Example #1
0
def fsDoMoveLinkView(quotedLinkPath, quotedDestBox=''):
    """Move-link, view 2/2: dest box is selected, actually move."""
    user = g.user
    db = dbGetDatabase()
    # we retrieve the source file and the destination box
    srcFsPathString = urllib.parse.unquote_plus(quotedLinkPath)
    srcLsPath = splitPathString(srcFsPathString)
    srcBoxPath, linkName = srcLsPath[:-1], srcLsPath[-1]
    srcBox = getBoxFromPath(db, srcBoxPath, user)
    link = getLinkFromParent(db, srcBox, linkName, user)
    dstBoxPathString = urllib.parse.unquote_plus(quotedDestBox)
    dstBoxPath = splitPathString(dstBoxPathString)
    dstBox = getBoxFromPath(db, dstBoxPath, user)
    fileStorageDirectory = g.settings['system']['system_directories'][
        'fs_directory']['value']
    #
    request._onErrorUrl = url_for(
        'lsView',
        lsPathString='/'.join(srcBoxPath[1:]),
    )
    messages = moveLink(
        db,
        link,
        srcBox,
        dstBox,
        user,
        fileStorageDirectory=fileStorageDirectory,
    )
    for msg in messages:
        flashMessage('Info', 'Info', msg)
    return redirect(url_for(
        'lsView',
        lsPathString='/'.join(dstBoxPath[1:]),
    ))
Example #2
0
def fsDeleteLinkView(fsPathString=''):
    """ Delete-link view.
        Permission checks are performed by the deleteLink filesystem call.
    """
    user = g.user
    db = dbGetDatabase()
    fileStorageDirectory = g.settings['system']['system_directories'][
        'fs_directory']['value']
    lsPath = splitPathString(fsPathString)
    boxPath, linkName = lsPath[:-1], lsPath[-1]
    parentBox = getBoxFromPath(db, boxPath, user)
    request._onErrorUrl = url_for(
        'lsView',
        lsPathString='/'.join(boxPath[1:]),
    )
    link = getLinkFromParent(db, parentBox, linkName, user)
    fsDeleteQueue = deleteLink(
        db,
        parentBox,
        link,
        user,
        fileStorageDirectory=fileStorageDirectory,
    )
    flushFsDeleteQueue(fsDeleteQueue)
    return redirect(url_for(
        'lsView',
        lsPathString='/'.join(boxPath[1:]),
    ))
Example #3
0
def linkThumbnailView(dummyId, fsPathString=''):
    """Route for access to thumbnail image files based on link path."""
    user = g.user
    lsPath = splitPathString(fsPathString)
    boxPath, linkName = lsPath[:-1], lsPath[-1]
    db = dbGetDatabase()
    fileStorageDirectory = g.settings['system']['system_directories'][
        'fs_directory']['value']
    parentBox = getBoxFromPath(db, boxPath, user)
    request._onErrorUrl = url_for(
        'lsView',
        lsPathString='/'.join(boxPath[1:]),
    )
    link = getLinkFromParent(db, parentBox, linkName, user)
    if (link is not None and link.icon_file_id is not None
            and link.icon_file_id != ''):
        filePhysicalPath, filePhysicalName = fileIdToSplitPath(
            link.icon_file_id,
            fileStorageDirectory=fileStorageDirectory,
        )
        return send_from_directory(
            filePhysicalPath,
            filePhysicalName,
            mimetype=link.icon_mime_type,
        )
    else:
        return redirect(makeSettingImageUrl(g, 'app_images', 'external_link'))
Example #4
0
def _resolveUponPermissions(db, richObject, user, mode, score):
    """ Verify and validate the input (rich-)box/file
        against permissions, and return either a similar structure
        or a None if permissions turn out to be blocking.

