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rcd: refactor rclone rc server to use lib/http

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This commit is contained in:
Nick Craig-Wood 2022-12-11 14:47:47 +00:00
parent a9ce86f9a3
commit 08a1ca434b
6 changed files with 173 additions and 83 deletions
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3
cmd/rcd/rcd.go
View File

@ -11,6 +11,7 @@ import (
"github.com/rclone/rclone/fs/rc/rcflags"
"github.com/rclone/rclone/fs/rc/rcserver"
"github.com/rclone/rclone/lib/atexit"
libhttp "github.com/rclone/rclone/lib/http"
"github.com/spf13/cobra"
)
@ -31,7 +32,7 @@ for GET requests on the URL passed in. It will also open the URL in
the browser when rclone is run.
See the [rc documentation](/rc/) for more info on the rc flags.
`,
` + libhttp.Help + libhttp.TemplateHelp + libhttp.AuthHelp,
Annotations: map[string]string{
"versionIntroduced": "v1.45",
},

2
fs/rc/config_test.go
View File

@ -7,7 +7,6 @@ import (
"fmt"
"testing"
"github.com/rclone/rclone/cmd/serve/httplib"
"github.com/rclone/rclone/fs"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
@ -79,7 +78,6 @@ func TestOptionsGetMarshal(t *testing.T) {
ci := fs.GetConfig(ctx)
// Add some real options
AddOption("http", &httplib.DefaultOpt)
AddOption("main", ci)
AddOption("rc", &DefaultOpt)

12
fs/rc/rc.go
View File

@ -13,12 +13,14 @@ import (
_ "net/http/pprof" // install the pprof http handlers
"time"
"github.com/rclone/rclone/cmd/serve/httplib"
libhttp "github.com/rclone/rclone/lib/http"
)
// Options contains options for the remote control server
type Options struct {
HTTPOptions httplib.Options
HTTP libhttp.Config
Auth libhttp.AuthConfig
Template libhttp.TemplateConfig
Enabled bool // set to enable the server
Serve bool // set to serve files from remotes
Files string // set to enable serving files locally
@ -36,14 +38,16 @@ type Options struct {
// DefaultOpt is the default values used for Options
var DefaultOpt = Options{
HTTPOptions: httplib.DefaultOpt,
HTTP: libhttp.DefaultCfg(),
Auth: libhttp.DefaultAuthCfg(),
Template: libhttp.DefaultTemplateCfg(),
Enabled: false,
JobExpireDuration: 60 * time.Second,
JobExpireInterval: 10 * time.Second,
}
func init() {
DefaultOpt.HTTPOptions.ListenAddr = "localhost:5572"
DefaultOpt.HTTP.ListenAddr = []string{"localhost:5572"}
}
// WriteJSON writes JSON in out to w

5
fs/rc/rcflags/rcflags.go
View File

@ -2,7 +2,6 @@
package rcflags
import (
"github.com/rclone/rclone/cmd/serve/httplib/httpflags"
"github.com/rclone/rclone/fs/config/flags"
"github.com/rclone/rclone/fs/rc"
"github.com/spf13/pflag"
@ -29,5 +28,7 @@ func AddFlags(flagSet *pflag.FlagSet) {
flags.BoolVarP(flagSet, &Opt.EnableMetrics, "rc-enable-metrics", "", false, "Enable prometheus metrics on /metrics")
flags.DurationVarP(flagSet, &Opt.JobExpireDuration, "rc-job-expire-duration", "", Opt.JobExpireDuration, "Expire finished async jobs older than this value")
flags.DurationVarP(flagSet, &Opt.JobExpireInterval, "rc-job-expire-interval", "", Opt.JobExpireInterval, "Interval to check for expired async jobs")
httpflags.AddFlagsPrefix(flagSet, "rc-", &Opt.HTTPOptions)
Opt.HTTP.AddFlagsPrefix(flagSet, "rc-")
Opt.Auth.AddFlagsPrefix(flagSet, "rc-")
Opt.Template.AddFlagsPrefix(flagSet, "rc-")
}

