build email

.idea/.gitignore

@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/email.iml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="Go" enabled="true" />
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/email.iml" filepath="$PROJECT_DIR$/.idea/email.iml" />
+    </modules>
+  </component>
+</project>

.idea/vcs.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

client.go

@@ -0,0 +1,44 @@
+package email
+
+import (
+	"errors"
+	"fmt"
+	"git.selly.red/Selly-Modules/natsio"
+)
+
+var (
+	c      *Client
+	server natsio.Server
+	js     natsio.JetStream
+)
+
+// GetClient ...
+func GetClient() *Client {
+	return c
+}
+
+// Config ...
+type Config struct {
+	Nats natsio.Config
+}
+
+// Client ...
+type Client struct {
+	Config Config
+}
+
+// NewClient ...
+func NewClient(cfg Config) (*Client, error) {
+	if cfg.Nats.URL == "" {
+		return nil, errors.New("nats url is required")
+	}
+	if err := natsio.Connect(cfg.Nats); err != nil {
+		return nil, fmt.Errorf("nats connect failed: %v", err)
+	}
+
+	c = &Client{
+		Config: cfg,
+	}
+
+	return c, nil
+}

go.mod

@@ -0,0 +1,15 @@
+module git.selly.red/Selly-Modules/email
+
+go 1.18
+
+require git.selly.red/Selly-Modules/natsio v1.0.2
+
+require (
+	github.com/nats-io/nats.go v1.13.0 // indirect
+	github.com/nats-io/nkeys v0.3.0 // indirect
+	github.com/nats-io/nuid v1.0.1 // indirect
+	github.com/thoas/go-funk v0.9.1 // indirect
+	golang.org/x/crypto v0.0.0-20220622213112-05595931fe9d // indirect
+	golang.org/x/sys v0.0.0-20220319134239-a9b59b0215f8 // indirect
+	golang.org/x/time v0.0.0-20220224211638-0e9765cccd65 // indirect
+)

go.sum

@@ -0,0 +1,103 @@
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model/supplier_request.go

@@ -0,0 +1,11 @@
+package model
+
+type CreateSupplierUserEncrypt struct {
+	EncryptData string `json:"encryptData"`
+}
+
+type CreateSupplierUserRequest struct {
+	Account  string `json:"account"`
+	Email    string `json:"email"`
+	Password string `json:"password"`
+}

model/supplier_response.go

@@ -0,0 +1,5 @@
+package model
+
+type CreateSupplierUserResponse struct {
+	RequestID string `json:"requestId"`
+}

supplier/supplier.go

@@ -0,0 +1,32 @@
+package supplier
+
+import (
+	"encoding/json"
+	"errors"
+	"git.selly.red/Selly-Modules/email/model"
+	"git.selly.red/Selly-Modules/email/utils"
+	"git.selly.red/Selly-Modules/natsio"
+)
+
+const (
+	SubjectCreateSupplierUser = "create_supplier_user"
+)
+
+func CreateSupplierUser(payload model.CreateSupplierUserEncrypt) (requestID string, err error) {
+	msg, err := natsio.GetServer().Request(SubjectCreateSupplierUser, utils.ToBytes(payload))
+	if err != nil {
+		return "", err
+	}
+	var res struct {
+		Data  model.CreateSupplierUserResponse `json:"data"`
+		Error string                           `json:"error"`
+	}
+
+	if err = json.Unmarshal(msg.Data, &res); err != nil {
+		return "", err
+	}
+	if res.Error != "" {
+		return "", errors.New(res.Error)
+	}
+	return res.Data.RequestID, nil
+}

utils/bytes.go

@@ -0,0 +1,8 @@
+package utils
+
+import "encoding/json"
+
+func ToBytes(data interface{}) []byte {
+	b, _ := json.Marshal(data)
+	return b
+}

utils/passphrase.go

@@ -0,0 +1,59 @@
+package utils
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/hmac"
+	"crypto/md5"
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/base64"
+	"encoding/hex"
+	"io"
+)
+
+func GeneratePassphrase(key string) string {
+	hash := md5.New()
+	hash.Write([]byte(key))
+	return hex.EncodeToString(hash.Sum(nil))
+}
+
+func HashWithPassphrase(data []byte, key string) string {
+	h := hmac.New(sha256.New, []byte(key))
+	h.Write([]byte(data))
+	return hex.EncodeToString(h.Sum(nil))
+}
+
+func ASCEncrypt(data []byte, passphrase string) (string, error) {
+	block, _ := aes.NewCipher([]byte(GeneratePassphrase(passphrase)))
+	gcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return "", err
+	}
+	nonce := make([]byte, gcm.NonceSize())
+	if _, err = io.ReadFull(rand.Reader, nonce); err != nil {
+		return "", err
+	}
+	ciphertext := gcm.Seal(nonce, nonce, data, nil)
+	return base64.StdEncoding.EncodeToString(ciphertext), nil
+}
+
+func ASCDecrypt(msg, passphrase string) (string, error) {
+	data, err := base64.StdEncoding.DecodeString(msg)
+	key := []byte(GeneratePassphrase(passphrase))
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return "", err
+	}
+	gcm, err := cipher.NewGCM(block)
+	if err != nil {
+		return "", err
+	}
+	nonceSize := gcm.NonceSize()
+	nonce, ciphertext := data[:nonceSize], data[nonceSize:]
+	plaintext, err := gcm.Open(nil, nonce, ciphertext, nil)
+	if err != nil {
+		return "", err
+	}
+	return string(plaintext), nil
+}