2005-01-20 23:22:22 +00:00
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// Berkeley Open Infrastructure for Network Computing
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// http://boinc.berkeley.edu
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// Copyright (C) 2005 University of California
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2004-01-30 22:19:19 +00:00
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//
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2005-01-20 23:22:22 +00:00
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// This is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation;
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// either version 2.1 of the License, or (at your option) any later version.
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//
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// This software is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU Lesser General Public License for more details.
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//
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// To view the GNU Lesser General Public License visit
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// http://www.gnu.org/copyleft/lesser.html
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// or write to the Free Software Foundation, Inc.,
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// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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2004-01-30 22:19:19 +00:00
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2005-07-31 23:33:12 +00:00
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// The plumbing of GUI RPC, server side
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// (but not the actual RPCs)
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2004-02-28 19:11:40 +00:00
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#ifdef _WIN32
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2004-06-16 23:16:08 +00:00
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#include "boinc_win.h"
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2006-03-29 21:41:35 +00:00
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#else
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2005-11-21 18:34:44 +00:00
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#include "config.h"
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2004-03-04 11:41:43 +00:00
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#include <stdio.h>
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2005-12-16 03:45:01 +00:00
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#ifdef HAVE_UNISTD_H
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2004-01-21 07:07:16 +00:00
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#include <unistd.h>
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2006-07-18 23:21:09 +00:00
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#include <cerrno>
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2005-12-16 03:45:01 +00:00
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#endif
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#ifdef HAVE_SYS_SOCKET_H
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2004-01-21 07:07:16 +00:00
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#include <sys/socket.h>
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2005-12-16 03:45:01 +00:00
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#endif
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2005-10-17 20:21:57 +00:00
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#include <sys/stat.h>
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2004-01-21 07:07:16 +00:00
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#include <sys/un.h>
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2004-01-21 22:54:35 +00:00
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#include <vector>
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#include <string.h>
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2004-04-15 20:42:15 +00:00
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#include <netinet/in.h>
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#include <netinet/tcp.h>
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2004-07-10 07:27:00 +00:00
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#include <arpa/inet.h>
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2006-05-06 05:18:02 +00:00
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#include <fcntl.h>
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2004-03-04 11:41:43 +00:00
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#endif
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2004-01-21 07:07:16 +00:00
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2007-02-21 16:26:51 +00:00
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#include "str_util.h"
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2004-04-07 06:51:42 +00:00
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#include "util.h"
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2004-05-05 21:15:34 +00:00
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#include "error_numbers.h"
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2005-03-07 06:09:04 +00:00
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#include "network.h"
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#include "filesys.h"
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2005-10-27 20:03:51 +00:00
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#include "md5_file.h"
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2004-04-08 08:15:23 +00:00
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2004-07-10 07:27:00 +00:00
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#include "file_names.h"
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2004-04-08 08:15:23 +00:00
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#include "client_msgs.h"
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2004-01-21 07:07:16 +00:00
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#include "client_state.h"
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2004-06-30 18:17:21 +00:00
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using std::string;
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using std::vector;
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2004-01-21 07:07:16 +00:00
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GUI_RPC_CONN::GUI_RPC_CONN(int s) {
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sock = s;
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2005-03-07 06:09:04 +00:00
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auth_needed = false;
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2006-12-14 20:44:39 +00:00
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au_ss_state = AU_SS_INIT;
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au_mgr_state = AU_MGR_INIT;
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2004-01-21 07:07:16 +00:00
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}
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GUI_RPC_CONN::~GUI_RPC_CONN() {
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2004-09-05 18:46:19 +00:00
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boinc_close_socket(sock);
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2004-01-21 07:07:16 +00:00
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}
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2005-07-23 08:10:39 +00:00
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GUI_RPC_CONN_SET::GUI_RPC_CONN_SET() {
