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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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660
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4 * Copyright (C) Nginx, Inc.
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50
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5 */
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6
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7
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8 #include <ngx_config.h>
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9 #include <ngx_core.h>
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10 #include <ngx_http.h>
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11
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12
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13 typedef struct {
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126
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14 ngx_array_t *codes; /* uintptr_t */
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50
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15
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126
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16 ngx_uint_t stack_size;
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50
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17
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126
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18 ngx_flag_t log;
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184
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19 ngx_flag_t uninitialized_variable_warn;
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50
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20 } ngx_http_rewrite_loc_conf_t;
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21
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22
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23 static void *ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf);
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24 static char *ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf,
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25 void *parent, void *child);
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230
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26 static ngx_int_t ngx_http_rewrite_init(ngx_conf_t *cf);
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50
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27 static char *ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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28 static char *ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd,
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29 void *conf);
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76
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30 static char *ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd,
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31 void *conf);
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50
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32 static char *ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd,
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33 void *conf);
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34 static char * ngx_http_rewrite_if_condition(ngx_conf_t *cf,
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35 ngx_http_rewrite_loc_conf_t *lcf);
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36 static char *ngx_http_rewrite_variable(ngx_conf_t *cf,
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37 ngx_http_rewrite_loc_conf_t *lcf, ngx_str_t *value);
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58
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38 static char *ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd,
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50
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39 void *conf);
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126
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40 static char * ngx_http_rewrite_value(ngx_conf_t *cf,
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41 ngx_http_rewrite_loc_conf_t *lcf, ngx_str_t *value);
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50
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42
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43
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44 static ngx_command_t ngx_http_rewrite_commands[] = {
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45
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46 { ngx_string("rewrite"),
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47 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
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48 |NGX_CONF_TAKE23,
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49 ngx_http_rewrite,
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50 NGX_HTTP_LOC_CONF_OFFSET,
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51 0,
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52 NULL },
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53
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54 { ngx_string("return"),
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55 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
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56 |NGX_CONF_TAKE12,
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57 ngx_http_rewrite_return,
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58 NGX_HTTP_LOC_CONF_OFFSET,
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59 0,
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60 NULL },
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61
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76
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62 { ngx_string("break"),
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63 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
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64 |NGX_CONF_NOARGS,
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65 ngx_http_rewrite_break,
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66 NGX_HTTP_LOC_CONF_OFFSET,
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67 0,
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68 NULL },
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69
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70 { ngx_string("if"),
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71 NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_BLOCK|NGX_CONF_1MORE,
