import datetime
import signal
import socket
import tempfile
import random
import string
import platform
from fileutils import abspath, write_file, parse_version
from settings import global_settings
from admin import add_path_first, create_missing_folders, create_missing_app_folders
from globals import current

from custom_import import custom_import_install
from contrib.simplejson import dumps

# Security Checks: validate URL and session_id here,
# accept_language is validated in languages

# pattern used to validate client address
regex_client = re.compile('[\w\-:]+(\.[\w\-]+)*\.?')  # ## to account for IPV6

version_info = open(abspath('VERSION', gluon=True), 'r')
web2py_version = parse_version(version_info.read().strip())
version_info.close()
global_settings.web2py_version = web2py_version

try:
    import rocket
except:
    if not global_settings.web2py_runtime_gae:
        logger.warn('unable to import Rocket')

                # ##################################################

                if not os.path.exists(request.folder):
                    if request.application == rewrite.thread.routes.default_application and request.application != 'welcome':
                        request.application = 'welcome'
                        redirect(Url(r=request))
                    elif rewrite.thread.routes.error_handler:
                        _handler = rewrite.thread.routes.error_handler
                        redirect(Url(_handler['application'],
                                     _handler['controller'],
                                     _handler['function'],
                                     args=request.application))
                    else:
                        raise HTTP(404, rewrite.thread.routes.error_message \
                                       % 'invalid request',
                                   web2py_error='invalid application')
                request.url = Url(r=request, args=request.args,
                                       extension=request.raw_extension)

                # ##################################################
                # build missing folders
                # ##################################################

                parse_get_post_vars(request, environ)

                # ##################################################
                # expose wsgi hooks for convenience
                # ##################################################

                request.wsgi.environ = environ_aux(environ,request)
                request.wsgi.start_response = \
                    lambda status='200', headers=[], \
                    exec_info=None, response=response: \
                    start_response_aux(status, headers, exec_info, response)
                request.wsgi.middleware = \
                    lambda *a: middleware_aux(request,response,*a)

                # ##################################################
                # load cookies
                # ##################################################

                if request.env.http_cookie:
                    try:

                session.connect(request, response)

                # ##################################################
                # set no-cache headers
                # ##################################################

                response.headers['Content-Type'] = \
                    contenttype('.'+request.extension)
                response.headers['Cache-Control'] = \
                    'no-store, no-cache, must-revalidate, post-check=0, pre-check=0'
                response.headers['Expires'] = \
                    time.strftime('%a, %d %b %Y %H:%M:%S GMT', time.gmtime())
                response.headers['Pragma'] = 'no-cache'

                # ##################################################

                ticket = e.log(request) or 'unknown'
                if response._custom_rollback:
                    response._custom_rollback()
                else:
                    BaseAdapter.close_all_instances('rollback')

                http_response = \
                    HTTP(500, rewrite.thread.routes.error_message_ticket % \
                             dict(ticket=ticket),
                         web2py_error='ticket %s' % ticket)

        except:

            if request.body:
                request.body.close()

                else:
                    BaseAdapter.close_all_instances('rollback')
            except:
                pass
            e = RestrictedError('Framework', '', '', locals())
            ticket = e.log(request) or 'unrecoverable'
            http_response = \
                HTTP(500, rewrite.thread.routes.error_message_ticket \
                         % dict(ticket=ticket),
                     web2py_error='ticket %s' % ticket)

    finally:
        if response and hasattr(response, 'session_file') \
                and response.session_file:
            response.session_file.close()
#         if global_settings.debugging:
#             import gluon.debug
#             gluon.debug.stop_trace()

    session._unlock(response)
    http_response, new_environ = rewrite.try_rewrite_on_error(
        http_response, request, environ, ticket)
    if not http_response:
        return wsgibase(new_environ,responder)
    if global_settings.web2py_crontype == 'soft':
        newcron.softcron(global_settings.applications_parent).start()
    return http_response.to(responder)


def save_password(password, port):
    """
    used by main() to save the password in the parameters_port.py file.
    """

    password_file = abspath('parameters_%i.py' % port)

        port=8000,
        password='',
        pid_filename='httpserver.pid',
        log_filename='httpserver.log',
        profiler_filename=None,
        ssl_certificate=None,
        ssl_private_key=None,
        ssl_ca_certificate=None,
        min_threads=None,
        max_threads=None,
        server_name=None,
        request_queue_size=5,
        timeout=10,
        shutdown_timeout=None, # Rocket does not use a shutdown timeout
        path=None,

            logger.warning('Python "ssl" module unavailable. SSL is OFF')
        elif not os.path.exists(ssl_certificate):
            logger.warning('unable to open SSL certificate. SSL is OFF')
        elif not os.path.exists(ssl_private_key):
            logger.warning('unable to open SSL private key. SSL is OFF')
        else:
            sock_list.extend([ssl_private_key, ssl_certificate])
            if ssl_ca_certificate:
                sock_list.append(ssl_ca_certificate)
            
            logger.info('SSL is ON')
        app_info = {'wsgi_app': appfactory(wsgibase,
                                           log_filename,
                                           profiler_filename) }

        self.server = rocket.Rocket(interfaces or tuple(sock_list),
                                    method='wsgi',

        """
        newcron.stopcron()
        self.server.stop(stoplogging)
        try:
            os.unlink(self.pid_filename)
        except:
            pass