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/*
* Copyright (C) Igor Sysoev
* Copyright (C) NGINX, Inc.
*/
#ifndef _NXT_HTTP_H_INCLUDED_
#define _NXT_HTTP_H_INCLUDED_
#include <nxt_regex.h>
typedef enum {
NXT_HTTP_UNSET = -1,
NXT_HTTP_INVALID = 0,
NXT_HTTP_CONTINUE = 100,
NXT_HTTP_SWITCHING_PROTOCOLS = 101,
NXT_HTTP_OK = 200,
NXT_HTTP_NO_CONTENT = 204,
NXT_HTTP_MULTIPLE_CHOICES = 300,
NXT_HTTP_MOVED_PERMANENTLY = 301,
NXT_HTTP_FOUND = 302,
NXT_HTTP_SEE_OTHER = 303,
NXT_HTTP_NOT_MODIFIED = 304,
NXT_HTTP_TEMPORARY_REDIRECT = 307,
NXT_HTTP_PERMANENT_REDIRECT = 308,
NXT_HTTP_BAD_REQUEST = 400,
NXT_HTTP_FORBIDDEN = 403,
NXT_HTTP_NOT_FOUND = 404,
NXT_HTTP_METHOD_NOT_ALLOWED = 405,
NXT_HTTP_REQUEST_TIMEOUT = 408,
NXT_HTTP_LENGTH_REQUIRED = 411,
NXT_HTTP_PAYLOAD_TOO_LARGE = 413,
NXT_HTTP_URI_TOO_LONG = 414,
NXT_HTTP_UPGRADE_REQUIRED = 426,
NXT_HTTP_REQUEST_HEADER_FIELDS_TOO_LARGE = 431,
NXT_HTTP_TO_HTTPS = 497,
NXT_HTTP_INTERNAL_SERVER_ERROR = 500,
NXT_HTTP_NOT_IMPLEMENTED = 501,
NXT_HTTP_BAD_GATEWAY = 502,
NXT_HTTP_SERVICE_UNAVAILABLE = 503,
NXT_HTTP_GATEWAY_TIMEOUT = 504,
NXT_HTTP_VERSION_NOT_SUPPORTED = 505,
NXT_HTTP_SERVER_ERROR_MAX = 599,
NXT_HTTP_STATUS_MAX = 999,
} nxt_http_status_t;
typedef enum {
NXT_HTTP_TE_NONE = 0,
NXT_HTTP_TE_CHUNKED = 1,
NXT_HTTP_TE_UNSUPPORTED = 2,
} nxt_http_te_t;
typedef enum {
NXT_HTTP_PROTO_H1 = 0,
NXT_HTTP_PROTO_H2,
NXT_HTTP_PROTO_DEVNULL,
} nxt_http_protocol_t;
typedef struct {
nxt_work_handler_t ready_handler;
nxt_work_handler_t error_handler;
} nxt_http_request_state_t;
typedef struct nxt_h1proto_s nxt_h1proto_t;
struct nxt_h1p_websocket_timer_s {
nxt_timer_t timer;
nxt_h1proto_t *h1p;
nxt_msec_t keepalive_interval;
};
typedef union {
void *any;
nxt_h1proto_t *h1;
} nxt_http_proto_t;
#define nxt_http_field_name_set(_field, _name) \
do { \
(_field)->name_length = nxt_length(_name); \
(_field)->name = (u_char *) _name; \
} while (0)
#define nxt_http_field_set(_field, _name, _value) \
do { \
(_field)->name_length = nxt_length(_name); \
(_field)->value_length = nxt_length(_value); \
(_field)->name = (u_char *) _name; \
(_field)->value = (u_char *) _value; \
} while (0)
typedef struct {
nxt_list_t *fields;
nxt_http_field_t *date;
nxt_http_field_t *content_type;
nxt_http_field_t *content_length;
nxt_off_t content_length_n;
} nxt_http_response_t;
typedef struct nxt_upstream_server_s nxt_upstream_server_t;
typedef struct {
nxt_http_proto_t proto;
nxt_http_request_t *request;
nxt_upstream_server_t *server;
nxt_list_t *fields;
nxt_buf_t *body;
nxt_http_status_t status:16;
nxt_http_protocol_t protocol:8; /* 2 bits */
uint8_t header_received; /* 1 bit */
uint8_t closed; /* 1 bit */
} nxt_http_peer_t;
struct nxt_http_request_s {
nxt_http_proto_t proto;
nxt_socket_conf_joint_t *conf;
nxt_mp_t *mem_pool;
nxt_buf_t *body;
nxt_buf_t *ws_frame;
nxt_buf_t *out;
const nxt_http_request_state_t *state;
nxt_str_t host;
nxt_str_t server_name;
nxt_str_t target;
nxt_str_t version;
nxt_str_t *method;
nxt_str_t *path;
nxt_str_t *args;
nxt_array_t *arguments; /* of nxt_http_name_value_t */
nxt_array_t *cookies; /* of nxt_http_name_value_t */
nxt_list_t *fields;
nxt_http_field_t *content_type;
nxt_http_field_t *content_length;
nxt_http_field_t *cookie;
nxt_http_field_t *referer;
nxt_http_field_t *user_agent;
nxt_off_t content_length_n;
nxt_sockaddr_t *remote;
nxt_sockaddr_t *local;
