X-Git-Url: http://git.vanrenterghem.biz/git.ikiwiki.info.git/blobdiff_plain/c487b847e2053b13c4eea0ccfeecf5a41c396412..4708aeceb3ec518a00069ad7a112ab0a5596275c:/IkiWiki/CGI.pm diff --git a/IkiWiki/CGI.pm b/IkiWiki/CGI.pm index a6695b3a5..cf72bfdb9 100644 --- a/IkiWiki/CGI.pm +++ b/IkiWiki/CGI.pm @@ -1,5 +1,7 @@ #!/usr/bin/perl +package IkiWiki; + use warnings; use strict; use IkiWiki; @@ -7,8 +9,6 @@ use IkiWiki::UserInfo; use open qw{:utf8 :std}; use Encode; -package IkiWiki; - sub printheader ($) { #{{{ my $session=shift; @@ -18,10 +18,9 @@ sub printheader ($) { #{{{ } else { print $session->header(-charset => 'utf-8'); } - } #}}} -sub showform ($$$$) { #{{{ +sub showform ($$$$;@) { #{{{ my $form=shift; my $buttons=shift; my $session=shift; @@ -35,7 +34,7 @@ sub showform ($$$$) { #{{{ } printheader($session); - print misctemplate($form->title, $form->render(submit => $buttons)); + print misctemplate($form->title, $form->render(submit => $buttons), @_); } sub redirect ($$) { #{{{ @@ -57,7 +56,6 @@ sub check_canedit ($$$;$) { #{{{ my $nonfatal=shift; my $canedit; - my $callback; run_hooks(canedit => sub { return if defined $canedit; my $ret=shift->($page, $q, $session); @@ -66,12 +64,12 @@ sub check_canedit ($$$;$) { #{{{ $canedit=1; } elsif (ref $ret eq 'CODE') { + $ret->() unless $nonfatal; $canedit=0; - $callback->() unless $nonfatal; } elsif (defined $ret) { - $canedit=0; error($ret) unless $nonfatal; + $canedit=0; } } }); @@ -79,57 +77,25 @@ sub check_canedit ($$$;$) { #{{{ } #}}} sub decode_cgi_utf8 ($) { #{{{ - my $cgi = shift; - foreach my $f ($cgi->param) { - $cgi->param($f, map { decode_utf8 $_ } $cgi->param($f)); + # decode_form_utf8 method is needed for 5.10 + if ($] < 5.01) { + my $cgi = shift; + foreach my $f ($cgi->param) { + $cgi->param($f, map { decode_utf8 $_ } $cgi->param($f)); + } } } #}}} -sub cgi_recentchanges ($) { #{{{ - my $q=shift; - - # Optimisation: building recentchanges means calculating lots of - # links. Memoizing htmllink speeds it up a lot (can't be memoized - # during page builds as the return values may change, but they - # won't here.) - eval q{use Memoize}; - error($@) if $@; - memoize("htmllink"); - - eval q{use Time::Duration}; - error($@) if $@; - - my $changelog=[rcs_recentchanges(100)]; - foreach my $change (@$changelog) { - $change->{when} = concise(ago($change->{when})); - - $change->{user} = userlink($change->{user}); - - my $is_excess = exists $change->{pages}[10]; # limit pages to first 10 - delete @{$change->{pages}}[10 .. @{$change->{pages}}] if $is_excess; - $change->{pages} = [ - map { - $_->{link} = htmllink("", "", $_->{page}, - noimageinline => 1, - linktext => pagetitle($_->{page})); - $_; - } @{$change->{pages}} - ]; - push @{$change->{pages}}, { link => '...' } if $is_excess; - } - - my $template=template("recentchanges.tmpl"); - $template->param( - title => "RecentChanges", - indexlink => indexlink(), - wikiname => $config{wikiname}, - changelog => $changelog, - baseurl => baseurl(), - ); - run_hooks(pagetemplate => sub { - shift->(page => "", destpage => "", template => $template); - }); - print $q->header(-charset => 'utf-8'), $template->output; +sub decode_form_utf8 ($) { #{{{ + if ($] >= 5.01) { + my $form = shift; + foreach my $f ($form->field) { + $form->field(name => $f, + value => decode_utf8($form->field($f)), + force => 1, + ); + } + } } #}}} # Check if the user is signed in. If not, redirect to the signin form and @@ -175,10 +141,12 @@ sub cgi_signin ($$) { #{{{ $form->field(name => "do", type => "hidden", value => "signin", force => 1); + decode_form_utf8($form); run_hooks(formbuilder_setup => sub { shift->(form => $form, cgi => $q, session => $session, buttons => $buttons); }); + decode_form_utf8($form); if ($form->submitted) { $form->validate; @@ -209,8 +177,18 @@ sub cgi_prefs ($$) { #{{{ my $session=shift; needsignin($q, $session); - decode_cgi_utf8($q); + + # The session id