1 /* Licensed to the Apache Software Foundation (ASF) under one or more
2 * contributor license agreements. See the NOTICE file distributed with
3 * this work for additional information regarding copyright ownership.
4 * The ASF licenses this file to You under the Apache License, Version 2.0
5 * (the "License"); you may not use this file except in compliance with
6 * the License. You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 #include "apr_strings.h"
20 #include "apr_fnmatch.h"
22 #include "apr_thread_proc.h" /* for RLIMIT stuff */
23 #include "apr_random.h"
25 #define APR_WANT_IOVEC
26 #define APR_WANT_STRFUNC
27 #define APR_WANT_MEMFUNC
30 #include "ap_config.h"
32 #include "http_config.h"
33 #include "http_core.h"
34 #include "http_protocol.h" /* For index_of_response(). Grump. */
35 #include "http_request.h"
36 #include "http_vhost.h"
37 #include "http_main.h" /* For the default_handler below... */
40 #include "http_connection.h"
41 #include "apr_buckets.h"
42 #include "util_filter.h"
43 #include "util_ebcdic.h"
44 #include "util_mutex.h"
45 #include "util_time.h"
46 #include "mpm_common.h"
47 #include "scoreboard.h"
49 #include "mod_proxy.h"
50 #include "ap_listen.h"
52 #include "mod_so.h" /* for ap_find_loaded_module_symbol */
54 #if defined(RLIMIT_CPU) || defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS) || defined (RLIMIT_NPROC)
61 /* LimitRequestBody handling */
62 #define AP_LIMIT_REQ_BODY_UNSET ((apr_off_t) -1)
63 #define AP_DEFAULT_LIMIT_REQ_BODY ((apr_off_t) 0)
65 /* LimitXMLRequestBody handling */
66 #define AP_LIMIT_UNSET ((long) -1)
67 #define AP_DEFAULT_LIMIT_XML_BODY ((size_t)1000000)
69 #define AP_MIN_SENDFILE_BYTES (256)
71 /* maximum include nesting level */
72 #ifndef AP_MAX_INCLUDE_DEPTH
73 #define AP_MAX_INCLUDE_DEPTH (128)
76 /* valid in core-conf, but not in runtime r->used_path_info */
77 #define AP_ACCEPT_PATHINFO_UNSET 3
79 #define AP_CONTENT_MD5_OFF 0
80 #define AP_CONTENT_MD5_ON 1
81 #define AP_CONTENT_MD5_UNSET 2
84 APR_HOOK_LINK(get_mgmt_items)
87 AP_IMPLEMENT_HOOK_RUN_ALL(int, get_mgmt_items,
88 (apr_pool_t *p, const char *val, apr_hash_t *ht),
89 (p, val, ht), OK, DECLINED)
91 /* Server core module... This module provides support for really basic
92 * server operations, including options and commands which control the
93 * operation of other modules. Consider this the bureaucracy module.
95 * The core module also defines handlers, etc., to handle just enough
96 * to allow a server with the core module ONLY to actually serve documents.
98 * This file could almost be mod_core.c, except for the stuff which affects
99 * the http_conf_globals.
102 /* we know core's module_index is 0 */
103 #undef APLOG_MODULE_INDEX
104 #define APLOG_MODULE_INDEX AP_CORE_MODULE_INDEX
106 /* Handles for core filters */
107 AP_DECLARE_DATA ap_filter_rec_t *ap_subreq_core_filter_handle;
108 AP_DECLARE_DATA ap_filter_rec_t *ap_core_output_filter_handle;
109 AP_DECLARE_DATA ap_filter_rec_t *ap_content_length_filter_handle;
110 AP_DECLARE_DATA ap_filter_rec_t *ap_core_input_filter_handle;
112 /* Provide ap_document_root_check storage and default value = true */
113 AP_DECLARE_DATA int ap_document_root_check = 1;
115 /* magic pointer for ErrorDocument xxx "default" */
116 static char errordocument_default;
118 static apr_array_header_t *saved_server_config_defines = NULL;
119 static apr_table_t *server_config_defined_vars = NULL;
121 AP_DECLARE_DATA int ap_main_state = AP_SQ_MS_INITIAL_STARTUP;
122 AP_DECLARE_DATA int ap_run_mode = AP_SQ_RM_UNKNOWN;
123 AP_DECLARE_DATA int ap_config_generation = 0;
125 static void *create_core_dir_config(apr_pool_t *a, char *dir)
127 core_dir_config *conf;
129 conf = (core_dir_config *)apr_pcalloc(a, sizeof(core_dir_config));
131 /* conf->r and conf->d[_*] are initialized by dirsection() or left NULL */
133 conf->opts = dir ? OPT_UNSET : OPT_UNSET|OPT_SYM_LINKS;
134 conf->opts_add = conf->opts_remove = OPT_NONE;
135 conf->override = OR_UNSET|OR_NONE;
136 conf->override_opts = OPT_UNSET | OPT_ALL | OPT_SYM_OWNER | OPT_MULTI;
138 conf->content_md5 = AP_CONTENT_MD5_UNSET;
139 conf->accept_path_info = AP_ACCEPT_PATHINFO_UNSET;
141 conf->use_canonical_name = USE_CANONICAL_NAME_UNSET;
142 conf->use_canonical_phys_port = USE_CANONICAL_PHYS_PORT_UNSET;
144 conf->hostname_lookups = HOSTNAME_LOOKUP_UNSET;
147 * left as NULL (we use apr_pcalloc):
148 * conf->limit_cpu = NULL;
149 * conf->limit_mem = NULL;
150 * conf->limit_nproc = NULL;
151 * conf->sec_file = NULL;
152 * conf->sec_if = NULL;
155 conf->limit_req_body = AP_LIMIT_REQ_BODY_UNSET;
156 conf->limit_xml_body = AP_LIMIT_UNSET;
158 conf->server_signature = srv_sig_unset;
160 conf->add_default_charset = ADD_DEFAULT_CHARSET_UNSET;
161 conf->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME;
163 /* Overriding all negotiation
164 * Set NULL by apr_pcalloc:
165 * conf->mime_type = NULL;
166 * conf->handler = NULL;
167 * conf->output_filters = NULL;
168 * conf->input_filters = NULL;
172 * Flag for use of inodes in ETags.
174 conf->etag_bits = ETAG_UNSET;
175 conf->etag_add = ETAG_UNSET;
176 conf->etag_remove = ETAG_UNSET;
178 conf->enable_mmap = ENABLE_MMAP_UNSET;
179 conf->enable_sendfile = ENABLE_SENDFILE_UNSET;
180 conf->allow_encoded_slashes = 0;
181 conf->decode_encoded_slashes = 0;
183 conf->max_ranges = AP_MAXRANGES_UNSET;
184 conf->max_overlaps = AP_MAXRANGES_UNSET;
185 conf->max_reversals = AP_MAXRANGES_UNSET;
190 static void *merge_core_dir_configs(apr_pool_t *a, void *basev, void *newv)
192 core_dir_config *base = (core_dir_config *)basev;
193 core_dir_config *new = (core_dir_config *)newv;
194 core_dir_config *conf;
197 /* Create this conf by duplicating the base, replacing elements
198 * (or creating copies for merging) where new-> values exist.
200 conf = (core_dir_config *)apr_pmemdup(a, base, sizeof(core_dir_config));
203 conf->d_is_fnmatch = new->d_is_fnmatch;
204 conf->d_components = new->d_components;
206 conf->condition = new->condition;
208 if (new->opts & OPT_UNSET) {
209 /* there was no explicit setting of new->opts, so we merge
210 * preserve the invariant (opts_add & opts_remove) == 0
212 conf->opts_add = (conf->opts_add & ~new->opts_remove) | new->opts_add;
213 conf->opts_remove = (conf->opts_remove & ~new->opts_add)
215 conf->opts = (conf->opts & ~conf->opts_remove) | conf->opts_add;
217 /* If Includes was enabled with exec in the base config, but
218 * was enabled without exec in the new config, then disable
219 * exec in the merged set. */
220 if (((base->opts & (OPT_INCLUDES|OPT_INC_WITH_EXEC))
221 == (OPT_INCLUDES|OPT_INC_WITH_EXEC))
222 && ((new->opts & (OPT_INCLUDES|OPT_INC_WITH_EXEC))
224 conf->opts &= ~OPT_INC_WITH_EXEC;
228 /* otherwise we just copy, because an explicit opts setting
229 * overrides all earlier +/- modifiers
231 conf->opts = new->opts;
232 conf->opts_add = new->opts_add;
233 conf->opts_remove = new->opts_remove;
236 if (!(new->override & OR_UNSET)) {
237 conf->override = new->override;
240 if (!(new->override_opts & OPT_UNSET)) {
241 conf->override_opts = new->override_opts;
244 if (conf->override_list == NULL) {
245 conf->override_list = new->override_list;
248 if (conf->response_code_strings == NULL) {
249 conf->response_code_strings = new->response_code_strings;
251 else if (new->response_code_strings != NULL) {
252 /* If we merge, the merge-result must have its own array
254 conf->response_code_strings = apr_pmemdup(a,
255 base->response_code_strings,
256 sizeof(*conf->response_code_strings) * RESPONSE_CODES);
258 for (i = 0; i < RESPONSE_CODES; ++i) {
259 if (new->response_code_strings[i] != NULL) {
260 conf->response_code_strings[i] = new->response_code_strings[i];
264 /* Otherwise we simply use the base->response_code_strings array
267 if (new->hostname_lookups != HOSTNAME_LOOKUP_UNSET) {
268 conf->hostname_lookups = new->hostname_lookups;
271 if (new->content_md5 == AP_CONTENT_MD5_UNSET) {
272 conf->content_md5 = new->content_md5;
275 if (new->accept_path_info != AP_ACCEPT_PATHINFO_UNSET) {
276 conf->accept_path_info = new->accept_path_info;
279 if (new->use_canonical_name != USE_CANONICAL_NAME_UNSET) {
280 conf->use_canonical_name = new->use_canonical_name;
283 if (new->use_canonical_phys_port != USE_CANONICAL_PHYS_PORT_UNSET) {
284 conf->use_canonical_phys_port = new->use_canonical_phys_port;
288 if (new->limit_cpu) {
289 conf->limit_cpu = new->limit_cpu;
293 #if defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined(RLIMIT_AS)
294 if (new->limit_mem) {
295 conf->limit_mem = new->limit_mem;
300 if (new->limit_nproc) {
301 conf->limit_nproc = new->limit_nproc;
305 if (new->limit_req_body != AP_LIMIT_REQ_BODY_UNSET) {
306 conf->limit_req_body = new->limit_req_body;
309 if (new->limit_xml_body != AP_LIMIT_UNSET)
310 conf->limit_xml_body = new->limit_xml_body;
312 conf->limit_xml_body = base->limit_xml_body;
314 if (!conf->sec_file) {
315 conf->sec_file = new->sec_file;
317 else if (new->sec_file) {
318 /* If we merge, the merge-result must have its own array
320 conf->sec_file = apr_array_append(a, base->sec_file, new->sec_file);
322 /* Otherwise we simply use the base->sec_file array
326 conf->sec_if = new->sec_if;
328 else if (new->sec_if) {
329 /* If we merge, the merge-result must have its own array
331 conf->sec_if = apr_array_append(a, base->sec_if, new->sec_if);
333 /* Otherwise we simply use the base->sec_if array
336 if (new->server_signature != srv_sig_unset) {
337 conf->server_signature = new->server_signature;
340 if (new->add_default_charset != ADD_DEFAULT_CHARSET_UNSET) {
341 conf->add_default_charset = new->add_default_charset;
342 conf->add_default_charset_name = new->add_default_charset_name;
345 /* Overriding all negotiation
347 if (new->mime_type) {
348 conf->mime_type = new->mime_type;
352 conf->handler = new->handler;
355 if (new->output_filters) {
356 conf->output_filters = new->output_filters;
359 if (new->input_filters) {
360 conf->input_filters = new->input_filters;
364 * Now merge the setting of the FileETag directive.
366 if (new->etag_bits == ETAG_UNSET) {
368 (conf->etag_add & (~ new->etag_remove)) | new->etag_add;
370 (conf->etag_remove & (~ new->etag_add)) | new->etag_remove;
372 (conf->etag_bits & (~ conf->etag_remove)) | conf->etag_add;
375 conf->etag_bits = new->etag_bits;
376 conf->etag_add = new->etag_add;
377 conf->etag_remove = new->etag_remove;
380 if (conf->etag_bits != ETAG_NONE) {
381 conf->etag_bits &= (~ ETAG_NONE);
384 if (new->enable_mmap != ENABLE_MMAP_UNSET) {
385 conf->enable_mmap = new->enable_mmap;
388 if (new->enable_sendfile != ENABLE_SENDFILE_UNSET) {
389 conf->enable_sendfile = new->enable_sendfile;
392 conf->allow_encoded_slashes = new->allow_encoded_slashes;
393 conf->decode_encoded_slashes = new->decode_encoded_slashes;
397 conf->log = new->log;
400 conf->log = ap_new_log_config(a, new->log);
401 ap_merge_log_config(base->log, conf->log);
405 conf->max_ranges = new->max_ranges != AP_MAXRANGES_UNSET ? new->max_ranges : base->max_ranges;
406 conf->max_overlaps = new->max_overlaps != AP_MAXRANGES_UNSET ? new->max_overlaps : base->max_overlaps;
407 conf->max_reversals = new->max_reversals != AP_MAXRANGES_UNSET ? new->max_reversals : base->max_reversals;
412 #if APR_HAS_SO_ACCEPTFILTER
413 #ifndef ACCEPT_FILTER_NAME
414 #define ACCEPT_FILTER_NAME "httpready"
415 #ifdef __FreeBSD_version
416 #if __FreeBSD_version < 411000 /* httpready broken before 4.1.1 */
417 #undef ACCEPT_FILTER_NAME
418 #define ACCEPT_FILTER_NAME "dataready"
424 static void *create_core_server_config(apr_pool_t *a, server_rec *s)
426 core_server_config *conf;
427 int is_virtual = s->is_virtual;
429 conf = (core_server_config *)apr_pcalloc(a, sizeof(core_server_config));
431 /* global-default / global-only settings */
434 conf->ap_document_root = DOCUMENT_LOCATION;
435 conf->access_name = DEFAULT_ACCESS_FNAME;
437 /* A mapping only makes sense in the global context */
438 conf->accf_map = apr_table_make(a, 5);
439 #if APR_HAS_SO_ACCEPTFILTER
440 apr_table_setn(conf->accf_map, "http", ACCEPT_FILTER_NAME);
441 apr_table_setn(conf->accf_map, "https", "dataready");
443 apr_table_setn(conf->accf_map, "http", "data");
444 apr_table_setn(conf->accf_map, "https", "data");
447 /* pcalloc'ed - we have NULL's/0's
448 else ** is_virtual ** {
449 conf->ap_document_root = NULL;
450 conf->access_name = NULL;
451 conf->accf_map = NULL;
455 /* initialization, no special case for global context */
457 conf->sec_dir = apr_array_make(a, 40, sizeof(ap_conf_vector_t *));
458 conf->sec_url = apr_array_make(a, 40, sizeof(ap_conf_vector_t *));
460 /* pcalloc'ed - we have NULL's/0's
461 conf->gprof_dir = NULL;
463 ** recursion stopper; 0 == unset
464 conf->redirect_limit = 0;
465 conf->subreq_limit = 0;
467 conf->protocol = NULL;
470 conf->trace_enable = AP_TRACE_UNSET;
475 static void *merge_core_server_configs(apr_pool_t *p, void *basev, void *virtv)
477 core_server_config *base = (core_server_config *)basev;
478 core_server_config *virt = (core_server_config *)virtv;
479 core_server_config *conf = (core_server_config *)
480 apr_pmemdup(p, base, sizeof(core_server_config));
482 if (virt->ap_document_root)
483 conf->ap_document_root = virt->ap_document_root;
485 if (virt->access_name)
486 conf->access_name = virt->access_name;
488 /* XXX optimize to keep base->sec_ pointers if virt->sec_ array is empty */
489 conf->sec_dir = apr_array_append(p, base->sec_dir, virt->sec_dir);
490 conf->sec_url = apr_array_append(p, base->sec_url, virt->sec_url);
492 if (virt->redirect_limit)
493 conf->redirect_limit = virt->redirect_limit;
495 if (virt->subreq_limit)
496 conf->subreq_limit = virt->subreq_limit;
498 if (virt->trace_enable != AP_TRACE_UNSET)
499 conf->trace_enable = virt->trace_enable;
501 /* no action for virt->accf_map, not allowed per-vhost */
504 conf->protocol = virt->protocol;
507 conf->gprof_dir = virt->gprof_dir;
509 if (virt->error_log_format)
510 conf->error_log_format = virt->error_log_format;
512 if (virt->error_log_conn)
513 conf->error_log_conn = virt->error_log_conn;
515 if (virt->error_log_req)
516 conf->error_log_req = virt->error_log_req;
521 /* Add per-directory configuration entry (for <directory> section);
522 * these are part of the core server config.
