nginx: src/http/modules/ngx_http_limit_req

annotate src/http/modules/ngx_http_limit_req_module.c @ 7515:2db68852d6a0

Limit req: limit_req_dry_run directive. A new directive limit_req_dry_run allows enabling the dry run mode. In this mode requests are neither rejected nor delayed, but reject/delay status is logged as usual.

author	Roman Arutyunyan <arut@nginx.com>
date	Wed, 05 Jun 2019 19:55:27 +0300
parents	d6ca744c727e
children	776d1bebdca2

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;
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	47 ngx_uint_t delay;
4420 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;
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	56 ngx_flag_t dry_run;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	57 } ngx_http_limit_req_conf_t;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	58
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	59
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	60 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	61 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	62 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	63 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	64 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	65 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	66 ngx_uint_t n);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	67
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	68 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	69 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	70 void *child);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	71 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	72 void *conf);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	73 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	74 void *conf);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	75 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	76
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	77
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	78 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	79 { ngx_string("info"), NGX_LOG_INFO },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	80 { ngx_string("notice"), NGX_LOG_NOTICE },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	81 { ngx_string("warn"), NGX_LOG_WARN },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	82 { ngx_string("error"), NGX_LOG_ERR },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	83 { ngx_null_string, 0 }
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
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	86
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	87 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	88 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	89 };
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	90
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	91
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	92 static ngx_command_t ngx_http_limit_req_commands[] = {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	93
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	94 { ngx_string("limit_req_zone"),
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	95 NGX_HTTP_MAIN_CONF\|NGX_CONF_TAKE3,
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	96 ngx_http_limit_req_zone,
980 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 0,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	99 NULL },
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	100
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	101 { ngx_string("limit_req"),
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	102 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	103 ngx_http_limit_req,
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	104 NGX_HTTP_LOC_CONF_OFFSET,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	105 0,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	106 NULL },
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	107
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	108 { ngx_string("limit_req_log_level"),
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	109 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	110 ngx_conf_set_enum_slot,
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	111 NGX_HTTP_LOC_CONF_OFFSET,
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	112 offsetof(ngx_http_limit_req_conf_t, limit_log_level),
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	113 &ngx_http_limit_req_log_levels },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	114
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	115 { ngx_string("limit_req_status"),
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	116 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	117 ngx_conf_set_num_slot,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	118 NGX_HTTP_LOC_CONF_OFFSET,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	119 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	120 &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	121
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	122 { ngx_string("limit_req_dry_run"),
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	123 NGX_HTTP_MAIN_CONF\|NGX_HTTP_SRV_CONF\|NGX_HTTP_LOC_CONF\|NGX_CONF_FLAG,
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	124 ngx_conf_set_flag_slot,
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	125 NGX_HTTP_LOC_CONF_OFFSET,
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	126 offsetof(ngx_http_limit_req_conf_t, dry_run),
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	127 NULL },
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	128
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	129 ngx_null_command
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	130 };
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
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	133 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	134 NULL, /* preconfiguration */
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	135 ngx_http_limit_req_init, /* postconfiguration */
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	136
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	137 NULL, /* create main configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	138 NULL, /* init main configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	139
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	140 NULL, /* create server configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	141 NULL, /* merge server configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	142
4499 778ef9c3fd2d Fixed spelling in single-line comments. Ruslan Ermilov <ru@nginx.com> parents: 4497 diff changeset	143 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	144 ngx_http_limit_req_merge_conf /* merge location configuration */
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	145 };
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	146
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	147
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	148 ngx_module_t ngx_http_limit_req_module = {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	149 NGX_MODULE_V1,
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	150 &ngx_http_limit_req_module_ctx, /* module context */
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	151 ngx_http_limit_req_commands, /* module directives */
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	152 NGX_HTTP_MODULE, /* module type */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	153 NULL, /* init master */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	154 NULL, /* init module */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	155 NULL, /* init process */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	156 NULL, /* init thread */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	157 NULL, /* exit thread */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	158 NULL, /* exit process */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	159 NULL, /* exit master */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	160 NGX_MODULE_V1_PADDING
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	161 };
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	162
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	163
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	164 static ngx_int_t
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	165 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	166 {
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	167 uint32_t hash;
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	168 ngx_str_t key;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	169 ngx_int_t rc;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	170 ngx_uint_t n, excess;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	171 ngx_msec_t delay;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	172 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	173 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	174 ngx_http_limit_req_limit_t limit, limits;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	175
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	176 if (r->main->limit_req_set) {
984 dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	177 return NGX_DECLINED;
dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	178 }
dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	179
