admin.py
498 lines
| 14.9 KiB
| text/x-python
|
PythonLexer
/ schainpy / admin.py
Miguel Valdez
|
r681 | """The admin module contains all administrative classes relating to the schain python api. | ||
| The main role of this module is to send some reports. It contains a | ||||
| notification class and a standard error handing class. | ||||
| $Id: admin.py 3966 2015-12-01 14:32:29Z miguel.urco $ | ||||
| """ | ||||
Juan C. Espinoza
|
r1126 | import os | ||
| import sys | ||||
| import time | ||||
|
Miguel Valdez
|
r688 | import traceback | ||
|
Miguel Valdez
|
r681 | import smtplib | ||
| import ConfigParser | ||||
| import StringIO | ||||
|
Juan C. Espinoza
|
r1126 | from threading import Thread | ||
| r1129 | from multiprocessing import Process | |||
|
Miguel Valdez
|
r681 | from email.mime.text import MIMEText | ||
| from email.mime.application import MIMEApplication | ||||
| from email.mime.multipart import MIMEMultipart | ||||
|
Juan C. Espinoza
|
r1126 | from schainpy.utils import log | ||
| r1128 | from schainpy.model.graphics.jroplot_data import popup | |||
|
Juan C. Espinoza
|
r1126 | |||
| def get_path(): | ||||
| ''' | ||||
| Return schainpy path | ||||
| ''' | ||||
| try: | ||||
| root = __file__ | ||||
| if os.path.islink(root): | ||||
| root = os.path.realpath(root) | ||||
| return os.path.dirname(os.path.abspath(root)) | ||||
| except: | ||||
| log.error('I am sorry, but something is wrong... __file__ not found') | ||||
| r1129 | class Alarm(Process): | |||
|
Juan C. Espinoza
|
r1126 | ''' | ||
| r1128 | modes: | |||
| 0 - All | ||||
| 1 - Sound alarm | ||||
| 2 - Send email | ||||
| 3 - Popup message | ||||
| 4 - Send to alarm system TODO | ||||
|
Juan C. Espinoza
|
r1126 | ''' | ||
| r1129 | def __init__(self, modes=[1], **kwargs): | |||
| Process.__init__(self) | ||||
| self.modes = modes | ||||
| self.kwargs = kwargs | ||||
| @staticmethod | ||||
| r1128 | def play_sound(): | |||
| sound = os.path.join(get_path(), 'alarm1.oga') | ||||
| if os.path.exists(sound): | ||||
| for __ in range(2): | ||||
| os.system('paplay {}'.format(sound)) | ||||
| time.sleep(0.5) | ||||
| else: | ||||
| log.warning('Unable to play alarm, sound file not found', 'ADMIN') | ||||
|
Juan C. Espinoza
|
r1126 | |||
| r1129 | @staticmethod | |||
| r1128 | def send_email(**kwargs): | |||
| notifier = SchainNotify() | ||||
| notifier.notify(**kwargs) | ||||
| r1129 | @staticmethod | |||
| r1128 | def show_popup(message='Error'): | |||
| popup(message) | ||||
| r1129 | @staticmethod | |||
| r1128 | def send_alarm(): | |||
| pass | ||||
| r1129 | @staticmethod | |||
| r1128 | def get_kwargs(kwargs, keys): | |||
| ret = {} | ||||
| for key in keys: | ||||
| ret[key] = kwargs[key] | ||||
| return ret | ||||
| r1129 | def run(self): | |||
| tasks = { | ||||
| 1 : self.send_email, | ||||
| 2 : self.play_sound, | ||||
| 3 : self.show_popup, | ||||
| 4 : self.send_alarm, | ||||
| } | ||||
| tasks_args = { | ||||
| 1: ['email', 'message', 'subject', 'subtitle', 'filename'], | ||||
| 2: [], | ||||
| 3: ['message'], | ||||
| 4: [], | ||||
| } | ||||
| procs = [] | ||||
| for mode in self.modes: | ||||
| if 0 in self.modes: | ||||
| for x in tasks: | ||||
| t = Thread(target=tasks[x], kwargs=self.get_kwargs(self.kwargs, tasks_args[x])) | ||||
