| /* Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* |
| * http_config.c: once was auxillary functions for reading httpd's config |
| * file and converting filenames into a namespace |
| * |
| * Rob McCool |
| * |
| * Wall-to-wall rewrite for Apache... commands which are part of the |
| * server core can now be found next door in "http_core.c". Now contains |
| * general command loop, and functions which do bookkeeping for the new |
| * Apache config stuff (modules and configuration vectors). |
| * |
| * rst |
| * |
| */ |
| |
| #define CORE_PRIVATE |
| |
| #include "httpd.h" |
| #include "http_config.h" |
| #include "http_core.h" |
| #include "http_log.h" /* for errors in parse_htaccess */ |
| #include "http_request.h" /* for default_handler (see invoke_handler) */ |
| #include "http_conf_globals.h" /* Sigh... */ |
| #include "http_vhost.h" |
| #include "explain.h" |
| #include "fnmatch.h" |
| |
| DEF_Explain |
| |
| /**************************************************************** |
| * |
| * We begin with the functions which deal with the linked list |
| * of modules which control just about all of the server operation. |
| */ |
| |
| /* total_modules is the number of modules that have been linked |
| * into the server. |
| */ |
| static int total_modules = 0; |
| /* dynamic_modules is the number of modules that have been added |
| * after the pre-loaded ones have been set up. It shouldn't be larger |
| * than DYNAMIC_MODULE_LIMIT. |
| */ |
| static int dynamic_modules = 0; |
| API_VAR_EXPORT module *top_module = NULL; |
| API_VAR_EXPORT module **ap_loaded_modules=NULL; |
| |
| typedef int (*handler_func) (request_rec *); |
| typedef void *(*dir_maker_func) (pool *, char *); |
| typedef void *(*merger_func) (pool *, void *, void *); |
| |
| /* Dealing with config vectors. These are associated with per-directory, |
| * per-server, and per-request configuration, and have a void* pointer for |
| * each modules. The nature of the structure pointed to is private to the |
| * module in question... the core doesn't (and can't) know. However, there |
| * are defined interfaces which allow it to create instances of its private |
| * per-directory and per-server structures, and to merge the per-directory |
| * structures of a directory and its subdirectory (producing a new one in |
| * which the defaults applying to the base directory have been properly |
| * overridden). |
| */ |
| |
| #ifndef ap_get_module_config |
| API_EXPORT(void *) ap_get_module_config(void *conf_vector, module *m) |
| { |
| void **confv = (void **) conf_vector; |
| return confv[m->module_index]; |
| } |
| #endif |
| |
| #ifndef ap_set_module_config |
| API_EXPORT(void) ap_set_module_config(void *conf_vector, module *m, void *val) |
| { |
| void **confv = (void **) conf_vector; |
| confv[m->module_index] = val; |
| } |
| #endif |
| |
| static void *create_empty_config(pool *p) |
| { |
| void **conf_vector = (void **) ap_pcalloc(p, sizeof(void *) * |
| (total_modules + DYNAMIC_MODULE_LIMIT)); |
| return (void *) conf_vector; |
| } |
| |
| static void *create_default_per_dir_config(pool *p) |
| { |
| void **conf_vector = (void **) ap_pcalloc(p, sizeof(void *) * (total_modules + DYNAMIC_MODULE_LIMIT)); |
| module *modp; |
| |
| for (modp = top_module; modp; modp = modp->next) { |
| dir_maker_func df = modp->create_dir_config; |
| |
| if (df) |
| conf_vector[modp->module_index] = (*df) (p, NULL); |
| } |
| |
| return (void *) conf_vector; |
| } |
| |
| CORE_EXPORT(void *) |
| ap_merge_per_dir_configs(pool *p, void *base, void *new) |
| { |
| void **conf_vector = (void **) ap_palloc(p, sizeof(void *) * total_modules); |
| void **base_vector = (void **) base; |
| void **new_vector = (void **) new; |
| module *modp; |
| |
| for (modp = top_module; modp; modp = modp->next) { |
| merger_func df = modp->merge_dir_config; |
| int i = modp->module_index; |
| |
| if (df && new_vector[i]) |
| conf_vector[i] = (*df) (p, base_vector[i], new_vector[i]); |
| else |
| conf_vector[i] = new_vector[i] ? new_vector[i] : base_vector[i]; |
| } |
| |
| return (void *) conf_vector; |
| } |
| |
| static void *create_server_config(pool *p, server_rec *s) |
| { |
| void **conf_vector = (void **) ap_pcalloc(p, sizeof(void *) * (total_modules + DYNAMIC_MODULE_LIMIT)); |
| module *modp; |
| |
| for (modp = top_module; modp; modp = modp->next) { |
| if (modp->create_server_config) |
| conf_vector[modp->module_index] = (*modp->create_server_config) (p, s); |
| } |
| |
| return (void *) conf_vector; |
| } |
| |
| static void merge_server_configs(pool *p, void *base, void *virt) |
| { |
| /* Can reuse the 'virt' vector for the spine of it, since we don't |
| * have to deal with the moral equivalent of .htaccess files here... |
| */ |
| |
| void **base_vector = (void **) base; |
| void **virt_vector = (void **) virt; |
| module *modp; |
| |
| for (modp = top_module; modp; modp = modp->next) { |
| merger_func df = modp->merge_server_config; |
| int i = modp->module_index; |
| |
| if (!virt_vector[i]) |
| virt_vector[i] = base_vector[i]; |
| else if (df) |
| virt_vector[i] = (*df) (p, base_vector[i], virt_vector[i]); |
| } |
| } |
| |
| CORE_EXPORT(void *) ap_create_request_config(pool *p) |
| { |
| return create_empty_config(p); |
| } |
| |
| CORE_EXPORT(void *) ap_create_per_dir_config(pool *p) |
| { |
| return create_empty_config(p); |
| } |
| |
| #ifdef EXPLAIN |
| |
| struct { |
| int offset; |
| char *method; |
| } aMethods[] = |
| |
| { |
| #define m(meth) { XtOffsetOf(module,meth),#meth } |
| m(translate_handler), |
| m(ap_check_user_id), |
| m(auth_checker), |
| m(type_checker), |
| m(fixer_upper), |
| m(logger), |
| { -1, "?" }, |
| #undef m |
| }; |
| |
| char *ShowMethod(module *modp, int offset) |
| { |
| int n; |
| static char buf[200]; |
| |
| for (n = 0; aMethods[n].offset >= 0; ++n) |
| if (aMethods[n].offset == offset) |
| break; |
| ap_snprintf(buf, sizeof(buf), "%s:%s", modp->name, aMethods[n].method); |
| return buf; |
| } |
| #else |
| #define ShowMethod(modp,offset) |
| #endif |
| |
| /**************************************************************** |
| * |
| * Dispatch through the modules to find handlers for various phases |
| * of request handling. These are invoked by http_request.c to actually |
| * do the dirty work of slogging through the module structures. |
