+++ /dev/null
-/* Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements. See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "apr.h"
-#include "apr_strings.h"
-#include "apr_lib.h"
-#include "apr_fnmatch.h"
-#include "apr_hash.h"
-#include "apr_thread_proc.h" /* for RLIMIT stuff */
-#include "apr_hooks.h"
-
-#define APR_WANT_IOVEC
-#define APR_WANT_STRFUNC
-#define APR_WANT_MEMFUNC
-#include "apr_want.h"
-
-#define CORE_PRIVATE
-#include "ap_config.h"
-#include "httpd.h"
-#include "http_config.h"
-#include "http_core.h"
-#include "http_protocol.h" /* For index_of_response(). Grump. */
-#include "http_request.h"
-#include "http_vhost.h"
-#include "http_main.h" /* For the default_handler below... */
-#include "http_log.h"
-#include "rfc1413.h"
-#include "util_md5.h"
-#include "http_connection.h"
-#include "apr_buckets.h"
-#include "util_filter.h"
-#include "util_ebcdic.h"
-#include "mpm.h"
-#include "mpm_common.h"
-#include "scoreboard.h"
-#include "mod_core.h"
-#include "mod_proxy.h"
-#include "ap_listen.h"
-
-/* LimitRequestBody handling */
-#define AP_LIMIT_REQ_BODY_UNSET ((apr_off_t) -1)
-#define AP_DEFAULT_LIMIT_REQ_BODY ((apr_off_t) 0)
-
-/* LimitXMLRequestBody handling */
-#define AP_LIMIT_UNSET ((long) -1)
-#define AP_DEFAULT_LIMIT_XML_BODY ((size_t)1000000)
-
-#define AP_MIN_SENDFILE_BYTES (256)
-
-/* maximum include nesting level */
-#ifndef AP_MAX_INCLUDE_DEPTH
-#define AP_MAX_INCLUDE_DEPTH (128)
-#endif
-
-APR_HOOK_STRUCT(
- APR_HOOK_LINK(get_mgmt_items)
-)
-
-AP_IMPLEMENT_HOOK_RUN_ALL(int, get_mgmt_items,
- (apr_pool_t *p, const char *val, apr_hash_t *ht),
- (p, val, ht), OK, DECLINED)
-
-/* Server core module... This module provides support for really basic
- * server operations, including options and commands which control the
- * operation of other modules. Consider this the bureaucracy module.
- *
- * The core module also defines handlers, etc., do handle just enough
- * to allow a server with the core module ONLY to actually serve documents
- * (though it slaps DefaultType on all of 'em); this was useful in testing,
- * but may not be worth preserving.
- *
- * This file could almost be mod_core.c, except for the stuff which affects
- * the http_conf_globals.
- */
-
-/* Handles for core filters */
-AP_DECLARE_DATA ap_filter_rec_t *ap_subreq_core_filter_handle;
-AP_DECLARE_DATA ap_filter_rec_t *ap_core_output_filter_handle;
-AP_DECLARE_DATA ap_filter_rec_t *ap_content_length_filter_handle;
-AP_DECLARE_DATA ap_filter_rec_t *ap_net_time_filter_handle;
-AP_DECLARE_DATA ap_filter_rec_t *ap_core_input_filter_handle;
-
-/* magic pointer for ErrorDocument xxx "default" */
-static char errordocument_default;
-
-static void *create_core_dir_config(apr_pool_t *a, char *dir)
-{
- core_dir_config *conf;
- int i;
-
- conf = (core_dir_config *)apr_pcalloc(a, sizeof(core_dir_config));
-
- /* conf->r and conf->d[_*] are initialized by dirsection() or left NULL */
-
- conf->opts = dir ? OPT_UNSET : OPT_UNSET|OPT_ALL;
- conf->opts_add = conf->opts_remove = OPT_NONE;
- conf->override = dir ? OR_UNSET : OR_UNSET|OR_ALL;
-
- conf->content_md5 = 2;
- conf->accept_path_info = 3;
-
- conf->use_canonical_name = USE_CANONICAL_NAME_UNSET;
-
- conf->hostname_lookups = HOSTNAME_LOOKUP_UNSET;
- conf->do_rfc1413 = DEFAULT_RFC1413 | 2; /* set bit 1 to indicate default */
- conf->satisfy = apr_palloc(a, sizeof(*conf->satisfy) * METHODS);
- for (i = 0; i < METHODS; ++i) {
- conf->satisfy[i] = SATISFY_NOSPEC;
- }
-
-#ifdef RLIMIT_CPU
- conf->limit_cpu = NULL;
-#endif
-#if defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined(RLIMIT_AS)
- conf->limit_mem = NULL;
-#endif
-#ifdef RLIMIT_NPROC
- conf->limit_nproc = NULL;
-#endif
-
- conf->limit_req_body = AP_LIMIT_REQ_BODY_UNSET;
- conf->limit_xml_body = AP_LIMIT_UNSET;
- conf->sec_file = apr_array_make(a, 2, sizeof(ap_conf_vector_t *));
-
- conf->server_signature = srv_sig_unset;
-
- conf->add_default_charset = ADD_DEFAULT_CHARSET_UNSET;
- conf->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME;
-
- /* Overriding all negotiation
- */
- conf->mime_type = NULL;
- conf->handler = NULL;
- conf->output_filters = NULL;
- conf->input_filters = NULL;
-
- /*
- * Flag for use of inodes in ETags.
- */
- conf->etag_bits = ETAG_UNSET;
- conf->etag_add = ETAG_UNSET;
- conf->etag_remove = ETAG_UNSET;
-
- conf->enable_mmap = ENABLE_MMAP_UNSET;
- conf->enable_sendfile = ENABLE_SENDFILE_UNSET;
- conf->allow_encoded_slashes = 0;
-
- return (void *)conf;
-}
-
-/*
- * Overlay one hash table of ct_output_filters onto another
- */
-static void *merge_ct_filters(apr_pool_t *p,
- const void *key,
- apr_ssize_t klen,
- const void *overlay_val,
- const void *base_val,
- const void *data)
-{
- ap_filter_rec_t *cur;
- const ap_filter_rec_t *overlay_info = (const ap_filter_rec_t *)overlay_val;
- const ap_filter_rec_t *base_info = (const ap_filter_rec_t *)base_val;
-
- cur = NULL;
-
- while (overlay_info) {
- ap_filter_rec_t *new;
-
- new = apr_pcalloc(p, sizeof(ap_filter_rec_t));
- new->name = apr_pstrdup(p, overlay_info->name);
- new->next = cur;
- cur = new;
- overlay_info = overlay_info->next;
- }
-
- while (base_info) {
- ap_filter_rec_t *f;
- int found = 0;
-
- /* We can't have dups. */
- f = cur;
- while (f) {
- if (!strcasecmp(base_info->name, f->name)) {
- found = 1;
- break;
- }
-
- f = f->next;
- }
-
- if (!found) {
- f = apr_pcalloc(p, sizeof(ap_filter_rec_t));
- f->name = apr_pstrdup(p, base_info->name);
- f->next = cur;
- cur = f;
- }
-
- base_info = base_info->next;
- }
-
- return cur;
-}
-
-static void *merge_core_dir_configs(apr_pool_t *a, void *basev, void *newv)
-{
- core_dir_config *base = (core_dir_config *)basev;
- core_dir_config *new = (core_dir_config *)newv;
- core_dir_config *conf;
- int i;
-
- /* Create this conf by duplicating the base, replacing elements
- * (or creating copies for merging) where new-> values exist.
- */
- conf = (core_dir_config *)apr_palloc(a, sizeof(core_dir_config));
- memcpy(conf, base, sizeof(core_dir_config));
-
- conf->d = new->d;
- conf->d_is_fnmatch = new->d_is_fnmatch;
- conf->d_components = new->d_components;
- conf->r = new->r;
-
- if (new->opts & OPT_UNSET) {
- /* there was no explicit setting of new->opts, so we merge
- * preserve the invariant (opts_add & opts_remove) == 0
- */
- conf->opts_add = (conf->opts_add & ~new->opts_remove) | new->opts_add;
- conf->opts_remove = (conf->opts_remove & ~new->opts_add)
- | new->opts_remove;
- conf->opts = (conf->opts & ~conf->opts_remove) | conf->opts_add;
- if ((base->opts & OPT_INCNOEXEC) && (new->opts & OPT_INCLUDES)) {
- conf->opts = (conf->opts & ~OPT_INCNOEXEC) | OPT_INCLUDES;
- }
- }
- else {
- /* otherwise we just copy, because an explicit opts setting
- * overrides all earlier +/- modifiers
- */
- conf->opts = new->opts;
- conf->opts_add = new->opts_add;
- conf->opts_remove = new->opts_remove;
- }
-
- if (!(new->override & OR_UNSET)) {
- conf->override = new->override;
- }
-
- if (new->ap_default_type) {
- conf->ap_default_type = new->ap_default_type;
- }
-
- if (new->ap_auth_type) {
- conf->ap_auth_type = new->ap_auth_type;
- }
-
- if (new->ap_auth_name) {
- conf->ap_auth_name = new->ap_auth_name;
- }
-
- if (new->ap_requires) {
- conf->ap_requires = new->ap_requires;
- }
-
- if (conf->response_code_strings == NULL) {
- conf->response_code_strings = new->response_code_strings;
- }
- else if (new->response_code_strings != NULL) {
- /* If we merge, the merge-result must have it's own array
- */
- conf->response_code_strings = apr_palloc(a,
- sizeof(*conf->response_code_strings) * RESPONSE_CODES);
- memcpy(conf->response_code_strings, base->response_code_strings,
- sizeof(*conf->response_code_strings) * RESPONSE_CODES);
-
- for (i = 0; i < RESPONSE_CODES; ++i) {
- if (new->response_code_strings[i] != NULL) {
- conf->response_code_strings[i] = new->response_code_strings[i];
- }
- }
- }
- /* Otherwise we simply use the base->response_code_strings array
- */
-
- if (new->hostname_lookups != HOSTNAME_LOOKUP_UNSET) {
- conf->hostname_lookups = new->hostname_lookups;
- }
-
- if ((new->do_rfc1413 & 2) == 0) {
- conf->do_rfc1413 = new->do_rfc1413;
- }
-
- if ((new->content_md5 & 2) == 0) {
- conf->content_md5 = new->content_md5;
- }
-
- if (new->accept_path_info != 3) {
- conf->accept_path_info = new->accept_path_info;
- }
-
- if (new->use_canonical_name != USE_CANONICAL_NAME_UNSET) {
- conf->use_canonical_name = new->use_canonical_name;
- }
-
-#ifdef RLIMIT_CPU
- if (new->limit_cpu) {
- conf->limit_cpu = new->limit_cpu;
- }
-#endif
-
-#if defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined(RLIMIT_AS)
- if (new->limit_mem) {
- conf->limit_mem = new->limit_mem;
- }
-#endif
-
-#ifdef RLIMIT_NPROC
- if (new->limit_nproc) {
- conf->limit_nproc = new->limit_nproc;
- }
-#endif
-
- if (new->limit_req_body != AP_LIMIT_REQ_BODY_UNSET) {
- conf->limit_req_body = new->limit_req_body;
- }
-
- if (new->limit_xml_body != AP_LIMIT_UNSET)
- conf->limit_xml_body = new->limit_xml_body;
- else
- conf->limit_xml_body = base->limit_xml_body;
-
- if (!conf->sec_file) {
- conf->sec_file = new->sec_file;
- }
- else if (new->sec_file) {
- /* If we merge, the merge-result must have it's own array
- */
- conf->sec_file = apr_array_append(a, base->sec_file, new->sec_file);
- }
- /* Otherwise we simply use the base->sec_file array
- */
-
- /* use a separate ->satisfy[] array either way */
- conf->satisfy = apr_palloc(a, sizeof(*conf->satisfy) * METHODS);
- for (i = 0; i < METHODS; ++i) {
- if (new->satisfy[i] != SATISFY_NOSPEC) {
- conf->satisfy[i] = new->satisfy[i];
- } else {
- conf->satisfy[i] = base->satisfy[i];
- }
- }
-
- if (new->server_signature != srv_sig_unset) {
- conf->server_signature = new->server_signature;
- }
-
- if (new->add_default_charset != ADD_DEFAULT_CHARSET_UNSET) {
- conf->add_default_charset = new->add_default_charset;
- conf->add_default_charset_name = new->add_default_charset_name;
- }
-
- /* Overriding all negotiation
- */
- if (new->mime_type) {
- conf->mime_type = new->mime_type;
- }
-
- if (new->handler) {
- conf->handler = new->handler;
- }
-
- if (new->output_filters) {
- conf->output_filters = new->output_filters;
- }
-
- if (new->input_filters) {
- conf->input_filters = new->input_filters;
- }
-
- if (conf->ct_output_filters && new->ct_output_filters) {
- conf->ct_output_filters = apr_hash_merge(a,
- new->ct_output_filters,
- conf->ct_output_filters,
- merge_ct_filters,
- NULL);
- }
- else if (new->ct_output_filters) {
- conf->ct_output_filters = apr_hash_copy(a, new->ct_output_filters);
- }
- else if (conf->ct_output_filters) {
- /* That memcpy above isn't enough. */
- conf->ct_output_filters = apr_hash_copy(a, base->ct_output_filters);
- }
-
- /*
- * Now merge the setting of the FileETag directive.
- */
- if (new->etag_bits == ETAG_UNSET) {
- conf->etag_add =
- (conf->etag_add & (~ new->etag_remove)) | new->etag_add;
- conf->etag_remove =
- (conf->opts_remove & (~ new->etag_add)) | new->etag_remove;
- conf->etag_bits =
- (conf->etag_bits & (~ conf->etag_remove)) | conf->etag_add;
- }
- else {
- conf->etag_bits = new->etag_bits;
- conf->etag_add = new->etag_add;
- conf->etag_remove = new->etag_remove;
- }
-
- if (conf->etag_bits != ETAG_NONE) {
- conf->etag_bits &= (~ ETAG_NONE);
- }
-
- if (new->enable_mmap != ENABLE_MMAP_UNSET) {
- conf->enable_mmap = new->enable_mmap;
- }
-
- if (new->enable_sendfile != ENABLE_SENDFILE_UNSET) {
- conf->enable_sendfile = new->enable_sendfile;
- }
-
- conf->allow_encoded_slashes = new->allow_encoded_slashes;
-
- return (void*)conf;
-}
-
-static void *create_core_server_config(apr_pool_t *a, server_rec *s)
-{
- core_server_config *conf;
- int is_virtual = s->is_virtual;
-
- conf = (core_server_config *)apr_pcalloc(a, sizeof(core_server_config));
-
-#ifdef GPROF
- conf->gprof_dir = NULL;
-#endif
-
- conf->access_name = is_virtual ? NULL : DEFAULT_ACCESS_FNAME;
- conf->ap_document_root = is_virtual ? NULL : DOCUMENT_LOCATION;
- conf->sec_dir = apr_array_make(a, 40, sizeof(ap_conf_vector_t *));
- conf->sec_url = apr_array_make(a, 40, sizeof(ap_conf_vector_t *));
-
- /* recursion stopper */
- conf->redirect_limit = 0; /* 0 == unset */
- conf->subreq_limit = 0;
-
- conf->trace_enable = AP_TRACE_UNSET;
-
- return (void *)conf;
-}
-
-static void *merge_core_server_configs(apr_pool_t *p, void *basev, void *virtv)
-{
- core_server_config *base = (core_server_config *)basev;
- core_server_config *virt = (core_server_config *)virtv;
- core_server_config *conf;
-
- conf = (core_server_config *)apr_palloc(p, sizeof(core_server_config));
- memcpy(conf, virt, sizeof(core_server_config));
-
- if (!conf->access_name) {
- conf->access_name = base->access_name;
- }
-
- if (!conf->ap_document_root) {
- conf->ap_document_root = base->ap_document_root;
- }
-
- conf->sec_dir = apr_array_append(p, base->sec_dir, virt->sec_dir);
- conf->sec_url = apr_array_append(p, base->sec_url, virt->sec_url);
-
- conf->redirect_limit = virt->redirect_limit
- ? virt->redirect_limit
- : base->redirect_limit;
-
- conf->subreq_limit = virt->subreq_limit
- ? virt->subreq_limit
- : base->subreq_limit;
-
- conf->trace_enable = (virt->trace_enable != AP_TRACE_UNSET)
- ? virt->trace_enable
- : base->trace_enable;
-
- return conf;
-}
-
-/* Add per-directory configuration entry (for <directory> section);
- * these are part of the core server config.
- */
-
-AP_CORE_DECLARE(void) ap_add_per_dir_conf(server_rec *s, void *dir_config)
-{
- core_server_config *sconf = ap_get_module_config(s->module_config,
- &core_module);
- void **new_space = (void **)apr_array_push(sconf->sec_dir);
-
- *new_space = dir_config;
-}
-
-AP_CORE_DECLARE(void) ap_add_per_url_conf(server_rec *s, void *url_config)
-{
- core_server_config *sconf = ap_get_module_config(s->module_config,
- &core_module);
- void **new_space = (void **)apr_array_push(sconf->sec_url);
-
- *new_space = url_config;
-}
-
-AP_CORE_DECLARE(void) ap_add_file_conf(core_dir_config *conf, void *url_config)
-{
- void **new_space = (void **)apr_array_push(conf->sec_file);
-
- *new_space = url_config;
-}
-
-/* We need to do a stable sort, qsort isn't stable. So to make it stable
- * we'll be maintaining the original index into the list, and using it
- * as the minor key during sorting. The major key is the number of
- * components (where the root component is zero).
- */
-struct reorder_sort_rec {
- ap_conf_vector_t *elt;
- int orig_index;
-};
-
-static int reorder_sorter(const void *va, const void *vb)
-{
- const struct reorder_sort_rec *a = va;
- const struct reorder_sort_rec *b = vb;
- core_dir_config *core_a;
- core_dir_config *core_b;
-
- core_a = ap_get_module_config(a->elt, &core_module);
- core_b = ap_get_module_config(b->elt, &core_module);
-
- /* a regex always sorts after a non-regex
- */
- if (!core_a->r && core_b->r) {
- return -1;
- }
- else if (core_a->r && !core_b->r) {
- return 1;
- }
-
- /* we always sort next by the number of components
- */
- if (core_a->d_components < core_b->d_components) {
- return -1;
- }
- else if (core_a->d_components > core_b->d_components) {
- return 1;
- }
-
- /* They have the same number of components, we now have to compare
- * the minor key to maintain the original order (from the config.)
