0
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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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660
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4 * Copyright (C) Nginx, Inc.
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0
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_http.h>
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11
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12
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13 #define NGX_HTTP_USERID_OFF 0
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14 #define NGX_HTTP_USERID_LOG 1
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15 #define NGX_HTTP_USERID_V1 2
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16 #define NGX_HTTP_USERID_ON 3
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17
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18 /* 31 Dec 2037 23:55:55 GMT */
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19 #define NGX_HTTP_USERID_MAX_EXPIRES 2145916555
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20
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21
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22 typedef struct {
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58
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23 ngx_uint_t enable;
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0
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24
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25 ngx_int_t service;
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26
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27 ngx_str_t name;
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28 ngx_str_t domain;
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29 ngx_str_t path;
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88
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30 ngx_str_t p3p;
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31
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0
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32 time_t expires;
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88
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33
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34 u_char mark;
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0
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35 } ngx_http_userid_conf_t;
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36
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37
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38 typedef struct {
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10
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39 uint32_t uid_got[4];
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40 uint32_t uid_set[4];
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88
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41 ngx_str_t cookie;
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630
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42 ngx_uint_t reset;
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0
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43 } ngx_http_userid_ctx_t;
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44
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45
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376
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46 static ngx_http_userid_ctx_t *ngx_http_userid_get_uid(ngx_http_request_t *r,
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47 ngx_http_userid_conf_t *conf);
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48 static ngx_int_t ngx_http_userid_variable(ngx_http_request_t *r,
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49 ngx_http_variable_value_t *v, ngx_str_t *name, uint32_t *uid);
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0
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50 static ngx_int_t ngx_http_userid_set_uid(ngx_http_request_t *r,
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48
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51 ngx_http_userid_ctx_t *ctx, ngx_http_userid_conf_t *conf);
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582
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52 static ngx_int_t ngx_http_userid_create_uid(ngx_http_request_t *r,
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53 ngx_http_userid_ctx_t *ctx, ngx_http_userid_conf_t *conf);
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0
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54
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122
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55 static ngx_int_t ngx_http_userid_add_variables(ngx_conf_t *cf);
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230
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56 static ngx_int_t ngx_http_userid_init(ngx_conf_t *cf);
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0
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57 static void *ngx_http_userid_create_conf(ngx_conf_t *cf);
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58 static char *ngx_http_userid_merge_conf(ngx_conf_t *cf, void *parent,
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48
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59 void *child);
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60 static char *ngx_http_userid_domain(ngx_conf_t *cf, void *post, void *data);
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61 static char *ngx_http_userid_path(ngx_conf_t *cf, void *post, void *data);
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62 static char *ngx_http_userid_expires(ngx_conf_t *cf, ngx_command_t *cmd,
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63 void *conf);
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64 static char *ngx_http_userid_p3p(ngx_conf_t *cf, void *post, void *data);
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88
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65 static char *ngx_http_userid_mark(ngx_conf_t *cf, ngx_command_t *cmd,
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66 void *conf);
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348
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67 static ngx_int_t ngx_http_userid_init_worker(ngx_cycle_t *cycle);
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68
