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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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4 */
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5
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6
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7 #include <ngx_config.h>
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8 #include <ngx_core.h>
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9 #include <ngx_http.h>
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10
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11
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12 /*
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13 * The module can check browser versions conforming to the following formats:
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14 * X, X.X, X.X.X, and X.X.X.X. The maximum values of each format may be
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15 * 4000, 4000.99, 4000.99.99, and 4000.99.99.99.
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16 */
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17
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18
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19 #define NGX_HTTP_MODERN_BROWSER 0
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20 #define NGX_HTTP_ANCIENT_BROWSER 1
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21
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22
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23 typedef struct {
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24 u_char browser[12];
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25 size_t skip;
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26 size_t add;
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27 u_char name[12];
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28 } ngx_http_modern_browser_mask_t;
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29
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30
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31 typedef struct {
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32 ngx_uint_t version;
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33 size_t skip;
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34 size_t add;
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35 u_char name[12];
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36 } ngx_http_modern_browser_t;
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37
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38
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39 typedef struct {
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40 ngx_str_t name;
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41 ngx_http_get_variable_pt handler;
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42 uintptr_t data;
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43 } ngx_http_browser_variable_t;
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44
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45
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46 typedef struct {
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47 ngx_array_t *modern_browsers;
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48 ngx_array_t *ancient_browsers;
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49 ngx_http_variable_value_t *modern_browser_value;
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50 ngx_http_variable_value_t *ancient_browser_value;
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51
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52 unsigned modern_unlisted_browsers:1;
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53 unsigned netscape4:1;
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54 } ngx_http_browser_conf_t;
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55
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56
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57 static ngx_int_t ngx_http_msie_variable(ngx_http_request_t *r,
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58 ngx_http_variable_value_t *v, uintptr_t data);
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59 static ngx_int_t ngx_http_browser_variable(ngx_http_request_t *r,
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60 ngx_http_variable_value_t *v, uintptr_t data);
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61
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62 static ngx_uint_t ngx_http_browser(ngx_http_request_t *r,
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63 ngx_http_browser_conf_t *cf);
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244
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64
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236
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65 static ngx_int_t ngx_http_browser_add_variable(ngx_conf_t *cf);
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66 static void *ngx_http_browser_create_conf(ngx_conf_t *cf);
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67 static char *ngx_http_browser_merge_conf(ngx_conf_t *cf, void *parent,
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68 void *child);
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69 static int ngx_libc_cdecl ngx_http_modern_browser_sort(const void *one,
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70 const void *two);
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71 static char *ngx_http_modern_browser(ngx_conf_t *cf, ngx_command_t *cmd,
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72 void *conf);
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73 static char *ngx_http_ancient_browser(ngx_conf_t *cf, ngx_command_t *cmd,
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74 void *conf);
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75 static char *ngx_http_modern_browser_value(ngx_conf_t *cf, ngx_command_t *cmd,
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76 void *conf);
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77 static char *ngx_http_ancient_browser_value(ngx_conf_t *cf, ngx_command_t *cmd,
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78 void *conf);
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79
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80
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81 static ngx_command_t ngx_http_browser_commands[] = {
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82
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83 { ngx_string("modern_browser"),
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84 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE12,
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85 ngx_http_modern_browser,
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86 NGX_HTTP_LOC_CONF_OFFSET,
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87 0,
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88 NULL },
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89
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90 { ngx_string("ancient_browser"),
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91 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE,
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92 ngx_http_ancient_browser,
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93 NGX_HTTP_LOC_CONF_OFFSET,
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94 0,
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95 NULL },
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96
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97 { ngx_string("modern_browser_value"),
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98 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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99 ngx_http_modern_browser_value,
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100 NGX_HTTP_LOC_CONF_OFFSET,
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101 0,
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102 NULL },
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103
