File "class-joinchat-util.php"
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<?php
/**
* Utility class.
*
* @package Joinchat
*/
/**
* Utility class.
*
* Include static methods.
*
* @since 3.1.0
* @since 5.0.0 Renamed from JoinchatUtil.
* @package Joinchat
* @subpackage Joinchat/includes
* @author Creame <[email protected]>
*/
class Joinchat_Util {
/**
* Encode emojis if utf8mb4 not supported by DB
*
* @since 4.3.0
* @access public
* @return void
*/
public static function maybe_encode_emoji() {
global $wpdb;
if ( 'utf8mb4' !== $wpdb->get_col_charset( $wpdb->options, 'option_value' ) && ! has_filter( 'sanitize_text_field', 'wp_encode_emoji' ) ) {
add_filter( 'sanitize_text_field', 'wp_encode_emoji' );
}
}
/**
* Clean user input fields
*
* @since 3.1.0
* @access public
* @param mixed $value to clean.
* @return mixed $value cleaned
*/
public static function clean_input( $value ) {
if ( is_array( $value ) ) {
return array_map( self::class . '::clean_input', $value );
} elseif ( is_string( $value ) ) {
$value = self::clean_nl( wp_unslash( $value ) );
// Split lines, clean and re-join lines.
return implode( "\n", array_map( 'sanitize_text_field', explode( "\n", trim( $value ) ) ) );
} else {
return $value;
}
}
/**
* Clean new line format
*
* @since 5.0.12
* @param string $value string to clean.
* @return string string with "\n" new lines.
*/
public static function clean_nl( $value ) {
return str_replace( array( "\r\n", "\r" ), array( "\n", "\n" ), $value );
}
/**
* Check if value is set and is 'yes'
*
* @since 5.0.12
* @param string $values array of values.
* @param string $key value key to check.
* @return string 'yes' or 'no'
*/
public static function yes_no( $values, $key ) {
return isset( $values[ $key ] ) && 'yes' === $values[ $key ] ? 'yes' : 'no';
}
/**
* Clean WhatsApp number
*
* View (https://faq.whatsapp.com/general/contacts/how-to-add-an-international-phone-number)
*
* @since 4.3.0
* @access public
* @param string $number phone number to clean.
* @return string number cleaned
*/
public static function clean_whatsapp( $number ) {
$number = is_string( $number ) ? $number : '';
// Remove any leading 0s or special calling codes.
$clean = preg_replace( '/^0+|\D/', '', $number );
// Argentina (country code "54") should have a "9" between the country code and area code
// and prefix "15" must be removed so the final number will have 13 digits total.
// (intlTelInput saved numbers already has in international mode).
$clean = preg_replace( '/^54(0|1|2|3|4|5|6|7|8)/', '549$1', $clean );
$clean = preg_replace( '/^(54\d{5})15(\d{6})/', '$1$2', $clean );
// Mexico (country code "52") need to have "1" after "+52".
$clean = preg_replace( '/^52(0|2|3|4|5|6|7|8|9)/', '521$1', $clean );
return apply_filters( 'joinchat_clean_whatsapp', $clean, $number );
}
/**
* Apply mb_substr() if available or fallback to substr()
*
* @since 3.1.0
* @access public
* @param string $str The input string.
* @param int $start The first position used in str.
* @param int $length The maximum length of the returned string.
* @return string The portion of str specified by the start and length parameters
*/
public static function substr( $str, $start, $length = null ) {
return function_exists( 'mb_substr' ) ? mb_substr( $str, $start, $length ) : substr( $str, $start, $length );
}
/**
* Return thumbnail url and size.
*
* Create thumbnail of size if not exists and return url an size info.
*
* @since 3.1.0
* @access public
* @param mixed $img Image path or attachment ID.
* @param int $width The widht of thumbnail.
* @param int $height The height of thumbnail.
* @param bool $crop If crop to exact thumbnail size or not.
