X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/96da041907bcd4e74be6b2beef06d265708644ee..52bbdbb1a5ce994c9afac253c1d9bfd94acf4d1d:/IkiWiki/Plugin/attachment.pm diff --git a/IkiWiki/Plugin/attachment.pm b/IkiWiki/Plugin/attachment.pm index 15c9a8c48..3fe33c858 100644 --- a/IkiWiki/Plugin/attachment.pm +++ b/IkiWiki/Plugin/attachment.pm @@ -6,59 +6,90 @@ use strict; use IkiWiki 2.00; sub import { #{{{ + hook(type => "getsetup", id => "attachment", call => \&getsetup); hook(type => "checkconfig", id => "attachment", call => \&checkconfig); hook(type => "formbuilder_setup", id => "attachment", call => \&formbuilder_setup); hook(type => "formbuilder", id => "attachment", call => \&formbuilder); } # }}} -sub checkconfig () { #{{{ - $config{cgi_disable_uploads}=0; +sub getsetup () { #{{{ + return + => { + type => "string", + default => "", + example => "clamdscan -", + description => "virus checker program (reads STDIN, returns nonzero if virus found)", + safe => 0, # executed + rebuild => 0, + }, } #}}} -sub attachment_location ($) { - my $page=shift; - - # Put the attachment in a subdir of the page it's attached - # to, unless that page is an "index" page. - $page=~s/(^|\/)index//; - $page.="/" if length $page; - - return $page; -} +sub check_canattach ($$;$) { #{{{ + my $session=shift; + my $dest=shift; # where it's going to be put, under the srcdir + my $file=shift; # the path to the attachment currently -sub attachment_list ($) { - my $page=shift; - my $loc=attachment_location($page); + # Don't allow an attachment to be uploaded with the same name as an + # existing page. + if (exists $pagesources{$dest} && $pagesources{$dest} ne $dest) { + error(sprintf(gettext("there is already a page named %s"), $dest)); + } - my @ret; - foreach my $f (values %pagesources) { - if (! defined IkiWiki::pagetype($f) && - $f=~m/^\Q$loc\E[^\/]+$/ && - -e "$config{srcdir}/$f") { - push @ret, { - "field-select" => '', - link => htmllink($page, $page, $f, noimageinline => 1), - size => humansize((stat(_))[7]), - mtime => displaytime($IkiWiki::pagemtime{$f}), - }; + # Use a special pagespec to test that the attachment is valid. + my $allowed=1; + foreach my $admin (@{$config{adminuser}}) { + my $allowed_attachments=IkiWiki::userinfo_get($admin, "allowed_attachments"); + if (defined $allowed_attachments && + length $allowed_attachments) { + $allowed=pagespec_match($dest, + $allowed_attachments, + file => $file, + user => $session->param("name"), + ip => $ENV{REMOTE_ADDR}, + ); + last if $allowed; } } + if (! $allowed) { + error(gettext("prohibited by allowed_attachments")." ($allowed)"); + } + else { + return 1; + } +} #}}} - return @ret; -} +sub checkconfig () { #{{{ + $config{cgi_disable_uploads}=0; +} #}}} sub formbuilder_setup (@) { #{{{ my %params=@_; my $form=$params{form}; + my $q=$params{cgi}; - if ($form->field("do") eq "edit") { + if (defined $form->field("do") && $form->field("do") eq "edit") { + # Add attachment field, set type to multipart. + $form->enctype(&CGI::MULTIPART); $form->field(name => 'attachment', type => 'file'); - $form->tmpl_param("attachment_list" => [attachment_list($form->field('page'))]); - # These buttons are not put in the usual place, so - # is not added to the normal formbuilder button list. + # are not added to the normal formbuilder button list. $form->tmpl_param("field-upload" => ''); $form->tmpl_param("field-link" => ''); + + # Add the javascript from the toggle plugin; + # the attachments interface uses it to toggle visibility. + require IkiWiki::Plugin::toggle; + $form->tmpl_param("javascript" => $IkiWiki::Plugin::toggle::javascript); + # Start with the attachments interface toggled invisible, + # but if it was used, keep it open. + if ($form->submitted ne "Upload Attachment" && + (! defined $q->param("attachment_select") || + ! length $q->param("attachment_select"))) { + $form->tmpl_param("attachments-class" => "toggleable"); + } + else { + $form->tmpl_param("attachments-class" => "toggleable-open"); + } } elsif ($form->title eq "preferences") { my $session=$params{session}; @@ -66,7 +97,13 @@ sub formbuilder_setup (@) { #{{{ $form->field(name => "allowed_attachments", size => 50, fieldset => "admin", - comment => "(".htmllink("", "", "ikiwiki/PageSpec", noimageinline => 1).")"); + comment => "(". + htmllink("", "", + "ikiwiki/PageSpec/attachment", + noimageinline => 1, + linktext => "Enhanced PageSpec", + ).")" + ); if (! IkiWiki::is_admin($user_name)) { $form->field(name => "allowed_attachments", type => "hidden"); } @@ -89,22 +126,30 @@ sub formbuilder (@) { #{{{ my $form=$params{form}; my $q=$params{cgi}; - return if $form->field("do") ne "edit"; + return if ! defined $form->field("do") || $form->field("do") ne "edit"; - if ($form->submitted eq "Upload" || $form->submitted eq "Save Page") { + my $filename=$q->param('attachment'); + if (defined $filename && length $filename && + ($form->submitted eq "Upload Attachment" || $form->submitted eq "Save Page")) { my $session=$params{session}; - - my $filename=$q->param('attachment'); - if (! defined $filename || ! length $filename) { - # no file, so do nothing - return; - } # This is an (apparently undocumented) way to get the name # of the temp file that CGI writes the upload to. my $tempfile=$q->tmpFileName($filename); - - $filename=IkiWiki::titlepage( + if (! defined $tempfile || ! length $tempfile) { + # perl 5.8 needs an alternative, awful method + if ($q =~ /HASH/ && exists $q->{'.tmpfiles'}) { + foreach my $key (keys(%{$q->{'.tmpfiles'}})) { + $tempfile=$q->tmpFileName(\$key); + last if defined $tempfile && length $tempfile; + } + } + if (! defined $tempfile || ! length $tempfile) { + error("CGI::tmpFileName failed to return the uploaded file name"); + } + } + + $filename=IkiWiki::linkpage( IkiWiki::possibly_foolish_untaint( attachment_location($form->field('page')). IkiWiki::basename($filename))); @@ -115,22 +160,8 @@ sub formbuilder (@) { #{{{ # Check that the user is allowed to edit a page with the # name of the attachment. IkiWiki::check_canedit($filename, $q, $session, 1); - - # Use a special pagespec to test that the attachment is valid. - my $allowed=1; - foreach my $admin (@{$config{adminuser}}) { - my $allowed_attachments=IkiWiki::userinfo_get($admin, "allowed_attachments"); - if (defined $allowed_attachments && - length $allowed_attachments) { - $allowed=pagespec_match($filename, - $allowed_attachments, - file => $tempfile); - last if $allowed; - } - } - if (! $allowed) { - error(gettext("attachment rejected")." ($allowed)"); - } + # And that the attachment itself is acceptable. + check_canattach($session, $filename, $tempfile); # Needed for fast_file_copy and for rendering below. require IkiWiki::Render; @@ -139,10 +170,21 @@ sub formbuilder (@) { #{{{ # Try to use a fast rename; fall back to copying. IkiWiki::prep_writefile($filename, $config{srcdir}); unlink($config{srcdir}."/".$filename); - if (! rename($tempfile, $config{srcdir}."/".$filename)) { + if (rename($tempfile, $config{srcdir}."/".$filename)) { + # The temp file has tight permissions; loosen up. + chmod(0666 & ~umask, $config{srcdir}."/".$filename); + } + else { my $fh=$q->upload('attachment'); if (! defined $fh || ! ref $fh) { - error("failed to get filehandle"); + # needed by old CGI versions + $fh=$q->param('attachment'); + if (! defined $fh || ! ref $fh) { + # even that doesn't always work, + # fall back to opening the tempfile + $fh=undef; + open($fh, "<", $tempfile) || error("failed to open \"$tempfile\": $!"); + } } binmode($fh); writefile($filename, $config{srcdir}, undef, 1, sub { @@ -164,17 +206,58 @@ sub formbuilder (@) { #{{{ IkiWiki::saveindex(); } elsif ($form->submitted eq "Insert Links") { + my $page=quotemeta($q->param("page")); my $add=""; foreach my $f ($q->param("attachment_select")) { + $f=~s/^$page\///; $add.="[[$f]]\n"; } $form->field(name => 'editcontent', value => $form->field('editcontent')."\n\n".$add, - force => 1); + force => 1) if length $add; } + + # Generate the attachment list only after having added any new + # attachments. + $form->tmpl_param("attachment_list" => [attachment_list($form->field('page'))]); } # }}} -my %units=( # size in bytes +sub attachment_location ($) { #{{{ + my $page=shift; + + # Put the attachment in a subdir of the page it's attached + # to, unless that page is an "index" page. + $page=~s/(^|\/)index//; + $page.