- */
- return a->orig_index - b->orig_index;
-}
-
-void ap_core_reorder_directories(apr_pool_t *p, server_rec *s)
-{
- core_server_config *sconf;
- apr_array_header_t *sec_dir;
- struct reorder_sort_rec *sortbin;
- int nelts;
- ap_conf_vector_t **elts;
- int i;
- apr_pool_t *tmp;
-
- sconf = ap_get_module_config(s->module_config, &core_module);
- sec_dir = sconf->sec_dir;
- nelts = sec_dir->nelts;
- elts = (ap_conf_vector_t **)sec_dir->elts;
-
- if (!nelts) {
- /* simple case of already being sorted... */
- /* We're not checking this condition to be fast... we're checking
- * it to avoid trying to palloc zero bytes, which can trigger some
- * memory debuggers to barf
- */
- return;
- }
-
- /* we have to allocate tmp space to do a stable sort */
- apr_pool_create(&tmp, p);
- sortbin = apr_palloc(tmp, sec_dir->nelts * sizeof(*sortbin));
- for (i = 0; i < nelts; ++i) {
- sortbin[i].orig_index = i;
- sortbin[i].elt = elts[i];
- }
-
- qsort(sortbin, nelts, sizeof(*sortbin), reorder_sorter);
-
- /* and now copy back to the original array */
- for (i = 0; i < nelts; ++i) {
- elts[i] = sortbin[i].elt;
- }
-
- apr_pool_destroy(tmp);
-}
-
-/*****************************************************************
- *
- * There are some elements of the core config structures in which
- * other modules have a legitimate interest (this is ugly, but necessary
- * to preserve NCSA back-compatibility). So, we have a bunch of accessors
- * here...
- */
-
-AP_DECLARE(int) ap_allow_options(request_rec *r)
-{
- core_dir_config *conf =
- (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module);
-
- return conf->opts;
-}
-
-AP_DECLARE(int) ap_allow_overrides(request_rec *r)
-{
- core_dir_config *conf;
- conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
- &core_module);
-
- return conf->override;
-}
-
-AP_DECLARE(const char *) ap_auth_type(request_rec *r)
-{
- core_dir_config *conf;
-
- conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
- &core_module);
-
- return conf->ap_auth_type;
-}
-
-AP_DECLARE(const char *) ap_auth_name(request_rec *r)
-{
- core_dir_config *conf;
-
- conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
- &core_module);
-
- return conf->ap_auth_name;
-}
-
-AP_DECLARE(const char *) ap_default_type(request_rec *r)
-{
- core_dir_config *conf;
-
- conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
- &core_module);
-
- return conf->ap_default_type
- ? conf->ap_default_type
- : DEFAULT_CONTENT_TYPE;
-}
-
-AP_DECLARE(const char *) ap_document_root(request_rec *r) /* Don't use this! */
-{
- core_server_config *conf;
-
- conf = (core_server_config *)ap_get_module_config(r->server->module_config,
- &core_module);
-
- return conf->ap_document_root;
-}
-
-AP_DECLARE(const apr_array_header_t *) ap_requires(request_rec *r)
-{
- core_dir_config *conf;
-
- conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
- &core_module);
-
- return conf->ap_requires;
-}
-
-AP_DECLARE(int) ap_satisfies(request_rec *r)
-{
- core_dir_config *conf;
-
- conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
- &core_module);
-
- return conf->satisfy[r->method_number];
-}
-
-/* Should probably just get rid of this... the only code that cares is
- * part of the core anyway (and in fact, it isn't publicised to other
- * modules).
- */
-
-char *ap_response_code_string(request_rec *r, int error_index)
-{
- core_dir_config *dirconf;
- core_request_config *reqconf;
-
- /* check for string registered via ap_custom_response() first */
- reqconf = (core_request_config *)ap_get_module_config(r->request_config,
- &core_module);
- if (reqconf->response_code_strings != NULL &&
- reqconf->response_code_strings[error_index] != NULL) {
- return reqconf->response_code_strings[error_index];
- }
-
- /* check for string specified via ErrorDocument */
- dirconf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
- &core_module);
-
- if (dirconf->response_code_strings == NULL) {
- return NULL;
- }
-
- if (dirconf->response_code_strings[error_index] == &errordocument_default) {
- return NULL;
- }
-
- return dirconf->response_code_strings[error_index];
-}
-
-
-/* Code from Harald Hanche-Olsen <hanche@imf.unit.no> */
-static APR_INLINE void do_double_reverse (conn_rec *conn)
-{
- apr_sockaddr_t *sa;
- apr_status_t rv;
-
- if (conn->double_reverse) {
- /* already done */
- return;
- }
-
- if (conn->remote_host == NULL || conn->remote_host[0] == '\0') {
- /* single reverse failed, so don't bother */
- conn->double_reverse = -1;
- return;
- }
-
- rv = apr_sockaddr_info_get(&sa, conn->remote_host, APR_UNSPEC, 0, 0, conn->pool);
- if (rv == APR_SUCCESS) {
- while (sa) {
- if (apr_sockaddr_equal(sa, conn->remote_addr)) {
- conn->double_reverse = 1;
- return;
- }
-
- sa = sa->next;
- }
- }
-
- conn->double_reverse = -1;
-}
-
-AP_DECLARE(const char *) ap_get_remote_host(conn_rec *conn, void *dir_config,
- int type, int *str_is_ip)
-{
- int hostname_lookups;
-
- if (str_is_ip) { /* if caller wants to know */
- *str_is_ip = 0;
- }
-
- /* If we haven't checked the host name, and we want to */
- if (dir_config) {
- hostname_lookups =
- ((core_dir_config *)ap_get_module_config(dir_config, &core_module))
- ->hostname_lookups;
-
- if (hostname_lookups == HOSTNAME_LOOKUP_UNSET) {
- hostname_lookups = HOSTNAME_LOOKUP_OFF;
- }
- }
- else {
- /* the default */
- hostname_lookups = HOSTNAME_LOOKUP_OFF;
- }
-
- if (type != REMOTE_NOLOOKUP
- && conn->remote_host == NULL
- && (type == REMOTE_DOUBLE_REV
- || hostname_lookups != HOSTNAME_LOOKUP_OFF)) {
-
- if (apr_getnameinfo(&conn->remote_host, conn->remote_addr, 0)
- == APR_SUCCESS) {
- ap_str_tolower(conn->remote_host);
-
- if (hostname_lookups == HOSTNAME_LOOKUP_DOUBLE) {
- do_double_reverse(conn);
- if (conn->double_reverse != 1) {
- conn->remote_host = NULL;
- }
- }
- }
-
- /* if failed, set it to the NULL string to indicate error */
- if (conn->remote_host == NULL) {
- conn->remote_host = "";
- }
- }
-
- if (type == REMOTE_DOUBLE_REV) {
- do_double_reverse(conn);
- if (conn->double_reverse == -1) {
- return NULL;
- }
- }
-
- /*
- * Return the desired information; either the remote DNS name, if found,
- * or either NULL (if the hostname was requested) or the IP address
- * (if any identifier was requested).
- */
- if (conn->remote_host != NULL && conn->remote_host[0] != '\0') {
- return conn->remote_host;
- }
- else {
- if (type == REMOTE_HOST || type == REMOTE_DOUBLE_REV) {
- return NULL;
- }
- else {
- if (str_is_ip) { /* if caller wants to know */
- *str_is_ip = 1;
- }
-
- return conn->remote_ip;
- }
- }
-}
-
-AP_DECLARE(const char *) ap_get_remote_logname(request_rec *r)
-{
- core_dir_config *dir_conf;
-
- if (r->connection->remote_logname != NULL) {
- return r->connection->remote_logname;
- }
-
- /* If we haven't checked the identity, and we want to */
- dir_conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
- &core_module);
-
- if (dir_conf->do_rfc1413 & 1) {
- return ap_rfc1413(r->connection, r->server);
- }
- else {
- return NULL;
- }
-}
-
-/* There are two options regarding what the "name" of a server is. The
- * "canonical" name as defined by ServerName and Port, or the "client's
- * name" as supplied by a possible Host: header or full URI. We never
- * trust the port passed in the client's headers, we always use the
- * port of the actual socket.
- *
- * The DNS option to UseCanonicalName causes this routine to do a
- * reverse lookup on the local IP address of the connection and use
- * that for the ServerName. This makes its value more reliable while
- * at the same time allowing Demon's magic virtual hosting to work.
- * The assumption is that DNS lookups are sufficiently quick...
- * -- fanf 1998-10-03
- */
-AP_DECLARE(const char *) ap_get_server_name(request_rec *r)
-{
- conn_rec *conn = r->connection;
- core_dir_config *d;
-
- d = (core_dir_config *)ap_get_module_config(r->per_dir_config,
- &core_module);
-
- if (d->use_canonical_name == USE_CANONICAL_NAME_OFF) {
- return r->hostname ? r->hostname : r->server->server_hostname;
- }
-
- if (d->use_canonical_name == USE_CANONICAL_NAME_DNS) {
- if (conn->local_host == NULL) {
- if (apr_getnameinfo(&conn->local_host,
- conn->local_addr, 0) != APR_SUCCESS)
- conn->local_host = apr_pstrdup(conn->pool,
- r->server->server_hostname);
- else {
- ap_str_tolower(conn->local_host);
- }
- }
-
- return conn->local_host;
- }
-
- /* default */
- return r->server->server_hostname;
-}
-
-/*
- * Get the current server name from the request for the purposes
- * of using in a URL. If the server name is an IPv6 literal
- * address, it will be returned in URL format (e.g., "[fe80::1]").
- */
-static const char *get_server_name_for_url(request_rec *r)
-{
- const char *plain_server_name = ap_get_server_name(r);
-
-#if APR_HAVE_IPV6
- if (ap_strchr_c(plain_server_name, ':')) { /* IPv6 literal? */
- return apr_psprintf(r->pool, "[%s]", plain_server_name);
- }
-#endif
- return plain_server_name;
-}
-
-AP_DECLARE(apr_port_t) ap_get_server_port(const request_rec *r)
-{
- apr_port_t port;
- core_dir_config *d =
- (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module);
-
- if (d->use_canonical_name == USE_CANONICAL_NAME_OFF
- || d->use_canonical_name == USE_CANONICAL_NAME_DNS) {
-
- /* With UseCanonicalName off Apache will form self-referential
- * URLs using the hostname and port supplied by the client if
- * any are supplied (otherwise it will use the canonical name).
- */
- port = r->parsed_uri.port_str ? r->parsed_uri.port :
- r->server->port ? r->server->port :
- ap_default_port(r);
- }
- else { /* d->use_canonical_name == USE_CANONICAL_NAME_ON */
-
- /* With UseCanonicalName on (and in all versions prior to 1.3)
- * Apache will use the hostname and port specified in the
- * ServerName directive to construct a canonical name for the
- * server. (If no port was specified in the ServerName
- * directive, Apache uses the port supplied by the client if
- * any is supplied, and finally the default port for the protocol
- * used.
- */
- port = r->server->port ? r->server->port :
- r->connection->local_addr->port ? r->connection->local_addr->port :
- ap_default_port(r);
- }
-
- /* default */
- return port;
-}
-
-AP_DECLARE(char *) ap_construct_url(apr_pool_t *p, const char *uri,
- request_rec *r)
-{
- unsigned port = ap_get_server_port(r);
- const char *host = get_server_name_for_url(r);
-
- if (ap_is_default_port(port, r)) {
- return apr_pstrcat(p, ap_http_method(r), "://", host, uri, NULL);
- }
-
- return apr_psprintf(p, "%s://%s:%u%s", ap_http_method(r), host, port, uri);
-}
-
-AP_DECLARE(apr_off_t) ap_get_limit_req_body(const request_rec *r)
-{
- core_dir_config *d =
- (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module);
-
- if (d->limit_req_body == AP_LIMIT_REQ_BODY_UNSET) {
- return AP_DEFAULT_LIMIT_REQ_BODY;
- }
-
- return d->limit_req_body;
-}
-
-
-/*****************************************************************
- *
- * Commands... this module handles almost all of the NCSA httpd.conf
- * commands, but most of the old srm.conf is in the the modules.
- */
-
-
-/* returns a parent if it matches the given directive */
-static const ap_directive_t * find_parent(const ap_directive_t *dirp,
- const char *what)
-{
- while (dirp->parent != NULL) {
- dirp = dirp->parent;
-
- /* ### it would be nice to have atom-ized directives */
- if (strcasecmp(dirp->directive, what) == 0)
- return dirp;
- }
-
- return NULL;
-}
-
-AP_DECLARE(const char *) ap_check_cmd_context(cmd_parms *cmd,
- unsigned forbidden)
-{
- const char *gt = (cmd->cmd->name[0] == '<'
- && cmd->cmd->name[strlen(cmd->cmd->name)-1] != '>')
- ? ">" : "";
- const ap_directive_t *found;
-
- if ((forbidden & NOT_IN_VIRTUALHOST) && cmd->server->is_virtual) {
- return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
- " cannot occur within <VirtualHost> section", NULL);
- }
-
- if ((forbidden & NOT_IN_LIMIT) && cmd->limited != -1) {
- return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
- " cannot occur within <Limit> section", NULL);
- }
-
- if ((forbidden & NOT_IN_DIR_LOC_FILE) == NOT_IN_DIR_LOC_FILE) {
- if (cmd->path != NULL) {
- return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
- " cannot occur within <Directory/Location/Files> "
- "section", NULL);
- }
- if (cmd->cmd->req_override & EXEC_ON_READ) {
- /* EXEC_ON_READ must be NOT_IN_DIR_LOC_FILE, if not, it will
- * (deliberately) segfault below in the individual tests...
- */
- return NULL;
- }
- }
-
- if (((forbidden & NOT_IN_DIRECTORY)
- && ((found = find_parent(cmd->directive, "<Directory"))
- || (found = find_parent(cmd->directive, "<DirectoryMatch"))))
- || ((forbidden & NOT_IN_LOCATION)
- && ((found = find_parent(cmd->directive, "<Location"))
- || (found = find_parent(cmd->directive, "<LocationMatch"))))
- || ((forbidden & NOT_IN_FILES)
- && ((found = find_parent(cmd->directive, "<Files"))
- || (found = find_parent(cmd->directive, "<FilesMatch"))))) {
- return apr_pstrcat(cmd->pool, cmd->cmd->name, gt,
- " cannot occur within ", found->directive,
- "> section", NULL);
- }
-
- return NULL;
-}
-
-static const char *set_access_name(cmd_parms *cmd, void *dummy,
- const char *arg)
-{
- void *sconf = cmd->server->module_config;
- core_server_config *conf = ap_get_module_config(sconf, &core_module);
-
- const char *err = ap_check_cmd_context(cmd,
- NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
- if (err != NULL) {
- return err;
- }
-
- conf->access_name = apr_pstrdup(cmd->pool, arg);
- return NULL;
-}
-
-#ifdef GPROF
-static const char *set_gprof_dir(cmd_parms *cmd, void *dummy, const char *arg)
-{
- void *sconf = cmd->server->module_config;
- core_server_config *conf = ap_get_module_config(sconf, &core_module);
-
- const char *err = ap_check_cmd_context(cmd,
- NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
- if (err != NULL) {
- return err;
- }
-
- conf->gprof_dir = apr_pstrdup(cmd->pool, arg);
- return NULL;
-}
-#endif /*GPROF*/
-
-static const char *set_add_default_charset(cmd_parms *cmd,
- void *d_, const char *arg)
-{
- core_dir_config *d = d_;
-
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
- if (err != NULL) {
- return err;
- }
-
- if (!strcasecmp(arg, "Off")) {
- d->add_default_charset = ADD_DEFAULT_CHARSET_OFF;
- }
- else if (!strcasecmp(arg, "On")) {
- d->add_default_charset = ADD_DEFAULT_CHARSET_ON;
- d->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME;
- }
- else {
- d->add_default_charset = ADD_DEFAULT_CHARSET_ON;
- d->add_default_charset_name = arg;
- }
-
- return NULL;
-}
-
-static const char *set_document_root(cmd_parms *cmd, void *dummy,
- const char *arg)
-{
- void *sconf = cmd->server->module_config;
- core_server_config *conf = ap_get_module_config(sconf, &core_module);
-
- const char *err = ap_check_cmd_context(cmd,
- NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
- if (err != NULL) {
- return err;
- }
-
- /* TODO: ap_configtestonly && ap_docrootcheck && */
- /* XXX Shouldn't this be relative to ServerRoot ??? */
- if (apr_filepath_merge((char**)&conf->ap_document_root, NULL, arg,
- APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS
- || !ap_is_directory(cmd->pool, arg)) {
- if (cmd->server->is_virtual) {
- ap_log_perror(APLOG_MARK, APLOG_STARTUP, 0,
- cmd->pool,
- "Warning: DocumentRoot [%s] does not exist",
- arg);
- conf->ap_document_root = arg;
- }
- else {
- return "DocumentRoot must be a directory";
- }
- }
- return NULL;
-}
-
-AP_DECLARE(void) ap_custom_response(request_rec *r, int status,
- const char *string)
-{
- core_request_config *conf =
- ap_get_module_config(r->request_config, &core_module);
- int idx;
-
- if (conf->response_code_strings == NULL) {
- conf->response_code_strings =
- apr_pcalloc(r->pool,
- sizeof(*conf->response_code_strings) * RESPONSE_CODES);
- }
-
- idx = ap_index_of_response(status);
-
- conf->response_code_strings[idx] =
- ((ap_is_url(string) || (*string == '/')) && (*string != '"')) ?
- apr_pstrdup(r->pool, string) : apr_pstrcat(r->pool, "\"", string, NULL);
-}
-
-static const char *set_error_document(cmd_parms *cmd, void *conf_,
- const char *errno_str, const char *msg)
-{
- core_dir_config *conf = conf_;
- int error_number, index_number, idx500;
- enum { MSG, LOCAL_PATH, REMOTE_PATH } what = MSG;
-
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
- if (err != NULL) {
- return err;
- }
-
- /* 1st parameter should be a 3 digit number, which we recognize;
- * convert it into an array index
- */
- error_number = atoi(errno_str);
- idx500 = ap_index_of_response(HTTP_INTERNAL_SERVER_ERROR);
-
- if (error_number == HTTP_INTERNAL_SERVER_ERROR) {
- index_number = idx500;
- }
- else if ((index_number = ap_index_of_response(error_number)) == idx500) {
- return apr_pstrcat(cmd->pool, "Unsupported HTTP response code ",
- errno_str, NULL);
- }
-
- /* Heuristic to determine second argument. */
- if (ap_strchr_c(msg,' '))
- what = MSG;
- else if (msg[0] == '/')
- what = LOCAL_PATH;
- else if (ap_is_url(msg))
- what = REMOTE_PATH;
- else
- what = MSG;
-
- /* The entry should be ignored if it is a full URL for a 401 error */
-
- if (error_number == 401 && what == REMOTE_PATH) {
- ap_log_error(APLOG_MARK, APLOG_NOTICE, 0, cmd->server,
- "cannot use a full URL in a 401 ErrorDocument "
- "directive --- ignoring!");
- }
- else { /* Store it... */
- if (conf->response_code_strings == NULL) {
- conf->response_code_strings =
- apr_pcalloc(cmd->pool,
- sizeof(*conf->response_code_strings) *
- RESPONSE_CODES);
- }
-
- if (strcmp(msg, "default") == 0) {
- /* special case: ErrorDocument 404 default restores the
- * canned server error response
- */
- conf->response_code_strings[index_number] = &errordocument_default;
- }
- else {
- /* hack. Prefix a " if it is a msg; as that is what
- * http_protocol.c relies on to distinguish between
- * a msg and a (local) path.
