Re: SVG to PNG

PS Am I missing something: the mime type of svg+xml

STATICM doesnt use the mime type svg+xml, but only svg and so
BlobToImage->GetMagickInfo->OpenModule->register_fn
 is never called

A bug or what did I miss _?


Am Fr., 13. Nov. 2020 um 11:50 Uhr schrieb Pro Turm <[email protected]>:

> HasXML
>
> >> 1) Are there any specific APIs concerning SVG? I couldnt grub any
> specific
> >> documentation page concerning svg.
> >
> >There are no specific APIs.  SVG is just an input file format.
>
> The documentation (http://www.graphicsmagick.org/formats.html) says "*Requires
> libxml2 <http://xmlsoft.org/> and freetype2 <http://www.freetype.org/>*".
> In svg.c there is the  #if defined(HasXML)
> which points to # include <libxml/...h>, which is suppose to to be the
> libxml2-dev ? What is the purpose of the folder *libxml* in GM ? Is it
> supposed to be used in this context?
>
> Regards,
>
> Am Do., 12. Nov. 2020 um 15:19 Uhr schrieb Bob Friesenhahn <
> [email protected]>:
>
>> On Thu, 12 Nov 2020, Pro Turm wrote:
>>
>> > Thanks. Two questions more:
>> > 1) Are there any specific APIs concerning SVG? I couldnt grub any
>> specific
>> > documentation page concerning svg.
>>
>> There are no specific APIs.  SVG is just an input file format.
>>
>> > 2) What is the way to reject the dangerous parts of the svgs or they are
>> > just ignored by GM ?
>>
>> Attempts to read local files are already rejected.  The FTP and HTTP
>> support is marked at an "UNSTABLE" level of coder stability so setting
>> the environment variable MAGICK_CODER_STABILITY to STABLE will block
>> this support.
>>
>> If you are writing a C/C++ program which uses the GraphicsMagick
>> library, then it is good to know that the header file
>> magick/confirm_access.h provides a way for the program to register a
>> callback function which will be called to allow the program to "bless"
>> or "reject" each file, URL, or program execution access.  This
>> provides total control and is also a useful way to observe what is
>> going on.  The relevent API definitions are:
>>
>>    typedef enum
>>      {
>>        UndefinedConfirmAccessMode,
>>        FileExecuteConfirmAccessMode, /* Path is to be opened for
>> execution */
>>        FileReadConfirmAccessMode,    /* Path is to be opened for read */
>>        FileWriteConfirmAccessMode,   /* Path is to be opened for write */
>>        URLGetFTPConfirmAccessMode,   /* ftp:// URL get */
>>        URLGetFileConfirmAccessMode,  /* file:// URL get */
>>        URLGetHTTPConfirmAccessMode   /* http:// URL get */
>>      } ConfirmAccessMode;
>>
>>    typedef MagickPassFail
>>    (*ConfirmAccessHandler)(const ConfirmAccessMode mode,
>>                            const char *path,
>>                            ExceptionInfo *exception);
>>
>>    extern MagickExport ConfirmAccessHandler
>>    MagickSetConfirmAccessHandler(ConfirmAccessHandler handler);
>>
>> In addition to the above, resource limits may be set to limit resource
>> consumption such as the size of a generated image, or the amount of
>> allocated memory.
>>
>> Bob
>> --
>> Bob Friesenhahn
>> [email protected],
>> http://www.simplesystems.org/users/bfriesen/
>> GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/
>> Public Key,
>> http://www.simplesystems.org/users/bfriesen/public-key.txt
>>
>>
>> _______________________________________________
>> Graphicsmagick-help mailing list
>> [email protected]
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>>
>

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