[API] Forgejo API /api/forgejo/v1

(cherry picked from commit 20b56692693e054bb3c04b4ef12b29b0715b4530)
(cherry picked from commit 1574643a6a9634e5b92c033a4bfb69062a86bd05)

Update semantic version according to specification

(cherry picked from commit 22510f41306f9c133a7e99b61f9c38dabfd4b810)

Mise à jour de 'Makefile'

(cherry picked from commit c3d85d8409f1bb18a45659a167cf1ffee057f3b6)
(cherry picked from commit 5ea23098513c068444226af41faf9be9c4c998e6)
(cherry picked from commit ec5217b9d1b94bb04e34ce8c27eecbdc6f3a247a)
(cherry picked from commit 14f08e364b2ad7e3176b45d3ec8da5f5605b4315)
(cherry picked from commit b4465c67b8737aed9fd79a43046aa3795a298e68)

[API] [SEMVER] replace number with version

(cherry picked from commit fba48e64977a75e77c9c6cf8e3f8a679a5e7b733)
(cherry picked from commit 532ec5d8782703b62d7d02312764e50637cd016e)

[API] [SEMVER] [v1.20] less is replaced by css

(cherry picked from commit 01ca3a4f4291cf4c62df42cbd12a00638f3cdc70)
(cherry picked from commit 1d928c3ab2e1fda6082e1400d89ea96d6605ebaa)
(cherry picked from commit a39dc804cd1da86444ed709455857f069475e7db)

Conflicts:
	webpack.config.js
(cherry picked from commit adc68578b3eb41215338125edfca91804706f8a1)
(cherry picked from commit 9b8d98475fd7efcc15bf0d91b0af6ef3aff64508)
(cherry picked from commit 25161039745a63282257eded9616390241af8013)
(cherry picked from commit 18e6287963a0e1863cd08fd514a4e732a1904a68)
(cherry picked from commit e9694e67ab93ad74f7eae3152d88d95e8493e739)
(cherry picked from commit a9763edaf002c8009a2cca4115cb8b926f8cdc85)
(cherry picked from commit e2b550f4fba144f9637a212b56bfe30cac1adb3b)
(cherry picked from commit 2edac36701e8fa1ff67f87dccfa34cfc00ab66de)

[API] Forgejo API /api/forgejo/v1 (squash)

Update semver as v1.20 is entering release candidate mode

(cherry picked from commit 4995098ec3c6eee19a7ad7bc956b71c6e937c04c)
(cherry picked from commit 578ccfdd27d7a280050bdf61d497d07decf98f2f)
(cherry picked from commit 1bf6ac09520490f0a56b9b55d7836c2d8ea5d22c)
(cherry picked from commit 2fe16b2bfed62c0386d0bfe104f7dcc621d1c3be)
(cherry picked from commit 7cd9d027eec5a2b328d06a47f34545943560fe1b)
(cherry picked from commit eaed4be2ae88055a15dcc96564440c301a13ba8e)
(cherry picked from commit cc94f3115f844a0f16064e49e5eb719d33bc4441)
(cherry picked from commit d7a77e35ccfd2d0fc2ba98932296ab7354edd2db)
(cherry picked from commit cd8eb68ab7b3e2eaacf78d370c762f43cc19fd6a)
(cherry picked from commit 68487ac95f742837e7ff38df902834b6173cd9ab)
(cherry picked from commit 616dceb565456d6fac6f58b1c4de43e9d3254090)
(cherry picked from commit 545fe5975b47d2eab348a57b87c6fd4590f33442)
(cherry picked from commit c042cf8eda2dea805138bd64daa7fbe07865ed5a)
(cherry picked from commit ae5e5a7468aa66312055a26841f658574a9b0dd7)
(cherry picked from commit 8034ef5fa2648a127f8c84c572bec02a1ff6bb9f)
(cherry picked from commit aaf0293034468505449d33ab1483ae65b4175754)
(cherry picked from commit daafa8ce58e5e6077da585b13e5190856228a4a3)
(cherry picked from commit 7ca3681d3e2ed5ec1ae44364cba476d642e2b557)
(cherry picked from commit e8ebceafc4c9a229d1963c7a8d64a645fc1e76cd)
(cherry picked from commit 6954d234d37ec6d86bd2c696a35d1842c059b44c)
(cherry picked from commit e3fe904740c6529f468a47218f9516923884c3d2)
(cherry picked from commit 7cedcd99679f88acabeeda000ed944880e4a0d0e)

[API] Move forgejo api file (squash)

