我正在尝试使用telnet和php进行邮件验证.整个过程在终端中说得很好,但是当我使用php shell_exec()时,它只运行到Telnet连接命令.连接telnet后,剩余的特定于telnet的命令将不再起作用.
有没有其他方法,我们需要使用PHP执行telnet？
更新：我正在尝试复制this教程.
这是我的代码
public function mailtest(Request $request){
//Taking input email
$email = $request->input("email");
$divide = explode("@", $email);
//Find out the Domain
$server = $divide[1];
$response = shell_exec("nslookup -q=mx $server");
//Response of the nslookup
print_r($response);
$mailServerList = explode(PHP_EOL, $response);
$line = $mailServerList[4];
$serverArr = preg_split('/\s+/', $line);
$n = sizeof($serverArr);
$mailServer = $serverArr[$n-1];
//Printing out the mail server out of the nslookup response
print_r($mailServer);
//Executing Telnet command
$telnet = shell_exec("telnet $mailServer 25");
print_r("telnet response ".$telnet);
//Telnet Helo
$helo = shell_exec("Helo ");
print_r("Helo response ".$helo);
//Telnet mail from
$from = shell_exec('mail from: testing@');
print_r("MAil from response ".$from);
//Telnet RCPT to
$finalResponse = shell_exec("rcpt to: $email");
print_r("Mail to response ".$finalResponse);
}
这是回应
Server: 10.0.80.11
Address: 10.0.80.11#53
Non-authoritative answer:
mail exchanger = 5 gmail-smtp-in..
mail exchanger = 10 alt1.gmail-smtp-in..
mail exchanger = 40 alt4.gmail-smtp-in..
mail exchanger = 30 alt3.gmail-smtp-in..
mail exchanger = 20 alt2.gmail-smtp-in..
Authoritative answers can be found from:
gmail-smtp-in. internet address = 173.194.64.27
gmail-smtp-in. has AAAA address 2607:f8b0:4003:c02::1a
alt1.gmail-smtp-in. internet address = 173.194.219.27
alt1.gmail-smtp-in. has AAAA address 2607:f8b0:4002:c03::1b
alt4.gmail-smtp-in. internet address = 64.233.190.26
alt4.gmail-smtp-in. has AAAA address 2800:3f0:4003:c01::1b
alt3.gmail-smtp-in. internet address = 74.125.141.26
alt3.gmail-smtp-in. has AAAA address 2607:f8b0:400c:c06::1a
alt2.gmail-smtp-in. internet address = 173.194.205.27
alt2.gmail-smtp-in. has AAAA address 2607:f8b0:400d:c02::1b
gmail-smtp-in..telnet response Trying 2607:f8b0:4003:c02::1a...
Connected to gmail-smtp-in..
Escape character is '^]'.
Helo response
MAil from response No message, no subject; hope that's ok
Mail to response
解决方法:
shell_exec不适合(参见Ulrich的解释).
fsockopen应该做的伎俩.
$fp = @fsockopen('', 9001);
if ($fp) {
fwrite($fp, "username\n");
fwrite($fp, "password\n");
while ($line = fread($fp, 2048)) {
// do things with $line
}
} else {
//return error
}
标签：php,email-validation,networking,telnet,shell-exec
来源： https://codeday.me/bug/0528/1168430.html
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