Swagger.v1.json template (#3572)

* Turn swagger.v1.json into template

* Rename ENABLE_SWAGGER_ENDPOINT option to ENABLE_SWAGGER

Makefile

@@ -42,6 +42,10 @@ TAGS ?=
 
 TMPDIR := $(shell mktemp -d 2>/dev/null || mktemp -d -t 'gitea-temp')
 
+SWAGGER_SPEC := templates/swagger/v1_json.tmpl
+SWAGGER_SPEC_S_TMPL := s|"basePath":\s*"/api/v1"|"basePath": "{{AppSubUrl}}/api/v1"|g
+SWAGGER_SPEC_S_JSON := s|"basePath":\s*"{{AppSubUrl}}/api/v1"|"basePath": "/api/v1"|g
+
 TEST_MYSQL_HOST ?= mysql:3306
 TEST_MYSQL_DBNAME ?= testgitea
 TEST_MYSQL_USERNAME ?= root
@@ -94,11 +98,12 @@ generate-swagger:
 	@hash swagger > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
 		$(GO) get -u github.com/go-swagger/go-swagger/cmd/swagger; \
 	fi
-	swagger generate spec -o ./public/swagger.v1.json
+	swagger generate spec -o './$(SWAGGER_SPEC)'
+	$(SED_INPLACE) '$(SWAGGER_SPEC_S_TMPL)' './$(SWAGGER_SPEC)'
 
 .PHONY: swagger-check
 swagger-check: generate-swagger
-	@diff=$$(git diff public/swagger.v1.json); \
+	@diff=$$(git diff '$(SWAGGER_SPEC)'); \
 	if [ -n "$$diff" ]; then \
 		echo "Please run 'make generate-swagger' and commit the result:"; \
 		echo "$${diff}"; \
@@ -110,7 +115,9 @@ swagger-validate:
 	@hash swagger > /dev/null 2>&1; if [ $$? -ne 0 ]; then \
 		$(GO) get -u github.com/go-swagger/go-swagger/cmd/swagger; \
 	fi
-	swagger validate ./public/swagger.v1.json
+	$(SED_INPLACE) '$(SWAGGER_SPEC_S_JSON)' './$(SWAGGER_SPEC)'
+	swagger validate './$(SWAGGER_SPEC)'
+	$(SED_INPLACE) '$(SWAGGER_SPEC_S_TMPL)' './$(SWAGGER_SPEC)'
 
 .PHONY: errcheck
 errcheck:

custom/conf/app.ini.sample

@@ -581,8 +581,8 @@ DEFAULT_INTERVAL = 8h
 MIN_INTERVAL = 10m
 
 [api]
-; Enables /api/swagger, /api/v1/swagger etc. endpoints. True or false; default is true.
-ENABLE_SWAGGER_ENDPOINT = true
+; Enables Swagger. True or false; default is true.
+ENABLE_SWAGGER = true
 ; Max number of items in a page
 MAX_RESPONSE_ITEMS = 50
 

docs/.gitignore

@@ -1,2 +1,3 @@
 public/
+templates/swagger/v1_json.tmpl
 themes/

modules/context/context.go

@@ -264,7 +264,7 @@ func Contexter() macaron.Handler {
 		ctx.Data["ShowRegistrationButton"] = setting.Service.ShowRegistrationButton
 		ctx.Data["ShowFooterBranding"] = setting.ShowFooterBranding
 		ctx.Data["ShowFooterVersion"] = setting.ShowFooterVersion
-		ctx.Data["EnableSwaggerEndpoint"] = setting.API.EnableSwaggerEndpoint
+		ctx.Data["EnableSwagger"] = setting.API.EnableSwagger
 		ctx.Data["EnableOpenIDSignIn"] = setting.Service.EnableOpenIDSignIn
 
 		c.Map(ctx)

modules/setting/setting.go

@@ -527,11 +527,11 @@ var (
 
 	// API settings
 	API = struct {
-		EnableSwaggerEndpoint bool
-		MaxResponseItems      int
+		EnableSwagger    bool
+		MaxResponseItems int
 	}{
-		EnableSwaggerEndpoint: true,
-		MaxResponseItems:      50,
+		EnableSwagger:    true,
+		MaxResponseItems: 50,
 	}
 
 	U2F = struct {

modules/templates/dynamic.go

@@ -22,8 +22,8 @@ var (
 	templates = template.New("")
 )
 
-// Renderer implements the macaron handler for serving the templates.
-func Renderer() macaron.Handler {
+// HTMLRenderer implements the macaron handler for serving HTML templates.
+func HTMLRenderer() macaron.Handler {
 	return macaron.Renderer(macaron.RenderOptions{
 		Funcs:     NewFuncMap(),
 		Directory: path.Join(setting.StaticRootPath, "templates"),
@@ -33,6 +33,18 @@ func Renderer() macaron.Handler {
 	})
 }
 
