refactor: implements DigestUtils

app/src/main/java/io/legado/app/help/JsExtensions.kt

@@ -3,7 +3,6 @@ package io.legado.app.help
 import android.net.Uri
 import android.util.Base64
 import androidx.annotation.Keep
-import cn.hutool.crypto.digest.DigestUtil
 import io.legado.app.constant.AppConst
 import io.legado.app.constant.AppConst.dateFormat
 import io.legado.app.constant.AppLog
@@ -960,8 +959,8 @@ interface JsExtensions {
     fun digestHex(
         data: String,
         algorithm: String,
-    ): String? {
-        return DigestUtil.digester(algorithm).digestHex(data)
+    ): String {
+        return DigestUtils.getDigest(algorithm, data)
     }
 
     /**
@@ -974,8 +973,8 @@ interface JsExtensions {
     fun digestBase64Str(
         data: String,
         algorithm: String,
-    ): String? {
-        return Base64.encodeToString(DigestUtil.digester(algorithm).digest(data), Base64.NO_WRAP)
+    ): String {
+        return Base64.encodeToString(DigestUtils.getDigest(algorithm, data.toByteArray()), Base64.NO_WRAP)
     }
 
     fun md5Encode(str: String): String {

app/src/main/java/io/legado/app/utils/DigestUtils.kt

@@ -0,0 +1,69 @@
+package io.legado.app.utils
+
+import java.security.MessageDigest
+import java.security.NoSuchAlgorithmException
+import javax.crypto.Mac
+import javax.crypto.spec.SecretKeySpec
+
+object DigestUtils {
+
+    /**
+     * 消息摘要
+     * MD2 MD5 SHA-1 SHA-256 SHA-384 SHA-512
+     */
+    fun getDigest(
+        algorithm: String,
+        data: String?
+    ): String {
+        data ?: return ""
+        val bytes = getDigest(algorithm, data.toByteArray())
+        return StringUtils.byteToHexString(bytes)
+    }
+
+    fun getDigest(
+        algorithm: String,
+        data: ByteArray
+    ): ByteArray {
+        lateinit var bytes: ByteArray
+        try {
+            val messageDigest = MessageDigest.getInstance(algorithm)
+            bytes = messageDigest.digest(data)
+        } catch (e: NoSuchAlgorithmException) {
+            e.printOnDebug()
+        }
+        return bytes
+    }
+
+    /**
+     * 散列消息鉴别码
+     * HmacMD5 HmacSHA1 HmacSHA224 HmacSHA256 HmacSHA384 HmacSHA512
+     */
+    fun getHMac(
+        algorithm: String,
+        key: String,
+        data: String?
+    ): String {
+        data ?: return ""
+        val bytes = getHMac(algorithm, key.toByteArray(), data.toByteArray())
+        return StringUtils.byteToHexString(bytes)
+    }
+
+    fun getHMac(
+        algorithm: String,
+        key: ByteArray,
+        data: ByteArray
+    ): ByteArray {
+        lateinit var bytes: ByteArray
+        try {
+            val mac= Mac.getInstance(algorithm)
+            val keySpec = SecretKeySpec(key, algorithm)
+            mac.init(keySpec)
+            mac.update(data)
+            bytes = mac.doFinal()
+        } catch(e: NoSuchAlgorithmException) {
+            e.printOnDebug()
+        }
+        return bytes
+    }
+
+}

app/src/main/java/io/legado/app/utils/MD5Utils.kt

@@ -1,9 +1,5 @@
 package io.legado.app.utils
 
-
-import java.security.MessageDigest
-import java.security.NoSuchAlgorithmException
-
 /**
  * 将字符串转化为MD5
  */
@@ -11,25 +7,7 @@ import java.security.NoSuchAlgorithmException
 object MD5Utils {
 
     fun md5Encode(str: String?): String {
-        if (str == null) return ""
-        var reStr = ""
-        try {
-            val md5: MessageDigest = MessageDigest.getInstance("MD5")
-            val bytes: ByteArray = md5.digest(str.toByteArray())
-            val stringBuffer: StringBuilder = StringBuilder()
-            for (b in bytes) {
-                val bt: Int = b.toInt() and 0xff
-                if (bt < 16) {
-                    stringBuffer.append(0)
-                }
-                stringBuffer.append(Integer.toHexString(bt))
-            }
-            reStr = stringBuffer.toString()
-        } catch (e: NoSuchAlgorithmException) {
-            e.printOnDebug()
-        }
-
-        return reStr
+        return DigestUtils.getDigest("MD5", str)
     }
 
     fun md5Encode16(str: String): String {