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tryton/trytond/tools/misc.py
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Python

#This file is part of Tryton. The COPYRIGHT file at the top level of this repository contains the full copyright notices and license terms.
# -*- coding: utf-8 -*-
"""
Miscelleanous tools used by tryton
"""
import os, time, sys
import inspect
from trytond.config import CONFIG
import socket
import zipfile
from trytond import pooler
from threading import Semaphore
try:
import cStringIO as StringIO
except ImportError:
import StringIO
def find_in_path(name):
if os.name == "nt":
sep = ';'
else:
sep = ':'
path = [directory for directory in os.environ['PATH'].split(sep)
if os.path.isdir(directory)]
for directory in path:
val = os.path.join(directory, name)
if os.path.isfile(val) or os.path.islink(val):
return val
return None
def find_pg_tool(name):
if CONFIG['pg_path'] and CONFIG['pg_path'] != 'None':
return os.path.join(CONFIG['pg_path'], name)
else:
return find_in_path(name)
def exec_pg_command(name, *args):
prog = find_pg_tool(name)
if not prog:
raise Exception('Couldn\'t find %s' % name)
args2 = (os.path.basename(prog),) + args
return os.spawnv(os.P_WAIT, prog, args2)
def exec_pg_command_pipe(name, *args):
prog = find_pg_tool(name)
if not prog:
raise Exception('Couldn\'t find %s' % name)
if os.name == "nt":
cmd = '"' + prog + '" ' + ' '.join(args)
else:
cmd = prog + ' ' + ' '.join(args)
return os.popen2(cmd, 'b')
def exec_command_pipe(name, *args):
prog = find_in_path(name)
if not prog:
raise Exception('Couldn\'t find %s' % name)
if os.name == "nt":
cmd = '"'+prog+'" '+' '.join(args)
else:
cmd = prog+' '+' '.join(args)
return os.popen2(cmd, 'b')
def file_open(name, mode="r", subdir='modules'):
"""Open a file from the root dir, using a subdir folder."""
root_path = os.path.dirname(os.path.dirname(__file__))
if subdir:
if subdir == 'modules'\
and (name.startswith('ir' + os.sep) \
or name.startswith('workflow' + os.sep) \
or name.startswith('res' + os.sep) \
or name.startswith('webdav' + os.sep)):
name = os.path.join(root_path, name)
else:
name = os.path.join(root_path, subdir, name)
else:
name = os.path.join(root_path, name)
# Check for a zipfile in the path
head = name
zipname = False
name2 = False
while True:
head, tail = os.path.split(head)
if not tail:
break
if zipname:
zipname = os.path.join(tail, zipname)
else:
zipname = tail
if zipfile.is_zipfile(head+'.zip'):
zfile = zipfile.ZipFile(head+'.zip')
try:
return StringIO.StringIO(zfile.read(os.path.join(
os.path.basename(head), zipname).replace(
os.sep, '/')))
except:
name2 = os.path.normpath(os.path.join(head + '.zip', zipname))
for i in (name2, name):
if i and os.path.isfile(i):
return file(i, mode)
raise IOError, 'File not found : '+str(name)
def email_send(email_from, email_to, subject, body, email_cc=None,
email_bcc=None, reply_to=False, tinycrm=False):
"""Send an email."""
if not email_cc:
email_cc = []
if not email_bcc:
email_bcc = []
import smtplib
from email.MIMEText import MIMEText
from email.Header import Header
from email.Utils import formatdate, COMMASPACE
msg = MIMEText(body or '', _charset='utf-8')
msg['Subject'] = Header(subject.decode('utf8'), 'utf-8')
msg['From'] = email_from
del msg['Reply-To']
if reply_to:
msg['Reply-To'] = msg['From']+', '+reply_to
msg['To'] = COMMASPACE.join(email_to)
if email_cc:
msg['Cc'] = COMMASPACE.join(email_cc)
if email_bcc:
msg['Bcc'] = COMMASPACE.join(email_bcc)
msg['Date'] = formatdate(localtime=True)
if tinycrm:
msg['Message-Id'] = '<' + str(time.time()) + '-tinycrm-' + \
str(tinycrm) + '@' + socket.gethostname() + '>'
try:
smtp = smtplib.SMTP()
smtp.connect(CONFIG['smtp_server'])
if CONFIG['smtp_user'] or CONFIG['smtp_password']:
smtp.login(CONFIG['smtp_user'], CONFIG['smtp_password'])
smtp.sendmail(email_from, email_to + email_cc + email_bcc,
msg.as_string())
smtp.quit()
except Exception, exp:
from trytond.netsvc import Logger, LOG_ERROR
Logger().notify_channel("web-service", LOG_ERROR, str(exp))
return True
def email_send_attach(email_from, email_to, subject, body, email_cc=None,
email_bcc=None, reply_to=False, attach=None,
tinycrm=False):
"""Send an email."""
