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apiModule.go
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apiModule.go
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package base
import (
"bytes"
"encoding/base64"
"fmt"
"io"
"math"
"net/url"
"os"
"strings"
"sync"
"time"
"github.com/open-horizon/edge-sync-service/common"
"github.com/open-horizon/edge-sync-service/core/communications"
"github.com/open-horizon/edge-sync-service/core/dataURI"
"github.com/open-horizon/edge-sync-service/core/dataVerifier"
"github.com/open-horizon/edge-sync-service/core/storage"
"github.com/open-horizon/edge-utilities/logger"
"github.com/open-horizon/edge-utilities/logger/log"
"github.com/open-horizon/edge-utilities/logger/trace"
)
var apiLock sync.RWMutex
var apiObjectLocks common.Locks
func init() {
apiObjectLocks = *common.NewLocks("api")
}
// UpdateObject invoked when an app sends an updated object
func UpdateObject(orgID string, objectType string, objectID string, metaData common.MetaData, data []byte) common.SyncServiceError {
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In UpdateObject. Update %s %s %s\n", orgID, objectType, objectID)
}
common.HealthStatus.ClientRequestReceived()
if !common.IsValidName(orgID) {
return &common.InvalidRequest{Message: fmt.Sprintf("Organization ID (%s) contains invalid characters", orgID)}
}
// Verify that the object is valid
if metaData.ObjectID == "" {
return &common.InvalidRequest{Message: "Object's meta data does not contain object's ID"}
}
if objectID != metaData.ObjectID {
message := fmt.Sprintf("Object ID (%+v) in the URL doesn't match the object-id (%+v) in the payload", objectID, metaData.ObjectID)
return &common.InvalidRequest{Message: message}
}
if !common.IsValidName(objectID) {
return &common.InvalidRequest{Message: fmt.Sprintf("Object ID (%s) contains invalid characters", objectID)}
}
if metaData.ObjectType == "" {
return &common.InvalidRequest{Message: "Object's meta data does not contain object's type"}
}
if objectType != metaData.ObjectType {
message := fmt.Sprintf("Object type (%+v) in the URL doesn't match the object-type (%+v) in the payload", objectType, metaData.ObjectType)
return &common.InvalidRequest{Message: message}
}
if !common.IsValidName(objectType) {
return &common.InvalidRequest{Message: fmt.Sprintf("Object type (%s) contains invalid characters", objectType)}
}
if metaData.HashAlgorithm != "" && metaData.HashAlgorithm != common.Sha1 && metaData.HashAlgorithm != common.Sha256 {
return &common.InvalidRequest{Message: fmt.Sprintf("Hash Algorithm (%s) is not supported. Please use %s or %s if specify", metaData.HashAlgorithm, common.Sha1, common.Sha256)}
}
// verify publicKey and signature is base64 encoded
if metaData.PublicKey != "" {
if _, err := base64.StdEncoding.DecodeString(metaData.PublicKey); err != nil {
return &common.InvalidRequest{Message: "PublicKey is not base64 encoded. Error: " + err.Error()}
}
}
if metaData.Signature != "" {
if _, err := base64.StdEncoding.DecodeString(metaData.Signature); err != nil {
return &common.InvalidRequest{Message: "Signature is not base64 encoded. Error: " + err.Error()}
}
}
if metaData.Expiration != "" {
if common.Configuration.NodeType == common.ESS {
return &common.InvalidRequest{Message: "Object expiration is disabled on ESS"}
}
expiration, err := time.Parse(time.RFC3339, metaData.Expiration)
if err != nil {
return &common.InvalidRequest{Message: "Failed to parse expiration in object's meta data. Error: " + err.Error()}
}
if time.Now().After(expiration) {
return &common.InvalidRequest{Message: "Invalid expiration time in object's meta data"}
}
}
if metaData.Version != "" && !common.IsValidName(metaData.Version) {
return &common.InvalidRequest{Message: fmt.Sprintf("Version (%s) contains one/some invalid characters (eg: <, >, =, ', \", &, space, \\, /)", metaData.Version)}
}
if metaData.Description != "" && common.IsInvalidDescription(metaData.Description) {
return &common.InvalidRequest{Message: fmt.Sprintf("Description (%s) contains one/some invalid characters (<, >, =, ', \", &, space, \\, /)", metaData.Description)}
}
if metaData.MetaOnly && len(data) != 0 {
return &common.InvalidRequest{Message: "Can't update data if MetaOnly is true"}
}
if metaData.DestID != "" && metaData.DestType == "" {
return &common.InvalidRequest{Message: "Destination ID provided without destination type in object's meta data"}
}
if metaData.DestinationsList != nil && common.Configuration.NodeType == common.ESS {
return &common.InvalidRequest{Message: "Destinations list is not supported for ESS"}