- */
- conf->response_code_strings[index_number] = (what == MSG) ?
- apr_pstrcat(cmd->pool, "\"",msg,NULL) :
- apr_pstrdup(cmd->pool, msg);
- }
- }
-
- return NULL;
-}
-
-static const char *set_override(cmd_parms *cmd, void *d_, const char *l)
-{
- core_dir_config *d = d_;
- char *w;
-
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
- if (err != NULL) {
- return err;
- }
-
- d->override = OR_NONE;
- while (l[0]) {
- w = ap_getword_conf(cmd->pool, &l);
- if (!strcasecmp(w, "Limit")) {
- d->override |= OR_LIMIT;
- }
- else if (!strcasecmp(w, "Options")) {
- d->override |= OR_OPTIONS;
- }
- else if (!strcasecmp(w, "FileInfo")) {
- d->override |= OR_FILEINFO;
- }
- else if (!strcasecmp(w, "AuthConfig")) {
- d->override |= OR_AUTHCFG;
- }
- else if (!strcasecmp(w, "Indexes")) {
- d->override |= OR_INDEXES;
- }
- else if (!strcasecmp(w, "None")) {
- d->override = OR_NONE;
- }
- else if (!strcasecmp(w, "All")) {
- d->override = OR_ALL;
- }
- else {
- return apr_pstrcat(cmd->pool, "Illegal override option ", w, NULL);
- }
-
- d->override &= ~OR_UNSET;
- }
-
- return NULL;
-}
-
-static const char *set_options(cmd_parms *cmd, void *d_, const char *l)
-{
- core_dir_config *d = d_;
- allow_options_t opt;
- int first = 1;
- char action;
-
- while (l[0]) {
- char *w = ap_getword_conf(cmd->pool, &l);
- action = '\0';
-
- if (*w == '+' || *w == '-') {
- action = *(w++);
- }
- else if (first) {
- d->opts = OPT_NONE;
- first = 0;
- }
-
- if (!strcasecmp(w, "Indexes")) {
- opt = OPT_INDEXES;
- }
- else if (!strcasecmp(w, "Includes")) {
- opt = OPT_INCLUDES;
- }
- else if (!strcasecmp(w, "IncludesNOEXEC")) {
- opt = (OPT_INCLUDES | OPT_INCNOEXEC);
- }
- else if (!strcasecmp(w, "FollowSymLinks")) {
- opt = OPT_SYM_LINKS;
- }
- else if (!strcasecmp(w, "SymLinksIfOwnerMatch")) {
- opt = OPT_SYM_OWNER;
- }
- else if (!strcasecmp(w, "execCGI")) {
- opt = OPT_EXECCGI;
- }
- else if (!strcasecmp(w, "MultiViews")) {
- opt = OPT_MULTI;
- }
- else if (!strcasecmp(w, "RunScripts")) { /* AI backcompat. Yuck */
- opt = OPT_MULTI|OPT_EXECCGI;
- }
- else if (!strcasecmp(w, "None")) {
- opt = OPT_NONE;
- }
- else if (!strcasecmp(w, "All")) {
- opt = OPT_ALL;
- }
- else {
- return apr_pstrcat(cmd->pool, "Illegal option ", w, NULL);
- }
-
- /* we ensure the invariant (d->opts_add & d->opts_remove) == 0 */
- if (action == '-') {
- d->opts_remove |= opt;
- d->opts_add &= ~opt;
- d->opts &= ~opt;
- }
- else if (action == '+') {
- d->opts_add |= opt;
- d->opts_remove &= ~opt;
- d->opts |= opt;
- }
- else {
- d->opts |= opt;
- }
- }
-
- return NULL;
-}
-
-/*
- * Note what data should be used when forming file ETag values.
- * It would be nicer to do this as an ITERATE, but then we couldn't
- * remember the +/- state properly.
- */
-static const char *set_etag_bits(cmd_parms *cmd, void *mconfig,
- const char *args_p)
-{
- core_dir_config *cfg;
- etag_components_t bit;
- char action;
- char *token;
- const char *args;
- int valid;
- int first;
- int explicit;
-
- cfg = (core_dir_config *)mconfig;
-
- args = args_p;
- first = 1;
- explicit = 0;
- while (args[0] != '\0') {
- action = '*';
- bit = ETAG_UNSET;
- valid = 1;
- token = ap_getword_conf(cmd->pool, &args);
- if ((*token == '+') || (*token == '-')) {
- action = *token;
- token++;
- }
- else {
- /*
- * The occurrence of an absolute setting wipes
- * out any previous relative ones. The first such
- * occurrence forgets any inherited ones, too.
- */
- if (first) {
- cfg->etag_bits = ETAG_UNSET;
- cfg->etag_add = ETAG_UNSET;
- cfg->etag_remove = ETAG_UNSET;
- first = 0;
- }
- }
-
- if (strcasecmp(token, "None") == 0) {
- if (action != '*') {
- valid = 0;
- }
- else {
- cfg->etag_bits = bit = ETAG_NONE;
- explicit = 1;
- }
- }
- else if (strcasecmp(token, "All") == 0) {
- if (action != '*') {
- valid = 0;
- }
- else {
- explicit = 1;
- cfg->etag_bits = bit = ETAG_ALL;
- }
- }
- else if (strcasecmp(token, "Size") == 0) {
- bit = ETAG_SIZE;
- }
- else if ((strcasecmp(token, "LMTime") == 0)
- || (strcasecmp(token, "MTime") == 0)
- || (strcasecmp(token, "LastModified") == 0)) {
- bit = ETAG_MTIME;
- }
- else if (strcasecmp(token, "INode") == 0) {
- bit = ETAG_INODE;
- }
- else {
- return apr_pstrcat(cmd->pool, "Unknown keyword '",
- token, "' for ", cmd->cmd->name,
- " directive", NULL);
- }
-
- if (! valid) {
- return apr_pstrcat(cmd->pool, cmd->cmd->name, " keyword '",
- token, "' cannot be used with '+' or '-'",
- NULL);
- }
-
- if (action == '+') {
- /*
- * Make sure it's in the 'add' list and absent from the
- * 'subtract' list.
- */
- cfg->etag_add |= bit;
- cfg->etag_remove &= (~ bit);
- }
- else if (action == '-') {
- cfg->etag_remove |= bit;
- cfg->etag_add &= (~ bit);
- }
- else {
- /*
- * Non-relative values wipe out any + or - values
- * accumulated so far.
- */
- cfg->etag_bits |= bit;
- cfg->etag_add = ETAG_UNSET;
- cfg->etag_remove = ETAG_UNSET;
- explicit = 1;
- }
- }
-
- /*
- * Any setting at all will clear the 'None' and 'Unset' bits.
- */
-
- if (cfg->etag_add != ETAG_UNSET) {
- cfg->etag_add &= (~ ETAG_UNSET);
- }
-
- if (cfg->etag_remove != ETAG_UNSET) {
- cfg->etag_remove &= (~ ETAG_UNSET);
- }
-
- if (explicit) {
- cfg->etag_bits &= (~ ETAG_UNSET);
-
- if ((cfg->etag_bits & ETAG_NONE) != ETAG_NONE) {
- cfg->etag_bits &= (~ ETAG_NONE);
- }
- }
-
- return NULL;
-}
-
-static const char *set_enable_mmap(cmd_parms *cmd, void *d_,
- const char *arg)
-{
- core_dir_config *d = d_;
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
-
- if (err != NULL) {
- return err;
- }
-
- if (strcasecmp(arg, "on") == 0) {
- d->enable_mmap = ENABLE_MMAP_ON;
- }
- else if (strcasecmp(arg, "off") == 0) {
- d->enable_mmap = ENABLE_MMAP_OFF;
- }
- else {
- return "parameter must be 'on' or 'off'";
- }
-
- return NULL;
-}
-
-static const char *set_enable_sendfile(cmd_parms *cmd, void *d_,
- const char *arg)
-{
- core_dir_config *d = d_;
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
-
- if (err != NULL) {
- return err;
- }
-
- if (strcasecmp(arg, "on") == 0) {
- d->enable_sendfile = ENABLE_SENDFILE_ON;
- }
- else if (strcasecmp(arg, "off") == 0) {
- d->enable_sendfile = ENABLE_SENDFILE_OFF;
- }
- else {
- return "parameter must be 'on' or 'off'";
- }
-
- return NULL;
-}
-
-static const char *satisfy(cmd_parms *cmd, void *c_, const char *arg)
-{
- core_dir_config *c = c_;
- int satisfy = SATISFY_NOSPEC;
- int i;
-
- if (!strcasecmp(arg, "all")) {
- satisfy = SATISFY_ALL;
- }
- else if (!strcasecmp(arg, "any")) {
- satisfy = SATISFY_ANY;
- }
- else {
- return "Satisfy either 'any' or 'all'.";
- }
-
- for (i = 0; i < METHODS; ++i) {
- if (cmd->limited & (AP_METHOD_BIT << i)) {
- c->satisfy[i] = satisfy;
- }
- }
-
- return NULL;
-}
-
-static const char *require(cmd_parms *cmd, void *c_, const char *arg)
-{
- require_line *r;
- core_dir_config *c = c_;
-
- if (!c->ap_requires) {
- c->ap_requires = apr_array_make(cmd->pool, 2, sizeof(require_line));
- }
-
- r = (require_line *)apr_array_push(c->ap_requires);
- r->requirement = apr_pstrdup(cmd->pool, arg);
- r->method_mask = cmd->limited;
-
- return NULL;
-}
-
-AP_CORE_DECLARE_NONSTD(const char *) ap_limit_section(cmd_parms *cmd,
- void *dummy,
- const char *arg)
-{
- const char *limited_methods = ap_getword(cmd->pool, &arg, '>');
- void *tog = cmd->cmd->cmd_data;
- apr_int64_t limited = 0;
- const char *errmsg;
-
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
- if (err != NULL) {
- return err;
- }
-
- while (limited_methods[0]) {
- char *method = ap_getword_conf(cmd->pool, &limited_methods);
- int methnum;
-
- /* check for builtin or module registered method number */
- methnum = ap_method_number_of(method);
-
- if (methnum == M_TRACE && !tog) {
- return "TRACE cannot be controlled by <Limit>, see TraceEnable";
- }
- else if (methnum == M_INVALID) {
- /* method has not been registered yet, but resorce restriction
- * is always checked before method handling, so register it.
- */
- methnum = ap_method_register(cmd->pool, method);
- }
-
- limited |= (AP_METHOD_BIT << methnum);
- }
-
- /* Killing two features with one function,
- * if (tog == NULL) <Limit>, else <LimitExcept>
- */
- cmd->limited = tog ? ~limited : limited;
-
- errmsg = ap_walk_config(cmd->directive->first_child, cmd, cmd->context);
-
- cmd->limited = -1;
-
- return errmsg;
-}
-
-/* XXX: Bogus - need to do this differently (at least OS2/Netware suffer
- * the same problem!!!
- * We use this in <DirectoryMatch> and <FilesMatch>, to ensure that
- * people don't get bitten by wrong-cased regex matches
- */
-
-#ifdef WIN32
-#define USE_ICASE REG_ICASE
-#else
-#define USE_ICASE 0
-#endif
-
-/*
- * Report a missing-'>' syntax error.
- */
-static char *unclosed_directive(cmd_parms *cmd)
-{
- return apr_pstrcat(cmd->pool, cmd->cmd->name,
- "> directive missing closing '>'", NULL);
-}
-
-static const char *dirsection(cmd_parms *cmd, void *mconfig, const char *arg)
-{
- const char *errmsg;
- const char *endp = ap_strrchr_c(arg, '>');
- int old_overrides = cmd->override;
- char *old_path = cmd->path;
- core_dir_config *conf;
- ap_conf_vector_t *new_dir_conf = ap_create_per_dir_config(cmd->pool);
- regex_t *r = NULL;
- const command_rec *thiscmd = cmd->cmd;
-
- const char *err = ap_check_cmd_context(cmd,
- NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
- if (err != NULL) {
- return err;
- }
-
- if (endp == NULL) {
- return unclosed_directive(cmd);
- }
-
- arg = apr_pstrndup(cmd->pool, arg, endp - arg);
-
- if (!arg) {
- if (thiscmd->cmd_data)
- return "<DirectoryMatch > block must specify a path";
- else
- return "<Directory > block must specify a path";
- }
-
- cmd->path = ap_getword_conf(cmd->pool, &arg);
- cmd->override = OR_ALL|ACCESS_CONF;
-
- if (!strcmp(cmd->path, "~")) {
- cmd->path = ap_getword_conf(cmd->pool, &arg);
- if (!cmd->path)
- return "<Directory ~ > block must specify a path";
- r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE);
- if (!r) {
- return "Regex could not be compiled";
- }
- }
- else if (thiscmd->cmd_data) { /* <DirectoryMatch> */
- r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE);
- if (!r) {
- return "Regex could not be compiled";
- }
- }
- else if (!strcmp(cmd->path, "/") == 0)
- {
- char *newpath;
-
- /*
- * Ensure that the pathname is canonical, and append the trailing /
- */
- apr_status_t rv = apr_filepath_merge(&newpath, NULL, cmd->path,
- APR_FILEPATH_TRUENAME, cmd->pool);
- if (rv != APR_SUCCESS && rv != APR_EPATHWILD) {
- return apr_pstrcat(cmd->pool, "<Directory \"", cmd->path,
- "\"> path is invalid.", NULL);
- }
-
- cmd->path = newpath;
- if (cmd->path[strlen(cmd->path) - 1] != '/')
- cmd->path = apr_pstrcat(cmd->pool, cmd->path, "/", NULL);
- }
-
- /* initialize our config and fetch it */
- conf = ap_set_config_vectors(cmd->server, new_dir_conf, cmd->path,
- &core_module, cmd->pool);
-
- errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_dir_conf);
- if (errmsg != NULL)
- return errmsg;
-
- conf->r = r;
- conf->d = cmd->path;
- conf->d_is_fnmatch = (apr_fnmatch_test(conf->d) != 0);
-
- /* Make this explicit - the "/" root has 0 elements, that is, we
- * will always merge it, and it will always sort and merge first.
- * All others are sorted and tested by the number of slashes.
