Ejemplo n.º 1
0
function BuildViewer($forDwf = true)
{
    global $debug, $webLayoutDefinition, $cmds, $locale;
    global $sessionId, $username, $password, $orgSessionId;
    global $mapName;
    global $product;
    SetLocalizedFilesPath(GetLocalizationPath());
    try {
        // Initialize web tier with the site configuration file.
        InitializeWebTier();
        //fetch the parameters for this request
        //
        GetRequestParameters();
        //Open a connection with the server
        //
        $createSession = true;
        $cred = new MgUserInformation();
        if ($sessionId != '') {
            $cred->SetMgSessionId($sessionId);
            $createSession = false;
        } else {
            if ($username != '') {
                $cred->SetMgUsernamePassword($username, $password);
            } else {
                requestAuthentication();
                return;
            }
        }
        $site = new MgSiteConnection();
        $cred->SetLocale($locale);
        $cred->SetClientIp(GetClientIp());
        $cred->SetClientAgent(GetClientAgent());
        $site->Open($cred);
        if ($createSession) {
            $site1 = $site->GetSite();
            $sessionId = $site1->CreateSession();
            if ($forDwf == false) {
                $orgSessionId = $sessionId;
            }
        }
        //Get a MgWebLayout object initialized with the specified web layout definition
        //
        $webLayout = null;
        try {
            $resourceSrvc = $site->CreateService(MgServiceType::ResourceService);
            $webLayoutId = new MgResourceIdentifier($webLayoutDefinition);
            $webLayout = new MgWebLayout($resourceSrvc, $webLayoutId);
        } catch (MgUnauthorizedAccessException $e) {
            requestAuthentication();
            return;
        } catch (MgException $e) {
            $shortError = $e->GetExceptionMessage();
            $longErrorMsg = EscapeForHtml($e->GetDetails());
            header("HTTP/1.1 559 ");
            header('Content-Type: text/html; charset=utf-8');
            header("Status: 559 {$shortError}");
            echo "<html>\n<body>\n";
            echo $longErrorMsg;
            echo "</body>\n</html>\n";
            return;
        }
        //calculate the size of the variable elements of the viewer
        //
        $toolBar = $webLayout->GetToolBar();
        $statusBar = $webLayout->GetStatusBar();
        $taskPane = $webLayout->GetTaskPane();
        $infoPane = $webLayout->GetInformationPane();
        $taskBar = $taskPane->GetTaskBar();
        $mapDef = $webLayout->GetMapDefinition();
        $startupScriptCode = $webLayout->GetStartupScript();
        $selectionColor = $webLayout->GetSelectionColor();
        $mapImgFormat = $webLayout->GetMapImageFormat();
        $selImgFormat = $webLayout->GetSelectionImageFormat();
        $pointBuffer = $webLayout->GetPointSelectionBuffer();
        $showTaskPane = $taskPane->IsVisible();
        $showTaskBar = $taskBar->IsVisible();
        $showStatusbar = $statusBar->IsVisible();
        $showToolbar = $toolBar->IsVisible();
        $taskPaneWidth = $taskPane->GetWidth();
        $toolbarHeight = 30;
        $taskbarHeight = 30;
        $statusbarHeight = 26;
        $taskWidth = $showTaskPane ? $taskPaneWidth : 0;
        $toolbarHeight = $showToolbar ? $toolbarHeight : 0;
        $taskbarHeight = $showTaskBar ? $taskbarHeight : 0;
        $statusbarHeight = $showStatusbar ? $statusbarHeight : 0;
        //Encode the initial url so that it does not trip any sub-frames (especially if this url has parameters)
        $taskPaneUrl = urlencode($taskPane->GetInitialTaskUrl());
        $vpath = GetSurroundVirtualPath();
        $defHome = false;
        if ($taskPaneUrl == "") {
            $taskPaneUrl = "gettingstarted.php";
            $defHome = true;
        }
