tools/src/dtnsend.cpp

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/*
 * dtnsend.cpp
 *
 *  Created on: 15.10.2009
 *      Author: morgenro
 */

#include "config.h"
#include <ibrdtn/api/Client.h>
#include <ibrdtn/api/FileBundle.h>
#include <ibrdtn/api/BLOBBundle.h>
#include <ibrcommon/net/tcpclient.h>
#include <ibrcommon/thread/Mutex.h>
#include <ibrcommon/thread/MutexLock.h>
#include <ibrcommon/data/BLOB.h>
#include <ibrcommon/Logger.h>

#include <iostream>

void print_help()
{
        cout << "-- dtnsend (IBR-DTN) --" << endl;
        cout << "Syntax: dtnsend [options] <dst> <filename>"  << endl;
        cout << " <dst>         set the destination eid (e.g. dtn://node/filetransfer)" << endl;
        cout << " <filename>    the file to transfer" << endl;
        cout << "* optional parameters *" << endl;
        cout << " -h|--help     display this text" << endl;
        cout << " --src <name>  set the source application name (e.g. filetransfer)" << endl;
        cout << " -p <0..2>     set the bundle priority (0 = low, 1 = normal, 2 = high)" << endl;
        cout << " --lifetime <seconds>" << endl;
        cout << "               set the lifetime of outgoing bundles; default: 3600" << endl;
        cout << " -U <socket>   use UNIX domain sockets" << endl;
        cout << " -n <copies>   create <copies> bundle copies" << endl;
        cout << " --encrypt     request encryption on the bundle layer" << endl;
        cout << " --sign        request signature on the bundle layer" << endl;
        cout << " --custody     request custody transfer of the bundle" << endl;
        cout << " --compression request compression of the payload" << endl;

}

int main(int argc, char *argv[])
{
        bool error = false;
        string file_destination = "dtn://local/filetransfer";
        string file_source = "filetransfer";
        unsigned int lifetime = 3600;
        bool use_stdin = false;
        std::string filename;
        ibrcommon::File unixdomain;
        int priority = 1;
        int copies = 1;
        bool bundle_encryption = false;
        bool bundle_signed = false;
        bool bundle_custody = false;
        bool bundle_compression = false;

//      ibrcommon::Logger::setVerbosity(99);
//      ibrcommon::Logger::addStream(std::cout, ibrcommon::Logger::LOGGER_ALL, ibrcommon::Logger::LOG_DATETIME | ibrcommon::Logger::LOG_LEVEL);

        std::list<std::string> arglist;

        for (int i = 0; i < argc; i++)
        {
                if (argv[i][0] == '-')
                {
                        std::string arg = argv[i];

                        // print help if requested
                        if (arg == "-h" || arg == "--help")
                        {
                                print_help();
                                return 0;
                        }
                        else if (arg == "--encrypt")
                        {
                                bundle_encryption = true;
                        }
                        else if (arg == "--sign")
                        {
                                bundle_signed = true;
                        }
                        else if (arg == "--custody")
                        {
                                bundle_custody = true;
                        }
                        else if (arg == "--compression")
                        {
                                bundle_compression = true;
                        }
                        else if (arg == "--src" && argc > i)
                        {
                                if (++i > argc)
                                {
                                        std::cout << "argument missing!" << std::endl;
                                        return -1;
                                }

                                file_source = argv[i];
                        }
                        else if (arg == "--lifetime" && argc > i)
                        {
                                if (++i > argc)
                                {
                                        std::cout << "argument missing!" << std::endl;
                                        return -1;
                                }

                                stringstream data; data << argv[i];
                                data >> lifetime;
                        }
                        else if (arg == "-p" && argc > i)
                        {
                                if (++i > argc)
                                {
                                        std::cout << "argument missing!" << std::endl;
                                        return -1;
                                }
                                stringstream data; data << argv[i];
                                data >> priority;
                        }
                        else if (arg == "-U" && argc > i)
                        {
                                if (++i > argc)
                                {
                                        std::cout << "argument missing!" << std::endl;
                                        return -1;
                                }

                                unixdomain = ibrcommon::File(argv[i]);
                        }
                        else if (arg == "-n" && argc > i)
                        {
                                if (++i > argc)
                                {
                                        std::cout << "argument missing!" << std::endl;
                                        return -1;
                                }

                                stringstream data; data << argv[i];
                                data >> copies;

