code.grnet.gr Git - pithos-web-client/blob - src/gr/grnet/pithos/web/client/Pithos.java

   1 /*
   2  * Copyright 2011-2012 GRNET S.A. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or
   5  * without modification, are permitted provided that the following
   6  * conditions are met:
   7  *
   8  *   1. Redistributions of source code must retain the above
   9  *      copyright notice, this list of conditions and the following
  10  *      disclaimer.
  11  *
  12  *   2. Redistributions in binary form must reproduce the above
  13  *      copyright notice, this list of conditions and the following
  14  *      disclaimer in the documentation and/or other materials
  15  *      provided with the distribution.
  16  *
  17  * THIS SOFTWARE IS PROVIDED BY GRNET S.A. ``AS IS'' AND ANY EXPRESS
  18  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  19  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  20  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GRNET S.A OR
  21  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  24  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
  25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  27  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  28  * POSSIBILITY OF SUCH DAMAGE.
  29  *
  30  * The views and conclusions contained in the software and
  31  * documentation are those of the authors and should not be
  32  * interpreted as representing official policies, either expressed
  33  * or implied, of GRNET S.A.
  34  */
  35 package gr.grnet.pithos.web.client;
  36
  37 import gr.grnet.pithos.web.client.commands.UploadFileCommand;
  38 import gr.grnet.pithos.web.client.foldertree.AccountResource;
  39 import gr.grnet.pithos.web.client.foldertree.File;
  40 import gr.grnet.pithos.web.client.foldertree.Folder;
  41 import gr.grnet.pithos.web.client.foldertree.FolderTreeView;
  42 import gr.grnet.pithos.web.client.foldertree.FolderTreeViewModel;
  43 import gr.grnet.pithos.web.client.foldertree.Resource;
  44 import gr.grnet.pithos.web.client.grouptree.Group;
  45 import gr.grnet.pithos.web.client.grouptree.GroupTreeView;
  46 import gr.grnet.pithos.web.client.grouptree.GroupTreeViewModel;
  47 import gr.grnet.pithos.web.client.mysharedtree.MysharedTreeView;
  48 import gr.grnet.pithos.web.client.mysharedtree.MysharedTreeViewModel;
  49 import gr.grnet.pithos.web.client.othersharedtree.OtherSharedTreeView;
  50 import gr.grnet.pithos.web.client.othersharedtree.OtherSharedTreeViewModel;
  51 import gr.grnet.pithos.web.client.rest.DeleteRequest;
  52 import gr.grnet.pithos.web.client.rest.GetRequest;
  53 import gr.grnet.pithos.web.client.rest.HeadRequest;
  54 import gr.grnet.pithos.web.client.rest.PutRequest;
  55 import gr.grnet.pithos.web.client.rest.RestException;
  56 import gr.grnet.pithos.web.client.tagtree.Tag;
  57
  58 import java.util.ArrayList;
  59 import java.util.HashMap;
  60 import java.util.Iterator;
  61 import java.util.List;
  62 import java.util.Set;
  63
  64 import com.google.gwt.core.client.EntryPoint;
  65 import com.google.gwt.core.client.GWT;
  66 import com.google.gwt.core.client.Scheduler;
  67 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
  68 import com.google.gwt.event.dom.client.ClickEvent;
  69 import com.google.gwt.event.dom.client.ClickHandler;
  70 import com.google.gwt.event.logical.shared.ResizeEvent;
  71 import com.google.gwt.event.logical.shared.ResizeHandler;
  72 import com.google.gwt.http.client.Request;
  73 import com.google.gwt.http.client.RequestBuilder;
  74 import com.google.gwt.http.client.RequestCallback;
  75 import com.google.gwt.http.client.RequestException;
  76 import com.google.gwt.http.client.Response;
  77 import com.google.gwt.http.client.URL;
  78 import com.google.gwt.i18n.client.NumberFormat;
  79 import com.google.gwt.json.client.JSONArray;
  80 import com.google.gwt.json.client.JSONObject;
  81 import com.google.gwt.json.client.JSONParser;
  82 import com.google.gwt.json.client.JSONString;
  83 import com.google.gwt.json.client.JSONValue;
  84 import com.google.gwt.resources.client.ImageResource;
  85 import com.google.gwt.resources.client.ImageResource.ImageOptions;
  86 import com.google.gwt.user.client.Command;
  87 import com.google.gwt.user.client.Cookies;
  88 import com.google.gwt.user.client.Event;
  89 import com.google.gwt.user.client.History;
  90 import com.google.gwt.user.client.Window;
  91 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  92 import com.google.gwt.user.client.ui.Button;
  93 import com.google.gwt.user.client.ui.Composite;
  94 import com.google.gwt.user.client.ui.HTML;
  95 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  96 import com.google.gwt.user.client.ui.HasVerticalAlignment;
  97 import com.google.gwt.user.client.ui.HorizontalPanel;
  98 import com.google.gwt.user.client.ui.HorizontalSplitPanel;
  99 import com.google.gwt.user.client.ui.RootPanel;
 100 import com.google.gwt.user.client.ui.VerticalPanel;
 101 import com.google.gwt.view.client.SelectionChangeEvent;
 102 import com.google.gwt.view.client.SelectionChangeEvent.Handler;
 103 import com.google.gwt.view.client.SingleSelectionModel;
 104
 105 /**
 106  * Entry point classes define <code>onModuleLoad()</code>.
 107  */
 108 public class Pithos implements EntryPoint, ResizeHandler {
 109
 110         public static final String HOME_CONTAINER = "pithos";
 111
 112         public static final String TRASH_CONTAINER = "trash";
 113
 114         public static final Configuration config = GWT.create(Configuration.class);
 115
 116         /**
 117          * Instantiate an application-level image bundle. This object will provide
 118          * programmatic access to all the images needed by widgets.
