func webSensorLocation(db data.DB, u *models.User, eventData map[string]interface{}) {
log.Printf("%++v", eventData)
webTag, err := tag.ForName(db, u, "WEB")
if err != nil {
log.Fatal(err)
}
lat, ok := eventData["latitude"].(float64)
if !ok {
return // bail
}
lon, ok := eventData["longitude"].(float64)
if !ok {
return // bail
}
_, _, err = event.LocationUpdate(
db,
u,
0,
lat,
lon,
webTag,
)
if err != nil {
log.Fatal(err)
}
}
func taskDropGoal(db data.DB, u *models.User, eventData map[string]interface{}) {
g, err := tag.ForName(db, u, tag.Goal)
if err != nil {
log.Printf("agents.taskDropGoal Error: %s", err)
return
}
id, err := db.ParseID(eventData["task_id"].(string))
if err != nil {
log.Printf("agents.taskDropGoal Error: %s", err)
return
}
t, err := models.FindTask(db, id)
if err != nil {
log.Printf("agents.taskMakeGoal Error: %s", err)
return
}
t.ExcludeTag(g)
if err := db.Save(t); err != nil {
log.Printf("agents.taskMakeGoal Error: %s", err)
return
}
}
func LocationAgent(ctx context.Context, db data.DB, u *models.User) {
locTag, err := tag.ForName(db, u, tag.Location)
if err != nil {
log.Fatal(err)
}
updTag, err := tag.ForName(db, u, tag.Update)
if err != nil {
log.Fatal(err)
}
// Get the db's changes, then filter by updates, then
// filter by whether this user can read the record
changes := data.Filter(data.FilterKind(db.Changes(), models.EventKind), func(c *data.Change) bool {
ok, _ := access.CanRead(db, u, c.Record)
if !ok {
return false
}
return event.ContainsTags(c.Record.(*models.Event), locTag, updTag)
})
Run:
for {
select {
case c, ok := <-*changes:
if !ok {
break Run
}
locationUpdate(db, u, c.Record.(*models.Event))
case <-ctx.Done():
break Run
}
}
}
// EventPOST implements gaia's response to a POST request to the '/event/' endpoint.
//
// Assumptions: The user has been authenticated.
//
// Proceedings: Parses the url parameters.
func EventPOST(ctx context.Context, w http.ResponseWriter, r *http.Request, db data.DB, logger services.Logger) {
l := logger.WithPrefix("EventPOST: ")
// Parse the form
if err := r.ParseForm(); err != nil {
l.Printf("error parsing form: %s", err)
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
// Retrieve the tags parameter
tagNames, ok := r.Form[tagsParam]
if !ok {
l.Print("no tags param")
tagNames = []string{}
}
// if any tag names have commas, split those
tagNames = flatten(mapSplit(tagNames, ","))
// Retrieve our user
u, ok := user.FromContext(ctx)
if !ok {
l.Print("failed to retrieve user from context")
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
e := new(models.Event)
tags := make([]*models.Tag, len(tagNames))
for i, n := range tagNames {
t, err := tag.ForName(db, u, tag.Name(n))
if err != nil {
l.Printf("tag.ForName(%q) error: %s", n, err)
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
tags[i] = t
}
defer r.Body.Close()
if requestBody, err := ioutil.ReadAll(r.Body); err != nil {
l.Printf("ioutil.ReadAll(r.Body) error: %s", err)
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
} else if err := json.Unmarshal(requestBody, e); err != nil {
l.Printf("info: request body:\n%s", string(requestBody))
l.Printf("error: while unmarshalling request body, %s", err)
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
if e.CreatedAt.IsZero() {
e.CreatedAt = time.Now()
}
e.UpdatedAt = time.Now()
e.SetOwner(u)
for _, t := range tags {
e.IncludeTag(t)
}
if allowed, err := access.CanCreate(db, u, e); err != nil {
l.Printf("access.CanCreate(db, u, e) error: %s", err)
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
} else if !allowed {
l.Print("access.CanCreate(db, u, e) rejected authorization")
http.Error(w, http.StatusText(http.StatusUnauthorized), http.StatusUnauthorized)
return
}
if err := db.Save(u); err != nil {
l.Printf("error saving record: %s", err)
switch err {
case data.ErrAccessDenial:
http.Error(w, http.StatusText(http.StatusUnauthorized), http.StatusUnauthorized)
// These are all equally distressing
case data.ErrNotFound: // TODO shouldn't a not found not be fing impossible for a Save?
