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comparison src/http/modules/proxy/ngx_http_proxy_handler.h @ 170:c42be4185301

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nginx-0.0.1-2003-11-03-01:56:18 import
author Igor Sysoev <igor@sysoev.ru>
date Sun, 02 Nov 2003 22:56:18 +0000
parents edf29bb717da
children aff0e5d32af8
comparison
equal deleted inserted replaced
169:edf29bb717da 170:c42be4185301
3 3
4 4
5 #include <ngx_config.h> 5 #include <ngx_config.h>
6 #include <ngx_core.h> 6 #include <ngx_core.h>
7 #include <ngx_event.h> 7 #include <ngx_event.h>
8 #include <ngx_event_connect.h>
9 #include <ngx_event_pipe.h>
8 #include <ngx_http.h> 10 #include <ngx_http.h>
9 11
10 12
11 typedef struct { 13 typedef struct {
14 ngx_str_t url;
12 ngx_str_t host; 15 ngx_str_t host;
13 ngx_str_t uri; 16 ngx_str_t uri;
14 ngx_str_t host_header; 17 ngx_str_t host_header;
15 ngx_str_t port_text; 18 ngx_str_t port_text;
16 ngx_str_t *location; 19 ngx_str_t *location;
17 int port; 20 int port;
18 } ngx_http_proxy_upstream_t; 21 } ngx_http_proxy_upstream_t;
19 22
20 23
21 typedef struct { 24 typedef struct {
22 ssize_t request_buffer_size; 25 ssize_t request_buffer_size;
23 ngx_msec_t connect_timeout; 26 ngx_msec_t connect_timeout;
24 ngx_msec_t send_timeout; 27 ngx_msec_t send_timeout;
25 ssize_t header_buffer_size; 28 ssize_t header_buffer_size;
26 ngx_msec_t read_timeout; 29 ngx_msec_t read_timeout;
27 30
28 ngx_bufs_t bufs; 31 ngx_bufs_t bufs;
29 ssize_t busy_buffers_size; 32 ssize_t busy_buffers_size;
30 33
31 ssize_t max_temp_file_size; 34 ssize_t max_temp_file_size;
32 ssize_t temp_file_write_size; 35 ssize_t temp_file_write_size;
33 int cyclic_temp_file; 36 int cyclic_temp_file;
34 37
35 int pass_server; 38 int cache;
39 int pass_server;
36 40
37 int next_upstream; 41 int next_upstream;
42 int use_stale;
38 43
39 ngx_path_t *temp_path; 44 ngx_path_t *cache_path;
45 ngx_path_t *temp_path;
40 46
41 ngx_http_proxy_upstream_t *upstream; 47 ngx_http_proxy_upstream_t *upstream;
42 ngx_peers_t *peers; 48 ngx_peers_t *peers;
43 } ngx_http_proxy_loc_conf_t; 49 } ngx_http_proxy_loc_conf_t;
44 50
45 51
46 typedef struct { 52 typedef struct {
47 int status; 53 int status;
48 ngx_str_t *peer; 54 ngx_str_t *peer;
49 } ngx_http_proxy_state_t; 55 } ngx_http_proxy_state_t;
50 56
51 57
52 typedef struct { 58 typedef struct {
53 ngx_table_t *headers; /* it must be first field */ 59 ngx_table_t *headers; /* it must be first field */
54 60
55 ngx_table_elt_t *date; 61 ngx_table_elt_t *date;
56 ngx_table_elt_t *server; 62 ngx_table_elt_t *server;
57 ngx_table_elt_t *connection; 63 ngx_table_elt_t *connection;
58 ngx_table_elt_t *content_type; 64 ngx_table_elt_t *content_type;
59 ngx_table_elt_t *content_length; 65 ngx_table_elt_t *content_length;
60 ngx_table_elt_t *last_modified; 66 ngx_table_elt_t *last_modified;
61 ngx_table_elt_t *accept_ranges; 67 ngx_table_elt_t *accept_ranges;
62 68
63 off_t content_length_n; 69 off_t content_length_n;
64 } ngx_http_proxy_headers_in_t; 70 } ngx_http_proxy_headers_in_t;
71
72
73 typedef struct {
74 ngx_http_cache_ctx_t ctx;
75 int status;
76 ngx_str_t status_line;
77 ngx_http_proxy_headers_in_t headers_in;
