44 lines
1007 B
Go
44 lines
1007 B
Go
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// routes/login/login.go
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package auth
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import (
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"crypto/rand"
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"encoding/base64"
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"net/http"
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)
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func NewLoginHandler(c Config) http.HandlerFunc {
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return func(w http.ResponseWriter, r *http.Request) {
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// Generate random state
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b := make([]byte, 32)
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_, err := rand.Read(b)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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state := base64.StdEncoding.EncodeToString(b)
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session, err := Store.Get(r, "auth-session")
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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session.Values["state"] = state
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err = session.Save(r, w)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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authenticator, err := NewAuthenticator(c.Domain, c.ClientID, c.ClientSecret, c.CallbackURL)
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if err != nil {
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http.Error(w, err.Error(), http.StatusInternalServerError)
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return
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}
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http.Redirect(w, r, authenticator.Config.AuthCodeURL(state), http.StatusTemporaryRedirect)
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}
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}
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