From 9d43cc3f24175524c798b7ac91fb194a5babb49d Mon Sep 17 00:00:00 2001
From: "DESKTOP-DPA61F8\\Benedek" <nagy.benedek96@gmail.com>
Date: Wed, 21 Apr 2021 00:45:42 +0200
Subject: [PATCH] DONE: Client command reciever ERROR: On RSA decoding TODO:
 Implement functions

---
 client/client.py      | 116 ++++++++++++++++++++++++++++++++++++++++++
 client/client_test.py |   2 +
 2 files changed, 118 insertions(+)
 create mode 100644 client/client.py
 create mode 100644 client/client_test.py

diff --git a/client/client.py b/client/client.py
new file mode 100644
index 0000000..8c38a7a
--- /dev/null
+++ b/client/client.py
@@ -0,0 +1,116 @@
+import os, sys, getopt, json
+from Crypto.PublicKey import RSA
+from Crypto.PublicKey.RSA import RsaKey
+
+ABSOLUTE_PATH = os.path.abspath(os.path.dirname(sys.argv[0]))
+CONFIG_LOCATION = ABSOLUTE_PATH + os.path.sep + 'config' + os.path.sep + 'config.txt'
+PASSPHRASE = ''
+LOGGED_IN = False
+SERVER_PUBLIC_KEY = None
+CLIENT_PRIVATE_KEY = None
+
+
+def loadPublicKey() -> RsaKey:
+    with open(CONFIG_LOCATION) as json_file:
+        data = json.load(json_file)
+    return RSA.import_key(data['publicServerKey'])
+
+
+def loadPrivateKey(passphrase: str) -> RsaKey:
+    with open(CONFIG_LOCATION) as json_file:
+        data = json.load(json_file)
+    return RSA.import_key(data['privateClientKey'], passphrase)
+
+
+def printCommand():
+    print('\nInvalid command! Available commands:\n' +
+          '     Create directory                        -> MKD <directory name> \n' +
+          '     Remove directory                        -> RMV <directory name> \n' +
+          '     Get current directory                   -> GWD \n' +
+          '     Change current directory                -> CWD <path> \n' +
+          '     List content of current directory       -> LST \n' +
+          '     Upload file to current directory        -> UPL <filename> \n' +
+          '     Download file from current directory    -> DNL <filename> \n' +
+          '     Login                                   -> LIN <username> <password> \n' +
+          '     Logout                                  -> LOUT \n')
+
+def printCommandsWihtoutLogin():
+    print('\nYou must log in before issuing other commads!\n',
+          '     Login    -> LIN <username> <password> \n',
+          '     Exit     -> EXIT\n')
+
+
+try:
+    opts, args = getopt.getopt(sys.argv[1:], 'hp:')
+except getopt.GetoptError:
+    print('Error: Unknown option detected.')
+    sys.exit(1)
+
+for opt, arg in opts:
+    if opt in '-p':
+        PASSPHRASE = arg
+
+if PASSPHRASE == '':
+    print('Key required to start client!')
+    print('Usage:')
+    print('  client.py -p <passphrase>')
+    sys.exit(1)
+
+if not os.path.isfile(CONFIG_LOCATION) or os.stat(CONFIG_LOCATION).st_size == 0:
+    print('Invalid client config file')
+    sys.exit(1)
+
+# SERVER_PUBLIC_KEY = loadPublicKey()
+# CLIENT_PRIVATE_KEY = loadPrivateKey(PASSPHRASE)
+
+
+while True:
+    command = input("Type a command:").split(" ")
+    if len(command) > 3 or len(command) < 1:
+        print("Invalid command format!")
+
+    if command[0] == 'LIN':
+        print('TODO: Implement!')
+        LOGGED_IN = True
+        continue
+
+    if command[0] == 'EXIT':
+        sys.exit(1)
+
+    if not LOGGED_IN:
+        printCommandsWihtoutLogin()
+        continue
+
+    if command[0] == 'LOUT':
+        print('TODO: Implement!')
+        continue
+
+    if command[0] == 'MKD':
+        print('TODO: Implement!')
+        continue
+
+    if command[0] == 'RMD':
+        print('TODO: Implement!')
+        continue
+
+    if command[0] == 'GWD':
+        print('TODO: Implement!')
+        continue
+
+    if command[0] == 'CWD':
+        print('TODO: Implement!')
+        continue
+
+    if command[0] == 'LST':
+        print('TODO: Implement!')
+        continue
+
+    if command[0] == 'UPL':
+        print('TODO: Implement!')
+        continue
+
+    if command[0] == 'DNL':
+        print('TODO: Implement!')
+        continue
+
+    printCommand()
diff --git a/client/client_test.py b/client/client_test.py
new file mode 100644
index 0000000..139597f
--- /dev/null
+++ b/client/client_test.py
@@ -0,0 +1,2 @@
+
+