2 * Copyright © 2019 Damyan Ivanov.
3 * This file is part of Mobile-Ledger.
4 * Mobile-Ledger is free software: you can distribute it and/or modify it
5 * under the term of the GNU General Public License as published by
6 * the Free Software Foundation, either version 3 of the License, or
7 * (at your opinion), any later version.
9 * Mobile-Ledger is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License terms for details.
14 * You should have received a copy of the GNU General Public License
15 * along with Mobile-Ledger. If not, see <https://www.gnu.org/licenses/>.
18 package net.ktnx.mobileledger.async;
20 import android.content.SharedPreferences;
21 import android.database.sqlite.SQLiteDatabase;
22 import android.os.OperationCanceledException;
23 import android.util.Log;
25 import net.ktnx.mobileledger.R;
26 import net.ktnx.mobileledger.model.LedgerAccount;
27 import net.ktnx.mobileledger.ui.account_summary.AccountSummaryFragment;
28 import net.ktnx.mobileledger.utils.MLDB;
29 import net.ktnx.mobileledger.utils.NetworkUtil;
31 import java.io.BufferedReader;
32 import java.io.FileNotFoundException;
33 import java.io.IOException;
34 import java.io.InputStream;
35 import java.io.InputStreamReader;
36 import java.lang.ref.WeakReference;
37 import java.net.HttpURLConnection;
38 import java.net.MalformedURLException;
39 import java.net.URLDecoder;
40 import java.util.regex.Matcher;
41 import java.util.regex.Pattern;
43 public class RetrieveAccountsTask extends android.os.AsyncTask<Void, Integer, Void> {
45 WeakReference<AccountSummaryFragment> mContext;
46 private SharedPreferences pref;
48 public RetrieveAccountsTask(WeakReference<AccountSummaryFragment> context) {
53 public void setPref(SharedPreferences pref) {
57 protected Void doInBackground(Void... params) {
59 HttpURLConnection http = NetworkUtil.prepare_connection(pref, "add");
61 try (SQLiteDatabase db = MLDB.getWritableDatabase()) {
62 try (InputStream resp = http.getInputStream()) {
63 Log.d("update_accounts", String.valueOf(http.getResponseCode()));
64 if (http.getResponseCode() != 200) {
65 throw new IOException(
66 String.format("HTTP error: %d %s", http.getResponseCode(),
67 http.getResponseMessage()));
70 if (db.inTransaction()) throw new AssertionError();
72 db.beginTransaction();
75 db.execSQL("update account_values set keep=0;");
76 db.execSQL("update accounts set keep=0;");
79 String last_account_name = null;
81 new BufferedReader(new InputStreamReader(resp, "UTF-8"));
83 Pattern account_name_re =
84 Pattern.compile("/register\\?q=inacct%3A([a-zA-Z0-9%]+)\"");
85 Pattern value_re = Pattern.compile(
86 "<span class=\"[^\"]*\\bamount\\b[^\"]*\">\\s*([-+]?[\\d.,]+)(?:\\s+(\\S+))?</span>");
87 Pattern tr_re = Pattern.compile("</tr>");
88 Pattern descriptions_line_re =
89 Pattern.compile("\\bdescriptionsSuggester\\s*=\\s*new\\b");
90 Pattern description_items_re =
91 Pattern.compile("\"value\":\"([^\"]+)\"");
93 while ((line = buf.readLine()) != null) {
96 Matcher m = account_name_re.matcher(line);
98 String acct_encoded = m.group(1);
99 String acct_name = URLDecoder.decode(acct_encoded, "UTF-8");
100 acct_name = acct_name.replace("\"", "");
101 Log.d("account-parser", acct_name);
103 addAccount(db, acct_name);
104 publishProgress(++count);
106 last_account_name = acct_name;
111 Matcher tr_m = tr_re.matcher(line);
113 Log.d("account-parser", "<tr> - another account expected");
114 last_account_name = null;
118 if (last_account_name != null) {
119 m = value_re.matcher(line);
120 boolean match_found = false;
125 String value = m.group(1);
126 String currency = m.group(2);
127 if (currency == null) currency = "";
128 value = value.replace(',', '.');
129 Log.d("db", "curr=" + currency + ", value=" + value);
131 "insert or replace into account_values(account, currency, value, keep) values(?, ?, ?, 1);",
132 new Object[]{last_account_name, currency,
137 if (match_found) continue;
140 m = descriptions_line_re.matcher(line);
142 db.execSQL("update description_history set keep=0;");
143 m = description_items_re.matcher(line);
147 String description = m.group(1);
148 if (description.isEmpty()) continue;
150 Log.d("db", String.format("Stored description: %s",
152 db.execSQL("insert or replace into description_history" +
153 "(description, description_upper, keep) " +
155 new Object[]{description, description.toUpperCase()
161 db.execSQL("delete from account_values where keep=0;");
162 db.execSQL("delete from accounts where keep=0;");
163 db.setTransactionSuccessful();
165 catch (OperationCanceledException e) {
166 Log.w("async", "Account retrieval cancelled");
175 catch (MalformedURLException e) {
176 error = R.string.err_bad_backend_url;
179 catch (FileNotFoundException e) {
180 error = R.string.err_bad_auth;
183 catch (IOException e) {
184 error = R.string.err_net_io_error;
187 catch (Exception e) {
188 error = R.string.err_net_error;
194 private void throwIfCancelled() {
195 if (isCancelled()) throw new OperationCanceledException(null);
198 private void addAccount(SQLiteDatabase db, String name) {
200 LedgerAccount acc = new LedgerAccount(name);
201 db.execSQL("update accounts set level = ?, keep = 1 where name = ?",
202 new Object[]{acc.getLevel(), name});
203 db.execSQL("insert into accounts(name, name_upper, parent_name, level) select ?,?," +
204 "?,? " + "where (select changes() = 0)",
205 new Object[]{name, name.toUpperCase(), acc.getParentName(), acc.getLevel()});
206 name = acc.getParentName();
207 } while (name != null);
210 protected void onPostExecute(Void result) {
211 AccountSummaryFragment ctx = mContext.get();
212 if (ctx == null) return;
213 ctx.onAccountRefreshDone(this.error);