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236
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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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236
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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 /*
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14 * The module can check browser versions conforming to the following formats:
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15 * X, X.X, X.X.X, and X.X.X.X. The maximum values of each format may be
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16 * 4000, 4000.99, 4000.99.99, and 4000.99.99.99.
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17 */
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18
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19
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20 #define NGX_HTTP_MODERN_BROWSER 0
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21 #define NGX_HTTP_ANCIENT_BROWSER 1
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22
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23
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24 typedef struct {
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25 u_char browser[12];
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26 size_t skip;
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27 size_t add;
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28 u_char name[12];
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29 } ngx_http_modern_browser_mask_t;
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30
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31
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32 typedef struct {
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33 ngx_uint_t version;
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34 size_t skip;
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35 size_t add;
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36 u_char name[12];
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37 } ngx_http_modern_browser_t;
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38
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39
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40 typedef struct {
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41 ngx_str_t name;
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42 ngx_http_get_variable_pt handler;
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43 uintptr_t data;
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44 } ngx_http_browser_variable_t;
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45
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46
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47 typedef struct {
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48 ngx_array_t *modern_browsers;
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49 ngx_array_t *ancient_browsers;
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50 ngx_http_variable_value_t *modern_browser_value;
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51 ngx_http_variable_value_t *ancient_browser_value;
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52
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53 unsigned modern_unlisted_browsers:1;
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54 unsigned netscape4:1;
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55 } ngx_http_browser_conf_t;
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56
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57
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58 static ngx_int_t ngx_http_msie_variable(ngx_http_request_t *r,
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59 ngx_http_variable_value_t *v, uintptr_t data);
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60 static ngx_int_t ngx_http_browser_variable(ngx_http_request_t *r,
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61 ngx_http_variable_value_t *v, uintptr_t data);
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62
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63 static ngx_uint_t ngx_http_browser(ngx_http_request_t *r,
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64 ngx_http_browser_conf_t *cf);
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244
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65
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236
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66 static ngx_int_t ngx_http_browser_add_variable(ngx_conf_t *cf);
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67 static void *ngx_http_browser_create_conf(ngx_conf_t *cf);
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68 static char *ngx_http_browser_merge_conf(ngx_conf_t *cf, void *parent,
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69 void *child);
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70 static int ngx_libc_cdecl ngx_http_modern_browser_sort(const void *one,
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71 const void *two);
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72 static char *ngx_http_modern_browser(ngx_conf_t *cf, ngx_command_t *cmd,
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73 void *conf);
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74 static char *ngx_http_ancient_browser(ngx_conf_t *cf, ngx_command_t *cmd,
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75 void *conf);
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76 static char *ngx_http_modern_browser_value(ngx_conf_t *cf, ngx_command_t *cmd,
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77 void *conf);
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78 static char *ngx_http_ancient_browser_value(ngx_conf_t *cf, ngx_command_t *cmd,
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79 void *conf);
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80
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81
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82 static ngx_command_t ngx_http_browser_commands[] = {
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83
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84 { ngx_string("modern_browser"),
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85 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
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86 ngx_http_modern_browser,
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87 NGX_HTTP_LOC_CONF_OFFSET,
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88 0,
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89 NULL },
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90
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91 { ngx_string("ancient_browser"),
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92 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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93 ngx_http_ancient_browser,
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94 NGX_HTTP_LOC_CONF_OFFSET,
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95 0,
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96 NULL },
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97
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98 { ngx_string("modern_browser_value"),
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99 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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100 ngx_http_modern_browser_value,
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101 NGX_HTTP_LOC_CONF_OFFSET,
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102 0,
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103 NULL },
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104
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105 { ngx_string("ancient_browser_value"),
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106 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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107 ngx_http_ancient_browser_value,
