nginx: src/http/modules/ngx_http_limit_req

annotate src/http/modules/ngx_http_limit_req_module.c @ 7592:776d1bebdca2

Limit req: $limit_req_status variable. The variable takes one of the values: PASSED, DELAYED, REJECTED, DELAYED_DRY_RUN or REJECTED_DRY_RUN.

author	Roman Arutyunyan <arut@nginx.com>
date	Wed, 06 Nov 2019 19:03:18 +0300
parents	2db68852d6a0
children	559d19037984

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
7592 776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	13 #define NGX_HTTP_LIMIT_REQ_PASSED 1
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	14 #define NGX_HTTP_LIMIT_REQ_DELAYED 2
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	15 #define NGX_HTTP_LIMIT_REQ_REJECTED 3
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	16 #define NGX_HTTP_LIMIT_REQ_DELAYED_DRY_RUN 4
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	17 #define NGX_HTTP_LIMIT_REQ_REJECTED_DRY_RUN 5
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	18
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	19
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	20 typedef struct {
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	21 u_char color;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	22 u_char dummy;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	23 u_short len;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	24 ngx_queue_t queue;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	25 ngx_msec_t last;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	26 /* 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	27 ngx_uint_t excess;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	28 ngx_uint_t count;
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	29 u_char data[1];
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	30 } ngx_http_limit_req_node_t;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	31
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	32
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	33 typedef struct {
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	34 ngx_rbtree_t rbtree;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	35 ngx_rbtree_node_t sentinel;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	36 ngx_queue_t queue;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	37 } ngx_http_limit_req_shctx_t;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	38
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	39
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	40 typedef struct {
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	41 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	42 ngx_slab_pool_t *shpool;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	43 /* 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	44 ngx_uint_t rate;
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	45 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	46 ngx_http_limit_req_node_t *node;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	47 } ngx_http_limit_req_ctx_t;
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	48
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	49
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	50 typedef struct {
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	51 ngx_shm_zone_t *shm_zone;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	52 /* 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	53 ngx_uint_t burst;
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	54 ngx_uint_t delay;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	55 } ngx_http_limit_req_limit_t;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	56
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	57
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	58 typedef struct {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	59 ngx_array_t limits;
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	60 ngx_uint_t limit_log_level;
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	61 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	62 ngx_uint_t status_code;
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	63 ngx_flag_t dry_run;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	64 } ngx_http_limit_req_conf_t;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	65
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	66
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	67 static void ngx_http_limit_req_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	68 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	69 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	70 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	71 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	72 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	73 ngx_uint_t n);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	74
7592 776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	75 static ngx_int_t ngx_http_limit_req_status_variable(ngx_http_request_t *r,
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	76 ngx_http_variable_value_t *v, uintptr_t data);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	77 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	78 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	79 void *child);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	80 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	81 void *conf);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	82 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	83 void *conf);
7592 776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	84 static ngx_int_t ngx_http_limit_req_add_variables(ngx_conf_t *cf);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	85 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	86
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	87
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	88 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	89 { ngx_string("info"), NGX_LOG_INFO },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	90 { ngx_string("notice"), NGX_LOG_NOTICE },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	91 { ngx_string("warn"), NGX_LOG_WARN },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	92 { ngx_string("error"), NGX_LOG_ERR },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	93 { ngx_null_string, 0 }
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	94 };
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	95
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	96
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	97 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	98 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	99 };
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	100
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	101
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	102 static ngx_command_t ngx_http_limit_req_commands[] = {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	103
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	104 { ngx_string("limit_req_zone"),
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	105 NGX_HTTP_MAIN_CONF\|NGX_CONF_TAKE3,
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	106 ngx_http_limit_req_zone,
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	107 0,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	108 0,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	109 NULL },
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	110
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	111 { ngx_string("limit_req"),
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	112 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	113 ngx_http_limit_req,
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	114 NGX_HTTP_LOC_CONF_OFFSET,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	115 0,
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	116 NULL },
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	117
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	118 { ngx_string("limit_req_log_level"),
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	119 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	120 ngx_conf_set_enum_slot,
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	121 NGX_HTTP_LOC_CONF_OFFSET,
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	122 offsetof(ngx_http_limit_req_conf_t, limit_log_level),
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	123 &ngx_http_limit_req_log_levels },
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	124
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	125 { ngx_string("limit_req_status"),
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	126 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	127 ngx_conf_set_num_slot,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	128 NGX_HTTP_LOC_CONF_OFFSET,
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	129 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	130 &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	131
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	132 { ngx_string("limit_req_dry_run"),
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	133 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	134 ngx_conf_set_flag_slot,
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	135 NGX_HTTP_LOC_CONF_OFFSET,
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	136 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	137 NULL },
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	138
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	139 ngx_null_command