 119          */
 120         static Images images = (Images) GWT.create(Images.class);
 121
 122     public String getUsername() {
 123         return username;
 124     }
 125
 126     public void setAccount(AccountResource acct) {
 127         account = acct;
 128     }
 129
 130     public AccountResource getAccount() {
 131         return account;
 132     }
 133
 134     public void updateFolder(Folder f, boolean showfiles, Command callback) {
 135         folderTreeView.updateFolder(f, showfiles, callback);
 136     }
 137
 138     public void updateGroupNode(Group group) {
 139         groupTreeView.updateGroupNode(group);
 140     }
 141
 142     public void updateMySharedRoot() {
 143         mysharedTreeView.updateRoot();
 144     }
 145
 146     public void updateSharedFolder(Folder f, boolean showfiles) {
 147         mysharedTreeView.updateFolder(f, showfiles);
 148     }
 149
 150     public void updateOtherSharedFolder(Folder f, boolean showfiles) {
 151         otherSharedTreeView.updateFolder(f, showfiles);
 152     }
 153
 154     public List<Tag> getAllTags() {
 155         List<Tag> tagList = new ArrayList<Tag>();
 156         for (Folder f : account.getContainers()) {
 157             for (String t : f.getTags()) {
 158                 tagList.add(new Tag(t));
 159             }
 160         }
 161         return tagList;
 162     }
 163
 164     public MysharedTreeView getMySharedTreeView() {
 165         return mysharedTreeView;
 166     }
 167
 168     /**
 169          * An aggregate image bundle that pulls together all the images for this
 170          * application into a single bundle.
 171          */
 172         public interface Images extends TopPanel.Images, FileList.Images, ToolsMenu.Images {
 173
 174                 @Source("gr/grnet/pithos/resources/document.png")
 175                 ImageResource folders();
 176
 177                 @Source("gr/grnet/pithos/resources/advancedsettings.png")
 178                 @ImageOptions(width=32, height=32)
 179                 ImageResource tools();
 180         }
 181
 182         private Throwable error;
 183
 184         /**
 185          * The Application Clipboard implementation;
 186          */
 187         private Clipboard clipboard = new Clipboard();
 188
 189         /**
 190          * The top panel that contains the menu bar.
 191          */
 192         private TopPanel topPanel;
 193
 194         /**
 195          * The panel that contains the various system messages.
 196          */
 197         private MessagePanel messagePanel = new MessagePanel(this, Pithos.images);
 198
 199         /**
 200          * The bottom panel that contains the status bar.
 201          */
 202         private StatusPanel statusPanel = null;
 203
 204         /**
 205          * The file list widget.
 206          */
 207         private FileList fileList;
 208
 209         /**
 210          * The tab panel that occupies the right side of the screen.
 211          */
 212         private VerticalPanel inner = new VerticalPanel();
 213
 214
 215         /**
 216          * The split panel that will contain the left and right panels.
 217          */
 218         private HorizontalSplitPanel splitPanel = new HorizontalSplitPanel();
 219
 220         /**
 221          * The currently selected item in the application, for use by the Edit menu
 222          * commands. Potential types are Folder, File, User and Group.
 223          */
 224         private Object currentSelection;
 225
 226         public HashMap<String, String> userFullNameMap = new HashMap<String, String>();
 227
 228     private String username = null;
 229
 230     /**
 231      * The authentication token of the current user.
 232      */
 233     private String token;
 234
 235     VerticalPanel trees;
 236
 237     SingleSelectionModel<Folder> folderTreeSelectionModel;
 238     FolderTreeViewModel folderTreeViewModel;
 239     FolderTreeView folderTreeView;
 240
 241     SingleSelectionModel<Folder> mysharedTreeSelectionModel;
 242     MysharedTreeViewModel mysharedTreeViewModel;
 243     MysharedTreeView mysharedTreeView = null;;
 244
 245     protected SingleSelectionModel<Folder> otherSharedTreeSelectionModel;
 246     OtherSharedTreeViewModel otherSharedTreeViewModel;
 247     OtherSharedTreeView otherSharedTreeView = null;
 248
 249     GroupTreeViewModel groupTreeViewModel;
 250     private GroupTreeView groupTreeView;
 251
 252     TreeView selectedTree;
 253     protected AccountResource account;
 254
 255     Folder trash;
 256
 257     List<Composite> treeViews = new ArrayList<Composite>();
 258
 259     @SuppressWarnings("rawtypes") List<SingleSelectionModel> selectionModels = new ArrayList<SingleSelectionModel>();
 260
 261     Button upload;
 262
 263     private HTML usedBytes;
 264
 265     private HTML totalBytes;
 266
 267     private HTML usedPercent;
 268
 269     private HTML numOfFiles;
 270
 271     private Toolbar toolbar;
 272
 273         @Override
 274         public void onModuleLoad() {
 275                 if (parseUserCredentials())
 276             initialize();
 277         }
 278
 279     private void initialize() {
 280         boolean bareContent = Window.Location.getParameter("noframe") != null;
 281         String contentWidth = bareContent ? "100%" : "75%";
 282
 283         VerticalPanel outer = new VerticalPanel();
 284         outer.setWidth("100%");
 285         if (!bareContent) {
 286                 outer.addStyleName("pithos-outer");
 287         }
 288
 289         if (!bareContent) {
 290                 topPanel = new TopPanel(this, Pithos.images);
