367 lines
9.5 KiB
PHP
367 lines
9.5 KiB
PHP
<?php
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/**
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* This file is part of RSS-Bridge, a PHP project capable of generating RSS and
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* Atom feeds for websites that don't have one.
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*
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* For the full license information, please view the UNLICENSE file distributed
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* with this source code.
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*
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* @package Core
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* @license http://unlicense.org/ UNLICENSE
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* @link https://github.com/rss-bridge/rss-bridge
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*/
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/**
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* A generator class for a single bridge card on the home page of RSS-Bridge.
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*
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* This class generates the HTML content for a single bridge card for the home
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* page of RSS-Bridge.
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*
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* @todo Return error if a caller creates an object of this class.
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*/
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final class BridgeCard {
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/**
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* Build a HTML document string of buttons for each of the provided formats
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*
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* @param array $formats A list of format names
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* @return string The document string
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*/
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private static function buildFormatButtons($formats) {
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$buttons = '';
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foreach($formats as $name) {
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$buttons .= '<button type="submit" name="format" value="'
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. $name
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. '">'
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. $name
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. '</button>'
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. PHP_EOL;
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}
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return $buttons;
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}
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/**
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* Get the form header for a bridge card
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*
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* @param string $bridgeName The bridge name
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* @param bool $isHttps If disabled, adds a warning to the form
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* @return string The form header
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*/
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private static function getFormHeader($bridgeName, $isHttps = false) {
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$form = <<<EOD
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<form method="GET" action="?">
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<input type="hidden" name="action" value="display" />
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<input type="hidden" name="bridge" value="{$bridgeName}" />
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EOD;
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if(!$isHttps) {
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$form .= '<div class="secure-warning">Warning :
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This bridge is not fetching its content through a secure connection</div>';
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}
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return $form;
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}
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/**
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* Get the form body for a bridge
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*
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* @param string $bridgeName The bridge name
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* @param array $formats A list of supported formats
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* @param bool $isActive Indicates if a bridge is enabled or not
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* @param bool $isHttps Indicates if a bridge uses HTTPS or not
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* @param string $parameterName Sets the bridge context for the current form
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* @param array $parameters The bridge parameters
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* @return string The form body
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*/
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private static function getForm($bridgeName,
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$formats,
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$isActive = false,
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$isHttps = false,
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$parameterName = '',
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$parameters = array()) {
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$form = self::getFormHeader($bridgeName, $isHttps);
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if(count($parameters) > 0) {
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$form .= '<div class="parameters">';
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foreach($parameters as $id => $inputEntry) {
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if(!isset($inputEntry['exampleValue']))
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$inputEntry['exampleValue'] = '';
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if(!isset($inputEntry['defaultValue']))
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$inputEntry['defaultValue'] = '';
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$idArg = 'arg-'
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. urlencode($bridgeName)
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. '-'
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. urlencode($parameterName)
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. '-'
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. urlencode($id);
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$form .= '<label for="'
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. $idArg
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. '">'
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. filter_var($inputEntry['name'], FILTER_SANITIZE_STRING)
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. '</label>'
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. PHP_EOL;
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if(!isset($inputEntry['type']) || $inputEntry['type'] === 'text') {
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$form .= self::getTextInput($inputEntry, $idArg, $id);
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} elseif($inputEntry['type'] === 'number') {
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$form .= self::getNumberInput($inputEntry, $idArg, $id);
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} else if($inputEntry['type'] === 'list') {
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$form .= self::getListInput($inputEntry, $idArg, $id);
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} elseif($inputEntry['type'] === 'checkbox') {
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$form .= self::getCheckboxInput($inputEntry, $idArg, $id);
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}
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}
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$form .= '</div>';
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}
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if($isActive) {
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$form .= self::buildFormatButtons($formats);
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} else {
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$form .= '<span style="font-weight: bold;">Inactive</span>';
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}
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return $form . '</form>' . PHP_EOL;
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}
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/**
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* Get input field attributes
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*
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* @param array $entry The current entry
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* @return string The input field attributes
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*/
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private static function getInputAttributes($entry) {
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$retVal = '';
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if(isset($entry['required']) && $entry['required'] === true)
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$retVal .= ' required';
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if(isset($entry['pattern']))
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$retVal .= ' pattern="' . $entry['pattern'] . '"';
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if(isset($entry['title']))
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$retVal .= ' title="' . filter_var($entry['title'], FILTER_SANITIZE_STRING) . '"';
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return $retVal;
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}
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/**
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* Get text input
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*
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* @param array $entry The current entry
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* @param string $id The field ID
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* @param string $name The field name
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* @return string The text input field
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*/
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private static function getTextInput($entry, $id, $name) {
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return '<input '
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. self::getInputAttributes($entry)
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. ' id="'
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. $id
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. '" type="text" value="'
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. filter_var($entry['defaultValue'], FILTER_SANITIZE_STRING)
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. '" placeholder="'
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. filter_var($entry['exampleValue'], FILTER_SANITIZE_STRING)
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. '" name="'
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. $name
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. '" />'
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. PHP_EOL;
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}
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/**
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* Get number input
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*
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* @param array $entry The current entry
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* @param string $id The field ID
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* @param string $name The field name