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	140 };
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	141
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	142
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	143 static ngx_http_module_t ngx_http_limit_req_module_ctx = {
7592 776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	144 ngx_http_limit_req_add_variables, /* preconfiguration */
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	145 ngx_http_limit_req_init, /* postconfiguration */
980 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 NULL, /* create main configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	148 NULL, /* init main configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	149
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	150 NULL, /* create server configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	151 NULL, /* merge server configuration */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	152
4499 778ef9c3fd2d Fixed spelling in single-line comments. Ruslan Ermilov <ru@nginx.com> parents: 4497 diff changeset	153 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	154 ngx_http_limit_req_merge_conf /* merge location configuration */
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	155 };
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	156
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	157
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	158 ngx_module_t ngx_http_limit_req_module = {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	159 NGX_MODULE_V1,
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	160 &ngx_http_limit_req_module_ctx, /* module context */
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	161 ngx_http_limit_req_commands, /* module directives */
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	162 NGX_HTTP_MODULE, /* module type */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	163 NULL, /* init master */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	164 NULL, /* init module */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	165 NULL, /* init process */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	166 NULL, /* init thread */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	167 NULL, /* exit thread */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	168 NULL, /* exit process */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	169 NULL, /* exit master */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	170 NGX_MODULE_V1_PADDING
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	171 };
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	172
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	173
7592 776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	174 static ngx_http_variable_t ngx_http_limit_req_vars[] = {
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	175
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	176 { ngx_string("limit_req_status"), NULL,
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	177 ngx_http_limit_req_status_variable, 0, NGX_HTTP_VAR_NOCACHEABLE, 0 },
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	178
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	179 ngx_http_null_variable
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	180 };
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	181
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	182
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	183 static ngx_str_t ngx_http_limit_req_status[] = {
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	184 ngx_string("PASSED"),
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	185 ngx_string("DELAYED"),
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	186 ngx_string("REJECTED"),
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	187 ngx_string("DELAYED_DRY_RUN"),
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	188 ngx_string("REJECTED_DRY_RUN")
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	189 };
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	190
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	191
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	192 static ngx_int_t
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	193 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	194 {
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	195 uint32_t hash;
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	196 ngx_str_t key;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	197 ngx_int_t rc;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	198 ngx_uint_t n, excess;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	199 ngx_msec_t delay;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	200 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	201 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	202 ngx_http_limit_req_limit_t limit, limits;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	203
7592 776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	204 if (r->main->limit_req_status) {
984 dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	205 return NGX_DECLINED;
dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	206 }
dd128232e6ba count connection once per request Igor Sysoev <igor@sysoev.ru> parents: 981 diff changeset	207
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	208 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	209 limits = lrcf->limits.elts;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	210
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	211 excess = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	212
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	213 rc = NGX_DECLINED;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	214
4424 aacd7356c197 Limit req: unbreak compilation with MSVC. Maxim Dounin <mdounin@mdounin.ru> parents: 4420 diff changeset	215 #if (NGX_SUPPRESS_WARN)
aacd7356c197 Limit req: unbreak compilation with MSVC. Maxim Dounin <mdounin@mdounin.ru> parents: 4420 diff changeset	216 limit = NULL;
aacd7356c197 Limit req: unbreak compilation with MSVC. Maxim Dounin <mdounin@mdounin.ru> parents: 4420 diff changeset	217 #endif
aacd7356c197 Limit req: unbreak compilation with MSVC. Maxim Dounin <mdounin@mdounin.ru> parents: 4420 diff changeset	218
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	219 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	220
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	221 limit = &limits[n];
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	222
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	223 ctx = limit->shm_zone->data;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	224
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	225 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	226 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	227 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	228
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	229 if (key.len == 0) {
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	230 continue;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	231 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	232
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	233 if (key.len > 65535) {
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	234 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	235 "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	236 "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	237 &ctx->key.value, &key);
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	238 continue;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	239 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	240
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	241 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	242
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	243 ngx_shmtx_lock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	244
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	245 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	246 (n == lrcf->limits.nelts - 1));
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	247
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	248 ngx_shmtx_unlock(&ctx->shpool->mutex);
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 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	251 "limit_req[%ui]: %i %ui.%03ui",
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	252 n, rc, excess / 1000, excess % 1000);
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 if (rc != NGX_AGAIN) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	255 break;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	256 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	257 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	258
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	259 if (rc == NGX_DECLINED) {
1011 19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	260 return NGX_DECLINED;
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	261 }
19118c44303f test length of variable and number of connections Igor Sysoev <igor@sysoev.ru> parents: 1002 diff changeset	262
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	263 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	264
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	265 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	266 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	267 "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	268 lrcf->dry_run ? ", dry run" : "",
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	269 excess / 1000, excess % 1000,
