1 /* ====================================================================
2 * The Apache Software License, Version 1.1
4 * Copyright (c) 2000-2001 The Apache Software Foundation. All rights
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in
16 * the documentation and/or other materials provided with the
19 * 3. The end-user documentation included with the redistribution,
20 * if any, must include the following acknowledgment:
21 * "This product includes software developed by the
22 * Apache Software Foundation (http://www.apache.org/)."
23 * Alternately, this acknowledgment may appear in the software itself,
24 * if and wherever such third-party acknowledgments normally appear.
26 * 4. The names "Apache" and "Apache Software Foundation" must
27 * not be used to endorse or promote products derived from this
28 * software without prior written permission. For written
29 * permission, please contact apache@apache.org.
31 * 5. Products derived from this software may not be called "Apache",
32 * nor may "Apache" appear in their name, without prior written
33 * permission of the Apache Software Foundation.
35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
36 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
37 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
38 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
39 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
40 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
41 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
42 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
43 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
44 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
45 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
47 * ====================================================================
49 * This software consists of voluntary contributions made by many
50 * individuals on behalf of the Apache Software Foundation. For more
51 * information on the Apache Software Foundation, please see
52 * <http://www.apache.org/>.
54 * Portions of this software are based upon public domain software
55 * originally written at the National Center for Supercomputing Applications,
56 * University of Illinois, Urbana-Champaign.
60 #include "apr_strings.h"
62 #include "apr_fnmatch.h"
64 #include "apr_thread_proc.h" /* for RLIMIT stuff */
65 #include "apr_hooks.h"
67 #define APR_WANT_IOVEC
68 #define APR_WANT_STRFUNC
69 #define APR_WANT_MEMFUNC
73 #include "ap_config.h"
75 #include "http_config.h"
76 #include "http_core.h"
77 #include "http_protocol.h" /* For index_of_response(). Grump. */
78 #include "http_request.h"
79 #include "http_vhost.h"
80 #include "http_main.h" /* For the default_handler below... */
84 #include "http_connection.h"
85 #include "apr_buckets.h"
86 #include "util_filter.h"
87 #include "util_ebcdic.h"
89 #include "mpm_common.h"
90 #include "scoreboard.h"
92 #include "mod_proxy.h"
93 #include "ap_listen.h"
95 /* LimitXMLRequestBody handling */
96 #define AP_LIMIT_UNSET ((long) -1)
97 #define AP_DEFAULT_LIMIT_XML_BODY ((size_t)1000000)
99 #define AP_MIN_SENDFILE_BYTES (256)
102 APR_HOOK_LINK(get_mgmt_items)
105 AP_IMPLEMENT_HOOK_RUN_ALL(int, get_mgmt_items,
106 (apr_pool_t *p, const char *val, apr_hash_t *ht),
107 (p, val, ht), OK, DECLINED)
109 /* Server core module... This module provides support for really basic
110 * server operations, including options and commands which control the
111 * operation of other modules. Consider this the bureaucracy module.
113 * The core module also defines handlers, etc., do handle just enough
114 * to allow a server with the core module ONLY to actually serve documents
115 * (though it slaps DefaultType on all of 'em); this was useful in testing,
116 * but may not be worth preserving.
118 * This file could almost be mod_core.c, except for the stuff which affects
119 * the http_conf_globals.
122 /* Handles for core filters */
123 ap_filter_rec_t *ap_subreq_core_filter_handle;
124 ap_filter_rec_t *ap_core_output_filter_handle;
125 ap_filter_rec_t *ap_content_length_filter_handle;
126 ap_filter_rec_t *ap_net_time_filter_handle;
127 ap_filter_rec_t *ap_core_input_filter_handle;
129 static void *create_core_dir_config(apr_pool_t *a, char *dir)
131 core_dir_config *conf;
133 conf = (core_dir_config *)apr_pcalloc(a, sizeof(core_dir_config));
135 /* conf->r and conf->d[_*] are initialized by dirsection() or left NULL */
137 conf->opts = dir ? OPT_UNSET : OPT_UNSET|OPT_ALL;
138 conf->opts_add = conf->opts_remove = OPT_NONE;
139 conf->override = dir ? OR_UNSET : OR_UNSET|OR_ALL;
141 conf->content_md5 = 2;
142 conf->accept_path_info = 3;
144 conf->use_canonical_name = USE_CANONICAL_NAME_UNSET;
146 conf->hostname_lookups = HOSTNAME_LOOKUP_UNSET;
147 conf->do_rfc1413 = DEFAULT_RFC1413 | 2; /* set bit 1 to indicate default */
148 conf->satisfy = SATISFY_NOSPEC;
151 conf->limit_cpu = NULL;
153 #if defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined(RLIMIT_AS)
154 conf->limit_mem = NULL;
157 conf->limit_nproc = NULL;
160 conf->limit_req_body = 0;
161 conf->limit_xml_body = AP_LIMIT_UNSET;
162 conf->sec_file = apr_array_make(a, 2, sizeof(ap_conf_vector_t *));
164 conf->server_signature = srv_sig_unset;
166 conf->add_default_charset = ADD_DEFAULT_CHARSET_UNSET;
167 conf->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME;
169 /* Overriding all negotiation
171 conf->mime_type = NULL;
172 conf->handler = NULL;
173 conf->output_filters = NULL;
174 conf->input_filters = NULL;
177 * Flag for use of inodes in ETags.
179 conf->etag_bits = ETAG_UNSET;
180 conf->etag_add = ETAG_UNSET;
181 conf->etag_remove = ETAG_UNSET;
187 * Overlay one hash table of ct_output_filters onto another
189 static void *merge_ct_filters(apr_pool_t *p,
192 const void *overlay_val,
193 const void *base_val,
196 ap_filter_rec_t *cur;
197 const ap_filter_rec_t *overlay_info = (const ap_filter_rec_t *)overlay_val;
198 const ap_filter_rec_t *base_info = (const ap_filter_rec_t *)base_val;
202 while (overlay_info) {
203 ap_filter_rec_t *new;
205 new = apr_pcalloc(p, sizeof(ap_filter_rec_t));
206 new->name = apr_pstrdup(p, overlay_info->name);
209 overlay_info = overlay_info->next;
216 /* We can't have dups. */
219 if (!strcasecmp(base_info->name, f->name)) {
226 f = apr_pcalloc(p, sizeof(ap_filter_rec_t));
227 f->name = apr_pstrdup(p, base_info->name);
231 base_info = base_info->next;
237 static void *merge_core_dir_configs(apr_pool_t *a, void *basev, void *newv)
239 core_dir_config *base = (core_dir_config *)basev;
240 core_dir_config *new = (core_dir_config *)newv;
241 core_dir_config *conf;
244 /* Create this conf by duplicating the base, replacing elements
245 * (or creating copies for merging) where new-> values exist.
247 conf = (core_dir_config *)apr_palloc(a, sizeof(core_dir_config));
248 memcpy(conf, base, sizeof(core_dir_config));
251 conf->d_is_fnmatch = new->d_is_fnmatch;
252 conf->d_components = new->d_components;
255 if (new->opts & OPT_UNSET) {
256 /* there was no explicit setting of new->opts, so we merge
257 * preserve the invariant (opts_add & opts_remove) == 0
259 conf->opts_add = (conf->opts_add & ~new->opts_remove) | new->opts_add;
260 conf->opts_remove = (conf->opts_remove & ~new->opts_add)
262 conf->opts = (conf->opts & ~conf->opts_remove) | conf->opts_add;
263 if ((base->opts & OPT_INCNOEXEC) && (new->opts & OPT_INCLUDES)) {
264 conf->opts = (conf->opts & ~OPT_INCNOEXEC) | OPT_INCLUDES;
268 /* otherwise we just copy, because an explicit opts setting
269 * overrides all earlier +/- modifiers
271 conf->opts = new->opts;
272 conf->opts_add = new->opts_add;
273 conf->opts_remove = new->opts_remove;
276 if (!(new->override & OR_UNSET)) {
277 conf->override = new->override;
279 if (new->ap_default_type) {
280 conf->ap_default_type = new->ap_default_type;
283 if (new->ap_auth_type) {
284 conf->ap_auth_type = new->ap_auth_type;
287 if (new->ap_auth_name) {
288 conf->ap_auth_name = new->ap_auth_name;
291 if (new->ap_requires) {
292 conf->ap_requires = new->ap_requires;
295 if (conf->response_code_strings == NULL) {
296 conf->response_code_strings = new->response_code_strings;
298 else if (new->response_code_strings != NULL) {
299 /* If we merge, the merge-result must have it's own array
301 conf->response_code_strings = apr_palloc(a,
302 sizeof(*conf->response_code_strings) * RESPONSE_CODES);
303 memcpy(conf->response_code_strings, base->response_code_strings,
304 sizeof(*conf->response_code_strings) * RESPONSE_CODES);
305 for (i = 0; i < RESPONSE_CODES; ++i) {
306 if (new->response_code_strings[i] != NULL) {
307 conf->response_code_strings[i]
308 = new->response_code_strings[i];
312 /* Otherwise we simply use the base->response_code_strings array
315 if (new->hostname_lookups != HOSTNAME_LOOKUP_UNSET) {
316 conf->hostname_lookups = new->hostname_lookups;
318 if ((new->do_rfc1413 & 2) == 0) {
319 conf->do_rfc1413 = new->do_rfc1413;
321 if ((new->content_md5 & 2) == 0) {
322 conf->content_md5 = new->content_md5;
324 if (new->accept_path_info != 3) {
325 conf->accept_path_info = new->accept_path_info;
327 if (new->use_canonical_name != USE_CANONICAL_NAME_UNSET) {
328 conf->use_canonical_name = new->use_canonical_name;
332 if (new->limit_cpu) {
333 conf->limit_cpu = new->limit_cpu;
336 #if defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined(RLIMIT_AS)
337 if (new->limit_mem) {
338 conf->limit_mem = new->limit_mem;
342 if (new->limit_nproc) {
343 conf->limit_nproc = new->limit_nproc;
347 if (new->limit_req_body) {
348 conf->limit_req_body = new->limit_req_body;
351 if (new->limit_xml_body != AP_LIMIT_UNSET)
352 conf->limit_xml_body = new->limit_xml_body;
354 conf->limit_xml_body = base->limit_xml_body;
356 if (!conf->sec_file) {
357 conf->sec_file = new->sec_file;
359 else if (new->sec_file) {
360 /* If we merge, the merge-result must have it's own array
362 conf->sec_file = apr_array_append(a, base->sec_file, new->sec_file);
364 /* Otherwise we simply use the base->sec_file array
367 if (new->satisfy != SATISFY_NOSPEC) {
368 conf->satisfy = new->satisfy;
371 if (new->server_signature != srv_sig_unset) {
372 conf->server_signature = new->server_signature;
375 if (new->add_default_charset != ADD_DEFAULT_CHARSET_UNSET) {
376 conf->add_default_charset = new->add_default_charset;
377 conf->add_default_charset_name = new->add_default_charset_name;
380 /* Overriding all negotiation
382 if (new->mime_type) {
383 conf->mime_type = new->mime_type;
387 conf->handler = new->handler;
390 if (new->output_filters) {
391 conf->output_filters = new->output_filters;
394 if (new->input_filters) {
395 conf->input_filters = new->input_filters;
398 if (conf->ct_output_filters && new->ct_output_filters) {
399 conf->ct_output_filters = apr_hash_merge(a,
400 new->ct_output_filters,
401 conf->ct_output_filters,
405 else if (new->ct_output_filters) {
406 conf->ct_output_filters = apr_hash_copy(a, new->ct_output_filters);
408 else if (conf->ct_output_filters) {
409 /* That memcpy above isn't enough. */
410 conf->ct_output_filters = apr_hash_copy(a, base->ct_output_filters);
414 * Now merge the setting of the FileETag directive.
416 if (new->etag_bits == ETAG_UNSET) {
418 (conf->etag_add & (~ new->etag_remove)) | new->etag_add;
420 (conf->opts_remove & (~ new->etag_add)) | new->etag_remove;
422 (conf->etag_bits & (~ conf->etag_remove)) | conf->etag_add;
425 conf->etag_bits = new->etag_bits;
426 conf->etag_add = new->etag_add;
427 conf->etag_remove = new->etag_remove;
429 if (conf->etag_bits != ETAG_NONE) {
430 conf->etag_bits &= (~ ETAG_NONE);
436 static void *create_core_server_config(apr_pool_t *a, server_rec *s)
438 core_server_config *conf;
439 int is_virtual = s->is_virtual;
441 conf = (core_server_config *)apr_pcalloc(a, sizeof(core_server_config));
443 conf->gprof_dir = NULL;
445 conf->access_name = is_virtual ? NULL : DEFAULT_ACCESS_FNAME;
446 conf->ap_document_root = is_virtual ? NULL : DOCUMENT_LOCATION;
447 conf->sec_dir = apr_array_make(a, 40, sizeof(ap_conf_vector_t *));
448 conf->sec_url = apr_array_make(a, 40, sizeof(ap_conf_vector_t *));
453 static void *merge_core_server_configs(apr_pool_t *p, void *basev, void *virtv)
455 core_server_config *base = (core_server_config *)basev;
456 core_server_config *virt = (core_server_config *)virtv;
457 core_server_config *conf;
459 conf = (core_server_config *)apr_palloc(p, sizeof(core_server_config));
460 memcpy(conf, virt, sizeof(core_server_config));
461 if (!conf->access_name) {
462 conf->access_name = base->access_name;
464 if (!conf->ap_document_root) {
465 conf->ap_document_root = base->ap_document_root;
467 conf->sec_dir = apr_array_append(p, base->sec_dir, virt->sec_dir);
468 conf->sec_url = apr_array_append(p, base->sec_url, virt->sec_url);
473 /* Add per-directory configuration entry (for <directory> section);
474 * these are part of the core server config.
477 AP_CORE_DECLARE(void) ap_add_per_dir_conf(server_rec *s, void *dir_config)
479 core_server_config *sconf = ap_get_module_config(s->module_config,
481 void **new_space = (void **)apr_array_push(sconf->sec_dir);
483 *new_space = dir_config;
486 AP_CORE_DECLARE(void) ap_add_per_url_conf(server_rec *s, void *url_config)
488 core_server_config *sconf = ap_get_module_config(s->module_config,
490 void **new_space = (void **)apr_array_push(sconf->sec_url);
492 *new_space = url_config;
495 AP_CORE_DECLARE(void) ap_add_file_conf(core_dir_config *conf, void *url_config)
497 void **new_space = (void **)apr_array_push(conf->sec_file);
499 *new_space = url_config;
502 /* We need to do a stable sort, qsort isn't stable. So to make it stable
503 * we'll be maintaining the original index into the list, and using it
504 * as the minor key during sorting. The major key is the number of
505 * components (where the root component is zero).