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108 NGX_HTTP_LOC_CONF_OFFSET,
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109 0,
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110 NULL },
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111
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112 ngx_null_command
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113 };
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114
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115
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116 static ngx_http_module_t ngx_http_browser_module_ctx = {
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117 ngx_http_browser_add_variable, /* preconfiguration */
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118 NULL, /* postconfiguration */
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119
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120 NULL, /* create main configuration */
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121 NULL, /* init main configuration */
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122
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123 NULL, /* create server configuration */
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124 NULL, /* merge server configuration */
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125
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126 ngx_http_browser_create_conf, /* create location configuration */
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127 ngx_http_browser_merge_conf /* merge location configuration */
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128 };
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129
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130
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131 ngx_module_t ngx_http_browser_module = {
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132 NGX_MODULE_V1,
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133 &ngx_http_browser_module_ctx, /* module context */
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134 ngx_http_browser_commands, /* module directives */
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135 NGX_HTTP_MODULE, /* module type */
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136 NULL, /* init master */
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137 NULL, /* init module */
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138 NULL, /* init process */
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139 NULL, /* init thread */
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140 NULL, /* exit thread */
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141 NULL, /* exit process */
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142 NULL, /* exit master */
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143 NGX_MODULE_V1_PADDING
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144 };
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145
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146
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147 static ngx_http_modern_browser_mask_t ngx_http_modern_browser_masks[] = {
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148
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149 /* Opera must be the first browser to check */
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150
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151 /*
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152 * "Opera/7.50 (X11; FreeBSD i386; U) [en]"
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153 * "Mozilla/5.0 (X11; FreeBSD i386; U) Opera 7.50 [en]"
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154 * "Mozilla/4.0 (compatible; MSIE 6.0; X11; FreeBSD i386) Opera 7.50 [en]"
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155 * "Opera/8.0 (Windows NT 5.1; U; ru)"
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156 * "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; en) Opera 8.0"
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157 * "Opera/9.01 (X11; FreeBSD 6 i386; U; en)"
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158 */
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159
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160 { "opera",
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161 0,
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162 sizeof("Opera ") - 1,
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163 "Opera"},
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164
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165 /* "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)" */
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166
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167 { "msie",
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168 sizeof("Mozilla/4.0 (compatible; ") - 1,
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169 sizeof("MSIE ") - 1,
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170 "MSIE "},
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171
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172 /*
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173 * "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020610"
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174 * "Mozilla/5.0 (Windows; U; Windows NT 5.1; ru-RU; rv:1.5) Gecko/20031006"
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175 * "Mozilla/5.0 (Windows; U; Windows NT 5.1; ru-RU; rv:1.6) Gecko/20040206
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176 * Firefox/0.8"
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177 * "Mozilla/5.0 (Windows; U; Windows NT 5.1; ru-RU; rv:1.7.8)
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178 * Gecko/20050511 Firefox/1.0.4"
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179 * "Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.8.0.5) Gecko/20060729
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180 * Firefox/1.5.0.5"
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181 */
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182
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183 { "gecko",
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184 sizeof("Mozilla/5.0 (") - 1,
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185 sizeof("rv:") - 1,
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186 "rv:"},
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187
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188 /*
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189 * "Mozilla/5.0 (Macintosh; U; PPC Mac OS X; ru-ru) AppleWebKit/125.2
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190 * (KHTML, like Gecko) Safari/125.7"
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191 * "Mozilla/5.0 (SymbianOS/9.1; U; en-us) AppleWebKit/413
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192 * (KHTML, like Gecko) Safari/413"
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193 * "Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en) AppleWebKit/418
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194 * (KHTML, like Gecko) Safari/417.9.3"
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195 * "Mozilla/5.0 (Macintosh; U; PPC Mac OS X; ru-ru) AppleWebKit/418.8
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196 * (KHTML, like Gecko) Safari/419.3"
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197 */
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198
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199 { "safari",
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200 sizeof("Mozilla/5.0 (") - 1,
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201 sizeof("Safari/") - 1,
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202 "Safari/"},
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203
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204 /*
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205 * "Mozilla/5.0 (compatible; Konqueror/3.1; Linux)"
