nginx: src/http/modules/ngx_http_limit_req

annotate src/http/modules/ngx_http_limit_req_module.c @ 5863:102f85699420

Limit req: reduced number of parameters in the lookup function. No functional changes.

author	Valentin Bartenev <vbart@nginx.com>
date	Wed, 24 Sep 2014 21:55:19 +0400
parents	ecbb99aa0e12
children	3b7a60371a9a

rev	line source
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	2 /*
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	3 * Copyright (C) Igor Sysoev
4412 d620f497c50f Copyright updated. Maxim Konovalov <maxim@nginx.com> parents: 4399 diff changeset	4 * Copyright (C) Nginx, Inc.
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	5 */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	6
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	7
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	8 #include <ngx_config.h>
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	9 #include <ngx_core.h>
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	10 #include <ngx_http.h>
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	11
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	12
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	13 typedef struct {
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	14 u_char color;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	15 u_char dummy;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	16 u_short len;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	17 ngx_queue_t queue;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	18 ngx_msec_t last;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	19 /* integer value, 1 corresponds to 0.001 r/s */
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	20 ngx_uint_t excess;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	21 ngx_uint_t count;
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	22 u_char data[1];
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	23 } ngx_http_limit_req_node_t;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	24
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	25
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	26 typedef struct {
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	27 ngx_rbtree_t rbtree;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	28 ngx_rbtree_node_t sentinel;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	29 ngx_queue_t queue;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	30 } ngx_http_limit_req_shctx_t;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	31
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	32
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	33 typedef struct {
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	34 ngx_http_limit_req_shctx_t *sh;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	35 ngx_slab_pool_t *shpool;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	36 /* integer value, 1 corresponds to 0.001 r/s */
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	37 ngx_uint_t rate;
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	38 ngx_http_complex_value_t key;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	39 ngx_http_limit_req_node_t *node;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	40 } ngx_http_limit_req_ctx_t;
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	41
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	42
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	43 typedef struct {
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	44 ngx_shm_zone_t *shm_zone;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	45 /* integer value, 1 corresponds to 0.001 r/s */
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	46 ngx_uint_t burst;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	47 ngx_uint_t nodelay; /* unsigned nodelay:1 */
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	48 } ngx_http_limit_req_limit_t;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	49
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	50
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	51 typedef struct {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	52 ngx_array_t limits;
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	53 ngx_uint_t limit_log_level;
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	54 ngx_uint_t delay_log_level;
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	55 ngx_uint_t status_code;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	56 } ngx_http_limit_req_conf_t;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	57
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	58
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	59 static void ngx_http_limit_req_delay(ngx_http_request_t *r);
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	60 static ngx_int_t ngx_http_limit_req_lookup(ngx_http_limit_req_limit_t *limit,
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	61 ngx_uint_t hash, ngx_str_t key, ngx_uint_t ep, ngx_uint_t account);
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	62 static ngx_msec_t ngx_http_limit_req_account(ngx_http_limit_req_limit_t *limits,
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	63 ngx_uint_t n, ngx_uint_t ep, ngx_http_limit_req_limit_t *limit);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	64 static void ngx_http_limit_req_expire(ngx_http_limit_req_ctx_t *ctx,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	65 ngx_uint_t n);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	66
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	67 static void ngx_http_limit_req_create_conf(ngx_conf_t cf);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	68 static char ngx_http_limit_req_merge_conf(ngx_conf_t cf, void *parent,
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	69 void *child);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	70 static char ngx_http_limit_req_zone(ngx_conf_t cf, ngx_command_t *cmd,
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	71 void *conf);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	72 static char ngx_http_limit_req(ngx_conf_t cf, ngx_command_t *cmd,
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	73 void *conf);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	74 static ngx_int_t ngx_http_limit_req_init(ngx_conf_t *cf);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	75
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	76
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	77 static ngx_conf_enum_t ngx_http_limit_req_log_levels[] = {
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	78 { ngx_string("info"), NGX_LOG_INFO },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	79 { ngx_string("notice"), NGX_LOG_NOTICE },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	80 { ngx_string("warn"), NGX_LOG_WARN },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	81 { ngx_string("error"), NGX_LOG_ERR },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	82 { ngx_null_string, 0 }
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	83 };
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	84
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	85
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	86 static ngx_conf_num_bounds_t ngx_http_limit_req_status_bounds = {
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	87 ngx_conf_check_num_bounds, 400, 599
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	88 };
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	89
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	90
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	91 static ngx_command_t ngx_http_limit_req_commands[] = {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	92
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	93 { ngx_string("limit_req_zone"),
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	94 NGX_HTTP_MAIN_CONF\|NGX_CONF_TAKE3,
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	95 ngx_http_limit_req_zone,
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	96 0,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	97 0,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	98 NULL },
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	99
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	100 { ngx_string("limit_req"),
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	101 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_TAKE123,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	102 ngx_http_limit_req,
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	103 NGX_HTTP_LOC_CONF_OFFSET,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	104 0,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	105 NULL },
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	106
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	107 { ngx_string("limit_req_log_level"),
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	108 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_TAKE1,
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	109 ngx_conf_set_enum_slot,
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	110 NGX_HTTP_LOC_CONF_OFFSET,
