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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_event.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 static char *ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf);
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14 static char *ngx_http_merge_locations(ngx_conf_t *cf,
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15 ngx_array_t *locations,
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16 void **loc_conf,
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17 ngx_http_module_t *module,
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18 ngx_uint_t ctx_index);
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19
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20 int ngx_http_max_module;
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21
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22 ngx_uint_t ngx_http_total_requests;
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23 uint64_t ngx_http_total_sent;
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24
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25
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26 ngx_int_t (*ngx_http_top_header_filter) (ngx_http_request_t *r);
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27 ngx_int_t (*ngx_http_top_body_filter) (ngx_http_request_t *r, ngx_chain_t *ch);
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28
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29
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30 static ngx_command_t ngx_http_commands[] = {
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31
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32 {ngx_string("http"),
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33 NGX_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_NOARGS,
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34 ngx_http_block,
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35 0,
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36 0,
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37 NULL},
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38
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39 ngx_null_command
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40 };
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41
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42
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43 static ngx_core_module_t ngx_http_module_ctx = {
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44 ngx_string("http"),
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45 NULL,
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46 NULL
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47 };
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48
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49
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50 ngx_module_t ngx_http_module = {
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51 NGX_MODULE,
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52 &ngx_http_module_ctx, /* module context */
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53 ngx_http_commands, /* module directives */
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54 NGX_CORE_MODULE, /* module type */
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55 NULL, /* init module */
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56 NULL /* init child */
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57 };
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58
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59
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60 static char *ngx_http_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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61 {
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62 char *rv;
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63 ngx_uint_t mi, m, s, l, p, a, n;
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64 ngx_uint_t port_found, addr_found, virtual_names;
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65 ngx_conf_t pcf;
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66 ngx_array_t in_ports;
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67 ngx_listening_t *ls;
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68 ngx_http_listen_t *lscf;
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69 ngx_http_module_t *module;
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70 ngx_http_handler_pt *h;
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71 ngx_http_conf_ctx_t *ctx;
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72 ngx_http_in_port_t *in_port, *inport;
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73 ngx_http_in_addr_t *in_addr, *inaddr;
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74 ngx_http_server_name_t *s_name, *name;
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75 ngx_http_core_srv_conf_t **cscfp, *cscf;
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76 ngx_http_core_loc_conf_t *clcf;
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77 ngx_http_core_main_conf_t *cmcf;
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78 #if (WIN32)
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79 ngx_iocp_conf_t *iocpcf;
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80 #endif
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81
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82 /* the main http context */
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83 ngx_test_null(ctx,
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84 ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)),
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85 NGX_CONF_ERROR);
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86
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87 *(ngx_http_conf_ctx_t **) conf = ctx;
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88
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89 /* count the number of the http modules and set up their indices */
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90
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91 ngx_http_max_module = 0;