525 AP_CORE_DECLARE(void) ap_add_per_dir_conf(server_rec *s, void *dir_config)
527 core_server_config *sconf = ap_get_core_module_config(s->module_config);
528 void **new_space = (void **)apr_array_push(sconf->sec_dir);
530 *new_space = dir_config;
533 AP_CORE_DECLARE(void) ap_add_per_url_conf(server_rec *s, void *url_config)
535 core_server_config *sconf = ap_get_core_module_config(s->module_config);
536 void **new_space = (void **)apr_array_push(sconf->sec_url);
538 *new_space = url_config;
541 AP_CORE_DECLARE(void) ap_add_file_conf(apr_pool_t *p, core_dir_config *conf,
547 conf->sec_file = apr_array_make(p, 2, sizeof(ap_conf_vector_t *));
549 new_space = (void **)apr_array_push(conf->sec_file);
550 *new_space = url_config;
553 AP_CORE_DECLARE(const char *) ap_add_if_conf(apr_pool_t *p,
554 core_dir_config *conf,
558 core_dir_config *new = ap_get_module_config(if_config, &core_module);
561 conf->sec_if = apr_array_make(p, 2, sizeof(ap_conf_vector_t *));
563 if (new->condition_ifelse & AP_CONDITION_ELSE) {
565 if (conf->sec_if->nelts > 0) {
566 core_dir_config *last;
567 ap_conf_vector_t *lastelt = APR_ARRAY_IDX(conf->sec_if,
568 conf->sec_if->nelts - 1,
570 last = ap_get_module_config(lastelt, &core_module);
571 if (last->condition_ifelse & AP_CONDITION_IF)
575 return "<Else> or <ElseIf> section without previous <If> or "
576 "<ElseIf> section in same scope";
579 new_space = (void **)apr_array_push(conf->sec_if);
580 *new_space = if_config;
585 /* We need to do a stable sort, qsort isn't stable. So to make it stable
586 * we'll be maintaining the original index into the list, and using it
587 * as the minor key during sorting. The major key is the number of
588 * components (where the root component is zero).
590 struct reorder_sort_rec {
591 ap_conf_vector_t *elt;
595 static int reorder_sorter(const void *va, const void *vb)
597 const struct reorder_sort_rec *a = va;
598 const struct reorder_sort_rec *b = vb;
599 core_dir_config *core_a;
600 core_dir_config *core_b;
602 core_a = ap_get_core_module_config(a->elt);
603 core_b = ap_get_core_module_config(b->elt);
605 /* a regex always sorts after a non-regex
607 if (!core_a->r && core_b->r) {
610 else if (core_a->r && !core_b->r) {
614 /* we always sort next by the number of components
616 if (core_a->d_components < core_b->d_components) {
619 else if (core_a->d_components > core_b->d_components) {
623 /* They have the same number of components, we now have to compare
624 * the minor key to maintain the original order (from the config.)
626 return a->orig_index - b->orig_index;
629 void ap_core_reorder_directories(apr_pool_t *p, server_rec *s)
631 core_server_config *sconf;
632 apr_array_header_t *sec_dir;
633 struct reorder_sort_rec *sortbin;
635 ap_conf_vector_t **elts;
639 sconf = ap_get_core_module_config(s->module_config);
640 sec_dir = sconf->sec_dir;
641 nelts = sec_dir->nelts;
642 elts = (ap_conf_vector_t **)sec_dir->elts;
645 /* simple case of already being sorted... */
646 /* We're not checking this condition to be fast... we're checking
647 * it to avoid trying to palloc zero bytes, which can trigger some
648 * memory debuggers to barf
653 /* we have to allocate tmp space to do a stable sort */
654 apr_pool_create(&tmp, p);
655 sortbin = apr_palloc(tmp, sec_dir->nelts * sizeof(*sortbin));
656 for (i = 0; i < nelts; ++i) {
657 sortbin[i].orig_index = i;
658 sortbin[i].elt = elts[i];
661 qsort(sortbin, nelts, sizeof(*sortbin), reorder_sorter);
663 /* and now copy back to the original array */
664 for (i = 0; i < nelts; ++i) {
665 elts[i] = sortbin[i].elt;
668 apr_pool_destroy(tmp);
671 /*****************************************************************
673 * There are some elements of the core config structures in which
674 * other modules have a legitimate interest (this is ugly, but necessary
675 * to preserve NCSA back-compatibility). So, we have a bunch of accessors
679 AP_DECLARE(int) ap_allow_options(request_rec *r)
681 core_dir_config *conf =
682 (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
687 AP_DECLARE(int) ap_allow_overrides(request_rec *r)
689 core_dir_config *conf;
690 conf = (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
692 return conf->override;
696 * Optional function coming from mod_authn_core, used for
697 * retrieving the type of autorization
699 static APR_OPTIONAL_FN_TYPE(authn_ap_auth_type) *authn_ap_auth_type;
701 AP_DECLARE(const char *) ap_auth_type(request_rec *r)
703 if (authn_ap_auth_type) {
704 return authn_ap_auth_type(r);
710 * Optional function coming from mod_authn_core, used for
711 * retrieving the authorization realm
713 static APR_OPTIONAL_FN_TYPE(authn_ap_auth_name) *authn_ap_auth_name;
715 AP_DECLARE(const char *) ap_auth_name(request_rec *r)
717 if (authn_ap_auth_name) {
718 return authn_ap_auth_name(r);
724 * Optional function coming from mod_access_compat, used to determine how
725 access control interacts with authentication/authorization
727 static APR_OPTIONAL_FN_TYPE(access_compat_ap_satisfies) *access_compat_ap_satisfies;
729 AP_DECLARE(int) ap_satisfies(request_rec *r)
731 if (access_compat_ap_satisfies) {
732 return access_compat_ap_satisfies(r);
734 return SATISFY_NOSPEC;
737 AP_DECLARE(const char *) ap_document_root(request_rec *r) /* Don't use this! */
739 core_server_config *sconf;
740 core_request_config *rconf = ap_get_core_module_config(r->request_config);
741 if (rconf->document_root)
742 return rconf->document_root;
743 sconf = ap_get_core_module_config(r->server->module_config);
744 return sconf->ap_document_root;
747 AP_DECLARE(const char *) ap_context_prefix(request_rec *r)
749 core_request_config *conf = ap_get_core_module_config(r->request_config);
750 if (conf->context_prefix)
751 return conf->context_prefix;
756 AP_DECLARE(const char *) ap_context_document_root(request_rec *r)
758 core_request_config *conf = ap_get_core_module_config(r->request_config);
759 if (conf->context_document_root)
760 return conf->context_document_root;
762 return ap_document_root(r);
765 AP_DECLARE(void) ap_set_document_root(request_rec *r, const char *document_root)
767 core_request_config *conf = ap_get_core_module_config(r->request_config);
768 conf->document_root = document_root;
771 AP_DECLARE(void) ap_set_context_info(request_rec *r, const char *context_prefix,
772 const char *context_document_root)
774 core_request_config *conf = ap_get_core_module_config(r->request_config);
776 conf->context_prefix = context_prefix;
777 if (context_document_root)
778 conf->context_document_root = context_document_root;
781 /* Should probably just get rid of this... the only code that cares is
782 * part of the core anyway (and in fact, it isn't publicised to other
786 char *ap_response_code_string(request_rec *r, int error_index)
788 core_dir_config *dirconf;
789 core_request_config *reqconf = ap_get_core_module_config(r->request_config);
791 /* check for string registered via ap_custom_response() first */
792 if (reqconf->response_code_strings != NULL &&
793 reqconf->response_code_strings[error_index] != NULL) {
794 return reqconf->response_code_strings[error_index];
797 /* check for string specified via ErrorDocument */
798 dirconf = ap_get_core_module_config(r->per_dir_config);
800 if (dirconf->response_code_strings == NULL) {
804 if (dirconf->response_code_strings[error_index] == &errordocument_default) {
808 return dirconf->response_code_strings[error_index];
812 /* Code from Harald Hanche-Olsen <hanche@imf.unit.no> */
813 static APR_INLINE void do_double_reverse (conn_rec *conn)
818 if (conn->double_reverse) {
823 if (conn->remote_host == NULL || conn->remote_host[0] == '\0') {
824 /* single reverse failed, so don't bother */
825 conn->double_reverse = -1;
829 rv = apr_sockaddr_info_get(&sa, conn->remote_host, APR_UNSPEC, 0, 0, conn->pool);
830 if (rv == APR_SUCCESS) {
832 if (apr_sockaddr_equal(sa, conn->client_addr)) {
833 conn->double_reverse = 1;
841 conn->double_reverse = -1;
844 AP_DECLARE(const char *) ap_get_remote_host(conn_rec *conn, void *dir_config,
845 int type, int *str_is_ip)
847 int hostname_lookups;
848 int ignored_str_is_ip;
850 if (!str_is_ip) { /* caller doesn't want to know */
851 str_is_ip = &ignored_str_is_ip;
855 /* If we haven't checked the host name, and we want to */
857 hostname_lookups = ((core_dir_config *)ap_get_core_module_config(dir_config))
860 if (hostname_lookups == HOSTNAME_LOOKUP_UNSET) {
861 hostname_lookups = HOSTNAME_LOOKUP_OFF;
866 hostname_lookups = HOSTNAME_LOOKUP_OFF;
869 if (type != REMOTE_NOLOOKUP
870 && conn->remote_host == NULL
871 && (type == REMOTE_DOUBLE_REV
872 || hostname_lookups != HOSTNAME_LOOKUP_OFF)) {
874 if (apr_getnameinfo(&conn->remote_host, conn->client_addr, 0)
876 ap_str_tolower(conn->remote_host);
878 if (hostname_lookups == HOSTNAME_LOOKUP_DOUBLE) {
879 do_double_reverse(conn);
880 if (conn->double_reverse != 1) {
881 conn->remote_host = NULL;
886 /* if failed, set it to the NULL string to indicate error */
887 if (conn->remote_host == NULL) {
888 conn->remote_host = "";
892 if (type == REMOTE_DOUBLE_REV) {
893 do_double_reverse(conn);
894 if (conn->double_reverse == -1) {
900 * Return the desired information; either the remote DNS name, if found,
901 * or either NULL (if the hostname was requested) or the IP address
902 * (if any identifier was requested).
904 if (conn->remote_host != NULL && conn->remote_host[0] != '\0') {
905 return conn->remote_host;
908 if (type == REMOTE_HOST || type == REMOTE_DOUBLE_REV) {
913 return conn->client_ip;
919 * Optional function coming from mod_ident, used for looking up ident user
921 static APR_OPTIONAL_FN_TYPE(ap_ident_lookup) *ident_lookup;
923 AP_DECLARE(const char *) ap_get_remote_logname(request_rec *r)
925 if (r->connection->remote_logname != NULL) {
926 return r->connection->remote_logname;
930 return ident_lookup(r);
936 /* There are two options regarding what the "name" of a server is. The
937 * "canonical" name as defined by ServerName and Port, or the "client's
938 * name" as supplied by a possible Host: header or full URI.
940 * The DNS option to UseCanonicalName causes this routine to do a
941 * reverse lookup on the local IP address of the connection and use
942 * that for the ServerName. This makes its value more reliable while
943 * at the same time allowing Demon's magic virtual hosting to work.
944 * The assumption is that DNS lookups are sufficiently quick...
947 AP_DECLARE(const char *) ap_get_server_name(request_rec *r)
949 conn_rec *conn = r->connection;
953 d = (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
955 switch (d->use_canonical_name) {
956 case USE_CANONICAL_NAME_ON:
957 retval = r->server->server_hostname;
959 case USE_CANONICAL_NAME_DNS:
960 if (conn->local_host == NULL) {
961 if (apr_getnameinfo(&conn->local_host,
962 conn->local_addr, 0) != APR_SUCCESS)
963 conn->local_host = apr_pstrdup(conn->pool,
964 r->server->server_hostname);
966 ap_str_tolower(conn->local_host);
969 retval = conn->local_host;
971 case USE_CANONICAL_NAME_OFF:
972 case USE_CANONICAL_NAME_UNSET:
973 retval = r->hostname ? r->hostname : r->server->server_hostname;
976 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00109)
977 "ap_get_server_name: Invalid UCN Option somehow");
978 retval = "localhost";
985 * Get the current server name from the request for the purposes
986 * of using in a URL. If the server name is an IPv6 literal
987 * address, it will be returned in URL format (e.g., "[fe80::1]").
989 AP_DECLARE(const char *) ap_get_server_name_for_url(request_rec *r)
991 const char *plain_server_name = ap_get_server_name(r);
994 if (ap_strchr_c(plain_server_name, ':')) { /* IPv6 literal? */
995 return apr_psprintf(r->pool, "[%s]", plain_server_name);
998 return plain_server_name;
1001 AP_DECLARE(apr_port_t) ap_get_server_port(const request_rec *r)
1004 core_dir_config *d =
1005 (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
1007 switch (d->use_canonical_name) {
1008 case USE_CANONICAL_NAME_OFF:
1009 case USE_CANONICAL_NAME_DNS:
1010 case USE_CANONICAL_NAME_UNSET:
1011 if (d->use_canonical_phys_port == USE_CANONICAL_PHYS_PORT_ON)
1012 port = r->parsed_uri.port_str ? r->parsed_uri.port :
1013 r->connection->local_addr->port ? r->connection->local_addr->port :
1014 r->server->port ? r->server->port :
1016 else /* USE_CANONICAL_PHYS_PORT_OFF or USE_CANONICAL_PHYS_PORT_UNSET */
1017 port = r->parsed_uri.port_str ? r->parsed_uri.port :
1018 r->server->port ? r->server->port :
1021 case USE_CANONICAL_NAME_ON:
1022 /* With UseCanonicalName on (and in all versions prior to 1.3)
1023 * Apache will use the hostname and port specified in the
1024 * ServerName directive to construct a canonical name for the
1025 * server. (If no port was specified in the ServerName
1026 * directive, Apache uses the port supplied by the client if
1027 * any is supplied, and finally the default port for the protocol
1030 if (d->use_canonical_phys_port == USE_CANONICAL_PHYS_PORT_ON)
1031 port = r->server->port ? r->server->port :
1032 r->connection->local_addr->port ? r->connection->local_addr->port :
1034 else /* USE_CANONICAL_PHYS_PORT_OFF or USE_CANONICAL_PHYS_PORT_UNSET */
1035 port = r->server->port ? r->server->port :
1039 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00110)
1040 "ap_get_server_port: Invalid UCN Option somehow");
1041 port = ap_default_port(r);
1048 AP_DECLARE(char *) ap_construct_url(apr_pool_t *p, const char *uri,
1051 unsigned port = ap_get_server_port(r);
1052 const char *host = ap_get_server_name_for_url(r);
1054 if (ap_is_default_port(port, r)) {
1055 return apr_pstrcat(p, ap_http_scheme(r), "://", host, uri, NULL);
1058 return apr_psprintf(p, "%s://%s:%u%s", ap_http_scheme(r), host, port, uri);
1061 AP_DECLARE(apr_off_t) ap_get_limit_req_body(const request_rec *r)
1063 core_dir_config *d =
1064 (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
1066 if (d->limit_req_body == AP_LIMIT_REQ_BODY_UNSET) {
1067 return AP_DEFAULT_LIMIT_REQ_BODY;
1070 return d->limit_req_body;
1074 /*****************************************************************
1076 * Commands... this module handles almost all of the NCSA httpd.conf
1077 * commands, but most of the old srm.conf is in the the modules.
1081 /* returns a parent if it matches the given directive */
1082 static const ap_directive_t * find_parent(const ap_directive_t *dirp,
1085 while (dirp->parent != NULL) {
1086 dirp = dirp->parent;
1088 /* ### it would be nice to have atom-ized directives */
1089 if (strcasecmp(dirp->directive, what) == 0)
1096 AP_DECLARE(const char *) ap_check_cmd_context(cmd_parms *cmd,
1099 const char *gt = (cmd->cmd->name[0] == '<'
1100 && cmd->cmd->name[strlen(cmd->cmd->name)-1] != '>')
1102 const ap_directive_t *found;
1104 if ((forbidden & NOT_IN_VIRTUALHOST) && cmd->server->is_virtual) {
1105 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1106 " cannot occur within <VirtualHost> section", NULL);
1109 if ((forbidden & (NOT_IN_LIMIT | NOT_IN_DIR_LOC_FILE))
1110 && cmd->limited != -1) {
1111 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1112 " cannot occur within <Limit> or <LimitExcept> "
1116 if ((forbidden & NOT_IN_HTACCESS) && (cmd->pool == cmd->temp_pool)) {
1117 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1118 " cannot occur within htaccess files", NULL);
1121 if ((forbidden & NOT_IN_DIR_LOC_FILE) == NOT_IN_DIR_LOC_FILE) {
1122 if (cmd->path != NULL) {
1123 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1124 " cannot occur within <Directory/Location/Files> "
1127 if (cmd->cmd->req_override & EXEC_ON_READ) {
1128 /* EXEC_ON_READ must be NOT_IN_DIR_LOC_FILE, if not, it will
1129 * (deliberately) segfault below in the individual tests...
1135 if (((forbidden & NOT_IN_DIRECTORY)
1136 && ((found = find_parent(cmd->directive, "<Directory"))
1137 || (found = find_parent(cmd->directive, "<DirectoryMatch"))))
1138 || ((forbidden & NOT_IN_LOCATION)
1139 && ((found = find_parent(cmd->directive, "<Location"))
1140 || (found = find_parent(cmd->directive, "<LocationMatch"))))
1141 || ((forbidden & NOT_IN_FILES)
1142 && ((found = find_parent(cmd->directive, "<Files"))
1143 || (found = find_parent(cmd->directive, "<FilesMatch"))))) {
1144 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1145 " cannot occur within ", found->directive,
1152 static const char *set_access_name(cmd_parms *cmd, void *dummy,
1155 void *sconf = cmd->server->module_config;
1156 core_server_config *conf = ap_get_core_module_config(sconf);
1158 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
1163 conf->access_name = apr_pstrdup(cmd->pool, arg);
1167 AP_DECLARE(const char *) ap_resolve_env(apr_pool_t *p, const char * word)
1169 # define SMALL_EXPANSION 5
1174 } *result, *current, sresult[SMALL_EXPANSION];
1176 const char *s, *e, *ep;
1180 s = ap_strchr_c(word, '$');
1185 /* well, actually something to do */
1186 ep = word + strlen(word);
1188 result = current = &(sresult[spc++]);
1189 current->next = NULL;
1190 current->string = word;
1191 current->len = s - word;
1192 outlen = current->len;
1195 /* prepare next entry */
1197 current->next = (spc < SMALL_EXPANSION)
1199 : (struct sll *)apr_palloc(p,
1200 sizeof(*current->next));
1201 current = current->next;
1202 current->next = NULL;
1207 if (s[1] == '{' && (e = ap_strchr_c(s, '}'))) {
1208 char *name = apr_pstrndup(p, s+2, e-s-2);
1210 if (server_config_defined_vars)
1211 word = apr_table_get(server_config_defined_vars, name);
1213 word = getenv(name);
1215 current->string = word;
1216 current->len = strlen(word);
1217 outlen += current->len;
1220 if (ap_strchr(name, ':') == 0)
1221 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, NULL, APLOGNO(00111)
1222 "Config variable ${%s} is not defined",
1224 current->string = s;
1225 current->len = e - s + 1;
1226 outlen += current->len;
1231 current->string = s++;
1238 s = ap_strchr_c(s, '$');
1239 current->string = word;
1240 current->len = s ? s - word : ep - word;
1241 outlen += current->len;
1245 /* assemble result */
1246 res_buf = cp = apr_palloc(p, outlen + 1);
1249 memcpy(cp, result->string, result->len);
1252 result = result->next;
1254 res_buf[outlen] = '\0';
1259 static int reset_config_defines(void *dummy)
1261 ap_server_config_defines = saved_server_config_defines;
1262 server_config_defined_vars = NULL;
1267 * Make sure we can revert the effects of Define/UnDefine when restarting.
