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forkjo/modules/markup/html_test.go
mrsdizzie 020075e12f Remove visitLinksForShortLinks features (#6257) 
The visitLinksForShortLinks feature would look inside of an <a> tag and
run shortLinkProcessorFull on any text, which attempts to create links
out of potential 'short links' like [[test]] [[link|example]] etc...
This makes no sense because you can't have nested links within an <a>
tag. Specifically, the html5 standard says <a> tags can't include
interactive content if they contain the href attribute:

 http://w3c.github.io/html/single-page.html#the-a-element

And also defines an <a> element with a href attribute as interactive:

 http://w3c.github.io/html/single-page.html#interactive-content

Therefore you can't really put a link inside of another link. In
practice none of this works anyways since browsers won't render it, it
would probably be broken if they tried, and it is causing a bug
(#4946). No current tests rely on this behavior either.

This removes the feature and also explicitly excludes the
current visitNodeForShortLinks from looking in <a> tags.
2019-03-07 14:13:44 -05:00

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// Copyright 2017 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package markup_test
import (
"strings"
"testing"
. "code.gitea.io/gitea/modules/markup"
"code.gitea.io/gitea/modules/markup/markdown"
"code.gitea.io/gitea/modules/setting"
"code.gitea.io/gitea/modules/util"
"github.com/stretchr/testify/assert"
)
func TestRender_Commits(t *testing.T) {
setting.AppURL = AppURL
setting.AppSubURL = AppSubURL
test := func(input, expected string) {
buffer := RenderString(".md", input, setting.AppSubURL, nil)
assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(string(buffer)))
}
var sha = "b6dd6210eaebc915fd5be5579c58cce4da2e2579"
var commit = util.URLJoin(AppSubURL, "commit", sha)
var subtree = util.URLJoin(commit, "src")
var tree = strings.Replace(subtree, "/commit/", "/tree/", -1)
test(sha, `<p><a href="`+commit+`" rel="nofollow">b6dd6210ea</a></p>`)
test(sha[:7], `<p><a href="`+commit[:len(commit)-(40-7)]+`" rel="nofollow">b6dd621</a></p>`)
test(sha[:39], `<p><a href="`+commit[:len(commit)-(40-39)]+`" rel="nofollow">b6dd6210ea</a></p>`)
test(commit, `<p><a href="`+commit+`" rel="nofollow">b6dd6210ea</a></p>`)
test(tree, `<p><a href="`+tree+`" rel="nofollow">b6dd6210ea/src</a></p>`)
test("commit "+sha, `<p>commit <a href="`+commit+`" rel="nofollow">b6dd6210ea</a></p>`)
}
func TestRender_CrossReferences(t *testing.T) {
setting.AppURL = AppURL
setting.AppSubURL = AppSubURL
test := func(input, expected string) {
buffer := RenderString("a.md", input, setting.AppSubURL, nil)
assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(string(buffer)))
}
test(
"gogits/gogs#12345",
`<p><a href="`+util.URLJoin(AppURL, "gogits", "gogs", "issues", "12345")+`" rel="nofollow">gogits/gogs#12345</a></p>`)
test(
"go-gitea/gitea#12345",
`<p><a href="`+util.URLJoin(AppURL, "go-gitea", "gitea", "issues", "12345")+`" rel="nofollow">go-gitea/gitea#12345</a></p>`)
}
func TestMisc_IsSameDomain(t *testing.T) {
setting.AppURL = AppURL
setting.AppSubURL = AppSubURL
var sha = "b6dd6210eaebc915fd5be5579c58cce4da2e2579"
var commit = util.URLJoin(AppSubURL, "commit", sha)
assert.True(t, IsSameDomain(commit))
assert.False(t, IsSameDomain("http://google.com/ncr"))
assert.False(t, IsSameDomain("favicon.ico"))
}
func TestRender_links(t *testing.T) {
setting.AppURL = AppURL
setting.AppSubURL = AppSubURL
test := func(input, expected string) {
