Mercurial > hg > nginx
annotate src/http/modules/ngx_http_charset_filter_module.c @ 661:9079ee4735ae release-0.3.52
nginx-0.3.52-RELEASE import
*) Change: the ngx_http_index_module behavior for the "POST /" requests
is reverted to the 0.3.40 version state: the module now does not
return the 405 error.
*) Bugfix: the worker process may got caught in an endless loop if the
limit rate was used; the bug had appeared in 0.3.37.
*) Bugfix: ngx_http_charset_module logged "unknown charset" alert, even
if the recoding was not needed; the bug had appeared in 0.3.50.
*) Bugfix: if a code response of the PUT request was 409, then a
temporary file was not removed.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Mon, 03 Jul 2006 16:49:20 +0000 |
parents | 649c9063d0fd |
children | 6d5c1535bb9d |
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 |
13 | |
14 /* 1 byte length and up to 3 bytes for the UTF-8 encoding of the UCS-2 */ | |
15 #define NGX_UTF_LEN 4 | |
16 | |
17 #define NGX_HTML_ENTITY_LEN (sizeof("") - 1) | |
529 | 18 |
19 | |
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20 typedef struct { |
657 | 21 u_char **tables; |
22 ngx_str_t name; | |
523 | 23 |
657 | 24 unsigned length:16; |
25 unsigned utf8:1; | |
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26 } ngx_http_charset_t; |
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27 |
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28 |
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29 typedef struct { |
657 | 30 ngx_int_t src; |
31 ngx_int_t dst; | |
529 | 32 } ngx_http_charset_recode_t; |
33 | |
34 | |
35 typedef struct { | |
657 | 36 ngx_int_t src; |
37 ngx_int_t dst; | |
38 u_char *src2dst; | |
39 u_char *dst2src; | |
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40 } ngx_http_charset_tables_t; |
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41 |
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42 |
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43 typedef struct { |
657 | 44 ngx_array_t charsets; /* ngx_http_charset_t */ |
45 ngx_array_t tables; /* ngx_http_charset_tables_t */ | |
46 ngx_array_t recodes; /* ngx_http_charset_recode_t */ | |
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47 } ngx_http_charset_main_conf_t; |
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50 typedef struct { |
657 | 51 ngx_int_t charset; |
52 ngx_int_t source_charset; | |
53 ngx_flag_t override_charset; | |
99
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54 } ngx_http_charset_loc_conf_t; |
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55 |
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57 typedef struct { |
657 | 58 u_char *table; |
59 ngx_int_t charset; | |
60 | |
61 ngx_chain_t *busy; | |
62 ngx_chain_t *free_bufs; | |
63 ngx_chain_t *free_buffers; | |
64 | |
65 size_t saved_len; | |
66 u_char saved[NGX_UTF_LEN]; | |
67 | |
68 unsigned length:16; | |
69 unsigned from_utf8:1; | |
70 unsigned to_utf8:1; | |
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71 } ngx_http_charset_ctx_t; |
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72 |
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73 |
657 | 74 typedef struct { |
75 ngx_http_charset_tables_t *table; | |
76 ngx_http_charset_t *charset; | |
77 ngx_uint_t characters; | |
78 } ngx_http_charset_conf_ctx_t; | |
79 | |
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80 |
657 | 81 static ngx_int_t ngx_http_charset_get_charset(ngx_http_charset_t *charsets, |
82 ngx_uint_t n, u_char *charset); | |
83 static ngx_int_t ngx_http_charset_set_charset(ngx_http_request_t *r, | |
84 ngx_http_charset_t *charsets, ngx_int_t charset, ngx_int_t source_charset); | |
85 static ngx_uint_t ngx_http_charset_recode(ngx_buf_t *b, u_char *table); | |
86 static ngx_chain_t *ngx_http_charset_recode_from_utf8(ngx_pool_t *pool, | |
87 ngx_buf_t *buf, ngx_http_charset_ctx_t *ctx); | |
88 static ngx_chain_t *ngx_http_charset_recode_to_utf8(ngx_pool_t *pool, | |
89 ngx_buf_t *buf, ngx_http_charset_ctx_t *ctx); | |
90 | |
91 static ngx_chain_t *ngx_http_charset_get_buf(ngx_pool_t *pool, | |
92 ngx_http_charset_ctx_t *ctx); | |
93 static ngx_chain_t *ngx_http_charset_get_buffer(ngx_pool_t *pool, | |
94 ngx_http_charset_ctx_t *ctx, size_t size); | |
95 | |
96 static char *ngx_http_charset_map_block(ngx_conf_t *cf, ngx_command_t *cmd, | |
501 | 97 void *conf); |
657 | 98 static char *ngx_http_charset_map(ngx_conf_t *cf, ngx_command_t *dummy, |
99 void *conf); | |
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101 static char *ngx_http_set_charset_slot(ngx_conf_t *cf, ngx_command_t *cmd, |
501 | 102 void *conf); |
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103 static ngx_int_t ngx_http_add_charset(ngx_array_t *charsets, ngx_str_t *name); |
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104 |
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105 static ngx_int_t ngx_http_charset_filter_init(ngx_cycle_t *cycle); |
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106 |
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107 static void *ngx_http_charset_create_main_conf(ngx_conf_t *cf); |
119
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108 static void *ngx_http_charset_create_loc_conf(ngx_conf_t *cf); |
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109 static char *ngx_http_charset_merge_loc_conf(ngx_conf_t *cf, |
501 | 110 void *parent, void *child); |
529 | 111 static ngx_int_t ngx_http_charset_postconfiguration(ngx_conf_t *cf); |
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112 |
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113 |
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114 static ngx_command_t ngx_http_charset_filter_commands[] = { |
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115 |
529 | 116 { ngx_string("charset"), |
559 | 117 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF |
118 |NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
529 | 119 ngx_http_set_charset_slot, |
120 NGX_HTTP_LOC_CONF_OFFSET, | |
121 offsetof(ngx_http_charset_loc_conf_t, charset), | |
122 NULL }, | |
123 | |
124 { ngx_string("source_charset"), | |
559 | 125 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF |
126 |NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
529 | 127 ngx_http_set_charset_slot, |
128 NGX_HTTP_LOC_CONF_OFFSET, | |
129 offsetof(ngx_http_charset_loc_conf_t, source_charset), | |
130 NULL }, | |
131 | |
635 | 132 { ngx_string("override_charset"), |
133 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF | |
134 |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG, | |
135 ngx_conf_set_flag_slot, | |
136 NGX_HTTP_LOC_CONF_OFFSET, | |
137 offsetof(ngx_http_charset_loc_conf_t, override_charset), | |
138 NULL }, | |
139 | |
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140 { ngx_string("charset_map"), |
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141 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE2, |
