Add myShaarli plugin

This commit is contained in:
Knah Tsaeb 2018-01-04 14:49:09 +01:00
parent aa228207a0
commit e37a7ab9ec
4 changed files with 424 additions and 0 deletions

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<?php
namespace Favicon;
/**
* DataAccess is a wrapper used to read/write data locally or remotly
* Aside from SOLID principles, this wrapper is also useful to mock remote resources in unit tests
* Note: remote access warning are silenced because we don't care if a website is unreachable
**/
class DataAccess {
public function retrieveUrl($url) {
$this->set_context();
return @file_get_contents($url);
}
public function retrieveHeader($url) {
$this->set_context();
return @get_headers($url, TRUE);
}
public function saveCache($file, $data) {
file_put_contents($file, $data);
}
public function readCache($file) {
return file_get_contents($file);
}
private function set_context() {
stream_context_set_default(
array(
'http' => array(
'method' => 'GET',
'timeout' => 10,
'header' => "User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:20.0; Favicon; +https://github.com/ArthurHoaro/favicon) Gecko/20100101 Firefox/32.0\r\n",
)
)
);
}
}

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<?php
namespace Favicon;
class Favicon
{
protected $url = '';
protected $cacheDir;
protected $cacheTimeout;
protected $dataAccess;
public function __construct($args = array())
{
if (isset($args['url'])) {
$this->url = $args['url'];
}
$this->cacheDir = __DIR__ . '/../../resources/cache';
$this->dataAccess = new DataAccess();
}
public function cache($args = array()) {
if (isset($args['dir'])) {
$this->cacheDir = $args['dir'];
}
if (!empty($args['timeout'])) {
$this->cacheTimeout = $args['timeout'];
} else {
$this->cacheTimeout = 0;
}
}
public static function baseUrl($url, $path = false)
{
$return = '';
if (!$url = parse_url($url)) {
return FALSE;
}
// Scheme
$scheme = isset($url['scheme']) ? strtolower($url['scheme']) : null;
if ($scheme != 'http' && $scheme != 'https') {
return FALSE;
}
$return .= "{$scheme}://";
// Username and password
if (isset($url['user'])) {
$return .= $url['user'];
if (isset($url['pass'])) {
$return .= ":{$url['pass']}";
}
$return .= '@';
}
// Hostname
if( !isset($url['host']) ) {
return FALSE;
}
$return .= $url['host'];
// Port
if (isset($url['port'])) {
$return .= ":{$url['port']}";
}
// Path
if( $path && isset($url['path']) ) {
$return .= $url['path'];
}
$return .= '/';
return $return;
}
public function info($url)
{
if(empty($url) || $url === false) {
return false;
}
$max_loop = 5;
// Discover real status by following redirects.
$loop = TRUE;
while ($loop && $max_loop-- > 0) {
$headers = $this->dataAccess->retrieveHeader($url);
$exploded = explode(' ', $headers[0]);
if( !isset($exploded[1]) ) {
return false;
}
list(,$status) = $exploded;
switch ($status) {
case '301':
case '302':
$url = $headers['Location'];
break;
default:
$loop = FALSE;
break;
}
}
return array('status' => $status, 'url' => $url);
}
public function endRedirect($url) {
$out = $this->info($url);
return !empty($out['url']) ? $out['url'] : false;
}
/**
* Find remote (or cached) favicon
* @return favicon URL, false if nothing was found
**/
public function get($url = '')
{
// URLs passed to this method take precedence.
if (!empty($url)) {
$this->url = $url;
}
// Get the base URL without the path for clearer concatenations.
$original = rtrim($this->baseUrl($this->url, true), '/');
$url = rtrim($this->endRedirect($this->baseUrl($this->url, false)), '/');
if(($favicon = $this->checkCache($url)) || ($favicon = $this->getFavicon($url))) {
$base = true;
}
elseif(($favicon = $this->checkCache($original)) || ($favicon = $this->getFavicon($original, false))) {
$base = false;
}
else
return false;
// Save cache if necessary
$cache = $this->cacheDir . '/' . md5($base ? $url : $original);
if ($this->cacheTimeout && !file_exists($cache) || (is_writable($cache) && time() - filemtime($cache) > $this->cacheTimeout)) {
$this->dataAccess->saveCache($cache, $favicon);
}
return $favicon;
}
private function getFavicon($url, $checkDefault = true) {
$favicon = false;
if(empty($url)) {
return false;
}
// Try /favicon.ico first.
if( $checkDefault ) {
$info = $this->info("{$url}/favicon.ico");
if ($info['status'] == '200') {
$favicon = $info['url'];
}
}
// See if it's specified in a link tag in domain url.
if (!$favicon) {
$favicon = $this->getInPage($url);
}
// Make sure the favicon is an absolute URL.
if( $favicon && filter_var($favicon, FILTER_VALIDATE_URL) === false ) {
$favicon = $url . '/' . $favicon;
}
// Sometimes people lie, so check the status.
// And sometimes, it's not even an image. Sneaky bastards!
// If cacheDir isn't writable, that's not our problem
if ($favicon && is_writable($this->cacheDir) && !$this->checkImageMType($favicon)) {
$favicon = false;
}
return $favicon;
}
private function getInPage($url) {
$html = $this->dataAccess->retrieveUrl("{$url}/");
preg_match('!<head.*?>.*</head>!ims', $html, $match);
if(empty($match) || count($match) == 0) {
return false;
}
$head = $match[0];
$dom = new \DOMDocument();
// Use error supression, because the HTML might be too malformed.
if (@$dom->loadHTML($head)) {
$links = $dom->getElementsByTagName('link');
foreach ($links as $link) {
if ($link->hasAttribute('rel') && strtolower($link->getAttribute('rel')) == 'shortcut icon') {
return $link->getAttribute('href');
} elseif ($link->hasAttribute('rel') && strtolower($link->getAttribute('rel')) == 'icon') {
return $link->getAttribute('href');
} elseif ($link->hasAttribute('href') && strpos($link->getAttribute('href'), 'favicon') !== FALSE) {
return $link->getAttribute('href');
}
}
}
return false;
}
private function checkCache($url) {
if ($this->cacheTimeout) {
$cache = $this->cacheDir . '/' . md5($url);
if (file_exists($cache) && is_readable($cache) && (time() - filemtime($cache) < $this->cacheTimeout)) {
return $this->dataAccess->readCache($cache);
}
}
return false;
}
private function checkImageMType($url) {
$tmpFile = $this->cacheDir . '/tmp.ico';
$fileContent = $this->dataAccess->retrieveUrl($url);
$this->dataAccess->saveCache($tmpFile, $fileContent);
$finfo = finfo_open(FILEINFO_MIME_TYPE);
$isImage = strpos(finfo_file($finfo, $tmpFile), 'image') !== false;
finfo_close($finfo);
unlink($tmpFile);
return $isImage;
}
/**
* @return mixed
*/
public function getCacheDir()
{
return $this->cacheDir;
}
/**
* @param mixed $cacheDir
*/
public function setCacheDir($cacheDir)
{
$this->cacheDir = $cacheDir;
}
/**
* @return mixed
*/
public function getCacheTimeout()
{
return $this->cacheTimeout;
}
/**
* @param mixed $cacheTimeout
*/
public function setCacheTimeout($cacheTimeout)
{
$this->cacheTimeout = $cacheTimeout;
}
/**
* @return string
*/
public function getUrl()
{
return $this->url;
}
/**
* @param string $url
*/
public function setUrl($url)
{
$this->url = $url;
}
/**
* @param DataAccess $dataAccess
*/
public function setDataAccess($dataAccess)
{
$this->dataAccess = $dataAccess;
}
}