- */
- if (strcmp(conf->d, "/") == 0)
- conf->d_components = 0;
- else
- conf->d_components = ap_count_dirs(conf->d);
-
- ap_add_per_dir_conf(cmd->server, new_dir_conf);
-
- if (*arg != '\0') {
- return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
- "> arguments not (yet) supported.", NULL);
- }
-
- cmd->path = old_path;
- cmd->override = old_overrides;
-
- return NULL;
-}
-
-static const char *urlsection(cmd_parms *cmd, void *mconfig, const char *arg)
-{
- const char *errmsg;
- const char *endp = ap_strrchr_c(arg, '>');
- int old_overrides = cmd->override;
- char *old_path = cmd->path;
- core_dir_config *conf;
- regex_t *r = NULL;
- const command_rec *thiscmd = cmd->cmd;
- ap_conf_vector_t *new_url_conf = ap_create_per_dir_config(cmd->pool);
- const char *err = ap_check_cmd_context(cmd,
- NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
- if (err != NULL) {
- return err;
- }
-
- if (endp == NULL) {
- return unclosed_directive(cmd);
- }
-
- arg = apr_pstrndup(cmd->pool, arg, endp - arg);
-
- cmd->path = ap_getword_conf(cmd->pool, &arg);
- cmd->override = OR_ALL|ACCESS_CONF;
-
- if (thiscmd->cmd_data) { /* <LocationMatch> */
- r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED);
- if (!r) {
- return "Regex could not be compiled";
- }
- }
- else if (!strcmp(cmd->path, "~")) {
- cmd->path = ap_getword_conf(cmd->pool, &arg);
- r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED);
- if (!r) {
- return "Regex could not be compiled";
- }
- }
-
- /* initialize our config and fetch it */
- conf = ap_set_config_vectors(cmd->server, new_url_conf, cmd->path,
- &core_module, cmd->pool);
-
- errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_url_conf);
- if (errmsg != NULL)
- return errmsg;
-
- conf->d = apr_pstrdup(cmd->pool, cmd->path); /* No mangling, please */
- conf->d_is_fnmatch = apr_fnmatch_test(conf->d) != 0;
- conf->r = r;
-
- ap_add_per_url_conf(cmd->server, new_url_conf);
-
- if (*arg != '\0') {
- return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
- "> arguments not (yet) supported.", NULL);
- }
-
- cmd->path = old_path;
- cmd->override = old_overrides;
-
- return NULL;
-}
-
-static const char *filesection(cmd_parms *cmd, void *mconfig, const char *arg)
-{
- const char *errmsg;
- const char *endp = ap_strrchr_c(arg, '>');
- int old_overrides = cmd->override;
- char *old_path = cmd->path;
- core_dir_config *conf;
- regex_t *r = NULL;
- const command_rec *thiscmd = cmd->cmd;
- core_dir_config *c = mconfig;
- ap_conf_vector_t *new_file_conf = ap_create_per_dir_config(cmd->pool);
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT|NOT_IN_LOCATION);
-
- if (err != NULL) {
- return err;
- }
-
- if (endp == NULL) {
- return unclosed_directive(cmd);
- }
-
- arg = apr_pstrndup(cmd->pool, arg, endp - arg);
-
- cmd->path = ap_getword_conf(cmd->pool, &arg);
- /* Only if not an .htaccess file */
- if (!old_path) {
- cmd->override = OR_ALL|ACCESS_CONF;
- }
-
- if (thiscmd->cmd_data) { /* <FilesMatch> */
- r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE);
- if (!r) {
- return "Regex could not be compiled";
- }
- }
- else if (!strcmp(cmd->path, "~")) {
- cmd->path = ap_getword_conf(cmd->pool, &arg);
- r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE);
- if (!r) {
- return "Regex could not be compiled";
- }
- }
- else {
- char *newpath;
- /* Ensure that the pathname is canonical, but we
- * can't test the case/aliases without a fixed path */
- if (apr_filepath_merge(&newpath, "", cmd->path,
- 0, cmd->pool) != APR_SUCCESS)
- return apr_pstrcat(cmd->pool, "<Files \"", cmd->path,
- "\"> is invalid.", NULL);
- cmd->path = newpath;
- }
-
- /* initialize our config and fetch it */
- conf = ap_set_config_vectors(cmd->server, new_file_conf, cmd->path,
- &core_module, cmd->pool);
-
- errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_file_conf);
- if (errmsg != NULL)
- return errmsg;
-
- conf->d = cmd->path;
- conf->d_is_fnmatch = apr_fnmatch_test(conf->d) != 0;
- conf->r = r;
-
- ap_add_file_conf(c, new_file_conf);
-
- if (*arg != '\0') {
- return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name,
- "> arguments not (yet) supported.", NULL);
- }
-
- cmd->path = old_path;
- cmd->override = old_overrides;
-
- return NULL;
-}
-
-static const char *start_ifmod(cmd_parms *cmd, void *mconfig, const char *arg)
-{
- const char *endp = ap_strrchr_c(arg, '>');
- int not = (arg[0] == '!');
- module *found;
-
- if (endp == NULL) {
- return unclosed_directive(cmd);
- }
-
- arg = apr_pstrndup(cmd->pool, arg, endp - arg);
-
- if (not) {
- arg++;
- }
-
- found = ap_find_linked_module(arg);
-
- if ((!not && found) || (not && !found)) {
- ap_directive_t *parent = NULL;
- ap_directive_t *current = NULL;
- const char *retval;
-
- retval = ap_build_cont_config(cmd->pool, cmd->temp_pool, cmd,
- ¤t, &parent, "<IfModule");
- *(ap_directive_t **)mconfig = current;
- return retval;
- }
- else {
- *(ap_directive_t **)mconfig = NULL;
- return ap_soak_end_container(cmd, "<IfModule");
- }
-}
-
-AP_DECLARE(int) ap_exists_config_define(const char *name)
-{
- char **defines;
- int i;
-
- defines = (char **)ap_server_config_defines->elts;
- for (i = 0; i < ap_server_config_defines->nelts; i++) {
- if (strcmp(defines[i], name) == 0) {
- return 1;
- }
- }
-
- return 0;
-}
-
-static const char *start_ifdefine(cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *endp;
- int defined;
- int not = 0;
-
- endp = ap_strrchr_c(arg, '>');
- if (endp == NULL) {
- return unclosed_directive(cmd);
- }
-
- arg = apr_pstrndup(cmd->pool, arg, endp - arg);
-
- if (arg[0] == '!') {
- not = 1;
- arg++;
- }
-
- defined = ap_exists_config_define(arg);
- if ((!not && defined) || (not && !defined)) {
- ap_directive_t *parent = NULL;
- ap_directive_t *current = NULL;
- const char *retval;
-
- retval = ap_build_cont_config(cmd->pool, cmd->temp_pool, cmd,
- ¤t, &parent, "<IfDefine");
- *(ap_directive_t **)dummy = current;
- return retval;
- }
- else {
- *(ap_directive_t **)dummy = NULL;
- return ap_soak_end_container(cmd, "<IfDefine");
- }
-}
-
-/* httpd.conf commands... beginning with the <VirtualHost> business */
-
-static const char *virtualhost_section(cmd_parms *cmd, void *dummy,
- const char *arg)
-{
- server_rec *main_server = cmd->server, *s;
- const char *errmsg;
- const char *endp = ap_strrchr_c(arg, '>');
- apr_pool_t *p = cmd->pool;
-
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- if (endp == NULL) {
- return unclosed_directive(cmd);
- }
-
- arg = apr_pstrndup(cmd->pool, arg, endp - arg);
-
- /* FIXME: There's another feature waiting to happen here -- since you
- can now put multiple addresses/names on a single <VirtualHost>
- you might want to use it to group common definitions and then
- define other "subhosts" with their individual differences. But
- personally I'd rather just do it with a macro preprocessor. -djg */
- if (main_server->is_virtual) {
- return "<VirtualHost> doesn't nest!";
- }
-
- errmsg = ap_init_virtual_host(p, arg, main_server, &s);
- if (errmsg) {
- return errmsg;
- }
-
- s->next = main_server->next;
- main_server->next = s;
-
- s->defn_name = cmd->directive->filename;
- s->defn_line_number = cmd->directive->line_num;
-
- cmd->server = s;
-
- errmsg = ap_walk_config(cmd->directive->first_child, cmd,
- s->lookup_defaults);
-
- cmd->server = main_server;
-
- return errmsg;
-}
-
-static const char *set_server_alias(cmd_parms *cmd, void *dummy,
- const char *arg)
-{
- if (!cmd->server->names) {
- return "ServerAlias only used in <VirtualHost>";
- }
-
- while (*arg) {
- char **item, *name = ap_getword_conf(cmd->pool, &arg);
-
- if (ap_is_matchexp(name)) {
- item = (char **)apr_array_push(cmd->server->wild_names);
- }
- else {
- item = (char **)apr_array_push(cmd->server->names);
- }
-
- *item = name;
- }
-
- return NULL;
-}
-
-static const char *set_server_string_slot(cmd_parms *cmd, void *dummy,
- const char *arg)
-{
- /* This one's pretty generic... */
-
- int offset = (int)(long)cmd->info;
- char *struct_ptr = (char *)cmd->server;
-
- const char *err = ap_check_cmd_context(cmd,
- NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
- if (err != NULL) {
- return err;
- }
-
- *(const char **)(struct_ptr + offset) = arg;
- return NULL;
-}
-
-static const char *server_hostname_port(cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
- const char *portstr;
- int port;
-
- if (err != NULL) {
- return err;
- }
-
- portstr = ap_strchr_c(arg, ':');
- if (portstr) {
- cmd->server->server_hostname = apr_pstrndup(cmd->pool, arg,
- portstr - arg);
- portstr++;
- port = atoi(portstr);
- if (port <= 0 || port >= 65536) { /* 65536 == 1<<16 */
- return apr_pstrcat(cmd->temp_pool, "The port number \"", arg,
- "\" is outside the appropriate range "
- "(i.e., 1..65535).", NULL);
- }
- }
- else {
- cmd->server->server_hostname = apr_pstrdup(cmd->pool, arg);
- port = 0;
- }
-
- cmd->server->port = port;
- return NULL;
-}
-
-static const char *set_signature_flag(cmd_parms *cmd, void *d_,
- const char *arg)
-{
- core_dir_config *d = d_;
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
-
- if (err != NULL) {
- return err;
- }
-
- if (strcasecmp(arg, "On") == 0) {
- d->server_signature = srv_sig_on;
- }
- else if (strcasecmp(arg, "Off") == 0) {
- d->server_signature = srv_sig_off;
- }
- else if (strcasecmp(arg, "EMail") == 0) {
- d->server_signature = srv_sig_withmail;
- }
- else {
- return "ServerSignature: use one of: off | on | email";
- }
-
- return NULL;
-}
-
-static const char *set_server_root(cmd_parms *cmd, void *dummy,
- const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
-
- if (err != NULL) {
- return err;
- }
-
- if ((apr_filepath_merge((char**)&ap_server_root, NULL, arg,
- APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS)
- || !ap_is_directory(cmd->pool, ap_server_root)) {
- return "ServerRoot must be a valid directory";
- }
-
- return NULL;
-}
-
-static const char *set_timeout(cmd_parms *cmd, void *dummy, const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
-
- if (err != NULL) {
- return err;
- }
-
- cmd->server->timeout = apr_time_from_sec(atoi(arg));
- return NULL;
-}
-
-static const char *set_idcheck(cmd_parms *cmd, void *d_, int arg)
-{
- core_dir_config *d = d_;
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
-
- if (err != NULL) {
- return err;
- }
-
- d->do_rfc1413 = arg != 0;
- return NULL;
-}
-
-static const char *set_allow2f(cmd_parms *cmd, void *d_, int arg)
-{
- core_dir_config *d = d_;
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
-
- if (err != NULL) {
- return err;
- }
-
- d->allow_encoded_slashes = arg != 0;
- return NULL;
-}
-
-static const char *set_hostname_lookups(cmd_parms *cmd, void *d_,
- const char *arg)
-{
- core_dir_config *d = d_;
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
-
- if (err != NULL) {
- return err;
- }
-
- if (!strcasecmp(arg, "on")) {
- d->hostname_lookups = HOSTNAME_LOOKUP_ON;
- }
- else if (!strcasecmp(arg, "off")) {
- d->hostname_lookups = HOSTNAME_LOOKUP_OFF;
- }
- else if (!strcasecmp(arg, "double")) {
- d->hostname_lookups = HOSTNAME_LOOKUP_DOUBLE;
- }
- else {
- return "parameter must be 'on', 'off', or 'double'";
- }
-
- return NULL;
-}
-
-static const char *set_serverpath(cmd_parms *cmd, void *dummy,
- const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
-
- if (err != NULL) {
- return err;
- }
-
- cmd->server->path = arg;
- cmd->server->pathlen = strlen(arg);
- return NULL;
-}
-
-static const char *set_content_md5(cmd_parms *cmd, void *d_, int arg)
-{
- core_dir_config *d = d_;
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
-
- if (err != NULL) {
- return err;
- }
-
- d->content_md5 = arg != 0;
- return NULL;
-}
-
-static const char *set_accept_path_info(cmd_parms *cmd, void *d_, const char *arg)
-{
- core_dir_config *d = d_;
-
- if (strcasecmp(arg, "on") == 0) {
- d->accept_path_info = AP_REQ_ACCEPT_PATH_INFO;
- }
- else if (strcasecmp(arg, "off") == 0) {
- d->accept_path_info = AP_REQ_REJECT_PATH_INFO;
- }
- else if (strcasecmp(arg, "default") == 0) {
- d->accept_path_info = AP_REQ_DEFAULT_PATH_INFO;
- }
- else {
- return "AcceptPathInfo must be set to on, off or default";
- }
-
- return NULL;
-}
-
-static const char *set_use_canonical_name(cmd_parms *cmd, void *d_,
- const char *arg)
-{
- core_dir_config *d = d_;
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
-
- if (err != NULL) {
- return err;
- }
-
- if (strcasecmp(arg, "on") == 0) {
- d->use_canonical_name = USE_CANONICAL_NAME_ON;
- }
- else if (strcasecmp(arg, "off") == 0) {
- d->use_canonical_name = USE_CANONICAL_NAME_OFF;
- }
- else if (strcasecmp(arg, "dns") == 0) {
- d->use_canonical_name = USE_CANONICAL_NAME_DNS;
- }
- else {
- return "parameter must be 'on', 'off', or 'dns'";
- }
-
- return NULL;
-}
-
-
-static const char *include_config (cmd_parms *cmd, void *dummy,
- const char *name)
-{
- ap_directive_t *conftree = NULL;
- const char* conffile;
- unsigned *recursion;
- void *data;
-
- apr_pool_userdata_get(&data, "ap_include_sentinel", cmd->pool);
- if (data) {
- recursion = data;
- }
- else {
- data = recursion = apr_palloc(cmd->pool, sizeof(*recursion));
- *recursion = 0;
- apr_pool_userdata_setn(data, "ap_include_sentinel", NULL, cmd->pool);
- }
-
- if (++*recursion > AP_MAX_INCLUDE_DEPTH) {
- *recursion = 0;
- return apr_psprintf(cmd->pool, "Exceeded maximum include depth of %u. "
- "You have probably a recursion somewhere.",
- AP_MAX_INCLUDE_DEPTH);
- }
-
- conffile = ap_server_root_relative(cmd->pool, name);
- if (!conffile) {
- *recursion = 0;
- return apr_pstrcat(cmd->pool, "Invalid Include path ",
- name, NULL);
- }
-
- ap_process_resource_config(cmd->server, conffile,
- &conftree, cmd->pool, cmd->temp_pool);
- *(ap_directive_t **)dummy = conftree;
-
- /* recursion level done */
- if (*recursion) {
- --*recursion;
- }
-
- return NULL;
-}
-
-static const char *set_loglevel(cmd_parms *cmd, void *dummy, const char *arg)
-{
- char *str;
-
- const char *err = ap_check_cmd_context(cmd,
- NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
- if (err != NULL) {
- return err;
- }
-
- if ((str = ap_getword_conf(cmd->pool, &arg))) {
- if (!strcasecmp(str, "emerg")) {
- cmd->server->loglevel = APLOG_EMERG;
- }
- else if (!strcasecmp(str, "alert")) {
- cmd->server->loglevel = APLOG_ALERT;
- }
- else if (!strcasecmp(str, "crit")) {
- cmd->server->loglevel = APLOG_CRIT;
- }
- else if (!strcasecmp(str, "error")) {
- cmd->server->loglevel = APLOG_ERR;
- }
- else if (!strcasecmp(str, "warn")) {
- cmd->server->loglevel = APLOG_WARNING;
- }
- else if (!strcasecmp(str, "notice")) {
- cmd->server->loglevel = APLOG_NOTICE;
- }
- else if (!strcasecmp(str, "info")) {
- cmd->server->loglevel = APLOG_INFO;
- }
- else if (!strcasecmp(str, "debug")) {
- cmd->server->loglevel = APLOG_DEBUG;
- }
- else {
- return "LogLevel requires level keyword: one of "
- "emerg/alert/crit/error/warn/notice/info/debug";
- }
- }
- else {
- return "LogLevel requires level keyword";
- }
-
- return NULL;
-}
-
-AP_DECLARE(const char *) ap_psignature(const char *prefix, request_rec *r)
-{
- char sport[20];
- core_dir_config *conf;
-
- conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
- &core_module);
- if ((conf->server_signature == srv_sig_off)
- || (conf->server_signature == srv_sig_unset)) {
- return "";
- }
-
- apr_snprintf(sport, sizeof sport, "%u", (unsigned) ap_get_server_port(r));
-
- if (conf->server_signature == srv_sig_withmail) {
- return apr_pstrcat(r->pool, prefix, "<address>",
- ap_get_server_version(),
- " Server at <a href=\"",
- ap_is_url(r->server->server_admin) ? "" : "mailto:",
- ap_escape_html(r->pool, r->server->server_admin),
- "\">",
- ap_escape_html(r->pool, ap_get_server_name(r)),
- "</a> Port ", sport,
- "</address>\n", NULL);
- }
-
- return apr_pstrcat(r->pool, prefix, "<address>", ap_get_server_version(),
- " Server at ",
- ap_escape_html(r->pool, ap_get_server_name(r)),
- " Port ", sport,
- "</address>\n", NULL);
-}
-
-/*
- * Load an authorisation realm into our location configuration, applying the
- * usual rules that apply to realms.
- */
-static const char *set_authname(cmd_parms *cmd, void *mconfig,
- const char *word1)
-{
- core_dir_config *aconfig = (core_dir_config *)mconfig;
-
- aconfig->ap_auth_name = ap_escape_quotes(cmd->pool, word1);
- return NULL;
-}
-
-#ifdef _OSD_POSIX /* BS2000 Logon Passwd file */
-static const char *set_bs2000_account(cmd_parms *cmd, void *dummy, char *name)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
- if (err != NULL) {
- return err;
- }
-
- return os_set_account(cmd->pool, name);
-}
-#endif /*_OSD_POSIX*/
-
-/*
- * Handle a request to include the server's OS platform in the Server
- * response header field (the ServerTokens directive). Unfortunately
- * this requires a new global in order to communicate the setting back to
- * http_main so it can insert the information in the right place in the
- * string.
- */
-
-static char *server_version = NULL;
-static int version_locked = 0;
-
-enum server_token_type {
- SrvTk_MAJOR, /* eg: Apache/2 */
- SrvTk_MINOR, /* eg. Apache/2.0 */
- SrvTk_MINIMAL, /* eg: Apache/2.0.41 */
- SrvTk_OS, /* eg: Apache/2.0.41 (UNIX) */
- SrvTk_FULL, /* eg: Apache/2.0.41 (UNIX) PHP/4.2.2 FooBar/1.2b */
- SrvTk_PRODUCT_ONLY /* eg: Apache */
-};
-static enum server_token_type ap_server_tokens = SrvTk_FULL;
-
-static apr_status_t reset_version(void *dummy)
-{
- version_locked = 0;
- ap_server_tokens = SrvTk_FULL;
- server_version = NULL;
- return APR_SUCCESS;
-}
-
-AP_DECLARE(void) ap_get_server_revision(ap_version_t *version)
-{
- version->major = AP_SERVER_MAJORVERSION_NUMBER;
- version->minor = AP_SERVER_MINORVERSION_NUMBER;
- version->patch = AP_SERVER_PATCHLEVEL_NUMBER;
- version->add_string = AP_SERVER_ADD_STRING;
-}
-
-AP_DECLARE(const char *) ap_get_server_version(void)
-{
- return (server_version ? server_version : AP_SERVER_BASEVERSION);
-}
-
-AP_DECLARE(void) ap_add_version_component(apr_pool_t *pconf, const char *component)
-{
- if (! version_locked) {
- /*
- * If the version string is null, register our cleanup to reset the
- * pointer on pool destruction. We also know that, if NULL,
- * we are adding the original SERVER_BASEVERSION string.
- */
- if (server_version == NULL) {
- apr_pool_cleanup_register(pconf, NULL, reset_version,
- apr_pool_cleanup_null);
- server_version = apr_pstrdup(pconf, component);
- }
- else {
- /*
- * Tack the given component identifier to the end of
- * the existing string.
- */
- server_version = apr_pstrcat(pconf, server_version, " ",
- component, NULL);
- }
- }
-}
-
-/*
- * This routine adds the real server base identity to the version string,
- * and then locks out changes until the next reconfig.
- */
-static void ap_set_version(apr_pool_t *pconf)
-{
- if (ap_server_tokens == SrvTk_PRODUCT_ONLY) {
- ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT);
- }
- else if (ap_server_tokens == SrvTk_MINIMAL) {
- ap_add_version_component(pconf, AP_SERVER_BASEVERSION);
- }
- else if (ap_server_tokens == SrvTk_MINOR) {
- ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT "/" AP_SERVER_MINORREVISION);
- }
- else if (ap_server_tokens == SrvTk_MAJOR) {
- ap_add_version_component(pconf, AP_SERVER_BASEPRODUCT "/" AP_SERVER_MAJORVERSION);
- }
- else {
- ap_add_version_component(pconf, AP_SERVER_BASEVERSION " (" PLATFORM ")");
- }
-
- /*
- * Lock the server_version string if we're not displaying
- * the full set of tokens
- */
- if (ap_server_tokens != SrvTk_FULL) {
- version_locked++;
- }
-}
-
-static const char *set_serv_tokens(cmd_parms *cmd, void *dummy,
- const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY);
-
- if (err != NULL) {
- return err;
- }
-
- if (!strcasecmp(arg, "OS")) {
- ap_server_tokens = SrvTk_OS;
- }
- else if (!strcasecmp(arg, "Min") || !strcasecmp(arg, "Minimal")) {
- ap_server_tokens = SrvTk_MINIMAL;
- }
- else if (!strcasecmp(arg, "Major")) {
- ap_server_tokens = SrvTk_MAJOR;
- }
- else if (!strcasecmp(arg, "Minor") ) {
- ap_server_tokens = SrvTk_MINOR;
- }
- else if (!strcasecmp(arg, "Prod") || !strcasecmp(arg, "ProductOnly")) {
- ap_server_tokens = SrvTk_PRODUCT_ONLY;
- }
- else {
- ap_server_tokens = SrvTk_FULL;
- }
-
- return NULL;
-}
-
-static const char *set_limit_req_line(cmd_parms *cmd, void *dummy,
- const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd,
- NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
- int lim;
-
- if (err != NULL) {
- return err;
- }
-
- lim = atoi(arg);
- if (lim < 0) {
- return apr_pstrcat(cmd->temp_pool, "LimitRequestLine \"", arg,
- "\" must be a non-negative integer", NULL);
- }
-
- cmd->server->limit_req_line = lim;
- return NULL;
-}
-
-static const char *set_limit_req_fieldsize(cmd_parms *cmd, void *dummy,
- const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd,
- NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
- int lim;
-
- if (err != NULL) {
- return err;
- }
-
- lim = atoi(arg);
- if (lim < 0) {
- return apr_pstrcat(cmd->temp_pool, "LimitRequestFieldsize \"", arg,
- "\" must be a non-negative integer",
- NULL);
- }
-
- cmd->server->limit_req_fieldsize = lim;
- return NULL;
-}
-
-static const char *set_limit_req_fields(cmd_parms *cmd, void *dummy,
- const char *arg)
-{
- const char *err = ap_check_cmd_context(cmd,
- NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT);
- int lim;
-
- if (err != NULL) {
- return err;
- }
-
- lim = atoi(arg);
- if (lim < 0) {
- return apr_pstrcat(cmd->temp_pool, "LimitRequestFields \"", arg,
- "\" must be a non-negative integer (0 = no limit)",
- NULL);
- }
-
- cmd->server->limit_req_fields = lim;
- return NULL;
-}
-
-static const char *set_limit_req_body(cmd_parms *cmd, void *conf_,
- const char *arg)
-{
- core_dir_config *conf = conf_;
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
- char *errp;
-
- if (err != NULL) {
- return err;
- }
-
- /* WTF: If strtoul is not portable, then write a replacement.
