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