code.grnet.gr Git - pithos/blob - web_client/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 import gr.grnet.pithos.web.client.tagtree.TagTreeView;
  58 import gr.grnet.pithos.web.client.tagtree.TagTreeViewModel;
  59
  60 import java.util.ArrayList;
  61 import java.util.HashMap;
  62 import java.util.Iterator;
  63 import java.util.List;
  64 import java.util.Set;
  65
  66 import com.google.gwt.core.client.EntryPoint;
  67 import com.google.gwt.core.client.GWT;
  68 import com.google.gwt.core.client.Scheduler;
  69 import com.google.gwt.core.client.Scheduler.ScheduledCommand;
  70 import com.google.gwt.event.dom.client.ClickEvent;
  71 import com.google.gwt.event.dom.client.ClickHandler;
  72 import com.google.gwt.event.logical.shared.ResizeEvent;
  73 import com.google.gwt.event.logical.shared.ResizeHandler;
  74 import com.google.gwt.http.client.Request;
  75 import com.google.gwt.http.client.RequestBuilder;
  76 import com.google.gwt.http.client.RequestCallback;
  77 import com.google.gwt.http.client.RequestException;
  78 import com.google.gwt.http.client.Response;
  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.user.client.Command;
  86 import com.google.gwt.user.client.Cookies;
  87 import com.google.gwt.user.client.Event;
  88 import com.google.gwt.user.client.History;
  89 import com.google.gwt.user.client.Window;
  90 import com.google.gwt.user.client.ui.AbstractImagePrototype;
  91 import com.google.gwt.user.client.ui.Button;
  92 import com.google.gwt.user.client.ui.HTML;
  93 import com.google.gwt.user.client.ui.HasHorizontalAlignment;
  94 import com.google.gwt.user.client.ui.HasVerticalAlignment;
  95 import com.google.gwt.user.client.ui.HorizontalPanel;
  96 import com.google.gwt.user.client.ui.HorizontalSplitPanel;
  97 import com.google.gwt.user.client.ui.RootPanel;
  98 import com.google.gwt.user.client.ui.VerticalPanel;
  99 import com.google.gwt.view.client.SelectionChangeEvent;
 100 import com.google.gwt.view.client.SelectionChangeEvent.Handler;
 101 import com.google.gwt.view.client.SingleSelectionModel;
 102
 103 /**
 104  * Entry point classes define <code>onModuleLoad()</code>.
 105  */
 106 public class Pithos implements EntryPoint, ResizeHandler {
 107
 108         public static final String HOME_CONTAINER = "pithos";
 109
 110         public static final String TRASH_CONTAINER = "trash";
 111
 112         /**
 113          * Instantiate an application-level image bundle. This object will provide
 114          * programmatic access to all the images needed by widgets.
 115          */
 116         private static Images images = (Images) GWT.create(Images.class);
 117
 118     public String getUsername() {
 119         return username;
 120     }
 121
 122     public void setAccount(AccountResource acct) {
 123         account = acct;
 124     }
 125
 126     public AccountResource getAccount() {
 127         return account;
 128     }
 129
 130     public void updateFolder(Folder f, boolean showfiles, Command callback) {
 131         folderTreeView.updateFolder(f, showfiles, callback);
 132     }
 133
 134     public void updateGroupNode(Group group) {
 135         groupTreeView.updateGroupNode(group);
 136     }
 137
 138     public void updateSharedFolder(Folder f, boolean showfiles) {
 139         mysharedTreeView.updateFolder(f, showfiles);
 140     }
 141
 142     public void updateOtherSharedFolder(Folder f, boolean showfiles) {
 143         otherSharedTreeView.updateFolder(f, showfiles);
 144     }
 145
 146     public void updateTag(Tag t) {
 147         tagTreeView.updateTag(t);
 148     }
 149
 150     public void updateTags() {
 151         tagTreeViewModel.initialize(getAllTags());
 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 {
 173
 174                 @Source("gr/grnet/pithos/resources/document.png")
 175                 ImageResource folders();
 176
 177                 @Source("gr/grnet/pithos/resources/edit_group_22.png")
 178                 ImageResource groups();
 179
 180                 @Source("gr/grnet/pithos/resources/search.png")
 181                 ImageResource search();
 182         }
 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(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
 227         /**
 228          * The WebDAV password of the current user
 229          */
 230         private String webDAVPassword;
 231
 232         public HashMap<String, String> userFullNameMap = new HashMap<String, String>();
 233
 234     private String username = null;
 235
 236     /**
 237      * The authentication token of the current user.
