| Current File : /home/escuelai/public_html/wp-content/plugins/learnpress/inc/class-lp-helper.php |
<?php
/**
* Class LP_Helper
*/
defined( 'ABSPATH' ) || exit;
class LP_Helper {
/**
* Wrap function unserialize to fix issues with UTF-8 chars when encoding/decoding
* of serialize function.
*
* @param string $string
*
* @return mixed
*/
public static function maybe_unserialize( $string ) {
if ( is_string( $string ) ) {
$unserialized = maybe_unserialize( $string );
if ( ! $unserialized && strlen( $string ) ) {
$string = preg_replace_callback(
'!s:(\d+):"(.*?)";!s',
array( __CLASS__, '_unserialize_replace_callback' ),
$string
);
$unserialized = maybe_unserialize( $string );
}
$string = $unserialized;
}
return $string;
}
public static function _unserialize_replace_callback( $m ) {
$len = strlen( $m[2] );
$result = "s:$len:\"{$m[2]}\";";
return $result;
}
/**
* Shuffle array and keep the keys
*
* @param array $array
*
* @return bool
*/
public static function shuffle_assoc( &$array ) {
$keys = array_keys( $array );
shuffle( $keys );
$new = array();
foreach ( $keys as $key ) {
$new[ $key ] = $array[ $key ];
}
$array = $new;
return true;
}
/**
* MD5 an array.
*
* @param array $array
*
* @return string
*/
public static function array_to_md5( $array ) {
settype( $array, 'array' );
ksort( $array );
return md5( serialize( $array ) );
}
/**
* Load posts from database into cache by ids
*
* @param array|int $ids
*
* @Todo: tungnx - need to review code - addon h5p v4.0.3 still use
* @deprecated 4.1.6.9
*/
public static function cache_posts( $ids ) {
//_deprecated_function( __FUNCTION__, '4.1.6.9' );
}
/**
* Merge two or more classes into one.
*
* @return array
*/
public static function merge_class() {
if ( func_num_args() == 1 ) {
return func_get_arg( 0 );
} elseif ( func_num_args() == 0 ) {
return null;
}
$classes = array();
foreach ( func_get_args() as $class ) {
if ( is_string( $class ) ) {
$cls = explode( ' ', $class );
$classes = array_merge( $classes, $cls );
} else {
$classes = array_merge( $classes, $class );
}
}
$classes = array_filter( $classes );
$classes = array_unique( $classes );
return $classes;
}
/**
* Sanitize order statuses.
* Add prefix lp- into each status if it is not exists.
*
* @param $statuses
*
* @return array|mixed
*/
public static function sanitize_order_status( &$statuses ) {
if ( is_array( $statuses ) ) {
foreach ( $statuses as $k => $status ) {
if ( false === strpos( $status, 'lp-' ) ) {
$statuses[ $k ] = "lp-{$status}";
}
}
} else {
$statuses = preg_split( '#\s+#', $statuses );
self::sanitize_order_status( $statuses );
if ( sizeof( $statuses ) == 1 ) {
$statuses = reset( $statuses );
}
}
return $statuses;
}
/**
* Merge two arrays recursive.
*
* @param array $array1
* @param array $array2
*
* @return array
*/
public static function array_merge_recursive( &$array1, &$array2 ) {
$merged = $array1;
if ( is_array( $array1 ) && is_array( $array2 ) ) {
foreach ( $array2 as $key => & $value ) {
if ( is_array( $value ) && isset( $merged[ $key ] ) && is_array( $merged[ $key ] ) ) {
$merged[ $key ] = self::array_merge_recursive( $merged[ $key ], $value );
} elseif ( is_numeric( $key ) ) {
if ( ! in_array( $value, $merged ) ) {
$merged[] = $value;
}
} else {
$merged[ $key ] = $value;
}
}
} elseif ( is_array( $array2 ) ) {
$merged = $array2;
}
return $merged;
}
/**
* Encode the object to json format.
* Replace number, "false", "true" in couple of quotes with
* original value.
* Example:
* Input: {
* number: "1234",
* true_value: "true",
* false_value: "false"
* }
* Output: {
* number: 1234,
* true_value: true,
* false_value: false
* }
*
* @param array $data
*
* @return false|mixed|string
*/
public static function json_encode( $data ) {
$data = wp_json_encode( $data );
$data = preg_replace_callback(
'~:"(([0-9]+)([.,]?)([0-9]?)|true|false)"~',
array(
__CLASS__,
'_valid_json_value',
),
$data
);
return $data;
}
/**
* Callback function for json_encode method "json_encode".
*
* @param array $m
*
* @return string
*/
public static function _valid_json_value( $m ) {
return str_replace( array( ':"', '"' ), array( ':', '' ), $m[0] );
}
/**
* Create LP static page.
*
* @param array $args
* @param string $key_option
*
* @return bool|int|WP_Error
*/
public static function create_page( array $args, string $key_option ) {
$page_id = 0;
try {
if ( ! isset( $args['post_title'] ) ) {
throw new Exception( __( 'Missing post title', 'learnpress' ) );
}
if ( preg_match( '#^learn_press_single_instructor_page_id.*#', $key_option ) ) {
$args['post_content'] = '<!-- wp:shortcode -->[learn_press_single_instructor]<!-- /wp:shortcode -->';
} elseif ( preg_match( '#^learn_press_instructors_page_id.*#', $key_option ) ) {
$args['post_content'] = '<!-- wp:shortcode -->[learn_press_instructors]<!-- /wp:shortcode -->';
} elseif ( preg_match( '#^learn_press_profile_page_id.*#', $key_option ) ) {
$args['post_content'] = '<!-- wp:shortcode -->[learn_press_profile]<!-- /wp:shortcode -->';
}
$args = array_merge(
[
'post_title' => '',
'post_name' => '',
'post_status' => 'publish',
'post_type' => 'page',
'comment_status' => 'closed',
'post_content' => '',
'post_author' => get_current_user_id(),
],
$args
);
$page_id = wp_insert_post( $args );
if ( ! $page_id ) {
return false;
}
update_option( $key_option, $page_id );
$lp_settings_cache = new LP_Settings_Cache( true );
$lp_settings_cache->clean_lp_settings();
} catch ( Throwable $e ) {
error_log( __METHOD__ . ': ' . $e->getMessage() );
}
return $page_id;
}
/**
* Get the current url
*
* @return string
* @since 3.2.6.8
* @author tungnx
*/
public static function getUrlCurrent(): string {
$schema = is_ssl() ? 'https://' : 'http://';
$http_host = LP_Helper::sanitize_params_submitted( urldecode( $_SERVER['HTTP_HOST'] ?? '' ) );
$request_uri = LP_Helper::sanitize_params_submitted( urldecode( $_SERVER['REQUEST_URI'] ?? '' ) );
//$http_host = LP_Helper::sanitize_params_submitted( filter_input( INPUT_SERVER, 'HTTP_HOST' ) ?? '' );
//$request_uri = LP_Helper::sanitize_params_submitted( filter_input( INPUT_SERVER, 'REQUEST_URI' ) ?? '' );
return untrailingslashit( $schema . $http_host . $request_uri );
}
/**
* Check request is rest api
*
* @return bool
* @author tungnx
* @since 4.1.6.6
*/
public static function isRestApiLP(): bool {
$restPrefix = '/' . rest_get_url_prefix();
return strpos( self::getUrlCurrent(), $restPrefix . '/lp/' ) || strpos( self::getUrlCurrent(), $restPrefix . '/learnpress/' );
}
/**
* Sanitize string and array
*
* @param array|string $value
* @param string $type_content
*
* @return array|string
* @since 3.2.7.1
* @author tungnx
*/
public static function sanitize_params_submitted( $value, string $type_content = 'text' ) {
$value = wp_unslash( $value );
if ( is_string( $value ) ) {
switch ( $type_content ) {
case 'html':
$value = wp_kses_post( $value );
break;
case 'textarea':
$value = sanitize_textarea_field( $value );
break;
case 'key':
$value = sanitize_key( $value );
break;
case 'int':
$value = (int) $value;
break;
case 'float':
$value = (float) $value;
break;
default:
if ( is_callable( $type_content ) ) {
$value = call_user_func( $type_content, $value );
} else {
$value = sanitize_text_field( $value );
}
}
} elseif ( is_array( $value ) ) {
foreach ( $value as $k => $v ) {
unset( $value[ $k ] );
$value[ sanitize_text_field( $k ) ] = self::sanitize_params_submitted( $v, $type_content );
}
}
return $value;
}
public static function db_format_array( array $arr, string $format = '%d' ): string {
$arr_formatted = array_fill( 0, sizeof( $arr ), $format );
return join( ',', $arr_formatted );
}
/**
* Calculate percent of progress rows on db
*
* @param int $offset .
* @param int $limit .
* @param int $total_row .
*
* @return float
*/
public static function progress_percent( int $offset, int $limit, int $total_row ): float {
if ( $total_row <= 0 ) {
return 0;
}
$percent = ( $offset + $limit ) * 100 / $total_row;
$percent = min( $percent, 100 );
return floatval( number_format( $percent, 2 ) );
}
/**
* Convert array to string
* Ex: array("publish", "pending") to post_status IN(%s, %s)
*
* @param array $arr
*
* @return string
*/
public static function format_query_IN( array $arr ): string {
$format = array_fill( 0, count( $arr ), '%s' );
return join( ',', $format );
}
/**
* Get link lp checkout page
* without cache - because some cache(redis) will cache page with user anonymous
*/
public static function get_link_no_cache( string $link ): string {
return esc_url_raw( add_query_arg( 'no-cache', uniqid(), $link ) );
}
/**
* Check string is json
*
* @param string $str
* @param null $associative
*
* @return mixed
* @throws Exception
* @since 4.1.6.4
* @version 1.0.1
*/
public static function json_decode( string $str, $associative = null ) {
$obj = json_decode( $str, $associative );
if ( json_last_error() !== JSON_ERROR_NONE ) {
throw new Exception( 'JSON decode: ' . json_last_error_msg() );
}
return $obj;
}
/**
* Handle permalink structure for LP
*
* @return string
* @since 4.2.2
* @version 1.0.4
*/
public static function handle_lp_permalink_structure( $post_link, $post ) {
if ( false === strpos( $post_link, '%' ) ) {
return $post_link;
}
$find = [];
$replace = [];
if ( ! empty( $post->post_date_gmt ) ) {
$find = array(
'%year%',
'%monthnum%',
'%day%',
'%hour%',
'%minute%',
'%second%',
'%post_id%',
);
$time = strtotime( $post->post_date_gmt );
$replace = array(
date_i18n( 'Y', $time ),
date_i18n( 'm', $time ),
date_i18n( 'd', $time ),
date_i18n( 'H', $time ),
date_i18n( 'i', $time ),
date_i18n( 's', $time ),
$post->ID,
);
}
if ( strpos( $post_link, '%course_category%' ) && get_post_type( $post ) === LP_COURSE_CPT ) {
// Get the custom taxonomy terms in use by this post
$terms = get_the_terms( $post->ID, 'course_category' );
if ( ! empty( $terms ) ) {
$terms = wp_list_sort( $terms, 'term_id' );
// order by IDF
$category_object = apply_filters(
'learn_press_course_post_type_link_course_category',
$terms[0],
$terms,
$post
);
$category_object = get_term( $category_object, 'course_category' );
if ( ! $category_object instanceof WP_Term ) {
return $post_link;
}
$course_category = $category_object->slug;
$parent = $category_object->parent;
if ( $parent ) {
$ancestors = get_ancestors( $category_object->term_id, 'course_category' );
foreach ( $ancestors as $ancestor ) {
$ancestor_object = get_term( $ancestor, 'course_category' );
if ( $ancestor_object instanceof WP_Term ) {
$course_category = $ancestor_object->slug . '/' . $course_category;
}
}
}
} else {
// If no terms are assigned to this post, use a string instead (can't leave the placeholder there)
$course_category = _x( 'uncategorized', 'slug', 'learnpress' );
}
$find[] = '%course_category%';
$replace[] = urldecode( $course_category );
}
return apply_filters(
'learn-press/single-course/permalink',
str_replace( $find, $replace, $post_link ),
$post
);
}
/**
* Print variable script inline script tag.
