/**
* Returns the message IDs of all emails this message references.
*
* @access public
* @param string $text_headers The full headers of the message
* @return array An array of message-ids
*/
function getAllReferences($text_headers)
{
$references = array();
if (preg_match('/^In-Reply-To: (.*)/mi', $text_headers, $matches)) {
$references[] = trim($matches[1]);
}
if (preg_match('/^References: (.+?)(\\r?\\n\\r?\\n|\\r?\\n\\r?\\S)/smi', $text_headers, $matches)) {
$references = array_merge($references, explode(" ", Mail_API::unfold(trim($matches[1]))));
$references = array_map('trim', $references);
$references = array_unique($references);
}
foreach ($references as $key => $reference) {
if (empty($reference)) {
unset($references[$key]);
}
}
return $references;
}
/**
* Splits the full email into headers and body
*
* @access public
* @param string $message The full email message
* @param boolean $unfold If headers should be unfolded
* @return array An array containing the headers and body
*/
function splitHeaderBody($message, $unfold = true)
{
if (preg_match("/^(.*?)\r?\n\r?\n(.*)/s", $message, $match)) {
return array($unfold ? Mail_API::unfold($match[1]) : $match[1], $match[2]);
}
return array();
}