140
fs/rc/rcserver/rcserver.go
View File

@ -18,9 +18,9 @@ import (
"sync"
"time"
"github.com/go-chi/chi/v5/middleware"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/client_golang/prometheus/promhttp"
"github.com/rclone/rclone/cmd/serve/httplib"
"github.com/rclone/rclone/fs"
"github.com/rclone/rclone/fs/accounting"
"github.com/rclone/rclone/fs/cache"
@ -31,6 +31,7 @@ import (
"github.com/rclone/rclone/fs/rc/jobs"
"github.com/rclone/rclone/fs/rc/rcflags"
"github.com/rclone/rclone/fs/rc/webgui"
libhttp "github.com/rclone/rclone/lib/http"
"github.com/rclone/rclone/lib/http/serve"
"github.com/rclone/rclone/lib/random"
"github.com/skratchdot/open-golang/open"
@ -59,7 +60,10 @@ func Start(ctx context.Context, opt *rc.Options) (*Server, error) {
jobs.SetOpt(opt) // set the defaults for jobs
if opt.Enabled {
// Serve on the DefaultServeMux so can have global registrations appear
s := newServer(ctx, opt, http.DefaultServeMux)
s, err := newServer(ctx, opt, http.DefaultServeMux)
if err != nil {
return nil, err
}
return s, s.Serve()
}
return nil, nil
@ -67,14 +71,14 @@ func Start(ctx context.Context, opt *rc.Options) (*Server, error) {
// Server contains everything to run the rc server
type Server struct {
*httplib.Server
ctx context.Context // for global config
server *libhttp.Server
files http.Handler
pluginsHandler http.Handler
opt *rc.Options
}
func newServer(ctx context.Context, opt *rc.Options, mux *http.ServeMux) *Server {
func newServer(ctx context.Context, opt *rc.Options, mux *http.ServeMux) (*Server, error) {
fileHandler := http.Handler(nil)
pluginsHandler := http.Handler(nil)
// Add some more mime types which are often missing
@ -97,16 +101,16 @@ func newServer(ctx context.Context, opt *rc.Options, mux *http.ServeMux) *Server
if opt.NoAuth {
fs.Logf(nil, "It is recommended to use web gui with auth.")
} else {
if opt.HTTPOptions.BasicUser == "" && opt.HTTPOptions.HtPasswd == "" {
opt.HTTPOptions.BasicUser = "gui"
fs.Infof(nil, "No username specified. Using default username: %s \n", rcflags.Opt.HTTPOptions.BasicUser)
if opt.Auth.BasicUser == "" && opt.Auth.HtPasswd == "" {
opt.Auth.BasicUser = "gui"
fs.Infof(nil, "No username specified. Using default username: %s \n", rcflags.Opt.Auth.BasicUser)
}
if opt.HTTPOptions.BasicPass == "" && opt.HTTPOptions.HtPasswd == "" {
if opt.Auth.BasicPass == "" && opt.Auth.HtPasswd == "" {
randomPass, err := random.Password(128)
if err != nil {
log.Fatalf("Failed to make password: %v", err)
}
opt.HTTPOptions.BasicPass = randomPass
opt.Auth.BasicPass = randomPass
fs.Infof(nil, "No password specified. Using random password: %s \n", randomPass)
}
}
@ -119,53 +123,76 @@ func newServer(ctx context.Context, opt *rc.Options, mux *http.ServeMux) *Server
}
s := &Server{
Server: httplib.NewServer(mux, &opt.HTTPOptions),
ctx: ctx,
opt: opt,
files: fileHandler,
pluginsHandler: pluginsHandler,
}
mux.HandleFunc("/", s.handler)
return s
var err error
s.server, err = libhttp.NewServer(ctx,
libhttp.WithConfig(opt.HTTP),
libhttp.WithAuth(opt.Auth),
libhttp.WithTemplate(opt.Template),
)
if err != nil {
return nil, fmt.Errorf("failed to init server: %w", err)
}
router := s.server.Router()
router.Use(
middleware.SetHeader("Accept-Ranges", "bytes"),
middleware.SetHeader("Server", "rclone/"+fs.Version),
)
// Add the debug handler which is installed in the default mux
router.Handle("/debug/*", mux)
// FIXME split these up into individual functions
router.Get("/*", s.handler)
router.Head("/*", s.handler)
router.Post("/*", s.handler)
router.Options("/*", s.handler)
return s, nil
}
// Serve runs the http server in the background.
//
// Use s.Close() and s.Wait() to shutdown server
func (s *Server) Serve() error {
err := s.Server.Serve()
if err != nil {
return err
}
fs.Logf(nil, "Serving remote control on %s", s.URL())
// Open the files in the browser if set
if s.files != nil {
openURL, err := url.Parse(s.URL())
if err != nil {
return fmt.Errorf("invalid serving URL: %w", err)
}
// Add username, password into the URL if they are set
user, pass := s.opt.HTTPOptions.BasicUser, s.opt.HTTPOptions.BasicPass
if user != "" && pass != "" {
openURL.User = url.UserPassword(user, pass)
s.server.Serve()
// Base64 encode username and password to be sent through url
loginToken := user + ":" + pass
parameters := url.Values{}
encodedToken := base64.URLEncoding.EncodeToString([]byte(loginToken))
