Add support for reading from a WebStreams

Stream Blob via a WebStreams, instead of buffering the full content

Author: Borewit

core.js

@@ -88,8 +88,7 @@ export class FileTypeParser {
 	}
 
 	async fromBlob(blob) {
-		const buffer = await blob.arrayBuffer();
-		return this.fromBuffer(new Uint8Array(buffer));
+		return this.fromWebStream(blob.stream());
 	}
 
 	async fromStream(stream) {
@@ -101,6 +100,15 @@ export class FileTypeParser {
 		}
 	}
 
+	async fromWebStream(webStream) {
+		const tokenizer = await strtok3.fromWebStream(webStream);
+		try {
+			return await this.fromTokenizer(tokenizer);
+		} finally {
+			await tokenizer.close();
+		}
+	}
+
 	async toDetectionStream(readableStream, options = {}) {
 		const {default: stream} = await import('node:stream');
 		const {sampleSize = minimumBytes} = options;