="/" if length $page; + + return $page; +} #}}} + +sub attachment_list ($) { #{{{ + my $page=shift; + my $loc=attachment_location($page); + + my @ret; + foreach my $f (values %pagesources) { + if (! defined IkiWiki::pagetype($f) && + $f=~m/^\Q$loc\E[^\/]+$/ && + -e "$config{srcdir}/$f") { + push @ret, { + "field-select" => '', + link => htmllink($page, $page, $f, noimageinline => 1), + size => humansize((stat(_))[7]), + mtime => displaytime($IkiWiki::pagemtime{$f}), + mtime_raw => $IkiWiki::pagemtime{$f}, + }; + } + } + + # Sort newer attachments to the top of the list, so a newly-added + # attachment appears just before the form used to add it. + return sort { $b->{mtime_raw} <=> $a->{mtime_raw} || $a->{link} cmp $b->{link} } @ret; +} #}}} + +my %units=( #{{{ # size in bytes B => 1, byte => 1, KB => 2 ** 10, @@ -206,7 +289,7 @@ my %units=( # size in bytes # 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; @@ -215,7 +298,7 @@ sub parsesize ($) { #{{{ my $base=$size+0; # force to number use warnings; foreach my $unit (sort keys %units) { - if ($size=~/\Q$unit\E/i) { + if ($size=~/[0-9\s]\Q$unit\E$/i) { return $base * $units{$unit}; } } @@ -227,7 +310,7 @@ sub humansize ($) { #{{{ 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 (int($size / $units{$unit} * 10)/10).$unit; } } return $size; # near zero, or negative @@ -248,7 +331,7 @@ sub match_maxsize ($$;@) { #{{{ } if (-s $params{file} > $maxsize) { - return IkiWiki::FailReason->new("file too large"); + return IkiWiki::FailReason->new("file too large (".(-s $params{file})." > $maxsize)"); } else { return IkiWiki::SuccessReason->new("file not too large"); @@ -275,6 +358,76 @@ sub match_minsize ($$;@) { #{{{ } } #}}} +sub match_mimetype ($$;@) { #{{{ + shift; + my $wanted=shift; + + my %params=@_; + if (! exists $params{file}) { + return IkiWiki::FailReason->new("no file specified"); + } + + # Use ::magic to get the mime type, the idea is to only trust + # data obtained by examining the actual file contents. + eval q{use File::MimeInfo::Magic}; + if ($@) { + return IkiWiki::FailReason->new("failed to load File::MimeInfo::Magic ($@); cannot check MIME type"); + } + my $mimetype=File::MimeInfo::Magic::magic($params{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 ($$;@) { #{{{ + shift; + my $wanted=shift; + + my %params=@_; + if (! exists $params{file}) { + return IkiWiki::FailReason->new("no file specified"); + } + + if (! exists $IkiWiki::config{virus_checker} || + ! length $IkiWiki::config{virus_checker}) { + return IkiWiki::FailReason->new("no virus_checker configured"); + } + + # The file needs to be fed into the virus checker on stdin, + # because the file is not world-readable, and if clamdscan is + # used, clamd would fail to read it. + eval q{use IPC::Open2}; + error($@) if $@; + open (IN, "<", $params{file}) || return IkiWiki::FailReason->new("failed to read file"); + binmode(IN); + my $sigpipe=0; + $SIG{PIPE} = sub { $sigpipe=1 }; + my $pid=open2(\*CHECKER_OUT, "<&IN", $IkiWiki::config{virus_checker}); + my $reason=; + chomp $reason; + 1 while (); + close(CHECKER_OUT); + waitpid $pid, 0; + $SIG{PIPE}="DEFAULT"; + if ($sigpipe || $?) { + if (! length $reason) { + $reason="virus checker $IkiWiki::config{virus_checker}; failed with no output"; + } + return IkiWiki::FailReason->new("file seems to contain a virus ($reason)"); + } + else { + return IkiWiki::SuccessReason->new("file seems virusfree ($reason)"); + } +} #}}} + sub match_ispage ($$;@) { #{{{ my $filename=shift; @@ -286,4 +439,41 @@ sub match_ispage ($$;@) { #{{{ } } #}}} +sub match_user ($$;@) { #{{{ + shift; + my $user=shift; + my %params=@_; + + if (! exists $params{user}) { + return IkiWiki::FailReason->new("no user specified"); + } + + if (defined $params{user} && lc $params{user} eq lc $user) { + return IkiWiki::SuccessReason->new("user is $user"); + } + elsif (! defined $params{user}) { + return IkiWiki::FailReason->new("not logged in"); + } + else { + return IkiWiki::FailReason->new("user is $params{user}, not $user"); + } +} #}}} + +sub match_ip ($$;@) { #{{{ + shift; + my $ip=shift; + my %params=@_; + + if (! exists $params{ip}) { + return IkiWiki::FailReason->new("no IP specified"); + } + + if (defined $params{ip} && lc $params{ip} eq lc $ip) { + return IkiWiki::SuccessReason->new("IP is $ip"); + } + else { + return IkiWiki::FailReason->new("IP is $params{ip}, not $ip"); + } +} #}}} + 1