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; } } }