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 * This file is part of the Sofia-SIP package
 * Copyright (C) 2005 Nokia Corporation.
 * Contact: Pekka Pessi <pekka.pessi@nokia.com>
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public License
 * as published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 * This library is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * Lesser General Public License for more details.
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA

/** Defined when <sofia-sip/http_header.h> has been included.*/

/**@file sofia-sip/http_header.h 
 * HTTP library prototypes.
 * @author Pekka Pessi <Pekka.Pessi@nokia.com>
 * @date  Created: Tue Jun 13 02:58:26 2000 ppessi

#ifndef SU_ALLOC_H
#include <sofia-sip/su_alloc.h>

#ifndef SU_TAG_H
#include <sofia-sip/su_tag.h>

#ifndef HTTP_H
#include <sofia-sip/http.h>

#ifndef MSG_HEADER_H
#include <sofia-sip/msg_header.h>


/* ----------------------------------------------------------------------
 * 1) Macros

/** Initialize a HTTP header structure. */
00061 #define HTTP_HEADER_INIT(h, http_class, size)               \
  ((void)memset((h), 0, (size)),                      \
   (void)(((msg_common_t *)(h))->h_class = (http_class)),   \

#define HTTP_METHOD_NAME(method, name) \
 ((method) == http_method_unknown ? (name) : http_method_name(method, name))

/* ----------------------------------------------------------------------
 * 2) Variables

SOFIAPUBVAR char const http_method_name_get[];
SOFIAPUBVAR char const http_method_name_post[];
SOFIAPUBVAR char const http_method_name_head[];
SOFIAPUBVAR char const http_method_name_options[];
SOFIAPUBVAR char const http_method_name_put[];
SOFIAPUBVAR char const http_method_name_delete[];
SOFIAPUBVAR char const http_method_name_trace[];
SOFIAPUBVAR char const http_method_name_connect[];

/** HTTP 0.9 */
00083 SOFIAPUBVAR char const http_version_0_9[];

/** HTTP 1.0 */
00086 SOFIAPUBVAR char const http_version_1_0[];

/** HTTP 1.1 version. */ 
00089 SOFIAPUBVAR char const http_version_1_1[];

#define HTTP_VERSION_CURRENT http_version_1_1

/* ----------------------------------------------------------------------
 * 3) Prototypes 

/** HTTP parser description. */
SOFIAPUBFUN msg_mclass_t const *http_default_mclass(void);

/** Complete a HTTP request. */
SOFIAPUBFUN int http_request_complete(msg_t *msg);

/** Complete a HTTP message. */
SOFIAPUBFUN int http_message_complete(msg_t *msg, http_t *http);

/** Add a duplicate of header object to a HTTP message. */
SOFIAPUBFUN int http_add_dup(msg_t *, http_t *, http_header_t const *);

/** Add a header to the HTTP message. */
SOFIAPUBFUN int http_add_make(msg_t *msg, http_t *http,
                        msg_hclass_t *hc, char const *s);

/** Add a header to the HTTP message. */
SOFIAPUBFUN int http_add_format(msg_t *msg, http_t *http, msg_hclass_t *hc,
                        char const *fmt, ...);

/** Add tagged headers to the HTTP message */
SOFIAPUBFUN int http_add_tl(msg_t *msg, http_t *http,
                      tag_type_t tag, tag_value_t value, ...);

/** Remove schema, host, and port from URL */
SOFIAPUBFUN int http_strip_hostport(url_t *url);

/** Add required headers to the response message */
SOFIAPUBFUN int http_complete_response(msg_t *msg,
                               int status, char const *phrase, 
                               http_t const *request);

/** Return string corresponding to the method. */
SOFIAPUBFUN char const *http_method_name(http_method_t method,
                               char const *name);

/** Return enum corresponding to the method name */
SOFIAPUBFUN http_method_t http_method_code(char const *name);

