diff options
Diffstat (limited to 'src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java')
-rw-r--r-- | src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java | 270 |
1 files changed, 270 insertions, 0 deletions
diff --git a/src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java b/src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java new file mode 100644 index 00000000..94a76837 --- /dev/null +++ b/src/main/java/eu/siacs/conversations/http/HttpDownloadConnection.java @@ -0,0 +1,270 @@ +package eu.siacs.conversations.http; + +import android.content.Intent; +import android.net.Uri; +import android.os.SystemClock; +import android.util.Log; + +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.util.Arrays; + +import javax.net.ssl.HttpsURLConnection; +import javax.net.ssl.SSLHandshakeException; + +import de.thedevstack.conversationsplus.ConversationsPlusPreferences; +import eu.siacs.conversations.Config; +import eu.siacs.conversations.R; +import eu.siacs.conversations.entities.Transferable; +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 HttpDownloadConnection implements Transferable { + + private HttpConnectionManager mHttpConnectionManager; + private XmppConnectionService mXmppConnectionService; + + private URL mUrl; + private Message message; + private DownloadableFile file; + private int mStatus = Transferable.STATUS_UNKNOWN; + private boolean acceptedAutomatically = false; + private int mProgress = 0; + private long mLastGuiRefresh = 0; + + public HttpDownloadConnection(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) { + init(message, false); + } + + public void init(Message message, boolean interactive) { + this.message = message; + this.message.setTransferable(this); + try { + mUrl = new URL(message.getBody()); + String[] parts = mUrl.getPath().toLowerCase().split("\\."); + String lastPart = parts.length >= 1 ? parts[parts.length - 1] : null; + String secondToLast = parts.length >= 2 ? parts[parts.length -2] : null; + if ("pgp".equals(lastPart) || "gpg".equals(lastPart)) { + this.message.setEncryption(Message.ENCRYPTION_PGP); + } else if (message.getEncryption() != Message.ENCRYPTION_OTR) { + this.message.setEncryption(Message.ENCRYPTION_NONE); + } + String extension; + if (Arrays.asList(VALID_CRYPTO_EXTENSIONS).contains(lastPart)) { + extension = secondToLast; + } else { + extension = lastPart; + } + message.setRelativeFilePath(message.getUuid()+"."+extension); + 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(interactive); + } catch (MalformedURLException e) { + this.cancel(); + } + } + + private void checkFileSize(boolean interactive) { + new Thread(new FileSizeChecker(interactive)).start(); + } + + public void cancel() { + mHttpConnectionManager.finishConnection(this); + message.setTransferable(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.setTransferable(null); + mHttpConnectionManager.finishConnection(this); + mXmppConnectionService.updateConversationUi(); + if (acceptedAutomatically) { + mXmppConnectionService.getNotificationService().push(message); + } + } + + private void changeStatus(int status) { + this.mStatus = status; + mXmppConnectionService.updateConversationUi(); + } + + 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); + HttpDownloadConnection.this.acceptedAutomatically = false; + HttpDownloadConnection.this.mXmppConnectionService.getNotificationService().push(message); + return; + } catch (IOException e) { + Log.d(Config.LOGTAG, "io exception in http file size checker: " + e.getMessage()); + if (interactive) { + mXmppConnectionService.showErrorToastInUi(R.string.file_not_found_on_remote_host); + } + cancel(); + return; + } + file.setExpectedSize(size); + if (size != -1 && size <= ConversationsPlusPreferences.autoAcceptFileSize()) { + HttpDownloadConnection.this.acceptedAutomatically = true; + new Thread(new FileDownloader(interactive)).start(); + } else { + changeStatus(STATUS_OFFER); + HttpDownloadConnection.this.acceptedAutomatically = false; + HttpDownloadConnection.this.mXmppConnectionService.getNotificationService().push(message); + } + } + + private long retrieveFileSize() throws IOException { + Log.d(Config.LOGTAG,"retrieve file size. interactive:"+String.valueOf(interactive)); + changeStatus(STATUS_CHECKING); + HttpURLConnection connection = (HttpURLConnection) mUrl.openConnection(); + connection.setRequestMethod("HEAD"); + if (connection instanceof HttpsURLConnection) { + mHttpConnectionManager.setupTrustManager((HttpsURLConnection) connection, interactive); + } + connection.connect(); + String contentLength = connection.getHeaderField("Content-Length"); + if (contentLength == null) { + return -1; + } + try { + return Long.parseLong(contentLength, 10); + } catch (NumberFormatException e) { + return -1; + } + } + + } + + 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) { + mXmppConnectionService.showErrorToastInUi(R.string.file_not_found_on_remote_host); + cancel(); + } + } + + private void download() throws SSLHandshakeException, IOException { + HttpURLConnection connection = (HttpURLConnection) mUrl.openConnection(); + if (connection instanceof HttpsURLConnection) { + mHttpConnectionManager.setupTrustManager((HttpsURLConnection) connection, interactive); + } + connection.connect(); + BufferedInputStream is = new BufferedInputStream(connection.getInputStream()); + file.getParentFile().mkdirs(); + file.createNewFile(); + OutputStream os = file.createOutputStream(); + if (os == null) { + throw new IOException(); + } + long transmitted = 0; + long expected = file.getExpectedSize(); + int count = -1; + byte[] buffer = new byte[1024]; + while ((count = is.read(buffer)) != -1) { + transmitted += count; + os.write(buffer, 0, count); + updateProgress((int) ((((double) transmitted) / expected) * 100)); + } + os.flush(); + os.close(); + is.close(); + } + + private void updateImageBounds() { + message.setType(Message.TYPE_FILE); + mXmppConnectionService.getFileBackend().updateFileParams(message, mUrl); + mXmppConnectionService.updateMessage(message); + } + + } + + public void updateProgress(int i) { + this.mProgress = i; + if (SystemClock.elapsedRealtime() - this.mLastGuiRefresh > Config.PROGRESS_UI_UPDATE_INTERVAL) { + this.mLastGuiRefresh = SystemClock.elapsedRealtime(); + mXmppConnectionService.updateConversationUi(); + } + } + + @Override + public int getStatus() { + return this.mStatus; + } + + @Override + public long getFileSize() { + if (this.file != null) { + return this.file.getExpectedSize(); + } else { + return 0; + } + } + + @Override + public int getProgress() { + return this.mProgress; + } +} |