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	180 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	181 limits = lrcf->limits.elts;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	182
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	183 excess = 0;
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 rc = NGX_DECLINED;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	186
4424 aacd7356c197 Limit req: unbreak compilation with MSVC. Maxim Dounin <mdounin@mdounin.ru> parents: 4420 diff changeset	187 #if (NGX_SUPPRESS_WARN)
aacd7356c197 Limit req: unbreak compilation with MSVC. Maxim Dounin <mdounin@mdounin.ru> parents: 4420 diff changeset	188 limit = NULL;
aacd7356c197 Limit req: unbreak compilation with MSVC. Maxim Dounin <mdounin@mdounin.ru> parents: 4420 diff changeset	189 #endif
aacd7356c197 Limit req: unbreak compilation with MSVC. Maxim Dounin <mdounin@mdounin.ru> parents: 4420 diff changeset	190
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	191 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	192
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	193 limit = &limits[n];
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	194
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	195 ctx = limit->shm_zone->data;
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 (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	198 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	199 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	200
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	201 if (key.len == 0) {
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 if (key.len > 65535) {
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	206 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	207 "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	208 "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	209 &ctx->key.value, &key);
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	210 continue;
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
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	213 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	214
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	215 ngx_shmtx_lock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	216
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	217 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	218 (n == lrcf->limits.nelts - 1));
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	219
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	220 ngx_shmtx_unlock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	221
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	222 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	223 "limit_req[%ui]: %i %ui.%03ui",
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	224 n, rc, excess / 1000, excess % 1000);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	225
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	226 if (rc != NGX_AGAIN) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	227 break;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	228 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	229 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	230
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	231 if (rc == NGX_DECLINED) {
1011 19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	232 return NGX_DECLINED;
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	233 }
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	234
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	235 r->main->limit_req_set = 1;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	236
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	237 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	238
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	239 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	240 ngx_log_error(lrcf->limit_log_level, r->connection->log, 0,
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	241 "limiting requests%s, excess: %ui.%03ui by zone \"%V\"",
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	242 lrcf->dry_run ? ", dry run" : "",
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	243 excess / 1000, excess % 1000,
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	244 &limit->shm_zone->shm.name);
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	245 }
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 while (n--) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	248 ctx = limits[n].shm_zone->data;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	249
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	250 if (ctx->node == NULL) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	251 continue;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	252 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	253
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	254 ngx_shmtx_lock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	255
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	256 ctx->node->count--;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	257
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	258 ngx_shmtx_unlock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	259
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	260 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	261 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	262
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	263 if (lrcf->dry_run) {
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	264 return NGX_DECLINED;
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	265 }
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	266
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	267 return lrcf->status_code;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	268 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	269
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	270 /* rc == NGX_AGAIN \|\| rc == NGX_OK */
2300 159136c9808d ) correct leaky bucket implementation Igor Sysoev <igor@sysoev.ru>* parents: 2294 diff changeset	271
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	272 if (rc == NGX_AGAIN) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	273 excess = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	274 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	275
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	276 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	277
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	278 if (!delay) {
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	279 return NGX_DECLINED;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	280 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	281
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	282 ngx_log_error(lrcf->delay_log_level, r->connection->log, 0,
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	283 "delaying request%s, excess: %ui.%03ui, by zone \"%V\"",
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	284 lrcf->dry_run ? ", dry run" : "",
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	285 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	286
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	287 if (lrcf->dry_run) {
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	288 return NGX_DECLINED;
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	289 }
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	290
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	291 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	292 return NGX_HTTP_INTERNAL_SERVER_ERROR;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	293 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	294
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	295 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	296 r->write_event_handler = ngx_http_limit_req_delay;
6959 7fcf209d40c8 Limit req: fixed delaying subrequests. Maxim Dounin <mdounin@mdounin.ru> parents: 6653 diff changeset	297
7fcf209d40c8 Limit req: fixed delaying subrequests. Maxim Dounin <mdounin@mdounin.ru> parents: 6653 diff changeset	298 r->connection->write->delayed = 1;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	299 ngx_add_timer(r->connection->write, delay);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	300
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	301 return NGX_AGAIN;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	302 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	303
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	304
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	305 static void
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	306 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	307 {
2972 c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	308 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	309
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	310 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
2973 70c8b2d28d1d style fix Igor Sysoev <igor@sysoev.ru> parents: 2972 diff changeset	311 "limit_req delay");
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	312
2972 c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	313 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	314
6961 903fb1ddc07f Moved handling of wev->delayed to the connection event handler. Maxim Dounin <mdounin@mdounin.ru> parents: 6959 diff changeset	315 if (wev->delayed) {
2972 c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	316
