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-rw-r--r--IkiWiki/CGI.pm8
-rw-r--r--IkiWiki/Rcs/svn.pm112
-rw-r--r--debian/changelog4
-rw-r--r--debian/control2
-rw-r--r--doc/bugs/utf8_svn_log.mdwn2
-rw-r--r--doc/install.mdwn3
-rw-r--r--doc/security.mdwn23
7 files changed, 84 insertions, 70 deletions
diff --git a/IkiWiki/CGI.pm b/IkiWiki/CGI.pm
index 30af53586..f589ca41d 100644
--- a/IkiWiki/CGI.pm
+++ b/IkiWiki/CGI.pm
@@ -33,6 +33,11 @@ sub cgi_recentchanges ($) { #{{{
unlockwiki();
+ # Force reading the template as utf-8, necessary if
+ # rcs_recentchanges returns true utf-8 strings.
+ open(TMPL, "<:utf8", "$config{templatedir}/recentchanges.tmpl");
+ my $template=HTML::Template->new(filehandle => *TMPL);
+ close(TMPL);
my $template=HTML::Template->new(
filename => "$config{templatedir}/recentchanges.tmpl"
);
@@ -44,8 +49,7 @@ sub cgi_recentchanges ($) { #{{{
styleurl => styleurl(),
baseurl => "$config{url}/",
);
- require Encode;
- print $q->header(-charset=>'utf-8'), Encode::decode_utf8($template->output);
+ print $q->header(-charset=>'utf-8'), $template->output;
} #}}}
sub cgi_signin ($$) { #{{{
diff --git a/IkiWiki/Rcs/svn.pm b/IkiWiki/Rcs/svn.pm
index 61c6409a7..5474e3be2 100644
--- a/IkiWiki/Rcs/svn.pm
+++ b/IkiWiki/Rcs/svn.pm
@@ -7,7 +7,6 @@ use IkiWiki;
package IkiWiki;
-my $svn_log_infoline=qr/^r(\d+)\s+\|\s+([^\s]+)\s+\|\s+(\d+-\d+-\d+\s+\d+:\d+:\d+\s+[-+]?\d+).*/;
my $svn_webcommit=qr/^web commit by (\w+):?(.*)/;
sub svn_info ($$) { #{{{
@@ -99,67 +98,64 @@ sub rcs_recentchanges ($) { #{{{
my $num=shift;
my @ret;
+ return unless -d "$config{srcdir}/.svn";
+
eval q{use CGI 'escapeHTML'};
eval q{use Date::Parse};
eval q{use Time::Duration};
+ eval q{use XML::Simple};
- if (-d "$config{srcdir}/.svn") {
- my $svn_url=svn_info("URL", $config{srcdir});
+ my $svn_url=svn_info("URL", $config{srcdir});
+ my $xml = XMLin(scalar `svn --xml -v log '$svn_url'`,
+ ForceArray => [ 'logentry', 'path' ],
+ GroupTags => { paths => 'path' },
+ KeyAttr => { path => 'content' },
+ );
+ foreach my $logentry (@{$xml->{logentry}}) {
+ my (@pages, @message);
+
+ my $rev = $logentry->{revision};
+ my $user = $logentry->{author};
+
+ my $date = $logentry->{date};
+ $date =~ s/T/ /;
+ $date =~ s/\.\d+Z$//;
+ my $when=concise(ago(time - str2time($date, 'UTC')));
+
+ foreach my $msgline (split(/\n/, $logentry->{msg})) {
+ push @message, { line => escapeHTML($msgline) };
+ }
- my $div=qr/^--------------------+$/;
- my $state='start';
- my ($rev, $user, $when, @pages, @message);
- foreach (`LANG=C svn log -v '$svn_url'`) {
- chomp;
- if ($state eq 'start' && /$div/) {
- $state='header';
- }
- elsif ($state eq 'header' && /$svn_log_infoline/) {
