[mapserver-dev] Can msIO_stripStdoutBufferContentHeaders() return headers and be available through MapScript?

[Daniel Morissette]

Maybe we couold add a new ms_ioExtractStdoutBufferHeaders() that would 
extract and return all headers in an array?


On 11-06-13 11:59 AM, Stephan Meißl wrote:
> Jean-François,
>
> in 6.0 the exact function you propose was added (see [1]). It doesn't
> return the headers though. I haven't tested the function in PHP
> MapScript but it works with Python.
>
> cu
> Stephan
>
> [1] http://mapserver.org/mapscript/mapscript.html#mapscript-functions
>
>
> On Mon, 2011-06-13 at 15:27 +0200, Jean-François Gigand wrote:
>> Hi,
>>
>> I use PHP MapScript and handle WxS requests through the "MapScript
>> Wrappers for WxS Services", which work fine.
>>
>> Since 6.0 I also use OGR output (ZIP of CSV/Shapefiles), which also
>> works fine (much thanks, 6.0 kicks ass!).
>>
>> Through {,Fast}Cgi, everything is fine.
>> But, through (PHP) MapScript, when the WxS request outputs a
>> "Content-Disposition" header, the ms_ioStripStdoutBufferContentType()
>> function is of no use, as the Content-Type header is not the first
>> one, and no MapScript method would extract the "Content-Disposition"
>> header anyway.
>>
>> To my guess, the perfect solution would be a
>> msIO_stripStdoutBufferContentHeaders() function which:
>> - would return the headers, not just strip them off, for example
>> returning a<char **>
>> - would be available through MapScript
>>
>> If you confirm the need for this solution, I can develop it and send you a patch
>> (just advise me about the function name and prototype (<char***>  param
>> or<char**>  return?).
>>
>> So far, I have done this through PHP, see the function below:
>>
>>    /**
>>     * Strip off Content-* headers from buffer and set them on response object
>>     *
>>     * @param $buffer  string     Ref to buffer string, which may
>> include Content-* headers
>>     * @param $reponse Response   Framework-dependant response object to
>> add the headers to
>>     */
>>    function extractContentHeaders(&$buffer, Response $response)
>>    {
>>      $length = -1;
>>      $regex = "/^(Content-[a-zA-Z-]+): ([a-zA-Z0-9.\/=?!_; -]+)\n/";
>>      while (strlen($buffer) != $length) {
>>        $length = strlen($buffer);
>>        $cb = function($m) use ($response) {
>>          $response->headers->set($m[1], $m[2]);
>>          return '';
>>        };
>>        $buffer = preg_replace_callback($regex,$cb, $buffer);
>>      }
>>    }
>>
>>
>> Best regards,
>>
>> JF Gigand
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>
>
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-- 
Daniel Morissette
http://www.mapgears.com/
Provider of Professional MapServer Support since 2000