507 struct reorder_sort_rec {
508 ap_conf_vector_t *elt;
512 static int reorder_sorter(const void *va, const void *vb)
514 const struct reorder_sort_rec *a = va;
515 const struct reorder_sort_rec *b = vb;
516 core_dir_config *core_a;
517 core_dir_config *core_b;
519 core_a = ap_get_module_config(a->elt, &core_module);
520 core_b = ap_get_module_config(b->elt, &core_module);
522 /* a regex always sorts after a non-regex
524 if (!core_a->r && core_b->r) {
527 else if (core_a->r && !core_b->r) {
530 /* we always sort next by the number of components
532 if (core_a->d_components < core_b->d_components) {
535 else if (core_a->d_components > core_b->d_components) {
538 /* They have the same number of components, we now have to compare
539 * the minor key to maintain the original order (from the config.)
541 return a->orig_index - b->orig_index;
544 void ap_core_reorder_directories(apr_pool_t *p, server_rec *s)
546 core_server_config *sconf;
547 apr_array_header_t *sec_dir;
548 struct reorder_sort_rec *sortbin;
550 ap_conf_vector_t **elts;
554 sconf = ap_get_module_config(s->module_config, &core_module);
555 sec_dir = sconf->sec_dir;
556 nelts = sec_dir->nelts;
557 elts = (ap_conf_vector_t **)sec_dir->elts;
560 /* simple case of already being sorted... */
561 /* We're not checking this condition to be fast... we're checking
562 * it to avoid trying to palloc zero bytes, which can trigger some
563 * memory debuggers to barf
568 /* we have to allocate tmp space to do a stable sort */
569 apr_pool_create(&tmp, p);
570 sortbin = apr_palloc(tmp, sec_dir->nelts * sizeof(*sortbin));
571 for (i = 0; i < nelts; ++i) {
572 sortbin[i].orig_index = i;
573 sortbin[i].elt = elts[i];
576 qsort(sortbin, nelts, sizeof(*sortbin), reorder_sorter);
578 /* and now copy back to the original array */
579 for (i = 0; i < nelts; ++i) {
580 elts[i] = sortbin[i].elt;
583 apr_pool_destroy(tmp);
586 /*****************************************************************
588 * There are some elements of the core config structures in which
589 * other modules have a legitimate interest (this is ugly, but necessary
590 * to preserve NCSA back-compatibility). So, we have a bunch of accessors
594 AP_DECLARE(int) ap_allow_options(request_rec *r)
596 core_dir_config *conf =
597 (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module);
602 AP_DECLARE(int) ap_allow_overrides(request_rec *r)
604 core_dir_config *conf;
605 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
608 return conf->override;
611 AP_DECLARE(const char *) ap_auth_type(request_rec *r)
613 core_dir_config *conf;
615 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,
626 return conf->ap_auth_name;
629 AP_DECLARE(const char *) ap_default_type(request_rec *r)
631 core_dir_config *conf;
633 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
635 return conf->ap_default_type
636 ? conf->ap_default_type
637 : DEFAULT_CONTENT_TYPE;
640 AP_DECLARE(const char *) ap_document_root(request_rec *r) /* Don't use this! */
642 core_server_config *conf;
644 conf = (core_server_config *)ap_get_module_config(r->server->module_config,
646 return conf->ap_document_root;
649 AP_DECLARE(const apr_array_header_t *) ap_requires(request_rec *r)
651 core_dir_config *conf;
653 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
655 return conf->ap_requires;
658 AP_DECLARE(int) ap_satisfies(request_rec *r)
660 core_dir_config *conf;
662 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
665 return conf->satisfy;
668 /* Should probably just get rid of this... the only code that cares is
669 * part of the core anyway (and in fact, it isn't publicised to other
673 char *ap_response_code_string(request_rec *r, int error_index)
675 core_dir_config *conf;
677 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
680 if (conf->response_code_strings == NULL) {
683 return conf->response_code_strings[error_index];
687 /* Code from Harald Hanche-Olsen <hanche@imf.unit.no> */
688 static APR_INLINE void do_double_reverse (conn_rec *conn)
693 if (conn->double_reverse) {
697 if (conn->remote_host == NULL || conn->remote_host[0] == '\0') {
698 /* single reverse failed, so don't bother */
699 conn->double_reverse = -1;
702 rv = apr_sockaddr_info_get(&sa, conn->remote_host, APR_UNSPEC, 0, 0, conn->pool);
703 if (rv == APR_SUCCESS) {
705 if (apr_sockaddr_equal(sa, conn->remote_addr)) {
706 conn->double_reverse = 1;
712 conn->double_reverse = -1;
715 AP_DECLARE(const char *) ap_get_remote_host(conn_rec *conn, void *dir_config,
716 int type, int *str_is_ip)
718 int hostname_lookups;
720 if (str_is_ip) { /* if caller wants to know */
724 /* If we haven't checked the host name, and we want to */
727 ((core_dir_config *)ap_get_module_config(dir_config, &core_module))
729 if (hostname_lookups == HOSTNAME_LOOKUP_UNSET) {
730 hostname_lookups = HOSTNAME_LOOKUP_OFF;
735 hostname_lookups = HOSTNAME_LOOKUP_OFF;
738 if (type != REMOTE_NOLOOKUP
739 && conn->remote_host == NULL
740 && (type == REMOTE_DOUBLE_REV
741 || hostname_lookups != HOSTNAME_LOOKUP_OFF)) {
743 if (apr_getnameinfo(&conn->remote_host, conn->remote_addr, 0) == APR_SUCCESS) {
744 ap_str_tolower(conn->remote_host);
746 if (hostname_lookups == HOSTNAME_LOOKUP_DOUBLE) {
747 do_double_reverse(conn);
748 if (conn->double_reverse != 1) {
749 conn->remote_host = NULL;
753 /* if failed, set it to the NULL string to indicate error */
754 if (conn->remote_host == NULL) {
755 conn->remote_host = "";
758 if (type == REMOTE_DOUBLE_REV) {
759 do_double_reverse(conn);
760 if (conn->double_reverse == -1) {
766 * Return the desired information; either the remote DNS name, if found,
767 * or either NULL (if the hostname was requested) or the IP address
768 * (if any identifier was requested).
770 if (conn->remote_host != NULL && conn->remote_host[0] != '\0') {
771 return conn->remote_host;
774 if (type == REMOTE_HOST || type == REMOTE_DOUBLE_REV) {
778 if (str_is_ip) { /* if caller wants to know */
781 return conn->remote_ip;
786 AP_DECLARE(const char *) ap_get_remote_logname(request_rec *r)
788 core_dir_config *dir_conf;
790 if (r->connection->remote_logname != NULL) {
791 return r->connection->remote_logname;
794 /* If we haven't checked the identity, and we want to */
795 dir_conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
798 if (dir_conf->do_rfc1413 & 1) {
799 return ap_rfc1413(r->connection, r->server);
806 /* There are two options regarding what the "name" of a server is. The
807 * "canonical" name as defined by ServerName and Port, or the "client's
808 * name" as supplied by a possible Host: header or full URI. We never
809 * trust the port passed in the client's headers, we always use the
810 * port of the actual socket.
812 * The DNS option to UseCanonicalName causes this routine to do a
813 * reverse lookup on the local IP address of the connection and use
814 * that for the ServerName. This makes its value more reliable while
815 * at the same time allowing Demon's magic virtual hosting to work.
816 * The assumption is that DNS lookups are sufficiently quick...
819 AP_DECLARE(const char *) ap_get_server_name(request_rec *r)
821 conn_rec *conn = r->connection;
824 d = (core_dir_config *)ap_get_module_config(r->per_dir_config,
827 if (d->use_canonical_name == USE_CANONICAL_NAME_OFF) {
828 return r->hostname ? r->hostname : r->server->server_hostname;
830 if (d->use_canonical_name == USE_CANONICAL_NAME_DNS) {
831 if (conn->local_host == NULL) {
833 if (apr_getnameinfo(&conn->local_host, conn->local_addr, 0) != APR_SUCCESS)
834 conn->local_host = apr_pstrdup(conn->pool, r->server->server_hostname);
836 ap_str_tolower(conn->local_host);
839 return conn->local_host;
842 return r->server->server_hostname;
845 AP_DECLARE(apr_port_t) ap_get_server_port(const request_rec *r)
849 (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module);
851 if (d->use_canonical_name == USE_CANONICAL_NAME_OFF
852 || d->use_canonical_name == USE_CANONICAL_NAME_DNS) {
854 /* With UseCanonicalName off Apache will form self-referential
855 * URLs using the hostname and port supplied by the client if
856 * any are supplied (otherwise it will use the canonical name).
858 port = r->parsed_uri.port ? r->parsed_uri.port :
859 r->server->port ? r->server->port :
862 else { /* d->use_canonical_name == USE_CANONICAL_NAME_ON */
864 /* With UseCanonicalName on (and in all versions prior to 1.3)
865 * Apache will use the hostname and port specified in the
866 * ServerName directive to construct a canonical name for the
867 * server. (If no port was specified in the ServerName
868 * directive, Apache uses the port supplied by the client if
869 * any is supplied, and finally the default port for the protocol
872 port = r->server->port ? r->server->port :
873 r->connection->local_addr->port ? r->connection->local_addr->port :
881 AP_DECLARE(char *) ap_construct_url(apr_pool_t *p, const char *uri,
884 unsigned port = ap_get_server_port(r);
885 const char *host = ap_get_server_name(r);
887 if (ap_is_default_port(port, r)) {
888 return apr_pstrcat(p, ap_http_method(r), "://", host, uri, NULL);
890 return apr_psprintf(p, "%s://%s:%u%s", ap_http_method(r), host, port, uri);
893 AP_DECLARE(apr_off_t) ap_get_limit_req_body(const request_rec *r)
896 (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module);
898 return d->limit_req_body;
902 /*****************************************************************
904 * Commands... this module handles almost all of the NCSA httpd.conf
905 * commands, but most of the old srm.conf is in the the modules.
909 /* returns a parent if it matches the given directive */
910 static const ap_directive_t * find_parent(const ap_directive_t *dirp,
913 while (dirp->parent != NULL) {
915 /* ### it would be nice to have atom-ized directives */
916 if (strcasecmp(dirp->directive, what) == 0)
922 AP_DECLARE(const char *) ap_check_cmd_context(cmd_parms *cmd,
925 const char *gt = (cmd->cmd->name[0] == '<'
926 && cmd->cmd->name[strlen(cmd->cmd->name)-1] != '>')
928 const ap_directive_t *found;
930 if ((forbidden & NOT_IN_VIRTUALHOST) && cmd->server->is_virtual) {
931 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
932 " cannot occur within <VirtualHost> section", NULL);
935 if ((forbidden & NOT_IN_LIMIT) && cmd->limited != -1) {
936 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
937 " cannot occur within <Limit> section", NULL);
940 if ((forbidden & NOT_IN_DIR_LOC_FILE) == NOT_IN_DIR_LOC_FILE
941 && cmd->path != NULL) {
942 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
943 " cannot occur within <Directory/Location/Files> "
947 if (((forbidden & NOT_IN_DIRECTORY)
948 && ((found = find_parent(cmd->directive, "<Directory"))
949 || (found = find_parent(cmd->directive, "<DirectoryMatch"))))
950 || ((forbidden & NOT_IN_LOCATION)
951 && ((found = find_parent(cmd->directive, "<Location"))
952 || (found = find_parent(cmd->directive, "<LocationMatch"))))
953 || ((forbidden & NOT_IN_FILES)
954 && ((found = find_parent(cmd->directive, "<Files"))
955 || (found = find_parent(cmd->directive, "<FilesMatch"))))) {
956 return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
957 " cannot occur within ", found->directive,
964 static const char *set_access_name(cmd_parms *cmd, void *dummy,
967 void *sconf = cmd->server->module_config;
968 core_server_config *conf = ap_get_module_config(sconf, &core_module);
970 const char *err = ap_check_cmd_context(cmd,
971 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
976 conf->access_name = apr_pstrdup(cmd->pool, arg);
981 static const char *set_gprof_dir(cmd_parms *cmd, void *dummy, const char *arg)
983 void *sconf = cmd->server->module_config;
984 core_server_config *conf = ap_get_module_config(sconf, &core_module);
986 const char *err = ap_check_cmd_context(cmd,
987 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
992 conf->gprof_dir = apr_pstrdup(cmd->pool, arg);
997 static const char *set_add_default_charset(cmd_parms *cmd,
998 void *d_, const char *arg)
1000 core_dir_config *d=d_;
1002 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1006 if (!strcasecmp(arg, "Off")) {
1007 d->add_default_charset = ADD_DEFAULT_CHARSET_OFF;
1009 else if (!strcasecmp(arg, "On")) {
1010 d->add_default_charset = ADD_DEFAULT_CHARSET_ON;
1011 d->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME;
1014 d->add_default_charset = ADD_DEFAULT_CHARSET_ON;
1015 d->add_default_charset_name = arg;
1020 static const char *set_document_root(cmd_parms *cmd, void *dummy,
1023 void *sconf = cmd->server->module_config;
1024 core_server_config *conf = ap_get_module_config(sconf, &core_module);
1026 const char *err = ap_check_cmd_context(cmd,
1027 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1032 /* TODO: ap_configtestonly && ap_docrootcheck && */
1033 /* XXX Shouldn't this be relative to ServerRoot ??? */
1034 if (apr_filepath_merge((char**)&conf->ap_document_root, NULL, arg,
1035 APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS
1036 || !ap_is_directory(cmd->pool, arg)) {
1037 if (cmd->server->is_virtual) {
1038 ap_log_perror(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, cmd->pool,
1039 "Warning: DocumentRoot [%s] does not exist",
1041 conf->ap_document_root = arg;
1044 return "DocumentRoot must be a directory";
1050 AP_DECLARE(void) ap_custom_response(request_rec *r, int status, const char *string)
1052 core_dir_config *conf =
1053 ap_get_module_config(r->per_dir_config, &core_module);
1056 if(conf->response_code_strings == NULL) {
1057 conf->response_code_strings =
1058 apr_pcalloc(r->pool,
1059 sizeof(*conf->response_code_strings) *
1063 idx = ap_index_of_response(status);
1065 conf->response_code_strings[idx] =
1066 ((ap_is_url(string) || (*string == '/')) && (*string != '"')) ?