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92 for (m = 0; ngx_modules[m]; m++) {
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93 if (ngx_modules[m]->type != NGX_HTTP_MODULE) {
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94 continue;
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95 }
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96
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97 ngx_modules[m]->ctx_index = ngx_http_max_module++;
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98 }
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99
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100 /* the main http main_conf, it's the same in the all http contexts */
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101 ngx_test_null(ctx->main_conf,
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102 ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module),
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103 NGX_CONF_ERROR);
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104
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105 /* the http null srv_conf, it's used to merge the server{}s' srv_conf's */
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106 ngx_test_null(ctx->srv_conf,
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107 ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module),
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108 NGX_CONF_ERROR);
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109
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110 /* the http null loc_conf, it's used to merge the server{}s' loc_conf's */
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111 ngx_test_null(ctx->loc_conf,
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112 ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module),
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113 NGX_CONF_ERROR);
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114
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115
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116 /* create the main_conf, srv_conf and loc_conf in all http modules */
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117
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118 for (m = 0; ngx_modules[m]; m++) {
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119 if (ngx_modules[m]->type != NGX_HTTP_MODULE) {
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120 continue;
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121 }
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122
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123 module = ngx_modules[m]->ctx;
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124 mi = ngx_modules[m]->ctx_index;
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125
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126 if (module->pre_conf) {
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127 if (module->pre_conf(cf) != NGX_OK) {
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128 return NGX_CONF_ERROR;
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129 }
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130 }
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131
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132 if (module->create_main_conf) {
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133 ngx_test_null(ctx->main_conf[mi], module->create_main_conf(cf),
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134 NGX_CONF_ERROR);
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135 }
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136
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137 if (module->create_srv_conf) {
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138 ngx_test_null(ctx->srv_conf[mi], module->create_srv_conf(cf),
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139 NGX_CONF_ERROR);
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140 }
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141
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142 if (module->create_loc_conf) {
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143 ngx_test_null(ctx->loc_conf[mi], module->create_loc_conf(cf),
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144 NGX_CONF_ERROR);
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145 }
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146 }
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147
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148 /* parse inside the http{} block */
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149
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150 pcf = *cf;
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151 cf->ctx = ctx;
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152 cf->module_type = NGX_HTTP_MODULE;
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153 cf->cmd_type = NGX_HTTP_MAIN_CONF;
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154 rv = ngx_conf_parse(cf, NULL);
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155
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156 if (rv != NGX_CONF_OK) {
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157 *cf = pcf;
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158 return rv;
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159 }
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160
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161 /*
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162 * init http{} main_conf's, merge the server{}s' srv_conf's
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163 * and its location{}s' loc_conf's
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164 */
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165
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166 cmcf = ctx->main_conf[ngx_http_core_module.ctx_index];
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167 cscfp = cmcf->servers.elts;
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168
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169 for (m = 0; ngx_modules[m]; m++) {
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170 if (ngx_modules[m]->type != NGX_HTTP_MODULE) {
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171 continue;
