line |
stmt |
bran |
cond |
sub |
pod |
time |
code |
1
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# TODO: If the model supports caching roles, add headers and check for http 304 |
2
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# TODO: Implement and support Accept-Language models (port from RDF::Trine::Store::LanguagePreference) |
3
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# TODO: Add next/prev link headers if query is paged |
4
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# TODO: Add configuration and link headers to indicate LDF/SPARQL mirrors |
5
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6
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2
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2
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907925
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use v5.14; |
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2
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4
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7
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2
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2
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6
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use warnings; |
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2
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2
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2
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60
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8
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9
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package AtteanX::Error { |
10
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2
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2
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453
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use Moo; |
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2
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9005
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2
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8
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11
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2
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2
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1836
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use Types::Standard qw(Str HashRef); |
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2
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46688
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2
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14
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12
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2
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2
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1515
|
use namespace::clean; |
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2
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7738
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2
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8
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13
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14
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has 'message' => (is => 'ro', isa => Str, required => 1); |
15
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has 'details' => (is => 'ro', isa => HashRef, default => sub { +{} }); |
16
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has 'uri' => (is => 'ro', isa => Str); |
17
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} |
18
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19
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package AtteanX::Endpoint::Error { |
20
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2
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2
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734
|
use Moo; |
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2
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2
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2
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8
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21
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extends 'AtteanX::Error'; |
22
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2
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2
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425
|
use Types::Standard qw(Int); |
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2
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4
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2
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9
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23
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2
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2
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597
|
use namespace::clean; |
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2
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2