- * Instead we have an idiotic define in httpd.h that prevents
- * it from being used even when it is available. Sheesh.
- */
- conf->limit_req_body = (apr_off_t)strtol(arg, &errp, 10);
- if (*errp != '\0') {
- return "LimitRequestBody requires a non-negative integer.";
- }
-
- return NULL;
-}
-
-static const char *set_limit_xml_req_body(cmd_parms *cmd, void *conf_,
- const char *arg)
-{
- core_dir_config *conf = conf_;
- const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT);
-
- if (err != NULL) {
- return err;
- }
-
- conf->limit_xml_body = atol(arg);
- if (conf->limit_xml_body < 0)
- return "LimitXMLRequestBody requires a non-negative integer.";
-
- return NULL;
-}
-
-AP_DECLARE(size_t) ap_get_limit_xml_body(const request_rec *r)
-{
- core_dir_config *conf;
-
- conf = ap_get_module_config(r->per_dir_config, &core_module);
- if (conf->limit_xml_body == AP_LIMIT_UNSET)
- return AP_DEFAULT_LIMIT_XML_BODY;
-
- return (size_t)conf->limit_xml_body;
-}
-
-#if !defined (RLIMIT_CPU) || !(defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS)) || !defined (RLIMIT_NPROC)
-static const char *no_set_limit(cmd_parms *cmd, void *conf_,
- const char *arg, const char *arg2)
-{
- ap_log_error(APLOG_MARK, APLOG_ERR, 0, cmd->server,
- "%s not supported on this platform", cmd->cmd->name);
-
- return NULL;
-}
-#endif
-
-#ifdef RLIMIT_CPU
-static const char *set_limit_cpu(cmd_parms *cmd, void *conf_,
- const char *arg, const char *arg2)
-{
- core_dir_config *conf = conf_;
-
- unixd_set_rlimit(cmd, &conf->limit_cpu, arg, arg2, RLIMIT_CPU);
- return NULL;
-}
-#endif
-
-#if defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS)
-static const char *set_limit_mem(cmd_parms *cmd, void *conf_,
- const char *arg, const char * arg2)
-{
- core_dir_config *conf = conf_;
-
-#if defined(RLIMIT_AS)
- unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2 ,RLIMIT_AS);
-#elif defined(RLIMIT_DATA)
- unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2, RLIMIT_DATA);
-#elif defined(RLIMIT_VMEM)
- unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2, RLIMIT_VMEM);
-#endif
-
- return NULL;
-}
-#endif
-
-#ifdef RLIMIT_NPROC
-static const char *set_limit_nproc(cmd_parms *cmd, void *conf_,
- const char *arg, const char * arg2)
-{
- core_dir_config *conf = conf_;
-
- unixd_set_rlimit(cmd, &conf->limit_nproc, arg, arg2, RLIMIT_NPROC);
- return NULL;
-}
-#endif
-
-static const char *set_recursion_limit(cmd_parms *cmd, void *dummy,
- const char *arg1, const char *arg2)
-{
- core_server_config *conf = ap_get_module_config(cmd->server->module_config,
- &core_module);
- int limit = atoi(arg1);
-
- if (limit <= 0) {
- return "The recursion limit must be greater than zero.";
- }
- if (limit < 4) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server,
- "Limiting internal redirects to very low numbers may "
- "cause normal requests to fail.");
- }
-
- conf->redirect_limit = limit;
-
- if (arg2) {
- limit = atoi(arg2);
-
- if (limit <= 0) {
- return "The recursion limit must be greater than zero.";
- }
- if (limit < 4) {
- ap_log_error(APLOG_MARK, APLOG_WARNING, 0, cmd->server,
- "Limiting the subrequest depth to a very low level may"
- " cause normal requests to fail.");
- }
- }
-
- conf->subreq_limit = limit;
-
- return NULL;
-}
-
-static void log_backtrace(const request_rec *r)
-{
- const request_rec *top = r;
-
- ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
- "r->uri = %s", r->uri ? r->uri : "(unexpectedly NULL)");
-
- while (top && (top->prev || top->main)) {
- if (top->prev) {
- top = top->prev;
- ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
- "redirected from r->uri = %s",
- top->uri ? top->uri : "(unexpectedly NULL)");
- }
-
- if (!top->prev && top->main) {
- top = top->main;
- ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
- "subrequested from r->uri = %s",
- top->uri ? top->uri : "(unexpectedly NULL)");
- }
- }
-}
-
-/*
- * check whether redirect limit is reached
- */
-AP_DECLARE(int) ap_is_recursion_limit_exceeded(const request_rec *r)
-{
- core_server_config *conf = ap_get_module_config(r->server->module_config,
- &core_module);
- const request_rec *top = r;
- int redirects = 0, subreqs = 0;
- int rlimit = conf->redirect_limit
- ? conf->redirect_limit
- : AP_DEFAULT_MAX_INTERNAL_REDIRECTS;
- int slimit = conf->subreq_limit
- ? conf->subreq_limit
- : AP_DEFAULT_MAX_SUBREQ_DEPTH;
-
-
- while (top->prev || top->main) {
- if (top->prev) {
- if (++redirects >= rlimit) {
- /* uuh, too much. */
- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
- "Request exceeded the limit of %d internal "
- "redirects due to probable configuration error. "
- "Use 'LimitInternalRecursion' to increase the "
- "limit if necessary. Use 'LogLevel debug' to get "
- "a backtrace.", rlimit);
-
- /* post backtrace */
- log_backtrace(r);
-
- /* return failure */
- return 1;
- }
-
- top = top->prev;
- }
-
- if (!top->prev && top->main) {
- if (++subreqs >= slimit) {
- /* uuh, too much. */
- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
- "Request exceeded the limit of %d subrequest "
- "nesting levels due to probable confguration "
- "error. Use 'LimitInternalRecursion' to increase "
- "the limit if necessary. Use 'LogLevel debug' to "
- "get a backtrace.", slimit);
-
- /* post backtrace */
- log_backtrace(r);
-
- /* return failure */
- return 1;
- }
-
- top = top->main;
- }
- }
-
- /* recursion state: ok */
- return 0;
-}
-
-static const char *add_ct_output_filters(cmd_parms *cmd, void *conf_,
- const char *arg, const char *arg2)
-{
- core_dir_config *conf = conf_;
- ap_filter_rec_t *old, *new = NULL;
- const char *filter_name;
-
- if (!conf->ct_output_filters) {
- conf->ct_output_filters = apr_hash_make(cmd->pool);
- old = NULL;
- }
- else {
- old = (ap_filter_rec_t*) apr_hash_get(conf->ct_output_filters, arg2,
- APR_HASH_KEY_STRING);
- }
-
- while (*arg &&
- (filter_name = ap_getword(cmd->pool, &arg, ';')) &&
- strcmp(filter_name, "")) {
- new = apr_pcalloc(cmd->pool, sizeof(ap_filter_rec_t));
- new->name = filter_name;
-
- /* We found something, so let's append it. */
- if (old) {
- new->next = old;
- }
- old = new;
- }
-
- if (!new) {
- return "invalid filter name";
- }
-
- apr_hash_set(conf->ct_output_filters, arg2, APR_HASH_KEY_STRING, new);
-
- return NULL;
-}
-/*
- * Insert filters requested by the AddOutputFilterByType
- * configuration directive. We cannot add filters based
- * on content-type until after the handler has started
- * to run. Only then do we reliably know the content-type.
- */
-void ap_add_output_filters_by_type(request_rec *r)
-{
- core_dir_config *conf;
- const char *ctype, *ctypes;
-
- conf = (core_dir_config *)ap_get_module_config(r->per_dir_config,
- &core_module);
-
- /* We can't do anything with proxy requests, no content-types or if
- * we don't have a filter configured.
- */
- if (r->proxyreq != PROXYREQ_NONE || !r->content_type ||
- !conf->ct_output_filters) {
- return;
- }
-
- ctypes = r->content_type;
-
- /* We must be able to handle decorated content-types. */
- while (*ctypes && (ctype = ap_getword(r->pool, &ctypes, ';'))) {
- ap_filter_rec_t *ct_filter;
- ct_filter = apr_hash_get(conf->ct_output_filters, ctype,
- APR_HASH_KEY_STRING);
- while (ct_filter) {
- ap_add_output_filter(ct_filter->name, NULL, r, r->connection);
- ct_filter = ct_filter->next;
- }
- }
-
- return;
-}
-
-static apr_status_t writev_it_all(apr_socket_t *s,
- struct iovec *vec, int nvec,
- apr_size_t len, apr_size_t *nbytes)
-{
- apr_size_t bytes_written = 0;
- apr_status_t rv;
- apr_size_t n = len;
- int i = 0;
-
- *nbytes = 0;
-
- /* XXX handle checking for non-blocking socket */
- while (bytes_written != len) {
- rv = apr_sendv(s, vec + i, nvec - i, &n);
- bytes_written += n;
- if (rv != APR_SUCCESS)
- return rv;
-
- *nbytes += n;
-
- /* If the write did not complete, adjust the iovecs and issue
- * apr_sendv again
- */
- if (bytes_written < len) {
- /* Skip over the vectors that have already been written */
- apr_size_t cnt = vec[i].iov_len;
- while (n >= cnt && i + 1 < nvec) {
- i++;
- cnt += vec[i].iov_len;
- }
-
- if (n < cnt) {
- /* Handle partial write of vec i */
- vec[i].iov_base = (char *) vec[i].iov_base +
- (vec[i].iov_len - (cnt - n));
- vec[i].iov_len = cnt -n;
- }
- }
-
- n = len - bytes_written;
- }
-
- return APR_SUCCESS;
-}
-
-/* sendfile_it_all()
- * send the entire file using sendfile()
- * handle partial writes
- * return only when all bytes have been sent or an error is encountered.
- */
-
-#if APR_HAS_SENDFILE
-static apr_status_t sendfile_it_all(core_net_rec *c,
- apr_file_t *fd,
- apr_hdtr_t *hdtr,
- apr_off_t file_offset,
- apr_size_t file_bytes_left,
- apr_size_t total_bytes_left,
- apr_size_t *bytes_sent,
- apr_int32_t flags)
-{
- apr_status_t rv;
-#ifdef AP_DEBUG
- apr_interval_time_t timeout = 0;
-#endif
-
- AP_DEBUG_ASSERT((apr_socket_timeout_get(c->client_socket, &timeout)
- == APR_SUCCESS)
- && timeout > 0); /* socket must be in timeout mode */
-
- /* Reset the bytes_sent field */
- *bytes_sent = 0;
-
- do {
- apr_size_t tmplen = file_bytes_left;
-
- rv = apr_sendfile(c->client_socket, fd, hdtr, &file_offset, &tmplen,
- flags);
- *bytes_sent += tmplen;
- total_bytes_left -= tmplen;
- if (!total_bytes_left || rv != APR_SUCCESS) {
- return rv; /* normal case & error exit */
- }
-
- AP_DEBUG_ASSERT(total_bytes_left > 0 && tmplen > 0);
-
- /* partial write, oooh noooo...
- * Skip over any header data which was written
- */
- while (tmplen && hdtr->numheaders) {
- if (tmplen >= hdtr->headers[0].iov_len) {
- tmplen -= hdtr->headers[0].iov_len;
- --hdtr->numheaders;
- ++hdtr->headers;
- }
- else {
- char *iov_base = (char *)hdtr->headers[0].iov_base;
-
- hdtr->headers[0].iov_len -= tmplen;
- iov_base += tmplen;
- hdtr->headers[0].iov_base = iov_base;
- tmplen = 0;
- }
- }
-
- /* Skip over any file data which was written */
-
- if (tmplen <= file_bytes_left) {
- file_offset += tmplen;
- file_bytes_left -= tmplen;
- continue;
- }
-
- tmplen -= file_bytes_left;
- file_bytes_left = 0;
- file_offset = 0;
-
- /* Skip over any trailer data which was written */
-
- while (tmplen && hdtr->numtrailers) {
- if (tmplen >= hdtr->trailers[0].iov_len) {
- tmplen -= hdtr->trailers[0].iov_len;
- --hdtr->numtrailers;
- ++hdtr->trailers;
- }
- else {
- char *iov_base = (char *)hdtr->trailers[0].iov_base;
-
- hdtr->trailers[0].iov_len -= tmplen;
- iov_base += tmplen;
- hdtr->trailers[0].iov_base = iov_base;
- tmplen = 0;
- }
- }
- } while (1);
-}
-#endif
-
-/*
- * emulate_sendfile()
- * Sends the contents of file fd along with header/trailer bytes, if any,
- * to the network. emulate_sendfile will return only when all the bytes have been
- * sent (i.e., it handles partial writes) or on a network error condition.
- */
-static apr_status_t emulate_sendfile(core_net_rec *c, apr_file_t *fd,
- apr_hdtr_t *hdtr, apr_off_t offset,
- apr_size_t length, apr_size_t *nbytes)
-{
- apr_status_t rv = APR_SUCCESS;
- apr_int32_t togo; /* Remaining number of bytes in the file to send */
- apr_size_t sendlen = 0;
- apr_size_t bytes_sent;
- apr_int32_t i;
- apr_off_t o; /* Track the file offset for partial writes */
- char buffer[8192];
-
- *nbytes = 0;
-
- /* Send the headers
- * writev_it_all handles partial writes.
- * XXX: optimization... if headers are less than MIN_WRITE_SIZE, copy
- * them into buffer
- */
- if (hdtr && hdtr->numheaders > 0 ) {
- for (i = 0; i < hdtr->numheaders; i++) {
- sendlen += hdtr->headers[i].iov_len;
- }
-
- rv = writev_it_all(c->client_socket, hdtr->headers, hdtr->numheaders,
- sendlen, &bytes_sent);
- if (rv == APR_SUCCESS)
- *nbytes += bytes_sent; /* track total bytes sent */
- }
-
- /* Seek the file to 'offset' */
- if (offset >= 0 && rv == APR_SUCCESS) {
- rv = apr_file_seek(fd, APR_SET, &offset);
- }
-
- /* Send the file, making sure to handle partial writes */
- togo = length;
- while (rv == APR_SUCCESS && togo) {
- sendlen = togo > sizeof(buffer) ? sizeof(buffer) : togo;
- o = 0;
- rv = apr_file_read(fd, buffer, &sendlen);
- while (rv == APR_SUCCESS && sendlen) {
- bytes_sent = sendlen;
- rv = apr_send(c->client_socket, &buffer[o], &bytes_sent);
- if (rv == APR_SUCCESS) {
- sendlen -= bytes_sent; /* sendlen != bytes_sent ==> partial write */
- o += bytes_sent; /* o is where we are in the buffer */
- *nbytes += bytes_sent;
- togo -= bytes_sent; /* track how much of the file we've sent */
- }
- }
- }
-
- /* Send the trailers
- * XXX: optimization... if it will fit, send this on the last send in the
- * loop above
- */
- sendlen = 0;
- if ( rv == APR_SUCCESS && hdtr && hdtr->numtrailers > 0 ) {
- for (i = 0; i < hdtr->numtrailers; i++) {
- sendlen += hdtr->trailers[i].iov_len;
- }
- rv = writev_it_all(c->client_socket, hdtr->trailers, hdtr->numtrailers,
- sendlen, &bytes_sent);
- if (rv == APR_SUCCESS)
- *nbytes += bytes_sent;
- }
-
- return rv;
-}
-
-static const char *set_trace_enable(cmd_parms *cmd, void *dummy,
- const char *arg1)
-{
- core_server_config *conf = ap_get_module_config(cmd->server->module_config,
- &core_module);
-
- if (strcasecmp(arg1, "on") == 0) {
- conf->trace_enable = AP_TRACE_ENABLE;
- }
- else if (strcasecmp(arg1, "off") == 0) {
- conf->trace_enable = AP_TRACE_DISABLE;
- }
- else if (strcasecmp(arg1, "extended") == 0) {
- conf->trace_enable = AP_TRACE_EXTENDED;
- }
- else {
- return "TraceEnable must be one of 'on', 'off', or 'extended'";
- }
-
- return NULL;
-}
-
-/* Note --- ErrorDocument will now work from .htaccess files.
