diff options
Diffstat (limited to 'rubbos/app/httpd-2.0.64/server/config.c')
| -rw-r--r-- | rubbos/app/httpd-2.0.64/server/config.c | 2045 |
1 files changed, 2045 insertions, 0 deletions
diff --git a/rubbos/app/httpd-2.0.64/server/config.c b/rubbos/app/httpd-2.0.64/server/config.c new file mode 100644 index 00000000..b3817be7 --- /dev/null +++ b/rubbos/app/httpd-2.0.64/server/config.c @@ -0,0 +1,2045 @@ +/* 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 + * + */ + +#include "apr.h" +#include "apr_strings.h" +#include "apr_portable.h" +#include "apr_file_io.h" +#include "apr_fnmatch.h" + +#define APR_WANT_STDIO +#define APR_WANT_STRFUNC +#include "apr_want.h" + +#define CORE_PRIVATE + +#include "ap_config.h" +#include "httpd.h" +#include "http_config.h" +#include "http_protocol.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_main.h" +#include "http_vhost.h" +#include "util_cfgtree.h" +#include "mpm.h" + + +AP_DECLARE_DATA const char *ap_server_argv0 = NULL; + +AP_DECLARE_DATA const char *ap_server_root = NULL; + +AP_DECLARE_DATA apr_array_header_t *ap_server_pre_read_config = NULL; +AP_DECLARE_DATA apr_array_header_t *ap_server_post_read_config = NULL; +AP_DECLARE_DATA apr_array_header_t *ap_server_config_defines = NULL; + +AP_DECLARE_DATA ap_directive_t *ap_conftree = NULL; + +APR_HOOK_STRUCT( + APR_HOOK_LINK(header_parser) + APR_HOOK_LINK(pre_config) + APR_HOOK_LINK(post_config) + APR_HOOK_LINK(open_logs) + APR_HOOK_LINK(child_init) + APR_HOOK_LINK(handler) + APR_HOOK_LINK(quick_handler) + APR_HOOK_LINK(optional_fn_retrieve) +) + +AP_IMPLEMENT_HOOK_RUN_ALL(int, header_parser, + (request_rec *r), (r), OK, DECLINED) + +AP_IMPLEMENT_HOOK_RUN_ALL(int, pre_config, + (apr_pool_t *pconf, apr_pool_t *plog, + apr_pool_t *ptemp), + (pconf, plog, ptemp), OK, DECLINED) + +AP_IMPLEMENT_HOOK_RUN_ALL(int, post_config, + (apr_pool_t *pconf, apr_pool_t *plog, + apr_pool_t *ptemp, server_rec *s), + (pconf, plog, ptemp, s), OK, DECLINED) + +/* During the course of debugging I expanded this macro out, so + * rather than remove all the useful information there is in the + * following lines, I'm going to leave it here in case anyone + * else finds it useful. + * + * Ben has looked at it and thinks it correct :) + * +AP_DECLARE(int) ap_hook_post_config(ap_HOOK_post_config_t *pf, + const char * const *aszPre, + const char * const *aszSucc, + int nOrder) +{ + ap_LINK_post_config_t *pHook; + + if (!_hooks.link_post_config) { + _hooks.link_post_config = apr_array_make(apr_hook_global_pool, 1, + sizeof(ap_LINK_post_config_t)); + apr_hook_sort_register("post_config", &_hooks.link_post_config); + } + + pHook = apr_array_push(_hooks.link_post_config); + pHook->pFunc = pf; + pHook->aszPredecessors = aszPre; + pHook->aszSuccessors = aszSucc; + pHook->nOrder = nOrder; + pHook->szName = apr_hook_debug_current; + + if (apr_hook_debug_enabled) + apr_hook_debug_show("post_config", aszPre, aszSucc); +} + +AP_DECLARE(apr_array_header_t *) ap_hook_get_post_config(void) { + return _hooks.link_post_config; +} + +AP_DECLARE(int) ap_run_post_config(apr_pool_t *pconf, + apr_pool_t *plog, + apr_pool_t *ptemp, + server_rec *s) +{ + ap_LINK_post_config_t *pHook; + int n; + + if(!_hooks.link_post_config) + return; + + pHook = (ap_LINK_post_config_t *)_hooks.link_post_config->elts; + for (n = 0; n < _hooks.link_post_config->nelts; ++n) + pHook[n].pFunc (pconf, plog, ptemp, s); +} + */ + +AP_IMPLEMENT_HOOK_RUN_ALL(int, open_logs, + (apr_pool_t *pconf, apr_pool_t *plog, + apr_pool_t *ptemp, server_rec *s), + (pconf, plog, ptemp, s), OK, DECLINED) + +AP_IMPLEMENT_HOOK_VOID(child_init, + (apr_pool_t *pchild, server_rec *s), + (pchild, s)) + +AP_IMPLEMENT_HOOK_RUN_FIRST(int, handler, (request_rec *r), + (r), DECLINED) + +AP_IMPLEMENT_HOOK_RUN_FIRST(int, quick_handler, (request_rec *r, int lookup), + (r, lookup), DECLINED) + +AP_IMPLEMENT_HOOK_VOID(optional_fn_retrieve, (void), ()) + +/**************************************************************** + * + * 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; + +AP_DECLARE_DATA module *ap_top_module = NULL; +AP_DECLARE_DATA module **ap_loaded_modules=NULL; + +typedef int (*handler_func)(request_rec *); +typedef void *(*dir_maker_func)(apr_pool_t *, char *); +typedef void *(*merger_func)(apr_pool_t *, void *, void *); + +/* maximum nesting level for config directories */ +#ifndef AP_MAX_INCLUDE_DIR_DEPTH +#define AP_MAX_INCLUDE_DIR_DEPTH (128) +#endif + +/* 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). + */ + +static ap_conf_vector_t *create_empty_config(apr_pool_t *p) +{ + void *conf_vector = apr_pcalloc(p, sizeof(void *) * + (total_modules + DYNAMIC_MODULE_LIMIT)); + return conf_vector; +} + +static ap_conf_vector_t *create_default_per_dir_config(apr_pool_t *p) +{ + void **conf_vector = apr_pcalloc(p, sizeof(void *) * + (total_modules + DYNAMIC_MODULE_LIMIT)); + module *modp; + + for (modp = ap_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 (ap_conf_vector_t *)conf_vector; +} + +AP_CORE_DECLARE(ap_conf_vector_t *) ap_merge_per_dir_configs(apr_pool_t *p, + ap_conf_vector_t *base, + ap_conf_vector_t *new_conf) +{ + void **conf_vector = apr_palloc(p, sizeof(void *) * total_modules); + void **base_vector = (void **)base; + void **new_vector = (void **)new_conf; + module *modp; + + for (modp = ap_top_module; modp; modp = modp->next) { + int i = modp->module_index; + + if (!new_vector[i]) { + conf_vector[i] = base_vector[i]; + } + else { + merger_func df = modp->merge_dir_config; + if (df && base_vector[i]) { + conf_vector[i] = (*df)(p, base_vector[i], new_vector[i]); + } + else + conf_vector[i] = new_vector[i]; + } + } + + return (ap_conf_vector_t *)conf_vector; +} + +static ap_conf_vector_t *create_server_config(apr_pool_t *p, server_rec *s) +{ + void **conf_vector = apr_pcalloc(p, sizeof(void *) * + (total_modules + DYNAMIC_MODULE_LIMIT)); + module *modp; + + for (modp = ap_top_module; modp; modp = modp->next) { + if (modp->create_server_config) + conf_vector[modp->module_index] = (*modp->create_server_config)(p, s); + } + + return (ap_conf_vector_t *)conf_vector; +} + +static void merge_server_configs(apr_pool_t *p, ap_conf_vector_t *base, + ap_conf_vector_t *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 = ap_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]); + } +} + +AP_CORE_DECLARE(ap_conf_vector_t *) ap_create_request_config(apr_pool_t *p) +{ + return create_empty_config(p); +} + +AP_CORE_DECLARE(ap_conf_vector_t *) ap_create_conn_config(apr_pool_t *p) +{ + return create_empty_config(p); +} + +AP_CORE_DECLARE(ap_conf_vector_t *) ap_create_per_dir_config(apr_pool_t *p) +{ + return create_empty_config(p); +} + +static int ap_invoke_filter_init(ap_filter_t *filters) +{ + while (filters) { + if (filters->frec->filter_init_func) { + int result = filters->frec->filter_init_func(filters); + if (result != OK) { + return result; + } + } + filters = filters->next; + } + return OK; +} + +AP_CORE_DECLARE(int) ap_invoke_handler(request_rec *r) +{ + const char *handler; + const char *p; + int result; + const char *old_handler = r->handler; + + /* + * The new insert_filter stage makes the most sense here. We only use + * it when we are going to run the request, so we must insert filters + * if any are available. Since the goal of this phase is to allow all + * modules to insert a filter if they want to, this filter returns + * void. I just can't see any way that this filter can reasonably + * fail, either your modules inserts something or it doesn't. rbb + */ + ap_run_insert_filter(r); + + /* Before continuing, allow each filter that is in the two chains to + * run their init function to let them do any magic before we could + * start generating data. + */ + result = ap_invoke_filter_init(r->input_filters); + if (result != OK) { + return result; + } + result = ap_invoke_filter_init(r->output_filters); + if (result != OK) { + return result; + } + + if (!r->handler) { + handler = r->content_type ? r->content_type : ap_default_type(r); + if ((p=ap_strchr_c(handler, ';')) != NULL) { + char *new_handler = (char *)apr_pmemdup(r->pool, handler, + p - handler + 1); + char *p2 = new_handler + (p - handler); + handler = new_handler; + + /* MIME type arguments */ + while (p2 > handler && p2[-1] == ' ') + --p2; /* strip trailing spaces */ + + *p2='\0'; + } + + r->handler = handler; + } + + result = ap_run_handler(r); + + r->handler = old_handler; + + if (result == DECLINED && r->handler && r->filename) { + ap_log_rerror(APLOG_MARK, APLOG_WARNING, 0, r, + "handler \"%s\" not found for: %s", r->handler, r->filename); + } + + return result == DECLINED ? HTTP_INTERNAL_SERVER_ERROR : result; +} + +AP_DECLARE(int) ap_method_is_limited(cmd_parms *cmd, const char *method) +{ + int methnum; + + methnum = ap_method_number_of(method); + + /* + * A method number either hardcoded into apache or + * added by a module and registered. + */ + if (methnum != M_INVALID) { + return (cmd->limited & (AP_METHOD_BIT << methnum)) ? 1 : 0; + } + + return 0; /* not found */ +} + +AP_DECLARE(void) ap_register_hooks(module *m, apr_pool_t *p) +{ + if (m->register_hooks) { + if (getenv("SHOW_HOOKS")) { + printf("Registering hooks for %s\n", m->name); + apr_hook_debug_enabled = 1; + } + + apr_hook_debug_current = m->name; + m->register_hooks(p); + } +} + +/* One-time setup for precompiled modules --- NOT to be done on restart */ + +AP_DECLARE(void) ap_add_module(module *m, apr_pool_t *p) +{ + /* 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) { + ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, + "%s: module \"%s\" is not compatible with this " + "version of Apache (found %d, need %d).", + ap_server_argv0, m->name, m->version, + MODULE_MAGIC_NUMBER_MAJOR); + ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, + "Please contact the vendor for the correct version."); + exit(1); + } + + if (m->next == NULL) { + m->next = ap_top_module; + ap_top_module = m; + } + + if (m->module_index == -1) { + m->module_index = total_modules++; + dynamic_modules++; + + if (dynamic_modules > DYNAMIC_MODULE_LIMIT) { + ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, + "%s: module \"%s\" could not be loaded, because" + " the dynamic", ap_server_argv0, m->name); + ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, + "module limit was reached. Please increase " + "DYNAMIC_MODULE_LIMIT and recompile."); + exit(1); + } + } + + /* 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 (ap_strrchr_c(m->name, '/')) + m->name = 1 + ap_strrchr_c(m->name, '/'); + + if (ap_strrchr_c(m->name, '\\')) + m->name = 1 + ap_strrchr_c(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*/ + + /* FIXME: is this the right place to call this? + * It doesn't appear to be + */ + ap_register_hooks(m, p); +} + +/* + * 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. + */ + +AP_DECLARE(void) ap_remove_module(module *m) +{ + module *modp; + + modp = ap_top_module; + if (modp == m) { + /* We are the top module, special case */ + ap_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, 0, 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--; +} + +AP_DECLARE(void) ap_add_loaded_module(module *mod, apr_pool_t *p) +{ + module **m; + + /* + * Add module pointer to top of chained module list + */ + ap_add_module(mod, p); + + /* + * 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; +} + +AP_DECLARE(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; +} + +AP_DECLARE(void) ap_setup_prelinked_modules(process_rec *process) +{ + module **m; + module **m2; + + apr_hook_global_pool=process->pconf; + + /* + * 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 **)apr_palloc(process->pool, + sizeof(module *) * (total_modules + DYNAMIC_MODULE_LIMIT + 1)); + + if (ap_loaded_modules == NULL) { + ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, + "Ouch! Out of memory in ap_setup_prelinked_modules()!"); + } + + 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, process->pconf); + + apr_hook_sort_all(); +} + +AP_DECLARE(const char *) ap_find_module_name(module *m) +{ + return m->name; +} + +AP_DECLARE(module *) ap_find_linked_module(const char *name) +{ + module *modp; + + for (modp = ap_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. */ +AP_DECLARE(int) ap_add_named_module(const char *name, apr_pool_t *p) +{ + 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, p); + } + + return 1; + } + } + + return 0; +} + +/***************************************************************** + * + * 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 = NULL; + + if ((parms->override & cmd->req_override) == 0) + return apr_pstrcat(parms->pool, cmd->name, " not allowed here", NULL); + + parms->info = cmd->cmd_data; + parms->cmd = cmd; + + switch (cmd->args_how) { + case RAW_ARGS: +#ifdef RESOLVE_ENV_PER_TOKEN + args = ap_resolve_env(parms->pool,args); +#endif + return cmd->AP_RAW_ARGS(parms, mconfig, args); + + case NO_ARGS: + if (*args != 0) + return apr_pstrcat(parms->pool, cmd->name, " takes no arguments", + NULL); + + return cmd->AP_NO_ARGS(parms, mconfig); + + case TAKE1: + w = ap_getword_conf(parms->pool, &args); + + if (*w == '\0' || *args != 0) + return apr_pstrcat(parms->pool, cmd->name, " takes one argument", + cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); + + return cmd->AP_TAKE1(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 apr_pstrcat(parms->pool, cmd->name, " takes two arguments", + cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); + + return cmd->AP_TAKE2(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 apr_pstrcat(parms->pool, cmd->name, " takes 1-2 arguments", + cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); + + return cmd->AP_TAKE2(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 apr_pstrcat(parms->pool, cmd->name, " takes three arguments", + cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); + + return cmd->AP_TAKE3(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 apr_pstrcat(parms->pool, cmd->name, + " takes two or three arguments", + cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); + + return cmd->AP_TAKE3(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 apr_pstrcat(parms->pool, cmd->name, + " takes one, two or three arguments", + cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); + + return cmd->AP_TAKE3(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 apr_pstrcat(parms->pool, cmd->name, + " takes one or three arguments", + cmd->errmsg ? ", " : NULL, cmd->errmsg, NULL); + + return cmd->AP_TAKE3(parms, mconfig, w, w2, w3); + + case ITERATE: + while (*(w = ap_getword_conf(parms->pool, &args)) != '\0') { + + errmsg = cmd->AP_TAKE1(parms, mconfig, w); + + if (errmsg && strcmp(errmsg, DECLINE_CMD) != 0) + return errmsg; + } + + return errmsg; + + case ITERATE2: + w = ap_getword_conf(parms->pool, &args); + + if (*w == '\0' || *args == 0) + return apr_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') { + + errmsg = cmd->AP_TAKE2(parms, mconfig, w, w2); + + if (errmsg && strcmp(errmsg, DECLINE_CMD) != 0) + return errmsg; + } + + return errmsg; + + case FLAG: + w = ap_getword_conf(parms->pool, &args); + + if (*w == '\0' || (strcasecmp(w, "on") && strcasecmp(w, "off"))) + return apr_pstrcat(parms->pool, cmd->name, " must be On or Off", + NULL); + + return cmd->AP_FLAG(parms, mconfig, strcasecmp(w, "off") != 0); + + default: + return apr_pstrcat(parms->pool, cmd->name, + " is improperly configured internally (server bug)", + NULL); + } +} + +AP_CORE_DECLARE(const command_rec *) ap_find_command(const char *name, + const command_rec *cmds) +{ + while (cmds->name) { + if (!strcasecmp(name, cmds->name)) + return cmds; + + ++cmds; + } + + return NULL; +} + +AP_CORE_DECLARE(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; +} + +AP_CORE_DECLARE(void *) ap_set_config_vectors(server_rec *server, + ap_conf_vector_t *section_vector, + const char *section, + module *mod, apr_pool_t *pconf) +{ + void *section_config = ap_get_module_config(section_vector, mod); + void *server_config = ap_get_module_config(server->module_config, mod); + + if (!section_config && mod->create_dir_config) { + /* ### need to fix the create_dir_config functions' prototype... */ + section_config = (*mod->create_dir_config)(pconf, (char *)section); + ap_set_module_config(section_vector, mod, section_config); + } + + if (!server_config && mod->create_server_config) { + server_config = (*mod->create_server_config)(pconf, server); + ap_set_module_config(server->module_config, mod, server_config); + } + + return section_config; +} + +static const char *execute_now(char *cmd_line, const char *args, + cmd_parms *parms, + apr_pool_t *p, apr_pool_t *ptemp, + ap_directive_t **sub_tree, + ap_directive_t *parent); + +static const char *ap_build_config_sub(apr_pool_t *p, apr_pool_t *temp_pool, + const char *l, cmd_parms *parms, + ap_directive_t **current, + ap_directive_t **curr_parent, + ap_directive_t **conftree) +{ + const char *retval = NULL; + const char *args; + char *cmd_name; + ap_directive_t *newdir; + module *mod = ap_top_module; + const command_rec *cmd; + + if (*l == '#' || *l == '\0') + return NULL; + +#if RESOLVE_ENV_PER_TOKEN + args = l; +#else + args = ap_resolve_env(temp_pool, l); +#endif + + cmd_name = ap_getword_conf(p, &args); + if (*cmd_name == '\0') { + /* Note: this branch should not occur. An empty line should have + * triggered the exit further above. + */ + return NULL; + } + + if (cmd_name[1] != '/') { + char *lastc = cmd_name + strlen(cmd_name) - 1; + if (*lastc == '>') { + *lastc = '\0' ; + } + if (cmd_name[0] == '<' && *args == '\0') { + args = ">"; + } + } + + newdir = apr_pcalloc(p, sizeof(ap_directive_t)); + newdir->filename = parms->config_file->name; + newdir->line_num = parms->config_file->line_number; + newdir->directive = cmd_name; + newdir->args = apr_pstrdup(p, args); + + if ((cmd = ap_find_command_in_modules(cmd_name, &mod)) != NULL) { + if (cmd->req_override & EXEC_ON_READ) { + ap_directive_t *sub_tree = NULL; + + parms->err_directive = newdir; + retval = execute_now(cmd_name, args, parms, p, temp_pool, + &sub_tree, *curr_parent); + if (*current) { + (*current)->next = sub_tree; + } + else { + *current = sub_tree; + if (*curr_parent) { + (*curr_parent)->first_child = (*current); + } + if (*current) { + (*current)->parent = (*curr_parent); + } + } + if (*current) { + if (!*conftree) { + /* Before walking *current to the end of the list, + * set the head to *current. + */ + *conftree = *current; + } + while ((*current)->next != NULL) { + (*current) = (*current)->next; + (*current)->parent = (*curr_parent); + } + } + return retval; + } + } + + if (cmd_name[0] == '<') { + if (cmd_name[1] != '/') { + (*current) = ap_add_node(curr_parent, *current, newdir, 1); + } + else if (*curr_parent == NULL) { + parms->err_directive = newdir; + return apr_pstrcat(p, cmd_name, + " without matching <", cmd_name + 2, + " section", NULL); + } + else { + char *bracket = cmd_name + strlen(cmd_name) - 1; + + if (*bracket != '>') { + parms->err_directive = newdir; + return apr_pstrcat(p, cmd_name, + "> directive missing closing '>'", NULL); + } + + *bracket = '\0'; + + if (strcasecmp(cmd_name + 2, + (*curr_parent)->directive + 1) != 0) { + parms->err_directive = newdir; + return apr_pstrcat(p, "Expected </", + (*curr_parent)->directive + 1, "> but saw ", + cmd_name, ">", NULL); + } + + *bracket = '>'; + + /* done with this section; move up a level */ + *current = *curr_parent; + *curr_parent = (*current)->parent; + } + } + else { + *current = ap_add_node(curr_parent, *current, newdir, 0); + } + + return retval; +} + +AP_DECLARE(const char *) ap_build_cont_config(apr_pool_t *p, + apr_pool_t *temp_pool, + cmd_parms *parms, + ap_directive_t **current, + ap_directive_t **curr_parent, + char *orig_directive) +{ + char *l; + char *bracket; + const char *retval; + ap_directive_t *sub_tree = NULL; + + /* Since this function can be called recursively, allocate + * the temporary 8k string buffer from the temp_pool rather + * than the stack to avoid over-running a fixed length stack. + */ + l = apr_palloc(temp_pool, MAX_STRING_LEN); + + bracket = apr_pstrcat(p, orig_directive + 1, ">", NULL); + while (!(ap_cfg_getline(l, MAX_STRING_LEN, parms->config_file))) { + if (!memcmp(l, "</", 2) + && (strcasecmp(l + 2, bracket) == 0) + && (*curr_parent == NULL)) { + break; + } + retval = ap_build_config_sub(p, temp_pool, l, parms, current, + curr_parent, &sub_tree); + if (retval != NULL) + return retval; + + if (sub_tree == NULL && curr_parent != NULL) { + sub_tree = *curr_parent; + } + + if (sub_tree == NULL && current != NULL) { + sub_tree = *current; + } + } + + *current = sub_tree; + return NULL; +} + +static const char *ap_walk_config_sub(const ap_directive_t *current, + cmd_parms *parms, + ap_conf_vector_t *section_vector) +{ + module *mod = ap_top_module; + + while (1) { + const command_rec *cmd; + + if (!(cmd = ap_find_command_in_modules(current->directive, &mod))) { + parms->err_directive = current; + return apr_pstrcat(parms->pool, "Invalid command '", + current->directive, + "', perhaps mis-spelled or defined by a module " + "not included in the server configuration", + NULL); + } + else { + void *dir_config = ap_set_config_vectors(parms->server, + section_vector, + parms->path, + mod, + parms->pool); + const char *retval; + + /* Once was enough? */ + if (cmd->req_override & EXEC_ON_READ) { + return NULL; + } + + retval = invoke_cmd(cmd, parms, dir_config, current->args); + if (retval == NULL) { + return NULL; + } + + if (strcmp(retval, DECLINE_CMD) != 0) { + /* If the directive in error has already been set, don't + * replace it. Otherwise, an error inside a container + * will be reported as occuring on the first line of the + * container. + */ + if (!parms->err_directive) { + parms->err_directive = current; + } + + return retval; + } + + mod = mod->next; /* Next time around, skip this one */ + } + } + /* NOTREACHED */ +} + +AP_DECLARE(const char *) ap_walk_config(ap_directive_t *current, + cmd_parms *parms, + ap_conf_vector_t *section_vector) +{ + ap_conf_vector_t *oldconfig = parms->context; + + parms->context = section_vector; + + /* scan through all directives, executing each one */ + for (; current != NULL; current = current->next) { + const char *errmsg; + + parms->directive = current; + + /* actually parse the command and execute the correct function */ + errmsg = ap_walk_config_sub(current, parms, section_vector); + if (errmsg != NULL) { + /* restore the context (just in case) */ + parms->context = oldconfig; + return errmsg; + } + } + + parms->context = oldconfig; + return NULL; +} + +AP_DECLARE(const char *) ap_build_config(cmd_parms *parms, + apr_pool_t *p, apr_pool_t *temp_pool, + ap_directive_t **conftree) +{ + ap_directive_t *current = *conftree; + ap_directive_t *curr_parent = NULL; + char *l = apr_palloc (temp_pool, MAX_STRING_LEN); + const char *errmsg; + + if (current != NULL) { + while (current->next) { + current = current->next; + } + } + + while (!(ap_cfg_getline(l, MAX_STRING_LEN, parms->config_file))) { + errmsg = ap_build_config_sub(p, temp_pool, l, parms, + ¤t, &curr_parent, conftree); + if (errmsg != NULL) + return errmsg; + + if (*conftree == NULL && curr_parent != NULL) { + *conftree = curr_parent; + } + + if (*conftree == NULL && current != NULL) { + *conftree = current; + } + } + + if (curr_parent != NULL) { + errmsg = ""; + + while (curr_parent != NULL) { + errmsg = apr_psprintf(p, "%s%s%s:%u: %s> was not closed.", + errmsg, + *errmsg == '\0' ? "" : APR_EOL_STR, + curr_parent->filename, + curr_parent->line_num, + curr_parent->directive); + + parms->err_directive = curr_parent; + curr_parent = curr_parent->parent; + } + + return errmsg; + } + + return NULL; +} + +/* + * Generic command functions... + */ + +AP_DECLARE_NONSTD(const char *) ap_set_string_slot(cmd_parms *cmd, + void *struct_ptr, + const char *arg) +{ + int offset = (int)(long)cmd->info; + + *(const char **)((char *)struct_ptr + offset) = arg; + + return NULL; +} + +AP_DECLARE_NONSTD(const char *) ap_set_int_slot(cmd_parms *cmd, + void *struct_ptr, + const char *arg) +{ + char *endptr; + char *error_str = NULL; + int offset = (int)(long)cmd->info; + + *(int *)((char*)struct_ptr + offset) = strtol(arg, &endptr, 10); + + if ((*arg == '\0') || (*endptr != '\0')) { + error_str = apr_psprintf(cmd->pool, + "Invalid value for directive %s, expected integer", + cmd->directive->directive); + } + + return error_str; +} + +AP_DECLARE_NONSTD(const char *) ap_set_string_slot_lower(cmd_parms *cmd, + void *struct_ptr, + const char *arg_) +{ + char *arg = apr_pstrdup(cmd->pool,arg_); + int offset = (int)(long)cmd->info; + + ap_str_tolower(arg); + *(char **)((char *)struct_ptr + offset) = arg; + + return NULL; +} + +AP_DECLARE_NONSTD(const char *) ap_set_flag_slot(cmd_parms *cmd, + void *struct_ptr_v, int arg) +{ + int offset = (int)(long)cmd->info; + char *struct_ptr = (char *)struct_ptr_v; + + *(int *)(struct_ptr + offset) = arg ? 