Mercurial > hg > nginx
annotate src/http/modules/ngx_http_charset_filter_module.c @ 752:907361d07f25
ngx_http_charset_module supports the variables
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 09 Oct 2006 14:16:36 +0000 |
parents | 7e24168b0853 |
children | 36f7b549f481 |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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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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11 |
657 | 12 #define NGX_HTTP_NO_CHARSET -2 |
752
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13 #define NGX_HTTP_CHARSET_VAR 0x10000 |
657 | 14 |
15 /* 1 byte length and up to 3 bytes for the UTF-8 encoding of the UCS-2 */ | |
16 #define NGX_UTF_LEN 4 | |
17 | |
18 #define NGX_HTML_ENTITY_LEN (sizeof("") - 1) | |
529 | 19 |
20 | |
99
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21 typedef struct { |
657 | 22 u_char **tables; |
23 ngx_str_t name; | |
523 | 24 |
657 | 25 unsigned length:16; |
26 unsigned utf8:1; | |
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27 } ngx_http_charset_t; |
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28 |
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29 |
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30 typedef struct { |
657 | 31 ngx_int_t src; |
32 ngx_int_t dst; | |
529 | 33 } ngx_http_charset_recode_t; |
34 | |
35 | |
36 typedef struct { | |
657 | 37 ngx_int_t src; |
38 ngx_int_t dst; | |
39 u_char *src2dst; | |
40 u_char *dst2src; | |
339
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41 } ngx_http_charset_tables_t; |
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42 |
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44 typedef struct { |
657 | 45 ngx_array_t charsets; /* ngx_http_charset_t */ |
46 ngx_array_t tables; /* ngx_http_charset_tables_t */ | |
47 ngx_array_t recodes; /* ngx_http_charset_recode_t */ | |
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48 } ngx_http_charset_main_conf_t; |
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49 |
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50 |
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51 typedef struct { |
657 | 52 ngx_int_t charset; |
53 ngx_int_t source_charset; | |
54 ngx_flag_t override_charset; | |
99
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55 } ngx_http_charset_loc_conf_t; |
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56 |
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58 typedef struct { |
657 | 59 u_char *table; |
60 ngx_int_t charset; | |
61 | |
62 ngx_chain_t *busy; | |
63 ngx_chain_t *free_bufs; | |
64 ngx_chain_t *free_buffers; | |
65 | |
66 size_t saved_len; | |
67 u_char saved[NGX_UTF_LEN]; | |
68 | |
69 unsigned length:16; | |
70 unsigned from_utf8:1; | |
71 unsigned to_utf8:1; | |
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72 } ngx_http_charset_ctx_t; |
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73 |
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74 |
657 | 75 typedef struct { |
76 ngx_http_charset_tables_t *table; | |
77 ngx_http_charset_t *charset; | |
78 ngx_uint_t characters; | |
79 } ngx_http_charset_conf_ctx_t; | |
80 | |
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81 |
657 | 82 static ngx_int_t ngx_http_charset_get_charset(ngx_http_charset_t *charsets, |
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83 ngx_uint_t n, ngx_str_t *charset); |
657 | 84 static ngx_int_t ngx_http_charset_set_charset(ngx_http_request_t *r, |
85 ngx_http_charset_t *charsets, ngx_int_t charset, ngx_int_t source_charset); | |
86 static ngx_uint_t ngx_http_charset_recode(ngx_buf_t *b, u_char *table); | |
87 static ngx_chain_t *ngx_http_charset_recode_from_utf8(ngx_pool_t *pool, | |
88 ngx_buf_t *buf, ngx_http_charset_ctx_t *ctx); | |
89 static ngx_chain_t *ngx_http_charset_recode_to_utf8(ngx_pool_t *pool, | |
90 ngx_buf_t *buf, ngx_http_charset_ctx_t *ctx); | |
91 | |
92 static ngx_chain_t *ngx_http_charset_get_buf(ngx_pool_t *pool, | |
93 ngx_http_charset_ctx_t *ctx); | |
94 static ngx_chain_t *ngx_http_charset_get_buffer(ngx_pool_t *pool, | |
95 ngx_http_charset_ctx_t *ctx, size_t size); | |
96 | |
97 static char *ngx_http_charset_map_block(ngx_conf_t *cf, ngx_command_t *cmd, | |
501 | 98 void *conf); |
657 | 99 static char *ngx_http_charset_map(ngx_conf_t *cf, ngx_command_t *dummy, |
100 void *conf); | |
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101 |
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102 static char *ngx_http_set_charset_slot(ngx_conf_t *cf, ngx_command_t *cmd, |
501 | 103 void *conf); |
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104 static ngx_int_t ngx_http_add_charset(ngx_array_t *charsets, ngx_str_t *name); |
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105 |
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106 static void *ngx_http_charset_create_main_conf(ngx_conf_t *cf); |
119
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107 static void *ngx_http_charset_create_loc_conf(ngx_conf_t *cf); |
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108 static char *ngx_http_charset_merge_loc_conf(ngx_conf_t *cf, |
501 | 109 void *parent, void *child); |
529 | 110 static ngx_int_t ngx_http_charset_postconfiguration(ngx_conf_t *cf); |
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111 |
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112 |
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113 static ngx_command_t ngx_http_charset_filter_commands[] = { |
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114 |
529 | 115 { ngx_string("charset"), |
559 | 116 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF |
117 |NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
529 | 118 ngx_http_set_charset_slot, |
119 NGX_HTTP_LOC_CONF_OFFSET, | |
120 offsetof(ngx_http_charset_loc_conf_t, charset), | |
121 NULL }, | |
122 | |
123 { ngx_string("source_charset"), | |
559 | 124 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF |
125 |NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
529 | 126 ngx_http_set_charset_slot, |
127 NGX_HTTP_LOC_CONF_OFFSET, | |
128 offsetof(ngx_http_charset_loc_conf_t, source_charset), | |
129 NULL }, | |
130 | |
635 | 131 { ngx_string("override_charset"), |
132 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF | |
133 |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG, | |
134 ngx_conf_set_flag_slot, | |
135 NGX_HTTP_LOC_CONF_OFFSET, | |
136 offsetof(ngx_http_charset_loc_conf_t, override_charset), | |
137 NULL }, | |
138 | |
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139 { ngx_string("charset_map"), |
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140 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE2, |
657 | 141 ngx_http_charset_map_block, |
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142 NGX_HTTP_MAIN_CONF_OFFSET, |
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143 0, |
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144 NULL }, |
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146 ngx_null_command |
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147 }; |
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148 |
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149 |
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150 static ngx_http_module_t ngx_http_charset_filter_module_ctx = { |
509 | 151 NULL, /* preconfiguration */ |
529 | 152 ngx_http_charset_postconfiguration, /* postconfiguration */ |
177
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153 |
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154 ngx_http_charset_create_main_conf, /* create main configuration */ |
529 | 155 NULL, /* init main configuration */ |
99
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156 |
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157 NULL, /* create server configuration */ |
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158 NULL, /* merge server configuration */ |