- * The AllowOverride of Fileinfo allows webmasters to turn it off
- */
-
-static const command_rec core_cmds[] = {
-
-/* Old access config file commands */
-
-AP_INIT_RAW_ARGS("<Directory", dirsection, NULL, RSRC_CONF,
- "Container for directives affecting resources located in the specified "
- "directories"),
-AP_INIT_RAW_ARGS("<Location", urlsection, NULL, RSRC_CONF,
- "Container for directives affecting resources accessed through the "
- "specified URL paths"),
-AP_INIT_RAW_ARGS("<VirtualHost", virtualhost_section, NULL, RSRC_CONF,
- "Container to map directives to a particular virtual host, takes one or "
- "more host addresses"),
-AP_INIT_RAW_ARGS("<Files", filesection, NULL, OR_ALL,
- "Container for directives affecting files matching specified patterns"),
-AP_INIT_RAW_ARGS("<Limit", ap_limit_section, NULL, OR_ALL,
- "Container for authentication directives when accessed using specified HTTP "
- "methods"),
-AP_INIT_RAW_ARGS("<LimitExcept", ap_limit_section, (void*)1, OR_ALL,
- "Container for authentication directives to be applied when any HTTP "
- "method other than those specified is used to access the resource"),
-AP_INIT_TAKE1("<IfModule", start_ifmod, NULL, EXEC_ON_READ | OR_ALL,
- "Container for directives based on existance of specified modules"),
-AP_INIT_TAKE1("<IfDefine", start_ifdefine, NULL, EXEC_ON_READ | OR_ALL,
- "Container for directives based on existance of command line defines"),
-AP_INIT_RAW_ARGS("<DirectoryMatch", dirsection, (void*)1, RSRC_CONF,
- "Container for directives affecting resources located in the "
- "specified directories"),
-AP_INIT_RAW_ARGS("<LocationMatch", urlsection, (void*)1, RSRC_CONF,
- "Container for directives affecting resources accessed through the "
- "specified URL paths"),
-AP_INIT_RAW_ARGS("<FilesMatch", filesection, (void*)1, OR_ALL,
- "Container for directives affecting files matching specified patterns"),
-AP_INIT_TAKE1("AuthType", ap_set_string_slot,
- (void*)APR_OFFSETOF(core_dir_config, ap_auth_type), OR_AUTHCFG,
- "An HTTP authorization type (e.g., \"Basic\")"),
-AP_INIT_TAKE1("AuthName", set_authname, NULL, OR_AUTHCFG,
- "The authentication realm (e.g. \"Members Only\")"),
-AP_INIT_RAW_ARGS("Require", require, NULL, OR_AUTHCFG,
- "Selects which authenticated users or groups may access a protected space"),
-AP_INIT_TAKE1("Satisfy", satisfy, NULL, OR_AUTHCFG,
- "access policy if both allow and require used ('all' or 'any')"),
-#ifdef GPROF
-AP_INIT_TAKE1("GprofDir", set_gprof_dir, NULL, RSRC_CONF,
- "Directory to plop gmon.out files"),
-#endif
-AP_INIT_TAKE1("AddDefaultCharset", set_add_default_charset, NULL, OR_FILEINFO,
- "The name of the default charset to add to any Content-Type without one or 'Off' to disable"),
-AP_INIT_TAKE1("AcceptPathInfo", set_accept_path_info, NULL, OR_FILEINFO,
- "Set to on or off for PATH_INFO to be accepted by handlers, or default for the per-handler preference"),
-
-/* Old resource config file commands */
-
-AP_INIT_RAW_ARGS("AccessFileName", set_access_name, NULL, RSRC_CONF,
- "Name(s) of per-directory config files (default: .htaccess)"),
-AP_INIT_TAKE1("DocumentRoot", set_document_root, NULL, RSRC_CONF,
- "Root directory of the document tree"),
-AP_INIT_TAKE2("ErrorDocument", set_error_document, NULL, OR_FILEINFO,
- "Change responses for HTTP errors"),
-AP_INIT_RAW_ARGS("AllowOverride", set_override, NULL, ACCESS_CONF,
- "Controls what groups of directives can be configured by per-directory "
- "config files"),
-AP_INIT_RAW_ARGS("Options", set_options, NULL, OR_OPTIONS,
- "Set a number of attributes for a given directory"),
-AP_INIT_TAKE1("DefaultType", ap_set_string_slot,
- (void*)APR_OFFSETOF(core_dir_config, ap_default_type),
- OR_FILEINFO, "the default MIME type for untypable files"),
-AP_INIT_RAW_ARGS("FileETag", set_etag_bits, NULL, OR_FILEINFO,
- "Specify components used to construct a file's ETag"),
-AP_INIT_TAKE1("EnableMMAP", set_enable_mmap, NULL, OR_FILEINFO,
- "Controls whether memory-mapping may be used to read files"),
-AP_INIT_TAKE1("EnableSendfile", set_enable_sendfile, NULL, OR_FILEINFO,
- "Controls whether sendfile may be used to transmit files"),
-
-/* Old server config file commands */
-
-AP_INIT_TAKE1("Port", ap_set_deprecated, NULL, RSRC_CONF,
- "Port was replaced with Listen in Apache 2.0"),
-AP_INIT_TAKE1("HostnameLookups", set_hostname_lookups, NULL,
- ACCESS_CONF|RSRC_CONF,
- "\"on\" to enable, \"off\" to disable reverse DNS lookups, or \"double\" to "
- "enable double-reverse DNS lookups"),
-AP_INIT_TAKE1("ServerAdmin", set_server_string_slot,
- (void *)APR_OFFSETOF(server_rec, server_admin), RSRC_CONF,
- "The email address of the server administrator"),
-AP_INIT_TAKE1("ServerName", server_hostname_port, NULL, RSRC_CONF,
- "The hostname and port of the server"),
-AP_INIT_TAKE1("ServerSignature", set_signature_flag, NULL, OR_ALL,
- "En-/disable server signature (on|off|email)"),
-AP_INIT_TAKE1("ServerRoot", set_server_root, NULL, RSRC_CONF | EXEC_ON_READ,
- "Common directory of server-related files (logs, confs, etc.)"),
-AP_INIT_TAKE1("ErrorLog", set_server_string_slot,
- (void *)APR_OFFSETOF(server_rec, error_fname), RSRC_CONF,
- "The filename of the error log"),
-AP_INIT_RAW_ARGS("ServerAlias", set_server_alias, NULL, RSRC_CONF,
- "A name or names alternately used to access the server"),
-AP_INIT_TAKE1("ServerPath", set_serverpath, NULL, RSRC_CONF,
- "The pathname the server can be reached at"),
-AP_INIT_TAKE1("Timeout", set_timeout, NULL, RSRC_CONF,
- "Timeout duration (sec)"),
-AP_INIT_FLAG("IdentityCheck", set_idcheck, NULL, RSRC_CONF|ACCESS_CONF,
- "Enable identd (RFC 1413) user lookups - SLOW"),
-AP_INIT_FLAG("ContentDigest", set_content_md5, NULL, OR_OPTIONS,
- "whether or not to send a Content-MD5 header with each request"),
-AP_INIT_TAKE1("UseCanonicalName", set_use_canonical_name, NULL,
- RSRC_CONF|ACCESS_CONF,
- "How to work out the ServerName : Port when constructing URLs"),
-/* TODO: RlimitFoo should all be part of mod_cgi, not in the core */
-/* TODO: ListenBacklog in MPM */
-AP_INIT_TAKE1("Include", include_config, NULL,
- (RSRC_CONF | ACCESS_CONF | EXEC_ON_READ),
- "Name of the config file to be included"),
-AP_INIT_TAKE1("LogLevel", set_loglevel, NULL, RSRC_CONF,
- "Level of verbosity in error logging"),
-AP_INIT_TAKE1("NameVirtualHost", ap_set_name_virtual_host, NULL, RSRC_CONF,
- "A numeric IP address:port, or the name of a host"),
-#ifdef _OSD_POSIX
-AP_INIT_TAKE1("BS2000Account", set_bs2000_account, NULL, RSRC_CONF,
- "Name of server User's bs2000 logon account name"),
-#endif
-AP_INIT_TAKE1("ServerTokens", set_serv_tokens, NULL, RSRC_CONF,
- "Determine tokens displayed in the Server: header - Min(imal), OS or Full"),
-AP_INIT_TAKE1("LimitRequestLine", set_limit_req_line, NULL, RSRC_CONF,
- "Limit on maximum size of an HTTP request line"),
-AP_INIT_TAKE1("LimitRequestFieldsize", set_limit_req_fieldsize, NULL,
- RSRC_CONF,
- "Limit on maximum size of an HTTP request header field"),
-AP_INIT_TAKE1("LimitRequestFields", set_limit_req_fields, NULL, RSRC_CONF,
- "Limit (0 = unlimited) on max number of header fields in a request message"),
-AP_INIT_TAKE1("LimitRequestBody", set_limit_req_body,
- (void*)APR_OFFSETOF(core_dir_config, limit_req_body), OR_ALL,
- "Limit (in bytes) on maximum size of request message body"),
-AP_INIT_TAKE1("LimitXMLRequestBody", set_limit_xml_req_body, NULL, OR_ALL,
- "Limit (in bytes) on maximum size of an XML-based request "
- "body"),
-
-/* System Resource Controls */
-#ifdef RLIMIT_CPU
-AP_INIT_TAKE12("RLimitCPU", set_limit_cpu,
- (void*)APR_OFFSETOF(core_dir_config, limit_cpu),
- OR_ALL, "Soft/hard limits for max CPU usage in seconds"),
-#else
-AP_INIT_TAKE12("RLimitCPU", no_set_limit, NULL,
- OR_ALL, "Soft/hard limits for max CPU usage in seconds"),
-#endif
-#if defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined (RLIMIT_AS)
-AP_INIT_TAKE12("RLimitMEM", set_limit_mem,
- (void*)APR_OFFSETOF(core_dir_config, limit_mem),
- OR_ALL, "Soft/hard limits for max memory usage per process"),
-#else
-AP_INIT_TAKE12("RLimitMEM", no_set_limit, NULL,
- OR_ALL, "Soft/hard limits for max memory usage per process"),
-#endif
-#ifdef RLIMIT_NPROC
-AP_INIT_TAKE12("RLimitNPROC", set_limit_nproc,
- (void*)APR_OFFSETOF(core_dir_config, limit_nproc),
- OR_ALL, "soft/hard limits for max number of processes per uid"),
-#else
-AP_INIT_TAKE12("RLimitNPROC", no_set_limit, NULL,
- OR_ALL, "soft/hard limits for max number of processes per uid"),
-#endif
-
-/* internal recursion stopper */
-AP_INIT_TAKE12("LimitInternalRecursion", set_recursion_limit, NULL, RSRC_CONF,
- "maximum recursion depth of internal redirects and subrequests"),
-
-AP_INIT_TAKE1("ForceType", ap_set_string_slot_lower,
- (void *)APR_OFFSETOF(core_dir_config, mime_type), OR_FILEINFO,
- "a mime type that overrides other configured type"),
-AP_INIT_TAKE1("SetHandler", ap_set_string_slot_lower,
- (void *)APR_OFFSETOF(core_dir_config, handler), OR_FILEINFO,
- "a handler name that overrides any other configured handler"),
-AP_INIT_TAKE1("SetOutputFilter", ap_set_string_slot,
- (void *)APR_OFFSETOF(core_dir_config, output_filters), OR_FILEINFO,
- "filter (or ; delimited list of filters) to be run on the request content"),
-AP_INIT_TAKE1("SetInputFilter", ap_set_string_slot,
- (void *)APR_OFFSETOF(core_dir_config, input_filters), OR_FILEINFO,
- "filter (or ; delimited list of filters) to be run on the request body"),
-AP_INIT_ITERATE2("AddOutputFilterByType", add_ct_output_filters,
- (void *)APR_OFFSETOF(core_dir_config, ct_output_filters), OR_FILEINFO,
- "output filter name followed by one or more content-types"),
-AP_INIT_FLAG("AllowEncodedSlashes", set_allow2f, NULL, RSRC_CONF,
- "Allow URLs containing '/' encoded as '%2F'"),
-
-/*
- * These are default configuration directives that mpms can/should
- * pay attention to. If an mpm wishes to use these, they should
- * #defined them in mpm.h.
- */
-#ifdef AP_MPM_WANT_SET_PIDFILE
-AP_INIT_TAKE1("PidFile", ap_mpm_set_pidfile, NULL, RSRC_CONF,
- "A file for logging the server process ID"),
-#endif
-#ifdef AP_MPM_WANT_SET_SCOREBOARD
-AP_INIT_TAKE1("ScoreBoardFile", ap_mpm_set_scoreboard, NULL, RSRC_CONF,
- "A file for Apache to maintain runtime process management information"),
-#endif
-#ifdef AP_MPM_WANT_SET_LOCKFILE
-AP_INIT_TAKE1("LockFile", ap_mpm_set_lockfile, NULL, RSRC_CONF,
- "The lockfile used when Apache needs to lock the accept() call"),
-#endif
-#ifdef AP_MPM_WANT_SET_MAX_REQUESTS
-AP_INIT_TAKE1("MaxRequestsPerChild", ap_mpm_set_max_requests, NULL, RSRC_CONF,
- "Maximum number of requests a particular child serves before dying."),
-#endif
-#ifdef AP_MPM_WANT_SET_COREDUMPDIR
-AP_INIT_TAKE1("CoreDumpDirectory", ap_mpm_set_coredumpdir, NULL, RSRC_CONF,
- "The location of the directory Apache changes to before dumping core"),
-#endif
-#ifdef AP_MPM_WANT_SET_ACCEPT_LOCK_MECH
-AP_INIT_TAKE1("AcceptMutex", ap_mpm_set_accept_lock_mech, NULL, RSRC_CONF,
- ap_valid_accept_mutex_string),
-#endif
-#ifdef AP_MPM_WANT_SET_MAX_MEM_FREE
-AP_INIT_TAKE1("MaxMemFree", ap_mpm_set_max_mem_free, NULL, RSRC_CONF,
- "Maximum number of 1k blocks a particular childs allocator may hold."),
-#endif
-#if AP_ENABLE_EXCEPTION_HOOK
-AP_INIT_TAKE1("EnableExceptionHook", ap_mpm_set_exception_hook, NULL, RSRC_CONF,
- "Controls whether exception hook may be called after a crash"),
-#endif
-AP_INIT_TAKE1("TraceEnable", set_trace_enable, NULL, RSRC_CONF,
- "'on' (default), 'off' or 'extended' to trace request body content"),
-{ NULL }
-};
-
-/*****************************************************************
- *
- * Core handlers for various phases of server operation...
- */
-
-AP_DECLARE_NONSTD(int) ap_core_translate(request_rec *r)
-{
- void *sconf = r->server->module_config;
- core_server_config *conf = ap_get_module_config(sconf, &core_module);
-
- /* XXX this seems too specific, this should probably become
- * some general-case test
- */
- if (r->proxyreq) {
- return HTTP_FORBIDDEN;
- }
- if (!r->uri || ((r->uri[0] != '/') && strcmp(r->uri, "*"))) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
- "Invalid URI in request %s", r->the_request);
- return HTTP_BAD_REQUEST;
- }
-
- if (r->server->path
- && !strncmp(r->uri, r->server->path, r->server->pathlen)
- && (r->server->path[r->server->pathlen - 1] == '/'
- || r->uri[r->server->pathlen] == '/'
- || r->uri[r->server->pathlen] == '\0'))
- {
- /* skip all leading /'s (e.g. http://localhost///foo)
- * so we are looking at only the relative path.
- */
- char *path = r->uri + r->server->pathlen;
- while (*path == '/') {
- ++path;
- }
- if (apr_filepath_merge(&r->filename, conf->ap_document_root, path,
- APR_FILEPATH_TRUENAME
- | APR_FILEPATH_SECUREROOT, r->pool)
- != APR_SUCCESS) {
- return HTTP_FORBIDDEN;
- }
- r->canonical_filename = r->filename;
- }
- else {
- /*
- * Make sure that we do not mess up the translation by adding two
- * /'s in a row. This happens under windows when the document
- * root ends with a /
- */
- /* skip all leading /'s (e.g. http://localhost///foo)
- * so we are looking at only the relative path.
- */
- char *path = r->uri;
- while (*path == '/') {
- ++path;
- }
- if (apr_filepath_merge(&r->filename, conf->ap_document_root, path,
- APR_FILEPATH_TRUENAME
- | APR_FILEPATH_SECUREROOT, r->pool)
- != APR_SUCCESS) {
- return HTTP_FORBIDDEN;
- }
- r->canonical_filename = r->filename;
- }
-
- return OK;
-}
-
-/*****************************************************************
- *
- * Test the filesystem name through directory_walk and file_walk
- */
-static int core_map_to_storage(request_rec *r)
-{
- int access_status;
-
- if ((access_status = ap_directory_walk(r))) {
- return access_status;
- }
-
- if ((access_status = ap_file_walk(r))) {
- return access_status;
- }
-
- return OK;
-}
-
-
-static int do_nothing(request_rec *r) { return OK; }
-
-
-static int core_override_type(request_rec *r)
-{
- core_dir_config *conf =
- (core_dir_config *)ap_get_module_config(r->per_dir_config,
- &core_module);
-
- /* Check for overrides with ForceType / SetHandler
- */
- if (conf->mime_type && strcmp(conf->mime_type, "none"))
- ap_set_content_type(r, (char*) conf->mime_type);
-
- if (conf->handler && strcmp(conf->handler, "none"))
- r->handler = conf->handler;
-
- /* Deal with the poor soul who is trying to force path_info to be
- * accepted within the core_handler, where they will let the subreq
- * address its contents. This is toggled by the user in the very
- * beginning of the fixup phase, so modules should override the user's
- * discretion in their own module fixup phase. It is tristate, if
- * the user doesn't specify, the result is 2 (which the module may
- * interpret to its own customary behavior.) It won't be touched
- * if the value is no longer undefined (2), so any module changing
- * the value prior to the fixup phase OVERRIDES the user's choice.
- */
- if ((r->used_path_info == AP_REQ_DEFAULT_PATH_INFO)
- && (conf->accept_path_info != 3)) {
- r->used_path_info = conf->accept_path_info;
- }
-
- return OK;
-}
-
-
-
-static int default_handler(request_rec *r)
-{
- conn_rec *c = r->connection;
- apr_bucket_brigade *bb;
- apr_bucket *e;
- core_dir_config *d;
- int errstatus;
- apr_file_t *fd = NULL;
- apr_status_t status;
- /* XXX if/when somebody writes a content-md5 filter we either need to
- * remove this support or coordinate when to use the filter vs.
- * when to use this code
- * The current choice of when to compute the md5 here matches the 1.3
- * support fairly closely (unlike 1.3, we don't handle computing md5
- * when the charset is translated).
- */
- int bld_content_md5;
-
- d = (core_dir_config *)ap_get_module_config(r->per_dir_config,
- &core_module);
- bld_content_md5 = (d->content_md5 & 1)
- && r->output_filters->frec->ftype != AP_FTYPE_RESOURCE;
-
- ap_allow_standard_methods(r, MERGE_ALLOW, M_GET, M_OPTIONS, M_POST, -1);
-
- /* If filters intend to consume the request body, they must
- * register an InputFilter to slurp the contents of the POST
- * data from the POST input stream. It no longer exists when
- * the output filters are invoked by the default handler.
- */
- if ((errstatus = ap_discard_request_body(r)) != OK) {
- return errstatus;
- }
-
- if (r->method_number == M_GET || r->method_number == M_POST) {
- if (r->finfo.filetype == 0) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
- "File does not exist: %s", r->filename);
- return HTTP_NOT_FOUND;
- }
-
- /* Don't try to serve a dir. Some OSs do weird things with
- * raw I/O on a dir.
