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50
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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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78
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12 #define NGX_HTTP_NO_CHARSET -2
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13
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14
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50
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15 typedef struct {
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184
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16 u_char **tables;
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17 ngx_str_t name;
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72
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18
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184
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19 ngx_uint_t utf8; /* unsigned utf8:1; */
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50
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20 } ngx_http_charset_t;
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21
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22
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23 typedef struct {
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184
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24 ngx_int_t src;
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25 ngx_int_t dst;
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78
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26 } ngx_http_charset_recode_t;
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27
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28
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29 typedef struct {
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184
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30 ngx_int_t src;
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31 ngx_int_t dst;
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32 u_char *src2dst;
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33 u_char *dst2src;
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50
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34 } ngx_http_charset_tables_t;
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35
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36
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37 typedef struct {
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184
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38 ngx_array_t charsets; /* ngx_http_charset_t */
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39 ngx_array_t tables; /* ngx_http_charset_tables_t */
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40 ngx_array_t recodes; /* ngx_http_charset_recode_t */
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50
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41 } ngx_http_charset_main_conf_t;
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42
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43
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44 typedef struct {
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184
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45 ngx_int_t charset;
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46 ngx_int_t source_charset;
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47 ngx_flag_t override_charset;
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50
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48 } ngx_http_charset_loc_conf_t;
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49
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50
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51 typedef struct {
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184
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52 u_char *table;
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53 ngx_int_t charset;
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50
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54 } ngx_http_charset_ctx_t;
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55
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56
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184
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57 static ngx_uint_t ngx_http_charset_recode(ngx_buf_t *b, u_char *table);
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50
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58
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59 static char *ngx_charset_map_block(ngx_conf_t *cf, ngx_command_t *cmd,
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60 void *conf);
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61 static char *ngx_charset_map(ngx_conf_t *cf, ngx_command_t *dummy, void *conf);
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62
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63 static char *ngx_http_set_charset_slot(ngx_conf_t *cf, ngx_command_t *cmd,
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64 void *conf);
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65 static ngx_int_t ngx_http_add_charset(ngx_array_t *charsets, ngx_str_t *name);
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66
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67 static ngx_int_t ngx_http_charset_filter_init(ngx_cycle_t *cycle);
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68
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69 static void *ngx_http_charset_create_main_conf(ngx_conf_t *cf);
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70 static void *ngx_http_charset_create_loc_conf(ngx_conf_t *cf);
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71 static char *ngx_http_charset_merge_loc_conf(ngx_conf_t *cf,
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72 void *parent, void *child);
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78
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73 static ngx_int_t ngx_http_charset_postconfiguration(ngx_conf_t *cf);
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50
