func setupAPIConfigs(app *server.App) {
var API = app.API()
// --------------------------------------------------------------------------
// Sever Config
API.GET("/configs/",
server.Handler(func(req *wcg.Request) response.Response {
return response.NewJSONResponse(configs.GetAll(req))
}))
API.GET("/configs/:key.json",
server.Handler(func(req *wcg.Request) response.Response {
val := configs.Get(req, req.Param("key"))
if val == nil {
return response.NotFound(req)
} else {
return response.NewJSONResponse(val)
}
}),
)
API.PUT("/configs/:key.json",
middleware.ParseForm(func(v *validators.FormValidator) {
v.Field("value").Required()
}),
server.Handler(func(req *wcg.Request) response.Response {
val := configs.Get(req, req.Param("key"))
if val == nil {
return response.NotFound(req)
} else {
val.Value = req.Form("value")
configs.PutMulti(req, val)
return response.NewJSONResponse(val)
}
}))
}
func setupAPIGates(app *server.App) {
var API = app.API()
// --------------------------------------------------------------------------
// Gate
API.GET("/gates/",
server.Handler(func(req *wcg.Request) response.Response {
return response.NewJSONResponse(gates.GetAll(req))
}))
API.GET("/gates/:key.json",
server.Handler(func(req *wcg.Request) response.Response {
val := gates.Get(req, req.Param("key"))
if val == nil {
return response.NotFound(req)
} else {
return response.NewJSONResponse(val)
}
}))
API.PUT("/gates/:key.json",
middleware.ParseForm(nil),
server.Handler(func(req *wcg.Request) response.Response {
val := gates.Get(req, req.Param("key"))
if val == nil {
return response.NotFound(req)
} else {
val.UIDs = req.HTTPRequest().Form["uids"]
gates.PutMulti(req, val)
return response.NewJSONResponse(val)
}
}))
}
func setupAPIMembers(app *server.App) {
var API = app.API()
API.GET("/:artist/members/",
handlers.ArtistHandler(
func(req *wcg.Request, artist *hplink.Artist) response.Response {
memberQuery := Member.Query().Order("Index").Filter("ArtistKey=", artist.Key).Cache(fmt.Sprintf(ckAllMembersTemplate, artist.Key))
return middleware.EntityAll(memberQuery)(req)
},
))
API.GET("/:artist/members/:member.json",
handlers.MemberHandler(
func(req *wcg.Request, member *hplink.Member) response.Response {
return response.NewJSONResponse(member)
},
),
)
API.PUT("/:artist/members/:member.json",
handlers.AdminGate,
middleware.ParseForm(func(v *validators.FormValidator) {
v.Field("color").Required()
}),
handlers.MemberHandler(
func(req *wcg.Request, member *hplink.Member) response.Response {
if err := Member.UpdateEntityFromForm(member, req.HTTPRequest().Form); err != nil {
req.Logger.Warnf("UpdateEntityFromForm returns and error: %#v", err)
return response.APIBadRequest(middleware.ErrInvalidFormParameters)
}
Member.Put().Cache(ckAllMembersTemplate).MustUpdate(req, member)
return response.NewJSONResponse(member)
},
),
)
}
func EntityDelete(del *entities.Delete, keyParam string) server.Handler {
return server.Handler(
func(req *wcg.Request) response.Response {
del.Key(req.Param(keyParam)).MustCommit(req)
return response.NewJSONResponse(true)
})
}
func Parallel(handlers map[string]server.Handler) server.Handler {
return server.Handler(
func(req *wcg.Request) response.Response {
var status = make(map[string]int)
var data = make(map[string]interface{})
var mutex sync.Mutex
var wg sync.WaitGroup
for k, q := range handlers {
wg.Add(1)
go func(k string, h server.Handler) {
defer wg.Done()
v := h.Handle(req)
if vv, ok := v.(*response.JSONResponse); ok {
mutex.Lock()
defer mutex.Unlock()
status[k] = vv.StatusCode
data[k] = vv.Data
}
}(k, q)
}
wg.Wait()
for k, code := range status {
// return non 2xx response
if code > 0 && (code < 200 || code >= 300) {
return response.NewJSONResponseWithStatus(data[k], code)
}
}
return response.NewJSONResponse(data)
})
}
func setupAPIStats(app *server.App) {
var API = app.API()
// --------------------------------------------------------------------------
// Stats
API.GET("/stats/",
server.Handler(func(req *wcg.Request) response.Response {
stats, _ := runtime.Stats(gae.NewContext(req))
json := map[string]interface{}{
"version": lib.Commit,
"timestamp": lib.Timestamp,
"stats": stats,
"environment": lib.CurrentEnvironment(),
"envvars": lib.GetEnvVars(),
}
if _, dsStats, err := entities.DatastoreStat.Get().Key("total_entities_usage").One(req); err != nil {
json["datastore"] = dsStats
}
// use array response for API convention.
