369 lines
11 KiB
Go
369 lines
11 KiB
Go
package credentials
|
||
|
||
import (
|
||
"errors"
|
||
"fmt"
|
||
"strings"
|
||
"time"
|
||
|
||
"git.pcux.cn/xuans/Smail/models"
|
||
"git.pcux.cn/xuans/Smail/utils/credential"
|
||
"git.pcux.cn/xuans/Smail/utils/password"
|
||
)
|
||
|
||
var (
|
||
ErrClientNameRequired = errors.New("client name is required")
|
||
ErrClientNotFound = errors.New("client credential not found")
|
||
)
|
||
|
||
// ClientCredentialItem 表示返回给前端的客户端授权码视图
|
||
type ClientCredentialItem struct {
|
||
ID int `json:"id"`
|
||
ClientName string `json:"client_name"`
|
||
Configured bool `json:"configured"`
|
||
CanReveal bool `json:"can_reveal"`
|
||
CodeVersion int `json:"code_version"`
|
||
CreatedAt time.Time `json:"created_at"`
|
||
UpdatedAt time.Time `json:"updated_at"`
|
||
LastUsedAt *time.Time `json:"last_used_at,omitempty"`
|
||
}
|
||
|
||
// CleanAuthCode 统一授权码格式：去除短横线、空格并转大写，提升各类客户端容错率
|
||
func CleanAuthCode(raw string) string {
|
||
raw = strings.ToUpper(strings.TrimSpace(raw))
|
||
raw = strings.ReplaceAll(raw, "-", "")
|
||
raw = strings.ReplaceAll(raw, " ", "")
|
||
return raw
|
||
}
|
||
|
||
// FormatAuthCode 将清洗后的授权码格式化为 4 字符一组带横线的易读格式
|
||
func FormatAuthCode(raw string) string {
|
||
cleaned := CleanAuthCode(raw)
|
||
if len(cleaned) == 0 {
|
||
return ""
|
||
}
|
||
var groups []string
|
||
for len(cleaned) > 4 {
|
||
groups = append(groups, cleaned[:4])
|
||
cleaned = cleaned[4:]
|
||
}
|
||
if len(cleaned) > 0 {
|
||
groups = append(groups, cleaned)
|
||
}
|
||
return strings.Join(groups, "-")
|
||
}
|
||
|
||
// ListClientCredentials 返回指定用户的所有有效（未撤销）客户端授权凭证
|
||
func (s *Service) ListClientCredentials(userID int) ([]ClientCredentialItem, error) {
|
||
if s == nil || s.engine == nil {
|
||
return nil, ErrUnavailable
|
||
}
|
||
if userID <= 0 {
|
||
return nil, ErrInvalidUser
|
||
}
|
||
var items []models.ClientCredential
|
||
if err := s.engine.Where("user_id = ? AND revoked_at IS NULL", userID).OrderBy("id ASC").Find(&items); err != nil {
|
||
return nil, fmt.Errorf("load client credentials: %w", err)
|
||
}
|
||
result := make([]ClientCredentialItem, 0, len(items))
|
||
for _, item := range items {
|
||
result = append(result, ClientCredentialItem{
|
||
ID: item.ID,
|
||
ClientName: item.ClientName,
|
||
Configured: item.CodeHash != "",
|
||
CanReveal: item.CodeCiphertext != "",
|
||
CodeVersion: item.CodeVersion,
|
||
CreatedAt: item.CreatedAt,
|
||
UpdatedAt: item.UpdatedAt,
|
||
LastUsedAt: item.LastUsedAt,
|
||
})
|
||
}
|
||
return result, nil
|
||
}
|
||
|
||
// CreateClientCredential 为指定客户端名称创建专属授权码
|
||
func (s *Service) CreateClientCredential(userID int, clientName string) (string, *ClientCredentialItem, error) {
|
||
if s == nil || s.engine == nil {
|
||
return "", nil, ErrUnavailable
|
||
}
|
||
if userID <= 0 {
|
||
return "", nil, ErrInvalidUser
|
||
}
|
||
clientName = strings.TrimSpace(clientName)
|
||
if clientName == "" {
|
||
return "", nil, ErrClientNameRequired
|
||
}
|
||
if len([]rune(clientName)) > 32 {
|
||