657 | 142 ngx_http_charset_map_block, |
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143 NGX_HTTP_MAIN_CONF_OFFSET, |
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144 0, |
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145 NULL }, |
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147 ngx_null_command |
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148 }; |
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149 |
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150 |
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151 static ngx_http_module_t ngx_http_charset_filter_module_ctx = { |
509 | 152 NULL, /* preconfiguration */ |
529 | 153 ngx_http_charset_postconfiguration, /* postconfiguration */ |
177
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155 ngx_http_charset_create_main_conf, /* create main configuration */ |
529 | 156 NULL, /* init main configuration */ |
99
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157 |
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158 NULL, /* create server configuration */ |
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159 NULL, /* merge server configuration */ |
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160 |
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161 ngx_http_charset_create_loc_conf, /* create location configuration */ |
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162 ngx_http_charset_merge_loc_conf /* merge location configuration */ |
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163 }; |
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164 |
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165 |
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166 ngx_module_t ngx_http_charset_filter_module = { |
509 | 167 NGX_MODULE_V1, |
99
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168 &ngx_http_charset_filter_module_ctx, /* module context */ |
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169 ngx_http_charset_filter_commands, /* module directives */ |
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170 NGX_HTTP_MODULE, /* module type */ |
541 | 171 NULL, /* init master */ |
110
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172 ngx_http_charset_filter_init, /* init module */ |
541 | 173 NULL, /* init process */ |
174 NULL, /* init thread */ | |
175 NULL, /* exit thread */ | |
176 NULL, /* exit process */ | |
177 NULL, /* exit master */ | |
178 NGX_MODULE_V1_PADDING | |
99
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179 }; |
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180 |
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181 |
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182 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
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183 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; |
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184 |
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185 |
501 | 186 static ngx_int_t |
187 ngx_http_charset_header_filter(ngx_http_request_t *r) | |
99
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188 { |
657 | 189 u_char *ct; |
635 | 190 ngx_int_t charset, source_charset; |
657 | 191 ngx_str_t *mc; |
192 ngx_uint_t n; | |
339
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193 ngx_http_charset_t *charsets; |
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194 ngx_http_charset_ctx_t *ctx; |
653 | 195 ngx_http_charset_loc_conf_t *lcf, *mlcf; |
339
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196 ngx_http_charset_main_conf_t *mcf; |
99
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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, |
215 r->headers_out.override_charset->data); | |
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 } | |
653 | 248 } |
249 | |
250 } else { | |
657 | 251 ctx = ngx_http_get_module_ctx(r->main, ngx_http_charset_filter_module); |
252 | |
253 if (ctx == NULL) { | |
254 | |
255 mc = &r->main->headers_out.charset; | |
256 | |
257 if (mc->len == 0) { | |
258 return ngx_http_next_header_filter(r); | |
259 } | |
260 | |
261 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_charset_ctx_t)); | |
262 if (ctx == NULL) { | |
263 return NGX_ERROR; | |
264 } | |
265 | |
266 ngx_http_set_ctx(r->main, ctx, ngx_http_charset_filter_module); | |
653 | 267 |
657 | 268 charset = ngx_http_charset_get_charset(charsets, n, mc->data); |
269 | |
270 ctx->charset = charset; | |
271 | |
661 | 272 } else { |
273 charset = ctx->charset; | |
653 | 274 } |
389
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275 } |
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276 |
657 | 277 /* source charset */ |
635 | 278 |
657 | 279 if (r->headers_out.charset.len == 0) { |
280 lcf = ngx_http_get_module_loc_conf(r, ngx_http_charset_filter_module); | |
635 | 281 |
661 | 282 if (charset != NGX_HTTP_NO_CHARSET) { |
283 return ngx_http_charset_set_charset(r, mcf->charsets.elts, charset, | |
284 lcf->source_charset); | |
285 } | |
286 | |
287 if (lcf->source_charset == NGX_CONF_UNSET) { | |
288 return ngx_http_next_header_filter(r); | |
289 } | |
290 | |
291 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
292 "no \"charset_map\" between the charsets " | |
293 "\"%V\" and \"%V\"", | |
294 &charsets[lcf->source_charset].name, | |
295 &r->main->headers_out.charset); | |
296 | |
297 return ngx_http_next_header_filter(r); | |
657 | 298 } |
635 | 299 |
657 | 300 source_charset = ngx_http_charset_get_charset(charsets, n, |
301 r->headers_out.charset.data); | |
635 | 302 |
661 | 303 if (charset == NGX_HTTP_NO_CHARSET |
304 || source_charset == NGX_HTTP_NO_CHARSET) | |
305 { | |
306 if (charset != source_charset | |
307 || ngx_strcasecmp(r->main->headers_out.charset.data, | |
308 r->headers_out.charset.data) | |
309 != 0) | |
310 { | |
311 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
312 "no \"charset_map\" between the charsets " | |
313 "\"%V\" and \"%V\"", | |
314 &r->headers_out.charset, | |
315 &r->main->headers_out.charset); | |
316 } | |
635 | 317 |
657 | 318 return ngx_http_next_header_filter(r); |
319 } | |
635 | 320 |
657 | 321 if (source_charset != charset |
322 && (charsets[source_charset].tables == NULL | |
323 || charsets[source_charset].tables[charset] == NULL)) | |
324 { | |
661 | 325 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
657 | 326 "no \"charset_map\" between the charsets " |
327 "\"%V\" and \"%V\"", | |
328 &charsets[source_charset].name, &charsets[charset].name); | |
635 | 329 |
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330 return ngx_http_next_header_filter(r); |
133
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331 } |
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332 |
657 | 333 r->headers_out.content_type.len = r->headers_out.content_type_len; |
334 | |
335 return ngx_http_charset_set_charset(r, mcf->charsets.elts, charset, | |
336 source_charset); | |
337 } | |
338 | |
339 | |
