Mercurial > hg > nginx
annotate src/http/modules/perl/ngx_http_perl_module.c @ 873:f92ad15c2db1
fix segfaults in future workers those will use old configuration,
if new configuration failed
| author | Igor Sysoev <igor@sysoev.ru> |
|---|---|
| date | Sun, 26 Nov 2006 15:35:02 +0000 |
| parents | 1c4a5b3f9110 |
| children | 98afa13ea7e5 |
| rev | line source |
|---|---|
| 599 | 1 |
| 2 /* | |
| 3 * Copyright (C) Igor Sysoev | |
| 4 */ | |
| 5 | |
| 6 | |
| 7 #include <ngx_config.h> | |
| 8 #include <ngx_core.h> | |
| 9 #include <ngx_http.h> | |
| 10 #include <ngx_http_perl_module.h> | |
| 11 | |
| 12 | |
| 13 typedef struct { | |
| 14 PerlInterpreter *perl; | |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
15 HV *nginx; |
| 599 | 16 ngx_str_t modules; |
| 17 ngx_array_t requires; | |
| 18 } ngx_http_perl_main_conf_t; | |
| 19 | |
| 20 | |
| 21 typedef struct { | |
| 22 SV *sub; | |
| 23 ngx_str_t handler; | |
| 24 } ngx_http_perl_loc_conf_t; | |
| 25 | |
| 26 | |
| 27 typedef struct { | |
| 28 SV *sub; | |
| 29 ngx_str_t handler; | |
| 30 } ngx_http_perl_variable_t; | |
| 31 | |
| 32 | |
| 653 | 33 typedef struct { |
| 34 SV *sv; | |
| 35 PerlInterpreter *perl; | |
| 36 } ngx_http_perl_cleanup_t; | |
| 37 | |
| 38 | |
| 617 | 39 #if (NGX_HTTP_SSI) |
| 599 | 40 static ngx_int_t ngx_http_perl_ssi(ngx_http_request_t *r, |
| 41 ngx_http_ssi_ctx_t *ssi_ctx, ngx_str_t **params); | |
| 617 | 42 #endif |
| 43 | |
| 599 | 44 static char *ngx_http_perl_init_interpreter(ngx_conf_t *cf, |
| 45 ngx_http_perl_main_conf_t *pmcf); | |
| 46 static PerlInterpreter * | |
| 47 ngx_http_perl_create_interpreter(ngx_http_perl_main_conf_t *pmcf, | |
| 48 ngx_log_t *log); | |
| 653 | 49 static ngx_int_t ngx_http_perl_run_requires(pTHX_ ngx_array_t *requires, |
| 649 | 50 ngx_log_t *log); |
| 599 | 51 static ngx_int_t ngx_http_perl_call_handler(pTHX_ ngx_http_request_t *r, |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
52 HV *nginx, SV *sub, ngx_str_t **args, ngx_str_t *handler, ngx_str_t *rv); |
| 599 | 53 static void ngx_http_perl_eval_anon_sub(pTHX_ ngx_str_t *handler, SV **sv); |
| 54 | |
| 55 static ngx_int_t ngx_http_perl_preconfiguration(ngx_conf_t *cf); | |
| 56 static void *ngx_http_perl_create_main_conf(ngx_conf_t *cf); | |
| 57 static char *ngx_http_perl_init_main_conf(ngx_conf_t *cf, void *conf); | |
| 58 static void *ngx_http_perl_create_loc_conf(ngx_conf_t *cf); | |
| 59 static char *ngx_http_perl_merge_loc_conf(ngx_conf_t *cf, void *parent, | |
| 60 void *child); | |
| 61 static char *ngx_http_perl_require(ngx_conf_t *cf, ngx_command_t *cmd, | |
| 62 void *conf); | |
| 63 static char *ngx_http_perl(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); | |
| 64 static char *ngx_http_perl_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf); | |
|
872
1c4a5b3f9110
Axe several perl interpreter instances: they may be useful in currently
Igor Sysoev <igor@sysoev.ru>
parents:
871
diff
changeset
|
65 static void ngx_http_perl_cleanup_sv(void *data); |
|
1c4a5b3f9110
Axe several perl interpreter instances: they may be useful in currently
Igor Sysoev <igor@sysoev.ru>
parents:
871
diff
changeset
|
66 |
|
1c4a5b3f9110
Axe several perl interpreter instances: they may be useful in currently
Igor Sysoev <igor@sysoev.ru>
parents:
871
diff
changeset
|
67 #if (NGX_HAVE_PERL_MULTIPLICITY) |
| 599 | 68 static void ngx_http_perl_cleanup_perl(void *data); |
| 649 | 69 #endif |
| 599 | 70 |
| 71 | |
| 72 static ngx_command_t ngx_http_perl_commands[] = { | |
| 73 | |
| 74 { ngx_string("perl_modules"), | |
| 75 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, | |
| 76 ngx_conf_set_str_slot, | |
| 77 NGX_HTTP_MAIN_CONF_OFFSET, | |
| 78 offsetof(ngx_http_perl_main_conf_t, modules), | |
| 79 NULL }, | |
| 80 | |
| 81 { ngx_string("perl_require"), | |
| 82 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE1, | |
| 83 ngx_http_perl_require, | |
| 84 NGX_HTTP_MAIN_CONF_OFFSET, | |
| 85 0, | |
| 86 NULL }, | |
| 87 | |