| t.start() | ||||
| procs.append(t) | ||||
| break | ||||
| else: | ||||
| t = Thread(target=tasks[mode], kwargs=self.get_kwargs(self.kwargs, tasks_args[mode])) | ||||
| r1128 | t.start() | |||
| r1129 | procs.append(t) | |||
| for t in procs: | ||||
| t.join() | ||||
|
Juan C. Espinoza
|
r1126 | |||
| class SchainConfigure(): | ||||
|
Miguel Valdez
|
r681 | |||
| r1128 | __DEFAULT_ADMINISTRATOR_EMAIL = "juan.espinoza@jro.igp.gob.pe" | |||
|
Miguel Valdez
|
r681 | __DEFAULT_EMAIL_SERVER = "jro-zimbra.igp.gob.pe" | ||
|
Miguel Valdez
|
r683 | __DEFAULT_SENDER_EMAIL = "notifier-schain@jro.igp.gob.pe" | ||
| __DEFAULT_SENDER_PASS = "" | ||||
|
Miguel Valdez
|
r681 | |||
| __SCHAIN_ADMINISTRATOR_EMAIL = "CONTACT" | ||||
| __SCHAIN_EMAIL_SERVER = "MAILSERVER" | ||||
| __SCHAIN_SENDER_EMAIL = "MAILSERVER_ACCOUNT" | ||||
|
Miguel Valdez
|
r683 | __SCHAIN_SENDER_PASS = "MAILSERVER_PASSWORD" | ||
|
Miguel Valdez
|
r681 | |||
| def __init__(self, initFile = None): | ||||
| # Set configuration file | ||||
| if (initFile == None): | ||||
| self.__confFilePath = "/etc/schain.conf" | ||||
| else: | ||||
| self.__confFilePath = initFile | ||||
| # open configuration file | ||||
| try: | ||||
| self.__confFile = open(self.__confFilePath, "r") | ||||
| except IOError: | ||||
| # can't read from file - use all hard-coded values | ||||
| self.__initFromHardCode() | ||||
| return | ||||
| # create Parser using standard module ConfigParser | ||||
| self.__parser = ConfigParser.ConfigParser() | ||||
| # read conf file into a StringIO with "[madrigal]\n" section heading prepended | ||||
| strConfFile = StringIO.StringIO("[schain]\n" + self.__confFile.read()) | ||||
| # parse StringIO configuration file | ||||
| self.__parser.readfp(strConfFile) | ||||
| # read information from configuration file | ||||
| self.__readConfFile() | ||||
| # close conf file | ||||
| self.__confFile.close() | ||||
| def __initFromHardCode(self): | ||||
| self.__sender_email = self.__DEFAULT_SENDER_EMAIL | ||||
|
Miguel Valdez
|
r683 | self.__sender_pass = self.__DEFAULT_SENDER_PASS | ||
|
Miguel Valdez
|
r681 | self.__admin_email = self.__DEFAULT_ADMINISTRATOR_EMAIL | ||
| self.__email_server = self.__DEFAULT_EMAIL_SERVER | ||||
| def __readConfFile(self): | ||||
| """__readConfFile is a private helper function that reads information from the parsed config file. | ||||
| Inputs: None | ||||
| Returns: Void. | ||||
| Affects: Initializes class member variables that are found in the config file. | ||||
| Exceptions: MadrigalError thrown if any key not found. | ||||
| """ | ||||
| # get the sender email | ||||
| try: | ||||
| self.__sender_email = self.__parser.get("schain", self.__SCHAIN_SENDER_EMAIL) | ||||
| except: | ||||
| self.__sender_email = self.__DEFAULT_SENDER_EMAIL | ||||
|
Miguel Valdez
|
r683 | |||
| # get the sender password | ||||
| try: | ||||
| self.__sender_pass = self.__parser.get("schain", self.__SCHAIN_SENDER_PASS) | ||||
| except: | ||||
| self.__sender_pass = self.__DEFAULT_SENDER_PASS | ||||
|
Miguel Valdez
|
r681 | # get the administrator email | ||
| try: | ||||
| self.__admin_email = self.__parser.get("schain", self.__SCHAIN_ADMINISTRATOR_EMAIL) | ||||
| except: | ||||
| self.__admin_email = self.__DEFAULT_ADMINISTRATOR_EMAIL | ||||
