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#!/usr/bin/perl -wT
# -*- Mode: perl; indent-tabs-mode: nil -*-
#
# The contents of this file are subject to the Mozilla Public
# License Version 1.1 (the "License"); you may not use this file
# except in compliance with the License. You may obtain a copy of
# the License at http://www.mozilla.org/MPL/
#
# Software distributed under the License is distributed on an "AS
# IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
# implied. See the License for the specific language governing
# rights and limitations under the License.
#
# The Original Code is the Bugzilla Bug Tracking System.
#
# The Initial Developer of the Original Code is Netscape Communications
# Corporation. Portions created by Netscape are
# Copyright (C) 1998 Netscape Communications Corporation. All
# Rights Reserved.
#
# Contributor(s): Harrison Page <harrison@netscape.com>,
# Terry Weissman <terry@mozilla.org>,
# Dawn Endico <endico@mozilla.org>
# Bryce Nesbitt <bryce@nextbus.COM>,
# Joe Robins <jmrobins@tgix.com>,
# Gervase Markham <gerv@gerv.net> and Adam Spiers <adam@spiers.net>
# Added ability to chart any combination of resolutions/statuses.
# Derive the choice of resolutions/statuses from the -All- data file
# Removed hardcoded order of resolutions/statuses when reading from
# daily stats file, so now works independently of collectstats.pl
# version
# Added image caching by date and datasets
# Myk Melez <myk@mozilla.org):
# Implemented form field validation and reorganized code.
use strict;
use lib qw(.);
use Bugzilla::Config qw(:DEFAULT $datadir);
require "CGI.pl";
require "globals.pl";
use vars qw(@legal_product); # globals from er, globals.pl
eval "use GD";
$@ && ThrowCodeError("gd_not_installed");
eval "use Chart::Lines";
$@ && ThrowCodeError("chart_lines_not_installed");
my $dir = "$datadir/mining";
my $graph_dir = "graphs";
use Bugzilla;
# 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.
Bugzilla->login();
GetVersionTable();
Bugzilla->switch_to_shadow_db();
my $cgi = Bugzilla->cgi;
# We only want those products that the user has permissions for.
my @myproducts;
push( @myproducts, "-All-");
push( @myproducts, GetSelectableProducts());
if (! defined $cgi->param('product')) {
print $cgi->header();
PutHeader("Bug Charts");
choose_product(@myproducts);
PutFooter();
} 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 => $product});
# We don't want people to be able to view
# reports for products they don't have permissions for...
if (($product ne '-All-') && (!CanEnterProduct($product))) {
ThrowUserError("report_access_denied");
}
# We've checked that the product exists, and that the user can see it
# This means that is OK to detaint
trick_taint($product);
print $cgi->header(-Content_Disposition=>'inline; filename=bugzilla_report.html');
PutHeader("Bug Charts");
show_chart($product);
PutFooter();
}
##################################
# user came in with no form data #
##################################
sub choose_product {
my @myproducts = (@_);
my $datafile = daily_stats_filename('-All-');
# Can we do bug charts?
(-d $dir && -d $graph_dir)
|| ThrowCodeError("chart_dir_nonexistent",
{dir => $dir, graph_dir => $graph_dir});
open(DATA, "$dir/$datafile")
|| ThrowCodeError("chart_file_open_fail", {filename => "$dir/$datafile"});
print <<FIN;
<center>
<h1>Welcome to the Bugzilla Charting Kitchen</h1>
<form method=get action=reports.cgi>
<table border=1 cellpadding=5>
<tr>
<td align=center><b>Product:</b></td>
<td align=center>
<select name="product">
FIN
foreach my $product (@myproducts) {
$product = html_quote($product);
print qq{<option value="$product">$product</option>};
}
print <<FIN;
</select>
</td>
</tr>
<tr>
<td align=center><b>Chart datasets:</b></td>
<td align=center>
<select name="datasets" multiple size=5>
FIN
my @datasets = ();
while (<DATA>) {
if (/^# fields?: (.+)\s*$/) {
@datasets = grep ! /date/i, (split /\|/, $1);
last;
}
}
close(DATA);
my %default_sel = map { $_ => 1 }
qw/UNCONFIRMED NEW ASSIGNED REOPENED/;
foreach my $dataset (@datasets) {
my $sel = $default_sel{$dataset} ? ' selected' : '';
print qq{<option value="$dataset:"$sel>$dataset</option>\n};
}
print <<FIN;
</select>
</td>
</tr>
<tr>
<td colspan=2 align=center>
<input type=submit value=Continue>
</td>
</tr>
</table>
</center>
</form>
<p>
FIN
}
sub daily_stats_filename {
my ($prodname) = @_;
$prodname =~ s/\//-/gs;
return $prodname;
}
sub show_chart {
my ($product) = @_;
if (! defined $cgi->param('datasets')) {
ThrowUserError("missing_datasets");
}
my $datasets = join('', $cgi->param('datasets'));
print <<FIN;
<center>
FIN
my $type = chart_image_type();
my $data_file = daily_stats_filename($product);
my $image_file = chart_image_name($data_file, $type, $datasets);
my $url_image = "$graph_dir/" . url_quote($image_file);
if (! -e "$graph_dir/$image_file") {
generate_chart("$dir/$data_file", "$graph_dir/$image_file", $type,
$product, $datasets);
}
print <<FIN;
<img src="$url_image">
<br clear=left>
<br>
FIN
}
sub chart_image_type {
# what chart type should we be generating?
my $testimg = Chart::Lines->new(2,2);
my $type = $testimg->can('gif') ? "gif" : "png";
undef $testimg;
return $type;
}
sub chart_image_name {
my ($data_file, $type, $datasets) = @_;
# This routine generates a filename from the requested fields. The problem
# is that we have to check the safety of doing this. We can't just require
# that the fields exist, because what stats were collected could change
# over time (eg by changing the resolutions available)
# Instead, just require that each field name consists only of letters
# and number
if ($datasets !~ m/^[A-Za-z0-9:]+$/) {
die "Invalid 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}_${id}.$type";
}
sub day_of_year {
my ($mday, $month, $year) = (localtime())[3 .. 5];
$month += 1;
$year += 1900;
my $date = sprintf "%02d%02d%04d", $mday, $month, $year;
}
sub generate_chart {
my ($data_file, $image_file, $type, $product, $datasets) = @_;
if (! open FILE, $data_file) {
ThrowCodeError("chart_data_not_generated");
}
my @fields;
my @labels = qw(DATE);
my %datasets = map { $_ => 1 } split /:/, $datasets;
my %data = ();
while (<FILE>) {
chomp;
next unless $_;
if (/^#/) {
if (/^# fields?: (.*)\s*$/) {
@fields = split /\||\r/, $1;
ThrowCodeError("chart_datafile_corrupt", {file => $data_file})
unless $fields[0] =~ /date/i;
push @labels, grep($datasets{$_}, @fields);
}
next;
}
ThrowCodeError("chart_datafile_corrupt", {file => $data_file})
unless @fields;
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",
"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);
$img->$type($image_file, [ @data{('DATE', @labels)} ]);
}
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