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104 { ngx_string("ancient_browser_value"),
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105 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1,
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106 ngx_http_ancient_browser_value,
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107 NGX_HTTP_LOC_CONF_OFFSET,
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108 0,
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109 NULL },
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110
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111 ngx_null_command
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112 };
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113
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114
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115 static ngx_http_module_t ngx_http_browser_module_ctx = {
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116 ngx_http_browser_add_variable, /* preconfiguration */
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117 NULL, /* postconfiguration */
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118
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119 NULL, /* create main configuration */
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120 NULL, /* init main configuration */
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121
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122 NULL, /* create server configuration */
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123 NULL, /* merge server configuration */
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124
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125 ngx_http_browser_create_conf, /* create location configuration */
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126 ngx_http_browser_merge_conf /* merge location configuration */
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127 };
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128
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129
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130 ngx_module_t ngx_http_browser_module = {
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131 NGX_MODULE_V1,
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132 &ngx_http_browser_module_ctx, /* module context */
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133 ngx_http_browser_commands, /* module directives */
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134 NGX_HTTP_MODULE, /* module type */
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135 NULL, /* init master */
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136 NULL, /* init module */
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137 NULL, /* init process */
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138 NULL, /* init thread */
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139 NULL, /* exit thread */
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140 NULL, /* exit process */
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141 NULL, /* exit master */
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142 NGX_MODULE_V1_PADDING
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143 };
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144
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145
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146 static ngx_http_modern_browser_mask_t ngx_http_modern_browser_masks[] = {
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147
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148 /* Opera must be the first browser to check */
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149
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150 /*
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151 * "Opera/7.50 (X11; FreeBSD i386; U) [en]"
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152 * "Mozilla/5.0 (X11; FreeBSD i386; U) Opera 7.50 [en]"
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153 * "Mozilla/4.0 (compatible; MSIE 6.0; X11; FreeBSD i386) Opera 7.50 [en]"
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154 * "Opera/8.0 (Windows NT 5.1; U; ru)"
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155 * "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.0; en) Opera 8.0"
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156 * "Opera/9.01 (X11; FreeBSD 6 i386; U; en)"
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157 */
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158
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159 { "opera",
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160 0,
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161 sizeof("Opera ") - 1,
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162 "Opera"},
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163
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164 /* "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1)" */
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165
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166 { "msie",
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167 sizeof("Mozilla/4.0 (compatible; ") - 1,
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168 sizeof("MSIE ") - 1,
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169 "MSIE "},
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170
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171 /*
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172 * "Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.0.0) Gecko/20020610"
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173 * "Mozilla/5.0 (Windows; U; Windows NT 5.1; ru-RU; rv:1.5) Gecko/20031006"
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174 * "Mozilla/5.0 (Windows; U; Windows NT 5.1; ru-RU; rv:1.6) Gecko/20040206
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175 * Firefox/0.8"
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176 * "Mozilla/5.0 (Windows; U; Windows NT 5.1; ru-RU; rv:1.7.8)
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177 * Gecko/20050511 Firefox/1.0.4"
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178 * "Mozilla/5.0 (X11; U; FreeBSD i386; en-US; rv:1.8.0.5) Gecko/20060729
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179 * Firefox/1.5.0.5"
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180 */
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181
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182 { "gecko",
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183 sizeof("Mozilla/5.0 (") - 1,
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184 sizeof("rv:") - 1,
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185 "rv:"},
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186
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187 /*
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188 * "Mozilla/5.0 (Macintosh; U; PPC Mac OS X; ru-ru) AppleWebKit/125.2
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189 * (KHTML, like Gecko) Safari/125.7"
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190 * "Mozilla/5.0 (SymbianOS/9.1; U; en-us) AppleWebKit/413
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191 * (KHTML, like Gecko) Safari/413"
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192 * "Mozilla/5.0 (Macintosh; U; PPC Mac OS X; en) AppleWebKit/418
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193 * (KHTML, like Gecko) Safari/417.9.3"
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194 * "Mozilla/5.0 (Macintosh; U; PPC Mac OS X; ru-ru) AppleWebKit/418.8
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195 * (KHTML, like Gecko) Safari/419.3"
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196 */
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197
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198 { "safari",
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199 sizeof("Mozilla/5.0 (") - 1,
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200 sizeof("Safari/") - 1,
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201 "Safari/"},
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202