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	270 &limit->shm_zone->shm.name);
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	271 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	272
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	273 while (n--) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	274 ctx = limits[n].shm_zone->data;
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 if (ctx->node == NULL) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	277 continue;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	278 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	279
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	280 ngx_shmtx_lock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	281
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	282 ctx->node->count--;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	283
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	284 ngx_shmtx_unlock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	285
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	286 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	287 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	288
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	289 if (lrcf->dry_run) {
7592 776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	290 r->main->limit_req_status = NGX_HTTP_LIMIT_REQ_REJECTED_DRY_RUN;
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	291 return NGX_DECLINED;
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	292 }
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	293
7592 776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	294 r->main->limit_req_status = NGX_HTTP_LIMIT_REQ_REJECTED;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	295
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	296 return lrcf->status_code;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	297 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	298
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	299 /* rc == NGX_AGAIN \|\| rc == NGX_OK */
2300 159136c9808d ) correct leaky bucket implementation Igor Sysoev <igor@sysoev.ru>* parents: 2294 diff changeset	300
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	301 if (rc == NGX_AGAIN) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	302 excess = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	303 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	304
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	305 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	306
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	307 if (!delay) {
7592 776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	308 r->main->limit_req_status = NGX_HTTP_LIMIT_REQ_PASSED;
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	309 return NGX_DECLINED;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	310 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	311
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	312 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	313 "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	314 lrcf->dry_run ? ", dry run" : "",
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	315 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	316
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	317 if (lrcf->dry_run) {
7592 776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	318 r->main->limit_req_status = NGX_HTTP_LIMIT_REQ_DELAYED_DRY_RUN;
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	319 return NGX_DECLINED;
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	320 }
2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	321
7592 776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	322 r->main->limit_req_status = NGX_HTTP_LIMIT_REQ_DELAYED;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	323
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	324 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	325 return NGX_HTTP_INTERNAL_SERVER_ERROR;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	326 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	327
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	328 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	329 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	330
7fcf209d40c8 Limit req: fixed delaying subrequests. Maxim Dounin <mdounin@mdounin.ru> parents: 6653 diff changeset	331 r->connection->write->delayed = 1;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	332 ngx_add_timer(r->connection->write, delay);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	333
3780 d94d7104f598 change order of limit_req lookup result processing Igor Sysoev <igor@sysoev.ru> parents: 3779 diff changeset	334 return NGX_AGAIN;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	335 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	336
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	337
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	338 static void
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	339 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	340 {
2972 c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	341 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	342
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	343 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
2973 70c8b2d28d1d style fix Igor Sysoev <igor@sysoev.ru> parents: 2972 diff changeset	344 "limit_req delay");
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	345
2972 c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	346 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	347
6961 903fb1ddc07f Moved handling of wev->delayed to the connection event handler. Maxim Dounin <mdounin@mdounin.ru> parents: 6959 diff changeset	348 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	349
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	350 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	351 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	352 }
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	353
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	354 return;
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	355 }
c5ad288f851d fix client write event handling in ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 2912 diff changeset	356
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	357 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	358 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	359 return;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	360 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	361
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	362 r->read_event_handler = ngx_http_block_reading;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	363 r->write_event_handler = ngx_http_core_run_phases;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	364
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	365 ngx_http_core_run_phases(r);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	366 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	367
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	368
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	369 static void
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	370 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	371 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	372 {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	373 ngx_rbtree_node_t **p;
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	374 ngx_http_limit_req_node_t lrn, lrnt;
1026 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 for ( ;; ) {
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	377
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	378 if (node->key < temp->key) {
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	379
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	380 p = &temp->left;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	381
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	382 } else if (node->key > temp->key) {
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	383
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	384 p = &temp->right;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	385
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	386 } else { /* node->key == temp->key */
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	387
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	388 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	389 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	390
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	391 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	392 ? &temp->left : &temp->right;
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	393 }
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	394
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	395 if (*p == sentinel) {
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	396 break;
4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	397 }
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	398
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	399 temp = *p;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	400 }
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	401
1743 4fc402c3ec73 optimize rbtree initialization and insert Igor Sysoev <igor@sysoev.ru> parents: 1406 diff changeset	402 *p = node;
1026 38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	403 node->parent = temp;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	404 node->left = sentinel;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	405 node->right = sentinel;
