Mercurial > hg > nginx
annotate src/http/modules/ngx_http_rewrite_module.c @ 4208:470462cfa31b
Skipping location rewrite phase for server null location.
author | Igor Sysoev <igor@sysoev.ru> |
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date | Thu, 13 Oct 2011 12:43:22 +0000 |
parents | 7f64de1cc2c0 |
children | d620f497c50f |
rev | line source |
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1 |
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2 /* |
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3 * Copyright (C) Igor Sysoev |
441
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4 */ |
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7 #include <ngx_config.h> |
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8 #include <ngx_core.h> |
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9 #include <ngx_http.h> |
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11 |
485 | 12 typedef struct { |
577 | 13 ngx_array_t *codes; /* uintptr_t */ |
485 | 14 |
577 | 15 ngx_uint_t stack_size; |
485 | 16 |
577 | 17 ngx_flag_t log; |
635 | 18 ngx_flag_t uninitialized_variable_warn; |
485 | 19 } ngx_http_rewrite_loc_conf_t; |
216
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20 |
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21 |
485 | 22 static void *ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf); |
23 static char *ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, | |
487 | 24 void *parent, void *child); |
681 | 25 static ngx_int_t ngx_http_rewrite_init(ngx_conf_t *cf); |
485 | 26 static char *ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); |
27 static char *ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, | |
487 | 28 void *conf); |
527 | 29 static char *ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd, |
30 void *conf); | |
485 | 31 static char *ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, |
487 | 32 void *conf); |
501 | 33 static char * ngx_http_rewrite_if_condition(ngx_conf_t *cf, |
34 ngx_http_rewrite_loc_conf_t *lcf); | |
35 static char *ngx_http_rewrite_variable(ngx_conf_t *cf, | |
36 ngx_http_rewrite_loc_conf_t *lcf, ngx_str_t *value); | |
509 | 37 static char *ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, |
501 | 38 void *conf); |
577 | 39 static char * ngx_http_rewrite_value(ngx_conf_t *cf, |
40 ngx_http_rewrite_loc_conf_t *lcf, ngx_str_t *value); | |
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41 |
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43 static ngx_command_t ngx_http_rewrite_commands[] = { |
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44 |
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45 { ngx_string("rewrite"), |
485 | 46 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF |
47 |NGX_CONF_TAKE23, | |
48 ngx_http_rewrite, | |
49 NGX_HTTP_LOC_CONF_OFFSET, | |
50 0, | |
51 NULL }, | |
52 | |
53 { ngx_string("return"), | |
54 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
3633 | 55 |NGX_CONF_TAKE12, |
485 | 56 ngx_http_rewrite_return, |
57 NGX_HTTP_LOC_CONF_OFFSET, | |
216
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58 0, |
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59 NULL }, |
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60 |
527 | 61 { ngx_string("break"), |
62 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
63 |NGX_CONF_NOARGS, | |
64 ngx_http_rewrite_break, | |
65 NGX_HTTP_LOC_CONF_OFFSET, | |
66 0, | |
67 NULL }, | |
68 | |
485 | 69 { ngx_string("if"), |
70 NGX_HTTP_SRV_CONF|NGX_HTTP_LOC_CONF|NGX_CONF_BLOCK|NGX_CONF_1MORE, | |
71 ngx_http_rewrite_if, | |
437
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72 NGX_HTTP_LOC_CONF_OFFSET, |
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73 0, |
485 | 74 NULL }, |
75 | |
501 | 76 { ngx_string("set"), |
77 NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF|NGX_HTTP_LIF_CONF | |
78 |NGX_CONF_TAKE2, | |
79 ngx_http_rewrite_set, | |
80 NGX_HTTP_LOC_CONF_OFFSET, | |
81 0, | |
82 NULL }, | |
83 | |
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84 { ngx_string("rewrite_log"), |
635 | 85 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF |
86 |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG, | |
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87 ngx_conf_set_flag_slot, |
485 | 88 NGX_HTTP_LOC_CONF_OFFSET, |
89 offsetof(ngx_http_rewrite_loc_conf_t, log), | |
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90 NULL }, |
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91 |
635 | 92 { ngx_string("uninitialized_variable_warn"), |
93 NGX_HTTP_MAIN_CONF|NGX_HTTP_SRV_CONF|NGX_HTTP_SIF_CONF|NGX_HTTP_LOC_CONF | |
94 |NGX_HTTP_LIF_CONF|NGX_CONF_FLAG, | |
95 ngx_conf_set_flag_slot, | |