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159 |
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160 ngx_http_charset_create_loc_conf, /* create location configuration */ |
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161 ngx_http_charset_merge_loc_conf /* merge location configuration */ |
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162 }; |
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163 |
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164 |
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165 ngx_module_t ngx_http_charset_filter_module = { |
509 | 166 NGX_MODULE_V1, |
99
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167 &ngx_http_charset_filter_module_ctx, /* module context */ |
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168 ngx_http_charset_filter_commands, /* module directives */ |
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169 NGX_HTTP_MODULE, /* module type */ |
541 | 170 NULL, /* init master */ |
681 | 171 NULL, /* init module */ |
541 | 172 NULL, /* init process */ |
173 NULL, /* init thread */ | |
174 NULL, /* exit thread */ | |
175 NULL, /* exit process */ | |
176 NULL, /* exit master */ | |
177 NGX_MODULE_V1_PADDING | |
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178 }; |
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179 |
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180 |
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181 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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182 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; |
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183 |
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184 |
501 | 185 static ngx_int_t |
186 ngx_http_charset_header_filter(ngx_http_request_t *r) | |
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187 { |
657 | 188 u_char *ct; |
635 | 189 ngx_int_t charset, source_charset; |
663 | 190 ngx_str_t *mc, *from, *to; |
657 | 191 ngx_uint_t n; |
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192 ngx_http_charset_t *charsets; |
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193 ngx_http_charset_ctx_t *ctx; |
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194 ngx_http_variable_value_t *vv; |
653 | 195 ngx_http_charset_loc_conf_t *lcf, *mlcf; |
339
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196 ngx_http_charset_main_conf_t *mcf; |
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197 |
339
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198 mcf = ngx_http_get_module_main_conf(r, ngx_http_charset_filter_module); |
635 | 199 |
657 | 200 charsets = mcf->charsets.elts; |
201 n = mcf->charsets.nelts; | |
635 | 202 |
657 | 203 /* destination charset */ |
653 | 204 |
205 if (r == r->main) { | |
657 | 206 |
653 | 207 if (r->headers_out.content_type.len == 0) { |
208 return ngx_http_next_header_filter(r); | |
209 } | |
389
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210 |
657 | 211 if (r->headers_out.override_charset |
212 && r->headers_out.override_charset->len) | |
653 | 213 { |
657 | 214 charset = ngx_http_charset_get_charset(charsets, n, |
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215 r->headers_out.override_charset); |
657 | 216 |
217 if (charset == NGX_HTTP_NO_CHARSET) { | |
661 | 218 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
657 | 219 "unknown charset \"%V\" to override", |
659 | 220 r->headers_out.override_charset); |
657 | 221 |
222 return ngx_http_next_header_filter(r); | |
223 } | |
224 | |
225 } else { | |
226 mlcf = ngx_http_get_module_loc_conf(r, | |
227 ngx_http_charset_filter_module); | |
228 charset = mlcf->charset; | |
229 | |
230 if (charset == NGX_HTTP_NO_CHARSET) { | |
231 return ngx_http_next_header_filter(r); | |
232 } | |
233 | |
234 if (r->headers_out.charset.len) { | |
235 if (mlcf->override_charset == 0) { | |
236 return ngx_http_next_header_filter(r); | |
237 } | |
238 | |
239 } else { | |
240 ct = r->headers_out.content_type.data; | |
241 | |
242 if (ngx_strncasecmp(ct, "text/", 5) != 0 | |
243 && ngx_strncasecmp(ct, "application/x-javascript", 24) != 0) | |
244 { | |
245 return ngx_http_next_header_filter(r); | |
246 } | |
247 } | |
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248 |
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249 if (charset >= NGX_HTTP_CHARSET_VAR) { |
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250 vv = ngx_http_get_indexed_variable(r, |
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251 charset - NGX_HTTP_CHARSET_VAR); |
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252 |
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253 charset = ngx_http_charset_get_charset(charsets, n, |
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254 (ngx_str_t *) vv); |
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255 } |
653 | 256 } |
257 | |
258 } else { | |
657 | 259 ctx = ngx_http_get_module_ctx(r->main, ngx_http_charset_filter_module); |
260 | |
261 if (ctx == NULL) { | |
262 | |
263 mc = &r->main->headers_out.charset; | |
264 | |
265 if (mc->len == 0) { | |
266 return ngx_http_next_header_filter(r); | |
267 } | |
268 | |
269 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_charset_ctx_t)); | |
270 if (ctx == NULL) { | |
271 return NGX_ERROR; | |
272 } | |
273 | |
274 ngx_http_set_ctx(r->main, ctx, ngx_http_charset_filter_module); | |
653 | 275 |
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276 charset = ngx_http_charset_get_charset(charsets, n, mc); |
657 | 277 |
278 ctx->charset = charset; | |
279 | |
661 | 280 } else { |
281 charset = ctx->charset; | |
653 | 282 } |
389
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283 } |
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284 |
657 | 285 /* source charset */ |
635 | 286 |
657 | 287 if (r->headers_out.charset.len == 0) { |
288 lcf = ngx_http_get_module_loc_conf(r, ngx_http_charset_filter_module); | |
635 | 289 |
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290 source_charset = lcf->source_charset; |
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291 |
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292 if (source_charset >= NGX_HTTP_CHARSET_VAR) { |
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293 vv = ngx_http_get_indexed_variable(r, |
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294 source_charset - NGX_HTTP_CHARSET_VAR); |
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295 |
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296 source_charset = ngx_http_charset_get_charset(charsets, n, |
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297 (ngx_str_t *) vv); |
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298 } |
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299 |
661 | 300 if (charset != NGX_HTTP_NO_CHARSET) { |
301 return ngx_http_charset_set_charset(r, mcf->charsets.elts, charset, | |
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302 source_charset); |
661 | 303 } |
304 | |
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305 if (source_charset == NGX_CONF_UNSET) { |
661 | 306 return ngx_http_next_header_filter(r); |
307 } | |
308 | |
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309 from = &charsets[source_charset].name; |
663 | 310 to = &r->main->headers_out.charset; |
661 | 311 |
663 | 312 goto no_charset_map; |
657 | 313 } |
635 | 314 |
657 | 315 source_charset = ngx_http_charset_get_charset(charsets, n, |
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316 &r->headers_out.charset); |
635 | 317 |
661 | 318 if (charset == NGX_HTTP_NO_CHARSET |
319 || source_charset == NGX_HTTP_NO_CHARSET) | |
320 { | |
321 if (charset != source_charset | |
322 || ngx_strcasecmp(r->main->headers_out.charset.data, | |
323 r->headers_out.charset.data) | |
324 != 0) | |
325 { | |
663 | 326 from = &r->headers_out.charset; |
327 to = (charset == NGX_HTTP_NO_CHARSET) ? | |
