func HandleFind(registry kit.Registry, request kit.Request) (kit.Response, bool) {
collection := request.GetContext().MustString("collection")
res := registry.Resource(collection)
if res == nil || !res.IsPublic() {
err := &apperror.Err{
Code: "unknown_resource",
Message: fmt.Sprintf("The resource '%v' does not exist", collection),
}
return kit.NewErrorResponse(err), false
}
response, err := Find(res, request)
if err != nil {
response = kit.NewErrorResponse(err)
}
// If response contains a count and the request a "perPage" param, add a total_pages param
// to meta.
perPage, err2 := request.GetContext().Int("per_page")
meta := response.GetMeta()
if meta != nil && err2 == nil {
count, ok := meta["count"]
if ok {
meta["total_pages"] = math.Ceil(float64(count.(int)) / float64(perPage))
}
}
return response, false
}
func (a *App) RunMethod(name string, r kit.Request, responder func(kit.Response), withFinishedChannel bool) (chan bool, apperror.Error) {
method := a.registry.Method(name)
if method == nil {
return nil, &apperror.Err{
Code: "unknown_method",
Message: fmt.Sprintf("The method %v does not exist", name),
}
}
if r.GetSession() == nil {
session, err := a.UserService().StartSession(r.GetUser(), "")
if err != nil {
return nil, err
}
r.SetSession(session)
}
instance := NewMethodInstance(method, r, responder)
if withFinishedChannel {
c := make(chan bool)
instance.finishedChannel = c
return c, a.sessionManager.QueueMethod(r.GetSession(), instance)
} else {
return nil, a.sessionManager.QueueMethod(r.GetSession(), instance)
}
}
func notFoundHandler(registry kit.Registry, r kit.Request) (kit.Response, bool) {
httpRequest := r.GetHttpRequest()
apiPrefix := "/" + registry.Config().UString("api.prefix", "api")
isApiRequest := strings.HasPrefix(httpRequest.URL.Path, apiPrefix)
// Try to render the page on the server, if enabled.
if !isApiRequest {
renderEnabled := registry.Config().UBool("serverRenderer.enabled", false)
noRender := strings.Contains(httpRequest.URL.String(), "no-server-render")
if renderEnabled && !noRender {
return serverRenderer(registry, r), false
}
}
// For non-api requests, render the default template.
if !isApiRequest {
tpl, err := getIndexTpl(registry)
if err != nil {
return kit.NewErrorResponse(err), false
}
return &kit.AppResponse{
RawData: tpl,
}, false
}
// For api requests, render the api not found error.
return &kit.AppResponse{
Error: &apperror.Err{
Code: "not_found",
Message: "This api route does not exist",
},
}, false
}
func (_ FilesResource) ApiCreate(res kit.Resource, obj kit.Model, r kit.Request) kit.Response {
// Verify that tmp path is set either in metadata or on model.
file := obj.(kit.File)
if file.GetTmpPath() == "" {
file.SetTmpPath(r.GetMeta().String("file"))
}
filePath := file.GetTmpPath()
if filePath == "" {
return kit.NewErrorResponse("no_tmp_path", "A tmp path must be set when creating a file", true)
}
tmpPath := getTmpPath(res)
if !strings.HasPrefix(filePath, tmpPath) && filePath[0] != '/' {
filePath = tmpPath + string(os.PathSeparator) + filePath
file.SetTmpPath(filePath)
}
// Build the file, save it to backend and persist it to the db.
err := res.Registry().FileService().BuildFile(file, r.GetUser(), true, true)
if err != nil {
kit.NewErrorResponse(err)
}
return &kit.AppResponse{
Data: file,
}
}
func (PageResource) ApiAlterQuery(res kit.Resource, query db.Query, r kit.Request) apperror.Error {
typ := r.GetContext().String("type")
if typ != "" {
query.Filter("type", typ)
}
return nil
}
func SerializeResponseMiddleware(registry kit.Registry, request kit.Request, response kit.Response) (kit.Response, bool) {
// Try to serialize the reponse data.