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74
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75
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76 static ngx_command_t ngx_http_charset_filter_commands[] = {
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77
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78
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78 { ngx_string("charset"),
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108
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79 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF
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80 |NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1,
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78
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81 ngx_http_set_charset_slot,
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82 NGX_HTTP_LOC_CONF_OFFSET,
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83 offsetof(ngx_http_charset_loc_conf_t, charset),
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84 NULL },
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85
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86 { ngx_string("source_charset"),
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108
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87 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF
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88 |NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1,
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78
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89 ngx_http_set_charset_slot,
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90 NGX_HTTP_LOC_CONF_OFFSET,
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91 offsetof(ngx_http_charset_loc_conf_t, source_charset),
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92 NULL },
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93
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184
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94 { ngx_string("override_charset"),
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95 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF
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96 |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG,
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97 ngx_conf_set_flag_slot,
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98 NGX_HTTP_LOC_CONF_OFFSET,
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99 offsetof(ngx_http_charset_loc_conf_t, override_charset),
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100 NULL },
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101
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50
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102 { ngx_string("charset_map"),
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103 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE2,
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104 ngx_charset_map_block,
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105 NGX_HTTP_MAIN_CONF_OFFSET,
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106 0,
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107 NULL },
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108
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109 ngx_null_command
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110 };
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111
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112
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113 static ngx_http_module_t ngx_http_charset_filter_module_ctx = {
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58
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114 NULL, /* preconfiguration */
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78
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115 ngx_http_charset_postconfiguration, /* postconfiguration */
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116
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117 ngx_http_charset_create_main_conf, /* create main configuration */
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78
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118 NULL, /* init main configuration */
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119
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120 NULL, /* create server configuration */
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121 NULL, /* merge server configuration */
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122
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123 ngx_http_charset_create_loc_conf, /* create location configuration */
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124 ngx_http_charset_merge_loc_conf /* merge location configuration */
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125 };
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126
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127
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128 ngx_module_t ngx_http_charset_filter_module = {
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58
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129 NGX_MODULE_V1,
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130 &ngx_http_charset_filter_module_ctx, /* module context */
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131 ngx_http_charset_filter_commands, /* module directives */
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132 NGX_HTTP_MODULE, /* module type */
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90
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133 NULL, /* init master */
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134 ngx_http_charset_filter_init, /* init module */
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90
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135 NULL, /* init process */
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136 NULL, /* init thread */
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137 NULL, /* exit thread */
