| /* | |
| * Copyright (C) Igor Sysoev | |
| */ | |
| #ifndef _NGX_HTTP_REQUEST_H_INCLUDED_ | |
| #define _NGX_HTTP_REQUEST_H_INCLUDED_ | |
| #define NGX_HTTP_MAX_URI_CHANGES 10 | |
| #define NGX_HTTP_MAX_SUBREQUESTS 50 | |
| /* must be 2^n */ | |
| #define NGX_HTTP_LC_HEADER_LEN 32 | |
| #define NGX_HTTP_DISCARD_BUFFER_SIZE 4096 | |
| #define NGX_HTTP_LINGERING_BUFFER_SIZE 4096 | |
| #define NGX_HTTP_VERSION_9 9 | |
| #define NGX_HTTP_VERSION_10 1000 | |
| #define NGX_HTTP_VERSION_11 1001 | |
| #define NGX_HTTP_UNKNOWN 0x0001 | |
| #define NGX_HTTP_GET 0x0002 | |
| #define NGX_HTTP_HEAD 0x0004 | |
| #define NGX_HTTP_POST 0x0008 | |
| #define NGX_HTTP_PUT 0x0010 | |
| #define NGX_HTTP_DELETE 0x0020 | |
| #define NGX_HTTP_MKCOL 0x0040 | |
| #define NGX_HTTP_COPY 0x0080 | |
| #define NGX_HTTP_MOVE 0x0100 | |
| #define NGX_HTTP_OPTIONS 0x0200 | |
| #define NGX_HTTP_PROPFIND 0x0400 | |
| #define NGX_HTTP_PROPPATCH 0x0800 | |
| #define NGX_HTTP_LOCK 0x1000 | |
| #define NGX_HTTP_UNLOCK 0x2000 | |
| #define NGX_HTTP_TRACE 0x4000 | |
| #define NGX_HTTP_CONNECTION_CLOSE 1 | |
| #define NGX_HTTP_CONNECTION_KEEP_ALIVE 2 | |
| #define NGX_NONE 1 | |
| #define NGX_HTTP_PARSE_HEADER_DONE 1 | |
| #define NGX_HTTP_CLIENT_ERROR 10 | |
| #define NGX_HTTP_PARSE_INVALID_METHOD 10 | |
| #define NGX_HTTP_PARSE_INVALID_REQUEST 11 | |
| #define NGX_HTTP_PARSE_INVALID_09_METHOD 12 | |
| #define NGX_HTTP_PARSE_INVALID_HEADER 13 | |
| #define NGX_HTTP_ZERO_IN_URI 1 | |
| #define NGX_HTTP_SUBREQUEST_IN_MEMORY 2 | |
| #define NGX_HTTP_SUBREQUEST_WAITED 4 | |
| #define NGX_HTTP_OK 200 | |
| #define NGX_HTTP_CREATED 201 | |
| #define NGX_HTTP_NO_CONTENT 204 | |
| #define NGX_HTTP_PARTIAL_CONTENT 206 | |
| #define NGX_HTTP_SPECIAL_RESPONSE 300 | |
| #define NGX_HTTP_MOVED_PERMANENTLY 301 | |
| #define NGX_HTTP_MOVED_TEMPORARILY 302 | |
| #define NGX_HTTP_NOT_MODIFIED 304 | |
| #define NGX_HTTP_BAD_REQUEST 400 | |
| #define NGX_HTTP_UNAUTHORIZED 401 | |
| #define NGX_HTTP_FORBIDDEN 403 | |
| #define NGX_HTTP_NOT_FOUND 404 | |
| #define NGX_HTTP_NOT_ALLOWED 405 | |
| #define NGX_HTTP_REQUEST_TIME_OUT 408 | |
| #define NGX_HTTP_CONFLICT 409 | |
| #define NGX_HTTP_LENGTH_REQUIRED 411 | |
| #define NGX_HTTP_PRECONDITION_FAILED 412 | |
| #define NGX_HTTP_REQUEST_ENTITY_TOO_LARGE 413 | |
| #define NGX_HTTP_REQUEST_URI_TOO_LARGE 414 | |
| #define NGX_HTTP_UNSUPPORTED_MEDIA_TYPE 415 | |
| #define NGX_HTTP_RANGE_NOT_SATISFIABLE 416 | |
| /* Our own HTTP codes */ | |
| /* The special code to close connection without any response */ | |
| #define NGX_HTTP_CLOSE 444 | |
| #define NGX_HTTP_OWN_CODES 495 | |
| #define NGX_HTTPS_CERT_ERROR 495 | |
| #define NGX_HTTPS_NO_CERT 496 | |
| /* | |
| * We use the special code for the plain HTTP requests that are sent to | |
| * HTTPS port to distinguish it from 4XX in an error page redirection | |
| */ | |
| #define NGX_HTTP_TO_HTTPS 497 | |
| /* 498 is the canceled code for the requests with invalid host name */ | |
| /* | |
| * HTTP does not define the code for the case when a client closed | |
| * the connection while we are processing its request so we introduce | |
| * own code to log such situation when a client has closed the connection | |
| * before we even try to send the HTTP header to it | |
| */ | |
| #define NGX_HTTP_CLIENT_CLOSED_REQUEST 499 | |
