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printers.py
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printers.py
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# -*- coding: utf-8 -*-
##############################################################################
#
# printers module for OpenERP, Allow to manage printers un OpenERP
# Copyright (C) 2011 SYLEAM Info Services (<http://www.Syleam.fr/>)
# Sylvain Garancher <[email protected]>
# Christophe CHAUVET <[email protected]>
#
# This file is a part of printers
#
# printers is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# printers is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################
from openerp.osv.orm import Model
from openerp.osv import fields
from openerp.osv.osv import except_osv
from tools.translate import _
import subprocess
import logging
import netsvc
import os
import sys
import cups
logger = logging.getLogger('printers')
class printers_server(Model):
"""
Manages printing servers
"""
_name = 'printers.server'
_description = 'List of printing servers'
_order = 'server'
_rec_name = 'server'
_columns = {
'server': fields.char('Server', size=64, required=True, help='Name of the server'),
'address': fields.char('Address', size=15, required=True, help='IP address or hostname of the server'),
'port': fields.integer('Port', help='Port of the server'),
'user': fields.char('User', size=32, help='User to log in on the server'),
'password': fields.char('Password', size=32, help='Password to log in on the server'),
'active': fields.boolean('Active', help='If checked, this server is useable'),
'printer_ids': fields.one2many('printers.list', 'server_id', 'Printers List', help='List of printers available on this server'),
}
def update_printers(self, cr, uid, ids, context=None):
for server in self.browse(cr, uid, ids, context=context):
kwargs={'host': 'localhost'}
if server.port:
kwargs['port'] = int(server.port)
# Update Printers
connection = cups.Connection(**kwargs)
printers = connection.getPrinters()
existing_printer = [printer.code for printer in server.printer_ids]
for name, printer_info in printers.iteritems():
if not name in existing_printer:
self.pool.get('printers.list').create(cr, uid, {
'name': printer_info['printer-info'],
'code': name,
'server_id': server.id,
})
return True
class printers_manufacturer(Model):
"""
Manage printer per manufacturer
"""
_name = 'printers.manufacturer'
_description = 'Printer manufacturer'
_order = 'name'
_columns = {
'name': fields.char('Name', size=32, required=True, help='Name of this manufacturer'),
'code': fields.char('Code', size=16, help='Code of this manufacturer'),
'website': fields.char('Website', size=128, help='Website address of this manufacturer'),
}
class printers_type(Model):
"""
Printer per type
"""
_name = 'printers.type'
_description = 'List of printers types'
_order = 'name'
_columns = {
'name': fields.char('Name', size=32, required=True, translate=True, help='Name of this type'),
'description': fields.char('Description', size=64, help='Description for this type'),
'printer_ids': fields.one2many('printers.list', 'type_id', 'Printers'),
}
class printers_list(Model):
"""
Manage printers
"""
_name = 'printers.list'
_description = 'List of printers per server'
_order = 'name'
_columns = {
'name': fields.char('Printer Name', size=64, required=True, help='Printer\'s name'),
'code': fields.char('Printer Code', size=64, required=True, help='Printer\'s code'),
'server_id': fields.many2one('printers.server', 'Server', required=True, help='Printer server'),
'type_id': fields.many2one('printers.type', 'Type', help='Printer type'),
'active': fields.boolean('Active', help='If checked, this link printer/server is active'),
'manufacturer_id': fields.many2one('printers.manufacturer', 'Manufacturer', help='Printer\'s manufacturer'),
'fitplot': fields.boolean('Fitplot', help='If checked, scales the print file to fit on the page'),
}
_defaults = {
'active': True,
'fitplot': False,
}
def _command(self, cr, uid, printer_id, print_type, print_data, context=None):
"""
Use stdin to send data to the printer with lp or lpr command
"""
# lp command is not implemented on Windows
if sys.platform.startswith('win32'):
raise except_osv(_('Error'), _('The actual Server OS is a Windows platform. ' \
'The printing lp command is not implemented. Unable to print !'))
