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-rw-r--r--internal/text/common.go33
-rw-r--r--internal/text/common_test.go46
-rw-r--r--internal/text/link_test.go20
-rw-r--r--internal/text/markdown.go6
-rw-r--r--internal/text/markdown_test.go32
-rw-r--r--internal/text/minify.go39
-rw-r--r--internal/text/plain.go10
-rw-r--r--internal/text/plain_test.go36
-rw-r--r--internal/text/sanitize.go7
9 files changed, 70 insertions, 159 deletions
diff --git a/internal/text/common.go b/internal/text/common.go
index 9ed3fb06f..005f9dfe1 100644
--- a/internal/text/common.go
+++ b/internal/text/common.go
@@ -21,7 +21,6 @@ package text
import (
"bytes"
"context"
- "html"
"strings"
"unicode"
@@ -30,38 +29,6 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/regexes"
)
-// preformat contains some common logic for making a string ready for formatting, which should be used for all user-input text.
-func preformat(in string) string {
- // do some preformatting of the text
-
- // 1. unescape everything that might be html escaped
- s := html.UnescapeString(in)
-
- // 2. trim leading or trailing whitespace
- s = strings.TrimSpace(s)
- return s
-}
-
-// postformat contains some common logic for html sanitization of text, wrapping elements, and trimming newlines and whitespace
-func postformat(in string) string {
- // do some postformatting of the text
-
- // 1. sanitize html to remove potentially dangerous elements
- s := SanitizeHTML(in)
-
- // 2. the sanitize step tends to escape characters inside codeblocks, which is behavior we don't want, so unescape everything again
- s = html.UnescapeString(s)
-
- // 3. minify html to remove any trailing newlines, spaces, unnecessary elements, etc etc
- mini, err := MinifyHTML(s)
- if err != nil {
- // if the minify failed, just return what we have
- return s
- }
- // return minified version of the html
- return mini
-}
-
func (f *formatter) ReplaceTags(ctx context.Context, in string, tags []*gtsmodel.Tag) string {
return regexes.ReplaceAllStringFunc(regexes.HashtagFinder, in, func(match string, buf *bytes.Buffer) string {
// we have a match
diff --git a/internal/text/common_test.go b/internal/text/common_test.go
index 5e8f05b30..48f5240d2 100644
--- a/internal/text/common_test.go
+++ b/internal/text/common_test.go
@@ -28,44 +28,14 @@ import (
)
const (
- replaceMentionsString = `Another test @foss_satan@fossbros-anonymous.io
-
-#Hashtag
-
-Text`
- replaceMentionsExpected = `Another test <span class="h-card"><a href="http://fossbros-anonymous.io/@foss_satan" class="u-url mention">@<span>foss_satan</span></a></span>
-
-#Hashtag
-
-Text`
-
- replaceHashtagsExpected = `Another test @foss_satan@fossbros-anonymous.io
-
-<a href="http://localhost:8080/tags/Hashtag" class="mention hashtag" rel="tag">#<span>Hashtag</span></a>
-
-Text`
-
- replaceHashtagsAfterMentionsExpected = `Another test <span class="h-card"><a href="http://fossbros-anonymous.io/@foss_satan" class="u-url mention">@<span>foss_satan</span></a></span>
-
-<a href="http://localhost:8080/tags/Hashtag" class="mention hashtag" rel="tag">#<span>Hashtag</span></a>
-
-Text`
-
- replaceMentionsWithLinkString = `Another test @foss_satan@fossbros-anonymous.io
-
-http://fossbros-anonymous.io/@foss_satan/statuses/6675ee73-fccc-4562-a46a-3e8cd9798060`
-
- replaceMentionsWithLinkStringExpected = `Another test <span class="h-card"><a href="http://fossbros-anonymous.io/@foss_satan" class="u-url mention">@<span>foss_satan</span></a></span>