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	317 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	318 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	319 }
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	320
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	321 return;
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	322 }
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	323
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	324 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	325 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	326 return;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	327 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	328
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	329 r->read_event_handler = ngx_http_block_reading;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	330 r->write_event_handler = ngx_http_core_run_phases;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	331
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	332 ngx_http_core_run_phases(r);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	333 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	334
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	335
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	336 static void
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	337 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	338 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	339 {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	340 ngx_rbtree_node_t **p;
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	341 ngx_http_limit_req_node_t lrn, lrnt;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	342
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	343 for ( ;; ) {
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	344
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	345 if (node->key < temp->key) {
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	346
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	347 p = &temp->left;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	348
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	349 } else if (node->key > temp->key) {
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 = &temp->right;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	352
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	353 } else { /* node->key == temp->key */
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	354
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	355 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	356 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	357
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	358 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	359 ? &temp->left : &temp->right;
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	360 }
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	361
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	362 if (*p == sentinel) {
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	363 break;
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	364 }
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	365
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	366 temp = *p;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	367 }
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	368
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	369 *p = node;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	370 node->parent = temp;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	371 node->left = sentinel;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	372 node->right = sentinel;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	373 ngx_rbt_red(node);
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	374 }
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	375
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	376
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	377 static ngx_int_t
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	378 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	379 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	380 {
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	381 size_t size;
2313 b56a9ba4824d use integer instead of float Igor Sysoev <igor@sysoev.ru> parents: 2312 diff changeset	382 ngx_int_t rc, excess;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	383 ngx_msec_t now;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	384 ngx_msec_int_t ms;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	385 ngx_rbtree_node_t node, sentinel;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	386 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	387 ngx_http_limit_req_node_t *lr;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	388
6653 7a6456398fc3 Simplified extraction of current time. Ruslan Ermilov <ru@nginx.com> parents: 6117 diff changeset	389 now = ngx_current_msec;
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	390
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	391 ctx = limit->shm_zone->data;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	392
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	393 node = ctx->sh->rbtree.root;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	394 sentinel = ctx->sh->rbtree.sentinel;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	395
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	396 while (node != sentinel) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	397
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	398 if (hash < node->key) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	399 node = node->left;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	400 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	401 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	402
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	403 if (hash > node->key) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	404 node = node->right;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	405 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	406 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	407
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	408 /* hash == node->key */
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 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	411
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	412 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	413
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	414 if (rc == 0) {
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	415 ngx_queue_remove(&lr->queue);
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	416 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	417
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	418 ms = (ngx_msec_int_t) (now - lr->last);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	419
7281 bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	420 if (ms < -60000) {
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	421 ms = 1;
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	422
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	423 } else if (ms < 0) {
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	424 ms = 0;
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	425 }
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	426
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	427 excess = lr->excess - ctx->rate * ms / 1000 + 1000;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	428
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	429 if (excess < 0) {
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	430 excess = 0;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	431 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	432
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	433 *ep = excess;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	434
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	435 if ((ngx_uint_t) excess > limit->burst) {
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	436 return NGX_BUSY;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	437 }
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	438
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	439 if (account) {
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	440 lr->excess = excess;
7281 bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	441
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	442 if (ms) {
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	443 lr->last = now;
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	444 }
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	445
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	446 return NGX_OK;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	447 }
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	448
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	449 lr->count++;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	450
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	451 ctx->node = lr;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	452
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	453 return NGX_AGAIN;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	454 }
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	455
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	456 node = (rc < 0) ? node->left : node->right;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	457 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	458
