#1141 Add TOTP key field to database and PlayerAuth

- Add new field for storing TOTP key
- Implement data source methods for manipulation of its value

src/test/java/fr/xephi/authme/datasource/AbstractDataSourceIntegrationTest.java

@@ -103,12 +103,14 @@ public abstract class AbstractDataSourceIntegrationTest {
         assertThat(bobbyAuth, hasRegistrationInfo("127.0.4.22", 1436778723L));
         assertThat(bobbyAuth.getLastLogin(), equalTo(1449136800L));
         assertThat(bobbyAuth.getPassword(), equalToHash("$SHA$11aa0706173d7272$dbba966"));
+        assertThat(bobbyAuth.getTotpKey(), equalTo("JBSWY3DPEHPK3PXP"));
 
         assertThat(userAuth, hasAuthBasicData("user", "user", "user@example.org", "34.56.78.90"));
         assertThat(userAuth, hasAuthLocation(124.1, 76.3, -127.8, "nether", 0.23f, 4.88f));
         assertThat(userAuth, hasRegistrationInfo(null, 0));
         assertThat(userAuth.getLastLogin(), equalTo(1453242857L));
         assertThat(userAuth.getPassword(), equalToHash("b28c32f624a4eb161d6adc9acb5bfc5b", "f750ba32"));
+        assertThat(userAuth.getTotpKey(), nullValue());
     }
 
     @Test
@@ -494,4 +496,33 @@ public abstract class AbstractDataSourceIntegrationTest {
             contains("user24", "user20", "user22", "user29", "user28",
                 "user16", "user18", "user12", "user14", "user11"));
     }
+
+    @Test
+    public void shouldSetTotpKey() {
+        // given
+        DataSource dataSource = getDataSource();
+        String newTotpKey = "My new TOTP key";
+
+        // when
+        dataSource.setTotpKey("BObBy", newTotpKey);
+        dataSource.setTotpKey("does-not-exist", "bogus");
+
+        // then
+        assertThat(dataSource.getAuth("bobby").getTotpKey(), equalTo(newTotpKey));
+    }
+
+    @Test
+    public void shouldRemoveTotpKey() {
+        // given
+        DataSource dataSource = getDataSource();
+
+        // when
+        dataSource.removeTotpKey("BoBBy");
+        dataSource.removeTotpKey("user");
+        dataSource.removeTotpKey("does-not-exist");
+
+        // then
+        assertThat(dataSource.getAuth("bobby").getTotpKey(), nullValue());
+        assertThat(dataSource.getAuth("user").getTotpKey(), nullValue());
+    }
 }