139 lines
4.4 KiB
PHP
139 lines
4.4 KiB
PHP
<?php
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namespace Egulias\EmailValidator\Parser;
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use Egulias\EmailValidator\Exception\DotAtEnd;
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use Egulias\EmailValidator\Exception\DotAtStart;
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use Egulias\EmailValidator\EmailLexer;
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use Egulias\EmailValidator\EmailValidator;
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use Egulias\EmailValidator\Exception\ExpectingAT;
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use Egulias\EmailValidator\Exception\ExpectingATEXT;
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use Egulias\EmailValidator\Exception\UnclosedQuotedString;
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use Egulias\EmailValidator\Exception\UnopenedComment;
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use Egulias\EmailValidator\Warning\CFWSWithFWS;
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use Egulias\EmailValidator\Warning\LocalTooLong;
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class LocalPart extends Parser
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{
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public function parse($localPart)
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{
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$parseDQuote = true;
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$closingQuote = false;
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$openedParenthesis = 0;
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while ($this->lexer->token['type'] !== EmailLexer::S_AT && $this->lexer->token) {
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if ($this->lexer->token['type'] === EmailLexer::S_DOT && !$this->lexer->getPrevious()) {
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throw new DotAtStart();
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}
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$closingQuote = $this->checkDQUOTE($closingQuote);
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if ($closingQuote && $parseDQuote) {
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$parseDQuote = $this->parseDoubleQuote();
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}
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if ($this->lexer->token['type'] === EmailLexer::S_OPENPARENTHESIS) {
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$this->parseComments();
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$openedParenthesis += $this->getOpenedParenthesis();
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}
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if ($this->lexer->token['type'] === EmailLexer::S_CLOSEPARENTHESIS) {
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if ($openedParenthesis === 0) {
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throw new UnopenedComment();
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} else {
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$openedParenthesis--;
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}
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}
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$this->checkConsecutiveDots();
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if ($this->lexer->token['type'] === EmailLexer::S_DOT &&
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$this->lexer->isNextToken(EmailLexer::S_AT)
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) {
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throw new DotAtEnd();
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}
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$this->warnEscaping();
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$this->isInvalidToken($this->lexer->token, $closingQuote);
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if ($this->isFWS()) {
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$this->parseFWS();
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}
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$this->lexer->moveNext();
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}
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$prev = $this->lexer->getPrevious();
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if (strlen($prev['value']) > LocalTooLong::LOCAL_PART_LENGTH) {
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$this->warnings[LocalTooLong::CODE] = new LocalTooLong();
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}
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}
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protected function parseDoubleQuote()
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{
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$parseAgain = true;
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$special = array(
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EmailLexer::S_CR => true,
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EmailLexer::S_HTAB => true,
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EmailLexer::S_LF => true
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);
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$invalid = array(
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EmailLexer::C_NUL => true,
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EmailLexer::S_HTAB => true,
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EmailLexer::S_CR => true,
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EmailLexer::S_LF => true
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);
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$setSpecialsWarning = true;
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$this->lexer->moveNext();
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while ($this->lexer->token['type'] !== EmailLexer::S_DQUOTE && $this->lexer->token) {
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$parseAgain = false;
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if (isset($special[$this->lexer->token['type']]) && $setSpecialsWarning) {
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$this->warnings[CFWSWithFWS::CODE] = new CFWSWithFWS();
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$setSpecialsWarning = false;
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}
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if ($this->lexer->token['type'] === EmailLexer::S_BACKSLASH && $this->lexer->isNextToken(EmailLexer::S_DQUOTE)) {
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$this->lexer->moveNext();
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}
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$this->lexer->moveNext();
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if (!$this->escaped() && isset($invalid[$this->lexer->token['type']])) {
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throw new ExpectingATEXT();
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}
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}
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$prev = $this->lexer->getPrevious();
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if ($prev['type'] === EmailLexer::S_BACKSLASH) {
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if (!$this->checkDQUOTE(false)) {
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throw new UnclosedQuotedString();
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}
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}
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if (!$this->lexer->isNextToken(EmailLexer::S_AT) && $prev['type'] !== EmailLexer::S_BACKSLASH) {
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throw new ExpectingAT();
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}
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return $parseAgain;
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}
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protected function isInvalidToken($token, $closingQuote)
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{
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$forbidden = array(
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EmailLexer::S_COMMA,
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EmailLexer::S_CLOSEBRACKET,
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EmailLexer::S_OPENBRACKET,
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EmailLexer::S_GREATERTHAN,
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EmailLexer::S_LOWERTHAN,
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EmailLexer::S_COLON,
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EmailLexer::S_SEMICOLON,
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EmailLexer::INVALID
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);
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if (in_array($token['type'], $forbidden) && !$closingQuote) {
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throw new ExpectingATEXT();
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}
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}
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}
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