Method parseHost

java/org/apache/coyote/AbstractProcessor.java:307–381

Parses the Host header value and populates the server name and port. @param valueMB The MessageBytes containing the Host header value

(MessageBytes valueMB)

     * @param valueMB The MessageBytes containing the Host header value
     */
    protected void parseHost(MessageBytes valueMB) {
        if (valueMB == null || valueMB.isNull()) {
            populateHost();
            populatePort();
            return;
        } else if (valueMB.getLength() == 0) {
            // Empty Host header so set sever name to empty string
            request.serverName().setString("");
            populatePort();
            return;
        }

        ByteChunk valueBC = valueMB.getByteChunk();
        byte[] valueB = valueBC.getBytes();
        int valueL = valueBC.getLength();
        int valueS = valueBC.getStart();
        if (hostNameC.length < valueL) {
            hostNameC = new char[valueL];
        }

        try {
            // Validates the host name
            int colonPos = Host.parse(valueMB);

            // Extract the port information first, if any
            if (colonPos != -1) {
                int port = 0;
                for (int i = colonPos + 1; i < valueL; i++) {
                    char c = (char) valueB[i + valueS];
                    if (c < '0' || c > '9') {
                        response.setStatus(400);
                        setErrorState(ErrorState.CLOSE_CLEAN, null);
                        return;
                    }
                    int digit = c - '0';
                    if (port > (Integer.MAX_VALUE - digit) / 10) {
                        response.setStatus(400);
                        setErrorState(ErrorState.CLOSE_CLEAN, null);
                        return;
                    }
                    port = port * 10 + digit;
                }
                request.setServerPort(port);

                // Only need to copy the host name up to the :
                valueL = colonPos;
            }

            // Extract the host name
            for (int i = 0; i < valueL; i++) {
                hostNameC[i] = (char) valueB[i + valueS];
            }
            request.serverName().setChars(hostNameC, 0, valueL);

        } catch (IllegalArgumentException e) {
            // IllegalArgumentException indicates that the host name is invalid
            UserDataHelper.Mode logMode = userDataHelper.getNextMode();
            if (logMode != null) {