Encrypted messaging app
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6.7 KiB

package Seeder
import (
"encoding/base64"
"git.tovijaeschke.xyz/tovi/Envelope/Backend/Database"
"git.tovijaeschke.xyz/tovi/Envelope/Backend/Models"
"github.com/gofrs/uuid"
)
func seedMessage(
primaryUser, secondaryUser Models.User,
primaryUserAssociationKey, secondaryUserAssociationKey string,
i int,
) error {
var (
message Models.Message
messageData Models.MessageData
key, userKey aesKey
keyCiphertext []byte
plaintext string
dataCiphertext []byte
senderIdCiphertext []byte
err error
)
plaintext = "Test Message"
userKey, err = generateAesKey()
if err != nil {
panic(err)
}
key, err = generateAesKey()
if err != nil {
panic(err)
}
dataCiphertext, err = key.aesEncrypt([]byte(plaintext))
if err != nil {
panic(err)
}
senderIdCiphertext, err = key.aesEncrypt([]byte(primaryUser.ID.String()))
if err != nil {
panic(err)
}
if i%2 == 0 {
senderIdCiphertext, err = key.aesEncrypt([]byte(secondaryUser.ID.String()))
if err != nil {
panic(err)
}
}
keyCiphertext, err = userKey.aesEncrypt(
[]byte(base64.StdEncoding.EncodeToString(key.Key)),
)
if err != nil {
panic(err)
}
messageData = Models.MessageData{
Data: base64.StdEncoding.EncodeToString(dataCiphertext),
SenderID: base64.StdEncoding.EncodeToString(senderIdCiphertext),
SymmetricKey: base64.StdEncoding.EncodeToString(keyCiphertext),
}
message = Models.Message{
MessageData: messageData,
SymmetricKey: base64.StdEncoding.EncodeToString(
encryptWithPublicKey(userKey.Key, decodedPublicKey),
),
AssociationKey: primaryUserAssociationKey,
}
err = Database.CreateMessage(&message)
if err != nil {
return err
}
message = Models.Message{
MessageData: messageData,
SymmetricKey: base64.StdEncoding.EncodeToString(
encryptWithPublicKey(userKey.Key, decodedPublicKey),
),
AssociationKey: secondaryUserAssociationKey,
}
return Database.CreateMessage(&message)
}
func seedConversationDetail(key aesKey) (Models.ConversationDetail, error) {
var (
messageThread Models.ConversationDetail
name string
nameCiphertext []byte
err error
)
name = "Test Conversation"
nameCiphertext, err = key.aesEncrypt([]byte(name))
if err != nil {
panic(err)
}
messageThread = Models.ConversationDetail{
Name: base64.StdEncoding.EncodeToString(nameCiphertext),
}
err = Database.CreateConversationDetail(&messageThread)
return messageThread, err
}
func seedUserConversation(
user Models.User,
threadID uuid.UUID,
key aesKey,
) (Models.UserConversation, error) {
var (
messageThreadUser Models.UserConversation
conversationDetailIDCiphertext []byte
adminCiphertext []byte
err error
)
conversationDetailIDCiphertext, err = key.aesEncrypt([]byte(threadID.String()))
if err != nil {
return messageThreadUser, err
}
adminCiphertext, err = key.aesEncrypt([]byte("true"))
if err != nil {
return messageThreadUser, err
}
messageThreadUser = Models.UserConversation{
UserID: user.ID,
ConversationDetailID: base64.StdEncoding.EncodeToString(conversationDetailIDCiphertext),
Admin: base64.StdEncoding.EncodeToString(adminCiphertext),
SymmetricKey: base64.StdEncoding.EncodeToString(
encryptWithPublicKey(key.Key, decodedPublicKey),
),
}
err = Database.CreateUserConversation(&messageThreadUser)
return messageThreadUser, err
}
func seedConversationDetailUser(
user Models.User,
conversationDetail Models.ConversationDetail,
associationKey uuid.UUID,
admin bool,
key aesKey,
) (Models.ConversationDetailUser, error) {
var (
conversationDetailUser Models.ConversationDetailUser
adminString string = "false"
userIdCiphertext []byte
usernameCiphertext []byte
adminCiphertext []byte
associationKeyCiphertext []byte
publicKeyCiphertext []byte
err error
)
if admin {
adminString = "true"
}
userIdCiphertext, err = key.aesEncrypt([]byte(user.ID.String()))
if err != nil {
return conversationDetailUser, err
}
usernameCiphertext, err = key.aesEncrypt([]byte(user.Username))
if err != nil {
return conversationDetailUser, err
}
adminCiphertext, err = key.aesEncrypt([]byte(adminString))
if err != nil {
return conversationDetailUser, err
}
associationKeyCiphertext, err = key.aesEncrypt([]byte(associationKey.String()))
if err != nil {
return conversationDetailUser, err
}
publicKeyCiphertext, err = key.aesEncrypt([]byte(user.AsymmetricPublicKey))
if err != nil {
return conversationDetailUser, err
}
conversationDetailUser = Models.ConversationDetailUser{
ConversationDetailID: conversationDetail.ID,
UserID: base64.StdEncoding.EncodeToString(userIdCiphertext),
Username: base64.StdEncoding.EncodeToString(usernameCiphertext),
Admin: base64.StdEncoding.EncodeToString(adminCiphertext),
AssociationKey: base64.StdEncoding.EncodeToString(associationKeyCiphertext),
PublicKey: base64.StdEncoding.EncodeToString(publicKeyCiphertext),
}
err = Database.CreateConversationDetailUser(&conversationDetailUser)
return conversationDetailUser, err
}
func SeedMessages() {
var (
conversationDetail Models.ConversationDetail
key aesKey
primaryUser Models.User
primaryUserAssociationKey uuid.UUID
secondaryUser Models.User
secondaryUserAssociationKey uuid.UUID
i int
err error
)
key, err = generateAesKey()
if err != nil {
panic(err)
}
conversationDetail, err = seedConversationDetail(key)
primaryUserAssociationKey, err = uuid.NewV4()
if err != nil {
panic(err)
}
secondaryUserAssociationKey, err = uuid.NewV4()
if err != nil {
panic(err)
}
primaryUser, err = Database.GetUserByUsername("testUser")
if err != nil {
panic(err)
}
_, err = seedUserConversation(
primaryUser,
conversationDetail.ID,
key,
)
if err != nil {
panic(err)
}
secondaryUser, err = Database.GetUserByUsername("ATestUser2")
if err != nil {
panic(err)
}
_, err = seedUserConversation(
secondaryUser,
conversationDetail.ID,
key,
)
if err != nil {
panic(err)
}
_, err = seedConversationDetailUser(
primaryUser,
conversationDetail,
primaryUserAssociationKey,
true,
key,
)
if err != nil {
panic(err)
}
_, err = seedConversationDetailUser(
secondaryUser,
conversationDetail,
secondaryUserAssociationKey,
false,
key,
)
if err != nil {
panic(err)
}
for i = 0; i <= 20; i++ {
err = seedMessage(
primaryUser,
secondaryUser,
primaryUserAssociationKey.String(),
secondaryUserAssociationKey.String(),
i,
)
if err != nil {
panic(err)
}
}
}