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1
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2 /*
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3 * Copyright (C) Igor Sysoev
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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_http.h>
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10
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28
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11 #include <openssl/engine.h>
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12
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0
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13
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14 #define NGX_DEFLAUT_CERTIFICATE "cert.pem"
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15 #define NGX_DEFLAUT_CERTIFICATE_KEY "cert.pem"
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16
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17
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28
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18 static void *ngx_http_ssl_create_main_conf(ngx_conf_t *cf);
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19 static char *ngx_http_ssl_init_main_conf(ngx_conf_t *cf, void *conf);
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0
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20 static void *ngx_http_ssl_create_srv_conf(ngx_conf_t *cf);
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21 static char *ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf,
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22 void *parent, void *child);
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23
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24
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25 static ngx_command_t ngx_http_ssl_commands[] = {
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26
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28
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27 { ngx_string("ssl_engine"),
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28 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1,
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29 ngx_conf_set_str_slot,
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30 NGX_HTTP_MAIN_CONF_OFFSET,
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31 offsetof(ngx_http_ssl_main_conf_t, engine),
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32 NULL },
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33
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0
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34 { ngx_string("ssl"),
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35 NGX_HTTP_SRV_CONF|NGX_CONF_FLAG,
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36 ngx_conf_set_flag_slot,
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37 NGX_HTTP_SRV_CONF_OFFSET,
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38 offsetof(ngx_http_ssl_srv_conf_t, enable),
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39 NULL },
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40
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41 { ngx_string("ssl_certificate"),
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42 NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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43 ngx_conf_set_str_slot,
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44 NGX_HTTP_SRV_CONF_OFFSET,
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45 offsetof(ngx_http_ssl_srv_conf_t, certificate),
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46 NULL },
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47
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48 { ngx_string("ssl_certificate_key"),
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49 NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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50 ngx_conf_set_str_slot,
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51 NGX_HTTP_SRV_CONF_OFFSET,
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52 offsetof(ngx_http_ssl_srv_conf_t, certificate_key),
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53 NULL },
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54
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28
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55 { ngx_string("ssl_ciphers"),
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56 NGX_HTTP_SRV_CONF|NGX_CONF_TAKE1,
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57 ngx_conf_set_str_slot,
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58 NGX_HTTP_SRV_CONF_OFFSET,
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59 offsetof(ngx_http_ssl_srv_conf_t, ciphers),
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60 NULL },
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61
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0
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62 ngx_null_command
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63 };
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64
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65
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66 static ngx_http_module_t ngx_http_ssl_module_ctx = {
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67 NULL, /* pre conf */
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68
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28
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69 ngx_http_ssl_create_main_conf, /* create main configuration */
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70 ngx_http_ssl_init_main_conf, /* init main configuration */
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0
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71
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72 ngx_http_ssl_create_srv_conf, /* create server configuration */
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73 ngx_http_ssl_merge_srv_conf, /* merge server configuration */
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74
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75 NULL, /* create location configuration */
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76 NULL, /* merge location configuration */
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77 };
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78
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79
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80 ngx_module_t ngx_http_ssl_module = {
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81 NGX_MODULE,
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82 &ngx_http_ssl_module_ctx, /* module context */
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83 ngx_http_ssl_commands, /* module directives */
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84 NGX_HTTP_MODULE, /* module type */
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85 NULL, /* init module */
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86 NULL /* init process */
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87 };
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88
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89
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28
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90 static void *ngx_http_ssl_create_main_conf(ngx_conf_t *cf)
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91 {
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92 ngx_http_ssl_main_conf_t *mcf;
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93
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94 if (!(mcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssl_main_conf_t)))) {
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95 return NGX_CONF_ERROR;
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96 }
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97
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98 /*
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99 * set by ngx_pcalloc():
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100 *
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101 * mcf->engine.len = 0;
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102 * mcf->engine.data = NULL;
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103 */
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104
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105 return mcf;
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106 }
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107
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108
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109 static char *ngx_http_ssl_init_main_conf(ngx_conf_t *cf, void *conf)
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110 {
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111 ngx_http_ssl_main_conf_t *mcf = conf;
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112
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113 ENGINE *engine;
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114
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115 if (mcf->engine.len == 0) {
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116 return NGX_CONF_OK;
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117 }
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118
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119 engine = ENGINE_by_id((const char *) mcf->engine.data);
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120
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121 if (engine == NULL) {
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122 ngx_ssl_error(NGX_LOG_WARN, cf->log, 0,
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123 "ENGINE_by_id(\"%V\") failed", &mcf->engine);
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124 return NGX_CONF_ERROR;
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125 }