return "", nil, errors.New("client name is too long (max 32 chars)")
|
||
}
|
||
|
||
plain, err := newProtocolCode()
|
||
if err != nil {
|
||
return "", nil, err
|
||
}
|
||
normalizedCode := CleanAuthCode(plain)
|
||
|
||
ciphertext := ""
|
||
if s.vaultRoot != "" {
|
||
ciphertext, err = credential.Encrypt(s.vaultRoot, plain)
|
||
if err != nil {
|
||
return "", nil, fmt.Errorf("protect client authorization code: %w", err)
|
||
}
|
||
}
|
||
hash, err := password.Hash(normalizedCode)
|
||
if err != nil {
|
||
return "", nil, fmt.Errorf("hash client authorization code: %w", err)
|
||
}
|
||
|
||
s.mu.Lock()
|
||
defer s.mu.Unlock()
|
||
|
||
var existing models.ClientCredential
|
||
has, err := s.engine.Where("user_id = ? AND client_name = ?", userID, clientName).Get(&existing)
|
||
if err != nil {
|
||
return "", nil, fmt.Errorf("check existing client credential: %w", err)
|
||
}
|
||
if has {
|
||
// 如果此前被撤销，重新启用并更新密钥；如果未被撤销则不允许重名创建
|
||
if existing.RevokedAt == nil {
|
||
return "", nil, errors.New("client name already exists")
|
||
}
|
||
version := existing.CodeVersion + 1
|
||
existing.CodeHash = hash
|
||
existing.CodeCiphertext = ciphertext
|
||
existing.CodeVersion = version
|
||
existing.RevokedAt = nil
|
||
existing.LastUsedAt = nil
|
||
existing.UpdatedAt = s.now()
|
||
if _, err := s.engine.ID(existing.ID).Cols("code_hash", "code_ciphertext", "code_version", "revoked_at", "last_used_at", "updated_at").Update(&existing); err != nil {
|
||
return "", nil, fmt.Errorf("re-activate client credential: %w", err)
|
||
}
|
||
item := &ClientCredentialItem{
|
||
ID: existing.ID,
|
||
ClientName: existing.ClientName,
|
||
Configured: true,
|
||
CanReveal: existing.CodeCiphertext != "",
|
||
CodeVersion: existing.CodeVersion,
|
||
CreatedAt: existing.CreatedAt,
|
||
UpdatedAt: existing.UpdatedAt,
|
||
}
|
||
return plain, item, nil
|
||
}
|
||
|
||
record := models.ClientCredential{
|
||
UserID: userID,
|
||
ClientName: clientName,
|
||
CodeHash: hash,
|
||
CodeCiphertext: ciphertext,
|
||
CodeVersion: 1,
|
||
CreatedAt: s.now(),
|
||
UpdatedAt: s.now(),
|
||
}
|
||
if _, err := s.engine.Insert(&record); err != nil {
|
||
return "", nil, fmt.Errorf("insert client credential: %w", err)
|
||
}
|
||
|
||
item := &ClientCredentialItem{
|
||
ID: record.ID,
|
||
ClientName: record.ClientName,
|
||
Configured: true,
|
||
CanReveal: record.CodeCiphertext != "",
|
||
CodeVersion: record.CodeVersion,
|
||
CreatedAt: record.CreatedAt,
|
||
UpdatedAt: record.UpdatedAt,
|
||
}
|
||
return plain, item, nil
|
||
}
|
||
|
||
// RegenerateClientCredential 重新生成已有客户端专属授权码
|
||
func (s *Service) RegenerateClientCredential(userID int, clientID int) (string, error) {
|
||
if s == nil || s.engine == nil {
|
||
return "", ErrUnavailable
|
||
}
|
||
if userID <= 0 || clientID <= 0 {
|
||
return "", ErrInvalidUser
|
||
}
|
||
|
||
plain, err := newProtocolCode()
|
||
if err != nil {
|
||
return "", err
|
||
}
|
||
normalizedCode := CleanAuthCode(plain)
|
||
|
||
ciphertext := ""
|
||
if s.vaultRoot != "" {
|
||
ciphertext, err = credential.Encrypt(s.vaultRoot, plain)
