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forked from ScoDoc/ScoDoc
ScoDoc-Front/app/scodoc/notes_log.py

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# -*- mode: python -*-
# -*- coding: utf-8 -*-
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import os
import time
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import traceback
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from email.header import Header
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from flask import g, current_app
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"""Simple & stupid file logguer, used only to debug
(logging to SQL is done in scolog)
"""
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LOG_FILENAME = "notes.log" # empty to disable logging
DEFAULT_LOG_DIR = "/tmp" # clients should call set_log_directory to change this
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ALARM_DESTINATION = "emmanuel.viennet@gmail.com" # XXX a mettre en preference
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class _logguer(object):
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def __init__(self):
self.file = None
self.directory = None
self.set_log_directory(DEFAULT_LOG_DIR)
def set_log_directory(self, directory):
if self.directory != directory and self.file:
# changing directory when a log is already open: close it
self.file.close()
self.file = None
self.directory = directory
def _open(self):
if LOG_FILENAME:
path = os.path.join(self.directory, LOG_FILENAME)
self.file = open(path, "a")
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self("new _logguer (%s)" % path)
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else:
self.file = None # logging disabled
def __call__(self, msg):
if not self.file:
self._open()
if self.file:
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try:
dept = getattr(g, "scodoc_dept", "")
except RuntimeError:
# Flask Working outside of application context.
dept = ""
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if dept:
dept = " (%s)" % dept
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msg = dept + " " + msg
self.file.write("[%s]%s\n" % (time.strftime("%a %b %d %H:%M:%S %Y"), msg))
if current_app:
current_app.logger.info(msg)
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self.file.flush()
log = _logguer()
# Alarms by email:
def sendAlarm(subj, txt):
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from . import sco_utils
from . import sco_emails
from . import sco_preferences
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msg = MIMEMultipart()
subj = Header(subj, sco_utils.SCO_ENCODING)
msg["Subject"] = subj
msg["From"] = sco_preferences.get_preference("email_from_addr")
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msg["To"] = ALARM_DESTINATION
msg.epilogue = ""
txt = MIMEText(txt, "plain", sco_utils.SCO_ENCODING)
msg.attach(txt)
sco_emails.sendEmail(msg)
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# Debug: log call stack
def logCallStack():
log("Call stack:\n" + "\n".join(x.strip() for x in traceback.format_stack()[:-1]))