C++ sendFile函数代码示例

void connectToServer(char * serveraddress, char * port, char* transType, char * infile){
    // SSL init 
	SSL_library_init(); 
	// ============== SSL init //
	
	// establish connection
	BIO* bio = establishSSLConnection(serveraddress, port);
	// ================ STEP 1 FINISHED ESTABLISHED AN SSL CONNECTION
 	// Verify client
 	performRSAChallenge(serveraddress, port, bio);
 	// ================ 
 	int transaction = verifyTransaction(serveraddress, port, transType, bio);
 	if(transaction == 1) //send
 	{
 		sendFile(serveraddress, port, infile, bio);
 	}
 	if(transaction == 2) //recieve
 	{
 		recieveFile(serveraddress, port, infile, bio);
 	}
 	if(transaction < 0) //error
 	{
 		printf("Something went wrong with determining transaction type.");
 	}
 	if(transaction < 0) //error
 	{
 		printf("Something went wrong with determining transaction type.");
 	}
	printf("SSL Connection closed.\n");
	BIO_free(bio);
}

void selectFile(char *filename)
{
	int filesize;
	char path[1024];
	FILE *file;
	if(filename == NULL)
		return;

	sprintf(path, "/ESIEACloud/%s/%s", actualSession->login, filename);

	fprintf(stderr, "path: %s\n", path);

	file = fopen(path, "r");
	if(file == NULL)
		fprintf(stderr, "Ah bah le fichier ne s'ouvre pas\n");
	fseek(file, 0L, SEEK_END);
	filesize = ftell(file);
	fseek(file, 0L, SEEK_SET);

	if(file == NULL)
		sprintf(actualSession->header, "Content-Type: text/html\r\n\r\nFile Not Found");
	else
		sprintf(actualSession->header, "Content-Description: File Transfer\r\n"
						"Content-Type: application/octet-stream\r\n"
						"Content-Disposition: attachment; filename=%s\r\n"
						"Content-Transfer-Encoding: binary\r\n"
						"Expires: 0\r\n"
						"Cache-Control: must-revalidate, post-check=0, pre-check=0\r\n"
						"Pragma: public\r\nContent-Length: %d\r\n"
						"\r\n", filename, filesize
						);

	sendHeader();
	sendFile(file);
}

OneToOneRoom::OneToOneRoom(avc::ChatClient* client, const std::wstring& remote)
{
	remote_ = remote;
	client_ = client;
	setupUi(this);
	userInfoWidget->show();
	rightLayout->addWidget(new QSizeGrip(this), 0, Qt::AlignBottom | Qt::AlignRight);
	textBrowser->setFrameStyle(QFrame::NoFrame);
	textEdit->setFrameStyle(QFrame::NoFrame);

	QFile file(":/Resources/scrollbar.qss");
	file.open(QFile::ReadOnly | QFile::Text);
	QTextStream in(&file);
	QString content = in.readAll();
	textBrowser->verticalScrollBar()->setStyleSheet(content);
	textEdit->verticalScrollBar()->setStyleSheet(content);

	addPicBtn->setIcon(QIcon(":/Resources/image.png"));
	addVoiceBtn->setIcon(QIcon(":/Resources/voice.png"));
	sendFileBtn->setIcon(QIcon(":/Resources/file.png"));
	titleBar->setTitle(QString("%[email protected] chat room").arg(QString::fromStdWString(client_->getEmail())));
	textEdit->setFocus();
	titleBar->setTitle(QString("%1->%2").arg(QString::fromStdWString(client_->getEmail()), QString::fromStdWString(remote_)));


	new QShortcut(QKeySequence(Qt::CTRL + Qt::Key_T), this, SLOT(test()));
	connect(pushButton, SIGNAL(clicked()), this, SLOT(onSendClicked()));
	connect(addPicBtn, SIGNAL(clicked()), this, SLOT(onAddPicClicked()));
	connect(sendFileBtn, SIGNAL(clicked()), this, SLOT(sendFile()));
	//connect(stackedWidget, SIGNAL(currentChanged(int)), this, SLOT(stackedWidgetCurrentChanged(int)));
}

void put(){
	strcpy(filename, command.arguments);
	fprintf(stdout, "put() : %s\n", filename);
	
	// check if the file exists //
	FILE *file_ptr = fopen(filename, "r");
	if(!file_ptr){
		fprintf(stderr, "The specified does not exist\n");
		return;
	}
	
	// Send command //
	send_pack(PUT, command.arguments, sock);
	fprintf(stdout, "%s\n", packet_str);

	/* send port number for data connection to server */
	send_data_port();
	
	// make socket and accept server's Data Connection (active)//
	makeDataConnection();
	fprintf(stderr, "put() : data connection accepted\n");
	
	// send file //
	sendFile(file_ptr);

	fprintf(stdout, "put() : complete file sent\n");
	fflush(stdout);
	
	//close the file
	fclose(file_ptr);
	