| */ |
| |
| /* |
| * Optimized run_method routines. The observation here is that many modules |
| * have NULL for most of the methods. So we build optimized lists of |
| * everything. If you think about it, this is really just like a sparse array |
| * implementation to avoid scanning the zero entries. |
| */ |
| static const int method_offsets[] = |
| { |
| XtOffsetOf(module, translate_handler), |
| XtOffsetOf(module, ap_check_user_id), |
| XtOffsetOf(module, auth_checker), |
| XtOffsetOf(module, access_checker), |
| XtOffsetOf(module, type_checker), |
| XtOffsetOf(module, fixer_upper), |
| XtOffsetOf(module, logger), |
| XtOffsetOf(module, header_parser), |
| XtOffsetOf(module, post_read_request) |
| }; |
| #define NMETHODS (sizeof (method_offsets)/sizeof (method_offsets[0])) |
| |
| static struct { |
| int translate_handler; |
| int ap_check_user_id; |
| int auth_checker; |
| int access_checker; |
| int type_checker; |
| int fixer_upper; |
| int logger; |
| int header_parser; |
| int post_read_request; |
| } offsets_into_method_ptrs; |
| |
| /* |
| * This is just one big array of method_ptrs. It's constructed such that, |
| * for example, method_ptrs[ offsets_into_method_ptrs.logger ] is the first |
| * logger function. You go one-by-one from there until you hit a NULL. |
| * This structure was designed to hopefully maximize cache-coolness. |
| */ |
| static handler_func *method_ptrs; |
| |
| |
| void ap_cleanup_method_ptrs() |
| { |
| if (method_ptrs) { |
| free(method_ptrs); |
| } |
| } |
| |
| /* routine to reconstruct all these shortcuts... called after every |
| * add_module. |
| * XXX: this breaks if modules dink with their methods pointers |
| */ |
| static void build_method_shortcuts(void) |
| { |
| module *modp; |
| int how_many_ptrs; |
| int i; |
| int next_ptr; |
| handler_func fp; |
| |
| if (method_ptrs) { |
| /* free up any previous set of method_ptrs */ |
| free(method_ptrs); |
| } |
| |
| /* first we count how many functions we have */ |
| how_many_ptrs = 0; |
| for (modp = top_module; modp; modp = modp->next) { |
| for (i = 0; i < NMETHODS; ++i) { |
| if (*(handler_func *) (method_offsets[i] + (char *) modp)) { |
| ++how_many_ptrs; |
| } |
| } |
| } |
| method_ptrs = malloc((how_many_ptrs + NMETHODS) * sizeof(handler_func)); |
| if (method_ptrs == NULL) { |
| fprintf(stderr, "Ouch! Out of memory in build_method_shortcuts()!\n"); |
| } |
| next_ptr = 0; |
| for (i = 0; i < NMETHODS; ++i) { |
| /* XXX: This is an itsy bit presumptuous about the alignment |
| * constraints on offsets_into_method_ptrs. I can't remember if |
| * ANSI says this has to be true... -djg */ |
| ((int *) &offsets_into_method_ptrs)[i] = next_ptr; |
| for (modp = top_module; modp; modp = modp->next) { |
| fp = *(handler_func *) (method_offsets[i] + (char *) modp); |
| if (fp) { |
| method_ptrs[next_ptr++] = fp; |
| } |
| } |
| method_ptrs[next_ptr++] = NULL; |
| } |
| } |
| |
| |
| static int run_method(request_rec *r, int offset, int run_all) |
| { |
| int i; |
| |
| for (i = offset; method_ptrs[i]; ++i) { |
| handler_func mod_handler = method_ptrs[i]; |
| |
| if (mod_handler) { |
| int result; |
| |
| result = (*mod_handler) (r); |
| |
| if (result != DECLINED && (!run_all || result != OK)) |
| return result; |
| } |
| } |
| |
| return run_all ? OK : DECLINED; |
| } |
| |
| API_EXPORT(int) ap_translate_name(request_rec *r) |
| { |
| return run_method(r, offsets_into_method_ptrs.translate_handler, 0); |
| } |
| |
| API_EXPORT(int) ap_check_access(request_rec *r) |
| { |
| return run_method(r, offsets_into_method_ptrs.access_checker, 1); |
| } |
| |
| API_EXPORT(int) ap_find_types(request_rec *r) |
| { |
| return run_method(r, offsets_into_method_ptrs.type_checker, 0); |
| } |
| |
| API_EXPORT(int) ap_run_fixups(request_rec *r) |
| { |
| return run_method(r, offsets_into_method_ptrs.fixer_upper, 1); |
| } |
| |
| API_EXPORT(int) ap_log_transaction(request_rec *r) |
| { |
| return run_method(r, offsets_into_method_ptrs.logger, 1); |
| } |
| |
| API_EXPORT(int) ap_header_parse(request_rec *r) |
| { |
| return run_method(r, offsets_into_method_ptrs.header_parser, 1); |
| } |
| |
| API_EXPORT(int) ap_run_post_read_request(request_rec *r) |
| { |
| return run_method(r, offsets_into_method_ptrs.post_read_request, 1); |
| } |
| |
| /* Auth stuff --- anything that defines one of these will presumably |
| * want to define something for the other. Note that check_auth is |
| * separate from check_access to make catching some config errors easier. |
| */ |
| |
| API_EXPORT(int) ap_check_user_id(request_rec *r) |
| { |
| return run_method(r, offsets_into_method_ptrs.ap_check_user_id, 0); |
| } |
| |
| API_EXPORT(int) ap_check_auth(request_rec *r) |
| { |
| return run_method(r, offsets_into_method_ptrs.auth_checker, 0); |
| } |
| |
| /* |
| * For speed/efficiency we generate a compact list of all the handlers |
| * and wildcard handlers. This means we won't have to scan the entire |
| * module list looking for handlers... where we'll find a whole whack |
| * of NULLs. |
| */ |
| typedef struct { |
| handler_rec hr; |
| size_t len; |
| } fast_handler_rec; |
| |
| static fast_handler_rec *handlers; |
| static fast_handler_rec *wildhandlers; |
| |
| static void init_handlers(pool *p) |
| { |
| module *modp; |
| int nhandlers = 0; |
| int nwildhandlers = 0; |
| const handler_rec *handp; |
| fast_handler_rec *ph, *pw; |
| char *starp; |
| |
| for (modp = top_module; modp; modp = modp->next) { |
| if (!modp->handlers) |
| continue; |
| for (handp = modp->handlers; handp->content_type; ++handp) { |
| if (strchr(handp->content_type, '*')) { |
| nwildhandlers ++; |
| } else { |
| nhandlers ++; |
| } |
| } |
| } |
| ph = handlers = ap_palloc(p, sizeof(*ph)*(nhandlers + 1)); |
| pw = wildhandlers = ap_palloc(p, sizeof(*pw)*(nwildhandlers + 1)); |
| for (modp = top_module; modp; modp = modp->next) { |
| if (!modp->handlers) |
| continue; |
| for (handp = modp->handlers; handp->content_type; ++handp) { |
| if ((starp = strchr(handp->content_type, '*'))) { |
| pw->hr.content_type = handp->content_type; |
| pw->hr.handler = handp->handler; |
| pw->len = starp - handp->content_type; |
| pw ++; |
| } else { |
| ph->hr.content_type = handp->content_type; |
| ph->hr.handler = handp->handler; |
| ph->len = strlen(handp->content_type); |