is stored on the form and checked to + # guard against CSRF. + my $sid=$q->param('sid'); + if (! defined $sid) { + $q->delete_all; + } + elsif ($sid ne $session->id) { + error(gettext("Your login session has expired.")); + } + eval q{use CGI::FormBuilder}; error($@) if $@; my $form = CGI::FormBuilder->new( @@ -235,33 +213,40 @@ sub cgi_prefs ($$) { #{{{ ], ); my $buttons=["Save Preferences", "Logout", "Cancel"]; - + + decode_form_utf8($form); run_hooks(formbuilder_setup => sub { shift->(form => $form, cgi => $q, session => $session, buttons => $buttons); }); + decode_form_utf8($form); - $form->field(name => "do", type => "hidden"); + $form->field(name => "do", type => "hidden", value => "prefs", + force => 1); + $form->field(name => "sid", type => "hidden", value => $session->id, + force => 1); $form->field(name => "email", size => 50, fieldset => "preferences"); - $form->field(name => "subscriptions", size => 50, - fieldset => "preferences", - comment => "(".htmllink("", "", "ikiwiki/PageSpec", noimageinline => 1).")"); - $form->field(name => "banned_users", size => 50, - fieldset => "admin"); my $user_name=$session->param("name"); + + # XXX deprecated, should be removed eventually + $form->field(name => "banned_users", size => 50, fieldset => "admin"); if (! is_admin($user_name)) { $form->field(name => "banned_users", type => "hidden"); } - if (! $form->submitted) { $form->field(name => "email", force => 1, value => userinfo_get($user_name, "email")); - $form->field(name => "subscriptions", force => 1, - value => userinfo_get($user_name, "subscriptions")); if (is_admin($user_name)) { - $form->field(name => "banned_users", force => 1, - value => join(" ", get_banned_users())); + my $value=join(" ", get_banned_users()); + if (length $value) { + $form->field(name => "banned_users", force => 1, + value => join(" ", get_banned_users()), + comment => "deprecated; please move to banned_users in setup file"); + } + else { + $form->field(name => "banned_users", type => "hidden"); + } } } @@ -275,18 +260,22 @@ sub cgi_prefs ($$) { #{{{ return; } elsif ($form->submitted eq 'Save Preferences' && $form->validate) { - foreach my $field (qw(email subscriptions)) { - if (defined $form->field($field) && length $form->field($field)) { - userinfo_set($user_name, $field, $form->field($field)) || - error("failed to set $field"); - } + if (defined $form->field('email')) { + userinfo_set($user_name, 'email', $form->field('email')) || + error("failed to set email"); } + + # XXX deprecated, should be removed eventually if (is_admin($user_name)) { set_banned_users(grep { ! is_admin($_) } split(' ', $form->field("banned_users"))) || error("failed saving changes"); + if (! length $form->field("banned_users")) { + $form->field(name => "banned_users", type => "hidden"); + } } + $form->text(gettext("Preferences saved.")); } @@ -296,15 +285,14 @@ sub cgi_prefs ($$) { #{{{ sub cgi_editpage ($$) { #{{{ my $q=shift; my $session=shift; + + decode_cgi_utf8($q); my @fields=qw(do rcsinfo subpage from page type editcontent comments); my @buttons=("Save Page", "Preview", "Cancel"); - - decode_cgi_utf8($q); eval q{use CGI::FormBuilder}; error($@) if $@; my $form = CGI::FormBuilder->new( - title => "editpage", fields => \@fields, charset => "utf-8", method => 'POST', @@ -318,19 +306,23 @@ sub cgi_editpage ($$) { #{{{ wikiname => $config{wikiname}, ); + decode_form_utf8($form); run_hooks(formbuilder_setup => sub { shift->(form => $form, cgi => $q, session => $session, buttons => \@buttons); }); + decode_form_utf8($form); - # This untaint is safe because titlepage removes any problematic - # characters. - my ($page)=$form->field('page'); - $page=titlepage(possibly_foolish_untaint($page)); + # This untaint is safe because we check file_pruned. + my $page=$form->field('page'); + $page=possibly_foolish_untaint($page); + my $absolute=($page =~ s#^/+##); if (! defined $page || ! length $page || - file_pruned($page, $config{srcdir}) || $page=~/^\//) { + file_pruned($page, $config{srcdir})) { error("bad page name"); } + + my $baseurl=$config{url}."