# -*- coding: utf-8
# -*- Mode: Python; py-indent-offset: 4 -*-
# $Id$
#
# Copyright (c) 2006, Vahur Rebas <vahur@tlu.ee>
#
# Permission to use, copy, modify, and distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
           

""" Main module """

__version__ = "$Revision$"[11:-2]

import Globals
from Globals import Acquisition, Persistent
from Acquisition import aq_base, aq_inner, aq_parent, Explicit
from AccessControl import ClassSecurityInfo, getSecurityManager
from OFS.Folder import Folder
from Products.PageTemplates.PageTemplateFile import PageTemplateFile
from zope.interface import implements

import Package
from Session import Session
from utils import gen_key
from interfaces import ICaldoz

import logging
LOG = logging.getLogger('Caldoz')

class Caldoz(Folder, Persistent, Explicit):
    """ Caldoz main class """

    meta_type = 'Caldoz'
    security = ClassSecurityInfo()
    security.declareObjectPublic()
    implements(ICaldoz)

    manage_options = Folder.manage_options

    # setup methods

    security.declarePrivate('manage_afterAdd')
    def manage_afterAdd(self, item, container):
        self.setupTempFolder()

    def setupTempFolder(self):
        """ setup temporary folder for sessions """
        self.manage_addProduct['TemporaryFolder'].constructTemporaryFolder('sessions', 'Sessions')
        
    def getSkinsFolderName(self):
        return "portal_skins"

    # general methods 

    def caldoz_root(self):
        """ root """
        return self

    def getRelativeURL(self, content):
        """ getthe URL for an object, relative to the root folder """
        return '/'.join( self.getRelativeContentPath(content) )

    def getRelativeContentPath(self, content):
        """ Get the path for an object, relative to the iva root. """
        portal_path_length = len( self.caldoz_root().getPhysicalPath() )
        content_path = content.getPhysicalPath()
        return content_path[portal_path_length:]

    # ...

    def checkPermission(self):
        """ check permission """
        sm = getSecurityManager()
        return sm.checkPermission('Manager portal', self)

    def managerHandler(self, REQUEST=None, package_id=None, reloadButton=None):
        """ manager handler """
        if reloadButton and package_id:
            pac = getattr(self, package_id)
            pac.manage_afterAdd(pac, self)
        if REQUEST is not None:
            return REQUEST.RESPONSE.redirect('caldoz_manager.html')
        return "reloaded"


    # methods related with package

    security.declareProtected('View', 'addNewPackage')
    def addNewPackage(self, REQUEST, file):
        """ add new package. file is zipfile 
            used by caldoz directly 
        """
        import zipfile
        import tempfile
        fname = tempfile.mkstemp()[1]
        f = open(fname, "w+b")
        f.write(file.read())
        f.close()
        if not zipfile.is_zipfile(fname):
            raise 'Error: file is not a zip file'
        file.seek(0)
        pac = Package.Package(file, clientID="browser")
        self._setObject(pac.id, pac)
        import os
        os.unlink(fname)
        return REQUEST.RESPONSE.redirect(pac.id)

    def addNewPackage2(self, file=None, clientid=''):
        """ add new package, return credentials 
            file is base64 encoded string
            can be called from remote clients
        """
        import zipfile
        import tempfile
        import base64
        error = 0
        error_explain = 'Upload was successful'
        fname = tempfile.mkstemp()[1]
        LOG.info('fname:'+fname)
        f = open(fname, "w+b")
        f.write(file.read())
        f.close()
        if not zipfile.is_zipfile(fname):
            error = 1
        file.seek(0)
        pac = None
        if not error:
            LOG.info('will create package')
            pac = Package.Package(file, clientID=clientid)
            self._setObject(pac.id, pac)
        else:
            LOG.info('not creating package'+str(error))
        import os
        os.unlink(fname)
        if error == 1:
            error_explain = 'Uploaded file was not a Zip file.'
        LOG.info(error)
        ntitle = pac.getMainTitles()[0][0]
        msg = """
<response>
    <id>%s</id>
    <status>%s</status>
    <statusText>%s</statusText>
    <name>%s</name>
    <public>%s</public>
    <private>%s</private>
</response>
        """ % ( pac.getId(), str(error), error_explain, ntitle, pac._getPublicKey(), pac._getPrivateKey() )
        return msg

