1 /* Copyright 2001-2004 The Apache Software Foundation
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
17 #include "apr_strings.h"
19 #include "apr_fnmatch.h"
21 #include "apr_thread_proc.h" /* for RLIMIT stuff */
22 #include "apr_hooks.h"
24 #define APR_WANT_IOVEC
25 #define APR_WANT_STRFUNC
26 #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"
45 #include "mpm_common.h"
46 #include "scoreboard.h"
48 #include "mod_proxy.h"
49 #include "ap_listen.h"
51 /* LimitXMLRequestBody handling */
52 #define AP_LIMIT_UNSET ((long) -1)
53 #define AP_DEFAULT_LIMIT_XML_BODY ((size_t)1000000)
55 #define AP_MIN_SENDFILE_BYTES (256)
58 APR_HOOK_LINK(get_mgmt_items)
61 AP_IMPLEMENT_HOOK_RUN_ALL(int, get_mgmt_items,
62 (apr_pool_t *p, const char *val, apr_hash_t *ht),
63 (p, val, ht), OK, DECLINED)
65 /* Server core module... This module provides support for really basic
66 * server operations, including options and commands which control the
67 * operation of other modules. Consider this the bureaucracy module.
69 * The core module also defines handlers, etc., do handle just enough
70 * to allow a server with the core module ONLY to actually serve documents
71 * (though it slaps DefaultType on all of 'em); this was useful in testing,
72 * but may not be worth preserving.
74 * This file could almost be mod_core.c, except for the stuff which affects
75 * the http_conf_globals.
78 /* Handles for core filters */
79 AP_DECLARE_DATA ap_filter_rec_t *ap_subreq_core_filter_handle;
80 AP_DECLARE_DATA ap_filter_rec_t *ap_core_output_filter_handle;
81 AP_DECLARE_DATA ap_filter_rec_t *ap_content_length_filter_handle;
82 AP_DECLARE_DATA ap_filter_rec_t *ap_net_time_filter_handle;
83 AP_DECLARE_DATA ap_filter_rec_t *ap_core_input_filter_handle;
85 static void *create_core_dir_config(apr_pool_t *a, char *dir)
87 core_dir_config *conf;
90 conf = (core_dir_config *)apr_pcalloc(a, sizeof(core_dir_config));
92 /* conf->r and conf->d[_*] are initialized by dirsection() or left NULL */
94 conf->opts = dir ? OPT_UNSET : OPT_UNSET|OPT_ALL;
95 conf->opts_add = conf->opts_remove = OPT_NONE;
96 conf->override = dir ? OR_UNSET : OR_UNSET|OR_ALL;
98 conf->content_md5 = 2;
99 conf->accept_path_info = 3;
101 conf->use_canonical_name = USE_CANONICAL_NAME_UNSET;
103 conf->hostname_lookups = HOSTNAME_LOOKUP_UNSET;
104 conf->satisfy = apr_palloc(a, sizeof(*conf->satisfy) * METHODS);
105 for (i = 0; i < METHODS; ++i) {
106 conf->satisfy[i] = SATISFY_NOSPEC;
110 conf->limit_cpu = NULL;
112 #if defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined(RLIMIT_AS)
113 conf->limit_mem = NULL;
116 conf->limit_nproc = NULL;
119 conf->limit_req_body = 0;
120 conf->limit_xml_body = AP_LIMIT_UNSET;
121 conf->sec_file = apr_array_make(a, 2, sizeof(ap_conf_vector_t *));
123 conf->server_signature = srv_sig_unset;
125 conf->add_default_charset = ADD_DEFAULT_CHARSET_UNSET;
126 conf->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME;
128 /* Overriding all negotiation
130 conf->mime_type = NULL;
131 conf->handler = NULL;
132 conf->output_filters = NULL;
133 conf->input_filters = NULL;
136 * Flag for use of inodes in ETags.
138 conf->etag_bits = ETAG_UNSET;
139 conf->etag_add = ETAG_UNSET;
140 conf->etag_remove = ETAG_UNSET;
142 conf->enable_mmap = ENABLE_MMAP_UNSET;
143 conf->enable_sendfile = ENABLE_SENDFILE_UNSET;
144 conf->allow_encoded_slashes = 0;
150 * Overlay one hash table of ct_output_filters onto another
152 static void *merge_ct_filters(apr_pool_t *p,
155 const void *overlay_val,
156 const void *base_val,
159 ap_filter_rec_t *cur;
160 const ap_filter_rec_t *overlay_info = (const ap_filter_rec_t *)overlay_val;
161 const ap_filter_rec_t *base_info = (const ap_filter_rec_t *)base_val;
165 while (overlay_info) {
166 ap_filter_rec_t *new;
168 new = apr_pcalloc(p, sizeof(ap_filter_rec_t));
169 new->name = apr_pstrdup(p, overlay_info->name);
172 overlay_info = overlay_info->next;
179 /* We can't have dups. */
182 if (!strcasecmp(base_info->name, f->name)) {
191 f = apr_pcalloc(p, sizeof(ap_filter_rec_t));
192 f->name = apr_pstrdup(p, base_info->name);
197 base_info = base_info->next;
203 static void *merge_core_dir_configs(apr_pool_t *a, void *basev, void *newv)
205 core_dir_config *base = (core_dir_config *)basev;
206 core_dir_config *new = (core_dir_config *)newv;
207 core_dir_config *conf;
210 /* Create this conf by duplicating the base, replacing elements
211 * (or creating copies for merging) where new-> values exist.
213 conf = (core_dir_config *)apr_palloc(a, sizeof(core_dir_config));
214 memcpy(conf, base, sizeof(core_dir_config));
217 conf->d_is_fnmatch = new->d_is_fnmatch;
218 conf->d_components = new->d_components;
221 if (new->opts & OPT_UNSET) {
222 /* there was no explicit setting of new->opts, so we merge
223 * preserve the invariant (opts_add & opts_remove) == 0
225 conf->opts_add = (conf->opts_add & ~new->opts_remove) | new->opts_add;
226 conf->opts_remove = (conf->opts_remove & ~new->opts_add)
228 conf->opts = (conf->opts & ~conf->opts_remove) | conf->opts_add;
229 if ((base->opts & OPT_INCNOEXEC) && (new->opts & OPT_INCLUDES)) {
230 conf->opts = (conf->opts & ~OPT_INCNOEXEC) | OPT_INCLUDES;
234 /* otherwise we just copy, because an explicit opts setting
235 * overrides all earlier +/- modifiers
237 conf->opts = new->opts;
238 conf->opts_add = new->opts_add;
239 conf->opts_remove = new->opts_remove;
242 if (!(new->override & OR_UNSET)) {
243 conf->override = new->override;
246 if (new->ap_default_type) {
247 conf->ap_default_type = new->ap_default_type;
250 if (new->ap_auth_type) {
251 conf->ap_auth_type = new->ap_auth_type;
254 if (new->ap_auth_name) {
255 conf->ap_auth_name = new->ap_auth_name;
258 if (new->ap_requires) {
259 conf->ap_requires = new->ap_requires;
262 if (conf->response_code_strings == NULL) {
263 conf->response_code_strings = new->response_code_strings;
265 else if (new->response_code_strings != NULL) {
266 /* If we merge, the merge-result must have it's own array
268 conf->response_code_strings = apr_palloc(a,
269 sizeof(*conf->response_code_strings) * RESPONSE_CODES);
270 memcpy(conf->response_code_strings, base->response_code_strings,
271 sizeof(*conf->response_code_strings) * RESPONSE_CODES);
273 for (i = 0; i < RESPONSE_CODES; ++i) {
274 conf->response_code_strings[i] = new->response_code_strings[i];
277 /* Otherwise we simply use the base->response_code_strings array
280 if (new->hostname_lookups != HOSTNAME_LOOKUP_UNSET) {
281 conf->hostname_lookups = new->hostname_lookups;
284 if ((new->content_md5 & 2) == 0) {
285 conf->content_md5 = new->content_md5;
288 if (new->accept_path_info != 3) {
289 conf->accept_path_info = new->accept_path_info;
292 if (new->use_canonical_name != USE_CANONICAL_NAME_UNSET) {
293 conf->use_canonical_name = new->use_canonical_name;
297 if (new->limit_cpu) {
298 conf->limit_cpu = new->limit_cpu;
302 #if defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined(RLIMIT_AS)
303 if (new->limit_mem) {
304 conf->limit_mem = new->limit_mem;
309 if (new->limit_nproc) {
310 conf->limit_nproc = new->limit_nproc;
314 if (new->limit_req_body) {
315 conf->limit_req_body = new->limit_req_body;
318 if (new->limit_xml_body != AP_LIMIT_UNSET)
319 conf->limit_xml_body = new->limit_xml_body;
321 conf->limit_xml_body = base->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 it's 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
334 for (i = 0; i < METHODS; ++i) {
335 if (new->satisfy[i] != SATISFY_NOSPEC) {
336 conf->satisfy[i] = new->satisfy[i];
340 if (new->server_signature != srv_sig_unset) {
341 conf->server_signature = new->server_signature;
344 if (new->add_default_charset != ADD_DEFAULT_CHARSET_UNSET) {
345 conf->add_default_charset = new->add_default_charset;
346 conf->add_default_charset_name = new->add_default_charset_name;
349 /* Overriding all negotiation
351 if (new->mime_type) {
352 conf->mime_type = new->mime_type;
356 conf->handler = new->handler;
359 if (new->output_filters) {
360 conf->output_filters = new->output_filters;
363 if (new->input_filters) {
364 conf->input_filters = new->input_filters;
367 if (conf->ct_output_filters && new->ct_output_filters) {
368 conf->ct_output_filters = apr_hash_merge(a,
369 new->ct_output_filters,
370 conf->ct_output_filters,
374 else if (new->ct_output_filters) {
375 conf->ct_output_filters = apr_hash_copy(a, new->ct_output_filters);
377 else if (conf->ct_output_filters) {
378 /* That memcpy above isn't enough. */
379 conf->ct_output_filters = apr_hash_copy(a, base->ct_output_filters);
383 * Now merge the setting of the FileETag directive.
385 if (new->etag_bits == ETAG_UNSET) {
387 (conf->etag_add & (~ new->etag_remove)) | new->etag_add;
389 (conf->opts_remove & (~ new->etag_add)) | new->etag_remove;
391 (conf->etag_bits & (~ conf->etag_remove)) | conf->etag_add;
394 conf->etag_bits = new->etag_bits;
395 conf->etag_add = new->etag_add;
396 conf->etag_remove = new->etag_remove;
399 if (conf->etag_bits != ETAG_NONE) {
400 conf->etag_bits &= (~ ETAG_NONE);
403 if (new->enable_mmap != ENABLE_MMAP_UNSET) {
404 conf->enable_mmap = new->enable_mmap;
407 if (new->enable_sendfile != ENABLE_SENDFILE_UNSET) {
408 conf->enable_sendfile = new->enable_sendfile;
411 conf->allow_encoded_slashes = new->allow_encoded_slashes;
416 static void *create_core_server_config(apr_pool_t *a, server_rec *s)
418 core_server_config *conf;
419 int is_virtual = s->is_virtual;
421 conf = (core_server_config *)apr_pcalloc(a, sizeof(core_server_config));
424 conf->gprof_dir = NULL;
427 conf->access_name = is_virtual ? NULL : DEFAULT_ACCESS_FNAME;
428 conf->ap_document_root = is_virtual ? NULL : DOCUMENT_LOCATION;
429 conf->sec_dir = apr_array_make(a, 40, sizeof(ap_conf_vector_t *));
430 conf->sec_url = apr_array_make(a, 40, sizeof(ap_conf_vector_t *));
432 /* recursion stopper */
433 conf->redirect_limit = 0; /* 0 == unset */
434 conf->subreq_limit = 0;
439 static void *merge_core_server_configs(apr_pool_t *p, void *basev, void *virtv)
441 core_server_config *base = (core_server_config *)basev;
442 core_server_config *virt = (core_server_config *)virtv;
443 core_server_config *conf;
445 conf = (core_server_config *)apr_palloc(p, sizeof(core_server_config));
446 memcpy(conf, virt, sizeof(core_server_config));
448 if (!conf->access_name) {
449 conf->access_name = base->access_name;
452 if (!conf->ap_document_root) {
453 conf->ap_document_root = base->ap_document_root;
456 conf->sec_dir = apr_array_append(p, base->sec_dir, virt->sec_dir);
457 conf->sec_url = apr_array_append(p, base->sec_url, virt->sec_url);
459 conf->redirect_limit = virt->redirect_limit
460 ? virt->redirect_limit
461 : base->redirect_limit;
463 conf->subreq_limit = virt->subreq_limit
465 : base->subreq_limit;
470 /* Add per-directory configuration entry (for <directory> section);
471 * these are part of the core server config.
474 AP_CORE_DECLARE(void) ap_add_per_dir_conf(server_rec *s, void *dir_config)
476 core_server_config *sconf = ap_get_module_config(s->module_config,
478 void **new_space = (void **)apr_array_push(sconf->sec_dir);
480 *new_space = dir_config;
483 AP_CORE_DECLARE(void) ap_add_per_url_conf(server_rec *s, void *url_config)
485 core_server_config *sconf = ap_get_module_config(s->module_config,
487 void **new_space = (void **)apr_array_push(sconf->sec_url);
489 *new_space = url_config;
492 AP_CORE_DECLARE(void) ap_add_file_conf(core_dir_config *conf, void *url_config)
494 void **new_space = (void **)apr_array_push(conf->sec_file);
496 *new_space = url_config;
499 /* We need to do a stable sort, qsort isn't stable. So to make it stable
500 * we'll be maintaining the original index into the list, and using it
501 * as the minor key during sorting. The major key is the number of
502 * components (where the root component is zero).
504 struct reorder_sort_rec {
505 ap_conf_vector_t *elt;
509 static int reorder_sorter(const void *va, const void *vb)
511 const struct reorder_sort_rec *a = va;
512 const struct reorder_sort_rec *b = vb;
513 core_dir_config *core_a;
514 core_dir_config *core_b;
516 core_a = ap_get_module_config(a->elt, &core_module);
517 core_b = ap_get_module_config(b->elt, &core_module);
519 /* a regex always sorts after a non-regex
521 if (!core_a->r && core_b->r) {
524 else if (core_a->r && !core_b->r) {
528 /* we always sort next by the number of components
530 if (core_a->d_components < core_b->d_components) {
533 else if (core_a->d_components > core_b->d_components) {
537 /* They have the same number of components, we now have to compare
538 * the minor key to maintain the original order (from the config.)