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72 ngx_http_rewrite_if,
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73 NGX_HTTP_LOC_CONF_OFFSET,
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74 0,
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75 NULL },
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76
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77 { ngx_string("set"),
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78 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF
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79 |NGX_CONF_TAKE2,
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80 ngx_http_rewrite_set,
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81 NGX_HTTP_LOC_CONF_OFFSET,
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82 0,
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83 NULL },
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84
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85 { ngx_string("rewrite_log"),
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184
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86 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF
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87 |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG,
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88 ngx_conf_set_flag_slot,
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89 NGX_HTTP_LOC_CONF_OFFSET,
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90 offsetof(ngx_http_rewrite_loc_conf_t, log),
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91 NULL },
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92
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184
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93 { ngx_string("uninitialized_variable_warn"),
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94 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF
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95 |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG,
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96 ngx_conf_set_flag_slot,
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97 NGX_HTTP_LOC_CONF_OFFSET,
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98 offsetof(ngx_http_rewrite_loc_conf_t, uninitialized_variable_warn),
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99 NULL },
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100
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101 ngx_null_command
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102 };
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103
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104
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216
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105 static ngx_http_module_t ngx_http_rewrite_module_ctx = {
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106 NULL, /* preconfiguration */
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230
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107 ngx_http_rewrite_init, /* postconfiguration */
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108
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109 NULL, /* create main configuration */
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110 NULL, /* init main configuration */
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111
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112 NULL, /* create server configuration */
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113 NULL, /* merge server configuration */
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114
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115 ngx_http_rewrite_create_loc_conf, /* create location configration */
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116 ngx_http_rewrite_merge_loc_conf /* merge location configration */
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117 };
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118
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119
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120 ngx_module_t ngx_http_rewrite_module = {
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121 NGX_MODULE_V1,
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126
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122 &ngx_http_rewrite_module_ctx, /* module context */
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123 ngx_http_rewrite_commands, /* module directives */
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124 NGX_HTTP_MODULE, /* module type */
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125 NULL, /* init master */
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230
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126 NULL, /* init module */
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90
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127 NULL, /* init process */
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128 NULL, /* init thread */
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129 NULL, /* exit thread */
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130 NULL, /* exit process */
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131 NULL, /* exit master */
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132 NGX_MODULE_V1_PADDING
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133 };
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134
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135
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136 static ngx_int_t
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137 ngx_http_rewrite_handler(ngx_http_request_t *r)
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138 {
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644
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139 ngx_int_t index;
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140 ngx_http_script_code_pt code;
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141 ngx_http_script_engine_t *e;
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644
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142 ngx_http_core_srv_conf_t *cscf;
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143 ngx_http_core_main_conf_t *cmcf;
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184
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144 ngx_http_rewrite_loc_conf_t *rlcf;
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145
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644
