FairEmail/app/src/main/java/eu/faircode/email/ActivityEML.java

304 lines
13 KiB
Java

package eu.faircode.email;
/*
This file is part of FairEmail.
FairEmail is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
FairEmail is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with FairEmail. If not, see <http://www.gnu.org/licenses/>.
Copyright 2018-2019 by Marcel Bokhorst (M66B)
*/
import android.Manifest;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.res.AssetFileDescriptor;
import android.net.Uri;
import android.os.Bundle;
import android.text.Spanned;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import android.widget.Toast;
import androidx.annotation.NonNull;
import androidx.appcompat.app.AlertDialog;
import androidx.constraintlayout.widget.Group;
import com.google.android.material.snackbar.Snackbar;
import com.sun.mail.imap.IMAPFolder;
import java.io.InputStream;
import java.util.List;
import java.util.Properties;
import javax.mail.Flags;
import javax.mail.Folder;
import javax.mail.Message;
import javax.mail.Session;
import javax.mail.internet.MimeMessage;
public class ActivityEML extends ActivityBase {
private Uri uri;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
getSupportActionBar().setSubtitle("EML");
setContentView(R.layout.activity_eml);
final TextView tvTo = findViewById(R.id.tvTo);
final TextView tvFrom = findViewById(R.id.tvFrom);
final TextView tvReplyTo = findViewById(R.id.tvReplyTo);
final TextView tvCc = findViewById(R.id.tvCc);
final TextView tvBcc = findViewById(R.id.tvBcc);
final TextView tvSubject = findViewById(R.id.tvSubject);
final TextView tvHeaders = findViewById(R.id.tvHeaders);
final TextView tvParts = findViewById(R.id.tvParts);
final TextView tvBody = findViewById(R.id.tvBody);
final TextView tvHtml = findViewById(R.id.tvHtml);
final ContentLoadingProgressBar pbWait = findViewById(R.id.pbWait);
final Group grpReady = findViewById(R.id.grpReady);
grpReady.setVisibility(View.GONE);
uri = getIntent().getData();
if (uri == null) {
pbWait.setVisibility(View.GONE);
return;
} else
pbWait.setVisibility(View.VISIBLE);
Log.i("EML uri=" + uri);
Bundle args = new Bundle();
args.putParcelable("uri", uri);
new SimpleTask<Result>() {
@Override
protected void onPostExecute(Bundle args) {
pbWait.setVisibility(View.GONE);
}
@Override
protected Result onExecute(Context context, Bundle args) throws Throwable {
Uri uri = args.getParcelable("uri");
if ("file".equals(uri.getScheme()) &&
!Helper.hasPermission(context, Manifest.permission.READ_EXTERNAL_STORAGE)) {
Log.w("EML uri=" + uri);
throw new IllegalArgumentException(context.getString(R.string.title_no_stream));
}
Result result = new Result();
ContentResolver resolver = context.getContentResolver();
AssetFileDescriptor descriptor = resolver.openTypedAssetFileDescriptor(uri, "*/*", null);
try (InputStream is = descriptor.createInputStream()) {
Properties props = MessageHelper.getSessionProperties();
Session isession = Session.getInstance(props, null);
MimeMessage imessage = new MimeMessage(isession, is);
MessageHelper helper = new MessageHelper(imessage);
result.from = MessageHelper.formatAddresses(helper.getFrom());
result.to = MessageHelper.formatAddresses(helper.getTo());
result.replyto = MessageHelper.formatAddresses(helper.getReply());
result.cc = MessageHelper.formatAddresses(helper.getCc());
result.bcc = MessageHelper.formatAddresses(helper.getBcc());
result.subject = helper.getSubject();
result.headers = HtmlHelper.highlightHeaders(context, helper.getHeaders());
MessageHelper.MessageParts parts = helper.getMessageParts();
StringBuilder sb = new StringBuilder();
for (MessageHelper.AttachmentPart apart : parts.getAttachmentParts()) {
if (sb.length() > 0)
sb.append("<br>");
sb.append(apart.part.getContentType());
if (apart.disposition != null)
sb.append(' ').append(apart.disposition);
if (apart.filename != null)
sb.append(' ').append(apart.filename);
}
result.parts = HtmlHelper.fromHtml(sb.toString());
result.html = parts.getHtml(context);
if (result.html != null) {
result.body = HtmlHelper.fromHtml(HtmlHelper.sanitize(context, result.html, false));
if (result.html.length() > 100 * 1024)
result.html = null;
}
return result;
}
}
