This is an HTTP question (the protocol, not HTML the document format).

Yes this is what I meant but the mail was sent.

And you solved your problem well, I never tried it like that myself ;-)

I would not write it differently.

Like the comment says, it will only work with those types recognised by ImageReadWriter, which are the most common ones, JPG, GIF and PNG.

Image/* is a wildcard matching any image type, and there are many, many more. 

The current mechanism in Zinc with #accept: and #enforceAcceptContentType: true assumes a singular 'Accept' header. But indeed, technically, it is possible to specify more than one.

For example, this also works:

ZnClient new
 url: 'http://pharo.org/files/pharo.png';
 headerAt: 'Accept' add: ZnMimeType imageGif asString;
 headerAt: 'Accept' add: ZnMimeType imagePng asString;
 headerAt: 'Accept' add: ZnMimeType imageJpeg asString;
 contentReader: [ :entity | ImageReadWriter formFromStream: entity readStream ];
 get.


Ah this would be better for me because like that I can probably control which exception is raised.
Because we do not support image/svg

But I have to think a bit about this issue.

Another approach is to use the extension of the URL.

ZnMimeType forFilenameExtension: 'http://pharo.org/files/pharo.png' asUrl file asFileReference extension.

It all depends at what level you want to tell your user they tried getting an unsupported file type.

Broad :) but soon you will be my user and you will have the right to complain :)



Sven

S.


--------------------------------------------
St��phane Ducasse
http://stephane.ducasse.free.fr / http://www.pharo.org 
03 59 35 87 52
Assistant: Aurore Dalle 
FAX 03 59 57 78 50
TEL 03 59 35 86 16
S. Ducasse - Inria
40, avenue Halley, 
Parc Scientifique de la Haute Borne, B��t.A, Park Plaza
Villeneuve d'Ascq 59650
France

--------------------------------------------
St��phane Ducasse
03 59 35 87 52
Assistant: Aurore Dalle 
FAX 03 59 57 78 50
TEL 03 59 35 86 16
S. Ducasse - Inria
40, avenue Halley, 
Parc Scientifique de la Haute Borne, B��t.A, Park Plaza
Villeneuve d'Ascq 59650
France