// Determine serializer.
serializer := registry.DefaultSerializer()
// Check if a custom serializer was specified.
if name := request.GetContext().String("response-serializer"); name != "" {
serializer = registry.Serializer(name)
if serializer == nil {
errResp := kit.NewErrorResponse("unknown_response_serializer", true)
data, _ := serializer.MustSerializeResponse(errResp)
errResp.SetData(data)
return errResp, false
}
}
// Set format in metadata.
meta := response.GetMeta()
if meta == nil {
meta = make(map[string]interface{})
}
meta["format"] = serializer.Name()
response.SetMeta(meta)
data, err := serializer.MustSerializeResponse(response)
if err != nil {
registry.Logger().Errorf("Response serialization error: %v (%+v)", err, response)
}
response.SetData(data)
return nil, false
}
// Creating a session is equivalent to logging in.
func (hooks SessionResourceHooks) ApiCreate(res kit.Resource, obj kit.Model, r kit.Request) kit.Response {
userService := res.Registry().UserService()
meta := r.GetMeta()
isAnonymous, _ := meta.Bool("anonymous")
// Find user.
userIdentifier := meta.String("user")
adaptor := meta.String("adaptor")
data, _ := meta.Map("authData")
var user kit.User
if !isAnonymous {
if adaptor == "" {
return kit.NewErrorResponse("adaptor_missing", "Expected 'adaptor' in metadata.", true)
}
if data == nil {
kit.NewErrorResponse("no_or_invalid_auth_data", "Expected 'authData' dictionary in metadata.")
}
var err apperror.Error
user, err = userService.AuthenticateUser(userIdentifier, adaptor, data)
if err != nil {
return kit.NewErrorResponse(err)
}
}
session, err := userService.StartSession(user, r.GetFrontend())
if err != nil {
return kit.NewErrorResponse(err)
}
responseMeta := make(map[string]interface{})
if !isAnonymous {
userData, err := res.Backend().ModelToMap(user, true, false)
if err != nil {
return kit.NewErrorResponse("marshal_error", err)
}
responseMeta["user"] = userData
if user.GetProfile() != nil {
profileData, err := res.Backend().ModelToMap(user.GetProfile(), true, false)
if err != nil {
return kit.NewErrorResponse("marshal_error", err)
}
responseMeta["profile"] = profileData
}
}
return &kit.AppResponse{
Data: session,
Meta: responseMeta,
}
}
// UnserializeRequest converts request data into a request object.
func (s *Serializer) UnserializeRequest(rawData interface{}, request kit.Request) apperror.Error {
transData, err := s.UnserializeTransferData(rawData)
if err != nil {
return err
}
request.SetTransferData(transData)
request.SetData(transData.GetData())
return nil
}
func (SessionResourceHooks) ApiDelete(res kit.Resource, id string, r kit.Request) kit.Response {
if id != r.GetSession().GetStrId() {
return kit.NewErrorResponse("permission_denied", "Permission denied", 403)
}
if err := res.Backend().Delete(r.GetSession()); err != nil {
return kit.NewErrorResponse("db_delete_error", err, true)
}
return &kit.AppResponse{}
}
func ServerErrorMiddleware(registry kit.Registry, r kit.Request, response kit.Response) (kit.Response, bool) {
err := response.GetError()
if err == nil {
return nil, false
}
status := 500
// If the error is an apperror, and it contains a status,
// set it as the http status of the response.
