Source

controlcenter / user_add / user_add.py~

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#!/usr/bin/env python

#    This file is part of controlcenter.
#
#    controlcenter is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License v2 as published by
#    the Free Software Foundation.
#
#    controlcenter 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 controlcenter.  If not, see <http://www.gnu.org/licenses/>.


__author__ = 'Moises Henriquez'
__author_email__ = 'moc.liamg]ta[xnl.E0M'.replace(']ta[', '@')[::-1]

import gtk
import os

def __init__(self):
        
    n_account = None
    tabs_ = []
    g_btOK = None

def _(str): return str

class Account(object):
    '''Object for a user account. This object will have several properties
    available. These will be all set to None on a new account, or will
    default to the stored values on an existing account.
    '''
    def __init__(self):
        self.name = None
        self.homedir = None
        self.uid = None
        self.shell = None
        self.password = None
        self.maingroup = None
        self.groups = []
        self.login = None
    
    def preview(self):
        '''Prints out the information stored about the user account. This 
        information will reflect any changes that have been made and is 
        for mere testing purposes, to make sure all required fields are 
        filled'''
        print _('Login Name:'), self.login
        print _('User Name:'), self.name
        print _('User ID:'), self.uid
        print _('Home Directory:'), self.homedir
        print _('Login Shell:'), self.shell
        print _('Main Group:'), self.maingroup
        print _('Groups List:'), ','.join(self.groups)
        print _('Password: ****** '), 
        
    
    def load(self, login):
        '''Load the information stored in the system about a user account.
        Required arguments:
            login = String representing a valid user name in the system.
        '''
        passfile = '/etc/passwd'
        groupfile = '/etc/group'
        self.login = login
        f = open(passfile, 'r')
        passinfo = f.readlines()
        f.close()
        for line in passinfo:
            if line.startswith(login):
                spl = line.split(':')
                uid = spl[2]
                gid = spl[3]
                rname = spl[4]
                homedir = spl[5]
                shell = spl[6]
        self.uid = uid
        self.name = rname
        self.homedir = homedir
        self.shell = shell
        return
    


class MainWin(gtk.Window):
    '''Main window for user add module
    Arguments:
        account:    An Account object. Defaults to None for a new account.'''
    def __init__(self, account = None):
        print account
        gtk.Window.__init__(self, gtk.WINDOW_TOPLEVEL)
        if account: n_account = account
        self.connect('destroy', gtk.main_quit)
        self.set_property('title', _('Create User Account'))
        body = gtk.VBox()
        self.add(body)
        self.tabstrip = gtk.Notebook()
        btnbar = gtk.HBox()
        
        body.pack_start(self.tabstrip, True, True, 4)
        body.pack_start(btnbar, False, False, 4)
        
        bt_OK = gtk.Button(_('OK'), gtk.STOCK_OK)
        bt_OK.connect('clicked', self.preview_account)
        self.OK = bt_OK
        bt_Cancel = gtk.Button(_('Cancel'), gtk.STOCK_CANCEL)
        bt_Cancel.connect('clicked', gtk.main_quit)
        
        btnbar.pack_end(bt_OK, False, False, 2)
        btnbar.pack_end(bt_Cancel, False, False, 2)

        self.set_default_size(400,450)
        self.set_position(gtk.WIN_POS_CENTER)
        
        ## Create tab objects.
        tab_basic= BasicSettingsTab()
        tab_privileges = PrivilegesTab()
        tab_advanced = AdvancedTab()
        tabs_.append(tab_basic)
        tabs_.append(tab_privileges)
        tabs_.append(tab_advanced)
        
        ## Add the tabs to the window
        for tab in tabs_:
            self.tabstrip.append_page(tab, tab.label)
    def preview_account(self, widget):
        '''Trigger account preview'''
        return n_account.preview()
        
    
    def load_account(self, account):
        self.n_account.load(account)
        