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126
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127 if (ENGINE_set_default(engine, ENGINE_METHOD_ALL) == 0) {
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128 ngx_ssl_error(NGX_LOG_WARN, cf->log, 0,
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129 "ENGINE_set_default(\"%V\", ENGINE_METHOD_ALL) failed",
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130 &mcf->engine);
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131 return NGX_CONF_ERROR;
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132 }
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133
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134 ENGINE_free(engine);
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135
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136 return NGX_CONF_OK;
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137 }
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138
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139
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0
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140 static void *ngx_http_ssl_create_srv_conf(ngx_conf_t *cf)
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141 {
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142 ngx_http_ssl_srv_conf_t *scf;
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143
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144 if (!(scf = ngx_pcalloc(cf->pool, sizeof(ngx_http_ssl_srv_conf_t)))) {
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145 return NGX_CONF_ERROR;
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146 }
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147
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28
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148 /*
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149 * set by ngx_pcalloc():
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150 *
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151 * scf->certificate.len = 0;
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152 * scf->certificate.data = NULL;
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153 * scf->certificate_key.len = 0;
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154 * scf->certificate_key.data = NULL;
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155 * scf->ciphers.len = 0;
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156 * scf->ciphers.data = NULL;
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157 */
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158
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0
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159 scf->enable = NGX_CONF_UNSET;
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160
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161 return scf;
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162 }
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163
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164
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165 static char *ngx_http_ssl_merge_srv_conf(ngx_conf_t *cf,
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166 void *parent, void *child)
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167 {
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168 ngx_http_ssl_srv_conf_t *prev = parent;
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169 ngx_http_ssl_srv_conf_t *conf = child;
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170
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171 ngx_conf_merge_value(conf->enable, prev->enable, 0);
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172
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173 if (conf->enable == 0) {
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174 return NGX_CONF_OK;
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175 }
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176
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177 ngx_conf_merge_str_value(conf->certificate, prev->certificate,
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178 NGX_DEFLAUT_CERTIFICATE);
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179
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180 ngx_conf_merge_str_value(conf->certificate_key, prev->certificate_key,
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181 NGX_DEFLAUT_CERTIFICATE_KEY);
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182
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183 ngx_conf_merge_str_value(conf->ciphers, prev->ciphers, "");
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184
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185
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186 /* TODO: configure methods */
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187
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188 conf->ssl_ctx = SSL_CTX_new(SSLv23_server_method());
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189
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190 if (conf->ssl_ctx == NULL) {
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191 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0, "SSL_CTX_new() failed");
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192 return NGX_CONF_ERROR;
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193 }
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194
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195 if (conf->ciphers.len) {
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196 if (SSL_CTX_set_cipher_list(conf->ssl_ctx,
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197 (const char *) conf->ciphers.data) == 0)
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198 {
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199 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
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200 "SSL_CTX_set_cipher_list(\"%V\") failed",
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201 &conf->ciphers);
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202 }
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203 }
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204
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205 if (SSL_CTX_use_certificate_file(conf->ssl_ctx,
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206 (char *) conf->certificate.data,
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207 SSL_FILETYPE_PEM) == 0) {
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208 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
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209 "SSL_CTX_use_certificate_file(\"%s\") failed",
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210 conf->certificate.data);
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211 return NGX_CONF_ERROR;
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212 }
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213
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214 if (SSL_CTX_use_PrivateKey_file(conf->ssl_ctx,
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215 (char *) conf->certificate_key.data,
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216 SSL_FILETYPE_PEM) == 0) {
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217 ngx_ssl_error(NGX_LOG_EMERG, cf->log, 0,
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218 "SSL_CTX_use_PrivateKey_file(\"%s\") failed",
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219 conf->certificate_key.data);
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220 return NGX_CONF_ERROR;
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221 }
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222
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223 return NGX_CONF_OK;
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224 }
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225
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226
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227 #if 0
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228
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229 static ngx_int_t ngx_http_ssl_init_process(ngx_cycle_t *cycle)
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230 {
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231 ngx_uint_t i;
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232 ngx_http_ssl_srv_conf_t *sscf;
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233 ngx_http_core_srv_conf_t **cscfp;
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234 ngx_http_core_main_conf_t *cmcf;
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235
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236 cmcf = ngx_http_cycle_get_module_main_conf(cycle, ngx_http_core_module);
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237
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238 cscfp = cmcf->servers.elts;
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239
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240 for (i = 0; i < cmcf->servers.nelts; i++) {
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241 sscf = cscfp[i]->ctx->srv_conf[ngx_http_ssl_module.ctx_index];
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242
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243 if (sscf->enable) {
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244 cscfp[i]->recv = ngx_ssl_recv;
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245 cscfp[i]->send_chain = ngx_ssl_send_chain;
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246 }
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247 }
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248
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249 return NGX_OK;
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250 }
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251
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252 #endif
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