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203 /*
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204 * "Mozilla/5.0 (compatible; Konqueror/3.1; Linux)"
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205 * "Mozilla/5.0 (compatible; Konqueror/3.4; Linux) KHTML/3.4.2 (like Gecko)"
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206 * "Mozilla/5.0 (compatible; Konqueror/3.5; FreeBSD) KHTML/3.5.1
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207 * (like Gecko)"
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208 */
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209
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210 { "konqueror",
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211 sizeof("Mozilla/5.0 (compatible; ") - 1,
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212 sizeof("Konqueror/") - 1,
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213 "Konqueror/"},
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214
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215 { "", 0, 0, "" }
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216
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217 };
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218
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219
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220 static ngx_http_browser_variable_t ngx_http_browsers[] = {
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221 { ngx_string("msie"), ngx_http_msie_variable, 0 },
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222 { ngx_string("modern_browser"), ngx_http_browser_variable,
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223 NGX_HTTP_MODERN_BROWSER },
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224 { ngx_string("ancient_browser"), ngx_http_browser_variable,
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225 NGX_HTTP_ANCIENT_BROWSER },
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226 { ngx_null_string, NULL, 0 }
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227 };
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228
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229
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230 static ngx_int_t
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231 ngx_http_browser_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
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232 uintptr_t data)
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233 {
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234 ngx_uint_t rc;
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235 ngx_http_browser_conf_t *cf;
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236
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237 cf = ngx_http_get_module_loc_conf(r, ngx_http_browser_module);
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238
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239 rc = ngx_http_browser(r, cf);
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240
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241 if (data == NGX_HTTP_MODERN_BROWSER && rc == NGX_HTTP_MODERN_BROWSER) {
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242 *v = *cf->modern_browser_value;
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243 return NGX_OK;
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244 }
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245
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246 if (data == NGX_HTTP_ANCIENT_BROWSER && rc == NGX_HTTP_ANCIENT_BROWSER) {
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247 *v = *cf->ancient_browser_value;
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248 return NGX_OK;
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249 }
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250
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251 *v = ngx_http_variable_null_value;
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252 return NGX_OK;
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253 }
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254
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255
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256 static ngx_uint_t
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257 ngx_http_browser(ngx_http_request_t *r, ngx_http_browser_conf_t *cf)
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258 {
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259 size_t len;
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260 u_char *name, *ua, *last, c;
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261 ngx_str_t *ancient;
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262 ngx_uint_t i, version, ver, scale;
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263 ngx_http_modern_browser_t *modern;
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264
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265 if (r->headers_in.user_agent == NULL) {
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266 if (cf->modern_unlisted_browsers) {
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267 return NGX_HTTP_MODERN_BROWSER;
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268 }
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269
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270 return NGX_HTTP_ANCIENT_BROWSER;
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271 }
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272
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273 ua = r->headers_in.user_agent->value.data;
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274 len = r->headers_in.user_agent->value.len;
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275 last = ua + len;
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276
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277 if (cf->modern_browsers) {
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278 modern = cf->modern_browsers->elts;
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279
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280 for (i = 0; i < cf->modern_browsers->nelts; i++) {
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281 name = ua + modern[i].skip;
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282
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283 if (name >= last) {
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284 continue;
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285 }
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286
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287 name = (u_char *) ngx_strstr(name, modern[i].name);
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288
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289 if (name == NULL) {
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290 continue;
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291 }
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292
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293 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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294 "browser: \"%s\"", name);
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295
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296 name += modern[i].add;
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297
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298 if (name >= last) {
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299 continue;
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300 }
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301
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302 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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303 "version: \"%ui\" \"%s\"", modern[i].version, name);
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304
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305 version = 0;
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306 ver = 0;
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307 scale = 1000000;
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308
