mirror of
https://github.com/miniflux/v2.git
synced 2024-09-06 03:19:20 +02:00
409 lines
16 KiB
Go
409 lines
16 KiB
Go
package html // import "github.com/tdewolff/minify/html"
|
|
|
|
import (
|
|
"bytes"
|
|
"fmt"
|
|
"io"
|
|
"io/ioutil"
|
|
"net/url"
|
|
"os"
|
|
"regexp"
|
|
"testing"
|
|
|
|
"github.com/tdewolff/minify"
|
|
"github.com/tdewolff/minify/css"
|
|
"github.com/tdewolff/minify/js"
|
|
"github.com/tdewolff/minify/json"
|
|
"github.com/tdewolff/minify/svg"
|
|
"github.com/tdewolff/minify/xml"
|
|
"github.com/tdewolff/test"
|
|
)
|
|
|
|
func TestHTML(t *testing.T) {
|
|
htmlTests := []struct {
|
|
html string
|
|
expected string
|
|
}{
|
|
{`html`, `html`},
|
|
{`<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML+RDFa 1.0//EN" "http://www.w3.org/MarkUp/DTD/xhtml-rdfa-1.dtd">`, `<!doctype html>`},
|
|
{`<!-- comment -->`, ``},
|
|
{`<style><!--\ncss\n--></style>`, `<style><!--\ncss\n--></style>`},
|
|
{`<style>&</style>`, `<style>&</style>`},
|
|
{`<html><head></head><body>x</body></html>`, `x`},
|
|
{`<meta http-equiv="content-type" content="text/html; charset=utf-8">`, `<meta charset=utf-8>`},
|
|
{`<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />`, `<meta charset=utf-8>`},
|
|
{`<meta name="keywords" content="a, b">`, `<meta name=keywords content=a,b>`},
|
|
{`<meta name="viewport" content="width = 996" />`, `<meta name=viewport content="width=996">`},
|
|
{`<span attr="test"></span>`, `<span attr=test></span>`},
|
|
{`<span attr='test'test'></span>`, `<span attr="test'test"></span>`},
|
|
{`<span attr="test"test"></span>`, `<span attr='test"test'></span>`},
|
|
{`<span attr='test""'&test'></span>`, `<span attr='test""'&test'></span>`},
|
|
{`<span attr="test/test"></span>`, `<span attr=test/test></span>`},
|
|
{`<span>&</span>`, `<span>&</span>`},
|
|
{`<span clear=none method=GET></span>`, `<span></span>`},
|
|
{`<span onload="javascript:x;"></span>`, `<span onload=x;></span>`},
|
|
{`<span selected="selected"></span>`, `<span selected></span>`},
|
|
{`<noscript><html><img id="x"></noscript>`, `<noscript><img id=x></noscript>`},
|
|
{`<body id="main"></body>`, `<body id=main>`},
|
|
{`<link href="data:text/plain, data">`, `<link href=data:,+data>`},
|
|
{`<svg width="100" height="100"><circle cx="50" cy="50" r="40" stroke="green" stroke-width="4" fill="yellow" /></svg>`, `<svg width="100" height="100"><circle cx="50" cy="50" r="40" stroke="green" stroke-width="4" fill="yellow" /></svg>`},
|
|
{`</span >`, `</span>`},
|
|
{`<meta name=viewport content="width=0.1, initial-scale=1.0 , maximum-scale=1000">`, `<meta name=viewport content="width=.1,initial-scale=1,maximum-scale=1e3">`},
|
|
{`<br/>`, `<br>`},
|
|
|
|
// increase coverage
|
|
{`<script style="css">js</script>`, `<script style=css>js</script>`},
|
|