- Move the file to accommodate faa28b5a44

(cherry picked from commit 77076b92163ba28129c6dcda5724d42ab3ccd94f)
(cherry picked from commit 1bbfdf308b7eec41c9af71aee8fa324cfce87230)
(cherry picked from commit e90325f6401667aee6383efd66da84c71404e7a3)
(cherry picked from commit 9626abce95f1c0fa8a812118d0eae9d1d27b681c)
(cherry picked from commit 34ae479ae4e44879021c8dc0a750328a3f9a05ec)

Makefile

@@ -88,7 +88,10 @@ else
 endif
 VERSION = ${GITEA_VERSION}
 
-LDFLAGS := $(LDFLAGS) -X "main.MakeVersion=$(MAKE_VERSION)" -X "main.Version=$(GITEA_VERSION)" -X "main.Tags=$(TAGS)"
+# SemVer
+FORGEJO_VERSION := 5.0.0+0-gitea-1.20.0
+
+LDFLAGS := $(LDFLAGS) -X "main.MakeVersion=$(MAKE_VERSION)" -X "main.Version=$(GITEA_VERSION)" -X "main.Tags=$(TAGS)" -X "code.gitea.io/gitea/routers/api/forgejo/v1.ForgejoVersion=$(FORGEJO_VERSION)"
 
 LINUX_ARCHS ?= linux/amd64,linux/386,linux/arm-5,linux/arm-6,linux/arm64
 
@@ -140,6 +143,8 @@ ifdef DEPS_PLAYWRIGHT
 	PLAYWRIGHT_FLAGS += --with-deps
 endif
 
+FORGEJO_API_SPEC := public/assets/forgejo/api.v1.yml
+
 SWAGGER_SPEC := templates/swagger/v1_json.tmpl
 SWAGGER_SPEC_S_TMPL := s|"basePath": *"/api/v1"|"basePath": "{{AppSubUrl \| JSEscape \| Safe}}/api/v1"|g
 SWAGGER_SPEC_S_JSON := s|"basePath": *"{{AppSubUrl \| JSEscape \| Safe}}/api/v1"|"basePath": "/api/v1"|g
@@ -220,6 +225,8 @@ help:
 	@echo " - generate-license                 update license files"
 	@echo " - generate-gitignore               update gitignore files"
 	@echo " - generate-manpage                 generate manpage"
+	@echo " - generate-forgejo-api             generate the forgejo API from spec"
+	@echo " - forgejo-api-validate             check if the forgejo API matches the specs"
 	@echo " - generate-swagger                 generate the swagger spec from code comments"
 	@echo " - swagger-validate                 check if the swagger spec is valid"
 	@echo " - go-licenses                      regenerate go licenses"
@@ -305,6 +312,27 @@ ifneq "$(TAGS)" "$(shell cat $(TAGS_EVIDENCE) 2>/dev/null)"
 TAGS_PREREQ := $(TAGS_EVIDENCE)
 endif
 
+OAPI_CODEGEN_PACKAGE ?= github.com/deepmap/oapi-codegen/cmd/oapi-codegen@v1.12.4
+KIN_OPENAPI_CODEGEN_PACKAGE ?= github.com/getkin/kin-openapi/cmd/validate@v0.114.0
+FORGEJO_API_SERVER = routers/api/forgejo/v1/generated.go
+
+.PHONY: generate-forgejo-api
+generate-forgejo-api: $(FORGEJO_API_SPEC)
+	$(GO) run $(OAPI_CODEGEN_PACKAGE) -package v1 -generate chi-server,types $< > $(FORGEJO_API_SERVER)
+
+.PHONY: forgejo-api-check
+forgejo-api-check: generate-forgejo-api
+	@diff=$$(git diff $(FORGEJO_API_SERVER) ; \
+	if [ -n "$$diff" ]; then \
+		echo "Please run 'make generate-forgejo-api' and commit the result:"; \
+		echo "$${diff}"; \
+		exit 1; \
+	fi
+
+.PHONY: forgejo-api-validate
+forgejo-api-validate:
+	$(GO) run $(KIN_OPENAPI_CODEGEN_PACKAGE) $(FORGEJO_API_SPEC)
+
 .PHONY: generate-swagger
 generate-swagger: $(SWAGGER_SPEC)
 
@@ -335,7 +363,7 @@ checks: checks-frontend checks-backend
 checks-frontend: lockfile-check svg-check
 
 .PHONY: checks-backend
-checks-backend: tidy-check swagger-check fmt-check misspell-check swagger-validate security-check
+checks-backend: tidy-check swagger-check fmt-check misspell-check forgejo-api-validate swagger-validate security-check
 
