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eme-functions.php
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<?php
if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly.
}
function eme_plugin_url() {
$url = wp_cache_get( 'eme_plugin_url' );
if ( $url === false ) {
$url = plugin_dir_url( __FILE__ );
wp_cache_set( 'eme_plugin_url', $url, '', 60 );
}
return $url;
}
function eme_plugin_dir() {
$dir = wp_cache_get( 'eme_plugin_dir' );
if ( $dir === false ) {
$dir = plugin_dir_path( __FILE__ );
wp_cache_set( 'eme_plugin_dir', $dir, '', 60 );
}
return $dir;
}
add_action( 'wp_ajax_eme_client_clock', 'eme_client_clock_ajax' );
add_action( 'wp_ajax_nopriv_eme_client_clock', 'eme_client_clock_ajax' );
function eme_client_clock_ajax() {
$valid = true;
$ret = '0';
// Set php clock values in an array
$phptime_obj = new ExpressiveDate( 'now', EME_TIMEZONE );
// if clock data not set
if ( ! isset( $_COOKIE['eme_client_time'] ) ) {
// no valid data received
$valid = false;
// ret=1 will cause the client browser to refresh, this will allow the cookie to be read upon refresh (and so no global var is needed)
$ret = '1';
// Preset php clock values in client cookie for fall-back if valid client clock data isn't received.
$client_timeinfo['eme_client_unixtime'] = (int) $phptime_obj->format( 'U' ); // Integer seconds since 1/1/1970 @ 12:00 AM
$client_timeinfo['eme_client_seconds'] = (int) $phptime_obj->format( 's' ); // Integer second this minute (0-59)
$client_timeinfo['eme_client_minutes'] = (int) $phptime_obj->format( 'i' ); // Integer minute this hour (0-59)
$client_timeinfo['eme_client_hours'] = (int) $phptime_obj->format( 'h' ); // Integer hour this day (0-23)
$client_timeinfo['eme_client_wday'] = (int) $phptime_obj->format( 'w' ); // Integer day this week (0-6), 0 = Sunday, ... , 6 = Saturday
$client_timeinfo['eme_client_mday'] = (int) $phptime_obj->format( 'j' ); // Integer day this month 1-31)
$client_timeinfo['eme_client_month'] = (int) $phptime_obj->format( 'n' ); // Integer month this year (1-12)
$client_timeinfo['eme_client_fullyear'] = (int) $phptime_obj->format( 'Y' ); // Integer year (1970-9999)
} else {
try {
$client_timeinfo = eme_sanitize_request( json_decode( $_COOKIE['eme_client_time'], true ) );
if ( ! is_array( $client_timeinfo ) ) {
$client_timeinfo = [];
}
$ret = '0';
} catch ( Exception $error ) {
$client_timeinfo = [];
$valid = false;
}
if ( ! isset( $client_timeinfo['eme_client_unixtime'] ) ) {
$client_timeinfo['eme_client_unixtime'] = (int) $phptime_obj->format( 'U' );
}
if ( ! isset( $client_timeinfo['eme_client_seconds'] ) ) {
$client_timeinfo['eme_client_seconds'] = (int) $phptime_obj->format( 's' );
}
if ( ! isset( $client_timeinfo['eme_client_minutes'] ) ) {
$client_timeinfo['eme_client_minutes'] = (int) $phptime_obj->format( 'i' );
}
if ( ! isset( $client_timeinfo['eme_client_hours'] ) ) {
$client_timeinfo['eme_client_hours'] = (int) $phptime_obj->format( 'h' );
}
if ( ! isset( $client_timeinfo['eme_client_wday'] ) ) {
$client_timeinfo['eme_client_wday'] = (int) $phptime_obj->format( 'w' );
}
if ( ! isset( $client_timeinfo['eme_client_mday'] ) ) {
$client_timeinfo['eme_client_mday'] = (int) $phptime_obj->format( 'j' );
}
if ( ! isset( $client_timeinfo['eme_client_month'] ) ) {
$client_timeinfo['eme_client_month'] = (int) $phptime_obj->format( 'n' );
}
if ( ! isset( $client_timeinfo['eme_client_fullyear'] ) ) {
$client_timeinfo['eme_client_fullyear'] = (int) $phptime_obj->format( 'Y' );
}
}
// Cast client clock values as integers to avoid mathematical errors and set in temporary local variables.
