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feat(apps): use syncronous login functions to augment firebase authen…
…tication. Using syncronous login functions, only allow google.com users to login and support capturing github tokens for accounts which link their github accout.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,30 @@ | ||
| load("//tools:defaults.bzl", "esbuild", "ts_library") | ||
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|
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| package(default_visibility = ["//visibility:private"]) | ||
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| ts_library( | ||
| name = "accounts", | ||
| srcs = [ | ||
| "before-create.ts", | ||
| "before-sign-in.ts", | ||
| "index.ts", | ||
| ], | ||
| visibility = [ | ||
| "//apps/functions:__pkg__", | ||
| ], | ||
| deps = [ | ||
| "@npm//gcip-cloud-functions", | ||
| ], | ||
| ) | ||
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| esbuild( | ||
| name = "accounts_compiled", | ||
| entry_points = [ | ||
| "index.ts", | ||
| ], | ||
| format = "esm", | ||
| visibility = ["//apps:__pkg__"], | ||
| deps = [ | ||
| ":accounts", | ||
| ], | ||
| ) |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| import {Auth, https, UserRecord} from 'gcip-cloud-functions'; | ||
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| /** Validate accounts before their creation using google cloud before create syncronous function. */ | ||
| export const beforeCreate = new Auth().functions().beforeCreateHandler((user: UserRecord) => { | ||
| if (user.email && user.email.indexOf('@google.com') === -1) { | ||
| throw new https.HttpsError('invalid-argument', `Unauthorized email "${user.email}"`); | ||
| } | ||
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|
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| return {}; | ||
| }); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,34 @@ | ||
| import { | ||
| Auth, | ||
| https, | ||
| UserRecord, | ||
| UserEventUpdateRequest, | ||
| AuthEventContext, | ||
| } from 'gcip-cloud-functions'; | ||
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| /** Validate accounts before sign in using google cloud before sigin in syncronous function. */ | ||
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| export const beforeSignIn = new Auth() | ||
| .functions() | ||
| .beforeSignInHandler( | ||
| async (user: UserRecord, context: AuthEventContext): Promise<UserEventUpdateRequest> => { | ||
| /** The UserEventUpdate to save based on the signin results. */ | ||
| const event: UserEventUpdateRequest = {}; | ||
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| // If a user is able to reach this without a login credential being present, throw an auth error. | ||
| // Note: This should not be possible, but it doesn't hurt to have this check in place. | ||
| if (context.credential === undefined) { | ||
| throw new https.HttpsError( | ||
| 'unauthenticated', | ||
| `Cannot sign in as '${user.email}' without credential.`, | ||
| ); | ||
| } | ||
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| // When users sign in with github, we save the access token as a claim on the user object. | ||
| if (context.credential.providerId === 'github.com') { | ||
| event.customClaims = {...event.customClaims, githubToken: context.credential.accessToken}; | ||
| } | ||
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||
| return event; | ||
| }, | ||
| ); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,2 @@ | ||
| export {beforeCreate} from './before-create'; | ||
| export {beforeSignIn} from './before-sign-in'; |
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