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gitea/routers/web/misc/markdown.go

99 lines
2.5 KiB
Go

// Copyright 2014 The Gogs Authors. All rights reserved.
// Copyright 2022 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package misc
import (
"net/http"
"strings"
"code.gitea.io/gitea/modules/context"
"code.gitea.io/gitea/modules/markup"
"code.gitea.io/gitea/modules/markup/markdown"
"code.gitea.io/gitea/modules/setting"
api "code.gitea.io/gitea/modules/structs"
"code.gitea.io/gitea/modules/util"
"code.gitea.io/gitea/modules/web"
"mvdan.cc/xurls/v2"
)
// Markdown render markdown document to HTML
func Markdown(ctx *context.Context) {
// swagger:operation POST /markdown miscellaneous renderMarkdown
// ---
// summary: Render a markdown document as HTML
// parameters:
// - name: body
// in: body
// schema:
// "$ref": "#/definitions/MarkdownOption"
// consumes:
// - application/json
// produces:
// - text/html
// responses:
// "200":
// "$ref": "#/responses/MarkdownRender"
// "422":
// "$ref": "#/responses/validationError"
form := web.GetForm(ctx).(*api.MarkdownOption)
if ctx.HasAPIError() {
ctx.Error(http.StatusUnprocessableEntity, "", ctx.GetErrMsg())
return
}
if len(form.Text) == 0 {
_, _ = ctx.Write([]byte(""))
return
}
switch form.Mode {
case "comment":
fallthrough
case "gfm":
urlPrefix := form.Context
meta := map[string]string{}
if !strings.HasPrefix(setting.AppSubURL+"/", urlPrefix) {
// check if urlPrefix is already set to a URL
linkRegex, _ := xurls.StrictMatchingScheme("https?://")
m := linkRegex.FindStringIndex(urlPrefix)
if m == nil {
urlPrefix = util.URLJoin(setting.AppURL, form.Context)
}
}
if ctx.Repo != nil && ctx.Repo.Repository != nil {
// "gfm" = Github Flavored Markdown - set this to render as a document
if form.Mode == "gfm" {
meta = ctx.Repo.Repository.ComposeDocumentMetas()
} else {
meta = ctx.Repo.Repository.ComposeMetas()
}
}
if form.Mode == "gfm" {
meta["mode"] = "document"
}
if err := markdown.Render(&markup.RenderContext{
Ctx: ctx,
URLPrefix: urlPrefix,
Metas: meta,
IsWiki: form.Wiki,
}, strings.NewReader(form.Text), ctx.Resp); err != nil {
ctx.Error(http.StatusInternalServerError, err.Error())
return
}
default:
if err := markdown.RenderRaw(&markup.RenderContext{
Ctx: ctx,
URLPrefix: form.Context,
}, strings.NewReader(form.Text), ctx.Resp); err != nil {
ctx.Error(http.StatusInternalServerError, err.Error())
return
}
}
}