$client_unixtime = isset( $_POST['page'] ) ? intval( $_POST['client_unixtime'] ) : 0;
$client_seconds = isset( $_POST['page'] ) ? intval( $_POST['client_seconds'] ) : 0;
$client_minutes = isset( $_POST['page'] ) ? intval( $_POST['client_minutes'] ) : 0;
$client_hours = isset( $_POST['page'] ) ? intval( $_POST['client_hours'] ) : 0;
$client_wday = isset( $_POST['page'] ) ? intval( $_POST['client_wday'] ) : 0;
$client_mday = isset( $_POST['page'] ) ? intval( $_POST['client_mday'] ) : 0;
$client_month = isset( $_POST['client_month'] ) ? intval( $_POST['client_month'] ) : 0;
$client_fullyear = isset( $_POST['client_fullyear'] ) ? intval( $_POST['client_fullyear'] ) : 0;
// Client clock sanity tests
if ( abs( $client_unixtime - $client_timeinfo['eme_client_unixtime'] ) > 300 ) {
$valid = false; // allow +/-5 min difference
}
if ( abs( $client_seconds - 30 ) > 30 ) {
$valid = false; // Seconds <0 or >60
}
if ( abs( $client_minutes - 30 ) > 30 ) {
$valid = false; // Minutes <0 or >60
}
if ( abs( $client_hours - 12 ) > 12 ) {
$valid = false; // Hours <0 or >24
}
if ( abs( $client_wday - 3 ) > 3 ) {
$valid = false; // Weekday <0 or >6
}
if ( abs( $client_mday - $client_timeinfo['eme_client_mday'] ) > 30 ) {
$valid = false; // >30 day difference
}
if ( abs( $client_month - $client_timeinfo['eme_client_month'] ) > 11 ) {
$valid = false; // >11 month difference
}
if ( abs( $client_fullyear - $client_timeinfo['eme_client_fullyear'] ) > 1 ) {
$valid = false; // >1 year difference
}
// To insure mutual consistency, don't use any client values unless they all passed the tests.
if ( $valid ) {
$client_timeinfo['eme_client_unixtime'] = $client_unixtime;
$client_timeinfo['eme_client_seconds'] = $client_seconds;
$client_timeinfo['eme_client_minutes'] = $client_minutes;
$client_timeinfo['eme_client_hours'] = $client_hours;
$client_timeinfo['eme_client_wday'] = $client_wday;
$client_timeinfo['eme_client_mday'] = $client_mday;
$client_timeinfo['eme_client_month'] = $client_month;
$client_timeinfo['eme_client_fullyear'] = $client_fullyear;
}
// client cookie lifetime = 0 (the session)
// the cookie is stored using wp_json_encode and not eme_serialize, to avoid for Object Injection
// See https://www.owasp.org/index.php/PHP_Object_Injection
setcookie( 'eme_client_time', wp_json_encode( $client_timeinfo ), 0, COOKIEPATH, COOKIE_DOMAIN );
echo $ret;
wp_die();
}
function eme_captcha_generate( $file ) {
// 23 letters (not the "l",o","q")
$alphabet = 'abcdefghjkmnpqrstuvwxyz';
$random1 = substr( $alphabet, rand( 1, 23 ) - 1, 1 );
$random2 = rand( 2, 9 );
$rand = rand( 1, 23 ) - 1;
$random3 = substr( $alphabet, rand( 1, 23 ) - 1, 1 );
$random4 = rand( 2, 9 );
$rand = rand( 1, 23 ) - 1;
$random5 = substr( $alphabet, rand( 1, 23 ) - 1, 1 );
$randomtext = $random1 . $random2 . $random3 . $random4 . $random5;
// strtolower not needed, $alphabet lowercase only
//$randomtext=strtolower($randomtext);
$res = 'eme_captcha_' . $file . '-' . md5( $randomtext );
touch( get_temp_dir() . $res );
$im = imagecreatetruecolor( 120, 38 );
// some colors
$white = imagecolorallocate( $im, 255, 255, 255 );
$grey = imagecolorallocate( $im, 128, 128, 128 );
$black = imagecolorallocate( $im, 0, 0, 0 );
$red = imagecolorallocate( $im, 255, 0, 0 );
$blue = imagecolorallocate( $im, 0, 0, 255 );
$green = imagecolorallocate( $im, 0, 255, 0 );
$background_colors = [ $red, $blue, $green, $black ];
// draw rectangle in random color
$background_color = $background_colors[ rand( 0, 3 ) ];
imagefilledrectangle( $im, 0, 0, 120, 38, $background_color );
// replace font.ttf with the location of your own ttf font file
$eme_plugin_dir = eme_plugin_dir();
$font = $eme_plugin_dir . 'font.ttf';
if ( function_exists( 'imagettftext' ) ) {
// add shadow
imagettftext( $im, 25, 8, 15, 28, $grey, $font, $random1 );
imagettftext( $im, 25, -8, 35, 28, $grey, $font, $random2 );
imagettftext( $im, 25, 8, 55, 28, $grey, $font, $random3 );
imagettftext( $im, 25, -8, 75, 28, $grey, $font, $random4 );
imagettftext( $im, 25, 8, 95, 28, $grey, $font, $random5 );
// add text
imagettftext( $im, 25, 8, 8, 30, $white, $font, $random1 );
