Mercurial > hg > nginx
annotate src/http/modules/ngx_http_charset_filter_module.c @ 659:649c9063d0fd release-0.3.51
nginx-0.3.51-RELEASE import
*) Bugfix: the "<" symbols might disappeared some conditions in the
SSI; the bug had appeared in 0.3.50.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Fri, 30 Jun 2006 12:19:32 +0000 |
parents | 400711951595 |
children | 9079ee4735ae |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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10 |
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11 |
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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48 |
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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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56 |
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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); |
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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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146 |
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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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154 |
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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 |
155
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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) | |
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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; |
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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) { | |
218 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, | |
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 | |
272 if (charset == NGX_HTTP_NO_CHARSET) { | |
273 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, | |
274 "unknown charset \"%V\" of main request", mc); | |
275 | |
276 return ngx_http_next_header_filter(r); | |
277 } | |
278 } | |
279 | |
280 charset = ctx->charset; | |
281 | |
282 if (charset == NGX_HTTP_NO_CHARSET) { | |
283 return ngx_http_next_header_filter(r); | |
653 | 284 } |
389
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285 } |
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286 |
657 | 287 /* source charset */ |
635 | 288 |
657 | 289 if (r->headers_out.charset.len == 0) { |
290 lcf = ngx_http_get_module_loc_conf(r, ngx_http_charset_filter_module); | |
635 | 291 |
657 | 292 return ngx_http_charset_set_charset(r, mcf->charsets.elts, charset, |
293 lcf->source_charset); | |
294 } | |
635 | 295 |
657 | 296 source_charset = ngx_http_charset_get_charset(charsets, n, |
297 r->headers_out.charset.data); | |
635 | 298 |
657 | 299 if (source_charset == NGX_HTTP_NO_CHARSET) { |
300 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, | |
301 "unknown source charset \"%V\"", &r->headers_out.charset); | |
635 | 302 |
657 | 303 return ngx_http_next_header_filter(r); |
304 } | |
635 | 305 |
657 | 306 if (source_charset != charset |
307 && (charsets[source_charset].tables == NULL | |
308 || charsets[source_charset].tables[charset] == NULL)) | |
309 { | |
310 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, | |
311 "no \"charset_map\" between the charsets " | |
312 "\"%V\" and \"%V\"", | |
313 &charsets[source_charset].name, &charsets[charset].name); | |
635 | 314 |
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315 return ngx_http_next_header_filter(r); |
133
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316 } |
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317 |
657 | 318 r->headers_out.content_type.len = r->headers_out.content_type_len; |
319 | |
320 return ngx_http_charset_set_charset(r, mcf->charsets.elts, charset, | |
321 source_charset); | |
322 } | |
323 | |
324 | |
325 static ngx_int_t | |
326 ngx_http_charset_get_charset(ngx_http_charset_t *charsets, ngx_uint_t n, | |
327 u_char *charset) | |
328 { | |
329 ngx_uint_t i; | |
330 | |
331 for (i = 0; i < n; i++) { | |
332 if (ngx_strcasecmp(charsets[i].name.data, charset) == 0) { | |
333 return i; | |
334 } | |
335 } | |
336 | |
337 return NGX_HTTP_NO_CHARSET; | |
338 } | |
339 | |
340 | |
341 static ngx_int_t | |
342 ngx_http_charset_set_charset(ngx_http_request_t *r, | |
343 ngx_http_charset_t *charsets, ngx_int_t charset, ngx_int_t source_charset) | |
344 { | |
345 ngx_http_charset_ctx_t *ctx; | |
346 | |
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347 if (r->headers_out.status == NGX_HTTP_MOVED_PERMANENTLY |
501 | 348 || r->headers_out.status == NGX_HTTP_MOVED_TEMPORARILY) |
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349 { |
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350 /* |
635 | 351 * do not set charset for the redirect because NN 4.x |
352 * use this charset instead of the next page charset | |
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353 */ |
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354 |
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355 r->headers_out.charset.len = 0; |
657 | 356 |
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357 return ngx_http_next_header_filter(r); |
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358 } |
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359 |
635 | 360 r->headers_out.charset = charsets[charset].name; |
361 r->utf8 = charsets[charset].utf8; | |
362 | |
363 if (source_charset == NGX_CONF_UNSET || source_charset == charset) { | |
339
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364 return ngx_http_next_header_filter(r); |
