48 lines
1.3 KiB
Go
48 lines
1.3 KiB
Go
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// Copyright 2024 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package markdown
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import (
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"bytes"
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"slices"
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"code.gitea.io/gitea/modules/markup"
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"code.gitea.io/gitea/modules/setting"
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giteautil "code.gitea.io/gitea/modules/util"
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"github.com/yuin/goldmark/ast"
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"github.com/yuin/goldmark/text"
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)
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func (g *ASTTransformer) transformLink(ctx *markup.RenderContext, v *ast.Link, reader text.Reader) {
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// Links need their href to munged to be a real value
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link := v.Destination
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// Do not process the link if it's not a link, starts with an hashtag
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// (indicating it's an anchor link), starts with `mailto:` or any of the
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// custom markdown URLs.
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processLink := len(link) > 0 && !markup.IsLink(link) &&
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link[0] != '#' && !bytes.HasPrefix(link, byteMailto) &&
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!slices.ContainsFunc(setting.Markdown.CustomURLSchemes, func(s string) bool {
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return bytes.HasPrefix(link, []byte(s+":"))
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})
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if processLink {
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var base string
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if ctx.IsWiki {
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base = ctx.Links.WikiLink()
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} else if ctx.Links.HasBranchInfo() {
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base = ctx.Links.SrcLink()
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} else {
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base = ctx.Links.Base
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}
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link = []byte(giteautil.URLJoin(base, string(link)))
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}
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if len(link) > 0 && link[0] == '#' {
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link = []byte("#user-content-" + string(link)[1:])
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}
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v.Destination = link
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}
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