| # get the server email | ||||
| try: | ||||
| self.__email_server = self.__parser.get("schain", self.__SCHAIN_EMAIL_SERVER) | ||||
| except: | ||||
| self.__email_server = self.__DEFAULT_EMAIL_SERVER | ||||
| def getEmailServer(self): | ||||
| return self.__email_server | ||||
| def getSenderEmail(self): | ||||
| return self.__sender_email | ||||
|
Miguel Valdez
|
r683 | def getSenderPass(self): | ||
| return self.__sender_pass | ||||
|
Miguel Valdez
|
r681 | def getAdminEmail(self): | ||
| return self.__admin_email | ||||
| class SchainNotify: | ||||
| """SchainNotify is an object used to send messages to an administrator about a Schain software. | ||||
| This object provides functions needed to send messages to an administrator about a Schain , for now | ||||
| only sendAlert, which sends an email to the site administrator found is ADMIN_EMAIL | ||||
| Usage example: | ||||
| import schainpy.admin | ||||
| try: | ||||
| adminObj = schainpy.admin.SchainNotify() | ||||
| adminObj.sendAlert('This is important!', 'Important Message') | ||||
| except schainpy.admin.SchainError, e: | ||||
| print e.getExceptionStr() | ||||
| Non-standard Python modules used: | ||||
| None | ||||
| Exceptions thrown: None - Note that SchainNotify tries every trick it knows to avoid | ||||
| throwing exceptions, since this is the class that will generally be called when there is a problem. | ||||
| Change history: | ||||
| Written by "Miguel Urco":mailto:miguel.urco@jro.igp.gob.pe Dec. 1, 2015 | ||||
| """ | ||||
| #constants | ||||
| def __init__(self): | ||||
| """__init__ initializes SchainNotify by getting some basic information from SchainDB and SchainSite. | ||||
| Note that SchainNotify tries every trick it knows to avoid throwing exceptions, since | ||||
| this is the class that will generally be called when there is a problem. | ||||
| Inputs: Existing SchainDB object, by default = None. | ||||
| Returns: void | ||||
| Affects: Initializes self.__binDir. | ||||
| Exceptions: None. | ||||
| """ | ||||
|
Miguel Valdez
|
r688 | |||
|
Miguel Valdez
|
r681 | # note that the main configuration file is unavailable | ||
| # the best that can be done is send an email to root using localhost mailserver | ||||
| confObj = SchainConfigure() | ||||
| self.__emailFromAddress = confObj.getSenderEmail() | ||||
|
Miguel Valdez
|
r683 | self.__emailPass = confObj.getSenderPass() | ||
|
Miguel Valdez
|
r681 | self.__emailToAddress = confObj.getAdminEmail() | ||
| self.__emailServer = confObj.getEmailServer() | ||||
| def sendEmail(self, email_from, email_to, subject='Error running ...', message="", subtitle="", filename="", html_format=True): | ||||
| r1129 | ||||
|
Miguel Valdez
|
r733 | if not email_to: | ||
| return 0 | ||||
| if not self.__emailServer: | ||||
| return 0 | ||||
| r1129 | log.success('Sending email to {}...'.format(email_to), 'System') | |||
|
Miguel Valdez
|
r681 | msg = MIMEMultipart() | ||
| msg['Subject'] = subject | ||||
| msg['From'] = "(Python SChain API): " + email_from | ||||
| msg['Reply-to'] = email_from | ||||
| msg['To'] = email_to | ||||
| # That is what u see if dont have an email reader: | ||||
| msg.preamble = 'SChainPy' | ||||
| if html_format: | ||||