-
-http://fossbros-anonymous.io/@foss_satan/statuses/6675ee73-fccc-4562-a46a-3e8cd9798060`
-
- replaceMentionsWithLinkSelfString = `Mentioning myself: @the_mighty_zork
-
-and linking to my own status: https://localhost:8080/@the_mighty_zork/statuses/01FGXKJRX2PMERJQ9EQF8Y6HCR`
-
- replaceMemtionsWithLinkSelfExpected = `Mentioning myself: <span class="h-card"><a href="http://localhost:8080/@the_mighty_zork" class="u-url mention">@<span>the_mighty_zork</span></a></span>
-
-and linking to my own status: https://localhost:8080/@the_mighty_zork/statuses/01FGXKJRX2PMERJQ9EQF8Y6HCR`
+ replaceMentionsString = "Another test @foss_satan@fossbros-anonymous.io\n\n#Hashtag\n\nText"
+ replaceMentionsExpected = "Another test <span class=\"h-card\"><a href=\"http://fossbros-anonymous.io/@foss_satan\" class=\"u-url mention\">@<span>foss_satan</span></a></span>\n\n#Hashtag\n\nText"
+ replaceHashtagsExpected = "Another test @foss_satan@fossbros-anonymous.io\n\n<a href=\"http://localhost:8080/tags/Hashtag\" class=\"mention hashtag\" rel=\"tag\">#<span>Hashtag</span></a>\n\nText"
+ replaceHashtagsAfterMentionsExpected = "Another test <span class=\"h-card\"><a href=\"http://fossbros-anonymous.io/@foss_satan\" class=\"u-url mention\">@<span>foss_satan</span></a></span>\n\n<a href=\"http://localhost:8080/tags/Hashtag\" class=\"mention hashtag\" rel=\"tag\">#<span>Hashtag</span></a>\n\nText"
+ replaceMentionsWithLinkString = "Another test @foss_satan@fossbros-anonymous.io\n\nhttp://fossbros-anonymous.io/@foss_satan/statuses/6675ee73-fccc-4562-a46a-3e8cd9798060"
+ replaceMentionsWithLinkStringExpected = "Another test <span class=\"h-card\"><a href=\"http://fossbros-anonymous.io/@foss_satan\" class=\"u-url mention\">@<span>foss_satan</span></a></span>\n\nhttp://fossbros-anonymous.io/@foss_satan/statuses/6675ee73-fccc-4562-a46a-3e8cd9798060"
+ replaceMentionsWithLinkSelfString = "Mentioning myself: @the_mighty_zork\n\nand linking to my own status: https://localhost:8080/@the_mighty_zork/statuses/01FGXKJRX2PMERJQ9EQF8Y6HCR"
+ replaceMemtionsWithLinkSelfExpected = "Mentioning myself: <span class=\"h-card\"><a href=\"http://localhost:8080/@the_mighty_zork\" class=\"u-url mention\">@<span>the_mighty_zork</span></a></span>\n\nand linking to my own status: https://localhost:8080/@the_mighty_zork/statuses/01FGXKJRX2PMERJQ9EQF8Y6HCR"
)
type CommonTestSuite struct {
diff --git a/internal/text/link_test.go b/internal/text/link_test.go
index 24484e02d..e50a8dd69 100644
--- a/internal/text/link_test.go
+++ b/internal/text/link_test.go
@@ -71,16 +71,16 @@ type LinkTestSuite struct {
func (suite *LinkTestSuite) TestParseSimple() {
f := suite.formatter.FromPlain(context.Background(), simple, nil, nil)
- assert.Equal(suite.T(), simpleExpected, f)
+ suite.Equal(simpleExpected, f)
}
func (suite *LinkTestSuite) TestParseURLsFromText1() {
urls := text.FindLinks(text1)
- assert.Equal(suite.T(), "https://example.org/link/to/something#fragment", urls[0].String())
- assert.Equal(suite.T(), "http://test.example.org?q=bahhhhhhhhhhhh", urls[1].String())
- assert.Equal(suite.T(), "https://another.link.example.org/with/a/pretty/long/path/at/the/end/of/it", urls[2].String())
- assert.Equal(suite.T(), "https://example.orghttps://google.com", urls[3].String())
+ suite.Equal("https://example.org/link/to/something#fragment", urls[0].String())
+ suite.Equal("http://test.example.org?q=bahhhhhhhhhhhh", urls[1].String())
