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documize/domain/auth/ldap/endpoint.go
2018-09-03 17:36:54 +01:00

441 lines
12 KiB
Go

// Copyright 2016 Documize Inc. <legal@documize.com>. All rights reserved.
//
// This software (Documize Community Edition) is licensed under
// GNU AGPL v3 http://www.gnu.org/licenses/agpl-3.0.en.html
//
// You can operate outside the AGPL restrictions by purchasing
// Documize Enterprise Edition and obtaining a commercial license
// by contacting <sales@documize.com>.
//
// https://documize.com
package ldap
import (
"crypto/tls"
// "database/sql"
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
// "sort"
// "strings"
"github.com/documize/community/core/env"
"github.com/documize/community/core/response"
// "github.com/documize/community/core/secrets"
"github.com/documize/community/core/streamutil"
// "github.com/documize/community/core/stringutil"
"github.com/documize/community/domain"
// "github.com/documize/community/domain/auth"
// usr "github.com/documize/community/domain/user"
ath "github.com/documize/community/model/auth"
lm "github.com/documize/community/model/auth"
"github.com/documize/community/model/user"
ld "gopkg.in/ldap.v2"
)
// Handler contains the runtime information such as logging and database.
type Handler struct {
Runtime *env.Runtime
Store *domain.Store
}
// Preview connects to LDAP using paylaod and returns
// first 100 users for.
// and marks Keycloak disabled users as inactive.
func (h *Handler) Preview(w http.ResponseWriter, r *http.Request) {
h.Runtime.Log.Info("Sync'ing with LDAP")
ctx := domain.GetRequestContext(r)
if !ctx.Administrator {
response.WriteForbiddenError(w)
return
}
var result struct {
Message string `json:"message"`
IsError bool `json:"isError"`
Users []user.User `json:"users"`
}
// Read the request.
defer streamutil.Close(r.Body)
body, err := ioutil.ReadAll(r.Body)
if err != nil {
result.Message = "Error: unable read request body"
result.IsError = true
response.WriteJSON(w, result)
h.Runtime.Log.Error(result.Message, err)
return
}
// Decode LDAP config.
c := lm.LDAPConfig{}
err = json.Unmarshal(body, &c)
if err != nil {
result.Message = "Error: unable read LDAP configuration payload"
result.IsError = true
response.WriteJSON(w, result)
h.Runtime.Log.Error(result.Message, err)
return
}
h.Runtime.Log.Info("Fetching LDAP users")
users, err := fetchUsers(c)
if err != nil {
result.Message = "Error: unable fetch users from LDAP"
result.IsError = true
response.WriteJSON(w, result)
h.Runtime.Log.Error(result.Message, err)
return
}
result.IsError = false
result.Message = fmt.Sprintf("Sync'ed with LDAP, found %d users", len(users))
if len(users) > 100 {
result.Users = users[:100]
} else {
result.Users = users
}
h.Runtime.Log.Info(result.Message)
response.WriteJSON(w, result)
}
// Sync gets list of Keycloak users and inserts new users into Documize
// and marks Keycloak disabled users as inactive.
func (h *Handler) Sync(w http.ResponseWriter, r *http.Request) {
ctx := domain.GetRequestContext(r)
if !ctx.Administrator {
response.WriteForbiddenError(w)
return
}
var result struct {
Message string `json:"message"`
IsError bool `json:"isError"`
}
// Org contains raw auth provider config
org, err := h.Store.Organization.GetOrganization(ctx, ctx.OrgID)
if err != nil {
result.Message = "Error: unable to get organization record"
result.IsError = true
response.WriteJSON(w, result)
h.Runtime.Log.Error(result.Message, err)
return
}
// Exit if not using LDAP
if org.AuthProvider != ath.AuthProviderLDAP {
// result.Message = "Error: skipping user sync with LDAP as it is not the configured option"
// result.IsError = true
// response.WriteJSON(w, result)
// h.Runtime.Log.Info(result.Message)
// return
}
// Make Keycloak auth provider config
c := lm.LDAPConfig{}
// err = json.Unmarshal([]byte(org.AuthConfig), &c)
// if err != nil {
// result.Message = "Error: unable read LDAP configuration data"
// result.IsError = true
// response.WriteJSON(w, result)
// h.Runtime.Log.Error(result.Message, err)
// return
// }
c.ServerHost = "ldap.forumsys.com"
c.ServerPort = 389
c.EncryptionType = "none"
c.BaseDN = "dc=example,dc=com"
c.BindDN = "cn=read-only-admin,dc=example,dc=com"
c.BindPassword = "password"
c.UserFilter = ""
c.GroupFilter = ""
c.DisableLogout = false
c.DefaultPermissionAddSpace = false
address := fmt.Sprintf("%s:%d", c.ServerHost, c.ServerPort)
h.Runtime.Log.Info("Connecting to LDAP server")
l, err := ld.Dial("tcp", address)
if err != nil {
result.Message = "Error: unable to dial LDAP server: " + err.Error()
result.IsError = true
response.WriteJSON(w, result)
h.Runtime.Log.Error(result.Message, err)
return
}
defer l.Close()
if c.EncryptionType == "starttls" {
h.Runtime.Log.Info("Using StartTLS with LDAP server")
err = l.StartTLS(&tls.Config{InsecureSkipVerify: true})
if err != nil {
result.Message = "Error: unable to startTLS with LDAP server: " + err.Error()
result.IsError = true
response.WriteJSON(w, result)
h.Runtime.Log.Error(result.Message, err)
return
}
}
// Authenticate with LDAP server using admin credentials.