| 88 { ngx_string("perl"), | |
| 89 NGX_HTTP_LOC_CONF|NGX_CONF_TAKE1, | |
| 90 ngx_http_perl, | |
| 91 NGX_HTTP_LOC_CONF_OFFSET, | |
| 92 0, | |
| 93 NULL }, | |
| 94 | |
| 95 { ngx_string("perl_set"), | |
| 96 NGX_HTTP_MAIN_CONF|NGX_CONF_TAKE2, | |
| 97 ngx_http_perl_set, | |
| 98 NGX_HTTP_LOC_CONF_OFFSET, | |
| 99 0, | |
| 100 NULL }, | |
| 101 | |
| 102 ngx_null_command | |
| 103 }; | |
| 104 | |
| 105 | |
| 106 static ngx_http_module_t ngx_http_perl_module_ctx = { | |
| 107 ngx_http_perl_preconfiguration, /* preconfiguration */ | |
| 108 NULL, /* postconfiguration */ | |
| 109 | |
| 110 ngx_http_perl_create_main_conf, /* create main configuration */ | |
| 111 ngx_http_perl_init_main_conf, /* init main configuration */ | |
| 112 | |
| 113 NULL, /* create server configuration */ | |
| 114 NULL, /* merge server configuration */ | |
| 115 | |
| 116 ngx_http_perl_create_loc_conf, /* create location configuration */ | |
| 117 ngx_http_perl_merge_loc_conf /* merge location configuration */ | |
| 118 }; | |
| 119 | |
| 120 | |
| 121 ngx_module_t ngx_http_perl_module = { | |
| 122 NGX_MODULE_V1, | |
| 123 &ngx_http_perl_module_ctx, /* module context */ | |
| 124 ngx_http_perl_commands, /* module directives */ | |
| 125 NGX_HTTP_MODULE, /* module type */ | |
| 126 NULL, /* init master */ | |
| 127 NULL, /* init module */ | |
| 128 NULL, /* init process */ | |
| 129 NULL, /* init thread */ | |
| 130 NULL, /* exit thread */ | |
| 131 NULL, /* exit process */ | |
| 132 NULL, /* exit master */ | |
| 133 NGX_MODULE_V1_PADDING | |
| 134 }; | |
| 135 | |
| 136 | |
| 617 | 137 #if (NGX_HTTP_SSI) |
| 138 | |
| 599 | 139 #define NGX_HTTP_PERL_SSI_SUB 0 |
| 140 #define NGX_HTTP_PERL_SSI_ARG 1 | |
| 141 | |
| 142 | |
| 143 static ngx_http_ssi_param_t ngx_http_perl_ssi_params[] = { | |
| 144 { ngx_string("sub"), NGX_HTTP_PERL_SSI_SUB, 1, 0 }, | |
| 145 { ngx_string("arg"), NGX_HTTP_PERL_SSI_ARG, 0, 1 }, | |
| 146 { ngx_null_string, 0, 0, 0 } | |
| 147 }; | |
| 148 | |
| 149 static ngx_http_ssi_command_t ngx_http_perl_ssi_command = { | |
| 667 | 150 ngx_string("perl"), ngx_http_perl_ssi, ngx_http_perl_ssi_params, 0, 0, 1 |
| 599 | 151 }; |
| 152 | |
| 617 | 153 #endif |
| 154 | |
| 599 | 155 |
| 681 | 156 static ngx_str_t ngx_null_name = ngx_null_string; |
| 157 | |
| 158 | |
| 633 | 159 static HV *nginx_stash; |
| 160 | |
| 599 | 161 static void |
| 162 ngx_http_perl_xs_init(pTHX) | |
| 163 { | |
| 164 newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, __FILE__); | |
| 633 | 165 |
| 166 nginx_stash = gv_stashpv("nginx", TRUE); | |
| 599 | 167 } |
| 168 | |
| 169 | |
| 170 static ngx_int_t | |
| 171 ngx_http_perl_handler(ngx_http_request_t *r) | |
| 172 { | |
| 629 | 173 /* TODO: Win32 */ |
| 174 if (r->zero_in_uri) { | |
| 175 return NGX_HTTP_NOT_FOUND; | |
| 176 } | |
| 177 | |
| 681 | 178 ngx_http_perl_handle_request(r); |
| 179 | |
| 180 return NGX_DONE; | |
| 629 | 181 } |
| 182 | |
| 183 | |
| 681 | 184 void |
| 629 | 185 ngx_http_perl_handle_request(ngx_http_request_t *r) |
| 186 { | |
| 681 | 187 SV *sub; |
| 599 | 188 ngx_int_t rc; |
| 681 | 189 ngx_str_t uri, args, *handler; |
| 599 | 190 ngx_http_perl_ctx_t *ctx; |
| 191 ngx_http_perl_loc_conf_t *plcf; | |
| 192 ngx_http_perl_main_conf_t *pmcf; | |
| 193 | |
| 194 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "perl handler"); | |
| 195 | |
| 196 ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module); | |
| 197 | |
| 198 if (ctx == NULL) { | |
| 199 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_perl_ctx_t)); | |
| 200 if (ctx == NULL) { | |
| 681 | 201 ngx_http_finalize_request(r, NGX_ERROR); |
| 629 | 202 return; |
| 599 | 203 } |
| 204 | |
| 205 ngx_http_set_ctx(r, ctx, ngx_http_perl_module); | |
| 206 } | |
| 207 | |
| 208 pmcf = ngx_http_get_module_main_conf(r, ngx_http_perl_module); | |
| 209 | |
| 210 { | |
| 211 | |
|
872
1c4a5b3f9110
Axe several perl interpreter instances: they may be useful in currently
Igor Sysoev <igor@sysoev.ru>
parents:
871
diff
changeset
