Unable to import users to Firebase Auth

[Bernhard Waidacher]

Hi! 

I'm trying to import users from an older project which uses IdentityServer4 to manage authentification. I've tried simple examples to import user, but none would work. (I'm not even at a stage where I could import old users).

I've tried the following: 

it("should import user correctly", async () => {
const salt = crypto.randomBytes(16);
const rounds = 10000;
const passwordStr = "Test123();";
const email = "tes...@test.com";

const password = crypto.pbkdf2Sync(Buffer.from(passwordStr, "utf-8"), salt, rounds, 32, "sha256");
const importResult = await getAuth().importUsers(
[{ email, passwordHash: password, passwordSalt: salt, uid: "123456" }],
{
hash: { algorithm: "PBKDF2_SHA256", rounds },
},
);
expect(importResult.successCount).toBe(1);

const body = { email, password: passwordStr };
const response = await fetch(
"http://localhost:9099/identitytoolkit.googleapis.com/v1/accounts:signInWithPassword?key=asdf",
{
method: "post",
body: JSON.stringify(body),
headers: { "Content-Type": "application/json" },
},
);
expect(response.status).toBe(200);
});

it("should import user correctly 2", async () => {
const salt = crypto.randomBytes(16);
const rounds = 10;
const passwordStr = "Test123();";
const email = "tes...@test.com";

const password = bcrypt.hashSync(passwordStr, rounds);
const importResult = await getAuth().importUsers([{ email, passwordHash: Buffer.from(password), uid: "123456" }], {
hash: { algorithm: "BCRYPT" },
});
expect(importResult.successCount).toBe(1);

const body = { email, password: passwordStr };
const response = await axios({
url: "http://127.0.0.1:9099/identitytoolkit.googleapis.com/v1/accounts:signInWithPassword",
params: { key: "asdf" },
data: body,
method: "post",
validateStatus: () => true,
});

console.log(response.data);
expect(response.status).toBe(200);
});

I would need to use PBKDF2_SHA256 but since that was not working I've tried bcrypt but that's not working either. I was trying to import it in the emulator and also tried a real project - nothing works. 

I've also tried to import users using the cli (I found that code on Stackoverflow, but it looks finde?)

{
"users": [
{
"localId": "166666",
"email": "166...@qq.com",
"emailVerified": false,
"passwordHash": "5NL5SaQBwE6c0L1BDjHW+BtBOXQVH8RYwY0tGGw3khk=",
"createdAt": "1613525311156",
"lastSignedInAt": "1613525311156",
"salt": "c2FsdA==",
"providerUserInfo": []
}
]
}

using firebase auth:import test.json --rounds=1 --hash-algo=SHA256 --hash-input-order=PASSWORD_FIRST

I can always see the users in the dashboard, but when trying to sign in, with either a post request or Firebase Swift, it always would return an error stating the password is incorrect