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Add logic for checking/getting extension key/php session id

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This commit is contained in:
Marcus Hill
2022-01-15 21:35:59 +00:00
parent 20a903324e
commit 4ab28019c5
1 changed files with 50 additions and 13 deletions
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63
get_credential.php
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@@ -1,5 +1,4 @@
<?php <?php
/*
// Headers to allow extensions access (CORS) // Headers to allow extensions access (CORS)
$chrome_id = "chrome-extension://afgpakhonllnmnomchjhidealcpmnegc"; $chrome_id = "chrome-extension://afgpakhonllnmnomchjhidealcpmnegc";
@@ -16,24 +15,55 @@ if (isset($_SERVER['HTTP_ORIGIN'])) {
include("config.php"); include("config.php");
include("functions.php"); include("functions.php");
session_start(); // Check user is logged in & has extension access
// We're not using the PHP session as we don't want to potentially expose the session cookie with SameSite None
// Check user is logged in if(!isset($_COOKIE['user_extension_key'])){
// We do this manually, using check_login will break CORS due to the redirect.
if(!(isset($_SESSION['logged']))){
$data['found'] = "FALSE"; $data['found'] = "FALSE";
$data['message'] = "ITFlow - You are not logged into ITFlow."; $data['message'] = "ITFlow - You are not logged into ITFlow, do not have, or did not send the correct extension key cookie.";
echo(json_encode($data)); echo(json_encode($data));
exit(); exit();
} }
// User is logged in! // User has a cookie set with that name, let's verify it.
$user_extension_key = $_COOKIE['user_extension_key'];
// Get user info: // Check the key isn't empty, less than 17 characters or the word "disabled".
$session_user_id = $_SESSION['user_id']; if(empty($user_extension_key) OR strlen($user_extension_key) < 17 OR strtolower($user_extension_key) == "disabled"){
$data['found'] = "FALSE";
$data['message'] = "ITFlow - You are not logged into ITFlow, do not have, or did not send the correct extension key cookie.";
echo(json_encode($data));
exit();
}
$sql = mysqli_query($mysqli,"SELECT * FROM users, user_settings WHERE users.user_id = user_settings.user_id AND users.user_id = $session_user_id");
$row = mysqli_fetch_array($sql); // Cookie seems valid, see if we can associate it with a user ID
$user_extension_key = mysqli_real_escape_string($mysqli, $_COOKIE['user_extension_key']);
$auth_user = mysqli_query($mysqli, "SELECT * FROM users LEFT JOIN user_settings on users.user_id = user_settings.user_id WHERE user_extension_key = '$user_extension_key' LIMIT 1");
$row = mysqli_fetch_array($auth_user);
// Check SQL query state
if(mysqli_num_rows($auth_user) < 1 OR !$auth_user){
$data['found'] = "FALSE";
$data['message'] = "ITFlow - You are not logged into ITFlow, do not have, or did not send the correct extension key cookie.";
echo(json_encode($data));
exit();
}
// Sanity check
if(hash('sha256', $row['user_extension_key']) !== hash('sha256', $_COOKIE['user_extension_key'])){
$data['found'] = "FALSE";
$data['message'] = "ITFlow - Validation failed.";
echo(json_encode($data));
exit();
}
// Success - validated user cookie
// Get the current session from the database so we can decrypt passwords
session_id($row['user_php_session']);
session_start();
$session_user_id = $row['user_id'];
$session_name = $row['user_name']; $session_name = $row['user_name'];
$session_email = $row['user_email']; $session_email = $row['user_email'];
$session_avatar = $row['user_avatar']; $session_avatar = $row['user_avatar'];
@@ -54,7 +84,7 @@ if($session_user_role == 6){
$session_user_role_display = "Accountant"; $session_user_role_display = "Accountant";
} }
// Check user access level // Check user access level is correct
if($session_user_role < 4){ if($session_user_role < 4){
$data['found'] = "FALSE"; $data['found'] = "FALSE";
$data['message'] = "ITFlow - You are not authorised to use this application."; $data['message'] = "ITFlow - You are not authorised to use this application.";
@@ -62,6 +92,8 @@ if($session_user_role < 4){
exit(); exit();
} }
// Lets go!
if(isset($_GET['host'])){ if(isset($_GET['host'])){
if(!empty($_GET['host'])){ if(!empty($_GET['host'])){
@@ -75,6 +107,11 @@ if(isset($_GET['host'])){
$data['username'] = htmlentities($row['login_username']); $data['username'] = htmlentities($row['login_username']);
$data['password'] = decryptLoginEntry($row['login_password']); $data['password'] = decryptLoginEntry($row['login_password']);
echo json_encode($data); echo json_encode($data);
// Logging
$login_name = mysqli_real_escape_string($mysqli, $row['login_name']);
mysqli_query($mysqli, "INSERT INTO logs SET log_type = 'Login', log_action = 'Extension requested', log_description = '$login_name' , log_created_at = NOW(), company_id = $session_company_id, log_user_id = $session_user_id");
} }
} }
} }