[mapserver-dev] Problem in mapscript: from SLD to map ExternalGraphic SVG not supported

[thomas.bonfort at gmail.com]

Luigi,

* loading of file:// protocols through curl was disabled with https://github.com/mapserver/mapserver/pull/4703 for security purposes. It probably makes sense to disable loading of arbitrary files from the filesystem to avoid leaking information about the server.
* directly loading SVG urls or files in msAddImageSymbol would be a feasible enhancement, you can open a ticket for that, or even better submit a patch.

-- 
thomas

On 7 janv. 2014, at 19:58, Luigi Pirelli <luigi.pirelli at faunalia.it> wrote:

> Hi
> 
> I've to show a problem using mapscript... I'm using mapscript creating map file starting form a SLD (calling applySLD) generated by QGIS (rt_mapserver_exporter plugin)
> 
> a SLD file can be found here: https://gist.github.com/luipir/8304386
> 
> it has been generated creating a simple point shape file and applying external SVG files in QGIS... I can provide all test files and qgis project and qml style
> 
> None of external SVGs are exported in the map file... reading the mapscript code i can see:
> 
> mapogcsld.c:2075 msSLDParseExternalGraphic(...)
> manage external link only if mapserver is compiled with CURL (cmake default is NO)
> if CURL is available then it manage only this formats:
> 
>       (strcasecmp(pszFormat, "GIF") == 0 ||
>        strcasecmp(pszFormat, "image/gif") == 0 ||
>        strcasecmp(pszFormat, "PNG") == 0 ||
>        strcasecmp(pszFormat, "image/png") == 0)) {
> 
> then call msAddImageSymbol
> and mapsymbol.c:364 - msAddImageSymbol
> 
> manage only http
> 
> If I try to "force" it strcasecmp(pszFormat, "image/svg+xml") == 0 in msSLDParseExternalGraphic
> and strncasecmp(filename, "file", 4) == 0 in msAddImageSymbol
> 
> the call msHTTPGetFile return this error message:
> 
> MapServerError?: msHTTPExecuteRequests(): HTTP request error. HTTP: request failed with curl error code 1 (Protocol file not supported or disabled in libcurl) for file:///Antica-dir-scorr-fluv-2020.svg
> 
> but CURL manage file:/// protocol... I can download it (adding complete path)
> 
> so the QUESTION is
> 
> 1) there is a reason that svg and file: protocol are not implemented?
> 2) if it's a "bug" what whould be a good solution?
>  
> thank you for your help
> 
> Luigi Pirelli (luigi.pirelli at faunalia.it - luipir at gmail.com)
> 
> p.s. i'm using 6.4 master code 
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