	// close the data connection //
	close(request->serverSocket);
}

MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    curDate_ = QDate::currentDate();
    ui->btCurDate->setText("Today\n"+curDate_.toString());
    selDate_ = curDate_;
    ui->lSelDate->setText(selDate_.toString());

    fillYearTable(*ui->twYear);
    fillMonthTable(*ui->twMonth);
    fillDayTable(*ui->twDay, curDate_.daysInMonth());

    fillTaskField();
    standartStuffForAllTables(*ui->twTaskField);

    fillHangedTaskField();
    standartStuffForAllTables(*ui->twHangedTaskField);

    timer_ = new QTimer(this);
    connect(timer_, SIGNAL(timeout()), this, SLOT(sendFile()));
    timer_->start(PERIOD);
}

void MainWindow::begin()
{
    //receiveList("Starting File Send.");
    resetProgress();
    int ret = QMessageBox::No;
    if((ui->lcdWorkNumberX->value()!=0)||(ui->lcdWorkNumberY->value()!=0)||(ui->lcdWorkNumberZ->value()!=0))
    {
        QMessageBox msgBox;
        msgBox.setText("Wish to \"zero position\" before beginning?");
        msgBox.setStandardButtons(QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel);
        msgBox.setDefaultButton(QMessageBox::Yes);
        ret = msgBox.exec();
        if(ret ==QMessageBox::Yes)
            setHome();
    }
    if(ret!=QMessageBox::Cancel)
    {
        ui->tabAxisVisualizer->setEnabled(false);
        ui->groupBoxManualGCode->setEnabled(false);
        ui->Begin->setEnabled(false);
        ui->Stop->setEnabled(true);
        ui->progressFileSend->setEnabled(true);
        ui->outputRuntime->setEnabled(true);
        ui->labelRuntime->setEnabled(true);
        ui->openFile->setEnabled(false);
        ui->btnGRBL->setEnabled(false);
        ui->btnUnlockGrbl->setEnabled(false);
        ui->btnSetHome->setEnabled(false);
        ui->btnGoHomeSafe->setEnabled(false);
        emit sendFile(ui->filePath->text());
    }
}

void ClientWindow::on_sendFileButton_clicked() {
	// Request a file to the user and emit a signal with the path to this file
	emit sendFile(QFileDialog::getOpenFileName(0, "Send a file", QString(), "All (*)"));

	// Focus the message editing box
	message->setFocus();
}

void staticHandler(struct headers *request, int sockfd){

    char filePath[MAX_URI_SIZE] = DOC_ROOT;
    char *uri = getHeader(request, "URI:");
    strcat(filePath, uri);

    struct responseHeaders headers = {200, "OK", LOCATION, "text/html", "UTF-8", 0, false};         //defaults

    FILE *f = NULL;

    if(access(filePath, F_OK) != 0){
        headers.code = 404;
        headers.codeName = "Not Found";
        strcpy(filePath, "./not_found");
    }else if(access(filePath, R_OK) != 0){
        headers.code = 403;
        headers.codeName = "Forbidden";
        strcpy(filePath, "./forbidden");
    }else if(strcmp(uri, "/") == 0){
        f = popen("/bin/ls", "r");
        FILE *p = popen("ls | wc -c", "r");  //another pipe for finding size
        fscanf(p, "%d", &headers.fileSize);
        pclose(p);
    }
    if(f == NULL){
        f = fopen(filePath, "r");
        fseek(f, 0, SEEK_END);
        headers.fileSize = ftell(f);
        fseek(f, 0, SEEK_SET);
    }

    sendHeaders(headers, sockfd);
    sendFile(f, sockfd);
}

void Server::waitForClient()
{

    printf("Waiting for client.\n");

	serialReceive(msgBuffer); // Recieve filename from client.

    FILE* stream;

    if(stream = fopen(msgBuffer, "r"))      // If opening a file with the name recieved is succesfull continue
    {
        long lengthOfFile = getFileLength(stream);      // Get file length of opened file in bytes.

        printf("User requested: %s with a size of %ld bytes\n", msgBuffer, lengthOfFile); // Print out filename and lenght of file.

        sprintf(msgBuffer, "%ld", lengthOfFile); // Convert lenght of file to string.

		serialSend(msgBuffer, strlen(msgBuffer)+1); // Send lenght of file


        sendFile(stream, lengthOfFile);     // Use function to send file, giving pointer and lenght of the file to send.

        fclose(stream);  // Close file.
    }
    else // If file couldnt be found, print out message and send to client 0 filelenght (its not found).
    {
        printf("Client tried to get: %s\n", msgBuffer);
        serialSend("0", 2);
    }

    printf("Client connection closed\n");
}

void ChatForm::onAttachClicked()
{
    QStringList paths = QFileDialog::getOpenFileNames(0,tr("Send a file"));
    if (paths.isEmpty())
        return;

    for (QString path : paths)
    {
        QFile file(path);
        if (!file.exists() || !file.open(QIODevice::ReadOnly))
        {
            QMessageBox::warning(this, tr("File not read"), tr("qTox wasn't able to open %1").arg(QFileInfo(path).fileName()));
            continue;
        }
        if (file.isSequential())
        {
            QMessageBox::critical(0, tr("Bad Idea"), tr("You're trying to send a special (sequential) file, that's not going to work!"));
            file.close();
            continue;
        }
        long long filesize = file.size();
        file.close();
        QFileInfo fi(path);

