Viewing file:  DomainPart.php (11.24 KB) -rwxrwxr-x
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<?php
namespace Egulias\EmailValidator\Parser;
use Egulias\EmailValidator\EmailLexer;
use Egulias\EmailValidator\EmailValidator;
class DomainPart extends Parser
{
const DOMAIN_MAX_LENGTH = 254;
protected $domainPart = '';
public function parse($domainPart)
{
$this->lexer->moveNext();
if ($this->lexer->token['type'] === EmailLexer::S_DOT) {
throw new \InvalidArgumentException('ERR_DOT_START');
}
if ($this->lexer->token['type'] === EmailLexer::S_EMPTY) {
throw new \InvalidArgumentException('ERR_NODOMAIN');
}
if ($this->lexer->token['type'] === EmailLexer::S_HYPHEN) {
throw new \InvalidArgumentException('ERR_DOMAINHYPHENEND');
}
if ($this->lexer->token['type'] === EmailLexer::S_OPENPARENTHESIS) {
$this->warnings[] = EmailValidator::DEPREC_COMMENT;
$this->parseDomainComments();
}
$domain = $this->doParseDomainPart();
$prev = $this->lexer->getPrevious();
$length = strlen($domain);
if ($prev['type'] === EmailLexer::S_DOT) {
throw new \InvalidArgumentException('ERR_DOT_END');
}
if ($prev['type'] === EmailLexer::S_HYPHEN) {
throw new \InvalidArgumentException('ERR_DOMAINHYPHENEND');
}
if ($length > self::DOMAIN_MAX_LENGTH) {
$this->warnings[] = EmailValidator::RFC5322_DOMAIN_TOOLONG;
}
if ($prev['type'] === EmailLexer::S_CR) {
throw new \InvalidArgumentException('ERR_FWS_CRLF_END');
}
$this->domainPart = $domain;
}
public function getDomainPart()
{
return $this->domainPart;
}
public function checkIPV6Tag($addressLiteral, $maxGroups = 8)
{
$prev = $this->lexer->getPrevious();
if ($prev['type'] === EmailLexer::S_COLON) {
$this->warnings[] = EmailValidator::RFC5322_IPV6_COLONEND;
}
$IPv6 = substr($addressLiteral, 5);
//Daniel Marschall's new IPv6 testing strategy
$matchesIP = explode(':', $IPv6);
$groupCount = count($matchesIP);
$colons = strpos($IPv6, '::');
if (count(preg_grep('/^[0-9A-Fa-f]{0,4}$/', $matchesIP, PREG_GREP_INVERT)) !== 0) {
$this->warnings[] = EmailValidator::RFC5322_IPV6_BADCHAR;
}
if ($colons === false) {
// We need exactly the right number of groups
if ($groupCount !== $maxGroups) {
$this->warnings[] = EmailValidator::RFC5322_IPV6_GRPCOUNT;
}
return;
}
if ($colons !== strrpos($IPv6, '::')) {
$this->warnings[] = EmailValidator::RFC5322_IPV6_2X2XCOLON;
return;
}
if ($colons === 0 || $colons === (strlen($IPv6) - 2)) {
// RFC 4291 allows :: at the start or end of an address
//with 7 other groups in addition
++$maxGroups;
}
if ($groupCount > $maxGroups) {
$this->warnings[] = EmailValidator::RFC5322_IPV6_MAXGRPS;
} elseif ($groupCount === $maxGroups) {
$this->warnings[] = EmailValidator::RFC5321_IPV6DEPRECATED;
}
}
protected function doParseDomainPart()
{
$domain = '';
$openedParenthesis = 0;
$openBrackets = false;
do {
$prev = $this->lexer->getPrevious();
$this->checkNotAllowedChars($this->lexer->token);
if ($this->lexer->token['type'] === EmailLexer::S_OPENPARENTHESIS) {
$this->parseComments();