328 &r->main->headers_out.charset: | |
329 &charsets[charset].name; | |
330 | |
331 goto no_charset_map; | |
661 | 332 } |
635 | 333 |
657 | 334 return ngx_http_next_header_filter(r); |
335 } | |
635 | 336 |
657 | 337 if (source_charset != charset |
338 && (charsets[source_charset].tables == NULL | |
339 || charsets[source_charset].tables[charset] == NULL)) | |
340 { | |
663 | 341 from = &charsets[source_charset].name; |
342 to = &charsets[charset].name; | |
635 | 343 |
663 | 344 goto no_charset_map; |
133
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345 } |
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346 |
657 | 347 r->headers_out.content_type.len = r->headers_out.content_type_len; |
348 | |
349 return ngx_http_charset_set_charset(r, mcf->charsets.elts, charset, | |
350 source_charset); | |
663 | 351 |
352 no_charset_map: | |
353 | |
354 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
355 "no \"charset_map\" between the charsets " | |
356 "\"%V\" and \"%V\"", from, to); | |
357 | |
358 return ngx_http_next_header_filter(r); | |
657 | 359 } |
360 | |
361 | |
362 static ngx_int_t | |
363 ngx_http_charset_get_charset(ngx_http_charset_t *charsets, ngx_uint_t n, | |
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364 ngx_str_t *charset) |
657 | 365 { |
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366 size_t len; |
657 | 367 ngx_uint_t i; |
368 | |
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369 len = charset->len & 0xffff; |
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370 |
657 | 371 for (i = 0; i < n; i++) { |
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372 if (charsets[i].name.len != len) { |
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373 continue; |
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374 } |
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375 |
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376 if (ngx_strncasecmp(charsets[i].name.data, charset->data, len) == 0) { |
657 | 377 return i; |
378 } | |
379 } | |
380 | |
381 return NGX_HTTP_NO_CHARSET; | |
382 } | |
383 | |
384 | |
385 static ngx_int_t | |
386 ngx_http_charset_set_charset(ngx_http_request_t *r, | |
387 ngx_http_charset_t *charsets, ngx_int_t charset, ngx_int_t source_charset) | |
388 { | |
389 ngx_http_charset_ctx_t *ctx; | |
390 | |
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391 if (r->headers_out.status == NGX_HTTP_MOVED_PERMANENTLY |
501 | 392 || r->headers_out.status == NGX_HTTP_MOVED_TEMPORARILY) |
99
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393 { |
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394 /* |
635 | 395 * do not set charset for the redirect because NN 4.x |
396 * use this charset instead of the next page charset | |
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397 */ |
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398 |
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399 r->headers_out.charset.len = 0; |
657 | 400 |
339
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401 return ngx_http_next_header_filter(r); |
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402 } |
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403 |
635 | 404 r->headers_out.charset = charsets[charset].name; |
405 r->utf8 = charsets[charset].utf8; | |
406 | |
407 if (source_charset == NGX_CONF_UNSET || source_charset == charset) { | |
339
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408 return ngx_http_next_header_filter(r); |
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409 } |
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410 |
501 | 411 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_charset_ctx_t)); |
412 if (ctx == NULL) { | |
413 return NGX_ERROR; | |
414 } | |
415 | |
416 ngx_http_set_ctx(r, ctx, ngx_http_charset_filter_module); | |
417 | |
635 | 418 ctx->table = charsets[source_charset].tables[charset]; |
419 ctx->charset = charset; | |
657 | 420 ctx->length = charsets[charset].length; |
421 ctx->from_utf8 = charsets[source_charset].utf8; | |
422 ctx->to_utf8 = charsets[charset].utf8; | |
423 | |
663 | 424 r->filter_need_in_memory = 1; |
425 | |
657 | 426 if ((ctx->to_utf8 || ctx->from_utf8) && r == r->main) { |
427 ngx_http_clear_content_length(r); | |
663 | 428 |
429 } else { | |
430 r->filter_need_temporary = 1; | |
657 | 431 } |
339
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432 |
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433 return ngx_http_next_header_filter(r); |
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434 } |
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435 |
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436 |
501 | 437 static ngx_int_t |
438 ngx_http_charset_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
99
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439 { |
657 | 440 ngx_int_t rc; |
441 ngx_buf_t *b; | |
442 ngx_chain_t *cl, *out, **ll; | |
635 | 443 ngx_http_charset_ctx_t *ctx; |
339
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444 |
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445 ctx = ngx_http_get_module_ctx(r, ngx_http_charset_filter_module); |
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446 |
635 | 447 if (ctx == NULL || ctx->table == NULL) { |
339
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448 return ngx_http_next_body_filter(r, in); |
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449 } |
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450 |
657 | 451 if ((ctx->to_utf8 || ctx->from_utf8) || ctx->busy) { |
452 | |
453 out = NULL; | |
454 ll = &out; | |
455 | |
456 for (cl = in; cl; cl = cl->next) { | |
457 b = cl->buf; | |
458 | |
459 if (ngx_buf_size(b) == 0) { | |
665 | 460 |
461 *ll = ngx_alloc_chain_link(r->pool); | |
462 if (*ll == NULL) { | |
463 return NGX_ERROR; | |
464 } | |
465 | |
466 (*ll)->buf = b; | |
467 (*ll)->next = NULL; | |
468 | |
469 ll = &(*ll)->next; | |
470 | |
657 | 471 continue; |
472 } | |
473 | |
474 if (ctx->to_utf8) { | |
475 *ll = ngx_http_charset_recode_to_utf8(r->pool, b, ctx); | |
476 | |
477 } else { | |
478 *ll = ngx_http_charset_recode_from_utf8(r->pool, b, ctx); | |
479 } | |
480 | |
481 if (*ll == NULL) { | |
482 return NGX_ERROR; | |
483 } | |
484 | |
485 while (*ll) { | |
486 ll = &(*ll)->next; | |
487 } | |
488 } | |
489 | |
490 rc = ngx_http_next_body_filter(r, out); | |
491 | |
492 if (out) { | |
493 if (ctx->busy == NULL) { | |
494 ctx->busy = out; | |
495 | |
496 } else { | |
497 for (cl = ctx->busy; cl->next; cl = cl->next) { /* void */ } | |
498 cl->next = out; | |
499 } | |
500 } | |
501 | |
502 while (ctx->busy) { | |
503 | |
504 cl = ctx->busy; | |
505 b = cl->buf; | |
506 | |
507 if (ngx_buf_size(b) != 0) { | |
508 break; | |
509 } | |
510 | |
511 #if (NGX_HAVE_WRITE_ZEROCOPY) | |
512 if (b->zerocopy_busy) { | |
513 break; | |
514 } | |
515 #endif | |
516 | |
517 ctx->busy = cl->next; | |
518 | |
519 if (b->tag != (ngx_buf_tag_t) &ngx_http_charset_filter_module) { | |
520 continue; | |
521 } | |
522 | |
523 if (b->shadow) { | |
524 b->shadow->pos = b->shadow->last; | |
525 } | |
526 | |
527 if (b->pos) { | |
528 cl->next = ctx->free_buffers; | |
529 ctx->free_buffers = cl; | |
530 continue; | |
531 } | |
532 | |
533 cl->next = ctx->free_bufs; | |
534 ctx->free_bufs = cl; | |
535 } | |
536 | |
537 return rc; | |
538 } | |
539 | |
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540 for (cl = in; cl; cl = cl->next) { |
635 | 541 (void) ngx_http_charset_recode(cl->buf, ctx->table); |
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542 } |
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543 |
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544 return ngx_http_next_body_filter(r, in); |
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545 } |
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546 |
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547 |
501 | 548 static ngx_uint_t |