+ suite.Equal("https://another.link.example.org/with/a/pretty/long/path/at/the/end/of/it", urls[2].String())
+ suite.Equal("https://example.orghttps://google.com", urls[3].String())
}
func (suite *LinkTestSuite) TestParseURLsFromText2() {
@@ -99,7 +99,7 @@ func (suite *LinkTestSuite) TestParseURLsFromText3() {
func (suite *LinkTestSuite) TestReplaceLinksFromText1() {
replaced := suite.formatter.ReplaceLinks(context.Background(), text1)
- assert.Equal(suite.T(), `
+ suite.Equal(`
This is a text with some links in it. Here's link number one: <a href="https://example.org/link/to/something#fragment" rel="noopener">example.org/link/to/something#fragment</a>
Here's link number two: <a href="http://test.example.org?q=bahhhhhhhhhhhh" rel="noopener">test.example.org?q=bahhhhhhhhhhhh</a>
@@ -114,7 +114,7 @@ really.cool.website <-- this one shouldn't be parsed as a link because it doesn'
func (suite *LinkTestSuite) TestReplaceLinksFromText2() {
replaced := suite.formatter.ReplaceLinks(context.Background(), text2)
- assert.Equal(suite.T(), `
+ suite.Equal(`
this is one link: <a href="https://example.org" rel="noopener">example.org</a>
this is the same link again: <a href="https://example.org" rel="noopener">example.org</a>
@@ -126,14 +126,14 @@ these should be deduplicated
func (suite *LinkTestSuite) TestReplaceLinksFromText3() {
// we know mailto links won't be replaced with hrefs -- we only accept https and http
replaced := suite.formatter.ReplaceLinks(context.Background(), text3)
- assert.Equal(suite.T(), `
+ suite.Equal(`
here's a mailto link: mailto:whatever@test.org
`, replaced)
}
func (suite *LinkTestSuite) TestReplaceLinksFromText4() {
replaced := suite.formatter.ReplaceLinks(context.Background(), text4)
- assert.Equal(suite.T(), `
+ suite.Equal(`
two similar links:
<a href="https://example.org" rel="noopener">example.org</a>
@@ -145,7 +145,7 @@ two similar links:
func (suite *LinkTestSuite) TestReplaceLinksFromText5() {
// we know this one doesn't work properly, which is why html should always be sanitized before being passed into the ReplaceLinks function
replaced := suite.formatter.ReplaceLinks(context.Background(), text5)
- assert.Equal(suite.T(), `
+ suite.Equal(`
what happens when we already have a link within an href?
<a href="<a href="https://example.org" rel="noopener">example.org</a>"><a href="https://example.org" rel="noopener">example.org</a></a>
diff --git a/internal/text/markdown.go b/internal/text/markdown.go
index 01238954f..a5c62f23f 100644
--- a/internal/text/markdown.go
+++ b/internal/text/markdown.go
@@ -26,13 +26,11 @@ import (
)
func (f *formatter) FromMarkdown(ctx context.Context, md string, mentions []*gtsmodel.Mention, tags []*gtsmodel.Tag) string {
- content := preformat(md)
-
// do the markdown parsing *first*
- contentBytes := blackfriday.Run([]byte(content))
+ contentBytes := blackfriday.Run([]byte(md))
// format tags nicely
- content = f.ReplaceTags(ctx, string(contentBytes), tags)
+ content := f.ReplaceTags(ctx, string(contentBytes), tags)
// format mentions nicely
content = f.ReplaceMentions(ctx, content, mentions)
diff --git a/internal/text/markdown_test.go b/internal/text/markdown_test.go
index 111cfe473..74a18a685 100644
--- a/internal/text/markdown_test.go
+++ b/internal/text/markdown_test.go
@@ -44,15 +44,19 @@ that was some JSON :)
`
const (
- simpleMarkdown = "# Title\n\nHere's a simple text in markdown.\n\nHere's a [link](https://example.org)."
