git subrepo clone https://github.com/mailcow/mailcow-dockerized.git mailcow/src/mailcow-dockerized

subrepo: subdir:   "mailcow/src/mailcow-dockerized"
  merged:   "a832becb"
upstream: origin:   "https://github.com/mailcow/mailcow-dockerized.git"
  branch:   "master"
  commit:   "a832becb"
git-subrepo: version:  "0.4.3"
  origin:   "???"
  commit:   "???"
Change-Id: If5be2d621a211e164c9b6577adaa7884449f16b5
diff --git a/mailcow/src/mailcow-dockerized/data/web/inc/sessions.inc.php b/mailcow/src/mailcow-dockerized/data/web/inc/sessions.inc.php
new file mode 100644
index 0000000..5c7ec71
--- /dev/null
+++ b/mailcow/src/mailcow-dockerized/data/web/inc/sessions.inc.php
@@ -0,0 +1,140 @@
+<?php

+// Start session

+if (session_status() !== PHP_SESSION_ACTIVE) {

+  ini_set("session.cookie_httponly", 1);

+  ini_set('session.gc_maxlifetime', $SESSION_LIFETIME);

+}

+

+if (isset($_SERVER['HTTP_X_FORWARDED_PROTO']) && 

+  strtolower($_SERVER['HTTP_X_FORWARDED_PROTO']) == "https") {

+  if (session_status() !== PHP_SESSION_ACTIVE) {

+    ini_set("session.cookie_secure", 1);

+  }

+  $IS_HTTPS = true;

+}

+elseif (isset($_SERVER['HTTPS'])) {

+  if (session_status() !== PHP_SESSION_ACTIVE) {

+    ini_set("session.cookie_secure", 1);

+  }

+  $IS_HTTPS = true;

+}

+else {

+  $IS_HTTPS = false;

+}

+

+if (session_status() !== PHP_SESSION_ACTIVE) {

+  session_start();

+}

+

+if (!isset($_SESSION['CSRF']['TOKEN'])) {

+  $_SESSION['CSRF']['TOKEN'] = bin2hex(random_bytes(32));

+}

+

+// Set session UA

+if (!isset($_SESSION['SESS_REMOTE_UA'])) {

+  $_SESSION['SESS_REMOTE_UA'] = $_SERVER['HTTP_USER_AGENT'];

+}

+

+// Keep session active

+if (isset($_SESSION['LAST_ACTIVITY']) && (time() - $_SESSION['LAST_ACTIVITY'] > $SESSION_LIFETIME)) {

+  session_unset();

+  session_destroy();

+}

+$_SESSION['LAST_ACTIVITY'] = time();

+

+// API

+if (!empty($_SERVER['HTTP_X_API_KEY'])) {

+  $stmt = $pdo->prepare("SELECT * FROM `api` WHERE `api_key` = :api_key AND `active` = '1';");

+  $stmt->execute(array(

+    ':api_key' => preg_replace('/[^a-zA-Z0-9-]/', '', $_SERVER['HTTP_X_API_KEY'])

+  ));

+  $api_return = $stmt->fetch(PDO::FETCH_ASSOC);

+  if (!empty($api_return['api_key'])) {

+    $skip_ip_check = ($api_return['skip_ip_check'] == 1);

+    $remote = get_remote_ip(false);

+    $allow_from = array_map('trim', preg_split( "/( |,|;|\n)/", $api_return['allow_from']));

+    if ($skip_ip_check === true || ip_acl($remote, $allow_from)) {

+      $_SESSION['mailcow_cc_username'] = 'API';

+      $_SESSION['mailcow_cc_role'] = 'admin';

+      $_SESSION['mailcow_cc_api'] = true;

+      if ($api_return['access'] == 'rw') {

+        $_SESSION['mailcow_cc_api_access'] = 'rw';

+      }

+      else {

+        $_SESSION['mailcow_cc_api_access'] = 'ro';

+      }

+    }

+    else {

+      $redis->publish("F2B_CHANNEL", "mailcow UI: Invalid password for API_USER by " . $_SERVER['REMOTE_ADDR']);

+      error_log("mailcow UI: Invalid password for " . $user . " by " . $_SERVER['REMOTE_ADDR']);

+      http_response_code(401);

+      echo json_encode(array(

+        'type' => 'error',

+        'msg' => 'api access denied for ip ' . $_SERVER['REMOTE_ADDR']

+      ));

+      unset($_POST);

+      exit();

+    }

+  }

+  else {

+    $redis->publish("F2B_CHANNEL", "mailcow UI: Invalid password for API_USER by " . $_SERVER['REMOTE_ADDR']);

+    error_log("mailcow UI: Invalid password for " . $user . " by " . $_SERVER['REMOTE_ADDR']);

+    http_response_code(401);

+    echo json_encode(array(

+      'type' => 'error',

+      'msg' => 'authentication failed'

+    ));

+    unset($_POST);

+    exit();

+  }

+}

+

+// Handle logouts

+if (isset($_POST["logout"])) {

+  if (isset($_SESSION["dual-login"])) {

+    $_SESSION["mailcow_cc_username"] = $_SESSION["dual-login"]["username"];

+    $_SESSION["mailcow_cc_role"] = $_SESSION["dual-login"]["role"];

+    unset($_SESSION["dual-login"]);

+    header("Location: /mailbox");

+    exit();

+  }

+  else {

+    session_regenerate_id(true);

+    session_unset();

+    session_destroy();

+    session_write_close();

+    header("Location: /");

+  }

+}

+

+// Check session

+function session_check() {

+  if (isset($_SESSION['mailcow_cc_api']) && $_SESSION['mailcow_cc_api'] === true) {

+    return true;

+  }

+  if (!isset($_SESSION['SESS_REMOTE_UA']) || ($_SESSION['SESS_REMOTE_UA'] != $_SERVER['HTTP_USER_AGENT'])) {

+    $_SESSION['return'][] = array(

+      'type' => 'warning',

+      'msg' => 'session_ua'

+    );

+    return false;

+  }

+  if (!empty($_POST)) {

+    if ($_SESSION['CSRF']['TOKEN'] != $_POST['csrf_token']) {

+      $_SESSION['return'][] = array(

+        'type' => 'warning',

+        'msg' => 'session_token'

+      );

+      return false;

+    }

+    unset($_POST['csrf_token']);

+    $_SESSION['CSRF']['TOKEN'] = bin2hex(random_bytes(32));

+    $_SESSION['CSRF']['TIME'] = time();

+  }

+  return true;

+}

+

+if (isset($_SESSION['mailcow_cc_role']) && session_check() === false) {

+  $_POST = array();

+  $_FILES = array();

+}