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365 } |
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366 |
501 | 367 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_charset_ctx_t)); |
368 if (ctx == NULL) { | |
369 return NGX_ERROR; | |
370 } | |
371 | |
372 ngx_http_set_ctx(r, ctx, ngx_http_charset_filter_module); | |
373 | |
635 | 374 ctx->table = charsets[source_charset].tables[charset]; |
375 ctx->charset = charset; | |
657 | 376 ctx->length = charsets[charset].length; |
377 ctx->from_utf8 = charsets[source_charset].utf8; | |
378 ctx->to_utf8 = charsets[charset].utf8; | |
379 | |
380 if ((ctx->to_utf8 || ctx->from_utf8) && r == r->main) { | |
381 ngx_http_clear_content_length(r); | |
382 } | |
339
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383 |
346
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384 r->filter_need_in_memory = 1; |
339
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385 |
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386 return ngx_http_next_header_filter(r); |
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387 } |
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388 |
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389 |
501 | 390 static ngx_int_t |
391 ngx_http_charset_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
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392 { |
657 | 393 ngx_int_t rc; |
394 ngx_buf_t *b; | |
395 ngx_chain_t *cl, *out, **ll; | |
635 | 396 ngx_http_charset_ctx_t *ctx; |
339
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397 |
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398 ctx = ngx_http_get_module_ctx(r, ngx_http_charset_filter_module); |
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399 |
635 | 400 if (ctx == NULL || ctx->table == NULL) { |
339
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401 return ngx_http_next_body_filter(r, in); |
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402 } |
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403 |
657 | 404 if ((ctx->to_utf8 || ctx->from_utf8) || ctx->busy) { |
405 | |
406 out = NULL; | |
407 ll = &out; | |
408 | |
409 for (cl = in; cl; cl = cl->next) { | |
410 b = cl->buf; | |
411 | |
412 if (ngx_buf_size(b) == 0) { | |
413 continue; | |
414 } | |
415 | |
416 if (ctx->to_utf8) { | |
417 *ll = ngx_http_charset_recode_to_utf8(r->pool, b, ctx); | |
418 | |
419 } else { | |
420 *ll = ngx_http_charset_recode_from_utf8(r->pool, b, ctx); | |
421 } | |
422 | |
423 if (*ll == NULL) { | |
424 return NGX_ERROR; | |
425 } | |
426 | |
427 while (*ll) { | |
428 ll = &(*ll)->next; | |
429 } | |
430 } | |
431 | |
432 rc = ngx_http_next_body_filter(r, out); | |
433 | |
434 if (out) { | |
435 if (ctx->busy == NULL) { | |
436 ctx->busy = out; | |
437 | |
438 } else { | |
439 for (cl = ctx->busy; cl->next; cl = cl->next) { /* void */ } | |
440 cl->next = out; | |
441 } | |
442 } | |
443 | |
444 while (ctx->busy) { | |
445 | |
446 cl = ctx->busy; | |
447 b = cl->buf; | |
448 | |
449 if (ngx_buf_size(b) != 0) { | |
450 break; | |
451 } | |
452 | |
453 #if (NGX_HAVE_WRITE_ZEROCOPY) | |
454 if (b->zerocopy_busy) { | |
455 break; | |
456 } | |
457 #endif | |
458 | |
459 ctx->busy = cl->next; | |
460 | |
461 if (b->tag != (ngx_buf_tag_t) &ngx_http_charset_filter_module) { | |
462 continue; | |
463 } | |
464 | |
465 if (b->shadow) { | |
466 b->shadow->pos = b->shadow->last; | |
467 } | |
468 | |
469 if (b->pos) { | |
470 cl->next = ctx->free_buffers; | |
471 ctx->free_buffers = cl; | |
472 continue; | |
473 } | |
474 | |
475 cl->next = ctx->free_bufs; | |
476 ctx->free_bufs = cl; | |
477 } | |
478 | |
479 return rc; | |
480 } | |
481 | |
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482 for (cl = in; cl; cl = cl->next) { |
635 | 483 (void) ngx_http_charset_recode(cl->buf, ctx->table); |
339
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484 } |
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485 |
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486 return ngx_http_next_body_filter(r, in); |
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487 } |
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488 |
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489 |
501 | 490 static ngx_uint_t |
635 | 491 ngx_http_charset_recode(ngx_buf_t *b, u_char *table) |
339
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492 { |
635 | 493 u_char *p; |
339
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494 |
343
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495 for (p = b->pos; p < b->last; p++) { |
635 | 496 |
497 if (*p == table[*p]) { | |
498 continue; | |
455 | 499 } |
500 | |
501 while (p < b->last) { | |
502 *p = table[*p]; | |
503 p++; | |
504 } | |
505 | |
506 b->in_file = 0; | |
635 | 507 |
508 return 1; | |
455 | 509 } |
510 | |
635 | 511 return 0; |
339
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512 } |
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513 |
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514 |
657 | 515 static ngx_chain_t * |
516 ngx_http_charset_recode_from_utf8(ngx_pool_t *pool, ngx_buf_t *buf, | |
517 ngx_http_charset_ctx_t *ctx) | |
518 { | |
519 size_t len, size; | |
520 u_char c, *p, *src, *dst, *saved, **table; | |
521 uint32_t n; | |
522 ngx_buf_t *b; | |
523 ngx_uint_t i; | |
524 ngx_chain_t *out, *cl, **ll; | |
525 | |
526 src = buf->pos; | |
527 | |
528 if (ctx->saved_len == 0) { | |
529 | |
530 for ( /* void */ ; src < buf->last; src++) { | |
531 | |
532 if (*src < 0x80) { | |
533 continue; | |
534 } | |
535 | |
