mirror of https://github.com/vitalif/grive2
339 lines
8.6 KiB
C++
339 lines
8.6 KiB
C++
/*
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grive: an GPL program to sync a local directory with Google Drive
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Copyright (C) 2012 Wan Wai Ho
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation version 2
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of the License.
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This program 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. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#include "util/Config.hh"
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#include "util/ProgressBar.hh"
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#include "base/Drive.hh"
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#include "drive2/Syncer2.hh"
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#include "http/CurlAgent.hh"
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#include "protocol/AuthAgent.hh"
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#include "protocol/OAuth2.hh"
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#include "json/Val.hh"
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#include "bfd/Backtrace.hh"
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#include "util/Exception.hh"
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#include "util/log/Log.hh"
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#include "util/log/CompositeLog.hh"
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#include "util/log/DefaultLog.hh"
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// boost header
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#include <boost/exception/all.hpp>
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#include <boost/program_options.hpp>
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// initializing libgcrypt, must be done in executable
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#include <gcrypt.h>
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#include <cassert>
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#include <cstdlib>
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#include <iostream>
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#include <unistd.h>
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const std::string default_id = "22314510474.apps.googleusercontent.com" ;
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const std::string default_secret = "bl4ufi89h-9MkFlypcI7R785" ;
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using namespace gr ;
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namespace po = boost::program_options;
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// libgcrypt insist this to be done in application, not library
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void InitGCrypt()
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{
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if ( !gcry_check_version(GCRYPT_VERSION) )
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throw std::runtime_error( "libgcrypt version mismatch" ) ;
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// disable secure memory
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gcry_control(GCRYCTL_DISABLE_SECMEM, 0);
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// tell Libgcrypt that initialization has completed
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gcry_control(GCRYCTL_INITIALIZATION_FINISHED, 0);
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}
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void InitLog( const po::variables_map& vm )
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{
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std::unique_ptr<log::CompositeLog> comp_log( new log::CompositeLog ) ;
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std::unique_ptr<LogBase> def_log( new log::DefaultLog );
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LogBase* console_log = comp_log->Add( def_log ) ;
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if ( vm.count( "log" ) )
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{
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std::unique_ptr<LogBase> file_log( new log::DefaultLog( vm["log"].as<std::string>() ) ) ;
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file_log->Enable( log::debug ) ;
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file_log->Enable( log::verbose ) ;
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file_log->Enable( log::info ) ;
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file_log->Enable( log::warning ) ;
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file_log->Enable( log::error ) ;
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file_log->Enable( log::critical ) ;
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// log grive version to log file
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file_log->Log( log::Fmt("grive version " VERSION " " __DATE__ " " __TIME__), log::verbose ) ;
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file_log->Log( log::Fmt("current time: %1%") % DateTime::Now(), log::verbose ) ;
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comp_log->Add( file_log ) ;
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}
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if ( vm.count( "verbose" ) )
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{
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console_log->Enable( log::verbose ) ;
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}
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if ( vm.count( "debug" ) )
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{
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console_log->Enable( log::verbose ) ;
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console_log->Enable( log::debug ) ;
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}
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LogBase::Inst( comp_log.release() ) ;
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}
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int Main( int argc, char **argv )
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{
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InitGCrypt() ;
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// construct the program options
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po::options_description desc( "Grive options" );
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desc.add_options()
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( "help,h", "Produce help message" )
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( "version,v", "Display Grive version" )
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( "auth,a", "Request authorization token" )
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( "id,i", po::value<std::string>(), "Authentication ID (only used with '-a')")
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( "secret,e", po::value<std::string>(), "Authentication secret (only used with '-a')")
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( "path,p", po::value<std::string>(), "Path to working copy root")
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( "dir,s", po::value<std::string>(), "Single subdirectory to sync")
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( "verbose,V", "Verbose mode. Enable more messages than normal.")
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( "log-http", po::value<std::string>(), "Log all HTTP responses in this file for debugging.")
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( "new-rev", "Create new revisions in server for updated files.")
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( "debug,d", "Enable debug level messages. Implies -v.")
