MediaWiki  REL1_31
JpegMetadataExtractorTest.php
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1 <?php
13 
14  protected $filePath;
15 
16  protected function setUp() {
17  parent::setUp();
18 
19  $this->filePath = __DIR__ . '/../../data/media/';
20  }
21 
30  public function testUtf8Comment( $file ) {
31  $res = JpegMetadataExtractor::segmentSplitter( $this->filePath . $file );
32  $this->assertEquals( [ 'UTF-8 JPEG Comment — ¼' ], $res['COM'] );
33  }
34 
35  public static function provideUtf8Comment() {
36  return [
37  [ 'jpeg-comment-utf.jpg' ],
38  [ 'jpeg-padding-even.jpg' ],
39  [ 'jpeg-padding-odd.jpg' ],
40  ];
41  }
42 
44  public function testIso88591Comment() {
45  $res = JpegMetadataExtractor::segmentSplitter( $this->filePath . 'jpeg-comment-iso8859-1.jpg' );
46  $this->assertEquals( [ 'ISO-8859-1 JPEG Comment - ¼' ], $res['COM'] );
47  }
48 
53  public function testBinaryCommentStripped() {
54  $res = JpegMetadataExtractor::segmentSplitter( $this->filePath . 'jpeg-comment-binary.jpg' );
55  $this->assertEmpty( $res['COM'] );
56  }
57 
58  /* Very rarely a file can have multiple comments.
59  * Order of comments is based on order inside the file.
60  */
61  public function testMultipleComment() {
62  $res = JpegMetadataExtractor::segmentSplitter( $this->filePath . 'jpeg-comment-multiple.jpg' );
63  $this->assertEquals( [ 'foo', 'bar' ], $res['COM'] );
64  }
65 
66  public function testXMPExtraction() {
67  $res = JpegMetadataExtractor::segmentSplitter( $this->filePath . 'jpeg-xmp-psir.jpg' );
68  $expected = file_get_contents( $this->filePath . 'jpeg-xmp-psir.xmp' );
69  $this->assertEquals( $expected, $res['XMP'] );
70  }
71 
72  public function testPSIRExtraction() {
73  $res = JpegMetadataExtractor::segmentSplitter( $this->filePath . 'jpeg-xmp-psir.jpg' );
74  $expected = '50686f746f73686f7020332e30003842494d04040000000'
75  . '000181c02190004746573741c02190003666f6f1c020000020004';
76  $this->assertEquals( $expected, bin2hex( $res['PSIR'][0] ) );
77  }
78 
79  public function testXMPExtractionNullChar() {
80  $res = JpegMetadataExtractor::segmentSplitter( $this->filePath . 'jpeg-xmp-nullchar.jpg' );
81  $expected = file_get_contents( $this->filePath . 'jpeg-xmp-psir.xmp' );
82  $this->assertEquals( $expected, $res['XMP'] );
83  }
84 
85  public function testXMPExtractionAltAppId() {
86  $res = JpegMetadataExtractor::segmentSplitter( $this->filePath . 'jpeg-xmp-alt.jpg' );
87  $expected = file_get_contents( $this->filePath . 'jpeg-xmp-psir.xmp' );
88  $this->assertEquals( $expected, $res['XMP'] );
89  }
90 
91  public function testIPTCHashComparisionNoHash() {
92  $segments = JpegMetadataExtractor::segmentSplitter( $this->filePath . 'jpeg-xmp-psir.jpg' );
93  $res = JpegMetadataExtractor::doPSIR( $segments['PSIR'][0] );
94 
95  $this->assertEquals( 'iptc-no-hash', $res );
96  }
97 
98  public function testIPTCHashComparisionBadHash() {
99  $segments = JpegMetadataExtractor::segmentSplitter( $this->filePath . 'jpeg-iptc-bad-hash.jpg' );
100  $res = JpegMetadataExtractor::doPSIR( $segments['PSIR'][0] );
101 
102  $this->assertEquals( 'iptc-bad-hash', $res );
103  }
104 
106  $segments = JpegMetadataExtractor::segmentSplitter( $this->filePath . 'jpeg-iptc-good-hash.jpg' );
107  $res = JpegMetadataExtractor::doPSIR( $segments['PSIR'][0] );
108 
109  $this->assertEquals( 'iptc-good-hash', $res );
110  }
111 
112  public function testExifByteOrder() {
113  $res = JpegMetadataExtractor::segmentSplitter( $this->filePath . 'exif-user-comment.jpg' );
114  $expected = 'BE';
115  $this->assertEquals( $expected, $res['byteOrder'] );
116  }
117 
118  public function testInfiniteRead() {
119  // test file truncated right after a segment, which previously
120  // caused an infinite loop looking for the next segment byte.