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lsock = -1;
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2006-09-08 22:28:10 +00:00
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time_of_last_rpc_needing_network = 0;
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2005-12-24 06:32:07 +00:00
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}
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2006-09-08 22:28:10 +00:00
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bool GUI_RPC_CONN_SET::recent_rpc_needs_network(double interval) {
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if (!time_of_last_rpc_needing_network) return false;
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if (gstate.now < time_of_last_rpc_needing_network + interval) return true;
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2005-12-24 06:32:07 +00:00
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return false;
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2005-07-23 08:10:39 +00:00
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}
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2005-03-07 06:09:04 +00:00
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int GUI_RPC_CONN_SET::get_password() {
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2005-10-15 05:38:47 +00:00
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FILE* f;
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2005-10-27 20:03:51 +00:00
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int retval;
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2005-03-07 06:09:04 +00:00
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strcpy(password, "");
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if (boinc_file_exists(GUI_RPC_PASSWD_FILE)) {
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2005-10-15 05:38:47 +00:00
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f = fopen(GUI_RPC_PASSWD_FILE, "r");
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2005-03-07 06:09:04 +00:00
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if (f) {
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fgets(password, 256, f);
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strip_whitespace(password);
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fclose(f);
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}
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2005-10-15 05:38:47 +00:00
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} else {
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// if no password file, make a random password
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//
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2005-10-27 20:03:51 +00:00
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retval = make_random_string(password);
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if (retval) {
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gstate.host_info.make_random_string("guirpc", password);
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}
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2005-10-15 05:38:47 +00:00
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f = fopen(GUI_RPC_PASSWD_FILE, "w");
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if (f) {
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fputs(password, f);
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fclose(f);
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#ifndef _WIN32
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// if someone can read the password,
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// they can cause code to execute as this user.
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// So better protect it.
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//
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2006-08-01 12:36:19 +00:00
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if (g_use_sandbox) {
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// Allow group access so authorized administrator can modify it
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chmod(GUI_RPC_PASSWD_FILE, S_IRUSR|S_IWUSR | S_IRGRP | S_IWGRP);
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} else {
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chmod(GUI_RPC_PASSWD_FILE, S_IRUSR|S_IWUSR);
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}
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2005-10-15 05:38:47 +00:00
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#endif
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}
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2005-03-07 06:09:04 +00:00
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}
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return 0;
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}
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2004-07-10 07:27:00 +00:00
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int GUI_RPC_CONN_SET::get_allowed_hosts() {
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2005-04-10 00:16:20 +00:00
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int ipaddr, retval;
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char buf[256], msg[256];
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2006-10-20 15:56:22 +00:00
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allowed_remote_ip_addresses.clear();
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2004-07-10 07:27:00 +00:00
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// open file remote_hosts.cfg and read in the
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// allowed host list and resolve them to an ip address
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//
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FILE* f = fopen(REMOTEHOST_FILE_NAME, "r");
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2006-10-20 15:56:22 +00:00
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if (f) {
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2006-06-22 19:40:30 +00:00
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if (log_flags.guirpc_debug) {
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msg_printf(0, MSG_INFO,
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2006-10-20 15:56:22 +00:00
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"[guirpc_debug] found allowed hosts list"
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2006-06-22 19:40:30 +00:00
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);
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}
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2004-07-10 07:27:00 +00:00
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// read in each line, if it is not a comment
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2005-02-16 23:17:43 +00:00
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// then resolve the address and add to our allowed list
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2006-10-20 15:56:22 +00:00
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//
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2004-07-10 07:27:00 +00:00
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memset(buf,0,sizeof(buf));
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2006-10-20 15:56:22 +00:00
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while (fgets(buf, 256, f)) {
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2004-07-10 07:27:00 +00:00
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strip_whitespace(buf);
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if (!(buf[0] =='#' || buf[0] == ';') && strlen(buf) > 0 ) {