if apperr, ok := err.(apperror.Error); ok {
if apperr.GetStatus() != 0 {
status = apperr.GetStatus()
}
}
response.SetHttpStatus(status)
if response.GetRawData() != nil || response.GetRawDataReader() != nil {
return nil, false
}
httpRequest := r.GetHttpRequest()
apiPrefix := "/" + registry.Config().UString("api.prefix", "api")
isApiRequest := strings.HasPrefix(httpRequest.URL.Path, apiPrefix)
if isApiRequest {
return nil, false
}
data := map[string]interface{}{"errors": []error{response.GetError()}}
tpl := defaultErrorTpl()
tplPath := registry.Config().UString("frontend.errorTemplate")
if tplPath != "" {
t, err := template.ParseFiles(tplPath)
if err != nil {
registry.Logger().Fatalf("Could not parse error template at '%v': %v", tplPath, err)
} else {
tpl = t
}
}
var buffer *bytes.Buffer
if err := tpl.Execute(buffer, data); err != nil {
registry.Logger().Fatalf("Could not render error template: %v\n", err)
response.SetRawData([]byte("Server error"))
} else {
response.SetRawData(buffer.Bytes())
}
return nil, false
}
func HandleDelete(registry kit.Registry, request kit.Request) (kit.Response, bool) {
collection := request.GetContext().MustString("collection")
id := request.GetContext().MustString("id")
res := registry.Resource(collection)
if res == nil || !res.IsPublic() {
resp := kit.NewErrorResponse("unknown_resource", fmt.Sprintf("The resource '%v' does not exist", collection))
return resp, false
}
return res.ApiDelete(id, request), false
}
func (res *Resource) ApiPartialUpdate(obj kit.Model, r kit.Request) kit.Response {
if updateHook, ok := res.hooks.(ApiUpdateHook); ok {
return updateHook.ApiUpdate(res, obj, r)
}
user := r.GetUser()
err := res.PartialUpdate(obj, user)
if err != nil {
return kit.NewErrorResponse(err)
}
return &kit.AppResponse{
Data: obj,
}
}
func (hooks UserResourceHooks) ApiCreate(res kit.Resource, obj kit.Model, r kit.Request) kit.Response {
meta := r.GetMeta()
adaptor := meta.String("adaptor")
if adaptor == "" {
return kit.NewErrorResponse("adaptor_missing", "Expected 'adaptor' in metadata.", true)
}
rawData, ok := meta.Get("authData")
if !ok {
return kit.NewErrorResponse("auth_data_missing", "Expected 'authData' in metadata.", true)
}
data, ok := rawData.(map[string]interface{})
if !ok {
return kit.NewErrorResponse("invalid_auth_data", "Invalid auth data: expected dictionary", true)
}
user := obj.(kit.User)
service := res.Registry().UserService()
// If a profile model was registered, and profile data is in meta,
// create the profile model.
if profiles := service.ProfileResource(); profiles != nil {
profile := profiles.CreateModel().(kit.UserProfile)
if rawData, ok := meta.Get("profile"); ok {
if data, ok := rawData.(map[string]interface{}); ok {
// Profile data present in meta.
// Update profile with data.
if err := res.ModelInfo().UpdateModelFromData(profile, data); err != nil {
return kit.NewErrorResponse("invalid_profile_data", "Invalid profile data.", err, true)
}
}
}
user.SetProfile(profile)
}
if err := service.CreateUser(user, adaptor, data); err != nil {
return kit.NewErrorResponse(err)
}
return &kit.AppResponse{
Data: user,
}
}
func AuthenticationMiddleware(registry kit.Registry, r kit.Request) (kit.Response, bool) {
// Handle authentication.
httpRequest := r.GetHttpRequest()
userService := registry.UserService()
if userService == nil {
return nil, false
}
authHeader := httpRequest.Header.Get("Authentication")
if authHeader == "" {
return nil, false
}
// Check for basic auth.
if strings.HasPrefix(authHeader, "Basic ") {
str := authHeader[6:]
data, err := base64.StdEncoding.DecodeString(str)
if err != nil {
return kit.NewErrorResponse("invalid_basic_auth"), false
} else {
parts := strings.Split(string(data), ":")
if len(parts) == 2 {
userIdentifier := parts[0]
pw := parts[1]
user, err := userService.AuthenticateUser(userIdentifier, "password", map[string]interface{}{"password": pw})
if err != nil {
return kit.NewErrorResponse(err), false
}
r.SetUser(user)
return nil, false
}
}
}
// Check for auth token.
