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Code Issues Releases Wiki Activity

Experiment: LanguageTool support

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M66B 2022-04-27 17:18:08 +02:00
parent 62a852e423
commit 44c5064920
3 changed files with 180 additions and 1 deletions
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2
PRIVACY.md
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@ -31,7 +31,7 @@ FairEmail **can use** these services if they are explicitly enabled (off by defa
* [Spamcop](https://www.spamcop.net/) – [Privacy policy](https://www.spamcop.net/fom-serve/cache/168.html)
* [Barracuda](https://www.barracudacentral.org/rbl/how-to-use) – [Privacy policy](https://www.barracuda.com/company/legal/trust-center/data-privacy/privacy-policy)
* [Thunderbird autoconfiguration](https://developer.mozilla.org/docs/Mozilla/Thunderbird/Autoconfiguration) – [Privacy policy](https://www.mozilla.org/privacy/)
* [LanguageTool](https://languagetool.org/) – [Privacy policy](https://languagetool.org/legal/privacy)
FairEmail **can access** the websites at the domain names of email addresses
if [Brand Indicators for Message Identification](https://en.wikipedia.org/wiki/Brand_Indicators_for_Message_Identification) (BIMI)

57
app/src/main/java/eu/faircode/email/FragmentCompose.java
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@ -81,6 +81,7 @@ import android.text.style.ImageSpan;
import android.text.style.ParagraphStyle;
import android.text.style.QuoteSpan;
import android.text.style.RelativeSizeSpan;
import android.text.style.SuggestionSpan;
import android.text.style.URLSpan;
import android.util.LogPrinter;
import android.util.Pair;
@ -1814,6 +1815,15 @@ public class FragmentCompose extends FragmentBase {
for (int i = 0; i < m.size(); i++)
bottom_navigation.findViewById(m.getItem(i).getItemId()).setOnLongClickListener(null);
if (!BuildConfig.PLAY_STORE_RELEASE)
bottom_navigation.findViewById(R.id.action_save).setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View view) {
onLanguageTool();
return true;
}
});
bottom_navigation.findViewById(R.id.action_send).setOnLongClickListener(new View.OnLongClickListener() {
@Override
public boolean onLongClick(View v) {
@ -2379,6 +2389,53 @@ public class FragmentCompose extends FragmentBase {
popupMenu.showWithIcons(context, anchor);
}
private void onLanguageTool() {
etBody.clearComposingText();
Bundle args = new Bundle();
args.putCharSequence("text", etBody.getText());
new SimpleTask<List<LanguageTool.Suggestion>>() {
@Override
protected void onPreExecute(Bundle args) {
setBusy(true);
}
@Override
protected void onPostExecute(Bundle args) {
setBusy(false);
}
@Override
protected List<LanguageTool.Suggestion> onExecute(Context context, Bundle args) throws Throwable {
CharSequence text = args.getCharSequence("text").toString();
return LanguageTool.getSuggestions(context, text);
}
@Override
protected void onExecuted(Bundle args, List<LanguageTool.Suggestion> suggestions) {
// https://developer.android.com/reference/android/text/style/SuggestionSpan
final Context context = getContext();
Editable edit = etBody.getText();
for (LanguageTool.Suggestion suggestion : suggestions) {
Log.i("LT suggestion=" + suggestion);
SuggestionSpan span = new SuggestionSpan(context,
suggestion.replacements.toArray(new String[0]),
SuggestionSpan.FLAG_MISSPELLED);
int start = suggestion.offset;
int end = start + suggestion.length;
edit.setSpan(span, start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE | Spanned.SPAN_COMPOSING);
}
}
@Override
protected void onException(Bundle args, Throwable ex) {
Log.unexpectedError(getParentFragmentManager(), ex);
}
}.execute(this, args, "compose:lt");
}
private boolean onActionStyle(int action, View anchor) {
Log.i("Style action=" + action);
return StyleHelper.apply(action, getViewLifecycleOwner(), anchor, etBody);

122
app/src/main/java/eu/faircode/email/LanguageTool.java Normal file
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@ -0,0 +1,122 @@
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 2018-2022 by Marcel Bokhorst (M66B)
*/
import android.content.Context;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.net.URL;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.util.ArrayList;
import java.util.List;
import javax.net.ssl.HttpsURLConnection;
public class LanguageTool {
private static final int LT_TIMEOUT = 20; // seconds
private static final String LT_URI = "https://api.languagetool.org/v2/";
static List<Suggestion> getSuggestions(Context context, CharSequence text) throws IOException, JSONException {
// https://languagetool.org/http-api/swagger-ui/#!/default/post_check
String request =
"text=" + URLEncoder.encode(text.toString(), StandardCharsets.UTF_8.name()) +
"&language=auto";
URL url = new URL(LT_URI + "check");
HttpsURLConnection connection = (HttpsURLConnection) url.openConnection();
connection.setRequestMethod("POST");
connection.setDoOutput(true);
connection.setReadTimeout(LT_TIMEOUT * 1000);
connection.setConnectTimeout(LT_TIMEOUT * 1000);
connection.setRequestProperty("User-Agent", WebViewEx.getUserAgent(context));
connection.setRequestProperty("Accept", "application/json");
connection.setRequestProperty("Content-Length", Integer.toString(request.length()));
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
connection.connect();
try {
connection.getOutputStream().write(request.getBytes());
int status = connection.getResponseCode();
if (status != HttpsURLConnection.HTTP_OK) {
String error = "Error " + status + ": " + connection.getResponseMessage();
try {
InputStream is = connection.getErrorStream();
if (is != null)
error += "\n" + Helper.readStream(is);
} catch (Throwable ex) {
Log.w(ex);
}
throw new FileNotFoundException(error);
}
String response = Helper.readStream(connection.getInputStream());
List<Suggestion> result = new ArrayList<>();
JSONObject jroot = new JSONObject(response);
JSONArray jmatches = jroot.getJSONArray("matches");
for (int i = 0; i < jmatches.length(); i++) {
JSONObject jmatch = jmatches.getJSONObject(i);
Suggestion suggestion = new Suggestion();
suggestion.title = jmatch.getString("shortMessage");
suggestion.description = jmatch.getString("message");
suggestion.offset = jmatch.getInt("offset");
suggestion.length = jmatch.getInt("length");
JSONArray jreplacements = jmatch.getJSONArray("replacements");
suggestion.replacements = new ArrayList<>();
for (int j = 0; j < jreplacements.length(); j++) {
JSONObject jreplacement = jreplacements.getJSONObject(j);
suggestion.replacements.add(jreplacement.getString("value"));
}
if (suggestion.replacements.size() > 0)
result.add(suggestion);
}
return result;
} finally {
connection.disconnect();
}
}
static class Suggestion {
String title; // shortMessage
String description; // message
int offset;
int length;
List<String> replacements;
@Override
public String toString() {
return title;
}
}
}