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	406 ngx_rbt_red(node);
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	407 }
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	408
38be15c1379a fix duplicate rbtree keys case Igor Sysoev <igor@sysoev.ru> parents: 1012 diff changeset	409
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	410 static ngx_int_t
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	411 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	412 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	413 {
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	414 size_t size;
2313 b56a9ba4824d use integer instead of float Igor Sysoev <igor@sysoev.ru> parents: 2312 diff changeset	415 ngx_int_t rc, excess;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	416 ngx_msec_t now;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	417 ngx_msec_int_t ms;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	418 ngx_rbtree_node_t node, sentinel;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	419 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	420 ngx_http_limit_req_node_t *lr;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	421
6653 7a6456398fc3 Simplified extraction of current time. Ruslan Ermilov <ru@nginx.com> parents: 6117 diff changeset	422 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	423
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	424 ctx = limit->shm_zone->data;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	425
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	426 node = ctx->sh->rbtree.root;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	427 sentinel = ctx->sh->rbtree.sentinel;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	428
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	429 while (node != sentinel) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	430
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	431 if (hash < node->key) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	432 node = node->left;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	433 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	434 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	435
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	436 if (hash > node->key) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	437 node = node->right;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	438 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	439 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	440
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	441 /* hash == node->key */
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	442
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	443 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	444
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	445 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	446
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	447 if (rc == 0) {
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	448 ngx_queue_remove(&lr->queue);
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	449 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	450
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	451 ms = (ngx_msec_int_t) (now - lr->last);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	452
7281 bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	453 if (ms < -60000) {
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	454 ms = 1;
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	455
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	456 } else if (ms < 0) {
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	457 ms = 0;
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	458 }
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	459
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	460 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	461
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	462 if (excess < 0) {
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	463 excess = 0;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	464 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	465
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	466 *ep = excess;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	467
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	468 if ((ngx_uint_t) excess > limit->burst) {
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	469 return NGX_BUSY;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	470 }
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	471
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	472 if (account) {
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	473 lr->excess = excess;
7281 bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	474
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	475 if (ms) {
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	476 lr->last = now;
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	477 }
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	478
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	479 return NGX_OK;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	480 }
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	481
4497 95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	482 lr->count++;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	483
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	484 ctx->node = lr;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	485
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	486 return NGX_AGAIN;
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	487 }
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	488
95ab6658654a Fix of rbtree lookup on hash collisions. Maxim Dounin <mdounin@mdounin.ru> parents: 4424 diff changeset	489 node = (rc < 0) ? node->left : node->right;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	490 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	491
3779 57aecfdcac3d an excess was logged as 0.000 if requests were limited without delay: Igor Sysoev <igor@sysoev.ru> parents: 3525 diff changeset	492 *ep = 0;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	493
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	494 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	495 + 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	496 + 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	497
4419 7084faa7a4b4 Limit req: number of cleanup calls reduced. Valentin Bartenev <vbart@nginx.com> parents: 4418 diff changeset	498 ngx_http_limit_req_expire(ctx, 1);
7084faa7a4b4 Limit req: number of cleanup calls reduced. Valentin Bartenev <vbart@nginx.com> parents: 4418 diff changeset	499
4418 aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	500 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	501
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	502 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	503 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	504
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	505 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	506 if (node == NULL) {
5634 5024d29354f1 Core: slab log_nomem flag. Maxim Dounin <mdounin@mdounin.ru> parents: 5411 diff changeset	507 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	508 "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	509 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	510 }
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	511 }
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	512
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	513 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	514
aac79fc948cc Limit req: allocation and initialization of a new node moved to the lookup Valentin Bartenev <vbart@nginx.com> parents: 4417 diff changeset	515 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	516
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	517 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	518 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	519
5863 102f85699420 Limit req: reduced number of parameters in the lookup function. Valentin Bartenev <vbart@nginx.com> parents: 5862 diff changeset	520 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	521
4832 949ea3d3cd1a Limit req: fix of rbtree node insertion on hash collisions. Valentin Bartenev <vbart@nginx.com> parents: 4811 diff changeset	522 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	523
949ea3d3cd1a Limit req: fix of rbtree node insertion on hash collisions. Valentin Bartenev <vbart@nginx.com> parents: 4811 diff changeset	524 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	525
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	526 if (account) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	527 lr->last = now;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	528 lr->count = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	529 return NGX_OK;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	530 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	531
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	532 lr->last = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	533 lr->count = 1;
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 ctx->node = lr;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	536
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	537 return NGX_AGAIN;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	538 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	539
