IMAP或POP3服务器的PHP实现 [英] IMAP or POP3 server implemented in PHP
问题描述
有POP3 / IMAP服务器的PHP任何可用的执行？
Is there any available implementation of POP3/IMAP server in PHP?
我是用我的处理电子邮件服务 sendgrid 。我将使用的文件/数据库/我想什么，现在提供全面POP3或IMAP（preferable）访问我的用户其邮箱存储在我的服务器上的信息。是否有这样的PHP执行？或者有没有其他的可能性，运行在Windows Azure中的分布式环境POP3 / IMAP（假设我有存储在共享的blob /表/ DB邮箱）？
I am handling my e-mail service using sendgrid. I am going to store the messages on my server using files/db/whatever and now I'd like to provide full POP3 or IMAP (preferable) access for my users to their mailbox. Is there such implementation in PHP? Or is there any other possibility to run POP3/IMAP in the distributed environment of Windows Azure (assuming I have the mailboxes stored in shared blobs/tables/db)?
推荐答案
好吧，只是为了显示它实际上可以用PHP编写一个POP3服务器，在这儿呢。该服务器确实没有认证 - 或者pretty太多别的。它只是不停地一遍又一遍地发送同样的信息。但是，它的工作原理。雷鸟能够从中检索信息。完全无用的，但挺酷的。
Well, just to show that it is in fact possible to write a POP3 server in PHP, here it is. The server does no authentication--or pretty much anything else. It just keep sending the same message over and over. But it works. Thunderbird was able to retrieve messages from it. Totally useless, but sort of cool.
我的设置是在Windows上的Apache 2和PHP 5.2。
My setup is Apache 2 on Windows with PHP 5.2.
<?php
// echo something so fopen() would return
header("Content-type: text/plain");
echo "OK\n";
flush();
// listen for incoming connection
$listen_socket = socket_create_listen(110, 1);
$r = $w = $e = array($listen_socket);
$n = socket_select($r, $w, $e, 120);
$client_socket = ($n == 1) ? socket_accept($listen_socket) : null;
socket_close($listen_socket);
// spawn copy of myself
$internal_url = "http://{$_SERVER['HTTP_HOST']}:{$_SERVER['SERVER_PORT']}{$_SERVER['SCRIPT_NAME']}";
$stream_context_options = array (
'http' => array (
'method' => 'GET',
'timeout' => 1
)
);
$context = stream_context_create($stream_context_options);
if($f = fopen($internal_url, "rb", 0, $context)) {
fclose($f);
}
if(!$client_socket) {
// timed out
exit;
}
// start handling the session
$read_buffer = "";
$write_buffer = "+OK POP3 server ready\r\n";
$active = true;
$messages = array(
"From: webmaster@example.com\r\nSubject: This is a test\r\n\r\nHello world!\r\n"
);
$idle_start = time();
while(true) {
$r = $w = $e = array($client_socket);
$n = socket_select($r, $w, $e, 60);
if($n) {
if($r) {
// read from the socket
$read_buffer .= socket_read($client_socket, 128);
$idle_start = time();
}
if($w) {
if($write_buffer) {
// write to the socket
$written = socket_write($client_socket, $write_buffer);
$write_buffer = substr($write_buffer, $written);
$idle_start = time();
} else if($active) {
$now = time();
$idle_time = $now - $idle_start;
if($idle_time > 10) {
// exit if nothing happened for 10 seconds
break;
} else if($idle_time > 2) {
// start napping when the client is too slow
sleep(1);
}
} else {
break;
}
}
if($e) {
break;
}
if($read_buffer) {
if(preg_match('/(.*?)(?:\s+(.*?))?[\r\n]+/', $read_buffer, $matches)) {
$read_buffer = substr($read_buffer, strlen($matches[0]));
$command = $matches[1];
$argument = $matches[2];
switch($command) {
case 'USER':
$username = $argument;
$write_buffer .= "+OK $username is welcome here\r\n";
break;
case 'PASS':
$message_count = count($messages);
$write_buffer .= "+OK mailbox has $message_count message(s)\r\n";
break;
case 'QUIT':
$write_buffer .= "+OK POP3 server signing off\r\n";
$active = false;
break;
case 'STAT':
$message_count = count($messages);
$mailbox_size = 0;
foreach($messages as $message) {
$mailbox_size += strlen($message);
}
$write_buffer .= "+OK $message_count $mailbox_size\r\n";
break;
case 'LIST':
$start_index = (int) $argument;
$message_count = count($messages) - $start_index;
$total_size = 0;
for($i = $start_index; $i < count($messages); $i++) {
$total_size += strlen($messages[$i]);
}
$write_buffer .= "+OK $message_count messages ($total_size octets)\r\n";
for($i = $start_index; $i < count($messages); $i++) {
$message_id = $i + 1;
$message_size = strlen($messages[$i]);
$write_buffer .= "$message_id $message_size\r\n";
}
$write_buffer .= ".\r\n";
break;
case 'RETR':
$message_id = (int) $argument;
$message = $messages[$message_id - 1];
$message_size = strlen($message);
$write_buffer .= "+OK $message_size octets\r\n";
$write_buffer .= "$message\r\n";
$write_buffer .= ".\r\n";
break;
case 'DELE':
$write_buffer .= "+OK\r\n";
break;
case 'NOOP':
$write_buffer .= "+OK\r\n";
break;
case 'LAST':
$message_count = count($messages) - $start_index;
$write_buffer .= "+OK $message_count\r\n";
break;
case 'RSET':
$write_buffer .= "+OK\r\n";
break;
default:
$write_buffer .= "-ERR Unknown command '$command'\r\n";
}
}
}
} else {
break;
}
}
?>
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