.', array(
'@maxlength' => $title_maxlength,
)),
'#required' => $settings['title'] == 'required' && ($element['#delta'] == 0 && $element['#required'] || !empty($element['#value']['url'])) ? TRUE : FALSE,
'#default_value' => isset($element['#value']['title']) ? $element['#value']['title'] : NULL,
);
}
elseif ($settings['title'] == 'select') {
$options = drupal_map_assoc(array_filter(explode("\n", str_replace("\r", "\n", trim($settings['title_allowed_values'])))));
$element['title'] = array(
'#type' => 'select',
'#title' => t('Title'),
'#description' => t('Select the a title for this link.'),
'#default_value' => isset($element['#value']['title']) ? $element['#value']['title'] : NULL,
'#options' => $options,
'#empty_value' => '',
);
}
if (!is_array($settings['attributes'])) {
$settings['attributes'] = array();
}
$settings['attributes'] += _link_default_attributes();
$attributes = isset($element['#value']['attributes']) ? $element['#value']['attributes'] : $settings['attributes'];
if (!empty($settings['attributes']['target']) && $settings['attributes']['target'] == LINK_TARGET_USER) {
$element['attributes']['target'] = array(
'#type' => 'checkbox',
'#title' => t('Open URL in a New Window'),
'#return_value' => LINK_TARGET_NEW_WINDOW,
'#default_value' => isset($attributes['target']) ? $attributes['target'] : FALSE,
);
}
if (!empty($settings['attributes']['configurable_title']) && $settings['attributes']['configurable_title'] == 1) {
$element['attributes']['title'] = array(
'#type' => 'textfield',
'#title' => t('Link "title" attribute'),
'#default_value' => isset($attributes['title']) ? $attributes['title'] : '',
'#field_prefix' => 'title = "',
'#field_suffix' => '"',
);
}
if (!empty($settings['attributes']['configurable_class']) && $settings['attributes']['configurable_class'] == 1) {
$element['attributes']['class'] = array(
'#type' => 'textfield',
'#title' => t('Custom link class'),
'#default_value' => isset($attributes['class']) ? $attributes['class'] : '',
'#field_prefix' => 'class = "',
'#field_suffix' => '"',
);
}
if (isset($element['title']) || isset($element['_weight'])) {
$element['#required'] = FALSE;
}
return $element;
}
function link_field_formatter_info() {
return array(
'link_default' => array(
'label' => t('Title, as link (default)'),
'field types' => array(
'link_field',
),
'multiple values' => FIELD_BEHAVIOR_DEFAULT,
'settings' => array(
'custom_title' => '',
),
),
'link_title_plain' => array(
'label' => t('Title, as plain text'),
'field types' => array(
'link_field',
),
'multiple values' => FIELD_BEHAVIOR_DEFAULT,
),
'link_host' => array(
'label' => t('Host, as plain text'),
'field types' => array(
'link_field',
),
'multiple values' => FIELD_BEHAVIOR_DEFAULT,
),
'link_url' => array(
'label' => t('URL, as link'),
'field types' => array(
'link_field',
),
'multiple values' => FIELD_BEHAVIOR_DEFAULT,
),
'link_plain' => array(
'label' => t('URL, as plain text'),
'field types' => array(
'link_field',
),
'multiple values' => FIELD_BEHAVIOR_DEFAULT,
),
'link_absolute' => array(
'label' => t('URL, absolute'),
'field types' => array(
'link_field',
),
'multiple values' => FIELD_BEHAVIOR_DEFAULT,
),
'link_domain' => array(
'label' => t('Domain, as link'),
'field types' => array(
'link_field',
),
'multiple values' => FIELD_BEHAVIOR_DEFAULT,
'settings' => array(
'strip_www' => FALSE,
),
),
'link_no_protocol' => array(
'label' => t('URL with the protocol removed'),
'field types' => array(