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	540
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	541 static ngx_msec_t
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	542 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	543 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	544 {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	545 ngx_int_t excess;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	546 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	547 ngx_msec_int_t ms;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	548 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	549 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	550
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	551 excess = *ep;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	552
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	553 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	554 max_delay = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	555
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	556 } else {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	557 ctx = (*limit)->shm_zone->data;
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	558 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	559 }
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 while (n--) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	562 ctx = limits[n].shm_zone->data;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	563 lr = ctx->node;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	564
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	565 if (lr == NULL) {
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
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	569 ngx_shmtx_lock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	570
6653 7a6456398fc3 Simplified extraction of current time. Ruslan Ermilov <ru@nginx.com> parents: 6117 diff changeset	571 now = ngx_current_msec;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	572 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	573
7281 bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	574 if (ms < -60000) {
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	575 ms = 1;
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	576
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	577 } else if (ms < 0) {
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	578 ms = 0;
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	579 }
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	580
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	581 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	582
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	583 if (excess < 0) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	584 excess = 0;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	585 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	586
7281 bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	587 if (ms) {
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	588 lr->last = now;
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	589 }
bd6563e81cea Limit req: improved handling of negative times. Maxim Dounin <mdounin@mdounin.ru> parents: 6961 diff changeset	590
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	591 lr->excess = excess;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	592 lr->count--;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	593
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	594 ngx_shmtx_unlock(&ctx->shpool->mutex);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	595
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	596 ctx->node = NULL;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	597
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	598 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	599 continue;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	600 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	601
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	602 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	603
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	604 if (delay > max_delay) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	605 max_delay = delay;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	606 *ep = excess;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	607 *limit = &limits[n];
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	608 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	609 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	610
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	611 return max_delay;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	612 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	613
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	614
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	615 static void
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	616 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	617 {
2313 b56a9ba4824d use integer instead of float Igor Sysoev <igor@sysoev.ru> parents: 2312 diff changeset	618 ngx_int_t excess;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	619 ngx_msec_t now;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	620 ngx_queue_t *q;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	621 ngx_msec_int_t ms;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	622 ngx_rbtree_node_t *node;
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	623 ngx_http_limit_req_node_t *lr;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	624
6653 7a6456398fc3 Simplified extraction of current time. Ruslan Ermilov <ru@nginx.com> parents: 6117 diff changeset	625 now = ngx_current_msec;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	626
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 * n == 1 deletes one or two zero rate entries
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	629 * n == 0 deletes oldest entry by force
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	630 * and one or two zero rate entries
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	631 */
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	632
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	633 while (n < 3) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	634
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	635 if (ngx_queue_empty(&ctx->sh->queue)) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	636 return;
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
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	639 q = ngx_queue_last(&ctx->sh->queue);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	640
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	641 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	642
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	643 if (lr->count) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	644
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	645 /*
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	646 * 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	647 * 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	648 */
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	649
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	650 return;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	651 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	652
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	653 if (n++ != 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	654
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	655 ms = (ngx_msec_int_t) (now - lr->last);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	656 ms = ngx_abs(ms);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	657
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	658 if (ms < 60000) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	659 return;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	660 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	661
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	662 excess = lr->excess - ctx->rate * ms / 1000;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	663
2313 b56a9ba4824d use integer instead of float Igor Sysoev <igor@sysoev.ru> parents: 2312 diff changeset	664 if (excess > 0) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	665 return;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	666 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	667 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	668
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	669 ngx_queue_remove(q);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	670
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	671 node = (ngx_rbtree_node_t *)
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	672 ((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	673
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	674 ngx_rbtree_delete(&ctx->sh->rbtree, node);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	675
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	676 ngx_slab_free_locked(ctx->shpool, node);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	677 }
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	678 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	679
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	680
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	681 static ngx_int_t
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	682 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	683 {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	684 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	685
