Rss-Bridge/index.php

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<?php
/*
TODO :
- manage SSL detection because if library isn't loaded, some bridge crash !
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- 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)));
*/
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date_default_timezone_set('UTC');
error_reporting(0);
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//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"');
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// 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)');
// -------
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// default whitelist
$whitelist_file = './whitelist.txt';
$whitelist_default = array(
"BandcampBridge",
"CryptomeBridge",
"DansTonChatBridge",
"DuckDuckGoBridge",
"FlickrExploreBridge",
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"GooglePlusPostBridge",
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"GoogleSearchBridge",
"IdenticaBridge",
"InstagramBridge",
"OpenClassroomsBridge",
"PinterestBridge",
"ScmbBridge",
"ThePirateBayBridge",
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"TwitterBridge",
"WikipediaENBridge",
"WikipediaEOBridge",
"WikipediaFRBridge",
"YoutubeBridge");
if (!file_exists($whitelist_file)) {
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$whitelist_selection = $whitelist_default;
$whitelist_write = implode("\n", $whitelist_default);
file_put_contents($whitelist_file, $whitelist_write);
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}
else {
$whitelist_selection = explode("\n", file_get_contents($whitelist_file));
}
// whitelist control function
function BridgeWhitelist( $whitelist, $name ) {
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if(in_array("$name", $whitelist) or in_array("$name.php", $whitelist))
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return TRUE;
else
return FALSE;
}
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try{
require_once __DIR__ . '/lib/RssBridge.php';
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Bridge::setDir(__DIR__ . '/bridges/');
Format::setDir(__DIR__ . '/formats/');
Cache::setDir(__DIR__ . '/caches/');
if( isset($_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']);
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// whitelist control
if(!BridgeWhitelist($whitelist_selection, $bridge)) {
throw new \HttpException('This bridge is not whitelisted', 401);
die;
}
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$cache = Cache::create('FileCache');
// Data retrieval
$bridge = Bridge::create($bridge);
$bridge
->setCache($cache) // Comment this lign for avoid cache use
->setDatas($_REQUEST);
// Data transformation
$format = Format::create($format);
$format
->setDatas($bridge->getDatas())
->setExtraInfos(array(
'name' => $bridge->getName(),
'uri' => $bridge->getURI(),
))
->display();
die;
}
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break;
}
}
}
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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());
}
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function getHelperButtonFormat($value, $name){
return '<button type="submit" name="format" value="' . $value . '">' . $name . '</button>';
}
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function getHelperButtonsFormat($formats){
$buttons = '';
foreach( $formats as $name => $infos )
{
if ( isset($infos['name']) )
{
$buttons .= getHelperButtonFormat($name, $infos['name']) . PHP_EOL;
}
}
return $buttons;
}
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function displayBridgeCard($bridgeReference, $bridgeInformations, $formats, $isActive = true)
{
$name = isset($bridgeInformations['homepage']) ? '<a href="'.$bridgeInformations['homepage'].'">'.$bridgeInformations['name'].'</a>' : $bridgeInformations['name'];
$description = isset($bridgeInformations['description']) ? $bridgeInformations['description'] : 'No description provided';
$card = <<<CARD
<section id="bridge-{$bridgeReference}" data-ref="{$bridgeReference}">
<h2>{$name}</h2>
<p class="description">
{$description}
</p>
CARD;
if( isset($bridgeInformations['use']) && count($bridgeInformations['use']) > 0 )
{
$card .= '<ol class="list-use">' . PHP_EOL;
foreach($bridgeInformations['use'] as $anUseNum => $anUse)
{
$card .= '<li data-use="' . $anUseNum . '">' . PHP_EOL;
$card .= '<form method="GET" action="?">
<input type="hidden" name="action" value="display" />
<input type="hidden" name="bridge" value="' . $bridgeReference . '" />' . PHP_EOL;
foreach($anUse as $argName => $argDescription)
{
$idArg = 'arg-' . $bridgeReference . '-' . $anUseNum . '-' . $argName;
$card .= '<input id="' . $idArg . '" type="text" value="" placeholder="' . $argDescription . '" name="' . $argName . '" />' . PHP_EOL;
}
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$card .= '<br />';
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if ($isActive)
{
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$card .= getHelperButtonsFormat($formats);
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}
else
{
$card .= '<span style="font-weight: bold;">Inactive</span>';
}
$card .= '</form></li>' . PHP_EOL;
}
$card .= '</ol>' . PHP_EOL;
}
else
{
$card .= '<form method="GET" action="?">
<input type="hidden" name="action" value="display" />
<input type="hidden" name="bridge" value="' . $bridgeReference . '" />' . PHP_EOL;
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if ($isActive)
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{
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$card .= getHelperButtonsFormat($formats);
}
else
{
$card .= '<span style="font-weight: bold;">Inactive</span>';
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}
$card .= '</form>' . PHP_EOL;
}
$card .= isset($bridgeInformations['maintainer']) ? '<span class="maintainer">'.$bridgeInformations['maintainer'].'</span>' : '';
$card .= '</section>';
return $card;
}
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$bridges = Bridge::searchInformation();
$formats = Format::searchInformation();
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<meta name="description" content="Rss-bridge" />
<title>RSS-Bridge</title>
<link href="css/style.css" rel="stylesheet">
<!--[if IE]>
<script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
</head>
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<body>
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<header>
<h1>RSS-Bridge</h1>
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<h2>·Reconnecting the Web·</h2>
</header>
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<?php
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$activeFoundBridgeCount = 0;
$showInactive = isset($_REQUEST['show_inactive']) && $_REQUEST['show_inactive'] == 1;
$inactiveBridges = '';
foreach($bridges as $bridgeReference => $bridgeInformations)
{
if(BridgeWhitelist($whitelist_selection, $bridgeReference))
{
echo displayBridgeCard($bridgeReference, $bridgeInformations, $formats);
$activeFoundBridgeCount++;
}
elseif ($showInactive)
{
// inactive bridges
$inactiveBridges .= displayBridgeCard($bridgeReference, $bridgeInformations, $formats, false) . PHP_EOL;
}
}
echo '<hr />' . $inactiveBridges;
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?>
<footer>
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<?= $activeFoundBridgeCount; ?>/<?= count($bridges) ?> active bridges (<a href="?show_inactive=1">Show inactive</a>)<br />
<a href="https://github.com/sebsauvage/rss-bridge">RSS-Bridge alpha 0.1 ~ Public Domain</a>
</footer>
</body>
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</html>