return response.NewJSONResponse(
[](map[string]interface{}){
json,
},
)
}))
}
func EntityTail(query *entities.Query) server.Handler {
return server.Handler(
func(req *wcg.Request) response.Response {
result := query.MustExecute(req)
return response.NewJSONResponse(result.Tail())
})
}
func setupAPIUsers(app *server.App) {
var API = app.API()
API.GET("/me/",
server.Handler(func(req *wcg.Request) response.Response {
if req.User == nil || request.ByGuest(req) {
return response.NewJSONResponse(nil)
}
return response.NewJSONResponse(req.User)
}))
API.POST("/me/gates/",
server.Handler(func(req *wcg.Request) response.Response {
keys := strings.Split(req.Form("keys"), ",")
result := gates.EvalKeys(req, keys...)
return response.NewJSONResponse(result)
}))
}
func EntityGet(get *entities.Get, keyParam string) server.Handler {
return server.Handler(
func(req *wcg.Request) response.Response {
_, one := get.Key(req.Param(keyParam)).MustOne(req)
if one == nil {
return response.APINotFound
}
return response.NewJSONResponse(one)
})
}
func setupAPIConfigs(app *server.App) {
var API = app.API()
API.GET("/configs/:userid/messenger.json",
middleware.Gate("family"),
validateUserID,
requireMessengeOptIn,
server.Handler(
func(req *wcg.Request) response.Response {
_, one := MessengerNotification.Get().Key(req.Param("userid")).UseDefaultIfNil(true).Cache(true).MustOne(req)
return response.NewJSONResponse(one)
},
))
API.PUT("/configs/:userid/messenger.json",
middleware.Gate("family"),
validateUserID,
requireMessengeOptIn,
middleware.ParseForm(nil),
middleware.EntityPutOrCreate(MessengerNotification.Put(), "userid"))
API.POST("/configs/:userid/messenger/notify/",
middleware.Gate("family"),
validateUserID,
requireMessengeOptIn,
server.Handler(
func(req *wcg.Request) response.Response {
content, err := createDailyNotificationContent(req)
if err != nil {
return response.InternalServerError(req, err)
}
err = messenger.NewMessengerClient(req).SendText(content.title + "\n" + strings.Join(content.lines, "\n"))
if err != nil {
req.Logger.Errorf("Failed to notify a message to messenger: %v", err)
}
return response.NewJSONResponse(map[string]interface{}{
"ok": true,
})
},
))
}
// Process implements wcg.Handler#Process
func (h *Cron) Process(res *wcg.Response, req *wcg.Request) {
req.Logger.Infof("[Cron] %s (%s) - start", h.Path, h.Time)
for _, handler := range h.handlers {
if err := handler(req); err != nil {
req.Logger.Fatalf("[Cron] %s (%s) - error: %v", h.Path, h.Description, err)
response.NewJSONResponseWithStatus(err, 500).Render(res, req)
return
}
}
req.Logger.Infof("[Cron] %s (%s) - finish", h.Path, h.Description)
response.NewJSONResponse(true).Render(res, req)
return
}
func Test_Parallel(t *testing.T) {
assert := gaetest.NewAssert(t)
router := wcg.NewRouter()
funA := server.Handler(func(req *wcg.Request) response.Response {
return response.NewJSONResponse(true)
})
funB := server.Handler(func(req *wcg.Request) response.Response {
return response.NewJSONResponse(false)
})
router.GET("/*", Parallel(map[string]server.Handler{
"a": funA,
"b": funB,
}))
req := ts.GET("/a/")
res := req.RouteTo(router)
var got map[string]bool
assert.HTTPStatus(200, res)
assert.JSONResponse(&got, res)
assert.OK(got["a"])
assert.Not(got["b"])
}
func setupAPIArtist(app *server.App) {
var API = app.API()
API.GET("/",
server.Handler(func(req *wcg.Request) response.Response {
