--- /dev/null
+#!/usr/bin/perl
+package IkiWiki::Plugin::filecheck;
+
+use warnings;
+use strict;
+use IkiWiki 2.00;
+
+my %units=( #{{{ # size in bytes
+ B => 1,
+ byte => 1,
+ KB => 2 ** 10,
+ kilobyte => 2 ** 10,
+ K => 2 ** 10,
+ KB => 2 ** 10,
+ kilobyte => 2 ** 10,
+ M => 2 ** 20,
+ MB => 2 ** 20,
+ megabyte => 2 ** 20,
+ G => 2 ** 30,
+ GB => 2 ** 30,
+ gigabyte => 2 ** 30,
+ T => 2 ** 40,
+ TB => 2 ** 40,
+ terabyte => 2 ** 40,
+ P => 2 ** 50,
+ PB => 2 ** 50,
+ petabyte => 2 ** 50,
+ E => 2 ** 60,
+ EB => 2 ** 60,
+ exabyte => 2 ** 60,
+ Z => 2 ** 70,
+ ZB => 2 ** 70,
+ zettabyte => 2 ** 70,
+ Y => 2 ** 80,
+ YB => 2 ** 80,
+ yottabyte => 2 ** 80,
+ # ikiwiki, if you find you need larger data quantities, either modify
+ # yourself to add them, or travel back in time to 2008 and kill me.
+ # -- Joey
+); #}}}
+
+sub parsesize ($) { #{{{
+ my $size=shift;
+
+ no warnings;
+ my $base=$size+0; # force to number
+ use warnings;
+ foreach my $unit (sort keys %units) {
+ if ($size=~/[0-9\s]\Q$unit\E$/i) {
+ return $base * $units{$unit};
+ }
+ }
+ return $base;
+} #}}}
+
+sub humansize ($) { #{{{
+ my $size=shift;
+
+ foreach my $unit (reverse sort { $units{$a} <=> $units{$b} || $b cmp $a } keys %units) {
+ if ($size / $units{$unit} > 0.25) {
+ return (int($size / $units{$unit} * 10)/10).$unit;
+ }
+ }
+ return $size; # near zero, or negative
+} #}}}
+
+package IkiWiki::PageSpec;
+
+sub match_maxsize ($$;@) { #{{{
+ my $page=shift;
+ my $maxsize=eval{IkiWiki::Plugin::attachment::parsesize(shift)};
+ if ($@) {
+ return IkiWiki::FailReason->new("unable to parse maxsize (or number too large)");
+ }
+
+ my %params=@_;
+ my $file=exists $params{file} ? $params{file} : $IkiWiki::pagesources{$page};
+ if (! defined $file) {
+ return IkiWiki::FailReason->new("no file specified");
+ }
+
+ if (-s $file > $maxsize) {
+ return IkiWiki::FailReason->new("file too large (".(-s $file)." > $maxsize)");
+ }
+ else {
+ return IkiWiki::SuccessReason->new("file not too large");
+ }
+} #}}}
+
+sub match_minsize ($$;@) { #{{{
+ my $page=shift;
+ my $minsize=eval{IkiWiki::Plugin::attachment::parsesize(shift)};
+ if ($@) {
+ return IkiWiki::FailReason->new("unable to parse minsize (or number too large)");
+ }
+
+ my %params=@_;
+ my $file=exists $params{file} ? $params{file} : $IkiWiki::pagesources{$page};
+ if (! defined $file) {
+ return IkiWiki::FailReason->new("no file specified");
+ }
+
+ if (-s $file < $minsize) {
+ return IkiWiki::FailReason->new("file too small");
+ }
+ else {
+ return IkiWiki::SuccessReason->new("file not too small");
+ }
+} #}}}
+
+sub match_mimetype ($$;@) { #{{{
+ my $page=shift;
+ my $wanted=shift;
+
+ my %params=@_;
+ my $file=exists $params{file} ? $params{file} : $IkiWiki::pagesources{$page};
+ if (! defined $file) {
+ return IkiWiki::FailReason->new("no file specified");
+ }
+
+ # Use ::magic to get the mime type, the idea is to only trust
+ # data obtained by examining the actual file contents.
+ eval q{use File::MimeInfo::Magic};
+ if ($@) {
+ return IkiWiki::FailReason->new("failed to load File::MimeInfo::Magic ($@); cannot check MIME type");
+ }
+ my $mimetype=File::MimeInfo::Magic::magic($file);
+ if (! defined $mimetype) {
+ $mimetype="unknown";
+ }
+
+ my $regexp=IkiWiki::glob2re($wanted);
+ if ($mimetype!~/^$regexp$/i) {
+ return IkiWiki::FailReason->new("file MIME type is $mimetype, not $wanted");
+ }
+ else {
+ return IkiWiki::SuccessReason->new("file MIME type is $mimetype");
+ }
+} #}}}
+
+sub match_virusfree ($$;@) { #{{{
+ my $page=shift;
+ my $wanted=shift;
+
+ my %params=@_;
+ my $file=exists $params{file} ? $params{file} : $IkiWiki::pagesources{$page};
+ if (! defined $file) {
+ return IkiWiki::FailReason->new("no file specified");
+ }
+
+ if (! exists $IkiWiki::config{virus_checker} ||
+ ! length $IkiWiki::config{virus_checker}) {
+ return IkiWiki::FailReason->new("no virus_checker configured");
+ }
+
+ # The file needs to be fed into the virus checker on stdin,
+ # because the file is not world-readable, and if clamdscan is
+ # used, clamd would fail to read it.
+ eval q{use IPC::Open2};
+ error($@) if $@;
+ open (IN, "<", $file) || return IkiWiki::FailReason->new("failed to read file");
+ binmode(IN);
+ my $sigpipe=0;
+ $SIG{PIPE} = sub { $sigpipe=1 };
+ my $pid=open2(\*CHECKER_OUT, "<&IN", $IkiWiki::config{virus_checker});
+ my $reason=<CHECKER_OUT>;
+ chomp $reason;
+ 1 while (<CHECKER_OUT>);
+ close(CHECKER_OUT);
+ waitpid $pid, 0;
+ $SIG{PIPE}="DEFAULT";
+ if ($sigpipe || $?) {
+ if (! length $reason) {
+ $reason="virus checker $IkiWiki::config{virus_checker}; failed with no output";
+ }
+ return IkiWiki::FailReason->new("file seems to contain a virus ($reason)");
+ }
+ else {
+ return IkiWiki::SuccessReason->new("file seems virusfree ($reason)");
+ }
+} #}}}
+
+sub match_ispage ($$;@) { #{{{
+ my $filename=shift;
+
+ if (defined IkiWiki::pagetype($filename)) {
+ return IkiWiki::SuccessReason->new("file is a wiki page");
+ }
+ else {
+ return IkiWiki::FailReason->new("file is not a wiki page");
+ }
+} #}}}
sipb-www / ikiwiki.git / blobdiff