 .PHONY: lint
 lint: lint-frontend lint-backend

public/assets/forgejo/api.v1.yml

@@ -0,0 +1,40 @@
+openapi: 3.0.0
+info:
+  title: Forgejo API
+  description: |-
+    Forgejo REST API
+
+  contact:
+    email: contact@forgejo.org
+  license:
+    name: MIT
+    url: https://codeberg.org/forgejo/forgejo/src/branch/forgejo/LICENSE
+  version: 1.0.0
+externalDocs:
+  description: Find out more about Forgejo
+  url: http://forgejo.org
+servers:
+  - url: /api/forgejo/v1
+paths:
+  /version:
+    get:
+      summary: API version
+      description: Semantic version of the Forgejo API
+      operationId: getVersion
+      responses:
+        '200':
+          description: successful operation
+          content:
+            application/json:
+              schema:
+                type: array
+                items:
+                  $ref: '#/components/schemas/Version'
+components:
+  schemas:
+    Version:
+      type: object
+      properties:
+        version:
+          type: string
+

routers/api/forgejo/v1/api.go

@@ -0,0 +1,16 @@
+// Copyright 2023 The Forgejo Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package v1
+
+import (
+	"code.gitea.io/gitea/modules/web"
+)
+
+func Routes() *web.Route {
+	m := web.NewRoute()
+	forgejo := NewForgejo()
+	m.Get("", Root)
+	m.Get("/version", forgejo.GetVersion)
+	return m
+}

routers/api/forgejo/v1/forgejo.go

@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: MIT
+
+package v1
+
+import (
+	"net/http"
+
+	"code.gitea.io/gitea/modules/json"
+)
+
+type Forgejo struct{}
+
+var _ ServerInterface = &Forgejo{}
+
+func NewForgejo() *Forgejo {
+	return &Forgejo{}
+}
+
+var ForgejoVersion = "development"
+
+func (f *Forgejo) GetVersion(w http.ResponseWriter, r *http.Request) {
+	w.WriteHeader(http.StatusOK)
+	_ = json.NewEncoder(w).Encode(Version{&ForgejoVersion})
+}

