File: nicotine-import-winconfig

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nicotine 1.2.6%2Bdfsg-1
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#!/usr/bin/python

# Import the windows slsk config files in Nicotine.
# Geert Kloosterman <geertk@ai.rug.nl>

from struct import unpack
import getopt
import sys
import os
import string
import imghdr

try:
    from pynicotine.config import *
except ImportError,e:
    print """Error: Cannot find the Nicotine config module.

If you're running Nicotine from a src tarball, copy this program to the
source directory and try running it from there."""
    sys.exit(1)

def usage():
    print """Usage: nicotine-import-winconfig [OPTIONS] <path_to_the_winslsk_files>

  -c file, --config=file  Use non-default nicotine configuration file to write to
  -q, --queue             Import the queue  
  -u, --userlist          Import the userlist
  -l, --login             Import the login information
  -C, --chatrooms         Import the list of autojoined chatrooms
  -b, --banned            Import the list of banned users
  -i  --userinfo          Import the userinfo and the image
  -h, --help              Print this help message and exit

If no configuration items are specified all are imported.

Run this script when Nicotine is _not_ running.
See README.import-winconfig from the Nicotine distribution for more info.

Please report any problems to hyriand on soulseek or
<hyriand@thegraveyard.org>."""

def parse_args():
    global opt
    opt = {}
    try:
        opts, args = getopt.getopt(sys.argv[1:],
                                   "c:qulCbih",
                                   ["config=", "queue", "userlist", "login",
                                    "chatrooms", "banned", "userinfo", "help"])
    except getopt.GetoptError:
        usage()
        sys.exit(1)
    # check for winpath
    if len(args) < 1:
        usage()
        sys.exit(1)
    slskdir = args[0]
    check_slskdir(slskdir)
    opt['slskdir'] = slskdir

    # defaults
    opt['config']  = os.path.join(os.path.expanduser("~"),'.nicotine/config')
    queue = userlist = login = chatrooms = banned = userinfo = None
    for o, a in opts:
        if o in ("-c", "--config"):
            opt['config'] = a
        if o in ("-q", "--queue"):
            queue = 1
        if o in ("-u", "--userlist"):
            userlist = 1
        if o in ("-l", "--login"):
            login = 1
        if o in ("-C", "--chatrooms"):
            chatrooms = 1
        if o in ("-b", "--banned"):
            banned = 1
        if o in ("-i", "--userinfo"):
            userinfo = 1
        if o in ("-h", "--help"):
            usage()
            sys.exit()
    # import all when none specified
    if not (queue or userlist or login or chatrooms or banned or userinfo):
        queue = userlist = login = chatrooms = banned = userinfo = 1
    opt['queue']     = queue
    opt['userlist']  = userlist
    opt['login']     = login
    opt['chatrooms'] = chatrooms
    opt['banned']    = banned
    opt['userinfo']  = userinfo

       
def check_slskdir(slskdir):
    # we check if the file queue2.cfg exists under the slsk dir
    queue2path = os.path.join(slskdir, 'queue2.cfg')
    
    if not os.access(queue2path, os.F_OK):
        print "nicotine-import-winconfig: Error: Could not find \"queue2.cfg\" in \"%s\"" % (slskdir)
        print "Are you sure you've supplied the right path?"
        sys.exit(1)


def winpath(file):
    global opt
    return os.path.join(opt['slskdir'], file)


def get_downloads(fname):
    """Returns the list of downloads in the queue2.cnf file

The windows slsk queue2.cnf file format:

- little-endian, wordsize=4
- The file starts with 3 ints (4bytes per int).
- First 2 ints are unknown
- The 3rd one is the number of entries in the file

Then for each download entry:

- The length of the username, followed by the username
- The length of the remote filename, followed by the remote filename
- The length of the local dir, followed by the local dir

The file can contain some unknown stuff at the end."""
    
    infile = open(fname, 'r')
    intsize = 4
    downloads = []

    str = infile.read(3*intsize)

    i1, i2, n_entries = unpack("iii", str)

    for i in range(n_entries):
        length = unpack("i", infile.read(intsize))[0]
        uname = infile.read(length)
        length = unpack("i", infile.read(intsize))[0]
        remfile = infile.read(length)
        length = unpack("i", infile.read(intsize))[0]
        localdir = infile.read(length)
        downloads.append([uname, remfile, localdir])
        
    infile.close()
    return downloads
    

def get_user_and_pass(fname):
    """Returns a (user,passwd) tuple. 