{`<script type="application/javascript">js</script>`, `<script type=application/javascript>js</script>`},
|
|
{`<meta http-equiv="content-type" content="text/plain, text/html">`, `<meta http-equiv=content-type content=text/plain,text/html>`},
|
|
{`<meta http-equiv="content-style-type" content="text/less">`, `<meta http-equiv=content-style-type content=text/less>`},
|
|
{`<meta http-equiv="content-style-type" content="text/less; charset=utf-8">`, `<meta http-equiv=content-style-type content="text/less;charset=utf-8">`},
|
|
{`<meta http-equiv="content-script-type" content="application/js">`, `<meta http-equiv=content-script-type content=application/js>`},
|
|
{`<span attr=""></span>`, `<span attr></span>`},
|
|
{`<code>x</code>`, `<code>x</code>`},
|
|
{`<p></p><p></p>`, `<p><p>`},
|
|
{`<ul><li></li> <li></li></ul>`, `<ul><li><li></ul>`},
|
|
{`<p></p><a></a>`, `<p></p><a></a>`},
|
|
{`<p></p>x<a></a>`, `<p></p>x<a></a>`},
|
|
{`<span style=>`, `<span>`},
|
|
{`<button onclick=>`, `<button>`},
|
|
|
|
// whitespace
|
|
{`cats and dogs `, `cats and dogs`},
|
|
{` <div> <i> test </i> <b> test </b> </div> `, `<div><i>test</i> <b>test</b></div>`},
|
|
{`<strong>x </strong>y`, `<strong>x </strong>y`},
|
|
{`<strong>x </strong> y`, `<strong>x</strong> y`},
|
|
{"<strong>x </strong>\ny", "<strong>x</strong>\ny"},
|
|
{`<p>x </p>y`, `<p>x</p>y`},
|
|
{`x <p>y</p>`, `x<p>y`},
|
|
{` <!doctype html> <!--comment--> <html> <body><p></p></body></html> `, `<!doctype html><p>`}, // spaces before html and at the start of html are dropped
|
|
{`<p>x<br> y`, `<p>x<br>y`},
|
|
{`<p>x </b> <b> y`, `<p>x</b> <b>y`},
|
|
{`a <code></code> b`, `a <code></code>b`},
|
|
{`a <code>code</code> b`, `a <code>code</code> b`},
|
|
{`a <code> code </code> b`, `a <code>code</code> b`},
|
|
{`a <script>script</script> b`, `a <script>script</script>b`},
|
|
{"text\n<!--comment-->\ntext", "text\ntext"},
|
|
{"abc\n</body>\ndef", "abc\ndef"},
|
|
{"<x>\n<!--y-->\n</x>", "<x></x>"},
|
|
{"a <template> b </template> c", "a <template>b</template>c"},
|
|
|
|
// from HTML Minifier
|
|
{`<DIV TITLE="blah">boo</DIV>`, `<div title=blah>boo</div>`},
|
|
{"<p title\n\n\t =\n \"bar\">foo</p>", `<p title=bar>foo`},
|
|
{`<p class=" foo ">foo bar baz</p>`, `<p class=foo>foo bar baz`},
|
|
{`<input maxlength=" 5 ">`, `<input maxlength=5>`},
|
|
{`<input type="text">`, `<input>`},
|
|
{`<form method="get">`, `<form>`},
|
|
{`<script language="Javascript">alert(1)</script>`, `<script>alert(1)</script>`},
|
|
{`<script></script>`, ``},
|
|
{`<p onclick=" JavaScript: x">x</p>`, `<p onclick=" x">x`},
|
|
{`<span Selected="selected"></span>`, `<span selected></span>`},
|
|
{`<table><thead><tr><th>foo</th><th>bar</th></tr></thead><tfoot><tr><th>baz</th><th>qux</th></tr></tfoot><tbody><tr><td>boo</td><td>moo</td></tr></tbody></table>`,
|
|