540 return a->orig_index - b->orig_index;
543 void ap_core_reorder_directories(apr_pool_t *p, server_rec *s)
545 core_server_config *sconf;
546 apr_array_header_t *sec_dir;
547 struct reorder_sort_rec *sortbin;
549 ap_conf_vector_t **elts;
553 sconf = ap_get_module_config(s->module_config, &core_module);
554 sec_dir = sconf->sec_dir;
555 nelts = sec_dir->nelts;
556 elts = (ap_conf_vector_t **)sec_dir->elts;
559 /* simple case of already being sorted... */
560 /* We're not checking this condition to be fast... we're checking
561 * it to avoid trying to palloc zero bytes, which can trigger some
562 * memory debuggers to barf
567 /* we have to allocate tmp space to do a stable sort */
568 apr_pool_create(&tmp, p);
569 sortbin = apr_palloc(tmp, sec_dir->nelts * sizeof(*sortbin));
570 for (i = 0; i < nelts; ++i) {
571 sortbin[i].orig_index = i;
572 sortbin[i].elt = elts[i];
575 qsort(sortbin, nelts, sizeof(*sortbin), reorder_sorter);
577 /* and now copy back to the original array */
578 for (i = 0; i < nelts; ++i) {
579 elts[i] = sortbin[i].elt;
582 apr_pool_destroy(tmp);
585 /*****************************************************************
587 * There are some elements of the core config structures in which
588 * other modules have a legitimate interest (this is ugly, but necessary
589 * to preserve NCSA back-compatibility). So, we have a bunch of accessors
593 AP_DECLARE(int) ap_allow_options(request_rec *r)
595 core_dir_config *conf =
596 (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module);
601 AP_DECLARE(int) ap_allow_overrides(request_rec *r)
603 core_dir_config *conf;
604 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
607 return conf->override;
610 AP_DECLARE(const char *) ap_auth_type(request_rec *r)
612 core_dir_config *conf;
614 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
617 return conf->ap_auth_type;
620 AP_DECLARE(const char *) ap_auth_name(request_rec *r)
622 core_dir_config *conf;
624 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
627 return conf->ap_auth_name;
630 AP_DECLARE(const char *) ap_default_type(request_rec *r)
632 core_dir_config *conf;
634 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
637 return conf->ap_default_type
638 ? conf->ap_default_type
639 : DEFAULT_CONTENT_TYPE;
642 AP_DECLARE(const char *) ap_document_root(request_rec *r) /* Don't use this! */
644 core_server_config *conf;
646 conf = (core_server_config *)ap_get_module_config(r->server->module_config,
649 return conf->ap_document_root;
652 AP_DECLARE(const apr_array_header_t *) ap_requires(request_rec *r)
654 core_dir_config *conf;
656 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
659 return conf->ap_requires;
662 AP_DECLARE(int) ap_satisfies(request_rec *r)
664 core_dir_config *conf;
666 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
669 return conf->satisfy[r->method_number];
672 /* Should probably just get rid of this... the only code that cares is
673 * part of the core anyway (and in fact, it isn't publicised to other
677 char *ap_response_code_string(request_rec *r, int error_index)
679 core_dir_config *dirconf;
680 core_request_config *reqconf;
682 /* check for string registered via ap_custom_response() first */
683 reqconf = (core_request_config *)ap_get_module_config(r->request_config,
685 if (reqconf->response_code_strings != NULL &&
686 reqconf->response_code_strings[error_index] != NULL) {
687 return reqconf->response_code_strings[error_index];
690 /* check for string specified via ErrorDocument */
691 dirconf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
694 if (dirconf->response_code_strings == NULL) {
698 return dirconf->response_code_strings[error_index];
702 /* Code from Harald Hanche-Olsen <hanche@imf.unit.no> */
703 static APR_INLINE void do_double_reverse (conn_rec *conn)
708 if (conn->double_reverse) {
713 if (conn->remote_host == NULL || conn->remote_host[0] == '\0') {
714 /* single reverse failed, so don't bother */
715 conn->double_reverse = -1;
719 rv = apr_sockaddr_info_get(&sa, conn->remote_host, APR_UNSPEC, 0, 0, conn->pool);
720 if (rv == APR_SUCCESS) {
722 if (apr_sockaddr_equal(sa, conn->remote_addr)) {
723 conn->double_reverse = 1;
731 conn->double_reverse = -1;
734 AP_DECLARE(const char *) ap_get_remote_host(conn_rec *conn, void *dir_config,
735 int type, int *str_is_ip)
737 int hostname_lookups;
738 int ignored_str_is_ip;
740 if (!str_is_ip) { /* caller doesn't want to know */
741 str_is_ip = &ignored_str_is_ip;
745 /* If we haven't checked the host name, and we want to */
748 ((core_dir_config *)ap_get_module_config(dir_config, &core_module))
751 if (hostname_lookups == HOSTNAME_LOOKUP_UNSET) {
752 hostname_lookups = HOSTNAME_LOOKUP_OFF;
757 hostname_lookups = HOSTNAME_LOOKUP_OFF;
760 if (type != REMOTE_NOLOOKUP
761 && conn->remote_host == NULL
762 && (type == REMOTE_DOUBLE_REV
763 || hostname_lookups != HOSTNAME_LOOKUP_OFF)) {
765 if (apr_getnameinfo(&conn->remote_host, conn->remote_addr, 0)
767 ap_str_tolower(conn->remote_host);
769 if (hostname_lookups == HOSTNAME_LOOKUP_DOUBLE) {
770 do_double_reverse(conn);
771 if (conn->double_reverse != 1) {
772 conn->remote_host = NULL;
777 /* if failed, set it to the NULL string to indicate error */
778 if (conn->remote_host == NULL) {
779 conn->remote_host = "";
783 if (type == REMOTE_DOUBLE_REV) {
784 do_double_reverse(conn);
785 if (conn->double_reverse == -1) {
791 * Return the desired information; either the remote DNS name, if found,
792 * or either NULL (if the hostname was requested) or the IP address
793 * (if any identifier was requested).
795 if (conn->remote_host != NULL && conn->remote_host[0] != '\0') {
796 return conn->remote_host;
799 if (type == REMOTE_HOST || type == REMOTE_DOUBLE_REV) {
804 return conn->remote_ip;
810 * Optional function coming from mod_ident, used for looking up ident user
812 static APR_OPTIONAL_FN_TYPE(ap_ident_lookup) *ident_lookup;
814 AP_DECLARE(const char *) ap_get_remote_logname(request_rec *r)
816 if (r->connection->remote_logname != NULL) {
817 return r->connection->remote_logname;
821 return ident_lookup(r);
827 /* There are two options regarding what the "name" of a server is. The
828 * "canonical" name as defined by ServerName and Port, or the "client's
829 * name" as supplied by a possible Host: header or full URI. We never
830 * trust the port passed in the client's headers, we always use the
831 * port of the actual socket.
833 * The DNS option to UseCanonicalName causes this routine to do a
834 * reverse lookup on the local IP address of the connection and use
835 * that for the ServerName. This makes its value more reliable while
836 * at the same time allowing Demon's magic virtual hosting to work.
837 * The assumption is that DNS lookups are sufficiently quick...
840 AP_DECLARE(const char *) ap_get_server_name(request_rec *r)
842 conn_rec *conn = r->connection;
845 d = (core_dir_config *)ap_get_module_config(r->per_dir_config,
848 if (d->use_canonical_name == USE_CANONICAL_NAME_OFF) {
849 return r->hostname ? r->hostname : r->server->server_hostname;
852 if (d->use_canonical_name == USE_CANONICAL_NAME_DNS) {
853 if (conn->local_host == NULL) {
854 if (apr_getnameinfo(&conn->local_host,
855 conn->local_addr, 0) != APR_SUCCESS)
856 conn->local_host = apr_pstrdup(conn->pool,
857 r->server->server_hostname);
859 ap_str_tolower(conn->local_host);
863 return conn->local_host;
867 return r->server->server_hostname;
871 * Get the current server name from the request for the purposes
872 * of using in a URL. If the server name is an IPv6 literal
873 * address, it will be returned in URL format (e.g., "[fe80::1]").
875 static const char *get_server_name_for_url(request_rec *r)
877 const char *plain_server_name = ap_get_server_name(r);
880 if (ap_strchr_c(plain_server_name, ':')) { /* IPv6 literal? */
881 return apr_psprintf(r->pool, "[%s]", plain_server_name);
884 return plain_server_name;
887 AP_DECLARE(apr_port_t) ap_get_server_port(const request_rec *r)
891 (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module);
893 if (d->use_canonical_name == USE_CANONICAL_NAME_OFF
894 || d->use_canonical_name == USE_CANONICAL_NAME_DNS) {
896 /* With UseCanonicalName off Apache will form self-referential
897 * URLs using the hostname and port supplied by the client if
898 * any are supplied (otherwise it will use the canonical name).
900 port = r->parsed_uri.port_str ? r->parsed_uri.port :
901 r->connection->local_addr->port ? r->connection->local_addr->port :
902 r->server->port ? r->server->port :
905 else { /* d->use_canonical_name == USE_CANONICAL_NAME_ON */
907 /* With UseCanonicalName on (and in all versions prior to 1.3)
908 * Apache will use the hostname and port specified in the
909 * ServerName directive to construct a canonical name for the
910 * server. (If no port was specified in the ServerName
911 * directive, Apache uses the port supplied by the client if
912 * any is supplied, and finally the default port for the protocol
915 port = r->server->port ? r->server->port :
916 r->connection->local_addr->port ? r->connection->local_addr->port :
924 AP_DECLARE(char *) ap_construct_url(apr_pool_t *p, const char *uri,
927 unsigned port = ap_get_server_port(r);
928 const char *host = get_server_name_for_url(r);
930 if (ap_is_default_port(port, r)) {
931 return apr_pstrcat(p, ap_http_method(r), "://", host, uri, NULL);
934 return apr_psprintf(p, "%s://%s:%u%s", ap_http_method(r), host, port, uri);
937 AP_DECLARE(apr_off_t) ap_get_limit_req_body(const request_rec *r)
940 (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module);
942 return d->limit_req_body;
946 /*****************************************************************
948 * Commands... this module handles almost all of the NCSA httpd.conf
949 * commands, but most of the old srm.conf is in the the modules.
953 /* returns a parent if it matches the given directive */
954 static const ap_directive_t * find_parent(const ap_directive_t *dirp,
957 while (dirp->parent != NULL) {
960 /* ### it would be nice to have atom-ized directives */
961 if (strcasecmp(dirp->directive, what) == 0)
968 AP_DECLARE(const char *) ap_check_cmd_context(cmd_parms *cmd,
971 const char *gt = (cmd->cmd->name[0] == '<'
972 && cmd->cmd->name[strlen(cmd->cmd->name)-1] != '>')
974 const ap_directive_t *found;
976 if ((forbidden & NOT_IN_VIRTUALHOST) && cmd->server->is_virtual) {
977 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
978 " cannot occur within <VirtualHost> section", NULL);
981 if ((forbidden & NOT_IN_LIMIT) && cmd->limited != -1) {
982 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
983 " cannot occur within <Limit> section", NULL);
986 if ((forbidden & NOT_IN_DIR_LOC_FILE) == NOT_IN_DIR_LOC_FILE) {
987 if (cmd->path != NULL) {
988 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
989 " cannot occur within <Directory/Location/Files> "
992 if (cmd->cmd->req_override & EXEC_ON_READ) {
993 /* EXEC_ON_READ must be NOT_IN_DIR_LOC_FILE, if not, it will
994 * (deliberately) segfault below in the individual tests...
1000 if (((forbidden & NOT_IN_DIRECTORY)
1001 && ((found = find_parent(cmd->directive, "<Directory"))
1002 || (found = find_parent(cmd->directive, "<DirectoryMatch"))))
1003 || ((forbidden & NOT_IN_LOCATION)
1004 && ((found = find_parent(cmd->directive, "<Location"))
1005 || (found = find_parent(cmd->directive, "<LocationMatch"))))
1006 || ((forbidden & NOT_IN_FILES)
1007 && ((found = find_parent(cmd->directive, "<Files"))
1008 || (found = find_parent(cmd->directive, "<FilesMatch"))))) {
1009 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
1010 " cannot occur within ", found->directive,
1017 static const char *set_access_name(cmd_parms *cmd, void *dummy,
1020 void *sconf = cmd->server->module_config;
1021 core_server_config *conf = ap_get_module_config(sconf, &core_module);
1023 const char *err = ap_check_cmd_context(cmd,
1024 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1029 conf->access_name = apr_pstrdup(cmd->pool, arg);
1034 static const char *set_gprof_dir(cmd_parms *cmd, void *dummy, const char *arg)
1036 void *sconf = cmd->server->module_config;
1037 core_server_config *conf = ap_get_module_config(sconf, &core_module);
1039 const char *err = ap_check_cmd_context(cmd,
1040 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1045 conf->gprof_dir = apr_pstrdup(cmd->pool, arg);
1050 static const char *set_add_default_charset(cmd_parms *cmd,
1051 void *d_, const char *arg)
1053 core_dir_config *d = d_;
1055 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1060 if (!strcasecmp(arg, "Off")) {
1061 d->add_default_charset = ADD_DEFAULT_CHARSET_OFF;
1063 else if (!strcasecmp(arg, "On")) {
1064 d->add_default_charset = ADD_DEFAULT_CHARSET_ON;
1065 d->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME;
1068 d->add_default_charset = ADD_DEFAULT_CHARSET_ON;
1069 d->add_default_charset_name = arg;
1075 static const char *set_document_root(cmd_parms *cmd, void *dummy,
1078 void *sconf = cmd->server->module_config;
1079 core_server_config *conf = ap_get_module_config(sconf, &core_module);
1081 const char *err = ap_check_cmd_context(cmd,
1082 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1087 /* Make it absolute, relative to ServerRoot */
1088 arg = ap_server_root_relative(cmd->pool, arg);
1090 /* TODO: ap_configtestonly && ap_docrootcheck && */
1091 if (apr_filepath_merge((char**)&conf->ap_document_root, NULL, arg,
1092 APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS
1093 || !ap_is_directory(cmd->pool, arg)) {
1094 if (cmd->server->is_virtual) {
1095 ap_log_perror(APLOG_MARK, APLOG_STARTUP, 0,
1097 "Warning: DocumentRoot [%s] does not exist",
1099 conf->ap_document_root = arg;
1102 return "DocumentRoot must be a directory";
1108 AP_DECLARE(void) ap_custom_response(request_rec *r, int status,
1111 core_request_config *conf =
1112 ap_get_module_config(r->request_config, &core_module);
1115 if (conf->response_code_strings == NULL) {
1116 conf->response_code_strings =
1117 apr_pcalloc(r->pool,
1118 sizeof(*conf->response_code_strings) * RESPONSE_CODES);
1121 idx = ap_index_of_response(status);
1123 conf->response_code_strings[idx] =
1124 ((ap_is_url(string) || (*string == '/')) && (*string != '"')) ?
1125 apr_pstrdup(r->pool, string) : apr_pstrcat(r->pool, "\"", string, NULL);
1128 static const char *set_error_document(cmd_parms *cmd, void *conf_,
1129 const char *errno_str, const char *msg)
1131 core_dir_config *conf = conf_;
1132 int error_number, index_number, idx500;
1133 enum { MSG, LOCAL_PATH, REMOTE_PATH } what = MSG;
1135 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1140 /* 1st parameter should be a 3 digit number, which we recognize;
1141 * convert it into an array index
1143 error_number = atoi(errno_str);
1144 idx500 = ap_index_of_response(HTTP_INTERNAL_SERVER_ERROR);
1146 if (error_number == HTTP_INTERNAL_SERVER_ERROR) {
1147 index_number = idx500;
1149 else if ((index_number = ap_index_of_response(error_number)) == idx500) {
1150 return apr_pstrcat(cmd->pool, "Unsupported HTTP response code ",
1154 /* Heuristic to determine second argument. */
1155 if (ap_strchr_c(msg,' '))
1157 else if (msg[0] == '/')
1159 else if (ap_is_url(msg))
1164 /* The entry should be ignored if it is a full URL for a 401 error */
1166 if (error_number == 401 && what == REMOTE_PATH) {
1167 ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, cmd->server,
1168 "cannot use a full URL in a 401 ErrorDocument "
1169 "directive --- ignoring!");
1171 else { /* Store it... */
1172 if (conf->response_code_strings == NULL) {
1173 conf->response_code_strings =
1174 apr_pcalloc(cmd->pool,
1175 sizeof(*conf->response_code_strings) *
1179 if (strcmp(msg, "default") == 0) {
1180 /* special case: ErrorDocument 404 default restores the
1181 * canned server error response
1183 conf->response_code_strings[index_number] = NULL;
1186 /* hack. Prefix a " if it is a msg; as that is what
1187 * http_protocol.c relies on to distinguish between
1188 * a msg and a (local) path.
1190 conf->response_code_strings[index_number] = (what == MSG) ?
