/[Grep]/lib/Grep/Action/AddFeed.pm
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Contents of /lib/Grep/Action/AddFeed.pm

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Revision 26 - (show annotations)
Mon Feb 19 10:58:27 2007 UTC (17 years, 2 months ago) by dpavlin
File size: 2193 byte(s)
a sprinke of ajax magic and better detection of grep in search URIs
1 use strict;
2 use warnings;
3
4 =head1 NAME
5
6 Grep::Action::AddFeed
7
8 =cut
9
10 package Grep::Action::AddFeed;
11 use base qw/Grep::Action::CreateFeed/;
12
13 use Feed::Find;
14 use LWP::UserAgent;
15 use Data::Dump qw/dump/;
16
17 =head2 canonicalize_uri
18
19 Replace C<grep>' with C<%s> in URI arguments
20
21 =cut
22
23 sub canonicalize_uri {
24 my $self = shift;
25 my $value = shift;
26 warn "uri: $value";
27 if ($value =~ s/\bgrep\b/%s/) {
28 $self->canonicalization_note( uri => 'Replaced grep with %s' );
29 }
30 return $value;
31 }
32
33 =head2 canonicalize_cookie
34
35 Remove C<Cookie:> header from beginning and replace EOL with space.
36
37 =cut
38
39 # disabled for now
40 sub xx_canonicalize_cookie {
41 my $self = shift;
42 my $value = shift;
43
44 warn "cookie: $value";
45
46 $self->canonicalization_note( uri => 'Removed Cookie: header' )
47 if ($value =~ s/^Cookie:\s+//);
48
49 $self->canonicalization_note( uri => 'Converted EOL to space' )
50 if ($value =~ s/[\n\r]/ /gs);
51
52 return $value;
53 }
54 =head2 take_action
55
56 =cut
57
58 sub take_action {
59 my $self = shift;
60
61 my @ARGS = @_;
62
63 # Custom action code
64
65 my $ua = LWP::UserAgent->new;
66
67 my $cookie = $self->argument_value('cookie');
68 if ($cookie =~ s/{x!(26|3b)}/chr(hex($1))/gei) {
69 $self->argument_value('cookie', $cookie);
70 }
71
72 Jifty->log->debug("using cookie: $cookie");
73 $ua->default_header( 'Cookie' => $cookie );
74
75 my $search_moniker = 'grep';
76
77 my $uri = $self->argument_value('uri');
78 $uri =~ s/{x!(26|3b)}/chr(hex($1))/gei;
79
80 Jifty->log->debug("trying to find feed on $uri");
81
82 my @feeds = Feed::Find->find( sprintf( $uri, $search_moniker ), $ua );
83
84 if (@feeds) {
85
86 Jifty->log->info("found possible feeds: ", dump( @feeds ));
87
88 @feeds = map {
89 my $t = $_;
90 $t =~ s/\b$search_moniker\b/%s/;
91 $t
92 } grep(/\b$search_moniker\b/,@feeds);
93
94 $self->result->message('Found ' . @feeds . ' feeds, using first one. ' . join(" ", @feeds) );
95
96 $uri = shift @feeds;
97
98 $self->argument_value('uri', $uri);
99
100 Jifty->log->debug("calling parent take_action with new uri $uri");
101
102 $self->SUPER::take_action( @ARGS );
103
104 return 1;
105
106 } else {
107
108 my $r = $ua->get( sprintf( $uri, $search_moniker ) );
109 warn "no feeds in ", $r->content;
110
111 $self->result->error('No feeds found on supplied URI');
112 return 0;
113 }
114
115 }
116
117 1;
118

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