<?php
/*
TODO :
- manage SSL detection because if library isn't loaded, some bridge crash !
- factorize the annotation system
- factorize to adapter : Format, Bridge, Cache (actually code is almost the same)
- implement annotation cache for entrance page
- Cache : I think logic must be change as least to avoid to reconvert object from json in FileCache case.
- add namespace to avoid futur problem ?
- see FIXME mentions in the code
- implement header('X-Cached-Version: '.date(DATE_ATOM, filemtime($cachefile)));
*/
date_default_timezone_set('UTC');
error_reporting(0);
//ini_set('display_errors','1'); error_reporting(E_ALL); // For debugging only.
// extensions check
if (!extension_loaded('openssl'))
die('"openssl" extension not loaded. Please check "php.ini"');
// FIXME : beta test UA spoofing, please report any blacklisting by PHP-fopen-unfriendly websites
ini_set('user_agent', 'Mozilla/5.0 (X11; Linux x86_64; rv:30.0) Gecko/20121202 Firefox/30.0 (rss-bridge/0.1; +https://github.com/sebsauvage/rss-bridge)');
// -------
// default whitelist
$whitelist_file = './whitelist.txt';
$whitelist_default = array(
"BandcampBridge",
"CryptomeBridge",
"DansTonChatBridge",
"DuckDuckGoBridge",
"FacebookBridge",
"FlickrExploreBridge",
"GooglePlusPostBridge",
"GoogleSearchBridge",
"IdenticaBridge",
"InstagramBridge",
"OpenClassroomsBridge",
"PinterestBridge",
"ScmbBridge",
"TwitterBridge",
"WikipediaENBridge",
"WikipediaEOBridge",
"WikipediaFRBridge",
"YoutubeBridge");
if (!file_exists($whitelist_file)) {
$whitelist_selection = $whitelist_default;
$whitelist_write = implode("\n", $whitelist_default);
file_put_contents($whitelist_file, $whitelist_write);
}
else {
$whitelist_selection = explode("\n", file_get_contents($whitelist_file));
array_pop($whitelist_selection);
}
// whitelist control function
function BridgeWhitelist( $whitelist, $name ) {
if(in_array("$name", $whitelist) or in_array("$name.php", $whitelist))
return TRUE;
else
return FALSE;
}
try{
require_once __DIR__ . '/lib/RssBridge.php';
Bridge::setDir(__DIR__ . '/bridges/');
Format::setDir(__DIR__ . '/formats/');
Cache::setDir(__DIR__ . '/caches/');
if( isset($_REQUEST) && isset($_REQUEST['action']) ){
switch($_REQUEST['action']){
case 'display':
if( isset($_REQUEST['bridge']) ){
unset($_REQUEST['action']);
$bridge = $_REQUEST['bridge'];
unset($_REQUEST['bridge']);
$format = $_REQUEST['format'];
unset($_REQUEST['format']);
// whitelist control
if(!BridgeWhitelist($whitelist_selection, $bridge)) {
throw new \HttpException('This bridge is not whitelisted', 401);
die;
}
$cache = Cache::create('FileCache');
// Data retrieval
$bridge = Bridge::create($bridge);
if(isset($_REQUEST["disable_cache"])) {
} else {
$bridge->setCache($cache); // just add disable cache to your query to disable caching
}
$bridge->setDatas($_REQUEST);
$bridge->loadMetadatas();
// Data transformation
try {
$format = Format::create($format);
$format
->setDatas($bridge->getDatas())
->setExtraInfos(array(
'name' => $bridge->getName(),
'uri' => $bridge->getURI(),
))
->display();
} catch(Exception $e) {
echo "The brige has crashed. You should report this to the bridges maintainer";
}
die;
}
break;
}
}
}
catch(HttpException $e){
header('HTTP/1.1 ' . $e->getCode() . ' ' . Http::getMessageForCode($e->getCode()));
header('Content-Type: text/plain');
die($e->getMessage());
}
catch(\Exception $e){
die($e->getMessage());
}
function getHelperButtonFormat($value, $name){
return '<button type="submit" name="format" value="' . $value . '">' . $name . '</button>';
}
function getHelperButtonsFormat($formats){
$buttons = '';
foreach( $formats as $name => $infos )
{
if ( isset($infos['name']) )
{
$buttons .= getHelperButtonFormat($name, $infos['name']) . PHP_EOL;
}
}
return $buttons;
}
function displayBridgeCard($bridgeName, $formats, $isActive = true)
{
$bridgeElement = Bridge::create($bridgeName);
if($bridgeElement == false) {
return "";
}
$bridgeElement->loadMetadatas();
$name = '<a href="'.$bridgeElement->uri.'">'.$bridgeElement->name.'</a>';
$description = $bridgeElement->description;
$card = <<<CARD
<section id="bridge-{$bridgeName}" data-ref="{$bridgeName}">
<h2>{$name}</h2>
<p class="description">
{$description}
</p>
CARD;
// If we don't have any parameter for the bridge, we print a generic form to load it.