1067 apr_pstrdup(r->pool, string) : apr_pstrcat(r->pool, "\"", string, NULL);
1070 static const char *set_error_document(cmd_parms *cmd, void *conf_,
1071 const char *errno_str, const char *msg)
1073 core_dir_config *conf=conf_;
1074 int error_number, index_number, idx500;
1075 enum { MSG, LOCAL_PATH, REMOTE_PATH } what = MSG;
1077 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1082 /* 1st parameter should be a 3 digit number, which we recognize;
1083 * convert it into an array index
1085 error_number = atoi(errno_str);
1086 idx500 = ap_index_of_response(HTTP_INTERNAL_SERVER_ERROR);
1088 if (error_number == HTTP_INTERNAL_SERVER_ERROR) {
1089 index_number = idx500;
1091 else if ((index_number = ap_index_of_response(error_number)) == idx500) {
1092 return apr_pstrcat(cmd->pool, "Unsupported HTTP response code ",
1096 /* Heuristic to determine second argument. */
1097 if (ap_strchr_c(msg,' '))
1099 else if (msg[0] == '/')
1101 else if (ap_is_url(msg))
1106 /* The entry should be ignored if it is a full URL for a 401 error */
1108 if (error_number == 401 && what == REMOTE_PATH) {
1109 ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_NOTICE, 0, cmd->server,
1110 "cannot use a full URL in a 401 ErrorDocument "
1111 "directive --- ignoring!");
1113 else { /* Store it... */
1114 if (conf->response_code_strings == NULL) {
1115 conf->response_code_strings =
1116 apr_pcalloc(cmd->pool,
1117 sizeof(*conf->response_code_strings) * RESPONSE_CODES);
1119 /* hack. Prefix a " if it is a msg; as that is what
1120 * http_protocol.c relies on to distinguish between
1121 * a msg and a (local) path.
1123 conf->response_code_strings[index_number] = (what == MSG) ?
1124 apr_pstrcat(cmd->pool, "\"",msg,NULL) :
1125 apr_pstrdup(cmd->pool, msg);
1131 static const char *set_override(cmd_parms *cmd, void *d_, const char *l)
1133 core_dir_config *d=d_;
1136 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1141 d->override = OR_NONE;
1143 w = ap_getword_conf(cmd->pool, &l);
1144 if (!strcasecmp(w, "Limit")) {
1145 d->override |= OR_LIMIT;
1147 else if (!strcasecmp(w, "Options")) {
1148 d->override |= OR_OPTIONS;
1150 else if (!strcasecmp(w, "FileInfo")) {
1151 d->override |= OR_FILEINFO;
1153 else if (!strcasecmp(w, "AuthConfig")) {
1154 d->override |= OR_AUTHCFG;
1156 else if (!strcasecmp(w, "Indexes")) {
1157 d->override |= OR_INDEXES;
1159 else if (!strcasecmp(w, "None")) {
1160 d->override = OR_NONE;
1162 else if (!strcasecmp(w, "All")) {
1163 d->override = OR_ALL;
1166 return apr_pstrcat(cmd->pool, "Illegal override option ", w, NULL);
1168 d->override &= ~OR_UNSET;
1174 static const char *set_options(cmd_parms *cmd, void *d_, const char *l)
1176 core_dir_config *d=d_;
1177 allow_options_t opt;
1182 char *w = ap_getword_conf(cmd->pool, &l);
1185 if (*w == '+' || *w == '-') {
1193 if (!strcasecmp(w, "Indexes")) {
1196 else if (!strcasecmp(w, "Includes")) {
1199 else if (!strcasecmp(w, "IncludesNOEXEC")) {
1200 opt = (OPT_INCLUDES | OPT_INCNOEXEC);
1202 else if (!strcasecmp(w, "FollowSymLinks")) {
1203 opt = OPT_SYM_LINKS;
1205 else if (!strcasecmp(w, "SymLinksIfOwnerMatch")) {
1206 opt = OPT_SYM_OWNER;
1208 else if (!strcasecmp(w, "execCGI")) {
1211 else if (!strcasecmp(w, "MultiViews")) {
1214 else if (!strcasecmp(w, "RunScripts")) { /* AI backcompat. Yuck */
1215 opt = OPT_MULTI|OPT_EXECCGI;
1217 else if (!strcasecmp(w, "None")) {
1220 else if (!strcasecmp(w, "All")) {
1224 return apr_pstrcat(cmd->pool, "Illegal option ", w, NULL);
1227 /* we ensure the invariant (d->opts_add & d->opts_remove) == 0 */
1228 if (action == '-') {
1229 d->opts_remove |= opt;
1230 d->opts_add &= ~opt;
1233 else if (action == '+') {
1235 d->opts_remove &= ~opt;
1247 * Note what data should be used when forming file ETag values.
1248 * It would be nicer to do this as an ITERATE, but then we couldn't
1249 * remember the +/- state properly.
1251 static const char *set_etag_bits(cmd_parms *cmd, void *mconfig,
1254 core_dir_config *cfg;
1255 etag_components_t bit;
1263 cfg = (core_dir_config *) mconfig;
1268 while (args[0] != '\0') {
1272 token = ap_getword_conf(cmd->pool, &args);
1273 if ((*token == '+') || (*token == '-')) {
1279 * The occurrence of an absolute setting wipes
1280 * out any previous relative ones. The first such
1281 * occurrence forgets any inherited ones, too.
1284 cfg->etag_bits = ETAG_UNSET;
1285 cfg->etag_add = ETAG_UNSET;
1286 cfg->etag_remove = ETAG_UNSET;
1291 if (strcasecmp(token, "None") == 0) {
1292 if (action != '*') {
1296 cfg->etag_bits = bit = ETAG_NONE;
1300 else if (strcasecmp(token, "All") == 0) {
1301 if (action != '*') {
1306 cfg->etag_bits = bit = ETAG_ALL;
1309 else if (strcasecmp(token, "Size") == 0) {
1312 else if ((strcasecmp(token, "LMTime") == 0)
1313 || (strcasecmp(token, "MTime") == 0)
1314 || (strcasecmp(token, "LastModified") == 0)) {
1317 else if (strcasecmp(token, "INode") == 0) {
1321 return ap_pstrcat(cmd->pool, "Unknown keyword '",
1322 token, "' for ", cmd->cmd->name,
1323 " directive", NULL);
1327 return ap_pstrcat(cmd->pool, cmd->cmd->name, " keyword '",
1328 token, "' cannot be used with '+' or '-'",
1332 if (action == '+') {
1334 * Make sure it's in the 'add' list and absent from the
1337 cfg->etag_add |= bit;
1338 cfg->etag_remove &= (~ bit);
1340 else if (action == '-') {
1341 cfg->etag_remove |= bit;
1342 cfg->etag_add &= (~ bit);
1346 * Non-relative values wipe out any + or - values
1347 * accumulated so far.
1349 cfg->etag_bits |= bit;
1350 cfg->etag_add = ETAG_UNSET;
1351 cfg->etag_remove = ETAG_UNSET;
1357 * Any setting at all will clear the 'None' and 'Unset' bits.
1360 if (cfg->etag_add != ETAG_UNSET) {
1361 cfg->etag_add &= (~ ETAG_UNSET);
1363 if (cfg->etag_remove != ETAG_UNSET) {
1364 cfg->etag_remove &= (~ ETAG_UNSET);
1367 cfg->etag_bits &= (~ ETAG_UNSET);
1368 if ((cfg->etag_bits & ETAG_NONE) != ETAG_NONE) {
1369 cfg->etag_bits &= (~ ETAG_NONE);
1375 static const char *satisfy(cmd_parms *cmd, void *c_, const char *arg)
1377 core_dir_config *c=c_;
1379 if (!strcasecmp(arg, "all")) {
1380 c->satisfy = SATISFY_ALL;
1382 else if (!strcasecmp(arg, "any")) {
1383 c->satisfy = SATISFY_ANY;
1386 return "Satisfy either 'any' or 'all'.";
1391 static const char *require(cmd_parms *cmd, void *c_, const char *arg)
1394 core_dir_config *c=c_;
1396 if (!c->ap_requires) {
1397 c->ap_requires = apr_array_make(cmd->pool, 2, sizeof(require_line));
1399 r = (require_line *)apr_array_push(c->ap_requires);
1400 r->requirement = apr_pstrdup(cmd->pool, arg);
1401 r->method_mask = cmd->limited;
1405 AP_CORE_DECLARE_NONSTD(const char *) ap_limit_section(cmd_parms *cmd, void *dummy,
1407 const char *limited_methods = ap_getword(cmd->pool, &arg, '>');
1408 void *tog = cmd->cmd->cmd_data;
1409 apr_int64_t limited = 0;
1412 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1417 while (limited_methods[0]) {
1418 char *method = ap_getword_conf(cmd->pool, &limited_methods);
1421 /* check for builtin or module registered method number */
1422 methnum = ap_method_number_of(method);
1424 if (methnum == M_TRACE && !tog) {
1425 return "TRACE cannot be controlled by <Limit>";
1427 else if (methnum == M_INVALID) {
1428 /* method has not been registered yet, but resorce restriction
1429 * is always checked before method handling, so register it.
1431 methnum = ap_method_register(cmd->pool, method);
1433 limited |= (AP_METHOD_BIT << methnum);
1436 /* Killing two features with one function,
1437 * if (tog == NULL) <Limit>, else <LimitExcept>
1439 cmd->limited = tog ? ~limited : limited;
1441 errmsg = ap_walk_config(cmd->directive->first_child, cmd, cmd->context);
1448 /* XXX: Bogus - need to do this differently (at least OS2/Netware suffer
1449 * the same problem!!!
1450 * We use this in <DirectoryMatch> and <FilesMatch>, to ensure that
1451 * people don't get bitten by wrong-cased regex matches
1455 #define USE_ICASE REG_ICASE
1461 * Report a missing-'>' syntax error.
1463 static char *unclosed_directive(cmd_parms *cmd)
1465 return apr_pstrcat(cmd->pool, cmd->cmd->name,
1466 "> directive missing closing '>'", NULL);
1469 static const char *dirsection(cmd_parms *cmd, void *mconfig, const char *arg)
1472 const char *endp = ap_strrchr_c(arg, '>');
1473 int old_overrides = cmd->override;
1474 char *old_path = cmd->path;
1475 core_dir_config *conf;
1476 ap_conf_vector_t *new_dir_conf = ap_create_per_dir_config(cmd->pool);
1478 const command_rec *thiscmd = cmd->cmd;
1480 const char *err = ap_check_cmd_context(cmd,
1481 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1487 return unclosed_directive(cmd);
1490 arg=apr_pstrndup(cmd->pool, arg, endp-arg);
1493 if (thiscmd->cmd_data)
1494 return "<DirectoryMatch > block must specify a path";
1496 return "<Directory > block must specify a path";
1499 cmd->path = ap_getword_conf(cmd->pool, &arg);
1500 cmd->override = OR_ALL|ACCESS_CONF;
1502 if (!strcmp(cmd->path, "~")) {
1503 cmd->path = ap_getword_conf(cmd->pool, &arg);
1505 return "<Directory ~ > block must specify a path";
1507 else if (thiscmd->cmd_data) { /* <DirectoryMatch> */
1508 r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE);
1510 else if (!strcmp(cmd->path, "/") == 0)
1514 * Ensure that the pathname is canonical, and append the trailing /
1516 if (apr_filepath_merge(&newpath, NULL, cmd->path,
1517 APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS) {
1518 return apr_pstrcat(cmd->pool, "<Directory \"", cmd->path,
1519 "\"> path is invalid.", NULL);
1521 cmd->path = newpath;
1522 if (cmd->path[strlen(cmd->path) - 1] != '/')
1523 cmd->path = apr_pstrcat(cmd->pool, cmd->path, "/", NULL);
1526 /* initialize our config and fetch it */
1527 conf = ap_set_config_vectors(cmd->server, new_dir_conf, cmd->path,
1528 &core_module, cmd->pool);
1530 errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_dir_conf);
1535 conf->d = cmd->path;
1536 conf->d_is_fnmatch = (apr_is_fnmatch(conf->d) != 0);
1538 /* Make this explicit - the "/" root has 0 elements, that is, we
1539 * will always merge it, and it will always sort and merge first.
1540 * All others are sorted and tested by the number of slashes.