`<table><thead><tr><th>foo<th>bar<tfoot><tr><th>baz<th>qux<tbody><tr><td>boo<td>moo</table>`},
|
|
{`<select><option>foo</option><option>bar</option></select>`, `<select><option>foo<option>bar</select>`},
|
|
{`<meta name="keywords" content="A, B">`, `<meta name=keywords content=A,B>`},
|
|
{`<iframe><html> <p> x </p> </html></iframe>`, `<iframe><p>x</iframe>`},
|
|
{`<math> ∫_a_^b^{f(x)<over>1+x} dx </math>`, `<math> ∫_a_^b^{f(x)<over>1+x} dx </math>`},
|
|
{`<script language="x" charset="x" src="y"></script>`, `<script src=y></script>`},
|
|
{`<style media="all">x</style>`, `<style>x</style>`},
|
|
{`<a id="abc" name="abc">y</a>`, `<a id=abc>y</a>`},
|
|
{`<a id="" value="">y</a>`, `<a value>y</a>`},
|
|
|
|
// from Kangax html-minfier
|
|
{`<span style="font-family:"Helvetica Neue","Helvetica",Helvetica,Arial,sans-serif">text</span>`, `<span style='font-family:"Helvetica Neue","Helvetica",Helvetica,Arial,sans-serif'>text</span>`},
|
|
|
|
// go-fuzz
|
|
{`<meta e t n content=ful><a b`, `<meta e t n content=ful><a b>`},
|
|
{`<img alt=a'b="">`, `<img alt='a'b=""'>`},
|
|
{`</b`, `</b`},
|
|
|
|
// bugs
|
|
{`<p>text</p><br>text`, `<p>text</p><br>text`}, // #122
|
|
{`text <img> text`, `text <img> text`}, // #89
|
|
{`text <progress></progress> text`, `text <progress></progress> text`}, // #89
|
|
{`<pre> <x> a b </x> </pre>`, `<pre> <x> a b </x> </pre>`}, // #82
|
|
{`<svg id="1"></svg>`, `<svg id="1"></svg>`}, // #67
|
|
}
|
|
|
|
m := minify.New()
|
|
m.AddFunc("text/html", Minify)
|
|
m.AddFunc("text/css", func(_ *minify.M, w io.Writer, r io.Reader, _ map[string]string) error {
|
|
_, err := io.Copy(w, r)
|
|
return err
|
|
})
|
|
m.AddFunc("text/javascript", func(_ *minify.M, w io.Writer, r io.Reader, _ map[string]string) error {
|
|
_, err := io.Copy(w, r)
|
|
return err
|
|
})
|
|
for _, tt := range htmlTests {
|
|
t.Run(tt.html, func(t *testing.T) {
|
|
r := bytes.NewBufferString(tt.html)
|
|
w := &bytes.Buffer{}
|
|
err := Minify(m, w, r, nil)
|
|
test.Minify(t, tt.html, err, w.String(), tt.expected)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestHTMLKeepEndTags(t *testing.T) {
|
|
htmlTests := []struct {
|
|
html string
|
|
expected string
|
|
}{
|
|
{`<p></p><p></p>`, `<p></p><p></p>`},
|
|
{`<ul><li></li><li></li></ul>`, `<ul><li></li><li></li></ul>`},
|
|
}
|
|
|
|
m := minify.New()
|
|
htmlMinifier := &Minifier{KeepEndTags: true}
|
|
for _, tt := range htmlTests {
|
|
t.Run(tt.html, func(t *testing.T) {
|
|
r := bytes.NewBufferString(tt.html)
|
|
w := &bytes.Buffer{}
|
|
err := htmlMinifier.Minify(m, w, r, nil)
|
|
test.Minify(t, tt.html, err, w.String(), tt.expected)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestHTMLKeepConditionalComments(t *testing.T) {
|
|
htmlTests := []struct {
|
|
html string
|
|
expected string
|
|
}{
|
|