$openedParenthesis += $this->getOpenedParenthesis();
$this->lexer->moveNext();
$tmpPrev = $this->lexer->getPrevious();
if ($tmpPrev['type'] === EmailLexer::S_CLOSEPARENTHESIS) {
$openedParenthesis--;
}
}
if ($this->lexer->token['type'] === EmailLexer::S_CLOSEPARENTHESIS) {
if ($openedParenthesis === 0) {
throw new \InvalidArgumentException('ERR_UNOPENEDCOMMENT');
} else {
$openedParenthesis--;
}
}
$this->checkConsecutiveDots();
$this->checkDomainPartExceptions($prev);
if ($openBrackets = $this->hasBrackets($openBrackets)) {
$this->parseDomainLiteral();
}
$this->checkLabelLength($prev);
if ($this->isFWS()) {
$this->parseFWS();
}
$domain .= $this->lexer->token['value'];
$this->lexer->moveNext();
} while ($this->lexer->token);
return $domain;
}
private function checkNotAllowedChars($token)
{
$notAllowed = array(EmailLexer::S_BACKSLASH => true, EmailLexer::S_SLASH=> true);
if (isset($notAllowed[$token['type']])) {
throw new \InvalidArgumentException('ERR_DOMAIN_CHAR_NOT_ALLOWED');
}
}
protected function parseDomainLiteral()
{
if ($this->lexer->isNextToken(EmailLexer::S_COLON)) {
$this->warnings[] = EmailValidator::RFC5322_IPV6_COLONSTRT;
}
if ($this->lexer->isNextToken(EmailLexer::S_IPV6TAG)) {
$lexer = clone $this->lexer;
$lexer->moveNext();
if ($lexer->isNextToken(EmailLexer::S_DOUBLECOLON)) {
$this->warnings[] = EmailValidator::RFC5322_IPV6_COLONSTRT;
}
}
return $this->doParseDomainLiteral();
}
protected function doParseDomainLiteral()
{
$IPv6TAG = false;
$addressLiteral = '';
do {
if ($this->lexer->token['type'] === EmailLexer::C_NUL) {
throw new \InvalidArgumentException('ERR_EXPECTING_DTEXT');
}
if ($this->lexer->token['type'] === EmailLexer::INVALID ||
$this->lexer->token['type'] === EmailLexer::C_DEL ||
$this->lexer->token['type'] === EmailLexer::S_LF
) {
$this->warnings[] = EmailValidator::RFC5322_DOMLIT_OBSDTEXT;
}
if ($this->lexer->isNextTokenAny(array(EmailLexer::S_OPENQBRACKET, EmailLexer::S_OPENBRACKET))) {
throw new \InvalidArgumentException('ERR_EXPECTING_DTEXT');
}
if ($this->lexer->isNextTokenAny(
array(EmailLexer::S_HTAB, EmailLexer::S_SP, $this->lexer->token['type'] === EmailLexer::CRLF)
)) {
$this->warnings[] = EmailValidator::CFWS_FWS;
$this->parseFWS();
}
if ($this->lexer->isNextToken(EmailLexer::S_CR)) {
throw new \InvalidArgumentException('ERR_CR_NO_LF');
}
if ($this->lexer->token['type'] === EmailLexer::S_BACKSLASH) {
$this->warnings[] = EmailValidator::RFC5322_DOMLIT_OBSDTEXT;
$addressLiteral .= $this->lexer->token['value'];
$this->lexer->moveNext();
$this->validateQuotedPair();
}
if ($this->lexer->token['type'] === EmailLexer::S_IPV6TAG) {
$IPv6TAG = true;
}
if ($this->lexer->token['type'] === EmailLexer::S_CLOSEQBRACKET) {
break;
}
$addressLiteral .= $this->lexer->token['value'];
} while ($this->lexer->moveNext());
$addressLiteral = str_replace('[', '', $addressLiteral);
$addressLiteral = $this->checkIPV4Tag($addressLiteral);
if (false === $addressLiteral) {
return $addressLiteral;