96 NGX_HTTP_LOC_CONF_OFFSET, | |
97 offsetof(ngx_http_rewrite_loc_conf_t, uninitialized_variable_warn), | |
98 NULL }, | |
99 | |
216
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100 ngx_null_command |
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101 }; |
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102 |
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103 |
667 | 104 static ngx_http_module_t ngx_http_rewrite_module_ctx = { |
509 | 105 NULL, /* preconfiguration */ |
681 | 106 ngx_http_rewrite_init, /* postconfiguration */ |
216
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107 |
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108 NULL, /* create main configuration */ |
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109 NULL, /* init main configuration */ |
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110 |
485 | 111 NULL, /* create server configuration */ |
112 NULL, /* merge server configuration */ | |
216
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113 |
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114 ngx_http_rewrite_create_loc_conf, /* create location configration */ |
485 | 115 ngx_http_rewrite_merge_loc_conf /* merge location configration */ |
216
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116 }; |
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117 |
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118 |
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119 ngx_module_t ngx_http_rewrite_module = { |
509 | 120 NGX_MODULE_V1, |
577 | 121 &ngx_http_rewrite_module_ctx, /* module context */ |
216
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122 ngx_http_rewrite_commands, /* module directives */ |
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123 NGX_HTTP_MODULE, /* module type */ |
541 | 124 NULL, /* init master */ |
681 | 125 NULL, /* init module */ |
541 | 126 NULL, /* init process */ |
127 NULL, /* init thread */ | |
128 NULL, /* exit thread */ | |
129 NULL, /* exit process */ | |
130 NULL, /* exit master */ | |
131 NGX_MODULE_V1_PADDING | |
216
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132 }; |
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133 |
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134 |
487 | 135 static ngx_int_t |
136 ngx_http_rewrite_handler(ngx_http_request_t *r) | |
216
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137 { |
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138 ngx_int_t index; |
509 | 139 ngx_http_script_code_pt code; |
140 ngx_http_script_engine_t *e; | |
4208
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141 ngx_http_core_srv_conf_t *cscf; |
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142 ngx_http_core_main_conf_t *cmcf; |
635 | 143 ngx_http_rewrite_loc_conf_t *rlcf; |
216
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144 |
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145 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); |
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146 cscf = ngx_http_get_module_srv_conf(r, ngx_http_core_module); |
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147 index = cmcf->phase_engine.location_rewrite_index; |
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148 |
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149 if (r->phase_handler == index && r->loc_conf == cscf->ctx->loc_conf) { |
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150 /* skipping location rewrite phase for server null location */ |
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151 return NGX_DECLINED; |
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152 } |
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153 |
635 | 154 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); |
216
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155 |
635 | 156 if (rlcf->codes == NULL) { |
485 | 157 return NGX_DECLINED; |
158 } | |
216
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159 |
509 | 160 e = ngx_pcalloc(r->pool, sizeof(ngx_http_script_engine_t)); |
501 | 161 if (e == NULL) { |
485 | 162 return NGX_HTTP_INTERNAL_SERVER_ERROR; |
163 } | |
216
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164 |
509 | 165 e->sp = ngx_pcalloc(r->pool, |
635 | 166 rlcf->stack_size * sizeof(ngx_http_variable_value_t)); |
485 | 167 if (e->sp == NULL) { |
168 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
169 } | |
326
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170 |
635 | 171 e->ip = rlcf->codes->elts; |
509 | 172 e->request = r; |
485 | 173 e->quote = 1; |
635 | 174 e->log = rlcf->log; |
485 | 175 e->status = NGX_DECLINED; |
176 | |
177 while (*(uintptr_t *) e->ip) { | |