SOFIAPUBFUN http_t *http_object(msg_t *msg);
SOFIAPUBFUN int http_header_insert(msg_t *msg, http_t *http, http_header_t *h);
SOFIAPUBFUN int http_header_remove(msg_t *msg, http_t *http, http_header_t *h);
SOFIAPUBFUN char const *http_header_name(http_header_t const *h, int compact);
SOFIAPUBFUN void *http_header_data(http_header_t *h);
SOFIAPUBFUN http_content_length_t *http_content_length_create(su_home_t *home, 
                                                uint32_t n);
SOFIAPUBFUN http_payload_t *http_payload_create(su_home_t *home, 
                                    void const *data, usize_t len);
SOFIAPUBFUN http_separator_t *http_separator_create(su_home_t *home);

SOFIAPUBFUN http_header_t *http_header_format(su_home_t *home, msg_hclass_t *,
                                    char const *fmt, ...);

/** Create a request line object. */
SOFIAPUBFUN http_request_t *http_request_create(su_home_t *home,
                                    http_method_t method,
                                    const char *name,
                                    url_string_t const *url,
                                    char const *version);

/** Create a status line object. */
SOFIAPUBFUN http_status_t *http_status_create(su_home_t *home,
                                    unsigned status,
                                    char const *phrase,
                                    char const *version);

/** Create an @b Host header object. */
SOFIAPUBFUN http_host_t *http_host_create(su_home_t *home, 
                                char const *host,
                                char const *port);

/** Create an @b Date header object. */
SOFIAPUBFUN http_date_t *http_date_create(su_home_t *home, http_time_t t);

/** Create an @b Expires header object. */
SOFIAPUBFUN http_expires_t *http_expires_create(su_home_t *home,
                                    http_time_t delta);

/** Compare two HTTP URLs. */
SOFIAPUBFUN int http_url_cmp(url_t const *a, url_t const *b);

/** Parse query part in HTTP URL. */
SOFIAPUBFUN issize_t http_query_parse(char *query,
                              /* char const *key, char **return_value, */

/* ----------------------------------------------------------------------
 * 4) Inlined functions 

/** Get HTTP structure from msg. */
http_t *http_object(msg_t *msg)
  return (http_t *)msg_public(msg, HTTP_PROTOCOL_TAG);

/** Insert a (list of) header(s) to the header structure and fragment chain.
 * The function @c http_header_insert() inserts header or list of headers
 * into a HTTP message.  It also inserts them into the the message fragment
 * chain, if it exists.
 * When inserting headers into the fragment chain, a request (or status) is
 * inserted first and replaces the existing request (or status).  The Via
 * headers are inserted after the request or status, and rest of the headers
 * after request, status, or Via headers.
 * If the header is a singleton, existing headers with the same class are
 * removed.
 * @param msg message owning the fragment chain
 * @param http HTTP message structure to which header is added
 * @param h   list of header(s) to be added
int http_header_insert(msg_t *msg, http_t *http, http_header_t *h)
  return msg_header_insert(msg, (msg_pub_t *)http, (msg_header_t *)h);

/** Remove a header from a HTTP message. */ 
int http_header_remove(msg_t *msg, http_t *http, http_header_t *h)
  return msg_header_remove(msg, (msg_pub_t *)http, (msg_header_t *)h);

/** Return name of the header. */
char const *http_header_name(http_header_t const *h, int compact)
  if (compact && h->sh_class->hc_short[0])
    return h->sh_class->hc_short;
    return h->sh_class->hc_name;

/** Return data after header structure. */
void *http_header_data(http_header_t *h)
  return h && h != HTTP_NONE ? h->sh_class->hc_size + (char *)h : NULL;

http_content_length_t *http_content_length_create(su_home_t *home, uint32_t n)
  return msg_content_length_create(home, n);

http_payload_t *http_payload_create(su_home_t *home, void const *data, isize_t len)
  return msg_payload_create(home, data, len);

http_separator_t *http_separator_create(su_home_t *home)
  return msg_separator_create(home);


#include <sofia-sip/http_protos.h>

#endif /* !defined(HTTP_HEADER_H) */

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