if(count($bridgeElement->parameters) == 0) {
$card .= '<form method="POST" action="?">
<input type="hidden" name="action" value="display" />
<input type="hidden" name="bridge" value="' . $bridgeName . '" />' . PHP_EOL;
if ($isActive)
{
$card .= getHelperButtonsFormat($formats);
}
else
{
$card .= '<span style="font-weight: bold;">Inactive</span>';
}
$card .= '</form>' . PHP_EOL;
}
foreach($bridgeElement->parameters as $parameterName => $parameter)
{
$card .= '<ol class="list-use">' . PHP_EOL;
$card .= '<h5>'.$parameterName.'</h5>' . PHP_EOL;
$card .= '<form method="POST" action="?">
<input type="hidden" name="action" value="display" />
<input type="hidden" name="bridge" value="' . $bridgeName . '" />' . PHP_EOL;
$parameter = json_decode($parameter, true);
foreach($parameter as $inputEntry) {
$idArg = 'arg-' . $bridgeName . '-' . $parameterName . '-' . $inputEntry['identifier'];
$card .= '<label for="' .$idArg. '">' .$inputEntry['name']. ' : </label>' . PHP_EOL;
if(!isset($inputEntry['type']) || $inputEntry['type'] == 'text') {
$card .= '<input id="' . $idArg . '" type="text" value="" placeholder="' . $inputEntry['exampleValue'] . '" name="' . $inputEntry['identifier'] . '" /><br />' . PHP_EOL;
} else if($inputEntry['type'] == 'number') {
$card .= '<input id="' . $idArg . '" type="number" value="" placeholder="' . $inputEntry['exampleValue'] . '" name="' . $inputEntry['identifier'] . '" /><br />' . PHP_EOL;
} else if($inputEntry['type'] == 'list') {
$card .= '<select id="' . $idArg . '" name="' . $inputEntry['name'] . '" >';
foreach($inputEntry['values'] as $listValues) {
$card .= "<option value='" . $listValues['value'] . "'>" . $listValues['name'] . "</option>";
}
$card .= '</select><br >';
} else if($inputEntry['type'] == 'checkbox') {
$card .= '<input id="' . $idArg . '" type="checkbox" name="' . $inputEntry['identifier'] . '" /><br />' . PHP_EOL;
}
}
if ($isActive)
{
$card .= getHelperButtonsFormat($formats);
}
else
{
$card .= '<span style="font-weight: bold;">Inactive</span>';
}
$card .= '</form>' . PHP_EOL;
}
$card .= '<span class="maintainer">'.$bridgeElement->maintainer.'</span>';
$card .= '</section>';
return $card;
}
$formats = Format::searchInformation();
?>
<!DOCTYPE html>
<html lang="en">
<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="css/style.css" rel="stylesheet">
<!--[if IE]>
<script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
</head>
<body>
<header>
<h1>RSS-Bridge</h1>
<h2>·Reconnecting the Web·</h2>
</header>
<?php
$activeFoundBridgeCount = 0;
$showInactive = isset($_REQUEST['show_inactive']) && $_REQUEST['show_inactive'] == 1;
$inactiveBridges = '';
foreach(Bridge::listBridges() as $bridgeName)
{
if(BridgeWhitelist($whitelist_selection, $bridgeName))
{
echo displayBridgeCard($bridgeName, $formats);
$activeFoundBridgeCount++;
}
elseif ($showInactive)
{
// inactive bridges
$inactiveBridges .= displayBridgeCard($bridgeName, $formats, false) . PHP_EOL;
}
}
echo '<hr />' . $inactiveBridges;
?>
<footer>
<?= $activeFoundBridgeCount; ?>/<?= count($whitelist_selection) ?> active bridges (<a href="?show_inactive=1">Show inactive</a>)<br />
<a href="https://github.com/sebsauvage/rss-bridge">RSS-Bridge alpha 0.2 ~ Public Domain</a>
</footer>
</body>
</html>