Mercurial > hg > nginx
annotate src/http/modules/ngx_http_charset_filter_module.c @ 9299:2706b60dc225 default tip
Core: error logging rate limiting.
With this change, error logging to files can be rate-limited with
the "rate=" parameter. The parameter specifies allowed log messages
rate to a particular file (per worker), in messages per second (m/s).
By default, "rate=1000m/s" is used.
Rate limiting is implemented using the "leaky bucket" method, similarly
to the limit_req module.
Maximum burst size is set to the number of log messages per second
for each severity level, so "error" messages are logged even if the
rate limit is hit by "info" messages (but not vice versa). When the
limit is reached for a particular level, the "too many log messages,
limiting" message is logged at this level.
If debug logging is enabled, either for the particular log file or for
the particular connection, rate limiting is not used.
| author | Maxim Dounin <mdounin@mdounin.ru> |
|---|---|
| date | Tue, 25 Jun 2024 22:58:56 +0300 |
| parents | f53146df9a47 |
| children |
| rev | line source |
|---|---|
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
| 4412 | 4 * Copyright (C) Nginx, Inc. |
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5 */ |
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8 #include <ngx_config.h> |
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9 #include <ngx_core.h> |
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10 #include <ngx_http.h> |
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13 #define NGX_HTTP_CHARSET_OFF -2 |
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14 #define NGX_HTTP_NO_CHARSET -3 |
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15 #define NGX_HTTP_CHARSET_VAR 0x10000 |
| 657 | 16 |
| 17 /* 1 byte length and up to 3 bytes for the UTF-8 encoding of the UCS-2 */ | |
| 18 #define NGX_UTF_LEN 4 | |
| 19 | |
| 20 #define NGX_HTML_ENTITY_LEN (sizeof("") - 1) | |
| 529 | 21 |
| 22 | |
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23 typedef struct { |
| 657 | 24 u_char **tables; |
| 25 ngx_str_t name; | |
| 523 | 26 |
| 657 | 27 unsigned length:16; |
| 28 unsigned utf8:1; | |
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29 } ngx_http_charset_t; |
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30 |
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32 typedef struct { |
| 657 | 33 ngx_int_t src; |
| 34 ngx_int_t dst; | |
| 529 | 35 } ngx_http_charset_recode_t; |
| 36 | |
| 37 | |
| 38 typedef struct { | |
| 657 | 39 ngx_int_t src; |
| 40 ngx_int_t dst; | |
| 41 u_char *src2dst; | |
| 42 u_char *dst2src; | |
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43 } ngx_http_charset_tables_t; |
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46 typedef struct { |
| 657 | 47 ngx_array_t charsets; /* ngx_http_charset_t */ |
| 48 ngx_array_t tables; /* ngx_http_charset_tables_t */ | |
| 49 ngx_array_t recodes; /* ngx_http_charset_recode_t */ | |
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50 } ngx_http_charset_main_conf_t; |
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51 |
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53 typedef struct { |
| 657 | 54 ngx_int_t charset; |
| 55 ngx_int_t source_charset; | |
| 56 ngx_flag_t override_charset; | |
| 2167 | 57 |
| 58 ngx_hash_t types; | |
| 59 ngx_array_t *types_keys; | |
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60 } ngx_http_charset_loc_conf_t; |
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61 |
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63 typedef struct { |
| 657 | 64 u_char *table; |
| 65 ngx_int_t charset; | |
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66 ngx_str_t charset_name; |
| 657 | 67 |
| 68 ngx_chain_t *busy; | |
| 69 ngx_chain_t *free_bufs; | |
| 70 ngx_chain_t *free_buffers; | |
| 71 | |
| 72 size_t saved_len; | |
| 73 u_char saved[NGX_UTF_LEN]; | |
| 74 | |
| 75 unsigned length:16; | |
| 76 unsigned from_utf8:1; | |
| 77 unsigned to_utf8:1; | |
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78 } ngx_http_charset_ctx_t; |
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79 |
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80 |
| 657 | 81 typedef struct { |
| 82 ngx_http_charset_tables_t *table; | |
| 83 ngx_http_charset_t *charset; | |
| 84 ngx_uint_t characters; | |
| 85 } ngx_http_charset_conf_ctx_t; | |
| 86 | |
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87 |
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88 static ngx_int_t ngx_http_destination_charset(ngx_http_request_t *r, |
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89 ngx_str_t *name); |
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90 static ngx_int_t ngx_http_main_request_charset(ngx_http_request_t *r, |
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91 ngx_str_t *name); |
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92 static ngx_int_t ngx_http_source_charset(ngx_http_request_t *r, |
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93 ngx_str_t *name); |
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94 static ngx_int_t ngx_http_get_charset(ngx_http_request_t *r, ngx_str_t *name); |
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95 static ngx_inline void ngx_http_set_charset(ngx_http_request_t *r, |
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96 ngx_str_t *charset); |
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97 static ngx_int_t ngx_http_charset_ctx(ngx_http_request_t *r, |
| 657 | 98 ngx_http_charset_t *charsets, ngx_int_t charset, ngx_int_t source_charset); |
| 99 static ngx_uint_t ngx_http_charset_recode(ngx_buf_t *b, u_char *table); | |
| 100 static ngx_chain_t *ngx_http_charset_recode_from_utf8(ngx_pool_t *pool, | |
| 101 ngx_buf_t *buf, ngx_http_charset_ctx_t *ctx); | |
| 102 static ngx_chain_t *ngx_http_charset_recode_to_utf8(ngx_pool_t *pool, | |
| 103 ngx_buf_t *buf, ngx_http_charset_ctx_t *ctx); | |
| 104 | |
| 105 static ngx_chain_t *ngx_http_charset_get_buf(ngx_pool_t *pool, | |
| 106 ngx_http_charset_ctx_t *ctx); | |
| 107 static ngx_chain_t *ngx_http_charset_get_buffer(ngx_pool_t *pool, | |
| 108 ngx_http_charset_ctx_t *ctx, size_t size); | |
| 109 | |
| 110 static char *ngx_http_charset_map_block(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 501 | 111 void *conf); |
| 657 | 112 static char *ngx_http_charset_map(ngx_conf_t *cf, ngx_command_t *dummy, |
| 113 void *conf); | |
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114 |
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115 static char *ngx_http_set_charset_slot(ngx_conf_t *cf, ngx_command_t *cmd, |
| 501 | 116 void *conf); |
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117 static ngx_int_t ngx_http_add_charset(ngx_array_t *charsets, ngx_str_t *name); |
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118 |
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119 static void *ngx_http_charset_create_main_conf(ngx_conf_t *cf); |
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120 static void *ngx_http_charset_create_loc_conf(ngx_conf_t *cf); |
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121 static char *ngx_http_charset_merge_loc_conf(ngx_conf_t *cf, |
| 501 | 122 void *parent, void *child); |
| 529 | 123 static ngx_int_t ngx_http_charset_postconfiguration(ngx_conf_t *cf); |
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124 |
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125 |
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126 static ngx_str_t ngx_http_charset_default_types[] = { |
| 2167 | 127 ngx_string("text/html"), |
| 128 ngx_string("text/xml"), | |
| 129 ngx_string("text/plain"), | |
| 130 ngx_string("text/vnd.wap.wml"), | |
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131 ngx_string("application/javascript"), |
| 2167 | 132 ngx_string("application/rss+xml"), |
| 133 ngx_null_string | |
| 134 }; | |
| 135 | |
| 136 | |
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137 static ngx_command_t ngx_http_charset_filter_commands[] = { |
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138 |
| 529 | 139 { ngx_string("charset"), |
| 559 | 140 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF |
| 141 |NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
| 529 | 142 ngx_http_set_charset_slot, |
| 143 NGX_HTTP_LOC_CONF_OFFSET, | |
| 144 offsetof(ngx_http_charset_loc_conf_t, charset), | |
| 145 NULL }, | |
| 146 | |
| 147 { ngx_string("source_charset"), | |
| 559 | 148 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF |
| 149 |NGX_HTTP_LIF_CONF|NGX_CONF_TAKE1, | |
| 529 | 150 ngx_http_set_charset_slot, |
| 151 NGX_HTTP_LOC_CONF_OFFSET, | |
| 152 offsetof(ngx_http_charset_loc_conf_t, source_charset), | |
| 153 NULL }, | |
| 154 | |
| 635 | 155 { ngx_string("override_charset"), |
| 156 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF | |
| 157 |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG, | |
| 158 ngx_conf_set_flag_slot, | |
| 159 NGX_HTTP_LOC_CONF_OFFSET, | |
| 160 offsetof(ngx_http_charset_loc_conf_t, override_charset), | |
| 161 NULL }, | |
| 162 | |
| 2167 | 163 { ngx_string("charset_types"), |
| 164 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_1MORE, | |
| 165 ngx_http_types_slot, | |
| 166 NGX_HTTP_LOC_CONF_OFFSET, | |
| 167 offsetof(ngx_http_charset_loc_conf_t, types_keys), | |
| 168 &ngx_http_charset_default_types[0] }, | |
| 169 | |
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170 { ngx_string("charset_map"), |
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171 NGX_HTTP_MAIN_CONF|NGX_CONF_BLOCK|NGX_CONF_TAKE2, |
| 657 | 172 ngx_http_charset_map_block, |
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173 NGX_HTTP_MAIN_CONF_OFFSET, |
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174 0, |
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175 NULL }, |
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176 |
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177 ngx_null_command |
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178 }; |
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179 |
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180 |
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181 static ngx_http_module_t ngx_http_charset_filter_module_ctx = { |
