From 49b779dcaf03e3598d2709b321e20ea029b25163 Mon Sep 17 00:00:00 2001
From: Kenny Root <kenny@the-b.org>
Date: Wed, 1 Oct 2014 23:04:51 +0100
Subject: Convert to gradle build system

---
 .../main/java/org/connectbot/service/Relay.java    | 145 +++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 app/src/main/java/org/connectbot/service/Relay.java

(limited to 'app/src/main/java/org/connectbot/service/Relay.java')

diff --git a/app/src/main/java/org/connectbot/service/Relay.java b/app/src/main/java/org/connectbot/service/Relay.java
new file mode 100644
index 0000000..36672ec
--- /dev/null
+++ b/app/src/main/java/org/connectbot/service/Relay.java
@@ -0,0 +1,145 @@
+/*
+ * ConnectBot: simple, powerful, open-source SSH client for Android
+ * Copyright 2007 Kenny Root, Jeffrey Sharkey
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.connectbot.service;
+
+import java.io.IOException;
+import java.nio.ByteBuffer;
+import java.nio.CharBuffer;
+import java.nio.charset.Charset;
+import java.nio.charset.CharsetDecoder;
+import java.nio.charset.CoderResult;
+import java.nio.charset.CodingErrorAction;
+
+import org.apache.harmony.niochar.charset.additional.IBM437;
+import org.connectbot.transport.AbsTransport;
+import org.connectbot.util.EastAsianWidth;
+
+import android.util.Log;
+import de.mud.terminal.vt320;
+
+/**
+ * @author Kenny Root
+ */
+public class Relay implements Runnable {
+	private static final String TAG = "ConnectBot.Relay";
+
+	private static final int BUFFER_SIZE = 4096;
+
+	private TerminalBridge bridge;
+
+	private Charset currentCharset;
+	private CharsetDecoder decoder;
+
+	private AbsTransport transport;
+
+	private vt320 buffer;
+
+	private ByteBuffer byteBuffer;
+	private CharBuffer charBuffer;
+
+	private byte[] byteArray;
+	private char[] charArray;
+
+	public Relay(TerminalBridge bridge, AbsTransport transport, vt320 buffer, String encoding) {
+		setCharset(encoding);
+		this.bridge = bridge;
+		this.transport = transport;
+		this.buffer = buffer;
+	}
+
+	public void setCharset(String encoding) {
+		Log.d("ConnectBot.Relay", "changing charset to " + encoding);
+		Charset charset;
+		if (encoding.equals("CP437"))
+			charset = new IBM437("IBM437",
+					new String[] { "IBM437", "CP437" });
+		else
+			charset = Charset.forName(encoding);
+
+		if (charset == currentCharset || charset == null)
+			return;
+
+		CharsetDecoder newCd = charset.newDecoder();
+		newCd.onUnmappableCharacter(CodingErrorAction.REPLACE);
+		newCd.onMalformedInput(CodingErrorAction.REPLACE);
+
+		currentCharset = charset;
+		synchronized (this) {
+			decoder = newCd;
+		}
+	}
+
+	public Charset getCharset() {
+		return currentCharset;
+	}
+
+	public void run() {
+		byteBuffer = ByteBuffer.allocate(BUFFER_SIZE);
+		charBuffer = CharBuffer.allocate(BUFFER_SIZE);
+
+		/* for East Asian character widths */
+		byte[] wideAttribute = new byte[BUFFER_SIZE];
+
+		byteArray = byteBuffer.array();
+		charArray = charBuffer.array();
+
+		CoderResult result;
+
+		int bytesRead = 0;
+		byteBuffer.limit(0);
+		int bytesToRead;
+		int offset;
+		int charWidth;
+
+		EastAsianWidth measurer = EastAsianWidth.getInstance();
+
+		try {
+			while (true) {
+				charWidth = bridge.charWidth;
+				bytesToRead = byteBuffer.capacity() - byteBuffer.limit();
+				offset = byteBuffer.arrayOffset() + byteBuffer.limit();
+				bytesRead = transport.read(byteArray, offset, bytesToRead);
+
+				if (bytesRead > 0) {
+					byteBuffer.limit(byteBuffer.limit() + bytesRead);
+
+					synchronized (this) {
+						result = decoder.decode(byteBuffer, charBuffer, false);
+					}
+
+					if (result.isUnderflow() &&
+							byteBuffer.limit() == byteBuffer.capacity()) {
+						byteBuffer.compact();
+						byteBuffer.limit(byteBuffer.position());
+						byteBuffer.position(0);
+					}
+
+					offset = charBuffer.position();
+
+					measurer.measure(charArray, 0, offset, wideAttribute, bridge.defaultPaint, charWidth);
+					buffer.putString(charArray, wideAttribute, 0, charBuffer.position());
+					bridge.propagateConsoleText(charArray, charBuffer.position());
+					charBuffer.clear();
+					bridge.redraw();
+				}
+			}
+		} catch (IOException e) {
+			Log.e(TAG, "Problem while handling incoming data in relay thread", e);
+		}
+	}
+}
-- 
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