/**
* EML 文件解码
*
* @param string
* @return string
*/
function decode_eml($string)
{
$pos = strpos($string, '=?');
if (!is_int($pos)) {
return $string;
}
$preceding = substr($string, 0, $pos);
// save any preceding text
$search = substr($string, $pos + 2);
// the mime header spec says this is the longest a single encoded word can be
$part_1 = strpos($search, '?');
if (!is_int($part_1)) {
return $string;
}
$charset = substr($string, $pos + 2, $part_1);
// 取出字符集的定义部分
$search = substr($search, $part_1 + 1);
// 字符集定义以后的部分 => $search
$part_2 = strpos($search, '?');
if (!is_int($part_2)) {
return $string;
}
$encoding = substr($search, 0, $part_2);
// 两个? 之间的部分编码方式: q 或 b
$search = substr($search, $part_2 + 1);
$end = strpos($search, '?=');
// $part_2 + 1 与 $end 之间是编码了的内容: => $endcoded_text;
if (!is_int($end)) {
return $string;
}
$encoded_text = substr($search, 0, $end);
$rest = substr($string, strlen($preceding . $charset . $encoding . $encoded_text) + 6);
// + 6 是前面去掉的 =????= 六个字符
switch (strtolower($encoding)) {
case 'q':
$decoded = quoted_printable_decode($encoded_text);
if (strtolower($charset) == 'windows-1251') {
$decoded = convert_cyr_string($decoded, 'w', 'k');
}
break;
case 'b':
$decoded = base64_decode($encoded_text);
if (strtolower($charset) == 'windows-1251') {
$decoded = convert_cyr_string($decoded, 'w', 'k');
}
break;
default:
$decoded = '=?' . $charset . '?' . $encoding . '?' . $encoded_text . '?=';
break;
}
return $preceding . $decoded . decode_eml($rest);
}
public function receive_email_crond()
{
$now = time();
$lock_time = AWS_APP::cache()->get('receive_email_locker');
if ($lock_time and $now - $lock_time <= 600) {
return false;
}
$receiving_email_accounts = $this->get_receiving_email_config();
if (!$receiving_email_accounts) {
return false;
}
AWS_APP::cache()->set('receive_email_locker', $now, 600);
foreach ($receiving_email_accounts as $receiving_email_config) {
if (!$receiving_email_config['server'] or !$receiving_email_config['protocol'] or !$receiving_email_config['username'] or !$receiving_email_config['password'] or !$receiving_email_config['uid']) {
continue;
}
$mail_config = array('host' => $receiving_email_config['server'], 'user' => $receiving_email_config['username'], 'password' => $receiving_email_config['password']);
if ($receiving_email_config['ssl'] == 1) {
$mail_config['ssl'] = 'SSL';
}
if ($receiving_email_config['port']) {
$mail_config['port'] = $receiving_email_config['port'];
}
try {
switch ($receiving_email_config['protocol']) {
case 'pop3':
$mail = new Zend_Mail_Storage_Pop3($mail_config);
break;
case 'imap':
$mail = new Zend_Mail_Storage_Imap($mail_config);
break;
default:
continue 2;
}
} catch (Exception $e) {
$this->notification_of_receive_email_error($receiving_email_config['id'], $e->getMessage());
continue;
}
$this->notification_of_receive_email_error($receiving_email_config['id'], null);
$received_email['config_id'] = $receiving_email_config['id'];
$received_email['uid'] = $receiving_email_config['uid'];
foreach ($mail as $num => $message) {
try {
if ($receiving_email_config['protocol'] == 'imap' and $message->hasFlag(Zend_Mail_Storage::FLAG_SEEN)) {
continue;
}
$received_email['message_id'] = substr($message->messageID, 1, -1);
$received_email['date'] = intval(strtotime($message->Date));
if ($now - $received_email['date'] > 604800 or $this->fetch_row('received_email', 'message_id = "' . $this->quote($received_email['message_id']) . '" AND date = ' . $received_email['date'])) {
continue;
}
if ($message->isMultipart()) {
for ($i = 1; $i <= $message->countParts(); $i++) {
$part = $message->getPart($i);
if (substr($part->contentType, 0, 5) == 'text/') {
$encoding = $part->contentTransferEncoding;
$type = $part->contentType;
$received_email['content'] = $part->getContent();
break;
} else {
continue;
}
}
} else {
$encoding = $message->contentTransferEncoding;
$type = $message->contentType;
$received_email['content'] = $message->getContent();
}
if (!$encoding or !$type) {
continue;
}
preg_match('/charset\\s?=\\s?"?([a-zA-Z0-9-]+)"?$/i', $type, $matches);
$charset = strtolower($matches[1]);
$received_email['subject'] = decode_eml($message->Subject);
preg_match('/<?([^<]+@.+(\\.[^>]+)+)>?$/i', $message->From, $matches);
$received_email['from'] = strtolower($matches[1]);
switch ($encoding) {
case 'base64':
$received_email['content'] = base64_decode($received_email['content']);
break;
case 'quoted-printable':
$received_email['content'] = quoted_printable_decode($received_email['content']);
break;
}
if ($charset and $charset != 'utf-8') {
$received_email['subject'] = mb_convert_encoding($received_email['subject'], 'utf-8', $charset);
$received_email['content'] = mb_convert_encoding($received_email['content'], 'utf-8', $charset);
}
$received_email['subject'] = strip_tags($received_email['subject']);
$received_email['content'] = strip_tags(preg_replace(array('/<p(\\s+[^>]*)?>/i', '/<\\/p>/i', '/<br\\s*\\/?>/i'), "\n", $received_email['content']));
$now++;
$received_email['access_key'] = md5($received_email['uid'] . $now);
$this->insert('received_email', $received_email);
if ($receiving_email_config['protocol'] == 'pop3') {
$mail->removeMessage($num);
}
if ($receiving_email_config['protocol'] == 'imap') {
$mail->setFlags($num, array(Zend_Mail_Storage::FLAG_SEEN));
}
} catch (Exception $e) {
continue;
}
}
}
AWS_APP::cache()->delete('receive_email_locker');
return true;
}