1191 apr_pstrcat(cmd->pool, "\"",msg,NULL) :
1192 apr_pstrdup(cmd->pool, msg);
1199 static const char *set_override(cmd_parms *cmd, void *d_, const char *l)
1201 core_dir_config *d = d_;
1204 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1209 /* Throw a warning if we're in <Location> or <Files> */
1210 if (ap_check_cmd_context(cmd, NOT_IN_LOCATION | NOT_IN_FILES)) {
1211 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server,
1212 "Useless use of AllowOverride in line %d.",
1213 cmd->directive->line_num);
1216 d->override = OR_NONE;
1218 w = ap_getword_conf(cmd->pool, &l);
1219 if (!strcasecmp(w, "Limit")) {
1220 d->override |= OR_LIMIT;
1222 else if (!strcasecmp(w, "Options")) {
1223 d->override |= OR_OPTIONS;
1225 else if (!strcasecmp(w, "FileInfo")) {
1226 d->override |= OR_FILEINFO;
1228 else if (!strcasecmp(w, "AuthConfig")) {
1229 d->override |= OR_AUTHCFG;
1231 else if (!strcasecmp(w, "Indexes")) {
1232 d->override |= OR_INDEXES;
1234 else if (!strcasecmp(w, "None")) {
1235 d->override = OR_NONE;
1237 else if (!strcasecmp(w, "All")) {
1238 d->override = OR_ALL;
1241 return apr_pstrcat(cmd->pool, "Illegal override option ", w, NULL);
1244 d->override &= ~OR_UNSET;
1250 static const char *set_options(cmd_parms *cmd, void *d_, const char *l)
1252 core_dir_config *d = d_;
1253 allow_options_t opt;
1258 char *w = ap_getword_conf(cmd->pool, &l);
1261 if (*w == '+' || *w == '-') {
1269 if (!strcasecmp(w, "Indexes")) {
1272 else if (!strcasecmp(w, "Includes")) {
1275 else if (!strcasecmp(w, "IncludesNOEXEC")) {
1276 opt = (OPT_INCLUDES | OPT_INCNOEXEC);
1278 else if (!strcasecmp(w, "FollowSymLinks")) {
1279 opt = OPT_SYM_LINKS;
1281 else if (!strcasecmp(w, "SymLinksIfOwnerMatch")) {
1282 opt = OPT_SYM_OWNER;
1284 else if (!strcasecmp(w, "execCGI")) {
1287 else if (!strcasecmp(w, "MultiViews")) {
1290 else if (!strcasecmp(w, "RunScripts")) { /* AI backcompat. Yuck */
1291 opt = OPT_MULTI|OPT_EXECCGI;
1293 else if (!strcasecmp(w, "None")) {
1296 else if (!strcasecmp(w, "All")) {
1300 return apr_pstrcat(cmd->pool, "Illegal option ", w, NULL);
1303 /* we ensure the invariant (d->opts_add & d->opts_remove) == 0 */
1304 if (action == '-') {
1305 d->opts_remove |= opt;
1306 d->opts_add &= ~opt;
1309 else if (action == '+') {
1311 d->opts_remove &= ~opt;
1323 * Note what data should be used when forming file ETag values.
1324 * It would be nicer to do this as an ITERATE, but then we couldn't
1325 * remember the +/- state properly.
1327 static const char *set_etag_bits(cmd_parms *cmd, void *mconfig,
1330 core_dir_config *cfg;
1331 etag_components_t bit;
1339 cfg = (core_dir_config *)mconfig;
1344 while (args[0] != '\0') {
1348 token = ap_getword_conf(cmd->pool, &args);
1349 if ((*token == '+') || (*token == '-')) {
1355 * The occurrence of an absolute setting wipes
1356 * out any previous relative ones. The first such
1357 * occurrence forgets any inherited ones, too.
1360 cfg->etag_bits = ETAG_UNSET;
1361 cfg->etag_add = ETAG_UNSET;
1362 cfg->etag_remove = ETAG_UNSET;
1367 if (strcasecmp(token, "None") == 0) {
1368 if (action != '*') {
1372 cfg->etag_bits = bit = ETAG_NONE;
1376 else if (strcasecmp(token, "All") == 0) {
1377 if (action != '*') {
1382 cfg->etag_bits = bit = ETAG_ALL;
1385 else if (strcasecmp(token, "Size") == 0) {
1388 else if ((strcasecmp(token, "LMTime") == 0)
1389 || (strcasecmp(token, "MTime") == 0)
1390 || (strcasecmp(token, "LastModified") == 0)) {
1393 else if (strcasecmp(token, "INode") == 0) {
1397 return apr_pstrcat(cmd->pool, "Unknown keyword '",
1398 token, "' for ", cmd->cmd->name,
1399 " directive", NULL);
1403 return apr_pstrcat(cmd->pool, cmd->cmd->name, " keyword '",
1404 token, "' cannot be used with '+' or '-'",
1408 if (action == '+') {
1410 * Make sure it's in the 'add' list and absent from the
1413 cfg->etag_add |= bit;
1414 cfg->etag_remove &= (~ bit);
1416 else if (action == '-') {
1417 cfg->etag_remove |= bit;
1418 cfg->etag_add &= (~ bit);
1422 * Non-relative values wipe out any + or - values
1423 * accumulated so far.
1425 cfg->etag_bits |= bit;
1426 cfg->etag_add = ETAG_UNSET;
1427 cfg->etag_remove = ETAG_UNSET;
1433 * Any setting at all will clear the 'None' and 'Unset' bits.
1436 if (cfg->etag_add != ETAG_UNSET) {
1437 cfg->etag_add &= (~ ETAG_UNSET);
1440 if (cfg->etag_remove != ETAG_UNSET) {
1441 cfg->etag_remove &= (~ ETAG_UNSET);
1445 cfg->etag_bits &= (~ ETAG_UNSET);
1447 if ((cfg->etag_bits & ETAG_NONE) != ETAG_NONE) {
1448 cfg->etag_bits &= (~ ETAG_NONE);
1455 static const char *set_enable_mmap(cmd_parms *cmd, void *d_,
1458 core_dir_config *d = d_;
1459 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1465 if (strcasecmp(arg, "on") == 0) {
1466 d->enable_mmap = ENABLE_MMAP_ON;
1468 else if (strcasecmp(arg, "off") == 0) {
1469 d->enable_mmap = ENABLE_MMAP_OFF;
1472 return "parameter must be 'on' or 'off'";
1478 static const char *set_enable_sendfile(cmd_parms *cmd, void *d_,
1481 core_dir_config *d = d_;
1482 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1488 if (strcasecmp(arg, "on") == 0) {
1489 d->enable_sendfile = ENABLE_SENDFILE_ON;
1491 else if (strcasecmp(arg, "off") == 0) {
1492 d->enable_sendfile = ENABLE_SENDFILE_OFF;
1495 return "parameter must be 'on' or 'off'";
1501 static const char *satisfy(cmd_parms *cmd, void *c_, const char *arg)
1503 core_dir_config *c = c_;
1504 int satisfy = SATISFY_NOSPEC;
1507 if (!strcasecmp(arg, "all")) {
1508 satisfy = SATISFY_ALL;
1510 else if (!strcasecmp(arg, "any")) {
1511 satisfy = SATISFY_ANY;
1514 return "Satisfy either 'any' or 'all'.";
1517 for (i = 0; i < METHODS; ++i) {
1518 if (cmd->limited & (AP_METHOD_BIT << i)) {
1519 c->satisfy[i] = satisfy;
1526 static const char *require(cmd_parms *cmd, void *c_, const char *arg)
1529 core_dir_config *c = c_;
1531 if (!c->ap_requires) {
1532 c->ap_requires = apr_array_make(cmd->pool, 2, sizeof(require_line));
1535 r = (require_line *)apr_array_push(c->ap_requires);
1536 r->requirement = apr_pstrdup(cmd->pool, arg);
1537 r->method_mask = cmd->limited;
1543 * Report a missing-'>' syntax error.
1545 static char *unclosed_directive(cmd_parms *cmd)
1547 return apr_pstrcat(cmd->pool, cmd->cmd->name,
1548 "> directive missing closing '>'", NULL);
1551 AP_CORE_DECLARE_NONSTD(const char *) ap_limit_section(cmd_parms *cmd,
1555 const char *endp = ap_strrchr_c(arg, '>');
1556 const char *limited_methods;
1557 void *tog = cmd->cmd->cmd_data;
1558 apr_int64_t limited = 0;
1561 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1567 return unclosed_directive(cmd);
1570 limited_methods = apr_pstrndup(cmd->pool, arg, endp - arg);
1572 while (limited_methods[0]) {
1573 char *method = ap_getword_conf(cmd->pool, &limited_methods);
1576 /* check for builtin or module registered method number */
1577 methnum = ap_method_number_of(method);
1579 if (methnum == M_TRACE && !tog) {
1580 return "TRACE cannot be controlled by <Limit>";
1582 else if (methnum == M_INVALID) {
1583 /* method has not been registered yet, but resorce restriction
1584 * is always checked before method handling, so register it.
1586 methnum = ap_method_register(cmd->pool, method);
1589 limited |= (AP_METHOD_BIT << methnum);
1592 /* Killing two features with one function,
1593 * if (tog == NULL) <Limit>, else <LimitExcept>
1595 cmd->limited = tog ? ~limited : limited;
1597 errmsg = ap_walk_config(cmd->directive->first_child, cmd, cmd->context);
1604 /* XXX: Bogus - need to do this differently (at least OS2/Netware suffer
1605 * the same problem!!!
1606 * We use this in <DirectoryMatch> and <FilesMatch>, to ensure that
1607 * people don't get bitten by wrong-cased regex matches
1611 #define USE_ICASE REG_ICASE
1616 static const char *dirsection(cmd_parms *cmd, void *mconfig, const char *arg)
1619 const char *endp = ap_strrchr_c(arg, '>');
1620 int old_overrides = cmd->override;
1621 char *old_path = cmd->path;
1622 core_dir_config *conf;
1623 ap_conf_vector_t *new_dir_conf = ap_create_per_dir_config(cmd->pool);
1625 const command_rec *thiscmd = cmd->cmd;
1627 const char *err = ap_check_cmd_context(cmd,
1628 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1634 return unclosed_directive(cmd);
1637 arg = apr_pstrndup(cmd->pool, arg, endp - arg);
1640 if (thiscmd->cmd_data)
1641 return "<DirectoryMatch > block must specify a path";
1643 return "<Directory > block must specify a path";
1646 cmd->path = ap_getword_conf(cmd->pool, &arg);
1647 cmd->override = OR_ALL|ACCESS_CONF;
1649 if (!strcmp(cmd->path, "~")) {
1650 cmd->path = ap_getword_conf(cmd->pool, &arg);
1652 return "<Directory ~ > block must specify a path";
1653 r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE);
1655 else if (thiscmd->cmd_data) { /* <DirectoryMatch> */
1656 r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE);
1658 else if (!strcmp(cmd->path, "/") == 0)
1663 * Ensure that the pathname is canonical, and append the trailing /
1665 apr_status_t rv = apr_filepath_merge(&newpath, NULL, cmd->path,
1666 APR_FILEPATH_TRUENAME, cmd->pool);
1667 if (rv != APR_SUCCESS && rv != APR_EPATHWILD) {
1668 return apr_pstrcat(cmd->pool, "<Directory \"", cmd->path,
1669 "\"> path is invalid.", NULL);
1672 cmd->path = newpath;
1673 if (cmd->path[strlen(cmd->path) - 1] != '/')
1674 cmd->path = apr_pstrcat(cmd->pool, cmd->path, "/", NULL);
1677 /* initialize our config and fetch it */
1678 conf = ap_set_config_vectors(cmd->server, new_dir_conf, cmd->path,
1679 &core_module, cmd->pool);
1681 errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_dir_conf);
1686 conf->d = cmd->path;
1687 conf->d_is_fnmatch = (apr_fnmatch_test(conf->d) != 0);
1689 /* Make this explicit - the "/" root has 0 elements, that is, we
1690 * will always merge it, and it will always sort and merge first.
1691 * All others are sorted and tested by the number of slashes.
1693 if (strcmp(conf->d, "/") == 0)
1694 conf->d_components = 0;
1696 conf->d_components = ap_count_dirs(conf->d);
1698 ap_add_per_dir_conf(cmd->server, new_dir_conf);
1701 return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
1702 "> arguments not (yet) supported.", NULL);
1705 cmd->path = old_path;
1706 cmd->override = old_overrides;
1711 static const char *urlsection(cmd_parms *cmd, void *mconfig, const char *arg)
1714 const char *endp = ap_strrchr_c(arg, '>');
1715 int old_overrides = cmd->override;
1716 char *old_path = cmd->path;
1717 core_dir_config *conf;
1719 const command_rec *thiscmd = cmd->cmd;
1720 ap_conf_vector_t *new_url_conf = ap_create_per_dir_config(cmd->pool);
1721 const char *err = ap_check_cmd_context(cmd,
1722 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1728 return unclosed_directive(cmd);
1731 arg = apr_pstrndup(cmd->pool, arg, endp - arg);
1733 cmd->path = ap_getword_conf(cmd->pool, &arg);
1734 cmd->override = OR_ALL|ACCESS_CONF;
1736 if (thiscmd->cmd_data) { /* <LocationMatch> */
1737 r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED);
1739 else if (!strcmp(cmd->path, "~")) {
1740 cmd->path = ap_getword_conf(cmd->pool, &arg);
1741 r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED);
1744 /* initialize our config and fetch it */
1745 conf = ap_set_config_vectors(cmd->server, new_url_conf, cmd->path,
1746 &core_module, cmd->pool);
1748 errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_url_conf);
1752 conf->d = apr_pstrdup(cmd->pool, cmd->path); /* No mangling, please */
1753 conf->d_is_fnmatch = apr_fnmatch_test(conf->d) != 0;
1756 ap_add_per_url_conf(cmd->server, new_url_conf);
1759 return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
1760 "> arguments not (yet) supported.", NULL);
1763 cmd->path = old_path;
1764 cmd->override = old_overrides;
1769 static const char *filesection(cmd_parms *cmd, void *mconfig, const char *arg)
1772 const char *endp = ap_strrchr_c(arg, '>');
1773 int old_overrides = cmd->override;
1774 char *old_path = cmd->path;
1775 core_dir_config *conf;
1777 const command_rec *thiscmd = cmd->cmd;
1778 core_dir_config *c = mconfig;
1779 ap_conf_vector_t *new_file_conf = ap_create_per_dir_config(cmd->pool);
1780 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT|NOT_IN_LOCATION);
1787 return unclosed_directive(cmd);
1790 arg = apr_pstrndup(cmd->pool, arg, endp - arg);
1792 cmd->path = ap_getword_conf(cmd->pool, &arg);
1793 /* Only if not an .htaccess file */
1795 cmd->override = OR_ALL|ACCESS_CONF;
1798 if (thiscmd->cmd_data) { /* <FilesMatch> */
1799 r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE);
1801 else if (!strcmp(cmd->path, "~")) {
1802 cmd->path = ap_getword_conf(cmd->pool, &arg);
1803 r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE);
1807 /* Ensure that the pathname is canonical, but we
1808 * can't test the case/aliases without a fixed path */
1809 if (apr_filepath_merge(&newpath, "", cmd->path,
1810 0, cmd->pool) != APR_SUCCESS)
1811 return apr_pstrcat(cmd->pool, "<Files \"", cmd->path,
1812 "\"> is invalid.", NULL);
1813 cmd->path = newpath;
1816 /* initialize our config and fetch it */
1817 conf = ap_set_config_vectors(cmd->server, new_file_conf, cmd->path,
1818 &core_module, cmd->pool);
1820 errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_file_conf);
1824 conf->d = cmd->path;
1825 conf->d_is_fnmatch = apr_fnmatch_test(conf->d) != 0;
1828 ap_add_file_conf(c, new_file_conf);
1831 return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
1832 "> arguments not (yet) supported.", NULL);
1835 cmd->path = old_path;
1836 cmd->override = old_overrides;
1841 static const char *start_ifmod(cmd_parms *cmd, void *mconfig, const char *arg)
1843 const char *endp = ap_strrchr_c(arg, '>');
1844 int not = (arg[0] == '!');
1848 return unclosed_directive(cmd);
1851 arg = apr_pstrndup(cmd->pool, arg, endp - arg);
1857 found = ap_find_linked_module(arg);
1859 if ((!not && found) || (not && !found)) {
1860 ap_directive_t *parent = NULL;
1861 ap_directive_t *current = NULL;
1864 retval = ap_build_cont_config(cmd->pool, cmd->temp_pool, cmd,
1865 ¤t, &parent, "<IfModule");
1866 *(ap_directive_t **)mconfig = current;
1870 *(ap_directive_t **)mconfig = NULL;
1871 return ap_soak_end_container(cmd, "<IfModule");