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	111 offsetof(ngx_http_limit_req_conf_t, limit_log_level),
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	112 &ngx_http_limit_req_log_levels },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	113
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	114 { ngx_string("limit_req_status"),
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	115 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_TAKE1,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	116 ngx_conf_set_num_slot,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	117 NGX_HTTP_LOC_CONF_OFFSET,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	118 offsetof(ngx_http_limit_req_conf_t, status_code),
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	119 &ngx_http_limit_req_status_bounds },
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	120
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	121 ngx_null_command
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	122 };
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	123
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	124
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	125 static ngx_http_module_t ngx_http_limit_req_module_ctx = {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	126 NULL, /* preconfiguration */
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	127 ngx_http_limit_req_init, /* postconfiguration */
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	128
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	129 NULL, /* create main configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	130 NULL, /* init main configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	131
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	132 NULL, /* create server configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	133 NULL, /* merge server configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	134
4499 778ef9c3fd2d Fixed spelling in single-line comments. Ruslan Ermilov <ru@nginx.com> parents: 4497 diff changeset	135 ngx_http_limit_req_create_conf, /* create location configuration */
778ef9c3fd2d Fixed spelling in single-line comments. Ruslan Ermilov <ru@nginx.com> parents: 4497 diff changeset	136 ngx_http_limit_req_merge_conf /* merge location configuration */
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	137 };
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	138
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	139
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	140 ngx_module_t ngx_http_limit_req_module = {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	141 NGX_MODULE_V1,
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	142 &ngx_http_limit_req_module_ctx, /* module context */
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	143 ngx_http_limit_req_commands, /* module directives */
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	144 NGX_HTTP_MODULE, /* module type */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	145 NULL, /* init master */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	146 NULL, /* init module */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	147 NULL, /* init process */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	148 NULL, /* init thread */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	149 NULL, /* exit thread */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	150 NULL, /* exit process */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	151 NULL, /* exit master */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	152 NGX_MODULE_V1_PADDING
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	153 };
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	154
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	155
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	156 static ngx_int_t
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	157 ngx_http_limit_req_handler(ngx_http_request_t *r)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	158 {
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	159 uint32_t hash;
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	160 ngx_str_t key;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	161 ngx_int_t rc;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	162 ngx_uint_t n, excess;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	163 ngx_msec_t delay;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	164 ngx_http_limit_req_ctx_t *ctx;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	165 ngx_http_limit_req_conf_t *lrcf;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	166 ngx_http_limit_req_limit_t limit, limits;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	167
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	168 if (r->main->limit_req_set) {
984 dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	169 return NGX_DECLINED;
dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	170 }
dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	171
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	172 lrcf = ngx_http_get_module_loc_conf(r, ngx_http_limit_req_module);
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	173 limits = lrcf->limits.elts;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	174
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	175 excess = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	176
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	177 rc = NGX_DECLINED;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	178
4424 aacd7356c197 Limit req: unbreak compilation with MSVC. Maxim Dounin <mdounin@mdounin.ru> parents: 4420 diff changeset	179 #if (NGX_SUPPRESS_WARN)
aacd7356c197 Limit req: unbreak compilation with MSVC. Maxim Dounin <mdounin@mdounin.ru> parents: 4420 diff changeset	180 limit = NULL;
aacd7356c197 Limit req: unbreak compilation with MSVC. Maxim Dounin <mdounin@mdounin.ru> parents: 4420 diff changeset	181 #endif
aacd7356c197 Limit req: unbreak compilation with MSVC. Maxim Dounin <mdounin@mdounin.ru> parents: 4420 diff changeset	182
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	183 for (n = 0; n < lrcf->limits.nelts; n++) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	184
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	185 limit = &limits[n];
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	186
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	187 ctx = limit->shm_zone->data;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	188
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	189 if (ngx_http_complex_value(r, &ctx->key, &key) != NGX_OK) {
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	190 return NGX_HTTP_INTERNAL_SERVER_ERROR;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	191 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	192
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	193 if (key.len == 0) {
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	194 continue;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	195 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	196
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	197 if (key.len > 65535) {
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	198 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	199 "the value of the \"%V\" key "
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	200 "is more than 65535 bytes: \"%V\"",
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	201 &ctx->key.value, &key);
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	202 continue;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	203 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	204
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	205 hash = ngx_crc32_short(key.data, key.len);
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	206
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	207 ngx_shmtx_lock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	208
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	209 rc = ngx_http_limit_req_lookup(limit, hash, &key, &excess,
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	210 (n == lrcf->limits.nelts - 1));
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	211
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	212 ngx_shmtx_unlock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	213
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	214 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	215 "limit_req[%ui]: %i %ui.%03ui",
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	216 n, rc, excess / 1000, excess % 1000);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	217
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	218 if (rc != NGX_AGAIN) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	219 break;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	220 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	221 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	222
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	223 if (rc == NGX_DECLINED) {
1011 19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	224 return NGX_DECLINED;
