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tryton/trytond/tools/misc.py
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#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 Lock
import logging
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."""
from trytond.modules import EGG_MODULES
root_path = os.path.dirname(os.path.dirname(__file__))
name3 = False
if subdir == 'modules':
module_name = name.split(os.sep)[0]
if module_name in EGG_MODULES:
ep = EGG_MODULES[module_name]
mod_path = os.path.join(ep.dist.location,
*ep.module_name.split('.')[:-1])
name3 = os.path.join(mod_path, name)
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, name3):
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:
logging.getLogger("web-service").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:
logging.getLogger("web-service").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.lock = Lock()
def __call__(self, function):
arg_names = inspect.getargspec(function)[0][2:]
def cached_result(self2, cursor=None, *args, **kwargs):
result = None
if isinstance(cursor, basestring):
Cache.reset(cursor, self.name)
self.lock.acquire()
try:
self._cache[cursor] = {}
finally:
self.lock.release()
return True
# Update named arguments with positional argument values
kwargs.update(dict(zip(arg_names, args)))
kwargs = kwargs.items()
kwargs.sort()
self.lock.acquire()
try:
self._cache.setdefault(cursor.dbname, {})
finally:
self.lock.release()
lower = None
self.lock.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.lock.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.lock.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.lock.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.lock.acquire()
try:
self._cache[cursor.dbname][key] = (result, time.time())
finally:
self.lock.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.lock.acquire()
try:
obj._cache[dbname] = {}
finally:
obj.lock.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):
"""
Recursive mod10
:param number: a number
:return: the same number completed with the recursive modulo base 10
"""
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)