| Author |
Message |
< Yaws mailing list ~ Getting specific values from hearders (User-Agent, Accept-La |
| hknight |
 Posted: Mon Feb 15, 2010 1:10 am |
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User
Joined: 07 Jan 2010
Posts: 11
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How can I get the User-Agent, Accept-Language, and Host from the
headers sent with a request?
My code below places these items in a list but I want to separate them out.
Thanks for the help!
- Hank
----------------
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Title</title>
</head>
<body>
<h1> Details about the Request </h1>
<blockquote style="border: 1px solid red; margin: 10px">
<erl>
out(A) ->
Req = A#arg.req,
H = yaws_api:reformat_header(A#arg.headers),
{ehtml,
[{h2,[], "The headers passed to us were:"},
{hr},
{ol, [],lists:map(fun(S) -> {li,[], {p,[],S}} end,H)},
{hr},
{h2, [], "Request Method"},
{pre,[], f("~s", [Req#http_request.method])},
{h2, [], "User-Agent"},
{pre,[], "??? (Should be something like Mozilla/5.0)"},
{h2, [], "Accept-Language"},
{pre,[], "??? (Should be something like en-us,en,en-uk)"},
{h2, [], "Host"},
{pre,[], "??? (Should be something like example.com)"},
{hr},
{h2, [], "Path"},
{pre,[], f("~p", [Req#http_request.path])},
{hr},
{h2, [], "IP Address"},
{pre,[], f("~p", [inet:peername(A#arg.clisock)])},
{hr},
{h2, [], "Parsed GET Query Data"},
{pre,[], f("~p", [yaws_api:parse_query(A)])},
{hr},
{h2,[], "Parsed POST Query data "},
{pre,[], f("~p", [yaws_api:parse_post(A)])}]}.
</erl>
</blockquote>
</body>
</html>
------------------------------------------------------------------------------
SOLARIS 10 is the OS for Data Centers - provides features such as DTrace,
Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW
http://p.sf.net/sfu/solaris-dev2dev
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| hknight |
| Posted: Mon Feb 15, 2010 2:08 am |
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User
Joined: 07 Jan 2010
Posts: 11
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Thanks, I tried your code but still can't get it to work.
Is there no easy way with YAWS to get the "User-Agent" for a request?
On Sun, Feb 14, 2010 at 9:34 PM, wde <wde@free.fr> wrote:
> hi,
>
> you can parse the list |
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| Guest |
| Posted: Mon Feb 15, 2010 2:19 am |
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Guest
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hi,
you can parse the list (Arg#arg.headers)#headers.other
I use something like that :
find_http_header(Key,Headers) when is_list(Headers) ->
case lists:keysearch(Key,3,Headers) of
{value,{_,_,_,_,Value}} -> Value;
false -> undefined
end.
>How can I get the User-Agent, Accept-Language, and Host from the
>headers sent with a request?
>
>My code below places these items in a list but I want to separate them out.
>
>Thanks for the help!
>
>- Hank
>
>----------------
>
><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
>"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
><html xmlns="http://www.w3.org/1999/xhtml">
><head>
><title>Title</title>
></head>
><body>
>
><h1> Details about the Request </h1>
>
><blockquote style="border: 1px solid red; margin: 10px">
>
><erl>
>out(A) ->
>Req = A#arg.req,
>H = yaws_api:reformat_header(A#arg.headers),
>{ehtml,
>[{h2,[], "The headers passed to us were:"},
>{hr},
>{ol, [],lists:map(fun(S) -> {li,[], {p,[],S}} end,H)},
>{hr},
>{h2, [], "Request Method"},
>{pre,[], f("~s", [Req#http_request.method])},
>
>{h2, [], "User-Agent"},
>{pre,[], "??? (Should be something like Mozilla/5.0)"},
>{h2, [], "Accept-Language"},
>{pre,[], "??? (Should be something like en-us,en,en-uk)"},
>{h2, [], "Host"},
>{pre,[], "??? (Should be something like example.com)"},
>
>{hr},
>{h2, [], "Path"},
>{pre,[], f("~p", [Req#http_request.path])},
>{hr},
>{h2, [], "IP Address"},
>{pre,[], f("~p", [inet:peername(A#arg.clisock)])},
>{hr},
>{h2, [], "Parsed GET Query Data"},
>{pre,[], f("~p", [yaws_api:parse_query(A)])},
>{hr},
>{h2,[], "Parsed POST Query data "},
>{pre,[], f("~p", [yaws_api:parse_post(A)])}]}.
