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| author | Daniel Baumann <daniel@debian.org> | 2024-10-18 20:33:49 +0200 |
|---|---|---|
| committer | Daniel Baumann <daniel@debian.org> | 2024-10-18 20:33:49 +0200 |
| commit | dd136858f1ea40ad3c94191d647487fa4f31926c (patch) | |
| tree | 58fec94a7b2a12510c9664b21793f1ed560c6518 /modules/typesniffer/typesniffer_test.go | |
| parent | Initial commit. (diff) | |
| download | forgejo-upstream.tar.xz forgejo-upstream.zip | |
Adding upstream version 9.0.0.upstream/9.0.0upstreamdebian
Signed-off-by: Daniel Baumann <daniel@debian.org>
Diffstat (limited to 'modules/typesniffer/typesniffer_test.go')
| -rw-r--r-- | modules/typesniffer/typesniffer_test.go | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/modules/typesniffer/typesniffer_test.go b/modules/typesniffer/typesniffer_test.go new file mode 100644 index 0000000..f6fa07e --- /dev/null +++ b/modules/typesniffer/typesniffer_test.go @@ -0,0 +1,137 @@ +// Copyright 2021 The Gitea Authors. All rights reserved. +// SPDX-License-Identifier: MIT + +package typesniffer + +import ( + "bytes" + "encoding/base64" + "encoding/hex" + "strings" + "testing" + + "github.com/stretchr/testify/assert" + "github.com/stretchr/testify/require" +) + +func TestDetectContentTypeLongerThanSniffLen(t *testing.T) { + // Pre-condition: Shorter than sniffLen detects SVG. + assert.Equal(t, "image/svg+xml", DetectContentType([]byte(`<!-- Comment --><svg></svg>`)).contentType) + // Longer than sniffLen detects something else. + assert.NotEqual(t, "image/svg+xml", DetectContentType([]byte(`<!-- `+strings.Repeat("x", sniffLen)+` --><svg></svg>`)).contentType) +} + +func TestIsTextFile(t *testing.T) { + assert.True(t, DetectContentType([]byte{}).IsText()) + assert.True(t, DetectContentType([]byte("lorem ipsum")).IsText()) +} + +func TestIsSvgImage(t *testing.T) { + assert.True(t, DetectContentType([]byte("<svg></svg>")).IsSvgImage()) + assert.True(t, DetectContentType([]byte(" <svg></svg>")).IsSvgImage()) + assert.True(t, DetectContentType([]byte(`<svg width="100"></svg>`)).IsSvgImage()) + assert.True(t, DetectContentType([]byte(`<?xml version="1.0" encoding="UTF-8"?><svg></svg>`)).IsSvgImage()) + assert.True(t, DetectContentType([]byte(`<!-- Comment --> + <svg></svg>`)).IsSvgImage()) + assert.True(t, DetectContentType([]byte(`<!-- Multiple --> + <!-- Comments --> + <svg></svg>`)).IsSvgImage()) + assert.True(t, DetectContentType([]byte(`<!-- Multiline + Comment --> + <svg></svg>`)).IsSvgImage()) + assert.True(t, DetectContentType([]byte(`<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1 Basic//EN" + "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11-basic.dtd"> + <svg></svg>`)).IsSvgImage()) + assert.True(t, DetectContentType([]byte(`<?xml version="1.0" encoding="UTF-8"?> + <!-- Comment --> + <svg></svg>`)).IsSvgImage()) + assert.True(t, DetectContentType([]byte(`<?xml version="1.0" encoding="UTF-8"?> + <!-- Multiple --> + <!-- Comments --> + <svg></svg>`)).IsSvgImage()) + assert.True(t, DetectContentType([]byte(`<?xml version="1.0" encoding="UTF-8"?> + <!-- Multiline + Comment --> + <svg></svg>`)).IsSvgImage()) + assert.True(t, DetectContentType([]byte(`<?xml version="1.0" encoding="UTF-8"?> + <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> + <!-- Multiline + Comment --> + <svg></svg>`)).IsSvgImage()) + + // the DetectContentType should work for incomplete data, because only beginning bytes are used for detection + assert.True(t, DetectContentType([]byte(`<svg>....