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webaccess: Pass settings.users to the authenticate hook

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Authentication plugins almost always want to read and modify
`settings.users`. The settings can already be accessed in a few other
ways, but this is much more convenient.
This commit is contained in:
Richard Hansen 2020-08-27 01:00:36 -04:00 committed by John McLear
parent 250e932f59
commit 80639fdc6a
2 changed files with 8 additions and 13 deletions
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18
doc/api/hooks_server-side.md
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@ -271,9 +271,10 @@ Things in context:
1. req - the request object 1. req - the request object
2. res - the response object 2. res - the response object
3. next - ? 3. users - the users object from settings.json (possibly modified by plugins)
4. username - the username used (optional) 4. next - ?
5. password - the password used (optional) 5. username - the username used (optional)
6. password - the password used (optional)
This hook is called to handle authentication. This hook is called to handle authentication.
@ -297,18 +298,11 @@ onAccessCheck, handleMessageSecurity) to authorize specific privileged actions.
If authentication is successful, the authenticate function MUST set If authentication is successful, the authenticate function MUST set
`context.req.session.user` to the user's settings object. The `username` `context.req.session.user` to the user's settings object. The `username`
property of this object should be set to the user's username. The settings property of this object should be set to the user's username. The settings
object should come from global settings (`settings.users[username]`). object should come from global settings (`context.users[username]`).
Example: Example:
``` ```
let global_settings;
exports.loadSettings = (hook_name, {settings}, cb) => {
global_settings = settings;
return cb();
};
exports.authenticate = (hook_name, context, cb) => { exports.authenticate = (hook_name, context, cb) => {
if (notApplicableToThisPlugin(context)) { if (notApplicableToThisPlugin(context)) {
return cb([]); // Let the next authentication plugin decide return cb([]); // Let the next authentication plugin decide
@ -319,7 +313,7 @@ exports.authenticate = (hook_name, context, cb) => {
return cb([false]); return cb([false]);
} }
console.info(`ep_myplugin.authenticate: Successful authentication from IP ${context.req.ip} for user ${username}`); console.info(`ep_myplugin.authenticate: Successful authentication from IP ${context.req.ip} for user ${username}`);
const users = global_settings.users; const users = context.users;
if (!(username in users)) users[username] = {}; if (!(username in users)) users[username] = {};
users[username].username = username; users[username].username = username;
context.req.session.user = users[username]; context.req.session.user = users[username];

3
src/node/hooks/express/webaccess.js
View file

@ -65,7 +65,8 @@ exports.checkAccess = (req, res, next) => {
step1PreAuthenticate = () => authorize(step2Authenticate); step1PreAuthenticate = () => authorize(step2Authenticate);
step2Authenticate = () => { step2Authenticate = () => {
const ctx = {req, res, next}; if (settings.users == null) settings.users = {};
const ctx = {req, res, users: settings.users, next};
// If the HTTP basic auth header is present, extract the username and password so it can be // If the HTTP basic auth header is present, extract the username and password so it can be
// given to authn plugins. // given to authn plugins.
const httpBasicAuth = const httpBasicAuth =