 291                 topPanel.setWidth("100%");
 292                 outer.add(topPanel);
 293                 outer.setCellHorizontalAlignment(topPanel, HasHorizontalAlignment.ALIGN_CENTER);
 294         }
 295
 296         messagePanel.setVisible(false);
 297         outer.add(messagePanel);
 298         outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 299         outer.setCellVerticalAlignment(messagePanel, HasVerticalAlignment.ALIGN_MIDDLE);
 300
 301         HorizontalPanel header = new HorizontalPanel();
 302         header.addStyleName("pithos-header");
 303         header.setWidth(contentWidth);
 304         if (bareContent)
 305                 header.addStyleName("pithos-header-noframe");
 306         upload = new Button("Upload File", new ClickHandler() {
 307             @Override
 308             public void onClick(ClickEvent event) {
 309                 if (getSelection() != null)
 310                         new UploadFileCommand(Pithos.this, null, getSelection()).execute();
 311             }
 312         });
 313         upload.addStyleName("pithos-uploadButton");
 314         header.add(upload);
 315         header.setCellHorizontalAlignment(upload, HasHorizontalAlignment.ALIGN_LEFT);
 316         header.setCellVerticalAlignment(upload, HasVerticalAlignment.ALIGN_MIDDLE);
 317
 318         toolbar = new Toolbar(this);
 319         header.add(toolbar);
 320         header.setCellHorizontalAlignment(toolbar, HasHorizontalAlignment.ALIGN_CENTER);
 321         header.setCellVerticalAlignment(toolbar, HasVerticalAlignment.ALIGN_MIDDLE);
 322
 323         HorizontalPanel folderStatistics = new HorizontalPanel();
 324         folderStatistics.addStyleName("pithos-folderStatistics");
 325         numOfFiles = new HTML();
 326         folderStatistics.add(numOfFiles);
 327         folderStatistics.setCellVerticalAlignment(numOfFiles, HasVerticalAlignment.ALIGN_MIDDLE);
 328         HTML numOfFilesLabel = new HTML("&nbsp;Files");
 329         folderStatistics.add(numOfFilesLabel);
 330         folderStatistics.setCellVerticalAlignment(numOfFilesLabel, HasVerticalAlignment.ALIGN_MIDDLE);
 331         header.add(folderStatistics);
 332         header.setCellHorizontalAlignment(folderStatistics, HasHorizontalAlignment.ALIGN_RIGHT);
 333         header.setCellVerticalAlignment(folderStatistics, HasVerticalAlignment.ALIGN_MIDDLE);
 334         header.setCellWidth(folderStatistics, "40px");
 335         outer.add(header);
 336         outer.setCellHorizontalAlignment(header, HasHorizontalAlignment.ALIGN_CENTER);
 337         // Inner contains the various lists.nner
 338         inner.sinkEvents(Event.ONCONTEXTMENU);
 339         inner.setWidth("100%");
 340
 341         folderTreeSelectionModel = new SingleSelectionModel<Folder>();
 342         folderTreeSelectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
 343             @Override
 344             public void onSelectionChange(SelectionChangeEvent event) {
 345                 if (folderTreeSelectionModel.getSelectedObject() != null) {
 346                     deselectOthers(folderTreeView, folderTreeSelectionModel);
 347                     applyPermissions(folderTreeSelectionModel.getSelectedObject());
 348                     Folder f = folderTreeSelectionModel.getSelectedObject();
 349                         updateFolder(f, true, new Command() {
 350
 351                                 @Override
 352                                 public void execute() {
 353                                         updateStatistics();
 354                                 }
 355                         });
 356                 }
 357                 showRelevantToolbarButtons();
 358             }
 359         });
 360         selectionModels.add(folderTreeSelectionModel);
 361
 362         folderTreeViewModel = new FolderTreeViewModel(this, folderTreeSelectionModel);
 363         folderTreeView = new FolderTreeView(folderTreeViewModel);
 364         treeViews.add(folderTreeView);
 365
 366         fileList = new FileList(this, images, folderTreeView);
 367         inner.add(fileList);
 368
 369         groupTreeViewModel = new GroupTreeViewModel(this);
 370         groupTreeView = new GroupTreeView(groupTreeViewModel);
 371         treeViews.add(groupTreeView);
 372
 373         trees = new VerticalPanel();
 374         trees.setWidth("100%");
 375
 376
 377         HorizontalPanel treeHeader = new HorizontalPanel();
 378         treeHeader.addStyleName("pithos-treeHeader");
 379         treeHeader.setHorizontalAlignment(HasHorizontalAlignment.ALIGN_CENTER);
 380         treeHeader.setVerticalAlignment(HasVerticalAlignment.ALIGN_MIDDLE);
 381         HorizontalPanel statistics = new HorizontalPanel();
 382         statistics.addStyleName("pithos-statistics");
 383         statistics.add(new HTML("Used:&nbsp;"));
 384         usedBytes = new HTML();
 385         statistics.add(usedBytes);
 386         statistics.add(new HTML("&nbsp;of&nbsp;"));
 387         totalBytes = new HTML();
 388         statistics.add(totalBytes);
 389         statistics.add(new HTML("&nbsp;("));
 390         usedPercent = new HTML();
 391         statistics.add(usedPercent);
 392         statistics.add(new HTML(")"));
 393         treeHeader.add(statistics);
 394         treeHeader.setCellHorizontalAlignment(statistics, HasHorizontalAlignment.ALIGN_LEFT);
 395         trees.add(treeHeader);
 396
 397         trees.add(folderTreeView);
 398         trees.add(groupTreeView);
 399         // Add the left and right panels to the split panel.
