.\" Automatically generated by Pod::Man 4.14 (Pod::Simple 3.43) .\" .\" Standard preamble: .\" ======================================================================== .de Sp \" Vertical space (when we can't use .PP) .if t .sp .5v .if n .sp .. .de Vb \" Begin verbatim text .ft CW .nf .ne \\$1 .. .de Ve \" End verbatim text .ft R .fi .. .\" Set up some character translations and predefined strings. \*(-- will .\" give an unbreakable dash, \*(PI will give pi, \*(L" will give a left .\" double quote, and \*(R" will give a right double quote. \*(C+ will .\" give a nicer C++. Capital omega is used to do unbreakable dashes and .\" therefore won't be available. \*(C` and \*(C' expand to `' in nroff, .\" nothing in troff, for use with C<>. .tr \(*W- .ds C+ C\v'-.1v'\h'-1p'\s-2+\h'-1p'+\s0\v'.1v'\h'-1p' .ie n \{\ . ds -- \(*W- . ds PI pi . if (\n(.H=4u)&(1m=24u) .ds -- \(*W\h'-12u'\(*W\h'-12u'-\" diablo 10 pitch . if (\n(.H=4u)&(1m=20u) .ds -- \(*W\h'-12u'\(*W\h'-8u'-\" diablo 12 pitch . ds L" "" . ds R" "" . ds C` "" . ds C' "" 'br\} .el\{\ . ds -- \|\(em\| . ds PI \(*p . ds L" `` . ds R" '' . ds C` . ds C' 'br\} .\" .\" Escape single quotes in literal strings from groff's Unicode transform. .ie \n(.g .ds Aq \(aq .el .ds Aq ' .\" .\" If the F register is >0, we'll generate index entries on stderr for .\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index .\" entries marked with X<> in POD. Of course, you'll have to process the .\" output yourself in some meaningful fashion. .\" .\" Avoid warning from groff about undefined register 'F'. .de IX .. .nr rF 0 .if \n(.g .if rF .nr rF 1 .if (\n(rF:(\n(.g==0)) \{\ . if \nF \{\ . de IX . tm Index:\\$1\t\\n%\t"\\$2" .. . if !\nF==2 \{\ . nr % 0 . nr F 2 . \} . \} .\} .rr rF .\" ======================================================================== .\" .IX Title "HTTP::Status 3pm" .TH HTTP::Status 3pm "2023-10-29" "perl v5.36.0" "User Contributed Perl Documentation" .\" For nroff, turn off justification. Always turn off hyphenation; it makes .\" way too many mistakes in technical documents. .if n .ad l .nh .SH "NAME" HTTP::Status \- HTTP Status code processing .SH "VERSION" .IX Header "VERSION" version 6.45 .SH "SYNOPSIS" .IX Header "SYNOPSIS" .Vb 1 \& use HTTP::Status qw(:constants :is status_message); \& \& if ($rc != HTTP_OK) { \& print status_message($rc), "\en"; \& } \& \& if (is_success($rc)) { ... } \& if (is_error($rc)) { ... } \& if (is_redirect($rc)) { ... } .Ve .SH "DESCRIPTION" .IX Header "DESCRIPTION" \&\fIHTTP::Status\fR is a library of routines for defining and classifying \s-1HTTP\s0 status codes for libwww-perl. Status codes are used to encode the overall outcome of an \s-1HTTP\s0 response message. Codes correspond to those defined in \s-1RFC 2616\s0 and \s-1RFC 2518.