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 ((apr_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)
85 APR_HOOK_LINK(insert_network_bucket)
88 AP_IMPLEMENT_HOOK_RUN_ALL(int, get_mgmt_items,
89 (apr_pool_t *p, const char *val, apr_hash_t *ht),
90 (p, val, ht), OK, DECLINED)
92 AP_IMPLEMENT_HOOK_RUN_FIRST(apr_status_t, insert_network_bucket,
93 (conn_rec *c, apr_bucket_brigade *bb,
94 apr_socket_t *socket),
95 (c, bb, socket), AP_DECLINED)
97 /* Server core module... This module provides support for really basic
98 * server operations, including options and commands which control the
99 * operation of other modules. Consider this the bureaucracy module.
101 * The core module also defines handlers, etc., to handle just enough
102 * to allow a server with the core module ONLY to actually serve documents.
104 * This file could almost be mod_core.c, except for the stuff which affects
105 * the http_conf_globals.
108 /* we know core's module_index is 0 */
109 #undef APLOG_MODULE_INDEX
110 #define APLOG_MODULE_INDEX AP_CORE_MODULE_INDEX
112 /* Handles for core filters */
113 AP_DECLARE_DATA ap_filter_rec_t *ap_subreq_core_filter_handle;
114 AP_DECLARE_DATA ap_filter_rec_t *ap_core_output_filter_handle;
115 AP_DECLARE_DATA ap_filter_rec_t *ap_content_length_filter_handle;
116 AP_DECLARE_DATA ap_filter_rec_t *ap_core_input_filter_handle;
118 /* Provide ap_document_root_check storage and default value = true */
119 AP_DECLARE_DATA int ap_document_root_check = 1;
121 /* magic pointer for ErrorDocument xxx "default" */
122 static char errordocument_default;
124 static apr_array_header_t *saved_server_config_defines = NULL;
125 static apr_table_t *server_config_defined_vars = NULL;
127 AP_DECLARE_DATA int ap_main_state = AP_SQ_MS_INITIAL_STARTUP;
128 AP_DECLARE_DATA int ap_run_mode = AP_SQ_RM_UNKNOWN;
129 AP_DECLARE_DATA int ap_config_generation = 0;
132 apr_ipsubnet_t *subnet;
133 struct ap_logconf log;
136 static void *create_core_dir_config(apr_pool_t *a, char *dir)
138 core_dir_config *conf;
140 conf = (core_dir_config *)apr_pcalloc(a, sizeof(core_dir_config));
142 /* conf->r and conf->d[_*] are initialized by dirsection() or left NULL */
144 conf->opts = dir ? OPT_UNSET : OPT_UNSET|OPT_SYM_LINKS;
145 conf->opts_add = conf->opts_remove = OPT_NONE;
146 conf->override = OR_UNSET|OR_NONE;
147 conf->override_opts = OPT_UNSET | OPT_ALL | OPT_SYM_OWNER | OPT_MULTI;
149 conf->content_md5 = AP_CONTENT_MD5_UNSET;
150 conf->accept_path_info = AP_ACCEPT_PATHINFO_UNSET;
152 conf->use_canonical_name = USE_CANONICAL_NAME_UNSET;
153 conf->use_canonical_phys_port = USE_CANONICAL_PHYS_PORT_UNSET;
155 conf->hostname_lookups = HOSTNAME_LOOKUP_UNSET;
158 * left as NULL (we use apr_pcalloc):
159 * conf->limit_cpu = NULL;
160 * conf->limit_mem = NULL;
161 * conf->limit_nproc = NULL;
162 * conf->sec_file = NULL;
163 * conf->sec_if = NULL;
166 conf->limit_req_body = AP_LIMIT_REQ_BODY_UNSET;
167 conf->limit_xml_body = AP_LIMIT_UNSET;
169 conf->server_signature = srv_sig_unset;
171 conf->add_default_charset = ADD_DEFAULT_CHARSET_UNSET;
172 conf->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME;
174 /* Overriding all negotiation
175 * Set NULL by apr_pcalloc:
176 * conf->mime_type = NULL;
177 * conf->handler = NULL;
178 * conf->output_filters = NULL;
179 * conf->input_filters = NULL;
183 * Flag for use of inodes in ETags.
185 conf->etag_bits = ETAG_UNSET;
186 conf->etag_add = ETAG_UNSET;
187 conf->etag_remove = ETAG_UNSET;
189 conf->enable_mmap = ENABLE_MMAP_UNSET;
190 conf->enable_sendfile = ENABLE_SENDFILE_UNSET;
191 conf->allow_encoded_slashes = 0;
192 conf->decode_encoded_slashes = 0;
194 conf->max_ranges = AP_MAXRANGES_UNSET;
195 conf->max_overlaps = AP_MAXRANGES_UNSET;
196 conf->max_reversals = AP_MAXRANGES_UNSET;
201 static void *merge_core_dir_configs(apr_pool_t *a, void *basev, void *newv)
203 core_dir_config *base = (core_dir_config *)basev;
204 core_dir_config *new = (core_dir_config *)newv;
205 core_dir_config *conf;
208 /* Create this conf by duplicating the base, replacing elements
209 * (or creating copies for merging) where new-> values exist.
211 conf = (core_dir_config *)apr_pmemdup(a, base, sizeof(core_dir_config));
214 conf->d_is_fnmatch = new->d_is_fnmatch;
215 conf->d_components = new->d_components;
217 conf->condition = new->condition;
219 if (new->opts & OPT_UNSET) {
220 /* there was no explicit setting of new->opts, so we merge
221 * preserve the invariant (opts_add & opts_remove) == 0
223 conf->opts_add = (conf->opts_add & ~new->opts_remove) | new->opts_add;
224 conf->opts_remove = (conf->opts_remove & ~new->opts_add)
226 conf->opts = (conf->opts & ~conf->opts_remove) | conf->opts_add;
228 /* If Includes was enabled with exec in the base config, but
229 * was enabled without exec in the new config, then disable
230 * exec in the merged set. */
231 if (((base->opts & (OPT_INCLUDES|OPT_INC_WITH_EXEC))
232 == (OPT_INCLUDES|OPT_INC_WITH_EXEC))
233 && ((new->opts & (OPT_INCLUDES|OPT_INC_WITH_EXEC))
235 conf->opts &= ~OPT_INC_WITH_EXEC;
239 /* otherwise we just copy, because an explicit opts setting
240 * overrides all earlier +/- modifiers
242 conf->opts = new->opts;
243 conf->opts_add = new->opts_add;
244 conf->opts_remove = new->opts_remove;
247 if (!(new->override & OR_UNSET)) {
248 conf->override = new->override;
251 if (!(new->override_opts & OPT_UNSET)) {
252 conf->override_opts = new->override_opts;
255 if (new->override_list != NULL) {
256 conf->override_list = new->override_list;
259 if (conf->response_code_strings == NULL) {
260 conf->response_code_strings = new->response_code_strings;
262 else if (new->response_code_strings != NULL) {
263 /* If we merge, the merge-result must have its own array
265 conf->response_code_strings = apr_pmemdup(a,
266 base->response_code_strings,
267 sizeof(*conf->response_code_strings) * RESPONSE_CODES);
269 for (i = 0; i < RESPONSE_CODES; ++i) {
270 if (new->response_code_strings[i] != NULL) {
271 conf->response_code_strings[i] = new->response_code_strings[i];
275 /* Otherwise we simply use the base->response_code_strings array
278 if (new->hostname_lookups != HOSTNAME_LOOKUP_UNSET) {
279 conf->hostname_lookups = new->hostname_lookups;
282 if (new->content_md5 != AP_CONTENT_MD5_UNSET) {
283 conf->content_md5 = new->content_md5;
286 if (new->accept_path_info != AP_ACCEPT_PATHINFO_UNSET) {
287 conf->accept_path_info = new->accept_path_info;
290 if (new->use_canonical_name != USE_CANONICAL_NAME_UNSET) {
291 conf->use_canonical_name = new->use_canonical_name;
294 if (new->use_canonical_phys_port != USE_CANONICAL_PHYS_PORT_UNSET) {
295 conf->use_canonical_phys_port = new->use_canonical_phys_port;
299 if (new->limit_cpu) {
300 conf->limit_cpu = new->limit_cpu;
304 #if defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined(RLIMIT_AS)
305 if (new->limit_mem) {
306 conf->limit_mem = new->limit_mem;
311 if (new->limit_nproc) {
312 conf->limit_nproc = new->limit_nproc;
316 if (new->limit_req_body != AP_LIMIT_REQ_BODY_UNSET) {
317 conf->limit_req_body = new->limit_req_body;
320 if (new->limit_xml_body != AP_LIMIT_UNSET)
321 conf->limit_xml_body = new->limit_xml_body;
323 if (!conf->sec_file) {
324 conf->sec_file = new->sec_file;
326 else if (new->sec_file) {
327 /* If we merge, the merge-result must have its own array
329 conf->sec_file = apr_array_append(a, base->sec_file, new->sec_file);
331 /* Otherwise we simply use the base->sec_file array
335 conf->sec_if = new->sec_if;
337 else if (new->sec_if) {
338 /* If we merge, the merge-result must have its own array
340 conf->sec_if = apr_array_append(a, base->sec_if, new->sec_if);
342 /* Otherwise we simply use the base->sec_if array
345 if (new->server_signature != srv_sig_unset) {
346 conf->server_signature = new->server_signature;
349 if (new->add_default_charset != ADD_DEFAULT_CHARSET_UNSET) {
350 conf->add_default_charset = new->add_default_charset;
351 conf->add_default_charset_name = new->add_default_charset_name;
354 /* Overriding all negotiation
356 if (new->mime_type) {
357 conf->mime_type = new->mime_type;
361 conf->handler = new->handler;
364 if (new->output_filters) {
365 conf->output_filters = new->output_filters;
368 if (new->input_filters) {
369 conf->input_filters = new->input_filters;
373 * Now merge the setting of the FileETag directive.
375 if (new->etag_bits == ETAG_UNSET) {
377 (conf->etag_add & (~ new->etag_remove)) | new->etag_add;
379 (conf->etag_remove & (~ new->etag_add)) | new->etag_remove;
381 (conf->etag_bits & (~ conf->etag_remove)) | conf->etag_add;
384 conf->etag_bits = new->etag_bits;
385 conf->etag_add = new->etag_add;
386 conf->etag_remove = new->etag_remove;
389 if (conf->etag_bits != ETAG_NONE) {
390 conf->etag_bits &= (~ ETAG_NONE);
393 if (new->enable_mmap != ENABLE_MMAP_UNSET) {
394 conf->enable_mmap = new->enable_mmap;
397 if (new->enable_sendfile != ENABLE_SENDFILE_UNSET) {
398 conf->enable_sendfile = new->enable_sendfile;
401 if (new->allow_encoded_slashes_set) {
402 conf->allow_encoded_slashes = new->allow_encoded_slashes;
404 if (new->decode_encoded_slashes_set) {
405 conf->decode_encoded_slashes = new->decode_encoded_slashes;
410 conf->log = new->log;
413 conf->log = ap_new_log_config(a, new->log);
414 ap_merge_log_config(base->log, conf->log);
418 conf->max_ranges = new->max_ranges != AP_MAXRANGES_UNSET ? new->max_ranges : base->max_ranges;
419 conf->max_overlaps = new->max_overlaps != AP_MAXRANGES_UNSET ? new->max_overlaps : base->max_overlaps;
420 conf->max_reversals = new->max_reversals != AP_MAXRANGES_UNSET ? new->max_reversals : base->max_reversals;
425 #if APR_HAS_SO_ACCEPTFILTER
426 #ifndef ACCEPT_FILTER_NAME
427 #define ACCEPT_FILTER_NAME "httpready"
428 #ifdef __FreeBSD_version
429 #if __FreeBSD_version < 411000 /* httpready broken before 4.1.1 */
430 #undef ACCEPT_FILTER_NAME
431 #define ACCEPT_FILTER_NAME "dataready"
437 static void *create_core_server_config(apr_pool_t *a, server_rec *s)
439 core_server_config *conf;
440 int is_virtual = s->is_virtual;
442 conf = (core_server_config *)apr_pcalloc(a, sizeof(core_server_config));
444 /* global-default / global-only settings */
447 conf->ap_document_root = DOCUMENT_LOCATION;
448 conf->access_name = DEFAULT_ACCESS_FNAME;
450 /* A mapping only makes sense in the global context */
451 conf->accf_map = apr_table_make(a, 5);
452 #if APR_HAS_SO_ACCEPTFILTER
453 apr_table_setn(conf->accf_map, "http", ACCEPT_FILTER_NAME);
454 apr_table_setn(conf->accf_map, "https", "dataready");
456 apr_table_setn(conf->accf_map, "http", "data");
457 apr_table_setn(conf->accf_map, "https", "data");
460 /* pcalloc'ed - we have NULL's/0's
461 else ** is_virtual ** {
462 conf->ap_document_root = NULL;
463 conf->access_name = NULL;
464 conf->accf_map = NULL;
468 /* initialization, no special case for global context */
470 conf->sec_dir = apr_array_make(a, 40, sizeof(ap_conf_vector_t *));
471 conf->sec_url = apr_array_make(a, 40, sizeof(ap_conf_vector_t *));
473 /* pcalloc'ed - we have NULL's/0's
474 conf->gprof_dir = NULL;
476 ** recursion stopper; 0 == unset
477 conf->redirect_limit = 0;
478 conf->subreq_limit = 0;
480 conf->protocol = NULL;
483 conf->trace_enable = AP_TRACE_UNSET;
488 static void *merge_core_server_configs(apr_pool_t *p, void *basev, void *virtv)
490 core_server_config *base = (core_server_config *)basev;
491 core_server_config *virt = (core_server_config *)virtv;
492 core_server_config *conf = (core_server_config *)
493 apr_pmemdup(p, base, sizeof(core_server_config));
495 if (virt->ap_document_root)
496 conf->ap_document_root = virt->ap_document_root;
498 if (virt->access_name)
499 conf->access_name = virt->access_name;
501 /* XXX optimize to keep base->sec_ pointers if virt->sec_ array is empty */
502 conf->sec_dir = apr_array_append(p, base->sec_dir, virt->sec_dir);
503 conf->sec_url = apr_array_append(p, base->sec_url, virt->sec_url);
505 if (virt->redirect_limit)
506 conf->redirect_limit = virt->redirect_limit;
508 if (virt->subreq_limit)
509 conf->subreq_limit = virt->subreq_limit;
511 if (virt->trace_enable != AP_TRACE_UNSET)
512 conf->trace_enable = virt->trace_enable;
514 if (virt->http09_enable != AP_HTTP09_UNSET)
515 conf->http09_enable = virt->http09_enable;
517 if (virt->http_conformance != AP_HTTP_CONFORMANCE_UNSET)
518 conf->http_conformance = virt->http_conformance;
520 /* no action for virt->accf_map, not allowed per-vhost */
523 conf->protocol = virt->protocol;
526 conf->gprof_dir = virt->gprof_dir;
528 if (virt->error_log_format)
529 conf->error_log_format = virt->error_log_format;
531 if (virt->error_log_conn)
532 conf->error_log_conn = virt->error_log_conn;
534 if (virt->error_log_req)
535 conf->error_log_req = virt->error_log_req;
537 if (virt->conn_log_level) {
538 if (!conf->conn_log_level) {
539 conf->conn_log_level = virt->conn_log_level;
542 /* apr_array_append actually creates a new array */
543 conf->conn_log_level = apr_array_append(p, conf->conn_log_level,
544 virt->conn_log_level);
551 /* Add per-directory configuration entry (for <directory> section);
552 * these are part of the core server config.
555 AP_CORE_DECLARE(void) ap_add_per_dir_conf(server_rec *s, void *dir_config)
557 core_server_config *sconf = ap_get_core_module_config(s->module_config);
558 void **new_space = (void **)apr_array_push(sconf->sec_dir);
560 *new_space = dir_config;
563 AP_CORE_DECLARE(void) ap_add_per_url_conf(server_rec *s, void *url_config)
565 core_server_config *sconf = ap_get_core_module_config(s->module_config);
566 void **new_space = (void **)apr_array_push(sconf->sec_url);
568 *new_space = url_config;
571 AP_CORE_DECLARE(void) ap_add_file_conf(apr_pool_t *p, core_dir_config *conf,
577 conf->sec_file = apr_array_make(p, 2, sizeof(ap_conf_vector_t *));
579 new_space = (void **)apr_array_push(conf->sec_file);
580 *new_space = url_config;
583 AP_CORE_DECLARE(const char *) ap_add_if_conf(apr_pool_t *p,
584 core_dir_config *conf,
588 core_dir_config *new = ap_get_module_config(if_config, &core_module);
591 conf->sec_if = apr_array_make(p, 2, sizeof(ap_conf_vector_t *));
593 if (new->condition_ifelse & AP_CONDITION_ELSE) {
595 if (conf->sec_if->nelts > 0) {
596 core_dir_config *last;
597 ap_conf_vector_t *lastelt = APR_ARRAY_IDX(conf->sec_if,
598 conf->sec_if->nelts - 1,
600 last = ap_get_module_config(lastelt, &core_module);
601 if (last->condition_ifelse & AP_CONDITION_IF)
605 return "<Else> or <ElseIf> section without previous <If> or "
606 "<ElseIf> section in same scope";
609 new_space = (void **)apr_array_push(conf->sec_if);
610 *new_space = if_config;
615 /* We need to do a stable sort, qsort isn't stable. So to make it stable
616 * we'll be maintaining the original index into the list, and using it
617 * as the minor key during sorting. The major key is the number of
618 * components (where the root component is zero).
620 struct reorder_sort_rec {
621 ap_conf_vector_t *elt;
625 static int reorder_sorter(const void *va, const void *vb)
627 const struct reorder_sort_rec *a = va;
628 const struct reorder_sort_rec *b = vb;
629 core_dir_config *core_a;
630 core_dir_config *core_b;
632 core_a = ap_get_core_module_config(a->elt);
633 core_b = ap_get_core_module_config(b->elt);
635 /* a regex always sorts after a non-regex
637 if (!core_a->r && core_b->r) {
640 else if (core_a->r && !core_b->r) {
644 /* we always sort next by the number of components
646 if (core_a->d_components < core_b->d_components) {
649 else if (core_a->d_components > core_b->d_components) {
653 /* They have the same number of components, we now have to compare
654 * the minor key to maintain the original order (from the config.)