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2
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7
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24
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has 'code' => (is => 'ro', isa => Int, required => 1); |
25
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} |
26
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27
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package AtteanX::Endpoint::ClientError { |
28
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2
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2
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536
|
use Moo; |
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2
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3
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2
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6
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29
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|
extends 'AtteanX::Endpoint::Error'; |
30
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2
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2
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393
|
use Types::Standard qw(Int); |
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2
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2
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2
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8
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31
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2
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2
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537
|
use namespace::clean; |
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2
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3
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2
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7
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32
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33
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has 'code' => (is => 'ro', isa => Int, default => 400); |
34
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} |
35
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36
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|
package AtteanX::Endpoint::ServerError { |
37
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2
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2
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825
|
use Moo; |
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2
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2
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2
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14
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38
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|
extends 'AtteanX::Endpoint::Error'; |
39
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2
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2
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|
368
|
use Types::Standard qw(Int); |
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2
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3
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2
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7
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40
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2
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2
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|
541
|
use namespace::clean; |
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2
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2
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2
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7
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41
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42
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has 'code' => (is => 'ro', isa => Int, default => 500); |
43
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} |
44
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45
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|
package Plack::App::AtteanX::Endpoint 0.001 { |
46
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2
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2
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1001
|
use parent qw(Plack::Component); |
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2
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232
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2
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11
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|
47
|
2
|
|
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2
|
|
12208
|
use Plack::Request; |
|
2
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|
68944
|
|
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2
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|
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351
|
|
48
|
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49
