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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */

/* Cherokee
*
* Authors:
* Alvaro Lopez Ortega <alvaro@alobbs.com>
*
* Copyright (C) 2001-2011 Alvaro Lopez Ortega
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of version 2 of the GNU General Public
* License as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/

#if !defined (CHEROKEE_INSIDE_CHEROKEE_H) && !defined (CHEROKEE_COMPILATION)
# error "Only <cherokee/cherokee.h> can be included directly, this file may disappear or change contents."
#endif

#ifndef CHEROKEE_HTTP_H
#define CHEROKEE_HTTP_H

#include <cherokee/common.h>
#include <cherokee/buffer.h>


CHEROKEE_BEGIN_DECLS

typedef enum {
http_version_09,
http_version_10,
http_version_11,
http_version_unknown
} cherokee_http_version_t;

typedef enum {
http_unknown = 0LL,
http_all_methods = 0x1FFFFFFFFLL,

http_get = 1,
http_post = 1LL << 1,
http_head = 1LL << 2,
http_put = 1LL << 3,
http_options = 1LL << 4,
http_delete = 1LL << 5,
http_trace = 1LL << 6,
http_connect = 1LL << 7,

http_copy = 1LL << 8,
http_lock = 1LL << 9,
http_mkcol = 1LL << 10,
http_move = 1LL << 11,
http_notify = 1LL << 12,
http_poll = 1LL << 13,
http_propfind = 1LL << 14,
http_proppatch = 1LL << 15,
http_search = 1LL << 16,
http_subscribe = 1LL << 17,
http_unlock = 1LL << 18,
http_unsubscribe = 1LL << 19,
http_report = 1LL << 20,
http_patch = 1LL << 21,
http_version_control = 1LL << 22,
http_checkout = 1LL << 23,
http_uncheckout = 1LL << 24,
http_checkin = 1LL << 25,
http_update = 1LL << 26,
http_label = 1LL << 27,
http_mkworkspace = 1LL << 28,
http_mkactivity = 1LL << 29,
http_baseline_control = 1LL << 30,
http_merge = 1LL << 31,
http_invalid = 1LL << 32,
http_purge = 1LL << 33
} cherokee_http_method_t;

#define cherokee_http_method_LENGTH 33
#define HTTP_METHOD(x) ((cherokee_http_method_t)(x))


typedef enum {
http_auth_nothing = 0,
http_auth_basic = 1,
http_auth_digest = 1 << 1
} cherokee_http_auth_t;

typedef enum {
http_upgrade_nothing,
http_upgrade_http11,
http_upgrade_tls10
} cherokee_http_upgrade_t;