656 return a->orig_index - b->orig_index;
659 void ap_core_reorder_directories(apr_pool_t *p, server_rec *s)
661 core_server_config *sconf;
662 apr_array_header_t *sec_dir;
663 struct reorder_sort_rec *sortbin;
665 ap_conf_vector_t **elts;
669 sconf = ap_get_core_module_config(s->module_config);
670 sec_dir = sconf->sec_dir;
671 nelts = sec_dir->nelts;
672 elts = (ap_conf_vector_t **)sec_dir->elts;
675 /* simple case of already being sorted... */
676 /* We're not checking this condition to be fast... we're checking
677 * it to avoid trying to palloc zero bytes, which can trigger some
678 * memory debuggers to barf
683 /* we have to allocate tmp space to do a stable sort */
684 apr_pool_create(&tmp, p);
685 sortbin = apr_palloc(tmp, sec_dir->nelts * sizeof(*sortbin));
686 for (i = 0; i < nelts; ++i) {
687 sortbin[i].orig_index = i;
688 sortbin[i].elt = elts[i];
691 qsort(sortbin, nelts, sizeof(*sortbin), reorder_sorter);
693 /* and now copy back to the original array */
694 for (i = 0; i < nelts; ++i) {
695 elts[i] = sortbin[i].elt;
698 apr_pool_destroy(tmp);
701 /*****************************************************************
703 * There are some elements of the core config structures in which
704 * other modules have a legitimate interest (this is ugly, but necessary
705 * to preserve NCSA back-compatibility). So, we have a bunch of accessors
709 AP_DECLARE(int) ap_allow_options(request_rec *r)
711 core_dir_config *conf =
712 (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
717 AP_DECLARE(int) ap_allow_overrides(request_rec *r)
719 core_dir_config *conf;
720 conf = (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
722 return conf->override;
726 * Optional function coming from mod_authn_core, used for
727 * retrieving the type of autorization
729 static APR_OPTIONAL_FN_TYPE(authn_ap_auth_type) *authn_ap_auth_type;
731 AP_DECLARE(const char *) ap_auth_type(request_rec *r)
733 if (authn_ap_auth_type) {
734 return authn_ap_auth_type(r);
740 * Optional function coming from mod_authn_core, used for
741 * retrieving the authorization realm
743 static APR_OPTIONAL_FN_TYPE(authn_ap_auth_name) *authn_ap_auth_name;
745 AP_DECLARE(const char *) ap_auth_name(request_rec *r)
747 if (authn_ap_auth_name) {
748 return authn_ap_auth_name(r);
754 * Optional function coming from mod_access_compat, used to determine how
755 access control interacts with authentication/authorization
757 static APR_OPTIONAL_FN_TYPE(access_compat_ap_satisfies) *access_compat_ap_satisfies;
759 AP_DECLARE(int) ap_satisfies(request_rec *r)
761 if (access_compat_ap_satisfies) {
762 return access_compat_ap_satisfies(r);
764 return SATISFY_NOSPEC;
767 AP_DECLARE(const char *) ap_document_root(request_rec *r) /* Don't use this! */
769 core_server_config *sconf;
770 core_request_config *rconf = ap_get_core_module_config(r->request_config);
771 if (rconf->document_root)
772 return rconf->document_root;
773 sconf = ap_get_core_module_config(r->server->module_config);
774 return sconf->ap_document_root;
777 AP_DECLARE(const char *) ap_context_prefix(request_rec *r)
779 core_request_config *conf = ap_get_core_module_config(r->request_config);
780 if (conf->context_prefix)
781 return conf->context_prefix;
786 AP_DECLARE(const char *) ap_context_document_root(request_rec *r)
788 core_request_config *conf = ap_get_core_module_config(r->request_config);
789 if (conf->context_document_root)
790 return conf->context_document_root;
792 return ap_document_root(r);
795 AP_DECLARE(void) ap_set_document_root(request_rec *r, const char *document_root)
797 core_request_config *conf = ap_get_core_module_config(r->request_config);
798 conf->document_root = document_root;
801 AP_DECLARE(void) ap_set_context_info(request_rec *r, const char *context_prefix,
802 const char *context_document_root)
804 core_request_config *conf = ap_get_core_module_config(r->request_config);
806 conf->context_prefix = context_prefix;
807 if (context_document_root)
808 conf->context_document_root = context_document_root;
811 /* Should probably just get rid of this... the only code that cares is
812 * part of the core anyway (and in fact, it isn't publicised to other
816 char *ap_response_code_string(request_rec *r, int error_index)
818 core_dir_config *dirconf;
819 core_request_config *reqconf = ap_get_core_module_config(r->request_config);
821 /* check for string registered via ap_custom_response() first */
822 if (reqconf->response_code_strings != NULL &&
823 reqconf->response_code_strings[error_index] != NULL) {
824 return reqconf->response_code_strings[error_index];
827 /* check for string specified via ErrorDocument */
828 dirconf = ap_get_core_module_config(r->per_dir_config);
830 if (dirconf->response_code_strings == NULL) {
834 if (dirconf->response_code_strings[error_index] == &errordocument_default) {
838 return dirconf->response_code_strings[error_index];
842 /* Code from Harald Hanche-Olsen <hanche@imf.unit.no> */
843 static APR_INLINE void do_double_reverse (conn_rec *conn)
848 if (conn->double_reverse) {
853 if (conn->remote_host == NULL || conn->remote_host[0] == '\0') {
854 /* single reverse failed, so don't bother */
855 conn->double_reverse = -1;
859 rv = apr_sockaddr_info_get(&sa, conn->remote_host, APR_UNSPEC, 0, 0, conn->pool);
860 if (rv == APR_SUCCESS) {
862 if (apr_sockaddr_equal(sa, conn->client_addr)) {
863 conn->double_reverse = 1;
871 conn->double_reverse = -1;
874 AP_DECLARE(const char *) ap_get_remote_host(conn_rec *conn, void *dir_config,
875 int type, int *str_is_ip)
877 int hostname_lookups;
878 int ignored_str_is_ip;
880 if (!str_is_ip) { /* caller doesn't want to know */
881 str_is_ip = &ignored_str_is_ip;
885 /* If we haven't checked the host name, and we want to */
887 hostname_lookups = ((core_dir_config *)ap_get_core_module_config(dir_config))
890 if (hostname_lookups == HOSTNAME_LOOKUP_UNSET) {
891 hostname_lookups = HOSTNAME_LOOKUP_OFF;
896 hostname_lookups = HOSTNAME_LOOKUP_OFF;
899 if (type != REMOTE_NOLOOKUP
900 && conn->remote_host == NULL
901 && (type == REMOTE_DOUBLE_REV
902 || hostname_lookups != HOSTNAME_LOOKUP_OFF)) {
904 if (apr_getnameinfo(&conn->remote_host, conn->client_addr, 0)
906 ap_str_tolower(conn->remote_host);
908 if (hostname_lookups == HOSTNAME_LOOKUP_DOUBLE) {
909 do_double_reverse(conn);
910 if (conn->double_reverse != 1) {
911 conn->remote_host = NULL;
916 /* if failed, set it to the NULL string to indicate error */
917 if (conn->remote_host == NULL) {
918 conn->remote_host = "";
922 if (type == REMOTE_DOUBLE_REV) {
923 do_double_reverse(conn);
924 if (conn->double_reverse == -1) {
930 * Return the desired information; either the remote DNS name, if found,
931 * or either NULL (if the hostname was requested) or the IP address
932 * (if any identifier was requested).
934 if (conn->remote_host != NULL && conn->remote_host[0] != '\0') {
935 return conn->remote_host;
938 if (type == REMOTE_HOST || type == REMOTE_DOUBLE_REV) {
943 return conn->client_ip;
949 * Optional function coming from mod_ident, used for looking up ident user
951 static APR_OPTIONAL_FN_TYPE(ap_ident_lookup) *ident_lookup;
953 AP_DECLARE(const char *) ap_get_remote_logname(request_rec *r)
955 if (r->connection->remote_logname != NULL) {
956 return r->connection->remote_logname;
960 return ident_lookup(r);
966 /* There are two options regarding what the "name" of a server is. The
967 * "canonical" name as defined by ServerName and Port, or the "client's
968 * name" as supplied by a possible Host: header or full URI.
970 * The DNS option to UseCanonicalName causes this routine to do a
971 * reverse lookup on the local IP address of the connection and use
972 * that for the ServerName. This makes its value more reliable while
973 * at the same time allowing Demon's magic virtual hosting to work.
974 * The assumption is that DNS lookups are sufficiently quick...
977 AP_DECLARE(const char *) ap_get_server_name(request_rec *r)
979 conn_rec *conn = r->connection;
983 d = (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
985 switch (d->use_canonical_name) {
986 case USE_CANONICAL_NAME_ON:
987 retval = r->server->server_hostname;
989 case USE_CANONICAL_NAME_DNS:
990 if (conn->local_host == NULL) {
991 if (apr_getnameinfo(&conn->local_host,
992 conn->local_addr, 0) != APR_SUCCESS)
993 conn->local_host = apr_pstrdup(conn->pool,
994 r->server->server_hostname);
996 ap_str_tolower(conn->local_host);
999 retval = conn->local_host;
1001 case USE_CANONICAL_NAME_OFF:
1002 case USE_CANONICAL_NAME_UNSET:
1003 retval = r->hostname ? r->hostname : r->server->server_hostname;
1006 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00109)
1007 "ap_get_server_name: Invalid UCN Option somehow");
1008 retval = "localhost";
1015 * Get the current server name from the request for the purposes
1016 * of using in a URL. If the server name is an IPv6 literal
1017 * address, it will be returned in URL format (e.g., "[fe80::1]").
1019 AP_DECLARE(const char *) ap_get_server_name_for_url(request_rec *r)
1021 const char *plain_server_name = ap_get_server_name(r);
1024 if (ap_strchr_c(plain_server_name, ':')) { /* IPv6 literal? */
1025 return apr_pstrcat(r->pool, "[", plain_server_name, "]", NULL);
1028 return plain_server_name;
1031 AP_DECLARE(apr_port_t) ap_get_server_port(const request_rec *r)
1034 core_dir_config *d =
1035 (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
1037 switch (d->use_canonical_name) {
1038 case USE_CANONICAL_NAME_OFF:
1039 case USE_CANONICAL_NAME_DNS:
1040 case USE_CANONICAL_NAME_UNSET:
1041 if (d->use_canonical_phys_port == USE_CANONICAL_PHYS_PORT_ON)
1042 port = r->parsed_uri.port_str ? r->parsed_uri.port :
1043 r->connection->local_addr->port ? r->connection->local_addr->port :
1044 r->server->port ? r->server->port :
1046 else /* USE_CANONICAL_PHYS_PORT_OFF or USE_CANONICAL_PHYS_PORT_UNSET */
1047 port = r->parsed_uri.port_str ? r->parsed_uri.port :
1048 r->server->port ? r->server->port :
1051 case USE_CANONICAL_NAME_ON:
1052 /* With UseCanonicalName on (and in all versions prior to 1.3)
1053 * Apache will use the hostname and port specified in the
1054 * ServerName directive to construct a canonical name for the
1055 * server. (If no port was specified in the ServerName
1056 * directive, Apache uses the port supplied by the client if
1057 * any is supplied, and finally the default port for the protocol
1060 if (d->use_canonical_phys_port == USE_CANONICAL_PHYS_PORT_ON)
1061 port = r->server->port ? r->server->port :
1062 r->connection->local_addr->port ? r->connection->local_addr->port :
1064 else /* USE_CANONICAL_PHYS_PORT_OFF or USE_CANONICAL_PHYS_PORT_UNSET */
1065 port = r->server->port ? r->server->port :
1069 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00110)
1070 "ap_get_server_port: Invalid UCN Option somehow");
1071 port = ap_default_port(r);
1078 AP_DECLARE(char *) ap_construct_url(apr_pool_t *p, const char *uri,
1081 unsigned port = ap_get_server_port(r);
1082 const char *host = ap_get_server_name_for_url(r);
1084 if (ap_is_default_port(port, r)) {
1085 return apr_pstrcat(p, ap_http_scheme(r), "://", host, uri, NULL);
1088 return apr_psprintf(p, "%s://%s:%u%s", ap_http_scheme(r), host, port, uri);
1091 AP_DECLARE(apr_off_t) ap_get_limit_req_body(const request_rec *r)
1093 core_dir_config *d =
1094 (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
1096 if (d->limit_req_body == AP_LIMIT_REQ_BODY_UNSET) {
1097 return AP_DEFAULT_LIMIT_REQ_BODY;
1100 return d->limit_req_body;
1104 /*****************************************************************
1106 * Commands... this module handles almost all of the NCSA httpd.conf
1107 * commands, but most of the old srm.conf is in the the modules.
1111 /* returns a parent if it matches the given directive */
1112 static const ap_directive_t * find_parent(const ap_directive_t *dirp,
1115 while (dirp->parent != NULL) {
1116 dirp = dirp->parent;
1118 /* ### it would be nice to have atom-ized directives */
1119 if (strcasecmp(dirp->directive, what) == 0)
1126 AP_DECLARE(const char *) ap_check_cmd_context(cmd_parms *cmd,
1129 const char *gt = (cmd->cmd->name[0] == '<'
1130 && cmd->cmd->name[strlen(cmd->cmd->name)-1] != '>')
1132 const ap_directive_t *found;
1134 if ((forbidden & NOT_IN_VIRTUALHOST) && cmd->server->is_virtual) {
1135 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1136 " cannot occur within <VirtualHost> section", NULL);
1139 if ((forbidden & (NOT_IN_LIMIT | NOT_IN_DIR_LOC_FILE))
1140 && cmd->limited != -1) {
1141 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1142 " cannot occur within <Limit> or <LimitExcept> "
1146 if ((forbidden & NOT_IN_HTACCESS) && (cmd->pool == cmd->temp_pool)) {
1147 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1148 " cannot occur within htaccess files", NULL);
1151 if ((forbidden & NOT_IN_DIR_LOC_FILE) == NOT_IN_DIR_LOC_FILE) {
1152 if (cmd->path != NULL) {
1153 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1154 " cannot occur within <Directory/Location/Files> "
1157 if (cmd->cmd->req_override & EXEC_ON_READ) {
1158 /* EXEC_ON_READ must be NOT_IN_DIR_LOC_FILE, if not, it will
1159 * (deliberately) segfault below in the individual tests...
1165 if (((forbidden & NOT_IN_DIRECTORY)
1166 && ((found = find_parent(cmd->directive, "<Directory"))
1167 || (found = find_parent(cmd->directive, "<DirectoryMatch"))))
1168 || ((forbidden & NOT_IN_LOCATION)
1169 && ((found = find_parent(cmd->directive, "<Location"))
1170 || (found = find_parent(cmd->directive, "<LocationMatch"))))
1171 || ((forbidden & NOT_IN_FILES)
1172 && ((found = find_parent(cmd->directive, "<Files"))
1173 || (found = find_parent(cmd->directive, "<FilesMatch"))
1174 || (found = find_parent(cmd->directive, "<If"))
1175 || (found = find_parent(cmd->directive, "<ElseIf"))
1176 || (found = find_parent(cmd->directive, "<Else"))))) {
1177 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1178 " cannot occur within ", found->directive,
1185 static const char *set_access_name(cmd_parms *cmd, void *dummy,
1188 void *sconf = cmd->server->module_config;
1189 core_server_config *conf = ap_get_core_module_config(sconf);
1191 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
1196 conf->access_name = apr_pstrdup(cmd->pool, arg);
1200 AP_DECLARE(const char *) ap_resolve_env(apr_pool_t *p, const char * word)
1202 # define SMALL_EXPANSION 5
1207 } *result, *current, sresult[SMALL_EXPANSION];
1209 const char *s, *e, *ep;
1213 s = ap_strchr_c(word, '$');
1218 /* well, actually something to do */
1219 ep = word + strlen(word);
1221 result = current = &(sresult[spc++]);
1222 current->next = NULL;
1223 current->string = word;
1224 current->len = s - word;
1225 outlen = current->len;
1228 /* prepare next entry */
1230 current->next = (spc < SMALL_EXPANSION)
1232 : (struct sll *)apr_palloc(p,
1233 sizeof(*current->next));
1234 current = current->next;
1235 current->next = NULL;
1240 if (s[1] == '{' && (e = ap_strchr_c(s, '}'))) {
1241 char *name = apr_pstrndup(p, s+2, e-s-2);
1243 if (server_config_defined_vars)
1244 word = apr_table_get(server_config_defined_vars, name);
1246 word = getenv(name);
1248 current->string = word;
1249 current->len = strlen(word);
1250 outlen += current->len;
1253 if (ap_strchr(name, ':') == 0)
1254 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, NULL, APLOGNO(00111)
1255 "Config variable ${%s} is not defined",
1257 current->string = s;
1258 current->len = e - s + 1;
1259 outlen += current->len;
1264 current->string = s++;
1271 s = ap_strchr_c(s, '$');
1272 current->string = word;
1273 current->len = s ? s - word : ep - word;
1274 outlen += current->len;
1278 /* assemble result */
1279 res_buf = cp = apr_palloc(p, outlen + 1);
1282 memcpy(cp, result->string, result->len);
1285 result = result->next;
1287 res_buf[outlen] = '\0';
1292 static int reset_config_defines(void *dummy)
1294 ap_server_config_defines = saved_server_config_defines;
1295 server_config_defined_vars = NULL;
1300 * Make sure we can revert the effects of Define/UnDefine when restarting.
1301 * This function must be called once per loading of the config, before
1302 * ap_server_config_defines is changed. This may be during reading of the
1303 * config, which is even before the pre_config hook is run (due to
1304 * EXEC_ON_READ for Define/UnDefine).
1306 static void init_config_defines(apr_pool_t *pconf)
1308 saved_server_config_defines = ap_server_config_defines;
1309 /* Use apr_array_copy instead of apr_array_copy_hdr because it does not
1310 * protect from the way unset_define removes entries.
1312 ap_server_config_defines = apr_array_copy(pconf, ap_server_config_defines);
1315 static const char *set_define(cmd_parms *cmd, void *dummy,
1316 const char *name, const char *value)
1318 const char *err = ap_check_cmd_context(cmd, NOT_IN_HTACCESS);
1321 if (ap_strchr_c(name, ':') != NULL)
1322 return "Variable name must not contain ':'";
1324 if (!saved_server_config_defines)
1325 init_config_defines(cmd->pool);
1326 if (!ap_exists_config_define(name)) {
1327 char **newv = (char **)apr_array_push(ap_server_config_defines);
1328 *newv = apr_pstrdup(cmd->pool, name);
1331 if (!server_config_defined_vars)
1332 server_config_defined_vars = apr_table_make(cmd->pool, 5);
1333 apr_table_setn(server_config_defined_vars, name, value);
1339 static const char *unset_define(cmd_parms *cmd, void *dummy,
1344 const char *err = ap_check_cmd_context(cmd, NOT_IN_HTACCESS);
1347 if (ap_strchr_c(name, ':') != NULL)
1348 return "Variable name must not contain ':'";
1350 if (!saved_server_config_defines)
1351 init_config_defines(cmd->pool);
1353 defines = (char **)ap_server_config_defines->elts;
1354 for (i = 0; i < ap_server_config_defines->nelts; i++) {
1355 if (strcmp(defines[i], name) == 0) {
1356 defines[i] = apr_array_pop(ap_server_config_defines);
1361 if (server_config_defined_vars) {
1362 apr_table_unset(server_config_defined_vars, name);
1368 static const char *generate_message(cmd_parms *cmd, void *dummy,
1371 /* cast with 64-bit warning avoidance */
1372 int level = (cmd->info==(void*)APLOG_ERR)? APLOG_ERR: APLOG_WARNING;
1375 /* get position information from wherever we can? */
1376 ap_configfile_t * cf = cmd->config_file;
1377 ap_directive_t const * ed1 = cmd->directive;
1378 ap_directive_t const * ed2 = cmd->err_directive;
1380 /* expect an argument */
1381 if (!arg || !*arg) {
1382 return "The Error or Warning directive was used with no message.";
1385 /* set message, strip off quotes if necessary */
1387 if (*arg == '"' || *arg == '\'') {
1388 apr_size_t len = strlen(arg);
1389 char last = *(arg + len - 1);
1392 msg = apr_pstrndup(cmd->pool, arg + 1, len - 2);
1396 /* generate error or warning with a configuration file position.
