GlobalTest.php

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<?php

class GlobalTest extends MediaWikiTestCase {
    protected function setUp() {
        parent::setUp();

        $readOnlyFile = $this->getNewTempFile();
        unlink( $readOnlyFile );

        $this->setMwGlobals( [
            'wgReadOnlyFile' => $readOnlyFile,
            'wgUrlProtocols' => [
                'http://',
                'https://',
                'mailto:',
                '//',
                'file://', # Non-default
            ],
        ] );
    }

    public function testWfArrayDiff2( $a, $b, $expected ) {
        $this->assertEquals(
            wfArrayDiff2( $a, $b ), $expected
        );
    }

    // @todo Provide more tests
    public static function provideForWfArrayDiff2() {
        // $a $b $expected
        return [
            [
                [ 'a', 'b' ],
                [ 'a', 'b' ],
                [],
            ],
            [
                [ [ 'a' ], [ 'a', 'b', 'c' ] ],
                [ [ 'a' ], [ 'a', 'b' ] ],
                [ 1 => [ 'a', 'b', 'c' ] ],
            ],
        ];
    }

    /*
     * Test cases for random functions could hypothetically fail,
     * even though they shouldn't.
     */

    public function testRandom() {
        $this->assertFalse(
            wfRandom() == wfRandom()
        );
    }

    public function testRandomString() {
        $this->assertFalse(
            wfRandomString() == wfRandomString()
        );
        $this->assertEquals(
            strlen( wfRandomString( 10 ) ), 10
        );
        $this->assertTrue(
            preg_match( '/^[0-9a-f]+$/i', wfRandomString() ) === 1
        );
    }

    public function testUrlencode() {
        $this->assertEquals(
            "%E7%89%B9%E5%88%A5:Contributions/Foobar",
            wfUrlencode( "\xE7\x89\xB9\xE5\x88\xA5:Contributions/Foobar" ) );
    }

    public function testExpandIRI() {
        $this->assertEquals(
            "https://te.wikibooks.org/wiki/ఉబుంటు_వాడుకరి_మార్గదర్శని",
            wfExpandIRI( "https://te.wikibooks.org/wiki/"
                . "%E0%B0%89%E0%B0%AC%E0%B1%81%E0%B0%82%E0%B0%9F%E0%B1%81_"
                . "%E0%B0%B5%E0%B0%BE%E0%B0%A1%E0%B1%81%E0%B0%95%E0%B0%B0%E0%B0%BF_"
                . "%E0%B0%AE%E0%B0%BE%E0%B0%B0%E0%B1%8D%E0%B0%97%E0%B0%A6%E0%B0%B0"
                . "%E0%B1%8D%E0%B0%B6%E0%B0%A8%E0%B0%BF" ) );
    }

    public function testReadOnlyEmpty() {
        global $wgReadOnly;
        $wgReadOnly = null;

        $this->assertFalse( wfReadOnly() );
        $this->assertFalse( wfReadOnly() );
    }

    public function testReadOnlySet() {
        global $wgReadOnly, $wgReadOnlyFile;

        $f = fopen( $wgReadOnlyFile, "wt" );
        fwrite( $f, 'Message' );
        fclose( $f );
        $wgReadOnly = null; # Check on $wgReadOnlyFile

        $this->assertTrue( wfReadOnly() );
        $this->assertTrue( wfReadOnly() ); # Check cached

        unlink( $wgReadOnlyFile );
        $wgReadOnly = null; # Clean cache

        $this->assertFalse( wfReadOnly() );
        $this->assertFalse( wfReadOnly() );
    }

    public static function provideArrayToCGI() {
        return [
            [ [], '' ], // empty
            [ [ 'foo' => 'bar' ], 'foo=bar' ], // string test
            [ [ 'foo' => '' ], 'foo=' ], // empty string test
            [ [ 'foo' => 1 ], 'foo=1' ], // number test
            [ [ 'foo' => true ], 'foo=1' ], // true test
            [ [ 'foo' => false ], '' ], // false test
            [ [ 'foo' => null ], '' ], // null test
            [ [ 'foo' => 'A&B=5+6@!"\'' ], 'foo=A%26B%3D5%2B6%40%21%22%27' ], // urlencoding test
            [
                [ 'foo' => 'bar', 'baz' => 'is', 'asdf' => 'qwerty' ],
                'foo=bar&baz=is&asdf=qwerty'
            ], // multi-item test
            [ [ 'foo' => [ 'bar' => 'baz' ] ], 'foo%5Bbar%5D=baz' ],
            [
                [ 'foo' => [ 'bar' => 'baz', 'qwerty' => 'asdf' ] ],
                'foo%5Bbar%5D=baz&foo%5Bqwerty%5D=asdf'
            ],
            [ [ 'foo' => [ 'bar', 'baz' ] ], 'foo%5B0%5D=bar&foo%5B1%5D=baz' ],
            [
                [ 'foo' => [ 'bar' => [ 'bar' => 'baz' ] ] ],
                'foo%5Bbar%5D%5Bbar%5D=baz'
            ],
        ];
    }

