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