1397 * the log is displayed on the terminal as no log file is opened yet.
1399 ap_log_error(APLOG_MARK, APLOG_NOERRNO|level, 0, NULL,
1400 "%s on line %d of %s", msg,
1401 cf? cf->line_number:
1403 ed2? ed2->line_num: -1,
1406 ed2? ed2->filename: "<UNKNOWN>");
1408 /* message displayed above, return will stop configuration processing */
1409 return level==APLOG_ERR?
1410 "Configuration processing stopped by Error directive": NULL;
1414 static const char *set_gprof_dir(cmd_parms *cmd, void *dummy, const char *arg)
1416 void *sconf = cmd->server->module_config;
1417 core_server_config *conf = ap_get_core_module_config(sconf);
1419 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
1424 conf->gprof_dir = arg;
1429 static const char *set_add_default_charset(cmd_parms *cmd,
1430 void *d_, const char *arg)
1432 core_dir_config *d = d_;
1434 if (!strcasecmp(arg, "Off")) {
1435 d->add_default_charset = ADD_DEFAULT_CHARSET_OFF;
1437 else if (!strcasecmp(arg, "On")) {
1438 d->add_default_charset = ADD_DEFAULT_CHARSET_ON;
1439 d->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME;
1442 d->add_default_charset = ADD_DEFAULT_CHARSET_ON;
1443 d->add_default_charset_name = arg;
1449 static const char *set_document_root(cmd_parms *cmd, void *dummy,
1452 void *sconf = cmd->server->module_config;
1453 core_server_config *conf = ap_get_core_module_config(sconf);
1455 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
1460 /* When ap_document_root_check is false; skip all the stuff below */
1461 if (!ap_document_root_check) {
1462 conf->ap_document_root = arg;
1466 /* Make it absolute, relative to ServerRoot */
1467 arg = ap_server_root_relative(cmd->pool, arg);
1469 return "DocumentRoot must be a directory";
1472 /* TODO: ap_configtestonly */
1473 if (apr_filepath_merge((char**)&conf->ap_document_root, NULL, arg,
1474 APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS
1475 || !ap_is_directory(cmd->pool, arg)) {
1476 if (cmd->server->is_virtual) {
1477 ap_log_perror(APLOG_MARK, APLOG_STARTUP, 0,
1478 cmd->pool, APLOGNO(00112)
1479 "Warning: DocumentRoot [%s] does not exist",
1481 conf->ap_document_root = arg;
1484 return "DocumentRoot must be a directory";
1490 AP_DECLARE(void) ap_custom_response(request_rec *r, int status,
1493 core_request_config *conf = ap_get_core_module_config(r->request_config);
1496 if (conf->response_code_strings == NULL) {
1497 conf->response_code_strings =
1498 apr_pcalloc(r->pool,
1499 sizeof(*conf->response_code_strings) * RESPONSE_CODES);
1502 idx = ap_index_of_response(status);
1504 conf->response_code_strings[idx] =
1505 ((ap_is_url(string) || (*string == '/')) && (*string != '"')) ?
1506 apr_pstrdup(r->pool, string) : apr_pstrcat(r->pool, "\"", string, NULL);
1509 static const char *set_error_document(cmd_parms *cmd, void *conf_,
1510 const char *errno_str, const char *msg)
1512 core_dir_config *conf = conf_;
1513 int error_number, index_number, idx500;
1514 enum { MSG, LOCAL_PATH, REMOTE_PATH } what = MSG;
1516 /* 1st parameter should be a 3 digit number, which we recognize;
1517 * convert it into an array index
1519 error_number = atoi(errno_str);
1520 idx500 = ap_index_of_response(HTTP_INTERNAL_SERVER_ERROR);
1522 if (error_number == HTTP_INTERNAL_SERVER_ERROR) {
1523 index_number = idx500;
1525 else if ((index_number = ap_index_of_response(error_number)) == idx500) {
1526 return apr_pstrcat(cmd->pool, "Unsupported HTTP response code ",
1530 /* Heuristic to determine second argument. */
1531 if (ap_strchr_c(msg,' '))
1533 else if (msg[0] == '/')
1535 else if (ap_is_url(msg))
1540 /* The entry should be ignored if it is a full URL for a 401 error */
1542 if (error_number == 401 && what == REMOTE_PATH) {
1543 ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, cmd->server, APLOGNO(00113)
1544 "%s:%d cannot use a full URL in a 401 ErrorDocument "
1545 "directive --- ignoring!", cmd->directive->filename, cmd->directive->line_num);
1547 else { /* Store it... */
1548 if (conf->response_code_strings == NULL) {
1549 conf->response_code_strings =
1550 apr_pcalloc(cmd->pool,
1551 sizeof(*conf->response_code_strings) *
1555 if (strcasecmp(msg, "default") == 0) {
1556 /* special case: ErrorDocument 404 default restores the
1557 * canned server error response
1559 conf->response_code_strings[index_number] = &errordocument_default;
1562 /* hack. Prefix a " if it is a msg; as that is what
1563 * http_protocol.c relies on to distinguish between
1564 * a msg and a (local) path.
1566 conf->response_code_strings[index_number] = (what == MSG) ?
1567 apr_pstrcat(cmd->pool, "\"", msg, NULL) :
1568 apr_pstrdup(cmd->pool, msg);
1575 static const char *set_allow_opts(cmd_parms *cmd, allow_options_t *opts,
1578 allow_options_t opt;
1581 char *w, *p = (char *) l;
1584 while ((w = apr_strtok(p, ",", &tok_state)) != NULL) {
1592 if (!strcasecmp(w, "Indexes")) {
1595 else if (!strcasecmp(w, "Includes")) {
1596 /* If Includes is permitted, both Includes and
1597 * IncludesNOEXEC may be changed. */
1598 opt = (OPT_INCLUDES | OPT_INC_WITH_EXEC);
1600 else if (!strcasecmp(w, "IncludesNOEXEC")) {
1603 else if (!strcasecmp(w, "FollowSymLinks")) {
1604 opt = OPT_SYM_LINKS;
1606 else if (!strcasecmp(w, "SymLinksIfOwnerMatch")) {
1607 opt = OPT_SYM_OWNER;
1609 else if (!strcasecmp(w, "ExecCGI")) {
1612 else if (!strcasecmp(w, "MultiViews")) {
1615 else if (!strcasecmp(w, "RunScripts")) { /* AI backcompat. Yuck */
1616 opt = OPT_MULTI|OPT_EXECCGI;
1618 else if (!strcasecmp(w, "None")) {
1621 else if (!strcasecmp(w, "All")) {
1625 return apr_pstrcat(cmd->pool, "Illegal option ", w, NULL);
1631 (*opts) &= (~OPT_UNSET);
1636 static const char *set_override(cmd_parms *cmd, void *d_, const char *l)
1638 core_dir_config *d = d_;
1643 /* Throw a warning if we're in <Location> or <Files> */
1644 if (ap_check_cmd_context(cmd, NOT_IN_LOCATION | NOT_IN_FILES)) {
1645 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server, APLOGNO(00114)
1646 "Useless use of AllowOverride in line %d of %s.",
1647 cmd->directive->line_num, cmd->directive->filename);
1649 if ((err = ap_check_cmd_context(cmd, NOT_IN_HTACCESS)) != NULL)
1652 d->override = OR_NONE;
1654 w = ap_getword_conf(cmd->temp_pool, &l);
1662 if (!strcasecmp(w, "Limit")) {
1663 d->override |= OR_LIMIT;
1665 else if (!strcasecmp(k, "Options")) {
1666 d->override |= OR_OPTIONS;
1668 set_allow_opts(cmd, &(d->override_opts), v);
1670 d->override_opts = OPT_ALL;
1672 else if (!strcasecmp(w, "FileInfo")) {
1673 d->override |= OR_FILEINFO;
1675 else if (!strcasecmp(w, "AuthConfig")) {
1676 d->override |= OR_AUTHCFG;
1678 else if (!strcasecmp(w, "Indexes")) {
1679 d->override |= OR_INDEXES;
1681 else if (!strcasecmp(w, "Nonfatal")) {
1682 if (!strcasecmp(v, "Override")) {
1683 d->override |= NONFATAL_OVERRIDE;
1685 else if (!strcasecmp(v, "Unknown")) {
1686 d->override |= NONFATAL_UNKNOWN;
1688 else if (!strcasecmp(v, "All")) {
1689 d->override |= NONFATAL_ALL;
1692 else if (!strcasecmp(w, "None")) {
1693 d->override = OR_NONE;
1695 else if (!strcasecmp(w, "All")) {
1696 d->override = OR_ALL;
1699 return apr_pstrcat(cmd->pool, "Illegal override option ", w, NULL);
1702 d->override &= ~OR_UNSET;
1708 static const char *set_override_list(cmd_parms *cmd, void *d_, int argc, char *const argv[])
1710 core_dir_config *d = d_;
1714 /* Throw a warning if we're in <Location> or <Files> */
1715 if (ap_check_cmd_context(cmd, NOT_IN_LOCATION | NOT_IN_FILES)) {
1716 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server, APLOGNO(00115)
1717 "Useless use of AllowOverrideList at %s:%d",
1718 cmd->directive->filename, cmd->directive->line_num);
1720 if ((err = ap_check_cmd_context(cmd, NOT_IN_HTACCESS)) != NULL)
1723 d->override_list = apr_table_make(cmd->pool, argc);
1725 for (i=0;i<argc;i++){
1726 if (!strcasecmp(argv[i], "None")) {
1728 return "'None' not allowed with other directives in "
1729 "AllowOverrideList";
1734 const command_rec *result = NULL;
1735 module *mod = ap_top_module;
1736 result = ap_find_command_in_modules(argv[i], &mod);
1737 if (result == NULL) {
1738 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server,
1739 APLOGNO(00116) "Discarding unrecognized "
1740 "directive `%s' in AllowOverrideList at %s:%d",
1741 argv[i], cmd->directive->filename,
1742 cmd->directive->line_num);
1745 else if ((result->req_override & (OR_ALL|ACCESS_CONF)) == 0) {
1746 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server,
1747 APLOGNO(02304) "Discarding directive `%s' not "
1748 "allowed in AllowOverrideList at %s:%d",
1749 argv[i], cmd->directive->filename,
1750 cmd->directive->line_num);
1754 apr_table_set(d->override_list, argv[i], "1");
1762 static const char *set_options(cmd_parms *cmd, void *d_, const char *l)
1764 core_dir_config *d = d_;
1765 allow_options_t opt;
1772 char *w = ap_getword_conf(cmd->temp_pool, &l);
1775 if (*w == '+' || *w == '-') {
1777 if (!merge && !first && !all_none) {
1778 return "Either all Options must start with + or -, or no Option may.";
1786 return "Either all Options must start with + or -, or no Option may.";
1789 if (!strcasecmp(w, "Indexes")) {
1792 else if (!strcasecmp(w, "Includes")) {
1793 opt = (OPT_INCLUDES | OPT_INC_WITH_EXEC);
1795 else if (!strcasecmp(w, "IncludesNOEXEC")) {
1798 else if (!strcasecmp(w, "FollowSymLinks")) {
1799 opt = OPT_SYM_LINKS;
1801 else if (!strcasecmp(w, "SymLinksIfOwnerMatch")) {
1802 opt = OPT_SYM_OWNER;
1804 else if (!strcasecmp(w, "ExecCGI")) {
1807 else if (!strcasecmp(w, "MultiViews")) {
1810 else if (!strcasecmp(w, "RunScripts")) { /* AI backcompat. Yuck */
1811 opt = OPT_MULTI|OPT_EXECCGI;
1813 else if (!strcasecmp(w, "None")) {
1815 return "'Options None' must be the first Option given.";
1817 else if (merge) { /* Only works since None may not follow any other option. */
1818 return "You may not use 'Options +None' or 'Options -None'.";
1823 else if (!strcasecmp(w, "All")) {
1825 return "'Options All' must be the first option given.";
1827 else if (merge) { /* Only works since All may not follow any other option. */
1828 return "You may not use 'Options +All' or 'Options -All'.";
1834 return apr_pstrcat(cmd->pool, "Illegal option ", w, NULL);
1837 if ( (cmd->override_opts & opt) != opt ) {
1838 return apr_pstrcat(cmd->pool, "Option ", w, " not allowed here", NULL);
1840 else if (action == '-') {
1841 /* we ensure the invariant (d->opts_add & d->opts_remove) == 0 */
1842 d->opts_remove |= opt;
1843 d->opts_add &= ~opt;
1846 else if (action == '+') {
1848 d->opts_remove &= ~opt;
1861 static const char *set_default_type(cmd_parms *cmd, void *d_,
1864 if ((strcasecmp(arg, "off") != 0) && (strcasecmp(arg, "none") != 0)) {
1865 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server, APLOGNO(00117)
1866 "Ignoring deprecated use of DefaultType in line %d of %s.",
1867 cmd->directive->line_num, cmd->directive->filename);
1874 * Note what data should be used when forming file ETag values.
1875 * It would be nicer to do this as an ITERATE, but then we couldn't
1876 * remember the +/- state properly.
1878 static const char *set_etag_bits(cmd_parms *cmd, void *mconfig,
1881 core_dir_config *cfg;
1882 etag_components_t bit;
1890 cfg = (core_dir_config *)mconfig;
1895 while (args[0] != '\0') {
1899 token = ap_getword_conf(cmd->temp_pool, &args);
1900 if ((*token == '+') || (*token == '-')) {
1906 * The occurrence of an absolute setting wipes
1907 * out any previous relative ones. The first such
1908 * occurrence forgets any inherited ones, too.
1911 cfg->etag_bits = ETAG_UNSET;
1912 cfg->etag_add = ETAG_UNSET;
1913 cfg->etag_remove = ETAG_UNSET;
1918 if (strcasecmp(token, "None") == 0) {
1919 if (action != '*') {
1923 cfg->etag_bits = bit = ETAG_NONE;
1927 else if (strcasecmp(token, "All") == 0) {
1928 if (action != '*') {
1933 cfg->etag_bits = bit = ETAG_ALL;
1936 else if (strcasecmp(token, "Size") == 0) {
1939 else if ((strcasecmp(token, "LMTime") == 0)
1940 || (strcasecmp(token, "MTime") == 0)
1941 || (strcasecmp(token, "LastModified") == 0)) {
1944 else if (strcasecmp(token, "INode") == 0) {
1948 return apr_pstrcat(cmd->pool, "Unknown keyword '",
1949 token, "' for ", cmd->cmd->name,
1950 " directive", NULL);
1954 return apr_pstrcat(cmd->pool, cmd->cmd->name, " keyword '",
1955 token, "' cannot be used with '+' or '-'",
1959 if (action == '+') {
1961 * Make sure it's in the 'add' list and absent from the
1964 cfg->etag_add |= bit;
1965 cfg->etag_remove &= (~ bit);
1967 else if (action == '-') {
1968 cfg->etag_remove |= bit;
1969 cfg->etag_add &= (~ bit);
1973 * Non-relative values wipe out any + or - values
1974 * accumulated so far.
1976 cfg->etag_bits |= bit;
1977 cfg->etag_add = ETAG_UNSET;
1978 cfg->etag_remove = ETAG_UNSET;
1984 * Any setting at all will clear the 'None' and 'Unset' bits.
1987 if (cfg->etag_add != ETAG_UNSET) {
1988 cfg->etag_add &= (~ ETAG_UNSET);
1991 if (cfg->etag_remove != ETAG_UNSET) {
1992 cfg->etag_remove &= (~ ETAG_UNSET);
1996 cfg->etag_bits &= (~ ETAG_UNSET);
1998 if ((cfg->etag_bits & ETAG_NONE) != ETAG_NONE) {
1999 cfg->etag_bits &= (~ ETAG_NONE);
2006 static const char *set_enable_mmap(cmd_parms *cmd, void *d_,
2009 core_dir_config *d = d_;
2011 if (strcasecmp(arg, "on") == 0) {
2012 d->enable_mmap = ENABLE_MMAP_ON;
2014 else if (strcasecmp(arg, "off") == 0) {
2015 d->enable_mmap = ENABLE_MMAP_OFF;
2018 return "parameter must be 'on' or 'off'";
2024 static const char *set_enable_sendfile(cmd_parms *cmd, void *d_,
2027 core_dir_config *d = d_;
2029 if (strcasecmp(arg, "on") == 0) {
2030 d->enable_sendfile = ENABLE_SENDFILE_ON;
2032 else if (strcasecmp(arg, "off") == 0) {
2033 d->enable_sendfile = ENABLE_SENDFILE_OFF;
2036 return "parameter must be 'on' or 'off'";
2044 * Report a missing-'>' syntax error.
2046 static char *unclosed_directive(cmd_parms *cmd)
2048 return apr_pstrcat(cmd->pool, cmd->cmd->name,
2049 "> directive missing closing '>'", NULL);
2053 * Report a missing args in '<Foo >' syntax error.
2055 static char *missing_container_arg(cmd_parms *cmd)
2057 return apr_pstrcat(cmd->pool, cmd->cmd->name,
2058 "> directive requires additional arguments", NULL);
2061 AP_CORE_DECLARE_NONSTD(const char *) ap_limit_section(cmd_parms *cmd,
2065 const char *endp = ap_strrchr_c(arg, '>');
2066 const char *limited_methods;
2067 void *tog = cmd->cmd->cmd_data;
2068 apr_int64_t limited = 0;
2069 apr_int64_t old_limited = cmd->limited;
2073 return unclosed_directive(cmd);
2076 limited_methods = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2078 if (!limited_methods[0]) {
2079 return missing_container_arg(cmd);
2082 while (limited_methods[0]) {
2083 char *method = ap_getword_conf(cmd->temp_pool, &limited_methods);
2086 /* check for builtin or module registered method number */
2087 methnum = ap_method_number_of(method);
2089 if (methnum == M_TRACE && !tog) {
2090 return "TRACE cannot be controlled by <Limit>, see TraceEnable";
2092 else if (methnum == M_INVALID) {
2093 /* method has not been registered yet, but resorce restriction
2094 * is always checked before method handling, so register it.