 238      */
 239     private String token;
 240
 241     SingleSelectionModel<Folder> folderTreeSelectionModel;
 242     FolderTreeViewModel folderTreeViewModel;
 243     FolderTreeView folderTreeView;
 244
 245     SingleSelectionModel<Folder> mysharedTreeSelectionModel;
 246     private MysharedTreeViewModel mysharedTreeViewModel;
 247     MysharedTreeView mysharedTreeView;
 248
 249     protected SingleSelectionModel<Folder> otherSharedTreeSelectionModel;
 250     private OtherSharedTreeViewModel otherSharedTreeViewModel;
 251     OtherSharedTreeView otherSharedTreeView;
 252
 253     protected SingleSelectionModel<Tag> tagTreeSelectionModel;
 254     private TagTreeViewModel tagTreeViewModel;
 255     private TagTreeView tagTreeView;
 256
 257     GroupTreeViewModel groupTreeViewModel;
 258     private GroupTreeView groupTreeView;
 259
 260     private TreeView selectedTree;
 261     protected AccountResource account;
 262
 263     Folder trash;
 264
 265     @SuppressWarnings("rawtypes")
 266         private List<SingleSelectionModel> selectionModels = new ArrayList<SingleSelectionModel>();
 267
 268     Button upload;
 269
 270     private HTML totalFiles;
 271
 272     private HTML usedBytes;
 273
 274     private HTML totalBytes;
 275
 276     private HTML usedPercent;
 277
 278     private HTML numOfFiles;
 279
 280         @Override
 281         public void onModuleLoad() {
 282                 if (parseUserCredentials())
 283             initialize();
 284         }
 285
 286     private void initialize() {
 287         VerticalPanel outer = new VerticalPanel();
 288         outer.setWidth("100%");
 289
 290         topPanel = new TopPanel(this, Pithos.images);
 291         topPanel.setWidth("100%");
 292         outer.add(topPanel);
 293
 294         messagePanel.setWidth("100%");
 295         messagePanel.setVisible(false);
 296         outer.add(messagePanel);
 297         outer.setCellHorizontalAlignment(messagePanel, HasHorizontalAlignment.ALIGN_CENTER);
 298
 299
 300         // Inner contains the various lists.
 301         inner.sinkEvents(Event.ONCONTEXTMENU);
 302         inner.setWidth("100%");
 303
 304         HorizontalPanel rightside = new HorizontalPanel();
 305         rightside.addStyleName("pithos-rightSide");
 306         rightside.setSpacing(5);
 307
 308         HorizontalPanel folderStatistics = new HorizontalPanel();
 309         folderStatistics.addStyleName("pithos-folderStatistics");
 310         numOfFiles = new HTML();
 311         folderStatistics.add(numOfFiles);
 312         HTML numOfFilesLabel = new HTML("&nbsp;Files");
 313         folderStatistics.add(numOfFilesLabel);
 314         rightside.add(folderStatistics);
 315         inner.add(rightside);
 316         inner.setCellHorizontalAlignment(rightside, HasHorizontalAlignment.ALIGN_RIGHT);
 317         inner.setCellVerticalAlignment(rightside, HasVerticalAlignment.ALIGN_MIDDLE);
 318         inner.setCellHeight(rightside, "60px");
 319
 320         folderTreeSelectionModel = new SingleSelectionModel<Folder>();
 321         folderTreeSelectionModel.addSelectionChangeHandler(new SelectionChangeEvent.Handler() {
 322             @Override
 323             public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
 324                 if (folderTreeSelectionModel.getSelectedObject() != null) {
 325                     deselectOthers(folderTreeView, folderTreeSelectionModel);
 326                     applyPermissions(folderTreeSelectionModel.getSelectedObject());
 327                     Folder f = folderTreeSelectionModel.getSelectedObject();
 328                     updateFolder(f, true, null);
 329                 }
 330             }
 331         });
 332         selectionModels.add(folderTreeSelectionModel);
 333
 334         folderTreeViewModel = new FolderTreeViewModel(this, folderTreeSelectionModel);
 335         folderTreeView = new FolderTreeView(folderTreeViewModel);
 336
 337         fileList = new FileList(this, images, folderTreeView);
 338         inner.add(fileList);
 339
 340         mysharedTreeSelectionModel = new SingleSelectionModel<Folder>();
 341         mysharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
 342             @Override
 343             public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
 344                 if (mysharedTreeSelectionModel.getSelectedObject() != null) {