}
if metaData.DestinationsList != nil && metaData.DestType != "" {
return &common.InvalidRequest{Message: "Both destinations list and destination type are specified"}
}
if validatedDestList, _ := common.ValidateDestinationListInput(metaData.DestinationsList); validatedDestList == false {
return &common.InvalidRequest{Message: "Unsupported char <, > in destinationsList."}
}
if metaData.DestinationPolicy != nil {
if metaData.DestType != "" {
return &common.InvalidRequest{Message: "Both destination policy and destination type are specified"}
}
if metaData.DestinationsList != nil {
return &common.InvalidRequest{Message: "Both destination policy and destination list are specified"}
}
properties := metaData.DestinationPolicy.Properties
for _, property := range properties {
if len(property.Name) == 0 {
return &common.InvalidRequest{Message: "A property in the DestinationPolicy must have a name"}
}
}
services := metaData.DestinationPolicy.Services
for _, service := range services {
if len(service.OrgID) == 0 || len(service.Arch) == 0 || len(service.ServiceName) == 0 || len(service.Version) == 0 {
return &common.InvalidRequest{
Message: "A service in a DestinationPolicy must have an organization ID, architecture, service name, and version specified"}
}
if _, err := common.ParseSemVerRange(service.Version); err != nil {
return &common.InvalidRequest{
Message: fmt.Sprintf("A service in the DestinationPolicy has an invalid version `%s`", service.Version)}
}
}
}
if metaData.DestType != "" && !common.IsValidName(metaData.DestType) {
return &common.InvalidRequest{Message: fmt.Sprintf("Destination type (%s) contains invalid characters", metaData.DestType)}
}
if metaData.AutoDelete && metaData.DestinationsList == nil && metaData.DestID == "" {
return &common.InvalidRequest{Message: "AutoDelete can be used only for objects with DestinationsList or DestID set"}
}
if metaData.ActivationTime != "" && metaData.Inactive {
activation, err := time.Parse(time.RFC3339, metaData.ActivationTime)
if err != nil {
return &common.InvalidRequest{Message: "Failed to parse activation time in object's meta data. Error: " + err.Error()}
}
if time.Now().After(activation) {
return &common.InvalidRequest{Message: "Invalid activation time in object's meta data"}
}
}
if metaData.Deleted {
return &common.InvalidRequest{Message: "Object marked as deleted"}
}
if metaData.DestinationDataURI != "" {
if common.Configuration.NodeType == common.ESS {
return &common.InvalidRequest{Message: "Data URI is disabled on CSS"}
}
uri, err := url.Parse(metaData.DestinationDataURI)
if err != nil || !strings.EqualFold(uri.Scheme, "file") || uri.Host != "" {
return &common.InvalidRequest{Message: "Invalid destination data URI"}
}
}
if metaData.SourceDataURI != "" {
if common.Configuration.NodeType == common.CSS {
return &common.InvalidRequest{Message: "Data URI is disabled on CSS"}
}
if data != nil {
return &common.InvalidRequest{Message: "Both source data URI and data are set"}
}
uri, err := url.Parse(metaData.SourceDataURI)
if err != nil || !strings.EqualFold(uri.Scheme, "file") || uri.Host != "" {
return &common.InvalidRequest{Message: "Invalid source data URI"}
}
if fi, err := os.Stat(uri.Path); err == nil {
metaData.ObjectSize = fi.Size()
} else {
log.Error(" Invalid source data URI: %s, failed to get file information for the file, err= %v\n", metaData.SourceDataURI, err)
return &common.InvalidRequest{Message: "Invalid source data URI"}
}
}
if metaData.OriginType == "" || metaData.OriginID == "" {
// Set the origin so the other side can respond
metaData.OriginType = common.Configuration.DestinationType
metaData.OriginID = common.Configuration.DestinationID
} else {
// metaData.OriginType != "" && metaData.OriginID != "", check if given valud is valid
if !common.IsValidName(metaData.OriginType) {
return &common.InvalidRequest{Message: fmt.Sprintf("OriginType (%s) contains one/some invalid characters (eg: <, >, =, ', \", &, space, \\, /)", metaData.OriginType)}
} else if !common.IsValidName(metaData.OriginID) {
return &common.InvalidRequest{Message: fmt.Sprintf("OriginID (%s) contains one/some invalid characters (eg: <, >, =, ', \", &, space, \\, /)", metaData.OriginID)}
}
}
if metaData.DestOrgID == "" {
metaData.DestOrgID = orgID
} else if !common.IsValidName(metaData.DestOrgID) {
return &common.InvalidRequest{Message: fmt.Sprintf("DestOrgID (%s) contains one/some invalid characters (eg: <, >, =, ', \", &, space, \\, /)", metaData.DestOrgID)}
}
if metaData.ExpectedConsumers == 0 {
metaData.ExpectedConsumers = 1