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309 while (name < last) {
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310
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311 c = *name++;
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312
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313 if (c >= '0' && c <= '9') {
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314 ver = ver * 10 + (c - '0');
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315 continue;
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316 }
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317
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318 if (c == '.') {
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319 version += ver * scale;
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320
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448
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321 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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322 "version: \"%ui\" \"%ui\"",
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323 modern[i].version, version);
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324
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236
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325 if (version > modern[i].version) {
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326 return NGX_HTTP_MODERN_BROWSER;
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327 }
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328
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329 ver = 0;
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330 scale /= 100;
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331 continue;
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332 }
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333
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334 break;
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335 }
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336
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337 version += ver * scale;
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338
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339 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0,
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340 "version: \"%ui\" \"%ui\"",
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341 modern[i].version, version);
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342
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343 if (version >= modern[i].version) {
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344 return NGX_HTTP_MODERN_BROWSER;
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345 }
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448
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346
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347 return NGX_HTTP_ANCIENT_BROWSER;
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236
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348 }
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349
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350 if (!cf->modern_unlisted_browsers) {
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351 return NGX_HTTP_ANCIENT_BROWSER;
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352 }
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353 }
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354
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355 if (cf->netscape4) {
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356 if (len > sizeof("Mozilla/4.72 ") - 1
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357 && ngx_strncmp(ua, "Mozilla/", sizeof("Mozilla/") - 1) == 0
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358 && ua[8] > '0' && ua[8] < '5')
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359 {
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360 return NGX_HTTP_ANCIENT_BROWSER;
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361 }
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362 }
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363
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364 if (cf->ancient_browsers) {
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365 ancient = cf->ancient_browsers->elts;
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366
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367 for (i = 0; i < cf->ancient_browsers->nelts; i++) {
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368 if (len >= ancient[i].len
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369 && ngx_strstr(ua, ancient[i].data) != NULL)
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370 {
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371 return NGX_HTTP_ANCIENT_BROWSER;
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372 }
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373 }
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374 }
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375
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376 if (cf->modern_unlisted_browsers) {
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377 return NGX_HTTP_MODERN_BROWSER;
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378 }
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379
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380 return NGX_HTTP_ANCIENT_BROWSER;
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381 }
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382
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383
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384 static ngx_int_t
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385 ngx_http_msie_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v,
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386 uintptr_t data)
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387 {
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388 if (r->headers_in.msie) {
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389 *v = ngx_http_variable_true_value;
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390 return NGX_OK;
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|
391 }
|
|
|
392
|
|
|
393 *v = ngx_http_variable_null_value;
|
|
|
394 return NGX_OK;
|
|
|
395 }
|
|
|
396
|
|
|
397
|
|
|
398 static ngx_int_t
|
|
|
399 ngx_http_browser_add_variable(ngx_conf_t *cf)
|
|
|
400 {
|
|
|
401 ngx_http_browser_variable_t *var;
|
|
|
402 ngx_http_variable_t *v;
|
|
|
403
|
|
|
404 for (var = ngx_http_browsers; var->name.len; var++) {
|
|
|
405
|
|
340
|
406 v = ngx_http_add_variable(cf, &var->name, NGX_HTTP_VAR_CHANGEABLE);
|
|
236
|
407 if (v == NULL) {
|
|
|
408 return NGX_ERROR;
|
|
|
409 }
|
|
|
410
|
|
|
411 v->get_handler = var->handler;
|
|
|
412 v->data = var->data;
|
|
|
413 }
|
|
|
414
|
|
|
415 return NGX_OK;
|
|
|
416 }
|
|
|
417
|
|
|
418
|
|
|
419 static void *
|
|
|
420 ngx_http_browser_create_conf(ngx_conf_t *cf)
|
|
|
421 {
|
|
|
422 ngx_http_browser_conf_t *conf;
|
|
|
423
|
|
|
424 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_browser_conf_t));
|
|
|
425 if (conf == NULL) {
|
|
496
|
426 return NULL;
|
|
236
|
427 }
|
|
|
428
|
|
|
429 /*
|
|
|
430 * set by ngx_pcalloc():
|
|
|
431 *
|
|
|
432 * conf->modern_browsers = NULL;
|
|
|
433 * conf->ancient_browsers = NULL;
|
|
|
434 * conf->modern_browser_value = NULL;
|
|
|
435 * conf->ancient_browser_value = NULL;
|
|
|
436 *
|
|
|
437 * conf->modern_unlisted_browsers = 0;
|
|
|
438 * conf->netscape4 = 0;
|
|
|
439 */
|
|
|
440
|
|
|
441 return conf;
|
|
|
442 }
|
|
|
443
|
|
|
444
|
|
|
445 static char *
|
|
|
446 ngx_http_browser_merge_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
447 {
|
|
|
448 ngx_http_browser_conf_t *prev = parent;
|
|
|
449 ngx_http_browser_conf_t *conf = child;
|
|
|
450
|
|
|
451 ngx_uint_t i, n;
|
|
|
452 ngx_http_modern_browser_t *browsers, *opera;
|
|
|
453
|
|
|
454 /*
|
|
|
455 * At the merge the skip field is used to store the browser slot,
|
|
|
456 * it will be used in sorting and then will overwritten
|
|
|
457 * with a real skip value. The zero value means Opera.
