[websocket.js] Websockets to refresh page

Page will be refreshed after a validation
will be done

assets/websocket.js

@@ -0,0 +1,16 @@
+window.addEventListener("load", function(evt) {
+  var ws;
+  var loc = window.location, new_uri;
+  if (loc.protocol === "https:") {
+    new_uri = "wss:";
+  } else {
+    new_uri = "ws:";
+  }
+  new_uri += "//" + loc.host + "/ws";
+  ws = new WebSocket(new_uri);
+  ws.onmessage = function(evt) {
+    // there should be a check for the message
+    // content, but it is not needed for now
+    location.reload();
+  }
+});

cmd/ginvalid/main.go

@@ -46,6 +46,7 @@ func registerRoutes(r *mux.Router) {
 	r.HandleFunc("/results/{validator}/{user}/{repo}", web.Results).Methods("GET")
 	r.HandleFunc("/results/{validator}/{user}/{repo}/{id}", web.Results).Methods("GET")
 	r.HandleFunc("/login", web.LoginGet).Methods("GET")
+	r.HandleFunc("/ws", web.Socket).Methods("GET")
 	r.HandleFunc("/login", web.LoginPost).Methods("POST")
 	r.HandleFunc("/logout", web.Logout).Methods("GET")
 	r.HandleFunc("/repos", web.ListRepos).Methods("GET")

go.mod

@@ -10,6 +10,7 @@ require (
 	github.com/google/uuid v1.1.1
 	github.com/gorilla/handlers v1.4.2
 	github.com/gorilla/mux v1.7.3
+	github.com/gorilla/websocket v1.5.0 // indirect
 	github.com/magiconair/properties v1.8.1 // indirect
 	github.com/mattn/go-colorable v0.1.4 // indirect
 	github.com/mattn/go-isatty v0.0.10 // indirect

go.sum

@@ -60,6 +60,8 @@ github.com/gorilla/handlers v1.4.2/go.mod h1:Qkdc/uu4tH4g6mTK6auzZ766c4CA0Ng8+o/
 github.com/gorilla/mux v1.7.3 h1:gnP5JzjVOuiZD07fKKToCAOjS0yOpj/qPETTXCCS6hw=
 github.com/gorilla/mux v1.7.3/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
 github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
+github.com/gorilla/websocket v1.5.0 h1:PPwGk2jz7EePpoHN/+ClbZu8SPxiqlu12wZP/3sWmnc=
+github.com/gorilla/websocket v1.5.0/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
 github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
 github.com/grpc-ecosystem/grpc-gateway v1.9.0/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=

internal/resources/templates/generic_results.go

@@ -37,6 +37,11 @@ const GenericResults = `
 			{{ end }}
 		</div>
 		<div class="column" style="width:80%">
+			{{ if not (eq .LoadingSVG "") }}
+			<div class="center" style="width: 100px; height: 100px; margin: auto;">
+				{{ .LoadingSVG }}
+			</div>
+			{{ end }}
 			<hr>
 			<div>
 				<pre style="white-space: pre-wrap">{{.Content}}</pre>

internal/resources/templates/layout.go

@@ -15,6 +15,7 @@ var Layout = `
 		<link rel="stylesheet" href="/assets/semantic-2.3.1.min.css">
 		<link rel="stylesheet" href="/assets/gogs.css">
 		<link rel="stylesheet" href="/assets/custom.css">
+		<script src="/assets/websocket.js"></script>
 		<title>GIN Valid</title>
 		<meta name="twitter:card" content="summary" />
 		<meta name="twitter:site" content="@gnode" />

internal/web/pkg.go

@@ -7,6 +7,6 @@ package web
 
 const (
 	serveralias     = "gin"
-	progressmsg     = "A validation job for this repository is currently in progress, please do not leave this page and refresh the page after a while."
+	progressmsg     = "A validation job for this repository is currently in progress. Please do not leave this page. When it is done, it will refresh automatically. You can also refresh this page manually as many times as you wish"
 	notvalidatedyet = "This repository has not been validated yet. To see the results, update the repository."
 )