2611 2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	686 size_t len;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	687 ngx_http_limit_req_ctx_t *ctx;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	688
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	689 ctx = shm_zone->data;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	690
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	691 if (octx) {
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	692 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	693 \|\| 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	694 ctx->key.value.len)
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	695 != 0)
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	696 {
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	697 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	698 "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	699 "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	700 &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	701 &octx->key.value);
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	702 return NGX_ERROR;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	703 }
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	704
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	705 ctx->sh = octx->sh;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	706 ctx->shpool = octx->shpool;
993 1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	707
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	708 return NGX_OK;
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	709 }
1b9a4d92173f pass the inherited shm_zone data Igor Sysoev <igor@sysoev.ru> parents: 987 diff changeset	710
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	711 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	712
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	713 if (shm_zone->shm.exists) {
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	714 ctx->sh = ctx->shpool->data;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	715
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	716 return NGX_OK;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	717 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	718
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	719 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	720 if (ctx->sh == NULL) {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	721 return NGX_ERROR;
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
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	724 ctx->shpool->data = ctx->sh;
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	725
b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	726 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	727 ngx_http_limit_req_rbtree_insert_value);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	728
2720 b3b8c66bd520 support attaching to an existent Win32 shared memory Igor Sysoev <igor@sysoev.ru> parents: 2716 diff changeset	729 ngx_queue_init(&ctx->sh->queue);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	730
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	731 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	732
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	733 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	734 if (ctx->shpool->log_ctx == NULL) {
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	735 return NGX_ERROR;
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	736 }
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	737
2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	738 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	739 &shm_zone->shm.name);
2611 2bce3f6416c6 improve ngx_slab_alloc() error logging Igor Sysoev <igor@sysoev.ru> parents: 2376 diff changeset	740
5634 5024d29354f1 Core: slab log_nomem flag. Maxim Dounin <mdounin@mdounin.ru> parents: 5411 diff changeset	741 ctx->shpool->log_nomem = 0;
5024d29354f1 Core: slab log_nomem flag. Maxim Dounin <mdounin@mdounin.ru> parents: 5411 diff changeset	742
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	743 return NGX_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	744 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	745
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	746
7592 776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	747 static ngx_int_t
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	748 ngx_http_limit_req_status_variable(ngx_http_request_t *r,
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	749 ngx_http_variable_value_t *v, uintptr_t data)
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	750 {
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	751 if (r->main->limit_req_status == 0) {
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	752 v->not_found = 1;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	753 return NGX_OK;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	754 }
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	755
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	756 v->valid = 1;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	757 v->no_cacheable = 0;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	758 v->not_found = 0;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	759 v->len = ngx_http_limit_req_status[r->main->limit_req_status - 1].len;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	760 v->data = ngx_http_limit_req_status[r->main->limit_req_status - 1].data;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	761
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	762 return NGX_OK;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	763 }
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	764
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	765
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	766 static void *
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	767 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	768 {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	769 ngx_http_limit_req_conf_t *conf;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	770
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	771 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	772 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	773 return NULL;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	774 }
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 /*
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	777 * set by ngx_pcalloc():
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	778 *
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	779 * conf->limits.elts = NULL;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	780 */
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	781
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	782 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	783 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	784 conf->dry_run = NGX_CONF_UNSET;
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	785
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	786 return conf;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	787 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	788
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	789
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	790 static char *
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	791 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	792 {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	793 ngx_http_limit_req_conf_t *prev = parent;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	794 ngx_http_limit_req_conf_t *conf = child;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	795
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	796 if (conf->limits.elts == NULL) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	797 conf->limits = prev->limits;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	798 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	799
3185 30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	800 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	801 NGX_LOG_ERR);
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	802
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	803 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	804 NGX_LOG_INFO : conf->limit_log_level + 1;
30570a5b9bb0 limit_req_log_level Igor Sysoev <igor@sysoev.ru> parents: 3183 diff changeset	805
5117 00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	806 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	807 NGX_HTTP_SERVICE_UNAVAILABLE);
00e4459739ed The limit_req_status and limit_conn_status directives. Maxim Dounin <mdounin@mdounin.ru> parents: 4832 diff changeset	808
7515 2db68852d6a0 Limit req: limit_req_dry_run directive. Roman Arutyunyan <arut@nginx.com> parents: 7399 diff changeset	809 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	810
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	811 return NGX_CONF_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	812 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	813
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	814
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	815 static char *
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	816 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	817 {
