Unsubscribe from Fitbit subscriptions individually.

[kraftakt.git] / fitbit / fitbit.go

diff --git a/fitbit/fitbit.go b/fitbit/fitbit.go
index 4555e22..775ab78 100644 (file)
--- a/fitbit/fitbit.go
+++ b/fitbit/fitbit.go
@@ -11,29 +11,31 @@ import (
        "net/http"
        "time"
 
-       "github.com/octo/gfitsync/app"
+       "github.com/octo/kraftakt/app"
        "golang.org/x/oauth2"
        oauth2fitbit "golang.org/x/oauth2/fitbit"
        "google.golang.org/appengine/log"
 )
 
-var oauth2Config = &oauth2.Config{
-       ClientID:     "@FITBIT_CLIENT_ID@",
-       ClientSecret: "@FITBIT_CLIENT_SECRET@",
-       Endpoint:     oauth2fitbit.Endpoint,
-       RedirectURL:  "https://kraftakt.octo.it/fitbit/grant",
-       Scopes: []string{
-               "activity",
-               "heartrate",
-               "profile",
-               "sleep",
-       },
+func oauthConfig() *oauth2.Config {
+       return &oauth2.Config{
+               ClientID:     app.Config.FitbitClientID,
+               ClientSecret: app.Config.FitbitClientSecret,
+               Endpoint:     oauth2fitbit.Endpoint,
+               RedirectURL:  "https://kraftakt.octo.it/fitbit/grant",
+               Scopes: []string{
+                       "activity",
+                       "heartrate",
+                       "profile",
+                       "sleep",
+               },
+       }
 }
 
 const csrfToken = "@CSRFTOKEN@"
 
 func AuthURL() string {
-       return oauth2Config.AuthCodeURL(csrfToken, oauth2.AccessTypeOffline)
+       return oauthConfig().AuthCodeURL(csrfToken, oauth2.AccessTypeOffline)
 }
 
 func ParseToken(ctx context.Context, r *http.Request, u *app.User) error {
@@ -41,7 +43,7 @@ func ParseToken(ctx context.Context, r *http.Request, u *app.User) error {
                return fmt.Errorf("invalid state parameter: %q", state)
        }
 
-       tok, err := oauth2Config.Exchange(ctx, r.FormValue("code"))
+       tok, err := oauthConfig().Exchange(ctx, r.FormValue("code"))
        if err != nil {
                return err
        }
@@ -56,7 +58,7 @@ func CheckSignature(ctx context.Context, payload []byte, rawSig string) bool {
                return false
        }
 
-       mac := hmac.New(sha1.New, []byte(oauth2Config.ClientSecret+"&"))
+       mac := hmac.New(sha1.New, []byte(oauthConfig().ClientSecret+"&"))
        mac.Write(payload)
        signatureWant := mac.Sum(nil)
 
@@ -141,7 +143,7 @@ func NewClient(ctx context.Context, fitbitUserID string, u *app.User) (*Client,
                fitbitUserID = "-"
        }
 
-       c, err := u.OAuthClient(ctx, "Fitbit", oauth2Config)
+       c, err := u.OAuthClient(ctx, "Fitbit", oauthConfig())
        if err != nil {
                return nil, err
        }
@@ -188,15 +190,47 @@ func (c *Client) Subscribe(ctx context.Context, collection string) error {
        }
        defer res.Body.Close()
 
-       if res.StatusCode >= 400 {
+       if res.StatusCode >= 400 && res.StatusCode != http.StatusConflict {
+               data, _ := ioutil.ReadAll(res.Body)
+               log.Errorf(ctx, "creating %q subscription failed: status %d %q", collection, res.StatusCode, data)
+               return fmt.Errorf("creating %q subscription failed", collection)
+       }
+
+       return nil
+}
+
+func (c *Client) Unsubscribe(ctx context.Context, collection string) error {
+       subscriberID, err := c.appUser.ID(ctx)
+       if err != nil {
+               return err
+       }
+
+       url := fmt.Sprintf("https://api.fitbit.com/1/user/%s/%s/apiSubscriptions/%s.json",
+               c.fitbitUserID, collection, subscriberID)
+       req, err := http.NewRequest(http.MethodDelete, url, nil)
+       if err != nil {
+               return err
+       }
+
+       res, err := c.client.Do(req.WithContext(ctx))
+       if err != nil {
+               return err
+       }
+       defer res.Body.Close()
+
+       if res.StatusCode >= 400 && res.StatusCode != http.StatusConflict {
                data, _ := ioutil.ReadAll(res.Body)
-               log.Errorf(ctx, "creating subscription failed: status %d %q", res.StatusCode, data)
-               return fmt.Errorf("creating subscription failed")
+               log.Errorf(ctx, "deleting %q subscription failed: status %d %q", collection, res.StatusCode, data)
+               return fmt.Errorf("deleting %q subscription failed", collection)
        }
 
        return nil
 }
 
+func (c *Client) DeleteToken(ctx context.Context) error {
+       return c.appUser.DeleteToken(ctx, "Fitbit")
+}
+
 type Profile struct {
        Name     string
        Timezone *time.Location