File format of login.cfg (see also get_downloads):

- two unknown ints at the beginning
- the number of bytes of the username, followed by the username
- the number of bytes from the passwd, followed by the passwd
- followed by some undetermined bytes"""


    infile = open(fname, 'r')
    intsize = 4
    downloads = []

    str = infile.read(3*intsize)

    i1, i2, length = unpack("iii", str)

    user = infile.read(length)
    length = unpack("i", infile.read(intsize))[0]
    passwd = infile.read(length)
        
    infile.close()
    return (user, passwd)


def get_basic_config(fname):
    """Works for userlist, chatrooms, dlbans, etc.


The hotlist.cnf file format (see get_downloads for more info):

- The file starts with an int: the number of users in the list

Then for each user:

- The length of the username, followed by the username"""
    
    infile = open(fname, 'r')
    intsize = 4
    users = []

    str = infile.read(1*intsize)

    n_entries = unpack("i", str)[0]
    for i in range(n_entries):
        length = unpack("i", infile.read(intsize))[0]
        user = infile.read(length)
        users.append(user)
        
    infile.close()
    return users


def get_userinfo(fname):
    """The userinfo file format:

- an int with the size of the text part, followed by the text part
- one byte, an indication for an image. 0 is no image, 1 is image
- an int with the image size, followed by the image data """

    infile = open(fname, 'r')
    intsize = 4

    imgdata = None

    str = infile.read(intsize)
    length = unpack("i", str)[0]
    descr = infile.read(length)
    descr = string.replace(descr, "\r", "")
    has_image = unpack("b",infile.read(1))[0]
    if has_image:
        length = unpack("i", infile.read(intsize))[0]
        imgdata = infile.read(length)
        
    infile.close()
    return (descr, imgdata)


def save_image(imgdata):
    """Save IMGDATA to file and return the filename or None."""
    global opt

    if not imgdata:
        print "No image data.  No image saved."
        return ""

    extension = imghdr.what(None, imgdata)
    if not extension:
        # how to print to stderr in python?  (no real problem here)
        print "Could not determine image type.  Image not saved."
        return ""

    fname = os.path.abspath(opt['config'] + '-userinfo.' + extension)
    outfile = open(fname, "w")
    outfile.write(imgdata)
    outfile.close()
    print "Wrote image to \"%s\"" % (fname)
    return fname


def is_in_user_list(user, user_list):
    """Checks if USER is in USER_LIST, ignoring the comment field"""
    for i in user_list:
        if type(i) == type(''):
            sys.stderr.write("\nError: The nicotine userlist is in an old pyslsk format.\n" +
                             "Please run Nicotine once before running this script.\n" +
                             "Config file not updated.\n")
            sys.exit(1)
        if user == i[0]:
            return 1
    return 0


def main():
    global opt

    parse_args()    

    # get the Nicotine configfile
    config = Config(opt['config'])
    config.readConfig()

    # get the windows info and update the sections
    if opt['queue']:
        print "Getting download queue..."
        windownloads = get_downloads(winpath('queue2.cfg'))

        for i in windownloads:
            if not i in config.sections["transfers"]["downloads"]:
                config.sections["transfers"]["downloads"].append(i)
        
    if opt['userlist']:
        print "Getting userlist..."
        users = get_basic_config(winpath('hotlist.cfg'))

        for i in users:
            if not is_in_user_list(i,config.sections["server"]["userlist"]):
                config.sections["server"]["userlist"].append([i,''])

    if opt['login']:
        print "Getting login and password..."
        (login,passw) = get_user_and_pass(winpath('login.cfg'))

        config.sections["server"]["login"] = login
        config.sections["server"]["passw"] = passw

    if opt['chatrooms']:
        print "Getting the list of autojoined chatrooms..."
        chatrooms = get_basic_config(winpath('chatrooms.cfg'))
        chatrooms.append('nicotine')

        for i in chatrooms:
            if i not in config.sections["server"]["autojoin"]:
                config.sections["server"]["autojoin"].append(i)

    if opt['banned']:
        print "Getting the list of banned users..."
        banlist = get_basic_config(winpath('dlbans.cfg'))

        for i in banlist:
            if i not in config.sections["server"]["banlist"]:
                config.sections["server"]["banlist"].append(i)

    if opt['userinfo']:
        print "Getting userinfo and image..."
        (descr, imgdata) = get_userinfo(winpath('userinfo.cfg'))
        if descr:
            config.sections["userinfo"]['descr'] = descr.__repr__()
        if imgdata:
            config.sections["userinfo"]['pic'] = save_image(imgdata)
  
    # write it
    config.writeConfig()
    
    print "Updated the Nicotine config file (%s)" % (opt['config'])
    print "\nMake sure you set the server option and download folder in the Settings panel."
    print "Don't forget to add your shares..."

   
if __name__ == '__main__':
    main()