Fix for bug 38854: reports.cgi needs to escape (untrusted) url params

Patch by Myk Melez <myk@mozilla.org>
r= jake@acutex.net
This commit is contained in:
justdave%syndicomm.com 2001-05-10 03:02:52 +00:00
Родитель 9381e156bd
Коммит e2700ba982
1 изменённых файлов: 45 добавлений и 61 удалений

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@ -35,6 +35,8 @@
# 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 diagnostics;
use strict;
@ -58,7 +60,6 @@ my %bugsperperson;
# while this looks odd/redundant, it allows us to name
# functions differently than the value passed in
my %reports =
(
"most_doomed" => \&most_doomed,
@ -72,19 +73,6 @@ my %reports =
ConnectToDatabase(1);
quietly_check_login();
print "Content-type: text/html\n";
# Changing attachment to inline to resolve 46897 - zach@zachlipton.com
print "Content-disposition: inline; filename=bugzilla_report.html\n\n";
# If we're here for the first time, give a banner. Else respect the banner flag.
if ( (!defined $FORM{'product'}) || ($FORM{'banner'}) ) {
PutHeader ("Bug Reports")
}
else {
print("<html><head><title>Bug Reports</title></head><body bgcolor=\"#FFFFFF\">");
}
GetVersionTable();
# If the usebuggroups parameter is set, we don't want to list all products.
@ -103,54 +91,60 @@ if(Param("usebuggroups")) {
push( @myproducts, "-All-", @legal_product );
}
$FORM{'output'} ||= "most_doomed"; # a reasonable default
if (! defined $FORM{'product'}) {
print "Content-type: text/html\n\n";
PutHeader("Bug Reports");
&choose_product;
}
else {
PutFooter();
} else {
# For security and correctness, validate the value of the "product" form variable.
# Valid values are those products for which the user has permissions which appear
# in the "product" drop-down menu on the report generation form.
grep($_ eq $FORM{'product'}, @myproducts)
|| DisplayError("You entered an invalid product name.") && exit;
# If usebuggroups is on, we don't want people to be able to view
# reports for products they don't have permissions for...
if(Param("usebuggroups") &&
GroupExists($FORM{'product'}) &&
!UserInGroup($FORM{'product'}))
{
print "<H1>Permission denied.</H1>\n";
print "Sorry; you do not have the permissions necessary to view\n";
print "reports for this product.\n";
print "<P>\n";
PutFooter();
exit;
}
Param("usebuggroups")
&& GroupExists($FORM{'product'})
&& !UserInGroup($FORM{'product'})
&& DisplayError("You do not have the permissions necessary to view reports for this product.")
&& exit;
# we want to be careful about what subroutines
# can be called from outside. modify %reports
# accordingly when a new report type is added
# For security and correctness, validate the value of the "output" form variable.
# Valid values are the keys from the %reports hash defined above which appear in
# the "output" drop-down menu on the report generation form.
$FORM{'output'} ||= "most_doomed"; # a reasonable default
grep($_ eq $FORM{'output'}, keys %reports)
|| DisplayError("You entered an invalid output type.")
&& exit;
if (! exists $reports{$FORM{'output'}}) {
$FORM{'output'} = "most_doomed"; # a reasonable default
}
my $f = $reports{$FORM{'output'}};
# Output appropriate HTTP response headers
print "Content-type: text/html\n";
# Changing attachment to inline to resolve 46897 - zach@zachlipton.com
print "Content-disposition: inline; filename=bugzilla_report.html\n\n";
if (! defined $f) {
print "start over, your form data was all messed up.<p>\n";
foreach (keys %::FORM) {
print "<font color=blue>$_</font> : " .
($FORM{$_} ? $FORM{$_} : "undef") . "<br>\n";
}
PutFooter() if $FORM{banner};
exit;
if ($FORM{'banner'}) {
PutHeader("Bug Reports");
}
else {
print("<html><head><title>Bug Reports</title></head><body bgcolor=\"#FFFFFF\">");
}
&{$f};
# Execute the appropriate report generation function
# (the one whose name is the same as the value of the "output" form variable).
&{$reports{$FORM{'output'}}};
# ??? why is this necessary? formatting looks fine without it
print "<p>";
PutFooter() if $FORM{banner};
}
print <<FIN;
<p>
FIN
PutFooter() if $FORM{banner};
##################################
@ -257,7 +251,6 @@ FIN
FIN
#Add this above to get a control for showing the SQL query:
#<input type=checkbox name=showsql value=1>&nbsp;Show SQL<br>
PutFooter();
}
sub most_doomed {
@ -485,11 +478,6 @@ FIN
FIN
}
sub is_legal_product {
my $product = shift;
return grep { $_ eq $product} @myproducts;
}
sub daily_stats_filename {
my ($prodname) = @_;
$prodname =~ s/\//-/gs;
@ -501,10 +489,6 @@ sub show_chart {
# here. Should probably return some decent error message.
return unless $use_gd;
if (! is_legal_product ($FORM{'product'})) {
&die_politely ("Unknown product: $FORM{'product'}");
}
if (! $FORM{datasets}) {
die_politely("You didn't select any datasets to plot");
}