if authHeader != "" {
token := authHeader
user, session, err := userService.VerifySession(token)
if err == nil {
r.SetUser(user)
r.SetSession(session)
return nil, false
} else {
return kit.NewErrorResponse(err), false
}
}
return nil, false
}
func Update(registry kit.Registry, request kit.Request) (kit.Response, apperror.Error) {
collection := request.GetContext().MustString("collection")
res := registry.Resource(collection)
if res == nil || !res.IsPublic() {
return nil, &apperror.Err{
Code: "unknown_resource",
Message: fmt.Sprintf("The resource '%v' does not exist", collection),
}
}
model, ok := request.GetData().(kit.Model)
if !ok {
return nil, apperror.New("invalid_data_no_model", "Node model data in request.")
}
response := res.ApiUpdate(model, request)
return response, nil
}
func (res *Resource) ApiDelete(id string, r kit.Request) kit.Response {
if deleteHook, ok := res.hooks.(ApiDeleteHook); ok {
return deleteHook.ApiDelete(res, id, r)
}
oldObj, err := res.FindOne(id)
if err != nil {
return kit.NewErrorResponse(err)
} else if oldObj == nil {
return kit.NewErrorResponse("not_found", "")
}
user := r.GetUser()
if err := res.Delete(oldObj, user); err != nil {
return kit.NewErrorResponse(err)
}
return &kit.AppResponse{
Data: oldObj,
}
}
func UnserializerMiddleware(registry kit.Registry, request kit.Request) (kit.Response, bool) {
serializer := registry.DefaultSerializer()
// Try to find custom serializer.
data, ok := request.GetData().(map[string]interface{})
if ok {
name, ok := data["request_serializer"].(string)
if ok {
s := registry.Serializer(name)
if s == nil {
resp := kit.NewErrorResponse("unknown_request_serializer", fmt.Sprintf("The given request serializer %v does not exist", name))
return resp, false
} else {
serializer = s
}
}
}
if err := serializer.UnserializeRequest(request.GetData(), request); err != nil {
return kit.NewErrorResponse(err), false
}
return nil, false
}
func (res *Resource) ApiFindOne(rawId string, r kit.Request) kit.Response {
hook, ok := res.hooks.(ApiFindOneHook)
if ok {
return hook.ApiFindOne(res, rawId, r)
}
result, err := res.FindOne(rawId)
if err != nil {
return kit.NewErrorResponse(err)
} else if result == nil {
return kit.NewErrorResponse("not_found", "")
}
user := r.GetUser()
if allowFind, ok := res.hooks.(AllowFindHook); ok {
if !allowFind.AllowFind(res, result, user) {
return kit.NewErrorResponse("permission_denied", "")
}
}
return &kit.AppResponse{
Data: result,
}
}
func Create(registry kit.Registry, request kit.Request) (kit.Response, apperror.Error) {
collection := request.GetContext().MustString("collection")
res := registry.Resource(collection)
if res == nil || !res.IsPublic() {
return nil, &apperror.Err{
Code: "unknown_resource",
Message: fmt.Sprintf("The resource '%v' does not exist", collection),
}
}
fmt.Printf("data: %v | %+v\n\n", nil, request.GetData())
model, ok := request.GetData().(kit.Model)
if !ok {
return nil, apperror.New("invalid_data_no_model", "No model data in request.")
}
response := res.ApiCreate(model, request)
if response.GetError() == nil {
response.SetHttpStatus(201)
}
return response, nil
}
func Find(res kit.Resource, request kit.Request) (kit.Response, apperror.Error) {
collection := res.Collection()
info := res.Backend().ModelInfo(collection)
var query *db.Query
jsonQuery := request.GetContext().String("query")
if jsonQuery != "" {
var rawQuery map[string]interface{}
if err := json.Unmarshal([]byte(jsonQuery), &rawQuery); err != nil {
return nil, apperror.Wrap(err, "invalid_query_json")
}
rawQuery["collection"] = collection
// A custom query was supplied.