78 } ngx_http_proxy_cache_t;
65 79
66 80
67 typedef struct ngx_http_proxy_ctx_s ngx_http_proxy_ctx_t; 81 typedef struct ngx_http_proxy_ctx_s ngx_http_proxy_ctx_t;
68 82
69 struct ngx_http_proxy_ctx_s { 83 struct ngx_http_proxy_ctx_s {
70 ngx_peer_connection_t upstream; 84 ngx_peer_connection_t upstream;
71 ngx_peer_t *peer; 85 ngx_peer_t *peer;
72 86
73 ngx_http_request_t *request; 87 ngx_http_request_t *request;
74 ngx_http_proxy_loc_conf_t *lcf; 88 ngx_http_proxy_loc_conf_t *lcf;
89 ngx_http_proxy_cache_t *cache;
75 ngx_http_proxy_headers_in_t headers_in; 90 ngx_http_proxy_headers_in_t headers_in;
76 91
77 ngx_hunk_t *header_in; 92 ngx_hunk_t *header_in;
78 int status; 93 int status;
79 ngx_str_t status_line; 94 ngx_str_t status_line;
80 95
81 ngx_output_chain_ctx_t *output_chain_ctx; 96 ngx_output_chain_ctx_t *output_chain_ctx;
82 97
83 int method; 98 int method;
84 99
85 ngx_event_pipe_t *event_pipe; 100 ngx_event_pipe_t *event_pipe;
86 101
87 unsigned accel:1; 102 unsigned accel:1;
88 unsigned cachable:1; 103
89 unsigned fatal_error:1; 104 unsigned cachable:1;
90 unsigned request_sent:1; 105 unsigned stale:1;
91 unsigned timedout:1; 106
92 unsigned header_sent:1; 107 unsigned request_sent:1;
108 unsigned header_sent:1;
93 109
94 /* used to parse an upstream HTTP header */ 110 /* used to parse an upstream HTTP header */
95 char *status_start; 111 char *status_start;
96 char *status_end; 112 char *status_end;
97 int status_count; 113 int status_count;
98 int state; 114 int state;
99 115
100 ngx_array_t states; /* of ngx_http_proxy_state_t */ 116 ngx_array_t states; /* of ngx_http_proxy_state_t */
101 117
102 char *action; 118 char *action;
103 ngx_http_log_ctx_t *saved_ctx; 119 ngx_http_log_ctx_t *saved_ctx;
104 ngx_log_handler_pt saved_handler; 120 ngx_log_handler_pt saved_handler;
105 }; 121 };
106 122
107 123
108 #define NGX_HTTP_PROXY_PARSE_NO_HEADER 20 124 #define NGX_STALE 1
109 125
110 #define NGX_HTTP_PROXY_FT_ERROR 1 126 #define NGX_HTTP_PROXY_PARSE_NO_HEADER 20
111 #define NGX_HTTP_PROXY_FT_TIMEOUT 2 127
112 #define NGX_HTTP_PROXY_FT_HTTP_HEADER 4 128 #define NGX_HTTP_PROXY_FT_ERROR 2
113 #define NGX_HTTP_PROXY_FT_HTTP_500 8 129 #define NGX_HTTP_PROXY_FT_TIMEOUT 4
130 #define NGX_HTTP_PROXY_FT_INVALID_HEADER 8
131 #define NGX_HTTP_PROXY_FT_HTTP_500 16
132 #define NGX_HTTP_PROXY_FT_HTTP_404 32
133 #define NGX_HTTP_PROXY_FT_BUSY_LOCK 64
134 #define NGX_HTTP_PROXY_FT_MAX_WAITING 128
135
136
137 void ngx_http_proxy_reinit_upstream(ngx_http_proxy_ctx_t *p);
138
139 int ngx_http_proxy_get_cached_response(ngx_http_proxy_ctx_t *p);
140 int ngx_http_proxy_process_cached_response(ngx_http_proxy_ctx_t *p);
141 int ngx_http_proxy_send_cached_response(ngx_http_proxy_ctx_t *p);
142
143 int ngx_http_proxy_parse_status_line(ngx_http_proxy_ctx_t *p);
144 int ngx_http_proxy_copy_header(ngx_http_proxy_ctx_t *p,
145 ngx_http_proxy_headers_in_t *headers_in);
146
147
148
149 extern ngx_module_t ngx_http_proxy_module;
150 extern ngx_http_header_t ngx_http_proxy_headers_in[];
151
114 152
115 153
116 #endif /* _NGX_HTTP_PROXY_HANDLER_H_INCLUDED_ */ 154 #endif /* _NGX_HTTP_PROXY_HANDLER_H_INCLUDED_ */