 345                     deselectOthers(mysharedTreeView, mysharedTreeSelectionModel);
 346                     upload.setEnabled(false);
 347                     updateSharedFolder(mysharedTreeSelectionModel.getSelectedObject(), true);
 348                 }
 349             }
 350         });
 351         selectionModels.add(mysharedTreeSelectionModel);
 352         mysharedTreeViewModel = new MysharedTreeViewModel(this, mysharedTreeSelectionModel);
 353         mysharedTreeView = new MysharedTreeView(mysharedTreeViewModel);
 354
 355         otherSharedTreeSelectionModel = new SingleSelectionModel<Folder>();
 356         otherSharedTreeSelectionModel.addSelectionChangeHandler(new Handler() {
 357             @Override
 358             public void onSelectionChange(@SuppressWarnings("unused") SelectionChangeEvent event) {
 359                 if (otherSharedTreeSelectionModel.getSelectedObject() != null) {
 360                     deselectOthers(otherSharedTreeView, otherSharedTreeSelectionModel);
 361                     applyPermissions(otherSharedTreeSelectionModel.getSelectedObject());
 362                     updateOtherSharedFolder(otherSharedTreeSelectionModel.getSelectedObject(), true);
 363                 }
 364             }
 365         });
 366         selectionModels.add(otherSharedTreeSelectionModel);
 367         otherSharedTreeViewModel = new OtherSharedTreeViewModel(this, otherSharedTreeSelectionModel);
 368         otherSharedTreeView = new OtherSharedTreeView(otherSharedTreeViewModel);
 369
 370         groupTreeViewModel = new GroupTreeViewModel(this);
 371         groupTreeView = new GroupTreeView(groupTreeViewModel);
 372
 373         VerticalPanel trees = new VerticalPanel();
 374
 375         upload = new Button("Upload File", new ClickHandler() {
 376             @Override
 377             public void onClick(@SuppressWarnings("unused") ClickEvent event) {
 378                 new UploadFileCommand(Pithos.this, null, getSelection()).execute();
 379             }
 380         });
 381         upload.addStyleName("pithos-uploadButton");
 382         trees.add(upload);
 383
 384         HorizontalPanel treeHeader = new HorizontalPanel();
 385         treeHeader.addStyleName("pithos-treeHeader");
 386         HorizontalPanel statistics = new HorizontalPanel();
 387         statistics.add(new HTML("Total Objects:&nbsp;"));
 388         totalFiles = new HTML();
 389         statistics.add(totalFiles);
 390         statistics.add(new HTML("&nbsp;|&nbsp;Used:&nbsp;"));
 391         usedBytes = new HTML();
 392         statistics.add(usedBytes);
 393         statistics.add(new HTML("&nbsp;of&nbsp;"));
 394         totalBytes = new HTML();
 395         statistics.add(totalBytes);
 396         statistics.add(new HTML("&nbsp;("));
 397         usedPercent = new HTML();
 398         statistics.add(usedPercent);
 399         statistics.add(new HTML("%)"));
 400         treeHeader.add(statistics);
 401         trees.add(treeHeader);
 402
 403         trees.add(folderTreeView);
 404         trees.add(mysharedTreeView);
 405         trees.add(otherSharedTreeView);
 406 //        trees.add(tagTreeView);
 407         trees.add(groupTreeView);
 408         // Add the left and right panels to the split panel.
 409         splitPanel.setLeftWidget(trees);
 410         splitPanel.setRightWidget(inner);
 411         splitPanel.setSplitPosition("25%");
 412         splitPanel.setSize("100%", "100%");
 413         splitPanel.addStyleName("pithos-splitPanel");
 414         outer.add(splitPanel);
 415
 416         statusPanel = new StatusPanel();
 417         outer.add(statusPanel);
 418
 419
 420         // Hook the window resize event, so that we can adjust the UI.
 421         Window.addResizeHandler(this);
 422         // Clear out the window's built-in margin, because we want to take
 423         // advantage of the entire client area.
 424         Window.setMargin("0px");
 425         // Finally, add the outer panel to the RootPanel, so that it will be
 426         // displayed.
 427         RootPanel.get().add(outer);
 428         // Call the window resized handler to get the initial sizes setup. Doing
 429         // this in a deferred command causes it to occur after all widgets'
 430         // sizes have been computed by the browser.