|
|
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|
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|
sub configure { |
50
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0
|
|
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0
|
|
|
my $self = shift; |
51
|
0
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|
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|
$self->{config} = shift; |
52
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0
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|
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|
|
|
return $self; |
53
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} |
54
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55
|
|
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|
sub prepare_app { |
56
|
0
|
|
|
0
|
|
|
my $self = shift; |
57
|
0
|
|
|
|
|
|
my $config = $self->{config}; |
58
|
0
|
|
|
|
|
|
$self->{endpoint} = eval { AtteanX::Endpoint->new( $config ) }; |
|
0
|
|
|
|
|
|
|
59
|
0
|
0
|
|
|
|
|
if ($@) { |
60
|
0
|
|
|
|
|
|
warn $@; |
61
|
|
|
|
|
|
|
} |
62
|
|
|
|
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|
|
} |
63
|
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64
|
|
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|
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|
|
sub call { |
65
|
0
|
|
|
0
|
|
|
my($self, $env) = @_; |
66
|
0
|
|
|
|
|
|
my $req = Plack::Request->new($env); |
67
|
0
|
0
|
|
|
|
|
unless ($req->method =~ /^(GET|HEAD|POST)$/) { |
68
|
0
|
|
|
|
|
|
return [ 405, [ 'Content-type', 'text/plain' ], [ 'Method not allowed' ] ]; |
69
|
|
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|
|
|
} |
70
|
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|
|
|
|
|
71
|
0
|
|
|
|
|
|
my $ep = $self->{endpoint}; |
72
|
0
|
|
|
|
|
|
my $resp = $ep->run( $req ); |
73
|
0
|
|
|
|
|
|
return $resp->finalize; |
74
|
|
|
|
|
|
|
} |
75
|
|
|
|
|
|
|
} |
76
|
|
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|
77
|
|
|
|
|
|
|
=head1 NAME |
78
|
|
|
|
|
|
|
|
79
|
|
|
|
|
|
|
AtteanX::Endpoint - SPARQL 1.1 Protocol Endpoint |
80
|
|
|
|
|
|
|
|
81
|
|
|
|
|
|
|
=head1 VERSION |
82
|
|
|
|
|
|
|
|
83
|
|
|
|
|
|
|
This document describes AtteanX::Endpoint version 0.001 |
84
|
|
|
|
|
|
|
|
85
|
|
|
|
|
|
|
=head1 SYNOPSIS |
86
|
|
|
|
|
|
|
|
87
|
|
|
|
|
|
|
use v5.14; |
88
|
|
|
|
|
|
|
use Attean; |
89
|
|
|
|
|
|
|
|
90
|
|
|
|
|
|
|
=head1 DESCRIPTION |
91
|
|
|
|
|
|
|
|
92
|
|
|
|
|
|
|
The AtteanX::Endpoint class implements a PSGI SPARQL Protocol endpoint. |
93
|
|
|
|
|
|
|
|
94
|
|
|
|
|
|
|
=head1 ATTRIBUTES |
95
|
|
|
|
|
|
|
|
96
|
|
|
|
|
|
|
=over 4 |
97
|
|
|
|
|
|
|
|
98
|
|
|
|
|
|
|
=item C<< planner >> |
99
|
|
|
|
|
|
|
|
100
|
|
|
|
|
|
|
=item C<< model >> |
101
|
|
|
|
|
|
|
|
102
|
|
|
|
|
|
|
=item C<< conf >> |
103
|
|
|
|
|
|
|
|
104
|
|
|
|
|
|
|
A hash reference containing configuration data for the endpoint. For example: |
105
|
|
|
|
|
|
|
|
106
|
|
|
|
|
|
|
{ |
107
|
|
|
|
|
|
|
endpoint => { |
108
|
|
|
|
|
|
|
service_description => { |
109
|
|
|
|
|
|
|
named_graphs => 1, |
110
|
|
|
|
|
|
|
default => 1, |
111
|
|
|
|
|
|
|
}, |
112
|
|
|
|
|
|
|
html => { |
113
|
|
|
|
|
|
|
embed_images => 1, |
114
|
|
|
|
|
|
|
image_width => 200, |
115
|
|
|
|
|
|
|
resource_links => 1, |
116
|
|
|
|
|
|
|
}, |
117
|
|
|
|
|
|
|
load_data => 0, |
118
|
|
|
|
|
|
|
update => 0, |
119
|
|
|
|
|
|
|
} |
120
|
|
|
|
|
|
|
} |
121
|
|
|
|
|
|
|
|
122
|
|
|
|
|
|
|
=item C<< graph >> |
123
|
|
|
|
|
|
|
|
124
|
|
|
|
|
|
|
The L<Attean::API::IRI> of the graph in the model that represents the default graph. |
125
|
|
|
|
|
|
|
|
126
|
|
|
|
|
|
|
=back |
127
|
|
|
|
|
|
|
|
128
|
|
|
|
|
|
|
=head1 METHODS |
129
|
|
|
|
|
|
|
|
130
|
|
|
|
|
|
|
=over 4 |
131
|
|
|
|
|
|
|
|
132
|
|
|
|
|
|
|
=cut |
133
|
|
|
|
|
|
|
|
134
|
|
|
|
|
|
|
package AtteanX::Endpoint { |
135
|
2
|
|
|
2
|
|
2
|
use Moo; |
|
2
|
|
|
|
|
16
|
|
136
|
2
|
|
|
2
|
|
967
|
use Attean; |
|
2
|
|
|
|
|
755417
|
|
|
2
|
|
|
|
|
12
|
|
137
|
2
|
|
|
2
|
|
861
|
use TryCatch; |
|
2
|
|
|
|
|
1678119
|
|
|
2
|
|
|
|
|
9
|
|
138
|
2
|
|
|
2
|
|
1655
|
use JSON; |
|
2
|
|
|
|
|
13707
|
|
|
2
|
|
|
|
|
7
|
|
139
|
2
|
|
|
2
|
|
207
|
use Encode; |
|
2
|
|
|
|
|
2
|
|
|
2
|
|
|
|
|
162
|
|
140
|
2
|
|
|
2
|
|
9
|
use Plack::Request; |
|
2
|
|
|
|
|
2
|
|
|
2
|
|
|
|
|
35
|
|
141
|
2
|
|
|
2
|
|
737
|
use Plack::Response; |
|
2
|
|
|
|
|
5022
|
|
|
2
|
|
|
|
|
49
|
|
142
|
2
|
|
|
2
|
|
11
|
use Scalar::Util qw(blessed refaddr); |
|
2
|
|
|
|
|
2
|
|
|
2
|
|
|
|
|
92
|
|
143
|
2
|
|
|
2
|
|
9
|
use List::MoreUtils qw(any); |
|
2
|
|
|
|
|
2
|
|
|
2
|
|
|
|
|
21
|
|
144
|
2
|
|
|
2
|
|
1511
|
use File::ShareDir qw(dist_dir); |
|
2
|
|
|
|
|
7861
|
|
|
2
|
|
|
|
|
165
|
|
145
|
2
|
|
|
2
|
|
12
|
use HTTP::Negotiate qw(choose); |
|
2
|
|
|
|
|
2
|
|
|
2
|
|
|
|
|
83
|
|
146
|
2
|
|
|
2
|
|
1050
|
use IO::Compress::Gzip qw(gzip); |
|
2
|
|
|
|
|
45337
|
|
|
2
|
|
|
|
|
122
|
|
147
|
2
|
|
|
2
|
|
905
|
use HTML::HTML5::Parser; |
|
0
|
|
|
|
|
|
|
|
0
|
|
|
|
|
|
|
148
|
|
|
|
|
|
|
