HTTP::Status - HTTP Status code processing
use HTTP::Status qw(:constants :is status_message);
if ($rc != HTTP_OK) { print status_message($rc), "\n"; }
if (is_success($rc)) { ... } if (is_error($rc)) { ... } if (is_redirect($rc)) { ... }
HTTP::Status 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 RFC 2616 and RFC 2518.
The following constant functions can be used as mnemonic status code
names. None of these are exported by default. Use the :constants
tag to import them all.
HTTP_CONTINUE (100) HTTP_SWITCHING_PROTOCOLS (101) HTTP_PROCESSING (102)
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_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_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_REQUEST_ENTITY_TOO_LARGE (413) HTTP_REQUEST_URI_TOO_LARGE (414) HTTP_UNSUPPORTED_MEDIA_TYPE (415) HTTP_REQUEST_RANGE_NOT_SATISFIABLE (416) HTTP_EXPECTATION_FAILED (417) HTTP_UNPROCESSABLE_ENTITY (422) HTTP_LOCKED (423) HTTP_FAILED_DEPENDENCY (424) HTTP_NO_CODE (425) HTTP_UPGRADE_REQUIRED (426) HTTP_RETRY_WITH (449)
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_BANDWIDTH_LIMIT_EXCEEDED (509) HTTP_NOT_EXTENDED (510)
The following additional functions are provided. Most of them are
exported by default. The :is
import tag can be used to import all
the classification functions.
The status_message()
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 undef
is returned.
Return TRUE if $code
is an Informational status code (1xx). This
class of status code indicates a provisional response which can't have
any content.
Return TRUE if $code
is a Successful status code (2xx).
Return TRUE if $code
is a Redirection 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.
Return TRUE if $code
is an Error status code (4xx or 5xx). The function
return TRUE for both client error or a server error status codes.
Return TRUE if $code
is an Client Error status code (4xx). This class
of status code is intended for cases in which the client seems to have
erred.
This function is not exported by default.
Return TRUE if $code
is an Server Error 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.
This function is not exported by default.
For legacy reasons all the HTTP_
constants are exported by default
with the prefix RC_
. It's recommended to use explict imports and
the :constants
tag instead of relying on this.