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Prevent duplicate POST actions on page reload

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Terranom674
2026-08-18 08:14:47 +02:00
parent 0f05760735
commit bfda6680f8
1 changed files with 40 additions and 0 deletions
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40
admin.php
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@@ -15,6 +15,32 @@ $errors = array();
$self_update_override = null; $self_update_override = null;
$nc_piwigo_api_test = null; $nc_piwigo_api_test = null;
// Post/Redirect/Get: never leave a mutating Bratonien Tools action as the
// browser's current request. Otherwise a normal reload can submit the same
// action again (for example an update, delete or create action).
if ($_SERVER['REQUEST_METHOD'] !== 'POST' && !empty($_SESSION['bratonien_tools_flash']) && is_array($_SESSION['bratonien_tools_flash']))
{
$flash = $_SESSION['bratonien_tools_flash'];
unset($_SESSION['bratonien_tools_flash']);
if (!empty($flash['messages']) && is_array($flash['messages']))
{
$messages = array_values($flash['messages']);
}
if (!empty($flash['errors']) && is_array($flash['errors']))
{
$errors = array_values($flash['errors']);
}
if (!empty($flash['self_update']) && is_array($flash['self_update']))
{
$self_update_override = $flash['self_update'];
}
if (!empty($flash['nc_piwigo_api_test']) && is_array($flash['nc_piwigo_api_test']))
{
$nc_piwigo_api_test = $flash['nc_piwigo_api_test'];
}
}
if ( if (
$_SERVER['REQUEST_METHOD'] === 'POST' $_SERVER['REQUEST_METHOD'] === 'POST'
&& empty($_POST) && empty($_POST)
@@ -59,6 +85,20 @@ if ($_SERVER['REQUEST_METHOD'] === 'POST' && isset($_POST['bratonien_tool']))
$errors[] = $e->getMessage(); $errors[] = $e->getMessage();
} }
} }
$_SESSION['bratonien_tools_flash'] = array(
'messages' => $messages,
'errors' => $errors,
'self_update' => $self_update_override,
'nc_piwigo_api_test' => $nc_piwigo_api_test,
);
$redirect_url = get_root_url().'admin.php?page=plugin-'.BRATONIEN_TOOLS_ID;
if (!headers_sent())
{
header('Location: '.$redirect_url, true, 303);
exit;
}
} }
$watermark = bratonien_tools_get_watermark_data(); $watermark = bratonien_tools_get_watermark_data();