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REST API for file management completed (without JWT)

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This commit is contained in:
vedang29
2025-04-14 17:47:12 +05:30
parent 2b8c4491f5
commit 72bfd2eb0c
13 changed files with 16 additions and 536 deletions
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src/main/java/com/skycrate/backend/skycrateBackend/services/EncryptionUtil.java
+1 -74
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@@ -82,77 +82,4 @@ public class EncryptionUtil {
keyGen.init(AES_KEY_SIZE);
return keyGen.generateKey();
}
}
//
//import javax.crypto.Cipher;
//import javax.crypto.KeyGenerator;
//import javax.crypto.SecretKey;
//import javax.crypto.spec.SecretKeySpec;
//import java.security.*;
//
//public class EncryptionUtil {
// private static final String RSA_ALGORITHM = "RSA";
// private static final String AES_ALGORITHM = "AES";
// private static final int RSA_KEY_SIZE = 2048;
// private static final int AES_KEY_SIZE = 256;
//
// public static KeyPair generateKeyPair() throws NoSuchAlgorithmException {
// KeyPairGenerator keyGen = KeyPairGenerator.getInstance(RSA_ALGORITHM);
// keyGen.initialize(RSA_KEY_SIZE);
// return keyGen.generateKeyPair();
// }
//
// public static byte[] encrypt(byte[] data, PublicKey publicKey) throws Exception {
// // Generate a random AES key
// KeyGenerator keyGen = KeyGenerator.getInstance(AES_ALGORITHM);
// keyGen.init(AES_KEY_SIZE);
// SecretKey aesKey = keyGen.generateKey();
//
// // Encrypt the data with the AES key
// Cipher aesCipher = Cipher.getInstance(AES_ALGORITHM);
// aesCipher.init(Cipher.ENCRYPT_MODE, aesKey);
// byte[] encryptedData = aesCipher.doFinal(data);
//
// // Encrypt the AES key with the RSA public key
// Cipher rsaCipher = Cipher.getInstance(RSA_ALGORITHM);
// rsaCipher.init(Cipher.ENCRYPT_MODE, publicKey);
// byte[] encryptedAesKey = rsaCipher.doFinal(aesKey.getEncoded());
//
// // Combine the encrypted AES key and the encrypted data
// byte[] combined = new byte[encryptedAesKey.length + encryptedData.length + 4];
// System.arraycopy(encryptedAesKey, 0, combined, 0, encryptedAesKey.length);
// System.arraycopy(encryptedData, 0, combined, encryptedAesKey.length, encryptedData.length);
// // Store the length of the encrypted AES key at the beginning
// combined[encryptedAesKey.length + encryptedData.length] = (byte) (encryptedAesKey.length >> 24);
// combined[encryptedAesKey.length + encryptedData.length + 1] = (byte) (encryptedAesKey.length >> 16);
// combined[encryptedAesKey.length + encryptedData.length + 2] = (byte) (encryptedAesKey.length >> 8);
// combined[encryptedAesKey.length + encryptedData.length + 3] = (byte) (encryptedAesKey.length);
//
// return combined;
// }
//
// public static byte[] decrypt(byte[] encryptedData, PrivateKey privateKey) throws Exception {
// // Read the length of the encrypted AES key
// int aesKeyLength = ((encryptedData[encryptedData.length - 4] & 0xFF) << 24) |
// ((encryptedData[encryptedData.length - 3] & 0xFF) << 16) |
// ((encryptedData[encryptedData.length - 2] & 0xFF) << 8) |
// (encryptedData[encryptedData.length - 1] & 0xFF);
//
// // Extract the encrypted AES key and the encrypted data
// byte[] encryptedAesKey = new byte[aesKeyLength];
// byte[] encryptedDataBytes = new byte[encryptedData.length - aesKeyLength - 4];
// System.arraycopy(encryptedData, 0, encryptedAesKey, 0, aesKeyLength);
// System.arraycopy(encryptedData, aesKeyLength, encryptedDataBytes, 0, encryptedDataBytes.length);
//
// // Decrypt the AES key with the RSA private key
// Cipher rsaCipher = Cipher.getInstance(RSA_ALGORITHM);
// rsaCipher.init(Cipher.DECRYPT_MODE, privateKey);
// byte[] aesKeyBytes = rsaCipher.doFinal(encryptedAesKey);
// SecretKey aesKey = new SecretKeySpec(aesKeyBytes, AES_ALGORITHM);
//
// // Decrypt the data with the AES key
// Cipher aesCipher = Cipher.getInstance(AES_ALGORITHM);
// aesCipher.init(Cipher.DECRYPT_MODE, aesKey);
// return aesCipher.doFinal(encryptedDataBytes);
// }
//}
}
src/main/java/com/skycrate/backend/skycrateBackend/services/HDFSOperations.java
+9 -139
View File
@@ -1,16 +1,24 @@
package com.skycrate.backend.skycrateBackend.services;
import com.skycrate.backend.skycrateBackend.config.HDFSConfig;
import com.skycrate.backend.skycrateBackend.utils.KeyUtil;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.Path;
import org.springframework.stereotype.Service;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Paths;
import java.security.KeyFactory;
import java.security.KeyPair;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.spec.PKCS8EncodedKeySpec;
import java.util.ArrayList;
import java.util.List;
@@ -142,142 +150,4 @@ public class HDFSOperations {
}
}
}
// public void listFilesAndFolders(String hdfsPath) {
// try {
// FileSystem fs = HDFSConfig.getHDFS();
// Path path = new Path(hdfsPath);
//
// if (fs.exists(path)) {