- $rev=$1;
- $user=$2;
- $when=concise(ago(time - str2time($3)));
- }
- elsif ($state eq 'header' && /^\s+[A-Z]+\s+\/\Q$config{svnpath}\E\/([^ ]+)(?:$|\s)/) {
- my $file=$1;
- my $diffurl=$config{diffurl};
- $diffurl=~s/\[\[file\]\]/$file/g;
- $diffurl=~s/\[\[r1\]\]/$rev - 1/eg;
- $diffurl=~s/\[\[r2\]\]/$rev/g;
- push @pages, {
- link => htmllink("", "", pagename($file), 1),
- diffurl => $diffurl,
- } if length $file;
- }
- elsif ($state eq 'header' && /^$/) {
- $state='body';
- }
- elsif ($state eq 'body' && /$div/) {
- my $committype="web";
- if (defined $message[0] &&
- $message[0]->{line}=~/$svn_webcommit/) {
- $user="$1";
- $message[0]->{line}=$2;
- }
- else {
- $committype="svn";
- }
-
- push @ret, { rev => $rev,
- user => htmllink("", "", $user, 1),
- committype => $committype,
- when => $when, message => [@message],
- pages => [@pages],
- } if @pages;
- return @ret if @ret >= $num;
-
- $state='header';
- $rev=$user=$when=undef;
- @pages=@message=();
- }
- elsif ($state eq 'body') {
- push @message, {line => escapeHTML($_)},
- }
+ my $committype="web";
+ if (defined $message[0] &&
+ $message[0]->{line}=~/$svn_webcommit/) {
+ $user="$1";
+ $message[0]->{line}=$2;
+ }
+ else {
+ $committype="svn";
}
+
+ foreach (keys %{$logentry->{paths}}) {
+ next unless /^\/\Q$config{svnpath}\E\/([^ ]+)(?:$|\s)/;
+ my $file=$1;
+ my $diffurl=$config{diffurl};
+ $diffurl=~s/\[\[file\]\]/$file/g;
+ $diffurl=~s/\[\[r1\]\]/$rev - 1/eg;
+ $diffurl=~s/\[\[r2\]\]/$rev/g;
+ push @pages, {
+ link => htmllink("", "", pagename($file), 1),
+ diffurl => $diffurl,
+ } if length $file;
+ }
+ push @ret, { rev => $rev,
+ user => htmllink("", "", $user, 1),
+ committype => $committype,
+ when => $when,
+ message => [@message],
+ pages => [@pages],
+ } if @pages;
+ return @ret if @ret >= $num;
}
return @ret;
@@ -230,6 +226,8 @@ sub rcs_notify () { #{{{
sub rcs_getctime ($) { #{{{
my $file=shift;
eval q{use Date::Parse};
+
+ my $svn_log_infoline=qr/^r\d+\s+\|\s+[^\s]+\s+\|\s+(\d+-\d+-\d+\s+\d+:\d+:\d+\s+[-+]?\d+).*/;
my $child = open(SVNLOG, "-|");
if (! $child) {
@@ -239,7 +237,7 @@ sub rcs_getctime ($) { #{{{
my $date;
while (<SVNLOG>) {
if (/$svn_log_infoline/) {
- $date=$3;
+ $date=$1;
}
}
close SVNLOG || warn "svn log $file exited $?";
diff --git a/debian/changelog b/debian/changelog
index 50f9c1e60..0b0a61fd0 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -6,8 +6,10 @@ ikiwiki (1.8) UNRELEASED; urgency=low
about changes to rss feeds.
* Honor LC_CTIME when formatting a time for display. Thanks, Faidon
Liambotis.
+ * Parse svn log as xml for improved utf8 and security. Note that this makes
+ ikiwiki depend on XML::Simple. Patch by Faidon Liambotis.