- */
- if (r->finfo.filetype == APR_DIR) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
- "Attempt to serve directory: %s", r->filename);
- return HTTP_NOT_FOUND;
- }
-
- if ((r->used_path_info != AP_REQ_ACCEPT_PATH_INFO) &&
- r->path_info && *r->path_info)
- {
- /* default to reject */
- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
- "File does not exist: %s",
- apr_pstrcat(r->pool, r->filename, r->path_info, NULL));
- return HTTP_NOT_FOUND;
- }
-
- /* We understood the (non-GET) method, but it might not be legal for
- this particular resource. Check to see if the 'deliver_script'
- flag is set. If so, then we go ahead and deliver the file since
- it isn't really content (only GET normally returns content).
-
- Note: based on logic further above, the only possible non-GET
- method at this point is POST. In the future, we should enable
- script delivery for all methods. */
- if (r->method_number != M_GET) {
- core_request_config *req_cfg;
-
- req_cfg = ap_get_module_config(r->request_config, &core_module);
- if (!req_cfg->deliver_script) {
- /* The flag hasn't been set for this request. Punt. */
- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
- "This resource does not accept the %s method.",
- r->method);
- return HTTP_METHOD_NOT_ALLOWED;
- }
- }
-
-
- if ((status = apr_file_open(&fd, r->filename, APR_READ | APR_BINARY
-#if APR_HAS_SENDFILE
- | ((d->enable_sendfile == ENABLE_SENDFILE_OFF)
- ? 0 : APR_SENDFILE_ENABLED)
-#endif
- , 0, r->pool)) != APR_SUCCESS) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR, status, r,
- "file permissions deny server access: %s", r->filename);
- return HTTP_FORBIDDEN;
- }
-
- ap_update_mtime(r, r->finfo.mtime);
- ap_set_last_modified(r);
- ap_set_etag(r);
- apr_table_setn(r->headers_out, "Accept-Ranges", "bytes");
- ap_set_content_length(r, r->finfo.size);
- if ((errstatus = ap_meets_conditions(r)) != OK) {
- apr_file_close(fd);
- return errstatus;
- }
-
- if (bld_content_md5) {
- apr_table_setn(r->headers_out, "Content-MD5",
- ap_md5digest(r->pool, fd));
- }
-
- bb = apr_brigade_create(r->pool, c->bucket_alloc);
-
- /* For platforms where the size of the file may be larger than
- * that which can be stored in a single bucket (whether the
- * length field is an apr_size_t), split it into several
- * buckets */
- if (sizeof(apr_off_t) > sizeof(apr_size_t)
- && r->finfo.size > AP_MAX_SENDFILE) {
- apr_off_t fsize = r->finfo.size;
- e = apr_bucket_file_create(fd, 0, AP_MAX_SENDFILE, r->pool,
- c->bucket_alloc);
- while (fsize > AP_MAX_SENDFILE) {
- apr_bucket *ce;
- apr_bucket_copy(e, &ce);
- APR_BRIGADE_INSERT_TAIL(bb, ce);
- e->start += AP_MAX_SENDFILE;
- fsize -= AP_MAX_SENDFILE;
- }
- e->length = (apr_size_t)fsize; /* Resize just the last bucket */
- }
- else
- e = apr_bucket_file_create(fd, 0, (apr_size_t)r->finfo.size,
- r->pool, c->bucket_alloc);
-
-#if APR_HAS_MMAP
- if (d->enable_mmap == ENABLE_MMAP_OFF) {
- (void)apr_bucket_file_enable_mmap(e, 0);
- }
-#endif
- APR_BRIGADE_INSERT_TAIL(bb, e);
- e = apr_bucket_eos_create(c->bucket_alloc);
- APR_BRIGADE_INSERT_TAIL(bb, e);
-
- status = ap_pass_brigade(r->output_filters, bb);
- if (status == APR_SUCCESS
- || r->status != HTTP_OK
- || c->aborted) {
- return OK; /* r->status will be respected */
- }
- else {
- /* no way to know what type of error occurred */
- ap_log_rerror(APLOG_MARK, APLOG_DEBUG, status, r,
- "default_handler: ap_pass_brigade returned %i",
- status);
- return HTTP_INTERNAL_SERVER_ERROR;
- }
- }
- else { /* unusual method (not GET or POST) */
- if (r->method_number == M_INVALID) {
- ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
- "Invalid method in request %s", r->the_request);
- return HTTP_NOT_IMPLEMENTED;
- }
-
- if (r->method_number == M_OPTIONS) {
- return ap_send_http_options(r);
- }
- return HTTP_METHOD_NOT_ALLOWED;
- }
-}
-
-typedef struct net_time_filter_ctx {
- apr_socket_t *csd;
- int first_line;
-} net_time_filter_ctx_t;
-static int net_time_filter(ap_filter_t *f, apr_bucket_brigade *b,
- ap_input_mode_t mode, apr_read_type_e block,
- apr_off_t readbytes)
-{
- net_time_filter_ctx_t *ctx = f->ctx;
- int keptalive = f->c->keepalive == AP_CONN_KEEPALIVE;
-
- if (!ctx) {
- f->ctx = ctx = apr_palloc(f->r->pool, sizeof(*ctx));
- ctx->first_line = 1;
- ctx->csd = ap_get_module_config(f->c->conn_config, &core_module);
- }
-
- if (mode != AP_MODE_INIT && mode != AP_MODE_EATCRLF) {
- if (keptalive && ctx->first_line) {
- apr_socket_timeout_set(ctx->csd,
- f->c->base_server->keep_alive_timeout);
- ctx->first_line = 0;
- }
- else {
- if (keptalive) {
- apr_socket_timeout_set(ctx->csd, f->c->base_server->timeout);
- }
- }
- }
- return ap_get_brigade(f->next, b, mode, block, readbytes);
-}
-
-/**
- * Remove all zero length buckets from the brigade.
- */
-#define BRIGADE_NORMALIZE(b) \
-do { \
- apr_bucket *e = APR_BRIGADE_FIRST(b); \
- do { \
- if (e->length == 0 && !APR_BUCKET_IS_METADATA(e)) { \
- apr_bucket *d; \
- d = APR_BUCKET_NEXT(e); \
- apr_bucket_delete(e); \
- e = d; \
- } \
- e = APR_BUCKET_NEXT(e); \
- } while (!APR_BRIGADE_EMPTY(b) && (e != APR_BRIGADE_SENTINEL(b))); \
-} while (0)
-
-
-/**
- * Split the contents of a brigade after bucket 'e' to an existing brigade
- *
- * XXXX: Should this function be added to APR-Util?
- */
-static void brigade_move(apr_bucket_brigade *b, apr_bucket_brigade *a,
- apr_bucket *e)
-{
- apr_bucket *f;
-
- if (e != APR_BRIGADE_SENTINEL(b)) {
- f = APR_RING_LAST(&b->list);
- APR_RING_UNSPLICE(e, f, link);
- APR_RING_SPLICE_HEAD(&a->list, e, f, apr_bucket, link);
- }
-
- APR_BRIGADE_CHECK_CONSISTENCY(a);
- APR_BRIGADE_CHECK_CONSISTENCY(b);
-}
-
-
-static int core_input_filter(ap_filter_t *f, apr_bucket_brigade *b,
- ap_input_mode_t mode, apr_read_type_e block,
- apr_off_t readbytes)
-{
- apr_bucket *e;
- apr_status_t rv;
- core_net_rec *net = f->ctx;
- core_ctx_t *ctx = net->in_ctx;
- const char *str;
- apr_size_t len;
-
- if (mode == AP_MODE_INIT) {
- /*
- * this mode is for filters that might need to 'initialize'
- * a connection before reading request data from a client.
- * NNTP over SSL for example needs to handshake before the
- * server sends the welcome message.
- * such filters would have changed the mode before this point
- * is reached. however, protocol modules such as NNTP should
- * not need to know anything about SSL. given the example, if
- * SSL is not in the filter chain, AP_MODE_INIT is a noop.
- */
- return APR_SUCCESS;
- }
-
- if (!ctx)
- {
- ctx = apr_pcalloc(f->c->pool, sizeof(*ctx));
- ctx->b = apr_brigade_create(f->c->pool, f->c->bucket_alloc);
- ctx->tmpbb = apr_brigade_create(ctx->b->p, ctx->b->bucket_alloc);
-
- /* seed the brigade with the client socket. */
- e = apr_bucket_socket_create(net->client_socket, f->c->bucket_alloc);
- APR_BRIGADE_INSERT_TAIL(ctx->b, e);
- net->in_ctx = ctx;
- }
- else if (APR_BRIGADE_EMPTY(ctx->b)) {
- return APR_EOF;
- }
-
- /* ### This is bad. */
- BRIGADE_NORMALIZE(ctx->b);
-
- /* check for empty brigade again *AFTER* BRIGADE_NORMALIZE()
- * If we have lost our socket bucket (see above), we are EOF.
- *
- * Ideally, this should be returning SUCCESS with EOS bucket, but
- * some higher-up APIs (spec. read_request_line via ap_rgetline)
- * want an error code. */
- if (APR_BRIGADE_EMPTY(ctx->b)) {
- return APR_EOF;
- }
-
- if (mode == AP_MODE_GETLINE) {
- /* we are reading a single LF line, e.g. the HTTP headers */
- rv = apr_brigade_split_line(b, ctx->b, block, HUGE_STRING_LEN);
- /* We should treat EAGAIN here the same as we do for EOF (brigade is
- * empty). We do this by returning whatever we have read. This may
- * or may not be bogus, but is consistent (for now) with EOF logic.
- */
- if (APR_STATUS_IS_EAGAIN(rv)) {
- rv = APR_SUCCESS;
- }
- return rv;
- }
-
- /* ### AP_MODE_PEEK is a horrific name for this mode because we also
- * eat any CRLFs that we see. That's not the obvious intention of
- * this mode. Determine whether anyone actually uses this or not. */
- if (mode == AP_MODE_EATCRLF) {
- apr_bucket *e;
- const char *c;
-
- /* The purpose of this loop is to ignore any CRLF (or LF) at the end
- * of a request. Many browsers send extra lines at the end of POST
- * requests. We use the PEEK method to determine if there is more
- * data on the socket, so that we know if we should delay sending the
- * end of one request until we have served the second request in a
- * pipelined situation. We don't want to actually delay sending a
- * response if the server finds a CRLF (or LF), becuause that doesn't
- * mean that there is another request, just a blank line.
- */
- while (1) {
- if (APR_BRIGADE_EMPTY(ctx->b))
- return APR_EOF;
-
- e = APR_BRIGADE_FIRST(ctx->b);
-
- rv = apr_bucket_read(e, &str, &len, APR_NONBLOCK_READ);
-
- if (rv != APR_SUCCESS)
- return rv;
-
- c = str;
- while (c < str + len) {
- if (*c == APR_ASCII_LF)
- c++;
- else if (*c == APR_ASCII_CR && *(c + 1) == APR_ASCII_LF)
- c += 2;
- else
- return APR_SUCCESS;
- }
-
- /* If we reach here, we were a bucket just full of CRLFs, so
- * just toss the bucket. */
- /* FIXME: Is this the right thing to do in the core? */
- apr_bucket_delete(e);
- }
- return APR_SUCCESS;
- }
-
- /* If mode is EXHAUSTIVE, we want to just read everything until the end
- * of the brigade, which in this case means the end of the socket.
- * To do this, we attach the brigade that has currently been setaside to
- * the brigade that was passed down, and send that brigade back.
- *
- * NOTE: This is VERY dangerous to use, and should only be done with
- * extreme caution. However, the Perchild MPM needs this feature
- * if it is ever going to work correctly again. With this, the Perchild
- * MPM can easily request the socket and all data that has been read,
- * which means that it can pass it to the correct child process.
- */
- if (mode == AP_MODE_EXHAUSTIVE) {
- apr_bucket *e;
-
- /* Tack on any buckets that were set aside. */
- APR_BRIGADE_CONCAT(b, ctx->b);
-
- /* Since we've just added all potential buckets (which will most
- * likely simply be the socket bucket) we know this is the end,
- * so tack on an EOS too. */
- /* We have read until the brigade was empty, so we know that we
- * must be EOS. */
- e = apr_bucket_eos_create(f->c->bucket_alloc);
- APR_BRIGADE_INSERT_TAIL(b, e);
- return APR_SUCCESS;
- }
-
- /* read up to the amount they specified. */
- if (mode == AP_MODE_READBYTES || mode == AP_MODE_SPECULATIVE) {
- apr_bucket *e;
-
- AP_DEBUG_ASSERT(readbytes > 0);
-
- e = APR_BRIGADE_FIRST(ctx->b);
- rv = apr_bucket_read(e, &str, &len, block);
-
- if (APR_STATUS_IS_EAGAIN(rv)) {
- return APR_SUCCESS;
- }
- else if (rv != APR_SUCCESS) {
- return rv;
- }
- else if (block == APR_BLOCK_READ && len == 0) {
- /* We wanted to read some bytes in blocking mode. We read
- * 0 bytes. Hence, we now assume we are EOS.
- *
- * When we are in normal mode, return an EOS bucket to the
- * caller.
- * When we are in speculative mode, leave ctx->b empty, so
- * that the next call returns an EOS bucket.
- */
- apr_bucket_delete(e);
-
- if (mode == AP_MODE_READBYTES) {
- e = apr_bucket_eos_create(f->c->bucket_alloc);
- APR_BRIGADE_INSERT_TAIL(b, e);
- }
- return APR_SUCCESS;
- }
-
- /* We can only return at most what we read. */
- if (len < readbytes) {
- readbytes = len;
- }
-
- rv = apr_brigade_partition(ctx->b, readbytes, &e);
- if (rv != APR_SUCCESS) {
- return rv;
- }
-
- /* Must do move before CONCAT */
- brigade_move(ctx->b, ctx->tmpbb, e);
-
- if (mode == AP_MODE_READBYTES) {
- APR_BRIGADE_CONCAT(b, ctx->b);
- }
- else if (mode == AP_MODE_SPECULATIVE) {
- apr_bucket *copy_bucket;
- APR_BRIGADE_FOREACH(e, ctx->b) {
- rv = apr_bucket_copy(e, ©_bucket);
- if (rv != APR_SUCCESS) {
- return rv;
- }
- APR_BRIGADE_INSERT_TAIL(b, copy_bucket);
- }
- }
-
- /* Take what was originally there and place it back on ctx->b */
- APR_BRIGADE_CONCAT(ctx->b, ctx->tmpbb);
- }
- return APR_SUCCESS;
-}
-
-/* Default filter. This filter should almost always be used. Its only job
- * is to send the headers if they haven't already been sent, and then send
- * the actual data.
- */
-#define MAX_IOVEC_TO_WRITE 16
-
-/* Optional function coming from mod_logio, used for logging of output
- * traffic
- */
-static APR_OPTIONAL_FN_TYPE(ap_logio_add_bytes_out) *logio_add_bytes_out;
-
-static apr_status_t core_output_filter(ap_filter_t *f, apr_bucket_brigade *b)
-{
- apr_status_t rv;
- apr_bucket_brigade *more;
- conn_rec *c = f->c;
- core_net_rec *net = f->ctx;
- core_output_filter_ctx_t *ctx = net->out_ctx;
- apr_read_type_e eblock = APR_NONBLOCK_READ;
- apr_pool_t *input_pool = b->p;
-
- /* Fail quickly if the connection has already been aborted. */
- if (c->aborted) {
- apr_brigade_cleanup(b);
- return APR_ECONNABORTED;
- }
-
- if (ctx == NULL) {
- ctx = apr_pcalloc(c->pool, sizeof(*ctx));
- net->out_ctx = ctx;
- }
-
- /* If we have a saved brigade, concatenate the new brigade to it */
- if (ctx->b) {
- APR_BRIGADE_CONCAT(ctx->b, b);
- b = ctx->b;
- ctx->b = NULL;
- }
-
- /* Perform multiple passes over the brigade, sending batches of output
- to the connection. */
- while (b && !APR_BRIGADE_EMPTY(b)) {
- apr_size_t nbytes = 0;
- apr_bucket *last_e = NULL; /* initialized for debugging */
- apr_bucket *e;
-
- /* one group of iovecs per pass over the brigade */
- apr_size_t nvec = 0;
- apr_size_t nvec_trailers = 0;
- struct iovec vec[MAX_IOVEC_TO_WRITE];
- struct iovec vec_trailers[MAX_IOVEC_TO_WRITE];
-
- /* one file per pass over the brigade */
- apr_file_t *fd = NULL;
- apr_size_t flen = 0;
- apr_off_t foffset = 0;
-
- /* keep track of buckets that we've concatenated
- * to avoid small writes
- */
- apr_bucket *last_merged_bucket = NULL;
-
- /* tail of brigade if we need another pass */
- more = NULL;
-
- /* Iterate over the brigade: collect iovecs and/or a file */
- APR_BRIGADE_FOREACH(e, b) {
- /* keep track of the last bucket processed */
- last_e = e;
- if (APR_BUCKET_IS_EOS(e) || AP_BUCKET_IS_EOC(e)) {
- break;
- }
- else if (APR_BUCKET_IS_FLUSH(e)) {
- if (e != APR_BRIGADE_LAST(b)) {
- more = apr_brigade_split(b, APR_BUCKET_NEXT(e));
- }
- break;
- }
-
- /* It doesn't make any sense to use sendfile for a file bucket
- * that represents 10 bytes.
- */
- else if (APR_BUCKET_IS_FILE(e)
- && (e->length >= AP_MIN_SENDFILE_BYTES)) {
- apr_bucket_file *a = e->data;
-
- /* We can't handle more than one file bucket at a time
- * so we split here and send the file we have already
- * found.
- */
- if (fd) {
- more = apr_brigade_split(b, e);
- break;
- }
-
- fd = a->fd;
- flen = e->length;
- foffset = e->start;
- }
- else {
- const char *str;
- apr_size_t n;
-
- rv = apr_bucket_read(e, &str, &n, eblock);
- if (APR_STATUS_IS_EAGAIN(rv)) {
- /* send what we have so far since we shouldn't expect more
- * output for a while... next time we read, block
- */
- more = apr_brigade_split(b, e);
- eblock = APR_BLOCK_READ;
- break;
- }
- eblock = APR_NONBLOCK_READ;
- if (n) {
- if (!fd) {
- if (nvec == MAX_IOVEC_TO_WRITE) {
- /* woah! too many. buffer them up, for use later. */
- apr_bucket *temp, *next;
- apr_bucket_brigade *temp_brig;
-
- if (nbytes >= AP_MIN_BYTES_TO_WRITE) {
- /* We have enough data in the iovec
- * to justify doing a writev
- */
- more = apr_brigade_split(b, e);
- break;
- }
-
- /* Create a temporary brigade as a means
- * of concatenating a bunch of buckets together
- */
- if (last_merged_bucket) {
- /* If we've concatenated together small
- * buckets already in a previous pass,
- * the initial buckets in this brigade
- * are heap buckets that may have extra
- * space left in them (because they
- * were created by apr_brigade_write()).
- * We can take advantage of this by
- * building the new temp brigade out of
- * these buckets, so that the content
- * in them doesn't have to be copied again.
