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# ex:ts=8 |
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package WWW::Scraper::ISBN::TWSilkbook_Driver; |
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use strict; |
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use warnings; |
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use vars qw($VERSION @ISA); |
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$VERSION = '0.02'; |
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#-------------------------------------------------------------------------- |
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=head1 NAME |
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WWW::Scraper::ISBN::TWSilkbook_Driver - Search driver for TWSilkbook' online catalog. |
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=head1 SYNOPSIS |
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See parent class documentation (L) |
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=head1 DESCRIPTION |
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Searches for book information from the TWSilkbook' online catalog. |
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=cut |
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#-------------------------------------------------------------------------- |
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########################################################################### |
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#Library Modules # |
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########################################################################### |
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use WWW::Scraper::ISBN::Driver; |
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use WWW::Mechanize; |
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use Template::Extract; |
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use Text::Iconv; |
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########################################################################### |
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#Constants # |
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########################################################################### |
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use constant QUERY => 'http://www.silkbook.com/function/Search_List_Book.asp?item=5&text=%s'; |
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#-------------------------------------------------------------------------- |
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########################################################################### |
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#Inheritence # |
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########################################################################### |
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@ISA = qw(WWW::Scraper::ISBN::Driver); |
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########################################################################### |
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#Interface Functions # |
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########################################################################### |
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=head1 METHODS |
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=over 4 |
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=item C |
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Creates a query string, then passes the appropriate form fields to the Silkbook |
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server. |
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The returned page should be the correct catalog page for that ISBN. If not the |
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function returns zero and allows the next driver in the chain to have a go. If |
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a valid page is returned, the following fields are returned via the book hash: |
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isbn |
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title |
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author |
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pages |
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book_link |
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image_link |
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pubdate |
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publisher |
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price_list |
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price_sell |
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The book_link and image_link refer back to the Silkbook website. |
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82
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=back |
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=cut |
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86
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sub search { |
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1
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1
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1350
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my $self = shift; |
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1
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3
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my $isbn = shift; |
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1
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10
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$self->found(0); |
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1
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$self->book(undef); |
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1
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14
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my $url = sprintf(QUERY, $isbn); |
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1
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8
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my $mechanize = WWW::Mechanize->new(); |
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1
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18149
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$mechanize->get($url); |
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0
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0
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return undef unless($mechanize->success()); |
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97
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# The Search Results page |
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0
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my $template = <
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100
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101
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END |
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103
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0
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my $extract = Template::Extract->new; |
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0
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my $data = $extract->extract($template, $mechanize->content()); |
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0
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return $self->handler("Could not extract data from TWSilkbook result page.") |
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unless(defined $data); |
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my $book = $data->{book}; |
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0
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$mechanize->get($book); |
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112
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0
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$template = <
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114
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115
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[% author %] |
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[% publisher %] [% ... %] |
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[% pubdate %] [% ... %] |
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[% pages %][% ... %] |
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[% price_list %][% ... %] |
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[% ... %][% price_sell %] |
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END |
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0
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$data = $extract->extract($template, $mechanize->content()); |
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0
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return $self->handler("Could not extract data from TWSilkbook result page.") |
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unless(defined $data); |
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0
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my $conv = Text::Iconv->new("utf-8", "big5"); |
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$data->{title} = $conv->convert($data->{title}); |
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$data->{author} = $conv->convert($data->{author}); |
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$data->{author} =~ s/^.*ĄG(\S+) .*$/$1/s; |
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0
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$data->{publisher} = $conv->convert($data->{publisher}); |
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$data->{publisher} =~ s/^.*ĄG(.*)$/$1/; |
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$data->{pubdate} = $conv->convert($data->{pubdate}); |
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$data->{pubdate} =~ s/^.*ĄG(.*)$/$1/; |
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0
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my $bk = { |
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'isbn' => $isbn, |
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'title' => $data->{title}, |
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'author' => $data->{author}, |
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'pages' => $data->{pages}, |
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'book_link' => $book, |
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'image_link' => "http://www.silkbook.com".$data->{image_link}, |
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'pubdate' => $data->{pubdate}, |
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'publisher' => $data->{publisher}, |
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'price_list' => $data->{price_list}, |
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'price_sell' => $data->{price_sell}, |
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}; |
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$self->book($bk); |
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$self->found(1); |
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return $self->book; |
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} |
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1; |
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__END__ |
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