 431         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 432
 433             @Override
 434             public void execute() {
 435                 onWindowResized(Window.getClientHeight());
 436             }
 437         });
 438
 439         Scheduler.get().scheduleDeferred(new ScheduledCommand() {
 440             @Override
 441             public void execute() {
 442                 fetchAccount(new Command() {
 443
 444                                         @Override
 445                                         public void execute() {
 446                                 if (!account.hasHomeContainer())
 447                                     createHomeContainer(account, this);
 448                                 else if (!account.hasTrashContainer())
 449                                         createTrashContainer(this);
 450                                 else {
 451                                         for (Folder f : account.getContainers())
 452                                                 if (f.getName().equals(Pithos.TRASH_CONTAINER)) {
 453                                                         trash = f;
 454                                                         break;
 455                                                 }
 456                                     folderTreeViewModel.initialize(account);
 457                                     groupTreeViewModel.initialize();
 458                                     showStatistics();
 459                                 }
 460                                         }
 461                                 });
 462             }
 463         });
 464     }
 465
 466     public void applyPermissions(Folder f) {
 467         if (f != null) {
 468                 if (f.isInTrash())
 469                         upload.setEnabled(false);
 470                 else {
 471                         Boolean[] perms = f.getPermissions().get(username);
 472                         if (f.getOwner().equals(username) || (perms != null && perms[1] != null && perms[1])) {
 473                                 upload.setEnabled(true);
 474                         }
 475                         else
 476                                 upload.setEnabled(false);
 477                 }
 478         }
 479         else
 480                 upload.setEnabled(false);
 481         }
 482
 483         @SuppressWarnings({ "rawtypes", "unchecked" })
 484         public void deselectOthers(TreeView _selectedTree, SingleSelectionModel model) {
 485         selectedTree = _selectedTree;
 486         for (SingleSelectionModel s : selectionModels)
 487             if (!s.equals(model))
 488                 s.setSelected(s.getSelectedObject(), false);
 489     }
 490
 491     public void showFiles(Folder f) {
 492         Set<File> files = f.getFiles();
 493         showFiles(files);
 494     }
 495
 496     public void showFiles(Set<File> files) {
 497         //Iterator<File> iter = files.iterator();
 498         //fetchFile(iter, files);
 499         fileList.setFiles(new ArrayList<File>(files));
 500     }
 501
 502     protected void fetchFile(final Iterator<File> iter, final Set<File> files) {
 503         if (iter.hasNext()) {
 504             File file = iter.next();
 505             String path = file.getUri() + "?format=json";
 506             GetRequest<File> getFile = new GetRequest<File>(File.class, getApiPath(), username, path, file) {
 507                 @Override
 508                 public void onSuccess(@SuppressWarnings("unused") File _result) {
 509                     fetchFile(iter, files);
 510                 }
 511
 512                 @Override
 513                 public void onError(Throwable t) {
 514                     GWT.log("Error getting file", t);
 515                     if (t instanceof RestException)
 516                         displayError("Error getting file: " + ((RestException) t).getHttpStatusText());
 517                     else
 518                         displayError("System error fetching file: " + t.getMessage());
 519                 }
 520             };
 521             getFile.setHeader("X-Auth-Token", "0000");
 522             Scheduler.get().scheduleDeferred(getFile);
 523         }
 524         else
 525             fileList.setFiles(new ArrayList<File>(files));
 526     }
 527
 528     /**
 529          * Parse and store the user credentials to the appropriate fields.
 530          */
 531         private boolean parseUserCredentials() {
 532         username = Window.Location.getParameter("user");
 533         token = Window.Location.getParameter("token");
 534         Configuration conf = (Configuration) GWT.create(Configuration.class);
 535         if (username == null || username.length() == 0 || token == null || token.length() == 0) {
 536             String cookie = conf.authCookie();
 537             String auth = Cookies.getCookie(cookie);
 538             if (auth == null) {
 539                 authenticateUser();
 540                 return false;
 541             }
 542                         String[] authSplit = auth.split("\\" + conf.cookieSeparator(), 2);
 543                         if (authSplit.length != 2) {
 544                             authenticateUser();
 545                             return false;
 546                         }
 547                         username = authSplit[0];
 548                         token = authSplit[1];
 549                         return true;
 550         }
 551                 Cookies.setCookie(conf.authCookie(), username + conf.cookieSeparator() + token);
 552                 return true;
 553     }
 554
 555     /**
 556          * Redirect the user to the login page for authentication.
