📄 rfc822.php
字号:
// Format could be one of: name <geezer@domain.com>
// geezer@domain.com
// geezer
// ... or any other format valid by RFC 822.
array_walk($addresses, array($this, 'validateMailbox'));
// Nested format
if ($this->nestGroups) {
if ($is_group) {
$structure->addresses = $addresses;
} else {
$structure = $addresses[0];
}
// Flat format
} else {
if ($is_group) {
$structure = array_merge($structure, $addresses);
} else {
$structure = $addresses;
}
}
return $structure;
}
/**
* Function to validate a phrase.
*
* @access private
* @param string $phrase The phrase to check.
* @return boolean Success or failure.
*/
function _validatePhrase($phrase)
{
// Splits on one or more Tab or space.
$parts = preg_split('/[ \\x09]+/', $phrase, -1, PREG_SPLIT_NO_EMPTY);
$phrase_parts = array();
while (count($parts) > 0){
$phrase_parts[] = $this->_splitCheck($parts, ' ');
for ($i = 0; $i < $this->index + 1; $i++)
array_shift($parts);
}
for ($i = 0; $i < count($phrase_parts); $i++) {
// If quoted string:
if (substr($phrase_parts[$i], 0, 1) == '"') {
if (!$this->_validateQuotedString($phrase_parts[$i]))
return false;
continue;
}
// Otherwise it's an atom:
if (!$this->_validateAtom($phrase_parts[$i])) return false;
}
return true;
}
/**
* Function to validate an atom which from rfc822 is:
* atom = 1*<any CHAR except specials, SPACE and CTLs>
*
* If validation ($this->validate) has been turned off, then
* validateAtom() doesn't actually check anything. This is so that you
* can split a list of addresses up before encoding personal names
* (umlauts, etc.), for example.
*
* @access private
* @param string $atom The string to check.
* @return boolean Success or failure.
*/
function _validateAtom($atom)
{
if (!$this->validate) {
// Validation has been turned off; assume the atom is okay.
return true;
}
// Check for any char from ASCII 0 - ASCII 127
if (!preg_match('/^[\\x00-\\x7E]+$/i', $atom, $matches)) {
return false;
}
// Check for specials:
if (preg_match('/[][()<>@,;\\:". ]/', $atom)) {
return false;
}
// Check for control characters (ASCII 0-31):
if (preg_match('/[\\x00-\\x1F]+/', $atom)) {
return false;
}
return true;
}
/**
* Function to validate quoted string, which is:
* quoted-string = <"> *(qtext/quoted-pair) <">
*
* @access private
* @param string $qstring The string to check
* @return boolean Success or failure.
*/
function _validateQuotedString($qstring)
{
// Leading and trailing "
$qstring = substr($qstring, 1, -1);
// Perform check.
return !(preg_match('/(.)[\x0D\\\\"]/', $qstring, $matches) && $matches[1] != '\\');
}
/**
* Function to validate a mailbox, which is:
* mailbox = addr-spec ; simple address
* / phrase route-addr ; name and route-addr
*
* @access public
* @param string &$mailbox The string to check.
* @return boolean Success or failure.
*/
function validateMailbox(&$mailbox)
{
// A couple of defaults.
$phrase = '';
$comment = '';
// Catch any RFC822 comments and store them separately
$_mailbox = $mailbox;
while (strlen(trim($_mailbox)) > 0) {
$parts = explode('(', $_mailbox);
$before_comment = $this->_splitCheck($parts, '(');
if ($before_comment != $_mailbox) {
// First char should be a (
$comment = substr(str_replace($before_comment, '', $_mailbox), 1);
$parts = explode(')', $comment);
$comment = $this->_splitCheck($parts, ')');
$comments[] = $comment;
// +1 is for the trailing )
$_mailbox = substr($_mailbox, strpos($_mailbox, $comment)+strlen($comment)+1);
} else {
break;
}
}
for($i=0; $i<count(@$comments); $i++){
$mailbox = str_replace('('.$comments[$i].')', '', $mailbox);
}
$mailbox = trim($mailbox);
// Check for name + route-addr
if (substr($mailbox, -1) == '>' && substr($mailbox, 0, 1) != '<') {
$parts = explode('<', $mailbox);
$name = $this->_splitCheck($parts, '<');
$phrase = trim($name);
$route_addr = trim(substr($mailbox, strlen($name.'<'), -1));
if ($this->_validatePhrase($phrase) === false || ($route_addr = $this->_validateRouteAddr($route_addr)) === false)
return false;
// Only got addr-spec
} else {
// First snip angle brackets if present.