`)).IsSvgImage()) + + assert.False(t, DetectContentType([]byte{}).IsSvgImage()) + assert.False(t, DetectContentType([]byte("svg")).IsSvgImage()) + assert.False(t, DetectContentType([]byte("<svgfoo></svgfoo>")).IsSvgImage()) + assert.False(t, DetectContentType([]byte("text<svg></svg>")).IsSvgImage()) + assert.False(t, DetectContentType([]byte("<html><body><svg></svg></body></html>")).IsSvgImage()) + assert.False(t, DetectContentType([]byte(`<script>"<svg></svg>"</script>`)).IsSvgImage()) + assert.False(t, DetectContentType([]byte(`<!-- <svg></svg> inside comment --> + <foo></foo>`)).IsSvgImage()) + assert.False(t, DetectContentType([]byte(`<?xml version="1.0" encoding="UTF-8"?> + <!-- <svg></svg> inside comment --> + <foo></foo>`)).IsSvgImage()) + + assert.False(t, DetectContentType([]byte(` +<!-- comment1 --> +<div> + <!-- comment2 --> + <svg></svg> +</div> +`)).IsSvgImage()) + + assert.False(t, DetectContentType([]byte(` +<!-- comment1 +--> +<div> + <!-- comment2 +--> + <svg></svg> +</div> +`)).IsSvgImage()) + assert.False(t, DetectContentType([]byte(`<html><body><!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"><svg></svg></body></html>`)).IsSvgImage()) + assert.False(t, DetectContentType([]byte(`<html><body><?xml version="1.0" encoding="UTF-8"?><svg></svg></body></html>`)).IsSvgImage()) +} + +func TestIsPDF(t *testing.T) { + pdf, _ := base64.StdEncoding.DecodeString("JVBERi0xLjYKJcOkw7zDtsOfCjIgMCBvYmoKPDwvTGVuZ3RoIDMgMCBSL0ZpbHRlci9GbGF0ZURlY29kZT4+CnN0cmVhbQp4nF3NPwsCMQwF8D2f4s2CNYk1baF0EHRwOwg4iJt/NsFb/PpevUE4Mjwe") + assert.True(t, DetectContentType(pdf).IsPDF()) + assert.False(t, DetectContentType([]byte("plain text")).IsPDF()) +} + +func TestIsVideo(t *testing.T) { + mp4, _ := base64.StdEncoding.DecodeString("AAAAGGZ0eXBtcDQyAAAAAGlzb21tcDQyAAEI721vb3YAAABsbXZoZAAAAADaBlwX2gZcFwAAA+gA") + assert.True(t, DetectContentType(mp4).IsVideo()) + assert.False(t, DetectContentType([]byte("plain text")).IsVideo()) +} + +func TestIsAudio(t *testing.T) { + mp3, _ := base64.StdEncoding.DecodeString("SUQzBAAAAAABAFRYWFgAAAASAAADbWFqb3JfYnJhbmQAbXA0MgBUWFhYAAAAEQAAA21pbm9yX3Zl") + assert.True(t, DetectContentType(mp3).IsAudio()) + assert.False(t, DetectContentType([]byte("plain text")).IsAudio()) + + assert.True(t, DetectContentType([]byte("ID3Toy\000")).IsAudio()) + assert.True(t, DetectContentType([]byte("ID3Toy\n====\t* hi 🌞, ...")).IsText()) // test ID3 tag for plain text + assert.True(t, DetectContentType([]byte("ID3Toy\n====\t* hi 🌞, ..."+"🌛"[0:2])).IsText()) // test ID3 tag with incomplete UTF8 char +} + +func TestDetectContentTypeFromReader(t *testing.T) { + mp3, _ := base64.StdEncoding.DecodeString("SUQzBAAAAAABAFRYWFgAAAASAAADbWFqb3JfYnJhbmQAbXA0MgBUWFhYAAAAEQAAA21pbm9yX3Zl") + st, err := DetectContentTypeFromReader(bytes.NewReader(mp3)) + require.NoError(t, err) + assert.True(t, st.IsAudio()) +} + +func TestDetectContentTypeOgg(t *testing.T) { + oggAudio, _ := hex.DecodeString("4f67675300020000000000000000352f0000000000007dc39163011e01766f72626973000000000244ac0000000000000071020000000000b8014f6767530000") + st, err := DetectContentTypeFromReader(bytes.NewReader(oggAudio)) + require.NoError(t, err) + assert.True(t, st.IsAudio()) + + oggVideo, _ := hex.DecodeString("4f676753000200000000000000007d9747ef000000009b59daf3012a807468656f7261030201001e00110001e000010e00020000001e00000001000001000001") + st, err = DetectContentTypeFromReader(bytes.NewReader(oggVideo)) + require.NoError(t, err) + assert.True(t, st.IsVideo()) +} |