1 | // License: GPL. For details, see LICENSE file.
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2 | package org.openstreetmap.josm.io.auth;
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3 |
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4 | import java.awt.GraphicsEnvironment;
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5 | import java.net.Authenticator.RequestorType;
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6 | import java.net.PasswordAuthentication;
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7 | import java.util.EnumMap;
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8 | import java.util.Map;
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9 |
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10 | import org.openstreetmap.josm.gui.io.CredentialDialog;
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11 | import org.openstreetmap.josm.gui.util.GuiHelper;
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12 |
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13 | /**
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14 | * Partial implementation of the {@link CredentialsAgent} interface.
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15 | * <p>
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16 | * Provides a memory cache for the credentials and means to query the information
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17 | * from the user.
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18 | */
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19 | public abstract class AbstractCredentialsAgent implements CredentialsAgent {
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20 |
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21 | protected Map<RequestorType, PasswordAuthentication> memoryCredentialsCache = new EnumMap<>(RequestorType.class);
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22 |
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23 | @Override
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24 | public CredentialsAgentResponse getCredentials(final RequestorType requestorType, final String host, boolean noSuccessWithLastResponse)
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25 | throws CredentialsAgentException {
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26 | if (requestorType == null)
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27 | return null;
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28 | PasswordAuthentication credentials = lookup(requestorType, host);
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29 | final String username = (credentials == null || credentials.getUserName() == null) ? "" : credentials.getUserName();
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30 | final String password = (credentials == null || credentials.getPassword() == null) ? "" : String.valueOf(credentials.getPassword());
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31 |
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32 | final CredentialsAgentResponse response = new CredentialsAgentResponse();
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33 |
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34 | /*
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35 | * Last request was successful and there was no credentials stored
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36 | * in file (or only the username is stored).
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37 | * -> Try to recall credentials that have been entered
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38 | * manually in this session.
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39 | */
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40 | if (!noSuccessWithLastResponse && memoryCredentialsCache.containsKey(requestorType) &&
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41 | (credentials == null || credentials.getPassword() == null || credentials.getPassword().length == 0)) {
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42 | PasswordAuthentication pa = memoryCredentialsCache.get(requestorType);
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43 | response.setUsername(pa.getUserName());
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44 | response.setPassword(pa.getPassword());
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45 | response.setCanceled(false);
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46 | /*
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47 | * Prompt the user for credentials. This happens the first time each
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48 | * josm start if the user does not save the credentials to preference
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49 | * file (username=="") and each time after authentication failed
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50 | * (noSuccessWithLastResponse == true).
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51 | */
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52 | } else if (noSuccessWithLastResponse || username.isEmpty() || password.isEmpty()) {
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53 | if (!GraphicsEnvironment.isHeadless()) {
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54 | GuiHelper.runInEDTAndWait(() -> {
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55 | CredentialDialog dialog;
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56 | if (requestorType.equals(RequestorType.PROXY))
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57 | dialog = CredentialDialog.getHttpProxyCredentialDialog(
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58 | username, password, host, getSaveUsernameAndPasswordCheckboxText());
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59 | else
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60 | dialog = CredentialDialog.getOsmApiCredentialDialog(
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61 | username, password, host, getSaveUsernameAndPasswordCheckboxText());
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62 | dialog.setVisible(true);
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63 | response.setCanceled(dialog.isCanceled());
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64 | if (dialog.isCanceled())
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65 | return;
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66 | response.setUsername(dialog.getUsername());
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67 | response.setPassword(dialog.getPassword());
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68 | response.setSaveCredentials(dialog.isSaveCredentials());
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69 | });
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70 | }
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71 | if (response.isCanceled() || response.getUsername() == null || response.getPassword() == null) {
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72 | return response;
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73 | }
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74 | if (response.isSaveCredentials()) {
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75 | store(requestorType, host, new PasswordAuthentication(
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76 | response.getUsername(),
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77 | response.getPassword()
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78 | ));
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79 | /*
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80 | * User decides not to save credentials to file. Keep it
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81 | * in memory so we don't have to ask over and over again.
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82 | */
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83 | } else {
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84 | PasswordAuthentication pa = new PasswordAuthentication(response.getUsername(), response.getPassword());
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85 | memoryCredentialsCache.put(requestorType, pa);
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86 | }
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87 | /*
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88 | * We got it from file.
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89 | */
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90 | } else {
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91 | response.setUsername(username);
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92 | response.setPassword(password.toCharArray());
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93 | response.setCanceled(false);
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94 | }
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95 | return response;
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96 | }
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97 |
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98 | /**
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99 | * Provide the text for a checkbox that offers to save the
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100 | * username and password that has been entered by the user.
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101 | * @return checkbox text
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102 | */
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103 | public abstract String getSaveUsernameAndPasswordCheckboxText();
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104 | }
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