        (
            richObject has keys "path" and "box/file",
            mode = 'file' / 'box'
        )
    """
    pBox = getBoxFromPath(db, richObject['path'][:-1], user)
    if mode == 'box':
        nBox = getBoxFromPath(db, richObject['path'], user)
        if nBox is not None and pBox is not None:
            return {
                'path':
                richObject['path'][1:],
                'box':
                nBox,
                'actions':
                prepareBoxActions(db,
                                  nBox,
                                  richObject['path'][1:],
                                  pBox,
                                  user,
                                  prepareParentButton=True),
                'info':
                prepareBoxInfo(db, nBox),
                'parentInfo':
                'Parent box: "%s"' % (describeBoxTitle(pBox), ),
                'object_type':
                mode,
                'score':
                score,
            }
        else:
            return None
    elif mode == 'file':
        if pBox is not None:
            nFile = getFileFromParent(db, pBox, richObject['path'][-1], user)
            if nFile is not None:
                return {
                    'path':
                    richObject['path'][1:],
                    'file':
                    nFile,
                    'actions':
                    prepareFileActions(db,
                                       nFile,
                                       richObject['path'][1:],
                                       pBox,
                                       user,
                                       prepareParentButton=True),
                    'info':
                    prepareFileInfo(db, nFile),
                    'nice_size':
                    formatBytesSize(nFile.size),
                    'parentInfo':
                    'Container box: "%s"' % (describeBoxTitle(pBox), ),
                    'object_type':
                    mode,
                    'score':
                    score,
                }
            else:
                return None
        else:
            return None
    elif mode == 'link':
        if pBox is not None:
            nLink = getLinkFromParent(db, pBox, richObject['path'][-1], user)
            if nLink is not None:
                return {
                    'path':
                    richObject['path'][1:],
                    'link':
                    nLink,
                    'actions':
                    prepareLinkActions(db,
                                       nLink,
                                       richObject['path'][1:],
                                       pBox,
                                       user,
                                       prepareParentButton=True),
                    'info':
                    prepareLinkInfo(db, nLink),
                    'parentInfo':
                    'Container box: "%s"' % (describeBoxTitle(pBox), ),
                    'object_type':
                    mode,
                    'score':
                    score,
                }
            else:
                return None
        else:
            return None
    else:
        raise NotImplementedError('Unknown _resolveUponPermissions mode "%s"' %
                                  mode)
Example #5
0
def fsMoveLinkView(quotedLinkPath):
    """Move-link, view 1/2: select destination box."""
    user = g.user
    db = dbGetDatabase()
    # first we find the link
    fsPathString = urllib.parse.unquote_plus(quotedLinkPath)
    lsPath = splitPathString(fsPathString)
    boxPath, linkName = lsPath[:-1], lsPath[-1]
    parentBox = getBoxFromPath(db, boxPath, user)
    link = getLinkFromParent(db, parentBox, linkName, user)
    if link is None:
        raise OstracionError('Link not found')
    # next we prepare the selectable destinations
    rootBox = getRootBox(db)

    def rbPredicate(richBox, idToAvoid=parentBox.box_id):
        return all((richBox['box'].box_id != idToAvoid,
                    userHasPermission(db, user, richBox['box'].permissions,
                                      'w')))

    dstBoxTree = collectTreeFromBox(
        db,
        rootBox,
        user,
        admitFiles=False,
        fileOrBoxEnricher=lambda richBox: {
            'obj_path': urllib.parse.quote_plus('/'.join(richBox['path'])),
        },
        predicate=rbPredicate,
    )
    #
    maxDepth = getMaxTreeDepth(dstBoxTree)
    colorShadeMap = prepareColorShadeMap(
        g.settings['color']['navigation_colors']['link']['value'],
        g.settings['color']['tree_shade_colors']['shade_treeview_pickbox']
        ['value'],
        numShades=1 + maxDepth,
    )
    destinationsExist = treeAny(
        dstBoxTree,
        property=lambda node: node['predicate'],
    )
    #
    return render_template(
        'dirtreeview.html',
        tree=dstBoxTree if destinationsExist else None,
        mode='link_move',
        object_quoted_path=quotedLinkPath,
        colorShadeMap=colorShadeMap,
        user=user,
        iconUrl=makeSettingImageUrl(g, 'app_images', 'move'),
        pageTitle='Select link destination',
        pageSubtitle=(('Choose the box to which link "%s" shall '
                       'be moved from "%s"') % (
                           link.title,
                           describeBoxTitle(parentBox),
                       )),
        actions=None,
        backToUrl=None if destinationsExist else url_for(
            'lsView',
            lsPathString='/'.join(boxPath[1:]),
        ),
        breadCrumbs=makeBreadCrumbs(
            boxPath,
            g,
            appendedItems=[{
                'kind': 'external_link',
                'target': link,
            }, {
                'kind': 'link',
                'target': None,
                'name': 'Move link',
            }],
        ),
    )
Example #6
0
def fsLinkMetadataView(fsPathString=''):
    """Edit-link-metadata view, a web-form."""