@Override
protected void onExecuted(Bundle args, Result result) {
tvFrom.setText(result.from);
tvTo.setText(result.to);
tvReplyTo.setText(result.replyto);
tvCc.setText(result.cc);
tvBcc.setText(result.bcc);
tvSubject.setText(result.subject);
tvHeaders.setText(result.headers);
tvParts.setText(result.parts);
tvBody.setText(result.body);
tvHtml.setText(result.html);
grpReady.setVisibility(View.VISIBLE);
}
@Override
protected void onException(Bundle args, @NonNull Throwable ex) {
if (ex instanceof IllegalArgumentException)
Snackbar.make(findViewById(android.R.id.content), ex.getMessage(), Snackbar.LENGTH_LONG).show();
else
Helper.unexpectedError(getSupportFragmentManager(), ex);
}
}.execute(this, args, "eml:decode");
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
MenuInflater inflater = getMenuInflater();
inflater.inflate(R.menu.menu_eml, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(@NonNull MenuItem item) {
switch (item.getItemId()) {
case R.id.menu_save:
onMenuSave();
return true;
default:
return super.onOptionsItemSelected(item);
}
}
private void onMenuSave() {
new SimpleTask<List<EntityAccount>>() {
@Override
protected List<EntityAccount> onExecute(Context context, Bundle args) {
DB db = DB.getInstance(context);
return db.account().getSynchronizingAccounts();
}
@Override
protected void onExecuted(Bundle args, List<EntityAccount> accounts) {
ArrayAdapter<EntityAccount> adapter =
new ArrayAdapter<>(ActivityEML.this, R.layout.spinner_item1, android.R.id.text1);
adapter.addAll(accounts);
new AlertDialog.Builder(ActivityEML.this)
.setAdapter(adapter, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
EntityAccount account = adapter.getItem(which);
Bundle args = new Bundle();
args.putParcelable("uri", uri);
args.putLong("account", account.id);
new SimpleTask<String>() {
@Override
protected void onPreExecute(Bundle args) {
ToastEx.makeText(ActivityEML.this, R.string.title_executing, Toast.LENGTH_LONG).show();
}
@Override
protected String onExecute(Context context, Bundle args) throws Throwable {
Uri uri = args.getParcelable("uri");
long aid = args.getLong("account");
DB db = DB.getInstance(context);
EntityAccount account = db.account().getAccount(aid);
if (account == null)
return null;
EntityFolder inbox = db.folder().getFolderByType(account.id, EntityFolder.INBOX);
if (inbox == null)
throw new IllegalArgumentException(context.getString(R.string.title_no_folder));
ContentResolver resolver = context.getContentResolver();
AssetFileDescriptor descriptor = resolver.openTypedAssetFileDescriptor(uri, "*/*", null);
try (InputStream is = descriptor.createInputStream()) {
Properties props = MessageHelper.getSessionProperties();
Session isession = Session.getInstance(props, null);
MimeMessage imessage = new MimeMessage(isession, is);
try (MailService iservice = new MailService(context, account.getProtocol(), account.realm, account.insecure, true)) {
iservice.setPartialFetch(account.partial_fetch);
iservice.setSeparateStoreConnection();
iservice.connect(account);
IMAPFolder ifolder = (IMAPFolder) iservice.getStore().getFolder(inbox.name);
ifolder.open(Folder.READ_WRITE);
if (ifolder.getPermanentFlags().contains(Flags.Flag.DRAFT))
imessage.setFlag(Flags.Flag.DRAFT, false);
ifolder.appendMessages(new Message[]{imessage});
}
}
return account.name + "/" + inbox.name;
}
@Override
protected void onExecuted(Bundle args, String name) {
ToastEx.makeText(ActivityEML.this, name, Toast.LENGTH_LONG).show();
}
@Override
protected void onException(Bundle args, @NonNull Throwable ex) {
if (ex instanceof IllegalArgumentException)
Snackbar.make(findViewById(android.R.id.content), ex.getMessage(), Snackbar.LENGTH_LONG).show();
else
Helper.unexpectedError(getSupportFragmentManager(), ex);
}
}.execute(ActivityEML.this, args, "eml:store");
}
})
.setNegativeButton(android.R.string.cancel, null)
.show();
}
@Override
protected void onException(Bundle args, @NonNull Throwable ex) {
Helper.unexpectedError(getSupportFragmentManager(), ex);
}
}.execute(this, new Bundle(), "messages:accounts");
}
private class Result {
String from;
String to;
String replyto;
String cc;
String bcc;
String subject;
Spanned headers;
Spanned parts;
Spanned body;
String html;
}
}