finish qq provider

fix session cmd: save session every in every command

add qq init

fix init sequence

update gitignore

fix miaosic cmd

add kugou album info in search

update qq music api.

providers/qq/utils.go

@@ -0,0 +1,111 @@
+package qq
+
+import (
+	"bytes"
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/md5"
+	crand "crypto/rand"
+	"crypto/rsa"
+	"crypto/x509"
+	"encoding/hex"
+	"encoding/pem"
+	"fmt"
+	"github.com/AynaLivePlayer/miaosic/providers/qq/goqrcdec"
+	"math/rand"
+	"strconv"
+	"time"
+)
+
+var rng *rand.Rand
+
+func calcMd5(data ...string) string {
+	h := md5.New()
+	for _, d := range data {
+		_, _ = h.Write([]byte(d))
+	}
+	return hex.EncodeToString(h.Sum(nil))
+}
+
+func rsaEncrypt(plainText []byte, publicKeyPEM string) ([]byte, error) {
+	block, _ := pem.Decode([]byte(publicKeyPEM))
+	if block == nil {
+		return nil, fmt.Errorf("failed to parse PEM block containing the public key")
+	}
+
+	pub, err := x509.ParsePKIXPublicKey(block.Bytes)
+	if err != nil {
+		return nil, err
+	}
+
+	rsaPub, ok := pub.(*rsa.PublicKey)
+	if !ok {
+		return nil, fmt.Errorf("key is not an RSA public key")
+	}
+
+	return rsa.EncryptPKCS1v15(crand.Reader, rsaPub, plainText)
+}
+
+func aesEncrypt(key, plaintext []byte) ([]byte, error) {
+	block, err := aes.NewCipher(key)
+	if err != nil {
+		return nil, err
+	}
+
+	// 填充数据
+	padding := aes.BlockSize - len(plaintext)%aes.BlockSize
+	padText := bytes.Repeat([]byte{byte(padding)}, padding)
+	plaintext = append(plaintext, padText...)
+
+	// 使用key作为IV
+	ciphertext := make([]byte, aes.BlockSize+len(plaintext))
+	iv := key[:aes.BlockSize]
+	mode := cipher.NewCBCEncrypter(block, iv)
+	mode.CryptBlocks(ciphertext[aes.BlockSize:], plaintext)
+
+	return ciphertext[aes.BlockSize:], nil
+}
+
+func getSearchID() string {
+	/* 随机 searchID
+
+	Returns:
+		随机 searchID
+	*/
+	e := rng.Intn(20) + 1
+	t := e * 18014398509481984
+	n := rng.Intn(4194305) * 4294967296
+	a := time.Now().UnixNano() / int64(time.Millisecond)
+	r := a % (24 * 60 * 60 * 1000)
+	return strconv.FormatInt(int64(t)+int64(n)+r, 10)
+}
+
+func getGuid() string {
+	const charset = "abcdef1234567890"
+	result := make([]byte, 32)
+	for i := range result {
+		result[i] = charset[rng.Intn(len(charset))]
+	}
+	return string(result)
+}
+
+// 计算hash33
+func hash33(s string, h int) int {
+	val := uint64(h)
+	for _, c := range []byte(s) {
+		val = (val << 5) + val + uint64(c)
+	}
+	return int(2147483647 & val)
+}
+
+func qrcDecrypt(hexStr string) (string, error) {
+	// 1. hex 解码
+	data, err := hex.DecodeString(hexStr)
+	if err != nil {
+		return "", err
+	}
+
+	val, err := goqrcdec.DecodeQRC(data)
+
+	return string(val), err
+}