Add ability to configure the shared SSO while adding project (#745)

**What this PR does / why we need it**:

**Which issue(s) this PR fixes**:

Fixes #

**Does this PR introduce a user-facing change?**:
<!--
If no, just write "NONE" in the release-note block below.
-->
```release-note
NONE
```

This PR was merged by Kapetanios.

pkg/app/operator/cmd/server/server.go

@@ -90,7 +90,7 @@ func (s *server) run(ctx context.Context, t cli.Telemetry) error {
 
 	// Start running HTTP server.
 	{
-		handler := handler.NewHandler(s.httpPort, datastore.NewProjectStore(ds), s.gracePeriod, t.Logger)
+		handler := handler.NewHandler(s.httpPort, datastore.NewProjectStore(ds), cfg.SharedSSOConfigs, s.gracePeriod, t.Logger)
 		group.Go(func() error {
 			return handler.Run(ctx)
 		})

pkg/app/operator/handler/BUILD.bazel

@@ -9,6 +9,7 @@ go_library(
     importpath = "github.com/pipe-cd/pipe/pkg/app/operator/handler",
     visibility = ["//visibility:public"],
     deps = [
+        "//pkg/config:go_default_library",
         "//pkg/datastore:go_default_library",
         "//pkg/model:go_default_library",
         "@org_uber_go_zap//:go_default_library",

pkg/app/operator/handler/handler.go

@@ -24,6 +24,7 @@ import (
 
 	"go.uber.org/zap"
 
+	"github.com/pipe-cd/pipe/pkg/config"
 	"github.com/pipe-cd/pipe/pkg/datastore"
 	"github.com/pipe-cd/pipe/pkg/model"
 )
@@ -41,17 +42,19 @@ type projectStore interface {
 }
 
 type Handler struct {
-	port         int
-	projectStore projectStore
-	server       *http.Server
-	gracePeriod  time.Duration
-	logger       *zap.Logger
+	port             int
+	projectStore     projectStore
+	sharedSSOConfigs []config.SharedSSOConfig
+	server           *http.Server
+	gracePeriod      time.Duration
+	logger           *zap.Logger
 }
 
-func NewHandler(port int, ps projectStore, gracePeriod time.Duration, logger *zap.Logger) *Handler {
+func NewHandler(port int, ps projectStore, sharedSSOConfigs []config.SharedSSOConfig, gracePeriod time.Duration, logger *zap.Logger) *Handler {
 	mux := http.NewServeMux()
 	h := &Handler{
-		projectStore: ps,
+		projectStore:     ps,
+		sharedSSOConfigs: sharedSSOConfigs,
 		server: &http.Server{
 			Addr:    fmt.Sprintf(":%d", port),
 			Handler: mux,
@@ -134,6 +137,7 @@ func (h *Handler) handleListProjects(w http.ResponseWriter, r *http.Request) {
 			"ID":                  projects[i].Id,
 			"Description":         projects[i].Desc,
 			"StaticAdminDisabled": strconv.FormatBool(projects[i].StaticAdminDisabled),
+			"SharedSSOName":       projects[i].SharedSsoName,
 			"CreatedAt":           time.Unix(projects[i].CreatedAt, 0).String(),
 		})
 	}
@@ -155,18 +159,33 @@ func (h *Handler) handleAddProject(w http.ResponseWriter, r *http.Request) {
 	}
 
 	var (
-		id          = r.FormValue("ID")
-		description = r.FormValue("Description")
+		id            = r.FormValue("ID")
+		description   = r.FormValue("Description")
+		sharedSSOName = r.FormValue("SharedSSO")
 	)
 	if id == "" {
 		http.Error(w, "invalid id", http.StatusBadRequest)
 		return
 	}
+	if sharedSSOName != "" {
+		found := false
+		for i := range h.sharedSSOConfigs {
+			if h.sharedSSOConfigs[i].Name == sharedSSOName {
+				found = true
+				break
+			}
+		}
+		if !found {
+			http.Error(w, fmt.Sprintf("SharedSSOConfig %q was not found in Control Plane configuration", sharedSSOName), http.StatusBadRequest)
+			return
+		}
+	}
 
 	var (
 		project = &model.Project{
-			Id:   id,
-			Desc: description,
+			Id:            id,
+			Desc:          description,
+			SharedSsoName: sharedSSOName,
 		}
 		username = model.GenerateRandomString(10)
 		password = model.GenerateRandomString(30)
@@ -177,7 +196,7 @@ func (h *Handler) handleAddProject(w http.ResponseWriter, r *http.Request) {
 			zap.String("id", id),
 			zap.Error(err),
 		)
-		http.Error(w, "Unable to add the project", http.StatusInternalServerError)
+		http.Error(w, fmt.Sprintf("Unable to add the project (%v)", err), http.StatusInternalServerError)
 		return
 	}
 
@@ -189,14 +208,15 @@ func (h *Handler) handleAddProject(w http.ResponseWriter, r *http.Request) {
 			zap.String("id", id),
 			zap.Error(err),
 		)
-		http.Error(w, "Unable to add the project", http.StatusInternalServerError)
+		http.Error(w, fmt.Sprintf("Unable to add the project (%v)", err), http.StatusInternalServerError)
 		return
 	}
 	h.logger.Info("successfully added a new project", zap.String("id", id))
 
 	data := map[string]string{
 		"ID":                  id,
 		"Description":         description,
+		"SharedSSOName":       sharedSSOName,
 		"StaticAdminUsername": username,
 		"StaticAdminPassword": password,
 	}

pkg/app/operator/handler/templates/AddProject

@@ -1,15 +1,27 @@
 <!DOCTYPE html>
 <html>
+<head>
+<style>
+label {
+    display: block;
+    width: 6em;
+    float: left;
+}
+</style>
+</head>
 <body>
 
 <h2 style="text-align: center;"><a href="/">Welcome to PipeCD Owner Page!</a></h2>
 
 <h3>Add a new project</h3>
+
 <form method="POST">
-    <label>ID:</label><br>
+    <label>ID (Required)</label>
     <input type="text" name="ID"><br><br>
-    <label>Description:</label><br>
+    <label>Description</label>
     <input type="text" name="Description"><br><br>
+    <label>Shared SSO</label>
+    <input type="text" name="SharedSSO"><br><br>
     <input type="submit">
 </form>
 

pkg/app/operator/handler/templates/AddedProject

@@ -38,6 +38,10 @@ tr:nth-child(1) {
     <td>Description</td>
     <td>{{ .Description }}</td>
   </tr>
+  <tr>
+    <td>Shared SSO Name</td>
+    <td>{{ .SharedSSOName }}</td>
+  </tr>
   <tr>
     <td>Static Admin Username</td>
     <td>{{ .StaticAdminUsername }}</td>

pkg/app/operator/handler/templates/ListProjects

@@ -31,6 +31,7 @@ tr:nth-child(1) {
     <th>ID</th>
     <th>Description</th>
     <th>Static Admin Disabled</th>
+    <th>Shared SSO Name</th>
     <th>Created At</th>
   </tr>
 {{ range $index, $project := . }}
@@ -39,6 +40,7 @@ tr:nth-child(1) {
     <td>{{ $project.ID }}</td>
     <td>{{ $project.Description }}</td>
     <td>{{ $project.StaticAdminDisabled }}</td>
+    <td>{{ $project.SharedSSOName }}</td>
     <td>{{ $project.CreatedAt }}</td>
   </tr>
 {{ end }}