basic image over http downloading

2 files changed, 156 insertions, 0 deletions

diff --git a/src/eu/siacs/conversations/http/HttpConnection.java b/src/eu/siacs/conversations/http/HttpConnection.java
new file mode 100644
index 00000000..d3b1700b
--- /dev/null
+++ b/src/eu/siacs/conversations/http/HttpConnection.java
@@ -0,0 +1,129 @@
+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 javax.net.ssl.HttpsURLConnection;
+
+import android.util.Log;
+
+import eu.siacs.conversations.Config;
+import eu.siacs.conversations.DownloadableFile;
+import eu.siacs.conversations.entities.Downloadable;
+import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.services.XmppConnectionService;
+
+public class HttpConnection implements Downloadable {
+
+	private HttpConnectionManager mHttpConnectionManager;
+	private XmppConnectionService mXmppConnectionService;
+
+	private URL mUrl;
+	private Message message;
+	private DownloadableFile file;
+
+	public HttpConnection(HttpConnectionManager manager) {
+		this.mHttpConnectionManager = manager;
+		this.mXmppConnectionService = manager.getXmppConnectionService();
+	}
+
+	@Override
+	public void start() {
+		new Thread(new FileDownloader()).start();
+	}
+
+	public void init(Message message) {
+		this.message = message;
+		this.message.setDownloadable(this);
+		try {
+			mUrl = new URL(message.getBody());
+			this.file = mXmppConnectionService.getFileBackend().getConversationsFile(message,false);
+			message.setType(Message.TYPE_IMAGE);
+			mXmppConnectionService.markMessage(message, Message.STATUS_RECEIVED_OFFER);
+			checkFileSize();
+		} catch (MalformedURLException e) {
+			this.cancel();
+		}
+	}
+	
+	private void checkFileSize() {
+		new Thread(new FileSizeChecker()).start();
+	}
+
+	public void cancel() {
+		mXmppConnectionService.markMessage(message, Message.STATUS_RECEPTION_FAILED);
+		Log.d(Config.LOGTAG,"canceled download");
+	}
+
+	private class FileSizeChecker implements Runnable {
+
+		@Override
+		public void run() {
+			try {
+				long size = retrieveFileSize();
+				file.setExpectedSize(size);
+				if (size <= mHttpConnectionManager.getAutoAcceptFileSize()) {
+					start();
+				}
+				Log.d(Config.LOGTAG,"file size: "+size);
+			} catch (IOException e) {
+				cancel();
+			}
+		}
+
+		private long retrieveFileSize() throws IOException {
+			HttpURLConnection connection = (HttpURLConnection) mUrl.openConnection();
+			connection.setRequestMethod("HEAD");
+			if (connection instanceof HttpsURLConnection) {
+				
+			}
+			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 {
+
+		@Override
+		public void run() {
+			try {
+				mXmppConnectionService.markMessage(message, Message.STATUS_RECEIVING);
+				download();
+				mXmppConnectionService.markMessage(message, Message.STATUS_RECEIVED);
+			} catch (IOException e) {
+				cancel();
+			}
+		}
+		
+		private void download() throws IOException {
+			HttpURLConnection connection = (HttpURLConnection) mUrl.openConnection();
+			if (connection instanceof HttpsURLConnection) {
+				
+			}
+			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();
+			Log.d(Config.LOGTAG,"finished downloading "+file.getAbsolutePath().toString());
+		}
+		
+	}
+}
\ No newline at end of file
diff --git a/src/eu/siacs/conversations/http/HttpConnectionManager.java b/src/eu/siacs/conversations/http/HttpConnectionManager.java
new file mode 100644
index 00000000..ee50ef7e
--- /dev/null
+++ b/src/eu/siacs/conversations/http/HttpConnectionManager.java
@@ -0,0 +1,27 @@
+package eu.siacs.conversations.http;
+
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
+
+import eu.siacs.conversations.AbstractConnectionManager;
+import eu.siacs.conversations.entities.Message;
+import eu.siacs.conversations.services.XmppConnectionService;
+
+public class HttpConnectionManager extends AbstractConnectionManager {
+
+	public HttpConnectionManager(XmppConnectionService service) {
+		super(service);
+	}
+
+	private XmppConnectionService mXmppConnectionService;
+	
+	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;
+	}
+}