- */
- apr_bucket_brigade *bb;
- bb = apr_brigade_split(b,
- APR_BUCKET_NEXT(last_merged_bucket));
- temp_brig = b;
- b = bb;
- }
- else {
- temp_brig = apr_brigade_create(f->c->pool,
- f->c->bucket_alloc);
- }
-
- temp = APR_BRIGADE_FIRST(b);
- while (temp != e) {
- apr_bucket *d;
- rv = apr_bucket_read(temp, &str, &n, APR_BLOCK_READ);
- apr_brigade_write(temp_brig, NULL, NULL, str, n);
- d = temp;
- temp = APR_BUCKET_NEXT(temp);
- apr_bucket_delete(d);
- }
-
- nvec = 0;
- nbytes = 0;
- temp = APR_BRIGADE_FIRST(temp_brig);
- APR_BUCKET_REMOVE(temp);
- APR_BRIGADE_INSERT_HEAD(b, temp);
- apr_bucket_read(temp, &str, &n, APR_BLOCK_READ);
- vec[nvec].iov_base = (char*) str;
- vec[nvec].iov_len = n;
- nvec++;
-
- /* Just in case the temporary brigade has
- * multiple buckets, recover the rest of
- * them and put them in the brigade that
- * we're sending.
- */
- for (next = APR_BRIGADE_FIRST(temp_brig);
- next != APR_BRIGADE_SENTINEL(temp_brig);
- next = APR_BRIGADE_FIRST(temp_brig)) {
- APR_BUCKET_REMOVE(next);
- APR_BUCKET_INSERT_AFTER(temp, next);
- temp = next;
- apr_bucket_read(next, &str, &n,
- APR_BLOCK_READ);
- vec[nvec].iov_base = (char*) str;
- vec[nvec].iov_len = n;
- nvec++;
- }
-
- apr_brigade_destroy(temp_brig);
-
- last_merged_bucket = temp;
- e = temp;
- last_e = e;
- }
- else {
- vec[nvec].iov_base = (char*) str;
- vec[nvec].iov_len = n;
- nvec++;
- }
- }
- else {
- /* The bucket is a trailer to a file bucket */
-
- if (nvec_trailers == MAX_IOVEC_TO_WRITE) {
- /* woah! too many. stop now. */
- more = apr_brigade_split(b, e);
- break;
- }
-
- vec_trailers[nvec_trailers].iov_base = (char*) str;
- vec_trailers[nvec_trailers].iov_len = n;
- nvec_trailers++;
- }
-
- nbytes += n;
- }
- }
- }
-
-
- /* Completed iterating over the brigade, now determine if we want
- * to buffer the brigade or send the brigade out on the network.
- *
- * Save if we haven't accumulated enough bytes to send, the connection
- * is not about to be closed, and:
- *
- * 1) we didn't see a file, we don't have more passes over the
- * brigade to perform, AND we didn't stop at a FLUSH bucket.
- * (IOW, we will save plain old bytes such as HTTP headers)
- * or
- * 2) we hit the EOS and have a keep-alive connection
- * (IOW, this response is a bit more complex, but we save it
- * with the hope of concatenating with another response)
- */
- if (nbytes + flen < AP_MIN_BYTES_TO_WRITE
- && !AP_BUCKET_IS_EOC(last_e)
- && ((!fd && !more && !APR_BUCKET_IS_FLUSH(last_e))
- || (APR_BUCKET_IS_EOS(last_e)
- && c->keepalive == AP_CONN_KEEPALIVE))) {
-
- /* NEVER save an EOS in here. If we are saving a brigade with
- * an EOS bucket, then we are doing keepalive connections, and
- * we want to process to second request fully.
- */
- if (APR_BUCKET_IS_EOS(last_e)) {
- apr_bucket *bucket;
- int file_bucket_saved = 0;
- apr_bucket_delete(last_e);
- for (bucket = APR_BRIGADE_FIRST(b);
- bucket != APR_BRIGADE_SENTINEL(b);
- bucket = APR_BUCKET_NEXT(bucket)) {
-
- /* Do a read on each bucket to pull in the
- * data from pipe and socket buckets, so
- * that we don't leave their file descriptors
- * open indefinitely. Do the same for file
- * buckets, with one exception: allow the
- * first file bucket in the brigade to remain
- * a file bucket, so that we don't end up
- * doing an mmap+memcpy every time a client
- * requests a <8KB file over a keepalive
- * connection.
- */
- if (APR_BUCKET_IS_FILE(bucket) && !file_bucket_saved) {
- file_bucket_saved = 1;
- }
- else {
- const char *buf;
- apr_size_t len = 0;
- rv = apr_bucket_read(bucket, &buf, &len,
- APR_BLOCK_READ);
- if (rv != APR_SUCCESS) {
- ap_log_cerror(APLOG_MARK, APLOG_ERR, rv,
- c, "core_output_filter:"
- " Error reading from bucket.");
- return HTTP_INTERNAL_SERVER_ERROR;
- }
- }
- }
- }
- if (!ctx->deferred_write_pool) {
- apr_pool_create(&ctx->deferred_write_pool, c->pool);
- apr_pool_tag(ctx->deferred_write_pool, "deferred_write");
- }
- ap_save_brigade(f, &ctx->b, &b, ctx->deferred_write_pool);
-
- return APR_SUCCESS;
- }
-
- if (fd) {
- apr_hdtr_t hdtr;
- apr_size_t bytes_sent;
-
-#if APR_HAS_SENDFILE
- apr_int32_t flags = 0;
-#endif
-
- memset(&hdtr, '\0', sizeof(hdtr));
- if (nvec) {
- hdtr.numheaders = nvec;
- hdtr.headers = vec;
- }
-
- if (nvec_trailers) {
- hdtr.numtrailers = nvec_trailers;
- hdtr.trailers = vec_trailers;
- }
-
-#if APR_HAS_SENDFILE
- if (apr_file_flags_get(fd) & APR_SENDFILE_ENABLED) {
-
- if (c->keepalive == AP_CONN_CLOSE && APR_BUCKET_IS_EOS(last_e)) {
- /* Prepare the socket to be reused */
- flags |= APR_SENDFILE_DISCONNECT_SOCKET;
- }
-
- rv = sendfile_it_all(net, /* the network information */
- fd, /* the file to send */
- &hdtr, /* header and trailer iovecs */
- foffset, /* offset in the file to begin
- sending from */
- flen, /* length of file */
- nbytes + flen, /* total length including
- headers */
- &bytes_sent, /* how many bytes were
- sent */
- flags); /* apr_sendfile flags */
-
- if (logio_add_bytes_out && bytes_sent > 0)
- logio_add_bytes_out(c, bytes_sent);
- }
- else
-#endif
- {
- rv = emulate_sendfile(net, fd, &hdtr, foffset, flen,
- &bytes_sent);
-
- if (logio_add_bytes_out && bytes_sent > 0)
- logio_add_bytes_out(c, bytes_sent);
- }
-
- fd = NULL;
- }
- else {
- apr_size_t bytes_sent;
-
- rv = writev_it_all(net->client_socket,
- vec, nvec,
- nbytes, &bytes_sent);
-
- if (logio_add_bytes_out && bytes_sent > 0)
- logio_add_bytes_out(c, bytes_sent);
- }
-
- apr_brigade_destroy(b);
-
- /* drive cleanups for resources which were set aside
- * this may occur before or after termination of the request which
- * created the resource
- */
- if (ctx->deferred_write_pool) {
- if (more && more->p == ctx->deferred_write_pool) {
- /* "more" belongs to the deferred_write_pool,
- * which is about to be cleared.
- */
- if (APR_BRIGADE_EMPTY(more)) {
- more = NULL;
- }
- else {
- /* uh oh... change more's lifetime
- * to the input brigade's lifetime
- */
- apr_bucket_brigade *tmp_more = more;
- more = NULL;
- ap_save_brigade(f, &more, &tmp_more, input_pool);
- }
- }
- apr_pool_clear(ctx->deferred_write_pool);
- }
-
- if (rv != APR_SUCCESS) {
- ap_log_cerror(APLOG_MARK, APLOG_INFO, rv, c,
- "core_output_filter: writing data to the network");
-
- if (more)
- apr_brigade_destroy(more);
-
- /* No need to check for SUCCESS, we did that above. */
- if (!APR_STATUS_IS_EAGAIN(rv)) {
- c->aborted = 1;
- return APR_ECONNABORTED;
- }
-
- return APR_SUCCESS;
- }
-
- b = more;
- more = NULL;
- } /* end while () */
-
- return APR_SUCCESS;
-}
-
-static int core_post_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s)
-{
- logio_add_bytes_out = APR_RETRIEVE_OPTIONAL_FN(ap_logio_add_bytes_out);
-
- ap_set_version(pconf);
- ap_setup_make_content_type(pconf);
- return OK;
-}
-
-static void core_insert_filter(request_rec *r)
-{
- core_dir_config *conf = (core_dir_config *)
- ap_get_module_config(r->per_dir_config,
- &core_module);
- const char *filter, *filters = conf->output_filters;
-
- if (filters) {
- while (*filters && (filter = ap_getword(r->pool, &filters, ';'))) {
- ap_add_output_filter(filter, NULL, r, r->connection);
- }
- }
-
- filters = conf->input_filters;
- if (filters) {
- while (*filters && (filter = ap_getword(r->pool, &filters, ';'))) {
- ap_add_input_filter(filter, NULL, r, r->connection);
- }
- }
-}
-
-static apr_size_t num_request_notes = AP_NUM_STD_NOTES;
-
-static apr_status_t reset_request_notes(void *dummy)
-{
- num_request_notes = AP_NUM_STD_NOTES;
- return APR_SUCCESS;
-}
-
-AP_DECLARE(apr_size_t) ap_register_request_note(void)
-{
- apr_pool_cleanup_register(apr_hook_global_pool, NULL, reset_request_notes,
- apr_pool_cleanup_null);
- return num_request_notes++;
-}
-
-AP_DECLARE(void **) ap_get_request_note(request_rec *r, apr_size_t note_num)
-{
- core_request_config *req_cfg;
-
- if (note_num >= num_request_notes) {
- return NULL;
- }
-
- req_cfg = (core_request_config *)
- ap_get_module_config(r->request_config, &core_module);
-
- if (!req_cfg) {
- return NULL;
- }
-
- return &(req_cfg->notes[note_num]);
-}
-
-static int core_create_req(request_rec *r)
-{
- /* Alloc the config struct and the array of request notes in
- * a single block for efficiency
- */
- core_request_config *req_cfg;
-
- req_cfg = apr_pcalloc(r->pool, sizeof(core_request_config) +
- sizeof(void *) * num_request_notes);
- req_cfg->notes = (void **)((char *)req_cfg + sizeof(core_request_config));
-
- /* ### temporarily enable script delivery as the default */
- req_cfg->deliver_script = 1;
-
- if (r->main) {
- core_request_config *main_req_cfg = (core_request_config *)
- ap_get_module_config(r->main->request_config, &core_module);
- req_cfg->bb = main_req_cfg->bb;
- }
- else {
- req_cfg->bb = apr_brigade_create(r->pool, r->connection->bucket_alloc);
- if (!r->prev) {
- ap_add_input_filter_handle(ap_net_time_filter_handle,
- NULL, r, r->connection);
- }
- }
-
- ap_set_module_config(r->request_config, &core_module, req_cfg);
-
- /* Begin by presuming any module can make its own path_info assumptions,
- * until some module interjects and changes the value.
- */
- r->used_path_info = AP_REQ_DEFAULT_PATH_INFO;
-
- return OK;
-}
-
-static int core_create_proxy_req(request_rec *r, request_rec *pr)
-{
- return core_create_req(pr);
-}
-
-static conn_rec *core_create_conn(apr_pool_t *ptrans, server_rec *server,
- apr_socket_t *csd, long id, void *sbh,
- apr_bucket_alloc_t *alloc)
-{
- apr_status_t rv;
- conn_rec *c = (conn_rec *) apr_pcalloc(ptrans, sizeof(conn_rec));
-
- c->sbh = sbh;
- (void)ap_update_child_status(c->sbh, SERVER_BUSY_READ, (request_rec *)NULL);
-
- /* Got a connection structure, so initialize what fields we can
- * (the rest are zeroed out by pcalloc).
- */
- c->conn_config = ap_create_conn_config(ptrans);
- c->notes = apr_table_make(ptrans, 5);
-
- c->pool = ptrans;
- if ((rv = apr_socket_addr_get(&c->local_addr, APR_LOCAL, csd))
- != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_INFO, rv, server,
- "apr_socket_addr_get(APR_LOCAL)");
- apr_socket_close(csd);
- return NULL;
- }
-
- apr_sockaddr_ip_get(&c->local_ip, c->local_addr);
- if ((rv = apr_socket_addr_get(&c->remote_addr, APR_REMOTE, csd))
- != APR_SUCCESS) {
- ap_log_error(APLOG_MARK, APLOG_INFO, rv, server,
- "apr_socket_addr_get(APR_REMOTE)");
- apr_socket_close(csd);
- return NULL;
- }
-
- apr_sockaddr_ip_get(&c->remote_ip, c->remote_addr);
- c->base_server = server;
-
- c->id = id;
- c->bucket_alloc = alloc;
-
- return c;
-}
-
-static int core_pre_connection(conn_rec *c, void *csd)
-{
- core_net_rec *net = apr_palloc(c->pool, sizeof(*net));
- apr_status_t rv;
-
-#ifdef AP_MPM_DISABLE_NAGLE_ACCEPTED_SOCK
- /* BillS says perhaps this should be moved to the MPMs. Some OSes
- * allow listening socket attributes to be inherited by the
- * accept sockets which means this call only needs to be made
- * once on the listener
- */
- /* The Nagle algorithm says that we should delay sending partial
- * packets in hopes of getting more data. We don't want to do
- * this; we are not telnet. There are bad interactions between
- * persistent connections and Nagle's algorithm that have very severe
- * performance penalties. (Failing to disable Nagle is not much of a
- * problem with simple HTTP.)
- */
- rv = apr_socket_opt_set(csd, APR_TCP_NODELAY, 1);
- if (rv != APR_SUCCESS && rv != APR_ENOTIMPL) {
- /* expected cause is that the client disconnected already,
- * hence the debug level
- */
- ap_log_cerror(APLOG_MARK, APLOG_DEBUG, rv, c,
- "apr_socket_opt_set(APR_TCP_NODELAY)");
- }
-#endif
-
- /* The core filter requires the timeout mode to be set, which
- * incidentally sets the socket to be nonblocking. If this
- * is not initialized correctly, Linux - for example - will
- * be initially blocking, while Solaris will be non blocking
- * and any initial read will fail.
- */
- rv = apr_socket_timeout_set(csd, c->base_server->timeout);
- if (rv != APR_SUCCESS) {
- /* expected cause is that the client disconnected already */
- ap_log_cerror(APLOG_MARK, APLOG_DEBUG, rv, c,
- "apr_socket_timeout_set");
- }
-
- net->c = c;
- net->in_ctx = NULL;
- net->out_ctx = NULL;
- net->client_socket = csd;
-
- ap_set_module_config(net->c->conn_config, &core_module, csd);
- ap_add_input_filter_handle(ap_core_input_filter_handle, net, NULL, net->c);
- ap_add_output_filter_handle(ap_core_output_filter_handle, net, NULL, net->c);
- return DONE;
-}
-
-static void register_hooks(apr_pool_t *p)
-{
- /* create_connection and install_transport_filters are
- * hooks that should always be APR_HOOK_REALLY_LAST to give other
- * modules the opportunity to install alternate network transports
- * and stop other functions from being run.
- */
- ap_hook_create_connection(core_create_conn, NULL, NULL,
- APR_HOOK_REALLY_LAST);
- ap_hook_pre_connection(core_pre_connection, NULL, NULL,
- APR_HOOK_REALLY_LAST);
-
- ap_hook_post_config(core_post_config,NULL,NULL,APR_HOOK_REALLY_FIRST);
- ap_hook_translate_name(ap_core_translate,NULL,NULL,APR_HOOK_REALLY_LAST);
- ap_hook_map_to_storage(core_map_to_storage,NULL,NULL,APR_HOOK_REALLY_LAST);
- ap_hook_open_logs(ap_open_logs,NULL,NULL,APR_HOOK_REALLY_FIRST);
- ap_hook_child_init(ap_logs_child_init,NULL,NULL,APR_HOOK_MIDDLE);
- ap_hook_handler(default_handler,NULL,NULL,APR_HOOK_REALLY_LAST);
- /* FIXME: I suspect we can eliminate the need for these do_nothings - Ben */
- ap_hook_type_checker(do_nothing,NULL,NULL,APR_HOOK_REALLY_LAST);
- ap_hook_fixups(core_override_type,NULL,NULL,APR_HOOK_REALLY_FIRST);
- ap_hook_access_checker(do_nothing,NULL,NULL,APR_HOOK_REALLY_LAST);
- ap_hook_create_request(core_create_req, NULL, NULL, APR_HOOK_MIDDLE);
- APR_OPTIONAL_HOOK(proxy, create_req, core_create_proxy_req, NULL, NULL,
- APR_HOOK_MIDDLE);
- ap_hook_pre_mpm(ap_create_scoreboard, NULL, NULL, APR_HOOK_MIDDLE);
-
- /* register the core's insert_filter hook and register core-provided
- * filters
- */
- ap_hook_insert_filter(core_insert_filter, NULL, NULL, APR_HOOK_MIDDLE);
-
- ap_core_input_filter_handle =
- ap_register_input_filter("CORE_IN", core_input_filter,
- NULL, AP_FTYPE_NETWORK);
- ap_net_time_filter_handle =
- ap_register_input_filter("NET_TIME", net_time_filter,
- NULL, AP_FTYPE_PROTOCOL);
- ap_content_length_filter_handle =
- ap_register_output_filter("CONTENT_LENGTH", ap_content_length_filter,
- NULL, AP_FTYPE_PROTOCOL);
- ap_core_output_filter_handle =
- ap_register_output_filter("CORE", core_output_filter,
- NULL, AP_FTYPE_NETWORK);
- ap_subreq_core_filter_handle =
- ap_register_output_filter("SUBREQ_CORE", ap_sub_req_output_filter,
- NULL, AP_FTYPE_CONTENT_SET);
- ap_old_write_func =
- ap_register_output_filter("OLD_WRITE", ap_old_write_filter,
- NULL, AP_FTYPE_RESOURCE - 10);
-}
-
-AP_DECLARE_DATA module core_module = {
- STANDARD20_MODULE_STUFF,
- create_core_dir_config, /* create per-directory config structure */
- merge_core_dir_configs, /* merge per-directory config structures */
- create_core_server_config, /* create per-server config structure */
- merge_core_server_configs, /* merge per-server config structures */
- core_cmds, /* command apr_table_t */
- register_hooks /* register hooks */
-};
-
Code Review / bottlenecks.git / blobdiff