/* ==================================================================== * The Apache Software License, Version 1.1 * * Copyright (c) 2000-2002 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 * . * * 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_hash.h" #include "apr_thread_proc.h" /* for RLIMIT stuff */ #include "apr_hooks.h" #define APR_WANT_IOVEC #define APR_WANT_STRFUNC #define APR_WANT_MEMFUNC #include "apr_want.h" #define CORE_PRIVATE #include "ap_config.h" #include "httpd.h" #include "http_config.h" #include "http_core.h" #include "http_protocol.h" /* For index_of_response(). Grump. */ #include "http_request.h" #include "http_vhost.h" #include "http_main.h" /* For the default_handler below... */ #include "http_log.h" #include "rfc1413.h" #include "util_md5.h" #include "http_connection.h" #include "apr_buckets.h" #include "util_filter.h" #include "util_ebcdic.h" #include "mpm.h" #include "mpm_common.h" #include "scoreboard.h" #include "mod_core.h" #include "mod_proxy.h" #include "ap_listen.h" /* LimitXMLRequestBody handling */ #define AP_LIMIT_UNSET ((long) -1) #define AP_DEFAULT_LIMIT_XML_BODY ((size_t)1000000) #define AP_MIN_SENDFILE_BYTES (256) APR_HOOK_STRUCT( APR_HOOK_LINK(get_mgmt_items) ) AP_IMPLEMENT_HOOK_RUN_ALL(int, get_mgmt_items, (apr_pool_t *p, const char *val, apr_hash_t *ht), (p, val, ht), OK, DECLINED) /* Server core module... This module provides support for really basic * server operations, including options and commands which control the * operation of other modules. Consider this the bureaucracy module. * * The core module also defines handlers, etc., do handle just enough * to allow a server with the core module ONLY to actually serve documents * (though it slaps DefaultType on all of 'em); this was useful in testing, * but may not be worth preserving. * * This file could almost be mod_core.c, except for the stuff which affects * the http_conf_globals. */ /* Handles for core filters */ AP_DECLARE_DATA ap_filter_rec_t *ap_subreq_core_filter_handle; AP_DECLARE_DATA ap_filter_rec_t *ap_core_output_filter_handle; AP_DECLARE_DATA ap_filter_rec_t *ap_content_length_filter_handle; AP_DECLARE_DATA ap_filter_rec_t *ap_net_time_filter_handle; AP_DECLARE_DATA ap_filter_rec_t *ap_core_input_filter_handle; 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)); /* conf->r and conf->d[_*] are initialized by dirsection() or left NULL */ conf->opts = dir ? OPT_UNSET : OPT_UNSET|OPT_ALL; conf->opts_add = conf->opts_remove = OPT_NONE; conf->override = dir ? OR_UNSET : OR_UNSET|OR_ALL; conf->content_md5 = 2; conf->accept_path_info = 3; conf->use_canonical_name = USE_CANONICAL_NAME_UNSET; conf->hostname_lookups = HOSTNAME_LOOKUP_UNSET; conf->do_rfc1413 = DEFAULT_RFC1413 | 2; /* set bit 1 to indicate default */ conf->satisfy = 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_file = apr_array_make(a, 2, sizeof(ap_conf_vector_t *)); conf->server_signature = srv_sig_unset; conf->add_default_charset = ADD_DEFAULT_CHARSET_UNSET; conf->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME; /* Overriding all negotiation */ conf->mime_type = NULL; conf->handler = NULL; conf->output_filters = NULL; conf->input_filters = NULL; /* * Flag for use of inodes in ETags. */ conf->etag_bits = ETAG_UNSET; conf->etag_add = ETAG_UNSET; conf->etag_remove = ETAG_UNSET; conf->enable_mmap = ENABLE_MMAP_UNSET; return (void *)conf; } /* * Overlay one hash table of ct_output_filters onto another */ static void *merge_ct_filters(apr_pool_t *p, const void *key, apr_ssize_t klen, const void *overlay_val, const void *base_val, const void *data) { ap_filter_rec_t *cur; const ap_filter_rec_t *overlay_info = (const ap_filter_rec_t *)overlay_val; const ap_filter_rec_t *base_info = (const ap_filter_rec_t *)base_val; cur = NULL; while (overlay_info) { ap_filter_rec_t *new; new = apr_pcalloc(p, sizeof(ap_filter_rec_t)); new->name = apr_pstrdup(p, overlay_info->name); new->next = cur; cur = new; overlay_info = overlay_info->next; } while (base_info) { ap_filter_rec_t *f; int found = 0; /* We can't have dups. */ f = cur; while (f) { if (!strcasecmp(base_info->name, f->name)) { found = 1; break; } f = f->next; } if (!found) { f = apr_pcalloc(p, sizeof(ap_filter_rec_t)); f->name = apr_pstrdup(p, base_info->name); f->next = cur; cur = f; } base_info = base_info->next; } return cur; } static void *merge_core_dir_configs(apr_pool_t *a, void *basev, void *newv) { core_dir_config *base = (core_dir_config *)basev; core_dir_config *new = (core_dir_config *)newv; core_dir_config *conf; int i; /* Create this conf by duplicating the base, replacing elements * (or creating copies for merging) where new-> values exist. */ conf = (core_dir_config *)apr_palloc(a, sizeof(core_dir_config)); memcpy(conf, base, sizeof(core_dir_config)); conf->d = new->d; conf->d_is_fnmatch = new->d_is_fnmatch; conf->d_components = new->d_components; conf->r = new->r; if (new->opts & OPT_UNSET) { /* there was no explicit setting of new->opts, so we merge * preserve the invariant (opts_add & opts_remove) == 0 */ conf->opts_add = (conf->opts_add & ~new->opts_remove) | new->opts_add; conf->opts_remove = (conf->opts_remove & ~new->opts_add) | new->opts_remove; conf->opts = (conf->opts & ~conf->opts_remove) | conf->opts_add; if ((base->opts & OPT_INCNOEXEC) && (new->opts & OPT_INCLUDES)) { conf->opts = (conf->opts & ~OPT_INCNOEXEC) | OPT_INCLUDES; } } else { /* otherwise we just copy, because an explicit opts setting * overrides all earlier +/- modifiers */ conf->opts = new->opts; conf->opts_add = new->opts_add; conf->opts_remove = new->opts_remove; } if (!(new->override & OR_UNSET)) { conf->override = new->override; } if (new->ap_default_type) { conf->ap_default_type = new->ap_default_type; } if (new->ap_auth_type) { conf->ap_auth_type = new->ap_auth_type; } if (new->ap_auth_name) { conf->ap_auth_name = new->ap_auth_name; } if (new->ap_requires) { conf->ap_requires = new->ap_requires; } if (conf->response_code_strings == NULL) { conf->response_code_strings = new->response_code_strings; } else if (new->response_code_strings != NULL) { /* If we merge, the merge-result must have it's own array */ conf->response_code_strings = apr_palloc(a, sizeof(*conf->response_code_strings) * RESPONSE_CODES); memcpy(conf->response_code_strings, base->response_code_strings, sizeof(*conf->response_code_strings) * RESPONSE_CODES); for (i = 0; i < RESPONSE_CODES; ++i) { if (new->response_code_strings[i] != NULL) { conf->response_code_strings[i] = new->response_code_strings[i]; } } } /* Otherwise we simply use the base->response_code_strings array */ if (new->hostname_lookups != HOSTNAME_LOOKUP_UNSET) { conf->hostname_lookups = new->hostname_lookups; } if ((new->do_rfc1413 & 2) == 0) { conf->do_rfc1413 = new->do_rfc1413; } if ((new->content_md5 & 2) == 0) { conf->content_md5 = new->content_md5; } if (new->accept_path_info != 3) { conf->accept_path_info = new->accept_path_info; } if (new->use_canonical_name != USE_CANONICAL_NAME_UNSET) { conf->use_canonical_name = new->use_canonical_name; } #ifdef RLIMIT_CPU if (new->limit_cpu) { conf->limit_cpu = new->limit_cpu; } #endif #if defined(RLIMIT_DATA) || defined(RLIMIT_VMEM) || defined(RLIMIT_AS) if (new->limit_mem) { conf->limit_mem = new->limit_mem; } #endif #ifdef RLIMIT_NPROC if (new->limit_nproc) { conf->limit_nproc = new->limit_nproc; } #endif if (new->limit_req_body) { conf->limit_req_body = new->limit_req_body; } if (new->limit_xml_body != AP_LIMIT_UNSET) conf->limit_xml_body = new->limit_xml_body; else conf->limit_xml_body = base->limit_xml_body; if (!conf->sec_file) { conf->sec_file = new->sec_file; } else if (new->sec_file) { /* If we merge, the merge-result must have it's own array */ conf->sec_file = apr_array_append(a, base->sec_file, new->sec_file); } /* Otherwise we simply use the base->sec_file array */ if (new->satisfy != SATISFY_NOSPEC) { conf->satisfy = new->satisfy; } if (new->server_signature != srv_sig_unset) { conf->server_signature = new->server_signature; } if (new->add_default_charset != ADD_DEFAULT_CHARSET_UNSET) { conf->add_default_charset = new->add_default_charset; conf->add_default_charset_name = new->add_default_charset_name; } /* Overriding all negotiation */ if (new->mime_type) { conf->mime_type = new->mime_type; } if (new->handler) { conf->handler = new->handler; } if (new->output_filters) { conf->output_filters = new->output_filters; } if (new->input_filters) { conf->input_filters = new->input_filters; } if (conf->ct_output_filters && new->ct_output_filters) { conf->ct_output_filters = apr_hash_merge(a, new->ct_output_filters, conf->ct_output_filters, merge_ct_filters, NULL); } else if (new->ct_output_filters) { conf->ct_output_filters = apr_hash_copy(a, new->ct_output_filters); } else if (conf->ct_output_filters) { /* That memcpy above isn't enough. */ conf->ct_output_filters = apr_hash_copy(a, base->ct_output_filters); } /* * Now merge the setting of the FileETag directive. */ if (new->etag_bits == ETAG_UNSET) { conf->etag_add = (conf->etag_add & (~ new->etag_remove)) | new->etag_add; conf->etag_remove = (conf->opts_remove & (~ new->etag_add)) | new->etag_remove; conf->etag_bits = (conf->etag_bits & (~ conf->etag_remove)) | conf->etag_add; } else { conf->etag_bits = new->etag_bits; conf->etag_add = new->etag_add; conf->etag_remove = new->etag_remove; } if (conf->etag_bits != ETAG_NONE) { conf->etag_bits &= (~ ETAG_NONE); } if (new->enable_mmap != ENABLE_MMAP_UNSET) { conf->enable_mmap = new->enable_mmap; } return (void*)conf; } static void *create_core_server_config(apr_pool_t *a, server_rec *s) { core_server_config *conf; int is_virtual = s->is_virtual; conf = (core_server_config *)apr_pcalloc(a, sizeof(core_server_config)); #ifdef GPROF conf->gprof_dir = NULL; #endif conf->access_name = is_virtual ? NULL : DEFAULT_ACCESS_FNAME; conf->ap_document_root = is_virtual ? NULL : DOCUMENT_LOCATION; conf->sec_dir = apr_array_make(a, 40, sizeof(ap_conf_vector_t *)); conf->sec_url = apr_array_make(a, 40, sizeof(ap_conf_vector_t *)); return (void *)conf; } static void *merge_core_server_configs(apr_pool_t *p, void *basev, void *virtv) { core_server_config *base = (core_server_config *)basev; core_server_config *virt = (core_server_config *)virtv; core_server_config *conf; conf = (core_server_config *)apr_palloc(p, sizeof(core_server_config)); memcpy(conf, virt, sizeof(core_server_config)); if (!conf->access_name) { conf->access_name = base->access_name; } if (!conf->ap_document_root) { conf->ap_document_root = base->ap_document_root; } conf->sec_dir = apr_array_append(p, base->sec_dir, virt->sec_dir); conf->sec_url = apr_array_append(p, base->sec_url, virt->sec_url); return conf; } /* Add per-directory configuration entry (for section); * these are part of the core server config. */ AP_CORE_DECLARE(void) ap_add_per_dir_conf(server_rec *s, void *dir_config) { core_server_config *sconf = ap_get_module_config(s->module_config, &core_module); void **new_space = (void **)apr_array_push(sconf->sec_dir); *new_space = dir_config; } AP_CORE_DECLARE(void) ap_add_per_url_conf(server_rec *s, void *url_config) { core_server_config *sconf = ap_get_module_config(s->module_config, &core_module); void **new_space = (void **)apr_array_push(sconf->sec_url); *new_space = url_config; } AP_CORE_DECLARE(void) ap_add_file_conf(core_dir_config *conf, void *url_config) { void **new_space = (void **)apr_array_push(conf->sec_file); *new_space = url_config; } /* We need to do a stable sort, qsort isn't stable. So to make it stable * we'll be maintaining the original index into the list, and using it * as the minor key during sorting. The major key is the number of * components (where the root component is zero). */ struct reorder_sort_rec { ap_conf_vector_t *elt; int orig_index; }; static int reorder_sorter(const void *va, const void *vb) { const struct reorder_sort_rec *a = va; const struct reorder_sort_rec *b = vb; core_dir_config *core_a; core_dir_config *core_b; core_a = ap_get_module_config(a->elt, &core_module); core_b = ap_get_module_config(b->elt, &core_module); /* a regex always sorts after a non-regex */ if (!core_a->r && core_b->r) { return -1; } else if (core_a->r && !core_b->r) { return 1; } /* we always sort next by the number of components */ if (core_a->d_components < core_b->d_components) { return -1; } else if (core_a->d_components > core_b->d_components) { return 1; } /* They have the same number of components, we now have to compare * the minor key to maintain the original order (from the config.) */ return a->orig_index - b->orig_index; } void ap_core_reorder_directories(apr_pool_t *p, server_rec *s) { core_server_config *sconf; apr_array_header_t *sec_dir; struct reorder_sort_rec *sortbin; int nelts; ap_conf_vector_t **elts; int i; apr_pool_t *tmp; sconf = ap_get_module_config(s->module_config, &core_module); sec_dir = sconf->sec_dir; nelts = sec_dir->nelts; elts = (ap_conf_vector_t **)sec_dir->elts; if (!nelts) { /* simple case of already being sorted... */ /* We're not checking this condition to be fast... we're checking * it to avoid trying to palloc zero bytes, which can trigger some * memory debuggers to barf */ return; } /* we have to allocate tmp space to do a stable sort */ apr_pool_create(&tmp, p); sortbin = apr_palloc(tmp, sec_dir->nelts * sizeof(*sortbin)); for (i = 0; i < nelts; ++i) { sortbin[i].orig_index = i; sortbin[i].elt = elts[i]; } qsort(sortbin, nelts, sizeof(*sortbin), reorder_sorter); /* and now copy back to the original array */ for (i = 0; i < nelts; ++i) { elts[i] = sortbin[i].elt; } apr_pool_destroy(tmp); } /***************************************************************** * * There are some elements of the core config structures in which * other modules have a legitimate interest (this is ugly, but necessary * to preserve NCSA back-compatibility). So, we have a bunch of accessors * here... */ AP_DECLARE(int) ap_allow_options(request_rec *r) { core_dir_config *conf = (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module); return conf->opts; } AP_DECLARE(int) ap_allow_overrides(request_rec *r) { core_dir_config *conf; conf = (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module); return conf->override; } AP_DECLARE(const char *) ap_auth_type(request_rec *r) { core_dir_config *conf; conf = (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module); return conf->ap_auth_type; } AP_DECLARE(const char *) ap_auth_name(request_rec *r) { core_dir_config *conf; conf = (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module); return conf->ap_auth_name; } AP_DECLARE(const char *) ap_default_type(request_rec *r) { core_dir_config *conf; conf = (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module); return conf->ap_default_type ? conf->ap_default_type : DEFAULT_CONTENT_TYPE; } AP_DECLARE(const char *) ap_document_root(request_rec *r) /* Don't use this! */ { core_server_config *conf; conf = (core_server_config *)ap_get_module_config(r->server->module_config, &core_module); return conf->ap_document_root; } AP_DECLARE(const apr_array_header_t *) ap_requires(request_rec *r) { core_dir_config *conf; conf = (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module); return conf->ap_requires; } AP_DECLARE(int) ap_satisfies(request_rec *r) { core_dir_config *conf; conf = (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module); return conf->satisfy; } /* 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 */ static APR_INLINE void do_double_reverse (conn_rec *conn) { apr_sockaddr_t *sa; apr_status_t rv; if (conn->double_reverse) { /* already done */ return; } if (conn->remote_host == NULL || conn->remote_host[0] == '\0') { /* single reverse failed, so don't bother */ conn->double_reverse = -1; return; } rv = apr_sockaddr_info_get(&sa, conn->remote_host, APR_UNSPEC, 0, 0, conn->pool); if (rv == APR_SUCCESS) { while (sa) { if (apr_sockaddr_equal(sa, conn->remote_addr)) { conn->double_reverse = 1; return; } sa = sa->next; } } conn->double_reverse = -1; } AP_DECLARE(const char *) ap_get_remote_host(conn_rec *conn, void *dir_config, int type, int *str_is_ip) { int hostname_lookups; if (str_is_ip) { /* if caller wants to know */ *str_is_ip = 0; } /* If we haven't checked the host name, and we want to */ if (dir_config) { hostname_lookups = ((core_dir_config *)ap_get_module_config(dir_config, &core_module)) ->hostname_lookups; if (hostname_lookups == HOSTNAME_LOOKUP_UNSET) { hostname_lookups = HOSTNAME_LOOKUP_OFF; } } else { /* the default */ hostname_lookups = HOSTNAME_LOOKUP_OFF; } if (type != REMOTE_NOLOOKUP && conn->remote_host == NULL && (type == REMOTE_DOUBLE_REV || hostname_lookups != HOSTNAME_LOOKUP_OFF)) { if (apr_getnameinfo(&conn->remote_host, conn->remote_addr, 0) == APR_SUCCESS) { ap_str_tolower(conn->remote_host); if (hostname_lookups == HOSTNAME_LOOKUP_DOUBLE) { do_double_reverse(conn); if (conn->double_reverse != 1) { conn->remote_host = NULL; } } } /* if failed, set it to the NULL string to indicate error */ if (conn->remote_host == NULL) { conn->remote_host = ""; } } if (type == REMOTE_DOUBLE_REV) { do_double_reverse(conn); if (conn->double_reverse == -1) { return NULL; } } /* * Return the desired information; either the remote DNS name, if found, * or either NULL (if the hostname was requested) or the IP address * (if any identifier was requested). */ if (conn->remote_host != NULL && conn->remote_host[0] != '\0') { return conn->remote_host; } else { if (type == REMOTE_HOST || type == REMOTE_DOUBLE_REV) { return NULL; } else { if (str_is_ip) { /* if caller wants to know */ *str_is_ip = 1; } return conn->remote_ip; } } } AP_DECLARE(const char *) ap_get_remote_logname(request_rec *r) { core_dir_config *dir_conf; if (r->connection->remote_logname != NULL) { return r->connection->remote_logname; } /* If we haven't checked the identity, and we want to */ dir_conf = (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module); if (dir_conf->do_rfc1413 & 1) { return ap_rfc1413(r->connection, r->server); } else { return NULL; } } /* There are two options regarding what the "name" of a server is. The * "canonical" name as defined by ServerName and Port, or the "client's * name" as supplied by a possible Host: header or full URI. We never * trust the port passed in the client's headers, we always use the * port of the actual socket. * * The DNS option to UseCanonicalName causes this routine to do a * reverse lookup on the local IP address of the connection and use * that for the ServerName. This makes its value more reliable while * at the same time allowing Demon's magic virtual hosting to work. * The assumption is that DNS lookups are sufficiently quick... * -- fanf 1998-10-03 */ AP_DECLARE(const char *) ap_get_server_name(request_rec *r) { conn_rec *conn = r->connection; core_dir_config *d; d = (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module); if (d->use_canonical_name == USE_CANONICAL_NAME_OFF) { return r->hostname ? r->hostname : r->server->server_hostname; } if (d->use_canonical_name == USE_CANONICAL_NAME_DNS) { if (conn->local_host == NULL) { if (apr_getnameinfo(&conn->local_host, conn->local_addr, 0) != APR_SUCCESS) conn->local_host = apr_pstrdup(conn->pool, r->server->server_hostname); else { ap_str_tolower(conn->local_host); } } return conn->local_host; } /* default */ return r->server->server_hostname; } AP_DECLARE(apr_port_t) ap_get_server_port(const request_rec *r) { apr_port_t port; core_dir_config *d = (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module); if (d->use_canonical_name == USE_CANONICAL_NAME_OFF || d->use_canonical_name == USE_CANONICAL_NAME_DNS) { /* With UseCanonicalName off Apache will form self-referential * URLs using the hostname and port supplied by the client if * any are supplied (otherwise it will use the canonical name). */ port = r->parsed_uri.port ? r->parsed_uri.port : r->server->port ? r->server->port : ap_default_port(r); } else { /* d->use_canonical_name == USE_CANONICAL_NAME_ON */ /* With UseCanonicalName on (and in all versions prior to 1.3) * Apache will use the hostname and port specified in the * ServerName directive to construct a canonical name for the * server. (If no port was specified in the ServerName * directive, Apache uses the port supplied by the client if * any is supplied, and finally the default port for the protocol * used. */ port = r->server->port ? r->server->port : r->connection->local_addr->port ? r->connection->local_addr->port : ap_default_port(r); } /* default */ return port; } AP_DECLARE(char *) ap_construct_url(apr_pool_t *p, const char *uri, request_rec *r) { unsigned port = ap_get_server_port(r); const char *host = 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(apr_off_t) ap_get_limit_req_body(const request_rec *r) { core_dir_config *d = (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module); return d->limit_req_body; } /***************************************************************** * * Commands... this module handles almost all of the NCSA httpd.conf * commands, but most of the old srm.conf is in the the modules. */ /* returns a parent if it matches the given directive */ static const ap_directive_t * find_parent(const ap_directive_t *dirp, const char *what) { while (dirp->parent != NULL) { dirp = dirp->parent; /* ### it would be nice to have atom-ized directives */ if (strcasecmp(dirp->directive, what) == 0) return dirp; } return NULL; } AP_DECLARE(const char *) ap_check_cmd_context(cmd_parms *cmd, unsigned forbidden) { const char *gt = (cmd->cmd->name[0] == '<' && cmd->cmd->name[strlen(cmd->cmd->name)-1] != '>') ? ">" : ""; const ap_directive_t *found; if ((forbidden & NOT_IN_VIRTUALHOST) && cmd->server->is_virtual) { return apr_pstrcat(cmd->pool, cmd->cmd->name, gt, " cannot occur within section", NULL); } if ((forbidden & NOT_IN_LIMIT) && cmd->limited != -1) { return apr_pstrcat(cmd->pool, cmd->cmd->name, gt, " cannot occur within section", NULL); } if ((forbidden & NOT_IN_DIR_LOC_FILE) == NOT_IN_DIR_LOC_FILE) { if (cmd->path != NULL) { return apr_pstrcat(cmd->pool, cmd->cmd->name, gt, " cannot occur within " "section", NULL); } if (cmd->cmd->req_override & EXEC_ON_READ) { /* EXEC_ON_READ must be NOT_IN_DIR_LOC_FILE, if not, it will * (deliberately) segfault below in the individual tests... */ return NULL; } } if (((forbidden & NOT_IN_DIRECTORY) && ((found = find_parent(cmd->directive, "directive, "directive, "directive, "directive, "directive, "pool, cmd->cmd->name, gt, " cannot occur within ", found->directive, "> section", NULL); } return NULL; } static const char *set_access_name(cmd_parms *cmd, void *dummy, const char *arg) { void *sconf = cmd->server->module_config; core_server_config *conf = ap_get_module_config(sconf, &core_module); const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT); if (err != NULL) { return err; } conf->access_name = apr_pstrdup(cmd->pool, arg); return NULL; } #ifdef GPROF static const char *set_gprof_dir(cmd_parms *cmd, void *dummy, const char *arg) { void *sconf = cmd->server->module_config; core_server_config *conf = ap_get_module_config(sconf, &core_module); const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT); if (err != NULL) { return err; } conf->gprof_dir = apr_pstrdup(cmd->pool, arg); return NULL; } #endif /*GPROF*/ static const char *set_add_default_charset(cmd_parms *cmd, void *d_, const char *arg) { core_dir_config *d = d_; const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT); if (err != NULL) { return err; } if (!strcasecmp(arg, "Off")) { d->add_default_charset = ADD_DEFAULT_CHARSET_OFF; } else if (!strcasecmp(arg, "On")) { d->add_default_charset = ADD_DEFAULT_CHARSET_ON; d->add_default_charset_name = DEFAULT_ADD_DEFAULT_CHARSET_NAME; } else { d->add_default_charset = ADD_DEFAULT_CHARSET_ON; d->add_default_charset_name = arg; } return NULL; } static const char *set_document_root(cmd_parms *cmd, void *dummy, const char *arg) { void *sconf = cmd->server->module_config; core_server_config *conf = ap_get_module_config(sconf, &core_module); const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT); if (err != NULL) { return err; } /* TODO: ap_configtestonly && ap_docrootcheck && */ /* XXX Shouldn't this be relative to ServerRoot ??? */ if (apr_filepath_merge((char**)&conf->ap_document_root, NULL, arg, APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS || !ap_is_directory(cmd->pool, arg)) { if (cmd->server->is_virtual) { ap_log_perror(APLOG_MARK, APLOG_STARTUP, 0, cmd->pool, "Warning: DocumentRoot [%s] does not exist", arg); conf->ap_document_root = arg; } else { return "DocumentRoot must be a directory"; } } return NULL; } AP_DECLARE(void) ap_custom_response(request_rec *r, int status, const char *string) { core_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_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; } /* * Note what data should be used when forming file ETag values. * It would be nicer to do this as an ITERATE, but then we couldn't * remember the +/- state properly. */ static const char *set_etag_bits(cmd_parms *cmd, void *mconfig, const char *args_p) { core_dir_config *cfg; etag_components_t bit; char action; char *token; const char *args; int valid; int first; int explicit; cfg = (core_dir_config *)mconfig; args = args_p; first = 1; explicit = 0; while (args[0] != '\0') { action = '*'; bit = ETAG_UNSET; valid = 1; token = ap_getword_conf(cmd->pool, &args); if ((*token == '+') || (*token == '-')) { action = *token; token++; } else { /* * The occurrence of an absolute setting wipes * out any previous relative ones. The first such * occurrence forgets any inherited ones, too. */ if (first) { cfg->etag_bits = ETAG_UNSET; cfg->etag_add = ETAG_UNSET; cfg->etag_remove = ETAG_UNSET; first = 0; } } if (strcasecmp(token, "None") == 0) { if (action != '*') { valid = 0; } else { cfg->etag_bits = bit = ETAG_NONE; explicit = 1; } } else if (strcasecmp(token, "All") == 0) { if (action != '*') { valid = 0; } else { explicit = 1; cfg->etag_bits = bit = ETAG_ALL; } } else if (strcasecmp(token, "Size") == 0) { bit = ETAG_SIZE; } else if ((strcasecmp(token, "LMTime") == 0) || (strcasecmp(token, "MTime") == 0) || (strcasecmp(token, "LastModified") == 0)) { bit = ETAG_MTIME; } else if (strcasecmp(token, "INode") == 0) { bit = ETAG_INODE; } else { return apr_pstrcat(cmd->pool, "Unknown keyword '", token, "' for ", cmd->cmd->name, " directive", NULL); } if (! valid) { return apr_pstrcat(cmd->pool, cmd->cmd->name, " keyword '", token, "' cannot be used with '+' or '-'", NULL); } if (action == '+') { /* * Make sure it's in the 'add' list and absent from the * 'subtract' list. */ cfg->etag_add |= bit; cfg->etag_remove &= (~ bit); } else if (action == '-') { cfg->etag_remove |= bit; cfg->etag_add &= (~ bit); } else { /* * Non-relative values wipe out any + or - values * accumulated so far. */ cfg->etag_bits |= bit; cfg->etag_add = ETAG_UNSET; cfg->etag_remove = ETAG_UNSET; explicit = 1; } } /* * Any setting at all will clear the 'None' and 'Unset' bits. */ if (cfg->etag_add != ETAG_UNSET) { cfg->etag_add &= (~ ETAG_UNSET); } if (cfg->etag_remove != ETAG_UNSET) { cfg->etag_remove &= (~ ETAG_UNSET); } if (explicit) { cfg->etag_bits &= (~ ETAG_UNSET); if ((cfg->etag_bits & ETAG_NONE) != ETAG_NONE) { cfg->etag_bits &= (~ ETAG_NONE); } } return NULL; } static const char *set_enable_mmap(cmd_parms *cmd, void *d_, const char *arg) { core_dir_config *d = d_; const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT); if (err != NULL) { return err; } if (strcasecmp(arg, "on") == 0) { d->enable_mmap = ENABLE_MMAP_ON; } else if (strcasecmp(arg, "off") == 0) { d->enable_mmap = ENABLE_MMAP_OFF; } else { return "parameter must be 'on' or 'off'"; } return NULL; } static const char *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; apr_int64_t limited = 0; const char *errmsg; const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT); if (err != NULL) { return err; } while (limited_methods[0]) { char *method = ap_getword_conf(cmd->pool, &limited_methods); int methnum; /* check for builtin or module registered method number */ methnum = ap_method_number_of(method); if (methnum == M_TRACE && !tog) { return "TRACE cannot be controlled by "; } else if (methnum == M_INVALID) { /* method has not been registered yet, but resorce restriction * is always checked before method handling, so register it. */ methnum = ap_method_register(cmd->pool, method); } limited |= (AP_METHOD_BIT << methnum); } /* Killing two features with one function, * if (tog == NULL) , else */ cmd->limited = tog ? ~limited : limited; errmsg = ap_walk_config(cmd->directive->first_child, cmd, cmd->context); cmd->limited = -1; return errmsg; } /* XXX: Bogus - need to do this differently (at least OS2/Netware suffer * the same problem!!! * We use this in and , to ensure that * people don't get bitten by wrong-cased regex matches */ #ifdef WIN32 #define USE_ICASE REG_ICASE #else #define USE_ICASE 0 #endif /* * Report a missing-'>' syntax error. */ static char *unclosed_directive(cmd_parms *cmd) { return apr_pstrcat(cmd->pool, cmd->cmd->name, "> directive missing closing '>'", NULL); } static const char *dirsection(cmd_parms *cmd, void *mconfig, const char *arg) { const char *errmsg; const char *endp = ap_strrchr_c(arg, '>'); int old_overrides = cmd->override; char *old_path = cmd->path; core_dir_config *conf; ap_conf_vector_t *new_dir_conf = ap_create_per_dir_config(cmd->pool); regex_t *r = NULL; const command_rec *thiscmd = cmd->cmd; const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT); if (err != NULL) { return err; } if (endp == NULL) { return unclosed_directive(cmd); } arg = apr_pstrndup(cmd->pool, arg, endp - arg); if (!arg) { if (thiscmd->cmd_data) return " block must specify a path"; else return " block must specify a path"; } cmd->path = ap_getword_conf(cmd->pool, &arg); cmd->override = OR_ALL|ACCESS_CONF; if (!strcmp(cmd->path, "~")) { cmd->path = ap_getword_conf(cmd->pool, &arg); if (!cmd->path) return " block must specify a path"; r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE); } else if (thiscmd->cmd_data) { /* */ r = ap_pregcomp(cmd->pool, cmd->path, REG_EXTENDED|USE_ICASE); } else if (!strcmp(cmd->path, "/") == 0) { char *newpath; /* * Ensure that the pathname is canonical, and append the trailing / */ if (apr_filepath_merge(&newpath, NULL, cmd->path, APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS) { return apr_pstrcat(cmd->pool, "path, "\"> path is invalid.", NULL); } cmd->path = newpath; if (cmd->path[strlen(cmd->path) - 1] != '/') cmd->path = apr_pstrcat(cmd->pool, cmd->path, "/", NULL); } /* initialize our config and fetch it */ conf = ap_set_config_vectors(cmd->server, new_dir_conf, cmd->path, &core_module, cmd->pool); errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_dir_conf); if (errmsg != NULL) return errmsg; conf->r = r; conf->d = cmd->path; conf->d_is_fnmatch = (apr_fnmatch_test(conf->d) != 0); /* Make this explicit - the "/" root has 0 elements, that is, we * will always merge it, and it will always sort and merge first. * All others are sorted and tested by the number of slashes. */ if (strcmp(conf->d, "/") == 0) conf->d_components = 0; else conf->d_components = ap_count_dirs(conf->d); ap_add_per_dir_conf(cmd->server, new_dir_conf); if (*arg != '\0') { return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name, "> arguments not (yet) supported.", NULL); } cmd->path = old_path; cmd->override = old_overrides; return NULL; } static const char *urlsection(cmd_parms *cmd, void *mconfig, const char *arg) { const char *errmsg; const char *endp = ap_strrchr_c(arg, '>'); int old_overrides = cmd->override; char *old_path = cmd->path; core_dir_config *conf; regex_t *r = NULL; const command_rec *thiscmd = cmd->cmd; ap_conf_vector_t *new_url_conf = ap_create_per_dir_config(cmd->pool); const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT); if (err != NULL) { return err; } if (endp == NULL) { return unclosed_directive(cmd); } arg = apr_pstrndup(cmd->pool, arg, endp - arg); cmd->path = ap_getword_conf(cmd->pool, &arg); cmd->override = OR_ALL|ACCESS_CONF; if (thiscmd->cmd_data) { /* */ 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_fnmatch_test(conf->d) != 0; conf->r = r; ap_add_per_url_conf(cmd->server, new_url_conf); if (*arg != '\0') { return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name, "> arguments not (yet) supported.", NULL); } cmd->path = old_path; cmd->override = old_overrides; return NULL; } static const char *filesection(cmd_parms *cmd, void *mconfig, const char *arg) { const char *errmsg; const char *endp = ap_strrchr_c(arg, '>'); int old_overrides = cmd->override; char *old_path = cmd->path; core_dir_config *conf; regex_t *r = NULL; const command_rec *thiscmd = cmd->cmd; core_dir_config *c = mconfig; ap_conf_vector_t *new_file_conf = ap_create_per_dir_config(cmd->pool); const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT|NOT_IN_LOCATION); if (err != NULL) { return err; } if (endp == NULL) { return unclosed_directive(cmd); } arg = apr_pstrndup(cmd->pool, arg, endp - arg); cmd->path = ap_getword_conf(cmd->pool, &arg); /* Only if not an .htaccess file */ if (!old_path) { cmd->override = OR_ALL|ACCESS_CONF; } if (thiscmd->cmd_data) { /* */ 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 { char *newpath; /* Ensure that the pathname is canonical, but we * can't test the case/aliases without a fixed path */ if (apr_filepath_merge(&newpath, "", cmd->path, 0, cmd->pool) != APR_SUCCESS) return apr_pstrcat(cmd->pool, "path, "\"> is invalid.", NULL); cmd->path = newpath; } /* initialize our config and fetch it */ conf = ap_set_config_vectors(cmd->server, new_file_conf, cmd->path, &core_module, cmd->pool); errmsg = ap_walk_config(cmd->directive->first_child, cmd, new_file_conf); if (errmsg != NULL) return errmsg; conf->d = cmd->path; conf->d_is_fnmatch = apr_fnmatch_test(conf->d) != 0; conf->r = r; ap_add_file_conf(c, new_file_conf); if (*arg != '\0') { return apr_pstrcat(cmd->pool, "Multiple ", thiscmd->name, "> arguments not (yet) supported.", NULL); } cmd->path = old_path; cmd->override = old_overrides; return NULL; } static const char *start_ifmod(cmd_parms *cmd, void *mconfig, const char *arg) { const char *endp = ap_strrchr_c(arg, '>'); int not = (arg[0] == '!'); module *found; if (endp == NULL) { return unclosed_directive(cmd); } arg = apr_pstrndup(cmd->pool, arg, endp - arg); if (not) { arg++; } found = ap_find_linked_module(arg); if ((!not && found) || (not && !found)) { ap_directive_t *parent = NULL; ap_directive_t *current = NULL; const char *retval; retval = ap_build_cont_config(cmd->pool, cmd->temp_pool, cmd, ¤t, &parent, "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, " 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 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 " 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 "; } while (*arg) { char **item, *name = ap_getword_conf(cmd->pool, &arg); if (ap_is_matchexp(name)) { item = (char **)apr_array_push(cmd->server->wild_names); } else { item = (char **)apr_array_push(cmd->server->names); } *item = name; } return NULL; } static const char *set_server_string_slot(cmd_parms *cmd, void *dummy, const char *arg) { /* This one's pretty generic... */ int offset = (int)(long)cmd->info; char *struct_ptr = (char *)cmd->server; const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT); if (err != NULL) { return err; } *(const char **)(struct_ptr + offset) = arg; return NULL; } static const char *server_hostname_port(cmd_parms *cmd, void *dummy, const char *arg) { const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT); const char *portstr; int port; if (err != NULL) { return err; } portstr = ap_strchr_c(arg, ':'); if (portstr) { cmd->server->server_hostname = apr_pstrndup(cmd->pool, arg, portstr - arg); portstr++; port = atoi(portstr); if (port <= 0 || port >= 65536) { /* 65536 == 1<<16 */ return apr_pstrcat(cmd->temp_pool, "The port number \"", arg, "\" is outside the appropriate range " "(i.e., 1..65535).", NULL); } } else { cmd->server->server_hostname = apr_pstrdup(cmd->pool, arg); port = 0; } cmd->server->port = port; return NULL; } static const char *set_signature_flag(cmd_parms *cmd, void *d_, const char *arg) { core_dir_config *d = d_; const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT); if (err != NULL) { return err; } if (strcasecmp(arg, "On") == 0) { d->server_signature = srv_sig_on; } else if (strcasecmp(arg, "Off") == 0) { d->server_signature = srv_sig_off; } else if (strcasecmp(arg, "EMail") == 0) { d->server_signature = srv_sig_withmail; } else { return "ServerSignature: use one of: off | on | email"; } return NULL; } static const char *set_server_root(cmd_parms *cmd, void *dummy, const char *arg) { const char *err = ap_check_cmd_context(cmd, GLOBAL_ONLY); if (err != NULL) { return err; } if ((apr_filepath_merge((char**)&ap_server_root, NULL, arg, APR_FILEPATH_TRUENAME, cmd->pool) != APR_SUCCESS) || !ap_is_directory(cmd->pool, ap_server_root)) { return "ServerRoot must be a valid directory"; } return NULL; } static const char *set_timeout(cmd_parms *cmd, void *dummy, const char *arg) { const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT); if (err != NULL) { return err; } cmd->server->timeout = apr_time_from_sec(atoi(arg)); return NULL; } static const char *set_idcheck(cmd_parms *cmd, void *d_, int arg) { core_dir_config *d = d_; const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT); if (err != NULL) { return err; } d->do_rfc1413 = arg != 0; return NULL; } static const char *set_hostname_lookups(cmd_parms *cmd, void *d_, const char *arg) { core_dir_config *d = d_; const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT); if (err != NULL) { return err; } if (!strcasecmp(arg, "on")) { d->hostname_lookups = HOSTNAME_LOOKUP_ON; } else if (!strcasecmp(arg, "off")) { d->hostname_lookups = HOSTNAME_LOOKUP_OFF; } else if (!strcasecmp(arg, "double")) { d->hostname_lookups = HOSTNAME_LOOKUP_DOUBLE; } else { return "parameter must be 'on', 'off', or 'double'"; } return NULL; } static const char *set_serverpath(cmd_parms *cmd, void *dummy, const char *arg) { const char *err = ap_check_cmd_context(cmd, NOT_IN_DIR_LOC_FILE|NOT_IN_LIMIT); if (err != NULL) { return err; } cmd->server->path = arg; cmd->server->pathlen = strlen(arg); return NULL; } static const char *set_content_md5(cmd_parms *cmd, void *d_, int arg) { core_dir_config *d = d_; const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT); if (err != NULL) { return err; } d->content_md5 = arg != 0; return NULL; } static const char *set_accept_path_info(cmd_parms *cmd, void *d_, const char *arg) { core_dir_config *d = d_; if (strcasecmp(arg, "on") == 0) { d->accept_path_info = AP_REQ_ACCEPT_PATH_INFO; } else if (strcasecmp(arg, "off") == 0) { d->accept_path_info = AP_REQ_REJECT_PATH_INFO; } else if (strcasecmp(arg, "default") == 0) { d->accept_path_info = AP_REQ_DEFAULT_PATH_INFO; } else { return "AcceptPathInfo must be set to on, off or default"; } return NULL; } static const char *set_use_canonical_name(cmd_parms *cmd, void *d_, const char *arg) { core_dir_config *d = d_; const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT); if (err != NULL) { return err; } if (strcasecmp(arg, "on") == 0) { d->use_canonical_name = USE_CANONICAL_NAME_ON; } else if (strcasecmp(arg, "off") == 0) { d->use_canonical_name = USE_CANONICAL_NAME_OFF; } else if (strcasecmp(arg, "dns") == 0) { d->use_canonical_name = USE_CANONICAL_NAME_DNS; } else { return "parameter must be 'on', 'off', or 'dns'"; } return NULL; } static const char *include_config (cmd_parms *cmd, void *dummy, const char *name) { ap_directive_t *conftree = NULL; const char* conffile = ap_server_root_relative(cmd->pool, name); if (!conffile) { return apr_pstrcat(cmd->pool, "Invalid Include path ", name, NULL); } ap_process_resource_config(cmd->server, conffile, &conftree, cmd->pool, cmd->temp_pool); *(ap_directive_t **)dummy = conftree; 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, "
" AP_SERVER_BASEVERSION " Server at server->server_admin, "\">", ap_get_server_name(r), " Port ", sport, "
\n", NULL); } return apr_pstrcat(r->pool, prefix, "
" AP_SERVER_BASEVERSION " Server at ", ap_get_server_name(r), " Port ", sport, "
\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); char *errp; if (err != NULL) { return err; } /* WTF: If strtoul is not portable, then write a replacement. * Instead we have an idiotic define in httpd.h that prevents * it from being used even when it is available. Sheesh. */ conf->limit_req_body = (apr_off_t)strtol(arg, &errp, 10); if (*errp != '\0') { return "LimitRequestBody requires a non-negative integer."; } return NULL; } static const char *set_limit_xml_req_body(cmd_parms *cmd, void *conf_, const char *arg) { core_dir_config *conf = conf_; const char *err = ap_check_cmd_context(cmd, NOT_IN_LIMIT); if (err != NULL) { return err; } conf->limit_xml_body = atol(arg); if (conf->limit_xml_body < 0) return "LimitXMLRequestBody requires a non-negative integer."; return NULL; } AP_DECLARE(size_t) ap_get_limit_xml_body(const request_rec *r) { core_dir_config *conf; conf = ap_get_module_config(r->per_dir_config, &core_module); if (conf->limit_xml_body == AP_LIMIT_UNSET) return AP_DEFAULT_LIMIT_XML_BODY; return (size_t)conf->limit_xml_body; } #if !defined (RLIMIT_CPU) || !(defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS)) || !defined (RLIMIT_NPROC) static const char *no_set_limit(cmd_parms *cmd, void *conf_, const char *arg, const char *arg2) { ap_log_error(APLOG_MARK, APLOG_ERR, 0, cmd->server, "%s not supported on this platform", cmd->cmd->name); return NULL; } #endif #ifdef RLIMIT_CPU static const char *set_limit_cpu(cmd_parms *cmd, void *conf_, const char *arg, const char *arg2) { core_dir_config *conf = conf_; unixd_set_rlimit(cmd, &conf->limit_cpu, arg, arg2, RLIMIT_CPU); return NULL; } #endif #if defined (RLIMIT_DATA) || defined (RLIMIT_VMEM) || defined(RLIMIT_AS) static const char *set_limit_mem(cmd_parms *cmd, void *conf_, const char *arg, const char * arg2) { core_dir_config *conf = conf_; #if defined(RLIMIT_AS) unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2 ,RLIMIT_AS); #elif defined(RLIMIT_DATA) unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2, RLIMIT_DATA); #elif defined(RLIMIT_VMEM) unixd_set_rlimit(cmd, &conf->limit_mem, arg, arg2, RLIMIT_VMEM); #endif return NULL; } #endif #ifdef RLIMIT_NPROC static const char *set_limit_nproc(cmd_parms *cmd, void *conf_, const char *arg, const char * arg2) { core_dir_config *conf = conf_; unixd_set_rlimit(cmd, &conf->limit_nproc, arg, arg2, RLIMIT_NPROC); return NULL; } #endif static const char *add_ct_output_filters(cmd_parms *cmd, void *conf_, const char *arg, const char *arg2) { core_dir_config *conf = conf_; ap_filter_rec_t *old, *new; if (!conf->ct_output_filters) { conf->ct_output_filters = apr_hash_make(cmd->pool); old = NULL; } else { old = (ap_filter_rec_t*) apr_hash_get(conf->ct_output_filters, arg2, APR_HASH_KEY_STRING); } new = apr_pcalloc(cmd->pool, sizeof(ap_filter_rec_t)); new->name = apr_pstrdup(cmd->pool, arg); /* We found something, so let's append it. */ if (old) { new->next = old; } apr_hash_set(conf->ct_output_filters, arg2, APR_HASH_KEY_STRING, new); return NULL; } /* * Insert filters requested by the AddOutputFiltersByType * configuration directive. We cannot add filters based * on content-type until after the handler has started * to run. Only then do we reliably know the content-type. */ void ap_add_output_filters_by_type(request_rec *r) { core_dir_config *conf; const char *ctype, *ctypes; conf = (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module); /* We can't do anything with proxy requests, no content-types or if * we don't have a filter configured. */ if (r->proxyreq != PROXYREQ_NONE || !r->content_type || !conf->ct_output_filters) { return; } ctypes = r->content_type; /* We must be able to handle decorated content-types. */ while (*ctypes && (ctype = ap_getword(r->pool, &ctypes, ';'))) { ap_filter_rec_t *ct_filter; ct_filter = apr_hash_get(conf->ct_output_filters, ctype, APR_HASH_KEY_STRING); while (ct_filter) { ap_add_output_filter(ct_filter->name, NULL, r, r->connection); ct_filter = ct_filter->next; } } return; } static apr_status_t writev_it_all(apr_socket_t *s, struct iovec *vec, int nvec, apr_size_t len, apr_size_t *nbytes) { apr_size_t bytes_written = 0; apr_status_t rv; apr_size_t n = len; int i = 0; *nbytes = 0; /* XXX handle checking for non-blocking socket */ while (bytes_written != len) { rv = apr_sendv(s, vec + i, nvec - i, &n); bytes_written += n; if (rv != APR_SUCCESS) return rv; *nbytes += n; /* If the write did not complete, adjust the iovecs and issue * apr_sendv again */ if (bytes_written < len) { /* Skip over the vectors that have already been written */ apr_size_t cnt = vec[i].iov_len; while (n >= cnt && i + 1 < nvec) { i++; cnt += vec[i].iov_len; } if (n < cnt) { /* Handle partial write of vec i */ vec[i].iov_base = (char *) vec[i].iov_base + (vec[i].iov_len - (cnt - n)); vec[i].iov_len = cnt -n; } } n = len - bytes_written; } return APR_SUCCESS; } /* sendfile_it_all() * send the entire file using sendfile() * handle partial writes * return only when all bytes have been sent or an error is encountered. */ #if APR_HAS_SENDFILE static apr_status_t sendfile_it_all(core_net_rec *c, apr_file_t *fd, apr_hdtr_t *hdtr, apr_off_t file_offset, apr_size_t file_bytes_left, apr_size_t total_bytes_left, apr_int32_t flags) { apr_status_t rv; #ifdef AP_DEBUG apr_interval_time_t timeout = 0; #endif AP_DEBUG_ASSERT((apr_socket_timeout_get(c->client_socket, &timeout) == APR_SUCCESS) && timeout > 0); /* socket must be in timeout mode */ 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 /* * emulate_sendfile() * Sends the contents of file fd along with header/trailer bytes, if any, * to the network. emulate_sendfile will return only when all the bytes have been * sent (i.e., it handles partial writes) or on a network error condition. */ static apr_status_t emulate_sendfile(core_net_rec *c, apr_file_t *fd, apr_hdtr_t *hdtr, apr_off_t offset, apr_size_t length, apr_size_t *nbytes) { apr_status_t rv = APR_SUCCESS; apr_int32_t togo; /* Remaining number of bytes in the file to send */ apr_size_t sendlen = 0; apr_size_t bytes_sent; apr_int32_t i; apr_off_t o; /* Track the file offset for partial writes */ char buffer[8192]; *nbytes = 0; /* Send the headers * writev_it_all handles partial writes. * XXX: optimization... if headers are less than MIN_WRITE_SIZE, copy * them into buffer */ if (hdtr && hdtr->numheaders > 0 ) { for (i = 0; i < hdtr->numheaders; i++) { sendlen += hdtr->headers[i].iov_len; } rv = writev_it_all(c->client_socket, hdtr->headers, hdtr->numheaders, sendlen, &bytes_sent); if (rv == APR_SUCCESS) *nbytes += bytes_sent; /* track total bytes sent */ } /* Seek the file to 'offset' */ if (offset != 0 && rv == APR_SUCCESS) { rv = apr_file_seek(fd, APR_SET, &offset); } /* Send the file, making sure to handle partial writes */ togo = length; while (rv == APR_SUCCESS && togo) { sendlen = togo > sizeof(buffer) ? sizeof(buffer) : togo; o = 0; rv = apr_file_read(fd, buffer, &sendlen); while (rv == APR_SUCCESS && sendlen) { bytes_sent = sendlen; rv = apr_send(c->client_socket, &buffer[o], &bytes_sent); if (rv == APR_SUCCESS) { sendlen -= bytes_sent; /* sendlen != bytes_sent ==> partial write */ o += bytes_sent; /* o is where we are in the buffer */ *nbytes += bytes_sent; togo -= bytes_sent; /* track how much of the file we've sent */ } } } /* Send the trailers * XXX: optimization... if it will fit, send this on the last send in the * loop above */ sendlen = 0; if ( rv == APR_SUCCESS && hdtr && hdtr->numtrailers > 0 ) { for (i = 0; i < hdtr->numtrailers; i++) { sendlen += hdtr->trailers[i].iov_len; } rv = writev_it_all(c->client_socket, hdtr->trailers, hdtr->numtrailers, sendlen, &bytes_sent); if (rv == APR_SUCCESS) *nbytes += bytes_sent; } return rv; } /* 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("server->module_config; core_server_config *conf = ap_get_module_config(sconf, &core_module); /* XXX this seems too specific, this should probably become * some general-case test */ if (r->proxyreq) { return HTTP_FORBIDDEN; } if (!r->uri || ((r->uri[0] != '/') && strcmp(r->uri, "*"))) { ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, "Invalid URI in request %s", r->the_request); return HTTP_BAD_REQUEST; } if (r->server->path && !strncmp(r->uri, r->server->path, r->server->pathlen) && (r->server->path[r->server->pathlen - 1] == '/' || r->uri[r->server->pathlen] == '/' || r->uri[r->server->pathlen] == '\0')) { /* skip all leading /'s (e.g. http://localhost///foo) * so we are looking at only the relative path. */ char *path = r->uri + r->server->pathlen; while (*path == '/') { ++path; } if (apr_filepath_merge(&r->filename, conf->ap_document_root, path, APR_FILEPATH_TRUENAME | APR_FILEPATH_SECUREROOT, r->pool) != APR_SUCCESS) { return HTTP_FORBIDDEN; } r->canonical_filename = r->filename; } else { /* * Make sure that we do not mess up the translation by adding two * /'s in a row. This happens under windows when the document * root ends with a / */ /* skip all leading /'s (e.g. http://localhost///foo) * so we are looking at only the relative path. */ char *path = r->uri; while (*path == '/') { ++path; } if (apr_filepath_merge(&r->filename, conf->ap_document_root, path, APR_FILEPATH_TRUENAME | APR_FILEPATH_SECUREROOT, r->pool) != APR_SUCCESS) { return HTTP_FORBIDDEN; } r->canonical_filename = r->filename; } return OK; } /***************************************************************** * * Test the filesystem name through directory_walk and file_walk */ static int core_map_to_storage(request_rec *r) { int access_status; if ((access_status = ap_directory_walk(r))) { return access_status; } if ((access_status = ap_file_walk(r))) { return access_status; } return OK; } static int do_nothing(request_rec *r) { return OK; } static int core_override_type(request_rec *r) { core_dir_config *conf = (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module); /* Check for overrides with ForceType / SetHandler */ if (conf->mime_type && strcmp(conf->mime_type, "none")) ap_set_content_type(r, (char*) conf->mime_type); if (conf->handler && strcmp(conf->handler, "none")) r->handler = conf->handler; /* Deal with the poor soul who is trying to force path_info to be * accepted within the core_handler, where they will let the subreq * address its contents. This is toggled by the user in the very * beginning of the fixup phase, so modules should override the user's * discretion in their own module fixup phase. It is tristate, if * the user doesn't specify, the result is 2 (which the module may * interpret to its own customary behavior.) It won't be touched * if the value is no longer undefined (2), so any module changing * the value prior to the fixup phase OVERRIDES the user's choice. */ if ((r->used_path_info == AP_REQ_DEFAULT_PATH_INFO) && (conf->accept_path_info != 3)) { r->used_path_info = conf->accept_path_info; } return OK; } static int default_handler(request_rec *r) { conn_rec *c = r->connection; apr_bucket_brigade *bb; apr_bucket *e; core_dir_config *d; int errstatus; apr_file_t *fd = NULL; apr_status_t status; /* XXX if/when somebody writes a content-md5 filter we either need to * remove this support or coordinate when to use the filter vs. * when to use this code * The current choice of when to compute the md5 here matches the 1.3 * support fairly closely (unlike 1.3, we don't handle computing md5 * when the charset is translated). */ int bld_content_md5; d = (core_dir_config *)ap_get_module_config(r->per_dir_config, &core_module); bld_content_md5 = (d->content_md5 & 1) && r->output_filters->frec->ftype != AP_FTYPE_RESOURCE; ap_allow_standard_methods(r, MERGE_ALLOW, M_GET, M_OPTIONS, M_POST, -1); /* If filters intend to consume the request body, they must * register an InputFilter to slurp the contents of the POST * data from the POST input stream. It no longer exists when * the output filters are invoked by the default handler. */ if ((errstatus = ap_discard_request_body(r)) != OK) { return errstatus; } if (r->method_number == M_GET || r->method_number == M_POST) { if (r->finfo.filetype == 0) { ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, "File does not exist: %s", r->filename); return HTTP_NOT_FOUND; } /* Don't try to serve a dir. Some OSs do weird things with * raw I/O on a dir. */ if (r->finfo.filetype == APR_DIR) { ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, "Attempt to serve directory: %s", r->filename); return HTTP_NOT_FOUND; } if ((r->used_path_info != AP_REQ_ACCEPT_PATH_INFO) && r->path_info && *r->path_info) { /* default to reject */ ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, "File does not exist: %s", apr_pstrcat(r->pool, r->filename, r->path_info, NULL)); return HTTP_NOT_FOUND; } 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, c->bucket_alloc); #if APR_HAS_LARGE_FILES if (r->finfo.size > AP_MAX_SENDFILE) { /* APR_HAS_LARGE_FILES issue; must split into mutiple buckets, * no greater than MAX(apr_size_t), and more granular than that * in case the brigade code/filters attempt to read it directly. */ apr_off_t fsize = r->finfo.size; e = apr_bucket_file_create(fd, 0, AP_MAX_SENDFILE, r->pool, c->bucket_alloc); while (fsize > AP_MAX_SENDFILE) { apr_bucket *ce; apr_bucket_copy(e, &ce); APR_BRIGADE_INSERT_TAIL(bb, ce); e->start += AP_MAX_SENDFILE; fsize -= AP_MAX_SENDFILE; } e->length = (apr_size_t)fsize; /* Resize just the last bucket */ } else #endif e = apr_bucket_file_create(fd, 0, (apr_size_t)r->finfo.size, r->pool, c->bucket_alloc); #if APR_HAS_MMAP if (d->enable_mmap == ENABLE_MMAP_OFF) { (void)apr_bucket_file_enable_mmap(e, 0); } #endif APR_BRIGADE_INSERT_TAIL(bb, e); e = apr_bucket_eos_create(c->bucket_alloc); APR_BRIGADE_INSERT_TAIL(bb, e); return ap_pass_brigade(r->output_filters, bb); } else { /* unusual method (not GET or POST) */ if (r->method_number == M_INVALID) { ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r, "Invalid method in request %s", r->the_request); return HTTP_NOT_IMPLEMENTED; } if (r->method_number == M_OPTIONS) { return ap_send_http_options(r); } return HTTP_METHOD_NOT_ALLOWED; } } static int net_time_filter(ap_filter_t *f, apr_bucket_brigade *b, ap_input_mode_t mode, apr_read_type_e block, apr_off_t readbytes) { int keptalive = f->c->keepalive == AP_CONN_KEEPALIVE; apr_socket_t *csd = ap_get_module_config(f->c->conn_config, &core_module); int *first_line = f->ctx; if (!f->ctx) { f->ctx = first_line = apr_palloc(f->r->pool, sizeof(*first_line)); *first_line = 1; } if (mode != AP_MODE_INIT && mode != AP_MODE_EATCRLF) { if (*first_line) { apr_socket_timeout_set(csd, keptalive ? f->c->base_server->keep_alive_timeout : f->c->base_server->timeout); *first_line = 0; } else { if (keptalive) { apr_socket_timeout_set(csd, f->c->base_server->timeout); } } } return ap_get_brigade(f->next, b, mode, block, readbytes); } /** * Remove all zero length buckets from the brigade. */ #define BRIGADE_NORMALIZE(b) \ do { \ apr_bucket *e = APR_BRIGADE_FIRST(b); \ do { \ if (e->length == 0 && !APR_BUCKET_IS_METADATA(e)) { \ apr_bucket *d; \ d = APR_BUCKET_NEXT(e); \ apr_bucket_delete(e); \ e = d; \ } \ e = APR_BUCKET_NEXT(e); \ } while (!APR_BRIGADE_EMPTY(b) && (e != APR_BRIGADE_SENTINEL(b))); \ } while (0) static int core_input_filter(ap_filter_t *f, apr_bucket_brigade *b, ap_input_mode_t mode, apr_read_type_e block, apr_off_t readbytes) { apr_bucket *e; apr_status_t rv; core_net_rec *net = f->ctx; core_ctx_t *ctx = net->in_ctx; const char *str; apr_size_t len; if (mode == AP_MODE_INIT) { /* * this mode is for filters that might need to 'initialize' * a connection before reading request data from a client. * NNTP over SSL for example needs to handshake before the * server sends the welcome message. * such filters would have changed the mode before this point * is reached. however, protocol modules such as NNTP should * not need to know anything about SSL. given the example, if * SSL is not in the filter chain, AP_MODE_INIT is a noop. */ return