 557          */
 558         protected void authenticateUser() {
 559                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 560         Window.Location.assign(conf.loginUrl() + "?next=" + Window.Location.getHref());
 561         }
 562
 563         protected void fetchAccount(final Command callback) {
 564         String path = "?format=json";
 565
 566         GetRequest<AccountResource> getAccount = new GetRequest<AccountResource>(AccountResource.class, getApiPath(), username, path) {
 567             @Override
 568             public void onSuccess(AccountResource _result) {
 569                 account = _result;
 570                 if (callback != null)
 571                         callback.execute();
 572             }
 573
 574             @Override
 575             public void onError(Throwable t) {
 576                 GWT.log("Error getting account", t);
 577                 if (t instanceof RestException)
 578                     displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 579                 else
 580                     displayError("System error fetching user data: " + t.getMessage());
 581             }
 582         };
 583         getAccount.setHeader("X-Auth-Token", token);
 584         Scheduler.get().scheduleDeferred(getAccount);
 585     }
 586
 587     public void updateStatistics() {
 588         HeadRequest<AccountResource> headAccount = new HeadRequest<AccountResource>(AccountResource.class, getApiPath(), username, "", account) {
 589
 590                         @Override
 591                         public void onSuccess(@SuppressWarnings("unused") AccountResource _result) {
 592                                 showStatistics();
 593                         }
 594
 595                         @Override
 596                         public void onError(Throwable t) {
 597                 GWT.log("Error getting account", t);
 598                 if (t instanceof RestException)
 599                     displayError("Error getting account: " + ((RestException) t).getHttpStatusText());
 600                 else
 601                     displayError("System error fetching user data: " + t.getMessage());
 602                         }
 603                 };
 604                 headAccount.setHeader("X-Auth-Token", token);
 605                 Scheduler.get().scheduleDeferred(headAccount);
 606         }
 607
 608         protected void showStatistics() {
 609         totalFiles.setHTML(String.valueOf(account.getNumberOfObjects()));
 610         usedBytes.setHTML(String.valueOf(account.getFileSizeAsString()));
 611         totalBytes.setHTML(String.valueOf(account.getQuotaAsString()));
 612         usedPercent.setHTML(String.valueOf(account.getUsedPercentage()));
 613         }
 614
 615         protected void createHomeContainer(final AccountResource _account, final Command callback) {
 616         String path = "/" + Pithos.HOME_CONTAINER;
 617         PutRequest createPithos = new PutRequest(getApiPath(), getUsername(), path) {
 618             @Override
 619             public void onSuccess(@SuppressWarnings("unused") Resource result) {
 620                 if (!_account.hasTrashContainer())
 621                         createTrashContainer(callback);
 622                 else
 623                         fetchAccount(callback);
 624             }
 625
 626             @Override
 627             public void onError(Throwable t) {
 628                 GWT.log("Error creating pithos", t);
 629                 if (t instanceof RestException)
 630                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 631                 else
 632                     displayError("System error Error creating pithos: " + t.getMessage());
 633             }
 634         };
 635         createPithos.setHeader("X-Auth-Token", getToken());
 636         Scheduler.get().scheduleDeferred(createPithos);
 637     }
 638
 639     protected void createTrashContainer(final Command callback) {
 640         String path = "/" + Pithos.TRASH_CONTAINER;
 641         PutRequest createPithos = new PutRequest(getApiPath(), getUsername(), path) {
 642             @Override
 643             public void onSuccess(@SuppressWarnings("unused") Resource result) {
 644                         fetchAccount(callback);
 645             }
 646
 647             @Override
 648             public void onError(Throwable t) {
 649                 GWT.log("Error creating pithos", t);
 650                 if (t instanceof RestException)
 651                     displayError("Error creating pithos: " + ((RestException) t).getHttpStatusText());
 652                 else
 653                     displayError("System error Error creating pithos: " + t.getMessage());
 654             }
 655         };
 656         createPithos.setHeader("X-Auth-Token", getToken());
 657         Scheduler.get().scheduleDeferred(createPithos);
 658     }
 659
 660     /**
 661          * Creates an HTML fragment that places an image & caption together, for use
 662          * in a group header.
 663          *
 664          * @param imageProto an image prototype for an image
 665          * @param caption the group caption
 666          * @return the header HTML fragment
 667          */
 668         private String createHeaderHTML(AbstractImagePrototype imageProto, String caption) {
 669                 String captionHTML = "<table class='caption' cellpadding='0' "
 670                 + "cellspacing='0'>" + "<tr><td class='lcaption'>" + imageProto.getHTML()
 671                 + "</td><td id =" + caption +" class='rcaption'><b style='white-space:nowrap'>&nbsp;"
 672                 + caption + "</b></td></tr></table>";
 673                 return captionHTML;
 674         }
 675
 676         protected void onWindowResized(int height) {
 677                 // Adjust the split panel to take up the available room in the window.