fallthrough
case data.ErrNoConnection:
fallthrough
case data.ErrInvalidID:
default:
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
}
return
}
// Now we shall write our response
b, err := json.MarshalIndent(e, "", " ")
if err != nil {
l.Printf("json.MarshalIndent(m, \"\", \" \") error: %s", err)
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusCreated)
w.Header().Set("Content-Type", "application/json")
w.Write(b)
}
func MobileLocationPOST(ctx context.Context, w http.ResponseWriter, r *http.Request, l services.Logger, db data.DB) {
// Parse the form value
if err := r.ParseForm(); err != nil {
l.Printf("MobileLocationPOST Error: %s", err)
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
// Altitude
alt := r.FormValue(altitudeParam)
if alt == "" {
http.Error(w, "You must specify an altitude", http.StatusBadRequest)
return
}
altitude, err := strconv.ParseFloat(alt, 64)
if err != nil {
http.Error(w, "Parsing altitude", http.StatusBadRequest)
return
}
// Latitude
lat := r.FormValue(latitudeParam)
if lat == "" {
http.Error(w, "You must specify a latitude", http.StatusBadRequest)
return
}
latitude, err := strconv.ParseFloat(lat, 64)
if err != nil {
http.Error(w, "Parsing latitude", http.StatusBadRequest)
return
}
// Longitude
lon := r.FormValue(longitudeParam)
if lon == "" {
http.Error(w, "You must specify an longitude", http.StatusBadRequest)
return
}
longitude, err := strconv.ParseFloat(lon, 64)
if err != nil {
http.Error(w, "Parsing longitude", http.StatusBadRequest)
return
}
// Retrieve the user this request was authenticated as
u, ok := user.FromContext(ctx)
if !ok { // This is certainly an issue, and should _never_ happen
l.Print("MobileLocationPOST Error: failed to retrieve user from context")
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
// Create location
loc := location.NewCoords(altitude, latitude, longitude)
loc.SetID(db.NewID())
loc.SetOwner(u)
now := loc.CreatedAt
e := models.NewEvent()
e.CreatedAt = now
e.SetID(db.NewID())
e.SetOwner(u)
e.Name = "Location Update"
e.SetLocation(loc)
e.Time = now
e.UpdatedAt = now
locationTag, err1 := tag.ForName(db, u, tag.Location)
updateTag, err2 := tag.ForName(db, u, tag.Update)
mobileTag, err3 := tag.ForName(db, u, tag.Mobile)
if err1 != nil || err2 != nil || err3 != nil {
l.Printf("MobileLocationPOST Error: %s", err)
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
e.IncludeTag(locationTag)
e.IncludeTag(updateTag)
e.IncludeTag(mobileTag)
if err = db.Save(loc); err != nil {
l.Printf("MobileLocationPOST Error: %s", err)
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
if err = db.Save(e); err != nil {
l.Printf("MobileLocationPOST Error: %s", err)
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
bytes, err := json.MarshalIndent(e, "", " ")
if err != nil {
l.Printf("MobileLocationPOST Error: while marshalling json %s", err)
http.Error(w, http.StatusText(http.StatusInternalServerError), http.StatusInternalServerError)
return
}
w.WriteHeader(http.StatusCreated)
w.Header().Set("Content-Type", "application/json")
w.Write(bytes)
}