    user = g.user
    db = dbGetDatabase()
    form = EditLinkForm()
    lsPath = splitPathString(fsPathString)
    boxPath, prevLinkName = lsPath[:-1], lsPath[-1]
    parentBox = getBoxFromPath(db, boxPath, user)
    request._onErrorUrl = url_for(
        'lsView',
        lsPathString='/'.join(boxPath[1:]),
    )
    link = getLinkFromParent(db, parentBox, prevLinkName, user)
    if form.validate_on_submit():
        newLink = Link(**recursivelyMergeDictionaries(
            {
                'name': form.linkname.data,
                'description': form.linkdescription.data,
                'title': form.linktitle.data,
                'target': form.linktarget.data,
                'metadata_username': user.username,
                'metadata_dict': {
                    'open_in_new_window': form.openinnewwindow.data,
                },
            },
            defaultMap={
                k: v
                for k, v in link.asDict().items() if k not in {
                    'metadata', 'dvector_description', 'dvector_name',
                    'dvector_title'
                }
            },
        ))
        updateLink(db, boxPath, prevLinkName, newLink, user)
        return redirect(url_for('lsView', lsPathString='/'.join(boxPath[1:])))
    else:
        form.linkname.data = applyDefault(form.linkname.data, link.name)
        form.linkdescription.data = applyDefault(form.linkdescription.data,
                                                 link.description)
        form.linktitle.data = applyDefault(form.linktitle.data, link.title)
        form.linktarget.data = applyDefault(form.linktarget.data, link.target)
        form.openinnewwindow.data = link.getMetadata(
            'open_in_new_window',
            True,
        )
        #
        pageFeatures = {
            'breadCrumbs':
            makeBreadCrumbs(
                boxPath,
                g,
                appendedItems=[{
                    'kind': 'external_link',
                    'target': link,
                }, {
                    'kind': 'link',
                    'target': None,
                    'name': 'Metadata',
                }],
            ),
            'pageTitle':
            'Edit link metadata (%s)' % link.name,
            'pageSubtitle':
            'Name and target are mandatory',
            'iconUrl':
            url_for(
                'linkThumbnailView',
                dummyId=link.icon_file_id + '_',
                fsPathString='/'.join(lsPath[1:]),
            ),
        }
        return render_template(
            'editlink.html',
            form=form,
            user=user,
            **pageFeatures,
        )
Example #7
0
def _traverseForAccountDeletion(db, parentBox, username, user,
                                path, fileStorageDirectory):
    """ Traverse the tree (one call per box, recursively+iteratively)
        and collect a delete queue while updating items found in various
        ways (deletions, icon resets, metadata resets, forced renames).
