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import { EMAIL_REGEX } from "shared/constants/validation";
import { KompassiLoginError, MongoDbError } from "shared/types/api/errors";
import {
PostKompassiLoginResponse,
PostUpdateUserEmailAddressResponse,
PostVerifyKompassiLoginResponse,
} from "shared/types/api/login";
import { UserGroup } from "shared/types/models/user";
import {
Result,
makeErrorResult,
makeSuccessResult,
} from "shared/utils/result";
import {
KompassiTokens,
KompassiTokensSchema,
KompassiUserinfo,
KompassiUserinfoSchema,
} from "server/features/kompassi-login/KompassiLoginTypes";
import {
addKompassiIdSuffix,
deriveKonstiUsername,
redactTokenValues,
} from "server/features/kompassi-login/kompassiLoginUtils";
import {
findUser,
findUserByKompassiId,
saveUser,
updateUserEmailAddress,
updateUserKompassiLoginStatus,
} from "server/features/user/userRepository";
import { createSerial } from "server/features/user/userUtils";
import { getJWT } from "server/utils/jwt";
import { logger } from "server/utils/logger";
export const getBaseUrl = (): string => {
Iif (process.env.SETTINGS === "ci") {
return "http://server:5000";
}
const baseUrl = process.env.KOMPASSI_BASE_URL ?? "https://kompassi.eu";
// The e2e Kompassi mock is served by this same backend on the default port
// 5000. When PORT_OFFSET runs an instance on a shifted port, follow it so the
// instance hits its own mock instead of another instance's port 5000. Real
// Kompassi URLs (dev.kompassi.eu etc.) are left untouched
const portOffset = Number(process.env.PORT_OFFSET) || 0;
Iif (portOffset > 0 && baseUrl === "http://localhost:5000") {
return `http://localhost:${5000 + portOffset}`;
}
return baseUrl;
};
export const clientId = process.env.KOMPASSI_CLIENT_ID ?? "";
const clientSecret = process.env.KOMPASSI_CLIENT_SECRET ?? "";
const accessGroups = new Set(["users"]);
const getKompassiTokens = async (
code: string,
origin: string,
): Promise<Result<KompassiTokens, KompassiLoginError>> => {
const params = new URLSearchParams({
code,
grant_type: "authorization_code",
client_id: clientId,
client_secret: clientSecret,
redirect_uri: `${origin}${AuthEndpoint.KOMPASSI_LOGIN_CALLBACK}`,
});
const body = params.toString();
// The trailing slash matters - Django redirects a slash-less POST, which
// would downgrade it to a GET
const url = `${getBaseUrl()}/oidc/token/`;
const headers = {
accept: "application/json",
"content-type": "application/x-www-form-urlencoded",
};
try {
const response = await fetch(url, { method: "POST", headers, body });
const responseData = await response.json();
const result = KompassiTokensSchema.safeParse(responseData);
Iif (!result.success) {
logger.error(
new Error(
`Error validating getKompassiTokens response: status ${response.status}, body ${JSON.stringify(redactTokenValues(responseData))}`,
{ cause: result.error },
),
);
return makeErrorResult(KompassiLoginError.UNKNOWN_ERROR);
}
return makeSuccessResult(result.data);
} catch (error) {
logger.error(
new Error("Kompassi login: Error fetching token from Kompassi", {
cause: error,
}),
);
return makeErrorResult(KompassiLoginError.UNKNOWN_ERROR);
}
};
const getKompassiUserinfo = async (
accessToken: string,
): Promise<Result<KompassiUserinfo, KompassiLoginError>> => {
const url = `${getBaseUrl()}/oidc/userinfo/`;
const headers = { authorization: `Bearer ${accessToken}` };
try {
const response = await fetch(url, { headers });
const responseData = await response.json();
const result = KompassiUserinfoSchema.safeParse(responseData);
if (!result.success) {
// Don't log the body here - a partially valid response would contain PII
logger.error(
new Error(
`Error validating getKompassiUserinfo response: status ${response.status}`,
{ cause: result.error },
),
);
return makeErrorResult(KompassiLoginError.UNKNOWN_ERROR);
}
return makeSuccessResult(result.data);
} catch (error) {
logger.error(
new Error("Kompassi login: Error fetching userinfo from Kompassi", {
cause: error,
}),
);
return makeErrorResult(KompassiLoginError.UNKNOWN_ERROR);
}
};
export const doKompassiLogin = async (
code: string,
origin: string,
): Promise<PostKompassiLoginResponse> => {
const tokensResult = await getKompassiTokens(code, origin);
if (!tokensResult.ok) {
return {
message: "Error getting tokens from Kompassi",
status: "error",
errorId: "unknown",
};
}
const userinfoResult = await getKompassiUserinfo(
tokensResult.value.access_token,
);
if (!userinfoResult.ok) {
return {
message: "Error getting userinfo from Kompassi",
status: "error",
errorId: "unknown",
};
}
const userinfo = userinfoResult.value;
const groupNames = userinfo.groups.filter((groupName) =>
accessGroups.has(groupName),
);
if (groupNames.length === 0) {
return {
message: "User not member of any group that would grant access",
status: "error",
errorId: "invalidUserGroup",
};
}
const existingUserResult = await findUserByKompassiId(userinfo.sub);
Iif (!existingUserResult.ok) {
return {
message: "Error finding existing user",
status: "error",
errorId: "loginFailed",
};
}
const existingUser = existingUserResult.value;
if (existingUser) {
return {
message: "User login success",
status: "success",
username: existingUser.username,
userGroup: existingUser.userGroup,
serial: existingUser.serial,