routers/api/forgejo/v1/generated.go

@@ -0,0 +1,167 @@
+// Package v1 provides primitives to interact with the openapi HTTP API.
+//
+// Code generated by github.com/deepmap/oapi-codegen version v1.12.4 DO NOT EDIT.
+package v1
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/go-chi/chi/v5"
+)
+
+// Version defines model for Version.
+type Version struct {
+	Version *string `json:"version,omitempty"`
+}
+
+// ServerInterface represents all server handlers.
+type ServerInterface interface {
+	// API version
+	// (GET /version)
+	GetVersion(w http.ResponseWriter, r *http.Request)
+}
+
+// ServerInterfaceWrapper converts contexts to parameters.
+type ServerInterfaceWrapper struct {
+	Handler            ServerInterface
+	HandlerMiddlewares []MiddlewareFunc
+	ErrorHandlerFunc   func(w http.ResponseWriter, r *http.Request, err error)
+}
+
+type MiddlewareFunc func(http.Handler) http.Handler
+
+// GetVersion operation middleware
+func (siw *ServerInterfaceWrapper) GetVersion(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+
+	var handler http.Handler = http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		siw.Handler.GetVersion(w, r)
+	})
+
+	for _, middleware := range siw.HandlerMiddlewares {
+		handler = middleware(handler)
+	}
+
+	handler.ServeHTTP(w, r.WithContext(ctx))
+}
+
+type UnescapedCookieParamError struct {
+	ParamName string
+	Err       error
+}
+
+func (e *UnescapedCookieParamError) Error() string {
+	return fmt.Sprintf("error unescaping cookie parameter '%s'", e.ParamName)
+}
+
+func (e *UnescapedCookieParamError) Unwrap() error {
+	return e.Err
+}
+
+type UnmarshallingParamError struct {
+	ParamName string
+	Err       error
+}
+
+func (e *UnmarshallingParamError) Error() string {
+	return fmt.Sprintf("Error unmarshalling parameter %s as JSON: %s", e.ParamName, e.Err.Error())
+}
+
+func (e *UnmarshallingParamError) Unwrap() error {
+	return e.Err
+}
+
+type RequiredParamError struct {
+	ParamName string
+}
+
+func (e *RequiredParamError) Error() string {
+	return fmt.Sprintf("Query argument %s is required, but not found", e.ParamName)
+}
+
+type RequiredHeaderError struct {
+	ParamName string
+	Err       error
+}
+
+func (e *RequiredHeaderError) Error() string {
+	return fmt.Sprintf("Header parameter %s is required, but not found", e.ParamName)
+}
+
+func (e *RequiredHeaderError) Unwrap() error {
+	return e.Err
+}
+
+type InvalidParamFormatError struct {
+	ParamName string
+	Err       error
+}
+
+func (e *InvalidParamFormatError) Error() string {
+	return fmt.Sprintf("Invalid format for parameter %s: %s", e.ParamName, e.Err.Error())
+}
+
+func (e *InvalidParamFormatError) Unwrap() error {
+	return e.Err
+}
+
+type TooManyValuesForParamError struct {
+	ParamName string
+	Count     int
+}
+
+func (e *TooManyValuesForParamError) Error() string {
+	return fmt.Sprintf("Expected one value for %s, got %d", e.ParamName, e.Count)
+}
+
+// Handler creates http.Handler with routing matching OpenAPI spec.
+func Handler(si ServerInterface) http.Handler {
+	return HandlerWithOptions(si, ChiServerOptions{})
+}
+
+type ChiServerOptions struct {
+	BaseURL          string
+	BaseRouter       chi.Router
+	Middlewares      []MiddlewareFunc
+	ErrorHandlerFunc func(w http.ResponseWriter, r *http.Request, err error)
+}
+
+// HandlerFromMux creates http.Handler with routing matching OpenAPI spec based on the provided mux.
+func HandlerFromMux(si ServerInterface, r chi.Router) http.Handler {
+	return HandlerWithOptions(si, ChiServerOptions{
+		BaseRouter: r,
+	})
+}
+
+func HandlerFromMuxWithBaseURL(si ServerInterface, r chi.Router, baseURL string) http.Handler {
+	return HandlerWithOptions(si, ChiServerOptions{
+		BaseURL:    baseURL,
+		BaseRouter: r,
+	})
+}
+
+// HandlerWithOptions creates http.Handler with additional options
+func HandlerWithOptions(si ServerInterface, options ChiServerOptions) http.Handler {
+	r := options.BaseRouter
+
+	if r == nil {
+		r = chi.NewRouter()
+	}
+	if options.ErrorHandlerFunc == nil {
+		options.ErrorHandlerFunc = func(w http.ResponseWriter, r *http.Request, err error) {
+			http.Error(w, err.Error(), http.StatusBadRequest)
+		}
+	}
+	wrapper := ServerInterfaceWrapper{
+		Handler:            si,
+		HandlerMiddlewares: options.Middlewares,
+		ErrorHandlerFunc:   options.ErrorHandlerFunc,
+	}
+
+	r.Group(func(r chi.Router) {
+		r.Get(options.BaseURL+"/version", wrapper.GetVersion)
+	})
+
+	return r
+}

routers/api/forgejo/v1/root.go

@@ -0,0 +1,14 @@
+// Copyright The Forgejo Authors.
+// SPDX-License-Identifier: MIT
+
+package v1
+
+import (
+	"net/http"
+)
+
+func Root(w http.ResponseWriter, r *http.Request) {
+	// https://www.rfc-editor.org/rfc/rfc8631
+	w.Header().Set("Link", "</assets/forgejo/api.v1.yml>; rel=\"service-desc\"")
+	w.WriteHeader(http.StatusNoContent)
+}

routers/init.go

@@ -27,6 +27,7 @@ import (
 	"code.gitea.io/gitea/modules/translation"
 	"code.gitea.io/gitea/modules/web"
 	actions_router "code.gitea.io/gitea/routers/api/actions"
+	forgejo "code.gitea.io/gitea/routers/api/forgejo/v1"
 	packages_router "code.gitea.io/gitea/routers/api/packages"
 	apiv1 "code.gitea.io/gitea/routers/api/v1"
 	"code.gitea.io/gitea/routers/common"
@@ -175,6 +176,7 @@ func NormalRoutes() *web.Route {
 
 	r.Mount("/", web_routers.Routes())
 	r.Mount("/api/v1", apiv1.Routes())
+	r.Mount("/api/forgejo/v1", forgejo.Routes())
 	r.Mount("/api/internal", private.Routes())
 
 	r.Post("/-/fetch-redirect", common.FetchRedirectDelegate)

routers/web/misc/swagger-forgejo.go

@@ -0,0 +1,19 @@
+// Copyright 2017 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package misc
+
+import (
+	"net/http"
+
+	"code.gitea.io/gitea/modules/base"
+	"code.gitea.io/gitea/modules/context"
+)
+
+// tplSwagger swagger page template
+const tplForgejoSwagger base.TplName = "swagger/forgejo-ui"
+
+func SwaggerForgejo(ctx *context.Context) {
+	ctx.Data["APIVersion"] = "v1"
+	ctx.HTML(http.StatusOK, tplForgejoSwagger)
+}

routers/web/web.go

@@ -261,6 +261,7 @@ func Routes() *web.Route {
 	if setting.API.EnableSwagger {
 		// Note: The route is here but no in API routes because it renders a web page
 		routes.Get("/api/swagger", append(mid, misc.Swagger)...) // Render V1 by default
+		routes.Get("/api/forgejo/swagger", append(mid, misc.SwaggerForgejo)...)
 	}
 
