Merge branch 'gradle' into development

Conflicts:
	.gitignore
	CHANGELOG.md
	README.md
	libs/MemorizingTrustManager
	libs/minidns
	libs/openpgp-api-lib

2 files changed, 298 insertions, 0 deletions

diff --git a/src/main/java/eu/siacs/conversations/http/HttpConnection.java b/src/main/java/eu/siacs/conversations/http/HttpConnection.java
new file mode 100644
index 00000000..0810e167
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/http/HttpConnection.java
@@ -0,0 +1,270 @@
+package eu.siacs.conversations.http;
+
+import java.io.BufferedInputStream;
+import java.io.IOException;
+import java.io.OutputStream;
+import java.net.HttpURLConnection;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.security.KeyManagementException;
+import java.security.NoSuchAlgorithmException;
+
+import javax.net.ssl.HostnameVerifier;
+import javax.net.ssl.HttpsURLConnection;
+import javax.net.ssl.SSLContext;
+import javax.net.ssl.SSLHandshakeException;
+import javax.net.ssl.X509TrustManager;
+
+import org.apache.http.conn.ssl.StrictHostnameVerifier;
+
+import android.content.Intent;
+import android.graphics.BitmapFactory;
+import android.net.Uri;
+
+import eu.siacs.conversations.entities.Downloadable;
+import eu.siacs.conversations.entities.DownloadableFile;
+import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.services.XmppConnectionService;
+import eu.siacs.conversations.utils.CryptoHelper;
+
+public class HttpConnection implements Downloadable {
+
+	private HttpConnectionManager mHttpConnectionManager;
+	private XmppConnectionService mXmppConnectionService;
+
+	private URL mUrl;
+	private Message message;
+	private DownloadableFile file;
+	private int mStatus = Downloadable.STATUS_UNKNOWN;
+	private boolean acceptedAutomatically = false;
+
+	public HttpConnection(HttpConnectionManager manager) {
+		this.mHttpConnectionManager = manager;
+		this.mXmppConnectionService = manager.getXmppConnectionService();
+	}
+
+	@Override
+	public boolean start() {
+		if (mXmppConnectionService.hasInternetConnection()) {
+			if (this.mStatus == STATUS_OFFER_CHECK_FILESIZE) {
+				checkFileSize(true);
+			} else {
+				new Thread(new FileDownloader(true)).start();
+			}
+			return true;
+		} else {
+			return false;
+		}
+	}
+
+	public void init(Message message) {
+		this.message = message;
+		this.message.setDownloadable(this);
+		try {
+			mUrl = new URL(message.getBody());
+			String path = mUrl.getPath();
+			if (path != null && (path.endsWith(".pgp") || path.endsWith(".gpg"))) {
+				this.message.setEncryption(Message.ENCRYPTION_PGP);
+			} else if (message.getEncryption() != Message.ENCRYPTION_OTR) {
+				this.message.setEncryption(Message.ENCRYPTION_NONE);
+			}
+			this.file = mXmppConnectionService.getFileBackend().getFile(
+					message, false);
+			String reference = mUrl.getRef();
+			if (reference != null && reference.length() == 96) {
+				this.file.setKey(CryptoHelper.hexToBytes(reference));
+			}
+			
+			if (this.message.getEncryption() == Message.ENCRYPTION_OTR
+					&& this.file.getKey() == null) {
+				this.message.setEncryption(Message.ENCRYPTION_NONE);
+			}
+			checkFileSize(false);
+		} catch (MalformedURLException e) {
+			this.cancel();
+		}
+	}
+
+	private void checkFileSize(boolean interactive) {
+		new Thread(new FileSizeChecker(interactive)).start();
+	}
+
+	public void cancel() {
+		mHttpConnectionManager.finishConnection(this);
+		message.setDownloadable(null);
+		mXmppConnectionService.updateConversationUi();
+	}
+
+	private void finish() {
+		Intent intent = new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE);
+		intent.setData(Uri.fromFile(file));
+		mXmppConnectionService.sendBroadcast(intent);
+		message.setDownloadable(null);
+		mHttpConnectionManager.finishConnection(this);
+		mXmppConnectionService.updateConversationUi();
+		if (acceptedAutomatically) {
+			mXmppConnectionService.getNotificationService().push(message);
+		}
+	}
+
+	private void changeStatus(int status) {
+		this.mStatus = status;
+		mXmppConnectionService.updateConversationUi();
+	}
+
+	private void setupTrustManager(HttpsURLConnection connection,
+			boolean interactive) {
+		X509TrustManager trustManager;
+		HostnameVerifier hostnameVerifier;
+		if (interactive) {
+			trustManager = mXmppConnectionService.getMemorizingTrustManager();
+			hostnameVerifier = mXmppConnectionService
+					.getMemorizingTrustManager().wrapHostnameVerifier(
+							new StrictHostnameVerifier());
+		} else {
+			trustManager = mXmppConnectionService.getMemorizingTrustManager()
+					.getNonInteractive();
+			hostnameVerifier = mXmppConnectionService
+					.getMemorizingTrustManager()
+					.wrapHostnameVerifierNonInteractive(
+							new StrictHostnameVerifier());
+		}
+		try {
+			SSLContext sc = SSLContext.getInstance("TLS");
+			sc.init(null, new X509TrustManager[] { trustManager },