121  // Should get past infinite loop and throw in wfUnpack()
122  $this->setExpectedException( 'MWException' );
123  $res = JpegMetadataExtractor::segmentSplitter( $this->filePath . 'jpeg-segment-loop1.jpg' );
124  }
125 
126  public function testInfiniteRead2() {
127  // test file truncated after a segment's marker and size, which
128  // would cause a seek past end of file. Seek past end of file
129  // doesn't actually fail, but prevents further reading and was
130  // devolving into the previous case (testInfiniteRead).
131  $this->setExpectedException( 'MWException' );
132  $res = JpegMetadataExtractor::segmentSplitter( $this->filePath . 'jpeg-segment-loop2.jpg' );
133  }
134 }
JpegMetadataExtractorTest\testXMPExtraction
testXMPExtraction()
Definition: JpegMetadataExtractorTest.php:66
JpegMetadataExtractorTest\testXMPExtractionAltAppId
testXMPExtractionAltAppId()
Definition: JpegMetadataExtractorTest.php:85
JpegMetadataExtractorTest\testIso88591Comment
testIso88591Comment()
The file is iso-8859-1, but it should get auto converted.
Definition: JpegMetadataExtractorTest.php:44
JpegMetadataExtractorTest\testIPTCHashComparisionBadHash
testIPTCHashComparisionBadHash()
Definition: JpegMetadataExtractorTest.php:98
$res
$res
Definition: database.txt:21
php
injection txt This is an overview of how MediaWiki makes use of dependency injection The design described here grew from the discussion of RFC T384 The term dependency this means that anything an object needs to operate should be injected from the the object itself should only know narrow no concrete implementation of the logic it relies on The requirement to inject everything typically results in an architecture that based on two main types of and essentially stateless service objects that use other service objects to operate on the value objects As of the beginning MediaWiki is only starting to use the DI approach Much of the code still relies on global state or direct resulting in a highly cyclical dependency which acts as the top level factory for services in MediaWiki which can be used to gain access to default instances of various services MediaWikiServices however also allows new services to be defined and default services to be redefined Services are defined or redefined by providing a callback the instantiator that will return a new instance of the service When it will create an instance of MediaWikiServices and populate it with the services defined in the files listed by thereby bootstrapping the DI framework Per $wgServiceWiringFiles lists includes ServiceWiring php
Definition: injection.txt:37
JpegMetadataExtractorTest\testIPTCHashComparisionNoHash
testIPTCHashComparisionNoHash()
Definition: JpegMetadataExtractorTest.php:91
JpegMetadataExtractorTest\testInfiniteRead
testInfiniteRead()
Definition: JpegMetadataExtractorTest.php:118
JpegMetadataExtractorTest\setUp
setUp()
Definition: JpegMetadataExtractorTest.php:16
JpegMetadataExtractorTest
Definition: JpegMetadataExtractorTest.php:12
MediaWikiTestCase
Definition: MediaWikiTestCase.php:17
JpegMetadataExtractor\doPSIR
static doPSIR( $app13)
This reads the photoshop image resource.
Definition: JpegMetadataExtractor.php:210
JpegMetadataExtractorTest\testUtf8Comment
testUtf8Comment( $file)
We also use this test to test padding bytes don't screw stuff up.
Definition: JpegMetadataExtractorTest.php:30
JpegMetadataExtractorTest\testPSIRExtraction
testPSIRExtraction()
Definition: JpegMetadataExtractorTest.php:72
JpegMetadataExtractorTest\testIPTCHashComparisionGoodHash
testIPTCHashComparisionGoodHash()
Definition: JpegMetadataExtractorTest.php:105
JpegMetadataExtractorTest\testInfiniteRead2
testInfiniteRead2()
Definition: JpegMetadataExtractorTest.php:126
JpegMetadataExtractor\segmentSplitter
static segmentSplitter( $filename)
Function to extract metadata segments of interest from jpeg files based on GIFMetadataExtractor.
Definition: JpegMetadataExtractor.php:50
JpegMetadataExtractorTest\testMultipleComment
testMultipleComment()
Definition: JpegMetadataExtractorTest.php:61
JpegMetadataExtractorTest\testExifByteOrder
testExifByteOrder()
Definition: JpegMetadataExtractorTest.php:112
JpegMetadataExtractorTest\provideUtf8Comment
static provideUtf8Comment()
Definition: JpegMetadataExtractorTest.php:35
JpegMetadataExtractorTest\$filePath
$filePath
Definition: JpegMetadataExtractorTest.php:14
JpegMetadataExtractorTest\testBinaryCommentStripped
testBinaryCommentStripped()
Comment values that are non-textual (random binary junk) should not be shown.
Definition: JpegMetadataExtractorTest.php:53
JpegMetadataExtractorTest\testXMPExtractionNullChar
testXMPExtractionNullChar()
Definition: JpegMetadataExtractorTest.php:79