show key fingerprint in key list

Fixes issue 76

res/values/strings.xml

@@ -139,6 +139,7 @@
     <string name="expired">expired</string>
     <string name="notValid">not valid</string>
     <string name="nKeyServers">%s key server(s)</string>
+    <string name="fingerprint">fingerprint</string>
 
     <!-- choice_lowerCase: capitalized first word, no punctuation -->
     <string name="choice_none">None</string>

src/org/thialfihar/android/apg/Apg.java

@@ -1031,6 +1031,34 @@ public class Apg {
     }
 
     public static String getFingerPrint(long keyId) {
+        PGPPublicKey key = Apg.getPublicKey(keyId);
+        if (key == null) {
+            PGPSecretKey secretKey = Apg.getSecretKey(keyId);
+            if (secretKey == null) {
+                return "";
+            }
+            key = secretKey.getPublicKey();
+        }
+
+        String fingerPrint = "";
+        byte fp[] = key.getFingerprint();
+        for (int i = 0; i < fp.length; ++i) {
+            if (i != 0 && i % 10 == 0) {
+                fingerPrint += "  ";
+            } else if (i != 0 && i % 2 == 0) {
+                fingerPrint += " ";
+            }
+            String chunk = Integer.toHexString((((int)fp[i]) + 256) % 256).toUpperCase();
+            while (chunk.length() < 2) {
+                chunk = "0" + chunk;
+            }
+            fingerPrint += chunk;
+        }
+
+        return fingerPrint;
+    }
+
+    public static String getSmallFingerPrint(long keyId) {
         String fingerPrint = Long.toHexString(keyId & 0xffffffffL).toUpperCase();
         while (fingerPrint.length() < 8) {
             fingerPrint = "0" + fingerPrint;
@@ -1039,7 +1067,7 @@ public class Apg {
     }
 
     public static String keyToHex(long keyId) {
-        return getFingerPrint(keyId >> 32) + getFingerPrint(keyId);
+        return getSmallFingerPrint(keyId >> 32) + getSmallFingerPrint(keyId);
     }
 
     public static long keyFromHex(String data) {

src/org/thialfihar/android/apg/DecryptActivity.java

@@ -620,7 +620,7 @@ public class DecryptActivity extends BaseActivity {
         if (data.getBoolean(Apg.EXTRA_SIGNATURE)) {
             String userId = data.getString(Apg.EXTRA_SIGNATURE_USER_ID);
             mSignatureKeyId = data.getLong(Apg.EXTRA_SIGNATURE_KEY_ID);
-            mUserIdRest.setText("id: " + Apg.getFingerPrint(mSignatureKeyId));
+            mUserIdRest.setText("id: " + Apg.getSmallFingerPrint(mSignatureKeyId));
             if (userId == null) {
                 userId = getResources().getString(R.string.unknownUserId);
             }
@@ -727,7 +727,7 @@ public class DecryptActivity extends BaseActivity {
 
                 alert.setIcon(android.R.drawable.ic_dialog_alert);
                 alert.setTitle(R.string.title_unknownSignatureKey);
-                alert.setMessage(getString(R.string.lookupUnknownKey, Apg.getFingerPrint(mUnknownSignatureKeyId)));
+                alert.setMessage(getString(R.string.lookupUnknownKey, Apg.getSmallFingerPrint(mUnknownSignatureKeyId)));
 
                 alert.setPositiveButton(android.R.string.ok,
                                         new DialogInterface.OnClickListener() {

src/org/thialfihar/android/apg/HkpKeyServer.java

@@ -149,7 +149,7 @@ public class HkpKeyServer extends KeyServer {
             info.size = Integer.parseInt(matcher.group(1));
             info.algorithm = matcher.group(2);
             info.keyId = Apg.keyFromHex(matcher.group(3));
-            info.fingerPrint = Apg.getFingerPrint(info.keyId);
+            info.fingerPrint = Apg.getSmallFingerPrint(info.keyId);
             String chunks[] = matcher.group(4).split("-");
             info.date = new GregorianCalendar(Integer.parseInt(chunks[0]),
                                               Integer.parseInt(chunks[1]),

src/org/thialfihar/android/apg/KeyListActivity.java

@@ -479,6 +479,7 @@ public class KeyListActivity extends BaseActivity {
         private class KeyChild {
             public static final int KEY = 0;
             public static final int USER_ID = 1;
+            public static final int FINGER_PRINT = 2;
 
             public int type;
             public String userId;
@@ -488,9 +489,11 @@ public class KeyListActivity extends BaseActivity {
             public int keySize;
             public boolean canSign;
             public boolean canEncrypt;
+            public String fingerPrint;
 
             public KeyChild(long keyId, boolean isMasterKey, int algorithm, int keySize,
                             boolean canSign, boolean canEncrypt) {
+                this.type = KEY;
                 this.keyId = keyId;
                 this.isMasterKey = isMasterKey;
                 this.algorithm = algorithm;
@@ -503,6 +506,11 @@ public class KeyListActivity extends BaseActivity {
                 type = USER_ID;
                 this.userId = userId;
             }
+
+            public KeyChild(String fingerPrint, boolean isFingerPrint) {
+                type = FINGER_PRINT;
+                this.fingerPrint = fingerPrint;
+            }
         }
 
         public KeyListAdapter(Context context, String searchString) {
@@ -604,18 +612,21 @@ public class KeyListActivity extends BaseActivity {
                     new String[] { mCursor.getString(0) },
                     null, null, Keys.RANK + " ASC");
 
