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#!/usr/bin/perl |
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binmode STDOUT, ":utf8"; |
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use warnings; |
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use strict; |
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use JSON; |
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my $THREAD_NO; |
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my $URL_PREFIX; |
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my $FN; |
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my $OUT_DIR; |
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my %jh; |
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my @a1; |
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$URL_PREFIX = "https://lainchan.org/lit/src/"; |
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$THREAD_NO = 4953; |
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$FN = "$THREAD_NO.json"; |
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$OUT_DIR = "./dl/"; |
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# Read JSON with list of files |
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open FILE, "<", $FN or die "could not open file"; |
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do{ |
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my $json_str; |
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local $/=undef; |
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$json_str = <FILE>; |
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chomp $json_str; |
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%jh = %{JSON->new()->decode($json_str)}; |
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}; |
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close FILE; |
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# anonymous function that returns a list |
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# of tuples of the below form: |
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# (file_name, file_url) |
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@a1 = sub{ |
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my @a0; |
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my @a2; |
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my $f1; |
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# filters for file types we |
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# dont want to downloads |
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sub f1 { |
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return $_[0]->{"ext"} && !($_[0]->{"ext"} =~ /jpe?g/); |
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} |
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sub f2 { |
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return !($_[0]->{"ext"} =~ /png/); |
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} |
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sub f3 { |
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return !($_[0]->{"ext"} =~ /gif/); |
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} |
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sub f4 { |
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return !($_[0]->{"ext"} =~ /webm/); |
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} |
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sub f0 { |
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return f1($_[0]) && f2($_[0]) && f3($_[0]) && f4($_[0]) |
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} |
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# create an array of files |
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# that meet our file ext requirement |
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@a0 = grep {f0($_)} @{$jh{"posts"}}; |
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# do the same filter on the |
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# extra_files attribute |
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@a2 = grep { |
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f0($_) |
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} map { |
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@{$_->{"extra_files"}} |
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} grep { |
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$_->{"extra_files"} |
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} @{$jh{"posts"}}; |
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# Return our tuple |
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return map { |
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[ |
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sprintf("%s%s", $_->{"filename"}, $_->{"ext"}), # file_name |
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sprintf("%s%s%s", $URL_PREFIX, $_->{"tim"}, $_->{"ext"}) # file_url |
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] |
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} (@a0, @a2); |
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}->(); |
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# Print a list of wget commands from our tuples |
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for my $i1 (@a1){ |
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printf("wget -N %s -O '%s%s'\n", scalar $i1->[1], $OUT_DIR, scalar $i1->[0]); |
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} |