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( "log,l", po::value<std::string>(), "Set log output filename." )
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( "force,f", "Force grive to always download a file from Google Drive "
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"instead of uploading it." )
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( "upload-only,u", "Do not download anything from Google Drive, only upload local changes" )
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( "no-remote-new,n", "Download only files that are changed in Google Drive and already exist locally" )
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( "dry-run", "Only detect which files need to be uploaded/downloaded, "
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"without actually performing them." )
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( "upload-speed,U", po::value<unsigned>(), "Limit upload speed in kbytes per second" )
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( "download-speed,D", po::value<unsigned>(), "Limit download speed in kbytes per second" )
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( "progress-bar,P", "Enable progress bar for upload/download of files")
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;
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po::variables_map vm;
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try
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{
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po::store( po::parse_command_line( argc, argv, desc ), vm );
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}
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catch( po::error &e )
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{
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std::cerr << "Options are incorrect. Use -h for help\n";
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return -1;
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}
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po::notify( vm );
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// simple commands that doesn't require log or config
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if ( vm.count("help") )
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{
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std::cout << desc << std::endl ;
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return 0 ;
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}
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else if ( vm.count( "version" ) )
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{
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std::cout
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<< "grive version " << VERSION << ' ' << __DATE__ << ' ' << __TIME__ << std::endl ;
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return 0 ;
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}
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// initialize logging
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InitLog( vm ) ;
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Config config( vm ) ;
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Log( "config file name %1%", config.Filename(), log::verbose );
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std::unique_ptr<http::Agent> http( new http::CurlAgent );
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if ( vm.count( "log-http" ) )
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http->SetLog( new http::ResponseLog( vm["log-http"].as<std::string>(), ".txt" ) );
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std::unique_ptr<ProgressBar> pb;
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if ( vm.count( "progress-bar" ) )
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{
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pb.reset( new ProgressBar() );
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http->SetProgressReporter( pb.get() );
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}
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std::string id;
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std::string secret;
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if ( vm.count( "auth" ) )
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{
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// logic: commandline -> saved in .grive -> default
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if( vm.count( "id" ) )
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{
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id = vm["id"].as<std::string>();
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}
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else
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{
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try
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{
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id = config.Get("client_id").Str() ;
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}
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catch ( Exception& e )
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{
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id = default_id;
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}
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}
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if( vm.count( "secret" ) )
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{
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secret = vm["secret"].as<std::string>();
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}
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else
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{
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try
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{
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secret = config.Get("client_secret").Str() ;
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}
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catch ( Exception& e )
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{
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secret = default_secret;
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}
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}
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OAuth2 token( http.get(), id, secret ) ;
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std::cout
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<< "-----------------------\n"
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<< "Please go to this URL and get an authentication code:\n\n"
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<< token.MakeAuthURL()
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<< std::endl ;
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std::cout
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<< "\n-----------------------\n"
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<< "Please input the authentication code here: " << std::endl ;
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std::string code ;
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std::cin >> code ;
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token.Auth( code ) ;
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// save to config
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config.Set( "client_secret", Val( secret ) ) ;
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config.Set( "client_id", Val( id ) ) ;
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config.Set( "refresh_token", Val( token.RefreshToken() ) ) ;
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config.Save() ;
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}
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else
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{
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if( vm.count( "id" ) || vm.count( "secret" ))
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{
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Log(
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"'--id' and '--secret' are only valid when grive is run with the \"-a\" option to (re)authenticate",
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log::critical ) ;
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return -1;
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}
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}
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// This is not included in the below 'refresh-token' try
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// as a fallback for cases where 'grive -a' was run with an older version
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// before we saved the id+secret
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try
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{
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id = config.Get("client_id").Str() ;
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}
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catch ( Exception& e )
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{
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id = default_id;
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}
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try
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{
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secret = config.Get("client_secret").Str() ;
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}
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catch ( Exception& e )
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{
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secret = default_secret;
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}
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std::string refresh_token ;
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try
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{
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refresh_token = config.Get("refresh_token").Str() ;
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}
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catch ( Exception& e )
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{
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Log(
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"Please run grive with the \"-a\" option if this is the "
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"first time you're accessing your Google Drive!",
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log::critical ) ;
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return -1;
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}
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OAuth2 token( http.get(), refresh_token, id, secret ) ;
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AuthAgent agent( token, http.get() ) ;
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v2::Syncer2 syncer( &agent );
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if ( vm.count( "upload-speed" ) > 0 )
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agent.SetUploadSpeed( vm["upload-speed"].as<unsigned>() * 1000 );
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if ( vm.count( "download-speed" ) > 0 )
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agent.SetDownloadSpeed( vm["download-speed"].as<unsigned>() * 1000 );
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Drive drive( &syncer, config.GetAll() ) ;
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drive.DetectChanges() ;
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if ( vm.count( "dry-run" ) == 0 )
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{
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// The progress bar should just be enabled when actual file transfers take place
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if ( pb )
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pb->setShowProgressBar( true ) ;
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drive.Update() ;
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if ( pb )
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pb->setShowProgressBar( false ) ;
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drive.SaveState() ;
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}
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else
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drive.DryRun() ;
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config.Save() ;
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Log( "Finished!", log::info ) ;
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return 0 ;
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}
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int main( int argc, char **argv )
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{
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try
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{
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return Main( argc, argv ) ;
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}
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catch ( Exception& e )
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{
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Log( "exception: %1%", boost::diagnostic_information(e), log::critical ) ;
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}
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catch ( std::exception& e )
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{
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Log( "exception: %1%", e.what(), log::critical ) ;
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}
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catch ( ... )
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{
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Log( "unexpected exception", log::critical ) ;
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}
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return -1 ;
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}
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