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* Re: [PATCH] searchview: avoid displaying full paths on errors
  2019-06-25  7:33 14%       ` Ali Alnubani
@ 2019-06-26  6:35 14%         ` Eric Wong
  0 siblings, 0 replies; 3+ results
From: Eric Wong @ 2019-06-26  6:35 UTC (permalink / raw)
  To: Ali Alnubani; +Cc: meta

Ali Alnubani <alialnu@mellanox.com> wrote:
> Thanks for the patch Eric.
> I apologize for taking so long to update mine.

No worries.  Pushed as c19a4e88f49ba3496751c4b87ebcfa0f6b47f0ce

> >  sub err_txt {
> >  	my ($ctx, $err) = @_;
> >  	my $u = $ctx->{-inbox}->base_url($ctx->{env}) . '_/text/help/';
> >  	$err =~ s/^\s*Exception:\s*//; # bad word to show users :P
> > +	$err =~ s!(\S+)!path2inc($1)!sge;

One potential issue is this won't match paths if somebody has
spaces in their installation paths.  But I suppose few
distros or users building their own Perl are that strange...

^ permalink raw reply	[relevance 14%]

* RE: [PATCH] searchview: avoid displaying full paths on errors
  2019-06-25  6:37 13%     ` [PATCH] searchview: avoid displaying full paths on errors Eric Wong
@ 2019-06-25  7:33 14%       ` Ali Alnubani
  2019-06-26  6:35 14%         ` Eric Wong
  0 siblings, 1 reply; 3+ results
From: Ali Alnubani @ 2019-06-25  7:33 UTC (permalink / raw)
  To: Eric Wong; +Cc: meta@public-inbox.org

Thanks for the patch Eric.
I apologize for taking so long to update mine.

> -----Original Message-----
> From: Eric Wong <e@80x24.org>
> Sent: Tuesday, June 25, 2019 9:37 AM
> To: Ali Alnubani <alialnu@mellanox.com>
> Cc: meta@public-inbox.org
> Subject: [PATCH] searchview: avoid displaying full paths on errors
> 
> Displaying full path names of installed modules could expose unnecessary
> information about user home directory names or other potentially sensitive
> information.  However, displaying a module name could still be useful for
> diagnosing problems, so map full paths to the relevant part of the path name
> which is relevant to the package name.
> 
> Reported-by: Ali Alnubani <alialnu@mellanox.com>
> 
<removed>
> ---
>  lib/PublicInbox/SearchView.pm | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/lib/PublicInbox/SearchView.pm b/lib/PublicInbox/SearchView.pm
> index 6f07279b..a8b66dda 100644
> --- a/lib/PublicInbox/SearchView.pm
> +++ b/lib/PublicInbox/SearchView.pm
> @@ -15,6 +15,7 @@ use PublicInbox::MIME;  require PublicInbox::Git;
> require PublicInbox::SearchThread;  our $LIM = 200;
> +my %rmap_inc;
> 
>  sub noop {}
> 
> @@ -138,10 +139,27 @@ sub mset_summary {
>  	*noop;
>  }
> 
> +# shorten "/full/path/to/Foo/Bar.pm" to "Foo/Bar.pm" so error #
> +messages don't reveal FS layout info in case people use non-standard #
> +installation paths sub path2inc ($) {
> +	my $full = $_[0];
> +	if (my $short = $rmap_inc{$full}) {
> +		return $short;
> +	} elsif (!scalar(keys %rmap_inc) && -e $full) {
> +		%rmap_inc = map {; "$INC{$_}" => $_ } keys %INC;
> +		# fall back to basename as last resort
> +		$rmap_inc{$full} // (split('/', $full))[-1];
> +	} else {
> +		$full;
> +	}
> +}
> +
>  sub err_txt {
>  	my ($ctx, $err) = @_;
>  	my $u = $ctx->{-inbox}->base_url($ctx->{env}) . '_/text/help/';
>  	$err =~ s/^\s*Exception:\s*//; # bad word to show users :P
> +	$err =~ s!(\S+)!path2inc($1)!sge;
>  	$err = ascii_html($err);
>  	"\nBad query: <b>$err</b>\n" .
>  		qq{See <a\nhref="$u">$u</a> for help on using search};
> --
> EW

Thanks,
Ali

^ permalink raw reply	[relevance 14%]

* [PATCH] searchview: avoid displaying full paths on errors
  @ 2019-06-25  6:37 13%     ` Eric Wong
  2019-06-25  7:33 14%       ` Ali Alnubani
  0 siblings, 1 reply; 3+ results
From: Eric Wong @ 2019-06-25  6:37 UTC (permalink / raw)
  To: Ali Alnubani; +Cc: meta

Displaying full path names of installed modules could expose
unnecessary information about user home directory names or other
potentially sensitive information.  However, displaying a module
name could still be useful for diagnosing problems, so map full
paths to the relevant part of the path name which is relevant to
the package name.

Reported-by: Ali Alnubani <alialnu@mellanox.com>
  https://public-inbox.org/meta/20190611193815.c4uovtlp574bid6x@dcvr/
---
 lib/PublicInbox/SearchView.pm | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/lib/PublicInbox/SearchView.pm b/lib/PublicInbox/SearchView.pm
index 6f07279b..a8b66dda 100644
--- a/lib/PublicInbox/SearchView.pm
+++ b/lib/PublicInbox/SearchView.pm
@@ -15,6 +15,7 @@ use PublicInbox::MIME;
 require PublicInbox::Git;
 require PublicInbox::SearchThread;
 our $LIM = 200;
+my %rmap_inc;
 
 sub noop {}
 
@@ -138,10 +139,27 @@ sub mset_summary {
 	*noop;
 }
 
+# shorten "/full/path/to/Foo/Bar.pm" to "Foo/Bar.pm" so error
+# messages don't reveal FS layout info in case people use non-standard
+# installation paths
+sub path2inc ($) {
+	my $full = $_[0];
+	if (my $short = $rmap_inc{$full}) {
+		return $short;
+	} elsif (!scalar(keys %rmap_inc) && -e $full) {
+		%rmap_inc = map {; "$INC{$_}" => $_ } keys %INC;
+		# fall back to basename as last resort
+		$rmap_inc{$full} // (split('/', $full))[-1];
+	} else {
+		$full;
+	}
+}
+
 sub err_txt {
 	my ($ctx, $err) = @_;
 	my $u = $ctx->{-inbox}->base_url($ctx->{env}) . '_/text/help/';
 	$err =~ s/^\s*Exception:\s*//; # bad word to show users :P
+	$err =~ s!(\S+)!path2inc($1)!sge;
 	$err = ascii_html($err);
 	"\nBad query: <b>$err</b>\n" .
 		qq{See <a\nhref="$u">$u</a> for help on using search};
-- 
EW

^ permalink raw reply related	[relevance 13%]

Results 1-3 of 3 | reverse | options above
-- pct% links below jump to the message on this page, permalinks otherwise --
2019-06-11 19:38     [RFC] searchview: don't be too verbose about bad queries Eric Wong
2019-06-12  8:36     ` Ali Alnubani
2019-06-12 17:18       ` Eric Wong
2019-06-25  6:37 13%     ` [PATCH] searchview: avoid displaying full paths on errors Eric Wong
2019-06-25  7:33 14%       ` Ali Alnubani
2019-06-26  6:35 14%         ` Eric Wong

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