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Diffstat (limited to 'attic/SoftwareUpdater.cpp')
| -rw-r--r-- | attic/SoftwareUpdater.cpp | 328 |
1 files changed, 0 insertions, 328 deletions
diff --git a/attic/SoftwareUpdater.cpp b/attic/SoftwareUpdater.cpp deleted file mode 100644 index e3789bcb..00000000 --- a/attic/SoftwareUpdater.cpp +++ /dev/null @@ -1,328 +0,0 @@ -/* - * ZeroTier One - Network Virtualization Everywhere - * Copyright (C) 2011-2015 ZeroTier, Inc. - * - * This program is free software: you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation, either version 3 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see <http://www.gnu.org/licenses/>. - * - * -- - * - * ZeroTier may be used and distributed under the terms of the GPLv3, which - * are available at: http://www.gnu.org/licenses/gpl-3.0.html - * - * If you would like to embed ZeroTier into a commercial application or - * redistribute it in a modified binary form, please contact ZeroTier Networks - * LLC. Start here: http://www.zerotier.com/ - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> - -#include <stdexcept> - -#include "../version.h" - -#include "Constants.hpp" -#include "SoftwareUpdater.hpp" -#include "Dictionary.hpp" -#include "C25519.hpp" -#include "Identity.hpp" -#include "Logger.hpp" -#include "RuntimeEnvironment.hpp" -#include "Thread.hpp" -#include "Node.hpp" -#include "Utils.hpp" -#include "HttpClient.hpp" - -#ifdef __UNIX_LIKE__ -#include <unistd.h> -#include <fcntl.h> -#include <sys/types.h> -#include <sys/stat.h> -#endif - -namespace ZeroTier { - -static inline std::map< Address,Identity > _mkUpdateAuth() -{ - std::map< Address,Identity > ua; - - { // 0001 - Identity id("e9bc3707b5:0:c4cef17bde99eadf9748c4fd11b9b06dc5cd8eb429227811d2c336e6b96a8d329e8abd0a4f45e47fe1bcebf878c004c822d952ff77fc2833af4c74e65985c435"); - ua[id.address()] = id; - } - { // 0002 - Identity id("56520eaf93:0:7d858b47988b34399a9a31136de07b46104d7edb4a98fa1d6da3e583d3a33e48be531532b886f0b12cd16794a66ab9220749ec5112cbe96296b18fe0cc79ca05"); - ua[id.address()] = id; - } - { // 0003 - Identity id("7c195de2e0:0:9f659071c960f9b0f0b96f9f9ecdaa27c7295feed9c79b7db6eedcc11feb705e6dd85c70fa21655204d24c897865b99eb946b753a2bbcf2be5f5e006ae618c54"); - ua[id.address()] = id; - } - { // 0004 - Identity id("415f4cfde7:0:54118e87777b0ea5d922c10b337c4f4bd1db7141845bd54004b3255551a6e356ba6b9e1e85357dbfafc45630b8faa2ebf992f31479e9005f0472685f2d8cbd6e"); - ua[id.address()] = id; - } - - return ua; -} - -static inline const char *_mkUpdateUrl() -{ -#if defined(__LINUX__) && ( defined(__i386__) || defined(__x86_64) || defined(__x86_64__) || defined(__amd64) || defined(__i386) ) - if (sizeof(void *) == 8) - return "http://download.zerotier.com/ZeroTierOneInstaller-linux-x64-LATEST.nfo"; - else return "http://download.zerotier.com/ZeroTierOneInstaller-linux-x86-LATEST.nfo"; -#define GOT_UPDATE_URL -#endif - -#ifdef __APPLE__ - return "http://download.zerotier.com/ZeroTierOneInstaller-mac-combined-LATEST.nfo"; -#define GOT_UPDATE_URL -#endif - -#ifdef __WINDOWS__ - return "http://download.zerotier.com/ZeroTierOneInstaller-windows-intel-LATEST.nfo"; -#define GOT_UPDATE_URL -#endif - -#ifndef GOT_UPDATE_URL - return ""; -#endif -} - -SoftwareUpdater::SoftwareUpdater(const RuntimeEnvironment *renv) : - RR(renv), - _myVersion(packVersion(ZEROTIER_ONE_VERSION_MAJOR,ZEROTIER_ONE_VERSION_MINOR,ZEROTIER_ONE_VERSION_REVISION)), - _lastUpdateAttempt(0), - _status(UPDATE_STATUS_IDLE), - _die(false), - _lock() -{ -} - -SoftwareUpdater::~SoftwareUpdater() -{ - _die = true; - for(;;) { - _lock.lock(); - bool ip = (_status != UPDATE_STATUS_IDLE); - _lock.unlock(); - if (ip) - Thread::sleep(500); - else break; - } -} - -void SoftwareUpdater::cleanOldUpdates() -{ - std::string updatesDir(RR->homePath + ZT_PATH_SEPARATOR_S + "updates.d"); - std::map<std::string,bool> dl(Utils::listDirectory(updatesDir.c_str())); - for(std::map<std::string,bool>::iterator i(dl.begin());i!