    public function testArrayToCGI( $array, $result ) {
        $this->assertEquals( $result, wfArrayToCgi( $array ) );
    }

    public function testArrayToCGI2() {
        $this->assertEquals(
            "baz=bar&foo=bar",
            wfArrayToCgi(
                [ 'baz' => 'bar' ],
                [ 'foo' => 'bar', 'baz' => 'overridden value' ] ) );
    }

    public static function provideCgiToArray() {
        return [
            [ '', [] ], // empty
            [ 'foo=bar', [ 'foo' => 'bar' ] ], // string
            [ 'foo=', [ 'foo' => '' ] ], // empty string
            [ 'foo', [ 'foo' => '' ] ], // missing =
            [ 'foo=bar&qwerty=asdf', [ 'foo' => 'bar', 'qwerty' => 'asdf' ] ], // multiple value
            [ 'foo=A%26B%3D5%2B6%40%21%22%27', [ 'foo' => 'A&B=5+6@!"\'' ] ], // urldecoding test
            [ 'foo%5Bbar%5D=baz', [ 'foo' => [ 'bar' => 'baz' ] ] ],
            [
                'foo%5Bbar%5D=baz&foo%5Bqwerty%5D=asdf',
                [ 'foo' => [ 'bar' => 'baz', 'qwerty' => 'asdf' ] ]
            ],
            [ 'foo%5B0%5D=bar&foo%5B1%5D=baz', [ 'foo' => [ 0 => 'bar', 1 => 'baz' ] ] ],
            [
                'foo%5Bbar%5D%5Bbar%5D=baz',
                [ 'foo' => [ 'bar' => [ 'bar' => 'baz' ] ] ]
            ],
        ];
    }

    public function testCgiToArray( $cgi, $result ) {
        $this->assertEquals( $result, wfCgiToArray( $cgi ) );
    }

    public static function provideCgiRoundTrip() {
        return [
            [ '' ],
            [ 'foo=bar' ],
            [ 'foo=' ],
            [ 'foo=bar&baz=biz' ],
            [ 'foo=A%26B%3D5%2B6%40%21%22%27' ],
            [ 'foo%5Bbar%5D=baz' ],
            [ 'foo%5B0%5D=bar&foo%5B1%5D=baz' ],
            [ 'foo%5Bbar%5D%5Bbar%5D=baz' ],
        ];
    }

    public function testCgiRoundTrip( $cgi ) {
        $this->assertEquals( $cgi, wfArrayToCgi( wfCgiToArray( $cgi ) ) );
    }

    public function testMimeTypeMatch() {
        $this->assertEquals(
            'text/html',
            mimeTypeMatch( 'text/html',
                [ 'application/xhtml+xml' => 1.0,
                    'text/html' => 0.7,
                    'text/plain' => 0.3 ] ) );
        $this->assertEquals(
            'text/*',
            mimeTypeMatch( 'text/html',
                [ 'image/*' => 1.0,
                    'text/*' => 0.5 ] ) );
        $this->assertEquals(
            '*/*',
            mimeTypeMatch( 'text/html',
                [ '*/*' => 1.0 ] ) );
        $this->assertNull(
            mimeTypeMatch( 'text/html',
                [ 'image/png' => 1.0,
                    'image/svg+xml' => 0.5 ] ) );
    }

    public function testNegotiateType() {
        $this->assertEquals(
            'text/html',
            wfNegotiateType(
                [ 'application/xhtml+xml' => 1.0,
                    'text/html' => 0.7,
                    'text/plain' => 0.5,
                    'text/*' => 0.2 ],
                [ 'text/html' => 1.0 ] ) );
        $this->assertEquals(
            'application/xhtml+xml',
            wfNegotiateType(
                [ 'application/xhtml+xml' => 1.0,
                    'text/html' => 0.7,
                    'text/plain' => 0.5,
                    'text/*' => 0.2 ],
                [ 'application/xhtml+xml' => 1.0,
                    'text/html' => 0.5 ] ) );
        $this->assertEquals(
            'text/html',
            wfNegotiateType(
                [ 'text/html' => 1.0,
                    'text/plain' => 0.5,
                    'text/*' => 0.5,
                    'application/xhtml+xml' => 0.2 ],
                [ 'application/xhtml+xml' => 1.0,
                    'text/html' => 0.5 ] ) );
        $this->assertEquals(
            'text/html',
            wfNegotiateType(
                [ 'text/*' => 1.0,
                    'image/*' => 0.7,
                    '*/*' => 0.3 ],
                [ 'application/xhtml+xml' => 1.0,
                    'text/html' => 0.5 ] ) );
        $this->assertNull(
            wfNegotiateType(
                [ 'text/*' => 1.0 ],
                [ 'application/xhtml+xml' => 1.0 ] ) );
    }

