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- /* ====================================================================
- * Copyright (c) 1995-1999 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. 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 names without prior written
- * permission of the Apache Group.
- *
- * 6. 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/>.
- *
- */
-
- /*
- * 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-user-id [magic-user-id]...
- *
- * Anonymous_MustGiveEmail [ on | off ] default = off
- * 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 off.
- *
- * 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 "httpd.h"
- #include "http_config.h"
- #include "http_core.h"
- #include "http_log.h"
- #include "http_protocol.h"
- #include "http_request.h"
-
- typedef struct auth_anon {
- char *password;
- struct auth_anon *next;
- } auth_anon;
-
- typedef struct {
-
- auth_anon *auth_anon_passwords;
- int auth_anon_nouserid;
- int auth_anon_logemail;
- int auth_anon_verifyemail;
- int auth_anon_mustemail;
- int auth_anon_authoritative;
-
- } anon_auth_config_rec;
-
- static void *create_anon_auth_dir_config(pool *p, char *d)
- {
- anon_auth_config_rec *sec = (anon_auth_config_rec *)
- ap_pcalloc(p, sizeof(anon_auth_config_rec));
-
- if (!sec)
- return NULL; /* no memory... */
-
- /* just to illustrate the defaults really. */
- sec->auth_anon_passwords = NULL;
-
- sec->auth_anon_nouserid = 0;
- sec->auth_anon_logemail = 1;
- sec->auth_anon_verifyemail = 0;
- sec->auth_anon_mustemail = 1;
- sec->auth_anon_authoritative = 0;
- return sec;
- }
-
- static const char *anon_set_passwd_flag(cmd_parms *cmd,
- anon_auth_config_rec * sec, int arg)
- {
- sec->auth_anon_mustemail = arg;
- return NULL;
- }
-
- static const char *anon_set_userid_flag(cmd_parms *cmd,
- anon_auth_config_rec * sec, int arg)
- {
- sec->auth_anon_nouserid = arg;
- return NULL;
- }
- static const char *anon_set_logemail_flag(cmd_parms *cmd,
- anon_auth_config_rec * sec, int arg)
- {
- sec->auth_anon_logemail = arg;
- return NULL;
- }
- static const char *anon_set_verifyemail_flag(cmd_parms *cmd,
- anon_auth_config_rec * sec, int arg)
- {
- sec->auth_anon_verifyemail = arg;
- return NULL;
- }
- static const char *anon_set_authoritative_flag(cmd_parms *cmd,
- anon_auth_config_rec * sec, int arg)
- {
- sec->auth_anon_authoritative = arg;
- return NULL;
- }
-
- static const char *anon_set_string_slots(cmd_parms *cmd,
- anon_auth_config_rec * sec, char *arg)
- {
-
- auth_anon *first;
-
- if (!(*arg))
- return "Anonymous string cannot be empty, use Anonymous_NoUserId instead";
-
- /* squeeze in a record */
- first = sec->auth_anon_passwords;
-
- if (
- (!(sec->auth_anon_passwords = (auth_anon *) ap_palloc(cmd->pool, sizeof(auth_anon)))) ||
- (!(sec->auth_anon_passwords->password = arg))
- )
- return "Failed to claim memory for an anonymous password...";
-
- /* and repair the next */
- sec->auth_anon_passwords->next = first;
-
- return NULL;
- }
-
- static const command_rec anon_auth_cmds[] =
- {
- {"Anonymous", anon_set_string_slots, NULL, OR_AUTHCFG, ITERATE,
- "a space-separated list of user IDs"},
- {"Anonymous_MustGiveEmail", anon_set_passwd_flag, NULL, OR_AUTHCFG, FLAG,
- "Limited to 'on' or 'off'"},
- {"Anonymous_NoUserId", anon_set_userid_flag, NULL, OR_AUTHCFG, FLAG,
- "Limited to 'on' or 'off'"},
- {"Anonymous_VerifyEmail", anon_set_verifyemail_flag, NULL, OR_AUTHCFG, FLAG,
- "Limited to 'on' or 'off'"},
- {"Anonymous_LogEmail", anon_set_logemail_flag, NULL, OR_AUTHCFG, FLAG,
- "Limited to 'on' or 'off'"},
- {"Anonymous_Authoritative", anon_set_authoritative_flag, NULL, OR_AUTHCFG, FLAG,
- "Limited to 'on' or 'off'"},
-
- {NULL}
- };
-
- module MODULE_VAR_EXPORT anon_auth_module;
-
- static int anon_authenticate_basic_user(request_rec *r)
- {
- anon_auth_config_rec *sec =
- (anon_auth_config_rec *) ap_get_module_config(r->per_dir_config,
- &anon_auth_module);
- conn_rec *c = r->connection;
- 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 (!sec->auth_anon_passwords)
- return DECLINED;
-
- /* Do we allow an empty userID and/or is it the magic one
- */
-
- if ((!(c->user[0])) && (sec->auth_anon_nouserid)) {
- res = OK;
- }
- else {
- auth_anon *p = sec->auth_anon_passwords;
- res = DECLINED;
- while ((res == DECLINED) && (p != NULL)) {
- if (!(strcasecmp(c->user, p->password)))
- res = OK;
- p = p->next;
- }
- }
- if (
- /* username is OK */
- (res == OK)
- /* password been filled out ? */
- && ((!sec->auth_anon_mustemail) || strlen(sent_pw))
- /* does the password look like an email address ? */
- && ((!sec->auth_anon_verifyemail)
- || ((strpbrk("@", sent_pw) != NULL)
- && (strpbrk(".", sent_pw) != NULL)))) {
- if (sec->auth_anon_logemail && ap_is_initial_req(r)) {
- ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_INFO, r,
- "Anonymous: Passwd <%s> Accepted",
- sent_pw ? sent_pw : "\'none\'");
- }
- return OK;
- }
- else {
- if (sec->auth_anon_authoritative) {
- ap_log_rerror(APLOG_MARK, APLOG_NOERRNO|APLOG_ERR, r,
- "Anonymous: Authoritative, Passwd <%s> not accepted",
- sent_pw ? sent_pw : "\'none\'");
- return AUTH_REQUIRED;
- }
- /* 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 *sec =
- (anon_auth_config_rec *) ap_get_module_config(r->per_dir_config,
- &anon_auth_module);
-
- if (!sec->auth_anon)
- return DECLINED;
-
- if (strcasecmp(r->connection->user, sec->auth_anon))
- return DECLINED;
-
- return OK;
- #endif
- return DECLINED;
- }
-
-
- module MODULE_VAR_EXPORT anon_auth_module =
- {
- STANDARD_MODULE_STUFF,
- NULL, /* initializer */
- create_anon_auth_dir_config, /* dir config creater */
- NULL, /* dir merger ensure strictness */
- NULL, /* server config */
- NULL, /* merge server config */
- anon_auth_cmds, /* command table */
- NULL, /* handlers */
- NULL, /* filename translation */
- anon_authenticate_basic_user, /* check_user_id */
- check_anon_access, /* check auth */
- NULL, /* check access */
- NULL, /* type_checker */
- NULL, /* fixups */
- NULL, /* logger */
- NULL, /* header parser */
- NULL, /* child_init */
- NULL, /* child_exit */
- NULL /* post read-request */
- };
-