void *tls;
nxt_task_t task;
nxt_timer_t timer;
void *timer_data;
nxt_var_query_t *var_query;
void *req_rpc_data;
#if (NXT_HAVE_REGEX)
nxt_regex_match_t *regex_match;
#endif
nxt_http_peer_t *peer;
nxt_buf_t *last;
nxt_queue_link_t app_link; /* nxt_app_t.ack_waiting_req */
nxt_event_engine_t *engine;
nxt_work_t err_work;
nxt_http_response_t resp;
nxt_http_status_t status:16;
uint8_t pass_count; /* 8 bits */
uint8_t app_target;
nxt_http_protocol_t protocol:8; /* 2 bits */
uint8_t logged; /* 1 bit */
uint8_t header_sent; /* 1 bit */
uint8_t inconsistent; /* 1 bit */
uint8_t error; /* 1 bit */
uint8_t websocket_handshake; /* 1 bit */
};
typedef struct nxt_http_route_s nxt_http_route_t;
struct nxt_http_action_s {
nxt_http_action_t *(*handler)(nxt_task_t *task,
nxt_http_request_t *r,
nxt_http_action_t *action);
union {
nxt_http_route_t *route;
nxt_app_t *application;
nxt_http_action_t *fallback;
nxt_upstream_t *upstream;
uint32_t upstream_number;
nxt_http_status_t return_code;
nxt_var_t *var;
} u;
nxt_str_t name;
nxt_int_t target;
};
typedef struct {
void (*body_read)(nxt_task_t *task, nxt_http_request_t *r);
void (*local_addr)(nxt_task_t *task, nxt_http_request_t *r);
void (*header_send)(nxt_task_t *task, nxt_http_request_t *r,
nxt_work_handler_t body_handler, void *data);
void (*send)(nxt_task_t *task, nxt_http_request_t *r, nxt_buf_t *out);
nxt_off_t (*body_bytes_sent)(nxt_task_t *task, nxt_http_proto_t proto);
void (*discard)(nxt_task_t *task, nxt_http_request_t *r, nxt_buf_t *last);
void (*close)(nxt_task_t *task, nxt_http_proto_t proto,
nxt_socket_conf_joint_t *joint);
void (*peer_connect)(nxt_task_t *task, nxt_http_peer_t *peer);
void (*peer_header_send)(nxt_task_t *task, nxt_http_peer_t *peer);
void (*peer_header_read)(nxt_task_t *task, nxt_http_peer_t *peer);
void (*peer_read)(nxt_task_t *task, nxt_http_peer_t *peer);
void (*peer_close)(nxt_task_t *task, nxt_http_peer_t *peer);
void (*ws_frame_start)(nxt_task_t *task, nxt_http_request_t *r,
nxt_buf_t *ws_frame);
} nxt_http_proto_table_t;
#define NXT_HTTP_DATE_LEN nxt_length("Wed, 31 Dec 1986 16:40:00 GMT")
nxt_inline u_char *
nxt_http_date(u_char *buf, struct tm *tm)
{
static const char *week[] = { "Sun", "Mon", "Tue", "Wed", "Thu", "Fri",
"Sat" };
static const char *month[] = { "Jan", "Feb", "Mar", "Apr", "May", "Jun",
"Jul", "Aug", "Sep", "Oct", "Nov", "Dec" };
return nxt_sprintf(buf, buf + NXT_HTTP_DATE_LEN,
"%s, %02d %s %4d %02d:%02d:%02d GMT",
week[tm->tm_wday], tm->tm_mday,
month[tm->tm_mon], tm->tm_year + 1900,
tm->tm_hour, tm->tm_min, tm->tm_sec);
}
nxt_int_t nxt_http_init(nxt_task_t *task);
nxt_int_t nxt_h1p_init(nxt_task_t *task);
nxt_int_t nxt_http_response_hash_init(nxt_task_t *task);
void nxt_http_conn_init(nxt_task_t *task, void *obj, void *data);
nxt_http_request_t *nxt_http_request_create(nxt_task_t *task);
void nxt_http_request_error(nxt_task_t *task, nxt_http_request_t *r,
nxt_http_status_t status);
void nxt_http_request_read_body(nxt_task_t *task, nxt_http_request_t *r);
void nxt_http_request_header_send(nxt_task_t *task, nxt_http_request_t *r,
nxt_work_handler_t body_handler, void *data);
void nxt_http_request_ws_frame_start(nxt_task_t *task, nxt_http_request_t *r,
nxt_buf_t *ws_frame);
void nxt_http_request_send(nxt_task_t *task, nxt_http_request_t *r,
nxt_buf_t *out);
nxt_buf_t *nxt_http_buf_mem(nxt_task_t *task, nxt_http_request_t *r,