=dl.end();++i) { - if (!i->second) - Utils::rm((updatesDir + ZT_PATH_SEPARATOR_S + i->first).c_str()); - } -} - -void SoftwareUpdater::sawRemoteVersion(unsigned int vmaj,unsigned int vmin,unsigned int rev) -{ - const uint64_t tmp = packVersion(vmaj,vmin,rev); - if (tmp > _myVersion) { - Mutex::Lock _l(_lock); - if ((_status == UPDATE_STATUS_IDLE)&&(!_die)&&(ZT_DEFAULTS.updateLatestNfoURL.length())) { - const uint64_t now = Utils::now(); - if ((now - _lastUpdateAttempt) >= ZT_UPDATE_MIN_INTERVAL) { - _lastUpdateAttempt = now; - _status = UPDATE_STATUS_GETTING_NFO; - RR->http->GET(ZT_DEFAULTS.updateLatestNfoURL,HttpClient::NO_HEADERS,ZT_UPDATE_HTTP_TIMEOUT,&_cbHandleGetLatestVersionInfo,this); - } - } - } -} - -void SoftwareUpdater::checkNow() -{ - Mutex::Lock _l(_lock); - if (_status == UPDATE_STATUS_IDLE) { - _lastUpdateAttempt = Utils::now(); - _status = UPDATE_STATUS_GETTING_NFO; - RR->http->GET(ZT_DEFAULTS.updateLatestNfoURL,HttpClient::NO_HEADERS,ZT_UPDATE_HTTP_TIMEOUT,&_cbHandleGetLatestVersionInfo,this); - } -} - -const char *SoftwareUpdater::parseNfo( - const char *nfoText, - unsigned int &vMajor, - unsigned int &vMinor, - unsigned int &vRevision, - Address &signedBy, - std::string &signature, - std::string &url) -{ - try { - Dictionary nfo(nfoText); - - vMajor = Utils::strToUInt(nfo.get("vMajor").c_str()); - vMinor = Utils::strToUInt(nfo.get("vMinor").c_str()); - vRevision = Utils::strToUInt(nfo.get("vRevision").c_str()); - signedBy = nfo.get("signedBy"); - signature = Utils::unhex(nfo.get("ed25519")); - url = nfo.get("url"); - - if (signature.length() != ZT_C25519_SIGNATURE_LEN) - return "bad ed25519 signature, invalid length"; - if ((url.length() <= 7)||(url.substr(0,7) != "http://")) - return "invalid URL, must begin with http://"; - - return (const char *)0; - } catch ( ... ) { - return "invalid NFO file format or one or more required fields missing"; - } -} - -bool SoftwareUpdater::validateUpdate( - const void *data, - unsigned int len, - const Address &signedBy, - const std::string &signature) -{ - std::map< Address,Identity >::const_iterator updateAuthority = ZT_DEFAULTS.updateAuthorities.find(signedBy); - if (updateAuthority == ZT_DEFAULTS.updateAuthorities.end()) - return false; - return updateAuthority->second.verify(data,len,signature.data(),(unsigned int)signature.length()); -} - -void SoftwareUpdater::_cbHandleGetLatestVersionInfo(void *arg,int code,const std::string &url,const std::string &body) -{ - SoftwareUpdater *upd = (SoftwareUpdater *)arg; - const RuntimeEnvironment *RR = (const RuntimeEnvironment *)upd->RR; - Mutex::Lock _l(upd->_lock); - - if ((upd->_die)||(upd->_status != UPDATE_STATUS_GETTING_NFO)) { - upd->_status = UPDATE_STATUS_IDLE; - return; - } - - if (code != 200) { - LOG("software update check failed: server responded with code %d",code); - upd->_status = UPDATE_STATUS_IDLE; - return; - } - - try { - unsigned int vMajor = 0,vMinor = 0,vRevision = 0; - Address signedBy; - std::string signature,url; - - const char *err = parseNfo(body.c_str(),vMajor,vMinor,vRevision,signedBy,signature,url); - - if (err) { - LOG("software