}
if (!$IPv6TAG) {
$this->warnings[] = EmailValidator::RFC5322_DOMAINLITERAL;
return $addressLiteral;
}
$this->warnings[] = EmailValidator::RFC5321_ADDRESSLITERAL;
$this->checkIPV6Tag($addressLiteral);
return $addressLiteral;
}
protected function checkIPV4Tag($addressLiteral)
{
$matchesIP = array();
// Extract IPv4 part from the end of the address-literal (if there is one)
if (preg_match(
'/\\b(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/',
$addressLiteral,
$matchesIP
) > 0
) {
$index = strrpos($addressLiteral, $matchesIP[0]);
if ($index === 0) {
$this->warnings[] = EmailValidator::RFC5321_ADDRESSLITERAL;
return false;
}
// Convert IPv4 part to IPv6 format for further testing
$addressLiteral = substr($addressLiteral, 0, $index) . '0:0';
}
return $addressLiteral;
}
protected function checkDomainPartExceptions($prev)
{
$invalidDomainTokens = array(
EmailLexer::S_DQUOTE => true,
EmailLexer::S_SEMICOLON => true,
EmailLexer::S_GREATERTHAN => true,
EmailLexer::S_LOWERTHAN => true,
);
if (isset($invalidDomainTokens[$this->lexer->token['type']])) {
throw new \InvalidArgumentException('ERR_EXPECTING_ATEXT');
}
if ($this->lexer->token['type'] === EmailLexer::S_COMMA) {
throw new \InvalidArgumentException('ERR_COMMA_IN_DOMAIN');
}
if ($this->lexer->token['type'] === EmailLexer::S_AT) {
throw new \InvalidArgumentException('ERR_CONSECUTIVEATS');
}
if ($this->lexer->token['type'] === EmailLexer::S_OPENQBRACKET && $prev['type'] !== EmailLexer::S_AT) {
throw new \InvalidArgumentException('ERR_EXPECTING_ATEXT');
}
if ($this->lexer->token['type'] === EmailLexer::S_HYPHEN && $this->lexer->isNextToken(EmailLexer::S_DOT)) {
throw new \InvalidArgumentException('ERR_DOMAINHYPHENEND');
}
if ($this->lexer->token['type'] === EmailLexer::S_BACKSLASH
&& $this->lexer->isNextToken(EmailLexer::GENERIC)) {
throw new \InvalidArgumentException('ERR_EXPECTING_ATEXT');
}
}
protected function hasBrackets($openBrackets)
{
if ($this->lexer->token['type'] === EmailLexer::S_CLOSEBRACKET && !$openBrackets) {
throw new \InvalidArgumentException('ERR_EXPECTING_OPENBRACKET');
}
if ($this->lexer->token['type'] !== EmailLexer::S_OPENBRACKET) {
return false;
}
try {
$this->lexer->find(EmailLexer::S_CLOSEBRACKET);
} catch (\RuntimeException $e) {
throw new \InvalidArgumentException('ERR_EXPECTING_DOMLIT_CLOSE');
}
return true;
}
protected function checkLabelLength($prev)
{
if ($this->lexer->token['type'] === EmailLexer::S_DOT &&
$prev['type'] === EmailLexer::GENERIC &&
strlen($prev['value']) > 63
) {
$this->warnings[] = EmailValidator::RFC5322_LABEL_TOOLONG;
}
}
protected function parseDomainComments()
{
$this->isUnclosedComment();
while (!$this->lexer->isNextToken(EmailLexer::S_CLOSEPARENTHESIS)) {
$this->warnEscaping();
$this->lexer->moveNext();
}
$this->lexer->moveNext();
if ($this->lexer->isNextToken(EmailLexer::S_DOT)) {
throw new \InvalidArgumentException('ERR_EXPECTING_ATEXT');
}
}
}
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