* @return array With thumbnail info (url, width, height)
*/
public static function thumb( $img, $width, $height, $crop = true ) {
$img_path = intval( $img ) > 0 ? get_attached_file( $img ) : $img;
// Try fallback if file don't exists (filter to true to skip thumbnail generation).
if ( apply_filters( 'joinchat_disable_thumbs', ! $img_path || ! file_exists( $img_path ) ) ) {
$src = wp_get_attachment_image_src( $img, array( $width, $height ) );
if ( is_array( $src ) ) {
return array(
'url' => $src[0],
'width' => $src[1],
'height' => $src[2],
);
}
return false;
}
$uploads = wp_upload_dir( null, false );
$img_info = pathinfo( $img_path );
$new_path = "{$img_info['dirname']}/{$img_info['filename']}-{$width}x{$height}.{$img_info['extension']}";
if ( ! file_exists( $new_path ) ) {
$new_img = wp_get_image_editor( $img_path );
if ( ! is_wp_error( $new_img ) ) {
$new_img->resize( $width, $height, $crop );
$new_img = $new_img->save( $new_path );
$thumb = array(
'url' => str_replace( $uploads['basedir'], $uploads['baseurl'], $new_path ),
'width' => $new_img['width'],
'height' => $new_img['height'],
);
} else {
// Fallback to original image.
@list($w, $h) = getimagesize( $img_path );
$thumb = array(
'url' => str_replace( $uploads['basedir'], $uploads['baseurl'], $img_path ),
'width' => $w,
'height' => $h,
);
}
} else {
@list($w, $h) = getimagesize( $new_path );
$thumb = array(
'url' => str_replace( $uploads['basedir'], $uploads['baseurl'], $new_path ),
'width' => $w,
'height' => $h,
);
}
return $thumb;
}
/**
* Return if image is animated gif.
*
* @since 3.1.0
* @access public
* @param mixed $img Image path or attachment ID.
* @return bool true if is an animated gif, false otherwise
*/
public static function is_animated_gif( $img ) {
$img_path = intval( $img ) > 0 ? get_attached_file( $img ) : $img;
return $img_path && file_exists( $img_path ) ? (bool) preg_match( '#(\x00\x21\xF9\x04.{4}\x00\x2C.*){2,}#s', file_get_contents( $img_path ) ) : false; // phpcs:ignore WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents
}
/**
* Format raw message text for html output.
* Also apply styles transformations like WhatsApp app.
*
* @since 3.1.0
* @since 3.1.2 Allowed callback replecements
* @param string $string string to apply format replacements.
* @return string string formated
*/
public static function formated_message( $string ) {
$replacements = apply_filters(
'joinchat_format_replacements',
array(
'/(^|\W)_(.+?)_(\W|$)/u' => '$1<em>$2</em>$3',
'/(^|\W)\*(.+?)\*(\W|$)/u' => '$1<strong>$2</strong>$3',
'/(^|\W)~(.+?)~(\W|$)/u' => '$1<del>$2</del>$3',
)
);
// Split text into lines and apply replacements line by line.
$lines = explode( "\n", self::clean_nl( $string ) );
foreach ( $lines as $key => $line ) {
$escaped_line = esc_html( $line );
foreach ( $replacements as $pattern => $replacement ) {
if ( is_callable( $replacement ) ) {
$escaped_line = preg_replace_callback( $pattern, $replacement, $escaped_line );
} else {
$escaped_line = preg_replace( $pattern, $replacement, $escaped_line );
}
}
$lines[ $key ] = $escaped_line;
}
return self::replace_variables( implode( '<br>', $lines ) );
}
/**
* Format message send, replace vars.
*
* @since 3.1.0
* @param string $string string to apply variable replacements.
* @return string string with replaced variables
*/
public static function replace_variables( $string ) {
// If empty or don't has vars return early.
if ( empty( $string ) || false === strpos( $string, '{' ) ) {
return $string;
}
global $wp;
$replacements = apply_filters(
'joinchat_variable_replacements',
array(
'SITE' => get_bloginfo( 'name' ),
'URL' => home_url( $wp->request ),
'HREF' => home_url( add_query_arg( null, null ) ),
'TITLE' => self::get_title(),
)
);
// Patterns as regex {VAR}.
$patterns = array();
foreach ( $replacements as $var => $replacement ) {
$patterns[] = "/\{$var\}/u";
}
// Prevent malformed json.
foreach ( $replacements as $var => $replacement ) {
$replacements[ $var ] = str_replace( '"', '"', $replacement );
}
return preg_replace( $patterns, $replacements, $string );
}
/**
* Get current page title
*
* @since 3.1.0
* @return string message formated string
*/
public static function get_title() {
$filter = function ( $parts ) {
return empty( $parts['title'] ) ? $parts : array( 'title' => $parts['title'] );
};
add_filter( 'pre_get_document_title', '__return_empty_string', 100 ); // "Disable" third party bypass.
add_filter( 'document_title_parts', $filter, 100 ); // Filter only 'title' part.