|
212 dTHXa(pmcf->perl); |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
213 PERL_SET_CONTEXT(pmcf->perl); |
| 599 | 214 |
| 681 | 215 if (ctx->next == NULL) { |
| 216 plcf = ngx_http_get_module_loc_conf(r, ngx_http_perl_module); | |
| 217 sub = plcf->sub; | |
| 218 handler = &plcf->handler; | |
| 599 | 219 |
| 681 | 220 } else { |
| 221 sub = ctx->next; | |
| 222 handler = &ngx_null_name; | |
| 223 ctx->next = NULL; | |
| 224 } | |
| 225 | |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
226 rc = ngx_http_perl_call_handler(aTHX_ r, pmcf->nginx, sub, NULL, handler, |
|
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
227 NULL); |
| 599 | 228 |
| 229 } | |
| 230 | |
| 231 if (rc > 600) { | |
| 232 rc = NGX_OK; | |
| 233 } | |
| 234 | |
| 235 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 236 "perl handler done: %i", rc); | |
| 237 | |
| 238 if (ctx->redirect_uri.len) { | |
| 239 uri = ctx->redirect_uri; | |
| 240 args = ctx->redirect_args; | |
| 629 | 241 |
| 242 } else { | |
| 243 uri.len = 0; | |
| 599 | 244 } |
| 245 | |
| 633 | 246 ctx->filename.data = NULL; |
| 599 | 247 ctx->redirect_uri.len = 0; |
| 248 | |
| 681 | 249 if (ctx->done || ctx->next) { |
| 250 return; | |
| 251 } | |
| 252 | |
| 599 | 253 if (uri.len) { |
| 629 | 254 ngx_http_internal_redirect(r, &uri, &args); |
| 255 return; | |
| 599 | 256 } |
| 257 | |
| 258 if (rc == NGX_OK || rc == NGX_HTTP_OK) { | |
| 629 | 259 ngx_http_send_special(r, NGX_HTTP_LAST); |
| 681 | 260 ctx->done = 1; |
| 599 | 261 } |
| 262 | |
| 629 | 263 ngx_http_finalize_request(r, rc); |
| 599 | 264 } |
| 265 | |
| 266 | |
| 267 static ngx_int_t | |
| 268 ngx_http_perl_variable(ngx_http_request_t *r, ngx_http_variable_value_t *v, | |
| 269 uintptr_t data) | |
| 270 { | |
| 271 ngx_http_perl_variable_t *pv = (ngx_http_perl_variable_t *) data; | |
| 272 | |
| 273 ngx_int_t rc; | |
| 274 ngx_str_t value; | |
| 275 ngx_http_perl_ctx_t *ctx; | |
| 276 ngx_http_perl_main_conf_t *pmcf; | |
| 277 | |
| 278 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 279 "perl variable handler"); | |
| 280 | |
| 281 ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module); | |
| 282 | |
| 283 if (ctx == NULL) { | |
| 284 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_perl_ctx_t)); | |
| 285 if (ctx == NULL) { | |
| 286 return NGX_ERROR; | |
| 287 } | |
| 288 | |
| 289 ngx_http_set_ctx(r, ctx, ngx_http_perl_module); | |
|
872
1c4a5b3f9110
Axe several perl interpreter instances: they may be useful in currently
Igor Sysoev <igor@sysoev.ru>
parents:
871
diff
changeset
|
290 } |
| 599 | 291 |
|
872
1c4a5b3f9110
Axe several perl interpreter instances: they may be useful in currently
Igor Sysoev <igor@sysoev.ru>
parents:
871
diff
changeset
|
292 pmcf = ngx_http_get_module_main_conf(r, ngx_http_perl_module); |
| 599 | 293 |
| 294 value.data = NULL; | |
| 295 | |
| 296 { | |
| 297 | |
|
872
1c4a5b3f9110
Axe several perl interpreter instances: they may be useful in currently
Igor Sysoev <igor@sysoev.ru>
parents:
871
diff
changeset
|
298 dTHXa(pmcf->perl); |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
299 PERL_SET_CONTEXT(pmcf->perl); |
| 599 | 300 |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
301 rc = ngx_http_perl_call_handler(aTHX_ r, pmcf->nginx, pv->sub, NULL, |
| 599 | 302 &pv->handler, &value); |
| 303 | |
| 304 } | |
| 305 | |
| 306 if (value.data) { | |
| 307 v->len = value.len; | |
| 308 v->valid = 1; | |
| 309 v->no_cachable = 0; | |
| 310 v->not_found = 0; | |
| 311 v->data = value.data; | |
| 312 | |
| 313 } else { | |
| 314 v->not_found = 1; | |
| 315 } | |
| 316 | |
| 633 | 317 ctx->filename.data = NULL; |
| 599 | 318 ctx->redirect_uri.len = 0; |
| 319 | |
| 871 | 320 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, |
| 321 "perl variable done"); | |
| 322 | |
| 599 | 323 return rc; |
| 324 } | |
| 325 | |
| 326 | |
| 617 | 327 #if (NGX_HTTP_SSI) |
| 328 | |
| 599 | 329 static ngx_int_t |