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206 * "Mozilla/5.0 (compatible; Konqueror/3.4; Linux) KHTML/3.4.2 (like Gecko)"
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207 * "Mozilla/5.0 (compatible; Konqueror/3.5; FreeBSD) KHTML/3.5.1
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208 * (like Gecko)"
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209 */
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210
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211 { "konqueror",
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212 sizeof("Mozilla/5.0 (compatible; ") - 1,
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213 sizeof("Konqueror/") - 1,
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214 "Konqueror/"},
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215
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216 { "", 0, 0, "" }
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217
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218 };
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219
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220
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221 static ngx_http_browser_variable_t ngx_http_browsers[] = {
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222 { ngx_string("msie"), ngx_http_msie_variable, 0 },
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223 { ngx_string("modern_browser"), ngx_http_browser_variable,
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224 NGX_HTTP_MODERN_BROWSER },
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225 { ngx_string("ancient_browser"), ngx_http_browser_variable,
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226 NGX_HTTP_ANCIENT_BROWSER },
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227 { ngx_null_string, NULL, 0 }
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228 };
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229
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230
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231 static ngx_int_t
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232 ngx_http_browser_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
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233 uintptr_t data)
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234 {
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235 ngx_uint_t rc;
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236 ngx_http_browser_conf_t *cf;
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237
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238 cf = ngx_http_get_module_loc_conf(r, ngx_http_browser_module);
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239
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240 rc = ngx_http_browser(r, cf);
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241
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242 if (data == NGX_HTTP_MODERN_BROWSER && rc == NGX_HTTP_MODERN_BROWSER) {
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243 *v = *cf->modern_browser_value;
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244 return NGX_OK;
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245 }
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246
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247 if (data == NGX_HTTP_ANCIENT_BROWSER && rc == NGX_HTTP_ANCIENT_BROWSER) {
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248 *v = *cf->ancient_browser_value;
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249 return NGX_OK;
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250 }
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251
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252 *v = ngx_http_variable_null_value;
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253 return NGX_OK;
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254 }
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255
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256
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257 static ngx_uint_t
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258 ngx_http_browser(ngx_http_request_t *r, ngx_http_browser_conf_t *cf)
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259 {
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260 size_t len;
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261 u_char *name, *ua, *last, c;
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262 ngx_str_t *ancient;
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263 ngx_uint_t i, version, ver, scale;
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264 ngx_http_modern_browser_t *modern;
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265
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266 if (r->headers_in.user_agent == NULL) {
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267 if (cf->modern_unlisted_browsers) {
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268 return NGX_HTTP_MODERN_BROWSER;
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269 }
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270
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271 return NGX_HTTP_ANCIENT_BROWSER;
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272 }
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273
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274 ua = r->headers_in.user_agent->value.data;
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275 len = r->headers_in.user_agent->value.len;
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276 last = ua + len;
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277
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278 if (cf->modern_browsers) {
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279 modern = cf->modern_browsers->elts;
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280
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281 for (i = 0; i < cf->modern_browsers->nelts; i++) {
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282 name = ua + modern[i].skip;
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283
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284 if (name >= last) {
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285 continue;
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286 }
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287
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288 name = (u_char *) ngx_strstr(name, modern[i].name);
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289
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290 if (name == NULL) {
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291 continue;
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292 }
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293
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294 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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295 "browser: \"%s\"", name);
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296
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297 name += modern[i].add;
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298
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299 if (name >= last) {
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300 continue;
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301 }
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302
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303 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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304 "version: \"%ui\" \"%s\"", modern[i].version, name);
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305
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306 version = 0;
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307 ver = 0;
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308 scale = 1000000;
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309