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138 NULL, /* exit process */
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139 NULL, /* exit master */
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140 NGX_MODULE_V1_PADDING
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50
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141 };
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142
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143
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144 static ngx_http_output_header_filter_pt ngx_http_next_header_filter;
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145 static ngx_http_output_body_filter_pt ngx_http_next_body_filter;
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146
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147
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148 static ngx_int_t
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149 ngx_http_charset_header_filter(ngx_http_request_t *r)
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150 {
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184
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151 size_t len;
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152 u_char *p;
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153 ngx_int_t charset, source_charset;
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154 ngx_uint_t i;
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50
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155 ngx_http_charset_t *charsets;
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156 ngx_http_charset_ctx_t *ctx;
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157 ngx_http_charset_loc_conf_t *lcf;
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158 ngx_http_charset_main_conf_t *mcf;
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159
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160 mcf = ngx_http_get_module_main_conf(r, ngx_http_charset_filter_module);
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184
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161
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162 ctx = ngx_http_get_module_ctx(r->main, ngx_http_charset_filter_module);
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50
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163
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184
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164 if (ctx == NULL) {
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165 lcf = ngx_http_get_module_loc_conf(r->main,
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166 ngx_http_charset_filter_module);
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167 charset = lcf->charset;
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168
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169 if (charset == NGX_HTTP_NO_CHARSET) {
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170 return ngx_http_next_header_filter(r);
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171 }
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172
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173 } else {
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174 charset = ctx->charset;
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175 }
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176
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58
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177 if (r->headers_out.content_type.len == 0) {
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178 return ngx_http_next_header_filter(r);
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179 }
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180
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58
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181 if (ngx_strncasecmp(r->headers_out.content_type.data, "text/", 5) != 0
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182 && ngx_strncasecmp(r->headers_out.content_type.data,
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183 "application/x-javascript", 24) != 0)
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50
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184 {
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185 return ngx_http_next_header_filter(r);
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186 }
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187
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184
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188 charsets = mcf->charsets.elts;
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189
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190 lcf = ngx_http_get_module_loc_conf(r, ngx_http_charset_filter_module);
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191
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192 len = 0;
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193
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194 for (p = r->headers_out.content_type.data; *p; p++) {
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195 if (*p == ';') {
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196 len = p - r->headers_out.content_type.data;
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197 }
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198
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199 if (ngx_strncasecmp(p, "charset=", 8) != 0) {
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200 continue;
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201 }
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202
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203 p += 8;
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204
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205 for (i = 0; i < mcf->charsets.nelts; i++) {
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206
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207 if (ngx_strcasecmp(p, charsets[i].name.data) == 0) {
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208
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209 if (r == r->main && lcf->override_charset == 0) {
