forked from lukasjarosch/genki
/
metadata.go
129 lines (112 loc) · 3.54 KB
/
metadata.go
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package interceptor
import (
b64 "encoding/base64"
"github.com/marcoEgger/genki/broker"
"github.com/marcoEgger/genki/metadata"
)
func SubscriberMetadataInterceptor(next broker.Handler) broker.Handler {
return func(event broker.Event) {
meta := metadata.Metadata{}
ensureRequestId(&meta, event)
findM2M(&meta, event)
findAccountIDs(&meta, event)
findAccountID(&meta, event)
findUserID(&meta, event)
findEmail(&meta, event)
findFirstName(&meta, event)
findLastName(&meta, event)
findType(&meta, event)
findSubType(&meta, event)
findRoles(&meta, event)
findInternal(&meta, event)
ctx := metadata.NewContext(event.Message().Context, meta)
event.SetContext(ctx)
next(event)
}
}
func ensureRequestId(meta *metadata.Metadata, event broker.Event) {
requestID := metadata.GetFromContext(event.Message().Context, metadata.RequestIDKey)
if requestID == "" {
(*meta)[metadata.RequestIDKey] = metadata.NewRequestID()
return
}
(*meta)[metadata.RequestIDKey] = requestID
}
func findM2M(meta *metadata.Metadata, event broker.Event) {
m2m := metadata.GetFromContext(event.Message().Context, metadata.M2MKey)
if m2m != "" {
(*meta)[metadata.M2MKey] = m2m
}
}
func findAccountIDs(meta *metadata.Metadata, event broker.Event) {
accountIds := metadata.GetFromContext(event.Message().Context, metadata.AccountIDsKey)
if accountIds != "" {
(*meta)[metadata.AccountIDsKey] = accountIds
}
}
func findAccountID(meta *metadata.Metadata, event broker.Event) {
accID := metadata.GetFromContext(event.Message().Context, metadata.AccountIDKey)
if accID != "" {
(*meta)[metadata.AccountIDKey] = accID
}
}
func findUserID(meta *metadata.Metadata, event broker.Event) {
userID := metadata.GetFromContext(event.Message().Context, metadata.UserIDKey)
if userID != "" {
(*meta)[metadata.UserIDKey] = userID
}
}
func findEmail(meta *metadata.Metadata, event broker.Event) {
email := metadata.GetFromContext(event.Message().Context, metadata.EmailKey)
if email != "" {
decoded, err := b64.StdEncoding.DecodeString(email)
if err != nil {
return
}
(*meta)[metadata.EmailKey] = string(decoded)
}
}
func findFirstName(meta *metadata.Metadata, event broker.Event) {
firstName := metadata.GetFromContext(event.Message().Context, metadata.FirstNameKey)
if firstName != "" {
decoded, err := b64.StdEncoding.DecodeString(firstName)
if err != nil {
return
}
(*meta)[metadata.FirstNameKey] = string(decoded)
}
}
func findLastName(meta *metadata.Metadata, event broker.Event) {
lastName := metadata.GetFromContext(event.Message().Context, metadata.LastNameKey)
if lastName != "" {
decoded, err := b64.StdEncoding.DecodeString(lastName)
if err != nil {
return
}
(*meta)[metadata.LastNameKey] = string(decoded)
}
}
func findType(meta *metadata.Metadata, event broker.Event) {
typeValue := metadata.GetFromContext(event.Message().Context, metadata.TypeKey)
if typeValue != "" {
(*meta)[metadata.TypeKey] = typeValue
}
}
func findSubType(meta *metadata.Metadata, event broker.Event) {
subType := metadata.GetFromContext(event.Message().Context, metadata.SubTypeKey)
if subType != "" {
(*meta)[metadata.SubTypeKey] = subType
}
}
func findRoles(meta *metadata.Metadata, event broker.Event) {
roles := metadata.GetFromContext(event.Message().Context, metadata.RolesKey)
if roles != "" {
(*meta)[metadata.RolesKey] = roles
}
}
func findInternal(meta *metadata.Metadata, event broker.Event) {
internal := metadata.GetFromContext(event.Message().Context, metadata.InternalKey)
if internal != "" {
(*meta)[metadata.InternalKey] = internal
}
}