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, _ := ioutil.ReadAll(res.Body)
174 log.Debugf(ctx, "GET %s -> %s", url, data)
176 var summary ActivitySummary
177 if err := json.Unmarshal(data, &summary); err != nil {
184 func (c *Client) subscriberID(collection string) string {
185 return fmt.Sprintf("%s:%s", c.appUser.ID, collection)
188 func UserFromSubscriberID(ctx context.Context, subscriberID string) (*app.User, error) {
189 uid := strings.Split(subscriberID, ":")[0]
190 return app.UserByID(ctx, uid)
193 func (c *Client) Subscribe(ctx context.Context, collection string) error {
194 url := fmt.Sprintf("https://api.fitbit.com/1/user/%s/%s/apiSubscriptions/%s.json",
195 c.fitbitUserID, collection, c.subscriberID(collection))
196 res, err := c.client.Post(url, "", nil)
200 defer res.Body.Close()
202 if res.StatusCode >= 400 && res.StatusCode != http.StatusConflict {
203 data, _ := ioutil.ReadAll(res.Body)
204 log.Errorf(ctx, "creating %q subscription failed: status %d %q", collection, res.StatusCode, data)
205 return fmt.Errorf("creating %q subscription failed", collection)
207 if res.StatusCode == http.StatusConflict {
208 log.Infof(ctx, "creating %q subscription: already exists", collection)
214 func (c *Client) unsubscribe(ctx context.Context, userID, collection, subscriptionID string) error {
216 userID = c.fitbitUserID
219 url := fmt.Sprintf("https://api.fitbit.com/1/user/%s/%s/apiSubscriptions/%s.json",
220 userID, collection, subscriptionID)
221 req, err := http.NewRequest(http.MethodDelete, url, nil)
226 res, err := c.client.Do(req.WithContext(ctx))
230 defer res.Body.Close()
232 if res.StatusCode >= 400 && res.StatusCode != http.StatusNotFound {
233 data, _ := ioutil.ReadAll(res.Body)
234 log.Errorf(ctx, "deleting %q subscription failed: status %d %q", collection, res.StatusCode, data)
235 return fmt.Errorf("deleting %q subscription failed", collection)
237 if res.StatusCode == http.StatusNotFound {
238 log.Infof(ctx, "deleting %q subscription: not found", collection)
244 func (c *Client) UnsubscribeAll(ctx context.Context) error {
245 var errs appengine.MultiError
247 for _, collection := range []string{"activities", "sleep"} {
248 subs, err := c.ListSubscriptions(ctx, collection)
250 errs = append(errs, err)
254 for _, sub := range subs {
255 if err := c.unsubscribe(ctx, sub.OwnerID, sub.CollectionType, sub.SubscriptionID); err != nil {
256 errs = append(errs, err)
267 func (c *Client) ListSubscriptions(ctx context.Context, collection string) ([]Subscription, error) {
268 url := fmt.Sprintf("https://api.fitbit.com/1/user/%s/%s/apiSubscriptions.json", c.fitbitUserID, collection)
269 res, err := c.client.Get(url)
271 return nil, fmt.Errorf("Get(%q) = %v", url, err)
273 defer res.Body.Close()
275 if res.StatusCode == http.StatusNotFound {
276 log.Infof(ctx, "get %q subscription: not found", collection)
280 data, err := ioutil.ReadAll(res.Body)
284 log.Debugf(ctx, "GET %s -> %s", url, data)
286 if res.StatusCode >= 400 {
287 return nil, fmt.Errorf("Get(%q) = %d", url, res.StatusCode)
291 Subscriptions []Subscription `json:"apiSubscriptions"`
293 if err := json.Unmarshal(data, &parsed); err != nil {
297 var errs appengine.MultiError
298 var ret []Subscription
299 for _, sub := range parsed.Subscriptions {
300 if sub.CollectionType != collection {
301 errs = append(errs, fmt.Errorf("unexpected collection type: got %q, want %q", sub.CollectionType, collection))
304 if sub.SubscriptionID == "" {
305 errs = append(errs, fmt.Errorf("missing subscription ID: %+v", sub))
308 if sub.OwnerID == "" {
309 sub.OwnerID = c.fitbitUserID
311 ret = append(ret, sub)
314 if len(ret) == 0 && len(errs) != 0 {
318 for _, err := range errs {
319 log.Warningf(ctx, err)
325 func (c *Client) DeleteToken(ctx context.Context) error {
326 return c.appUser.DeleteToken(ctx, "Fitbit")
329 type Profile struct {
331 Timezone *time.Location
334 func (c *Client) Profile(ctx context.Context) (*Profile, error) {
335 res, err := c.client.Get("https://api.fitbit.com/1/user/-/profile.json")
339 defer res.Body.Close()
341 if res.StatusCode >= 400 {
342 data, _ := ioutil.ReadAll(res.Body)
343 log.Errorf(ctx, "reading profile failed: %s", data)
344 return nil, fmt.Errorf("HTTP %d error", res.StatusCode)
350 OffsetFromUTCMillis int
354 if err := json.NewDecoder(res.Body).Decode(&data); err != nil {
358 loc, err := time.LoadLocation(data.User.Timezone)
360 loc = time.FixedZone("Fitbit preference", data.User.OffsetFromUTCMillis/1000)
364 Name: data.User.FullName,