APR_SUCCESS; } if (!ctx) { ctx = apr_pcalloc(f->c->pool, sizeof(*ctx)); ctx->b = apr_brigade_create(f->c->pool, f->c->bucket_alloc); /* seed the brigade with the client socket. */ e = apr_bucket_socket_create(net->client_socket, f->c->bucket_alloc); APR_BRIGADE_INSERT_TAIL(ctx->b, e); net->in_ctx = ctx; } else if (APR_BRIGADE_EMPTY(ctx->b)) { return APR_EOF; } /* ### This is bad. */ BRIGADE_NORMALIZE(ctx->b); /* check for empty brigade again *AFTER* BRIGADE_NORMALIZE() * If we have lost our socket bucket (see above), we are EOF. * * Ideally, this should be returning SUCCESS with EOS bucket, but * some higher-up APIs (spec. read_request_line via ap_rgetline) * want an error code. */ if (APR_BRIGADE_EMPTY(ctx->b)) { return APR_EOF; } /* ### AP_MODE_PEEK is a horrific name for this mode because we also * eat any CRLFs that we see. That's not the obvious intention of * this mode. Determine whether anyone actually uses this or not. */ if (mode == AP_MODE_EATCRLF) { apr_bucket *e; const char *c; /* The purpose of this loop is to ignore any CRLF (or LF) at the end * of a request. Many browsers send extra lines at the end of POST * requests. We use the PEEK method to determine if there is more * data on the socket, so that we know if we should delay sending the * end of one request until we have served the second request in a * pipelined situation. We don't want to actually delay sending a * response if the server finds a CRLF (or LF), becuause that doesn't * mean that there is another request, just a blank line. */ while (1) { if (APR_BRIGADE_EMPTY(ctx->b)) return APR_EOF; e = APR_BRIGADE_FIRST(ctx->b); rv = apr_bucket_read(e, &str, &len, APR_NONBLOCK_READ); if (rv != APR_SUCCESS) return rv; c = str; while (c < str + len) { if (*c == APR_ASCII_LF) c++; else if (*c == APR_ASCII_CR && *(c + 1) == APR_ASCII_LF) c += 2; else return APR_SUCCESS; } /* If we reach here, we were a bucket just full of CRLFs, so * just toss the bucket. */ /* FIXME: Is this the right thing to do in the core? */ apr_bucket_delete(e); } } /* If mode is EXHAUSTIVE, we want to just read everything until the end * of the brigade, which in this case means the end of the socket. * To do this, we attach the brigade that has currently been setaside to * the brigade that was passed down, and send that brigade back. * * NOTE: This is VERY dangerous to use, and should only be done with * extreme caution. However, the Perchild MPM needs this feature * if it is ever going to work correctly again. With this, the Perchild * MPM can easily request the socket and all data that has been read, * which means that it can pass it to the correct child process. */ if (mode == AP_MODE_EXHAUSTIVE) { apr_bucket *e; /* Tack on any buckets that were set aside. */ APR_BRIGADE_CONCAT(b, ctx->b); /* Since we've just added all potential buckets (which will most * likely simply be the socket bucket) we know this is the end, * so tack on an EOS too. */ /* We have read until the brigade was empty, so we know that we * must be EOS. */ e = apr_bucket_eos_create(f->c->bucket_alloc); APR_BRIGADE_INSERT_TAIL(b, e); return APR_SUCCESS; } /* read up to the amount they specified. */ if (mode == AP_MODE_READBYTES || mode == AP_MODE_SPECULATIVE) { apr_bucket *e; apr_bucket_brigade *newbb; AP_DEBUG_ASSERT(readbytes > 0); e = APR_BRIGADE_FIRST(ctx->b); rv = apr_bucket_read(e, &str, &len, block); if (APR_STATUS_IS_EAGAIN(rv)) { return APR_SUCCESS; } else if (rv != APR_SUCCESS) { return rv; } else if (block == APR_BLOCK_READ && len == 0) { /* We wanted to read some bytes in blocking mode. We read * 0 bytes. Hence, we now assume we are EOS. * * When we are in normal mode, return an EOS bucket to the * caller. * When we are in speculative mode, leave ctx->b empty, so * that the next call returns an EOS bucket. */ apr_bucket_delete(e); if (mode == AP_MODE_READBYTES) { e = apr_bucket_eos_create(f->c->bucket_alloc); APR_BRIGADE_INSERT_TAIL(b, e); } return APR_SUCCESS; } /* We can only return at most what we read. */ if (len < readbytes) { readbytes = len; } rv = apr_brigade_partition(ctx->b, readbytes, &e); if (rv != APR_SUCCESS) { return rv; } /* Must do split before CONCAT */ newbb = apr_brigade_split(ctx->b, e); if (mode == AP_MODE_READBYTES) { APR_BRIGADE_CONCAT(b, ctx->b); } else if (mode == AP_MODE_SPECULATIVE) { apr_bucket *copy_bucket; APR_BRIGADE_FOREACH(e, ctx->b) { rv = apr_bucket_copy(e, ©_bucket); if (rv != APR_SUCCESS) { return rv; } APR_BRIGADE_INSERT_TAIL(b, copy_bucket); } } /* Take what was originally there and place it back on ctx->b */ APR_BRIGADE_CONCAT(ctx->b, newbb); return APR_SUCCESS; } /* we are reading a single LF line, e.g. the HTTP headers */ rv = apr_brigade_split_line(b, ctx->b, block, HUGE_STRING_LEN); /* We should treat EAGAIN here the same as we do for EOF (brigade is * empty). We do this by returning whatever we have read. This may * or may not be bogus, but is consistent (for now) with EOF logic. */ if (APR_STATUS_IS_EAGAIN(rv)) { rv = APR_SUCCESS; } return rv; } /* Default filter. This filter should almost always be used. Its only job * is to send the headers if they haven't already been sent, and then send * the actual data. */ #define MAX_IOVEC_TO_WRITE 16 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_net_rec *net = f->ctx; core_output_filter_ctx_t *ctx = net->out_ctx; if (ctx == NULL) { ctx = apr_pcalloc(c->pool, sizeof(*ctx)); net->out_ctx = ctx; } /* If we have a saved brigade, concatenate the new brigade to it */ if (ctx->b) { APR_BRIGADE_CONCAT(ctx->b, b); b = ctx->b; ctx->b = NULL; } /* Perform multiple passes over the brigade, sending batches of output to the connection. */ while (b && !APR_BRIGADE_EMPTY(b)) { apr_size_t nbytes = 0; apr_bucket *last_e = NULL; /* initialized for debugging */ apr_bucket *e; /* 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; /* keep track of buckets that we've concatenated * to avoid small writes */ apr_bucket *last_merged_bucket = NULL; /* Iterate over the brigade: collect iovecs and/or a file */ APR_BRIGADE_FOREACH(e, b) { /* keep track of the last bucket processed */ last_e = e; if (APR_BUCKET_IS_EOS(e)) { break; } if (APR_BUCKET_IS_FLUSH(e)) { more = apr_brigade_split(b, APR_BUCKET_NEXT(e)); break; } /* It doesn't make any sense to use sendfile for a file bucket * that represents 10 bytes. */ else if (APR_BUCKET_IS_FILE(e) && (e->length >= AP_MIN_SENDFILE_BYTES)) { apr_bucket_file *a = e->data; /* We can't handle more than one file bucket at a time * so we split here and send the file we have already * found. */ if (fd) { more = apr_brigade_split(b, e); break; } fd = a->fd; flen = e->length; foffset = e->start; } else { const char *str; apr_size_t n; rv = apr_bucket_read(e, &str, &n, APR_BLOCK_READ); if (n) { if (!fd) { if (nvec == MAX_IOVEC_TO_WRITE) { /* woah! too many. buffer them up, for use later. */ apr_bucket *temp, *next; apr_bucket_brigade *temp_brig; if (nbytes >= AP_MIN_BYTES_TO_WRITE) { /* We have enough data in the iovec * to justify doing a writev */ more = apr_brigade_split(b, e); break; } /* Create a temporary brigade as a means * of concatenating a bunch of buckets together */ if (last_merged_bucket) { /* If we've concatenated together small * buckets already in a previous pass, * the initial buckets in this brigade * are heap buckets that may have extra * space left in them (because they * were created by apr_brigade_write()). * We can take advantage of this by * building the new temp brigade out of * these buckets, so that the content * in them doesn't have to be copied again. */ apr_bucket_brigade *bb; bb = apr_brigade_split(b, APR_BUCKET_NEXT(last_merged_bucket)); temp_brig = b; b = bb; } else { temp_brig = apr_brigade_create(f->c->pool, f->c->bucket_alloc); } temp = APR_BRIGADE_FIRST(b); while (temp != e) { apr_bucket *d; rv = apr_bucket_read(temp, &str, &n, APR_BLOCK_READ); apr_brigade_write(temp_brig, NULL, NULL, str, n); d = temp; temp = APR_BUCKET_NEXT(temp); apr_bucket_delete(d); } nvec = 0; nbytes = 0; temp = APR_BRIGADE_FIRST(temp_brig); APR_BUCKET_REMOVE(temp); APR_BRIGADE_INSERT_HEAD(b, temp); apr_bucket_read(temp, &str, &n, APR_BLOCK_READ); vec[nvec].iov_base = (char*) str; vec[nvec].iov_len = n; nvec++; /* Just in case the temporary brigade has * multiple buckets, recover the rest of * them and put them in the brigade that * we're sending. */ for (next = APR_BRIGADE_FIRST(temp_brig); next != APR_BRIGADE_SENTINEL(temp_brig); next = APR_BRIGADE_FIRST(temp_brig)) { APR_BUCKET_REMOVE(next); APR_BUCKET_INSERT_AFTER(temp, next); temp = next; apr_bucket_read(next, &str, &n, APR_BLOCK_READ); vec[nvec].iov_base = (char*) str; vec[nvec].iov_len = n; nvec++; } apr_brigade_destroy(temp_brig); last_merged_bucket = temp; e = temp; last_e = e; } else { vec[nvec].iov_base = (char*) str; vec[nvec].iov_len = n; nvec++; } } else { /* The bucket is a trailer to a file bucket */ if (nvec_trailers == MAX_IOVEC_TO_WRITE) { /* woah! too many. stop now. */ more = apr_brigade_split(b, e); break; } vec_trailers[nvec_trailers].iov_base = (char*) str; vec_trailers[nvec_trailers].iov_len = n; nvec_trailers++; } nbytes += n; } } } /* Completed iterating over the 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(last_e)) || (nbytes + flen < AP_MIN_BYTES_TO_WRITE && APR_BUCKET_IS_EOS(last_e) && c->keepalive == AP_CONN_KEEPALIVE)) { /* NEVER save an EOS in here. If we are saving