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172 }
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173
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174 module = ngx_modules[m]->ctx;
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175 mi = ngx_modules[m]->ctx_index;
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176
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177 /* init http{} main_conf's */
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178
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179 if (module->init_main_conf) {
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180 rv = module->init_main_conf(cf, ctx->main_conf[mi]);
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181 if (rv != NGX_CONF_OK) {
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182 *cf = pcf;
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183 return rv;
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184 }
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185 }
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186
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187 for (s = 0; s < cmcf->servers.nelts; s++) {
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188
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189 /* merge the server{}s' srv_conf's */
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190
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191 if (module->merge_srv_conf) {
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192 rv = module->merge_srv_conf(cf,
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193 ctx->srv_conf[mi],
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194 cscfp[s]->ctx->srv_conf[mi]);
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195 if (rv != NGX_CONF_OK) {
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196 *cf = pcf;
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197 return rv;
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198 }
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199 }
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200
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201 if (module->merge_loc_conf) {
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202
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203 /* merge the server{}'s loc_conf */
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204
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205 rv = module->merge_loc_conf(cf,
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206 ctx->loc_conf[mi],
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207 cscfp[s]->ctx->loc_conf[mi]);
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208 if (rv != NGX_CONF_OK) {
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209 *cf = pcf;
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210 return rv;
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211 }
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212
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213 /* merge the locations{}' loc_conf's */
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214
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215 rv = ngx_http_merge_locations(cf, &cscfp[s]->locations,
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216 cscfp[s]->ctx->loc_conf,
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217 module, mi);
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218 if (rv != NGX_CONF_OK) {
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219 *cf = pcf;
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220 return rv;
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221 }
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222
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223 #if 0
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224 clcfp = (ngx_http_core_loc_conf_t **) cscfp[s]->locations.elts;
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225
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226 for (l = 0; l < cscfp[s]->locations.nelts; l++) {
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227 rv = module->merge_loc_conf(cf,
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228 cscfp[s]->ctx->loc_conf[mi],
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229 clcfp[l]->loc_conf[mi]);
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230 if (rv != NGX_CONF_OK) {
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231 *cf = pcf;
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232 return rv;
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233 }
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234 }
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235 #endif
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236 }
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237 }
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238 }
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239
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240 /* we needed "http"'s cf->ctx while merging configuration */
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241 *cf = pcf;
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242
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243 /* init lists of the handlers */
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244
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245 ngx_init_array(cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers,
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246 cf->cycle->pool, 10, sizeof(ngx_http_handler_pt),
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247 NGX_CONF_ERROR);
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248 cmcf->phases[NGX_HTTP_REWRITE_PHASE].type = NGX_OK;
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249
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250
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251 /* the special find config phase for single handler */
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252
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253 ngx_init_array(cmcf->phases[NGX_HTTP_FIND_CONFIG_PHASE].handlers,
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254 cf->cycle->pool, 1, sizeof(ngx_http_handler_pt),