1542 if (strcmp(conf->d, "/") == 0)
1543 conf->d_components = 0;
1545 conf->d_components = ap_count_dirs(conf->d);
1547 ap_add_per_dir_conf(cmd->server, new_dir_conf);
1550 return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
1551 "> arguments not (yet) supported.", NULL);
1554 cmd->path = old_path;
1555 cmd->override = old_overrides;
1560 static const char *urlsection(cmd_parms *cmd, void *mconfig, const char *arg)
1563 const char *endp = ap_strrchr_c(arg, '>');
1564 int old_overrides = cmd->override;
1565 char *old_path = cmd->path;
1566 core_dir_config *conf;
1568 const command_rec *thiscmd = cmd->cmd;
1569 ap_conf_vector_t *new_url_conf = ap_create_per_dir_config(cmd->pool);
1570 const char *err = ap_check_cmd_context(cmd,
1571 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1577 return unclosed_directive(cmd);
1580 arg=apr_pstrndup(cmd->pool, arg, endp-arg);
1582 cmd->path = ap_getword_conf(cmd->pool, &arg);
1583 cmd->override = OR_ALL|ACCESS_CONF;
1585 if (thiscmd->cmd_data) { /* <LocationMatch> */
1586 r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED);
1588 else if (!strcmp(cmd->path, "~")) {
1589 cmd->path = ap_getword_conf(cmd->pool, &arg);
1590 r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED);
1593 /* initialize our config and fetch it */
1594 conf = ap_set_config_vectors(cmd->server, new_url_conf, cmd->path,
1595 &core_module, cmd->pool);
1597 errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_url_conf);
1601 conf->d = apr_pstrdup(cmd->pool, cmd->path); /* No mangling, please */
1602 conf->d_is_fnmatch = apr_is_fnmatch(conf->d) != 0;
1605 ap_add_per_url_conf(cmd->server, new_url_conf);
1608 return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
1609 "> arguments not (yet) supported.", NULL);
1612 cmd->path = old_path;
1613 cmd->override = old_overrides;
1618 static const char *filesection(cmd_parms *cmd, void *mconfig, const char *arg)
1621 const char *endp = ap_strrchr_c(arg, '>');
1622 int old_overrides = cmd->override;
1623 char *old_path = cmd->path;
1624 core_dir_config *conf;
1626 const command_rec *thiscmd = cmd->cmd;
1627 core_dir_config *c=mconfig;
1628 ap_conf_vector_t *new_file_conf = ap_create_per_dir_config(cmd->pool);
1629 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT|NOT_IN_LOCATION);
1636 return unclosed_directive(cmd);
1639 arg=apr_pstrndup(cmd->pool, arg, endp-arg);
1641 cmd->path = ap_getword_conf(cmd->pool, &arg);
1642 /* Only if not an .htaccess file */
1644 cmd->override = OR_ALL|ACCESS_CONF;
1647 if (thiscmd->cmd_data) { /* <FilesMatch> */
1648 r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE);
1650 else if (!strcmp(cmd->path, "~")) {
1651 cmd->path = ap_getword_conf(cmd->pool, &arg);
1652 r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE);
1656 /* Ensure that the pathname is canonical, but we
1657 * can't test the case/aliases without a fixed path */
1658 if (apr_filepath_merge(&newpath, "", cmd->path,
1659 0, cmd->pool) != APR_SUCCESS)
1660 return apr_pstrcat(cmd->pool, "<Files \"", cmd->path,
1661 "\"> is invalid.", NULL);
1662 cmd->path = newpath;
1665 /* initialize our config and fetch it */
1666 conf = ap_set_config_vectors(cmd->server, new_file_conf, cmd->path,
1667 &core_module, cmd->pool);
1669 errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_file_conf);
1673 conf->d = cmd->path;
1674 conf->d_is_fnmatch = apr_is_fnmatch(conf->d) != 0;
1677 ap_add_file_conf(c, new_file_conf);
1680 return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
1681 "> arguments not (yet) supported.", NULL);
1684 cmd->path = old_path;
1685 cmd->override = old_overrides;
1690 static const char *start_ifmod(cmd_parms *cmd, void *mconfig, const char *arg)
1692 const char *endp = ap_strrchr_c(arg, '>');
1693 int not = (arg[0] == '!');
1697 return unclosed_directive(cmd);
1700 arg=apr_pstrndup(cmd->pool, arg, endp-arg);
1706 found = ap_find_linked_module(arg);
1708 if ((!not && found) || (not && !found)) {
1709 ap_directive_t *parent = NULL;
1710 ap_directive_t *current = NULL;
1713 retval = ap_build_cont_config(cmd->pool, cmd->temp_pool, cmd,
1714 ¤t, &parent, "<IfModule");
1715 *(ap_directive_t **)mconfig = current;
1719 *(ap_directive_t **)mconfig = NULL;
1720 return ap_soak_end_container(cmd, "<IfModule");
1724 AP_DECLARE(int) ap_exists_config_define(const char *name)
1729 defines = (char **)ap_server_config_defines->elts;
1730 for (i = 0; i < ap_server_config_defines->nelts; i++) {
1731 if (strcmp(defines[i], name) == 0) {
1738 static const char *start_ifdefine(cmd_parms *cmd, void *dummy, const char *arg)
1744 endp = ap_strrchr_c(arg, '>');
1746 return unclosed_directive(cmd);
1749 arg=apr_pstrndup(cmd->pool, arg, endp-arg);
1751 if (arg[0] == '!') {
1756 defined = ap_exists_config_define(arg);
1757 if ((!not && defined) || (not && !defined)) {
1758 ap_directive_t *parent = NULL;
1759 ap_directive_t *current = NULL;
1762 retval = ap_build_cont_config(cmd->pool, cmd->temp_pool, cmd,
1763 ¤t, &parent, "<IfDefine");
1764 *(ap_directive_t **)dummy = current;
1768 *(ap_directive_t **)dummy = NULL;
1769 return ap_soak_end_container(cmd, "<IfDefine");
1773 /* httpd.conf commands... beginning with the <VirtualHost> business */
1775 static const char *virtualhost_section(cmd_parms *cmd, void *dummy,
1778 server_rec *main_server = cmd->server, *s;
1780 const char *endp = ap_strrchr_c(arg, '>');
1781 apr_pool_t *p = cmd->pool;
1783 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
1789 return unclosed_directive(cmd);
1792 arg=apr_pstrndup(cmd->pool, arg, endp-arg);
1794 /* FIXME: There's another feature waiting to happen here -- since you
1795 can now put multiple addresses/names on a single <VirtualHost>
1796 you might want to use it to group common definitions and then
1797 define other "subhosts" with their individual differences. But
1798 personally I'd rather just do it with a macro preprocessor. -djg */
1799 if (main_server->is_virtual) {
1800 return "<VirtualHost> doesn't nest!";
1803 errmsg = ap_init_virtual_host(p, arg, main_server, &s);
1808 s->next = main_server->next;
1809 main_server->next = s;
1811 s->defn_name = cmd->directive->filename;
1812 s->defn_line_number = cmd->directive->line_num;
1816 errmsg = ap_walk_config(cmd->directive->first_child, cmd,
1817 s->lookup_defaults);
1819 cmd->server = main_server;
1824 static const char *set_server_alias(cmd_parms *cmd, void *dummy,
1827 if (!cmd->server->names) {
1828 return "ServerAlias only used in <VirtualHost>";
1831 char **item, *name = ap_getword_conf(cmd->pool, &arg);
1832 if (ap_is_matchexp(name)) {
1833 item = (char **)apr_array_push(cmd->server->wild_names);
1836 item = (char **)apr_array_push(cmd->server->names);
1843 static const char *set_server_string_slot(cmd_parms *cmd, void *dummy,
1846 /* This one's pretty generic... */
1848 int offset = (int)(long)cmd->info;
1849 char *struct_ptr = (char *)cmd->server;
1851 const char *err = ap_check_cmd_context(cmd,
1852 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1857 *(const char **)(struct_ptr + offset) = arg;
1861 static const char *server_hostname_port(cmd_parms *cmd, void *dummy, const char *arg)
1863 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1864 const char *portstr;
1870 portstr = ap_strchr_c(arg, ':');
1872 cmd->server->server_hostname = apr_pstrndup(cmd->pool, arg,
1875 port = atoi(portstr);
1876 if (port <= 0 || port >= 65536) { /* 65536 == 1<<16 */
1877 return apr_pstrcat(cmd->temp_pool, "The port number \"", arg,
1878 "\" is outside the appropriate range "
1879 "(i.e., 1..65535).", NULL);
1883 cmd->server->server_hostname = apr_pstrdup(cmd->pool, arg);
1886 cmd->server->port = port;
1890 static const char *set_signature_flag(cmd_parms *cmd, void *d_,
1893 core_dir_config *d=d_;
1895 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1900 if (strcasecmp(arg, "On") == 0) {
1901 d->server_signature = srv_sig_on;
1903 else if (strcasecmp(arg, "Off") == 0) {
1904 d->server_signature = srv_sig_off;
1906 else if (strcasecmp(arg, "EMail") == 0) {
1907 d->server_signature = srv_sig_withmail;
1910 return "ServerSignature: use one of: off | on | email";
1915 static const char *set_server_root(cmd_parms *cmd, void *dummy,
1918 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
1924 if ((apr_filepath_merge((char**)&ap_server_root, NULL, arg,
1925 APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS)
1926 || !ap_is_directory(cmd->pool, ap_server_root)) {
1927 return "ServerRoot must be a valid directory";
1932 static const char *set_timeout(cmd_parms *cmd, void *dummy, const char *arg)
1934 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1939 cmd->server->timeout = atoi(arg);
1943 static const char *set_idcheck(cmd_parms *cmd, void *d_, int arg)
1945 core_dir_config *d=d_;
1946 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1951 d->do_rfc1413 = arg != 0;
1955 static const char *set_hostname_lookups(cmd_parms *cmd, void *d_,
1958 core_dir_config *d=d_;
1960 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
1965 if (!strcasecmp(arg, "on")) {
1966 d->hostname_lookups = HOSTNAME_LOOKUP_ON;
1968 else if (!strcasecmp(arg, "off")) {
1969 d->hostname_lookups = HOSTNAME_LOOKUP_OFF;
1971 else if (!strcasecmp(arg, "double")) {
1972 d->hostname_lookups = HOSTNAME_LOOKUP_DOUBLE;
1975 return "parameter must be 'on', 'off', or 'double'";
1980 static const char *set_serverpath(cmd_parms *cmd, void *dummy,
1983 const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
1988 cmd->server->path = arg;
1989 cmd->server->pathlen = strlen(arg);
1993 static const char *set_content_md5(cmd_parms *cmd, void *d_, int arg)
1995 core_dir_config *d=d_;
1996 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2001 d->content_md5 = arg != 0;
2005 static const char *set_accept_path_info(cmd_parms *cmd, void *d_, const char *arg)
2007 core_dir_config *d=d_;
2009 if (strcasecmp(arg, "on") == 0) {
2010 d->accept_path_info = AP_REQ_ACCEPT_PATH_INFO;
2012 else if (strcasecmp(arg, "off") == 0) {
2013 d->accept_path_info = AP_REQ_REJECT_PATH_INFO;
2015 else if (strcasecmp(arg, "default") == 0) {
2016 d->accept_path_info = AP_REQ_DEFAULT_PATH_INFO;
2019 return "AcceptPathInfo must be set to on, off or default";
2025 static const char *set_use_canonical_name(cmd_parms *cmd, void *d_,
2028 core_dir_config *d=d_;
2029 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2034 if (strcasecmp(arg, "on") == 0) {
2035 d->use_canonical_name = USE_CANONICAL_NAME_ON;
2037 else if (strcasecmp(arg, "off") == 0) {
2038 d->use_canonical_name = USE_CANONICAL_NAME_OFF;
2040 else if (strcasecmp(arg, "dns") == 0) {
2041 d->use_canonical_name = USE_CANONICAL_NAME_DNS;
2044 return "parameter must be 'on', 'off', or 'dns'";
2050 static const char *include_config (cmd_parms *cmd, void *dummy,
2053 ap_directive_t *conftree = NULL;
2055 ap_process_resource_config(cmd->server,
2056 ap_server_root_relative(cmd->pool, name),
2057 &conftree, cmd->pool, cmd->temp_pool);
2058 *(ap_directive_t **)dummy = conftree;
2062 static const char *set_loglevel(cmd_parms *cmd, void *dummy, const char *arg)
2066 const char *err = ap_check_cmd_context(cmd,
2067 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2072 if ((str = ap_getword_conf(cmd->pool, &arg))) {
2073 if (!strcasecmp(str, "emerg")) {
2074 cmd->server->loglevel = APLOG_EMERG;
2076 else if (!strcasecmp(str, "alert")) {
2077 cmd->server->loglevel = APLOG_ALERT;
2079 else if (!strcasecmp(str, "crit")) {
2080 cmd->server->loglevel = APLOG_CRIT;
2082 else if (!strcasecmp(str, "error")) {
2083 cmd->server->loglevel = APLOG_ERR;
2085 else if (!strcasecmp(str, "warn")) {
2086 cmd->server->loglevel = APLOG_WARNING;
2088 else if (!strcasecmp(str, "notice")) {
2089 cmd->server->loglevel = APLOG_NOTICE;
2091 else if (!strcasecmp(str, "info")) {
2092 cmd->server->loglevel = APLOG_INFO;
2094 else if (!strcasecmp(str, "debug")) {
2095 cmd->server->loglevel = APLOG_DEBUG;
2098 return "LogLevel requires level keyword: one of "
2099 "emerg/alert/crit/error/warn/notice/info/debug";
2103 return "LogLevel requires level keyword";
2109 AP_DECLARE(const char *) ap_psignature(const char *prefix, request_rec *r)
2112 core_dir_config *conf;
2114 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
2116 if ((conf->server_signature == srv_sig_off)
2117 || (conf->server_signature == srv_sig_unset)) {
2121 apr_snprintf(sport, sizeof sport, "%u", (unsigned) ap_get_server_port(r));
2123 if (conf->server_signature == srv_sig_withmail) {
2124 return apr_pstrcat(r->pool, prefix, "<address>" AP_SERVER_BASEVERSION
2125 " Server at <a href=\"mailto:",
2126 r->server->server_admin, "\">",
2127 ap_get_server_name(r), "</a> Port ", sport,
2128 "</address>\n", NULL);
2130 return apr_pstrcat(r->pool, prefix, "<address>" AP_SERVER_BASEVERSION
2131 " Server at ", ap_get_server_name(r), " Port ", sport,
2132 "</address>\n", NULL);
2136 * Load an authorisation realm into our location configuration, applying the
2137 * usual rules that apply to realms.
2139 static const char *set_authname(cmd_parms *cmd, void *mconfig,
2142 core_dir_config *aconfig = (core_dir_config *)mconfig;
2144 aconfig->ap_auth_name = ap_escape_quotes(cmd->pool, word1);
2148 #ifdef _OSD_POSIX /* BS2000 Logon Passwd file */
2149 static const char *set_bs2000_account(cmd_parms *cmd, void *dummy, char *name)
2151 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2156 return os_set_account(cmd->pool, name);
2158 #endif /*_OSD_POSIX*/
2161 * Handle a request to include the server's OS platform in the Server
2162 * response header field (the ServerTokens directive). Unfortunately
2163 * this requires a new global in order to communicate the setting back to
2164 * http_main so it can insert the information in the right place in the
2168 static char *server_version = NULL;
2169 static int version_locked = 0;
2171 enum server_token_type {
2172 SrvTk_MIN, /* eg: Apache/1.3.0 */
2173 SrvTk_OS, /* eg: Apache/1.3.0 (UNIX) */
2174 SrvTk_FULL, /* eg: Apache/1.3.0 (UNIX) PHP/3.0 FooBar/1.2b */
2175 SrvTk_PRODUCT_ONLY /* eg: Apache */
2177 static enum server_token_type ap_server_tokens = SrvTk_FULL;
2179 static apr_status_t reset_version(void *dummy)
2182 ap_server_tokens = SrvTk_FULL;
2183 server_version = NULL;
2187 AP_DECLARE(const char *) ap_get_server_version(void)
2189 return (server_version ? server_version : AP_SERVER_BASEVERSION);
2192 AP_DECLARE(void) ap_add_version_component(apr_pool_t *pconf, const char *component)
2194 if (! version_locked) {
2196 * If the version string is null, register our cleanup to reset the
2197 * pointer on pool destruction. We also know that, if NULL,
2198 * we are adding the original SERVER_BASEVERSION string.
2200 if (server_version == NULL) {
2201 apr_pool_cleanup_register(pconf, NULL, reset_version,
2202 apr_pool_cleanup_null);
2203 server_version = apr_pstrdup(pconf, component);
2207 * Tack the given component identifier to the end of
2208 * the existing string.
2210 server_version = apr_pstrcat(pconf, server_version, " ",
2217 * This routine adds the real server base identity to the version string,
2218 * and then locks out changes until the next reconfig.
