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-rwxr-xr-xreports.cgi122
1 files changed, 52 insertions, 70 deletions
diff --git a/reports.cgi b/reports.cgi
index fd84f5330..01bbb50c7 100755
--- a/reports.cgi
+++ b/reports.cgi
@@ -38,31 +38,28 @@ use Bugzilla::Util;
use Bugzilla::Error;
use Bugzilla::Status;
+use File::Basename;
+use Digest::MD5 qw(md5_hex);
+
# If we're using bug groups for products, we should apply those restrictions
# to viewing reports, as well. Time to check the login in that case.
my $user = Bugzilla->login();
+my $cgi = Bugzilla->cgi;
+my $template = Bugzilla->template;
+my $vars = {};
if (!Bugzilla->feature('old_charts')) {
ThrowCodeError('feature_disabled', { feature => 'old_charts' });
}
my $dir = bz_locations()->{'datadir'} . "/mining";
-my $graph_url = 'graphs';
-my $graph_dir = bz_locations()->{'libpath'} . '/' .$graph_url;
+my $graph_dir = bz_locations()->{'graphsdir'};
+my $graph_url = basename($graph_dir);
+my $product_name = $cgi->param('product') || '';
Bugzilla->switch_to_shadow_db();
-my $cgi = Bugzilla->cgi;
-my $template = Bugzilla->template;
-my $vars = {};
-
-# We only want those products that the user has permissions for.
-my @myproducts;
-push( @myproducts, "-All-");
-# Extract product names from objects and add them to the list.
-push( @myproducts, map { $_->name } @{$user->get_selectable_products} );
-
-if (! defined $cgi->param('product')) {
+if (!$product_name) {
# Can we do bug charts?
(-d $dir && -d $graph_dir)
|| ThrowCodeError('chart_dir_nonexistent',
@@ -80,49 +77,61 @@ if (! defined $cgi->param('product')) {
push(@datasets, $datasets);
}
+ # We only want those products that the user has permissions for.
+ my @myproducts = ('-All-');
+ # Extract product names from objects and add them to the list.
+ push( @myproducts, map { $_->name } @{$user->get_selectable_products} );
+
$vars->{'datasets'} = \@datasets;
$vars->{'products'} = \@myproducts;
print $cgi->header();
-
- $template->process('reports/old-charts.html.tmpl', $vars)
- || ThrowTemplateError($template->error());
- exit;
}
else {
- my $product = $cgi->param('product');
-
# For security and correctness, validate the value of the "product" form variable.
# Valid values are those products for which the user has permissions which appear
# in the "product" drop-down menu on the report generation form.
- grep($_ eq $product, @myproducts)
- || ThrowUserError("invalid_product_name", {product => $product});
+ my ($product) = grep { $_->name eq $product_name } @{$user->get_selectable_products};
+ ($product || $product_name eq '-All-')
+ || ThrowUserError('invalid_product_name', {product => $product_name});
- # We've checked that the product exists, and that the user can see it
- # This means that is OK to detaint
- trick_taint($product);
+ # Product names can change over time. Their ID cannot; so use the ID
+ # to generate the filename.
+ my $prod_id = $product ? $product->id : 0;
- defined($cgi->param('datasets')) || ThrowUserError('missing_datasets');
+ # Make sure there is something to plot.
+ my @datasets = $cgi->param('datasets');
+ scalar(@datasets) || ThrowUserError('missing_datasets');
- my $datasets = join('', $cgi->param('datasets'));
+ if (grep { $_ !~ /^[A-Za-z0-9:_-]+$/ } @datasets) {
+ ThrowUserError('invalid_datasets', {'datasets' => \@datasets});
+ }
- my $data_file = daily_stats_filename($product);
- my $image_file = chart_image_name($data_file, $datasets);
- my $url_image = correct_urlbase() . "$graph_url/$image_file";
+ # Filenames must not be guessable as they can point to products
+ # you are not allowed to see. Also, different projects can have
+ # the same product names.
+ my $key = Bugzilla->localconfig->{'site_wide_secret'};
+ my $project = bz_locations()->{'project'} || '';
+ my $image_file = join(':', ($key, $project, $prod_id, @datasets));
+ # Wide characters cause md5_hex() to die.
+ if (Bugzilla->params->{'utf8'}) {
+ utf8::encode($image_file) if utf8::is_utf8($image_file);
+ }
+ $image_file = md5_hex($image_file) . '.png';
+ trick_taint($image_file);
if (! -e "$graph_dir/$image_file") {
- generate_chart("$dir/$data_file", "$graph_dir/$image_file", $product, $datasets);
+ generate_chart($dir, "$graph_dir/$image_file", $product, \@datasets);
}
- $vars->{'url_image'} = $url_image;
+ $vars->{'url_image'} = "$graph_url/$image_file";
print $cgi->header(-Content_Disposition=>'inline; filename=bugzilla_report.html');
-
- $template->process('reports/old-charts.html.tmpl', $vars)
- || ThrowTemplateError($template->error());
- exit;
}
+$template->process('reports/old-charts.html.tmpl', $vars)
+ || ThrowTemplateError($template->error());
+
#####################
# Subroutines #
#####################
@@ -131,9 +140,8 @@ sub get_data {
my $dir = shift;
my @datasets;
- my $datafile = daily_stats_filename('-All-');
- open(DATA, '<', "$dir/$datafile")
- || ThrowCodeError('chart_file_open_fail', {filename => "$dir/$datafile"});
+ open(DATA, '<', "$dir/-All-")
+ || ThrowCodeError('chart_file_open_fail', {filename => "$dir/-All-"});
while (<DATA>) {
if (/^# fields?: (.+)\s*$/) {
@@ -145,38 +153,12 @@ sub get_data {
return @datasets;
}
-sub daily_stats_filename {
- my ($prodname) = @_;
- $prodname =~ s/\//-/gs;
- return $prodname;
-}
-
-sub chart_image_name {
- my ($data_file, $datasets) = @_;
-
- # This routine generates a filename from the requested fields. The problem
- # is that we have to check the safety of doing this. We can't just require
- # that the fields exist, because what stats were collected could change
- # over time (eg by changing the resolutions available)
- # Instead, just require that each field name consists only of letters,
- # numbers, underscores and hyphens.
-
- if ($datasets !~ m/^[A-Za-z0-9:_-]+$/) {
- ThrowUserError('invalid_datasets', {'datasets' => $datasets});
- }
-
- # Since we pass the tests, consider it OK
- trick_taint($datasets);
-
- # Cache charts by generating a unique filename based on what they
- # show. Charts should be deleted by collectstats.pl nightly.
- my $id = join ("_", split (":", $datasets));
-
- return "${data_file}_${id}.png";
-}
-
sub generate_chart {
- my ($data_file, $image_file, $product, $datasets) = @_;
+ my ($dir, $image_file, $product, $datasets) = @_;
+ $product = $product ? $product->name : '-All-';
+ my $data_file = $product;
+ $data_file =~ s/\//-/gs;
+ $data_file = $dir . '/' . $data_file;
if (! open FILE, $data_file) {
if ($product eq '-All-') {
@@ -187,7 +169,7 @@ sub generate_chart {
my @fields;
my @labels = qw(DATE);
- my %datasets = map { $_ => 1 } split /:/, $datasets;
+ my %datasets = map { $_ => 1 } @$datasets;
my %data = ();
while (<FILE>) {