- simpleMarkdownExpected = "<h1>Title</h1>\n\n<p>Here’s a simple text in markdown.</p>\n\n<p>Here’s a <a href=\"https://example.org\" rel=\"nofollow noreferrer noopener\" target=\"_blank\">link</a>.</p>\n"
- withCodeBlockExpected = "<h1>Title</h1>\n\n<p>Below is some JSON.</p>\n\n<pre><code class=\"language-json\">{\n &#34;key&#34;: &#34;value&#34;,\n &#34;another_key&#34;: [\n &#34;value1&#34;,\n &#34;value2&#34;\n ]\n}\n</code></pre>\n\n<p>that was some JSON :)</p>\n"
- withInlineCode = "`Nobody tells you about the <code><del>SECRET CODE</del></code>, do they?`"
- withInlineCodeExpected = "<p><code>Nobody tells you about the &lt;code&gt;&lt;del&gt;SECRET CODE&lt;/del&gt;&lt;/code&gt;, do they?</code></p>\n"
- withInlineCode2 = "`Nobody tells you about the </code><del>SECRET CODE</del><code>, do they?`"
- withInlineCode2Expected = "<p><code>Nobody tells you about the &lt;/code&gt;&lt;del&gt;SECRET CODE&lt;/del&gt;&lt;code&gt;, do they?</code></p>\n"
- withHashtag = "# Title\n\nhere's a simple status that uses hashtag #Hashtag!"
- withHashtagExpected = "<h1>Title</h1>\n\n<p>here’s a simple status that uses hashtag <a href=\"http://localhost:8080/tags/Hashtag\" class=\"mention hashtag\" rel=\"tag nofollow noreferrer noopener\" target=\"_blank\">#<span>Hashtag</span></a>!</p>\n"
+ simpleMarkdown = "# Title\n\nHere's a simple text in markdown.\n\nHere's a [link](https://example.org)."
+ simpleMarkdownExpected = "<h1>Title</h1>\n\n<p>Here’s a simple text in markdown.</p>\n\n<p>Here’s a <a href=\"https://example.org\" rel=\"nofollow noreferrer noopener\" target=\"_blank\">link</a>.</p>\n"
+ withCodeBlockExpected = "<h1>Title</h1>\n\n<p>Below is some JSON.</p>\n\n<pre><code class=\"language-json\">{\n &#34;key&#34;: &#34;value&#34;,\n &#34;another_key&#34;: [\n &#34;value1&#34;,\n &#34;value2&#34;\n ]\n}\n</code></pre>\n\n<p>that was some JSON :)</p>\n"
+ withInlineCode = "`Nobody tells you about the <code><del>SECRET CODE</del></code>, do they?`"
+ withInlineCodeExpected = "<p><code>Nobody tells you about the &lt;code&gt;&lt;del&gt;SECRET CODE&lt;/del&gt;&lt;/code&gt;, do they?</code></p>\n"
+ withInlineCode2 = "`Nobody tells you about the </code><del>SECRET CODE</del><code>, do they?`"
+ withInlineCode2Expected = "<p><code>Nobody tells you about the &lt;/code&gt;&lt;del&gt;SECRET CODE&lt;/del&gt;&lt;code&gt;, do they?</code></p>\n"
+ withHashtag = "# Title\n\nhere's a simple status that uses hashtag #Hashtag!"
