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Fixed favicons not loading

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This commit is contained in:
Julian Prieber 2023-07-10 18:35:20 +02:00
parent 4e6381056e
commit 4aa5a86a2b
1 changed files with 136 additions and 64 deletions
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200
resources/views/components/favicon.blade.php
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@ -1,87 +1,159 @@
<?php use App\Models\Link; ?>
<?php
function getFavIcon($id) {
$link = Link::find($id);
$url = $link->link;
use App\Models\Link;
$html = false;
$context = stream_context_create();
function getFaviconURL($url)
{
$ch = curl_init($url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HEADER, true);
curl_setopt($ch, CURLOPT_NOBODY, true);
curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.212 Safari/537.36');
curl_setopt($ch, CURLOPT_TIMEOUT, 3);
$response = curl_exec($ch);
// Set timeout to 3 seconds
stream_context_set_option($context, 'http', 'timeout', 3);
// Set custom User-Agent header
$userAgent = 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/93.0.4577.63 Safari/537.36';
stream_context_set_option($context, 'http', 'header', "User-Agent: $userAgent\r\n");
// Attempt to fetch HTML content with timeout
if (function_exists('curl_version')) {
$curlHandle = curl_init($url);
curl_setopt($curlHandle, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curlHandle, CURLOPT_TIMEOUT, 3);
curl_setopt($curlHandle, CURLOPT_USERAGENT, $userAgent);
$html = curl_exec($curlHandle);
curl_close($curlHandle);
} else {
$html = @file_get_contents($url, false, $context);
// Check if cURL request was successful
if ($response === false) {
return null;
}
$dom = new DOMDocument();
if ($html !== false) {
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
curl_close($ch);
// Check if the URL is redirected
if ($httpCode == 301 || $httpCode == 302) {
$redirectUrl = getRedirectUrlFromHeaders($response);
if ($redirectUrl) {
return getFaviconURL($redirectUrl); // Recursively call getFavicon with the redirected URL
}
}
// Try extracting favicon using DOMDocument
try {
@$dom->loadHTML($html);
} catch (Throwable $e) {}
$dom = new DOMDocument();
$dom->strictErrorChecking = false;
@$dom->loadHTMLFile($url);
if ($dom) {
$domxml = simplexml_import_dom($dom);
// Check for the historical rel="shortcut icon"
if ($domxml->xpath('//link[@rel="shortcut icon"]')) {
$path = $domxml->xpath('//link[@rel="shortcut icon"]');
$faviconURL = getAbsoluteUrl($url, $path[0]['href']);
return $faviconURL;
}
// Check for the HTML5 rel="icon"
elseif ($domxml->xpath('//link[@rel="icon"]')) {
$path = $domxml->xpath('//link[@rel="icon"]');
$faviconURL = getAbsoluteUrl($url, $path[0]['href']);
return $faviconURL;
}
}
} catch (Exception $e) {
// Silently fail and continue to the next method
}
// Check directly for favicon.ico or favicon.png
$parse = parse_url($url);
$favicon_headers = @get_headers("http://" . $parse['host'] . "/favicon.ico");
if ($favicon_headers && $favicon_headers[0] != 'HTTP/1.1 404 Not Found') {
$faviconURL = "http://" . $parse['host'] . "/favicon.ico";
return $faviconURL;
}
$favicon_headers = @get_headers("http://" . $parse['host'] . "/favicon.png");
if ($favicon_headers && $favicon_headers[0] != 'HTTP/1.1 404 Not Found') {
$faviconURL = "http://" . $parse['host'] . "/favicon.png";
return $faviconURL;
}
// Fallback to regex extraction
$faviconURL = extractFaviconUrlWithRegex($response);
if ($faviconURL) {
$faviconURL = getAbsoluteUrl($url, $faviconURL);
}
return $faviconURL;
}
function getRedirectUrlFromHeaders($headers)
{
if (preg_match('/^Location:\s+(.*)$/mi', $headers, $matches)) {
return trim($matches[1]);
}
return null;
}
$xpath = new DOMXPath($dom);
$faviconUrl = '';
// Search for <link> tags with rel="icon" or rel="shortcut icon"
$linkTags = $xpath->query("//link[contains(@rel, 'icon') or contains(@rel, 'shortcut icon')]");
foreach ($linkTags as $tag) {
$faviconUrl = $tag->getAttribute('href');
if (strpos($faviconUrl, 'http') !== 0) {
$faviconUrl = $url . '/' . ltrim($faviconUrl, '/');
}
break; // Stop after the first matching <link> tag
function extractFaviconUrlWithRegex($html)
{
// Check for the historical rel="shortcut icon"
if (preg_match('/<link[^>]+rel=["\']shortcut icon["\'][^>]+href=["\']([^"\']+)["\']/', $html, $matches)) {
$faviconURL = $matches[1];
return $faviconURL;
}
$fallbackFavicon = 'assets/linkstack/icons/website.svg';
if (empty($faviconUrl)) {
$faviconUrl = $fallbackFavicon;
// Check for the HTML5 rel="icon"
if (preg_match('/<link[^>]+rel=["\']icon["\'][^>]+href=["\']([^"\']+)["\']/', $html, $matches)) {
$faviconURL = $matches[1];
return $faviconURL;
}
$extension = pathinfo($faviconUrl, PATHINFO_EXTENSION);
$filename = $id . "." . $extension;
$filepath = base_path("assets/favicon/icons") . "/" . $filename;
return null;
}
function getAbsoluteUrl($baseUrl, $relativeUrl)
{
$parsedUrl = parse_url($baseUrl);
$scheme = isset($parsedUrl['scheme']) ? $parsedUrl['scheme'] : 'http';
$host = isset($parsedUrl['host']) ? $parsedUrl['host'] : '';
$path = isset($parsedUrl['path']) ? $parsedUrl['path'] : '';
$basePath = "$scheme://$host$path";
if (strpos($relativeUrl, 'http') === 0) {
return $relativeUrl; // Already an absolute URL
} elseif (strpos($relativeUrl, '/') === 0) {
return "$scheme://$host$relativeUrl"; // Root-relative URL
} else {
return "$basePath/$relativeUrl"; // Path-relative URL
}
}
function getFavIcon($id)
{
try{
$link = Link::find($id);
$page = $link->link;
$url = getFaviconURL($page);
$fileExtension = pathinfo($url, PATHINFO_EXTENSION);
$filename = $id . '.' . $fileExtension;
$filepath = base_path('assets/favicon/icons') . '/' . $filename;
if (!file_exists($filepath)) {
if ($faviconUrl !== $fallbackFavicon) {
if (function_exists('curl_version')) {
$curlHandle = curl_init($faviconUrl);
curl_setopt($curlHandle, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curlHandle, CURLOPT_TIMEOUT, 3);
curl_setopt($curlHandle, CURLOPT_USERAGENT, $userAgent);
$faviconData = curl_exec($curlHandle);
curl_close($curlHandle);
if (function_exists('curl_version')) {
$curlHandle = curl_init($url);
curl_setopt($curlHandle, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curlHandle, CURLOPT_TIMEOUT, 3);
$faviconData = curl_exec($curlHandle);
curl_close($curlHandle);
if ($faviconData !== false) {
file_put_contents($filepath, $faviconData);
}
} else {
file_put_contents($filepath, file_get_contents($faviconUrl, false, $context));
if ($faviconData !== false) {
file_put_contents($filepath, $faviconData);
}
} else {
copy($fallbackFavicon, $filepath);
file_put_contents($filepath, file_get_contents($url));
}
}
return $filename;
return url('assets/favicon/icons/' . $id . '.' . $fileExtension);
}catch(Exception $e){
// Handle the exception by copying the default SVG favicon
$defaultIcon = base_path('assets/linkstack/icons/website.svg');
$filename = $id . '.svg';
$filepath = base_path('assets/favicon/icons') . '/' . $filename;
copy($defaultIcon, $filepath);
return url('assets/favicon/icons/' . $filename);
}
}
?>