|
||
if err != nil {
|
||
return "", fmt.Errorf("protect client authorization code: %w", err)
|
||
}
|
||
}
|
||
hash, err := password.Hash(normalizedCode)
|
||
if err != nil {
|
||
return "", fmt.Errorf("hash client authorization code: %w", err)
|
||
}
|
||
|
||
s.mu.Lock()
|
||
defer s.mu.Unlock()
|
||
|
||
var existing models.ClientCredential
|
||
has, err := s.engine.Where("id = ? AND user_id = ? AND revoked_at IS NULL", clientID, userID).Get(&existing)
|
||
if err != nil {
|
||
return "", fmt.Errorf("load client credential: %w", err)
|
||
}
|
||
if !has {
|
||
return "", ErrClientNotFound
|
||
}
|
||
|
||
version := existing.CodeVersion + 1
|
||
existing.CodeHash = hash
|
||
existing.CodeCiphertext = ciphertext
|
||
existing.CodeVersion = version
|
||
existing.LastUsedAt = nil
|
||
existing.UpdatedAt = s.now()
|
||
|
||
if _, err := s.engine.ID(existing.ID).Cols("code_hash", "code_ciphertext", "code_version", "last_used_at", "updated_at").Update(&existing); err != nil {
|
||
return "", fmt.Errorf("update client authorization code: %w", err)
|
||
}
|
||
return plain, nil
|
||
}
|
||
|
||
// RevokeClientCredential 撤销指定客户端授权码
|
||
func (s *Service) RevokeClientCredential(userID int, clientID int) error {
|
||
if s == nil || s.engine == nil {
|
||
return ErrUnavailable
|
||
}
|
||
if userID <= 0 || clientID <= 0 {
|
||
return ErrInvalidUser
|
||
}
|
||
s.mu.Lock()
|
||
defer s.mu.Unlock()
|
||
|
||
now := s.now()
|
||
affected, err := s.engine.Where("id = ? AND user_id = ? AND revoked_at IS NULL", clientID, userID).
|
||
Cols("revoked_at", "code_hash", "code_ciphertext", "updated_at").
|
||
Update(&models.ClientCredential{RevokedAt: &now, CodeHash: "", CodeCiphertext: ""})
|
||
if err != nil {
|
||
return fmt.Errorf("revoke client credential: %w", err)
|
||
}
|
||
if affected == 0 {
|
||
return ErrClientNotFound
|
||
}
|
||
return nil
|
||
}
|
||
|
||
// RevealClientCredentials 解密当前用户所有有效客户端授权码明文，仅在密码验证后调用
|
||
func (s *Service) RevealClientCredentials(userID int) (map[int]string, error) {
|
||
if s == nil || s.engine == nil {
|
||
return nil, ErrUnavailable
|
||
}
|
||
if userID <= 0 {
|
||
return nil, ErrInvalidUser
|
||
}
|
||
s.mu.Lock()
|
||
defer s.mu.Unlock()
|
||
|
||
vaultRoot := s.vaultRoot
|
||
if vaultRoot == "" {
|
||
return make(map[int]string), nil
|
||
}
|
||
var items []models.ClientCredential
|
||
if err := s.engine.Where("user_id = ? AND revoked_at IS NULL", userID).Find(&items); err != nil {
|
||
return nil, fmt.Errorf("load client credentials for reveal: %w", err)
|
||
}
|
||
result := make(map[int]string, len(items))
|
||
for _, item := range items {
|
||
if item.CodeCiphertext == "" || item.CodeHash == "" {
|
||
continue
|
||
}
|
||
plain, err := credential.Decrypt(vaultRoot, item.CodeCiphertext)
|
||
if err != nil {
|
||
continue
|
||
}
|
||
result[item.ID] = plain
|
||
}
|
||
return result, nil
|
||
}
|
||
|
||
// VerifyClientOrProtocolCode 同时支持客户端专属授权码以及遗留的协议授权码
|
||
func (s *Service) VerifyClientOrProtocolCode(userID int, protocol string, rawPlain string) bool {
|
||