typedef enum { /* Protocol RFC Section */
http_unset = 0,
http_continue = 100, /* HTTP/1.1 2616 10.1.1 */
http_switching_protocols = 101, /* HTTP/1.1 2616 10.1.2 */
http_processing = 102, /* WebDAV 2518 10.1 */
http_ok = 200, /* HTTP/1.1 2616 10.2.1 */
http_created = 201, /* HTTP/1.1 2616 10.2.2 */
http_accepted = 202, /* HTTP/1.1 2616 10.2.3 */
http_non_authoritative_info = 203, /* HTTP/1.1 2616 10.2.4 */
http_no_content = 204, /* HTTP/1.1 2616 10.2.5 */
http_reset_content = 205, /* HTTP/1.1 2616 10.2.6 */
http_partial_content = 206, /* HTTP/1.1 2616 10.2.6 */
http_multi_status = 207, /* WebDAV 2518 10.2 */
http_im_used = 226, /* Delta 3229 10.4.1 */
http_multiple_choices = 300, /* HTTP/1.1 2616 10.3.1 */
http_moved_permanently = 301, /* HTTP/1.1 2616 10.3.2 */
http_moved_temporarily = 302, /* HTTP/1.1 2616 10.3.3 */
  http_see_other = 303, /* HTTP/1.1 2616 10.3.4 */
http_not_modified = 304, /* HTTP/1.1 2616 10.3.5 */
http_use_proxy = 305, /* HTTP/1.1 2616 10.3.6 */
http_temporary_redirect = 307, /* HTTP/1.1 2616 10.3.8 */
http_bad_request = 400, /* HTTP/1.1 2616 10.4.1 */
http_unauthorized = 401, /* HTTP/1.1 2616 10.4.2 */
http_payment_required = 402, /* HTTP/1.1 2616 10.4.3 */
http_access_denied = 403, /* HTTP/1.1 2616 10.4.4 */
http_not_found = 404, /* HTTP/1.1 2616 10.4.5 */
http_method_not_allowed = 405, /* HTTP/1.1 2616 10.4.6 */
http_not_acceptable = 406, /* HTTP/1.1 2616 10.4.7 */
http_proxy_auth_required = 407, /* HTTP/1.1 2616 10.4.8 */
http_request_timeout = 408, /* HTTP/1.1 2616 10.4.9 */
http_conflict = 409, /* HTTP/1.1 2616 10.4.10 */
http_gone = 410, /* HTTP/1.1 2616 10.4.11 */
http_length_required = 411, /* HTTP/1.1 2616 10.4.12 */
http_precondition_failed = 412, /* HTTP/1.1 2616 10.4.13 */
  http_request_entity_too_large = 413, /* HTTP/1.1 2616 10.4.14 */
http_request_uri_too_long = 414, /* HTTP/1.1 2616 10.4.15 */
http_unsupported_media_type = 415, /* HTTP/1.1 2616 10.4.16 */
http_range_not_satisfiable = 416, /* HTTP/1.1 2616 10.4.17 */
http_expectation_failed = 417, /* HTTP/1.1 2616 10.4.18 */
http_unprocessable_entity = 422, /* WebDAV 2518 10.3 */
http_locked = 423, /* WebDAV 2518 10.4 */
http_failed_dependency = 424, /* WebDAV 2518 10.5 */
http_unordered_collection = 425, /* WebDAV 3648 */
http_upgrade_required = 426, /* TLS upgr 2817 6 */
http_retry_with = 449, /* Microsoft extension */
http_internal_error = 500, /* HTTP/1.1 2616 10.5.1 */
http_not_implemented = 501, /* HTTP/1.1 2616 10.5.2 */
http_bad_gateway = 502, /* HTTP/1.1 2616 10.5.3 */
http_service_unavailable = 503, /* HTTP/1.1 2616 10.5.4 */
http_gateway_timeout = 504, /* HTTP/1.1 2616 10.5.5 */
http_version_not_supported = 505, /* HTTP/1.1 2616 10.5.6 */
http_variant_also_negotiates = 506, /* HTTP/1.1 2295 8.1 */
http_insufficient_storage = 507, /* HTTP/1.1 2616 10.6 */
http_bandwidth_limit_exceeded = 509, /* Apache extension */
http_not_extended = 510 /* HTTP Ext 2774 7 */
} cherokee_http_t;

