<?php
/*
+--------------------------------------------------------------------+
| Copyright CiviCRM LLC. All rights reserved. |
| |
| This work is published under the GNU AGPLv3 license with some |
| permitted exceptions and without any warranty. For full license |
| and copyright information, see https://civicrm.org/licensing |
+--------------------------------------------------------------------+
*/
/**
*
* @package CRM
* @copyright CiviCRM LLC https://civicrm.org/licensing
*
*/
// This file must not accessed directly.
if (!defined('ABSPATH')) {
exit;
}
/**
* Define CiviCRM_For_WordPress_Shortcodes Class.
*
* @since 4.6
*/
class CiviCRM_For_WordPress_Shortcodes {
/**
* @var object
* Plugin object reference.
* @since 4.6
* @access public
*/
public $civi;
/**
* @var array
* The stored shortcodes.
* @since 4.6
* @access public
*/
public $shortcodes = [];
/**
* @var array
* The array of rendered shortcode markup.
* @since 4.6
* @access public
*/
public $shortcode_markup = [];
/**
* @var array
* Count multiple passes of do_shortcode in a post.
* @since 4.6
* @access public
*/
public $shortcode_in_post = [];
/**
* Instance constructor.
*
* @since 4.6
*/
public function __construct() {
// Store reference to CiviCRM plugin object.
$this->civi = civi_wp();
}
/**
* Register hooks to handle the presence of shortcodes in content.
*
* @since 4.6
*/
public function register_hooks() {
// Register the CiviCRM shortcode.
add_shortcode('civicrm', [$this, 'render_single']);
// Pre-render CiviCRM content when one or more Shortcodes are detected.
add_action('wp', [$this, 'prerender'], 20, 1);
}
/**
* Determine if a CiviCRM shortcode is present in any of the posts about to be displayed.
*
* Callback method for 'wp' hook, always called from WordPress front-end.
*
* @since 4.6
*
* @param object $wp The WordPress object, present but not used.
*/
public function prerender($wp) {
/*
* At this point, all conditional tags are available
* @see https://codex.wordpress.org/Conditional_Tags
*/
// Bail if this is a 404.
if (is_404()) {
return;
}
// Bail if this is a Favicon request.
if (is_favicon()) {
return;
}
// A counter's useful.
$shortcodes_present = 0;
/*
* Let's loop through the results.
* This also has the effect of bypassing the logic in:
* @see https://github.com/civicrm/civicrm-wordpress/pull/36
*/
if (have_posts()) {
while (have_posts()) {
the_post();
global $post;
// Check for existence of shortcode in content.
if (has_shortcode($post->post_content, 'civicrm')) {
// Get CiviCRM shortcodes in this post.
$shortcodes_array = $this->get_for_post($post->post_content);
// Sanity check.
if (!empty($shortcodes_array)) {
// Add it to our property.
$this->shortcodes[$post->ID] = $shortcodes_array;
// Bump shortcode counter.
$shortcodes_present += count($this->shortcodes[$post->ID]);
}
}
}
}
// Reset loop.
rewind_posts();
// Bail if there are no Shortcodes.
if ($shortcodes_present === 0) {
return;
}
// Set context.
$this->civi->civicrm_context_set('shortcode');
// Did we get any?
if ($shortcodes_present) {
// We need CiviCRM initialised prior to parsing shortcodes.
if (!$this->civi->initialize()) {
return;
}
// How should we handle multiple shortcodes?
if ($shortcodes_present > 1) {
// Add CSS resources for front end.
add_action('wp_enqueue_scripts', [$this->civi, 'front_end_css_load'], 100);
// Let's add dummy markup.
foreach ($this->shortcodes as $post_id => $shortcode_array) {
// Set flag if there are multple shortcodes in this post.
$multiple = (count($shortcode_array) > 1) ? 1 : 0;
foreach ($shortcode_array as $shortcode) {
// Mimic invoke in multiple shortcode context.
$this->shortcode_markup[$post_id][] = $this->render_multiple($post_id, $shortcode, $multiple);
}
}
}
else {
// Add core resources for front end.
add_action('wp', [$this->civi, 'front_end_page_load'], 100);
/*
* Since we have only one shortcode, run the_loop again.