groupCode: existingUser.groupCode,
isGroupCreator: existingUser.isGroupCreator,
jwt: getJWT(existingUser.userGroup, existingUser.username),
eventLogItems: existingUser.eventLogItems,
kompassiUsernameAccepted: existingUser.kompassiUsernameAccepted,
kompassiId: existingUser.kompassiId,
email: existingUser.email || "",
emailNotificationPermitAsked: existingUser.emailNotificationPermitAsked,
};
}
const serialDocResult = await createSerial();
Iif (!serialDocResult.ok) {
return {
message: "Error creating serial for new user",
status: "error",
errorId: "loginFailed",
};
}
const serial = serialDocResult.value[0].serial;
const derivedUsername = deriveKonstiUsername(userinfo);
// Check if username already taken
const findUserResult = await findUser(derivedUsername);
Iif (!findUserResult.ok) {
return {
errorId: "unknown",
message: "Finding user failed",
status: "error",
};
}
const userWithSameUsername = findUserResult.value;
const newUser = {
kompassiId: userinfo.sub,
serial,
// Kompassi accepts addresses that Konsti's stored-email format rejects,
// and that format is checked on read: keeping one would make the account
// unreadable, and so impossible to log into again. The finalize form asks
// every new Kompassi user for an address anyway
email: EMAIL_REGEX.test(userinfo.email) ? userinfo.email : "",
passwordHash: "",
userGroup: UserGroup.USER,
groupCode: "0",
};
// The username is only a starting point: the user confirms or replaces it
// before they can do anything else, so a collision just needs a suffix
// unique to this account.
const uniqueUsername = addKompassiIdSuffix(derivedUsername, userinfo.sub);
let saveUserResult = await saveUser({
...newUser,
username: userWithSameUsername ? uniqueUsername : derivedUsername,
});
// Nothing holds the name between the check above and the save, and two
// people whose Kompassi names quote the same nick now derive the same
// username - so the loser of that race retries with its own unique name.
// Only on a rejected unique index: saveUser stores the row before validating
// it, so retrying after any other error would create a second account
if (
!saveUserResult.ok &&
saveUserResult.error === MongoDbError.DUPLICATE_KEY &&
!userWithSameUsername
) {
saveUserResult = await saveUser({
...newUser,
username: uniqueUsername,
});
}
Iif (!saveUserResult.ok) {
return {
message: "Saving user failed",
status: "error",
errorId: "loginFailed",
};
}
const saveUserResponse = saveUserResult.value;
logger.info(`Kompassi login: Saved new user ${saveUserResponse.username}`);
return {
message: "User login success",
status: "success",
username: saveUserResponse.username,
userGroup: saveUserResponse.userGroup,
serial: saveUserResponse.serial,
groupCode: saveUserResponse.groupCode,
isGroupCreator: saveUserResponse.isGroupCreator,
jwt: getJWT(saveUserResponse.userGroup, saveUserResponse.username),
eventLogItems: saveUserResponse.eventLogItems,
kompassiUsernameAccepted: saveUserResponse.kompassiUsernameAccepted,
kompassiId: saveUserResponse.kompassiId,
email: saveUserResponse.email || "",
emailNotificationPermitAsked: saveUserResponse.emailNotificationPermitAsked,
};
};
export const verifyKompassiLogin = async (
oldUsername: string,
newUsername: string,
): Promise<PostVerifyKompassiLoginResponse> => {
if (oldUsername !== newUsername) {
// Check if username already taken
const findUserResult = await findUser(newUsername);
Iif (!findUserResult.ok) {
return {
errorId: "unknown",
message: "Finding user failed",
status: "error",
};
}
const existingUser = findUserResult.value;
if (existingUser) {
logger.info(
`Kompassi verify: Username ${existingUser.username} is already registered`,
);
return {
errorId: "usernameNotFree",
message: "Username in already registered",
status: "error",
};
}
}
const userResult = await updateUserKompassiLoginStatus(
oldUsername,
newUsername,
);
if (!userResult.ok) {
// A valid JWT for a username that no longer exists means the session is
// stale (the account was renamed by an earlier verify or removed), so
// tell the client to log out instead of inviting a retry
Eif (userResult.error === MongoDbError.USER_NOT_FOUND) {
return {
message: "User of the current session not found",
status: "error",
errorId: "loginFailed",
};
}
return {
message: "Updating Kompassi login status failed",
status: "error",
errorId: "unknown",
};
}
const user = userResult.value;
logger.info(
`Kompassi login: username ${oldUsername} changed to ${newUsername}`,
);
return {
message: "Kompassi login status updated",
status: "success",
username: user.username,
kompassiUsernameAccepted: user.kompassiUsernameAccepted,
jwt: getJWT(user.userGroup, user.username),
};
};
export const verifyUpdateUserEmailAddress = async (
username: string,
email: string,
): Promise<PostUpdateUserEmailAddressResponse> => {
const userResult = await updateUserEmailAddress(username, email);
Iif (!userResult.ok) {
return {
message: "Updating user email address failed",
status: "error",
errorId: "unknown",
};
}
const user = userResult.value;
return {
message: "Email address updated successfully",
status: "success",
email: user.email,
emailNotificationPermitAsked: user.emailNotificationPermitAsked,
jwt: getJWT(user.userGroup, user.username),
};
};
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