| /* ==================================================================== |
| * 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 |
| * |
| * Adapted to Apache by rst. |
| * |
| * dirkx - Added Authoritative control to allow passing on to lower |
| * modules if and only if the userid is not known to this |
| * module. A known user with a faulty or absent password still |
| * causes an AuthRequired. The default is 'Authoritative', i.e. |
| * no control is passed along. |
| */ |
| |
| #include "apr_strings.h" |
| #include "apr_md5.h" /* for apr_password_validate */ |
| |
| #include "ap_config.h" |
| #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" |
| |
| #include "mod_auth.h" |
| |
| typedef struct { |
| char *pwfile; |
| } authn_file_config_rec; |
| |
| static void *create_authn_file_dir_config(apr_pool_t *p, char *d) |
| { |
| authn_file_config_rec *conf = apr_palloc(p, sizeof(*conf)); |
| |
| conf->pwfile = NULL; /* just to illustrate the default really */ |
| return conf; |
| } |
| |
| static const char *set_authn_file_slot(cmd_parms *cmd, void *offset, |
| const char *f, const char *t) |
| { |
| if (t && strcmp(t, "standard")) { |
| return apr_pstrcat(cmd->pool, "Invalid auth file type: ", t, NULL); |
| } |
| |
| return ap_set_file_slot(cmd, offset, f); |
| } |
| |
| static const command_rec authn_file_cmds[] = |
| { |
| AP_INIT_TAKE12("AuthUserFile", set_authn_file_slot, |
| (void *)APR_OFFSETOF(authn_file_config_rec, pwfile), |
| OR_AUTHCFG, "text file containing user IDs and passwords"), |
| {NULL} |
| }; |
| |
| module AP_MODULE_DECLARE_DATA authn_file_module; |
| |
| static authn_status check_password(request_rec *r, const char *user, |
| const char *password) |
| { |
| authn_file_config_rec *conf = ap_get_module_config(r->per_dir_config, |
| &authn_file_module); |
| ap_configfile_t *f; |
| char l[MAX_STRING_LEN]; |
| apr_status_t status; |
| char *file_password = NULL; |
| |
| status = ap_pcfg_openfile(&f, r->pool, conf->pwfile); |
| |
| if (status != APR_SUCCESS) { |
| ap_log_rerror(APLOG_MARK, APLOG_ERR, status, r, |
| "Could not open password file: %s", conf->pwfile); |
| return AUTH_GENERAL_ERROR; |
| } |
| |
| while (!(ap_cfg_getline(l, MAX_STRING_LEN, f))) { |
| const char *rpw, *w; |
| |
| /* Skip # or blank lines. */ |
| if ((l[0] == '#') || (!l[0])) { |
| continue; |
| } |
| |
| rpw = l; |
| w = ap_getword(r->pool, &rpw, ':'); |
| |
| if (!strcmp(user, w)) { |
| file_password = ap_getword(r->pool, &rpw, ':'); |
| break; |
| } |
| } |
| ap_cfg_closefile(f); |
| |
| if (!file_password) { |
| return AUTH_USER_NOT_FOUND; |
| } |
| |
| status = apr_password_validate(password, file_password); |
| if (status != APR_SUCCESS) { |
| return AUTH_DENIED; |
| } |
| |
| return AUTH_GRANTED; |
| } |
| |
| static authn_status get_realm_hash(request_rec *r, const char *user, |
| const char *realm, char **rethash) |
| { |
| authn_file_config_rec *conf = ap_get_module_config(r->per_dir_config, |
| &authn_file_module); |
| ap_configfile_t *f; |
| char l[MAX_STRING_LEN]; |
| apr_status_t status; |
| char *file_hash = NULL; |
| |
| status = ap_pcfg_openfile(&f, r->pool, conf->pwfile); |
| |
| if (status != APR_SUCCESS) { |
| ap_log_rerror(APLOG_MARK, APLOG_ERR, status, r, |
| "Could not open password file: %s", conf->pwfile); |
| return AUTH_GENERAL_ERROR; |
| } |
| |
| while (!(ap_cfg_getline(l, MAX_STRING_LEN, f))) { |
| const char *rpw, *w, *x; |
| |
| /* Skip # or blank lines. */ |
| if ((l[0] == '#') || (!l[0])) { |
| continue; |
| } |
| |
| rpw = l; |
| w = ap_getword(r->pool, &rpw, ':'); |
| x = ap_getword(r->pool, &rpw, ':'); |
| |
| if (x && w && !strcmp(user, w) && !strcmp(realm, x)) { |
| /* Remember that this is a md5 hash of user:realm:password. */ |
| file_hash = ap_getword(r->pool, &rpw, ':'); |
| break; |
| } |
| } |
| ap_cfg_closefile(f); |
| |
| if (!file_hash) { |
| return AUTH_USER_NOT_FOUND; |
| } |
| |
| *rethash = file_hash; |
| |
| return AUTH_USER_FOUND; |
| } |
| |
| static const authn_provider authn_file_provider = |
| { |
| &check_password, |
| &get_realm_hash, |
| }; |
| |
| static void register_hooks(apr_pool_t *p) |
| { |
| ap_register_provider(p, AUTHN_PROVIDER_GROUP, "file", &authn_file_provider); |
| } |
| |
| module AP_MODULE_DECLARE_DATA authn_file_module = |
| { |
| STANDARD20_MODULE_STUFF, |
| create_authn_file_dir_config, /* dir config creater */ |
| NULL, /* dir merger --- default is to override */ |
| NULL, /* server config */ |
| NULL, /* merge server config */ |
| authn_file_cmds, /* command apr_table_t */ |
| register_hooks /* register hooks */ |
| }; |
