Recognizes Open Document Database

Mediawiki does not recognizes the mime type of an OpenOffice / Libre
Office Database Frontend Document and thus uses application/zip.

Our MimeAnalyzer::detectZipType() looks at the Zip files to detect known
signatures, however it is based on a reference from 2005 which did not
have the Database type yet.

OASIS Open Document Format v1.2 specify non normative MIME types, the
reference supposedly being the ones registered with the IANA, but we
have some dispredancy: ODF recommends 'base' while the IANA got
'database' registered: https://www.iana.org/assignments/media-types/

I supposed the format got approved as is, the Database mime type being
'recommended' probably because the IANA registration was pending.

Add the 'base' type which is being used by OpenOffice 3.x and later as
well as at least Libre Office 5.x.
Document my findings in code comments.
Add a test.

Bug: T35515
Change-Id: If0210a87067358612ecb8b3edd001fb05d01653d

diff --git a/includes/libs/mime/MimeAnalyzer.php b/includes/libs/mime/MimeAnalyzer.php
index f493769..42146f4 100644 (file)
--- a/includes/libs/mime/MimeAnalyzer.php
+++ b/includes/libs/mime/MimeAnalyzer.php
@@ -878,6 +878,14 @@ EOT;
 
                $mime = 'application/zip';
                $opendocTypes = [
+                       # In OASIS Open Document Format v1.2, Database front end document
+                       # has a recommended MIME type of:
+                       # application/vnd.oasis.opendocument.base
+                       # Despite the type registered at the IANA being 'database' which is
+                       # supposed to be normative.
+                       # T35515
+                       'base',
+
                        'chart-template',
                        'chart',
                        'formula-template',
@@ -895,7 +903,10 @@ EOT;
                        'text-web',
                        'text' ];
 
-               // https://lists.oasis-open.org/archives/office/200505/msg00006.html
+               // The list of document types is available in OASIS Open Document
+               // Format version 1.2 under Appendix C. It is not normative though,
+               // supposedly types registered at the IANA should be.
+               // http://docs.oasis-open.org/office/v1.2/os/OpenDocument-v1.2-os-part1.html
                $types = '(?:' . implode( '|', $opendocTypes ) . ')';
                $opendocRegex = "/^mimetype(application\/vnd\.oasis\.opendocument\.$types)/";
 

diff --git a/tests/phpunit/includes/libs/mime/MimeAnalyzerTest.php b/tests/phpunit/includes/libs/mime/MimeAnalyzerTest.php
index 1947812..0f23b8c 100644 (file)
--- a/tests/phpunit/includes/libs/mime/MimeAnalyzerTest.php
+++ b/tests/phpunit/includes/libs/mime/MimeAnalyzerTest.php
@@ -137,4 +137,30 @@ class MimeAnalyzerTest extends PHPUnit\Framework\TestCase {
                $actualType = $this->doGuessMimeType( [ $file, 'doc' ] );
                $this->assertEquals( 'application/msword', $actualType );
        }
+
+       /**
+        * @covers MimeAnalyzer::detectZipType
+        * @dataProvider provideOpendocumentsformatHeaders
+        */
+       function testDetectZipTypeRecognizesOpendocuments( $expected, $header ) {
+               $this->assertEquals(
+                       $expected,
+                       $this->mimeAnalyzer->detectZipType( $header )
+               );
+       }
+
+       /**
+        * An ODF file is a ZIP file of multiple files. The first one being
+        * 'mimetype' and is not compressed.
+        */
+       function provideOpendocumentsformatHeaders() {
+               $thirtychars = str_repeat( 0, 30 );
+               return [
+                       'Database front end document header based on ODF 1.2' => [
+                               'application/vnd.oasis.opendocument.base',
+                               $thirtychars . 'mimetypeapplication/vnd.oasis.opendocument.basePK',
+                       ],
+               ];
+       }
+
 }