1268 * This function must be called once per loading of the config, before
1269 * ap_server_config_defines is changed. This may be during reading of the
1270 * config, which is even before the pre_config hook is run (due to
1271 * EXEC_ON_READ for Define/UnDefine).
1273 static void init_config_defines(apr_pool_t *pconf)
1275 saved_server_config_defines = ap_server_config_defines;
1276 /* Use apr_array_copy instead of apr_array_copy_hdr because it does not
1277 * protect from the way unset_define removes entries.
1279 ap_server_config_defines = apr_array_copy(pconf, ap_server_config_defines);
1282 static const char *set_define(cmd_parms *cmd, void *dummy,
1283 const char *name, const char *value)
1285 const char *err = ap_check_cmd_context(cmd, NOT_IN_HTACCESS);
1288 if (ap_strchr_c(name, ':') != NULL)
1289 return "Variable name must not contain ':'";
1291 if (!saved_server_config_defines)
1292 init_config_defines(cmd->pool);
1293 if (!ap_exists_config_define(name)) {
1294 char **newv = (char **)apr_array_push(ap_server_config_defines);
1295 *newv = apr_pstrdup(cmd->pool, name);
1298 if (!server_config_defined_vars)
1299 server_config_defined_vars = apr_table_make(cmd->pool, 5);
1300 apr_table_setn(server_config_defined_vars, name, value);
1306 static const char *unset_define(cmd_parms *cmd, void *dummy,
1311 const char *err = ap_check_cmd_context(cmd, NOT_IN_HTACCESS);
1314 if (ap_strchr_c(name, ':') != NULL)
1315 return "Variable name must not contain ':'";
1317 if (!saved_server_config_defines)
1318 init_config_defines(cmd->pool);
1320 defines = (char **)ap_server_config_defines->elts;
1321 for (i = 0; i < ap_server_config_defines->nelts; i++) {
1322 if (strcmp(defines[i], name) == 0) {
1323 defines[i] = apr_array_pop(ap_server_config_defines);
1328 if (server_config_defined_vars) {
1329 apr_table_unset(server_config_defined_vars, name);
1335 static const char *generate_error(cmd_parms *cmd, void *dummy,
1338 if (!arg || !*arg) {
1339 return "The Error directive was used with no message.";
1342 if (*arg == '"' || *arg == '\'') { /* strip off quotes */
1343 apr_size_t len = strlen(arg);
1344 char last = *(arg + len - 1);
1347 return apr_pstrndup(cmd->pool, arg + 1, len - 2);
1355 static const char *set_gprof_dir(cmd_parms *cmd, void *dummy, const char *arg)
1357 void *sconf = cmd->server->module_config;
1358 core_server_config *conf = ap_get_core_module_config(sconf);
1360 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
1365 conf->gprof_dir = arg;
1370 static const char *set_add_default_charset(cmd_parms *cmd,
1371 void *d_, const char *arg)
1373 core_dir_config *d = d_;
1375 if (!strcasecmp(arg, "Off")) {
1376 d->add_default_charset = ADD_DEFAULT_CHARSET_OFF;
1378 else if (!strcasecmp(arg, "On")) {
1379 d->add_default_charset = ADD_DEFAULT_CHARSET_ON;
1380 d->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME;
1383 d->add_default_charset = ADD_DEFAULT_CHARSET_ON;
1384 d->add_default_charset_name = arg;
1390 static const char *set_document_root(cmd_parms *cmd, void *dummy,
1393 void *sconf = cmd->server->module_config;
1394 core_server_config *conf = ap_get_core_module_config(sconf);
1396 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
1401 /* When ap_document_root_check is false; skip all the stuff below */
1402 if (!ap_document_root_check) {
1403 conf->ap_document_root = arg;
1407 /* Make it absolute, relative to ServerRoot */
1408 arg = ap_server_root_relative(cmd->pool, arg);
1410 return "DocumentRoot must be a directory";
1413 /* TODO: ap_configtestonly */
1414 if (apr_filepath_merge((char**)&conf->ap_document_root, NULL, arg,
1415 APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS
1416 || !ap_is_directory(cmd->pool, arg)) {
1417 if (cmd->server->is_virtual) {
1418 ap_log_perror(APLOG_MARK, APLOG_STARTUP, 0,
1419 cmd->pool, APLOGNO(00112)
1420 "Warning: DocumentRoot [%s] does not exist",
1422 conf->ap_document_root = arg;
1425 return "DocumentRoot must be a directory";
1431 AP_DECLARE(void) ap_custom_response(request_rec *r, int status,
1434 core_request_config *conf = ap_get_core_module_config(r->request_config);
1437 if (conf->response_code_strings == NULL) {
1438 conf->response_code_strings =
1439 apr_pcalloc(r->pool,
1440 sizeof(*conf->response_code_strings) * RESPONSE_CODES);
1443 idx = ap_index_of_response(status);
1445 conf->response_code_strings[idx] =
1446 ((ap_is_url(string) || (*string == '/')) && (*string != '"')) ?
1447 apr_pstrdup(r->pool, string) : apr_pstrcat(r->pool, "\"", string, NULL);
1450 static const char *set_error_document(cmd_parms *cmd, void *conf_,
1451 const char *errno_str, const char *msg)
1453 core_dir_config *conf = conf_;
1454 int error_number, index_number, idx500;
1455 enum { MSG, LOCAL_PATH, REMOTE_PATH } what = MSG;
1457 /* 1st parameter should be a 3 digit number, which we recognize;
1458 * convert it into an array index
1460 error_number = atoi(errno_str);
1461 idx500 = ap_index_of_response(HTTP_INTERNAL_SERVER_ERROR);
1463 if (error_number == HTTP_INTERNAL_SERVER_ERROR) {
1464 index_number = idx500;
1466 else if ((index_number = ap_index_of_response(error_number)) == idx500) {
1467 return apr_pstrcat(cmd->pool, "Unsupported HTTP response code ",
1471 /* Heuristic to determine second argument. */
1472 if (ap_strchr_c(msg,' '))
1474 else if (msg[0] == '/')
1476 else if (ap_is_url(msg))
1481 /* The entry should be ignored if it is a full URL for a 401 error */
1483 if (error_number == 401 && what == REMOTE_PATH) {
1484 ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, cmd->server, APLOGNO(00113)
1485 "cannot use a full URL in a 401 ErrorDocument "
1486 "directive --- ignoring!");
1488 else { /* Store it... */
1489 if (conf->response_code_strings == NULL) {
1490 conf->response_code_strings =
1491 apr_pcalloc(cmd->pool,
1492 sizeof(*conf->response_code_strings) *
1496 if (strcmp(msg, "default") == 0) {
1497 /* special case: ErrorDocument 404 default restores the
1498 * canned server error response
1500 conf->response_code_strings[index_number] = &errordocument_default;
1503 /* hack. Prefix a " if it is a msg; as that is what
1504 * http_protocol.c relies on to distinguish between
1505 * a msg and a (local) path.
1507 conf->response_code_strings[index_number] = (what == MSG) ?
1508 apr_pstrcat(cmd->pool, "\"",msg,NULL) :
1509 apr_pstrdup(cmd->pool, msg);
1516 static const char *set_allow_opts(cmd_parms *cmd, allow_options_t *opts,
1519 allow_options_t opt;
1522 char *w, *p = (char *) l;
1525 while ((w = apr_strtok(p, ",", &tok_state)) != NULL) {
1533 if (!strcasecmp(w, "Indexes")) {
1536 else if (!strcasecmp(w, "Includes")) {
1537 /* If Includes is permitted, both Includes and
1538 * IncludesNOEXEC may be changed. */
1539 opt = (OPT_INCLUDES | OPT_INC_WITH_EXEC);
1541 else if (!strcasecmp(w, "IncludesNOEXEC")) {
1544 else if (!strcasecmp(w, "FollowSymLinks")) {
1545 opt = OPT_SYM_LINKS;
1547 else if (!strcasecmp(w, "SymLinksIfOwnerMatch")) {
1548 opt = OPT_SYM_OWNER;
1550 else if (!strcasecmp(w, "ExecCGI")) {
1553 else if (!strcasecmp(w, "MultiViews")) {
1556 else if (!strcasecmp(w, "RunScripts")) { /* AI backcompat. Yuck */
1557 opt = OPT_MULTI|OPT_EXECCGI;
1559 else if (!strcasecmp(w, "None")) {
1562 else if (!strcasecmp(w, "All")) {
1566 return apr_pstrcat(cmd->pool, "Illegal option ", w, NULL);
1572 (*opts) &= (~OPT_UNSET);
1577 static const char *set_override(cmd_parms *cmd, void *d_, const char *l)
1579 core_dir_config *d = d_;
1584 /* Throw a warning if we're in <Location> or <Files> */
1585 if (ap_check_cmd_context(cmd, NOT_IN_LOCATION | NOT_IN_FILES)) {
1586 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server, APLOGNO(00114)
1587 "Useless use of AllowOverride in line %d of %s.",
1588 cmd->directive->line_num, cmd->directive->filename);
1590 if ((err = ap_check_cmd_context(cmd, NOT_IN_HTACCESS)) != NULL)
1593 d->override = OR_NONE;
1595 w = ap_getword_conf(cmd->temp_pool, &l);
1603 if (!strcasecmp(w, "Limit")) {
1604 d->override |= OR_LIMIT;
1606 else if (!strcasecmp(k, "Options")) {
1607 d->override |= OR_OPTIONS;
1609 set_allow_opts(cmd, &(d->override_opts), v);
1611 d->override_opts = OPT_SYM_LINKS;
1613 else if (!strcasecmp(w, "FileInfo")) {
1614 d->override |= OR_FILEINFO;
1616 else if (!strcasecmp(w, "AuthConfig")) {
1617 d->override |= OR_AUTHCFG;
1619 else if (!strcasecmp(w, "Indexes")) {
1620 d->override |= OR_INDEXES;
1622 else if (!strcasecmp(w, "None")) {
1623 d->override = OR_NONE;
1625 else if (!strcasecmp(w, "All")) {
1626 d->override = OR_ALL;
1629 return apr_pstrcat(cmd->pool, "Illegal override option ", w, NULL);
1632 d->override &= ~OR_UNSET;
1638 static const char *set_override_list(cmd_parms *cmd, void *d_, int argc, char *const argv[])
1640 core_dir_config *d = d_;
1644 /* Throw a warning if we're in <Location> or <Files> */
1645 if (ap_check_cmd_context(cmd, NOT_IN_LOCATION | NOT_IN_FILES)) {
1646 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server, APLOGNO(00115)
1647 "Useless use of AllowOverrideList in line %d of %s.",
1648 cmd->directive->line_num, cmd->directive->filename);
1650 if ((err = ap_check_cmd_context(cmd, NOT_IN_HTACCESS)) != NULL)
1653 d->override_list = apr_table_make(cmd->pool, 1);
1655 for (i=0;i<argc;i++){
1656 if (!strcasecmp(argv[i], "None")) {
1660 const command_rec *result = NULL;
1661 module *mod = ap_top_module;
1662 result = ap_find_command_in_modules(argv[i], &mod);
1664 apr_table_set(d->override_list, argv[i], "1");
1666 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server, APLOGNO(00116)
1667 "Discarding unrecognized directive `%s' in AllowOverrideList.",
1675 static const char *set_options(cmd_parms *cmd, void *d_, const char *l)
1677 core_dir_config *d = d_;
1678 allow_options_t opt;
1685 char *w = ap_getword_conf(cmd->temp_pool, &l);
1688 if (*w == '+' || *w == '-') {
1690 if (!merge && !first && !all_none) {
1691 return "Either all Options must start with + or -, or no Option may.";
1699 return "Either all Options must start with + or -, or no Option may.";
1702 if (!strcasecmp(w, "Indexes")) {
1705 else if (!strcasecmp(w, "Includes")) {
1706 opt = (OPT_INCLUDES | OPT_INC_WITH_EXEC);
1708 else if (!strcasecmp(w, "IncludesNOEXEC")) {
1711 else if (!strcasecmp(w, "FollowSymLinks")) {
1712 opt = OPT_SYM_LINKS;
1714 else if (!strcasecmp(w, "SymLinksIfOwnerMatch")) {
1715 opt = OPT_SYM_OWNER;
1717 else if (!strcasecmp(w, "ExecCGI")) {
1720 else if (!strcasecmp(w, "MultiViews")) {
1723 else if (!strcasecmp(w, "RunScripts")) { /* AI backcompat. Yuck */
1724 opt = OPT_MULTI|OPT_EXECCGI;
1726 else if (!strcasecmp(w, "None")) {
1728 return "'Options None' must be the first Option given.";
1730 else if (merge) { /* Only works since None may not follow any other option. */
1731 return "You may not use 'Options +None' or 'Options -None'.";
1736 else if (!strcasecmp(w, "All")) {
1738 return "'Options All' must be the first option given.";
1740 else if (merge) { /* Only works since All may not follow any other option. */
1741 return "You may not use 'Options +All' or 'Options -All'.";
1747 return apr_pstrcat(cmd->pool, "Illegal option ", w, NULL);
1750 if ( (cmd->override_opts & opt) != opt ) {
1751 return apr_pstrcat(cmd->pool, "Option ", w, " not allowed here", NULL);
1753 else if (action == '-') {
1754 /* we ensure the invariant (d->opts_add & d->opts_remove) == 0 */
1755 d->opts_remove |= opt;
1756 d->opts_add &= ~opt;
1759 else if (action == '+') {
1761 d->opts_remove &= ~opt;
1774 static const char *set_default_type(cmd_parms *cmd, void *d_,
1777 if ((strcasecmp(arg, "off") != 0) && (strcasecmp(arg, "none") != 0)) {
1778 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server, APLOGNO(00117)
1779 "Ignoring deprecated use of DefaultType in line %d of %s.",
1780 cmd->directive->line_num, cmd->directive->filename);
1787 * Note what data should be used when forming file ETag values.
1788 * It would be nicer to do this as an ITERATE, but then we couldn't
1789 * remember the +/- state properly.
1791 static const char *set_etag_bits(cmd_parms *cmd, void *mconfig,
1794 core_dir_config *cfg;
1795 etag_components_t bit;
1803 cfg = (core_dir_config *)mconfig;
1808 while (args[0] != '\0') {
1812 token = ap_getword_conf(cmd->temp_pool, &args);
1813 if ((*token == '+') || (*token == '-')) {
1819 * The occurrence of an absolute setting wipes
1820 * out any previous relative ones. The first such
1821 * occurrence forgets any inherited ones, too.
1824 cfg->etag_bits = ETAG_UNSET;
1825 cfg->etag_add = ETAG_UNSET;
1826 cfg->etag_remove = ETAG_UNSET;
1831 if (strcasecmp(token, "None") == 0) {
1832 if (action != '*') {
1836 cfg->etag_bits = bit = ETAG_NONE;
1840 else if (strcasecmp(token, "All") == 0) {
1841 if (action != '*') {
1846 cfg->etag_bits = bit = ETAG_ALL;
1849 else if (strcasecmp(token, "Size") == 0) {
1852 else if ((strcasecmp(token, "LMTime") == 0)
1853 || (strcasecmp(token, "MTime") == 0)
1854 || (strcasecmp(token, "LastModified") == 0)) {
1857 else if (strcasecmp(token, "INode") == 0) {
1861 return apr_pstrcat(cmd->pool, "Unknown keyword '",
1862 token, "' for ", cmd->cmd->name,
1863 " directive", NULL);
1867 return apr_pstrcat(cmd->pool, cmd->cmd->name, " keyword '",
1868 token, "' cannot be used with '+' or '-'",
1872 if (action == '+') {
1874 * Make sure it's in the 'add' list and absent from the
1877 cfg->etag_add |= bit;
1878 cfg->etag_remove &= (~ bit);
1880 else if (action == '-') {
1881 cfg->etag_remove |= bit;
1882 cfg->etag_add &= (~ bit);
1886 * Non-relative values wipe out any + or - values
1887 * accumulated so far.
1889 cfg->etag_bits |= bit;
1890 cfg->etag_add = ETAG_UNSET;
1891 cfg->etag_remove = ETAG_UNSET;
1897 * Any setting at all will clear the 'None' and 'Unset' bits.
