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package api0
import (
"crypto/sha256"
"encoding/hex"
"net/http"
"strconv"
"strings"
"time"
"github.com/r2northstar/atlas/pkg/pdata"
"github.com/rs/zerolog/hlog"
)
func pdataFilterInfo(path ...string) bool {
switch path[0] {
case "gen", "xp", "activeCallingCardIndex", "activeCallsignIconIndex", "activeCallsignIconStyleIndex", "netWorth":
return true
default:
return false
}
}
func pdataFilterStats(path ...string) bool {
switch path[0] {
case "gen", "xp", "credits", "netWorth", "factionXP", "titanXP", "fdTitanXP", "gameStats", "mapStats", "timeStats",
"distanceStats", "weaponStats", "weaponKillStats", "killStats", "deathStats", "miscStats", "fdStats", "titanStats",
"kdratio_lifetime", "kdratio_lifetime_pvp", "winStreak", "highestWinStreakEver":
return true
default:
return false
}
}
func pdataFilterLoadout(path ...string) bool {
switch path[0] {
case "factionChoice", "activePilotLoadout", "activeTitanLoadout", "pilotLoadouts", "titanLoadouts":
return true
default:
return false
}
}
func (h *Handler) handlePlayer(w http.ResponseWriter, r *http.Request) {
var pdataFilter func(...string) bool
var pdataFilterName string
switch pdataFilterName = strings.TrimPrefix(r.URL.Path, "/player/"); pdataFilterName {
case "pdata":
pdataFilter = nil
case "info":
pdataFilter = pdataFilterInfo
case "stats":
pdataFilter = pdataFilterStats
case "loadout":
pdataFilter = pdataFilterLoadout
default:
http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
return
}
if r.Method != http.MethodOptions && r.Method != http.MethodGet && r.Method != http.MethodHead {
h.m().player_pdata_requests_total.http_method_not_allowed.Inc()
http.Error(w, http.StatusText(http.StatusMethodNotAllowed), http.StatusMethodNotAllowed)
return
}
// - cache publicly, allow reusing responses for multiple users
// - allow reusing responses if server is down
// - cache for up to 30s
// - check for updates after 15s
w.Header().Set("Cache-Control", "public, max-age=15, stale-while-revalidate=15")
w.Header().Set("Expires", time.Now().UTC().Add(time.Second*30).Format(http.TimeFormat))
// - allow CORS requests from all origins
w.Header().Set("Access-Control-Allow-Origin", "*")
w.Header().Set("Access-Control-Allow-Methods", "OPTIONS, GET, HEAD")
w.Header().Set("Access-Control-Max-Age", "86400")
if r.Method == http.MethodOptions {
w.Header().Set("Allow", "OPTIONS, GET, HEAD")
w.WriteHeader(http.StatusNoContent)
return
}
uidQ := r.URL.Query().Get("id")
if uidQ == "" {
h.m().player_pdata_requests_total.reject_bad_request.Inc()
respFail(w, r, http.StatusBadRequest, ErrorCode_BAD_REQUEST.MessageObjf("id param is required"))
return
}
uid, err := strconv.ParseUint(uidQ, 10, 64)
if err != nil {
h.m().player_pdata_requests_total.reject_bad_request.Inc()
respFail(w, r, http.StatusNotFound, ErrorCode_PLAYER_NOT_FOUND.MessageObj())
return
}
// if it's a HEAD request, we just need the hash to set the etag
if r.Method == http.MethodHead {
hash, exists, err := h.PdataStorage.GetPdataHash(uid)
if err != nil {
hlog.FromRequest(r).Error().
Err(err).
Uint64("uid", uid).
Msgf("failed to read pdata hash from storage")
h.m().player_pdata_requests_total.fail_storage_error_pdata.Inc()
w.WriteHeader(http.StatusInternalServerError)
return
}
if !exists {
h.m().player_pdata_requests_total.reject_player_not_found.Inc()
w.WriteHeader(http.StatusNotFound)
return
}
h.m().player_pdata_requests_total.success(pdataFilterName).Inc()
w.Header().Set("ETag", `W/"`+hex.EncodeToString(hash[:])+`"`)
w.WriteHeader(http.StatusOK)
return
}
buf, exists, err := h.PdataStorage.GetPdataCached(uid, [sha256.Size]byte{})
if err != nil {
hlog.FromRequest(r).Error().
Err(err).
Uint64("uid", uid).
Msgf("failed to read pdata from storage")
h.m().player_pdata_requests_total.fail_storage_error_pdata.Inc()
respFail(w, r, http.StatusInternalServerError, ErrorCode_INTERNAL_SERVER_ERROR.MessageObj())
return
}
if !exists {
h.m().player_pdata_requests_total.reject_player_not_found.Inc()
respFail(w, r, http.StatusNotFound, ErrorCode_PLAYER_NOT_FOUND.MessageObj())
return
}
hash := sha256.Sum256(buf)
w.Header().Set("ETag", `W/"`+hex.EncodeToString(hash[:])+`"`)
var pd pdata.Pdata
if err := pd.UnmarshalBinary(buf); err != nil {
hlog.FromRequest(r).Warn().
Err(err).
Uint64("uid", uid).
Str("pdata_sha256", hex.EncodeToString(hash[:])).
Msgf("failed to parse pdata from storage")
h.m().player_pdata_requests_total.fail_pdata_invalid.Inc()
respFail(w, r, http.StatusInternalServerError, ErrorCode_INTERNAL_SERVER_ERROR.MessageObjf("failed to parse stored pdata"))
return
}
jbuf, err := pd.MarshalJSONFilter(pdataFilter)
if err != nil {
hlog.FromRequest(r).Error().
Err(err).
Uint64("uid", uid).
Str("pdata_sha256", hex.EncodeToString(hash[:])).
Msgf("failed to encode pdata as json")
h.m().player_pdata_requests_total.fail_other_error.Inc()
respFail(w, r, http.StatusInternalServerError, ErrorCode_INTERNAL_SERVER_ERROR.MessageObjf("failed to encode pdata as json"))
return
}
jbuf = append(jbuf, '\n')
h.m().player_pdata_requests_total.success(pdataFilterName).Inc()
w.Header().Set("Content-Type", "application/json; charset=utf-8")
respMaybeCompress(w, r, http.StatusOK, jbuf)
}
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