        
        
class Tab(gtk.VBox):
    '''Abstract class for a tab in the user add module 
    Required Arguments:
        title:  Title to be used for this tab
                Title is available after creating the object
                via tab.label and is returned as a gtk.Label'''
    def __init__(self, title):
        gtk.VBox.__init__(self)
        self.label = gtk.Label(title)
        
    def refresh_info(self):
        ''' This method can be called to refresh the information displayed
        in this tab. Information is read from the account object'''
        pass
    
    def load_existing_data(self):
        '''This method will read the data for an existing user account
        and display it on the tabstrip. This will allow the same tabstrip to be
        used when creating a new account as well as when editing an existing account'''
        pass

class SectionLabel(gtk.Label):
    '''Pre-set widget based on gtk.Label preformatted to be used as a
    section banner within tabs'''
    def __init__(self, text):
        gtk.Label.__init__(self)
        self.set_property('use-markup', True)
        self.set_property('label', '<b>%s</b>'% text)
        self.set_property('xalign', 0.0)
        self.set_property('xpad', 12)
        
class LineLabel(gtk.Label):
    '''Pre-set widget based on gtk.Label pre-formatted to be used as a 
    label in instances where a label is needed before another widget'''
    def __init__(self, text):
        gtk.Label.__init__(self)
        self.set_property('use-markup', True)
        self.set_property('label', text)
        self.set_property('xalign', 0.0)
        self.set_property('width-chars', 13)    ## Fixme: Fixed width for these?
        

class BasicSettingsTab(Tab):
    '''Tab displaying the basic settings for the user add module'''
    def load_existing_data(self):
        '''Loads the existing data about the user account to the appropriate widgets'''
        self.login_txt.set_text(n_account.login)
        self.login_txt.set_sensitive(False)
        self.name_txt.set_text(n_account.name)
        return
    
    def update_login(self, widget):
        '''Update login name field for user account'''
        n_account.login = widget.get_text().strip() ## FIXME: strip this??
        ## Also update the home directory
        n_account.homedir = os.path.join('/home', n_account.login)
        
        ## Display this value on the advanced tab
        for tab in tabs_:
            tab.refresh_info()
    
    def update_realname(self, widget):
        '''Update the real name field for user account'''
        n_account.name = widget.get_text().strip()  ## FIXME: strip this??
    def set_pass_1(self, widget):
        '''Set the first password entry for user account'''
        n_account.password = widget.get_text()
        
    def verify_password(self, pass2):
        ''' Make sure both password entires match'''
        if pass2 == n_account.password:
            return True
        return False
    def set_pass_2(self, widget):
        '''Set the second password for the user account. Just to make sure'''
        if g_btOK:
            g_btOK.set_sensitive(self.verify_password(widget.get_text()))
        else:
            print 'no OK button'
            
        
    def __init__(self):
        Tab.__init__(self, _('Basic Settings'))
        banner = SectionLabel(_('Basic Information'))
        self.pack_start(banner, False, False, 4)
        
        spacer = gtk.Label()
        self.pack_start(spacer, False, False, 4)
        line_name = gtk.HBox()
        login_label = LineLabel(_('Login Name'))
        login_txtbox = gtk.Entry()
        login_txtbox.connect('changed', self.update_login)
        self.login_txt = login_txtbox
        line_name.pack_start(login_label, False, False, 2)
        line_name.pack_start(login_txtbox, True, True, 2)
        self.pack_start(line_name, False, False, 4)
        
        rname_box = gtk.HBox()
        rname_label = LineLabel(_('Real Name'))
        rname_txt = gtk.Entry()
        rname_txt.connect('changed', self.update_realname)
        self.name_txt = rname_txt
        rname_box.pack_start(rname_label, False, False, 2)
        rname_box.pack_start(rname_txt, True, True, 2)
        self.pack_start(rname_box, False, False, 4)
        
        spacer = gtk.Label()
        self.pack_start(spacer, False, False, 4)
        
        banner1 = SectionLabel(_('Password'))
        self.pack_start(banner1, False, False, 4)
        pass1_box = gtk.HBox()
        pass2_box = gtk.HBox()
        pass1_label = LineLabel(_('User Password'))
        pass1_txt = gtk.Entry()
        pass1_txt.connect('changed', self.set_pass_1)
        self.pass1_box = pass1_txt
        pass1_txt.set_property('visibility', False)
        pass1_box.pack_start(pass1_label, False, False, 2)
        pass1_box.pack_start(pass1_txt, True, True, 2)
        
