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Diffstat (limited to 'ldap/admin/src/scripts/Dialog.pm')
| -rw-r--r-- | ldap/admin/src/scripts/Dialog.pm | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/ldap/admin/src/scripts/Dialog.pm b/ldap/admin/src/scripts/Dialog.pm new file mode 100644 index 00000000..da82740c --- /dev/null +++ b/ldap/admin/src/scripts/Dialog.pm @@ -0,0 +1,242 @@ +# BEGIN COPYRIGHT BLOCK +# This Program 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; version 2 of the License. +# +# This Program 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 +# this Program; if not, write to the Free Software Foundation, Inc., 59 Temple +# Place, Suite 330, Boston, MA 02111-1307 USA. +# +# In addition, as a special exception, Red Hat, Inc. gives You the additional +# right to link the code of this Program with code not covered under the GNU +# General Public License ("Non-GPL Code") and to distribute linked combinations +# including the two, subject to the limitations in this paragraph. Non-GPL Code +# permitted under this exception must only link to the code of this Program +# through those well defined interfaces identified in the file named EXCEPTION +# found in the source code files (the "Approved Interfaces"). The files of +# Non-GPL Code may instantiate templates or use macros or inline functions from +# the Approved Interfaces without causing the resulting work to be covered by +# the GNU General Public License. Only Red Hat, Inc. may make changes or +# additions to the list of Approved Interfaces. You must obey the GNU General +# Public License in all respects for all of the Program code and other code used +# in conjunction with the Program except the Non-GPL Code covered by this +# exception. If you modify this file, you may extend this exception to your +# version of the file, but you are not obligated to do so. If you do not wish to +# provide this exception without modification, you must delete this exception +# statement from your version and license this file solely under the GPL without +# exception. +# +# +# Copyright (C) 2007 Red Hat, Inc. +# All rights reserved. +# END COPYRIGHT BLOCK +# + +package Dialog; + +use DialogManager; + +#require Exporter; +#@ISA = qw(Exporter); +#@EXPORT = qw(); + +# NOTE: This "class" is an "abstract" class. There are two methods which +# must be provided by subclasses: +# $ans = $dialog->defaultAns($promptindex); +# where $promptindex is the index into the array of prompts given when +# constructing the Dialog object +# The dialog will typically use a default answer either hardcoded in +# or from some key in the setup cache (.inf) file +# +# $resp = $dialog->handleResponse($ans, $index); +# The dialog uses this method to perform validation of the input, set the value +# in the setup cache, display errors or warnings, and tell the dialog manager +# if the prompt needs to be redisplayed, or if there was an unrecoverable error +# $resp should be $SAME to reprompt, $ERR to abort, or $NEXT to continue +# the $ans and defaultAns should be in the native charset, so the dialog +# may have to convert to/from utf8 as needed. + +# a dialog consists of a title, some explanatory text, and one or more prompts +# each prompt has a default value. An example of a dialog with more than +# one prompt would be a dialog asking the user for the new root DN and password - +# in that case, there would be 3 prompts - one for the DN, one for the password, +# and one to verify the password +# The text and prompts are given as resource keys. Usually the resource value +# will be a simple string, in which case the resource key is passed in as a simple +# string. However, if the resource string contains replaceable parameters, the +# resource key is passed as an array ref consisting of the resource key as the +# first element and the parameters to use for replacement as the subsequent +# array elements e.g. +# $foo = new Dialog(['RESOURCE_KEY_CONFIG_LDAP_URL', $secure, $host, $port, $suffix], ...); +# but usually for simple cases like this: +# $foo = new Dialog('RESOURCE_KEY_WELCOME', ...); +# The manager contains the context