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0
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69
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70
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348
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71 static uint32_t start_value;
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0
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72 static uint32_t sequencer_v1 = 1;
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73 static uint32_t sequencer_v2 = 0x03030302;
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74
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75
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76 static u_char expires[] = "; expires=Thu, 31-Dec-37 23:55:55 GMT";
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77
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78
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79 static ngx_http_output_header_filter_pt ngx_http_next_header_filter;
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80
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81
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82 static ngx_conf_enum_t ngx_http_userid_state[] = {
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83 { ngx_string("off"), NGX_HTTP_USERID_OFF },
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84 { ngx_string("log"), NGX_HTTP_USERID_LOG },
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85 { ngx_string("v1"), NGX_HTTP_USERID_V1 },
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86 { ngx_string("on"), NGX_HTTP_USERID_ON },
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87 { ngx_null_string, 0 }
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88 };
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89
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90
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10
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91 static ngx_conf_post_handler_pt ngx_http_userid_domain_p =
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58
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92 ngx_http_userid_domain;
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10
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93 static ngx_conf_post_handler_pt ngx_http_userid_path_p = ngx_http_userid_path;
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94 static ngx_conf_post_handler_pt ngx_http_userid_p3p_p = ngx_http_userid_p3p;
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0
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95
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96
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97 static ngx_command_t ngx_http_userid_commands[] = {
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98
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99 { ngx_string("userid"),
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100 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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101 ngx_conf_set_enum_slot,
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102 NGX_HTTP_LOC_CONF_OFFSET,
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103 offsetof(ngx_http_userid_conf_t, enable),
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104 ngx_http_userid_state },
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105
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106 { ngx_string("userid_service"),
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88
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107 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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108 ngx_conf_set_num_slot,
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109 NGX_HTTP_LOC_CONF_OFFSET,
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110 offsetof(ngx_http_userid_conf_t, service),
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111 NULL },
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112
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113 { ngx_string("userid_name"),
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88
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114 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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115 ngx_conf_set_str_slot,
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116 NGX_HTTP_LOC_CONF_OFFSET,
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117 offsetof(ngx_http_userid_conf_t, name),
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118 NULL },
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119
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120 { ngx_string("userid_domain"),
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121 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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122 ngx_conf_set_str_slot,
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123 NGX_HTTP_LOC_CONF_OFFSET,
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124 offsetof(ngx_http_userid_conf_t, domain),
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10
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125 &ngx_http_userid_domain_p },
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0
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126
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127 { ngx_string("userid_path"),
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88
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128 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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129 ngx_conf_set_str_slot,
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130 NGX_HTTP_LOC_CONF_OFFSET,
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131 offsetof(ngx_http_userid_conf_t, path),
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10
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132 &ngx_http_userid_path_p },
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0
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133
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134 { ngx_string("userid_expires"),
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135 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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136 ngx_http_userid_expires,