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255 NGX_CONF_ERROR);
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256 cmcf->phases[NGX_HTTP_FIND_CONFIG_PHASE].type = NGX_OK;
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257
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258 ngx_test_null(h, ngx_push_array(
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259 &cmcf->phases[NGX_HTTP_FIND_CONFIG_PHASE].handlers),
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260 NGX_CONF_ERROR);
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261 *h = ngx_http_find_location_config;
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262
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263
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264 ngx_init_array(cmcf->phases[NGX_HTTP_ACCESS_PHASE].handlers,
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265 cf->cycle->pool, 10, sizeof(ngx_http_handler_pt),
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266 NGX_CONF_ERROR);
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267 cmcf->phases[NGX_HTTP_ACCESS_PHASE].type = NGX_DECLINED;
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268
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269
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270 ngx_init_array(cmcf->phases[NGX_HTTP_CONTENT_PHASE].handlers,
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271 cf->cycle->pool, 10, sizeof(ngx_http_handler_pt),
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272 NGX_CONF_ERROR);
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273 cmcf->phases[NGX_HTTP_CONTENT_PHASE].type = NGX_OK;
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274
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275
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276 /*
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277 * create the lists of the ports, the addresses and the server names
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278 * to allow quickly find the server core module configuration at run-time
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279 */
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280
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281 ngx_init_array(in_ports, cf->pool, 10, sizeof(ngx_http_in_port_t),
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282 NGX_CONF_ERROR);
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283
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284 /* "server" directives */
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285 cscfp = cmcf->servers.elts;
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286 for (s = 0; s < cmcf->servers.nelts; s++) {
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287
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288 /* "listen" directives */
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289 lscf = cscfp[s]->listen.elts;
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290 for (l = 0; l < cscfp[s]->listen.nelts; l++) {
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291
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292 port_found = 0;
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293
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294 /* AF_INET only */
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295
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296 in_port = in_ports.elts;
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297 for (p = 0; p < in_ports.nelts; p++) {
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298
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299 if (lscf[l].port == in_port[p].port) {
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300
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301 /* the port is already in the port list */
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302
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303 port_found = 1;
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304 addr_found = 0;
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305
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306 in_addr = in_port[p].addrs.elts;
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307 for (a = 0; a < in_port[p].addrs.nelts; a++) {
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308
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309 if (lscf[l].addr == in_addr[a].addr) {
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310
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311 /* the address is already bound to this port */
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312
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313 /* "server_name" directives */
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314 s_name = cscfp[s]->server_names.elts;
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315 for (n = 0; n < cscfp[s]->server_names.nelts; n++) {
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316
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317 /*
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318 * add the server name and server core module
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319 * configuration to the address:port
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320 */
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321
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322 /* TODO: duplicate names can be checked here */
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323
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324 ngx_test_null(name,
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325 ngx_push_array(&in_addr[a].names),
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326 NGX_CONF_ERROR);
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327
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328 name->name = s_name[n].name;
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329 name->core_srv_conf = s_name[n].core_srv_conf;
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330 }
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331
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332 /*
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333 * check duplicate "default" server that
