0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #ifndef _NGX_HTTP_CORE_H_INCLUDED_
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8 #define _NGX_HTTP_CORE_H_INCLUDED_
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9
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10
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406
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11 #include <ngx_config.h>
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12 #include <ngx_core.h>
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0
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13 #include <ngx_http.h>
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14
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15
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358
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16 #define NGX_HTTP_GZIP_PROXIED_OFF 0x0002
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17 #define NGX_HTTP_GZIP_PROXIED_EXPIRED 0x0004
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18 #define NGX_HTTP_GZIP_PROXIED_NO_CACHE 0x0008
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19 #define NGX_HTTP_GZIP_PROXIED_NO_STORE 0x0010
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20 #define NGX_HTTP_GZIP_PROXIED_PRIVATE 0x0020
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21 #define NGX_HTTP_GZIP_PROXIED_NO_LM 0x0040
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22 #define NGX_HTTP_GZIP_PROXIED_NO_ETAG 0x0080
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23 #define NGX_HTTP_GZIP_PROXIED_AUTH 0x0100
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24 #define NGX_HTTP_GZIP_PROXIED_ANY 0x0200
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25
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26
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520
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27 #define NGX_HTTP_AIO_OFF 0
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28 #define NGX_HTTP_AIO_ON 1
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29 #define NGX_HTTP_AIO_SENDFILE 2
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30
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31
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362
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32 #define NGX_HTTP_SATISFY_ALL 0
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33 #define NGX_HTTP_SATISFY_ANY 1
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34
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35
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444
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36 #define NGX_HTTP_IMS_OFF 0
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37 #define NGX_HTTP_IMS_EXACT 1
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38 #define NGX_HTTP_IMS_BEFORE 2
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39
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40
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378
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41 typedef struct ngx_http_location_tree_node_s ngx_http_location_tree_node_t;
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42 typedef struct ngx_http_core_loc_conf_s ngx_http_core_loc_conf_t;
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43
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44
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0
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45 typedef struct {
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72
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46 unsigned default_server:1;
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47 unsigned bind:1;
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448
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48 unsigned wildcard:1;
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404
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49 #if (NGX_HTTP_SSL)
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50 unsigned ssl:1;
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51 #endif
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460
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52 #if (NGX_HAVE_INET6 && defined IPV6_V6ONLY)
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53 unsigned ipv6only:2;
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54 #endif
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72
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55
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56 int backlog;
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112
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57 int rcvbuf;
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58 int sndbuf;
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72
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59
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60 #if (NGX_HAVE_DEFERRED_ACCEPT && defined SO_ACCEPTFILTER)
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61 char *accept_filter;
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62 #endif
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63 #if (NGX_HAVE_DEFERRED_ACCEPT && defined TCP_DEFER_ACCEPT)
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64 ngx_uint_t deferred_accept;
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65 #endif
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66
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448
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67 u_char addr[NGX_SOCKADDR_STRLEN + 1];
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72
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68 } ngx_http_listen_conf_t;
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69
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70
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71 typedef struct {
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448
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72 u_char sockaddr[NGX_SOCKADDRLEN];
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73 socklen_t socklen;
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72
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74
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336
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75 u_char *file_name;
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76 ngx_uint_t line;
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0
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77
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72
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78 ngx_http_listen_conf_t conf;
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0
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79 } ngx_http_listen_t;
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80
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81
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82 typedef enum {
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122
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83 NGX_HTTP_POST_READ_PHASE = 0,
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0
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84
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122
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85 NGX_HTTP_SERVER_REWRITE_PHASE,
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230
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86
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122
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87 NGX_HTTP_FIND_CONFIG_PHASE,
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38
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88 NGX_HTTP_REWRITE_PHASE,
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230
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89 NGX_HTTP_POST_REWRITE_PHASE,
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0
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90
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130
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91 NGX_HTTP_PREACCESS_PHASE,
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92
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0
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93 NGX_HTTP_ACCESS_PHASE,
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230
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94 NGX_HTTP_POST_ACCESS_PHASE,
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95
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430
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96 NGX_HTTP_TRY_FILES_PHASE,
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0
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97 NGX_HTTP_CONTENT_PHASE,
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98
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130
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99 NGX_HTTP_LOG_PHASE
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0
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100 } ngx_http_phases;
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101
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230
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102 typedef struct ngx_http_phase_handler_s ngx_http_phase_handler_t;
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103
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104 typedef ngx_int_t (*ngx_http_phase_handler_pt)(ngx_http_request_t *r,