1900 if (cfg->etag_add != ETAG_UNSET) {
1901 cfg->etag_add &= (~ ETAG_UNSET);
1904 if (cfg->etag_remove != ETAG_UNSET) {
1905 cfg->etag_remove &= (~ ETAG_UNSET);
1909 cfg->etag_bits &= (~ ETAG_UNSET);
1911 if ((cfg->etag_bits & ETAG_NONE) != ETAG_NONE) {
1912 cfg->etag_bits &= (~ ETAG_NONE);
1919 static const char *set_enable_mmap(cmd_parms *cmd, void *d_,
1922 core_dir_config *d = d_;
1924 if (strcasecmp(arg, "on") == 0) {
1925 d->enable_mmap = ENABLE_MMAP_ON;
1927 else if (strcasecmp(arg, "off") == 0) {
1928 d->enable_mmap = ENABLE_MMAP_OFF;
1931 return "parameter must be 'on' or 'off'";
1937 static const char *set_enable_sendfile(cmd_parms *cmd, void *d_,
1940 core_dir_config *d = d_;
1942 if (strcasecmp(arg, "on") == 0) {
1943 d->enable_sendfile = ENABLE_SENDFILE_ON;
1945 else if (strcasecmp(arg, "off") == 0) {
1946 d->enable_sendfile = ENABLE_SENDFILE_OFF;
1949 return "parameter must be 'on' or 'off'";
1957 * Report a missing-'>' syntax error.
1959 static char *unclosed_directive(cmd_parms *cmd)
1961 return apr_pstrcat(cmd->pool, cmd->cmd->name,
1962 "> directive missing closing '>'", NULL);
1966 * Report a missing args in '<Foo >' syntax error.
1968 static char *missing_container_arg(cmd_parms *cmd)
1970 return apr_pstrcat(cmd->pool, cmd->cmd->name,
1971 "> directive requires additional arguments", NULL);
1974 AP_CORE_DECLARE_NONSTD(const char *) ap_limit_section(cmd_parms *cmd,
1978 const char *endp = ap_strrchr_c(arg, '>');
1979 const char *limited_methods;
1980 void *tog = cmd->cmd->cmd_data;
1981 apr_int64_t limited = 0;
1982 apr_int64_t old_limited = cmd->limited;
1986 return unclosed_directive(cmd);
1989 limited_methods = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
1991 if (!limited_methods[0]) {
1992 return missing_container_arg(cmd);
1995 while (limited_methods[0]) {
1996 char *method = ap_getword_conf(cmd->temp_pool, &limited_methods);
1999 /* check for builtin or module registered method number */
2000 methnum = ap_method_number_of(method);
2002 if (methnum == M_TRACE && !tog) {
2003 return "TRACE cannot be controlled by <Limit>, see TraceEnable";
2005 else if (methnum == M_INVALID) {
2006 /* method has not been registered yet, but resorce restriction
2007 * is always checked before method handling, so register it.
2009 methnum = ap_method_register(cmd->pool,
2010 apr_pstrdup(cmd->pool, method));
2013 limited |= (AP_METHOD_BIT << methnum);
2016 /* Killing two features with one function,
2017 * if (tog == NULL) <Limit>, else <LimitExcept>
2019 limited = tog ? ~limited : limited;
2021 if (!(old_limited & limited)) {
2022 return apr_pstrcat(cmd->pool, cmd->cmd->name,
2023 "> directive excludes all methods", NULL);
2025 else if ((old_limited & limited) == old_limited) {
2026 return apr_pstrcat(cmd->pool, cmd->cmd->name,
2027 "> directive specifies methods already excluded",
2031 cmd->limited &= limited;
2033 errmsg = ap_walk_config(cmd->directive->first_child, cmd, cmd->context);
2035 cmd->limited = old_limited;
2040 /* XXX: Bogus - need to do this differently (at least OS2/Netware suffer
2041 * the same problem!!!
2042 * We use this in <DirectoryMatch> and <FilesMatch>, to ensure that
2043 * people don't get bitten by wrong-cased regex matches
2047 #define USE_ICASE AP_REG_ICASE
2052 static const char *dirsection(cmd_parms *cmd, void *mconfig, const char *arg)
2055 const char *endp = ap_strrchr_c(arg, '>');
2056 int old_overrides = cmd->override;
2057 char *old_path = cmd->path;
2058 core_dir_config *conf;
2059 ap_conf_vector_t *new_dir_conf = ap_create_per_dir_config(cmd->pool);
2060 ap_regex_t *r = NULL;
2061 const command_rec *thiscmd = cmd->cmd;
2063 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
2069 return unclosed_directive(cmd);
2072 arg = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2075 return missing_container_arg(cmd);
2078 cmd->path = ap_getword_conf(cmd->pool, &arg);
2079 cmd->override = OR_ALL|ACCESS_CONF;
2081 if (!strcmp(cmd->path, "~")) {
2082 cmd->path = ap_getword_conf(cmd->pool, &arg);
2084 return "<Directory ~ > block must specify a path";
2085 r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED|USE_ICASE);
2087 return "Regex could not be compiled";
2090 else if (thiscmd->cmd_data) { /* <DirectoryMatch> */
2091 r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED|USE_ICASE);
2093 return "Regex could not be compiled";
2096 else if (!strcmp(cmd->path, "/") == 0)
2101 * Ensure that the pathname is canonical, and append the trailing /
2103 apr_status_t rv = apr_filepath_merge(&newpath, NULL, cmd->path,
2104 APR_FILEPATH_TRUENAME, cmd->pool);
2105 if (rv != APR_SUCCESS && rv != APR_EPATHWILD) {
2106 return apr_pstrcat(cmd->pool, "<Directory \"", cmd->path,
2107 "\"> path is invalid.", NULL);
2110 cmd->path = newpath;
2111 if (cmd->path[strlen(cmd->path) - 1] != '/')
2112 cmd->path = apr_pstrcat(cmd->pool, cmd->path, "/", NULL);
2115 /* initialize our config and fetch it */
2116 conf = ap_set_config_vectors(cmd->server, new_dir_conf, cmd->path,
2117 &core_module, cmd->pool);
2119 errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_dir_conf);
2124 conf->d = cmd->path;
2125 conf->d_is_fnmatch = (apr_fnmatch_test(conf->d) != 0);
2127 /* Make this explicit - the "/" root has 0 elements, that is, we
2128 * will always merge it, and it will always sort and merge first.
2129 * All others are sorted and tested by the number of slashes.
2131 if (strcmp(conf->d, "/") == 0)
2132 conf->d_components = 0;
2134 conf->d_components = ap_count_dirs(conf->d);
2136 ap_add_per_dir_conf(cmd->server, new_dir_conf);
2139 return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
2140 "> arguments not (yet) supported.", NULL);
2143 cmd->path = old_path;
2144 cmd->override = old_overrides;
2149 static const char *urlsection(cmd_parms *cmd, void *mconfig, const char *arg)
2152 const char *endp = ap_strrchr_c(arg, '>');
2153 int old_overrides = cmd->override;
2154 char *old_path = cmd->path;
2155 core_dir_config *conf;
2156 ap_regex_t *r = NULL;
2157 const command_rec *thiscmd = cmd->cmd;
2158 ap_conf_vector_t *new_url_conf = ap_create_per_dir_config(cmd->pool);
2159 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
2165 return unclosed_directive(cmd);
2168 arg = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2171 return missing_container_arg(cmd);
2174 cmd->path = ap_getword_conf(cmd->pool, &arg);
2175 cmd->override = OR_ALL|ACCESS_CONF;
2177 if (thiscmd->cmd_data) { /* <LocationMatch> */
2178 r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED);
2180 return "Regex could not be compiled";
2183 else if (!strcmp(cmd->path, "~")) {
2184 cmd->path = ap_getword_conf(cmd->pool, &arg);
2185 r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED);
2187 return "Regex could not be compiled";
2191 /* initialize our config and fetch it */
2192 conf = ap_set_config_vectors(cmd->server, new_url_conf, cmd->path,
2193 &core_module, cmd->pool);
2195 errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_url_conf);
2199 conf->d = apr_pstrdup(cmd->pool, cmd->path); /* No mangling, please */
2200 conf->d_is_fnmatch = apr_fnmatch_test(conf->d) != 0;
2203 ap_add_per_url_conf(cmd->server, new_url_conf);
2206 return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
2207 "> arguments not (yet) supported.", NULL);
2210 cmd->path = old_path;
2211 cmd->override = old_overrides;
2216 static const char *filesection(cmd_parms *cmd, void *mconfig, const char *arg)
2219 const char *endp = ap_strrchr_c(arg, '>');
2220 int old_overrides = cmd->override;
2221 char *old_path = cmd->path;
2222 core_dir_config *conf;
2223 ap_regex_t *r = NULL;
2224 const command_rec *thiscmd = cmd->cmd;
2225 ap_conf_vector_t *new_file_conf = ap_create_per_dir_config(cmd->pool);
2226 const char *err = ap_check_cmd_context(cmd,
2227 NOT_IN_LOCATION | NOT_IN_LIMIT);
2234 return unclosed_directive(cmd);
2237 arg = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2240 return missing_container_arg(cmd);
2243 cmd->path = ap_getword_conf(cmd->pool, &arg);
2244 /* Only if not an .htaccess file */
2246 cmd->override = OR_ALL|ACCESS_CONF;
2249 if (thiscmd->cmd_data) { /* <FilesMatch> */
2250 r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED|USE_ICASE);
2252 return "Regex could not be compiled";
2255 else if (!strcmp(cmd->path, "~")) {
2256 cmd->path = ap_getword_conf(cmd->pool, &arg);
2257 r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED|USE_ICASE);
2259 return "Regex could not be compiled";
2264 /* Ensure that the pathname is canonical, but we
2265 * can't test the case/aliases without a fixed path */
2266 if (apr_filepath_merge(&newpath, "", cmd->path,
2267 0, cmd->pool) != APR_SUCCESS)
2268 return apr_pstrcat(cmd->pool, "<Files \"", cmd->path,
2269 "\"> is invalid.", NULL);
2270 cmd->path = newpath;
2273 /* initialize our config and fetch it */
2274 conf = ap_set_config_vectors(cmd->server, new_file_conf, cmd->path,
2275 &core_module, cmd->pool);
2277 errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_file_conf);
2281 conf->d = cmd->path;
2282 conf->d_is_fnmatch = apr_fnmatch_test(conf->d) != 0;
2285 ap_add_file_conf(cmd->pool, (core_dir_config *)mconfig, new_file_conf);
2288 return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
2289 "> arguments not (yet) supported.", NULL);
2292 cmd->path = old_path;
2293 cmd->override = old_overrides;
2298 #define COND_IF ((void *)1)
2299 #define COND_ELSE ((void *)2)
2300 #define COND_ELSEIF ((void *)3)
2302 static const char *ifsection(cmd_parms *cmd, void *mconfig, const char *arg)
2305 const char *endp = ap_strrchr_c(arg, '>');
2306 int old_overrides = cmd->override;
2307 char *old_path = cmd->path;
2308 core_dir_config *conf;
2309 const command_rec *thiscmd = cmd->cmd;
2310 ap_conf_vector_t *new_if_conf = ap_create_per_dir_config(cmd->pool);
2311 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2312 const char *condition;
2313 const char *expr_err;
2320 return unclosed_directive(cmd);
2323 arg = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2326 /* Only if not an .htaccess file */
2328 cmd->override = OR_ALL|ACCESS_CONF;
2331 /* initialize our config and fetch it */
2332 conf = ap_set_config_vectors(cmd->server, new_if_conf, cmd->path,
2333 &core_module, cmd->pool);
2335 if (cmd->cmd->cmd_data == COND_IF)
2336 conf->condition_ifelse = AP_CONDITION_IF;
2337 else if (cmd->cmd->cmd_data == COND_ELSEIF)
2338 conf->condition_ifelse = AP_CONDITION_ELSEIF;
2339 else if (cmd->cmd->cmd_data == COND_ELSE)
2340 conf->condition_ifelse = AP_CONDITION_ELSE;
2344 if (conf->condition_ifelse == AP_CONDITION_ELSE) {
2346 return "<Else> does not take an argument";
2350 return missing_container_arg(cmd);
2351 condition = ap_getword_conf(cmd->pool, &arg);
2352 conf->condition = ap_expr_parse_cmd(cmd, condition, 0, &expr_err, NULL);
2354 return apr_psprintf(cmd->pool, "Cannot parse condition clause: %s",
2358 errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_if_conf);
2362 conf->d = cmd->path;
2363 conf->d_is_fnmatch = 0;
2366 errmsg = ap_add_if_conf(cmd->pool, (core_dir_config *)mconfig, new_if_conf);
2371 return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
2372 "> arguments not supported.", NULL);
2375 cmd->path = old_path;
2376 cmd->override = old_overrides;
2381 static module *find_module(server_rec *s, const char *name)
2383 module *found = ap_find_linked_module(name);
2385 /* search prelinked stuff */
2387 ap_module_symbol_t *current = ap_prelinked_module_symbols;
2389 for (; current->name; ++current) {
2390 if (!strcmp(current->name, name)) {
2391 found = current->modp;
2397 /* search dynamic stuff */
2399 APR_OPTIONAL_FN_TYPE(ap_find_loaded_module_symbol) *check_symbol =
2400 APR_RETRIEVE_OPTIONAL_FN(ap_find_loaded_module_symbol);
2404 * There are two phases where calling ap_find_loaded_module_symbol
2407 * During reading of the config, ap_server_conf is invalid but s
2408 * points to the main server config, if passed from cmd->server
2409 * of an EXEC_ON_READ directive.
2411 * During config parsing, s may be a virtual host that would cause
2412 * a segfault in mod_so if passed to ap_find_loaded_module_symbol,
2413 * because mod_so's server config for vhosts is initialized later.
2414 * But ap_server_conf is already set at this time.