340 static ngx_int_t | |
341 ngx_http_charset_get_charset(ngx_http_charset_t *charsets, ngx_uint_t n, | |
342 u_char *charset) | |
343 { | |
344 ngx_uint_t i; | |
345 | |
346 for (i = 0; i < n; i++) { | |
347 if (ngx_strcasecmp(charsets[i].name.data, charset) == 0) { | |
348 return i; | |
349 } | |
350 } | |
351 | |
352 return NGX_HTTP_NO_CHARSET; | |
353 } | |
354 | |
355 | |
356 static ngx_int_t | |
357 ngx_http_charset_set_charset(ngx_http_request_t *r, | |
358 ngx_http_charset_t *charsets, ngx_int_t charset, ngx_int_t source_charset) | |
359 { | |
360 ngx_http_charset_ctx_t *ctx; | |
361 | |
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362 if (r->headers_out.status == NGX_HTTP_MOVED_PERMANENTLY |
501 | 363 || r->headers_out.status == NGX_HTTP_MOVED_TEMPORARILY) |
99
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364 { |
155
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365 /* |
635 | 366 * do not set charset for the redirect because NN 4.x |
367 * use this charset instead of the next page charset | |
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368 */ |
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369 |
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370 r->headers_out.charset.len = 0; |
657 | 371 |
339
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372 return ngx_http_next_header_filter(r); |
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373 } |
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374 |
635 | 375 r->headers_out.charset = charsets[charset].name; |
376 r->utf8 = charsets[charset].utf8; | |
377 | |
378 if (source_charset == NGX_CONF_UNSET || source_charset == charset) { | |
339
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379 return ngx_http_next_header_filter(r); |
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380 } |
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381 |
501 | 382 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_charset_ctx_t)); |
383 if (ctx == NULL) { | |
384 return NGX_ERROR; | |
385 } | |
386 | |
387 ngx_http_set_ctx(r, ctx, ngx_http_charset_filter_module); | |
388 | |
635 | 389 ctx->table = charsets[source_charset].tables[charset]; |
390 ctx->charset = charset; | |
657 | 391 ctx->length = charsets[charset].length; |
392 ctx->from_utf8 = charsets[source_charset].utf8; | |
393 ctx->to_utf8 = charsets[charset].utf8; | |
394 | |
395 if ((ctx->to_utf8 || ctx->from_utf8) && r == r->main) { | |
396 ngx_http_clear_content_length(r); | |
397 } | |
339
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398 |
346
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399 r->filter_need_in_memory = 1; |
339
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400 |
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401 return ngx_http_next_header_filter(r); |
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402 } |
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403 |
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404 |
501 | 405 static ngx_int_t |
406 ngx_http_charset_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
99
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407 { |
657 | 408 ngx_int_t rc; |
409 ngx_buf_t *b; | |
410 ngx_chain_t *cl, *out, **ll; | |
635 | 411 ngx_http_charset_ctx_t *ctx; |
339
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412 |
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413 ctx = ngx_http_get_module_ctx(r, ngx_http_charset_filter_module); |
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414 |
635 | 415 if (ctx == NULL || ctx->table == NULL) { |
339
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416 return ngx_http_next_body_filter(r, in); |
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417 } |
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418 |
657 | 419 if ((ctx->to_utf8 || ctx->from_utf8) || ctx->busy) { |
420 | |
421 out = NULL; | |
422 ll = &out; | |
423 | |
424 for (cl = in; cl; cl = cl->next) { | |
425 b = cl->buf; | |
426 | |
427 if (ngx_buf_size(b) == 0) { | |
428 continue; | |
429 } | |
430 | |
431 if (ctx->to_utf8) { | |
432 *ll = ngx_http_charset_recode_to_utf8(r->pool, b, ctx); | |
433 | |
434 } else { | |
435 *ll = ngx_http_charset_recode_from_utf8(r->pool, b, ctx); | |
436 } | |
437 | |
438 if (*ll == NULL) { | |
439 return NGX_ERROR; | |
440 } | |
441 | |
442 while (*ll) { | |
443 ll = &(*ll)->next; | |
444 } | |
445 } | |
446 | |
447 rc = ngx_http_next_body_filter(r, out); | |
448 | |
449 if (out) { | |
450 if (ctx->busy == NULL) { | |
451 ctx->busy = out; | |
452 | |
453 } else { | |
454 for (cl = ctx->busy; cl->next; cl = cl->next) { /* void */ } | |
455 cl->next = out; | |
456 } | |
457 } | |
458 | |
459 while (ctx->busy) { | |
460 | |
461 cl = ctx->busy; | |
462 b = cl->buf; | |
463 | |
464 if (ngx_buf_size(b) != 0) { | |
465 break; | |
466 } | |
467 | |
468 #if (NGX_HAVE_WRITE_ZEROCOPY) | |
469 if (b->zerocopy_busy) { | |
470 break; | |
471 } | |
472 #endif | |
473 | |
474 ctx->busy = cl->next; | |
475 | |
476 if (b->tag != (ngx_buf_tag_t) &ngx_http_charset_filter_module) { | |
477 continue; | |
478 } | |
479 | |
480 if (b->shadow) { | |
481 b->shadow->pos = b->shadow->last; | |
482 } | |
483 | |
484 if (b->pos) { | |
485 cl->next = ctx->free_buffers; | |
486 ctx->free_buffers = cl; | |
487 continue; | |
488 } | |
489 | |
490 cl->next = ctx->free_bufs; | |
491 ctx->free_bufs = cl; | |
492 } | |
493 | |
494 return rc; | |
495 } | |
496 | |
339
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497 for (cl = in; cl; cl = cl->next) { |
635 | 498 (void) ngx_http_charset_recode(cl->buf, ctx->table); |
339
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499 } |
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500 |
155
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501 return ngx_http_next_body_filter(r, in); |
99
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502 } |
339
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503 |
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504 |
501 | 505 static ngx_uint_t |
635 | 506 ngx_http_charset_recode(ngx_buf_t *b, u_char *table) |
339
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507 { |
635 | 508 u_char *p; |
339
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509 |
343
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diff
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510 for (p = b->pos; p < b->last; p++) { |
635 | 511 |
512 if (*p == table[*p]) { | |
513 continue; | |
455 | 514 } |
515 | |
516 while (p < b->last) { | |
517 *p = table[*p]; | |
518 p++; | |
519 } | |
520 | |
521 b->in_file = 0; | |
635 | 522 |
523 return 1; | |
455 | 524 } |
525 | |
635 | 526 return 0; |
339
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527 } |
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528 |
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529 |
657 | 530 static ngx_chain_t * |
531 ngx_http_charset_recode_from_utf8(ngx_pool_t *pool, ngx_buf_t *buf, | |
