| 1 | <?php |
| 2 | /* |
| 3 | * $Id: Email.php 2702 2007-10-03 21:43:22Z Jonathan.Wage $ |
| 4 | * |
| 5 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 6 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 7 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 8 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 9 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 10 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 11 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 12 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 13 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 14 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 15 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 16 | * |
| 17 | * This software consists of voluntary contributions made by many individuals |
| 18 | * and is licensed under the LGPL. For more information, see |
| 19 | * <http://www.phpdoctrine.com>. |
| 20 | */ |
| 21 | |
| 22 | /** |
| 23 | * Doctrine_Validator_Email |
| 24 | * |
| 25 | * @package Doctrine |
| 26 | * @subpackage Validator |
| 27 | * @license http://www.opensource.org/licenses/lgpl-license.php LGPL |
| 28 | * @link www.phpdoctrine.com |
| 29 | * @since 1.0 |
| 30 | * @version $Revision: 2702 $ |
| 31 | * @author Konsta Vesterinen <kvesteri@cc.hut.fi> |
| 32 | */ |
| 33 | class Doctrine_Validator_Email |
| 34 | { |
| 35 | /** |
| 36 | * checks if given value is a valid email address |
| 37 | * |
| 38 | * @link http://iamcal.com/publish/articles/php/parsing_email/pdf/ |
| 39 | * @param mixed $value |
| 40 | * @return boolean |
| 41 | */ |
| 42 | public function validate($value) |
| 43 | { |
| 44 | if ($value === null) { |
| 45 | return true; |
| 46 | } |
| 47 | if (isset($this->args)) { |
| 48 | $parts = explode('@', $value); |
| 49 | if (isset($parts[1]) && function_exists('checkdnsrr')) { |
| 50 | if ( ! checkdnsrr($parts[1], 'MX')) { |
| 51 | return false; |
| 52 | } |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | $qtext = '[^\\x0d\\x22\\x5c\\x80-\\xff]'; |
| 57 | $dtext = '[^\\x0d\\x5b-\\x5d\\x80-\\xff]'; |
| 58 | $atom = '[^\\x00-\\x20\\x22\\x28\\x29\\x2c\\x2e\\x3a-\\x3c\\x3e\\x40\\x5b-\\x5d\\x7f-\\xff]+'; |
| 59 | $quotedPair = '\\x5c[\\x00-\\x7f]'; |
| 60 | $domainLiteral = "\\x5b($dtext|$quotedPair)*\\x5d"; |
| 61 | $quotedString = "\\x22($qtext|$quotedPair)*\\x22"; |
| 62 | $domain_ref = $atom; |
| 63 | $subDomain = "($domain_ref|$domainLiteral)"; |
| 64 | $word = "($atom|$quotedString)"; |
| 65 | $domain = "$subDomain(\\x2e$subDomain)+"; |
| 66 | /* |
| 67 | following pseudocode to allow strict checking - ask pookey about this if you're puzzled |
| 68 | |
| 69 | if ($this->getValidationOption('strict_checking') == true) { |
| 70 | $domain = "$sub_domain(\\x2e$sub_domain)*"; |
| 71 | } |
| 72 | */ |
| 73 | $localPart = "$word(\\x2e$word)*"; |
| 74 | $addrSpec = "$localPart\\x40$domain"; |
| 75 | |
| 76 | return (bool) preg_match("!^$addrSpec$!D", $value); |
| 77 | } |
| 78 | } |