'link_field',
),
'multiple values' => FIELD_BEHAVIOR_DEFAULT,
),
'link_short' => array(
'label' => t('Short, as link with title "Link"'),
'field types' => array(
'link_field',
),
'multiple values' => FIELD_BEHAVIOR_DEFAULT,
),
'link_label' => array(
'label' => t('Label, as link with label as title'),
'field types' => array(
'link_field',
),
'multiple values' => FIELD_BEHAVIOR_DEFAULT,
),
'link_separate' => array(
'label' => t('Separate title and URL'),
'field types' => array(
'link_field',
),
'multiple values' => FIELD_BEHAVIOR_DEFAULT,
),
);
}
function link_field_formatter_settings_form($field, $instance, $view_mode, $form, &$form_state) {
$display = $instance['display'][$view_mode];
$settings = $display['settings'];
$element = array();
if ($display['type'] == 'link_domain') {
$element['strip_www'] = array(
'#title' => t('Strip www. from domain'),
'#type' => 'checkbox',
'#default_value' => $settings['strip_www'],
);
}
if ($display['type'] == 'link_default') {
$element['custom_title'] = array(
'#title' => t('Override title'),
'#description' => t('Optionally override the title for the link(s).'),
'#type' => 'textfield',
'#default_value' => $settings['custom_title'],
);
}
return $element;
}
function link_field_formatter_settings_summary($field, $instance, $view_mode) {
$display = $instance['display'][$view_mode];
if ($display['type'] == 'link_domain') {
if ($display['settings']['strip_www']) {
return t('Strip www. from domain');
}
else {
return t('Leave www. in domain');
}
}
if ($display['type'] == 'link_default') {
if ($display['settings']['custom_title']) {
return t('Title: %title', array(
'%title' => $display['settings']['custom_title'],
));
}
}
return '';
}
function link_field_formatter_view($entity_type, $entity, $field, $instance, $langcode, $items, $display) {
$elements = array();
foreach ($items as $delta => $item) {
if (!empty($display['settings']['custom_title'])) {
$item['title'] = $display['settings']['custom_title'];
}
$elements[$delta] = array(
'#theme' => 'link_formatter_' . $display['type'],
'#element' => $item,
'#field' => $instance,
'#display' => array(
'settings' => $display['settings'],
),
);
}
return $elements;
}
function theme_link_formatter_link_default($vars) {
$link_options = $vars['element'];
unset($link_options['title']);
unset($link_options['url']);
if (isset($link_options['attributes']['class'])) {
$link_options['attributes']['class'] = array(
$link_options['attributes']['class'],
);
}
if (!empty($vars['element']['title']) && !empty($vars['element']['url'])) {
return l($vars['element']['title'], rawurldecode($vars['element']['url']), $link_options);
}
elseif (!empty($vars['element']['title'])) {
return !empty($link_options['html']) ? $vars['element']['title'] : check_plain($vars['element']['title']);
}
elseif (!empty($vars['element']['url'])) {
return l($vars['element']['title'], rawurldecode($vars['element']['url']), $link_options);
}
}
function theme_link_formatter_link_plain($vars) {
$link_options = $vars['element'];
if (isset($link_options['title'])) {
unset($link_options['title']);
}
else {
$vars['element']['title'] = '';
}
unset($link_options['url']);
return empty($vars['element']['url']) ? check_plain($vars['element']['title']) : url($vars['element']['url'], $link_options);
}
function theme_link_formatter_link_host($vars) {
$host = @parse_url($vars['element']['url']);
return isset($host['host']) ? check_plain($host['host']) : '';
}
