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2012-05-30 Ramon Novoa <rnovoa@artica.es> 

* pandora_agent: Merged from unix agent. Check for valid regular
	  expressions before adding module conditions.



git-svn-id: https://svn.code.sf.net/p/pandora/code/trunk@6374 c3f86ba8-e40f-0410-aaad-9ba5e7f4b01f
This commit is contained in:
Ramon Novoa 2012-05-30 16:56:26 +00:00
parent 6cfbb4205a
commit 7f1d4177df
2 changed files with 38 additions and 4 deletions
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5
pandora_agents/pc/ChangeLog
View File

@ -1,3 +1,8 @@
2012-05-30 Ramon Novoa <rnovoa@artica.es>
* pandora_agent: Merged from unix agent. Check for valid regular
expressions before adding module conditions.
2012-04-25 Miguel de Dios <miguel.dedios@artica.es>
* DEBIAN/postinst, DEBIAN/make_deb_package.sh: disabled the checking

37
pandora_agents/pc/pandora_agent
View File

@ -220,7 +220,8 @@ my $OS_VERSION = guess_os_version ($OS);
# Windows specific modules
my $Win32 = undef;
if ($OS eq 'windows') {
use PandoraWin32;
require PandoraWin32;
PandoraWin32->import();
}
################################################################################
@ -241,6 +242,22 @@ sub error ($) {
`logger -i -t pandora_agent_daemon [ERROR] $msg 2>/dev/null`;
}
################################################################################
# Check a regular expression. Returns 1 if its valid, 0 otherwise.
################################################################################
sub valid_regexp ($) {
my $regexp = shift;
eval {
'' =~ /$regexp/;
};
# Something went wrong
return 0 if ($@);
return 1;
}
################################################################################
# Recursively delete files and directories.
################################################################################
@ -405,7 +422,11 @@ sub parse_conf_modules($) {
push (@{$module->{'precondition'}}, {'operator' => '()', 'value_1' => $1, 'value_2' => $2, 'command' => $3});
# Regular expression
} elsif ($action =~ /^\s*=~\s+(\S*)\s+(.*)$/) {
push (@{$module->{'precondition'}}, {'operator' => '=~', 'value_1' => $1, 'command' => $2});
if (valid_regexp ($1)) {
push (@{$module->{'precondition'}}, {'operator' => '=~', 'value_1' => $1, 'command' => $2});
} else {
log_message ('setup', "Invalid regular expression in module precondition: $line");
}
}
} elsif ($line =~ /^\s*module_exec\s+(.+)$/) {
$module->{'func'} = \&module_exec;
@ -462,7 +483,11 @@ sub parse_conf_modules($) {
push (@{$module->{'conditions'}}, {'operator' => '()', 'value_1' => $1, 'value_2' => $2, 'command' => $3});
# Regular expression
} elsif ($action =~ /^\s*=~\s+(\S*)\s+(.*)$/) {
push (@{$module->{'conditions'}}, {'operator' => '=~', 'value_1' => $1, 'command' => $2});
if (valid_regexp ($1)) {
push (@{$module->{'conditions'}}, {'operator' => '=~', 'value_1' => $1, 'command' => $2});
} else {
log_message ('setup', "Invalid regular expression in module condition: $line");
}
}
} elsif ($line =~ /^\s*module_intensive_condition\s+(.*)$/) {
my $action = $1;
@ -477,7 +502,11 @@ sub parse_conf_modules($) {
push (@{$module->{'intensive_conditions'}}, {'operator' => '()', 'value_1' => $1, 'value_2' => $2});
# Regular expression
} elsif ($action =~ /^\s*=~\s+(\S*)\s*$/) {
push (@{$module->{'intensive_conditions'}}, {'operator' => '=~', 'value_1' => $1});
if (valid_regexp ($1)) {
push (@{$module->{'intensive_conditions'}}, {'operator' => '=~', 'value_1' => $1});
} else {
log_message ('setup', "Invalid regular expression in intensive condition: $line");
}
}
} elsif ($line =~ /^\s*module_crontab\s+(((\*|(\d+(-\d+){0,1}))\s*){5}).*$/) {
$module->{'cron'} = $1;