93 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			Go
		
	
	
	
			
		
		
	
	
			93 lines
		
	
	
		
			2.3 KiB
		
	
	
	
		
			Go
		
	
	
	
// Copyright 2014 The Gogs Authors. All rights reserved.
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// Copyright 2023 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package common
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import (
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	"fmt"
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	"net/http"
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	"strings"
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	"code.gitea.io/gitea/modules/context"
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	"code.gitea.io/gitea/modules/markup"
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	"code.gitea.io/gitea/modules/markup/markdown"
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	"code.gitea.io/gitea/modules/setting"
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	"code.gitea.io/gitea/modules/util"
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	"mvdan.cc/xurls/v2"
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)
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// RenderMarkup renders markup text for the /markup and /markdown endpoints
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func RenderMarkup(ctx *context.Base, repo *context.Repository, mode, text, urlPrefix, filePath string, wiki bool) {
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	var markupType string
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	relativePath := ""
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	if len(text) == 0 {
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		_, _ = ctx.Write([]byte(""))
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		return
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	}
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	switch mode {
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	case "markdown":
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		// Raw markdown
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		if err := markdown.RenderRaw(&markup.RenderContext{
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			Ctx:       ctx,
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			URLPrefix: urlPrefix,
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		}, strings.NewReader(text), ctx.Resp); err != nil {
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			ctx.Error(http.StatusInternalServerError, err.Error())
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		}
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		return
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	case "comment":
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		// Comment as markdown
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		markupType = markdown.MarkupName
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	case "gfm":
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		// Github Flavored Markdown as document
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		markupType = markdown.MarkupName
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	case "file":
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		// File as document based on file extension
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		markupType = ""
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		relativePath = filePath
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	default:
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		ctx.Error(http.StatusUnprocessableEntity, fmt.Sprintf("Unknown mode: %s", mode))
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		return
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	}
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	if !strings.HasPrefix(setting.AppSubURL+"/", urlPrefix) {
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		// check if urlPrefix is already set to a URL
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		linkRegex, _ := xurls.StrictMatchingScheme("https?://")
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		m := linkRegex.FindStringIndex(urlPrefix)
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		if m == nil {
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			urlPrefix = util.URLJoin(setting.AppURL, urlPrefix)
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		}
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	}
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	meta := map[string]string{}
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	if repo != nil && repo.Repository != nil {
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		if mode == "comment" {
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			meta = repo.Repository.ComposeMetas()
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		} else {
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			meta = repo.Repository.ComposeDocumentMetas()
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		}
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	}
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	if mode != "comment" {
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		meta["mode"] = "document"
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	}
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	if err := markup.Render(&markup.RenderContext{
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		Ctx:          ctx,
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		URLPrefix:    urlPrefix,
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		Metas:        meta,
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		IsWiki:       wiki,
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		Type:         markupType,
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		RelativePath: relativePath,
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	}, strings.NewReader(text), ctx.Resp); err != nil {
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		if markup.IsErrUnsupportedRenderExtension(err) {
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			ctx.Error(http.StatusUnprocessableEntity, err.Error())
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		} else {
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			ctx.Error(http.StatusInternalServerError, err.Error())
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		}
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		return
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	}
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}
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