        $mapDefinitionUrl = urlencode($mapDef);
        // NOTE:
        //
        // We don't open a MgMap because it is being created by mapframe.php that is also probably running
        // as this script is running. However the naming convention is fixed enough that we can figure out
        // what to pass to the Task Pane
        $resId = new MgResourceIdentifier($mapDef);
        $mapName = $resId->GetName();
        $title = $webLayout->GetTitle();
        $enablePingServer = $webLayout->GetEnablePingServer();
        $showLegend = $infoPane->IsLegendBandVisible();
        $showProperties = $infoPane->IsPropertiesBandVisible();
        if ($showLegend || $showProperties) {
            if ($infoPane->IsVisible()) {
                $infoWidth = $infoPane->GetWidth();
                if ($infoWidth < 5) {
                    $infoWidth = 5;
                }
                //ensure visible
            } else {
                $showProperties = $showLegend = false;
                $infoWidth = 0;
            }
        } else {
            $infoWidth = 0;
        }
        //calculate the url of the inner pages
        //
        $srcToolbar = $showToolbar ? 'src="' . $vpath . 'toolbar.php?LOCALE=' . $locale . '"' : '';
        $srcStatusbar = $showStatusbar ? 'src="' . $vpath . 'statusbar.php?LOCALE=' . $locale . '"' : "";
        $srcTaskFrame = $showTaskPane ? 'src="' . $vpath . 'taskframe.php?MAPNAME=' . $mapName . '&WEBLAYOUT=' . urlencode($webLayoutDefinition) . '&DWF=' . ($forDwf ? "1" : "0") . '&SESSION=' . ($sessionId != "" ? $sessionId : "") . '&LOCALE=' . $locale . '"' : '';
        $srcTaskBar = 'src="' . $vpath . 'taskbar.php?LOCALE=' . $locale . '"';
        //view center
        //
        $ptCenter = $webLayout->GetCenter();
        if ($ptCenter == null) {
            $center = "null";
        } else {
            $coord = $ptCenter->GetCoordinate();
            $center = sprintf("new Point(%f, %f)", $coord->GetX(), $coord->GetY());
        }
        //Process commands and declare command objects
        //
        $commands = $webLayout->GetCommands();
        $cmdObjects = "";
        $cmdObject = "";
        $navCmdIndex = 0;
        $searchCmdIndex = 0;
        $measureCmdIndex = 0;
        $printCmdIndex = 0;
        $scriptCmdIndex = 0;
        $userCode = "";
        $userCodeCalls = "\nswitch(funcIndex)\n{\n";
        $selAwareCmdCount = 0;
        $selAwareCmds = "";
        for ($i = 0; $i < $commands->GetCount(); $i++) {
            $cmd = $commands->GetItem($i);
            if (!$cmd->IsUsed()) {
                continue;
            }
            $tgtViewer = $cmd->GetTargetViewerType();
            if (($tgtViewer == MgWebTargetViewerType::Dwf) != ($forDwf == true) && $tgtViewer != MgWebTargetViewerType::All) {
                continue;
            }
            $name = $cmd->GetName();
            $action = $cmd->GetAction();
            if ($action == MgWebActions::Search) {
                $cols = "var resCols" . $searchCmdIndex . " = new Array();\n";
                if ($cmd->GetResultColumnCount() > 0) {
                    for ($j = 0; $j < $cmd->GetResultColumnCount(); $j++) {
                        $col = sprintf("resCols%d[%d] = new ResultColumn(\"%s\", \"%s\");\n", $searchCmdIndex, $j, StrEscape($cmd->GetColumnDisplayNameAt($j)), StrEscape($cmd->GetColumnPropertyNameAt($j)));
                        $cols = $cols . $col;
                    }
                }
                $cmdObjects = $cmdObjects . $cols;
                // declare a new search command object
                $cmdObject = sprintf("commands[%d] = new SearchCommand(\"%s\", \"%s\", %d, \"%s\", \"%s\", \"%s\", \"%s\", \"%s\", \"%s\", resCols%d, \"%s\", %d, %d, \"%s\");\n", $i, StrEscape($name), StrEscape($cmd->GetLabel()), $cmd->GetAction(), $cmd->GetIconUrl(), $cmd->GetDisabledIconUrl(), StrEscape($cmd->GetTooltip()), StrEscape($cmd->GetDescription()), $cmd->GetLayer(), StrEscape($cmd->GetPrompt()), $searchCmdIndex, StrEscape($cmd->GetFilter()), $cmd->GetMatchLimit(), $cmd->GetTarget(), $cmd->GetTargetName());