    public function testDebugFunctionTest() {
        $debugLogFile = $this->getNewTempFile();

        $this->setMwGlobals( [
            'wgDebugLogFile' => $debugLogFile,
            #  @todo FIXME: $wgDebugTimestamps should be tested
            'wgDebugTimestamps' => false
        ] );

        wfDebug( "This is a normal string" );
        $this->assertEquals( "This is a normal string\n", file_get_contents( $debugLogFile ) );
        unlink( $debugLogFile );

        wfDebug( "This is nöt an ASCII string" );
        $this->assertEquals( "This is nöt an ASCII string\n", file_get_contents( $debugLogFile ) );
        unlink( $debugLogFile );

        wfDebug( "\00305This has böth UTF and control chars\003" );
        $this->assertEquals(
            " 05This has böth UTF and control chars \n",
            file_get_contents( $debugLogFile )
        );
        unlink( $debugLogFile );

        wfDebugMem();
        $this->assertGreaterThan(
            1000,
            preg_replace( '/\D/', '', file_get_contents( $debugLogFile ) )
        );
        unlink( $debugLogFile );

        wfDebugMem( true );
        $this->assertGreaterThan(
            1000000,
            preg_replace( '/\D/', '', file_get_contents( $debugLogFile ) )
        );
        unlink( $debugLogFile );
    }

    public function testClientAcceptsGzipTest() {

        $settings = [
            'gzip' => true,
            'bzip' => false,
            '*' => false,
            'compress, gzip' => true,
            'gzip;q=1.0' => true,
            'foozip' => false,
            'foo*zip' => false,
            'gzip;q=abcde' => true, // is this REALLY valid?
            'gzip;q=12345678.9' => true,
            ' gzip' => true,
        ];

        if ( isset( $_SERVER['HTTP_ACCEPT_ENCODING'] ) ) {
            $old_server_setting = $_SERVER['HTTP_ACCEPT_ENCODING'];
        }

        foreach ( $settings as $encoding => $expect ) {
            $_SERVER['HTTP_ACCEPT_ENCODING'] = $encoding;

            $this->assertEquals( $expect, wfClientAcceptsGzip( true ),
                "'$encoding' => " . wfBoolToStr( $expect ) );
        }

        if ( isset( $old_server_setting ) ) {
            $_SERVER['HTTP_ACCEPT_ENCODING'] = $old_server_setting;
        }
    }

    public function testWfPercentTest() {

        $pcts = [
            [ 6 / 7, '0.86%', 2, false ],
            [ 3 / 3, '1%' ],
            [ 22 / 7, '3.14286%', 5 ],
            [ 3 / 6, '0.5%' ],
            [ 1 / 3, '0%', 0 ],
            [ 10 / 3, '0%', -1 ],
            [ 3 / 4 / 5, '0.1%', 1 ],
            [ 6 / 7 * 8, '6.8571428571%', 10 ],
        ];

        foreach ( $pcts as $pct ) {
            if ( !isset( $pct[2] ) ) {
                $pct[2] = 2;
            }
            if ( !isset( $pct[3] ) ) {
                $pct[3] = true;
            }

            $this->assertEquals( wfPercent( $pct[0], $pct[2], $pct[3] ), $pct[1], $pct[1] );
        }
    }

    public function testWfShorthandToInteger( $shorthand, $expected ) {
        $this->assertEquals( $expected,
            wfShorthandToInteger( $shorthand )
        );
    }

    public static function provideShorthand() {
        return [
            # Null, empty ...
            [ '', -1 ],
            [ '  ', -1 ],
            [ null, -1 ],

            # Failures returns 0 :(
            [ 'ABCDEFG', 0 ],
            [ 'Ak', 0 ],

            # Int, strings with spaces
            [ 1, 1 ],
            [ ' 1 ', 1 ],
            [ 1023, 1023 ],
            [ ' 1023 ', 1023 ],