2416 * Therefore we use s if it is not virtual and ap_server_conf if
2419 found = check_symbol(s->is_virtual ? ap_server_conf : s, name);
2427 static const char *start_ifmod(cmd_parms *cmd, void *mconfig, const char *arg)
2429 const char *endp = ap_strrchr_c(arg, '>');
2430 int not = (arg[0] == '!');
2434 return unclosed_directive(cmd);
2437 arg = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2444 return missing_container_arg(cmd);
2447 found = find_module(cmd->server, arg);
2449 if ((!not && found) || (not && !found)) {
2450 ap_directive_t *parent = NULL;
2451 ap_directive_t *current = NULL;
2454 retval = ap_build_cont_config(cmd->pool, cmd->temp_pool, cmd,
2455 ¤t, &parent, "<IfModule");
2456 *(ap_directive_t **)mconfig = current;
2460 *(ap_directive_t **)mconfig = NULL;
2461 return ap_soak_end_container(cmd, "<IfModule");
2465 AP_DECLARE(int) ap_exists_config_define(const char *name)
2470 defines = (char **)ap_server_config_defines->elts;
2471 for (i = 0; i < ap_server_config_defines->nelts; i++) {
2472 if (strcmp(defines[i], name) == 0) {
2480 static const char *start_ifdefine(cmd_parms *cmd, void *dummy, const char *arg)
2486 endp = ap_strrchr_c(arg, '>');
2488 return unclosed_directive(cmd);
2491 arg = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2493 if (arg[0] == '!') {
2499 return missing_container_arg(cmd);
2502 defined = ap_exists_config_define(arg);
2503 if ((!not && defined) || (not && !defined)) {
2504 ap_directive_t *parent = NULL;
2505 ap_directive_t *current = NULL;
2508 retval = ap_build_cont_config(cmd->pool, cmd->temp_pool, cmd,
2509 ¤t, &parent, "<IfDefine");
2510 *(ap_directive_t **)dummy = current;
2514 *(ap_directive_t **)dummy = NULL;
2515 return ap_soak_end_container(cmd, "<IfDefine");
2519 /* httpd.conf commands... beginning with the <VirtualHost> business */
2521 static const char *virtualhost_section(cmd_parms *cmd, void *dummy,
2524 server_rec *main_server = cmd->server, *s;
2526 const char *endp = ap_strrchr_c(arg, '>');
2527 apr_pool_t *p = cmd->pool;
2529 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2535 return unclosed_directive(cmd);
2538 arg = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2541 return missing_container_arg(cmd);
2544 /* FIXME: There's another feature waiting to happen here -- since you
2545 can now put multiple addresses/names on a single <VirtualHost>
2546 you might want to use it to group common definitions and then
2547 define other "subhosts" with their individual differences. But
2548 personally I'd rather just do it with a macro preprocessor. -djg */
2549 if (main_server->is_virtual) {
2550 return "<VirtualHost> doesn't nest!";
2553 errmsg = ap_init_virtual_host(p, arg, main_server, &s);
2558 s->next = main_server->next;
2559 main_server->next = s;
2561 s->defn_name = cmd->directive->filename;
2562 s->defn_line_number = cmd->directive->line_num;
2566 errmsg = ap_walk_config(cmd->directive->first_child, cmd,
2567 s->lookup_defaults);
2569 cmd->server = main_server;
2574 static const char *set_server_alias(cmd_parms *cmd, void *dummy,
2577 if (!cmd->server->names) {
2578 return "ServerAlias only used in <VirtualHost>";
2582 char **item, *name = ap_getword_conf(cmd->pool, &arg);
2584 if (ap_is_matchexp(name)) {
2585 item = (char **)apr_array_push(cmd->server->wild_names);
2588 item = (char **)apr_array_push(cmd->server->names);
2597 static const char *set_accf_map(cmd_parms *cmd, void *dummy,
2598 const char *iproto, const char* iaccf)
2600 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2601 core_server_config *conf =
2602 ap_get_core_module_config(cmd->server->module_config);
2609 proto = apr_pstrdup(cmd->pool, iproto);
2610 ap_str_tolower(proto);
2611 accf = apr_pstrdup(cmd->pool, iaccf);
2612 ap_str_tolower(accf);
2613 apr_table_setn(conf->accf_map, proto, accf);
2618 AP_DECLARE(const char*) ap_get_server_protocol(server_rec* s)
2620 core_server_config *conf = ap_get_core_module_config(s->module_config);
2621 return conf->protocol;
2624 AP_DECLARE(void) ap_set_server_protocol(server_rec* s, const char* proto)
2626 core_server_config *conf = ap_get_core_module_config(s->module_config);
2627 conf->protocol = proto;
2630 static const char *set_protocol(cmd_parms *cmd, void *dummy,
2633 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
2634 core_server_config *conf =
2635 ap_get_core_module_config(cmd->server->module_config);
2642 proto = apr_pstrdup(cmd->pool, arg);
2643 ap_str_tolower(proto);
2644 conf->protocol = proto;
2649 static const char *set_server_string_slot(cmd_parms *cmd, void *dummy,
2652 /* This one's pretty generic... */
2654 int offset = (int)(long)cmd->info;
2655 char *struct_ptr = (char *)cmd->server;
2657 const char *err = ap_check_cmd_context(cmd,
2658 NOT_IN_DIR_LOC_FILE);
2663 *(const char **)(struct_ptr + offset) = arg;
2668 * The ServerName directive takes one argument with format
2669 * [scheme://]fully-qualified-domain-name[:port], for instance
2670 * ServerName www.example.com
2671 * ServerName www.example.com:80
2672 * ServerName https://www.example.com:443
2675 static const char *server_hostname_port(cmd_parms *cmd, void *dummy, const char *arg)
2677 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
2678 const char *portstr, *part;
2686 if (apr_fnmatch_test(arg))
2687 return apr_pstrcat(cmd->temp_pool, "Invalid ServerName \"", arg,
2688 "\" use ServerAlias to set multiple server names.", NULL);
2690 part = ap_strstr_c(arg, "://");
2693 scheme = apr_pstrndup(cmd->pool, arg, part - arg);
2694 ap_str_tolower(scheme);
2695 cmd->server->server_scheme = (const char *)scheme;
2701 portstr = ap_strchr_c(part, ':');
2703 cmd->server->server_hostname = apr_pstrndup(cmd->pool, part,
2706 port = atoi(portstr);
2707 if (port <= 0 || port >= 65536) { /* 65536 == 1<<16 */
2708 return apr_pstrcat(cmd->temp_pool, "The port number \"", arg,
2709 "\" is outside the appropriate range "
2710 "(i.e., 1..65535).", NULL);
2714 cmd->server->server_hostname = apr_pstrdup(cmd->pool, part);
2718 cmd->server->port = port;
2722 static const char *set_signature_flag(cmd_parms *cmd, void *d_,
2725 core_dir_config *d = d_;
2727 if (strcasecmp(arg, "On") == 0) {
2728 d->server_signature = srv_sig_on;
2730 else if (strcasecmp(arg, "Off") == 0) {
2731 d->server_signature = srv_sig_off;
2733 else if (strcasecmp(arg, "EMail") == 0) {
2734 d->server_signature = srv_sig_withmail;
2737 return "ServerSignature: use one of: off | on | email";
2743 static const char *set_server_root(cmd_parms *cmd, void *dummy,
2746 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2752 if ((apr_filepath_merge((char**)&ap_server_root, NULL, arg,
2753 APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS)
2754 || !ap_is_directory(cmd->temp_pool, ap_server_root)) {
2755 return "ServerRoot must be a valid directory";
2761 static const char *set_timeout(cmd_parms *cmd, void *dummy, const char *arg)
2763 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
2769 cmd->server->timeout = apr_time_from_sec(atoi(arg));
2773 static const char *set_allow2f(cmd_parms *cmd, void *d_, const char *arg)
2775 core_dir_config *d = d_;
2777 if (0 == strcasecmp(arg, "on")) {
2778 d->allow_encoded_slashes = 1;
2779 d->decode_encoded_slashes = 1; /* for compatibility with 2.0 & 2.2 */
2780 } else if (0 == strcasecmp(arg, "off")) {
2781 d->allow_encoded_slashes = 0;
2782 d->decode_encoded_slashes = 0;
2783 } else if (0 == strcasecmp(arg, "nodecode")) {
2784 d->allow_encoded_slashes = 1;
2785 d->decode_encoded_slashes = 0;
2787 return apr_pstrcat(cmd->pool,
2788 cmd->cmd->name, " must be On, Off, or NoDecode",
2794 static const char *set_hostname_lookups(cmd_parms *cmd, void *d_,
2797 core_dir_config *d = d_;
2799 if (!strcasecmp(arg, "on")) {
2800 d->hostname_lookups = HOSTNAME_LOOKUP_ON;
2802 else if (!strcasecmp(arg, "off")) {
2803 d->hostname_lookups = HOSTNAME_LOOKUP_OFF;
2805 else if (!strcasecmp(arg, "double")) {
2806 d->hostname_lookups = HOSTNAME_LOOKUP_DOUBLE;
2809 return "parameter must be 'on', 'off', or 'double'";
2815 static const char *set_serverpath(cmd_parms *cmd, void *dummy,
2818 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
2824 cmd->server->path = arg;
2825 cmd->server->pathlen = (int)strlen(arg);
2829 static const char *set_content_md5(cmd_parms *cmd, void *d_, int arg)
2831 core_dir_config *d = d_;
2833 d->content_md5 = arg ? AP_CONTENT_MD5_ON : AP_CONTENT_MD5_OFF;
2837 static const char *set_accept_path_info(cmd_parms *cmd, void *d_, const char *arg)
2839 core_dir_config *d = d_;
2841 if (strcasecmp(arg, "on") == 0) {
2842 d->accept_path_info = AP_REQ_ACCEPT_PATH_INFO;
2844 else if (strcasecmp(arg, "off") == 0) {
2845 d->accept_path_info = AP_REQ_REJECT_PATH_INFO;
2847 else if (strcasecmp(arg, "default") == 0) {
2848 d->accept_path_info = AP_REQ_DEFAULT_PATH_INFO;
2851 return "AcceptPathInfo must be set to on, off or default";
2857 static const char *set_use_canonical_name(cmd_parms *cmd, void *d_,
2860 core_dir_config *d = d_;
2862 if (strcasecmp(arg, "on") == 0) {
2863 d->use_canonical_name = USE_CANONICAL_NAME_ON;
2865 else if (strcasecmp(arg, "off") == 0) {
2866 d->use_canonical_name = USE_CANONICAL_NAME_OFF;
2868 else if (strcasecmp(arg, "dns") == 0) {
2869 d->use_canonical_name = USE_CANONICAL_NAME_DNS;
2872 return "parameter must be 'on', 'off', or 'dns'";
2878 static const char *set_use_canonical_phys_port(cmd_parms *cmd, void *d_,
2881 core_dir_config *d = d_;
2883 if (strcasecmp(arg, "on") == 0) {
2884 d->use_canonical_phys_port = USE_CANONICAL_PHYS_PORT_ON;
2886 else if (strcasecmp(arg, "off") == 0) {
2887 d->use_canonical_phys_port = USE_CANONICAL_PHYS_PORT_OFF;
2890 return "parameter must be 'on' or 'off'";
2896 static const char *include_config (cmd_parms *cmd, void *dummy,
2899 ap_directive_t *conftree = NULL;
2900 const char *conffile, *error;
2901 unsigned *recursion;
2902 int optional = cmd->cmd->cmd_data ? 1 : 0;
2905 apr_pool_userdata_get(&data, "ap_include_sentinel", cmd->pool);
2910 data = recursion = apr_palloc(cmd->pool, sizeof(*recursion));
2912 apr_pool_userdata_setn(data, "ap_include_sentinel", NULL, cmd->pool);
2915 if (++*recursion > AP_MAX_INCLUDE_DEPTH) {
2917 return apr_psprintf(cmd->pool, "Exceeded maximum include depth of %u, "
2918 "There appears to be a recursion.",
2919 AP_MAX_INCLUDE_DEPTH);
2922 conffile = ap_server_root_relative(cmd->pool, name);
2925 return apr_pstrcat(cmd->pool, "Invalid Include path ",
2929 error = ap_process_fnmatch_configs(cmd->server, conffile, &conftree,
2930 cmd->pool, cmd->temp_pool,
2937 *(ap_directive_t **)dummy = conftree;
2939 /* recursion level done */
2947 static const char *set_loglevel(cmd_parms *cmd, void *config_, const char *arg_)
2952 char *arg = apr_pstrdup(cmd->temp_pool, arg_);
2953 struct ap_logconf *log;
2957 core_dir_config *dconf = config_;
2959 dconf->log = ap_new_log_config(cmd->pool, NULL);
2964 log = &cmd->server->log;
2968 return "LogLevel requires level keyword or module loglevel specifier";
2970 level_str = ap_strrchr(arg, ':');
2972 if (level_str == NULL) {
2973 err = ap_parse_log_level(arg, &log->level);
2976 ap_reset_module_loglevels(log, APLOG_NO_MODULE);
2977 ap_log_error(APLOG_MARK, APLOG_TRACE3, 0, cmd->server,
2978 "Setting LogLevel for all modules to %s", arg);
2982 *level_str++ = '\0';
2984 return apr_psprintf(cmd->temp_pool, "Module specifier '%s' must be "
2985 "followed by a log level keyword", arg);
2988 err = ap_parse_log_level(level_str, &level);
2990 return apr_psprintf(cmd->temp_pool, "%s:%s: %s", arg, level_str, err);
2992 if ((module = find_module(cmd->server, arg)) == NULL) {
2993 char *name = apr_psprintf(cmd->temp_pool, "%s_module", arg);
2994 ap_log_error(APLOG_MARK, APLOG_TRACE6, 0, cmd->server,
2995 "Cannot find module '%s', trying '%s'", arg, name);
2996 module = find_module(cmd->server, name);
2999 if (module == NULL) {
3000 return apr_psprintf(cmd->temp_pool, "Cannot find module %s", arg);
3003 ap_set_module_loglevel(cmd->pool, log, module->module_index, level);
3004 ap_log_error(APLOG_MARK, APLOG_TRACE3, 0, cmd->server,
3005 "Setting LogLevel for module %s to %s", module->name,
3011 AP_DECLARE(const char *) ap_psignature(const char *prefix, request_rec *r)
3014 core_dir_config *conf;
3016 conf = (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
3017 if ((conf->server_signature == srv_sig_off)
3018 || (conf->server_signature == srv_sig_unset)) {
3022 apr_snprintf(sport, sizeof sport, "%u", (unsigned) ap_get_server_port(r));
3024 if (conf->server_signature == srv_sig_withmail) {
3025 return apr_pstrcat(r->pool, prefix, "<address>",
3026 ap_get_server_banner(),
3027 " Server at <a href=\"",
3028 ap_is_url(r->server->server_admin) ? "" : "mailto:",
3029 ap_escape_html(r->pool, r->server->server_admin),
3031 ap_escape_html(r->pool, ap_get_server_name(r)),
3032 "</a> Port ", sport,
3033 "</address>\n", NULL);
3036 return apr_pstrcat(r->pool, prefix, "<address>", ap_get_server_banner(),
3038 ap_escape_html(r->pool, ap_get_server_name(r)),
3040 "</address>\n", NULL);
3044 * Handle a request to include the server's OS platform in the Server
3045 * response header field (the ServerTokens directive). Unfortunately
3046 * this requires a new global in order to communicate the setting back to
3047 * http_main so it can insert the information in the right place in the
3051 static char *server_banner = NULL;
3052 static int banner_locked = 0;
3053 static const char *server_description = NULL;
3055 enum server_token_type {
3056 SrvTk_MAJOR, /* eg: Apache/2 */
3057 SrvTk_MINOR, /* eg. Apache/2.0 */
3058 SrvTk_MINIMAL, /* eg: Apache/2.0.41 */
3059 SrvTk_OS, /* eg: Apache/2.0.41 (UNIX) */
3060 SrvTk_FULL, /* eg: Apache/2.0.41 (UNIX) PHP/4.2.2 FooBar/1.2b */
3061 SrvTk_PRODUCT_ONLY /* eg: Apache */
3063 static enum server_token_type ap_server_tokens = SrvTk_FULL;
3065 static apr_status_t reset_banner(void *dummy)
3068 ap_server_tokens = SrvTk_FULL;
3069 server_banner = NULL;
3070 server_description = NULL;
3074 AP_DECLARE(void) ap_get_server_revision(ap_version_t *version)
3076 version->major = AP_SERVER_MAJORVERSION_NUMBER;
3077 version->minor = AP_SERVER_MINORVERSION_NUMBER;
3078 version->patch = AP_SERVER_PATCHLEVEL_NUMBER;
3079 version->add_string = AP_SERVER_ADD_STRING;
3082 AP_DECLARE(const char *) ap_get_server_description(void)
3084 return server_description ? server_description :
3085 AP_SERVER_BASEVERSION " (" PLATFORM ")";
3088 AP_DECLARE(const char *) ap_get_server_banner(void)
3090 return server_banner ? server_banner : AP_SERVER_BASEVERSION;
3093 AP_DECLARE(void) ap_add_version_component(apr_pool_t *pconf, const char *component)
3095 if (! banner_locked) {
3097 * If the version string is null, register our cleanup to reset the
3098 * pointer on pool destruction. We also know that, if NULL,
3099 * we are adding the original SERVER_BASEVERSION string.
3101 if (server_banner == NULL) {
3102 apr_pool_cleanup_register(pconf, NULL, reset_banner,
3103 apr_pool_cleanup_null);
3104 server_banner = apr_pstrdup(pconf, component);
3108 * Tack the given component identifier to the end of
3109 * the existing string.
3111 server_banner = apr_pstrcat(pconf, server_banner, " ",
3115 server_description = apr_pstrcat(pconf, server_description, " ",
3120 * This routine adds the real server base identity to the banner string,
3121 * and then locks out changes until the next reconfig.