                $searchCmdIndex++;
            } else {
                if ($action == MgWebActions::InvokeUrl) {
                    // create the parameter objects
                    $params = "var navParams" . $navCmdIndex . " = new Array();\n";
                    $layers = "var layers" . $navCmdIndex . " = new Array();\n";
                    if ($cmd->GetParameterCount() > 0) {
                        for ($j = 0; $j < $cmd->GetParameterCount(); $j++) {
                            $param = sprintf("navParams%d[%d] = new NavParam(\"%s\", \"%s\");\n", $navCmdIndex, $j, $cmd->GetParameterNameAt($j), $cmd->GetParameterValueAt($j));
                            $params = $params . $param;
                        }
                    }
                    for ($j = 0; $j < $cmd->GetLayerCount(); $j++) {
                        $layer = sprintf("layers%d[%d] = \"%s\";\n", $navCmdIndex, $j, $cmd->GetLayerNameAt($j));
                        $layers = $layers . $layer;
                    }
                    $cmdObjects = $cmdObjects . $params . $layers;
                    if ($cmd->DisabledIfSelectionEmpty() || $cmd->GetLayerCount() > 0) {
                        $selAwareCmds = $selAwareCmds . sprintf("selectionAwareCmds[%d] = %d;\n", $selAwareCmdCount, $i);
                        $selAwareCmdCount++;
                    }
                    // declare a new invokeurl command object
                    $cmdObject = sprintf("commands[%d] = new InvokeUrlCommand(\"%s\", %d, \"%s\", \"%s\", \"%s\", \"%s\", \"%s\", navParams%d, %s, layers%d, %d, \"%s\");\n", $i, StrEscape($name), $cmd->GetAction(), $cmd->GetIconUrl(), $cmd->GetDisabledIconUrl(), StrEscape($cmd->GetTooltip()), StrEscape($cmd->GetDescription()), $cmd->GetUrl(), $navCmdIndex, $cmd->DisabledIfSelectionEmpty() ? "true" : "false", $navCmdIndex, $cmd->GetTarget(), $cmd->GetTargetName());
                    $navCmdIndex++;
                } else {
                    if ($action == MgWebActions::Buffer || $action == MgWebActions::SelectWithin || $action == MgWebActions::Measure || $action == MgWebActions::ViewOptions || $action == MgWebActions::GetPrintablePage) {
                        if ($action == MgWebActions::Measure) {
                            if ($measureCmdIndex != 0) {
                                throw new Exception(GetLocalizedString("ALREADYINMEASURE", $locale));
                            }
                            $measureCmdIndex = $i;
                        } else {
                            if ($action == MgWebActions::SelectWithin) {
                                $selAwareCmds = $selAwareCmds . sprintf("selectionAwareCmds[%d] = %d;\n", $selAwareCmdCount, $i);
                                $selAwareCmdCount++;
                            }
                        }
                        // declare a new ui target command object
                        $cmdObject = sprintf("commands[%d] = new UiTargetCommand(\"%s\", %d, \"%s\", \"%s\", \"%s\", \"%s\", %d, \"%s\");\n", $i, StrEscape($name), $cmd->GetAction(), $cmd->GetIconUrl(), $cmd->GetDisabledIconUrl(), StrEscape($cmd->GetTooltip()), StrEscape($cmd->GetDescription()), $cmd->GetTarget(), $cmd->GetTargetName());
                    } else {
                        if ($action == MgWebActions::Help) {
                            // declare a new help  command object
                            $cmdObject = sprintf("commands[%d] = new HelpCommand(\"%s\", %d, \"%s\", \"%s\", \"%s\", \"%s\", \"%s\", %d, \"%s\");\n", $i, StrEscape($name), $cmd->GetAction(), $cmd->GetIconUrl(), $cmd->GetDisabledIconUrl(), StrEscape($cmd->GetTooltip()), StrEscape($cmd->GetDescription()), $cmd->GetUrl(), $cmd->GetTarget(), $cmd->GetTargetName());