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	818 u_char *p;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	819 size_t len;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	820 ssize_t size;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	821 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	822 ngx_int_t rate, scale;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	823 ngx_uint_t i;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	824 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	825 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	826 ngx_http_compile_complex_value_t ccv;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	827
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	828 value = cf->args->elts;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	829
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	830 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	831 if (ctx == NULL) {
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	832 return NGX_CONF_ERROR;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	833 }
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	834
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	835 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	836
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	837 ccv.cf = cf;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	838 ccv.value = &value[1];
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	839 ccv.complex_value = &ctx->key;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	840
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	841 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	842 return NGX_CONF_ERROR;
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	843 }
ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	844
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	845 size = 0;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	846 rate = 1;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	847 scale = 1;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	848 name.len = 0;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	849
5862 ecbb99aa0e12 Limit req: use complex value in limit_req_zone. Valentin Bartenev <vbart@nginx.com> parents: 5846 diff changeset	850 for (i = 2; i < cf->args->nelts; i++) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	851
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	852 if (ngx_strncmp(value[i].data, "zone=", 5) == 0) {
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 name.data = value[i].data + 5;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	855
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	856 p = (u_char *) ngx_strchr(name.data, ':');
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	857
4417 9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	858 if (p == NULL) {
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	859 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	860 "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	861 return NGX_CONF_ERROR;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	862 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	863
4417 9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	864 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	865
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	866 s.data = p + 1;
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	867 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	868
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	869 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	870
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	871 if (size == NGX_ERROR) {
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	872 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	873 "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	874 return NGX_CONF_ERROR;
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	875 }
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	876
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	877 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	878 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	879 "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	880 return NGX_CONF_ERROR;
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	881 }
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	882
9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	883 continue;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	884 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	885
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	886 if (ngx_strncmp(value[i].data, "rate=", 5) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	887
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	888 len = value[i].len;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	889 p = value[i].data + len - 3;
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	890
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	891 if (ngx_strncmp(p, "r/s", 3) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	892 scale = 1;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	893 len -= 3;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	894
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	895 } else if (ngx_strncmp(p, "r/m", 3) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	896 scale = 60;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	897 len -= 3;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	898 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	899
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	900 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	901 if (rate <= 0) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	902 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	903 "invalid rate \"%V\"", &value[i]);
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	904 return NGX_CONF_ERROR;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	905 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	906
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	907 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	908 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	909
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	910 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	911 "invalid parameter \"%V\"", &value[i]);
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	912 return NGX_CONF_ERROR;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	913 }
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	914
4417 9e9d2e06f933 Limit req: improved error handling when parsing "zone" parameter of Valentin Bartenev <vbart@nginx.com> parents: 4416 diff changeset	915 if (name.len == 0) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	916 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	917 "\"%V\" must have \"zone\" parameter",
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	918 &cmd->name);
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	919 return NGX_CONF_ERROR;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	920 }
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	921
2313 b56a9ba4824d use integer instead of float Igor Sysoev <igor@sysoev.ru> parents: 2312 diff changeset	922 ctx->rate = rate * 1000 / scale;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	923
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	924 shm_zone = ngx_shared_memory_add(cf, &name, size,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	925 &ngx_http_limit_req_module);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	926 if (shm_zone == NULL) {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	927 return NGX_CONF_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	928 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	929
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	930 if (shm_zone->data) {
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	931 ctx = shm_zone->data;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	932
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	933 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	934 "%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	935 &cmd->name, &name, &ctx->key.value);
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	936 return NGX_CONF_ERROR;
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	937 }
14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	938
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	939 shm_zone->init = ngx_http_limit_req_init_zone;
987 14e68f471d02 new syntax Igor Sysoev <igor@sysoev.ru> parents: 984 diff changeset	940 shm_zone->data = ctx;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	941
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	942 return NGX_CONF_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	943 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	944
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	945
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	946 static char *
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	947 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	948 {
2374 7b11f9a1bfe1 rename "lz" to "lr" in variable names Igor Sysoev <igor@sysoev.ru> parents: 2313 diff changeset	949 ngx_http_limit_req_conf_t *lrcf = conf;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	950
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	951 ngx_int_t burst, delay;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	952 ngx_str_t *value, s;
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	953 ngx_uint_t i;
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	954 ngx_shm_zone_t *shm_zone;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	955 ngx_http_limit_req_limit_t limit, limits;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	956