1 : 0; + + return NULL; +} + +AP_DECLARE_NONSTD(const char *) ap_set_file_slot(cmd_parms *cmd, void *struct_ptr, + const char *arg) +{ + /* Prepend server_root to relative arg. + * This allows most args to be independent of server_root, + * so the server can be moved or mirrored with less pain. + */ + const char *path; + int offset = (int)(long)cmd->info; + + path = ap_server_root_relative(cmd->pool, arg); + + if (!path) { + return apr_pstrcat(cmd->pool, "Invalid file path ", + arg, NULL); + } + + *(const char **) ((char*)struct_ptr + offset) = path; + + return NULL; +} + +AP_DECLARE_NONSTD(const char *) ap_set_deprecated(cmd_parms *cmd, + void *struct_ptr, + const char *arg) +{ + return cmd->cmd->errmsg; +} + +/***************************************************************** + * + * Reading whole config files... + */ + +static cmd_parms default_parms = +{NULL, 0, -1, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL}; + +AP_DECLARE(char *) ap_server_root_relative(apr_pool_t *p, const char *file) +{ + char *newpath = NULL; + apr_status_t rv; + rv = apr_filepath_merge(&newpath, ap_server_root, file, + APR_FILEPATH_TRUENAME, p); + if (newpath && (rv == APR_SUCCESS || APR_STATUS_IS_EPATHWILD(rv) + || APR_STATUS_IS_ENOENT(rv) + || APR_STATUS_IS_ENOTDIR(rv))) { + return newpath; + } + else { + return NULL; + } +} + +AP_DECLARE(const char *) ap_soak_end_container(cmd_parms *cmd, char *directive) +{ + char l[MAX_STRING_LEN]; + const char *args; + char *cmd_name; + + while(!(ap_cfg_getline(l, MAX_STRING_LEN, cmd->config_file))) { +#if RESOLVE_ENV_PER_TOKEN + args = l; +#else + args = ap_resolve_env(cmd->temp_pool, l); +#endif + + cmd_name = ap_getword_conf(cmd->pool, &args); + if (cmd_name[0] == '<') { + if (cmd_name[1] == '/') { + cmd_name[strlen(cmd_name) - 1] = '\0'; + + if (strcasecmp(cmd_name + 2, directive + 1) != 0) { + return apr_pstrcat(cmd->pool, "Expected </", + directive + 1, "> but saw ", + cmd_name, ">", NULL); + } + + return NULL; /* found end of container */ + } + else { + const char *msg; + + if (*args == '\0' && cmd_name[strlen(cmd_name) - 1] == '>') { + cmd_name[strlen(cmd_name) - 1] = '\0'; + } + + if ((msg = ap_soak_end_container(cmd, cmd_name)) != NULL) { + return msg; + } + } + } + } + + return apr_pstrcat(cmd->pool, "Expected </", + directive + 1, "> before end of configuration", + NULL); +} + +static const char *execute_now(char *cmd_line, const char *args, + cmd_parms *parms, + apr_pool_t *p, apr_pool_t *ptemp, + ap_directive_t **sub_tree, + ap_directive_t *parent) +{ + module *mod = ap_top_module; + const command_rec *cmd; + + if (!(cmd = ap_find_command_in_modules(cmd_line, &mod))) { + return apr_pstrcat(parms->pool, "Invalid command '", + cmd_line, + "', perhaps mis-spelled or defined by a module " + "not included in the server configuration", + NULL); + } + else { + return invoke_cmd(cmd, parms, sub_tree, args); + } +} + +/* 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 apr_array_header_t pointer for the string array. + */ +typedef struct { + apr_array_header_t *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 */ + apr_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, apr_array_header_t *arr, + ap_directive_t **conftree, apr_pool_t *p, + apr_pool_t *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_build_config(&parms, p, ptemp, conftree); + if (errmsg) { + ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, + "Syntax error in -C/-c directive:"); + ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, + "%s", errmsg); + exit(1); + } + + 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); +} + +static void process_resource_config_nofnmatch(server_rec *s, const char *fname, + ap_directive_t **conftree, + apr_pool_t *p, + apr_pool_t *ptemp, + unsigned depth) +{ + cmd_parms parms; + ap_configfile_t *cfp; + const char *errmsg; + + if (ap_is_directory(p, fname)) { + apr_dir_t *dirp; + apr_finfo_t dirent; + int current; + apr_array_header_t *candidates = NULL; + fnames *fnew; + apr_status_t rv; + char errmsg[120], *path = apr_pstrdup(p, fname); + + if (++depth > AP_MAX_INCLUDE_DIR_DEPTH) { + fprintf(stderr, "%s: Directory %s exceeds the maximum include " + "directory nesting level of %u. You have probably a " + "recursion somewhere.