                        } else {
                            if ($action == MgWebActions::PrintMap) {
                                // declare the print layouts
                                $layouts = "var layouts" . $printCmdIndex . " = new Array();\n";
                                for ($j = 0; $j < $cmd->GetPrintLayoutCount(); $j++) {
                                    $layout = "";
                                    $layout = sprintf("layouts%d[%d] = \"%s\";\n", $printCmdIndex, $j, $cmd->GetPrintLayoutAt($j));
                                    $layouts = $layouts . $layout;
                                }
                                $cmdObjects = $cmdObjects . $layouts;
                                // declare a new print command object
                                $cmdObject = sprintf("commands[%d] = new PrintCommand(\"%s\", %d, \"%s\", \"%s\", \"%s\", \"%s\", layouts%d);\n", $i, StrEscape($name), $cmd->GetAction(), $cmd->GetIconUrl(), $cmd->GetDisabledIconUrl(), StrEscape($cmd->GetTooltip()), StrEscape($cmd->GetDescription()), $printCmdIndex);
                                $printCmdIndex++;
                            } else {
                                if ($action == MgWebActions::InvokeScript) {
                                    // declare a new basic command object
                                    $cmdObject = sprintf("commands[%d] = new InvokeScriptCommand(\"%s\", %d, \"%s\", \"%s\", \"%s\", \"%s\", %d);\n", $i, StrEscape($name), $cmd->GetAction(), $cmd->GetIconUrl(), $cmd->GetDisabledIconUrl(), StrEscape($cmd->GetTooltip()), StrEscape($cmd->GetDescription()), $scriptCmdIndex);
                                    $userCode = $userCode . "\nfunction UserFunc" . $scriptCmdIndex . "()\n{\n" . $cmd->GetScriptCode() . "\n}\n";
                                    $userCodeCalls = $userCodeCalls . sprintf("case %d: UserFunc%d(); break;\n", $scriptCmdIndex, $scriptCmdIndex);
                                    $scriptCmdIndex++;
                                } else {
                                    // declare a new basic command object
                                    $cmdObject = sprintf("commands[%d] = new BasicCommand(\"%s\", %d, \"%s\", \"%s\", \"%s\", \"%s\");\n", $i, $name, $cmd->GetAction(), $cmd->GetIconUrl(), $cmd->GetDisabledIconUrl(), StrEscape($cmd->GetTooltip()), StrEscape($cmd->GetDescription()));
                                }
                            }
                        }
                    }
                }
            }
            $cmdObjects = $cmdObjects . $cmdObject;
            $cmds[$name] = $i;
        }
        $userCodeCalls = $userCodeCalls . "\n}\n";
        //Declare toolbar items
        //
        $toolbarDef = DeclareUiItems($toolBar->GetWidgets(), "toolbarItems");
        //Declare task items
        $taskListDef = DeclareUiItems($taskBar->GetTaskList(), "taskItems");
        //Declare context menu items
        $ctxMenu = $webLayout->GetContextMenu();
        if ($ctxMenu->IsVisible()) {
            $ctxMenuDef = DeclareUiItems($ctxMenu, "ctxMenuItems");
        } else {
            $ctxMenuDef = "";
        }
        //task items texts
        //
        $taskItemTexts = "";
        $taskButtons = $taskBar->GetTaskButtons();
        for ($i = 0; $i < 4; $i++) {
            $btn = $taskButtons->GetWidget($i);
            if ($i > 0) {
                $taskItemTexts = $taskItemTexts . ",";
            }
            $taskItemTexts = $taskItemTexts . '"' . StrEscape($btn->GetName()) . '",' . '"' . StrEscape($btn->GetTooltip()) . '",' . '"' . StrEscape($btn->GetDescription()) . '",' . '"' . StrEscape($btn->GetIconUrl()) . '",' . '"' . StrEscape($btn->GetDisabledIconUrl()) . '"';
        }
        //transmit the session to the map pane if one was specified to this request
        if ($orgSessionId != "") {
