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<?php
/* Source: https://github.com/moodle/moodle/blob/MOODLE_310_STABLE/lib/validateurlsyntax.php under GNU/GPL license */
/**
* BEGINNING OF validateUrlSyntax() function.
*/
function validateUrlSyntax($urladdr, $options = "")
{
// Force Options parameter to be lower case
// DISABLED PERMAMENTLY - OK to remove from code
// $options = strtolower($options);
// Check Options Parameter
if (!preg_match('/^([sHSEFRuPaIpfqr][+?-])*$/', $options)) {
trigger_error("Options attribute malformed", E_USER_ERROR);
}
// Set Options Array, set defaults if options are not specified
// Scheme
if (strpos($options, 's') === false) {
$aOptions['s'] = '?';
} else {
$aOptions['s'] = substr($options, strpos($options, 's') + 1, 1);
}
// http://
if (strpos($options, 'H') === false) {
$aOptions['H'] = '?';
} else {
$aOptions['H'] = substr($options, strpos($options, 'H') + 1, 1);
}
// https:// (SSL)
if (strpos($options, 'S') === false) {
$aOptions['S'] = '?';
} else {
$aOptions['S'] = substr($options, strpos($options, 'S') + 1, 1);
}
// mailto: (email)
if (strpos($options, 'E') === false) {
$aOptions['E'] = '-';
} else {
$aOptions['E'] = substr($options, strpos($options, 'E') + 1, 1);
}
// ftp://
if (strpos($options, 'F') === false) {
$aOptions['F'] = '-';
} else {
$aOptions['F'] = substr($options, strpos($options, 'F') + 1, 1);
}
// rtmp://
if (strpos($options, 'R') === false) {
$aOptions['R'] = '-';
} else {
$aOptions['R'] = substr($options, strpos($options, 'R') + 1, 1);
}
// User section
if (strpos($options, 'u') === false) {
$aOptions['u'] = '?';
} else {
$aOptions['u'] = substr($options, strpos($options, 'u') + 1, 1);
}
// Password in user section
if (strpos($options, 'P') === false) {
$aOptions['P'] = '?';
} else {
$aOptions['P'] = substr($options, strpos($options, 'P') + 1, 1);
}
// Address Section
if (strpos($options, 'a') === false) {
$aOptions['a'] = '+';
} else {
$aOptions['a'] = substr($options, strpos($options, 'a') + 1, 1);
}
// IP Address in address section
if (strpos($options, 'I') === false) {
$aOptions['I'] = '?';
} else {
$aOptions['I'] = substr($options, strpos($options, 'I') + 1, 1);
}
// Port number
if (strpos($options, 'p') === false) {
$aOptions['p'] = '?';
} else {
$aOptions['p'] = substr($options, strpos($options, 'p') + 1, 1);
}
// File Path
if (strpos($options, 'f') === false) {
$aOptions['f'] = '?';
} else {
$aOptions['f'] = substr($options, strpos($options, 'f') + 1, 1);
}
// Query Section
if (strpos($options, 'q') === false) {
$aOptions['q'] = '?';
} else {
$aOptions['q'] = substr($options, strpos($options, 'q') + 1, 1);
}
// Fragment (Anchor)
if (strpos($options, 'r') === false) {
$aOptions['r'] = '?';
} else {
$aOptions['r'] = substr($options, strpos($options, 'r') + 1, 1);
}
// Loop through options array, to search for and replace "-" to "{0}" and "+" to ""
foreach ($aOptions as $key => $value) {
if ($value == '-') {
$aOptions[$key] = '{0}';
}
if ($value == '+') {
$aOptions[$key] = '';
}
}
// DEBUGGING - Unescape following line to display to screen current option values
// echo '<pre>'; print_r($aOptions); echo '</pre>';
// Preset Allowed Characters
$alphanum = '[a-zA-Z0-9]'; // Alpha Numeric
$unreserved = '[a-zA-Z0-9_.!~*'.'\''.'()-]';
$escaped = '(%[0-9a-fA-F]{2})'; // Escape sequence - In Hex - %6d would be a 'm'
$reserved = '[;/?:@&=+$,]'; // Special characters in the URI
// Beginning Regular Expression
// Scheme - Allows for 'http://', 'https://', 'mailto:', 'ftp://' or 'rtmp://'
$scheme = '(';
if ($aOptions['H'] === '') {
$scheme .= 'http://';
} elseif ($aOptions['S'] === '') {
$scheme .= 'https://';
} elseif ($aOptions['E'] === '') {
$scheme .= 'mailto:';
} elseif ($aOptions['F'] === '') {
$scheme .= 'ftp://';
} elseif ($aOptions['R'] === '') {
$scheme .= 'rtmp://';
} else {
if ($aOptions['H'] === '?') {
$scheme .= '|(http://)';
}
if ($aOptions['S'] === '?') {
$scheme .= '|(https://)';
}
if ($aOptions['E'] === '?') {
$scheme .= '|(mailto:)';
}
if ($aOptions['F'] === '?') {
$scheme .= '|(ftp://)';
}
if ($aOptions['R'] === '?') {
$scheme .= '|(rtmp://)';
}
$scheme = str_replace('(|', '(', $scheme); // fix first pipe
}
$scheme .= ')'.$aOptions['s'];
// End setting scheme
// User Info - Allows for 'username@' or 'username:password@'. Note: contrary to rfc, I removed ':' from username section, allowing it only in password.
// /---------------- Username -----------------------\ /-------------------------------- Password ------------------------------\
$userinfo = '(('.$unreserved.'|'.$escaped.'|[;&=+$,]'.')+(:('.$unreserved.'|'.$escaped.'|[;:&=+$,]'.')+)'.$aOptions['P'].'@)'.$aOptions['u'];
// IP ADDRESS - Allows 0.0.0.0 to 255.255.255.255
$ipaddress = '((((2(([0-4][0-9])|(5[0-5])))|([01]?[0-9]?[0-9]))\.){3}((2(([0-4][0-9])|(5[0-5])))|([01]?[0-9]?[0-9])))';
// Tertiary Domain(s) - Optional - Multi - Although some sites may use other characters, the RFC says tertiary domains have the same naming restrictions as second level domains
$domain_tertiary = '('.$alphanum.'(([a-zA-Z0-9-]{0,62})'.$alphanum.')?\.)*';
$domain_toplevel = '([a-zA-Z](([a-zA-Z0-9-]*)[a-zA-Z0-9])?)';
if ($aOptions['I'] === '{0}') { // IP Address Not Allowed
$address = '('.$domain_tertiary. /* MDL-9295 $domain_secondary . */ $domain_toplevel.')';
} elseif ($aOptions['I'] === '') { // IP Address Required
$address = '('.$ipaddress.')';
} else { // IP Address Optional
$address = '(('.$ipaddress.')|('.$domain_tertiary. /* MDL-9295 $domain_secondary . */ $domain_toplevel.'))';
}
$address = $address.$aOptions['a'];
// Port Number - :80 or :8080 or :65534 Allows range of :0 to :65535
// (0-59999) |(60000-64999) |(65000-65499) |(65500-65529) |(65530-65535)
$port_number = '(:(([0-5]?[0-9]{1,4})|(6[0-4][0-9]{3})|(65[0-4][0-9]{2})|(655[0-2][0-9])|(6553[0-5])))'.$aOptions['p'];
// Path - Can be as simple as '/' or have multiple folders and filenames
$path = '(/((;)?('.$unreserved.'|'.$escaped.'|'.'[:@&=+$,]'.')+(/)?)*)'.$aOptions['f'];
// Query Section - Accepts ?var1=value1&var2=value2 or ?2393,1221 and much more
$querystring = '(\?('.$reserved.'|'.$unreserved.'|'.$escaped.')*)'.$aOptions['q'];
// Fragment Section - Accepts anchors such as #top
$fragment = '(\#('.$reserved.'|'.$unreserved.'|'.$escaped.')*)'.$aOptions['r'];
// Building Regular Expression
$regexp = '#^'.$scheme.$userinfo.$address.$port_number.$path.$querystring.$fragment.'$#i';
// DEBUGGING - Uncomment Line Below To Display The Regular Expression Built
// echo '<pre>' . htmlentities(wordwrap($regexp,70,"\n",1)) . '</pre>';
// Running the regular expression
if (preg_match($regexp, $urladdr)) {
return true; // The domain passed
} else {
return false; // The domain didn't pass the expression
}
} // END Function validateUrlSyntax()
/**
* About ValidateEmailSyntax():
* This function uses the ValidateUrlSyntax() function to easily check the
* syntax of an email address. It accepts the same options as ValidateURLSyntax
* but defaults them for email addresses.
*
* Released under same license as validateUrlSyntax()
*/
function validateEmailSyntax($emailaddr, $options = "")
{
// Check Options Parameter
if (!preg_match('/^([sHSEFuPaIpfqr][+?-])*$/', $options)) {
trigger_error("Options attribute malformed", E_USER_ERROR);
}
// Set Options Array, set defaults if options are not specified
// Scheme
if (strpos($options, 's') === false) {
$aOptions['s'] = '-';
} else {
$aOptions['s'] = substr($options, strpos($options, 's') + 1, 1);
}
// http://
if (strpos($options, 'H') === false) {
$aOptions['H'] = '-';
} else {
$aOptions['H'] = substr($options, strpos($options, 'H') + 1, 1);
}
// https:// (SSL)
if (strpos($options, 'S') === false) {
$aOptions['S'] = '-';
} else {
$aOptions['S'] = substr($options, strpos($options, 'S') + 1, 1);
}
// mailto: (email)
if (strpos($options, 'E') === false) {
$aOptions['E'] = '?';
} else {
$aOptions['E'] = substr($options, strpos($options, 'E') + 1, 1);
}
// ftp://
if (strpos($options, 'F') === false) {
$aOptions['F'] = '-';
} else {
$aOptions['F'] = substr($options, strpos($options, 'F') + 1, 1);
}
// User section
if (strpos($options, 'u') === false) {
$aOptions['u'] = '+';
} else {
$aOptions['u'] = substr($options, strpos($options, 'u') + 1, 1);
}
// Password in user section
if (strpos($options, 'P') === false) {
$aOptions['P'] = '-';
} else {
$aOptions['P'] = substr($options, strpos($options, 'P') + 1, 1);
}
// Address Section
if (strpos($options, 'a') === false) {
$aOptions['a'] = '+';
} else {
$aOptions['a'] = substr($options, strpos($options, 'a') + 1, 1);
}
// IP Address in address section
if (strpos($options, 'I') === false) {
$aOptions['I'] = '-';
} else {
$aOptions['I'] = substr($options, strpos($options, 'I') + 1, 1);
}
// Port number
if (strpos($options, 'p') === false) {
$aOptions['p'] = '-';
} else {
$aOptions['p'] = substr($options, strpos($options, 'p') + 1, 1);
}
// File Path
if (strpos($options, 'f') === false) {
$aOptions['f'] = '-';
} else {
$aOptions['f'] = substr($options, strpos($options, 'f') + 1, 1);
}
// Query Section
if (strpos($options, 'q') === false) {
$aOptions['q'] = '-';
} else {
$aOptions['q'] = substr($options, strpos($options, 'q') + 1, 1);
}
// Fragment (Anchor)
if (strpos($options, 'r') === false) {
$aOptions['r'] = '-';
} else {
$aOptions['r'] = substr($options, strpos($options, 'r') + 1, 1);
}
// Generate options
$newoptions = '';
foreach ($aOptions as $key => $value) {
$newoptions .= $key.$value;
}
// DEBUGGING - Uncomment line below to display generated options
// echo '<pre>' . $newoptions . '</pre>';
// Send to validateUrlSyntax() and return result
return validateUrlSyntax($emailaddr, $newoptions);
} // END Function validateEmailSyntax()
/**
* About ValidateFtpSyntax():
* This function uses the ValidateUrlSyntax() function to easily check the
* syntax of an FTP address. It accepts the same options as ValidateURLSyntax
* but defaults them for FTP addresses.