536 len = src - buf->pos; | |
537 | |
538 if (len > 512) { | |
539 out = ngx_http_charset_get_buf(pool, ctx); | |
540 if (out == NULL) { | |
541 return NULL; | |
542 } | |
543 | |
544 b = out->buf; | |
545 | |
546 b->temporary = buf->temporary; | |
547 b->memory = buf->memory; | |
548 b->mmap = buf->mmap; | |
549 b->flush = buf->flush; | |
550 | |
551 b->pos = buf->pos; | |
552 b->last = src; | |
553 | |
554 out->buf = b; | |
555 out->next = NULL; | |
556 | |
557 size = buf->last - src; | |
558 | |
559 saved = src; | |
560 n = ngx_utf_decode(&saved, size); | |
561 | |
562 if (n == 0xfffffffe) { | |
563 /* incomplete UTF-8 symbol */ | |
564 | |
565 ngx_memcpy(ctx->saved, src, size); | |
566 ctx->saved_len = size; | |
567 | |
568 b->shadow = buf; | |
569 | |
570 return out; | |
571 } | |
572 | |
573 } else { | |
574 out = NULL; | |
575 size = len + buf->last - src; | |
576 src = buf->pos; | |
577 } | |
578 | |
579 if (size < NGX_HTML_ENTITY_LEN) { | |
580 size += NGX_HTML_ENTITY_LEN; | |
581 } | |
582 | |
583 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
584 if (cl == NULL) { | |
585 return NULL; | |
586 } | |
587 | |
588 if (out) { | |
589 out->next = cl; | |
590 | |
591 } else { | |
592 out = cl; | |
593 } | |
594 | |
595 b = cl->buf; | |
596 dst = b->pos; | |
597 | |
598 goto recode; | |
599 } | |
600 | |
601 out = ngx_alloc_chain_link(pool); | |
602 if (out == NULL) { | |
603 return NULL; | |
604 } | |
605 | |
606 out->buf = buf; | |
607 out->next = NULL; | |
608 | |
609 return out; | |
610 } | |
611 | |
612 /* process incomplete UTF sequence from previous buffer */ | |
613 | |
614 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
615 "http charset utf saved: %z", ctx->saved_len); | |
616 | |
617 p = src; | |
618 | |
619 for (i = ctx->saved_len; i < NGX_UTF_LEN; i++) { | |
620 ctx->saved[i] = *p++; | |
621 | |
622 if (p == buf->last) { | |
623 break; | |
624 } | |
625 } | |
626 | |
627 saved = ctx->saved; | |
628 n = ngx_utf_decode(&saved, i); | |
629 | |
630 c = '\0'; | |
631 | |
632 if (n < 0x10000) { | |
633 table = (u_char **) ctx->table; | |
634 p = table[n >> 8]; | |
635 | |
636 if (p) { | |
637 c = p[n & 0xff]; | |
638 } | |
639 | |
640 } else if (n == 0xfffffffe) { | |
641 | |
642 /* incomplete UTF-8 symbol */ | |
643 | |
644 if (i < NGX_UTF_LEN) { | |
645 out = ngx_http_charset_get_buf(pool, ctx); | |
646 if (out == NULL) { | |
647 return NULL; | |
648 } | |
649 | |
650 b = out->buf; | |
651 | |
652 b->pos = buf->pos; | |
653 b->last = buf->last; | |
654 b->sync = 1; | |
655 b->shadow = buf; | |
656 | |
657 ngx_memcpy(&ctx->saved[ctx->saved_len], src, i); | |
658 ctx->saved_len += i; | |
659 | |
660 return out; | |
661 } | |
662 } | |
663 | |
664 size = buf->last - buf->pos; | |
665 | |
666 if (size < NGX_HTML_ENTITY_LEN) { | |
667 size += NGX_HTML_ENTITY_LEN; | |
668 } | |
669 | |
670 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
671 if (cl == NULL) { | |
672 return NULL; | |
673 } | |
674 | |
675 out = cl; | |
676 | |
677 b = cl->buf; | |
678 dst = b->pos; | |
679 | |
680 if (c) { | |
681 *dst++ = c; | |
682 | |
683 } else if (n == 0xfffffffe) { | |
684 *dst++ = '?'; | |
685 | |
686 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
687 "http charset invalid utf 0"); | |
688 | |
689 saved = &ctx->saved[NGX_UTF_LEN]; | |
690 | |
691 } else if (n > 0x10ffff) { | |
692 *dst++ = '?'; | |
693 | |
694 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
695 "http charset invalid utf 1"); | |
696 | |
697 } else { | |
698 dst = ngx_sprintf(dst, "&#%uD;", n); | |
699 } | |
700 | |
701 src += (saved - ctx->saved) - ctx->saved_len; | |
702 ctx->saved_len = 0; | |
703 | |
704 recode: | |
705 | |
706 ll = &cl->next; | |
707 | |
708 table = (u_char **) ctx->table; | |
709 | |
710 while (src < buf->last) { | |
711 | |
712 if ((size_t) (b->end - dst) < NGX_HTML_ENTITY_LEN) { | |
713 b->last = dst; | |
714 | |
715 size = buf->last - src + NGX_HTML_ENTITY_LEN; | |
716 | |
717 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
718 if (cl == NULL) { | |
719 return NULL; | |
720 } | |
721 | |
722 *ll = cl; | |
723 ll = &cl->next; | |
724 | |
725 b = cl->buf; | |
726 dst = b->pos; | |
727 } | |
728 | |
729 if (*src < 0x80) { | |
730 *dst++ = *src++; | |
731 continue; | |
732 } | |
733 | |
734 len = buf->last - src; | |
735 | |
736 n = ngx_utf_decode(&src, len); | |
737 | |
738 if (n < 0x10000) { | |
739 | |
740 p = table[n >> 8]; | |
741 | |
742 if (p) { | |
743 c = p[n & 0xff]; | |
744 | |
745 if (c) { | |
746 *dst++ = c; | |
747 continue; | |
748 } | |
749 } | |
750 | |
751 dst = ngx_sprintf(dst, "&#%uD;", n); | |
752 | |
753 continue; | |
754 } | |
755 | |
756 if (n == 0xfffffffe) { | |
757 /* incomplete UTF-8 symbol */ | |
758 | |
759 ngx_memcpy(ctx->saved, src, len); | |
760 ctx->saved_len = len; | |
761 | |
762 if (b->pos == dst) { | |
763 b->sync = 1; | |
764 b->temporary = 0; | |
765 } | |
766 | |
767 break; | |
768 } | |
769 | |
770 if (n > 0x10ffff) { | |
771 *dst++ = '?'; | |
772 | |
773 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
774 "http charset invalid utf 2"); | |
775 | |
776 continue; | |
777 } | |
778 | |
779 /* n > 0xffff */ | |
780 | |
781 dst = ngx_sprintf(dst, "&#%uD;", n); | |
782 } | |
783 | |
784 b->last = dst; | |
785 | |
786 b->last_buf = buf->last_buf; | |
787 b->last_in_chain = buf->last_in_chain; | |
788 b->flush = buf->flush; | |
789 | |
790 b->shadow = buf; | |
791 | |
792 return out; | |
793 } | |
794 | |
795 | |
796 static ngx_chain_t * | |
797 ngx_http_charset_recode_to_utf8(ngx_pool_t *pool, ngx_buf_t *buf, | |
798 ngx_http_charset_ctx_t *ctx) | |
