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<?php |
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/** |
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* Iframe page type embeds an iframe of URL of choice into the page. |
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* CMS editor can choose width, height, or set it to attempt automatic size configuration. |
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*/ |
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class IFramePage extends Page |
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{ |
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public static $db = array( |
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'IFrameURL' => 'Text', |
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'AutoHeight' => 'Boolean(1)', |
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'AutoWidth' => 'Boolean(1)', |
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'FixedHeight' => 'Int(500)', |
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'FixedWidth' => 'Int(0)', |
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'AlternateContent' => 'HTMLText', |
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'BottomContent' => 'HTMLText', |
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'ForceProtocol' => 'Varchar', |
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); |
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public static $defaults = array( |
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'AutoHeight' => '1', |
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'AutoWidth' => '1', |
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'FixedHeight' => '500', |
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'FixedWidth' => '0' |
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); |
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public static $description = 'Embeds an iframe into the body of the page.'; |
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public function getCMSFields() |
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{ |
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$fields = parent::getCMSFields(); |
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$fields->removeFieldFromTab('Root.Main', 'Content'); |
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$fields->addFieldToTab('Root.Main', $url = new TextField('IFrameURL', 'Iframe URL')); |
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$url->setRightTitle('Can be absolute (<em>http://silverstripe.com</em>) or relative to this site (<em>about-us</em>).'); |
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$fields->addFieldToTab( |
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'Root.Main', |
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DropdownField::create('ForceProtocol', 'Force protocol?') |
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->setSource(array('http://' => 'http://', 'https://' => 'https://')) |
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->setEmptyString('') |
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->setDescription('Avoids mixed content warnings when iframe content is just available under a specific protocol'), |
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'Metadata' |
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); |
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$fields->addFieldToTab('Root.Main', new CheckboxField('AutoHeight', 'Auto height (only works with same domain URLs)')); |
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$fields->addFieldToTab('Root.Main', new CheckboxField('AutoWidth', 'Auto width (100% of the available space)')); |
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$fields->addFieldToTab('Root.Main', new NumericField('FixedHeight', 'Fixed height (in pixels)')); |
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$fields->addFieldToTab('Root.Main', new NumericField('FixedWidth', 'Fixed width (in pixels)')); |
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$fields->addFieldToTab('Root.Main', new HtmlEditorField('Content', 'Content (appears above iframe)')); |
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$fields->addFieldToTab('Root.Main', new HtmlEditorField('BottomContent', 'Content (appears below iframe)')); |
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$fields->addFieldToTab('Root.Main', new HtmlEditorField('AlternateContent', 'Alternate Content (appears when user has iframes disabled)')); |
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// Move the Metadata field to last position, but make a check for it's |
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// existence first. |
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// |
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// See https://github.com/silverstripe-labs/silverstripe-iframe/issues/18 |
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$mainTab = $fields->findOrMakeTab('Root.Main'); |
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$mainTabFields = $mainTab->FieldList(); |
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$metaDataField = $mainTabFields->fieldByName('Metadata'); |
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if ($metaDataField) { |
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$mainTabFields->removeByName('Metadata'); |
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$mainTabFields->push($metaDataField); |
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} |
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return $fields; |
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} |
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/** |
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* Compute class from the size parameters. |
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*/ |
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public function getClass() |
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{ |
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$class = ''; |
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if ($this->AutoHeight) { |
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$class .= 'iframepage-height-auto'; |
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} |
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return $class; |
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} |
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/** |
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* Compute style from the size parameters. |
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*/ |
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public function getStyle() |
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{ |
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$style = ''; |
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// Always add fixed height as a fallback if autosetting or JS fails. |
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$height = $this->FixedHeight; |
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if (!$height) { |
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$height = 800; |
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} |
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$style .= "height: {$height}px; "; |
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if ($this->AutoWidth) { |
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$style .= "width: 100%; "; |
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} elseif ($this->FixedWidth) { |
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$style .= "width: {$this->FixedWidth}px; "; |
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} |
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return $style; |
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} |
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/** |
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* Ensure that the IFrameURL is a valid url and prevents XSS |
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* |
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* @throws ValidationException |
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* @return ValidationResult |
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*/ |
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public function validate() |
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{ |
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$result = parent::validate(); |
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//whitelist allowed URL schemes |
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$allowed_schemes = array('http', 'https'); |
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if ($matches = parse_url($this->IFrameURL)) { |
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if (isset($matches['scheme']) && !in_array($matches['scheme'], $allowed_schemes)) { |
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$result->error(_t('IFramePage.VALIDATION.BANNEDURLSCHEME', "This URL scheme is not allowed.")); |
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} |
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} |
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return $result; |
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} |
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} |
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class IFramePage_Controller extends Page_Controller |
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{ |
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public function init() |
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{ |
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parent::init(); |
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if ($this->ForceProtocol) { |
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if ($this->ForceProtocol == 'http://' && Director::protocol() != 'http://') { |
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return $this->redirect(preg_replace('#https://#', 'http://', $this->AbsoluteLink())); |
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} elseif ($this->ForceProtocol == 'https://' && Director::protocol() != 'https://') { |
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return $this->redirect(preg_replace('#http://#', 'https://', $this->AbsoluteLink())); |
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} |
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} |
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if ($this->IFrameURL) { |
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Requirements::javascript('iframe/javascript/iframe_page.js'); |
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} |
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} |
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} |
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silverstripe /
silverstripe-iframe
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You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.