></erl>
></blockquote>
>
></body>
></html>
>
>------------------------------------------------------------------------------
>SOLARIS 10 is the OS for Data Centers - provides features such as DTrace,
>Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW
>http://p.sf.net/sfu/solaris-dev2dev
>_______________________________________________
>Erlyaws-list mailing list
>Erlyaws-list@lists.sourceforge.net
>https://lists.sourceforge.net/lists/listinfo/erlyaws-list
>
------------------------------------------------------------------------------
SOLARIS 10 is the OS for Data Centers - provides features such as DTrace,
Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW
http://p.sf.net/sfu/solaris-dev2dev
_______________________________________________
Erlyaws-list mailing list
Erlyaws-list@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/erlyaws-list
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| Guest |
| Posted: Mon Feb 15, 2010 4:21 am |
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Guest
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On Sun, Feb 14, 2010 at 9:08 PM, Hank Knight <hknight555@gmail.com (hknight555@gmail.com)> wrote:
Quote: Thanks, I tried your code but still can't get it to work.
Is there no easy way with YAWS to get the "User-Agent" for a request?
If you're writing a .yaws file, you don't need the following, but otherwise you do:
-include("yaws/include/yaws_api.hrl").
Then, access the User-Agent header via:
(Arg#arg.headers)#headers.user_agent
--steve
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| hknight |
| Posted: Mon Feb 15, 2010 1:13 pm |
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User
Joined: 07 Jan 2010
Posts: 11
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Thanks, Steve. Your idea works for User-Agent but it doesn't work with
other header values like "Accept-Charset" and "Accept-Language"
----------------------------------------------------------------
<erl>
out(Arg) ->
{status, 200},
{content, "text/html", ""}.
</erl>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Details about the Reuqest</title>
<style type="text/css">
span {color: red;}
h2{font-size: 12pt;}
</style>
</head>
<body>
<h1>Details</h1>
<h2>Your user agent is:
<span>
<erl>
out(A) ->
{html, (A#arg.headers)#headers.user_agent}.
</erl>
</span></h2>
<h2>Host:
<span>
<erl>
out(A) ->
{html, (A#arg.headers)#headers.host}.
</erl>
</span></h2>
<h2>Accept-Language:
<span>
<erl>
out(A) ->
{html, (A#arg.headers)#headers.accept_language}.
</erl>
</span></h2>
<h2>Accept-Charset:
<span>
<erl>
out(A) ->
{html, (A#arg.headers)#headers.accept_charset}.
</erl>
</span></h2>
</body>
</html>
------------------------------------------------------------------------------
SOLARIS 10 is the OS for Data Centers - provides features such as DTrace,
Predictive Self Healing and Award Winning ZFS. Get Solaris 10 NOW
http://p.sf.net/sfu/solaris-dev2dev
_______________________________________________
Erlyaws-list mailing list
Erlyaws-list@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/erlyaws-list
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| Guest |
| Posted: Mon Feb 15, 2010 4:10 pm |
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Guest
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On Mon, Feb 15, 2010 at 8:12 AM, Hank Knight <hknight555@gmail.com (hknight555@gmail.com)> wrote:
Quote: Thanks, Steve. Your idea works for User-Agent but it doesn't work with
other header values like "Accept-Charset" and "Accept-Language"
Commonly-used headers appear as fields in the header record, but if it's not in a field, then it's stored in the "other" field. You can find code for interpreting the "other" field in wde's previous response in this thread, and use it like this:
<erl>
out(_) ->
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| hknight |
| Posted: Mon Feb 15, 2010 10:34 pm |
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| wuji |
| Posted: Mon Sep 03, 2012 7:14 am |
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Joined: 10 Aug 2012
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