Remove dependent on session auth for api/v1 routers (#19321)

* Remove dependent on session auth for api/v1 routers

* Remove unnecessary session on API context

* remove missed header

* fix test

* fix missed api/v1

2 files changed, 119 insertions, 0 deletions

diff --git a/routers/web/misc/markdown.go b/routers/web/misc/markdown.go
new file mode 100644
index 0000000000..b37aaf10ff
--- /dev/null
+++ b/routers/web/misc/markdown.go
@@ -0,0 +1,98 @@
+// Copyright 2014 The Gogs Authors. All rights reserved.
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+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
+		}
+	}
+}
diff --git a/routers/web/misc/swagger.go b/routers/web/misc/swagger.go
new file mode 100644
index 0000000000..e46d4194b4
--- /dev/null
+++ b/routers/web/misc/swagger.go
@@ -0,0 +1,21 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package misc
+
+import (
+	"net/http"
+
+	"code.gitea.io/gitea/modules/base"
+	"code.gitea.io/gitea/modules/context"
+)
+
+// tplSwagger swagger page template
+const tplSwagger base.TplName = "swagger/ui"
+
+// Swagger render swagger-ui page with v1 json
+func Swagger(ctx *context.Context) {
+	ctx.Data["APIJSONVersion"] = "v1"
+	ctx.HTML(http.StatusOK, tplSwagger)
+}