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310 while (name < last) {
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311
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312 c = *name++;
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313
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314 if (c >= '0' && c <= '9') {
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315 ver = ver * 10 + (c - '0');
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316 continue;
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317 }
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318
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319 if (c == '.') {
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320 version += ver * scale;
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321
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448
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322 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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323 "version: \"%ui\" \"%ui\"",
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324 modern[i].version, version);
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325
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236
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326 if (version > modern[i].version) {
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327 return NGX_HTTP_MODERN_BROWSER;
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328 }
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329
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330 ver = 0;
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331 scale /= 100;
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332 continue;
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333 }
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334
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335 break;
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336 }
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337
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338 version += ver * scale;
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339
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340 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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341 "version: \"%ui\" \"%ui\"",
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342 modern[i].version, version);
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343
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344 if (version >= modern[i].version) {
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345 return NGX_HTTP_MODERN_BROWSER;
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346 }
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448
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347
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348 return NGX_HTTP_ANCIENT_BROWSER;
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236
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349 }
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350
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351 if (!cf->modern_unlisted_browsers) {
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352 return NGX_HTTP_ANCIENT_BROWSER;
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353 }
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354 }
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355
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356 if (cf->netscape4) {
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357 if (len > sizeof("Mozilla/4.72 ") - 1
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358 && ngx_strncmp(ua, "Mozilla/", sizeof("Mozilla/") - 1) == 0
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359 && ua[8] > '0' && ua[8] < '5')
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360 {
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361 return NGX_HTTP_ANCIENT_BROWSER;
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362 }
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363 }
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364
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365 if (cf->ancient_browsers) {
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366 ancient = cf->ancient_browsers->elts;
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367
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368 for (i = 0; i < cf->ancient_browsers->nelts; i++) {
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369 if (len >= ancient[i].len
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370 && ngx_strstr(ua, ancient[i].data) != NULL)
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371 {
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372 return NGX_HTTP_ANCIENT_BROWSER;
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373 }
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374 }
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375 }
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376
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377 if (cf->modern_unlisted_browsers) {
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378 return NGX_HTTP_MODERN_BROWSER;
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379 }
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380
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381 return NGX_HTTP_ANCIENT_BROWSER;
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382 }
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383
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384
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385 static ngx_int_t
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386 ngx_http_msie_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
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387 uintptr_t data)
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388 {
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389 if (r->headers_in.msie) {
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390 *v = ngx_http_variable_true_value;
|
|
|
391 return NGX_OK;
|
|
|
392 }
|
|
|
393
|
|
|
394 *v = ngx_http_variable_null_value;
|
|
|
395 return NGX_OK;
|
|
|
396 }
|
|
|
397
|
|
|
398
|
|
|
399 static ngx_int_t
|
|
|
400 ngx_http_browser_add_variable(ngx_conf_t *cf)
|
|
|
401 {
|
|
|
402 ngx_http_browser_variable_t *var;
|
|
|
403 ngx_http_variable_t *v;
|
|
|
404
|
|
|
405 for (var = ngx_http_browsers; var->name.len; var++) {
|
|
|
406
|
|
340
|
407 v = ngx_http_add_variable(cf, &var->name, NGX_HTTP_VAR_CHANGEABLE);
|
|
236
|
408 if (v == NULL) {
|
|
|
409 return NGX_ERROR;
|
|
|
410 }
|
|
|
411
|
|
|
412 v->get_handler = var->handler;
|
|
|
413 v->data = var->data;
|
|
|
414 }
|
|
|
415
|
|
|
416 return NGX_OK;
|
|
|
417 }
|
|
|
418
|
|
|
419
|
|
|
420 static void *
|
|
|
421 ngx_http_browser_create_conf(ngx_conf_t *cf)
|
|
|
422 {
|
|
|
423 ngx_http_browser_conf_t *conf;
|
|
|
424
|
|
|
425 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_browser_conf_t));
|
|
|
426 if (conf == NULL) {
|
|
496
|
427 return NULL;
|
|
236
|
428 }
|
|
|
429
|
|
|
430 /*
|
|
|
431 * set by ngx_pcalloc():
|
|
|
432 *
|
|
|
433 * conf->modern_browsers = NULL;
|
|
|
434 * conf->ancient_browsers = NULL;
|
|
|
435 * conf->modern_browser_value = NULL;
|
|
|
436 * conf->ancient_browser_value = NULL;
|
|
|
437 *
|
|
|
438 * conf->modern_unlisted_browsers = 0;
|
|
|
439 * conf->netscape4 = 0;
|
|
|
440 */
|
|
|
441
|
|
|
442 return conf;
|
|
|
443 }
|
|
|
444
|
|
|
445
|
|
|
446 static char *
|
|
|
447 ngx_http_browser_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
448 {
|
|
|
449 ngx_http_browser_conf_t *prev = parent;
|
|
|
450 ngx_http_browser_conf_t *conf = child;
|
|
|
451
|
|
|
452 ngx_uint_t i, n;
|
|
|
453 ngx_http_modern_browser_t *browsers, *opera;
|
|
|
454
|
|
|
455 /*
|
|
|
456 * At the merge the skip field is used to store the browser slot,
|
|
|
457 * it will be used in sorting and then will overwritten
|
|
|
458 * with a real skip value. The zero value means Opera.
