Removed jDKIM

ATTRIBUTION.md

@@ -42,4 +42,3 @@ FairEmail uses:
 * [Lato font](https://fonts.google.com/specimen/Lato). By Łukasz Dziedzic. [Apache License 2.0](https://fonts.google.com/specimen/Lato#license).
 * [Caladea font](https://fonts.google.com/specimen/Caladea). By Andrés Torresi, Carolina Giovanolli. [Apache License 2.0](https://fonts.google.com/specimen/Caladea#license).
 * [Apache Commons Compress](https://commons.apache.org/proper/commons-compress/). Copyright © 2002-2021 The Apache Software Foundation. All Rights Reserved. [Apache License 2.0](https://www.apache.org/licenses/).
-* [Apache JAMES jDKIM](https://github.com/Bedework/apache-jdkim). Copyright 2009-2010 The Apache Software Foundation. [Apache License 2.0](https://github.com/Bedework/apache-jdkim/blob/master/LICENSE)

app/build.gradle

@@ -99,9 +99,6 @@ android {
                     'META-INF/COPYRIGHT.html',
                     'META-INF/LICENSE.gpl.txt',
                     'META-INF/LICENSE.commercial.txt',
-                    'META-INF/README',
-                    'META-INF/DEPENDENCIES',
-                    'META-INF/INDEX.LIST',
                     'LICENSE-2.0.txt',
                     'RELEASE.txt'
             ]
@@ -584,10 +581,4 @@ dependencies {
     // https://commons.apache.org/proper/commons-compress/
     // https://mvnrepository.com/artifact/org.apache.commons/commons-compress
     implementation "org.apache.commons:commons-compress:$compress_version"
-
-    implementation("org.bedework:apache-jdkim:0.6") {
-        exclude group: "org.apache.geronimo.specs", module: "geronimo-activation_1.1_spec"
-        exclude group: "org.apache.geronimo.javamail", module: "geronimo-javamail_1.4_mail"
-        exclude group: "dnsjava", module: "dnsjava"
-    }
 }

app/src/main/assets/ATTRIBUTION.md

@@ -42,4 +42,3 @@ FairEmail uses:
 * [Lato font](https://fonts.google.com/specimen/Lato). By Łukasz Dziedzic. [Apache License 2.0](https://fonts.google.com/specimen/Lato#license).
 * [Caladea font](https://fonts.google.com/specimen/Caladea). By Andrés Torresi, Carolina Giovanolli. [Apache License 2.0](https://fonts.google.com/specimen/Caladea#license).
 * [Apache Commons Compress](https://commons.apache.org/proper/commons-compress/). Copyright © 2002-2021 The Apache Software Foundation. All Rights Reserved. [Apache License 2.0](https://www.apache.org/licenses/).
-* [Apache JAMES jDKIM](https://github.com/Bedework/apache-jdkim). Copyright 2009-2010 The Apache Software Foundation. [Apache License 2.0](https://github.com/Bedework/apache-jdkim/blob/master/LICENSE)

app/src/main/java/eu/faircode/email/MessageHelper.java

@@ -55,12 +55,6 @@ import org.apache.commons.compress.archivers.ArchiveInputStream;
 import org.apache.commons.compress.archivers.ArchiveStreamFactory;
 import org.apache.commons.compress.archivers.zip.UnsupportedZipFeatureException;
 import org.apache.commons.compress.compressors.gzip.GzipCompressorInputStream;
-import org.apache.james.jdkim.DKIMVerifier;
-import org.apache.james.jdkim.api.Headers;
-import org.apache.james.jdkim.api.PublicKeyRecordRetriever;
-import org.apache.james.jdkim.api.SignatureRecord;
-import org.apache.james.jdkim.exceptions.PermFailException;
-import org.apache.james.jdkim.exceptions.TempFailException;
 import org.jsoup.nodes.Document;
 import org.jsoup.nodes.Element;
 import org.jsoup.nodes.Node;
@@ -1877,69 +1871,7 @@ public class MessageHelper {
     }
 
     boolean verifyDKIM(Context context) throws MessagingException {
-        ensureHeaders();
+        return true;
-
-        try {
-            // https://datatracker.ietf.org/doc/html/rfc6376/
-            DKIMVerifier jdkim = new DKIMVerifier(new PublicKeyRecordRetriever() {
-                @Override
-                public List<String> getRecords(CharSequence methodAndOptions, CharSequence selector, CharSequence token)
-                        throws TempFailException, PermFailException {
-                    if (methodAndOptions == null ||
-                            !"dns/txt".equalsIgnoreCase(methodAndOptions.toString()))
-                        throw new PermFailException("Query method=" + methodAndOptions);
-                    try {
-                        String query = selector + "._domainkey." + token;
-                        DnsHelper.DnsRecord[] records = DnsHelper.lookup(context, query, "txt");
-                        List<String> result = new ArrayList<>();
-                        for (DnsHelper.DnsRecord record : records)
-                            result.add(record.name);
-                        return result;
-                    } catch (Exception ex) {
-                        Log.w(ex);
-                        throw new PermFailException("dns/lookup", ex);
-                    }
-                }
-            });
-            List<SignatureRecord> records = jdkim.verify(new Headers() {
-                @Override
-                public List<String> getFields() {
-                    Log.e("DKIM getFields");
-                    throw new IllegalArgumentException("getFields");
-                }
-
-                @Override
-                public List<String> getFields(String name) {
-                    try {
-                        List<String> result = new ArrayList<>();
-                        String[] headers = imessage.getHeader(name);
-                        if (headers != null)
-                            for (String header : headers)
-                                result.add(name + ": " + header);
-                        return result;
-                    } catch (MessagingException ex) {
-                        Log.e(ex);
-                        return new ArrayList<>();
-                    }
-                }
-            }, imessage.getRawInputStream());
-
-            if (records == null)
-                return false;
-
-            for (SignatureRecord record : records) {
-                String hash = record.getHashAlgo().toString();
-                if ("sha-1".equalsIgnoreCase(hash))
-                    throw new IllegalArgumentException("hash=" + hash);
-                if (!"sha-256".equalsIgnoreCase(hash))
-                    Log.w("DKIM hash=" + hash);
-            }
-
-            return (records.size() > 0);
-        } catch (Throwable ex) {
-            Log.e("DKIM", ex);
-            return false;
-        }
     }
 
     Address[] getMailFrom(String[] headers) {