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	225 }
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	226
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	227 r->main->limit_req_set = 1;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	228
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	229 if (rc == NGX_BUSY \|\| rc == NGX_ERROR) {
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	230
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	231 if (rc == NGX_BUSY) {
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	232 ngx_log_error(lrcf->limit_log_level, r->connection->log, 0,
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	233 "limiting requests, excess: %ui.%03ui by zone \"%V\"",
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	234 excess / 1000, excess % 1000,
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	235 &limit->shm_zone->shm.name);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	236 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	237
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	238 while (n--) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	239 ctx = limits[n].shm_zone->data;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	240
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	241 if (ctx->node == NULL) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	242 continue;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	243 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	244
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	245 ngx_shmtx_lock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	246
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	247 ctx->node->count--;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	248
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	249 ngx_shmtx_unlock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	250
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	251 ctx->node = NULL;
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	252 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	253
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	254 return lrcf->status_code;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	255 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	256
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	257 /* rc == NGX_AGAIN \|\| rc == NGX_OK */
2300 159136c9808d ) correct leaky bucket implementation Igor Sysoev <igor@sysoev.ru>* parents: 2294 diff changeset	258
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	259 if (rc == NGX_AGAIN) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	260 excess = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	261 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	262
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	263 delay = ngx_http_limit_req_account(limits, n, &excess, &limit);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	264
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	265 if (!delay) {
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	266 return NGX_DECLINED;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	267 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	268
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	269 ngx_log_error(lrcf->delay_log_level, r->connection->log, 0,
d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	270 "delaying request, excess: %ui.%03ui, by zone \"%V\"",
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	271 excess / 1000, excess % 1000, &limit->shm_zone->shm.name);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	272
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	273 if (ngx_handle_read_event(r->connection->read, 0) != NGX_OK) {
d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	274 return NGX_HTTP_INTERNAL_SERVER_ERROR;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	275 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	276
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	277 r->read_event_handler = ngx_http_test_reading;
d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	278 r->write_event_handler = ngx_http_limit_req_delay;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	279 ngx_add_timer(r->connection->write, delay);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	280
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	281 return NGX_AGAIN;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	282 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	283
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	284
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	285 static void
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	286 ngx_http_limit_req_delay(ngx_http_request_t *r)
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	287 {
2972 c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	288 ngx_event_t *wev;
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	289
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	290 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
2973 70c8b2d28d1d style fix Igor Sysoev <igor@sysoev.ru> parents: 2972 diff changeset	291 "limit_req delay");
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	292
2972 c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	293 wev = r->connection->write;
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	294
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	295 if (!wev->timedout) {
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	296
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	297 if (ngx_handle_write_event(wev, 0) != NGX_OK) {
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	298 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	299 }
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	300
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	301 return;
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	302 }
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	303
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	304 wev->timedout = 0;
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	305
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	306 if (ngx_handle_read_event(r->connection->read, 0) != NGX_OK) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	307 ngx_http_finalize_request(r, NGX_HTTP_INTERNAL_SERVER_ERROR);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	308 return;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	309 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	310
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	311 r->read_event_handler = ngx_http_block_reading;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	312 r->write_event_handler = ngx_http_core_run_phases;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	313
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	314 ngx_http_core_run_phases(r);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	315 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	316
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	317
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	318 static void
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	319 ngx_http_limit_req_rbtree_insert_value(ngx_rbtree_node_t *temp,
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	320 ngx_rbtree_node_t node, ngx_rbtree_node_t sentinel)
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	321 {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	322 ngx_rbtree_node_t **p;
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	323 ngx_http_limit_req_node_t lrn, lrnt;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	324
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	325 for ( ;; ) {
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	326
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	327 if (node->key < temp->key) {
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	328
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	329 p = &temp->left;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	330
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	331 } else if (node->key > temp->key) {
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	332
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	333 p = &temp->right;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	334
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	335 } else { /* node->key == temp->key */
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	336
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	337 lrn = (ngx_http_limit_req_node_t *) &node->color;
7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	338 lrnt = (ngx_http_limit_req_node_t *) &temp->color;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	339
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	340 p = (ngx_memn2cmp(lrn->data, lrnt->data, lrn->len, lrnt->len) < 0)
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	341 ? &temp->left : &temp->right;
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	342 }
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	343
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	344 if (*p == sentinel) {
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	345 break;
