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Diffstat (limited to 'modules/mappers/mod_rewrite.h')
| -rw-r--r-- | modules/mappers/mod_rewrite.h | 484 |
1 files changed, 0 insertions, 484 deletions
diff --git a/modules/mappers/mod_rewrite.h b/modules/mappers/mod_rewrite.h deleted file mode 100644 index 2a42032cbf..0000000000 --- a/modules/mappers/mod_rewrite.h +++ /dev/null @@ -1,484 +0,0 @@ -/* ==================================================================== - * The Apache Software License, Version 1.1 - * - * Copyright (c) 2000-2002 The Apache Software Foundation. All rights - * reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. The end-user documentation included with the redistribution, - * if any, must include the following acknowledgment: - * "This product includes software developed by the - * Apache Software Foundation (http://www.apache.org/)." - * Alternately, this acknowledgment may appear in the software itself, - * if and wherever such third-party acknowledgments normally appear. - * - * 4. The names "Apache" and "Apache Software Foundation" must - * not be used to endorse or promote products derived from this - * software without prior written permission. For written - * permission, please contact apache@apache.org. - * - * 5. Products derived from this software may not be called "Apache", - * nor may "Apache" appear in their name, without prior written - * permission of the Apache Software Foundation. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED - * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES - * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF - * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, - * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT - * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - * ==================================================================== - * - * This software consists of voluntary contributions made by many - * individuals on behalf of the Apache Software Foundation. For more - * information on the Apache Software Foundation, please see - * <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 MOD_REWRITE_H -#define MOD_REWRITE_H 1 - -/* -** _ _ _ -** _ __ ___ ___ __| | _ __ _____ ___ __(_) |_ ___ -** | '_ ` _ \ / _ \ / _` | | '__/ _ \ \ /\ / / '__| | __/ _ \ -** | | | | | | (_) | (_| | | | | __/\ V V /| | | | || __/ -** |_| |_| |_|\___/ \__,_|___|_| \___| \_/\_/ |_| |_|\__\___| -** |_____| -** -** URL Rewriting Module -** -** This module uses a rule-based rewriting engine (based on a -** regular-expression parser) to rewrite requested URLs on the fly. -** -** It supports an unlimited number of additional rule conditions (which can -** operate on a lot of variables, even on HTTP headers) for granular -** matching and even external database lookups (either via plain text -** tables, DBM hash files or even external processes) for advanced URL -** substitution. -** -** It operates on the full URLs (including the PATH_INFO part) both in -** per-server context (httpd.conf) and per-dir context (.htaccess) and even -** can generate QUERY_STRING parts on result. The rewriting result finally -** can lead to internal subprocessing, external request redirection or even -** to internal proxy throughput. -** -** This module was originally written in April 1996 and -** gifted exclusively to the The Apache Software Foundation in July 1997 by -** -** Ralf S. Engelschall -** rse@engelschall.com -** www.engelschall.com -*/ - -#include "apr.h" - -#define APR_WANT_STRFUNC -#define APR_WANT_MEMFUNC -#include "apr_want.h" - - /* Include from the underlaying Unix system ... */ -#if APR_HAVE_STDARG_H -#include <stdarg.h> -#endif -#if APR_HAVE_STDLIB_H -#include <stdlib.h> -#endif -#if APR_HAVE_CTYPE_H -#include <ctype.h> -#endif -#if APR_HAVE_SYS_TYPES_H -#include <sys/types.h> -#endif - -#if APR_HAS_THREADS -#include "apr_lock.h" -#include "apr_thread_mutex.h" -#endif -#include "ap_config.h" - - /* Include from the Apache server ... */ -#define CORE_PRIVATE -#include "httpd.h" -#include "http_config.h" -#include "http_request.h" -#include "http_core.h" -#include "http_log.h" -#include "http_vhost.h" - - /* - * The key in the r->notes apr_table_t wherein we store our accumulated - * Vary values, and the one used for per-condition checks in a chain. - */ -#define VARY_KEY "rewrite-Vary" -#define VARY_KEY_THIS "rewrite-Vary-this" - - /* The NDBM support: - * We support only NDBM files. - * But we have to stat the file for the mtime, - * so we also need to know the file extension - */ -#ifndef NO_DBM_REWRITEMAP -#if defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ - && __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 1 -#include <db1/ndbm.h> -#else -#include <ndbm.h> -#endif -#if defined(DBM_SUFFIX) -#define NDBM_FILE_SUFFIX DBM_SUFFIX -#elif defined(__FreeBSD__) || (defined(DB_LOCK) && defined(DB_SHMEM)) -#define NDBM_FILE_SUFFIX ".db" -#else -#define NDBM_FILE_SUFFIX ".pag" -#endif -#endif - - -/* -** -** Some defines -** -*/ - -#define ENVVAR_SCRIPT_URL "SCRIPT_URL" -#define ENVVAR_SCRIPT_URI "SCRIPT_URI" - -#ifndef SUPPORT_DBM_REWRITEMAP -#define SUPPORT_DBM_REWRITEMAP 0 -#endif - -#define REWRITE_FORCED_MIMETYPE_NOTEVAR "rewrite-forced-mimetype" - -#define CONDFLAG_NONE 1<<0 -#define CONDFLAG_NOCASE 1<<1 -#define CONDFLAG_NOTMATCH 1<<2 -#define CONDFLAG_ORNEXT 1<<3 - -#define RULEFLAG_NONE 1<<0 -#define RULEFLAG_FORCEREDIRECT 1<<1 -#define RULEFLAG_LASTRULE 1<<2 -#define RULEFLAG_NEWROUND 1<<3 -#define RULEFLAG_CHAIN 1<<4 -#define RULEFLAG_IGNOREONSUBREQ 1<<5 -#define RULEFLAG_NOTMATCH 1<<6 -#define RULEFLAG_PROXY 1<<7 -#define RULEFLAG_PASSTHROUGH 1<<8 -#define RULEFLAG_FORBIDDEN 1<<9 -#define RULEFLAG_GONE 1<<10 -#define RULEFLAG_QSAPPEND 1<<11 -#define RULEFLAG_NOCASE 1<<12 -#define RULEFLAG_NOESCAPE 1<<13 - -#define ACTION_NORMAL 1<<0 -#define ACTION_NOESCAPE 1<<1 - -#define MAPTYPE_TXT 1<<0 -#define MAPTYPE_DBM 1<<1 -#define MAPTYPE_PRG 1<<2 -#define MAPTYPE_INT 1<<3 -#define MAPTYPE_RND 1<<4 - -#define ENGINE_DISABLED 1<<0 -#define ENGINE_ENABLED 1<<1 - -#define OPTION_NONE 1<<0 -#define OPTION_INHERIT 1<<1 - -#define CACHEMODE_TS 1<<0 -#define CACHEMODE_TTL 1<<1 - -#define CACHE_TLB_ROWS 1024 -#define CACHE_TLB_COLS 4 - -#ifndef FALSE -#define FALSE 0 -#define TRUE !FALSE -#endif - -#ifndef NO -#define NO FALSE -#define YES TRUE -#endif - -#ifndef RAND_MAX -#define RAND_MAX 32767 -#endif - -#ifndef LONG_STRING_LEN -#define LONG_STRING_LEN 2048 -#endif - -#define MAX_ENV_FLAGS 15 - -#define MAX_NMATCH 10 - -/* -** -** our private data structures we handle with -** -*/ - - /* the list structures for holding the mapfile information - * and the rewrite rules - */ -typedef struct { - const char *name; /* the name of the map */ - const char *datafile; /* filename for map data files */ - const char *checkfile; /* filename to check for map existence */ - int type; /* the type of the map */ - apr_file_t *fpin; /* in file pointer for program maps */ - apr_file_t *fpout; /* out file pointer for program maps */ - apr_file_t *fperr; /* err file pointer for program maps */ - char *(*func)(request_rec *, /* function pointer for internal maps */ - char *); -} rewritemap_entry; - -typedef struct { - char *input; /* Input string of RewriteCond */ - char *pattern; /* the RegExp pattern string */ - regex_t *regexp; - int flags; /* Flags which control the match */ -} rewritecond_entry; - -typedef struct { - apr_array_header_t *rewriteconds; /* the corresponding RewriteCond entries */ - char *pattern; /* the RegExp pattern string */ - regex_t *regexp; /* the RegExp pattern compilation */ - char *output; /* the Substitution string */ - int flags; /* Flags which control the substitution */ - char *forced_mimetype; /* forced MIME type of substitution */ - int forced_responsecode; /* forced