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Re: Looking for best option



Bruce,

> THE <BASE64DATA> tag is not encoded.  When I view the data returned for the
> GetImageDataResult tag it has <BASE64DATA> rather than &lt;BASE64DATA&gt;
> which surprised me that the parser didn't parse it out. 

If that were really the case, the parser WOULD parse it out, believe me 
it would.  HOWEVER... the XML parser *will* convert the &lt; to < and 
the &gt; to >.  So if you're checking this by looking at the 'value' 
parameter that's passed to your end handler, then indeed it will look 
like <BASE64DATA>

That's why I asked you to check it in the httpapi_debug.txt file, and 
NOT in the value parameter. :)

> Right now I am just trying to get a good image so the 64k is not a problem.
> Once I get everything working I will use the HTTP_XmlReturnPtr() and add
> error logic as you suggest.

That's fine as long as your tests use images smaller than 64k.  I just 
want to make sure the diff between working and failing in your tests 
don't come from the image being chopped up.

> I changed val2 to be a fixed length for now and below are the changes to the
> procedure.  I added a scan for x'0D' and x'25' and put the program into
> debug for testing and I didn't find any.

Hopefully you get the idea.  Any characters that aren't in the base64 
alphabet (A-Z a-z 0-9 + / =) need to be removed.  x'0D' and x'25' were 
just likely examples... you need to remove everything besides the base64 
alphabet.

> I had overlooked the point you made in (D).  There is tag
> <IMAGESIZE>8908</IMAGESIZE> which I should be able to use to determine the
> output length.

Once again...  base64_decode() will RETURN the output length.  You don't 
need to go to the extent of parsing the XML for it.  Just do:

    len = base64_decode( ... parameters here ...);


If that doesn't help, please call the service with http_url_post() 
(instead of POST_XML) and send me the XML document you get from your 
provider.  (Send it to me off-list if it contains sensitive 
information).  That would make it a lot easier for me to help you.

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