// Try to parse the query.
var err apperror.Error
query, err = db.ParseQuery(res.Backend(), rawQuery)
if err != nil {
return nil, apperror.Wrap(err, "invalid_query", "", false)
}
}
if query == nil {
query = res.Backend().Q(collection)
}
// Check paging parameters.
var limit, offset int
context := request.GetContext()
if context.Has("limit") {
val, err := context.Int("limit")
if err != nil {
return nil, &apperror.Err{
Public: true,
Code: "non_numeric_limit_parameter",
Message: "The get query contains a non-numeric ?limit",
}
}
limit = val
}
if context.Has("offset") {
val, err := context.Int("offset")
if err != nil {
return nil, &apperror.Err{
Public: true,
Code: "non_numeric_offset_parameter",
Message: "The get query contains a non-numeric ?offset",
}
}
offset = val
}
var page, perPage int
if context.Has("page") {
val, err := context.Int("page")
if err != nil {
return nil, &apperror.Err{
Public: true,
Code: "non_numeric_page_parameter",
Message: "The get query contains a non-numeric ?page",
}
}
page = val
}
if context.Has("per_page") {
val, err := context.Int("per_page")
if err != nil {
return nil, &apperror.Err{
Public: true,
Code: "non_numeric_per_page_parameter",
Message: "The get query contains a non-numeric ?per_page",
}
}
perPage = val
}
if perPage > 0 {
limit = perPage
}
if page > 1 {
offset = (page - 1) * limit
}
if limit > 0 {
query.Limit(int(limit)).Offset(int(offset))
}
// Add joins.
if context.Has("joins") {
parts := strings.Split(context.String("joins"), ",")
for _, name := range parts {
relation := info.FindRelation(name)
if relation == nil {
return nil, &apperror.Err{
Code: "invalid_join",
Message: fmt.Sprintf("Tried to join a NON-existant relationship %v", name),
Public: true,
}
}
query.Join(relation.Name())
}
}
// Add filters.
if context.Has("filters") {
parts := strings.Split(context.String("filters"), ",")
for _, filter := range parts {
filterParts := strings.Split(filter, ":")
if len(filterParts) != 2 {
return nil, &apperror.Err{
Public: true,
Code: "invalid_filter",
Message: fmt.Sprintf("Invalid filter: %v", filter),
}
}
fieldName := filterParts[0]
// COnvert id query to pk field.
if fieldName == "id" {
fieldName = info.PkAttribute().BackendName()
}
var typ reflect.Type
if attr := info.FindAttribute(fieldName); attr != nil {
fieldName = attr.BackendName()
typ = attr.Type()
} else if rel := info.FindRelation(fieldName); rel != nil {
if rel.RelationType() == db.RELATION_TYPE_HAS_ONE {
fieldName = rel.LocalField()
typ = info.Attribute(rel.LocalField()).Type()
} else {
return nil, &apperror.Err{
Public: true,
Code: "cant_filter_on_relation",
Message: fmt.Sprintf("Tried to filter on relationship field %v (only possible for has-one relations)", fieldName),
}
}
} else {
return nil, &apperror.Err{
Public: true,
Code: "filter_for_inexistant_field",
Message: fmt.Sprintf("Tried to filter with inexistant field %v", fieldName),
}
}
converted, err := reflector.R(filterParts[1]).ConvertTo(typ)
if err != nil {
return nil, &apperror.Err{
Public: true,
Code: "inconvertible_filter_value",
Message: fmt.Sprintf("Coult not convert filter value %v for field %v (should be %v)",
filterParts[1], fieldName, typ),
}
}
query.Filter(fieldName, converted)
}
}
return res.ApiFind(query, request), nil
}
func RequestLoggerMiddleware(registry kit.Registry, r kit.Request, response kit.Response) (kit.Response, bool) {
// Calculate time taken.
rawStarted, ok1 := r.GetContext().Get("startTime")
rawFinished, ok2 := r.GetContext().Get("endTime")
timeTaken := int64(-1)
if ok1 && ok2 {
started := rawStarted.(time.Time)
finished := rawFinished.(time.Time)
timeTaken = int64(finished.Sub(started) / time.Millisecond)
}
// Log the request.