fs.Debugf(nil, "login_token %q", encodedToken)
parameters.Add("login_token", encodedToken)
openURL.RawQuery = parameters.Encode()
openURL.RawPath = "/#/login"
}
// Don't open browser if serving in testing environment or required not to do so.
if flag.Lookup("test.v") == nil && !s.opt.WebGUINoOpenBrowser {
if err := open.Start(openURL.String()); err != nil {
fs.Errorf(nil, "Failed to open Web GUI in browser: %v. Manually access it at: %s", err, openURL.String())
for _, URL := range s.server.URLs() {
fs.Logf(nil, "Serving remote control on %s", URL)
// Open the files in the browser if set
if s.files != nil {
openURL, err := url.Parse(URL)
if err != nil {
return fmt.Errorf("invalid serving URL: %w", err)
}
// Add username, password into the URL if they are set
user, pass := s.opt.Auth.BasicUser, s.opt.Auth.BasicPass
if user != "" && pass != "" {
openURL.User = url.UserPassword(user, pass)
// Base64 encode username and password to be sent through url
loginToken := user + ":" + pass
parameters := url.Values{}
encodedToken := base64.URLEncoding.EncodeToString([]byte(loginToken))
fs.Debugf(nil, "login_token %q", encodedToken)
parameters.Add("login_token", encodedToken)
openURL.RawQuery = parameters.Encode()
openURL.RawPath = "/#/login"
}
// Don't open browser if serving in testing environment or required not to do so.
if flag.Lookup("test.v") == nil && !s.opt.WebGUINoOpenBrowser {
if err := open.Start(openURL.String()); err != nil {
fs.Errorf(nil, "Failed to open Web GUI in browser: %v. Manually access it at: %s", err, openURL.String())
}
} else {
fs.Logf(nil, "Web GUI is not automatically opening browser. Navigate to %s to use.", openURL.String())
}
} else {
fs.Logf(nil, "Web GUI is not automatically opening browser. Navigate to %s to use.", openURL.String())
}
}
return nil
@ -185,11 +212,7 @@ func writeError(path string, in rc.Params, w http.ResponseWriter, err error, sta
// handler reads incoming requests and dispatches them
func (s *Server) handler(w http.ResponseWriter, r *http.Request) {
urlPath, ok := s.Path(w, r)
if !ok {
return
}
path := strings.TrimLeft(urlPath, "/")
path := strings.TrimLeft(r.URL.Path, "/")
allowOrigin := rcflags.Opt.AccessControlAllowOrigin
if allowOrigin != "" {
@ -200,7 +223,12 @@ func (s *Server) handler(w http.ResponseWriter, r *http.Request) {
})
w.Header().Add("Access-Control-Allow-Origin", allowOrigin)
} else {
w.Header().Add("Access-Control-Allow-Origin", s.URL())
urls := s.server.URLs()
if len(urls) == 1 {
w.Header().Add("Access-Control-Allow-Origin", urls[0])
} else {
fs.Errorf(nil, "Warning, need exactly 1 URL for Access-Control-Allow-Origin, got %d %q", len(urls), urls)
}
}
// echo back access control headers client needs
@ -260,7 +288,7 @@ func (s *Server) handlePost(w http.ResponseWriter, r *http.Request, path string)
}
// Check to see if it requires authorisation
if !s.opt.NoAuth && call.AuthRequired && !s.UsingAuth() {
if !s.opt.NoAuth && call.AuthRequired && !s.server.UsingAuth() {
writeError(path, in, w, fmt.Errorf("authentication must be set up on the rc server to use %q or the --rc-no-auth flag must be in use", path), http.StatusForbidden)
return
}
@ -305,7 +333,7 @@ func (s *Server) handleOptions(w http.ResponseWriter, r *http.Request, path stri
func (s *Server) serveRoot(w http.ResponseWriter, r *http.Request) {
remotes := config.FileSections()
sort.Strings(remotes)
directory := serve.NewDirectory("", s.HTMLTemplate)
directory := serve.NewDirectory("", s.server.HTMLTemplate())
directory.Name = "List of all rclone remotes."
q := url.Values{}
for _, remote := range remotes {
@ -333,7 +361,7 @@ func (s *Server) serveRemote(w http.ResponseWriter, r *http.Request, path string
return
}
// Make the entries for display
directory := serve.NewDirectory(path, s.HTMLTemplate)
directory := serve.NewDirectory(path, s.server.HTMLTemplate())
for _, entry := range entries {
_, isDir := entry.(fs.Directory)
//directory.AddHTMLEntry(entry.Remote(), isDir, entry.Size(), entry.ModTime(r.Context()))
@ -401,3 +429,13 @@ func (s *Server) handleGet(w http.ResponseWriter, r *http.Request, path string)
}
http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
}
// Wait blocks while the server is serving requests
func (s *Server) Wait() {
s.server.Wait()
}
// Shutdown gracefully shuts down the server
func (s *Server) Shutdown() error {
return s.server.Shutdown()
}

