Split everything in sub packages; Created main function; Added many exception handlers for SFTP

Added:
- Split everything into sub packages
- created a main file: __main__.py
- added many exception handlings with SFTP

Edited:
- launcher.bat calls now the __main__.py file

src/handlers/handle_sftp.py

@@ -0,0 +1,59 @@
+import sys
+import pysftp
+import paramiko
+
+from utils.consoleoutput import oColors
+from handlers.handle_config import checkConfig
+
+
+def createSFTPConnection():
+    cnopts = pysftp.CnOpts()
+    cnopts.hostkeys = None # TODO fix this
+    try:
+        sftp = pysftp.Connection(checkConfig().sftp_server, username=checkConfig().sftp_user, \
+               password=checkConfig().sftp_password, port=checkConfig().sftp_port, cnopts=cnopts)
+    except paramiko.ssh_exception.AuthenticationException:
+        print(oColors.brightRed + "[SFTP]: Wrong Username/Password" + oColors.standardWhite)
+    except paramiko.ssh_exception.SSHException:
+        print(oColors.brightRed + "[SFTP]: The SFTP server isn't available." + oColors.standardWhite)
+    try:
+        return sftp
+    except UnboundLocalError:
+        print(oColors.brightRed + "[SFTP]: Check your config.ini!" + oColors.standardWhite)
+        print(oColors.brightRed + "Exiting program..." + oColors.standardWhite)
+        sys.exit()
+
+
+def sftp_showPlugins(sftp):
+    sftp.cd('plugins')
+    for attr in sftp.listdir_attr():
+        print(attr.filename, attr)
+
+
+def sftp_cdPluginDir(sftp):
+    sftp.cd('plugins')
+
+
+def sftp_upload_file(sftp, itemPath):
+    try:
+        sftp.chdir('plugins')
+        sftp.put(itemPath)
+
+    except FileNotFoundError:
+        print(oColors.brightRed + "The *plugins* folder couldn*t be found on the remote host!" + oColors.standardWhite)
+        print(oColors.brightRed + "Aborting installation." + oColors.standardWhite)
+    sftp.close()
+
+
+def sftp_listAll(sftp):
+    try:
+        sftp.chdir('plugins')
+        installedPlugins = sftp.listdir()
+
+    except FileNotFoundError:
+        print(oColors.brightRed + "The *plugins* folder couldn*t be found on the remote host!" + oColors.standardWhite)
+
+    try:
+        return installedPlugins
+    except UnboundLocalError:
+        print(oColors.brightRed + "No plugins were found." + oColors.standardWhite)