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146 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
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147 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module);
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148 index = cmcf->phase_engine.location_rewrite_index;
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149
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150 if (r->phase_handler == index && r->loc_conf == cscf->ctx->loc_conf) {
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151 /* skipping location rewrite phase for server null location */
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152 return NGX_DECLINED;
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153 }
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154
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184
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155 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module);
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156
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184
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157 if (rlcf->codes == NULL) {
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158 return NGX_DECLINED;
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159 }
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160
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161 e = ngx_pcalloc(r->pool, sizeof(ngx_http_script_engine_t));
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162 if (e == NULL) {
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163 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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164 }
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165
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166 e->sp = ngx_pcalloc(r->pool,
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184
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167 rlcf->stack_size * sizeof(ngx_http_variable_value_t));
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168 if (e->sp == NULL) {
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169 return NGX_HTTP_INTERNAL_SERVER_ERROR;
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170 }
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171
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184
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172 e->ip = rlcf->codes->elts;
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173 e->request = r;
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174 e->quote = 1;
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184
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175 e->log = rlcf->log;
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176 e->status = NGX_DECLINED;
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177
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178 while (*(uintptr_t *) e->ip) {
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179 code = *(ngx_http_script_code_pt *) e->ip;
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180 code(e);
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181 }
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182
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642
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183 if (e->status < NGX_HTTP_BAD_REQUEST) {
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184 return e->status;
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242
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185 }
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186
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238
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187 if (r->err_status == 0) {
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188 return e->status;
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189 }
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190
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191 return r->err_status;
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192 }
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193
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194
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122
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195 static ngx_int_t
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196 ngx_http_rewrite_var(ngx_http_request_t *r, ngx_http_variable_value_t *v,
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197 uintptr_t data)
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198 {
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184
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199 ngx_http_variable_t *var;
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200 ngx_http_core_main_conf_t *cmcf;
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201 ngx_http_rewrite_loc_conf_t *rlcf;
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202
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203 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module);
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204
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205 if (rlcf->uninitialized_variable_warn == 0) {
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206 *v = ngx_http_variable_null_value;
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207 return NGX_OK;
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208 }
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209
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210 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module);
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211
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212 var = cmcf->variables.elts;
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213
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214 /*
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215 * the ngx_http_rewrite_module sets variables directly in r->variables,
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216 * and they should be handled by ngx_http_get_indexed_variable(),
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217 * so the handler is called only if the variable is not initialized
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218 */
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219
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220 ngx_log_error(NGX_LOG_WARN, r->connection->log, 0,
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221 "using uninitialized \"%V\" variable", &var[data].name);
