Streamline nostr scheme extension

src/Util/CommonMark/Converter.php

@@ -2,7 +2,7 @@
 
 namespace App\Util\CommonMark;
 
-use App\Util\Bech32\Bech32Decoder;
+use App\Service\RedisCacheService;
 use App\Util\CommonMark\ImagesExtension\RawImageLinkExtension;
 use App\Util\CommonMark\NostrSchemeExtension\NostrSchemeExtension;
 use League\CommonMark\Environment\Environment;
@@ -22,11 +22,11 @@ use League\CommonMark\Extension\TableOfContents\TableOfContentsExtension;
 use League\CommonMark\MarkdownConverter;
 use League\CommonMark\Renderer\HtmlDecorator;
 
-class Converter
+readonly class Converter
 {
-    public function __construct(private readonly Bech32Decoder $bech32Decoder)
-    {
-    }
+    public function __construct(
+        private RedisCacheService $redisCacheService
+    ){}
 
     /**
      * @throws CommonMarkException
@@ -64,7 +64,7 @@ class Converter
         $environment->addExtension(new TableExtension());
         $environment->addExtension(new StrikethroughExtension());
         // create a custom extension, that handles nostr mentions
-        $environment->addExtension(new NostrSchemeExtension($this->bech32Decoder));
+        $environment->addExtension(new NostrSchemeExtension($this->redisCacheService));
         $environment->addExtension(new SmartPunctExtension());
         $environment->addExtension(new EmbedExtension());
         $environment->addRenderer(Embed::class, new HtmlDecorator(new EmbedRenderer(), 'div', ['class' => 'embedded-content']));

src/Util/CommonMark/NostrSchemeExtension/NostrEventRenderer.php

@@ -18,19 +18,26 @@ class NostrEventRenderer implements NodeRendererInterface
 
         if ($node->getType() === 'nevent') {
             // Construct the local link URL from the special part
-            $url = '/e/' .  $node->getSpecial();
+            $url = '/e/' . $node->getSpecial();
         } else if ($node->getType() === 'naddr') {
             // dump($node);
             // Construct the local link URL from the special part
-            $url = '/' .  $node->getSpecial();
+            $url = '/article/' .  $node->getSpecial();
         }
 
         if (isset($url)) {
             // Create the anchor element
-            return new HtmlElement('a', ['href' => $url], '@' . $node->getSpecial());
+            return new HtmlElement('a', ['href' => $url], '@' . $this->labelFromKey($node->getSpecial()));
         }
 
         return false;
 
     }
+
+    private function labelFromKey($key): string
+    {
+        $start = substr($key, 0, 8);
+        $end = substr($key, -8);
+        return $start . '…' . $end;
+    }
 }

src/Util/CommonMark/NostrSchemeExtension/NostrMentionParser.php

@@ -2,6 +2,7 @@
 
 namespace App\Util\CommonMark\NostrSchemeExtension;
 
+use App\Service\RedisCacheService;
 use League\CommonMark\Parser\Inline\InlineParserInterface;
 use League\CommonMark\Parser\Inline\InlineParserMatch;
 use League\CommonMark\Parser\InlineParserContext;
@@ -13,8 +14,11 @@ use swentel\nostr\Key\Key;
  * but have npub1XXXX instead of a URL
  * @package App\Util\CommonMark
  */
-class NostrMentionParser implements InlineParserInterface
+readonly class NostrMentionParser implements InlineParserInterface
 {
+    public function __construct(
+        private RedisCacheService $redisCacheService
+    ){}
 
     public function getMatchDefinition(): InlineParserMatch
     {
@@ -34,13 +38,14 @@ class NostrMentionParser implements InlineParserInterface
 
         // Extract "npub" part from fullMatch
         $npubLink = substr($fullMatch, strpos($fullMatch, 'npub1'), -1);  // e.g., "npubXXXX"
-        $npubPart = substr($npubLink, 5);  // Extract the part after "npub1", i.e., "XXXX"
 
-        $key = new Key();
-        $hex = $key->convertToHex($npubLink);
+        if (empty($label)) {
+            $metadata = $this->redisCacheService->getMetadata($npubLink);
+            $label = $metadata->display_name ?? $metadata->name;
+        }
 