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137 NGX_HTTP_LOC_CONF_OFFSET,
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138 0,
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139 NULL },
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140
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10
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141 { ngx_string("userid_p3p"),
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142 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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143 ngx_conf_set_str_slot,
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144 NGX_HTTP_LOC_CONF_OFFSET,
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145 offsetof(ngx_http_userid_conf_t, p3p),
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146 &ngx_http_userid_p3p_p },
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147
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88
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148 { ngx_string("userid_mark"),
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149 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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150 ngx_http_userid_mark,
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151 NGX_HTTP_LOC_CONF_OFFSET,
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152 0,
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153 NULL },
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154
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48
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155 ngx_null_command
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0
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156 };
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157
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158
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216
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159 static ngx_http_module_t ngx_http_userid_filter_module_ctx = {
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122
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160 ngx_http_userid_add_variables, /* preconfiguration */
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230
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161 ngx_http_userid_init, /* postconfiguration */
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0
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162
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163 NULL, /* create main configuration */
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164 NULL, /* init main configuration */
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165
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166 NULL, /* create server configuration */
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167 NULL, /* merge server configuration */
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168
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664
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169 ngx_http_userid_create_conf, /* create location configuration */
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170 ngx_http_userid_merge_conf /* merge location configuration */
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0
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171 };
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172
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173
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174 ngx_module_t ngx_http_userid_filter_module = {
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58
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175 NGX_MODULE_V1,
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176 &ngx_http_userid_filter_module_ctx, /* module context */
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177 ngx_http_userid_commands, /* module directives */
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178 NGX_HTTP_MODULE, /* module type */
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90
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179 NULL, /* init master */
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230
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180 NULL, /* init module */
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348
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181 ngx_http_userid_init_worker, /* init process */
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90
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182 NULL, /* init thread */
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183 NULL, /* exit thread */
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184 NULL, /* exit process */
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185 NULL, /* exit master */
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186 NGX_MODULE_V1_PADDING
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0
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187 };
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188
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189
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630
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190 static ngx_str_t ngx_http_userid_got = ngx_string("uid_got");
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191 static ngx_str_t ngx_http_userid_set = ngx_string("uid_set");
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192 static ngx_str_t ngx_http_userid_reset = ngx_string("uid_reset");
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193 static ngx_uint_t ngx_http_userid_reset_index;
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122
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194
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195
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48
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196 static ngx_int_t
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197 ngx_http_userid_filter(ngx_http_request_t *r)
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0
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198 {
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199 ngx_http_userid_ctx_t *ctx;
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200 ngx_http_userid_conf_t *conf;
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201
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146