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222
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223 *v = ngx_http_variable_null_value;
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122
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224
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225 return NGX_OK;
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226 }
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227
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228
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229 static void *
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230 ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf)
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231 {
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232 ngx_http_rewrite_loc_conf_t *conf;
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233
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234 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_rewrite_loc_conf_t));
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235 if (conf == NULL) {
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496
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236 return NULL;
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237 }
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238
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239 conf->stack_size = NGX_CONF_UNSET_UINT;
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240 conf->log = NGX_CONF_UNSET;
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184
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241 conf->uninitialized_variable_warn = NGX_CONF_UNSET;
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242
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243 return conf;
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244 }
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245
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246
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247 static char *
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248 ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
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249 {
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250 ngx_http_rewrite_loc_conf_t *prev = parent;
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251 ngx_http_rewrite_loc_conf_t *conf = child;
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252
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253 uintptr_t *code;
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254
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255 ngx_conf_merge_value(conf->log, prev->log, 0);
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184
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256 ngx_conf_merge_value(conf->uninitialized_variable_warn,
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257 prev->uninitialized_variable_warn, 1);
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212
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258 ngx_conf_merge_uint_value(conf->stack_size, prev->stack_size, 10);
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259
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260 if (conf->codes == NULL) {
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261 return NGX_CONF_OK;
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262 }
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263
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264 if (conf->codes == prev->codes) {
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265 return NGX_CONF_OK;
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266 }
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267
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268 code = ngx_array_push_n(conf->codes, sizeof(uintptr_t));
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269 if (code == NULL) {
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270 return NGX_CONF_ERROR;
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271 }
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272
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273 *code = (uintptr_t) NULL;
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274
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275 return NGX_CONF_OK;
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276 }
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277
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278
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279 static ngx_int_t
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230
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280 ngx_http_rewrite_init(ngx_conf_t *cf)
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126
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281 {
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282 ngx_http_handler_pt *h;
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283 ngx_http_core_main_conf_t *cmcf;
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284
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230
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285 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module);
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58
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286
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122
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287 h = ngx_array_push(&cmcf->phases[NGX_HTTP_SERVER_REWRITE_PHASE].handlers);
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288 if (h == NULL) {
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289 return NGX_ERROR;
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290 }
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291
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292 *h = ngx_http_rewrite_handler;
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293
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294 h = ngx_array_push(&cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers);
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295 if (h == NULL) {
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296 return NGX_ERROR;
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297 }
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298
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299 *h = ngx_http_rewrite_handler;
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300
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301 return NGX_OK;