pArtists := entities.Artist.Query().Order("Index").Cache(ckAllArtits).MustExecute(req)
artist := pArtists.Data.([]hplink.Artist)
if req.Query("w") == "members" {
iterator.MustParallelSlice(artist, func(i int, a *hplink.Artist) error {
pMembers := entities.Member.Query().Order("Index").Filter("ArtistKey=", a.Key).Cache(fmt.Sprintf(ckAllMembersTemplate, a.Key)).MustExecute(req)
artist[i].Members = pMembers.Data.([]hplink.Member)
return nil
})
}
return response.NewJSONResponse(artist)
}),
)
API.GET("/:artist/",
middleware.EntityGet(entities.Artist.Get().Cache(true), "artist"))
}
func execStatsQuery(req *wcg.Request, query *entities.Query) response.Response {
now := lib.Now()
until := wcg.ParseDateTimeOr(req.Query("until"), now)
if until.After(now) {
until = now
}
sinceDefault := until.Add(StatsQueryDefaultTimeWindow)
sinceMin := until.Add(StatsQueryMaxTimeWindow)
since := wcg.ParseDateTimeOr(req.Query("since"), until.Add(-24*time.Hour))
if since.After(until) {
since = sinceDefault
} else if sinceMin.After(since) {
since = sinceMin
}
query = query.Filter("Timestamp >=", since).Filter("Timestamp <", until)
if req.Query("device") != "" {
query = query.Filter("Device =", req.Query("device"))
}
return response.NewJSONResponse(query.MustExecute(req).Data)
}
req,
fmt.Errorf(
"token mismatch: hub.verify_token(%q) != facebook_messenger_verify_token(%q)",
req.Query("hub.verify_token"), token,
),
)
}
return response.NewTextResponse(req.Query("hub.challenge"))
})
// WebhookHandler is a server.Handler to respond setup HTTP call from a Facebook server
var WebHookHandler = server.Handler(func(req *wcg.Request) response.Response {
messages, perr := parseMessage(req.HTTPRequest().Body)
if perr != nil {
req.Logger.Warnf("Server could not parse incomming messenger hook message: %s", perr)
return response.NewJSONResponse(true)
}
for _, msg := range messages {
switch msg.(type) {
case *MessageAuthentication:
if err := performAuthentication(req, msg.(*MessageAuthentication)); err != nil {
req.Logger.Warnf("Could not perform messenger authentication...: %v", err)
return response.NewJSONResponse(true)
}
for _, options := range handlers {
if options.HandleAuthentication != nil {
if err := options.HandleAuthentication(req, msg.(*MessageAuthentication)); err != nil {
req.Logger.Warnf("Could not handle messenger authentication...: %v", err)
return response.NewJSONResponse(true)
}
}
func setupAPIIEPGRecords(app *server.App) {
var API = app.API()
API.GET("/iepg/records/",
middleware.EntityQuery(recentRecordsQuery()))
API.GET("/iepg/records/:id.json",
middleware.EntityGet(IEPG.Get().Cache(true), "id"))
API.POST("/iepg/records/",
middleware.Gate("family"),
middleware.ParseForm(func(v *validators.FormValidator) {
v.Field("program_title").Required()
v.Field("start_at").Required()
v.Field("end_at").Required()
v.Field("category").Required()
v.Field("cid").Required()
v.Field("sid").Required()
}),
middleware.EntityPost(
IEPG.Put().
SetField("Source", pt.IEPGSourceUser).
Cache(_CacheRecentIEPGRecords),
),
)
API.PUT("/iepg/records/:id.json",
middleware.Gate("family"),
middleware.ParseForm(func(v *validators.FormValidator) {
v.Field("program_title").Required()
v.Field("start_at").Required()
v.Field("end_at").Required()
v.Field("category").Required()
v.Field("cid").Required()
v.Field("sid").Required()
}),
requireIEPGOwner("id"),
middleware.EntityPut(
IEPG.Put().