    """
    fsDeleteQueue = []
    for file in getFilesFromBox(db, parentBox):
        if (file.creator_username == username or
                file.editor_username == username):
            fsDeleteQueue += deleteFile(
                db,
                parentBox,
                file,
                None,
                fileStorageDirectory=fileStorageDirectory,
                skipCommit=True,
                accountDeletionInProgress=True,
            )
        else:
            if file.icon_file_id_username == username:
                fsDeleteQueue += updateFileThumbnail(
                    db,
                    file,
                    None,
                    None,
                    user,
                    fileStorageDirectory=fileStorageDirectory,
                    accountDeletionInProgress=True,
                    skipCommit=True,
                )
                iconedFile = getFileFromParent(db, parentBox, file.name, None)
            else:
                iconedFile = file
            # "iconed" as in "icon-wise fixed"
            if iconedFile.metadata_username == username:
                newFileName = findFirstAvailableObjectNameInBox(
                    db,
                    parentBox,
                    prefix='REDACTED_FILE_',
                    suffix='',
                )
                newDescription = 'File name redacted upon account deletion'
                newFile = File(**recursivelyMergeDictionaries(
                    {
                        'name': newFileName,
                        'description': newDescription,
                        'metadata_username': '',
                    },
                    defaultMap=iconedFile.asDict(),
                ))
                updateFile(
                    db,
                    path,
                    iconedFile.name,
                    newFile,
                    None,
                    accountDeletionInProgress=True,
                    skipCommit=True,
                )
    #
    for link in getLinksFromBox(db, parentBox):
        if link.creator_username == username:
            fsDeleteQueue += deleteLink(
                db,
                parentBox,
                link,
                None,
                fileStorageDirectory=fileStorageDirectory,
                skipCommit=True,
                accountDeletionInProgress=True,
            )
        else:
            if link.icon_file_id_username == username:
                fsDeleteQueue += updateLinkThumbnail(
                    db,
                    link,
                    None,
                    None,
                    user,
                    fileStorageDirectory=fileStorageDirectory,
                    accountDeletionInProgress=True,
                    skipCommit=True,
                )
                iconedLink = getLinkFromParent(db, parentBox, link.name, None)
            else:
                iconedLink = link
            # "iconed" as in "icon-wise fixed"
            if iconedLink.metadata_username == username:
                newLinkName = findFirstAvailableObjectNameInBox(
                    db,
                    parentBox,
                    prefix='REDACTED_LINK_',
                    suffix='',
                )
                newDescription = 'Link data redacted upon account deletion'
                newLink = Link(**recursivelyMergeDictionaries(
                    {
                        'name': newLinkName,
                        'description': newDescription,
                        'target': '#',
                        'metadata_username': '',
                    },
                    defaultMap=iconedLink.asDict(),
                ))
                updateLink(
                    db,
                    path,
                    iconedLink.name,
                    newLink,
                    None,
                    accountDeletionInProgress=True,
                    skipCommit=True,
                )
    #
    for box in getBoxesFromParent(
            db, parentBox, None, accountDeletionInProgress=True):
        if box is not None and box.box_name != '':
            fsDeleteQueue += _traverseForAccountDeletion(
                db,
                box,
                username,
                user,
                path + [box.box_name],
                fileStorageDirectory=fileStorageDirectory,
            )
            if box.creator_username == username and _boxHasNoChildren(db, box):
                fsDeleteQueue += deleteBox(
                    db,
                    box,
                    parentBox,
                    None,
                    fileStorageDirectory=fileStorageDirectory,
                    accountDeletionInProgress=True,
                    skipCommit=True,
                )
            else:
                if (box.icon_file_id_username == username or
                        box.creator_username == username):
                    fsDeleteQueue += updateBoxThumbnail(
                        db,
                        box,
                        None,
                        None,
                        user,
                        fileStorageDirectory=fileStorageDirectory,
                        accountDeletionInProgress=True,
                        skipCommit=True,
                    )
                    iconedBox = getBoxFromPath(
                        db,
                        path + [box.box_name],
                        None,
                        accountDeletionInProgress=True,
                    )
                else:
                    iconedBox = box
                #
                if (iconedBox.metadata_username == username or
                        iconedBox.creator_username == username):
                    #
                    newBoxName = findFirstAvailableObjectNameInBox(
                        db,
                        parentBox,
                        prefix='REDACTED_BOX_',
                        suffix='',
                    )
                    newDescription = 'Box name redacted upon account deletion'
                    mdNewBoxContrib = {
                            'box_name': newBoxName,
                            'description': newDescription,
                            'title': newBoxName,
                            'metadata_username': '',
                    }
                    #
                    if iconedBox.creator_username == username:
                        cNewBoxContrib = {
                            'creator_username': '',
                        }
                    else:
                        cNewBoxContrib = {}
                    #
                    newBox = Box(**recursivelyMergeDictionaries(
                        recursivelyMergeDictionaries(
                            mdNewBoxContrib,
                            defaultMap=cNewBoxContrib,
                        ),
                        defaultMap=iconedBox.asDict(),
                    ))
                    updateBox(
                        db,
                        path + [box.box_name],
                        newBox,
                        None,
                        accountDeletionInProgress=True,
                        skipCommit=True,
                    )
    #
    return fsDeleteQueue
Example #8
0
def setIconView(mode, itemPathString=''):
    """ Route to set/replace the thumbnail of various items."""
