Initial application creation

.gitignore

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+config.py
 # ---> Linux
 *~
 

.gitmodules

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+[submodule "fstools"]
+	path = fstools
+	url = https://git.mount-mockery.de/pylib/fstools.git
+[submodule "report"]
+	path = report
+	url = https://git.mount-mockery.de/pylib/report.git

__install__.py

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+#!/bin/python
+#
+import os
+import sys
+
+SERVICE_FILE = """
+[Unit]
+Description=File2Mail Service
+After=network-online.target
+Wants=network-online.target
+[Service]
+User=%(UID)d
+Group=%(GID)d
+ExecStart=%(MY_PATH)s/file2mail.sh
+Type=simple
+[Install]
+WantedBy=default.target
+"""
+
+
+def help():
+    print("Usage: prog <UID> <GID> <TARGET_PATH>")
+
+if __name__ == "__main__":
+    if len(sys.argv) == 4:
+        try:
+            uid = int(sys.argv[1])
+            gid = int(sys.argv[2])
+        except ValueError:
+            help()
+        else:
+            if os.path.isdir(sys.argv[3]):
+                with open(os.path.join(sys.argv[3], 'file2mail.service'), "w") as fh:
+                    fh.write(SERVICE_FILE % {
+                        "MY_PATH": os.path.dirname(os.path.abspath(__file__)),
+                        "UID": uid,
+                        "GID": gid})
+            else:
+                help()
+    else:
+        help()

config_example/config.py

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+# Folder to be monitored for new files
+TARGET_FOLDER = "/home/scan"
+
+# Recipiant for the files found in TARGET_PATH
+SEND_TO = "scan@mount-mockery.de"
+
+# Sender
+SEND_FROM = "Scanner-Buchen <scan@mount-mockery.de>"
+SMTP_SERVER = "mount-mockery.de"
+SMTP_USER = "smtp-sendmail"
+SMTP_PASSWORD = "----XXX----"
+
+# Possible log-levels: DEBUG, INFO, WARNING, ERROR
+LOG_LEVEL = "INFO"

file2mail.py

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+#!/usr/bin/env python
+# -*- coding: UTF-8 -*-
+import config
+import fstools
+import json
+import logging
+import mail
+import os
+import report
+import time
+
+LOCK_FILE = os.path.join(config.TARGET_FOLDER, "lock")
+PID = os.getpid()
+
+logger = logging.getLogger('root')
+report.stdoutLoggingConfigure(log_name_lvl=[('root', config.LOG_LEVEL), ])
+
+
+if __name__ == "__main__":
+    while True:
+        # Check if LOCK_FILE EXISTS
+        if not os.path.exists(LOCK_FILE):
+            # Create LOCK_FILE
+            with open(LOCK_FILE, 'w') as fh:
+                fh.write(str(PID))
+            logger.debug("Creating lock-file %s with PID %d", LOCK_FILE, PID)
+            # Read LOCK_FILE content
+            with open(LOCK_FILE, 'r') as fh:
+                lf_pid = json.loads(fh.read())
+            # Check if LOCK_FILE has my PID
+            if lf_pid == PID:
+                # Scan for files to send
+                for filename in fstools.filelist(config.TARGET_FOLDER):
+                    # Exclude LOCK_FILE
+                    if filename != LOCK_FILE:
+                        logger.info("Found %s to send via E-Mail to %s.", filename, config.SEND_TO)
+                        # Send File as E-Mail
+                        try:
+                            mail.send_mail(
+                                config.SEND_FROM,
+                                config.SEND_TO,
+                                "Gesanntes Dokument - %s" % os.path.basename(filename),
+                                "Hier ist das gescannte Dokument vom Scanner in Buchen:", 
+                                files=[filename],
+                                server=config.SMTP_SERVER,
+                                username=config.SMTP_USER,
+                                password=config.SMTP_PASSWORD
+                            )
+                        except Exception:
+                            logger.exception("Exception while sending an E-Mail")
+                        else:
+                            # Remove file
+                            logger.debug("Removing file %s", filename)
+                            os.remove(filename                        )
+                # Remove LOCK_FILE
+                logger.debug("Removing lock-file %s", LOCK_FILE)
+                os.remove(LOCK_FILE)
+            else:
+                logger.warning("LOCK_FILE has PID %d and this proces %d. No action!", lf_pid, PID)
+        else:
+            logger.warning("LOCK_FILE %s already exists. No action!", LOCK_FILE)
+        time.sleep(60)

file2mail.sh

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+#!/bin/sh
+#
+BASEPATH=`dirname $0`
+python $BASEPATH/file2mail.py

fstools

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+Subproject commit c10e8792abb05671dab6de51cdadda3bf8ead50f

mail.py

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+import smtplib
+from pathlib import Path
+from email.mime.multipart import MIMEMultipart
+from email.mime.base import MIMEBase
+from email.mime.text import MIMEText
+from email.utils import COMMASPACE, formatdate
+from email import encoders
+
+
+def send_mail(send_from, send_to, subject, message, files=[],
+              server="localhost", username='', password='',
+              use_tls=True):
+    """Compose and send email with provided info and attachments.
+
+    Args:
+        send_from (str): from name
+        send_to (list[str]): to name(s)
+        subject (str): message title
+        message (str): message body
+        files (list[str]): list of file paths to be attached to email
+        server (str): mail server host name
+        username (str): server auth username
+        password (str): server auth password
+        use_tls (bool): use TLS mode
+    """
+    msg = MIMEMultipart()
+    msg['From'] = send_from
+    msg['To'] = send_to
+    msg['Date'] = formatdate(localtime=True)
+    msg['Subject'] = subject
+
+    msg.attach(MIMEText(message))
+
+    for path in files:
+        part = MIMEBase('application', "octet-stream")
+        with open(path, 'rb') as file:
+            part.set_payload(file.read())
+        encoders.encode_base64(part)
+        part.add_header('Content-Disposition',
+                        'attachment; filename={}'.format(Path(path).name))
+        msg.attach(part)
+
+    smtp = smtplib.SMTP(server)
+    if use_tls:
+        smtp.starttls()
+    smtp.login(username, password)
+    smtp.sendmail(send_from, send_to.split(', '), msg.as_string())
+    smtp.quit()

report

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+Subproject commit b53dd30eae1d679b7eec4999bec50aed55bc105b