SetField("Source", pt.IEPGSourceUser).
Cache(_CacheRecentIEPGRecords),
"id",
),
)
API.POST("/iepg/records/:id/notification.json",
middleware.Gate("family"),
getIEPG("id", func(req *wcg.Request, iepg *pt.IEPG) response.Response {
var msg string
var configs []pt.MessengerNotification
var err error
t := req.Form("type")
switch t {
case "start":
msg = fmt.Sprintf("[%s] 録画を開始しました。", iepg.ProgramTitle)
configs, err = getMessengerNotificationOptInUsers(req, "OnStart")
break
case "end":
msg = fmt.Sprintf("[%s] 録画を終了しました。", iepg.ProgramTitle)
configs, err = getMessengerNotificationOptInUsers(req, "OnEnd")
break
default:
return response.BadRequest(req, fmt.Errorf("`type` should be specified and must be one of 'start', 'end' (actual=%s)", t))
}
if err != nil {
return response.InternalServerError(req, err)
}
if req.Form("message") != "" {
msg = fmt.Sprintf("%s\n%s", msg, req.Form("message"))
}
for _, cfg := range configs {
client := messenger.NewMessengerClient(req)
client.UserID = cfg.UserID
err = client.SendText(msg)
if err != nil {
req.Logger.Warnf("Failed to send a messenger message: %v", err)
}
}
return response.NewJSONResponse(true)
}),
)
API.DELETE("/iepg/records/:id.json",
middleware.Gate("family"),
requireIEPGOwner("id"),
middleware.EntityDelete(IEPG.Delete().Cache(_CacheRecentIEPGRecords), "id"))
// optin or optout for auto collected IEPGs
API.PUT("/iepg/records/:id/opt-in/",
middleware.Gate("family"),
getIEPG("id", func(req *wcg.Request, iepg *pt.IEPG) response.Response {
err := iepg.SetOptIn(req.Form("opt_in") == "1" || req.Form("opt_in") == "true")
if err != nil {
return response.BadRequest(req, fmt.Errorf("Could not configure opt-in field on the user created IEPG"))
}
IEPG.Put().Key(req.Param("id")).Cache(_CacheRecentIEPGRecords).MustUpdate(req, iepg)
return response.NewJSONResponse(map[string]bool{
"ok": true,
"opt_in": iepg.OptIn,
"opt_out": iepg.OptOut,
})
}),
)
}
func setupAPICrawlerSettings(app *server.App) {
var API = app.API()
var urlValidator = server.Handler(func(req *wcg.Request) response.Response {
_, err := url.Parse(req.Param("url"))
if err != nil {
return response.APINotFound
}
return nil
})
API.GET("/crawlersettings/:type/",
middleware.EntityAll(CrawlerSettings.Query().Filter("Type=", request.Value(func(req *wcg.Request) interface{} {
t, _ := hplink.ParseCrawlerSettingsType(req.Param("type"))
if t == hplink.CrawlerSettingsTypeUnknown {
return entities.FilterValueSkip
}
return t
}))),
)
API.GET("/crawlersettings/ameblo/stats/",
server.Handler(func(req *wcg.Request) response.Response {
type post struct {
URL string `json:"url"`
At time.Time `json:"at"`
}
type stats struct {
URL string `json:"url"`
FirstPost *post `json:"first_post,omitempty"`
LastPost *post `json:"last_post,omitempty"`
TotalPosts int `json:"total_posts"`
CrawledPosts int `json:"crawled_posts"`
ImageFailurePosts int `json:"image_failure_posts"`
}
p := CrawlerSettings.Query().Filter("Type=", hplink.CrawlerSettingsTypeAmeblo).MustExecute(req)
settings := p.Data.([]hplink.CrawlerSettings)
s := make([]stats, len(settings))
if err := iterator.ParallelSlice(settings, func(i int, v *hplink.CrawlerSettings) error {
s[i].URL = v.URL
s[i].TotalPosts = AmebloPost.Query().Filter("SettingsURL=", v.URL).MustCount(req)
if s[i].TotalPosts > 0 {