| 330 ngx_http_perl_ssi(ngx_http_request_t *r, ngx_http_ssi_ctx_t *ssi_ctx, | |
| 331 ngx_str_t **params) | |
| 332 { | |
| 333 SV *sv; | |
| 334 ngx_int_t rc; | |
| 335 ngx_str_t *handler; | |
| 336 ngx_http_perl_ctx_t *ctx; | |
| 337 ngx_http_perl_main_conf_t *pmcf; | |
| 338 | |
| 339 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 340 "perl ssi handler"); | |
| 341 | |
| 342 ctx = ngx_http_get_module_ctx(r, ngx_http_perl_module); | |
| 343 | |
| 344 if (ctx == NULL) { | |
| 345 ctx = ngx_pcalloc(r->pool, sizeof(ngx_http_perl_ctx_t)); | |
| 346 if (ctx == NULL) { | |
| 347 return NGX_ERROR; | |
| 348 } | |
| 349 | |
| 350 ngx_http_set_ctx(r, ctx, ngx_http_perl_module); | |
| 351 } | |
| 352 | |
|
872
1c4a5b3f9110
Axe several perl interpreter instances: they may be useful in currently
Igor Sysoev <igor@sysoev.ru>
parents:
871
diff
changeset
|
353 pmcf = ngx_http_get_module_main_conf(r, ngx_http_perl_module); |
| 599 | 354 |
| 355 ctx->ssi = ssi_ctx; | |
| 356 | |
| 357 handler = params[NGX_HTTP_PERL_SSI_SUB]; | |
| 358 handler->data[handler->len] = '\0'; | |
| 359 | |
| 360 { | |
| 361 | |
|
872
1c4a5b3f9110
Axe several perl interpreter instances: they may be useful in currently
Igor Sysoev <igor@sysoev.ru>
parents:
871
diff
changeset
|
362 dTHXa(pmcf->perl); |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
363 PERL_SET_CONTEXT(pmcf->perl); |
| 599 | 364 |
| 651 | 365 #if 0 |
| 366 | |
| 367 /* the code is disabled to force the precompiled perl code using only */ | |
| 368 | |
| 369 ngx_http_perl_eval_anon_sub(aTHX_ handler, &sv); | |
| 370 | |
| 371 if (sv == &PL_sv_undef) { | |
| 372 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 373 "eval_pv(\"%V\") failed", handler); | |
| 374 return NGX_ERROR; | |
| 375 } | |
| 376 | |
| 377 if (sv == NULL) { | |
| 378 sv = newSVpvn((char *) handler->data, handler->len); | |
| 379 } | |
| 380 | |
| 381 #endif | |
| 382 | |
| 599 | 383 sv = newSVpvn((char *) handler->data, handler->len); |
| 384 | |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
385 rc = ngx_http_perl_call_handler(aTHX_ r, pmcf->nginx, sv, |
|
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
386 ¶ms[NGX_HTTP_PERL_SSI_ARG], |
| 599 | 387 handler, NULL); |
| 388 | |
| 389 SvREFCNT_dec(sv); | |
| 390 | |
| 391 } | |
| 392 | |
| 633 | 393 ctx->filename.data = NULL; |
| 599 | 394 ctx->redirect_uri.len = 0; |
| 395 ctx->ssi = NULL; | |
| 396 | |
| 871 | 397 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, "perl ssi done"); |
| 398 | |
| 599 | 399 return rc; |
| 400 } | |
| 401 | |
| 617 | 402 #endif |
| 403 | |
| 599 | 404 |
| 405 static char * | |
| 406 ngx_http_perl_init_interpreter(ngx_conf_t *cf, ngx_http_perl_main_conf_t *pmcf) | |
| 407 { | |
|
872
1c4a5b3f9110
Axe several perl interpreter instances: they may be useful in currently
Igor Sysoev <igor@sysoev.ru>
parents:
871
diff
changeset
|
408 #if (NGX_HAVE_PERL_MULTIPLICITY) |
| 653 | 409 ngx_pool_cleanup_t *cln; |
| 599 | 410 |
| 411 cln = ngx_pool_cleanup_add(cf->pool, 0); | |
| 412 if (cln == NULL) { | |
| 413 return NGX_CONF_ERROR; | |
| 414 } | |
| 415 | |
| 649 | 416 #else |
| 417 static PerlInterpreter *perl; | |
| 418 #endif | |
| 419 | |
| 599 | 420 #ifdef NGX_PERL_MODULES |
| 421 if (pmcf->modules.data == NULL) { | |
| 422 pmcf->modules.data = NGX_PERL_MODULES; | |
| 423 } | |
| 424 #endif | |
| 425 | |
| 639 | 426 if (pmcf->modules.data) { |
| 427 if (ngx_conf_full_name(cf->cycle, &pmcf->modules) != NGX_OK) { | |
| 428 return NGX_CONF_ERROR; | |
| 429 } | |
| 629 | 430 } |
| 431 | |
|
872
1c4a5b3f9110
Axe several perl interpreter instances: they may be useful in currently
Igor Sysoev <igor@sysoev.ru>
parents:
871
diff
changeset
|
432 #if !(NGX_HAVE_PERL_MULTIPLICITY) |
| 649 | 433 |
| 434 if (perl) { | |
| 653 | 435 if (ngx_http_perl_run_requires(aTHX_ &pmcf->requires, cf->log) |
| 436 != NGX_OK) | |
| 437 { | |
| 649 | 438 return NGX_CONF_ERROR; |
| 439 } | |
| 440 | |
| 441 pmcf->perl = perl; | |
| 442 | |
| 443 return NGX_CONF_OK; | |
| 444 } | |
| 445 | |