509 | 178 code = *(ngx_http_script_code_pt *) e->ip; |
485 | 179 code(e); |
180 } | |
181 | |
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182 if (e->status < NGX_HTTP_BAD_REQUEST) { |
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183 return e->status; |
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184 } |
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185 |
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186 if (r->err_status == 0) { |
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187 return e->status; |
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188 } |
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189 |
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190 return r->err_status; |
485 | 191 } |
192 | |
193 | |
573 | 194 static ngx_int_t |
195 ngx_http_rewrite_var(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
196 uintptr_t data) | |
501 | 197 { |
635 | 198 ngx_http_variable_t *var; |
199 ngx_http_core_main_conf_t *cmcf; | |
200 ngx_http_rewrite_loc_conf_t *rlcf; | |
201 | |
202 rlcf = ngx_http_get_module_loc_conf(r, ngx_http_rewrite_module); | |
203 | |
204 if (rlcf->uninitialized_variable_warn == 0) { | |
205 *v = ngx_http_variable_null_value; | |
206 return NGX_OK; | |
207 } | |
501 | 208 |
209 cmcf = ngx_http_get_module_main_conf(r, ngx_http_core_module); | |
210 | |
211 var = cmcf->variables.elts; | |
212 | |
213 /* | |
214 * the ngx_http_rewrite_module sets variables directly in r->variables, | |
519 | 215 * and they should be handled by ngx_http_get_indexed_variable(), |
501 | 216 * so the handler is called only if the variable is not initialized |
217 */ | |
218 | |
635 | 219 ngx_log_error(NGX_LOG_WARN, r->connection->log, 0, |
501 | 220 "using uninitialized \"%V\" variable", &var[data].name); |
221 | |
577 | 222 *v = ngx_http_variable_null_value; |
573 | 223 |
224 return NGX_OK; | |
501 | 225 } |
226 | |
227 | |
487 | 228 static void * |
229 ngx_http_rewrite_create_loc_conf(ngx_conf_t *cf) | |
437
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230 { |
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231 ngx_http_rewrite_loc_conf_t *conf; |
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232 |
501 | 233 conf = ngx_pcalloc(cf->pool, sizeof(ngx_http_rewrite_loc_conf_t)); |
234 if (conf == NULL) { | |
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235 return NULL; |
437
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236 } |
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237 |
485 | 238 conf->stack_size = NGX_CONF_UNSET_UINT; |
239 conf->log = NGX_CONF_UNSET; | |
635 | 240 conf->uninitialized_variable_warn = NGX_CONF_UNSET; |
485 | 241 |
437
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242 return conf; |
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243 } |
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244 |
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245 |
487 | 246 static char * |
247 ngx_http_rewrite_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
216
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248 { |
485 | 249 ngx_http_rewrite_loc_conf_t *prev = parent; |
250 ngx_http_rewrite_loc_conf_t *conf = child; | |
251 | |
509 | 252 uintptr_t *code; |
485 | 253 |
254 ngx_conf_merge_value(conf->log, prev->log, 0); | |
635 | 255 ngx_conf_merge_value(conf->uninitialized_variable_warn, |
256 prev->uninitialized_variable_warn, 1); | |
663 | 257 ngx_conf_merge_uint_value(conf->stack_size, prev->stack_size, 10); |
485 | 258 |
259 if (conf->codes == NULL) { | |
260 return NGX_CONF_OK; | |
261 } | |
262 | |
263 if (conf->codes == prev->codes) { | |
264 return NGX_CONF_OK; | |
265 } | |
266 | |
501 | 267 code = ngx_array_push_n(conf->codes, sizeof(uintptr_t)); |
268 if (code == NULL) { | |
216
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269 return NGX_CONF_ERROR; |
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270 } |
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271 |
485 | 272 *code = (uintptr_t) NULL; |
273 | |
274 return NGX_CONF_OK; | |
275 } | |
276 | |
216
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277 |
509 | 278 static ngx_int_t |
681 | 279 ngx_http_rewrite_init(ngx_conf_t *cf) |
577 | 280 { |
509 | 281 ngx_http_handler_pt *h; |
282 ngx_http_core_main_conf_t *cmcf; | |
283 | |
681 | 284 cmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_core_module); |
509 | 285 |
573 | 286 h = ngx_array_push(&cmcf->phases[NGX_HTTP_SERVER_REWRITE_PHASE].handlers); |
287 if (h == NULL) { | |
288 return NGX_ERROR; | |
289 } | |
290 | |
291 *h = ngx_http_rewrite_handler; | |
292 | |
509 | 293 h = ngx_array_push(&cmcf->phases[NGX_HTTP_REWRITE_PHASE].handlers); |
294 if (h == NULL) { | |
295 return NGX_ERROR; | |
