[TYPO3-core] RFC: Bugfix #10212: Missing files in sysext install

[Steffen Kamper]

Hi,

please test attached patch as addition for IE. FF seems to have no 
problems and does know that Request shouldn't be cached, IE knows it 
better - ever the same ...

vg Steffen

Steffen Müller schrieb:
> Hi.
> 
> On 17.02.2009 16:56 Marcus Krause wrote:
>> The trunk encryption key polling is different from that in the branches.
>> I'm not sure if it does matter at all for the cache thing, but the trunk
>> one evaluates cmd-parameter before whereas the branches are always
>> sending encryption key.
>> By that, in trunk the class can handle further ajax calls.
>>
> 
> Thanks for clarification.
> 
>> As I said, I'd stay at the GET request and would rather see proper cache
>> control headers set in the AJAX class.
>>
> 
> Something like the above example? It works on IE. But once again unsure
> about this solution, since I'm not familiar with processing of eiD. Is
> there a commen place, where HTTP header are set for eiD scripts?
> 
> 
> Index: class.tx_install_ajax.php
> ===================================================================
> --- class.tx_install_ajax.php	(revision 5024)
> +++ class.tx_install_ajax.php	(working copy)
> @@ -94,7 +94,7 @@
>  		switch ($this->cmd) {
>  			case 'encryptionKey':
>  			default:
> -				$this->content = $this->createEncryptionKey();
> +				$this->content = $this->createCachingHeaders().
> $this->createEncryptionKey();
>  				break;
>  		}
>  	}
> @@ -119,6 +119,18 @@
>  		$bytes = t3lib_div::generateRandomBytes($keyLength);
>  		return substr(bin2hex($bytes), -96);
>  	}
> +
> +	/**
> +	 * Generates HTTP caching headers to avoid browser caching
> +	 *
> +	 * @return	void
> +	 */
> +	function createCachingHeaders()	{
> +		header('Expires: Mon, 26 Jul 1997 05:00:00 GMT');
> +		header('Last-Modified: ' . gmdate('D, d M Y H:i:s') . 'GMT');
> +		header('Cache-Control: no-cache, must-revalidate');
> +		header('Pragma: no-cache');
> +	}
>  }
> 
>  // Make instance:
> 

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