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Diffstat (limited to 'server/core.c')
| -rw-r--r-- | server/core.c | 3336 |
1 files changed, 0 insertions, 3336 deletions
diff --git a/server/core.c b/server/core.c deleted file mode 100644 index 092eb62f09..0000000000 --- a/server/core.c +++ /dev/null @@ -1,3336 +0,0 @@ -/* ==================================================================== - * The Apache Software License, Version 1.1 - * - * Copyright (c) 2000-2001 The Apache Software Foundation. All rights - * reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The end-user documentation included with the redistribution, - * if any, must include the following acknowledgment: - * "This product includes software developed by the - * Apache Software Foundation (http://www.apache.org/)." - * Alternately, this acknowledgment may appear in the software itself, - * if and wherever such third-party acknowledgments normally appear. - * - * 4. The names "Apache" and "Apache Software Foundation" must - * not be used to endorse or promote products derived from this - * software without prior written permission. For written - * permission, please contact apache@apache.org. - * - * 5. Products derived from this software may not be called "Apache", - * nor may "Apache" appear in their name, without prior written - * permission of the Apache Software Foundation. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * ==================================================================== - * - * This software consists of voluntary contributions made by many - * individuals on behalf of the Apache Software Foundation. For more - * information on the Apache Software Foundation, please see - * <http://www.apache.org/>. - * - * Portions of this software are based upon public domain software - * originally written at the National Center for Supercomputing Applications, - * University of Illinois, Urbana-Champaign. - */ - -#include "apr.h" -#include "apr_strings.h" -#include "apr_lib.h" -#include "apr_fnmatch.h" -#include "apr_thread_proc.h" /* for RLIMIT stuff */ - -#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 "mod_core.h" - - -/* LimitXMLRequestBody handling */ -#define AP_LIMIT_UNSET ((long) -1) -#define AP_DEFAULT_LIMIT_XML_BODY ((size_t)1000000) - -#define AP_MIN_SENDFILE_BYTES (256) - -/* 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. - */ - -static void *create_core_dir_config(apr_pool_t *a, char *dir) -{ - core_dir_config *conf; - - conf = (core_dir_config *)apr_pcalloc(a, sizeof(core_dir_config)); - if (!dir || dir[strlen(dir) - 1] == '/') { - conf->d = dir; - } - else if (strncmp(dir, "proxy:", 6) == 0) { - conf->d = apr_pstrdup(a, dir); - } - else { - conf->d = apr_pstrcat(a, dir, "/", NULL); - } - conf->d_is_fnmatch = conf->d ? (apr_is_fnmatch(conf->d) != 0) : 0; - conf->d_components = conf->d ? ap_count_dirs(conf->d) : 0; - - 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->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 = 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 = 0; - conf->limit_xml_body = AP_LIMIT_UNSET; - conf->sec = apr_array_make(a, 2, sizeof(ap_conf_vector_t *)); -#ifdef WIN32 - conf->script_interpreter_source = INTERPRETER_SOURCE_UNSET; -#endif - - conf->server_signature = srv_sig_unset; - - conf->add_default_charset = ADD_DEFAULT_CHARSET_UNSET; - conf->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME; - - conf->output_filters = apr_array_make(a, 2, sizeof(void *)); - conf->input_filters = apr_array_make(a, 2, sizeof(void *)); - return (void *)conf; -} - -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; - - conf = (core_dir_config *)apr_palloc(a, sizeof(core_dir_config)); - memcpy((char *)conf, (const char *)base, sizeof(core_dir_config)); - if (base->response_code_strings) { - 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); - } - - 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 (new->response_code_strings) { - if (conf->response_code_strings == NULL) { - conf->response_code_strings = apr_palloc(a, - sizeof(*conf->response_code_strings) * RESPONSE_CODES); - memcpy(conf->response_code_strings, new->response_code_strings, - sizeof(*conf->response_code_strings) * RESPONSE_CODES); - } - else { - for (i = 0; i < RESPONSE_CODES; ++i) { - if (new->response_code_strings[i] != NULL) { - conf->response_code_strings[i] - = new->response_code_strings[i]; - } - } - } - } - 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->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) { - 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; - - conf->sec = apr_array_append(a, base->sec, new->sec); - - if (new->satisfy != SATISFY_NOSPEC) { - conf->satisfy = new->satisfy; - } - -#ifdef WIN32 - if (new->script_interpreter_source != INTERPRETER_SOURCE_UNSET) { - conf->script_interpreter_source = new->script_interpreter_source; - } -#endif - - 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; - if (new->add_default_charset_name) { - conf->add_default_charset_name = new->add_default_charset_name; - } - } - conf->output_filters = apr_array_append(a, base->output_filters, - new->output_filters); - conf->input_filters = apr_array_append(a, base->input_filters, - new->input_filters); - - 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 = apr_array_make(a, 40, sizeof(ap_conf_vector_t *)); - conf->sec_url = apr_array_make(a, 40, sizeof(ap_conf_vector_t *)); - - 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_pcalloc(p, sizeof(core_server_config)); - *conf = *virt; - 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 = apr_array_append(p, base->sec, virt->sec); - conf->sec_url = apr_array_append(p, base->sec_url, virt->sec_url); - - 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); - - *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); - - *new_space = url_config; -} - -/* core_reorder_directories reorders the directory sections such that the - * 1-component sections come first, then the 2-component, and so on, finally - * followed by the "special" sections. A section is "special" if it's a regex, - * or if it doesn't start with / -- consider proxy: matching. All movements - * are in-order to preserve the ordering of the sections from the config files. - * See directory_walk(). - */ - -#if defined(HAVE_DRIVE_LETTERS) -#define IS_SPECIAL(entry_core) \ - ((entry_core)->r != NULL \ - || ((entry_core)->d[0] != '/' && (entry_core)->d[1] != ':')) -#elif defined(NETWARE) -/* XXX: Fairly certain this is correct... '/' must prefix the path - * or else in the case xyz:/ or abc/xyz:/, '/' must follow the ':'. - * If there is no leading '/' or embedded ':/', then we are special. - */ -#define IS_SPECIAL(entry_core) \ - ((entry_core)->r != NULL \ - || ((entry_core)->d[0] != '/' \ - && strchr((entry_core)->d, ':') \ - && *(strchr((entry_core)->d, ':') + 1) != '/')) -#else -#define IS_SPECIAL(entry_core) \ - ((entry_core)->r != NULL || (entry_core)->d[0] != '/') -#endif - -/* 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 a "special" section has infinite components). - */ -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); - if (IS_SPECIAL(core_a)) { - if (!IS_SPECIAL(core_b)) { - return 1; - } - } - else if (IS_SPECIAL(core_b)) { - return -1; - } - else { - /* we know they're both not special */ - if (core_a->d_components < core_b->d_components) { - return -1; - } - else if (core_a->d_components > core_b->d_components) { - return 1; - } - } - /* Either they're both special, or they're both not special and have the - * same number of components. In any event, we now have to compare - * the minor key. */ - 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; - 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 = sconf->sec; - nelts = sec->nelts; - elts = (ap_conf_vector_t **)sec->elts; - - /* we have to allocate tmp space to do a stable sort */ - apr_pool_create(&tmp, p); - sortbin = apr_palloc(tmp, sec->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; -} - -/* 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 *conf; - - conf = (core_dir_config *)ap_get_module_config(r->per_dir_config, - &core_module); - - if (conf->response_code_strings == NULL) { - return NULL; - } - return conf->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 (sa->ipaddr_len == conn->remote_addr->ipaddr_len && - !memcmp(sa->ipaddr_ptr, conn->remote_addr->ipaddr_ptr, - sa->ipaddr_len)) { - conn->double_reverse = 1; - return; - } -#if APR_HAVE_IPV6 - /* match IPv4-mapped IPv6 addresses with IPv4 A record */ - if (conn->remote_addr->sa.sin.sin_family == APR_INET6 && - sa->sa.sin.sin_family == APR_INET && - IN6_IS_ADDR_V4MAPPED((struct in6_addr *)conn->remote_addr->ipaddr_ptr) && - !memcmp(&((struct in6_addr *)conn->remote_addr->ipaddr_ptr)->s6_addr[12], - sa->ipaddr_ptr, - sizeof (((struct in_addr *)0)->s_addr))) { - conn->double_reverse = 1; - return; - } -#endif - 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)) { - apr_sockaddr_t *remote_addr; - - apr_socket_addr_get(&remote_addr, APR_REMOTE, conn->client_socket); - if (apr_getnameinfo(&conn->remote_host, 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) { - apr_sockaddr_t *local_addr; - - apr_socket_addr_get(&local_addr, APR_LOCAL, conn->client_socket); - if (apr_getnameinfo(&conn->local_host, 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; -} - -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); - - port = r->server->port ? r->server->port : ap_default_port(r); - - if (d->use_canonical_name == USE_CANONICAL_NAME_OFF - || d->use_canonical_name == USE_CANONICAL_NAME_DNS) { - if (r->hostname) { - apr_sockaddr_t *localsa; - - apr_socket_addr_get(&localsa, APR_LOCAL, r->connection->client_socket); - apr_sockaddr_port_get(&port, localsa); - } - } - /* 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 = ap_get_server_name(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(unsigned long) 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); - - return d->limit_req_body; -} - -#ifdef WIN32 -static apr_status_t get_win32_registry_default_value(apr_pool_t *p, HKEY hkey, - char* relativepath, - char **value) -{ - HKEY hkeyOpen; - DWORD type; - DWORD size = 0; - DWORD result = RegOpenKeyEx(hkey, relativepath, 0, - KEY_QUERY_VALUE, &hkeyOpen); - - if (result != ERROR_SUCCESS) - return APR_FROM_OS_ERROR(result); - - /* Read to NULL buffer to determine value size */ - result = RegQueryValueEx(hkeyOpen, "", 0, &type, NULL, &size); - - if (result == ERROR_SUCCESS) { - if ((size < 2) || (type != REG_SZ && type != REG_EXPAND_SZ)) { - result = ERROR_INVALID_PARAMETER; - } - else { - *value = apr_palloc(p, size); - /* Read value based on size query above */ - result = RegQueryValueEx(hkeyOpen, "", 0, &type, *value, &size); - } - } - - /* TODO: This might look fine, but we need to provide some warning - * somewhere that some environment variables may -not- be translated, - * seeing as we may have chopped the environment table down somewhat. - */ - if ((result == ERROR_SUCCESS) && (type == REG_EXPAND_SZ)) - { - char *tmp = *value; - size = ExpandEnvironmentStrings(tmp, *value, 0); - if (size) { - *value = apr_palloc(p, size); - size = ExpandEnvironmentStrings(tmp, *value, size); - } - } - - RegCloseKey(hkeyOpen); - return APR_FROM_OS_ERROR(result); -} - -static char* get_interpreter_from_win32_registry(apr_pool_t *p, const char* ext, - char** arguments, int strict) -{ - char execcgi_path[] = "SHELL\\EXECCGI\\COMMAND"; - char execopen_path[] = "SHELL\\OPEN\\COMMAND"; - char typeName[MAX_PATH]; - int cmdOfName = FALSE; - HKEY hkeyName; - HKEY hkeyType; - DWORD type; - int size; - int result; - char *buffer; - char *s; - - if (!ext) - return NULL; - /* - * Future optimization: - * When the registry is successfully searched, store the strings for - * interpreter and arguments in an ext hash to speed up subsequent look-ups - */ - - /* Open the key associated with the script filetype extension */ - result = RegOpenKeyEx(HKEY_CLASSES_ROOT, ext, 0, KEY_QUERY_VALUE, - &hkeyType); - - if (result != ERROR_SUCCESS) - return NULL; - - /* Retrieve the name of the script filetype extension */ - size = sizeof(typeName); - result = RegQueryValueEx(hkeyType, "", NULL, &type, typeName, &size); - - if (result == ERROR_SUCCESS && type == REG_SZ && typeName[0]) { - /* Open the key associated with the script filetype extension */ - result = RegOpenKeyEx(HKEY_CLASSES_ROOT, typeName, 0, - KEY_QUERY_VALUE, &hkeyName); - - if (result == ERROR_SUCCESS) - cmdOfName = TRUE; - } - - /* Open the key for the script command path by: - * - * 1) the 'named' filetype key for ExecCGI/Command - * 2) the extension's type key for ExecCGI/Command - * - * and if the strict arg is false, then continue trying: - * - * 3) the 'named' filetype key for Open/Command - * 4) the extension's type key for Open/Command - */ - - if (cmdOfName) { - result = get_win32_registry_default_value(p, hkeyName, - execcgi_path, &buffer); - } - - if (!cmdOfName || (result != ERROR_SUCCESS)) { - result = get_win32_registry_default_value(p, hkeyType, - execcgi_path, &buffer); - } - - if (!strict && cmdOfName && (result != ERROR_SUCCESS)) { - result = get_win32_registry_default_value(p, hkeyName, - execopen_path, &buffer); - } - - if (!strict && (result != ERROR_SUCCESS)) { - result = get_win32_registry_default_value(p, hkeyType, - execopen_path, &buffer); - } - - if (cmdOfName) - RegCloseKey(hkeyName); - - RegCloseKey(hkeyType); - - if (result != ERROR_SUCCESS) - return NULL; - - /* - * The canonical way shell command entries are entered in the Win32 - * registry is as follows: - * shell [options] "%1" [args] - * where - * shell - full path name to interpreter or shell to run. - * E.g., c:\usr\local\ntreskit\perl\bin\perl.exe - * options - optional switches - * E.g., \C - * "%1" - Place holder for file to run the shell against. - * Typically quoted. - * options - additional arguments - * E.g., /silent - * - * If we find a %1 or a quoted %1, lop off the remainder to arguments. - */ - if (buffer && *buffer) { - if ((s = strstr(buffer, "\"%1"))) - { - *s = '\0'; - *arguments = s + 4; - } - else if ((s = strstr(buffer, "%1"))) - { - *s = '\0'; - *arguments = buffer + 2; - } - else - *arguments = strchr(buffer, '\0'); - while (**arguments && isspace(**arguments)) - ++*arguments; - } - - return buffer; -} - -AP_DECLARE (file_type_e) ap_get_win32_interpreter(const request_rec *r, - char** interpreter, - char** arguments) -{ - HANDLE hFile; - DWORD nBytesRead; - BOOLEAN bResult; - char buffer[1024]; - core_dir_config *d; - int i; - file_type_e fileType = eFileTypeUNKNOWN; - char *ext = NULL; - char *exename = NULL; - - d = (core_dir_config *)ap_get_module_config(r->per_dir_config, - &core_module); - - /* Find the file extension */ - exename = strrchr(r->filename, '/'); - if (!exename) { - exename = strrchr(r->filename, '\\'); - } - if (!exename) { - exename = r->filename; - } - else { - exename++; - } - ext = strrchr(exename, '.'); - - if (ext && (!strcasecmp(ext,".bat") || !strcasecmp(ext,".cmd"))) - { - char *comspec = getenv("COMSPEC"); - if (comspec) { - *interpreter = apr_pstrcat(r->pool, "\"", comspec, "\" /c ", NULL); - return eFileTypeSCRIPT; - } - ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, 0, r->server, - "Failed to start a '%s' file as a script." APR_EOL_STR - "\tCOMSPEC variable is missing from the environment.", ext); - return eFileTypeUNKNOWN; - } - - /* If the file has an extension and it is not .com and not .exe and - * we've been instructed to search the registry, then do it! - */ - if (ext && strcasecmp(ext,".exe") && strcasecmp(ext,".com") && - (d->script_interpreter_source == INTERPRETER_SOURCE_REGISTRY || - d->script_interpreter_source == INTERPRETER_SOURCE_REGISTRY_STRICT)) { - /* Check the registry */ - int strict = (d->script_interpreter_source - == INTERPRETER_SOURCE_REGISTRY_STRICT); - *interpreter = get_interpreter_from_win32_registry(r->pool, ext, - arguments, strict); - if (*interpreter) - return eFileTypeSCRIPT; - else if (d->script_interpreter_source == INTERPRETER_SOURCE_REGISTRY_STRICT) { - ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, 0, r->server, - "ScriptInterpreterSource config directive set to \"registry-strict\"." APR_EOL_STR - "\tInterpreter not found for files of type '%s'.", ext); - return eFileTypeUNKNOWN; - } - else - { - ap_log_error(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, 0, r->server, - "ScriptInterpreterSource config directive set to \"registry\"." APR_EOL_STR - "\tInterpreter not found for files of type '%s', " - "trying \"script\" method...", ext); - } - } - - /* Need to peek into the file figure out what it really is... */ - /* This is wrong for Unicode FS ... should move to APR */ - hFile = CreateFile(r->filename, GENERIC_READ, FILE_SHARE_READ, NULL, - OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL); - if (hFile == INVALID_HANDLE_VALUE) { - return eFileTypeUNKNOWN; - } - bResult = ReadFile(hFile, (void*) &buffer, sizeof(buffer) - 1, - &nBytesRead, NULL); - if (!bResult || (nBytesRead == 0)) { - ap_log_rerror(APLOG_MARK, APLOG_ERR, GetLastError(), r, - "ReadFile(%s) failed", r->filename); - CloseHandle(hFile); - return eFileTypeUNKNOWN; - } - CloseHandle(hFile); - buffer[nBytesRead] = '\0'; - - /* Script or executable, that is the question... */ - if ((buffer[0] == '#') && (buffer[1] == '!')) { - /* Assuming file is a script since it starts with a shebang */ - fileType = eFileTypeSCRIPT; - for (i = 2; i < sizeof(buffer); i++) { - if ((buffer[i] == '\r') - || (buffer[i] == '\n')) { - break; - } - } - buffer[i] = '\0'; - for (i = 2; buffer[i] == ' ' ; ++i) - ; - *interpreter = apr_pstrdup(r->pool, buffer + i ); - } - else { - /* Not a script, is it an executable? */ - IMAGE_DOS_HEADER *hdr = (IMAGE_DOS_HEADER*)buffer; - if ((nBytesRead >= sizeof(IMAGE_DOS_HEADER)) && (hdr->e_magic == IMAGE_DOS_SIGNATURE)) { - if (hdr->e_lfarlc < 0x40) - fileType = eFileTypeEXE16; - else - fileType = eFileTypeEXE32; - } - else - fileType = eFileTypeUNKNOWN; - } - - return fileType; -} -#endif - -/***************************************************************** - * - * 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 - && cmd->path != NULL) { - return apr_pstrcat(cmd->pool, cmd->cmd->name, gt, - " cannot occur within <Directory/Location/Files> " - "section", 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; - } - - arg = ap_os_canonical_filename(cmd->pool, arg); - if (/* TODO: ap_configtestonly && ap_docrootcheck && */ !ap_is_directory(cmd->pool, arg)) { - if (cmd->server->is_virtual) { - ap_log_perror(APLOG_MARK, APLOG_STARTUP | APLOG_NOERRNO, 0, cmd->pool, - "Warning: DocumentRoot [%s] does not exist", - arg); - } - else { - return "DocumentRoot must be a directory"; - } - } - - conf->ap_document_root = arg; - return NULL; -} - -AP_DECLARE(void) ap_custom_response(request_rec *r, int status, char *string) -{ - core_dir_config *conf = - ap_get_module_config(r->per_dir_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_NOERRNO|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); - } - /* 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; -} - -static const char *satisfy(cmd_parms *cmd, void *c_, const char *arg) -{ - core_dir_config *c=c_; - - if (!strcasecmp(arg, "all")) { - c->satisfy = SATISFY_ALL; - } - else if (!strcasecmp(arg, "any")) { - c->satisfy = SATISFY_ANY; - } - else { - return "Satisfy either 'any' or 'all'."; - } - 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; - int 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 = ap_method_number_of(method); - - if (methnum == M_TRACE && !tog) { - return "TRACE cannot be controlled by <Limit>"; - } - else if (methnum == M_INVALID) { - char **xmethod; - register int i, j, k; - - /* - * Deal with <Limit> by adding the method to the list. - */ - if (!tog) { - if (cmd->limited_xmethods == NULL) { - cmd->limited_xmethods = apr_array_make(cmd->pool, 2, - sizeof(char *)); - } - xmethod = (char **) apr_array_push(cmd->limited_xmethods); - *xmethod = apr_pstrdup(cmd->pool, method); - } - /* - * <LimitExcept>, so remove any/all occurrences of the method - * in the extension array. - */ - else if ((cmd->limited_xmethods != NULL) - && (cmd->limited_xmethods->nelts != 0)) { - xmethod = (char **) cmd->limited_xmethods->elts; - for (i = 0; i < cmd->limited_xmethods->nelts; ) { - if (strcmp(xmethod[i], method) == 0) { - for (j = i, k = i + 1; - k < cmd->limited_xmethods->nelts; - ++j, ++k) { - xmethod[j] = xmethod[k]; - } - cmd->limited_xmethods->nelts--; - } - } - } - } - limited |= (1 << 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; -} - -/* 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); - - cmd->path = ap_getword_conf(cmd->pool, &arg); - cmd->override = OR_ALL|ACCESS_CONF; - - if (thiscmd->cmd_data) { /* <DirectoryMatch> */ - r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE); - } - 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 defined(HAVE_DRIVE_LETTERS) || defined(NETWARE) - else if (strcmp(cmd->path, "/") == 0) { - /* Treat 'default' path / as an inalienable root */ - cmd->path = apr_pstrdup(cmd->pool, cmd->path); - } -#endif -#if defined(HAVE_UNC_PATHS) - else if (strcmp(cmd->path, "//") == 0) { - /* Treat UNC path // as an inalienable root */ - cmd->path = apr_pstrdup(cmd->pool, cmd->path); - } -#endif - else { - /* Ensure that the pathname is canonical */ - cmd->path = ap_os_canonical_filename(cmd->pool, cmd->path); - } - - /* 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; - - 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); - } - else if (!strcmp(cmd->path, "~")) { - cmd->path = ap_getword_conf(cmd->pool, &arg); - r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED); - } - - /* 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_is_fnmatch(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); - } - else if (!strcmp(cmd->path, "~")) { - cmd->path = ap_getword_conf(cmd->pool, &arg); - r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE); - } - else { - /* Ensure that the pathname is canonical */ - cmd->path = ap_os_canonical_filename(cmd->pool, cmd->path); - } - - /* 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_is_fnmatch(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 *add_filter(cmd_parms *cmd, void *dummy, const char *arg) -{ - core_dir_config *conf = dummy; - char **newfilter; - - newfilter = (char **)apr_array_push(conf->output_filters); - *newfilter = apr_pstrdup(cmd->pool, arg); - return NULL; -} - -static const char *add_input_filter(cmd_parms *cmd, void *dummy, const char *arg) -{ - core_dir_config *conf = dummy; - char **newfilter; - - newfilter = (char **)apr_array_push(conf->input_filters); - *newfilter = apr_pstrdup(cmd->pool, arg); - 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_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); - int port; - - if (err != NULL) { - return err; - } - port = atoi(arg); - 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); - } - 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; - } - - arg = ap_os_canonical_filename(cmd->pool, arg); - - if (!ap_is_directory(cmd->pool, arg)) { - return "ServerRoot must be a valid directory"; - } - ap_server_root = arg; - 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 = 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_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_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; - - ap_process_resource_config(cmd->server, - ap_server_root_relative(cmd->pool, name), - &conftree, cmd->pool, cmd->temp_pool); - *(ap_directive_t **)dummy = conftree; - 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_SERVER_BASEVERSION - " Server at <A