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- /* ====================================================================
- * The Apache Software License, Version 1.1
- *
- * Copyright (c) 2000 The Apache Software Foundation. All rights
- * reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. The end-user documentation included with the redistribution,
- * if any, must include the following acknowledgment:
- * "This product includes software developed by the
- * Apache Software Foundation (http://www.apache.org/)."
- * Alternately, this acknowledgment may appear in the software itself,
- * if and wherever such third-party acknowledgments normally appear.
- *
- * 4. The names "Apache" and "Apache Software Foundation" must
- * not be used to endorse or promote products derived from this
- * software without prior written permission. For written
- * permission, please contact apache@apache.org.
- *
- * 5. Products derived from this software may not be called "Apache",
- * nor may "Apache" appear in their name, without prior written
- * permission of the Apache Software Foundation.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
- * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
- * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
- * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
- * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- * ====================================================================
- *
- * This software consists of voluntary contributions made by many
- * individuals on behalf of the Apache Software Foundation. For more
- * information on the Apache Software Foundation, please see
- * <http://www.apache.org/>.
- *
- * Portions of this software are based upon public domain software
- * originally written at the National Center for Supercomputing Applications,
- * University of Illinois, Urbana-Champaign.
- */
-
- #ifndef APACHE_HTTP_CONFIG_H
- #define APACHE_HTTP_CONFIG_H
-
- #ifdef __cplusplus
- extern "C" {
- #endif
-
- /*
- * The central data structures around here...
- */
-
- /* Command dispatch structures... */
-
- /* Note that for all of these except RAW_ARGS, the config routine is
- * passed a freshly allocated string which can be modified or stored
- * or whatever... it's only necessary to do pstrdup() stuff with
- * RAW_ARGS.
- */
- enum cmd_how {
- RAW_ARGS, /* cmd_func parses command line itself */
- TAKE1, /* one argument only */
- TAKE2, /* two arguments only */
- ITERATE, /* one argument, occuring multiple times
- * (e.g., IndexIgnore)
- */
- ITERATE2, /* two arguments, 2nd occurs multiple times
- * (e.g., AddIcon)
- */
- FLAG, /* One of 'On' or 'Off' */
- NO_ARGS, /* No args at all, e.g. </Directory> */
- TAKE12, /* one or two arguments */
- TAKE3, /* three arguments only */
- TAKE23, /* two or three arguments */
- TAKE123, /* one, two or three arguments */
- TAKE13 /* one or three arguments */
- };
-
- typedef struct command_struct {
- const char *name; /* Name of this command */
- const char *(*func) (); /* Function invoked */
- void *cmd_data; /* Extra data, for functions which
- * implement multiple commands...
- */
- int req_override; /* What overrides need to be allowed to
- * enable this command.
- */
- enum cmd_how args_how; /* What the command expects as arguments */
-
- const char *errmsg; /* 'usage' message, in case of syntax errors */
- } command_rec;
-
- /* The allowed locations for a configuration directive are the union of
- * those indicated by each set bit in the req_override mask.
- *
- * (req_override & RSRC_CONF) => *.conf outside <Directory> or <Location>
- * (req_override & ACCESS_CONF) => *.conf inside <Directory> or <Location>
- * (req_override & OR_AUTHCFG) => *.conf inside <Directory> or <Location>
- * and .htaccess when AllowOverride AuthConfig
- * (req_override & OR_LIMIT) => *.conf inside <Directory> or <Location>
- * and .htaccess when AllowOverride Limit
- * (req_override & OR_OPTIONS) => *.conf anywhere
- * and .htaccess when AllowOverride Options
- * (req_override & OR_FILEINFO) => *.conf anywhere
- * and .htaccess when AllowOverride FileInfo
- * (req_override & OR_INDEXES) => *.conf anywhere
- * and .htaccess when AllowOverride Indexes
- */
- #define OR_NONE 0
- #define OR_LIMIT 1
- #define OR_OPTIONS 2
- #define OR_FILEINFO 4
- #define OR_AUTHCFG 8
- #define OR_INDEXES 16
- #define OR_UNSET 32
- #define ACCESS_CONF 64
- #define RSRC_CONF 128
- #define OR_ALL (OR_LIMIT|OR_OPTIONS|OR_FILEINFO|OR_AUTHCFG|OR_INDEXES)
-
- /* This can be returned by a function if they don't wish to handle
- * a command. Make it something not likely someone will actually use
- * as an error code.