|
|
|
458 */
|
|
|
459
|
|
|
460 if (conf->modern_browsers == NULL) {
|
|
|
461 conf->modern_browsers = prev->modern_browsers;
|
|
|
462
|
|
|
463 } else {
|
|
|
464 browsers = conf->modern_browsers->elts;
|
|
|
465
|
|
|
466 for (i = 0; i < conf->modern_browsers->nelts; i++) {
|
|
|
467 if (browsers[i].skip == 0) {
|
|
|
468 goto found;
|
|
|
469 }
|
|
|
470 }
|
|
|
471
|
|
|
472 /*
|
|
|
473 * Opera may contain MSIE string, so if Opera was not enumerated
|
|
|
474 * as modern browsers, then add it and set a unreachable version
|
|
|
475 */
|
|
|
476
|
|
|
477 opera = ngx_array_push(conf->modern_browsers);
|
|
|
478 if (opera == NULL) {
|
|
|
479 return NGX_CONF_ERROR;
|
|
|
480 }
|
|
|
481
|
|
|
482 opera->skip = 0;
|
|
|
483 opera->version = 4001000000U;
|
|
|
484
|
|
|
485 browsers = conf->modern_browsers->elts;
|
|
|
486
|
|
|
487 found:
|
|
|
488
|
|
|
489 ngx_qsort(browsers, (size_t) conf->modern_browsers->nelts,
|
|
|
490 sizeof(ngx_http_modern_browser_t),
|
|
|
491 ngx_http_modern_browser_sort);
|
|
|
492
|
|
|
493 for (i = 0; i < conf->modern_browsers->nelts; i++) {
|
|
|
494 n = browsers[i].skip;
|
|
|
495
|
|
|
496 browsers[i].skip = ngx_http_modern_browser_masks[n].skip;
|
|
|
497 browsers[i].add = ngx_http_modern_browser_masks[n].add;
|
|
|
498 (void) ngx_cpystrn(browsers[i].name,
|
|
|
499 ngx_http_modern_browser_masks[n].name, 12);
|
|
|
500 }
|
|
|
501 }
|
|
|
502
|
|
|
503 if (conf->ancient_browsers == NULL) {
|
|
|
504 conf->ancient_browsers = prev->ancient_browsers;
|
|
|
505 }
|
|
|
506
|
|
|
507 if (conf->modern_browser_value == NULL) {
|
|
|
508 conf->modern_browser_value = prev->modern_browser_value;
|
|
|
509 }
|
|
|
510
|
|
|
511 if (conf->modern_browser_value == NULL) {
|
|
|
512 conf->modern_browser_value = &ngx_http_variable_true_value;
|
|
|
513 }
|
|
|
514
|
|
|
515 if (conf->ancient_browser_value == NULL) {
|
|
|
516 conf->ancient_browser_value = prev->ancient_browser_value;
|
|
|
517 }
|
|
|
518
|
|
|
519 if (conf->ancient_browser_value == NULL) {
|
|
|
520 conf->ancient_browser_value = &ngx_http_variable_true_value;
|
|
|
521 }
|
|
|
522
|
|
|
523 return NGX_CONF_OK;
|
|
|
524 }
|
|
|
525
|
|
|
526
|
|
|
527 static int ngx_libc_cdecl
|
|
|
528 ngx_http_modern_browser_sort(const void *one, const void *two)
|
|
|
529 {
|
|
|
530 ngx_http_modern_browser_t *first = (ngx_http_modern_browser_t *) one;
|
|
|
531 ngx_http_modern_browser_t *second = (ngx_http_modern_browser_t *) two;
|
|
|
532
|
|
|
533 return (first->skip - second->skip);
|
|
|
534 }
|
|
|
535
|
|
|
536
|
|
|
537 static char *
|
|
|
