/* * Copyright (C) Igor Sysoev * Copyright (C) NGINX, Inc. */ #ifndef _NXT_HTTP_H_INCLUDED_ #define _NXT_HTTP_H_INCLUDED_ #include 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_http_field_t *authorization; 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; typedef struct nxt_http_route_rule_s nxt_http_route_rule_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_upstream_t *upstream; uint32_t upstream_number; nxt_http_status_t return_code; nxt_var_t *var; struct { nxt_app_t *application; nxt_int_t target; } app; struct { nxt_str_t chroot; nxt_uint_t resolve; nxt_http_route_rule_t *types; nxt_http_action_t *fallback; } share; } u; nxt_str_t name; }; 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_http_route_test_rule(nxt_http_request_t *r, nxt_http_route_rule_t *rule, u_char *start, size_t length); 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_ */