532 ngx_http_charset_ctx_t *ctx) | |
533 { | |
534 size_t len, size; | |
535 u_char c, *p, *src, *dst, *saved, **table; | |
536 uint32_t n; | |
537 ngx_buf_t *b; | |
538 ngx_uint_t i; | |
539 ngx_chain_t *out, *cl, **ll; | |
540 | |
541 src = buf->pos; | |
542 | |
543 if (ctx->saved_len == 0) { | |
544 | |
545 for ( /* void */ ; src < buf->last; src++) { | |
546 | |
547 if (*src < 0x80) { | |
548 continue; | |
549 } | |
550 | |
551 len = src - buf->pos; | |
552 | |
553 if (len > 512) { | |
554 out = ngx_http_charset_get_buf(pool, ctx); | |
555 if (out == NULL) { | |
556 return NULL; | |
557 } | |
558 | |
559 b = out->buf; | |
560 | |
561 b->temporary = buf->temporary; | |
562 b->memory = buf->memory; | |
563 b->mmap = buf->mmap; | |
564 b->flush = buf->flush; | |
565 | |
566 b->pos = buf->pos; | |
567 b->last = src; | |
568 | |
569 out->buf = b; | |
570 out->next = NULL; | |
571 | |
572 size = buf->last - src; | |
573 | |
574 saved = src; | |
575 n = ngx_utf_decode(&saved, size); | |
576 | |
577 if (n == 0xfffffffe) { | |
578 /* incomplete UTF-8 symbol */ | |
579 | |
580 ngx_memcpy(ctx->saved, src, size); | |
581 ctx->saved_len = size; | |
582 | |
583 b->shadow = buf; | |
584 | |
585 return out; | |
586 } | |
587 | |
588 } else { | |
589 out = NULL; | |
590 size = len + buf->last - src; | |
591 src = buf->pos; | |
592 } | |
593 | |
594 if (size < NGX_HTML_ENTITY_LEN) { | |
595 size += NGX_HTML_ENTITY_LEN; | |
596 } | |
597 | |
598 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
599 if (cl == NULL) { | |
600 return NULL; | |
601 } | |
602 | |
603 if (out) { | |
604 out->next = cl; | |
605 | |
606 } else { | |
607 out = cl; | |
608 } | |
609 | |
610 b = cl->buf; | |
611 dst = b->pos; | |
612 | |
613 goto recode; | |
614 } | |
615 | |
616 out = ngx_alloc_chain_link(pool); | |
617 if (out == NULL) { | |
618 return NULL; | |
619 } | |
620 | |
621 out->buf = buf; | |
622 out->next = NULL; | |
623 | |
624 return out; | |
625 } | |
626 | |
627 /* process incomplete UTF sequence from previous buffer */ | |
628 | |
629 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
630 "http charset utf saved: %z", ctx->saved_len); | |
631 | |
632 p = src; | |
633 | |
634 for (i = ctx->saved_len; i < NGX_UTF_LEN; i++) { | |
635 ctx->saved[i] = *p++; | |
636 | |
637 if (p == buf->last) { | |
638 break; | |
639 } | |
640 } | |
641 | |
642 saved = ctx->saved; | |
643 n = ngx_utf_decode(&saved, i); | |
644 | |
645 c = '\0'; | |
646 | |
647 if (n < 0x10000) { | |
648 table = (u_char **) ctx->table; | |
649 p = table[n >> 8]; | |
650 | |
651 if (p) { | |
652 c = p[n & 0xff]; | |
653 } | |
654 | |
655 } else if (n == 0xfffffffe) { | |
656 | |
657 /* incomplete UTF-8 symbol */ | |
658 | |
659 if (i < NGX_UTF_LEN) { | |
660 out = ngx_http_charset_get_buf(pool, ctx); | |
661 if (out == NULL) { | |
662 return NULL; | |
663 } | |
664 | |
665 b = out->buf; | |
666 | |
667 b->pos = buf->pos; | |
668 b->last = buf->last; | |
669 b->sync = 1; | |
670 b->shadow = buf; | |
671 | |
672 ngx_memcpy(&ctx->saved[ctx->saved_len], src, i); | |
673 ctx->saved_len += i; | |
674 | |
675 return out; | |
676 } | |
677 } | |
678 | |
679 size = buf->last - buf->pos; | |
680 | |
681 if (size < NGX_HTML_ENTITY_LEN) { | |
682 size += NGX_HTML_ENTITY_LEN; | |
683 } | |
684 | |
685 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
686 if (cl == NULL) { | |
687 return NULL; | |
688 } | |
689 | |
690 out = cl; | |
691 | |
692 b = cl->buf; | |
693 dst = b->pos; | |
694 | |
695 if (c) { | |
696 *dst++ = c; | |
697 | |
698 } else if (n == 0xfffffffe) { | |
699 *dst++ = '?'; | |
700 | |
701 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
702 "http charset invalid utf 0"); | |
703 | |
704 saved = &ctx->saved[NGX_UTF_LEN]; | |
705 | |
706 } else if (n > 0x10ffff) { | |
707 *dst++ = '?'; | |
708 | |
709 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
710 "http charset invalid utf 1"); | |
711 | |
712 } else { | |
713 dst = ngx_sprintf(dst, "&#%uD;", n); | |
714 } | |
715 | |
716 src += (saved - ctx->saved) - ctx->saved_len; | |
717 ctx->saved_len = 0; | |
718 | |
719 recode: | |
720 | |
721 ll = &cl->next; | |
722 | |
723 table = (u_char **) ctx->table; | |
724 | |
725 while (src < buf->last) { | |
726 | |
727 if ((size_t) (b->end - dst) < NGX_HTML_ENTITY_LEN) { | |
728 b->last = dst; | |
729 | |
730 size = buf->last - src + NGX_HTML_ENTITY_LEN; | |
731 | |
732 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
733 if (cl == NULL) { | |
734 return NULL; | |
735 } | |
736 | |
737 *ll = cl; | |
738 ll = &cl->next; | |
739 | |
740 b = cl->buf; | |
741 dst = b->pos; | |
742 } | |
743 | |
744 if (*src < 0x80) { | |
745 *dst++ = *src++; | |
746 continue; | |
747 } | |
748 | |
749 len = buf->last - src; | |
750 | |
751 n = ngx_utf_decode(&src, len); | |
752 | |
753 if (n < 0x10000) { | |
754 | |
755 p = table[n >> 8]; | |
756 | |
757 if (p) { | |
758 c = p[n & 0xff]; | |
759 | |
760 if (c) { | |
761 *dst++ = c; | |
762 continue; | |
763 } | |
764 } | |
765 | |
766 dst = ngx_sprintf(dst, "&#%uD;", n); | |
767 | |
768 continue; | |
769 } | |
770 | |
771 if (n == 0xfffffffe) { | |
772 /* incomplete UTF-8 symbol */ | |
773 | |
774 ngx_memcpy(ctx->saved, src, len); | |
775 ctx->saved_len = len; | |
776 | |
777 if (b->pos == dst) { | |
778 b->sync = 1; | |
779 b->temporary = 0; | |
780 } | |
781 | |
782 break; | |
783 } | |
784 | |
785 if (n > 0x10ffff) { | |
786 *dst++ = '?'; | |
787 | |
788 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
789 "http charset invalid utf 2"); | |
790 | |
791 continue; | |
792 } | |
793 | |
794 /* n > 0xffff */ | |
795 | |
796 dst = ngx_sprintf(dst, "&#%uD;", n); | |
797 } | |
798 | |
799 b->last = dst; | |
800 | |
801 b->last_buf = buf->last_buf; | |
802 b->last_in_chain = buf->last_in_chain; | |
803 b->flush = buf->flush; | |
804 | |
805 b->shadow = buf; | |
806 | |
807 return out; | |
808 } | |
809 | |
810 | |
811 static ngx_chain_t * | |
812 ngx_http_charset_recode_to_utf8(ngx_pool_t *pool, ngx_buf_t *buf, | |
813 ngx_http_charset_ctx_t *ctx) | |
814 { | |
815 size_t len, size; | |
816 u_char *p, *src, *dst, *table; | |
817 ngx_buf_t *b; | |
818 ngx_chain_t *out, *cl, **ll; | |
819 | |
820 table = ctx->table; | |
821 | |
822 for (src = buf->pos; src < buf->last; src++) { | |
823 if (table[*src * NGX_UTF_LEN] == '\1') { | |
824 continue; | |
825 } | |
826 | |
827 goto recode; | |
828 } | |
829 | |
830 out = ngx_alloc_chain_link(pool); | |
831 if (out == NULL) { | |
832 return NULL; | |
833 } | |
834 | |
835 out->buf = buf; | |
836 out->next = NULL; | |
837 | |
838 return out; | |
839 | |
840 recode: | |
841 | |
842 /* | |
843 * we assume that there are about half of characters to be recoded, | |
844 * so we preallocate "size / 2 + size / 2 * ctx->length" | |
845 */ | |
846 | |
847 len = src - buf->pos; | |
848 | |
849 if (len > 512) { | |
850 out = ngx_http_charset_get_buf(pool, ctx); | |
851 if (out == NULL) { | |
852 return NULL; | |
853 } | |
854 | |
855 b = out->buf; | |
856 | |