 400         splitPanel.setLeftWidget(trees);
 401         splitPanel.setRightWidget(inner);
 402         splitPanel.setSplitPosition("35%");
 403         splitPanel.setSize("100%", "100%");
 404         splitPanel.addStyleName("pithos-splitPanel");
 405         splitPanel.setWidth(contentWidth);
 406         outer.add(splitPanel);
 407         outer.setCellHorizontalAlignment(splitPanel, HasHorizontalAlignment.ALIGN_CENTER);
 408
 409         if (!bareContent) {
 410                 statusPanel = new StatusPanel();
 411                 statusPanel.setWidth("100%");
 412                 outer.add(statusPanel);
 413                 outer.setCellHorizontalAlignment(statusPanel, HasHorizontalAlignment.ALIGN_CENTER);
 414         }
 415         else
 416                 splitPanel.addStyleName("pithos-splitPanel-noframe");
 417
 418         // Hook the window resize event, so that we can adjust the UI.
 419         Window.addResizeHandler(this);
 420         // Clear out the window's built-in margin, because we want to take
 421         // advantage of the entire client area.
 422         Window.setMargin("0px");
 423         // Finally, add the outer panel to the RootPanel, so that it will be
 424         // displayed.
 425         RootPanel.get().add(outer);
 426         // Call the window resized handler to get the initial sizes setup. Doing
 427         // this in a deferred command causes it to occur after all widgets'
 428         // sizes have been computed by the browser.
 429         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 430
 431             @Override
 432             public void execute() {
 433                 onWindowResized(Window.getClientHeight());
 434             }
 435         });
 436
 437         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 438             @Override
 439             public void execute() {
 440                 fetchAccount(new Command() {
 441
 442                                         @Override
 443                                         public void execute() {
 444                                 if (!account.hasHomeContainer())
 445                                     createHomeContainer(account, this);
 446                                 else if (!account.hasTrashContainer())
 447                                         createTrashContainer(this);
 448                                 else {
 449                                         for (Folder f : account.getContainers())
 450                                                 if (f.getName().equals(Pithos.TRASH_CONTAINER)) {
 451                                                         trash = f;
 452                                                         break;
 453                                                 }
 454                                     folderTreeViewModel.initialize(account, new Command() {
 455
 456                                                                 @Override
 457                                                                 public void execute() {
 458                                                     createMySharedTree();
 459                                                                 }
 460                                                         });
 461                                     groupTreeViewModel.initialize();
 462                                     showStatistics();
 463                                 }
 464                                         }
 465                                 });
 466             }
 467         });
 468
 469 //        Scheduler.get().scheduleDeferred(new Command() {
 470 //
 471 //                      @Override
 472 //                      public void execute() {
 473 //                              displayError("lalala");
 474 //
 475 //                      }
 476 //              });
 477     }
 478
 479     public void applyPermissions(Folder f) {
 480         if (f != null) {
 481                 if (f.isInTrash())
 482                         upload.setEnabled(false);
 483                 else {
 484                         Boolean[] perms = f.getPermissions().get(username);
 485                         if (f.getOwner().equals(username) || (perms != null && perms[1] != null && perms[1])) {
 486                                 upload.setEnabled(true);
 487                         }
 488                         else
 489                                 upload.setEnabled(false);
 490                 }
 491         }
 492         else
 493                 upload.setEnabled(false);
 494         }
 495
 496         @SuppressWarnings({ "rawtypes", "unchecked" })
 497         public void deselectOthers(TreeView _selectedTree, SingleSelectionModel model) {
 498         selectedTree = _selectedTree;
 499
 500         for (Composite c : treeViews)
 501                 if (c.equals(selectedTree))
 502                         c.addStyleName("cellTreeWidget-selectedTree");
 503                 else
 504                         c.removeStyleName("cellTreeWidget-selectedTree");
 505
 506         for (SingleSelectionModel s : selectionModels)
 507             if (!s.equals(model))
 508                 s.setSelected(s.getSelectedObject(), false);
 509     }
 510
 511     public void showFiles(final Folder f) {
 512         Set<File> files = f.getFiles();
 513         showFiles(files);
 514     }
 515
 516     public void showFiles(Set<File> files) {
 517         fileList.setFiles(new ArrayList<File>(files));
 518     }
 519
 520     protected void fetchFile(final Iterator<File> iter, final Set<File> files) {
 521         if (iter.hasNext()) {
 522             File file = iter.next();
 523             String path = file.getUri() + "?format=json";
 524             GetRequest<File> getFile = new GetRequest<File>(File.class, getApiPath(), username, path, file) {
 525                 @Override
 526                 public void onSuccess(File _result) {
 527                     fetchFile(iter, files);
 528                 }
 529
 530                 @Override
 531                 public void onError(Throwable t) {
 532                     GWT.log("Error getting file", t);
 533                                         setError(t);
 534                     if (t instanceof RestException)
 535                         displayError("Error getting file: " + ((RestException) t).getHttpStatusText());
 536                     else
 537                         displayError("System error fetching file: " + t.getMessage());
 538                 }
 539
 540                                 @Override
 541                                 protected void onUnauthorized(Response response) {
 542                                         sessionExpired();
 543                                 }
 544             };
 545             getFile.setHeader("X-Auth-Token", "0000");
 546             Scheduler.get().scheduleDeferred(getFile);
 547         }
 548         else
 549             fileList.setFiles(new ArrayList<File>(files));
 550     }
 551
 552     /**
 553          * Parse and store the user credentials to the appropriate fields.
 554          */
 555         private boolean parseUserCredentials() {
 556         username = Window.Location.getParameter("user");
 557         token = Window.Location.getParameter("token");
 558         Configuration conf = (Configuration) GWT.create(Configuration.class);
 559         if (username == null || username.length() == 0 || token == null || token.length() == 0) {
 560             String cookie = conf.authCookie();
 561             String auth = Cookies.getCookie(cookie);
 562             if (auth == null) {
 563                 authenticateUser();
 564                 return false;
 565             }
 566             if (auth.startsWith("\""))
 567                 auth = auth.substring(1);
 568             if (auth.endsWith("\""))
 569                 auth = auth.substring(0, auth.length() - 1);
 570                         String[] authSplit = auth.split("\\" + conf.cookieSeparator(), 2);
 571                         if (authSplit.length != 2) {
 572                             authenticateUser();
 573                             return false;
 574                         }
 575                         username = authSplit[0];
 576                         token = authSplit[1];
 577                         return true;
 578         }
 579
 580                 Cookies.setCookie(conf.authCookie(), username + conf.cookieSeparator() + token, null, "", "/", false);
 581                 return true;
 582     }
 583
 584     /**
 585          * Redirect the user to the login page for authentication.