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	346 }
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	347
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	348 temp = *p;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	349 }
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	350
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	351 *p = node;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	352 node->parent = temp;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	353 node->left = sentinel;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	354 node->right = sentinel;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	355 ngx_rbt_red(node);
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	356 }
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	357
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	358
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	359 static ngx_int_t
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	360 ngx_http_limit_req_lookup(ngx_http_limit_req_limit_t *limit, ngx_uint_t hash,
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	361 ngx_str_t key, ngx_uint_t ep, ngx_uint_t account)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	362 {
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	363 size_t size;
2313 b56a9ba4824d use integer instead of float Igor Sysoev <igor@sysoev.ru> parents: 2312 diff changeset	364 ngx_int_t rc, excess;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	365 ngx_time_t *tp;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	366 ngx_msec_t now;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	367 ngx_msec_int_t ms;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	368 ngx_rbtree_node_t node, sentinel;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	369 ngx_http_limit_req_ctx_t *ctx;
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	370 ngx_http_limit_req_node_t *lr;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	371
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	372 tp = ngx_timeofday();
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	373 now = (ngx_msec_t) (tp->sec * 1000 + tp->msec);
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	374
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	375 ctx = limit->shm_zone->data;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	376
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	377 node = ctx->sh->rbtree.root;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	378 sentinel = ctx->sh->rbtree.sentinel;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	379
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	380 while (node != sentinel) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	381
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	382 if (hash < node->key) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	383 node = node->left;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	384 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	385 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	386
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	387 if (hash > node->key) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	388 node = node->right;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	389 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	390 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	391
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	392 /* hash == node->key */
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	393
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	394 lr = (ngx_http_limit_req_node_t *) &node->color;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	395
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	396 rc = ngx_memn2cmp(key->data, lr->data, key->len, (size_t) lr->len);
3191 30f841e2536d fix r3184 Igor Sysoev <igor@sysoev.ru> parents: 3185 diff changeset	397
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	398 if (rc == 0) {
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	399 ngx_queue_remove(&lr->queue);
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	400 ngx_queue_insert_head(&ctx->sh->queue, &lr->queue);
3183 b87542338ac3 make limit_req to conform to the leaky bucket algorithm Igor Sysoev <igor@sysoev.ru> parents: 2973 diff changeset	401
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	402 ms = (ngx_msec_int_t) (now - lr->last);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	403
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	404 excess = lr->excess - ctx->rate * ngx_abs(ms) / 1000 + 1000;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	405
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	406 if (excess < 0) {
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	407 excess = 0;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	408 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	409
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	410 *ep = excess;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	411
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	412 if ((ngx_uint_t) excess > limit->burst) {
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	413 return NGX_BUSY;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	414 }
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	415
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	416 if (account) {
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	417 lr->excess = excess;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	418 lr->last = now;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	419 return NGX_OK;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	420 }
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	421
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	422 lr->count++;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	423
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	424 ctx->node = lr;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	425
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	426 return NGX_AGAIN;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	427 }
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	428
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	429 node = (rc < 0) ? node->left : node->right;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	430 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	431
3779 57aecfdcac3d an excess was logged as 0.000 if requests were limited without delay: Igor Sysoev <igor@sysoev.ru> parents: 3525 diff changeset	432 *ep = 0;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	433
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	434 size = offsetof(ngx_rbtree_node_t, color)
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	435 + offsetof(ngx_http_limit_req_node_t, data)
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	436 + key->len;
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	437
4419 7084faa7a4b4 Limit req: number of cleanup calls reduced. Valentin Bartenev <vbart@nginx.com> parents: 4418 diff changeset	438 ngx_http_limit_req_expire(ctx, 1);
7084faa7a4b4 Limit req: number of cleanup calls reduced. Valentin Bartenev <vbart@nginx.com> parents: 4418 diff changeset	439
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	440 node = ngx_slab_alloc_locked(ctx->shpool, size);
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	441
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	442 if (node == NULL) {
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	443 ngx_http_limit_req_expire(ctx, 0);
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	444
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	445 node = ngx_slab_alloc_locked(ctx->shpool, size);
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	446 if (node == NULL) {
5634 5024d29354f1 Core: slab log_nomem flag. Maxim Dounin <mdounin@mdounin.ru> parents: 5411 diff changeset	447 ngx_log_error(NGX_LOG_ALERT, ngx_cycle->log, 0,
5024d29354f1 Core: slab log_nomem flag. Maxim Dounin <mdounin@mdounin.ru> parents: 5411 diff changeset	448 "could not allocate node%s", ctx->shpool->log_ctx);
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	449 return NGX_ERROR;
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	450 }
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	451 }
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	452
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	453 node->key = hash;
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	454
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	455 lr = (ngx_http_limit_req_node_t *) &node->color;
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	456
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	457 lr->len = (u_short) key->len;
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	458 lr->excess = 0;
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	459
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	460 ngx_memcpy(lr->data, key->data, key->len);
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	461