internal/web/results.go

@@ -241,6 +241,10 @@ func renderInProgress(w http.ResponseWriter, r *http.Request, badge []byte, vali
 	resHistory := resultsHistory(validator, user, repo)
 	loggedUsername := getLoggedUserName(r)
 	year, _, _ := time.Now().Date()
+	svgload, err := ioutil.ReadFile("/assets/svgload.svg")
+	if err != nil {
+		svgload = []byte("<svg></svg>")
+	}
 	info := struct {
 		Badge       template.HTML
 		Header      string
@@ -249,7 +253,8 @@ func renderInProgress(w http.ResponseWriter, r *http.Request, badge []byte, vali
 		CurrentYear int
 		UserName    string
 		*ResultsHistoryStruct
-	}{template.HTML(badge), head, string(progressmsg), srvcfg.GINAddresses.WebURL, year, loggedUsername, &resHistory}
+		LoadingSVG template.HTML
+	}{template.HTML(badge), head, string(progressmsg), srvcfg.GINAddresses.WebURL, year, loggedUsername, &resHistory, template.HTML(svgload)}
 
 	err = tmpl.ExecuteTemplate(w, "layout", info)
 	if err != nil {
@@ -373,6 +378,7 @@ func renderNIXResults(w http.ResponseWriter, r *http.Request, badge []byte, cont
 	head := fmt.Sprintf("NIX validation for %s/%s", user, repo)
 	resHistory := resultsHistory("nix", user, repo)
 	year, _, _ := time.Now().Date()
+	svgload := []byte("")
 	loggedUsername := getLoggedUserName(r)
 	srvcfg := config.Read()
 	info := struct {
@@ -383,7 +389,8 @@ func renderNIXResults(w http.ResponseWriter, r *http.Request, badge []byte, cont
 		CurrentYear int
 		UserName    string
 		*ResultsHistoryStruct
-	}{template.HTML(badge), head, string(content), srvcfg.GINAddresses.WebURL, year, loggedUsername, &resHistory}
+		LoadingSVG template.HTML
+	}{template.HTML(badge), head, string(content), srvcfg.GINAddresses.WebURL, year, loggedUsername, &resHistory, template.HTML(svgload)}
 
 	err = tmpl.ExecuteTemplate(w, "layout", info)
 	if err != nil {
@@ -414,6 +421,7 @@ func renderODMLResults(w http.ResponseWriter, r *http.Request, badge []byte, con
 	head := fmt.Sprintf("odML validation for %s/%s", user, repo)
 	resHistory := resultsHistory("odml", user, repo)
 	loggedUsername := getLoggedUserName(r)
+	svgload := []byte("")
 	srvcfg := config.Read()
 	year, _, _ := time.Now().Date()
 	info := struct {
@@ -424,7 +432,8 @@ func renderODMLResults(w http.ResponseWriter, r *http.Request, badge []byte, con
 		CurrentYear int
 		UserName    string
 		*ResultsHistoryStruct
-	}{template.HTML(badge), head, string(content), srvcfg.GINAddresses.WebURL, year, loggedUsername, &resHistory}
+		LoadingSVG template.HTML
+	}{template.HTML(badge), head, string(content), srvcfg.GINAddresses.WebURL, year, loggedUsername, &resHistory, template.HTML(svgload)}
 
 	err = tmpl.ExecuteTemplate(w, "layout", info)
 	if err != nil {

internal/web/user.go

@@ -228,6 +228,10 @@ func Logout(w http.ResponseWriter, r *http.Request) {
 		Expires: time.Time{},
 		Secure:  false, // TODO: Switch when we go live
 	}
+	if conn, ok := websockets[cookie.Value]; ok {
+		conn.Close()
+		delete(websockets, cookie.Value)
+	}
 	http.SetCookie(w, &cookie)
 	http.Redirect(w, r, "/login", http.StatusFound)
 }

internal/web/validate.go

@@ -27,6 +27,7 @@ import (
 
 	"github.com/google/uuid"
 	"github.com/gorilla/mux"
+	"github.com/gorilla/websocket"
 )
 