2096 methnum = ap_method_register(cmd->pool,
2097 apr_pstrdup(cmd->pool, method));
2100 limited |= (AP_METHOD_BIT << methnum);
2103 /* Killing two features with one function,
2104 * if (tog == NULL) <Limit>, else <LimitExcept>
2106 limited = tog ? ~limited : limited;
2108 if (!(old_limited & limited)) {
2109 return apr_pstrcat(cmd->pool, cmd->cmd->name,
2110 "> directive excludes all methods", NULL);
2112 else if ((old_limited & limited) == old_limited) {
2113 return apr_pstrcat(cmd->pool, cmd->cmd->name,
2114 "> directive specifies methods already excluded",
2118 cmd->limited &= limited;
2120 errmsg = ap_walk_config(cmd->directive->first_child, cmd, cmd->context);
2122 cmd->limited = old_limited;
2127 /* XXX: Bogus - need to do this differently (at least OS2/Netware suffer
2128 * the same problem!!!
2129 * We use this in <DirectoryMatch> and <FilesMatch>, to ensure that
2130 * people don't get bitten by wrong-cased regex matches
2134 #define USE_ICASE AP_REG_ICASE
2139 static const char *dirsection(cmd_parms *cmd, void *mconfig, const char *arg)
2142 const char *endp = ap_strrchr_c(arg, '>');
2143 int old_overrides = cmd->override;
2144 char *old_path = cmd->path;
2145 core_dir_config *conf;
2146 ap_conf_vector_t *new_dir_conf = ap_create_per_dir_config(cmd->pool);
2147 ap_regex_t *r = NULL;
2148 const command_rec *thiscmd = cmd->cmd;
2150 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
2156 return unclosed_directive(cmd);
2159 arg = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2162 return missing_container_arg(cmd);
2165 cmd->path = ap_getword_conf(cmd->pool, &arg);
2166 cmd->override = OR_ALL|ACCESS_CONF;
2168 if (!strcmp(cmd->path, "~")) {
2169 cmd->path = ap_getword_conf(cmd->pool, &arg);
2171 return "<Directory ~ > block must specify a path";
2172 r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED|USE_ICASE);
2174 return "Regex could not be compiled";
2177 else if (thiscmd->cmd_data) { /* <DirectoryMatch> */
2178 r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED|USE_ICASE);
2180 return "Regex could not be compiled";
2183 else if (!strcmp(cmd->path, "/") == 0)
2188 * Ensure that the pathname is canonical, and append the trailing /
2190 apr_status_t rv = apr_filepath_merge(&newpath, NULL, cmd->path,
2191 APR_FILEPATH_TRUENAME, cmd->pool);
2192 if (rv != APR_SUCCESS && rv != APR_EPATHWILD) {
2193 return apr_pstrcat(cmd->pool, "<Directory \"", cmd->path,
2194 "\"> path is invalid.", NULL);
2197 cmd->path = newpath;
2198 if (cmd->path[strlen(cmd->path) - 1] != '/')
2199 cmd->path = apr_pstrcat(cmd->pool, cmd->path, "/", NULL);
2202 /* initialize our config and fetch it */
2203 conf = ap_set_config_vectors(cmd->server, new_dir_conf, cmd->path,
2204 &core_module, cmd->pool);
2206 errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_dir_conf);
2211 conf->d = cmd->path;
2212 conf->d_is_fnmatch = (apr_fnmatch_test(conf->d) != 0);
2214 /* Make this explicit - the "/" root has 0 elements, that is, we
2215 * will always merge it, and it will always sort and merge first.
2216 * All others are sorted and tested by the number of slashes.
2218 if (strcmp(conf->d, "/") == 0)
2219 conf->d_components = 0;
2221 conf->d_components = ap_count_dirs(conf->d);
2223 ap_add_per_dir_conf(cmd->server, new_dir_conf);
2226 return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
2227 "> arguments not (yet) supported.", NULL);
2230 cmd->path = old_path;
2231 cmd->override = old_overrides;
2236 static const char *urlsection(cmd_parms *cmd, void *mconfig, const char *arg)
2239 const char *endp = ap_strrchr_c(arg, '>');
2240 int old_overrides = cmd->override;
2241 char *old_path = cmd->path;
2242 core_dir_config *conf;
2243 ap_regex_t *r = NULL;
2244 const command_rec *thiscmd = cmd->cmd;
2245 ap_conf_vector_t *new_url_conf = ap_create_per_dir_config(cmd->pool);
2246 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
2252 return unclosed_directive(cmd);
2255 arg = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2258 return missing_container_arg(cmd);
2261 cmd->path = ap_getword_conf(cmd->pool, &arg);
2262 cmd->override = OR_ALL|ACCESS_CONF;
2264 if (thiscmd->cmd_data) { /* <LocationMatch> */
2265 r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED);
2267 return "Regex could not be compiled";
2270 else if (!strcmp(cmd->path, "~")) {
2271 cmd->path = ap_getword_conf(cmd->pool, &arg);
2272 r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED);
2274 return "Regex could not be compiled";
2278 /* initialize our config and fetch it */
2279 conf = ap_set_config_vectors(cmd->server, new_url_conf, cmd->path,
2280 &core_module, cmd->pool);
2282 errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_url_conf);
2286 conf->d = apr_pstrdup(cmd->pool, cmd->path); /* No mangling, please */
2287 conf->d_is_fnmatch = apr_fnmatch_test(conf->d) != 0;
2290 ap_add_per_url_conf(cmd->server, new_url_conf);
2293 return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
2294 "> arguments not (yet) supported.", NULL);
2297 cmd->path = old_path;
2298 cmd->override = old_overrides;
2303 static const char *filesection(cmd_parms *cmd, void *mconfig, const char *arg)
2306 const char *endp = ap_strrchr_c(arg, '>');
2307 int old_overrides = cmd->override;
2308 char *old_path = cmd->path;
2309 core_dir_config *conf;
2310 ap_regex_t *r = NULL;
2311 const command_rec *thiscmd = cmd->cmd;
2312 ap_conf_vector_t *new_file_conf = ap_create_per_dir_config(cmd->pool);
2313 const char *err = ap_check_cmd_context(cmd,
2314 NOT_IN_LOCATION | NOT_IN_LIMIT);
2321 return unclosed_directive(cmd);
2324 arg = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2327 return missing_container_arg(cmd);
2330 cmd->path = ap_getword_conf(cmd->pool, &arg);
2331 /* Only if not an .htaccess file */
2333 cmd->override = OR_ALL|ACCESS_CONF;
2336 if (thiscmd->cmd_data) { /* <FilesMatch> */
2337 r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED|USE_ICASE);
2339 return "Regex could not be compiled";
2342 else if (!strcmp(cmd->path, "~")) {
2343 cmd->path = ap_getword_conf(cmd->pool, &arg);
2344 r = ap_pregcomp(cmd->pool, cmd->path, AP_REG_EXTENDED|USE_ICASE);
2346 return "Regex could not be compiled";
2351 /* Ensure that the pathname is canonical, but we
2352 * can't test the case/aliases without a fixed path */
2353 if (apr_filepath_merge(&newpath, "", cmd->path,
2354 0, cmd->pool) != APR_SUCCESS)
2355 return apr_pstrcat(cmd->pool, "<Files \"", cmd->path,
2356 "\"> is invalid.", NULL);
2357 cmd->path = newpath;
2360 /* initialize our config and fetch it */
2361 conf = ap_set_config_vectors(cmd->server, new_file_conf, cmd->path,
2362 &core_module, cmd->pool);
2364 errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_file_conf);
2368 conf->d = cmd->path;
2369 conf->d_is_fnmatch = apr_fnmatch_test(conf->d) != 0;
2372 ap_add_file_conf(cmd->pool, (core_dir_config *)mconfig, new_file_conf);
2375 return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
2376 "> arguments not (yet) supported.", NULL);
2379 cmd->path = old_path;
2380 cmd->override = old_overrides;
2385 #define COND_IF ((void *)1)
2386 #define COND_ELSE ((void *)2)
2387 #define COND_ELSEIF ((void *)3)
2389 static const char *ifsection(cmd_parms *cmd, void *mconfig, const char *arg)
2392 const char *endp = ap_strrchr_c(arg, '>');
2393 int old_overrides = cmd->override;
2394 char *old_path = cmd->path;
2395 core_dir_config *conf;
2396 const command_rec *thiscmd = cmd->cmd;
2397 ap_conf_vector_t *new_if_conf = ap_create_per_dir_config(cmd->pool);
2398 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2399 const char *condition;
2400 const char *expr_err;
2407 return unclosed_directive(cmd);
2410 arg = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2413 * Set a dummy value so that other directives notice that they are inside
2417 /* Only if not an .htaccess file */
2419 cmd->override = OR_ALL|ACCESS_CONF;
2422 /* initialize our config and fetch it */
2423 conf = ap_set_config_vectors(cmd->server, new_if_conf, cmd->path,
2424 &core_module, cmd->pool);
2426 if (cmd->cmd->cmd_data == COND_IF)
2427 conf->condition_ifelse = AP_CONDITION_IF;
2428 else if (cmd->cmd->cmd_data == COND_ELSEIF)
2429 conf->condition_ifelse = AP_CONDITION_ELSEIF;
2430 else if (cmd->cmd->cmd_data == COND_ELSE)
2431 conf->condition_ifelse = AP_CONDITION_ELSE;
2435 if (conf->condition_ifelse == AP_CONDITION_ELSE) {
2437 return "<Else> does not take an argument";
2441 return missing_container_arg(cmd);
2442 condition = ap_getword_conf(cmd->pool, &arg);
2443 conf->condition = ap_expr_parse_cmd(cmd, condition, 0, &expr_err, NULL);
2445 return apr_psprintf(cmd->pool, "Cannot parse condition clause: %s",
2449 errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_if_conf);
2453 conf->d = cmd->path;
2454 conf->d_is_fnmatch = 0;
2457 errmsg = ap_add_if_conf(cmd->pool, (core_dir_config *)mconfig, new_if_conf);
2462 return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
2463 "> arguments not supported.", NULL);
2466 cmd->path = old_path;
2467 cmd->override = old_overrides;
2472 static module *find_module(server_rec *s, const char *name)
2474 module *found = ap_find_linked_module(name);
2476 /* search prelinked stuff */
2478 ap_module_symbol_t *current = ap_prelinked_module_symbols;
2480 for (; current->name; ++current) {
2481 if (!strcmp(current->name, name)) {
2482 found = current->modp;
2488 /* search dynamic stuff */
2490 APR_OPTIONAL_FN_TYPE(ap_find_loaded_module_symbol) *check_symbol =
2491 APR_RETRIEVE_OPTIONAL_FN(ap_find_loaded_module_symbol);
2495 * There are two phases where calling ap_find_loaded_module_symbol
2498 * During reading of the config, ap_server_conf is invalid but s
2499 * points to the main server config, if passed from cmd->server
2500 * of an EXEC_ON_READ directive.
2502 * During config parsing, s may be a virtual host that would cause
2503 * a segfault in mod_so if passed to ap_find_loaded_module_symbol,
2504 * because mod_so's server config for vhosts is initialized later.
2505 * But ap_server_conf is already set at this time.
2507 * Therefore we use s if it is not virtual and ap_server_conf if
2510 found = check_symbol(s->is_virtual ? ap_server_conf : s, name);
2518 static const char *start_ifmod(cmd_parms *cmd, void *mconfig, const char *arg)
2520 const char *endp = ap_strrchr_c(arg, '>');
2521 int not = (arg[0] == '!');
2525 return unclosed_directive(cmd);
2528 arg = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2535 return missing_container_arg(cmd);
2538 found = find_module(cmd->server, arg);
2540 if ((!not && found) || (not && !found)) {
2541 ap_directive_t *parent = NULL;
2542 ap_directive_t *current = NULL;
2545 retval = ap_build_cont_config(cmd->pool, cmd->temp_pool, cmd,
2546 ¤t, &parent, "<IfModule");
2547 *(ap_directive_t **)mconfig = current;
2551 *(ap_directive_t **)mconfig = NULL;
2552 return ap_soak_end_container(cmd, "<IfModule");
2556 AP_DECLARE(int) ap_exists_config_define(const char *name)
2561 defines = (char **)ap_server_config_defines->elts;
2562 for (i = 0; i < ap_server_config_defines->nelts; i++) {
2563 if (strcmp(defines[i], name) == 0) {
2571 static const char *start_ifdefine(cmd_parms *cmd, void *dummy, const char *arg)
2577 endp = ap_strrchr_c(arg, '>');
2579 return unclosed_directive(cmd);
2582 arg = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2584 if (arg[0] == '!') {
2590 return missing_container_arg(cmd);
2593 defined = ap_exists_config_define(arg);
2594 if ((!not && defined) || (not && !defined)) {
2595 ap_directive_t *parent = NULL;
2596 ap_directive_t *current = NULL;
2599 retval = ap_build_cont_config(cmd->pool, cmd->temp_pool, cmd,
2600 ¤t, &parent, "<IfDefine");
2601 *(ap_directive_t **)dummy = current;
2605 *(ap_directive_t **)dummy = NULL;
2606 return ap_soak_end_container(cmd, "<IfDefine");
2610 /* httpd.conf commands... beginning with the <VirtualHost> business */
2612 static const char *virtualhost_section(cmd_parms *cmd, void *dummy,
2615 server_rec *main_server = cmd->server, *s;
2617 const char *endp = ap_strrchr_c(arg, '>');
2618 apr_pool_t *p = cmd->pool;
2620 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2626 return unclosed_directive(cmd);
2629 arg = apr_pstrndup(cmd->temp_pool, arg, endp - arg);
2632 return missing_container_arg(cmd);
2635 /* FIXME: There's another feature waiting to happen here -- since you
2636 can now put multiple addresses/names on a single <VirtualHost>
2637 you might want to use it to group common definitions and then
2638 define other "subhosts" with their individual differences. But
2639 personally I'd rather just do it with a macro preprocessor. -djg */
2640 if (main_server->is_virtual) {
2641 return "<VirtualHost> doesn't nest!";
2644 errmsg = ap_init_virtual_host(p, arg, main_server, &s);
2649 s->next = main_server->next;
2650 main_server->next = s;
2652 s->defn_name = cmd->directive->filename;
2653 s->defn_line_number = cmd->directive->line_num;
2657 errmsg = ap_walk_config(cmd->directive->first_child, cmd,
2658 s->lookup_defaults);
2660 cmd->server = main_server;
2665 static const char *set_server_alias(cmd_parms *cmd, void *dummy,
2668 if (!cmd->server->names) {
2669 return "ServerAlias only used in <VirtualHost>";
2673 char **item, *name = ap_getword_conf(cmd->pool, &arg);
2675 if (ap_is_matchexp(name)) {
2676 item = (char **)apr_array_push(cmd->server->wild_names);
2679 item = (char **)apr_array_push(cmd->server->names);
2688 static const char *set_accf_map(cmd_parms *cmd, void *dummy,
2689 const char *iproto, const char* iaccf)
2691 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2692 core_server_config *conf =
2693 ap_get_core_module_config(cmd->server->module_config);
2700 proto = apr_pstrdup(cmd->pool, iproto);
2701 ap_str_tolower(proto);
2702 accf = apr_pstrdup(cmd->pool, iaccf);
2703 ap_str_tolower(accf);
2704 apr_table_setn(conf->accf_map, proto, accf);
2709 AP_DECLARE(const char*) ap_get_server_protocol(server_rec* s)
2711 core_server_config *conf = ap_get_core_module_config(s->module_config);
2712 return conf->protocol;
2715 AP_DECLARE(void) ap_set_server_protocol(server_rec* s, const char* proto)
2717 core_server_config *conf = ap_get_core_module_config(s->module_config);
2718 conf->protocol = proto;
2721 static const char *set_protocol(cmd_parms *cmd, void *dummy,
2724 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
2725 core_server_config *conf =
2726 ap_get_core_module_config(cmd->server->module_config);
2733 proto = apr_pstrdup(cmd->pool, arg);
2734 ap_str_tolower(proto);
2735 conf->protocol = proto;
2740 static const char *set_server_string_slot(cmd_parms *cmd, void *dummy,
2743 /* This one's pretty generic... */
2745 int offset = (int)(long)cmd->info;
2746 char *struct_ptr = (char *)cmd->server;
2748 const char *err = ap_check_cmd_context(cmd,
2749 NOT_IN_DIR_LOC_FILE);
2754 *(const char **)(struct_ptr + offset) = arg;
2759 * The ServerName directive takes one argument with format
2760 * [scheme://]fully-qualified-domain-name[:port], for instance
2761 * ServerName www.example.com
2762 * ServerName www.example.com:80
2763 * ServerName https://www.example.com:443
2766 static const char *server_hostname_port(cmd_parms *cmd, void *dummy, const char *arg)
2768 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
2769 const char *portstr, *part;
2777 if (apr_fnmatch_test(arg))
2778 return apr_pstrcat(cmd->temp_pool, "Invalid ServerName \"", arg,
2779 "\" use ServerAlias to set multiple server names.", NULL);
2781 part = ap_strstr_c(arg, "://");
2784 scheme = apr_pstrndup(cmd->pool, arg, part - arg);
2785 ap_str_tolower(scheme);
2786 cmd->server->server_scheme = (const char *)scheme;
2792 portstr = ap_strchr_c(part, ':');
2794 cmd->server->server_hostname = apr_pstrndup(cmd->pool, part,
2797 port = atoi(portstr);
2798 if (port <= 0 || port >= 65536) { /* 65536 == 1<<16 */
2799 return apr_pstrcat(cmd->temp_pool, "The port number \"", arg,
2800 "\" is outside the appropriate range "
2801 "(i.e., 1..65535).", NULL);
2805 cmd->server->server_hostname = apr_pstrdup(cmd->pool, part);
2809 cmd->server->port = port;
2813 static const char *set_signature_flag(cmd_parms *cmd, void *d_,
2816 core_dir_config *d = d_;
2818 if (strcasecmp(arg, "On") == 0) {