buffer := RenderString("a.md", input, setting.AppSubURL, nil)
assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(string(buffer)))
}
// Text that should be turned into URL
test(
"https://www.example.com",
`<p><a href="https://www.example.com" rel="nofollow">https://www.example.com</a></p>`)
test(
"http://www.example.com",
`<p><a href="http://www.example.com" rel="nofollow">http://www.example.com</a></p>`)
test(
"https://example.com",
`<p><a href="https://example.com" rel="nofollow">https://example.com</a></p>`)
test(
"http://example.com",
`<p><a href="http://example.com" rel="nofollow">http://example.com</a></p>`)
test(
"http://foo.com/blah_blah",
`<p><a href="http://foo.com/blah_blah" rel="nofollow">http://foo.com/blah_blah</a></p>`)
test(
"http://foo.com/blah_blah/",
`<p><a href="http://foo.com/blah_blah/" rel="nofollow">http://foo.com/blah_blah/</a></p>`)
test(
"http://www.example.com/wpstyle/?p=364",
`<p><a href="http://www.example.com/wpstyle/?p=364" rel="nofollow">http://www.example.com/wpstyle/?p=364</a></p>`)
test(
"https://www.example.com/foo/?bar=baz&inga=42&quux",
`<p><a href="https://www.example.com/foo/?bar=baz&amp;inga=42&amp;quux" rel="nofollow">https://www.example.com/foo/?bar=baz&amp;inga=42&amp;quux</a></p>`)
test(
"http://142.42.1.1/",
`<p><a href="http://142.42.1.1/" rel="nofollow">http://142.42.1.1/</a></p>`)
// Test that should *not* be turned into URL
test(
"www.example.com",
`<p>www.example.com</p>`)
test(
"example.com",
`<p>example.com</p>`)
test(
"test.example.com",
`<p>test.example.com</p>`)
test(
"http://",
`<p>http://</p>`)
test(
"https://",
`<p>https://</p>`)
test(
"://",
`<p>://</p>`)
test(
"www",
`<p>www</p>`)
}
func TestRender_ShortLinks(t *testing.T) {
setting.AppURL = AppURL
setting.AppSubURL = AppSubURL
tree := util.URLJoin(AppSubURL, "src", "master")
test := func(input, expected, expectedWiki string) {
buffer := markdown.RenderString(input, tree, nil)
assert.Equal(t, strings.TrimSpace(expected), strings.TrimSpace(string(buffer)))
buffer = markdown.RenderWiki([]byte(input), setting.AppSubURL, nil)
assert.Equal(t, strings.TrimSpace(expectedWiki), strings.TrimSpace(string(buffer)))
}
rawtree := util.URLJoin(AppSubURL, "raw", "master")
url := util.URLJoin(tree, "Link")
otherURL := util.URLJoin(tree, "Other-Link")
encodedURL := util.URLJoin(tree, "Link%3F")
imgurl := util.URLJoin(rawtree, "Link.jpg")
otherImgurl := util.URLJoin(rawtree, "Link+Other.jpg")
encodedImgurl := util.URLJoin(rawtree, "Link+%23.jpg")
notencodedImgurl := util.URLJoin(rawtree, "some", "path", "Link+#.jpg")
urlWiki := util.URLJoin(AppSubURL, "wiki", "Link")
otherURLWiki := util.URLJoin(AppSubURL, "wiki", "Other-Link")
encodedURLWiki := util.URLJoin(AppSubURL, "wiki", "Link%3F")
imgurlWiki := util.URLJoin(AppSubURL, "wiki", "raw", "Link.jpg")
otherImgurlWiki := util.URLJoin(AppSubURL, "wiki", "raw", "Link+Other.jpg")
encodedImgurlWiki := util.URLJoin(AppSubURL, "wiki", "raw", "Link+%23.jpg")
notencodedImgurlWiki := util.URLJoin(AppSubURL, "wiki", "raw", "some", "path", "Link+#.jpg")
favicon := "http://google.com/favicon.ico"
test(
"[[Link]]",
`<p><a href="`+url+`" rel="nofollow">Link</a></p>`,
`<p><a href="`+urlWiki+`" rel="nofollow">Link</a></p>`)
test(
"[[Link.jpg]]",
`<p><a href="`+imgurl+`" rel="nofollow"><img src="`+imgurl+`" title="Link.jpg" alt="Link.jpg"/></a></p>`,
`<p><a href="`+imgurlWiki+`" rel="nofollow"><img src="`+imgurlWiki+`" title="Link.jpg" alt="Link.jpg"/></a></p>`)
test(
"[["+favicon+"]]",
`<p><a href="`+favicon+`" rel="nofollow"><img src="`+favicon+`" title="favicon.ico"/></a></p>`,
