Dynamic providers list

bouquins/auth.go

@@ -25,10 +25,23 @@ var (
 	Providers []OAuth2Provider
 )
 
+// LoginModel is login page model
+type LoginModel struct {
+	Model
+	Providers []OAuth2Provider
+}
+
+// NewLoginModel constructor for LoginModel
+func (app *Bouquins) NewLoginModel(req *http.Request) *LoginModel {
+	return &LoginModel{*app.NewModel("Authentification", "provider", req), Providers}
+}
+
 // OAuth2Provider allows to get a user from an OAuth2 token
 type OAuth2Provider interface {
 	GetUser(token *oauth2.Token) (string, error)
 	Name() string
+	Label() string
+	Icon() string
 }
 
 // generates a 16 characters long random string
@@ -75,7 +88,7 @@ func (app *Bouquins) LoginPage(res http.ResponseWriter, req *http.Request) error
 		return nil
 	}
 	// choose provider
-	return app.render(res, tplProvider, app.NewModel("Authentification", "provider", req))
+	return app.render(res, tplProvider, app.NewLoginModel(req))
 }
 
 // LogoutPage logout connected user

bouquins/bouquins.go

@@ -157,7 +157,7 @@ type Model struct {
 	Username string
 }
 
-// NewModel constuctor for Model
+// NewModel constructor for Model
 func (app *Bouquins) NewModel(title, page string, req *http.Request) *Model {
 	return &Model{
 		Title:    title,

bouquins/github.go

@@ -12,7 +12,7 @@ import (
 // GithubProvider implements OAuth2 client with github.com
 type GithubProvider string
 
-type gitHubEmail struct {
+type githubEmail struct {
 	Email      string `json:"email"`
 	Primary    bool   `json:"primary"`
 	Verified   bool   `json:"verified"`
@@ -28,6 +28,16 @@ func (p GithubProvider) Name() string {
 	return string(p)
 }
 
+// Label returns label of provider
+func (p GithubProvider) Label() string {
+	return "Github"
+}
+
+// Icon returns icon path for provider
+func (p GithubProvider) Icon() string {
+	return "" // TODO
+}
+
 // GetUser returns github primary email
 func (p GithubProvider) GetUser(token *oauth2.Token) (string, error) {
 	apiReq, err := http.NewRequest("GET", "https://api.github.com/user/emails", nil)
@@ -42,7 +52,7 @@ func (p GithubProvider) GetUser(token *oauth2.Token) (string, error) {
 	}
 
 	dec := json.NewDecoder(response.Body)
-	var emails []gitHubEmail
+	var emails []githubEmail
 	err = dec.Decode(&emails)
 	if err != nil {
 		log.Println("Error reading github API response", err)

templates/provider.html

@@ -2,8 +2,10 @@
 <div class="container" id="provider">
   <p>Veuillez sélectionner un mode d'authentification:<p>
   <ul>
-    <!-- TODO list providers, icon -->
+{{ range .Providers }}
-    <li><a href="/login?provider=github">Github</a></li>
+    <!-- TODO icon -->
+    <li><a href="/login?provider={{ .Name }}">{{ .Label }}</a></li>
+{{ end }}
   </ul>
 </div>
 {{ template "footer.html" . }}