-            long masterKeyId = -1;
+            int masterKeyId = -1;
+            long fingerPrintId = -1;
             for (int i = 0; i < c.getCount(); ++i) {
                 c.moveToPosition(i);
                 children.add(new KeyChild(c.getLong(1), c.getInt(2) == 1, c.getInt(3), c.getInt(4),
                                           c.getInt(5) == 1, c.getInt(6) == 1));
                 if (i == 0) {
                     masterKeyId = c.getInt(0);
+                    fingerPrintId = c.getLong(1);
                 }
             }
             c.close();
 
             if (masterKeyId != -1) {
+                children.insertElementAt(new KeyChild(Apg.getFingerPrint(fingerPrintId), true), 0);
                 c = mDatabase.query(UserIds.TABLE_NAME,
                          new String[] {
                              UserIds.USER_ID, // 0
@@ -725,7 +736,7 @@ public class KeyListActivity extends BaseActivity {
                     }
 
                     TextView keyId = (TextView) view.findViewById(R.id.keyId);
-                    String keyIdStr = Apg.getFingerPrint(child.keyId);
+                    String keyIdStr = Apg.getSmallFingerPrint(child.keyId);
                     keyId.setText(keyIdStr);
                     TextView keyDetails = (TextView) view.findViewById(R.id.keyDetails);
                     String algorithmStr = Apg.getAlgorithmInfo(child.algorithm, child.keySize);
@@ -749,6 +760,14 @@ public class KeyListActivity extends BaseActivity {
                     userId.setText(child.userId);
                     break;
                 }
+
+                case KeyChild.FINGER_PRINT: {
+                    view = mInflater.inflate(R.layout.key_list_child_item_user_id, null);
+                    TextView userId = (TextView) view.findViewById(R.id.userId);
+                    userId.setText(getString(R.string.fingerprint) + ":\n" +
+                                   child.fingerPrint.replace("  ", "\n"));
+                    break;
+                }
             }
             return view;
         }

src/org/thialfihar/android/apg/KeyServerQueryActivity.java

@@ -253,7 +253,7 @@ public class KeyServerQueryActivity extends BaseActivity {
                 mainUserId.setText(userId);
             }
 
-            keyId.setText(Apg.getFingerPrint(keyInfo.keyId));
+            keyId.setText(Apg.getSmallFingerPrint(keyInfo.keyId));
 
             if (mainUserIdRest.getText().length() == 0) {
                 mainUserIdRest.setVisibility(View.GONE);

src/org/thialfihar/android/apg/SelectPublicKeyListAdapter.java

@@ -187,7 +187,7 @@ public class SelectPublicKeyListAdapter extends BaseAdapter {
         }
 
         long masterKeyId = mCursor.getLong(1); // MASTER_KEY_ID
-        keyId.setText(Apg.getFingerPrint(masterKeyId));
+        keyId.setText(Apg.getSmallFingerPrint(masterKeyId));
 
         if (mainUserIdRest.getText().length() == 0) {
             mainUserIdRest.setVisibility(View.GONE);

src/org/thialfihar/android/apg/SelectSecretKeyListAdapter.java

@@ -146,7 +146,7 @@ public class SelectSecretKeyListAdapter extends BaseAdapter {
         }
 
         long masterKeyId = mCursor.getLong(1); // MASTER_KEY_ID
-        keyId.setText(Apg.getFingerPrint(masterKeyId));
+        keyId.setText(Apg.getSmallFingerPrint(masterKeyId));
 
         if (mainUserIdRest.getText().length() == 0) {
             mainUserIdRest.setVisibility(View.GONE);

src/org/thialfihar/android/apg/ui/widget/KeyEditor.java

@@ -141,8 +141,8 @@ public class KeyEditor extends LinearLayout implements Editor, OnClickListener {
         }
 
         mAlgorithm.setText(Apg.getAlgorithmInfo(key));
-        String keyId1Str = Apg.getFingerPrint(key.getKeyID());
+        String keyId1Str = Apg.getSmallFingerPrint(key.getKeyID());
-        String keyId2Str = Apg.getFingerPrint(key.getKeyID() >> 32);
+        String keyId2Str = Apg.getSmallFingerPrint(key.getKeyID() >> 32);
         mKeyId.setText(keyId1Str + " " + keyId2Str);
 
         Vector<Choice> choices = new Vector<Choice>();