imagettftext( $im, 25, -8, 28, 30, $white, $font, $random2 );
imagettftext( $im, 25, 8, 48, 30, $white, $font, $random3 );
imagettftext( $im, 25, -8, 68, 30, $white, $font, $random4 );
imagettftext( $im, 25, 8, 88, 30, $white, $font, $random5 );
} else {
// add shadow
imagestring( $im, 5, 15, 5, $random1, $grey );
imagestring( $im, 5, 35, 5, $random2, $grey );
imagestring( $im, 5, 55, 5, $random3, $grey );
imagestring( $im, 5, 75, 5, $random4, $grey );
imagestring( $im, 5, 95, 5, $random5, $grey );
// add text
imagestring( $im, 5, 15, 7, $random1, $white );
imagestring( $im, 5, 35, 7, $random2, $white );
imagestring( $im, 5, 55, 7, $random3, $white );
imagestring( $im, 5, 75, 7, $random4, $white );
imagestring( $im, 5, 95, 7, $random5, $white );
}
// give image back
header( 'Content-type: image/gif' );
imagegif( $im );
imagedestroy( $im );
exit;
}
function eme_load_captcha_html() {
$captcha_id = eme_random_id();
$captcha_url = eme_captcha_url( $captcha_id );
if ( $captcha_url ) {
$replacement = "<input type='hidden' name='eme_captcha_id' value='$captcha_id'><img id='eme_captcha_img' src='$captcha_url'><br><input required='required' type='text' name='captcha_check' id='captcha_check' autocomplete='off' class='nodynamicupdates'>";
} else {
$replacement = __( 'Problem while generating the captcha, please check with the site administrator', 'events-made-easy' );
}
return $replacement;
}
function eme_load_recaptcha_html() {
if ( ! wp_script_is( 'eme-recaptcha', 'enqueued' ) ) {
wp_enqueue_script( 'eme-recaptcha' );
}
$eme_recaptcha_sitekey = get_option( 'eme_recaptcha_site_key' );
return '<!-- Google reCAPTCHA widget -->
<div class="g-recaptcha" data-sitekey="' . $eme_recaptcha_sitekey . '"></div>';
}
function eme_load_hcaptcha_html() {
if ( ! wp_script_is( 'eme-hcaptcha', 'enqueued' ) ) {
wp_enqueue_script( 'eme-hcaptcha' );
}
$eme_hcaptcha_sitekey = get_option( 'eme_hcaptcha_site_key' );
return '<!-- hCaptcha widget -->
<div class="h-captcha" data-sitekey="' . $eme_hcaptcha_sitekey . '"></div>';
}
function eme_load_cfcaptcha_html() {
if ( ! wp_script_is( 'eme-cfcaptcha', 'enqueued' ) ) {
wp_enqueue_script( 'eme-cfcaptcha' );
}
$eme_cfcaptcha_sitekey = get_option( 'eme_cfcaptcha_site_key' );
return '<!-- Cloudflare Turnstile Captcha widget -->
<div class="cf-turnstile" data-sitekey="' . $eme_cfcaptcha_sitekey . '"></div>';
}
function eme_check_recaptcha() {
$eme_recaptcha = get_option( 'eme_recaptcha_for_forms' );
$eme_recaptcha_key = get_option( 'eme_recaptcha_secret_key' );
if ( isset( $_POST['g-recaptcha-response'] ) && ! empty( $eme_recaptcha_key ) && $eme_recaptcha ) {
$url = 'https://www.google.com/recaptcha/api/siteverify?secret=' . $eme_recaptcha_key . '&response=' . eme_sanitize_request( $_POST['g-recaptcha-response'] );
$response = wp_remote_get( $url );
if ( is_wp_error( $response ) ) {
return false;
} else {
$body = wp_remote_retrieve_body( $response );
$responseCaptchaData = json_decode( $body );
if ( $responseCaptchaData->success ) {
return true;
} else {
return false;
}
}
} else {
return false;
}
}
function eme_check_hcaptcha() {
$eme_hcaptcha = get_option( 'eme_hcaptcha_for_forms' );
$eme_hcaptcha_key = get_option( 'eme_hcaptcha_secret_key' );
if ( isset( $_POST['h-captcha-response'] ) && ! empty( $eme_hcaptcha_key ) && $eme_hcaptcha ) {
$url = 'https://hcaptcha.com/siteverify';
$data = [
'secret' => $eme_hcaptcha_key,
'response' => eme_sanitize_request( $_POST['h-captcha-response'] ),
];
$response = wp_remote_post( $url, [ 'body' => $data ] );
if ( is_wp_error( $response ) ) {
return false;
} else {
$body = wp_remote_retrieve_body( $response );
$responseCaptchaData = json_decode( $body );
if ( $responseCaptchaData->success ) {
return true;
} else {
return false;
}
}
} else {
return false;
}
}
function eme_check_cfcaptcha() {
$eme_cfcaptcha = get_option( 'eme_cfcaptcha_for_forms' );
$eme_cfcaptcha_key = get_option( 'eme_cfcaptcha_secret_key' );
if ( isset( $_POST['cf-turnstile-response'] ) && ! empty( $eme_cfcaptcha_key ) && $eme_cfcaptcha ) {
$url = 'https://challenges.cloudflare.com/turnstile/v0/siteverify';
$data = [
'secret' => $eme_cfcaptcha_key,