function theme_link_formatter_link_absolute($vars) {
if (empty($vars['element']['url'])) {
return '';
}
$vars['element']['absolute'] = TRUE;
return url($vars['element']['url'], $vars['element']);
}
function theme_link_formatter_link_domain($vars) {
if (empty($vars['element']['url'])) {
return '';
}
$link_options = $vars['element'];
unset($link_options['title']);
unset($link_options['url']);
$domain = parse_url($vars['element']['display_url'], PHP_URL_HOST);
if (!empty($vars['display']['settings']['strip_www'])) {
$domain = str_replace('www.', '', $domain);
}
return l($domain, $vars['element']['url'], $link_options);
}
function theme_link_formatter_link_no_protocol($vars) {
if (empty($vars['element']['url'])) {
return '';
}
$link_options = $vars['element'];
unset($link_options['title']);
unset($link_options['url']);
$scheme = parse_url($vars['element']['url']);
$search = '/' . preg_quote($scheme['scheme'] . '://', '/') . '/';
$replace = '';
$display_url = preg_replace($search, $replace, $vars['element']['url'], 1);
return l($display_url, $vars['element']['url'], $link_options);
}
function theme_link_formatter_link_title_plain($vars) {
if (empty($vars['element']['title'])) {
return '';
}
return check_plain(decode_entities($vars['element']['title']));
}
function theme_link_formatter_link_url($vars) {
if (empty($vars['element']['url'])) {
return '';
}
$link_options = $vars['element'];
if (isset($link_options['attributes']['class'])) {
$link_options['attributes']['class'] = array(
$link_options['attributes']['class'],
);
}
unset($link_options['title']);
unset($link_options['url']);
return l($vars['element']['display_url'], $vars['element']['url'], $link_options);
}
function theme_link_formatter_link_short($vars) {
if (empty($vars['element']['url'])) {
return '';
}
$link_options = $vars['element'];
unset($link_options['title']);
unset($link_options['url']);
return l(t('Link'), $vars['element']['url'], $link_options);
}
function theme_link_formatter_link_label($vars) {
if (empty($vars['element']['url'])) {
return '';
}
$link_options = $vars['element'];
unset($link_options['title']);
unset($link_options['url']);
$label = $vars['field']['label'];
if (function_exists('i18n_string_translate')) {
$i18n_string_name = "field:{$vars['field']['field_name']}:{$vars['field']['bundle']}:label";
$label = i18n_string_translate($i18n_string_name, $label);
}
return l($label, $vars['element']['url'], $link_options);
}
function theme_link_formatter_link_separate($vars) {
$class = empty($vars['element']['attributes']['class']) ? '' : ' ' . $vars['element']['attributes']['class'];
unset($vars['element']['attributes']['class']);
$link_options = $vars['element'];
unset($link_options['title']);
unset($link_options['url']);
$title = empty($vars['element']['title']) ? '' : check_plain($vars['element']['title']);
$url_parts = _link_parse_url($vars['element']['url']);
$output = '';
$output .= '<div class="link-item ' . $class . '">';
if (!empty($title)) {
$output .= '<div class="link-title">' . $title . '</div>';
}
$output .= '<div class="link-url">' . l($url_parts['url'], $vars['element']['url'], $link_options) . '</div>';
$output .= '</div>';
return $output;
}
function link_token_list($type = 'all') {
if ($type === 'field' || $type === 'all') {
$tokens = array();
$tokens['link']['url'] = t("Link URL");
$tokens['link']['title'] = t("Link title");
$tokens['link']['view'] = t("Formatted html link");
return $tokens;
}