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126
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302 }
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58
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303
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304
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50
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305 static char *
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306 ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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307 {
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126
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308 ngx_http_rewrite_loc_conf_t *lcf = conf;
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309
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546
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310 ngx_str_t *value;
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58
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311 ngx_uint_t last;
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546
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312 ngx_regex_compile_t rc;
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58
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313 ngx_http_script_code_pt *code;
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314 ngx_http_script_compile_t sc;
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315 ngx_http_script_regex_code_t *regex;
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316 ngx_http_script_regex_end_code_t *regex_end;
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317 u_char errstr[NGX_MAX_CONF_ERRSTR];
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318
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58
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319 regex = ngx_http_script_start_code(cf->pool, &lcf->codes,
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320 sizeof(ngx_http_script_regex_code_t));
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50
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321 if (regex == NULL) {
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322 return NGX_CONF_ERROR;
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323 }
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324
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58
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325 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t));
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326
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327 value = cf->args->elts;
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328
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546
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329 ngx_memzero(&rc, sizeof(ngx_regex_compile_t));
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330
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331 rc.pattern = value[1];
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332 rc.err.len = NGX_MAX_CONF_ERRSTR;
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333 rc.err.data = errstr;
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50
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334
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335 /* TODO: NGX_REGEX_CASELESS */
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336
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546
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337 regex->regex = ngx_http_regex_compile(cf, &rc);
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50
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338 if (regex->regex == NULL) {
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339 return NGX_CONF_ERROR;
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340 }
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341
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58
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342 regex->code = ngx_http_script_regex_start_code;
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50
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343 regex->uri = 1;
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344 regex->name = value[1];
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345
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58
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346 if (value[2].data[value[2].len - 1] == '?') {
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347
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348 /* the last "?" drops the original arguments */
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349 value[2].len--;
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350
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351 } else {
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352 regex->add_args = 1;
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353 }
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354
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50
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355 last = 0;
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356
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572
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357 if (ngx_strncmp(value[2].data, "http://", sizeof("http://") - 1) == 0
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358 || ngx_strncmp(value[2].data, "https://", sizeof("https://") - 1) == 0
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359 || ngx_strncmp(value[2].data, "$scheme", sizeof("$scheme") - 1) == 0)
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360 {
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382
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361 regex->status = NGX_HTTP_MOVED_TEMPORARILY;
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362 regex->redirect = 1;
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363 last = 1;
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364 }
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365
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50
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366 if (cf->args->nelts == 4) {
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367 if (ngx_strcmp(value[3].data, "last") == 0) {
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368 last = 1;
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369
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370 } else if (ngx_strcmp(value[3].data, "break") == 0) {
