| /* ==================================================================== |
| * 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, |
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| * 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. |
| * |
| * Version 0.5 May 1996 |
| * |
| * Modified by Dirk.vanGulik@jrc.it to |
| * |
| * Adapted to allow anonymous logins, just like with Anon-FTP, when |
| * one gives the magic user name 'anonymous' and ones email address |
| * as the password. |
| * |
| * Just add the following tokes to your <directory> setup: |
| * |
| * Anonymous magic-userid [magic-userid]... |
| * |
| * Anonymous_MustGiveEmail [ on | off ] default = on |
| * Anonymous_LogEmail [ on | off ] default = on |
| * Anonymous_VerifyEmail [ on | off ] default = off |
| * Anonymous_NoUserId [ on | off ] default = off |
| * Anonymous_Authoritative [ on | off ] default = off |
| * |
| * The magic user id is something like 'anonymous', it is NOT case sensitive. |
| * |
| * The MustGiveEmail flag can be used to force users to enter something |
| * in the password field (like an email address). Default is on. |
| * |
| * Furthermore the 'NoUserID' flag can be set to allow completely empty |
| * usernames in as well; this can be is convenient as a single return |
| * in broken GUIs like W95 is often given by the user. The Default is off. |
| * |
| * Dirk.vanGulik@jrc.it; http://ewse.ceo.org; http://me-www.jrc.it/~dirkx |
| * |
| */ |
| |
| #include "apr_strings.h" |
| |
| #define APR_WANT_STRFUNC |
| #include "apr_want.h" |
| |
| #include "httpd.h" |
| #include "http_config.h" |
| #include "http_core.h" |
| #include "http_log.h" |
| #include "http_request.h" |
| #include "http_protocol.h" |
| |
| |
| typedef struct anon_auth { |
| char *password; |
| struct anon_auth *next; |
| } anon_auth; |
| |
| typedef struct { |
| |
| anon_auth *anon_auth_passwords; |
| int anon_auth_nouserid; |
| int anon_auth_logemail; |
| int anon_auth_verifyemail; |
| int anon_auth_mustemail; |
| int anon_auth_authoritative; |
| |
| } anon_auth_config_rec; |
| |
| |
| static void *create_anon_auth_dir_config(apr_pool_t *p, char *d) |
| { |
| anon_auth_config_rec *conf = apr_palloc(p, sizeof(*conf)); |
| |
| /* just to illustrate the defaults really. */ |
| conf->anon_auth_passwords = NULL; |
| |
| conf->anon_auth_nouserid = 0; |
| conf->anon_auth_logemail = 1; |
| conf->anon_auth_verifyemail = 0; |
| conf->anon_auth_mustemail = 1; |
| conf->anon_auth_authoritative = 0; |
| return conf; |
| } |
| |
| static const char *anon_set_string_slots(cmd_parms *cmd, |
| void *my_config, const char *arg) |
| { |
| anon_auth_config_rec *conf = my_config; |
| anon_auth *first; |
| |
| if (!(*arg)) |
| return "Anonymous string cannot be empty, use Anonymous_NoUserId instead"; |
| |
| /* squeeze in a record */ |
| first = conf->anon_auth_passwords; |
| |
| if (!(conf->anon_auth_passwords = apr_palloc(cmd->pool, sizeof(anon_auth))) || |
| !(conf->anon_auth_passwords->password = apr_pstrdup(cmd->pool, arg))) |
| return "Failed to claim memory for an anonymous password..."; |
| |
| /* and repair the next */ |
| conf->anon_auth_passwords->next = first; |
| |
| return NULL; |
| } |
| |
| static const command_rec anon_auth_cmds[] = |
| { |
| AP_INIT_ITERATE("Anonymous", anon_set_string_slots, NULL, OR_AUTHCFG, |
| "a space-separated list of user IDs"), |
| AP_INIT_FLAG("Anonymous_MustGiveEmail", ap_set_flag_slot, |
| (void *)APR_XtOffsetOf(anon_auth_config_rec, anon_auth_mustemail), |