}
function link_token_values($type, $object = NULL) {
if ($type === 'field') {
$item = $object[0];
$tokens['url'] = $item['url'];
$tokens['title'] = $item['title'];
$tokens['view'] = isset($item['view']) ? $item['view'] : '';
return $tokens;
}
}
function link_views_api() {
return array(
'api' => 2,
'path' => drupal_get_path('module', 'link') . '/views',
);
}
function link_cleanup_url($url, $protocol = 'http') {
try {
link_ensure_valid_default_protocol();
} catch (Exception $e) {
watchdog('link', $e
->getMessage(), array(), WATCHDOG_ERROR);
}
$url = trim($url);
$type = link_url_type($url);
if ($type === LINK_EXTERNAL) {
$protocol_match = preg_match("/^([a-z0-9][a-z0-9\\.\\-_]*:\\/\\/)/i", $url);
if (empty($protocol_match)) {
$link_domains = _link_domains();
$domain_match = preg_match('/^(([a-z0-9]([a-z0-9\\-_]*\\.)+)(' . $link_domains . '|[a-z]{2}))/i', $url);
if (!empty($domain_match)) {
$url = $protocol . "://" . $url;
}
}
}
return $url;
}
function link_ensure_valid_default_protocol() {
$protocol = variable_get('link_default_protocol', LINK_HTTP_PROTOCOL);
if ($protocol !== LINK_HTTP_PROTOCOL && $protocol !== LINK_HTTPS_PROTOCOL) {
variable_set('link_default_protocol', LINK_HTTP_PROTOCOL);
throw new Exception(t('Protocol was set to !protocol but must be !HTTP or !HTTPS. Set to default HTTP.', array(
'!protocol' => $protocol,
'!HTTP' => LINK_HTTP_PROTOCOL,
'!HTTPS' => LINK_HTTPS_PROTOCOL,
)));
}
}
function link_validate_url($text, $langcode = NULL) {
$text = _link_clean_relative($text);
$text = link_cleanup_url($text);
$type = link_url_type($text);
if ($type && ($type == LINK_INTERNAL || $type == LINK_EXTERNAL)) {
$flag = valid_url($text, $type == LINK_EXTERNAL);
if (!$flag) {
$normal_path = drupal_get_normal_path($text, $langcode);
$parsed_link = parse_url($normal_path, PHP_URL_PATH);
if ($normal_path != $parsed_link) {
$normal_path = $parsed_link;
}
$flag = drupal_valid_path($normal_path);
}
if (!$flag) {
$flag = file_exists($normal_path);
}
if (!$flag) {
$uri = file_build_uri($normal_path);
$flag = file_exists($uri);
}
}
else {
$flag = (bool) $type;
}
return $flag;
}
function _link_clean_relative($url) {
$check = substr($url, 0, 2);
if (isset($_SERVER['HTTPS']) && ($_SERVER['HTTPS'] == 'on' || $_SERVER['HTTPS'] == 1) || isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && $_SERVER['HTTP_X_FORWARDED_PROTO'] == 'https') {
$protocol = 'https://';
}
else {
$protocol = 'http://';
}
if ($check == '//') {
$url = str_replace('//', $protocol, $url);
}
return $url;
}
function link_url_type($text) {
$link_ichars_domain = (string) html_entity_decode(implode("", array(
"¿",
"À",
"Á",
"Â",
"Ã",
"Ä",
"Å",
"Æ",
"Ç",
"È",
"É",
"Ê",
"Ë",
"Ì",
"Í",
"Î",
"Ï",
"Ð",
"Ñ",
"Ò",
"Ó",
"Ô",
"Õ",
"Ö",
"Ø",
"Ù",
"Ú",
"Û",
"Ü",
"Ý",
"Þ",
"à",
"á",
"â",
"ã",
"ä",
"å",
"æ",
"ç",
"è",
"é",
"ê",
"ë",
"ì",
"í",
"î",
"ï",
"ð",
"ñ",
"ò",
"ó",
"ô",
"õ",
"ö",
"ø",
"ù",
"ú",
"û",
"ü",
"ý",
"þ",
"ÿ",
"Œ",
"œ",
"Ÿ",
)), ENT_QUOTES, 'UTF-8');
$link_ichars = $link_ichars_domain . (string) html_entity_decode(implode("", array(
"ß",
)), ENT_QUOTES, 'UTF-8');
$allowed_protocols = variable_get('filter_allowed_protocols', array(
'http',
'https',
'ftp',
'file',
'news',
'nntp',
'telnet',
'mailto',
'irc',
'ssh',
'sftp',
'webcal',
'tel',
));
$link_domains = _link_domains();
$protocol = '((?:' . implode("|", $allowed_protocols) . '):\\/\\/)';
