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wakaba |
1.1 |
#!/usr/bin/perl |
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use strict; |
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use warnings; |
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my $param = {}; |
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for (map {[split /=/, $_, 2]} split /[&;]/, $ENV{QUERY_STRING} || '') { |
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$param->{$_->[0]} = $_->[1]; |
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} |
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$param->{mode} ||= ''; |
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die unless $param->{date} =~ /\A[0-9]+\z/ or {list => 1, prev => 1, next => 1}->{$param->{mode}}; |
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my $dir_name = './canvas-data'; |
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my $data_file_name = sprintf '%s/data-%s.txt', $dir_name, $param->{date}; |
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my $data_file_name_pattern = qr[^data-([0-9]+)\.txt$]; |
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sub get_dates () { |
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my @date; |
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opendir my $dir, $dir_name or die "$0: $dir_name: $!"; |
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for (readdir $dir) { |
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if (/$data_file_name_pattern/) { |
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push @date, $1; |
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} |
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} |
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return sort {$a <=> $b} @date; |
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} |
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if ($ENV{REQUEST_METHOD} eq 'POST') { |
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die if $ENV{CONTENT_LENGTH} > 100_000; |
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open my $data_file, '>>', $data_file_name or die "$0: $data_file_name: $!"; |
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print $data_file 'time,', scalar time, "\x0A"; |
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read STDIN, my $data, $ENV{CONTENT_LENGTH}; |
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for (split /;/, $data) { |
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print $data_file $_, "\x0A"; |
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} |
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print "Status: 204 No Content\n\n"; |
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} elsif ($param->{mode} eq 'list') { |
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print "Content-Type: text/html\n\n"; |
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print q[<!DOCTYPE HTML><html lang=en><title>List</title>]; |
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print q[<meta name="viewport" content="width=device-width">]; |
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print q[<ul>]; |
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print q[<li><a href="client.html?mode=editor">new</a>]; |
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for my $date (reverse get_dates) { |
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printf q[<li>%s <a href="client.html?mode=viewer;date=%s">view</a> <a href="client.html?mode=editor;date=%s">edit</a>], |
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(scalar localtime ($date / 1000)), |
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$date, |
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$date; |
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} |
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print q[</ul>]; |
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} elsif ($param->{mode} eq 'next') { |
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for (get_dates) { |
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next if $_ <= $param->{date}; |
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my $mode = $ENV{HTTP_REFERER} =~ /viewer/ ? 'viewer' : 'editor'; |
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my $url = qq<http://$ENV{SERVER_NAME}$ENV{SCRIPT_NAME}/../client.html?mode=$mode;date=$_>; |
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$url =~ s/[^\x21-\x7E]/_/g; |
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print "Status: 302 Found\nLocation: $url\n\n"; |
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} |
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print "Status: 302 Found\nLocation: http://$ENV{SERVER_NAME}$ENV{SCRIPT_NAME}/../client.html?mode=editor\n\n"; |
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} elsif ($param->{mode} eq 'prev') { |
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my $date; |
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for (get_dates) { |
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last if $_ >= $param->{date}; |
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$date = $_; |
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} |
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if (defined $date) { |
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my $mode = $ENV{HTTP_REFERER} =~ /viewer/ ? 'viewer' : 'editor'; |
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my $url = qq<http://$ENV{SERVER_NAME}$ENV{SCRIPT_NAME}/../client.html?mode=$mode;date=$date>; |
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$url =~ s/[^\x21-\x7E]/_/g; |
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print "Status: 302 Found\nLocation: $url\n\n"; |
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} else { |
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print "Status: 204 Not Found\n\n"; |
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} |
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} else { |
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print "Content-Type: text/plain\n\n"; |
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open my $data_file, '<', $data_file_name or die "$0: $data_file_name: $!"; |
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while (<$data_file>) { |
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print $_; |
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} |
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} |
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