* The DB query has already been done, so this has no significant impact.
*/
if (have_posts()) {
while (have_posts()) {
the_post();
global $post;
// Is this the post?
if (!array_key_exists($post->ID, $this->shortcodes)) {
continue;
}
// The shortcode must be the first item in the shortcodes array.
$shortcode = $this->shortcodes[$post->ID][0];
// Check to see if a shortcode component has been repeated?
$atts = $this->get_atts($shortcode);
// Test for hijacking.
if (isset($atts['hijack']) && $atts['hijack'] == '1') {
add_filter('civicrm_context', [$this, 'get_context']);
}
// Store corresponding markup.
$this->shortcode_markup[$post->ID][] = do_shortcode($shortcode);
// Test for hijacking.
if (isset($atts['hijack']) && $atts['hijack'] == '1') {
// Ditch the filter.
remove_filter('civicrm_context', [$this, 'get_context']);
// Set title.
global $civicrm_wp_title;
$post->post_title = $civicrm_wp_title;
// Override page title.
add_filter('single_post_title', [$this, 'single_page_title'], 50, 2);
// Overwrite content.
add_filter('the_content', [$this, 'get_content']);
}
}
}
// Reset loop.
rewind_posts();
}
}
// Flag that we have parsed shortcodes.
$this->shortcodes_parsed = TRUE;
/**
* Broadcast that shortcodes have been parsed.
*
* @since 4.6
*/
do_action('civicrm_shortcodes_parsed');
}
/**
* Handles CiviCRM-defined shortcodes.
*
* @since 4.6
*
* @param array $atts Shortcode attributes array.
* @return string HTML for output.
*/
public function render_single($atts) {
// Do not parse shortcodes in REST context for PUT, POST and DELETE methods.
if (defined('REST_REQUEST') && REST_REQUEST && (isset($_PUT) || isset($_POST) || isset($_DELETE))) {
// Return the original shortcode.
$shortcode = '[civicrm';
foreach ($atts as $att => $val) {
$shortcode .= ' ' . $att . '="' . $val . '"';
}
$shortcode .= ']';
return $shortcode;
}
// Check if we've already parsed this shortcode.
global $post;
if (is_object($post)) {
if (!empty($this->shortcode_markup)) {
if (isset($this->shortcode_markup[$post->ID])) {
// Set counter flag.
if (!isset($this->shortcode_in_post[$post->ID])) {
$this->shortcode_in_post[$post->ID] = 0;
}
else {
$this->shortcode_in_post[$post->ID]++;
}
// This shortcode must have been rendered.
return $this->shortcode_markup[$post->ID][$this->shortcode_in_post[$post->ID]];
}
}
}
// Preprocess shortcode attributes.
$args = $this->preprocess_atts($atts);
// Check for pathless Shortcode.
if (empty($args['q'])) {
$content = '<p>' . __('This Shortcode could not be handled. It could be malformed or used incorrectly.', 'civicrm') . '</p>';
/**
* Get the markup for "pathless" Shortcodes.
*
* This filter allows plugins or CiviCRM Extensions to modify the markup used
* to display a shortcode that has no CiviCRM route/path. This may be:
*
* * Accidental due to an improperly constructed shortcode or
* * Deliberate because a component may not require a route/path
*
* @since 5.37
*
* @param str $content The default markup for an improperly constructed shortcode.
* @param array $atts The shortcode attributes array.
* @param array $args The shortcode arguments array.
* @param str Context flag - value is either 'single' or 'multiple'.
* @return str The modified shortcode markup.
*/
return apply_filters('civicrm_shortcode_get_markup', $content, $atts, $args, 'single');
}
// If there are *actual* CiviCRM query vars, let them take priority.
if (!$this->civi->civicrm_in_wordpress()) {
// Get the Shortcode Mode setting.