$authentication = "(?:(?:(?:[\\w\\.\\-\\+!\$&'\\(\\)*\\+,;=" . $link_ichars . "]|%[0-9a-f]{2})+(?::(?:[\\w" . $link_ichars . "\\.\\-\\+%!\$&'\\(\\)*\\+,;=]|%[0-9a-f]{2})*)?)?@)";
$domain = '(?:(?:[a-zA-Z0-9' . $link_ichars_domain . ']([a-zA-Z0-9' . $link_ichars_domain . '\\-_\\[\\]])*)(\\.(([a-zA-Z0-9' . $link_ichars_domain . '\\-_\\[\\]])+\\.)*(' . $link_domains . '|[a-z]{2}))?)';
$ipv4 = '(?:[0-9]{1,3}(\\.[0-9]{1,3}){3})';
$ipv6 = '(?:[0-9a-fA-F]{1,4}(\\:[0-9a-fA-F]{1,4}){7})';
$port = '(?::([0-9]{1,5}))';
$external_pattern = '/^' . $protocol . '?' . $authentication . '?(' . $domain . '|' . $ipv4 . '|' . $ipv6 . ' |localhost)' . $port . '?';
$internal_pattern = "/^(?:[a-z0-9" . $link_ichars . "_\\-+\\[\\] ]+)";
$internal_pattern_file = "/^(?:[a-z0-9" . $link_ichars . "_\\-+\\[\\]\\. \\/\\(\\)][a-z0-9" . $link_ichars . "_\\-+\\[\\]\\. \\(\\)][a-z0-9" . $link_ichars . "_\\-+\\[\\]\\. \\/\\(\\)]+)\$/i";
$directories = "(?:\\/[a-z0-9" . $link_ichars . "_\\-\\.~+%=&,\$'#!():;*@\\[\\]]*)*";
$query = "(?:\\/?\\?([?a-zA-Z0-9" . $link_ichars . "+_|\\-\\.~\\/\\\\%=&,\$'!():;*@\\[\\]{} ]*))";
$anchor = "(?:#[a-zA-Z0-9" . $link_ichars . "_\\-\\.~+%=&,\$'():;*@\\[\\]\\/\\?!]*)";
$end = $directories . '?' . $query . '?' . $anchor . '?' . '$/i';
$message_id = '[^@].*@' . $domain;
$newsgroup_name = '(?:[0-9a-z+-]*\\.)*[0-9a-z+-]*';
$news_pattern = '/^news:(' . $newsgroup_name . '|' . $message_id . ')$/i';
$user = '[a-zA-Z0-9' . $link_ichars . '_\\-\\.\\+\\^!#\\$%&*+\\/\\=\\?\\`\\|\\{\\}~\'\\[\\]]+';
$email_pattern = '/^mailto:' . $user . '@' . '(?:' . $domain . '|' . $ipv4 . '|' . $ipv6 . '|localhost)' . $query . '?$/';
$tel_pattern = '/^tel:(?:\\+[1-9]\\d{1,14}|\\d{2,15})$/';
$file_pattern = "/^(?:file:\\/\\/)" . "(?:\\/?[a-z0-9" . $link_ichars . "_\\-\\.\\\\~+%=&,\$'#!():;*@\\[\\]]*)*" . '$/i';
if (strpos($text, '<front>') === 0) {
return LINK_FRONT;
}
if (in_array('mailto', $allowed_protocols) && preg_match($email_pattern, $text)) {
return LINK_EMAIL;
}
if (strpos($text, '#') === 0) {
return LINK_FRAGMENT;
}
if (strpos($text, '?') === 0) {
return LINK_QUERY;
}
if (in_array('tel', $allowed_protocols) && strpos($text, 'tel:') === 0) {
if (preg_match($tel_pattern, $text)) {
return LINK_TEL;
}
else {
return FALSE;
}
}
if (in_array('news', $allowed_protocols) && preg_match($news_pattern, $text)) {
return LINK_NEWS;
}
if (in_array('file', $allowed_protocols) && preg_match($file_pattern, $text, $as)) {
return LINK_FILE;
}
if (preg_match($internal_pattern . $end, $text)) {
return LINK_INTERNAL;
}
if (drupal_valid_path($text) && url_is_external($text) == FALSE) {
return LINK_INTERNAL;
}
if (preg_match($external_pattern . $end, $text)) {
return LINK_EXTERNAL;
}
if (preg_match($internal_pattern_file, $text)) {
return LINK_INTERNAL;
}
return FALSE;
}
function _link_domains() {
$link_allowed_domains = variable_get('link_allowed_domains', array());
return empty($link_allowed_domains) ? '[a-z][a-z0-9-]{1,62}' : implode('|', $link_allowed_domains);
}
function link_content_migrate_field_alter(&$field_value, $instance_value) {
if ($field_value['type'] == 'link') {
$field_value['type'] = 'link_field';
foreach (array(
'attributes',
'display',
'url',
'title',
'title_value',
'enable_tokens',
'validate_url',
) as $setting) {
unset($field_value['settings'][$setting]);
}
}
}
function link_content_migrate_instance_alter(&$instance_value, $field_value) {
if ($field_value['type'] == 'link') {
foreach (array(
'attributes',
'display',
'url',
'title',
'title_value',
'enable_tokens',
'validate_url',
