Maintaining Sessions and Authentication in HTML5/Flash Uploader PHP
If you are going to utilize Flash Uploader in non-Internet Explorer browsers (Firefox, Safari, and etc.), you should take care about keeping your session and authentication cookies saved if they are used. The fact is that Flash Uploader does not send cookies in output requests in non-Internet Explorer browsers by default and, therefore, session and authentication tickets are lost during the upload. To work around this problem you can employ special facilities provided either by HTML5/Flash Uploader PHP or HTML5/Flash Uploader JavaScript. Let us consider how to use them.
Using HTML5/Flash Uploader PHP
If you use HTML5/Flash Uploader PHP, session and authentication information will be automatically passed to the upload request. If you are unfamiliar with HTML5/Flash Uploader PHP, please, see the Quick Start with HTML5/Flash Uploader PHP topic.
To restore session server-side you need to use restoreSession(), like follows:
require_once 'ImageUploaderFlashPHP/UploaderUtils.class.php';
if (UploaderUtils::restoreSession()) {
//Save files
}
else {
//Handle the error
}
Using HTML5/Flash Uploader JavaScript API
If you prefer not to use HTML5/Flash Uploader PHP, then you should add cookies to the upload request manually via the
HTML5/Flash Uploader JavaScript. To do this, use the metadata.addCustomField(String, String, Boolean)
method which accepts cookie in the following format: "cookieName=cookieValue". The most convenient place to call this method is the
BeforeUpload event handler, because this event fires when the upload is about to be started.
function beforeUploadHandler(){
var fu = $au.imageUploaderFlash('Uploader1');
fu.metadata().addCustomField('PHPSESSID','<?=$_COOKIE["PHPSESSID"]?>',true);
};
var fu = $au.imageUploaderFlash({
id: 'Uploader1',
events: {beforeUpload: beforeUploadHandler},
});
fu.writeHtml();
To restore session server-side you need to use restoreSession(), like follows:
require_once 'ImageUploaderFlashPHP/UploaderUtils.class.php';
if (UploaderUtils::restoreSession()) {
//Save files
}
else {
//Handle the error
}