diff options
Diffstat (limited to 'conversations/src/main/java/eu/siacs/conversations/http/HttpConnection.java')
| -rw-r--r-- | conversations/src/main/java/eu/siacs/conversations/http/HttpConnection.java | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/conversations/src/main/java/eu/siacs/conversations/http/HttpConnection.java b/conversations/src/main/java/eu/siacs/conversations/http/HttpConnection.java new file mode 100644 index 00000000..407a13d9 --- /dev/null +++ b/conversations/src/main/java/eu/siacs/conversations/http/HttpConnection.java @@ -0,0 +1,255 @@ +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 android.util.Log; + +import eu.siacs.conversations.Config; +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; + + 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()); + 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); + } + + 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); + return; + } catch (IOException e) { + cancel(); + return; + } + file.setExpectedSize(size); + if (size <= mHttpConnectionManager.getAutoAcceptFileSize()) { + new Thread(new FileDownloader(interactive)).start(); + } else { + changeStatus(STATUS_OFFER); + } + } + + 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; + } + } +}
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