\s0 .SH "CONSTANTS" .IX Header "CONSTANTS" The following constant functions can be used as mnemonic status code names. None of these are exported by default. Use the \f(CW\*(C`:constants\*(C'\fR tag to import them all. .PP .Vb 4 \& HTTP_CONTINUE (100) \& HTTP_SWITCHING_PROTOCOLS (101) \& HTTP_PROCESSING (102) \& HTTP_EARLY_HINTS (103) \& \& HTTP_OK (200) \& HTTP_CREATED (201) \& HTTP_ACCEPTED (202) \& HTTP_NON_AUTHORITATIVE_INFORMATION (203) \& HTTP_NO_CONTENT (204) \& HTTP_RESET_CONTENT (205) \& HTTP_PARTIAL_CONTENT (206) \& HTTP_MULTI_STATUS (207) \& HTTP_ALREADY_REPORTED (208) \& \& HTTP_IM_USED (226) \& \& HTTP_MULTIPLE_CHOICES (300) \& HTTP_MOVED_PERMANENTLY (301) \& HTTP_FOUND (302) \& HTTP_SEE_OTHER (303) \& HTTP_NOT_MODIFIED (304) \& HTTP_USE_PROXY (305) \& HTTP_TEMPORARY_REDIRECT (307) \& HTTP_PERMANENT_REDIRECT (308) \& \& HTTP_BAD_REQUEST (400) \& HTTP_UNAUTHORIZED (401) \& HTTP_PAYMENT_REQUIRED (402) \& HTTP_FORBIDDEN (403) \& HTTP_NOT_FOUND (404) \& HTTP_METHOD_NOT_ALLOWED (405) \& HTTP_NOT_ACCEPTABLE (406) \& HTTP_PROXY_AUTHENTICATION_REQUIRED (407) \& HTTP_REQUEST_TIMEOUT (408) \& HTTP_CONFLICT (409) \& HTTP_GONE (410) \& HTTP_LENGTH_REQUIRED (411) \& HTTP_PRECONDITION_FAILED (412) \& HTTP_PAYLOAD_TOO_LARGE (413) \& HTTP_URI_TOO_LONG (414) \& HTTP_UNSUPPORTED_MEDIA_TYPE (415) \& HTTP_RANGE_NOT_SATISFIABLE (416) \& HTTP_EXPECTATION_FAILED (417) \& HTTP_MISDIRECTED REQUEST (421) \& HTTP_UNPROCESSABLE_ENTITY (422) \& HTTP_LOCKED (423) \& HTTP_FAILED_DEPENDENCY (424) \& HTTP_TOO_EARLY (425) \& HTTP_UPGRADE_REQUIRED (426) \& HTTP_PRECONDITION_REQUIRED (428) \& HTTP_TOO_MANY_REQUESTS (429) \& HTTP_REQUEST_HEADER_FIELDS_TOO_LARGE (431) \& HTTP_UNAVAILABLE_FOR_LEGAL_REASONS (451) \& \& HTTP_INTERNAL_SERVER_ERROR (500) \& HTTP_NOT_IMPLEMENTED (501) \& HTTP_BAD_GATEWAY (502) \& HTTP_SERVICE_UNAVAILABLE (503) \& HTTP_GATEWAY_TIMEOUT (504) \& HTTP_HTTP_VERSION_NOT_SUPPORTED (505) \& HTTP_VARIANT_ALSO_NEGOTIATES (506) \& HTTP_INSUFFICIENT_STORAGE (507) \& HTTP_LOOP_DETECTED (508) \& HTTP_NOT_EXTENDED (510) \& HTTP_NETWORK_AUTHENTICATION_REQUIRED (511) .Ve .SH "FUNCTIONS" .IX Header "FUNCTIONS" The following additional functions are provided. Most of them are exported by default. The \f(CW\*(C`:is\*(C'\fR import tag can be used to import all the classification functions. .ie n .IP "status_message( $code )" 4 .el .IP "status_message( \f(CW$code\fR )" 4 .IX Item "status_message( $code )" The \fBstatus_message()\fR function will translate status codes to human readable strings. The string is the same as found in the constant names above. For example, \f(CW\*(C`status_message(303)\*(C'\fR will return \f(CW"Not Found"\fR. .Sp If the \f(CW$code\fR is not registered in the list of \s-1IANA HTTP\s0 Status Codes then \f(CW\*(C`undef\*(C'\fR is returned. .ie n .IP "status_constant_name( $code )" 4 .el .IP "status_constant_name( \f(CW$code\fR )" 4 .IX Item "status_constant_name( $code )" The \fBstatus_constant_name()\fR function will translate a status code to a string which has the name of the constant for that status code. For example, \f(CW\*(C`status_constant_name(404)\*(C'\fR will return \f(CW"HTTP_NOT_FOUND"\fR. .Sp If the \f(CW$code\fR is not registered in the list of \s-1IANA HTTP\s0 Status Codes then \f(CW\*(C`undef\*(C'\fR is returned. .ie n .IP "is_info( $code )" 4 .el .IP "is_info( \f(CW$code\fR )" 4 .IX Item "is_info( $code )" Return \s-1TRUE\s0 if \f(CW$code\fR is an \fIInformational\fR status code (1xx). This class of status code indicates a provisional response which can't have any content. .ie n .IP "is_success( $code )" 4 .el .IP "is_success( \f(CW$code\fR )" 4 .IX Item "is_success( $code )" Return \s-1TRUE\s0 if \f(CW$code\fR is a \fISuccessful\fR status code (2xx). .ie n .IP "is_redirect( $code )" 4 .el .IP "is_redirect( \f(CW$code\fR )" 4 .IX Item "is_redirect( $code )" Return \s-1TRUE\s0 if \f(CW$code\fR is a \fIRedirection\fR status code (3xx). This class of status code indicates that further action needs to be taken by the user agent in order to fulfill the request. .ie n .IP "is_error( $code )" 4 .el .IP "is_error( \f(CW$code\fR )" 4 .IX Item "is_error( $code )" Return \s-1TRUE\s0 if \f(CW$code\fR is an \fIError\fR status code (4xx or 5xx). The function returns \s-1TRUE\s0 for both client and server error status codes. .ie n .IP "is_client_error( $code )" 4 .el .IP "is_client_error( \f(CW$code\fR )" 4 .IX Item "is_client_error( $code )" Return \s-1TRUE\s0 if \f(CW$code\fR is a \fIClient Error\fR status code (4xx). This class of status code is intended for cases in which the client seems to have erred. .Sp This function is \fBnot\fR exported by default. .ie n .IP "is_server_error( $code )" 4 .el .IP "is_server_error( \f(CW$code\fR )" 4 .IX Item "is_server_error( $code )" Return \s-1TRUE\s0 if \f(CW$code\fR is a \fIServer Error\fR status code (5xx). 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. .Sp This function is \fBnot\fR exported by default. .ie n .IP "is_cacheable_by_default( $code )" 4 .el .IP "is_cacheable_by_default( \f(CW$code\fR )" 4 .IX Item "is_cacheable_by_default( $code )" Return \s-1TRUE\s0 if \f(CW$code\fR indicates that a response is cacheable by default, and it can be reused by a cache with heuristic expiration. All other status codes are not cacheable by default. See \s-1RFC 7231\s0 \- \s-1HTTP/1.1\s0 Semantics and Content, Section 6.1. Overview of Status Codes . .Sp This function is \fBnot\fR exported by default. .IP "status_codes" 4 .IX Item "status_codes" Returns a hash mapping numerical \s-1HTTP\s0 status code (e.g. 200) to text status messages (e.g. \*(L"\s-1OK\*(R"\s0) .Sp This function is \fBnot\fR exported by default. .SH "SEE ALSO" .IX Header "SEE ALSO" \&\s-1IANA HTTP\s0 Status Codes .SH "BUGS" .IX Header "BUGS" For legacy reasons all the \f(CW\*(C`HTTP_\*(C'\fR constants are exported by default with the prefix \f(CW\*(C`RC_\*(C'\fR. It's recommended to use explicit imports and the \f(CW\*(C`:constants\*(C'\fR tag instead of relying on this. .SH "AUTHOR" .IX Header "AUTHOR" Gisle Aas .SH "COPYRIGHT AND LICENSE" .IX Header "COPYRIGHT AND LICENSE" This software is copyright (c) 1994 by Gisle Aas. .PP This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.