h.Runtime.Log.Info("Binding LDAP admin user")
err = l.Bind(c.BindDN, c.BindPassword)
if err != nil {
result.Message = "Error: unable to bind specified admin user to LDAP: " + err.Error()
result.IsError = true
response.WriteJSON(w, result)
h.Runtime.Log.Error(result.Message, err)
return
}
// Get users from LDAP server by using filter
filter := ""
attrs := []string{}
if len(c.GroupFilter) > 0 {
filter = fmt.Sprintf("(&(objectClass=group)(cn=%s))", c.GroupFilter)
attrs = []string{"cn"}
} else {
filter = "(|(objectClass=person)(objectClass=user)(objectClass=inetOrgPerson))"
attrs = []string{"dn", "cn", "givenName", "sn", "mail", "uid"}
}
searchRequest := ld.NewSearchRequest(
c.BaseDN,
ld.ScopeWholeSubtree, ld.NeverDerefAliases, 0, 0, false,
filter,
attrs,
nil,
)
sr, err := l.Search(searchRequest)
if err != nil {
result.Message = "Error: unable to bind specified admin user to LDAP: " + err.Error()
result.IsError = true
response.WriteJSON(w, result)
h.Runtime.Log.Error(result.Message, err)
return
}
fmt.Printf("entries found: %d", len(sr.Entries))
for _, entry := range sr.Entries {
fmt.Printf("[%s] %s (%s %s) @ %s\n",
entry.GetAttributeValue("uid"),
entry.GetAttributeValue("cn"),
entry.GetAttributeValue("givenName"),
entry.GetAttributeValue("sn"),
entry.GetAttributeValue("mail"))
}
// // User list from LDAP
// kcUsers, err := Fetch(c)
// if err != nil {
// result.Message = "Error: unable to fetch Keycloak users: " + err.Error()
// result.IsError = true
// response.WriteJSON(w, result)
// h.Runtime.Log.Error(result.Message, err)
// return
// }
// // User list from Documize
// dmzUsers, err := h.Store.User.GetUsersForOrganization(ctx, "", 99999)
// if err != nil {
// result.Message = "Error: unable to fetch Documize users"
// result.IsError = true
// response.WriteJSON(w, result)
// h.Runtime.Log.Error(result.Message, err)
// return
// }
// sort.Slice(kcUsers, func(i, j int) bool { return kcUsers[i].Email < kcUsers[j].Email })
// sort.Slice(dmzUsers, func(i, j int) bool { return dmzUsers[i].Email < dmzUsers[j].Email })
// insert := []user.User{}
// for _, k := range kcUsers {
// exists := false
// for _, d := range dmzUsers {
// if k.Email == d.Email {
// exists = true
// }
// }
// if !exists {
// insert = append(insert, k)
// }
// }
// // Track the number of Keycloak users with missing data.
// missing := 0
// // Insert new users into Documize
// for _, u := range insert {
// if len(u.Email) == 0 {
// missing++
// } else {
// err = addUser(ctx, h.Runtime, h.Store, u, c.DefaultPermissionAddSpace)
// }
// }
// result.Message = fmt.Sprintf("LDAP sync found %d users, %d new users added, %d users with missing data ignored",
// len(kcUsers), len(insert), missing)
result.IsError = false
result.Message = "Sync complete with LDAP server"
response.WriteJSON(w, result)
h.Runtime.Log.Info(result.Message)
}
// Authenticate checks Keycloak authentication credentials.
func (h *Handler) Authenticate(w http.ResponseWriter, r *http.Request) {
// method := "authenticate"
// ctx := domain.GetRequestContext(r)
// defer streamutil.Close(r.Body)
// body, err := ioutil.ReadAll(r.Body)
// if err != nil {
// response.WriteBadRequestError(w, method, "Bad payload")
// h.Runtime.Log.Error(method, err)
// return
// }
// a := ath.KeycloakAuthRequest{}
// err = json.Unmarshal(body, &a)
// if err != nil {
// response.WriteBadRequestError(w, method, err.Error())
// h.Runtime.Log.Error(method, err)
// return
// }
// a.Domain = strings.TrimSpace(strings.ToLower(a.Domain))
// a.Domain = h.Store.Organization.CheckDomain(ctx, a.Domain) // TODO optimize by removing this once js allows empty domains
// a.Email = strings.TrimSpace(strings.ToLower(a.Email))
// // Check for required fields.