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2005-04-10 00:16:20 +00:00
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retval = resolve_hostname(buf, ipaddr, msg);
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2007-02-02 20:14:18 +00:00
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if (retval) {
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msg_printf(0, MSG_USER_ERROR, msg);
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} else {
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2004-07-10 07:27:00 +00:00
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allowed_remote_ip_addresses.push_back((int)ntohl(ipaddr));
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2004-09-05 18:46:19 +00:00
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}
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2004-07-10 07:27:00 +00:00
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}
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}
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fclose(f);
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}
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return 0;
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}
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2004-01-21 07:07:16 +00:00
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int GUI_RPC_CONN_SET::insert(GUI_RPC_CONN* p) {
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gui_rpcs.push_back(p);
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return 0;
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}
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2004-05-05 21:15:34 +00:00
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int GUI_RPC_CONN_SET::init() {
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2004-09-05 18:46:19 +00:00
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sockaddr_in addr;
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2004-01-21 07:07:16 +00:00
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int retval;
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2004-07-10 07:27:00 +00:00
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get_allowed_hosts();
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2005-03-07 06:09:04 +00:00
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get_password();
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2004-07-10 07:27:00 +00:00
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2006-05-06 05:18:02 +00:00
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retval = boinc_socket(lsock);
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if (retval) {
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2007-01-25 23:39:06 +00:00
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msg_printf(NULL, MSG_INTERNAL_ERROR,
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2006-01-17 22:48:09 +00:00
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"GUI RPC failed to create socket: %d", lsock
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2004-06-12 04:45:36 +00:00
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);
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2006-05-06 05:18:02 +00:00
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return retval;
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2004-01-21 07:07:16 +00:00
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}
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2004-04-15 20:42:15 +00:00
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2005-12-02 22:29:35 +00:00
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memset(&addr, 0, sizeof(addr));
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2004-04-15 20:42:15 +00:00
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addr.sin_family = AF_INET;
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2005-11-26 00:59:45 +00:00
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2005-12-13 08:04:57 +00:00
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if (gstate.cmdline_gui_rpc_port) {
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addr.sin_port = htons(gstate.cmdline_gui_rpc_port);
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2005-11-26 00:59:45 +00:00
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} else {
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2005-12-20 07:35:50 +00:00
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addr.sin_port = htons(GUI_RPC_PORT);
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2005-11-26 00:59:45 +00:00
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}
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2005-04-16 00:04:35 +00:00
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#ifdef __APPLE__
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addr.sin_addr.s_addr = htonl(INADDR_ANY);
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#else
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2005-04-11 20:30:24 +00:00
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if (gstate.allow_remote_gui_rpc || allowed_remote_ip_addresses.size() > 0) {
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addr.sin_addr.s_addr = htonl(INADDR_ANY);
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2006-06-23 22:25:08 +00:00
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if (log_flags.guirpc_debug) {
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2006-09-07 20:39:25 +00:00
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msg_printf(NULL, MSG_INFO, "[guirpc_debug] Remote control allowed");
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2006-06-23 22:25:08 +00:00
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}
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2005-04-11 20:30:24 +00:00
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} else {
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2005-04-19 19:50:58 +00:00
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addr.sin_addr.s_addr = inet_addr("127.0.0.1");
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2006-06-23 22:25:08 +00:00
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if (log_flags.guirpc_debug) {
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2006-09-07 20:39:25 +00:00
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msg_printf(NULL, MSG_INFO, "[guirpc_debug] Local control only allowed");
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2006-06-23 22:25:08 +00:00
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}
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2005-04-11 20:30:24 +00:00
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}
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2005-04-16 00:04:35 +00:00
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#endif
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2004-04-15 20:42:15 +00:00
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2004-06-12 04:45:36 +00:00
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int one = 1;
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setsockopt(lsock, SOL_SOCKET, SO_REUSEADDR, (char*)&one, 4);
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2005-05-06 01:54:00 +00:00
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retval = bind(lsock, (const sockaddr*)(&addr), (boinc_socklen_t)sizeof(addr));
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2004-01-21 07:07:16 +00:00
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if (retval) {
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2006-07-18 23:21:09 +00:00
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#ifndef _WIN32
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retval = errno; // Display the real error code