HREF=\"mailto:", - r->server->server_admin, "\">", - ap_get_server_name(r), "</A> Port ", sport, - "</ADDRESS>\n", NULL); - } - return apr_pstrcat(r->pool, prefix, "<ADDRESS>" AP_SERVER_BASEVERSION - " Server at ", 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_MIN, /* eg: Apache/1.3.0 */ - SrvTk_OS, /* eg: Apache/1.3.0 (UNIX) */ - SrvTk_FULL, /* eg: Apache/1.3.0 (UNIX) PHP/3.0 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(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_MIN) { - ap_add_version_component(pconf, AP_SERVER_BASEVERSION); - } - 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_MIN; - } - 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); - } - if (lim > DEFAULT_LIMIT_REQUEST_LINE) { - return apr_psprintf(cmd->temp_pool, "LimitRequestLine \"%s\" " - "must not exceed the precompiled maximum of %d", - arg, DEFAULT_LIMIT_REQUEST_LINE); - } - 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 (0 = no limit)", - NULL); - } - if (lim > DEFAULT_LIMIT_REQUEST_FIELDSIZE) { - return apr_psprintf(cmd->temp_pool, "LimitRequestFieldsize \"%s\" " - "must not exceed the precompiled maximum of %d", - arg, DEFAULT_LIMIT_REQUEST_FIELDSIZE); - } - 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); - 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 = (unsigned long)strtol(arg, (char **)NULL, 10); - 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; -} - -#ifdef WIN32 -static const char *set_interpreter_source(cmd_parms *cmd, core_dir_config *d, - char *arg) -{ - if (!strcasecmp(arg, "registry")) { - d->script_interpreter_source = INTERPRETER_SOURCE_REGISTRY; - } else if (!strcasecmp(arg, "registry-strict")) { - d->script_interpreter_source = INTERPRETER_SOURCE_REGISTRY_STRICT; - } else if (!strcasecmp(arg, "script")) { - d->script_interpreter_source = INTERPRETER_SOURCE_SHEBANG; - } else { - return apr_pstrcat(cmd->temp_pool, "ScriptInterpreterSource \"", arg, - "\" must be \"registry\", \"registry-strict\" or " - "\"script\"", NULL); - } - return NULL; -} -#endif - -#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_NOERRNO|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 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; - apr_size_t 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(conn_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_int32_t flags) -{ - apr_status_t rv; -#ifdef AP_DEBUG - apr_int32_t timeout = 0; -#endif - - AP_DEBUG_ASSERT((apr_getsocketopt(c->client_socket, APR_SO_TIMEOUT, - &timeout) == APR_SUCCESS) && - timeout > 0); /* socket must be in timeout mode */ - do { - apr_size_t tmplen = file_bytes_left; - - rv = apr_sendfile(c->client_socket, fd, hdtr, &file_offset, &tmplen, - flags); - 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 - -/* - * send_the_file() - * Sends the contents of file fd along with header/trailer bytes, if any, - * to the network. send_the_file 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 send_the_file(conn_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; -} - -/* 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*)XtOffsetOf(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"), - -/* 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*)XtOffsetOf (core_dir_config, ap_default_type), - OR_FILEINFO, "the default MIME type for untypable files"), - -/* Old server config file commands */ - -AP_INIT_TAKE1("Port", server_port, NULL, RSRC_CONF, "A TCP port number"), -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 *)XtOffsetOf (server_rec, server_admin), RSRC_CONF, - "The email address of the server administrator"), -AP_INIT_TAKE1("ServerName", set_server_string_slot, - (void *)XtOffsetOf (server_rec, server_hostname), RSRC_CONF, - "The hostname 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, - "Common directory of server-related files (logs, confs, etc.)"), -AP_INIT_TAKE1("ErrorLog", set_server_string_slot, - (void *)XtOffsetOf (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 -#ifdef WIN32 -AP_INIT_TAKE1("ScriptInterpreterSource", set_interpreter_source, NULL, - OR_FILEINFO, - "Where to find interpreter to run Win32 scripts (Registry or script shebang line)"), -#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*)XtOffsetOf(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*)XtOffsetOf(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*)XtOffsetOf(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*)XtOffsetOf(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 -/* XXX These should be allowable in .htaccess files, but currently it won't - * play well with the Options stuff. Until that is fixed, I would prefer - * to leave it just in the conf file. Other should feel free to disagree - * with me. Rbb. - */ -AP_INIT_ITERATE("SetOutputFilter", add_filter, NULL, ACCESS_CONF, - "filters to be run"), -AP_INIT_ITERATE("SetInputFilter", add_input_filter, NULL, ACCESS_CONF, - "filters to be run on the request body"), -{ 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); - - if (r->proxyreq) { - return HTTP_FORBIDDEN; - } - if ((r->uri[0] != '/') && strcmp(r->uri, "*")) { - ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|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')) { - r->filename = apr_pstrcat(r->pool, conf->ap_document_root, - (r->uri + r->server->pathlen), NULL); - } - 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 / - */ - if ((conf->ap_document_root[strlen(conf->ap_document_root)-1] == '/') - && (*(r->uri) == '/')) { - r->filename = apr_pstrcat(r->pool, conf->ap_document_root, r->uri+1, - NULL); - } - else { - r->filename = apr_pstrcat(r->pool, conf->ap_document_root, r->uri, - NULL); - } - } - - return OK; -} - -static int do_nothing(request_rec *r) { return OK; } - -static int default_handler(request_rec *r) -{ - 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; - - /* - * The old way of doing handlers meant that this handler would - * match literally anything - this way will require handler to - * have a / in the middle, which probably captures the original - * intent, but may cause problems at first - Ben 7th Jan 01 - */ - if(strcmp(r->handler,"default-handler") - && ap_strcmp_match(r->handler,"*/*")) - return DECLINED; - - 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_CONTENT; - - ap_allow_methods(r, MERGE_ALLOW, "GET", "OPTIONS", "POST", NULL); - - if ((errstatus = ap_discard_request_body(r)) != OK) { - return errstatus; - } - - if (r->method_number == M_INVALID) { - ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|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); - } - if (r->method_number == M_PUT) { - return HTTP_METHOD_NOT_ALLOWED; - } - if (r->finfo.filetype == 0 || (r->path_info && *r->path_info)) { - ap_log_rerror(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, 0, r, - "File does not exist: %s",r->path_info ? - apr_pstrcat(r->pool, r->filename, r->path_info, NULL) - : r->filename); - return HTTP_NOT_FOUND; - } - - if (r->method_number != M_GET && r->method_number != M_POST) { - return HTTP_METHOD_NOT_ALLOWED; - } - - if ((status = apr_file_open(&fd, r->filename, APR_READ | APR_BINARY, 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); - e = apr_bucket_file_create(fd, 0, r->finfo.size); - - APR_BRIGADE_INSERT_HEAD(bb, e); - e = apr_bucket_eos_create(); - APR_BRIGADE_INSERT_TAIL(bb, e); - - return ap_pass_brigade(r->output_filters, bb); -} - -static int core_input_filter(ap_filter_t *f, apr_bucket_brigade *b, ap_input_mode_t mode, apr_size_t *readbytes) -{ - apr_bucket *e; - - if (!f->ctx) { /* If we haven't passed up the socket yet... */ - f->ctx = (void *)1; - e = apr_bucket_socket_create(f->c->client_socket); - APR_BRIGADE_INSERT_TAIL(b, e); - return APR_SUCCESS; - } - else { - /* Either some code lost track of the socket - * bucket or we already found out that the - * client closed. - */ - return APR_EOF; - } -} - -/* 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. - */ -typedef struct CORE_OUTPUT_FILTER_CTX { - apr_bucket_brigade *b; -} core_output_filter_ctx_t; - -#define MAX_IOVEC_TO_WRITE 16 - -static apr_status_t core_output_filter(ap_filter_t *f, apr_bucket_brigade *b) -{ - apr_status_t rv; - conn_rec *c = f->c; - core_output_filter_ctx_t *ctx = f->ctx; - - if (ctx == NULL) { - f->ctx = ctx = apr_pcalloc(c->pool, sizeof(core_output_filter_ctx_t)); - } - - /* 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_size_t nbytes = 0; - apr_bucket *e; - - /* tail of brigade if we need another pass */ - apr_bucket_brigade *more = NULL; - - /* 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; - - /* Iterate over the brigade: collect iovecs and/or a file */ - APR_BRIGADE_FOREACH(e, b) { - if (APR_BUCKET_IS_EOS(e) || APR_BUCKET_IS_FLUSH(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, APR_BLOCK_READ); - if (n) { - if (!fd) { - if (nvec == MAX_IOVEC_TO_WRITE) { - /* woah! too many. stop now. */ - more = apr_brigade_split(b, e); - break; - } - 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 brigades, now determine if we want - * to buffer the brigade or send the brigade out on the network. - * - * Save if: - * - * 1) we didn't see a file, we don't have more passes over the - * brigade to perform, we haven't accumulated enough bytes to - * send, AND we didn't stop at a FLUSH bucket. - * (IOW, we will save away plain old bytes) - * 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 ((!fd && !more && - (nbytes + flen < AP_MIN_BYTES_TO_WRITE) && !APR_BUCKET_IS_FLUSH(e)) - || (nbytes + flen < AP_MIN_BYTES_TO_WRITE && APR_BUCKET_IS_EOS(e) && c->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(e)) { - apr_bucket *bucket = NULL; - /* If we are in here, then this request is a keepalive. We - * need to be certain that any data in a bucket is valid - * after the request_pool is cleared. - */ - if (ctx->b == NULL) { - ctx->b = apr_brigade_create(f->c->pool); - } - - APR_BRIGADE_FOREACH(bucket, b) { - const char *str; - apr_size_t n; - - rv = apr_bucket_read(bucket, &str, &n, APR_BLOCK_READ); - - /* This apr_brigade_write does not use a flush function - because we assume that we will not write enough data - into it to cause a flush. However, if we *do* write - "too much", then we could end up with transient - buckets which would suck. This works for now, but is - a bit shaky if changes are made to some of the - buffering sizes. Let's do an assert to prevent - potential future problems... */ - AP_DEBUG_ASSERT(AP_MIN_BYTES_TO_WRITE <= - APR_BUCKET_BUFF_SIZE); - apr_brigade_write(ctx->b, NULL, NULL, str, n); - } - apr_brigade_destroy(b); - } - else { - ap_save_brigade(f, &ctx->b, &b); - } - return APR_SUCCESS; - } - - if (fd) { - apr_hdtr_t hdtr; -#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 (!c->keepalive) { - /* Prepare the socket to be reused */ - flags |= APR_SENDFILE_DISCONNECT_SOCKET; - } - rv = sendfile_it_all(c, /* the connection */ - 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 */ - flags); /* apr_sendfile flags */ - - /* If apr_sendfile() returns APR_ENOTIMPL, call send_the_file() - * to loop on apr_file_read/apr_send to send the file. Our Windows - * binary distributions (which work on Windows 9x/NT) are - * compiled on Windows NT. TransmitFile is not available on - * Windows 95/98 and we discover this at runtime when - * apr_sendfile() returns APR_ENOTIMPL. Having apr_sendfile() - * return APR_ENOTIMPL seems the cleanest way to handle this - * case. - */ - if (rv == APR_ENOTIMPL) -#endif - { - apr_size_t unused_bytes_sent; - - rv = send_the_file(c, fd, &hdtr, foffset, flen, - &unused_bytes_sent); - } - fd = NULL; - } - else { - apr_size_t unused_bytes_sent; - - rv = writev_it_all(c->client_socket, - vec, nvec, - nbytes, &unused_bytes_sent); - } - - apr_brigade_destroy(b); - if (rv != APR_SUCCESS) { - ap_log_error(APLOG_MARK, APLOG_ERR, rv, c->base_server, - "core_output_filter: writing data to the network"); - if (more) - apr_brigade_destroy(more); - if (APR_STATUS_IS_ECONNABORTED(rv) || - APR_STATUS_IS_ECONNRESET(rv)) { - c->aborted = 1; - } - return rv; - } - - b = more; - more = NULL; - } /* end while () */ - - return APR_SUCCESS; -} - -static void core_post_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s) -{ - ap_set_version(pconf); -} - -static void core_open_logs(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s) -{ - ap_open_logs(s, pconf); -} - -static void core_insert_filter(request_rec *r) -{ - int i; - core_dir_config *conf = (core_dir_config *) - ap_get_module_config(r->per_dir_config, - &core_module); - char **items = (char **)conf->output_filters->elts; - - for (i = 0; i < conf->output_filters->nelts; i++) { - char *foobar = items[i]; - ap_add_output_filter(foobar, NULL, r, r->connection); - } - - items = (char **)conf->input_filters->elts; - for (i = 0; i < conf->input_filters->nelts; i++) { - char *foobar = items[i]; - ap_add_input_filter(foobar, NULL, r, r->connection); - } -} - -static int core_create_req(request_rec *r) -{ - if (r->main) { - ap_set_module_config(r->request_config, &core_module, - ap_get_module_config(r->main->request_config, &core_module)); - } - else { - core_request_config *req_cfg; - - req_cfg = apr_pcalloc(r->pool, sizeof(core_request_config)); - req_cfg->bb = apr_brigade_create(r->pool); - ap_set_module_config(r->request_config, &core_module, req_cfg); - } - return OK; -} - -static void register_hooks(apr_pool_t *p) -{ - 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_open_logs(core_open_logs,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 - Ben */ - ap_hook_type_checker(do_nothing,NULL,NULL,APR_HOOK_REALLY_LAST); - ap_hook_access_checker(do_nothing,NULL,NULL,APR_HOOK_REALLY_LAST); - ap_hook_create_request(core_create_req, 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_register_input_filter("CORE_IN", core_input_filter, AP_FTYPE_NETWORK); - ap_register_output_filter("CONTENT_LENGTH", ap_content_length_filter, - AP_FTYPE_HTTP_HEADER); - ap_register_output_filter("CORE", core_output_filter, AP_FTYPE_NETWORK); - ap_register_output_filter("SUBREQ_CORE", ap_sub_req_output_filter, - AP_FTYPE_CONTENT); - ap_register_output_filter("OLD_WRITE", ap_old_write_filter, - AP_FTYPE_CONTENT - 1); -} - -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 */ -}; |