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libphutil/src/parser/PhutilEmailAddress.php
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PhutilEmailAddress.php
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<?php
/**
* Basic email address parser. This parser is very liberal and does not attempt
* to be fully RFC-compliant, because trying to do so is a crazy mess. However,
* it should parse all reasonable addresses which are actually in use on the
* internet today.
*/
final class PhutilEmailAddress extends Phobject {
private $displayName;
private $localPart;
private $domainName;
public function __construct($email_address = null) {
$email_address = trim($email_address);
$matches = null;
if (preg_match('/^(.*)<(.*?)>$/', $email_address, $matches)) {
$display_name = trim($matches[1], '\'" ');
if (strpos($matches[2], '@') !== false) {
list($local_part, $domain_name) = explode('@', $matches[2], 2);
} else {
$local_part = $matches[2];
$domain_name = null;
}
} else if (preg_match('/^(.*)@(.*)$/', $email_address, $matches)) {
$display_name = null;
$local_part = $matches[1];
$domain_name = $matches[2];
} else {
$display_name = null;
$local_part = $email_address;
$domain_name = null;
}
$this->displayName = $display_name;
$this->localPart = $local_part;
$this->domainName = $domain_name;
}
public function __toString() {
$address = $this->getAddress();
if (strlen($this->displayName)) {
$display_name = $this->encodeDisplayName($this->displayName);
return $display_name.' <'.$address.'>';
} else {
return $address;
}
}
public function setDisplayName($display_name) {
$this->displayName = $display_name;
return $this;
}
public function getDisplayName() {
return $this->displayName;
}
public function setLocalPart($local_part) {
$this->localPart = $local_part;
return $this;
}
public function getLocalPart() {
return $this->localPart;
}
public function setDomainName($domain_name) {
$this->domainName = $domain_name;
return $this;
}
public function getDomainName() {
return $this->domainName;
}
public function setAddress($address) {
$parts = explode('@', $address, 2);
$this->localPart = $parts[0];
if (isset($parts[1])) {
$this->domainName = $parts[1];
}
return $this;
}
public function getAddress() {
$address = $this->localPart;
if (strlen($this->domainName)) {
$address .= '@'.$this->domainName;
}
return $address;
}
private function encodeDisplayName($name) {
// NOTE: This is a reasonable effort based on a cursory reading of
// RFC2822, but may be significantly misguided.
// Newlines are not permitted, even when escaped. Discard them.
$name = preg_replace("/\s*[\r\n]+\s*/", ' ', $name);
// Escape double quotes and backslashes.
$name = addcslashes($name, '\\"');
// Quote the string.
$name = '"'.$name.'"';
return $name;
}
}
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