method := r.GetHttpMethod()
path := r.GetPath()
if response.GetError() != nil {
registry.Logger().WithFields(logrus.Fields{
"frontend": r.GetFrontend(),
"action": "request",
"method": method,
"path": path,
"status": response.GetHttpStatus(),
"err": response.GetError(),
"milliseconds": timeTaken,
}).Errorf("%v: %v - %v - %v", response.GetHttpStatus(), method, path, response.GetError())
} else {
registry.Logger().WithFields(logrus.Fields{
"frontend": r.GetFrontend(),
"action": "request",
"method": method,
"path": path,
"status": response.GetHttpStatus(),
"milliseconds": timeTaken,
}).Debugf("%v: %v - %v", response.GetHttpStatus(), method, path)
}
return nil, false
}
func serverRenderer(registry kit.Registry, r kit.Request) kit.Response {
url := r.GetHttpRequest().URL
// Build the url to query.
if url.Scheme == "" {
url.Scheme = "http"
}
if url.Host == "" {
url.Host = registry.Config().UString("host", "localhost") + ":" + registry.Config().UString("port", "8000")
}
q := url.Query()
q.Set("no-server-render", "1")
url.RawQuery = q.Encode()
strUrl := url.String()
cacheKey := "serverrenderer_" + strUrl
cacheName := registry.Config().UString("serverRenderer.cache")
var cache kit.Cache
// If a cache is specified, try to retrieve it.
if cacheName != "" {
cache = registry.Cache(cacheName)
if cache == nil {
registry.Logger().Errorf("serverRenderer.cache is set to %v, but the cache is not registered with app", cacheName)
}
}
// If a cache was found, try to retrieve cached response.
if cache != nil {
item, err := cache.Get(cacheKey)
if err != nil {
registry.Logger().Errorf("serverRenderer: cache retrieval error: %v", err)
} else if item != nil {
// Cache item found, return response with cache item.
status, _ := strconv.ParseInt(item.GetTags()[0], 10, 64)
data, _ := item.ToString()
return &kit.AppResponse{
HttpStatus: int(status),
RawData: []byte(data),
}
}
}
// Either no cache or url not yet cached, so render it.
// First, ensure that the tmp directory exists.
tmpDir := path.Join(registry.Config().TmpDir(), "phantom")
if ok, _ := utils.FileExists(tmpDir); !ok {
if err := os.MkdirAll(tmpDir, 0777); err != nil {
return &kit.AppResponse{
Error: &apperror.Err{
Code: "create_tmp_dir_failed",
Message: fmt.Sprintf("Could not create the tmp directory at %v: %v", tmpDir, err),
},
}
}
}
// Build a unique file name.
filePath := path.Join(tmpDir, utils.UUIdv4()+".html")
// Execute phantom js.
// Find path of phantom script.
_, filename, _, _ := runtime.Caller(1)
scriptPath := path.Join(path.Dir(path.Dir(filename)), "phantom", "render.js")
start := time.Now()
phantomPath := registry.Config().UString("serverRenderer.phantomJsPath", "phantomjs")
args := []string{
"--web-security=false",
"--local-to-remote-url-access=true",
scriptPath,
"10",
strUrl,
filePath,
}
result, err := exec.Command(phantomPath, args...).CombinedOutput()
if err != nil {
registry.Logger().Errorf("Phantomjs execution error: %v", string(result))
return &kit.AppResponse{
Error: apperror.Wrap(err, "phantom_execution_failed"),
}
}
// Get time taken as milliseconds.
timeTaken := int(time.Now().Sub(start) / time.Millisecond)
registry.Logger().WithFields(log.Fields{
"action": "phantomjs_render",
"milliseconds": timeTaken,
}).Debugf("Rendered url %v with phantomjs", url)
content, err2 := utils.ReadFile(filePath)
if err2 != nil {
return kit.NewErrorResponse(err2)
}
// Find http status code.
