Java tutorial
/* * Saldo - http://github.com/kria/saldo * * Copyright (C) 2010 Kristian Adrup * * This file is part of Saldo. * * Saldo is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * Saldo is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package com.adrup.saldo.bank.lf; import com.adrup.http.HttpException; import com.adrup.http.HttpHelper; import com.adrup.saldo.SaldoHttpClient; import com.adrup.saldo.bank.Account; import com.adrup.saldo.bank.AccountHashKey; import com.adrup.saldo.bank.AuthenticationException; import com.adrup.saldo.bank.BankException; import com.adrup.saldo.bank.BankLogin; import com.adrup.saldo.bank.BankManager; import com.adrup.saldo.bank.RemoteAccount; import org.apache.http.HttpHost; import org.apache.http.NameValuePair; import org.apache.http.client.HttpClient; import org.apache.http.client.methods.HttpUriRequest; import org.apache.http.message.BasicNameValuePair; import org.apache.http.protocol.BasicHttpContext; import org.apache.http.protocol.ExecutionContext; import org.apache.http.protocol.HttpContext; import android.content.Context; import android.text.Html; import android.util.Log; import java.io.IOException; import java.util.ArrayList; import java.util.LinkedHashMap; import java.util.List; import java.util.Map; import java.util.regex.Matcher; import java.util.regex.Pattern; /** * A Lnsfrskringar Bank implementation of {@link BankManager}. * * @author Kristian Adrup * */ public class LfBankManager implements BankManager { private static final String TAG = "LfBankManager"; private static final String NAME = "Lnsforsakringar Bank"; private static final String LOGIN_URL = "https://secure246.lansforsakringar.se/lfportal/login/privat"; private static final String USER_PARAM = "inputPersonalNumber"; private static final String PASS_PARAM = "inputPinCode"; private static final String VIEWSTATE_PARAM = "__VIEWSTATE"; private static final String EVENTVALIDATION_PARAM = "__EVENTVALIDATION"; private static final String VIEWSTATE_REGEX = "id=\"__VIEWSTATE\"\\s+value=\"([^\"]+)\""; private static final String EVENTVALIDATION_REGEX = "id=\"__EVENTVALIDATION\"\\s+value=\"([^\"]+)\""; private static final String ACCOUNTS_URL_REGEX = "<li class=\"bank\">\\s*<a href=\"([^\"]+)\""; private static final String TOKEN_REGEX = "var\\s+token\\s*=\\s*'([^']+)'"; private static final String ACCOUNTS_REGEX = "<a.+>([^<]+)</span></a>.+>([\\d -,]+)</span></td>"; private BankLogin mBankLogin; private Context mContext; public LfBankManager(BankLogin bankLogin, Context context) { this.mBankLogin = bankLogin; this.mContext = context; } @Override public String getName() { return NAME; } @Override public Map<AccountHashKey, RemoteAccount> getAccounts() throws BankException { return getAccounts(new LinkedHashMap<AccountHashKey, RemoteAccount>()); } @Override public Map<AccountHashKey, RemoteAccount> getAccounts(Map<AccountHashKey, RemoteAccount> accounts) throws BankException { Log.d(TAG, "getAccounts()"); HttpClient httpClient = new SaldoHttpClient(mContext); try { // get login page Log.d(TAG, "getting login page"); HttpContext httpContext = new BasicHttpContext(); String res = HttpHelper.get(httpClient, LOGIN_URL, httpContext); HttpUriRequest currentReq = (HttpUriRequest) httpContext.getAttribute(ExecutionContext.HTTP_REQUEST); HttpHost currentHost = (HttpHost) httpContext.getAttribute(ExecutionContext.HTTP_TARGET_HOST); String action = currentHost.toURI() + currentReq.getURI(); Log.e(TAG, "action=" + action); Matcher matcher = Pattern.compile(VIEWSTATE_REGEX).matcher(res); if (!matcher.find()) { Log.e(TAG, "No viewstate match."); Log.d(TAG, res); throw new LfBankException("No viewState match."); } String viewState = matcher.group(1); Log.d(TAG, "viewState= " + viewState); matcher = Pattern.compile(EVENTVALIDATION_REGEX).matcher(res); if (!matcher.find()) { Log.e(TAG, "No eventvalidation match."); Log.d(TAG, res); throw new LfBankException("No eventValidation match."); } String eventValidation = matcher.group(1); Log.d(TAG, "eventValidation= " + eventValidation); // do login post List<NameValuePair> parameters = new ArrayList<NameValuePair>(3); parameters.add(new BasicNameValuePair("__LASTFOCUS", "")); parameters.add(new BasicNameValuePair("__EVENTTARGET", "")); parameters.add(new BasicNameValuePair("__EVENTARGUMENT", "")); parameters.add(new BasicNameValuePair(VIEWSTATE_PARAM, viewState)); parameters.add(new BasicNameValuePair("selMechanism", "PIN-kod")); parameters.add(new BasicNameValuePair(USER_PARAM, mBankLogin.getUsername())); parameters.add(new BasicNameValuePair(PASS_PARAM, mBankLogin.getPassword())); parameters.add(new BasicNameValuePair("btnLogIn.x", "39")); parameters.add(new BasicNameValuePair("btnLogIn.y", "11")); parameters.add(new BasicNameValuePair(EVENTVALIDATION_PARAM, eventValidation)); Log.d(TAG, "logging in..."); res = HttpHelper.post(httpClient, action, parameters); if (res.contains("Felaktig inloggning")) { Log.d(TAG, "auth fail"); throw new AuthenticationException("auth fail"); } Log.d(TAG, "getting accountsUrl"); // token matcher = Pattern.compile(TOKEN_REGEX).matcher(res); if (!matcher.find()) { Log.e(TAG, "No token match."); Log.d(TAG, res); throw new LfBankException("No token match."); } String token = matcher.group(1); Log.d(TAG, "token= " + token); // accountsUrl matcher = Pattern.compile(ACCOUNTS_URL_REGEX).matcher(res); if (!matcher.find()) { Log.e(TAG, "No accountsUrl match."); Log.d(TAG, res); throw new LfBankException("No accountsUrl match."); } String accountsUrl = Html.fromHtml(matcher.group(1)).toString(); accountsUrl += "&_token=" + token; Log.d(TAG, "tokenized accountsUrl= " + accountsUrl); // get accounts page Log.d(TAG, "fetching accounts"); res = HttpHelper.get(httpClient, accountsUrl); matcher = Pattern.compile(ACCOUNTS_REGEX).matcher(res); int remoteId = 1; int count = 0; while (matcher.find()) { count++; int groupCount = matcher.groupCount(); for (int i = 1; i <= groupCount; i++) { Log.d(TAG, i + ":" + matcher.group(i)); } if (groupCount < 2) { throw new BankException("Pattern match issue: groupCount < 2"); } int ordinal = remoteId; String name = Html.fromHtml(matcher.group(1)).toString(); long balance = Long.parseLong(matcher.group(2).replaceAll("\\,|\\.| ", "")) / 100; accounts.put(new AccountHashKey(String.valueOf(remoteId), mBankLogin.getId()), new Account(String.valueOf(remoteId), mBankLogin.getId(), ordinal, name, balance)); remoteId++; } if (count == 0) { Log.d(TAG, "no accounts added"); Log.d(TAG, res); } } catch (IOException e) { Log.e(TAG, e.getMessage(), e); throw new LfBankException(e.getMessage(), e); } catch (HttpException e) { Log.e(TAG, e.getMessage(), e); throw new LfBankException(e.getMessage(), e); } finally { httpClient.getConnectionManager().shutdown(); } return accounts; } }