a brigade with * an EOS bucket, then we are doing keepalive connections, and * we want to process to second request fully. */ if (APR_BUCKET_IS_EOS(last_e)) { apr_bucket *bucket; int file_bucket_saved = 0; APR_BUCKET_REMOVE(last_e); for (bucket = APR_BRIGADE_FIRST(b); bucket != APR_BRIGADE_SENTINEL(b); bucket = APR_BUCKET_NEXT(bucket)) { /* Do a read on each bucket to pull in the * data from pipe and socket buckets, so * that we don't leave their file descriptors * open indefinitely. Do the same for file * buckets, with one exception: allow the * first file bucket in the brigade to remain * a file bucket, so that we don't end up * doing an mmap+memcpy every time a client * requests a <8KB file over a keepalive * connection. */ if (APR_BUCKET_IS_FILE(bucket) && !file_bucket_saved) { file_bucket_saved = 1; } else { const char *buf; apr_size_t len = 0; rv = apr_bucket_read(bucket, &buf, &len, APR_BLOCK_READ); if (rv != APR_SUCCESS) { ap_log_error(APLOG_MARK, APLOG_ERR, rv, c->base_server, "core_output_filter:" " Error reading from bucket."); return HTTP_INTERNAL_SERVER_ERROR; } } } } ap_save_brigade(f, &ctx->b, &b, c->pool); 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 == AP_CONN_CLOSE && APR_BUCKET_IS_EOS(last_e)) { /* Prepare the socket to be reused */ flags |= APR_SENDFILE_DISCONNECT_SOCKET; } rv = sendfile_it_all(net, /* the network information */ fd, /* the file to send */ &hdtr, /* header and trailer iovecs */ foffset, /* offset in the file to begin sending from */ flen, /* length of file */ nbytes + flen, /* total length including headers */ flags); /* apr_sendfile flags */ /* If apr_sendfile() returns APR_ENOTIMPL, call emulate_sendfile(). * emulate_sendfile() is useful to enable the same Apache binary * distribution to support Windows NT/2000 (supports TransmitFile) * and Win95/98 (do not support TransmitFile) */ if (rv == APR_ENOTIMPL) #endif { apr_size_t unused_bytes_sent; rv = emulate_sendfile(net, fd, &hdtr, foffset, flen, &unused_bytes_sent); } fd = NULL; } else { apr_size_t unused_bytes_sent; rv = writev_it_all(net->client_socket, vec, nvec, nbytes, &unused_bytes_sent); } apr_brigade_destroy(b); if (rv != APR_SUCCESS) { ap_log_error(APLOG_MARK, APLOG_INFO, 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) || APR_STATUS_IS_EPIPE(rv)) { c->aborted = 1; } /* The client has aborted, but the request was successful. We * will report success, and leave it to the access and error * logs to note that the connection was aborted. */ return APR_SUCCESS; } b = more; more = NULL; } /* end while () */ return APR_SUCCESS; } static int core_post_config(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s) { ap_set_version(pconf); ap_setup_make_content_type(pconf); return OK; } static int core_open_logs(apr_pool_t *pconf, apr_pool_t *plog, apr_pool_t *ptemp, server_rec *s) { ap_open_logs(s, plog); return OK; } static void core_insert_filter(request_rec *r) { core_dir_config *conf = (core_dir_config *) ap_get_module_config(r->per_dir_config, &core_module); const char *filter, *filters = conf->output_filters; if (filters) { while (*filters && (filter = ap_getword(r->pool, &filters, ';'))) { ap_add_output_filter(filter, NULL, r, r->connection); } } filters = conf->input_filters; if (filters) { while (*filters && (filter = ap_getword(r->pool, &filters, ';'))) { ap_add_input_filter(filter, NULL, r, r->connection); } } } static apr_size_t num_request_notes = AP_NUM_STD_NOTES; static apr_status_t reset_request_notes(void *dummy) { num_request_notes = AP_NUM_STD_NOTES; return APR_SUCCESS; } AP_DECLARE(apr_size_t) ap_register_request_note(void) { apr_pool_cleanup_register(apr_hook_global_pool, NULL, reset_request_notes, apr_pool_cleanup_null); return num_request_notes++; } AP_DECLARE(void **) ap_get_request_note(request_rec *r, apr_size_t note_num) { core_request_config *req_cfg; if (note_num >= num_request_notes) { return NULL; } req_cfg = (core_request_config *) ap_get_module_config(r->request_config, &core_module); if (!req_cfg) { return NULL; } return &(req_cfg->notes[note_num]); } static int core_create_req(request_rec *r) { /* Alloc the config struct and the array of request notes in * a single block for efficiency */ core_request_config *req_cfg; req_cfg = apr_pcalloc(r->pool, sizeof(core_request_config) + sizeof(void *) * num_request_notes); req_cfg->notes = (void **)((char *)req_cfg + sizeof(core_request_config)); if (r->main) { core_request_config *main_req_cfg = (core_request_config *) ap_get_module_config(r->main->request_config, &core_module); req_cfg->bb = main_req_cfg->bb; } else { req_cfg->bb = apr_brigade_create(r->pool, r->connection->bucket_alloc); if (!r->prev) { ap_add_input_filter_handle(ap_net_time_filter_handle, NULL, r, r->connection); } } ap_set_module_config(r->request_config, &core_module, req_cfg); /* Begin by presuming any module can make its own path_info assumptions, * until some module interjects and changes the value. */ r->used_path_info = AP_REQ_DEFAULT_PATH_INFO; return OK; } static int core_create_proxy_req(request_rec *r, request_rec *pr) { return core_create_req(pr); } static conn_rec *core_create_conn(apr_pool_t *ptrans, server_rec *server, apr_socket_t *csd, long id, void *sbh, apr_bucket_alloc_t *alloc) { apr_status_t rv; conn_rec *c = (conn_rec *) apr_pcalloc(ptrans, sizeof(conn_rec)); c->sbh = sbh; (void)ap_update_child_status(c->sbh, SERVER_BUSY_READ, (request_rec *)NULL); /* Got a connection structure, so initialize what fields we can * (the rest are zeroed out by pcalloc). */ c->conn_config = ap_create_conn_config(ptrans); c->notes = apr_table_make(ptrans, 5); c->pool = ptrans; if ((rv = apr_socket_addr_get(&c->local_addr, APR_LOCAL, csd)) != APR_SUCCESS) { ap_log_error(APLOG_MARK, APLOG_INFO, rv, server, "apr_socket_addr_get(APR_LOCAL)"); apr_socket_close(csd); return NULL; } apr_sockaddr_ip_get(&c->local_ip, c->local_addr); if ((rv = apr_socket_addr_get(&c->remote_addr, APR_REMOTE, csd)) != APR_SUCCESS) { ap_log_error(APLOG_MARK, APLOG_INFO, rv, server, "apr_socket_addr_get(APR_REMOTE)"); apr_socket_close(csd); return NULL; } apr_sockaddr_ip_get(&c->remote_ip, c->remote_addr); c->base_server = server; c->id = id; c->bucket_alloc = alloc; return c; } static int core_pre_connection(conn_rec *c, void *csd) { core_net_rec *net = apr_palloc(c->pool, sizeof(*net)); #ifdef AP_MPM_DISABLE_NAGLE_ACCEPTED_SOCK /* BillS says perhaps this should be moved to the MPMs. Some OSes * allow listening socket attributes to be inherited by the * accept sockets which means this call only needs to be made * once on the listener */ ap_sock_disable_nagle(csd); #endif net->c = c; net->in_ctx = NULL; net->out_ctx = NULL; net->client_socket = csd; ap_set_module_config(net->c->conn_config, &core_module, csd); ap_add_input_filter_handle(ap_core_input_filter_handle, net, NULL, net->c); ap_add_output_filter_handle(ap_core_output_filter_handle, net, NULL, net->c); return DONE; } static void register_hooks(apr_pool_t *p) { /* create_connection and install_transport_filters are * hooks that should always be APR_HOOK_REALLY_LAST to give other * modules the opportunity to install alternate network transports * and stop other functions from being run. */ ap_hook_create_connection(core_create_conn, NULL, NULL, APR_HOOK_REALLY_LAST); ap_hook_pre_connection(core_pre_connection, NULL, NULL, APR_HOOK_REALLY_LAST); ap_hook_post_config(core_post_config,NULL,NULL,APR_HOOK_REALLY_FIRST); ap_hook_translate_name(ap_core_translate,NULL,NULL,APR_HOOK_REALLY_LAST); ap_hook_map_to_storage(core_map_to_storage,NULL,NULL,APR_HOOK_REALLY_LAST); ap_hook_open_logs(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 do_nothings - Ben */ ap_hook_type_checker(do_nothing,NULL,NULL,APR_HOOK_REALLY_LAST); ap_hook_fixups(core_override_type,NULL,NULL,APR_HOOK_REALLY_FIRST); ap_hook_access_checker(do_nothing,NULL,NULL,APR_HOOK_REALLY_LAST); ap_hook_create_request(core_create_req, NULL, NULL, APR_HOOK_MIDDLE); APR_OPTIONAL_HOOK(proxy, create_req, core_create_proxy_req, NULL, NULL, APR_HOOK_MIDDLE); ap_hook_pre_mpm(ap_create_scoreboard, NULL, NULL, APR_HOOK_MIDDLE); /* register the core's insert_filter hook and register core-provided * filters */ ap_hook_insert_filter(core_insert_filter, NULL, NULL, APR_HOOK_MIDDLE); ap_core_input_filter_handle = ap_register_input_filter("CORE_IN", core_input_filter, NULL, AP_FTYPE_NETWORK); ap_net_time_filter_handle = ap_register_input_filter("NET_TIME", net_time_filter, NULL, AP_FTYPE_PROTOCOL); ap_content_length_filter_handle = ap_register_output_filter("CONTENT_LENGTH", ap_content_length_filter, NULL, AP_FTYPE_PROTOCOL); ap_core_output_filter_handle = ap_register_output_filter("CORE", core_output_filter, NULL, AP_FTYPE_NETWORK); ap_subreq_core_filter_handle = ap_register_output_filter("SUBREQ_CORE", ap_sub_req_output_filter, NULL, AP_FTYPE_CONTENT_SET); ap_old_write_func = ap_register_output_filter("OLD_WRITE", ap_old_write_filter, NULL, AP_FTYPE_RESOURCE - 10); } AP_DECLARE_DATA module core_module = { STANDARD20_MODULE_STUFF, create_core_dir_config, /* create per-directory config structure */ merge_core_dir_configs, /* merge per-directory config structures */ create_core_server_config, /* create per-server config structure */ merge_core_server_configs, /* merge per-server config structures */ core_cmds, /* command apr_table_t */ register_hooks /* register hooks */ };