From ad791fd8f8c19be95beaf5d1dcc1a38faaa1a08e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Dominik=20Sch=C3=BCrmann?= Date: Tue, 6 May 2014 22:29:57 +0200 Subject: Move logic classes for import into own sub-package --- .../keychain/util/HkpKeyServer.java | 338 --------------------- .../keychain/util/InputData.java | 3 + .../keychain/util/IntentIntegratorSupportV4.java | 2 + .../keychain/util/KeyServer.java | 70 ----- .../keychain/util/KeybaseKeyServer.java | 160 ---------- .../keychain/util/KeychainServiceListener.java | 22 -- .../keychain/util/QrCodeUtils.java | 3 + 7 files changed, 8 insertions(+), 590 deletions(-) delete mode 100644 OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/HkpKeyServer.java delete mode 100644 OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/KeyServer.java delete mode 100644 OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/KeybaseKeyServer.java delete mode 100644 OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/KeychainServiceListener.java (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util') diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/HkpKeyServer.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/HkpKeyServer.java deleted file mode 100644 index b81fba05d..000000000 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/HkpKeyServer.java +++ /dev/null @@ -1,338 +0,0 @@ -/* - * Copyright (C) 2012-2014 Dominik Schürmann - * Copyright (C) 2011-2014 Thialfihar - * Copyright (C) 2011 Senecaso - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package org.sufficientlysecure.keychain.util; - -import org.apache.http.HttpEntity; -import org.apache.http.HttpResponse; -import org.apache.http.HttpStatus; -import org.apache.http.NameValuePair; -import org.apache.http.client.HttpClient; -import org.apache.http.client.entity.UrlEncodedFormEntity; -import org.apache.http.client.methods.HttpGet; -import org.apache.http.client.methods.HttpPost; -import org.apache.http.impl.client.DefaultHttpClient; -import org.apache.http.message.BasicNameValuePair; -import org.apache.http.util.EntityUtils; -import org.sufficientlysecure.keychain.Constants; -import org.sufficientlysecure.keychain.pgp.PgpHelper; -import org.sufficientlysecure.keychain.pgp.PgpKeyHelper; -import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry; - -import java.io.IOException; -import java.io.InputStream; -import java.io.UnsupportedEncodingException; -import java.net.HttpURLConnection; -import java.net.InetAddress; -import java.net.MalformedURLException; -import java.net.URL; -import java.net.URLDecoder; -import java.net.URLEncoder; -import java.net.UnknownHostException; -import java.util.ArrayList; -import java.util.GregorianCalendar; -import java.util.List; -import java.util.Locale; -import java.util.TimeZone; -import java.util.regex.Matcher; -import java.util.regex.Pattern; - -public class HkpKeyServer extends KeyServer { - private static class HttpError extends Exception { - private static final long serialVersionUID = 1718783705229428893L; - private int mCode; - private String mData; - - public HttpError(int code, String data) { - super("" + code + ": " + data); - mCode = code; - mData = data; - } - - public int getCode() { - return mCode; - } - - public String getData() { - return mData; - } - } - - private String mHost; - private short mPort; - - /** - * pub:%keyid%:%algo%:%keylen%:%creationdate%:%expirationdate%:%flags% - *
    - *
  • %keyid% = this is either the fingerprint or the key ID of the key. - * Either the 16-digit or 8-digit key IDs are acceptable, but obviously the fingerprint is best. - *
    • - *
  • %algo% = the algorithm number, (i.e. 1==RSA, 17==DSA, etc). - * See RFC-2440
    • - *
  • %keylen% = the key length (i.e. 1024, 2048, 4096, etc.)