} else if metaData.ExpectedConsumers == -1 {
metaData.ExpectedConsumers = math.MaxInt32
}
// Store the object in the storage module
status := common.NotReadyToSend
if data != nil || metaData.Link != "" || metaData.NoData || metaData.SourceDataURI != "" {
status = common.ReadyToSend
} else if metaData.MetaOnly {
reader, err := store.RetrieveObjectData(metaData.DestOrgID, metaData.ObjectType, metaData.ObjectID)
if err != nil {
return err
}
if reader != nil {
status = common.ReadyToSend
store.CloseDataReader(reader)
}
}
lockIndex := common.HashStrings(metaData.DestOrgID, metaData.ObjectType, metaData.ObjectID)
apiObjectLocks.Lock(lockIndex)
defer apiObjectLocks.Unlock(lockIndex)
common.ObjectLocks.Lock(lockIndex)
if metaData.NoData {
data = nil
metaData.Link = ""
metaData.SourceDataURI = ""
metaData.PublicKey = ""
metaData.Signature = ""
} else if data != nil {
// data signature verification if metadata has both publicKey and signature
// data is nil for metaOnly object. Meta-only object will not apply data verification
if common.IsValidHashAlgorithm(metaData.HashAlgorithm) && metaData.PublicKey != "" && metaData.Signature != "" {
// will no store data if object metadata not exist
dataReader := bytes.NewReader(data)
dataVf := dataVerifier.NewDataVerifier(metaData.HashAlgorithm, metaData.PublicKey, metaData.Signature)
if success, err := dataVf.VerifyDataSignature(dataReader, orgID, objectType, objectID, ""); !success || err != nil {
if trace.IsLogging(logger.ERROR) {
trace.Error("Failed to verify data for object %s %s, remove temp data\n", objectType, objectID)
}
dataVf.RemoveTempData(orgID, objectType, objectID, "")
common.ObjectLocks.Unlock(lockIndex)
return err
}
dataVf.RemoveTempData(orgID, objectType, objectID, "")
}
metaData.ObjectSize = int64(len(data))
}
metaData.ChunkSize = common.Configuration.MaxDataChunkSize
deletedDestinations, err := store.StoreObject(metaData, data, status)
if err != nil {
common.ObjectLocks.Unlock(lockIndex)
return err
}
store.DeleteNotificationRecords(metaData.DestOrgID, metaData.ObjectType, metaData.ObjectID, "", "")
if status == common.NotReadyToSend || metaData.Inactive {
common.ObjectLocks.Unlock(lockIndex)
return nil
}
// StoreObject increments the instance id, we need to fetch the updated meta data
updatedMetaData, err := store.RetrieveObject(metaData.DestOrgID, metaData.ObjectType, metaData.ObjectID)
if err != nil {
common.ObjectLocks.Unlock(lockIndex)
return err
}
var deleteNotificationsInfo []common.NotificationInfo
if len(deletedDestinations) != 0 {
deleteNotificationsInfo, err = communications.PrepareNotificationsForDestinations(*updatedMetaData, deletedDestinations, common.Delete)
if err != nil {
common.ObjectLocks.Unlock(lockIndex)
return err
}
}
updateNotificationsInfo, err := communications.PrepareObjectNotifications(*updatedMetaData)
common.ObjectLocks.Unlock(lockIndex)
if err != nil {
return err
}
if deleteNotificationsInfo != nil {
if err := communications.SendNotifications(deleteNotificationsInfo); err != nil {
return err
}
}
return communications.SendNotifications(updateNotificationsInfo)
}
// GetObjectStatus sends the status of the object to the app
// Call the storage module to get the status of the object and return it in the response
func GetObjectStatus(orgID string, objectType string, objectID string) (string, common.SyncServiceError) {
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In GetObjectStatus. Get status of %s %s\n", objectType, objectID)
}
common.HealthStatus.ClientRequestReceived()
lockIndex := common.HashStrings(orgID, objectType, objectID)
apiObjectLocks.RLock(lockIndex)
defer apiObjectLocks.RUnlock(lockIndex)
return store.RetrieveObjectStatus(orgID, objectType, objectID)
}
// ListUpdatedObjects provides a list of edge updated objects
// Call the storage module to get the list of edge updated objects and send it to the app
func ListUpdatedObjects(orgID string, objectType string, received bool) ([]common.MetaData, common.SyncServiceError) {
apiLock.RLock()
defer apiLock.RUnlock()
common.HealthStatus.ClientRequestReceived()
updatedObjects, err := store.RetrieveUpdatedObjects(orgID, objectType, received)
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In ListUpdatedObjects. Get %s %s. returned %d objects\n", orgID, objectType, len(updatedObjects))
}
return updatedObjects, err
}
// ListObjectsWithDestinationPolicy provides a list of objects that have a DestinationPolicy
func ListObjectsWithDestinationPolicy(orgID string, received bool) ([]common.ObjectDestinationPolicy, common.SyncServiceError) {
