<?php
die(''); # 2020

if(!isset($_POST) or !$_POST){die('ee');}

require_once __DIR__.'/datasci_helpers.php';
file_put_contents('ajax-subscribe.inputlog.php'
  , "\n<?php exit;?>"
       .(isset($_POST['email']) ? $_POST['email'] : '-email-')
       .'`'.(isset($_POST['name']) ? $_POST['name'] : '-name-')
       .'`'.date('Y-m-d H:i:s')
       .'`'.(isset($_SERVER['REMOTE_ADDR']) ? $_SERVER['REMOTE_ADDR'] : '-ip-')
       .'`'.(isset($_SERVER['HTTP_USER_AGENT']) ? $_SERVER['HTTP_USER_AGENT'] : '-ua-')
  , FILE_APPEND | LOCK_EX);

die('{"success":true, "msg":"讚! 已成功訂閱。"}');

if(1){

//forward to 140.109.16.34
$url = 'http://140.109.16.34/ajax-subscribe_from_vultr.php';
$res = post_request($url, $_POST);
var_dump($res);
die($res['content']);

/*
$name = $_POST['name'];
$myvars = 'name=' . $name. '&email=' . $_POST['email'];

$ch = curl_init( $url );
curl_setopt( $ch, CURLOPT_POST, 1);
curl_setopt( $ch, CURLOPT_POSTFIELDS, $myvars);
curl_setopt( $ch, CURLOPT_FOLLOWLOCATION, 1);
curl_setopt( $ch, CURLOPT_HEADER, 0);
curl_setopt( $ch, CURLOPT_RETURNTRANSFER, 1);

$response = curl_exec( $ch );
die($response);
*/

}else{

# https://stackoverflow.com/questions/3080146/post-data-to-a-url-in-php
#$API_URL = 'http://di3.vcloud.iis.sinica.edu.tw/~vans/rb2/api/insert_subscribe_from_2017datascitw.php';
$API_URL = 'http://140.109.22.22/di3.vcloud.iis.sinica.edu.tw_proxy.php'; #use proxy

$DEBUG_API_URL = 0;
if($DEBUG_API_URL){ #debug API 
$name = $_GET['name'];$email = $_GET['email'];
}else{
$name = isset($_POST['name']) ? avoid_sqlinject($_POST['name']) : '';
$email = isset($_POST['email']) ? avoid_sqlinject($_POST['email']) : '';
if(!$name){
  die('{"err":"請填入姓名"}');
}elseif(!$email){
  die('{"err":"請填入 E-mail"}');
}elseif(!filter_var($email, FILTER_VALIDATE_EMAIL)){
  die('{"err":"E-mail 格式有誤"}');
}
}

$myvars = 'event=2017datascitw&name='.$name.'&email='.$email;
$ary_postdata['data'] = base64_encode($myvars);
$ary_postdata['api'] = base64_encode('insert_subscribe_from_2017datascitw.php');
$ary_response = post_request($API_URL, $ary_postdata);
$response = $ary_response['content'];

$prefix = '{';
if(0){#debug
  $prefix = '{"debug":"'.addslashes($response).'",';
}

try{
  $o = json_decode($response);
	if(isset($o->success) and $o->success===true){
	  die($prefix.'"success":true, "msg":"'.$o->msg.'", "debug0":""}');
	}elseif(isset($o->err)){
	  die($prefix.'"err":"'.$o->err.'", "debug1":""}');
	}
	die($prefix.'"debug2":""}');
}catch(Exception $e){
  file_put_contents(__DIR__.'/ajax-subscribe.log.php', "\n".$e->getMessage(), FILE_APPEND | LOCK_EX);
  die($prefix.'"err":"未知的錯誤，請重試。"}');
}

/* copy from old 2016 version
if( !isset($_POST['email']) OR !filter_var($_POST['email'],FILTER_VALIDATE_EMAIL)  )
{
    die('{"error":"請填入合法的電子郵件地址。"}');
}
$email = $_POST['email'];

if( !isset($_POST['name']) OR empty($_POST['name']) )
{
    die('{"error":"訂閱人姓名不可以為空白。"}');
}
$name = $_POST['name'];

$csv = fopen('mail-list.csv','r');
$header = fgetcsv($csv);
$mails = array();
while( $data = fgetcsv($csv) )
{
    $mails[] = $data[0];
    //$row = array_combine($header,$data);
    //$mails[] = $row['email'];
}
fclose($csv);

if( in_array($email,$mails) )
{
    die('{"error":"'.$email.' 已經訂閱。"}');
}

$event = '2017datascitw';
#if( isset($_POST['event']) AND !empty($_POST['event']) )
#{
#    $event = $_POST['event'];
#}

$data = array(
    $email,
    $name,
    date('Y-m-d H:i:s'),
    $event,
    $_SERVER['REMOTE_ADDR']
);

$fp = fopen('mail-list-test.csv','a');
fwrite($fp,'"'.implode('","',$data).'"'.PHP_EOL);
fclose($fp);
echo '{"status":"已為 ' . $name . ' (' . $email . ') 訂閱。"}';
*/
}