| 509 | 182 NULL, /* preconfiguration */ |
| 529 | 183 ngx_http_charset_postconfiguration, /* postconfiguration */ |
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184 |
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185 ngx_http_charset_create_main_conf, /* create main configuration */ |
| 529 | 186 NULL, /* init main configuration */ |
|
99
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187 |
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188 NULL, /* create server configuration */ |
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189 NULL, /* merge server configuration */ |
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190 |
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191 ngx_http_charset_create_loc_conf, /* create location configuration */ |
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192 ngx_http_charset_merge_loc_conf /* merge location configuration */ |
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193 }; |
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194 |
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195 |
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196 ngx_module_t ngx_http_charset_filter_module = { |
| 509 | 197 NGX_MODULE_V1, |
|
99
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198 &ngx_http_charset_filter_module_ctx, /* module context */ |
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199 ngx_http_charset_filter_commands, /* module directives */ |
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200 NGX_HTTP_MODULE, /* module type */ |
| 541 | 201 NULL, /* init master */ |
| 681 | 202 NULL, /* init module */ |
| 541 | 203 NULL, /* init process */ |
| 204 NULL, /* init thread */ | |
| 205 NULL, /* exit thread */ | |
| 206 NULL, /* exit process */ | |
| 207 NULL, /* exit master */ | |
| 208 NGX_MODULE_V1_PADDING | |
|
99
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209 }; |
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210 |
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211 |
|
155
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212 static ngx_http_output_header_filter_pt ngx_http_next_header_filter; |
|
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213 static ngx_http_output_body_filter_pt ngx_http_next_body_filter; |
|
99
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214 |
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215 |
| 501 | 216 static ngx_int_t |
| 217 ngx_http_charset_header_filter(ngx_http_request_t *r) | |
|
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218 { |
| 635 | 219 ngx_int_t charset, source_charset; |
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220 ngx_str_t dst, src; |
|
339
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221 ngx_http_charset_t *charsets; |
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222 ngx_http_charset_main_conf_t *mcf; |
|
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223 |
| 653 | 224 if (r == r->main) { |
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225 charset = ngx_http_destination_charset(r, &dst); |
| 653 | 226 |
| 227 } else { | |
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228 charset = ngx_http_main_request_charset(r, &dst); |
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229 } |
| 657 | 230 |
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231 if (charset == NGX_ERROR) { |
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232 return NGX_ERROR; |
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233 } |
| 653 | 234 |
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235 if (charset == NGX_DECLINED) { |
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236 return ngx_http_next_header_filter(r); |
|
389
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237 } |
|
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238 |
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239 /* charset: charset index or NGX_HTTP_NO_CHARSET */ |
|
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240 |
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241 source_charset = ngx_http_source_charset(r, &src); |
|
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242 |
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243 if (source_charset == NGX_ERROR) { |
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244 return NGX_ERROR; |
| 657 | 245 } |
| 635 | 246 |
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247 /* |
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248 * source_charset: charset index, NGX_HTTP_NO_CHARSET, |
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249 * or NGX_HTTP_CHARSET_OFF |
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250 */ |
| 635 | 251 |
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252 ngx_log_debug2(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
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253 "charset: \"%V\" > \"%V\"", &src, &dst); |
| 663 | 254 |
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255 if (source_charset == NGX_HTTP_CHARSET_OFF) { |
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256 ngx_http_set_charset(r, &dst); |
| 635 | 257 |
| 657 | 258 return ngx_http_next_header_filter(r); |
| 259 } | |
| 635 | 260 |
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261 if (charset == NGX_HTTP_NO_CHARSET |
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262 || source_charset == NGX_HTTP_NO_CHARSET) |
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263 { |
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264 if (source_charset != charset |
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265 || ngx_strncasecmp(dst.data, src.data, dst.len) != 0) |
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266 { |
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267 goto no_charset_map; |
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268 } |
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269 |
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270 ngx_http_set_charset(r, &dst); |
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271 |
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272 return ngx_http_next_header_filter(r); |
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273 } |
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274 |
|
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275 if (source_charset == charset) { |
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276 r->headers_out.content_type.len = r->headers_out.content_type_len; |
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277 |
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278 ngx_http_set_charset(r, &dst); |
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279 |
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280 return ngx_http_next_header_filter(r); |
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281 } |
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282 |
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283 /* source_charset != charset */ |
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284 |
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285 if (r->headers_out.content_encoding |
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286 && r->headers_out.content_encoding->value.len) |
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287 { |
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288 return ngx_http_next_header_filter(r); |
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289 } |
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290 |
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291 mcf = ngx_http_get_module_main_conf(r, ngx_http_charset_filter_module); |
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292 charsets = mcf->charsets.elts; |
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293 |
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294 if (charsets[source_charset].tables == NULL |
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295 || charsets[source_charset].tables[charset] == NULL) |
| 657 | 296 { |
| 663 | 297 goto no_charset_map; |
|
133
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298 } |
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299 |
| 657 | 300 r->headers_out.content_type.len = r->headers_out.content_type_len; |
| 301 | |
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302 ngx_http_set_charset(r, &dst); |
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303 |
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304 return ngx_http_charset_ctx(r, charsets, charset, source_charset); |
| 663 | 305 |
| 306 no_charset_map: | |
| 307 | |
| 308 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 1587 | 309 "no \"charset_map\" between the charsets \"%V\" and \"%V\"", |
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310 &src, &dst); |
| 663 | 311 |
| 312 return ngx_http_next_header_filter(r); | |
| 657 | 313 } |
| 314 | |
| 315 | |
| 316 static ngx_int_t | |
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317 ngx_http_destination_charset(ngx_http_request_t *r, ngx_str_t *name) |
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318 { |
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319 ngx_int_t charset; |
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320 ngx_http_charset_t *charsets; |
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321 ngx_http_variable_value_t *vv; |
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322 ngx_http_charset_loc_conf_t *mlcf; |
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323 ngx_http_charset_main_conf_t *mcf; |
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324 |
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325 if (r->headers_out.content_type.len == 0) { |
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326 return NGX_DECLINED; |
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327 } |
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328 |
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329 if (r->headers_out.override_charset |
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330 && r->headers_out.override_charset->len) |
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331 { |
