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 {
74 HttpURLConnection http = NetworkUtil.prepareConnection(mProfile, "add");
75 http.setRequestMethod("PUT");
76 http.setRequestProperty("Content-Type", "application/json");
77 http.setRequestProperty("Accept", "*/*");
79 ParsedLedgerTransaction jsonTransaction;
80 jsonTransaction = ltr.toParsedLedgerTransaction();
81 ObjectMapper mapper = new ObjectMapper();
82 ObjectWriter writer = mapper.writerFor(ParsedLedgerTransaction.class);
83 String body = writer.writeValueAsString(jsonTransaction);
86 debug("network", "The request would be: " + body);
89 if (Math.random() > 0.3)
90 throw new RuntimeException("Simulated test exception");
92 catch (InterruptedException ex) {
93 Logger.debug("network", ex.toString());
99 byte[] bodyBytes = body.getBytes(StandardCharsets.UTF_8);
100 http.setDoOutput(true);
101 http.setDoInput(true);
102 http.addRequestProperty("Content-Length", String.valueOf(bodyBytes.length));
104 debug("network", "request header: " + http.getRequestProperties()
107 try (OutputStream req = http.getOutputStream()) {
108 debug("network", "Request body: " + body);
109 req.write(bodyBytes);
111 final int responseCode = http.getResponseCode();
113 String.format("Response: %d %s", responseCode, http.getResponseMessage()));
115 try (InputStream resp = http.getErrorStream()) {
117 switch (responseCode) {
122 return false; // will cause a retry with the legacy method
124 BufferedReader reader = new BufferedReader(new InputStreamReader(resp));
125 String line = reader.readLine();
126 debug("network", "Response content: " + line);
127 throw new IOException(
128 String.format("Error response code %d", responseCode));
135 private boolean legacySendOK() throws IOException {
136 HttpURLConnection http = NetworkUtil.prepareConnection(mProfile, "add");
137 http.setRequestMethod("POST");
138 http.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
139 http.setRequestProperty("Accept", "*/*");
140 if ((session != null) && !session.isEmpty()) {
141 http.setRequestProperty("Cookie", String.format("_SESSION=%s", session));
143 http.setDoOutput(true);
144 http.setDoInput(true);
146 UrlEncodedFormData params = new UrlEncodedFormData();
147 params.addPair("_formid", "identify-add");
149 params.addPair("_token", token);
151 Date transactionDate = ltr.getDate();
152 if (transactionDate == null) {
153 transactionDate = new GregorianCalendar().getTime();
156 params.addPair("date", Globals.formatLedgerDate(transactionDate));
157 params.addPair("description", ltr.getDescription());
158 for (LedgerTransactionAccount acc : ltr.getAccounts()) {
159 params.addPair("account", acc.getAccountName());
160 if (acc.isAmountSet())
161 params.addPair("amount", String.format(Locale.US, "%1.2f", acc.getAmount()));
163 params.addPair("amount", "");
166 String body = params.toString();
167 http.addRequestProperty("Content-Length", String.valueOf(body.length()));
169 debug("network", "request header: " + http.getRequestProperties()
172 try (OutputStream req = http.getOutputStream()) {
173 debug("network", "Request body: " + body);
174 req.write(body.getBytes(StandardCharsets.US_ASCII));
176 try (InputStream resp = http.getInputStream()) {
177 debug("update_accounts", String.valueOf(http.getResponseCode()));
178 if (http.getResponseCode() == 303) {
179 // everything is fine
182 else if (http.getResponseCode() == 200) {
183 // get the new cookie
185 Pattern reSessionCookie = Pattern.compile("_SESSION=([^;]+);.*");
187 Map<String, List<String>> header = http.getHeaderFields();
188 List<String> cookieHeader = header.get("Set-Cookie");
189 if (cookieHeader != null) {
190 String cookie = cookieHeader.get(0);
191 Matcher m = reSessionCookie.matcher(cookie);
193 session = m.group(1);
194 debug("network", "new session is " + session);
197 debug("network", "set-cookie: " + cookie);
199 "Response Set-Cookie headers is not a _SESSION one");
203 Log.w("network", "Response has no Set-Cookie header");
206 // the token needs to be updated
207 BufferedReader reader = new BufferedReader(new InputStreamReader(resp));
208 Pattern re = Pattern.compile(
209 "<input type=\"hidden\" name=\"_token\" value=\"([^\"]+)\">");
211 while ((line = reader.readLine()) != null) {
212 //debug("dump", line);
213 Matcher m = re.matcher(line);
216 debug("save-transaction", line);
217 debug("save-transaction", "Token=" + token);
218 return false; // retry
221 throw new IOException("Can't find _token string");
224 throw new IOException(
225 String.format("Error response code %d", http.getResponseCode()));
232 protected Void doInBackground(LedgerTransaction... ledgerTransactions) {
235 ltr = ledgerTransactions[0];
239 while (!legacySendOK()) {
242 throw new IOException(String.format("aborting after %d tries", tried));
247 catch (Exception e) {
249 error = e.getMessage();
256 protected void onPostExecute(Void aVoid) {
257 super.onPostExecute(aVoid);
258 taskCallback.done(error);