3123 static void set_banner(apr_pool_t *pconf)
3125 if (ap_server_tokens == SrvTk_PRODUCT_ONLY) {
3126 ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT);
3128 else if (ap_server_tokens == SrvTk_MINIMAL) {
3129 ap_add_version_component(pconf, AP_SERVER_BASEVERSION);
3131 else if (ap_server_tokens == SrvTk_MINOR) {
3132 ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT "/" AP_SERVER_MINORREVISION);
3134 else if (ap_server_tokens == SrvTk_MAJOR) {
3135 ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT "/" AP_SERVER_MAJORVERSION);
3138 ap_add_version_component(pconf, AP_SERVER_BASEVERSION " (" PLATFORM ")");
3142 * Lock the server_banner string if we're not displaying
3143 * the full set of tokens
3145 if (ap_server_tokens != SrvTk_FULL) {
3148 server_description = AP_SERVER_BASEVERSION " (" PLATFORM ")";
3151 static const char *set_serv_tokens(cmd_parms *cmd, void *dummy,
3152 const char *arg1, const char *arg2)
3154 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
3160 if (!strcasecmp(arg1, "OS")) {
3161 ap_server_tokens = SrvTk_OS;
3163 else if (!strcasecmp(arg1, "Min") || !strcasecmp(arg1, "Minimal")) {
3164 ap_server_tokens = SrvTk_MINIMAL;
3166 else if (!strcasecmp(arg1, "Major")) {
3167 ap_server_tokens = SrvTk_MAJOR;
3169 else if (!strcasecmp(arg1, "Minor") ) {
3170 ap_server_tokens = SrvTk_MINOR;
3172 else if (!strcasecmp(arg1, "Prod") || !strcasecmp(arg1, "ProductOnly")) {
3173 ap_server_tokens = SrvTk_PRODUCT_ONLY;
3176 ap_server_tokens = SrvTk_FULL;
3182 static const char *set_limit_req_line(cmd_parms *cmd, void *dummy,
3185 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
3194 return apr_pstrcat(cmd->temp_pool, "LimitRequestLine \"", arg,
3195 "\" must be a non-negative integer", NULL);
3198 cmd->server->limit_req_line = lim;
3202 static const char *set_limit_req_fieldsize(cmd_parms *cmd, void *dummy,
3205 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
3214 return apr_pstrcat(cmd->temp_pool, "LimitRequestFieldsize \"", arg,
3215 "\" must be a non-negative integer",
3219 cmd->server->limit_req_fieldsize = lim;
3223 static const char *set_limit_req_fields(cmd_parms *cmd, void *dummy,
3226 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
3235 return apr_pstrcat(cmd->temp_pool, "LimitRequestFields \"", arg,
3236 "\" must be a non-negative integer (0 = no limit)",
3240 cmd->server->limit_req_fields = lim;
3244 static const char *set_limit_req_body(cmd_parms *cmd, void *conf_,
3247 core_dir_config *conf = conf_;
3250 if (APR_SUCCESS != apr_strtoff(&conf->limit_req_body, arg, &errp, 10)) {
3251 return "LimitRequestBody argument is not parsable.";
3253 if (*errp || conf->limit_req_body < 0) {
3254 return "LimitRequestBody requires a non-negative integer.";
3260 static const char *set_limit_xml_req_body(cmd_parms *cmd, void *conf_,
3263 core_dir_config *conf = conf_;
3265 conf->limit_xml_body = atol(arg);
3266 if (conf->limit_xml_body < 0)
3267 return "LimitXMLRequestBody requires a non-negative integer.";
3272 static const char *set_max_ranges(cmd_parms *cmd, void *conf_, const char *arg)
3274 core_dir_config *conf = conf_;
3277 if (!strcasecmp(arg, "none")) {
3278 val = AP_MAXRANGES_NORANGES;
3280 else if (!strcasecmp(arg, "default")) {
3281 val = AP_MAXRANGES_DEFAULT;
3283 else if (!strcasecmp(arg, "unlimited")) {
3284 val = AP_MAXRANGES_UNLIMITED;
3289 return "MaxRanges requires 'none', 'default', 'unlimited' or "
3290 "a positive integer";
3293 conf->max_ranges = val;
3298 static const char *set_max_overlaps(cmd_parms *cmd, void *conf_, const char *arg)
3300 core_dir_config *conf = conf_;
3303 if (!strcasecmp(arg, "none")) {
3304 val = AP_MAXRANGES_NORANGES;
3306 else if (!strcasecmp(arg, "default")) {
3307 val = AP_MAXRANGES_DEFAULT;
3309 else if (!strcasecmp(arg, "unlimited")) {
3310 val = AP_MAXRANGES_UNLIMITED;
3315 return "MaxRangeOverlaps requires 'none', 'default', 'unlimited' or "
3316 "a positive integer";
3319 conf->max_overlaps = val;
3324 static const char *set_max_reversals(cmd_parms *cmd, void *conf_, const char *arg)
3326 core_dir_config *conf = conf_;
3329 if (!strcasecmp(arg, "none")) {
3330 val = AP_MAXRANGES_NORANGES;
3332 else if (!strcasecmp(arg, "default")) {
3333 val = AP_MAXRANGES_DEFAULT;
3335 else if (!strcasecmp(arg, "unlimited")) {
3336 val = AP_MAXRANGES_UNLIMITED;
3341 return "MaxRangeReversals requires 'none', 'default', 'unlimited' or "
3342 "a positive integer";
3345 conf->max_reversals = val;
3350 AP_DECLARE(size_t) ap_get_limit_xml_body(const request_rec *r)
3352 core_dir_config *conf;
3354 conf = ap_get_core_module_config(r->per_dir_config);
3355 if (conf->limit_xml_body == AP_LIMIT_UNSET)
3356 return AP_DEFAULT_LIMIT_XML_BODY;
3358 return (size_t)conf->limit_xml_body;
3361 #if !defined (RLIMIT_CPU) || !(defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS)) || !defined (RLIMIT_NPROC)
3362 static const char *no_set_limit(cmd_parms *cmd, void *conf_,
3363 const char *arg, const char *arg2)
3365 ap_log_error(APLOG_MARK, APLOG_ERR, 0, cmd->server, APLOGNO(00118)
3366 "%s not supported on this platform", cmd->cmd->name);
3373 static const char *set_limit_cpu(cmd_parms *cmd, void *conf_,
3374 const char *arg, const char *arg2)
3376 core_dir_config *conf = conf_;
3378 ap_unixd_set_rlimit(cmd, &conf->limit_cpu, arg, arg2, RLIMIT_CPU);
3383 #if defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS)
3384 static const char *set_limit_mem(cmd_parms *cmd, void *conf_,
3385 const char *arg, const char * arg2)
3387 core_dir_config *conf = conf_;
3389 #if defined(RLIMIT_AS)
3390 ap_unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2 ,RLIMIT_AS);
3391 #elif defined(RLIMIT_DATA)
3392 ap_unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2, RLIMIT_DATA);
3393 #elif defined(RLIMIT_VMEM)
3394 ap_unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2, RLIMIT_VMEM);
3402 static const char *set_limit_nproc(cmd_parms *cmd, void *conf_,
3403 const char *arg, const char * arg2)
3405 core_dir_config *conf = conf_;
3407 ap_unixd_set_rlimit(cmd, &conf->limit_nproc, arg, arg2, RLIMIT_NPROC);
3412 static const char *set_recursion_limit(cmd_parms *cmd, void *dummy,
3413 const char *arg1, const char *arg2)
3415 core_server_config *conf =
3416 ap_get_core_module_config(cmd->server->module_config);
3417 int limit = atoi(arg1);
3420 return "The recursion limit must be greater than zero.";
3423 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server, APLOGNO(00119)
3424 "Limiting internal redirects to very low numbers may "
3425 "cause normal requests to fail.");
3428 conf->redirect_limit = limit;
3434 return "The recursion limit must be greater than zero.";
3437 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server, APLOGNO(00120)
3438 "Limiting the subrequest depth to a very low level may"
3439 " cause normal requests to fail.");
3443 conf->subreq_limit = limit;
3448 static void log_backtrace(const request_rec *r)
3450 const request_rec *top = r;
3452 ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(00121)
3453 "r->uri = %s", r->uri ? r->uri : "(unexpectedly NULL)");
3455 while (top && (top->prev || top->main)) {
3458 ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(00122)
3459 "redirected from r->uri = %s",
3460 top->uri ? top->uri : "(unexpectedly NULL)");
3463 if (!top->prev && top->main) {
3465 ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(00123)
3466 "subrequested from r->uri = %s",
3467 top->uri ? top->uri : "(unexpectedly NULL)");
3473 * check whether redirect limit is reached
3475 AP_DECLARE(int) ap_is_recursion_limit_exceeded(const request_rec *r)
3477 core_server_config *conf =
3478 ap_get_core_module_config(r->server->module_config);
3479 const request_rec *top = r;
3480 int redirects = 0, subreqs = 0;
3481 int rlimit = conf->redirect_limit
3482 ? conf->redirect_limit
3483 : AP_DEFAULT_MAX_INTERNAL_REDIRECTS;
3484 int slimit = conf->subreq_limit
3485 ? conf->subreq_limit
3486 : AP_DEFAULT_MAX_SUBREQ_DEPTH;
3489 while (top->prev || top->main) {
3491 if (++redirects >= rlimit) {
3492 /* uuh, too much. */
3493 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00124)
3494 "Request exceeded the limit of %d internal "
3495 "redirects due to probable configuration error. "
3496 "Use 'LimitInternalRecursion' to increase the "
3497 "limit if necessary. Use 'LogLevel debug' to get "
3498 "a backtrace.", rlimit);
3500 /* post backtrace */
3503 /* return failure */
3510 if (!top->prev && top->main) {
3511 if (++subreqs >= slimit) {
3512 /* uuh, too much. */
3513 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00125)
3514 "Request exceeded the limit of %d subrequest "
3515 "nesting levels due to probable configuration "
3516 "error. Use 'LimitInternalRecursion' to increase "
3517 "the limit if necessary. Use 'LogLevel debug' to "
3518 "get a backtrace.", slimit);
3520 /* post backtrace */
3523 /* return failure */
3531 /* recursion state: ok */
3535 static const char *set_trace_enable(cmd_parms *cmd, void *dummy,
3538 core_server_config *conf =
3539 ap_get_core_module_config(cmd->server->module_config);
3541 if (strcasecmp(arg1, "on") == 0) {
3542 conf->trace_enable = AP_TRACE_ENABLE;
3544 else if (strcasecmp(arg1, "off") == 0) {
3545 conf->trace_enable = AP_TRACE_DISABLE;
3547 else if (strcasecmp(arg1, "extended") == 0) {
3548 conf->trace_enable = AP_TRACE_EXTENDED;
3551 return "TraceEnable must be one of 'on', 'off', or 'extended'";
3557 static apr_hash_t *errorlog_hash;
3559 static int log_constant_item(const ap_errorlog_info *info, const char *arg,
3560 char *buf, int buflen)
3562 char *end = apr_cpystrn(buf, arg, buflen);
3566 static char *parse_errorlog_misc_string(apr_pool_t *p,
3567 ap_errorlog_format_item *it,
3571 char scratch[MAX_STRING_LEN];
3574 * non-leading white space terminates this string to allow the next field
3575 * separator to be inserted
3579 it->func = log_constant_item;
3582 while (*s && *s != '%' && (*s != ' ' || at_start) && d < scratch + MAX_STRING_LEN) {
3605 /* handle end of string */
3609 /* copy next char verbatim */
3616 it->arg = apr_pstrdup(p, scratch);
3622 static char *parse_errorlog_item(apr_pool_t *p, ap_errorlog_format_item *it,
3625 const char *s = *sa;
3626 ap_errorlog_handler *handler;
3631 it->flags |= AP_ERRORLOG_FLAG_FIELD_SEP;
3633 return parse_errorlog_misc_string(p, it, sa);
3639 /* percent-space (% ) is a field separator */
3640 it->flags |= AP_ERRORLOG_FLAG_FIELD_SEP;
3643 return parse_errorlog_item(p, it, sa);
3645 else if (*s == '%') {
3647 it->func = log_constant_item;
3656 it->arg = ap_getword(p, &s, '}');
3660 it->flags |= AP_ERRORLOG_FLAG_REQUIRED;
3664 it->flags |= AP_ERRORLOG_FLAG_NULL_AS_HYPHEN;
3677 while (apr_isdigit(*++s))
3678 i = i * 10 + (*s) - '0';
3679 it->min_loglevel = i;
3683 it->flags |= AP_ERRORLOG_FLAG_MESSAGE;
3687 handler = (ap_errorlog_handler *)apr_hash_get(errorlog_hash, s, 1);
3693 return apr_pstrcat(p, "Unrecognized error log format directive %",
3696 it->func = handler->func;
3702 return "Ran off end of error log format parsing args to some directive";
3705 static apr_array_header_t *parse_errorlog_string(apr_pool_t *p,
3710 apr_array_header_t *a = apr_array_make(p, 30,
3711 sizeof(ap_errorlog_format_item));
3713 int seen_msg_fmt = 0;
3716 ap_errorlog_format_item *item =
3717 (ap_errorlog_format_item *)apr_array_push(a);
3718 memset(item, 0, sizeof(*item));
3719 res = parse_errorlog_item(p, item, &s);
3724 if (item->flags & AP_ERRORLOG_FLAG_MESSAGE) {
3726 *err = "%M cannot be used in once-per-request or "
3727 "once-per-connection formats";
3732 if (is_main_fmt && item->flags & AP_ERRORLOG_FLAG_REQUIRED) {
3733 *err = "The '+' flag cannot be used in the main error log format";
3736 if (!is_main_fmt && item->min_loglevel) {
3737 *err = "The loglevel cannot be used as a condition in "
3738 "once-per-request or once-per-connection formats";
3741 if (item->min_loglevel > APLOG_TRACE8) {
3742 *err = "The specified loglevel modifier is out of range";
3747 if (is_main_fmt && !seen_msg_fmt) {
3748 *err = "main ErrorLogFormat must contain message format string '%M'";
3755 static const char *set_errorlog_format(cmd_parms *cmd, void *dummy,
3756 const char *arg1, const char *arg2)
3758 const char *err_string = NULL;
3759 core_server_config *conf =
3760 ap_get_core_module_config(cmd->server->module_config);
3763 conf->error_log_format = parse_errorlog_string(cmd->pool, arg1,
3766 else if (!strcasecmp(arg1, "connection")) {
3767 if (!conf->error_log_conn) {
3768 conf->error_log_conn = apr_array_make(cmd->pool, 5,
3769 sizeof(apr_array_header_t *));
3773 apr_array_header_t **e;
3774 e = (apr_array_header_t **) apr_array_push(conf->error_log_conn);
3775 *e = parse_errorlog_string(cmd->pool, arg2, &err_string, 0);
3778 else if (!strcasecmp(arg1, "request")) {
3779 if (!conf->error_log_req) {
3780 conf->error_log_req = apr_array_make(cmd->pool, 5,
3781 sizeof(apr_array_header_t *));
3785 apr_array_header_t **e;
3786 e = (apr_array_header_t **) apr_array_push(conf->error_log_req);
3787 *e = parse_errorlog_string(cmd->pool, arg2, &err_string, 0);
3791 err_string = "ErrorLogFormat type must be one of request, connection";
3797 AP_DECLARE(void) ap_register_errorlog_handler(apr_pool_t *p, char *tag,
3798 ap_errorlog_handler_fn_t *handler,
3801 ap_errorlog_handler *log_struct = apr_palloc(p, sizeof(*log_struct));
3802 log_struct->func = handler;
3803 log_struct->flags = flags;
3805 apr_hash_set(errorlog_hash, tag, 1, (const void *)log_struct);
3809 /* Note --- ErrorDocument will now work from .htaccess files.
3810 * The AllowOverride of Fileinfo allows webmasters to turn it off
3813 static const command_rec core_cmds[] = {
3815 /* Old access config file commands */
3817 AP_INIT_RAW_ARGS("<Directory", dirsection, NULL, RSRC_CONF,
3818 "Container for directives affecting resources located in the specified "
3820 AP_INIT_RAW_ARGS("<Location", urlsection, NULL, RSRC_CONF,
3821 "Container for directives affecting resources accessed through the "
3822 "specified URL paths"),
3823 AP_INIT_RAW_ARGS("<VirtualHost", virtualhost_section, NULL, RSRC_CONF,
3824 "Container to map directives to a particular virtual host, takes one or "
3825 "more host addresses"),
3826 AP_INIT_RAW_ARGS("<Files", filesection, NULL, OR_ALL,
3827 "Container for directives affecting files matching specified patterns"),
3828 AP_INIT_RAW_ARGS("<Limit", ap_limit_section, NULL, OR_LIMIT | OR_AUTHCFG,
3829 "Container for authentication directives when accessed using specified HTTP "
3831 AP_INIT_RAW_ARGS("<LimitExcept", ap_limit_section, (void*)1,
3832 OR_LIMIT | OR_AUTHCFG,
3833 "Container for authentication directives to be applied when any HTTP "
3834 "method other than those specified is used to access the resource"),
3835 AP_INIT_TAKE1("<IfModule", start_ifmod, NULL, EXEC_ON_READ | OR_ALL,
3836 "Container for directives based on existence of specified modules"),
3837 AP_INIT_TAKE1("<IfDefine", start_ifdefine, NULL, EXEC_ON_READ | OR_ALL,
3838 "Container for directives based on existence of command line defines"),
3839 AP_INIT_RAW_ARGS("<DirectoryMatch", dirsection, (void*)1, RSRC_CONF,
3840 "Container for directives affecting resources located in the "
3841 "specified directories"),
3842 AP_INIT_RAW_ARGS("<LocationMatch", urlsection, (void*)1, RSRC_CONF,
3843 "Container for directives affecting resources accessed through the "
3844 "specified URL paths"),
3845 AP_INIT_RAW_ARGS("<FilesMatch", filesection, (void*)1, OR_ALL,
3846 "Container for directives affecting files matching specified patterns"),
3848 AP_INIT_TAKE1("GprofDir", set_gprof_dir, NULL, RSRC_CONF,
3849 "Directory to plop gmon.out files"),
3851 AP_INIT_TAKE1("AddDefaultCharset", set_add_default_charset, NULL, OR_FILEINFO,
3852 "The name of the default charset to add to any Content-Type without one or 'Off' to disable"),
3853 AP_INIT_TAKE1("AcceptPathInfo", set_accept_path_info, NULL, OR_FILEINFO,
3854 "Set to on or off for PATH_INFO to be accepted by handlers, or default for the per-handler preference"),
3855 AP_INIT_TAKE12("Define", set_define, NULL, EXEC_ON_READ|ACCESS_CONF|RSRC_CONF,
3856 "Define a variable, optionally to a value. Same as passing -D to the command line."),
3857 AP_INIT_TAKE1("UnDefine", unset_define, NULL, EXEC_ON_READ|ACCESS_CONF|RSRC_CONF,
3858 "Undefine the existence of a variable. Undo a Define."),
3859 AP_INIT_RAW_ARGS("Error", generate_error, NULL, OR_ALL,
3860 "Generate error message from within configuration"),
3861 AP_INIT_RAW_ARGS("<If", ifsection, COND_IF, OR_ALL,
3862 "Container for directives to be conditionally applied"),
3863 AP_INIT_RAW_ARGS("<ElseIf", ifsection, COND_ELSEIF, OR_ALL,
3864 "Container for directives to be conditionally applied"),
3865 AP_INIT_RAW_ARGS("<Else", ifsection, COND_ELSE, OR_ALL,
3866 "Container for directives to be conditionally applied"),
3868 /* Old resource config file commands */
3870 AP_INIT_RAW_ARGS("AccessFileName", set_access_name, NULL, RSRC_CONF,
3871 "Name(s) of per-directory config files (default: .htaccess)"),
3872 AP_INIT_TAKE1("DocumentRoot", set_document_root, NULL, RSRC_CONF,
3873 "Root directory of the document tree"),
3874 AP_INIT_TAKE2("ErrorDocument", set_error_document, NULL, OR_FILEINFO,
3875 "Change responses for HTTP errors"),