94
fs/rc/rcserver/rcserver_test.go
View File

@ -13,14 +13,13 @@ import (
"testing"
"time"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
_ "github.com/rclone/rclone/backend/local"
"github.com/rclone/rclone/fs"
"github.com/rclone/rclone/fs/accounting"
"github.com/rclone/rclone/fs/config/configfile"
"github.com/rclone/rclone/fs/rc"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
const (
@ -49,24 +48,24 @@ func TestMain(m *testing.M) {
// We'll do the majority of the testing with the httptest framework
func TestRcServer(t *testing.T) {
opt := rc.DefaultOpt
opt.HTTPOptions.ListenAddr = testBindAddress
opt.HTTPOptions.Template = testTemplate
opt.HTTP.ListenAddr = []string{testBindAddress}
opt.Template.Path = testTemplate
opt.Enabled = true
opt.Serve = true
opt.Files = testFs
mux := http.NewServeMux()
rcServer := newServer(context.Background(), &opt, mux)
rcServer, err := newServer(context.Background(), &opt, mux)
require.NoError(t, err)
assert.NoError(t, rcServer.Serve())
defer func() {
rcServer.Close()
assert.NoError(t, rcServer.Shutdown())
rcServer.Wait()
}()
testURL := rcServer.Server.URL()
testURL := rcServer.server.URLs()[0]
// Do the simplest possible test to check the server is alive
// Do it a few times to wait for the server to start
var resp *http.Response
var err error
for i := 0; i < 10; i++ {
resp, err = http.Get(testURL + "file.txt")
if err == nil {
@ -89,6 +88,8 @@ func TestRcServer(t *testing.T) {
type testRun struct {
Name string
URL string
User string
Pass string
Status int
Method string
Range string
@ -103,9 +104,11 @@ type testRun struct {
func testServer(t *testing.T, tests []testRun, opt *rc.Options) {
ctx := context.Background()
configfile.Install()
mux := http.NewServeMux()
opt.HTTPOptions.Template = testTemplate
rcServer := newServer(ctx, opt, mux)
opt.Template.Path = testTemplate
rcServer, err := newServer(ctx, opt, http.DefaultServeMux)
require.NoError(t, err)
testURL := rcServer.server.URLs()[0]
mux := rcServer.server.Router()
for _, test := range tests {
t.Run(test.Name, func(t *testing.T) {
method := test.Method
@ -125,9 +128,12 @@ func testServer(t *testing.T, tests []testRun, opt *rc.Options) {
if test.ContentType != "" {
req.Header.Add("Content-Type", test.ContentType)
}
if test.User != "" && test.Pass != "" {
req.SetBasicAuth(test.User, test.Pass)
}
w := httptest.NewRecorder()
rcServer.handler(w, req)
mux.ServeHTTP(w, req)
resp := w.Result()
assert.Equal(t, test.Status, resp.StatusCode)
@ -141,6 +147,9 @@ func testServer(t *testing.T, tests []testRun, opt *rc.Options) {