apiLock.RLock()
defer apiLock.RUnlock()
common.HealthStatus.ClientRequestReceived()
objects, err := store.RetrieveObjectsWithDestinationPolicy(orgID, received)
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In ListObjectsWithDestinationPolicy. Get %s. Returned %d objects\n", orgID, len(objects))
}
return objects, err
}
// ListObjectsWithDestinationPolicyByService provides a list of objects that have a DestinationPolicy and are
// associated with a service
func ListObjectsWithDestinationPolicyByService(orgID, serviceOrgID, serviceName string) ([]common.ObjectDestinationPolicy, common.SyncServiceError) {
apiLock.RLock()
defer apiLock.RUnlock()
common.HealthStatus.ClientRequestReceived()
objects, err := store.RetrieveObjectsWithDestinationPolicyByService(orgID, serviceOrgID, serviceName)
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In ListObjectsWithDestinationPolicyByService. Get %s/%s. Returned %d objects\n",
serviceOrgID, serviceName, len(objects))
}
return objects, err
}
// ListObjectsWithDestinationPolicyUpdatedSince provides a list of objects that have a DestinationPolicy that has been updated since the specified time
func ListObjectsWithDestinationPolicyUpdatedSince(orgID string, since int64) ([]common.ObjectDestinationPolicy, common.SyncServiceError) {
apiLock.RLock()
defer apiLock.RUnlock()
common.HealthStatus.ClientRequestReceived()
objects, err := store.RetrieveObjectsWithDestinationPolicyUpdatedSince(orgID, since)
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In ListObjectsWithDestinationPolicyByService. Get %s since %d. Returned %d objects\n",
orgID, since, len(objects))
}
return objects, err
}
// ListObjectsWithFilters provides a list of objects that satisfy the given conditions
func ListObjectsWithFilters(orgID string, destinationPolicy *bool, dpServiceOrgID string, dpServiceName string, dpPropertyName string, since int64, objectType string, objectID string, destinationType string, destinationID string, noData *bool, expirationTimeBefore string) ([]common.MetaData, common.SyncServiceError) {
apiLock.RLock()
defer apiLock.RUnlock()
common.HealthStatus.ClientRequestReceived()
objects, err := store.RetrieveObjectsWithFilters(orgID, destinationPolicy, dpServiceOrgID, dpServiceName, dpPropertyName, since, objectType, objectID, destinationType, destinationID, noData, expirationTimeBefore)
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In ListObjectsWithFilters. Get %s. Returned %d objects\n", orgID, len(objects))
}
return objects, err
}
// ListAllObjects provides a list of all objects with the specified type
func ListAllObjects(orgID string, objectType string) ([]common.ObjectDestinationPolicy, common.SyncServiceError) {
apiLock.RLock()
defer apiLock.RUnlock()
common.HealthStatus.ClientRequestReceived()
objects, err := store.RetrieveAllObjects(orgID, objectType)
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In ListAllObjects. Get %s:%s. Returned %d objects\n", orgID, objectType, len(objects))
}
return objects, err
}
// GetObject delivers an object to the app
// Call the storage module to get the object's meta data and send it to the app
func GetObject(orgID string, objectType string, objectID string) (*common.MetaData, common.SyncServiceError) {
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In GetObject. Get %s %s\n", objectType, objectID)
}
common.HealthStatus.ClientRequestReceived()
lockIndex := common.HashStrings(orgID, objectType, objectID)
apiObjectLocks.RLock(lockIndex)
defer apiObjectLocks.RUnlock(lockIndex)
return store.RetrieveObject(orgID, objectType, objectID)
}
// GetObjectData delivers object data to the app
// Call the storage module to get the object's data and send it to the app
func GetObjectData(orgID string, objectType string, objectID string) (io.Reader, common.SyncServiceError) {
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In GetObjectData. Get data %s %s\n", objectType, objectID)
}
common.HealthStatus.ClientRequestReceived()
lockIndex := common.HashStrings(orgID, objectType, objectID)
apiObjectLocks.RLock(lockIndex)
defer apiObjectLocks.RUnlock(lockIndex)
metaData, status, err := store.RetrieveObjectAndStatus(orgID, objectType, objectID)
if err != nil {
return nil, err
}
if metaData == nil || status == common.NotReadyToSend || status == common.PartiallyReceived {
return nil, nil
}
if metaData.DestinationDataURI != "" && status == common.CompletelyReceived {
return dataURI.GetData(metaData.DestinationDataURI)
}
if metaData.SourceDataURI != "" && status == common.ReadyToSend {
