书籍列表接口新增参数

utility/encrypt/aes.go

@@ -0,0 +1,80 @@
+package encrypt
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"server/internal/model"
+)
+
+// 内部常量，外部无法访问
+const (
+	aesKey = "K8mN2pQ9rS5vX1zA" // 16字节密钥
+	aesIV  = "H7jL4oP8qR6uW0yZ" // 16字节初始化向量
+)
+
+// DecryptAdsData 解密广告数据并反序列化
+func DecryptAdsData(encryptedData string) (*model.AdsData, error) {
+	// 解码base64数据
+	ciphertext, err := base64.StdEncoding.DecodeString(encryptedData)
+	if err != nil {
+		return nil, fmt.Errorf("base64 decode failed: %v", err)
+	}
+
+	// 创建AES cipher
+	block, err := aes.NewCipher([]byte(aesKey))
+	if err != nil {
+		return nil, fmt.Errorf("aes new cipher failed: %v", err)
+	}
+
+	// 检查数据长度
+	if len(ciphertext) < aes.BlockSize {
+		return nil, fmt.Errorf("ciphertext too short")
+	}
+
+	// 创建CBC模式
+	mode := cipher.NewCBCDecrypter(block, []byte(aesIV))
+
+	// 解密
+	plaintext := make([]byte, len(ciphertext))
+	mode.CryptBlocks(plaintext, ciphertext)
+
+	// 去除PKCS7填充
+	plaintext, err = pkcs7Unpad(plaintext)
+	if err != nil {
+		return nil, fmt.Errorf("pkcs7 unpad failed: %v", err)
+	}
+
+	// 反序列化JSON
+	var adsData model.AdsData
+	err = json.Unmarshal(plaintext, &adsData)
+	if err != nil {
+		return nil, fmt.Errorf("json unmarshal failed: %v", err)
+	}
+
+	return &adsData, nil
+}
+
+// pkcs7Unpad 去除PKCS7填充
+func pkcs7Unpad(data []byte) ([]byte, error) {
+	length := len(data)
+	if length == 0 {
+		return nil, fmt.Errorf("invalid padding")
+	}
+
+	padding := int(data[length-1])
+	if padding > length {
+		return nil, fmt.Errorf("invalid padding")
+	}
+
+	// 验证填充
+	for i := length - padding; i < length; i++ {
+		if data[i] != byte(padding) {
+			return nil, fmt.Errorf("invalid padding")
+		}
+	}
+
+	return data[:length-padding], nil
+}

utility/encrypt/password_test.go

@@ -0,0 +1,52 @@
+package encrypt
+
+import "testing"
+
+func TestEncryptPassword(t *testing.T) {
+	type args struct {
+		password string
+	}
+	tests := []struct {
+		name    string
+		args    args
+		want    string
+		wantErr bool
+	}{
+		// TODO: Add test cases.
+		{"case1", args{"Yh243480917"}, "$2a$10$Q6yGw6W./eG0M9uKO1KFUeTs9FEndsPzHL0iTgvf4y/cJ9L3Rnqb.", false},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := EncryptPassword(tt.args.password)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("EncryptPassword() error = %v, wantErr %v", err, tt.wantErr)
+				return
+			}
+			if got != tt.want {
+				t.Errorf("EncryptPassword() got = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestComparePassword(t *testing.T) {
+	type args struct {
+		hashedPassword string
+		password       string
+	}
+	tests := []struct {
+		name string
+		args args
+		want bool
+	}{
+		// TODO: Add test cases.
+		{"case1", args{"$2a$10$lKkwK05oskB.YPnXcGH2pupQxoK.02GDdGxWpstxc1keiWVFekhJ6", "Y"}, true},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := ComparePassword(tt.args.hashedPassword, tt.args.password); got != tt.want {
+				t.Errorf("ComparePassword() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}