- */
-
- #define DECLINE_CMD "\a\b"
-
- /*
- * This structure is passed to a command which is being invoked,
- * to carry a large variety of miscellaneous data which is all of
- * use to *somebody*...
- */
-
- typedef struct {
- void *info; /* Argument to command from cmd_table */
- int override; /* Which allow-override bits are set */
- int limited; /* Which methods are <Limit>ed */
-
- configfile_t *config_file; /* Config file structure from pcfg_openfile() */
-
- ap_pool *pool; /* Pool to allocate new storage in */
- struct pool *temp_pool; /* Pool for scratch memory; persists during
- * configuration, but wiped before the first
- * request is served...
- */
- server_rec *server; /* Server_rec being configured for */
- char *path; /* If configuring for a directory,
- * pathname of that directory.
- * NOPE! That's what it meant previous to the
- * existance of <Files>, <Location> and regex
- * matching. Now the only usefulness that can
- * be derived from this field is whether a command
- * is being called in a server context (path == NULL)
- * or being called in a dir context (path != NULL).
- */
- const command_rec *cmd; /* configuration command */
- const char *end_token; /* end token required to end a nested section */
- void *context; /* per_dir_config vector passed
- * to handle_command */
- } cmd_parms;
-
- /* This structure records the existence of handlers in a module... */
-
- typedef struct {
- const char *content_type; /* MUST be all lower case */
- int (*handler) (request_rec *);
- } handler_rec;
-
- /*
- * Module structures. Just about everything is dispatched through
- * these, directly or indirectly (through the command and handler
- * tables).
- */
-
- typedef struct module_struct {
- int version; /* API version, *not* module version;
- * check that module is compatible with this
- * version of the server.
- */
- int minor_version; /* API minor version. Provides API feature
- * milestones. Not checked during module init
- */
- int module_index; /* Index to this modules structures in
- * config vectors.
- */
-
- const char *name;
- void *dynamic_load_handle;
-
- struct module_struct *next;
-
- unsigned long magic; /* Magic Cookie to identify a module structure;
- * It's mainly important for the DSO facility
- * (see also mod_so).
- */
-
- /* init() occurs after config parsing, but before any children are
- * forked.
- * Modules should not rely on the order in which create_server_config
- * and create_dir_config are called.
- */
- #ifdef ULTRIX_BRAIN_DEATH
- void (*init) ();
- void *(*create_dir_config) ();
- void *(*merge_dir_config) ();
- void *(*create_server_config) ();
- void *(*merge_server_config) ();
- #else
- void (*init) (server_rec *, pool *);
- void *(*create_dir_config) (pool *p, char *dir);
- void *(*merge_dir_config) (pool *p, void *base_conf, void *new_conf);
- void *(*create_server_config) (pool *p, server_rec *s);
- void *(*merge_server_config) (pool *p, void *base_conf, void *new_conf);
- #endif
-
- const command_rec *cmds;
- const handler_rec *handlers;
-
- /* Hooks for getting into the middle of server ops...
-
- * translate_handler --- translate URI to filename
- * access_checker --- check access by host address, etc. All of these
- * run; if all decline, that's still OK.
- * check_user_id --- get and validate user id from the HTTP request
- * auth_checker --- see if the user (from check_user_id) is OK *here*.
- * If all of *these* decline, the request is rejected
- * (as a SERVER_ERROR, since the module which was
- * supposed to handle this was configured wrong).
