rss-bridge/lib/html.php

<?php
function displayBridgeCard($bridgeName, $formats, $isActive = true)
{
	$getHelperButtonsFormat = function ($formats) {
		$buttons = '';
		foreach ($formats as $name) {
			$buttons .= '<button type="submit" name="format" value="'
				. $name
				. '">'
				. $name
				. '</button>'
				. PHP_EOL;
		}

		return $buttons;
	};

	$getFormHeader = function ($bridge) {
		return <<<EOD
			<form method="GET" action="?">
				<input type="hidden" name="action" value="display" />
				<input type="hidden" name="bridge" value="{$bridge}" />
EOD;
	};

	$bridgeElement = Bridge::create($bridgeName);
	$bridgeClass = $bridgeName . 'Bridge';

	if ($bridgeElement == false) {
		return "";
	}

	$name = '<a href="' . $bridgeClass::URI . '">' . $bridgeClass::NAME . '</a>';
	$description = $bridgeClass::DESCRIPTION;

	$card = <<<CARD
		<section id="bridge-{$bridgeName}" data-ref="{$bridgeName}">
			<h2>{$name}</h2>
			<p class="description">
				{$description}
			</p>
			<input type="checkbox" class="showmore-box" id="showmore-{$bridgeName}" />
			<label class="showmore" for="showmore-{$bridgeName}">Show more</label>
CARD;

	// If we don't have any parameter for the bridge, we print a generic form to load it.
	if (count($bridgeClass::PARAMETERS) == 0) {
		$card .= $getFormHeader($bridgeName);

		if ($isActive) {
			if (defined('PROXY_URL') && PROXY_BYBRIDGE) {
				$idArg = 'arg-'
					. urlencode($bridgeName)
					. '-'
					. urlencode('proxyoff')
					. '-'
					. urlencode('_noproxy');

				$card .= '<input id="'
					. $idArg
					. '" type="checkbox" name="_noproxy" />'
					. PHP_EOL;

				$card .= '<label for="'
					. $idArg
					. '">Disable proxy ('
					. ((defined('PROXY_NAME') && PROXY_NAME) ? PROXY_NAME : PROXY_URL)
					. ')</label><br />'
					. PHP_EOL;
			}

			$card .= $getHelperButtonsFormat($formats);
		} else {
			$card .= '<span style="font-weight: bold;">Inactive</span>';
		}

		$card .= '</form>' . PHP_EOL;
	}

	$hasGlobalParameter = array_key_exists('global', $bridgeClass::PARAMETERS);

	if ($hasGlobalParameter) {
		$globalParameters = $bridgeClass::PARAMETERS['global'];
	}

	foreach ($bridgeClass::PARAMETERS as $parameterName => $parameter) {
		if (!is_numeric($parameterName) && $parameterName == 'global') {
			continue;
		}

		if ($hasGlobalParameter) {
			$parameter = array_merge($parameter, $globalParameters);
		}

		if (!is_numeric($parameterName)) {
			$card .= '<h5>' . $parameterName . '</h5>' . PHP_EOL;
		}

		$card .= $getFormHeader($bridgeName);

		foreach ($parameter as $id => $inputEntry) {
			$additionalInfoString = '';

			if (isset($inputEntry['required']) && $inputEntry['required'] === true) {
				$additionalInfoString .= ' required';
			}

			if (isset($inputEntry['pattern'])) {
				$additionalInfoString .= ' pattern="' . $inputEntry['pattern'] . '"';
			}

			if (isset($inputEntry['title'])) {
				$additionalInfoString .= ' title="' . $inputEntry['title'] . '"';
			}

			if (!isset($inputEntry['exampleValue'])) {
				$inputEntry['exampleValue'] = '';
			}

			if (!isset($inputEntry['defaultValue'])) {
				$inputEntry['defaultValue'] = '';
			}

			$idArg = 'arg-'
				. urlencode($bridgeName)
				. '-'
				. urlencode($parameterName)
				. '-'
				. urlencode($id);