for all of the dialogs - the setup type, the resource +# file, setup log, other context shared among the dialogs +# the type is the setup type - 1, 2, or 3 for express, typical, or custom +# type is used to say which types use this dialog +sub new { + my $type = shift; + my $self = {}; + + $self->{type} = shift; + $self->{text} = shift; + $self->{defaultAns} = shift; + $self->{handleResp} = shift; + $self->{prompts} = \@_; + + $self = bless $self, $type; + + return $self; +} + +sub setManager { + my $self = shift; + $self->{"manager"} = shift; +} + +# returns true if this dialog is to be displayed for the current setup type +# false otherwise +sub isDisplayed { + my $self = shift; + + return $self->{type} <= $self->{"manager"}->{type}; +} + +# each prompt looks like this: +# [ 'resource key', is pwd ] +# The resource key is the string key of the resource +# is pwd is optional - if present, the prompt is for a password +# and should not echo the answer +# e.g. +# ['RESOURCE_USERNAME'], ['RESOURCE_PASSWORD', 1], ['RESOURCE_PASSWORD_AGAIN', 1] +sub run { + my $self = shift; + my $resp = $DialogManager::SAME; + + # display the dialog text + if ($self->isDisplayed()) { + $self->{manager}->showText($self->{text}); + } + + # display each prompt for this dialog + my $index = 0; + my @prompts = @{$self->{prompts}}; + for (my $index = 0; $index < @prompts; ++$index) { + my $prompt = $prompts[$index]; + my $defaultans = $self->{defaultAns}($self, $index); + my $ans; + if ($self->isDisplayed()) { + $ans = $self->{manager}->showPrompt($prompt->[0], $defaultans, $prompt->[1]); + } else { + $ans = $defaultans; + } + + # see if this is the special BACK response, and finish if so + if ($self->{"manager"}->isBack($ans)) { + $resp = $DialogManager::BACK; + last; + } + + # figure out what action to take based on the users response + # this will set values in the setup info file + # this will also validate input, and display errors if the + # input is not correct - in that case, the resp will be + # SAME to reprompt, or ERR if unrecoverable + # NOTE: user cannot BACK from prompt to prompt - BACK + # always means BACK to the previous dialog + $resp = $self->{handleResp}($self, $ans, $index); + if ($resp == $DialogManager::SAME) { + if (!$self->isDisplayed()) { + $self->{manager}->alert('dialog_use_different_type'); + $resp = $DialogManager::ERR; + } else { + $index--; # reprompt + } + } elsif ($resp == $DialogManager::ERR) { + last; + } + } + + return $resp; +} + +package DialogYesNo; + +@ISA = qw(Dialog); + +sub new { + my $type = shift; + my $setuptype = shift; + my $text = shift; + my $defaultIsYes = shift; + my $handler = shift || \&handleResponse; + my $prompt = shift || ['prompt_yes_no']; + my $self = Dialog->new($setuptype, $text, + \&defaultAns, $handler, $prompt); + + $self->{defaultIsYes} = $defaultIsYes; + + $self = bless $self, $type; + + return $self; +} + +sub setDefaultYes { + my $self = shift; + $self->{default} = $self->{"manager"}->getText("yes"); +} + +sub setDefaultNo { + my $self = shift; + $self->{default} = $self->{"manager"}->getText("no"); +} + +sub defaultAns { + my $self = shift; + if (exists($self->{ans})) { + return $self->{ans}; + } + if (!exists($self->{default})) { + if ($self->{defaultIsYes}) { + $self->{default} = $self->{"manager"}->getText("yes"); + } else { + $self->{default} = $self->{"manager"}->getText("no"); + } + } + return $self->{default}; +} + +sub isYes { + my $self = shift; + return $self->{ans} eq $self->{"manager"}->getText("yes"); +} + +sub handleResponse { + my $self = shift; + my $ans = shift; + my $resp = $DialogManager::SAME; + my $yes = $self->{"manager"}->getText("yes"); + my $nno = $self->{"manager"}->getText("no"); + + # the regexp allows us to use y or ye or yes for "yes" + if ($nno =~ /^$ans/) { + $resp = $DialogManager::NEXT; + $self->{ans} = $nno; + } elsif ($yes =~ /^$ans/) { + $resp = $DialogManager::NEXT; + $self->{ans} = $yes; + } else { + $self->{"manager"}->alert("yes_no_error"); + } + + return $resp; +} + +############################################################################# +# Mandatory TRUE return value. +# +1; |