$title = wp_get_document_title();
remove_filter( 'pre_get_document_title', '__return_empty_string', 100 ); // "Re-enable" third party bypass.
remove_filter( 'document_title_parts', $filter, 100 ); // Remove our filter.
return apply_filters( 'joinchat_get_title', $title );
}
/**
* Encode JSON with filtered options
*
* @since 4.0.9
* @param array $data data to encode.
* @return string data json encoded
*/
public static function to_json( $data ) {
$json_options = defined( 'JSON_UNESCAPED_UNICODE' ) ?
JSON_HEX_APOS | JSON_HEX_QUOT | JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES :
JSON_HEX_APOS | JSON_HEX_QUOT;
return wp_json_encode( $data, apply_filters( 'joinchat_json_options', $json_options ) );
}
/**
* Return required capability to change settings
*
* Default capability 'manage_options'
*
* @since 4.2.0
* @param string $capability required capability.
* @return string
*/
public static function capability( $capability = '' ) {
return apply_filters( 'joinchat_capability', $capability ?: 'manage_options' ); //phpcs:ignore WordPress.PHP.DisallowShortTernary
}
/**
* Plugin admin page is in options submenu
*
* @since 4.2.0
* @since 4.4.0 return false by default
* @return bool
*/
public static function options_submenu() {
return 'manage_options' === self::capability() && apply_filters( 'joinchat_submenu', false );
}
/**
* Plugin admin page url
*
* @since 4.2.0
* @since 5.0.0 added $page param.
* @param string $page page slug.
* @return string
*/
public static function admin_url( $page = JOINCHAT_SLUG ) {
return add_query_arg( 'page', $page, admin_url( self::options_submenu() ? 'options-general.php' : 'admin.php' ) );
}
/**
* Can use Gutenberg
*
* Require at least WordPress 5.9
*
* @since 4.5.2
* @return bool
*/
public static function can_gutenberg() {
return function_exists( 'register_block_type' ) && version_compare( get_bloginfo( 'version' ), '5.9', '>=' );
}
/**
* Is Joinchat admin screen
*
* @since 5.0.0
* @return bool
*/
public static function is_admin_screen() {
$current_screen = get_current_screen();
return null !== $current_screen && false !== strpos( $current_screen->id, '_joinchat' );
}
/**
* Return link to https://join.chat with utm
*
* @since 5.0.0
* @param string $path URL path after join.chat/lang/.
* @param string $utm_source utm_source param.
* @return string
*/
public static function link( $path = '', $utm_source = '' ) {
$lang = false !== strpos( strtolower( get_user_locale() ), 'es' ) ? 'es' : 'en';
$path = empty( $path ) ? '' : trim( $path, '/' ) . '/';
$args = array(
'utm_source' => $utm_source,
'utm_medium' => 'wpadmin',
'utm_campaign' => 'v' . str_replace( '.', '_', JOINCHAT_VERSION ),
);
return add_query_arg( $args, "https://join.chat/$lang/$path" );
}
/**
* Simple CSS minifier
*
* View (https://gist.github.com/MeanEYE/36d4abe94ea99014284628a50f5a6d9b).
*
* @since 5.0.11
* @param string $css CSS string.
* @return string minified CSS string.
*/
public static function min_css( $css ) {
if ( ! defined( 'SCRIPT_DEBUG' ) || ! SCRIPT_DEBUG ) {
$rules = array(
'/\/\*.*?(?=\*\/)\*\//imus' => '',
'/([^\d])-?(0+)(px|pt|rem|em|vw|vh|vmax|vmin|cm|mm|m\%)/imus' => '\1\2',
'/\s*([>~:;,\[\]\{\}])\s*/imus' => '\1',
'/\s*([\(\)])\s*([^+-\/\*\^])/imus' => '\1\2',
'/([\+])\s*([^\d])/imus' => '\1\2',
'/#([\dabcdef])\1([\dabcdef])\2([\dabcdef])\3/imus' => '#\1\2\3',
'/;\}/imus' => '}',
);
$css = preg_replace( array_keys( $rules ), $rules, $css );
}
return $css;
}
}