| ph ++; |
| } |
| } |
| } |
| pw->hr.content_type = NULL; |
| pw->hr.handler = NULL; |
| ph->hr.content_type = NULL; |
| ph->hr.handler = NULL; |
| } |
| |
| API_EXPORT(int) ap_invoke_handler(request_rec *r) |
| { |
| fast_handler_rec *handp; |
| const char *handler; |
| char *p; |
| size_t handler_len; |
| int result = HTTP_INTERNAL_SERVER_ERROR; |
| |
| if (r->handler) { |
| handler = r->handler; |
| handler_len = strlen(handler); |
| } |
| else { |
| handler = r->content_type ? r->content_type : ap_default_type(r); |
| if ((p = strchr(handler, ';')) != NULL) { /* MIME type arguments */ |
| while (p > handler && p[-1] == ' ') |
| --p; /* strip trailing spaces */ |
| handler_len = p - handler; |
| } |
| else { |
| handler_len = strlen(handler); |
| } |
| } |
| |
| /* Pass one --- direct matches */ |
| |
| for (handp = handlers; handp->hr.content_type; ++handp) { |
| if (handler_len == handp->len |
| && !strncmp(handler, handp->hr.content_type, handler_len)) { |
| result = (*handp->hr.handler) (r); |
| |
| if (result != DECLINED) |
| return result; |
| } |
| } |
| |
| /* Pass two --- wildcard matches */ |
| |
| for (handp = wildhandlers; handp->hr.content_type; ++handp) { |
| if (handler_len >= handp->len |
| && !strncmp(handler, handp->hr.content_type, handp->len)) { |
| result = (*handp->hr.handler) (r); |
| |
| if (result != DECLINED) |
| return result; |
| } |
| } |
| |
| if (result == HTTP_INTERNAL_SERVER_ERROR && r->handler && r->filename) { |
| ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_WARNING, r, |
| "handler \"%s\" not found for: %s", r->handler, r->filename); |
| } |
| return HTTP_INTERNAL_SERVER_ERROR; |
| } |
| |
| /* One-time setup for precompiled modules --- NOT to be done on restart */ |
| |
| API_EXPORT(void) ap_add_module(module *m) |
| { |
| /* This could be called from an AddModule httpd.conf command, |
| * after the file has been linked and the module structure within it |
| * teased out... |
| */ |
| |
| if (m->version != MODULE_MAGIC_NUMBER_MAJOR) { |
| fprintf(stderr, "%s: module \"%s\" is not compatible with this " |
| "version of Apache.\n", ap_server_argv0, m->name); |
| fprintf(stderr, "Please contact the vendor for the correct version.\n"); |
| #ifdef NETWARE |
| clean_parent_exit(1); |
| #else |
| exit(1); |
| #endif |
| } |
| |
| if (m->next == NULL) { |
| m->next = top_module; |
| top_module = m; |
| } |
| if (m->module_index == -1) { |
| m->module_index = total_modules++; |
| dynamic_modules++; |
| |
| if (dynamic_modules > DYNAMIC_MODULE_LIMIT) { |
| fprintf(stderr, "%s: module \"%s\" could not be loaded, because" |
| " the dynamic\n", ap_server_argv0, m->name); |
| fprintf(stderr, "module limit was reached. Please increase " |
| "DYNAMIC_MODULE_LIMIT and recompile.\n"); |
| #ifdef NETWARE |
| clean_parent_exit(1); |
| #else |
| exit(1); |
| #endif |
| } |
| } |
| |
| /* Some C compilers put a complete path into __FILE__, but we want |
| * only the filename (e.g. mod_includes.c). So check for path |
| * components (Unix and DOS), and remove them. |
| */ |
| |
| if (strrchr(m->name, '/')) |
| m->name = 1 + strrchr(m->name, '/'); |
| if (strrchr(m->name, '\\')) |
| m->name = 1 + strrchr(m->name, '\\'); |
| |
| #ifdef _OSD_POSIX /* __FILE__="*POSIX(/home/martin/apache/src/modules/standard/mod_info.c)" */ |
| /* We cannot fix the string in-place, because it's const */ |
| if (m->name[strlen(m->name)-1]==')') { |
| char *tmp = strdup(m->name); /* FIXME:memory leak, albeit a small one */ |
| tmp[strlen(tmp)-1] = '\0'; |
| m->name = tmp; |
| } |
| #endif /*_OSD_POSIX*/ |
| } |
| |
| /* |
| * remove_module undoes what add_module did. There are some caveats: |
| * when the module is removed, its slot is lost so all the current |
| * per-dir and per-server configurations are invalid. So we should |
| * only ever call this function when you are invalidating almost |
| * all our current data. I.e. when doing a restart. |
| */ |
| |
| API_EXPORT(void) ap_remove_module(module *m) |
| { |
| module *modp; |
| |
| modp = top_module; |
| if (modp == m) { |
| /* We are the top module, special case */ |
| top_module = modp->next; |
| m->next = NULL; |
| } |
| else { |
| /* Not the top module, find use. When found modp will |
| * point to the module _before_ us in the list |
| */ |
| |
| while (modp && modp->next != m) { |
| modp = modp->next; |
| } |
| if (!modp) { |
| /* Uh-oh, this module doesn't exist */ |
| ap_log_error(APLOG_MARK, APLOG_ERR|APLOG_NOERRNO, NULL, |
| "Cannot remove module %s: not found in module list", |
| m->name); |
| return; |
| } |
| /* Eliminate us from the module list */ |
| modp->next = modp->next->next; |
| } |
| |
| m->module_index = -1; /* simulate being unloaded, should |
| * be unnecessary */ |
| dynamic_modules--; |
| total_modules--; |
| } |
| |
| API_EXPORT(void) ap_add_loaded_module(module *mod) |
| { |
| module **m; |
| |
| /* |
| * Add module pointer to top of chained module list |
| */ |
| ap_add_module(mod); |
| |
| /* |
| * And module pointer to list of loaded modules |
| * |
| * Notes: 1. ap_add_module() would already complain if no more space |
| * exists for adding a dynamically loaded module |
| * 2. ap_add_module() accepts double-inclusion, so we have |
| * to accept this, too. |
| */ |
| for (m = ap_loaded_modules; *m != NULL; m++) |
| ; |
| *m++ = mod; |
| *m = NULL; |
| } |
| |
| API_EXPORT(void) ap_remove_loaded_module(module *mod) |
| { |
| module **m; |
| module **m2; |
| int done; |
| |
| /* |
| * Remove module pointer from chained module list |
| */ |
| ap_remove_module(mod); |
| |
| /* |
| * Remove module pointer from list of loaded modules |
| * |
| * Note: 1. We cannot determine if the module was successfully |
| * removed by ap_remove_module(). |
| * 2. We have not to complain explicity when the module |
| * is not found because ap_remove_module() did it |
| * for us already. |
| */ |
| for (m = m2 = ap_loaded_modules, done = 0; *m2 != NULL; m2++) { |
| if (*m2 == mod && done == 0) |
| done = 1; |
| else |
| *m++ = *m2; |
| } |
| *m = NULL; |
| } |
| |
| API_EXPORT(void) ap_setup_prelinked_modules(void) |
| { |
| module **m; |
| module **m2; |
| |
| /* |
| * Initialise total_modules variable and module indices |
| */ |
| total_modules = 0; |
| for (m = ap_preloaded_modules; *m != NULL; m++) |
