From 79dfe59289b101498789eff66178b80a087b3aec Mon Sep 17 00:00:00 2001
From: Julian Prieber <julian.prieber@gmail.com>
Date: Fri, 10 May 2024 10:55:17 +0200
Subject: [PATCH] Use Google API to fetch favicons

Now supporting captchas
---
 resources/views/components/favicon.blade.php | 173 +------------------
 1 file changed, 9 insertions(+), 164 deletions(-)

diff --git a/resources/views/components/favicon.blade.php b/resources/views/components/favicon.blade.php
index bd09418..2993b04 100644
--- a/resources/views/components/favicon.blade.php
+++ b/resources/views/components/favicon.blade.php
@@ -1,178 +1,23 @@
 <?php
 use App\Models\Link;
 
-if (!function_exists('getFaviconURL')) {
-    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);
-
-        // Check if cURL request was successful
-        if ($response === false) {
-            return null;
-        }
-
-        $httpCode = curl_getinfo($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 = new DOMDocument();
-            $dom->strictErrorChecking = false;
-            @$dom->loadHTMLFile($url);
-            if ($dom) {
-                $faviconURL = extractFaviconUrlFromDOM($dom);
-                if ($faviconURL) {
-                    return getAbsoluteUrl($url, $faviconURL);
-                }
-            }
-        } catch (Exception $e) {
-            // Silently fail and continue to the next method
-        }
-
-        // Check directly for favicon.ico or favicon.png
-        $parse = parse_url($url);
-        $faviconURL = getAbsoluteUrl($url, "/favicon.ico");
-        if (checkURLExists($faviconURL)) {
-            return $faviconURL;
-        }
-
-        $faviconURL = getAbsoluteUrl($url, "/favicon.png");
-        if (checkURLExists($faviconURL)) {
-            return $faviconURL;
-        }
-
-        // Fallback to regex extraction
-        $faviconURL = extractFaviconUrlWithRegex($response);
-        if ($faviconURL) {
-            $faviconURL = getAbsoluteUrl($url, $faviconURL);
-        }
-        return $faviconURL;
-    }
-}
-
-if (!function_exists('getRedirectUrlFromHeaders')) {
-    function getRedirectUrlFromHeaders($headers)
-    {
-        if (preg_match('/^Location:\s+(.*)$/mi', $headers, $matches)) {
-            return trim($matches[1]);
-        }
-        return null;
-    }
-}
-
-if (!function_exists('extractFaviconUrlFromDOM')) {
-    function extractFaviconUrlFromDOM($dom)
-    {
-        $xpath = new DOMXPath($dom);
-
-        // Check for the historical rel="shortcut icon"
-        $shortcutIcon = $xpath->query('//link[@rel="shortcut icon"]');
-        if ($shortcutIcon->length > 0) {
-            $path = $shortcutIcon->item(0)->getAttribute('href');
-            return $path;
-        }
-
-        // Check for the HTML5 rel="icon"
-        $icon = $xpath->query('//link[@rel="icon"]');
-        if ($icon->length > 0) {
-            $path = $icon->item(0)->getAttribute('href');
-            return $path;
-        }
-
-        return null;
-    }
-}
-
-if (!function_exists('checkURLExists')) {
-    function checkURLExists($url)
-    {
-        $headers = @get_headers($url);
-        return ($headers && strpos($headers[0], '200') !== false);
-    }
-}
-
-if (!function_exists('extractFaviconUrlWithRegex')) {
-    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;
-        }
-
-        // Check for the HTML5 rel="icon"
-        if (preg_match('/<link[^>]+rel=["\']icon["\'][^>]+href=["\']([^"\']+)["\']/', $html, $matches)) {
-            $faviconURL = $matches[1];
-            return $faviconURL;
-        }
-
-        return null;
-    }
-}
-
-if (!function_exists('getAbsoluteUrl')) {
-    function getAbsoluteUrl($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/$relativeUrl"; // Path-relative URL
-        }
-    }
-}
-
 if (!function_exists('getFavIcon')) {
     function getFavIcon($id)
     {
         try {
             $link = Link::find($id);
-            $page = $link->link;
+            $url = $link->link;
 
-            $url = getFaviconURL($page);
+            // Use Google's Favicon API
+            $faviconUrl = 'http://www.google.com/s2/favicons?sz=256&domain=' . $url;
 
-            $fileExtension = pathinfo($url, PATHINFO_EXTENSION);
-            $filename = $id . '.' . $fileExtension;
+            // Get the favicon and save it to the desired location
+            $favicon = file_get_contents($faviconUrl);
+            $filename = $id . '.png';
             $filepath = base_path('assets/favicon/icons') . '/' . $filename;
+            file_put_contents($filepath, $favicon);
 
-            if (!file_exists($filepath)) {
-                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($url));
-                }
-            }
-
-            return url('assets/favicon/icons/' . $id . '.' . $fileExtension);
+            return url('assets/favicon/icons/' . $filename);
         } catch (Exception $e) {
             // Handle the exception by copying the default SVG favicon
             $defaultIcon = base_path('assets/linkstack/icons/website.svg');
@@ -183,4 +28,4 @@ if (!function_exists('getFavIcon')) {
             return url('assets/favicon/icons/' . $filename);
         }
     }
-}
+}
\ No newline at end of file