Dette svar er til hashing, password_hash() , og password_verify() . Til både mysqli og pdo. Linket nederst har yderligere links og noget sprog om salte og lignende.
Det er afgørende ikke at bruge brugerleveret data direkte med markeringer og indsættelser. Bind i stedet parametre og kald forberedte erklæringer til Undgå sql-injektionsangreb . Adgangskoder bør aldrig gemmes i den klare (klartekst) i databaser. De skal snarere sendes gennem envejs-hash.
Bemærk også. Dette viser registrerings-hash og login-bekræftelse. Det er ikke fuldt ud funktionalitet Jeg forsøger at satse på codecanyon for ti dollars ... sådan at det viser en omregistrering af en e-mail-adresse (login) allerede eksisterer, gør opdateringer, vel at mærke. I så fald vil indsættelsen simpelthen mislykkes på grund af den unikke nøgle, der er sat på plads i db. Jeg overlader det til dig, læseren, at foretage opslag og sige 'e-mail allerede registreret'.
Skema
CREATE TABLE `user_accounts2` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`email` varchar(100) NOT NULL,
`password` varchar(255) NOT NULL,
PRIMARY KEY (`id`),
unique key(email) -- that better be the case
) ENGINE=InnoDB;
Efter at have kørt gennem register.php og gemt en bruger, kan dataene se sådan ud:
select * from user_accounts2;
+----+-----------+--------------------------------------------------------------+
| id | email | password |
+----+-----------+--------------------------------------------------------------+
| 1 | [email protected] | $2y$10$U6.WR.tiOIYNGDWddfT7kevJU8uiz8KAkdxXpda9e1xuplhC/eTJS |
+----+-----------+--------------------------------------------------------------+
mysqli sektion først
register.php
<?php
mysqli_report(MYSQLI_REPORT_ALL);
error_reporting(E_ALL); // report all PHP errors
ini_set("display_errors", 1); // display them
session_start();
if(isset($_SESSION['userid'])!="") {
// you are already logged in as session has been set
header("Location: safe.php"); // note that this re-direct will at the top of that page
// ... and there to verify the session state so no tricks can be performed
// no tricks and gimmicks
}
if(isset($_POST['register'])) {
$email = $_POST['email'];
$ctPassword = $_POST['password']; // cleartext password from user
$hp=password_hash($ctPassword,PASSWORD_DEFAULT); // hashed password using cleartext one
// pretend the following is locked in a vault and loaded but hard coded here
$host="yourhostname";
$dbname="dbname";
$user="dbuser";
$pwd="password";
$port=3306; // comes along for the ride so I don't need to look up param order below
// end pretend
try {
$mysqli= new mysqli($host, $user, $pwd, $dbname,$port);
if ($mysqli->connect_error) {
die('Connect Error (' . $mysqli->connect_errno . ') ' . $mysqli->connect_error);
}
//echo "I am connected and feel happy.<br/>";
$query = "INSERT INTO user_accounts2(email,password) VALUES (?,?)";
$stmt = $mysqli->prepare($query);
// note the 2 s's below, s is for string
$stmt->bind_param("ss", $email,$hp); // never ever use non-sanitized user supplied data. Bind it
$stmt->execute();
// password is saved as hashed, will be verified on login page with password_verify()
$iLastInsertId=$mysqli->insert_id; // do something special with this (or not)
// redirect to some login page (for now you just sit here)
$stmt->close();
$mysqli->close();
} catch (mysqli_sql_exception $e) {
throw $e;
}
}
?>
<html>
<head>
<title>Register new user</title>
</head>
<body>
<div id="reg-form">
<form method="post">
<table>
<tr>
<td><input type="email" name="email" placeholder="Email" required /></td>
</tr>
<tr>
<td><input type="password" name="password" placeholder="Password" required /></td>
</tr>
<tr>
<td><button type="submit" name="register">Register</button></td>
</tr>
<tr>
<td><a href="index.php">Normal Login In Here</a></td>
</tr>
</table>
</form>
</div>
</body>
</html>
login.php
<?php
mysqli_report(MYSQLI_REPORT_ALL);
error_reporting(E_ALL); // report all PHP errors
ini_set("display_errors", 1); // display them
session_start();
if(isset($_SESSION['userid'])!="") {
// you are already logged in as session has been set
header("Location: safe.php"); // note that this re-direct will at the top of that page
// ... and there to verify the session state so no tricks can be performed
// no tricks and gimmicks
}
if(isset($_POST['login'])) {
$email = $_POST['email'];
$ctPassword = $_POST['password']; // cleartext password from user
// pretend the following is locked in a vault and loaded but hard coded here
$host="yourhostname";
$dbname="dbname";
$user="dbuser";
$pwd="password";
$port=3306; // comes along for the ride so I don't need to look up param order below
// end pretend
try {
$mysqli= new mysqli($host, $user, $pwd, $dbname,$port);
if ($mysqli->connect_error) {
die('Connect Error (' . $mysqli->connect_errno . ') ' . $mysqli->connect_error);
}
//echo "I am connected and feel happy.<br/>";
$query = "select id,email,password from user_accounts2 where email=?";
$stmt = $mysqli->prepare($query);
// note the "s" below, s is for string
$stmt->bind_param("s", $email); // never ever use non-sanitized user supplied data. Bind it
$stmt->execute();
$result = $stmt->get_result();
if ($row = $result->fetch_array(MYSQLI_ASSOC)) {
$dbHashedPassword=$row['password'];
if (password_verify($ctPassword,$dbHashedPassword)) {
echo "right, userid=";
$_SESSION['userid']=$row['id'];
echo $_SESSION['userid'];
// redirect to safe.php (note safeguards verbiage at top of this file about it)
}
else {
echo "wrong";
// could be overkill here, but in logout.php
// clear the $_SESSION['userid']
}
}
else {
echo 'no such record';
}
// remember, there is no iterating through rows, since there is 1 or 0 (email has a unique key)
// also, hashes are one-way functions in the db. Once you hash and do the insert
// there is pretty much no coming back to cleartext from the db with it. you just VERIFY it
$stmt->close();
$mysqli->close();
} catch (mysqli_sql_exception $e) {
throw $e;
}
}
?>
<html>
<head>
<title>Login</title>
</head>
<body>
<div id="reg-form">
<form method="post">
<table>
<tr>
<td><input type="email" name="email" placeholder="Email" required /></td>
</tr>
<tr>
<td><input type="password" name="password" placeholder="Password" required /></td>
</tr>
<tr>
<td><button type="submit" name="login">Login</button></td>
</tr>
</table>
</form>
</div>
</body>
</html>
pdo sektion nedenfor
Når jeg har tid, sandsynligvis i morgen, men indtil videre henviser jeg til dette mit svar .