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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,51 @@ | ||
| package auth | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "time" | ||
| "vibrain/internal/pkg/config" | ||
|
|
||
| "github.com/golang-jwt/jwt/v5" | ||
| ) | ||
|
|
||
| var signingMethod = jwt.SigningMethodHS256 | ||
|
|
||
| type JwtUser struct { | ||
| UserID string `json:"user_id"` | ||
| OAuthProvider string `json:"oauth_provider,omitempty"` | ||
| AccessToken string `json:"access_token"` | ||
| TokenType string `json:"token_type,omitempty"` | ||
| Expiry time.Time `json:"expiry,omitempty"` | ||
| } | ||
|
|
||
| func getJWTSecret() []byte { | ||
| return []byte(config.Settings.JWTSecret) | ||
| } | ||
|
|
||
| func GenerateJWT(user JwtUser) (string, error) { | ||
| token := jwt.NewWithClaims(signingMethod, jwt.MapClaims{ | ||
| "exp": time.Now().Add(time.Hour * 24).Unix(), | ||
| "user": user, | ||
| }) | ||
| return token.SignedString(getJWTSecret()) | ||
| } | ||
|
|
||
| func ValidateJWT(tokenString string) (*JwtUser, error) { | ||
| token, err := jwt.Parse(tokenString, func(token *jwt.Token) (interface{}, error) { | ||
| if _, ok := token.Method.(*jwt.SigningMethodHMAC); !ok { | ||
| return nil, fmt.Errorf("unexpected signing method: %v", token.Header["alg"]) | ||
| } | ||
| return getJWTSecret(), nil | ||
| }) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("invalid jwt token: %w", err) | ||
| } | ||
|
|
||
| claim := token.Claims.(jwt.MapClaims) | ||
| user, ok := claim["user"] | ||
| if !ok { | ||
| return nil, fmt.Errorf("user claim not found") | ||
| } | ||
|
|
||
| return user.(*JwtUser), nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| package auth | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "strings" | ||
| "vibrain/internal/pkg/config" | ||
|
|
||
| "golang.org/x/oauth2" | ||
| "golang.org/x/oauth2/github" | ||
| ) | ||
|
|
||
| func getOAuth2Config(provider string) (*oauth2.Config, error) { | ||
| if strings.ToLower(provider) == "github" { | ||
| return &oauth2.Config{ | ||
| ClientID: config.Settings.OAuthGithubKey, | ||
| ClientSecret: config.Settings.OAuthGithubSecret, | ||
| Endpoint: github.Endpoint, | ||
| RedirectURL: fmt.Sprintf("%s/oauth/github/callback", config.Settings.Fqdn), | ||
| Scopes: []string{"user:email"}, | ||
| }, nil | ||
| } | ||
|
|
||
| return nil, fmt.Errorf("oauth provider '%s' not found", provider) | ||
| } | ||
|
|
||
| func GetOAuth2RedirectURL(ctx context.Context, provider string) (string, error) { | ||
| cfg, err := getOAuth2Config(provider) | ||
| if err != nil { | ||
| return "", fmt.Errorf("failed to get oauth config: %w", err) | ||
| } | ||
| authCodeUrl := cfg.AuthCodeURL("state:"+provider, oauth2.AccessTypeOnline) | ||
| return authCodeUrl, nil | ||
| } | ||
|
|
||
| func GetOAuth2Token(ctx context.Context, provider, code string) (*oauth2.Token, error) { | ||
| cfg, err := getOAuth2Config(provider) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to get oauth config: %w", err) | ||
| } | ||
| token, err := cfg.Exchange(ctx, code) | ||
| if err != nil { | ||
| return nil, fmt.Errorf("failed to exchange oauth code: %w", err) | ||
| } | ||
| return token, nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,63 @@ | ||
| package handlers | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "net/http" | ||
| "vibrain/internal/pkg/auth" | ||
|
|
||
| "github.com/labstack/echo/v4" | ||
| ) | ||
|
|
||
| func LoginHandler(c echo.Context) error { | ||
| // return web/login.html page | ||
| return c.File("web/login.html") | ||
| } | ||
|
|
||
| func OAuthLoginHandler(c echo.Context) error { | ||
| provider := c.Param("provider") | ||
| ctx := c.Request().Context() | ||
| redirectUrl, err := auth.GetOAuth2RedirectURL(ctx, provider) | ||
| if err != nil { | ||
| return ErrorResponse(c, http.StatusInternalServerError, fmt.Errorf("failed to get oauth redirect url: %w", err)) | ||
| } | ||
|
|
||
| return c.Redirect(http.StatusTemporaryRedirect, redirectUrl) | ||
| } | ||
|
|
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| func OAuthCallbackHandler(c echo.Context) error { | ||
| provider := c.Param("provider") | ||
| code := c.QueryParam("code") | ||
| ctx := c.Request().Context() | ||
|
|
||
| token, err := auth.GetOAuth2Token(ctx, provider, code) | ||
| if err != nil { | ||
| return ErrorResponse(c, http.StatusInternalServerError, fmt.Errorf("failed to get oauth token: %w", err)) | ||
| } | ||
|
|
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| // TODO: get user info from database | ||
| userId := "userId" | ||
|
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| jwtUser := auth.JwtUser{ | ||
| UserID: userId, | ||
| OAuthProvider: provider, | ||
| AccessToken: token.AccessToken, | ||
| TokenType: token.TokenType, | ||
| Expiry: token.Expiry, | ||
| } | ||
|
|
||
| jwtToken, err := auth.GenerateJWT(jwtUser) | ||
| if err != nil { | ||
| return ErrorResponse(c, http.StatusInternalServerError, fmt.Errorf("failed to generate jwt token: %w", err)) | ||
| } | ||
|
|
||
| // write jwt token to cookie | ||
| cookie := new(http.Cookie) | ||
| cookie.Name = "token" | ||
| cookie.Value = jwtToken | ||
| cookie.Expires = token.Expiry | ||
| c.SetCookie(cookie) | ||
| return JsonResponse(c, http.StatusOK, map[string]interface{}{ | ||
| "jwt_token": jwtToken, | ||
| "jwt_user": jwtUser, | ||
| }) | ||
| } |
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