3779 57aecfdcac3d an excess was logged as 0.000 if requests were limited without delay: Igor Sysoev <igor@sysoev.ru> parents: 3525 diff changeset	459 *ep = 0;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	460
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 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	462 + 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	463 + 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	464
4419 7084faa7a4b4 Limit req: number of cleanup calls reduced. Valentin Bartenev <vbart@nginx.com> parents: 4418 diff changeset	465 ngx_http_limit_req_expire(ctx, 1);
7084faa7a4b4 Limit req: number of cleanup calls reduced. Valentin Bartenev <vbart@nginx.com> parents: 4418 diff changeset	466
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	467 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	468
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	469 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	470 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	471
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	472 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	473 if (node == NULL) {
5634 5024d29354f1 Core: slab log_nomem flag. Maxim Dounin <mdounin@mdounin.ru> parents: 5411 diff changeset	474 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	475 "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	476 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	477 }
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	478 }
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	479
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	480 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	481
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	482 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	483
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	484 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	485 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	486
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	487 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	488
4832 949ea3d3cd1a Limit req: fix of rbtree node insertion on hash collisions. Valentin Bartenev <vbart@nginx.com> parents: 4811 diff changeset	489 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	490
949ea3d3cd1a Limit req: fix of rbtree node insertion on hash collisions. Valentin Bartenev <vbart@nginx.com> parents: 4811 diff changeset	491 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	492
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	493 if (account) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	494 lr->last = now;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	495 lr->count = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	496 return NGX_OK;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	497 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	498
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	499 lr->last = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	500 lr->count = 1;
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 ctx->node = lr;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	503
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	504 return NGX_AGAIN;
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
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	507
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	508 static ngx_msec_t
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	509 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	510 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	511 {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	512 ngx_int_t excess;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	513 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	514 ngx_msec_int_t ms;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	515 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	516 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	517
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	518 excess = *ep;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	519
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	520 if ((ngx_uint_t) excess <= (*limit)->delay) {
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	521 max_delay = 0;
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 } else {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	524 ctx = (*limit)->shm_zone->data;
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	525 max_delay = (excess - (limit)->delay) 1000 / ctx->rate;
4420 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
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	528 while (n--) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	529 ctx = limits[n].shm_zone->data;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	530 lr = ctx->node;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	531
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	532 if (lr == NULL) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	533 continue;
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
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	536 ngx_shmtx_lock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	537
6653 7a6456398fc3 Simplified extraction of current time. Ruslan Ermilov <ru@nginx.com> parents: 6117 diff changeset	538 now = ngx_current_msec;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	539 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	540
7281 bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	541 if (ms < -60000) {
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	542 ms = 1;
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	543
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	544 } else if (ms < 0) {
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	545 ms = 0;
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	546 }
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	547
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	548 excess = lr->excess - ctx->rate * ms / 1000 + 1000;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	549
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	550 if (excess < 0) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	551 excess = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	552 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	553
7281 bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	554 if (ms) {
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	555 lr->last = now;
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	556 }
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	557
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	558 lr->excess = excess;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	559 lr->count--;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	560
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	561 ngx_shmtx_unlock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	562
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	563 ctx->node = NULL;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	564
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	565 if ((ngx_uint_t) excess <= limits[n].delay) {
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	566 continue;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	567 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	568
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	569 delay = (excess - limits[n].delay) * 1000 / ctx->rate;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	570
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	571 if (delay > max_delay) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	572 max_delay = delay;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	573 *ep = excess;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	574 *limit = &limits[n];
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	575 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	576 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	577
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	578 return max_delay;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	579 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	580
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	581
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	582 static void
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	583 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	584 {
2313 b56a9ba4824d use integer instead of float Igor Sysoev <igor@sysoev.ru> parents: 2312 diff changeset	585 ngx_int_t excess;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	586 ngx_msec_t now;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	587 ngx_queue_t *q;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	588 ngx_msec_int_t ms;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	589 ngx_rbtree_node_t *node;
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	590 ngx_http_limit_req_node_t *lr;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	591
6653 7a6456398fc3 Simplified extraction of current time. Ruslan Ermilov <ru@nginx.com> parents: 6117 diff changeset	592 now = ngx_current_msec;
2294 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 /*
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	595 * n == 1 deletes one or two zero rate entries
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	596 * n == 0 deletes oldest entry by force
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	597 * and one or two zero rate entries
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	598 */
