diff options
Diffstat (limited to 'src/http/ngx_http_request.h')
| -rw-r--r-- | src/http/ngx_http_request.h | 372 |
1 files changed, 372 insertions, 0 deletions
diff --git a/src/http/ngx_http_request.h b/src/http/ngx_http_request.h new file mode 100644 index 000000000..ef169f587 --- /dev/null +++ b/src/http/ngx_http_request.h @@ -0,0 +1,372 @@ + +/* + * Copyright (C) Igor Sysoev + */ + + +#ifndef _NGX_HTTP_REQUEST_H_INCLUDED_ +#define _NGX_HTTP_REQUEST_H_INCLUDED_ + + +#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_GET 1 +#define NGX_HTTP_HEAD 2 +#define NGX_HTTP_POST 3 + +#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_TOO_LONG_URI 12 +#define NGX_HTTP_PARSE_INVALID_09_METHOD 13 + +#define NGX_HTTP_PARSE_HEADER_ERROR 14 +#define NGX_HTTP_PARSE_INVALID_HEADER 14 +#define NGX_HTTP_PARSE_TOO_LONG_HEADER 15 +#define NGX_HTTP_PARSE_NO_HOST_HEADER 17 +#define NGX_HTTP_PARSE_INVALID_CL_HEADER 18 +#define NGX_HTTP_PARSE_POST_WO_CL_HEADER 19 +#define NGX_HTTP_PARSE_HTTP_TO_HTTPS 20 +#define NGX_HTTP_PARSE_INVALID_HOST 21 + + +#define NGX_HTTP_OK 200 +#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_FORBIDDEN 403 +#define NGX_HTTP_NOT_FOUND 404 +#define NGX_HTTP_NOT_ALLOWED 405 +#define NGX_HTTP_REQUEST_TIME_OUT 408 +#define NGX_HTTP_REQUEST_ENTITY_TOO_LARGE 413 +#define NGX_HTTP_REQUEST_URI_TOO_LARGE 414 +#define NGX_HTTP_RANGE_NOT_SATISFIABLE 416 + + +/* Our own HTTP codes */ + +#define NGX_HTTP_NGX_CODES NGX_HTTP_TO_HTTPS + +/* + * 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 + +/* + * We use the special code for the requests with invalid host name + * to distinguish it from 4XX in an error page redirection + */ +#define NGX_HTTP_INVALID_HOST 498 + +/* + * 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 + + +typedef enum { + NGX_HTTP_RESTRICT_HOST_OFF = 0, + NGX_HTTP_RESTRICT_HOST_ON, + NGX_HTTP_RESTRICT_HOST_CLOSE +} ngx_http_restrict_host_e; + + +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_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 *range; + +#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_table_elt_t *x_forwarded_for; +#endif + + ngx_array_t cookies; + + size_t host_name_len; + ssize_t content_length_n; + size_t connection_type; + ssize_t keep_alive_n; + + unsigned msie:1; + unsigned msie4:1; + unsigned opera:1; + unsigned gecko:1; + unsigned konqueror:1; +} ngx_http_headers_in_t; + + +typedef struct { + off_t start; + off_t end; + ngx_str_t content_range; +} ngx_http_range_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_type; + ngx_table_elt_t *content_length; + ngx_table_elt_t *content_encoding; + ngx_table_elt_t *location; + ngx_table_elt_t *last_modified; + ngx_table_elt_t *content_range; + ngx_table_elt_t *accept_ranges; + ngx_table_elt_t *expires; + ngx_table_elt_t *cache_control; + ngx_table_elt_t *etag; + + ngx_str_t charset; + ngx_array_t ranges; + + off_t content_length_n; + time_t date_time; + time_t last_modified_time; +} ngx_http_headers_out_t; + + +typedef struct { + ngx_temp_file_t *temp_file; + ngx_chain_t *bufs; + ngx_buf_t *buf; + size_t rest; + void (*handler) (void *data); + void *data; +} ngx_http_request_body_t; + + +struct ngx_http_cleanup_s { + union { + struct { + ngx_fd_t fd; + u_char *name; + } file; + + struct { + ngx_http_cache_hash_t *hash; + ngx_http_cache_t *cache; + } cache; + } data; + + unsigned valid:1; + unsigned cache:1; +}; + + +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 ngx_int_t (*ngx_http_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_cache_t *cache; + + ngx_file_t file; + + 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; + + ngx_uint_t method; + ngx_uint_t http_version; + ngx_uint_t http_major; + ngx_uint_t http_minor; + + 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_http_request_t *main; + + uint32_t in_addr; + ngx_uint_t port; + ngx_str_t *port_text; /* ":80" */ + ngx_str_t *server_name; + ngx_array_t *virtual_names; + + ngx_uint_t phase; + ngx_int_t phase_handler; + ngx_http_handler_pt content_handler; + + ngx_array_t cleanup; + + /* used to learn the Apache compatible response length without a header */ + size_t header_size; + + u_char *discarded_buffer; + void **err_ctx; + ngx_uint_t err_status; + + ngx_http_connection_t *http_connection; + + unsigned http_state:4; + +#if 0 + /* URI is not started with '/' - "GET http://" */ + unsigned unusual_uri:1; +#endif + /* URI with "/.", "%" and on Win32 with "//" */ + unsigned complex_uri:1; + unsigned header_timeout_set:1; + + unsigned proxy:1; + unsigned bypass_cache:1; + unsigned no_cache:1; + +#if 0 + unsigned cachable:1; +#endif + unsigned pipeline:1; + + /* can we use sendfile ? */ + unsigned sendfile:1; + + unsigned plain_http:1; + unsigned chunked:1; + unsigned header_only:1; + unsigned keepalive:1; + unsigned lingering_close:1; + unsigned closed:1; + + unsigned filter_need_in_memory:1; + unsigned filter_ssi_need_in_memory:1; + unsigned filter_need_temporary:1; + unsigned filter_allow_ranges:1; + +#if (NGX_STAT_STUB) + unsigned stat_reading:1; + unsigned stat_writing:1; +#endif + + ngx_uint_t headers_n; + + /* 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; +}; + + +extern ngx_http_header_t ngx_http_headers_in[]; +extern ngx_http_header_t ngx_http_headers_out[]; + + + +#endif /* _NGX_HTTP_REQUEST_H_INCLUDED_ */ |