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210 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_charset_ctx_t));
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211 if (ctx == NULL) {
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212 return NGX_ERROR;
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213 }
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214
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215 ngx_http_set_ctx(r, ctx, ngx_http_charset_filter_module);
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216
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217 ctx->charset = i;
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218
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219 return ngx_http_next_header_filter(r);
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220 }
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221
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222 if (i != (ngx_uint_t) charset
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223 && (charsets[i].tables == NULL
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224 || charsets[i].tables[charset] == NULL))
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225 {
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226 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0,
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227 "no \"charset_map\" between the charsets "
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228 "\"%V\" and \"%V\"",
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229 &charsets[i].name, &charsets[charset].name);
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230
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231 return ngx_http_next_header_filter(r);
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232 }
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233
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234 r->headers_out.content_type.len = len;
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235
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236 if (r->headers_out.status == NGX_HTTP_MOVED_PERMANENTLY
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237 || r->headers_out.status == NGX_HTTP_MOVED_TEMPORARILY)
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238 {
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239 /*
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240 * do not set charset for the redirect because NN 4.x
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241 * uses this charset instead of the next page charset
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242 */
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243
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244 r->headers_out.charset.len = 0;
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245 return ngx_http_next_header_filter(r);
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246 }
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247
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248 source_charset = i;
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249
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250 goto found;
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251 }
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252 }
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253
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254 return ngx_http_next_header_filter(r);
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255 }
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256
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257 if (r->headers_out.status == NGX_HTTP_MOVED_PERMANENTLY
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258 || r->headers_out.status == NGX_HTTP_MOVED_TEMPORARILY)
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259 {
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260 /*
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184
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261 * do not set charset for the redirect because NN 4.x
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262 * use this charset instead of the next page charset
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263 */
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264
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265 r->headers_out.charset.len = 0;
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266 return ngx_http_next_header_filter(r);
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267 }
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268
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269 if (r->headers_out.charset.len) {
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270 return ngx_http_next_header_filter(r);
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271 }
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272
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184
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273 source_charset = lcf->source_charset;
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274
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275 found:
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276
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184
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277 r->headers_out.charset = charsets[charset].name;
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278 r->utf8 = charsets[charset].utf8;
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279
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280 if (source_charset == NGX_CONF_UNSET || source_charset == charset) {
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281 return ngx_http_next_header_filter(r);
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282 }
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283
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284 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_charset_ctx_t));
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285 if (ctx == NULL) {
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286 return NGX_ERROR;
