Examples with TypesWriter com.trilead.ssh2.packets.TypesWriter used on opensource projects

Example 1 with TypesWriter

use of com.trilead.ssh2.packets.TypesWriter in project intellij-community by JetBrains.

the class DSASHA1Verify method encodeSSHDSASignature.

public static byte[] encodeSSHDSASignature(DSASignature ds) {
    TypesWriter tw = new TypesWriter();
    tw.writeString("ssh-dss");
    byte[] r = ds.getR().toByteArray();
    byte[] s = ds.getS().toByteArray();
    byte[] a40 = new byte[40];
    /* Patch (unsigned) r and s into the target array. */
    int r_copylen = (r.length < 20) ? r.length : 20;
    int s_copylen = (s.length < 20) ? s.length : 20;
    System.arraycopy(r, r.length - r_copylen, a40, 20 - r_copylen, r_copylen);
    System.arraycopy(s, s.length - s_copylen, a40, 40 - s_copylen, s_copylen);
    tw.writeString(a40, 0, 40);
    return tw.getBytes();
}

Example 2 with TypesWriter

use of com.trilead.ssh2.packets.TypesWriter in project intellij-community by JetBrains.

the class SFTPv3Client method canonicalPath.

/**
	 * Have the server canonicalize any given path name to an absolute path.
	 * This is useful for converting path names containing ".." components or
	 * relative pathnames without a leading slash into absolute paths.
	 * 
	 * @param path See the {@link SFTPv3Client comment} for the class for more details.
	 * @return An absolute path.
	 * @throws IOException
	 */
public String canonicalPath(String path) throws IOException {
    int req_id = generateNextRequestID();
    TypesWriter tw = new TypesWriter();
    tw.writeString(path, charsetName);
    if (debug != null) {
        debug.println("Sending SSH_FXP_REALPATH...");
        debug.flush();
    }
    sendMessage(Packet.SSH_FXP_REALPATH, req_id, tw.getBytes());
    byte[] resp = receiveMessage(34000);
    if (debug != null) {
        debug.println("Got REPLY.");
        debug.flush();
    }
    TypesReader tr = new TypesReader(resp);
    int t = tr.readByte();
    int rep_id = tr.readUINT32();
    if (rep_id != req_id)
        throw new IOException("The server sent an invalid id field.");
    if (t == Packet.SSH_FXP_NAME) {
        int count = tr.readUINT32();
        if (count != 1)
            throw new IOException("The server sent an invalid SSH_FXP_NAME packet.");
        return tr.readString(charsetName);
    }
    if (t != Packet.SSH_FXP_STATUS)
        throw new IOException("The SFTP server sent an unexpected packet type (" + t + ")");
    int errorCode = tr.readUINT32();
    throw new SFTPException(tr.readString(), errorCode);
}

Example 3 with TypesWriter

use of com.trilead.ssh2.packets.TypesWriter in project intellij-community by JetBrains.

the class SFTPv3Client method openDirectory.

private final byte[] openDirectory(String path) throws IOException {
    int req_id = generateNextRequestID();
    TypesWriter tw = new TypesWriter();
    tw.writeString(path, charsetName);
    if (debug != null) {
        debug.println("Sending SSH_FXP_OPENDIR...");
        debug.flush();
    }
    sendMessage(Packet.SSH_FXP_OPENDIR, req_id, tw.getBytes());
    byte[] resp = receiveMessage(34000);
    TypesReader tr = new TypesReader(resp);
    int t = tr.readByte();
    int rep_id = tr.readUINT32();
    if (rep_id != req_id)
        throw new IOException("The server sent an invalid id field.");
    if (t == Packet.SSH_FXP_HANDLE) {
        if (debug != null) {
            debug.println("Got SSH_FXP_HANDLE.");
            debug.flush();
        }
        byte[] handle = tr.readByteString();
        return handle;
    }
    if (t != Packet.SSH_FXP_STATUS)
        throw new IOException("The SFTP server sent an unexpected packet type (" + t + ")");
    int errorCode = tr.readUINT32();
    String errorMessage = tr.readString();
    throw new SFTPException(errorMessage, errorCode);
}

Example 4 with TypesWriter

use of com.trilead.ssh2.packets.TypesWriter in project intellij-community by JetBrains.

the class SFTPv3Client method rm.