2819 d->server_signature = srv_sig_on;
2821 else if (strcasecmp(arg, "Off") == 0) {
2822 d->server_signature = srv_sig_off;
2824 else if (strcasecmp(arg, "EMail") == 0) {
2825 d->server_signature = srv_sig_withmail;
2828 return "ServerSignature: use one of: off | on | email";
2834 static const char *set_server_root(cmd_parms *cmd, void *dummy,
2837 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2843 if ((apr_filepath_merge((char**)&ap_server_root, NULL, arg,
2844 APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS)
2845 || !ap_is_directory(cmd->temp_pool, ap_server_root)) {
2846 return "ServerRoot must be a valid directory";
2852 static const char *set_runtime_dir(cmd_parms *cmd, void *dummy, const char *arg)
2854 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2860 if ((apr_filepath_merge((char**)&ap_runtime_dir, NULL,
2861 ap_server_root_relative(cmd->pool, arg),
2862 APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS)
2863 || !ap_is_directory(cmd->temp_pool, ap_runtime_dir)) {
2864 return "DefaultRuntimeDir must be a valid directory, absolute or relative to ServerRoot";
2870 static const char *set_timeout(cmd_parms *cmd, void *dummy, const char *arg)
2872 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
2878 cmd->server->timeout = apr_time_from_sec(atoi(arg));
2882 static const char *set_allow2f(cmd_parms *cmd, void *d_, const char *arg)
2884 core_dir_config *d = d_;
2886 if (0 == strcasecmp(arg, "on")) {
2887 d->allow_encoded_slashes = 1;
2888 d->decode_encoded_slashes = 1; /* for compatibility with 2.0 & 2.2 */
2889 } else if (0 == strcasecmp(arg, "off")) {
2890 d->allow_encoded_slashes = 0;
2891 d->decode_encoded_slashes = 0;
2892 } else if (0 == strcasecmp(arg, "nodecode")) {
2893 d->allow_encoded_slashes = 1;
2894 d->decode_encoded_slashes = 0;
2896 return apr_pstrcat(cmd->pool,
2897 cmd->cmd->name, " must be On, Off, or NoDecode",
2901 d->allow_encoded_slashes_set = 1;
2902 d->decode_encoded_slashes_set = 1;
2907 static const char *set_hostname_lookups(cmd_parms *cmd, void *d_,
2910 core_dir_config *d = d_;
2912 if (!strcasecmp(arg, "on")) {
2913 d->hostname_lookups = HOSTNAME_LOOKUP_ON;
2915 else if (!strcasecmp(arg, "off")) {
2916 d->hostname_lookups = HOSTNAME_LOOKUP_OFF;
2918 else if (!strcasecmp(arg, "double")) {
2919 d->hostname_lookups = HOSTNAME_LOOKUP_DOUBLE;
2922 return "parameter must be 'on', 'off', or 'double'";
2928 static const char *set_serverpath(cmd_parms *cmd, void *dummy,
2931 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
2937 cmd->server->path = arg;
2938 cmd->server->pathlen = (int)strlen(arg);
2942 static const char *set_content_md5(cmd_parms *cmd, void *d_, int arg)
2944 core_dir_config *d = d_;
2946 d->content_md5 = arg ? AP_CONTENT_MD5_ON : AP_CONTENT_MD5_OFF;
2950 static const char *set_accept_path_info(cmd_parms *cmd, void *d_, const char *arg)
2952 core_dir_config *d = d_;
2954 if (strcasecmp(arg, "on") == 0) {
2955 d->accept_path_info = AP_REQ_ACCEPT_PATH_INFO;
2957 else if (strcasecmp(arg, "off") == 0) {
2958 d->accept_path_info = AP_REQ_REJECT_PATH_INFO;
2960 else if (strcasecmp(arg, "default") == 0) {
2961 d->accept_path_info = AP_REQ_DEFAULT_PATH_INFO;
2964 return "AcceptPathInfo must be set to on, off or default";
2970 static const char *set_use_canonical_name(cmd_parms *cmd, void *d_,
2973 core_dir_config *d = d_;
2975 if (strcasecmp(arg, "on") == 0) {
2976 d->use_canonical_name = USE_CANONICAL_NAME_ON;
2978 else if (strcasecmp(arg, "off") == 0) {
2979 d->use_canonical_name = USE_CANONICAL_NAME_OFF;
2981 else if (strcasecmp(arg, "dns") == 0) {
2982 d->use_canonical_name = USE_CANONICAL_NAME_DNS;
2985 return "parameter must be 'on', 'off', or 'dns'";
2991 static const char *set_use_canonical_phys_port(cmd_parms *cmd, void *d_,
2994 core_dir_config *d = d_;
2996 if (strcasecmp(arg, "on") == 0) {
2997 d->use_canonical_phys_port = USE_CANONICAL_PHYS_PORT_ON;
2999 else if (strcasecmp(arg, "off") == 0) {
3000 d->use_canonical_phys_port = USE_CANONICAL_PHYS_PORT_OFF;
3003 return "parameter must be 'on' or 'off'";
3009 static const char *include_config (cmd_parms *cmd, void *dummy,
3012 ap_directive_t *conftree = NULL;
3013 const char *conffile, *error;
3014 unsigned *recursion;
3015 int optional = cmd->cmd->cmd_data ? 1 : 0;
3018 apr_pool_userdata_get(&data, "ap_include_sentinel", cmd->pool);
3023 data = recursion = apr_palloc(cmd->pool, sizeof(*recursion));
3025 apr_pool_userdata_setn(data, "ap_include_sentinel", NULL, cmd->pool);
3028 if (++*recursion > AP_MAX_INCLUDE_DEPTH) {
3030 return apr_psprintf(cmd->pool, "Exceeded maximum include depth of %u, "
3031 "There appears to be a recursion.",
3032 AP_MAX_INCLUDE_DEPTH);
3035 conffile = ap_server_root_relative(cmd->pool, name);
3038 return apr_pstrcat(cmd->pool, "Invalid Include path ",
3042 error = ap_process_fnmatch_configs(cmd->server, conffile, &conftree,
3043 cmd->pool, cmd->temp_pool,
3050 *(ap_directive_t **)dummy = conftree;
3052 /* recursion level done */
3060 static const char *update_loglevel(cmd_parms *cmd, struct ap_logconf *log,
3063 const char *level_str, *err;
3067 level_str = ap_strrchr_c(arg, ':');
3069 if (level_str == NULL) {
3070 err = ap_parse_log_level(arg, &log->level);
3073 ap_reset_module_loglevels(log, APLOG_NO_MODULE);
3074 ap_log_error(APLOG_MARK, APLOG_TRACE3, 0, cmd->server,
3075 "Setting %s for all modules to %s", cmd->cmd->name, arg);
3079 arg = apr_pstrmemdup(cmd->temp_pool, arg, level_str - arg);
3082 return apr_psprintf(cmd->temp_pool, "Module specifier '%s' must be "
3083 "followed by a log level keyword", arg);
3086 err = ap_parse_log_level(level_str, &level);
3088 return apr_psprintf(cmd->temp_pool, "%s:%s: %s", arg, level_str, err);
3090 if ((module = find_module(cmd->server, arg)) == NULL) {
3091 char *name = apr_psprintf(cmd->temp_pool, "%s_module", arg);
3092 ap_log_error(APLOG_MARK, APLOG_TRACE6, 0, cmd->server,
3093 "Cannot find module '%s', trying '%s'", arg, name);
3094 module = find_module(cmd->server, name);
3097 if (module == NULL) {
3098 return apr_psprintf(cmd->temp_pool, "Cannot find module %s", arg);
3101 ap_set_module_loglevel(cmd->pool, log, module->module_index, level);
3102 ap_log_error(APLOG_MARK, APLOG_TRACE3, 0, cmd->server,
3103 "Setting %s for module %s to %s", cmd->cmd->name,
3104 module->name, level_str);
3109 static const char *set_loglevel(cmd_parms *cmd, void *config_, const char *arg)
3111 struct ap_logconf *log;
3114 core_dir_config *dconf = config_;
3116 dconf->log = ap_new_log_config(cmd->pool, NULL);
3121 log = &cmd->server->log;
3125 return "LogLevel requires level keyword or module loglevel specifier";
3127 return update_loglevel(cmd, log, arg);
3130 static const char *set_loglevel_override(cmd_parms *cmd, void *d_, int argc,
3133 core_server_config *sconf;
3134 conn_log_config *entry;
3136 const char *addr, *mask, *err;
3139 return "LogLevelOverride requires at least two arguments";
3141 entry = apr_pcalloc(cmd->pool, sizeof(conn_log_config));
3142 sconf = ap_get_core_module_config(cmd->server->module_config);
3143 if (!sconf->conn_log_level)
3144 sconf->conn_log_level = apr_array_make(cmd->pool, 4, sizeof(entry));
3145 APR_ARRAY_PUSH(sconf->conn_log_level, conn_log_config *) = entry;
3148 mask = ap_strchr_c(addr, '/');
3150 addr = apr_pstrmemdup(cmd->temp_pool, addr, mask - addr);
3153 ret = apr_ipsubnet_create(&entry->subnet, addr, mask, cmd->pool);
3154 if (ret != APR_SUCCESS)
3155 return "parsing of subnet/netmask failed";
3157 for (i = 1; i < argc; i++) {
3158 if ((err = update_loglevel(cmd, &entry->log, argv[i])) != NULL)
3164 AP_DECLARE(const char *) ap_psignature(const char *prefix, request_rec *r)
3167 core_dir_config *conf;
3169 conf = (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
3170 if ((conf->server_signature == srv_sig_off)
3171 || (conf->server_signature == srv_sig_unset)) {
3175 apr_snprintf(sport, sizeof sport, "%u", (unsigned) ap_get_server_port(r));
3177 if (conf->server_signature == srv_sig_withmail) {
3178 return apr_pstrcat(r->pool, prefix, "<address>",
3179 ap_get_server_banner(),
3180 " Server at <a href=\"",
3181 ap_is_url(r->server->server_admin) ? "" : "mailto:",
3182 ap_escape_html(r->pool, r->server->server_admin),
3184 ap_escape_html(r->pool, ap_get_server_name(r)),
3185 "</a> Port ", sport,
3186 "</address>\n", NULL);
3189 return apr_pstrcat(r->pool, prefix, "<address>", ap_get_server_banner(),
3191 ap_escape_html(r->pool, ap_get_server_name(r)),
3193 "</address>\n", NULL);
3197 * Handle a request to include the server's OS platform in the Server
3198 * response header field (the ServerTokens directive). Unfortunately
3199 * this requires a new global in order to communicate the setting back to
3200 * http_main so it can insert the information in the right place in the
3204 static char *server_banner = NULL;
3205 static int banner_locked = 0;
3206 static const char *server_description = NULL;
3208 enum server_token_type {
3209 SrvTk_MAJOR, /* eg: Apache/2 */
3210 SrvTk_MINOR, /* eg. Apache/2.0 */
3211 SrvTk_MINIMAL, /* eg: Apache/2.0.41 */
3212 SrvTk_OS, /* eg: Apache/2.0.41 (UNIX) */
3213 SrvTk_FULL, /* eg: Apache/2.0.41 (UNIX) PHP/4.2.2 FooBar/1.2b */
3214 SrvTk_PRODUCT_ONLY /* eg: Apache */
3216 static enum server_token_type ap_server_tokens = SrvTk_FULL;
3218 static apr_status_t reset_banner(void *dummy)
3221 ap_server_tokens = SrvTk_FULL;
3222 server_banner = NULL;
3223 server_description = NULL;
3227 AP_DECLARE(void) ap_get_server_revision(ap_version_t *version)
3229 version->major = AP_SERVER_MAJORVERSION_NUMBER;
3230 version->minor = AP_SERVER_MINORVERSION_NUMBER;
3231 version->patch = AP_SERVER_PATCHLEVEL_NUMBER;
3232 version->add_string = AP_SERVER_ADD_STRING;
3235 AP_DECLARE(const char *) ap_get_server_description(void)
3237 return server_description ? server_description :
3238 AP_SERVER_BASEVERSION " (" PLATFORM ")";
3241 AP_DECLARE(const char *) ap_get_server_banner(void)
3243 return server_banner ? server_banner : AP_SERVER_BASEVERSION;
3246 AP_DECLARE(void) ap_add_version_component(apr_pool_t *pconf, const char *component)
3248 if (! banner_locked) {
3250 * If the version string is null, register our cleanup to reset the
3251 * pointer on pool destruction. We also know that, if NULL,
3252 * we are adding the original SERVER_BASEVERSION string.
3254 if (server_banner == NULL) {
3255 apr_pool_cleanup_register(pconf, NULL, reset_banner,
3256 apr_pool_cleanup_null);
3257 server_banner = apr_pstrdup(pconf, component);
3261 * Tack the given component identifier to the end of
3262 * the existing string.
3264 server_banner = apr_pstrcat(pconf, server_banner, " ",
3268 server_description = apr_pstrcat(pconf, server_description, " ",
3273 * This routine adds the real server base identity to the banner string,
3274 * and then locks out changes until the next reconfig.
3276 static void set_banner(apr_pool_t *pconf)
3278 if (ap_server_tokens == SrvTk_PRODUCT_ONLY) {
3279 ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT);
3281 else if (ap_server_tokens == SrvTk_MINIMAL) {
3282 ap_add_version_component(pconf, AP_SERVER_BASEVERSION);
3284 else if (ap_server_tokens == SrvTk_MINOR) {
3285 ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT "/" AP_SERVER_MINORREVISION);
3287 else if (ap_server_tokens == SrvTk_MAJOR) {
3288 ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT "/" AP_SERVER_MAJORVERSION);
3291 ap_add_version_component(pconf, AP_SERVER_BASEVERSION " (" PLATFORM ")");
3295 * Lock the server_banner string if we're not displaying
3296 * the full set of tokens
3298 if (ap_server_tokens != SrvTk_FULL) {
3301 server_description = AP_SERVER_BASEVERSION " (" PLATFORM ")";
3304 static const char *set_serv_tokens(cmd_parms *cmd, void *dummy,
3305 const char *arg1, const char *arg2)
3307 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
3313 if (!strcasecmp(arg1, "OS")) {
3314 ap_server_tokens = SrvTk_OS;
3316 else if (!strcasecmp(arg1, "Min") || !strcasecmp(arg1, "Minimal")) {
3317 ap_server_tokens = SrvTk_MINIMAL;
3319 else if (!strcasecmp(arg1, "Major")) {
3320 ap_server_tokens = SrvTk_MAJOR;
3322 else if (!strcasecmp(arg1, "Minor") ) {
3323 ap_server_tokens = SrvTk_MINOR;
3325 else if (!strcasecmp(arg1, "Prod") || !strcasecmp(arg1, "ProductOnly")) {
3326 ap_server_tokens = SrvTk_PRODUCT_ONLY;
3328 else if (!strcasecmp(arg1, "Full")) {
3329 ap_server_tokens = SrvTk_FULL;
3332 return "ServerTokens takes 1 argument, 'Prod', 'Major', 'Minor', 'Min', 'OS', or 'Full'";
3338 static const char *set_limit_req_line(cmd_parms *cmd, void *dummy,
3341 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
3350 return apr_pstrcat(cmd->temp_pool, "LimitRequestLine \"", arg,
3351 "\" must be a non-negative integer", NULL);
3354 cmd->server->limit_req_line = lim;
3358 static const char *set_limit_req_fieldsize(cmd_parms *cmd, void *dummy,
3361 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
3370 return apr_pstrcat(cmd->temp_pool, "LimitRequestFieldsize \"", arg,
3371 "\" must be a non-negative integer",
3375 cmd->server->limit_req_fieldsize = lim;
3379 static const char *set_limit_req_fields(cmd_parms *cmd, void *dummy,
3382 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE);
3391 return apr_pstrcat(cmd->temp_pool, "LimitRequestFields \"", arg,
3392 "\" must be a non-negative integer (0 = no limit)",
3396 cmd->server->limit_req_fields = lim;
3400 static const char *set_limit_req_body(cmd_parms *cmd, void *conf_,
3403 core_dir_config *conf = conf_;
3406 if (APR_SUCCESS != apr_strtoff(&conf->limit_req_body, arg, &errp, 10)) {
3407 return "LimitRequestBody argument is not parsable.";
3409 if (*errp || conf->limit_req_body < 0) {
3410 return "LimitRequestBody requires a non-negative integer.";
3416 static const char *set_limit_xml_req_body(cmd_parms *cmd, void *conf_,
3419 core_dir_config *conf = conf_;
3421 conf->limit_xml_body = atol(arg);
3422 if (conf->limit_xml_body < 0)
3423 return "LimitXMLRequestBody requires a non-negative integer.";
3428 static const char *set_max_ranges(cmd_parms *cmd, void *conf_, const char *arg)
3430 core_dir_config *conf = conf_;
3433 if (!strcasecmp(arg, "none")) {
3434 val = AP_MAXRANGES_NORANGES;
3436 else if (!strcasecmp(arg, "default")) {
3437 val = AP_MAXRANGES_DEFAULT;
3439 else if (!strcasecmp(arg, "unlimited")) {
3440 val = AP_MAXRANGES_UNLIMITED;
3445 return "MaxRanges requires 'none', 'default', 'unlimited' or "
3446 "a positive integer";
3449 conf->max_ranges = val;
3454 static const char *set_max_overlaps(cmd_parms *cmd, void *conf_, const char *arg)
3456 core_dir_config *conf = conf_;
3459 if (!strcasecmp(arg, "none")) {
3460 val = AP_MAXRANGES_NORANGES;
3462 else if (!strcasecmp(arg, "default")) {
3463 val = AP_MAXRANGES_DEFAULT;
3465 else if (!strcasecmp(arg, "unlimited")) {
3466 val = AP_MAXRANGES_UNLIMITED;
3471 return "MaxRangeOverlaps requires 'none', 'default', 'unlimited' or "
3472 "a positive integer";
3475 conf->max_overlaps = val;
3480 static const char *set_max_reversals(cmd_parms *cmd, void *conf_, const char *arg)
3482 core_dir_config *conf = conf_;
3485 if (!strcasecmp(arg, "none")) {
3486 val = AP_MAXRANGES_NORANGES;
3488 else if (!strcasecmp(arg, "default")) {
3489 val = AP_MAXRANGES_DEFAULT;
3491 else if (!strcasecmp(arg, "unlimited")) {
3492 val = AP_MAXRANGES_UNLIMITED;
3497 return "MaxRangeReversals requires 'none', 'default', 'unlimited' or "
3498 "a positive integer";
3501 conf->max_reversals = val;
3506 AP_DECLARE(apr_size_t) ap_get_limit_xml_body(const request_rec *r)
3508 core_dir_config *conf;
3510 conf = ap_get_core_module_config(r->per_dir_config);
3511 if (conf->limit_xml_body == AP_LIMIT_UNSET)
3512 return AP_DEFAULT_LIMIT_XML_BODY;
3514 return (apr_size_t)conf->limit_xml_body;
3517 #if !defined (RLIMIT_CPU) || !(defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS)) || !defined (RLIMIT_NPROC)
3518 static const char *no_set_limit(cmd_parms *cmd, void *conf_,
3519 const char *arg, const char *arg2)
3521 ap_log_error(APLOG_MARK, APLOG_ERR, 0, cmd->server, APLOGNO(00118)
3522 "%s not supported on this platform", cmd->cmd->name);
3529 static const char *set_limit_cpu(cmd_parms *cmd, void *conf_,
3530 const char *arg, const char *arg2)
3532 core_dir_config *conf = conf_;