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332 *name = *r->headers_out.override_charset; |
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333 |
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334 charset = ngx_http_get_charset(r, name); |
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335 |
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336 if (charset != NGX_HTTP_NO_CHARSET) { |
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337 return charset; |
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338 } |
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339 |
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340 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, |
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341 "unknown charset \"%V\" to override", name); |
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342 |
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343 return NGX_DECLINED; |
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344 } |
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345 |
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346 mlcf = ngx_http_get_module_loc_conf(r, ngx_http_charset_filter_module); |
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347 charset = mlcf->charset; |
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348 |
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349 if (charset == NGX_HTTP_CHARSET_OFF) { |
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350 return NGX_DECLINED; |
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351 } |
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352 |
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353 if (r->headers_out.charset.len) { |
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354 if (mlcf->override_charset == 0) { |
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355 return NGX_DECLINED; |
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356 } |
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357 |
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358 } else { |
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359 if (ngx_http_test_content_type(r, &mlcf->types) == NULL) { |
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360 return NGX_DECLINED; |
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361 } |
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362 } |
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363 |
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364 if (charset < NGX_HTTP_CHARSET_VAR) { |
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365 mcf = ngx_http_get_module_main_conf(r, ngx_http_charset_filter_module); |
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366 charsets = mcf->charsets.elts; |
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367 *name = charsets[charset].name; |
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368 return charset; |
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369 } |
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370 |
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371 vv = ngx_http_get_indexed_variable(r, charset - NGX_HTTP_CHARSET_VAR); |
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372 |
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373 if (vv == NULL || vv->not_found) { |
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374 return NGX_ERROR; |
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375 } |
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376 |
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377 name->len = vv->len; |
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378 name->data = vv->data; |
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379 |
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380 return ngx_http_get_charset(r, name); |
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381 } |
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382 |
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383 |
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384 static ngx_int_t |
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385 ngx_http_main_request_charset(ngx_http_request_t *r, ngx_str_t *src) |
| 657 | 386 { |
|
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387 ngx_int_t charset; |
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388 ngx_str_t *main_charset; |
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389 ngx_http_charset_ctx_t *ctx; |
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390 |
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391 ctx = ngx_http_get_module_ctx(r->main, ngx_http_charset_filter_module); |
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392 |
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393 if (ctx) { |
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394 *src = ctx->charset_name; |
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395 return ctx->charset; |
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396 } |
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397 |
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398 main_charset = &r->main->headers_out.charset; |
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399 |
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400 if (main_charset->len == 0) { |
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401 return NGX_DECLINED; |
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402 } |
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403 |
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404 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_charset_ctx_t)); |
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405 if (ctx == NULL) { |
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406 return NGX_ERROR; |
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407 } |
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408 |
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409 ngx_http_set_ctx(r->main, ctx, ngx_http_charset_filter_module); |
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410 |
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411 charset = ngx_http_get_charset(r, main_charset); |
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412 |
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413 ctx->charset = charset; |
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414 ctx->charset_name = *main_charset; |
| 2890 | 415 *src = *main_charset; |
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416 |
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417 return charset; |
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418 } |
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419 |
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420 |
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421 static ngx_int_t |
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422 ngx_http_source_charset(ngx_http_request_t *r, ngx_str_t *name) |
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423 { |
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424 ngx_int_t charset; |
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425 ngx_http_charset_t *charsets; |
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426 ngx_http_variable_value_t *vv; |
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427 ngx_http_charset_loc_conf_t *lcf; |
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428 ngx_http_charset_main_conf_t *mcf; |
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429 |
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430 if (r->headers_out.charset.len) { |
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431 *name = r->headers_out.charset; |
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432 return ngx_http_get_charset(r, name); |
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433 } |
|
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changeset
|
434 |
|
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435 lcf = ngx_http_get_module_loc_conf(r, ngx_http_charset_filter_module); |
|
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436 |
|
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437 charset = lcf->source_charset; |
|
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changeset
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438 |
|
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changeset
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439 if (charset == NGX_HTTP_CHARSET_OFF) { |
|
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440 name->len = 0; |
|
9278
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441 name->data = NULL; |
|
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442 return charset; |
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443 } |
|
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444 |
|
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445 if (charset < NGX_HTTP_CHARSET_VAR) { |
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446 mcf = ngx_http_get_module_main_conf(r, ngx_http_charset_filter_module); |
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447 charsets = mcf->charsets.elts; |
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448 *name = charsets[charset].name; |
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449 return charset; |
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450 } |
|
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451 |
|
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452 vv = ngx_http_get_indexed_variable(r, charset - NGX_HTTP_CHARSET_VAR); |
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changeset
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453 |
|
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454 if (vv == NULL || vv->not_found) { |
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455 return NGX_ERROR; |
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456 } |
|
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457 |
|
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458 name->len = vv->len; |
|
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459 name->data = vv->data; |
|