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105 ngx_http_phase_handler_t *ph);
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106
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107 struct ngx_http_phase_handler_s {
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108 ngx_http_phase_handler_pt checker;
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109 ngx_http_handler_pt handler;
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110 ngx_uint_t next;
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111 };
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112
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113
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114 typedef struct {
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115 ngx_http_phase_handler_t *handlers;
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116 ngx_uint_t server_rewrite_index;
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324
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117 ngx_uint_t location_rewrite_index;
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230
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118 } ngx_http_phase_engine_t;
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119
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0
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120
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121 typedef struct {
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26
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122 ngx_array_t handlers;
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0
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123 } ngx_http_phase_t;
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124
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125
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126 typedef struct {
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34
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127 ngx_array_t servers; /* ngx_http_core_srv_conf_t */
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26
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128
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230
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129 ngx_http_phase_engine_t phase_engine;
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0
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130
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198
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131 ngx_hash_t headers_in_hash;
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160
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132
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133 ngx_hash_t variables_hash;
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134
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135 ngx_array_t variables; /* ngx_http_variable_t */
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56
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136
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142
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137 ngx_uint_t server_names_hash_max_size;
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138 ngx_uint_t server_names_hash_bucket_size;
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34
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139
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160
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140 ngx_uint_t variables_hash_max_size;
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141 ngx_uint_t variables_hash_bucket_size;
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142
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143 ngx_hash_keys_arrays_t *variables_keys;
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230
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144
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430
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145 ngx_uint_t try_files; /* unsigned try_files:1 */
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146
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230
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147 ngx_http_phase_t phases[NGX_HTTP_LOG_PHASE + 1];
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0
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148 } ngx_http_core_main_conf_t;
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149
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150
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151 typedef struct {
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34
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152 /* array of the ngx_http_listen_t, "listen" directive */
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378
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153 ngx_array_t listen;
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0
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154
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34
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155 /* array of the ngx_http_server_name_t, "server_name" directive */
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378
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156 ngx_array_t server_names;
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0
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157
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158 /* server ctx */
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378
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159 ngx_http_conf_ctx_t *ctx;
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0
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160
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378
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161 ngx_str_t server_name;
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142
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162
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378
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163 size_t connection_pool_size;
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164 size_t request_pool_size;
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165 size_t client_header_buffer_size;
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0
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166
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378
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167 ngx_bufs_t large_client_header_buffers;
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0
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168
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378
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169 ngx_msec_t client_header_timeout;
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0
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170
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378
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171 ngx_flag_t ignore_invalid_headers;
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172 ngx_flag_t merge_slashes;
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412
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173 ngx_flag_t underscores_in_headers;
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378
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174
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175 ngx_http_core_loc_conf_t **named_locations;
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0
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176 } ngx_http_core_srv_conf_t;
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177
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178
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179 /* list of structures to find core_srv_conf quickly at run time */
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180
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142
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181
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182 typedef struct {
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183 /* the default server configuration for this address:port */
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184 ngx_http_core_srv_conf_t *core_srv_conf;
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326
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185
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478
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186 ngx_http_virtual_names_t *virtual_names;
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187
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404
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188 #if (NGX_HTTP_SSL)
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189 ngx_uint_t ssl; /* unsigned ssl:1; */
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190 #endif
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448
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191 } ngx_http_addr_conf_t;
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192
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193
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194 typedef struct {
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195 in_addr_t addr;
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196 ngx_http_addr_conf_t conf;
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142
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197 } ngx_http_in_addr_t;