799 { | |
800 size_t len, size; | |
801 u_char *p, *src, *dst, *table; | |
802 ngx_buf_t *b; | |
803 ngx_chain_t *out, *cl, **ll; | |
804 | |
805 table = ctx->table; | |
806 | |
807 for (src = buf->pos; src < buf->last; src++) { | |
808 if (table[*src * NGX_UTF_LEN] == '\1') { | |
809 continue; | |
810 } | |
811 | |
812 goto recode; | |
813 } | |
814 | |
815 out = ngx_alloc_chain_link(pool); | |
816 if (out == NULL) { | |
817 return NULL; | |
818 } | |
819 | |
820 out->buf = buf; | |
821 out->next = NULL; | |
822 | |
823 return out; | |
824 | |
825 recode: | |
826 | |
827 /* | |
828 * we assume that there are about half of characters to be recoded, | |
829 * so we preallocate "size / 2 + size / 2 * ctx->length" | |
830 */ | |
831 | |
832 len = src - buf->pos; | |
833 | |
834 if (len > 512) { | |
835 out = ngx_http_charset_get_buf(pool, ctx); | |
836 if (out == NULL) { | |
837 return NULL; | |
838 } | |
839 | |
840 b = out->buf; | |
841 | |
842 b->temporary = buf->temporary; | |
843 b->memory = buf->memory; | |
844 b->mmap = buf->mmap; | |
845 b->flush = buf->flush; | |
846 | |
847 b->pos = buf->pos; | |
848 b->last = src; | |
849 | |
850 out->buf = b; | |
851 out->next = NULL; | |
852 | |
853 size = buf->last - src; | |
854 size = size / 2 + size / 2 * ctx->length; | |
855 | |
856 } else { | |
857 out = NULL; | |
858 | |
859 size = buf->last - src; | |
860 size = len + size / 2 + size / 2 * ctx->length; | |
861 | |
862 src = buf->pos; | |
863 } | |
864 | |
865 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
866 if (cl == NULL) { | |
867 return NULL; | |
868 } | |
869 | |
870 if (out) { | |
871 out->next = cl; | |
872 | |
873 } else { | |
874 out = cl; | |
875 } | |
876 | |
877 ll = &cl->next; | |
878 | |
879 b = cl->buf; | |
880 dst = b->pos; | |
881 | |
882 while (src < buf->last) { | |
883 | |
884 p = &table[*src++ * NGX_UTF_LEN]; | |
885 len = *p++; | |
886 | |
887 if ((size_t) (b->end - dst) < len) { | |
888 b->last = dst; | |
889 | |
890 size = buf->last - src; | |
891 size = len + size / 2 + size / 2 * ctx->length; | |
892 | |
893 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
894 if (cl == NULL) { | |
895 return NULL; | |
896 } | |
897 | |
898 *ll = cl; | |
899 ll = &cl->next; | |
900 | |
901 b = cl->buf; | |
902 dst = b->pos; | |
903 } | |
904 | |
905 while (len) { | |
906 *dst++ = *p++; | |
907 len--; | |
908 } | |
909 } | |
910 | |
911 b->last = dst; | |
912 | |
913 b->last_buf = buf->last_buf; | |
914 b->last_in_chain = buf->last_in_chain; | |
915 b->flush = buf->flush; | |
916 | |
917 b->shadow = buf; | |
918 | |
919 return out; | |
920 } | |
921 | |
922 | |
923 static ngx_chain_t * | |
924 ngx_http_charset_get_buf(ngx_pool_t *pool, ngx_http_charset_ctx_t *ctx) | |
925 { | |
926 ngx_chain_t *cl; | |
927 | |
928 cl = ctx->free_bufs; | |
929 | |
930 if (cl) { | |
931 ctx->free_bufs = cl->next; | |
932 | |
933 cl->buf->shadow = NULL; | |
934 cl->next = NULL; | |
935 | |
936 return cl; | |
937 } | |
938 | |
939 cl = ngx_alloc_chain_link(pool); | |
940 if (cl == NULL) { | |
941 return NULL; | |
942 } | |
943 | |
944 cl->buf = ngx_calloc_buf(pool); | |
945 if (cl->buf == NULL) { | |
946 return NULL; | |
947 } | |
948 | |
949 cl->next = NULL; | |
950 | |
951 cl->buf->tag = (ngx_buf_tag_t) &ngx_http_charset_filter_module; | |
952 | |
953 return cl; | |
954 } | |
955 | |
956 | |
957 static ngx_chain_t * | |
958 ngx_http_charset_get_buffer(ngx_pool_t *pool, ngx_http_charset_ctx_t *ctx, | |
959 size_t size) | |
960 { | |
961 ngx_buf_t *b; | |
962 ngx_chain_t *cl, **ll; | |
963 | |
964 for (ll = &ctx->free_buffers, cl = ctx->free_buffers; | |
965 cl; | |
966 ll = &cl->next, cl = cl->next) | |
967 { | |
968 b = cl->buf; | |
969 | |
970 if ((size_t) (b->end - b->start) >= size) { | |
971 *ll = cl->next; | |
972 cl->next = NULL; | |
973 | |
974 b->pos = b->start; | |
975 b->temporary = 1; | |
976 b->shadow = NULL; | |
977 | |
978 return cl; | |
979 } | |
980 } | |
981 | |
982 cl = ngx_alloc_chain_link(pool); | |
983 if (cl == NULL) { | |
984 return NULL; | |
985 } | |
986 | |
987 cl->buf = ngx_create_temp_buf(pool, size); | |
988 if (cl->buf == NULL) { | |
989 return NULL; | |
990 } | |
991 | |
992 cl->next = NULL; | |
993 | |
994 cl->buf->temporary = 1; | |
995 cl->buf->tag = (ngx_buf_tag_t) &ngx_http_charset_filter_module; | |
996 | |
997 return cl; | |
998 } | |
999 | |
1000 | |
501 | 1001 static char * |
657 | 1002 ngx_http_charset_map_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
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1003 { |
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1004 ngx_http_charset_main_conf_t *mcf = conf; |
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1005 |
657 | 1006 char *rv; |
1007 u_char *p, *dst2src, **pp; | |
1008 ngx_int_t src, dst; | |
1009 ngx_uint_t i, n; | |
1010 ngx_str_t *value; | |
1011 ngx_conf_t pvcf; | |
1012 ngx_http_charset_t *charset; | |
1013 ngx_http_charset_tables_t *table; | |
1014 ngx_http_charset_conf_ctx_t ctx; | |
339
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1015 |
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1016 value = cf->args->elts; |
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1017 |
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1018 src = ngx_http_add_charset(&mcf->charsets, &value[1]); |
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1019 if (src == NGX_ERROR) { |
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1020 return NGX_CONF_ERROR; |
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1021 } |
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1022 |