| message = "<h1> %s </h1>" %subject + "<h3>" + subtitle.replace("\n", "</h3><h3>\n") + "</h3>" + message.replace("\n", "<br>\n") | ||||
| message = "<html>\n" + message + '</html>' | ||||
| # This is the textual part: | ||||
| part = MIMEText(message, "html") | ||||
| else: | ||||
| message = subject + "\n" + subtitle + "\n" + message | ||||
| part = MIMEText(message) | ||||
| msg.attach(part) | ||||
|
Juan C. Espinoza
|
r1126 | if filename and os.path.isfile(filename): | ||
|
Miguel Valdez
|
r681 | # This is the binary part(The Attachment): | ||
| part = MIMEApplication(open(filename,"rb").read()) | ||||
| part.add_header('Content-Disposition', | ||||
| 'attachment', | ||||
| filename=os.path.basename(filename)) | ||||
| msg.attach(part) | ||||
| # Create an instance in SMTP server | ||||
|
Miguel Valdez
|
r683 | try: | ||
| smtp = smtplib.SMTP(self.__emailServer) | ||||
| except: | ||||
| r1129 | log.error('Could not connect to server {}'.format(self.__emailServer), 'System') | |||
|
Miguel Valdez
|
r683 | return 0 | ||
|
Miguel Valdez
|
r681 | # Start the server: | ||
|
Juan C. Espinoza
|
r1126 | # smtp.ehlo() | ||
|
Miguel Valdez
|
r683 | if self.__emailPass: | ||
| smtp.login(self.__emailFromAddress, self.__emailPass) | ||||
|
Miguel Valdez
|
r681 | |||
| # Send the email | ||||
|
Miguel Valdez
|
r692 | try: | ||
| smtp.sendmail(msg['From'], msg['To'], msg.as_string()) | ||||
| except: | ||||
| r1129 | log.error('Could not send the email to {}'.format(msg['To']), 'System') | |||
|
Miguel Valdez
|
r692 | smtp.quit() | ||
| return 0 | ||||
|
Miguel Valdez
|
r681 | smtp.quit() | ||
| r1129 | ||||
| log.success('Email sent ', 'System') | ||||
|
Miguel Valdez
|
r681 | |||
|
Miguel Valdez
|
r683 | return 1 | ||
|
Miguel Valdez
|
r681 | |||
| def sendAlert(self, message, subject = "", subtitle="", filename=""): | ||||
| """sendAlert sends an email with the given message and optional title. | ||||
| Inputs: message (string), and optional title (string) | ||||
| Returns: void | ||||
| Affects: none | ||||
| Exceptions: None. | ||||
| """ | ||||
|
Miguel Valdez
|
r738 | |||
| if not self.__emailToAddress: | ||||
| return 0 | ||||
|
Miguel Valdez
|
r681 | print "***** Sending alert to %s *****" %self.__emailToAddress | ||
| # set up message | ||||
|
Miguel Valdez
|
r683 | sent=self.sendEmail(email_from=self.__emailFromAddress, | ||
| email_to=self.__emailToAddress, | ||||
| subject=subject, | ||||
| message=message, | ||||
| subtitle=subtitle, | ||||
| filename=filename) | ||||
|
Miguel Valdez
|
r681 | |||
|
Miguel Valdez
|
r738 | if not sent: | ||
| return 0 | ||||
|
Miguel Valdez
|
r681 | |||
|
Miguel Valdez
|
r738 | return 1 | ||
|
Miguel Valdez
|
r681 | |||
| def notify(self, email, message, subject = "", subtitle="", filename=""): | ||||
| """notify sends an email with the given message and title to email. | ||||
| Inputs: email (string), message (string), and subject (string) | ||||
| Returns: void | ||||
| Affects: none | ||||
| Exceptions: None. | ||||
| """ | ||||
| r1128 | if email is None: | |||
| email = self.__emailToAddress | ||||
|
Miguel Valdez
|
r681 | |||
| r1129 | self.sendEmail( | |||
| email_from=self.__emailFromAddress, | ||||
| email_to=email, | ||||
| subject=subject, | ||||
| message=message, | ||||
| subtitle=subtitle, | ||||
| filename=filename | ||||
| ) | ||||