s[i].CrawledPosts = AmebloPost.Query().Filter("SettingsURL=", v.URL).Filter("IsContentsCrawled=", true).MustCount(req)
s[i].ImageFailurePosts = AmebloPost.Query().Filter("SettingsURL=", v.URL).Filter("Images.Height=", 0).MustCount(req)
pf := AmebloPost.Query().Filter("SettingsURL=", v.URL).Order("PostAt").Limit(1).MustExecute(req)
pl := AmebloPost.Query().Filter("SettingsURL=", v.URL).Order("-PostAt").Limit(1).MustExecute(req)
first := pf.Head().(*hplink.AmebloPost)
last := pl.Head().(*hplink.AmebloPost)
s[i].FirstPost = &post{
URL: first.URL, At: first.PostAt,
}
s[i].LastPost = &post{
URL: last.URL, At: last.PostAt,
}
return nil
}
return nil
}); err != nil {
panic(err)
}
return response.NewJSONResponse(s)
}),
)
API.GET("/crawlersettings/:url.json",
middleware.EntityGet(CrawlerSettings.Get(), "url"),
)
API.PUT("/crawlersettings/:url.json",
urlValidator,
middleware.ParseForm(func(v *validators.FormValidator) {
v.Field("artist_key").Required()
}),
middleware.EntityPutOrCreate(
CrawlerSettings.Put(),
"url",
),
)
API.DELETE("/crawlersettings/:url.json",
urlValidator,
middleware.EntityDelete(CrawlerSettings.Delete(), "url"),
)
}
func setupAPIStats(app *server.App) {
var API = app.API()
API.GET("/stats/servers/",
middleware.EntityAll(Server.Query()))
API.GET("/stats/nasdisks/",
middleware.EntityAll(NASDisk.Query()))
API.GET("/stats/servers/:server/:stats/",
server.Handler(
func(req *wcg.Request) response.Response {
key, _ := Server.Get().Key(req.Param("server")).Cache(true).MustOne(req)
if key == nil {
req.Logger.Debugf("server %q is not found.", req.Param("server"))
return response.NotFound(req)
}
var kind *entities.Kind
switch req.Param("stats") {
case "system":
kind = SystemStats
break
case "cpu":
kind = CPUStats
break
case "memory":
kind = MemoryStats
break
case "disk":
kind = DiskStats
break
case "filesystem":
kind = FileSystemStats
break
case "network":
kind = NetworkStats
break
default:
req.Logger.Debugf("metric %q is invalid.", req.Param("stats"))
return response.NotFound(req)
}
return execStatsQuery(req, kind.Query().Ancestor(key))
},
))
API.POST("/stats/metrics/",
middleware.APITokenOnly(),
server.Handler(
func(req *wcg.Request) response.Response {
ent, err := SystemMetric.CreateEntitiesFromJSON(req.HTTPRequest().Body)
if err != nil {
return response.BadRequest(req, err)
}
collection := home.NewStatsFromMetrics(ent.([]*home.SystemMetric))
if len(collection) == 0 {
return response.BadRequest(req, fmt.Errorf("No stats are collected."))
}
if collection[0].System.ServerName == "" {
return response.BadRequest(req, fmt.Errorf("server_name is missing"))
}
for _, stats := range collection {
key := getServerKey(req, stats.System.ServerName)
id := fmt.Sprintf("%s.%d", key.StringID(), stats.Timestamp.Unix())
stats.System.ID = id
stats.CPU.ID = id
stats.Memory.ID = id
for _, v := range stats.Disks {
v.ID = fmt.Sprintf("%s.%s.%d", key.StringID(), v.DeviceName, stats.Timestamp.Unix())
}
for _, v := range stats.Networks {
v.ID = fmt.Sprintf("%s.%s.%d", key.StringID(), v.DeviceName, stats.Timestamp.Unix())
}
SystemStats.Put().Parent(key).MustUpdate(req, stats.System)
CPUStats.Put().Parent(key).MustUpdate(req, stats.CPU)
MemoryStats.Put().Parent(key).MustUpdate(req, stats.Memory)
DiskStats.PutMulti().Parent(key).MustUpdate(req, stats.Disks)