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	599
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	600 while (n < 3) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	601
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	602 if (ngx_queue_empty(&ctx->sh->queue)) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	603 return;
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
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	606 q = ngx_queue_last(&ctx->sh->queue);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	607
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	608 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	609
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	610 if (lr->count) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	611
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	612 /*
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	613 * 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	614 * 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	615 */
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	616
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	617 return;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	618 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	619
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	620 if (n++ != 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	621
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	622 ms = (ngx_msec_int_t) (now - lr->last);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	623 ms = ngx_abs(ms);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	624
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	625 if (ms < 60000) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	626 return;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	627 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	628
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	629 excess = lr->excess - ctx->rate * ms / 1000;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	630
2313 b56a9ba4824d use integer instead of float Igor Sysoev <igor@sysoev.ru> parents: 2312 diff changeset	631 if (excess > 0) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	632 return;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	633 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	634 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	635
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	636 ngx_queue_remove(q);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	637
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	638 node = (ngx_rbtree_node_t *)
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	639 ((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	640
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	641 ngx_rbtree_delete(&ctx->sh->rbtree, node);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	642
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	643 ngx_slab_free_locked(ctx->shpool, node);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	644 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	645 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	646
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	647
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	648 static ngx_int_t
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	649 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	650 {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	651 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	652
2611 2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	653 size_t len;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	654 ngx_http_limit_req_ctx_t *ctx;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	655
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	656 ctx = shm_zone->data;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	657
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	658 if (octx) {
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	659 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	660 \|\| 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	661 ctx->key.value.len)
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	662 != 0)
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	663 {
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	664 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	665 "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	666 "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	667 &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	668 &octx->key.value);
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	669 return NGX_ERROR;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	670 }
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	671
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	672 ctx->sh = octx->sh;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	673 ctx->shpool = octx->shpool;
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	674
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	675 return NGX_OK;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	676 }
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	677
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	678 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	679
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	680 if (shm_zone->shm.exists) {
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	681 ctx->sh = ctx->shpool->data;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	682
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	683 return NGX_OK;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	684 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	685
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	686 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	687 if (ctx->sh == NULL) {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	688 return NGX_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	689 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	690
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	691 ctx->shpool->data = ctx->sh;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	692
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	693 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	694 ngx_http_limit_req_rbtree_insert_value);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	695
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	696 ngx_queue_init(&ctx->sh->queue);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	697
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	698 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	699
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	700 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	701 if (ctx->shpool->log_ctx == NULL) {
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	702 return NGX_ERROR;
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	703 }
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	704
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	705 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	706 &shm_zone->shm.name);
2611 2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	707
5634 5024d29354f1 Core: slab log_nomem flag. Maxim Dounin <mdounin@mdounin.ru> parents: 5411 diff changeset	708 ctx->shpool->log_nomem = 0;
5024d29354f1 Core: slab log_nomem flag. Maxim Dounin <mdounin@mdounin.ru> parents: 5411 diff changeset	709
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	710 return NGX_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	711 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	712
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	713
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	714 static void *
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	715 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	716 {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	717 ngx_http_limit_req_conf_t *conf;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	718
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	719 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	720 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	721 return NULL;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	722 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	723
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	724 /*
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	725 * set by ngx_pcalloc():
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	726 *
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	727 * conf->limits.elts = NULL;
980 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
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	730 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	731 conf->status_code = NGX_CONF_UNSET_UINT;
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	732 conf->dry_run = NGX_CONF_UNSET;
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	733
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	734 return conf;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	735 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	736
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	737
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	738 static char *
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	739 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	740 {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	741 ngx_http_limit_req_conf_t *prev = parent;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	742 ngx_http_limit_req_conf_t *conf = child;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	743