        emit sendFile(f->getFriendID(), fi.fileName(), path, filesize);
    }
}

void ChatForm::onScreenshotTaken(const QPixmap &pixmap) {
    // use ~ISO 8601 for screenshot timestamp, considering FS limitations
    // https://en.wikipedia.org/wiki/ISO_8601
    // Windows has to be supported, thus filename can't have `:` in it :/
    // Format should be: `qTox_Screenshot_yyyy-MM-dd HH-mm-ss.zzz.png`
    QString filepath = QString("%1screenshots%2qTox_Screenshot_%3.png")
                           .arg(Settings::getInstance().getSettingsDirPath())
                           .arg(QDir::separator())
                           .arg(QDateTime::currentDateTime().toString("yyyy-MM-dd HH-mm-ss.zzz"));

    QFile file(filepath);

    if (!file.open(QFile::ReadWrite))
    {
        QMessageBox::warning(this,
                             tr("Failed to open temporary file", "Temporary file for screenshot"),
                             tr("qTox wasn't able to save the screenshot"));
        return;
    }

    pixmap.save(&file, "PNG");

    long long filesize = file.size();
    file.close();
    QFileInfo fi(file);

    emit sendFile(f->getFriendID(), fi.fileName(), fi.filePath(), filesize);
}

void FolderSource::sendFolder(File folder, HTTPDecoder& dec) {

	// get all files in this folder
	std::vector<File> files;
	folder.listFiles(files);

	// struct for filesize-status
	struct stat fileStats;

	// process each file
	for (const auto file : files) {

		// if this file is another folder -> recursion
		if (file.isFolder()) {

			// send this subfolder
			sendFolder(file, dec);

		} else {

			// check file-size to skip 0-byte files
			stat(file.getAbsolutePath().c_str(), &fileStats);
			if (fileStats.st_size == 0) {continue;}

			// send one file
			sendFile(file, dec);

			// check if canceled?
			if (!running) {break;}

		}

	}

}

void processHttpMessage(char *httpMessage, int sockClient)
{
    printf("funcion processHttpMessage\n");
    printf("Full HTTP Message:\n");
    logger(httpMessage);
    char GET[4] = "GET\0";
    char *method = substring(httpMessage, 0, 3);
    logger("Method: ");
    logger(method);
    
    if(strcmp(method, GET) == 0) {
        
        int i = 0;
        while(httpMessage[i] != '\n')
        {
            i++;
        }

        char *path = substring(httpMessage, 5, i - 10);
        logger(path);
        int sockIndexProcess = sendPathToIndexProcess(path);
        char *realPath = malloc(8092);
        readMessage(sockIndexProcess, realPath);
        sendFile(sockClient, realPath);
    }
}

int qSslChat::qt_metacall(QMetaObject::Call _c, int _id, void **_a)
{
    _id = QWidget::qt_metacall(_c, _id, _a);
    if (_id < 0)
        return _id;
    if (_c == QMetaObject::InvokeMetaMethod) {
        switch (_id) {
        case 0: peerRejectedFileSend(); break;
        case 1: fsCompleted(); break;
        case 2: hostConnection(); break;
        case 3: connectToHost(); break;
        case 4: activateMsgSending(); break;
        case 5: sendMsg((*reinterpret_cast< QString(*)>(_a[1]))); break;
        case 6: receiveMessage((*reinterpret_cast< QString(*)>(_a[1]))); break;
        case 7: displayMsg(); break;
        case 8: endConnection(); break;
        case 9: sendAnticipation(); break;
        case 10: sendFile((*reinterpret_cast< QString(*)>(_a[1])),(*reinterpret_cast< int(*)>(_a[2])),(*reinterpret_cast< int(*)>(_a[3]))); break;
        case 11: notifyServer(); break;
        case 12: completeFileSend(); break;
        case 13: selectSmiley(); break;
        case 14: insertSmiley((*reinterpret_cast< QString(*)>(_a[1])),(*reinterpret_cast< QString(*)>(_a[2]))); break;
        case 15: displayCertificateInfo(); break;
        }
        _id -= 16;
    }
    return _id;
}

bool ServerSocket::RecvData(char *buffer, int size)
{
	int i = recv(mySocket, buffer, size, 0);
	buffer[i] = '\0';

	cout << "<<< " << buffer;

	// Convert to lower-case to compare
	for (int j = 0; j < i; j++)
		buffer[j] = tolower(buffer[j]);

	// Process commands
	if (strncmp(buffer, "list", 4) == 0)
	{
		// Client wants a dir list!
		// We'll just send them the current one
		dirList("./");
	}
	else if (strncmp(buffer, "send", 4) == 0)
	{
		// Client wants a file!
		sendFile(buffer);
	}
	else if (strncmp(buffer, "quit", 4) == 0)
	{
		// Client wants us to go away!
		done = true;
	}
	return true;
}