wip

internal/providers/github.go

@@ -0,0 +1,47 @@
+package providers
+
+import (
+	"encoding/json"
+	"errors"
+	"io"
+	"net/http"
+)
+
+type GithubEmailsResponse []struct {
+	Email string `json:"email"`
+	Primary bool `json:"primary"`
+}
+
+func GithubScopes() ([]string) {
+	return []string{"user:email"}
+}
+
+func GetGithubEmail(client *http.Client) (string, error) {
+	res, resErr := client.Get("https://api.github.com/user/emails")
+
+	if resErr != nil {
+		return "", resErr
+	}
+
+	body, bodyErr := io.ReadAll(res.Body)
+
+	if bodyErr != nil {
+		return "", bodyErr
+	}
+
+	var emails GithubEmailsResponse
+
+	jsonErr := json.Unmarshal(body, &emails)
+
+	if jsonErr != nil {
+		return "", jsonErr
+	}
+
+	for _, email := range emails {
+		if email.Primary {
+			return email.Email, nil
+		}
+	}
+
+	return "", errors.New("no primary email found")
+}

internal/providers/providers.go

@@ -0,0 +1,86 @@
+package providers
+
+import (
+	"tinyauth/internal/oauth"
+	"tinyauth/internal/types"
+
+	"github.com/rs/zerolog/log"
+	"golang.org/x/oauth2"
+	"golang.org/x/oauth2/endpoints"
+)
+
+func NewProviders(config types.OAuthConfig) *Providers {
+	return &Providers{
+		Config: config,
+	}
+}
+
+type Providers struct {
+	Config    types.OAuthConfig
+	Github    *oauth.OAuth
+	Google    *oauth.OAuth
+	Microsoft *oauth.OAuth
+}
+
+func (providers *Providers) Init() {
+	if providers.Config.GithubClientId != "" && providers.Config.GithubClientSecret != "" {
+		log.Info().Msg("Initializing Github OAuth")
+		providers.Github = oauth.NewOAuth(oauth2.Config{
+			ClientID:     providers.Config.GithubClientId,
+			ClientSecret: providers.Config.GithubClientSecret,
+			Scopes:       GithubScopes(),
+			Endpoint:     endpoints.GitHub,
+		})
+		providers.Github.Init()
+	}
+}
+
+func (providers *Providers) Login(code string, provider string) (string, error) {
+	switch provider {
+	case "github":
+		if providers.Github == nil {
+			return "", nil
+		}
+		exchangeErr := providers.Github.ExchangeToken(code)
+		if exchangeErr != nil {
+			return "", exchangeErr
+		}
+		client := providers.Github.GetClient()
+		email, emailErr := GetGithubEmail(client)
+		if emailErr != nil {
+			return "", emailErr
+		}
+		return email, nil
+	default:
+		return "", nil
+	}
+}
+
+func (providers *Providers) GetUser(provider string) (string, error) {
+	switch provider {
+	case "github":
+		if providers.Github == nil {
+			return "", nil
+		}
+		client := providers.Github.GetClient()
+		email, emailErr := GetGithubEmail(client)
+		if emailErr != nil {
+			return "", emailErr
+		}
+		return email, nil
+	default:
+		return "", nil
+	}
+}
+
+func (providers *Providers) GetAuthURL(provider string) string {
+	switch provider {
+	case "github":
+		if providers.Github == nil {
+			return ""
+		}
+		return providers.Github.GetAuthURL()
+	default:
+		return ""
+	}
+}