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