4832 949ea3d3cd1a Limit req: fix of rbtree node insertion on hash collisions. Valentin Bartenev <vbart@nginx.com> parents: 4811 diff changeset	462 ngx_rbtree_insert(&ctx->sh->rbtree, node);
949ea3d3cd1a Limit req: fix of rbtree node insertion on hash collisions. Valentin Bartenev <vbart@nginx.com> parents: 4811 diff changeset	463
949ea3d3cd1a Limit req: fix of rbtree node insertion on hash collisions. Valentin Bartenev <vbart@nginx.com> parents: 4811 diff changeset	464 ngx_queue_insert_head(&ctx->sh->queue, &lr->queue);
949ea3d3cd1a Limit req: fix of rbtree node insertion on hash collisions. Valentin Bartenev <vbart@nginx.com> parents: 4811 diff changeset	465
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	466 if (account) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	467 lr->last = now;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	468 lr->count = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	469 return NGX_OK;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	470 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	471
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	472 lr->last = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	473 lr->count = 1;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	474
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	475 ctx->node = lr;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	476
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	477 return NGX_AGAIN;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	478 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	479
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	480
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	481 static ngx_msec_t
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	482 ngx_http_limit_req_account(ngx_http_limit_req_limit_t *limits, ngx_uint_t n,
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	483 ngx_uint_t ep, ngx_http_limit_req_limit_t *limit)
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	484 {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	485 ngx_int_t excess;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	486 ngx_time_t *tp;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	487 ngx_msec_t now, delay, max_delay;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	488 ngx_msec_int_t ms;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	489 ngx_http_limit_req_ctx_t *ctx;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	490 ngx_http_limit_req_node_t *lr;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	491
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	492 excess = *ep;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	493
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	494 if (excess == 0 \|\| (*limit)->nodelay) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	495 max_delay = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	496
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	497 } else {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	498 ctx = (*limit)->shm_zone->data;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	499 max_delay = excess * 1000 / ctx->rate;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	500 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	501
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	502 while (n--) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	503 ctx = limits[n].shm_zone->data;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	504 lr = ctx->node;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	505
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	506 if (lr == NULL) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	507 continue;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	508 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	509
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	510 ngx_shmtx_lock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	511
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	512 tp = ngx_timeofday();
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	513
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	514 now = (ngx_msec_t) (tp->sec * 1000 + tp->msec);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	515 ms = (ngx_msec_int_t) (now - lr->last);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	516
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	517 excess = lr->excess - ctx->rate * ngx_abs(ms) / 1000 + 1000;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	518
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	519 if (excess < 0) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	520 excess = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	521 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	522
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	523 lr->last = now;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	524 lr->excess = excess;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	525 lr->count--;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	526
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	527 ngx_shmtx_unlock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	528
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	529 ctx->node = NULL;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	530
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	531 if (limits[n].nodelay) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	532 continue;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	533 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	534
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	535 delay = excess * 1000 / ctx->rate;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	536
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	537 if (delay > max_delay) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	538 max_delay = delay;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	539 *ep = excess;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	540 *limit = &limits[n];
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	541 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	542 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	543
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	544 return max_delay;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	545 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	546
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	547
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	548 static void
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	549 ngx_http_limit_req_expire(ngx_http_limit_req_ctx_t *ctx, ngx_uint_t n)
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	550 {
2313 b56a9ba4824d use integer instead of float Igor Sysoev <igor@sysoev.ru> parents: 2312 diff changeset	551 ngx_int_t excess;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	552 ngx_time_t *tp;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	553 ngx_msec_t now;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	554 ngx_queue_t *q;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	555 ngx_msec_int_t ms;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	556 ngx_rbtree_node_t *node;
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	557 ngx_http_limit_req_node_t *lr;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	558
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	559 tp = ngx_timeofday();
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	560
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	561 now = (ngx_msec_t) (tp->sec * 1000 + tp->msec);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	562
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	563 /*
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	564 * n == 1 deletes one or two zero rate entries
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	565 * n == 0 deletes oldest entry by force
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	566 * and one or two zero rate entries
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	567 */
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	568
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	569 while (n < 3) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	570
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	571 if (ngx_queue_empty(&ctx->sh->queue)) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	572 return;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	573 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	574
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	575 q = ngx_queue_last(&ctx->sh->queue);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	576
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	577 lr = ngx_queue_data(q, ngx_http_limit_req_node_t, queue);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	578
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	579 if (lr->count) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	580
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	581 /*
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	582 * There is not much sense in looking further,
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	583 * because we bump nodes on the lookup stage.