    • - *
  • %creationdate% = creation date of the key in standard - * RFC-2440 form (i.e. number of - * seconds since 1/1/1970 UTC time)
    • - *
  • %expirationdate% = expiration date of the key in standard - * RFC-2440 form (i.e. number of - * seconds since 1/1/1970 UTC time)
    • - *
  • %flags% = letter codes to indicate details of the key, if any. Flags may be in any - * order. The meaning of "disabled" is implementation-specific. Note that individual flags may - * be unimplemented, so the absence of a given flag does not necessarily mean the absence of the - * detail. - *
      - *
    • r == revoked
      • - *
    • d == disabled
      • - *
    • e == expired
      • - *
    - *
    • - *
- * - * @see - * 5.2. Machine Readable Indexes - * in Internet-Draft OpenPGP HTTP Keyserver Protocol Document - */ - public static final Pattern PUB_KEY_LINE = Pattern - .compile("pub:([0-9a-fA-F]+):([0-9]+):([0-9]+):([0-9]+):([0-9]*):([rde]*)[ \n\r]*" // pub line - + "(uid:(.*):([0-9]+):([0-9]*):([rde]*))+", // one or more uid lines - Pattern.CASE_INSENSITIVE); - - /** - * uid:%escaped uid string%:%creationdate%:%expirationdate%:%flags% - *
    - *
  • %escaped uid string% = the user ID string, with HTTP %-escaping for anything that - * isn't 7-bit safe as well as for the ":" character. Any other characters may be escaped, as - * desired.
    • - *
  • %creationdate% = creation date of the key in standard - * RFC-2440 form (i.e. number of - * seconds since 1/1/1970 UTC time)
    • - *
  • %expirationdate% = expiration date of the key in standard - * RFC-2440 form (i.e. number of - * seconds since 1/1/1970 UTC time)
    • - *
  • %flags% = letter codes to indicate details of the key, if any. Flags may be in any - * order. The meaning of "disabled" is implementation-specific. Note that individual flags may - * be unimplemented, so the absence of a given flag does not necessarily mean the absence of - * the detail. - *
      - *
    • r == revoked
      • - *
    • d == disabled
      • - *
    • e == expired
      • - *
    - *
    • - *
- */ - public static final Pattern UID_LINE = Pattern - .compile("uid:(.*):([0-9]+):([0-9]*):([rde]*)", - Pattern.CASE_INSENSITIVE); - - private static final short PORT_DEFAULT = 11371; - - /** - * @param hostAndPort may be just - * "hostname" (eg. "pool.sks-keyservers.net"), then it will - * connect using {@link #PORT_DEFAULT}. However, port may be specified after colon - * ("hostname:port", eg. "p80.pool.sks-keyservers.net:80"). - */ - public HkpKeyServer(String hostAndPort) { - String host = hostAndPort; - short port = PORT_DEFAULT; - final int colonPosition = hostAndPort.lastIndexOf(':'); - if (colonPosition > 0) { - host = hostAndPort.substring(0, colonPosition); - final String portStr = hostAndPort.substring(colonPosition + 1); - port = Short.decode(portStr); - } - mHost = host; - mPort = port; - } - - public HkpKeyServer(String host, short port) { - mHost = host; - mPort = port; - } - - private String query(String request) throws QueryException, HttpError { - InetAddress ips[]; - try { - ips = InetAddress.getAllByName(mHost); - } catch (UnknownHostException e) { - throw new QueryException(e.toString()); - } - for (int i = 0; i < ips.length; ++i) { - try { - String url = "http://" + ips[i].getHostAddress() + ":" + mPort + request; - Log.d(Constants.TAG, "hkp keyserver query: " + url); - URL realUrl = new URL(url); - HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection(); - conn.setConnectTimeout(5000); - conn.setReadTimeout(25000); - conn.connect(); - int response = conn.getResponseCode(); - if (response >= 200 && response < 300) { - return readAll(conn.getInputStream(), conn.getContentEncoding()); - } else { - String data = readAll(conn.getErrorStream(), conn.getContentEncoding()); - throw new HttpError(response, data); - } - } catch (MalformedURLException e) { - // nothing to do, try next IP - } catch (IOException e) { - // nothing to do, try next IP - } - } - - throw new QueryException("querying server(s) for '" + mHost + "' failed"); - } - - @Override - public ArrayList search(String query) throws QueryException, TooManyResponses, - InsufficientQuery { - ArrayList results = new ArrayList(); - - if (query.length() < 3) { - throw new InsufficientQuery(); - } - - String encodedQuery; - try { - encodedQuery = URLEncoder.encode(query, "utf8"); - } catch (UnsupportedEncodingException e) { - return null; - } - String request = "/pks/lookup?op=index&options=mr&search=" + encodedQuery; - - String data; - try { - data = query(request); - } catch (HttpError e) { - if (e.getCode() == 404) { - return results; - } else { - if (e.getData().toLowerCase(Locale.US).contains("no keys found")) { - return results; - } else if (e.getData().toLowerCase(Locale.US).contains("too many")) { - throw new TooManyResponses(); - } else if (e.getData().toLowerCase(Locale.US).contains("insufficient")) { - throw new InsufficientQuery(); - } - } - throw new QueryException("querying server(s) for '" + mHost + "' failed"); - } - - final Matcher matcher = PUB_KEY_LINE.matcher(data); - while (matcher.find()) { - final ImportKeysListEntry entry = new ImportKeysListEntry(); - - entry.setBitStrength(Integer.parseInt(matcher.group(3))); - - final int algorithmId = Integer.decode(matcher.group(2)); - entry.setAlgorithm(PgpKeyHelper.getAlgorithmInfo(algorithmId)); - - // group 1 contains the full fingerprint (v4) or the long key id if available - // see http://bit.ly/1d4bxbk and http://bit.ly/1gD1wwr - String fingerprintOrKeyId = matcher.group(1); - if (fingerprintOrKeyId.length() > 16) { - entry.setFingerPrintHex(fingerprintOrKeyId.toLowerCase(Locale.US)); - entry.setKeyIdHex("0x" + fingerprintOrKeyId.substring(fingerprintOrKeyId.length() - - 16, fingerprintOrKeyId.length())); - } else { - // set key id only - entry.setKeyIdHex("0x" + fingerprintOrKeyId); - } - - final long creationDate = Long.parseLong(matcher.group(4)); - final GregorianCalendar tmpGreg = new GregorianCalendar(TimeZone.getTimeZone("UTC")); - tmpGreg.setTimeInMillis(creationDate * 1000); - entry.setDate(tmpGreg.getTime()); - - entry.setRevoked(matcher.group(6).contains("r")); - - ArrayList userIds = new ArrayList(); - final String uidLines = matcher.group(7); - final Matcher uidMatcher = UID_LINE.matcher(uidLines); - while (uidMatcher.find()) { - String tmp = uidMatcher.group(1).trim(); - if (tmp.contains("%")) { - try { - // converts Strings like "Universit%C3%A4t" to a proper encoding form "Universität". - tmp = (URLDecoder.decode(tmp, "UTF8")); - } catch (UnsupportedEncodingException ignored) { - // will never happen, because "UTF8" is supported - } - } - userIds.add(tmp); - } - entry.setUserIds(userIds); - entry.setPrimaryUserId(userIds.get(0)); - - results.add(entry); - } - return results; - } - - @Override - public String get(String keyIdHex) throws QueryException { - HttpClient client = new DefaultHttpClient(); - try { - String query = "http://" + mHost + ":" + mPort + - "/pks/lookup?op=get&options=mr&search=" + keyIdHex; - Log.d(Constants.TAG, "hkp keyserver get: " + query); - HttpGet get = new HttpGet(query); - HttpResponse response = client.execute(get); - if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) { - throw new QueryException("not found"); - } - - HttpEntity entity = response.getEntity(); - InputStream is = entity.getContent(); - String data = readAll(is, EntityUtils.getContentCharSet(entity)); - Matcher matcher = PgpHelper.PGP_PUBLIC_KEY.matcher(data); - if (matcher.find()) { - return matcher.group(1); - } - } catch (IOException e) { - // nothing to do, better luck on the next keyserver - } finally { - client.getConnectionManager().shutdown(); - } - - return null; - } - - @Override - public void add(String armoredKey) throws AddKeyException { - HttpClient client = new DefaultHttpClient(); - try { - String query = "http://" + mHost + ":" + mPort + "/pks/add"; - HttpPost post = new HttpPost(query); - Log.d(Constants.TAG, "hkp keyserver add: " + query); - List nameValuePairs = new ArrayList(2); - nameValuePairs.add(new BasicNameValuePair("keytext", armoredKey)); - post.setEntity(new UrlEncodedFormEntity(nameValuePairs)); - - HttpResponse response = client.execute(post); - if (response.getStatusLine().getStatusCode() != HttpStatus.SC_OK) { - throw new AddKeyException(); - } - } catch (IOException e) { - // nothing to do, better luck on the next keyserver - } finally { - client.getConnectionManager().shutdown(); - } - } -} diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/InputData.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/InputData.java index 5793d7438..f89ffd139 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/InputData.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/InputData.java @@ -19,6 +19,9 @@ package org.sufficientlysecure.keychain.util; import java.io.InputStream; +/** + * Wrapper to include size besides an InputStream + */ public class InputData { private PositionAwareInputStream mInputStream; private long mSize; diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/IntentIntegratorSupportV4.