/**
	 * Remove a file.
	 * 
	 * @param fileName See the {@link SFTPv3Client comment} for the class for more details.
	 * @throws IOException
	 */
public void rm(String fileName) throws IOException {
    int req_id = generateNextRequestID();
    TypesWriter tw = new TypesWriter();
    tw.writeString(fileName, charsetName);
    sendMessage(Packet.SSH_FXP_REMOVE, req_id, tw.getBytes());
    expectStatusOKMessage(req_id);
}

Example 5 with TypesWriter

use of com.trilead.ssh2.packets.TypesWriter in project intellij-community by JetBrains.

the class SFTPv3Client method read.

/**
	 * Read bytes from a file. No more than 32768 bytes may be read at once.
	 * Be aware that the semantics of read() are different than for Java streams.
	 * <p>
	 * <ul>
	 * <li>The server will read as many bytes as it can from the file (up to <code>len</code>),
	 * and return them.</li>
	 * <li>If EOF is encountered before reading any data, <code>-1</code> is returned.
	 * <li>If an error occurs, an exception is thrown</li>.
	 * <li>For normal disk files, it is guaranteed that the server will return the specified
	 * number of bytes, or up to end of file. For, e.g., device files this may return
	 * fewer bytes than requested.</li>
	 * </ul>
	 * 
	 * @param handle a SFTPv3FileHandle handle
	 * @param fileOffset offset (in bytes) in the file
	 * @param dst the destination byte array
	 * @param dstoff offset in the destination byte array
	 * @param len how many bytes to read, 0 &lt; len &lt;= 32768 bytes
	 * @return the number of bytes that could be read, may be less than requested if
	 *         the end of the file is reached, -1 is returned in case of <code>EOF</code>
	 * @throws IOException
	 */
public int read(SFTPv3FileHandle handle, long fileOffset, byte[] dst, int dstoff, int len) throws IOException {
    checkHandleValidAndOpen(handle);
    if ((len > 32768) || (len <= 0))
        throw new IllegalArgumentException("invalid len argument");
    int req_id = generateNextRequestID();
    TypesWriter tw = new TypesWriter();
    tw.writeString(handle.fileHandle, 0, handle.fileHandle.length);
    tw.writeUINT64(fileOffset);
    tw.writeUINT32(len);
    if (debug != null) {
        debug.println("Sending SSH_FXP_READ...");
        debug.flush();
    }
    sendMessage(Packet.SSH_FXP_READ, req_id, tw.getBytes());
    byte[] resp = receiveMessage(34000);
    TypesReader tr = new TypesReader(resp);
    int t = tr.readByte();
    int rep_id = tr.readUINT32();
    if (rep_id != req_id)
        throw new IOException("The server sent an invalid id field.");
    if (t == Packet.SSH_FXP_DATA) {
        if (debug != null) {
            debug.println("Got SSH_FXP_DATA...");
            debug.flush();
        }
        int readLen = tr.readUINT32();
        if ((readLen < 0) || (readLen > len))
            throw new IOException("The server sent an invalid length field.");
        tr.readBytes(dst, dstoff, readLen);
        return readLen;
    }
    if (t != Packet.SSH_FXP_STATUS)
        throw new IOException("The SFTP server sent an unexpected packet type (" + t + ")");
    int errorCode = tr.readUINT32();
    if (errorCode == ErrorCodes.SSH_FX_EOF) {
        if (debug != null) {
            debug.println("Got SSH_FX_EOF.");
            debug.flush();
        }
        return -1;
    }
    String errorMessage = tr.readString();
    throw new SFTPException(errorMessage, errorCode);
}