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<HTML>
<HEAD>
<TITLE>HTTP::Status - HTTP Status code processing</TITLE>
<LINK REL="stylesheet" HREF="../../../Active.css" TYPE="text/css">
<LINK REV="made" HREF="mailto:">
</HEAD>
<BODY>
<TABLE BORDER=0 CELLPADDING=0 CELLSPACING=0 WIDTH=100%>
<TR><TD CLASS=block VALIGN=MIDDLE WIDTH=100% BGCOLOR="#cccccc">
<STRONG><P CLASS=block> HTTP::Status - HTTP Status code processing</P></STRONG>
</TD></TR>
</TABLE>
<A NAME="__index__"></A>
<!-- INDEX BEGIN -->
<UL>
<LI><A HREF="#name">NAME</A></LI><LI><A HREF="#supportedplatforms">SUPPORTED PLATFORMS</A></LI>
<LI><A HREF="#synopsis">SYNOPSIS</A></LI>
<LI><A HREF="#description">DESCRIPTION</A></LI>
<LI><A HREF="#constants">CONSTANTS</A></LI>
<LI><A HREF="#functions">FUNCTIONS</A></LI>
<LI><A HREF="#bugs">BUGS</A></LI>
</UL>
<!-- INDEX END -->
<HR>
<P>
<H1><A NAME="name">NAME</A></H1>
<P>HTTP::Status - HTTP Status code processing</P>
<P>
<HR>
<H1><A NAME="supportedplatforms">SUPPORTED PLATFORMS</A></H1>
<UL>
<LI>Linux</LI>
<LI>Solaris</LI>
<LI>Windows</LI>
</UL>
<HR>
<H1><A NAME="synopsis">SYNOPSIS</A></H1>
<PRE>
use HTTP::Status;</PRE>
<PRE>
if ($rc != RC_OK) {
print status_message($rc), "\n";
}</PRE>
<PRE>
if (is_success($rc)) { ... }
if (is_error($rc)) { ... }
if (is_redirect($rc)) { ... }</PRE>
<P>
<HR>
<H1><A NAME="description">DESCRIPTION</A></H1>
<P><EM>HTTP::Status</EM> is a library of routines for defining and
classifying HTTP status codes for libwww-perl. Status codes are
used to encode the overall outcome of a HTTP response message. Codes
correspond to those defined in <EM>draft-ietf-http-v11-spec-rev-03</EM> (an
update to RFC 2068).</P>
<P>
<HR>
<H1><A NAME="constants">CONSTANTS</A></H1>
<P>The following constant functions can be used as mnemonic status code
names:</P>
<PRE>
RC_CONTINUE (100)
RC_SWITCHING_PROTOCOLS (101)</PRE>
<PRE>
RC_OK (200)
RC_CREATED (201)
RC_ACCEPTED (202)
RC_NON_AUTHORITATIVE_INFORMATION (203)
RC_NO_CONTENT (204)
RC_RESET_CONTENT (205)
RC_PARTIAL_CONTENT (206)</PRE>
<PRE>
RC_MULTIPLE_CHOICES (300)
RC_MOVED_PERMANENTLY (301)
RC_FOUND (302)
RC_SEE_OTHER (303)
RC_NOT_MODIFIED (304)
RC_USE_PROXY (305)
RC_TEMPORARY_REDIRECT (307)</PRE>
<PRE>
RC_BAD_REQUEST (400)
RC_UNAUTHORIZED (401)
RC_PAYMENT_REQUIRED (402)
RC_FORBIDDEN (403)
RC_NOT_FOUND (404)
RC_METHOD_NOT_ALLOWED (405)
RC_NOT_ACCEPTABLE (406)
RC_PROXY_AUTHENTICATION_REQUIRED (407)
RC_REQUEST_TIMEOUT (408)
RC_CONFLICT (409)
RC_GONE (410)
RC_LENGTH_REQUIRED (411)
RC_PRECONDITION_FAILED (412)
RC_REQUEST_ENTITY_TOO_LARGE (413)
RC_REQUEST_URI_TOO_LARGE (414)
RC_UNSUPPORTED_MEDIA_TYPE (415)
RC_REQUEST_RANGE_NOT_SATISFIABLE (416)
RC_EXPECTATION_FAILED (417)</PRE>
<PRE>
RC_INTERNAL_SERVER_ERROR (500)
RC_NOT_IMPLEMENTED (501)
RC_BAD_GATEWAY (502)
RC_SERVICE_UNAVAILABLE (503)
RC_GATEWAY_TIMEOUT (504)
RC_HTTP_VERSION_NOT_SUPPORTED (505)</PRE>
<P>
<HR>
<H1><A NAME="functions">FUNCTIONS</A></H1>
<P>The following additional functions are provided. Most of them are
exported by default.</P>
<DL>
<DT><STRONG><A NAME="item_status_message"><CODE>status_message($code)</CODE></A></STRONG><BR>
<DD>
The <A HREF="#item_status_message"><CODE>status_message()</CODE></A> function will translate status codes to human
readable strings. The string is the same as found in the constant
names above. If the $code is unknown, then <A HREF="../../../lib/Pod/perlfunc.html#item_undef"><CODE>undef</CODE></A> is returned.
<P></P>
<DT><STRONG><A NAME="item_is_info"><CODE>is_info($code)</CODE></A></STRONG><BR>
<DD>
Return TRUE if <CODE>$code</CODE> is an <EM>Informational</EM> status code. This
class of status code indicates a provisional response which can't have
any content.
<P></P>
<DT><STRONG><A NAME="item_is_success"><CODE>is_success($code)</CODE></A></STRONG><BR>
<DD>
Return TRUE if <CODE>$code</CODE> is a <EM>Successful</EM> status code.
<P></P>
<DT><STRONG><A NAME="item_is_redirect"><CODE>is_redirect($code)</CODE></A></STRONG><BR>
<DD>
Return TRUE if <CODE>$code</CODE> is a <EM>Redirection</EM> status code. This class of
status code indicates that further action needs to be taken by the
user agent in order to fulfill the request.
<P></P>
<DT><STRONG><A NAME="item_is_error"><CODE>is_error($code)</CODE></A></STRONG><BR>
<DD>
Return TRUE if <CODE>$code</CODE> is an <EM>Error</EM> status code. The function
return TRUE for both client error or a server error status codes.
<P></P>
<DT><STRONG><A NAME="item_is_client_error"><CODE>is_client_error($code)</CODE></A></STRONG><BR>
<DD>
Return TRUE if <CODE>$code</CODE> is an <EM>Client Error</EM> status code. This class
of status code is intended for cases in which the client seems to have
erred.
<P>This function is <STRONG>not</STRONG> exported by default.</P>
<P></P>
<DT><STRONG><A NAME="item_is_server_error"><CODE>is_server_error($code)</CODE></A></STRONG><BR>
<DD>
Return TRUE if <CODE>$code</CODE> is an <EM>Server Error</EM> status code. This class
of status codes is intended for cases in which the server is aware
that it has erred or is incapable of performing the request.
<P>This function is <STRONG>not</STRONG> exported by default.</P>
<P></P></DL>
<P>
<HR>
<H1><A NAME="bugs">BUGS</A></H1>
<P>Wished @EXPORT_OK had been used instead of @EXPORT in the beginning.
Now too much is exported by default.</P>
<TABLE BORDER=0 CELLPADDING=0 CELLSPACING=0 WIDTH=100%>
<TR><TD CLASS=block VALIGN=MIDDLE WIDTH=100% BGCOLOR="#cccccc">
<STRONG><P CLASS=block> HTTP::Status - HTTP Status code processing</P></STRONG>
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