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changeset
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460 |
|
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461 return ngx_http_get_charset(r, name); |
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462 } |
|
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changeset
|
463 |
|
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changeset
|
464 |
|
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465 static ngx_int_t |
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466 ngx_http_get_charset(ngx_http_request_t *r, ngx_str_t *name) |
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467 { |
|
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468 ngx_uint_t i, n; |
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469 ngx_http_charset_t *charset; |
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470 ngx_http_charset_main_conf_t *mcf; |
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changeset
|
471 |
|
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472 mcf = ngx_http_get_module_main_conf(r, ngx_http_charset_filter_module); |
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changeset
|
473 |
|
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changeset
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474 charset = mcf->charsets.elts; |
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475 n = mcf->charsets.nelts; |
| 657 | 476 |
| 477 for (i = 0; i < n; i++) { | |
|
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478 if (charset[i].name.len != name->len) { |
|
752
907361d07f25
ngx_http_charset_module supports the variables
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parents:
681
diff
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|
479 continue; |
|
907361d07f25
ngx_http_charset_module supports the variables
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parents:
681
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changeset
|
480 } |
|
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parents:
681
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changeset
|
481 |
|
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482 if (ngx_strncasecmp(charset[i].name.data, name->data, name->len) == 0) { |
| 657 | 483 return i; |
| 484 } | |
| 485 } | |
| 486 | |
| 487 return NGX_HTTP_NO_CHARSET; | |
| 488 } | |
| 489 | |
| 490 | |
|
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491 static ngx_inline void |
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492 ngx_http_set_charset(ngx_http_request_t *r, ngx_str_t *charset) |
| 657 | 493 { |
|
2891
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494 if (r != r->main) { |
|
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495 return; |
|
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|
496 } |
|
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|
497 |
|
99
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nginx-0.0.1-2003-06-02-19:24:30 import
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|
498 if (r->headers_out.status == NGX_HTTP_MOVED_PERMANENTLY |
| 501 | 499 || r->headers_out.status == NGX_HTTP_MOVED_TEMPORARILY) |
|
99
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500 { |
|
155
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501 /* |
| 635 | 502 * do not set charset for the redirect because NN 4.x |
| 503 * use this charset instead of the next page charset | |
|
155
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504 */ |
|
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|
505 |
|
99
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parents:
diff
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|
506 r->headers_out.charset.len = 0; |
|
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507 return; |
|
339
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|
508 } |
|
99
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nginx-0.0.1-2003-06-02-19:24:30 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
509 |
|
2889
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changeset
|
510 r->headers_out.charset = *charset; |
|
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511 } |
|
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|
512 |
| 635 | 513 |
|
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changeset
|
514 static ngx_int_t |
|
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|
515 ngx_http_charset_ctx(ngx_http_request_t *r, ngx_http_charset_t *charsets, |
|
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516 ngx_int_t charset, ngx_int_t source_charset) |
|
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changeset
|
517 { |
|
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|
518 ngx_http_charset_ctx_t *ctx; |
|
339
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|
519 |
| 501 | 520 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_charset_ctx_t)); |
| 521 if (ctx == NULL) { | |
| 522 return NGX_ERROR; | |
| 523 } | |
| 524 | |
| 525 ngx_http_set_ctx(r, ctx, ngx_http_charset_filter_module); | |
| 526 | |
| 635 | 527 ctx->table = charsets[source_charset].tables[charset]; |
| 528 ctx->charset = charset; | |
| 2890 | 529 ctx->charset_name = charsets[charset].name; |
| 657 | 530 ctx->length = charsets[charset].length; |
| 531 ctx->from_utf8 = charsets[source_charset].utf8; | |
| 532 ctx->to_utf8 = charsets[charset].utf8; | |
| 533 | |
| 663 | 534 r->filter_need_in_memory = 1; |
| 535 | |
| 657 | 536 if ((ctx->to_utf8 || ctx->from_utf8) && r == r->main) { |
| 537 ngx_http_clear_content_length(r); | |
| 663 | 538 |
| 539 } else { | |
| 540 r->filter_need_temporary = 1; | |
| 657 | 541 } |
|
339
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|
542 |
|
155
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|
543 return ngx_http_next_header_filter(r); |
|
99
a059e1aa65d4
nginx-0.0.1-2003-06-02-19:24:30 import
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parents:
diff
changeset
|
544 } |
|
a059e1aa65d4
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parents:
diff
changeset
|
545 |
|
a059e1aa65d4
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parents:
diff
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|
546 |
| 501 | 547 static ngx_int_t |
| 548 ngx_http_charset_body_filter(ngx_http_request_t *r, ngx_chain_t *in) | |
|
99
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diff
changeset
|
549 { |
| 657 | 550 ngx_int_t rc; |
| 551 ngx_buf_t *b; | |
| 552 ngx_chain_t *cl, *out, **ll; | |
| 635 | 553 ngx_http_charset_ctx_t *ctx; |
|
339
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|
554 |
|
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|
555 ctx = ngx_http_get_module_ctx(r, ngx_http_charset_filter_module); |
|
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|
556 |
| 635 | 557 if (ctx == NULL || ctx->table == NULL) { |
|
339
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|
558 return ngx_http_next_body_filter(r, in); |
|
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|
559 } |
|
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|
560 |
| 657 | 561 if ((ctx->to_utf8 || ctx->from_utf8) || ctx->busy) { |
| 562 | |
| 563 out = NULL; | |
| 564 ll = &out; | |
| 565 | |
| 566 for (cl = in; cl; cl = cl->next) { | |
| 567 b = cl->buf; | |
| 568 | |
| 569 if (ngx_buf_size(b) == 0) { | |
| 665 | 570 |
| 571 *ll = ngx_alloc_chain_link(r->pool); | |
| 572 if (*ll == NULL) { | |
| 573 return NGX_ERROR; | |
| 574 } | |
| 575 | |
| 576 (*ll)->buf = b; | |
| 577 (*ll)->next = NULL; | |
| 578 | |
| 579 ll = &(*ll)->next; | |
| 580 | |
| 657 | 581 continue; |
| 582 } | |
| 583 | |
| 584 if (ctx->to_utf8) { | |
| 585 *ll = ngx_http_charset_recode_to_utf8(r->pool, b, ctx); | |
| 586 | |
| 587 } else { | |
| 588 *ll = ngx_http_charset_recode_from_utf8(r->pool, b, ctx); | |
| 589 } | |
| 590 | |
| 591 if (*ll == NULL) { | |
| 592 return NGX_ERROR; | |
| 593 } | |
| 594 | |
| 595 while (*ll) { | |
| 596 ll = &(*ll)->next; | |
| 597 } | |
| 598 } | |
| 599 | |
| 600 rc = ngx_http_next_body_filter(r, out); | |
| 601 | |
| 602 if (out) { | |
| 603 if (ctx->busy == NULL) { | |
| 604 ctx->busy = out; | |
| 605 | |
| 606 } else { | |
| 607 for (cl = ctx->busy; cl->next; cl = cl->next) { /* void */ } | |
| 608 cl->next = out; | |
| 609 } | |
| 610 } | |
| 611 | |
| 612 while (ctx->busy) { | |
| 613 | |
| 614 cl = ctx->busy; | |
| 615 b = cl->buf; | |
| 616 | |
| 617 if (ngx_buf_size(b) != 0) { | |
| 618 break; | |
| 619 } | |
| 620 | |
| 621 ctx->busy = cl->next; | |
| 622 | |
| 623 if (b->tag != (ngx_buf_tag_t) &ngx_http_charset_filter_module) { | |
| 624 continue; | |
| 625 } | |
| 626 | |
| 627 if (b->shadow) { | |
| 628 b->shadow->pos = b->shadow->last; | |
| 629 } | |
| 630 | |
| 631 if (b->pos) { | |
| 632 cl->next = ctx->free_buffers; | |
| 633 ctx->free_buffers = cl; | |
| 634 continue; | |
| 635 } | |
| 636 | |
| 637 cl->next = ctx->free_bufs; | |
| 638 ctx->free_bufs = cl; | |
| 639 } | |
| 640 | |
| 641 return rc; | |
| 642 } | |
| 643 | |
|
339
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644 for (cl = in; cl; cl = cl->next) { |
| 635 | 645 (void) ngx_http_charset_recode(cl->buf, ctx->table); |
|
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646 } |
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647 |
|
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648 return ngx_http_next_body_filter(r, in); |
|
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649 } |
|
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650 |
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651 |
| 501 | 652 static ngx_uint_t |
| 635 | 653 ngx_http_charset_recode(ngx_buf_t *b, u_char *table) |
|
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654 { |
|
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655 u_char *p, *last; |
| 635 | 656 |
|
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657 last = b->last; |
| 455 | 658 |
|
1944
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659 for (p = b->pos; p < last; p++) { |
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660 |
|
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661 if (*p != table[*p]) { |
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662 goto recode; |
| 455 | 663 } |
| 664 } | |
| 665 | |