}
for k, v := range test.Headers {
if v == "testURL" {
v = testURL
}
assert.Equal(t, v, resp.Header.Get(k), k)
}
})
@ -151,6 +160,7 @@ func testServer(t *testing.T, tests []testRun, opt *rc.Options) {
func newTestOpt() rc.Options {
opt := rc.DefaultOpt
opt.Enabled = true
opt.HTTP.ListenAddr = []string{testBindAddress}
return opt
}
@ -550,7 +560,7 @@ func TestMethods(t *testing.T) {
Status: http.StatusOK,
Expected: "",
Headers: map[string]string{
"Access-Control-Allow-Origin": "http://localhost:5572/",
"Access-Control-Allow-Origin": "testURL",
"Access-Control-Request-Method": "POST, OPTIONS, GET, HEAD",
"Access-Control-Allow-Headers": "authorization, Content-Type",
},
@ -559,12 +569,7 @@ func TestMethods(t *testing.T) {
URL: "",
Method: "POTATO",
Status: http.StatusMethodNotAllowed,
Expected: `{
"error": "method \"POTATO\" not allowed",
"input": null,
"path": "",
"status": 405
}
Expected: `Method Not Allowed
`,
}}
opt := newTestOpt()
@ -732,20 +737,40 @@ func TestNoAuth(t *testing.T) {
func TestWithUserPass(t *testing.T) {
tests := []testRun{{
Name: "auth",
Name: "authMissing",
URL: "rc/noopauth",
Method: "POST",
Body: `{}`,
ContentType: "application/javascript",
Status: http.StatusUnauthorized,
Expected: "401 Unauthorized\n",
}, {
Name: "authWrong",
URL: "rc/noopauth",
Method: "POST",
Body: `{}`,
ContentType: "application/javascript",
Status: http.StatusUnauthorized,
Expected: "401 Unauthorized\n",
User: "user1",
Pass: "pass2",
}, {
Name: "authOK",
URL: "rc/noopauth",
Method: "POST",
Body: `{}`,
ContentType: "application/javascript",
Status: http.StatusOK,
Expected: "{}\n",
User: "user",
Pass: "pass",
}}
opt := newTestOpt()
opt.Serve = false
opt.Files = ""
opt.NoAuth = false
opt.HTTPOptions.BasicUser = "user"
opt.HTTPOptions.BasicPass = "pass"
opt.Auth.BasicUser = "user"
opt.Auth.BasicPass = "pass"
testServer(t, tests, &opt)
}
@ -780,3 +805,26 @@ func TestRCAsync(t *testing.T) {
opt.Files = ""
testServer(t, tests, &opt)
}
// Check the debug handlers are attached
func TestRCDebug(t *testing.T) {
tests := []testRun{{
Name: "index",
URL: "debug/pprof/",
Method: "GET",
ContentType: "text/html",
Status: http.StatusOK,
Contains: regexp.MustCompile(`Types of profiles available`),
}, {
Name: "goroutines",
URL: "debug/pprof/goroutine?debug=1",
Method: "GET",
ContentType: "text/html",
Status: http.StatusOK,
Contains: regexp.MustCompile(`goroutine profile`),
}}
opt := newTestOpt()
opt.Serve = true
opt.Files = ""
testServer(t, tests, &opt)
}