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I found the solution to my problem using binaryinputstream and
binaryoutputstream components.
var channel=request.channel;
var stream=channel.open();
var fos =
Components.classes["@mozilla.org/network/file-output-stream;1"].
createInstance(Components.interfaces.nsIFileOutputStream);
var
length=request.getResponseHeader("content-length");
fos.init(file,0x02 | 0x08 | 0x20, 0644, 0);
var bistream =
Components.classes["@mozilla.org/binaryinputstream;1"].
createInstance(Components.interfaces.nsIBinaryInputStream);
bistream.setInputStream(stream);
var bostream =
Components.classes["@mozilla.org/binaryoutputstream;1"].
createInstance(Components.interfaces.nsIBinaryOutputStream);
bostream.setOutputStream(fos);
var n=0;
length=parseInt(length);
while(n<length) {
var
ba=bistream.readByteArray(bistream.available());
bostream.writeByteArray(ba,ba.length);
n+=ba.length;
}
fos.flush();
fos.close();
stream.close();
Michel Gutierrez wrote:
>
> hi,
>
> in an extension implemented in javascript, i would like to use the
> nsIXmlHttpRequest object to query data from an url. based on the
> returned content-type, i would like to either parse the returned file
> and do some stuff, or save the binary data into a file.
>
> i cannot find a way to save the binary data. the
> @mozilla.org/network/file-output-stream;1 component seems not to
> implement writeFrom method and i'm running out of ideas.
>
> does anybody have some trick for doing so ?
>
> thanks,
> /mig
>
>
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=/aSh
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