 586          */
 587         protected void authenticateUser() {
 588         Window.Location.assign(config.loginUrl());
 589         }
 590
 591         protected void fetchAccount(final Command callback) {
 592         String path = "?format=json";
 593
 594         GetRequest<AccountResource> getAccount = new GetRequest<AccountResource>(AccountResource.class, getApiPath(), username, path) {
 595             @Override
 596             public void onSuccess(AccountResource _result) {
 597                 account = _result;
 598                 if (callback != null)
 599                         callback.execute();
 600             }
 601
 602             @Override
 603             public void onError(Throwable t) {
 604                 GWT.log("Error getting account", t);
 605                                 setError(t);
 606                 if (t instanceof RestException)
 607                     displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 608                 else
 609                     displayError("System error fetching user data: " + t.getMessage());
 610             }
 611
 612                         @Override
 613                         protected void onUnauthorized(Response response) {
 614                                 sessionExpired();
 615                         }
 616         };
 617         getAccount.setHeader("X-Auth-Token", token);
 618         Scheduler.get().scheduleDeferred(getAccount);
 619     }
 620
 621     public void updateStatistics() {
 622         HeadRequest<AccountResource> headAccount = new HeadRequest<AccountResource>(AccountResource.class, getApiPath(), username, "", account) {
 623
 624                         @Override
 625                         public void onSuccess(AccountResource _result) {
 626                                 showStatistics();
 627                         }
 628
 629                         @Override
 630                         public void onError(Throwable t) {
 631                 GWT.log("Error getting account", t);
 632                                 setError(t);
 633                 if (t instanceof RestException)
 634                     displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 635                 else
 636                     displayError("System error fetching user data: " + t.getMessage());
 637                         }
 638
 639                         @Override
 640                         protected void onUnauthorized(Response response) {
 641                                 sessionExpired();
 642                         }
 643                 };
 644                 headAccount.setHeader("X-Auth-Token", token);
 645                 Scheduler.get().scheduleDeferred(headAccount);
 646         }
 647
 648         protected void showStatistics() {
 649         usedBytes.setHTML(String.valueOf(account.getFileSizeAsString()));
 650         totalBytes.setHTML(String.valueOf(account.getQuotaAsString()));
 651         NumberFormat nf = NumberFormat.getPercentFormat();
 652         usedPercent.setHTML(nf.format(account.getUsedPercentage()));
 653         }
 654
 655         protected void createHomeContainer(final AccountResource _account, final Command callback) {
 656         String path = "/" + Pithos.HOME_CONTAINER;
 657         PutRequest createPithos = new PutRequest(getApiPath(), getUsername(), path) {
 658             @Override
 659             public void onSuccess(Resource result) {
 660                 if (!_account.hasTrashContainer())
 661                         createTrashContainer(callback);
 662                 else
 663                         fetchAccount(callback);
 664             }
 665
 666             @Override
 667             public void onError(Throwable t) {
 668                 GWT.log("Error creating pithos", t);
 669                                 setError(t);
 670                 if (t instanceof RestException)
 671                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 672                 else
 673                     displayError("System error Error creating pithos: " + t.getMessage());
 674             }
 675
 676                         @Override
 677                         protected void onUnauthorized(Response response) {
 678                                 sessionExpired();
 679                         }
 680         };
 681         createPithos.setHeader("X-Auth-Token", getToken());
 682         Scheduler.get().scheduleDeferred(createPithos);
 683     }
 684
 685     protected void createTrashContainer(final Command callback) {
 686         String path = "/" + Pithos.TRASH_CONTAINER;
 687         PutRequest createPithos = new PutRequest(getApiPath(), getUsername(), path) {
 688             @Override
 689             public void onSuccess(Resource result) {
 690                         fetchAccount(callback);
 691             }
 692
 693             @Override
 694             public void onError(Throwable t) {
 695                 GWT.log("Error creating pithos", t);
 696                                 setError(t);
 697                 if (t instanceof RestException)
 698                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 699                 else
 700                     displayError("System error Error creating pithos: " + t.getMessage());
 701             }
 702
 703                         @Override
 704                         protected void onUnauthorized(Response response) {
 705                                 sessionExpired();
 706                         }
 707         };
 708         createPithos.setHeader("X-Auth-Token", getToken());
 709         Scheduler.get().scheduleDeferred(createPithos);
 710     }
 711
 712     /**
 713          * Creates an HTML fragment that places an image & caption together, for use
 714          * in a group header.
 715          *
 716          * @param imageProto an image prototype for an image
 717          * @param caption the group caption
 718          * @return the header HTML fragment
 719          */
 720         private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
 721                 String captionHTML = "<table class='caption' cellpadding='0' "
 722                 + "cellspacing='0'>" + "<tr><td class='lcaption'>" + imageProto.getHTML()
 723                 + "</td><td id =" + caption +" class='rcaption'><b style='white-space:nowrap'>&nbsp;"
 724                 + caption + "</b></td></tr></table>";
 725                 return captionHTML;
 726         }
 727
 728         protected void onWindowResized(int height) {
 729                 // Adjust the split panel to take up the available room in the window.
