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

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