2 * Copyright © 2019 Damyan Ivanov.
3 * This file is part of MoLe.
4 * MoLe 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 * MoLe 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 MoLe. If not, see <https://www.gnu.org/licenses/>.
18 package net.ktnx.mobileledger.async;
20 import android.os.AsyncTask;
21 import android.util.Log;
23 import com.fasterxml.jackson.databind.ObjectMapper;
24 import com.fasterxml.jackson.databind.ObjectWriter;
26 import net.ktnx.mobileledger.json.ParsedLedgerTransaction;
27 import net.ktnx.mobileledger.model.LedgerTransaction;
28 import net.ktnx.mobileledger.model.LedgerTransactionAccount;
29 import net.ktnx.mobileledger.model.MobileLedgerProfile;
30 import net.ktnx.mobileledger.utils.Globals;
31 import net.ktnx.mobileledger.utils.Logger;
32 import net.ktnx.mobileledger.utils.NetworkUtil;
33 import net.ktnx.mobileledger.utils.UrlEncodedFormData;
35 import java.io.BufferedReader;
36 import java.io.IOException;
37 import java.io.InputStream;
38 import java.io.InputStreamReader;
39 import java.io.OutputStream;
40 import java.net.HttpURLConnection;
41 import java.nio.charset.StandardCharsets;
42 import java.util.Date;
43 import java.util.GregorianCalendar;
44 import java.util.List;
45 import java.util.Locale;
47 import java.util.regex.Matcher;
48 import java.util.regex.Pattern;
50 import static android.os.SystemClock.sleep;
51 import static net.ktnx.mobileledger.utils.Logger.debug;
53 public class SendTransactionTask extends AsyncTask<LedgerTransaction, Void, Void> {
54 private final TaskCallback taskCallback;
55 protected String error;
57 private String session;
58 private LedgerTransaction ltr;
59 private MobileLedgerProfile mProfile;
60 private boolean simulate = false;
62 public SendTransactionTask(TaskCallback callback, MobileLedgerProfile profile,
64 taskCallback = callback;
66 this.simulate = simulate;
68 public SendTransactionTask(TaskCallback callback, MobileLedgerProfile profile) {
69 taskCallback = callback;
73 private boolean sendOK() throws IOException {
77 if (Math.random() > 0.3)
78 throw new RuntimeException("Simulated test exception");
80 catch (InterruptedException ex) {
81 Logger.debug("network", ex.toString());
87 HttpURLConnection http = NetworkUtil.prepareConnection(mProfile, "add");
88 http.setRequestMethod("PUT");
89 http.setRequestProperty("Content-Type", "application/json");
90 http.setRequestProperty("Accept", "*/*");
92 ParsedLedgerTransaction jsonTransaction;
93 jsonTransaction = ltr.toParsedLedgerTransaction();
94 ObjectMapper mapper = new ObjectMapper();
95 ObjectWriter writer = mapper.writerFor(ParsedLedgerTransaction.class);
96 String body = writer.writeValueAsString(jsonTransaction);
98 byte[] bodyBytes = body.getBytes(StandardCharsets.UTF_8);
99 http.setDoOutput(true);
100 http.setDoInput(true);
101 http.addRequestProperty("Content-Length", String.valueOf(bodyBytes.length));
103 debug("network", "request header: " + http.getRequestProperties()
106 try (OutputStream req = http.getOutputStream()) {
107 debug("network", "Request body: " + body);
108 req.write(bodyBytes);
110 final int responseCode = http.getResponseCode();
112 String.format("Response: %d %s", responseCode, http.getResponseMessage()));
114 try (InputStream resp = http.getErrorStream()) {
116 switch (responseCode) {
121 return false; // will cause a retry with the legacy method
123 BufferedReader reader = new BufferedReader(new InputStreamReader(resp));
124 String line = reader.readLine();
125 debug("network", "Response content: " + line);
126 throw new IOException(
127 String.format("Error response code %d", responseCode));
134 private boolean legacySendOK() throws IOException {
135 HttpURLConnection http = NetworkUtil.prepareConnection(mProfile, "add");
136 http.setRequestMethod("POST");
137 http.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
138 http.setRequestProperty("Accept", "*/*");
139 if ((session != null) && !session.isEmpty()) {
140 http.setRequestProperty("Cookie", String.format("_SESSION=%s", session));
142 http.setDoOutput(true);
143 http.setDoInput(true);
145 UrlEncodedFormData params = new UrlEncodedFormData();
146 params.addPair("_formid", "identify-add");
148 params.addPair("_token", token);
150 Date transactionDate = ltr.getDate();
151 if (transactionDate == null) {
152 transactionDate = new GregorianCalendar().getTime();
155 params.addPair("date", Globals.formatLedgerDate(transactionDate));
156 params.addPair("description", ltr.getDescription());
157 for (LedgerTransactionAccount acc : ltr.getAccounts()) {
158 params.addPair("account", acc.getAccountName());
159 if (acc.isAmountSet())
160 params.addPair("amount", String.format(Locale.US, "%1.2f", acc.getAmount()));
162 params.addPair("amount", "");
165 String body = params.toString();
166 http.addRequestProperty("Content-Length", String.valueOf(body.length()));
168 debug("network", "request header: " + http.getRequestProperties()
171 try (OutputStream req = http.getOutputStream()) {
172 debug("network", "Request body: " + body);
173 req.write(body.getBytes(StandardCharsets.US_ASCII));
175 try (InputStream resp = http.getInputStream()) {
176 debug("update_accounts", String.valueOf(http.getResponseCode()));
177 if (http.getResponseCode() == 303) {
178 // everything is fine
181 else if (http.getResponseCode() == 200) {
182 // get the new cookie
184 Pattern reSessionCookie = Pattern.compile("_SESSION=([^;]+);.*");
186 Map<String, List<String>> header = http.getHeaderFields();
187 List<String> cookieHeader = header.get("Set-Cookie");
188 if (cookieHeader != null) {
189 String cookie = cookieHeader.get(0);
190 Matcher m = reSessionCookie.matcher(cookie);
192 session = m.group(1);
193 debug("network", "new session is " + session);
196 debug("network", "set-cookie: " + cookie);
198 "Response Set-Cookie headers is not a _SESSION one");
202 Log.w("network", "Response has no Set-Cookie header");
205 // the token needs to be updated
206 BufferedReader reader = new BufferedReader(new InputStreamReader(resp));
207 Pattern re = Pattern.compile(
208 "<input type=\"hidden\" name=\"_token\" value=\"([^\"]+)\">");
210 while ((line = reader.readLine()) != null) {
211 //debug("dump", line);
212 Matcher m = re.matcher(line);
215 debug("save-transaction", line);
216 debug("save-transaction", "Token=" + token);
217 return false; // retry
220 throw new IOException("Can't find _token string");
223 throw new IOException(
224 String.format("Error response code %d", http.getResponseCode()));
231 protected Void doInBackground(LedgerTransaction... ledgerTransactions) {
234 ltr = ledgerTransactions[0];
238 while (!legacySendOK()) {
241 throw new IOException(String.format("aborting after %d tries", tried));
246 catch (Exception e) {
248 error = e.getMessage();
255 protected void onPostExecute(Void aVoid) {
256 super.onPostExecute(aVoid);
257 taskCallback.done(error);