'response' => eme_sanitize_request( $_POST['cf-turnstile-response'] ),
];
$response = wp_remote_post( $url, [ 'body' => $data ] );
if ( is_wp_error( $response ) ) {
return false;
} else {
$body = wp_remote_retrieve_body( $response );
$responseCaptchaData = json_decode( $body );
if ( $responseCaptchaData->success ) {
return true;
} else {
return false;
}
}
} else {
return false;
}
}
function eme_check_emecaptcha( $remove_upon_success = 0 ) {
if ( empty( $_POST['eme_captcha_id'] ) ) {
return false;
}
if ( empty( $_POST['captcha_check'] ) ) {
return false;
}
$captcha_id = eme_sanitize_filenamechars( $_POST['eme_captcha_id'] );
if ( empty( $captcha_id ) ) {
return false;
}
// make it a bit easier for people and lowercase their response
$captcha_response = eme_sanitize_filenamechars( strtolower( $_POST['captcha_check'] ) );
if ( empty( $captcha_response ) ) {
return false;
}
$res = get_temp_dir() . 'eme_captcha_' . $captcha_id . '-' . md5( $captcha_response );
// normally the captcha gets removed upon validation
// sometimes you do other form validations later on, and then this is not desired
// because if other form validation would fail, the captcha would still be gone
// and people would need to re-enter it
// In such cases, call eme_captcha_remove on the file later on
// (although there's also a cron that removes captchas older than xxx minutes, so no real requirement)
if ( file_exists( $res ) ) {
if ( $remove_upon_success ) {
wp_delete_file( $res );
return true;
} else {
return $res;
}
} else {
return false;
}
}
function eme_check_captcha( $properties = [], $remove_captcha_if_ok = 0 ) {
$captcha_res = false;
if ( (! empty( $properties ) && !empty($properties['captcha_only_logged_out'])) ||
(empty( $properties ) && get_option( 'eme_captcha_only_logged_out' ) ) ) {
if (is_user_logged_in()) {
return true;
}
}
$configured_captchas = eme_get_configured_captchas();
if (! empty( $properties ) && isset($properties['selected_captcha']))
$selected_captcha = $properties['selected_captcha'];
else
$selected_captcha = '';
if ( ( ! empty( $properties ) && $selected_captcha == 'recaptcha' ) || ( empty( $properties ) && isset( $configured_captchas['recaptcha'] ) ) ) {
$captcha_res = eme_check_recaptcha();
if ( ! $captcha_res ) {
$message = esc_html__( 'Please check the Google reCAPTCHA box', 'events-made-easy' );
echo wp_json_encode(
[
'Result' => 'NOK',
'htmlmessage' => $message,
]
);
wp_die();
}
}
if ( ( ! empty( $properties ) && $selected_captcha == 'hcaptcha' ) || ( empty( $properties ) && isset( $configured_captchas['hcaptcha'] ) ) ) {
$captcha_res = eme_check_hcaptcha();
if ( ! $captcha_res ) {
$message = esc_html__( 'Please check the hCaptcha box', 'events-made-easy' );
echo wp_json_encode(
[
'Result' => 'NOK',
'htmlmessage' => $message,
]
);
wp_die();
}
}
if ( ( ! empty( $properties ) && $selected_captcha == 'cfcaptcha' ) || ( empty( $properties ) && isset( $configured_captchas['cfcaptcha'] ) ) ) {
$captcha_res = eme_check_cfcaptcha();
if ( ! $captcha_res ) {
$message = esc_html__( 'Please check the Cloudflare Turnstile box', 'events-made-easy' );
echo wp_json_encode(
[
'Result' => 'NOK',
'htmlmessage' => $message,
]
);
wp_die();
}
}
if ( ( ! empty( $properties ) && $selected_captcha == 'captcha' ) || ( empty( $properties ) && isset( $configured_captchas['captcha'] ) ) ) {
$captcha_res = eme_check_emecaptcha( $remove_captcha_if_ok );
if ( ! $captcha_res ) {
$message = esc_html__( 'You entered an incorrect code', 'events-made-easy' );
echo wp_json_encode(
[
'Result' => 'NOK',
'htmlmessage' => $message,
]
);
wp_die();
}
}
return $captcha_res;
}
function eme_generate_captchas_html($selected_captcha = '') {
if ( eme_is_admin_request() ) {
return '';
}
if ( get_option( 'eme_captcha_only_logged_out' ) && is_user_logged_in() ) {
return '';
}
$configured_captchas = eme_get_configured_captchas();
if (!empty($configured_captchas)) {
if (empty($selected_captcha))
$selected_captcha = array_key_first($configured_captchas);
elseif (!empty($selected_captcha) && !array_key_exists($selected_captcha, $configured_captchas))
$selected_captcha = array_key_first($configured_captchas);
