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Is there a way to read non success http data, for example for a 404, in Rebol? When open gets a non success http response code for an URL it fails with an error, but I would like to read the response instead.

rnyberg
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  • I don't know the specific answer, but see [how to get the response content of an http 404 response](http://stackoverflow.com/questions/17829211/how-to-get-the-response-content-of-an-http-404-response). I think there should be a better answer, it's open source now, see [prot-http.r](https://github.com/rebol/rebol/blob/master/src/mezz/prot-http.r)! :-) – HostileFork says dont trust SE Mar 28 '14 at 10:50
  • Thanks @HostileFork! I don't know how I missed that question. Very enlightening. :) It's unfortunate that one needs to customize the http scheme for this. I haven't looked at the Rebol 3 code yet though. – rnyberg Mar 28 '14 at 12:27

1 Answers1

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I know this is crude, but it works for Rebol 2. You can get the http protocol scheme with

 h: get in system/schemes 'http

then you write it to a file

write %ht mold h

and edit this file. There you replace this line

result: select either tunnel [tunnel-actions] [response-actions] response-code

with 

port/status: response-code 
result: case [
    tunnel [
       select tunnel-actions  response-code 
    ]
    not find response-actions response-code [
       return response-code
    ] 
    true [
      select response-actions response-code 
   ]
]

Then you have to replace the original scheme. Add
Rebol [] system/schemes/http:
at the beginnung of your ht-file and do it with do %ht

sqlab
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  • Yes, this works (in a very hackish way :) ). I see that the http scheme code doesn't quite do what I want without some custimization. What I'd really like is to get both data, response code and header for a request. Fortunately that code isn't too hard to write anyway. – rnyberg Mar 28 '14 at 12:45
  • I added the unhandled response codes at a place you can query. – sqlab Mar 28 '14 at 15:01