| (*m)->module_index = total_modules++; |
| |
| /* |
| * Initialise list of loaded modules |
| */ |
| ap_loaded_modules = (module **)malloc( |
| sizeof(module *)*(total_modules+DYNAMIC_MODULE_LIMIT+1)); |
| if (ap_loaded_modules == NULL) { |
| fprintf(stderr, "Ouch! Out of memory in ap_setup_prelinked_modules()!\n"); |
| #ifdef NETWARE |
| clean_parent_exit(1); |
| #else |
| exit(1); |
| #endif |
| } |
| for (m = ap_preloaded_modules, m2 = ap_loaded_modules; *m != NULL; ) |
| *m2++ = *m++; |
| *m2 = NULL; |
| |
| /* |
| * Initialize chain of linked (=activate) modules |
| */ |
| for (m = ap_prelinked_modules; *m != NULL; m++) |
| ap_add_module(*m); |
| } |
| |
| API_EXPORT(const char *) ap_find_module_name(module *m) |
| { |
| return m->name; |
| } |
| |
| API_EXPORT(module *) ap_find_linked_module(const char *name) |
| { |
| module *modp; |
| |
| for (modp = top_module; modp; modp = modp->next) { |
| if (strcmp(modp->name, name) == 0) |
| return modp; |
| } |
| return NULL; |
| } |
| |
| /* Add a named module. Returns 1 if module found, 0 otherwise. */ |
| API_EXPORT(int) ap_add_named_module(const char *name) |
| { |
| module *modp; |
| int i = 0; |
| |
| for (modp = ap_loaded_modules[i]; modp; modp = ap_loaded_modules[++i]) { |
| if (strcmp(modp->name, name) == 0) { |
| /* Only add modules that are not already enabled. */ |
| if (modp->next == NULL) { |
| ap_add_module(modp); |
| } |
| return 1; |
| } |
| } |
| |
| return 0; |
| } |
| |
| /* Clear the internal list of modules, in preparation for starting over. */ |
| API_EXPORT(void) ap_clear_module_list() |
| { |
| module **m = &top_module; |
| module **next_m; |
| |
| while (*m) { |
| next_m = &((*m)->next); |
| *m = NULL; |
| m = next_m; |
| } |
| |
| /* This is required; so we add it always. */ |
| ap_add_named_module("http_core.c"); |
| } |
| |
| /***************************************************************** |
| * |
| * Resource, access, and .htaccess config files now parsed by a common |
| * command loop. |
| * |
| * Let's begin with the basics; parsing the line and |
| * invoking the function... |
| */ |
| |
| static const char *invoke_cmd(const command_rec *cmd, cmd_parms *parms, |
| void *mconfig, const char *args) |
| { |
| char *w, *w2, *w3; |
| const char *errmsg; |
| |
| if ((parms->override & cmd->req_override) == 0) |
| return ap_pstrcat(parms->pool, cmd->name, " not allowed here", NULL); |
| |
| parms->info = cmd->cmd_data; |
| parms->cmd = cmd; |
| |
| switch (cmd->args_how) { |
| case RAW_ARGS: |
| return ((const char *(*)(cmd_parms *, void *, const char *)) |
| (cmd->func)) (parms, mconfig, args); |
| |
| case NO_ARGS: |
| if (*args != 0) |
| return ap_pstrcat(parms->pool, cmd->name, " takes no arguments", |
| NULL); |
| |
| return ((const char *(*)(cmd_parms *, void *)) |
| (cmd->func)) (parms, mconfig); |
| |
| case TAKE1: |
| w = ap_getword_conf(parms->pool, &args); |
| |
| if (*w == '\0' || *args != 0) |
| return ap_pstrcat(parms->pool, cmd->name, " takes one argument", |
| cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); |
| |
| return ((const char *(*)(cmd_parms *, void *, const char *)) |
| (cmd->func)) (parms, mconfig, w); |
| |
| case TAKE2: |
| |
| w = ap_getword_conf(parms->pool, &args); |
| w2 = ap_getword_conf(parms->pool, &args); |
| |
| if (*w == '\0' || *w2 == '\0' || *args != 0) |
| return ap_pstrcat(parms->pool, cmd->name, " takes two arguments", |
| cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); |
| |
| return ((const char *(*)(cmd_parms *, void *, const char *, |
| const char *)) (cmd->func)) (parms, mconfig, w, w2); |
| |
| case TAKE12: |
| |
| w = ap_getword_conf(parms->pool, &args); |
| w2 = ap_getword_conf(parms->pool, &args); |
| |
| if (*w == '\0' || *args != 0) |
| return ap_pstrcat(parms->pool, cmd->name, " takes 1-2 arguments", |
| cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); |
| |
| return ((const char *(*)(cmd_parms *, void *, const char *, |
| const char *)) (cmd->func)) (parms, mconfig, w, |
| *w2 ? w2 : NULL); |
| |
| case TAKE3: |
| |
| w = ap_getword_conf(parms->pool, &args); |
| w2 = ap_getword_conf(parms->pool, &args); |
| w3 = ap_getword_conf(parms->pool, &args); |
| |
| if (*w == '\0' || *w2 == '\0' || *w3 == '\0' || *args != 0) |
| return ap_pstrcat(parms->pool, cmd->name, " takes three arguments", |
| cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); |
| |
| return ((const char *(*)(cmd_parms *, void *, const char *, |
| const char *, const char *)) (cmd->func)) (parms, |
| mconfig, w, w2, w3); |
| |
| case TAKE23: |
| |
| w = ap_getword_conf(parms->pool, &args); |
| w2 = ap_getword_conf(parms->pool, &args); |
| w3 = *args ? ap_getword_conf(parms->pool, &args) : NULL; |
| |
| if (*w == '\0' || *w2 == '\0' || *args != 0) |
| return ap_pstrcat(parms->pool, cmd->name, |
| " takes two or three arguments", |
| cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); |
| |
| return ((const char *(*)(cmd_parms *, void *, const char *, |
| const char *, const char *)) (cmd->func)) (parms, |
| mconfig, w, w2, w3); |
| |
| case TAKE123: |
| |
| w = ap_getword_conf(parms->pool, &args); |
| w2 = *args ? ap_getword_conf(parms->pool, &args) : NULL; |
| w3 = *args ? ap_getword_conf(parms->pool, &args) : NULL; |
| |
| if (*w == '\0' || *args != 0) |
| return ap_pstrcat(parms->pool, cmd->name, |
| " takes one, two or three arguments", |
| cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); |
| |
| return ((const char *(*)(cmd_parms *, void *, const char *, |
| const char *, const char *)) (cmd->func)) (parms, |
| mconfig, w, w2, w3); |
| |
| case TAKE13: |
| |
| w = ap_getword_conf(parms->pool, &args); |
| w2 = *args ? ap_getword_conf(parms->pool, &args) : NULL; |
| w3 = *args ? ap_getword_conf(parms->pool, &args) : NULL; |
| |
| if (*w == '\0' || (w2 && *w2 && !w3) || *args != 0) |
| return ap_pstrcat(parms->pool, cmd->name, |
| " takes one or three arguments", |
| cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); |
| |
| return ((const char *(*)(cmd_parms *, void *, const char *, |
| const char *, const char *)) (cmd->func)) (parms, |
| mconfig, w, w2, w3); |
| |
| case ITERATE: |
| |
| while (*(w = ap_getword_conf(parms->pool, &args)) != '\0') |
| if ((errmsg = ((const char *(*)(cmd_parms *, void *, |
| const char *)) (cmd->func)) (parms, mconfig, w))) |