$captcha_function = 'eme_load_'.$selected_captcha.'_html';
if (function_exists($captcha_function))
return $captcha_function();
}
}
function eme_add_captcha_submit( $format, $captcha = '', $add_dyndata = 0 ) {
if ( $add_dyndata && ! preg_match( '/#_DYNAMICDATA/', $format ) ) {
$text = '#_DYNAMICDATA';
if ( preg_match( '/#_SUBMIT/', $format ) ) {
$format = preg_replace( '/#_SUBMIT/', "$text<br>#_SUBMIT", $format );
} else {
$format .= $text;
}
}
$configured_captchas = eme_get_configured_captchas();
if (empty($configured_captchas)) {
$captcha = "";
} elseif (!empty($captcha) && !array_key_exists($captcha, $configured_captchas)) {
$captcha = array_key_first($configured_captchas);
}
if ( !empty($captcha) && ! preg_match( '/#_CFCAPTCHA|#_HCAPTCHA|#_RECAPTCHA|#_CAPTCHA/', $format ) ) {
if ($captcha == 'captcha')
$captcha_text = '<p>' . __( 'Please enter the displayed code.', 'events-made-easy' ) . '</p> #_CAPTCHA';
else
$captcha_text = '#_CAPTCHA';
if ( preg_match( '/#_SUBMIT/', $format ) ) {
$format = preg_replace( '/#_SUBMIT/', "$captcha_text<br>#_SUBMIT", $format );
} else {
$format .= $captcha_text;
}
}
if ( ! preg_match( '/#_SUBMIT/', $format ) ) {
$format .= '<br>#_SUBMIT';
}
return $format;
}
function eme_captcha_remove( $captcha_file ) {
if ( ! empty( $captcha_file ) && is_string( $captcha_file ) && file_exists( $captcha_file ) ) {
wp_delete_file( $captcha_file );
}
}
function eme_if_shortcode($atts, $content) {
// normalize attribute keys, lowercase
$atts = array_change_key_case( (array) $atts, CASE_LOWER );
$atts = shortcode_atts(
[
'tag' => '',
'value' => '',
'eq' => '',
'notvalue' => '',
'ne' => '',
'lt' => '',
'le' => '',
'gt' => '',
'ge' => '',
'contains' => '',
'notcontains' => '',
'is_empty' => 0,
'incsv' => '',
'notincsv' => '',
],
$atts
);
$tag = eme_replace_generic_placeholders($atts['tag']);
$content = eme_replace_generic_placeholders($content);
if ($atts['is_empty']) {
if (empty($tag)) {
return do_shortcode($content);
}
} elseif (is_numeric($atts['value']) || !empty($atts['value'])) {
if ($tag == $atts['value']) {
return do_shortcode($content);
}
} elseif (is_numeric($atts['eq']) || !empty($atts['eq'])) {
if ($tag == $atts['eq']) {
return do_shortcode($content);
}
} elseif (is_numeric($atts['ne']) || !empty($atts['ne'])) {
if ($tag != $atts['ne']) {
return do_shortcode($content);
}
} elseif (is_numeric($atts['notvalue']) || !empty($atts['notvalue'])) {
if ($tag != $atts['notvalue']) {
return do_shortcode($content);
}
} elseif (is_numeric($atts['lt']) || !empty($atts['lt'])) {
if ($tag < $atts['lt']) {
return do_shortcode($content);
}
} elseif (is_numeric($atts['le']) || !empty($atts['le'])) {
if ($tag <= $atts['le']) {
return do_shortcode($content);
}
} elseif (is_numeric($atts['gt']) || !empty($atts['gt'])) {
if ($tag > $atts['gt']) {
return do_shortcode($content);
}
} elseif (is_numeric($atts['ge']) || !empty($atts['ge'])) {
if ($tag >= $atts['ge']) {
return do_shortcode($content);
}
} elseif (is_numeric($atts['contains']) || !empty($atts['contains'])) {
if (strpos($tag, $atts['contains']) !== false) {
return do_shortcode($content);
}
} elseif (is_numeric($atts['notcontains']) || !empty($atts['notcontains'])) {
if (strpos($tag, $atts['notcontains']) === false) {
return do_shortcode($content);
}
} elseif (is_numeric($atts['incsv']) || !empty($atts['incsv'])) {
if (preg_match('/,/', $atts['incsv'])) {
$incsv_arr = explode(',', $atts['incsv']);
foreach ($incsv_arr as $incsv) {
$incsv = trim($incsv);
if (in_array($incsv, explode(',', $tag)) || in_array($incsv, explode(', ', $tag))) {
return do_shortcode($content);
}
}
} elseif (preg_match('/\+/', $atts['incsv'])) {
$incsv_arr = preg_split('/\+/', $atts['incsv'], 0, PREG_SPLIT_NO_EMPTY);
$found = 1;
foreach ($incsv_arr as $incsv) {
$incsv = trim($incsv);
if (!(in_array($incsv, explode(',', $tag)) || in_array($incsv, explode(', ', $tag)))) {
$found = 0;
}
}
if ($found) {
return do_shortcode($content);
}
} else {
$incsv = trim($atts['incsv']);
if (in_array($incsv, explode(',', $tag)) || in_array($incsv, explode(', ', $tag))) {
return do_shortcode($content);
}
}