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202 if (r != r->main) {
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203 return ngx_http_next_header_filter(r);
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204 }
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205
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206 conf = ngx_http_get_module_loc_conf(r, ngx_http_userid_filter_module);
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207
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208 if (conf->enable < NGX_HTTP_USERID_V1) {
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0
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209 return ngx_http_next_header_filter(r);
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210 }
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211
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376
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212 ctx = ngx_http_userid_get_uid(r, conf);
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48
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213
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214 if (ctx == NULL) {
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215 return NGX_ERROR;
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216 }
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217
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376
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218 if (ngx_http_userid_set_uid(r, ctx, conf) == NGX_OK) {
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219 return ngx_http_next_header_filter(r);
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220 }
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221
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376
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222 return NGX_ERROR;
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223 }
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224
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225
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226 static ngx_int_t
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227 ngx_http_userid_got_variable(ngx_http_request_t *r,
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228 ngx_http_variable_value_t *v, uintptr_t data)
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229 {
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230 ngx_http_userid_ctx_t *ctx;
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231 ngx_http_userid_conf_t *conf;
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232
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233 conf = ngx_http_get_module_loc_conf(r->main, ngx_http_userid_filter_module);
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234
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235 if (conf->enable == NGX_HTTP_USERID_OFF) {
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236 v->not_found = 1;
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237 return NGX_OK;
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238 }
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239
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240 ctx = ngx_http_userid_get_uid(r->main, conf);
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376
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241
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242 if (ctx == NULL) {
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243 return NGX_ERROR;
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244 }
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245
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246 if (ctx->uid_got[3] != 0) {
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247 return ngx_http_userid_variable(r->main, v, &conf->name, ctx->uid_got);
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376
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248 }
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249
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250 v->not_found = 1;
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251
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252 return NGX_OK;
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0
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253 }
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254
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255
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376
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256 static ngx_int_t
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257 ngx_http_userid_set_variable(ngx_http_request_t *r,
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258 ngx_http_variable_value_t *v, uintptr_t data)
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0
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259 {
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376
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260 ngx_http_userid_ctx_t *ctx;
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261 ngx_http_userid_conf_t *conf;
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262
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582
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263 conf = ngx_http_get_module_loc_conf(r->main, ngx_http_userid_filter_module);
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376
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264
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582
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265 if (conf->enable < NGX_HTTP_USERID_V1) {
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376
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266 v->not_found = 1;
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267 return NGX_OK;
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268 }
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269
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582
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270 ctx = ngx_http_userid_get_uid(r->main, conf);
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271
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272 if (ctx == NULL) {
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273 return NGX_ERROR;
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274 }
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376