status := 200
res := regexp.MustCompile("http_status_code\\=(\\d+)").FindStringSubmatch(string(content))
if res != nil {
s, _ := strconv.ParseInt(res[1], 10, 64)
status = int(s)
}
// Save to cache.
if cache != nil {
lifetime := registry.Config().UInt("serverRenderer.cacheLiftetime", 3600)
err := cache.Set(&caches.StrItem{
Key: cacheKey,
Value: string(content),
Tags: []string{strconv.FormatInt(int64(status), 10)},
ExpiresAt: time.Now().Add(time.Duration(lifetime) * time.Second),
})
if err != nil {
registry.Logger().Errorf("serverRenderer: Cache persist error: %v", err)
}
}
return &kit.AppResponse{
HttpStatus: status,
RawData: content,
}
}
func (res *Resource) ApiFind(query *db.Query, r kit.Request) kit.Response {
// If query is empty, query for all records.
if query == nil {
query = res.Q()
}
apiFindHook, ok := res.hooks.(ApiFindHook)
if ok {
return apiFindHook.ApiFind(res, query, r)
}
if alterQuery, ok := res.hooks.(ApiAlterQueryHook); ok {
alterQuery.ApiAlterQuery(res, query, r)
}
result, err := res.Query(query)
if err != nil {
return kit.NewErrorResponse(err)
}
user := r.GetUser()
if allowFind, ok := res.hooks.(AllowFindHook); ok {
finalItems := make([]kit.Model, 0)
for _, item := range result {
if allowFind.AllowFind(res, item, user) {
finalItems = append(finalItems, item)
}
}
result = finalItems
}
response := &kit.AppResponse{
Data: result,
}
// If a limit was set, count the total number of results
// and set count parameter in metadata.
limit := query.GetLimit()
if limit > 0 {
query.Limit(0).Offset(0)
count, err := res.backend.Count(query)
if err != nil {
return &kit.AppResponse{
Error: apperror.Wrap(err, "count_error", ""),
}
}
response.SetMeta(map[string]interface{}{
"count": count,
"total_pages": math.Ceil(float64(count) / float64(limit)),
})
}
if hook, ok := res.hooks.(ApiAfterFindHook); ok {
if err := hook.ApiAfterFind(res, result, r, response); err != nil {
return kit.NewErrorResponse(err)
}
}
return response
}
func RequestTraceMiddleware(registry kit.Registry, r kit.Request) (kit.Response, bool) {
r.GetContext().Set("startTime", time.Now())
return nil, false
}
func UnserializeRequestMiddleware(registry kit.Registry, request kit.Request) (kit.Response, bool) {
// Try to parse json in body. Ignore error since body might not contain json.
contentType := request.GetHttpRequest().Header.Get("Content-Type")
if strings.Contains(contentType, "json") {
// Only read the HTTP body automatically for json content type requests,
// since some handlers might need to read it themselfes (see the files package resource).
if err := request.ReadHttpBody(); err != nil {
return kit.NewErrorResponse(err, "http_body_read_error"), false
} else {
if request.GetRawData() != nil {
if err := request.ParseJsonData(); err != nil {
return kit.NewErrorResponse(err, "invalid_json_body", true), false
}
if request.GetData() != nil {
// Successfully parsed json body.
// Now try to unserialize.
// Determine serializer.
serializer := registry.DefaultSerializer()
// Check if a custom serializer was specified.
if name := request.GetContext().String("request-serializer"); name != "" {
serializer = registry.Serializer(name)
}
if serializer == nil {
return kit.NewErrorResponse("unknown_serializer", fmt.Sprintf("The specified request serializer does not exist")), false
} else {
if err := request.Unserialize(serializer); err != nil {
return kit.NewErrorResponse(err, "request_unserialize_error", true), false
}
}
}
}
}
}
return nil, false
}
func RequestTraceAfterMiddleware(registry kit.Registry, r kit.Request, response kit.Response) (kit.Response, bool) {
r.GetContext().Set("endTime", time.Now())
return nil, false
}