ea

src/Constrict/File.php

@@ -38,7 +38,7 @@ class File
 		4 => 'No file was uploaded.',
 		6 => 'Missing a temporary folder.',
 		7 => 'Failed to write file to disk.',
-        8 => 'A PHP extension stopped the file upload.'
+		8 => 'A PHP extension stopped the file upload.',
 	];
 
 	/**
@@ -65,14 +65,19 @@ class File
 	 */
 	public function rename(): string
 	{
-        if (!empty($this->newName)) return $this->newName;
+		if (!empty($this->newName))
+			return $this->newName;
 		if (!file_exists($this->getTmpPath())) {
 			throw new Exception('(' . $this->name . ')Failed to open stream: No such file or directory');
 		}
 
 		$hash  = md5_file($this->getTmpPath());
-
-        $later = '.' . exif_imagetype($this->getTmpPath());
+		$later = match ($this->type) {
+			'image/jpeg', 'image/jpg' => '.jpeg',
+			'image/gif'               => '.gif',
+			'image/png'               => '.png',
+			default                   => '.' . $this->exif_imageType(),
+		};
 
 		$match = '/(\w{12})(\w{5})(\w{9})(\w{6})/';
 		$tmp   = preg_replace($match, '$1-$2-$3-$4', $hash);
@@ -80,6 +85,36 @@ class File
 		return $this->name = strtoupper($tmp) . $later;
 	}
 
+	/**
+	 * @return int|null
+	 * @throws Exception
+	 */
+	private function exif_imageType(): ?int
+	{
+		return match (\exif_imagetype($this->tmp_name)) {
+			IMAGETYPE_GIF                        => '.gif',
+			IMAGETYPE_JPEG                       => '.jpg',
+			IMAGETYPE_PNG                        => '.png',
+			IMAGETYPE_SWF                        => '.swf',
+			IMAGETYPE_PSD                        => '.psd',
+			IMAGETYPE_BMP                        => '.bmp',
+			IMAGETYPE_TIFF_II, IMAGETYPE_TIFF_MM => '.tiff',
+			IMAGETYPE_JPC                        => '.jpc',
+			IMAGETYPE_JP2                        => '.jp2',
+			IMAGETYPE_JPX                        => '.jpx',
+			IMAGETYPE_JB2                        => '.jb2',
+			IMAGETYPE_SWC                        => '.swc',
+			IMAGETYPE_IFF                        => '.iff',
+			IMAGETYPE_WBMP                       => '.wbmp',
+			IMAGETYPE_XBM                        => '.xbm',
+			IMAGETYPE_ICO                        => '.ico',
+			IMAGETYPE_WEBP                       => '.webp',
+			IMAGETYPE_AVIF                       => '.avif',
+			default                              => throw new Exception('未知的图片类型'),
+		};
+	}
+
+
 	/**
 	 * @return string
 	 */