xref: /plugin/dw2pdf/_test/MediaLinkResolverTest.php (revision 92200750cd9cfc4a9489fe7c04c6e41b5a3de6ee) 
1<?php
2
3namespace dokuwiki\plugin\dw2pdf\test;
4
5use dokuwiki\plugin\dw2pdf\src\MediaLinkResolver;
6use DokuWikiTest;
7
8/**
9 * Tests for translating Dokuwiki media references into local cached files.
10 *
11 * @group plugin_dw2pdf
12 * @group plugins
13 */
14class MediaLinkResolverTest extends DokuWikiTest
15{
16    private $resolver;
17
18    public function setUp(): void
19    {
20        parent::setUp();
21        $this->resolver = new MediaLinkResolver();
22    }
23
24    /**
25     * @return array<string, array{0:string,1:string,2:string}>
26     */
27    public static function resolveProvider(): array
28    {
29        global $conf;
30
31        return [
32            'internal fetch url' => [
33                DOKU_URL . 'lib/exe/fetch.php?media=wiki:dokuwiki-128.png',
34                $conf['mediadir'] . '/wiki/dokuwiki-128.png',
35                'image/png',
36            ],
37            'static local file' => [
38                DOKU_URL . 'lib/images/throbber.gif',
39                DOKU_INC . 'lib/images/throbber.gif',
40                'image/gif',
41            ],
42        ];
43    }
44
45    /**
46     * @dataProvider resolveProvider
47     */
48    public function testResolveReturnsLocalPathAndMime(string $input, string $expectedPath, string $expectedMime): void
49    {
50        $resolved = $this->resolver->resolve($input);
51
52        $this->assertNotNull($resolved);
53        $this->assertSame($expectedPath, $resolved['path']);
54        $this->assertSame($expectedMime, $resolved['mime']);
55        $this->assertFileExists($resolved['path']);
56    }
57
58    /**
59     * The resolver must support our dw2pdf:// pseudo scheme for temporary files.
60     */
61    public function testResolveDw2pdfScheme(): void
62    {
63        $temp = tempnam(sys_get_temp_dir(), 'dw2pdf');
64        if ($temp === false) {
65            $this->fail('Unable to create temp file for dw2pdf:// test');
66        }
67
68        $image = $temp . '.png';
69        if (!rename($temp, $image)) {
70            $this->fail('Unable to rename temp file for dw2pdf:// test');
71        }
72
73        $resolved = $this->resolver->resolve('dw2pdf://' . $image);
74
75        $this->assertNotNull($resolved);
76        $this->assertSame($image, $resolved['path']);
77        $this->assertSame('image/png', $resolved['mime']);
78
79        @unlink($image);
80    }
81
82    /**
83     * @group internet
84     */
85    public function testResolveFetchesExternalMedia(): void
86    {
87        global $conf;
88        $conf['fetchsize'] = 512 * 1024; // 512 KB
89
90        $external = 'https://php.net/images/php.gif';
91        $input = DOKU_URL . 'lib/exe/fetch.php?media=' . rawurlencode($external);
92        $resolved = $this->resolver->resolve($input);
93
94        if ($resolved === null) {
95            $this->markTestSkipped('External media fetching is not available in this environment.');
96        }
97
98        $this->assertNotNull($resolved);
99        $this->assertFileExists($resolved['path']);
100        $this->assertSame('image/gif', $resolved['mime']);
101        $this->assertSame(2523, filesize($resolved['path']));
102    }
103
104    /**
105     * Non-image payloads should never be returned to the PDF generator.
106     */
107    public function testResolveRejectsNonImages(): void
108    {
109        $resolved = $this->resolver->resolve(DOKU_URL . 'README');
110
111        $this->assertNull($resolved);
112    }
113
114    /**
115     * Resizing parameters from fetch.php should trigger scaled copies in cache.
116     */
117    public function testResolveAppliesResizeParameter(): void
118    {
119        global $conf;
120
121        $input = DOKU_URL . 'lib/exe/fetch.php?w=32&media=wiki:dokuwiki-128.png';
122        $original = $conf['mediadir'] . '/wiki/dokuwiki-128.png';
123        $resolved = $this->resolver->resolve($input);
124
125        $this->assertNotNull($resolved);
126        $this->assertNotSame($original, $resolved['path']);
127        $this->assertSame('image/png', $resolved['mime']);
128        $this->assertFileExists($resolved['path']);
129    }
130}
131