if (substr($mailbox,0,1) == '<' && substr($mailbox,-1) == '>')
$addr_spec = substr($mailbox,1,-1);
else
$addr_spec = $mailbox;
if (($addr_spec = $this->_validateAddrSpec($addr_spec)) === false)
return false;
}
// Construct the object that will be returned.
$mbox = new stdClass();
// Add the phrase (even if empty) and comments
$mbox->personal = $phrase;
$mbox->comment = isset($comments) ? $comments : array();
if (isset($route_addr)) {
$mbox->mailbox = $route_addr['local_part'];
$mbox->host = $route_addr['domain'];
$route_addr['adl'] !== '' ? $mbox->adl = $route_addr['adl'] : '';
} else {
$mbox->mailbox = $addr_spec['local_part'];
$mbox->host = $addr_spec['domain'];
}
$mailbox = $mbox;
return true;
}
/**
* This function validates a route-addr which is:
* route-addr = "<" [route] addr-spec ">"
*
* Angle brackets have already been removed at the point of
* getting to this function.
*
* @access private
* @param string $route_addr The string to check.
* @return mixed False on failure, or an array containing validated address/route information on success.
*/
function _validateRouteAddr($route_addr)
{
// Check for colon.
if (strpos($route_addr, ':') !== false) {
$parts = explode(':', $route_addr);
$route = $this->_splitCheck($parts, ':');
} else {
$route = $route_addr;
}
// If $route is same as $route_addr then the colon was in
// quotes or brackets or, of course, non existent.
if ($route === $route_addr){
unset($route);
$addr_spec = $route_addr;
if (($addr_spec = $this->_validateAddrSpec($addr_spec)) === false) {
return false;
}
} else {
// Validate route part.
if (($route = $this->_validateRoute($route)) === false) {
return false;
}
$addr_spec = substr($route_addr, strlen($route . ':'));
// Validate addr-spec part.
if (($addr_spec = $this->_validateAddrSpec($addr_spec)) === false) {
return false;
}
}
if (isset($route)) {
$return['adl'] = $route;
} else {
$return['adl'] = '';
}
$return = array_merge($return, $addr_spec);
return $return;
}
/**
* Function to validate a route, which is:
* route = 1#("@" domain) ":"
*
* @access private
* @param string $route The string to check.
* @return mixed False on failure, or the validated $route on success.
*/
function _validateRoute($route)
{
// Split on comma.
$domains = explode(',', trim($route));
for ($i = 0; $i < count($domains); $i++) {
$domains[$i] = str_replace('@', '', trim($domains[$i]));
if (!$this->_validateDomain($domains[$i])) return false;
}
return $route;
}
/**
* Function to validate a domain, though this is not quite what
* you expect of a strict internet domain.
*
* domain = sub-domain *("." sub-domain)
*
* @access private
* @param string $domain The string to check.
* @return mixed False on failure, or the validated domain on success.
*/
function _validateDomain($domain)
{
// Note the different use of $subdomains and $sub_domains
$subdomains = explode('.', $domain);
while (count($subdomains) > 0) {
$sub_domains[] = $this->_splitCheck($subdomains, '.');
for ($i = 0; $i < $this->index + 1; $i++)
array_shift($subdomains);
}
for ($i = 0; $i < count($sub_domains); $i++) {
if (!$this->_validateSubdomain(trim($sub_domains[$i])))
return false;
}
// Managed to get here, so return input.
return $domain;
}
/**
* Function to validate a subdomain:
* subdomain = domain-ref / domain-literal
*
* @access private
* @param string $subdomain The string to check.
