mailcow/data/web/sogo-auth.php

90 lines
3.2 KiB
PHP
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<?php
$ALLOW_ADMIN_EMAIL_LOGIN = (preg_match(
"/^([yY][eE][sS]|[yY])+$/",
$_ENV["ALLOW_ADMIN_EMAIL_LOGIN"]
));
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$session_var_user_allowed = 'sogo-sso-user-allowed';
$session_var_pass = 'sogo-sso-pass';
// validate credentials for basic auth requests
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if (isset($_SERVER['PHP_AUTH_USER'])) {
// load prerequisites only when required
require_once $_SERVER['DOCUMENT_ROOT'] . '/inc/prerequisites.inc.php';
$username = $_SERVER['PHP_AUTH_USER'];
$password = $_SERVER['PHP_AUTH_PW'];
$login_check = check_login($username, $password);
if ($login_check === 'user') {
header("X-User: $username");
header("X-Auth: Basic ".base64_encode("$username:$password"));
header("X-Auth-Type: Basic");
exit;
} else {
header('HTTP/1.0 401 Unauthorized');
echo 'Invalid login';
exit;
}
}
// check permissions and redirect for direct GET ?login=xy requests
elseif (isset($_GET['login'])) {
// load prerequisites only when required
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require_once $_SERVER['DOCUMENT_ROOT'] . '/inc/prerequisites.inc.php';
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// check if dual_login is active
$is_dual = (!empty($_SESSION["dual-login"]["username"])) ? true : false;
// check permissions (if dual_login is active, deny sso when acl is not given)
$login = html_entity_decode(rawurldecode($_GET["login"]));
if ($ALLOW_ADMIN_EMAIL_LOGIN === 0 && $is_dual === true) {
header('HTTP/1.0 403 Forbidden');
echo "Admin login is forbidden";
exit;
}
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if (isset($_SESSION['mailcow_cc_role']) &&
($_SESSION['acl']['login_as'] == "1" || ($is_dual === false && $login == $_SESSION['mailcow_cc_username']))) {
if (filter_var($login, FILTER_VALIDATE_EMAIL)) {
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if (user_get_alias_details($login) !== false) {
// load master password
$sogo_sso_pass = file_get_contents("/etc/sogo-sso/sogo-sso.pass");
// register username and password in session
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$_SESSION[$session_var_user_allowed][] = $login;
$_SESSION[$session_var_pass] = $sogo_sso_pass;
// redirect to sogo (sogo will get the correct credentials via nginx auth_request
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header("Location: /SOGo/so/${login}");
exit;
}
}
}
header('HTTP/1.0 403 Forbidden');
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echo "Access is forbidden";
exit;
}
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// only check for admin-login on sogo GUI requests
elseif (
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strcasecmp(substr($_SERVER['HTTP_X_ORIGINAL_URI'], 0, 9), "/SOGo/so/") === 0
) {
// this is an nginx auth_request call, we check for existing sogo-sso session variables
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session_start();
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// extract email address from "/SOGo/so/user@domain/xy"
$url_parts = explode("/", $_SERVER['HTTP_X_ORIGINAL_URI']);
$email = $url_parts[3];
// check if this email is in session allowed list
if (
!empty($email) &&
filter_var($email, FILTER_VALIDATE_EMAIL) &&
is_array($_SESSION[$session_var_user_allowed]) &&
in_array($email, $_SESSION[$session_var_user_allowed])
) {
$username = $email;
$password = $_SESSION[$session_var_pass];
header("X-User: $username");
header("X-Auth: Basic ".base64_encode("$username:$password"));
header("X-Auth-Type: Basic");
exit;
}
}
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// if username is empty, SOGo will use the normal login methods / login form
header("X-User: ");
header("X-Auth: ");
header("X-Auth-Type: ");