    if (mode == 'au' and not g.settings['behaviour']['behaviour_admin_powers']
        ['admin_is_god']['value']):
        request._onErrorUrl = url_for('adminHomeUsersView')
        raise OstracionError('This feature is turned off in the configuration')
    else:
        user = g.user
        form = UploadIconForm()
        db = dbGetDatabase()
        tempFileDirectory = g.settings['system']['system_directories'][
            'temp_directory']['value']
        fileStorageDirectory = g.settings['system']['system_directories'][
            'fs_directory']['value']
        if mode == 'b':
            boxPath = splitPathString(itemPathString)
            request._onErrorUrl = url_for(
                'lsView',
                lsPathString='/'.join(boxPath[1:]),
            )
            parentBox = None
            thisItem = getBoxFromPath(db, boxPath, user)
            itemName = thisItem.getName()
            pageFeatures = {
                'breadCrumbs':
                makeBreadCrumbs(
                    splitPathString(itemPathString),
                    g,
                    appendedItems=[{
                        'kind': 'link',
                        'target': None,
                        'name': 'Icon',
                    }],
                ),
            }
        elif mode == 'f':
            fullPath = splitPathString(itemPathString)
            boxPath, fileName = fullPath[:-1], fullPath[-1]
            request._onErrorUrl = url_for(
                'lsView',
                lsPathString='/'.join(boxPath[1:]),
            )
            parentBox = getBoxFromPath(db, boxPath, user)
            thisItem = getFileFromParent(db, parentBox, fileName, user)
            itemName = thisItem.getName()
            pageFeatures = {
                'breadCrumbs':
                makeBreadCrumbs(
                    splitPathString(itemPathString)[:-1],
                    g,
                    appendedItems=[{
                        'kind': 'file',
                        'target': thisItem,
                    }, {
                        'kind': 'link',
                        'target': None,
                        'name': 'Icon',
                    }],
                ),
            }
        elif mode == 'l':
            fullPath = splitPathString(itemPathString)
            boxPath, linkName = fullPath[:-1], fullPath[-1]
            request._onErrorUrl = url_for(
                'lsView',
                lsPathString='/'.join(boxPath[1:]),
            )
            parentBox = getBoxFromPath(db, boxPath, user)
            thisItem = getLinkFromParent(db, parentBox, linkName, user)
            itemName = thisItem.getName()
            pageFeatures = {
                'breadCrumbs':
                makeBreadCrumbs(
                    splitPathString(itemPathString)[:-1],
                    g,
                    appendedItems=[{
                        'kind': 'external_link',
                        'target': thisItem,
                    }, {
                        'kind': 'link',
                        'target': None,
                        'name': 'Icon',
                    }],
                ),
            }
        elif mode == 'u':
            pageFeatures = prepareTaskPageFeatures(
                userProfilePageDescriptor,
                ['root', 'icon'],
                g,
                overrides={
                    'pageTitle': None,
                    'pageSubtitle': None,
                    'iconUrl': None,
                },
            )
            thisItem = user
            itemName = thisItem.getName()
            parentBox = None
        elif mode == 'au':
            pageFeatures = prepareTaskPageFeatures(
                adminPageDescriptor,
                ['root', 'users'],
                g,
                appendedItems=[{
                    'kind': 'link',
                    'link': False,
                    'target': None,
                    'name': 'Icon',
                }],
                overrides={
                    'pageTitle': None,
                    'pageSubtitle': None,
                    'iconUrl': None,
                },
            )
            if userIsAdmin(db, user):
                thisItem = dbGetUser(db, itemPathString)
                itemName = thisItem.getName()
                parentBox = None
            else:
                raise OstracionError('Insufficient permissions')
        elif mode == 's':
            pageFeatures = prepareTaskPageFeatures(
                adminPageDescriptor,
                ['root', 'settings', 'images'],
                g,
                appendedItems=[{
                    'kind': 'link',
                    'link': False,
                    'target': None,
                    'name': 'Set image',
                }],
                overrides={