| return errmsg; |
| |
| return NULL; |
| |
| case ITERATE2: |
| |
| w = ap_getword_conf(parms->pool, &args); |
| |
| if (*w == '\0' || *args == 0) |
| return ap_pstrcat(parms->pool, cmd->name, |
| " requires at least two arguments", |
| cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); |
| |
| |
| while (*(w2 = ap_getword_conf(parms->pool, &args)) != '\0') |
| if ((errmsg = ((const char *(*)(cmd_parms *, void *, |
| const char *, const char *)) (cmd->func)) (parms, |
| mconfig, w, w2))) |
| return errmsg; |
| |
| return NULL; |
| |
| case FLAG: |
| |
| w = ap_getword_conf(parms->pool, &args); |
| |
| if (*w == '\0' || (strcasecmp(w, "on") && strcasecmp(w, "off"))) |
| return ap_pstrcat(parms->pool, cmd->name, " must be On or Off", |
| NULL); |
| |
| return ((const char *(*)(cmd_parms *, void *, int)) |
| (cmd->func)) (parms, mconfig, strcasecmp(w, "off") != 0); |
| |
| default: |
| |
| return ap_pstrcat(parms->pool, cmd->name, |
| " is improperly configured internally (server bug)", |
| NULL); |
| } |
| } |
| |
| CORE_EXPORT(const command_rec *) ap_find_command(const char *name, const command_rec *cmds) |
| { |
| while (cmds->name) |
| if (!strcasecmp(name, cmds->name)) |
| return cmds; |
| else |
| ++cmds; |
| |
| return NULL; |
| } |
| |
| CORE_EXPORT(const command_rec *) ap_find_command_in_modules(const char *cmd_name, module **mod) |
| { |
| const command_rec *cmdp; |
| module *modp; |
| |
| for (modp = *mod; modp; modp = modp->next) |
| if (modp->cmds && (cmdp = ap_find_command(cmd_name, modp->cmds))) { |
| *mod = modp; |
| return cmdp; |
| } |
| |
| return NULL; |
| } |
| |
| CORE_EXPORT(void *) ap_set_config_vectors(cmd_parms *parms, void *config, module *mod) |
| { |
| void *mconfig = ap_get_module_config(config, mod); |
| void *sconfig = ap_get_module_config(parms->server->module_config, mod); |
| |
| if (!mconfig && mod->create_dir_config) { |
| mconfig = (*mod->create_dir_config) (parms->pool, parms->path); |
| ap_set_module_config(config, mod, mconfig); |
| } |
| |
| if (!sconfig && mod->create_server_config) { |
| sconfig = (*mod->create_server_config) (parms->pool, parms->server); |
| ap_set_module_config(parms->server->module_config, mod, sconfig); |
| } |
| return mconfig; |
| } |
| |
| CORE_EXPORT(const char *) ap_handle_command(cmd_parms *parms, void *config, const char *l) |
| { |
| void *oldconfig; |
| const char *args, *cmd_name, *retval; |
| const command_rec *cmd; |
| module *mod = top_module; |
| |
| if ((l[0] == '#') || (!l[0])) |
| return NULL; |
| |
| args = l; |
| cmd_name = ap_getword_conf(parms->temp_pool, &args); |
| if (*cmd_name == '\0') |
| return NULL; |
| |
| oldconfig = parms->context; |
| parms->context = config; |
| do { |
| if (!(cmd = ap_find_command_in_modules(cmd_name, &mod))) { |
| errno = EINVAL; |
| return ap_pstrcat(parms->pool, "Invalid command '", cmd_name, |
| "', perhaps mis-spelled or defined by a module " |
| "not included in the server configuration", NULL); |
| } |
| else { |
| void *mconfig = ap_set_config_vectors(parms,config, mod); |
| |
| retval = invoke_cmd(cmd, parms, mconfig, args); |
| mod = mod->next; /* Next time around, skip this one */ |
| } |
| } while (retval && !strcmp(retval, DECLINE_CMD)); |
| parms->context = oldconfig; |
| |
| return retval; |
| } |
| |
| API_EXPORT(const char *) ap_srm_command_loop(cmd_parms *parms, void *config) |
| { |
| char l[MAX_STRING_LEN]; |
| |
| while (!(ap_cfg_getline(l, MAX_STRING_LEN, parms->config_file))) { |
| const char *errmsg = ap_handle_command(parms, config, l); |
| if (errmsg) { |
| return errmsg; |
| } |
| } |
| |
| return NULL; |
| } |
| |
| /* |
| * Generic command functions... |
| */ |
| |
| API_EXPORT_NONSTD(const char *) ap_set_string_slot(cmd_parms *cmd, |
| char *struct_ptr, char *arg) |
| { |
| /* This one's pretty generic... */ |
| |
| int offset = (int) (long) cmd->info; |
| *(char **) (struct_ptr + offset) = arg; |
| return NULL; |
| } |
| |
| API_EXPORT_NONSTD(const char *) ap_set_string_slot_lower(cmd_parms *cmd, |
| char *struct_ptr, char *arg) |
| { |
| /* This one's pretty generic... */ |
| |
| int offset = (int) (long) cmd->info; |
| ap_str_tolower(arg); |
| *(char **) (struct_ptr + offset) = arg; |
| return NULL; |
| } |
| |
| API_EXPORT_NONSTD(const char *) ap_set_flag_slot(cmd_parms *cmd, |
| char *struct_ptr, int arg) |
| { |
| /* This one's pretty generic too... */ |
| |
| int offset = (int) (long) cmd->info; |
| *(int *) (struct_ptr + offset) = arg ? 1 : 0; |
| return NULL; |
| } |
| |
| API_EXPORT_NONSTD(const char *) ap_set_file_slot(cmd_parms *cmd, char *struct_ptr, char *arg) |
| { |
| /* Prepend server_root to relative arg. |
| This allows .htaccess to be independent of server_root, |
| so the server can be moved or mirrored with less pain. */ |
| char *p; |
| int offset = (int) (long) cmd->info; |
| #ifndef OS2 |
| arg = ap_os_canonical_filename(cmd->pool, arg); |
| #endif |
| if (ap_os_is_path_absolute(arg)) |
| p = arg; |
| else |
| p = ap_make_full_path(cmd->pool, ap_server_root, arg); |
| *(char **) (struct_ptr + offset) = p; |
| return NULL; |
| } |
| |
| /***************************************************************** |
| * |
| * Reading whole config files... |
| */ |
| |
| static cmd_parms default_parms = |
| {NULL, 0, -1, NULL, NULL, NULL, NULL, NULL, NULL, NULL}; |
| |
| API_EXPORT(char *) ap_server_root_relative(pool *p, char *file) |
| { |
| #ifndef OS2 |
| file = ap_os_canonical_filename(p, file); |
| #endif |
| if(ap_os_is_path_absolute(file)) |
| return file; |
| return ap_make_full_path(p, ap_server_root, file); |
| } |
| |
| |
| /* This structure and the following functions are needed for the |
| * table-based config file reading. They are passed to the |
| * cfg_open_custom() routine. |
| */ |
| |
| /* Structure to be passed to cfg_open_custom(): it contains an |
| * index which is incremented from 0 to nelts on each call to |
| * cfg_getline() (which in turn calls arr_elts_getstr()) |
| * and an array_header pointer for the string array. |
| */ |
| typedef struct { |
| array_header *array; |
| int curr_idx; |
| } arr_elts_param_t; |
| |
| |
| /* arr_elts_getstr() returns the next line from the string array. */ |
| static void *arr_elts_getstr(void *buf, size_t bufsiz, void *param) |
| { |
| arr_elts_param_t *arr_param = (arr_elts_param_t *) param; |