return dataURI.GetData(metaData.SourceDataURI)
}
return store.RetrieveObjectData(orgID, objectType, objectID)
}
// GetRemovedDestinationPolicyServicesFromESS get the removedDestinationPolicyServices list
// Call the storage module to get the object's removedDestinationPolicyServices
func GetRemovedDestinationPolicyServicesFromESS(orgID string, objectType string, objectID string) ([]common.ServiceID, common.SyncServiceError) {
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In GetRemovedDestinationPolicyServicesFromESS. Get RemovedDestinationPolicyServices for object %s %s\n", objectType, objectID)
}
common.HealthStatus.ClientRequestReceived()
lockIndex := common.HashStrings(orgID, objectType, objectID)
apiObjectLocks.RLock(lockIndex)
defer apiObjectLocks.RUnlock(lockIndex)
_, removedDestinationPolicyServices, err := store.RetrieveObjectAndRemovedDestinationPolicyServices(orgID, objectType, objectID)
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In GetRemovedDestinationPolicyServicesFromESS. Get %d RemovedDestinationPolicyServices for object %s %s\n", len(removedDestinationPolicyServices), objectType, objectID)
}
return removedDestinationPolicyServices, err
}
// PutObjectData stores an object's data
// Verify data signature (if publicKey and signature both have value)
// Call the storage module to store the object's data
// Return true if the object was found and updated
// Return false and no error if the object was not found
func PutObjectData(orgID string, objectType string, objectID string, dataReader io.Reader) (bool, common.SyncServiceError) {
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In PutObjectData. Update data %s %s\n", objectType, objectID)
}
common.HealthStatus.ClientRequestReceived()
lockIndex := common.HashStrings(orgID, objectType, objectID)
apiObjectLocks.Lock(lockIndex)
defer apiObjectLocks.Unlock(lockIndex)
common.ObjectLocks.Lock(lockIndex)
metaData, status, err := store.RetrieveObjectAndStatus(orgID, objectType, objectID)
if err != nil {
common.ObjectLocks.Unlock(lockIndex)
return false, err
}
if metaData == nil {
common.ObjectLocks.Unlock(lockIndex)
return false, nil
}
if status != common.ReadyToSend && status != common.NotReadyToSend {
common.ObjectLocks.Unlock(lockIndex)
return false, &common.InvalidRequest{Message: "Can't update data of the receiving side"}
}
if metaData.NoData {
common.ObjectLocks.Unlock(lockIndex)
return false, &common.InvalidRequest{Message: "Can't update data, the NoData flag is set to true"}
}
var dataVf *dataVerifier.DataVerifier
if common.IsValidHashAlgorithm(metaData.HashAlgorithm) && metaData.PublicKey != "" && metaData.Signature != "" {
//start data verification
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In PutObjectData. Start data verification %s %s\n", objectType, objectID)
}
dataVf = dataVerifier.NewDataVerifier(metaData.HashAlgorithm, metaData.PublicKey, metaData.Signature)
if success, err := dataVf.VerifyDataSignature(dataReader, orgID, objectType, objectID, ""); !success || err != nil {
if trace.IsLogging(logger.ERROR) {
trace.Error("Failed to verify data for object %s %s, remove temp data\n", objectType, objectID)
}
dataVf.RemoveTempData(orgID, objectType, objectID, "")
common.ObjectLocks.Unlock(lockIndex)
return false, &common.InvalidRequest{Message: "Failed to verify and store data, Error: " + err.Error()}
}
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In PutObjectData. data verified for object %s %s\n", objectType, objectID)
}
}
// If the data has been verified, then we retrieve the temp data, store in DB, and delete temp data
if dataVf != nil {
if err := dataVf.StoreVerifiedData(orgID, objectType, objectID, ""); err != nil {
dataVf.RemoveTempData(orgID, objectType, objectID, "")
common.ObjectLocks.Unlock(lockIndex)
return false, err
}
} else {
if exists, err := store.StoreObjectData(orgID, objectType, objectID, dataReader); err != nil || !exists {
common.ObjectLocks.Unlock(lockIndex)
return false, err
}
}
if metaData.SourceDataURI != "" {
if err = store.UpdateObjectSourceDataURI(orgID, objectType, objectID, ""); err != nil {
common.ObjectLocks.Unlock(lockIndex)
return false, err
}
}
var updatedMetaData *common.MetaData
// StoreObject increments the instance id if this is a data update, we need to fetch the updated meta data
// Also, StoreObjectData updates the ObjectSize, so we need to fetch the updated meta data
updatedMetaData, err = store.RetrieveObject(orgID, objectType, objectID)
if err != nil {
common.ObjectLocks.Unlock(lockIndex)
return false, err
}
if updatedMetaData.Inactive {