| OR_AUTHCFG, "Limited to 'on' or 'off'"), |
| AP_INIT_FLAG("Anonymous_NoUserId", ap_set_flag_slot, |
| (void *)APR_XtOffsetOf(anon_auth_config_rec, anon_auth_nouserid), |
| OR_AUTHCFG, "Limited to 'on' or 'off'"), |
| AP_INIT_FLAG("Anonymous_VerifyEmail", ap_set_flag_slot, |
| (void *)APR_XtOffsetOf(anon_auth_config_rec, anon_auth_verifyemail), |
| OR_AUTHCFG, "Limited to 'on' or 'off'"), |
| AP_INIT_FLAG("Anonymous_LogEmail", ap_set_flag_slot, |
| (void *)APR_XtOffsetOf(anon_auth_config_rec, anon_auth_logemail), |
| OR_AUTHCFG, "Limited to 'on' or 'off'"), |
| AP_INIT_FLAG("Anonymous_Authoritative", ap_set_flag_slot, |
| (void *)APR_XtOffsetOf(anon_auth_config_rec, anon_auth_authoritative), |
| OR_AUTHCFG, "Limited to 'on' or 'off'"), |
| {NULL} |
| }; |
| |
| module AP_MODULE_DECLARE_DATA auth_anon_module; |
| |
| static int anon_authenticate_basic_user(request_rec *r) |
| { |
| anon_auth_config_rec *conf = ap_get_module_config(r->per_dir_config, |
| &auth_anon_module); |
| const char *sent_pw; |
| int res = DECLINED; |
| |
| if ((res = ap_get_basic_auth_pw(r, &sent_pw))) |
| return res; |
| |
| /* Ignore if we are not configured */ |
| if (!conf->anon_auth_passwords) |
| return DECLINED; |
| |
| /* Do we allow an empty userID and/or is it the magic one |
| */ |
| |
| if ((!(r->user[0])) && (conf->anon_auth_nouserid)) { |
| res = OK; |
| } |
| else { |
| anon_auth *p = conf->anon_auth_passwords; |
| res = DECLINED; |
| while ((res == DECLINED) && (p != NULL)) { |
| if (!(strcasecmp(r->user, p->password))) |
| res = OK; |
| p = p->next; |
| } |
| } |
| if ( |
| /* username is OK */ |
| (res == OK) |
| /* password been filled out ? */ |
| && ((!conf->anon_auth_mustemail) || strlen(sent_pw)) |
| /* does the password look like an email address ? */ |
| && ((!conf->anon_auth_verifyemail) |
| || ((strpbrk("@", sent_pw) != NULL) |
| && (strpbrk(".", sent_pw) != NULL)))) { |
| if (conf->anon_auth_logemail && ap_is_initial_req(r)) { |
| ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, APR_SUCCESS, r, |
| "Anonymous: Passwd <%s> Accepted", |
| sent_pw ? sent_pw : "\'none\'"); |
| } |
| return OK; |
| } |
| else { |
| if (conf->anon_auth_authoritative) { |
| ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, APR_SUCCESS, r, |
| "Anonymous: Authoritative, Passwd <%s> not accepted", |
| sent_pw ? sent_pw : "\'none\'"); |
| return HTTP_UNAUTHORIZED; |
| } |
| /* Drop out the bottom to return DECLINED */ |
| } |
| |
| return DECLINED; |
| } |
| |
| static int check_anon_access(request_rec *r) |
| { |
| #ifdef NOTYET |
| conn_rec *c = r->connection; |
| anon_auth_config_rec *conf = ap_get_module_config(r->per_dir_config, |
| &auth_anon_module); |
| |
| if (!conf->anon_auth) |
| return DECLINED; |
| |
| if (strcasecmp(r->connection->user, conf->anon_auth)) |
| return DECLINED; |
| |
| return OK; |
| #endif |
| return DECLINED; |
| } |
| |
| static void register_hooks(apr_pool_t *p) |
| { |
| ap_hook_check_user_id(anon_authenticate_basic_user,NULL,NULL,APR_HOOK_MIDDLE); |
| ap_hook_auth_checker(check_anon_access,NULL,NULL,APR_HOOK_MIDDLE); |
| } |
| |
| module AP_MODULE_DECLARE_DATA auth_anon_module = |
| { |
| STANDARD20_MODULE_STUFF, |
| create_anon_auth_dir_config,/* dir config creater */ |
| NULL, /* dir merger ensure strictness */ |
| NULL, /* server config */ |
| NULL, /* merge server config */ |
| anon_auth_cmds, /* command apr_table_t */ |
| register_hooks /* register hooks */ |
| }; |