538 ngx_http_modern_browser(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
539 {
|
|
|
540 ngx_http_browser_conf_t *bcf = conf;
|
|
|
541
|
|
|
542 u_char c;
|
|
|
543 ngx_str_t *value;
|
|
|
544 ngx_uint_t i, n, version, ver, scale;
|
|
|
545 ngx_http_modern_browser_t *browser;
|
|
|
546 ngx_http_modern_browser_mask_t *mask;
|
|
|
547
|
|
|
548 value = cf->args->elts;
|
|
|
549
|
|
|
550 if (cf->args->nelts == 2) {
|
|
|
551 if (ngx_strcmp(value[1].data, "unlisted") == 0) {
|
|
|
552 bcf->modern_unlisted_browsers = 1;
|
|
|
553 return NGX_CONF_OK;
|
|
|
554 }
|
|
|
555
|
|
|
556 return NGX_CONF_ERROR;
|
|
|
557 }
|
|
|
558
|
|
|
559 if (bcf->modern_browsers == NULL) {
|
|
|
560 bcf->modern_browsers = ngx_array_create(cf->pool, 5,
|
|
|
561 sizeof(ngx_http_modern_browser_t));
|
|
|
562 if (bcf->modern_browsers == NULL) {
|
|
|
563 return NGX_CONF_ERROR;
|
|
|
564 }
|
|
|
565 }
|
|
|
566
|
|
|
567 browser = ngx_array_push(bcf->modern_browsers);
|
|
|
568 if (browser == NULL) {
|
|
|
569 return NGX_CONF_ERROR;
|
|
|
570 }
|
|
|
571
|
|
|
572 mask = ngx_http_modern_browser_masks;
|
|
|
573
|
|
|
574 for (n = 0; mask[n].browser[0] != '\0'; n++) {
|
|
|
575 if (ngx_strcasecmp(mask[n].browser, value[1].data) == 0) {
|
|
|
576 goto found;
|
|
|
577 }
|
|
|
578 }
|
|
|
579
|
|
|
580 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
581 "unknown browser name \"%V\"", &value[1]);
|
|
|
582
|
|
|
583 return NGX_CONF_ERROR;
|
|
|
584
|
|
|
585 found:
|
|
|
586
|
|
|
587 /*
|
|
|
588 * at this stage the skip field is used to store the browser slot,
|
|
|
589 * it will be used in sorting in merge stage and then will overwritten
|
|
|
590 * with a real value
|
|
|
591 */
|
|
|
592
|
|
|
593 browser->skip = n;
|
|
|
594
|
|
|
595 version = 0;
|
|
|
596 ver = 0;
|
|
|
597 scale = 1000000;
|
|
|
598
|
|
|
599 for (i = 0; i < value[2].len; i++) {
|
|
|
600
|
|
|
601 c = value[2].data[i];
|
|
|
602
|
|
|
603 if (c >= '0' && c <= '9') {
|
|
|
604 ver = ver * 10 + (c - '0');
|
|
|
605 continue;
|
|
|
606 }
|
|
|
607
|
|
|
608 if (c == '.') {
|
|
|
609 version += ver * scale;
|
|
|
610 ver = 0;
|
|
|
611 scale /= 100;
|
|
|
612 continue;
|
|
|
613 }
|
|
|
614
|
|
|
615 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
616 "invalid browser version \"%V\"", &value[2]);
|
|
|
617
|
|
|
618 return NGX_CONF_ERROR;
|
|
|
619 }
|
|
|
620
|
|
|
621 version += ver * scale;
|
|
|
622
|
|
|
623 browser->version = version;
|
|
|
624
|
|
|
625 return NGX_CONF_OK;
|
|
|
626 }
|
|
|
627
|
|
|
628
|
|
|
629 static char *
|
|
|