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#endif
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2007-01-25 23:39:06 +00:00
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msg_printf(NULL, MSG_INTERNAL_ERROR, "GUI RPC bind failed: %d", retval);
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2005-12-20 07:35:50 +00:00
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boinc_close_socket(lsock);
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lsock = -1;
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return ERR_BIND;
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2004-01-21 07:07:16 +00:00
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}
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2006-06-23 22:25:08 +00:00
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if (log_flags.guirpc_debug) {
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2006-09-07 20:39:25 +00:00
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msg_printf(NULL, MSG_INFO, "[guirpc_debug] Listening on port %d", htons(addr.sin_port));
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2006-06-23 22:25:08 +00:00
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}
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2005-11-26 00:59:45 +00:00
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2004-01-21 07:07:16 +00:00
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retval = listen(lsock, 999);
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if (retval) {
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2007-01-25 23:39:06 +00:00
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msg_printf(NULL, MSG_INTERNAL_ERROR, "GUI RPC listen failed: %d", retval);
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2004-08-16 09:41:02 +00:00
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boinc_close_socket(lsock);
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lsock = -1;
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2004-05-05 21:15:34 +00:00
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return ERR_LISTEN;
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2004-01-21 07:07:16 +00:00
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}
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2004-05-12 21:21:09 +00:00
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return 0;
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2004-01-21 07:07:16 +00:00
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}
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2005-02-10 00:35:00 +00:00
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static void show_connect_error(in_addr ia) {
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static double last_time=0;
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static int count=0;
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if (last_time == 0) {
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2005-06-07 19:22:50 +00:00
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last_time = gstate.now;
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2005-02-10 00:35:00 +00:00
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count = 1;
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} else {
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2005-06-07 19:22:50 +00:00
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if (gstate.now - last_time < 600) {
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2005-02-10 00:35:00 +00:00
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count++;
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return;
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}
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2005-06-07 19:22:50 +00:00
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last_time = gstate.now;
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2005-02-10 00:35:00 +00:00
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}
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msg_printf(
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2007-01-25 23:39:06 +00:00
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NULL, MSG_USER_ERROR,
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2006-01-17 22:48:09 +00:00
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"GUI RPC request from non-allowed address %s",
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2005-02-10 00:35:00 +00:00
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inet_ntoa(ia)
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);
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if (count > 1) {
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msg_printf(
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2007-01-25 23:39:06 +00:00
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NULL, MSG_USER_ERROR,
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2006-01-17 22:48:09 +00:00
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"%d connections rejected in last 10 minutes",
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2005-02-10 00:35:00 +00:00
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count
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);
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}
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count = 0;
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}
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2005-08-16 21:31:27 +00:00
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void GUI_RPC_CONN_SET::get_fdset(FDSET_GROUP& fg, FDSET_GROUP& all) {
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2005-08-16 20:48:21 +00:00
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unsigned int i;
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GUI_RPC_CONN* gr;
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if (lsock < 0) return;
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for (i=0; i<gui_rpcs.size(); i++) {
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gr = gui_rpcs[i];
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2005-08-16 21:31:27 +00:00
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int s = gr->sock;
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FD_SET(s, &fg.read_fds);
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FD_SET(s, &fg.exc_fds);
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if (s > fg.max_fd) fg.max_fd = s;
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FD_SET(s, &all.read_fds);
|
|
|
|
FD_SET(s, &all.exc_fds);
|
|
|
|
if (s > all.max_fd) all.max_fd = s;
|
2005-08-16 20:48:21 +00:00
|
|
|
}
|
|
|
|
FD_SET(lsock, &fg.read_fds);
|
2005-08-16 21:31:27 +00:00
|
|
|
if (lsock > fg.max_fd) fg.max_fd = lsock;
|
|
|
|
FD_SET(lsock, &all.read_fds);
|
|
|
|
if (lsock > all.max_fd) all.max_fd = lsock;
|
2005-08-16 20:48:21 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void GUI_RPC_CONN_SET::got_select(FDSET_GROUP& fg) {
|
2004-08-16 09:41:02 +00:00
|
|
|
int sock, retval;
|
|
|
|
vector<GUI_RPC_CONN*>::iterator iter;
|
|
|
|
GUI_RPC_CONN* gr;
|
2005-04-09 23:19:38 +00:00
|
|
|
bool is_local = false;
|
2004-08-16 09:41:02 +00:00
|
|
|
|
2005-08-16 20:48:21 +00:00
|
|
|
if (lsock < 0) return;
|
2004-06-09 18:17:25 +00:00
|
|
|
|
2005-08-16 20:48:21 +00:00
|
|
|
if (FD_ISSET(lsock, &fg.read_fds)) {
|
2004-08-16 09:41:02 +00:00
|
|
|
struct sockaddr_in addr;
|
2004-01-21 07:07:16 +00:00
|
|
|
|
2005-10-27 18:58:43 +00:00
|
|
|
// For unknown reasons, the FD_ISSET() above succeeds
|
|
|
|
// after a SIGTERM, SIGHUP, SIGINT or SIGQUIT is received,
|
|
|
|
// even if there is no data available on the socket.