| 635 | 666 return 0; |
|
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667 |
|
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668 recode: |
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669 |
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670 do { |
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671 if (*p != table[*p]) { |
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672 *p = table[*p]; |
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673 } |
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674 |
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675 p++; |
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676 |
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677 } while (p < last); |
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678 |
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679 b->in_file = 0; |
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680 |
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681 return 1; |
|
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682 } |
|
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683 |
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|
684 |
| 657 | 685 static ngx_chain_t * |
| 686 ngx_http_charset_recode_from_utf8(ngx_pool_t *pool, ngx_buf_t *buf, | |
| 687 ngx_http_charset_ctx_t *ctx) | |
| 688 { | |
| 689 size_t len, size; | |
| 690 u_char c, *p, *src, *dst, *saved, **table; | |
| 691 uint32_t n; | |
| 692 ngx_buf_t *b; | |
| 693 ngx_uint_t i; | |
| 694 ngx_chain_t *out, *cl, **ll; | |
| 695 | |
| 696 src = buf->pos; | |
| 697 | |
| 698 if (ctx->saved_len == 0) { | |
| 699 | |
| 700 for ( /* void */ ; src < buf->last; src++) { | |
| 701 | |
| 702 if (*src < 0x80) { | |
| 703 continue; | |
| 704 } | |
| 705 | |
| 706 len = src - buf->pos; | |
| 707 | |
| 708 if (len > 512) { | |
| 709 out = ngx_http_charset_get_buf(pool, ctx); | |
| 710 if (out == NULL) { | |
| 711 return NULL; | |
| 712 } | |
| 713 | |
| 714 b = out->buf; | |
| 715 | |
| 716 b->temporary = buf->temporary; | |
| 717 b->memory = buf->memory; | |
| 718 b->mmap = buf->mmap; | |
| 719 b->flush = buf->flush; | |
| 720 | |
| 721 b->pos = buf->pos; | |
| 722 b->last = src; | |
| 723 | |
| 724 out->buf = b; | |
| 725 out->next = NULL; | |
| 726 | |
| 727 size = buf->last - src; | |
| 728 | |
| 729 saved = src; | |
|
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730 n = ngx_utf8_decode(&saved, size); |
| 657 | 731 |
| 732 if (n == 0xfffffffe) { | |
| 733 /* incomplete UTF-8 symbol */ | |
| 734 | |
| 735 ngx_memcpy(ctx->saved, src, size); | |
| 736 ctx->saved_len = size; | |
| 737 | |
| 738 b->shadow = buf; | |
| 739 | |
| 740 return out; | |
| 741 } | |
| 742 | |
| 743 } else { | |
| 744 out = NULL; | |
| 745 size = len + buf->last - src; | |
| 746 src = buf->pos; | |
| 747 } | |
| 748 | |
| 749 if (size < NGX_HTML_ENTITY_LEN) { | |
| 750 size += NGX_HTML_ENTITY_LEN; | |
| 751 } | |
| 752 | |
| 753 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
| 754 if (cl == NULL) { | |
| 755 return NULL; | |
| 756 } | |
| 757 | |
| 758 if (out) { | |
| 759 out->next = cl; | |
| 760 | |
| 761 } else { | |
| 762 out = cl; | |
| 763 } | |
| 764 | |
| 765 b = cl->buf; | |
| 766 dst = b->pos; | |
| 767 | |
| 768 goto recode; | |
| 769 } | |
| 770 | |
| 771 out = ngx_alloc_chain_link(pool); | |
| 772 if (out == NULL) { | |
| 773 return NULL; | |
| 774 } | |
| 775 | |
| 776 out->buf = buf; | |
| 777 out->next = NULL; | |
| 778 | |
| 779 return out; | |
| 780 } | |
| 781 | |
| 782 /* process incomplete UTF sequence from previous buffer */ | |
| 783 | |
| 784 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
| 785 "http charset utf saved: %z", ctx->saved_len); | |
| 786 | |
| 787 p = src; | |
| 788 | |
| 789 for (i = ctx->saved_len; i < NGX_UTF_LEN; i++) { | |
| 790 ctx->saved[i] = *p++; | |
| 791 | |
| 792 if (p == buf->last) { | |
| 793 break; | |
| 794 } | |
| 795 } | |
| 796 | |
| 797 saved = ctx->saved; | |
|
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changeset
|
798 n = ngx_utf8_decode(&saved, i); |
| 657 | 799 |
| 800 c = '\0'; | |
| 801 | |
| 802 if (n < 0x10000) { | |
| 803 table = (u_char **) ctx->table; | |
| 804 p = table[n >> 8]; | |
| 805 | |
| 806 if (p) { | |
| 807 c = p[n & 0xff]; | |
| 808 } | |
| 809 | |
| 810 } else if (n == 0xfffffffe) { | |
| 811 | |
| 812 /* incomplete UTF-8 symbol */ | |
| 813 | |
| 814 if (i < NGX_UTF_LEN) { | |
| 815 out = ngx_http_charset_get_buf(pool, ctx); | |
| 816 if (out == NULL) { | |
| 817 return NULL; | |
| 818 } | |
| 819 | |
| 820 b = out->buf; | |
| 821 | |
| 822 b->pos = buf->pos; | |
| 823 b->last = buf->last; | |
| 824 b->sync = 1; | |
| 825 b->shadow = buf; | |
| 826 | |
| 827 ngx_memcpy(&ctx->saved[ctx->saved_len], src, i); | |
| 828 ctx->saved_len += i; | |
| 829 | |
| 830 return out; | |
| 831 } | |
| 832 } | |
| 833 | |
| 834 size = buf->last - buf->pos; | |
| 835 | |
| 836 if (size < NGX_HTML_ENTITY_LEN) { | |
| 837 size += NGX_HTML_ENTITY_LEN; | |
| 838 } | |
| 839 | |
| 840 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
| 841 if (cl == NULL) { | |
| 842 return NULL; | |
| 843 } | |
| 844 | |
| 845 out = cl; | |
| 846 | |
| 847 b = cl->buf; | |
| 848 dst = b->pos; | |
| 849 | |
| 850 if (c) { | |
| 851 *dst++ = c; | |
| 852 | |
| 853 } else if (n == 0xfffffffe) { | |
| 854 *dst++ = '?'; | |
| 855 | |
| 856 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
| 857 "http charset invalid utf 0"); | |
| 858 | |
| 859 saved = &ctx->saved[NGX_UTF_LEN]; | |
| 860 | |
| 861 } else if (n > 0x10ffff) { | |
| 862 *dst++ = '?'; | |
| 863 | |
| 864 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
| 865 "http charset invalid utf 1"); | |
| 866 | |
| 867 } else { | |
| 868 dst = ngx_sprintf(dst, "&#%uD;", n); | |
| 869 } | |
| 870 | |
| 871 src += (saved - ctx->saved) - ctx->saved_len; | |
| 872 ctx->saved_len = 0; | |
| 873 | |
| 874 recode: | |
| 875 | |
| 876 ll = &cl->next; | |
| 877 | |
| 878 table = (u_char **) ctx->table; | |
| 879 | |
| 880 while (src < buf->last) { | |
| 881 | |
| 882 if ((size_t) (b->end - dst) < NGX_HTML_ENTITY_LEN) { | |
| 883 b->last = dst; | |
| 884 | |
| 885 size = buf->last - src + NGX_HTML_ENTITY_LEN; | |
| 886 | |
| 887 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
| 888 if (cl == NULL) { | |
| 889 return NULL; | |
| 890 } | |
| 891 | |
| 892 *ll = cl; | |
| 893 ll = &cl->next; | |
| 894 | |
| 895 b = cl->buf; | |
| 896 dst = b->pos; | |
| 897 } | |
| 898 | |
| 899 if (*src < 0x80) { | |
| 900 *dst++ = *src++; | |
| 901 continue; | |
| 902 } | |
| 903 | |
| 904 len = buf->last - src; | |
| 905 | |
|
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2050
diff
changeset
|
906 n = ngx_utf8_decode(&src, len); |
| 657 | 907 |
| 908 if (n < 0x10000) { | |
| 909 | |
| 910 p = table[n >> 8]; | |
| 911 | |
| 912 if (p) { | |
| 913 c = p[n & 0xff]; | |
| 914 | |
| 915 if (c) { | |
| 916 *dst++ = c; | |
| 917 continue; | |
| 918 } | |
| 919 } | |
| 920 | |
| 921 dst = ngx_sprintf(dst, "&#%uD;", n); | |
| 922 | |
| 923 continue; | |
| 924 } | |
| 925 | |
| 926 if (n == 0xfffffffe) { | |
| 927 /* incomplete UTF-8 symbol */ | |
| 928 | |
| 929 ngx_memcpy(ctx->saved, src, len); | |
| 930 ctx->saved_len = len; | |
| 931 | |
| 932 if (b->pos == dst) { | |
| 933 b->sync = 1; | |
| 934 b->temporary = 0; | |
| 935 } | |
| 936 | |
| 937 break; | |
| 938 } | |
| 939 | |
| 940 if (n > 0x10ffff) { | |
| 941 *dst++ = '?'; | |
| 942 | |
| 943 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, pool->log, 0, | |
| 944 "http charset invalid utf 2"); | |
| 945 | |
| 946 continue; | |
| 947 } | |
| 948 | |
| 949 /* n > 0xffff */ | |
| 950 | |
| 951 dst = ngx_sprintf(dst, "&#%uD;", n); | |
| 952 } | |
| 953 | |
| 954 b->last = dst; | |
| 955 | |
| 956 b->last_buf = buf->last_buf; | |
| 957 b->last_in_chain = buf->last_in_chain; | |
| 958 b->flush = buf->flush; | |
| 959 | |
| 960 b->shadow = buf; | |
| 961 | |
| 962 return out; | |
| 963 } | |
| 964 | |
| 965 | |
| 966 static ngx_chain_t * | |
| 967 ngx_http_charset_recode_to_utf8(ngx_pool_t *pool, ngx_buf_t *buf, | |
| 968 ngx_http_charset_ctx_t *ctx) | |
| 969 { | |
| 970 size_t len, size; | |
| 971 u_char *p, *src, *dst, *table; | |
| 972 ngx_buf_t *b; | |
| 973 ngx_chain_t *out, *cl, **ll; | |
| 974 | |
| 975 table = ctx->table; | |
| 976 | |
| 977 for (src = buf->pos; src < buf->last; src++) { | |
| 978 if (table[*src * NGX_UTF_LEN] == '\1') { | |
| 979 continue; | |
| 980 } | |
| 981 | |
| 982 goto recode; | |
| 983 } | |
| 984 | |
| 985 out = ngx_alloc_chain_link(pool); | |
| 986 if (out == NULL) { | |
| 987 return NULL; | |
| 988 } | |
| 989 | |
| 990 out->buf = buf; | |
| 991 out->next = NULL; | |
| 992 | |
| 993 return out; | |
| 994 | |
| 995 recode: | |
| 996 | |
| 997 /* | |
| 998 * we assume that there are about half of characters to be recoded, | |
| 999 * so we preallocate "size / 2 + size / 2 * ctx->length" | |
| 1000 */ | |
| 1001 | |
| 1002 len = src - buf->pos; | |
| 1003 | |
| 1004 if (len > 512) { | |
| 1005 out = ngx_http_charset_get_buf(pool, ctx); | |
| 1006 if (out == NULL) { | |
| 1007 return NULL; | |
| 1008 } | |
| 1009 | |
| 1010 b = out->buf; | |
| 1011 | |
| 1012 b->temporary = buf->temporary; | |
| 1013 b->memory = buf->memory; | |
| 1014 b->mmap = buf->mmap; | |
| 1015 b->flush = buf->flush; | |
| 1016 | |
| 1017 b->pos = buf->pos; | |
| 1018 b->last = src; | |
| 1019 | |
| 1020 out->buf = b; | |
| 1021 out->next = NULL; | |
| 1022 | |
| 1023 size = buf->last - src; | |
| 1024 size = size / 2 + size / 2 * ctx->length; | |
| 1025 | |
| 1026 } else { | |
| 1027 out = NULL; | |
| 1028 | |
| 1029 size = buf->last - src; | |
| 1030 size = len + size / 2 + size / 2 * ctx->length; | |
| 1031 | |
| 1032 src = buf->pos; | |
| 1033 } | |
| 1034 | |
| 1035 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
| 1036 if (cl == NULL) { | |
| 1037 return NULL; | |
| 1038 } | |
| 1039 | |
| 1040 if (out) { | |
| 1041 out->next = cl; | |
| 1042 | |
| 1043 } else { | |
| 1044 out = cl; | |
| 1045 } | |
| 1046 | |
| 1047 ll = &cl->next; | |
| 1048 | |
| 1049 b = cl->buf; | |
| 1050 dst = b->pos; | |
| 1051 | |
| 1052 while (src < buf->last) { | |
| 1053 | |
| 1054 p = &table[*src++ * NGX_UTF_LEN]; | |
| 1055 len = *p++; | |
| 1056 | |
| 1057 if ((size_t) (b->end - dst) < len) { | |