{`<!--[if IE 6]> <b> </b> <![endif]-->`, `<!--[if IE 6]><b></b><![endif]-->`},
|
|
{`<![if IE 6]> <b> </b> <![endif]>`, `<![if IE 6]><b></b><![endif]>`},
|
|
}
|
|
|
|
m := minify.New()
|
|
htmlMinifier := &Minifier{KeepConditionalComments: true}
|
|
for _, tt := range htmlTests {
|
|
t.Run(tt.html, func(t *testing.T) {
|
|
r := bytes.NewBufferString(tt.html)
|
|
w := &bytes.Buffer{}
|
|
err := htmlMinifier.Minify(m, w, r, nil)
|
|
test.Minify(t, tt.html, err, w.String(), tt.expected)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestHTMLKeepWhitespace(t *testing.T) {
|
|
htmlTests := []struct {
|
|
html string
|
|
expected string
|
|
}{
|
|
{`cats and dogs `, `cats and dogs`},
|
|
{` <div> <i> test </i> <b> test </b> </div> `, `<div> <i> test </i> <b> test </b> </div>`},
|
|
{`<strong>x </strong>y`, `<strong>x </strong>y`},
|
|
{`<strong>x </strong> y`, `<strong>x </strong> y`},
|
|
{"<strong>x </strong>\ny", "<strong>x </strong>\ny"},
|
|
{`<p>x </p>y`, `<p>x </p>y`},
|
|
{`x <p>y</p>`, `x <p>y`},
|
|
{` <!doctype html> <!--comment--> <html> <body><p></p></body></html> `, `<!doctype html><p>`}, // spaces before html and at the start of html are dropped
|
|
{`<p>x<br> y`, `<p>x<br> y`},
|
|
{`<p>x </b> <b> y`, `<p>x </b> <b> y`},
|
|
{`a <code>code</code> b`, `a <code>code</code> b`},
|
|
{`a <code></code> b`, `a <code></code> b`},
|
|
{`a <script>script</script> b`, `a <script>script</script> b`},
|
|
{"text\n<!--comment-->\ntext", "text\ntext"},
|
|
{"text\n<!--comment-->text<!--comment--> text", "text\ntext text"},
|
|
{"abc\n</body>\ndef", "abc\ndef"},
|
|
{"<x>\n<!--y-->\n</x>", "<x>\n</x>"},
|
|
{"<style>lala{color:red}</style>", "<style>lala{color:red}</style>"},
|
|
}
|
|
|
|
m := minify.New()
|
|
htmlMinifier := &Minifier{KeepWhitespace: true}
|
|
for _, tt := range htmlTests {
|
|
t.Run(tt.html, func(t *testing.T) {
|
|
r := bytes.NewBufferString(tt.html)
|
|
w := &bytes.Buffer{}
|
|
err := htmlMinifier.Minify(m, w, r, nil)
|
|
test.Minify(t, tt.html, err, w.String(), tt.expected)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestHTMLURL(t *testing.T) {
|
|
htmlTests := []struct {
|
|
url string
|
|
html string
|
|
expected string
|
|
}{
|
|
{`http://example.com/`, `<a href=http://example.com/>link</a>`, `<a href=//example.com/>link</a>`},
|
|
{`https://example.com/`, `<a href=http://example.com/>link</a>`, `<a href=http://example.com/>link</a>`},
|
|
{`http://example.com/`, `<a href=https://example.com/>link</a>`, `<a href=https://example.com/>link</a>`},
|
|
{`https://example.com/`, `<a href=https://example.com/>link</a>`, `<a href=//example.com/>link</a>`},
|
|
{`http://example.com/`, `<a href=" http://example.com ">x</a>`, `<a href=//example.com>x</a>`},
|
|
{`http://example.com/`, `<link rel="stylesheet" type="text/css" href="http://example.com">`, `<link rel=stylesheet href=//example.com>`},