`<p><a href="`+favicon+`" rel="nofollow"><img src="`+favicon+`" title="favicon.ico"/></a></p>`)
test(
"[[Name|Link]]",
`<p><a href="`+url+`" rel="nofollow">Name</a></p>`,
`<p><a href="`+urlWiki+`" rel="nofollow">Name</a></p>`)
test(
"[[Name|Link.jpg]]",
`<p><a href="`+imgurl+`" rel="nofollow"><img src="`+imgurl+`" title="Name" alt="Name"/></a></p>`,
`<p><a href="`+imgurlWiki+`" rel="nofollow"><img src="`+imgurlWiki+`" title="Name" alt="Name"/></a></p>`)
test(
"[[Name|Link.jpg|alt=AltName]]",
`<p><a href="`+imgurl+`" rel="nofollow"><img src="`+imgurl+`" title="AltName" alt="AltName"/></a></p>`,
`<p><a href="`+imgurlWiki+`" rel="nofollow"><img src="`+imgurlWiki+`" title="AltName" alt="AltName"/></a></p>`)
test(
"[[Name|Link.jpg|title=Title]]",
`<p><a href="`+imgurl+`" rel="nofollow"><img src="`+imgurl+`" title="Title" alt="Title"/></a></p>`,
`<p><a href="`+imgurlWiki+`" rel="nofollow"><img src="`+imgurlWiki+`" title="Title" alt="Title"/></a></p>`)
test(
"[[Name|Link.jpg|alt=AltName|title=Title]]",
`<p><a href="`+imgurl+`" rel="nofollow"><img src="`+imgurl+`" title="Title" alt="AltName"/></a></p>`,
`<p><a href="`+imgurlWiki+`" rel="nofollow"><img src="`+imgurlWiki+`" title="Title" alt="AltName"/></a></p>`)
test(
"[[Name|Link.jpg|alt=\"AltName\"|title='Title']]",
`<p><a href="`+imgurl+`" rel="nofollow"><img src="`+imgurl+`" title="Title" alt="AltName"/></a></p>`,
`<p><a href="`+imgurlWiki+`" rel="nofollow"><img src="`+imgurlWiki+`" title="Title" alt="AltName"/></a></p>`)
test(
"[[Name|Link Other.jpg|alt=\"AltName\"|title='Title']]",
`<p><a href="`+otherImgurl+`" rel="nofollow"><img src="`+otherImgurl+`" title="Title" alt="AltName"/></a></p>`,
`<p><a href="`+otherImgurlWiki+`" rel="nofollow"><img src="`+otherImgurlWiki+`" title="Title" alt="AltName"/></a></p>`)
test(
"[[Link]] [[Other Link]]",
`<p><a href="`+url+`" rel="nofollow">Link</a> <a href="`+otherURL+`" rel="nofollow">Other Link</a></p>`,
`<p><a href="`+urlWiki+`" rel="nofollow">Link</a> <a href="`+otherURLWiki+`" rel="nofollow">Other Link</a></p>`)
test(
"[[Link?]]",
`<p><a href="`+encodedURL+`" rel="nofollow">Link?</a></p>`,
`<p><a href="`+encodedURLWiki+`" rel="nofollow">Link?</a></p>`)
test(
"[[Link]] [[Other Link]] [[Link?]]",
`<p><a href="`+url+`" rel="nofollow">Link</a> <a href="`+otherURL+`" rel="nofollow">Other Link</a> <a href="`+encodedURL+`" rel="nofollow">Link?</a></p>`,
`<p><a href="`+urlWiki+`" rel="nofollow">Link</a> <a href="`+otherURLWiki+`" rel="nofollow">Other Link</a> <a href="`+encodedURLWiki+`" rel="nofollow">Link?</a></p>`)
test(
"[[Link #.jpg]]",
`<p><a href="`+encodedImgurl+`" rel="nofollow"><img src="`+encodedImgurl+`"/></a></p>`,
`<p><a href="`+encodedImgurlWiki+`" rel="nofollow"><img src="`+encodedImgurlWiki+`"/></a></p>`)
test(
"[[Name|Link #.jpg|alt=\"AltName\"|title='Title']]",
`<p><a href="`+encodedImgurl+`" rel="nofollow"><img src="`+encodedImgurl+`" title="Title" alt="AltName"/></a></p>`,
`<p><a href="`+encodedImgurlWiki+`" rel="nofollow"><img src="`+encodedImgurlWiki+`" title="Title" alt="AltName"/></a></p>`)
test(
"[[some/path/Link #.jpg]]",
`<p><a href="`+notencodedImgurl+`" rel="nofollow"><img src="`+notencodedImgurl+`"/></a></p>`,
`<p><a href="`+notencodedImgurlWiki+`" rel="nofollow"><img src="`+notencodedImgurlWiki+`"/></a></p>`)
test(
"<p><a href=\"https://example.org\">[[foobar]]</a></p>",
`<p><a href="https://example.org" rel="nofollow">[[foobar]]</a></p>`,
`<p><a href="https://example.org" rel="nofollow">[[foobar]]</a></p>`)
}
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