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	957 value = cf->args->elts;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	958
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	959 shm_zone = NULL;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	960 burst = 0;
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	961 delay = 0;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	962
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	963 for (i = 1; i < cf->args->nelts; i++) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	964
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	965 if (ngx_strncmp(value[i].data, "zone=", 5) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	966
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	967 s.len = value[i].len - 5;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	968 s.data = value[i].data + 5;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	969
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	970 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	971 &ngx_http_limit_req_module);
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	972 if (shm_zone == NULL) {
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	973 return NGX_CONF_ERROR;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	974 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	975
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	976 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	977 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	978
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	979 if (ngx_strncmp(value[i].data, "burst=", 6) == 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	980
2300 159136c9808d ) correct leaky bucket implementation Igor Sysoev <igor@sysoev.ru>* parents: 2294 diff changeset	981 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	982 if (burst <= 0) {
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	983 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	984 "invalid burst value \"%V\"", &value[i]);
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	985 return NGX_CONF_ERROR;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	986 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	987
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	988 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	989 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	990
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	991 if (ngx_strncmp(value[i].data, "delay=", 6) == 0) {
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	992
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	993 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	994 if (delay <= 0) {
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	995 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	996 "invalid delay value \"%V\"", &value[i]);
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	997 return NGX_CONF_ERROR;
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	998 }
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	999
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	1000 continue;
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	1001 }
d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	1002
5411 5483d9e77b32 Limit req: fixed "nodelay" parsing. Maxim Dounin <mdounin@mdounin.ru> parents: 5166 diff changeset	1003 if (ngx_strcmp(value[i].data, "nodelay") == 0) {
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	1004 delay = NGX_MAX_INT_T_VALUE / 1000;
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	1005 continue;
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	1006 }
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	1007
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	1008 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	1009 "invalid parameter \"%V\"", &value[i]);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1010 return NGX_CONF_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1011 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1012
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1013 if (shm_zone == NULL) {
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1014 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	1015 "\"%V\" must have \"zone\" parameter",
ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	1016 &cmd->name);
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1017 return NGX_CONF_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1018 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1019
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1020 limits = lrcf->limits.elts;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1021
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1022 if (limits == NULL) {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1023 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	1024 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	1025 != NGX_OK)
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1026 {
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1027 return NGX_CONF_ERROR;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1028 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1029 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1030
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1031 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	1032 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	1033 return "is duplicate";
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1034 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1035 }
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1036
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1037 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	1038 if (limit == NULL) {
21d1e3bcb356 Added three missing checks for NULL after ngx_array_push() calls. Valentin Bartenev <vbart@nginx.com> parents: 4499 diff changeset	1039 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	1040 }
4420 9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1041
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1042 limit->shm_zone = shm_zone;
9ce48f9eb85b Limit req: support for multiple "limit_req" limits. Valentin Bartenev <vbart@nginx.com> parents: 4419 diff changeset	1043 limit->burst = burst * 1000;
7399 d6ca744c727e Limit req: "delay=" parameter. Maxim Dounin <mdounin@mdounin.ru> parents: 7398 diff changeset	1044 limit->delay = delay * 1000;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1045
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1046 return NGX_CONF_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1047 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1048
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1049
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1050 static ngx_int_t
7592 776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1051 ngx_http_limit_req_add_variables(ngx_conf_t *cf)
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1052 {
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1053 ngx_http_variable_t var, v;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1054
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1055 for (v = ngx_http_limit_req_vars; v->name.len; v++) {
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1056 var = ngx_http_add_variable(cf, &v->name, v->flags);
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1057 if (var == NULL) {
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1058 return NGX_ERROR;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1059 }
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1060
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1061 var->get_handler = v->get_handler;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1062 var->data = v->data;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1063 }
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1064
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1065 return NGX_OK;
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1066 }
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1067
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1068
776d1bebdca2 Limit req: $limit_req_status variable. Roman Arutyunyan <arut@nginx.com> parents: 7515 diff changeset	1069 static ngx_int_t
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	1070 ngx_http_limit_req_init(ngx_conf_t *cf)
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1071 {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1072 ngx_http_handler_pt *h;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1073 ngx_http_core_main_conf_t *cmcf;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1074
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1075 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	1076
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1077 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	1078 if (h == NULL) {
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1079 return NGX_ERROR;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1080 }
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1081
2294 ce574b0ffeec ngx_http_limit_req_module Igor Sysoev <igor@sysoev.ru> parents: 1743 diff changeset	1082 *h = ngx_http_limit_req_handler;
980 7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1083
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1084 return NGX_OK;
7cb910b4a58a ngx_http_limit_zone_module Igor Sysoev <igor@sysoev.ru> parents: diff changeset	1085 }

Mercurial > hg > nginx

annotate src/http/modules/ngx_http_limit_req_module.c @ 7592:776d1bebdca2