                    'pageTitle': None,
                    'pageSubtitle': None,
                    'iconUrl': None,
                },
            )
            if userIsAdmin(db, user):
                settingGroupId, settingId = itemPathString.split('/')
                thisItem = g.settings['image'][settingGroupId][settingId]
                itemName = thisItem['setting'].getName()
                parentBox = None
            else:
                raise OstracionError('Insufficient permissions')
        else:
            raise RuntimeError('Unknown mode encountered')
        #
        if form.validate_on_submit():
            #
            storageSuccess = storeFileAsThumbnail(
                db,
                fileToSave=form.file.data,
                mode=mode,
                thumbnailFormat=determineThumbnailFormatByModeAndTarget(
                    db,
                    mode,
                    thisItem,
                ),
                targetItem=thisItem,
                parentBox=parentBox,
                user=user,
                tempFileDirectory=tempFileDirectory,
                fileStorageDirectory=fileStorageDirectory,
            )
            if not storageSuccess:
                raise OstracionError('Could not set the icon')
            #
            if mode in {'f', 'b', 'l'}:
                return redirect(
                    url_for(
                        'lsView',
                        lsPathString='/'.join(boxPath[1:-1] if mode ==
                                              'b' else boxPath[1:]),
                    ))
            elif mode == 'u':
                return redirect(url_for('userProfileView', ))
            elif mode == 'au':
                return redirect(url_for('adminHomeUsersView', ))
            elif mode == 's':
                return redirect(url_for('adminHomeSettingsImagesView', ))
            else:
                raise RuntimeError('Unknown mode encountered')
        else:
            #
            titleMap = {
                'f': 'Set File Icon',
                'l': 'Set Link Icon',
                'b': 'Set Box Icon',
                'u': 'Set User Icon',
                'au': 'Set User Icon (as admin)',
                's': 'Set Application Image',
            }
            modeNameMap = {
                'f': 'for file',
                'l': 'for link',
                'b': 'for box',
                'u': 'for user',
                'au': '(as admin) for user',
                's': 'for setting',
            }
            finalPageFeatures = recursivelyMergeDictionaries(
                {
                    'pageTitle':
                    titleMap[mode],
                    'pageSubtitle':
                    'Upload an image file %s "%s"' % (
                        modeNameMap[mode],
                        itemName,
                    ),
                },
                defaultMap=pageFeatures,
            )
            if mode == 'u':
                finalPageFeatures['iconUrl'] = url_for(
                    'userThumbnailView',
                    dummyId='%s_' % thisItem.icon_file_id,
                    username=thisItem.username,
                )
            elif mode == 'au':
                finalPageFeatures['iconUrl'] = url_for(
                    'userThumbnailView',
                    dummyId='%s_' % thisItem.icon_file_id,
                    username=thisItem.username,
                )
            elif mode == 's':
                finalPageFeatures['iconUrl'] = makeSettingImageUrl(
                    g,
                    settingGroupId,
                    settingId,
                )
            elif mode == 'b':
                finalPageFeatures['iconUrl'] = url_for(
                    'boxThumbnailView',
                    dummyId=thisItem.icon_file_id + '_',
                    boxPathString='/'.join(boxPath[1:]),
                )
            elif mode == 'f':
                finalPageFeatures['iconUrl'] = url_for(
                    'fileThumbnailView',
                    dummyId=thisItem.icon_file_id + '_',
                    fsPathString='/'.join(boxPath[1:] + [thisItem.name]),
                )
            elif mode == 'l':
                finalPageFeatures['iconUrl'] = url_for(
                    'linkThumbnailView',
                    dummyId=thisItem.icon_file_id + '_',
                    fsPathString='/'.join(boxPath[1:] + [thisItem.name]),
                )
            #
            return render_template(
                'uploadicon.html',
                form=form,
                user=user,
                mode=mode,
                itemPathString=itemPathString,
                **finalPageFeatures,
            )
Example #9
0
def unsetIconView(mode, itemPathString=''):
    """Route for explicit removal of thumbnail, if any, to various items."""