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	584 */
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	585
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	586 return;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	587 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	588
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	589 if (n++ != 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	590
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	591 ms = (ngx_msec_int_t) (now - lr->last);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	592 ms = ngx_abs(ms);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	593
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	594 if (ms < 60000) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	595 return;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	596 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	597
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	598 excess = lr->excess - ctx->rate * ms / 1000;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	599
2313 b56a9ba4824d use integer instead of float Igor Sysoev <igor@sysoev.ru> parents: 2312 diff changeset	600 if (excess > 0) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	601 return;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	602 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	603 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	604
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	605 ngx_queue_remove(q);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	606
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	607 node = (ngx_rbtree_node_t *)
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	608 ((u_char *) lr - offsetof(ngx_rbtree_node_t, color));
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	609
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	610 ngx_rbtree_delete(&ctx->sh->rbtree, node);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	611
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	612 ngx_slab_free_locked(ctx->shpool, node);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	613 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	614 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	615
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	616
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	617 static ngx_int_t
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	618 ngx_http_limit_req_init_zone(ngx_shm_zone_t shm_zone, void data)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	619 {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	620 ngx_http_limit_req_ctx_t *octx = data;
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	621
2611 2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	622 size_t len;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	623 ngx_http_limit_req_ctx_t *ctx;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	624
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	625 ctx = shm_zone->data;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	626
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	627 if (octx) {
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	628 if (ctx->key.value.len != octx->key.value.len
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	629 \|\| ngx_strncmp(ctx->key.value.data, octx->key.value.data,
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	630 ctx->key.value.len)
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	631 != 0)
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	632 {
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	633 ngx_log_error(NGX_LOG_EMERG, shm_zone->shm.log, 0,
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	634 "limit_req \"%V\" uses the \"%V\" key "
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	635 "while previously it used the \"%V\" key",
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	636 &shm_zone->shm.name, &ctx->key.value,
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	637 &octx->key.value);
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	638 return NGX_ERROR;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	639 }
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	640
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	641 ctx->sh = octx->sh;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	642 ctx->shpool = octx->shpool;
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	643
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	644 return NGX_OK;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	645 }
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	646
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	647 ctx->shpool = (ngx_slab_pool_t *) shm_zone->shm.addr;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	648
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	649 if (shm_zone->shm.exists) {
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	650 ctx->sh = ctx->shpool->data;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	651
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	652 return NGX_OK;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	653 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	654
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	655 ctx->sh = ngx_slab_alloc(ctx->shpool, sizeof(ngx_http_limit_req_shctx_t));
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	656 if (ctx->sh == NULL) {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	657 return NGX_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	658 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	659
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	660 ctx->shpool->data = ctx->sh;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	661
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	662 ngx_rbtree_init(&ctx->sh->rbtree, &ctx->sh->sentinel,
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	663 ngx_http_limit_req_rbtree_insert_value);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	664
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	665 ngx_queue_init(&ctx->sh->queue);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	666
2716 d5896f6608e8 move zone name from ngx_shm_zone_t to ngx_shm_t to use Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2612 diff changeset	667 len = sizeof(" in limit_req zone \"\"") + shm_zone->shm.name.len;
2611 2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	668
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	669 ctx->shpool->log_ctx = ngx_slab_alloc(ctx->shpool, len);
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	670 if (ctx->shpool->log_ctx == NULL) {
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	671 return NGX_ERROR;
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	672 }
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	673
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	674 ngx_sprintf(ctx->shpool->log_ctx, " in limit_req zone \"%V\"%Z",
2716 d5896f6608e8 move zone name from ngx_shm_zone_t to ngx_shm_t to use Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2612 diff changeset	675 &shm_zone->shm.name);
2611 2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	676
5634 5024d29354f1 Core: slab log_nomem flag. Maxim Dounin <mdounin@mdounin.ru> parents: 5411 diff changeset	677 ctx->shpool->log_nomem = 0;
5024d29354f1 Core: slab log_nomem flag. Maxim Dounin <mdounin@mdounin.ru> parents: 5411 diff changeset	678
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	679 return NGX_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	680 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	681
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	682
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	683 static void *
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	684 ngx_http_limit_req_create_conf(ngx_conf_t *cf)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	685 {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	686 ngx_http_limit_req_conf_t *conf;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	687
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	688 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_limit_req_conf_t));
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	689 if (conf == NULL) {
2912 c7d57b539248 return NULL instead of NGX_CONF_ERROR on a create conf failure Igor Sysoev <igor@sysoev.ru> parents: 2720 diff changeset	690 return NULL;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	691 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	692
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	693 /*
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	694 * set by ngx_pcalloc():
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	695 *
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	696 * conf->limits.elts = NULL;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	697 */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	698
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	699 conf->limit_log_level = NGX_CONF_UNSET_UINT;
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	700 conf->status_code = NGX_CONF_UNSET_UINT;
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	701
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	702 return conf;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	703 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	704
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	705
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	706 static char *
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	707 ngx_http_limit_req_merge_conf(ngx_conf_t cf, void parent, void *child)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	708 {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	709 ngx_http_limit_req_conf_t *prev = parent;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	710 ngx_http_limit_req_conf_t *conf = child;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	711
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	712 if (conf->limits.elts == NULL) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	713 conf->limits = prev->limits;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	714 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	715
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	716 ngx_conf_merge_uint_value(conf->limit_log_level, prev->limit_log_level,
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	717 NGX_LOG_ERR);
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	718
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	719 conf->delay_log_level = (conf->limit_log_level == NGX_LOG_INFO) ?