* @return boolean Success or failure.
*/
function _validateSubdomain($subdomain)
{
if (preg_match('|^\[(.*)]$|', $subdomain, $arr)){
if (!$this->_validateDliteral($arr[1])) return false;
} else {
if (!$this->_validateAtom($subdomain)) return false;
}
// Got here, so return successful.
return true;
}
/**
* Function to validate a domain literal:
* domain-literal = "[" *(dtext / quoted-pair) "]"
*
* @access private
* @param string $dliteral The string to check.
* @return boolean Success or failure.
*/
function _validateDliteral($dliteral)
{
return !preg_match('/(.)[][\x0D\\\\]/', $dliteral, $matches) && $matches[1] != '\\';
}
/**
* Function to validate an addr-spec.
*
* addr-spec = local-part "@" domain
*
* @access private
* @param string $addr_spec The string to check.
* @return mixed False on failure, or the validated addr-spec on success.
*/
function _validateAddrSpec($addr_spec)
{
$addr_spec = trim($addr_spec);
// Split on @ sign if there is one.
if (strpos($addr_spec, '@') !== false) {
$parts = explode('@', $addr_spec);
$local_part = $this->_splitCheck($parts, '@');
$domain = substr($addr_spec, strlen($local_part . '@'));
// No @ sign so assume the default domain.
} else {
$local_part = $addr_spec;
$domain = $this->default_domain;
}
if (($local_part = $this->_validateLocalPart($local_part)) === false) return false;
if (($domain = $this->_validateDomain($domain)) === false) return false;
// Got here so return successful.
return array('local_part' => $local_part, 'domain' => $domain);
}
/**
* Function to validate the local part of an address:
* local-part = word *("." word)
*
* @access private
* @param string $local_part
* @return mixed False on failure, or the validated local part on success.
*/
function _validateLocalPart($local_part)
{
$parts = explode('.', $local_part);
// Split the local_part into words.
while (count($parts) > 0){
$words[] = $this->_splitCheck($parts, '.');
for ($i = 0; $i < $this->index + 1; $i++) {
array_shift($parts);
}
}
// Validate each word.
for ($i = 0; $i < count($words); $i++) {
if ($this->_validatePhrase(trim($words[$i])) === false) return false;
}
// Managed to get here, so return the input.
return $local_part;
}
/**
* Returns an approximate count of how many addresses are
* in the given string. This is APPROXIMATE as it only splits
* based on a comma which has no preceding backslash. Could be
* useful as large amounts of addresses will end up producing
* *large* structures when used with parseAddressList().
*
* @param string $data Addresses to count
* @return int Approximate count
*/
function approximateCount($data)
{
return count(preg_split('/(?<!\\\\),/', $data));
}
/**
* This is a email validating function seperate to the rest
* of the class. It simply validates whether an email is of
* the common internet form: <user>@<domain>. This can be
* sufficient for most people. Optional stricter mode can
* be utilised which restricts mailbox characters allowed
* to alphanumeric, full stop, hyphen and underscore.
*
* @param string $data Address to check
* @param boolean $strict Optional stricter mode
* @return mixed False if it fails, an indexed array
* username/domain if it matches
*/
function isValidInetAddress($data, $strict = false)
{
$regex = $strict ? '/^([.0-9a-z_-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,4})$/i' : '/^([*+!.&#$|\'\\%\/0-9a-z^_`{}=?~:-]+)@(([0-9a-z-]+\.)+[0-9a-z]{2,4})$/i';
if (preg_match($regex, trim($data), $matches)) {
return array($matches[1], $matches[2]);
} else {
return false;
}
}
}
?>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -