/*
* Copyright 2003 James Bursa <bursa@users.sourceforge.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf 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, see <http://www.gnu.org/licenses/>.
*/
/** \file
* Fetching of data from a URL (interface).
*/
#ifndef _NETSURF_DESKTOP_FETCH_H_
#define _NETSURF_DESKTOP_FETCH_H_
#include <stdbool.h>
#include <libwapcaplet/libwapcaplet.h>
#include "utils/config.h"
#include "utils/nsurl.h"
struct content;
struct fetch;
struct ssl_cert_info;
typedef enum {
FETCH_PROGRESS,
FETCH_HEADER,
FETCH_DATA,
FETCH_FINISHED,
FETCH_ERROR,
FETCH_REDIRECT,
FETCH_NOTMODIFIED,
FETCH_AUTH,
FETCH_CERT_ERR,
FETCH_SSL_ERR
} fetch_msg_type;
typedef struct fetch_msg {
fetch_msg_type type;
union {
const char *progress;
struct {
const uint8_t *buf;
size_t len;
} header_or_data;
const char *error;
/** \todo Use nsurl */
const char *redirect;
struct {
const char *realm;
} auth;
struct {
const struct ssl_cert_info *certs;
size_t num_certs;
} cert_err;
} data;
} fetch_msg;
/** Fetch POST multipart data */
struct fetch_multipart_data {
bool file; /**< Item is a file */
char *name; /**< Name of item */
char *value; /**< Item value */
struct fetch_multipart_data *next; /**< Next in linked list */
};
struct ssl_cert_info {
long version; /**< Certificate version */
char not_before[32]; /**< Valid from date */
char not_after[32]; /**< Valid to date */
int sig_type; /**< Signature type */
long serial; /**< Serial number */
char issuer[256]; /**< Issuer details */
char subject[256]; /**< Subject details */
int cert_type; /**< Certificate type */
};
extern bool fetch_active;
typedef void (*fetch_callback)(const fetch_msg *msg, void *p);
void fetch_init(void);
struct fetch * fetch_start(nsurl *url, nsurl *referer,
fetch_callback callback,
void *p, bool only_2xx, const char *post_urlenc,
const struct fetch_multipart_data *post_multipart,
bool verifiable, bool downgrade_tls,
const char *headers[]);
void fetch_abort(struct fetch *f);
void fetch_poll(void);
void fetch_quit(void);
const char *fetch_filetype(const char *unix_path);
char *fetch_mimetype(const char *ro_path);
bool fetch_can_fetch(const nsurl *url);
void fetch_change_callback(struct fetch *fetch,
fetch_callback callback,
void *p);
long fetch_http_code(struct fetch *fetch);
bool fetch_get_verifiable(struct fetch *fetch);
void fetch_multipart_data_destroy(struct fetch_multipart_data *list);
struct fetch_multipart_data *fetch_multipart_data_clone(
const struct fetch_multipart_data *list);
/* API for fetchers themselves */
typedef bool (*fetcher_initialise)(lwc_string *scheme);
typedef bool (*fetcher_can_fetch)(const nsurl *url);
typedef void *(*fetcher_setup_fetch)(struct fetch *parent_fetch, nsurl *url,
bool only_2xx, bool downgrade_tls, const char *post_urlenc,
const struct fetch_multipart_data *post_multipart,
const char **headers);
typedef bool (*fetcher_start_fetch)(void *fetch);
typedef void (*fetcher_abort_fetch)(void *fetch);
typedef void (*fetcher_free_fetch)(void *fetch);
typedef void (*fetcher_poll_fetcher)(lwc_string *scheme);
typedef void (*fetcher_finalise)(lwc_string *scheme);
/** Register a fetcher for a scheme
*
* \param scheme scheme fetcher is for (caller relinquishes ownership)
* \param initialiser fetcher initialiser
* \param can_fetch fetcher can fetch function
* \param setup_fetch fetcher fetch setup function
* \param start_fetch fetcher fetch start function
* \param abort_fetch fetcher fetch abort function
* \param free_fetch fetcher fetch free function
* \param poll_fetcher fetcher poll function
* \param finaliser fetcher finaliser
* \return true iff success
*/
bool fetch_add_fetcher(lwc_string *scheme,
fetcher_initialise initialiser,
fetcher_can_fetch can_fetch,
fetcher_setup_fetch setup_fetch,
fetcher_start_fetch start_fetch,
fetcher_abort_fetch abort_fetch,
fetcher_free_fetch free_fetch,
fetcher_poll_fetcher poll_fetcher,
fetcher_finalise finaliser);
void fetch_send_callback(const fetch_msg *msg, struct fetch *fetch);
void fetch_remove_from_queues(struct fetch *fetch);
void fetch_free(struct fetch *f);
void fetch_set_http_code(struct fetch *fetch, long http_code);
const char *fetch_get_referer_to_send(struct fetch *fetch);
void fetch_set_cookie(struct fetch *fetch, const char *data);
#endif