use HTML::HTML5::Writer qw(DOCTYPE_XHTML_RDFA); |
149
|
|
|
|
|
|
|
use Carp qw(croak); |
150
|
|
|
|
|
|
|
use Types::Standard qw(ConsumerOf CodeRef HashRef ArrayRef Str Int); |
151
|
|
|
|
|
|
|
# use IO::Handle; |
152
|
|
|
|
|
|
|
# use Digest::MD5 qw(md5_base64); |
153
|
|
|
|
|
|
|
# use XML::LibXML 1.70; |
154
|
|
|
|
|
|
|
# use RDF::RDFa::Generator 0.102; |
155
|
|
|
|
|
|
|
# use Hash::Merge::Simple qw/ merge /; |
156
|
|
|
|
|
|
|
# use Fcntl qw(:flock SEEK_END); |
157
|
|
|
|
|
|
|
use namespace::clean; |
158
|
|
|
|
|
|
|
|
159
|
|
|
|
|
|
|
our $VERSION = 0.001; |
160
|
|
|
|
|
|
|
|
161
|
|
|
|
|
|
|
with 'MooX::Log::Any'; |
162
|
|
|
|
|
|
|
|
163
|
|
|
|
|
|
|
has 'planner' => ( |
164
|
|
|
|
|
|
|
is => 'ro', |
165
|
|
|
|
|
|
|
isa => ConsumerOf['Attean::API::QueryPlanner'], |
166
|
|
|
|
|
|
|
required => 1, |
167
|
|
|
|
|
|
|
default => sub { |
168
|
|
|
|
|
|
|
Attean::IDPQueryPlanner->new(); |
169
|
|
|
|
|
|
|
} |
170
|
|
|
|
|
|
|
); |
171
|
|
|
|
|
|
|
has 'model' => (is => 'ro', isa => ConsumerOf['Attean::API::Model'], required => 1); |
172
|
|
|
|
|
|
|
has 'conf' => (is => 'ro', isa => HashRef, required => 1); |
173
|
|
|
|
|
|
|
has 'graph' => (is => 'ro', isa => ConsumerOf['Attean::API::IRI'], required => 1); |
174
|
|
|
|
|
|
|
|
175
|
|
|
|
|
|
|
sub BUILDARGS { |
176
|
|
|
|
|
|
|
my $class = shift; |
177
|
|
|
|
|
|
|
my @params = @_; |
178
|
|
|
|
|
|
|
my %args; |
179
|
|
|
|
|
|
|
if (blessed($params[0]) and $params[0]->does('Attean::API::Model')) { |
180
|
|
|
|
|
|
|
# ->new( $model, \%conf ) |
181
|
|
|
|
|
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|
$args{ model } = shift @params; |
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$args{ conf } = shift @params; |
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$args{ graph } = Attean::IRI->new('http://example.org/graph'); |
184
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} elsif (any { blessed($_) && $_->does('Attean::API::Model') } @params) { |
185
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# Assume the buildargs can be taken directly |
186
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return $class->SUPER::BUILDARGS(@params); |
187
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} else { |
188
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# ->new( \%conf ) |
189
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my $conf = shift @params; |
190
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my $store_conf = $conf->{store}; |
191
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my ($name, $file) = split(';', $store_conf, 2); |
192
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my $sclass = Attean->get_store($name)->new(); |
193
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my $store = $sclass->new(); |
194
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my $model = Attean::MutableQuadModel->new( store => $store ); |
195
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196
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my $graph = Attean::IRI->new('http://example.org/graph'); |
197
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if (defined($file) and length($file)) { |
198
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$graph = Attean::IRI->new('file://' . File::Spec->rel2abs($file)); |
199
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open(my $fh, '<:encoding(UTF-8)', $file) or die $!; |
200
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#$self->log->debug("Parsing data from $file..."); |
201
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my $pclass = Attean->get_parser( filename => $file ) // 'AtteanX::Parser::Turtle'; |
202
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my $parser = $pclass->new(base => $graph); |
203
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my $iter = $parser->parse_iter_from_io($fh); |
204
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my $quads = $iter->as_quads($graph); |
205
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$model->add_iter($quads); |
206
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} |
207
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208
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$args{ model } = $model; |
209
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$args{ conf } = $conf; |
210
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$args{ graph } = $graph; |
211
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} |
212
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213
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return $class->SUPER::BUILDARGS(%args); |
214
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} |
215
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216
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=item C<< run ( $request ) >> |
217
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218
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Run the SPARQL request contained in the given C<< $request >> object and return |
219
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a response object. |