| 446 #endif | |
| 447 | |
| 599 | 448 PERL_SYS_INIT(&ngx_argc, &ngx_argv); |
| 449 | |
| 450 pmcf->perl = ngx_http_perl_create_interpreter(pmcf, cf->log); | |
| 451 | |
| 452 if (pmcf->perl == NULL) { | |
| 453 PERL_SYS_TERM(); | |
| 454 return NGX_CONF_ERROR; | |
| 455 } | |
| 456 | |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
457 pmcf->nginx = nginx_stash; |
|
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
458 |
|
872
1c4a5b3f9110
Axe several perl interpreter instances: they may be useful in currently
Igor Sysoev <igor@sysoev.ru>
parents:
871
diff
changeset
|
459 #if (NGX_HAVE_PERL_MULTIPLICITY) |
| 649 | 460 |
| 599 | 461 cln->handler = ngx_http_perl_cleanup_perl; |
| 462 cln->data = pmcf->perl; | |
| 463 | |
| 649 | 464 #else |
| 465 | |
| 466 perl = pmcf->perl; | |
| 467 | |
| 468 #endif | |
| 469 | |
| 599 | 470 return NGX_CONF_OK; |
| 471 } | |
| 472 | |
| 473 | |
| 474 static PerlInterpreter * | |
| 475 ngx_http_perl_create_interpreter(ngx_http_perl_main_conf_t *pmcf, | |
| 476 ngx_log_t *log) | |
| 477 { | |
| 478 int n; | |
| 775 | 479 STRLEN len; |
| 480 SV *sv; | |
| 481 char *ver, *embedding[6]; | |
| 599 | 482 PerlInterpreter *perl; |
| 483 | |
| 484 ngx_log_debug0(NGX_LOG_DEBUG_HTTP, log, 0, "create perl interpreter"); | |
| 485 | |
| 486 perl = perl_alloc(); | |
| 487 if (perl == NULL) { | |
| 488 ngx_log_error(NGX_LOG_ALERT, log, 0, "perl_alloc() failed"); | |
| 489 return NULL; | |
| 490 } | |
| 491 | |
| 492 { | |
| 493 | |
| 494 dTHXa(perl); | |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
495 PERL_SET_CONTEXT(perl); |
|
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
496 |
|
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
497 perl_construct(perl); |
| 599 | 498 |
| 499 #ifdef PERL_EXIT_DESTRUCT_END | |
| 500 PL_exit_flags |= PERL_EXIT_DESTRUCT_END; | |
| 501 #endif | |
| 502 | |
| 503 embedding[0] = ""; | |
| 504 | |
| 505 if (pmcf->modules.data) { | |
| 506 embedding[1] = "-I"; | |
| 507 embedding[2] = (char *) pmcf->modules.data; | |
| 508 n = 3; | |
| 509 | |
| 510 } else { | |
| 511 n = 1; | |
| 512 } | |
| 513 | |
| 514 embedding[n++] = "-Mnginx"; | |
| 515 embedding[n++] = "-e"; | |
| 516 embedding[n++] = "0"; | |
| 517 | |
| 518 n = perl_parse(perl, ngx_http_perl_xs_init, n, embedding, NULL); | |
| 519 | |
| 520 if (n != 0) { | |
| 521 ngx_log_error(NGX_LOG_ALERT, log, 0, "perl_parse() failed: %d", n); | |
| 522 goto fail; | |
| 523 } | |
| 524 | |
| 775 | 525 sv = get_sv("nginx::VERSION", FALSE); |
| 526 ver = SvPV(sv, len); | |
| 527 | |
| 528 if (ngx_strcmp(ver, NGINX_VERSION) != 0) { | |
| 529 ngx_log_error(NGX_LOG_ALERT, log, 0, | |
| 530 "version " NGINX_VERSION " of nginx.pm is required, " | |
| 531 "but %s was found", ver); | |
| 532 goto fail; | |
| 533 } | |
| 534 | |
| 653 | 535 if (ngx_http_perl_run_requires(aTHX_ &pmcf->requires, log) != NGX_OK) { |
| 649 | 536 goto fail; |
| 599 | 537 } |
| 538 | |
| 539 } | |
| 540 | |
| 541 return perl; | |
| 542 | |
| 543 fail: | |
| 544 | |
| 545 (void) perl_destruct(perl); | |
| 546 | |
| 547 perl_free(perl); | |
| 548 | |
| 549 return NULL; | |
| 550 } | |
| 551 | |
| 552 | |
| 649 | 553 static ngx_int_t |
| 653 | 554 ngx_http_perl_run_requires(pTHX_ ngx_array_t *requires, ngx_log_t *log) |
| 649 | 555 { |
| 556 char **script; | |
| 557 STRLEN len; | |
| 558 ngx_str_t err; | |
| 559 ngx_uint_t i; | |
| 560 | |
| 561 script = requires->elts; | |
| 562 for (i = 0; i < requires->nelts; i++) { | |
| 563 | |
| 564 require_pv(script[i]); | |
| 565 | |
| 566 if (SvTRUE(ERRSV)) { | |
| 567 | |
| 568 err.data = (u_char *) SvPV(ERRSV, len); | |
| 569 for (len--; err.data[len] == LF || err.data[len] == CR; len--) { | |
| 570 /* void */ | |
| 571 } | |
| 572 err.len = len + 1; | |
| 573 | |
| 574 ngx_log_error(NGX_LOG_EMERG, log, 0, | |
| 575 "require_pv(\"%s\") failed: \"%V\"", script[i], &err); | |
| 576 | |
| 577 return NGX_ERROR; | |
| 578 } | |
| 579 } | |
| 580 | |
| 581 return NGX_OK; | |
| 582 } | |
