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1 | package Catalyst::Plugin::SubRequest; |
2 | |
3 | use strict; |
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4 | use warnings; |
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5 | use Time::HiRes qw/tv_interval/; |
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6 | |
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7 | our $VERSION = '0.17'; |
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8 | |
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9 | =head1 NAME |
10 | |
11 | Catalyst::Plugin::SubRequest - Make subrequests to actions in Catalyst |
12 | |
13 | =head1 SYNOPSIS |
14 | |
15 | use Catalyst 'SubRequest'; |
16 | |
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17 | my $res_body = $c->subreq('/test/foo/bar', { template => 'magic.tt' }); |
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18 | |
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19 | my $res_body = $c->subreq( { |
20 | path => '/test/foo/bar', |
21 | body => $body |
22 | }, { |
23 | template => 'magic.tt' |
24 | }); |
25 | |
26 | # Get the full response object |
27 | my $res = $c->subreq_res('/test/foo/bar', { |
28 | template => 'mailz.tt' |
29 | }, { |
30 | param1 => 23 |
31 | }); |
32 | $c->log->warn( $res->content_type ); |
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33 | |
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34 | =head1 DESCRIPTION |
35 | |
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36 | Make subrequests to actions in Catalyst. Uses the catalyst |
37 | dispatcher, so it will work like an external url call. |
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38 | Methods are provided both to get the body of the response and the full |
39 | response (L<Catalyst::Response>) object. |
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40 | |
41 | =head1 METHODS |
42 | |
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43 | =over 4 |
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44 | |
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45 | =item subreq [path as string or hash ref], [stash as hash ref], [parameters as hash ref] |
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46 | |
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47 | =item subrequest |
48 | |
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49 | =item sub_request |
50 | |
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51 | Takes a full path to a path you'd like to dispatch to. |
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52 | |
53 | If the path is passed as a hash ref then it can include body, action, |
54 | match and path. |
55 | |
56 | An optional second argument as hashref can contain data to put into the |
57 | stash of the subrequest. |
58 | |
59 | An optional third argument as hashref can contain data to pass as |
60 | parameters to the subrequest. |
61 | |
62 | Returns the body of the response. |
63 | |
64 | =item subreq_res [path as string or hash ref], [stash as hash ref], [parameters as hash ref] |
65 | |
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66 | =item subrequest_response |
67 | |
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68 | =item sub_request_response |
69 | |
70 | Like C<sub_request()>, but returns a full L<Catalyst::Response> object. |
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71 | |
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72 | =back |
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73 | |
74 | =cut |
75 | |
76 | *subreq = \&sub_request; |
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77 | *subrequest = \&sub_request; |
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78 | *subreq_res = \&sub_request_response; |
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79 | *subrequest_response = \&sub_request_response; |
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80 | |
81 | sub sub_request { |
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82 | return shift->sub_request_response( @_ )->body ; |
83 | } |
84 | |
85 | sub sub_request_response { |
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86 | my ( $c, $path, $stash, $params ) = @_; |
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87 | |
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88 | $path =~ s#^/##; |
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89 | |
90 | $params ||= {}; |
91 | |
92 | my %request_mods = ( |
93 | body => undef, |
94 | action => undef, |
95 | match => undef, |
96 | parameters => $params, |
97 | ); |
98 | |
99 | if (ref $path eq 'HASH') { |
100 | @request_mods{keys %$path} = values %$path; |
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101 | $path = $path->{path}; |
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102 | } else { |
103 | $request_mods{path} = $path; |
104 | } |
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105 | $request_mods{_body} = delete $request_mods{body}; |
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106 | |
107 | my $fake_engine = bless( |
108 | { |
109 | orig_request => $c->req, |
110 | request_mods => \%request_mods, |
111 | }, |
112 | 'Catalyst::Plugin::SubRequest::Internal::FakeEngine' |
113 | ); |
114 | |
115 | my $class = ref($c); |
116 | |
117 | no strict 'refs'; |
118 | no warnings 'redefine'; |
119 | |
120 | local *{"${class}::engine"} = sub { $fake_engine }; |
121 | |
122 | my $inner_ctx = $class->prepare; |
123 | |
124 | $inner_ctx->stash($stash || {}); |
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125 | |
126 | |
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127 | $c->stats->profile( |
128 | begin => 'subrequest: /' . $path, |
129 | comment => '', |
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130 | ) if ($c->debug); |
131 | |
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132 | $inner_ctx->dispatch; |
133 | |
134 | $c->stats->profile( end => 'subrequest: /' . $path ) if ($c->debug); |
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135 | |
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136 | return $inner_ctx->response; |
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137 | } |
138 | |
139 | =head1 SEE ALSO |
140 | |
141 | L<Catalyst>. |
142 | |
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143 | =head1 AUTHORS |
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144 | |
145 | Marcus Ramberg, C<mramberg@cpan.org> |
146 | |
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147 | Tomas Doran (t0m) C<< bobtfish@bobtfish.net >> |
148 | |
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149 | =head1 THANK YOU |
150 | |
151 | SRI, for writing the awesome Catalyst framework |
152 | |
153 | =head1 COPYRIGHT |
154 | |
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155 | Copyright (c) 2005 - 2011 |
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156 | the Catalyst::Plugin::SubRequest L</AUTHORS> |
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157 | as listed above. |
158 | |
159 | =head1 LICENSE |
160 | |
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161 | This program is free software, you can redistribute it and/or modify it under |
162 | the same terms as Perl itself. |
163 | |
164 | =cut |
165 | |
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166 | package # hide from PAUSE |
167 | Catalyst::Plugin::SubRequest::Internal::FakeEngine; |
168 | |
169 | sub AUTOLOAD { return 1; } # yeah yeah yeah |
170 | |
171 | sub prepare { |
172 | my ($self, $c) = @_; |
173 | my $req = $c->request; |
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174 | |
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175 | @{$req}{keys %{$self->{orig_request}}} = values %{$self->{orig_request}}; |
176 | while (my ($key,$value) = each %{$self->{request_mods}}) { |
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177 | if (my $mut = $req->can($key)) { |
178 | $req->$mut($value); |
179 | } else { |
180 | $req->{$key} = $value; |
181 | } |
182 | } |
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183 | } |
184 | |
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185 | 1; |