logan
88e5f4e7ee
- 新增 crypto.go: AES-256-GCM 加解密，与 Python backend 兼容 - auth.go: Login 添加 LDAP fallback（本地优先→LDAP绑定→自动创建本地用户） - ldap.go: 实现真实 LDAP 连接/用户搜索/密码验证/OU列表/用户列表 - 所有 LDAP 操作解密 admin_password 后使用 - 新增/更新密码存储时加密 - router.go: 补充 delete-user 路由 - 添加 go-ldap/v3 依赖
84 lines
1.9 KiB
Go
84 lines
1.9 KiB
Go
package handler
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import (
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"crypto/aes"
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"crypto/cipher"
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"crypto/rand"
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"encoding/base64"
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"os"
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)
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// getSecretKey returns the AES key derived from SECRET_KEY env var.
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// Mirrors Python's crypto._get_key(): first 32 bytes of utf-8 encoded key, zero-padded.
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func getSecretKey() []byte {
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keyStr := os.Getenv("SECRET_KEY")
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if keyStr == "" {
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keyStr = "dev-secret-key-change-in-production"
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}
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raw := []byte(keyStr)
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if len(raw) >= 32 {
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return raw[:32]
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}
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padded := make([]byte, 32)
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copy(padded, raw)
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return padded
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}
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// decryptPassword decrypts a base64-encoded AES-256-GCM ciphertext.
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// Mirrors Python's crypto.decrypt_password().
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// If the value is not valid encrypted data (e.g., plaintext), returns it as-is.
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func decryptPassword(encrypted string) (string, error) {
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raw, err := base64.StdEncoding.DecodeString(encrypted)
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if err != nil {
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return encrypted, nil // not valid base64 — plaintext
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}
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nonceSize := 12
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if len(raw) <= nonceSize {
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return encrypted, nil
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}
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nonce := raw[:nonceSize]
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ct := raw[nonceSize:]
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key := getSecretKey()
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block, err := aes.NewCipher(key)
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if err != nil {
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return "", err
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}
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aesgcm, err := cipher.NewGCM(block)
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if err != nil {
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return "", err
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}
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plaintext, err := aesgcm.Open(nil, nonce, ct, nil)
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if err != nil {
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return encrypted, nil // decryption failed — return as-is
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}
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return string(plaintext), nil
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}
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// encryptPassword encrypts a plaintext password using AES-256-GCM.
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// Returns base64(nonce + ciphertext), same format as Python's encrypt_password.
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func encryptPassword(plaintext string) (string, error) {
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key := getSecretKey()
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block, err := aes.NewCipher(key)
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if err != nil {
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return "", err
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}
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aesgcm, err := cipher.NewGCM(block)
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if err != nil {
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return "", err
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}
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nonce := make([]byte, 12)
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if _, err := rand.Read(nonce); err != nil {
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return "", err
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}
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ct := aesgcm.Seal(nil, nonce, []byte(plaintext), nil)
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return base64.StdEncoding.EncodeToString(append(nonce, ct...)), nil
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}
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