635 | 549 ngx_http_charset_recode(ngx_buf_t *b, u_char *table) |
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550 { |
635 | 551 u_char *p; |
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553 for (p = b->pos; p < b->last; p++) { |
635 | 554 |
555 if (*p == table[*p]) { | |
556 continue; | |
455 | 557 } |
558 | |
559 while (p < b->last) { | |
560 *p = table[*p]; | |
561 p++; | |
562 } | |
563 | |
564 b->in_file = 0; | |
635 | 565 |
566 return 1; | |
455 | 567 } |
568 | |
635 | 569 return 0; |
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570 } |
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571 |
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572 |
657 | 573 static ngx_chain_t * |
574 ngx_http_charset_recode_from_utf8(ngx_pool_t *pool, ngx_buf_t *buf, | |
575 ngx_http_charset_ctx_t *ctx) | |
576 { | |
577 size_t len, size; | |
578 u_char c, *p, *src, *dst, *saved, **table; | |
579 uint32_t n; | |
580 ngx_buf_t *b; | |
581 ngx_uint_t i; | |
582 ngx_chain_t *out, *cl, **ll; | |
583 | |
584 src = buf->pos; | |
585 | |
586 if (ctx->saved_len == 0) { | |
587 | |
588 for ( /* void */ ; src < buf->last; src++) { | |
589 | |
590 if (*src < 0x80) { | |
591 continue; | |
592 } | |
593 | |
594 len = src - buf->pos; | |
595 | |
596 if (len > 512) { | |
597 out = ngx_http_charset_get_buf(pool, ctx); | |
598 if (out == NULL) { | |
599 return NULL; | |
600 } | |
601 | |
602 b = out->buf; | |
603 | |
604 b->temporary = buf->temporary; | |
605 b->memory = buf->memory; | |
606 b->mmap = buf->mmap; | |
607 b->flush = buf->flush; | |
608 | |
609 b->pos = buf->pos; | |
610 b->last = src; | |
611 | |
612 out->buf = b; | |
613 out->next = NULL; | |
614 | |
615 size = buf->last - src; | |
616 | |
617 saved = src; | |
618 n = ngx_utf_decode(&saved, size); | |
619 | |
620 if (n == 0xfffffffe) { | |
621 /* incomplete UTF-8 symbol */ | |
622 | |
623 ngx_memcpy(ctx->saved, src, size); | |
624 ctx->saved_len = size; | |
625 | |
626 b->shadow = buf; | |
627 | |
628 return out; | |
629 } | |
630 | |
631 } else { | |
632 out = NULL; | |
633 size = len + buf->last - src; | |
634 src = buf->pos; | |
635 } | |
636 | |
637 if (size < NGX_HTML_ENTITY_LEN) { | |
638 size += NGX_HTML_ENTITY_LEN; | |
639 } | |
640 | |
641 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
642 if (cl == NULL) { | |
643 return NULL; | |
644 } | |
645 | |
646 if (out) { | |
647 out->next = cl; | |
648 | |
649 } else { | |
650 out = cl; | |
651 } | |
652 | |
653 b = cl->buf; | |
654 dst = b->pos; | |
655 | |
656 goto recode; | |
657 } | |
658 | |
659 out = ngx_alloc_chain_link(pool); | |
660 if (out == NULL) { | |
661 return NULL; | |
662 } | |
663 | |
664 out->buf = buf; | |
665 out->next = NULL; | |
666 | |
667 return out; | |
668 } | |
669 | |
670 /* process incomplete UTF sequence from previous buffer */ | |
671 | |
672 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
673 "http charset utf saved: %z", ctx->saved_len); | |
674 | |
675 p = src; | |
676 | |
677 for (i = ctx->saved_len; i < NGX_UTF_LEN; i++) { | |
678 ctx->saved[i] = *p++; | |
679 | |
680 if (p == buf->last) { | |
681 break; | |
682 } | |
683 } | |
684 | |
685 saved = ctx->saved; | |
686 n = ngx_utf_decode(&saved, i); | |
687 | |
688 c = '\0'; | |
689 | |
690 if (n < 0x10000) { | |
691 table = (u_char **) ctx->table; | |
692 p = table[n >> 8]; | |
693 | |
694 if (p) { | |
695 c = p[n & 0xff]; | |
696 } | |
697 | |
698 } else if (n == 0xfffffffe) { | |
699 | |
700 /* incomplete UTF-8 symbol */ | |
701 | |
702 if (i < NGX_UTF_LEN) { | |
703 out = ngx_http_charset_get_buf(pool, ctx); | |
704 if (out == NULL) { | |
705 return NULL; | |
706 } | |
707 | |
708 b = out->buf; | |
709 | |
710 b->pos = buf->pos; | |
711 b->last = buf->last; | |
712 b->sync = 1; | |
713 b->shadow = buf; | |
714 | |
715 ngx_memcpy(&ctx->saved[ctx->saved_len], src, i); | |
716 ctx->saved_len += i; | |
717 | |
718 return out; | |
719 } | |
720 } | |
721 | |
722 size = buf->last - buf->pos; | |
723 | |
724 if (size < NGX_HTML_ENTITY_LEN) { | |
725 size += NGX_HTML_ENTITY_LEN; | |
726 } | |
727 | |
728 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
729 if (cl == NULL) { | |
730 return NULL; | |
731 } | |
732 | |
733 out = cl; | |
734 | |
735 b = cl->buf; | |
736 dst = b->pos; | |
737 | |
738 if (c) { | |
739 *dst++ = c; | |
740 | |
741 } else if (n == 0xfffffffe) { | |
742 *dst++ = '?'; | |
743 | |
744 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
745 "http charset invalid utf 0"); | |
746 | |
747 saved = &ctx->saved[NGX_UTF_LEN]; | |
748 | |
749 } else if (n > 0x10ffff) { | |
750 *dst++ = '?'; | |
751 | |
752 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
753 "http charset invalid utf 1"); | |
754 | |
755 } else { | |
756 dst = ngx_sprintf(dst, "&#%uD;", n); | |
757 } | |
758 | |
759 src += (saved - ctx->saved) - ctx->saved_len; | |
760 ctx->saved_len = 0; | |
761 | |
762 recode: | |
763 | |
764 ll = &cl->next; | |
765 | |
766 table = (u_char **) ctx->table; | |
767 | |
768 while (src < buf->last) { | |
769 | |
770 if ((size_t) (b->end - dst) < NGX_HTML_ENTITY_LEN) { | |
771 b->last = dst; | |
772 | |
773 size = buf->last - src + NGX_HTML_ENTITY_LEN; | |
774 | |
775 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
776 if (cl == NULL) { | |
777 return NULL; | |
778 } | |
779 | |
780 *ll = cl; | |
781 ll = &cl->next; | |
782 | |
783 b = cl->buf; | |
784 dst = b->pos; | |
785 } | |
786 | |
787 if (*src < 0x80) { | |
788 *dst++ = *src++; | |
789 continue; | |
790 } | |
791 | |
792 len = buf->last - src; | |
793 | |
794 n = ngx_utf_decode(&src, len); | |
795 | |
796 if (n < 0x10000) { | |
797 | |
798 p = table[n >> 8]; | |
799 | |
800 if (p) { | |
801 c = p[n & 0xff]; | |
802 | |
803 if (c) { | |
804 *dst++ = c; | |
805 continue; | |
806 } | |
807 } | |
808 | |
809 dst = ngx_sprintf(dst, "&#%uD;", n); | |
810 | |
811 continue; | |
812 } | |
813 | |
814 if (n == 0xfffffffe) { | |
815 /* incomplete UTF-8 symbol */ | |
816 | |
817 ngx_memcpy(ctx->saved, src, len); | |
818 ctx->saved_len = len; | |
819 | |
820 if (b->pos == dst) { | |
821 b->sync = 1; | |
822 b->temporary = 0; | |
823 } | |
824 | |
825 break; | |
826 } | |
827 | |
828 if (n > 0x10ffff) { | |
829 *dst++ = '?'; | |
830 | |
831 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
832 "http charset invalid utf 2"); | |
833 | |
834 continue; | |
835 } | |
836 | |
837 /* n > 0xffff */ | |
838 | |
839 dst = ngx_sprintf(dst, "&#%uD;", n); | |
840 } | |
841 | |
842 b->last = dst; | |
843 | |
844 b->last_buf = buf->last_buf; | |
845 b->last_in_chain = buf->last_in_chain; | |
846 b->flush = buf->flush; | |
847 | |
848 b->shadow = buf; | |
849 | |
850 return out; | |
851 } | |
852 | |
853 | |
854 static ngx_chain_t * | |
855 ngx_http_charset_recode_to_utf8(ngx_pool_t *pool, ngx_buf_t *buf, | |
856 ngx_http_charset_ctx_t *ctx) | |
857 { | |
858 size_t len, size; | |
859 u_char *p, *src, *dst, *table; | |
860 ngx_buf_t *b; | |
861 ngx_chain_t *out, *cl, **ll; | |
862 | |
863 table = ctx->table; | |
864 | |
865 for (src = buf->pos; src < buf->last; src++) { | |
866 if (table[*src * NGX_UTF_LEN] == '\1') { | |
867 continue; | |
868 } | |
869 | |
870 goto recode; | |
871 } | |
872 | |
873 out = ngx_alloc_chain_link(pool); | |
874 if (out == NULL) { | |
875 return NULL; | |
876 } | |
877 | |
878 out->buf = buf; | |
879 out->next = NULL; | |
880 | |
881 return out; | |
882 | |
883 recode: | |
884 | |
885 /* | |
886 * we assume that there are about half of characters to be recoded, | |
887 * so we preallocate "size / 2 + size / 2 * ctx->length" | |
888 */ | |
889 | |
890 len = src - buf->pos; | |
891 | |
892 if (len > 512) { | |
893 out = ngx_http_charset_get_buf(pool, ctx); | |
894 if (out == NULL) { | |
895 return NULL; | |
896 } | |
897 | |
898 b = out->buf; | |
899 | |
900 b->temporary = buf->temporary; | |
901 b->memory = buf->memory; | |
902 b->mmap = buf->mmap; | |
903 b->flush = buf->flush; | |
904 | |
905 b->pos = buf->pos; | |
906 b->last = src; | |
907 | |
