chore: experiments with proto

Reviewed-on: #8

app.json

@@ -6,7 +6,7 @@
     "appType": "app",
     "version": {
       "code": 1,
-      "name": "1.1.3"
+      "name": "1.2.2"
     },
     "icon": "icon.png",
     "vender": "zepp",

package.json

@@ -1,6 +1,6 @@
 {
   "name": "totpfit",
-  "version": "1.1.3",
+  "version": "1.2.2",
   "description": "Another 2FAuthenticator based on TOTP for Zepp Amazfit GTS 4",
   "main": "app.js",
   "author": "Lisoveliy",

page/index.js

@@ -23,10 +23,15 @@ Page(
                 })
                 .catch((x) => {
                     console.log(`Init failed: ${x}`);
-                    let localStorage = new LocalStorage();
-                    app._options.globalData.TOTPS = JSON.parse(
-                        localStorage.getItem("TOTPs", null) ?? []
-                    );
+                    try{
+                        let localStorage = new LocalStorage();
+                        app._options.globalData.TOTPS = JSON.parse(
+                        localStorage.getItem("TOTPs", [])
+                        );
+                    }
+                    catch{
+                        app._options.globalData.TOTPS = [];
+                    }
                     this.initPage();
                 });
         },

setting/utils/queryParser.js

@@ -6,9 +6,9 @@ const otpauthScheme = "otpauth:/";
 const googleMigrationScheme = "otpauth-migration:/";
 
 export function getTOTPByLink(link) {
-	if(link.includes(otpauthScheme))
+	if (link.includes(otpauthScheme))
 		return getByOtpauthScheme(link)
-	if(link.includes(googleMigrationScheme))
+	if (link.includes(googleMigrationScheme))
 		return getByGoogleMigrationScheme(link)
 
 	return null;
@@ -21,7 +21,7 @@ function getHashType(algorithm) {
 	else return "SHA-1";
 }
 
-function getByOtpauthScheme(link){
+function getByOtpauthScheme(link) {
 	try {
 		let args = link.split("/", otpauthScheme.length);
 		let type = args[2]; //Returns 'hotp' or 'totp'
@@ -33,15 +33,16 @@ function getByOtpauthScheme(link){
 		let period = args[3].split("period=")[1]?.split("&")[0]; //Returns period
 		let digits = args[3].split("digits=")[1]?.split("&")[0]; //Returns digits
 		let algorithm = args[3].split("algorithm=")[1]?.split("&")[0]; //Returns algorithm
+		let offset = args[3].split("offset=")[1]?.split("&")[0] ?? 0; //Returns offset
 
 		if (type.toLowerCase() != "totp")
 			throw new Error("Type is not valid, requires 'TOTP'");
 
 		if (secret === undefined) throw new Error("Secret not defined");
 
-        if(issuer == client){
-            issuer = args[3].split("issuer=")[1]?.split("&")[0];
-        }
+		if (issuer == client) {
+			issuer = args[3].split("issuer=")[1]?.split("&")[0];
+		}
 
 		issuer = decodeURIComponent(issuer);
 		client = decodeURIComponent(client);
@@ -52,62 +53,83 @@ function getByOtpauthScheme(link){
 			client,
 			digits,
 			period,
-			0,
+			Number(offset),
 			getHashType(algorithm)
 		);
 	} catch (err) {
-        console.log(err)
+		console.log(err)
 		return null;
 	}
 }
 
-function getByGoogleMigrationScheme(link){
+function getByGoogleMigrationScheme(link) {
 
-    let data = link.split("data=")[1]; //Returns base64 encoded data
-    data = decodeURIComponent(data);
-    let decode = base64decode(data);
-    let proto = decodeProto(decode);
+	let data = link.split("data=")[1]; //Returns base64 encoded data
+	data = decodeURIComponent(data);
+	let decode = base64decode(data);
+	let proto = decodeProto(decode);
 
-    let protoTotps = [];
+	let totps = [];
 
-    proto.parts.forEach(part => {
-        if(part.type == TYPES.LENDELIM){
-            protoTotps.push(decodeProto(part.value));
-        }
-    });
+	totps.push(new TOTP(
+		"",
+		data,
+		decode,
+		6,
+		30,
+		0,
+		"SHA-1"
+	));
 
-    let totps = [];
-    protoTotps.forEach(x => {
-        let type = x.parts.filter(x => x.index == 6)[0]; //find type of OTP
-        if(type.value !== '2'){
-            console.log("ERR: it's a not TOTP record")
-            return;
-        }
-        let secret = x.parts.filter(x => x.index == 1)[0].value;
-        secret = encode(secret);
+	totps.push(new TOTP(
+		"",
+		proto.leftOver,
+		proto.parts.length,
+		6,
+		30,
+		0,
+		"SHA-1"
+	));
 
-        let name = bytesToString(x.parts.filter(x => x.index == 2)[0].value);
-        let issuer = bytesToString(x.parts.filter(x => x.index == 3)[0].value);
+	let protoTotps = [];
 
-        totps.push(new TOTP(
+	proto.parts.forEach(part => {
+		if (part.type == TYPES.LENDELIM) {
+			protoTotps.push(decodeProto(part.value));
+		}
+	});
+
+	protoTotps.forEach(x => {
+		let type = x.parts.filter(x => x.index == 6)[0]; //find type of OTP
+		if (type.value !== '2') {
+			console.log("ERR: it's a not TOTP record")
+			return;
+		}
+		let secret = x.parts.filter(x => x.index == 1)[0].value;
+		secret = encode(secret);
+
+		let name = bytesToString(x.parts.filter(x => x.index == 2)[0].value);
+		let issuer = bytesToString(x.parts.filter(x => x.index == 3)[0].value);
+
+		totps.push(new TOTP(
 			secret,
 			issuer,
 			name,
 			6,
 			30,
 			0,
-            "SHA-1"
+			"SHA-1"
 		));
-    });
+	});
 
-    return totps;
+	return totps;
 
 }
 
 function bytesToString(bytes) {
-    let str = '';
-    for (let i = 0; i < bytes.length; i++) {
-        str += String.fromCharCode(bytes[i]);
-    }
-    return str;
+	let str = '';
+	for (let i = 0; i < bytes.length; i++) {
+		str += String.fromCharCode(bytes[i]);
+	}
+	return str;
 }