 730                 int newHeight = height - splitPanel.getAbsoluteTop();
 731                 if (newHeight < 1)
 732                         newHeight = 1;
 733                 splitPanel.setHeight("" + newHeight);
 734                 inner.setHeight("" + newHeight);
 735         }
 736
 737         @Override
 738         public void onResize(ResizeEvent event) {
 739                 int height = event.getHeight();
 740                 onWindowResized(height);
 741         }
 742
 743         /**
 744          * Display an error message.
 745          *
 746          * @param msg the message to display
 747          */
 748         public void displayError(String msg) {
 749                 messagePanel.displayError(msg);
 750         }
 751
 752         /**
 753          * Display a warning message.
 754          *
 755          * @param msg the message to display
 756          */
 757         public void displayWarning(String msg) {
 758                 messagePanel.displayWarning(msg);
 759         }
 760
 761         /**
 762          * Display an informational message.
 763          *
 764          * @param msg the message to display
 765          */
 766         public void displayInformation(String msg) {
 767                 messagePanel.displayInformation(msg);
 768         }
 769
 770         /**
 771          * Retrieve the fileList.
 772          *
 773          * @return the fileList
 774          */
 775         public FileList getFileList() {
 776                 return fileList;
 777         }
 778
 779         /**
 780          * Retrieve the topPanel.
 781          *
 782          * @return the topPanel
 783          */
 784         TopPanel getTopPanel() {
 785                 return topPanel;
 786         }
 787
 788         /**
 789          * Retrieve the clipboard.
 790          *
 791          * @return the clipboard
 792          */
 793         public Clipboard getClipboard() {
 794                 return clipboard;
 795         }
 796
 797         public StatusPanel getStatusPanel() {
 798                 return statusPanel;
 799         }
 800
 801         public String getToken() {
 802                 return token;
 803         }
 804
 805         public static native void preventIESelection() /*-{
 806                 $doc.body.onselectstart = function () { return false; };
 807         }-*/;
 808
 809         public static native void enableIESelection() /*-{
 810                 if ($doc.body.onselectstart != null)
 811                 $doc.body.onselectstart = null;
 812         }-*/;
 813
 814         /**
 815          * @return the absolute path of the API root URL
 816          */
 817         public String getApiPath() {
 818                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 819                 return conf.apiPath();
 820         }
 821
 822         /**
 823          * History support for folder navigation
 824          * adds a new browser history entry
 825          *
 826          * @param key
 827          */
 828         public void updateHistory(String key){
 829 //              Replace any whitespace of the initial string to "+"
 830 //              String result = key.replaceAll("\\s","+");
 831 //              Add a new browser history entry.
 832 //              History.newItem(result);
 833                 History.newItem(key);
 834         }
 835
 836     public void deleteFolder(final Folder folder) {
 837         String path = getApiPath() + folder.getOwner() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(folder.getPrefix()) + "&t=" + System.currentTimeMillis();
 838         RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);
 839         builder.setHeader("X-Auth-Token", getToken());
 840         try {
 841             builder.sendRequest("", new RequestCallback() {
 842                 @Override
 843                 public void onResponseReceived(Request request, Response response) {
 844                     if (response.getStatusCode() == Response.SC_OK) {
 845                         JSONValue json = JSONParser.parseStrict(response.getText());
 846                         JSONArray array = json.isArray();
 847                         int i = 0;
 848                         if (array != null) {
 849                             deleteObject(folder, i, array);
 850                         }
 851                     }
 852                 }
 853
 854                 @Override
 855                 public void onError(Request request, Throwable exception) {
 856                         setError(exception);
 857                     displayError("System error unable to delete folder: " + exception.getMessage());
 858                 }
 859             });
 860         }
 861         catch (RequestException e) {
 862         }
 863     }
 864
 865     void deleteObject(final Folder folder, final int i, final JSONArray array) {
 866         if (i < array.size()) {
 867             JSONObject o = array.get(i).isObject();
 868             if (o != null && !o.containsKey("subdir")) {
 869                 JSONString name = o.get("name").isString();
 870                 String path = "/" + folder.getContainer() + "/" + name.stringValue();
 871                 DeleteRequest delete = new DeleteRequest(getApiPath(), folder.getOwner(), URL.encode(path)) {
 872                     @Override
 873                     public void onSuccess(Resource result) {
 874                         deleteObject(folder, i + 1, array);
 875                     }
 876
 877                     @Override
 878                     public void onError(Throwable t) {
 879                         GWT.log("", t);
 880                                                 setError(t);
 881                         displayError("System error unable to delete folder: " + t.getMessage());
 882                     }
 883
 884                                 @Override
 885                                 protected void onUnauthorized(Response response) {
 886                                         sessionExpired();
 887                                 }
 888                 };
 889                 delete.setHeader("X-Auth-Token", getToken());
 890                 Scheduler.get().scheduleDeferred(delete);
 891             }
 892             else if (o != null) {
 893                 String subdir = o.get("subdir").isString().stringValue();
 894                 subdir = subdir.substring(0, subdir.length() - 1);
 895                 String path = getApiPath() + getUsername() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(subdir) + "&t=" + System.currentTimeMillis();
 896                 RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);
 897                 builder.setHeader("X-Auth-Token", getToken());
 898                 try {
 899                     builder.sendRequest("", new RequestCallback() {
 900                         @Override
 901                         public void onResponseReceived(Request request, Response response) {
 902                             if (response.getStatusCode() == Response.SC_OK) {
 903                                 JSONValue json = JSONParser.parseStrict(response.getText());
 904                                 JSONArray array2 = json.isArray();
 905                                 if (array2 != null) {
 906                                     int l = array.size();
 907                                     for (int j=0; j<array2.size(); j++) {