857 b->temporary = buf->temporary; | |
858 b->memory = buf->memory; | |
859 b->mmap = buf->mmap; | |
860 b->flush = buf->flush; | |
861 | |
862 b->pos = buf->pos; | |
863 b->last = src; | |
864 | |
865 out->buf = b; | |
866 out->next = NULL; | |
867 | |
868 size = buf->last - src; | |
869 size = size / 2 + size / 2 * ctx->length; | |
870 | |
871 } else { | |
872 out = NULL; | |
873 | |
874 size = buf->last - src; | |
875 size = len + size / 2 + size / 2 * ctx->length; | |
876 | |
877 src = buf->pos; | |
878 } | |
879 | |
880 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
881 if (cl == NULL) { | |
882 return NULL; | |
883 } | |
884 | |
885 if (out) { | |
886 out->next = cl; | |
887 | |
888 } else { | |
889 out = cl; | |
890 } | |
891 | |
892 ll = &cl->next; | |
893 | |
894 b = cl->buf; | |
895 dst = b->pos; | |
896 | |
897 while (src < buf->last) { | |
898 | |
899 p = &table[*src++ * NGX_UTF_LEN]; | |
900 len = *p++; | |
901 | |
902 if ((size_t) (b->end - dst) < len) { | |
903 b->last = dst; | |
904 | |
905 size = buf->last - src; | |
906 size = len + size / 2 + size / 2 * ctx->length; | |
907 | |
908 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
909 if (cl == NULL) { | |
910 return NULL; | |
911 } | |
912 | |
913 *ll = cl; | |
914 ll = &cl->next; | |
915 | |
916 b = cl->buf; | |
917 dst = b->pos; | |
918 } | |
919 | |
920 while (len) { | |
921 *dst++ = *p++; | |
922 len--; | |
923 } | |
924 } | |
925 | |
926 b->last = dst; | |
927 | |
928 b->last_buf = buf->last_buf; | |
929 b->last_in_chain = buf->last_in_chain; | |
930 b->flush = buf->flush; | |
931 | |
932 b->shadow = buf; | |
933 | |
934 return out; | |
935 } | |
936 | |
937 | |
938 static ngx_chain_t * | |
939 ngx_http_charset_get_buf(ngx_pool_t *pool, ngx_http_charset_ctx_t *ctx) | |
940 { | |
941 ngx_chain_t *cl; | |
942 | |
943 cl = ctx->free_bufs; | |
944 | |
945 if (cl) { | |
946 ctx->free_bufs = cl->next; | |
947 | |
948 cl->buf->shadow = NULL; | |
949 cl->next = NULL; | |
950 | |
951 return cl; | |
952 } | |
953 | |
954 cl = ngx_alloc_chain_link(pool); | |
955 if (cl == NULL) { | |
956 return NULL; | |
957 } | |
958 | |
959 cl->buf = ngx_calloc_buf(pool); | |
960 if (cl->buf == NULL) { | |
961 return NULL; | |
962 } | |
963 | |
964 cl->next = NULL; | |
965 | |
966 cl->buf->tag = (ngx_buf_tag_t) &ngx_http_charset_filter_module; | |
967 | |
968 return cl; | |
969 } | |
970 | |
971 | |
972 static ngx_chain_t * | |
973 ngx_http_charset_get_buffer(ngx_pool_t *pool, ngx_http_charset_ctx_t *ctx, | |
974 size_t size) | |
975 { | |
976 ngx_buf_t *b; | |
977 ngx_chain_t *cl, **ll; | |
978 | |
979 for (ll = &ctx->free_buffers, cl = ctx->free_buffers; | |
980 cl; | |
981 ll = &cl->next, cl = cl->next) | |
982 { | |
983 b = cl->buf; | |
984 | |
985 if ((size_t) (b->end - b->start) >= size) { | |
986 *ll = cl->next; | |
987 cl->next = NULL; | |
988 | |
989 b->pos = b->start; | |
990 b->temporary = 1; | |
991 b->shadow = NULL; | |
992 | |
993 return cl; | |
994 } | |
995 } | |
996 | |
997 cl = ngx_alloc_chain_link(pool); | |
998 if (cl == NULL) { | |
999 return NULL; | |
1000 } | |
1001 | |
1002 cl->buf = ngx_create_temp_buf(pool, size); | |
1003 if (cl->buf == NULL) { | |
1004 return NULL; | |
1005 } | |
1006 | |
1007 cl->next = NULL; | |
1008 | |
1009 cl->buf->temporary = 1; | |
1010 cl->buf->tag = (ngx_buf_tag_t) &ngx_http_charset_filter_module; | |
1011 | |
1012 return cl; | |
1013 } | |
1014 | |
1015 | |
501 | 1016 static char * |
657 | 1017 ngx_http_charset_map_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
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1018 { |
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1019 ngx_http_charset_main_conf_t *mcf = conf; |
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1020 |
657 | 1021 char *rv; |
1022 u_char *p, *dst2src, **pp; | |
1023 ngx_int_t src, dst; | |
1024 ngx_uint_t i, n; | |
1025 ngx_str_t *value; | |
1026 ngx_conf_t pvcf; | |
1027 ngx_http_charset_t *charset; | |
1028 ngx_http_charset_tables_t *table; | |
1029 ngx_http_charset_conf_ctx_t ctx; | |
339
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1030 |
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1031 value = cf->args->elts; |
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1032 |
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1033 src = ngx_http_add_charset(&mcf->charsets, &value[1]); |
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1034 if (src == NGX_ERROR) { |
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1035 return NGX_CONF_ERROR; |
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1036 } |
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1037 |
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1038 dst = ngx_http_add_charset(&mcf->charsets, &value[2]); |
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1039 if (dst == NGX_ERROR) { |
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1040 return NGX_CONF_ERROR; |
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1041 } |
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1042 |
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1043 if (src == dst) { |
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1044 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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1045 "\"charset_map\" between the same charsets " |
461 | 1046 "\"%V\" and \"%V\"", &value[1], &value[2]); |
339
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1047 return NGX_CONF_ERROR; |
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1048 } |
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1049 |
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1050 table = mcf->tables.elts; |
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1051 for (i = 0; i < mcf->tables.nelts; i++) { |
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1052 if ((src == table->src && dst == table->dst) |
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1053 || (src == table->dst && dst == table->src)) |
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1054 { |
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1055 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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1056 "duplicate \"charset_map\" between " |
461 | 1057 "\"%V\" and \"%V\"", &value[1], &value[2]); |
339
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1058 return NGX_CONF_ERROR; |
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1059 } |
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1060 } |
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1061 |
501 | 1062 table = ngx_array_push(&mcf->tables); |
1063 if (table == NULL) { | |
339
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1064 return NGX_CONF_ERROR; |
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1065 } |
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1066 |
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1067 table->src = src; |
