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(PHP) GD выдать PNG/JPG с цифрами/буквами при регистрации
#33630572
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Откуда: Оккупирую западный берег
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Сорри за длинный пост, лишнее вырезать некогда.
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<?php
include_once('config.inc.php');
session_start();
function rand_string($len = 10 ){
$e = base64_encode(pack("h*", sha1(mt_rand())));
return substr(strtr($e, "+/=", "xyz"), 0 , $len);
}
function check_email($email){
$pattern_email="~^[_a-z0-9-]+(\.[_a-z0-9-]+)*@[a-z0-9-]+(\.[a-z0-9-]+)*$~i";
return preg_match($pattern_email, $email);
}
function captcha_image(){
header ('Content-type: image/png');
$image = @imagecreate( 110 , 24 );
$background = imagecolorallocate($image, 51 , 153 , 153 );
$text_colour = imagecolorallocate($image, 255 , 204 , 102 );
# imagestring($image, 5 , 9 , 4 , $_SESSION['captcha'], $text_colour);
imagettftext($image, 11 , 0 , 10 , 19 , $text_colour, '../tahoma.ttf', $_SESSION['captcha']);
imagepng($image);
imagedestroy($image);
exit;
}
if (isset($_GET['image'])) { //create the image
if(empty($_SESSION['captcha']))exit;
captcha_image();
} else { // html section
if ((isset($_POST['login'])) and (isset($_POST['email'])) and (isset($_POST['password']))) { //Проверка, нажата ли кнопка входа в систему
$link = mysql_connect($dbhost, $dbuser, $dbpasswd) or die(mysql_error());
mysql_select_db($db, $link) or die(mysql_error());
$query_select_user = sprintf($stub_query_select_user, mysql_real_escape_string($_POST['email']), mysql_real_escape_string($_POST['password']));
$result_select_user = mysql_query($query_select_user) or die(mysql_error());
if($row_select_user = mysql_fetch_array($result_select_user)) {
$_SESSION['email'] = $row_select_user['email'];
$page_header = sprintf($stub_page_header, 'Login page', '<META HTTP-EQUIV="Refresh" CONTENT="3; URL=http://'.$_SERVER['HTTP_HOST'].'/">');
echo $page_header;
?>
<h1>Welcome back!</h1>
You have logged in as <?=htmlspecialchars($_SESSION['email'])?>
<?php
exit;
} else {
$page_header = sprintf($stub_page_header, 'Login page', '');
echo $page_header;
?>
<h1>Authorisation failed</h1>
Either email or password you've supplied is incorrect. Please try again or register new account.
<?php
}
} elseif (isset($_POST['register'])) { //Проверка, нажжата ли кнопка регистрации
if(check_email($_POST['email'])){
if($_POST['captcha'] == $_SESSION['captcha']){
$link = mysql_connect($dbhost, $dbuser, $dbpasswd) or die(mysql_error());
mysql_select_db($db, $link) or die(mysql_error());
$query_insert_user = sprintf($stub_query_insert_user, mysql_real_escape_string($_POST['email']), mysql_real_escape_string($_POST['password']));
$result_insert_user = mysql_query($query_insert_user) or die(mysql_error());
$_SESSION['email'] = $_POST['email'];
$page_header = sprintf($stub_page_header, 'Login page', '<META HTTP-EQUIV="Refresh" CONTENT="3; URL=http://'.$_SERVER['HTTP_HOST'].'/">');
echo $page_header;
$mail_registration_body = sprintf($stub_mail_registration_body, htmlspecialchars($_POST['email']), htmlspecialchars($_POST['password']));
mail($_SESSION['email'], "New account registration.", $mail_registration_body, $mail_registration_header);
?>
<h1>Welcome aboard!</h1>
You have succesfuly registered new user for email <?=htmlspecialchars($_SESSION['email'])?> and now loged on.
<?php
exit;
} else {
$page_header = sprintf($stub_page_header, 'Login page', '');
echo $page_header;
?>
<h1>Wrong CAPTCHA code</h1>
Please try again with new CAPTCHA code if you're human being.
<?php
}
} else {
$page_header = sprintf($stub_page_header, 'Login page', '');
echo $page_header;
?>
<h1>Wrong email</h1>
The email you've supplied is not correct. Please enter correct one.
<?php
}
} else {
$page_header = sprintf($stub_page_header, 'Login page', '');
echo $page_header;
?>
<h1>Introduce yourself</h1>
<?php
}
}
$_SESSION['captcha'] = rand_string();
?>
<table style="text-align: left; width: 572px;" border="1" cellpadding="2" cellspacing="2">
<tbody>
<tr>
<td style="text-align: left; width: 243px;">
Please login, if you're registered user</td>
<td style="text-align: left; width: 317px;">or
register, if you're a new one</td>
</tr>
<tr>
<td style="width: 243px;" class="rightline">
<form method="post" action="login.php" name="login"> <br>
<table style="text-align: left; width: 100%;" border="1" cellpadding="2" cellspacing="2">
<tbody>
<tr>
<td style="text-align: right;">email:</td>
<td><input maxlength="100" size="10" name="email"></td>
</tr>
<tr>
<td style="text-align: right;">password: </td>
<td><input maxlength="10" size="10" name="password" type="password"></td>
</tr>
<tr align="center">
<td> </td><td align=left><input name="login" value="login" type="submit"></td>
</tr>
</tbody>
</table>
<br>
</form>
</td>
<td style="width: 317px;">
<form method="post" action="login.php" name="register"> <br>
<table style="text-align: left; width: 270px; height: 252px;" border="1" cellpadding="2" cellspacing="2">
<tbody>
<tr>
<td style="text-align: right;">email:</td>
<td><input maxlength="100" size="10" name="email"></td>
</tr>
<tr>
<td style="text-align: right;">password:</td>
<td><input maxlength="10" size="10" name="password" type="password"></td>
</tr>
<tr>
<td style="text-align: right;">CAPTCHA code:</td>
<td><img src="http://<?=$_SERVER['HTTP_HOST'].$_SERVER['PHP_SELF']?>?image" alt="captcha image" height="24" width="110"></td>
</tr>
<tr>
<td style="text-align: right;">enter CAPTCHA
code:</td>
<td><input maxlength="10" size="10" name="captcha"></td>
</tr>
<tr align="center">
<td> </td><td align=left><input name="register" value="register" type="submit"></td>
</tr>
</tbody>
</table>
</form>
</td>
</tr>
</tbody>
</table>
</body>
</html>
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