 // BidsMessages contains Errors, Warnings and Ignored messages.
@@ -56,6 +57,8 @@ type Validationcfg struct {
 	} `yaml:"bidsconfig"`
 }
 
+var websockets map[string]*websocket.Conn = make(map[string]*websocket.Conn)
+
 // handleValidationConfig unmarshalles a yaml config file
 // from file and returns the resulting Validationcfg struct.
 func handleValidationConfig(cfgpath string) (Validationcfg, error) {
@@ -341,7 +344,7 @@ func validateODML(valroot, resdir string) error {
 	return nil
 }
 
-func runValidatorBoth(validator, repopath, commit, commitname string, gcl *ginclient.Client, automatic bool) string {
+func runValidatorBoth(validator, repopath, commit, commitname string, gcl *ginclient.Client, automatic bool, r *http.Request) string {
 	respath := filepath.Join(validator, repopath, commit)
 	go func() {
 		log.ShowWrite("[Info] Running %s validation on repository %q (%s)", validator, repopath, commitname)
@@ -474,17 +477,19 @@ func runValidatorBoth(validator, repopath, commit, commitname string, gcl *gincl
 		if err != nil {
 			writeValFailure(resdir)
 		}
+		cookie, _ := r.Cookie(srvcfg.Settings.CookieName)
+		websockets[cookie.Value].WriteMessage(websocket.TextMessage, []byte("REFRESH"))
 	}()
 	return respath
 }
-func runValidator(validator, repopath, commit string, gcl *ginclient.Client) {
+func runValidator(validator, repopath, commit string, gcl *ginclient.Client, r *http.Request) {
 	automatic := true
-	runValidatorBoth(validator, repopath, commit, commit, gcl, automatic)
+	runValidatorBoth(validator, repopath, commit, commit, gcl, automatic, r)
 }
 
-func runValidatorPub(validator, repopath string, gcl *ginclient.Client) string {
+func runValidatorPub(validator, repopath string, gcl *ginclient.Client, r *http.Request) string {
 	automatic := false
-	return runValidatorBoth(validator, repopath, uuid.New().String(), "HEAD", gcl, automatic)
+	return runValidatorBoth(validator, repopath, uuid.New().String(), "HEAD", gcl, automatic, r)
 }
 
 // writeValFailure writes a badge and page content for when a hook payload is
@@ -555,6 +560,26 @@ func renderValidationForm(w http.ResponseWriter, r *http.Request, errMsg string)
 	tmpl.Execute(w, &data)
 }
 
+// Socket creates the websocket for async communication (refreshing the page)
+func Socket(w http.ResponseWriter, r *http.Request) {
+	srvcfg := config.Read()
+	cookie, err := r.Cookie(srvcfg.Settings.CookieName)
+	if err != nil {
+		fail(w, r, http.StatusUnauthorized, "You are not logged in")
+		return
+	}
+	var upgrader = websocket.Upgrader{}
+	conn, err := upgrader.Upgrade(w, r, nil)
+	if err != nil {
+		fail(w, r, http.StatusServiceUnavailable, "Cannot open websocket")
+		return
+	}
+	if conn, ok := websockets[cookie.Value]; ok {
+		conn.Close()
+	}
+	websockets[cookie.Value] = conn
+}
+
 // PubValidatePost parses the POST data from the root form and calls the
 // validator using the built-in ServiceWaiter.
 func PubValidatePost(w http.ResponseWriter, r *http.Request) {
@@ -597,7 +622,7 @@ func PubValidatePost(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
-	respath := runValidatorPub(validator, repopath, gcl)
+	respath := runValidatorPub(validator, repopath, gcl, r)
 	http.Redirect(w, r, filepath.Join("results", respath), http.StatusFound)
 }
 
@@ -679,7 +704,7 @@ func Validate(w http.ResponseWriter, r *http.Request) {
 
 	log.ShowWrite("[Info] Got user %s. Checking repo", gcl.Username)
 	// Payload is good. Run validator asynchronously and return OK header
-	runValidator(validator, repopath, commithash, gcl)
+	runValidator(validator, repopath, commithash, gcl, r)
 
 	w.WriteHeader(http.StatusOK)
 	w.Write([]byte("OK"))