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1068 table->dst = dst; |
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1069 |
657 | 1070 if (ngx_strcasecmp(value[2].data, "utf-8") == 0) { |
1071 table->src2dst = ngx_pcalloc(cf->pool, 256 * NGX_UTF_LEN); | |
1072 if (table->src2dst == NULL) { | |
1073 return NGX_CONF_ERROR; | |
1074 } | |
1075 | |
1076 table->dst2src = ngx_pcalloc(cf->pool, 256 * sizeof(void *)); | |
1077 if (table->dst2src == NULL) { | |
1078 return NGX_CONF_ERROR; | |
1079 } | |
1080 | |
1081 dst2src = ngx_pcalloc(cf->pool, 256); | |
1082 if (dst2src == NULL) { | |
1083 return NGX_CONF_ERROR; | |
1084 } | |
1085 | |
1086 pp = (u_char **) &table->dst2src[0]; | |
1087 pp[0] = dst2src; | |
1088 | |
1089 for (i = 0; i < 128; i++) { | |
1090 p = &table->src2dst[i * NGX_UTF_LEN]; | |
1091 p[0] = '\1'; | |
1092 p[1] = (u_char) i; | |
1093 dst2src[i] = (u_char) i; | |
1094 } | |
339
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1095 |
657 | 1096 for (/* void */; i < 256; i++) { |
1097 p = &table->src2dst[i * NGX_UTF_LEN]; | |
1098 p[0] = '\1'; | |
1099 p[1] = '?'; | |
1100 } | |
1101 | |
1102 } else { | |
1103 table->src2dst = ngx_palloc(cf->pool, 256); | |
1104 if (table->src2dst == NULL) { | |
1105 return NGX_CONF_ERROR; | |
1106 } | |
1107 | |
1108 table->dst2src = ngx_palloc(cf->pool, 256); | |
1109 if (table->dst2src == NULL) { | |
1110 return NGX_CONF_ERROR; | |
1111 } | |
1112 | |
1113 for (i = 0; i < 128; i++) { | |
1114 table->src2dst[i] = (u_char) i; | |
1115 table->dst2src[i] = (u_char) i; | |
1116 } | |
1117 | |
1118 for (/* void */; i < 256; i++) { | |
1119 table->src2dst[i] = '?'; | |
1120 table->dst2src[i] = '?'; | |
1121 } | |
339
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1122 } |
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1123 |
657 | 1124 charset = mcf->charsets.elts; |
339
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1125 |
657 | 1126 ctx.table = table; |
1127 ctx.charset = &charset[dst]; | |
1128 ctx.characters = 0; | |
339
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1129 |
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1130 pvcf = *cf; |
657 | 1131 cf->ctx = &ctx; |
1132 cf->handler = ngx_http_charset_map; | |
338
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1133 cf->handler_conf = conf; |
501 | 1134 |
338
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1135 rv = ngx_conf_parse(cf, NULL); |
501 | 1136 |
339
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1137 *cf = pvcf; |
338
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1138 |
657 | 1139 if (ctx.characters) { |
1140 n = ctx.charset->length; | |
1141 ctx.charset->length /= ctx.characters; | |
1142 | |
1143 if (((n * 10) / ctx.characters) % 10 > 4) { | |
1144 ctx.charset->length++; | |
1145 } | |
1146 } | |
1147 | |
338
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1148 return rv; |
0376cffa29e6
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1149 } |
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|
1150 |
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|
1151 |
501 | 1152 static char * |
657 | 1153 ngx_http_charset_map(ngx_conf_t *cf, ngx_command_t *dummy, void *conf) |
338
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parents:
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|
1154 { |
657 | 1155 u_char *p, *dst2src, **pp; |
1156 uint32_t n; | |
1157 ngx_int_t src, dst; | |
1158 ngx_str_t *value; | |
1159 ngx_uint_t i; | |
1160 ngx_http_charset_tables_t *table; | |
1161 ngx_http_charset_conf_ctx_t *ctx; | |
338
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parents:
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diff
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|
1162 |
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parents:
307
diff
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|
1163 if (cf->args->nelts != 2) { |
0376cffa29e6
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parents:
307
diff
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|
1164 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameters number"); |
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parents:
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1165 return NGX_CONF_ERROR; |
0376cffa29e6
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parents:
307
diff
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|
1166 } |
0376cffa29e6
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parents:
307
diff
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|
1167 |
339
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parents:
338
diff
changeset
|
1168 value = cf->args->elts; |
338
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parents:
307
diff
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|
1169 |
339
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parents:
338
diff
changeset
|
1170 src = ngx_hextoi(value[0].data, value[0].len); |
338
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parents:
307
diff
changeset
|
1171 if (src == NGX_ERROR || src > 255) { |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1172 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
461 | 1173 "invalid value \"%V\"", &value[0]); |
339
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nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
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|
1174 return NGX_CONF_ERROR; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
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|
1175 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1176 |
657 | 1177 ctx = cf->ctx; |
1178 table = ctx->table; | |
1179 | |
1180 if (ctx->charset->utf8) { | |
1181 p = &table->src2dst[src * NGX_UTF_LEN]; | |
1182 | |
1183 *p++ = (u_char) (value[1].len / 2); | |
1184 | |
1185 for (i = 0; i < value[1].len; i += 2) { | |
1186 dst = ngx_hextoi(&value[1].data[i], 2); | |
1187 if (dst == NGX_ERROR || dst > 255) { | |
1188 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1189 "invalid value \"%V\"", &value[1]); | |
1190 return NGX_CONF_ERROR; | |
1191 } | |
1192 | |
1193 *p++ = (u_char) dst; | |
1194 } | |
1195 | |
1196 i /= 2; | |
1197 | |
1198 ctx->charset->length += i; | |
1199 ctx->characters++; | |
1200 | |
1201 p = &table->src2dst[src * NGX_UTF_LEN] + 1; | |
1202 | |
1203 n = ngx_utf_decode(&p, i); | |
1204 | |
1205 if (n > 0xffff) { | |
1206 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1207 "invalid value \"%V\"", &value[1]); | |
1208 return NGX_CONF_ERROR; | |
1209 } | |
1210 | |
1211 pp = (u_char **) &table->dst2src[0]; | |
1212 | |
1213 dst2src = pp[n >> 8]; | |
1214 | |
1215 if (dst2src == NULL) { | |
1216 dst2src = ngx_pcalloc(cf->pool, 256); | |
1217 if (dst2src == NULL) { | |
1218 return NGX_CONF_ERROR; | |
1219 } | |
1220 | |
1221 pp[n >> 8] = dst2src; | |
1222 } | |
1223 | |
1224 dst2src[n & 0xff] = (u_char) src; | |
1225 | |
1226 } else { | |
1227 dst = ngx_hextoi(value[1].data, value[1].len); | |