#define http_continue_string "100 Continue"
#define http_switching_protocols_string "101 Switching Protocols"
#define http_processing_string "102 Processing"
#define http_ok_string "200 OK"
#define http_created_string "201 Created"
#define http_accepted_string "202 Accepted"
#define http_non_authoritative_info_string "203 Non-Authoritative Information"
#define http_no_content_string "204 No Content"
#define http_reset_content_string "205 Reset Content"
#define http_partial_content_string "206 Partial Content"
#define http_multi_status_string "207 Multi-Status"
#define http_im_used_string "226 IM Used"
#define http_multiple_choices_string "300 Multiple Choices"
#define http_moved_permanently_string "301 Moved Permanently"
#define http_moved_temporarily_string "302 Moved Temporarily"
#define http_see_other_string "303 See Other"
#define http_not_modified_string "304 Not Modified"
#define http_use_proxy_string "305 Use Proxy"
#define http_temporary_redirect_string "307 Temporary Redirect"
#define http_bad_request_string "400 Bad Request"
#define http_unauthorized_string "401 Authorization Required"
#define http_payment_required_string "402 Payment Required"
#define http_access_denied_string "403 Forbidden"
#define http_not_found_string "404 Not Found"
#define http_method_not_allowed_string "405 Method Not Allowed"
#define http_not_acceptable_string "406 Not Acceptable"
#define http_proxy_auth_required_string "407 Proxy Authentication Required"
#define http_request_timeout_string "408 Request Time-out"
#define http_conflict_string "409 Conflict"
#define http_gone_string "410 Gone"
#define http_length_required_string "411 Length Required"
#define http_precondition_failed_string "412 Precondition Failed"
#define http_request_entity_too_large_string "413 Request Entity too large"
#define http_request_uri_too_long_string "414 Request-URI too long"
#define http_unsupported_media_type_string "415 Unsupported Media Type"
#define http_range_not_satisfiable_string "416 Requested range not satisfiable"
#define http_expectation_failed_string "417 Expectation Failed"
#define http_unprocessable_entity_string "422 Unprocessable Entity"
#define http_locked_string "423 Locked"
#define http_failed_dependency_string "424 Failed Dependency"
#define http_unordered_collection_string "425 Unordered Collection"
#define http_upgrade_required_string "426 Upgrade Required"
#define http_retry_with_string "449 Retry With"
#define http_internal_error_string "500 Internal Server Error"
#define http_not_implemented_string "501 Not Implemented"
#define http_bad_gateway_string "502 Bad gateway"
#define http_service_unavailable_string "503 Service Unavailable"
#define http_gateway_timeout_string "504 Gateway Timeout"
#define http_version_not_supported_string "505 HTTP Version Not Supported"
#define http_variant_also_negotiates_string "506 Variant Also Negotiates"
#define http_insufficient_storage_string "507 Insufficient Storage"
#define http_bandwidth_limit_exceeded_string "509 Bandwidth Limit Exceeded"
#define http_not_extended_string "510 Not Extended"

#define http_type_100_max 102
#define http_type_200_max 207
#define http_type_300_max 307
#define http_type_400_max 449
#define http_type_500_max 510

#define http_type_100(c) ((c >= 100) && (c <= http_type_100_max))
#define http_type_200(c) ((c >= 200) && (c <= http_type_200_max))
#define http_type_300(c) ((c >= 300) && (c <= http_type_300_max))
#define http_type_400(c) ((c >= 400) && (c <= http_type_400_max))
#define http_type_500(c) ((c >= 500) && (c <= http_type_500_max))

#define http_method_with_body(m) ((m) != http_head)

/* RFC 2518, RFC 2616, RFC3253, RFC 5789 */
#define http_method_with_input(m) ((m == http_post) || \
(m == http_put) || \
(m == http_merge) || \
(m == http_search) || \
(m == http_report) || \
(m == http_patch) || \
(m == http_propfind) || \
(m == http_proppatch) || \
(m == http_update) || \
(m == http_label))

#define http_method_with_optional_input(m) ((m == http_options) || \
(m == http_delete) || \
(m == http_mkcol) || \
(m == http_copy) || \
(m == http_move) || \
(m == http_lock) || \
(m == http_unlock) || \
(m == http_version_control) || \
(m == http_checkout) || \
(m == http_uncheckout) || \
(m == http_checkin) || \
(m == http_mkworkspace) || \
(m == http_mkactivity) || \
(m == http_baseline_control))


/* RFC 2616: Section 4.3 */
#define http_code_with_body(e) ((! http_type_100(e)) /* 1xx */ && \
((e) != http_no_content) /* 204 */ && \
((e) != http_not_modified)) /* 304 */

#define http_port_is_standard(port,is_tls) (((! is_tls) && (port == 80)) || \
(( is_tls) && (port == 443)))

ret_t cherokee_http_method_to_string (cherokee_http_method_t method, const char **str, cuint_t *str_len);
ret_t cherokee_http_string_to_method (cherokee_buffer_t *string, cherokee_http_method_t *method);
ret_t cherokee_http_version_to_string (cherokee_http_version_t version, const char **str, cuint_t *str_len);
ret_t cherokee_http_code_to_string (cherokee_http_t code, const char **str);
ret_t cherokee_http_code_copy (cherokee_http_t code, cherokee_buffer_t *buf);

CHEROKEE_END_DECLS

#endif /* CHEROKEE_HTTP_H */
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