// Don't send inactive objects to the other side
common.ObjectLocks.Unlock(lockIndex)
return true, nil
}
notificationsInfo, err := communications.PrepareObjectNotifications(*updatedMetaData)
common.ObjectLocks.Unlock(lockIndex)
if err != nil {
return true, err
}
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In PutObjectData. done with storing data for object %s %s\n", objectType, objectID)
}
return true, communications.SendNotifications(notificationsInfo)
}
// ObjectConsumed is used when an app indicates that it consumed the object
// Send "consumed" notification to the object's origin
// Call the storage module to mark the object as consumed
func ObjectConsumed(orgID string, objectType string, objectID string) common.SyncServiceError {
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In ObjectConsumed. Consumed %s %s\n", objectType, objectID)
}
common.HealthStatus.ClientRequestReceived()
lockIndex := common.HashStrings(orgID, objectType, objectID)
apiObjectLocks.Lock(lockIndex)
defer apiObjectLocks.Unlock(lockIndex)
common.ObjectLocks.Lock(lockIndex)
metaData, status, err := store.RetrieveObjectAndStatus(orgID, objectType, objectID)
if err != nil {
if log.IsLogging(logger.ERROR) {
log.Error("Failed to find object %s to mark as consumed. Error: %s", orgID+":"+objectType+":"+objectID, err.Error())
}
common.ObjectLocks.Unlock(lockIndex)
return err
}
if status == "" {
if log.IsLogging(logger.ERROR) {
log.Error("Failed to find object %s to mark as consumed.", orgID+":"+objectType+":"+objectID)
}
common.ObjectLocks.Unlock(lockIndex)
return &common.InvalidRequest{Message: "Failed to find object to mark as consumed"}
}
if status != common.CompletelyReceived && status != common.ObjReceived {
message := fmt.Sprintf("Invalid attempt to mark object in status %s as consumed\n", status)
if log.IsLogging(logger.ERROR) {
log.Error(message)
}
common.ObjectLocks.Unlock(lockIndex)
return &common.InvalidRequest{Message: message}
}
if c, err := store.DecrementAndReturnRemainingConsumers(orgID, objectType, objectID); err != nil {
if log.IsLogging(logger.ERROR) {
log.Error("Error in objectConsumed: failed to decrement consumers count. Error: %s\n", err)
}
common.ObjectLocks.Unlock(lockIndex)
} else if c == 0 {
if err := store.UpdateObjectStatus(orgID, objectType, objectID, common.ObjConsumed); err != nil {
common.ObjectLocks.Unlock(lockIndex)
return err
}
notificationsInfo, err := communications.PrepareObjectStatusNotification(*metaData, common.Consumed)
common.ObjectLocks.Unlock(lockIndex)
if err != nil {
return err
}
return communications.SendNotifications(notificationsInfo)
} else {
common.ObjectLocks.Unlock(lockIndex)
}
return nil
}
// ObjectPolicyReceived is called when an application wants to mark an object as having received its
// destination policy
func ObjectPolicyReceived(orgID string, objectType string, objectID string) common.SyncServiceError {
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In ObjectPolicyReceived. Received %s %s\n", objectType, objectID)
}
common.HealthStatus.ClientRequestReceived()
lockIndex := common.HashStrings(orgID, objectType, objectID)
apiObjectLocks.Lock(lockIndex)
defer apiObjectLocks.Unlock(lockIndex)
common.ObjectLocks.Lock(lockIndex)
err := store.MarkDestinationPolicyReceived(orgID, objectType, objectID)
common.ObjectLocks.Unlock(lockIndex)
return err
}
// ObjectReceived is called when an app indicates that it received the object
// Call the storage module to mark the object as received
func ObjectReceived(orgID string, objectType string, objectID string) common.SyncServiceError {
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In ObjectReceived. Received %s %s\n", objectType, objectID)
}
common.HealthStatus.ClientRequestReceived()
lockIndex := common.HashStrings(orgID, objectType, objectID)
apiObjectLocks.Lock(lockIndex)
defer apiObjectLocks.Unlock(lockIndex)
common.ObjectLocks.Lock(lockIndex)
status, err := store.RetrieveObjectStatus(orgID, objectType, objectID)
if err != nil {
if log.IsLogging(logger.ERROR) {
log.Error("Failed to find object %s to mark as received. Error: %s", orgID+":"+objectType+":"+objectID, err.Error())
}
common.ObjectLocks.Unlock(lockIndex)
return err
}
if status == "" {
if log.IsLogging(logger.ERROR) {
log.Error("Failed to find object %s to mark as received.", orgID+":"+objectType+":"+objectID)
}
common.ObjectLocks.Unlock(lockIndex)
return &common.InvalidRequest{Message: "Failed to find object to mark as received"}
}
if status != common.CompletelyReceived && status != common.ObjReceived {