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275
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582
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276 if (ngx_http_userid_create_uid(r->main, ctx, conf) != NGX_OK) {
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277 return NGX_ERROR;
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278 }
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279
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280 if (ctx->uid_set[3] == 0) {
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281 v->not_found = 1;
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282 return NGX_OK;
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283 }
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284
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285 return ngx_http_userid_variable(r->main, v, &conf->name, ctx->uid_set);
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376
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286 }
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287
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288
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289 static ngx_http_userid_ctx_t *
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290 ngx_http_userid_get_uid(ngx_http_request_t *r, ngx_http_userid_conf_t *conf)
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291 {
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292 ngx_int_t n;
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293 ngx_str_t src, dst;
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294 ngx_table_elt_t **cookies;
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295 ngx_http_userid_ctx_t *ctx;
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296
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297 ctx = ngx_http_get_module_ctx(r, ngx_http_userid_filter_module);
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298
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299 if (ctx) {
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300 return ctx;
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301 }
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302
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303 if (ctx == NULL) {
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304 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_userid_ctx_t));
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305 if (ctx == NULL) {
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306 return NULL;
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307 }
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308
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309 ngx_http_set_ctx(r, ctx, ngx_http_userid_filter_module);
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310 }
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0
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311
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58
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312 n = ngx_http_parse_multi_header_lines(&r->headers_in.cookies, &conf->name,
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88
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313 &ctx->cookie);
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58
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314 if (n == NGX_DECLINED) {
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376
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315 return ctx;
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58
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316 }
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10
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317
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88
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318 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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319 "uid cookie: \"%V\"", &ctx->cookie);
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320
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321 if (ctx->cookie.len < 22) {
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58
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322 cookies = r->headers_in.cookies.elts;
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323 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
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324 "client sent too short userid cookie \"%V\"",
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325 &cookies[n]->value);
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376
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326 return ctx;
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58
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327 }
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0
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328
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88
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329 src = ctx->cookie;
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330
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58
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331 /*
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88
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332 * we have to limit the encoded string to 22 characters because
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333 * 1) cookie may be marked by "userid_mark",
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334 * 2) and there are already the millions cookies with a garbage
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335 * instead of the correct base64 trail "=="
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58
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336 */
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0
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337
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58
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338 src.len = 22;
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0
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339
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58
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340 dst.data = (u_char *) ctx->uid_got;
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0
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341