2220 static void ap_set_version(apr_pool_t *pconf)
2222 if (ap_server_tokens == SrvTk_PRODUCT_ONLY) {
2223 ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT);
2225 else if (ap_server_tokens == SrvTk_MIN) {
2226 ap_add_version_component(pconf, AP_SERVER_BASEVERSION);
2229 ap_add_version_component(pconf, AP_SERVER_BASEVERSION " (" PLATFORM ")");
2232 * Lock the server_version string if we're not displaying
2233 * the full set of tokens
2235 if (ap_server_tokens != SrvTk_FULL) {
2240 static const char *set_serv_tokens(cmd_parms *cmd, void *dummy,
2243 const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
2248 if (!strcasecmp(arg, "OS")) {
2249 ap_server_tokens = SrvTk_OS;
2251 else if (!strcasecmp(arg, "Min") || !strcasecmp(arg, "Minimal")) {
2252 ap_server_tokens = SrvTk_MIN;
2254 else if (!strcasecmp(arg, "Prod") || !strcasecmp(arg, "ProductOnly")) {
2255 ap_server_tokens = SrvTk_PRODUCT_ONLY;
2258 ap_server_tokens = SrvTk_FULL;
2263 static const char *set_limit_req_line(cmd_parms *cmd, void *dummy,
2266 const char *err = ap_check_cmd_context(cmd,
2267 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2275 return apr_pstrcat(cmd->temp_pool, "LimitRequestLine \"", arg,
2276 "\" must be a non-negative integer", NULL);
2278 if (lim > DEFAULT_LIMIT_REQUEST_LINE) {
2279 return apr_psprintf(cmd->temp_pool, "LimitRequestLine \"%s\" "
2280 "must not exceed the precompiled maximum of %d",
2281 arg, DEFAULT_LIMIT_REQUEST_LINE);
2283 cmd->server->limit_req_line = lim;
2287 static const char *set_limit_req_fieldsize(cmd_parms *cmd, void *dummy,
2290 const char *err = ap_check_cmd_context(cmd,
2291 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2299 return apr_pstrcat(cmd->temp_pool, "LimitRequestFieldsize \"", arg,
2300 "\" must be a non-negative integer (0 = no limit)",
2303 if (lim > DEFAULT_LIMIT_REQUEST_FIELDSIZE) {
2304 return apr_psprintf(cmd->temp_pool, "LimitRequestFieldsize \"%s\" "
2305 "must not exceed the precompiled maximum of %d",
2306 arg, DEFAULT_LIMIT_REQUEST_FIELDSIZE);
2308 cmd->server->limit_req_fieldsize = lim;
2312 static const char *set_limit_req_fields(cmd_parms *cmd, void *dummy,
2315 const char *err = ap_check_cmd_context(cmd,
2316 NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
2324 return apr_pstrcat(cmd->temp_pool, "LimitRequestFields \"", arg,
2325 "\" must be a non-negative integer (0 = no limit)",
2328 cmd->server->limit_req_fields = lim;
2332 static const char *set_limit_req_body(cmd_parms *cmd, void *conf_,
2335 core_dir_config *conf=conf_;
2336 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2342 /* WTF: If strtoul is not portable, then write a replacement.
2343 * Instead we have an idiotic define in httpd.h that prevents
2344 * it from being used even when it is available. Sheesh.
2346 conf->limit_req_body = (apr_off_t)strtol(arg, &errp, 10);
2347 if (*errp != '\0') {
2348 return "LimitRequestBody requires a non-negative integer.";
2353 static const char *set_limit_xml_req_body(cmd_parms *cmd, void *conf_,
2356 core_dir_config *conf = conf_;
2357 const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
2362 conf->limit_xml_body = atol(arg);
2363 if (conf->limit_xml_body < 0)
2364 return "LimitXMLRequestBody requires a non-negative integer.";
2369 AP_DECLARE(size_t) ap_get_limit_xml_body(const request_rec *r)
2371 core_dir_config *conf;
2373 conf = ap_get_module_config(r->per_dir_config, &core_module);
2374 if (conf->limit_xml_body == AP_LIMIT_UNSET)
2375 return AP_DEFAULT_LIMIT_XML_BODY;
2376 return (size_t)conf->limit_xml_body;
2379 #if !defined (RLIMIT_CPU) || !(defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS)) || !defined (RLIMIT_NPROC)
2380 static const char *no_set_limit(cmd_parms *cmd, void *conf_,
2381 const char *arg, const char *arg2)
2383 ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, cmd->server,
2384 "%s not supported on this platform", cmd->cmd->name);
2390 static const char *set_limit_cpu(cmd_parms *cmd, void *conf_,
2391 const char *arg, const char *arg2)
2393 core_dir_config *conf=conf_;
2395 unixd_set_rlimit(cmd, &conf->limit_cpu, arg, arg2, RLIMIT_CPU);
2400 #if defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS)
2401 static const char *set_limit_mem(cmd_parms *cmd, void *conf_,
2402 const char *arg, const char * arg2)
2404 core_dir_config *conf=conf_;
2406 #if defined(RLIMIT_AS)
2407 unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2 ,RLIMIT_AS);
2408 #elif defined(RLIMIT_DATA)
2409 unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2, RLIMIT_DATA);
2410 #elif defined(RLIMIT_VMEM)
2411 unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2, RLIMIT_VMEM);
2418 static const char *set_limit_nproc(cmd_parms *cmd, void *conf_,
2419 const char *arg, const char * arg2)
2421 core_dir_config *conf=conf_;
2423 unixd_set_rlimit(cmd, &conf->limit_nproc, arg, arg2, RLIMIT_NPROC);
2428 static const char *add_ct_output_filters(cmd_parms *cmd, void *conf_,
2429 const char *arg, const char *arg2)
2431 core_dir_config *conf=conf_;
2432 ap_filter_rec_t *old, *new;
2434 if (!conf->ct_output_filters) {
2435 conf->ct_output_filters = apr_hash_make(cmd->pool);
2439 old = (ap_filter_rec_t*) apr_hash_get(conf->ct_output_filters, arg2,
2440 APR_HASH_KEY_STRING);
2443 new = apr_pcalloc(cmd->pool, sizeof(ap_filter_rec_t));
2444 new->name = apr_pstrdup(cmd->pool, arg);
2446 /* We found something, so let's append it. */
2451 apr_hash_set(conf->ct_output_filters, arg2, APR_HASH_KEY_STRING, new);
2456 static apr_status_t writev_it_all(apr_socket_t *s,
2457 struct iovec *vec, int nvec,
2458 apr_size_t len, apr_size_t *nbytes)
2460 apr_size_t bytes_written = 0;
2467 /* XXX handle checking for non-blocking socket */
2468 while (bytes_written != len) {
2469 rv = apr_sendv(s, vec + i, nvec - i, &n);
2471 if (rv != APR_SUCCESS)
2475 /* If the write did not complete, adjust the iovecs and issue
2478 if (bytes_written < len) {
2479 /* Skip over the vectors that have already been written */
2480 apr_size_t cnt = vec[i].iov_len;
2481 while (n >= cnt && i + 1 < nvec) {
2483 cnt += vec[i].iov_len;
2486 /* Handle partial write of vec i */
2487 vec[i].iov_base = (char *) vec[i].iov_base +
2488 (vec[i].iov_len - (cnt - n));
2489 vec[i].iov_len = cnt -n;
2492 n = len - bytes_written;
2498 /* sendfile_it_all()
2499 * send the entire file using sendfile()
2500 * handle partial writes
2501 * return only when all bytes have been sent or an error is encountered.
2504 #if APR_HAS_SENDFILE
2505 static apr_status_t sendfile_it_all(core_net_rec *c,
2508 apr_off_t file_offset,
2509 apr_size_t file_bytes_left,
2510 apr_size_t total_bytes_left,
2515 apr_int32_t timeout = 0;
2518 AP_DEBUG_ASSERT((apr_getsocketopt(c->client_socket, APR_SO_TIMEOUT,
2519 &timeout) == APR_SUCCESS) &&
2520 timeout > 0); /* socket must be in timeout mode */
2522 apr_size_t tmplen = file_bytes_left;
2524 rv = apr_sendfile(c->client_socket, fd, hdtr, &file_offset, &tmplen,
2526 total_bytes_left -= tmplen;
2527 if (!total_bytes_left || rv != APR_SUCCESS) {
2528 return rv; /* normal case & error exit */
2531 AP_DEBUG_ASSERT(total_bytes_left > 0 && tmplen > 0);
2533 /* partial write, oooh noooo...
2534 * Skip over any header data which was written
2536 while (tmplen && hdtr->numheaders) {
2537 if (tmplen >= hdtr->headers[0].iov_len) {
2538 tmplen -= hdtr->headers[0].iov_len;
2543 char *iov_base = (char *)hdtr->headers[0].iov_base;
2545 hdtr->headers[0].iov_len -= tmplen;
2547 hdtr->headers[0].iov_base = iov_base;
2552 /* Skip over any file data which was written */
2554 if (tmplen <= file_bytes_left) {
2555 file_offset += tmplen;
2556 file_bytes_left -= tmplen;
2559 tmplen -= file_bytes_left;
2560 file_bytes_left = 0;
2563 /* Skip over any trailer data which was written */
2565 while (tmplen && hdtr->numtrailers) {
2566 if (tmplen >= hdtr->trailers[0].iov_len) {
2567 tmplen -= hdtr->trailers[0].iov_len;
2568 --hdtr->numtrailers;
2572 char *iov_base = (char *)hdtr->trailers[0].iov_base;
2574 hdtr->trailers[0].iov_len -= tmplen;
2576 hdtr->trailers[0].iov_base = iov_base;
2585 * emulate_sendfile()
2586 * Sends the contents of file fd along with header/trailer bytes, if any,
2587 * to the network. emulate_sendfile will return only when all the bytes have been
2588 * sent (i.e., it handles partial writes) or on a network error condition.
2590 static apr_status_t emulate_sendfile(core_net_rec *c, apr_file_t *fd,
2591 apr_hdtr_t *hdtr, apr_off_t offset,
2592 apr_size_t length, apr_size_t *nbytes)
2594 apr_status_t rv = APR_SUCCESS;
2595 apr_int32_t togo; /* Remaining number of bytes in the file to send */
2596 apr_size_t sendlen = 0;
2597 apr_size_t bytes_sent;
2599 apr_off_t o; /* Track the file offset for partial writes */
2605 * writev_it_all handles partial writes.
2606 * XXX: optimization... if headers are less than MIN_WRITE_SIZE, copy
2609 if ( hdtr && hdtr->numheaders > 0 ) {
2610 for (i = 0; i < hdtr->numheaders; i++) {
2611 sendlen += hdtr->headers[i].iov_len;
2613 rv = writev_it_all(c->client_socket, hdtr->headers, hdtr->numheaders,
2614 sendlen, &bytes_sent);
2615 if (rv == APR_SUCCESS)
2616 *nbytes += bytes_sent; /* track total bytes sent */
2619 /* Seek the file to 'offset' */
2620 if (offset != 0 && rv == APR_SUCCESS) {
2621 rv = apr_file_seek(fd, APR_SET, &offset);
2624 /* Send the file, making sure to handle partial writes */
2626 while (rv == APR_SUCCESS && togo) {
2627 sendlen = togo > sizeof(buffer) ? sizeof(buffer) : togo;
2629 rv = apr_file_read(fd, buffer, &sendlen);
2630 while (rv == APR_SUCCESS && sendlen) {
2631 bytes_sent = sendlen;
2632 rv = apr_send(c->client_socket, &buffer[o], &bytes_sent);
2633 if (rv == APR_SUCCESS) {
2634 sendlen -= bytes_sent; /* sendlen != bytes_sent ==> partial write */
2635 o += bytes_sent; /* o is where we are in the buffer */
2636 *nbytes += bytes_sent;
2637 togo -= bytes_sent; /* track how much of the file we've sent */
2642 /* Send the trailers
2643 * XXX: optimization... if it will fit, send this on the last send in the
2647 if ( rv == APR_SUCCESS && hdtr && hdtr->numtrailers > 0 ) {
2648 for (i = 0; i < hdtr->numtrailers; i++) {
2649 sendlen += hdtr->trailers[i].iov_len;
2651 rv = writev_it_all(c->client_socket, hdtr->trailers, hdtr->numtrailers,
2652 sendlen, &bytes_sent);
2653 if (rv == APR_SUCCESS)
2654 *nbytes += bytes_sent;
2660 /* Note --- ErrorDocument will now work from .htaccess files.