*
* Usage:
* <code>
* validateFtpSyntax( url_to_check[, options])
* </code>
* url_to_check - string - The url to check
*
* options - string - A optional string of options to set which parts of
* the url are required, optional, or not allowed. Each option
* must be followed by a "+" for required, "?" for optional, or
* "-" for not allowed. See ValidateUrlSyntax() docs for option list.
*
* The default options are changed to:
* s?H-S-E-F+u?P?a+I?p?f?q-r-
*
* Examples:
* <code>
* validateFtpSyntax('ftp://netscape.com')
* validateFtpSyntax('moz:iesucks@netscape.com')
* validateFtpSyntax('ftp://netscape.com:2121/browsers/ns7/', 'u-')
* </code>
*
* Author(s):
* Rod Apeldoorn - rod(at)canowhoopass(dot)com
*
*
* Homepage:
* http://www.canowhoopass.com/
*
*
* License:
* Copyright 2004 - Rod Apeldoorn
*
* Released under same license as validateUrlSyntax(). For details, contact me.
*/
function validateFtpSyntax($ftpaddr, $options = "")
{
// Check Options Parameter
if (!preg_match('/^([sHSEFuPaIpfqr][+?-])*$/', $options)) {
trigger_error("Options attribute malformed", E_USER_ERROR);
}
// Set Options Array, set defaults if options are not specified
// Scheme
if (strpos($options, 's') === false) {
$aOptions['s'] = '?';
} else {
$aOptions['s'] = substr($options, strpos($options, 's') + 1, 1);
}
// http://
if (strpos($options, 'H') === false) {
$aOptions['H'] = '-';
} else {
$aOptions['H'] = substr($options, strpos($options, 'H') + 1, 1);
}
// https:// (SSL)
if (strpos($options, 'S') === false) {
$aOptions['S'] = '-';
} else {
$aOptions['S'] = substr($options, strpos($options, 'S') + 1, 1);
}
// mailto: (email)
if (strpos($options, 'E') === false) {
$aOptions['E'] = '-';
} else {
$aOptions['E'] = substr($options, strpos($options, 'E') + 1, 1);
}
// ftp://
if (strpos($options, 'F') === false) {
$aOptions['F'] = '+';
} else {
$aOptions['F'] = substr($options, strpos($options, 'F') + 1, 1);
}
// User section
if (strpos($options, 'u') === false) {
$aOptions['u'] = '?';
} else {
$aOptions['u'] = substr($options, strpos($options, 'u') + 1, 1);
}
// Password in user section
if (strpos($options, 'P') === false) {
$aOptions['P'] = '?';
} else {
$aOptions['P'] = substr($options, strpos($options, 'P') + 1, 1);
}
// Address Section
if (strpos($options, 'a') === false) {
$aOptions['a'] = '+';
} else {
$aOptions['a'] = substr($options, strpos($options, 'a') + 1, 1);
}
// IP Address in address section
if (strpos($options, 'I') === false) {
$aOptions['I'] = '?';
} else {
$aOptions['I'] = substr($options, strpos($options, 'I') + 1, 1);
}
// Port number
if (strpos($options, 'p') === false) {
$aOptions['p'] = '?';
} else {
$aOptions['p'] = substr($options, strpos($options, 'p') + 1, 1);
}
// File Path
if (strpos($options, 'f') === false) {
$aOptions['f'] = '?';
} else {
$aOptions['f'] = substr($options, strpos($options, 'f') + 1, 1);
}
// Query Section
if (strpos($options, 'q') === false) {
$aOptions['q'] = '-';
} else {
$aOptions['q'] = substr($options, strpos($options, 'q') + 1, 1);
}
// Fragment (Anchor)
if (strpos($options, 'r') === false) {
$aOptions['r'] = '-';
} else {
$aOptions['r'] = substr($options, strpos($options, 'r') + 1, 1);
}
// Generate options
$newoptions = '';
foreach ($aOptions as $key => $value) {
$newoptions .= $key.$value;
}
// Send to validateUrlSyntax() and return result
return validateUrlSyntax($ftpaddr, $newoptions);
} // END Function validateFtpSyntax()
Zerion Mini Shell 1.0