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package Mojolicious::Plugin::CaptchaRenderer; |
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use strict; |
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use warnings; |
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use File::Temp; |
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use File::Spec; |
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use base 'Mojolicious::Plugin'; |
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BEGIN { |
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die 'Module Image::Magick not properly installed' unless eval { require Image::Magick; 1 } |
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0
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} |
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our $VERSION = 0.02; |
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sub register { |
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my ($self,$app,$conf) = @_; |
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$conf = { |
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color => 'black', |
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bgcolor => 'white', |
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size => 60, |
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wave_amplitude => 7, |
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wave_length => 80, |
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%$conf, |
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}; |
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$app->renderer->add_helper( |
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captcha => sub { |
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my ($self,$code) = @_; |
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my $img = Image::Magick->new(size => '400x400', magick => 'png'); |
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my $x; $x = $img->Read('gradient:#ffffff-#ffffff'); |
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$x = $img->Annotate( |
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pointsize => $conf->{'size'}, |
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fill => $conf->{'color'}, |
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text => $code, |
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geometry => '+0+' . $conf->{'size'}, |
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$conf->{'font'} ? (font => $conf->{'font'}) : (), |
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); |
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warn $x if $x; |
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$x = $img->Wave(amplitude => $conf->{'wave_amplitude'}, wavelength => $conf->{'wave_length'}); |
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warn $x if $x; |
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$x = $img->Trim; |
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warn $x if $x; |
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my $body = ''; |
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{ |
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my $fh = File::Temp->new(UNLINK => 1, DIR => $ENV{MOJO_TMPDIR} || File::Spec->tmpdir); |
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$x = $img->Write('png:' . $fh->filename); |
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open $fh, '<', $fh->filename; |
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local $/; |
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$body = <$fh>; |
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} |
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return $body; |
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} |
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); |
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} |
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1; |
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65
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=head1 NAME |
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67
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Mojolicious::Plugin::CaptchaRenderer - captcha renderer for Mojolicious framework |
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69
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=head1 VERSION |
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71
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0.02 |
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73
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=head1 SYNOPSIS |
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75
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# Mojolicious::Lite |
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plugin captcha_renderer => { size => 20, color => 'blue', wave_amplitude => 4}; |
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get '/img/code.png' => sub { |
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my $self = shift; |
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$self->render_data($self->captcha('cool captcha code')); |
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} |
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82
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# Mojolicious |
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$self->plugin(captcha_renderer => { size => 20, color => 'blue', wave_amplitude => 4}); |
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84
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85
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package MyApp::MyController; |
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86
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87
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sub my_action { |
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my $self = shift; |
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$self->render_data($self->captcha('cool captcha code')); |
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} |
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92
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=head1 OPTIONS |
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94
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=over 4 |
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96
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=item size - font size. By default 60 |
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=item color - font color. By default black |
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100
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=item font - font name. By default undef |
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102
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=item bgcolor - captcha background color. By default white |
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104
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=item wave_amplitude - amplitude of wave in captcha. By default 7 |
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106
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=item wave_length - length of wave in captcha. By dafault 80 |
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108
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=back |
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110
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=head1 SUPPORT |
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112
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=over 4 |
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114
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=item * Repository |
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L |
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=back |
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=head1 SEE ALSO |
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L, L, L |
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=head1 COPYRIGHT & LICENSE |
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Copyright 2010 Dmitry Konstantinov. All right reserved. |
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This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. |