size_t size);
nxt_buf_t *nxt_http_buf_last(nxt_http_request_t *r);
void nxt_http_request_error_handler(nxt_task_t *task, void *obj, void *data);
void nxt_http_request_close_handler(nxt_task_t *task, void *obj, void *data);
nxt_int_t nxt_http_request_host(void *ctx, nxt_http_field_t *field,
uintptr_t data);
nxt_int_t nxt_http_request_field(void *ctx, nxt_http_field_t *field,
uintptr_t offset);
nxt_int_t nxt_http_request_content_length(void *ctx, nxt_http_field_t *field,
uintptr_t data);
nxt_http_routes_t *nxt_http_routes_create(nxt_task_t *task,
nxt_router_temp_conf_t *tmcf, nxt_conf_value_t *routes_conf);
nxt_http_action_t *nxt_http_action_create(nxt_task_t *task,
nxt_router_temp_conf_t *tmcf, nxt_str_t *name);
nxt_int_t nxt_http_routes_resolve(nxt_task_t *task,
nxt_router_temp_conf_t *tmcf);
nxt_int_t nxt_http_pass_segments(nxt_mp_t *mp, nxt_str_t *pass,
nxt_str_t *segments, nxt_uint_t n);
nxt_http_action_t *nxt_http_pass_application(nxt_task_t *task,
nxt_router_conf_t *rtcf, nxt_str_t *name);
nxt_int_t nxt_upstreams_create(nxt_task_t *task, nxt_router_temp_conf_t *tmcf,
nxt_conf_value_t *conf);
nxt_int_t nxt_upstreams_joint_create(nxt_router_temp_conf_t *tmcf,
nxt_upstream_t ***upstream_joint);
void nxt_http_request_action(nxt_task_t *task, nxt_http_request_t *r,
nxt_http_action_t *action);
nxt_http_action_t *nxt_http_return_handler(nxt_task_t *task,
nxt_http_request_t *r, nxt_http_action_t *action);
nxt_http_action_t *nxt_http_static_handler(nxt_task_t *task,
nxt_http_request_t *r, nxt_http_action_t *action);
nxt_int_t nxt_http_static_mtypes_init(nxt_mp_t *mp, nxt_lvlhsh_t *hash);
nxt_int_t nxt_http_static_mtypes_hash_add(nxt_mp_t *mp, nxt_lvlhsh_t *hash,
nxt_str_t *extension, nxt_str_t *type);
nxt_str_t *nxt_http_static_mtypes_hash_find(nxt_lvlhsh_t *hash,
nxt_str_t *extension);
nxt_http_action_t *nxt_http_application_handler(nxt_task_t *task,
nxt_http_request_t *r, nxt_http_action_t *action);
nxt_int_t nxt_upstream_find(nxt_upstreams_t *upstreams, nxt_str_t *name,
nxt_http_action_t *action);
nxt_http_action_t *nxt_upstream_proxy_handler(nxt_task_t *task,
nxt_http_request_t *r, nxt_upstream_t *upstream);
nxt_int_t nxt_http_proxy_create(nxt_mp_t *mp, nxt_http_action_t *action);
nxt_int_t nxt_http_proxy_date(void *ctx, nxt_http_field_t *field,
uintptr_t data);
nxt_int_t nxt_http_proxy_content_length(void *ctx, nxt_http_field_t *field,
uintptr_t data);
nxt_int_t nxt_http_proxy_skip(void *ctx, nxt_http_field_t *field,
uintptr_t data);
nxt_buf_t *nxt_http_proxy_buf_mem_alloc(nxt_task_t *task, nxt_http_request_t *r,
size_t size);
void nxt_http_proxy_buf_mem_free(nxt_task_t *task, nxt_http_request_t *r,
nxt_buf_t *b);
extern nxt_time_string_t nxt_http_date_cache;
extern nxt_lvlhsh_t nxt_response_fields_hash;
extern const nxt_http_proto_table_t nxt_http_proto[];
void nxt_h1p_websocket_first_frame_start(nxt_task_t *task,
nxt_http_request_t *r, nxt_buf_t *ws_frame);
void nxt_h1p_websocket_frame_start(nxt_task_t *task, nxt_http_request_t *r,
nxt_buf_t *ws_frame);
void nxt_h1p_complete_buffers(nxt_task_t *task, nxt_h1proto_t *h1p,
nxt_bool_t all);
nxt_msec_t nxt_h1p_conn_request_timer_value(nxt_conn_t *c, uintptr_t data);
extern const nxt_conn_state_t nxt_h1p_idle_close_state;
#endif /* _NXT_HTTP_H_INCLUDED_ */
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