3534 ap_unixd_set_rlimit(cmd, &conf->limit_cpu, arg, arg2, RLIMIT_CPU);
3539 #if defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS)
3540 static const char *set_limit_mem(cmd_parms *cmd, void *conf_,
3541 const char *arg, const char * arg2)
3543 core_dir_config *conf = conf_;
3545 #if defined(RLIMIT_AS)
3546 ap_unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2 ,RLIMIT_AS);
3547 #elif defined(RLIMIT_DATA)
3548 ap_unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2, RLIMIT_DATA);
3549 #elif defined(RLIMIT_VMEM)
3550 ap_unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2, RLIMIT_VMEM);
3558 static const char *set_limit_nproc(cmd_parms *cmd, void *conf_,
3559 const char *arg, const char * arg2)
3561 core_dir_config *conf = conf_;
3563 ap_unixd_set_rlimit(cmd, &conf->limit_nproc, arg, arg2, RLIMIT_NPROC);
3568 static const char *set_recursion_limit(cmd_parms *cmd, void *dummy,
3569 const char *arg1, const char *arg2)
3571 core_server_config *conf =
3572 ap_get_core_module_config(cmd->server->module_config);
3573 int limit = atoi(arg1);
3576 return "The recursion limit must be greater than zero.";
3579 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server, APLOGNO(00119)
3580 "Limiting internal redirects to very low numbers may "
3581 "cause normal requests to fail.");
3584 conf->redirect_limit = limit;
3590 return "The recursion limit must be greater than zero.";
3593 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server, APLOGNO(00120)
3594 "Limiting the subrequest depth to a very low level may"
3595 " cause normal requests to fail.");
3599 conf->subreq_limit = limit;
3604 static void log_backtrace(const request_rec *r)
3606 const request_rec *top = r;
3608 ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(00121)
3609 "r->uri = %s", r->uri ? r->uri : "(unexpectedly NULL)");
3611 while (top && (top->prev || top->main)) {
3614 ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(00122)
3615 "redirected from r->uri = %s",
3616 top->uri ? top->uri : "(unexpectedly NULL)");
3619 if (!top->prev && top->main) {
3621 ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, APLOGNO(00123)
3622 "subrequested from r->uri = %s",
3623 top->uri ? top->uri : "(unexpectedly NULL)");
3629 * check whether redirect limit is reached
3631 AP_DECLARE(int) ap_is_recursion_limit_exceeded(const request_rec *r)
3633 core_server_config *conf =
3634 ap_get_core_module_config(r->server->module_config);
3635 const request_rec *top = r;
3636 int redirects = 0, subreqs = 0;
3637 int rlimit = conf->redirect_limit
3638 ? conf->redirect_limit
3639 : AP_DEFAULT_MAX_INTERNAL_REDIRECTS;
3640 int slimit = conf->subreq_limit
3641 ? conf->subreq_limit
3642 : AP_DEFAULT_MAX_SUBREQ_DEPTH;
3645 while (top->prev || top->main) {
3647 if (++redirects >= rlimit) {
3648 /* uuh, too much. */
3649 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00124)
3650 "Request exceeded the limit of %d internal "
3651 "redirects due to probable configuration error. "
3652 "Use 'LimitInternalRecursion' to increase the "
3653 "limit if necessary. Use 'LogLevel debug' to get "
3654 "a backtrace.", rlimit);
3656 /* post backtrace */
3659 /* return failure */
3666 if (!top->prev && top->main) {
3667 if (++subreqs >= slimit) {
3668 /* uuh, too much. */
3669 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00125)
3670 "Request exceeded the limit of %d subrequest "
3671 "nesting levels due to probable configuration "
3672 "error. Use 'LimitInternalRecursion' to increase "
3673 "the limit if necessary. Use 'LogLevel debug' to "
3674 "get a backtrace.", slimit);
3676 /* post backtrace */
3679 /* return failure */
3687 /* recursion state: ok */
3691 static const char *set_trace_enable(cmd_parms *cmd, void *dummy,
3694 core_server_config *conf =
3695 ap_get_core_module_config(cmd->server->module_config);
3697 if (strcasecmp(arg1, "on") == 0) {
3698 conf->trace_enable = AP_TRACE_ENABLE;
3700 else if (strcasecmp(arg1, "off") == 0) {
3701 conf->trace_enable = AP_TRACE_DISABLE;
3703 else if (strcasecmp(arg1, "extended") == 0) {
3704 conf->trace_enable = AP_TRACE_EXTENDED;
3707 return "TraceEnable must be one of 'on', 'off', or 'extended'";
3713 static const char *set_http_protocol(cmd_parms *cmd, void *dummy,
3716 core_server_config *conf =
3717 ap_get_core_module_config(cmd->server->module_config);
3719 if (strncmp(arg, "min=", 4) == 0) {
3721 if (strcmp(arg, "0.9") == 0)
3722 conf->http09_enable = AP_HTTP09_ENABLE;
3723 else if (strcmp(arg, "1.0") == 0)
3724 conf->http09_enable = AP_HTTP09_DISABLE;
3726 return "HttpProtocol 'min' must be one of '0.9' and '1.0'";
3730 if (strcmp(arg, "strict") == 0)
3731 conf->http_conformance = AP_HTTP_CONFORMANCE_STRICT;
3732 else if (strcmp(arg, "strict,log-only") == 0)
3733 conf->http_conformance = AP_HTTP_CONFORMANCE_STRICT|
3734 AP_HTTP_CONFORMANCE_LOGONLY;
3735 else if (strcmp(arg, "liberal") == 0)
3736 conf->http_conformance = AP_HTTP_CONFORMANCE_LIBERAL;
3738 return "HttpProtocol accepts 'min=0.9', 'min=1.0', 'liberal', "
3739 "'strict', 'strict,log-only'";
3741 if ((conf->http_conformance & AP_HTTP_CONFORMANCE_STRICT) &&
3742 (conf->http_conformance & AP_HTTP_CONFORMANCE_LIBERAL)) {
3743 return "HttpProtocol 'strict' and 'liberal' are mutually exclusive";
3749 static const char *set_http_method(cmd_parms *cmd, void *conf, const char *arg)
3751 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
3754 ap_method_register(cmd->pool, arg);
3758 static apr_hash_t *errorlog_hash;
3760 static int log_constant_item(const ap_errorlog_info *info, const char *arg,
3761 char *buf, int buflen)
3763 char *end = apr_cpystrn(buf, arg, buflen);
3767 static char *parse_errorlog_misc_string(apr_pool_t *p,
3768 ap_errorlog_format_item *it,
3772 char scratch[MAX_STRING_LEN];
3775 * non-leading white space terminates this string to allow the next field
3776 * separator to be inserted
3780 it->func = log_constant_item;
3783 while (*s && *s != '%' && (*s != ' ' || at_start) && d < scratch + MAX_STRING_LEN) {
3806 /* handle end of string */
3810 /* copy next char verbatim */
3817 it->arg = apr_pstrdup(p, scratch);
3823 static char *parse_errorlog_item(apr_pool_t *p, ap_errorlog_format_item *it,
3826 const char *s = *sa;
3827 ap_errorlog_handler *handler;
3832 it->flags |= AP_ERRORLOG_FLAG_FIELD_SEP;
3834 return parse_errorlog_misc_string(p, it, sa);
3840 /* percent-space (% ) is a field separator */
3841 it->flags |= AP_ERRORLOG_FLAG_FIELD_SEP;
3844 return parse_errorlog_item(p, it, sa);
3846 else if (*s == '%') {
3848 it->func = log_constant_item;
3857 it->arg = ap_getword(p, &s, '}');
3861 it->flags |= AP_ERRORLOG_FLAG_REQUIRED;
3865 it->flags |= AP_ERRORLOG_FLAG_NULL_AS_HYPHEN;
3878 while (apr_isdigit(*++s))
3879 i = i * 10 + (*s) - '0';
3880 it->min_loglevel = i;
3884 it->flags |= AP_ERRORLOG_FLAG_MESSAGE;
3888 handler = (ap_errorlog_handler *)apr_hash_get(errorlog_hash, s, 1);
3894 return apr_pstrcat(p, "Unrecognized error log format directive %",
3897 it->func = handler->func;
3903 return "Ran off end of error log format parsing args to some directive";
3906 static apr_array_header_t *parse_errorlog_string(apr_pool_t *p,
3911 apr_array_header_t *a = apr_array_make(p, 30,
3912 sizeof(ap_errorlog_format_item));
3914 int seen_msg_fmt = 0;
3917 ap_errorlog_format_item *item =
3918 (ap_errorlog_format_item *)apr_array_push(a);
3919 memset(item, 0, sizeof(*item));
3920 res = parse_errorlog_item(p, item, &s);
3925 if (item->flags & AP_ERRORLOG_FLAG_MESSAGE) {
3927 *err = "%M cannot be used in once-per-request or "
3928 "once-per-connection formats";
3933 if (is_main_fmt && item->flags & AP_ERRORLOG_FLAG_REQUIRED) {
3934 *err = "The '+' flag cannot be used in the main error log format";
3937 if (!is_main_fmt && item->min_loglevel) {
3938 *err = "The loglevel cannot be used as a condition in "
3939 "once-per-request or once-per-connection formats";
3942 if (item->min_loglevel > APLOG_TRACE8) {
3943 *err = "The specified loglevel modifier is out of range";
3948 if (is_main_fmt && !seen_msg_fmt) {
3949 *err = "main ErrorLogFormat must contain message format string '%M'";
3956 static const char *set_errorlog_format(cmd_parms *cmd, void *dummy,
3957 const char *arg1, const char *arg2)
3959 const char *err_string = NULL;
3960 core_server_config *conf =
3961 ap_get_core_module_config(cmd->server->module_config);
3964 conf->error_log_format = parse_errorlog_string(cmd->pool, arg1,
3967 else if (!strcasecmp(arg1, "connection")) {
3968 if (!conf->error_log_conn) {
3969 conf->error_log_conn = apr_array_make(cmd->pool, 5,
3970 sizeof(apr_array_header_t *));
3974 apr_array_header_t **e;
3975 e = (apr_array_header_t **) apr_array_push(conf->error_log_conn);
3976 *e = parse_errorlog_string(cmd->pool, arg2, &err_string, 0);
3979 else if (!strcasecmp(arg1, "request")) {
3980 if (!conf->error_log_req) {
3981 conf->error_log_req = apr_array_make(cmd->pool, 5,
3982 sizeof(apr_array_header_t *));
3986 apr_array_header_t **e;
3987 e = (apr_array_header_t **) apr_array_push(conf->error_log_req);
3988 *e = parse_errorlog_string(cmd->pool, arg2, &err_string, 0);
3992 err_string = "ErrorLogFormat type must be one of request, connection";
3998 AP_DECLARE(void) ap_register_errorlog_handler(apr_pool_t *p, char *tag,
3999 ap_errorlog_handler_fn_t *handler,
4002 ap_errorlog_handler *log_struct = apr_palloc(p, sizeof(*log_struct));
4003 log_struct->func = handler;
4004 log_struct->flags = flags;
4006 apr_hash_set(errorlog_hash, tag, 1, (const void *)log_struct);
4010 /* Note --- ErrorDocument will now work from .htaccess files.
4011 * The AllowOverride of Fileinfo allows webmasters to turn it off
4014 static const command_rec core_cmds[] = {
4016 /* Old access config file commands */
4018 AP_INIT_RAW_ARGS("<Directory", dirsection, NULL, RSRC_CONF,
4019 "Container for directives affecting resources located in the specified "
4021 AP_INIT_RAW_ARGS("<Location", urlsection, NULL, RSRC_CONF,
4022 "Container for directives affecting resources accessed through the "
4023 "specified URL paths"),
4024 AP_INIT_RAW_ARGS("<VirtualHost", virtualhost_section, NULL, RSRC_CONF,
4025 "Container to map directives to a particular virtual host, takes one or "
4026 "more host addresses"),
4027 AP_INIT_RAW_ARGS("<Files", filesection, NULL, OR_ALL,
4028 "Container for directives affecting files matching specified patterns"),
4029 AP_INIT_RAW_ARGS("<Limit", ap_limit_section, NULL, OR_LIMIT | OR_AUTHCFG,
4030 "Container for authentication directives when accessed using specified HTTP "
4032 AP_INIT_RAW_ARGS("<LimitExcept", ap_limit_section, (void*)1,
4033 OR_LIMIT | OR_AUTHCFG,
4034 "Container for authentication directives to be applied when any HTTP "
4035 "method other than those specified is used to access the resource"),
4036 AP_INIT_TAKE1("<IfModule", start_ifmod, NULL, EXEC_ON_READ | OR_ALL,
4037 "Container for directives based on existence of specified modules"),
4038 AP_INIT_TAKE1("<IfDefine", start_ifdefine, NULL, EXEC_ON_READ | OR_ALL,
4039 "Container for directives based on existence of command line defines"),
4040 AP_INIT_RAW_ARGS("<DirectoryMatch", dirsection, (void*)1, RSRC_CONF,
4041 "Container for directives affecting resources located in the "
4042 "specified directories"),
4043 AP_INIT_RAW_ARGS("<LocationMatch", urlsection, (void*)1, RSRC_CONF,
4044 "Container for directives affecting resources accessed through the "
4045 "specified URL paths"),
4046 AP_INIT_RAW_ARGS("<FilesMatch", filesection, (void*)1, OR_ALL,
4047 "Container for directives affecting files matching specified patterns"),
4049 AP_INIT_TAKE1("GprofDir", set_gprof_dir, NULL, RSRC_CONF,
4050 "Directory to plop gmon.out files"),
4052 AP_INIT_TAKE1("AddDefaultCharset", set_add_default_charset, NULL, OR_FILEINFO,
4053 "The name of the default charset to add to any Content-Type without one or 'Off' to disable"),
4054 AP_INIT_TAKE1("AcceptPathInfo", set_accept_path_info, NULL, OR_FILEINFO,
4055 "Set to on or off for PATH_INFO to be accepted by handlers, or default for the per-handler preference"),
4056 AP_INIT_TAKE12("Define", set_define, NULL, EXEC_ON_READ|ACCESS_CONF|RSRC_CONF,
4057 "Define a variable, optionally to a value. Same as passing -D to the command line."),
4058 AP_INIT_TAKE1("UnDefine", unset_define, NULL, EXEC_ON_READ|ACCESS_CONF|RSRC_CONF,
4059 "Undefine the existence of a variable. Undo a Define."),
4060 AP_INIT_RAW_ARGS("Error", generate_message, (void*) APLOG_ERR, OR_ALL,
4061 "Generate error message from within configuration."),
4062 AP_INIT_RAW_ARGS("Warning", generate_message, (void*) APLOG_WARNING, OR_ALL,
4063 "Generate warning message from within configuration."),
4064 AP_INIT_RAW_ARGS("<If", ifsection, COND_IF, OR_ALL,
4065 "Container for directives to be conditionally applied"),
4066 AP_INIT_RAW_ARGS("<ElseIf", ifsection, COND_ELSEIF, OR_ALL,
4067 "Container for directives to be conditionally applied"),
4068 AP_INIT_RAW_ARGS("<Else", ifsection, COND_ELSE, OR_ALL,
4069 "Container for directives to be conditionally applied"),
4071 /* Old resource config file commands */
4073 AP_INIT_RAW_ARGS("AccessFileName", set_access_name, NULL, RSRC_CONF,
4074 "Name(s) of per-directory config files (default: .htaccess)"),
4075 AP_INIT_TAKE1("DocumentRoot", set_document_root, NULL, RSRC_CONF,
4076 "Root directory of the document tree"),
4077 AP_INIT_TAKE2("ErrorDocument", set_error_document, NULL, OR_FILEINFO,
4078 "Change responses for HTTP errors"),
4079 AP_INIT_RAW_ARGS("AllowOverride", set_override, NULL, ACCESS_CONF,
4080 "Controls what groups of directives can be configured by per-directory "
4082 AP_INIT_TAKE_ARGV("AllowOverrideList", set_override_list, NULL, ACCESS_CONF,
4083 "Controls what individual directives can be configured by per-directory "
4085 AP_INIT_RAW_ARGS("Options", set_options, NULL, OR_OPTIONS,
4086 "Set a number of attributes for a given directory"),
4087 AP_INIT_TAKE1("DefaultType", set_default_type, NULL, OR_FILEINFO,
4088 "the default media type for otherwise untyped files (DEPRECATED)"),
4089 AP_INIT_RAW_ARGS("FileETag", set_etag_bits, NULL, OR_FILEINFO,
4090 "Specify components used to construct a file's ETag"),
4091 AP_INIT_TAKE1("EnableMMAP", set_enable_mmap, NULL, OR_FILEINFO,
4092 "Controls whether memory-mapping may be used to read files"),
4093 AP_INIT_TAKE1("EnableSendfile", set_enable_sendfile, NULL, OR_FILEINFO,
4094 "Controls whether sendfile may be used to transmit files"),
4096 /* Old server config file commands */
4098 AP_INIT_TAKE1("Protocol", set_protocol, NULL, RSRC_CONF,
4099 "Set the Protocol for httpd to use."),
4100 AP_INIT_TAKE2("AcceptFilter", set_accf_map, NULL, RSRC_CONF,
4101 "Set the Accept Filter to use for a protocol"),
4102 AP_INIT_TAKE1("Port", ap_set_deprecated, NULL, RSRC_CONF,
4103 "Port was replaced with Listen in Apache 2.0"),
4104 AP_INIT_TAKE1("HostnameLookups", set_hostname_lookups, NULL,
4105 ACCESS_CONF|RSRC_CONF,
4106 "\"on\" to enable, \"off\" to disable reverse DNS lookups, or \"double\" to "
4107 "enable double-reverse DNS lookups"),
4108 AP_INIT_TAKE1("ServerAdmin", set_server_string_slot,
4109 (void *)APR_OFFSETOF(server_rec, server_admin), RSRC_CONF,
4110 "The email address of the server administrator"),
4111 AP_INIT_TAKE1("ServerName", server_hostname_port, NULL, RSRC_CONF,
4112 "The hostname and port of the server"),
4113 AP_INIT_TAKE1("ServerSignature", set_signature_flag, NULL, OR_ALL,
4114 "En-/disable server signature (on|off|email)"),
4115 AP_INIT_TAKE1("ServerRoot", set_server_root, NULL, RSRC_CONF | EXEC_ON_READ,
4116 "Common directory of server-related files (logs, confs, etc.)"),
4117 AP_INIT_TAKE1("DefaultRuntimeDir", set_runtime_dir, NULL, RSRC_CONF | EXEC_ON_READ,
4118 "Common directory for run-time files (shared memory, locks, etc.)"),
4119 AP_INIT_TAKE1("ErrorLog", set_server_string_slot,
4120 (void *)APR_OFFSETOF(server_rec, error_fname), RSRC_CONF,
4121 "The filename of the error log"),
4122 AP_INIT_TAKE12("ErrorLogFormat", set_errorlog_format, NULL, RSRC_CONF,
4123 "Format string for the ErrorLog"),
4124 AP_INIT_RAW_ARGS("ServerAlias", set_server_alias, NULL, RSRC_CONF,
4125 "A name or names alternately used to access the server"),
4126 AP_INIT_TAKE1("ServerPath", set_serverpath, NULL, RSRC_CONF,
