Changeset 51653 for trunk/tests/phpunit/tests/functions.php

Timestamp:

08/24/2021 08:50:21 PM (3 years ago)

Author:

azaozz

Message:

Media: Fix wp_unique_filename() to check for name collisions with all alternate file names when an image may be converted after uploading. This includes possible collinions with pre-existing images whose sub-sizes/thumbnails are regenerated.

Props ianmjones, azaozz.
Fixes #53668.

File:

• trunk/tests/phpunit/tests/functions.php (modified) (3 diffs)

trunk/tests/phpunit/tests/functions.php

@@ -169 +169 @@
 
         // Sanity check.
-        $this->assertSame( 'abcdefg.png', wp_unique_filename( $testdir, 'abcdefg.png' ), 'Sanitiy check failed' );
-
-        // Check number is appended for file already exists.
+        $this->assertSame( 'abcdefg.png', wp_unique_filename( $testdir, 'abcdefg.png' ), 'Test non-existing file, file name should be unchanged.' );
+
+        // Ensure correct images exist.
         $this->assertFileExists( $testdir . 'test-image.png', 'Test image does not exist' );
-        $this->assertSame( 'test-image-1.png', wp_unique_filename( $testdir, 'test-image.png' ), 'Number not appended correctly' );
         $this->assertFileDoesNotExist( $testdir . 'test-image-1.png' );
+
+        // Check number is appended if file already exists.
+        $this->assertSame( 'test-image-1.png', wp_unique_filename( $testdir, 'test-image.png' ), 'File name not unique, number not appended.' );
+
+        // Check file with uppercase extension.
+        $this->assertSame( 'test-image-1.png', wp_unique_filename( $testdir, 'test-image.PNG' ), 'File name with uppercase extension not unique, number not appended.' );
+
+        // Check file name with already added number.
+        $this->assertSame( 'test-image-2-1.gif', wp_unique_filename( $testdir, 'test-image-2.gif' ), 'File name not unique, number not appended correctly.' );
 
         // Check special chars.
@@ -220 +228 @@
         $upload_dir['basedir'] = DIR_TESTDATA . '/images/';
         return $upload_dir;
+    }
+
+    /**
+     * @ticket 53668
+     */
+    function test_wp_unique_filename_with_additional_image_extension() {
+        $testdir = DIR_TESTDATA . '/images/';
+
+        add_filter( 'upload_dir', array( $this, 'upload_dir_patch_basedir' ) );
+
+        // Set conversions for uploaded images.
+        add_filter( 'image_editor_output_format', array( $this, 'image_editor_output_format_handler' ) );
+
+        // Ensure the test images exist.
+        $this->assertFileExists( $testdir . 'test-image-1-100x100.jpg', 'test-image-1-100x100.jpg does not exist' );
+        $this->assertFileExists( $testdir . 'test-image-2.gif', 'test-image-2.gif does not exist' );
+        $this->assertFileExists( $testdir . 'test-image-3.jpg', 'test-image-3.jpg does not exist' );
+        $this->assertFileExists( $testdir . 'test-image-4.png', 'test-image-4.png does not exist' );
+
+        // Standard test: file does not exist and there are no possible intersections with other files.
+        $this->assertSame(
+            'abcdef.png',
+            wp_unique_filename( $testdir, 'abcdef.png' ),
+            'The abcdef.png, abcdef.gif, and abcdef.jpg images do not exist. The file name should not be changed.'
+        );
+
+        // Actual clash recognized.
+        $this->assertSame(
+            'canola-1.jpg',
+            wp_unique_filename( $testdir, 'canola.jpg' ),
+            'The canola.jpg image exists. The file name should be unique.'
+        );
+
+        // Same name with different extension and the image will be converted.
+        $this->assertSame(
+            'canola-1.png',
+            wp_unique_filename( $testdir, 'canola.png' ),
+            'The canola.jpg image exists. Uploading canola.png that will be converted to canola.jpg should produce unique file name.'
+        );
+
+        // Same name with different uppercase extension and the image will be converted.
+        $this->assertSame(
+            'canola-1.png',
+            wp_unique_filename( $testdir, 'canola.PNG' ),
+            'The canola.jpg image exists. Uploading canola.PNG that will be converted to canola.jpg should produce unique file name.'
+        );
+
+        // Actual clash with several images with different extensions.
+        $this->assertSame(
+            'test-image-5.png',
+            wp_unique_filename( $testdir, 'test-image.png' ),
+            'The test-image.png, test-image-1-100x100.jpg, test-image-2.gif, test-image-3.jpg, and test-image-4.png images exist.' .
+            'All of them may clash when creating sub-sizes or regenerating thumbnails in the future. The filename should be unique.'
+        );
+
+        // Possible clash with regenerated thumbnails in the future.
+        $this->assertSame(
+            'codeispoetry-1.jpg',
+            wp_unique_filename( $testdir, 'codeispoetry.jpg' ),
+            'The codeispoetry.png image exists. When regenerating thumbnails for it they will be converted to JPG.' .
+            'The name of the newly uploaded codeispoetry.jpg should be made unique.'
+        );
+
+        remove_filter( 'image_editor_output_format', array( $this, 'image_editor_output_format_handler' ) );
+        remove_filter( 'upload_dir', array( $this, 'upload_dir_patch_basedir' ) );
+    }
+
+    /**
+     * Changes the output format when editing images. When uploading a PNG file
+     * it will be converted to JPEG, GIF to JPEG, and PICT to BMP
+     * (if the image editor in PHP supports it).
+     *
+     * @param array $formats
+     *
+     * @return array
+     */
+    public function image_editor_output_format_handler( $formats ) {
+        $formats['image/png'] = 'image/jpeg';
+        $formats['image/gif'] = 'image/jpeg';
+        $formats['image/pct'] = 'image/bmp';
+
+        return $formats;
     }
 
@@ -1947 +2037 @@
         );
     }
+
+    /**
+     * @ticket 53668
+     */
+    public function test_wp_get_default_extension_for_mime_type() {
+        $this->assertEquals( 'jpg', wp_get_default_extension_for_mime_type( 'image/jpeg' ), 'jpg not returned as default extension for "image/jpeg"' );
+        $this->assertNotEquals( 'jpeg', wp_get_default_extension_for_mime_type( 'image/jpeg' ), 'jpeg should not be returned as default extension for "image/jpeg"' );
+        $this->assertEquals( 'png', wp_get_default_extension_for_mime_type( 'image/png' ), 'png not returned as default extension for "image/png"' );
+        $this->assertFalse( wp_get_default_extension_for_mime_type( 'wibble/wobble' ), 'false not returned for unrecognized mime type' );
+        $this->assertFalse( wp_get_default_extension_for_mime_type( '' ), 'false not returned when empty string as mime type supplied' );
+        $this->assertFalse( wp_get_default_extension_for_mime_type( '   ' ), 'false not returned when empty string as mime type supplied' );
+        $this->assertFalse( wp_get_default_extension_for_mime_type( 123 ), 'false not returned when int as mime type supplied' );
+        $this->assertFalse( wp_get_default_extension_for_mime_type( null ), 'false not returned when null as mime type supplied' );
+    }
 }