            $sessionParam = "&SESSION=" . $orgSessionId;
        } else {
            $sessionParam = "";
        }
        //load the frameset template and format it
        $frameset = "";
        $viewerType = $forDwf ? "DWF" : "HTML";
        if ($showTaskBar) {
            $frameSetTempl = file_get_contents("../viewerfiles/framesettaskbar.templ");
            $frameset = sprintf($frameSetTempl, $statusbarHeight, $taskWidth, $toolbarHeight, $srcToolbar, $vpath . "mapframe.php", $mapDefinitionUrl, $viewerType, $showLegend ? 1 : 0, $showProperties ? 1 : 0, $infoWidth, $locale, $webLayout->GetHyperlinkTarget(), $webLayout->GetHyperlinkTargetFrame(), $webLayout->IsZoomControlVisible() ? 1 : 0, $selectionColor, $mapImgFormat, $selImgFormat, $pointBuffer, $sessionParam, $vpath . "formframe.php", $taskbarHeight + 1, $srcTaskBar, $srcTaskFrame, $srcStatusbar);
        } else {
            $frameSetTempl = file_get_contents("../viewerfiles/framesetnotaskbar.templ");
            $frameset = sprintf($frameSetTempl, $toolbarHeight, $statusbarHeight, $srcToolbar, $taskWidth, $vpath . "mapframe.php", $mapDefinitionUrl, $viewerType, $showLegend ? 1 : 0, $showProperties ? 1 : 0, $infoWidth, $locale, $webLayout->GetHyperlinkTarget(), $webLayout->GetHyperlinkTargetFrame(), $webLayout->IsZoomControlVisible() ? 1 : 0, $selectionColor, $mapImgFormat, $selImgFormat, $pointBuffer, $sessionParam, $srcTaskFrame, $vpath . "formframe.php", $srcStatusbar);
        }
        $homePageUrl = urldecode($taskPaneUrl);
        if (strlen($homePageUrl) < 8 || strncasecmp($homePageUrl, "http://", 7) != 0) {
            $homePageUrl = $vpath . $homePageUrl;
        }
        //load the HTML template and format it
        //
        $templ = Localize(file_get_contents("../viewerfiles/mainframe.templ"), $locale, GetClientOS());
        print sprintf($templ, $title, GetRootVirtualFolder() . "/mapagent/mapagent.fcgi", $enablePingServer ? 1 : 0, $site->GetSite()->GetSessionTimeout(), $locale, $showToolbar ? 1 : 0, $showStatusbar ? 1 : 0, $showTaskPane ? 1 : 0, $showTaskPane ? 0 : ($showTaskBar ? 1 : 0), $homePageUrl, $defHome ? "1" : "0", $webLayoutDefinition, $mapDef, $taskWidth, $center, $webLayout->GetScale(), StrEscape($title), $forDwf ? "1" : "0", $cmdObjects, $toolbarDef, $taskListDef, $ctxMenuDef, $userCode, $taskItemTexts, $selAwareCmds, $startupScriptCode, $vpath . "quickplotpanel.php", $vpath . "measureui.php", $vpath . "searchprompt.php", $vpath . "bufferui.php", $vpath . "selectwithinui.php", $userCodeCalls, $vpath . "viewoptions.php", $frameset);
    } catch (MgUserNotFoundException $e) {
        requestAuthentication();
    } catch (MgAuthenticationFailedException $e) {
        requestAuthentication();
    } catch (MgException $e) {
        // This should be a 500 error of some sort, but
        // in order to give a nice custom error message, it looks as
        // if we shortcut things by using a 200 status.
        $shortError = $e->GetExceptionMessage();
        $longErrorMsg = EscapeForHtml($e->GetDetails());
        header("HTTP/1.1 200 ");
        header('Content-Type: text/html; charset=utf-8');
        header("Status: 200 {$shortError}");
        echo "<html>\n<body>\n";
        echo $longErrorMsg;
        echo "</body>\n</html>\n";
    } catch (Exception $ne) {
        $errorMsg = EscapeForHtml($ne->GetMessage());
        echo $errorMsg;
    }
}
Ejemplo n.º 2
0
            $bgColor = "white";
        }
        $scaleCreationCode = "";
        $scales = array();
        for ($i = 0; $i < $map->GetFiniteDisplayScaleCount(); $i++) {
            $scales[$i] = $map->GetFiniteDisplayScaleAt($i);
        }
        sort($scales);
        for ($i = 0; $i < count($scales); $i++) {
            $scaleCreationCode = $scaleCreationCode . "scales[" . $i . "]=" . str_replace(",", ".", $scales[$i]) . "; ";
        }