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334 * serves this address:port
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335 */
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336
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337 if (lscf[l].default_server) {
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338 if (in_addr[a].default_server) {
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339 ngx_log_error(NGX_LOG_ERR, cf->log, 0,
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340 "duplicate default server in %s:%d",
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341 lscf[l].file_name.data,
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342 lscf[l].line);
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343
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344 return NGX_CONF_ERROR;
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345 }
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346
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347 in_addr[a].core_srv_conf = cscfp[s];
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348 in_addr[a].default_server = 1;
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349 }
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350
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351 addr_found = 1;
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352
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353 break;
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354
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355 } else if (in_addr[a].addr == INADDR_ANY) {
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356
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357 /*
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358 * "*:port" must be the last resort so move it
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359 * to the end of the address list and add
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360 * the new address at its place
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361 */
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362
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363 ngx_test_null(inaddr,
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364 ngx_push_array(&in_port[p].addrs),
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365 NGX_CONF_ERROR);
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366
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367 ngx_memcpy(inaddr, &in_addr[a],
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368 sizeof(ngx_http_in_addr_t));
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369
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370 in_addr[a].addr = lscf[l].addr;
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371 in_addr[a].default_server = lscf[l].default_server;
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372 in_addr[a].core_srv_conf = cscfp[s];
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373
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374 /*
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375 * create the empty list of the server names that
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376 * can be served on this address:port
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377 */
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378
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379 ngx_init_array(inaddr->names, cf->pool, 10,
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380 sizeof(ngx_http_server_name_t),
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381 NGX_CONF_ERROR);
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382
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383 addr_found = 1;
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384
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385 break;
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386 }
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387 }
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388
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389 if (!addr_found) {
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390
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391 /*
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392 * add the address to the addresses list that
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393 * bound to this port
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394 */
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395
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396 ngx_test_null(inaddr,
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397 ngx_push_array(&in_port[p].addrs),
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398 NGX_CONF_ERROR);
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399
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400 inaddr->addr = lscf[l].addr;
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401 inaddr->default_server = lscf[l].default_server;
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402 inaddr->core_srv_conf = cscfp[s];
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403
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404 /*
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405 * create the empty list of the server names that
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406 * can be served on this address:port
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407 */
|
|
|
408
|
|
|
409 ngx_init_array(inaddr->names, cf->pool, 10,
|
|
|
410 sizeof(ngx_http_server_name_t),
|
|
|
411 NGX_CONF_ERROR);
|
|
|
412 }
|
|
|
413 }
|
|
|
414 }
|
|
|
415
|
|
|
416 if (!port_found) {
|
|
|
417
|
|
|
418 /* add the port to the in_port list */
|
|
|
419
|
|
|
420 ngx_test_null(in_port,
|
|
|
421 ngx_push_array(&in_ports),
|
|
|
422 NGX_CONF_ERROR);
|
|
|
423
|
|
|
424 in_port->port = lscf[l].port;
|
|
|
425
|
|
|
426 ngx_test_null(in_port->port_text.data, ngx_palloc(cf->pool, 7),
|
|
|
427 NGX_CONF_ERROR);
|
|
|
428 in_port->port_text.len = ngx_snprintf((char *)
|
|
|
429 in_port->port_text.data,
|
|
|
430 7, ":%d",
|
|
|
431 in_port->port);
|
|
|
432
|
|
|
433 /* create list of the addresses that bound to this port ... */
|
|
|