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* @return string The number input field
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*/
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private static function getNumberInput($entry, $id, $name) {
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return '<input '
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. self::getInputAttributes($entry)
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. ' id="'
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. $id
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. '" type="number" value="'
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. filter_var($entry['defaultValue'], FILTER_SANITIZE_NUMBER_INT)
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. '" placeholder="'
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. filter_var($entry['exampleValue'], FILTER_SANITIZE_NUMBER_INT)
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. '" name="'
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. $name
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. '" />'
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. PHP_EOL;
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}
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/**
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* Get list input
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*
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* @param array $entry The current entry
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* @param string $id The field ID
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* @param string $name The field name
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* @return string The list input field
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*/
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private static function getListInput($entry, $id, $name) {
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if(isset($entry['required']) && $entry['required'] === true) {
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Debug::log('The "required" attribute is not supported for lists.');
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unset($entry['required']);
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}
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$list = '<select '
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. self::getInputAttributes($entry)
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. ' id="'
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. $id
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. '" name="'
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. $name
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. '" >';
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foreach($entry['values'] as $name => $value) {
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if(is_array($value)) {
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$list .= '<optgroup label="' . htmlentities($name) . '">';
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foreach($value as $subname => $subvalue) {
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if($entry['defaultValue'] === $subname
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|| $entry['defaultValue'] === $subvalue) {
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$list .= '<option value="'
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. $subvalue
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. '" selected>'
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. $subname
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. '</option>';
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} else {
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$list .= '<option value="'
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. $subvalue
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. '">'
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. $subname
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. '</option>';
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}
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}
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$list .= '</optgroup>';
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} else {
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if($entry['defaultValue'] === $name
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|| $entry['defaultValue'] === $value) {
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$list .= '<option value="'
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. $value
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. '" selected>'
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. $name
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. '</option>';
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} else {
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$list .= '<option value="'
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. $value
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. '">'
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. $name
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. '</option>';
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}
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}
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}
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$list .= '</select>';
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return $list;
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}
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/**
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* Get checkbox input
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*
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* @param array $entry The current entry
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* @param string $id The field ID
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* @param string $name The field name
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* @return string The checkbox input field
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*/
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private static function getCheckboxInput($entry, $id, $name) {
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if(isset($entry['required']) && $entry['required'] === true) {
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Debug::log('The "required" attribute is not supported for checkboxes.');
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unset($entry['required']);
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}
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return '<input '
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. self::getInputAttributes($entry)
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. ' id="'
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. $id
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. '" type="checkbox" name="'
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. $name
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. '" '
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. ($entry['defaultValue'] === 'checked' ? 'checked' : '')
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. ' />'
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. PHP_EOL;
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}
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/**
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* Gets a single bridge card
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*
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* @param string $bridgeName The bridge name
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* @param array $formats A list of formats
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* @param bool $isActive Indicates if the bridge is active or not
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* @return string The bridge card
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*/
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static function displayBridgeCard($bridgeName, $formats, $isActive = true){
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$bridge = Bridge::create($bridgeName);
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if($bridge == false)
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return '';
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$isHttps = strpos($bridge->getURI(), 'https') === 0;
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$uri = $bridge->getURI();
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$name = $bridge->getName();
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$icon = $bridge->getIcon();
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$description = $bridge->getDescription();
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$parameters = $bridge->getParameters();
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if(defined('PROXY_URL') && PROXY_BYBRIDGE) {
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$parameters['global']['_noproxy'] = array(
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'name' => 'Disable proxy (' . ((defined('PROXY_NAME') && PROXY_NAME) ? PROXY_NAME : PROXY_URL) . ')',
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'type' => 'checkbox'
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);
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}
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if(CUSTOM_CACHE_TIMEOUT) {
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$parameters['global']['_cache_timeout'] = array(
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'name' => 'Cache timeout in seconds',
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'type' => 'number',
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'defaultValue' => $bridge->getCacheTimeout()
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);
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}
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$card = <<<CARD
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<section id="bridge-{$bridgeName}" data-ref="{$bridgeName}">
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<h2><a href="{$uri}">{$name}</a></h2>
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<p class="description">{$description}</p>
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<input type="checkbox" class="showmore-box" id="showmore-{$bridgeName}" />
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<label class="showmore" for="showmore-{$bridgeName}">Show more</label>
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CARD;
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// If we don't have any parameter for the bridge, we print a generic form to load it.
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if(count($parameters) === 0
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|| count($parameters) === 1 && array_key_exists('global', $parameters)) {
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$card .= self::getForm($bridgeName, $formats, $isActive, $isHttps);
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} else {
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foreach($parameters as $parameterName => $parameter) {
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if(!is_numeric($parameterName) && $parameterName === 'global')
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continue;
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if(array_key_exists('global', $parameters))
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$parameter = array_merge($parameter, $parameters['global']);
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if(!is_numeric($parameterName))
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$card .= '<h5>' . $parameterName . '</h5>' . PHP_EOL;
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$card .= self::getForm($bridgeName, $formats, $isActive, $isHttps, $parameterName, $parameter);
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}
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}
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$card .= '<label class="showless" for="showmore-' . $bridgeName . '">Show less</label>';
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$card .= '<p class="maintainer">' . $bridge->getMaintainer() . '</p>';
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$card .= '</section>';
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return $card;
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}
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}
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