NetworkStats.PutMulti().Parent(key).MustUpdate(req, stats.Networks)
}
return response.NewJSONResponse(true)
},
))
API.POST("/stats/filesystem/",
middleware.APITokenOnly(),
server.Handler(
func(req *wcg.Request) response.Response {
ent, err := FileSystemStats.CreateEntitiesFromJSON(req.HTTPRequest().Body)
if err != nil {
return response.BadRequest(req, err)
}
filesystems := ent.([]*home.FileSystemStats)
if filesystems[0].ServerName == "" {
return response.BadRequest(req, fmt.Errorf("server_name is missing"))
}
key := getServerKey(req, filesystems[0].ServerName)
for _, fs := range filesystems {
fs.ID = fmt.Sprintf("%s.%s.%d", fs.ServerName, fs.Name, fs.Timestamp.Unix())
}
FileSystemStats.PutMulti().Parent(key).MustUpdate(req, filesystems)
return response.NewJSONResponse(true)
},
))
API.POST("/stats/smart/",
middleware.APITokenOnly(),
server.Handler(
func(req *wcg.Request) response.Response {
ent, err := SMARTStats.CreateEntitiesFromJSON(req.HTTPRequest().Body)
if err != nil {
return response.BadRequest(req, err)
}
smartstats := ent.([]*home.SMARTStats)
if smartstats[0].Serial == "" {
return response.BadRequest(req, fmt.Errorf("serial is missing"))
}
key := getNASDiskKey(req, smartstats[0].Serial)
for _, smart := range smartstats {
smart.ID = fmt.Sprintf("%s.%d", smart.Serial, smart.Timestamp.Unix())
}
SMARTStats.PutMulti().Parent(key).MustUpdate(req, smartstats)
return response.NewJSONResponse(true)
},
))
}
func setupAPIDatastore(app *server.App) {
var API = app.API()
if lib.IsOnLocalGAE() {
API.GET("/datastore/cleanup/:kind.json",
server.Handler(func(req *wcg.Request) response.Response {
k := entities.FindKind(req.Param("kind"), req.Query("ns"))
if k == nil {
return response.NotFound(req)
}
num := k.DeleteQuery().MustCommit(req)
return response.NewJSONResponse(map[string]int{
"entities": num,
})
}),
)
}
API.GET("/datastore/export/:kind.json",
middleware.APITokenOnly(),
server.Handler(func(req *wcg.Request) response.Response {
k := entities.FindKind(req.Param("kind"), req.Query("ns"))
if k == nil {
return response.NotFound(req)
}
// TODO: export with gzip
return middleware.EntityStreaming(
k.Query().Order(fmt.Sprintf("-%s", k.TimestampFieldName)).Limit(
wcg.ParseInt(req.Query("limit"), 100, -1, math.MaxInt32),
),
true,
).Handle(req)
}))
API.POST("/datastore/import/:kind.json",
middleware.APITokenOnly(),
server.Handler(func(req *wcg.Request) response.Response {
k := entities.FindKind(req.Param("kind"), req.Query("ns"))
if k == nil {
return response.NotFound(req)
}
var line = 0
var total = 0
var errors = make([]*entityImportError, 0)
var list = make([]interface{}, 0, 100)
var keys = make([]*datastore.Key, 0, 100)
var buff []byte
var err error
reader := bufio.NewReaderSize(req.HTTPRequest().Body, 4096)
for err != io.EOF {
buff, err = reader.ReadBytes('\n')
line += 1
if err != nil && err != io.EOF {
return response.InternalServerError(req, err)
}
buff = bytes.TrimSpace(buff)
if len(buff) == 0 { // skip empty row
continue
}
var row entityImportRow
if err2 := json.Unmarshal(buff, &row); err2 != nil {
errors = append(errors, &entityImportError{
Line: line,
Error: fmt.Sprintf("%v - (row: %q)", err2, buff),
})
continue
}
ent, err2 := k.NewEntityFromJSON([]byte(row.Entity))
if err2 != nil {
}
total = total + 1