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	720 NGX_LOG_INFO : conf->limit_log_level + 1;
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	721
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	722 ngx_conf_merge_uint_value(conf->status_code, prev->status_code,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	723 NGX_HTTP_SERVICE_UNAVAILABLE);
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	724
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	725 return NGX_CONF_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	726 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	727
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	728
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	729 static char *
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	730 ngx_http_limit_req_zone(ngx_conf_t cf, ngx_command_t cmd, void *conf)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	731 {
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	732 u_char *p;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	733 size_t len;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	734 ssize_t size;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	735 ngx_str_t *value, name, s;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	736 ngx_int_t rate, scale;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	737 ngx_uint_t i;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	738 ngx_shm_zone_t *shm_zone;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	739 ngx_http_limit_req_ctx_t *ctx;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	740 ngx_http_compile_complex_value_t ccv;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	741
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	742 value = cf->args->elts;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	743
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	744 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_limit_req_ctx_t));
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	745 if (ctx == NULL) {
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	746 return NGX_CONF_ERROR;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	747 }
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	748
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	749 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	750
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	751 ccv.cf = cf;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	752 ccv.value = &value[1];
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	753 ccv.complex_value = &ctx->key;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	754
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	755 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	756 return NGX_CONF_ERROR;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	757 }
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	758
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	759 size = 0;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	760 rate = 1;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	761 scale = 1;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	762 name.len = 0;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	763
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	764 for (i = 2; i < cf->args->nelts; i++) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	765
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	766 if (ngx_strncmp(value[i].data, "zone=", 5) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	767
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	768 name.data = value[i].data + 5;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	769
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	770 p = (u_char *) ngx_strchr(name.data, ':');
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	771
4417 9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	772 if (p == NULL) {
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	773 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	774 "invalid zone size \"%V\"", &value[i]);
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	775 return NGX_CONF_ERROR;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	776 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	777
4417 9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	778 name.len = p - name.data;
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	779
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	780 s.data = p + 1;
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	781 s.len = value[i].data + value[i].len - s.data;
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	782
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	783 size = ngx_parse_size(&s);
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	784
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	785 if (size == NGX_ERROR) {
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	786 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	787 "invalid zone size \"%V\"", &value[i]);
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	788 return NGX_CONF_ERROR;
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	789 }
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	790
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	791 if (size < (ssize_t) (8 * ngx_pagesize)) {
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	792 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	793 "zone \"%V\" is too small", &value[i]);
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	794 return NGX_CONF_ERROR;
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	795 }
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	796
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	797 continue;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	798 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	799
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	800 if (ngx_strncmp(value[i].data, "rate=", 5) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	801
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	802 len = value[i].len;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	803 p = value[i].data + len - 3;
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	804
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	805 if (ngx_strncmp(p, "r/s", 3) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	806 scale = 1;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	807 len -= 3;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	808
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	809 } else if (ngx_strncmp(p, "r/m", 3) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	810 scale = 60;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	811 len -= 3;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	812 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	813
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	814 rate = ngx_atoi(value[i].data + 5, len - 5);
5166 fc595eeb6c54 Limit req: rate should be non-zero. Valentin Bartenev <vbart@nginx.com> parents: 5117 diff changeset	815 if (rate <= 0) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	816 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	817 "invalid rate \"%V\"", &value[i]);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	818 return NGX_CONF_ERROR;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	819 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	820
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	821 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	822 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	823
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	824 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	825 "invalid parameter \"%V\"", &value[i]);
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	826 return NGX_CONF_ERROR;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	827 }
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	828
4417 9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	829 if (name.len == 0) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	830 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	831 "\"%V\" must have \"zone\" parameter",
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	832 &cmd->name);
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	833 return NGX_CONF_ERROR;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	834 }
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	835
2313 b56a9ba4824d use integer instead of float Igor Sysoev <igor@sysoev.ru> parents: 2312 diff changeset	836 ctx->rate = rate * 1000 / scale;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	837
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	838 shm_zone = ngx_shared_memory_add(cf, &name, size,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	839 &ngx_http_limit_req_module);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	840 if (shm_zone == NULL) {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	841 return NGX_CONF_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	842 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	843
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	844 if (shm_zone->data) {
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	845 ctx = shm_zone->data;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	846
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	847 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	848 "%V \"%V\" is already bound to key \"%V\"",
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	849 &cmd->name, &name, &ctx->key.value);
