6 files changed, 86 insertions(+), 8 deletions(-)

A .gitignore
M src/Finder.php
A src/finders/HackerNews.php
M src/finders/Html.php
A src/finders/Instagram.php
M src/finders/Telegram.php

@@ 0,0 1,1 @@
+composer.lock

@@ 11,7 11,7 @@ abstract class Finder
     public const INDEX = 50;
 
     public const NAME = 'Generic name';
-    public const DESCRIPTION = 'Generic description';
+    public const DESCRIPTION = '';
 
     public function findByUrl(Url $url): array
     {

@@ 0,0 1,27 @@
+<?php
+declare(strict_types=1);
+
+namespace Thirdplace;
+
+/**
+ * https://hnrss.github.io/
+ */
+final class HackerNews extends Finder
+{
+    public const NAME = 'HackerNews';
+
+    public function findByUrl(Url $url): array
+    {
+        if (preg_match('#^https?://news\.ycombinator\.com/?$#', (string) $url)) {
+            return [$this->finding('https://hnrss.org/frontpage')];
+        }
+        if (preg_match('#^https?://news\.ycombinator\.com/newest$#', (string) $url)) {
+            return [$this->finding('https://hnrss.org/newest')];
+        }
+        if (preg_match('#^https?://news\.ycombinator\.com/item\?id=(\d+)$#', (string) $url, $m)) {
+            return [$this->finding(sprintf('https://hnrss.org/item?id=%s', $m[1]))];
+        }
+
+        return [];
+    }
+}<
\ No newline at end of file

@@ 50,18 50,36 @@ final class Html extends Finder
             $title = strtolower(trim($anchor->getAttribute('title')));
             $nodeValue = strtolower(trim($anchor->nodeValue));
 
-            // todo: use php8 shim for str_ends_with()
-
             if (array_filter(['rss', 'feed', 'atom', 'rss feed'], fn($s) => $nodeValue === $s)
                 || array_filter(['rss', 'feed', 'atom', 'atom feed'], fn($s) => $s === $title)
                 || substr($href, -strlen('.rss')) === '.rss'
                 || substr($href, -strlen('.xml')) === '.xml'
                 || substr($href, -strlen('.atom')) === '.atom'
                 || substr($href, -strlen('/rss')) === '/rss'
-                //|| strpos($href, 'feed:') === 0 test this one
-                || preg_match('#^https?://feeds\.feedburner\.com#', $href)
             ) {
-                $result[(string) $url->resolve($href)] = $this->finding($url->resolve($href));
+                // many false positives here
+                try {
+                    $result[(string)$url->resolve($href)] = $this->finding($url->resolve($href));
+                } catch (UrlException $e) {
+                    // pass
+                }
+            }
+
+            // todo: use php8 shim for str_ends_with()
+
+            if (preg_match('#^https?://feeds\.feedblitz\.com/#', $href)) {
+                // Works without &x=1 too when not using a browser
+                $result[$href] = $this->finding(sprintf('%s&x=1', $href));
+            }
+            if (preg_match('#^https?://feeds\.feedburner\.com/#', $href)) {
+                $result[$href] = $this->finding(rtrim($href, '/feed'));
+            }
+            if (preg_match('#^https?://www\.feedio.co/@#', $href)) {
+                $result[$href] = $this->finding(sprintf('%s/feed', $href));
+            }
+            if (preg_match('#^feed:#', $href)) {
+                // todo: fix
+                //$result[$href] = $this->finding($href);
             }
         }
         return $result;

@@ 0,0 1,32 @@
+<?php
+declare(strict_types=1);
+
+namespace Thirdplace;
+
+final class Instagram extends Finder
+{
+    public const NAME = 'Instagram';
+
+    private array $providers;
+
+    // todo: inject providers
+    public function __construct(array $providers = [])
+    {
+        $this->providers = [
+            'https://bibliogram.pussthecat.org/u/%s/rss.xml',
+            'https://bibliogram.1d4.us/u/%s/rss.xml',
+            'https://bib.actionsack.com/u/%s/rss.xml',
+        ];
+    }
+
+    public function findByUrl(Url $url): array
+    {
+        $provider = $this->providers[array_rand($this->providers)];
+
+        if (preg_match('#^https?://(?:www\.)?instagram\.com/(\w+)#', (string) $url, $m)) {
+            return [$this->finding(sprintf($provider, $m[1]))];
+        }
+        return [];
+    }
+
+}<
\ No newline at end of file

@@ 21,8 21,8 @@ final class Telegram extends Finder
         if ($providers === []) {
             return [];
         }
-        if (preg_match('#^https?://t\.me/(\w+)#', (string) $url, $m)) {
-            // todo: might not be a public channel
+        if (preg_match('#^https?://t\.me/(?:s/)?(\w+)#', (string) $url, $m)) {
+            // Might not be a public channel
             return [
                 $this->finding(sprintf($providers[array_rand($providers)], $m[1])),
             ];