296 } | |
297 | |
298 *h = ngx_http_rewrite_handler; | |
299 | |
300 return NGX_OK; | |
577 | 301 } |
509 | 302 |
303 | |
487 | 304 static char * |
305 ngx_http_rewrite(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
485 | 306 { |
577 | 307 ngx_http_rewrite_loc_conf_t *lcf = conf; |
308 | |
3325 | 309 ngx_str_t *value; |
509 | 310 ngx_uint_t last; |
3325 | 311 ngx_regex_compile_t rc; |
509 | 312 ngx_http_script_code_pt *code; |
313 ngx_http_script_compile_t sc; | |
314 ngx_http_script_regex_code_t *regex; | |
315 ngx_http_script_regex_end_code_t *regex_end; | |
316 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
485 | 317 |
509 | 318 regex = ngx_http_script_start_code(cf->pool, &lcf->codes, |
319 sizeof(ngx_http_script_regex_code_t)); | |
485 | 320 if (regex == NULL) { |
321 return NGX_CONF_ERROR; | |
322 } | |
216
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323 |
509 | 324 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); |
325 | |
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326 value = cf->args->elts; |
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327 |
3325 | 328 ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); |
329 | |
330 rc.pattern = value[1]; | |
331 rc.err.len = NGX_MAX_CONF_ERRSTR; | |
332 rc.err.data = errstr; | |
485 | 333 |
334 /* TODO: NGX_REGEX_CASELESS */ | |
335 | |
3325 | 336 regex->regex = ngx_http_regex_compile(cf, &rc); |
485 | 337 if (regex->regex == NULL) { |
338 return NGX_CONF_ERROR; | |
339 } | |
340 | |
509 | 341 regex->code = ngx_http_script_regex_start_code; |
485 | 342 regex->uri = 1; |
343 regex->name = value[1]; | |
216
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344 |
509 | 345 if (value[2].data[value[2].len - 1] == '?') { |
346 | |
347 /* the last "?" drops the original arguments */ | |
348 value[2].len--; | |
349 | |
350 } else { | |
351 regex->add_args = 1; | |
352 } | |
353 | |
485 | 354 last = 0; |
355 | |
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356 if (ngx_strncmp(value[2].data, "http://", sizeof("http://") - 1) == 0 |
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357 || ngx_strncmp(value[2].data, "https://", sizeof("https://") - 1) == 0 |
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358 || ngx_strncmp(value[2].data, "$scheme", sizeof("$scheme") - 1) == 0) |
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359 { |
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360 regex->status = NGX_HTTP_MOVED_TEMPORARILY; |
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361 regex->redirect = 1; |
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362 last = 1; |
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363 } |
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364 |
485 | 365 if (cf->args->nelts == 4) { |
366 if (ngx_strcmp(value[3].data, "last") == 0) { | |
367 last = 1; | |
216
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368 |
487 | 369 } else if (ngx_strcmp(value[3].data, "break") == 0) { |
370 regex->break_cycle = 1; | |
371 last = 1; | |
372 | |
485 | 373 } else if (ngx_strcmp(value[3].data, "redirect") == 0) { |
374 regex->status = NGX_HTTP_MOVED_TEMPORARILY; | |
375 regex->redirect = 1; | |
376 last = 1; | |
326
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377 |
485 | 378 } else if (ngx_strcmp(value[3].data, "permanent") == 0) { |
379 regex->status = NGX_HTTP_MOVED_PERMANENTLY; | |
380 regex->redirect = 1; | |
381 last = 1; | |
326
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382 |
485 | 383 } else { |
326
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384 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
461 | 385 "invalid parameter \"%V\"", &value[3]); |
326
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386 return NGX_CONF_ERROR; |
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387 } |
485 | 388 } |
326
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389 |
509 | 390 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); |
485 | 391 |
509 | 392 sc.cf = cf; |
393 sc.source = &value[2]; | |
394 sc.lengths = ®ex->lengths; | |
395 sc.values = &lcf->codes; | |
396 sc.variables = ngx_http_script_variables_count(&value[2]); | |
397 sc.main = regex; | |
398 sc.complete_lengths = 1; | |
399 sc.compile_args = !regex->redirect; | |
485 | 400 |
509 | 401 if (ngx_http_script_compile(&sc) != NGX_OK) { |
402 return NGX_CONF_ERROR; | |
403 } | |
485 | 404 |
509 | 405 regex = sc.main; |
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406 |
509 | 407 regex->size = sc.size; |
408 regex->args = sc.args; | |
216
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409 |
641 | 410 if (sc.variables == 0 && !sc.dup_capture) { |
509 | 411 regex->lengths = NULL; |
