| /* ==================================================================== |
| * 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. |
| */ |
| |
| /* |
| * http_auth: authentication |
| * |
| * Rob McCool & Brian Behlendorf. |
| * |
| * Adapted to Apache by rst. |
| * |
| */ |
| |
| #define APR_WANT_STRFUNC |
| #include "apr_want.h" |
| #include "apr_strings.h" |
| #include "apr_dbm.h" |
| #include "apr_md5.h" /* for apr_password_validate */ |
| |
| #include "ap_provider.h" |
| #include "httpd.h" |
| #include "http_config.h" |
| #include "http_core.h" |
| #include "http_log.h" |
| #include "http_protocol.h" |
| #include "http_request.h" /* for ap_hook_(check_user_id | auth_checker)*/ |
| |
| #include "mod_auth.h" |
| |
| typedef struct { |
| char *pwfile; |
| char *dbmtype; |
| } authn_dbm_config_rec; |
| |
| static void *create_authn_dbm_dir_config(apr_pool_t *p, char *d) |
| { |
| authn_dbm_config_rec *conf = apr_palloc(p, sizeof(*conf)); |
| |
| conf->pwfile = NULL; |
| conf->dbmtype = "default"; |
| |
| return conf; |
| } |
| |
| static const char *set_dbm_type(cmd_parms *cmd, |
| void *dir_config, |
| const char *arg) |
| { |
| authn_dbm_config_rec *conf = dir_config; |
| |
| conf->dbmtype = apr_pstrdup(cmd->pool, arg); |
| return NULL; |
| } |
| |
| static const command_rec authn_dbm_cmds[] = |
| { |
| AP_INIT_TAKE1("AuthDBMUserFile", ap_set_file_slot, |
| (void *)APR_OFFSETOF(authn_dbm_config_rec, pwfile), |
| OR_AUTHCFG, "dbm database file containing user IDs and passwords"), |
| AP_INIT_TAKE1("AuthDBMType", set_dbm_type, |
| NULL, |
| OR_AUTHCFG, "what type of DBM file the user file is"), |
| {NULL} |
| }; |
| |
| module AP_MODULE_DECLARE_DATA authn_dbm_module; |
| |
| static apr_status_t fetch_dbm(const char *dbmtype, const char *dbmfile, |
| const char *user, apr_datum_t *val, |
| apr_pool_t *pool) |
| { |
| apr_dbm_t *f; |
| apr_datum_t key; |
| apr_status_t rv; |
| |
| rv = apr_dbm_open_ex(&f, dbmtype, dbmfile, APR_DBM_READONLY, |
| APR_OS_DEFAULT, pool); |
| |
| if (rv != APR_SUCCESS) { |
| return rv; |
| } |
| |
| key.dptr = (char*)user; |
| #ifndef NETSCAPE_DBM_COMPAT |
| key.dsize = strlen(key.dptr); |
| #else |
| key.dsize = strlen(key.dptr) + 1; |
| #endif |
| |
| rv = apr_dbm_fetch(f, key, val); |
| |
| apr_dbm_close(f); |
| |
| return rv; |
| } |
| |
| static authn_status check_dbm_pw(request_rec *r, const char *user, |
| const char *password) |
| { |
| authn_dbm_config_rec *conf = ap_get_module_config(r->per_dir_config, |
| &authn_dbm_module); |
| apr_datum_t dbm_pw; |
| apr_status_t rv; |
| char *dbm_password = NULL; |
| |
| rv = fetch_dbm(conf->dbmtype, conf->pwfile, user, &dbm_pw, r->pool); |
| |
| if (rv != APR_SUCCESS) { |
| ap_log_rerror(APLOG_MARK, APLOG_ERR, rv, r, |
| "could not open dbm (type %s) auth file: %s", |
| conf->dbmtype, conf->pwfile); |
| return AUTH_GENERAL_ERROR; |
| } |
| |
| if (dbm_pw.dptr) { |
| dbm_password = apr_pstrmemdup(r->pool, dbm_pw.dptr, dbm_pw.dsize); |
| } |
| |
| if (!dbm_password) { |
| return AUTH_USER_NOT_FOUND; |
| } |
| |
| rv = apr_password_validate(password, dbm_password); |
| |
| if (rv != APR_SUCCESS) { |
| return AUTH_DENIED; |
| } |
| |
| return AUTH_GRANTED; |
| } |
| |
| static const authn_provider authn_dbm_provider = |
| { |
| &check_dbm_pw, |
| NULL, /* No realm support yet. */ |
| }; |
| |
| static void register_hooks(apr_pool_t *p) |
| { |
| ap_register_provider(p, AUTHN_PROVIDER_GROUP, "dbm", &authn_dbm_provider); |
| } |
| |
| module AP_MODULE_DECLARE_DATA authn_dbm_module = |
| { |
| STANDARD20_MODULE_STUFF, |
| create_authn_dbm_dir_config, /* dir config creater */ |
| NULL, /* dir merger --- default is to override */ |
| NULL, /* server config */ |
| NULL, /* merge server config */ |
| authn_dbm_cmds, /* command apr_table_t */ |
| register_hooks /* register hooks */ |
| }; |