1875 AP_DECLARE(int) ap_exists_config_define(const char *name)
1880 defines = (char **)ap_server_config_defines->elts;
1881 for (i = 0; i < ap_server_config_defines->nelts; i++) {
1882 if (strcmp(defines[i], name) == 0) {
1890 static const char *start_ifdefine(cmd_parms *cmd, void *dummy, const char *arg)
1896 endp = ap_strrchr_c(arg, '>');
1898 return unclosed_directive(cmd);
1901 arg = apr_pstrndup(cmd->pool, arg, endp - arg);
1903 if (arg[0] == '!') {
1908 defined = ap_exists_config_define(arg);
1909 if ((!not && defined) || (not && !defined)) {
1910 ap_directive_t *parent = NULL;
1911 ap_directive_t *current = NULL;
1914 retval = ap_build_cont_config(cmd->pool, cmd->temp_pool, cmd,
1915 ¤t, &parent, "<IfDefine");
1916 *(ap_directive_t **)dummy = current;
1920 *(ap_directive_t **)dummy = NULL;
1921 return ap_soak_end_container(cmd, "<IfDefine");
1925 /* httpd.conf commands... beginning with the <VirtualHost> business */
1927 static const char *virtualhost_section(cmd_parms *cmd, void *dummy,
1930 server_rec *main_server = cmd->server, *s;
1932 const char *endp = ap_strrchr_c(arg, '>');
1933 apr_pool_t *p = cmd->pool;
1935 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
1941 return unclosed_directive(cmd);
1944 arg = apr_pstrndup(cmd->pool, arg, endp - arg);
1946 /* FIXME: There's another feature waiting to happen here -- since you
1947 can now put multiple addresses/names on a single <VirtualHost>
1948 you might want to use it to group common definitions and then
1949 define other "subhosts" with their individual differences. But
1950 personally I'd rather just do it with a macro preprocessor. -djg */
1951 if (main_server->is_virtual) {
1952 return "<VirtualHost> doesn't nest!";
1955 errmsg = ap_init_virtual_host(p, arg, main_server, &s);
1960 s->next = main_server->next;
1961 main_server->next = s;
1963 s->defn_name = cmd->directive->filename;
1964 s->defn_line_number = cmd->directive->line_num;
1968 errmsg = ap_walk_config(cmd->directive->first_child, cmd,
1969 s->lookup_defaults);
1971 cmd->server = main_server;
1976 static const char *set_server_alias(cmd_parms *cmd, void *dummy,
1979 if (!cmd->server->names) {
1980 return "ServerAlias only used in <VirtualHost>";
1984 char **item, *name = ap_getword_conf(cmd->pool, &arg);
1986 if (ap_is_matchexp(name)) {
1987 item = (char **)apr_array_push(cmd->server->wild_names);
1990 item = (char **)apr_array_push(cmd->server->names);
1999 static const char *set_server_string_slot(cmd_parms *cmd, void *dummy,
2002 /* This one's pretty generic... */
2004 int offset = (int)(long)cmd->info;
2005 char *struct_ptr = (char *)cmd->server;
2007 const char *err = ap_check_cmd_context(cmd,
2008 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2013 *(const char **)(struct_ptr + offset) = arg;
2017 static const char *server_hostname_port(cmd_parms *cmd, void *dummy, const char *arg)
2019 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2020 const char *portstr;
2027 portstr = ap_strchr_c(arg, ':');
2029 cmd->server->server_hostname = apr_pstrndup(cmd->pool, arg,
2032 port = atoi(portstr);
2033 if (port <= 0 || port >= 65536) { /* 65536 == 1<<16 */
2034 return apr_pstrcat(cmd->temp_pool, "The port number \"", arg,
2035 "\" is outside the appropriate range "
2036 "(i.e., 1..65535).", NULL);
2040 cmd->server->server_hostname = apr_pstrdup(cmd->pool, arg);
2044 cmd->server->port = port;
2048 static const char *set_signature_flag(cmd_parms *cmd, void *d_,
2051 core_dir_config *d = d_;
2052 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2058 if (strcasecmp(arg, "On") == 0) {
2059 d->server_signature = srv_sig_on;
2061 else if (strcasecmp(arg, "Off") == 0) {
2062 d->server_signature = srv_sig_off;
2064 else if (strcasecmp(arg, "EMail") == 0) {
2065 d->server_signature = srv_sig_withmail;
2068 return "ServerSignature: use one of: off | on | email";
2074 static const char *set_server_root(cmd_parms *cmd, void *dummy,
2077 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2083 if ((apr_filepath_merge((char**)&ap_server_root, NULL, arg,
2084 APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS)
2085 || !ap_is_directory(cmd->pool, ap_server_root)) {
2086 return "ServerRoot must be a valid directory";
2092 static const char *set_timeout(cmd_parms *cmd, void *dummy, const char *arg)
2094 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2100 cmd->server->timeout = apr_time_from_sec(atoi(arg));
2104 static const char *set_allow2f(cmd_parms *cmd, void *d_, int arg)
2106 core_dir_config *d = d_;
2107 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2113 d->allow_encoded_slashes = arg != 0;
2117 static const char *set_hostname_lookups(cmd_parms *cmd, void *d_,
2120 core_dir_config *d = d_;
2121 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2127 if (!strcasecmp(arg, "on")) {
2128 d->hostname_lookups = HOSTNAME_LOOKUP_ON;
2130 else if (!strcasecmp(arg, "off")) {
2131 d->hostname_lookups = HOSTNAME_LOOKUP_OFF;
2133 else if (!strcasecmp(arg, "double")) {
2134 d->hostname_lookups = HOSTNAME_LOOKUP_DOUBLE;
2137 return "parameter must be 'on', 'off', or 'double'";
2143 static const char *set_serverpath(cmd_parms *cmd, void *dummy,
2146 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2152 cmd->server->path = arg;
2153 cmd->server->pathlen = strlen(arg);
2157 static const char *set_content_md5(cmd_parms *cmd, void *d_, int arg)
2159 core_dir_config *d = d_;
2160 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2166 d->content_md5 = arg != 0;
2170 static const char *set_accept_path_info(cmd_parms *cmd, void *d_, const char *arg)
2172 core_dir_config *d = d_;
2174 if (strcasecmp(arg, "on") == 0) {
2175 d->accept_path_info = AP_REQ_ACCEPT_PATH_INFO;
2177 else if (strcasecmp(arg, "off") == 0) {
2178 d->accept_path_info = AP_REQ_REJECT_PATH_INFO;
2180 else if (strcasecmp(arg, "default") == 0) {
2181 d->accept_path_info = AP_REQ_DEFAULT_PATH_INFO;
2184 return "AcceptPathInfo must be set to on, off or default";
2190 static const char *set_use_canonical_name(cmd_parms *cmd, void *d_,
2193 core_dir_config *d = d_;
2194 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2200 if (strcasecmp(arg, "on") == 0) {
2201 d->use_canonical_name = USE_CANONICAL_NAME_ON;
2203 else if (strcasecmp(arg, "off") == 0) {
2204 d->use_canonical_name = USE_CANONICAL_NAME_OFF;
2206 else if (strcasecmp(arg, "dns") == 0) {
2207 d->use_canonical_name = USE_CANONICAL_NAME_DNS;
2210 return "parameter must be 'on', 'off', or 'dns'";
2217 static const char *include_config (cmd_parms *cmd, void *dummy,
2220 ap_directive_t *conftree = NULL;
2221 const char* conffile = ap_server_root_relative(cmd->pool, name);
2224 return apr_pstrcat(cmd->pool, "Invalid Include path ",
2228 ap_process_resource_config(cmd->server, conffile,
2229 &conftree, cmd->pool, cmd->temp_pool);
2230 *(ap_directive_t **)dummy = conftree;
2234 static const char *set_loglevel(cmd_parms *cmd, void *dummy, const char *arg)
2238 const char *err = ap_check_cmd_context(cmd,
2239 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2244 if ((str = ap_getword_conf(cmd->pool, &arg))) {
2245 if (!strcasecmp(str, "emerg")) {
2246 cmd->server->loglevel = APLOG_EMERG;
2248 else if (!strcasecmp(str, "alert")) {
2249 cmd->server->loglevel = APLOG_ALERT;
2251 else if (!strcasecmp(str, "crit")) {
2252 cmd->server->loglevel = APLOG_CRIT;
2254 else if (!strcasecmp(str, "error")) {
2255 cmd->server->loglevel = APLOG_ERR;
2257 else if (!strcasecmp(str, "warn")) {
2258 cmd->server->loglevel = APLOG_WARNING;
2260 else if (!strcasecmp(str, "notice")) {
2261 cmd->server->loglevel = APLOG_NOTICE;
2263 else if (!strcasecmp(str, "info")) {
2264 cmd->server->loglevel = APLOG_INFO;
2266 else if (!strcasecmp(str, "debug")) {
2267 cmd->server->loglevel = APLOG_DEBUG;
2270 return "LogLevel requires level keyword: one of "
2271 "emerg/alert/crit/error/warn/notice/info/debug";
2275 return "LogLevel requires level keyword";
2281 AP_DECLARE(const char *) ap_psignature(const char *prefix, request_rec *r)
2284 core_dir_config *conf;
2286 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
2288 if ((conf->server_signature == srv_sig_off)
2289 || (conf->server_signature == srv_sig_unset)) {
2293 apr_snprintf(sport, sizeof sport, "%u", (unsigned) ap_get_server_port(r));
2295 if (conf->server_signature == srv_sig_withmail) {
2296 return apr_pstrcat(r->pool, prefix, "<address>",
2297 ap_get_server_version(),
2298 " Server at <a href=\"mailto:",
2299 r->server->server_admin, "\">",
2300 ap_escape_html(r->pool, ap_get_server_name(r)),
2301 "</a> Port ", sport,
2302 "</address>\n", NULL);
2305 return apr_pstrcat(r->pool, prefix, "<address>", ap_get_server_version(),
2307 ap_escape_html(r->pool, ap_get_server_name(r)),
2309 "</address>\n", NULL);
2313 * Load an authorisation realm into our location configuration, applying the
2314 * usual rules that apply to realms.
2316 static const char *set_authname(cmd_parms *cmd, void *mconfig,
2319 core_dir_config *aconfig = (core_dir_config *)mconfig;
2321 aconfig->ap_auth_name = ap_escape_quotes(cmd->pool, word1);
2326 * Handle a request to include the server's OS platform in the Server
2327 * response header field (the ServerTokens directive). Unfortunately
2328 * this requires a new global in order to communicate the setting back to
2329 * http_main so it can insert the information in the right place in the
2333 static char *server_version = NULL;
2334 static int version_locked = 0;
2336 enum server_token_type {
2337 SrvTk_MAJOR, /* eg: Apache/2 */
2338 SrvTk_MINOR, /* eg. Apache/2.0 */
2339 SrvTk_MINIMAL, /* eg: Apache/2.0.41 */
2340 SrvTk_OS, /* eg: Apache/2.0.41 (UNIX) */
2341 SrvTk_FULL, /* eg: Apache/2.0.41 (UNIX) PHP/4.2.2 FooBar/1.2b */
2342 SrvTk_PRODUCT_ONLY /* eg: Apache */
2344 static enum server_token_type ap_server_tokens = SrvTk_FULL;
2346 static apr_status_t reset_version(void *dummy)
2349 ap_server_tokens = SrvTk_FULL;
2350 server_version = NULL;
2354 AP_DECLARE(void) ap_get_server_revision(ap_version_t *version)
2356 version->major = AP_SERVER_MAJORVERSION_NUMBER;
2357 version->minor = AP_SERVER_MINORVERSION_NUMBER;
2358 version->patch = AP_SERVER_PATCHLEVEL_NUMBER;
2359 version->add_string = AP_SERVER_ADD_STRING;
2362 AP_DECLARE(const char *) ap_get_server_version(void)
2364 return (server_version ? server_version : AP_SERVER_BASEVERSION);
2367 AP_DECLARE(void) ap_add_version_component(apr_pool_t *pconf, const char *component)
2369 if (! version_locked) {
2371 * If the version string is null, register our cleanup to reset the
2372 * pointer on pool destruction. We also know that, if NULL,
2373 * we are adding the original SERVER_BASEVERSION string.
2375 if (server_version == NULL) {
2376 apr_pool_cleanup_register(pconf, NULL, reset_version,
2377 apr_pool_cleanup_null);
2378 server_version = apr_pstrdup(pconf, component);
2382 * Tack the given component identifier to the end of
2383 * the existing string.
2385 server_version = apr_pstrcat(pconf, server_version, " ",
2392 * This routine adds the real server base identity to the version string,
2393 * and then locks out changes until the next reconfig.
2395 static void ap_set_version(apr_pool_t *pconf)
2397 if (ap_server_tokens == SrvTk_PRODUCT_ONLY) {
2398 ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT);
2400 else if (ap_server_tokens == SrvTk_MINIMAL) {
2401 ap_add_version_component(pconf, AP_SERVER_BASEVERSION);
2403 else if (ap_server_tokens == SrvTk_MINOR) {
2404 ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT "/" AP_SERVER_MINORREVISION);
2406 else if (ap_server_tokens == SrvTk_MAJOR) {
2407 ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT "/" AP_SERVER_MAJORVERSION);
2410 ap_add_version_component(pconf, AP_SERVER_BASEVERSION " (" PLATFORM ")");
2414 * Lock the server_version string if we're not displaying
2415 * the full set of tokens
2417 if (ap_server_tokens != SrvTk_FULL) {
2422 static const char *set_serv_tokens(cmd_parms *cmd, void *dummy,
2425 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2431 if (!strcasecmp(arg, "OS")) {
2432 ap_server_tokens = SrvTk_OS;
2434 else if (!strcasecmp(arg, "Min") || !strcasecmp(arg, "Minimal")) {
2435 ap_server_tokens = SrvTk_MINIMAL;
2437 else if (!strcasecmp(arg, "Major")) {
2438 ap_server_tokens = SrvTk_MAJOR;
2440 else if (!strcasecmp(arg, "Minor") ) {
2441 ap_server_tokens = SrvTk_MINOR;
2443 else if (!strcasecmp(arg, "Prod") || !strcasecmp(arg, "ProductOnly")) {
2444 ap_server_tokens = SrvTk_PRODUCT_ONLY;
2447 ap_server_tokens = SrvTk_FULL;
2453 static const char *set_limit_req_line(cmd_parms *cmd, void *dummy,
2456 const char *err = ap_check_cmd_context(cmd,
2457 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2466 return apr_pstrcat(cmd->temp_pool, "LimitRequestLine \"", arg,
2467 "\" must be a non-negative integer", NULL);
2470 cmd->server->limit_req_line = lim;
2474 static const char *set_limit_req_fieldsize(cmd_parms *cmd, void *dummy,
2477 const char *err = ap_check_cmd_context(cmd,
2478 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2487 return apr_pstrcat(cmd->temp_pool, "LimitRequestFieldsize \"", arg,
2488 "\" must be a non-negative integer (0 = no limit)",
2492 if (lim > DEFAULT_LIMIT_REQUEST_FIELDSIZE) {
2493 return apr_psprintf(cmd->temp_pool, "LimitRequestFieldsize \"%s\" "
2494 "must not exceed the precompiled maximum of %d",
2495 arg, DEFAULT_LIMIT_REQUEST_FIELDSIZE);
2498 cmd->server->limit_req_fieldsize = lim;
2502 static const char *set_limit_req_fields(cmd_parms *cmd, void *dummy,
2505 const char *err = ap_check_cmd_context(cmd,
2506 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2515 return apr_pstrcat(cmd->temp_pool, "LimitRequestFields \"", arg,
2516 "\" must be a non-negative integer (0 = no limit)",
2520 cmd->server->limit_req_fields = lim;
2524 static const char *set_limit_req_body(cmd_parms *cmd, void *conf_,
2527 core_dir_config *conf = conf_;
2528 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2535 /* WTF: If strtoul is not portable, then write a replacement.
2536 * Instead we have an idiotic define in httpd.h that prevents
2537 * it from being used even when it is available. Sheesh.
