fix caricamenti

utils/ftp/send_data.py

@@ -0,0 +1,142 @@
+from ftplib import FTP, FTP_TLS, all_errors
+from io import BytesIO
+import logging
+import aiomysql
+
+logger = logging.getLogger(__name__)
+
+class FTPConnection:
+    """
+    Manages an FTP or FTP_TLS connection, providing a context manager for automatic disconnection.
+    """
+    def __init__(self, host, port=21, use_tls=False, user='', passwd='',
+                 passive=True, timeout=None, debug=0, context=None):
+
+        self.use_tls = use_tls
+
+        if use_tls:
+            self.ftp = FTP_TLS(context=context, timeout=timeout) if context else FTP_TLS(timeout=timeout)
+        else:
+            self.ftp = FTP(timeout=timeout)
+
+        if debug > 0:
+            self.ftp.set_debuglevel(debug)
+
+        self.ftp.connect(host, port)
+        self.ftp.login(user, passwd)
+        self.ftp.set_pasv(passive)
+
+        if use_tls:
+            self.ftp.prot_p()
+
+    def __getattr__(self, name):
+        """Delega tutti i metodi non definiti all'oggetto FTP sottostante"""
+        return getattr(self.ftp, name)
+
+    def __enter__(self):
+        return self
+
+    def __exit__(self, exc_type, exc_val, exc_tb):
+        self.ftp.quit()
+
+async def send_raw_csv_to_customer(cfg: dict, id: int, unit: str, tool: str, csv_data: str, pool: object) -> bool:
+    None
+    return True
+
+async def send_elab_csv_to_customer(cfg: dict, id: int, unit: str, tool: str, csv_data: str, pool: object) -> bool:
+    """
+    Sends elaborated CSV data to a customer via FTP.
+
+    Retrieves FTP connection details from the database based on the unit name,
+    then establishes an FTP connection and uploads the CSV data.
+
+    Args:
+        cfg (dict): Configuration dictionary (not directly used in this function but passed for consistency).
+        id (int): The ID of the record being processed (used for logging).
+        unit (str): The name of the unit associated with the data.
+        tool (str): The name of the tool associated with the data.
+        csv_data (str): The CSV data as a string to be sent.
+        pool (object): The database connection pool.
+
+    Returns:
+        bool: True if the CSV data was sent successfully, False otherwise.
+    """
+    query = """
+    select ftp_addrs, ftp_user, ftp_passwd, ftp_parm, ftp_filename, ftp_target, duedate from units
+        where name = '%s'";'
+    """
+    async with pool.acquire() as conn:
+        async with conn.cursor(aiomysql.DictCursor) as cur:
+            try:
+                await cur.execute(query, (unit,))
+                send_ftp_info = await cur.fetchone()
+                logger.info(f"id {id} - {unit} - {tool}: estratti i dati per invio via ftp")
+            except Exception as e:
+                logging.error(f"id {id} - {unit} - {tool} - errore nel query per invio ftp: {e}")
+
+            try:
+                # Converti in bytes
+                csv_bytes = csv_data.encode('utf-8')
+                csv_buffer = BytesIO(csv_bytes)
+
+                ftp_parms = parse_ftp_parms(send_ftp_info["ftp_parm"])
+                use_tls = 'ssl_version' in ftp_parms
+                passive = ftp_parms.get('passive', True)
+                port = ftp_parms.get('port', 21)
+
+                # Connessione FTP
+                with FTPConnection(host=send_ftp_info["ftp_addrs"], port=port, use_tls=use_tls, user=send_ftp_info["ftp_user"], passwd=send_ftp_info["ftp_passwd"], passive=passive) as ftp:
+
+                    # Cambia directory
+                    if send_ftp_info["ftp_target"] != "/":
+                        ftp.cwd(send_ftp_info["ftp_target"])
+
+                    # Invia il file
+                    result = ftp.storbinary(f'STOR {send_ftp_info["ftp_filename"]}', csv_buffer)
+
+                    if result.startswith('226'):
+                        logging.info(f"File {send_ftp_info["ftp_filename"]} inviato con successo")
+                        return True
+                    else:
+                        logging.error(f"Errore nell'invio: {result}")
+                        return False
+
+            except all_errors as e:
+                logging.error(f"Errore FTP: {e}")
+                return False
+            except Exception as e:
+                logging.error(f"Errore generico: {e}")
+                return False
+            finally:
+                csv_buffer.close()
+
+def parse_ftp_parms(ftp_parms):
+    """
+    Parses a string of FTP parameters into a dictionary.
+
+    Args:
+        ftp_parms (str): A string containing key-value pairs separated by commas,
+                         with keys and values separated by '=>'.
+
+    Returns:
+        dict: A dictionary where keys are parameter names (lowercase) and values are their parsed values.
+    """
+    # Rimuovere spazi e dividere per virgola
+    pairs = ftp_parms.split(',')
+    result = {}
+
+    for pair in pairs:
+        if '=>' in pair:
+            key, value = pair.split('=>', 1)
+            key = key.strip().lower()
+            value = value.strip().lower()
+
+            # Convertire i valori appropriati
+            if value.isdigit():
+                value = int(value)
+            elif value == '':
+                value = None
+
+            result[key] = value
+
+    return result