908 out->buf = b; | |
909 out->next = NULL; | |
910 | |
911 size = buf->last - src; | |
912 size = size / 2 + size / 2 * ctx->length; | |
913 | |
914 } else { | |
915 out = NULL; | |
916 | |
917 size = buf->last - src; | |
918 size = len + size / 2 + size / 2 * ctx->length; | |
919 | |
920 src = buf->pos; | |
921 } | |
922 | |
923 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
924 if (cl == NULL) { | |
925 return NULL; | |
926 } | |
927 | |
928 if (out) { | |
929 out->next = cl; | |
930 | |
931 } else { | |
932 out = cl; | |
933 } | |
934 | |
935 ll = &cl->next; | |
936 | |
937 b = cl->buf; | |
938 dst = b->pos; | |
939 | |
940 while (src < buf->last) { | |
941 | |
942 p = &table[*src++ * NGX_UTF_LEN]; | |
943 len = *p++; | |
944 | |
945 if ((size_t) (b->end - dst) < len) { | |
946 b->last = dst; | |
947 | |
948 size = buf->last - src; | |
949 size = len + size / 2 + size / 2 * ctx->length; | |
950 | |
951 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
952 if (cl == NULL) { | |
953 return NULL; | |
954 } | |
955 | |
956 *ll = cl; | |
957 ll = &cl->next; | |
958 | |
959 b = cl->buf; | |
960 dst = b->pos; | |
961 } | |
962 | |
963 while (len) { | |
964 *dst++ = *p++; | |
965 len--; | |
966 } | |
967 } | |
968 | |
969 b->last = dst; | |
970 | |
971 b->last_buf = buf->last_buf; | |
972 b->last_in_chain = buf->last_in_chain; | |
973 b->flush = buf->flush; | |
974 | |
975 b->shadow = buf; | |
976 | |
977 return out; | |
978 } | |
979 | |
980 | |
981 static ngx_chain_t * | |
982 ngx_http_charset_get_buf(ngx_pool_t *pool, ngx_http_charset_ctx_t *ctx) | |
983 { | |
984 ngx_chain_t *cl; | |
985 | |
986 cl = ctx->free_bufs; | |
987 | |
988 if (cl) { | |
989 ctx->free_bufs = cl->next; | |
990 | |
991 cl->buf->shadow = NULL; | |
992 cl->next = NULL; | |
993 | |
994 return cl; | |
995 } | |
996 | |
997 cl = ngx_alloc_chain_link(pool); | |
998 if (cl == NULL) { | |
999 return NULL; | |
1000 } | |
1001 | |
1002 cl->buf = ngx_calloc_buf(pool); | |
1003 if (cl->buf == NULL) { | |
1004 return NULL; | |
1005 } | |
1006 | |
1007 cl->next = NULL; | |
1008 | |
1009 cl->buf->tag = (ngx_buf_tag_t) &ngx_http_charset_filter_module; | |
1010 | |
1011 return cl; | |
1012 } | |
1013 | |
1014 | |
1015 static ngx_chain_t * | |
1016 ngx_http_charset_get_buffer(ngx_pool_t *pool, ngx_http_charset_ctx_t *ctx, | |
1017 size_t size) | |
1018 { | |
1019 ngx_buf_t *b; | |
1020 ngx_chain_t *cl, **ll; | |
1021 | |
1022 for (ll = &ctx->free_buffers, cl = ctx->free_buffers; | |
1023 cl; | |
1024 ll = &cl->next, cl = cl->next) | |
1025 { | |
1026 b = cl->buf; | |
1027 | |
1028 if ((size_t) (b->end - b->start) >= size) { | |
1029 *ll = cl->next; | |
1030 cl->next = NULL; | |
1031 | |
1032 b->pos = b->start; | |
1033 b->temporary = 1; | |
1034 b->shadow = NULL; | |
1035 | |
1036 return cl; | |
1037 } | |
1038 } | |
1039 | |
1040 cl = ngx_alloc_chain_link(pool); | |
1041 if (cl == NULL) { | |
1042 return NULL; | |
1043 } | |
1044 | |
1045 cl->buf = ngx_create_temp_buf(pool, size); | |
1046 if (cl->buf == NULL) { | |
1047 return NULL; | |
1048 } | |
1049 | |
1050 cl->next = NULL; | |
1051 | |
1052 cl->buf->temporary = 1; | |
1053 cl->buf->tag = (ngx_buf_tag_t) &ngx_http_charset_filter_module; | |
1054 | |
1055 return cl; | |
1056 } | |
1057 | |
1058 | |
501 | 1059 static char * |
657 | 1060 ngx_http_charset_map_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
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1061 { |
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1062 ngx_http_charset_main_conf_t *mcf = conf; |
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1063 |
657 | 1064 char *rv; |
1065 u_char *p, *dst2src, **pp; | |
1066 ngx_int_t src, dst; | |
1067 ngx_uint_t i, n; | |
1068 ngx_str_t *value; | |
1069 ngx_conf_t pvcf; | |
1070 ngx_http_charset_t *charset; | |
1071 ngx_http_charset_tables_t *table; | |
1072 ngx_http_charset_conf_ctx_t ctx; | |
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1073 |
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1074 value = cf->args->elts; |
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1075 |
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1076 src = ngx_http_add_charset(&mcf->charsets, &value[1]); |
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1077 if (src == NGX_ERROR) { |
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1078 return NGX_CONF_ERROR; |
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1079 } |
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1080 |
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1081 dst = ngx_http_add_charset(&mcf->charsets, &value[2]); |
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1082 if (dst == NGX_ERROR) { |
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1083 return NGX_CONF_ERROR; |
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1084 } |
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1085 |
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1086 if (src == dst) { |
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1087 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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1088 "\"charset_map\" between the same charsets " |
461 | 1089 "\"%V\" and \"%V\"", &value[1], &value[2]); |
339
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1090 return NGX_CONF_ERROR; |
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1091 } |
338
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1092 |
339
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1093 table = mcf->tables.elts; |
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1094 for (i = 0; i < mcf->tables.nelts; i++) { |
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1095 if ((src == table->src && dst == table->dst) |
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1096 || (src == table->dst && dst == table->src)) |
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1097 { |
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1098 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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1099 "duplicate \"charset_map\" between " |
461 | 1100 "\"%V\" and \"%V\"", &value[1], &value[2]); |
339
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1101 return NGX_CONF_ERROR; |
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1102 } |
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1103 } |
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1104 |
501 | 1105 table = ngx_array_push(&mcf->tables); |
1106 if (table == NULL) { | |
339
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1107 return NGX_CONF_ERROR; |
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1108 } |
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1109 |
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1110 table->src = src; |
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1111 table->dst = dst; |
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1112 |
657 | 1113 if (ngx_strcasecmp(value[2].data, "utf-8") == 0) { |
1114 table->src2dst = ngx_pcalloc(cf->pool, 256 * NGX_UTF_LEN); | |
1115 if (table->src2dst == NULL) { | |
1116 return NGX_CONF_ERROR; | |
1117 } | |
1118 | |
1119 table->dst2src = ngx_pcalloc(cf->pool, 256 * sizeof(void *)); | |
1120 if (table->dst2src == NULL) { | |
1121 return NGX_CONF_ERROR; | |
1122 } | |
1123 | |
1124 dst2src = ngx_pcalloc(cf->pool, 256); | |
1125 if (dst2src == NULL) { | |
1126 return NGX_CONF_ERROR; | |
1127 } | |
1128 | |
1129 pp = (u_char **) &table->dst2src[0]; | |
1130 pp[0] = dst2src; | |
1131 | |
1132 for (i = 0; i < 128; i++) { | |
1133 p = &table->src2dst[i * NGX_UTF_LEN]; | |
1134 p[0] = '\1'; | |
1135 p[1] = (u_char) i; | |
1136 dst2src[i] = (u_char) i; | |
1137 } | |
339
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1138 |
657 | 1139 for (/* void */; i < 256; i++) { |
1140 p = &table->src2dst[i * NGX_UTF_LEN]; | |
1141 p[0] = '\1'; | |
1142 p[1] = '?'; | |
1143 } | |
1144 | |
1145 } else { | |