// listFilesAndFoldersRecursively(fs, path, "");
// }
// } catch (IOException e) {
// // Handle I/O exception and log the error
// throw new RuntimeException("Failed to list files and folders due to I/O issue: " + e.getMessage(), e);
// } catch (Exception e) {
// // Catch any other exceptions
// throw new RuntimeException("Failed to list files and folders: " + e.getMessage(), e);
// }
// }
//
// private void listFilesAndFoldersRecursively(FileSystem fs, Path path, String indent) throws IOException {
// FileStatus[] fileStatuses = fs.listStatus(path);
// for (FileStatus fileStatus : fileStatuses) {
// System.out.println(indent + (fileStatus.isDirectory() ? "📁 " : "📄 ") + fileStatus.getPath().getName());
// if (fileStatus.isDirectory()) {
// listFilesAndFoldersRecursively(fs, fileStatus.getPath(), indent + " ");
// }
// }
// }
}
//package com.skycrate.backend.skycrateBackend.services;
//
//
//import com.skycrate.backend.skycrateBackend.config.HDFSConfig;
//import com.skycrate.backend.skycrateBackend.dto.User;
//import org.apache.hadoop.fs.*;
//import org.springframework.stereotype.Service;
//
//import java.io.IOException;
//import java.nio.file.Files;
//import java.nio.file.Paths;
//
//@Service
//public class HDFSOperations {
// public static void uploadFile(String localPath, String hdfsPath, String uploadedFileName, User user) throws Exception {
// FileSystem fs = HDFSConfig.getHDFS();
// byte[] data = Files.readAllBytes(Paths.get(localPath)); // Read file as bytes
// byte[] encryptedData = EncryptionUtil.encrypt(data, user.getKeyPair().getPublic());
//
// // Save encryptedData to a temporary file and upload it
// String tempFilePath = localPath + ".enc";
// Files.write(Paths.get(tempFilePath), encryptedData); // Write bytes to temp file
//
// // Construct the final HDFS path using the provided uploaded file name
// String finalHdfsPath = hdfsPath.endsWith("/") ? hdfsPath + uploadedFileName : hdfsPath + "/" + uploadedFileName;
//
// fs.copyFromLocalFile(new Path(tempFilePath), new Path(finalHdfsPath));
// System.out.println("✅ File uploaded: " + finalHdfsPath);
//
// // Clean up temporary file
// Files.delete(Paths.get(tempFilePath));
// }
//
// public static void downloadFile(String hdfsPath, String localPath, User user) throws Exception {
// FileSystem fs = HDFSConfig.getHDFS();
// String tempFilePath = localPath + ".enc";
//
// fs.copyToLocalFile(new Path(hdfsPath), new Path(tempFilePath));
//
// // Read the encrypted file as bytes
// byte[] encryptedData = Files.readAllBytes(Paths.get(tempFilePath));
// byte[] decryptedData = EncryptionUtil.decrypt(encryptedData, user.getKeyPair().getPrivate());
//
// Files.write(Paths.get(localPath), decryptedData); // Write decrypted bytes to local file
// System.out.println("✅ File downloaded: " + localPath);
//
// // Clean up temporary file
// Files.delete(Paths.get(tempFilePath));
// }
//
// public static void createFolder(String hdfsPath) throws Exception {
// FileSystem fs = HDFSConfig.getHDFS();
// Path path = new Path(hdfsPath);
// if (!fs.exists(path)) {
// fs.mkdirs(path);
// System.out.println("✅ Folder created: " + hdfsPath);
// } else {
// System.out.println("⚠️ Folder already exists: " + hdfsPath);
// }
// }
//
// public static void deleteFile(String hdfsFilePath) throws Exception {
// FileSystem fs = HDFSConfig.getHDFS();
// Path path = new Path(hdfsFilePath);
// if (fs.exists(path)) {
// fs.delete(path, false); // false means do not recursively delete
// System.out.println("✅ File deleted: " + hdfsFilePath);
// } else {
// System.out.println("⚠️ File does not exist: " + hdfsFilePath);
// }
// }
//
// public static void deleteFolder(String hdfsFolderPath) throws Exception {
// FileSystem fs = HDFSConfig.getHDFS();
// Path path = new Path(hdfsFolderPath);
// if (fs.exists(path)) {
// fs.delete(path, true); // true means recursively delete
// System.out.println("✅ Folder deleted: " + hdfsFolderPath);
// } else {
// System.out.println("⚠️ Folder does not exist: " + hdfsFolderPath);
// }
// }
//
// public static void listFilesAndFolders(String hdfsPath) throws Exception {
// FileSystem fs = HDFSConfig.getHDFS();
// Path path = new Path(hdfsPath);
//
// if (!fs.exists(path)) {
// System.out.println("⚠️ Path does not exist: " + hdfsPath);
// return;
// }
//
// System.out.println("Listing files and folders in: " + hdfsPath);
// listFilesAndFoldersRecursively(fs, path, "");
// }
//
// private static void listFilesAndFoldersRecursively(FileSystem fs, Path path, String indent) throws IOException {
// FileStatus[] fileStatuses = fs.listStatus(path);
// for (FileStatus fileStatus : fileStatuses) {
// System.out.println(indent + (fileStatus.isDirectory() ? "📁 " : "📄 ") + fileStatus.getPath().getName());
// if (fileStatus.isDirectory()) {
// listFilesAndFoldersRecursively(fs, fileStatus.getPath(), indent + " "); // Indent for subdirectories
// }
// }
// }
//}
}