| 1058 b->last = dst; | |
| 1059 | |
| 1060 size = buf->last - src; | |
| 1061 size = len + size / 2 + size / 2 * ctx->length; | |
| 1062 | |
| 1063 cl = ngx_http_charset_get_buffer(pool, ctx, size); | |
| 1064 if (cl == NULL) { | |
| 1065 return NULL; | |
| 1066 } | |
| 1067 | |
| 1068 *ll = cl; | |
| 1069 ll = &cl->next; | |
| 1070 | |
| 1071 b = cl->buf; | |
| 1072 dst = b->pos; | |
| 1073 } | |
| 1074 | |
| 1075 while (len) { | |
| 1076 *dst++ = *p++; | |
| 1077 len--; | |
| 1078 } | |
| 1079 } | |
| 1080 | |
| 1081 b->last = dst; | |
| 1082 | |
| 1083 b->last_buf = buf->last_buf; | |
| 1084 b->last_in_chain = buf->last_in_chain; | |
| 1085 b->flush = buf->flush; | |
| 1086 | |
| 1087 b->shadow = buf; | |
| 1088 | |
| 1089 return out; | |
| 1090 } | |
| 1091 | |
| 1092 | |
| 1093 static ngx_chain_t * | |
| 1094 ngx_http_charset_get_buf(ngx_pool_t *pool, ngx_http_charset_ctx_t *ctx) | |
| 1095 { | |
| 1096 ngx_chain_t *cl; | |
| 1097 | |
| 1098 cl = ctx->free_bufs; | |
| 1099 | |
| 1100 if (cl) { | |
| 1101 ctx->free_bufs = cl->next; | |
| 1102 | |
| 1103 cl->buf->shadow = NULL; | |
| 1104 cl->next = NULL; | |
| 1105 | |
| 1106 return cl; | |
| 1107 } | |
| 1108 | |
| 1109 cl = ngx_alloc_chain_link(pool); | |
| 1110 if (cl == NULL) { | |
| 1111 return NULL; | |
| 1112 } | |
| 1113 | |
| 1114 cl->buf = ngx_calloc_buf(pool); | |
| 1115 if (cl->buf == NULL) { | |
| 1116 return NULL; | |
| 1117 } | |
| 1118 | |
| 1119 cl->next = NULL; | |
| 1120 | |
| 1121 cl->buf->tag = (ngx_buf_tag_t) &ngx_http_charset_filter_module; | |
| 1122 | |
| 1123 return cl; | |
| 1124 } | |
| 1125 | |
| 1126 | |
| 1127 static ngx_chain_t * | |
| 1128 ngx_http_charset_get_buffer(ngx_pool_t *pool, ngx_http_charset_ctx_t *ctx, | |
| 1129 size_t size) | |
| 1130 { | |
| 1131 ngx_buf_t *b; | |
| 1132 ngx_chain_t *cl, **ll; | |
| 1133 | |
| 1134 for (ll = &ctx->free_buffers, cl = ctx->free_buffers; | |
| 1135 cl; | |
| 1136 ll = &cl->next, cl = cl->next) | |
| 1137 { | |
| 1138 b = cl->buf; | |
| 1139 | |
| 1140 if ((size_t) (b->end - b->start) >= size) { | |
| 1141 *ll = cl->next; | |
| 1142 cl->next = NULL; | |
| 1143 | |
| 1144 b->pos = b->start; | |
| 1145 b->temporary = 1; | |
| 1146 b->shadow = NULL; | |
| 1147 | |
| 1148 return cl; | |
| 1149 } | |
| 1150 } | |
| 1151 | |
| 1152 cl = ngx_alloc_chain_link(pool); | |
| 1153 if (cl == NULL) { | |
| 1154 return NULL; | |
| 1155 } | |
| 1156 | |
| 1157 cl->buf = ngx_create_temp_buf(pool, size); | |
| 1158 if (cl->buf == NULL) { | |
| 1159 return NULL; | |
| 1160 } | |
| 1161 | |
| 1162 cl->next = NULL; | |
| 1163 | |
| 1164 cl->buf->temporary = 1; | |
| 1165 cl->buf->tag = (ngx_buf_tag_t) &ngx_http_charset_filter_module; | |
| 1166 | |
| 1167 return cl; | |
| 1168 } | |
| 1169 | |
| 1170 | |
| 501 | 1171 static char * |
| 657 | 1172 ngx_http_charset_map_block(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
|
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1173 { |
|
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1174 ngx_http_charset_main_conf_t *mcf = conf; |
|
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1175 |
| 657 | 1176 char *rv; |
| 1177 u_char *p, *dst2src, **pp; | |
| 1178 ngx_int_t src, dst; | |
| 1179 ngx_uint_t i, n; | |
| 1180 ngx_str_t *value; | |
| 1181 ngx_conf_t pvcf; | |
| 1182 ngx_http_charset_t *charset; | |
| 1183 ngx_http_charset_tables_t *table; | |
| 1184 ngx_http_charset_conf_ctx_t ctx; | |
|
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1185 |
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1186 value = cf->args->elts; |
|
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1187 |
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1188 src = ngx_http_add_charset(&mcf->charsets, &value[1]); |
|
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1189 if (src == NGX_ERROR) { |
|
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1190 return NGX_CONF_ERROR; |
|
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1191 } |
|
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1192 |
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1193 dst = ngx_http_add_charset(&mcf->charsets, &value[2]); |
|
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1194 if (dst == NGX_ERROR) { |
|
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1195 return NGX_CONF_ERROR; |
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1196 } |
|
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1197 |
|
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1198 if (src == dst) { |
|
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1199 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
|
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1200 "\"charset_map\" between the same charsets " |
| 461 | 1201 "\"%V\" and \"%V\"", &value[1], &value[2]); |
|
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1202 return NGX_CONF_ERROR; |
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1203 } |
|
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1204 |
|
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1205 table = mcf->tables.elts; |
|
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1206 for (i = 0; i < mcf->tables.nelts; i++) { |
|
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1207 if ((src == table->src && dst == table->dst) |
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1208 || (src == table->dst && dst == table->src)) |
|
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|
1209 { |
|
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1210 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
|
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1211 "duplicate \"charset_map\" between " |
| 461 | 1212 "\"%V\" and \"%V\"", &value[1], &value[2]); |
|
339
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1213 return NGX_CONF_ERROR; |
|
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|
1214 } |
|
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|
1215 } |
|
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1216 |
| 501 | 1217 table = ngx_array_push(&mcf->tables); |
| 1218 if (table == NULL) { | |
|
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|
1219 return NGX_CONF_ERROR; |
|
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|
1220 } |
|
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|
1221 |
|
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|
1222 table->src = src; |
|
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1223 table->dst = dst; |
|
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|
1224 |
|
1107
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
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parents:
797
diff
changeset
|
1225 if (ngx_strcasecmp(value[2].data, (u_char *) "utf-8") == 0) { |
| 657 | 1226 table->src2dst = ngx_pcalloc(cf->pool, 256 * NGX_UTF_LEN); |
| 1227 if (table->src2dst == NULL) { | |
| 1228 return NGX_CONF_ERROR; | |
| 1229 } | |
| 1230 | |
| 1231 table->dst2src = ngx_pcalloc(cf->pool, 256 * sizeof(void *)); | |
| 1232 if (table->dst2src == NULL) { | |
| 1233 return NGX_CONF_ERROR; | |
| 1234 } | |
| 1235 | |
| 1236 dst2src = ngx_pcalloc(cf->pool, 256); | |
| 1237 if (dst2src == NULL) { | |
| 1238 return NGX_CONF_ERROR; | |
| 1239 } | |
| 1240 | |
| 1241 pp = (u_char **) &table->dst2src[0]; | |
| 1242 pp[0] = dst2src; | |
| 1243 | |
| 1244 for (i = 0; i < 128; i++) { | |
| 1245 p = &table->src2dst[i * NGX_UTF_LEN]; | |
| 1246 p[0] = '\1'; | |
| 1247 p[1] = (u_char) i; | |
| 1248 dst2src[i] = (u_char) i; | |
| 1249 } | |
|
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|
1250 |
| 657 | 1251 for (/* void */; i < 256; i++) { |
| 1252 p = &table->src2dst[i * NGX_UTF_LEN]; | |
| 1253 p[0] = '\1'; | |
| 1254 p[1] = '?'; | |
| 1255 } | |
| 1256 | |
| 1257 } else { | |
| 1258 table->src2dst = ngx_palloc(cf->pool, 256); | |
| 1259 if (table->src2dst == NULL) { | |
| 1260 return NGX_CONF_ERROR; | |
| 1261 } | |
| 1262 | |
| 1263 table->dst2src = ngx_palloc(cf->pool, 256); | |
| 1264 if (table->dst2src == NULL) { | |
| 1265 return NGX_CONF_ERROR; | |
| 1266 } | |
| 1267 | |
| 1268 for (i = 0; i < 128; i++) { | |
| 1269 table->src2dst[i] = (u_char) i; | |
| 1270 table->dst2src[i] = (u_char) i; | |
| 1271 } | |
| 1272 | |
| 1273 for (/* void */; i < 256; i++) { | |
| 1274 table->src2dst[i] = '?'; | |
| 1275 table->dst2src[i] = '?'; | |
| 1276 } | |
|
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|
1277 } |
|
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|
1278 |
| 657 | 1279 charset = mcf->charsets.elts; |
|
339
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|
1280 |
| 657 | 1281 ctx.table = table; |
| 1282 ctx.charset = &charset[dst]; | |
| 1283 ctx.characters = 0; | |
|
339
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|
1284 |
|
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|
1285 pvcf = *cf; |
| 657 | 1286 cf->ctx = &ctx; |
| 1287 cf->handler = ngx_http_charset_map; | |
|
338
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|
1288 cf->handler_conf = conf; |
| 501 | 1289 |
|
338
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|
1290 rv = ngx_conf_parse(cf, NULL); |
| 501 | 1291 |
|
339
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|
1292 *cf = pvcf; |
|
338
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|
1293 |
| 657 | 1294 if (ctx.characters) { |
| 1295 n = ctx.charset->length; | |
| 1296 ctx.charset->length /= ctx.characters; | |
| 1297 | |
| 1298 if (((n * 10) / ctx.characters) % 10 > 4) { | |
| 1299 ctx.charset->length++; | |
| 1300 } | |
| 1301 } | |
| 1302 | |
|
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|
1303 return rv; |
|
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|
1304 } |
|
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|
1305 |
|
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|
1306 |
| 501 | 1307 static char * |
| 657 | 1308 ngx_http_charset_map(ngx_conf_t *cf, ngx_command_t *dummy, void *conf) |
|
338
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|
1309 { |
| 657 | 1310 u_char *p, *dst2src, **pp; |
| 1311 uint32_t n; | |
| 1312 ngx_int_t src, dst; | |
| 1313 ngx_str_t *value; | |
| 1314 ngx_uint_t i; | |
| 1315 ngx_http_charset_tables_t *table; | |
| 1316 ngx_http_charset_conf_ctx_t *ctx; | |
|
338
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|