630 ngx_http_ancient_browser(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
631 {
|
|
|
632 ngx_http_browser_conf_t *bcf = conf;
|
|
|
633
|
|
|
634 ngx_str_t *value, *browser;
|
|
|
635 ngx_uint_t i;
|
|
|
636
|
|
|
637 value = cf->args->elts;
|
|
|
638
|
|
|
639 for (i = 1; i < cf->args->nelts; i++) {
|
|
|
640 if (ngx_strcmp(value[i].data, "netscape4") == 0) {
|
|
|
641 bcf->netscape4 = 1;
|
|
|
642 continue;
|
|
|
643 }
|
|
|
644
|
|
|
645 if (bcf->ancient_browsers == NULL) {
|
|
|
646 bcf->ancient_browsers = ngx_array_create(cf->pool, 4,
|
|
|
647 sizeof(ngx_str_t));
|
|
|
648 if (bcf->ancient_browsers == NULL) {
|
|
|
649 return NGX_CONF_ERROR;
|
|
|
650 }
|
|
|
651 }
|
|
|
652
|
|
|
653 browser = ngx_array_push(bcf->ancient_browsers);
|
|
|
654 if (browser == NULL) {
|
|
|
655 return NGX_CONF_ERROR;
|
|
|
656 }
|
|
|
657
|
|
|
658 *browser = value[i];
|
|
|
659 }
|
|
|
660
|
|
|
661 return NGX_CONF_OK;
|
|
|
662 }
|
|
|
663
|
|
|
664
|
|
|
665 static char *
|
|
|
666 ngx_http_modern_browser_value(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
667 {
|
|
|
668 ngx_http_browser_conf_t *bcf = conf;
|
|
|
669
|
|
|
670 ngx_str_t *value;
|
|
|
671
|
|
|
672 bcf->modern_browser_value = ngx_palloc(cf->pool,
|
|
|
673 sizeof(ngx_http_variable_value_t));
|
|
|
674 if (bcf->modern_browser_value == NULL) {
|
|
|
675 return NGX_CONF_ERROR;
|
|
|
676 }
|
|
|
677
|
|
|
678 value = cf->args->elts;
|
|
|
679
|
|
|
680 bcf->modern_browser_value->len = value[1].len;
|
|
|
681 bcf->modern_browser_value->valid = 1;
|
|
340
|
682 bcf->modern_browser_value->no_cacheable = 0;
|
|
236
|
683 bcf->modern_browser_value->not_found = 0;
|
|
|
684 bcf->modern_browser_value->data = value[1].data;
|
|
|
685
|
|
|
686 return NGX_CONF_OK;
|
|
|
687 }
|
|
|
688
|
|
|
689
|
|
|
690 static char *
|
|
|
691 ngx_http_ancient_browser_value(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
692 {
|
|
|
693 ngx_http_browser_conf_t *bcf = conf;
|
|
|
694
|
|
|
695 ngx_str_t *value;
|
|
|
696
|
|
|
697 bcf->ancient_browser_value = ngx_palloc(cf->pool,
|
|
|
698 sizeof(ngx_http_variable_value_t));
|
|
|
699 if (bcf->ancient_browser_value == NULL) {
|
|
|
700 return NGX_CONF_ERROR;
|
|
|
701 }
|
|
|
702
|
|
|
703 value = cf->args->elts;
|
|
|
704
|
|
|
705 bcf->ancient_browser_value->len = value[1].len;
|
|
|
706 bcf->ancient_browser_value->valid = 1;
|
|
340
|
707 bcf->ancient_browser_value->no_cacheable = 0;
|
|
236
|
708 bcf->ancient_browser_value->not_found = 0;
|
|
|
709 bcf->ancient_browser_value->data = value[1].data;
|
|
|
710
|
|
|
711 return NGX_CONF_OK;
|
|
|
712 }
|