3876 AP_INIT_RAW_ARGS("AllowOverride", set_override, NULL, ACCESS_CONF,
3877 "Controls what groups of directives can be configured by per-directory "
3879 AP_INIT_TAKE_ARGV("AllowOverrideList", set_override_list, NULL, ACCESS_CONF,
3880 "Controls what individual directives can be configured by per-directory "
3882 AP_INIT_RAW_ARGS("Options", set_options, NULL, OR_OPTIONS,
3883 "Set a number of attributes for a given directory"),
3884 AP_INIT_TAKE1("DefaultType", set_default_type, NULL, OR_FILEINFO,
3885 "the default media type for otherwise untyped files (DEPRECATED)"),
3886 AP_INIT_RAW_ARGS("FileETag", set_etag_bits, NULL, OR_FILEINFO,
3887 "Specify components used to construct a file's ETag"),
3888 AP_INIT_TAKE1("EnableMMAP", set_enable_mmap, NULL, OR_FILEINFO,
3889 "Controls whether memory-mapping may be used to read files"),
3890 AP_INIT_TAKE1("EnableSendfile", set_enable_sendfile, NULL, OR_FILEINFO,
3891 "Controls whether sendfile may be used to transmit files"),
3893 /* Old server config file commands */
3895 AP_INIT_TAKE1("Protocol", set_protocol, NULL, RSRC_CONF,
3896 "Set the Protocol for httpd to use."),
3897 AP_INIT_TAKE2("AcceptFilter", set_accf_map, NULL, RSRC_CONF,
3898 "Set the Accept Filter to use for a protocol"),
3899 AP_INIT_TAKE1("Port", ap_set_deprecated, NULL, RSRC_CONF,
3900 "Port was replaced with Listen in Apache 2.0"),
3901 AP_INIT_TAKE1("HostnameLookups", set_hostname_lookups, NULL,
3902 ACCESS_CONF|RSRC_CONF,
3903 "\"on\" to enable, \"off\" to disable reverse DNS lookups, or \"double\" to "
3904 "enable double-reverse DNS lookups"),
3905 AP_INIT_TAKE1("ServerAdmin", set_server_string_slot,
3906 (void *)APR_OFFSETOF(server_rec, server_admin), RSRC_CONF,
3907 "The email address of the server administrator"),
3908 AP_INIT_TAKE1("ServerName", server_hostname_port, NULL, RSRC_CONF,
3909 "The hostname and port of the server"),
3910 AP_INIT_TAKE1("ServerSignature", set_signature_flag, NULL, OR_ALL,
3911 "En-/disable server signature (on|off|email)"),
3912 AP_INIT_TAKE1("ServerRoot", set_server_root, NULL, RSRC_CONF | EXEC_ON_READ,
3913 "Common directory of server-related files (logs, confs, etc.)"),
3914 AP_INIT_TAKE1("ErrorLog", set_server_string_slot,
3915 (void *)APR_OFFSETOF(server_rec, error_fname), RSRC_CONF,
3916 "The filename of the error log"),
3917 AP_INIT_TAKE12("ErrorLogFormat", set_errorlog_format, NULL, RSRC_CONF,
3918 "Format string for the ErrorLog"),
3919 AP_INIT_RAW_ARGS("ServerAlias", set_server_alias, NULL, RSRC_CONF,
3920 "A name or names alternately used to access the server"),
3921 AP_INIT_TAKE1("ServerPath", set_serverpath, NULL, RSRC_CONF,
3922 "The pathname the server can be reached at"),
3923 AP_INIT_TAKE1("Timeout", set_timeout, NULL, RSRC_CONF,
3924 "Timeout duration (sec)"),
3925 AP_INIT_FLAG("ContentDigest", set_content_md5, NULL, OR_OPTIONS,
3926 "whether or not to send a Content-MD5 header with each request"),
3927 AP_INIT_TAKE1("UseCanonicalName", set_use_canonical_name, NULL,
3928 RSRC_CONF|ACCESS_CONF,
3929 "How to work out the ServerName : Port when constructing URLs"),
3930 AP_INIT_TAKE1("UseCanonicalPhysicalPort", set_use_canonical_phys_port, NULL,
3931 RSRC_CONF|ACCESS_CONF,
3932 "Whether to use the physical Port when constructing URLs"),
3933 /* TODO: RlimitFoo should all be part of mod_cgi, not in the core */
3934 /* TODO: ListenBacklog in MPM */
3935 AP_INIT_TAKE1("Include", include_config, NULL,
3936 (RSRC_CONF | ACCESS_CONF | EXEC_ON_READ),
3937 "Name(s) of the config file(s) to be included; fails if the wildcard does "
3938 "not match at least one file"),
3939 AP_INIT_TAKE1("IncludeOptional", include_config, (void*)1,
3940 (RSRC_CONF | ACCESS_CONF | EXEC_ON_READ),
3941 "Name or pattern of the config file(s) to be included; ignored if the file "
3942 "does not exist or the pattern does not match any files"),
3943 AP_INIT_ITERATE("LogLevel", set_loglevel, NULL, RSRC_CONF|ACCESS_CONF,
3944 "Level of verbosity in error logging"),
3945 AP_INIT_TAKE1("NameVirtualHost", ap_set_name_virtual_host, NULL, RSRC_CONF,
3946 "A numeric IP address:port, or the name of a host"),
3947 AP_INIT_TAKE12("ServerTokens", set_serv_tokens, NULL, RSRC_CONF,
3948 "Determine tokens displayed in the Server: header - Min(imal), "
3949 "Major, Minor, Prod, OS or Full"),
3950 AP_INIT_TAKE1("LimitRequestLine", set_limit_req_line, NULL, RSRC_CONF,
3951 "Limit on maximum size of an HTTP request line"),
3952 AP_INIT_TAKE1("LimitRequestFieldsize", set_limit_req_fieldsize, NULL,
3954 "Limit on maximum size of an HTTP request header field"),
3955 AP_INIT_TAKE1("LimitRequestFields", set_limit_req_fields, NULL, RSRC_CONF,
3956 "Limit (0 = unlimited) on max number of header fields in a request message"),
3957 AP_INIT_TAKE1("LimitRequestBody", set_limit_req_body,
3958 (void*)APR_OFFSETOF(core_dir_config, limit_req_body), OR_ALL,
3959 "Limit (in bytes) on maximum size of request message body"),
3960 AP_INIT_TAKE1("LimitXMLRequestBody", set_limit_xml_req_body, NULL, OR_ALL,
3961 "Limit (in bytes) on maximum size of an XML-based request "
3963 AP_INIT_RAW_ARGS("Mutex", ap_set_mutex, NULL, RSRC_CONF,
3964 "mutex (or \"default\") and mechanism"),
3966 AP_INIT_TAKE1("MaxRanges", set_max_ranges, NULL, RSRC_CONF|ACCESS_CONF,
3967 "Maximum number of Ranges in a request before returning the entire "
3968 "resource, or 0 for unlimited"),
3969 AP_INIT_TAKE1("MaxRangeOverlaps", set_max_overlaps, NULL, RSRC_CONF|ACCESS_CONF,
3970 "Maximum number of overlaps in Ranges in a request before returning the entire "
3971 "resource, or 0 for unlimited"),
3972 AP_INIT_TAKE1("MaxRangeReversals", set_max_reversals, NULL, RSRC_CONF|ACCESS_CONF,
3973 "Maximum number of reversals in Ranges in a request before returning the entire "
3974 "resource, or 0 for unlimited"),
3975 /* System Resource Controls */
3977 AP_INIT_TAKE12("RLimitCPU", set_limit_cpu,
3978 (void*)APR_OFFSETOF(core_dir_config, limit_cpu),
3979 OR_ALL, "Soft/hard limits for max CPU usage in seconds"),
3981 AP_INIT_TAKE12("RLimitCPU", no_set_limit, NULL,
3982 OR_ALL, "Soft/hard limits for max CPU usage in seconds"),
3984 #if defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined (RLIMIT_AS)
3985 AP_INIT_TAKE12("RLimitMEM", set_limit_mem,
3986 (void*)APR_OFFSETOF(core_dir_config, limit_mem),
3987 OR_ALL, "Soft/hard limits for max memory usage per process"),
3989 AP_INIT_TAKE12("RLimitMEM", no_set_limit, NULL,
3990 OR_ALL, "Soft/hard limits for max memory usage per process"),
3993 AP_INIT_TAKE12("RLimitNPROC", set_limit_nproc,
3994 (void*)APR_OFFSETOF(core_dir_config, limit_nproc),
3995 OR_ALL, "soft/hard limits for max number of processes per uid"),
3997 AP_INIT_TAKE12("RLimitNPROC", no_set_limit, NULL,
3998 OR_ALL, "soft/hard limits for max number of processes per uid"),
4001 /* internal recursion stopper */
4002 AP_INIT_TAKE12("LimitInternalRecursion", set_recursion_limit, NULL, RSRC_CONF,
4003 "maximum recursion depth of internal redirects and subrequests"),
4005 AP_INIT_TAKE1("ForceType", ap_set_string_slot_lower,
4006 (void *)APR_OFFSETOF(core_dir_config, mime_type), OR_FILEINFO,
4007 "a mime type that overrides other configured type"),
4008 AP_INIT_TAKE1("SetHandler", ap_set_string_slot_lower,
4009 (void *)APR_OFFSETOF(core_dir_config, handler), OR_FILEINFO,
4010 "a handler name that overrides any other configured handler"),
4011 AP_INIT_TAKE1("SetOutputFilter", ap_set_string_slot,
4012 (void *)APR_OFFSETOF(core_dir_config, output_filters), OR_FILEINFO,
4013 "filter (or ; delimited list of filters) to be run on the request content"),
4014 AP_INIT_TAKE1("SetInputFilter", ap_set_string_slot,
4015 (void *)APR_OFFSETOF(core_dir_config, input_filters), OR_FILEINFO,
4016 "filter (or ; delimited list of filters) to be run on the request body"),
4017 AP_INIT_TAKE1("AllowEncodedSlashes", set_allow2f, NULL, RSRC_CONF,
4018 "Allow URLs containing '/' encoded as '%2F'"),
4020 /* scoreboard.c directives */
4021 AP_INIT_TAKE1("ScoreBoardFile", ap_set_scoreboard, NULL, RSRC_CONF,
4022 "A file for Apache to maintain runtime process management information"),
4023 AP_INIT_FLAG("ExtendedStatus", ap_set_extended_status, NULL, RSRC_CONF,
4024 "\"On\" to track extended status information, \"Off\" to disable"),
4025 AP_INIT_FLAG("SeeRequestTail", ap_set_reqtail, NULL, RSRC_CONF,
4026 "For extended status, \"On\" to see the last 63 chars of "
4027 "the request line, \"Off\" (default) to see the first 63"),
4030 * These are default configuration directives that mpms can/should
4032 * XXX These are not for all platforms, and even some Unix MPMs might not want
4035 AP_INIT_TAKE1("PidFile", ap_mpm_set_pidfile, NULL, RSRC_CONF,
4036 "A file for logging the server process ID"),
4037 AP_INIT_TAKE1("MaxRequestsPerChild", ap_mpm_set_max_requests, NULL, RSRC_CONF,
4038 "Maximum number of connections a particular child serves before "
4039 "dying. (DEPRECATED, use MaxConnectionsPerChild)"),
4040 AP_INIT_TAKE1("MaxConnectionsPerChild", ap_mpm_set_max_requests, NULL, RSRC_CONF,
4041 "Maximum number of connections a particular child serves before dying."),
4042 AP_INIT_TAKE1("CoreDumpDirectory", ap_mpm_set_coredumpdir, NULL, RSRC_CONF,
4043 "The location of the directory Apache changes to before dumping core"),
4044 AP_INIT_TAKE1("MaxMemFree", ap_mpm_set_max_mem_free, NULL, RSRC_CONF,
4045 "Maximum number of 1k blocks a particular childs allocator may hold."),
4046 AP_INIT_TAKE1("ThreadStackSize", ap_mpm_set_thread_stacksize, NULL, RSRC_CONF,
4047 "Size in bytes of stack used by threads handling client connections"),
4048 #if AP_ENABLE_EXCEPTION_HOOK
4049 AP_INIT_TAKE1("EnableExceptionHook", ap_mpm_set_exception_hook, NULL, RSRC_CONF,
4050 "Controls whether exception hook may be called after a crash"),
4052 AP_INIT_TAKE1("TraceEnable", set_trace_enable, NULL, RSRC_CONF,
4053 "'on' (default), 'off' or 'extended' to trace request body content"),
4057 /*****************************************************************
4059 * Core handlers for various phases of server operation...
4062 AP_DECLARE_NONSTD(int) ap_core_translate(request_rec *r)
4067 /* XXX this seems too specific, this should probably become
4068 * some general-case test
4071 return HTTP_FORBIDDEN;
4073 if (!r->uri || ((r->uri[0] != '/') && strcmp(r->uri, "*"))) {
4074 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00126)
4075 "Invalid URI in request %s", r->the_request);
4076 return HTTP_BAD_REQUEST;
4080 && !strncmp(r->uri, r->server->path, r->server->pathlen)
4081 && (r->server->path[r->server->pathlen - 1] == '/'
4082 || r->uri[r->server->pathlen] == '/'
4083 || r->uri[r->server->pathlen] == '\0'))
4085 path = r->uri + r->server->pathlen;
4091 * Make sure that we do not mess up the translation by adding two
4092 * /'s in a row. This happens under windows when the document
4093 * root ends with a /
4095 /* skip all leading /'s (e.g. http://localhost///foo)
4096 * so we are looking at only the relative path.
4098 while (*path == '/') {
4101 if ((rv = apr_filepath_merge(&r->filename, ap_document_root(r), path,
4102 APR_FILEPATH_TRUENAME
4103 | APR_FILEPATH_SECUREROOT, r->pool))
4105 ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(00127)
4106 "Cannot map %s to file", r->the_request);
4107 return HTTP_FORBIDDEN;
4109 r->canonical_filename = r->filename;
4114 /*****************************************************************
4116 * Test the filesystem name through directory_walk and file_walk
4118 static int core_map_to_storage(request_rec *r)
4122 if ((access_status = ap_directory_walk(r))) {
4123 return access_status;
4126 if ((access_status = ap_file_walk(r))) {
4127 return access_status;
4134 static int do_nothing(request_rec *r) { return OK; }
4137 static int core_override_type(request_rec *r)
4139 core_dir_config *conf =
4140 (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
4142 /* Check for overrides with ForceType / SetHandler
4144 if (conf->mime_type && strcmp(conf->mime_type, "none"))
4145 ap_set_content_type(r, (char*) conf->mime_type);
4147 if (conf->handler && strcmp(conf->handler, "none"))
4148 r->handler = conf->handler;
4150 /* Deal with the poor soul who is trying to force path_info to be
4151 * accepted within the core_handler, where they will let the subreq
4152 * address its contents. This is toggled by the user in the very
4153 * beginning of the fixup phase (here!), so modules should override the user's
4154 * discretion in their own module fixup phase. It is tristate, if
4155 * the user doesn't specify, the result is AP_REQ_DEFAULT_PATH_INFO.
4156 * (which the module may interpret to its own customary behavior.)
4157 * It won't be touched if the value is no longer AP_ACCEPT_PATHINFO_UNSET,
4158 * so any module changing the value prior to the fixup phase
4159 * OVERRIDES the user's choice.
4161 if ((r->used_path_info == AP_REQ_DEFAULT_PATH_INFO)
4162 && (conf->accept_path_info != AP_ACCEPT_PATHINFO_UNSET)) {
4163 /* No module knew better, and the user coded AcceptPathInfo */
4164 r->used_path_info = conf->accept_path_info;
4170 static int default_handler(request_rec *r)
4172 conn_rec *c = r->connection;
4173 apr_bucket_brigade *bb;
4177 apr_file_t *fd = NULL;
4178 apr_status_t status;
4179 /* XXX if/when somebody writes a content-md5 filter we either need to
4180 * remove this support or coordinate when to use the filter vs.
4181 * when to use this code
4182 * The current choice of when to compute the md5 here matches the 1.3
4183 * support fairly closely (unlike 1.3, we don't handle computing md5
4184 * when the charset is translated).
4186 int bld_content_md5;
4188 d = (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
4189 bld_content_md5 = (d->content_md5 == AP_CONTENT_MD5_ON)
4190 && r->output_filters->frec->ftype != AP_FTYPE_RESOURCE;
4192 ap_allow_standard_methods(r, MERGE_ALLOW, M_GET, M_OPTIONS, M_POST, -1);
4194 /* If filters intend to consume the request body, they must
4195 * register an InputFilter to slurp the contents of the POST
4196 * data from the POST input stream. It no longer exists when
4197 * the output filters are invoked by the default handler.
4199 if ((errstatus = ap_discard_request_body(r)) != OK) {
4203 if (r->method_number == M_GET || r->method_number == M_POST) {
4204 if (r->finfo.filetype == APR_NOFILE) {
4205 ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(00128)
4206 "File does not exist: %s", r->filename);
4207 return HTTP_NOT_FOUND;
4210 /* Don't try to serve a dir. Some OSs do weird things with
4213 if (r->finfo.filetype == APR_DIR) {
4214 ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(00129)
4215 "Attempt to serve directory: %s", r->filename);
4216 return HTTP_NOT_FOUND;
4219 if ((r->used_path_info != AP_REQ_ACCEPT_PATH_INFO) &&
4220 r->path_info && *r->path_info)
4222 /* default to reject */
4223 ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(00130)
4224 "File does not exist: %s",
4225 apr_pstrcat(r->pool, r->filename, r->path_info, NULL));
4226 return HTTP_NOT_FOUND;
4229 /* We understood the (non-GET) method, but it might not be legal for
4230 this particular resource. Check to see if the 'deliver_script'
4231 flag is set. If so, then we go ahead and deliver the file since
4232 it isn't really content (only GET normally returns content).
4234 Note: based on logic further above, the only possible non-GET
4235 method at this point is POST. In the future, we should enable
4236 script delivery for all methods. */
4237 if (r->method_number != M_GET) {
4238 core_request_config *req_cfg;
4240 req_cfg = ap_get_core_module_config(r->request_config);
4241 if (!req_cfg->deliver_script) {
4242 /* The flag hasn't been set for this request. Punt. */
4243 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00131)
4244 "This resource does not accept the %s method.",
4246 return HTTP_METHOD_NOT_ALLOWED;
4251 if ((status = apr_file_open(&fd, r->filename, APR_READ | APR_BINARY
4252 #if APR_HAS_SENDFILE
4253 | AP_SENDFILE_ENABLED(d->enable_sendfile)
4255 , 0, r->pool)) != APR_SUCCESS) {
4256 ap_log_rerror(APLOG_MARK, APLOG_ERR, status, r, APLOGNO(00132)
4257 "file permissions deny server access: %s", r->filename);
4258 return HTTP_FORBIDDEN;
4261 ap_update_mtime(r, r->finfo.mtime);
4262 ap_set_last_modified(r);
4264 ap_set_accept_ranges(r);
4265 ap_set_content_length(r, r->finfo.size);
4266 if (bld_content_md5) {
4267 apr_table_setn(r->headers_out, "Content-MD5",
4268 ap_md5digest(r->pool, fd));
4271 bb = apr_brigade_create(r->pool, c->bucket_alloc);
4273 if ((errstatus = ap_meets_conditions(r)) != OK) {
4275 r->status = errstatus;
4278 e = apr_brigade_insert_file(bb, fd, 0, r->finfo.size, r->pool);
4281 if (d->enable_mmap == ENABLE_MMAP_OFF) {
4282 (void)apr_bucket_file_enable_mmap(e, 0);
4287 e = apr_bucket_eos_create(c->bucket_alloc);
4288 APR_BRIGADE_INSERT_TAIL(bb, e);
4290 status = ap_pass_brigade(r->output_filters, bb);
4291 if (status == APR_SUCCESS
4292 || r->status != HTTP_OK
4297 /* no way to know what type of error occurred */
4298 ap_log_rerror(APLOG_MARK, APLOG_DEBUG, status, r, APLOGNO(00133)
4299 "default_handler: ap_pass_brigade returned %i",
4301 return HTTP_INTERNAL_SERVER_ERROR;
4304 else { /* unusual method (not GET or POST) */
4305 if (r->method_number == M_INVALID) {
4306 /* See if this looks like an undecrypted SSL handshake attempt.