) as $setting) {
if (isset($field_value['settings'][$setting])) {
$instance_value['settings'][$setting] = $field_value['settings'][$setting];
}
}
if ($instance_value['widget']['type'] == 'link') {
$instance_value['widget']['type'] = 'link_field';
}
foreach ($instance_value['display'] as $context => $settings) {
if (in_array($settings['type'], array(
'default',
'title_plain',
'url',
'plain',
'short',
'label',
'separate',
))) {
$instance_value['display'][$context]['type'] = 'link_' . $settings['type'];
}
}
}
}
function link_field_settings_form() {
return array();
}
function link_field_property_info_callback(&$info, $entity_type, $field, $instance, $field_type) {
$property =& $info[$entity_type]['bundles'][$instance['bundle']]['properties'][$field['field_name']];
$property['getter callback'] = 'entity_metadata_field_verbatim_get';
$property['setter callback'] = 'entity_metadata_field_verbatim_set';
$property['auto creation'] = 'link_field_item_create';
$property['property info'] = link_field_item_property_info();
$property['property info']['url']['required'] = $instance['required'] && !$instance['settings']['url'];
$property['property info']['title']['required'] = $instance['required'] && $instance['settings']['title'] == 'required';
if ($instance['settings']['title'] == 'none') {
unset($property['property info']['title']);
}
unset($property['query callback']);
}
function link_field_item_create() {
return array(
'title' => NULL,
'url' => NULL,
'display_url' => NULL,
);
}
function link_field_item_property_info() {
$properties['title'] = array(
'type' => 'text',
'label' => t('The title of the link.'),
'setter callback' => 'entity_property_verbatim_set',
);
$properties['url'] = array(
'type' => 'text',
'label' => t('The URL of the link.'),
'setter callback' => 'entity_property_verbatim_set',
'getter callback' => 'link_url_property_get',
);
$properties['attributes'] = array(
'type' => 'struct',
'label' => t('The attributes of the link.'),
'setter callback' => 'entity_property_verbatim_set',
'getter callback' => 'link_attribute_property_get',
);
$properties['display_url'] = array(
'type' => 'uri',
'label' => t('The full URL of the link.'),
'setter callback' => 'entity_property_verbatim_set',
);
return $properties;
}
function link_url_property_get($data, array $options, $name, $type, $info) {
$url = entity_property_verbatim_get($data, $options, $name, $type, $info);
return url($url, $data + $options);
}
function link_attribute_property_get($data, array $options, $name, $type, $info) {
return isset($data[$name]) ? array_filter($data[$name]) : array();
}
function link_field_update_instance($instance, $prior_instance) {
if (function_exists('i18n_string_update') && isset($instance['widget']) && $instance['widget']['type'] == 'link_field' && $prior_instance['settings']['title_value'] != $instance['settings']['title_value']) {
$i18n_string_name = "field:{$instance['field_name']}:{$instance['bundle']}:title_value";
i18n_string_update($i18n_string_name, $instance['settings']['title_value']);
}
}
function link_i18n_string_list_field_alter(&$strings, $type = NULL, $object = NULL) {
if ($type != 'field_instance' || !is_array($object) || !isset($object['widget']['type'])) {
return;
}
if ($object['widget']['type'] == 'link_field' && isset($object['settings']['title_value'])) {
$strings['field'][$object['field_name']][$object['bundle']]['title_value']['string'] = $object['settings']['title_value'];
}
}