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287 }
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288
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289 ngx_http_set_ctx(r, ctx, ngx_http_charset_filter_module);
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290
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184
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291 ctx->table = charsets[source_charset].tables[charset];
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292 ctx->charset = charset;
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293
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294 r->filter_need_in_memory = 1;
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295
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296 return ngx_http_next_header_filter(r);
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297 }
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298
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299
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300 static ngx_int_t
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301 ngx_http_charset_body_filter(ngx_http_request_t *r, ngx_chain_t *in)
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302 {
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184
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303 ngx_chain_t *cl;
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304 ngx_http_charset_ctx_t *ctx;
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50
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305
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306 ctx = ngx_http_get_module_ctx(r, ngx_http_charset_filter_module);
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307
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184
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308 if (ctx == NULL || ctx->table == NULL) {
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309 return ngx_http_next_body_filter(r, in);
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310 }
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311
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312 for (cl = in; cl; cl = cl->next) {
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184
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313 (void) ngx_http_charset_recode(cl->buf, ctx->table);
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50
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314 }
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315
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316 return ngx_http_next_body_filter(r, in);
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317 }
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318
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319
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320 static ngx_uint_t
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184
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321 ngx_http_charset_recode(ngx_buf_t *b, u_char *table)
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50
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322 {
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184
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323 u_char *p;
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50
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324
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325 for (p = b->pos; p < b->last; p++) {
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184
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326
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327 if (*p == table[*p]) {
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328 continue;
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50
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329 }
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330
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331 while (p < b->last) {
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332 *p = table[*p];
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333 p++;
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334 }
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335
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336 b->in_file = 0;
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184
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337
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338 return 1;
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50
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339 }
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340
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184
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341 return 0;
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50
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342 }
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343
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344
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345 static char *
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346 ngx_charset_map_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
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347 {
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348 ngx_http_charset_main_conf_t *mcf = conf;
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349
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350 char *rv;
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351 ngx_int_t src, dst;
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352 ngx_uint_t i;
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353 ngx_str_t *value;
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354 ngx_conf_t pvcf;
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355 ngx_http_charset_tables_t *table;
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356
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357 value = cf->args->elts;
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358
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359 src = ngx_http_add_charset(&mcf->charsets, &value[1]);
