Forbid to add the same account twice

CHANGELOG.md

@@ -26,6 +26,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## Fixed
 - Invalid preferences are now automatically corrected
+- It is now impossible to add the same account twice
 
 
 ## [0.3.0] - 2023-08-25

src/locales/en.json

@@ -35,6 +35,7 @@
 		"addAccount": "Add account",
 		"cancel": "@:invariants.controls.cancel",
 		"error": {
+			"accountAlreadyExists": "You already have an account on this domain that uses this local part.",
 			"invalidBase64": "The key must be a valid base64 string.",
 			"invalidKeyLength": "The key's length must be either 128 bits (16 bytes) or 256 bits (32 bytes).",
 			"invalidSeparator": "The separator must be a single character.",

src/locales/fr.json

@@ -35,6 +35,7 @@
 		"addAccount": "Ajouter",
 		"cancel": "@:invariants.controls.cancel",
 		"error": {
+			"accountAlreadyExists": "Vous avez déjà un compte sur ce nom de domaine qui utilise cette partie locale.",
 			"invalidBase64": "La clé doit être une chaîne de caractère en base64.",
 			"invalidKeyLength": "La longueur de la clé doit être de 128 bits (16 bytes) ou de 256 bits (32 bytes).",
 			"invalidSeparator": "Le séparateur doit être un unique caractère.",

src/views/AddAccountView.vue

@@ -51,11 +51,24 @@ const addAccount = () => {
 		resetErrorMessage();
 		var hasError = false;
 		var key = null;
+		var accountId = null;
 		if (separator.value.length != 1) {
 			hasError = setErrorMessage('addAccount.error.invalidSeparator', separatorErrorMessageId);
 		}
-		if (localPart.value.includes(separator.value)) {
+		try {
-			hasError = setErrorMessage('addAccount.error.localPartSeparator', localPartErrorMessageId);
+			if (localPart.value.includes(separator.value)) {
+				throw new Error('addAccount.error.localPartSeparator');
+			}
+			accountId = `${localPart.value}@${domainName.value}`;
+			for (const acc of accounts.value) {
+				const comp = `${acc.localPart}@${acc.domain}`;
+				if (accountId == comp) {
+					throw new Error('addAccount.error.accountAlreadyExists');
+				}
+			}
+		} catch (e) {
+			console.log(e);
+			hasError = setErrorMessage(e.message, localPartErrorMessageId);
 		}
 		try {
 			key = base64Decode(privateKey.value);
@@ -65,8 +78,8 @@ const addAccount = () => {
 		} catch (e) {
 			hasError = setErrorMessage(e.message, addrKeyErrorMessageId);
 		}
-		if (!hasError) {
+		if (!hasError && key && accountId) {
-			const hash = sha256(`${localPart.value}@${domainName.value}`);
+			const hash = sha256(accountId);
 			const newAccount = {
 				id: base32Encode(hash, 'RFC4648', { padding: false }).toLowerCase(),
 				localPart: localPart.value,