 678                 int newHeight = height - splitPanel.getAbsoluteTop() - 60;
 679                 if (newHeight < 1)
 680                         newHeight = 1;
 681                 splitPanel.setHeight("" + newHeight);
 682                 inner.setHeight("" + newHeight);
 683         }
 684
 685         @Override
 686         public void onResize(ResizeEvent event) {
 687                 int height = event.getHeight();
 688                 onWindowResized(height);
 689         }
 690
 691         /**
 692          * Display an error message.
 693          *
 694          * @param msg the message to display
 695          */
 696         public void displayError(String msg) {
 697                 messagePanel.displayError(msg);
 698         }
 699
 700         /**
 701          * Display a warning message.
 702          *
 703          * @param msg the message to display
 704          */
 705         public void displayWarning(String msg) {
 706                 messagePanel.displayWarning(msg);
 707         }
 708
 709         /**
 710          * Display an informational message.
 711          *
 712          * @param msg the message to display
 713          */
 714         public void displayInformation(String msg) {
 715                 messagePanel.displayInformation(msg);
 716         }
 717
 718         /**
 719          * Retrieve the fileList.
 720          *
 721          * @return the fileList
 722          */
 723         public FileList getFileList() {
 724                 return fileList;
 725         }
 726
 727         /**
 728          * Retrieve the topPanel.
 729          *
 730          * @return the topPanel
 731          */
 732         TopPanel getTopPanel() {
 733                 return topPanel;
 734         }
 735
 736         /**
 737          * Retrieve the clipboard.
 738          *
 739          * @return the clipboard
 740          */
 741         public Clipboard getClipboard() {
 742                 return clipboard;
 743         }
 744
 745         public StatusPanel getStatusPanel() {
 746                 return statusPanel;
 747         }
 748
 749         public String getToken() {
 750                 return token;
 751         }
 752
 753         public String getWebDAVPassword() {
 754                 return webDAVPassword;
 755         }
 756
 757         public static native void preventIESelection() /*-{
 758                 $doc.body.onselectstart = function () { return false; };
 759         }-*/;
 760
 761         public static native void enableIESelection() /*-{
 762                 if ($doc.body.onselectstart != null)
 763                 $doc.body.onselectstart = null;
 764         }-*/;
 765
 766         /**
 767          * @return the absolute path of the API root URL
 768          */
 769         public String getApiPath() {
 770                 Configuration conf = (Configuration) GWT.create(Configuration.class);
 771                 return conf.apiPath();
 772         }
 773
 774         /**
 775          * History support for folder navigation
 776          * adds a new browser history entry
 777          *
 778          * @param key
 779          */
 780         public void updateHistory(String key){
 781 //              Replace any whitespace of the initial string to "+"
 782 //              String result = key.replaceAll("\\s","+");
 783 //              Add a new browser history entry.
 784 //              History.newItem(result);
 785                 History.newItem(key);
 786         }
 787
 788     public void deleteFolder(final Folder folder) {
 789         String path = getApiPath() + folder.getOwner() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + folder.getPrefix();
 790         RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);
 791         builder.setHeader("If-Modified-Since", "0");
 792         builder.setHeader("X-Auth-Token", getToken());
 793         try {
 794             builder.sendRequest("", new RequestCallback() {
 795                 @Override
 796                 public void onResponseReceived(@SuppressWarnings("unused") Request request, Response response) {
 797                     if (response.getStatusCode() == Response.SC_OK) {
 798                         JSONValue json = JSONParser.parseStrict(response.getText());
 799                         JSONArray array = json.isArray();
 800                         int i = 0;
 801                         if (array != null) {
 802                             deleteObject(folder, i, array);
 803                         }
 804                     }
 805                 }
 806
 807                 @Override
 808                 public void onError(@SuppressWarnings("unused") Request request, Throwable exception) {
 809                     displayError("System error unable to delete folder: " + exception.getMessage());
 810                 }
 811             });
 812         }
 813         catch (RequestException e) {
 814         }
 815     }
 816
 817     void deleteObject(final Folder folder, final int i, final JSONArray array) {
 818         if (i < array.size()) {
 819             JSONObject o = array.get(i).isObject();
 820             if (o != null && !o.containsKey("subdir")) {
 821                 JSONString name = o.get("name").isString();
 822                 String path = "/" + folder.getContainer() + "/" + name.stringValue();
 823                 DeleteRequest delete = new DeleteRequest(getApiPath(), folder.getOwner(), path) {