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198
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199
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448
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200 #if (NGX_HAVE_INET6)
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201
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202 typedef struct {
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203 struct in6_addr addr6;
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204 ngx_http_addr_conf_t conf;
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205 } ngx_http_in6_addr_t;
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206
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207 #endif
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208
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209
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0
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210 typedef struct {
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448
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211 /* ngx_http_in_addr_t or ngx_http_in6_addr_t */
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212 void *addrs;
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142
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213 ngx_uint_t naddrs;
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448
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214 } ngx_http_port_t;
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0
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215
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216
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142
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217 typedef struct {
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448
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218 ngx_int_t family;
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142
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219 in_port_t port;
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448
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220 ngx_array_t addrs; /* array of ngx_http_conf_addr_t */
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221 } ngx_http_conf_port_t;
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142
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222
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223
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224 typedef struct {
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448
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225 struct sockaddr *sockaddr;
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226 socklen_t socklen;
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26
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227
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142
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228 ngx_hash_t hash;
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312
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229 ngx_hash_wildcard_t *wc_head;
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230 ngx_hash_wildcard_t *wc_tail;
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142
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231
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232 ngx_array_t names; /* array of ngx_http_server_name_t */
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26
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233
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326
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234 #if (NGX_PCRE)
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235 ngx_uint_t nregex;
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236 ngx_http_server_name_t *regex;
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237 #endif
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238
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26
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239 /* the default server configuration for this address:port */
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240 ngx_http_core_srv_conf_t *core_srv_conf;
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0
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241
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142
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242 unsigned default_server:1;
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243 unsigned bind:1;
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448
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244 unsigned wildcard:1;
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404
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245 #if (NGX_HTTP_SSL)
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246 unsigned ssl:1;
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247 #endif
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142
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248
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249 ngx_http_listen_conf_t *listen_conf;
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448
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250 } ngx_http_conf_addr_t;
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0
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251
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252
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326
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253 struct ngx_http_server_name_s {
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254 #if (NGX_PCRE)
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255 ngx_regex_t *regex;
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456
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256 ngx_uint_t captures; /* unsigned captures:1; */
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326
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257 #endif
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258 ngx_http_core_srv_conf_t *core_srv_conf; /* virtual name server conf */
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0
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259 ngx_str_t name;
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326
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260 };
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0
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261
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262
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263 typedef struct {
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222
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264 ngx_int_t status;
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265 ngx_int_t overwrite;
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464
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266 ngx_http_complex_value_t value;
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372
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267 ngx_str_t args;
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0
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268 } ngx_http_err_page_t;
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269
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270
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430
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271 typedef struct {
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272 ngx_array_t *lengths;
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273 ngx_array_t *values;
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274 ngx_str_t name;
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478
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275
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276 unsigned code:10;
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277 unsigned test_dir:1;
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430
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278 } ngx_http_try_file_t;
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279
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280
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0
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281 struct ngx_http_core_loc_conf_s {
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282 ngx_str_t name; /* location name */
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283
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4
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284 #if (NGX_PCRE)
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0
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285 ngx_regex_t *regex;
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456
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286
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287 unsigned captures:1;
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0
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288 #endif
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289
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324
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290 unsigned noname:1; /* "if () {}" block or limit_except */
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291 unsigned named:1;
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34
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292
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0
