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Allow ldap bind with authenticating user

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This commit is contained in:
Sven Feyerabend
2021-05-25 11:27:42 +02:00
parent 2688db1d0c
commit 6992f2c8ed
2 changed files with 45 additions and 22 deletions
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56
ldap-overleaf-sl/sharelatex/AuthenticationManager.js
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@@ -269,28 +269,40 @@ const AuthenticationManager = {
const client = new Client({
url: process.env.LDAP_SERVER,
});
//const bindDn = process.env.LDAP_BIND_USER
//const bindPassword = process.env.LDAP_BIND_PW
const ldap_reader = process.env.LDAP_BIND_USER
const ldap_reader_pass = process.env.LDAP_BIND_PW
const ldap_base = process.env.LDAP_BASE
var uid = query.email
const replacer = new RegExp("%u", "g")
const filterstr = process.env.LDAP_USER_FILTER.replace(replacer, ldapEscape.filter`${uid}`) //replace all appearances
console.log("filterstr:" + filterstr)
var userDn = "" //ldapEscape.filter`uid=${uid}` + ',' + ldap_bd;
var mail = ""
var mail = query.email
var uid = query.email.split('@')[0]
var firstname = ""
var lastname = ""
var isAdmin = false
var userDn = ""
//replace all appearences of %u with uid and all %m with mail:
const replacerUid = new RegExp("%u", "g")
const replacerMail = new RegExp("%m","g")
const filterstr = process.env.LDAP_USER_FILTER.replace(replacerUid, ldapEscape.filter`${uid}`).replace(replacerMail, ldapEscape.filter`${mail}`) //replace all appearances
// check bind
try {
await client.bind(ldap_reader, ldap_reader_pass);
//await client.bind(userDn,password);
if(process.env.LDAP_BINDDN){ //try to bind directly with the user trying to log in
userDn = process.env.LDAP_BINDDN.replace(replacerUid,ldapEscape.filter`${uid}`).replace(replacerMail, ldapEscape.filter`${mail}`);
await client.bind(userDn,password);
}else{// use fixed bind user
await client.bind(ldap_reader, ldap_reader_pass);
}
} catch (ex) {
console.log("Could not bind LDAP reader: " + ldap_reader + " err: " + String(ex))
if(process.env.LDAP_BINDDN){
console.log("Could not bind user: " + userDn);
}else{
console.log("Could not bind LDAP reader: " + ldap_reader + " err: " + String(ex))
}
return callback(null, null)
}
// get user data
try {
const {searchEntries, searchRef,} = await client.search(ldap_base, {
@@ -304,7 +316,9 @@ const AuthenticationManager = {
uid = searchEntries[0].uid
firstname = searchEntries[0].givenName
lastname = searchEntries[0].sn
if(!process.env.LDAP_BINDDN){ //dn is already correctly assembled
userDn = searchEntries[0].dn
}
console.log("Found user: " + mail + " Name: " + firstname + " " + lastname + " DN: " + userDn)
}
} catch (ex) {
@@ -317,7 +331,7 @@ const AuthenticationManager = {
// if admin filter is set - only set admin for user in ldap group
// does not matter - admin is deactivated: managed through ldap
if (process.env.LDAP_ADMIN_GROUP_FILTER) {
const adminfilter = process.env.LDAP_ADMIN_GROUP_FILTER.replace(replacer, ldapEscape.filter`${uid}`)
const adminfilter = process.env.LDAP_ADMIN_GROUP_FILTER.replace(replacerUid, ldapEscape.filter`${uid}`).replace(replacerMail, ldapEscape.filter`${mail}`)
adminEntry = await client.search(ldap_base, {
scope: 'sub',
filter: adminfilter,
@@ -339,15 +353,17 @@ const AuthenticationManager = {
console.log("Mail / userDn not set - exit. This should not happen - please set mail-entry in ldap.")
return callback(null, null)
}
try {
await client.bind(userDn, password);
} catch (ex) {
console.log("Could not bind User: " + userDn + " err: " + String(ex))
return callback(null, null)
} finally{
await client.unbind()
}
if(!process.env.BINDDN){//since we used a fixed bind user to obtain the correct userDn we need to bind again to authenticate
try {
await client.bind(userDn, password);
} catch (ex) {
console.log("Could not bind User: " + userDn + " err: " + String(ex))
return callback(null, null)
} finally{
await client.unbind()
}
}
//console.log("Logging in user: " + mail + " Name: " + firstname + " " + lastname + " isAdmin: " + String(isAdmin))
// we are authenticated now let's set the query to the correct mail from ldap
query.email = mail