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Dancer-1.3522
⭐ Starred 738 / Dancer::Timer
Security Advisories (1)
CVE-2026-5080 (2026-04-30)

Dancer::Session::Abstract versions through 1.3522 for Perl generates session ids insecurely. The session id is generated from summing the character codepoints of the absolute pathname with the process id, the epoch time and calls to the built-in rand() function to return a number between 0 and 999-billion, and concatenating that result three times. The path name might be known or guessed by an attacker, especially for applications known to be written using Dancer with standard installation locations. The epoch time can be guessed by an attacker, and may be leaked in the HTTP header. The process id comes from a small set of numbers, and workers may have sequential process ids. The built-in rand() function is seeded with 32-bits and is considered unsuitable for security applications. Predictable session ids could allow an attacker to gain access to systems.

NAME

Dancer::Timer - a timer for Dancer

VERSION

version 1.3522

SYNOPSIS

use Dancer::Timer;

my $timer = Dancer::Timer->new();
my $time  = $timer->tick;
print "[$time]: Doing something\n";

# (time passes)
$time = $timer->tick;
print "[$time]: Doing something else\n";

# (time passes)
$time = $timer->to_string;
print "[$time]: Doing another thing\n";

DESCRIPTION

Dancer::Timer provides Dancer with a timing object to clock operations. For example, you might want a logging that shows you when each operation happened (at what time) to determine how long each operation was in order to know where to focus on for possible bugs or perhaps unnecessary slowness.

Dancer uses Dancer::Timer in facilities that want to provide this for you. Any plugin author is more than welcome to use it as well.

ATTRIBUTES

start_time

Retains the starting time of the timer. The default value is when the object is created. It fetches that using gettimeofday from Time::HiRes.

METHODS

init

This method is called when ->new() is called. It initializes the start_time attribute.

tick

Creates a tick in the timer and returns the interval between the start_time and now.

to_string

Same as tick, just more expressive.

AUTHOR

Dancer Core Developers

COPYRIGHT AND LICENSE

This software is copyright (c) 2010 by Alexis Sukrieh.

This is free software; you can redistribute it and/or modify it under the same terms as the Perl 5 programming language system itself.