// if len(a.Email) == 0 {
// response.WriteUnauthorizedError(w)
// return
// }
// org, err := h.Store.Organization.GetOrganizationByDomain(a.Domain)
// if err != nil {
// response.WriteUnauthorizedError(w)
// h.Runtime.Log.Error(method, err)
// return
// }
// ctx.OrgID = org.RefID
// // Fetch Keycloak auth provider config
// ac := ath.KeycloakConfig{}
// err = json.Unmarshal([]byte(org.AuthConfig), &ac)
// if err != nil {
// response.WriteBadRequestError(w, method, "Unable to unmarshall Keycloak Public Key")
// h.Runtime.Log.Error(method, err)
// return
// }
// // Decode and prepare RSA Public Key used by keycloak to sign JWT.
// pkb, err := secrets.DecodeBase64([]byte(ac.PublicKey))
// if err != nil {
// response.WriteBadRequestError(w, method, "Unable to base64 decode Keycloak Public Key")
// h.Runtime.Log.Error(method, err)
// return
// }
// pk := string(pkb)
// pk = fmt.Sprintf("-----BEGIN PUBLIC KEY-----\n%s\n-----END PUBLIC KEY-----", pk)
// // Decode and verify Keycloak JWT
// claims, err := auth.DecodeKeycloakJWT(a.Token, pk)
// if err != nil {
// response.WriteBadRequestError(w, method, err.Error())
// h.Runtime.Log.Info("decodeKeycloakJWT failed")
// return
// }
// // Compare the contents from JWT with what we have.
// // Guards against MITM token tampering.
// if a.Email != claims["email"].(string) {
// response.WriteUnauthorizedError(w)
// h.Runtime.Log.Info(">> Start Keycloak debug")
// h.Runtime.Log.Info(a.Email)
// h.Runtime.Log.Info(claims["email"].(string))
// h.Runtime.Log.Info(">> End Keycloak debug")
// return
// }
// h.Runtime.Log.Info("keycloak logon attempt " + a.Email + " @ " + a.Domain)
// u, err := h.Store.User.GetByDomain(ctx, a.Domain, a.Email)
// if err != nil && err != sql.ErrNoRows {
// response.WriteServerError(w, method, err)
// h.Runtime.Log.Error(method, err)
// return
// }
// // Create user account if not found
// if err == sql.ErrNoRows {
// h.Runtime.Log.Info("keycloak add user " + a.Email + " @ " + a.Domain)
// u = user.User{}
// u.Firstname = a.Firstname
// u.Lastname = a.Lastname
// u.Email = a.Email
// u.Initials = stringutil.MakeInitials(u.Firstname, u.Lastname)
// u.Salt = secrets.GenerateSalt()
// u.Password = secrets.GeneratePassword(secrets.GenerateRandomPassword(), u.Salt)
// err = addUser(ctx, h.Runtime, h.Store, u, ac.DefaultPermissionAddSpace)
// if err != nil {
// response.WriteServerError(w, method, err)
// h.Runtime.Log.Error(method, err)
// return
// }
// }
// // Password correct and active user
// if a.Email != strings.TrimSpace(strings.ToLower(u.Email)) {
// response.WriteUnauthorizedError(w)
// return
// }
// // Attach user accounts and work out permissions.
// usr.AttachUserAccounts(ctx, *h.Store, org.RefID, &u)
// // No accounts signals data integrity problem
// // so we reject login request.
// if len(u.Accounts) == 0 {
// response.WriteUnauthorizedError(w)
// h.Runtime.Log.Error(method, err)
// return
// }
// // Abort login request if account is disabled.
// for _, ac := range u.Accounts {
// if ac.OrgID == org.RefID {
// if ac.Active == false {
// response.WriteUnauthorizedError(w)
// h.Runtime.Log.Error(method, err)
// return
// }
// break
// }
// }
// // Generate JWT token
// authModel := ath.AuthenticationModel{}
// authModel.Token = auth.GenerateJWT(h.Runtime, u.RefID, org.RefID, a.Domain)
// authModel.User = u
// response.WriteJSON(w, authModel)
}