+ withHashtagExpected = "<h1>Title</h1>\n\n<p>here’s a simple status that uses hashtag <a href=\"http://localhost:8080/tags/Hashtag\" class=\"mention hashtag\" rel=\"tag nofollow noreferrer noopener\" target=\"_blank\">#<span>Hashtag</span></a>!</p>\n"
+ mdWithHTML = "# Title\n\nHere's a simple text in markdown.\n\nHere's a <a href=\"https://example.org\">link</a>.\n\nHere's an image: <img src=\"https://gts.superseriousbusiness.org/assets/logo.png\" alt=\"The GoToSocial sloth logo.\" width=\"500\" height=\"600\">"
+ mdWithHTMLExpected = "<h1>Title</h1>\n\n<p>Here’s a simple text in markdown.</p>\n\n<p>Here’s a <a href=\"https://example.org\" rel=\"nofollow noreferrer noopener\" target=\"_blank\">link</a>.</p>\n\n<p>Here’s an image: <img src=\"https://gts.superseriousbusiness.org/assets/logo.png\" alt=\"The GoToSocial sloth logo.\" width=\"500\" height=\"600\" crossorigin=\"anonymous\"></p>\n"
+ mdWithCheekyHTML = "# Title\n\nHere's a simple text in markdown.\n\nHere's a cheeky little script: <script>alert(ahhhh)</script>"
+ mdWithCheekyHTMLExpected = "<h1>Title</h1>\n\n<p>Here’s a simple text in markdown.</p>\n\n<p>Here’s a cheeky little script: </p>\n"
)
type MarkdownTestSuite struct {
@@ -88,6 +92,16 @@ func (suite *MarkdownTestSuite) TestParseWithHashtag() {
suite.Equal(withHashtagExpected, s)
}
+func (suite *MarkdownTestSuite) TestParseWithHTML() {
+ s := suite.formatter.FromMarkdown(context.Background(), mdWithHTML, nil, nil)
+ suite.Equal(mdWithHTMLExpected, s)
+}
+
+func (suite *MarkdownTestSuite) TestParseWithCheekyHTML() {
+ s := suite.formatter.FromMarkdown(context.Background(), mdWithCheekyHTML, nil, nil)
+ suite.Equal(mdWithCheekyHTMLExpected, s)
+}
+
func TestMarkdownTestSuite(t *testing.T) {
suite.Run(t, new(MarkdownTestSuite))
}
diff --git a/internal/text/minify.go b/internal/text/minify.go
deleted file mode 100644
index e2515b9a4..000000000
--- a/internal/text/minify.go
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- GoToSocial
- Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU Affero General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU Affero General Public License for more details.
-
- You should have received a copy of the GNU Affero General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-*/
-
-package text
-
-import (
- "github.com/tdewolff/minify/v2"
- "github.com/tdewolff/minify/v2/html"
-)
-
-var m *minify.M
-
-// MinifyHTML runs html through a minifier, reducing it in size.
-func MinifyHTML(in string) (string, error) {
- if m == nil {
- m = minify.New()
- m.Add("text/html", &html.Minifier{
- KeepQuotes: true,
- KeepEndTags: true,
- KeepDocumentTags: true,
- })
- }
- return m.String("text/html", in)
-}
diff --git a/internal/text/plain.go b/internal/text/plain.go
index bc10d1b67..3daea5686 100644
--- a/internal/text/plain.go
+++ b/internal/text/plain.go
@@ -20,6 +20,7 @@ package text
import (
"context"
+ "html"
"strings"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
@@ -32,10 +33,11 @@ var breakReplacer = strings.NewReplacer(
)
func (f *formatter) FromPlain(ctx context.Context, plain string, mentions []*gtsmodel.Mention, tags []*gtsmodel.Tag) string {
- content := preformat(plain)
+ // trim any crap
+ content := strings.TrimSpace(plain)
- // sanitize any html elements
- content = removeHTML(content)
+ // clean 'er up
+ content = html.EscapeString(content)
// format links nicely
content = f.ReplaceLinks(ctx, content)
@@ -52,5 +54,5 @@ func (f *formatter) FromPlain(ctx context.Context, plain string, mentions []*gts
// wrap the whole thing in a pee
content = `<p>` + content + `</p>`
- return postformat(content)
+ return SanitizeHTML(content)
}
diff --git a/internal/text/plain_test.go b/internal/text/plain_test.go
index 2b7b50d5e..cd82e0d1b 100644
--- a/internal/text/plain_test.go
+++ b/internal/text/plain_test.go
@@ -20,27 +20,21 @@ package text_test
import (
"context"
- "fmt"
"testing"
- "github.com/stretchr/testify/assert"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
)
const (
- simple = "this is a plain and simple status"
- simpleExpected = "<p>this is a plain and simple status</p>"
-
- withTag = "here's a simple status that uses hashtag #welcome!"
