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// Copyright 2024 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package markup
import (
"path"
"code.gitea.io/gitea/modules/util"
)
func ResolveLink(ctx *RenderContext, link, userContentAnchorPrefix string) (result string, resolved bool) {
isAnchorFragment := link != "" && link[0] == '#'
if !isAnchorFragment && !IsFullURLString(link) {
linkBase := ctx.Links.Base
if ctx.IsWiki {
if ext := path.Ext(link); ext == "" || ext == ".-" {
linkBase = ctx.Links.WikiLink() // the link is for a wiki page
} else if DetectMarkupTypeByFileName(link) != "" {
linkBase = ctx.Links.WikiLink() // the link is renderable as a wiki page
} else {
linkBase = ctx.Links.WikiRawLink() // otherwise, use a raw link instead to view&download medias
}
} else if ctx.Links.BranchPath != "" || ctx.Links.TreePath != "" {
// if there is no BranchPath, then the link will be something like "/owner/repo/src/{the-file-path}"
// and then this link will be handled by the "legacy-ref" code and be redirected to the default branch like "/owner/repo/src/branch/main/{the-file-path}"
linkBase = ctx.Links.SrcLink()
}
link, resolved = util.URLJoin(linkBase, link), true
}
if isAnchorFragment && userContentAnchorPrefix != "" {
link, resolved = userContentAnchorPrefix+link[1:], true
}
return link, resolved
}
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