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	744 if (conf->limits.elts == NULL) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	745 conf->limits = prev->limits;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	746 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	747
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	748 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	749 NGX_LOG_ERR);
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	750
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	751 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	752 NGX_LOG_INFO : conf->limit_log_level + 1;
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	753
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	754 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	755 NGX_HTTP_SERVICE_UNAVAILABLE);
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	756
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	757 ngx_conf_merge_value(conf->dry_run, prev->dry_run, 0);
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	758
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	759 return NGX_CONF_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	760 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	761
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	762
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	763 static char *
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	764 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	765 {
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	766 u_char *p;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	767 size_t len;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	768 ssize_t size;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	769 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	770 ngx_int_t rate, scale;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	771 ngx_uint_t i;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	772 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	773 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	774 ngx_http_compile_complex_value_t ccv;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	775
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	776 value = cf->args->elts;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	777
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	778 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	779 if (ctx == NULL) {
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	780 return NGX_CONF_ERROR;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	781 }
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	782
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	783 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	784
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	785 ccv.cf = cf;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	786 ccv.value = &value[1];
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	787 ccv.complex_value = &ctx->key;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	788
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	789 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	790 return NGX_CONF_ERROR;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	791 }
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	792
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	793 size = 0;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	794 rate = 1;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	795 scale = 1;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	796 name.len = 0;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	797
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	798 for (i = 2; i < cf->args->nelts; i++) {
2294 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, "zone=", 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 name.data = value[i].data + 5;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	803
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	804 p = (u_char *) ngx_strchr(name.data, ':');
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	805
4417 9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	806 if (p == NULL) {
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	807 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	808 "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	809 return NGX_CONF_ERROR;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	810 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	811
4417 9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	812 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	813
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	814 s.data = p + 1;
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	815 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	816
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	817 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	818
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	819 if (size == NGX_ERROR) {
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	820 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	821 "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	822 return NGX_CONF_ERROR;
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	823 }
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	824
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	825 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	826 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	827 "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	828 return NGX_CONF_ERROR;
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	829 }
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	830
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	831 continue;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	832 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	833
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	834 if (ngx_strncmp(value[i].data, "rate=", 5) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	835
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	836 len = value[i].len;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	837 p = value[i].data + len - 3;
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	838
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	839 if (ngx_strncmp(p, "r/s", 3) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	840 scale = 1;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	841 len -= 3;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	842
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	843 } else if (ngx_strncmp(p, "r/m", 3) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	844 scale = 60;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	845 len -= 3;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	846 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	847
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	848 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	849 if (rate <= 0) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	850 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	851 "invalid rate \"%V\"", &value[i]);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	852 return NGX_CONF_ERROR;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	853 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	854
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	855 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	856 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	857
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	858 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	859 "invalid parameter \"%V\"", &value[i]);
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	860 return NGX_CONF_ERROR;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	861 }
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	862
4417 9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	863 if (name.len == 0) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	864 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	865 "\"%V\" must have \"zone\" parameter",
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	866 &cmd->name);
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	867 return NGX_CONF_ERROR;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	868 }
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	869
2313 b56a9ba4824d use integer instead of float Igor Sysoev <igor@sysoev.ru> parents: 2312 diff changeset	870 ctx->rate = rate * 1000 / scale;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	871
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	872 shm_zone = ngx_shared_memory_add(cf, &name, size,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	873 &ngx_http_limit_req_module);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	874 if (shm_zone == NULL) {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	875 return NGX_CONF_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	876 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	877
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	878 if (shm_zone->data) {
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	879 ctx = shm_zone->data;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	880
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	881 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	882 "%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	883 &cmd->name, &name, &ctx->key.value);
