Viewing file:  GadgetHtmlRenderer.php (3.6 KB) -rwxr-xr-x
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<?php
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
require 'GadgetBaseRenderer.php';
/**
* Renders a Gadget's Content type="html" view, inlining the content, feature javascript and javascript initialization
* into the gadget's content. Most of the logic is performed with in the shared GadgetBaseRender class
*
*/
class GadgetHtmlRenderer extends GadgetBaseRenderer {
public function renderGadget(Gadget $gadget, $view) {
$this->setGadget($gadget);
// Was a privacy policy header configured? if so set it
if (Config::get('P3P') != '') {
header("P3P: " . Config::get('P3P'));
}
$content = '';
// Set doctype if quirks = false or empty in the view
if (! empty($view['quirks']) || ! $view['quirks']) {
$content .= "<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.01//EN\" \"http://www.w3.org/TR/html4/strict.dtd\">\n";
}
// Rewriting the gadget's content using the libxml library does impose some restrictions to the validity of the input html, so
// for the time being (until either gadgets are all fixed, or we find a more tolerant html parsing lib), we try to avoid it when we can
$domRewrite = false;
if (isset($gadget->gadgetSpec->rewrite) || Config::get('rewrite_by_default')) {
$domRewrite = true;
} elseif ((strpos($view['content'], 'text/os-data') !== false || strpos($view['content'], 'text/os-template') !== false) && ($gadget->gadgetSpec->templatesDisableAutoProcessing == false)) {
$domRewrite = true;
}
if (!$domRewrite) {
// Manually generate the html document using basic string concatinations instead of using our DOM based functions
$content .= "<html>\n<head>\n<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/>\n";
$content .= '<style>'.Config::get('gadget_css')."</style>\n";
$scripts = $this->getJavaScripts();
if ($scripts['external']) {
$content .= "<script type=\"text/javascript\" src=\"{$scripts['external']}\"></script>\n";
}
if (!empty($scripts['inline'])) {
$content .= "<script type=\"text/javascript\">{$scripts['inline']}</script>\n";
}
$content .= "</head>\n<body>\n";
$content .= $gadget->substitutions->substitute($view['content']);
$content .= '<script type="text/javascript">'.$this->getBodyScript()."</script>\n";
$content .= "\n</body>\n</html>\n";
} else {
// Use the (libxml2 based) DOM rewriter
$content .= "<html><head><meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\"/></head><body>\n";
// Append the content for the selected view
$content .= $gadget->substitutions->substitute($view['content']);
$content .= "\n</body>\n</html>";
$content = $this->parseTemplates($content);
$content = $this->rewriteContent($content);
$content = $this->addTemplates($content);
}
echo $content;
}
}
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