                                if( copies < 1 ) {
                                        std::cout << "invalid number of bundle copies!" << std::endl;
                                        return -1;
                                }
                        } 
                        else
                        {
                                std::cout << "invalid argument " << arg << std::endl;
                                return -1;
                        }
                }
                else
                {
                        arglist.push_back(argv[i]);
                }
        }

        if (arglist.size() <= 1)
        {
                print_help();
                return -1;
        } else if (arglist.size() == 2)
        {
                std::list<std::string>::iterator iter = arglist.begin(); iter++;

                // the first parameter is the destination
                file_destination = (*iter);

                use_stdin = true;
        }
        else if (arglist.size() > 2)
        {
                std::list<std::string>::iterator iter = arglist.begin(); iter++;

                // the first parameter is the destination
                file_destination = (*iter); iter++;

                // the second parameter is the filename
                filename = (*iter);
        }

        try {
                // Create a stream to the server using TCP.
                ibrcommon::tcpclient conn;

                // check if the unixdomain socket exists
                if (unixdomain.exists())
                {
                        // connect to the unix domain socket
                        conn.open(unixdomain);
                }
                else
                {
                        // connect to the standard local api port
                        conn.open("127.0.0.1", 4550);

                        // enable nodelay option
                        conn.enableNoDelay();
                }

                try {
                        // Initiate a client for synchronous receiving
                        dtn::api::Client client(file_source, conn, dtn::api::Client::MODE_SENDONLY);

                        // Connect to the server. Actually, this function initiate the
                        // stream protocol by starting the thread and sending the contact header.
                        client.connect();

                        // target address
                        EID addr = EID(file_destination);

                        try {
                                if (use_stdin)
                                {
                                        cout << "Transfer stdin to " << addr.getString() << endl;

                                        // create an empty BLOB
                                        ibrcommon::BLOB::Reference ref = ibrcommon::TmpFileBLOB::create();

                                        // copy cin to a BLOB
                                        (*ref.iostream()) << cin.rdbuf();

                                        for(int u=0; u<copies; u++){
                                                dtn::api::BLOBBundle b(file_destination, ref);

                                                // enable encryption if requested
                                                if (bundle_encryption) b.requestEncryption();

                                                // enable signature if requested
                                                if (bundle_signed) b.requestSigned();

                                                // enable custody transfer if requested
                                                if (bundle_custody) b.requestCustodyTransfer();

                                                // enable compression
                                                if (bundle_compression) b.requestCompression();

                                                // set the lifetime
                                                b.setLifetime(lifetime);

                                                // set the bundles priority
                                                b.setPriority(dtn::api::Bundle::BUNDLE_PRIORITY(priority));

                                                // send the bundle
                                                client << b;

                                                if (copies > 1)
                                                {
                                                        std::cout << "sent copy #" << (u+1) << std::endl;
                                                }
                                        }
                                }
                                else
                                {
                                        cout << "Transfer file \"" << filename << "\" to " << addr.getString() << endl;
                                        
                                        for(int u=0; u<copies; u++){
                                                // create a bundle from the file
                                                dtn::api::FileBundle b(file_destination, filename);

                                                // enable encryption if requested
                                                if (bundle_encryption) b.requestEncryption();

                                                // enable signature if requested
                                                if (bundle_signed) b.requestSigned();

                                                // enable custody transfer if requested
                                                if (bundle_custody) b.requestCustodyTransfer();

                                                // enable compression
                                                if (bundle_compression) b.requestCompression();

                                                // set the lifetime
                                                b.setLifetime(lifetime);

                                                // set the bundles priority
                                                b.setPriority(dtn::api::Bundle::BUNDLE_PRIORITY(priority));

                                                // send the bundle
                                                client << b;

                                                if (copies > 1)
                                                {
                                                        std::cout << "sent copy #" << (u+1) << std::endl;
                                                }
                                        }
                                }

                                // flush the buffers
                                client.flush();
                        } catch (const ibrcommon::IOException &ex) {
                                std::cerr << "Error while sending bundle." << std::endl;
                                std::cerr << "\t" << ex.what() << std::endl;
                                error = true;
                        }

                        // Shutdown the client connection.
                        client.close();

                        // print out the transmitted bytes
                        std::cout << client.lastack << " bytes sent" << std::endl;

                } catch (const ibrcommon::IOException &ex) {
                        cout << "Error: " << ex.what() << endl;
                        error = true;
                } catch (const dtn::api::ConnectionException&) {
                        // connection already closed, the daemon was faster
                }

                // close the tcpstream
                conn.close();
        } catch (const std::exception &ex) {
                cout << "Error: " << ex.what() << endl;
                error = true;
        }

        if (error) return -1;

        return 0;
}