|
|
|
459 */
|
|
|
460
|
|
|
461 if (conf->modern_browsers == NULL) {
|
|
|
462 conf->modern_browsers = prev->modern_browsers;
|
|
|
463
|
|
|
464 } else {
|
|
|
465 browsers = conf->modern_browsers->elts;
|
|
|
466
|
|
|
467 for (i = 0; i < conf->modern_browsers->nelts; i++) {
|
|
|
468 if (browsers[i].skip == 0) {
|
|
|
469 goto found;
|
|
|
470 }
|
|
|
471 }
|
|
|
472
|
|
|
473 /*
|
|
|
474 * Opera may contain MSIE string, so if Opera was not enumerated
|
|
|
475 * as modern browsers, then add it and set a unreachable version
|
|
|
476 */
|
|
|
477
|
|
|
478 opera = ngx_array_push(conf->modern_browsers);
|
|
|
479 if (opera == NULL) {
|
|
|
480 return NGX_CONF_ERROR;
|
|
|
481 }
|
|
|
482
|
|
|
483 opera->skip = 0;
|
|
|
484 opera->version = 4001000000U;
|
|
|
485
|
|
|
486 browsers = conf->modern_browsers->elts;
|
|
|
487
|
|
|
488 found:
|
|
|
489
|
|
|
490 ngx_qsort(browsers, (size_t) conf->modern_browsers->nelts,
|
|
|
491 sizeof(ngx_http_modern_browser_t),
|
|
|
492 ngx_http_modern_browser_sort);
|
|
|
493
|
|
|
494 for (i = 0; i < conf->modern_browsers->nelts; i++) {
|
|
|
495 n = browsers[i].skip;
|
|
|
496
|
|
|
497 browsers[i].skip = ngx_http_modern_browser_masks[n].skip;
|
|
|
498 browsers[i].add = ngx_http_modern_browser_masks[n].add;
|
|
|
499 (void) ngx_cpystrn(browsers[i].name,
|
|
|
500 ngx_http_modern_browser_masks[n].name, 12);
|
|
|
501 }
|
|
|
502 }
|
|
|
503
|
|
|
504 if (conf->ancient_browsers == NULL) {
|
|
|
505 conf->ancient_browsers = prev->ancient_browsers;
|
|
|
506 }
|
|
|
507
|
|
|
508 if (conf->modern_browser_value == NULL) {
|
|
|
509 conf->modern_browser_value = prev->modern_browser_value;
|
|
|
510 }
|
|
|
511
|
|
|
512 if (conf->modern_browser_value == NULL) {
|
|
|
513 conf->modern_browser_value = &ngx_http_variable_true_value;
|
|
|
514 }
|
|
|
515
|
|
|
516 if (conf->ancient_browser_value == NULL) {
|
|
|
517 conf->ancient_browser_value = prev->ancient_browser_value;
|
|
|
518 }
|
|
|
519
|
|
|
520 if (conf->ancient_browser_value == NULL) {
|
|
|
521 conf->ancient_browser_value = &ngx_http_variable_true_value;
|
|
|
522 }
|
|
|
523
|
|
|
524 return NGX_CONF_OK;
|
|
|
525 }
|
|
|
526
|
|
|
527
|
|
|
528 static int ngx_libc_cdecl
|
|
|
529 ngx_http_modern_browser_sort(const void *one, const void *two)
|
|
|
530 {
|
|
|
531 ngx_http_modern_browser_t *first = (ngx_http_modern_browser_t *) one;
|
|
|
532 ngx_http_modern_browser_t *second = (ngx_http_modern_browser_t *) two;
|
|
|
533
|
|
|
534 return (first->skip - second->skip);
|
|
|
535 }
|
|
|
536
|
|
|
537
|
|
|
538 static char *
|
|
|