keys = append(keys, buildKey(req, row.Key))
list = append(list, ent)
if len(list) == 100 {
k.PutMulti().DatastoreKeys(keys...).DoNotUpdateTimestamp(true).MustUpdate(req, list)
list = make([]interface{}, 0, 100)
keys = make([]*datastore.Key, 0, 100)
}
}
if len(list) > 0 {
k.PutMulti().DatastoreKeys(keys...).DoNotUpdateTimestamp(true).MustUpdate(req, list)
}
return response.NewJSONResponse(&entityImportResult{
Total: total,
Lines: line - 1,
Errors: errors,
})
}))
}
func setupAPIIEPGKeywords(app *server.App) {
var API = app.API()
API.GET("/iepg/keywords/",
middleware.EntityAll(IEPGKeyword.Query().Cache(_CacheAllIEPGKeywords)))
API.POST("/iepg/keywords/",
middleware.Gate("family"),
middleware.ParseForm(func(v *validators.FormValidator) {
v.Field("keyword").Required()
v.Field("category").Required()
v.IntField("scope").Required()
}),
middleware.EntityPost(IEPGKeyword.Put().Cache(_CacheAllIEPGKeywords)))
API.DELETE("/iepg/keywords/:id.json",
middleware.Gate("family"),
middleware.EntityDelete(IEPGKeyword.Delete().Cache(_CacheAllIEPGKeywords), "id"))
API.POST("/iepg/keywords/preview/",
middleware.Gate("family"),
middleware.ParseForm(func(v *validators.FormValidator) {
v.Field("keyword").Required()
v.IntField("scope").Required()
}),
server.Handler(
func(req *wcg.Request) response.Response {
list, err := crawlKeyword(req, &pt.IEPGKeyword{
Keyword: req.Form("keyword"),
Scope: pt.ParseIEPGCrawlerScope(req.Form("scope")),
})
if err != nil {
return response.InternalServerError(req, err)
}
return response.NewJSONResponse(map[string]interface{}{
"hits": list,
})
},
))
var AsyncAPI = app.AsyncAPI()
keywordCrawlTask := AsyncAPI.Define("/iepg/keywords/task/")
keywordCrawlTask.Queue.Rate = "1/s"
keywordCrawlTask.Queue.MaxConcurrentRequests = "1"
keywordCrawlTask.OnTrigger(middleware.Gate("family"))
keywordCrawlTask.OnMonitor(middleware.Gate("family"))
keywordCrawlTask.OnProcess(server.AsyncTaskHandler(
func(req *wcg.Request, t *models.AsyncAPITask) (*models.AsyncAPITaskProgress, error) {
data := IEPGKeyword.Query().Cache(_CacheAllIEPGKeywords).MustExecute(req).Data
if data == nil {
return nil, nil
}
var keywords = data.([]pt.IEPGKeyword)
req.Logger.Infof("Crawling %d keywords", len(keywords))
for _, key := range keywords {
list, err := crawlKeyword(req, &key)
if err != nil {
return nil, err
}
IEPG.PutMulti().Cache(_CacheAllIEPGKeywords).MustUpdate(req, list)
}
return nil, nil
},
))
keywordCrawlTask.ScheduleCron(
"Crawl IEPG keywords",
"every 1 hours",
)
}
// Define endpoints to process an async task.
func (helper *AsyncAPIHelper) Define(path string) *AsyncAPIConfig {
if !strings.HasSuffix(path, "/") {
panic(fmt.Errorf("Task endpoint must end with '/' (%s)", path))
}
api := helper.app.API()
// /path/to/something/ => api-path-to-something
p := api.Path(path)
name := strings.Replace(p[1:len(p)-1], ":", "", -1) // remove parameters
name = strings.Replace(name, "/", "-", -1) // replace '/' with '-'
config := &AsyncAPIConfig{
Queue: helper.app.Queue().DefinePush(name),
app: helper.app,
path: path,
}
// Endpoint that trigger the task.
api.POST(path, Handler(
func(req *wcg.Request) response.Response {
for _, h := range config.triggerHandlers {
resp := h.Handle(req)
if resp != nil {
req.Logger.Debugf("Async Task is not triggered.")
