mirror of
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3338cfdfbc
*) Feature: the "proxy_hide_header", "proxy_pass_header",
"fastcgi_hide_header", and "fastcgi_pass_header" directives.
*) Change: the "proxy_pass_x_powered_by", "fastcgi_x_powered_by", and
"proxy_pass_server" directives were canceled.
*) Feature: the "X-Accel-Buffering" response header line is supported
in proxy mode.
*) Bugfix: the reconfiguration bug and memory leaks in the
ngx_http_perl_module.
208 lines
6.3 KiB
C
208 lines
6.3 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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*/
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#ifndef _NGX_HTTP_UPSTREAM_H_INCLUDED_
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#define _NGX_HTTP_UPSTREAM_H_INCLUDED_
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#include <ngx_config.h>
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#include <ngx_core.h>
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#include <ngx_event.h>
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#include <ngx_event_connect.h>
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#include <ngx_event_pipe.h>
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#include <ngx_http.h>
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#define NGX_HTTP_UPSTREAM_FT_ERROR 0x002
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#define NGX_HTTP_UPSTREAM_FT_TIMEOUT 0x004
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#define NGX_HTTP_UPSTREAM_FT_INVALID_HEADER 0x008
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#define NGX_HTTP_UPSTREAM_FT_HTTP_500 0x010
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#define NGX_HTTP_UPSTREAM_FT_HTTP_503 0x020
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#define NGX_HTTP_UPSTREAM_FT_HTTP_404 0x040
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#define NGX_HTTP_UPSTREAM_FT_BUSY_LOCK 0x080
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#define NGX_HTTP_UPSTREAM_FT_MAX_WAITING 0x100
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#define NGX_HTTP_UPSTREAM_INVALID_HEADER 40
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typedef struct {
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ngx_msec_t bl_time;
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ngx_uint_t bl_state;
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ngx_uint_t status;
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ngx_msec_t response_time;
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ngx_str_t *peer;
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} ngx_http_upstream_state_t;
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typedef struct {
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ngx_hash_t headers_in_hash;
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} ngx_http_upstream_main_conf_t;
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typedef struct {
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ngx_msec_t connect_timeout;
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ngx_msec_t send_timeout;
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ngx_msec_t read_timeout;
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ngx_msec_t timeout;
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size_t send_lowat;
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size_t buffer_size;
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size_t busy_buffers_size;
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size_t max_temp_file_size;
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size_t temp_file_write_size;
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size_t busy_buffers_size_conf;
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size_t max_temp_file_size_conf;
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size_t temp_file_write_size_conf;
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ngx_uint_t next_upstream;
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ngx_uint_t max_fails;
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time_t fail_timeout;
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ngx_bufs_t bufs;
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ngx_flag_t buffering;
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ngx_flag_t pass_request_headers;
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ngx_flag_t pass_request_body;
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ngx_flag_t ignore_client_abort;
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ngx_flag_t redirect_errors;
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ngx_flag_t cyclic_temp_file;
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ngx_path_t *temp_path;
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ngx_hash_t hide_headers_hash;
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ngx_array_t *hide_headers;
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ngx_array_t *pass_headers;
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ngx_str_t schema;
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ngx_str_t uri;
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ngx_str_t location;
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ngx_str_t url; /* used in proxy_rewrite_location */
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unsigned redirect_404:1;
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unsigned change_buffering:1;
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#if (NGX_HTTP_SSL)
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ngx_ssl_t *ssl;
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#endif
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} ngx_http_upstream_conf_t;
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typedef struct {
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ngx_str_t name;
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ngx_http_header_handler_pt handler;
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ngx_uint_t offset;
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ngx_http_header_handler_pt copy_handler;
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ngx_uint_t conf;
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ngx_uint_t redirect; /* unsigned redirect:1; */
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} ngx_http_upstream_header_t;
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typedef struct {
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ngx_list_t headers;
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ngx_uint_t status_n;
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ngx_str_t status_line;
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ngx_table_elt_t *status;
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ngx_table_elt_t *date;
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ngx_table_elt_t *server;
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ngx_table_elt_t *connection;
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ngx_table_elt_t *expires;
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ngx_table_elt_t *etag;
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ngx_table_elt_t *x_accel_expires;
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ngx_table_elt_t *x_accel_redirect;
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ngx_table_elt_t *x_accel_limit_rate;
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ngx_table_elt_t *content_type;
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ngx_table_elt_t *content_length;
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ngx_table_elt_t *last_modified;
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ngx_table_elt_t *location;
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ngx_table_elt_t *accept_ranges;
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ngx_table_elt_t *www_authenticate;
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#if (NGX_HTTP_GZIP)
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ngx_table_elt_t *content_encoding;
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#endif
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ngx_array_t cache_control;
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} ngx_http_upstream_headers_in_t;
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struct ngx_http_upstream_s {
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ngx_peer_connection_t peer;
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ngx_event_pipe_t *pipe;
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ngx_chain_t *request_bufs;
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ngx_output_chain_ctx_t output;
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ngx_chain_writer_ctx_t writer;
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ngx_http_upstream_conf_t *conf;
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ngx_http_upstream_headers_in_t headers_in;
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ngx_buf_t buffer;
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size_t length;
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ngx_chain_t *out_bufs;
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ngx_chain_t *busy_bufs;
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ngx_chain_t *free_bufs;
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ngx_int_t (*input_filter_init)(void *data);
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ngx_int_t (*input_filter)(void *data, ssize_t bytes);
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void *input_filter_ctx;
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ngx_int_t (*create_request)(ngx_http_request_t *r);
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ngx_int_t (*reinit_request)(ngx_http_request_t *r);
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ngx_int_t (*process_header)(ngx_http_request_t *r);
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void (*abort_request)(ngx_http_request_t *r);
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void (*finalize_request)(ngx_http_request_t *r,
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ngx_int_t rc);
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ngx_int_t (*rewrite_redirect)(ngx_http_request_t *r,
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ngx_table_elt_t *h, size_t prefix);
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ngx_msec_t timeout;
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ngx_str_t method;
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ngx_http_log_handler_pt saved_log_handler;
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ngx_http_upstream_state_t *state;
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ngx_array_t states; /* of ngx_http_upstream_state_t */
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ngx_str_t uri;
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ngx_http_cleanup_pt *cleanup;
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unsigned cachable:1;
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unsigned accel:1;
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unsigned buffering:1;
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unsigned request_sent:1;
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unsigned header_sent:1;
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};
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void ngx_http_upstream_init(ngx_http_request_t *r);
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extern ngx_module_t ngx_http_upstream_module;
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#endif /* _NGX_HTTP_UPSTREAM_H_INCLUDED_ */
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