 824                     @Override
 825                     public void onSuccess(@SuppressWarnings("unused") Resource result) {
 826                         deleteObject(folder, i + 1, array);
 827                     }
 828
 829                     @Override
 830                     public void onError(Throwable t) {
 831                         GWT.log("", t);
 832                         displayError("System error unable to delete folder: " + t.getMessage());
 833                     }
 834                 };
 835                 delete.setHeader("X-Auth-Token", getToken());
 836                 Scheduler.get().scheduleDeferred(delete);
 837             }
 838             else if (o != null) {
 839                 String subdir = o.get("subdir").isString().stringValue();
 840                 subdir = subdir.substring(0, subdir.length() - 1);
 841                 String path = getApiPath() + getUsername() + "/" + folder.getContainer() + "?format=json&delimiter=/&prefix=" + subdir;
 842                 RequestBuilder builder = new RequestBuilder(RequestBuilder.GET, path);
 843                 builder.setHeader("If-Modified-Since", "0");
 844                 builder.setHeader("X-Auth-Token", getToken());
 845                 try {
 846                     builder.sendRequest("", new RequestCallback() {
 847                         @Override
 848                         public void onResponseReceived(@SuppressWarnings("unused") Request request, Response response) {
 849                             if (response.getStatusCode() == Response.SC_OK) {
 850                                 JSONValue json = JSONParser.parseStrict(response.getText());
 851                                 JSONArray array2 = json.isArray();
 852                                 if (array2 != null) {
 853                                     int l = array.size();
 854                                     for (int j=0; j<array2.size(); j++) {
 855                                         array.set(l++, array2.get(j));
 856                                     }
 857                                 }
 858                                 deleteObject(folder, i + 1, array);
 859                             }
 860                         }
 861
 862                         @Override
 863                         public void onError(@SuppressWarnings("unused") Request request, Throwable exception) {
 864                             displayError("System error unable to delete folder: " + exception.getMessage());
 865                         }
 866                     });
 867                 }
 868                 catch (RequestException e) {
 869                 }
 870             }
 871         }
 872         else {
 873             String path = folder.getUri();
 874             DeleteRequest deleteFolder = new DeleteRequest(getApiPath(), getUsername(), path) {
 875                 @Override
 876                 public void onSuccess(@SuppressWarnings("unused") Resource result) {
 877                     updateFolder(folder.getParent(), true, new Command() {
 878
 879                                                 @Override
 880                                                 public void execute() {
 881                                                         updateStatistics();
 882                                                 }
 883                                         });
 884                 }
 885
 886                 @Override
 887                 public void onError(Throwable t) {
 888                     GWT.log("", t);
 889                     if (t instanceof RestException) {
 890                         if (((RestException) t).getHttpStatusCode() != Response.SC_NOT_FOUND)
 891                                 displayError("Unable to delete folder: "+((RestException) t).getHttpStatusText());
 892                         else
 893                                 onSuccess(null);
 894                     }
 895                     else
 896                         displayError("System error unable to delete folder: " + t.getMessage());
 897                 }
 898             };
 899             deleteFolder.setHeader("X-Auth-Token", getToken());
 900             Scheduler.get().scheduleDeferred(deleteFolder);
 901         }
 902     }
 903
 904     public FolderTreeView getFolderTreeView() {
 905         return folderTreeView;
 906     }
 907
 908     public void copyFiles(final Iterator<File> iter, final String targetUsername, final String targetUri, final Command callback) {
 909         if (iter.hasNext()) {
 910             File file = iter.next();
 911             String path = targetUri + "/" + file.getName();
 912             PutRequest copyFile = new PutRequest(getApiPath(), targetUsername, path) {
 913                 @Override
 914                 public void onSuccess(@SuppressWarnings("unused") Resource result) {
 915                     copyFiles(iter, targetUsername, targetUri, callback);
 916                 }
 917
 918                 @Override
 919                 public void onError(Throwable t) {
 920                     GWT.log("", t);
 921                     if (t instanceof RestException) {
 922                         displayError("Unable to copy file: " + ((RestException) t).getHttpStatusText());
 923                     }
 924                     else
 925                         displayError("System error unable to copy file: "+t.getMessage());
 926                 }
