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[authorizer] Move code for extracting auth header into a function

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This commit is contained in:
Thomas Karolski 2022-03-12 20:01:03 +01:00 committed by Thomas Karolski
parent a584bc3a19
commit c459037b04
1 changed files with 33 additions and 11 deletions
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44
app/server/lib/Authorizer.ts
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@ -89,6 +89,36 @@ export function isSingleUserMode(): boolean {
return process.env.GRIST_SINGLE_USER === '1';
}
/**
* Returns a profile if it can be deduced from the request. This requires a
* header to specify the users' email address.
*/
export function getRequestProfile(req: Request): UserProfile|undefined {
// Try to determine user based on 'x-remote-user' header passed via a webserver rewrite rule.
// TODO: The header should probably be set via an environment variable and if it is not set,
// this code path should be disabled altogether.
let header:string = "x-remote-user";
let profile: UserProfile|undefined;
if (req.headers && req.headers[header]) {
let headerContent = req.headers[header];
if (headerContent) {
const userEmail = headerContent.toString();
const [userName] = userEmail.split("@", 1);
if (userEmail && userName) {
profile = {
"email": userEmail,
"name": userName
};
}
}
}
return profile;
}
/**
* Returns the express request object with user information added, if it can be
* found based on passed in headers or the session. Specifically, sets:
@ -245,18 +275,10 @@ export async function addRequestUser(dbManager: HomeDBManager, permitStore: IPer
}
}
// Try to determine user based on 'x-remote-user' header passed via a webserver rewrite rule.
// TODO: The header should probably be set via an environment variable and if it is not set,
// this code path should be disabled altogether.
if (!mreq.userId) {
if (mreq.headers && mreq.headers["x-remote-user"]) {
const remoteUser = mreq.headers["x-remote-user"].toString();
log.debug("Authorized user based on 'x-remote-user' header found.");
profile = {
"email": remoteUser,
"name": remoteUser
};
const user = await dbManager.getUserByLoginWithRetry(remoteUser, profile);
profile = getRequestProfile(mreq);
if (profile) {
const user = await dbManager.getUserByLoginWithRetry(profile.email, profile);
if(user) {
mreq.user = user;
mreq.users = [profile];