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58
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342 if (ngx_decode_base64(&dst, &src) == NGX_ERROR) {
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343 cookies = r->headers_in.cookies.elts;
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344 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0,
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345 "client sent invalid userid cookie \"%V\"",
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346 &cookies[n]->value);
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376
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347 return ctx;
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58
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348 }
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0
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349
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58
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350 ngx_log_debug4(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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351 "uid: %08XD%08XD%08XD%08XD",
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352 ctx->uid_got[0], ctx->uid_got[1],
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353 ctx->uid_got[2], ctx->uid_got[3]);
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376
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354
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355 return ctx;
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0
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356 }
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357
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358
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48
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359 static ngx_int_t
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360 ngx_http_userid_set_uid(ngx_http_request_t *r, ngx_http_userid_ctx_t *ctx,
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361 ngx_http_userid_conf_t *conf)
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0
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362 {
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582
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363 u_char *cookie, *p;
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364 size_t len;
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365 ngx_str_t src, dst;
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366 ngx_table_elt_t *set_cookie, *p3p;
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0
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367
|
582
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368 if (ngx_http_userid_create_uid(r, ctx, conf) != NGX_OK) {
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369 return NGX_ERROR;
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370 }
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454
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371
|
582
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372 if (ctx->uid_set[3] == 0) {
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373 return NGX_OK;
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0
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374 }
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375
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10
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376 len = conf->name.len + 1 + ngx_base64_encoded_length(16) + conf->path.len;
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0
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377
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378 if (conf->expires) {
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379 len += sizeof(expires) - 1 + 2;
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380 }
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381
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28
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382 if (conf->domain.len) {
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10
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383 len += conf->domain.len;
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0
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384 }
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385
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382
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386 cookie = ngx_pnalloc(r->pool, len);
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48
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387 if (cookie == NULL) {
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0
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388 return NGX_ERROR;
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389 }
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390
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122
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391 p = ngx_copy(cookie, conf->name.data, conf->name.len);
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0
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392 *p++ = '=';
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393
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630
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394 if (ctx->uid_got[3] == 0 || ctx->reset) {
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88
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395 src.len = 16;
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396 src.data = (u_char *) ctx->uid_set;
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397 dst.data = p;
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398
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399 ngx_encode_base64(&dst, &src);
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400
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401 p += dst.len;
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0
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402
|
88
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403 if (conf->mark) {
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404 *(p - 2) = conf->mark;
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405 }
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0
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406
|
88