$shortcode_mode = $this->civi->admin->get_shortcode_mode();
/** This filter is documented in includes/civicrm.basepage.php */
$basepage_mode = (bool) apply_filters('civicrm_force_basepage_mode', FALSE, $post);
// Skip unless in "legacy mode" or "Base Page mode" is forced.
if ($shortcode_mode !== 'legacy' || !$basepage_mode) {
// invoke() requires environment variables to be set.
foreach ($args as $key => $value) {
if ($value !== NULL) {
set_query_var($key, $value);
$_REQUEST[$key] = $_GET[$key] = $value;
}
}
}
}
if (!$this->civi->initialize()) {
return '';
}
// Check permission.
$argdata = $this->civi->get_request_args();
if (!$this->civi->users->check_permission($argdata['args'])) {
return $this->civi->users->get_permission_denied();;
}
// Start buffering.
ob_start();
// Now, instead of echoing, Shortcode output ends up in buffer.
$this->civi->invoke();
// Save the output and flush the buffer.
$content = ob_get_clean();
return $content;
}
/**
* Return a generic display for a shortcode instead of a CiviCRM invocation.
*
* @since 4.6
*
* @param int $post_id The containing WordPress post ID.
* @param string $shortcode The shortcode being parsed.
* @param bool $multiple Boolean flag, TRUE if post has multiple shortcodes, FALSE otherwise.
* @return string $markup Generic markup for multiple instances.
*/
private function render_multiple($post_id = FALSE, $shortcode = FALSE, $multiple = 0) {
// Get attributes.
$atts = $this->get_atts($shortcode);
// Pre-process shortcode and retrieve args.
$args = $this->preprocess_atts($atts);
// Get pathless markup from filter callback.
if (empty($args['q'])) {
$markup = '';
/** This filter is documented in includes/civicrm-shortcodes.php */
return apply_filters('civicrm_shortcode_get_markup', $markup, $atts, $args, 'multiple');
}
// Get data for this shortcode.
$data = $this->get_data($atts, $args);
// Sanity check.
if ($data === FALSE) {
return '';
}
// Did we get a title?
$title = __('Content via CiviCRM', 'civicrm');
if (!empty($data['title'])) {
$title = $data['title'];
}
// Init title flag.
$show_title = TRUE;
// Default link.
$link = get_permalink($post_id);
// Default to no class.
$class = '';
// Access CiviCRM config object.
$config = CRM_Core_Config::singleton();
// Do we have multiple shortcodes?
if ($multiple != 0) {
$links = [];
foreach ($args as $var => $arg) {
if (!empty($arg) && $var != 'q') {
$links[] = $var . '=' . $arg;
}
}
$query = implode('&', $links);
// $absolute, $frontend, $forceBackend
$base_url = $this->civi->get_base_url(TRUE, FALSE, FALSE);
// Init query parts.
$queryParts = [];
// When not using Clean URLs.
if (!$config->cleanURL) {
// Construct query parts.
$queryParts[] = 'civiwp=CiviCRM';
if (isset($args['q'])) {
$queryParts[] = 'q=' . $args['q'];
}
if (isset($query)) {
$queryParts[] = $query;
}
// Construct link.
$link = trailingslashit($base_url) . '?' . implode('&', $queryParts);
}
else {
// Clean URLs.
if (isset($args['q'])) {
$base_url = trailingslashit($base_url) . str_replace('civicrm/', '', $args['q']) . '/';
}
if (isset($query)) {
$queryParts[] = $query;
}
$link = $base_url . '?' . implode('&', $queryParts);
}
// Add a class for styling purposes.
$class = ' civicrm-shortcode-multiple';
}
// Test for hijacking.
if (!$multiple) {
if (isset($atts['hijack']) && $atts['hijack'] == '1') {
// Add title to array.
$this->post_titles[$post_id] = $data['title'];
// Override title.
add_filter('the_title', [$this, 'get_title'], 100, 2);
// Overwrite content.
add_filter('the_content', [$this, 'get_content']);
// Don't show title.
$show_title = FALSE;
// Add a class for styling purposes.
$class = ' civicrm-shortcode-single';
}
}
// Set some template variables.
// Description.
$description = FALSE;
if (isset($data['text']) && !empty($data['text'])) {
$description = $data['text'];
}
// Provide an enticing link.