|
Miguel Valdez
|
r681 | |||
|
Miguel Valdez
|
r688 | class SchainError(Exception): | ||
| """SchainError is an exception class that is thrown for all known errors using Schain Py lib. | ||||
|
Miguel Valdez
|
r681 | |||
| Usage example: | ||||
| import sys, traceback | ||||
| import schainpy.admin | ||||
| try: | ||||
| test = open('ImportantFile.txt', 'r') | ||||
| except: | ||||
| raise schainpy.admin.SchainError('ImportantFile.txt not opened!', | ||||
| traceback.format_exception(sys.exc_info()[0], | ||||
| sys.exc_info()[1], | ||||
| sys.exc_info()[2])) | ||||
| """ | ||||
|
Miguel Valdez
|
r688 | def __init__(self, strInterpretation, exceptionList=None): | ||
|
Miguel Valdez
|
r681 | """ __init__ gathers the interpretation string along with all information from sys.exc_info(). | ||
|
Miguel Valdez
|
r688 | Inputs: | ||
| strIntepretation - A string representing the programmer's interpretation of | ||||
| why the exception occurred | ||||
|
Miguel Valdez
|
r681 | |||
| exceptionList - a list of strings completely describing the exception. | ||||
| Generated by traceback.format_exception(sys.exc_info()[0], | ||||
| sys.exc_info()[1], | ||||
| sys.exc_info()[2]) | ||||
| Returns: Void. | ||||
| Affects: Initializes class member variables _strInterp, _strExcList. | ||||
| Exceptions: None. | ||||
| """ | ||||
|
Miguel Valdez
|
r688 | if not exceptionList: | ||
| exceptionList = traceback.format_exception(sys.exc_info()[0], | ||||
| sys.exc_info()[1], | ||||
| sys.exc_info()[2]) | ||||
|
Miguel Valdez
|
r681 | self._strInterp = strInterpretation | ||
| self._strExcList = exceptionList | ||||
| def getExceptionStr(self): | ||||
| """ getExceptionStr returns a formatted string ready for printing completely describing the exception. | ||||
| Inputs: None | ||||
| Returns: A formatted string ready for printing completely describing the exception. | ||||
| Affects: None | ||||
| Exceptions: None. | ||||
| """ | ||||
|
Miguel Valdez
|
r688 | excStr = '' | ||
|
Miguel Valdez
|
r681 | excStr = excStr + self._strInterp + '\n\n' | ||
| if self._strExcList != None: | ||||
| for item in self._strExcList: | ||||
| excStr = excStr + str(item) + '\n' | ||||
| return excStr | ||||
| def __str__(self): | ||||
|
Miguel Valdez
|
r688 | |||
|
Miguel Valdez
|
r681 | return(self.getExceptionStr()) | ||
| def getExceptionHtml(self): | ||||
| """ getExceptionHtml returns an Html formatted string completely describing the exception. | ||||
| Inputs: None | ||||
| Returns: A formatted string ready for printing completely describing the exception. | ||||
| Affects: None | ||||
| Exceptions: None. | ||||
| """ | ||||
| excStr = '<BR>The following Schain Python exception has occurred:\n<BR>' | ||||
| excStr = excStr + self._strInterp + '\n<BR>\n' | ||||
| if self._strExcList != None: | ||||
| for item in self._strExcList: | ||||
| excStr = excStr + str(item) + '\n<BR>' | ||||
| return excStr | ||||
| r1129 | class SchainWarning(Exception): | |||
| pass | ||||
|
Miguel Valdez
|
r681 | if __name__ == '__main__': | ||
|
Miguel Valdez
|
r688 | |||
|
Miguel Valdez
|
r681 | test = SchainNotify() | ||
| test.sendAlert('This is a message from the python module SchainNotify', 'Test from SchainNotify') | ||||
| print 'Hopefully message sent - check.' | ||||