cppcms-users

[Cppcms-users] Custom Headers in request()

[Frank E. <fra...@an...>]

hi,

the cppcms::http::request class only provides access to predefined
headers. now i try to implement CORS (http://www.w3.org/TR/cors/) in
which case the browser sends 'Access-Control-Request-Method' and
'Access-Control-Request-Headers' headers whcih i cannot access using the
existing methods (or am i mistaken?).

would it be possible to make a method available which returns a map of
all headers as sent by the browser? (something like
std::map<std::string,std::string> cppcms::http::request::http_headers())

thanks

frank
-- 
Dipl.-Ing. (FH) Frank Enderle

anamica UG (haftungsbeschränkt)
Beinsteinerstr. 6
71334 Waiblingen

Telefon:  +49 151 14981091
Telefax:  +49 7151 1335770
E-Mail:   fra...@an...
Internet: www.anamica.de

Handelsregister: AG Stuttgart HRB 732357
Geschäftsführer: Yvonne Holzwarth, Frank Enderle

Re: [Cppcms-users] Custom Headers in request()

[Artyom <art...@ya...>]

Hello,

I think I answered this question ones. But anyway

CppCMS uses CGI based API, in order to read some
header like X-Foo-Bar you need to read environment
variable HTTP_X_FOO_BAR (See [1]) However
some web servers do not pass all headers for example
nginx passes only headres defined explicitly in fastcgi
configuration, so the behavior may vary between the servers.

Cppcms has API for it cppcs::http::request::getenv()
see [2]. So basically all you need is to call getenv()
for CGI variable.

[1] RFC3875 Common Gateway Interface v 1.1 Protocol-Specific
    Meta-Variables at http://www.ietf.org/rfc/rfc3875

[2] 
http://art-blog.no-ip.info/cppcms_ref_v0_99/classcppcms_1_1http_1_1request.html#e1027cdea2ba8a41a041269df8092ae3

    and 
http://art-blog.no-ip.info/cppcms_ref_v0_99/classcppcms_1_1http_1_1request.html#92bc86f75e4e1f9480967ce3fd1e4f65


Artyom



> hi,
> 
> the cppcms::http::request class only provides access to  predefined
> headers. now i try to implement CORS (http://www.w3.org/TR/cors/)  in
> which case the browser sends 'Access-Control-Request-Method'  and
> 'Access-Control-Request-Headers' headers whcih i cannot access using  the
> existing methods (or am i mistaken?).
> 
> would it be possible to make  a method available which returns a map of
> all headers as sent by the browser?  (something like
> std::map<std::string,std::string>  cppcms::http::request::http_headers())
> 
> thanks
> 
> frank


      

Re: [Cppcms-users] Custom Headers in request()

[Frank E. <fra...@an...>]

Hi,

thanks for pointing this out. Since the headers are not present in the
environment I'll take a deeper look into nginx for filtering such headers.

Frank

Am 28.11.2010 18:46, schrieb Artyom:
> Hello,
> 
> I think I answered this question ones. But anyway
> 
> CppCMS uses CGI based API, in order to read some
> header like X-Foo-Bar you need to read environment
> variable HTTP_X_FOO_BAR (See [1]) However
> some web servers do not pass all headers for example
> nginx passes only headres defined explicitly in fastcgi
> configuration, so the behavior may vary between the servers.
> 
> Cppcms has API for it cppcs::http::request::getenv()
> see [2]. So basically all you need is to call getenv()
> for CGI variable.
> 
> [1] RFC3875 Common Gateway Interface v 1.1 Protocol-Specific
>     Meta-Variables at http://www.ietf.org/rfc/rfc3875
> 
> [2] 
> http://art-blog.no-ip.info/cppcms_ref_v0_99/classcppcms_1_1http_1_1request.html#e1027cdea2ba8a41a041269df8092ae3
> 
>     and 
> http://art-blog.no-ip.info/cppcms_ref_v0_99/classcppcms_1_1http_1_1request.html#92bc86f75e4e1f9480967ce3fd1e4f65
> 
> 
> Artyom
> 
> 
> 
>> hi,
>>
>> the cppcms::http::request class only provides access to  predefined
>> headers. now i try to implement CORS (http://www.w3.org/TR/cors/)  in
>> which case the browser sends 'Access-Control-Request-Method'  and
>> 'Access-Control-Request-Headers' headers whcih i cannot access using  the
>> existing methods (or am i mistaken?).
>>
>> would it be possible to make  a method available which returns a map of
>> all headers as sent by the browser?  (something like
>> std::map<std::string,std::string>  cppcms::http::request::http_headers())
>>
>> thanks
>>
>> frank
> 
> 
>       
> 
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-- 
Dipl.-Ing. (FH) Frank Enderle

anamica UG (haftungsbeschränkt)
Beinsteinerstr. 6
71334 Waiblingen

Telefon:  +49 151 14981091
Telefax:  +49 7151 1335770
E-Mail:   fra...@an...
Internet: www.anamica.de

Handelsregister: AG Stuttgart HRB 732357
Geschäftsführer: Yvonne Holzwarth, Frank Enderle