$more_link = sprintf(
'<a href="%s">%s</a>',
$link,
/**
* Filter the CiviCRM shortcode more link text.
*
* @since 4.6
*
* @param str The existing shortcode more link text.
* @return str The modified shortcode more link text.
*/
apply_filters('civicrm_shortcode_more_link', __('Find out more...', 'civicrm'))
);
// Assume CiviCRM footer is not enabled.
$empowered_enabled = FALSE;
$footer = '';
// Test config object for setting.
if ($config->empoweredBy == 1) {
// Footer enabled - define it.
$civi = __('CiviCRM.org - Growing and Sustaining Relationships', 'civicrm');
$logo = '<div class="empowered-by-logo"><span>' . __('CiviCRM', 'civicrm') . '</span></div>';
$civi_link = '<a href="https://civicrm.org/" title="' . $civi . '" target="_blank" class="empowered-by-link">' . $logo . '</a>';
$empowered = sprintf(__('Empowered by %s', 'civicrm'), $civi_link);
/**
* Filter the CiviCRM shortcode footer text.
*
* @since 4.6
*
* @param str $empowered The existing shortcode footer.
* @return str $empowered The modified shortcode footer.
*/
$footer = apply_filters('civicrm_shortcode_footer', $empowered);
$empowered_enabled = TRUE;
}
// Start buffering.
ob_start();
// Include template.
include CIVICRM_PLUGIN_DIR . 'assets/templates/civicrm.shortcode.php';
// Save the output and flush the buffer.
$markup = ob_get_clean();
/**
* Filter the computed CiviCRM shortcode markup.
*
* @since 4.6
*
* @param str $markup The computed shortcode markup.
* @param int $post_id The numeric ID of the WordPress post.
* @param string $shortcode The shortcode being parsed.
* @return str $markup The modified shortcode markup.
*/
return apply_filters('civicrm_shortcode_render_multiple', $markup, $post_id, $shortcode);
}
/**
* In order to hijack the page, we need to override the context.
*
* @since 4.6
*
* @return string The overridden context code.
*/
public function get_context() {
return 'nonpage';
}
/**
* In order to hijack the page, we need to override the content.
*
* @since 4.6
*
* @return string The overridden content.
*/
public function get_content($content) {
global $post;
// Is this the post?
if (!array_key_exists($post->ID, $this->shortcode_markup)) {
return $content;
}
// Bail if it has multiple shortcodes.
if (count($this->shortcode_markup[$post->ID]) > 1) {
return $content;
}
return $this->shortcode_markup[$post->ID][0];
}
/**
* In order to hijack the page, we need to override the title.
*
* @since 4.6
*
* @param string $title The existing title.
* @param int $post_id The numeric ID of the WordPress post.
* @return string $title The overridden title.
*/
public function get_title($title, $post_id = 0) {
// Bail if there is no Post ID.
if (empty($post_id)) {
return $title;
}
// Is this the post?
if (!array_key_exists($post_id, $this->shortcode_markup)) {
return $title;
}
// Bail if it has multiple shortcodes.
if (count($this->shortcode_markup[$post_id]) > 1) {
return $title;
}
// Shortcodes may or may not override title.
if (array_key_exists($post_id, $this->post_titles)) {
$title = $this->post_titles[$post_id];
}
return $title;
}
/**
* Override a WordPress page title with the CiviCRM entity title.
*
* Callback method for 'single_page_title' hook, always called from WordPress
* front-end.
*
* @since 4.6
* @since 5.33 Moved to this class.
*
* @param string $post_title The title of the WordPress page or post.
* @param object $post The WordPress post object the title applies to.
* @return string $civicrm_wp_title The title of the CiviCRM entity.
*/
public function single_page_title($post_title, $post) {
// Sanity check and override.
global $civicrm_wp_title;
if (!empty($civicrm_wp_title)) {
return $civicrm_wp_title;
}
// Fallback
return $post_title;
}
/**
* Detect and return CiviCRM Shortcodes in post content.
*
* @since 4.6
* @since 5.44 Made recursive.
*
* @param str $content The content to parse.
* @return array $shortcodes Array of Shortcodes.