| |
| /* End of array reached? */ |
| if (++arr_param->curr_idx > arr_param->array->nelts) |
| return NULL; |
| |
| /* return the line */ |
| ap_cpystrn(buf, ((char **) arr_param->array->elts)[arr_param->curr_idx - 1], bufsiz); |
| |
| return buf; |
| } |
| |
| |
| /* arr_elts_close(): dummy close routine (makes sure no more lines can be read) */ |
| static int arr_elts_close(void *param) |
| { |
| arr_elts_param_t *arr_param = (arr_elts_param_t *) param; |
| arr_param->curr_idx = arr_param->array->nelts; |
| return 0; |
| } |
| |
| static void process_command_config(server_rec *s, array_header *arr, pool *p, |
| pool *ptemp) |
| { |
| const char *errmsg; |
| cmd_parms parms; |
| arr_elts_param_t arr_parms; |
| |
| arr_parms.curr_idx = 0; |
| arr_parms.array = arr; |
| |
| parms = default_parms; |
| parms.pool = p; |
| parms.temp_pool = ptemp; |
| parms.server = s; |
| parms.override = (RSRC_CONF | OR_ALL) & ~(OR_AUTHCFG | OR_LIMIT); |
| parms.config_file = ap_pcfg_open_custom(p, "-c/-C directives", |
| &arr_parms, NULL, |
| arr_elts_getstr, arr_elts_close); |
| |
| errmsg = ap_srm_command_loop(&parms, s->lookup_defaults); |
| |
| if (errmsg) { |
| fprintf(stderr, "Syntax error in -C/-c directive:\n%s\n", errmsg); |
| #ifdef NETWARE |
| clean_parent_exit(1); |
| #else |
| exit(1); |
| #endif |
| } |
| |
| ap_cfg_closefile(parms.config_file); |
| } |
| |
| typedef struct { |
| char *fname; |
| } fnames; |
| |
| static int fname_alphasort(const void *fn1, const void *fn2) |
| { |
| const fnames *f1 = fn1; |
| const fnames *f2 = fn2; |
| |
| return strcmp(f1->fname,f2->fname); |
| } |
| |
| CORE_EXPORT(void) ap_process_resource_config(server_rec *s, char *fname, pool *p, pool *ptemp) |
| { |
| const char *errmsg; |
| cmd_parms parms; |
| struct stat finfo; |
| int ispatt; |
| fname = ap_server_root_relative(p, fname); |
| |
| if (!(strcmp(fname, ap_server_root_relative(p, RESOURCE_CONFIG_FILE))) || |
| !(strcmp(fname, ap_server_root_relative(p, ACCESS_CONFIG_FILE)))) { |
| if (stat(fname, &finfo) == -1) |
| return; |
| } |
| |
| /* don't require conf/httpd.conf if we have a -C or -c switch */ |
| if((ap_server_pre_read_config->nelts || ap_server_post_read_config->nelts) && |
| !(strcmp(fname, ap_server_root_relative(p, SERVER_CONFIG_FILE)))) { |
| if (stat(fname, &finfo) == -1) |
| return; |
| } |
| |
| /* |
| * here we want to check if the candidate file is really a |
| * directory, and most definitely NOT a symlink (to prevent |
| * horrible loops). If so, let's recurse and toss it back into |
| * the function. |
| */ |
| ispatt = ap_is_fnmatch(fname); |
| if (ispatt || ap_is_rdirectory(fname)) { |
| DIR *dirp; |
| struct DIR_TYPE *dir_entry; |
| int current; |
| array_header *candidates = NULL; |
| fnames *fnew; |
| char *path = ap_pstrdup(p,fname); |
| char *pattern = NULL; |
| |
| if(ispatt && (pattern = strrchr(path, '/')) != NULL) { |
| *pattern++ = '\0'; |
| if (ap_is_fnmatch(path)) { |
| fprintf(stderr, "%s: wildcard patterns not allowed in Include " |
| "%s\n", ap_server_argv0, fname); |
| exit(1); |
| } |
| |
| if (!ap_is_rdirectory(path)){ |
| fprintf(stderr, "%s: Include directory '%s' not found", |
| ap_server_argv0, path); |
| exit(1); |
| } |
| if (!ap_is_fnmatch(pattern)) { |
| fprintf(stderr, "%s: must include a wildcard pattern " |
| "for Include %s\n", ap_server_argv0, fname); |
| exit(1); |
| } |
| } |
| |
| |
| /* |
| * first course of business is to grok all the directory |
| * entries here and store 'em away. Recall we need full pathnames |
| * for this. |
| */ |
| fprintf(stderr, "Processing config directory: %s\n", fname); |
| #ifdef NETWARE |
| dirp = ap_popendir(p, fname); |
| #else |
| dirp = ap_popendir(p, path); |
| #endif |
| if (dirp == NULL) { |
| perror("fopen"); |
| fprintf(stderr, "%s: could not open config directory %s\n", |
| ap_server_argv0, path); |
| #ifdef NETWARE |
| clean_parent_exit(1); |
| #else |
| exit(1); |
| #endif |
| } |
| candidates = ap_make_array(p, 1, sizeof(fnames)); |
| while ((dir_entry = readdir(dirp)) != NULL) { |
| /* strip out '.' and '..' */ |
| if (strcmp(dir_entry->d_name, ".") && |
| strcmp(dir_entry->d_name, "..") && |
| (!ispatt || |
| !ap_fnmatch(pattern,dir_entry->d_name, FNM_PERIOD)) ) { |
| fnew = (fnames *) ap_push_array(candidates); |
| fnew->fname = ap_make_full_path(p, path, dir_entry->d_name); |
| } |
| } |
| ap_pclosedir(p, dirp); |
| if (candidates->nelts != 0) { |
| qsort((void *) candidates->elts, candidates->nelts, |
| sizeof(fnames), fname_alphasort); |
| /* |
| * Now recurse these... we handle errors and subdirectories |
| * via the recursion, which is nice |
| */ |
| for (current = 0; current < candidates->nelts; ++current) { |
| fnew = &((fnames *) candidates->elts)[current]; |
| fprintf(stderr, " Processing config file: %s\n", fnew->fname); |
| ap_process_resource_config(s, fnew->fname, p, ptemp); |
| } |
| } |
| return; |
| } |
| |
| /* GCC's initialization extensions are soooo nice here... */ |
| |
| parms = default_parms; |
| parms.pool = p; |
| parms.temp_pool = ptemp; |
| parms.server = s; |
| parms.override = (RSRC_CONF | OR_ALL) & ~(OR_AUTHCFG | OR_LIMIT); |
| |
| if (!(parms.config_file = ap_pcfg_openfile(p,fname))) { |
| perror("fopen"); |
| fprintf(stderr, "%s: could not open document config file %s\n", |
| ap_server_argv0, fname); |
| #ifdef NETWARE |
| clean_parent_exit(1); |
| #else |
| exit(1); |
| #endif |
| } |
| |
| errmsg = ap_srm_command_loop(&parms, s->lookup_defaults); |
| |
| if (errmsg) { |
| fprintf(stderr, "Syntax error on line %d of %s:\n", |
| parms.config_file->line_number, parms.config_file->name); |
| fprintf(stderr, "%s\n", errmsg); |
| #ifdef NETWARE |
| clean_parent_exit(1); |
| #else |
| exit(1); |
| #endif |
| } |
| |
| ap_cfg_closefile(parms.config_file); |
| } |
| |
| CORE_EXPORT(int) ap_parse_htaccess(void **result, request_rec *r, int override, |
| const char *d, const char *access_name) |
| { |
| configfile_t *f = NULL; |
| cmd_parms parms; |
| const char *errmsg; |
| char *filename = NULL; |
| const struct htaccess_result *cache; |
| struct htaccess_result *new; |
| void *dc = NULL; |
| |
| /* firstly, search cache */ |
| for (cache = r->htaccess; cache != NULL; cache = cache->next) |
| if (cache->override == override && strcmp(cache->dir, d) == 0) { |