- * type_checker --- Determine MIME type of the requested entity;
- * sets content_type, _encoding and _language fields.
- * logger --- log a transaction.
- * post_read_request --- run right after read_request or internal_redirect,
- * and not run during any subrequests.
- */
-
- int (*translate_handler) (request_rec *);
- int (*ap_check_user_id) (request_rec *);
- int (*auth_checker) (request_rec *);
- int (*access_checker) (request_rec *);
- int (*type_checker) (request_rec *);
- int (*fixer_upper) (request_rec *);
- int (*logger) (request_rec *);
- int (*header_parser) (request_rec *);
-
- /* Regardless of the model the server uses for managing "units of
- * execution", i.e. multi-process, multi-threaded, hybrids of those,
- * there is the concept of a "heavy weight process". That is, a
- * process with its own memory space, file spaces, etc. This method,
- * child_init, is called once for each heavy-weight process before
- * any requests are served. Note that no provision is made yet for
- * initialization per light-weight process (i.e. thread). The
- * parameters passed here are the same as those passed to the global
- * init method above.
- */
- #ifdef ULTRIX_BRAIN_DEATH
- void (*child_init) ();
- void (*child_exit) ();
- #else
- void (*child_init) (server_rec *, pool *);
- void (*child_exit) (server_rec *, pool *);
- #endif
- int (*post_read_request) (request_rec *);
- } module;
-
- /* Initializer for the first few module slots, which are only
- * really set up once we start running. Note that the first two slots
- * provide a version check; this should allow us to deal with changes to
- * the API. The major number should reflect changes to the API handler table
- * itself or removal of functionality. The minor number should reflect
- * additions of functionality to the existing API. (the server can detect
- * an old-format module, and either handle it back-compatibly, or at least
- * signal an error). See src/include/ap_mmn.h for MMN version history.
- */
-
- #define STANDARD_MODULE_STUFF MODULE_MAGIC_NUMBER_MAJOR, \
- MODULE_MAGIC_NUMBER_MINOR, \
- -1, \
- __FILE__, \
- NULL, \
- NULL, \
- MODULE_MAGIC_COOKIE
-
- /* Generic accessors for other modules to get at their own module-specific
- * data
- */
-
- API_EXPORT(void *) ap_get_module_config(void *conf_vector, module *m);
- API_EXPORT(void) ap_set_module_config(void *conf_vector, module *m, void *val);
-
- #define ap_get_module_config(v,m) \
- (((void **)(v))[(m)->module_index])
- #define ap_set_module_config(v,m,val) \
- ((((void **)(v))[(m)->module_index]) = (val))
-
- /* Generic command handling function... */
-
- API_EXPORT_NONSTD(const char *) ap_set_string_slot(cmd_parms *, char *, char *);
- API_EXPORT_NONSTD(const char *) ap_set_string_slot_lower(cmd_parms *, char *, char *);
- API_EXPORT_NONSTD(const char *) ap_set_flag_slot(cmd_parms *, char *, int);
- API_EXPORT_NONSTD(const char *) ap_set_file_slot(cmd_parms *, char *, char *);
-
- /* For modules which need to read config files, open logs, etc. ...
- * this returns the fname argument if it begins with '/'; otherwise
- * it relativizes it wrt server_root.