update check aborted: .nfo file parse error: %s",err); - upd->_status = UPDATE_STATUS_IDLE; - return; - } - - if (!ZT_DEFAULTS.updateAuthorities.count(signedBy)) { - LOG("software update check aborted: .nfo file specifies unknown signing authority"); - upd->_status = UPDATE_STATUS_IDLE; - return; - } - -#ifndef ZT_ALWAYS_UPDATE /* for testing */ - if (packVersion(vMajor,vMinor,vRevision) <= upd->_myVersion) { - TRACE("software update check complete: version on update site is not newer than my version, no update necessary"); - upd->_status = UPDATE_STATUS_IDLE; - return; - } -#endif - - upd->_status = UPDATE_STATUS_GETTING_FILE; - upd->_signedBy = signedBy; - upd->_signature = signature; - - RR->http->GET(url,HttpClient::NO_HEADERS,ZT_UPDATE_HTTP_TIMEOUT,&_cbHandleGetLatestVersionBinary,arg); - } catch ( ... ) { - LOG("software update check failed: .nfo file invalid or missing field(s)"); - upd->_status = UPDATE_STATUS_IDLE; - } -} - -void SoftwareUpdater::_cbHandleGetLatestVersionBinary(void *arg,int code,const std::string &url,const std::string &body) -{ - SoftwareUpdater *upd = (SoftwareUpdater *)arg; - const RuntimeEnvironment *RR = (const RuntimeEnvironment *)upd->RR; - Mutex::Lock _l(upd->_lock); - - if (!validateUpdate(body.data(),(unsigned int)body.length(),upd->_signedBy,upd->_signature)) { - LOG("software update failed: update fetched from '%s' failed signature check (image size: %u)",url.c_str(),(unsigned int)body.length()); - upd->_status = UPDATE_STATUS_IDLE; - return; - } - - size_t lastSlash = url.rfind('/'); - if (lastSlash == std::string::npos) { // sanity check, shouldn't happen - LOG("software update failed: invalid URL"); - upd->_status = UPDATE_STATUS_IDLE; - return; - } - std::string updatesDir(RR->homePath + ZT_PATH_SEPARATOR_S + "updates.d"); - std::string updateFilename(url.substr(lastSlash + 1)); - if ((updateFilename.length() < 3)||(updateFilename.find("..") != std::string::npos)) { - LOG("software update failed: invalid URL: filename contains invalid characters"); - upd->_status = UPDATE_STATUS_IDLE; - return; - } - for(std::string::iterator c(updateFilename.begin());c!=updateFilename.end();++c) { - // Only allow a list of whitelisted characters to make up the filename to prevent any - // path shenanigans, esp on Windows where / is not the path separator. - if (!strchr("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ-_.0123456789",*c)) { - LOG("software update failed: invalid URL: filename contains invalid characters"); - upd->_status = UPDATE_STATUS_IDLE; - return; - } - } - std::string updatePath(updatesDir + ZT_PATH_SEPARATOR_S + updateFilename); -#ifdef __WINDOWS__ - CreateDirectoryA(updatesDir.c_str(),NULL); -#else - mkdir(updatesDir.c_str(),0755); -#endif - - FILE *upf = fopen(updatePath.c_str(),"wb"); - if (!upf) { - LOG("software update failed: unable to open %s for writing",updatePath.c_str()); - upd->_status = UPDATE_STATUS_IDLE; - return; - } - if (fwrite(body.data(),body.length(),1,upf) != 1) { - LOG("software update failed: unable to write to %s",updatePath.c_str()); - upd->_status = UPDATE_STATUS_IDLE; - fclose(upf); - Utils::rm(updatePath); - return; - } - fclose(upf); - -#ifdef __UNIX_LIKE__ - ::chmod(updatePath.c_str(),0755); -#endif - - // We exit with this reason code and the path as the text. It is the - // caller's responsibility (main.c) to pick this up and do the right - // thing. - upd->_status = UPDATE_STATUS_IDLE; - RR->node->terminate(Node::NODE_RESTART_FOR_UPGRADE,updatePath.c_str()); -} - -} // namespace ZeroTier |