220
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221
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=cut |
222
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223
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sub run { |
224
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my $self = shift; |
225
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my $req = shift; |
226
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try { |
227
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return $self->_run($req, @_); |
228
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} |
229
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|
catch (AtteanX::Endpoint::Error $e) { |
230
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|
my $resp = Plack::Response->new; |
231
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my $code = $e->code; |
232
|
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my $status = $e->message; |
233
|
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my $error = { |
234
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title => $status, |
235
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describedby => $e->uri, |
236
|
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|
}; |
237
|
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|
|
if (my $d = $e->details) { |
238
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|
|
$error->{details} = $d; |
239
|
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|
} |
240
|
|
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|
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|
|
my @variants = ( |
241
|
|
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|
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|
|
['text/plain', 0.98, 'text/plain'], |
242
|
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|
['application/json-problem', 0.99, 'application/json-problem'], |
243
|
|
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|
); |
244
|
|
|
|
|
|
|
my $headers = $req->headers; |
245
|
|
|
|
|
|
|
my $stype = choose( \@variants, $headers ) || 'text/plain'; |
246
|
|
|
|
|
|
|
if ($stype eq 'application/json-problem') { |
247
|
|
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|
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|
|
$resp->headers->content_type( 'application/json-problem' ); |
248
|
|
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|
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|
|
$resp->status($code); |
249
|
|
|
|
|
|
|
my $content = encode_json($error); |
250
|
|
|
|
|
|
|
$resp->body($content); |
251
|
|
|
|
|
|
|
} else { |
252
|
|
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|
|
|
|
$resp->headers->content_type( 'text/plain' ); |
253
|
|
|
|
|
|
|
$resp->status($code); |
254
|
|
|
|
|
|
|
my @messages = grep { defined($_) } @{ $error }{ qw(title detail) }; |
255
|
|
|
|
|
|
|
my $content = join("\n\n", $status, @messages); |
256
|
|
|
|
|
|
|
$resp->body($content); |
257
|
|
|
|
|
|
|
} |
258
|
|
|
|
|
|
|
return $resp; |
259
|
|
|
|
|
|
|
} |
260
|
|
|
|
|
|
|
} |
261
|
|
|
|
|
|
|
|
262
|
|
|
|
|
|
|
sub _run { |
263
|
|
|
|
|
|
|
my $self = shift; |
264
|
|
|
|
|
|
|
my $req = shift; |
265
|
|
|
|
|
|
|
|
266
|
|
|
|
|
|
|
my $config = $self->{conf}; |
267
|
|
|
|
|
|
|
my $endpoint_path = $config->{endpoint}{endpoint_path} || '/sparql'; |
268
|
|
|
|
|
|
|
my $model = $self->{model}; |
269
|
|
|
|
|
|
|
|
270
|
|
|
|
|
|
|
my $response = Plack::Response->new; |
271
|
|
|
|
|
|
|
|
272
|
|
|
|
|
|
|
our $VERSION; |
273
|
|
|
|
|
|
|
my $server = "AtteanX::Endpoint/$VERSION"; |
274
|
|
|
|
|
|
|
$server .= " " . $response->headers->header('Server') if defined($response->headers->header('Server')); |
275
|
|
|
|
|
|
|
$response->headers->header('Server' => $server); |
276
|
|
|
|
|
|
|
|
277
|
|
|
|
|
|
|
unless ($req->path eq $endpoint_path) { |
278
|
|
|
|
|
|
|
my $content; |
279
|
|
|
|
|
|
|
my $path = $req->path_info; |
280
|
|
|
|
|
|
|
$path =~ s#^/##; |
281
|
|
|
|
|
|
|
my $dir = $ENV{ATTEAN_ENDPOINT_SHAREDIR} || File::Spec->catdir((eval { dist_dir('AtteanX-Endpoint') } || 'share'), 'endpoint'); |
282
|
|
|
|
|
|
|
my $abs = File::Spec->rel2abs($dir); |
283
|
|
|
|
|
|
|
my $file = File::Spec->catfile($abs, 'www', $path); |
284
|
|
|
|
|
|
|
if (-r $file) { |
285
|
|
|
|
|
|
|
open( my $fh, '<', $file ) or croak $!; |
286
|
|
|
|
|
|
|
$response->status(200); |
287
|
|
|
|
|
|
|
$content = $fh; |
288
|
|
|
|
|
|
|
} else { |
289
|
|
|
|
|
|
|
my $path = $req->path; |
290
|
|
|
|
|
|
|
$response->status(404); |
291
|
|
|
|
|
|
|
$content = <<"END"; |
292
|
|
|
|
|
|
|
<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">\n<html><head>\n<title>404 Not Found</title>\n</head><body>\n |
293
|
|
|
|
|
|
|
<h1>Not Found</h1>\n<p>The requested URL $path was not found on this server.</p>\n</body></html> |
294
|
|
|
|
|
|
|
END |
295
|
|
|
|
|
|
|
} |
296
|
|
|
|
|
|
|
$response->body($content); |
297
|
|
|
|
|
|
|
return $response; |
298
|
|
|
|
|
|
|
} |
299
|
|
|
|
|
|
|
|
300
|
|
|
|
|
|
|
my $headers = $req->headers; |
301
|
|
|