| #define NGX_HTTP_INTERNAL_SERVER_ERROR 500 | |
| #define NGX_HTTP_NOT_IMPLEMENTED 501 | |
| #define NGX_HTTP_BAD_GATEWAY 502 | |
| #define NGX_HTTP_SERVICE_UNAVAILABLE 503 | |
| #define NGX_HTTP_GATEWAY_TIME_OUT 504 | |
| #define NGX_HTTP_INSUFFICIENT_STORAGE 507 | |
| #define NGX_HTTP_LOWLEVEL_BUFFERED 0xf0 | |
| #define NGX_HTTP_WRITE_BUFFERED 0x10 | |
| #define NGX_HTTP_GZIP_BUFFERED 0x20 | |
| #define NGX_HTTP_SSI_BUFFERED 0x01 | |
| #define NGX_HTTP_SUB_BUFFERED 0x02 | |
| #define NGX_HTTP_COPY_BUFFERED 0x04 | |
| typedef enum { | |
| NGX_HTTP_INITING_REQUEST_STATE = 0, | |
| NGX_HTTP_READING_REQUEST_STATE, | |
| NGX_HTTP_PROCESS_REQUEST_STATE, | |
| NGX_HTTP_CONNECT_UPSTREAM_STATE, | |
| NGX_HTTP_WRITING_UPSTREAM_STATE, | |
| NGX_HTTP_READING_UPSTREAM_STATE, | |
| NGX_HTTP_WRITING_REQUEST_STATE, | |
| NGX_HTTP_LINGERING_CLOSE_STATE, | |
| NGX_HTTP_KEEPALIVE_STATE | |
| } ngx_http_state_e; | |
| typedef struct { | |
| ngx_str_t name; | |
| ngx_uint_t offset; | |
| ngx_http_header_handler_pt handler; | |
| } ngx_http_header_t; | |
| typedef struct { | |
| ngx_str_t name; | |
| ngx_uint_t offset; | |
| } ngx_http_header_out_t; | |
| typedef struct { | |
| ngx_list_t headers; | |
| ngx_table_elt_t *host; | |
| ngx_table_elt_t *connection; | |
| ngx_table_elt_t *if_modified_since; | |
| ngx_table_elt_t *user_agent; | |
| ngx_table_elt_t *referer; | |
| ngx_table_elt_t *content_length; | |
| ngx_table_elt_t *content_type; | |
| ngx_table_elt_t *range; | |
| ngx_table_elt_t *if_range; | |
| ngx_table_elt_t *transfer_encoding; | |
| ngx_table_elt_t *expect; | |
| #if (NGX_HTTP_GZIP) | |
| ngx_table_elt_t *accept_encoding; | |
| ngx_table_elt_t *via; | |
| #endif | |
| ngx_table_elt_t *authorization; | |
| ngx_table_elt_t *keep_alive; | |
| #if (NGX_HTTP_PROXY || NGX_HTTP_REALIP) | |
| ngx_table_elt_t *x_forwarded_for; | |
| #endif | |
| #if (NGX_HTTP_REALIP) | |
| ngx_table_elt_t *x_real_ip; | |
| #endif | |
| #if (NGX_HTTP_HEADERS) | |
| ngx_table_elt_t *accept; | |
| ngx_table_elt_t *accept_language; | |
| #endif | |
| #if (NGX_HTTP_DAV) | |
| ngx_table_elt_t *depth; | |
| ngx_table_elt_t *destination; | |
| ngx_table_elt_t *overwrite; | |
| ngx_table_elt_t *date; | |
| #endif | |
| ngx_str_t user; | |
| ngx_str_t passwd; | |
| ngx_array_t cookies; | |
| ngx_str_t server; | |
| off_t content_length_n; | |
| time_t keep_alive_n; | |
| unsigned connection_type:2; | |
| unsigned msie:1; | |
| unsigned msie4:1; | |
| unsigned msie6:1; | |
| unsigned opera:1; | |
| unsigned gecko:1; | |
| unsigned konqueror:1; | |
| } ngx_http_headers_in_t; | |
| typedef struct { | |
| ngx_list_t headers; | |
| ngx_uint_t status; | |
| ngx_str_t status_line; | |
| ngx_table_elt_t *server; | |
| ngx_table_elt_t *date; | |
| ngx_table_elt_t *content_length; | |
| ngx_table_elt_t *content_encoding; | |
| ngx_table_elt_t *location; | |
| ngx_table_elt_t *refresh; | |
| ngx_table_elt_t *last_modified; | |
| ngx_table_elt_t *content_range; | |
| ngx_table_elt_t *accept_ranges; | |
| ngx_table_elt_t *www_authenticate; | |
| ngx_table_elt_t *expires; | |
| ngx_table_elt_t *etag; | |
| ngx_str_t *override_charset; | |
| size_t content_type_len; | |
| ngx_str_t content_type; | |
| ngx_str_t charset; | |
| u_char *content_type_lowcase; | |
| ngx_uint_t content_type_hash; | |
| ngx_array_t cache_control; | |
| off_t content_length_n; | |
| time_t date_time; | |
| time_t last_modified_time; | |
| } ngx_http_headers_out_t; | |
| typedef void (*ngx_http_client_body_handler_pt)(ngx_http_request_t *r); | |
| typedef struct { | |
| ngx_temp_file_t *temp_file; | |
| ngx_chain_t *bufs; | |
| ngx_buf_t *buf; | |
| off_t rest; | |
| ngx_chain_t *to_write; | |
| ngx_http_client_body_handler_pt post_handler; | |
| } ngx_http_request_body_t; | |
| typedef struct { | |
| ngx_http_request_t *request; | |
| ngx_buf_t **busy; | |
| ngx_int_t nbusy; | |
| ngx_buf_t **free; | |
| ngx_int_t nfree; | |
| ngx_uint_t pipeline; /* unsigned pipeline:1; */ | |
| } ngx_http_connection_t; | |
| typedef struct ngx_http_server_name_s ngx_http_server_name_t; | |
| typedef struct { | |
| ngx_hash_combined_t names; | |
| ngx_uint_t nregex; | |
| ngx_http_server_name_t *regex; | |
| } ngx_http_virtual_names_t; | |
| typedef void (*ngx_http_cleanup_pt)(void *data); | |
| typedef struct ngx_http_cleanup_s ngx_http_cleanup_t; | |
| struct ngx_http_cleanup_s { | |
| ngx_http_cleanup_pt handler; | |
| void *data; | |
| ngx_http_cleanup_t *next; | |
| }; | |
| typedef ngx_int_t (*ngx_http_post_subrequest_pt)(ngx_http_request_t *r, | |
| void *data, ngx_int_t rc); | |
| typedef struct { | |
| ngx_http_post_subrequest_pt handler; | |
| void *data; | |
| } ngx_http_post_subrequest_t; | |
| typedef struct ngx_http_postponed_request_s ngx_http_postponed_request_t; | |
| struct ngx_http_postponed_request_s { | |
| ngx_http_request_t *request; | |
| ngx_chain_t *out; | |
| ngx_http_postponed_request_t *next; | |
| }; | |
| typedef struct ngx_http_posted_request_s ngx_http_posted_request_t; | |
| struct ngx_http_posted_request_s { | |
| ngx_http_request_t *request; | |
| ngx_http_posted_request_t *next; | |
| }; | |
| typedef ngx_int_t (*ngx_http_handler_pt)(ngx_http_request_t *r); | |
| typedef void (*ngx_http_event_handler_pt)(ngx_http_request_t *r); | |
| struct ngx_http_request_s { | |
| uint32_t signature; /* "HTTP" */ | |
| ngx_connection_t *connection; | |
| void **ctx; | |
| void **main_conf; | |
| void **srv_conf; | |
| void **loc_conf; | |
| ngx_http_event_handler_pt read_event_handler; | |
| ngx_http_event_handler_pt write_event_handler; | |
| ngx_http_cache_t *cache; | |
| ngx_http_upstream_t *upstream; | |
| ngx_array_t *upstream_states; | |
| /* of ngx_http_upstream_state_t */ | |
| ngx_pool_t *pool; | |
| ngx_buf_t *header_in; | |
| ngx_http_headers_in_t headers_in; | |
| ngx_http_headers_out_t headers_out; | |
| ngx_http_request_body_t *request_body; | |
| time_t lingering_time; | |
| time_t start_sec; | |
| ngx_msec_t start_msec; | |
| ngx_uint_t method; | |
| ngx_uint_t http_version; | |
| ngx_str_t request_line; | |
| ngx_str_t uri; | |
| ngx_str_t args; | |
| ngx_str_t exten; | |
| ngx_str_t unparsed_uri; | |
| ngx_str_t method_name; | |
| ngx_str_t http_protocol; | |
| ngx_chain_t *out; | |
| ngx_http_request_t *main; | |
| ngx_http_request_t *parent; | |
| ngx_http_postponed_request_t *postponed; | |
| ngx_http_post_subrequest_t *post_subrequest; | |
| ngx_http_posted_request_t *posted_requests; | |
| uint32_t in_addr; | |
| ngx_uint_t port; | |
| ngx_str_t *port_text; /* ":80" */ | |
| ngx_http_virtual_names_t *virtual_names; | |
| ngx_int_t phase_handler; | |
| ngx_http_handler_pt content_handler; | |