+// JSONRenderer implements the macaron handler for serving JSON templates.
+func JSONRenderer() macaron.Handler {
+	return macaron.Renderer(macaron.RenderOptions{
+		Funcs:     NewFuncMap(),
+		Directory: path.Join(setting.StaticRootPath, "templates"),
+		AppendDirectories: []string{
+			path.Join(setting.CustomPath, "templates"),
+		},
+		HTMLContentType: "application/json",
+	})
+}
+
 // Mailer provides the templates required for sending notification mails.
 func Mailer() *template.Template {
 	for _, funcs := range NewFuncMap() {

modules/templates/static.go

@@ -43,8 +43,7 @@ func (templates templateFileSystem) Get(name string) (io.Reader, error) {
 	return nil, fmt.Errorf("file '%s' not found", name)
 }
 
-// Renderer implements the macaron handler for serving the templates.
-func Renderer() macaron.Handler {
+func NewTemplateFileSystem() templateFileSystem {
 	fs := templateFileSystem{}
 	fs.files = make([]macaron.TemplateFile, 0, 10)
 
@@ -110,9 +109,25 @@ func Renderer() macaron.Handler {
 		}
 	}
 
+	return fs
+}
+
+var tplFileSys = NewTemplateFileSystem()
+
+// HTMLRenderer implements the macaron handler for serving HTML templates.
+func HTMLRenderer() macaron.Handler {
 	return macaron.Renderer(macaron.RenderOptions{
 		Funcs:              NewFuncMap(),
-		TemplateFileSystem: fs,
+		TemplateFileSystem: tplFileSys,
+	})
+}
+
+// JSONRenderer implements the macaron handler for serving JSON templates.
+func JSONRenderer() macaron.Handler {
+	return macaron.Renderer(macaron.RenderOptions{
+		Funcs:              NewFuncMap(),
+		TemplateFileSystem: tplFileSys,
+		HTMLContentType:    "application/json",
 	})
 }
 

routers/api/v1/api.go

@@ -278,13 +278,13 @@ func mustAllowPulls(ctx *context.Context) {
 func RegisterRoutes(m *macaron.Macaron) {
 	bind := binding.Bind
 
-	if setting.API.EnableSwaggerEndpoint {
+	if setting.API.EnableSwagger {
 		m.Get("/swagger", misc.Swagger) //Render V1 by default
 	}
 
 	m.Group("/v1", func() {
 		// Miscellaneous
-		if setting.API.EnableSwaggerEndpoint {
+		if setting.API.EnableSwagger {
 			m.Get("/swagger", misc.Swagger)
 		}
 		m.Get("/version", misc.Version)

routers/api/v1/misc/swagger.go

@@ -10,7 +10,7 @@ import (
 )
 
 // tplSwagger swagger page template
-const tplSwagger base.TplName = "swagger"
+const tplSwagger base.TplName = "swagger/ui"
 
 // Swagger render swagger-ui page with v1 json
 func Swagger(ctx *context.Context) {

routers/routes/routes.go

@@ -79,7 +79,7 @@ func NewMacaron() *macaron.Macaron {
 		},
 	))
 
-	m.Use(templates.Renderer())
+	m.Use(templates.HTMLRenderer())
 	models.InitMailRender(templates.Mailer())
 
 	localeNames, err := options.Dir("locale")
@@ -755,6 +755,10 @@ func RegisterRoutes(m *macaron.Macaron) {
 		m.Post("/purge", user.NotificationPurgePost)
 	}, reqSignIn)
 
+	if setting.API.EnableSwagger {
+		m.Get("/swagger.v1.json", templates.JSONRenderer(), routers.SwaggerV1Json)
+	}
+
 	m.Group("/api", func() {
 		apiv1.RegisterRoutes(m)
 	}, ignSignIn)

routers/swagger_json.go

@@ -0,0 +1,14 @@
+package routers
+
+import (
+	"code.gitea.io/gitea/modules/base"
+	"code.gitea.io/gitea/modules/context"
+)
+
+// tplSwaggerV1Json swagger v1 json template
+const tplSwaggerV1Json base.TplName = "swagger/v1_json"
+
+// SwaggerV1Json render swagger v1 json
+func SwaggerV1Json(ctx *context.Context) {
+	ctx.HTML(200, tplSwaggerV1Json)
+}

templates/base/footer.tmpl

@@ -29,7 +29,7 @@
 					</div>
 				</div>
 				<a href="{{AppSubUrl}}/vendor/librejs.html" data-jslicense="1">JavaScript licenses</a>
-				{{if .EnableSwaggerEndpoint}}<a href="{{AppSubUrl}}/api/swagger">API</a>{{end}}
+				{{if .EnableSwagger}}<a href="{{AppSubUrl}}/api/swagger">API</a>{{end}}
 				<a target="_blank" rel="noopener noreferrer" href="https://gitea.io">{{.i18n.Tr "website"}}</a>
 				{{if (or .ShowFooterVersion .PageIsAdmin)}}<span class="version">{{GoVer}}</span>{{end}}
 			</div>

templates/swagger/v1_json.tmpl

@@ -21,7 +21,7 @@
     },
     "version": "1.1.1"
   },
-  "basePath": "/api/v1",
+  "basePath": "{{AppSubUrl}}/api/v1",
   "paths": {
     "/admin/users": {
       "post": {