|
|
|
|
my $type = $headers->header('Accept') || 'application/sparql-results+xml'; |
302
|
|
|
|
|
|
|
if (my $t = $req->param('media-type')) { |
303
|
|
|
|
|
|
|
$type = $t; |
304
|
|
|
|
|
|
|
$headers->header('Accept' => $type); |
305
|
|
|
|
|
|
|
} |
306
|
|
|
|
|
|
|
|
307
|
|
|
|
|
|
|
my $ae = $req->headers->header('Accept-Encoding') || ''; |
308
|
|
|
|
|
|
|
|
309
|
|
|
|
|
|
|
my $sparql; |
310
|
|
|
|
|
|
|
my $content; |
311
|
|
|
|
|
|
|
my $ct = $req->header('Content-type'); |
312
|
|
|
|
|
|
|
if ($req->method !~ /^(GET|POST)$/i) { |
313
|
|
|
|
|
|
|
my $method = uc($req->method); |
314
|
|
|
|
|
|
|
$content = "Unexpected method $method (expecting GET or POST)"; |
315
|
|
|
|
|
|
|
$self->log_error( $req, $content ); |
316
|
|
|
|
|
|
|
$response->header('Allow' => 'GET, POST'); |
317
|
|
|
|
|
|
|
die AtteanX::Endpoint::ClientError->new(code => 405, message => 'Method not allowed', uri => 'http://id.kasei.us/rdf-endpoint/error/bad_http_method'); |
318
|
|
|
|
|
|
|
} elsif (defined($ct) and $ct eq 'application/sparql-query') { |
319
|
|
|
|
|
|
|
$sparql = $req->content; |
320
|
|
|
|
|
|
|
} elsif (defined($ct) and $ct eq 'application/sparql-update') { |
321
|
|
|
|
|
|
|
if ($config->{endpoint}{update} and $req->method eq 'POST') { |
322
|
|
|
|
|
|
|
$sparql = $req->content; |
323
|
|
|
|
|
|
|
} |
324
|
|
|
|
|
|
|
} elsif ($req->param('query')) { |
325
|
|
|
|
|
|
|
my @sparql = $req->param('query'); |
326
|
|
|
|
|
|
|
if (scalar(@sparql) > 1) { |
327
|
|
|
|
|
|
|
$content = "More than one query string submitted"; |
328
|
|
|
|
|
|
|
$self->log_error( $req, $content ); |
329
|
|
|
|
|
|
|
die AtteanX::Endpoint::ClientError->new(code => 400, message => 'Multiple query strings not allowed', uri => 'http://id.kasei.us/rdf-endpoint/error/multiple_queries'); |
330
|
|
|
|
|
|
|
} else { |
331
|
|
|
|
|
|
|
$sparql = $sparql[0]; |
332
|
|
|
|
|
|
|
} |
333
|
|
|
|
|
|
|
} elsif ($req->param('update')) { |
334
|
|
|
|
|
|
|
my @sparql = $req->param('update'); |
335
|
|
|
|
|
|
|
if (scalar(@sparql) > 1) { |
336
|
|
|
|
|
|
|
$content = "More than one update string submitted"; |
337
|
|
|
|
|
|
|
$self->log_error( $req, $content ); |
338
|
|
|
|
|
|
|
die AtteanX::Endpoint::ClientError->new(code => 400, message => 'Multiple update strings not allowed', uri => 'http://id.kasei.us/rdf-endpoint/error/multiple_updates'); |
339
|
|
|
|
|
|
|
} |
340
|
|
|
|
|
|
|
|
341
|
|
|
|
|
|
|
if ($config->{endpoint}{update} and $req->method eq 'POST') { |
342
|
|
|
|
|
|
|
$sparql = $sparql[0]; |
343
|
|
|
|
|
|
|
} elsif ($req->method ne 'POST') { |
344
|
|
|
|
|
|
|
my $method = $req->method; |
345
|
|
|
|
|
|
|
$content = "Update operations must use POST"; |
346
|
|
|
|
|
|
|
$self->log_error( $req, $content ); |
347
|
|
|
|
|
|
|
$response->header('Allow' => 'POST'); |
348
|
|
|
|
|
|
|
die AtteanX::Endpoint::ClientError->new(code => 405, message => "$method Not Allowed for Update Operation", uri => 'http://id.kasei.us/rdf-endpoint/error/bad_http_method_update'); |
349
|
|
|
|
|
|
|
} |
350
|
|
|
|
|
|
|
} |
351
|
|
|
|
|
|
|
|
352
|
|
|
|
|
|
|
if ($sparql) { |
353
|
|
|
|
|
|
|
my %args; |
354
|
|
|
|
|
|
|
$args{ update } = 1 if ($config->{endpoint}{update} and $req->method eq 'POST'); |
355
|
|
|
|
|
|
|
$args{ load_data } = 1 if ($config->{endpoint}{load_data}); |
356
|
|
|
|
|
|
|
|
357
|
|
|
|
|
|
|
my $protocol_specifies_update_dataset = 0; |
358
|
|
|
|
|
|
|
{ |
359
|
|
|
|
|
|
|
my @default = $req->param('default-graph-uri'); |
360
|
|
|
|
|
|
|
my @named = $req->param('named-graph-uri'); |
361
|
|
|
|
|
|
|
if (scalar(@default) or scalar(@named)) { |
362
|
|
|
|
|
|
|
delete $args{ load_data }; |
363
|
|
|
|
|
|
|
# TODO: handle custom-dataset |
364
|
|
|
|
|
|
|
$self->log->warn('custom query datasets not supported yet'); |
365
|
|
|
|
|
|
|
# $model = Attean::MutableQuadModel->new( store => Attean->get_store('Memory')->new() ); |
366
|
|
|
|
|
|
|
# foreach my $url (@named) { |
367
|
|
|
|
|
|
|
# RDF::Trine::Parser->parse_url_into_model( $url, $model, context => iri($url) ); |
368
|
|
|
|
|
|
|
# } |
369
|
|
|
|
|
|
|
# foreach my $url (@default) { |
370
|
|
|
|
|
|
|
# RDF::Trine::Parser->parse_url_into_model( $url, $model ); |
371
|
|
|
|
|
|
|
# } |
372
|
|
|
|
|
|
|
} |
373
|
|
|
|
|
|
|
} |
374
|
|
|
|
|
|
|
|
375
|
|
|
|
|
|
|
{ |
376
|
|
|
|
|
|
|
my @default = $req->param('using-graph-uri'); |
377
|
|
|
|
|
|
|
my @named = $req->param('using-named-graph-uri'); |
378
|
|
|
|
|
|
|
if (scalar(@named) or scalar(@default)) { |
379
|
|
|
|
|
|
|
$protocol_specifies_update_dataset = 1; |
380
|
|
|
|
|
|
|
# TODO: handle custom-dataset |
381
|
|
|
|
|
|
|
$self->log->warn('custom update datasets not supported yet'); |
382
|
|
|
|
|
|
|
# $model = RDF::Trine::Model::Dataset->new( $model ); |
383
|
|
|
|
|
|
|
# $model->push_dataset( default => \@default, named => \@named ); |
384
|
|
|
|
|
|
|
} |
385
|
|
|
|
|
|
|
} |
386
|
|
|
|
|
|
|
|
387
|
|
|
|
|
|
|
# my $match = $headers->header('if-none-match') || ''; |
388
|
|
|
|
|
|
|
# my $etag = md5_base64( join('#', $self->run_tag, $model->etag, $type, $ae, $sparql) ); |
389