HTTP redirect response status */ - char *env[MAX_ENV_FLAGS+1]; /* added environment variables */ - int skip; /* number of next rules to skip */ -} rewriterule_entry; - - - /* the per-server or per-virtual-server configuration - * statically generated once on startup for every server - */ -typedef struct { - int state; /* the RewriteEngine state */ - int options; /* the RewriteOption state */ - const char *rewritelogfile; /* the RewriteLog filename */ - apr_file_t *rewritelogfp; /* the RewriteLog open filepointer */ - int rewriteloglevel; /* the RewriteLog level of verbosity */ - apr_array_header_t *rewritemaps; /* the RewriteMap entries */ - apr_array_header_t *rewriteconds; /* the RewriteCond entries (temporary) */ - apr_array_header_t *rewriterules; /* the RewriteRule entries */ - server_rec *server; /* the corresponding server indicator */ -} rewrite_server_conf; - - - /* the per-directory configuration - * generated on-the-fly by Apache server for current request - */ -typedef struct { - int state; /* the RewriteEngine state */ - int options; /* the RewriteOption state */ - apr_array_header_t *rewriteconds; /* the RewriteCond entries (temporary) */ - apr_array_header_t *rewriterules; /* the RewriteRule entries */ - char *directory; /* the directory where it applies */ - const char *baseurl; /* the base-URL where it applies */ -} rewrite_perdir_conf; - - - /* the cache structures, - * a 4-way hash apr_table_t with LRU functionality - */ -typedef struct cacheentry { - apr_time_t time; - char *key; - char *value; -} cacheentry; - -typedef struct tlbentry { - int t[CACHE_TLB_COLS]; -} cachetlbentry; - -typedef struct cachelist { - char *resource; - apr_array_header_t *entries; - apr_array_header_t *tlb; -} cachelist; - -typedef struct cache { - apr_pool_t *pool; - apr_array_header_t *lists; -#if APR_HAS_THREADS - apr_thread_mutex_t *lock; -#endif -} cache; - - - /* the regex structure for the - * substitution of backreferences - */ -typedef struct backrefinfo { - char *source; - int nsub; - regmatch_t regmatch[10]; -} backrefinfo; - - -/* -** -** forward declarations -** -*/ - - /* config structure handling */ -static void *config_server_create(apr_pool_t *p, server_rec *s); -static void *config_server_merge (apr_pool_t *p, void *basev, void *overridesv); -static void *config_perdir_create(apr_pool_t *p, char *path); -static void *config_perdir_merge (apr_pool_t *p, void *basev, void *overridesv); - - /* config directive handling */ -static const char *cmd_rewriteengine(cmd_parms *cmd, - void *dconf, int flag); -static const char *cmd_rewriteoptions(cmd_parms *cmd, - void *dconf, - const char *option); -static const char *cmd_rewriteoptions_setoption(apr_pool_t *p, int *options, - const char *name); -static const char *cmd_rewritelog (cmd_parms *cmd, void *dconf, const char *a1); -static const char *cmd_rewriteloglevel(cmd_parms *cmd, void *dconf, const char *a1); -static const char *cmd_rewritemap (cmd_parms *cmd, void *dconf, - const char *a1, const char *a2); -static const char *cmd_rewritelock(cmd_parms *cmd, void *dconf, const char *a1); -static const char *cmd_rewritebase(cmd_parms *cmd, void *dconf, - const char *a1); -static const char *cmd_rewritecond(cmd_parms *cmd, void *dconf, - const char *str); -static const char *cmd_rewritecond_parseflagfield(apr_pool_t *p, - rewritecond_entry *new, - char *str); -static const char *cmd_rewritecond_setflag(apr_pool_t *p, rewritecond_entry *cfg, - char *key, char *val); -static const char *cmd_rewriterule(cmd_parms *cmd, void *dconf, - const char *str); -static const char *cmd_rewriterule_parseflagfield(apr_pool_t *p, - rewriterule_entry *new, - char *str); -static const char *cmd_rewriterule_setflag(apr_pool_t *p, rewriterule_entry *cfg, - char *key, char *val); - - /* initialisation */ -static int init_module(apr_pool_t *p, - apr_pool_t *plog, - apr_pool_t *ptemp, - server_rec *s); -static