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	884 return NGX_CONF_ERROR;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	885 }
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	886
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	887 shm_zone->init = ngx_http_limit_req_init_zone;
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	888 shm_zone->data = ctx;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	889
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	890 return NGX_CONF_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	891 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	892
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	893
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	894 static char *
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	895 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	896 {
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	897 ngx_http_limit_req_conf_t *lrcf = conf;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	898
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	899 ngx_int_t burst, delay;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	900 ngx_str_t *value, s;
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	901 ngx_uint_t i;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	902 ngx_shm_zone_t *shm_zone;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	903 ngx_http_limit_req_limit_t limit, limits;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	904
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	905 value = cf->args->elts;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	906
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	907 shm_zone = NULL;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	908 burst = 0;
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	909 delay = 0;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	910
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	911 for (i = 1; i < cf->args->nelts; i++) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	912
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	913 if (ngx_strncmp(value[i].data, "zone=", 5) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	914
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	915 s.len = value[i].len - 5;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	916 s.data = value[i].data + 5;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	917
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	918 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	919 &ngx_http_limit_req_module);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	920 if (shm_zone == NULL) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	921 return NGX_CONF_ERROR;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	922 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	923
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	924 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	925 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	926
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	927 if (ngx_strncmp(value[i].data, "burst=", 6) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	928
2300 159136c9808d ) correct leaky bucket implementation Igor Sysoev <igor@sysoev.ru>* parents: 2294 diff changeset	929 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	930 if (burst <= 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	931 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
7398 bca4dad0d3cb Limit req: fixed error message wording. Maxim Dounin <mdounin@mdounin.ru> parents: 7281 diff changeset	932 "invalid burst value \"%V\"", &value[i]);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	933 return NGX_CONF_ERROR;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	934 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	935
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	936 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	937 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	938
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	939 if (ngx_strncmp(value[i].data, "delay=", 6) == 0) {
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	940
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	941 delay = ngx_atoi(value[i].data + 6, value[i].len - 6);
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	942 if (delay <= 0) {
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	943 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	944 "invalid delay value \"%V\"", &value[i]);
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	945 return NGX_CONF_ERROR;
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	946 }
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	947
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	948 continue;
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	949 }
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	950
5411 5483d9e77b32 Limit req: fixed "nodelay" parsing. Maxim Dounin <mdounin@mdounin.ru> parents: 5166 diff changeset	951 if (ngx_strcmp(value[i].data, "nodelay") == 0) {
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	952 delay = NGX_MAX_INT_T_VALUE / 1000;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	953 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	954 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	955
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	956 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	957 "invalid parameter \"%V\"", &value[i]);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	958 return NGX_CONF_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	959 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	960
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	961 if (shm_zone == NULL) {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	962 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	963 "\"%V\" must have \"zone\" parameter",
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	964 &cmd->name);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	965 return NGX_CONF_ERROR;
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
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	968 limits = lrcf->limits.elts;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	969
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	970 if (limits == NULL) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	971 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	972 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	973 != NGX_OK)
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	974 {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	975 return NGX_CONF_ERROR;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	976 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	977 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	978
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	979 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	980 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	981 return "is duplicate";
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	982 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	983 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	984
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	985 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	986 if (limit == NULL) {
21d1e3bcb356 Added three missing checks for NULL after ngx_array_push() calls. Valentin Bartenev <vbart@nginx.com> parents: 4499 diff changeset	987 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	988 }
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	989
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	990 limit->shm_zone = shm_zone;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	991 limit->burst = burst * 1000;
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	992 limit->delay = delay * 1000;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	993
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	994 return NGX_CONF_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	995 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	996
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	997
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	998 static ngx_int_t
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	999 ngx_http_limit_req_init(ngx_conf_t *cf)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1000 {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1001 ngx_http_handler_pt *h;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1002 ngx_http_core_main_conf_t *cmcf;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1003
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1004 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	1005
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1006 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	1007 if (h == NULL) {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1008 return NGX_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1009 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1010
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	1011 *h = ngx_http_limit_req_handler;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1012
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1013 return NGX_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1014 }

Mercurial > hg > nginx

annotate src/http/modules/ngx_http_limit_req_module.c @ 7515:2db68852d6a0