- -- Joey Hess <joeyh@debian.org> Sat, 1 Jul 2006 20:28:26 -0400
+ -- Joey Hess <joeyh@debian.org> Sat, 1 Jul 2006 20:41:55 -0400
ikiwiki (1.7) unstable; urgency=low
diff --git a/debian/control b/debian/control
index 364c80aed..168c57e3d 100644
--- a/debian/control
+++ b/debian/control
@@ -8,7 +8,7 @@ Standards-Version: 3.7.2
Package: ikiwiki
Architecture: all
-Depends: ${perl:Depends}, markdown, libtimedate-perl, libhtml-template-perl, libhtml-scrubber-perl, libcgi-formbuilder-perl (>= 3.02.02), libtime-duration-perl, libcgi-session-perl, libmail-sendmail-perl, gcc | c-compiler, libc6-dev | libc-dev
+Depends: ${perl:Depends}, libxml-simple-perl, markdown, libtimedate-perl, libhtml-template-perl, libhtml-scrubber-perl, libcgi-formbuilder-perl (>= 3.02.02), libtime-duration-perl, libcgi-session-perl, libmail-sendmail-perl, gcc | c-compiler, libc6-dev | libc-dev
Recommends: subversion | git-core, hyperestraier
Suggests: viewcvs, librpc-xml-perl
Description: a wiki compiler
diff --git a/doc/bugs/utf8_svn_log.mdwn b/doc/bugs/utf8_svn_log.mdwn
index 7266ab926..abd957719 100644
--- a/doc/bugs/utf8_svn_log.mdwn
+++ b/doc/bugs/utf8_svn_log.mdwn
@@ -7,3 +7,5 @@ have that locale.
Seems that the right fix for this is to use svn log --xml, which is
always utf-8 and come up with a parser for that. Also fixes the spoofing
issue in [[security]].
+
+[[bugs/done]]
diff --git a/doc/install.mdwn b/doc/install.mdwn
index 0aa55fb0b..f65e1a227 100644
--- a/doc/install.mdwn
+++ b/doc/install.mdwn
@@ -3,7 +3,8 @@ The easiest way to install ikiwiki is using the Debian package.
Ikiwiki requires [[MarkDown]] be installed, and also uses the following
perl modules if available: `CGI::Session` `CGI::FormBuilder` (version
3.02.02 or newer) `HTML::Template` `Mail::SendMail` `Time::Duration`
-`Date::Parse` (libtimedate-perl), `HTML::Scrubber`, `RPC::XML`
+`Date::Parse` (libtimedate-perl), `HTML::Scrubber`, `RPC::XML`,
+`XML::Simple`
If you want to install from the tarball, you should make sure that the required perl modules are installed, then run:
diff --git a/doc/security.mdwn b/doc/security.mdwn
index 53000c08e..b294decc8 100644
--- a/doc/security.mdwn
+++ b/doc/security.mdwn
@@ -12,17 +12,16 @@ to be kept in mind.
_(The list of things to fix.)_
-## svn commit logs
+## commit spoofing
-Anyone with svn commit access can forge "web commit from foo" and make it
-appear on [[RecentChanges]] like foo committed. One way to avoid this would
-be to limit web commits to those done by a certian user.
+Anyone with direct commit access can forge "web commit from foo" and
+make it appear on [[RecentChanges]] like foo committed. One way to avoid
+this would be to limit web commits to those done by a certian user.
-It's actually possible to force a whole series of svn commits to appear to
-have come just before yours, by forging svn log output. This could be
-guarded against by using svn log --xml.
+## other stuff to look at
-ikiwiki escapes any html in svn commit logs to prevent other mischief.
+I need to audit the git backend a bit, and have been meaning to
+see if any CRLF injection type things can be done.
----
@@ -227,3 +226,11 @@ only render a file with that extension.
ikiwiki supports protecting users from their own broken browsers via the
[[plugins/htmlscrubber]] plugin, which is enabled by default.
+
+## svn commit logs
+
+It's was possible to force a whole series of svn commits to appear to
+have come just before yours, by forging svn log output. This was
+guarded against by using svn log --xml.
+
+ikiwiki escapes any html in svn commit logs to prevent other mischief.
generated by cgit v1.2.3 (git 2.45.0) at 2024-11-24 21:19:31 +0000