1228 if (dst == NGX_ERROR || dst > 255) { | |
1229 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1230 "invalid value \"%V\"", &value[1]); | |
1231 return NGX_CONF_ERROR; | |
1232 } | |
1233 | |
1234 table->src2dst[src] = (u_char) dst; | |
1235 table->dst2src[dst] = (u_char) src; | |
338
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parents:
307
diff
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|
1236 } |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
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|
1237 |
339
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parents:
338
diff
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|
1238 return NGX_CONF_OK; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1239 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1240 |
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nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1241 |
501 | 1242 static char * |
1243 ngx_http_set_charset_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
339
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parents:
338
diff
changeset
|
1244 { |
8c5b69141dfd
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parents:
338
diff
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|
1245 char *p = conf; |
8c5b69141dfd
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parents:
338
diff
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|
1246 |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1247 ngx_int_t *cp; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
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|
1248 ngx_str_t *value; |
8c5b69141dfd
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parents:
338
diff
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|
1249 ngx_http_charset_main_conf_t *mcf; |
8c5b69141dfd
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parents:
338
diff
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|
1250 |
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parents:
338
diff
changeset
|
1251 cp = (ngx_int_t *) (p + cmd->offset); |
8c5b69141dfd
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338
diff
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|
1252 |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1253 if (*cp != NGX_CONF_UNSET) { |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
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|
1254 return "is duplicate"; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1255 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1256 |
529 | 1257 value = cf->args->elts; |
1258 | |
1259 if (cmd->offset == offsetof(ngx_http_charset_loc_conf_t, charset) | |
1260 && ngx_strcmp(value[1].data, "off") == 0) | |
1261 { | |
1262 *cp = NGX_HTTP_NO_CHARSET; | |
1263 return NGX_CONF_OK; | |
1264 } | |
1265 | |
396
6f3b20c1ac50
nginx-0.0.7-2004-07-18-23:11:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
389
diff
changeset
|
1266 mcf = ngx_http_conf_get_module_main_conf(cf, |
6f3b20c1ac50
nginx-0.0.7-2004-07-18-23:11:20 import
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parents:
389
diff
changeset
|
1267 ngx_http_charset_filter_module); |
6f3b20c1ac50
nginx-0.0.7-2004-07-18-23:11:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
389
diff
changeset
|
1268 |
339
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parents:
338
diff
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|
1269 *cp = ngx_http_add_charset(&mcf->charsets, &value[1]); |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1270 if (*cp == NGX_ERROR) { |
338
0376cffa29e6
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parents:
307
diff
changeset
|
1271 return NGX_CONF_ERROR; |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1272 } |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1273 |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1274 return NGX_CONF_OK; |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1275 } |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1276 |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1277 |
501 | 1278 static ngx_int_t |
1279 ngx_http_add_charset(ngx_array_t *charsets, ngx_str_t *name) | |
339
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parents:
338
diff
changeset
|
1280 { |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1281 ngx_uint_t i; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
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changeset
|
1282 ngx_http_charset_t *c; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1283 |
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nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1284 c = charsets->elts; |
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nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1285 for (i = 0; i < charsets->nelts; i++) { |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1286 if (name->len != c[i].name.len) { |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1287 continue; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1288 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1289 |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1290 if (ngx_strcasecmp(name->data, c[i].name.data) == 0) { |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1291 break; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1292 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1293 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1294 |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1295 if (i < charsets->nelts) { |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1296 return i; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1297 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1298 |
501 | 1299 c = ngx_array_push(charsets); |
1300 if (c == NULL) { | |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1301 return NGX_ERROR; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1302 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1303 |
455 | 1304 c->tables = NULL; |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1305 c->name = *name; |
657 | 1306 c->length = 0; |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1307 |
523 | 1308 if (ngx_strcasecmp(name->data, "utf-8") == 0) { |
1309 c->utf8 = 1; | |
1310 } | |
1311 | |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1312 return i; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1313 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1314 |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1315 |
501 | 1316 static ngx_int_t |
1317 ngx_http_charset_filter_init(ngx_cycle_t *cycle) | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1318 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
139
diff
changeset
|
1319 ngx_http_next_header_filter = ngx_http_top_header_filter; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1320 ngx_http_top_header_filter = ngx_http_charset_header_filter; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1321 |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