        $mapStateId = new MgResourceIdentifier("Session:" . $sessionId . "//" . $mapName . "." . MgResourceType::Map);
        $map->Save($resourceSrvc, $mapStateId);
        $templ = Localize(file_get_contents("../viewerfiles/ajaxmappane.templ"), $locale, GetClientOS());
        $vpath = GetSurroundVirtualPath();
        printf($templ, $tileSizeX, $tileSizeY, GetRootVirtualFolder() . "/mapagent/mapagent.fcgi", $mapName, $mapDefinition, $infoWidth, $showLegend ? "true" : "false", $showProperties ? "true" : "false", $sessionId, $llExtent->GetX(), $llExtent->GetY(), $urExtent->GetX(), $urExtent->GetY(), $metersPerUnit, $unitsType, $bgColor, $hlTgt, $hlTgtName, $vpath . "setselection.php", $showSlider ? "true" : "false", $locale, $scaleCreationCode, $selectionColor, $mapImgFormat, $selImgFormat, $pointBufferSize, $vpath . "ajaxviewerabout.php", $vpath . "legendctrl.php", urlencode($mapName), $sessionId, $locale, $vpath . "propertyctrl.php", $locale);
    } catch (MgException $e) {
        $errorMsg = EscapeForHtml($e->GetDetails());
        echo $errorMsg;
    }
}
//load ajax template code and format it
function GetParameters($params)
{
    global $mapDefinition, $type;
    global $infoWidth, $showLegend, $showProperties, $sessionId;
    global $locale, $hlTgt, $hlTgtName, $showSlider;
    global $selectionColor, $mapImgFormat, $selImgFormat, $pointBufferSize;
    $sessionId = ValidateSessionId(GetParameter($params, 'SESSION'));
    $locale = ValidateLocaleString(GetParameter($params, 'LOCALE'));
    $hlTgt = ValidateHyperlinkTargetValue(GetParameter($params, 'HLTGT'));
Ejemplo n.º 3
0
$locale = "en";
$mapName = "";
$sessionId = "";
$isTitle = "";
$isLegend = "";
$isArrow = "";
$title = "";
$scale = "";
$centerX = "";
$centerY = "";
$dpi = "";
GetRequestParameters();
$templ = file_get_contents("printablepage.templ");
SetLocalizedFilesPath(GetLocalizationPath());
$templ = Localize($templ, $locale, GetClientOS());
$agent = GetRootVirtualFolder() . "/mapagent/mapagent.fcgi";
print sprintf($templ, $title, $agent, $scale, $centerX, $centerY, $dpi, $mapName, $sessionId, $locale, $isTitle, $isLegend, $isArrow, $isTitle == "1" ? $title : "", $agent, $mapName, $sessionId);
function GetParameters($params)
{
    global $mapName, $sessionId, $title, $locale;
    global $scale, $centerX, $centerY, $dpi;
    global $isTitle, $isLegend, $isArrow;
    if (isset($params['LOCALE'])) {
        $locale = $params['LOCALE'];
    }
    $mapName = $params['MAPNAME'];
    $sessionId = $params['SESSION'];
    $isTitle = $params['ISTITLE'];
    $isLegend = $params['ISLEGEND'];
    $isArrow = $params['ISARROW'];
    $title = $params['TITLE'];
Ejemplo n.º 4
0
     $pageName = $cmdListPage;
 }
 //load the original page
 $locpath = GetLocalizationPath();
 if (file_exists($locpath . "/help/" . $locale . "/" . $pageName)) {
     $orgHtml = file_get_contents($locpath . "/help/" . $locale . "/" . $pageName);
 } else {
     if (file_exists($locpath . "/help/en/" . $pageName)) {
         $orgHtml = file_get_contents($locpath . "/help/en/" . $pageName);
         $locale = GetDefaultLocale();
     } else {
         echo "";
         return;
     }
 }
 $fixedupHtml = FixupPageReferences($orgHtml, $webLayout, $dwf, GetRootVirtualFolder() . "/", $locale);
 if ($pageName == $cmdListPage) {
     //filter out unused commands
     //
     InitializeWebTier();
     $cred = new MgUserInformation($sessionId);
     $cred->SetClientIp(GetClientIp());
     $cred->SetClientAgent(GetClientAgent());
     $site = new MgSiteConnection();
     $site->Open($cred);
     $wli = new MgResourceIdentifier($webLayout);
     $src = new MgByteSource($fixedupHtml, strlen($fixedupHtml));
     $resourceSrvc = $site->CreateService(MgServiceType::ResourceService);
     $wl = new MgWebLayout($resourceSrvc, $wli);
     $pagestream = $wl->ProcessGettingStartedPage($src->GetReader(), $dwf);
     if ($pagestream == null) {