| 583 | |
| 584 | |
| 599 | 585 static ngx_int_t |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
586 ngx_http_perl_call_handler(pTHX_ ngx_http_request_t *r, HV *nginx, SV *sub, |
| 599 | 587 ngx_str_t **args, ngx_str_t *handler, ngx_str_t *rv) |
| 588 { | |
| 589 SV *sv; | |
| 590 int n, status; | |
| 591 char *line; | |
| 592 STRLEN len, n_a; | |
| 593 ngx_str_t err; | |
| 594 ngx_uint_t i; | |
| 595 | |
| 596 dSP; | |
| 597 | |
| 598 status = 0; | |
| 599 | |
| 600 ENTER; | |
| 601 SAVETMPS; | |
| 602 | |
| 603 PUSHMARK(sp); | |
| 604 | |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
605 sv = sv_2mortal(sv_bless(newRV_noinc(newSViv(PTR2IV(r))), nginx)); |
| 599 | 606 XPUSHs(sv); |
| 607 | |
| 608 if (args) { | |
| 609 for (i = 0; args[i]; i++) { /* void */ } | |
| 610 | |
| 611 EXTEND(sp, (int) i); | |
| 612 | |
| 613 for (i = 0; args[i]; i++) { | |
| 614 PUSHs(sv_2mortal(newSVpvn((char *) args[i]->data, args[i]->len))); | |
| 615 } | |
| 616 } | |
| 617 | |
| 618 PUTBACK; | |
| 619 | |
| 620 n = call_sv(sub, G_EVAL); | |
| 621 | |
| 622 SPAGAIN; | |
| 623 | |
| 624 if (n) { | |
| 625 if (rv == NULL) { | |
| 626 status = POPi; | |
| 627 | |
| 628 ngx_log_debug1(NGX_LOG_DEBUG_HTTP, r->connection->log, 0, | |
| 629 "call_sv: %d", status); | |
| 630 | |
| 631 } else { | |
| 619 | 632 line = SvPVx(POPs, n_a); |
| 599 | 633 rv->len = n_a; |
| 634 | |
| 635 rv->data = ngx_palloc(r->pool, n_a); | |
| 636 if (rv->data == NULL) { | |
| 637 return NGX_ERROR; | |
| 638 } | |
| 639 | |
| 640 ngx_memcpy(rv->data, line, n_a); | |
| 641 } | |
| 642 } | |
| 643 | |
| 644 PUTBACK; | |
| 645 | |
| 646 FREETMPS; | |
| 647 LEAVE; | |
| 648 | |
| 649 /* check $@ */ | |
| 650 | |
| 651 if (SvTRUE(ERRSV)) { | |
| 652 | |
| 653 err.data = (u_char *) SvPV(ERRSV, len); | |
| 654 for (len--; err.data[len] == LF || err.data[len] == CR; len--) { | |
| 655 /* void */ | |
| 656 } | |
| 657 err.len = len + 1; | |
| 658 | |
| 659 ngx_log_error(NGX_LOG_ERR, r->connection->log, 0, | |
| 660 "call_sv(\"%V\") failed: \"%V\"", | |
| 661 handler, &err); | |
| 662 | |
| 663 if (rv) { | |
| 664 return NGX_ERROR; | |
| 665 } | |
| 666 | |
| 667 return NGX_HTTP_INTERNAL_SERVER_ERROR; | |
| 668 } | |
| 669 | |
| 670 if (n != 1) { | |
| 671 ngx_log_error(NGX_LOG_ALERT, r->connection->log, 0, | |
| 672 "call_sv(\"%V\") returned %d results", handler, n); | |
| 673 status = NGX_OK; | |
| 674 } | |
| 675 | |
| 676 if (rv) { | |
| 677 return NGX_OK; | |
| 678 } | |
| 679 | |
| 680 return (ngx_int_t) status; | |
| 681 } | |
| 682 | |
| 683 | |
| 684 static void | |
| 685 ngx_http_perl_eval_anon_sub(pTHX_ ngx_str_t *handler, SV **sv) | |
| 686 { | |
| 623 | 687 u_char *p; |
| 688 | |
| 689 for (p = handler->data; *p; p++) { | |
| 690 if (*p != ' ' && *p != '\t' && *p != CR && *p != LF) { | |
| 691 break; | |
| 692 } | |
| 693 } | |
| 694 | |
| 649 | 695 if (ngx_strncmp(p, "sub ", 4) == 0 || ngx_strncmp(p, "use ", 4) == 0) { |
| 623 | 696 *sv = eval_pv((char *) p, FALSE); |
| 599 | 697 return; |
| 698 } | |
| 699 | |
| 700 *sv = NULL; | |
| 701 } | |
| 702 | |
| 703 | |
| 704 static void * | |
| 705 ngx_http_perl_create_main_conf(ngx_conf_t *cf) | |
| 706 { | |
| 707 ngx_http_perl_main_conf_t *pmcf; | |
| 708 | |
| 709 pmcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_perl_main_conf_t)); | |
| 710 if (pmcf == NULL) { | |
| 711 return NGX_CONF_ERROR; | |
| 712 } | |
| 713 | |
| 714 if (ngx_array_init(&pmcf->requires, cf->pool, 1, sizeof(u_char *)) | |
| 715 != NGX_OK) | |
| 716 { | |
| 717 return NULL; | |
| 718 } | |
| 719 | |
| 720 return pmcf; | |
| 721 } | |
| 722 | |
| 723 | |
| 724 static char * | |
| 725 ngx_http_perl_init_main_conf(ngx_conf_t *cf, void *conf) | |
| 726 { | |
| 727 ngx_http_perl_main_conf_t *pmcf = conf; | |
| 728 | |
| 729 if (pmcf->perl == NULL) { | |
| 730 if (ngx_http_perl_init_interpreter(cf, pmcf) != NGX_CONF_OK) { | |
| 731 return NGX_CONF_ERROR; | |
| 732 } | |
| 733 } | |
| 734 | |
| 735 return NGX_CONF_OK; | |
| 736 } | |