return resp
}
}
task := &models.AsyncAPITask{}
task.ID = wcg.NewUUID()
task.Path = path
task.Query = req.HTTPRequest().URL.RawQuery
task.Status = models.AsyncAPIStatusReady
entities.AsyncAPITask.Put().Key(string(task.ID)).MustUpdate(req, task)
// Push a task
taskPath := fmt.Sprintf("%s%s.json?%s", req.URL().Path, string(task.ID), req.HTTPRequest().URL.Query().Encode())
if err := config.Queue.PushTask(req, taskPath, nil); err != nil {
return response.InternalServerError(req, err)
}
req.Logger.Infof("Triggered an async task [id:%s path:%s]", task.ID, taskPath)
return response.NewJSONResponseWithStatus(
AsyncTaskTriggerResponse{task.ID},
201,
)
},
))
// Endpoint that executes the task in background
// This endpoint must be called by PushQueue
api.POST(path+":taskid.json", Handler(
func(req *wcg.Request) response.Response {
if !request.IsTask(req) {
req.Logger.Warnf(
"Non system call to the async task endpoint: UserAgent=%s, IP=%s",
req.HTTPRequest().UserAgent(),
req.HTTPRequest().RemoteAddr,
)
return response.APIOK
}
_, one := entities.AsyncAPITask.Get().Key(req.Param("taskid")).MustOne(req)
if one == nil {
req.Logger.Warnf(
"Task %q not found: UserAgent=%s, IP=%s",
req.Param("taskid"),
req.HTTPRequest().UserAgent(),
req.HTTPRequest().RemoteAddr,
)
return response.APIOK
}
task := one.(*models.AsyncAPITask)
logger := wcg.NewLoggerWithPrefix(req, fmt.Sprintf("[AsyncTask: %s (queue: %s)]", task.ID, name))
if task.Status != models.AsyncAPIStatusReady && task.Status != models.AsyncAPIStatusRunning {
logger.Warnf("Task is not ready: Status=%s", task.Status)
return response.APIOK
}
if task.Status == models.AsyncAPIStatusReady {
task.StartAt = lib.Now()
task.Status = models.AsyncAPIStatusRunning
entities.AsyncAPITask.Put().Key(req.Param("taskid")).MustUpdate(req, task)
}
var err error
var progress *models.AsyncAPITaskProgress
var resp response.Response
func() {
defer func() {
if x := recover(); x != nil {
logger.Errorf("Unhandle error recovered from the task: %v", x)
err = fmt.Errorf("%v", x)
}
}()
progress, err = config.processHandler(req, task)
}()
if progress != nil {
task.Progress = append(task.Progress, *progress)
}
if progress != nil && progress.Next != nil {
// update the entity (Progress field)
entities.AsyncAPITask.Put().Key(req.Param("taskid")).MustUpdate(req, task)
// Push a next request into the queue
// This is not required in test environment as test code manually call the next request (see testhelper.AsyncTaskTestRunner#Run code)
// The test environment uses the response JSON to call the next URL and that response is used only for this purpose.
// If the code cannot push task for the next request, we should stop the task as failure.
logger.Infof("Task needs to call recursively: Next parameter is %v", progress.Next)
if !req.IsTest() {
err = config.Queue.PushTask(req, fmt.Sprintf("%s?%s", req.URL().Path, progress.Next.Encode()), nil)
}
if err == nil {
return response.NewJSONResponse(progress.Next)
}
// if an error occurrs by PushTask, just stopping the task and update the datastore as failure.
}
// finished the task
task.FinishAt = lib.Now()
tt := task.FinishAt.Sub(task.StartAt)
if err == nil {
task.Status = models.AsyncAPIStatusSuccess
logger.Infof("Task finished successfully (time: %s)", tt.String())
resp = response.APIOK
} else {
task.Error = err.Error()
task.Status = models.AsyncAPIStatusFailure
logger.Errorf("Task failed (time: %s): %s", tt.String(), task.Error)
resp = response.APIInternalServerError
}
entities.AsyncAPITask.Put().Key(req.Param("taskid")).MustUpdate(req, task)
return resp
},
))
// Endpoint that returns the task status.
api.GET(path+":taskid.json", Handler(
func(req *wcg.Request) response.Response {
for _, h := range config.triggerHandlers {
resp := h.Handle(req)
if resp != nil {
return resp
}
}
_, one := entities.AsyncAPITask.Get().Key(req.Param("taskid")).MustOne(req)
if one == nil {
return response.NotFound(req)
}
task := one.(*models.AsyncAPITask)
return response.NewJSONResponse(
AsyncTaskMonitorResponse{
ID: task.ID,
Status: task.Status,
Progress: task.LastProgress(),
},
)
},
))
return config
}