|
|
{`http://example.com/`, `<!doctype html> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en"> <head profile="http://dublincore.org/documents/dcq-html/"> <!-- Barlesque 2.75.0 --> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />`,
|
|
`<!doctype html><html xmlns=//www.w3.org/1999/xhtml xml:lang=en><head profile=//dublincore.org/documents/dcq-html/><meta charset=utf-8>`},
|
|
{`http://example.com/`, `<html xmlns="http://www.w3.org/1999/xhtml"></html>`, `<html xmlns=//www.w3.org/1999/xhtml>`},
|
|
{`https://example.com/`, `<html xmlns="http://www.w3.org/1999/xhtml"></html>`, `<html xmlns=http://www.w3.org/1999/xhtml>`},
|
|
{`http://example.com/`, `<html xmlns="https://www.w3.org/1999/xhtml"></html>`, `<html xmlns=https://www.w3.org/1999/xhtml>`},
|
|
{`https://example.com/`, `<html xmlns="https://www.w3.org/1999/xhtml"></html>`, `<html xmlns=//www.w3.org/1999/xhtml>`},
|
|
}
|
|
|
|
m := minify.New()
|
|
m.AddFunc("text/html", Minify)
|
|
for _, tt := range htmlTests {
|
|
t.Run(tt.url, func(t *testing.T) {
|
|
r := bytes.NewBufferString(tt.html)
|
|
w := &bytes.Buffer{}
|
|
m.URL, _ = url.Parse(tt.url)
|
|
err := Minify(m, w, r, nil)
|
|
test.Minify(t, tt.html, err, w.String(), tt.expected)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestSpecialTagClosing(t *testing.T) {
|
|
m := minify.New()
|
|
m.AddFunc("text/html", Minify)
|
|
m.AddFunc("text/css", func(_ *minify.M, w io.Writer, r io.Reader, _ map[string]string) error {
|
|
b, err := ioutil.ReadAll(r)
|
|
test.Error(t, err, nil)
|
|
test.String(t, string(b), "</script>")
|
|
_, err = w.Write(b)
|
|
return err
|
|
})
|
|
|
|
html := `<style></script></style>`
|
|
r := bytes.NewBufferString(html)
|
|
w := &bytes.Buffer{}
|
|
err := Minify(m, w, r, nil)
|
|
test.Minify(t, html, err, w.String(), html)
|
|
}
|
|
|
|
func TestReaderErrors(t *testing.T) {
|
|
r := test.NewErrorReader(0)
|
|
w := &bytes.Buffer{}
|
|
m := minify.New()
|
|
err := Minify(m, w, r, nil)
|
|
test.T(t, err, test.ErrPlain, "return error at first read")
|
|
}
|
|
|
|
func TestWriterErrors(t *testing.T) {
|
|
errorTests := []struct {
|
|
html string
|
|
n []int
|
|
}{
|
|
{`<!doctype>`, []int{0}},
|
|
{`text`, []int{0}},
|
|
{`<foo attr=val>`, []int{0, 1, 2, 3, 4, 5}},
|
|
{`</foo>`, []int{0}},
|
|
{`<style>x</style>`, []int{2}},
|
|
{`<textarea>x</textarea>`, []int{2}},
|
|
{`<code>x</code>`, []int{2}},
|
|
{`<pre>x</pre>`, []int{2}},
|
|
{`<svg>x</svg>`, []int{0}},
|
|
{`<math>x</math>`, []int{0}},
|
|
{`<!--[if IE 6]> text <![endif]-->`, []int{0, 1, 2}},
|
|
{`<![if IE 6]> text <![endif]>`, []int{0}},
|
|
}
|
|
|
|
m := minify.New()
|
|
m.Add("text/html", &Minifier{
|
|
KeepConditionalComments: true,
|
|
})
|
|
|
|
for _, tt := range errorTests {
|
|
for _, n := range tt.n {