 	// TODO: These really seem like things that could be folded into Contexter or as helper functions

templates/swagger/forgejo-ui.tmpl

@@ -0,0 +1,13 @@
+<!DOCTYPE html>
+<html lang="en">
+	<head>
+		<meta charset="UTF-8">
+		<title>Forgejo API</title>
+		<link href="{{AssetUrlPrefix}}/css/swagger.css?v={{AssetVersion}}" rel="stylesheet">
+	</head>
+	<body>
+		<a class="swagger-back-link" href="{{AppUrl}}">{{svg "octicon-reply"}}{{.locale.Tr "return_to_gitea"}}</a>
+		<div id="swagger-ui" data-source="{{AssetUrlPrefix}}/forgejo/api.{{.APIVersion}}.yml"></div>
+		<script src="{{AssetUrlPrefix}}/js/forgejoswagger.js?v={{AssetVersion}}"></script>
+	</body>
+</html>

tests/integration/api_forgejo_root_test.go

@@ -0,0 +1,21 @@
+// Copyright The Forgejo Authors.
+// SPDX-License-Identifier: MIT
+
+package integration
+
+import (
+	"net/http"
+	"testing"
+
+	"code.gitea.io/gitea/tests"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAPIForgejoRoot(t *testing.T) {
+	defer tests.PrepareTestEnv(t)()
+
+	req := NewRequest(t, "GET", "/api/forgejo/v1")
+	resp := MakeRequest(t, req, http.StatusNoContent)
+	assert.Contains(t, resp.Header().Get("Link"), "/assets/forgejo/api.v1.yml")
+}

tests/integration/api_forgejo_version_test.go

@@ -0,0 +1,25 @@
+// Copyright The Forgejo Authors.
+// SPDX-License-Identifier: MIT
+
+package integration
+
+import (
+	"net/http"
+	"testing"
+
+	"code.gitea.io/gitea/routers/api/forgejo/v1"
+	"code.gitea.io/gitea/tests"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestAPIForgejoVersion(t *testing.T) {
+	defer tests.PrepareTestEnv(t)()
+
+	req := NewRequest(t, "GET", "/api/forgejo/v1/version")
+	resp := MakeRequest(t, req, http.StatusOK)
+
+	var version v1.Version
+	DecodeJSON(t, resp, &version)
+	assert.Equal(t, "development", *version.Version)
+}

web_src/js/standalone/forgejo-swagger.js

@@ -0,0 +1,22 @@
+import SwaggerUI from 'swagger-ui-dist/swagger-ui-es-bundle.js';
+import 'swagger-ui-dist/swagger-ui.css';
+
+window.addEventListener('load', async () => {
+  const url = document.getElementById('swagger-ui').getAttribute('data-source');
+
+  const ui = SwaggerUI({
+    url: url,
+    dom_id: '#swagger-ui',
+    deepLinking: true,
+    docExpansion: 'none',
+    defaultModelRendering: 'model', // don't show examples by default, because they may be incomplete
+    presets: [
+      SwaggerUI.presets.apis
+    ],
+    plugins: [
+      SwaggerUI.plugins.DownloadUrl
+    ]
+  });
+
+  window.ui = ui;
+});

webpack.config.js

@@ -76,6 +76,10 @@ export default {
     webcomponents: [
       fileURLToPath(new URL('web_src/js/webcomponents/webcomponents.js', import.meta.url)),
     ],
+    forgejoswagger: [ // Forgejo swagger is OpenAPI 3.0.0 and has specific parameters
+      fileURLToPath(new URL('web_src/js/standalone/forgejo-swagger.js', import.meta.url)),
+      fileURLToPath(new URL('web_src/css/standalone/swagger.css', import.meta.url)),
+    ],
     swagger: [
       fileURLToPath(new URL('web_src/js/standalone/swagger.js', import.meta.url)),
       fileURLToPath(new URL('web_src/css/standalone/swagger.css', import.meta.url)),