1317 |
|
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|
1318 if (cf->args->nelts != 2) { |
|
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|
1319 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, "invalid parameters number"); |
|
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|
1320 return NGX_CONF_ERROR; |
|
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|
1321 } |
|
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|
1322 |
|
339
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|
1323 value = cf->args->elts; |
|
338
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|
1324 |
|
339
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|
1325 src = ngx_hextoi(value[0].data, value[0].len); |
|
338
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|
1326 if (src == NGX_ERROR || src > 255) { |
|
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|
1327 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
| 461 | 1328 "invalid value \"%V\"", &value[0]); |
|
339
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|
1329 return NGX_CONF_ERROR; |
|
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|
1330 } |
|
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|
1331 |
| 657 | 1332 ctx = cf->ctx; |
| 1333 table = ctx->table; | |
| 1334 | |
| 1335 if (ctx->charset->utf8) { | |
| 1336 p = &table->src2dst[src * NGX_UTF_LEN]; | |
| 1337 | |
| 1338 *p++ = (u_char) (value[1].len / 2); | |
| 1339 | |
| 1340 for (i = 0; i < value[1].len; i += 2) { | |
| 1341 dst = ngx_hextoi(&value[1].data[i], 2); | |
| 1342 if (dst == NGX_ERROR || dst > 255) { | |
| 1343 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 1344 "invalid value \"%V\"", &value[1]); | |
| 1345 return NGX_CONF_ERROR; | |
| 1346 } | |
| 1347 | |
| 1348 *p++ = (u_char) dst; | |
| 1349 } | |
| 1350 | |
| 1351 i /= 2; | |
| 1352 | |
| 1353 ctx->charset->length += i; | |
| 1354 ctx->characters++; | |
| 1355 | |
| 1356 p = &table->src2dst[src * NGX_UTF_LEN] + 1; | |
| 1357 | |
|
2125
8e4b9d2acde8
rename ngx_utf_...() to ngx_utf8_...()
Igor Sysoev <igor@sysoev.ru>
parents:
2050
diff
changeset
|
1358 n = ngx_utf8_decode(&p, i); |
| 657 | 1359 |
| 1360 if (n > 0xffff) { | |
| 1361 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 1362 "invalid value \"%V\"", &value[1]); | |
| 1363 return NGX_CONF_ERROR; | |
| 1364 } | |
| 1365 | |
| 1366 pp = (u_char **) &table->dst2src[0]; | |
| 1367 | |
| 1368 dst2src = pp[n >> 8]; | |
| 1369 | |
| 1370 if (dst2src == NULL) { | |
| 1371 dst2src = ngx_pcalloc(cf->pool, 256); | |
| 1372 if (dst2src == NULL) { | |
| 1373 return NGX_CONF_ERROR; | |
| 1374 } | |
| 1375 | |
| 1376 pp[n >> 8] = dst2src; | |
| 1377 } | |
| 1378 | |
| 1379 dst2src[n & 0xff] = (u_char) src; | |
| 1380 | |
| 1381 } else { | |
| 1382 dst = ngx_hextoi(value[1].data, value[1].len); | |
| 1383 if (dst == NGX_ERROR || dst > 255) { | |
| 1384 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 1385 "invalid value \"%V\"", &value[1]); | |
| 1386 return NGX_CONF_ERROR; | |
| 1387 } | |
| 1388 | |
| 1389 table->src2dst[src] = (u_char) dst; | |
| 1390 table->dst2src[dst] = (u_char) src; | |
|
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1391 } |
|
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
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parents:
307
diff
changeset
|
1392 |
|
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1393 return NGX_CONF_OK; |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1394 } |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1395 |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1396 |
| 501 | 1397 static char * |
| 1398 ngx_http_set_charset_slot(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
|
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1399 { |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
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parents:
338
diff
changeset
|
1400 char *p = conf; |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1401 |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1402 ngx_int_t *cp; |
|
752
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1403 ngx_str_t *value, var; |
|
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1404 ngx_http_charset_main_conf_t *mcf; |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1405 |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1406 cp = (ngx_int_t *) (p + cmd->offset); |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1407 |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1408 if (*cp != NGX_CONF_UNSET) { |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1409 return "is duplicate"; |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1410 } |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1411 |
| 529 | 1412 value = cf->args->elts; |
| 1413 | |
| 1414 if (cmd->offset == offsetof(ngx_http_charset_loc_conf_t, charset) | |
| 1415 && ngx_strcmp(value[1].data, "off") == 0) | |
| 1416 { | |
|
2889
0bb8c54f4c45
refactor ngx_http_charset_header_filter()
Igor Sysoev <igor@sysoev.ru>
parents:
2877
diff
changeset
|
1417 *cp = NGX_HTTP_CHARSET_OFF; |
| 529 | 1418 return NGX_CONF_OK; |
| 1419 } | |
| 1420 | |
|
752
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1421 |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1422 if (value[1].data[0] == '$') { |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1423 var.len = value[1].len - 1; |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1424 var.data = value[1].data + 1; |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1425 |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1426 *cp = ngx_http_get_variable_index(cf, &var); |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1427 |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1428 if (*cp == NGX_ERROR) { |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1429 return NGX_CONF_ERROR; |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1430 } |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1431 |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1432 *cp += NGX_HTTP_CHARSET_VAR; |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1433 |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1434 return NGX_CONF_OK; |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1435 } |
|
907361d07f25
ngx_http_charset_module supports the variables
Igor Sysoev <igor@sysoev.ru>
parents:
681
diff
changeset
|
1436 |
|
396
6f3b20c1ac50
nginx-0.0.7-2004-07-18-23:11:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
389
diff
changeset
|
1437 mcf = ngx_http_conf_get_module_main_conf(cf, |
|
6f3b20c1ac50
nginx-0.0.7-2004-07-18-23:11:20 import
Igor Sysoev <igor@sysoev.ru>
parents:
389
diff
changeset
|
1438 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
|
1439 |
|
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1440 *cp = ngx_http_add_charset(&mcf->charsets, &value[1]); |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1441 if (*cp == NGX_ERROR) { |
|
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1442 return NGX_CONF_ERROR; |
|
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1443 } |
|
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1444 |
|
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1445 return NGX_CONF_OK; |
|
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1446 } |
|
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1447 |
|
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1448 |
| 501 | 1449 static ngx_int_t |
| 1450 ngx_http_add_charset(ngx_array_t *charsets, ngx_str_t *name) | |
|
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1451 { |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1452 ngx_uint_t i; |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1453 ngx_http_charset_t *c; |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1454 |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1455 c = charsets->elts; |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1456 for (i = 0; i < charsets->nelts; i++) { |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1457 if (name->len != c[i].name.len) { |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1458 continue; |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1459 } |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1460 |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1461 if (ngx_strcasecmp(name->data, c[i].name.data) == 0) { |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1462 break; |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1463 } |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1464 } |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1465 |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1466 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
|
1467 return i; |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1468 } |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1469 |
| 501 | 1470 c = ngx_array_push(charsets); |
| 1471 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
|
1472 return NGX_ERROR; |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1473 } |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1474 |
| 455 | 1475 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
|
1476 c->name = *name; |
| 657 | 1477 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
|
1478 |
|
1107
db7c468c447d
ngx_strcasecmp()/ngx_strncasecmp()
Igor Sysoev <igor@sysoev.ru>
parents:
797
diff
changeset
|
1479 if (ngx_strcasecmp(name->data, (u_char *) "utf-8") == 0) { |
| 523 | 1480 c->utf8 = 1; |
| 667 | 1481 |
| 1482 } else { | |
| 1483 c->utf8 = 0; | |
| 523 | 1484 } |
| 1485 | |
|
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1486 return i; |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1487 } |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1488 |
|
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1489 |
| 501 | 1490 static void * |
| 1491 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
|
1492 { |
|
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1493 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
|
1494 |
| 501 | 1495 mcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_charset_main_conf_t)); |
| 1496 if (mcf == NULL) { | |
|
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
parents:
