salix/modules/account/back/models/ldap-config.js

323 lines
10 KiB
JavaScript

const app = require('vn-loopback/server/server');
const ldap = require('../util/ldapjs-extra');
const crypto = require('crypto');
const nthash = require('smbhash').nthash;
const isProduction = require('vn-loopback/common/methods/application/isProduction');
module.exports = Self => {
const shouldSync = isProduction();
Self.getLinker = async function() {
return await Self.findOne({
fields: [
'server',
'rdn',
'password',
'userDn',
'groupDn'
]
});
};
Object.assign(Self.prototype, {
async init() {
this.client = ldap.createClient({
url: this.server
});
this.client.on('error', () => {});
await this.client.bind(this.rdn, this.password);
},
async deinit() {
await this.client.unbind();
},
async syncUser(userName, info, password) {
let {
client,
accountConfig
} = this;
let dn = `uid=${userName},${this.userDn}`;
if (info.hasAccount) {
let {user} = info;
let oldUser = await client.searchOne(this.userDn, {
scope: 'sub',
filter: `&(uid=${userName})`
});
let nickname = user.nickname || userName;
let nameArgs = nickname.trim().split(' ');
let sn = nameArgs.length > 1
? nameArgs.splice(1).join(' ')
: '-';
let newEntry = {
uid: userName,
objectClass: [
'inetOrgPerson',
'posixAccount',
'sambaSamAccount'
],
cn: nickname,
displayName: nickname,
givenName: nameArgs[0],
sn,
mail: info.corporateMail,
preferredLanguage: user.lang || 'en',
homeDirectory: `${accountConfig.homedir}/${userName}`,
loginShell: accountConfig.shell,
uidNumber: info.uidNumber,
gidNumber: accountConfig.idBase + user.roleFk,
sambaSID: '-'
};
if (password) {
let salt = crypto
.randomBytes(8)
.toString('base64');
let hash = crypto.createHash('sha1');
hash.update(password);
hash.update(salt, 'binary');
let digest = hash.digest('binary');
let ssha = Buffer
.from(digest + salt, 'binary')
.toString('base64');
Object.assign(newEntry, {
userPassword: `{SSHA}${ssha}`,
sambaNTPassword: nthash(password)
});
} else if (oldUser) {
Object.assign(newEntry, {
userPassword: oldUser.userPassword,
sambaNTPassword: oldUser.sambaNTPassword
});
}
for (let prop in newEntry) {
if (newEntry[prop] == null)
delete newEntry[prop];
}
if (oldUser) {
let changes = [];
let skipProps = new Set([
'dn',
'controls'
]);
for (let prop in oldUser) {
let deleteProp = !skipProps.has(prop)
&& !newEntry.hasOwnProperty(prop);
if (!deleteProp) continue;
changes.push(new ldap.Change({
operation: 'delete',
modification: {
[prop]: oldUser[prop]
}
}));
}
for (let prop in newEntry) {
if (this.isEqual(oldUser[prop], newEntry[prop]))
continue;
changes.push(new ldap.Change({
operation: 'replace',
modification: {
[prop]: newEntry[prop]
}
}));
}
if (shouldSync && changes.length)
await client.modify(dn, changes);
} else if (shouldSync)
await client.add(dn, newEntry);
} else {
try {
if (shouldSync)
await client.del(dn);
// eslint-disable-next-line no-console
console.log(` -> User '${userName}' removed from LDAP`);
} catch (e) {
if (e.name !== 'NoSuchObjectError') throw e;
}
}
},
isEqual(a, b) {
if (Array.isArray(a) && Array.isArray(b)) {
if (a.length !== b.length)
return false;
for (let element of a) {
if (b.indexOf(element) === -1)
return false;
}
return true;
} else
return a == b;
},
async syncUserGroups(userName, info) {
let {client} = this;
let {user} = info;
let groupDn = this.groupDn;
let opts = {
scope: 'sub',
attributes: ['dn', 'cn'],
filter: `&(memberUid=${userName})(objectClass=posixGroup)`
};
let oldGroups = await client.searchAll(groupDn, opts);
let deleteGroups = [];
let addGroups = [];
if (info.hasAccount) {
let oldSet = new Set();
oldGroups.forEach(e => oldSet.add(e.cn));
let newSet = new Set();
user.roles().forEach(e => newSet.add(e.inherits().name));
for (let group of oldGroups) {
if (!newSet.has(group.cn))
deleteGroups.push(group.cn);
}
for (let role of user.roles()) {
if (!oldSet.has(role.inherits().name))
addGroups.push(role.inherits().name);
}
} else {
for (let group of oldGroups)
deleteGroups.push(group.cn);
}
async function applyOperations(groups, operation) {
for (let group of groups) {
try {
let dn = `cn=${group},${groupDn}`;
if (shouldSync) {
await client.modify(dn, new ldap.Change({
operation,
modification: {memberUid: userName}
}));
}
} catch (err) {
if (err.name !== 'NoSuchObjectError')
throw err;
}
}
}
await applyOperations(deleteGroups, 'delete');
await applyOperations(addGroups, 'add');
},
async getUsers(usersToSync) {
let {client} = this;
let opts = {
scope: 'sub',
attributes: ['uid'],
filter: `uid=*`
};
await client.searchForeach(this.userDn, opts,
o => usersToSync.add(o.uid));
},
async syncRoles() {
let $ = app.models;
let {
client,
accountConfig
} = this;
// Prepare data
let roles = await $.VnRole.find({
fields: ['id', 'name', 'description']
});
let roleRoles = await $.RoleRole.find({
fields: ['role', 'inheritsFrom']
});
let roleMap = toMap(roleRoles, e => {
return {key: e.inheritsFrom, val: e.role};
});
let accounts = await $.Account.find({
fields: ['id'],
include: {
relation: 'user',
scope: {
fields: ['name', 'roleFk'],
where: {active: true}
}
}
});
let accountMap = toMap(accounts, e => {
let user = e.user();
if (!user) return;
return {key: user.roleFk, val: user.name};
});
// Delete roles
let opts = {
scope: 'sub',
attributes: ['dn'],
filter: 'objectClass=posixGroup'
};
let reqs = [];
await client.searchForeach(this.groupDn, opts, object => {
if (shouldSync)
reqs.push(client.del(object.dn));
});
await Promise.all(reqs);
// Recreate roles
reqs = [];
for (let role of roles) {
let newEntry = {
objectClass: ['top', 'posixGroup'],
cn: role.name,
description: role.description,
gidNumber: accountConfig.idBase + role.id
};
let memberUid = [];
for (let subrole of roleMap.get(role.id) || [])
memberUid = memberUid.concat(accountMap.get(subrole) || []);
if (memberUid.length) {
memberUid.sort((a, b) => a.localeCompare(b));
newEntry.memberUid = memberUid;
}
let dn = `cn=${role.name},${this.groupDn}`;
if (shouldSync)
reqs.push(client.add(dn, newEntry));
}
await Promise.all(reqs);
}
});
};
function toMap(array, fn) {
let map = new Map();
for (let item of array) {
let keyVal = fn(item);
if (!keyVal) continue;
let key = keyVal.key;
if (!map.has(key)) map.set(key, []);
map.get(key).push(keyVal.val);
}
return map;
}