4307 * It's safe to look a couple bytes into the_request if it exists, as it's
4308 * always allocated at least MIN_LINE_ALLOC (80) bytes.
4311 && r->the_request[0] == 0x16
4312 && (r->the_request[1] == 0x2 || r->the_request[1] == 0x3)) {
4313 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00134)
4314 "Invalid method in request %s - possible attempt to establish SSL connection on non-SSL port", r->the_request);
4316 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00135)
4317 "Invalid method in request %s", r->the_request);
4319 return HTTP_NOT_IMPLEMENTED;
4322 if (r->method_number == M_OPTIONS) {
4323 return ap_send_http_options(r);
4325 return HTTP_METHOD_NOT_ALLOWED;
4329 /* Optional function coming from mod_logio, used for logging of output
4332 APR_OPTIONAL_FN_TYPE(ap_logio_add_bytes_out) *ap__logio_add_bytes_out;
4333 APR_OPTIONAL_FN_TYPE(authz_some_auth_required) *ap__authz_ap_some_auth_required;
4335 /* Insist that at least one module will undertake to provide system
4336 * security by dropping startup privileges.
4338 static int sys_privileges = 0;
4339 AP_DECLARE(int) ap_sys_privileges_handlers(int inc)
4341 sys_privileges += inc;
4342 return sys_privileges;
4345 static int core_pre_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp)
4347 ap_mutex_init(pconf);
4349 if (!saved_server_config_defines)
4350 init_config_defines(pconf);
4351 apr_pool_cleanup_register(pconf, NULL, reset_config_defines,
4352 apr_pool_cleanup_null);
4354 mpm_common_pre_config(pconf);
4359 static int core_post_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)
4361 ap__logio_add_bytes_out = APR_RETRIEVE_OPTIONAL_FN(ap_logio_add_bytes_out);
4362 ident_lookup = APR_RETRIEVE_OPTIONAL_FN(ap_ident_lookup);
4363 ap__authz_ap_some_auth_required = APR_RETRIEVE_OPTIONAL_FN(authz_some_auth_required);
4364 authn_ap_auth_type = APR_RETRIEVE_OPTIONAL_FN(authn_ap_auth_type);
4365 authn_ap_auth_name = APR_RETRIEVE_OPTIONAL_FN(authn_ap_auth_name);
4366 access_compat_ap_satisfies = APR_RETRIEVE_OPTIONAL_FN(access_compat_ap_satisfies);
4369 ap_setup_make_content_type(pconf);
4370 ap_setup_auth_internal(ptemp);
4371 if (!sys_privileges) {
4372 ap_log_error(APLOG_MARK, APLOG_CRIT, 0, NULL, APLOGNO(00136)
4373 "Server MUST relinquish startup privileges before "
4374 "accepting connections. Please ensure mod_unixd "
4375 "or other system security module is loaded.");
4378 apr_pool_cleanup_register(pconf, NULL, ap_mpm_end_gen_helper,
4379 apr_pool_cleanup_null);
4383 static void core_insert_filter(request_rec *r)
4385 core_dir_config *conf = (core_dir_config *)
4386 ap_get_core_module_config(r->per_dir_config);
4387 const char *filter, *filters = conf->output_filters;
4390 while (*filters && (filter = ap_getword(r->pool, &filters, ';'))) {
4391 ap_add_output_filter(filter, NULL, r, r->connection);
4395 filters = conf->input_filters;
4397 while (*filters && (filter = ap_getword(r->pool, &filters, ';'))) {
4398 ap_add_input_filter(filter, NULL, r, r->connection);
4403 static apr_size_t num_request_notes = AP_NUM_STD_NOTES;
4405 static apr_status_t reset_request_notes(void *dummy)
4407 num_request_notes = AP_NUM_STD_NOTES;
4411 AP_DECLARE(apr_size_t) ap_register_request_note(void)
4413 apr_pool_cleanup_register(apr_hook_global_pool, NULL, reset_request_notes,
4414 apr_pool_cleanup_null);
4415 return num_request_notes++;
4418 AP_DECLARE(void **) ap_get_request_note(request_rec *r, apr_size_t note_num)
4420 core_request_config *req_cfg;
4422 if (note_num >= num_request_notes) {
4426 req_cfg = (core_request_config *)
4427 ap_get_core_module_config(r->request_config);
4433 return &(req_cfg->notes[note_num]);
4436 AP_DECLARE(apr_socket_t *) ap_get_conn_socket(conn_rec *c)
4438 return ap_get_core_module_config(c->conn_config);
4441 static int core_create_req(request_rec *r)
4443 /* Alloc the config struct and the array of request notes in
4444 * a single block for efficiency
4446 core_request_config *req_cfg;
4448 req_cfg = apr_pcalloc(r->pool, sizeof(core_request_config) +
4449 sizeof(void *) * num_request_notes);
4450 req_cfg->notes = (void **)((char *)req_cfg + sizeof(core_request_config));
4452 /* ### temporarily enable script delivery as the default */
4453 req_cfg->deliver_script = 1;
4456 core_request_config *main_req_cfg = (core_request_config *)
4457 ap_get_core_module_config(r->main->request_config);
4458 req_cfg->bb = main_req_cfg->bb;
4461 req_cfg->bb = apr_brigade_create(r->pool, r->connection->bucket_alloc);
4464 ap_set_core_module_config(r->request_config, req_cfg);
4469 static int core_create_proxy_req(request_rec *r, request_rec *pr)
4471 return core_create_req(pr);
4474 static conn_rec *core_create_conn(apr_pool_t *ptrans, server_rec *server,
4475 apr_socket_t *csd, long id, void *sbh,
4476 apr_bucket_alloc_t *alloc)
4479 conn_rec *c = (conn_rec *) apr_pcalloc(ptrans, sizeof(conn_rec));
4482 (void)ap_update_child_status(c->sbh, SERVER_BUSY_READ, (request_rec *)NULL);
4484 /* Got a connection structure, so initialize what fields we can
4485 * (the rest are zeroed out by pcalloc).
4487 c->conn_config = ap_create_conn_config(ptrans);
4488 c->notes = apr_table_make(ptrans, 5);
4491 if ((rv = apr_socket_addr_get(&c->local_addr, APR_LOCAL, csd))
4493 ap_log_error(APLOG_MARK, APLOG_INFO, rv, server, APLOGNO(00137)
4494 "apr_socket_addr_get(APR_LOCAL)");
4495 apr_socket_close(csd);
4499 apr_sockaddr_ip_get(&c->local_ip, c->local_addr);
4500 if ((rv = apr_socket_addr_get(&c->client_addr, APR_REMOTE, csd))
4502 ap_log_error(APLOG_MARK, APLOG_INFO, rv, server, APLOGNO(00138)
4503 "apr_socket_addr_get(APR_REMOTE)");
4504 apr_socket_close(csd);
4508 apr_sockaddr_ip_get(&c->client_ip, c->client_addr);
4509 c->base_server = server;
4512 c->bucket_alloc = alloc;
4514 c->clogging_input_filters = 0;
4519 static int core_pre_connection(conn_rec *c, void *csd)
4521 core_net_rec *net = apr_palloc(c->pool, sizeof(*net));
4524 /* The Nagle algorithm says that we should delay sending partial
4525 * packets in hopes of getting more data. We don't want to do
4526 * this; we are not telnet. There are bad interactions between
4527 * persistent connections and Nagle's algorithm that have very severe
4528 * performance penalties. (Failing to disable Nagle is not much of a
4529 * problem with simple HTTP.)
4531 rv = apr_socket_opt_set(csd, APR_TCP_NODELAY, 1);
4532 if (rv != APR_SUCCESS && rv != APR_ENOTIMPL) {
4533 /* expected cause is that the client disconnected already,
4534 * hence the debug level
4536 ap_log_cerror(APLOG_MARK, APLOG_DEBUG, rv, c, APLOGNO(00139)
4537 "apr_socket_opt_set(APR_TCP_NODELAY)");
4540 /* The core filter requires the timeout mode to be set, which
4541 * incidentally sets the socket to be nonblocking. If this
4542 * is not initialized correctly, Linux - for example - will
4543 * be initially blocking, while Solaris will be non blocking
4544 * and any initial read will fail.
4546 rv = apr_socket_timeout_set(csd, c->base_server->timeout);
4547 if (rv != APR_SUCCESS) {
4548 /* expected cause is that the client disconnected already */
4549 ap_log_cerror(APLOG_MARK, APLOG_DEBUG, rv, c, APLOGNO(00140)
4550 "apr_socket_timeout_set");
4555 net->out_ctx = NULL;
4556 net->client_socket = csd;
4558 ap_set_core_module_config(net->c->conn_config, csd);
4559 ap_add_input_filter_handle(ap_core_input_filter_handle, net, NULL, net->c);
4560 ap_add_output_filter_handle(ap_core_output_filter_handle, net, NULL, net->c);
4564 AP_DECLARE(int) ap_state_query(int query)
4567 case AP_SQ_MAIN_STATE:
4568 return ap_main_state;
4569 case AP_SQ_RUN_MODE:
4571 case AP_SQ_CONFIG_GEN:
4572 return ap_config_generation;
4574 return AP_SQ_NOT_SUPPORTED;
4578 static apr_random_t *rng = NULL;
4580 static apr_thread_mutex_t *rng_mutex = NULL;
4583 static void core_child_init(apr_pool_t *pchild, server_rec *s)
4588 if (ap_mpm_query(AP_MPMQ_IS_THREADED, &threaded_mpm) == APR_SUCCESS
4591 apr_thread_mutex_create(&rng_mutex, APR_THREAD_MUTEX_DEFAULT, pchild);
4594 /* The MPMs use plain fork() and not apr_proc_fork(), so we have to call
4595 * apr_random_after_fork() manually in the child
4597 proc.pid = getpid();
4598 apr_random_after_fork(&proc);
4601 AP_CORE_DECLARE(void) ap_random_parent_after_fork(void)
4604 * To ensure that the RNG state in the parent changes after the fork, we
4605 * pull some data from the RNG and discard it. This ensures that the RNG
4606 * states in the children are different even after the pid wraps around.
4607 * As we only use apr_random for insecure random bytes, pulling 2 bytes
4609 * XXX: APR should probably have some dedicated API to do this, but it
4610 * XXX: currently doesn't.
4613 apr_random_insecure_bytes(rng, &data, sizeof(data));
4616 AP_CORE_DECLARE(void) ap_init_rng(apr_pool_t *p)
4618 unsigned char seed[8];
4620 rng = apr_random_standard_new(p);
4622 rv = apr_generate_random_bytes(seed, sizeof(seed));
4623 if (rv != APR_SUCCESS)
4625 apr_random_add_entropy(rng, seed, sizeof(seed));
4626 rv = apr_random_insecure_ready(rng);
4627 } while (rv == APR_ENOTENOUGHENTROPY);
4628 if (rv == APR_SUCCESS)
4631 ap_log_error(APLOG_MARK, APLOG_CRIT, rv, NULL, APLOGNO(00141)
4632 "Could not initialize random number generator");
4636 AP_DECLARE(void) ap_random_insecure_bytes(void *buf, apr_size_t size)
4640 apr_thread_mutex_lock(rng_mutex);
4642 /* apr_random_insecure_bytes can only fail with APR_ENOTENOUGHENTROPY,
4643 * and we have ruled that out during initialization. Therefore we don't
4644 * need to check the return code.
4646 apr_random_insecure_bytes(rng, buf, size);
4649 apr_thread_mutex_unlock(rng_mutex);
4654 * Finding a random number in a range.
4655 * n' = a + n(b-a+1)/(M+1)
4657 * n' = random number in range
4658 * a = low end of range
4659 * b = high end of range
4660 * n = random number of 0..M
4662 * Algorithm 'borrowed' from PHP's rand() function.
4664 #define RAND_RANGE(__n, __min, __max, __tmax) \
4665 (__n) = (__min) + (long) ((double) ((__max) - (__min) + 1.0) * ((__n) / ((__tmax) + 1.0)))
4666 AP_DECLARE(apr_uint32_t) ap_random_pick(apr_uint32_t min, apr_uint32_t max)
4668 apr_uint32_t number;
4671 ap_random_insecure_bytes(&num16, sizeof(num16));
4672 RAND_RANGE(num16, min, max, APR_UINT16_MAX);
4676 ap_random_insecure_bytes(&number, sizeof(number));
4677 RAND_RANGE(number, min, max, APR_UINT32_MAX);
4682 static void core_dump_config(apr_pool_t *p, server_rec *s)
4684 core_server_config *sconf = ap_get_core_module_config(s->module_config);
4685 apr_file_t *out = NULL;
4687 const char **defines;
4689 if (!ap_exists_config_define("DUMP_RUN_CFG"))
4692 apr_file_open_stdout(&out, p);
4693 apr_file_printf(out, "ServerRoot: \"%s\"\n", ap_server_root);
4694 tmp = ap_server_root_relative(p, sconf->ap_document_root);
4695 apr_file_printf(out, "Main DocumentRoot: \"%s\"\n", tmp);
4696 if (s->error_fname[0] != '|' && strcmp(s->error_fname, "syslog") != 0)
4697 tmp = ap_server_root_relative(p, s->error_fname);
4699 tmp = s->error_fname;
4700 apr_file_printf(out, "Main ErrorLog: \"%s\"\n", tmp);
4701 if (ap_scoreboard_fname) {
4702 tmp = ap_server_root_relative(p, ap_scoreboard_fname);
4703 apr_file_printf(out, "ScoreBoardFile: \"%s\"\n", tmp);
4705 ap_dump_mutexes(p, s, out);
4706 ap_mpm_dump_pidfile(p, out);
4708 defines = (const char **)ap_server_config_defines->elts;
4709 for (i = 0; i < ap_server_config_defines->nelts; i++) {
4710 const char *name = defines[i];
4711 const char *val = NULL;
4712 if (server_config_defined_vars)
4713 val = apr_table_get(server_config_defined_vars, name);
4715 apr_file_printf(out, "Define: %s=%s\n", name, val);
4717 apr_file_printf(out, "Define: %s\n", name);
4721 static void register_hooks(apr_pool_t *p)
4723 errorlog_hash = apr_hash_make(p);
4724 ap_register_log_hooks(p);
4725 ap_register_config_hooks(p);
4728 /* create_connection and pre_connection should always be hooked
4729 * APR_HOOK_REALLY_LAST by core to give other modules the opportunity
4730 * to install alternate network transports and stop other functions
4733 ap_hook_create_connection(core_create_conn, NULL, NULL,
4734 APR_HOOK_REALLY_LAST);
4735 ap_hook_pre_connection(core_pre_connection, NULL, NULL,
4736 APR_HOOK_REALLY_LAST);
4738 ap_hook_pre_config(core_pre_config, NULL, NULL, APR_HOOK_REALLY_FIRST);
4739 ap_hook_post_config(core_post_config,NULL,NULL,APR_HOOK_REALLY_FIRST);
4740 ap_hook_test_config(core_dump_config,NULL,NULL,APR_HOOK_FIRST);
4741 ap_hook_translate_name(ap_core_translate,NULL,NULL,APR_HOOK_REALLY_LAST);
4742 ap_hook_map_to_storage(core_map_to_storage,NULL,NULL,APR_HOOK_REALLY_LAST);
4743 ap_hook_open_logs(ap_open_logs,NULL,NULL,APR_HOOK_REALLY_FIRST);
4744 ap_hook_child_init(core_child_init,NULL,NULL,APR_HOOK_REALLY_FIRST);
4745 ap_hook_child_init(ap_logs_child_init,NULL,NULL,APR_HOOK_MIDDLE);
4746 ap_hook_handler(default_handler,NULL,NULL,APR_HOOK_REALLY_LAST);
4747 /* FIXME: I suspect we can eliminate the need for these do_nothings - Ben */
4748 ap_hook_type_checker(do_nothing,NULL,NULL,APR_HOOK_REALLY_LAST);
4749 ap_hook_fixups(core_override_type,NULL,NULL,APR_HOOK_REALLY_FIRST);
4750 ap_hook_create_request(core_create_req, NULL, NULL, APR_HOOK_MIDDLE);
4751 APR_OPTIONAL_HOOK(proxy, create_req, core_create_proxy_req, NULL, NULL,
4753 ap_hook_pre_mpm(ap_create_scoreboard, NULL, NULL, APR_HOOK_MIDDLE);
4754 ap_hook_child_status(ap_core_child_status, NULL, NULL, APR_HOOK_MIDDLE);
4756 /* register the core's insert_filter hook and register core-provided
4759 ap_hook_insert_filter(core_insert_filter, NULL, NULL, APR_HOOK_MIDDLE);
4761 ap_core_input_filter_handle =
4762 ap_register_input_filter("CORE_IN", ap_core_input_filter,
4763 NULL, AP_FTYPE_NETWORK);
4764 ap_content_length_filter_handle =
4765 ap_register_output_filter("CONTENT_LENGTH", ap_content_length_filter,
4766 NULL, AP_FTYPE_PROTOCOL);
4767 ap_core_output_filter_handle =
4768 ap_register_output_filter("CORE", ap_core_output_filter,
4769 NULL, AP_FTYPE_NETWORK);
4770 ap_subreq_core_filter_handle =
4771 ap_register_output_filter("SUBREQ_CORE", ap_sub_req_output_filter,
4772 NULL, AP_FTYPE_CONTENT_SET);
4774 ap_register_output_filter("OLD_WRITE", ap_old_write_filter,
4775 NULL, AP_FTYPE_RESOURCE - 10);
4778 AP_DECLARE_MODULE(core) = {
4780 AP_PLATFORM_REWRITE_ARGS_HOOK, /* hook to run before apache parses args */
4781 create_core_dir_config, /* create per-directory config structure */
4782 merge_core_dir_configs, /* merge per-directory config structures */
4783 create_core_server_config, /* create per-server config structure */
4784 merge_core_server_configs, /* merge per-server config structures */
4785 core_cmds, /* command apr_table_t */
4786 register_hooks /* register hooks */