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/IntentIntegratorSupportV4.java index ad1aab146..68b402124 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/IntentIntegratorSupportV4.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/IntentIntegratorSupportV4.java @@ -22,6 +22,8 @@ import android.support.v4.app.Fragment; import com.google.zxing.integration.android.IntentIntegrator; /** + * Copied from older Barcode Scanner Integration library + * * IntentIntegrator for the V4 Android compatibility package. * * @author Lachezar Dobrev diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/KeyServer.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/KeyServer.java deleted file mode 100644 index 94c02a773..000000000 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/KeyServer.java +++ /dev/null @@ -1,70 +0,0 @@ -/* - * Copyright (C) 2012-2014 Dominik Schürmann - * Copyright (C) 2011-2014 Thialfihar - * Copyright (C) 2011 Senecaso - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package org.sufficientlysecure.keychain.util; - -import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry; - -import java.io.ByteArrayOutputStream; -import java.io.IOException; -import java.io.InputStream; -import java.util.List; - -public abstract class KeyServer { - public static class QueryException extends Exception { - private static final long serialVersionUID = 2703768928624654512L; - - public QueryException(String message) { - super(message); - } - } - - public static class TooManyResponses extends Exception { - private static final long serialVersionUID = 2703768928624654513L; - } - - public static class InsufficientQuery extends Exception { - private static final long serialVersionUID = 2703768928624654514L; - } - - public static class AddKeyException extends Exception { - private static final long serialVersionUID = -507574859137295530L; - } - - abstract List search(String query) throws QueryException, TooManyResponses, - InsufficientQuery; - - abstract String get(String keyIdHex) throws QueryException; - - abstract void add(String armoredKey) throws AddKeyException; - - public static String readAll(InputStream in, String encoding) throws IOException { - ByteArrayOutputStream raw = new ByteArrayOutputStream(); - - byte buffer[] = new byte[1 << 16]; - int n = 0; - while ((n = in.read(buffer)) != -1) { - raw.write(buffer, 0, n); - } - - if (encoding == null) { - encoding = "utf8"; - } - return raw.toString(encoding); - } -} diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/KeybaseKeyServer.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/KeybaseKeyServer.java deleted file mode 100644 index 654fe55f8..000000000 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/KeybaseKeyServer.java +++ /dev/null @@ -1,160 +0,0 @@ -/* - * Copyright (C) 2014 Tim Bray - * - * This program 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. - * - * This program 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 this program. If not, see . - */ - -package org.sufficientlysecure.keychain.util; - -import org.json.JSONArray; -import org.json.JSONException; -import org.json.JSONObject; -import org.sufficientlysecure.keychain.Constants; -import org.sufficientlysecure.keychain.ui.adapter.ImportKeysListEntry; - -import java.net.HttpURLConnection; -import java.net.URL; -import java.net.URLEncoder; -import java.util.ArrayList; -import java.util.GregorianCalendar; -import java.util.TimeZone; -import java.util.WeakHashMap; - -public class KeybaseKeyServer extends KeyServer { - - private WeakHashMap mKeyCache = new WeakHashMap(); - - @Override - public ArrayList search(String query) throws QueryException, TooManyResponses, - InsufficientQuery { - ArrayList results = new ArrayList(); - - JSONObject fromQuery = getFromKeybase("_/api/1.0/user/autocomplete.json?q=", query); - try { - - JSONArray matches = JWalk.getArray(fromQuery, "completions"); - for (int i = 0; i < matches.length(); i++) { - JSONObject match = matches.getJSONObject(i); - - // only list them if they have a key - if (JWalk.optObject(match, "components", "key_fingerprint") != null) { - results.add(makeEntry(match)); - } - } - } catch (Exception e) { - throw new QueryException("Unexpected structure in keybase search result: " + e.getMessage()); - } - - return results; - } - - private JSONObject getUser(String keybaseID) throws QueryException { - try { - return getFromKeybase("_/api/1.0/user/lookup.json?username=", keybaseID); - } catch (Exception e) { - String detail = ""; - if (keybaseID != null) { - detail = ". Query