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371 regex->break_cycle = 1;
|
|
|
372 last = 1;
|
|
|
373
|
|
|
374 } else if (ngx_strcmp(value[3].data, "redirect") == 0) {
|
|
|
375 regex->status = NGX_HTTP_MOVED_TEMPORARILY;
|
|
|
376 regex->redirect = 1;
|
|
|
377 last = 1;
|
|
|
378
|
|
|
379 } else if (ngx_strcmp(value[3].data, "permanent") == 0) {
|
|
|
380 regex->status = NGX_HTTP_MOVED_PERMANENTLY;
|
|
|
381 regex->redirect = 1;
|
|
|
382 last = 1;
|
|
|
383
|
|
|
384 } else {
|
|
|
385 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
386 "invalid parameter \"%V\"", &value[3]);
|
|
|
387 return NGX_CONF_ERROR;
|
|
|
388 }
|
|
|
389 }
|
|
|
390
|
|
58
|
391 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
50
|
392
|
|
58
|
393 sc.cf = cf;
|
|
|
394 sc.source = &value[2];
|
|
|
395 sc.lengths = ®ex->lengths;
|
|
|
396 sc.values = &lcf->codes;
|
|
|
397 sc.variables = ngx_http_script_variables_count(&value[2]);
|
|
|
398 sc.main = regex;
|
|
|
399 sc.complete_lengths = 1;
|
|
|
400 sc.compile_args = !regex->redirect;
|
|
50
|
401
|
|
58
|
402 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
|
403 return NGX_CONF_ERROR;
|
|
|
404 }
|
|
50
|
405
|
|
58
|
406 regex = sc.main;
|
|
50
|
407
|
|
58
|
408 regex->size = sc.size;
|
|
|
409 regex->args = sc.args;
|
|
50
|
410
|
|
190
|
411 if (sc.variables == 0 && !sc.dup_capture) {
|
|
58
|
412 regex->lengths = NULL;
|
|
50
|
413 }
|
|
|
414
|
|
58
|
415 regex_end = ngx_http_script_add_code(lcf->codes,
|
|
|
416 sizeof(ngx_http_script_regex_end_code_t),
|
|
|
417 ®ex);
|
|
50
|
418 if (regex_end == NULL) {
|
|
|
419 return NGX_CONF_ERROR;
|
|
|
420 }
|
|
|
421
|
|
58
|
422 regex_end->code = ngx_http_script_regex_end_code;
|
|
50
|
423 regex_end->uri = regex->uri;
|
|
|
424 regex_end->args = regex->args;
|
|
58
|
425 regex_end->add_args = regex->add_args;
|
|
50
|
426 regex_end->redirect = regex->redirect;
|
|
|
427
|
|
|
428 if (last) {
|
|
66
|
429 code = ngx_http_script_add_code(lcf->codes, sizeof(uintptr_t), ®ex);
|
|
50
|
430 if (code == NULL) {
|
|
|
431 return NGX_CONF_ERROR;
|
|
|
432 }
|
|
|
433
|
|
532
|
434 *code = NULL;
|
|
50
|
435 }
|
|
|
436
|
|
|
437 regex->next = (u_char *) lcf->codes->elts + lcf->codes->nelts
|
|
|
438 - (u_char *) regex;
|
|
|
439
|
|
|
440 return NGX_CONF_OK;
|
|
|
441 }
|
|
|
442
|
|
|
443
|
|
|
444 static char *
|
|
|
445 ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
446 {
|
|
126
|
447 ngx_http_rewrite_loc_conf_t *lcf = conf;
|
|
50
|
448
|
|
580
|
449 u_char *p;
|
|
|
450 ngx_str_t *value, *v;
|
|
|
451 ngx_http_script_return_code_t *ret;
|
|
|
452 ngx_http_compile_complex_value_t ccv;
|
|
50
|
453
|
|
58
|
454 ret = ngx_http_script_start_code(cf->pool, &lcf->codes,
|
|
|
455 sizeof(ngx_http_script_return_code_t));
|
|
50
|
456 if (ret == NULL) {
|
|
|
457 return NGX_CONF_ERROR;
|
|
|
458 }
|
|
|
459
|
|
|
460 value = cf->args->elts;
|
|
|
461
|
|
580
|
462 ngx_memzero(ret, sizeof(ngx_http_script_return_code_t));
|
|
|
463
|
|
58
|
464 ret->code = ngx_http_script_return_code;
|
|
50
|
465
|
|
580
|
466 p = value[1].data;
|
|
|
467
|
|
|
468 ret->status = ngx_atoi(p, value[1].len);
|
|
50
|
469
|
|
|
470 if (ret->status == (uintptr_t) NGX_ERROR) {
|
|
580
|
471
|
|
|
472 if (cf->args->nelts == 2
|
|
|
473 && (ngx_strncmp(p, "http://", sizeof("http://") - 1) == 0
|
|
|
474 || ngx_strncmp(p, "https://", sizeof("https://") - 1) == 0
|
|
|
475 || ngx_strncmp(p, "$scheme", sizeof("$scheme") - 1) == 0))
|
|
|
476 {
|
|
|
477 ret->status = NGX_HTTP_MOVED_TEMPORARILY;
|
|
|
478 v = &value[1];
|
|
|
479
|
|
|
480 } else {
|
|
|
481 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
482 "invalid return code \"%V\"", &value[1]);
|
|
|
483 return NGX_CONF_ERROR;
|
|
|
484 }
|
|
|
485
|
|
|
486 } else {
|
|
|
487
|
|
|
488 if (cf->args->nelts == 2) {
|
|
|
489 return NGX_CONF_OK;
|
|
|
490 }
|
|
|
491
|
|
|
492 v = &value[2];
|
|
|
493 }
|
|
|
494
|
|
|
495 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t));
|
|
|
496
|
|
|
497 ccv.cf = cf;
|
|
|
498 ccv.value = v;
|
|
|
499 ccv.complex_value = &ret->text;
|
|
|
500
|
|
|
501 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) {
|
|
50
|
502 return NGX_CONF_ERROR;
|
|
|
503 }
|
|
|
504
|
|
|
505 return NGX_CONF_OK;
|
|
|
506 }
|
|
|
507
|
|
|
508
|
|
|
509 static char *
|
|
76
|
510 ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
511 {
|
|
|
512 ngx_http_rewrite_loc_conf_t *lcf = conf;
|
|
|
513
|
|
|
514 ngx_http_script_code_pt *code;
|
|
|
515
|
|
|
516 code = ngx_http_script_start_code(cf->pool, &lcf->codes, sizeof(uintptr_t));
|
|
|
517 if (code == NULL) {
|
|
|
518 return NGX_CONF_ERROR;
|
|
|
519 }
|
|
|
520
|
|
|
521 *code = ngx_http_script_break_code;
|
|
|
522
|
|
|
523 return NGX_CONF_OK;
|
|
|
524 }
|
|
|
525
|
|
|
526
|
|
|
527 static char *
|
|
50
|
528 ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
529 {
|
|
126
|
530 ngx_http_rewrite_loc_conf_t *lcf = conf;
|
|
50
|
531
|
|
|
532 void *mconf;
|
|
|
533 char *rv;
|
|
|
534 u_char *elts;
|
|
|
535 ngx_uint_t i;
|
|
|
536 ngx_conf_t save;
|
|
|
537 ngx_http_module_t *module;
|
|
|
538 ngx_http_conf_ctx_t *ctx, *pctx;
|
|
378
|
539 ngx_http_core_loc_conf_t *clcf, *pclcf;
|
|
58
|
540 ngx_http_script_if_code_t *if_code;
|
|
50
|
541 ngx_http_rewrite_loc_conf_t *nlcf;
|
|
|
542
|
|
|
543 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t));
|
|
|
544 if (ctx == NULL) {
|
|
|
545 return NGX_CONF_ERROR;
|
|
|
546 }
|
|
|
547
|
|
|
548 pctx = cf->ctx;
|
|
|
549 ctx->main_conf = pctx->main_conf;
|
|
126
|
550 ctx->srv_conf = pctx->srv_conf;
|
|
50
|
551
|
|
|
552 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module);
|
|
|
553 if (ctx->loc_conf == NULL) {
|
|
|
554 return NGX_CONF_ERROR;
|
|
|
555 }
|
|
|
556
|
|
|
557 for (i = 0; ngx_modules[i]; i++) {
|
|
|
558 if (ngx_modules[i]->type != NGX_HTTP_MODULE) {
|
|
|
559 continue;
|
|
|
560 }
|
|
|
561
|
|
|
562 module = ngx_modules[i]->ctx;
|
|
126
|
563
|
|
50
|
564 if (module->create_loc_conf) {
|
|
|
565
|
|
|
566 mconf = module->create_loc_conf(cf);
|
|
|
567 if (mconf == NULL) {
|
|
|
568 return NGX_CONF_ERROR;
|
|
|
569 }
|
|
|
570
|
|
|
571 ctx->loc_conf[ngx_modules[i]->ctx_index] = mconf;
|
|
|
572 }
|
|
|
573 }
|
|
|
574
|
|
|
575 pclcf = pctx->loc_conf[ngx_http_core_module.ctx_index];
|
|
|
576
|
|
|
577 clcf = ctx->loc_conf[ngx_http_core_module.ctx_index];
|
|
|
578 clcf->loc_conf = ctx->loc_conf;
|
|
|
579 clcf->name = pclcf->name;
|
|
|
580 clcf->noname = 1;
|
|
|
581
|
|
378
|
582 if (ngx_http_add_location(cf, &pclcf->locations, clcf) != NGX_OK) {
|
|
50
|
583 return NGX_CONF_ERROR;
|
|
|
584 }
|
|
|
585
|
|
|