| ngx_uint_t access_code; | |
| ngx_http_variable_value_t *variables; | |
| size_t limit_rate; | |
| /* used to learn the Apache compatible response length without a header */ | |
| size_t header_size; | |
| off_t request_length; | |
| ngx_uint_t err_status; | |
| ngx_http_connection_t *http_connection; | |
| ngx_http_log_handler_pt log_handler; | |
| ngx_http_cleanup_t *cleanup; | |
| unsigned http_state:4; | |
| /* URI with "/." and on Win32 with "//" */ | |
| unsigned complex_uri:1; | |
| /* URI with "%" */ | |
| unsigned quoted_uri:1; | |
| /* URI with "+" */ | |
| unsigned plus_in_uri:1; | |
| /* URI with "\0" or "%00" */ | |
| unsigned zero_in_uri:1; | |
| unsigned invalid_header:1; | |
| unsigned valid_location:1; | |
| unsigned valid_unparsed_uri:1; | |
| unsigned uri_changed:1; | |
| unsigned uri_changes:4; | |
| unsigned request_body_in_single_buf:1; | |
| unsigned request_body_in_file_only:1; | |
| unsigned request_body_in_persistent_file:1; | |
| unsigned request_body_in_clean_file:1; | |
| unsigned request_body_file_group_access:1; | |
| unsigned request_body_file_log_level:3; | |
| unsigned subrequest_in_memory:1; | |
| unsigned waited:1; | |
| unsigned gzip:2; | |
| unsigned proxy:1; | |
| unsigned bypass_cache:1; | |
| unsigned no_cache:1; | |
| /* | |
| * instead of using the request context data in | |
| * ngx_http_limit_zone_module and ngx_http_limit_req_module | |
| * we use the single bits in the request structure | |
| */ | |
| unsigned limit_zone_set:1; | |
| unsigned limit_req_set:1; | |
| #if 0 | |
| unsigned cacheable:1; | |
| #endif | |
| unsigned pipeline:1; | |
| unsigned plain_http:1; | |
| unsigned chunked:1; | |
| unsigned header_only:1; | |
| unsigned zero_body:1; | |
| unsigned keepalive:1; | |
| unsigned lingering_close:1; | |
| unsigned discard_body:1; | |
| unsigned internal:1; | |
| unsigned error_page:1; | |
| unsigned post_action:1; | |
| unsigned request_complete:1; | |
| unsigned request_output:1; | |
| unsigned header_sent:1; | |
| unsigned expect_tested:1; | |
| unsigned root_tested:1; | |
| unsigned done:1; | |
| unsigned logged:1; | |
| unsigned utf8:1; | |
| unsigned buffered:4; | |
| unsigned main_filter_need_in_memory:1; | |
| unsigned filter_need_in_memory:1; | |
| unsigned filter_need_temporary:1; | |
| unsigned allow_ranges:1; | |
| #if (NGX_STAT_STUB) | |
| unsigned stat_reading:1; | |
| unsigned stat_writing:1; | |
| #endif | |
| unsigned subrequests:8; | |
| /* used to parse HTTP headers */ | |
| ngx_uint_t state; | |
| u_char *uri_start; | |
| u_char *uri_end; | |
| u_char *uri_ext; | |
| u_char *args_start; | |
| u_char *request_start; | |
| u_char *request_end; | |
| u_char *method_end; | |
| u_char *schema_start; | |
| u_char *schema_end; | |
| u_char *host_start; | |
| u_char *host_end; | |
| u_char *port_start; | |
| u_char *port_end; | |
| u_char *header_name_start; | |
| u_char *header_name_end; | |
| u_char *header_start; | |
| u_char *header_end; | |
| unsigned http_minor:16; | |
| unsigned http_major:16; | |
| ngx_uint_t header_hash; | |
| ngx_uint_t lowcase_index; | |
| u_char lowcase_header[NGX_HTTP_LC_HEADER_LEN]; | |
| }; | |
| extern ngx_http_header_t ngx_http_headers_in[]; | |
| extern ngx_http_header_out_t ngx_http_headers_out[]; | |
| #endif /* _NGX_HTTP_REQUEST_H_INCLUDED_ */ |