485 | 412 } |
413 | |
509 | 414 regex_end = ngx_http_script_add_code(lcf->codes, |
415 sizeof(ngx_http_script_regex_end_code_t), | |
416 ®ex); | |
485 | 417 if (regex_end == NULL) { |
418 return NGX_CONF_ERROR; | |
419 } | |
420 | |
509 | 421 regex_end->code = ngx_http_script_regex_end_code; |
485 | 422 regex_end->uri = regex->uri; |
423 regex_end->args = regex->args; | |
509 | 424 regex_end->add_args = regex->add_args; |
485 | 425 regex_end->redirect = regex->redirect; |
426 | |
427 if (last) { | |
517 | 428 code = ngx_http_script_add_code(lcf->codes, sizeof(uintptr_t), ®ex); |
485 | 429 if (code == NULL) { |
430 return NGX_CONF_ERROR; | |
218
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431 } |
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432 |
3184 | 433 *code = NULL; |
485 | 434 } |
435 | |
436 regex->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
437 - (u_char *) regex; | |
438 | |
439 return NGX_CONF_OK; | |
440 } | |
441 | |
442 | |
487 | 443 static char * |
444 ngx_http_rewrite_return(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
485 | 445 { |
577 | 446 ngx_http_rewrite_loc_conf_t *lcf = conf; |
216
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447 |
3633 | 448 u_char *p; |
449 ngx_str_t *value, *v; | |
450 ngx_http_script_return_code_t *ret; | |
451 ngx_http_compile_complex_value_t ccv; | |
485 | 452 |
509 | 453 ret = ngx_http_script_start_code(cf->pool, &lcf->codes, |
454 sizeof(ngx_http_script_return_code_t)); | |
485 | 455 if (ret == NULL) { |
456 return NGX_CONF_ERROR; | |
457 } | |
458 | |
459 value = cf->args->elts; | |
460 | |
3633 | 461 ngx_memzero(ret, sizeof(ngx_http_script_return_code_t)); |
462 | |
509 | 463 ret->code = ngx_http_script_return_code; |
485 | 464 |
3633 | 465 p = value[1].data; |
466 | |
467 ret->status = ngx_atoi(p, value[1].len); | |
485 | 468 |
469 if (ret->status == (uintptr_t) NGX_ERROR) { | |
3633 | 470 |
471 if (cf->args->nelts == 2 | |
472 && (ngx_strncmp(p, "http://", sizeof("http://") - 1) == 0 | |
473 || ngx_strncmp(p, "https://", sizeof("https://") - 1) == 0 | |
474 || ngx_strncmp(p, "$scheme", sizeof("$scheme") - 1) == 0)) | |
475 { | |
476 ret->status = NGX_HTTP_MOVED_TEMPORARILY; | |
477 v = &value[1]; | |
478 | |
479 } else { | |
480 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
481 "invalid return code \"%V\"", &value[1]); | |
482 return NGX_CONF_ERROR; | |
483 } | |
484 | |
485 } else { | |
486 | |
487 if (cf->args->nelts == 2) { | |
488 return NGX_CONF_OK; | |
489 } | |
490 | |
491 v = &value[2]; | |
492 } | |
493 | |
494 ngx_memzero(&ccv, sizeof(ngx_http_compile_complex_value_t)); | |
495 | |
496 ccv.cf = cf; | |
497 ccv.value = v; | |
498 ccv.complex_value = &ret->text; | |
499 | |
500 if (ngx_http_compile_complex_value(&ccv) != NGX_OK) { | |
485 | 501 return NGX_CONF_ERROR; |
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502 } |
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503 |
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504 return NGX_CONF_OK; |
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505 } |
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506 |
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507 |
487 | 508 static char * |
527 | 509 ngx_http_rewrite_break(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
510 { | |
511 ngx_http_rewrite_loc_conf_t *lcf = conf; | |
512 | |
513 ngx_http_script_code_pt *code; | |
514 | |
515 code = ngx_http_script_start_code(cf->pool, &lcf->codes, sizeof(uintptr_t)); | |
516 if (code == NULL) { | |
517 return NGX_CONF_ERROR; | |
518 } | |
519 | |
520 *code = ngx_http_script_break_code; | |
521 | |
522 return NGX_CONF_OK; | |
523 } | |
524 | |
525 | |
526 static char * | |
487 | 527 ngx_http_rewrite_if(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) |
437
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528 { |
577 | 529 ngx_http_rewrite_loc_conf_t *lcf = conf; |
485 | 530 |
531 void *mconf; | |
532 char *rv; | |
533 u_char *elts; | |
534 ngx_uint_t i; | |
535 ngx_conf_t save; | |
536 ngx_http_module_t *module; | |
537 ngx_http_conf_ctx_t *ctx, *pctx; | |
2027 | 538 ngx_http_core_loc_conf_t *clcf, *pclcf; |
509 | 539 ngx_http_script_if_code_t *if_code; |
485 | 540 ngx_http_rewrite_loc_conf_t *nlcf; |
541 | |
501 | 542 ctx = ngx_pcalloc(cf->pool, sizeof(ngx_http_conf_ctx_t)); |
543 if (ctx == NULL) { | |
485 | 544 return NGX_CONF_ERROR; |
545 } | |
546 | |
547 pctx = cf->ctx; | |
548 ctx->main_conf = pctx->main_conf; | |
577 | 549 ctx->srv_conf = pctx->srv_conf; |
485 | 550 |
551 ctx->loc_conf = ngx_pcalloc(cf->pool, sizeof(void *) * ngx_http_max_module); | |
552 if (ctx->loc_conf == NULL) { | |
553 return NGX_CONF_ERROR; | |
554 } | |
555 | |