matched, _ := s.CheckClientOrProtocolCode(userID, protocol, rawPlain)
|
||
return matched
|
||
}
|
||
|
||
// CheckClientOrProtocolCode 将计算过载向上返回，避免被当成密码错误累计封禁。
|
||
func (s *Service) CheckClientOrProtocolCode(userID int, protocol string, rawPlain string) (bool, error) {
|
||
if s == nil || s.engine == nil || userID <= 0 || rawPlain == "" || len([]byte(rawPlain)) > 256 {
|
||
return false, password.CheckDummy(rawPlain)
|
||
}
|
||
cleanedPlain := CleanAuthCode(rawPlain)
|
||
if cleanedPlain == "" {
|
||
return false, password.CheckDummy(rawPlain)
|
||
}
|
||
|
||
// 1. 优先校验客户端专属授权码
|
||
var clients []models.ClientCredential
|
||
err := s.engine.Where("user_id = ? AND revoked_at IS NULL AND code_hash != ''", userID).Find(&clients)
|
||
if err == nil && len(clients) > 0 {
|
||
for _, client := range clients {
|
||
// 比对清洗后的统一大写无横线授权码
|
||
matched, err := password.Check(client.CodeHash, cleanedPlain)
|
||
if err != nil {
|
||
return false, err
|
||
}
|
||
if matched {
|
||
now := s.now()
|
||
affected, err := s.engine.ID(client.ID).
|
||
Where("revoked_at IS NULL AND code_version = ? AND code_hash = ?", client.CodeVersion, client.CodeHash).
|
||
Cols("last_used_at", "updated_at").Update(&models.ClientCredential{LastUsedAt: &now})
|
||
if err != nil || affected == 1 {
|
||
return err == nil, err
|
||
}
|
||
valid, err := s.engine.ID(client.ID).
|
||
Where("revoked_at IS NULL AND code_version = ? AND code_hash = ?", client.CodeVersion, client.CodeHash).
|
||
Exist(&models.ClientCredential{})
|
||
return valid, err
|
||
}
|
||
}
|
||
}
|
||
|
||
// 2. 回退校验旧版按协议划分的授权码（支持 cleanedPlain 或原樣 rawPlain）
|
||
protocol, err = NormalizeProtocol(protocol)
|
||
if err != nil {
|
||
return false, password.CheckDummy(rawPlain)
|
||
}
|
||
var item models.ProtocolCredential
|
||
has, err := s.engine.Where("user_id = ? AND protocol = ? AND enabled = ? AND revoked_at IS NULL", userID, protocol, true).Get(&item)
|
||
if err != nil || !has || item.CodeHash == "" {
|
||
return false, password.CheckDummy(rawPlain)
|
||
}
|
||
|
||
// 兼容旧哈希直接比对原始输入，或者比对清洗后的输入
|
||
trimmedPlain := strings.TrimSpace(rawPlain)
|
||
matched, err := password.Check(item.CodeHash, trimmedPlain)
|
||
if err != nil {
|
||
return false, err
|
||
}
|
||
if !matched && trimmedPlain != cleanedPlain {
|
||
matched, err = password.Check(item.CodeHash, cleanedPlain)
|
||
}
|
||
if err != nil || !matched {
|
||
return false, err
|
||
}
|
||
|
||
now := s.now()
|
||
affected, err := s.engine.ID(item.ID).
|
||
Where("enabled = ? AND revoked_at IS NULL AND code_version = ? AND code_hash = ?", true, item.CodeVersion, item.CodeHash).
|
||
Cols("last_used_at", "updated_at").Update(&models.ProtocolCredential{LastUsedAt: &now})
|
||
if err == nil && affected == 1 {
|
||
return true, nil
|
||
}
|
||
if err != nil {
|
||
return false, err
|
||
}
|
||
|
||
valid, err := s.engine.ID(item.ID).
|
||
Where("enabled = ? AND revoked_at IS NULL AND code_version = ? AND code_hash = ?", true, item.CodeVersion, item.CodeHash).
|
||
Exist(&models.ProtocolCredential{})
|
||
return valid, err
|
||
}
|