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Use raw Wiki links for non-renderable Wiki files (#30273)
In Wiki pages, short-links created to local Wiki files were always expanded as regular Wiki Links. In particular, if a link wanted to point to a file that Gitea doesn't know how to render (e.g, a .zip file), a user following the link would be silently redirected to the Wiki's home page. This change makes short-links* in Wiki pages be expanded to raw wiki links, so these local wiki files may be accessed without manually accessing their URL. * only short-links ending in a file extension that isn't renderable are affected. Closes #27121. Signed-off-by: Rafael Girão <rafael.s.girao@tecnico.ulisboa.pt> Co-authored-by: silverwind <me@silverwind.io>
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@ -709,7 +709,8 @@ func shortLinkProcessor(ctx *RenderContext, node *html.Node) {
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name += tail
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image := false
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switch ext := filepath.Ext(link); ext {
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ext := filepath.Ext(link)
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switch ext {
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// fast path: empty string, ignore
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case "":
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// leave image as false
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@ -767,11 +768,26 @@ func shortLinkProcessor(ctx *RenderContext, node *html.Node) {
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}
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} else {
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if !absoluteLink {
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var base string
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if ctx.IsWiki {
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link = util.URLJoin(ctx.Links.WikiLink(), link)
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switch ext {
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case "":
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// no file extension, create a regular wiki link
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base = ctx.Links.WikiLink()
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default:
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// we have a file extension:
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// return a regular wiki link if it's a renderable file (extension),
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// raw link otherwise
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if Type(link) != "" {
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base = ctx.Links.WikiLink()
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} else {
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base = ctx.Links.WikiRawLink()
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}
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}
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} else {
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link = util.URLJoin(ctx.Links.SrcLink(), link)
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base = ctx.Links.SrcLink()
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}
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link = util.URLJoin(base, link)
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}
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childNode.Type = html.TextNode
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childNode.Data = name
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@ -427,6 +427,10 @@ func TestRender_ShortLinks(t *testing.T) {
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otherImgurlWiki := util.URLJoin(markup.TestRepoURL, "wiki", "raw", "Link+Other.jpg")
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encodedImgurlWiki := util.URLJoin(markup.TestRepoURL, "wiki", "raw", "Link+%23.jpg")
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notencodedImgurlWiki := util.URLJoin(markup.TestRepoURL, "wiki", "raw", "some", "path", "Link+#.jpg")
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renderableFileURL := util.URLJoin(tree, "markdown_file.md")
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renderableFileURLWiki := util.URLJoin(markup.TestRepoURL, "wiki", "markdown_file.md")
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unrenderableFileURL := util.URLJoin(tree, "file.zip")
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unrenderableFileURLWiki := util.URLJoin(markup.TestRepoURL, "wiki", "raw", "file.zip")
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favicon := "http://google.com/favicon.ico"
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test(
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@ -481,6 +485,14 @@ func TestRender_ShortLinks(t *testing.T) {
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"[[Link]] [[Other Link]] [[Link?]]",
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`<p><a href="`+url+`" rel="nofollow">Link</a> <a href="`+otherURL+`" rel="nofollow">Other Link</a> <a href="`+encodedURL+`" rel="nofollow">Link?</a></p>`,
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`<p><a href="`+urlWiki+`" rel="nofollow">Link</a> <a href="`+otherURLWiki+`" rel="nofollow">Other Link</a> <a href="`+encodedURLWiki+`" rel="nofollow">Link?</a></p>`)
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test(
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"[[markdown_file.md]]",
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`<p><a href="`+renderableFileURL+`" rel="nofollow">markdown_file.md</a></p>`,
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`<p><a href="`+renderableFileURLWiki+`" rel="nofollow">markdown_file.md</a></p>`)
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test(
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"[[file.zip]]",
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`<p><a href="`+unrenderableFileURL+`" rel="nofollow">file.zip</a></p>`,
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`<p><a href="`+unrenderableFileURLWiki+`" rel="nofollow">file.zip</a></p>`)
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test(
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"[[Link #.jpg]]",
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`<p><a href="`+encodedImgurl+`" rel="nofollow"><img src="`+encodedImgurl+`" title="Link #.jpg" alt="Link #.jpg"/></a></p>`,
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@ -653,9 +653,9 @@ space</p>
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Expected: `<p>space @mention-user<br/>
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/just/a/path.bin<br/>