2661 * The AllowOverride of Fileinfo allows webmasters to turn it off
2664 static const command_rec core_cmds[] = {
2666 /* Old access config file commands */
2668 AP_INIT_RAW_ARGS("<Directory", dirsection, NULL, RSRC_CONF,
2669 "Container for directives affecting resources located in the specified "
2671 AP_INIT_RAW_ARGS("<Location", urlsection, NULL, RSRC_CONF,
2672 "Container for directives affecting resources accessed through the "
2673 "specified URL paths"),
2674 AP_INIT_RAW_ARGS("<VirtualHost", virtualhost_section, NULL, RSRC_CONF,
2675 "Container to map directives to a particular virtual host, takes one or "
2676 "more host addresses"),
2677 AP_INIT_RAW_ARGS("<Files", filesection, NULL, OR_ALL,
2678 "Container for directives affecting files matching specified patterns"),
2679 AP_INIT_RAW_ARGS("<Limit", ap_limit_section, NULL, OR_ALL,
2680 "Container for authentication directives when accessed using specified HTTP "
2682 AP_INIT_RAW_ARGS("<LimitExcept", ap_limit_section, (void*)1, OR_ALL,
2683 "Container for authentication directives to be applied when any HTTP "
2684 "method other than those specified is used to access the resource"),
2685 AP_INIT_TAKE1("<IfModule", start_ifmod, NULL, EXEC_ON_READ | OR_ALL,
2686 "Container for directives based on existance of specified modules"),
2687 AP_INIT_TAKE1("<IfDefine", start_ifdefine, NULL, EXEC_ON_READ | OR_ALL,
2688 "Container for directives based on existance of command line defines"),
2689 AP_INIT_RAW_ARGS("<DirectoryMatch", dirsection, (void*)1, RSRC_CONF,
2690 "Container for directives affecting resources located in the "
2691 "specified directories"),
2692 AP_INIT_RAW_ARGS("<LocationMatch", urlsection, (void*)1, RSRC_CONF,
2693 "Container for directives affecting resources accessed through the "
2694 "specified URL paths"),
2695 AP_INIT_RAW_ARGS("<FilesMatch", filesection, (void*)1, OR_ALL,
2696 "Container for directives affecting files matching specified patterns"),
2697 AP_INIT_TAKE1("AuthType", ap_set_string_slot,
2698 (void*)APR_XtOffsetOf(core_dir_config, ap_auth_type), OR_AUTHCFG,
2699 "An HTTP authorization type (e.g., \"Basic\")"),
2700 AP_INIT_TAKE1("AuthName", set_authname, NULL, OR_AUTHCFG,
2701 "The authentication realm (e.g. \"Members Only\")"),
2702 AP_INIT_RAW_ARGS("Require", require, NULL, OR_AUTHCFG,
2703 "Selects which authenticated users or groups may access a protected space"),
2704 AP_INIT_TAKE1("Satisfy", satisfy, NULL, OR_AUTHCFG,
2705 "access policy if both allow and require used ('all' or 'any')"),
2707 AP_INIT_TAKE1("GprofDir", set_gprof_dir, NULL, RSRC_CONF,
2708 "Directory to plop gmon.out files"),
2710 AP_INIT_TAKE1("AddDefaultCharset", set_add_default_charset, NULL, OR_FILEINFO,
2711 "The name of the default charset to add to any Content-Type without one or 'Off' to disable"),
2712 AP_INIT_TAKE1("AcceptPathInfo", set_accept_path_info, NULL, OR_FILEINFO,
2713 "Set to on or off for PATH_INFO to be accepted by handlers, or default for the per-handler preference"),
2715 /* Old resource config file commands */
2717 AP_INIT_RAW_ARGS("AccessFileName", set_access_name, NULL, RSRC_CONF,
2718 "Name(s) of per-directory config files (default: .htaccess)"),
2719 AP_INIT_TAKE1("DocumentRoot", set_document_root, NULL, RSRC_CONF,
2720 "Root directory of the document tree"),
2721 AP_INIT_TAKE2("ErrorDocument", set_error_document, NULL, OR_FILEINFO,
2722 "Change responses for HTTP errors"),
2723 AP_INIT_RAW_ARGS("AllowOverride", set_override, NULL, ACCESS_CONF,
2724 "Controls what groups of directives can be configured by per-directory "
2726 AP_INIT_RAW_ARGS("Options", set_options, NULL, OR_OPTIONS,
2727 "Set a number of attributes for a given directory"),
2728 AP_INIT_TAKE1("DefaultType", ap_set_string_slot,
2729 (void*)APR_XtOffsetOf (core_dir_config, ap_default_type),
2730 OR_FILEINFO, "the default MIME type for untypable files"),
2731 AP_INIT_RAW_ARGS("FileETag", set_etag_bits, NULL, OR_FILEINFO,
2732 "Specify components used to construct a file's ETag"),
2734 /* Old server config file commands */
2736 AP_INIT_TAKE1("Port", ap_set_deprecated, NULL, RSRC_CONF,
2737 "Port was replaced with Listen in Apache 2.0"),
2738 AP_INIT_TAKE1("HostnameLookups", set_hostname_lookups, NULL,
2739 ACCESS_CONF|RSRC_CONF,
2740 "\"on\" to enable, \"off\" to disable reverse DNS lookups, or \"double\" to "
2741 "enable double-reverse DNS lookups"),
2742 AP_INIT_TAKE1("ServerAdmin", set_server_string_slot,
2743 (void *)APR_XtOffsetOf (server_rec, server_admin), RSRC_CONF,
2744 "The email address of the server administrator"),
2745 AP_INIT_TAKE1("ServerName", server_hostname_port, NULL, RSRC_CONF,
2746 "The hostname and port of the server"),
2747 AP_INIT_TAKE1("ServerSignature", set_signature_flag, NULL, OR_ALL,
2748 "En-/disable server signature (on|off|email)"),
2749 AP_INIT_TAKE1("ServerRoot", set_server_root, NULL, RSRC_CONF,
2750 "Common directory of server-related files (logs, confs, etc.)"),
2751 AP_INIT_TAKE1("ErrorLog", set_server_string_slot,
2752 (void *)APR_XtOffsetOf (server_rec, error_fname), RSRC_CONF,
2753 "The filename of the error log"),
2754 AP_INIT_RAW_ARGS("ServerAlias", set_server_alias, NULL, RSRC_CONF,
2755 "A name or names alternately used to access the server"),
2756 AP_INIT_TAKE1("ServerPath", set_serverpath, NULL, RSRC_CONF,
2757 "The pathname the server can be reached at"),
2758 AP_INIT_TAKE1("Timeout", set_timeout, NULL, RSRC_CONF,
2759 "Timeout duration (sec)"),
2760 AP_INIT_FLAG("IdentityCheck", set_idcheck, NULL, RSRC_CONF|ACCESS_CONF,
2761 "Enable identd (RFC 1413) user lookups - SLOW"),
2762 AP_INIT_FLAG("ContentDigest", set_content_md5, NULL, OR_OPTIONS,
2763 "whether or not to send a Content-MD5 header with each request"),
2764 AP_INIT_TAKE1("UseCanonicalName", set_use_canonical_name, NULL,
2765 RSRC_CONF|ACCESS_CONF,
2766 "How to work out the ServerName : Port when constructing URLs"),
2767 /* TODO: RlimitFoo should all be part of mod_cgi, not in the core */
2768 /* TODO: ListenBacklog in MPM */
2769 AP_INIT_TAKE1("Include", include_config, NULL,
2770 (RSRC_CONF | ACCESS_CONF | EXEC_ON_READ),
2771 "Name of the config file to be included"),
2772 AP_INIT_TAKE1("LogLevel", set_loglevel, NULL, RSRC_CONF,
2773 "Level of verbosity in error logging"),
2774 AP_INIT_TAKE1("NameVirtualHost", ap_set_name_virtual_host, NULL, RSRC_CONF,
2775 "A numeric IP address:port, or the name of a host"),
2777 AP_INIT_TAKE1("BS2000Account", set_bs2000_account, NULL, RSRC_CONF,
2778 "Name of server User's bs2000 logon account name"),
2780 AP_INIT_TAKE1("ServerTokens", set_serv_tokens, NULL, RSRC_CONF,
2781 "Determine tokens displayed in the Server: header - Min(imal), OS or Full"),
2782 AP_INIT_TAKE1("LimitRequestLine", set_limit_req_line, NULL, RSRC_CONF,
2783 "Limit on maximum size of an HTTP request line"),
2784 AP_INIT_TAKE1("LimitRequestFieldsize", set_limit_req_fieldsize, NULL,
2786 "Limit on maximum size of an HTTP request header field"),
2787 AP_INIT_TAKE1("LimitRequestFields", set_limit_req_fields, NULL, RSRC_CONF,
2788 "Limit (0 = unlimited) on max number of header fields in a request message"),
2789 AP_INIT_TAKE1("LimitRequestBody", set_limit_req_body,
2790 (void*)APR_XtOffsetOf(core_dir_config, limit_req_body), OR_ALL,
2791 "Limit (in bytes) on maximum size of request message body"),
2792 AP_INIT_TAKE1("LimitXMLRequestBody", set_limit_xml_req_body, NULL, OR_ALL,
2793 "Limit (in bytes) on maximum size of an XML-based request "
2796 /* System Resource Controls */
2798 AP_INIT_TAKE12("RLimitCPU", set_limit_cpu,
2799 (void*)APR_XtOffsetOf(core_dir_config, limit_cpu),
2800 OR_ALL, "Soft/hard limits for max CPU usage in seconds"),
2802 AP_INIT_TAKE12("RLimitCPU", no_set_limit, NULL,
2803 OR_ALL, "Soft/hard limits for max CPU usage in seconds"),
2805 #if defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined (RLIMIT_AS)
2806 AP_INIT_TAKE12("RLimitMEM", set_limit_mem,
2807 (void*)APR_XtOffsetOf(core_dir_config, limit_mem),
2808 OR_ALL, "Soft/hard limits for max memory usage per process"),
2810 AP_INIT_TAKE12("RLimitMEM", no_set_limit, NULL,
2811 OR_ALL, "Soft/hard limits for max memory usage per process"),
2814 AP_INIT_TAKE12("RLimitNPROC", set_limit_nproc,
2815 (void*)APR_XtOffsetOf(core_dir_config, limit_nproc),
2816 OR_ALL, "soft/hard limits for max number of processes per uid"),
2818 AP_INIT_TAKE12("RLimitNPROC", no_set_limit, NULL,
2819 OR_ALL, "soft/hard limits for max number of processes per uid"),
2822 AP_INIT_TAKE1("ForceType", ap_set_string_slot_lower,
2823 (void *)APR_XtOffsetOf(core_dir_config, mime_type), OR_FILEINFO,
2824 "a mime type that overrides other configured type"),
2825 AP_INIT_TAKE1("SetHandler", ap_set_string_slot_lower,
2826 (void *)APR_XtOffsetOf(core_dir_config, handler), OR_FILEINFO,
2827 "a handler name that overrides any other configured handler"),
2828 AP_INIT_TAKE1("SetOutputFilter", ap_set_string_slot,
2829 (void *)APR_XtOffsetOf(core_dir_config, output_filters), OR_FILEINFO,
2830 "filter (or ; delimited list of filters) to be run on the request content"),
2831 AP_INIT_TAKE1("SetInputFilter", ap_set_string_slot,
2832 (void *)APR_XtOffsetOf(core_dir_config, input_filters), OR_FILEINFO,
2833 "filter (or ; delimited list of filters) to be run on the request body"),
2834 AP_INIT_ITERATE2("AddOutputFilterByType", add_ct_output_filters,
2835 (void *)APR_XtOffsetOf(core_dir_config, ct_output_filters), OR_FILEINFO,
2836 "output filter name followed by one or more content-types"),
2839 * These are default configuration directives that mpms can/should
2840 * pay attention to. If an mpm wishes to use these, they should
2841 * #defined them in mpm.h.
2843 #ifdef AP_MPM_WANT_SET_PIDFILE
2844 AP_INIT_TAKE1("PidFile", ap_mpm_set_pidfile, NULL, RSRC_CONF, \
2845 "A file for logging the server process ID"),
2847 #ifdef AP_MPM_WANT_SET_SCOREBOARD
2848 AP_INIT_TAKE1("ScoreBoardFile", ap_mpm_set_scoreboard, NULL, RSRC_CONF, \
2849 "A file for Apache to maintain runtime process management information"),
2851 #ifdef AP_MPM_WANT_SET_LOCKFILE
2852 AP_INIT_TAKE1("LockFile", ap_mpm_set_lockfile, NULL, RSRC_CONF, \
2853 "The lockfile used when Apache needs to lock the accept() call"),
2855 #ifdef AP_MPM_WANT_SET_MAX_REQUESTS
2856 AP_INIT_TAKE1("MaxRequestsPerChild", ap_mpm_set_max_requests, NULL, RSRC_CONF,\
2857 "Maximum number of requests a particular child serves before dying."),
2859 #ifdef AP_MPM_WANT_SET_COREDUMPDIR
2860 AP_INIT_TAKE1("CoreDumpDirectory", ap_mpm_set_coredumpdir, NULL, RSRC_CONF, \
2861 "The location of the directory Apache changes to before dumping core"),
2863 #ifdef AP_MPM_WANT_SET_ACCEPT_LOCK_MECH
2864 AP_INIT_TAKE1("AcceptMutex", ap_mpm_set_accept_lock_mech, NULL, RSRC_CONF, \
2865 "The system mutex implementation to use for the accept mutex"),
2870 /*****************************************************************
2872 * Core handlers for various phases of server operation...
2875 AP_DECLARE_NONSTD(int) ap_core_translate(request_rec *r)
2877 void *sconf = r->server->module_config;
2878 core_server_config *conf = ap_get_module_config(sconf, &core_module);
2880 /* XXX this seems too specific, this should probably become
2881 * some general-case test
2884 return HTTP_FORBIDDEN;
2886 if (!r->uri || ((r->uri[0] != '/') && strcmp(r->uri, "*"))) {
2887 ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
2888 "Invalid URI in request %s", r->the_request);
2889 return HTTP_BAD_REQUEST;
2893 && !strncmp(r->uri, r->server->path, r->server->pathlen)
2894 && (r->server->path[r->server->pathlen - 1] == '/'
2895 || r->uri[r->server->pathlen] == '/'
2896 || r->uri[r->server->pathlen] == '\0')) {
2897 if (apr_filepath_merge(&r->filename, conf->ap_document_root,
2898 r->uri + r->server->pathlen,
2899 APR_FILEPATH_TRUENAME
2900 | APR_FILEPATH_SECUREROOT, r->pool)
2902 return HTTP_FORBIDDEN;
2904 r->canonical_filename = r->filename;
2908 * Make sure that we do not mess up the translation by adding two
2909 * /'s in a row. This happens under windows when the document
2910 * root ends with a /
2912 if (apr_filepath_merge(&r->filename, conf->ap_document_root,
2913 r->uri + ((*(r->uri) == '/') ? 1 : 0),
2914 APR_FILEPATH_TRUENAME
2915 | APR_FILEPATH_SECUREROOT, r->pool)
2917 return HTTP_FORBIDDEN;
2919 r->canonical_filename = r->filename;
2925 /*****************************************************************
2927 * Test the filesystem name through directory_walk and file_walk
2929 static int core_map_to_storage(request_rec *r)
2933 if ((access_status = ap_directory_walk(r))) {
2934 return access_status;
2937 if ((access_status = ap_file_walk(r))) {
2938 return access_status;
2945 static int do_nothing(request_rec *r) { return OK; }
2948 static int core_override_type(request_rec *r)
2950 core_dir_config *conf =
2951 (core_dir_config *)ap_get_module_config(r->per_dir_config,
2954 /* Check for overrides with ForceType / SetHandler
2956 if (conf->mime_type && strcmp(conf->mime_type, "none"))
2957 r->content_type = conf->mime_type;
2959 if (conf->handler && strcmp(conf->handler, "none"))
2960 r->handler = conf->handler;
2962 /* Deal with the poor soul who is trying to force path_info to be
2963 * accepted within the core_handler, where they will let the subreq
2964 * address it's contents. This is toggled by the user in the very
2965 * beginning of the fixup phase, so modules should override the user's
2966 * discresion in their own module fixup phase. It is tristate, if
2967 * the user doesn't specify, the result is 2 (which the module may
2968 * interpret to it's own customary behavior.) It won't be tounched
2969 * if the value is no longer undefined (2), so any module changing
2970 * the value prior to the fixup phase OVERRIDES the user's choice.
2972 if ((r->used_path_info == AP_REQ_DEFAULT_PATH_INFO)
2973 && (conf->accept_path_info != 3)) {
2974 r->used_path_info = conf->accept_path_info;
2979 static int core_filters_type(request_rec *r)
2981 core_dir_config *conf;
2982 const char *ctype, *ctypes;
2984 conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
2987 /* We can't do anything with proxy requests, no content-types or if
2988 * we don't have a filter configured. */
2989 if (r->proxyreq != PROXYREQ_NONE || !r->content_type ||
2990 !conf->ct_output_filters) {
2994 ctypes = r->content_type;
2996 /* We must be able to handle decorated content-types. */
2997 while (*ctypes && (ctype = ap_getword(r->pool, &ctypes, ';'))) {
2998 ap_filter_rec_t *ct_filter;
2999 ct_filter = apr_hash_get(conf->ct_output_filters, ctype,
3000 APR_HASH_KEY_STRING);
3002 ap_add_output_filter(ct_filter->name, NULL, r, r->connection);
3003 ct_filter = ct_filter->next;
3010 static int default_handler(request_rec *r)
3012 apr_bucket_brigade *bb;
3016 apr_file_t *fd = NULL;
3017 apr_status_t status;
3018 /* XXX if/when somebody writes a content-md5 filter we either need to
3019 * remove this support or coordinate when to use the filter vs.
3020 * when to use this code
3021 * The current choice of when to compute the md5 here matches the 1.3
3022 * support fairly closely (unlike 1.3, we don't handle computing md5
3023 * when the charset is translated).