|
|
|
|
|
|
|
# if (length($match)) { |
390
|
|
|
|
|
|
|
# if (defined($etag) and ($etag eq $match)) { |
391
|
|
|
|
|
|
|
# $response->status(304); |
392
|
|
|
|
|
|
|
# return $response; |
393
|
|
|
|
|
|
|
# } |
394
|
|
|
|
|
|
|
# } |
395
|
|
|
|
|
|
|
|
396
|
|
|
|
|
|
|
my $base = $req->base; |
397
|
|
|
|
|
|
|
my $parser = Attean->get_parser('SPARQL')->new(base => $base); |
398
|
|
|
|
|
|
|
$parser->update(1) if ($args{update}); |
399
|
|
|
|
|
|
|
my ($algebra) = eval { $args{update} ? $parser->parse_update($sparql, base => $base) : $parser->parse($sparql, base => $base) }; |
400
|
|
|
|
|
|
|
if ($@ or not($algebra)) { |
401
|
|
|
|
|
|
|
my $error = $@ || 'Internal error'; |
402
|
|
|
|
|
|
|
$self->log_error( $req, $error ); |
403
|
|
|
|
|
|
|
my $eclass = ($error =~ /Syntax/) ? 'AtteanX::Endpoint::ClientError' : 'AtteanX::Endpoint::ServerError'; |
404
|
|
|
|
|
|
|
if ($req->method ne 'POST' and $error =~ /read-only queries/sm) { |
405
|
|
|
|
|
|
|
$error = 'Updates must use a HTTP POST request.'; |
406
|
|
|
|
|
|
|
die $eclass->new(message => 'Updates must use a HTTP POST request', uri => 'http://id.kasei.us/rdf-endpoint/error/bad_http_method_update'); |
407
|
|
|
|
|
|
|
} else { |
408
|
|
|
|
|
|
|
die $eclass->new(message => 'SPARQL query/update parse error', uri => 'http://id.kasei.us/rdf-endpoint/error/parse_error', details => { error => $error, sparql => $sparql }); |
409
|
|
|
|
|
|
|
} |
410
|
|
|
|
|
|
|
} else { |
411
|
|
|
|
|
|
|
$self->log_query( $req, $sparql ); |
412
|
|
|
|
|
|
|
# TODO: handle case where query specifies update dataset |
413
|
|
|
|
|
|
|
# if ($protocol_specifies_update_dataset and $query->specifies_update_dataset) { |
414
|
|
|
|
|
|
|
# my $method = $req->method; |
415
|
|
|
|
|
|
|
# $content = "Update operations cannot specify a dataset in both the query and with protocol parameters"; |
416
|
|
|
|
|
|
|
# $self->log_error( $req, $content ); |
417
|
|
|
|
|
|
|
# die AtteanX::Endpoint::ClientError->new(code => 400, message => 'Multiple datasets specified for update', uri => 'http://id.kasei.us/rdf-endpoint/error/update_specifies_multiple_datasets'); |
418
|
|
|
|
|
|
|
# } |
419
|
|
|
|
|
|
|
if ($self->log->is_trace) { |
420
|
|
|
|
|
|
|
$self->log->trace("Algebra:\n" . $algebra->as_string); |
421
|
|
|
|
|
|
|
} |
422
|
|
|
|
|
|
|
my $graph = $self->graph; |
423
|
|
|
|
|
|
|
my $default_graphs = [$graph]; |
424
|
|
|
|
|
|
|
my $planner = $self->planner; |
425
|
|
|
|
|
|
|
if ($self->log->is_trace) { |
426
|
|
|
|
|
|
|
$self->log->debug('Planning with default graphs:'); |
427
|
|
|
|
|
|
|
foreach my $g (@$default_graphs) { |
428
|
|
|
|
|
|
|
$self->log->trace($g->as_string); |
429
|
|
|
|
|
|
|
} |
430
|
|
|
|
|
|
|
} |
431
|
|
|
|
|
|
|
my $plan = $planner->plan_for_algebra($algebra, $model, $default_graphs); |
432
|
|
|
|
|
|
|
if ($self->log->is_debug) { |
433
|
|
|
|
|
|
|
$self->log->debug("Plan:\n" . $plan->as_string); |
434
|
|
|
|
|
|
|
} |
435
|
|
|
|
|
|
|
eval { |
436
|
|
|
|
|
|
|
my $iter = $plan->evaluate($model); |
437
|
|
|
|
|
|
|
$response->status(200); |
438
|
|
|
|
|
|
|
my $sclass = Attean->negotiate_serializer(request_headers => $headers) // Attean->get_serializer('sparqlxml'); |
439
|
|
|
|
|
|
|
$self->log->debug("Serializer class: $sclass"); |
440
|
|
|
|
|
|
|
my $s = $sclass->new(); |
441
|
|
|
|
|
|
|
$content = $s->serialize_iter_to_bytes($iter); |
442
|
|
|
|
|
|
|
my $stype = $s->canonical_media_type; |
443
|
|
|
|
|
|
|
$response->headers->content_type($stype); |
444
|
|
|
|
|
|
|
}; |
445
|
|
|
|
|
|
|
if ($@) { |
446
|
|
|
|
|
|
|
my $error = $@; |
447
|
|
|
|
|
|
|
$self->log->fatal($error); |
448
|
|
|
|
|
|
|
die AtteanX::Endpoint::ServerError->new(code => 500, message => 'SPARQL query/update execution error', uri => 'http://id.kasei.us/rdf-endpoint/error/execution_error', details => { error => $@, sparql => $sparql }); |
449
|
|
|
|
|
|
|
} |
450
|
|
|
|
|
|
|
} |
451
|
|
|
|
|
|
|
} elsif ($req->method eq 'POST') { |
452
|
|
|
|
|
|
|
$content = "POST without recognized query or update"; |
453
|
|
|
|
|
|
|
$self->log_error( $req, $content ); |
454
|
|
|
|
|
|
|
die AtteanX::Endpoint::ClientError->new(message => 'Missing SPARQL Query/Update String', uri => 'http://id.kasei.us/rdf-endpoint/error/missing_sparql_string'); |
455
|
|
|
|
|
|
|
} else { |
456
|
|
|
|
|
|
|
my $stype = 'text/html'; |
457
|
|
|
|
|
|
|
my $dir = $ENV{ATTEAN_ENDPOINT_SHAREDIR} || File::Spec->catdir((eval { dist_dir('AtteanX-Endpoint') } || 'share'), 'endpoint'); |
458
|
|
|
|
|
|
|
my $template = File::Spec->catfile($dir, 'index.html'); |
459
|
|
|
|
|
|
|
my $parser = HTML::HTML5::Parser->new; |
460
|
|
|
|
|
|
|
my $doc = $parser->parse_file( $template ); |
461
|
|
|
|
|
|
|
# my $gen = RDF::RDFa::Generator->new( style => 'HTML::Head'); |
462
|
|
|
|
|
|
|
# $gen->inject_document($doc, $sdmodel); |
463
|
|
|
|
|
|
|
|
464
|
|
|
|
|
|
|
my $writer = HTML::HTML5::Writer->new( markup => 'xhtml', doctype => DOCTYPE_XHTML_RDFA ); |
465
|
|
|
|
|
|
|
$content = encode_utf8( $writer->document($doc) ); |
466
|
|
|
|
|
|
|
$response->status(200); |
467
|
|
|
|
|
|
|