        pass2_label = LineLabel(_('Confirm Password'))
        pass2_txt = gtk.Entry()
        pass2_txt.connect('changed', self.set_pass_2)
        self.pass2_box = pass2_txt
        pass2_txt.set_property('visibility', False)
        pass2_box.pack_start(pass2_label, False, False, 2)
        pass2_box.pack_start(pass2_txt, True, True, 2)
        
        self.pack_start(pass1_box, False, False, 4)
        self.pack_start(pass2_box, False, False, 4)
    

class PrivilegesTab(Tab):
    '''User privileges tab that allows the administrator to pick and choose what
    the user is allowed to do on the system'''
    def __init__(self):
        Tab.__init__(self, _('Privileges'))
        banner = SectionLabel(_('User Privileges'))
        self.pack_start(banner, False, False, 4)
        self.rights_values = [
        ('lpadmin', True,  _('Manage system printers')), \
        ('scaner', False, _('Use scanners')), \
        ('video', True, _('Capture video from TV or webcam'))
        ]
        
        ## set default grouplist
        for entry in self.rights_values:
            if entry[1]:
                n_account.groups.append(entry[0])
        
        sw = gtk.ScrolledWindow()
        sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
        tv = self._get_tree()
        sw.add(tv)
        self.pack_start(sw, True, True, 4)
    
    def _get_tree(self):
        '''Internal function that pvides a treeview with a list of
        checkbuttons to check off user access'''
        rights = self.rights_values
        store = gtk.ListStore(str, bool, str)
        for right in rights:
            store.append([right[0], right[1], right[2]])
        
        tree = gtk.TreeView(store)
        cell0 = gtk.CellRendererToggle()
        cell0.set_property('activatable', True)
        cell0.connect('toggled', self.checkbox_toggle, tree.get_model())
        col0 = gtk.TreeViewColumn(None, cell0)
        col0.add_attribute(cell0, 'active', 1)
        
        cell1 = gtk.CellRendererText()
        col1 = gtk.TreeViewColumn(None, cell1, text=2)
        tree.append_column(col0)
        tree.append_column(col1)
        
        return tree
    
    def checkbox_toggle(self, widget, path, model):
        model[path][1] = not model[path][1]
        for item in model:
            if item[1]:
                if not item[0] in n_account.groups:
                    n_account.groups.append(item[0].strip())
            else:
                if item[0] in n_account.groups:
                    n_account.groups.remove(item[0].strip())
                
        print n_account.groups


class AdvancedTab(Tab):
    '''Advanced settings tab.
    This tab will provide advanced settings for creating a user account.
    These settings are optional and default to the system defaults.
    '''
    
    def refresh_info(self):
        '''Reflect changes made to the home directory especially from the
        basic settings tab.'''
        self.homedir_box.set_text(n_account.homedir)
        
    def load_existing_data(self):
        self.homedir_box.set_text(n_account.homedir)
        self.homedir_box.set_sensitive(False)
        self.uid_spinner.set_value(float(n_account.uid))
        self.uid_spinner.set_sensitive(False)
        model = self.shell_sel_combo.get_model()
        n = 0
        for item in model:
            n += 1
        for x in range(0, n):
            if model[x][0].strip() == n_account.shell.strip():
                #print 'found %s in combobox. Setting as active'% n_account.shell.strip()
                self.shell_sel_combo.set_active(x)
                self.shell_sel_combo.set_sensitive(False) ## Fixme: Disabled for now
                break
    
    def update_homedir(self, widget):
        '''Update the home directory on the account to the value specified in the
        advanced tab'''
        n_account.homedir = widget.get_text()
    
    def update_maingroup(self, widget):
        '''Update the user's main group to the value selected from the
        advanced tab'''
        n_account.maingroup = widget.get_active_text()
    
    def update_shell(self, widget):
        '''Update the user's login shell to the value selected from the
        advanced tab'''
        n_account.shell = widget.get_active_text()
    
    def update_uid(self, widget):
        '''Update the uid value to the value selected from the advanced tab'''
        n_account.uid = int(widget.get_value())
        