*/
private function get_for_post($content) {
// Init return array.
$shortcodes = [];
// Attempt to discover all instances of the Shortcode.
$pattern = get_shortcode_regex();
if (
preg_match_all('/' . $pattern . '/s', $content, $matches)
&& array_key_exists(2, $matches)
) {
// Get keys for our Shortcode.
$keys = array_keys($matches[2], 'civicrm');
// Add found Shortcodes at this level.
if (!empty($keys)) {
foreach ($keys as $key) {
$shortcodes[] = $matches[0][$key];
}
}
// Recurse when nested Shortcodes are found.
if (!empty($matches[5])) {
foreach ($matches[5] as $match) {
if (!empty($match)) {
$shortcodes_deeper = $this->get_for_post($match);
$shortcodes = array_merge($shortcodes, $shortcodes_deeper);
}
}
}
}
return $shortcodes;
}
/**
* Return attributes for a given CiviCRM shortcode.
*
* @since 4.6
*
* @param $shortcode The shortcode to parse.
* @return array $shortcode_atts Array of shortcode attributes.
*/
private function get_atts($shortcode) {
// Strip all but attributes definitions.
$text = str_replace('[civicrm ', '', $shortcode);
$text = str_replace(']', '', $text);
// Extract attributes.
$shortcode_atts = shortcode_parse_atts($text);
return $shortcode_atts;
}
/**
* Preprocess CiviCRM-defined shortcodes.
*
* @since 4.6
*
* @param array $atts Shortcode attributes array.
* @return array $args Shortcode arguments array.
*/
public function preprocess_atts($atts) {
$defaults = [
'component' => 'contribution',
'action' => NULL,
'mode' => NULL,
'id' => NULL,
'cid' => NULL,
'gid' => NULL,
'cs' => NULL,
'force' => NULL,
];
// Parse Shortcode attributes.
$shortcode_atts = shortcode_atts($defaults, $atts, 'civicrm');
extract($shortcode_atts);
$args = [
'reset' => 1,
'id' => $id,
'force' => $force,
];
// Construct args for known components.
switch ($component) {
case 'contribution':
if ($mode == 'preview' || $mode == 'test') {
$args['action'] = 'preview';
}
switch ($action) {
case 'transact':
$args['q'] = 'civicrm/contribute/transact';
break;
case 'setup':
$args['q'] = 'civicrm/contribute/campaign';
$args['action'] = 'add';
$args['component'] = 'contribute';
unset($args['id']);
$args['pageId'] = $id;
break;
default:
$args['q'] = 'civicrm/contribute/transact';
break;
}
break;
case 'pcp':
if ($mode == 'preview' || $mode == 'test') {
$args['action'] = 'preview';
}
switch ($action) {
case 'transact':
$args['q'] = 'civicrm/contribute/transact';
$args['pcpId'] = $args['id'];
$args['id'] = civicrm_api3('Pcp', 'getvalue', [
'return' => 'page_id',
'id' => $args['pcpId'],
]);
break;
case 'info':
default:
$args['q'] = 'civicrm/pcp/info';
break;
}
break;
case 'event':
switch ($action) {
case 'register':
$args['q'] = 'civicrm/event/register';
if ($mode == 'preview' || $mode == 'test') {
$args['action'] = 'preview';
}
break;
case 'info':
$args['q'] = 'civicrm/event/info';
break;
default:
return FALSE;
}
break;
case 'user-dashboard':
$args['q'] = 'civicrm/user';
unset($args['id']);
break;
case 'profile':
if ($mode == 'edit') {
$args['q'] = 'civicrm/profile/edit';
}
elseif ($mode == 'view') {
$args['q'] = 'civicrm/profile/view';
}
elseif ($mode == 'search') {
$args['q'] = 'civicrm/profile';
}
elseif ($mode == 'map') {
$args['q'] = 'civicrm/profile/map';
$args['map'] = 1;
}
else {
$args['q'] = 'civicrm/profile/create';
}
$args['gid'] = $gid;
break;
case 'petition':
$args['q'] = 'civicrm/petition/sign';
$args['sid'] = $args['id'];
unset($args['id']);
break;
}
/**
* Filter the CiviCRM shortcode arguments.