if not email_cc:
email_cc = []
if not email_bcc:
email_bcc = []
if not attach:
attach = []
import smtplib
from email.MIMEText import MIMEText
from email.MIMEBase import MIMEBase
from email.MIMEMultipart import MIMEMultipart
from email.Header import Header
from email.Utils import formatdate, COMMASPACE
from email import Encoders
msg = MIMEMultipart()
msg['Subject'] = Header(subject.decode('utf8'), 'utf-8')
msg['From'] = email_from
del msg['Reply-To']
if reply_to:
msg['Reply-To'] = reply_to
msg['To'] = COMMASPACE.join(email_to)
if email_cc:
msg['Cc'] = COMMASPACE.join(email_cc)
if email_bcc:
msg['Bcc'] = COMMASPACE.join(email_bcc)
if tinycrm:
msg['Message-Id'] = '<' + str(time.time()) + '-tinycrm-' + \
str(tinycrm) + '@' + socket.gethostname()+'>'
msg['Date'] = formatdate(localtime=True)
msg.attach( MIMEText(body or '', _charset='utf-8') )
for (fname, fcontent) in attach:
part = MIMEBase('application', "octet-stream")
part.set_payload( fcontent )
Encoders.encode_base64(part)
part.add_header('Content-Disposition',
'attachment; filename="%s"' % (fname,))
msg.attach(part)
try:
smtp = smtplib.SMTP()
smtp.connect(CONFIG['smtp_server'])
if CONFIG['smtp_user'] or CONFIG['smtp_password']:
smtp.login(CONFIG['smtp_user'], CONFIG['smtp_password'])
smtp.sendmail(email_from, email_to + email_cc + email_bcc,
msg.as_string())
smtp.quit()
except Exception, exp:
from trytond.netsvc import Logger, LOG_ERROR
Logger().notify_channel("web-service", LOG_ERROR, str(exp))
return True
def sms_send(user, password, api_id, text, to):
"text must be latin-1 encoded"
import urllib
params = urllib.urlencode({
'user': user,
'password': password,
'api_id': api_id,
'text': text,
'to':to,
})
#urllib.urlopen("http://api.clickatell.com/http/sendmsg", params)
urllib.urlopen("http://196.7.150.220/http/sendmsg", params)
return True
def find_language_context(args):
res = 'en_US'
for arg in args:
if isinstance(arg, dict):
res = arg.get('language', 'en_US')
return res
class Cache(object):
"""
Use it as a decorator of the function you plan to cache
Timeout: 0 = no timeout, otherwise in seconds
"""
_cache_instance = []
def __init__(self, name, timeout=3600, max_len=1024):
self.timeout = timeout
self.max_len = max_len
self._cache = {}
self._cache_instance.append(self)
self.name = name
self.timestamp = None
self.semaphore = Semaphore()
def __call__(self, function):
arg_names = inspect.getargspec(function)[0][2:]
def cached_result(self2, cursor=None, *args, **kwargs):
result = None
if isinstance(cursor, str):
Cache.reset(cursor, self.name)
self.semaphore.acquire()
try:
self._cache[cursor] = {}
finally:
self.semaphore.release()
return True
# Update named arguments with positional argument values
kwargs.update(dict(zip(arg_names, args)))
kwargs = kwargs.items()
kwargs.sort()
self.semaphore.acquire()
try:
self._cache.setdefault(cursor.dbname, {})
finally:
self.semaphore.release()
lower = None
self.semaphore.acquire()
try:
if len(self._cache[cursor.dbname]) > self.max_len:
mintime = time.time() - self.timeout
for key in self._cache[cursor.dbname].keys():
last_time = self._cache[cursor.dbname][key][1]
if mintime > last_time:
del self._cache[cursor.dbname][key]
else:
if not lower or lower[1] > last_time:
lower = (key, last_time)
if len(self._cache[cursor.dbname]) > self.max_len and lower:
del self._cache[cursor.dbname][lower[0]]
finally:
self.semaphore.release()
# Work out key as a tuple of ('argname', value) pairs
key = (id(self2), str(kwargs))
# Check cache and return cached value if possible
self.semaphore.acquire()
try:
if key in self._cache[cursor.dbname]:
(value, last_time) = self._cache[cursor.dbname][key]
mintime = time.time() - self.timeout
if self.timeout <= 0 or mintime <= last_time:
result = value
finally:
self.semaphore.release()
if not result:
# Work out new value, cache it and return it
# Should copy() this value to avoid futur modf of the cacle ?
result = function(self2, cursor, **dict(kwargs))
self.semaphore.acquire()
try:
self._cache[cursor.dbname][key] = (result, time.time())
finally:
self.semaphore.release()
return result
return cached_result
@staticmethod
def clean(dbname):
if not CONFIG['multi_server']:
return
cursor = pooler.get_db(dbname).cursor()
cursor.execute('SELECT "timestamp", "name" FROM ir_cache')
timestamps = {}
for timestamp, name in cursor.fetchall():
timestamps[name] = timestamp
cursor.close()
for obj in Cache._cache_instance:
if obj.name in timestamps:
if not obj.timestamp or timestamps[obj.name] > obj.timestamp:
obj.timestamp = timestamps[obj.name]
obj.semaphore.acquire()
try:
obj._cache[dbname] = {}
finally:
obj.semaphore.release()
@staticmethod
def reset(dbname, name):
if not CONFIG['multi_server']:
return
cursor = pooler.get_db(dbname).cursor()
cursor.execute('SELECT name FROM ir_cache WHERE name = %s',
(name,))
if cursor.rowcount:
cursor.execute('UPDATE ir_cache SET "timestamp" = now() '\
'WHERE name = %s', (name,))
else:
cursor.execute('INSERT INTO ir_cache ("timestamp", "name") ' \
'VALUES (now(), %s)', (name,))
cursor.commit()
cursor.close()
def mod10r(number):
"""
Input number : account or invoice number
Output return: the same number completed with the recursive mod10
key
"""
codec = [0, 9, 4, 6, 8, 2, 7, 1, 3, 5]
report = 0
result = ""
for digit in number:
result += digit
if digit.isdigit():
report = codec[ (int(digit) + report) % 10 ]
return result + str((10 - report) % 10)