434
|
|
|
435 ngx_init_array(in_port->addrs, cf->pool, 10,
|
|
|
436 sizeof(ngx_http_in_addr_t),
|
|
|
437 NGX_CONF_ERROR);
|
|
|
438
|
|
|
439 ngx_test_null(inaddr, ngx_push_array(&in_port->addrs),
|
|
|
440 NGX_CONF_ERROR);
|
|
|
441
|
|
|
442 /* ... and add the address to this list */
|
|
|
443
|
|
|
444 inaddr->addr = lscf[l].addr;
|
|
|
445 inaddr->default_server = lscf[l].default_server;
|
|
|
446 inaddr->core_srv_conf = cscfp[s];
|
|
|
447
|
|
|
448 /*
|
|
|
449 * create the empty list of the server names that
|
|
|
450 * can be served on this address:port
|
|
|
451 */
|
|
|
452
|
|
|
453 ngx_init_array(inaddr->names, cf->pool, 10,
|
|
|
454 sizeof(ngx_http_server_name_t),
|
|
|
455 NGX_CONF_ERROR);
|
|
|
456 }
|
|
|
457 }
|
|
|
458 }
|
|
|
459
|
|
|
460 /* optimize the lists of the ports, the addresses and the server names */
|
|
|
461
|
|
|
462 /* AF_INET only */
|
|
|
463
|
|
|
464 in_port = in_ports.elts;
|
|
|
465 for (p = 0; p < in_ports.nelts; p++) {
|
|
|
466
|
|
|
467 /* check whether the all server names point to the same server */
|
|
|
468
|
|
|
469 in_addr = in_port[p].addrs.elts;
|
|
|
470 for (a = 0; a < in_port[p].addrs.nelts; a++) {
|
|
|
471
|
|
|
472 virtual_names = 0;
|
|
|
473
|
|
|
474 name = in_addr[a].names.elts;
|
|
|
475 for (n = 0; n < in_addr[a].names.nelts; n++) {
|
|
|
476 if (in_addr[a].core_srv_conf != name[n].core_srv_conf) {
|
|
|
477 virtual_names = 1;
|
|
|
478 break;
|
|
|
479 }
|
|
|
480 }
|
|
|
481
|
|
|
482 /*
|
|
|
483 * if the all server names point to the same server
|
|
|
484 * then we do not need to check them at run-time
|
|
|
485 */
|
|
|
486
|
|
|
487 if (!virtual_names) {
|
|
|
488 in_addr[a].names.nelts = 0;
|
|
|
489 }
|
|
|
490 }
|
|
|
491
|
|
|
492 /*
|
|
|
493 * if there's the binding to "*:port" then we need to bind()
|
|
|
494 * to "*:port" only and ignore the other bindings
|
|
|
495 */
|
|
|
496
|
|
|
497 if (in_addr[a - 1].addr == INADDR_ANY) {
|
|
|
498 a--;
|
|
|
499
|
|
|
500 } else {
|
|
|
501 a = 0;
|
|
|
502 }
|
|
|
503
|
|
|
504 in_addr = in_port[p].addrs.elts;
|
|
|
505 while (a < in_port[p].addrs.nelts) {
|
|
|
506
|
|
|
507 ls = ngx_listening_inet_stream_socket(cf, in_addr[a].addr,
|
|
|
508 in_port[p].port);
|
|
|
509 if (ls == NULL) {
|
|
|
510 return NGX_CONF_ERROR;
|
|
|
511 }
|
|
|
512
|
|
|
513 ls->backlog = -1;
|
|
|
514 #if 0
|
|
|
515 #if 0
|
|
|
516 ls->nonblocking = 1;
|
|
|
517 #else
|
|
|
518 ls->nonblocking = 0;
|
|
|
519 #endif
|
|
|
520 #endif
|
|
|
521 ls->addr_ntop = 1;
|
|
|
522
|
|
|
523 ls->handler = ngx_http_init_connection;
|
|
|
524
|
|
|
525 cscf = in_addr[a].core_srv_conf;
|
|
|
526 ls->pool_size = cscf->connection_pool_size;
|
|
|
527 ls->post_accept_timeout = cscf->post_accept_timeout;
|
|
|
528
|
|
|
529 clcf = cscf->ctx->loc_conf[ngx_http_core_module.ctx_index];
|
|
|
530 ls->log = clcf->err_log;
|
|
|
531
|
|
|
532 #if (WIN32)
|
|
|
533 iocpcf = ngx_event_get_conf(cf->cycle->conf_ctx, ngx_iocp_module);
|
|
|
534 if (iocpcf->acceptex_read) {
|
|
|
535 ls->post_accept_buffer_size = cscf->client_header_buffer_size;
|
|
|
536 }
|
|
|
537 #endif
|
|
|
538
|
|
|
539 ls->ctx = ctx;
|
|
|
540
|
|
|
541 if (in_port[p].addrs.nelts > 1) {
|
|
|
542
|
|
|
543 in_addr = in_port[p].addrs.elts;
|
|
|
544 if (in_addr[in_port[p].addrs.nelts - 1].addr != INADDR_ANY) {
|
|
|
545
|
|
|
546 /*
|
|
|
547 * if this port has not the "*:port" binding then create
|
|
|
548 * the separate ngx_http_in_port_t for the all bindings
|
|
|
549 */
|
|
|
550
|
|
|
551 ngx_test_null(inport,
|
|
|
552 ngx_palloc(cf->pool,
|
|
|
553 sizeof(ngx_http_in_port_t)),
|
|
|
554 NGX_CONF_ERROR);
|
|
|
555
|
|
|
556 inport->port = in_port[p].port;
|
|
|
557 inport->port_text = in_port[p].port_text;
|
|
|
558
|
|
|
559 /* init list of the addresses ... */
|
|
|
560
|
|
|
561 ngx_init_array(inport->addrs, cf->pool, 1,
|
|
|
562 sizeof(ngx_http_in_addr_t),
|
|
|
563 NGX_CONF_ERROR);
|
|
|
564
|
|
|
565 /* ... and set up it with the first address */
|
|
|
566
|
|
|
567 inport->addrs.nelts = 1;
|
|
|
568 inport->addrs.elts = in_port[p].addrs.elts;
|
|
|
569
|
|
|
570 ls->servers = inport;
|
|
|
571
|
|
|
572 /* prepare for the next cycle */
|
|
|
573
|
|
|
574 in_port[p].addrs.elts = (char *) in_port[p].addrs.elts
|
|
|
575 + in_port[p].addrs.size;
|
|
|
576 in_port[p].addrs.nelts--;
|
|
|
577
|
|
|
578 in_addr = (ngx_http_in_addr_t *) in_port[p].addrs.elts;
|
|
|
579 a = 0;
|
|
|
580
|
|
|
581 continue;
|
|
|
582 }
|
|
|
583 }
|
|
|
584
|
|
|
585 ls->servers = &in_port[p];
|
|
|
586 a++;
|
|
|
587 }
|
|
|
588 }
|
|
|
589
|
|
|
590 #if (NGX_DEBUG)
|
|
|
591 in_port = in_ports.elts;
|
|
|
592 for (p = 0; p < in_ports.nelts; p++) {
|
|
|
593 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
|
594 "port: %d %08x", in_port[p].port, &in_port[p]);
|
|
|
595 in_addr = in_port[p].addrs.elts;
|
|
|
596 for (a = 0; a < in_port[p].addrs.nelts; a++) {
|
|
|
597 u_char ip[20];
|
|
|
598 ngx_inet_ntop(AF_INET, &in_addr[a].addr, ip, 20);
|
|
|
599 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
|
600 "%s %08x", ip, in_addr[a].core_srv_conf);
|
|
|
601 s_name = in_addr[a].names.elts;
|
|
|
602 for (n = 0; n < in_addr[a].names.nelts; n++) {
|
|
|
603 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, cf->log, 0,
|
|
|
604 "%s %08x", s_name[n].name.data,
|
|
|
605 s_name[n].core_srv_conf);
|
|
|
606 }
|
|
|
607 }
|
|
|
608 }
|
|
|
609 #endif
|
|
|
610
|
|
|
611 return NGX_CONF_OK;
|
|
|
612 }
|
|
|
613
|
|
|
614
|
|
|
615 static char *ngx_http_merge_locations(ngx_conf_t *cf,
|
|
|
616 ngx_array_t *locations,
|
|
|
617 void **loc_conf,
|
|
|
618 ngx_http_module_t *module,
|
|
|
619 ngx_uint_t ctx_index)
|
|
|
620 {
|
|
|
621 char *rv;
|
|
|
622 ngx_uint_t i;
|
|
|
623 ngx_http_core_loc_conf_t **clcfp;
|
|
|
624
|
|
|
625 clcfp = /* (ngx_http_core_loc_conf_t **) */ locations->elts;
|
|
|
626
|
|
|
627 for (i = 0; i < locations->nelts; i++) {
|
|
|
628 rv = module->merge_loc_conf(cf, loc_conf[ctx_index],
|
|
|
629 clcfp[i]->loc_conf[ctx_index]);
|
|
|
630 if (rv != NGX_CONF_OK) {
|
|
|
631 return rv;
|
|
|
632 }
|
|
|
633
|
|
|
634 rv = ngx_http_merge_locations(cf, &clcfp[i]->locations,
|
|
|
635 clcfp[i]->loc_conf, module, ctx_index);
|
|
|
636 if (rv != NGX_CONF_OK) {
|
|
|
637 return rv;
|
|
|
638 }
|
|
|
639 }
|
|
|
640
|
|
|
641 return NGX_CONF_OK;
|
|
|
642 }
|