$response->headers->content_type('text/html'); |
468
|
|
|
|
|
|
|
} |
469
|
|
|
|
|
|
|
|
470
|
|
|
|
|
|
|
$content = $response->body || $content; |
471
|
|
|
|
|
|
|
my $length = 0; |
472
|
|
|
|
|
|
|
my %ae = map { $_ => 1 } split(/\s*,\s*/, $ae); |
473
|
|
|
|
|
|
|
if ($ae{'gzip'}) { |
474
|
|
|
|
|
|
|
my $orig = length($content); |
475
|
|
|
|
|
|
|
my ($rh, $wh); |
476
|
|
|
|
|
|
|
pipe($rh, $wh); |
477
|
|
|
|
|
|
|
if (ref($content)) { |
478
|
|
|
|
|
|
|
gzip $content => $wh; |
479
|
|
|
|
|
|
|
} else { |
480
|
|
|
|
|
|
|
gzip \$content => $wh; |
481
|
|
|
|
|
|
|
} |
482
|
|
|
|
|
|
|
close($wh); |
483
|
|
|
|
|
|
|
my $body = do { local($/) = undef; <$rh> }; |
484
|
|
|
|
|
|
|
$self->log->info("Compressed $orig bytes to " . length($body) . " bytes"); |
485
|
|
|
|
|
|
|
$length = bytes::length($body); |
486
|
|
|
|
|
|
|
$response->headers->header('Content-Encoding' => 'gzip'); |
487
|
|
|
|
|
|
|
$response->headers->header('Content-Length' => $length); |
488
|
|
|
|
|
|
|
$response->body( $body ) unless ($req->method eq 'HEAD'); |
489
|
|
|
|
|
|
|
} else { |
490
|
|
|
|
|
|
|
local($/) = undef; |
491
|
|
|
|
|
|
|
my $body = ref($content) ? <$content> : $content; |
492
|
|
|
|
|
|
|
$length = bytes::length($body); |
493
|
|
|
|
|
|
|
$response->headers->header('Content-Length' => $length); |
494
|
|
|
|
|
|
|
$response->body( $body ) unless ($req->method eq 'HEAD'); |
495
|
|
|
|
|
|
|
} |
496
|
|
|
|
|
|
|
return $response; |
497
|
|
|
|
|
|
|
} |
498
|
|
|
|
|
|
|
|
499
|
|
|
|
|
|
|
=item C<< log_query ( $request, $sparql ) >> |
500
|
|
|
|
|
|
|
|
501
|
|
|
|
|
|
|
Log the C<< $sparql >> query string after having been parsed from the |
502
|
|
|
|
|
|
|
C<< $request >> but before evaluation. |
503
|
|
|
|
|
|
|
|
504
|
|
|
|
|
|
|
=cut |
505
|
|
|
|
|
|
|
|
506
|
|
|
|
|
|
|
sub log_query { |
507
|
|
|
|
|
|
|
my $self = shift; |
508
|
|
|
|
|
|
|
my $req = shift; |
509
|
|
|
|
|
|
|
my $message = shift; |
510
|
|
|
|
|
|
|
$self->log->info("SPARQL query:\n" . $message); |
511
|
|
|
|
|
|
|
$self->_log( $req, { level => 'info', message => $message } ); |
512
|
|
|
|
|
|
|
} |
513
|
|
|
|
|
|
|
|
514
|
|
|
|
|
|
|
=item C<< log_error ( $message ) >> |
515
|
|
|
|
|
|
|
|
516
|
|
|
|
|
|
|
=cut |
517
|
|
|
|
|
|
|
|
518
|
|
|
|
|
|
|
sub log_error { |
519
|
|
|
|
|
|
|
my $self = shift; |
520
|
|
|
|
|
|
|
my $req = shift; |
521
|
|
|
|
|
|
|
my $message = shift; |
522
|
|
|
|
|
|
|
$self->log->error($message); |
523
|
|
|
|
|
|
|
$self->_log( $req, { level => 'error', message => $message } ); |
524
|
|
|
|
|
|
|
} |
525
|
|
|
|
|
|
|
|
526
|
|
|
|
|
|
|
sub _log { |
527
|
|
|
|
|
|
|
my $self = shift; |
528
|
|
|
|
|
|
|
my $req = shift; |
529
|
|
|
|
|
|
|
my $data = shift; |
530
|
|
|
|
|
|
|
my $logger = $req->logger || sub {}; |
531
|
|
|
|
|
|
|
|
532
|
|
|
|
|
|
|
$logger->($data); |
533
|
|
|
|
|
|
|
} |
534
|
|
|
|
|
|
|
|
535
|
|
|
|
|
|
|
sub _set_response_error { |
536
|
|
|
|
|
|
|
my $self = shift; |
537
|
|
|
|
|
|
|
my $req = shift; |
538
|
|
|
|
|
|
|
my $resp = shift; |
539
|
|
|
|
|
|
|
my $code = shift; |
540
|
|
|
|
|
|
|
my $error = shift; |
541
|
|
|
|
|
|
|
my @variants = ( |
542
|
|
|
|
|
|
|
['text/plain', 1.0, 'text/plain'], |
543
|
|
|
|
|
|
|
['application/json-problem', 0.99, 'application/json-problem'], |
544
|
|
|
|
|
|
|
); |
545
|
|
|
|
|
|
|
my $headers = $req->headers; |
546
|
|
|
|
|
|
|
my $stype = choose( \@variants, $headers ) || 'text/plain'; |
547
|
|
|
|
|
|
|
if ($stype eq 'application/json-problem') { |
548
|
|
|
|
|
|
|
$resp->headers->content_type( 'application/json-problem' ); |
549
|
|
|
|
|
|
|
$resp->status($code); |
550
|
|
|
|
|
|
|
my $content = encode_json($error); |
551
|
|
|
|
|
|
|
$resp->body($content); |
552
|
|
|
|
|
|
|
} else { |
553
|
|
|
|
|
|
|
$resp->headers->content_type( 'text/plain' ); |
554
|
|
|
|
|
|
|
$resp->status($code); |
555
|
|
|
|
|
|
|
my @messages = grep { defined($_) } @{ $error }{ qw(title detail) }; |
556
|
|
|
|
|
|
|
my $content = join("\n\n", @messages); |
557
|
|
|
|
|
|
|
$resp->body($content); |
558
|
|
|
|
|
|
|
} |
559
|
|
|
|
|
|
|
return; |
560
|
|
|
|
|
|
|
} |
561
|
|
|
|
|
|
|
} |
562
|
|
|
|
|
|
|
|
563
|
|
|
|
|
|
|
1; |
564
|
|
|
|
|
|
|
|
565
|
|
|
|
|
|
|
__END__ |
566
|
|
|
|
|
|
|
|
567
|
|
|
|
|
|
|
=back |
568
|
|
|
|
|
|
|
|
569
|
|
|
|
|
|
|
=head1 BUGS |
570
|
|
|
|
|
|
|
|
571
|
|
|
|
|
|
|
Please report any bugs or feature requests to through the GitHub web interface |
572
|
|
|
|
|
|
|
at L<https://github.com/kasei/attean/issues>. |
573
|
|
|
|
|
|
|
|
574
|
|
|
|
|
|
|
=head1 SEE ALSO |
575
|
|
|
|
|
|
|
|
576
|
|
|
|
|
|
|
L<http://www.perlrdf.org/> |
577
|
|
|
|
|
|
|
|
578
|
|
|
|
|
|
|
=head1 AUTHOR |
579
|
|
|
|
|
|
|
|
580
|
|
|
|
|
|
|
Gregory Todd Williams C<< <gwilliams@cpan.org> >> |
581
|
|
|
|
|
|
|
|
582
|
|
|
|
|
|
|
=head1 COPYRIGHT |
583
|
|
|
|
|
|
|
|
584
|
|
|
|
|
|
|
Copyright (c) 2014 Gregory Todd Williams. |
585
|
|
|
|
|
|
|
This program is free software; you can redistribute it and/or modify it under |
586
|
|
|
|
|
|
|
the same terms as Perl itself. |
587
|
|
|
|
|
|
|
|
588
|
|
|
|
|
|
|
=cut |