3025 int bld_content_md5;
3028 * The old way of doing handlers meant that this handler would
3029 * match literally anything - this way will require handler to
3030 * have a / in the middle, which probably captures the original
3031 * intent, but may cause problems at first - Ben 7th Jan 01
3032 * Don't try to serve a dir. Some OSs do weird things with
3035 if ((strcmp(r->handler, "default-handler")
3036 && !ap_strchr_c(r->handler, '/'))
3037 || r->finfo.filetype == APR_DIR)
3040 d = (core_dir_config *)ap_get_module_config(r->per_dir_config,
3042 bld_content_md5 = (d->content_md5 & 1)
3043 && r->output_filters->frec->ftype != AP_FTYPE_CONTENT;
3045 ap_allow_standard_methods(r, MERGE_ALLOW, M_GET, M_OPTIONS, M_POST, -1);
3047 /* If filters intend to consume the request body, they must
3048 * register an InputFilter to slurp the contents of the POST
3049 * data from the POST input stream. It no longer exists when
3050 * the output filters are invoked by the default handler.
3052 if ((errstatus = ap_discard_request_body(r)) != OK) {
3055 if (r->method_number == M_INVALID) {
3056 ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, 0, r,
3057 "Invalid method in request %s", r->the_request);
3058 return HTTP_NOT_IMPLEMENTED;
3060 if (r->method_number == M_OPTIONS) {
3061 return ap_send_http_options(r);
3063 if (r->method_number != M_GET && r->method_number != M_POST) {
3064 return HTTP_METHOD_NOT_ALLOWED;
3066 if (r->finfo.filetype == 0) {
3067 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, r,
3068 "File does not exist: %s", r->filename);
3069 return HTTP_NOT_FOUND;
3071 if (!(r->used_path_info & 1) && r->path_info && *r->path_info) {
3072 ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, r,
3073 "File does not exist: %s",
3074 apr_pstrcat(r->pool, r->filename, r->path_info, NULL));
3075 return HTTP_NOT_FOUND;
3077 if ((status = apr_file_open(&fd, r->filename, APR_READ | APR_BINARY, 0, r->pool)) != APR_SUCCESS) {
3078 ap_log_rerror(APLOG_MARK, APLOG_ERR, status, r,
3079 "file permissions deny server access: %s", r->filename);
3080 return HTTP_FORBIDDEN;
3082 ap_update_mtime(r, r->finfo.mtime);
3083 ap_set_last_modified(r);
3085 apr_table_setn(r->headers_out, "Accept-Ranges", "bytes");
3086 ap_set_content_length(r, r->finfo.size);
3087 if ((errstatus = ap_meets_conditions(r)) != OK) {
3092 if (bld_content_md5) {
3093 apr_table_setn(r->headers_out, "Content-MD5",
3094 ap_md5digest(r->pool, fd));
3097 bb = apr_brigade_create(r->pool);
3098 #if APR_HAS_LARGE_FILES
3099 if (r->finfo.size > AP_MAX_SENDFILE) {
3100 /* APR_HAS_LARGE_FILES issue; must split into mutiple buckets,
3101 * no greater than MAX(apr_size_t), and more granular than that
3102 * in case the brigade code/filters attempt to read it directly.
3104 apr_off_t fsize = r->finfo.size;
3105 e = apr_bucket_file_create(fd, 0, AP_MAX_SENDFILE, r->pool);
3106 while (fsize > AP_MAX_SENDFILE) {
3108 apr_bucket_copy(e, &ce);
3109 APR_BRIGADE_INSERT_TAIL(bb, ce);
3110 e->start += AP_MAX_SENDFILE;
3111 fsize -= AP_MAX_SENDFILE;
3113 e->length = (apr_size_t)fsize; /* Resize just the last bucket */
3117 e = apr_bucket_file_create(fd, 0, (apr_size_t)r->finfo.size, r->pool);
3119 APR_BRIGADE_INSERT_TAIL(bb, e);
3120 e = apr_bucket_eos_create();
3121 APR_BRIGADE_INSERT_TAIL(bb, e);
3123 return ap_pass_brigade(r->output_filters, bb);
3126 static int net_time_filter(ap_filter_t *f, apr_bucket_brigade *b,
3127 ap_input_mode_t mode, apr_read_type_e block,
3128 apr_off_t readbytes)
3130 int keptalive = f->c->keepalive == 1;
3131 apr_socket_t *csd = ap_get_module_config(f->c->conn_config, &core_module);
3132 int *first_line = f->ctx;
3135 f->ctx = first_line = apr_palloc(f->r->pool, sizeof(*first_line));
3139 if (mode != AP_MODE_INIT && mode != AP_MODE_EATCRLF) {
3141 apr_setsocketopt(csd, APR_SO_TIMEOUT,
3143 ? f->c->base_server->keep_alive_timeout * APR_USEC_PER_SEC
3144 : f->c->base_server->timeout * APR_USEC_PER_SEC));
3149 apr_setsocketopt(csd, APR_SO_TIMEOUT,
3150 (int)(f->c->base_server->timeout * APR_USEC_PER_SEC));
3154 return ap_get_brigade(f->next, b, mode, block, readbytes);
3158 * Remove all zero length buckets from the brigade.
3160 #define BRIGADE_NORMALIZE(b) \
3162 apr_bucket *e = APR_BRIGADE_FIRST(b); \
3164 if (e->length == 0) { \
3166 d = APR_BUCKET_NEXT(e); \
3167 apr_bucket_delete(e); \
3170 e = APR_BUCKET_NEXT(e); \
3171 } while (!APR_BRIGADE_EMPTY(b) && (e != APR_BRIGADE_SENTINEL(b))); \
3174 static int core_input_filter(ap_filter_t *f, apr_bucket_brigade *b,
3175 ap_input_mode_t mode, apr_read_type_e block,
3176 apr_off_t readbytes)
3180 core_net_rec *net = f->ctx;
3181 core_ctx_t *ctx = net->in_ctx;
3185 if (mode == AP_MODE_INIT) {
3187 * this mode is for filters that might need to 'initialize'
3188 * a connection before reading request data from a client.
3189 * NNTP over SSL for example needs to handshake before the
3190 * server sends the welcome message.
3191 * such filters would have changed the mode before this point
3192 * is reached. however, protocol modules such as NNTP should
3193 * not need to know anything about SSL. given the example, if
3194 * SSL is not in the filter chain, AP_MODE_INIT is a noop.
3201 ctx = apr_pcalloc(f->c->pool, sizeof(*ctx));
3202 ctx->b = apr_brigade_create(f->c->pool);
3204 /* seed the brigade with the client socket. */
3205 e = apr_bucket_socket_create(net->client_socket);
3206 APR_BRIGADE_INSERT_TAIL(ctx->b, e);
3209 else if (APR_BRIGADE_EMPTY(ctx->b)) {
3213 /* ### This is bad. */
3214 BRIGADE_NORMALIZE(ctx->b);
3216 /* check for empty brigade again *AFTER* BRIGADE_NORMALIZE()
3217 * If we have lost our socket bucket (see above), we are EOF.
3219 * Ideally, this should be returning SUCCESS with EOS bucket, but
3220 * some higher-up APIs (spec. read_request_line via ap_rgetline)
3221 * want an error code. */
3222 if (APR_BRIGADE_EMPTY(ctx->b)) {
3226 /* ### AP_MODE_PEEK is a horrific name for this mode because we also
3227 * eat any CRLFs that we see. That's not the obvious intention of
3228 * this mode. Determine whether anyone actually uses this or not. */
3229 if (mode == AP_MODE_EATCRLF) {
3233 /* The purpose of this loop is to ignore any CRLF (or LF) at the end
3234 * of a request. Many browsers send extra lines at the end of POST
3235 * requests. We use the PEEK method to determine if there is more
3236 * data on the socket, so that we know if we should delay sending the
3237 * end of one request until we have served the second request in a
3238 * pipelined situation. We don't want to actually delay sending a
3239 * response if the server finds a CRLF (or LF), becuause that doesn't
3240 * mean that there is another request, just a blank line.
3244 if (APR_BRIGADE_EMPTY(ctx->b))
3247 e = APR_BRIGADE_FIRST(ctx->b);
3249 rv = apr_bucket_read(e, &str, &len, APR_NONBLOCK_READ);
3251 if (rv != APR_SUCCESS)
3255 while (c < str + len) {
3256 if (*c == APR_ASCII_LF)
3258 else if (*c == APR_ASCII_CR && *(c + 1) == APR_ASCII_LF)
3263 /* If we reach here, we were a bucket just full of CRLFs, so
3264 * just toss the bucket. */
3265 /* FIXME: Is this the right thing to do in the core? */
3266 apr_bucket_delete(e);
3270 /* If mode is EXHAUSTIVE, we want to just read everything until the end
3271 * of the brigade, which in this case means the end of the socket.
3272 * To do this, we attach the brigade that has currently been setaside to
3273 * the brigade that was passed down, and send that brigade back.
3275 * NOTE: This is VERY dangerous to use, and should only be done with
3276 * extreme caution. However, the Perchild MPM needs this feature
3277 * if it is ever going to work correctly again. With this, the Perchild
3278 * MPM can easily request the socket and all data that has been read,
3279 * which means that it can pass it to the correct child process.
3281 if (mode == AP_MODE_EXHAUSTIVE) {
3285 /* Force a recompute of the length and force a read-all */
3286 apr_brigade_length(ctx->b, 1, &total);
3287 APR_BRIGADE_CONCAT(b, ctx->b);
3288 /* We have read until the brigade was empty, so we know that we
3290 e = apr_bucket_eos_create();
3291 APR_BRIGADE_INSERT_TAIL(b, e);
3294 /* read up to the amount they specified. */
3295 if (mode == AP_MODE_READBYTES || mode == AP_MODE_SPECULATIVE) {
3298 apr_bucket_brigade *newbb;
3300 AP_DEBUG_ASSERT(readbytes > 0);
3302 e = APR_BRIGADE_FIRST(ctx->b);
3303 rv = apr_bucket_read(e, &str, &len, block);
3305 if (APR_STATUS_IS_EAGAIN(rv)) {
3308 else if (rv != APR_SUCCESS) {
3310 } else if (block == APR_BLOCK_READ && len == 0) {
3311 /* We wanted to read some bytes in blocking mode. We read
3312 * 0 bytes. Hence, we now assume we are EOS.
3314 * When we are in normal mode, return an EOS bucket to the
3316 * When we are in speculative mode, leave ctx->b empty, so
3317 * that the next call returns an EOS bucket.
3319 apr_bucket_delete(e);
3321 if (mode == AP_MODE_READBYTES) {
3322 e = apr_bucket_eos_create();
3323 APR_BRIGADE_INSERT_TAIL(b, e);
3328 /* We can only return at most what we read. */
3329 if (len < readbytes) {
3333 apr_brigade_partition(ctx->b, readbytes, &e);
3335 /* Must do split before CONCAT */
3336 newbb = apr_brigade_split(ctx->b, e);
3338 if (mode == AP_MODE_READBYTES) {
3339 APR_BRIGADE_CONCAT(b, ctx->b);
3341 else if (mode == AP_MODE_SPECULATIVE) {
3342 apr_bucket *copy_bucket;
3343 APR_BRIGADE_FOREACH(e, ctx->b) {
3344 rv = apr_bucket_copy(e, ©_bucket);
3345 if (rv != APR_SUCCESS) {
3348 APR_BRIGADE_INSERT_TAIL(b, copy_bucket);
3352 /* Take what was originally there and place it back on ctx->b */
3353 APR_BRIGADE_CONCAT(ctx->b, newbb);
3355 apr_brigade_length(b, 1, &total);
3360 /* we are reading a single LF line, e.g. the HTTP headers */
3361 rv = apr_brigade_split_line(b, ctx->b, block, HUGE_STRING_LEN);
3362 /* We should treat EAGAIN here the same as we do for EOF (brigade is
3363 * empty). We do this by returning whatever we have read. This may
3364 * or may not be bogus, but is consistent (for now) with EOF logic.
3366 if (APR_STATUS_IS_EAGAIN(rv)) {
3373 /* Default filter. This filter should almost always be used. Its only job
3374 * is to send the headers if they haven't already been sent, and then send
3377 #define MAX_IOVEC_TO_WRITE 16
3379 static apr_status_t core_output_filter(ap_filter_t *f, apr_bucket_brigade *b)
3383 core_net_rec *net = f->ctx;
3384 core_output_filter_ctx_t *ctx = net->out_ctx;
3387 ctx = apr_pcalloc(c->pool, sizeof(*ctx));
3391 /* If we have a saved brigade, concatenate the new brigade to it */
3393 APR_BRIGADE_CONCAT(ctx->b, b);
3398 /* Perform multiple passes over the brigade, sending batches of output
3399 to the connection. */
3401 apr_size_t nbytes = 0;
3402 apr_bucket *last_e = NULL; /* initialized for debugging */
3405 /* tail of brigade if we need another pass */
3406 apr_bucket_brigade *more = NULL;
3408 /* one group of iovecs per pass over the brigade */
3409 apr_size_t nvec = 0;
3410 apr_size_t nvec_trailers = 0;
3411 struct iovec vec[MAX_IOVEC_TO_WRITE];
3412 struct iovec vec_trailers[MAX_IOVEC_TO_WRITE];
3414 /* one file per pass over the brigade */
3415 apr_file_t *fd = NULL;
3416 apr_size_t flen = 0;
3417 apr_off_t foffset = 0;
3419 /* keep track of buckets that we've concatenated
3420 * to avoid small writes
3422 apr_bucket *last_merged_bucket = NULL;
3424 /* Iterate over the brigade: collect iovecs and/or a file */
3425 APR_BRIGADE_FOREACH(e, b) {
3426 /* keep track of the last bucket processed */
3428 if (APR_BUCKET_IS_EOS(e) || APR_BUCKET_IS_FLUSH(e)) {
3431 /* It doesn't make any sense to use sendfile for a file bucket
3432 * that represents 10 bytes.
3434 else if (APR_BUCKET_IS_FILE(e)
3435 && (e->length >= AP_MIN_SENDFILE_BYTES)) {
3436 apr_bucket_file *a = e->data;
3438 /* We can't handle more than one file bucket at a time
3439 * so we split here and send the file we have already
3443 more = apr_brigade_split(b, e);
3455 rv = apr_bucket_read(e, &str, &n, APR_BLOCK_READ);
3458 if (nvec == MAX_IOVEC_TO_WRITE) {
3459 /* woah! too many. buffer them up, for use later. */
3460 apr_bucket *temp, *next;
3461 apr_bucket_brigade *temp_brig;
3463 if (nbytes >= AP_MIN_BYTES_TO_WRITE) {
3464 /* We have enough data in the iovec
3465 * to justify doing a writev
3467 more = apr_brigade_split(b, e);
3471 /* Create a temporary brigade as a means
3472 * of concatenating a bunch of buckets together
3474 if (last_merged_bucket) {
3475 /* If we've concatenated together small
3476 * buckets already in a previous pass,
3477 * the initial buckets in this brigade
3478 * are heap buckets that may have extra
3479 * space left in them (because they
3480 * were created by apr_brigade_write()).
