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.NetworkUtil;
32 import net.ktnx.mobileledger.utils.UrlEncodedFormData;
34 import java.io.BufferedReader;
35 import java.io.IOException;
36 import java.io.InputStream;
37 import java.io.InputStreamReader;
38 import java.io.OutputStream;
39 import java.net.HttpURLConnection;
40 import java.nio.charset.StandardCharsets;
41 import java.util.List;
42 import java.util.Locale;
44 import java.util.regex.Matcher;
45 import java.util.regex.Pattern;
47 import static android.os.SystemClock.sleep;
48 import static net.ktnx.mobileledger.utils.Logger.debug;
50 public class SendTransactionTask extends AsyncTask<LedgerTransaction, Void, Void> {
51 private final TaskCallback taskCallback;
52 protected String error;
54 private String session;
55 private LedgerTransaction ltr;
56 private MobileLedgerProfile mProfile;
58 public SendTransactionTask(TaskCallback callback, MobileLedgerProfile profile) {
59 taskCallback = callback;
62 private boolean sendOK() throws IOException {
63 // if (BuildConfig.DEBUG) {
65 // Thread.sleep(1500);
66 // if (Math.random() > 0.3)
67 // throw new RuntimeException("Simulated test exception");
69 // catch (InterruptedException ex) {
70 // Logger.debug("network", ex.toString());
76 HttpURLConnection http = NetworkUtil.prepareConnection(mProfile, "add");
77 http.setRequestMethod("PUT");
78 http.setRequestProperty("Content-Type", "application/json");
79 http.setRequestProperty("Accept", "*/*");
81 ParsedLedgerTransaction jsonTransaction;
82 jsonTransaction = ltr.toParsedLedgerTransaction();
83 ObjectMapper mapper = new ObjectMapper();
84 ObjectWriter writer = mapper.writerFor(ParsedLedgerTransaction.class);
85 String body = writer.writeValueAsString(jsonTransaction);
87 byte[] bodyBytes = body.getBytes(StandardCharsets.UTF_8);
88 http.setDoOutput(true);
89 http.setDoInput(true);
90 http.addRequestProperty("Content-Length", String.valueOf(bodyBytes.length));
92 debug("network", "request header: " + http.getRequestProperties()
95 try (OutputStream req = http.getOutputStream()) {
96 debug("network", "Request body: " + body);
99 final int responseCode = http.getResponseCode();
101 String.format("Response: %d %s", responseCode, http.getResponseMessage()));
103 try (InputStream resp = http.getErrorStream()) {
105 switch (responseCode) {
110 return false; // will cause a retry with the legacy method
112 BufferedReader reader = new BufferedReader(new InputStreamReader(resp));
113 String line = reader.readLine();
114 debug("network", "Response content: " + line);
115 throw new IOException(
116 String.format("Error response code %d", responseCode));
123 private boolean legacySendOK() throws IOException {
124 HttpURLConnection http = NetworkUtil.prepareConnection(mProfile, "add");
125 http.setRequestMethod("POST");
126 http.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
127 http.setRequestProperty("Accept", "*/*");
128 if ((session != null) && !session.isEmpty()) {
129 http.setRequestProperty("Cookie", String.format("_SESSION=%s", session));
131 http.setDoOutput(true);
132 http.setDoInput(true);
134 UrlEncodedFormData params = new UrlEncodedFormData();
135 params.addPair("_formid", "identify-add");
137 params.addPair("_token", token);
138 params.addPair("date", Globals.formatLedgerDate(ltr.getDate()));
139 params.addPair("description", ltr.getDescription());
140 for (LedgerTransactionAccount acc : ltr.getAccounts()) {
141 params.addPair("account", acc.getAccountName());
142 if (acc.isAmountSet())
143 params.addPair("amount", String.format(Locale.US, "%1.2f", acc.getAmount()));
145 params.addPair("amount", "");
148 String body = params.toString();
149 http.addRequestProperty("Content-Length", String.valueOf(body.length()));
151 debug("network", "request header: " + http.getRequestProperties()
154 try (OutputStream req = http.getOutputStream()) {
155 debug("network", "Request body: " + body);
156 req.write(body.getBytes(StandardCharsets.US_ASCII));
158 try (InputStream resp = http.getInputStream()) {
159 debug("update_accounts", String.valueOf(http.getResponseCode()));
160 if (http.getResponseCode() == 303) {
161 // everything is fine
164 else if (http.getResponseCode() == 200) {
165 // get the new cookie
167 Pattern reSessionCookie = Pattern.compile("_SESSION=([^;]+);.*");
169 Map<String, List<String>> header = http.getHeaderFields();
170 List<String> cookieHeader = header.get("Set-Cookie");
171 if (cookieHeader != null) {
172 String cookie = cookieHeader.get(0);
173 Matcher m = reSessionCookie.matcher(cookie);
175 session = m.group(1);
176 debug("network", "new session is " + session);
179 debug("network", "set-cookie: " + cookie);
181 "Response Set-Cookie headers is not a _SESSION one");
185 Log.w("network", "Response has no Set-Cookie header");
188 // the token needs to be updated
189 BufferedReader reader = new BufferedReader(new InputStreamReader(resp));
190 Pattern re = Pattern.compile(
191 "<input type=\"hidden\" name=\"_token\" value=\"([^\"]+)\">");
193 while ((line = reader.readLine()) != null) {
194 //debug("dump", line);
195 Matcher m = re.matcher(line);
198 debug("save-transaction", line);
199 debug("save-transaction", "Token=" + token);
200 return false; // retry
203 throw new IOException("Can't find _token string");
206 throw new IOException(
207 String.format("Error response code %d", http.getResponseCode()));
214 protected Void doInBackground(LedgerTransaction... ledgerTransactions) {
217 ltr = ledgerTransactions[0];
221 while (!legacySendOK()) {
224 throw new IOException(String.format("aborting after %d tries", tried));
229 catch (Exception e) {
231 error = e.getMessage();
238 protected void onPostExecute(Void aVoid) {
239 super.onPostExecute(aVoid);
240 taskCallback.done(error);