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293 unsigned exact_match:1;
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16
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294 unsigned noregex:1;
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295
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0
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296 unsigned auto_redirect:1;
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297 unsigned alias:1;
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400
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298 #if (NGX_HTTP_GZIP)
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299 unsigned gzip_disable_msie6:2;
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300 #endif
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0
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301
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378
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302 ngx_http_location_tree_node_t *static_locations;
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456
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303 #if (NGX_PCRE)
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378
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304 ngx_http_core_loc_conf_t **regex_locations;
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456
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305 #endif
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0
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306
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307 /* pointer to the modules' loc_conf */
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378
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308 void **loc_conf;
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0
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309
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180
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310 uint32_t limit_except;
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378
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311 void **limit_except_loc_conf;
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180
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312
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0
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313 ngx_http_handler_pt handler;
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314
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126
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315 ngx_str_t root; /* root, alias */
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316 ngx_str_t post_action;
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317
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144
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318 ngx_array_t *root_lengths;
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319 ngx_array_t *root_values;
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320
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138
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321 ngx_array_t *types;
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322 ngx_hash_t types_hash;
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323 ngx_str_t default_type;
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324
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212
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325 off_t client_max_body_size; /* client_max_body_size */
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390
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326 off_t directio; /* directio */
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518
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327 off_t directio_alignment; /* directio_alignment */
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212
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328
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0
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329 size_t client_body_buffer_size; /* client_body_buffer_size */
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330 size_t send_lowat; /* send_lowat */
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331 size_t postpone_output; /* postpone_output */
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332 size_t limit_rate; /* limit_rate */
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496
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333 size_t limit_rate_after; /* limit_rate_after */
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300
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334 size_t sendfile_max_chunk; /* sendfile_max_chunk */
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532
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335 size_t read_ahead; /* read_ahead */
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0
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336
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337 ngx_msec_t client_body_timeout; /* client_body_timeout */
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338 ngx_msec_t send_timeout; /* send_timeout */
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339 ngx_msec_t keepalive_timeout; /* keepalive_timeout */
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340 ngx_msec_t lingering_time; /* lingering_time */
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341 ngx_msec_t lingering_timeout; /* lingering_timeout */
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348
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342 ngx_msec_t resolver_timeout; /* resolver_timeout */
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343
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344 ngx_resolver_t *resolver; /* resolver */
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0
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345
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346 time_t keepalive_header; /* keepalive_timeout */
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347
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496
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348 ngx_uint_t keepalive_requests; /* keepalive_requests */
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362
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349 ngx_uint_t satisfy; /* satisfy */
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424
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350 ngx_uint_t if_modified_since; /* if_modified_since */
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492
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351 ngx_uint_t client_body_in_file_only; /* client_body_in_file_only */
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362
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352
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492
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353 ngx_flag_t client_body_in_single_buffer;
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354 /* client_body_in_singe_buffer */
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58
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355 ngx_flag_t internal; /* internal */
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0
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356 ngx_flag_t sendfile; /* sendfile */
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518
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357 #if (NGX_HAVE_FILE_AIO)
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358 ngx_flag_t aio; /* aio */
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359 #endif
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0
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360 ngx_flag_t tcp_nopush; /* tcp_nopush */
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2
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361 ngx_flag_t tcp_nodelay; /* tcp_nodelay */
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0
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362 ngx_flag_t reset_timedout_connection; /* reset_timedout_connection */
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362
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363 ngx_flag_t server_name_in_redirect; /* server_name_in_redirect */
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70
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364 ngx_flag_t port_in_redirect; /* port_in_redirect */
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0
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365 ngx_flag_t msie_padding; /* msie_padding */
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228
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366 ngx_flag_t msie_refresh; /* msie_refresh */
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76
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367 ngx_flag_t log_not_found; /* log_not_found */
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412
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368 ngx_flag_t log_subrequest; /* log_subrequest */
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228
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369 ngx_flag_t recursive_error_pages; /* recursive_error_pages */
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342
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370 ngx_flag_t server_tokens; /* server_tokens */
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0
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371
