Use clientlogin API module

This is the first step to allowing 2 factor authentication #328.
This uses the new API module clientlogin instead of the login module.

We still report the same set of errors in a 'nice' way with real
error messages, how ever there are lots more that can probably be
handled, for example #507.

app/src/main/java/fr/free/nrw/commons/CommonsApplication.java

@@ -32,7 +32,6 @@ import org.apache.http.impl.client.DefaultHttpClient;
 import org.apache.http.impl.conn.tsccm.ThreadSafeClientConnManager;
 import org.apache.http.params.BasicHttpParams;
 import org.apache.http.params.CoreProtocolPNames;
-import org.mediawiki.api.MWApi;
 
 import java.io.IOException;
 

app/src/main/java/fr/free/nrw/commons/MWApi.java

@@ -0,0 +1,58 @@
+package fr.free.nrw.commons;
+
+import java.io.IOException;
+
+import org.apache.http.impl.client.AbstractHttpClient;
+import org.mediawiki.api.ApiResult;
+
+/**
+ * @author Addshore
+ */
+public class MWApi extends org.mediawiki.api.MWApi {
+
+    public MWApi(String apiURL, AbstractHttpClient client) {
+        super(apiURL, client);
+    }
+
+    /**
+     * @param username String
+     * @param password String
+     * @return String On success: "PASS"
+     *                   failure: A failure message code (deifned by mediawiki)
+     *                   misc:    genericerror-UI, genericerror-REDIRECT, genericerror-RESTART
+     * @throws IOException On api request IO issue
+     */
+    public String login(String username, String password) throws IOException {
+
+        /** Request a login token to be used later to log in. */
+        ApiResult tokenData = this.action("query")
+                .param("action", "query")
+                .param("meta", "tokens")
+                .param("type", "login")
+                .post();
+        String token = tokenData.getString("/api/query/tokens/@logintoken");
+
+        /** Actually log in. */
+        ApiResult loginData = this.action("clientlogin")
+                .param("rememberMe", "1")
+                .param("username", username)
+                .param("password", password)
+                .param("logintoken", token)
+                .param("loginreturnurl", "http://example.com/")//TODO return to url?
+                .post();
+        String status = loginData.getString("/api/clientlogin/@status");
+
+        if (status.equals("PASS")) {
+            this.isLoggedIn = true;
+            return status;
+
+        } else if (status.equals("FAIL")) {
+            return loginData.getString("/api/clientlogin/@messagecode");
+        }
+
+        // UI, REDIRECT, RESTART
+        return "genericerror-" + status;
+    }
+
+
+}

app/src/main/java/fr/free/nrw/commons/MediaDataExtractor.java

@@ -1,7 +1,6 @@
 package fr.free.nrw.commons;
 
 import org.mediawiki.api.ApiResult;
-import org.mediawiki.api.MWApi;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.w3c.dom.Node;

app/src/main/java/fr/free/nrw/commons/auth/LoginActivity.java

@@ -66,7 +66,7 @@ public class LoginActivity extends AccountAuthenticatorActivity {
                     .param("result", result)
                     .log();
 
-            if (result.equals("Success")) {
+            if (result.equals("PASS")) {
                 if (dialog != null && dialog.isShowing()) {
                     dialog.dismiss();
                 }
@@ -100,20 +100,27 @@ public class LoginActivity extends AccountAuthenticatorActivity {
 
             } else {
                 int response;
+                // Match known failure message codes and provide messages
                 if(result.equals("NetworkFailure")) {
+                    // Matches NetworkFailure which is created by the doInBackground method
                     response = R.string.login_failed_network;
-                } else if(result.equals("NotExists") || result.equals("Illegal") || result.equals("NotExists")) {
+                } else if (result.toLowerCase().contains("nosuchuser".toLowerCase()) || result.toLowerCase().contains("noname".toLowerCase())) {
+                    // Matches nosuchuser, nosuchusershort, noname
                     response = R.string.login_failed_username;
                     passwordEdit.setText("");
-                } else if(result.equals("EmptyPass") || result.equals("WrongPass") || result.equals("WrongPluginPass")) {
+
+                } else if (result.toLowerCase().contains("wrongpassword".toLowerCase())) {
+                    // Matches wrongpassword, wrongpasswordempty
                     response = R.string.login_failed_password;
                     passwordEdit.setText("");
-                } else if(result.equals("Throttled")) {
+                } else if (result.toLowerCase().contains("throttle".toLowerCase())) {
+                    // Matches unknown throttle error codes
                     response = R.string.login_failed_throttled;
-                } else if(result.equals("Blocked")) {
+                } else if (result.toLowerCase().contains("userblocked".toLowerCase())) {
+                    // Matches login-userblocked
                     response = R.string.login_failed_blocked;
                 } else {
-                    // Should never really happen
+                    // Occurs with unhandled login failure codes
                     Timber.d("Login failed with reason: %s", result);
                     response = R.string.login_failed_generic;
                 }