was for user '" + keybaseID + "'"; - } - throw new QueryException(e.getMessage() + detail); - } - } - - private ImportKeysListEntry makeEntry(JSONObject match) throws QueryException, JSONException { - - String keybaseID = JWalk.getString(match, "components", "username", "val"); - String key_fingerprint = JWalk.getString(match, "components", "key_fingerprint", "val"); - key_fingerprint = key_fingerprint.replace(" ", "").toUpperCase(); - match = getUser(keybaseID); - - final ImportKeysListEntry entry = new ImportKeysListEntry(); - - // TODO: Fix; have suggested keybase provide this value to avoid search-time crypto calls - entry.setBitStrength(4096); - entry.setAlgorithm("RSA"); - entry.setKeyIdHex("0x" + key_fingerprint); - entry.setRevoked(false); - - // ctime - final long creationDate = JWalk.getLong(match, "them", "public_keys", "primary", "ctime"); - final GregorianCalendar tmpGreg = new GregorianCalendar(TimeZone.getTimeZone("UTC")); - tmpGreg.setTimeInMillis(creationDate * 1000); - entry.setDate(tmpGreg.getTime()); - - // key bits - // we have to fetch the user object to construct the search-result list, so we might as - // well (weakly) remember the key, in case they try to import it - mKeyCache.put(keybaseID, JWalk.getString(match,"them", "public_keys", "primary", "bundle")); - - // String displayName = JWalk.getString(match, "them", "profile", "full_name"); - ArrayList userIds = new ArrayList(); - String name = "keybase.io/" + keybaseID + " <" + keybaseID + "@keybase.io>"; - userIds.add(name); - userIds.add(keybaseID); - entry.setUserIds(userIds); - entry.setPrimaryUserId(name); - return entry; - } - - private JSONObject getFromKeybase(String path, String query) throws QueryException { - try { - String url = "https://keybase.io/" + path + URLEncoder.encode(query, "utf8"); - Log.d(Constants.TAG, "keybase query: " + url); - - URL realUrl = new URL(url); - HttpURLConnection conn = (HttpURLConnection) realUrl.openConnection(); - conn.setConnectTimeout(5000); // TODO: Reasonable values for keybase - conn.setReadTimeout(25000); - conn.connect(); - int response = conn.getResponseCode(); - if (response >= 200 && response < 300) { - String text = readAll(conn.getInputStream(), conn.getContentEncoding()); - try { - JSONObject json = new JSONObject(text); - if (JWalk.getInt(json, "status", "code") != 0) { - throw new QueryException("Keybase autocomplete search failed"); - } - return json; - } catch (JSONException e) { - throw new QueryException("Keybase.io query returned broken JSON"); - } - } else { - String message = readAll(conn.getErrorStream(), conn.getContentEncoding()); - throw new QueryException("Keybase.io query error (status=" + response + - "): " + message); - } - } catch (Exception e) { - throw new QueryException("Keybase.io query error"); - } - } - - @Override - public String get(String id) throws QueryException { - String key = mKeyCache.get(id); - if (key == null) { - try { - JSONObject user = getUser(id); - key = JWalk.getString(user, "them", "public_keys", "primary", "bundle"); - } catch (Exception e) { - throw new QueryException(e.getMessage()); - } - } - return key; - } - - @Override - public void add(String armoredKey) throws AddKeyException { - throw new AddKeyException(); - } -} \ No newline at end of file diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/KeychainServiceListener.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/KeychainServiceListener.java deleted file mode 100644 index b205bd556..000000000 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/KeychainServiceListener.java +++ /dev/null @@ -1,22 +0,0 @@ -/* - * Copyright (C) 2014 Dominik Schürmann - * - * This program 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. - * - * This program 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 this program. If not, see . - */ - -package org.sufficientlysecure.keychain.util; - -public interface KeychainServiceListener { - boolean hasServiceStopped(); -} diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/QrCodeUtils.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/QrCodeUtils.java index cd9e56394..28e567d76 100644 --- a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/QrCodeUtils.java +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/util/QrCodeUtils.java @@ -32,6 +32,9 @@ import org.sufficientlysecure.keychain.Constants; import java.util.Hashtable; +/** + * Copied from Bitcoin Wallet + */ public class QrCodeUtils { public static final QRCodeWriter QR_CODE_WRITER = new QRCodeWriter(); -- cgit v1.2.3