} elseif (is_numeric($atts['notincsv']) || !empty($atts['notincsv'])) {
if (preg_match('/,/', $atts['notincsv'])) {
$notincsv_arr = explode(',', $atts['notincsv']);
$found = 0;
foreach ($notincsv_arr as $notincsv) {
$notincsv = trim($notincsv);
if (in_array($notincsv, explode(',', $tag)) || in_array($notincsv, explode(', ', $tag))) {
$found = 1;
}
}
if (!$found) {
return do_shortcode($content);
}
} elseif (preg_match('/\+/', $atts['notincsv'])) {
$notincsv_arr = preg_split('/\+/', $atts['notincsv'], 0, PREG_SPLIT_NO_EMPTY);
$found = 0;
foreach ($notincsv_arr as $notincsv) {
$notincsv = trim($notincsv);
if (in_array($notincsv, explode(',', $tag)) || in_array($notincsv, explode(', ', $tag))) {
$found = 1;
} else {
$found = 0;
}
}
if (!$found) {
return do_shortcode($content);
}
} else {
$notincsv = trim($atts['notincsv']);
if (!(in_array($notincsv, explode(',', $tag)) || in_array($notincsv, explode(', ', $tag)))) {
return do_shortcode($content);
}
}
} elseif (!empty($tag)) {
return do_shortcode($content);
}
// return empty in all other cases
return '';
}
function eme_for_shortcode( $atts, $content ) {
// normalize attribute keys, lowercase
$atts = array_change_key_case( (array) $atts, CASE_LOWER );
$atts = shortcode_atts(
[
'min' => 1,
'max' => 0,
'list' => '',
'sep' => ',',
],
$atts
);
$min = intval( $atts['min'] );
$max = intval( $atts['max'] );
$result = '';
$loopcounter = 1;
if ( ! empty( $atts['list'] ) ) {
$list = eme_replace_generic_placeholders($atts['list']); // currently mainly usefull to loop over all categories when using #_ALLCATEGORYIDS
$search = [ '#_LOOPVALUE', '#URL_LOOPVALUE', '#_LOOPCOUNTER' ];
$array_values = explode( $atts['sep'], $list );
foreach ( $array_values as $val ) {
$url_val = rawurlencode( $val );
$esc_val = eme_sanitize_request( eme_esc_html( preg_replace( '/\n|\r/', '', $val ) ) );
$replace = [ $esc_val, $url_val, $loopcounter ];
$tmp_content = str_replace( $search, $replace, $content );
$result .= do_shortcode( $tmp_content );
++$loopcounter;
}
} else {
$search = [ '#_LOOPVALUE', '#_LOOPCOUNTER' ];
while ( $min <= $max ) {
$replace = [ $min, $loopcounter ];
$tmp_content = str_replace( $search, $replace, $content );
$result .= do_shortcode( $tmp_content );
++$min;
++$loopcounter;
}
}
return $result;
}
// Returns true if the page in question is the events page
function eme_is_events_page() {
$events_page_id = eme_get_events_page_id();
if ( $events_page_id ) {
return is_page( $events_page_id );
} else {
return false;
}
}
function eme_get_events_page_id() {
// in theory every call to get_option is cached, but since we also check for polylang translation issues
// we don't want to call the pll_ functions too often ...
$page_id = wp_cache_get( "eme_page_id" );
if ( $page_id === false ) {
$page_id = get_option( 'eme_events_page' );
// if a language is set, then remove it
// this needs a bit optimising so it is not executed each time though ...
if ( function_exists( 'pll_get_post_language' ) ) {
$post_lang = pll_get_post_language($page_id);
if (!empty($post_lang)) {
pll_set_post_language($page_id,'');
}
}
wp_cache_set( "eme_page_id", $page_id, '', 5 );
}
return $page_id;
}
function eme_get_events_page( $justurl = 1, $text = '' ) {
$events_page_id = eme_get_events_page_id();
if (!empty($events_page_id)) {
$page_link = get_permalink( $events_page_id );
} else {
$page_link = trailingslashit( home_url() );
}
if ( $justurl || empty( $text ) ) {
$result = $page_link;
} else {
$text = eme_esc_html( $text );
$result = "<a href='$page_link' title='$text'>$text</a>";
}
return $result;
}
function eme_is_single_day_page() {
return ( eme_is_events_page() && ! empty( get_query_var( 'calendar_day' ) ) );
}
function eme_is_single_event_page() {
return ( eme_is_events_page() && ! empty( get_query_var( 'event_id' ) ) );
}
function eme_is_single_location_page() {
return ( eme_is_events_page() && ! empty( get_query_var( 'location_id' ) ) && empty( get_query_var( 'calendar_day' ) ) );
}
function eme_get_contact( $contact_id = 0 ) {
$userinfo = false;
if ($contact_id > 0 ) {
$userinfo = get_userdata( $contact_id );
}
// suppose the user has been deleted ...