|
|
|
|
// This causes the accept() call to block, preventing the main
|
|
|
|
// loop from processing the exit request.
|
|
|
|
// This is a workaround for that problem.
|
|
|
|
//
|
|
|
|
if (gstate.requested_exit) {
|
|
|
|
return;
|
|
|
|
}
|
2005-10-26 00:58:33 +00:00
|
|
|
|
2005-05-06 01:54:00 +00:00
|
|
|
boinc_socklen_t addr_len = sizeof(addr);
|
2006-01-16 19:54:44 +00:00
|
|
|
sock = accept(lsock, (struct sockaddr*)&addr, (boinc_socklen_t*)&addr_len);
|
2005-12-02 22:29:35 +00:00
|
|
|
if (sock == -1) {
|
|
|
|
return;
|
|
|
|
}
|
2004-07-15 20:05:04 +00:00
|
|
|
|
2006-05-06 05:18:02 +00:00
|
|
|
// apps shouldn't inherit the socket!
|
|
|
|
//
|
|
|
|
#ifndef _WIN32
|
|
|
|
fcntl(sock, F_SETFD, FD_CLOEXEC);
|
|
|
|
#endif
|
|
|
|
|
2004-08-16 09:41:02 +00:00
|
|
|
int peer_ip = (int) ntohl(addr.sin_addr.s_addr);
|
2004-07-15 20:05:04 +00:00
|
|
|
|
2004-08-16 09:41:02 +00:00
|
|
|
bool allowed = false;
|
2004-07-10 07:27:00 +00:00
|
|
|
|
2006-10-20 15:56:22 +00:00
|
|
|
// check list of allowed remote hosts.
|
|
|
|
//
|
|
|
|
if (allowed_remote_ip_addresses.size()) {
|
|
|
|
// reread it because IP addresses might have changed
|
|
|
|
//
|
|
|
|
get_allowed_hosts();
|
|
|
|
|
|
|
|
vector<int>::iterator remote_iter = allowed_remote_ip_addresses.begin();
|
|
|
|
while (remote_iter != allowed_remote_ip_addresses.end() ) {
|
|
|
|
int remote_host = *remote_iter;
|
|
|
|
if (peer_ip == remote_host) {
|
|
|
|
allowed = true;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
remote_iter++;
|
|
|
|
}
|
2004-08-16 09:41:02 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
// accept the connection if:
|
|
|
|
// 1) allow_remote_gui_rpc is set or
|
|
|
|
// 2) client host is included in "remote_hosts" file or
|
|
|
|
// 3) client is on localhost
|
|
|
|
//
|
2005-04-09 23:19:38 +00:00
|
|
|
if (peer_ip == 0x7f000001) {
|
|
|
|
allowed = true;
|
|
|
|
is_local = true;
|
|
|
|
}
|
|
|
|
|
2005-04-11 20:30:24 +00:00
|
|
|
if (!(gstate.allow_remote_gui_rpc) && !(allowed)) {
|
2004-08-16 09:41:02 +00:00
|
|
|
in_addr ia;
|
|
|
|
ia.s_addr = htonl(peer_ip);
|
2005-02-10 00:35:00 +00:00
|
|
|
show_connect_error(ia);
|
2004-08-16 09:41:02 +00:00
|
|
|
boinc_close_socket(sock);
|
|
|
|
} else {
|
2005-02-16 23:17:43 +00:00
|
|
|
gr = new GUI_RPC_CONN(sock);
|
2005-03-07 06:09:04 +00:00
|
|
|
if (strlen(password)) {
|
|
|
|
gr->auth_needed = true;
|
|
|
|
}
|
2005-04-09 23:19:38 +00:00
|
|
|
gr->is_local = is_local;
|
2004-08-16 09:41:02 +00:00
