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feat: add ldap login support (#5706)
* feat: add ldap login support * fix: ldap permission config group
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| Original file line number | Diff line number | Diff line change |
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@@ -9,6 +9,7 @@ const ( | |
| OFFLINE_DOWNLOAD | ||
| INDEX | ||
| SSO | ||
| LDAP | ||
| ) | ||
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| const ( | ||
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,159 @@ | ||
| package handles | ||
|
|
||
| import ( | ||
| "crypto/tls" | ||
| "errors" | ||
| "fmt" | ||
| "strings" | ||
|
|
||
| "github.com/alist-org/alist/v3/internal/conf" | ||
| "github.com/alist-org/alist/v3/internal/db" | ||
| "github.com/alist-org/alist/v3/internal/model" | ||
| "github.com/alist-org/alist/v3/internal/op" | ||
| "github.com/alist-org/alist/v3/internal/setting" | ||
| "github.com/alist-org/alist/v3/pkg/utils" | ||
| "github.com/alist-org/alist/v3/pkg/utils/random" | ||
| "github.com/alist-org/alist/v3/server/common" | ||
| "github.com/gin-gonic/gin" | ||
| "gopkg.in/ldap.v3" | ||
| ) | ||
|
|
||
| func LoginLdap(c *gin.Context) { | ||
| var req LoginReq | ||
| if err := c.ShouldBind(&req); err != nil { | ||
| common.ErrorResp(c, err, 400) | ||
| return | ||
| } | ||
| loginLdap(c, &req) | ||
| } | ||
|
|
||
| func loginLdap(c *gin.Context, req *LoginReq) { | ||
| enabled := setting.GetBool(conf.LdapLoginEnabled) | ||
| if !enabled { | ||
| common.ErrorStrResp(c, "ldap is not enabled", 403) | ||
| return | ||
| } | ||
|
|
||
| // check count of login | ||
| ip := c.ClientIP() | ||
| count, ok := loginCache.Get(ip) | ||
| if ok && count >= defaultTimes { | ||
| common.ErrorStrResp(c, "Too many unsuccessful sign-in attempts have been made using an incorrect username or password, Try again later.", 429) | ||
| loginCache.Expire(ip, defaultDuration) | ||
| return | ||
| } | ||
|
|
||
| // Auth start | ||
| ldapServer := setting.GetStr(conf.LdapServer) | ||
| ldapManagerDN := setting.GetStr(conf.LdapManagerDN) | ||
| ldapManagerPassword := setting.GetStr(conf.LdapManagerPassword) | ||
| ldapUserSearchBase := setting.GetStr(conf.LdapUserSearchBase) | ||
| ldapUserSearchFilter := setting.GetStr(conf.LdapUserSearchFilter) // (uid=%s) | ||
|
|
||
| var tlsEnabled bool = false | ||
| if strings.HasPrefix(ldapServer, "ldaps://") { | ||
| tlsEnabled = true | ||
| ldapServer = strings.TrimPrefix(ldapServer, "ldaps://") | ||
| } else if strings.HasPrefix(ldapServer, "ldap://") { | ||
| ldapServer = strings.TrimPrefix(ldapServer, "ldap://") | ||
| } | ||
|
|
||
| l, err := ldap.Dial("tcp", ldapServer) | ||
| if err != nil { | ||
| utils.Log.Errorf("failed to connect to LDAP: %v", err) | ||
| common.ErrorResp(c, err, 500) | ||
| return | ||
| } | ||
| defer l.Close() | ||
|
|
||
| if tlsEnabled { | ||
| // Reconnect with TLS | ||
| err = l.StartTLS(&tls.Config{InsecureSkipVerify: true}) | ||
| if err != nil { | ||
| utils.Log.Errorf("failed to start tls: %v", err) | ||
| common.ErrorResp(c, err, 500) | ||
| return | ||
| } | ||
| } | ||
|
|
||
| // First bind with a read only user | ||
| if ldapManagerDN != "" && ldapManagerPassword != "" { | ||
| err = l.Bind(ldapManagerDN, ldapManagerPassword) | ||
| if err != nil { | ||
| utils.Log.Errorf("Failed to bind to LDAP: %v", err) | ||
| common.ErrorResp(c, err, 500) | ||
| return | ||
| } | ||
| } | ||
|
|
||
| // Search for the given username | ||
| searchRequest := ldap.NewSearchRequest( | ||
| ldapUserSearchBase, | ||
| ldap.ScopeWholeSubtree, ldap.NeverDerefAliases, 0, 0, false, | ||
| fmt.Sprintf(ldapUserSearchFilter, req.Username), | ||
| []string{"dn"}, | ||
| nil, | ||
| ) | ||
| sr, err := l.Search(searchRequest) | ||
| if err != nil { | ||
| utils.Log.Errorf("LDAP search failed: %v", err) | ||
| common.ErrorResp(c, err, 500) | ||
| return | ||
| } | ||
| if len(sr.Entries) != 1 { | ||
| utils.Log.Errorf("User does not exist or too many entries returned") | ||
| common.ErrorResp(c, err, 500) | ||
| return | ||
| } | ||
| userDN := sr.Entries[0].DN | ||
|
|
||
| // Bind as the user to verify their password | ||
| err = l.Bind(userDN, req.Password) | ||
| if err != nil { | ||
| utils.Log.Errorf("Failed to auth. %v", err) | ||
| common.ErrorResp(c, err, 400) | ||
| loginCache.Set(ip, count+1) | ||
| return | ||
| } else { | ||
| utils.Log.Infof("Auth successful username:%s", req.Username) | ||
| } | ||
| // Auth finished | ||
|
|
||
| user, err := op.GetUserByName(req.Username) | ||
| if err != nil { | ||
| user, err = ladpRegister(req.Username) | ||
| if err != nil { | ||
| common.ErrorResp(c, err, 400) | ||
| loginCache.Set(ip, count+1) | ||
| return | ||
| } | ||
| } | ||
|
|
||
| // generate token | ||
| token, err := common.GenerateToken(user) | ||
| if err != nil { | ||
| common.ErrorResp(c, err, 400, true) | ||
| return | ||
| } | ||
| common.SuccessResp(c, gin.H{"token": token}) | ||
| loginCache.Del(ip) | ||
| } | ||
|
|
||
| func ladpRegister(username string) (*model.User, error) { | ||
| if username == "" { | ||
| return nil, errors.New("cannot get username from ldap provider") | ||
| } | ||
| user := &model.User{ | ||
| ID: 0, | ||
| Username: username, | ||
| Password: random.String(16), | ||
| Permission: int32(setting.GetInt(conf.LdapDefaultPermission, 0)), | ||
| BasePath: setting.GetStr(conf.LdapDefaultDir), | ||
| Role: 0, | ||
| Disabled: false, | ||
| } | ||
| if err := db.CreateUser(user); err != nil { | ||
| return nil, err | ||
| } | ||
| return user, nil | ||
| } |
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