1146 table->src2dst = ngx_palloc(cf->pool, 256); | |
1147 if (table->src2dst == NULL) { | |
1148 return NGX_CONF_ERROR; | |
1149 } | |
1150 | |
1151 table->dst2src = ngx_palloc(cf->pool, 256); | |
1152 if (table->dst2src == NULL) { | |
1153 return NGX_CONF_ERROR; | |
1154 } | |
1155 | |
1156 for (i = 0; i < 128; i++) { | |
1157 table->src2dst[i] = (u_char) i; | |
1158 table->dst2src[i] = (u_char) i; | |
1159 } | |
1160 | |
1161 for (/* void */; i < 256; i++) { | |
1162 table->src2dst[i] = '?'; | |
1163 table->dst2src[i] = '?'; | |
1164 } | |
339
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1165 } |
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1166 |
657 | 1167 charset = mcf->charsets.elts; |
339
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1168 |
657 | 1169 ctx.table = table; |
1170 ctx.charset = &charset[dst]; | |
1171 ctx.characters = 0; | |
339
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1172 |
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1173 pvcf = *cf; |
657 | 1174 cf->ctx = &ctx; |
1175 cf->handler = ngx_http_charset_map; | |
338
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1176 cf->handler_conf = conf; |
501 | 1177 |
338
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1178 rv = ngx_conf_parse(cf, NULL); |
501 | 1179 |
339
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1180 *cf = pvcf; |
338
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1181 |
657 | 1182 if (ctx.characters) { |
1183 n = ctx.charset->length; | |
1184 ctx.charset->length /= ctx.characters; | |
1185 | |
1186 if (((n * 10) / ctx.characters) % 10 > 4) { | |
1187 ctx.charset->length++; | |
1188 } | |
1189 } | |
1190 | |
338
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1191 return rv; |
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1192 } |
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1193 |
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1194 |
501 | 1195 static char * |
657 | 1196 ngx_http_charset_map(ngx_conf_t *cf, ngx_command_t *dummy, void *conf) |
338
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|
1197 { |
657 | 1198 u_char *p, *dst2src, **pp; |
1199 uint32_t n; | |
1200 ngx_int_t src, dst; | |
1201 ngx_str_t *value; | |
1202 ngx_uint_t i; | |
1203 ngx_http_charset_tables_t *table; | |
1204 ngx_http_charset_conf_ctx_t *ctx; | |
338
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1205 |
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1206 if (cf->args->nelts != 2) { |
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|
1207 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameters number"); |
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|
1208 return NGX_CONF_ERROR; |
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|
1209 } |
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307
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|
1210 |
339
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338
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|
1211 value = cf->args->elts; |
338
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parents:
307
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|
1212 |
339
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diff
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|
1213 src = ngx_hextoi(value[0].data, value[0].len); |
338
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307
diff
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|
1214 if (src == NGX_ERROR || src > 255) { |
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parents:
307
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changeset
|
1215 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
461 | 1216 "invalid value \"%V\"", &value[0]); |
339
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338
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|
1217 return NGX_CONF_ERROR; |
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parents:
338
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|
1218 } |
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338
diff
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|
1219 |
657 | 1220 ctx = cf->ctx; |
1221 table = ctx->table; | |
1222 | |
1223 if (ctx->charset->utf8) { | |
1224 p = &table->src2dst[src * NGX_UTF_LEN]; | |
1225 | |
1226 *p++ = (u_char) (value[1].len / 2); | |
1227 | |
1228 for (i = 0; i < value[1].len; i += 2) { | |
1229 dst = ngx_hextoi(&value[1].data[i], 2); | |
1230 if (dst == NGX_ERROR || dst > 255) { | |
1231 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1232 "invalid value \"%V\"", &value[1]); | |
1233 return NGX_CONF_ERROR; | |
1234 } | |
1235 | |
1236 *p++ = (u_char) dst; | |
1237 } | |
1238 | |
1239 i /= 2; | |
1240 | |
1241 ctx->charset->length += i; | |
1242 ctx->characters++; | |
1243 | |
1244 p = &table->src2dst[src * NGX_UTF_LEN] + 1; | |
1245 | |
1246 n = ngx_utf_decode(&p, i); | |
1247 | |
1248 if (n > 0xffff) { | |
1249 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1250 "invalid value \"%V\"", &value[1]); | |
1251 return NGX_CONF_ERROR; | |
1252 } | |
1253 | |
1254 pp = (u_char **) &table->dst2src[0]; | |
1255 | |
1256 dst2src = pp[n >> 8]; | |
1257 | |
1258 if (dst2src == NULL) { | |
1259 dst2src = ngx_pcalloc(cf->pool, 256); | |
1260 if (dst2src == NULL) { | |
1261 return NGX_CONF_ERROR; | |
1262 } | |
1263 | |
1264 pp[n >> 8] = dst2src; | |
1265 } | |
1266 | |
1267 dst2src[n & 0xff] = (u_char) src; | |
1268 | |
1269 } else { | |
1270 dst = ngx_hextoi(value[1].data, value[1].len); | |
1271 if (dst == NGX_ERROR || dst > 255) { | |
1272 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1273 "invalid value \"%V\"", &value[1]); | |
1274 return NGX_CONF_ERROR; | |
1275 } | |
1276 | |
1277 table->src2dst[src] = (u_char) dst; | |
1278 table->dst2src[dst] = (u_char) src; | |
338
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1279 } |
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|
1280 |
339
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|
1281 return NGX_CONF_OK; |
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|
1282 } |
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|
1283 |
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|
1284 |
501 | 1285 static char * |
1286 ngx_http_set_charset_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
339
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|
1287 { |
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|
1288 char *p = conf; |
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|
1289 |
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|
1290 ngx_int_t *cp; |
752
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|
1291 ngx_str_t *value, var; |
339
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|
1292 ngx_http_charset_main_conf_t *mcf; |
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|
1293 |
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|
1294 cp = (ngx_int_t *) (p + cmd->offset); |
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|
1295 |
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|
1296 if (*cp != NGX_CONF_UNSET) { |
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|
1297 return "is duplicate"; |
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|
1298 } |
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|
1299 |
529 | 1300 value = cf->args->elts; |
1301 | |
1302 if (cmd->offset == offsetof(ngx_http_charset_loc_conf_t, charset) | |
1303 && ngx_strcmp(value[1].data, "off") == 0) | |
1304 { | |
1305 *cp = NGX_HTTP_NO_CHARSET; | |
1306 return NGX_CONF_OK; | |
1307 } | |
1308 | |
752
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diff
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|
1309 |
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changeset
|
1310 if (value[1].data[0] == '$') { |
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changeset
|
1311 var.len = value[1].len - 1; |
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diff