| 737 | |
| 738 | |
|
872
1c4a5b3f9110
Axe several perl interpreter instances: they may be useful in currently
Igor Sysoev <igor@sysoev.ru>
parents:
871
diff
changeset
|
739 #if (NGX_HAVE_PERL_MULTIPLICITY) |
| 649 | 740 |
| 599 | 741 static void |
| 742 ngx_http_perl_cleanup_perl(void *data) | |
| 743 { | |
| 649 | 744 PerlInterpreter *perl = data; |
| 599 | 745 |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
746 PERL_SET_CONTEXT(perl); |
|
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
747 |
| 599 | 748 (void) perl_destruct(perl); |
| 749 | |
| 750 perl_free(perl); | |
| 751 | |
| 752 PERL_SYS_TERM(); | |
| 753 } | |
| 754 | |
| 649 | 755 #endif |
| 756 | |
| 757 | |
| 758 static void | |
| 759 ngx_http_perl_cleanup_sv(void *data) | |
| 760 { | |
| 653 | 761 ngx_http_perl_cleanup_t *cln = data; |
| 649 | 762 |
| 653 | 763 dTHXa(cln->perl); |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
764 PERL_SET_CONTEXT(cln->perl); |
| 653 | 765 |
| 766 SvREFCNT_dec(cln->sv); | |
| 649 | 767 } |
| 768 | |
| 599 | 769 |
| 770 static ngx_int_t | |
| 771 ngx_http_perl_preconfiguration(ngx_conf_t *cf) | |
| 772 { | |
| 617 | 773 #if (NGX_HTTP_SSI) |
| 599 | 774 ngx_int_t rc; |
| 775 ngx_http_ssi_main_conf_t *smcf; | |
| 776 | |
| 777 smcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_ssi_filter_module); | |
| 778 | |
| 779 rc = ngx_hash_add_key(&smcf->commands, &ngx_http_perl_ssi_command.name, | |
| 780 &ngx_http_perl_ssi_command, NGX_HASH_READONLY_KEY); | |
| 781 | |
| 782 if (rc != NGX_OK) { | |
| 783 if (rc == NGX_BUSY) { | |
| 784 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 785 "conflicting SSI command \"%V\"", | |
| 786 &ngx_http_perl_ssi_command.name); | |
| 787 } | |
| 788 | |
| 789 return NGX_ERROR; | |
| 790 } | |
| 617 | 791 #endif |
| 599 | 792 |
| 793 return NGX_OK; | |
| 794 } | |
| 795 | |
| 796 | |
| 797 static void * | |
| 798 ngx_http_perl_create_loc_conf(ngx_conf_t *cf) | |
| 799 { | |
| 800 ngx_http_perl_loc_conf_t *plcf; | |
| 801 | |
| 802 plcf = ngx_pcalloc(cf->pool, sizeof(ngx_http_perl_loc_conf_t)); | |
| 803 if (plcf == NULL) { | |
| 804 return NGX_CONF_ERROR; | |
| 805 } | |
| 806 | |
| 807 /* | |
| 808 * set by ngx_pcalloc(): | |
| 809 * | |
| 810 * plcf->handler = { 0, NULL }; | |
| 811 */ | |
| 812 | |
| 813 return plcf; | |
| 814 } | |
| 815 | |
| 816 | |
| 817 static char * | |
| 818 ngx_http_perl_merge_loc_conf(ngx_conf_t *cf, void *parent, void *child) | |
| 819 { | |
| 820 ngx_http_perl_loc_conf_t *prev = parent; | |
| 821 ngx_http_perl_loc_conf_t *conf = child; | |
| 822 | |
| 823 if (conf->sub == NULL) { | |
| 824 conf->sub = prev->sub; | |
| 825 conf->handler = prev->handler; | |
| 826 } | |
| 827 | |
| 828 return NGX_CONF_OK; | |
| 829 } | |
| 830 | |
| 831 | |
| 832 static char * | |
| 833 ngx_http_perl_require(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 834 { | |
| 835 ngx_http_perl_main_conf_t *pmcf = conf; | |
| 836 | |
| 837 u_char **p; | |
| 838 ngx_str_t *value; | |
| 839 | |
| 840 value = cf->args->elts; | |
| 841 | |
| 842 p = ngx_array_push(&pmcf->requires); | |
| 843 | |
| 844 if (p == NULL) { | |
| 845 return NGX_CONF_ERROR; | |
| 846 } | |
| 847 | |
| 848 *p = value[1].data; | |
| 849 | |
| 850 return NGX_CONF_OK; | |
| 851 } | |
| 852 | |
| 853 | |
| 854 static char * | |
| 855 ngx_http_perl(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 856 { | |
| 857 ngx_http_perl_loc_conf_t *plcf = conf; | |
| 858 | |
| 859 ngx_str_t *value; | |
| 649 | 860 ngx_pool_cleanup_t *cln; |
| 653 | 861 ngx_http_perl_cleanup_t *pcln; |
| 599 | 862 ngx_http_core_loc_conf_t *clcf; |
| 863 ngx_http_perl_main_conf_t *pmcf; | |
| 864 | |
| 865 value = cf->args->elts; | |
| 866 | |
| 867 if (plcf->handler.data) { | |
| 868 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 869 "duplicate perl handler \"%V\"", &value[1]); | |
| 870 return NGX_CONF_ERROR; | |
| 871 } | |
| 872 | |
| 873 pmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_perl_module); | |