| if (cache->htaccess != NULL) |
| *result = cache->htaccess; |
| return OK; |
| } |
| |
| parms = default_parms; |
| parms.override = override; |
| parms.pool = r->pool; |
| parms.temp_pool = r->pool; |
| parms.server = r->server; |
| parms.path = ap_pstrdup(r->pool, d); |
| |
| /* loop through the access names and find the first one */ |
| |
| while (access_name[0]) { |
| filename = ap_make_full_path(r->pool, d, |
| ap_getword_conf(r->pool, &access_name)); |
| |
| if ((f = ap_pcfg_openfile(r->pool, filename)) != NULL) { |
| |
| dc = ap_create_per_dir_config(r->pool); |
| |
| parms.config_file = f; |
| |
| errmsg = ap_srm_command_loop(&parms, dc); |
| |
| ap_cfg_closefile(f); |
| |
| if (errmsg) { |
| ap_log_rerror(APLOG_MARK, APLOG_ALERT|APLOG_NOERRNO, r, |
| "%s: %s", filename, errmsg); |
| return HTTP_INTERNAL_SERVER_ERROR; |
| } |
| *result = dc; |
| break; |
| } |
| else if (errno != ENOENT && errno != ENOTDIR) { |
| ap_log_rerror(APLOG_MARK, APLOG_CRIT, r, |
| "%s pcfg_openfile: unable to check htaccess file, " |
| "ensure it is readable", |
| filename); |
| ap_table_setn(r->notes, "error-notes", |
| "Server unable to read htaccess file, denying " |
| "access to be safe"); |
| return HTTP_FORBIDDEN; |
| } |
| } |
| |
| /* cache it */ |
| new = ap_palloc(r->pool, sizeof(struct htaccess_result)); |
| new->dir = parms.path; |
| new->override = override; |
| new->htaccess = dc; |
| /* add to head of list */ |
| new->next = r->htaccess; |
| r->htaccess = new; |
| |
| return OK; |
| } |
| |
| |
| CORE_EXPORT(const char *) ap_init_virtual_host(pool *p, const char *hostname, |
| server_rec *main_server, server_rec **ps) |
| { |
| server_rec *s = (server_rec *) ap_pcalloc(p, sizeof(server_rec)); |
| |
| #ifdef RLIMIT_NOFILE |
| struct rlimit limits; |
| |
| getrlimit(RLIMIT_NOFILE, &limits); |
| if (limits.rlim_cur < limits.rlim_max) { |
| limits.rlim_cur += 2; |
| if (setrlimit(RLIMIT_NOFILE, &limits) < 0) { |
| perror("setrlimit(RLIMIT_NOFILE)"); |
| fprintf(stderr, "Cannot exceed hard limit for open files"); |
| } |
| } |
| #endif |
| |
| s->server_admin = NULL; |
| s->server_hostname = NULL; |
| s->error_fname = NULL; |
| s->srm_confname = NULL; |
| s->access_confname = NULL; |
| s->timeout = 0; |
| s->keep_alive_timeout = 0; |
| s->keep_alive = -1; |
| s->keep_alive_max = -1; |
| s->error_log = main_server->error_log; |
| s->loglevel = main_server->loglevel; |
| /* useful default, otherwise we get a port of 0 on redirects */ |
| s->port = main_server->port; |
| s->next = NULL; |
| |
| s->is_virtual = 1; |
| s->names = ap_make_array(p, 4, sizeof(char **)); |
| s->wild_names = ap_make_array(p, 4, sizeof(char **)); |
| |
| s->module_config = create_empty_config(p); |
| s->lookup_defaults = ap_create_per_dir_config(p); |
| |
| s->server_uid = ap_user_id; |
| s->server_gid = ap_group_id; |
| |
| s->limit_req_line = main_server->limit_req_line; |
| s->limit_req_fieldsize = main_server->limit_req_fieldsize; |
| s->limit_req_fields = main_server->limit_req_fields; |
| |
| *ps = s; |
| |
| return ap_parse_vhost_addrs(p, hostname, s); |
| } |
| |
| |
| static void fixup_virtual_hosts(pool *p, server_rec *main_server) |
| { |
| server_rec *virt; |
| |
| for (virt = main_server->next; virt; virt = virt->next) { |
| merge_server_configs(p, main_server->module_config, |
| virt->module_config); |
| |
| virt->lookup_defaults = |
| ap_merge_per_dir_configs(p, main_server->lookup_defaults, |
| virt->lookup_defaults); |
| |
| if (virt->server_admin == NULL) |
| virt->server_admin = main_server->server_admin; |
| |
| if (virt->srm_confname == NULL) |
| virt->srm_confname = main_server->srm_confname; |
| |
| if (virt->access_confname == NULL) |
| virt->access_confname = main_server->access_confname; |
| |
| if (virt->timeout == 0) |
| virt->timeout = main_server->timeout; |
| |
| if (virt->keep_alive_timeout == 0) |
| virt->keep_alive_timeout = main_server->keep_alive_timeout; |
| |
| if (virt->keep_alive == -1) |
| virt->keep_alive = main_server->keep_alive; |
| |
| if (virt->keep_alive_max == -1) |
| virt->keep_alive_max = main_server->keep_alive_max; |
| |
| if (virt->send_buffer_size == 0) |
| virt->send_buffer_size = main_server->send_buffer_size; |
| |
| /* XXX: this is really something that should be dealt with by a |
| * post-config api phase */ |
| ap_core_reorder_directories(p, virt); |
| } |
| ap_core_reorder_directories(p, main_server); |
| } |
| |
| /***************************************************************** |
| * |
| * Getting *everything* configured... |
| */ |
| |
| static void init_config_globals(pool *p) |
| { |
| /* ServerRoot, server_confname set in httpd.c */ |
| |
| ap_standalone = 1; |
| ap_user_name = DEFAULT_USER; |
| ap_user_id = ap_uname2id(DEFAULT_USER); |
| ap_group_id = ap_gname2id(DEFAULT_GROUP); |
| ap_daemons_to_start = DEFAULT_START_DAEMON; |
| ap_daemons_min_free = DEFAULT_MIN_FREE_DAEMON; |
| ap_daemons_max_free = DEFAULT_MAX_FREE_DAEMON; |
| ap_daemons_limit = HARD_SERVER_LIMIT; |
| ap_pid_fname = DEFAULT_PIDLOG; |
| ap_scoreboard_fname = DEFAULT_SCOREBOARD; |
| ap_lock_fname = DEFAULT_LOCKFILE; |
| ap_max_requests_per_child = DEFAULT_MAX_REQUESTS_PER_CHILD; |
| ap_bind_address.s_addr = htonl(INADDR_ANY); |
| ap_listeners = NULL; |
| ap_listenbacklog = DEFAULT_LISTENBACKLOG; |
| ap_extended_status = 0; |
| |
| /* Global virtual host hash bucket pointers. Init to null. */ |
| ap_init_vhost_config(p); |
| |
| ap_cpystrn(ap_coredump_dir, ap_server_root, sizeof(ap_coredump_dir)); |
| } |
| |
| static server_rec *init_server_config(pool *p) |
| { |
| server_rec *s = (server_rec *) ap_pcalloc(p, sizeof(server_rec)); |
| |
| s->port = 0; |
| s->server_admin = DEFAULT_ADMIN; |
| s->server_hostname = NULL; |
| s->error_fname = DEFAULT_ERRORLOG; |
| s->error_log = stderr; |
| s->loglevel = DEFAULT_LOGLEVEL; |
| s->srm_confname = RESOURCE_CONFIG_FILE; |
| s->access_confname = ACCESS_CONFIG_FILE; |
| s->limit_req_line = DEFAULT_LIMIT_REQUEST_LINE; |
| s->limit_req_fieldsize = DEFAULT_LIMIT_REQUEST_FIELDSIZE; |
| s->limit_req_fields = DEFAULT_LIMIT_REQUEST_FIELDS; |
| s->timeout = DEFAULT_TIMEOUT; |
| s->keep_alive_timeout = DEFAULT_KEEPALIVE_TIMEOUT; |
| s->keep_alive_max = DEFAULT_KEEPALIVE; |
| s->keep_alive = 1; |
| s->next = NULL; |
| s->addrs = ap_pcalloc(p, sizeof(server_addr_rec)); |