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1023 dst = ngx_http_add_charset(&mcf->charsets, &value[2]); |
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1024 if (dst == NGX_ERROR) { |
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1025 return NGX_CONF_ERROR; |
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1026 } |
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1027 |
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1028 if (src == dst) { |
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1029 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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1030 "\"charset_map\" between the same charsets " |
461 | 1031 "\"%V\" and \"%V\"", &value[1], &value[2]); |
339
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1032 return NGX_CONF_ERROR; |
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1033 } |
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1034 |
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1035 table = mcf->tables.elts; |
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1036 for (i = 0; i < mcf->tables.nelts; i++) { |
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1037 if ((src == table->src && dst == table->dst) |
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1038 || (src == table->dst && dst == table->src)) |
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1039 { |
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1040 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
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1041 "duplicate \"charset_map\" between " |
461 | 1042 "\"%V\" and \"%V\"", &value[1], &value[2]); |
339
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1043 return NGX_CONF_ERROR; |
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1044 } |
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1045 } |
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1046 |
501 | 1047 table = ngx_array_push(&mcf->tables); |
1048 if (table == NULL) { | |
339
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1049 return NGX_CONF_ERROR; |
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1050 } |
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1051 |
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1052 table->src = src; |
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1053 table->dst = dst; |
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1054 |
657 | 1055 if (ngx_strcasecmp(value[2].data, "utf-8") == 0) { |
1056 table->src2dst = ngx_pcalloc(cf->pool, 256 * NGX_UTF_LEN); | |
1057 if (table->src2dst == NULL) { | |
1058 return NGX_CONF_ERROR; | |
1059 } | |
1060 | |
1061 table->dst2src = ngx_pcalloc(cf->pool, 256 * sizeof(void *)); | |
1062 if (table->dst2src == NULL) { | |
1063 return NGX_CONF_ERROR; | |
1064 } | |
1065 | |
1066 dst2src = ngx_pcalloc(cf->pool, 256); | |
1067 if (dst2src == NULL) { | |
1068 return NGX_CONF_ERROR; | |
1069 } | |
1070 | |
1071 pp = (u_char **) &table->dst2src[0]; | |
1072 pp[0] = dst2src; | |
1073 | |
1074 for (i = 0; i < 128; i++) { | |
1075 p = &table->src2dst[i * NGX_UTF_LEN]; | |
1076 p[0] = '\1'; | |
1077 p[1] = (u_char) i; | |
1078 dst2src[i] = (u_char) i; | |
1079 } | |
339
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1080 |
657 | 1081 for (/* void */; i < 256; i++) { |
1082 p = &table->src2dst[i * NGX_UTF_LEN]; | |
1083 p[0] = '\1'; | |
1084 p[1] = '?'; | |
1085 } | |
1086 | |
1087 } else { | |
1088 table->src2dst = ngx_palloc(cf->pool, 256); | |
1089 if (table->src2dst == NULL) { | |
1090 return NGX_CONF_ERROR; | |
1091 } | |
1092 | |
1093 table->dst2src = ngx_palloc(cf->pool, 256); | |
1094 if (table->dst2src == NULL) { | |
1095 return NGX_CONF_ERROR; | |
1096 } | |
1097 | |
1098 for (i = 0; i < 128; i++) { | |
1099 table->src2dst[i] = (u_char) i; | |
1100 table->dst2src[i] = (u_char) i; | |
1101 } | |
1102 | |
1103 for (/* void */; i < 256; i++) { | |
1104 table->src2dst[i] = '?'; | |
1105 table->dst2src[i] = '?'; | |
1106 } | |
339
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1107 } |
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1108 |
657 | 1109 charset = mcf->charsets.elts; |
339
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1110 |
657 | 1111 ctx.table = table; |
1112 ctx.charset = &charset[dst]; | |
1113 ctx.characters = 0; | |
339
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1114 |
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1115 pvcf = *cf; |
657 | 1116 cf->ctx = &ctx; |
1117 cf->handler = ngx_http_charset_map; | |
338
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1118 cf->handler_conf = conf; |
501 | 1119 |
338
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1120 rv = ngx_conf_parse(cf, NULL); |
501 | 1121 |
339
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1122 *cf = pvcf; |
338
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1123 |
657 | 1124 if (ctx.characters) { |
1125 n = ctx.charset->length; | |
1126 ctx.charset->length /= ctx.characters; | |
1127 | |
1128 if (((n * 10) / ctx.characters) % 10 > 4) { | |
1129 ctx.charset->length++; | |
1130 } | |
1131 } | |
1132 | |
338
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1133 return rv; |
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1134 } |
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1135 |
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1136 |
501 | 1137 static char * |
657 | 1138 ngx_http_charset_map(ngx_conf_t *cf, ngx_command_t *dummy, void *conf) |
338
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|
1139 { |
657 | 1140 u_char *p, *dst2src, **pp; |