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407 } else {
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408 p = ngx_cpymem(p, ctx->cookie.data, 22);
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409 *p++ = conf->mark;
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410 *p++ = '=';
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411 }
|
0
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412
|
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413 if (conf->expires == NGX_HTTP_USERID_MAX_EXPIRES) {
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414 p = ngx_cpymem(p, expires, sizeof(expires) - 1);
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415
|
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416 } else if (conf->expires) {
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417 p = ngx_cpymem(p, expires, sizeof("; expires=") - 1);
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4
|
418 p = ngx_http_cookie_time(p, ngx_time() + conf->expires);
|
0
|
419 }
|
|
420
|
122
|
421 p = ngx_copy(p, conf->domain.data, conf->domain.len);
|
0
|
422
|
122
|
423 p = ngx_copy(p, conf->path.data, conf->path.len);
|
0
|
424
|
48
|
425 set_cookie = ngx_list_push(&r->headers_out.headers);
|
|
426 if (set_cookie == NULL) {
|
0
|
427 return NGX_ERROR;
|
|
428 }
|
|
429
|
58
|
430 set_cookie->hash = 1;
|
570
|
431 ngx_str_set(&set_cookie->key, "Set-Cookie");
|
0
|
432 set_cookie->value.len = p - cookie;
|
|
433 set_cookie->value.data = cookie;
|
|
434
|
10
|
435 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
|
|
436 "uid cookie: \"%V\"", &set_cookie->value);
|
|
437
|
28
|
438 if (conf->p3p.len == 0) {
|
10
|
439 return NGX_OK;
|
|
440 }
|
|
441
|
48
|
442 p3p = ngx_list_push(&r->headers_out.headers);
|
|
443 if (p3p == NULL) {
|
10
|
444 return NGX_ERROR;
|
|
445 }
|
|
446
|
58
|
447 p3p->hash = 1;
|
570
|
448 ngx_str_set(&p3p->key, "P3P");
|
10
|
449 p3p->value = conf->p3p;
|
|
450
|
0
|
451 return NGX_OK;
|
|
452 }
|
|
453
|
|
454
|
48
|
455 static ngx_int_t
|
582
|
456 ngx_http_userid_create_uid(ngx_http_request_t *r, ngx_http_userid_ctx_t *ctx,
|
|
457 ngx_http_userid_conf_t *conf)
|
|
458 {
|
630
|
459 ngx_connection_t *c;
|
|
460 struct sockaddr_in *sin;
|
|
461 ngx_http_variable_value_t *vv;
|
582
|
462 #if (NGX_HAVE_INET6)
|
630
|
463 u_char *p;
|
|
464 struct sockaddr_in6 *sin6;
|
582
|
465 #endif
|
|
466
|
|
467 if (ctx->uid_set[3] != 0) {
|
|
468 return NGX_OK;
|
|
469 }
|
|
470
|
|
471 if (ctx->uid_got[3] != 0) {
|
|
472
|
630
|
473 vv = ngx_http_get_indexed_variable(r, ngx_http_userid_reset_index);
|
|
474
|
|
475 if (vv->len == 0 || (vv->len == 1 && vv->data[0] == '0')) {
|
|
476
|
|
477 if (conf->mark == '\0'
|
|
478 || (ctx->cookie.len > 23
|
|
479 && ctx->cookie.data[22] == conf->mark
|
|
480 && ctx->cookie.data[23] == '='))
|
|
481 {
|
|
482 return NGX_OK;
|
|
483 }
|
|
484
|
|
485 ctx->uid_set[0] = ctx->uid_got[0];
|
|
486 ctx->uid_set[1] = ctx->uid_got[1];
|
|
487 ctx->uid_set[2] = ctx->uid_got[2];
|
|
488 ctx->uid_set[3] = ctx->uid_got[3];
|
|
489
|
582
|
490 return NGX_OK;
|
630
|
491
|
|
492 } else {
|
|
493 ctx->reset = 1;
|
|
494
|
|
495 if (vv->len == 3 && ngx_strncmp(vv->data, "log", 3) == 0) {
|
|
496 ngx_log_error(NGX_LOG_NOTICE, r->connection->log, 0,
|
|
497 "userid cookie \"%V=%08XD%08XD%08XD%08XD\" was reset",
|
|
498 &conf->name, ctx->uid_got[0], ctx->uid_got[1],
|
|
499 ctx->uid_got[2], ctx->uid_got[3]);
|
|
500 }
|
582
|
501 }
|
|
502 }
|
|
503
|
|
504 /*
|
|
505 * TODO: in the threaded mode the sequencers should be in TLS and their
|
|
506 * ranges should be divided between threads
|
|
507 */
|
|
508
|
|
509 if (conf->enable == NGX_HTTP_USERID_V1) {
|
|
510 if (conf->service == NGX_CONF_UNSET) {
|
|
511 ctx->uid_set[0] = 0;
|
|
512 } else {
|
|
513 ctx->uid_set[0] = conf->service;
|
|
514 }
|
|
515 ctx->uid_set[1] = (uint32_t) ngx_time();
|
|
516 ctx->uid_set[2] = start_value;
|
|
517 ctx->uid_set[3] = sequencer_v1;
|
|
518 sequencer_v1 += 0x100;
|
|
519
|
|
520 } else {
|
|
521 if (conf->service == NGX_CONF_UNSET) {
|
|
522
|
|
523 c = r->connection;
|
|
524
|
|
525 if (ngx_connection_local_sockaddr(c, NULL, 0) != NGX_OK) {
|
|
526 return NGX_ERROR;
|
|
527 }
|
|
528
|
|
529 switch (c->local_sockaddr->sa_family) {
|
|
530
|
|
531 #if (NGX_HAVE_INET6)
|
|
532 case AF_INET6:
|
|
533 sin6 = (struct sockaddr_in6 *) c->local_sockaddr;
|
|
534
|
|
535 p = (u_char *) &ctx->uid_set[0];
|
|
536
|
|
537 *p++ = sin6->sin6_addr.s6_addr[12];
|
|
538 *p++ = sin6->sin6_addr.s6_addr[13];
|
|
539 *p++ = sin6->sin6_addr.s6_addr[14];
|
|
540 *p = sin6->sin6_addr.s6_addr[15];
|
|
541
|
|
542 break;
|
|
543 #endif
|
|
544 default: /* AF_INET */
|
|
545 sin = (struct sockaddr_in *) c->local_sockaddr;
|
|
546 ctx->uid_set[0] = sin->sin_addr.s_addr;
|
|
547 break;
|
|
548 }
|
|
549
|
|
550 } else {
|
|
551 ctx->uid_set[0] = htonl(conf->service);
|
|
552 }
|
|
553
|
|
554 ctx->uid_set[1] = htonl((uint32_t) ngx_time());
|
|
555 ctx->uid_set[2] = htonl(start_value);
|
|
556 ctx->uid_set[3] = htonl(sequencer_v2);
|
|
557 sequencer_v2 += 0x100;
|
|
558 if (sequencer_v2 < 0x03030302) {
|
|
559 sequencer_v2 = 0x03030302;
|
|
560 }
|
|
561 }
|
|
562
|
|
563 return NGX_OK;
|
|
564 }
|
|
565
|
|
566
|
|
567 static ngx_int_t
|
376
|
568 ngx_http_userid_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
|
|
569 ngx_str_t *name, uint32_t *uid)
|
0
|
570 {
|
376
|
571 v->len = name->len + sizeof("=00001111222233334444555566667777") - 1;
|
382
|
572 v->data = ngx_pnalloc(r->pool, v->len);
|
122
|
573 if (v->data == NULL) {
|
|
574 return NGX_ERROR;
|
|
575 }
|
|
576
|
206
|
577 v->valid = 1;
|
340
|
578 v->no_cacheable = 0;
|
206
|
579 v->not_found = 0;
|
|
580
|
122
|
581 ngx_sprintf(v->data, "%V=%08XD%08XD%08XD%08XD",
|
376
|
582 name, uid[0], uid[1], uid[2], uid[3]);
|
|
583
|
|
584 return NGX_OK;
|
|
585 }
|
|
586
|
|
587
|
|
588 static ngx_int_t
|
630
|
589 ngx_http_userid_reset_variable(ngx_http_request_t *r,
|
|
590 ngx_http_variable_value_t *v, uintptr_t data)
|
|
591 {
|
|
592 *v = ngx_http_variable_null_value;
|
|
593
|
|
594 return NGX_OK;
|
|
595 }
|
|
596
|
|
597
|
|
598 static ngx_int_t
|
376
|
599 ngx_http_userid_add_variables(ngx_conf_t *cf)
|
|
600 {
|
630
|
601 ngx_int_t n;
|
376
|
602 ngx_http_variable_t *var;
|
|
603
|
572
|
604 var = ngx_http_add_variable(cf, &ngx_http_userid_got, 0);
|
376
|
605 if (var == NULL) {
|
|
606 return NGX_ERROR;
|
|
607 }
|
|
608
|
|
609 var->get_handler = ngx_http_userid_got_variable;
|
|
610