586 if (ngx_http_rewrite_if_condition(cf, lcf) != NGX_CONF_OK) {
|
|
|
587 return NGX_CONF_ERROR;
|
|
|
588 }
|
|
|
589
|
|
58
|
590 if_code = ngx_array_push_n(lcf->codes, sizeof(ngx_http_script_if_code_t));
|
|
50
|
591 if (if_code == NULL) {
|
|
510
|
592 return NGX_CONF_ERROR;
|
|
50
|
593 }
|
|
|
594
|
|
58
|
595 if_code->code = ngx_http_script_if_code;
|
|
50
|
596
|
|
|
597 elts = lcf->codes->elts;
|
|
|
598
|
|
|
599
|
|
180
|
600 /* the inner directives must be compiled to the same code array */
|
|
50
|
601
|
|
|
602 nlcf = ctx->loc_conf[ngx_http_rewrite_module.ctx_index];
|
|
|
603 nlcf->codes = lcf->codes;
|
|
|
604
|
|
|
605
|
|
|
606 save = *cf;
|
|
|
607 cf->ctx = ctx;
|
|
|
608
|
|
|
609 if (pclcf->name.len == 0) {
|
|
|
610 if_code->loc_conf = NULL;
|
|
|
611 cf->cmd_type = NGX_HTTP_SIF_CONF;
|
|
|
612
|
|
|
613 } else {
|
|
|
614 if_code->loc_conf = ctx->loc_conf;
|
|
|
615 cf->cmd_type = NGX_HTTP_LIF_CONF;
|
|
|
616 }
|
|
|
617
|
|
|
618 rv = ngx_conf_parse(cf, NULL);
|
|
|
619
|
|
|
620 *cf = save;
|
|
|
621
|
|
|
622 if (rv != NGX_CONF_OK) {
|
|
|
623 return rv;
|
|
|
624 }
|
|
|
625
|
|
|
626
|
|
|
627 if (elts != lcf->codes->elts) {
|
|
58
|
628 if_code = (ngx_http_script_if_code_t *)
|
|
50
|
629 ((u_char *) if_code + ((u_char *) lcf->codes->elts - elts));
|
|
|
630 }
|
|
|
631
|
|
|
632 if_code->next = (u_char *) lcf->codes->elts + lcf->codes->nelts
|
|
|
633 - (u_char *) if_code;
|
|
|
634
|
|
104
|
635 /* the code array belong to parent block */
|
|
|
636
|
|
|
637 nlcf->codes = NULL;
|
|
|
638
|
|
50
|
639 return NGX_CONF_OK;
|
|
|
640 }
|
|
|
641
|
|
|
642
|
|
|
643 static char *
|
|
|
644 ngx_http_rewrite_if_condition(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf)
|
|
|
645 {
|
|
180
|
646 u_char *p;
|
|
|
647 size_t len;
|
|
546
|
648 ngx_str_t *value;
|
|
|
649 ngx_uint_t cur, last;
|
|
|
650 ngx_regex_compile_t rc;
|
|
126
|
651 ngx_http_script_code_pt *code;
|
|
180
|
652 ngx_http_script_file_code_t *fop;
|
|
58
|
653 ngx_http_script_regex_code_t *regex;
|
|
|
654 u_char errstr[NGX_MAX_CONF_ERRSTR];
|
|
50
|
655
|
|
|
656 value = cf->args->elts;
|
|
|
657 last = cf->args->nelts - 1;
|
|
|
658
|
|
|
659 if (value[1].len < 1 || value[1].data[0] != '(') {
|
|
|
660 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
661 "invalid condition \"%V\"", &value[1]);
|
|
|
662 return NGX_CONF_ERROR;
|
|
|
663 }
|
|
|
664
|
|
|
665 if (value[1].len == 1) {
|
|
|
666 cur = 2;
|
|
|
667
|
|
|
668 } else {
|
|
|
669 cur = 1;
|
|
|
670 value[1].len--;
|
|
|
671 value[1].data++;
|
|
|
672 }
|
|
|
673
|
|
|
674 if (value[last].len < 1 || value[last].data[value[last].len - 1] != ')') {
|
|
|
675 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
676 "invalid condition \"%V\"", &value[last]);
|
|
|
677 return NGX_CONF_ERROR;
|
|
|
678 }
|
|
|
679
|
|
|
680 if (value[last].len == 1) {
|
|
|
681 last--;
|
|
|
682
|
|
|
683 } else {
|
|
|
684 value[last].len--;
|
|
|
685 value[last].data[value[last].len] = '\0';
|
|
|
686 }
|
|
|
687
|
|
180
|
688 len = value[cur].len;
|
|
|
689 p = value[cur].data;
|
|
|
690
|
|
|
691 if (len > 1 && p[0] == '$') {
|
|
50
|
692
|
|
|
693 if (cur != last && cur + 2 != last) {
|
|
|
694 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
180
|
695 "invalid condition \"%V\"", &value[cur]);
|
|
50
|
696 return NGX_CONF_ERROR;
|
|
|
697 }
|
|
|
698
|
|
126
|
699 if (ngx_http_rewrite_variable(cf, lcf, &value[cur]) != NGX_CONF_OK) {
|
|
50
|
700 return NGX_CONF_ERROR;
|
|
|
701 }
|
|
|
702
|
|
|
703 if (cur == last) {
|
|
|
704 return NGX_CONF_OK;
|
|
|
705 }
|
|
|
706
|
|
|
707 cur++;
|
|
|
708
|
|
180
|
709 len = value[cur].len;
|
|
|
710 p = value[cur].data;
|
|
|
711
|
|
|
712 if (len == 1 && p[0] == '=') {
|
|
126
|
713
|
|
|
714 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) {
|
|
|
715 return NGX_CONF_ERROR;
|
|
|
716 }
|
|
|
717
|
|
|
718 code = ngx_http_script_start_code(cf->pool, &lcf->codes,
|
|
|
719 sizeof(uintptr_t));
|
|
|
720 if (code == NULL) {
|
|
|
721 return NGX_CONF_ERROR;
|
|
|
722 }
|
|
|
723
|
|
|
724 *code = ngx_http_script_equal_code;
|
|
|
725
|
|
|
726 return NGX_CONF_OK;
|
|
50
|
727 }
|
|
|
728
|
|
180
|
729 if (len == 2 && p[0] == '!' && p[1] == '=') {
|
|
|
730
|
|
126
|
731 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) {
|
|
|
732 return NGX_CONF_ERROR;
|
|
|
733 }
|
|
|
734
|
|
|
735 code = ngx_http_script_start_code(cf->pool, &lcf->codes,
|
|
|
736 sizeof(uintptr_t));
|
|
|
737 if (code == NULL) {
|
|
|
738 return NGX_CONF_ERROR;
|
|
|
739 }
|
|
|
740
|
|
|
741 *code = ngx_http_script_not_equal_code;
|
|
|
742 return NGX_CONF_OK;
|
|
50
|
743 }
|
|
|
744
|
|
180
|
745 if ((len == 1 && p[0] == '~')
|
|
|
746 || (len == 2 && p[0] == '~' && p[1] == '*')
|
|
|
747 || (len == 2 && p[0] == '!' && p[1] == '~')
|
|
|
748 || (len == 3 && p[0] == '!' && p[1] == '~' && p[2] == '*'))
|
|
126
|
749 {
|
|
|
750 regex = ngx_http_script_start_code(cf->pool, &lcf->codes,
|
|
|
751 sizeof(ngx_http_script_regex_code_t));
|
|
|
752 if (regex == NULL) {
|
|
|
753 return NGX_CONF_ERROR;
|
|
|
754 }
|
|
58
|
755
|
|
126
|
756 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t));
|
|
|
757
|
|
546
|
758 ngx_memzero(&rc, sizeof(ngx_regex_compile_t));
|
|
126
|
759
|
|
546
|
760 rc.pattern = value[last];
|
|
|
761 rc.options = (p[len - 1] == '*') ? NGX_REGEX_CASELESS : 0;
|
|
|
762 rc.err.len = NGX_MAX_CONF_ERRSTR;
|
|
|
763 rc.err.data = errstr;
|
|
50
|
764
|
|
546
|
765 regex->regex = ngx_http_regex_compile(cf, &rc);
|
|
126
|
766 if (regex->regex == NULL) {
|
|
|
767 return NGX_CONF_ERROR;
|
|
|
768 }
|
|
|
769
|
|
|
770 regex->code = ngx_http_script_regex_start_code;
|
|
|
771 regex->next = sizeof(ngx_http_script_regex_code_t);
|
|
|
772 regex->test = 1;
|
|
180
|
773 if (p[0] == '!') {
|
|
|
774 regex->negative_test = 1;
|
|
|
775 }
|
|
126
|
776 regex->name = value[last];
|
|
50
|
777
|
|
126
|
778 return NGX_CONF_OK;
|
|
50
|
779 }
|
|
|
780
|
|
126
|
781 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
782 "unexpected \"%V\" in condition", &value[cur]);
|
|
|
783 return NGX_CONF_ERROR;
|
|
180
|
784
|
|
|
785 } else if ((len == 2 && p[0] == '-')
|
|
|
786 || (len == 3 && p[0] == '!' && p[1] == '-'))
|
|
|
787 {
|
|
|
788 if (cur + 1 != last) {
|
|
|
789 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
790 "invalid condition \"%V\"", &value[cur]);
|
|
|
791 return NGX_CONF_ERROR;
|
|
|
792 }
|
|
|
793
|
|
|
794 value[last].data[value[last].len] = '\0';
|
|
|
795 value[last].len++;
|
|
|
796
|
|
|
797 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) {
|
|
|
798 return NGX_CONF_ERROR;
|
|
|
799 }
|
|
|
800
|
|
|
801 fop = ngx_http_script_start_code(cf->pool, &lcf->codes,