2539 conf->limit_req_body = (apr_off_t)strtol(arg, &errp, 10);
2540 if (*errp != '\0') {
2541 return "LimitRequestBody requires a non-negative integer.";
2547 static const char *set_limit_xml_req_body(cmd_parms *cmd, void *conf_,
2550 core_dir_config *conf = conf_;
2551 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2557 conf->limit_xml_body = atol(arg);
2558 if (conf->limit_xml_body < 0)
2559 return "LimitXMLRequestBody requires a non-negative integer.";
2564 AP_DECLARE(size_t) ap_get_limit_xml_body(const request_rec *r)
2566 core_dir_config *conf;
2568 conf = ap_get_module_config(r->per_dir_config, &core_module);
2569 if (conf->limit_xml_body == AP_LIMIT_UNSET)
2570 return AP_DEFAULT_LIMIT_XML_BODY;
2572 return (size_t)conf->limit_xml_body;
2575 #if !defined (RLIMIT_CPU) || !(defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS)) || !defined (RLIMIT_NPROC)
2576 static const char *no_set_limit(cmd_parms *cmd, void *conf_,
2577 const char *arg, const char *arg2)
2579 ap_log_error(APLOG_MARK, APLOG_ERR, 0, cmd->server,
2580 "%s not supported on this platform", cmd->cmd->name);
2587 static const char *set_limit_cpu(cmd_parms *cmd, void *conf_,
2588 const char *arg, const char *arg2)
2590 core_dir_config *conf = conf_;
2592 unixd_set_rlimit(cmd, &conf->limit_cpu, arg, arg2, RLIMIT_CPU);
2597 #if defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS)
2598 static const char *set_limit_mem(cmd_parms *cmd, void *conf_,
2599 const char *arg, const char * arg2)
2601 core_dir_config *conf = conf_;
2603 #if defined(RLIMIT_AS)
2604 unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2 ,RLIMIT_AS);
2605 #elif defined(RLIMIT_DATA)
2606 unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2, RLIMIT_DATA);
2607 #elif defined(RLIMIT_VMEM)
2608 unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2, RLIMIT_VMEM);
2616 static const char *set_limit_nproc(cmd_parms *cmd, void *conf_,
2617 const char *arg, const char * arg2)
2619 core_dir_config *conf = conf_;
2621 unixd_set_rlimit(cmd, &conf->limit_nproc, arg, arg2, RLIMIT_NPROC);
2626 static const char *set_recursion_limit(cmd_parms *cmd, void *dummy,
2627 const char *arg1, const char *arg2)
2629 core_server_config *conf = ap_get_module_config(cmd->server->module_config,
2631 int limit = atoi(arg1);
2634 return "The recursion limit must be greater than zero.";
2637 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server,
2638 "Limiting internal redirects to very low numbers may "
2639 "cause normal requests to fail.");
2642 conf->redirect_limit = limit;
2648 return "The recursion limit must be greater than zero.";
2651 ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server,
2652 "Limiting the subrequest depth to a very low level may"
2653 " cause normal requests to fail.");
2657 conf->subreq_limit = limit;
2662 static void log_backtrace(const request_rec *r)
2664 const request_rec *top = r;
2666 ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
2667 "r->uri = %s", r->uri ? r->uri : "(unexpectedly NULL)");
2669 while (top && (top->prev || top->main)) {
2672 ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
2673 "redirected from r->uri = %s",
2674 top->uri ? top->uri : "(unexpectedly NULL)");
2677 if (!top->prev && top->main) {
2679 ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
2680 "subrequested from r->uri = %s",
2681 top->uri ? top->uri : "(unexpectedly NULL)");
2687 * check whether redirect limit is reached
2689 AP_DECLARE(int) ap_is_recursion_limit_exceeded(const request_rec *r)
2691 core_server_config *conf = ap_get_module_config(r->server->module_config,
2693 const request_rec *top = r;
2694 int redirects = 0, subreqs = 0;
2695 int rlimit = conf->redirect_limit
2696 ? conf->redirect_limit
2697 : AP_DEFAULT_MAX_INTERNAL_REDIRECTS;
2698 int slimit = conf->subreq_limit
2699 ? conf->subreq_limit
2700 : AP_DEFAULT_MAX_SUBREQ_DEPTH;
2703 while (top->prev || top->main) {
2705 if (++redirects >= rlimit) {
2706 /* uuh, too much. */
2707 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
2708 "Request exceeded the limit of %d internal "
2709 "redirects due to probable configuration error. "
2710 "Use 'LimitInternalRecursion' to increase the "
2711 "limit if necessary. Use 'LogLevel debug' to get "
2712 "a backtrace.", rlimit);
2714 /* post backtrace */
2717 /* return failure */
2724 if (!top->prev && top->main) {
2725 if (++subreqs >= slimit) {
2726 /* uuh, too much. */
2727 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
2728 "Request exceeded the limit of %d subrequest "
2729 "nesting levels due to probable confguration "
2730 "error. Use 'LimitInternalRecursion' to increase "
2731 "the limit if necessary. Use 'LogLevel debug' to "
2732 "get a backtrace.", slimit);
2734 /* post backtrace */
2737 /* return failure */
2745 /* recursion state: ok */
2749 static const char *add_ct_output_filters(cmd_parms *cmd, void *conf_,
2750 const char *arg, const char *arg2)
2752 core_dir_config *conf = conf_;
2753 ap_filter_rec_t *old, *new = NULL;
2754 const char *filter_name;
2756 if (!conf->ct_output_filters) {
2757 conf->ct_output_filters = apr_hash_make(cmd->pool);
2761 old = (ap_filter_rec_t*) apr_hash_get(conf->ct_output_filters, arg2,
2762 APR_HASH_KEY_STRING);
2763 /* find last entry */
2772 (filter_name = ap_getword(cmd->pool, &arg, ';')) &&
2773 strcmp(filter_name, "")) {
2774 new = apr_pcalloc(cmd->pool, sizeof(ap_filter_rec_t));
2775 new->name = filter_name;
2777 /* We found something, so let's append it. */
2782 apr_hash_set(conf->ct_output_filters, arg2,
2783 APR_HASH_KEY_STRING, new);
2789 return "invalid filter name";
2795 * Insert filters requested by the AddOutputFilterByType
2796 * configuration directive. We cannot add filters based
2797 * on content-type until after the handler has started
2798 * to run. Only then do we reliably know the content-type.
2800 void ap_add_output_filters_by_type(request_rec *r)
2802 core_dir_config *conf;
2805 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
2808 /* We can't do anything with proxy requests, no content-types or if
2809 * we don't have a filter configured.
2811 if (r->proxyreq != PROXYREQ_NONE || !r->content_type ||
2812 !conf->ct_output_filters) {
2816 /* remove c-t decoration */
2817 ctype = ap_field_noparam(r->pool, r->content_type);
2819 ap_filter_rec_t *ct_filter;
2820 ct_filter = apr_hash_get(conf->ct_output_filters, ctype,
2821 APR_HASH_KEY_STRING);
2823 ap_add_output_filter(ct_filter->name, NULL, r, r->connection);
2824 ct_filter = ct_filter->next;
2831 static apr_status_t writev_it_all(apr_socket_t *s,
2832 struct iovec *vec, int nvec,
2833 apr_size_t len, apr_size_t *nbytes)
2835 apr_size_t bytes_written = 0;
2842 /* XXX handle checking for non-blocking socket */
2843 while (bytes_written != len) {
2844 rv = apr_socket_sendv(s, vec + i, nvec - i, &n);
2847 if (rv != APR_SUCCESS)
2850 /* If the write did not complete, adjust the iovecs and issue
2851 * apr_socket_sendv again
2853 if (bytes_written < len) {
2854 /* Skip over the vectors that have already been written */
2855 apr_size_t cnt = vec[i].iov_len;
2856 while (n >= cnt && i + 1 < nvec) {
2858 cnt += vec[i].iov_len;
2862 /* Handle partial write of vec i */
2863 vec[i].iov_base = (char *) vec[i].iov_base +
2864 (vec[i].iov_len - (cnt - n));
2865 vec[i].iov_len = cnt -n;
2869 n = len - bytes_written;
2875 /* sendfile_it_all()
2876 * send the entire file using sendfile()
2877 * handle partial writes
2878 * return only when all bytes have been sent or an error is encountered.
2881 #if APR_HAS_SENDFILE
2882 static apr_status_t sendfile_it_all(core_net_rec *c,
2885 apr_off_t file_offset,
2886 apr_size_t file_bytes_left,
2887 apr_size_t total_bytes_left,
2888 apr_size_t *bytes_sent,
2893 apr_interval_time_t timeout = 0;
2896 AP_DEBUG_ASSERT((apr_socket_timeout_get(c->client_socket, &timeout)
2898 && timeout > 0); /* socket must be in timeout mode */
2900 /* Reset the bytes_sent field */
2904 apr_size_t tmplen = file_bytes_left;
2906 rv = apr_socket_sendfile(c->client_socket, fd, hdtr, &file_offset, &tmplen,
2908 *bytes_sent += tmplen;
2909 total_bytes_left -= tmplen;
2910 if (!total_bytes_left || rv != APR_SUCCESS) {
2911 return rv; /* normal case & error exit */
2914 AP_DEBUG_ASSERT(total_bytes_left > 0 && tmplen > 0);
2916 /* partial write, oooh noooo...
2917 * Skip over any header data which was written
2919 while (tmplen && hdtr->numheaders) {
2920 if (tmplen >= hdtr->headers[0].iov_len) {
2921 tmplen -= hdtr->headers[0].iov_len;
2926 char *iov_base = (char *)hdtr->headers[0].iov_base;
2928 hdtr->headers[0].iov_len -= tmplen;
2930 hdtr->headers[0].iov_base = iov_base;
2935 /* Skip over any file data which was written */
2937 if (tmplen <= file_bytes_left) {
2938 file_offset += tmplen;
2939 file_bytes_left -= tmplen;
2943 tmplen -= file_bytes_left;
2944 file_bytes_left = 0;
2947 /* Skip over any trailer data which was written */
2949 while (tmplen && hdtr->numtrailers) {
2950 if (tmplen >= hdtr->trailers[0].iov_len) {
2951 tmplen -= hdtr->trailers[0].iov_len;
2952 --hdtr->numtrailers;
2956 char *iov_base = (char *)hdtr->trailers[0].iov_base;
2958 hdtr->trailers[0].iov_len -= tmplen;
2960 hdtr->trailers[0].iov_base = iov_base;
2969 * emulate_sendfile()
2970 * Sends the contents of file fd along with header/trailer bytes, if any,
2971 * to the network. emulate_sendfile will return only when all the bytes have been
2972 * sent (i.e., it handles partial writes) or on a network error condition.
2974 static apr_status_t emulate_sendfile(core_net_rec *c, apr_file_t *fd,
2975 apr_hdtr_t *hdtr, apr_off_t offset,
2976 apr_size_t length, apr_size_t *nbytes)
2978 apr_status_t rv = APR_SUCCESS;
2979 apr_int32_t togo; /* Remaining number of bytes in the file to send */
2980 apr_size_t sendlen = 0;
2981 apr_size_t bytes_sent;
2983 apr_off_t o; /* Track the file offset for partial writes */
2989 * writev_it_all handles partial writes.
2990 * XXX: optimization... if headers are less than MIN_WRITE_SIZE, copy
2993 if (hdtr && hdtr->numheaders > 0 ) {
2994 for (i = 0; i < hdtr->numheaders; i++) {
2995 sendlen += hdtr->headers[i].iov_len;
2998 rv = writev_it_all(c->client_socket, hdtr->headers, hdtr->numheaders,
2999 sendlen, &bytes_sent);
3000 *nbytes += bytes_sent; /* track total bytes sent */
3003 /* Seek the file to 'offset' */
3004 if (offset >= 0 && rv == APR_SUCCESS) {
3005 rv = apr_file_seek(fd, APR_SET, &offset);
3008 /* Send the file, making sure to handle partial writes */
3010 while (rv == APR_SUCCESS && togo) {
3011 sendlen = togo > sizeof(buffer) ? sizeof(buffer) : togo;
3013 rv = apr_file_read(fd, buffer, &sendlen);
3014 while (rv == APR_SUCCESS && sendlen) {
3015 bytes_sent = sendlen;
3016 rv = apr_socket_send(c->client_socket, &buffer[o], &bytes_sent);
3017 *nbytes += bytes_sent;
3018 if (rv == APR_SUCCESS) {
3019 sendlen -= bytes_sent; /* sendlen != bytes_sent ==> partial write */
3020 o += bytes_sent; /* o is where we are in the buffer */
3021 togo -= bytes_sent; /* track how much of the file we've sent */
3026 /* Send the trailers
3027 * XXX: optimization... if it will fit, send this on the last send in the
3031 if ( rv == APR_SUCCESS && hdtr && hdtr->numtrailers > 0 ) {
3032 for (i = 0; i < hdtr->numtrailers; i++) {
3033 sendlen += hdtr->trailers[i].iov_len;
3035 rv = writev_it_all(c->client_socket, hdtr->trailers, hdtr->numtrailers,
3036 sendlen, &bytes_sent);
3037 *nbytes += bytes_sent;
3043 /* Note --- ErrorDocument will now work from .htaccess files.