if ( $userinfo === false ) {
$contact_id = intval(get_option( 'eme_default_contact_person',0) );
$userinfo = get_userdata( $contact_id );
}
// still false? Means the user doesn't exist and the default contact person neither
if ( $userinfo === false ) {
if ( function_exists( 'is_multisite' ) && is_multisite() ) {
$thisblog = get_current_blog_id();
$userinfo = get_user_by( 'email', get_blog_option( $thisblog, 'admin_email' ) );
} else {
$userinfo = get_user_by( 'email', get_option( 'admin_email' ) );
}
// still nothing ? Can be if the main admin email is not matching a user, so get the first admin
if ( ! $userinfo ) {
$user_query = new WP_User_Query( array( 'role' => 'administrator', 'number' => 1 ) );
$users = $user_query->get_results(); // array of WP_User objects, like get_users
$userinfo = $users[0];
}
}
return $userinfo;
}
function eme_get_event_contact( $event = null ) {
if ( ! is_null( $event ) && ! empty( $event['event_contactperson_id'] ) ) {
$contact_id = $event['event_contactperson_id'];
if ( $contact_id < 1 && isset( $event['event_author'] ) && $event['event_author'] > 0 ) {
$contact_id = $event['event_author'];
}
} else {
$contact_id = intval(get_option( 'eme_default_contact_person',0) );
}
return eme_get_contact( $contact_id );
}
function eme_get_author( $event ) {
$author_id = $event['event_author'];
if ( $author_id < 1 ) {
if ( function_exists( 'is_multisite' ) && is_multisite() ) {
$thisblog = get_current_blog_id();
$userinfo = get_user_by( 'email', get_blog_option( $thisblog, 'admin_email' ) );
} else {
$userinfo = get_user_by( 'email', get_option( 'admin_email' ) );
}
#$contact_id = get_current_user_id();
} else {
$userinfo = get_userdata( $author_id );
}
return $userinfo;
}
function eme_get_user_phone( $user_id ) {
return get_user_meta( $user_id, 'eme_phone', true );
}
function eme_update_user_phone( $user_id, $phone ) {
update_user_meta( $user_id, 'eme_phone', $phone );
}
// got from http://davidwalsh.name/php-email-encode-prevent-spam
function eme_ascii_encode( $e, $target = 'html' ) {
return eme_email_obfuscate( $e, $target );
}
function eme_email_obfuscate( $e, $target = 'html' ) {
if ( $target == 'htmlmail' ) {
return eme_esc_html( $e );
} elseif ( $target == 'text' ) {
return $e;
} else {
$output = '';
if ( has_filter( 'eme_email_obfuscate_filter' ) ) {
$output = apply_filters( 'eme_email_obfuscate_filter', $e );
} else {
for ( $i = 0; $i < strlen( $e ); $i++ ) {
$output .= '&#' . ord( $e[ $i ] ) . ';';
}
}
return $output;
}
}
function eme_unique_slug( $slug, $table, $column, $index_col, $index_colval = 0 ) {
global $wpdb;
$table_name = EME_DB_PREFIX . $table;
$slug = untrailingslashit( $slug );
// code taken from function wp_unique_term_slug
$query = $wpdb->prepare( "SELECT $column FROM $table_name WHERE $index_col<> $index_colval AND $column = %s", $slug );
// it exists .... so strip of the last numbers and start finding new ones
if ( $wpdb->get_var( $query ) ) {
$slug = preg_replace( '/\-\d+$/', '', $slug );
$num = 2;
do {
$alt_slug = $slug . "-$num";
++$num;
$slug_check = $wpdb->get_var( $wpdb->prepare( "SELECT $column FROM $table_name WHERE $index_col<> $index_colval AND $column = %s", $alt_slug ) );
} while ( $slug_check );
$slug = $alt_slug;
}
return $slug;
}
function eme_permalink_convert_noslash( $val ) {
// return the permalink without trailing slash
return eme_permalink_convert( $val, 0 );
}
function eme_permalink_convert( $val, $trailing_slash = 1 ) {
// WP provides a function to convert accents to their ascii counterparts
// called remove_accents, but we also want to replace spaces with "-"
// and trim the last space. sanitize_title_with_dashes does all that
// first call untrailingslashit to remove a trailing '/' if at all present in the value
$val = sanitize_title_with_dashes( remove_accents( untrailingslashit( $val ) ) );
// now remove anything that would be a html char
// from https://stackoverflow.com/questions/2103797/url-friendly-username-in-php
$val = strtolower( trim( preg_replace( '~[^0-9a-z]+~i', '-', html_entity_decode( preg_replace( '~&([a-z]{1,2})(?:acute|cedil|circ|grave|lig|orn|ring|slash|th|tilde|uml);~i', '$1', htmlentities( $val, ENT_QUOTES, 'UTF-8' ) ), ENT_QUOTES, 'UTF-8' ) ), '-' ) );
// and then, add a trailing slash
if ( $trailing_slash ) {
return trailingslashit( $val );
} else {
return $val;
}
}
function eme_event_url( $event, $language = '' ) {
global $wp_rewrite;
if ( $event['event_url'] != '' && get_option( 'eme_use_external_url' ) && eme_is_url( $event['event_url'] ) ) {
$the_link = $event['event_url'];
$parsed = parse_url( $the_link );
if ( empty( $parsed['scheme'] ) ) {
$the_link = 'https://' . ltrim( $the_link, '/' );
}
$the_link = esc_url( $the_link );
} else {
if ( empty( $language ) ) {
$language = eme_detect_lang();
}
if ( isset( $wp_rewrite ) && $wp_rewrite->using_permalinks() && get_option( 'eme_seo_permalink' ) ) {
$events_prefixes = explode( ',', get_option( 'eme_permalink_events_prefix', 'events' ) );
if ( ! empty( $event['event_prefix'] ) && in_array( $event['event_prefix'], $events_prefixes ) ) {
$events_prefix = eme_permalink_convert( $event['event_prefix'] );