556 for (i = 0; ngx_modules[i]; i++) { | |
557 if (ngx_modules[i]->type != NGX_HTTP_MODULE) { | |
558 continue; | |
559 } | |
560 | |
561 module = ngx_modules[i]->ctx; | |
577 | 562 |
485 | 563 if (module->create_loc_conf) { |
564 | |
501 | 565 mconf = module->create_loc_conf(cf); |
566 if (mconf == NULL) { | |
485 | 567 return NGX_CONF_ERROR; |
568 } | |
569 | |
570 ctx->loc_conf[ngx_modules[i]->ctx_index] = mconf; | |
571 } | |
572 } | |
573 | |
574 pclcf = pctx->loc_conf[ngx_http_core_module.ctx_index]; | |
575 | |
576 clcf = ctx->loc_conf[ngx_http_core_module.ctx_index]; | |
577 clcf->loc_conf = ctx->loc_conf; | |
578 clcf->name = pclcf->name; | |
579 clcf->noname = 1; | |
580 | |
2027 | 581 if (ngx_http_add_location(cf, &pclcf->locations, clcf) != NGX_OK) { |
485 | 582 return NGX_CONF_ERROR; |
583 } | |
584 | |
501 | 585 if (ngx_http_rewrite_if_condition(cf, lcf) != NGX_CONF_OK) { |
485 | 586 return NGX_CONF_ERROR; |
587 } | |
588 | |
509 | 589 if_code = ngx_array_push_n(lcf->codes, sizeof(ngx_http_script_if_code_t)); |
485 | 590 if (if_code == NULL) { |
3001 | 591 return NGX_CONF_ERROR; |
485 | 592 } |
593 | |
509 | 594 if_code->code = ngx_http_script_if_code; |
485 | 595 |
596 elts = lcf->codes->elts; | |
597 | |
598 | |
631 | 599 /* the inner directives must be compiled to the same code array */ |
485 | 600 |
601 nlcf = ctx->loc_conf[ngx_http_rewrite_module.ctx_index]; | |
602 nlcf->codes = lcf->codes; | |
603 | |
604 | |
605 save = *cf; | |
606 cf->ctx = ctx; | |
607 | |
608 if (pclcf->name.len == 0) { | |
609 if_code->loc_conf = NULL; | |
610 cf->cmd_type = NGX_HTTP_SIF_CONF; | |
611 | |
612 } else { | |
613 if_code->loc_conf = ctx->loc_conf; | |
614 cf->cmd_type = NGX_HTTP_LIF_CONF; | |
615 } | |
616 | |
617 rv = ngx_conf_parse(cf, NULL); | |
618 | |
619 *cf = save; | |
620 | |
621 if (rv != NGX_CONF_OK) { | |
622 return rv; | |
623 } | |
624 | |
625 | |
626 if (elts != lcf->codes->elts) { | |
509 | 627 if_code = (ngx_http_script_if_code_t *) |
485 | 628 ((u_char *) if_code + ((u_char *) lcf->codes->elts - elts)); |
629 } | |
630 | |
631 if_code->next = (u_char *) lcf->codes->elts + lcf->codes->nelts | |
632 - (u_char *) if_code; | |
437
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
633 |
555 | 634 /* the code array belong to parent block */ |
635 | |
636 nlcf->codes = NULL; | |
637 | |
437
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
638 return NGX_CONF_OK; |
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
639 } |
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
640 |
470270fa84d2
nginx-0.0.12-2004-09-23-20:39:34 import
Igor Sysoev <igor@sysoev.ru>
parents:
396
diff
changeset
|
641 |
487 | 642 static char * |
501 | 643 ngx_http_rewrite_if_condition(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf) |
644 { | |
631 | 645 u_char *p; |
646 size_t len; | |
3325 | 647 ngx_str_t *value; |
648 ngx_uint_t cur, last; | |
649 ngx_regex_compile_t rc; | |
577 | 650 ngx_http_script_code_pt *code; |
631 | 651 ngx_http_script_file_code_t *fop; |
509 | 652 ngx_http_script_regex_code_t *regex; |
653 u_char errstr[NGX_MAX_CONF_ERRSTR]; | |
501 | 654 |
655 value = cf->args->elts; | |
656 last = cf->args->nelts - 1; | |
657 | |
658 if (value[1].len < 1 || value[1].data[0] != '(') { | |
659 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
660 "invalid condition \"%V\"", &value[1]); | |
661 return NGX_CONF_ERROR; | |
662 } | |
663 | |
664 if (value[1].len == 1) { | |
665 cur = 2; | |
666 | |
667 } else { | |
668 cur = 1; | |
669 value[1].len--; | |
670 value[1].data++; | |
671 } | |
672 | |
673 if (value[last].len < 1 || value[last].data[value[last].len - 1] != ')') { | |
674 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
675 "invalid condition \"%V\"", &value[last]); | |
676 return NGX_CONF_ERROR; | |
677 } | |
678 | |
679 if (value[last].len == 1) { | |
680 last--; | |
681 | |
682 } else { | |
683 value[last].len--; | |
684 value[last].data[value[last].len] = '\0'; | |
685 } | |
686 | |
631 | 687 len = value[cur].len; |
688 p = value[cur].data; | |
689 | |
690 if (len > 1 && p[0] == '$') { | |
501 | 691 |
692 if (cur != last && cur + 2 != last) { | |
693 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
631 | 694 "invalid condition \"%V\"", &value[cur]); |
501 | 695 return NGX_CONF_ERROR; |
696 } | |
697 | |
577 | 698 if (ngx_http_rewrite_variable(cf, lcf, &value[cur]) != NGX_CONF_OK) { |
501 | 699 return NGX_CONF_ERROR; |
700 } | |
701 | |
702 if (cur == last) { | |
703 return NGX_CONF_OK; | |
704 } | |
705 | |
706 cur++; | |
707 | |
631 | 708 len = value[cur].len; |
709 p = value[cur].data; | |
710 | |
711 if (len == 1 && p[0] == '=') { | |
577 | 712 |
713 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { | |
714 return NGX_CONF_ERROR; | |
715 } | |
716 | |
717 code = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
718 sizeof(uintptr_t)); | |
719 if (code == NULL) { | |
720 return NGX_CONF_ERROR; | |
721 } | |
722 | |
723 *code = ngx_http_script_equal_code; | |
724 | |
725 return NGX_CONF_OK; | |
501 | 726 } |
727 | |
631 | 728 if (len == 2 && p[0] == '!' && p[1] == '=') { |
729 | |
577 | 730 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { |
731 return NGX_CONF_ERROR; | |
732 } | |
733 | |
734 code = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
735 sizeof(uintptr_t)); | |
736 if (code == NULL) { | |
737 return NGX_CONF_ERROR; | |
738 } | |
739 | |
740 *code = ngx_http_script_not_equal_code; | |
741 return NGX_CONF_OK; | |
501 | 742 } |
743 | |
631 | 744 if ((len == 1 && p[0] == '~') |
745 || (len == 2 && p[0] == '~' && p[1] == '*') | |
746 || (len == 2 && p[0] == '!' && p[1] == '~') | |
747 || (len == 3 && p[0] == '!' && p[1] == '~' && p[2] == '*')) | |
577 | 748 { |
749 regex = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
750 sizeof(ngx_http_script_regex_code_t)); | |
751 if (regex == NULL) { | |
752 return NGX_CONF_ERROR; | |
753 } | |
509 | 754 |
577 | 755 ngx_memzero(regex, sizeof(ngx_http_script_regex_code_t)); |
756 | |
3325 | 757 ngx_memzero(&rc, sizeof(ngx_regex_compile_t)); |
577 | 758 |
3325 | 759 rc.pattern = value[last]; |
760 rc.options = (p[len - 1] == '*') ? NGX_REGEX_CASELESS : 0; | |
761 rc.err.len = NGX_MAX_CONF_ERRSTR; | |
762 rc.err.data = errstr; | |
501 | 763 |
3325 | 764 regex->regex = ngx_http_regex_compile(cf, &rc); |
577 | 765 if (regex->regex == NULL) { |
766 return NGX_CONF_ERROR; | |
767 } | |
768 | |
769 regex->code = ngx_http_script_regex_start_code; | |
770 regex->next = sizeof(ngx_http_script_regex_code_t); | |
771 regex->test = 1; | |
631 | 772 if (p[0] == '!') { |
773 regex->negative_test = 1; | |
774 } | |
577 | 775 regex->name = value[last]; |
501 | 776 |
577 | 777 return NGX_CONF_OK; |
501 | 778 } |
779 | |
577 | 780 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, |
781 "unexpected \"%V\" in condition", &value[cur]); | |
782 return NGX_CONF_ERROR; | |
631 | 783 |
784 } else if ((len == 2 && p[0] == '-') | |
785 || (len == 3 && p[0] == '!' && p[1] == '-')) | |
786 { | |
787 if (cur + 1 != last) { | |
788 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
789 "invalid condition \"%V\"", &value[cur]); | |
790 return NGX_CONF_ERROR; | |
791 } | |
792 | |
793 value[last].data[value[last].len] = '\0'; | |
794 value[last].len++; | |
795 | |
796 if (ngx_http_rewrite_value(cf, lcf, &value[last]) != NGX_CONF_OK) { | |
797 return NGX_CONF_ERROR; | |
798 } | |
799 | |
800 fop = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
801 sizeof(ngx_http_script_file_code_t)); | |
802 if (fop == NULL) { | |
803 return NGX_CONF_ERROR; | |
804 } | |
805 | |
806 fop->code = ngx_http_script_file_code; | |
807 | |
808 if (p[1] == 'f') { | |
809 fop->op = ngx_http_script_file_plain; | |
810 return NGX_CONF_OK; | |
811 } | |
812 | |
669 | 813 if (p[1] == 'd') { |
814 fop->op = ngx_http_script_file_dir; | |
815 return NGX_CONF_OK; | |
816 } | |
817 | |
818 if (p[1] == 'e') { | |
819 fop->op = ngx_http_script_file_exists; | |
820 return NGX_CONF_OK; | |
821 } | |
822 | |
823 if (p[1] == 'x') { | |
824 fop->op = ngx_http_script_file_exec; | |
825 return NGX_CONF_OK; | |
826 } | |
827 | |
631 | 828 if (p[0] == '!') { |
829 if (p[2] == 'f') { | |
830 fop->op = ngx_http_script_file_not_plain; | |
831 return NGX_CONF_OK; | |
832 } | |
669 | 833 |
834 if (p[2] == 'd') { | |
835 fop->op = ngx_http_script_file_not_dir; | |
836 return NGX_CONF_OK; | |
837 } | |
838 | |
839 if (p[2] == 'e') { | |
840 fop->op = ngx_http_script_file_not_exists; | |
841 return NGX_CONF_OK; | |
842 } | |
843 | |
844 if (p[2] == 'x') { | |
845 fop->op = ngx_http_script_file_not_exec; | |
846 return NGX_CONF_OK; | |
847 } | |
631 | 848 } |
849 | |
850 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
851 "invalid condition \"%V\"", &value[cur]); | |
852 return NGX_CONF_ERROR; | |
501 | 853 } |
854 | |
855 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
856 "invalid condition \"%V\"", &value[cur]); | |
857 | |
858 return NGX_CONF_ERROR; | |
859 } | |
860 | |
861 | |
862 static char * | |
863 ngx_http_rewrite_variable(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
864 ngx_str_t *value) | |
865 { | |
509 | 866 ngx_int_t index; |
867 ngx_http_script_var_code_t *var_code; | |
501 | 868 |
869 value->len--; | |
870 value->data++; | |
871 | |
577 | 872 index = ngx_http_get_variable_index(cf, value); |
501 | 873 |
577 | 874 if (index == NGX_ERROR) { |
875 return NGX_CONF_ERROR; | |
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