4127 "The pathname the server can be reached at"),
4128 AP_INIT_TAKE1("Timeout", set_timeout, NULL, RSRC_CONF,
4129 "Timeout duration (sec)"),
4130 AP_INIT_FLAG("ContentDigest", set_content_md5, NULL, OR_OPTIONS,
4131 "whether or not to send a Content-MD5 header with each request"),
4132 AP_INIT_TAKE1("UseCanonicalName", set_use_canonical_name, NULL,
4133 RSRC_CONF|ACCESS_CONF,
4134 "How to work out the ServerName : Port when constructing URLs"),
4135 AP_INIT_TAKE1("UseCanonicalPhysicalPort", set_use_canonical_phys_port, NULL,
4136 RSRC_CONF|ACCESS_CONF,
4137 "Whether to use the physical Port when constructing URLs"),
4138 /* TODO: RlimitFoo should all be part of mod_cgi, not in the core */
4139 /* TODO: ListenBacklog in MPM */
4140 AP_INIT_TAKE1("Include", include_config, NULL,
4141 (RSRC_CONF | ACCESS_CONF | EXEC_ON_READ),
4142 "Name(s) of the config file(s) to be included; fails if the wildcard does "
4143 "not match at least one file"),
4144 AP_INIT_TAKE1("IncludeOptional", include_config, (void*)1,
4145 (RSRC_CONF | ACCESS_CONF | EXEC_ON_READ),
4146 "Name or pattern of the config file(s) to be included; ignored if the file "
4147 "does not exist or the pattern does not match any files"),
4148 AP_INIT_ITERATE("LogLevel", set_loglevel, NULL, RSRC_CONF|ACCESS_CONF,
4149 "Level of verbosity in error logging"),
4150 AP_INIT_TAKE_ARGV("LogLevelOverride", set_loglevel_override, NULL, RSRC_CONF,
4151 "Override LogLevel for clients with certain IPs"),
4152 AP_INIT_TAKE1("NameVirtualHost", ap_set_name_virtual_host, NULL, RSRC_CONF,
4153 "A numeric IP address:port, or the name of a host"),
4154 AP_INIT_TAKE12("ServerTokens", set_serv_tokens, NULL, RSRC_CONF,
4155 "Determine tokens displayed in the Server: header - Min(imal), "
4156 "Major, Minor, Prod, OS or Full"),
4157 AP_INIT_TAKE1("LimitRequestLine", set_limit_req_line, NULL, RSRC_CONF,
4158 "Limit on maximum size of an HTTP request line"),
4159 AP_INIT_TAKE1("LimitRequestFieldsize", set_limit_req_fieldsize, NULL,
4161 "Limit on maximum size of an HTTP request header field"),
4162 AP_INIT_TAKE1("LimitRequestFields", set_limit_req_fields, NULL, RSRC_CONF,
4163 "Limit (0 = unlimited) on max number of header fields in a request message"),
4164 AP_INIT_TAKE1("LimitRequestBody", set_limit_req_body,
4165 (void*)APR_OFFSETOF(core_dir_config, limit_req_body), OR_ALL,
4166 "Limit (in bytes) on maximum size of request message body"),
4167 AP_INIT_TAKE1("LimitXMLRequestBody", set_limit_xml_req_body, NULL, OR_ALL,
4168 "Limit (in bytes) on maximum size of an XML-based request "
4170 AP_INIT_RAW_ARGS("Mutex", ap_set_mutex, NULL, RSRC_CONF,
4171 "mutex (or \"default\") and mechanism"),
4173 AP_INIT_TAKE1("MaxRanges", set_max_ranges, NULL, RSRC_CONF|ACCESS_CONF,
4174 "Maximum number of Ranges in a request before returning the entire "
4175 "resource, or 0 for unlimited"),
4176 AP_INIT_TAKE1("MaxRangeOverlaps", set_max_overlaps, NULL, RSRC_CONF|ACCESS_CONF,
4177 "Maximum number of overlaps in Ranges in a request before returning the entire "
4178 "resource, or 0 for unlimited"),
4179 AP_INIT_TAKE1("MaxRangeReversals", set_max_reversals, NULL, RSRC_CONF|ACCESS_CONF,
4180 "Maximum number of reversals in Ranges in a request before returning the entire "
4181 "resource, or 0 for unlimited"),
4182 /* System Resource Controls */
4184 AP_INIT_TAKE12("RLimitCPU", set_limit_cpu,
4185 (void*)APR_OFFSETOF(core_dir_config, limit_cpu),
4186 OR_ALL, "Soft/hard limits for max CPU usage in seconds"),
4188 AP_INIT_TAKE12("RLimitCPU", no_set_limit, NULL,
4189 OR_ALL, "Soft/hard limits for max CPU usage in seconds"),
4191 #if defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined (RLIMIT_AS)
4192 AP_INIT_TAKE12("RLimitMEM", set_limit_mem,
4193 (void*)APR_OFFSETOF(core_dir_config, limit_mem),
4194 OR_ALL, "Soft/hard limits for max memory usage per process"),
4196 AP_INIT_TAKE12("RLimitMEM", no_set_limit, NULL,
4197 OR_ALL, "Soft/hard limits for max memory usage per process"),
4200 AP_INIT_TAKE12("RLimitNPROC", set_limit_nproc,
4201 (void*)APR_OFFSETOF(core_dir_config, limit_nproc),
4202 OR_ALL, "soft/hard limits for max number of processes per uid"),
4204 AP_INIT_TAKE12("RLimitNPROC", no_set_limit, NULL,
4205 OR_ALL, "soft/hard limits for max number of processes per uid"),
4208 /* internal recursion stopper */
4209 AP_INIT_TAKE12("LimitInternalRecursion", set_recursion_limit, NULL, RSRC_CONF,
4210 "maximum recursion depth of internal redirects and subrequests"),
4212 AP_INIT_TAKE1("ForceType", ap_set_string_slot_lower,
4213 (void *)APR_OFFSETOF(core_dir_config, mime_type), OR_FILEINFO,
4214 "a mime type that overrides other configured type"),
4215 AP_INIT_TAKE1("SetHandler", ap_set_string_slot_lower,
4216 (void *)APR_OFFSETOF(core_dir_config, handler), OR_FILEINFO,
4217 "a handler name that overrides any other configured handler"),
4218 AP_INIT_TAKE1("SetOutputFilter", ap_set_string_slot,
4219 (void *)APR_OFFSETOF(core_dir_config, output_filters), OR_FILEINFO,
4220 "filter (or ; delimited list of filters) to be run on the request content"),
4221 AP_INIT_TAKE1("SetInputFilter", ap_set_string_slot,
4222 (void *)APR_OFFSETOF(core_dir_config, input_filters), OR_FILEINFO,
4223 "filter (or ; delimited list of filters) to be run on the request body"),
4224 AP_INIT_TAKE1("AllowEncodedSlashes", set_allow2f, NULL, RSRC_CONF,
4225 "Allow URLs containing '/' encoded as '%2F'"),
4227 /* scoreboard.c directives */
4228 AP_INIT_TAKE1("ScoreBoardFile", ap_set_scoreboard, NULL, RSRC_CONF,
4229 "A file for Apache to maintain runtime process management information"),
4230 AP_INIT_FLAG("ExtendedStatus", ap_set_extended_status, NULL, RSRC_CONF,
4231 "\"On\" to track extended status information, \"Off\" to disable"),
4232 AP_INIT_FLAG("SeeRequestTail", ap_set_reqtail, NULL, RSRC_CONF,
4233 "For extended status, \"On\" to see the last 63 chars of "
4234 "the request line, \"Off\" (default) to see the first 63"),
4237 * These are default configuration directives that mpms can/should
4239 * XXX These are not for all platforms, and even some Unix MPMs might not want
4242 AP_INIT_TAKE1("PidFile", ap_mpm_set_pidfile, NULL, RSRC_CONF,
4243 "A file for logging the server process ID"),
4244 AP_INIT_TAKE1("MaxRequestsPerChild", ap_mpm_set_max_requests, NULL, RSRC_CONF,
4245 "Maximum number of connections a particular child serves before "
4246 "dying. (DEPRECATED, use MaxConnectionsPerChild)"),
4247 AP_INIT_TAKE1("MaxConnectionsPerChild", ap_mpm_set_max_requests, NULL, RSRC_CONF,
4248 "Maximum number of connections a particular child serves before dying."),
4249 AP_INIT_TAKE1("CoreDumpDirectory", ap_mpm_set_coredumpdir, NULL, RSRC_CONF,
4250 "The location of the directory Apache changes to before dumping core"),
4251 AP_INIT_TAKE1("MaxMemFree", ap_mpm_set_max_mem_free, NULL, RSRC_CONF,
4252 "Maximum number of 1k blocks a particular child's allocator may hold."),
4253 AP_INIT_TAKE1("ThreadStackSize", ap_mpm_set_thread_stacksize, NULL, RSRC_CONF,
4254 "Size in bytes of stack used by threads handling client connections"),
4255 #if AP_ENABLE_EXCEPTION_HOOK
4256 AP_INIT_TAKE1("EnableExceptionHook", ap_mpm_set_exception_hook, NULL, RSRC_CONF,
4257 "Controls whether exception hook may be called after a crash"),
4259 AP_INIT_TAKE1("TraceEnable", set_trace_enable, NULL, RSRC_CONF,
4260 "'on' (default), 'off' or 'extended' to trace request body content"),
4261 AP_INIT_ITERATE("HttpProtocol", set_http_protocol, NULL, RSRC_CONF,
4262 "'min=0.9' (default) or 'min=1.0' to allow/deny HTTP/0.9; "
4263 "'liberal', 'strict', 'strict,log-only'"),
4264 AP_INIT_ITERATE("RegisterHttpMethod", set_http_method, NULL, RSRC_CONF,
4265 "Registers non-standard HTTP methods"),
4269 /*****************************************************************
4271 * Core handlers for various phases of server operation...
4274 AP_DECLARE_NONSTD(int) ap_core_translate(request_rec *r)
4279 /* XXX this seems too specific, this should probably become
4280 * some general-case test
4283 return HTTP_FORBIDDEN;
4285 if (!r->uri || ((r->uri[0] != '/') && strcmp(r->uri, "*"))) {
4286 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00126)
4287 "Invalid URI in request %s", r->the_request);
4288 return HTTP_BAD_REQUEST;
4292 && !strncmp(r->uri, r->server->path, r->server->pathlen)
4293 && (r->server->path[r->server->pathlen - 1] == '/'
4294 || r->uri[r->server->pathlen] == '/'
4295 || r->uri[r->server->pathlen] == '\0'))
4297 path = r->uri + r->server->pathlen;
4303 * Make sure that we do not mess up the translation by adding two
4304 * /'s in a row. This happens under windows when the document
4305 * root ends with a /
4307 /* skip all leading /'s (e.g. http://localhost///foo)
4308 * so we are looking at only the relative path.
4310 while (*path == '/') {
4313 if ((rv = apr_filepath_merge(&r->filename, ap_document_root(r), path,
4314 APR_FILEPATH_TRUENAME
4315 | APR_FILEPATH_SECUREROOT, r->pool))
4317 ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, APLOGNO(00127)
4318 "Cannot map %s to file", r->the_request);
4319 return HTTP_FORBIDDEN;
4321 r->canonical_filename = r->filename;
4326 /*****************************************************************
4328 * Test the filesystem name through directory_walk and file_walk
4330 static int core_map_to_storage(request_rec *r)
4334 if ((access_status = ap_directory_walk(r))) {
4335 return access_status;
4338 if ((access_status = ap_file_walk(r))) {
4339 return access_status;
4346 static int do_nothing(request_rec *r) { return OK; }
4349 static int core_override_type(request_rec *r)
4351 core_dir_config *conf =
4352 (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
4354 /* Check for overrides with ForceType / SetHandler
4356 if (conf->mime_type && strcmp(conf->mime_type, "none"))
4357 ap_set_content_type(r, (char*) conf->mime_type);
4359 if (conf->handler && strcmp(conf->handler, "none"))
4360 r->handler = conf->handler;
4362 /* Deal with the poor soul who is trying to force path_info to be
4363 * accepted within the core_handler, where they will let the subreq
4364 * address its contents. This is toggled by the user in the very
4365 * beginning of the fixup phase (here!), so modules should override the user's
4366 * discretion in their own module fixup phase. It is tristate, if
4367 * the user doesn't specify, the result is AP_REQ_DEFAULT_PATH_INFO.
4368 * (which the module may interpret to its own customary behavior.)
4369 * It won't be touched if the value is no longer AP_ACCEPT_PATHINFO_UNSET,
4370 * so any module changing the value prior to the fixup phase
4371 * OVERRIDES the user's choice.
4373 if ((r->used_path_info == AP_REQ_DEFAULT_PATH_INFO)
4374 && (conf->accept_path_info != AP_ACCEPT_PATHINFO_UNSET)) {
4375 /* No module knew better, and the user coded AcceptPathInfo */
4376 r->used_path_info = conf->accept_path_info;
4382 static int default_handler(request_rec *r)
4384 conn_rec *c = r->connection;
4385 apr_bucket_brigade *bb;
4389 apr_file_t *fd = NULL;
4390 apr_status_t status;
4391 /* XXX if/when somebody writes a content-md5 filter we either need to
4392 * remove this support or coordinate when to use the filter vs.
4393 * when to use this code
4394 * The current choice of when to compute the md5 here matches the 1.3
4395 * support fairly closely (unlike 1.3, we don't handle computing md5
4396 * when the charset is translated).
4398 int bld_content_md5;
4400 d = (core_dir_config *)ap_get_core_module_config(r->per_dir_config);
4401 bld_content_md5 = (d->content_md5 == AP_CONTENT_MD5_ON)
4402 && r->output_filters->frec->ftype != AP_FTYPE_RESOURCE;
4404 ap_allow_standard_methods(r, MERGE_ALLOW, M_GET, M_OPTIONS, M_POST, -1);
4406 /* If filters intend to consume the request body, they must
4407 * register an InputFilter to slurp the contents of the POST
4408 * data from the POST input stream. It no longer exists when
4409 * the output filters are invoked by the default handler.
4411 if ((errstatus = ap_discard_request_body(r)) != OK) {
4415 if (r->method_number == M_GET || r->method_number == M_POST) {
4416 if (r->finfo.filetype == APR_NOFILE) {
4417 ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(00128)
4418 "File does not exist: %s",
4419 apr_pstrcat(r->pool, r->filename, r->path_info, NULL));
4420 return HTTP_NOT_FOUND;
4423 /* Don't try to serve a dir. Some OSs do weird things with
4426 if (r->finfo.filetype == APR_DIR) {
4427 ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(00129)
4428 "Attempt to serve directory: %s", r->filename);
4429 return HTTP_NOT_FOUND;
4432 if ((r->used_path_info != AP_REQ_ACCEPT_PATH_INFO) &&
4433 r->path_info && *r->path_info)
4435 /* default to reject */
4436 ap_log_rerror(APLOG_MARK, APLOG_INFO, 0, r, APLOGNO(00130)
4437 "File does not exist: %s",
4438 apr_pstrcat(r->pool, r->filename, r->path_info, NULL));
4439 return HTTP_NOT_FOUND;
4442 /* We understood the (non-GET) method, but it might not be legal for
4443 this particular resource. Check to see if the 'deliver_script'
4444 flag is set. If so, then we go ahead and deliver the file since
4445 it isn't really content (only GET normally returns content).
4447 Note: based on logic further above, the only possible non-GET
4448 method at this point is POST. In the future, we should enable
4449 script delivery for all methods. */
4450 if (r->method_number != M_GET) {
4451 core_request_config *req_cfg;
4453 req_cfg = ap_get_core_module_config(r->request_config);
4454 if (!req_cfg->deliver_script) {
4455 /* The flag hasn't been set for this request. Punt. */
4456 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00131)
4457 "This resource does not accept the %s method.",
4459 return HTTP_METHOD_NOT_ALLOWED;
4464 if ((status = apr_file_open(&fd, r->filename, APR_READ | APR_BINARY
4465 #if APR_HAS_SENDFILE
4466 | AP_SENDFILE_ENABLED(d->enable_sendfile)
4468 , 0, r->pool)) != APR_SUCCESS) {
4469 ap_log_rerror(APLOG_MARK, APLOG_ERR, status, r, APLOGNO(00132)
4470 "file permissions deny server access: %s", r->filename);
4471 return HTTP_FORBIDDEN;
4474 ap_update_mtime(r, r->finfo.mtime);
4475 ap_set_last_modified(r);
4477 ap_set_accept_ranges(r);
4478 ap_set_content_length(r, r->finfo.size);
4479 if (bld_content_md5) {
4480 apr_table_setn(r->headers_out, "Content-MD5",
4481 ap_md5digest(r->pool, fd));
4484 bb = apr_brigade_create(r->pool, c->bucket_alloc);
4486 if ((errstatus = ap_meets_conditions(r)) != OK) {
4488 r->status = errstatus;
4491 e = apr_brigade_insert_file(bb, fd, 0, r->finfo.size, r->pool);
4494 if (d->enable_mmap == ENABLE_MMAP_OFF) {
4495 (void)apr_bucket_file_enable_mmap(e, 0);
4500 e = apr_bucket_eos_create(c->bucket_alloc);
4501 APR_BRIGADE_INSERT_TAIL(bb, e);
4503 status = ap_pass_brigade(r->output_filters, bb);
4504 if (status == APR_SUCCESS
4505 || r->status != HTTP_OK
4510 /* no way to know what type of error occurred */
4511 ap_log_rerror(APLOG_MARK, APLOG_DEBUG, status, r, APLOGNO(00133)
4512 "default_handler: ap_pass_brigade returned %i",
4514 return HTTP_INTERNAL_SERVER_ERROR;
4517 else { /* unusual method (not GET or POST) */
4518 if (r->method_number == M_INVALID) {
4519 /* See if this looks like an undecrypted SSL handshake attempt.
4520 * It's safe to look a couple bytes into the_request if it exists, as it's
4521 * always allocated at least MIN_LINE_ALLOC (80) bytes.
4524 && r->the_request[0] == 0x16
4525 && (r->the_request[1] == 0x2 || r->the_request[1] == 0x3)) {
4526 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00134)
4527 "Invalid method in request %s - possible attempt to establish SSL connection on non-SSL port", r->the_request);
4529 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, APLOGNO(00135)
4530 "Invalid method in request %s", r->the_request);
4532 return HTTP_NOT_IMPLEMENTED;
4535 if (r->method_number == M_OPTIONS) {
4536 return ap_send_http_options(r);
4538 return HTTP_METHOD_NOT_ALLOWED;
4542 /* Optional function coming from mod_logio, used for logging of output
4545 APR_OPTIONAL_FN_TYPE(ap_logio_add_bytes_out) *ap__logio_add_bytes_out;
4546 APR_OPTIONAL_FN_TYPE(authz_some_auth_required) *ap__authz_ap_some_auth_required;
4548 /* Insist that at least one module will undertake to provide system
4549 * security by dropping startup privileges.