         // Create a new inline node for the custom link
-        $inlineContext->getContainer()->appendChild(new NostrMentionLink($label, $hex));
+        $inlineContext->getContainer()->appendChild(new NostrMentionLink($label, $npubLink));
 
         // Advance the cursor to consume the matched part (important!)
         $cursor->advanceBy(strlen($fullMatch));

src/Util/CommonMark/NostrSchemeExtension/NostrRawNpubParser.php

@@ -2,19 +2,19 @@
 
 namespace App\Util\CommonMark\NostrSchemeExtension;
 
+use App\Service\RedisCacheService;
 use League\CommonMark\Parser\Inline\InlineParserInterface;
 use League\CommonMark\Parser\Inline\InlineParserMatch;
 use League\CommonMark\Parser\InlineParserContext;
-use swentel\nostr\Key\Key;
 
 /**
  * Class NostrRawNpubParser
  * Looks for raw nostr mentions formatted as npub1XXXX
  */
-class NostrRawNpubParser implements InlineParserInterface
+readonly class NostrRawNpubParser implements InlineParserInterface
 {
 
-    public function __construct()
+    public function __construct(private RedisCacheService $redisCacheService)
     {
     }
 
@@ -28,11 +28,10 @@ class NostrRawNpubParser implements InlineParserInterface
         $cursor = $inlineContext->getCursor();
         // Get the match and extract relevant parts
         $fullMatch = $inlineContext->getFullMatch();
-        $key = new Key();
-        $hex = $key->convertToHex($fullMatch);
+        $meta = $this->redisCacheService->getMetadata($fullMatch);
 
         // Create a new inline node for the custom link
-        $inlineContext->getContainer()->appendChild(new NostrMentionLink(null, $hex));
+        $inlineContext->getContainer()->appendChild(new NostrMentionLink($meta->name, $fullMatch));
 
         // Advance the cursor to consume the matched part (important!)
         $cursor->advanceBy(strlen($fullMatch));

src/Util/CommonMark/NostrSchemeExtension/NostrSchemeExtension.php

@@ -2,23 +2,23 @@
 
 namespace App\Util\CommonMark\NostrSchemeExtension;
 
-use App\Util\Bech32\Bech32Decoder;
+use App\Service\RedisCacheService;
 use League\CommonMark\Environment\EnvironmentBuilderInterface;
 use League\CommonMark\Extension\ExtensionInterface;
 
 class NostrSchemeExtension  implements ExtensionInterface
 {
 
-    public function __construct(private readonly Bech32Decoder $bech32Decoder)
+    public function __construct(private readonly RedisCacheService $redisCacheService)
     {
     }
 
     public function register(EnvironmentBuilderInterface $environment): void
     {
         $environment
-            ->addInlineParser(new NostrMentionParser(), 200)
-            ->addInlineParser(new NostrSchemeParser($this->bech32Decoder), 199)
-            ->addInlineParser(new NostrRawNpubParser(), 198)
+            ->addInlineParser(new NostrMentionParser($this->redisCacheService), 200)
+            ->addInlineParser(new NostrSchemeParser(), 199)
+            ->addInlineParser(new NostrRawNpubParser($this->redisCacheService), 198)
 
             ->addRenderer(NostrSchemeData::class, new NostrEventRenderer(), 2)
             ->addRenderer(NostrMentionLink::class, new NostrMentionRenderer(), 1)

src/Util/CommonMark/NostrSchemeExtension/NostrSchemeParser.php

@@ -2,18 +2,18 @@
 
 namespace App\Util\CommonMark\NostrSchemeExtension;
 
-use App\Util\Bech32\Bech32Decoder;
 use League\CommonMark\Parser\Inline\InlineParserInterface;
 use League\CommonMark\Parser\Inline\InlineParserMatch;
 use League\CommonMark\Parser\InlineParserContext;
-use function BitWasp\Bech32\convertBits;
-use function BitWasp\Bech32\decode;
-
+use nostriphant\NIP19\Bech32;
+use nostriphant\NIP19\Data\NAddr;
+use nostriphant\NIP19\Data\NEvent;
+use nostriphant\NIP19\Data\NProfile;
 
 class NostrSchemeParser  implements InlineParserInterface
 {
 
-    public function __construct(private Bech32Decoder $bech32Decoder)
+    public function __construct()
     {
     }
 