| 874 | |
| 875 if (pmcf->perl == NULL) { | |
| 876 if (ngx_http_perl_init_interpreter(cf, pmcf) != NGX_CONF_OK) { | |
| 877 return NGX_CONF_ERROR; | |
| 878 } | |
| 879 } | |
| 880 | |
| 653 | 881 cln = ngx_pool_cleanup_add(cf->pool, sizeof(ngx_http_perl_cleanup_t)); |
| 649 | 882 if (cln == NULL) { |
| 883 return NGX_CONF_ERROR; | |
| 884 } | |
| 885 | |
| 599 | 886 plcf->handler = value[1]; |
| 887 | |
| 888 { | |
| 889 | |
| 890 dTHXa(pmcf->perl); | |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
891 PERL_SET_CONTEXT(pmcf->perl); |
| 599 | 892 |
| 893 ngx_http_perl_eval_anon_sub(aTHX_ &value[1], &plcf->sub); | |
| 894 | |
| 895 if (plcf->sub == &PL_sv_undef) { | |
| 896 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, | |
| 897 "eval_pv(\"%V\") failed", &value[1]); | |
| 898 return NGX_CONF_ERROR; | |
| 899 } | |
| 900 | |
| 901 if (plcf->sub == NULL) { | |
| 902 plcf->sub = newSVpvn((char *) value[1].data, value[1].len); | |
| 903 } | |
| 904 | |
| 905 } | |
| 906 | |
| 649 | 907 cln->handler = ngx_http_perl_cleanup_sv; |
| 653 | 908 pcln = cln->data; |
| 909 pcln->sv = plcf->sub; | |
| 910 pcln->perl = pmcf->perl; | |
| 649 | 911 |
| 599 | 912 clcf = ngx_http_conf_get_module_loc_conf(cf, ngx_http_core_module); |
| 913 clcf->handler = ngx_http_perl_handler; | |
| 914 | |
| 915 return NGX_CONF_OK; | |
| 916 } | |
| 917 | |
| 918 | |
| 919 static char * | |
| 920 ngx_http_perl_set(ngx_conf_t *cf, ngx_command_t *cmd, void *conf) | |
| 921 { | |
| 922 ngx_int_t index; | |
| 923 ngx_str_t *value; | |
| 649 | 924 ngx_pool_cleanup_t *cln; |
| 599 | 925 ngx_http_variable_t *v; |
| 653 | 926 ngx_http_perl_cleanup_t *pcln; |
| 599 | 927 ngx_http_perl_variable_t *pv; |
| 928 ngx_http_perl_main_conf_t *pmcf; | |
| 929 | |
| 930 value = cf->args->elts; | |
| 931 | |
| 932 if (value[1].data[0] != '$') { | |
| 933 ngx_conf_log_error(NGX_LOG_EMERG, cf, 0, | |
| 934 "invalid variable name \"%V\"", &value[1]); | |
| 935 return NGX_CONF_ERROR; | |
| 936 } | |
| 937 | |
| 938 value[1].len--; | |
| 939 value[1].data++; | |
| 940 | |
| 941 v = ngx_http_add_variable(cf, &value[1], NGX_HTTP_VAR_CHANGABLE); | |
| 942 if (v == NULL) { | |
| 943 return NGX_CONF_ERROR; | |
| 944 } | |
| 945 | |
| 946 pv = ngx_palloc(cf->pool, sizeof(ngx_http_perl_variable_t)); | |
| 947 if (pv == NULL) { | |
| 948 return NGX_CONF_ERROR; | |
| 949 } | |
| 950 | |
| 951 index = ngx_http_get_variable_index(cf, &value[1]); | |
| 952 if (index == NGX_ERROR) { | |
| 953 return NGX_CONF_ERROR; | |
| 954 } | |
| 955 | |
| 956 pmcf = ngx_http_conf_get_module_main_conf(cf, ngx_http_perl_module); | |
| 957 | |
| 958 if (pmcf->perl == NULL) { | |
| 959 if (ngx_http_perl_init_interpreter(cf, pmcf) != NGX_CONF_OK) { | |
| 960 return NGX_CONF_ERROR; | |
| 961 } | |
| 962 } | |
| 963 | |
| 653 | 964 cln = ngx_pool_cleanup_add(cf->pool, sizeof(ngx_http_perl_cleanup_t)); |
| 649 | 965 if (cln == NULL) { |
| 966 return NGX_CONF_ERROR; | |
| 967 } | |
| 968 | |
| 599 | 969 pv->handler = value[2]; |
| 970 | |
| 971 { | |
| 972 | |
| 973 dTHXa(pmcf->perl); | |
|
873
f92ad15c2db1
fix segfaults in future workers those will use old configuration,
Igor Sysoev <igor@sysoev.ru>
parents:
872
diff
changeset
|
974 PERL_SET_CONTEXT(pmcf->perl); |
| 599 | 975 |
| 976 ngx_http_perl_eval_anon_sub(aTHX_ &value[2], &pv->sub); | |
| 977 | |
| 978 if (pv->sub == &PL_sv_undef) { | |
| 979 ngx_conf_log_error(NGX_LOG_ERR, cf, 0, | |
| 980 "eval_pv(\"%V\") failed", &value[2]); | |
| 981 return NGX_CONF_ERROR; | |
| 982 } | |
| 983 | |
| 984 if (pv->sub == NULL) { | |
| 985 pv->sub = newSVpvn((char *) value[2].data, value[2].len); | |
| 986 } | |
| 987 | |
| 988 } | |
| 989 | |
| 649 | 990 cln->handler = ngx_http_perl_cleanup_sv; |
| 653 | 991 pcln = cln->data; |
| 992 pcln->sv = pv->sub; | |
| 993 pcln->perl = pmcf->perl; | |
| 649 | 994 |
| 637 | 995 v->get_handler = ngx_http_perl_variable; |
| 599 | 996 v->data = (uintptr_t) pv; |
| 997 | |
| 998 return NGX_CONF_OK; | |
| 999 } |