#!/usr/bin/env python
#
# Copyright (C) 2003 Gre7g Luterman <gre7g@wolfhome.com>
#
# This file is part of TMDA.
#
# TMDA is free software; you can redistribute it and/or modify it
# under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.  A copy of this license should
# be included in the file COPYING.
#
# TMDA 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 General Public License
# for more details.
#
# You should have received a copy of the GNU General Public License
# along with TMDA; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

"Local config file editor for tmda-cgi."

import os
import pickle
import re
import CgiUtil
import Template
from TMDA import Defaults
from TMDA import FilterParser

def DomainSort(a, b):
  "Comparison function for domain sorter."
  a = a.split("@", 1)
  if len(a) < 2: a.append("")
  a.reverse()
  b = b.split("@", 1)
  if len(b) < 2: b.append("")
  b.reverse()
  return cmp(" ".join(a), " ".join(b))

def Show():
  "Edit any plaintext list file."

  # Load the display template
  T = Template.Template("editlist.html", PVars = PVars)
  NoneList = T["NoneList"]
  List = ""

  # Find pre-calculated buttons
  Filename = os.path.join \
  (
    PVars.ThemesDir, PVars[("General", "Theme")], "subtopics.p"
  )
  F = open(Filename)
  SysButtons = pickle.load(F)
  F.close()

  # Load filters, find files used
  Buttons = {}
  for Filters in [Defaults.FILTER_INCOMING, Defaults.FILTER_OUTGOING]:
    Parser = FilterParser.FilterParser()
    Parser.read(CgiUtil.ExpandUser(Filters))
    for Test in Parser.filterlist:
      if Test[0] in ["from-file", "to-file", "body-file", "headers-file"]:
        if CgiUtil.TestTextFilePath(CgiUtil.ExpandUser(Test[2])):
          Filename = os.path.split(Test[2])[1].lower()
          if SysButtons.has_key(Filename):
            Buttons[CgiUtil.ExpandUser(Test[2])] = \
              (Filename, SysButtons[Filename])
          else:
            Buttons[CgiUtil.ExpandUser(Test[2])] = \
              (Filename, SysButtons["other"])
  Files = Buttons.keys()
  Files.sort()

  if len(Files):
    # Which filter are we editing?
    if Form["cmd"].value == "editlist":
      EditFile = Files[0]
    else:
      EditFile = Files[int(Form["cmd"].value[8:])]

    # Get file
    T["FilePath"] = EditFile
    if CgiUtil.TestTextFilePath(EditFile):
      try:
        F = open(EditFile)
        List = F.read()
        F.close()
      except IOError:
        pass
    else:
      List = "(File is not accessible.)"

  else:
    # The user has no text-based lists defined in their filters.
    T["NoLists"]
    NoneList.Add()

  # Generate dynamic list of Lists to edit in the sidebar
  HTML = ""
  CurrentListEntry = T['CurrentListEntry']
  ListEntry = T['ListEntry']
  for FileNum in range(len(Files)):
    File = Files[FileNum]
    listDict = T.Dict
    listDict['Theme'] = Template.Template.Dict["ThemeDir"]
    if File == EditFile:
      listDict["listGraphicFilename"] = Buttons[File][1]['hfn']
      listDict["listGraphicHeight"] = Buttons[File][1]['height']
      listDict["listGraphicWidth"] = Buttons[File][1]['width']
      listDict["listGraphicAlt"] = Buttons[File][0]
      listDict["listName"] = os.path.basename(File)
      HTML += CurrentListEntry % listDict
      T["ListNum"] = FileNum
    else:
      listDict["listLink"] = "%s?cmd=editlist%d&SID=%s" % (os.environ["SCRIPT_NAME"], FileNum, PVars.SID )
      listDict["listGraphicFilename"] = Buttons[File][1]['fn']
      listDict["listGraphicHeight"] = Buttons[File][1]['height']
      listDict["listGraphicWidth"] = Buttons[File][1]['width']
      listDict["listGraphicAlt"] = Buttons[File][0]
      listDict["listName"] = os.path.basename(File)
      HTML += ListEntry % listDict

  T["Lists"] = HTML

  # Any subcommand?
  if Form.has_key("subcmd"):
    if Form["subcmd"].value == "sort":
      List = List.split("\n")
      List.sort(lambda a, b: cmp(a.upper(), b.upper()))
      List = "\n".join(List)
    elif Form["subcmd"].value == "domsort":
      List = List.split("\n")
      List.sort(DomainSort)
      List = "\n".join(List)
    else:
      if Form.has_key("list"):
        List = Form["list"].value
      elif Form["subcmd"].value == "save":
        List = ""

      # Make sure the list is properly formatted
      List = re.sub("\r\n", "\n", List)
      List = re.sub("\n*$", "", List)
      List = re.sub("^\n*", "", List)
      List += "\n"

      if CgiUtil.TestTextFilePath(EditFile):
        try:
          F = open(EditFile, "w")
          F.write(List)
          F.close()
        except IOError, ErrStr:
          CgiUtil.TermError("Unable to save filter list.",
          "Insufficient privileges", "save list", "%s<br>%s" % (ErrStr,
          CgiUtil.FileDetails("Filter list", EditFile)),
          "Change file permissions on <tt>%s</tt>" % EditFile)

  # Display template
  T["FileContents"] = List
  print T