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/*
* uhttpd - Tiny single-threaded httpd - Main header
*
* Copyright (C) 2010-2012 Jo-Philipp Wich <xm@subsignal.org>
* Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef __UHTTPD_H
#define __UHTTPD_H
#include <netinet/in.h>
#include <limits.h>
#include <dirent.h>
#include <libubox/list.h>
#include <libubox/uloop.h>
#include <libubox/ustream.h>
#include <libubox/blob.h>
#include "utils.h"
#define UH_LIMIT_CLIENTS 64
#define UH_LIMIT_HEADERS 64
#define UH_LIMIT_MSGHEAD 4096
struct config {
char docroot[PATH_MAX];
char *realm;
char *file;
char *error_handler;
int no_symlinks;
int no_dirlists;
int network_timeout;
int rfc1918_filter;
int tcp_keepalive;
int max_requests;
int http_keepalive;
int script_timeout;
};
struct auth_realm {
struct list_head list;
char path[PATH_MAX];
char user[32];
char pass[128];
};
enum http_method {
UH_HTTP_MSG_GET,
UH_HTTP_MSG_POST,
UH_HTTP_MSG_HEAD,
};
enum http_version {
UH_HTTP_VER_0_9,
UH_HTTP_VER_1_0,
UH_HTTP_VER_1_1,
};
struct http_request {
enum http_method method;
enum http_version version;
int redirect_status;
char *url;
struct auth_realm *realm;
};
struct http_response {
int statuscode;
char *statusmsg;
char *headers[UH_LIMIT_HEADERS];
};
enum client_state {
CLIENT_STATE_INIT,
CLIENT_STATE_HEADER,
CLIENT_STATE_DATA,
CLIENT_STATE_DONE,
CLIENT_STATE_CLOSE,
};
struct client {
struct list_head list;
int id;
struct ustream *us;
struct ustream_fd sfd;
#ifdef HAVE_TLS
struct ustream_ssl stream_ssl;
#endif
struct uloop_fd rpipe;
struct uloop_fd wpipe;
struct uloop_process proc;
struct uloop_timeout timeout;
bool (*cb)(struct client *);
void *priv;
enum client_state state;
struct http_request request;
struct http_response response;
struct sockaddr_in6 servaddr;
struct sockaddr_in6 peeraddr;
struct blob_buf hdr;
void (*dispatch_write_cb)(struct client *cl);
void (*dispatch_free)(struct client *cl);
union {
struct {
struct blob_attr **hdr;
int fd;
} file;
} data;
};
extern int n_clients;
extern struct config conf;
void uh_index_add(const char *filename);
void uh_accept_client(int fd);
void uh_unblock_listeners(void);
void uh_setup_listeners(void);
int uh_socket_bind(const char *host, const char *port, bool tls);
bool uh_use_chunked(struct client *cl);
void uh_chunk_write(struct client *cl, const void *data, int len);
void uh_chunk_vprintf(struct client *cl, const char *format, va_list arg);
void __printf(2, 3)
uh_chunk_printf(struct client *cl, const char *format, ...);
void uh_chunk_eof(struct client *cl);
void uh_request_done(struct client *cl);
void uh_http_header(struct client *cl, int code, const char *summary);
void __printf(4, 5)
uh_client_error(struct client *cl, int code, const char *summary, const char *fmt, ...);
void uh_handle_file_request(struct client *cl);
void uh_auth_add(const char *path, const char *user, const char *pass);
#endif
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