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Perl - check names in varible

Posted on 2011-02-23
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Last Modified: 2012-05-11
I have an issue where I need up update our password checker so that when a user resets their password a check is made to make sure the new password does not contain the users First or Last name.

I have a sample script for a check below, the issue I have is that we have many users that has multiple names in their First or Last name, so in the sample below the check would work if I changed the Fist or Last name to just one word.

How can I fix the check to break down the multiple names in the First or Last name (if exists) then do the test on each of the words in the Fist or Last name.


#! /usr/bin/perl
use strict;
use warnings;

my $newPassword = 'Billy#123';
my $firstName = 'John Doe';
my $lastName = 'Billy Ray';

my @wordsInNames;
push(@wordsInNames, "$firstName", "$lastName");

foreach my $wd (@wordsInNames) {
 if ($newPassword =~ /$wd/) {
   print "Found name in password: $wd\n";
 }
}

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Question by:bt707
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5 Comments
 
LVL 26

Accepted Solution

by:
wilcoxon earned 350 total points
ID: 34965649
This should work.  It currently breaks names down based on space or hyphen.
#! /usr/bin/perl
use strict;
use warnings;

my $newPassword = 'Billy#123';
my $firstName = 'John Doe';
my $lastName = 'Billy Ray';

my @wordsInNames;
push @wordsInNames, split(/[-\s]/, $firstName);
push @wordsInNames, split(/[-\s]/, $lastName);

foreach my $wd (@wordsInNames) {
 if ($newPassword =~ /$wd/i) {
   print "Found name in password: $wd\n";
 }
}

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0
 
LVL 5

Assisted Solution

by:group0
group0 earned 75 total points
ID: 34965652
#! /usr/bin/perl
use strict;
use warnings;

my $newPassword = 'Billy#123';
my $firstName = 'John Doe';
my $lastName = 'Billy Ray';

my @wordsInNames = split(/ /, "$firstName $lastName");

foreach my $wd (@wordsInNames) {
 if ($newPassword =~ /$wd/) {
   print "Found name in password: $wd\n";
 }
}

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0
 
LVL 16

Assisted Solution

by:sjklein42
sjklein42 earned 75 total points
ID: 34965656
This change will split the first name and last name on spaces.  I think it is what you want.

#! /usr/bin/perl
use strict;
use warnings;

my $newPassword = 'Billy#123';
my $firstName = 'John Doe';
my $lastName = 'Billy Ray';

my @wordsInNames;
push(@wordsInNames, split(/\s+/,$firstName), split(/\s+/,$lastName));

foreach my $wd (@wordsInNames) {
 if ($newPassword =~ /$wd/) {
   print "Found name in password: $wd\n";
 }
} 

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0
 
LVL 16

Expert Comment

by:sjklein42
ID: 34965667
How many ways to skin a cat!  I wish I hadn't delayed to test mine!
0
 

Author Closing Comment

by:bt707
ID: 34965689
Thanks for all the quick answers, I had tried the one from wilcoxon when posted and worked fine, I'm sure all other did the same, just was not sure how to spit the names for the checks.

Thanks All !!!!
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