CRLF in HTTP response

[ChrisW67]

Web server can use different scheme for separate header lines.
You can have
'\n' or '\r\n' or '\n\r'.
Believe me beacause I tested a lot of embedded web server (not the bigger ones).

You should report any embedded web server that uses something other "\r\n" to the creator of the server software. The HTTP RFC is clear:
"HTTP/1.1 defines the sequence CR LF as the end-of-line marker for all protocol elements except the entity-body"
http://www.w3.org/Protocols/rfc2616/...c2.html#sec2.2 (Was the same in HTTP/1).

The RFC advises tolerance (http://www.w3.org/Protocols/rfc2616/...9.html#sec19.3) but even it does not mention LFCR as a possibility. You still have to accept the rubbish data from the server, but if you don't tell them they cannot fix it.

[giusepped]

You should report any embedded web server that uses something other "\r\n" to the creator of the server software. The HTTP RFC is clear:

I agree with you. But also TCP has an RFC and there out there a lot of TCP flavors totally out of the standard (think of download accelerators).
Anyway, what you suggest is very difficult when the producer of the embedded video server is an unknown China based maker and you have to provide your client with a solution. On the other hand, we are engineer after all, aren't we?

[wysota]

I agree with you. But also TCP has an RFC and there out there a lot of TCP flavors totally out of the standard (think of download accelerators).

Not really. There are a lot of extensions to TCP defined and they have separate RFC documents. It is true that some implementations (mostly Windows) do not conform in 100% to TCP specs but this is mostly related to unused or reserved fields.

[giusepped]

However, your class is of little help and I ma stucked with this problem.
I am looking for someone can help me.
Could you take a look at my code?
It works for most web servers except one.
Regards

[wysota]

Did you try using QHttpRequestHeader and QHttpResponseHeader as I suggested?

[giusepped]

Yes, it does not work.
Regards

[wysota]

Could you provide a sample of http headers for which the class fails? You can provide it as an attachment to your post.