139
diff
changeset
|
1322 ngx_http_next_body_filter = ngx_http_top_body_filter; |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1323 ngx_http_top_body_filter = ngx_http_charset_body_filter; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1324 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1325 return NGX_OK; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1326 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1327 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1328 |
501 | 1329 static void * |
1330 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
|
1331 { |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1332 ngx_http_charset_main_conf_t *mcf; |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1333 |
501 | 1334 mcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_charset_main_conf_t)); |
1335 if (mcf == NULL) { | |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1336 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
|
1337 } |
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1338 |
501 | 1339 if (ngx_array_init(&mcf->charsets, cf->pool, 2, sizeof(ngx_http_charset_t)) |
529 | 1340 == NGX_ERROR) |
501 | 1341 { |
1342 return NGX_CONF_ERROR; | |
1343 } | |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1344 |
529 | 1345 if (ngx_array_init(&mcf->tables, cf->pool, 1, |
501 | 1346 sizeof(ngx_http_charset_tables_t)) == NGX_ERROR) |
1347 { | |
1348 return NGX_CONF_ERROR; | |
1349 } | |
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1350 |
529 | 1351 if (ngx_array_init(&mcf->recodes, cf->pool, 2, |
1352 sizeof(ngx_http_charset_recode_t)) == NGX_ERROR) | |
1353 { | |
1354 return NGX_CONF_ERROR; | |
1355 } | |
1356 | |
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1357 return mcf; |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1358 } |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1359 |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1360 |
501 | 1361 static void * |
1362 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
|
1363 { |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1364 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
|
1365 |
501 | 1366 lcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_charset_loc_conf_t)); |
1367 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
|
1368 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
|
1369 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1370 |
529 | 1371 lcf->charset = NGX_CONF_UNSET; |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1372 lcf->source_charset = NGX_CONF_UNSET; |
635 | 1373 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
|
1374 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1375 return lcf; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1376 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1377 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1378 |
501 | 1379 static char * |
1380 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
|
1381 { |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1382 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
|
1383 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
|
1384 |
529 | 1385 ngx_uint_t i; |
1386 ngx_http_charset_recode_t *recode; | |
1387 ngx_http_charset_main_conf_t *mcf; | |
477 | 1388 |
635 | 1389 ngx_conf_merge_value(conf->override_charset, prev->override_charset, 0); |
529 | 1390 ngx_conf_merge_value(conf->charset, prev->charset, NGX_HTTP_NO_CHARSET); |
477 | 1391 |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1392 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
|
1393 conf->source_charset = prev->source_charset; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1394 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1395 |
529 | 1396 if (conf->charset == NGX_HTTP_NO_CHARSET |
1397 || conf->source_charset == NGX_CONF_UNSET | |
1398 || conf->charset == conf->source_charset) | |
477 | 1399 { |
529 | 1400 return NGX_CONF_OK; |
477 | 1401 } |
1402 | |
529 | 1403 mcf = ngx_http_conf_get_module_main_conf(cf, |
1404 ngx_http_charset_filter_module); | |
1405 recode = mcf->recodes.elts; | |
1406 for (i = 0; i < mcf->recodes.nelts; i++) { | |
1407 if (conf->source_charset == recode[i].src | |
1408 && conf->charset == recode[i].dst) | |
1409 { | |
1410 return NGX_CONF_OK; | |
1411 } | |
477 | 1412 } |
1413 | |
529 | 1414 recode = ngx_array_push(&mcf->recodes); |
1415 if (recode == NULL) { | |
477 | 1416 return NGX_CONF_ERROR; |
1417 } | |
340
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
339
diff
changeset
|
1418 |
529 | 1419 recode->src = conf->source_charset; |
1420 recode->dst = conf->charset; | |
1421 | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1422 return NGX_CONF_OK; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1423 } |
529 | 1424 |
1425 | |
1426 static ngx_int_t | |
1427 ngx_http_charset_postconfiguration(ngx_conf_t *cf) | |
1428 { | |
635 | 1429 u_char **src, **dst; |
529 | 1430 ngx_int_t c; |
1431 ngx_uint_t i, t; | |
1432 ngx_http_charset_t *charset; | |
1433 ngx_http_charset_recode_t *recode; | |
1434 ngx_http_charset_tables_t *tables; | |
1435 ngx_http_charset_main_conf_t *mcf; | |
1436 | |
1437 mcf = ngx_http_conf_get_module_main_conf(cf, | |
1438 ngx_http_charset_filter_module); | |
1439 | |
1440 recode = mcf->recodes.elts; | |
1441 tables = mcf->tables.elts; | |
1442 charset = mcf->charsets.elts; | |
1443 | |
1444 for (i = 0; i < mcf->recodes.nelts; i++) { | |
1445 | |
1446 c = recode[i].src; | |
1447 | |
1448 for (t = 0; t < mcf->tables.nelts; t++) { | |
1449 | |
1450 if (c == tables[t].src && recode[i].dst == tables[t].dst) { | |
1451 goto next; | |
1452 } | |
1453 | |
1454 if (c == tables[t].dst && recode[i].dst == tables[t].src) { | |
1455 goto next; | |
1456 } | |
1457 } | |
1458 | |
1459 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
1460 " no \"charset_map\" between the charsets " | |
1461 "\"%V\" and \"%V\"", | |
1462 &charset[c].name, &charset[recode[i].dst].name); | |
1463 return NGX_ERROR; | |
1464 | |
1465 next: | |
1466 continue; | |
1467 } | |
1468 | |
635 | 1469 |
1470 for (t = 0; t < mcf->tables.nelts; t++) { | |
1471 | |
1472 src = charset[tables[t].src].tables; | |
1473 | |
1474 if (src == NULL) { | |
1475 src = ngx_pcalloc(cf->pool, sizeof(u_char *) * mcf->charsets.nelts); | |
1476 if (src == NULL) { | |
1477 return NGX_ERROR; | |
1478 } | |
1479 | |
1480 charset[tables[t].src].tables = src; | |
1481 } | |
1482 | |
1483 dst = charset[tables[t].dst].tables; | |
1484 | |
1485 if (dst == NULL) { | |
1486 dst = ngx_pcalloc(cf->pool, sizeof(u_char *) * mcf->charsets.nelts); | |
1487 if (dst == NULL) { | |
1488 return NGX_ERROR; | |
1489 } | |
1490 | |
1491 charset[tables[t].dst].tables = dst; | |
1492 } | |
1493 | |
1494 src[tables[t].dst] = tables[t].src2dst; | |
1495 dst[tables[t].src] = tables[t].dst2src; | |
1496 } | |
1497 | |
529 | 1498 return NGX_OK; |
1499 } |