*
* This filter allows plugins or CiviCRM Extensions to modify the attributes
* that the 'civicrm' shortcode allows. Injected attributes and their values
* will also become available in the $_REQUEST and $_GET arrays.
*
* @since 4.7.28
*
* @param array $args Existing shortcode arguments.
* @param array $shortcode_atts Shortcode attributes.
* @return array $args Modified shortcode arguments.
*/
return apply_filters('civicrm_shortcode_preprocess_atts', $args, $shortcode_atts);
}
/**
* Post-process CiviCRM-defined shortcodes.
*
* @since 4.6
*
* @param array $atts Shortcode attributes array.
* @param array $args Shortcode arguments array.
* @return array|bool $data The array data used to build the shortcode markup, or false on failure.
*/
public function get_data($atts, $args) {
// Init return array.
$data = [];
if (!$this->civi->initialize()) {
return FALSE;
}
/**
* Filter the base CiviCRM API parameters.
*
* This filter allows plugins or CiviCRM Extensions to modify the API call
* when there are multiple shortcodes being rendered.
*
* @since 4.7.28
*
* @param array $params Existing API params.
* @param array $atts Shortcode attributes array.
* @param array $args Shortcode arguments array.
* @return array $params Modified API params.
*/
$params = apply_filters('civicrm_shortcode_api_params', [
'version' => 3,
'sequential' => '1',
], $atts, $args);
// Get the CiviCRM entity via the API.
switch ($atts['component']) {
case 'contribution':
// Add Contribution Page ID.
$params['id'] = $args['id'];
// Call API.
$civi_entity = civicrm_api('contribution_page', 'getsingle', $params);
// Set title.
$data['title'] = $civi_entity['title'];
// Set text, if present.
$data['text'] = '';
if (isset($civi_entity['intro_text'])) {
$data['text'] = $civi_entity['intro_text'];
}
break;
case 'event':
// Add Event ID.
$params['id'] = $args['id'];
// Call API.
$civi_entity = civicrm_api('event', 'getsingle', $params);
// Set title.
switch ($atts['action']) {
case 'register':
$data['title'] = sprintf(
__('Register for %s', 'civicrm'),
$civi_entity['title']
);
break;
case 'info':
default:
$data['title'] = '';
if (!empty($civi_entity['title'])) {
$data['title'] = $civi_entity['title'];
}
break;
}
// Set text, if present.
$data['text'] = '';
if (!empty($civi_entity['summary'])) {
$data['text'] = $civi_entity['summary'];
}
// Override with "description" if "summary" is empty.
if (empty($civi_entity['summary']) && !empty($civi_entity['description'])) {
$data['text'] = $civi_entity['description'];
}
break;
case 'user-dashboard':
// Set title.
$data['title'] = __('Dashboard', 'civicrm');
break;
case 'profile':
// Add Profile ID.
$params['id'] = $args['gid'];
// Call API.
$civi_entity = civicrm_api('uf_group', 'getsingle', $params);
// Set title.
$data['title'] = $civi_entity['title'];
// Set text to empty.
$data['text'] = '';
break;
case 'petition':
// Add Petition ID.
$params['id'] = $atts['id'];
// Call API.
$civi_entity = civicrm_api('survey', 'getsingle', $params);
// Set title.
$data['title'] = $civi_entity['title'];
// Set text, if present.
$data['text'] = '';
if (isset($civi_entity['instructions'])) {
$data['text'] = $civi_entity['instructions'];
}
break;
default:
// Do we need to protect against malformed shortcodes?
break;
}
/**
* Filter the CiviCRM shortcode data array.
*
* This filter allows plugins or CiviCRM Extensions to modify the data used
* to display the shortcode when there are multiple shortcodes being rendered.
*
* @since 4.7.28
*
* @param array $data The existing shortcode data.
* @param array $atts Shortcode attributes array.
* @param array $args Shortcode arguments array.
* @return array $data The modified shortcode data.
*/
return apply_filters('civicrm_shortcode_get_data', $data, $atts, $args);
}
}