* If $name_variable_script is empty,
* the script will be print as json with set $tag_args['type'] = application/json.
*
* @param string $name_variable_script
* @param array $data
* @param array $tag_args as ['type' => 'text/javascript', 'id' => '']
*
* @return void
* @version 1.0.1
* @since 4.2.5.5
*/
public static function print_inline_script_tag( string $name_variable_script, array $data, array $tag_args = [] ) {
foreach ( $data as $key => $value ) {
if ( ! is_scalar( $value ) ) {
continue;
}
$data[ $key ] = html_entity_decode( (string) $value, ENT_QUOTES, 'UTF-8' );
}
$data_json = wp_json_encode( $data );
$script = '';
if ( ! empty( $name_variable_script ) ) {
$script = "var {$name_variable_script} = {$data_json};";
} elseif ( isset( $tag_args['type'] ) && $tag_args['type'] === 'application/json' ) {
$script = $data_json;
}
wp_print_inline_script_tag( $script, $tag_args );
}
/**
* Get translation string single/plural
*
* @param float $number
* @param string $string_value
* @param bool $include_number
*
* @return string
* @since 4.2.7.4
* @version 1.0.0
*/
public static function get_i18n_string_plural( float $number, string $string_value = '', bool $include_number = true ): string {
switch ( $string_value ) {
case LP_COURSE_CPT:
$plural = sprintf(
_n( 'Course', 'Courses', $number, 'learnpress' ),
$number
);
break;
case LP_LESSON_CPT:
$plural = sprintf(
_n( 'Lesson', 'Lessons', $number, 'learnpress' ),
$number
);
break;
case LP_QUIZ_CPT:
$plural = sprintf(
_n( 'Quiz', 'Quizzes', $number, 'learnpress' ),
$number
);
break;
case LP_QUESTION_CPT:
$plural = sprintf(
_n( 'Question', 'Questions', $number, 'learnpress' ),
$number
);
break;
case 'lp_assignment':
$plural = sprintf(
_n( 'Assignment', 'Assignments', $number, 'learnpress' ),
$number
);
break;
case 'lp_h5p':
$plural = sprintf(
_n( 'H5P', 'H5Ps', $number, 'learnpress' ),
$number
);
break;
default:
$plural = $string_value;
break;
}
if ( $include_number ) {
$plural = sprintf( '%s %s', $number, $plural );
}
return apply_filters( 'learn-press/i18n/plural', $plural, $number, $string_value, $include_number );
}
/**
* Get client ip address
*
* @return mixed|string
* @since 4.2.7.9
* @version 1.0.0
*/
public static function get_client_ip(): string {
$ipaddress = 'ip-unknown';
if ( isset( $_SERVER['HTTP_CLIENT_IP'] ) ) {
$ipaddress = $_SERVER['HTTP_CLIENT_IP'];
} elseif ( isset( $_SERVER['HTTP_X_FORWARDED_FOR'] ) ) {
$ipaddress = $_SERVER['HTTP_X_FORWARDED_FOR'];
} elseif ( isset( $_SERVER['HTTP_X_FORWARDED'] ) ) {
$ipaddress = $_SERVER['HTTP_X_FORWARDED'];
} elseif ( isset( $_SERVER['HTTP_FORWARDED_FOR'] ) ) {
$ipaddress = $_SERVER['HTTP_FORWARDED_FOR'];
} elseif ( isset( $_SERVER['HTTP_FORWARDED'] ) ) {
$ipaddress = $_SERVER['HTTP_FORWARDED'];
} elseif ( isset( $_SERVER['REMOTE_ADDR'] ) ) {
$ipaddress = $_SERVER['REMOTE_ADDR'];
}
$ipaddress = (string) $ipaddress;
$ipaddress = 'gip-' . $ipaddress;
return $ipaddress;
}
}