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#!/usr/bin/perl -T
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# This Source Code Form is "Incompatible With Secondary Licenses", as
# defined by the Mozilla Public License, v. 2.0.
use 5.14.0;
use strict;
use warnings;
use lib qw(. lib local/lib/perl5);
use Bugzilla;
use Bugzilla::Constants;
use Bugzilla::Util;
use Bugzilla::Error;
use Bugzilla::Status;
use File::Basename;
use Digest::SHA qw(hmac_sha256_base64);
# 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 = {};
# We use a dummy product instance with ID 0, representing all products
my $product_all = {id => 0};
bless($product_all, 'Bugzilla::Product');
if (!Bugzilla->feature('old_charts')) {
ThrowUserError('feature_disabled', { feature => 'old_charts' });
}
my $dir = bz_locations()->{'datadir'} . "/mining";
my $graph_dir = bz_locations()->{'graphsdir'};
my $graph_url = basename($graph_dir);
my $product_id = $cgi->param('product_id');
Bugzilla->switch_to_shadow_db();
if (! defined($product_id)) {
# Can we do bug charts?
(-d $dir && -d $graph_dir)
|| ThrowCodeError('chart_dir_nonexistent',
{dir => $dir, graph_dir => $graph_dir});
my %default_sel = map { $_ => 1 } BUG_STATE_OPEN;
my @datasets;
my @data = get_data($dir);
foreach my $dataset (@data) {
my $datasets = {};
$datasets->{'value'} = $dataset;
$datasets->{'selected'} = $default_sel{$dataset} ? 1 : 0;
push(@datasets, $datasets);
}
$vars->{'datasets'} = \@datasets;
print $cgi->header();
}
else {
my $product;
# For security and correctness, validate the value of the "product_id" form
# variable. Valid values are IDs of those products for which the user has
# permissions which appear in the "product_id" drop-down menu on the report
# generation form. The product_id 0 is a special case, meaning "All
# Products".
if ($product_id) {
$product = Bugzilla::Product->new($product_id);
$product && $user->can_see_product($product->name)
|| ThrowUserError('product_access_denied',
{id => $product_id});
}
else {
$product = $product_all;
}
# Make sure there is something to plot.
my @datasets = $cgi->multi_param('datasets');
scalar(@datasets) || ThrowUserError('missing_datasets');
if (grep { $_ !~ /^[A-Za-z0-9:_-]+$/ } @datasets) {
ThrowUserError('invalid_datasets', {'datasets' => \@datasets});
}
# 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 IDs.
my $project = bz_locations()->{'project'} || '';
my $image_file = join(':', ($project, $product->id, @datasets));
my $key = Bugzilla->localconfig->{'site_wide_secret'};
$image_file = hmac_sha256_base64($image_file, $key) . '.png';
$image_file =~ s/\+/-/g;
$image_file =~ s/\//_/g;
trick_taint($image_file);
if (! -e "$graph_dir/$image_file") {
generate_chart($dir, "$graph_dir/$image_file", $product, \@datasets);
}
$vars->{'url_image'} = "$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());
#####################
# Subroutines #
#####################
sub get_data {
my $dir = shift;
my @datasets;
open(DATA, '<', "$dir/0")
|| ThrowCodeError('chart_file_open_fail', {filename => "$dir/0"});
while (<DATA>) {
if (/^# fields?: (.+)\s*$/) {
@datasets = grep ! /date/i, (split /\|/, $1);
last;
}
}
close(DATA);
return @datasets;
}
sub generate_chart {
my ($dir, $image_file, $product, $datasets) = @_;
my $data_file = $dir . '/' . $product->id;
if (!open(FILE, '<', $data_file)) {
ThrowCodeError('chart_data_not_generated', {'product' => $product});
}
my $product_in_title = $product->id ? $product->name : 'All Products';
my @fields;
my @labels = qw(DATE);
my %datasets = map { $_ => 1 } @$datasets;
my %data = ();
while (<FILE>) {
chomp;
next unless $_;
if (/^#/) {
if (/^# fields?: (.*)\s*$/) {
@fields = split /\||\r/, $1;
$data{$_} ||= [] foreach @fields;
unless ($fields[0] =~ /date/i) {
ThrowCodeError('chart_datafile_corrupt', {'file' => $data_file});
}
push @labels, grep($datasets{$_}, @fields);
}
next;
}
unless (@fields) {
ThrowCodeError('chart_datafile_corrupt', {'file' => $data_file});
}
my @line = split /\|/;
my $date = $line[0];
my ($yy, $mm, $dd) = $date =~ /^\d{2}(\d{2})(\d{2})(\d{2})$/;
push @{$data{DATE}}, "$mm/$dd/$yy";
for my $i (1 .. $#fields) {
my $field = $fields[$i];
if (! defined $line[$i] or $line[$i] eq '') {
# no data point given, don't plot (this will probably
# generate loads of Chart::Base warnings, but that's not
# our fault.)
push @{$data{$field}}, undef;
}
else {
push @{$data{$field}}, $line[$i];
}
}
}
shift @labels;
close FILE;
if (! @{$data{DATE}}) {
ThrowUserError('insufficient_data_points');
}
my $img = Chart::Lines->new (800, 600);
my $i = 0;
my $MAXTICKS = 20; # Try not to show any more x ticks than this.
my $skip = 1;
if (@{$data{DATE}} > $MAXTICKS) {
$skip = int((@{$data{DATE}} + $MAXTICKS - 1) / $MAXTICKS);
}
my %settings =
(
"title" => "Status Counts for $product_in_title",
"x_label" => "Dates",
"y_label" => "Bug Counts",
"legend_labels" => \@labels,
"skip_x_ticks" => $skip,
"y_grid_lines" => "true",
"grey_background" => "false",
"colors" => {
# default dataset colours are too alike
dataset4 => [0, 0, 0], # black
},
);
$img->set (%settings);
$img->png($image_file, [ @data{('DATE', @labels)} ]);
}
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