# Retrieve printer
printer = self.browse(cr, uid, printer_id, context=context)
# Generate the command line
command = ['lp']
if printer.server_id.address:
# Add the server and port (if needed) in command line
if printer.server_id.port != 0:
command.append('-h %s:%s' % (printer.server_id.address, str(printer.server_id.port)))
else:
command.append('-h %s' % printer.server_id.address)
# Add the user login in command line
if printer.server_id.user:
command.append('-U %s' % printer.server_id.user)
# Add the printer code in command line
command.append('-d "%s"' % printer.code)
# Add the fitplot option in command line, if needed
if printer.fitplot:
command.append('-o fitplot')
# Create the command to send
command = ' '.join(command)
# Initialize printing data variable
print_commands = None
if print_type == 'report':
# Retrieve data to generate the report
report_data = self.pool.get('ir.actions.report.xml').read(cr, uid, print_data['report_id'], ['model', 'report_name'], context=context)
report_service = netsvc.LocalService('report.' + report_data['report_name'])
datas = {'ids': print_data['print_ids'], 'model': report_data['model']}
# Log the command to send
logger.info('Object to print : %s (%s)' % (datas['model'], repr(datas['ids'][0])))
logger.info('Report to print : %s (%s)' % (report_data['report_name'], print_data['report_id']))
# The commit is necessary for Jasper find the data in PostgreSQL
cr.commit()
# Generate the file to print
(print_commands, format) = report_service.create(cr, uid, print_data['print_ids'], datas, context=context)
elif print_type == 'file':
# Check if the file exists
if not os.path.exists(print_data['filename']):
raise except_osv(_('Error'), _('File %s does not exist !') % print_data['filename'])
# Log the file name to print
logger.info('File to print : %s' % print_data['filename'])
# Retrieve contents of the file
print_file = open(print_data['filename'], 'r')
print_commands = print_file.read()
print_file.close()
elif print_type == 'raw':
print_commands = print_data
else:
raise except_osv(_('Error'), _('Unknown command type, unable to print !'))
# Run the subprocess to send the commands to the server
logger.info('Command to execute : %s' % command)
sub_proc = subprocess.Popen(command, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
(result_stdout, result_stderr) = sub_proc.communicate(print_commands)
sub_proc.stdin.close()
# Log the return values
logger.info('return : %s' % sub_proc.returncode)
logger.info('stdout : %s' % result_stdout)
logger.info('stderr : %s' % result_stderr)
# Remove the file and free the memory
del sub_proc
del print_commands
# Operation successful, return True
return True
def send_printer(self, cr, uid, printer_id, report_id, print_ids, context=None):
"""
Sends a report to a printer
"""
return self._command(cr, uid, printer_id, 'report', {'report_id': report_id, 'print_ids': print_ids}, context=context)
def print_file(self, cr, uid, printer_id, filename, context=None):
"""
Sends a file to a printer
"""
return self._command(cr, uid, printer_id, 'file', {'filename': filename}, context=context)
def print_raw_data(self, cr, uid, printer_id, data, context=None):
"""
Sends a file to a printer
"""
return self._command(cr, uid, printer_id, 'raw', data, context=context)
class printers_label(Model):
"""
Label board
"""
_name = 'printers.label'
_description = 'Label board'
_columns = {
'type_id': fields.many2one('printers.type', 'Printer Type', required=True, help='Type of printer'),
'name': fields.char('Name', size=64, required=True, help='Name of the label'),
'width': fields.integer('Width', help='Width of the label, in millimeters'),
'height': fields.integer('Height', help='Height of the label, in millimeters'),
}
class printers_language(Model):
"""
Language support per printer
"""
_name = 'printers.language'
_description = 'Printer language'
_columns = {
'name': fields.char('Name', size=32, required=True, translate=True, help='Name of the language'),
'code': fields.char('Code', size=16, required=True, help='Code of the language'),
}
# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: