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package PlackX::RouteBuilder; |
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543
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use strict; |
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use warnings; |
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112
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our $VERSION = '0.03'; |
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use Carp (); |
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12276
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use Router::Simple; |
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13625
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5603
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use Try::Tiny; |
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4532
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158
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2864
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use Plack::Request; |
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191479
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use Scalar::Util qw(blessed); |
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196
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my $_ROUTER = Router::Simple->new; |
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sub import { |
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my $caller = caller; |
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no strict 'refs'; |
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no warnings 'redefine'; |
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*{"${caller}::router"} = \&router; |
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my @http_methods = qw/get post put del any/; |
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for my $http_method (@http_methods) { |
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*{"${caller}\::$http_method"} = sub { goto \&$http_method }; |
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} |
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2
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strict->import; |
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2
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2831
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warnings->import; |
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} |
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sub _stub { |
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my $name = shift; |
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0
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return sub { Carp::croak("Can't call $name() outside router block") }; |
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0
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} |
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{ |
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my @declarations = qw(get post put del any); |
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for my $keyword (@declarations) { |
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2
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no strict 'refs'; |
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2
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174
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*$keyword = _stub $keyword; |
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} |
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} |
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44
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sub router (&) { |
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1
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1
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0
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my $block = shift; |
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1
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if ($block) { |
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2
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no warnings 'redefine'; |
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4
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2
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2445
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1
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2
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local *get = sub { do_get(@_) }; |
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7
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1
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1
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local *post = sub { do_post(@_) }; |
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5
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1
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0
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local *put = sub { do_put(@_) }; |
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0
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1
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0
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local *del = sub { do_del(@_) }; |
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0
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53
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1
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2
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5
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local *any = sub { do_any(@_) }; |
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8
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54
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1
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6
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$block->(); |
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0
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0
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0
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return sub { dispatch(shift) } |
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1
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99
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} |
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} |
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60
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# HTTP Methods |
61
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sub route { |
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0
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9
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my ( $pattern, $code, $methods ) = @_; |
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5
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17
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unless ( ref $code eq 'CODE' ) { |
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0
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Carp::croak("The logic for $pattern must be CodeRef"); |
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} |
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67
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$_ROUTER->connect( |
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12
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$pattern, |
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{ action => $code }, |
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5
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{ method => [ map { uc $_ } @$methods ] } |
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); |
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} |
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74
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sub do_any { |
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2
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100
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2
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0
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6
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if ( scalar @_ == 4 ) { |
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1
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3
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my ( $methods, $pattern, $code ) = @_; |
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1
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3
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route( $pattern, $code, $methods ); |
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} |
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else { |
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1
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3
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my ( $pattern, $code ) = @_; |
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1
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route( $pattern, $code, [ 'GET', 'POST', 'DELETE', 'PUT', 'HEAD' ] ); |
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} |
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} |
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85
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sub do_get { |
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my ( $pattern, $code ) = @_; |
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2
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10
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route( $pattern, $code, [ 'GET', 'HEAD' ] ); |
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} |
89
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90
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sub do_post { |
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1
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1
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0
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4
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my ( $pattern, $code ) = @_; |
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1
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4
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route( $pattern, $code, ['POST'] ); |
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} |
94
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95
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sub do_put { |
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0
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0
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my ( $pattern, $code ) = @_; |
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0
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route( $pattern, $code, ['PUT'] ); |
98
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} |
99
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100
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sub do_del { |
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0
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0
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my ( $pattern, $code ) = @_; |
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0
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route( $pattern, $code, ['DELETE'] ); |
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} |
104
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105
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# dispatch |
106
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sub dispatch { |
107
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0
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0
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0
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my $env = shift; |
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0
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0
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if ( my $match = $_ROUTER->match($env) ) { |
109
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0
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my $req = Plack::Request->new($env); |
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0
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return handle_request( $req, $match ); |
111
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} |
112
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else { |
113
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0
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return handle_not_found(); |
114
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} |
115
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} |
116
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117
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sub handle_request { |
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0
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0
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0
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my ( $req, $match ) = @_; |
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0
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my $code = delete $match->{action}; |
120
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my $res = try { |
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0
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0
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$code->( $req, $match ); |
122
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} |
123
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catch { |
124
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0
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0
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my $e = shift; |
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0
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return handle_exception($e); |
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0
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}; |
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0
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return psgi_response($res); |
128
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} |
129
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130
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sub psgi_response { |
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0
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0
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0
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my $res = shift; |
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133
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0
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my $psgi_res; |
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0
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0
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my $res_type = ref($res) || ''; |
135
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0
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0
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0
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if ( blessed $res && $res->isa('Plack::Response') ) { |
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0
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136
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0
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$psgi_res = $res->finalize; |
137
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} |
138
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elsif ( $res_type eq 'ARRAY' ) { |
139
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0
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$psgi_res = $res; |
140
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} |
141
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else { |
142
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0
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Carp::croak("unknown response type: $res_type. The response is $res"); |
143
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} |
144
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0
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$psgi_res; |
145
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} |
146
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147
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sub handle_exception { |
148
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0
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0
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0
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my $e = shift; |
149
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0
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warn "An internal error occured during processing request: $e"; |
150
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0
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return internal_server_error($e); |
151
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} |
152
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153
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sub handle_not_found { |
154
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0
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0
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0
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return not_found(); |
155
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} |
156
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157
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sub not_found { |
158
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0
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0
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0
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[ 404, [], ['Not Found'] ]; |
159
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} |
160
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161
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sub internal_server_error { |
162
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0
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0
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0
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my $e = shift; |
163
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0
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[ 500, [], [ 'Internal server error: ' . $e ] ]; |
164
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} |
165
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166
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1; |
167
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168
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__END__ |