2891
diff
changeset
|
1497 return NULL; |
|
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1498 } |
|
338
0376cffa29e6
nginx-0.0.3-2004-05-20-21:33:52 import
Igor Sysoev <igor@sysoev.ru>
parents:
307
diff
changeset
|
1499 |
| 501 | 1500 if (ngx_array_init(&mcf->charsets, cf->pool, 2, sizeof(ngx_http_charset_t)) |
|
2536
a6d6d762c554
small optimization: " == NGX_ERROR" > " != NGX_OK"
Igor Sysoev <igor@sysoev.ru>
parents:
2414
diff
changeset
|
1501 != NGX_OK) |
| 501 | 1502 { |
|
2912
c7d57b539248
return NULL instead of NGX_CONF_ERROR on a create conf failure
Igor Sysoev <igor@sysoev.ru>
parents:
2891
diff
changeset
|
1503 return NULL; |
| 501 | 1504 } |
|
339
8c5b69141dfd
nginx-0.0.3-2004-05-21-20:12:13 import
Igor Sysoev <igor@sysoev.ru>
parents:
338
diff
changeset
|
1505 |
| 529 | 1506 if (ngx_array_init(&mcf->tables, cf->pool, 1, |
|
2536
a6d6d762c554
small optimization: " == NGX_ERROR" > " != NGX_OK"
Igor Sysoev <igor@sysoev.ru>
parents:
2414
diff
changeset
|
1507 sizeof(ngx_http_charset_tables_t)) |
|
a6d6d762c554
small optimization: " == NGX_ERROR" > " != NGX_OK"
Igor Sysoev <igor@sysoev.ru>
parents:
2414
diff
changeset
|
1508 != NGX_OK) |
| 501 | 1509 { |
|
2912
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1510 return NULL; |
| 501 | 1511 } |
|
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1512 |
| 529 | 1513 if (ngx_array_init(&mcf->recodes, cf->pool, 2, |
|
2536
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2414
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|
1514 sizeof(ngx_http_charset_recode_t)) |
|
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small optimization: " == NGX_ERROR" > " != NGX_OK"
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|
1515 != NGX_OK) |
| 529 | 1516 { |
|
2912
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|
1517 return NULL; |
| 529 | 1518 } |
| 1519 | |
|
338
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1520 return mcf; |
|
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|
1521 } |
|
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|
1522 |
|
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1523 |
| 501 | 1524 static void * |
| 1525 ngx_http_charset_create_loc_conf(ngx_conf_t *cf) | |
|
99
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|
1526 { |
|
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parents:
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changeset
|
1527 ngx_http_charset_loc_conf_t *lcf; |
|
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1528 |
| 501 | 1529 lcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_charset_loc_conf_t)); |
| 1530 if (lcf == NULL) { | |
|
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|
1531 return NULL; |
|
339
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|
1532 } |
|
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|
1533 |
| 2167 | 1534 /* |
| 1535 * set by ngx_pcalloc(): | |
| 1536 * | |
| 1537 * lcf->types = { NULL }; | |
| 1538 * lcf->types_keys = NULL; | |
| 1539 */ | |
| 1540 | |
| 529 | 1541 lcf->charset = NGX_CONF_UNSET; |
|
339
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1542 lcf->source_charset = NGX_CONF_UNSET; |
| 635 | 1543 lcf->override_charset = NGX_CONF_UNSET; |
|
99
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|
1544 |
|
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diff
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|
1545 return lcf; |
|
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diff
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|
1546 } |
|
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|
1547 |
|
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diff
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1548 |
| 501 | 1549 static char * |
| 1550 ngx_http_charset_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
|
99
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|
1551 { |
|
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parents:
diff
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|
1552 ngx_http_charset_loc_conf_t *prev = parent; |
|
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|
1553 ngx_http_charset_loc_conf_t *conf = child; |
|
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|
1554 |
| 529 | 1555 ngx_uint_t i; |
| 1556 ngx_http_charset_recode_t *recode; | |
| 1557 ngx_http_charset_main_conf_t *mcf; | |
| 477 | 1558 |
|
3372
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|
1559 if (ngx_http_merge_types(cf, &conf->types_keys, &conf->types, |
|
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|
1560 &prev->types_keys, &prev->types, |
|
2175
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Igor Sysoev <igor@sysoev.ru>
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diff
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|
1561 ngx_http_charset_default_types) |
|
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1562 != NGX_OK) |
|
a69886fc2864
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diff
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|
1563 { |
|
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diff
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|
1564 return NGX_CONF_ERROR; |
|
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diff
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|
1565 } |
|
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diff
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|
1566 |
| 635 | 1567 ngx_conf_merge_value(conf->override_charset, prev->override_charset, 0); |
|
2889
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diff
changeset
|
1568 ngx_conf_merge_value(conf->charset, prev->charset, NGX_HTTP_CHARSET_OFF); |
|
0bb8c54f4c45
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Igor Sysoev <igor@sysoev.ru>
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diff
changeset
|
1569 ngx_conf_merge_value(conf->source_charset, prev->source_charset, |
|
0bb8c54f4c45
refactor ngx_http_charset_header_filter()
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parents:
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diff
changeset
|
1570 NGX_HTTP_CHARSET_OFF); |
| 477 | 1571 |
|
2889
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Igor Sysoev <igor@sysoev.ru>
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2877
diff
changeset
|
1572 if (conf->charset == NGX_HTTP_CHARSET_OFF |
|
0bb8c54f4c45
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|
1573 || conf->source_charset == NGX_HTTP_CHARSET_OFF |
| 529 | 1574 || conf->charset == conf->source_charset) |
| 477 | 1575 { |
| 529 | 1576 return NGX_CONF_OK; |
| 477 | 1577 } |
| 1578 | |
| 1590 | 1579 if (conf->source_charset >= NGX_HTTP_CHARSET_VAR |
| 1580 || conf->charset >= NGX_HTTP_CHARSET_VAR) | |
| 1581 { | |
| 1582 return NGX_CONF_OK; | |
| 1583 } | |
| 1584 | |
| 529 | 1585 mcf = ngx_http_conf_get_module_main_conf(cf, |
| 1586 ngx_http_charset_filter_module); | |
| 1587 recode = mcf->recodes.elts; | |
| 1588 for (i = 0; i < mcf->recodes.nelts; i++) { | |
| 1589 if (conf->source_charset == recode[i].src | |
| 1590 && conf->charset == recode[i].dst) | |
| 1591 { | |
| 1592 return NGX_CONF_OK; | |
| 1593 } | |
| 477 | 1594 } |
| 1595 | |
| 529 | 1596 recode = ngx_array_push(&mcf->recodes); |
| 1597 if (recode == NULL) { | |
| 477 | 1598 return NGX_CONF_ERROR; |
| 1599 } | |
|
340
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diff
changeset
|
1600 |
| 529 | 1601 recode->src = conf->source_charset; |
| 1602 recode->dst = conf->charset; | |
| 1603 | |
|
99
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parents:
diff
changeset
|
1604 return NGX_CONF_OK; |
|
a059e1aa65d4
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parents:
diff
changeset
|
1605 } |
| 529 | 1606 |
| 1607 | |
| 1608 static ngx_int_t | |
| 1609 ngx_http_charset_postconfiguration(ngx_conf_t *cf) | |
| 1610 { | |
| 635 | 1611 u_char **src, **dst; |
| 529 | 1612 ngx_int_t c; |
| 1613 ngx_uint_t i, t; | |
| 1614 ngx_http_charset_t *charset; | |
| 1615 ngx_http_charset_recode_t *recode; | |
| 1616 ngx_http_charset_tables_t *tables; | |
| 1617 ngx_http_charset_main_conf_t *mcf; | |
| 1618 | |
| 1619 mcf = ngx_http_conf_get_module_main_conf(cf, | |
| 1620 ngx_http_charset_filter_module); | |
| 1621 | |
| 1622 recode = mcf->recodes.elts; | |
| 1623 tables = mcf->tables.elts; | |
| 1624 charset = mcf->charsets.elts; | |
| 1625 | |
| 1626 for (i = 0; i < mcf->recodes.nelts; i++) { | |
| 1627 | |
| 1628 c = recode[i].src; | |
| 1629 | |
| 1630 for (t = 0; t < mcf->tables.nelts; t++) { | |
| 1631 | |
| 1632 if (c == tables[t].src && recode[i].dst == tables[t].dst) { | |
| 1633 goto next; | |
| 1634 } | |
| 1635 | |
| 1636 if (c == tables[t].dst && recode[i].dst == tables[t].src) { | |
| 1637 goto next; | |
| 1638 } | |
| 1639 } | |
| 1640 | |
| 1641 ngx_log_error(NGX_LOG_EMERG, cf->log, 0, | |
| 1588 | 1642 "no \"charset_map\" between the charsets \"%V\" and \"%V\"", |
| 1643 &charset[c].name, &charset[recode[i].dst].name); | |
| 529 | 1644 return NGX_ERROR; |
| 1645 | |
| 1646 next: | |
| 1647 continue; | |
| 1648 } | |
| 1649 | |
| 635 | 1650 |
| 1651 for (t = 0; t < mcf->tables.nelts; t++) { | |
| 1652 | |
| 1653 src = charset[tables[t].src].tables; | |
| 1654 | |
| 1655 if (src == NULL) { | |
| 1656 src = ngx_pcalloc(cf->pool, sizeof(u_char *) * mcf->charsets.nelts); | |
| 1657 if (src == NULL) { | |
| 1658 return NGX_ERROR; | |
| 1659 } | |
| 1660 | |
| 1661 charset[tables[t].src].tables = src; | |
| 1662 } | |
| 1663 | |
| 1664 dst = charset[tables[t].dst].tables; | |
| 1665 | |
| 1666 if (dst == NULL) { | |
| 1667 dst = ngx_pcalloc(cf->pool, sizeof(u_char *) * mcf->charsets.nelts); | |
| 1668 if (dst == NULL) { | |
| 1669 return NGX_ERROR; | |
| 1670 } | |
| 1671 | |
| 1672 charset[tables[t].dst].tables = dst; | |
| 1673 } | |
| 1674 | |
| 1675 src[tables[t].dst] = tables[t].src2dst; | |
| 1676 dst[tables[t].src] = tables[t].dst2src; | |
| 1677 } | |
| 1678 | |
| 681 | 1679 ngx_http_next_header_filter = ngx_http_top_header_filter; |
| 1680 ngx_http_top_header_filter = ngx_http_charset_header_filter; | |
| 1681 | |
| 1682 ngx_http_next_body_filter = ngx_http_top_body_filter; | |
| 1683 ngx_http_top_body_filter = ngx_http_charset_body_filter; | |
| 1684 | |
| 529 | 1685 return NGX_OK; |
| 1686 } |