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Add Image Diff for SVG files (#14867)

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* Added type sniffer.

* Switched content detection from base to typesniffer.

* Added GuessContentType to Blob.

* Moved image info logic to client.
Added support for SVG images in diff.

* Restore old blocked svg behaviour.

* Added missing image formats.

* Execute image diff only when container is visible.

* add margin to spinner

* improve BIN tag on image diffs

* Default to render view.

* Show image diff on incomplete diff.

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Lauris BH <lauris@nix.lv>
This commit is contained in:
KN4CK3R 2021-06-05 14:32:19 +02:00 • committed by GitHub
parent 7979c3654e
commit 8e262104c2
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GPG key ID: 4AEE18F83AFDEB23
19 changed files with 449 additions and 441 deletions
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92
modules/base/tool_test.go
View file

@ -5,7 +5,6 @@
package base
import (
"encoding/base64"
"os"
"testing"
"time"
@ -246,97 +245,6 @@ func TestIsLetter(t *testing.T) {
assert.False(t, IsLetter(0x93))
}
func TestDetectContentTypeLongerThanSniffLen(t *testing.T) {
// Pre-condition: Shorter than sniffLen detects SVG.
assert.Equal(t, "image/svg+xml", DetectContentType([]byte(`<!-- Comment --><svg></svg>`)))
// Longer than sniffLen detects something else.
assert.Equal(t, "text/plain; charset=utf-8", DetectContentType([]byte(`<!--
Comment Comment Comment Comment Comment Comment Comment Comment Comment Comment
Comment Comment Comment Comment Comment Comment Comment Comment Comment Comment
Comment Comment Comment Comment Comment Comment Comment Comment Comment Comment
Comment Comment Comment Comment Comment Comment Comment Comment Comment Comment
Comment Comment Comment Comment Comment Comment Comment Comment Comment Comment
Comment Comment Comment Comment Comment Comment Comment Comment Comment Comment
Comment Comment Comment --><svg></svg>`)))
}
// IsRepresentableAsText
func TestIsTextFile(t *testing.T) {
assert.True(t, IsTextFile([]byte{}))
assert.True(t, IsTextFile([]byte("lorem ipsum")))
}
func TestIsImageFile(t *testing.T) {
png, _ := base64.StdEncoding.DecodeString("iVBORw0KGgoAAAANSUhEUgAAAAoAAAAKCAYAAACNMs+9AAAAG0lEQVQYlWN4+vTpf3SMDTAMBYXYBLFpHgoKAeiOf0SGE9kbAAAAAElFTkSuQmCC")
assert.True(t, IsImageFile(png))
assert.False(t, IsImageFile([]byte("plain text")))
}
func TestIsSVGImageFile(t *testing.T) {
assert.True(t, IsSVGImageFile([]byte("<svg></svg>")))
assert.True(t, IsSVGImageFile([]byte(" <svg></svg>")))
assert.True(t, IsSVGImageFile([]byte(`<svg width="100"></svg>`)))
assert.True(t, IsSVGImageFile([]byte("<svg/>")))
assert.True(t, IsSVGImageFile([]byte(`<?xml version="1.0" encoding="UTF-8"?><svg></svg>`)))
assert.True(t, IsSVGImageFile([]byte(`<!-- Comment -->
<svg></svg>`)))
assert.True(t, IsSVGImageFile([]byte(`<!-- Multiple -->
<!-- Comments -->
<svg></svg>`)))
assert.True(t, IsSVGImageFile([]byte(`<!-- Multiline
Comment -->
<svg></svg>`)))
assert.True(t, IsSVGImageFile([]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>`)))
assert.True(t, IsSVGImageFile([]byte(`<?xml version="1.0" encoding="UTF-8"?>
<!-- Comment -->
<svg></svg>`)))
assert.True(t, IsSVGImageFile([]byte(`<?xml version="1.0" encoding="UTF-8"?>
<!-- Multiple -->
<!-- Comments -->
<svg></svg>`)))
assert.True(t, IsSVGImageFile([]byte(`<?xml version="1.0" encoding="UTF-8"?>
<!-- Multline
Comment -->
<svg></svg>`)))
assert.True(t, IsSVGImageFile([]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">
<!-- Multline
Comment -->
<svg></svg>`)))
assert.False(t, IsSVGImageFile([]byte{}))
assert.False(t, IsSVGImageFile([]byte("svg")))
assert.False(t, IsSVGImageFile([]byte("<svgfoo></svgfoo>")))
assert.False(t, IsSVGImageFile([]byte("text<svg></svg>")))
assert.False(t, IsSVGImageFile([]byte("<html><body><svg></svg></body></html>")))
assert.False(t, IsSVGImageFile([]byte(`<script>"<svg></svg>"</script>`)))
assert.False(t, IsSVGImageFile([]byte(`<!-- <svg></svg> inside comment -->
<foo></foo>`)))
assert.False(t, IsSVGImageFile([]byte(`<?xml version="1.0" encoding="UTF-8"?>
<!-- <svg></svg> inside comment -->
<foo></foo>`)))
}
func TestIsPDFFile(t *testing.T) {
pdf, _ := base64.StdEncoding.DecodeString("JVBERi0xLjYKJcOkw7zDtsOfCjIgMCBvYmoKPDwvTGVuZ3RoIDMgMCBSL0ZpbHRlci9GbGF0ZURlY29kZT4+CnN0cmVhbQp4nF3NPwsCMQwF8D2f4s2CNYk1baF0EHRwOwg4iJt/NsFb/PpevUE4Mjwe")
assert.True(t, IsPDFFile(pdf))
assert.False(t, IsPDFFile([]byte("plain text")))
}
func TestIsVideoFile(t *testing.T) {
mp4, _ := base64.StdEncoding.DecodeString("AAAAGGZ0eXBtcDQyAAAAAGlzb21tcDQyAAEI721vb3YAAABsbXZoZAAAAADaBlwX2gZcFwAAA+gA")
assert.True(t, IsVideoFile(mp4))
assert.False(t, IsVideoFile([]byte("plain text")))
}
func TestIsAudioFile(t *testing.T) {
mp3, _ := base64.StdEncoding.DecodeString("SUQzBAAAAAABAFRYWFgAAAASAAADbWFqb3JfYnJhbmQAbXA0MgBUWFhYAAAAEQAAA21pbm9yX3Zl")
assert.True(t, IsAudioFile(mp3))
assert.False(t, IsAudioFile([]byte("plain text")))
}
// TODO: Test EntryIcon
func TestSetupGiteaRoot(t *testing.T) {