|
|
|
802 sizeof(ngx_http_script_file_code_t));
|
|
|
803 if (fop == NULL) {
|
|
|
804 return NGX_CONF_ERROR;
|
|
|
805 }
|
|
|
806
|
|
|
807 fop->code = ngx_http_script_file_code;
|
|
|
808
|
|
|
809 if (p[1] == 'f') {
|
|
|
810 fop->op = ngx_http_script_file_plain;
|
|
|
811 return NGX_CONF_OK;
|
|
|
812 }
|
|
|
813
|
|
218
|
814 if (p[1] == 'd') {
|
|
|
815 fop->op = ngx_http_script_file_dir;
|
|
|
816 return NGX_CONF_OK;
|
|
|
817 }
|
|
|
818
|
|
|
819 if (p[1] == 'e') {
|
|
|
820 fop->op = ngx_http_script_file_exists;
|
|
|
821 return NGX_CONF_OK;
|
|
|
822 }
|
|
|
823
|
|
|
824 if (p[1] == 'x') {
|
|
|
825 fop->op = ngx_http_script_file_exec;
|
|
|
826 return NGX_CONF_OK;
|
|
|
827 }
|
|
|
828
|
|
180
|
829 if (p[0] == '!') {
|
|
|
830 if (p[2] == 'f') {
|
|
|
831 fop->op = ngx_http_script_file_not_plain;
|
|
|
832 return NGX_CONF_OK;
|
|
|
833 }
|
|
218
|
834
|
|
|
835 if (p[2] == 'd') {
|
|
|
836 fop->op = ngx_http_script_file_not_dir;
|
|
|
837 return NGX_CONF_OK;
|
|
|
838 }
|
|
|
839
|
|
|
840 if (p[2] == 'e') {
|
|
|
841 fop->op = ngx_http_script_file_not_exists;
|
|
|
842 return NGX_CONF_OK;
|
|
|
843 }
|
|
|
844
|
|
|
845 if (p[2] == 'x') {
|
|
|
846 fop->op = ngx_http_script_file_not_exec;
|
|
|
847 return NGX_CONF_OK;
|
|
|
848 }
|
|
180
|
849 }
|
|
|
850
|
|
|
851 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
852 "invalid condition \"%V\"", &value[cur]);
|
|
|
853 return NGX_CONF_ERROR;
|
|
50
|
854 }
|
|
|
855
|
|
|
856 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
857 "invalid condition \"%V\"", &value[cur]);
|
|
|
858
|
|
|
859 return NGX_CONF_ERROR;
|
|
|
860 }
|
|
|
861
|
|
|
862
|
|
|
863 static char *
|
|
|
864 ngx_http_rewrite_variable(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf,
|
|
|
865 ngx_str_t *value)
|
|
|
866 {
|
|
58
|
867 ngx_int_t index;
|
|
|
868 ngx_http_script_var_code_t *var_code;
|
|
50
|
869
|
|
|
870 value->len--;
|
|
|
871 value->data++;
|
|
|
872
|
|
126
|
873 index = ngx_http_get_variable_index(cf, value);
|
|
50
|
874
|
|
126
|
875 if (index == NGX_ERROR) {
|
|
|
876 return NGX_CONF_ERROR;
|
|
50
|
877 }
|
|
|
878
|
|
126
|
879 var_code = ngx_http_script_start_code(cf->pool, &lcf->codes,
|
|
|
880 sizeof(ngx_http_script_var_code_t));
|
|
|
881 if (var_code == NULL) {
|
|
|
882 return NGX_CONF_ERROR;
|
|
50
|
883 }
|
|
|
884
|
|
126
|
885 var_code->code = ngx_http_script_var_code;
|
|
|
886 var_code->index = index;
|
|
50
|
887
|
|
|
888 return NGX_CONF_OK;
|
|
|
889 }
|
|
|
890
|
|
|
891
|
|
|
892 static char *
|
|
|
893 ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
894 {
|
|
126
|
895 ngx_http_rewrite_loc_conf_t *lcf = conf;
|
|
50
|
896
|
|
186
|
897 ngx_int_t index;
|
|
|
898 ngx_str_t *value;
|
|
|
899 ngx_http_variable_t *v;
|
|
|
900 ngx_http_script_var_code_t *vcode;
|
|
|
901 ngx_http_script_var_handler_code_t *vhcode;
|
|
50
|
902
|
|
|
903 value = cf->args->elts;
|
|
|
904
|
|
|
905 if (value[1].data[0] != '$') {
|
|
|
906 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
907 "invalid variable name \"%V\"", &value[1]);
|
|
|
908 return NGX_CONF_ERROR;
|
|
|
909 }
|
|
|
910
|
|
|
911 value[1].len--;
|
|
|
912 value[1].data++;
|
|
|
913
|
|
340
|
914 v = ngx_http_add_variable(cf, &value[1], NGX_HTTP_VAR_CHANGEABLE);
|
|
50
|
915 if (v == NULL) {
|
|
|
916 return NGX_CONF_ERROR;
|
|
|
917 }
|
|
|
918
|
|
58
|
919 index = ngx_http_get_variable_index(cf, &value[1]);
|
|
|
920 if (index == NGX_ERROR) {
|
|
|
921 return NGX_CONF_ERROR;
|
|
|
922 }
|
|
50
|
923
|
|
300
|
924 if (v->get_handler == NULL
|
|
|
925 && ngx_strncasecmp(value[1].data, (u_char *) "http_", 5) != 0
|
|
|
926 && ngx_strncasecmp(value[1].data, (u_char *) "sent_http_", 10) != 0
|
|
|
927 && ngx_strncasecmp(value[1].data, (u_char *) "upstream_http_", 14) != 0)
|
|
|
928 {
|
|
186
|
929 v->get_handler = ngx_http_rewrite_var;
|
|
104
|
930 v->data = index;
|
|
|
931 }
|
|
58
|
932
|
|
126
|
933 if (ngx_http_rewrite_value(cf, lcf, &value[2]) != NGX_CONF_OK) {
|
|
|
934 return NGX_CONF_ERROR;
|
|
64
|
935 }
|
|
50
|
936
|
|
186
|
937 if (v->set_handler) {
|
|
|
938 vhcode = ngx_http_script_start_code(cf->pool, &lcf->codes,
|
|
|
939 sizeof(ngx_http_script_var_handler_code_t));
|
|
|
940 if (vhcode == NULL) {
|
|
|
941 return NGX_CONF_ERROR;
|
|
|
942 }
|
|
|
943
|
|
|
944 vhcode->code = ngx_http_script_var_set_handler_code;
|
|
|
945 vhcode->handler = v->set_handler;
|
|
|
946 vhcode->data = v->data;
|
|
|
947
|
|
|
948 return NGX_CONF_OK;
|
|
|
949 }
|
|
|
950
|
|
|
951 vcode = ngx_http_script_start_code(cf->pool, &lcf->codes,
|
|
|
952 sizeof(ngx_http_script_var_code_t));
|
|
|
953 if (vcode == NULL) {
|
|
50
|
954 return NGX_CONF_ERROR;
|
|
|
955 }
|
|
|
956
|
|
186
|
957 vcode->code = ngx_http_script_set_var_code;
|
|
|
958 vcode->index = (uintptr_t) index;
|
|
50
|
959
|
|
|
960 return NGX_CONF_OK;
|
|
|
961 }
|
|
126
|
962
|
|
|
963
|
|
|
964 static char *
|
|
|
965 ngx_http_rewrite_value(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf,
|
|
|
966 ngx_str_t *value)
|
|
|
967 {
|
|
|
968 ngx_int_t n;
|
|
|
969 ngx_http_script_compile_t sc;
|
|
|
970 ngx_http_script_value_code_t *val;
|
|
|
971 ngx_http_script_complex_value_code_t *complex;
|
|
|
972
|
|
|
973 n = ngx_http_script_variables_count(value);
|
|
|
974
|
|
|
975 if (n == 0) {
|
|
|
976 val = ngx_http_script_start_code(cf->pool, &lcf->codes,
|
|
|
977 sizeof(ngx_http_script_value_code_t));
|
|
|
978 if (val == NULL) {
|
|
|
979 return NGX_CONF_ERROR;
|
|
|
980 }
|
|
|
981
|
|
|
982 n = ngx_atoi(value->data, value->len);
|
|
|
983
|
|
|
984 if (n == NGX_ERROR) {
|
|
|
985 n = 0;
|
|
|
986 }
|
|
|
987
|
|
|
988 val->code = ngx_http_script_value_code;
|
|
|
989 val->value = (uintptr_t) n;
|
|
|
990 val->text_len = (uintptr_t) value->len;
|
|
|
991 val->text_data = (uintptr_t) value->data;
|
|
|
992
|
|
|
993 return NGX_CONF_OK;
|
|
|
994 }
|
|
|
995
|
|
|
996 complex = ngx_http_script_start_code(cf->pool, &lcf->codes,
|
|
|
997 sizeof(ngx_http_script_complex_value_code_t));
|
|
|
998 if (complex == NULL) {
|
|
|
999 return NGX_CONF_ERROR;
|
|
|
1000 }
|
|
|
1001
|
|
|
1002 complex->code = ngx_http_script_complex_value_code;
|
|
|
1003 complex->lengths = NULL;
|
|
|
1004
|
|
|
1005 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t));
|
|
|
1006
|
|
|
1007 sc.cf = cf;
|
|
|
1008 sc.source = value;
|
|
|
1009 sc.lengths = &complex->lengths;
|
|
|
1010 sc.values = &lcf->codes;
|
|
|
1011 sc.variables = n;
|
|
|
1012 sc.complete_lengths = 1;
|
|
|
1013
|
|
|
1014 if (ngx_http_script_compile(&sc) != NGX_OK) {
|
|
|
1015 return NGX_CONF_ERROR;
|
|
|
1016 }
|
|
|
1017
|
|
|
1018 return NGX_CONF_OK;
|
|
|
1019 }
|
