52 lines
2.1 KiB
PHP
52 lines
2.1 KiB
PHP
<?php
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//permitted chars for password salt
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$permitted_chars = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ&/()[]$:?_';
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//generates password salt
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function generate_salt($input, $strength = 5) {
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$input_length = strlen($input);
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$random_string = '';
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for($i = 0; $i < $strength; $i++) {
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$random_character = $input[random_int(0, $input_length - 1)];
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$random_string .= $random_character;
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}
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return $random_string;
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}
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$random_salt = generate_salt($permitted_chars);
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$password_hash_method = "sha256";
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$pdo = new PDO('mysql:host=localhost;dbname=web', 'webstuff', 'Schei// auf Pa$$w0rter!');
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//TODO: Add check for existing users
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//$query = "SELECT name FROM users WHERE name = :username;"; ← Do NOT use.
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//error indicator for later use
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$error = false;
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$error_message = "";
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if ($_POST['username']=='' || $_POST['password']=='' || $_POST['password_confirmation']=='') {
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$error = true;
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//TODO: Return redirect header, change index to php for handling highlighting of affected boxes
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$error_message = "Error: Not all values populated.";
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}
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if ($_POST['password'] != $_POST['password_confirmation']) {
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$error = true;
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//TODO: see above
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$error_message = "Error: How much does password?"; //Sorry, I *had* to do it.
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}
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//run only after basic user sanity checks
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if (!$error) {
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//add user
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$statement = $pdo->prepare('INSERT INTO users (name, authentication_string, authentication_salt, authentication_algorithm) VALUES (:name, :authentication_string, :authentication_salt, :authentication_algorithm)');
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//$result = $statement->execute(array('name' => $_POST['name'], 'authentication_string' => hash($password_hash_method, $_POST['password'] . $random_salt), 'authentication_salt' => $random_salt, 'authentication_algorithm' => $password_hash_method));
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if (!$result) {
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$error_message = "Error: SQL error.\n" . $statement->queryString . "\n" . $statement->errorInfo()[2];
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}
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}
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//You know, just in case... (To be removed after proper error handling is in place)
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//echo $error_message;
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?>
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</form>
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</body>
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</html>
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