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# ex:ts=8 |
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package WWW::Scraper::ISBN::TWSrbook_Driver; |
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use strict; |
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use warnings; |
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use vars qw($VERSION @ISA); |
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60
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$VERSION = '0.01'; |
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#-------------------------------------------------------------------------- |
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=head1 NAME |
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WWW::Scraper::ISBN::TWSrbook_Driver - Search driver for TWSrbook's 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 TWSrbook's 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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0
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use Template::Extract; |
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use Data::Dumper; |
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########################################################################### |
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#Constants # |
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########################################################################### |
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use constant QUERY => 'http://www.srbook.com.tw/web/showbook.dox?id=%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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61
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=item C |
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63
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Creates a query string, then passes the appropriate form fields to the Srbook |
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server. |
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66
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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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68
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a valid page is returned, the following fields are returned via the book hash: |
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70
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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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80
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81
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The book_link and image_link refer back to the Books website. |
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82
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83
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=back |
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85
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=cut |
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86
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87
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sub search { |
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88
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my $self = shift; |
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my $isbn = shift; |
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90
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$self->found(0); |
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91
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$self->book(undef); |
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92
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93
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my $url = sprintf(QUERY, $isbn); |
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94
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my $mechanize = WWW::Mechanize->new(); |
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$mechanize->get( $url ); |
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96
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return undef unless($mechanize->success()); |
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97
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98
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# The Search Results page |
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99
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my $template = <
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100
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[% title %][% ... %] |
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101
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作者:[% ... %] [% author %]著[% ... %] |
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102
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ISBN碼: [% isbn %][% ... %] |
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103
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出版社:[% ... %] [% publisher %][% ... %] |
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104
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頁數:[% ... %] [% pages %][% ... %] |
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105
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定價:[% ... %] [% price_list %][% ... %] |
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106
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特價:[% ... %][% price_sell %][% ... %] |
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107
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出版年月:[% ... %] [% pubdate %] |
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END |
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109
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110
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my $extract = Template::Extract->new; |
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111
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my $data = $extract->extract($template, $mechanize->content()); |
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112
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113
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return $self->handler("Could not extract data from TWSrbook result page.") |
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114
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unless(defined $data); |
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115
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116
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$data->{price_sell} =~ s/^\$\s*(\d+)\s*$/$1/; |
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117
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118
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my $bk = { |
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'isbn' => $data->{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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123
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'book_link' => $mechanize->uri(), |
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'image_link' => "http://www.srbook.com.tw/web/show_pic_s.dox?id=$isbn", |
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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' => $data->{price_sell}, |
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}; |
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131
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$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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136
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1; |
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__END__ |