/".htmlpage($page); my $from; if (defined $form->field('from')) { @@ -342,7 +334,7 @@ sub cgi_editpage ($$) { #{{{ if (exists $pagesources{$page} && $form->field("do") ne "create") { $file=$pagesources{$page}; $type=pagetype($file); - if (! defined $type) { + if (! defined $type || $type=~/^_/) { error(sprintf(gettext("%s is not an editable page"), $page)); } if (! $form->submitted) { @@ -369,10 +361,12 @@ sub cgi_editpage ($$) { #{{{ } $form->field(name => "do", type => 'hidden'); + $form->field(name => "sid", type => "hidden", value => $session->id, + force => 1); $form->field(name => "from", type => 'hidden'); $form->field(name => "rcsinfo", type => 'hidden'); $form->field(name => "subpage", type => 'hidden'); - $form->field(name => "page", value => pagetitle($page, 1), force => 1); + $form->field(name => "page", value => $page, force => 1); $form->field(name => "type", value => $type, force => 1); $form->field(name => "comments", type => "text", size => 80); $form->field(name => "editcontent", type => "textarea", rows => 20, @@ -380,10 +374,9 @@ sub cgi_editpage ($$) { #{{{ $form->tmpl_param("can_commit", $config{rcs}); $form->tmpl_param("indexlink", indexlink()); $form->tmpl_param("helponformattinglink", - htmllink("", "", "ikiwiki/formatting", + htmllink($page, $page, "ikiwiki/formatting", noimageinline => 1, linktext => "FormattingHelp")); - $form->tmpl_param("baseurl", baseurl()); if ($form->submitted eq "Cancel") { if ($form->field("do") eq "create" && defined $from) { @@ -398,7 +391,14 @@ sub cgi_editpage ($$) { #{{{ return; } elsif ($form->submitted eq "Preview") { + my $new=not exists $pagesources{$page}; + if ($new) { + # temporarily record its type + $pagesources{$page}=$page.".".$type; + } + my $content=$form->field('editcontent'); + run_hooks(editcontent => sub { $content=shift->( content => $content, @@ -407,16 +407,27 @@ sub cgi_editpage ($$) { #{{{ session => $session, ); }); - $form->tmpl_param("page_preview", - htmlize($page, $type, - linkify($page, "", + my $preview=htmlize($page, $page, $type, + linkify($page, $page, preprocess($page, $page, - filter($page, $page, $content), 0, 1)))); + filter($page, $page, $content), 0, 1))); + run_hooks(format => sub { + $preview=shift->( + page => $page, + content => $preview, + ); + }); + $form->tmpl_param("page_preview", $preview); + + if ($new) { + delete $pagesources{$page}; + } + # previewing may have created files on disk + saveindex(); } elsif ($form->submitted eq "Save Page") { $form->tmpl_param("page_preview", ""); } - $form->tmpl_param("page_conflict", ""); if ($form->submitted ne "Save Page" || ! $form->validate) { if ($form->field("do") eq "create") { @@ -425,7 +436,8 @@ sub cgi_editpage ($$) { #{{{ if (! defined $from || ! length $from || $from ne $form->field('from') || file_pruned($from, $config{srcdir}) || - $from=~/^\// || + $from=~/^\// || + $absolute || $form->submitted eq "Preview") { @page_locs=$best_loc=$page; } @@ -447,9 +459,10 @@ sub cgi_editpage ($$) { #{{{ $dir=~s![^/]+/+$!!; push @page_locs, $dir.$page; } + + push @page_locs, "$config{userdir}/$page" + if length $config{userdir}; } - push @page_locs, "$config{userdir}/$page" - if length $config{userdir}; @page_locs = grep { ! exists $pagecase{lc $_} @@ -457,8 +470,16 @@ sub cgi_editpage ($$) { #{{{ if (! @page_locs) { # hmm, someone else made the page in the # meantime? - redirect($q, "$config{url}/".htmlpage($page)); - return; + if ($form->submitted eq "Preview") { + # let them go ahead with the edit + # and resolve the conflict at save + # time + @page_locs=$page; + } + else { + redirect($q, "$config{url}/".htmlpage($page)); + return; + } } my @editable_locs = grep { @@ -471,13 +492,14 @@ sub cgi_editpage ($$) { #{{{ my @page_types; if (exists $hooks{htmlize}) { - @page_types=keys %{$hooks{htmlize}}; + @page_types=grep { !