 927             };
 928             copyFile.setHeader("X-Auth-Token", getToken());
 929             copyFile.setHeader("X-Copy-From", file.getUri());
 930             Scheduler.get().scheduleDeferred(copyFile);
 931         }
 932         else  if (callback != null) {
 933             callback.execute();
 934         }
 935     }
 936
 937     public void copySubfolders(final Iterator<Folder> iter, final String targetUsername, final String targetUri, final Command callback) {
 938         if (iter.hasNext()) {
 939             final Folder f = iter.next();
 940             copyFolder(f, targetUsername, targetUri, new Command() {
 941
 942                                 @Override
 943                                 public void execute() {
 944                                         copySubfolders(iter, targetUsername, targetUri, callback);
 945                                 }
 946                         });
 947         }
 948         else  if (callback != null) {
 949             callback.execute();
 950         }
 951     }
 952
 953     public void copyFolder(final Folder f, final String targetUsername, final String targetUri, final Command callback) {
 954         String path = targetUri + "/" + f.getName();
 955         PutRequest createFolder = new PutRequest(getApiPath(), targetUsername, path) {
 956             @Override
 957             public void onSuccess(@SuppressWarnings("unused") Resource result) {
 958                 GetRequest<Folder> getFolder = new GetRequest<Folder>(Folder.class, getApiPath(), f.getOwner(), "/" + f.getContainer() + "?format=json&delimiter=/&prefix=" + f.getPrefix(), f) {
 959
 960                                         @Override
 961                                         public void onSuccess(final Folder _f) {
 962                                 Iterator<File> iter = _f.getFiles().iterator();
 963                                 copyFiles(iter, targetUsername, targetUri + "/" + _f.getName(), new Command() {
 964                                     @Override
 965                                     public void execute() {
 966                                         Iterator<Folder> iterf = _f.getSubfolders().iterator();
 967                                         copySubfolders(iterf, targetUsername, targetUri + "/" + _f.getName(), callback);
 968                                     }
 969                                 });
 970                                         }
 971
 972                                         @Override
 973                                         public void onError(Throwable t) {
 974                                 GWT.log("", t);
 975                                 if (t instanceof RestException) {
 976                                     displayError("Unable to get folder: " + ((RestException) t).getHttpStatusText());
 977                                 }
 978                                 else
 979                                     displayError("System error getting folder: " + t.getMessage());
 980                                         }
 981                                 };
 982                                 getFolder.setHeader("X-Auth-Token", getToken());
 983                                 Scheduler.get().scheduleDeferred(getFolder);
 984             }
 985
 986             @Override
 987             public void onError(Throwable t) {
 988                 GWT.log("", t);
 989                 if (t instanceof RestException) {
 990                     displayError("Unable to create folder: " + ((RestException) t).getHttpStatusText());
 991                 }
 992                 else
 993                     displayError("System error creating folder: " + t.getMessage());
 994             }
 995         };
 996         createFolder.setHeader("X-Auth-Token", getToken());
 997         createFolder.setHeader("Accept", "*/*");
 998         createFolder.setHeader("Content-Length", "0");
 999         createFolder.setHeader("Content-Type", "application/folder");
1000         Scheduler.get().scheduleDeferred(createFolder);
1001     }
1002
1003     public void addSelectionModel(@SuppressWarnings("rawtypes") SingleSelectionModel model) {
1004         selectionModels.add(model);
1005     }
1006
1007         public OtherSharedTreeView getOtherSharedTreeView() {
1008                 return otherSharedTreeView;
1009         }
1010
1011         public void updateTrash(boolean showFiles, Command callback) {
1012                 updateFolder(trash, showFiles, callback);
1013         }
1014
1015         public void updateGroupsNode() {
1016                 groupTreeView.updateGroupNode(null);
1017         }
1018
1019         public void addGroup(String groupname) {
1020                 Group newGroup = new Group(groupname);
1021                 account.addGroup(newGroup);
1022                 groupTreeView.updateGroupNode(null);
1023         }
1024
1025         public void removeGroup(Group group) {
1026                 account.removeGroup(group);
1027                 updateGroupsNode();
1028         }
1029
1030         public TreeView getSelectedTree() {
1031                 return selectedTree;
1032         }
1033
1034         public Folder getSelection() {
1035                 return selectedTree.getSelection();
1036         }
1037
1038         public void showFolderStatistics(int folderFileCount) {
1039                 numOfFiles.setHTML(String.valueOf(folderFileCount));
1040         }
1041 }