    if (mode == 'au' and not g.settings['behaviour']['behaviour_admin_powers']
        ['admin_is_god']['value']):
        request._onErrorUrl = url_for('adminHomeUsersView')
        raise OstracionError('This feature is turned off in the configuration')
    else:
        user = g.user
        form = UploadIconForm()
        db = dbGetDatabase()
        #
        tempFileDirectory = g.settings['system']['system_directories'][
            'temp_directory']['value']
        fileStorageDirectory = g.settings['system']['system_directories'][
            'fs_directory']['value']
        #
        if mode == 'b':
            modeName = 'box'
            boxPath = splitPathString(itemPathString)
            thisItem = getBoxFromPath(db, boxPath, user)
            parentBox = None
        elif mode == 'f':
            modeName = 'file'
            fullPath = splitPathString(itemPathString)
            boxPath, fileName = fullPath[:-1], fullPath[-1]
            parentBox = getBoxFromPath(db, boxPath, user)
            thisItem = getFileFromParent(db, parentBox, fileName, user)
        elif mode == 'l':
            modeName = 'link'
            fullPath = splitPathString(itemPathString)
            boxPath, linkName = fullPath[:-1], fullPath[-1]
            parentBox = getBoxFromPath(db, boxPath, user)
            thisItem = getLinkFromParent(db, parentBox, linkName, user)
        elif mode == 'u':
            modeName = 'user'
            parentBox = None
            thisItem = user
        elif mode == 'au':
            modeName = 'adminuser'
            if userIsAdmin(db, user):
                thisItem = dbGetUser(db, itemPathString)
                parentBox = None
            else:
                raise OstracionError('Insufficient permissions')
        elif mode == 's':
            modeName = 'settingIcon'
            if userIsAdmin(db, user):
                settingGroupId, settingId = itemPathString.split('/')
                thisItem = g.settings['image'][settingGroupId][settingId]
                parentBox = None
            else:
                raise OstracionError('Insufficient permissions')
        else:
            raise RuntimeError('Unknown mode encountered')
        #
        storageSuccess = storeFileAsThumbnail(
            db,
            fileToSave=None,
            mode=mode,
            thumbnailFormat=determineThumbnailFormatByModeAndTarget(
                db,
                mode,
                thisItem,
            ),
            targetItem=thisItem,
            parentBox=parentBox,
            user=user,
            tempFileDirectory=tempFileDirectory,
            fileStorageDirectory=fileStorageDirectory,
        )
        if not storageSuccess:
            raise OstracionError('Could not unset the icon')
        #
        if mode in {'f', 'b', 'l'}:
            return redirect(
                url_for(
                    'lsView',
                    lsPathString='/'.join(boxPath[1:-1] if mode ==
                                          'b' else boxPath[1:]),
                ))
        elif mode == 'u':
            return redirect(url_for('userProfileView', ))
        elif mode == 'au':
            return redirect(url_for('adminHomeUsersView', ))
        elif mode == 's':
            return redirect(url_for('adminHomeSettingsImagesView', ))
        else:
            raise RuntimeError('Unknown mode encountered')