3044 * The AllowOverride of Fileinfo allows webmasters to turn it off
3047 static const command_rec core_cmds[] = {
3049 /* Old access config file commands */
3051 AP_INIT_RAW_ARGS("<Directory", dirsection, NULL, RSRC_CONF,
3052 "Container for directives affecting resources located in the specified "
3054 AP_INIT_RAW_ARGS("<Location", urlsection, NULL, RSRC_CONF,
3055 "Container for directives affecting resources accessed through the "
3056 "specified URL paths"),
3057 AP_INIT_RAW_ARGS("<VirtualHost", virtualhost_section, NULL, RSRC_CONF,
3058 "Container to map directives to a particular virtual host, takes one or "
3059 "more host addresses"),
3060 AP_INIT_RAW_ARGS("<Files", filesection, NULL, OR_ALL,
3061 "Container for directives affecting files matching specified patterns"),
3062 AP_INIT_RAW_ARGS("<Limit", ap_limit_section, NULL, OR_ALL,
3063 "Container for authentication directives when accessed using specified HTTP "
3065 AP_INIT_RAW_ARGS("<LimitExcept", ap_limit_section, (void*)1, OR_ALL,
3066 "Container for authentication directives to be applied when any HTTP "
3067 "method other than those specified is used to access the resource"),
3068 AP_INIT_TAKE1("<IfModule", start_ifmod, NULL, EXEC_ON_READ | OR_ALL,
3069 "Container for directives based on existance of specified modules"),
3070 AP_INIT_TAKE1("<IfDefine", start_ifdefine, NULL, EXEC_ON_READ | OR_ALL,
3071 "Container for directives based on existance of command line defines"),
3072 AP_INIT_RAW_ARGS("<DirectoryMatch", dirsection, (void*)1, RSRC_CONF,
3073 "Container for directives affecting resources located in the "
3074 "specified directories"),
3075 AP_INIT_RAW_ARGS("<LocationMatch", urlsection, (void*)1, RSRC_CONF,
3076 "Container for directives affecting resources accessed through the "
3077 "specified URL paths"),
3078 AP_INIT_RAW_ARGS("<FilesMatch", filesection, (void*)1, OR_ALL,
3079 "Container for directives affecting files matching specified patterns"),
3080 AP_INIT_TAKE1("AuthType", ap_set_string_slot,
3081 (void*)APR_OFFSETOF(core_dir_config, ap_auth_type), OR_AUTHCFG,
3082 "An HTTP authorization type (e.g., \"Basic\")"),
3083 AP_INIT_TAKE1("AuthName", set_authname, NULL, OR_AUTHCFG,
3084 "The authentication realm (e.g. \"Members Only\")"),
3085 AP_INIT_RAW_ARGS("Require", require, NULL, OR_AUTHCFG,
3086 "Selects which authenticated users or groups may access a protected space"),
3087 AP_INIT_TAKE1("Satisfy", satisfy, NULL, OR_AUTHCFG,
3088 "access policy if both allow and require used ('all' or 'any')"),
3090 AP_INIT_TAKE1("GprofDir", set_gprof_dir, NULL, RSRC_CONF,
3091 "Directory to plop gmon.out files"),
3093 AP_INIT_TAKE1("AddDefaultCharset", set_add_default_charset, NULL, OR_FILEINFO,
3094 "The name of the default charset to add to any Content-Type without one or 'Off' to disable"),
3095 AP_INIT_TAKE1("AcceptPathInfo", set_accept_path_info, NULL, OR_FILEINFO,
3096 "Set to on or off for PATH_INFO to be accepted by handlers, or default for the per-handler preference"),
3098 /* Old resource config file commands */
3100 AP_INIT_RAW_ARGS("AccessFileName", set_access_name, NULL, RSRC_CONF,
3101 "Name(s) of per-directory config files (default: .htaccess)"),
3102 AP_INIT_TAKE1("DocumentRoot", set_document_root, NULL, RSRC_CONF,
3103 "Root directory of the document tree"),
3104 AP_INIT_TAKE2("ErrorDocument", set_error_document, NULL, OR_FILEINFO,
3105 "Change responses for HTTP errors"),
3106 AP_INIT_RAW_ARGS("AllowOverride", set_override, NULL, ACCESS_CONF,
3107 "Controls what groups of directives can be configured by per-directory "
3109 AP_INIT_RAW_ARGS("Options", set_options, NULL, OR_OPTIONS,
3110 "Set a number of attributes for a given directory"),
3111 AP_INIT_TAKE1("DefaultType", ap_set_string_slot,
3112 (void*)APR_OFFSETOF(core_dir_config, ap_default_type),
3113 OR_FILEINFO, "the default MIME type for untypable files"),
3114 AP_INIT_RAW_ARGS("FileETag", set_etag_bits, NULL, OR_FILEINFO,
3115 "Specify components used to construct a file's ETag"),
3116 AP_INIT_TAKE1("EnableMMAP", set_enable_mmap, NULL, OR_FILEINFO,
3117 "Controls whether memory-mapping may be used to read files"),
3118 AP_INIT_TAKE1("EnableSendfile", set_enable_sendfile, NULL, OR_FILEINFO,
3119 "Controls whether sendfile may be used to transmit files"),
3121 /* Old server config file commands */
3123 AP_INIT_TAKE1("Port", ap_set_deprecated, NULL, RSRC_CONF,
3124 "Port was replaced with Listen in Apache 2.0"),
3125 AP_INIT_TAKE1("HostnameLookups", set_hostname_lookups, NULL,
3126 ACCESS_CONF|RSRC_CONF,
3127 "\"on\" to enable, \"off\" to disable reverse DNS lookups, or \"double\" to "
3128 "enable double-reverse DNS lookups"),
3129 AP_INIT_TAKE1("ServerAdmin", set_server_string_slot,
3130 (void *)APR_OFFSETOF(server_rec, server_admin), RSRC_CONF,
3131 "The email address of the server administrator"),
3132 AP_INIT_TAKE1("ServerName", server_hostname_port, NULL, RSRC_CONF,
3133 "The hostname and port of the server"),
3134 AP_INIT_TAKE1("ServerSignature", set_signature_flag, NULL, OR_ALL,
3135 "En-/disable server signature (on|off|email)"),
3136 AP_INIT_TAKE1("ServerRoot", set_server_root, NULL, RSRC_CONF | EXEC_ON_READ,
3137 "Common directory of server-related files (logs, confs, etc.)"),
3138 AP_INIT_TAKE1("ErrorLog", set_server_string_slot,
3139 (void *)APR_OFFSETOF(server_rec, error_fname), RSRC_CONF,
3140 "The filename of the error log"),
3141 AP_INIT_RAW_ARGS("ServerAlias", set_server_alias, NULL, RSRC_CONF,
3142 "A name or names alternately used to access the server"),
3143 AP_INIT_TAKE1("ServerPath", set_serverpath, NULL, RSRC_CONF,
3144 "The pathname the server can be reached at"),
3145 AP_INIT_TAKE1("Timeout", set_timeout, NULL, RSRC_CONF,
3146 "Timeout duration (sec)"),
3147 AP_INIT_FLAG("ContentDigest", set_content_md5, NULL, OR_OPTIONS,
3148 "whether or not to send a Content-MD5 header with each request"),
3149 AP_INIT_TAKE1("UseCanonicalName", set_use_canonical_name, NULL,
3150 RSRC_CONF|ACCESS_CONF,
3151 "How to work out the ServerName : Port when constructing URLs"),
3152 /* TODO: RlimitFoo should all be part of mod_cgi, not in the core */
3153 /* TODO: ListenBacklog in MPM */
3154 AP_INIT_TAKE1("Include", include_config, NULL,
3155 (RSRC_CONF | ACCESS_CONF | EXEC_ON_READ),
3156 "Name of the config file to be included"),
3157 AP_INIT_TAKE1("LogLevel", set_loglevel, NULL, RSRC_CONF,
3158 "Level of verbosity in error logging"),
3159 AP_INIT_TAKE1("NameVirtualHost", ap_set_name_virtual_host, NULL, RSRC_CONF,
3160 "A numeric IP address:port, or the name of a host"),
3161 AP_INIT_TAKE1("ServerTokens", set_serv_tokens, NULL, RSRC_CONF,
3162 "Determine tokens displayed in the Server: header - Min(imal), OS or Full"),
3163 AP_INIT_TAKE1("LimitRequestLine", set_limit_req_line, NULL, RSRC_CONF,
3164 "Limit on maximum size of an HTTP request line"),
3165 AP_INIT_TAKE1("LimitRequestFieldsize", set_limit_req_fieldsize, NULL,
3167 "Limit on maximum size of an HTTP request header field"),
3168 AP_INIT_TAKE1("LimitRequestFields", set_limit_req_fields, NULL, RSRC_CONF,
3169 "Limit (0 = unlimited) on max number of header fields in a request message"),
3170 AP_INIT_TAKE1("LimitRequestBody", set_limit_req_body,
3171 (void*)APR_OFFSETOF(core_dir_config, limit_req_body), OR_ALL,
3172 "Limit (in bytes) on maximum size of request message body"),
3173 AP_INIT_TAKE1("LimitXMLRequestBody", set_limit_xml_req_body, NULL, OR_ALL,
3174 "Limit (in bytes) on maximum size of an XML-based request "
3177 /* System Resource Controls */
3179 AP_INIT_TAKE12("RLimitCPU", set_limit_cpu,
3180 (void*)APR_OFFSETOF(core_dir_config, limit_cpu),
3181 OR_ALL, "Soft/hard limits for max CPU usage in seconds"),
3183 AP_INIT_TAKE12("RLimitCPU", no_set_limit, NULL,
3184 OR_ALL, "Soft/hard limits for max CPU usage in seconds"),
3186 #if defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined (RLIMIT_AS)
3187 AP_INIT_TAKE12("RLimitMEM", set_limit_mem,
3188 (void*)APR_OFFSETOF(core_dir_config, limit_mem),
3189 OR_ALL, "Soft/hard limits for max memory usage per process"),
3191 AP_INIT_TAKE12("RLimitMEM", no_set_limit, NULL,
3192 OR_ALL, "Soft/hard limits for max memory usage per process"),
3195 AP_INIT_TAKE12("RLimitNPROC", set_limit_nproc,
3196 (void*)APR_OFFSETOF(core_dir_config, limit_nproc),
3197 OR_ALL, "soft/hard limits for max number of processes per uid"),
3199 AP_INIT_TAKE12("RLimitNPROC", no_set_limit, NULL,
3200 OR_ALL, "soft/hard limits for max number of processes per uid"),
3203 /* internal recursion stopper */
3204 AP_INIT_TAKE12("LimitInternalRecursion", set_recursion_limit, NULL, RSRC_CONF,
3205 "maximum recursion depth of internal redirects and subrequests"),
3207 AP_INIT_TAKE1("ForceType", ap_set_string_slot_lower,
3208 (void *)APR_OFFSETOF(core_dir_config, mime_type), OR_FILEINFO,
3209 "a mime type that overrides other configured type"),
3210 AP_INIT_TAKE1("SetHandler", ap_set_string_slot_lower,
3211 (void *)APR_OFFSETOF(core_dir_config, handler), OR_FILEINFO,
3212 "a handler name that overrides any other configured handler"),
3213 AP_INIT_TAKE1("SetOutputFilter", ap_set_string_slot,
3214 (void *)APR_OFFSETOF(core_dir_config, output_filters), OR_FILEINFO,
3215 "filter (or ; delimited list of filters) to be run on the request content"),
3216 AP_INIT_TAKE1("SetInputFilter", ap_set_string_slot,
3217 (void *)APR_OFFSETOF(core_dir_config, input_filters), OR_FILEINFO,
3218 "filter (or ; delimited list of filters) to be run on the request body"),
3219 AP_INIT_ITERATE2("AddOutputFilterByType", add_ct_output_filters,
3220 (void *)APR_OFFSETOF(core_dir_config, ct_output_filters), OR_FILEINFO,
3221 "output filter name followed by one or more content-types"),
3222 AP_INIT_FLAG("AllowEncodedSlashes", set_allow2f, NULL, RSRC_CONF,
3223 "Allow URLs containing '/' encoded as '%2F'"),
3226 * These are default configuration directives that mpms can/should
3227 * pay attention to. If an mpm wishes to use these, they should
3228 * #defined them in mpm.h.
3230 #ifdef AP_MPM_WANT_SET_PIDFILE
3231 AP_INIT_TAKE1("PidFile", ap_mpm_set_pidfile, NULL, RSRC_CONF,
3232 "A file for logging the server process ID"),
3234 #ifdef AP_MPM_WANT_SET_SCOREBOARD
3235 AP_INIT_TAKE1("ScoreBoardFile", ap_mpm_set_scoreboard, NULL, RSRC_CONF,
3236 "A file for Apache to maintain runtime process management information"),
3238 #ifdef AP_MPM_WANT_SET_LOCKFILE
3239 AP_INIT_TAKE1("LockFile", ap_mpm_set_lockfile, NULL, RSRC_CONF,
3240 "The lockfile used when Apache needs to lock the accept() call"),
3242 #ifdef AP_MPM_WANT_SET_MAX_REQUESTS
3243 AP_INIT_TAKE1("MaxRequestsPerChild", ap_mpm_set_max_requests, NULL, RSRC_CONF,
3244 "Maximum number of requests a particular child serves before dying."),
3246 #ifdef AP_MPM_WANT_SET_COREDUMPDIR
3247 AP_INIT_TAKE1("CoreDumpDirectory", ap_mpm_set_coredumpdir, NULL, RSRC_CONF,
3248 "The location of the directory Apache changes to before dumping core"),
3250 #ifdef AP_MPM_WANT_SET_ACCEPT_LOCK_MECH
3251 AP_INIT_TAKE1("AcceptMutex", ap_mpm_set_accept_lock_mech, NULL, RSRC_CONF,
3252 ap_valid_accept_mutex_string),
3254 #ifdef AP_MPM_WANT_SET_MAX_MEM_FREE
3255 AP_INIT_TAKE1("MaxMemFree", ap_mpm_set_max_mem_free, NULL, RSRC_CONF,
3256 "Maximum number of 1k blocks a particular childs allocator may hold."),
3258 #ifdef AP_MPM_WANT_SET_STACKSIZE
3259 AP_INIT_TAKE1("ThreadStackSize", ap_mpm_set_thread_stacksize, NULL, RSRC_CONF,
3260 "Size in bytes of stack used by threads handling client connections"),
3262 #if AP_ENABLE_EXCEPTION_HOOK
3263 AP_INIT_TAKE1("EnableExceptionHook", ap_mpm_set_exception_hook, NULL, RSRC_CONF,
3264 "Controls whether exception hook may be called after a crash"),
3269 /*****************************************************************
3271 * Core handlers for various phases of server operation...
3274 AP_DECLARE_NONSTD(int) ap_core_translate(request_rec *r)
3276 void *sconf = r->server->module_config;
3277 core_server_config *conf = ap_get_module_config(sconf, &core_module);
3280 /* XXX this seems too specific, this should probably become
3281 * some general-case test
3284 return HTTP_FORBIDDEN;
3286 if (!r->uri || ((r->uri[0] != '/') && strcmp(r->uri, "*"))) {
3287 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
3288 "Invalid URI in request %s", r->the_request);
3289 return HTTP_BAD_REQUEST;
3293 && !strncmp(r->uri, r->server->path, r->server->pathlen)
3294 && (r->server->path[r->server->pathlen - 1] == '/'
3295 || r->uri[r->server->pathlen] == '/'
3296 || r->uri[r->server->pathlen] == '\0'))
3298 /* skip all leading /'s (e.g. http://localhost///foo)
3299 * so we are looking at only the relative path.
3301 char *path = r->uri + r->server->pathlen;
3302 while (*path == '/') {
3305 if ((rv = apr_filepath_merge(&r->filename, conf->ap_document_root, path,
3306 APR_FILEPATH_TRUENAME
3307 | APR_FILEPATH_SECUREROOT, r->pool))
3309 ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
3310 "Cannot map %s to file", r->the_request);
3311 return HTTP_FORBIDDEN;
3313 r->canonical_filename = r->filename;
3317 * Make sure that we do not mess up the translation by adding two
3318 * /'s in a row. This happens under windows when the document
3319 * root ends with a /
3321 /* skip all leading /'s (e.g. http://localhost///foo)
3322 * so we are looking at only the relative path.
3324 char *path = r->uri;
3325 while (*path == '/') {
3328 if ((rv = apr_filepath_merge(&r->filename, conf->ap_document_root, path,
3329 APR_FILEPATH_TRUENAME
3330 | APR_FILEPATH_SECUREROOT, r->pool))
3332 ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r,
3333 "Cannot map %s to file", r->the_request);
3334 return HTTP_FORBIDDEN;
3336 r->canonical_filename = r->filename;
3342 /*****************************************************************
3344 * Test the filesystem name through directory_walk and file_walk
3346 static int core_map_to_storage(request_rec *r)
3350 if ((access_status = ap_directory_walk(r))) {
3351 return access_status;
3354 if ((access_status = ap_file_walk(r))) {
3355 return access_status;
3362 static int do_nothing(request_rec *r) { return OK; }
3365 static int core_override_type(request_rec *r)
3367 core_dir_config *conf =
3368 (core_dir_config *)ap_get_module_config(r->per_dir_config,
3371 /* Check for overrides with ForceType / SetHandler
3373 if (conf->mime_type && strcmp(conf->mime_type, "none"))
3374 ap_set_content_type(r, (char*) conf->mime_type);
3376 if (conf->handler && strcmp(conf->handler, "none"))
3377 r->handler = conf->handler;
3379 /* Deal with the poor soul who is trying to force path_info to be
3380 * accepted within the core_handler, where they will let the subreq
3381 * address its contents. This is toggled by the user in the very
3382 * beginning of the fixup phase, so modules should override the user's
3383 * discretion in their own module fixup phase. It is tristate, if
3384 * the user doesn't specify, the result is 2 (which the module may
3385 * interpret to its own customary behavior.) It won't be touched
3386 * if the value is no longer undefined (2), so any module changing
3387 * the value prior to the fixup phase OVERRIDES the user's choice.
3389 if ((r->used_path_info == AP_REQ_DEFAULT_PATH_INFO)
3390 && (conf->accept_path_info != 3)) {
3391 r->used_path_info = conf->accept_path_info;
3399 static int default_handler(request_rec *r)
3401 conn_rec *c = r->connection;
3402 apr_bucket_brigade *bb;
3406 apr_file_t *fd = NULL;
3407 apr_status_t status;
3408 /* XXX if/when somebody writes a content-md5 filter we either need to
3409 * remove this support or coordinate when to use the filter vs.
3410 * when to use this code
3411 * The current choice of when to compute the md5 here matches the 1.3
3412 * support fairly closely (unlike 1.3, we don't handle computing md5
3413 * when the charset is translated).
3415 int bld_content_md5;
3417 d = (core_dir_config *)ap_get_module_config(r->per_dir_config,
3419 bld_content_md5 = (d->content_md5 & 1)
3420 && r->output_filters->frec->ftype != AP_FTYPE_RESOURCE;
3422 ap_allow_standard_methods(r, MERGE_ALLOW, M_GET, M_OPTIONS, M_POST, -1);
3424 /* If filters intend to consume the request body, they must
3425 * register an InputFilter to slurp the contents of the POST
3426 * data from the POST input stream. It no longer exists when
3427 * the output filters are invoked by the default handler.
3429 if ((errstatus = ap_discard_request_body(r)) != OK) {
3433 if (r->method_number == M_GET || r->method_number == M_POST) {
3434 if (r->finfo.filetype == 0) {
3435 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
3436 "File does not exist: %s", r->filename);
3437 return HTTP_NOT_FOUND;
3440 /* Don't try to serve a dir. Some OSs do weird things with
3443 if (r->finfo.filetype == APR_DIR) {
3444 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
3445 "Attempt to serve directory: %s", r->filename);
3446 return HTTP_NOT_FOUND;
3449 if ((r->used_path_info != AP_REQ_ACCEPT_PATH_INFO) &&
3450 r->path_info && *r->path_info)
3452 /* default to reject */
3453 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
3454 "File does not exist: %s",
3455 apr_pstrcat(r->pool, r->filename, r->path_info, NULL));
3456 return HTTP_NOT_FOUND;
3459 /* We understood the (non-GET) method, but it might not be legal for
3460 this particular resource. Check to see if the 'deliver_script'
3461 flag is set. If so, then we go ahead and deliver the file since
3462 it isn't really content (only GET normally returns content).