1141 uint32_t n; | |
1142 ngx_int_t src, dst; | |
1143 ngx_str_t *value; | |
1144 ngx_uint_t i; | |
1145 ngx_http_charset_tables_t *table; | |
1146 ngx_http_charset_conf_ctx_t *ctx; | |
338
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1147 |
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|
1148 if (cf->args->nelts != 2) { |
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|
1149 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameters number"); |
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|
1150 return NGX_CONF_ERROR; |
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parents:
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diff
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|
1151 } |
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|
1152 |
339
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parents:
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diff
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|
1153 value = cf->args->elts; |
338
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parents:
307
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|
1154 |
339
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parents:
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diff
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|
1155 src = ngx_hextoi(value[0].data, value[0].len); |
338
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parents:
307
diff
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|
1156 if (src == NGX_ERROR || src > 255) { |
0376cffa29e6
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parents:
307
diff
changeset
|
1157 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
461 | 1158 "invalid value \"%V\"", &value[0]); |
339
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parents:
338
diff
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|
1159 return NGX_CONF_ERROR; |
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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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|
1160 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
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|
1161 |
657 | 1162 ctx = cf->ctx; |
1163 table = ctx->table; | |
1164 | |
1165 if (ctx->charset->utf8) { | |
1166 p = &table->src2dst[src * NGX_UTF_LEN]; | |
1167 | |
1168 *p++ = (u_char) (value[1].len / 2); | |
1169 | |
1170 for (i = 0; i < value[1].len; i += 2) { | |
1171 dst = ngx_hextoi(&value[1].data[i], 2); | |
1172 if (dst == NGX_ERROR || dst > 255) { | |
1173 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1174 "invalid value \"%V\"", &value[1]); | |
1175 return NGX_CONF_ERROR; | |
1176 } | |
1177 | |
1178 *p++ = (u_char) dst; | |
1179 } | |
1180 | |
1181 i /= 2; | |
1182 | |
1183 ctx->charset->length += i; | |
1184 ctx->characters++; | |
1185 | |
1186 p = &table->src2dst[src * NGX_UTF_LEN] + 1; | |
1187 | |
1188 n = ngx_utf_decode(&p, i); | |
1189 | |
1190 if (n > 0xffff) { | |
1191 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1192 "invalid value \"%V\"", &value[1]); | |
1193 return NGX_CONF_ERROR; | |
1194 } | |
1195 | |
1196 pp = (u_char **) &table->dst2src[0]; | |
1197 | |
1198 dst2src = pp[n >> 8]; | |
1199 | |
1200 if (dst2src == NULL) { | |
1201 dst2src = ngx_pcalloc(cf->pool, 256); | |
1202 if (dst2src == NULL) { | |
1203 return NGX_CONF_ERROR; | |
1204 } | |
1205 | |
1206 pp[n >> 8] = dst2src; | |
1207 } | |
1208 | |
1209 dst2src[n & 0xff] = (u_char) src; | |
1210 | |
1211 } else { | |
1212 dst = ngx_hextoi(value[1].data, value[1].len); | |
1213 if (dst == NGX_ERROR || dst > 255) { | |
1214 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
1215 "invalid value \"%V\"", &value[1]); | |
1216 return NGX_CONF_ERROR; | |
1217 } | |
1218 | |
1219 table->src2dst[src] = (u_char) dst; | |
1220 table->dst2src[dst] = (u_char) src; | |
338
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parents:
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diff
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|
1221 } |
0376cffa29e6
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parents:
307
diff
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|
1222 |
339
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parents:
338
diff
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|
1223 return NGX_CONF_OK; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1224 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1225 |
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parents:
338
diff
changeset
|
1226 |
501 | 1227 static char * |
1228 ngx_http_set_charset_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
339
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parents:
338
diff
changeset
|
1229 { |
8c5b69141dfd
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parents:
338
diff
changeset
|
1230 char *p = conf; |
8c5b69141dfd
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parents:
338
diff
changeset
|
1231 |
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parents:
338
diff
changeset
|
1232 ngx_int_t *cp; |
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parents:
338
diff
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|
1233 ngx_str_t *value; |
8c5b69141dfd
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parents:
338
diff
changeset
|
1234 ngx_http_charset_main_conf_t *mcf; |
8c5b69141dfd
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parents:
338
diff
changeset
|
1235 |
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parents:
338
diff
changeset
|
1236 cp = (ngx_int_t *) (p + cmd->offset); |
