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<?php
/**
* This file is part of RSS-Bridge, a PHP project capable of generating RSS and
* Atom feeds for websites that don't have one.
*
* For the full license information, please view the UNLICENSE file distributed
* with this source code.
*
* @package Core
* @license http://unlicense.org/ UNLICENSE
* @link https://github.com/rss-bridge/rss-bridge
*/
/**
* A generator class for the home page of RSS-Bridge.
*
* This class generates the HTML content for displaying all bridges on the home
* page of RSS-Bridge.
*
* @todo Return error if a caller creates an object of this class.
*/
final class BridgeList {
/**
* Get the document head
*
* @return string The document head
*/
private static function getHead() {
return <<<EOD
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="description" content="RSS-Bridge" />
<title>RSS-Bridge</title>
<link href="static/style.css" rel="stylesheet">
<script src="static/search.js"></script>
<script src="static/select.js"></script>
<noscript>
<style>
.searchbar {
display: none;
}
</style>
</noscript>
</head>
EOD;
}
/**
* Get the document body for all bridge cards
*
* @param bool $showInactive Inactive bridges are visible on the home page if
* enabled.
* @param int $totalBridges (ref) Returns the total number of bridges.
* @param int $totalActiveBridges (ref) Returns the number of active bridges.
* @return string The document body for all bridge cards.
*/
private static function getBridges($showInactive, &$totalBridges, &$totalActiveBridges) {
$body = '';
$totalActiveBridges = 0;
$inactiveBridges = '';
$bridgeList = Bridge::getBridgeNames();
$formats = Format::getFormatNames();
$totalBridges = count($bridgeList);
foreach($bridgeList as $bridgeName) {
if(Bridge::isWhitelisted($bridgeName)) {
$body .= BridgeCard::displayBridgeCard($bridgeName, $formats);
$totalActiveBridges++;
} elseif($showInactive) {
// inactive bridges
$inactiveBridges .= BridgeCard::displayBridgeCard($bridgeName, $formats, false) . PHP_EOL;
}
}
$body .= $inactiveBridges;
return $body;
}
/**
* Get the document header
*
* @return string The document header
*/
private static function getHeader() {
$warning = '';
if(Debug::isEnabled()) {
if(!Debug::isSecure()) {
$warning .= <<<EOD
<section class="critical-warning">Warning : Debug mode is active from any location,
make sure only you can access RSS-Bridge.</section>
EOD;
} else {
$warning .= <<<EOD
<section class="warning">Warning : Debug mode is active from your IP address,
your requests will bypass the cache.</section>
EOD;
}
}
return <<<EOD
<header>
<h1>RSS-Bridge</h1>
<h2>Reconnecting the Web</h2>
{$warning}
</header>
EOD;
}
/**
* Get the searchbar
*
* @return string The searchbar
*/
private static function getSearchbar() {
$query = filter_input(INPUT_GET, 'q');
return <<<EOD
<section class="searchbar">
<h3>Search</h3>
<input type="text" name="searchfield"
id="searchfield" placeholder="Enter the bridge you want to search for"
onchange="search()" onkeyup="search()" value="{$query}">
</section>
EOD;
}
/**
* Get the document footer
*
* @param int $totalBridges The total number of bridges, shown in the footer
* @param int $totalActiveBridges The total number of active bridges, shown
* in the footer.
* @param bool $showInactive Sets the 'Show active'/'Show inactive' text in
* the footer.
* @return string The document footer
*/
private static function getFooter($totalBridges, $totalActiveBridges, $showInactive) {
$version = Configuration::getVersion();
$email = Configuration::getConfig('admin', 'email');
$admininfo = '';
if (!empty($email)) {
$admininfo = <<<EOD
<br />
<span>
You may email the administrator of this RSS-Bridge instance
at <a href="mailto:{$email}">{$email}</a>
</span>
EOD;
}
$inactive = '';
if($totalActiveBridges !== $totalBridges) {
if(!$showInactive) {
$inactive = '<a href="?show_inactive=1"><button class="small">Show inactive bridges</button></a><br>';
} else {
$inactive = '<a href="?show_inactive=0"><button class="small">Hide inactive bridges</button></a><br>';
}
}
return <<<EOD
<section class="footer">
<a href="https://github.com/rss-bridge/rss-bridge">RSS-Bridge ~ Public Domain</a><br>
<p class="version">{$version}</p>
{$totalActiveBridges}/{$totalBridges} active bridges.<br>
{$inactive}
{$admininfo}
</section>
EOD;
}
/**
* Create the entire home page
*
* @param bool $showInactive Inactive bridges are displayed on the home page,
* if enabled.
* @return string The home page
*/
static function create($showInactive = true) {
$totalBridges = 0;
$totalActiveBridges = 0;
return '<!DOCTYPE html><html lang="en">'
. BridgeList::getHead()
. '<body onload="search()">'
. BridgeList::getHeader()
. BridgeList::getSearchbar()
. BridgeList::getBridges($showInactive, $totalBridges, $totalActiveBridges)
. BridgeList::getFooter($totalBridges, $totalActiveBridges, $showInactive)
. '</body></html>';
}
}
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