3464 Note: based on logic further above, the only possible non-GET
3465 method at this point is POST. In the future, we should enable
3466 script delivery for all methods. */
3467 if (r->method_number != M_GET) {
3468 core_request_config *req_cfg;
3470 req_cfg = ap_get_module_config(r->request_config, &core_module);
3471 if (!req_cfg->deliver_script) {
3472 /* The flag hasn't been set for this request. Punt. */
3473 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
3474 "This resource does not accept the %s method.",
3476 return HTTP_METHOD_NOT_ALLOWED;
3481 if ((status = apr_file_open(&fd, r->filename, APR_READ | APR_BINARY
3482 #if APR_HAS_SENDFILE
3483 | ((d->enable_sendfile == ENABLE_SENDFILE_OFF)
3484 ? 0 : APR_SENDFILE_ENABLED)
3486 , 0, r->pool)) != APR_SUCCESS) {
3487 ap_log_rerror(APLOG_MARK, APLOG_ERR, status, r,
3488 "file permissions deny server access: %s", r->filename);
3489 return HTTP_FORBIDDEN;
3492 ap_update_mtime(r, r->finfo.mtime);
3493 ap_set_last_modified(r);
3495 apr_table_setn(r->headers_out, "Accept-Ranges", "bytes");
3496 ap_set_content_length(r, r->finfo.size);
3497 if ((errstatus = ap_meets_conditions(r)) != OK) {
3502 if (bld_content_md5) {
3503 apr_table_setn(r->headers_out, "Content-MD5",
3504 ap_md5digest(r->pool, fd));
3507 bb = apr_brigade_create(r->pool, c->bucket_alloc);
3508 #if APR_HAS_LARGE_FILES
3509 #if APR_HAS_SENDFILE
3510 if ((d->enable_sendfile != ENABLE_SENDFILE_OFF) &&
3514 (r->finfo.size > AP_MAX_SENDFILE)) {
3515 /* APR_HAS_LARGE_FILES issue; must split into mutiple buckets,
3516 * no greater than MAX(apr_size_t), and more granular than that
3517 * in case the brigade code/filters attempt to read it directly.
3519 apr_off_t fsize = r->finfo.size;
3520 e = apr_bucket_file_create(fd, 0, AP_MAX_SENDFILE, r->pool,
3522 while (fsize > AP_MAX_SENDFILE) {
3524 apr_bucket_copy(e, &ce);
3525 APR_BRIGADE_INSERT_TAIL(bb, ce);
3526 e->start += AP_MAX_SENDFILE;
3527 fsize -= AP_MAX_SENDFILE;
3529 e->length = (apr_size_t)fsize; /* Resize just the last bucket */
3533 e = apr_bucket_file_create(fd, 0, (apr_size_t)r->finfo.size,
3534 r->pool, c->bucket_alloc);
3537 if (d->enable_mmap == ENABLE_MMAP_OFF) {
3538 (void)apr_bucket_file_enable_mmap(e, 0);
3541 APR_BRIGADE_INSERT_TAIL(bb, e);
3542 e = apr_bucket_eos_create(c->bucket_alloc);
3543 APR_BRIGADE_INSERT_TAIL(bb, e);
3545 return ap_pass_brigade(r->output_filters, bb);
3547 else { /* unusual method (not GET or POST) */
3548 if (r->method_number == M_INVALID) {
3549 ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
3550 "Invalid method in request %s", r->the_request);
3551 return HTTP_NOT_IMPLEMENTED;
3554 if (r->method_number == M_OPTIONS) {
3555 return ap_send_http_options(r);
3557 return HTTP_METHOD_NOT_ALLOWED;
3561 typedef struct net_time_filter_ctx {
3564 } net_time_filter_ctx_t;
3565 static int net_time_filter(ap_filter_t *f, apr_bucket_brigade *b,
3566 ap_input_mode_t mode, apr_read_type_e block,
3567 apr_off_t readbytes)
3569 net_time_filter_ctx_t *ctx = f->ctx;
3570 int keptalive = f->c->keepalive == AP_CONN_KEEPALIVE;
3573 f->ctx = ctx = apr_palloc(f->r->pool, sizeof(*ctx));
3574 ctx->first_line = 1;
3575 ctx->csd = ap_get_module_config(f->c->conn_config, &core_module);
3578 if (mode != AP_MODE_INIT && mode != AP_MODE_EATCRLF) {
3579 if (ctx->first_line) {
3580 apr_socket_timeout_set(ctx->csd,
3582 ? f->c->base_server->keep_alive_timeout
3583 : f->c->base_server->timeout);
3584 ctx->first_line = 0;
3588 apr_socket_timeout_set(ctx->csd, f->c->base_server->timeout);
3592 return ap_get_brigade(f->next, b, mode, block, readbytes);
3596 * Remove all zero length buckets from the brigade.
3598 #define BRIGADE_NORMALIZE(b) \
3600 apr_bucket *e = APR_BRIGADE_FIRST(b); \
3602 if (e->length == 0 && !APR_BUCKET_IS_METADATA(e)) { \
3604 d = APR_BUCKET_NEXT(e); \
3605 apr_bucket_delete(e); \
3608 e = APR_BUCKET_NEXT(e); \
3609 } while (!APR_BRIGADE_EMPTY(b) && (e != APR_BRIGADE_SENTINEL(b))); \
3612 static int core_input_filter(ap_filter_t *f, apr_bucket_brigade *b,
3613 ap_input_mode_t mode, apr_read_type_e block,
3614 apr_off_t readbytes)
3618 core_net_rec *net = f->ctx;
3619 core_ctx_t *ctx = net->in_ctx;
3623 if (mode == AP_MODE_INIT) {
3625 * this mode is for filters that might need to 'initialize'
3626 * a connection before reading request data from a client.
3627 * NNTP over SSL for example needs to handshake before the
3628 * server sends the welcome message.
3629 * such filters would have changed the mode before this point
3630 * is reached. however, protocol modules such as NNTP should
3631 * not need to know anything about SSL. given the example, if
3632 * SSL is not in the filter chain, AP_MODE_INIT is a noop.
3639 ctx = apr_pcalloc(f->c->pool, sizeof(*ctx));
3640 ctx->b = apr_brigade_create(f->c->pool, f->c->bucket_alloc);
3642 /* seed the brigade with the client socket. */
3643 e = apr_bucket_socket_create(net->client_socket, f->c->bucket_alloc);
3644 APR_BRIGADE_INSERT_TAIL(ctx->b, e);
3647 else if (APR_BRIGADE_EMPTY(ctx->b)) {
3651 /* ### This is bad. */
3652 BRIGADE_NORMALIZE(ctx->b);
3654 /* check for empty brigade again *AFTER* BRIGADE_NORMALIZE()
3655 * If we have lost our socket bucket (see above), we are EOF.
3657 * Ideally, this should be returning SUCCESS with EOS bucket, but
3658 * some higher-up APIs (spec. read_request_line via ap_rgetline)
3659 * want an error code. */
3660 if (APR_BRIGADE_EMPTY(ctx->b)) {
3664 if (mode == AP_MODE_GETLINE) {
3665 /* we are reading a single LF line, e.g. the HTTP headers */
3666 rv = apr_brigade_split_line(b, ctx->b, block, HUGE_STRING_LEN);
3667 /* We should treat EAGAIN here the same as we do for EOF (brigade is
3668 * empty). We do this by returning whatever we have read. This may
3669 * or may not be bogus, but is consistent (for now) with EOF logic.
3671 if (APR_STATUS_IS_EAGAIN(rv)) {
3677 /* ### AP_MODE_PEEK is a horrific name for this mode because we also
3678 * eat any CRLFs that we see. That's not the obvious intention of
3679 * this mode. Determine whether anyone actually uses this or not. */
3680 if (mode == AP_MODE_EATCRLF) {
3684 /* The purpose of this loop is to ignore any CRLF (or LF) at the end
3685 * of a request. Many browsers send extra lines at the end of POST
3686 * requests. We use the PEEK method to determine if there is more
3687 * data on the socket, so that we know if we should delay sending the
3688 * end of one request until we have served the second request in a
3689 * pipelined situation. We don't want to actually delay sending a
3690 * response if the server finds a CRLF (or LF), becuause that doesn't
3691 * mean that there is another request, just a blank line.
3694 if (APR_BRIGADE_EMPTY(ctx->b))
3697 e = APR_BRIGADE_FIRST(ctx->b);
3699 rv = apr_bucket_read(e, &str, &len, APR_NONBLOCK_READ);
3701 if (rv != APR_SUCCESS)
3705 while (c < str + len) {
3706 if (*c == APR_ASCII_LF)
3708 else if (*c == APR_ASCII_CR && *(c + 1) == APR_ASCII_LF)
3714 /* If we reach here, we were a bucket just full of CRLFs, so
3715 * just toss the bucket. */
3716 /* FIXME: Is this the right thing to do in the core? */
3717 apr_bucket_delete(e);
3722 /* If mode is EXHAUSTIVE, we want to just read everything until the end
3723 * of the brigade, which in this case means the end of the socket.
3724 * To do this, we attach the brigade that has currently been setaside to
3725 * the brigade that was passed down, and send that brigade back.
3727 * NOTE: This is VERY dangerous to use, and should only be done with
3728 * extreme caution. However, the Perchild MPM needs this feature
3729 * if it is ever going to work correctly again. With this, the Perchild
3730 * MPM can easily request the socket and all data that has been read,
3731 * which means that it can pass it to the correct child process.
3733 if (mode == AP_MODE_EXHAUSTIVE) {
3736 /* Tack on any buckets that were set aside. */
3737 APR_BRIGADE_CONCAT(b, ctx->b);
3739 /* Since we've just added all potential buckets (which will most
3740 * likely simply be the socket bucket) we know this is the end,
3741 * so tack on an EOS too. */
3742 /* We have read until the brigade was empty, so we know that we
3744 e = apr_bucket_eos_create(f->c->bucket_alloc);
3745 APR_BRIGADE_INSERT_TAIL(b, e);
3749 /* read up to the amount they specified. */
3750 if (mode == AP_MODE_READBYTES || mode == AP_MODE_SPECULATIVE) {
3752 apr_bucket_brigade *newbb;
3754 AP_DEBUG_ASSERT(readbytes > 0);
3756 e = APR_BRIGADE_FIRST(ctx->b);
3757 rv = apr_bucket_read(e, &str, &len, block);
3759 if (APR_STATUS_IS_EAGAIN(rv)) {
3762 else if (rv != APR_SUCCESS) {
3765 else if (block == APR_BLOCK_READ && len == 0) {
3766 /* We wanted to read some bytes in blocking mode. We read
3767 * 0 bytes. Hence, we now assume we are EOS.
3769 * When we are in normal mode, return an EOS bucket to the
3771 * When we are in speculative mode, leave ctx->b empty, so
3772 * that the next call returns an EOS bucket.
3774 apr_bucket_delete(e);
3776 if (mode == AP_MODE_READBYTES) {
3777 e = apr_bucket_eos_create(f->c->bucket_alloc);
3778 APR_BRIGADE_INSERT_TAIL(b, e);
3783 /* We can only return at most what we read. */
3784 if (len < readbytes) {
3788 rv = apr_brigade_partition(ctx->b, readbytes, &e);
3789 if (rv != APR_SUCCESS) {
3793 /* Must do split before CONCAT */
3794 newbb = apr_brigade_split(ctx->b, e);
3796 if (mode == AP_MODE_READBYTES) {
3797 APR_BRIGADE_CONCAT(b, ctx->b);
3799 else if (mode == AP_MODE_SPECULATIVE) {
3800 apr_bucket *copy_bucket;
3802 for (e = APR_BRIGADE_FIRST(ctx->b);
3803 e != APR_BRIGADE_SENTINEL(ctx->b);
3804 e = APR_BUCKET_NEXT(e))
3806 rv = apr_bucket_copy(e, ©_bucket);
3807 if (rv != APR_SUCCESS) {
3810 APR_BRIGADE_INSERT_TAIL(b, copy_bucket);
3814 /* Take what was originally there and place it back on ctx->b */
3815 APR_BRIGADE_CONCAT(ctx->b, newbb);
3820 #define MAX_IOVEC_TO_WRITE 16
3822 /* Optional function coming from mod_logio, used for logging of output
3825 static APR_OPTIONAL_FN_TYPE(ap_logio_add_bytes_out) *logio_add_bytes_out;
3827 static apr_status_t core_output_filter(ap_filter_t *f, apr_bucket_brigade *b)
3830 apr_bucket_brigade *more;
3832 core_net_rec *net = f->ctx;
3833 core_output_filter_ctx_t *ctx = net->out_ctx;
3834 apr_read_type_e eblock = APR_NONBLOCK_READ;
3835 apr_pool_t *input_pool = b->p;
3838 ctx = apr_pcalloc(c->pool, sizeof(*ctx));
3842 /* If we have a saved brigade, concatenate the new brigade to it */
3844 APR_BRIGADE_CONCAT(ctx->b, b);
3849 /* Perform multiple passes over the brigade, sending batches of output
3850 to the connection. */
3851 while (b && !APR_BRIGADE_EMPTY(b)) {
3852 apr_size_t nbytes = 0;
3853 apr_bucket *last_e = NULL; /* initialized for debugging */
3856 /* one group of iovecs per pass over the brigade */
3857 apr_size_t nvec = 0;
3858 apr_size_t nvec_trailers = 0;
3859 struct iovec vec[MAX_IOVEC_TO_WRITE];
3860 struct iovec vec_trailers[MAX_IOVEC_TO_WRITE];
3862 /* one file per pass over the brigade */
3863 apr_file_t *fd = NULL;
3864 apr_size_t flen = 0;
3865 apr_off_t foffset = 0;
3867 /* keep track of buckets that we've concatenated
3868 * to avoid small writes
3870 apr_bucket *last_merged_bucket = NULL;
3872 /* tail of brigade if we need another pass */
3875 /* Iterate over the brigade: collect iovecs and/or a file */
3876 for (e = APR_BRIGADE_FIRST(b);
3877 e != APR_BRIGADE_SENTINEL(b);
3878 e = APR_BUCKET_NEXT(e))
3880 /* keep track of the last bucket processed */
3882 if (APR_BUCKET_IS_EOS(e)) {
3885 if (AP_BUCKET_IS_EOC(e)) {
3886 apr_bucket_delete(e);
3888 else if (APR_BUCKET_IS_FLUSH(e)) {
3889 if (e != APR_BRIGADE_LAST(b)) {
3890 more = apr_brigade_split(b, APR_BUCKET_NEXT(e));
3895 /* It doesn't make any sense to use sendfile for a file bucket
3896 * that represents 10 bytes.
3898 else if (APR_BUCKET_IS_FILE(e)
3899 && (e->length >= AP_MIN_SENDFILE_BYTES)) {
3900 apr_bucket_file *a = e->data;
3902 /* We can't handle more than one file bucket at a time
3903 * so we split here and send the file we have already
3907 more = apr_brigade_split(b, e);
3919 rv = apr_bucket_read(e, &str, &n, eblock);
3920 if (APR_STATUS_IS_EAGAIN(rv)) {
3921 /* send what we have so far since we shouldn't expect more
3922 * output for a while... next time we read, block
3924 more = apr_brigade_split(b, e);
3925 eblock = APR_BLOCK_READ;
3928 eblock = APR_NONBLOCK_READ;
3931 if (nvec == MAX_IOVEC_TO_WRITE) {
3932 /* woah! too many. buffer them up, for use later. */
3933 apr_bucket *temp, *next;
3934 apr_bucket_brigade *temp_brig;
3936 if (nbytes >= AP_MIN_BYTES_TO_WRITE) {
3937 /* We have enough data in the iovec
3938 * to justify doing a writev
3940 more = apr_brigade_split(b, e);
3944 /* Create a temporary brigade as a means
3945 * of concatenating a bunch of buckets together
3947 if (last_merged_bucket) {
3948 /* If we've concatenated together small
3949 * buckets already in a previous pass,
3950 * the initial buckets in this brigade
3951 * are heap buckets that may have extra
3952 * space left in them (because they
3953 * were created by apr_brigade_write()).
