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- /* ====================================================================
- * Copyright (c) 1995 The Apache Group. 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. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * 4. The names "Apache Server" and "Apache Group" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission.
- *
- * 5. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the Apache Group
- * for use in the Apache HTTP server project (http://www.apache.org/)."
- *
- * THIS SOFTWARE IS PROVIDED BY THE APACHE GROUP ``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 GROUP OR
- * IT'S 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 Group and was originally based
- * on public domain software written at the National Center for
- * Supercomputing Applications, University of Illinois, Urbana-Champaign.
- * For more information on the Apache Group and the Apache HTTP server
- * project, please see <http://www.apache.org/>.
- *
- */
-
-
- /*
- * mod_auth_db: authentication
- *
- * Original work by Rob McCool & Brian Behlendorf.
- *
- * Adapted to Apache by rst (mod_auth_dbm)
- *
- * Adapted for Berkeley DB by Andrew Cohen
- *
- * mod_auth_db was based on mod_auth_dbm.
- *
- * Warning, this is not a drop in replacement for mod_auth_dbm,
- * for people wanting to switch from dbm to Berkeley DB.
- * It requires the use of AuthDBUserFile and AuthDBGroupFile
- * instead of AuthDBMUserFile AuthDBMGroupFile
- *
- * Also, in the configuration file you need to specify
- * db_auth_module rather than dbm_auth_module
- *
- * On some BSD systems (e.g. FreeBSD and NetBSD) dbm is automatically
- * mapped to Berkeley DB. You can use either mod_auth_dbm or
- * mod_auth_db. The latter makes it more obvious that it's Berkeley.
- */
-
- #include "httpd.h"
- #include "http_config.h"
- #include "http_core.h"
- #include "http_log.h"
- #include "http_protocol.h"
- #include <db.h>
-
- typedef struct {
-
- char *auth_dbpwfile;
- char *auth_dbgrpfile;
-
- } db_auth_config_rec;
-
- void *create_db_auth_dir_config (pool *p, char *d)
- {
- return pcalloc (p, sizeof(db_auth_config_rec));
- }
-
- command_rec db_auth_cmds[] = {
- { "AuthDBUserFile", set_string_slot,
- (void*)XtOffsetOf(db_auth_config_rec, auth_dbpwfile),
- OR_AUTHCFG, TAKE1, NULL },
- { "AuthDBGroupFile", set_string_slot,
- (void*)XtOffsetOf(db_auth_config_rec, auth_dbgrpfile),
- OR_AUTHCFG, TAKE1, NULL },
- { NULL }
- };
-
- module db_auth_module;
-
- char *get_db_pw(request_rec *r, char *user, const char *auth_dbpwfile) {
- DB *f;
- DBT d, q;
- char *pw = NULL;
-
- q.data = user;
- q.size = strlen(q.data);
-
- if(!(f=dbopen(auth_dbpwfile,O_RDONLY,0664,DB_HASH,NULL))) {
- log_reason ("could not open db auth file", (char *) auth_dbpwfile, r);
- return NULL;
- }
-
- if (!((f->get)(f,&q,&d,0))) {
- pw = palloc (r->pool, d.size + 1);
- strncpy(pw,d.data,d.size);
- pw[d.size] = '\0'; /* Terminate the string */
- }
-
- (f->close)(f);
- return pw;
- }
-
- /* We do something strange with the group file. If the group file
- * contains any : we assume the format is
- * key=username value=":"groupname [":"anything here is ignored]
- * otherwise we now (0.8.14+) assume that the format is
- * key=username value=groupname
- * The first allows the password and group files to be the same