            # kilo, Mega, Giga
            [ '1k', 1024 ],
            [ '1K', 1024 ],
            [ '1m', 1024 * 1024 ],
            [ '1M', 1024 * 1024 ],
            [ '1g', 1024 * 1024 * 1024 ],
            [ '1G', 1024 * 1024 * 1024 ],

            # Negatives
            [ -1, -1 ],
            [ -500, -500 ],
            [ '-500', -500 ],
            [ '-1k', -1024 ],

            # Zeroes
            [ '0', 0 ],
            [ '0k', 0 ],
            [ '0M', 0 ],
            [ '0G', 0 ],
            [ '-0', 0 ],
            [ '-0k', 0 ],
            [ '-0M', 0 ],
            [ '-0G', 0 ],
        ];
    }

    public function testMerge( $old, $mine, $yours, $expectedMergeResult, $expectedText ) {
        $this->markTestSkippedIfNoDiff3();

        $mergedText = null;
        $isMerged = wfMerge( $old, $mine, $yours, $mergedText );

        $msg = 'Merge should be a ';
        $msg .= $expectedMergeResult ? 'success' : 'failure';
        $this->assertEquals( $expectedMergeResult, $isMerged, $msg );

        if ( $isMerged ) {
            // Verify the merged text
            $this->assertEquals( $expectedText, $mergedText,
                'is merged text as expected?' );
        }
    }

    public static function provideMerge() {
        $EXPECT_MERGE_SUCCESS = true;
        $EXPECT_MERGE_FAILURE = false;

        return [
            // #0: clean merge
            [
                // old:
                "one one one\n" . // trimmed
                    "\n" .
                    "two two two",

                // mine:
                "one one one ONE ONE\n" .
                    "\n" .
                    "two two two\n", // with tailing whitespace

                // yours:
                "one one one\n" .
                    "\n" .
                    "two two TWO TWO", // trimmed

                // ok:
                $EXPECT_MERGE_SUCCESS,

                // result:
                "one one one ONE ONE\n" .
                    "\n" .
                    "two two TWO TWO\n", // note: will always end in a newline
            ],

            // #1: conflict, fail
            [
                // old:
                "one one one", // trimmed

                // mine:
                "one one one ONE ONE\n" .
                    "\n" .
                    "bla bla\n" .
                    "\n", // with tailing whitespace

                // yours:
                "one one one\n" .
                    "\n" .
                    "two two", // trimmed

                $EXPECT_MERGE_FAILURE,

                // result:
                null,
            ],
        ];
    }

    public function testMakeUrlIndexes( $url, $expected ) {
        $index = wfMakeUrlIndexes( $url );
        $this->assertEquals( $expected, $index, "wfMakeUrlIndexes(\"$url\")" );
    }

    public static function provideMakeUrlIndexes() {
        return [
            // Testcase for T30627
            [
                'https://example.org/test.cgi?id=12345',
                [ 'https://org.example./test.cgi?id=12345' ]
            ],
            [
                // mailtos are handled special
                // is this really right though? that final . probably belongs earlier?
                'mailto:wiki@wikimedia.org',
                [ 'mailto:org.wikimedia@wiki.' ]
            ],

            // file URL cases per T30627...
            [
                // three slashes: local filesystem path Unix-style
                'file:///whatever/you/like.txt',
                [ 'file://./whatever/you/like.txt' ]
            ],
            [
                // three slashes: local filesystem path Windows-style
                'file:///c:/whatever/you/like.txt',
                [ 'file://./c:/whatever/you/like.txt' ]
            ],
            [
                // two slashes: UNC filesystem path Windows-style
                'file://intranet/whatever/you/like.txt',
                [ 'file://intranet./whatever/you/like.txt' ]
            ],
            // Multiple-slash cases that can sorta work on Mozilla
            // if you hack it just right are kinda pathological,
            // and unreliable cross-platform or on IE which means they're
            // unlikely to appear on intranets.
            // Those will survive the algorithm but with results that
            // are less consistent.