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description="For each link, add thumbshot image and favicon"
parameters=ExternalThumbshot_URL;

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<?php
/**
* Plugin externalThumbshot
*/
/**
* Init function, return an error if the server is not set.
*
* @param $conf ConfigManager instance.
*
* @return array Eventual error.
*/
function myShaarli_init($conf)
{
if (empty($conf->get('plugins.ExternalThumbshot_URL'))) {
$error = 'myShaarli plugin error: '.
'Please define the "ExternalThumbshot_URL" setting in the plugin administration page.';
return array($error);
}
if ($conf->get('resource.theme') !== 'myShaarli' AND $conf->get('resource.theme') !== 'myShaarli_Columns') {
$error = 'myShaarli plugin: '.
'This plugin need modification of template. Use myShaarli theme for test.';
return array($error);
}
}
/**
* Add externalThumbshot icon to link_plugin when rendering linklist.
*
* @param mixed $data - linklist data.
*
* @return mixed - linklist data with readityourself plugin.
*/
function hook_myShaarli_render_linklist($data,$conf)
{
$thumUrl = $conf->get('plugins.ExternalThumbshot_URL');
if (!isset($thumUrl)) {
return $data;
}
foreach ($data['links'] as &$value) {
$thumb = computeThumbnail($conf, $value['url']);
if(empty($thumb)){
$value['thumbnail'] = '<img src="'.$thumUrl.urlencode($value['url']).'" alt="Thumbnail" width="120" height="90">';
} else {
$value['thumbnail'] = '<img src="'.$thumb['src'].'">';
}
}
return $data;
}
/**
* NOT WORKING
* To poor performance
* Need fix
*/
function returnFavicon($url)
{
$faviconHash = md5($url);
$path = substr($faviconHash, 0, 2).'/'.substr($faviconHash, 2, 2);
$faviconPath = 'cache/'.$path.'/'.$faviconHash.'.ico';
if (file_exists($faviconPath)) {
$content = file_get_contents($faviconPath);
return '<img class="favicon" alt="favicon" src="data:image/ico;base64,'.base64_encode($content).'"/>';
}
if (file_exists('cache/'.$path.'/'.$faviconHash)) {
return;
}
require_once 'plugins/myShaarli/favicon/DataAccess.php';
require_once 'plugins/myShaarli/favicon/Favicon.php';
$favicon = new \Favicon\Favicon();
$favicon->cache(array('dir' => 'cache'));
$urlOfFavicon = $favicon->get($url);
if (!$urlOfFavicon) {
mkdir('cache/'.$path, 0777, true);
touch('cache/'.$path.'/'.$faviconHash);
return;
}
if (!is_dir('cache/'.$path.'/')) {
mkdir('cache/'.$path, 0777, true);
}
$content = file_get_contents($urlOfFavicon);
file_put_contents($faviconPath, $content);
return '<img class="favicon" alt="favicon" src="data:image/ico;base64,'.base64_encode($content).'"/>';
}