|
|
t.Run(fmt.Sprint(tt.html, " ", tt.n), func(t *testing.T) {
|
|
r := bytes.NewBufferString(tt.html)
|
|
w := test.NewErrorWriter(n)
|
|
err := m.Minify("text/html", w, r)
|
|
test.T(t, err, test.ErrPlain)
|
|
})
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestMinifyErrors(t *testing.T) {
|
|
errorTests := []struct {
|
|
html string
|
|
err error
|
|
}{
|
|
{`<style>abc</style>`, test.ErrPlain},
|
|
{`<path style="abc"/>`, test.ErrPlain},
|
|
{`<path onclick="abc"/>`, test.ErrPlain},
|
|
{`<svg></svg>`, test.ErrPlain},
|
|
{`<math></math>`, test.ErrPlain},
|
|
}
|
|
|
|
m := minify.New()
|
|
m.AddFunc("text/css", func(_ *minify.M, w io.Writer, r io.Reader, _ map[string]string) error {
|
|
return test.ErrPlain
|
|
})
|
|
m.AddFunc("text/javascript", func(_ *minify.M, w io.Writer, r io.Reader, _ map[string]string) error {
|
|
return test.ErrPlain
|
|
})
|
|
m.AddFunc("image/svg+xml", func(_ *minify.M, w io.Writer, r io.Reader, _ map[string]string) error {
|
|
return test.ErrPlain
|
|
})
|
|
m.AddFunc("application/mathml+xml", func(_ *minify.M, w io.Writer, r io.Reader, _ map[string]string) error {
|
|
return test.ErrPlain
|
|
})
|
|
for _, tt := range errorTests {
|
|
t.Run(tt.html, func(t *testing.T) {
|
|
r := bytes.NewBufferString(tt.html)
|
|
w := &bytes.Buffer{}
|
|
err := Minify(m, w, r, nil)
|
|
test.T(t, err, tt.err)
|
|
})
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////
|
|
|
|
func ExampleMinify() {
|
|
m := minify.New()
|
|
m.AddFunc("text/html", Minify)
|
|
m.AddFunc("text/css", css.Minify)
|
|
m.AddFunc("text/javascript", js.Minify)
|
|
m.AddFunc("image/svg+xml", svg.Minify)
|
|
m.AddFuncRegexp(regexp.MustCompile("[/+]json$"), json.Minify)
|
|
m.AddFuncRegexp(regexp.MustCompile("[/+]xml$"), xml.Minify)
|
|
|
|
// set URL to minify link locations too
|
|
m.URL, _ = url.Parse("https://www.example.com/")
|
|
if err := m.Minify("text/html", os.Stdout, os.Stdin); err != nil {
|
|
panic(err)
|
|
}
|
|
}
|
|
|
|
func ExampleMinify_options() {
|
|
m := minify.New()
|
|
m.Add("text/html", &Minifier{
|
|
KeepDefaultAttrVals: true,
|
|
KeepWhitespace: true,
|
|
})
|
|
|
|
if err := m.Minify("text/html", os.Stdout, os.Stdin); err != nil {
|
|
panic(err)
|
|
}
|
|
}
|
|
|
|
func ExampleMinify_reader() {
|
|
b := bytes.NewReader([]byte("<html><body><h1>Example</h1></body></html>"))
|
|
|
|
m := minify.New()
|
|
m.Add("text/html", &Minifier{})
|
|
|
|
r := m.Reader("text/html", b)
|
|
if _, err := io.Copy(os.Stdout, r); err != nil {
|
|
panic(err)
|
|
}
|
|
// Output: <h1>Example</h1>
|
|
}
|
|
|
|
func ExampleMinify_writer() {
|
|
m := minify.New()
|
|
m.Add("text/html", &Minifier{})
|
|
|
|
w := m.Writer("text/html", os.Stdout)
|
|
w.Write([]byte("<html><body><h1>Example</h1></body></html>"))
|
|
w.Close()
|
|
// Output: <h1>Example</h1>
|
|
}
|