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Code Issues Packages Projects Releases Wiki Activity

S/MIME encryption proof of concept

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M66B
2019-12-03 19:29:46 +01:00
parent dd48729c5d
commit a156fe0034
4 changed files with 30 additions and 10 deletions
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25
app/src/main/java/eu/faircode/email/MessageHelper.java
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@@ -23,7 +23,6 @@ import android.content.Context;
import android.net.MailTo;
import android.net.Uri;
import android.text.TextUtils;
import android.util.Base64;
import com.sun.mail.util.FolderClosedIOException;
import com.sun.mail.util.MessageRemovedIOException;
@@ -33,6 +32,7 @@ import org.jsoup.nodes.Document;
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.BufferedReader;
import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
@@ -58,6 +58,7 @@ import java.util.TimeZone;
import java.util.regex.Pattern;
import javax.activation.DataHandler;
import javax.activation.DataSource;
import javax.activation.FileDataSource;
import javax.activation.FileTypeMap;
import javax.mail.Address;
@@ -392,7 +393,27 @@ public class MessageHelper {
ct.setParameter("smime-type", "enveloped-data");
imessage.setDisposition(Part.ATTACHMENT);
imessage.setFileName(attachment.name);
imessage.setContent(Base64.encodeToString(encryptedData, Base64.DEFAULT), ct.toString());
imessage.setDataHandler(new DataHandler(new DataSource() {
@Override
public InputStream getInputStream() throws IOException {
return new ByteArrayInputStream(encryptedData);
}
@Override
public OutputStream getOutputStream() throws IOException {
return null;
}
@Override
public String getContentType() {
return ct.toString();
}
@Override
public String getName() {
return null;
}
}));
return imessage;
}