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358
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372 #if (NGX_HTTP_GZIP)
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373 ngx_flag_t gzip_vary; /* gzip_vary */
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374
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375 ngx_uint_t gzip_http_version; /* gzip_http_version */
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376 ngx_uint_t gzip_proxied; /* gzip_proxied */
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377
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378 #if (NGX_PCRE)
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379 ngx_array_t *gzip_disable; /* gzip_disable */
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380 #endif
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381 #endif
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382
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0
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383 ngx_array_t *error_pages; /* error_page */
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430
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384 ngx_http_try_file_t *try_files; /* try_files */
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0
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385
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28
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386 ngx_path_t *client_body_temp_path; /* client_body_temp_path */
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387
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332
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388 ngx_open_file_cache_t *open_file_cache;
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358
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389 time_t open_file_cache_valid;
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390 ngx_uint_t open_file_cache_min_uses;
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332
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391 ngx_flag_t open_file_cache_errors;
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392 ngx_flag_t open_file_cache_events;
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0
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393
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484
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394 ngx_log_t *error_log;
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0
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395
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138
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396 ngx_uint_t types_hash_max_size;
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397 ngx_uint_t types_hash_bucket_size;
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398
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378
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399 ngx_queue_t *locations;
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400
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34
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401 #if 0
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0
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402 ngx_http_core_loc_conf_t *prev_location;
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34
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403 #endif
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0
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404 };
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405
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406
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378
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407 typedef struct {
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408 ngx_queue_t queue;
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409 ngx_http_core_loc_conf_t *exact;
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410 ngx_http_core_loc_conf_t *inclusive;
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411 ngx_str_t *name;
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412 u_char *file_name;
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413 ngx_uint_t line;
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414 ngx_queue_t list;
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415 } ngx_http_location_queue_t;
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416
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417
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418 struct ngx_http_location_tree_node_s {
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419 ngx_http_location_tree_node_t *left;
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420 ngx_http_location_tree_node_t *right;
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421 ngx_http_location_tree_node_t *tree;
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422
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423 ngx_http_core_loc_conf_t *exact;
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424 ngx_http_core_loc_conf_t *inclusive;
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425
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426 u_char auto_redirect;
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427 u_char len;
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428 u_char name[1];
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429 };
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430
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431
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230
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432 void ngx_http_core_run_phases(ngx_http_request_t *r);
|
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433 ngx_int_t ngx_http_core_generic_phase(ngx_http_request_t *r,
|
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434 ngx_http_phase_handler_t *ph);
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435 ngx_int_t ngx_http_core_find_config_phase(ngx_http_request_t *r,
|
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436 ngx_http_phase_handler_t *ph);
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437 ngx_int_t ngx_http_core_post_rewrite_phase(ngx_http_request_t *r,
|
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438 ngx_http_phase_handler_t *ph);
|
|
439 ngx_int_t ngx_http_core_access_phase(ngx_http_request_t *r,
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440 ngx_http_phase_handler_t *ph);
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|
441 ngx_int_t ngx_http_core_post_access_phase(ngx_http_request_t *r,
|
|
442 ngx_http_phase_handler_t *ph);
|
430
|
443 ngx_int_t ngx_http_core_try_files_phase(ngx_http_request_t *r,
|
|
444 ngx_http_phase_handler_t *ph);
|
230
|
445 ngx_int_t ngx_http_core_content_phase(ngx_http_request_t *r,
|
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446 ngx_http_phase_handler_t *ph);
|
0
|
447
|
392
|
448
|
|
449 void *ngx_http_test_content_type(ngx_http_request_t *r, ngx_hash_t *types_hash);
|
0
|
450 ngx_int_t ngx_http_set_content_type(ngx_http_request_t *r);
|
508
|
451 void ngx_http_set_exten(ngx_http_request_t *r);
|
106
|
452 u_char *ngx_http_map_uri_to_path(ngx_http_request_t *r, ngx_str_t *name,
|
248
|
453 size_t *root_length, size_t reserved);
|
88
|
454 ngx_int_t ngx_http_auth_basic_user(ngx_http_request_t *r);
|
358
|
455 #if (NGX_HTTP_GZIP)
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|
456 ngx_int_t ngx_http_gzip_ok(ngx_http_request_t *r);
|
|
457 #endif
|
|
458
|
0
|
459
|
58
|
460 ngx_int_t ngx_http_subrequest(ngx_http_request_t *r,
|
244
|
461 ngx_str_t *uri, ngx_str_t *args, ngx_http_request_t **sr,
|
248
|
462 ngx_http_post_subrequest_t *psr, ngx_uint_t flags);
|
0
|
463 ngx_int_t ngx_http_internal_redirect(ngx_http_request_t *r,
|
48
|
464 ngx_str_t *uri, ngx_str_t *args);
|
324
|
465 ngx_int_t ngx_http_named_location(ngx_http_request_t *r, ngx_str_t *name);
|
|
466
|
34
|
467
|
118
|
468 ngx_http_cleanup_t *ngx_http_cleanup_add(ngx_http_request_t *r, size_t size);
|
|
469
|
0
|
470
|
|
471 typedef ngx_int_t (*ngx_http_output_header_filter_pt)(ngx_http_request_t *r);
|
|
472 typedef ngx_int_t (*ngx_http_output_body_filter_pt)
|
48
|
473 (ngx_http_request_t *r, ngx_chain_t *chain);
|
0
|
474
|
|
475
|
|
476 ngx_int_t ngx_http_output_filter(ngx_http_request_t *r, ngx_chain_t *chain);
|
|
477 ngx_int_t ngx_http_write_filter(ngx_http_request_t *r, ngx_chain_t *chain);
|
|
478
|
|
479
|
126
|
480 extern ngx_module_t ngx_http_core_module;
|
|
481
|
|
482 extern ngx_uint_t ngx_http_max_module;
|
|
483
|
480
|
484 extern ngx_str_t ngx_http_core_get_method;
|
|
485
|
126
|
486
|
|
487 #define ngx_http_clear_content_length(r) \
|
|
488 \
|
|
489 r->headers_out.content_length_n = -1; \
|
|
490 if (r->headers_out.content_length) { \
|
|
491 r->headers_out.content_length->hash = 0; \
|
|
492 r->headers_out.content_length = NULL; \
|
|
493 }
|
|
494 \
|
|
495 #define ngx_http_clear_accept_ranges(r) \
|
|
496 \
|
130
|
497 r->allow_ranges = 0; \
|
126
|
498 if (r->headers_out.accept_ranges) { \
|
378
|
499 r->headers_out.accept_ranges->hash = 0; \
|
126
|
500 r->headers_out.accept_ranges = NULL; \
|
|
501 }
|
|
502
|
|
503 #define ngx_http_clear_last_modified(r) \
|
|
504 \
|
|
505 r->headers_out.last_modified_time = -1; \
|
|
506 if (r->headers_out.last_modified) { \
|
|
507 r->headers_out.last_modified->hash = 0; \
|
|
508 r->headers_out.last_modified = NULL; \
|
|
509 }
|
|
510
|
|
511
|
0
|
512 #endif /* _NGX_HTTP_CORE_H_INCLUDED_ */
|