} else {
$events_prefix = eme_permalink_convert( $events_prefixes[0] );
}
if ( empty( $event['event_slug'] ) ) {
$name = $events_prefix . $event['event_id'] . '/' . eme_permalink_convert_noslash( $event['event_name'] );
} elseif ( substr( $event['event_slug'], -1 ) == '/' ) { // old style stuff
$name = $events_prefix . $event['event_id'] . '/' . eme_permalink_convert_noslash( $event['event_slug'] );
} else {
$name = $events_prefix . eme_permalink_convert_noslash( $event['event_slug'] );
}
$the_link = eme_uri_add_lang( $name, $language );
} else {
$the_link = eme_get_events_page();
$the_link = add_query_arg( [ 'event_id' => $event['event_id'] ], $the_link );
if ( ! empty( $language ) ) {
// some plugins add the lang info to the home_url, remove it so we don't get into trouble or add it twice
$the_link = remove_query_arg( 'lang', $the_link );
$the_link = add_query_arg( [ 'lang' => $language ], $the_link );
}
}
}
return $the_link;
}
function eme_location_url( $location, $language = '' ) {
global $wp_rewrite;
$the_link = '';
if ( $location['location_url'] != '' && ( get_option( 'eme_use_external_url' ) || $location['location_properties']['online_only'] ) && eme_is_url( $location['location_url'] ) ) {
$the_link = $location['location_url'];
$parsed = parse_url( $the_link );
if ( empty( $parsed['scheme'] ) ) {
$the_link = 'https://' . ltrim( $the_link, '/' );
}
$the_link = esc_url( $the_link );
} elseif ( isset( $location['location_id'] ) && isset( $location['location_name'] ) ) {
if ( empty( $language ) ) {
$language = eme_detect_lang();
}
if ( isset( $wp_rewrite ) && $wp_rewrite->using_permalinks() && get_option( 'eme_seo_permalink' ) ) {
$locations_prefixes = explode( ',', get_option( 'eme_permalink_locations_prefix', 'locations' ) );
if ( ! empty( $location['location_prefix'] ) && in_array( $location['location_prefix'], $locations_prefixes ) ) {
$locations_prefix = eme_permalink_convert( $location['location_prefix'] );
} else {
$locations_prefix = eme_permalink_convert( $locations_prefixes[0] );
}
if ( empty( $location['location_slug'] ) ) {
$name = $locations_prefix . $location['location_id'] . '/' . eme_permalink_convert_noslash( $location['location_name'] );
} elseif ( substr( $location['location_slug'], -1 ) == '/' ) {
$name = $locations_prefix . $location['location_id'] . '/' . eme_permalink_convert_noslash( $location['location_slug'] );
} else {
$name = $locations_prefix . eme_permalink_convert_noslash( $location['location_slug'] );
}
$the_link = eme_uri_add_lang( $name, $language );
} else {
$the_link = eme_get_events_page();
$the_link = add_query_arg( [ 'location_id' => $location['location_id'] ], $the_link );
if ( ! empty( $language ) ) {
// some plugins add the lang info to the home_url, remove it so we don't get into trouble or add it twice
$the_link = remove_query_arg( 'lang', $the_link );
$the_link = add_query_arg( [ 'lang' => $language ], $the_link );
}
}
}
return $the_link;
}
function eme_calendar_day_url( $day ) {
global $wp_rewrite;
$language = eme_detect_lang();
if ( isset( $wp_rewrite ) && $wp_rewrite->using_permalinks() && get_option( 'eme_seo_permalink' ) ) {
$cal_prefix_option = get_option( 'eme_permalink_calendar_prefix', '' );
if ( empty( $cal_prefix_option ) ) {
$events_prefixes = explode( ',', get_option( 'eme_permalink_events_prefix', 'events' ) );
$cal_prefix = eme_permalink_convert( $events_prefixes[0] );
} else {
$cal_prefix = eme_permalink_convert( $cal_prefix_option );
}
$name = $cal_prefix . eme_permalink_convert_noslash( $day );
$the_link = eme_uri_add_lang( $name, $language );
} else {
$the_link = eme_get_events_page();
$the_link = add_query_arg( [ 'calendar_day' => $day ], $the_link );
if ( ! empty( $language ) ) {
// some plugins add the lang info to the home_url, remove it so we don't get into trouble or add it twice
$the_link = remove_query_arg( 'lang', $the_link );
$the_link = add_query_arg( [ 'lang' => $language ], $the_link );
}
}
return $the_link;
}
function eme_booking_confirm_url( $payment ) {
// the user confirm url is actually going to the payment page as well, but we use another permalink to be nicer to people
global $wp_rewrite;
$language = eme_detect_lang();
if ( isset( $wp_rewrite ) && $wp_rewrite->using_permalinks() && get_option( 'eme_seo_permalink' ) ) {
$events_prefixes = explode( ',', get_option( 'eme_permalink_events_prefix', 'events' ) );
$confirm_prefix = eme_permalink_convert( $events_prefixes[0] ) . 'confirm/';
$name = $confirm_prefix . $payment['random_id'];
$the_link = eme_uri_add_lang( $name, $language );
} else {
$the_link = eme_get_events_page();
$the_link = add_query_arg(
[
'eme_pmt_rndid' => $payment['random_id'],
'eme_rsvp_confirm' => 1,
],
$the_link
);
if ( ! empty( $language ) ) {
// some plugins add the lang info to the home_url, remove it so we don't get into trouble or add it twice
$the_link = remove_query_arg( 'lang', $the_link );
$the_link = add_query_arg( [ 'lang' => $language ], $the_link );
}
}
return $the_link;
}
function eme_payment_url( $payment, $resultcode = 0 ) {
global $wp_rewrite;
$language = eme_detect_lang();