| 1 | // License: GPL. For details, see LICENSE file.
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| 2 | package org.openstreetmap.josm.gui.io;
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| 3 |
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| 4 | import static org.openstreetmap.josm.tools.I18n.tr;
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| 5 |
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| 6 | import java.awt.Component;
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| 7 | import java.io.IOException;
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| 8 | import java.util.List;
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| 9 |
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| 10 | import javax.swing.JOptionPane;
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| 11 | import javax.swing.SwingUtilities;
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| 12 |
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| 13 | import org.openstreetmap.josm.Main;
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| 14 | import org.openstreetmap.josm.data.osm.Changeset;
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| 15 | import org.openstreetmap.josm.data.osm.ChangesetCache;
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| 16 | import org.openstreetmap.josm.data.osm.UserInfo;
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| 17 | import org.openstreetmap.josm.gui.ExceptionDialogUtil;
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| 18 | import org.openstreetmap.josm.gui.JosmUserIdentityManager;
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| 19 | import org.openstreetmap.josm.gui.PleaseWaitRunnable;
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| 20 | import org.openstreetmap.josm.io.ChangesetQuery;
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| 21 | import org.openstreetmap.josm.io.OsmServerChangesetReader;
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| 22 | import org.openstreetmap.josm.io.OsmServerUserInfoReader;
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| 23 | import org.openstreetmap.josm.io.OsmTransferException;
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| 24 | import org.xml.sax.SAXException;
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| 25 |
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| 26 | /**
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| 27 | * This is a task for downloading the open changesets of the current user
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| 28 | * from the OSM server.
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| 29 | */
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| 30 | public class DownloadOpenChangesetsTask extends PleaseWaitRunnable {
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| 31 |
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| 32 | private boolean canceled;
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| 33 | private OsmServerChangesetReader reader;
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| 34 | private List<Changeset> changesets;
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| 35 | private Exception lastException;
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| 36 | private final Component parent;
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| 37 |
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| 38 | /**
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| 39 | * Constructs the task
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| 40 | * @param parent is a component to show error messages
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| 41 | */
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| 42 | public DownloadOpenChangesetsTask(Component parent) {
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| 43 | super(parent, tr("Downloading open changesets ..."), false /* don't ignore exceptions */);
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| 44 | this.parent = parent;
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| 45 | }
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| 46 |
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| 47 | @Override
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| 48 | protected void cancel() {
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| 49 | this.canceled = true;
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| 50 | synchronized (this) {
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| 51 | if (reader != null) {
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| 52 | reader.cancel();
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| 53 | }
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| 54 | }
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| 55 | }
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| 56 |
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| 57 | @Override
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| 58 | protected void finish() {
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| 59 | if (JosmUserIdentityManager.getInstance().isAnonymous()) {
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| 60 | JOptionPane.showMessageDialog(
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| 61 | JOptionPane.getFrameForComponent(parent),
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| 62 | "<html>" + tr("Could not retrieve the list of your open changesets because<br>"
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| 63 | + "JOSM does not know your identity.<br>"
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| 64 | + "You have either chosen to work anonymously or you are not entitled<br>"
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| 65 | + "to know the identity of the user on whose behalf you are working.")
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| 66 | + "</html>",
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| 67 | tr("Missing user identity"),
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| 68 | JOptionPane.ERROR_MESSAGE
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| 69 | );
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| 70 | return;
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| 71 | }
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| 72 | if (canceled) return;
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| 73 | if (lastException != null) {
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| 74 | ExceptionDialogUtil.explainException(lastException);
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| 75 | return;
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| 76 | }
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| 77 | if (changesets.isEmpty()) {
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| 78 | JOptionPane.showMessageDialog(
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| 79 | Main.parent,
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| 80 | tr("There are no open changesets"),
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| 81 | tr("No open changesets"),
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| 82 | JOptionPane.INFORMATION_MESSAGE
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| 83 | );
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| 84 | return;
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| 85 | }
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| 86 | SwingUtilities.invokeLater(
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| 87 | new Runnable() {
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| 88 | @Override public void run() {
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| 89 | ChangesetCache.getInstance().update(changesets);
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| 90 | }
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| 91 | }
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| 92 | );
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| 93 | }
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| 94 |
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| 95 | /**
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| 96 | * Refreshes the user info from the server. This is necessary if we don't know
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| 97 | * the users id yet.
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| 98 | *
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| 99 | */
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| 100 | protected void refreshUserIdentity() {
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| 101 | JosmUserIdentityManager im = JosmUserIdentityManager.getInstance();
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| 102 | try {
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| 103 | OsmServerUserInfoReader infoReader = new OsmServerUserInfoReader();
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| 104 | UserInfo info = infoReader.fetchUserInfo(getProgressMonitor().createSubTaskMonitor(1, false));
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| 105 | im.setFullyIdentified(info.getDisplayName(), info);
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| 106 | } catch (OsmTransferException e) {
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| 107 | // retrieving the user info can fail if the current user is not authorised to
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| 108 | // retrieve it, i.e. if he is working with an OAuth Access Token which doesn't
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| 109 | // have the respective privileges or if he didn't or he can't authenticate with
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| 110 | // a username/password-pair.
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| 111 | //
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| 112 | // Downgrade your knowlege about its identity if we've assumed that he was fully
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| 113 | // identified. Otherwise, if he is anonymous or partially identified, keep our level
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| 114 | // of knowlege.
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| 115 | //
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| 116 | if (im.isFullyIdentified()) {
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| 117 | im.setPartiallyIdentified(im.getUserName());
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| 118 | }
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| 119 | Main.warn(tr("Failed to retrieve user infos for the current JOSM user. Exception was: {0}", e.toString()));
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| 120 | }
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| 121 | }
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| 122 |
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| 123 | @Override
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| 124 | protected void realRun() throws SAXException, IOException, OsmTransferException {
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| 125 | try {
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| 126 | JosmUserIdentityManager im = JosmUserIdentityManager.getInstance();
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| 127 | if (im.isAnonymous()) {
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| 128 | refreshUserIdentity();
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| 129 | } else if (im.isFullyIdentified()) {
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| 130 | // do nothing
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| 131 | } else if (im.isPartiallyIdentified()) {
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| 132 | refreshUserIdentity();
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| 133 | }
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| 134 | if (canceled) return;
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| 135 | synchronized (this) {
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| 136 | reader = new OsmServerChangesetReader();
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| 137 | }
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| 138 | ChangesetQuery query = new ChangesetQuery().beingOpen(true);
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| 139 | if (im.isAnonymous())
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| 140 | // we still don't know anything about the current user. Can't retrieve
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| 141 | // its changesets
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| 142 | return;
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| 143 | else if (im.isFullyIdentified()) {
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| 144 | query = query.forUser(im.getUserId());
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| 145 | } else {
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| 146 | // we only know the users name, not its id. Nevermind, try to read
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| 147 | // its open changesets anyway.
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| 148 | //
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| 149 | query = query.forUser(im.getUserName());
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| 150 | }
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| 151 | changesets = reader.queryChangesets(
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| 152 | query,
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| 153 | getProgressMonitor().createSubTaskMonitor(1, false /* not internal */)
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| 154 | );
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| 155 | } catch (Exception e) {
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| 156 | if (canceled)
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| 157 | return;
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| 158 | lastException = e;
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| 159 | }
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| 160 | }
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| 161 |
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| 162 | public boolean isCanceled() {
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| 163 | return canceled;
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| 164 | }
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| 165 | }
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