    security.declareProtected('View', 'getPackages')
    def getPackages(self):
        return self.objectValues('CaldozPackage')

    def getTOC(self, session_id):
        """ getTOC """
        print "getTOC", session_id
        sess = getattr(self.sessions, session_id, None)
        if sess is None: return "NO TOC FOR YOU"
        pid = sess.package_id
        p = getattr(self, pid, None)
        if p is not None and (p._getPublicKey() == sess.access_key or p._getPrivateKey() == sess.access_key):
            return p.getTOC()
        return "NO TOC FOR YOU!"

    def getNavigation(self, session_id):
        """ get navigation """
        sess = getattr(self.sessions, session_id, None)
        if sess is None: return "NO NAVIGATION"
        pid = sess.package_id
        p = getattr(self, pid, None)
        if p is None: return "Cannot find navigation"
        if p._getPublicKey() != sess.access_key and p._getPrivateKey() != sess.access_key:
            return "Invalid access key"
        msg = """<input type="button" value="back" onclick="javascript:prev_chapter()" name="back_button" />"""
        msg += """<input type="button" value="exit" onclick="javascript:do_exit()" name="exit_button" />"""
        msg += """<input type="button" value="next" onclick="javascript:next_chapter()" name="next_button" />"""
        msg += """<input type="hidden" value="curr_loc" name="curr_loc" id="curr_loc" />"""
        return msg

    def getCookie(self, REQUEST, session_key, came_from):
        """ get cookie """
        REQUEST.RESPONSE.setCookie('session_key', 
                session_key, 
                expires='Wed, 19 Feb 2020 14:00:00 GMT')
        print "================================== WE SET A COOKIE!!! =========="
        return REQUEST.RESPONSE.redirect(came_from)

    security.declareProtected('Manager portal', 'manager_login')
    def manager_login(self, REQUEST):
        """ manager logs in """
        uname = str(getSecurityManager().getUser())
        sess_id = gen_key('session')
        s = Session(sess_id, None, None, uname)
        if self.checkPermission():
            s._setManager(True)
        self.sessions._setObject(s.id, s)
        return REQUEST.RESPONSE.redirect('getCookie?session_key='+sess_id+'&came_from='+self.absolute_url()+'/caldoz_manager.html')

    def initialize_session(self, package_id=None, access_key=None, uname='Anonymous User'):
        """ initialize session. If someone knows the key, go ahead """
        p = None
        pid = package_id
        if pid is not None:
            p = getattr(self, package_id)
        else:
            for x in self.getPackages():
                if x._getPrivateKey() == access_key:
                    p = x
                    pid = x.getId()
                    break
        session_id = None
        if p._getPublicKey() == access_key or p._getPrivateKey() == access_key:
            # TODO: create session here
            session_id = gen_key('session')
            s = Session(session_id, pid, access_key, uname)
            self.sessions._setObject(s.id, s)
        return session_id

    def redirectToPackage(self, REQUEST):
        """ redirect to package """
        sess_key = REQUEST.get('session_key', None)
        if sess_key is None:
            return REQUEST.RESPONSE.redirect(self.absolute_url())
        sess = getattr(self.sessions, sess_key, None)
        if sess is None:
            return REQUEST.RESPONSE.redirect(self.absolute_url())
        return REQUEST.RESPONSE.redirect(self.caldoz_root().absolute_url()+'/'+sess.package_id)

Globals.InitializeClass(Caldoz)

def manage_addCaldoz(self, REQUEST, id):
    """ instantiate Caldoz """
    caldoz = Caldoz(id)
    self._setObject(id, caldoz)
    if REQUEST:
        return self.manage_main(self, REQUEST)

manage_addCaldozForm = PageTemplateFile('skins/addCaldozForm.pt', globals())

# EOF