- */
-
- API_EXPORT(char *) ap_server_root_relative(pool *p, char *fname);
-
- /* Finally, the hook for dynamically loading modules in... */
-
- API_EXPORT(void) ap_add_module(module *m);
- API_EXPORT(void) ap_remove_module(module *m);
- API_EXPORT(void) ap_add_loaded_module(module *mod);
- API_EXPORT(void) ap_remove_loaded_module(module *mod);
- API_EXPORT(int) ap_add_named_module(const char *name);
- API_EXPORT(void) ap_clear_module_list(void);
- API_EXPORT(const char *) ap_find_module_name(module *m);
- API_EXPORT(module *) ap_find_linked_module(const char *name);
-
- /* for implementing subconfigs and customized config files */
- API_EXPORT(const char *) ap_srm_command_loop(cmd_parms *parms, void *config);
-
- #ifdef CORE_PRIVATE
-
- extern API_VAR_EXPORT module *top_module;
-
- extern module *ap_prelinked_modules[];
- extern module *ap_preloaded_modules[];
- extern API_VAR_EXPORT module **ap_loaded_modules;
-
- /* For mod_so.c... */
-
- void ap_single_module_configure(pool *p, server_rec *s, module *m);
-
- /* For http_main.c... */
-
- server_rec *ap_read_config(pool *conf_pool, pool *temp_pool, char *config_name);
- void ap_init_modules(pool *p, server_rec *s);
- void ap_child_init_modules(pool *p, server_rec *s);
- void ap_child_exit_modules(pool *p, server_rec *s);
- void ap_setup_prelinked_modules(void);
- void ap_show_directives(void);
- void ap_show_modules(void);
- void ap_cleanup_method_ptrs(void);
-
- /* For http_request.c... */
-
- void *ap_create_request_config(pool *p);
- CORE_EXPORT(void *) ap_create_per_dir_config(pool *p);
- void *ap_merge_per_dir_configs(pool *p, void *base, void *new);
-
- /* For http_core.c... (<Directory> command and virtual hosts) */
-
- int ap_parse_htaccess(void **result, request_rec *r, int override,
- const char *path, const char *access_name);
-
- CORE_EXPORT(const char *) ap_init_virtual_host(pool *p, const char *hostname,
- server_rec *main_server, server_rec **);
- void ap_process_resource_config(server_rec *s, char *fname, pool *p, pool *ptemp);
-
- /* ap_check_cmd_context() definitions: */
- API_EXPORT(const char *) ap_check_cmd_context(cmd_parms *cmd, unsigned forbidden);
-
- /* ap_check_cmd_context(): Forbidden in: */
- #define NOT_IN_VIRTUALHOST 0x01 /* <Virtualhost> */
- #define NOT_IN_LIMIT 0x02 /* <Limit> */
- #define NOT_IN_DIRECTORY 0x04 /* <Directory> */
- #define NOT_IN_LOCATION 0x08 /* <Location> */
- #define NOT_IN_FILES 0x10 /* <Files> */
- #define NOT_IN_DIR_LOC_FILE (NOT_IN_DIRECTORY|NOT_IN_LOCATION|NOT_IN_FILES) /* <Directory>/<Location>/<Files>*/
- #define GLOBAL_ONLY (NOT_IN_VIRTUALHOST|NOT_IN_LIMIT|NOT_IN_DIR_LOC_FILE)
-
-
- /* Module-method dispatchers, also for http_request.c */
-
- int ap_translate_name(request_rec *);
- int ap_check_access(request_rec *); /* check access on non-auth basis */
- int ap_check_user_id(request_rec *); /* obtain valid username from client auth */
- int ap_check_auth(request_rec *); /* check (validated) user is authorized here */
- int ap_find_types(request_rec *); /* identify MIME type */
- int ap_run_fixups(request_rec *); /* poke around for other metainfo, etc.... */
- int ap_invoke_handler(request_rec *);
- int ap_log_transaction(request_rec *r);
- int ap_header_parse(request_rec *);
- int ap_run_post_read_request(request_rec *);
-
- /* for mod_perl */
-
- CORE_EXPORT(const command_rec *) ap_find_command(const char *name, const command_rec *cmds);
- CORE_EXPORT(const command_rec *) ap_find_command_in_modules(const char *cmd_name, module **mod);
- CORE_EXPORT(void *) ap_set_config_vectors(cmd_parms *parms, void *config, module *mod);
- CORE_EXPORT(const char *) ap_handle_command(cmd_parms *parms, void *config, const char *l);
-
- #endif
-
- #ifdef __cplusplus
- }
- #endif
-
- #endif /* !APACHE_HTTP_CONFIG_H */
-