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360 if (src == NGX_ERROR) {
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361 return NGX_CONF_ERROR;
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362 }
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363
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364 dst = ngx_http_add_charset(&mcf->charsets, &value[2]);
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365 if (dst == NGX_ERROR) {
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366 return NGX_CONF_ERROR;
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367 }
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368
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369 if (src == dst) {
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370 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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371 "\"charset_map\" between the same charsets "
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372 "\"%V\" and \"%V\"", &value[1], &value[2]);
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373 return NGX_CONF_ERROR;
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374 }
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375
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376 table = mcf->tables.elts;
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377 for (i = 0; i < mcf->tables.nelts; i++) {
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378 if ((src == table->src && dst == table->dst)
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379 || (src == table->dst && dst == table->src))
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380 {
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381 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
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382 "duplicate \"charset_map\" between "
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383 "\"%V\" and \"%V\"", &value[1], &value[2]);
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384 return NGX_CONF_ERROR;
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385 }
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386 }
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387
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388 table = ngx_array_push(&mcf->tables);
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389 if (table == NULL) {
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390 return NGX_CONF_ERROR;
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391 }
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392
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393 table->src = src;
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394 table->dst = dst;
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395
|
|
|
396 table->src2dst = ngx_palloc(cf->pool, 256);
|
|
|
397 if (table->src2dst == NULL) {
|
|
|
398 return NGX_CONF_ERROR;
|
|
|
399 }
|
|
|
400
|
|
|
401 table->dst2src = ngx_palloc(cf->pool, 256);
|
|
|
402 if (table->dst2src == NULL) {
|
|
|
403 return NGX_CONF_ERROR;
|
|
|
404 }
|
|
|
405
|
|
|
406 for (i = 0; i < 128; i++) {
|
|
184
|
407 table->src2dst[i] = (u_char) i;
|
|
|
408 table->dst2src[i] = (u_char) i;
|
|
50
|
409 }
|
|
|
410
|
|
|
411 for (/* void */; i < 256; i++) {
|
|
|
412 table->src2dst[i] = '?';
|
|
|
413 table->dst2src[i] = '?';
|
|
|
414 }
|
|
|
415
|
|
|
416 pvcf = *cf;
|
|
|
417 cf->ctx = table;
|
|
|
418 cf->handler = ngx_charset_map;
|
|
|
419 cf->handler_conf = conf;
|
|
|
420
|
|
|
421 rv = ngx_conf_parse(cf, NULL);
|
|
|
422
|
|
|
423 *cf = pvcf;
|
|
|
424
|
|
|
425 return rv;
|
|
|
426 }
|
|
|
427
|
|
|
428
|
|
|
429 static char *
|
|
|
430 ngx_charset_map(ngx_conf_t *cf, ngx_command_t *dummy, void *conf)
|
|
|
431 {
|
|
|
432 ngx_int_t src, dst;
|
|
|
433 ngx_str_t *value;
|
|
|
434 ngx_http_charset_tables_t *table;
|
|
|
435
|
|
|
436 if (cf->args->nelts != 2) {
|
|
|
437 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameters number");
|
|
|
438 return NGX_CONF_ERROR;
|
|
|
439 }
|
|
|
440
|
|
|
441 value = cf->args->elts;
|
|
|
442
|
|
|
443 src = ngx_hextoi(value[0].data, value[0].len);
|
|
|
444 if (src == NGX_ERROR || src > 255) {
|
|
|
445 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
446 "invalid value \"%V\"", &value[0]);
|
|
|
447 return NGX_CONF_ERROR;
|
|
|
448 }
|
|
|
449
|
|
|
450 dst = ngx_hextoi(value[1].data, value[1].len);
|
|
|
451 if (dst == NGX_ERROR || dst > 255) {
|
|
|
452 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0,
|
|
|
453 "invalid value \"%V\"", &value[1]);
|
|
|
454 return NGX_CONF_ERROR;
|
|
|
455 }
|
|
|
456
|
|
|
457 table = cf->ctx;
|
|
|
458
|
|
184
|
459 table->src2dst[src] = (u_char) dst;
|
|
|
460 table->dst2src[dst] = (u_char) src;
|
|
50
|
461
|
|
|
462 return NGX_CONF_OK;
|
|
|
463 }
|
|
|
464
|
|
|
465
|
|
|
466 static char *
|
|
|
467 ngx_http_set_charset_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf)
|
|
|
468 {
|
|
|
469 char *p = conf;
|
|
|
470
|
|
|
471 ngx_int_t *cp;
|
|
|
472 ngx_str_t *value;
|
|
|
473 ngx_http_charset_main_conf_t *mcf;
|
|
|
474
|
|
|
475 cp = (ngx_int_t *) (p + cmd->offset);
|
|
|
476
|
|
|
477 if (*cp != NGX_CONF_UNSET) {
|
|
|
478 return "is duplicate";
|
|
|
479 }
|
|
|
480
|
|
78
|
481 value = cf->args->elts;
|
|
|
482
|
|
|
483 if (cmd->offset == offsetof(ngx_http_charset_loc_conf_t, charset)
|
|
|
484 && ngx_strcmp(value[1].data, "off") == 0)
|
|
|
485 {
|
|
|
486 *cp = NGX_HTTP_NO_CHARSET;
|
|
|
487 return NGX_CONF_OK;
|
|
|
488 }
|
|
|
489
|
|
50
|
490 mcf = ngx_http_conf_get_module_main_conf(cf,
|
|
|
491 ngx_http_charset_filter_module);
|
|
|
492
|
|
|
493 *cp = ngx_http_add_charset(&mcf->charsets, &value[1]);
|
|
|
494 if (*cp == NGX_ERROR) {
|
|
|
495 return NGX_CONF_ERROR;
|
|
|
496 }
|
|
|
497
|
|
|
498 return NGX_CONF_OK;
|
|
|
499 }
|
|
|
500
|
|
|
501
|
|
|
502 static ngx_int_t
|
|
|
503 ngx_http_add_charset(ngx_array_t *charsets, ngx_str_t *name)
|
|
|
504 {
|
|
|
505 ngx_uint_t i;
|
|
|
506 ngx_http_charset_t *c;
|
|
|
507
|
|
|
508 c = charsets->elts;
|
|
|
509 for (i = 0; i < charsets->nelts; i++) {
|
|
|
510 if (name->len != c[i].name.len) {
|
|
|
511 continue;
|
|
|