 908                                         array.set(l++, array2.get(j));
 909                                     }
 910                                 }
 911                                 deleteObject(folder, i + 1, array);
 912                             }
 913                         }
 914
 915                         @Override
 916                         public void onError(Request request, Throwable exception) {
 917                                 setError(exception);
 918                             displayError("System error unable to delete folder: " + exception.getMessage());
 919                         }
 920                     });
 921                 }
 922                 catch (RequestException e) {
 923                 }
 924             }
 925         }
 926         else {
 927             String path = folder.getUri();
 928             DeleteRequest deleteFolder = new DeleteRequest(getApiPath(), getUsername(), URL.encode(path)) {
 929                 @Override
 930                 public void onSuccess(Resource result) {
 931                     updateFolder(folder.getParent(), true, new Command() {
 932
 933                                                 @Override
 934                                                 public void execute() {
 935                                                         updateStatistics();
 936                                                 }
 937                                         });
 938                 }
 939
 940                 @Override
 941                 public void onError(Throwable t) {
 942                     GWT.log("", t);
 943                                         setError(t);
 944                     if (t instanceof RestException) {
 945                         if (((RestException) t).getHttpStatusCode() != Response.SC_NOT_FOUND)
 946                                 displayError("Unable to delete folder: "+((RestException) t).getHttpStatusText());
 947                         else
 948                                 onSuccess(null);
 949                     }
 950                     else
 951                         displayError("System error unable to delete folder: " + t.getMessage());
 952                 }
 953
 954                                 @Override
 955                                 protected void onUnauthorized(Response response) {
 956                                         sessionExpired();
 957                                 }
 958             };
 959             deleteFolder.setHeader("X-Auth-Token", getToken());
 960             Scheduler.get().scheduleDeferred(deleteFolder);
 961         }
 962     }
 963
 964     public FolderTreeView getFolderTreeView() {
 965         return folderTreeView;
 966     }
 967
 968     public void copyFiles(final Iterator<File> iter, final String targetUsername, final String targetUri, final Command callback) {
 969         if (iter.hasNext()) {
 970             File file = iter.next();
 971             String path = targetUri + "/" + file.getName();
 972             PutRequest copyFile = new PutRequest(getApiPath(), targetUsername, path) {
 973                 @Override
 974                 public void onSuccess(Resource result) {
 975                     copyFiles(iter, targetUsername, targetUri, callback);
 976                 }
 977
 978                 @Override
 979                 public void onError(Throwable t) {
 980                     GWT.log("", t);
 981                                         setError(t);
 982                     if (t instanceof RestException) {
 983                         displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
 984                     }
 985                     else
 986                         displayError("System error unable to copy file: "+t.getMessage());
 987                 }
 988
 989                                 @Override
 990                                 protected void onUnauthorized(Response response) {
 991                                         sessionExpired();
 992                                 }
 993             };
 994             copyFile.setHeader("X-Auth-Token", getToken());
 995             copyFile.setHeader("X-Copy-From", URL.encodePathSegment(file.getUri()));
 996             if (!file.getOwner().equals(targetUsername))
 997                 copyFile.setHeader("X-Source-Account", URL.encodePathSegment(file.getOwner()));
 998             copyFile.setHeader("Content-Type", file.getContentType());
 999             Scheduler.get().scheduleDeferred(copyFile);
1000         }
1001         else  if (callback != null) {
1002             callback.execute();
1003         }
1004     }
1005
1006     public void copySubfolders(final Iterator<Folder> iter, final String targetUsername, final String targetUri, final Command callback) {
1007         if (iter.hasNext()) {
1008             final Folder f = iter.next();
1009             copyFolder(f, targetUsername, targetUri, new Command() {
1010
1011                                 @Override
1012                                 public void execute() {
1013                                         copySubfolders(iter, targetUsername, targetUri, callback);
1014                                 }
1015                         });
1016         }
1017         else  if (callback != null) {
1018             callback.execute();
1019         }
1020     }
1021
1022     public void copyFolder(final Folder f, final String targetUsername, final String targetUri, final Command callback) {
1023         String path = targetUri + "/" + f.getName();
1024         PutRequest createFolder = new PutRequest(getApiPath(), targetUsername, path) {
1025             @Override
1026             public void onSuccess(Resource result) {
1027                 GetRequest<Folder> getFolder = new GetRequest<Folder>(Folder.class, getApiPath(), f.getOwner(), "/" + f.getContainer() + "?format=json&delimiter=/&prefix=" + URL.encodeQueryString(f.getPrefix()), f) {
1028
1029                                         @Override
1030                                         public void onSuccess(final Folder _f) {
1031                                 Iterator<File> iter = _f.getFiles().iterator();
1032                                 copyFiles(iter, targetUsername, targetUri + "/" + _f.getName(), new Command() {
1033                                     @Override
1034                                     public void execute() {
1035                                         Iterator<Folder> iterf = _f.getSubfolders().iterator();
1036                                         copySubfolders(iterf, targetUsername, targetUri + "/" + _f.getName(), callback);
1037                                     }
1038                                 });
1039                                         }
1040
1041                                         @Override
1042                                         public void onError(Throwable t) {
1043                                 GWT.log("", t);
1044                                                 setError(t);
1045                                 if (t instanceof RestException) {
1046                                     displayError("Unable to get folder: " + ((RestException) t).getHttpStatusText());
1047                                 }
1048                                 else
1049                                     displayError("System error getting folder: " + t.getMessage());
1050                                         }