message := fmt.Sprintf("Invalid attempt to mark object in status %s as received\n", status)
if log.IsLogging(logger.ERROR) {
log.Error(message)
}
common.ObjectLocks.Unlock(lockIndex)
return &common.InvalidRequest{Message: message}
}
var c int
if c, err = store.DecrementAndReturnRemainingReceivers(orgID, objectType, objectID); err != nil {
if log.IsLogging(logger.ERROR) {
log.Error("Error in objectReceived: failed to decrement receivers count. Error: %s\n", err)
}
} else if c == 0 {
err = store.UpdateObjectStatus(orgID, objectType, objectID, common.ObjReceived)
}
common.ObjectLocks.Unlock(lockIndex)
return err
}
// ObjectDeleted is called when an app indicates that 1) it deleted the object, or 2) service acknowlege service reference change
// For 1):
// Send "deleted" notification to the object's origin
// Call the storage module to delete the object if deleted by all the consumers
// For 2):
// service will be removed from ESS lastDestinationPolicyServices array
func ObjectDeleted(userID string, orgID string, objectType string, objectID string) common.SyncServiceError {
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In ObjectDeleted. Deleted %s %s\n", objectType, objectID)
}
common.HealthStatus.ClientRequestReceived()
lockIndex := common.HashStrings(orgID, objectType, objectID)
apiObjectLocks.Lock(lockIndex)
defer apiObjectLocks.Unlock(lockIndex)
common.ObjectLocks.Lock(lockIndex)
if trace.IsLogging(logger.DEBUG) {
trace.Debug("Retrieve object and status for %s %s\n", objectType, objectID)
}
metaData, status, err := store.RetrieveObjectAndStatus(orgID, objectType, objectID)
if err != nil {
if log.IsLogging(logger.ERROR) {
log.Error("Failed to find object %s to confirm deletion. Error: %s", orgID+":"+objectType+":"+objectID, err.Error())
}
common.ObjectLocks.Unlock(lockIndex)
return err
}
if trace.IsLogging(logger.DEBUG) {
trace.Debug("Status of %s %s is: %s\n", objectType, objectID, status)
}
if status == "" {
if log.IsLogging(logger.ERROR) {
log.Error("Failed to find object %s to confirm deletion.", orgID+":"+objectType+":"+objectID)
}
common.ObjectLocks.Unlock(lockIndex)
return &common.InvalidRequest{Message: "Failed to find object to confirm deletion"}
}
if trace.IsLogging(logger.DEBUG) {
trace.Debug("metaData.Deleted of %s %s is: %t\n", objectType, objectID, metaData.Deleted)
}
if metaData.Deleted {
if status != common.ObjDeleted {
message := fmt.Sprintf("Invalid attempt to confirm deletion of object in status %s\n", status)
if log.IsLogging(logger.ERROR) {
log.Error(message)
}
common.ObjectLocks.Unlock(lockIndex)
return &common.InvalidRequest{Message: message}
}
if c, err := store.DecrementAndReturnRemainingConsumers(orgID, objectType, objectID); err != nil {
if log.IsLogging(logger.ERROR) {
log.Error("Error in objectDeleted: failed to decrement consumers count. Error: %s\n", err)
}
common.ObjectLocks.Unlock(lockIndex)
} else if c == 0 {
notificationsInfo, err := communications.PrepareObjectStatusNotification(*metaData, common.Deleted)
common.ObjectLocks.Unlock(lockIndex)
if err != nil {
return err
}
return communications.SendNotifications(notificationsInfo)
} else {
common.ObjectLocks.Unlock(lockIndex)
}
} else {
if trace.IsLogging(logger.DEBUG) {
trace.Debug("metaData.Deleted of %s %s is: %t, get lastRemovedPolicyServices\n", objectType, objectID, metaData.Deleted)
}
_, lastRemovedPolicyServices, err := store.RetrieveObjectAndRemovedDestinationPolicyServices(orgID, objectType, objectID)
if err != nil {
if log.IsLogging(logger.ERROR) {
log.Error("Failed to find lastDestinationPolicyServices for object %s to confirm service reference change. Error: %s", orgID+":"+objectType+":"+objectID, err.Error())
}
common.ObjectLocks.Unlock(lockIndex)
return err
}
if len(lastRemovedPolicyServices) == 0 {
message := fmt.Sprintln("Invalid attempt to confirm deletion of object with empty lastRemovedPolicyServices list")
if log.IsLogging(logger.ERROR) {
log.Error(message)
}
common.ObjectLocks.Unlock(lockIndex)
return &common.InvalidRequest{Message: message}
}
// only for debugging:
if trace.IsLogging(logger.DEBUG) {
trace.Debug("length of lastRemovedPolicyServices: %d\n", len(lastRemovedPolicyServices))
trace.Debug("Get lastRemovedPolicyServices: \n")
for _, s := range lastRemovedPolicyServices {
trace.Debug("%s/%s/%s \n", s.OrgID, s.Version, s.ServiceName)
}
trace.Debug("Remove serviceID: %s from ESS lastRemovedPolicyServices\n", userID)
trace.Debug("lastRemovedPolicyServices length before removal: %d\n", len(lastRemovedPolicyServices))
}