512 }
|
|
|
513
|
|
|
514 if (ngx_strcasecmp(name->data, c[i].name.data) == 0) {
|
|
|
515 break;
|
|
|
516 }
|
|
|
517 }
|
|
|
518
|
|
|
519 if (i < charsets->nelts) {
|
|
|
520 return i;
|
|
|
521 }
|
|
|
522
|
|
|
523 c = ngx_array_push(charsets);
|
|
|
524 if (c == NULL) {
|
|
|
525 return NGX_ERROR;
|
|
|
526 }
|
|
|
527
|
|
|
528 c->tables = NULL;
|
|
|
529 c->name = *name;
|
|
|
530
|
|
72
|
531 if (ngx_strcasecmp(name->data, "utf-8") == 0) {
|
|
|
532 c->utf8 = 1;
|
|
|
533 }
|
|
|
534
|
|
50
|
535 return i;
|
|
|
536 }
|
|
|
537
|
|
|
538
|
|
|
539 static ngx_int_t
|
|
|
540 ngx_http_charset_filter_init(ngx_cycle_t *cycle)
|
|
|
541 {
|
|
|
542 ngx_http_next_header_filter = ngx_http_top_header_filter;
|
|
|
543 ngx_http_top_header_filter = ngx_http_charset_header_filter;
|
|
|
544
|
|
|
545 ngx_http_next_body_filter = ngx_http_top_body_filter;
|
|
|
546 ngx_http_top_body_filter = ngx_http_charset_body_filter;
|
|
|
547
|
|
|
548 return NGX_OK;
|
|
|
549 }
|
|
|
550
|
|
|
551
|
|
|
552 static void *
|
|
|
553 ngx_http_charset_create_main_conf(ngx_conf_t *cf)
|
|
|
554 {
|
|
|
555 ngx_http_charset_main_conf_t *mcf;
|
|
|
556
|
|
|
557 mcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_charset_main_conf_t));
|
|
|
558 if (mcf == NULL) {
|
|
|
559 return NGX_CONF_ERROR;
|
|
|
560 }
|
|
|
561
|
|
|
562 if (ngx_array_init(&mcf->charsets, cf->pool, 2, sizeof(ngx_http_charset_t))
|
|
78
|
563 == NGX_ERROR)
|
|
50
|
564 {
|
|
|
565 return NGX_CONF_ERROR;
|
|
|
566 }
|
|
|
567
|
|
78
|
568 if (ngx_array_init(&mcf->tables, cf->pool, 1,
|
|
50
|
569 sizeof(ngx_http_charset_tables_t)) == NGX_ERROR)
|
|
|
570 {
|
|
|
571 return NGX_CONF_ERROR;
|
|
|
572 }
|
|
|
573
|
|
78
|
574 if (ngx_array_init(&mcf->recodes, cf->pool, 2,
|
|
|
575 sizeof(ngx_http_charset_recode_t)) == NGX_ERROR)
|
|
|
576 {
|
|
|
577 return NGX_CONF_ERROR;
|
|
|
578 }
|
|
|
579
|
|
50
|
580 return mcf;
|
|
|
581 }
|
|
|
582
|
|
|
583
|
|
|
584 static void *
|
|
|
585 ngx_http_charset_create_loc_conf(ngx_conf_t *cf)
|
|
|
586 {
|
|
|
587 ngx_http_charset_loc_conf_t *lcf;
|
|
|
588
|
|
|
589 lcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_charset_loc_conf_t));
|
|
|
590 if (lcf == NULL) {
|
|
|
591 return NGX_CONF_ERROR;
|
|
|
592 }
|
|
|
593
|
|
78
|
594 lcf->charset = NGX_CONF_UNSET;
|
|
50
|
595 lcf->source_charset = NGX_CONF_UNSET;
|
|
184
|
596 lcf->override_charset = NGX_CONF_UNSET;
|
|
50
|
597
|
|
|
598 return lcf;
|
|
|
599 }
|
|
|
600
|
|
|
601
|
|
|
602 static char *
|
|
|
603 ngx_http_charset_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child)
|
|
|
604 {
|
|
|
605 ngx_http_charset_loc_conf_t *prev = parent;
|
|
|
606 ngx_http_charset_loc_conf_t *conf = child;
|
|
|
607
|
|
78
|
608 ngx_uint_t i;
|
|
|
609 ngx_http_charset_recode_t *recode;
|
|
|
610 ngx_http_charset_main_conf_t *mcf;
|
|
50
|
611
|
|
184
|
612 ngx_conf_merge_value(conf->override_charset, prev->override_charset, 0);
|
|
78
|
613 ngx_conf_merge_value(conf->charset, prev->charset, NGX_HTTP_NO_CHARSET);
|
|
50
|
614
|
|
|
615 if (conf->source_charset == NGX_CONF_UNSET) {
|
|
|
616 conf->source_charset = prev->source_charset;
|
|
|
617 }
|
|
|
618
|
|
78
|
619 if (conf->charset == NGX_HTTP_NO_CHARSET
|
|
|
620 || conf->source_charset == NGX_CONF_UNSET
|
|
|
621 || conf->charset == conf->source_charset)
|
|
50
|
622 {
|
|
78
|
623 return NGX_CONF_OK;
|
|
50
|
624 }
|
|
|
625
|
|
78
|
626 mcf = ngx_http_conf_get_module_main_conf(cf,
|
|
|
627 ngx_http_charset_filter_module);
|
|
|
628 recode = mcf->recodes.elts;
|
|
|
629 for (i = 0; i < mcf->recodes.nelts; i++) {
|
|
|
630 if (conf->source_charset == recode[i].src
|
|
|
631 && conf->charset == recode[i].dst)
|
|
|
632 {
|
|
|
633 return NGX_CONF_OK;
|
|
|
634 }
|
|
50
|
635 }
|
|
|
636
|
|
78
|
637 recode = ngx_array_push(&mcf->recodes);
|
|
|
638 if (recode == NULL) {
|
|
50
|
639 return NGX_CONF_ERROR;
|
|
|
640 }
|
|
|
641
|
|
78
|
642 recode->src = conf->source_charset;
|
|
|
643 recode->dst = conf->charset;
|
|
|
644
|
|
50
|
645 return NGX_CONF_OK;
|
|
|
646 }
|
|
78
|
647
|
|
|
648
|
|
|
649 static ngx_int_t
|
|
|
650 ngx_http_charset_postconfiguration(ngx_conf_t *cf)
|
|
|
651 {
|
|
184
|
652 u_char **src, **dst;
|
|
78
|
653 ngx_int_t c;
|
|
|
654 ngx_uint_t i, t;
|
|
|
655 ngx_http_charset_t *charset;
|
|
|
656 ngx_http_charset_recode_t *recode;
|
|
|
657 ngx_http_charset_tables_t *tables;
|
|
|
658 ngx_http_charset_main_conf_t *mcf;
|
|
|
659
|
|
|
660 mcf = ngx_http_conf_get_module_main_conf(cf,
|
|
|
661 ngx_http_charset_filter_module);
|
|
|
662
|
|
|
663 recode = mcf->recodes.elts;
|
|
|
664 tables = mcf->tables.elts;
|
|
|
665 charset = mcf->charsets.elts;
|
|
|
666
|
|
|
667 for (i = 0; i < mcf->recodes.nelts; i++) {
|
|
|
668
|
|
|
669 c = recode[i].src;
|
|
|
670
|
|
|
671 for (t = 0; t < mcf->tables.nelts; t++) {
|
|
|
672
|
|
|
673 if (c == tables[t].src && recode[i].dst == tables[t].dst) {
|
|
|
674 goto next;
|
|
|
675 }
|
|
|
676
|
|
|
677 if (c == tables[t].dst && recode[i].dst == tables[t].src) {
|
|
|
678 goto next;
|
|
|
679 }
|
|
|
680 }
|
|
|
681
|
|
|
682 ngx_log_error(NGX_LOG_EMERG, cf->log, 0,
|
|
|
683 " no \"charset_map\" between the charsets "
|
|
|
684 "\"%V\" and \"%V\"",
|
|
|
685 &charset[c].name, &charset[recode[i].dst].name);
|
|
|
686 return NGX_ERROR;
|
|
|
687
|
|
|
688 next:
|
|
|
689 continue;
|
|
|
690 }
|
|
|
691
|
|
184
|
692
|
|
|
693 for (t = 0; t < mcf->tables.nelts; t++) {
|
|
|
694
|
|
|
695 src = charset[tables[t].src].tables;
|
|
|
696
|
|
|
697 if (src == NULL) {
|
|
|
698 src = ngx_pcalloc(cf->pool, sizeof(u_char *) * mcf->charsets.nelts);
|
|
|
699 if (src == NULL) {
|
|
|
700 return NGX_ERROR;
|
|
|
701 }
|
|
|
702
|
|
|
703 charset[tables[t].src].tables = src;
|
|
|
704 }
|
|
|
705
|
|
|
706 dst = charset[tables[t].dst].tables;
|
|
|
707
|
|
|
708 if (dst == NULL) {
|
|
|
709 dst = ngx_pcalloc(cf->pool, sizeof(u_char *) * mcf->charsets.nelts);
|
|
|
710 if (dst == NULL) {
|
|
|
711 return NGX_ERROR;
|
|
|
712 }
|
|
|
713
|
|
|
714 charset[tables[t].dst].tables = dst;
|
|
|
715 }
|
|
|
716
|
|
|
717 src[tables[t].dst] = tables[t].src2dst;
|
|
|
718 dst[tables[t].src] = tables[t].dst2src;
|
|
|
719 }
|
|
|
720
|
|
78
|
721 return NGX_OK;
|
|
|
722 }
|