- * physical DB file; key=username value=password":"groupname[":"anything]
- *
- * mark@telescope.org, 22Sep95
- */
-
- char *get_db_grp(request_rec *r, char *user, const char *auth_dbgrpfile) {
- char *grp_data = get_db_pw (r, user, auth_dbgrpfile);
- char *grp_colon; char *grp_colon2;
-
- if (grp_data == NULL) return NULL;
-
- if ((grp_colon = strchr(grp_data, ':'))!=NULL) {
- grp_colon2 = strchr(++grp_colon, ':');
- if (grp_colon2) *grp_colon2='\0';
- return grp_colon;
- }
- return grp_data;
- }
-
- int db_authenticate_basic_user (request_rec *r)
- {
- db_auth_config_rec *sec =
- (db_auth_config_rec *)get_module_config (r->per_dir_config,
- &db_auth_module);
- conn_rec *c = r->connection;
- char *sent_pw, *real_pw, *colon_pw;
- char errstr[MAX_STRING_LEN];
- int res;
-
- if ((res = get_basic_auth_pw (r, &sent_pw)))
- return res;
-
- if(!sec->auth_dbpwfile)
- return DECLINED;
-
- if(!(real_pw = get_db_pw(r, c->user, sec->auth_dbpwfile))) {
- sprintf(errstr,"DB user %s not found", c->user);
- log_reason (errstr, r->filename, r);
- note_basic_auth_failure (r);
- return AUTH_REQUIRED;
- }
- /* Password is up to first : if exists */
- colon_pw = strchr(real_pw,':');
- if (colon_pw) *colon_pw='\0';
- /* anyone know where the prototype for crypt is? */
- if(strcmp(real_pw,(char *)crypt(sent_pw,real_pw))) {
- sprintf(errstr,"user %s: password mismatch",c->user);
- log_reason (errstr, r->uri, r);
- note_basic_auth_failure (r);
- return AUTH_REQUIRED;
- }
- return OK;
- }
-
- /* Checking ID */
-
- int db_check_auth(request_rec *r) {
- db_auth_config_rec *sec =
- (db_auth_config_rec *)get_module_config (r->per_dir_config,
- &db_auth_module);
- char *user = r->connection->user;
- int m = r->method_number;
- char errstr[MAX_STRING_LEN];
-
- array_header *reqs_arr = requires (r);
- require_line *reqs = reqs_arr ? (require_line *)reqs_arr->elts : NULL;
-
- register int x;
- char *t, *w;
-
- if (!sec->auth_dbgrpfile) return DECLINED;
- if (!reqs_arr) return DECLINED;
-
- for(x=0; x < reqs_arr->nelts; x++) {
-
- if (! (reqs[x].method_mask & (1 << m))) continue;
-
- t = reqs[x].requirement;
- w = getword(r->pool, &t, ' ');
-
- if(!strcmp(w,"group") && sec->auth_dbgrpfile) {
- char *orig_groups,*groups,*v;
-
- if (!(groups = get_db_grp(r, user, sec->auth_dbgrpfile))) {
- sprintf(errstr,"user %s not in DB group file %s",
- user, sec->auth_dbgrpfile);
- log_reason (errstr, r->filename, r);
- note_basic_auth_failure (r);
- return AUTH_REQUIRED;
- }
- orig_groups = groups;
- while(t[0]) {
- w = getword(r->pool, &t, ' ');
- groups = orig_groups;
- while(groups[0]) {
- v = getword(r->pool, &groups,',');
- if(!strcmp(v,w))
- return OK;
- }
- }
- sprintf(errstr,"user %s not in right group",user);
- log_reason (errstr, r->filename, r);
- note_basic_auth_failure(r);
- return AUTH_REQUIRED;
- }
- }
-
- return DECLINED;
- }
-
-
- module db_auth_module = {
- STANDARD_MODULE_STUFF,
- NULL, /* initializer */
- create_db_auth_dir_config, /* dir config creater */
- NULL, /* dir merger --- default is to override */
- NULL, /* server config */
- NULL, /* merge server config */
- db_auth_cmds, /* command table */
- NULL, /* handlers */
- NULL, /* filename translation */
- db_authenticate_basic_user, /* check_user_id */
- db_check_auth, /* check auth */
- NULL, /* check access */
- NULL, /* type_checker */
- NULL, /* fixups */
- NULL /* logger */
- };
-
-
-