+					mXmppConnectionService.getRNG());
+			connection.setSSLSocketFactory(sc.getSocketFactory());
+			connection.setHostnameVerifier(hostnameVerifier);
+		} catch (KeyManagementException e) {
+			return;
+		} catch (NoSuchAlgorithmException e) {
+			return;
+		}
+	}
+
+	private class FileSizeChecker implements Runnable {
+
+		private boolean interactive = false;
+
+		public FileSizeChecker(boolean interactive) {
+			this.interactive = interactive;
+		}
+
+		@Override
+		public void run() {
+			long size;
+			try {
+				size = retrieveFileSize();
+			} catch (SSLHandshakeException e) {
+				changeStatus(STATUS_OFFER_CHECK_FILESIZE);
+				HttpConnection.this.acceptedAutomatically = false;
+				HttpConnection.this.mXmppConnectionService.getNotificationService().push(message);
+				return;
+			} catch (IOException e) {
+				cancel();
+				return;
+			}
+			file.setExpectedSize(size);
+			if (size <= mHttpConnectionManager.getAutoAcceptFileSize()) {
+				HttpConnection.this.acceptedAutomatically = true;
+				new Thread(new FileDownloader(interactive)).start();
+			} else {
+				changeStatus(STATUS_OFFER);
+				HttpConnection.this.acceptedAutomatically = false;
+				HttpConnection.this.mXmppConnectionService.getNotificationService().push(message);
+			}
+		}
+
+		private long retrieveFileSize() throws IOException,
+				SSLHandshakeException {
+			changeStatus(STATUS_CHECKING);
+			HttpURLConnection connection = (HttpURLConnection) mUrl
+					.openConnection();
+			connection.setRequestMethod("HEAD");
+			if (connection instanceof HttpsURLConnection) {
+				setupTrustManager((HttpsURLConnection) connection, interactive);
+			}
+			connection.connect();
+			String contentLength = connection.getHeaderField("Content-Length");
+			if (contentLength == null) {
+				throw new IOException();
+			}
+			try {
+				return Long.parseLong(contentLength, 10);
+			} catch (NumberFormatException e) {
+				throw new IOException();
+			}
+		}
+
+	}
+
+	private class FileDownloader implements Runnable {
+
+		private boolean interactive = false;
+
+		public FileDownloader(boolean interactive) {
+			this.interactive = interactive;
+		}
+
+		@Override
+		public void run() {
+			try {
+				changeStatus(STATUS_DOWNLOADING);
+				download();
+				updateImageBounds();
+				finish();
+			} catch (SSLHandshakeException e) {
+				changeStatus(STATUS_OFFER);
+			} catch (IOException e) {
+				cancel();
+			}
+		}
+
+		private void download() throws SSLHandshakeException, IOException {
+			HttpURLConnection connection = (HttpURLConnection) mUrl
+					.openConnection();
+			if (connection instanceof HttpsURLConnection) {
+				setupTrustManager((HttpsURLConnection) connection, interactive);
+			}
+			connection.connect();
+			BufferedInputStream is = new BufferedInputStream(
+					connection.getInputStream());
+			OutputStream os = file.createOutputStream();
+			int count = -1;
+			byte[] buffer = new byte[1024];
+			while ((count = is.read(buffer)) != -1) {
+				os.write(buffer, 0, count);
+			}
+			os.flush();
+			os.close();
+			is.close();
+		}
+
+		private void updateImageBounds() {
+			BitmapFactory.Options options = new BitmapFactory.Options();
+			options.inJustDecodeBounds = true;
+			BitmapFactory.decodeFile(file.getAbsolutePath(), options);
+			int imageHeight = options.outHeight;
+			int imageWidth = options.outWidth;
+			message.setBody(mUrl.toString() + "|" + file.getSize() + '|'
+					+ imageWidth + '|' + imageHeight);
+			message.setType(Message.TYPE_IMAGE);
+			mXmppConnectionService.updateMessage(message);
+		}
+
+	}
+
+	@Override
+	public int getStatus() {
+		return this.mStatus;
+	}
+
+	@Override
+	public long getFileSize() {
+		if (this.file != null) {
+			return this.file.getExpectedSize();
+		} else {
+			return 0;
+		}
+	}
+}
\ No newline at end of file
diff --git a/src/main/java/eu/siacs/conversations/http/HttpConnectionManager.java b/src/main/java/eu/siacs/conversations/http/HttpConnectionManager.java
new file mode 100644
index 00000000..9a2a2405
--- /dev/null
+++ b/src/main/java/eu/siacs/conversations/http/HttpConnectionManager.java
@@ -0,0 +1,28 @@
+package eu.siacs.conversations.http;
+
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.services.AbstractConnectionManager;
+import eu.siacs.conversations.services.XmppConnectionService;
+
+public class HttpConnectionManager extends AbstractConnectionManager {
+
+	public HttpConnectionManager(XmppConnectionService service) {
+		super(service);
+	}
+
+	private List<HttpConnection> connections = new CopyOnWriteArrayList<HttpConnection>();
+
+	public HttpConnection createNewConnection(Message message) {
+		HttpConnection connection = new HttpConnection(this);
+		connection.init(message);
+		this.connections.add(connection);
+		return connection;
+	}
+
+	public void finishConnection(HttpConnection connection) {
+		this.connections.remove(connection);
+	}
+}