876 } |
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
877 |
577 | 878 var_code = ngx_http_script_start_code(cf->pool, &lcf->codes, |
879 sizeof(ngx_http_script_var_code_t)); | |
880 if (var_code == NULL) { | |
881 return NGX_CONF_ERROR; | |
485 | 882 } |
883 | |
577 | 884 var_code->code = ngx_http_script_var_code; |
885 var_code->index = index; | |
485 | 886 |
887 return NGX_CONF_OK; | |
216
f1d0e5f09c1e
nginx-0.0.1-2003-12-25-23:26:58 import
Igor Sysoev <igor@sysoev.ru>
parents:
diff
changeset
|
888 } |
485 | 889 |
890 | |
501 | 891 static char * |
892 ngx_http_rewrite_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
893 { | |
577 | 894 ngx_http_rewrite_loc_conf_t *lcf = conf; |
501 | 895 |
637 | 896 ngx_int_t index; |
897 ngx_str_t *value; | |
898 ngx_http_variable_t *v; | |
899 ngx_http_script_var_code_t *vcode; | |
900 ngx_http_script_var_handler_code_t *vhcode; | |
501 | 901 |
902 value = cf->args->elts; | |
903 | |
904 if (value[1].data[0] != '$') { | |
905 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
906 "invalid variable name \"%V\"", &value[1]); | |
907 return NGX_CONF_ERROR; | |
908 } | |
909 | |
910 value[1].len--; | |
911 value[1].data++; | |
912 | |
1565 | 913 v = ngx_http_add_variable(cf, &value[1], NGX_HTTP_VAR_CHANGEABLE); |
501 | 914 if (v == NULL) { |
915 return NGX_CONF_ERROR; | |
916 } | |
917 | |
509 | 918 index = ngx_http_get_variable_index(cf, &value[1]); |
919 if (index == NGX_ERROR) { | |
920 return NGX_CONF_ERROR; | |
921 } | |
501 | 922 |
1189
5e1a8fe79c4b
allow to "set" $http_, $sent_http_, and $upstream_http_ variables
Igor Sysoev <igor@sysoev.ru>
parents:
739
diff
changeset
|
923 if (v->get_handler == NULL |
1192 | 924 && ngx_strncasecmp(value[1].data, (u_char *) "http_", 5) != 0 |
925 && ngx_strncasecmp(value[1].data, (u_char *) "sent_http_", 10) != 0 | |
926 && ngx_strncasecmp(value[1].data, (u_char *) "upstream_http_", 14) != 0) | |
1189
5e1a8fe79c4b
allow to "set" $http_, $sent_http_, and $upstream_http_ variables
Igor Sysoev <igor@sysoev.ru>
parents:
739
diff
changeset
|
927 { |
637 | 928 v->get_handler = ngx_http_rewrite_var; |
555 | 929 v->data = index; |
930 } | |
509 | 931 |
577 | 932 if (ngx_http_rewrite_value(cf, lcf, &value[2]) != NGX_CONF_OK) { |
933 return NGX_CONF_ERROR; | |
515 | 934 } |
501 | 935 |
637 | 936 if (v->set_handler) { |
937 vhcode = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
938 sizeof(ngx_http_script_var_handler_code_t)); | |
939 if (vhcode == NULL) { | |
940 return NGX_CONF_ERROR; | |
941 } | |
942 | |
943 vhcode->code = ngx_http_script_var_set_handler_code; | |
944 vhcode->handler = v->set_handler; | |
945 vhcode->data = v->data; | |
946 | |
947 return NGX_CONF_OK; | |
948 } | |
949 | |
950 vcode = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
951 sizeof(ngx_http_script_var_code_t)); | |
952 if (vcode == NULL) { | |
501 | 953 return NGX_CONF_ERROR; |
954 } | |
955 | |
637 | 956 vcode->code = ngx_http_script_set_var_code; |
957 vcode->index = (uintptr_t) index; | |
501 | 958 |
959 return NGX_CONF_OK; | |
960 } | |
577 | 961 |
962 | |
963 static char * | |
964 ngx_http_rewrite_value(ngx_conf_t *cf, ngx_http_rewrite_loc_conf_t *lcf, | |
965 ngx_str_t *value) | |
966 { | |
967 ngx_int_t n; | |
968 ngx_http_script_compile_t sc; | |
969 ngx_http_script_value_code_t *val; | |
970 ngx_http_script_complex_value_code_t *complex; | |
971 | |
972 n = ngx_http_script_variables_count(value); | |
973 | |
974 if (n == 0) { | |
975 val = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
976 sizeof(ngx_http_script_value_code_t)); | |
977 if (val == NULL) { | |
978 return NGX_CONF_ERROR; | |
979 } | |
980 | |
981 n = ngx_atoi(value->data, value->len); | |
982 | |
983 if (n == NGX_ERROR) { | |
984 n = 0; | |
985 } | |
986 | |
987 val->code = ngx_http_script_value_code; | |
988 val->value = (uintptr_t) n; | |
989 val->text_len = (uintptr_t) value->len; | |
990 val->text_data = (uintptr_t) value->data; | |
991 | |
992 return NGX_CONF_OK; | |
993 } | |
994 | |
995 complex = ngx_http_script_start_code(cf->pool, &lcf->codes, | |
996 sizeof(ngx_http_script_complex_value_code_t)); | |
997 if (complex == NULL) { | |
998 return NGX_CONF_ERROR; | |
999 } | |
1000 | |
1001 complex->code = ngx_http_script_complex_value_code; | |
1002 complex->lengths = NULL; | |
1003 | |
1004 ngx_memzero(&sc, sizeof(ngx_http_script_compile_t)); | |
1005 | |
1006 sc.cf = cf; | |
1007 sc.source = value; | |
1008 sc.lengths = &complex->lengths; | |
1009 sc.values = &lcf->codes; | |
1010 sc.variables = n; | |
1011 sc.complete_lengths = 1; | |
1012 | |
1013 if (ngx_http_script_compile(&sc) != NGX_OK) { | |
1014 return NGX_CONF_ERROR; | |
1015 } | |
1016 | |
1017 return NGX_CONF_OK; | |
1018 } |