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<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
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<a href="/wiki/file.bin" rel="nofollow">local link</a><br/>
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<a href="/wiki/raw/file.bin" rel="nofollow">local link</a><br/>
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<a href="https://example.com" rel="nofollow">remote link</a><br/>
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<a href="/wiki/file.bin" rel="nofollow">local link</a><br/>
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<a href="/wiki/raw/file.bin" rel="nofollow">local link</a><br/>
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<a href="https://example.com" rel="nofollow">remote link</a><br/>
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<a href="/wiki/raw/image.jpg" target="_blank" rel="nofollow noopener"><img src="/wiki/raw/image.jpg" alt="local image"/></a><br/>
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<a href="/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/wiki/raw/path/file" alt="local image"/></a><br/>
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@ -711,9 +711,9 @@ space</p>
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Expected: `<p>space @mention-user<br/>
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/just/a/path.bin<br/>
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<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
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<a href="https://gitea.io/wiki/file.bin" rel="nofollow">local link</a><br/>
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<a href="https://gitea.io/wiki/raw/file.bin" rel="nofollow">local link</a><br/>
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<a href="https://example.com" rel="nofollow">remote link</a><br/>
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<a href="https://gitea.io/wiki/file.bin" rel="nofollow">local link</a><br/>
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<a href="https://gitea.io/wiki/raw/file.bin" rel="nofollow">local link</a><br/>
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<a href="https://example.com" rel="nofollow">remote link</a><br/>
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<a href="https://gitea.io/wiki/raw/image.jpg" target="_blank" rel="nofollow noopener"><img src="https://gitea.io/wiki/raw/image.jpg" alt="local image"/></a><br/>
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<a href="https://gitea.io/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="https://gitea.io/wiki/raw/path/file" alt="local image"/></a><br/>
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@ -769,9 +769,9 @@ space</p>
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Expected: `<p>space @mention-user<br/>
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/just/a/path.bin<br/>
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<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
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<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
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<a href="/relative/path/wiki/raw/file.bin" rel="nofollow">local link</a><br/>
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<a href="https://example.com" rel="nofollow">remote link</a><br/>
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<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
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<a href="/relative/path/wiki/raw/file.bin" rel="nofollow">local link</a><br/>
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<a href="https://example.com" rel="nofollow">remote link</a><br/>
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<a href="/relative/path/wiki/raw/image.jpg" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/image.jpg" alt="local image"/></a><br/>
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<a href="/relative/path/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/path/file" alt="local image"/></a><br/>
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@ -829,9 +829,9 @@ space</p>
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Expected: `<p>space @mention-user<br/>
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/just/a/path.bin<br/>
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<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
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<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
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<a href="/relative/path/wiki/raw/file.bin" rel="nofollow">local link</a><br/>
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<a href="https://example.com" rel="nofollow">remote link</a><br/>
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<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
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<a href="/relative/path/wiki/raw/file.bin" rel="nofollow">local link</a><br/>
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<a href="https://example.com" rel="nofollow">remote link</a><br/>
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<a href="/relative/path/wiki/raw/image.jpg" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/image.jpg" alt="local image"/></a><br/>
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<a href="/relative/path/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/path/file" alt="local image"/></a><br/>
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@ -889,9 +889,9 @@ space</p>
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Expected: `<p>space @mention-user<br/>
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/just/a/path.bin<br/>
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<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
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<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
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<a href="/relative/path/wiki/raw/file.bin" rel="nofollow">local link</a><br/>
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<a href="https://example.com" rel="nofollow">remote link</a><br/>
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<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
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<a href="/relative/path/wiki/raw/file.bin" rel="nofollow">local link</a><br/>
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<a href="https://example.com" rel="nofollow">remote link</a><br/>
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<a href="/relative/path/wiki/raw/image.jpg" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/image.jpg" alt="local image"/></a><br/>
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<a href="/relative/path/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/path/file" alt="local image"/></a><br/>
