15 "github.com/octo/kraftakt/app"
17 oauth2fitbit "golang.org/x/oauth2/fitbit"
18 "google.golang.org/appengine"
19 "google.golang.org/appengine/log"
22 func oauthConfig() *oauth2.Config {
23 return &oauth2.Config{
24 ClientID: app.Config.FitbitClientID,
25 ClientSecret: app.Config.FitbitClientSecret,
26 Endpoint: oauth2fitbit.Endpoint,
27 RedirectURL: "https://kraftakt.octo.it/fitbit/grant",
37 func AuthURL(ctx context.Context, u *app.User) string {
38 return oauthConfig().AuthCodeURL(u.Sign("Fitbit"), oauth2.AccessTypeOffline)
41 func ParseToken(ctx context.Context, r *http.Request, u *app.User) error {
42 if state := r.FormValue("state"); state != u.Sign("Fitbit") {
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"`
135 func (s Subscription) String() string {
136 return fmt.Sprintf("https://api.fitbit.com/1/%s/%s/%s/apiSubscriptions/%s.json",
137 s.OwnerType, s.OwnerID, s.CollectionType, s.SubscriptionID)
146 func NewClient(ctx context.Context, fitbitUserID string, u *app.User) (*Client, error) {
147 if fitbitUserID == "" {
151 c, err := u.OAuthClient(ctx, "Fitbit", oauthConfig())
153 return nil, fmt.Errorf("OAuthClient(%q) = %v", "Fitbit", err)
157 fitbitUserID: fitbitUserID,
163 func (c *Client) ActivitySummary(ctx context.Context, date string) (*ActivitySummary, error) {
164 url := fmt.Sprintf("https://api.fitbit.com/1/user/%s/activities/date/%s.json",
165 c.fitbitUserID, date)
167 res, err := c.client.Get(url)
171 defer res.Body.Close()
173 data, err := ioutil.ReadAll(res.Body)
177 log.Debugf(ctx, "GET %s -> %s", url, data)
179 var summary ActivitySummary
180 if err := json.Unmarshal(data, &summary); err != nil {
187 func (c *Client) subscriberID(collection string) string {
188 return fmt.Sprintf("%s:%s", c.appUser.ID, collection)
191 func UserFromSubscriberID(ctx context.Context, subscriberID string) (*app.User, error) {
192 uid := strings.Split(subscriberID, ":")[0]
193 return app.UserByID(ctx, uid)
196 func (c *Client) Subscribe(ctx context.Context, collection string) error {
197 url := fmt.Sprintf("https://api.fitbit.com/1/user/%s/%s/apiSubscriptions/%s.json",
198 c.fitbitUserID, collection, c.subscriberID(collection))
199 res, err := c.client.Post(url, "", nil)
203 defer res.Body.Close()
205 if res.StatusCode >= 400 && res.StatusCode != http.StatusConflict {
206 data, _ := ioutil.ReadAll(res.Body)
207 log.Errorf(ctx, "creating %q subscription failed: status %d %q", collection, res.StatusCode, data)
208 return fmt.Errorf("creating %q subscription failed", collection)
210 if res.StatusCode == http.StatusConflict {
211 log.Infof(ctx, "creating %q subscription: already exists", collection)
217 func (c *Client) unsubscribe(ctx context.Context, userID, collection, subscriptionID string) error {
219 userID = c.fitbitUserID
222 url := fmt.Sprintf("https://api.fitbit.com/1/user/%s/%s/apiSubscriptions/%s.json",
223 userID, collection, subscriptionID)
224 req, err := http.NewRequest(http.MethodDelete, url, nil)
229 res, err := c.client.Do(req.WithContext(ctx))
233 defer res.Body.Close()
235 if res.StatusCode >= 400 && res.StatusCode != http.StatusNotFound {
236 data, _ := ioutil.ReadAll(res.Body)
237 log.Errorf(ctx, "deleting %q subscription failed: status %d %q", collection, res.StatusCode, data)
238 return fmt.Errorf("deleting %q subscription failed", collection)
240 if res.StatusCode == http.StatusNotFound {
241 log.Infof(ctx, "deleting %q subscription: not found", collection)
247 func (c *Client) UnsubscribeAll(ctx context.Context) error {
248 var errs appengine.MultiError
250 for _, collection := range []string{"activities", "sleep"} {
251 subs, err := c.ListSubscriptions(ctx, collection)
253 errs = append(errs, err)
257 for _, sub := range subs {
258 if err := c.unsubscribe(ctx, sub.OwnerID, sub.CollectionType, sub.SubscriptionID); err != nil {
259 errs = append(errs, err)
270 func (c *Client) ListSubscriptions(ctx context.Context, collection string) ([]Subscription, error) {
271 url := fmt.Sprintf("https://api.fitbit.com/1/user/%s/%s/apiSubscriptions.json", c.fitbitUserID, collection)
272 res, err := c.client.Get(url)
274 return nil, fmt.Errorf("Get(%q) = %v", url, err)
276 defer res.Body.Close()
278 if res.StatusCode == http.StatusNotFound {
279 log.Infof(ctx, "get %q subscription: not found", collection)
283 data, err := ioutil.ReadAll(res.Body)
287 log.Debugf(ctx, "GET %s -> %s", url, data)
289 if res.StatusCode >= 400 {
290 return nil, fmt.Errorf("Get(%q) = %d", url, res.StatusCode)
294 Subscriptions []Subscription `json:"apiSubscriptions"`
296 if err := json.Unmarshal(data, &parsed); err != nil {
300 var errs appengine.MultiError
301 var ret []Subscription
302 for _, sub := range parsed.Subscriptions {
303 if sub.CollectionType != collection {
304 errs = append(errs, fmt.Errorf("unexpected collection type: got %q, want %q", sub.CollectionType, collection))
307 if sub.SubscriptionID == "" {
308 errs = append(errs, fmt.Errorf("missing subscription ID: %+v", sub))
311 if sub.OwnerID == "" {
312 sub.OwnerID = c.fitbitUserID
314 ret = append(ret, sub)
317 if len(ret) == 0 && len(errs) != 0 {
321 for _, err := range errs {
322 log.Warningf(ctx, "%v", err)
328 func (c *Client) DeleteToken(ctx context.Context) error {
329 return c.appUser.DeleteToken(ctx, "Fitbit")
332 type Profile struct {
334 Timezone *time.Location
337 func (c *Client) Profile(ctx context.Context) (*Profile, error) {
338 res, err := c.client.Get("https://api.fitbit.com/1/user/-/profile.json")
342 defer res.Body.Close()
344 if res.StatusCode >= 400 {
345 data, _ := ioutil.ReadAll(res.Body)
346 log.Errorf(ctx, "reading profile failed: %s", data)
347 return nil, fmt.Errorf("HTTP %d error", res.StatusCode)
353 OffsetFromUTCMillis int
357 if err := json.NewDecoder(res.Body).Decode(&data); err != nil {
361 loc, err := time.LoadLocation(data.User.Timezone)
363 loc = time.FixedZone("Fitbit preference", data.User.OffsetFromUTCMillis/1000)
367 Name: data.User.FullName,