/
endpoint.go
289 lines (246 loc) · 7.95 KB
/
endpoint.go
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// 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 keycloak
import (
"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"
"github.com/documize/community/domain/store"
usr "github.com/documize/community/domain/user"
ath "github.com/documize/community/model/auth"
"github.com/documize/community/model/user"
)
// Handler contains the runtime information such as logging and database.
type Handler struct {
Runtime *env.Runtime
Store *store.Store
}
// 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 Keycloak
if org.AuthProvider != ath.AuthProviderKeycloak {
result.Message = "Error: skipping user sync with Keycloak 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 := ath.KeycloakConfig{}
err = json.Unmarshal([]byte(org.AuthConfig), &c)
if err != nil {
result.Message = "Error: unable read Keycloak configuration data"
result.IsError = true
response.WriteJSON(w, result)
h.Runtime.Log.Error(result.Message, err)
return
}
// User list from Keycloak
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 = auth.AddExternalUser(ctx, h.Runtime, h.Store, u, c.DefaultPermissionAddSpace)
}
}
result.Message = fmt.Sprintf("Keycloak sync found %d users, %d new users added, %d users with missing data ignored",
len(kcUsers), len(insert), missing)
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)
u, err = auth.AddExternalUser(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)
err = fmt.Errorf("no user accounts found for %s", u.Email)
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)
err = fmt.Errorf("no ACTIVE user account found for %s", u.Email)
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)
}