| /* NOT virtual host; don't match any real network interface */ |
| s->addrs->host_addr.s_addr = htonl(INADDR_ANY); |
| s->addrs->host_port = 0; /* matches any port */ |
| s->addrs->virthost = ""; /* must be non-NULL */ |
| s->names = s->wild_names = NULL; |
| |
| s->module_config = create_server_config(p, s); |
| s->lookup_defaults = create_default_per_dir_config(p); |
| |
| return s; |
| } |
| |
| |
| static void default_listeners(pool *p, server_rec *s) |
| { |
| listen_rec *new; |
| |
| if (ap_listeners != NULL) { |
| return; |
| } |
| /* allocate a default listener */ |
| new = ap_pcalloc(p, sizeof(listen_rec)); |
| new->local_addr.sin_family = AF_INET; |
| new->local_addr.sin_addr = ap_bind_address; |
| /* Buck ugly cast to get around terniary op bug in some (MS) compilers */ |
| new->local_addr.sin_port = htons((unsigned short)(s->port ? s->port |
| : DEFAULT_HTTP_PORT)); |
| new->fd = -1; |
| new->used = 0; |
| new->next = NULL; |
| ap_listeners = new; |
| } |
| |
| |
| API_EXPORT(server_rec *) ap_read_config(pool *p, pool *ptemp, char *confname) |
| { |
| server_rec *s = init_server_config(p); |
| |
| init_config_globals(p); |
| |
| /* All server-wide config files now have the SAME syntax... */ |
| |
| process_command_config(s, ap_server_pre_read_config, p, ptemp); |
| |
| ap_process_resource_config(s, confname, p, ptemp); |
| ap_process_resource_config(s, s->srm_confname, p, ptemp); |
| ap_process_resource_config(s, s->access_confname, p, ptemp); |
| |
| process_command_config(s, ap_server_post_read_config, p, ptemp); |
| |
| fixup_virtual_hosts(p, s); |
| default_listeners(p, s); |
| ap_fini_vhost_config(p, s); |
| |
| return s; |
| } |
| |
| API_EXPORT(void) ap_single_module_configure(pool *p, server_rec *s, module *m) |
| { |
| if (m->create_server_config) |
| ap_set_module_config(s->module_config, m, |
| (*m->create_server_config)(p, s)); |
| if (m->create_dir_config) |
| ap_set_module_config(s->lookup_defaults, m, |
| (*m->create_dir_config)(p, NULL)); |
| } |
| |
| API_EXPORT(void) ap_init_modules(pool *p, server_rec *s) |
| { |
| module *m; |
| |
| for (m = top_module; m; m = m->next) |
| if (m->init) |
| (*m->init) (s, p); |
| build_method_shortcuts(); |
| init_handlers(p); |
| } |
| |
| API_EXPORT(void) ap_child_init_modules(pool *p, server_rec *s) |
| { |
| module *m; |
| |
| for (m = top_module; m; m = m->next) |
| if (m->child_init) |
| (*m->child_init) (s, p); |
| } |
| |
| API_EXPORT(void) ap_child_exit_modules(pool *p, server_rec *s) |
| { |
| module *m; |
| |
| #ifdef SIGHUP |
| signal(SIGHUP, SIG_IGN); |
| #endif |
| #ifdef SIGUSR1 |
| signal(SIGUSR1, SIG_IGN); |
| #endif |
| |
| for (m = top_module; m; m = m->next) |
| if (m->child_exit) |
| (*m->child_exit) (s, p); |
| |
| } |
| |
| /******************************************************************** |
| * Configuration directives are restricted in terms of where they may |
| * appear in the main configuration files and/or .htaccess files according |
| * to the bitmask req_override in the command_rec structure. |
| * If any of the overrides set in req_override are also allowed in the |
| * context in which the command is read, then the command is allowed. |
| * The context is determined as follows: |
| * |
| * inside *.conf --> override = (RSRC_CONF|OR_ALL)&~(OR_AUTHCFG|OR_LIMIT); |
| * within <Directory> or <Location> --> override = OR_ALL|ACCESS_CONF; |
| * within .htaccess --> override = AllowOverride for current directory; |
| * |
| * the result is, well, a rather confusing set of possibilities for when |
| * a particular directive is allowed to be used. This procedure prints |
| * in English where the given (pc) directive can be used. |
| */ |
| static void show_overrides(const command_rec *pc, module *pm) |
| { |
| int n = 0; |
| |
| printf("\tAllowed in *.conf "); |
| if ((pc->req_override & (OR_OPTIONS | OR_FILEINFO | OR_INDEXES)) || |
| ((pc->req_override & RSRC_CONF) && |
| ((pc->req_override & (ACCESS_CONF | OR_AUTHCFG | OR_LIMIT))))) |
| printf("anywhere"); |
| else if (pc->req_override & RSRC_CONF) |
| printf("only outside <Directory>, <Files> or <Location>"); |
| else |
| printf("only inside <Directory>, <Files> or <Location>"); |
| |
| /* Warn if the directive is allowed inside <Directory> or .htaccess |
| * but module doesn't support per-dir configuration */ |
| |
| if ((pc->req_override & (OR_ALL | ACCESS_CONF)) && !pm->create_dir_config) |
| printf(" [no per-dir config]"); |
| |
| if (pc->req_override & OR_ALL) { |
| printf(" and in .htaccess\n\twhen AllowOverride"); |
| |
| if ((pc->req_override & OR_ALL) == OR_ALL) |
| printf(" isn't None"); |
| else { |
| printf(" includes "); |
| |
| if (pc->req_override & OR_AUTHCFG) { |
| if (n++) |
| printf(" or "); |
| printf("AuthConfig"); |
| } |
| if (pc->req_override & OR_LIMIT) { |
| if (n++) |
| printf(" or "); |
| printf("Limit"); |
| } |
| if (pc->req_override & OR_OPTIONS) { |
| if (n++) |
| printf(" or "); |
| printf("Options"); |
| } |
| if (pc->req_override & OR_FILEINFO) { |
| if (n++) |
| printf(" or "); |
| printf("FileInfo"); |
| } |
| if (pc->req_override & OR_INDEXES) { |
| if (n++) |
| printf(" or "); |
| printf("Indexes"); |
| } |
| } |
| } |
| printf("\n"); |
| } |
| |
| /* Show the preloaded configuration directives, the help string explaining |
| * the directive arguments, in what module they are handled, and in |
| * what parts of the configuration they are allowed. Used for httpd -L. |
| */ |
| API_EXPORT(void) ap_show_directives(void) |
| { |
| const command_rec *pc; |
| int n; |
| |
| for (n = 0; ap_loaded_modules[n]; ++n) |
| for (pc = ap_loaded_modules[n]->cmds; pc && pc->name; ++pc) { |
| printf("%s (%s)\n", pc->name, ap_loaded_modules[n]->name); |
| if (pc->errmsg) |
| printf("\t%s\n", pc->errmsg); |
| show_overrides(pc, ap_loaded_modules[n]); |
| } |
| } |
| |
| /* Show the preloaded module names. Used for httpd -l. */ |
| API_EXPORT(void) ap_show_modules(void) |
| { |
| int n; |
| |
| printf("Compiled-in modules:\n"); |
| for (n = 0; ap_loaded_modules[n]; ++n) { |
| printf(" %s\n", ap_loaded_modules[n]->name); |
| } |
| #if !defined(WIN32) && !defined(NETWARE) && !defined(TPF) |
| printf("suexec: %s\n", |
| ap_suexec_enabled |
| ? "enabled; valid wrapper " SUEXEC_BIN |
| : "disabled; invalid wrapper " SUEXEC_BIN); |
| #endif |
| } |