1051
1052                                         @Override
1053                                         protected void onUnauthorized(Response response) {
1054                                                 sessionExpired();
1055                                         }
1056                                 };
1057                                 getFolder.setHeader("X-Auth-Token", getToken());
1058                                 Scheduler.get().scheduleDeferred(getFolder);
1059             }
1060
1061             @Override
1062             public void onError(Throwable t) {
1063                 GWT.log("", t);
1064                                 setError(t);
1065                if (t instanceof RestException) {
1066                     displayError("Unable to create folder: " + ((RestException) t).getHttpStatusText());
1067                 }
1068                 else
1069                     displayError("System error creating folder: " + t.getMessage());
1070             }
1071
1072                         @Override
1073                         protected void onUnauthorized(Response response) {
1074                                 sessionExpired();
1075                         }
1076         };
1077         createFolder.setHeader("X-Auth-Token", getToken());
1078         createFolder.setHeader("Accept", "*/*");
1079         createFolder.setHeader("Content-Length", "0");
1080         createFolder.setHeader("Content-Type", "application/folder");
1081         Scheduler.get().scheduleDeferred(createFolder);
1082     }
1083
1084     public void addSelectionModel(@SuppressWarnings("rawtypes") SingleSelectionModel model) {
1085         selectionModels.add(model);
1086     }
1087
1088         public OtherSharedTreeView getOtherSharedTreeView() {
1089                 return otherSharedTreeView;
1090         }
1091
1092         public void updateTrash(boolean showFiles, Command callback) {
1093                 updateFolder(trash, showFiles, callback);
1094         }
1095
1096         public void updateGroupsNode() {
1097                 groupTreeView.updateGroupNode(null);
1098         }
1099
1100         public void addGroup(String groupname) {
1101                 Group newGroup = new Group(groupname);
1102                 account.addGroup(newGroup);
1103                 groupTreeView.updateGroupNode(null);
1104         }
1105
1106         public void removeGroup(Group group) {
1107                 account.removeGroup(group);
1108                 updateGroupsNode();
1109         }
1110
1111         public TreeView getSelectedTree() {
1112                 return selectedTree;
1113         }
1114
1115         public Folder getSelection() {
1116                 return selectedTree.getSelection();
1117         }
1118
1119         public void showFolderStatistics(int folderFileCount) {
1120                 numOfFiles.setHTML(String.valueOf(folderFileCount));
1121         }
1122
1123         public GroupTreeView getGroupTreeView() {
1124                 return groupTreeView;
1125         }
1126
1127         public void sessionExpired() {
1128                 new SessionExpiredDialog(this).center();
1129         }
1130
1131         public void updateRootFolder(Command callback) {
1132                 updateFolder(account.getPithos(), false, callback);
1133         }
1134
1135         void createMySharedTree() {
1136                 mysharedTreeSelectionModel = new SingleSelectionModel<Folder>();
1137                 mysharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
1138                     @Override
1139                     public void onSelectionChange(SelectionChangeEvent event) {
1140                         if (mysharedTreeSelectionModel.getSelectedObject() != null) {
1141                             deselectOthers(mysharedTreeView, mysharedTreeSelectionModel);
1142                             upload.setEnabled(false);
1143                             updateSharedFolder(mysharedTreeSelectionModel.getSelectedObject(), true);
1144                         }
1145                         showRelevantToolbarButtons();
1146                     }
1147                 });
1148                 selectionModels.add(mysharedTreeSelectionModel);
1149                 mysharedTreeViewModel = new MysharedTreeViewModel(Pithos.this, mysharedTreeSelectionModel);
1150                 mysharedTreeViewModel.initialize(new Command() {
1151
1152                         @Override
1153                         public void execute() {
1154                             mysharedTreeView = new MysharedTreeView(mysharedTreeViewModel);
1155                                 trees.insert(mysharedTreeView, 2);
1156                                 treeViews.add(mysharedTreeView);
1157                                 createOtherSharedTree();
1158                         }
1159                 });
1160         }
1161
1162         void createOtherSharedTree() {
1163                 otherSharedTreeSelectionModel = new SingleSelectionModel<Folder>();
1164                 otherSharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
1165                     @Override
1166                     public void onSelectionChange(SelectionChangeEvent event) {
1167                         if (otherSharedTreeSelectionModel.getSelectedObject() != null) {
1168                             deselectOthers(otherSharedTreeView, otherSharedTreeSelectionModel);
1169                             otherSharedTreeView.addStyleName("cellTreeWidget-selectedTree");
1170                             applyPermissions(otherSharedTreeSelectionModel.getSelectedObject());
1171                             updateOtherSharedFolder(otherSharedTreeSelectionModel.getSelectedObject(), true);
1172                         }
1173                         showRelevantToolbarButtons();
1174                     }
1175                 });
1176                 selectionModels.add(otherSharedTreeSelectionModel);
1177                 otherSharedTreeViewModel = new OtherSharedTreeViewModel(Pithos.this, otherSharedTreeSelectionModel);
1178                 otherSharedTreeViewModel.initialize(new Command() {
1179
1180                         @Override
1181                         public void execute() {
1182                             otherSharedTreeView = new OtherSharedTreeView(otherSharedTreeViewModel);
1183                                 trees.insert(otherSharedTreeView, 3);
1184                                 treeViews.add(otherSharedTreeView);
1185                         }
1186                 });
1187         }
1188
1189         public void logoff() {
1190                 Cookies.removeCookie(config.authCookie(), "/");
1191                 Cookies.removeCookie(config.authTokenCookie(), "/");
1192                 for (String s: Cookies.getCookieNames())
1193                         if (s.startsWith(config.shibSessionCookiePrefix()))
1194                                 Cookies.removeCookie(s, "/");
1195                 Window.Location.assign(config.logoutUrl());
1196         }
1197
1198         public String getErrorData() {
1199                 if (error != null)
1200                         return error.toString();
1201                 return "";
1202         }
1203
1204         public void setError(Throwable t) {
1205                 error = t;
1206         }
1207
1208         public void showRelevantToolbarButtons() {
1209                 toolbar.showRelevantButtons();
1210         }
1211 }