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-rw-r--r--app/nginx/src/http/ngx_http_request.h598
1 files changed, 598 insertions, 0 deletions
diff --git a/app/nginx/src/http/ngx_http_request.h b/app/nginx/src/http/ngx_http_request.h
new file mode 100644
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--- /dev/null
+++ b/app/nginx/src/http/ngx_http_request.h
@@ -0,0 +1,598 @@
+
+/*
+ * Copyright (C) Igor Sysoev
+ * Copyright (C) Nginx, Inc.
+ */
+
+
+#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_VERSION_20 2000
+
+#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_PATCH 0x4000
+#define NGX_HTTP_TRACE 0x8000
+
+#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
+
+
+/* unused 1 */
+#define NGX_HTTP_SUBREQUEST_IN_MEMORY 2
+#define NGX_HTTP_SUBREQUEST_WAITED 4
+#define NGX_HTTP_SUBREQUEST_CLONE 8
+
+#define NGX_HTTP_LOG_UNSAFE 1
+
+
+#define NGX_HTTP_CONTINUE 100
+#define NGX_HTTP_SWITCHING_PROTOCOLS 101
+#define NGX_HTTP_PROCESSING 102
+
+#define NGX_HTTP_OK 200
+#define NGX_HTTP_CREATED 201
+#define NGX_HTTP_ACCEPTED 202
+#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_SEE_OTHER 303
+#define NGX_HTTP_NOT_MODIFIED 304
+#define NGX_HTTP_TEMPORARY_REDIRECT 307
+
+#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
+#define NGX_HTTP_MISDIRECTED_REQUEST 421
+#define NGX_HTTP_TOO_MANY_REQUESTS 429
+
+
+/* Our own HTTP codes */
+
+/* The special code to close connection without any response */
+#define NGX_HTTP_CLOSE 444
+
+#define NGX_HTTP_NGINX_CODES 494
+
+#define NGX_HTTP_REQUEST_HEADER_TOO_LARGE 494
+
+#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 *if_unmodified_since;
+ ngx_table_elt_t *if_match;
+ ngx_table_elt_t *if_none_match;
+ ngx_table_elt_t *user_agent;
+ ngx_table_elt_t *referer;
+ ngx_table_elt_t *content_length;
+ ngx_table_elt_t *content_range;
+ 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;
+ ngx_table_elt_t *upgrade;
+
+#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_X_FORWARDED_FOR)
+ ngx_array_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 chunked:1;
+ unsigned msie:1;
+ unsigned msie6:1;
+ unsigned opera:1;
+ unsigned gecko:1;
+ unsigned chrome:1;
+ unsigned safari: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;
+ off_t content_offset;
+ 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;
+ off_t received;
+ ngx_chain_t *free;
+ ngx_chain_t *busy;
+ ngx_http_chunked_t *chunked;
+ ngx_http_client_body_handler_pt post_handler;
+} ngx_http_request_body_t;
+
+
+typedef struct ngx_http_addr_conf_s ngx_http_addr_conf_t;
+
+typedef struct {
+ ngx_http_addr_conf_t *addr_conf;
+ ngx_http_conf_ctx_t *conf_ctx;
+
+#if (NGX_HTTP_SSL || NGX_COMPAT)
+ ngx_str_t *ssl_servername;
+#if (NGX_PCRE)
+ ngx_http_regex_t *ssl_servername_regex;
+#endif
+#endif
+
+ ngx_chain_t *busy;
+ ngx_int_t nbusy;
+
+ ngx_chain_t *free;
+
+ unsigned ssl:1;
+ unsigned proxy_protocol:1;
+} ngx_http_connection_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;
+
+#if (NGX_HTTP_CACHE)
+ ngx_http_cache_t *cache;
+#endif
+
+ 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;
+
+ ngx_int_t phase_handler;
+ ngx_http_handler_pt content_handler;
+ ngx_uint_t access_code;
+
+ ngx_http_variable_value_t *variables;
+
+#if (NGX_PCRE)
+ ngx_uint_t ncaptures;
+ int *captures;
+ u_char *captures_data;
+#endif
+
+ size_t limit_rate;
+ size_t limit_rate_after;
+
+ /* 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_v2_stream_t *stream;
+
+ ngx_http_log_handler_pt log_handler;
+
+ ngx_http_cleanup_t *cleanup;
+
+ unsigned count:16;
+ unsigned subrequests:8;
+ unsigned blocked:8;
+
+ unsigned aio:1;
+
+ 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 " " */
+ unsigned space_in_uri:1;
+
+ unsigned invalid_header:1;
+
+ unsigned add_uri_to_alias: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 request_body_no_buffering:1;
+
+ unsigned subrequest_in_memory:1;
+ unsigned waited:1;
+
+#if (NGX_HTTP_CACHE)
+ unsigned cached:1;
+ unsigned cache_updater:1;
+#endif
+
+#if (NGX_HTTP_GZIP)
+ unsigned gzip_tested:1;
+ unsigned gzip_ok:1;
+ unsigned gzip_vary:1;
+#endif
+
+ unsigned proxy:1;
+ unsigned bypass_cache:1;
+ unsigned no_cache:1;
+
+ /*
+ * instead of using the request context data in
+ * ngx_http_limit_conn_module and ngx_http_limit_req_module
+ * we use the single bits in the request structure
+ */
+ unsigned limit_conn_set:1;
+ unsigned limit_req_set:1;
+
+#if 0
+ unsigned cacheable:1;
+#endif
+
+ unsigned pipeline:1;
+ unsigned chunked:1;
+ unsigned header_only:1;
+ unsigned keepalive:1;
+ unsigned lingering_close:1;
+ unsigned discard_body:1;
+ unsigned reading_body:1;
+ unsigned internal:1;
+ unsigned error_page:1;
+ unsigned filter_finalize: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 buffered:4;
+
+ unsigned main_filter_need_in_memory:1;
+ unsigned filter_need_in_memory:1;
+ unsigned filter_need_temporary:1;
+ unsigned allow_ranges:1;
+ unsigned subrequest_ranges:1;
+ unsigned single_range:1;
+ unsigned disable_not_modified:1;
+ unsigned stat_reading:1;
+ unsigned stat_writing:1;
+ unsigned stat_processing:1;
+
+ unsigned health_check:1;
+
+ /* used to parse HTTP headers */
+
+ ngx_uint_t state;
+
+ ngx_uint_t header_hash;
+ ngx_uint_t lowcase_index;
+ u_char lowcase_header[NGX_HTTP_LC_HEADER_LEN];
+
+ u_char *header_name_start;
+ u_char *header_name_end;
+ u_char *header_start;
+ u_char *header_end;
+
+ /*
+ * a memory that can be reused after parsing a request line
+ * via ngx_http_ephemeral_t
+ */
+
+ 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;
+
+ unsigned http_minor:16;
+ unsigned http_major:16;
+};
+
+
+typedef struct {
+ ngx_http_posted_request_t terminal_posted_request;
+} ngx_http_ephemeral_t;
+
+
+#define ngx_http_ephemeral(r) (void *) (&r->uri_start)
+
+
+extern ngx_http_header_t ngx_http_headers_in[];
+extern ngx_http_header_out_t ngx_http_headers_out[];
+
+
+#define ngx_http_set_log_request(log, r) \
+ ((ngx_http_log_ctx_t *) log->data)->current_request = r
+
+
+#endif /* _NGX_HTTP_REQUEST_H_INCLUDED_ */