3954 * We can take advantage of this by
3955 * building the new temp brigade out of
3956 * these buckets, so that the content
3957 * in them doesn't have to be copied again.
3959 apr_bucket_brigade *bb;
3960 bb = apr_brigade_split(b,
3961 APR_BUCKET_NEXT(last_merged_bucket));
3966 temp_brig = apr_brigade_create(f->c->pool,
3967 f->c->bucket_alloc);
3970 temp = APR_BRIGADE_FIRST(b);
3973 rv = apr_bucket_read(temp, &str, &n, APR_BLOCK_READ);
3974 apr_brigade_write(temp_brig, NULL, NULL, str, n);
3976 temp = APR_BUCKET_NEXT(temp);
3977 apr_bucket_delete(d);
3982 temp = APR_BRIGADE_FIRST(temp_brig);
3983 APR_BUCKET_REMOVE(temp);
3984 APR_BRIGADE_INSERT_HEAD(b, temp);
3985 apr_bucket_read(temp, &str, &n, APR_BLOCK_READ);
3986 vec[nvec].iov_base = (char*) str;
3987 vec[nvec].iov_len = n;
3990 /* Just in case the temporary brigade has
3991 * multiple buckets, recover the rest of
3992 * them and put them in the brigade that
3995 for (next = APR_BRIGADE_FIRST(temp_brig);
3996 next != APR_BRIGADE_SENTINEL(temp_brig);
3997 next = APR_BRIGADE_FIRST(temp_brig)) {
3998 APR_BUCKET_REMOVE(next);
3999 APR_BUCKET_INSERT_AFTER(temp, next);
4001 apr_bucket_read(next, &str, &n,
4003 vec[nvec].iov_base = (char*) str;
4004 vec[nvec].iov_len = n;
4008 apr_brigade_destroy(temp_brig);
4010 last_merged_bucket = temp;
4015 vec[nvec].iov_base = (char*) str;
4016 vec[nvec].iov_len = n;
4021 /* The bucket is a trailer to a file bucket */
4023 if (nvec_trailers == MAX_IOVEC_TO_WRITE) {
4024 /* woah! too many. stop now. */
4025 more = apr_brigade_split(b, e);
4029 vec_trailers[nvec_trailers].iov_base = (char*) str;
4030 vec_trailers[nvec_trailers].iov_len = n;
4040 /* Completed iterating over the brigade, now determine if we want
4041 * to buffer the brigade or send the brigade out on the network.
4043 * Save if we haven't accumulated enough bytes to send, and:
4045 * 1) we didn't see a file, we don't have more passes over the
4046 * brigade to perform, AND we didn't stop at a FLUSH bucket.
4047 * (IOW, we will save plain old bytes such as HTTP headers)
4049 * 2) we hit the EOS and have a keep-alive connection
4050 * (IOW, this response is a bit more complex, but we save it
4051 * with the hope of concatenating with another response)
4053 if (nbytes + flen < AP_MIN_BYTES_TO_WRITE
4054 && ((!fd && !more && !APR_BUCKET_IS_FLUSH(last_e))
4055 || (APR_BUCKET_IS_EOS(last_e)
4056 && c->keepalive == AP_CONN_KEEPALIVE))) {
4058 /* NEVER save an EOS in here. If we are saving a brigade with
4059 * an EOS bucket, then we are doing keepalive connections, and
4060 * we want to process to second request fully.
4062 if (APR_BUCKET_IS_EOS(last_e)) {
4064 int file_bucket_saved = 0;
4065 apr_bucket_delete(last_e);
4066 for (bucket = APR_BRIGADE_FIRST(b);
4067 bucket != APR_BRIGADE_SENTINEL(b);
4068 bucket = APR_BUCKET_NEXT(bucket)) {
4070 /* Do a read on each bucket to pull in the
4071 * data from pipe and socket buckets, so
4072 * that we don't leave their file descriptors
4073 * open indefinitely. Do the same for file
4074 * buckets, with one exception: allow the
4075 * first file bucket in the brigade to remain
4076 * a file bucket, so that we don't end up
4077 * doing an mmap+memcpy every time a client
4078 * requests a <8KB file over a keepalive
4081 if (APR_BUCKET_IS_FILE(bucket) && !file_bucket_saved) {
4082 file_bucket_saved = 1;
4087 rv = apr_bucket_read(bucket, &buf, &len,
4089 if (rv != APR_SUCCESS) {
4090 ap_log_error(APLOG_MARK, APLOG_ERR, rv,
4091 c->base_server, "core_output_filter:"
4092 " Error reading from bucket.");
4093 return HTTP_INTERNAL_SERVER_ERROR;
4098 if (!ctx->deferred_write_pool) {
4099 apr_pool_create(&ctx->deferred_write_pool, c->pool);
4100 apr_pool_tag(ctx->deferred_write_pool, "deferred_write");
4102 ap_save_brigade(f, &ctx->b, &b, ctx->deferred_write_pool);
4109 apr_size_t bytes_sent;
4111 #if APR_HAS_SENDFILE
4112 apr_int32_t flags = 0;
4115 memset(&hdtr, '\0', sizeof(hdtr));
4117 hdtr.numheaders = nvec;
4121 if (nvec_trailers) {
4122 hdtr.numtrailers = nvec_trailers;
4123 hdtr.trailers = vec_trailers;
4126 #if APR_HAS_SENDFILE
4127 if (apr_file_flags_get(fd) & APR_SENDFILE_ENABLED) {
4129 if (c->keepalive == AP_CONN_CLOSE && APR_BUCKET_IS_EOS(last_e)) {
4130 /* Prepare the socket to be reused */
4131 flags |= APR_SENDFILE_DISCONNECT_SOCKET;
4134 rv = sendfile_it_all(net, /* the network information */
4135 fd, /* the file to send */
4136 &hdtr, /* header and trailer iovecs */
4137 foffset, /* offset in the file to begin
4139 flen, /* length of file */
4140 nbytes + flen, /* total length including
4142 &bytes_sent, /* how many bytes were
4144 flags); /* apr_sendfile flags */
4149 rv = emulate_sendfile(net, fd, &hdtr, foffset, flen,
4153 if (logio_add_bytes_out && bytes_sent > 0)
4154 logio_add_bytes_out(c, bytes_sent);
4159 apr_size_t bytes_sent;
4161 rv = writev_it_all(net->client_socket,
4163 nbytes, &bytes_sent);
4165 if (logio_add_bytes_out && bytes_sent > 0)
4166 logio_add_bytes_out(c, bytes_sent);
4169 apr_brigade_destroy(b);
4171 /* drive cleanups for resources which were set aside
4172 * this may occur before or after termination of the request which
4173 * created the resource
4175 if (ctx->deferred_write_pool) {
4176 if (more && more->p == ctx->deferred_write_pool) {
4177 /* "more" belongs to the deferred_write_pool,
4178 * which is about to be cleared.
4180 if (APR_BRIGADE_EMPTY(more)) {
4184 /* uh oh... change more's lifetime
4185 * to the input brigade's lifetime
4187 apr_bucket_brigade *tmp_more = more;
4189 ap_save_brigade(f, &more, &tmp_more, input_pool);
4192 apr_pool_clear(ctx->deferred_write_pool);
4195 if (rv != APR_SUCCESS) {
4196 ap_log_error(APLOG_MARK, APLOG_INFO, rv, c->base_server,
4197 "core_output_filter: writing data to the network");
4200 apr_brigade_destroy(more);
4202 /* No need to check for SUCCESS, we did that above. */
4203 if (!APR_STATUS_IS_EAGAIN(rv)) {
4207 /* The client has aborted, but the request was successful. We
4208 * will report success, and leave it to the access and error
4209 * logs to note that the connection was aborted.
4216 } /* end while () */
4221 static int core_post_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)
4223 logio_add_bytes_out = APR_RETRIEVE_OPTIONAL_FN(ap_logio_add_bytes_out);
4224 ident_lookup = APR_RETRIEVE_OPTIONAL_FN(ap_ident_lookup);
4226 ap_set_version(pconf);
4227 ap_setup_make_content_type(pconf);
4231 static void core_insert_filter(request_rec *r)
4233 core_dir_config *conf = (core_dir_config *)
4234 ap_get_module_config(r->per_dir_config,
4236 const char *filter, *filters = conf->output_filters;
4239 while (*filters && (filter = ap_getword(r->pool, &filters, ';'))) {
4240 ap_add_output_filter(filter, NULL, r, r->connection);
4244 filters = conf->input_filters;
4246 while (*filters && (filter = ap_getword(r->pool, &filters, ';'))) {
4247 ap_add_input_filter(filter, NULL, r, r->connection);
4252 static apr_size_t num_request_notes = AP_NUM_STD_NOTES;
4254 static apr_status_t reset_request_notes(void *dummy)
4256 num_request_notes = AP_NUM_STD_NOTES;
4260 AP_DECLARE(apr_size_t) ap_register_request_note(void)
4262 apr_pool_cleanup_register(apr_hook_global_pool, NULL, reset_request_notes,
4263 apr_pool_cleanup_null);
4264 return num_request_notes++;
4267 AP_DECLARE(void **) ap_get_request_note(request_rec *r, apr_size_t note_num)
4269 core_request_config *req_cfg;
4271 if (note_num >= num_request_notes) {
4275 req_cfg = (core_request_config *)
4276 ap_get_module_config(r->request_config, &core_module);
4282 return &(req_cfg->notes[note_num]);
4285 static int core_create_req(request_rec *r)
4287 /* Alloc the config struct and the array of request notes in
4288 * a single block for efficiency
4290 core_request_config *req_cfg;
4292 req_cfg = apr_pcalloc(r->pool, sizeof(core_request_config) +
4293 sizeof(void *) * num_request_notes);
4294 req_cfg->notes = (void **)((char *)req_cfg + sizeof(core_request_config));
4296 /* ### temporarily enable script delivery as the default */
4297 req_cfg->deliver_script = 1;
4300 core_request_config *main_req_cfg = (core_request_config *)
4301 ap_get_module_config(r->main->request_config, &core_module);
4302 req_cfg->bb = main_req_cfg->bb;
4305 req_cfg->bb = apr_brigade_create(r->pool, r->connection->bucket_alloc);
4307 ap_add_input_filter_handle(ap_net_time_filter_handle,
4308 NULL, r, r->connection);
4312 ap_set_module_config(r->request_config, &core_module, req_cfg);
4314 /* Begin by presuming any module can make its own path_info assumptions,
4315 * until some module interjects and changes the value.
4317 r->used_path_info = AP_REQ_DEFAULT_PATH_INFO;
4322 static int core_create_proxy_req(request_rec *r, request_rec *pr)
4324 return core_create_req(pr);
4327 static conn_rec *core_create_conn(apr_pool_t *ptrans, server_rec *server,
4328 apr_socket_t *csd, long id, void *sbh,
4329 apr_bucket_alloc_t *alloc)
4332 conn_rec *c = (conn_rec *) apr_pcalloc(ptrans, sizeof(conn_rec));
4335 (void)ap_update_child_status(c->sbh, SERVER_BUSY_READ, (request_rec *)NULL);
4337 /* Got a connection structure, so initialize what fields we can
4338 * (the rest are zeroed out by pcalloc).
4340 c->conn_config = ap_create_conn_config(ptrans);
4341 c->notes = apr_table_make(ptrans, 5);
4344 if ((rv = apr_socket_addr_get(&c->local_addr, APR_LOCAL, csd))
4346 ap_log_error(APLOG_MARK, APLOG_INFO, rv, server,
4347 "apr_socket_addr_get(APR_LOCAL)");
4348 apr_socket_close(csd);
4352 apr_sockaddr_ip_get(&c->local_ip, c->local_addr);
4353 if ((rv = apr_socket_addr_get(&c->remote_addr, APR_REMOTE, csd))
4355 ap_log_error(APLOG_MARK, APLOG_INFO, rv, server,
4356 "apr_socket_addr_get(APR_REMOTE)");
4357 apr_socket_close(csd);
4361 apr_sockaddr_ip_get(&c->remote_ip, c->remote_addr);
4362 c->base_server = server;
4365 c->bucket_alloc = alloc;
4370 static int core_pre_connection(conn_rec *c, void *csd)
4372 core_net_rec *net = apr_palloc(c->pool, sizeof(*net));
4374 #ifdef AP_MPM_DISABLE_NAGLE_ACCEPTED_SOCK
4375 /* BillS says perhaps this should be moved to the MPMs. Some OSes
4376 * allow listening socket attributes to be inherited by the
4377 * accept sockets which means this call only needs to be made
4378 * once on the listener
4380 ap_sock_disable_nagle(csd);
4384 net->out_ctx = NULL;
4385 net->client_socket = csd;
4387 ap_set_module_config(net->c->conn_config, &core_module, csd);
4388 ap_add_input_filter_handle(ap_core_input_filter_handle, net, NULL, net->c);
4389 ap_add_output_filter_handle(ap_core_output_filter_handle, net, NULL, net->c);
4393 static void register_hooks(apr_pool_t *p)
4395 /* create_connection and install_transport_filters are
4396 * hooks that should always be APR_HOOK_REALLY_LAST to give other
4397 * modules the opportunity to install alternate network transports
4398 * and stop other functions from being run.
4400 ap_hook_create_connection(core_create_conn, NULL, NULL,
4401 APR_HOOK_REALLY_LAST);
4402 ap_hook_pre_connection(core_pre_connection, NULL, NULL,
4403 APR_HOOK_REALLY_LAST);
4405 ap_hook_post_config(core_post_config,NULL,NULL,APR_HOOK_REALLY_FIRST);
4406 ap_hook_translate_name(ap_core_translate,NULL,NULL,APR_HOOK_REALLY_LAST);
4407 ap_hook_map_to_storage(core_map_to_storage,NULL,NULL,APR_HOOK_REALLY_LAST);
4408 ap_hook_open_logs(ap_open_logs,NULL,NULL,APR_HOOK_REALLY_FIRST);
4409 ap_hook_handler(default_handler,NULL,NULL,APR_HOOK_REALLY_LAST);
4410 /* FIXME: I suspect we can eliminate the need for these do_nothings - Ben */
4411 ap_hook_type_checker(do_nothing,NULL,NULL,APR_HOOK_REALLY_LAST);
4412 ap_hook_fixups(core_override_type,NULL,NULL,APR_HOOK_REALLY_FIRST);
4413 ap_hook_access_checker(do_nothing,NULL,NULL,APR_HOOK_REALLY_LAST);
4414 ap_hook_create_request(core_create_req, NULL, NULL, APR_HOOK_MIDDLE);
4415 APR_OPTIONAL_HOOK(proxy, create_req, core_create_proxy_req, NULL, NULL,
4417 ap_hook_pre_mpm(ap_create_scoreboard, NULL, NULL, APR_HOOK_MIDDLE);
4419 /* register the core's insert_filter hook and register core-provided
4422 ap_hook_insert_filter(core_insert_filter, NULL, NULL, APR_HOOK_MIDDLE);
4424 ap_core_input_filter_handle =
4425 ap_register_input_filter("CORE_IN", core_input_filter,
4426 NULL, AP_FTYPE_NETWORK);
4427 ap_net_time_filter_handle =
4428 ap_register_input_filter("NET_TIME", net_time_filter,
4429 NULL, AP_FTYPE_PROTOCOL);
4430 ap_content_length_filter_handle =
4431 ap_register_output_filter("CONTENT_LENGTH", ap_content_length_filter,
4432 NULL, AP_FTYPE_PROTOCOL);
4433 ap_core_output_filter_handle =
4434 ap_register_output_filter("CORE", core_output_filter,
4435 NULL, AP_FTYPE_NETWORK);
4436 ap_subreq_core_filter_handle =
4437 ap_register_output_filter("SUBREQ_CORE", ap_sub_req_output_filter,
4438 NULL, AP_FTYPE_CONTENT_SET);
4440 ap_register_output_filter("OLD_WRITE", ap_old_write_filter,
4441 NULL, AP_FTYPE_RESOURCE - 10);
4444 AP_DECLARE_DATA module core_module = {
4445 STANDARD20_MODULE_STUFF,
4446 create_core_dir_config, /* create per-directory config structure */
4447 merge_core_dir_configs, /* merge per-directory config structures */
4448 create_core_server_config, /* create per-server config structure */
4449 merge_core_server_configs, /* merge per-server config structures */
4450 core_cmds, /* command apr_table_t */
4451 register_hooks /* register hooks */