			$card .= '<label for="'
				. $idArg
				. '">'
				. $inputEntry['name']
				. ' : </label>'
				. PHP_EOL;

			if (!isset($inputEntry['type']) || $inputEntry['type'] == 'text') {
				$card .= '<input '
					. $additionalInfoString
					. ' id="'
					. $idArg
					. '" type="text" value="'
					. $inputEntry['defaultValue']
					. '" placeholder="'
					. $inputEntry['exampleValue']
					. '" name="'
					. $id
					. '" /><br />'
					. PHP_EOL;
			} elseif ($inputEntry['type'] == 'number') {
				$card .= '<input '
					. $additionalInfoString
					. ' id="'
					. $idArg
					. '" type="number" value="'
					. $inputEntry['defaultValue']
					. '" placeholder="'
					. $inputEntry['exampleValue']
					. '" name="'
					. $id
					. '" /><br />'
					. PHP_EOL;
			} elseif ($inputEntry['type'] == 'list') {
				$card .= '<select '
					. $additionalInfoString
					. ' id="'
					. $idArg
					. '" name="'
					. $id
					. '" >';

				foreach ($inputEntry['values'] as $name => $value) {
					if (is_array($value)) {
						$card .= '<optgroup label="' . htmlentities($name) . '">';
						foreach ($value as $subname => $subvalue) {
							if ($inputEntry['defaultValue'] === $subname
								|| $inputEntry['defaultValue'] === $subvalue) {
								$card .= '<option value="'
									. $subvalue
									. '" selected>'
									. $subname
									. '</option>';
							} else {
								$card .= '<option value="'
									. $subvalue
									. '">'
									. $subname
									. '</option>';
							}
						}
						$card .= '</optgroup>';
					} else {
						if ($inputEntry['defaultValue'] === $name
							|| $inputEntry['defaultValue'] === $value) {
							$card .= '<option value="'
								. $value
								. '" selected>'
								. $name
								. '</option>';
						} else {
							$card .= '<option value="'
								. $value
								. '">'
								. $name
								. '</option>';
						}
					}
				}
				$card .= '</select><br >';
			} elseif ($inputEntry['type'] == 'checkbox') {
				if ($inputEntry['defaultValue'] === 'checked') {
					$card .= '<input '
					. $additionalInfoString
					. ' id="'
					. $idArg
					. '" type="checkbox" name="'
					. $id
					. '" checked /><br />'
					. PHP_EOL;
				} else {
					$card .= '<input '
					. $additionalInfoString
					. ' id="'
					. $idArg
					. '" type="checkbox" name="'
					. $id
					. '" /><br />'
					. PHP_EOL;
				}
			}
		}

		if ($isActive) {
			if (defined('PROXY_URL') && PROXY_BYBRIDGE) {
				$idArg = 'arg-'
					. urlencode($bridgeName)
					. '-'
					. urlencode('proxyoff')
					. '-'
					. urlencode('_noproxy');

				$card .= '<input id="'
					. $idArg
					. '" type="checkbox" name="_noproxy" />'
					. PHP_EOL;

				$card .= '<label for="'
					. $idArg
					. '">Disable proxy ('
					. ((defined('PROXY_NAME') && PROXY_NAME) ? PROXY_NAME : PROXY_URL)
					. ')</label><br />'
					. PHP_EOL;
			}
			$card .= $getHelperButtonsFormat($formats);
		} else {
			$card .= '<span style="font-weight: bold;">Inactive</span>';
		}
		$card .= '</form>' . PHP_EOL;
	}

	$card .= '<label class="showless" for="showmore-' . $bridgeName . '">Show less</label>';
	$card .= '<p class="maintainer">' . $bridgeClass::MAINTAINER . '</p>';
	$card .= '</section>';

	return $card;
}

function sanitize($textToSanitize, $removedTags=array('script','iframe','input','form'), $keptAttributes=array('title','href','src'), $keptText=array())
{
	$htmlContent = str_get_html($textToSanitize);

	foreach ($htmlContent->find('*[!b38fd2b1fe7f4747d6b1c1254ccd055e]') as $element) {
		if (in_array($element->tag, $keptText)) {
			$element->outertext = $element->plaintext;
		} elseif (in_array($element->tag, $removedTags)) {
			$element->outertext = '';
		} else {
			foreach ($element->getAllAttributes() as $attributeName => $attribute) {
				if (!in_array($attributeName, $keptAttributes)) {
					$element->removeAttribute($attributeName);
				}
			}
		}
	}

	return $htmlContent;
}

function defaultImageSrcTo($content, $server)
{
	foreach ($content->find('img') as $image) {
		if (is_null(strpos($image->src, "http"))
			&& is_null(strpos($image->src, "//"))
			&& is_null(strpos($image->src, "data:"))) {
			$image->src = $server . $image->src;
		}
	}
	return $content;
}