changeset
|
1312 var.data = value[1].data + 1; |
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diff
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1313 |
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diff
changeset
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1314 *cp = ngx_http_get_variable_index(cf, &var); |
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diff
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|
1315 |
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diff
changeset
|
1316 if (*cp == NGX_ERROR) { |
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1317 return NGX_CONF_ERROR; |
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diff
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|
1318 } |
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parents:
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diff
changeset
|
1319 |
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diff
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|
1320 *cp += NGX_HTTP_CHARSET_VAR; |
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changeset
|
1321 |
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diff
changeset
|
1322 return NGX_CONF_OK; |
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diff
changeset
|
1323 } |
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parents:
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diff
changeset
|
1324 |
396
6f3b20c1ac50
nginx-0.0.7-2004-07-18-23:11:20 import
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389
diff
changeset
|
1325 mcf = ngx_http_conf_get_module_main_conf(cf, |
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nginx-0.0.7-2004-07-18-23:11:20 import
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parents:
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diff
changeset
|
1326 ngx_http_charset_filter_module); |
6f3b20c1ac50
nginx-0.0.7-2004-07-18-23:11:20 import
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parents:
389
diff
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|
1327 |
339
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nginx-0.0.3-2004-05-21-20:12:13 import
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338
diff
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|
1328 *cp = ngx_http_add_charset(&mcf->charsets, &value[1]); |
8c5b69141dfd
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parents:
338
diff
changeset
|
1329 if (*cp == NGX_ERROR) { |
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
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diff
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|
1330 return NGX_CONF_ERROR; |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
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diff
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|
1331 } |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
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diff
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|
1332 |
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parents:
307
diff
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|
1333 return NGX_CONF_OK; |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
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|
1334 } |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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307
diff
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|
1335 |
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nginx-0.0.3-2004-05-20-21:33:52 import
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307
diff
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|
1336 |
501 | 1337 static ngx_int_t |
1338 ngx_http_add_charset(ngx_array_t *charsets, ngx_str_t *name) | |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
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diff
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|
1339 { |
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nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
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diff
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|
1340 ngx_uint_t i; |
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parents:
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diff
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|
1341 ngx_http_charset_t *c; |
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parents:
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diff
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|
1342 |
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nginx-0.0.3-2004-05-21-20:12:13 import
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diff
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|
1343 c = charsets->elts; |
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parents:
338
diff
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|
1344 for (i = 0; i < charsets->nelts; i++) { |
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nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
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diff
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|
1345 if (name->len != c[i].name.len) { |
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nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
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diff
changeset
|
1346 continue; |
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nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
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diff
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|
1347 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
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diff
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|
1348 |
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nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
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diff
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|
1349 if (ngx_strcasecmp(name->data, c[i].name.data) == 0) { |
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nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
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diff
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|
1350 break; |
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nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
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diff
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|
1351 } |
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nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
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diff
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|
1352 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
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|
1353 |
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nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1354 if (i < charsets->nelts) { |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
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diff
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|
1355 return i; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
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|
1356 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
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|
1357 |
501 | 1358 c = ngx_array_push(charsets); |
1359 if (c == NULL) { | |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
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diff
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|
1360 return NGX_ERROR; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
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|
1361 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1362 |
455 | 1363 c->tables = NULL; |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1364 c->name = *name; |