void init_child(apr_pool_t *p, server_rec *s); - - /* runtime hooks */ -static int hook_uri2file (request_rec *r); -static int hook_mimetype (request_rec *r); -static int hook_fixup (request_rec *r); -static int handler_redirect(request_rec *r); - - /* rewriting engine */ -static int apply_rewrite_list(request_rec *r, apr_array_header_t *rewriterules, - char *perdir); -static int apply_rewrite_rule(request_rec *r, rewriterule_entry *p, - char *perdir); -static int apply_rewrite_cond(request_rec *r, rewritecond_entry *p, - char *perdir, backrefinfo *briRR, - backrefinfo *briRC); - -static void do_expand(request_rec *r, char *input, char *buffer, int nbuf, - backrefinfo *briRR, backrefinfo *briRC); -static void do_expand_env(request_rec *r, char *env[], - backrefinfo *briRR, backrefinfo *briRC); - - /* URI transformation function */ -static void splitout_queryargs(request_rec *r, int qsappend); -static void fully_qualify_uri(request_rec *r); -static void reduce_uri(request_rec *r); -static int is_absolute_uri(char *uri); -static char *expand_tildepaths(request_rec *r, char *uri); - - /* rewrite map support functions */ -static char *lookup_map(request_rec *r, char *name, char *key); -static char *lookup_map_txtfile(request_rec *r, const char *file, char *key); -#ifndef NO_DBM_REWRITEMAP -static char *lookup_map_dbmfile(request_rec *r, const char *file, char *key); -#endif -static char *lookup_map_program(request_rec *r, apr_file_t *fpin, - apr_file_t *fpout, char *key); -static char *lookup_map_internal(request_rec *r, - char *(*func)(request_rec *r, char *key), - char *key); -static char *rewrite_mapfunc_toupper(request_rec *r, char *key); -static char *rewrite_mapfunc_tolower(request_rec *r, char *key); -static char *rewrite_mapfunc_escape(request_rec *r, char *key); -static char *rewrite_mapfunc_unescape(request_rec *r, char *key); -static char *select_random_value_part(request_rec *r, char *value); -static void rewrite_rand_init(void); -static int rewrite_rand(int l, int h); - - /* rewriting logfile support */ -static void open_rewritelog(server_rec *s, apr_pool_t *p); -static void rewritelog(request_rec *r, int level, const char *text, ...) - __attribute__((format(printf,3,4))); -static char *current_logtime(request_rec *r); - - /* rewriting lockfile support */ -static void rewritelock_create(server_rec *s, apr_pool_t *p); -static apr_status_t rewritelock_remove(void *data); - - /* program map support */ -static void run_rewritemap_programs(server_rec *s, apr_pool_t *p); -static apr_status_t rewritemap_program_child(apr_pool_t *p, const char *progname, - apr_file_t **fpout, apr_file_t **fpin, - apr_file_t **fperr); - - /* env variable support */ -static char *lookup_variable(request_rec *r, char *var); -static char *lookup_header(request_rec *r, const char *name); - - /* caching functions */ -static cache *init_cache(apr_pool_t *p); -static char *get_cache_string(cache *c, const char *res, int mode, apr_time_t mtime, - char *key); -static void set_cache_string(cache *c, const char *res, int mode, apr_time_t mtime, - char *key, char *value); -static cacheentry *retrieve_cache_string(cache *c, const char *res, char *key); -static void store_cache_string(cache *c, const char *res, cacheentry *ce); - - /* misc functions */ -static char *subst_prefix_path(request_rec *r, char *input, char *match, - const char *subst); -static int parseargline(char *str, char **a1, char **a2, char **a3); -static int prefix_stat(const char *path, apr_finfo_t *sb); -static void add_env_variable(request_rec *r, char *s); -static int subreq_ok(request_rec *r); - - /* Lexicographic Comparison */ -static int compare_lexicography(char *cpNum1, char *cpNum2); - - /* Bracketed expression handling */ -static char *find_closing_bracket(char *s, int left, int right); -static char *find_char_in_brackets(char *s, int c, int left, int right); - -#endif /* MOD_REWRITE_H */ |