\n", ap_server_argv0, path, + AP_MAX_INCLUDE_DIR_DEPTH); + 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. + */ + rv = apr_dir_open(&dirp, path, p); + if (rv != APR_SUCCESS) { + fprintf(stderr, "%s: could not open config directory %s: %s\n", + ap_server_argv0, path, + apr_strerror(rv, errmsg, sizeof errmsg)); + exit(1); + } + + candidates = apr_array_make(p, 1, sizeof(fnames)); + while (apr_dir_read(&dirent, APR_FINFO_DIRENT, dirp) == APR_SUCCESS) { + /* strip out '.' and '..' */ + if (strcmp(dirent.name, ".") + && strcmp(dirent.name, "..")) { + fnew = (fnames *) apr_array_push(candidates); + fnew->fname = ap_make_full_path(p, path, dirent.name); + } + } + + apr_dir_close(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]; + process_resource_config_nofnmatch(s, fnew->fname, conftree, p, + ptemp, depth); + } + } + + 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 (ap_pcfg_openfile(&cfp, p, fname) != APR_SUCCESS) { + ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, + "%s: could not open document config file %s", + ap_server_argv0, fname); + exit(1); + } + + parms.config_file = cfp; + + errmsg = ap_build_config(&parms, p, ptemp, conftree); + + if (errmsg != NULL) { + ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, + "Syntax error on line %d of %s:", + parms.err_directive->line_num, + parms.err_directive->filename); + ap_log_error(APLOG_MARK, APLOG_STARTUP, 0, NULL, + "%s", errmsg); + exit(1); + } + + ap_cfg_closefile(cfp); + + return; +} + +AP_DECLARE(void) ap_process_resource_config(server_rec *s, const char *fname, + ap_directive_t **conftree, + apr_pool_t *p, + apr_pool_t *ptemp) +{ + /* XXX: lstat() won't work on the wildcard pattern... + */ + + /* 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)))) { + apr_finfo_t finfo; + + if (apr_lstat(&finfo, fname, APR_FINFO_TYPE, p) != APR_SUCCESS) + return; + } + + if (!apr_fnmatch_test(fname)) { + process_resource_config_nofnmatch(s, fname, conftree, p, ptemp, 0); + } + else { + apr_dir_t *dirp; + apr_finfo_t dirent; + int current; + apr_array_header_t *candidates = NULL; + fnames *fnew; + apr_status_t rv; + char errmsg[120], *path = apr_pstrdup(p, fname), *pattern = NULL; + + pattern = ap_strrchr(path, '/'); + + AP_DEBUG_ASSERT(pattern != NULL); /* path must be absolute. */ + + *pattern++ = '\0'; + + if (apr_fnmatch_test(path)) { + fprintf(stderr, "%s: wildcard patterns not allowed in Include " + "%s\n", ap_server_argv0, fname); + exit(1); + } + + if (!ap_is_directory(p, path)){ + fprintf(stderr, "%s: Include directory '%s' not found", + ap_server_argv0, path); + exit(1); + } + + if (!apr_fnmatch_test(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. + */ + rv = apr_dir_open(&dirp, path, p); + if (rv != APR_SUCCESS) { + fprintf(stderr, "%s: could not open config directory %s: %s\n", + ap_server_argv0, path, + apr_strerror(rv, errmsg, sizeof errmsg)); + exit(1); + } + + candidates = apr_array_make(p, 1, sizeof(fnames)); + while (apr_dir_read(&dirent, APR_FINFO_DIRENT, dirp) == APR_SUCCESS) { + /* strip out '.' and '..' */ + if (strcmp(dirent.name, ".") + && strcmp(dirent.name, "..") + && (apr_fnmatch(pattern, dirent.name, + FNM_PERIOD) == APR_SUCCESS)) { + fnew = (fnames *) apr_array_push(candidates); + fnew->fname = ap_make_full_path(p, path, dirent.name); + } + } + + apr_dir_close(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]; + process_resource_config_nofnmatch(s, fnew->fname, conftree, p, + ptemp, 0); + } + } + } + + return; +} + +AP_DECLARE(void) ap_process_config_tree(server_rec *s, + ap_directive_t *conftree, + apr_pool_t *p, apr_pool_t *ptemp) +{ + const char *errmsg; + cmd_parms parms; + + parms = default_parms; + parms.pool = p; + parms.temp_pool = ptemp; + parms.server = s; + parms.override = (RSRC_CONF | OR_ALL) & ~(OR_AUTHCFG | OR_LIMIT); + parms.limited = -1; + + errmsg = ap_walk_config(conftree, &parms, s->lookup_defaults); + if (errmsg) { + ap_log_perror(APLOG_MARK, APLOG_STARTUP, 0, p, + "Syntax error on line %d of %s:", + parms.err_directive->line_num, + parms.err_directive->filename); + ap_log_perror(APLOG_MARK, APLOG_STARTUP, 0, p, + "%s", errmsg); + exit(1); + } +} + +AP_CORE_DECLARE(int) ap_parse_htaccess(ap_conf_vector_t **result, + request_rec *r, int override, + const char *d, const char *access_name) +{ + ap_configfile_t *f = NULL; + cmd_parms parms; + char *filename = NULL; + const struct htaccess_result *cache; + struct htaccess_result *new; + ap_conf_vector_t *dc = NULL; + apr_status_t status; + + /* firstly, search cache */ + for (cache = r->htaccess; cache != NULL; cache = cache->next) { + if (cache->override == override && strcmp(cache->dir, d) == 0) { + *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 = apr_pstrdup(r->pool, d); + + /* loop through the access names and find the first one */ + while (access_name[0]) { + /* AFAICT; there is no use of the actual 'filename' against + * any canonicalization, so we will simply take the given + * name, ignoring case sensitivity and aliases + */ + filename = ap_make_full_path(r->pool, d, + ap_getword_conf(r->pool, &access_name)); + status = ap_pcfg_openfile(&f, r->pool, filename); + + if (status == APR_SUCCESS) { + const char *errmsg; + ap_directive_t *temptree = NULL; + + dc = ap_create_per_dir_config(r->pool); + + parms.config_file = f; + errmsg = ap_build_config(&parms, r->pool, r->pool, &temptree); + if (errmsg == NULL) + errmsg = ap_walk_config(temptree, &parms, dc); + + ap_cfg_closefile(f); + + if (errmsg) { + ap_log_rerror(APLOG_MARK, APLOG_ALERT, 0, r, + "%s: %s", filename, errmsg); + return HTTP_INTERNAL_SERVER_ERROR; + } + + *result = dc; + break; + } + else { + if (!APR_STATUS_IS_ENOENT(status) + && !APR_STATUS_IS_ENOTDIR(status)) { + ap_log_rerror(APLOG_MARK, APLOG_CRIT, status, r, + "%s pcfg_openfile: unable to check htaccess file, " + "ensure it is readable", + filename); + apr_table_setn(r->notes, "error-notes", + "Server unable to read htaccess file, denying " + "access to be safe"); + return HTTP_FORBIDDEN; + } + } + } + + /* cache it */ + new = apr_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; +} + +AP_CORE_DECLARE(const char *) ap_init_virtual_host(apr_pool_t *p, + const char *hostname, + server_rec *main_server, + server_rec **ps) +{ + server_rec *s = (server_rec *) apr_pcalloc(p, sizeof(server_rec)); + + /* TODO: this crap belongs in http_core */ + s->process = main_server->process; + s->server_admin = NULL; + s->server_hostname = NULL; + s->error_fname = 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 = apr_array_make(p, 4, sizeof(char **)); + s->wild_names = apr_array_make(p, 4, sizeof(char **)); + + s->module_config = create_empty_config(p); + s->lookup_defaults = ap_create_per_dir_config(p); + + 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); +} + + +AP_DECLARE(void) ap_fixup_virtual_hosts(apr_pool_t *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->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; + + /* 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(apr_pool_t *p) +{ + /* Global virtual host hash bucket pointers. Init to null. */ + ap_init_vhost_config(p); +} + +static server_rec *init_server_config(process_rec *process, apr_pool_t *p) +{ + apr_status_t rv; + server_rec *s = (server_rec *) apr_pcalloc(p, sizeof(server_rec)); + + apr_file_open_stderr(&s->error_log, p); + s->process = process; + s->port = 0; + s->server_admin = DEFAULT_ADMIN; + s->server_hostname = NULL; + s->error_fname = DEFAULT_ERRORLOG; + s->loglevel = DEFAULT_LOGLEVEL; + 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 = apr_time_from_sec(DEFAULT_TIMEOUT); + s->keep_alive_timeout = apr_time_from_sec(DEFAULT_KEEPALIVE_TIMEOUT); + s->keep_alive_max = DEFAULT_KEEPALIVE; + s->keep_alive = 1; + s->next = NULL; + s->addrs = apr_pcalloc(p, sizeof(server_addr_rec)); + + /* NOT virtual host; don't match any real network interface */ + rv = apr_sockaddr_info_get(&s->addrs->host_addr, + NULL, APR_INET, 0, 0, p); + ap_assert(rv == APR_SUCCESS); /* otherwise: bug or no storage */ + + 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; +} + + +AP_DECLARE(server_rec*) ap_read_config(process_rec *process, apr_pool_t *ptemp, + const char *filename, + ap_directive_t **conftree) +{ + const char *confname; + apr_pool_t *p = process->pconf; + server_rec *s = init_server_config(process, p); + + init_config_globals(p); + + /* All server-wide config files now have the SAME syntax... */ + process_command_config(s, ap_server_pre_read_config, conftree, + p, ptemp); + + /* process_command_config may change the ServerRoot so + * compute this config file name afterwards. + */ + confname = ap_server_root_relative(p, filename); + + if (!confname) { + ap_log_error(APLOG_MARK, APLOG_STARTUP|APLOG_CRIT, + APR_EBADPATH, NULL, "Invalid config file path %s", + filename); + exit(1); + } + + ap_process_resource_config(s, confname, conftree, p, ptemp); + + process_command_config(s, ap_server_post_read_config, conftree, + p, ptemp); + + return s; +} + +AP_DECLARE(void) ap_single_module_configure(apr_pool_t *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)); +} + +AP_DECLARE(void) ap_run_rewrite_args(process_rec *process) +{ + module *m; + + for (m = ap_top_module; m; m = m->next) { + if (m->rewrite_args) { + (*m->rewrite_args)(process); + } + } +} + +/******************************************************************** + * 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. + */ +AP_DECLARE(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. */ +AP_DECLARE(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); +} + +AP_DECLARE(const char *) ap_show_mpm(void) +{ + return MPM_NAME; +} |