/^_/ } + keys %{$hooks{htmlize}}; } $form->tmpl_param("page_select", 1); $form->field(name => "page", type => 'select', - options => [ map { pagetitle($_, 1) } @editable_locs ], - value => pagetitle($best_loc, 1)); + options => [ map { [ $_, pagetitle($_, 1) ] } @editable_locs ], + value => $best_loc); $form->field(name => "type", type => 'select', options => \@page_types); $form->title(sprintf(gettext("creating %s"), pagetitle($page))); @@ -501,28 +523,37 @@ sub cgi_editpage ($$) { #{{{ $form->title(sprintf(gettext("editing %s"), pagetitle($page))); } - showform($form, \@buttons, $session, $q); - saveindex(); + showform($form, \@buttons, $session, $q, forcebaseurl => $baseurl); } else { # save page check_canedit($page, $q, $session); + + # The session id is stored on the form and checked to + # guard against CSRF. But only if the user is logged in, + # as anonok can allow anonymous edits. + if (defined $session->param("name")) { + my $sid=$q->param('sid'); + if (! defined $sid || $sid ne $session->id) { + error(gettext("Your login session has expired.")); + } + } my $exists=-e "$config{srcdir}/$file"; if ($form->field("do") ne "create" && ! $exists && - ! eval { srcfile($file) }) { - $form->tmpl_param("page_gone", 1); + ! defined srcfile($file, 1)) { + $form->tmpl_param("message", template("editpagegone.tmpl")->output); $form->field(name => "do", value => "create", force => 1); $form->tmpl_param("page_select", 0); $form->field(name => "page", type => 'hidden'); $form->field(name => "type", type => 'hidden'); $form->title(sprintf(gettext("editing %s"), $page)); - showform($form, \@buttons, $session, $q); + showform($form, \@buttons, $session, $q, forcebaseurl => $baseurl); return; } elsif ($form->field("do") eq "create" && $exists) { - $form->tmpl_param("creation_conflict", 1); + $form->tmpl_param("message", template("editcreationconflict.tmpl")->output); $form->field(name => "do", value => "edit", force => 1); $form->tmpl_param("page_select", 0); $form->field(name => "page", type => 'hidden'); @@ -532,7 +563,7 @@ sub cgi_editpage ($$) { #{{{ value => readfile("$config{srcdir}/$file"). "\n\n\n".$form->field("editcontent"), force => 1); - showform($form, \@buttons, $session, $q); + showform($form, \@buttons, $session, $q, forcebaseurl => $baseurl); return; } @@ -555,14 +586,16 @@ sub cgi_editpage ($$) { #{{{ if ($@) { $form->field(name => "rcsinfo", value => rcs_prepedit($file), force => 1); - $form->tmpl_param("failed_save", 1); - $form->tmpl_param("error_message", $@); + my $mtemplate=template("editfailedsave.tmpl"); + $mtemplate->param(error_message => $@); + $form->tmpl_param("message", $mtemplate->output); $form->field("editcontent", value => $content, force => 1); $form->tmpl_param("page_select", 0); $form->field(name => "page", type => 'hidden'); $form->field(name => "type", type => 'hidden'); $form->title(sprintf(gettext("editing %s"), $page)); - showform($form, \@buttons, $session, $q); + showform($form, \@buttons, $session, $q, + forcebaseurl => $baseurl); return; } @@ -580,7 +613,7 @@ sub cgi_editpage ($$) { #{{{ # Prevent deadlock with post-commit hook by # signaling to it that it should not try to - # do anything (except send commit mails). + # do anything. disable_commit_hook(); $conflict=rcs_commit($file, $message, $form->field("rcsinfo"), @@ -593,24 +626,21 @@ sub cgi_editpage ($$) { #{{{ # may have been committed while the post-commit hook was # disabled. require IkiWiki::Render; - # Reload index, since the first time it's loaded is before - # the wiki is locked, and things may have changed in the - # meantime. - loadindex(); refresh(); saveindex(); if (defined $conflict) { $form->field(name => "rcsinfo", value => rcs_prepedit($file), force => 1); - $form->tmpl_param("page_conflict", 1); + $form->tmpl_param("message", template("editconflict.tmpl")->output); $form->field("editcontent", value => $conflict, force => 1); $form->field("do", "edit", force => 1); $form->tmpl_param("page_select", 0); $form->field(name => "page", type => 'hidden'); $form->field(name => "type", type => 'hidden'); $form->title(sprintf(gettext("editing %s"), $page)); - showform($form, \@buttons, $session, $q); + showform($form, \@buttons, $session, $q, + forcebaseurl => $baseurl); return; } else { @@ -620,16 +650,42 @@ sub cgi_editpage ($$) { #{{{ } } } #}}} + +sub check_banned ($$) { #{{{ + my $q=shift; + my $session=shift; + + my $name=$session->param("name"); + if (defined $name) { + # XXX banned in userinfo is deprecated, should be removed + # eventually, and only banned_users be checked. + if (userinfo_get($session->param("name"), "banned") || + grep { $name eq $_ } @{$config{banned_users}}) { + print $q->header(-status => "403 Forbidden"); + $session->delete(); + print gettext("You are banned."); + cgi_savesession($session); + exit; + } + } +} sub cgi_getsession ($) { #{{{ my $q=shift; eval q{use CGI::Session}; + error($@) if $@; CGI::Session->name("ikiwiki_session_".encode_utf8($config{wikiname})); my $oldmask=umask(077); - my $session = CGI::Session->new("driver:DB_File", $q, - { FileName => "$config{wikistatedir}/sessions.db" }); + my $session = eval { + CGI::Session->new("driver:DB_File", $q, + { FileName => "$config{wikistatedir}/sessions.db" }) + }; + if (! $session || $@) { + error($@." ".CGI::Session->errstr()); + } + umask($oldmask); return $session; @@ -648,11 +704,14 @@ sub cgi (;$$) { #{{{ my $q=shift; my $session=shift; + eval q{use CGI}; + error($@) if $@; + $CGI::DISABLE_UPLOADS=$config{cgi_disable_uploads}; + if (! $q) { - eval q{use CGI}; - error($@) if $@; - + binmode(STDIN); $q=CGI->new; + binmode(STDIN, ":utf8"); run_hooks(cgi => sub { shift->($q) }); } @@ -668,14 +727,9 @@ sub cgi (;$$) { #{{{ } } - # Things that do not need a session. - if ($do eq 'recentchanges') { - cgi_recentchanges($q); - return; - } - # Need to lock the wiki before getting a session. lockwiki(); + loadindex(); if (! $session) { $session=cgi_getsession($q); @@ -699,14 +753,8 @@ sub cgi (;$$) { #{{{ } } - if (defined $session->param("name") && - userinfo_get($session->param("name"), "banned")) { - print $q->header(-status => "403 Forbidden"); - $session->delete(); - print gettext("You are banned."); - cgi_savesession($session); - } - + check_banned($q, $session); + run_hooks(sessioncgi => sub { shift->($q, $session) }); if ($do eq 'signin') { @@ -719,7 +767,7 @@ sub cgi (;$$) { #{{{ elsif ($do eq 'create' || $do eq 'edit') { cgi_editpage($q, $session); } - elsif (defined $session->param("postsignin")) { + elsif (defined $session->param("postsignin") || $do eq 'postsignin') { cgi_postsignin($q, $session); } else { @@ -727,32 +775,14 @@ sub cgi (;$$) { #{{{ } } #}}} -sub userlink ($) { #{{{ - my $user=shift; +# Does not need tobe called directly; all errors will go through here. +sub cgierror ($) { #{{{ + my $message=shift; - eval q{use CGI 'escapeHTML'}; - error($@) if $@; - if ($user =~ m!^https?://! && - eval q{use Net::OpenID::VerifiedIdentity; 1} && !$@) { - # Munge user-urls, as used by eg, OpenID. - my $oid=Net::OpenID::VerifiedIdentity->new(identity => $user); - my $display=$oid->display; - # Convert "user.somehost.com" to "user [somehost.com]". - if ($display !~ /\[/) { - $display=~s/^(.*?)\.([^.]+\.[a-z]+)$/$1 [$2]/; - } - # Convert "http://somehost.com/user" to "user [somehost.com]". - if ($display !~ /\[/) { - $display=~s/^https?:\/\/(.+)\/([^\/]+)$/$2 [$1]/; - } - $display=~s!^https?://!!; # make sure this is removed - return "".escapeHTML($display).""; - } - else { - return htmllink("", "", escapeHTML( - length $config{userdir} ? $config{userdir}."/".$user : $user - ), noimageinline => 1); - } + print "Content-type: text/html\n\n"; + print misctemplate(gettext("Error"), + "

".gettext("Error").": $message

"); + die $@; } #}}} 1