657 | 1365 c->length = 0; |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
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|
1366 |
523 | 1367 if (ngx_strcasecmp(name->data, "utf-8") == 0) { |
1368 c->utf8 = 1; | |
667 | 1369 |
1370 } else { | |
1371 c->utf8 = 0; | |
523 | 1372 } |
1373 | |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
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diff
changeset
|
1374 return i; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
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|
1375 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
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|
1376 |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1377 |
501 | 1378 static void * |
1379 ngx_http_charset_create_main_conf(ngx_conf_t *cf) | |
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1380 { |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1381 ngx_http_charset_main_conf_t *mcf; |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1382 |
501 | 1383 mcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_charset_main_conf_t)); |
1384 if (mcf == NULL) { | |
339
8c5b69141dfd
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parents:
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diff
changeset
|
1385 return NGX_CONF_ERROR; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1386 } |
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1387 |
501 | 1388 if (ngx_array_init(&mcf->charsets, cf->pool, 2, sizeof(ngx_http_charset_t)) |
529 | 1389 == NGX_ERROR) |
501 | 1390 { |
1391 return NGX_CONF_ERROR; | |
1392 } | |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1393 |
529 | 1394 if (ngx_array_init(&mcf->tables, cf->pool, 1, |
501 | 1395 sizeof(ngx_http_charset_tables_t)) == NGX_ERROR) |
1396 { | |
1397 return NGX_CONF_ERROR; | |
1398 } | |
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1399 |
529 | 1400 if (ngx_array_init(&mcf->recodes, cf->pool, 2, |
1401 sizeof(ngx_http_charset_recode_t)) == NGX_ERROR) | |
1402 { | |
1403 return NGX_CONF_ERROR; | |
1404 } | |
1405 | |
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1406 return mcf; |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1407 } |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1408 |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1409 |
501 | 1410 static void * |
1411 ngx_http_charset_create_loc_conf(ngx_conf_t *cf) | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1412 { |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1413 ngx_http_charset_loc_conf_t *lcf; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1414 |
501 | 1415 lcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_charset_loc_conf_t)); |
1416 if (lcf == NULL) { | |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1417 return NGX_CONF_ERROR; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1418 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1419 |
529 | 1420 lcf->charset = NGX_CONF_UNSET; |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1421 lcf->source_charset = NGX_CONF_UNSET; |
635 | 1422 lcf->override_charset = NGX_CONF_UNSET; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1423 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1424 return lcf; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1425 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1426 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1427 |
501 | 1428 static char * |
1429 ngx_http_charset_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1430 { |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1431 ngx_http_charset_loc_conf_t *prev = parent; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1432 ngx_http_charset_loc_conf_t *conf = child; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1433 |
529 | 1434 ngx_uint_t i; |
1435 ngx_http_charset_recode_t *recode; | |
1436 ngx_http_charset_main_conf_t *mcf; | |
477 | 1437 |
635 | 1438 ngx_conf_merge_value(conf->override_charset, prev->override_charset, 0); |
529 | 1439 ngx_conf_merge_value(conf->charset, prev->charset, NGX_HTTP_NO_CHARSET); |
477 | 1440 |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1441 if (conf->source_charset == NGX_CONF_UNSET) { |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1442 conf->source_charset = prev->source_charset; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1443 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1444 |
529 | 1445 if (conf->charset == NGX_HTTP_NO_CHARSET |
1446 || conf->source_charset == NGX_CONF_UNSET | |
1447 || conf->charset == conf->source_charset) | |
477 | 1448 { |
529 | 1449 return NGX_CONF_OK; |
477 | 1450 } |
1451 | |
529 | 1452 mcf = ngx_http_conf_get_module_main_conf(cf, |
1453 ngx_http_charset_filter_module); | |
1454 recode = mcf->recodes.elts; | |
1455 for (i = 0; i < mcf->recodes.nelts; i++) { | |
1456 if (conf->source_charset == recode[i].src | |
1457 && conf->charset == recode[i].dst) | |
1458 { | |
1459 return NGX_CONF_OK; | |
1460 } | |
477 | 1461 } |
1462 | |
529 | 1463 recode = ngx_array_push(&mcf->recodes); |
1464 if (recode == NULL) { | |
477 | 1465 return NGX_CONF_ERROR; |
1466 } | |
340
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
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parents:
339
diff
changeset
|
1467 |
529 | 1468 recode->src = conf->source_charset; |
1469 recode->dst = conf->charset; | |
1470 | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1471 return NGX_CONF_OK; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1472 } |
529 | 1473 |
1474 | |
1475 static ngx_int_t | |
1476 ngx_http_charset_postconfiguration(ngx_conf_t *cf) | |
1477 { | |
635 | 1478 u_char **src, **dst; |
529 | 1479 ngx_int_t c; |
1480 ngx_uint_t i, t; | |
1481 ngx_http_charset_t *charset; | |
1482 ngx_http_charset_recode_t *recode; | |
1483 ngx_http_charset_tables_t *tables; | |
1484 ngx_http_charset_main_conf_t *mcf; | |
1485 | |
1486 mcf = ngx_http_conf_get_module_main_conf(cf, | |
1487 ngx_http_charset_filter_module); | |
1488 | |
1489 recode = mcf->recodes.elts; | |
1490 tables = mcf->tables.elts; | |
1491 charset = mcf->charsets.elts; | |
1492 | |
1493 for (i = 0; i < mcf->recodes.nelts; i++) { | |
1494 | |
1495 c = recode[i].src; | |
1496 | |
1497 for (t = 0; t < mcf->tables.nelts; t++) { | |
1498 | |
1499 if (c == tables[t].src && recode[i].dst == tables[t].dst) { | |
1500 goto next; | |
1501 } | |
1502 | |
1503 if (c == tables[t].dst && recode[i].dst == tables[t].src) { | |
1504 goto next; | |
1505 } | |
1506 } | |
1507 | |
1508 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
1509 " no \"charset_map\" between the charsets " | |
1510 "\"%V\" and \"%V\"", | |
1511 &charset[c].name, &charset[recode[i].dst].name); | |
1512 return NGX_ERROR; | |
1513 | |
1514 next: | |
1515 continue; | |
1516 } | |
1517 | |
635 | 1518 |
1519 for (t = 0; t < mcf->tables.nelts; t++) { | |
1520 | |
1521 src = charset[tables[t].src].tables; | |
1522 | |
1523 if (src == NULL) { | |
1524 src = ngx_pcalloc(cf->pool, sizeof(u_char *) * mcf->charsets.nelts); | |
1525 if (src == NULL) { | |
1526 return NGX_ERROR; | |
1527 } | |
1528 | |
1529 charset[tables[t].src].tables = src; | |
1530 } | |
1531 | |
1532 dst = charset[tables[t].dst].tables; | |
1533 | |
1534 if (dst == NULL) { | |
1535 dst = ngx_pcalloc(cf->pool, sizeof(u_char *) * mcf->charsets.nelts); | |
1536 if (dst == NULL) { | |
1537 return NGX_ERROR; | |
1538 } | |
1539 | |
1540 charset[tables[t].dst].tables = dst; | |
1541 } | |
1542 | |
1543 src[tables[t].dst] = tables[t].src2dst; | |
1544 dst[tables[t].src] = tables[t].dst2src; | |
1545 } | |
1546 | |
681 | 1547 ngx_http_next_header_filter = ngx_http_top_header_filter; |
1548 ngx_http_top_header_filter = ngx_http_charset_header_filter; | |
1549 | |
1550 ngx_http_next_body_filter = ngx_http_top_body_filter; | |
1551 ngx_http_top_body_filter = ngx_http_charset_body_filter; | |
1552 | |
529 | 1553 return NGX_OK; |
1554 } |