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googlelogin.php
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/
googlelogin.php
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<?php
require 'db_connect.inc.php';
$connect = mysqli_connect(DB_HOST, DB_USERNAME, DB_PASSWORD, DB_NAME);
if (mysqli_connect_errno()) {
showJson(10, "Cannot connect with MySql :" . mysqli_connect_errno());
mysqli_close($connect);
} else {
//Successfully connected
if (isset($_POST['name']) && isset($_POST['email'])) {
$name = $_POST['name'];
$email = $_POST['email'];
if (!empty($email)) {
googleLogin($connect, $name, $email);
} else {
showJson(4, "Fields cannot be empty");
}
}
mysqli_close($connect);
}
function googleLogin($connect, $name, $email)
{
$id = getUserId($connect, $email);
if ($id > 0) {
updateLastLogin($connect, $id);
$response = array();
$response['status'] = 1;
$response['message'] = "Successfully logged in";
$response['user_id'] = $id;
echo json_encode($response);
} else {
$code = createAccount($connect, $name, $email);
if ($code == 1) {
$response = array();
$response['status'] = 5;
$response['message'] = "Account Created Successfully";
$response['user_id'] = getUserId($connect, $email);
echo json_encode($response);
} elseif ($code == 3) {
showJson(3, "Email already registered\nLogin using email and password");
} else {
showJson(0, "Oops!...Details cannot be added into Database.Try again later.");
}
}
}
function updateLastLogin($connect, $id)
{
$query = "UPDATE `users` SET `last_login`=CURRENT_TIMESTAMP WHERE `id`='$id'";
mysqli_query($connect, $query);
}
function getUserId($connect, $email)
{
$query = "SELECT * FROM `users` WHERE `email`='$email' AND `is_google`='1' LIMIT 1";
$query_run = mysqli_query($connect, $query);
if ($result = mysqli_fetch_assoc($query_run)) {
$user_id = $result['id'];
return $user_id;
} else {
return 0;
}
}
function createAccount($connect, $name = "", $email)
{
if (getUserId($connect, $email) > 0) {
return 3;
} else {
$query = "INSERT INTO `users` (`id`, `name`, `password`, `email`,`is_google`,`last_login`) VALUES (NULL,'$name',NULL,'$email',1,CURRENT_TIMESTAMP)";
$query_run = mysqli_query($connect, $query);
if ($query_run) {
return 1;
} else {
return 0;
}
}
}
function showJson($status, $message)
{
$response = array();
$response['status'] = $status;
$response['message'] = $message;
echo json_encode($response);
}
?>
<form action="googlelogin.php" method="post">
<fieldset>
<legend>Google Login</legend>
<label for="name">Name</label><br><input type="text" name="name" maxlength="80"><br><br>
<label for="email">Email</label><br><input type="email" name="email" maxlength="40"><br><br>
<input type="Submit" name="submit" value="Login">
</fieldset>
</form>