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@ -951,9 +951,9 @@ space</p>
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Expected: `<p>space @mention-user<br/>
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/just/a/path.bin<br/>
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<a href="https://example.com/file.bin" rel="nofollow">https://example.com/file.bin</a><br/>
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<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
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<a href="/relative/path/wiki/raw/file.bin" rel="nofollow">local link</a><br/>
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<a href="https://example.com" rel="nofollow">remote link</a><br/>
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<a href="/relative/path/wiki/file.bin" rel="nofollow">local link</a><br/>
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<a href="/relative/path/wiki/raw/file.bin" rel="nofollow">local link</a><br/>
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<a href="https://example.com" rel="nofollow">remote link</a><br/>
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<a href="/relative/path/wiki/raw/image.jpg" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/image.jpg" alt="local image"/></a><br/>
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<a href="/relative/path/wiki/raw/path/file" target="_blank" rel="nofollow noopener"><img src="/relative/path/wiki/raw/path/file" alt="local image"/></a><br/>
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@ -4,6 +4,8 @@
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package markdown
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import (
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"path/filepath"
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"code.gitea.io/gitea/modules/markup"
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giteautil "code.gitea.io/gitea/modules/util"
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@ -18,7 +20,16 @@ func (g *ASTTransformer) transformLink(ctx *markup.RenderContext, v *ast.Link, r
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if !isAnchorFragment && !markup.IsFullURLBytes(link) {
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base := ctx.Links.Base
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if ctx.IsWiki {
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base = ctx.Links.WikiLink()
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if filepath.Ext(string(link)) == "" {
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// This link doesn't have a file extension - assume a regular wiki link
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base = ctx.Links.WikiLink()
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} else if markup.Type(string(link)) != "" {
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// If it's a file type we can render, use a regular wiki link
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base = ctx.Links.WikiLink()
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} else {
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// Otherwise, use a raw link instead
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base = ctx.Links.WikiRawLink()
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}
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} else if ctx.Links.HasBranchInfo() {
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base = ctx.Links.SrcLink()
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}
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@ -200,12 +200,13 @@ func TestDeleteWikiPagePost(t *testing.T) {
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func TestWikiRaw(t *testing.T) {
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for filepath, filetype := range map[string]string{
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"jpeg.jpg": "image/jpeg",
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"images/jpeg.jpg": "image/jpeg",
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"Page With Spaced Name": "text/plain; charset=utf-8",
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"Page-With-Spaced-Name": "text/plain; charset=utf-8",
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"Page With Spaced Name.md": "", // there is no "Page With Spaced Name.md" in repo
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"Page-With-Spaced-Name.md": "text/plain; charset=utf-8",
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"jpeg.jpg": "image/jpeg",
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"images/jpeg.jpg": "image/jpeg",
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"files/Non-Renderable-File.zip": "application/octet-stream",
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"Page With Spaced Name": "text/plain; charset=utf-8",
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"Page-With-Spaced-Name": "text/plain; charset=utf-8",
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"Page With Spaced Name.md": "", // there is no "Page With Spaced Name.md" in repo
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"Page-With-Spaced-Name.md": "text/plain; charset=utf-8",
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} {
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unittest.PrepareTestEnv(t)
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@ -0,0 +1 @@
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xťŹKnÄ Dłć죱ÁvóEQ˛Ę~nĐ@3Fňđ‰r”\,dŽ<64>^”TĄŇSµĎŹGj|žĹK+DÜĘŕ˘
$2`ĺ4ÇÉY«”Y”u{‡Xho\Źŕ‚u4E;k- P4<>Q^Hł84Ŕđlk.ü†iă_©ü|gţVžv¨Ă=ĚŤüž|Î-U—q8Ú;—ZJµč,ý<>Nnô_<C3B4>Ő”ę0Ůaě3ľçýŇż TĐmÄ·ěqă1mÄŘŤb˝ňµµŁ^ÇńžÚzşˇ/ďůŇá_Ö5ŐzR'-'É~étl˝
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@ -1 +1 @@
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0dca5bd9b5d7ef937710e056f575e86c0184ba85
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a5bbc0fd39a696feabed2d4cccaf05abbcaf3b02
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@ -45,6 +45,7 @@ func TestRepoCloneWiki(t *testing.T) {
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assertFileExist(t, filepath.Join(dstPath, "Page-With-Image.md"))
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assertFileExist(t, filepath.Join(dstPath, "Page-With-Spaced-Name.md"))
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assertFileExist(t, filepath.Join(dstPath, "images"))
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assertFileExist(t, filepath.Join(dstPath, "files/Non-Renderable-File.zip"))
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assertFileExist(t, filepath.Join(dstPath, "jpeg.jpg"))
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})
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})
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