14 "github.com/octo/kraftakt/app"
16 oauth2fitbit "golang.org/x/oauth2/fitbit"
17 "google.golang.org/appengine/log"
20 func oauthConfig() *oauth2.Config {
21 return &oauth2.Config{
22 ClientID: app.Config.FitbitClientID,
23 ClientSecret: app.Config.FitbitClientSecret,
24 Endpoint: oauth2fitbit.Endpoint,
25 RedirectURL: "https://kraftakt.octo.it/fitbit/grant",
35 const csrfToken = "@CSRFTOKEN@"
37 func AuthURL() string {
38 return oauthConfig().AuthCodeURL(csrfToken, oauth2.AccessTypeOffline)
41 func ParseToken(ctx context.Context, r *http.Request, u *app.User) error {
42 if state := r.FormValue("state"); state != csrfToken {
43 return fmt.Errorf("invalid state parameter: %q", state)
46 tok, err := oauthConfig().Exchange(ctx, r.FormValue("code"))
51 return u.SetToken(ctx, "Fitbit", tok)
54 func CheckSignature(ctx context.Context, payload []byte, rawSig string) bool {
55 signatureGot, err := base64.StdEncoding.DecodeString(rawSig)
57 log.Errorf(ctx, "base64.StdEncoding.DecodeString(%q) = %v", rawSig, err)
61 mac := hmac.New(sha1.New, []byte(oauthConfig().ClientSecret+"&"))
63 signatureWant := mac.Sum(nil)
65 return hmac.Equal(signatureGot, signatureWant)
68 type Activity struct {
69 ActivityID int `json:"activityId"`
70 ActivityParentID int `json:"activityParentId"`
71 ActivityParentName string `json:"activityParentName"`
72 Calories int `json:"calories"`
73 Description string `json:"description"`
74 Distance float64 `json:"distance"`
75 Duration int `json:"duration"`
76 HasStartTime bool `json:"hasStartTime"`
77 IsFavorite bool `json:"isFavorite"`
78 LastModified time.Time `json:"lastModified"`
79 LogID int `json:"logId"`
80 Name string `json:"name"`
81 StartTime string `json:"startTime"`
82 StartDate string `json:"startDate"`
83 Steps int `json:"steps"`
86 type Distance struct {
87 Activity string `json:"activity"`
88 Distance float64 `json:"distance"`
91 type HeartRateZone struct {
92 Name string `json:"name"`
95 Minutes int `json:"minutes"`
96 CaloriesOut float64 `json:"caloriesOut"`
99 type ActivitySummary struct {
100 Activities []Activity `json:"activities"`
102 CaloriesOut int `json:"caloriesOut"`
103 Distance float64 `json:"distance"`
104 Floors int `json:"floors"`
105 Steps int `json:"steps"`
108 ActiveScore int `json:"activeScore"`
109 ActivityCalories int `json:"activityCalories"`
110 CaloriesBMR int `json:"caloriesBMR"`
111 CaloriesOut float64 `json:"caloriesOut"`
112 Distances []Distance `json:"distances"`
113 Elevation float64 `json:"elevation"`
114 Floors int `json:"floors"`
115 HeartRateZones []HeartRateZone `json:"heartRateZones"`
116 CustomHeartRateZones []HeartRateZone `json:"customHeartRateZones"`
117 MarginalCalories int `json:"marginalCalories"`
118 RestingHeartRate int `json:"restingHeartRate"`
119 Steps int `json:"steps"`
120 SedentaryMinutes int `json:"sedentaryMinutes"`
121 LightlyActiveMinutes int `json:"lightlyActiveMinutes"`
122 FairlyActiveMinutes int `json:"fairlyActiveMinutes"`
123 VeryActiveMinutes int `json:"veryActiveMinutes"`
127 type Subscription struct {
128 CollectionType string `json:"collectionType"`
129 Date string `json:"date"`
130 OwnerID string `json:"ownerId"`
131 OwnerType string `json:"ownerType"`
132 SubscriptionID string `json:"subscriptionId"`
141 func NewClient(ctx context.Context, fitbitUserID string, u *app.User) (*Client, error) {
142 if fitbitUserID == "" {
146 c, err := u.OAuthClient(ctx, "Fitbit", oauthConfig())
152 fitbitUserID: fitbitUserID,
158 func (c *Client) ActivitySummary(ctx context.Context, date string) (*ActivitySummary, error) {
159 url := fmt.Sprintf("https://api.fitbit.com/1/user/%s/activities/date/%s.json",
160 c.fitbitUserID, date)
162 res, err := c.client.Get(url)
166 defer res.Body.Close()
168 data, _ := ioutil.ReadAll(res.Body)
169 log.Debugf(ctx, "GET %s -> %s", url, data)
171 var summary ActivitySummary
172 if err := json.Unmarshal(data, &summary); err != nil {
179 func (c *Client) Subscribe(ctx context.Context, collection string) error {
180 subscriberID, err := c.appUser.ID(ctx)
185 url := fmt.Sprintf("https://api.fitbit.com/1/user/%s/%s/apiSubscriptions/%s.json",
186 c.fitbitUserID, collection, subscriberID)
187 res, err := c.client.Post(url, "", nil)
191 defer res.Body.Close()
193 if res.StatusCode >= 400 && res.StatusCode != http.StatusConflict {
194 data, _ := ioutil.ReadAll(res.Body)
195 log.Errorf(ctx, "creating %q subscription failed: status %d %q", collection, res.StatusCode, data)
196 return fmt.Errorf("creating %q subscription failed", collection)
202 func (c *Client) Unsubscribe(ctx context.Context, collection string) error {
203 subscriberID, err := c.appUser.ID(ctx)
208 url := fmt.Sprintf("https://api.fitbit.com/1/user/%s/%s/apiSubscriptions/%s.json",
209 c.fitbitUserID, collection, subscriberID)
210 req, err := http.NewRequest(http.MethodDelete, url, nil)
215 res, err := c.client.Do(req.WithContext(ctx))
219 defer res.Body.Close()
221 if res.StatusCode >= 400 && res.StatusCode != http.StatusConflict {
222 data, _ := ioutil.ReadAll(res.Body)
223 log.Errorf(ctx, "deleting %q subscription failed: status %d %q", collection, res.StatusCode, data)
224 return fmt.Errorf("deleting %q subscription failed", collection)
230 func (c *Client) DeleteToken(ctx context.Context) error {
231 return c.appUser.DeleteToken(ctx, "Fitbit")
234 type Profile struct {
236 Timezone *time.Location
239 func (c *Client) Profile(ctx context.Context) (*Profile, error) {
240 res, err := c.client.Get("https://api.fitbit.com/1/user/-/profile.json")
244 defer res.Body.Close()
246 if res.StatusCode >= 400 {
247 data, _ := ioutil.ReadAll(res.Body)
248 log.Errorf(ctx, "reading profile failed: %s", data)
249 return nil, fmt.Errorf("HTTP %d error", res.StatusCode)
255 OffsetFromUTCMillis int
259 if err := json.NewDecoder(res.Body).Decode(&data); err != nil {
263 loc, err := time.LoadLocation(data.User.Timezone)
265 loc = time.FixedZone("Fitbit preference", data.User.OffsetFromUTCMillis/1000)
269 Name: data.User.FullName,