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manage_users.php
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manage_users.php
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<?php
require_once('session.php');
require_once('auth.php');
require_once('database.php');
if ($_SERVER['REQUEST_METHOD'] == 'POST' && isset($_GET['action'], $_POST['_csrf_token']) && $_POST['_csrf_token'] === $_SESSION['csrf_token']) {
switch ($_GET['action']) {
case 'user_create':
if (isset($_POST['name'], $_POST['password1'], $_POST['password2'])) {
if ($_POST['password1'] === $_POST['password2']) {
try {
database_query('INSERT INTO "users" ("name", "password") VALUES (?, ?);', [$_POST['name'], password_hash($_POST['password1'], PASSWORD_DEFAULT)]);
} catch (Exception $e) {
$_SESSION['user_admin_error'] = 'An error occurred creating the user. (Check that a user with the same name does not already exist)';
}
} else {
$_SESSION['user_admin_error'] = 'Passwords don\'t match.';
}
} else {
http_response_code(400);
}
break;
case 'user_rename':
if (isset($_GET['id'], $_POST['name'])) {
try {
database_query('UPDATE "users" SET "name" = ? WHERE "id" = ?;', [$_POST['name'], (int)$_GET['id']]);
} catch (Exception $e) {
$_SESSION['user_admin_error'] = 'An error occurred renaming the user. (Check that a user with the same name does not already exist)';
}
} else {
http_response_code(400);
}
break;
case 'user_change_password':
if (isset($_GET['id'], $_POST['password1'], $_POST['password2'])) {
if ($_POST['password1'] === $_POST['password2']) {
try {
database_query('UPDATE "users" SET "password" = ? WHERE "id" = ?;', [password_hash($_POST['password1'], PASSWORD_DEFAULT), (int)$_GET['id']]);
} catch (Exception $e) {
$_SESSION['user_admin_error'] = 'An error occurred changing the password.';
}
} else {
$_SESSION['user_admin_error'] = 'Passwords don\'t match.';
}
} else {
http_response_code(400);
}
break;
case 'user_delete':
if (isset($_GET['id'])) {
try {
database_query('DELETE FROM "users" WHERE "id" = ?;', [(int)$_GET['id']]);
} catch (Exception $e) {
$_SESSION['user_admin_error'] = 'An error occurred deleting the user.';
}
} else {
http_response_code(400);
}
break;
default:
$_SESSION['user_admin_error'] = 'An error occurred.';
http_response_code(400);
exit();
}
header('Location: manage_users.php');
exit();
}
require_once('template.php');
template_header('Manage Users');
if (isset($_SESSION['user_admin_error'])) {
echo '<script>alert(';
echo json_encode($_SESSION['user_admin_error']);
echo ');</script>';
unset($_SESSION['user_admin_error']);
}
echo '<h1>Create User</h1>';
echo '<form action="manage_users.php?action=user_create" method="post">';
echo '<input name="name" value="" type="text" placeholder="Username" maxlength="250" required="required" />';
echo '<input name="password1" value="" type="password" placeholder="Password" maxlength="250" />';
echo '<input name="password2" value="" type="password" placeholder="Confirm Password" maxlength="250" />';
echo '<input type="submit" value="Create" />';
echo '<input name="_csrf_token" value="' . htmlescape($_SESSION['csrf_token']) . '" type="hidden" />';
echo '</form>';
echo '<h1>Manage Users</h1>';
echo '<table><thead><tr><th>Username</th><th>Password</th><th></th></tr></thead><tbody>';
$users = database_query('SELECT "id", "name" FROM "users" ORDER BY "name";');
usort($users, function ($a, $b) {
return strnatcasecmp($a['name'], $b['name']);
});
foreach ($users as $user) {
echo '<tr>';
echo '<td>';
echo '<form action="manage_users.php?action=user_rename&id=' . htmlescape(urlencode($user['id'])) . '" method="post">';
echo '<input name="name" value="' . htmlescape($user['name']) . '" type="text" placeholder="Username" maxlength="250" required="required" />';
echo '<input type="submit" value="Rename" />';
echo '<input name="_csrf_token" value="' . htmlescape($_SESSION['csrf_token']) . '" type="hidden" />';
echo '</form>';
echo '</td>';
echo '<td>';
echo '<form action="manage_users.php?action=user_change_password&id=' . htmlescape(urlencode($user['id'])) . '" method="post">';
echo '<input name="password1" value="" type="password" placeholder="Password" maxlength="250" />';
echo '<input name="password2" value="" type="password" placeholder="Confirm Password" maxlength="250" />';
echo '<input type="submit" value="Change Password" data-name="' . htmlescape($user['name']) . '" onclick="return confirm("Really change the password for \\"" + $(this).data("name") + "\\"?");" />';
echo '<input name="_csrf_token" value="' . htmlescape($_SESSION['csrf_token']) . '" type="hidden" />';
echo '</form>';
echo '</td>';
echo '<td>';
echo '<form action="manage_users.php?action=user_delete&id=' . htmlescape(urlencode($user['id'])) . '" method="post">';
echo '<input type="submit" value="Delete" data-name="' . htmlescape($user['name']) . '" onclick="return confirm("Really delete the user \\"" + $(this).data("name") + "\\"?");" ';
if ((int)$user['id'] === $_SESSION['user_id']) {
echo 'disabled="disabled" title="You cannot delete your own account"';
}
echo '/>';
echo '<input name="_csrf_token" value="' . htmlescape($_SESSION['csrf_token']) . '" type="hidden" />';
echo '</form>';
echo '</td>';
echo '</tr>';
}
echo '</tbody></table>';
template_footer();