8c5b69141dfd
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parents:
338
diff
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|
1237 |
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parents:
338
diff
changeset
|
1238 if (*cp != NGX_CONF_UNSET) { |
8c5b69141dfd
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parents:
338
diff
changeset
|
1239 return "is duplicate"; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
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|
1240 } |
8c5b69141dfd
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parents:
338
diff
changeset
|
1241 |
529 | 1242 value = cf->args->elts; |
1243 | |
1244 if (cmd->offset == offsetof(ngx_http_charset_loc_conf_t, charset) | |
1245 && ngx_strcmp(value[1].data, "off") == 0) | |
1246 { | |
1247 *cp = NGX_HTTP_NO_CHARSET; | |
1248 return NGX_CONF_OK; | |
1249 } | |
1250 | |
396
6f3b20c1ac50
nginx-0.0.7-2004-07-18-23:11:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
389
diff
changeset
|
1251 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
|
1252 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
|
1253 |
339
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parents:
338
diff
changeset
|
1254 *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
|
1255 if (*cp == NGX_ERROR) { |
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1256 return NGX_CONF_ERROR; |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1257 } |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1258 |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1259 return NGX_CONF_OK; |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1260 } |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1261 |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1262 |
501 | 1263 static ngx_int_t |
1264 ngx_http_add_charset(ngx_array_t *charsets, ngx_str_t *name) | |
339
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nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1265 { |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1266 ngx_uint_t i; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1267 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
|
1268 |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1269 c = charsets->elts; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1270 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
|
1271 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
|
1272 continue; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1273 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1274 |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1275 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
|
1276 break; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1277 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1278 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1279 |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1280 if (i < charsets->nelts) { |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1281 return i; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1282 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1283 |
501 | 1284 c = ngx_array_push(charsets); |
1285 if (c == NULL) { | |
339
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parents:
338
diff
changeset
|
1286 return NGX_ERROR; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1287 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1288 |
455 | 1289 c->tables = NULL; |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
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|
1290 c->name = *name; |
657 | 1291 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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|
1292 |
523 | 1293 if (ngx_strcasecmp(name->data, "utf-8") == 0) { |
1294 c->utf8 = 1; | |
1295 } | |
1296 | |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1297 return i; |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1298 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1299 |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1300 |
501 | 1301 static ngx_int_t |
1302 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
|
1303 { |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
139
diff
changeset
|
1304 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
|
1305 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
|
1306 |
155
46eb23d9471d
nginx-0.0.1-2003-10-22-20:38:26 import
Igor Sysoev <igor@sysoev.ru>
parents:
139
diff
changeset
|
1307 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
|
1308 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
|
1309 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1310 return NGX_OK; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1311 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1312 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1313 |
501 | 1314 static void * |
1315 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
|
1316 { |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1317 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
|
1318 |
501 | 1319 mcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_charset_main_conf_t)); |
1320 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
|
1321 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
|
1322 } |
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1323 |
501 | 1324 if (ngx_array_init(&mcf->charsets, cf->pool, 2, sizeof(ngx_http_charset_t)) |
529 | 1325 == NGX_ERROR) |
501 | 1326 { |
1327 return NGX_CONF_ERROR; | |
1328 } | |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1329 |