        

    def __init__(self):
        Tab.__init__(self, _('Advanced'))
        banner = SectionLabel(_('Advanced Settings'))
        spacer = gtk.Label()
        self.pack_start(banner, False, False, 4)
        self.pack_start(spacer, False, False, 4)
        
        homedir_line = gtk.HBox()
        homedir_label = LineLabel(_('Home Directory'))
        homedir_txt = gtk.Entry()
        homedir_txt.connect('changed', self.update_homedir)
        self.homedir_box = homedir_txt
        homedir_line.pack_start(homedir_label, False, False, 2)
        homedir_line.pack_start(homedir_txt, True, True, 2)
        self.pack_start(homedir_line, False, False, 4)
        
        maingroup_line = gtk.HBox()
        maingroup_label = LineLabel(_('Main Group'))
        ulist = gtk.ListStore(str)
        ## Read /etc/group and list all groups =< 100  <-- FIXME:
        f = open('/etc/group', 'r')
        glist = f.readlines()
        f.close()
        ulist.append(['Default (username)']) ## Defaults to user name
        for line in glist:
            spl = line.split(':')
            if int(spl[2]) > 0 and int(spl[2]) <= 100:
                ulist.append([spl[0].strip()])
        ## FIXME: ^^ User group policy?
        maingroup_sel = gtk.ComboBox(ulist)
        maingroup_sel.connect('changed', self.update_maingroup)
        self.main_group_combo = maingroup_sel
        cell0 = gtk.CellRendererText()
        maingroup_sel.pack_start(cell0, True)
        maingroup_sel.add_attribute(cell0, 'text', 0)
        maingroup_sel.set_active(0)
        maingroup_line.pack_start(maingroup_label, False, False, 2)
        maingroup_line.pack_start(maingroup_sel, True, True, 2)
        self.pack_start(maingroup_line, False, False, 4)
        
        shell_line = gtk.HBox()
        shell_label = LineLabel('Login Shell')
        shell_list = gtk.ListStore(str)
        shell_sel = gtk.ComboBox(shell_list)
        shell_sel.connect('changed', self.update_shell)

        self.shell_sel_combo = shell_sel
        
        ## Read /etc/shells if it exists to get the default shells available
        if os.path.exists('/etc/shells'):
            f = open('/etc/shells', 'r')
            shells = f.readlines()
            f.close()
            for shell in shells:
                shell_list.append([shell.strip()])
        elif os.path.exists('/bin/bash'):
            ## if /etc/shells doesn't exist, but /bin/bash does
            shell_list.append(['/bin/bash'])
        else:
            ## No shells available???
            shell_sel.set_sensitive(False)
        cell = gtk.CellRendererText()
        shell_sel.pack_start(cell, True)
        shell_sel.add_attribute(cell, 'text', 0)
        
        shell_sel.set_active(0)
        
        shell_line.pack_start(shell_label, False, False, 2)
        shell_line.pack_start(shell_sel, True, True, 2)
        self.pack_start(shell_line, False, False, 4)
        
        uid_line = gtk.HBox()
        uid_label = LineLabel(_('User ID'))
        min_ = 1000
        n_list = []
        f = open('/etc/passwd', 'r')
        entries = f.readlines()
        f.close()
        for line in entries:
            spl = line.split(':')
            if int(spl[2]) >= 1000:
                n_list.append(int(spl[2]))
        n_list.sort()
        min_ = max(n_list)+1
        ## Set default value to the user account
        n_account.uid = int(min_)
        adj = gtk.Adjustment(1000, min_, 10000, 1, 10, 0)
        uid_spinner = gtk.SpinButton(adj, 0, 0)
        uid_spinner.connect('value-changed', self.update_uid)
        self.uid_spinner = uid_spinner
        uid_line.pack_start(uid_label, False, False, 2)
        uid_line.pack_start(uid_spinner, True, True, 2)
        self.pack_start(uid_line, False, False, 4)
    
if __name__ == '__main__':
    n_account = Account()
    w = MainWin()
    g_btOK = w.OK
    g_btOK.set_sensitive(False) ## Disable the OK button until the password is provided
    w.show_all()
    gtk.main()
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