            // protocol-relative URL cases per T31854...
            [
                '//example.org/test.cgi?id=12345',
                [
                    'http://org.example./test.cgi?id=12345',
                    'https://org.example./test.cgi?id=12345'
                ]
            ],
        ];
    }

    public function testWfMatchesDomainList( $url, $domains, $expected, $description ) {
        $actual = wfMatchesDomainList( $url, $domains );
        $this->assertEquals( $expected, $actual, $description );
    }

    public static function provideWfMatchesDomainList() {
        $a = [];
        $protocols = [ 'HTTP' => 'http:', 'HTTPS' => 'https:', 'protocol-relative' => '' ];
        foreach ( $protocols as $pDesc => $p ) {
            $a = array_merge( $a, [
                [
                    "$p//www.example.com",
                    [],
                    false,
                    "No matches for empty domains array, $pDesc URL"
                ],
                [
                    "$p//www.example.com",
                    [ 'www.example.com' ],
                    true,
                    "Exact match in domains array, $pDesc URL"
                ],
                [
                    "$p//www.example.com",
                    [ 'example.com' ],
                    true,
                    "Match without subdomain in domains array, $pDesc URL"
                ],
                [
                    "$p//www.example2.com",
                    [ 'www.example.com', 'www.example2.com', 'www.example3.com' ],
                    true,
                    "Exact match with other domains in array, $pDesc URL"
                ],
                [
                    "$p//www.example2.com",
                    [ 'example.com', 'example2.com', 'example3,com' ],
                    true,
                    "Match without subdomain with other domains in array, $pDesc URL"
                ],
                [
                    "$p//www.example4.com",
                    [ 'example.com', 'example2.com', 'example3,com' ],
                    false,
                    "Domain not in array, $pDesc URL"
                ],
                [
                    "$p//nds-nl.wikipedia.org",
                    [ 'nl.wikipedia.org' ],
                    false,
                    "Non-matching substring of domain, $pDesc URL"
                ],
            ] );
        }

        return $a;
    }

    public function testWfMkdirParents() {
        // Should not return true if file exists instead of directory
        $fname = $this->getNewTempFile();
        MediaWiki\suppressWarnings();
        $ok = wfMkdirParents( $fname );
        MediaWiki\restoreWarnings();
        $this->assertFalse( $ok );
    }

    public function testWfShellWikiCmd( $script, $parameters, $options,
        $expected, $description
    ) {
        if ( wfIsWindows() ) {
            // Approximation that's good enough for our purposes just now
            $expected = str_replace( "'", '"', $expected );
        }
        $actual = wfShellWikiCmd( $script, $parameters, $options );
        $this->assertEquals( $expected, $actual, $description );
    }

    public function wfWikiID() {
        $this->setMwGlobals( [
            'wgDBname' => 'example',
            'wgDBprefix' => '',
        ] );
        $this->assertEquals(
            wfWikiID(),
            'example'
        );

        $this->setMwGlobals( [
            'wgDBname' => 'example',
            'wgDBprefix' => 'mw_',
        ] );
        $this->assertEquals(
            wfWikiID(),
            'example-mw_'
        );
    }

    public function testWfMemcKey() {
        $cache = ObjectCache::getLocalClusterInstance();
        $this->assertEquals(
            $cache->makeKey( 'foo', 123, 'bar' ),
            wfMemcKey( 'foo', 123, 'bar' )
        );
    }

    public function testWfForeignMemcKey() {
        $cache = ObjectCache::getLocalClusterInstance();
        $keyspace = $this->readAttribute( $cache, 'keyspace' );
        $this->assertEquals(
            wfForeignMemcKey( $keyspace, '', 'foo', 'bar' ),
            $cache->makeKey( 'foo', 'bar' )
        );
    }

    public function testWfGlobalCacheKey() {
        $cache = ObjectCache::getLocalClusterInstance();
        $this->assertEquals(
            $cache->makeGlobalKey( 'foo', 123, 'bar' ),
            wfGlobalCacheKey( 'foo', 123, 'bar' )
        );
    }

    public static function provideWfShellWikiCmdList() {
        global $wgPhpCli;

        return [
            [ 'eval.php', [ '--help', '--test' ], [],
                "'$wgPhpCli' 'eval.php' '--help' '--test'",
                "Called eval.php --help --test" ],
            [ 'eval.php', [ '--help', '--test space' ], [ 'php' => 'php5' ],
                "'php5' 'eval.php' '--help' '--test space'",
                "Called eval.php --help --test with php option" ],
            [ 'eval.php', [ '--help', '--test', 'X' ], [ 'wrapper' => 'MWScript.php' ],
                "'$wgPhpCli' 'MWScript.php' 'eval.php' '--help' '--test' 'X'",
                "Called eval.php --help --test with wrapper option" ],
            [
                'eval.php',
                [ '--help', '--test', 'y' ],
                [ 'php' => 'php5', 'wrapper' => 'MWScript.php' ],
                "'php5' 'MWScript.php' 'eval.php' '--help' '--test' 'y'",
                "Called eval.php --help --test with wrapper and php option"
            ],
        ];
    }
    /* @todo many more! */
}