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Diffstat (limited to 'server/auth/google/google.go')
-rw-r--r--server/auth/google/google.go135
1 files changed, 0 insertions, 135 deletions
diff --git a/server/auth/google/google.go b/server/auth/google/google.go
deleted file mode 100644
index b707310..0000000
--- a/server/auth/google/google.go
+++ /dev/null
@@ -1,135 +0,0 @@
-package google
-
-import (
- "errors"
- "fmt"
- "net/http"
- "strings"
-
- "github.com/nsheridan/cashier/server/auth"
- "github.com/nsheridan/cashier/server/config"
- "github.com/nsheridan/cashier/server/metrics"
-
- "golang.org/x/oauth2"
- "golang.org/x/oauth2/google"
- googleapi "google.golang.org/api/oauth2/v2"
-)
-
-const (
- revokeURL = "https://accounts.google.com/o/oauth2/revoke?token=%s"
- name = "google"
-)
-
-// Config is an implementation of `auth.Provider` for authenticating using a
-// Google account.
-type Config struct {
- config *oauth2.Config
- domain string
- whitelist map[string]bool
-}
-
-var _ auth.Provider = (*Config)(nil)
-
-// New creates a new Google provider from a configuration.
-func New(c *config.Auth) (*Config, error) {
- uw := make(map[string]bool)
- for _, u := range c.UsersWhitelist {
- uw[u] = true
- }
- if c.ProviderOpts["domain"] == "" && len(uw) == 0 {
- return nil, errors.New("either Google Apps domain or users whitelist must be specified")
- }
-
- return &Config{
- config: &oauth2.Config{
- ClientID: c.OauthClientID,
- ClientSecret: c.OauthClientSecret,
- RedirectURL: c.OauthCallbackURL,
- Endpoint: google.Endpoint,
- Scopes: []string{googleapi.UserinfoEmailScope, googleapi.UserinfoProfileScope},
- },
- domain: c.ProviderOpts["domain"],
- whitelist: uw,
- }, nil
-}
-
-// A new oauth2 http client.
-func (c *Config) newClient(token *oauth2.Token) *http.Client {
- return c.config.Client(oauth2.NoContext, token)
-}
-
-// Name returns the name of the provider.
-func (c *Config) Name() string {
- return name
-}
-
-// Valid validates the oauth token.
-func (c *Config) Valid(token *oauth2.Token) bool {
- if len(c.whitelist) > 0 && !c.whitelist[c.Email(token)] {
- return false
- }
- if !token.Valid() {
- return false
- }
- svc, err := googleapi.New(c.newClient(token))
- if err != nil {
- return false
- }
- t := svc.Tokeninfo()
- t.AccessToken(token.AccessToken)
- ti, err := t.Do()
- if err != nil {
- return false
- }
- if ti.Audience != c.config.ClientID {
- return false
- }
- ui, err := svc.Userinfo.Get().Do()
- if err != nil {
- return false
- }
- if c.domain != "" && ui.Hd != c.domain {
- return false
- }
- metrics.M.AuthValid.WithLabelValues("google").Inc()
- return true
-}
-
-// Revoke disables the access token.
-func (c *Config) Revoke(token *oauth2.Token) error {
- h := c.newClient(token)
- _, err := h.Get(fmt.Sprintf(revokeURL, token.AccessToken))
- return err
-}
-
-// StartSession retrieves an authentication endpoint from Google.
-func (c *Config) StartSession(state string) string {
- return c.config.AuthCodeURL(state, oauth2.SetAuthURLParam("hd", c.domain))
-}
-
-// Exchange authorizes the session and returns an access token.
-func (c *Config) Exchange(code string) (*oauth2.Token, error) {
- t, err := c.config.Exchange(oauth2.NoContext, code)
- if err == nil {
- metrics.M.AuthExchange.WithLabelValues("google").Inc()
- }
- return t, err
-}
-
-// Email retrieves the email address of the user.
-func (c *Config) Email(token *oauth2.Token) string {
- svc, err := googleapi.New(c.newClient(token))
- if err != nil {
- return ""
- }
- ui, err := svc.Userinfo.Get().Do()
- if err != nil {
- return ""
- }
- return ui.Email
-}
-
-// Username retrieves the username portion of the user's email address.
-func (c *Config) Username(token *oauth2.Token) string {
- return strings.Split(c.Email(token), "@")[0]
-}