4551 static int sys_privileges = 0;
4552 AP_DECLARE(int) ap_sys_privileges_handlers(int inc)
4554 sys_privileges += inc;
4555 return sys_privileges;
4558 static int check_errorlog_dir(apr_pool_t *p, server_rec *s)
4560 if (!s->error_fname || s->error_fname[0] == '|'
4561 || strcmp(s->error_fname, "syslog") == 0) {
4565 char *abs = ap_server_root_relative(p, s->error_fname);
4566 char *dir = ap_make_dirstr_parent(p, abs);
4568 apr_status_t rv = apr_stat(&finfo, dir, APR_FINFO_TYPE, p);
4569 if (rv == APR_SUCCESS && finfo.filetype != APR_DIR)
4571 if (rv != APR_SUCCESS) {
4572 const char *desc = "main error log";
4574 desc = apr_psprintf(p, "error log of vhost defined at %s:%d",
4575 s->defn_name, s->defn_line_number);
4576 ap_log_error(APLOG_MARK, APLOG_STARTUP|APLOG_EMERG, rv,
4577 ap_server_conf, APLOGNO(02291)
4578 "Cannot access directory '%s' for %s", dir, desc);
4585 static int core_check_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)
4589 if (check_errorlog_dir(ptemp, s) != OK)
4597 static int core_pre_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp)
4599 ap_mutex_init(pconf);
4601 if (!saved_server_config_defines)
4602 init_config_defines(pconf);
4603 apr_pool_cleanup_register(pconf, NULL, reset_config_defines,
4604 apr_pool_cleanup_null);
4606 mpm_common_pre_config(pconf);
4611 static int core_post_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)
4613 ap__logio_add_bytes_out = APR_RETRIEVE_OPTIONAL_FN(ap_logio_add_bytes_out);
4614 ident_lookup = APR_RETRIEVE_OPTIONAL_FN(ap_ident_lookup);
4615 ap__authz_ap_some_auth_required = APR_RETRIEVE_OPTIONAL_FN(authz_some_auth_required);
4616 authn_ap_auth_type = APR_RETRIEVE_OPTIONAL_FN(authn_ap_auth_type);
4617 authn_ap_auth_name = APR_RETRIEVE_OPTIONAL_FN(authn_ap_auth_name);
4618 access_compat_ap_satisfies = APR_RETRIEVE_OPTIONAL_FN(access_compat_ap_satisfies);
4621 ap_setup_make_content_type(pconf);
4622 ap_setup_auth_internal(ptemp);
4623 if (!sys_privileges) {
4624 ap_log_error(APLOG_MARK, APLOG_CRIT, 0, NULL, APLOGNO(00136)
4625 "Server MUST relinquish startup privileges before "
4626 "accepting connections. Please ensure mod_unixd "
4627 "or other system security module is loaded.");
4630 apr_pool_cleanup_register(pconf, NULL, ap_mpm_end_gen_helper,
4631 apr_pool_cleanup_null);
4635 static void core_insert_filter(request_rec *r)
4637 core_dir_config *conf = (core_dir_config *)
4638 ap_get_core_module_config(r->per_dir_config);
4639 const char *filter, *filters = conf->output_filters;
4642 while (*filters && (filter = ap_getword(r->pool, &filters, ';'))) {
4643 ap_add_output_filter(filter, NULL, r, r->connection);
4647 filters = conf->input_filters;
4649 while (*filters && (filter = ap_getword(r->pool, &filters, ';'))) {
4650 ap_add_input_filter(filter, NULL, r, r->connection);
4655 static apr_size_t num_request_notes = AP_NUM_STD_NOTES;
4657 static apr_status_t reset_request_notes(void *dummy)
4659 num_request_notes = AP_NUM_STD_NOTES;
4663 AP_DECLARE(apr_size_t) ap_register_request_note(void)
4665 apr_pool_cleanup_register(apr_hook_global_pool, NULL, reset_request_notes,
4666 apr_pool_cleanup_null);
4667 return num_request_notes++;
4670 AP_DECLARE(void **) ap_get_request_note(request_rec *r, apr_size_t note_num)
4672 core_request_config *req_cfg;
4674 if (note_num >= num_request_notes) {
4678 req_cfg = (core_request_config *)
4679 ap_get_core_module_config(r->request_config);
4685 return &(req_cfg->notes[note_num]);
4688 AP_DECLARE(apr_socket_t *) ap_get_conn_socket(conn_rec *c)
4690 return ap_get_core_module_config(c->conn_config);
4693 static int core_create_req(request_rec *r)
4695 /* Alloc the config struct and the array of request notes in
4696 * a single block for efficiency
4698 core_request_config *req_cfg;
4700 req_cfg = apr_pcalloc(r->pool, sizeof(core_request_config) +
4701 sizeof(void *) * num_request_notes);
4702 req_cfg->notes = (void **)((char *)req_cfg + sizeof(core_request_config));
4704 /* ### temporarily enable script delivery as the default */
4705 req_cfg->deliver_script = 1;
4708 core_request_config *main_req_cfg = (core_request_config *)
4709 ap_get_core_module_config(r->main->request_config);
4710 req_cfg->bb = main_req_cfg->bb;
4713 req_cfg->bb = apr_brigade_create(r->pool, r->connection->bucket_alloc);
4716 ap_set_core_module_config(r->request_config, req_cfg);
4721 static int core_create_proxy_req(request_rec *r, request_rec *pr)
4723 return core_create_req(pr);
4726 static conn_rec *core_create_conn(apr_pool_t *ptrans, server_rec *s,
4727 apr_socket_t *csd, long id, void *sbh,
4728 apr_bucket_alloc_t *alloc)
4731 conn_rec *c = (conn_rec *) apr_pcalloc(ptrans, sizeof(conn_rec));
4732 core_server_config *sconf = ap_get_core_module_config(s->module_config);
4735 (void)ap_update_child_status(c->sbh, SERVER_BUSY_READ, (request_rec *)NULL);
4737 /* Got a connection structure, so initialize what fields we can
4738 * (the rest are zeroed out by pcalloc).
4740 c->conn_config = ap_create_conn_config(ptrans);
4741 c->notes = apr_table_make(ptrans, 5);
4744 if ((rv = apr_socket_addr_get(&c->local_addr, APR_LOCAL, csd))
4746 ap_log_error(APLOG_MARK, APLOG_INFO, rv, s, APLOGNO(00137)
4747 "apr_socket_addr_get(APR_LOCAL)");
4748 apr_socket_close(csd);
4752 apr_sockaddr_ip_get(&c->local_ip, c->local_addr);
4753 if ((rv = apr_socket_addr_get(&c->client_addr, APR_REMOTE, csd))
4755 ap_log_error(APLOG_MARK, APLOG_INFO, rv, s, APLOGNO(00138)
4756 "apr_socket_addr_get(APR_REMOTE)");
4757 apr_socket_close(csd);
4761 apr_sockaddr_ip_get(&c->client_ip, c->client_addr);
4765 c->bucket_alloc = alloc;
4767 c->clogging_input_filters = 0;
4769 if (sconf->conn_log_level) {
4771 conn_log_config *conf;
4772 const struct ap_logconf *log = NULL;
4773 struct ap_logconf *merged;
4775 for (i = 0; i < sconf->conn_log_level->nelts; i++) {
4776 conf = APR_ARRAY_IDX(sconf->conn_log_level, i, conn_log_config *);
4777 if (apr_ipsubnet_test(conf->subnet, c->client_addr))
4781 merged = ap_new_log_config(c->pool, log);
4782 ap_merge_log_config(&s->log, merged);
4790 static int core_pre_connection(conn_rec *c, void *csd)
4792 core_net_rec *net = apr_palloc(c->pool, sizeof(*net));
4795 /* The Nagle algorithm says that we should delay sending partial
4796 * packets in hopes of getting more data. We don't want to do
4797 * this; we are not telnet. There are bad interactions between
4798 * persistent connections and Nagle's algorithm that have very severe
4799 * performance penalties. (Failing to disable Nagle is not much of a
4800 * problem with simple HTTP.)
4802 rv = apr_socket_opt_set(csd, APR_TCP_NODELAY, 1);
4803 if (rv != APR_SUCCESS && rv != APR_ENOTIMPL) {
4804 /* expected cause is that the client disconnected already,
4805 * hence the debug level
4807 ap_log_cerror(APLOG_MARK, APLOG_DEBUG, rv, c, APLOGNO(00139)
4808 "apr_socket_opt_set(APR_TCP_NODELAY)");
4811 /* The core filter requires the timeout mode to be set, which
4812 * incidentally sets the socket to be nonblocking. If this
4813 * is not initialized correctly, Linux - for example - will
4814 * be initially blocking, while Solaris will be non blocking
4815 * and any initial read will fail.
4817 rv = apr_socket_timeout_set(csd, c->base_server->timeout);
4818 if (rv != APR_SUCCESS) {
4819 /* expected cause is that the client disconnected already */
4820 ap_log_cerror(APLOG_MARK, APLOG_DEBUG, rv, c, APLOGNO(00140)
4821 "apr_socket_timeout_set");
4826 net->out_ctx = NULL;
4827 net->client_socket = csd;
4829 ap_set_core_module_config(net->c->conn_config, csd);
4830 ap_add_input_filter_handle(ap_core_input_filter_handle, net, NULL, net->c);
4831 ap_add_output_filter_handle(ap_core_output_filter_handle, net, NULL, net->c);
4835 AP_DECLARE(int) ap_state_query(int query)
4838 case AP_SQ_MAIN_STATE:
4839 return ap_main_state;
4840 case AP_SQ_RUN_MODE:
4842 case AP_SQ_CONFIG_GEN:
4843 return ap_config_generation;
4845 return AP_SQ_NOT_SUPPORTED;
4849 static apr_random_t *rng = NULL;
4851 static apr_thread_mutex_t *rng_mutex = NULL;
4854 static void core_child_init(apr_pool_t *pchild, server_rec *s)
4859 if (ap_mpm_query(AP_MPMQ_IS_THREADED, &threaded_mpm) == APR_SUCCESS
4862 apr_thread_mutex_create(&rng_mutex, APR_THREAD_MUTEX_DEFAULT, pchild);
4865 /* The MPMs use plain fork() and not apr_proc_fork(), so we have to call
4866 * apr_random_after_fork() manually in the child
4868 proc.pid = getpid();
4869 apr_random_after_fork(&proc);
4872 AP_CORE_DECLARE(void) ap_random_parent_after_fork(void)
4875 * To ensure that the RNG state in the parent changes after the fork, we
4876 * pull some data from the RNG and discard it. This ensures that the RNG
4877 * states in the children are different even after the pid wraps around.
4878 * As we only use apr_random for insecure random bytes, pulling 2 bytes
4880 * XXX: APR should probably have some dedicated API to do this, but it
4881 * XXX: currently doesn't.
4884 apr_random_insecure_bytes(rng, &data, sizeof(data));
4887 AP_CORE_DECLARE(void) ap_init_rng(apr_pool_t *p)
4889 unsigned char seed[8];
4891 rng = apr_random_standard_new(p);
4893 rv = apr_generate_random_bytes(seed, sizeof(seed));
4894 if (rv != APR_SUCCESS)
4896 apr_random_add_entropy(rng, seed, sizeof(seed));
4897 rv = apr_random_insecure_ready(rng);
4898 } while (rv == APR_ENOTENOUGHENTROPY);
4899 if (rv == APR_SUCCESS)
4902 ap_log_error(APLOG_MARK, APLOG_CRIT, rv, NULL, APLOGNO(00141)
4903 "Could not initialize random number generator");
4907 AP_DECLARE(void) ap_random_insecure_bytes(void *buf, apr_size_t size)
4911 apr_thread_mutex_lock(rng_mutex);
4913 /* apr_random_insecure_bytes can only fail with APR_ENOTENOUGHENTROPY,
4914 * and we have ruled that out during initialization. Therefore we don't
4915 * need to check the return code.
4917 apr_random_insecure_bytes(rng, buf, size);
4920 apr_thread_mutex_unlock(rng_mutex);
4925 * Finding a random number in a range.
4926 * n' = a + n(b-a+1)/(M+1)
4928 * n' = random number in range
4929 * a = low end of range
4930 * b = high end of range
4931 * n = random number of 0..M
4933 * Algorithm 'borrowed' from PHP's rand() function.
4935 #define RAND_RANGE(__n, __min, __max, __tmax) \
4936 (__n) = (__min) + (long) ((double) ((__max) - (__min) + 1.0) * ((__n) / ((__tmax) + 1.0)))
4937 AP_DECLARE(apr_uint32_t) ap_random_pick(apr_uint32_t min, apr_uint32_t max)
4939 apr_uint32_t number;
4940 #if (!__GNUC__ || __GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8) || \
4941 !__sparc__ || APR_SIZEOF_VOIDP != 8)
4942 /* This triggers a gcc bug on sparc/64bit with gcc < 4.8, PR 52900 */
4945 ap_random_insecure_bytes(&num16, sizeof(num16));
4946 RAND_RANGE(num16, min, max, APR_UINT16_MAX);
4952 ap_random_insecure_bytes(&number, sizeof(number));
4953 RAND_RANGE(number, min, max, APR_UINT32_MAX);
4958 static apr_status_t core_insert_network_bucket(conn_rec *c,
4959 apr_bucket_brigade *bb,
4960 apr_socket_t *socket)
4962 apr_bucket *e = apr_bucket_socket_create(socket, c->bucket_alloc);
4963 APR_BRIGADE_INSERT_TAIL(bb, e);
4967 static apr_status_t core_dirwalk_stat(apr_finfo_t *finfo, request_rec *r,
4970 return apr_stat(finfo, r->filename, wanted, r->pool);
4973 static void core_dump_config(apr_pool_t *p, server_rec *s)
4975 core_server_config *sconf = ap_get_core_module_config(s->module_config);
4976 apr_file_t *out = NULL;
4978 const char **defines;
4980 if (!ap_exists_config_define("DUMP_RUN_CFG"))
4983 apr_file_open_stdout(&out, p);
4984 apr_file_printf(out, "ServerRoot: \"%s\"\n", ap_server_root);
4985 tmp = ap_server_root_relative(p, sconf->ap_document_root);
4986 apr_file_printf(out, "Main DocumentRoot: \"%s\"\n", tmp);
4987 if (s->error_fname[0] != '|' && strcmp(s->error_fname, "syslog") != 0)
4988 tmp = ap_server_root_relative(p, s->error_fname);
4990 tmp = s->error_fname;
4991 apr_file_printf(out, "Main ErrorLog: \"%s\"\n", tmp);
4992 if (ap_scoreboard_fname) {
4993 tmp = ap_runtime_dir_relative(p, ap_scoreboard_fname);
4994 apr_file_printf(out, "ScoreBoardFile: \"%s\"\n", tmp);
4996 ap_dump_mutexes(p, s, out);
4997 ap_mpm_dump_pidfile(p, out);
4999 defines = (const char **)ap_server_config_defines->elts;
5000 for (i = 0; i < ap_server_config_defines->nelts; i++) {
5001 const char *name = defines[i];
5002 const char *val = NULL;
5003 if (server_config_defined_vars)
5004 val = apr_table_get(server_config_defined_vars, name);
5006 apr_file_printf(out, "Define: %s=%s\n", name, val);
5008 apr_file_printf(out, "Define: %s\n", name);
5012 static void register_hooks(apr_pool_t *p)
5014 errorlog_hash = apr_hash_make(p);
5015 ap_register_log_hooks(p);
5016 ap_register_config_hooks(p);
5019 /* create_connection and pre_connection should always be hooked
5020 * APR_HOOK_REALLY_LAST by core to give other modules the opportunity
5021 * to install alternate network transports and stop other functions
5024 ap_hook_create_connection(core_create_conn, NULL, NULL,
5025 APR_HOOK_REALLY_LAST);
5026 ap_hook_pre_connection(core_pre_connection, NULL, NULL,
5027 APR_HOOK_REALLY_LAST);
5029 ap_hook_pre_config(core_pre_config, NULL, NULL, APR_HOOK_REALLY_FIRST);
5030 ap_hook_post_config(core_post_config,NULL,NULL,APR_HOOK_REALLY_FIRST);
5031 ap_hook_check_config(core_check_config,NULL,NULL,APR_HOOK_FIRST);
5032 ap_hook_test_config(core_dump_config,NULL,NULL,APR_HOOK_FIRST);
5033 ap_hook_translate_name(ap_core_translate,NULL,NULL,APR_HOOK_REALLY_LAST);
5034 ap_hook_map_to_storage(core_map_to_storage,NULL,NULL,APR_HOOK_REALLY_LAST);
5035 ap_hook_open_logs(ap_open_logs,NULL,NULL,APR_HOOK_REALLY_FIRST);
5036 ap_hook_child_init(core_child_init,NULL,NULL,APR_HOOK_REALLY_FIRST);
5037 ap_hook_child_init(ap_logs_child_init,NULL,NULL,APR_HOOK_MIDDLE);
5038 ap_hook_handler(default_handler,NULL,NULL,APR_HOOK_REALLY_LAST);
5039 /* FIXME: I suspect we can eliminate the need for these do_nothings - Ben */
5040 ap_hook_type_checker(do_nothing,NULL,NULL,APR_HOOK_REALLY_LAST);
5041 ap_hook_fixups(core_override_type,NULL,NULL,APR_HOOK_REALLY_FIRST);
5042 ap_hook_create_request(core_create_req, NULL, NULL, APR_HOOK_MIDDLE);
5043 APR_OPTIONAL_HOOK(proxy, create_req, core_create_proxy_req, NULL, NULL,
5045 ap_hook_pre_mpm(ap_create_scoreboard, NULL, NULL, APR_HOOK_MIDDLE);
5046 ap_hook_child_status(ap_core_child_status, NULL, NULL, APR_HOOK_MIDDLE);
5047 ap_hook_insert_network_bucket(core_insert_network_bucket, NULL, NULL,
5048 APR_HOOK_REALLY_LAST);
5049 ap_hook_dirwalk_stat(core_dirwalk_stat, NULL, NULL, APR_HOOK_REALLY_LAST);
5051 /* register the core's insert_filter hook and register core-provided
5054 ap_hook_insert_filter(core_insert_filter, NULL, NULL, APR_HOOK_MIDDLE);
5056 ap_core_input_filter_handle =
5057 ap_register_input_filter("CORE_IN", ap_core_input_filter,
5058 NULL, AP_FTYPE_NETWORK);
5059 ap_content_length_filter_handle =
5060 ap_register_output_filter("CONTENT_LENGTH", ap_content_length_filter,
5061 NULL, AP_FTYPE_PROTOCOL);
5062 ap_core_output_filter_handle =
5063 ap_register_output_filter("CORE", ap_core_output_filter,
5064 NULL, AP_FTYPE_NETWORK);
5065 ap_subreq_core_filter_handle =
5066 ap_register_output_filter("SUBREQ_CORE", ap_sub_req_output_filter,
5067 NULL, AP_FTYPE_CONTENT_SET);
5069 ap_register_output_filter("OLD_WRITE", ap_old_write_filter,
5070 NULL, AP_FTYPE_RESOURCE - 10);
5073 AP_DECLARE_MODULE(core) = {
5075 AP_PLATFORM_REWRITE_ARGS_HOOK, /* hook to run before apache parses args */
5076 create_core_dir_config, /* create per-directory config structure */
5077 merge_core_dir_configs, /* merge per-directory config structures */
5078 create_core_server_config, /* create per-server config structure */
5079 merge_core_server_configs, /* merge per-server config structures */
5080 core_cmds, /* command apr_table_t */
5081 register_hooks /* register hooks */