|
|
|
insert(gr);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
iter = gui_rpcs.begin();
|
|
|
|
while (iter != gui_rpcs.end()) {
|
|
|
|
gr = *iter;
|
2005-08-16 20:48:21 +00:00
|
|
|
if (FD_ISSET(gr->sock, &fg.exc_fds)) {
|
2004-08-16 09:41:02 +00:00
|
|
|
delete gr;
|
2006-01-10 20:40:16 +00:00
|
|
|
iter = gui_rpcs.erase(iter);
|
|
|
|
continue;
|
2004-01-21 07:07:16 +00:00
|
|
|
}
|
2006-01-10 20:40:16 +00:00
|
|
|
iter++;
|
2004-08-16 09:41:02 +00:00
|
|
|
}
|
|
|
|
iter = gui_rpcs.begin();
|
|
|
|
while (iter != gui_rpcs.end()) {
|
|
|
|
gr = *iter;
|
2005-08-16 20:48:21 +00:00
|
|
|
if (FD_ISSET(gr->sock, &fg.read_fds)) {
|
2004-08-16 09:41:02 +00:00
|
|
|
retval = gr->handle_rpc();
|
|
|
|
if (retval) {
|
2004-01-21 07:07:16 +00:00
|
|
|
delete gr;
|
2006-01-10 20:40:16 +00:00
|
|
|
iter = gui_rpcs.erase(iter);
|
2004-08-16 09:41:02 +00:00
|
|
|
continue;
|
2004-01-21 07:07:16 +00:00
|
|
|
}
|
|
|
|
}
|
2004-08-16 09:41:02 +00:00
|
|
|
iter++;
|
2004-01-21 07:07:16 +00:00
|
|
|
}
|
|
|
|
}
|
2004-12-08 00:40:19 +00:00
|
|
|
|
2006-07-17 16:38:53 +00:00
|
|
|
void GUI_RPC_CONN_SET::close() {
|
|
|
|
if (log_flags.guirpc_debug) {
|
2006-09-07 20:39:25 +00:00
|
|
|
msg_printf(NULL, MSG_INFO, "[guirpc_debug] closing GUI RPC socket %d\n", lsock);
|
2006-07-17 16:38:53 +00:00
|
|
|
}
|
|
|
|
if (lsock >= 0) {
|
|
|
|
boinc_close_socket(lsock);
|
|
|
|
lsock = -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2006-12-14 20:44:39 +00:00
|
|
|
// this is called when we're ready to auto-update;
|
|
|
|
// set flags to send quit messages to screensaver and local manager
|
|
|
|
//
|
|
|
|
void GUI_RPC_CONN_SET::send_quits() {
|
|
|
|
for (unsigned int i=0; i<gui_rpcs.size(); i++) {
|
|
|
|
GUI_RPC_CONN* gr = gui_rpcs[i];
|
|
|
|
if (gr->au_ss_state == AU_SS_GOT) {
|
|
|
|
gr->au_ss_state = AU_SS_QUIT_REQ;
|
|
|
|
}
|
|
|
|
if (gr->au_mgr_state == AU_MGR_GOT && gr->is_local) {
|
|
|
|
gr->au_mgr_state = AU_MGR_QUIT_REQ;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// check whether the quit messages have actually been sent
|
|
|
|
//
|
|
|
|
bool GUI_RPC_CONN_SET::quits_sent() {
|
|
|
|
for (unsigned int i=0; i<gui_rpcs.size(); i++) {
|
|
|
|
GUI_RPC_CONN* gr = gui_rpcs[i];
|
|
|
|
if (gr->au_ss_state == AU_SS_QUIT_REQ) return false;
|
|
|
|
if (gr->au_mgr_state == AU_MGR_QUIT_REQ) return false;
|
|
|
|
}
|
|
|
|
return true;
|
|
|
|
}
|
|
|
|
|
2005-01-02 18:29:53 +00:00
|
|
|
const char *BOINC_RCSID_88dd75dd85 = "$Id$";
|