3481 * We can take advantage of this by
3482 * building the new temp brigade out of
3483 * these buckets, so that the content
3484 * in them doesn't have to be copied again.
3486 apr_bucket_brigade *bb;
3487 bb = apr_brigade_split(b,
3488 APR_BUCKET_NEXT(last_merged_bucket));
3493 temp_brig = apr_brigade_create(f->c->pool);
3495 temp = APR_BRIGADE_FIRST(b);
3498 rv = apr_bucket_read(temp, &str, &n, APR_BLOCK_READ);
3499 apr_brigade_write(temp_brig, NULL, NULL, str, n);
3501 temp = APR_BUCKET_NEXT(temp);
3502 apr_bucket_delete(d);
3506 temp = APR_BRIGADE_FIRST(temp_brig);
3507 APR_BUCKET_REMOVE(temp);
3508 APR_BRIGADE_INSERT_HEAD(b, temp);
3509 apr_bucket_read(temp, &str, &n, APR_BLOCK_READ);
3510 vec[nvec].iov_base = (char*) str;
3511 vec[nvec].iov_len = n;
3514 /* Just in case the temporary brigade has
3515 * multiple buckets, recover the rest of
3516 * them and put them in the brigade that
3519 for (next = APR_BRIGADE_FIRST(temp_brig);
3520 next != APR_BRIGADE_SENTINEL(temp_brig);
3521 next = APR_BRIGADE_FIRST(temp_brig)) {
3522 APR_BUCKET_REMOVE(next);
3523 APR_BUCKET_INSERT_AFTER(temp, next);
3525 apr_bucket_read(next, &str, &n,
3527 vec[nvec].iov_base = (char*) str;
3528 vec[nvec].iov_len = n;
3531 apr_brigade_destroy(temp_brig);
3533 last_merged_bucket = temp;
3538 vec[nvec].iov_base = (char*) str;
3539 vec[nvec].iov_len = n;
3544 /* The bucket is a trailer to a file bucket */
3546 if (nvec_trailers == MAX_IOVEC_TO_WRITE) {
3547 /* woah! too many. stop now. */
3548 more = apr_brigade_split(b, e);
3551 vec_trailers[nvec_trailers].iov_base = (char*) str;
3552 vec_trailers[nvec_trailers].iov_len = n;
3561 /* Completed iterating over the brigades, now determine if we want
3562 * to buffer the brigade or send the brigade out on the network.
3566 * 1) we didn't see a file, we don't have more passes over the
3567 * brigade to perform, we haven't accumulated enough bytes to
3568 * send, AND we didn't stop at a FLUSH bucket.
3569 * (IOW, we will save away plain old bytes)
3571 * 2) we hit the EOS and have a keep-alive connection
3572 * (IOW, this response is a bit more complex, but we save it
3573 * with the hope of concatenating with another response)
3575 if ((!fd && !more &&
3576 (nbytes + flen < AP_MIN_BYTES_TO_WRITE) && !APR_BUCKET_IS_FLUSH(last_e))
3577 || (nbytes + flen < AP_MIN_BYTES_TO_WRITE && APR_BUCKET_IS_EOS(last_e) && c->keepalive)) {
3579 /* NEVER save an EOS in here. If we are saving a brigade with
3580 * an EOS bucket, then we are doing keepalive connections, and
3581 * we want to process to second request fully.
3583 if (APR_BUCKET_IS_EOS(last_e)) {
3584 apr_bucket *bucket = NULL;
3585 /* If we are in here, then this request is a keepalive. We
3586 * need to be certain that any data in a bucket is valid
3587 * after the request_pool is cleared.
3589 if (ctx->b == NULL) {
3590 ctx->b = apr_brigade_create(net->c->pool);
3593 APR_BRIGADE_FOREACH(bucket, b) {
3597 rv = apr_bucket_read(bucket, &str, &n, APR_BLOCK_READ);
3599 /* This apr_brigade_write does not use a flush function
3600 because we assume that we will not write enough data
3601 into it to cause a flush. However, if we *do* write
3602 "too much", then we could end up with transient
3603 buckets which would suck. This works for now, but is
3604 a bit shaky if changes are made to some of the
3605 buffering sizes. Let's do an assert to prevent
3606 potential future problems... */
3607 AP_DEBUG_ASSERT(AP_MIN_BYTES_TO_WRITE <=
3608 APR_BUCKET_BUFF_SIZE);
3609 if (rv != APR_SUCCESS) {
3610 ap_log_error(APLOG_MARK, APLOG_ERR, rv, c->base_server,
3611 "core_output_filter: Error reading from bucket.");
3614 apr_brigade_write(ctx->b, NULL, NULL, str, n);
3616 apr_brigade_destroy(b);
3619 ap_save_brigade(f, &ctx->b, &b, c->pool);
3626 #if APR_HAS_SENDFILE
3627 apr_int32_t flags = 0;
3630 memset(&hdtr, '\0', sizeof(hdtr));
3632 hdtr.numheaders = nvec;
3635 if (nvec_trailers) {
3636 hdtr.numtrailers = nvec_trailers;
3637 hdtr.trailers = vec_trailers;
3639 #if APR_HAS_SENDFILE
3640 if (!c->keepalive && APR_BUCKET_IS_EOS(last_e)) {
3641 /* Prepare the socket to be reused */
3642 flags |= APR_SENDFILE_DISCONNECT_SOCKET;
3644 rv = sendfile_it_all(net, /* the network information */
3645 fd, /* the file to send */
3646 &hdtr, /* header and trailer iovecs */
3647 foffset, /* offset in the file to begin
3649 flen, /* length of file */
3650 nbytes + flen, /* total length including
3652 flags); /* apr_sendfile flags */
3654 /* If apr_sendfile() returns APR_ENOTIMPL, call emulate_sendfile().
3655 * emulate_sendfile() is useful to enable the same Apache binary
3656 * distribution to support Windows NT/2000 (supports TransmitFile)
3657 * and Win95/98 (do not support TransmitFile)
3659 if (rv == APR_ENOTIMPL)
3662 apr_size_t unused_bytes_sent;
3663 rv = emulate_sendfile(net, fd, &hdtr, foffset, flen,
3664 &unused_bytes_sent);
3669 apr_size_t unused_bytes_sent;
3671 rv = writev_it_all(net->client_socket,
3673 nbytes, &unused_bytes_sent);
3676 apr_brigade_destroy(b);
3677 if (rv != APR_SUCCESS) {
3678 ap_log_error(APLOG_MARK, APLOG_INFO, rv, c->base_server,
3679 "core_output_filter: writing data to the network");
3681 apr_brigade_destroy(more);
3682 if (APR_STATUS_IS_ECONNABORTED(rv) ||
3683 APR_STATUS_IS_ECONNRESET(rv) ||
3684 APR_STATUS_IS_EPIPE(rv)) {
3692 } /* end while () */
3697 static int core_post_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)
3699 ap_set_version(pconf);
3703 static int core_open_logs(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)
3705 ap_open_logs(s, plog);
3709 static void core_insert_filter(request_rec *r)
3711 core_dir_config *conf = (core_dir_config *)
3712 ap_get_module_config(r->per_dir_config,
3714 const char *filter, *filters = conf->output_filters;
3717 while (*filters && (filter = ap_getword(r->pool, &filters, ';'))) {
3718 ap_add_output_filter(filter, NULL, r, r->connection);
3722 filters = conf->input_filters;
3724 while (*filters && (filter = ap_getword(r->pool, &filters, ';'))) {
3725 ap_add_input_filter(filter, NULL, r, r->connection);
3730 static apr_size_t num_request_notes = AP_NUM_STD_NOTES;
3732 static apr_status_t reset_request_notes(void *dummy)
3734 num_request_notes = AP_NUM_STD_NOTES;
3738 AP_DECLARE(apr_size_t) ap_register_request_note(void)
3740 apr_pool_cleanup_register(apr_global_hook_pool, NULL, reset_request_notes,
3741 apr_pool_cleanup_null);
3742 return num_request_notes++;
3745 AP_DECLARE(void **) ap_get_request_note(request_rec *r, apr_size_t note_num)
3747 core_request_config *req_cfg;
3748 if (note_num >= num_request_notes) {
3751 req_cfg = (core_request_config *)
3752 ap_get_module_config(r->request_config, &core_module);
3756 return &(req_cfg->notes[note_num]);
3759 static int core_create_req(request_rec *r)
3761 /* Alloc the config struct and the array of request notes in
3762 * a single block for efficiency
3764 core_request_config *req_cfg;
3765 req_cfg = apr_pcalloc(r->pool, sizeof(core_request_config) +
3766 sizeof(void *) * num_request_notes);
3767 req_cfg->notes = (void **)((char *)req_cfg + sizeof(core_request_config));
3769 core_request_config *main_req_cfg = (core_request_config *)
3770 ap_get_module_config(r->main->request_config, &core_module);
3771 req_cfg->bb = main_req_cfg->bb;
3774 req_cfg->bb = apr_brigade_create(r->pool);
3776 ap_set_module_config(r->request_config, &core_module, req_cfg);
3778 ap_add_input_filter_handle(ap_net_time_filter_handle,
3779 NULL, r, r->connection);
3781 /* Begin by presuming any module can make it's own path_info assumptions,
3782 * until some module interjects and changes the value.
3784 r->used_path_info = 2;
3788 static int core_create_proxy_req(request_rec *r, request_rec *pr)
3790 return core_create_req(pr);
3792 static conn_rec *core_create_conn(apr_pool_t *ptrans, server_rec *server,
3793 apr_socket_t *csd, long id, void *sbh)
3796 conn_rec *c = (conn_rec *) apr_pcalloc(ptrans, sizeof(conn_rec));
3799 (void) ap_update_child_status(c->sbh, SERVER_BUSY_READ, (request_rec *) NULL);
3801 /* Got a connection structure, so initialize what fields we can
3802 * (the rest are zeroed out by pcalloc).
3804 c->conn_config=ap_create_conn_config(ptrans);
3805 c->notes = apr_table_make(ptrans, 5);
3808 if ((rv = apr_socket_addr_get(&c->local_addr, APR_LOCAL, csd))
3810 ap_log_error(APLOG_MARK, APLOG_INFO, rv, server,
3811 "apr_socket_addr_get(APR_LOCAL)");
3812 apr_socket_close(csd);
3815 apr_sockaddr_ip_get(&c->local_ip, c->local_addr);
3816 if ((rv = apr_socket_addr_get(&c->remote_addr, APR_REMOTE, csd))
3818 ap_log_error(APLOG_MARK, APLOG_INFO, rv, server,
3819 "apr_socket_addr_get(APR_REMOTE)");
3820 apr_socket_close(csd);
3823 apr_sockaddr_ip_get(&c->remote_ip, c->remote_addr);
3824 c->base_server = server;
3829 static int core_pre_connection(conn_rec *c, void *csd)
3831 core_net_rec *net = apr_palloc(c->pool, sizeof(*net));
3833 #ifdef AP_MPM_DISABLE_NAGLE_ACCEPTED_SOCK
3834 /* BillS says perhaps this should be moved to the MPMs. Some OSes
3835 * allow listening socket attributes to be inherited by the
3836 * accept sockets which means this call only needs to be made
3837 * once on the listener
3839 ap_sock_disable_nagle(csd);
3843 net->out_ctx = NULL;
3844 net->client_socket = csd;
3846 ap_set_module_config(net->c->conn_config, &core_module, csd);
3847 ap_add_input_filter("CORE_IN", net, NULL, net->c);
3848 ap_add_output_filter("CORE", net, NULL, net->c);
3852 static void register_hooks(apr_pool_t *p)
3854 /* create_connection and install_transport_filters are
3855 * hooks that should always be APR_HOOK_REALLY_LAST to give other
3856 * modules the opportunity to install alternate network transports
3857 * and stop other functions from being run.
3859 ap_hook_create_connection(core_create_conn, NULL, NULL, APR_HOOK_REALLY_LAST);
3860 ap_hook_pre_connection(core_pre_connection, NULL,
3861 NULL, APR_HOOK_REALLY_LAST);
3863 ap_hook_post_config(core_post_config,NULL,NULL,APR_HOOK_REALLY_FIRST);
3864 ap_hook_translate_name(ap_core_translate,NULL,NULL,APR_HOOK_REALLY_LAST);
3865 ap_hook_map_to_storage(core_map_to_storage,NULL,NULL,APR_HOOK_REALLY_LAST);
3866 ap_hook_open_logs(core_open_logs,NULL,NULL,APR_HOOK_MIDDLE);
3867 ap_hook_handler(default_handler,NULL,NULL,APR_HOOK_REALLY_LAST);
3868 /* FIXME: I suspect we can eliminate the need for these do_nothings - Ben */
3869 ap_hook_type_checker(do_nothing,NULL,NULL,APR_HOOK_REALLY_LAST);
3870 ap_hook_fixups(core_override_type,NULL,NULL,APR_HOOK_REALLY_FIRST);
3871 ap_hook_fixups(core_filters_type,NULL,NULL,APR_HOOK_MIDDLE);
3872 ap_hook_access_checker(do_nothing,NULL,NULL,APR_HOOK_REALLY_LAST);
3873 ap_hook_create_request(core_create_req, NULL, NULL, APR_HOOK_MIDDLE);
3874 APR_OPTIONAL_HOOK(proxy, create_req, core_create_proxy_req, NULL, NULL,
3876 ap_hook_pre_mpm(ap_create_scoreboard, NULL, NULL, APR_HOOK_MIDDLE);
3878 /* register the core's insert_filter hook and register core-provided
3881 ap_hook_insert_filter(core_insert_filter, NULL, NULL, APR_HOOK_MIDDLE);
3883 ap_core_input_filter_handle =
3884 ap_register_input_filter("CORE_IN", core_input_filter,
3886 ap_net_time_filter_handle =
3887 ap_register_input_filter("NET_TIME", net_time_filter,
3889 ap_content_length_filter_handle =
3890 ap_register_output_filter("CONTENT_LENGTH", ap_content_length_filter,
3891 AP_FTYPE_HTTP_HEADER);
3892 ap_core_output_filter_handle =
3893 ap_register_output_filter("CORE", core_output_filter,
3895 ap_subreq_core_filter_handle =
3896 ap_register_output_filter("SUBREQ_CORE", ap_sub_req_output_filter,
3897 AP_FTYPE_HTTP_HEADER);
3898 ap_old_write_func = ap_register_output_filter("OLD_WRITE",
3899 ap_old_write_filter, AP_FTYPE_CONTENT - 10);
3902 AP_DECLARE_DATA module core_module = {
3903 STANDARD20_MODULE_STUFF,
3904 create_core_dir_config, /* create per-directory config structure */
3905 merge_core_dir_configs, /* merge per-directory config structures */
3906 create_core_server_config, /* create per-server config structure */
3907 merge_core_server_configs, /* merge per-server config structures */
3908 core_cmds, /* command apr_table_t */
3909 register_hooks /* register hooks */