- withTagExpected = "<p>here's a simple status that uses hashtag <a href=\"http://localhost:8080/tags/welcome\" class=\"mention hashtag\" rel=\"tag nofollow noreferrer noopener\" target=\"_blank\">#<span>welcome</span></a>!</p>"
-
- moreComplex = `Another test @foss_satan@fossbros-anonymous.io
-
-#Hashtag
-
-Text`
- moreComplexFull = "<p>Another test <span class=\"h-card\"><a href=\"http://fossbros-anonymous.io/@foss_satan\" class=\"u-url mention\" rel=\"nofollow noreferrer noopener\" target=\"_blank\">@<span>foss_satan</span></a></span><br><br><a href=\"http://localhost:8080/tags/Hashtag\" class=\"mention hashtag\" rel=\"tag nofollow noreferrer noopener\" target=\"_blank\">#<span>Hashtag</span></a><br><br>Text</p>"
+ simple = "this is a plain and simple status"
+ simpleExpected = "<p>this is a plain and simple status</p>"
+ withTag = "here's a simple status that uses hashtag #welcome!"
+ withTagExpected = "<p>here&#39;s a simple status that uses hashtag <a href=\"http://localhost:8080/tags/welcome\" class=\"mention hashtag\" rel=\"tag nofollow noreferrer noopener\" target=\"_blank\">#<span>welcome</span></a>!</p>"
+ withHTML = "<div>blah this should just be html escaped blah</div>"
+ withHTMLExpected = "<p>&lt;div&gt;blah this should just be html escaped blah&lt;/div&gt;</p>"
+ moreComplex = "Another test @foss_satan@fossbros-anonymous.io\n\n#Hashtag\n\nText"
+ moreComplexFull = "<p>Another test <span class=\"h-card\"><a href=\"http://fossbros-anonymous.io/@foss_satan\" class=\"u-url mention\" rel=\"nofollow noreferrer noopener\" target=\"_blank\">@<span>foss_satan</span></a></span><br/><br/><a href=\"http://localhost:8080/tags/Hashtag\" class=\"mention hashtag\" rel=\"tag nofollow noreferrer noopener\" target=\"_blank\">#<span>Hashtag</span></a><br/><br/>Text</p>"
)
type PlainTestSuite struct {
@@ -49,7 +43,7 @@ type PlainTestSuite struct {
func (suite *PlainTestSuite) TestParseSimple() {
f := suite.formatter.FromPlain(context.Background(), simple, nil, nil)
- assert.Equal(suite.T(), simpleExpected, f)
+ suite.Equal(simpleExpected, f)
}
func (suite *PlainTestSuite) TestParseWithTag() {
@@ -58,7 +52,12 @@ func (suite *PlainTestSuite) TestParseWithTag() {
}
f := suite.formatter.FromPlain(context.Background(), withTag, nil, foundTags)
- assert.Equal(suite.T(), withTagExpected, f)
+ suite.Equal(withTagExpected, f)
+}
+
+func (suite *PlainTestSuite) TestParseWithHTML() {
+ f := suite.formatter.FromPlain(context.Background(), withHTML, nil, nil)
+ suite.Equal(withHTMLExpected, f)
}
func (suite *PlainTestSuite) TestParseMoreComplex() {
@@ -71,10 +70,7 @@ func (suite *PlainTestSuite) TestParseMoreComplex() {
}
f := suite.formatter.FromPlain(context.Background(), moreComplex, foundMentions, foundTags)
-
- fmt.Println(f)
-
- assert.Equal(suite.T(), moreComplexFull, f)
+ suite.Equal(moreComplexFull, f)
}
func TestPlainTestSuite(t *testing.T) {
diff --git a/internal/text/sanitize.go b/internal/text/sanitize.go
index d4faabbb1..96b7ef994 100644
--- a/internal/text/sanitize.go
+++ b/internal/text/sanitize.go
@@ -19,7 +19,9 @@
package text
import (
+ "html"
"regexp"
+ "strings"
"github.com/microcosm-cc/bluemonday"
)
@@ -59,7 +61,8 @@ func SanitizeHTML(in string) string {
// SanitizePlaintext runs text through basic sanitization. This removes
// any html elements that were in the string, and returns clean plaintext.
func SanitizePlaintext(in string) string {
- content := preformat(in)
+ content := html.UnescapeString(in)
content = removeHTML(content)
- return postformat(content)
+ content = html.UnescapeString(content)
+ return strings.TrimSpace(content)
}