|
582
|
611 var = ngx_http_add_variable(cf, &ngx_http_userid_set, 0);
|
376
|
612 if (var == NULL) {
|
|
613 return NGX_ERROR;
|
|
614 }
|
|
615
|
|
616 var->get_handler = ngx_http_userid_set_variable;
|
122
|
617
|
630
|
618 var = ngx_http_add_variable(cf, &ngx_http_userid_reset,
|
|
619 NGX_HTTP_VAR_CHANGEABLE);
|
|
620 if (var == NULL) {
|
|
621 return NGX_ERROR;
|
|
622 }
|
|
623
|
|
624 var->get_handler = ngx_http_userid_reset_variable;
|
|
625
|
|
626 n = ngx_http_get_variable_index(cf, &ngx_http_userid_reset);
|
|
627 if (n == NGX_ERROR) {
|
|
628 return NGX_ERROR;
|
|
629 }
|
|
630
|
|
631 ngx_http_userid_reset_index = n;
|
|
632
|
122
|
633 return NGX_OK;
|
|
634 }
|
|
635
|
|
636
|
48
|
637 static void *
|
|
638 ngx_http_userid_create_conf(ngx_conf_t *cf)
|
126
|
639 {
|
0
|
640 ngx_http_userid_conf_t *conf;
|
|
641
|
48
|
642 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_userid_conf_t));
|
|
643 if (conf == NULL) {
|
496
|
644 return NULL;
|
0
|
645 }
|
|
646
|
28
|
647 /*
|
|
648 * set by ngx_pcalloc():
|
|
649 *
|
570
|
650 * conf->name = { 0, NULL };
|
|
651 * conf->domain = { 0, NULL };
|
|
652 * conf->path = { 0, NULL };
|
|
653 * conf->p3p = { 0, NULL };
|
28
|
654 */
|
0
|
655
|
58
|
656 conf->enable = NGX_CONF_UNSET_UINT;
|
0
|
657 conf->service = NGX_CONF_UNSET;
|
|
658 conf->expires = NGX_CONF_UNSET;
|
88
|
659 conf->mark = (u_char) '\xFF';
|
0
|
660
|
|
661 return conf;
|
126
|
662 }
|
0
|
663
|
|
664
|
48
|
665 static char *
|
|
666 ngx_http_userid_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
0
|
667 {
|
|
668 ngx_http_userid_conf_t *prev = parent;
|
|
669 ngx_http_userid_conf_t *conf = child;
|
|
670
|
212
|
671 ngx_conf_merge_uint_value(conf->enable, prev->enable,
|
|
672 NGX_HTTP_USERID_OFF);
|
0
|
673
|
|
674 ngx_conf_merge_str_value(conf->name, prev->name, "uid");
|
28
|
675 ngx_conf_merge_str_value(conf->domain, prev->domain, "");
|
10
|
676 ngx_conf_merge_str_value(conf->path, prev->path, "; path=/");
|
28
|
677 ngx_conf_merge_str_value(conf->p3p, prev->p3p, "");
|
0
|
678
|
|
679 ngx_conf_merge_value(conf->service, prev->service, NGX_CONF_UNSET);
|
|
680 ngx_conf_merge_sec_value(conf->expires, prev->expires, 0);
|
|
681
|
88
|
682 if (conf->mark == (u_char) '\xFF') {
|
|
683 if (prev->mark == (u_char) '\xFF') {
|
|
684 conf->mark = '\0';
|
|
685 } else {
|
|
686 conf->mark = prev->mark;
|
|
687 }
|
|
688 }
|
|
689
|
0
|
690 return NGX_CONF_OK;
|
|
691 }
|
|
692
|
|
693
|
230
|
694 static ngx_int_t
|
|
695 ngx_http_userid_init(ngx_conf_t *cf)
|
|
696 {
|
|
697 ngx_http_next_header_filter = ngx_http_top_header_filter;
|
|
698 ngx_http_top_header_filter = ngx_http_userid_filter;
|
|
699
|
|
700 return NGX_OK;
|
|
701 }
|
|
702
|
|
703
|
48
|
704 static char *
|
|
705 ngx_http_userid_domain(ngx_conf_t *cf, void *post, void *data)
|
0
|
706 {
|
|
707 ngx_str_t *domain = data;
|
|
708
|
10
|
709 u_char *p, *new;
|
|
710
|
52
|
711 if (ngx_strcmp(domain->data, "none") == 0) {
|
570
|
712 ngx_str_set(domain, "");
|
10
|
713 return NGX_CONF_OK;
|
0
|
714 }
|
|
715
|
382
|
716 new = ngx_pnalloc(cf->pool, sizeof("; domain=") - 1 + domain->len);
|
48
|
717 if (new == NULL) {
|
10
|
718 return NGX_CONF_ERROR;
|
|
719 }
|
|
720
|
|
721 p = ngx_cpymem(new, "; domain=", sizeof("; domain=") - 1);
|
50
|
722 ngx_memcpy(p, domain->data, domain->len);
|
10
|
723
|
|
724 domain->len += sizeof("; domain=") - 1;
|
|
725 domain->data = new;
|
|
726
|
|
727 return NGX_CONF_OK;
|
|
728 }
|
|
729
|
|
730
|
48
|
731 static char *
|
|
732 ngx_http_userid_path(ngx_conf_t *cf, void *post, void *data)
|
10
|
733 {
|
|
734 ngx_str_t *path = data;
|
|
735
|
|
736 u_char *p, *new;
|
|
737
|
382
|
738 new = ngx_pnalloc(cf->pool, sizeof("; path=") - 1 + path->len);
|
48
|
739 if (new == NULL) {
|
10
|
740 return NGX_CONF_ERROR;
|
|
741 }
|
|
742
|
|
743 p = ngx_cpymem(new, "; path=", sizeof("; path=") - 1);
|
50
|
744 ngx_memcpy(p, path->data, path->len);
|
10
|
745
|
|
746 path->len += sizeof("; path=") - 1;
|
|
747 path->data = new;
|
|
748
|
0
|
749 return NGX_CONF_OK;
|
|
750 }
|
|
751
|
|
752
|
48
|
753 static char *
|
|
754 ngx_http_userid_expires(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
0
|
755 {
|
|
756 ngx_http_userid_conf_t *ucf = conf;
|
|
757
|
88
|
758 ngx_str_t *value;
|
0
|
759
|
|
760 if (ucf->expires != NGX_CONF_UNSET) {
|
|
761 return "is duplicate";
|
|
762 }
|
|
763
|
|
764 value = cf->args->elts;
|
|
765
|
|
766 if (ngx_strcmp(value[1].data, "max") == 0) {
|
|
767 ucf->expires = NGX_HTTP_USERID_MAX_EXPIRES;
|
|
768 return NGX_CONF_OK;
|
|
769 }
|
|
770
|
|
771 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
772 ucf->expires = 0;
|
|
773 return NGX_CONF_OK;
|
|
774 }
|
|
775
|
|
776 ucf->expires = ngx_parse_time(&value[1], 1);
|
662
|
777 if (ucf->expires == (time_t) NGX_ERROR) {
|
0
|
778 return "invalid value";
|
|
779 }
|
|
780
|
|
781 return NGX_CONF_OK;
|
|
782 }
|
10
|
783
|
|
784
|
48
|
785 static char *
|
|
786 ngx_http_userid_p3p(ngx_conf_t *cf, void *post, void *data)
|
10
|
787 {
|
|
788 ngx_str_t *p3p = data;
|
|
789
|
52
|
790 if (ngx_strcmp(p3p->data, "none") == 0) {
|
570
|
791 ngx_str_set(p3p, "");
|
10
|
792 }
|
|
793
|
|
794 return NGX_CONF_OK;
|
|
795 }
|
88
|
796
|
|
797
|
|
798 static char *
|
|
799 ngx_http_userid_mark(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
800 {
|
|
801 ngx_http_userid_conf_t *ucf = conf;
|
|
802
|
|
803 ngx_str_t *value;
|
|
804
|
|
805 if (ucf->mark != (u_char) '\xFF') {
|
|
806 return "is duplicate";
|
|
807 }
|
|
808
|
|
809 value = cf->args->elts;
|
|
810
|
|
811 if (ngx_strcmp(value[1].data, "off") == 0) {
|
|
812 ucf->mark = '\0';
|
|
813 return NGX_CONF_OK;
|
|
814 }
|
|
815
|
|
816 if (value[1].len != 1
|
|
817 || !((value[1].data[0] >= '0' && value[1].data[0] <= '9')
|
|
818 || (value[1].data[0] >= 'A' && value[1].data[0] <= 'Z')
|
|
819 || (value[1].data[0] >= 'a' && value[1].data[0] <= 'z')
|
|
820 || value[1].data[0] == '='))
|
|
821 {
|
|
822 return "value must be \"off\" or a single letter, digit or \"=\"";
|
|
823 }
|
|
824
|
|
825 ucf->mark = value[1].data[0];
|
|
826
|
|
827 return NGX_CONF_OK;
|
|
828 }
|
348
|
829
|
|
830
|
|
831 static ngx_int_t
|
|
832 ngx_http_userid_init_worker(ngx_cycle_t *cycle)
|
|
833 {
|
|
834 struct timeval tp;
|
|
835
|
|
836 ngx_gettimeofday(&tp);
|
|
837
|
|
838 /* use the most significant usec part that fits to 16 bits */
|
|
839 start_value = ((tp.tv_usec / 20) << 16) | ngx_pid;
|
|
840
|
|
841 return NGX_OK;
|
|
842 }
|