app/src/main/java/fr/free/nrw/commons/auth/WikiAccountAuthenticator.java

@@ -9,11 +9,10 @@ import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
 
-import org.mediawiki.api.MWApi;
-
 import java.io.IOException;
 
 import fr.free.nrw.commons.CommonsApplication;
+import fr.free.nrw.commons.MWApi;
 
 public class WikiAccountAuthenticator extends AbstractAccountAuthenticator {
 
@@ -46,7 +45,7 @@ public class WikiAccountAuthenticator extends AbstractAccountAuthenticator {
     private String getAuthCookie(String username, String password) throws IOException {
         MWApi api = CommonsApplication.createMWApi();
         String result = api.login(username, password);
-        if(result.equals("Success")) {
+        if(result.equals("PASS")) {
             return api.getAuthCookie();
         } else {
             return null;

app/src/main/java/fr/free/nrw/commons/category/MethodAUpdater.java

@@ -3,8 +3,8 @@ package fr.free.nrw.commons.category;
 import android.os.AsyncTask;
 import android.view.View;
 
+import fr.free.nrw.commons.MWApi;
 import org.mediawiki.api.ApiResult;
-import org.mediawiki.api.MWApi;
 
 import java.io.IOException;
 import java.util.ArrayList;

app/src/main/java/fr/free/nrw/commons/category/PrefixUpdater.java

@@ -4,8 +4,8 @@ import android.os.AsyncTask;
 import android.text.TextUtils;
 import android.view.View;
 
+import fr.free.nrw.commons.MWApi;
 import org.mediawiki.api.ApiResult;
-import org.mediawiki.api.MWApi;
 
 import java.io.IOException;
 import java.util.ArrayList;

app/src/main/java/fr/free/nrw/commons/category/TitleCategories.java

@@ -2,8 +2,8 @@ package fr.free.nrw.commons.category;
 
 import android.os.AsyncTask;
 
+import fr.free.nrw.commons.MWApi;
 import org.mediawiki.api.ApiResult;
-import org.mediawiki.api.MWApi;
 
 import java.io.IOException;
 import java.util.ArrayList;

app/src/main/java/fr/free/nrw/commons/contributions/ContributionsSyncAdapter.java

@@ -12,8 +12,8 @@ import android.os.Bundle;
 import android.os.RemoteException;
 import android.text.TextUtils;
 
+import fr.free.nrw.commons.MWApi;
 import org.mediawiki.api.ApiResult;
-import org.mediawiki.api.MWApi;
 
 import java.io.IOException;
 import java.util.ArrayList;

app/src/main/java/fr/free/nrw/commons/modifications/ModificationsSyncAdapter.java

@@ -12,8 +12,8 @@ import android.database.Cursor;
 import android.os.Bundle;
 import android.os.RemoteException;
 
+import fr.free.nrw.commons.MWApi;
 import org.mediawiki.api.ApiResult;
-import org.mediawiki.api.MWApi;
 
 import java.io.IOException;
 

app/src/main/java/fr/free/nrw/commons/upload/ExistingFileAsync.java

@@ -6,8 +6,8 @@ import android.content.Intent;
 import android.os.AsyncTask;
 import android.support.v7.app.AlertDialog;
 
+import fr.free.nrw.commons.MWApi;
 import org.mediawiki.api.ApiResult;
-import org.mediawiki.api.MWApi;
 
 import java.io.IOException;
 import java.util.ArrayList;

app/src/main/java/fr/free/nrw/commons/upload/UploadService.java

@@ -13,8 +13,8 @@ import android.support.v4.app.NotificationCompat;
 import android.webkit.MimeTypeMap;
 import android.widget.Toast;
 
+import fr.free.nrw.commons.*;
 import org.mediawiki.api.ApiResult;
-import org.mediawiki.api.MWApi;
 
 import java.io.FileNotFoundException;
 import java.io.IOException;
@@ -25,11 +25,6 @@ import java.util.Set;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
-import fr.free.nrw.commons.CommonsApplication;
-import fr.free.nrw.commons.EventLog;
-import fr.free.nrw.commons.HandlerService;
-import fr.free.nrw.commons.R;
-import fr.free.nrw.commons.Utils;
 import fr.free.nrw.commons.contributions.Contribution;
 import fr.free.nrw.commons.contributions.ContributionsActivity;
 import fr.free.nrw.commons.contributions.ContributionsContentProvider;