539 ngx_http_modern_browser(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
540 {
|
|
|
541 ngx_http_browser_conf_t *bcf = conf;
|
|
|
542
|
|
|
543 u_char c;
|
|
|
544 ngx_str_t *value;
|
|
|
545 ngx_uint_t i, n, version, ver, scale;
|
|
|
546 ngx_http_modern_browser_t *browser;
|
|
|
547 ngx_http_modern_browser_mask_t *mask;
|
|
|
548
|
|
|
549 value = cf->args->elts;
|
|
|
550
|
|
|
551 if (cf->args->nelts == 2) {
|
|
|
552 if (ngx_strcmp(value[1].data, "unlisted") == 0) {
|
|
|
553 bcf->modern_unlisted_browsers = 1;
|
|
|
554 return NGX_CONF_OK;
|
|
|
555 }
|
|
|
556
|
|
|
557 return NGX_CONF_ERROR;
|
|
|
558 }
|
|
|
559
|
|
|
560 if (bcf->modern_browsers == NULL) {
|
|
|
561 bcf->modern_browsers = ngx_array_create(cf->pool, 5,
|
|
|
562 sizeof(ngx_http_modern_browser_t));
|
|
|
563 if (bcf->modern_browsers == NULL) {
|
|
|
564 return NGX_CONF_ERROR;
|
|
|
565 }
|
|
|
566 }
|
|
|
567
|
|
|
568 browser = ngx_array_push(bcf->modern_browsers);
|
|
|
569 if (browser == NULL) {
|
|
|
570 return NGX_CONF_ERROR;
|
|
|
571 }
|
|
|
572
|
|
|
573 mask = ngx_http_modern_browser_masks;
|
|
|
574
|
|
|
575 for (n = 0; mask[n].browser[0] != '\0'; n++) {
|
|
|
576 if (ngx_strcasecmp(mask[n].browser, value[1].data) == 0) {
|
|
|
577 goto found;
|
|
|
578 }
|
|
|
579 }
|
|
|
580
|
|
|
581 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
582 "unknown browser name \"%V\"", &value[1]);
|
|
|
583
|
|
|
584 return NGX_CONF_ERROR;
|
|
|
585
|
|
|
586 found:
|
|
|
587
|
|
|
588 /*
|
|
|
589 * at this stage the skip field is used to store the browser slot,
|
|
|
590 * it will be used in sorting in merge stage and then will overwritten
|
|
|
591 * with a real value
|
|
|
592 */
|
|
|
593
|
|
|
594 browser->skip = n;
|
|
|
595
|
|
|
596 version = 0;
|
|
|
597 ver = 0;
|
|
|
598 scale = 1000000;
|
|
|
599
|
|
|
600 for (i = 0; i < value[2].len; i++) {
|
|
|
601
|
|
|
602 c = value[2].data[i];
|
|
|
603
|
|
|
604 if (c >= '0' && c <= '9') {
|
|
|
605 ver = ver * 10 + (c - '0');
|
|
|
606 continue;
|
|
|
607 }
|
|
|
608
|
|
|
609 if (c == '.') {
|
|
|
610 version += ver * scale;
|
|
|
611 ver = 0;
|
|
|
612 scale /= 100;
|
|
|
613 continue;
|
|
|
614 }
|
|
|
615
|
|
|
616 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
617 "invalid browser version \"%V\"", &value[2]);
|
|
|
618
|
|
|
619 return NGX_CONF_ERROR;
|
|
|
620 }
|
|
|
621
|
|
|
622 version += ver * scale;
|
|
|
623
|
|
|
624 browser->version = version;
|
|
|
625
|
|
|
626 return NGX_CONF_OK;
|
|
|
627 }
|
|
|
628
|
|
|
629
|
|
|
630 static char *
|
|
|
