Test & Refactor OpenPgpUtils

k9mail/src/androidTest/java/com/fsck/k9/crypto/OpenPgpUtilsTest.java

@@ -0,0 +1,54 @@
+package com.fsck.k9.crypto;
+
+
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.openintents.openpgp.util.OpenPgpUtils;
+
+import static junit.framework.Assert.assertEquals;
+import static junit.framework.Assert.assertNull;
+
+
+@RunWith(AndroidJUnit4.class)
+public class OpenPgpUtilsTest {
+
+    @Test
+    public void splitCompleteUserIdShouldReturnAll3Components() throws Exception {
+        OpenPgpUtils.UserInfo info = OpenPgpUtils.splitUserId("Max Mustermann (this is a comment) <max@example.com>");
+
+        assertEquals("Max Mustermann", info.name);
+        assertEquals("this is a comment", info.comment);
+        assertEquals("max@example.com", info.email);
+    }
+
+
+    @Test
+    public void splitUserIdWithAllButCommentShouldReturnNameAndEmail() throws Exception {
+        OpenPgpUtils.UserInfo info = OpenPgpUtils.splitUserId("Max Mustermann <max@example.com>");
+
+        assertEquals("Max Mustermann", info.name);
+        assertNull(info.comment);
+        assertEquals("max@example.com", info.email);
+    }
+
+    @Test
+    public void splitUserIdWithAllButEmailShouldReturnNameAndComment() throws Exception {
+        OpenPgpUtils.UserInfo info = OpenPgpUtils.splitUserId("Max Mustermann (this is a comment)");
+
+        assertEquals(info.name, "Max Mustermann");
+        assertEquals(info.comment, "this is a comment");
+        assertNull(info.email);
+    }
+
+
+    @Test
+    public void splitUserIdWithOnlyNameShouldReturnNameOnly() throws Exception {
+        OpenPgpUtils.UserInfo info = OpenPgpUtils.splitUserId("Max Mustermann [this is a nothing]");
+
+        assertEquals("Max Mustermann", info.name);
+        assertNull(info.comment);
+        assertNull(info.email);
+    }
+}

k9mail/src/main/java/com/fsck/k9/ui/messageview/OpenPgpHeaderView.java

@@ -154,14 +154,14 @@ public class OpenPgpHeaderView extends LinearLayout {
     }
 
     private void setUserId(OpenPgpSignatureResult signatureResult) {
-        String[] splitUserId = OpenPgpUtils.splitUserId(signatureResult.getPrimaryUserId());
+        final OpenPgpUtils.UserInfo userInfo = OpenPgpUtils.splitUserId(signatureResult.getPrimaryUserId());
-        if (splitUserId[0] != null) {
+        if (userInfo.name != null) {
-            mResultSignatureName.setText(splitUserId[0]);
+            mResultSignatureName.setText(userInfo.name);
         } else {
             mResultSignatureName.setText(R.string.openpgp_result_no_name);
         }
-        if (splitUserId[1] != null) {
+        if (userInfo.email != null) {
-            mResultSignatureEmail.setText(splitUserId[1]);
+            mResultSignatureEmail.setText(userInfo.email);
         } else {
             mResultSignatureEmail.setText(R.string.openpgp_result_no_email);
         }

plugins/openpgp-api-library/src/org/openintents/openpgp/util/OpenPgpUtils.java

@@ -16,15 +16,16 @@
 
 package org.openintents.openpgp.util;
 
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.ResolveInfo;
+import android.text.TextUtils;
+
 import java.util.List;
 import java.util.Locale;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import android.content.Context;
-import android.content.Intent;
-import android.content.pm.ResolveInfo;
-
 public class OpenPgpUtils {
 
     public static final Pattern PGP_MESSAGE = Pattern.compile(
@@ -55,11 +56,7 @@ public class OpenPgpUtils {
     public static boolean isAvailable(Context context) {
         Intent intent = new Intent(OpenPgpApi.SERVICE_INTENT);
         List<ResolveInfo> resInfo = context.getPackageManager().queryIntentServices(intent, 0);
-        if (!resInfo.isEmpty()) {
+        return !resInfo.isEmpty();
-            return true;
-        } else {
-            return false;
-        }
     }
 
     public static String convertKeyIdToHex(long keyId) {
@@ -74,38 +71,36 @@ public class OpenPgpUtils {
         return hexString;
     }
 
-    private static final Pattern USER_ID_PATTERN = Pattern.compile("^(.*?)(?: \\((.*)\\))?(?: <(.*)>)?$");
+    private static final Pattern USER_ID_PATTERN = Pattern.compile("^(.*?)(?: (\\[.*\\]))?(?: \\((.*)\\))?(?: <(.*)>)?$");
 
     /**
      * Splits userId string into naming part, email part, and comment part
+     * <p/>
+     * User ID matching:
+     * http://fiddle.re/t4p6f
      *
      * @param userId
-     * @return array with naming (0), email (1), comment (2)
+     * @return theParsedUserInfo
      */
-    public static String[] splitUserId(String userId) {
+    public static UserInfo splitUserId(final String userId) {
-        String[] result = new String[]{null, null, null};
+        if (!TextUtils.isEmpty(userId)) {
-
+            final Matcher matcher = USER_ID_PATTERN.matcher(userId);
-        if (userId == null || userId.equals("")) {
+            if (matcher.matches()) {
-            return result;
+                return new UserInfo(matcher.group(1), matcher.group(4), matcher.group(3));
+            }
         }
+        return new UserInfo(null, null, null);
+    }
 
-        /*
+    public static class UserInfo {
-         * User ID matching:
+        public final String name;
-         * http://fiddle.re/t4p6f
+        public final String email;
-         *
+        public final String comment;
-         * test cases:
+
-         * "Max Mustermann (this is a comment) <max@example.com>"
+        public UserInfo(String name, String email, String comment) {
-         * "Max Mustermann <max@example.com>"
+            this.name = name;
-         * "Max Mustermann (this is a comment)"
+            this.email = email;
-         * "Max Mustermann [this is nothing]"
+            this.comment = comment;
-         */
-        Matcher matcher = USER_ID_PATTERN.matcher(userId);
-        if (matcher.matches()) {
-            result[0] = matcher.group(1);
-            result[1] = matcher.group(3);
-            result[2] = matcher.group(2);
         }
-
-        return result;
     }
 }