updatedLastRemovePolicyServices, removed := common.RemoveServiceFromServiceList(userID, lastRemovedPolicyServices)
if !removed {
message := fmt.Sprintln("Invalid attempt to confirm deletion of object for service not in lastRemovedPolicyServices")
if log.IsLogging(logger.ERROR) {
log.Error(message)
}
common.ObjectLocks.Unlock(lockIndex)
return &common.InvalidRequest{Message: message}
}
if trace.IsLogging(logger.DEBUG) {
trace.Debug("lastRemovedPolicyServices length after removal: %d\n", len(updatedLastRemovePolicyServices))
}
if err = store.UpdateRemovedDestinationPolicyServices(orgID, objectType, objectID, updatedLastRemovePolicyServices); err != nil {
if log.IsLogging(logger.ERROR) {
log.Error("Failed to update lastDestinationPolicyServices for object %s to confirm service reference change. Error: %s", orgID+":"+objectType+":"+objectID, err.Error())
}
common.ObjectLocks.Unlock(lockIndex)
return err
}
// only for debugging:
if trace.IsLogging(logger.DEBUG) {
_, lastRemovedPolicyServices, err = store.RetrieveObjectAndRemovedDestinationPolicyServices(orgID, objectType, objectID)
trace.Debug("Get lastRemovedPolicyServices again: \n")
if err != nil {
trace.Debug("RetrieveObjectAndRemovedDestinationPolicyServices err: %s\n", err)
common.ObjectLocks.Unlock(lockIndex)
}
for _, s := range lastRemovedPolicyServices {
trace.Debug("%s/%s/%s \n", s.OrgID, s.Version, s.ServiceName)
}
}
// keep this line
common.ObjectLocks.Unlock(lockIndex)
}
return nil
}
// DeleteObject deletes an object from storage
// Call the storage module to delete the object and return the response
func DeleteObject(orgID string, objectType string, objectID string) common.SyncServiceError {
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In DeleteObject. Delete %s %s\n", objectType, objectID)
}
common.HealthStatus.ClientRequestReceived()
lockIndex := common.HashStrings(orgID, objectType, objectID)
apiObjectLocks.Lock(lockIndex)
defer apiObjectLocks.Unlock(lockIndex)
common.ObjectLocks.Lock(lockIndex)
metaData, status, err := store.RetrieveObjectAndStatus(orgID, objectType, objectID)
if err != nil {
common.ObjectLocks.Unlock(lockIndex)
return err
}
if metaData == nil {
common.ObjectLocks.Unlock(lockIndex)
return &common.InvalidRequest{Message: "Object not found"}
}
if status != common.NotReadyToSend && status != common.ReadyToSend {
// This node is not the originator of the object being deleted.
// ESS is not allowed to remove such objects
if common.Configuration.NodeType == common.ESS {
common.ObjectLocks.Unlock(lockIndex)
return &common.InvalidRequest{Message: "Can't delete object on the receiving side for ESS"}
}
// CSS removes them without notifying the other side
err = storage.DeleteStoredObject(store, *metaData)
common.ObjectLocks.Unlock(lockIndex)
return err
}
if err := storage.DeleteStoredData(store, *metaData); err != nil {
common.ObjectLocks.Unlock(lockIndex)
return err
}
if err := store.MarkObjectDeleted(orgID, objectType, objectID); err != nil {
common.ObjectLocks.Unlock(lockIndex)
return err
}
// Notify the receivers of the object that it was deleted
notificationsInfo, err := communications.PrepareDeleteNotifications(*metaData)
common.ObjectLocks.Unlock(lockIndex)
if err != nil {
return err
}
return communications.SendNotifications(notificationsInfo)
}
// ActivateObject activates an inactive object
// Call the storage module to activate the object and return the response
func ActivateObject(orgID string, objectType string, objectID string) common.SyncServiceError {
if trace.IsLogging(logger.DEBUG) {
trace.Debug("In ActivateObject. Activate %s %s\n", objectType, objectID)
}
common.HealthStatus.ClientRequestReceived()
lockIndex := common.HashStrings(orgID, objectType, objectID)
apiObjectLocks.Lock(lockIndex)
defer apiObjectLocks.Unlock(lockIndex)
common.ObjectLocks.Lock(lockIndex)
metaData, status, err := store.RetrieveObjectAndStatus(orgID, objectType, objectID)
if err != nil {
common.ObjectLocks.Unlock(lockIndex)
return err
}
if metaData == nil {
common.ObjectLocks.Unlock(lockIndex)
return &common.InvalidRequest{Message: "Object not found"}
}
if status != common.NotReadyToSend && status != common.ReadyToSend {
common.ObjectLocks.Unlock(lockIndex)
return &common.InvalidRequest{Message: "Can't activate object on the receiving side"}
}
if err := store.ActivateObject(orgID, objectType, objectID); err != nil {
common.ObjectLocks.Unlock(lockIndex)
return err
}
if status == common.ReadyToSend {
notificationsInfo, err := communications.PrepareObjectNotifications(*metaData)
common.ObjectLocks.Unlock(lockIndex)
if err != nil {
return err