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	850 return NGX_CONF_ERROR;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	851 }
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	852
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	853 shm_zone->init = ngx_http_limit_req_init_zone;
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	854 shm_zone->data = ctx;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	855
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	856 return NGX_CONF_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	857 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	858
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	859
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	860 static char *
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	861 ngx_http_limit_req(ngx_conf_t cf, ngx_command_t cmd, void *conf)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	862 {
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	863 ngx_http_limit_req_conf_t *lrcf = conf;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	864
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	865 ngx_int_t burst;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	866 ngx_str_t *value, s;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	867 ngx_uint_t i, nodelay;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	868 ngx_shm_zone_t *shm_zone;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	869 ngx_http_limit_req_limit_t limit, limits;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	870
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	871 value = cf->args->elts;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	872
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	873 shm_zone = NULL;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	874 burst = 0;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	875 nodelay = 0;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	876
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	877 for (i = 1; i < cf->args->nelts; i++) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	878
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	879 if (ngx_strncmp(value[i].data, "zone=", 5) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	880
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	881 s.len = value[i].len - 5;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	882 s.data = value[i].data + 5;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	883
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	884 shm_zone = ngx_shared_memory_add(cf, &s, 0,
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	885 &ngx_http_limit_req_module);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	886 if (shm_zone == NULL) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	887 return NGX_CONF_ERROR;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	888 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	889
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	890 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	891 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	892
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	893 if (ngx_strncmp(value[i].data, "burst=", 6) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	894
2300 159136c9808d ) correct leaky bucket implementation Igor Sysoev <igor@sysoev.ru>* parents: 2294 diff changeset	895 burst = ngx_atoi(value[i].data + 6, value[i].len - 6);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	896 if (burst <= 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	897 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	898 "invalid burst rate \"%V\"", &value[i]);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	899 return NGX_CONF_ERROR;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	900 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	901
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	902 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	903 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	904
5411 5483d9e77b32 Limit req: fixed "nodelay" parsing. Maxim Dounin <mdounin@mdounin.ru> parents: 5166 diff changeset	905 if (ngx_strcmp(value[i].data, "nodelay") == 0) {
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	906 nodelay = 1;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	907 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	908 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	909
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	910 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	911 "invalid parameter \"%V\"", &value[i]);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	912 return NGX_CONF_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	913 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	914
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	915 if (shm_zone == NULL) {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	916 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	917 "\"%V\" must have \"zone\" parameter",
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	918 &cmd->name);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	919 return NGX_CONF_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	920 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	921
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	922 if (shm_zone->data == NULL) {
1011 19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	923 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	924 "unknown limit_req_zone \"%V\"",
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	925 &shm_zone->shm.name);
1011 19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	926 return NGX_CONF_ERROR;
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	927 }
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	928
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	929 limits = lrcf->limits.elts;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	930
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	931 if (limits == NULL) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	932 if (ngx_array_init(&lrcf->limits, cf->pool, 1,
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	933 sizeof(ngx_http_limit_req_limit_t))
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	934 != NGX_OK)
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	935 {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	936 return NGX_CONF_ERROR;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	937 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	938 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	939
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	940 for (i = 0; i < lrcf->limits.nelts; i++) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	941 if (shm_zone == limits[i].shm_zone) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	942 return "is duplicate";
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	943 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	944 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	945
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	946 limit = ngx_array_push(&lrcf->limits);
4811 21d1e3bcb356 Added three missing checks for NULL after ngx_array_push() calls. Valentin Bartenev <vbart@nginx.com> parents: 4499 diff changeset	947 if (limit == NULL) {
21d1e3bcb356 Added three missing checks for NULL after ngx_array_push() calls. Valentin Bartenev <vbart@nginx.com> parents: 4499 diff changeset	948 return NGX_CONF_ERROR;
21d1e3bcb356 Added three missing checks for NULL after ngx_array_push() calls. Valentin Bartenev <vbart@nginx.com> parents: 4499 diff changeset	949 }
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	950
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	951 limit->shm_zone = shm_zone;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	952 limit->burst = burst * 1000;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	953 limit->nodelay = nodelay;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	954
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	955 return NGX_CONF_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	956 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	957
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	958
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	959 static ngx_int_t
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	960 ngx_http_limit_req_init(ngx_conf_t *cf)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	961 {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	962 ngx_http_handler_pt *h;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	963 ngx_http_core_main_conf_t *cmcf;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	964
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	965 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	966
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	967 h = ngx_array_push(&cmcf->phases[NGX_HTTP_PREACCESS_PHASE].handlers);
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	968 if (h == NULL) {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	969 return NGX_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	970 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	971
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	972 *h = ngx_http_limit_req_handler;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	973
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	974 return NGX_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	975 }

Mercurial > hg > nginx

annotate src/http/modules/ngx_http_limit_req_module.c @ 5863:102f85699420