529 | 1330 if (ngx_array_init(&mcf->tables, cf->pool, 1, |
501 | 1331 sizeof(ngx_http_charset_tables_t)) == NGX_ERROR) |
1332 { | |
1333 return NGX_CONF_ERROR; | |
1334 } | |
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1335 |
529 | 1336 if (ngx_array_init(&mcf->recodes, cf->pool, 2, |
1337 sizeof(ngx_http_charset_recode_t)) == NGX_ERROR) | |
1338 { | |
1339 return NGX_CONF_ERROR; | |
1340 } | |
1341 | |
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1342 return mcf; |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1343 } |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1344 |
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1345 |
501 | 1346 static void * |
1347 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
|
1348 { |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1349 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
|
1350 |
501 | 1351 lcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_charset_loc_conf_t)); |
1352 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
|
1353 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
|
1354 } |
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1355 |
529 | 1356 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
|
1357 lcf->source_charset = NGX_CONF_UNSET; |
635 | 1358 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
|
1359 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1360 return lcf; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1361 } |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1362 |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1363 |
501 | 1364 static char * |
1365 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
|
1366 { |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1367 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
|
1368 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
|
1369 |
529 | 1370 ngx_uint_t i; |
1371 ngx_http_charset_recode_t *recode; | |
1372 ngx_http_charset_main_conf_t *mcf; | |
477 | 1373 |
635 | 1374 ngx_conf_merge_value(conf->override_charset, prev->override_charset, 0); |
529 | 1375 ngx_conf_merge_value(conf->charset, prev->charset, NGX_HTTP_NO_CHARSET); |
477 | 1376 |
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1377 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
|
1378 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
|
1379 } |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1380 |
529 | 1381 if (conf->charset == NGX_HTTP_NO_CHARSET |
1382 || conf->source_charset == NGX_CONF_UNSET | |
1383 || conf->charset == conf->source_charset) | |
477 | 1384 { |
529 | 1385 return NGX_CONF_OK; |
477 | 1386 } |
1387 | |
529 | 1388 mcf = ngx_http_conf_get_module_main_conf(cf, |
1389 ngx_http_charset_filter_module); | |
1390 recode = mcf->recodes.elts; | |
1391 for (i = 0; i < mcf->recodes.nelts; i++) { | |
1392 if (conf->source_charset == recode[i].src | |
1393 && conf->charset == recode[i].dst) | |
1394 { | |
1395 return NGX_CONF_OK; | |
1396 } | |
477 | 1397 } |
1398 | |
529 | 1399 recode = ngx_array_push(&mcf->recodes); |
1400 if (recode == NULL) { | |
477 | 1401 return NGX_CONF_ERROR; |
1402 } | |
340
0bf903191ceb
nginx-0.0.3-2004-05-25-19:28:46 import
Igor Sysoev <igor@sysoev.ru>
parents:
339
diff
changeset
|
1403 |
529 | 1404 recode->src = conf->source_charset; |
1405 recode->dst = conf->charset; | |
1406 | |
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1407 return NGX_CONF_OK; |
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
1408 } |
529 | 1409 |
1410 | |
1411 static ngx_int_t | |
1412 ngx_http_charset_postconfiguration(ngx_conf_t *cf) | |
1413 { | |
635 | 1414 u_char **src, **dst; |
529 | 1415 ngx_int_t c; |
1416 ngx_uint_t i, t; | |
1417 ngx_http_charset_t *charset; | |
1418 ngx_http_charset_recode_t *recode; | |
1419 ngx_http_charset_tables_t *tables; | |
1420 ngx_http_charset_main_conf_t *mcf; | |
1421 | |
1422 mcf = ngx_http_conf_get_module_main_conf(cf, | |
1423 ngx_http_charset_filter_module); | |
1424 | |
1425 recode = mcf->recodes.elts; | |
1426 tables = mcf->tables.elts; | |
1427 charset = mcf->charsets.elts; | |
1428 | |
1429 for (i = 0; i < mcf->recodes.nelts; i++) { | |
1430 | |
1431 c = recode[i].src; | |
1432 | |
1433 for (t = 0; t < mcf->tables.nelts; t++) { | |
1434 | |
1435 if (c == tables[t].src && recode[i].dst == tables[t].dst) { | |
1436 goto next; | |
1437 } | |
1438 | |
1439 if (c == tables[t].dst && recode[i].dst == tables[t].src) { | |
1440 goto next; | |
1441 } | |
1442 } | |
1443 | |
1444 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
1445 " no \"charset_map\" between the charsets " | |
1446 "\"%V\" and \"%V\"", | |
1447 &charset[c].name, &charset[recode[i].dst].name); | |
1448 return NGX_ERROR; | |
1449 | |
1450 next: | |
1451 continue; | |
1452 } | |
1453 | |
635 | 1454 |
1455 for (t = 0; t < mcf->tables.nelts; t++) { | |
1456 | |
1457 src = charset[tables[t].src].tables; | |
1458 | |
1459 if (src == NULL) { | |
1460 src = ngx_pcalloc(cf->pool, sizeof(u_char *) * mcf->charsets.nelts); | |
1461 if (src == NULL) { | |
1462 return NGX_ERROR; | |
1463 } | |
1464 | |
1465 charset[tables[t].src].tables = src; | |
1466 } | |
1467 | |
1468 dst = charset[tables[t].dst].tables; | |
1469 | |
1470 if (dst == NULL) { | |
1471 dst = ngx_pcalloc(cf->pool, sizeof(u_char *) * mcf->charsets.nelts); | |
1472 if (dst == NULL) { | |
1473 return NGX_ERROR; | |
1474 } | |
1475 | |
1476 charset[tables[t].dst].tables = dst; | |
1477 } | |
1478 | |
1479 src[tables[t].dst] = tables[t].src2dst; | |
1480 dst[tables[t].src] = tables[t].dst2src; | |
1481 } | |
1482 | |
529 | 1483 return NGX_OK; |
1484 } |