Stash old software updater code, will refactor into separate utility.

2 files changed, 0 insertions, 514 deletions

diff --git a/updater/SoftwareUpdater.cpp b/updater/SoftwareUpdater.cpp
deleted file mode 100644
index e3789bcb..00000000
--- a/updater/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
diff --git a/updater/SoftwareUpdater.hpp b/updater/SoftwareUpdater.hpp
deleted file mode 100644
index 9beaa8ad..00000000
--- a/updater/SoftwareUpdater.hpp
+++ /dev/null
@@ -1,186 +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/
- */
-
-#ifndef ZT_SOFTWAREUPDATER_HPP
-#define ZT_SOFTWAREUPDATER_HPP
-
-#include <stdint.h>
-
-#include <string>
-
-#include "../node/Constants.hpp"
-#include "../node/Mutex.hpp"
-#include "../node/Address.hpp"
-
-#include "HttpClient.hpp"
-
-/**
- * Delay between fetches of the root topology update URL
- *
- * 86400000 = check once every 24 hours (this doesn't change often)
- */
-#define ZT_UPDATE_ROOT_TOPOLOGY_CHECK_INTERVAL 86400000
-
-/**
- * Minimum interval between attempts to do a software update
- */
-#define ZT_UPDATE_MIN_INTERVAL 120000
-
-/**
- * Maximum interval between checks for new versions
- */
-#define ZT_UPDATE_MAX_INTERVAL 7200000
-
-/**
- * Software update HTTP timeout in seconds
- */
-#define ZT_UPDATE_HTTP_TIMEOUT 120
-
-namespace ZeroTier {
-
-/**
- * Software updater
- */
-class SoftwareUpdater
-{
-public:
-	SoftwareUpdater();
-	~SoftwareUpdater();
-
-	/**
-	 * Remove old updates in updates.d
-	 */
-	void cleanOldUpdates();
-
-	/**
-	 * Called on each version message from a peer
-	 *
-	 * If a peer has a newer version, that causes an update to be started.
-	 *
-	 * @param vmaj Peer's major version
-	 * @param vmin Peer's minor version
-	 * @param rev Peer's revision
-	 */
-	void sawRemoteVersion(unsigned int vmaj,unsigned int vmin,unsigned int rev);
-
-	/**
-	 * Check for updates now regardless of last check time or version
-	 *
-	 * This only starts a check if one is not in progress. Otherwise it does
-	 * nothing.
-	 */
-	void checkNow();
-
-	/**
-	 * Check for updates now if it's been longer than ZT_UPDATE_MAX_INTERVAL
-	 *
-	 * This is called periodically from the main loop.
-	 */
-	inline void checkIfMaxIntervalExceeded(uint64_t now)
-	{
-		if ((now - _lastUpdateAttempt) >= ZT_UPDATE_MAX_INTERVAL)
-			checkNow();
-	}
-
-	/**
-	 * Pack three-component version into a 64-bit integer
-	 *
-	 * @param vmaj Major version (0..65535)
-	 * @param vmin Minor version (0..65535)
-	 * @param rev Revision (0..65535)
-	 * @return Version packed into an easily comparable 64-bit integer
-	 */
-	static inline uint64_t packVersion(unsigned int vmaj,unsigned int vmin,unsigned int rev)
-		throw()
-	{
-		return ( ((uint64_t)(vmaj & 0xffff) << 32) | ((uint64_t)(vmin & 0xffff) << 16) | (uint64_t)(rev & 0xffff) );
-	}
-
-	/**
-	 * Parse NFO data from .nfo file on software update site
-	 *
-	 * The first argument is the NFO data, and all the remaining arguments are
-	 * result parameters to be filled with results. If an error is returned the
-	 * results in the parameters should be considered undefined.
-	 *
-	 * @param nfo NFO data
-	 * @param vMajor Result: major version
-	 * @param vMinor Result: minor version
-	 * @param vRevision Result: revision number
-	 * @param signedBy Result: signing identity
-	 * @param signature Result: Ed25519 signature data
-	 * @param url Result: URL of update binary
-	 * @return NULL on success or error message on failure
-	 */
-	static const char *parseNfo(
-		const char *nfoText,
-		unsigned int &vMajor,
-		unsigned int &vMinor,
-		unsigned int &vRevision,
-		Address &signedBy,
-		std::string &signature,
-		std::string &url);
-
-	/**
-	 * Validate an update once downloaded
-	 *
-	 * This obtains the identity corresponding to the address from the compiled-in
-	 * list of valid signing identities.
-	 *
-	 * @param data Update data
-	 * @param len Length of update data
-	 * @param signedBy Signing authority address
-	 * @param signature Signing authority signature
-	 * @return True on validation success, false if rejected
-	 */
-	static bool validateUpdate(
-		const void *data,
-		unsigned int len,
-		const Address &signedBy,
-		const std::string &signature);
-
-private:
-	static void _cbHandleGetLatestVersionInfo(void *arg,int code,const std::string &url,const std::string &body);
-	static void _cbHandleGetLatestVersionBinary(void *arg,int code,const std::string &url,const std::string &body);
-
-	HttpClient httpClient;
-	const uint64_t _myVersion;
-	volatile uint64_t _lastUpdateAttempt;
-	volatile enum {
-		UPDATE_STATUS_IDLE,
-		UPDATE_STATUS_GETTING_NFO,
-		UPDATE_STATUS_GETTING_FILE
-	} _status;
-	volatile bool _die;
-	Address _signedBy;
-	std::string _signature;
-	Mutex _lock;
-};
-
-} // namespace ZeroTier
-
-#endif