631 ngx_http_ancient_browser(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
632 {
|
|
|
633 ngx_http_browser_conf_t *bcf = conf;
|
|
|
634
|
|
|
635 ngx_str_t *value, *browser;
|
|
|
636 ngx_uint_t i;
|
|
|
637
|
|
|
638 value = cf->args->elts;
|
|
|
639
|
|
|
640 for (i = 1; i < cf->args->nelts; i++) {
|
|
|
641 if (ngx_strcmp(value[i].data, "netscape4") == 0) {
|
|
|
642 bcf->netscape4 = 1;
|
|
|
643 continue;
|
|
|
644 }
|
|
|
645
|
|
|
646 if (bcf->ancient_browsers == NULL) {
|
|
|
647 bcf->ancient_browsers = ngx_array_create(cf->pool, 4,
|
|
|
648 sizeof(ngx_str_t));
|
|
|
649 if (bcf->ancient_browsers == NULL) {
|
|
|
650 return NGX_CONF_ERROR;
|
|
|
651 }
|
|
|
652 }
|
|
|
653
|
|
|
654 browser = ngx_array_push(bcf->ancient_browsers);
|
|
|
655 if (browser == NULL) {
|
|
|
656 return NGX_CONF_ERROR;
|
|
|
657 }
|
|
|
658
|
|
|
659 *browser = value[i];
|
|
|
660 }
|
|
|
661
|
|
|
662 return NGX_CONF_OK;
|
|
|
663 }
|
|
|
664
|
|
|
665
|
|
|
666 static char *
|
|
|
667 ngx_http_modern_browser_value(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
668 {
|
|
|
669 ngx_http_browser_conf_t *bcf = conf;
|
|
|
670
|
|
|
671 ngx_str_t *value;
|
|
|
672
|
|
|
673 bcf->modern_browser_value = ngx_palloc(cf->pool,
|
|
|
674 sizeof(ngx_http_variable_value_t));
|
|
|
675 if (bcf->modern_browser_value == NULL) {
|
|
|
676 return NGX_CONF_ERROR;
|
|
|
677 }
|
|
|
678
|
|
|
679 value = cf->args->elts;
|
|
|
680
|
|
|
681 bcf->modern_browser_value->len = value[1].len;
|
|
|
682 bcf->modern_browser_value->valid = 1;
|
|
340
|
683 bcf->modern_browser_value->no_cacheable = 0;
|
|
236
|
684 bcf->modern_browser_value->not_found = 0;
|
|
|
685 bcf->modern_browser_value->data = value[1].data;
|
|
|
686
|
|
|
687 return NGX_CONF_OK;
|
|
|
688 }
|
|
|
689
|
|
|
690
|
|
|
691 static char *
|
|
|
692 ngx_http_ancient_browser_value(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
693 {
|
|
|
694 ngx_http_browser_conf_t *bcf = conf;
|
|
|
695
|
|
|
696 ngx_str_t *value;
|
|
|
697
|
|
|
698 bcf->ancient_browser_value = ngx_palloc(cf->pool,
|
|
|
699 sizeof(ngx_http_variable_value_t));
|
|
|
700 if (bcf->ancient_browser_value == NULL) {
|
|
|
701 return NGX_CONF_ERROR;
|
|
|
702 }
|
|
|
703
|
|
|
704 value = cf->args->elts;
|
|
|
705
|
|
|
706 bcf->ancient_browser_value->len = value[1].len;
|
|
|
707 bcf->ancient_browser_value->valid = 1;
|
|
340
|
708 bcf->ancient_browser_value->no_cacheable = 0;
|
|
236
|
709 bcf->ancient_browser_value->not_found = 0;
|
|
|
710 bcf->ancient_browser_value->data = value[1].data;
|
|
|
711
|
|
|
712 return NGX_CONF_OK;
|
|
|
713 }
|