@@ -30,58 +30,36 @@ class NostrSchemeParser  implements InlineParserInterface
         // The match is a Bech32 encoded string
         // decode it to get the parts
         $bechEncoded = substr($fullMatch, 6);  // Extract the part after "nostr:", i.e., "XXXX"
-        // dump($bechEncoded);
 
         try {
-            list($hrp, $tlv) = $this->bech32Decoder->decodeAndParseNostrBech32($bechEncoded);
-            // dump($hrp);
-            // dump($tlv);
-            switch ($hrp) {
+            $decoded = new Bech32($bechEncoded);
+
+            switch ($decoded->type) {
                 case 'npub':
-                    $str = '';
-                    list($hrp, $data) = decode($bechEncoded);
-                    $bytes = convertBits($data, count($data), 5, 8, false);
-                    foreach ($bytes as $item) {
-                        $str .= str_pad(dechex($item), 2, '0', STR_PAD_LEFT);
-                    }
-                    $npubPart = $str;
-                    $inlineContext->getContainer()->appendChild(new NostrMentionLink(null, $npubPart));
+                    $inlineContext->getContainer()->appendChild(new NostrMentionLink(null, $decoded->data));
                     break;
                 case 'nprofile':
-                    $type = 0; // npub
-                    foreach ($tlv as $item) {
-                        if ($item['type'] === $type) {
-                            // from array of integers to string
-                            $str = '';
-                            foreach ($item['value'] as $byte) {
-                                $str .= str_pad(dechex($byte), 2, '0', STR_PAD_LEFT);
-                            }
-                            $npubPart = $str;
-                            break;
-                        }
-                    }
-                    if (isset($npubPart)) {
-                        $inlineContext->getContainer()->appendChild(new NostrMentionLink(null, $npubPart));
-                    }
+                    /** @var NProfile $decodedProfile */
+                    $decodedProfile = $decoded->data;
+                    $inlineContext->getContainer()->appendChild(new NostrMentionLink(null, $decodedProfile->getPubkey()));
                     break;
                 case 'nevent':
-                    foreach ($tlv as $item) {
-                        // event id
-                        if ($item['type'] === 0) {
-                            $eventId = implode('', array_map(fn($byte) => sprintf('%02x', $byte), $item['value']));
-                            break;
-                        }
-                        // relays
-                        if ($item['type'] === 1) {
-                            $relays[] = implode('', array_map('chr', $item['value']));
-                        }
-                    }
-                    // dump($relays ?? null);
-                    // TODO also potentially contains relays, author, and kind
-                    $inlineContext->getContainer()->appendChild(new NostrSchemeData('nevent', $eventId, $relays ?? null, null, null));
+                    /** @var NEvent $decodedNpub */
+                    $decodedEvent = $decoded->data;
+                    $eventId = $decodedEvent->getId();
+                    $relays = $decodedEvent->getRelays();
+                    $author = $decodedEvent->getAuthor();
+                    $kind = $decodedEvent->getKind();
+                    $inlineContext->getContainer()->appendChild(new NostrSchemeData('nevent', $eventId, $relays, $author, $kind));
                     break;
                 case 'naddr':
-                    $inlineContext->getContainer()->appendChild(new NostrSchemeData('naddr', $bechEncoded, null, null, null));
+                    /** @var NAddr $decodedNpub */
+                    $decodedEvent = $decoded->data;
+                    $identifier = $decodedEvent->getIdentifier();
+                    $pubkey = $decodedEvent->getPubkey();
+                    $kind = $decodedEvent->getKind();
+                    $relays = $decodedEvent->getRelays();
+                    $inlineContext->getContainer()->appendChild(new NostrSchemeData('naddr', $identifier, $relays, $pubkey, $kind));
                     break;
                 case 'nrelay':
                     // deprecated