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package Apache::ASP;
sub ProcessErrors {
my $self = shift;
my $r = $self->{r};
my $status;
# just to make sure we have everything we need for the errors templates
$self->InitPackageGlobals;
if($self->{dbg} >= 2) {
$self->PrettyError();
$status = 200;
} else {
if($self->Response->{header_done}) {
$self->{r}->print("<!-- Error -->");
}
# debug of 2+ and mail_errors_to are mutually exclusive,
# since debugging 2+ is for development, and you don't need to
# be emailed the error, if its right in your browser
$self->{mail_alert_to} = &config($self,'MailAlertTo') || 0;
$self->{mail_errors_to} = &config($self,'MailErrorsTo') || 0;
$self->{mail_errors_to} && $self->MailErrors();
$self->{mail_alert_to} && $self->MailAlert();
$status = 500;
}
}
sub PrettyError {
my($self) = @_;
my $response = $self->{Response};
my $out = $response->{out};
$response->{ContentType} = 'text/html';
$$out = $self->PrettyErrorHelper();
$response->Flush();
1;
}
sub PrettyErrorHelper {
my $self = shift;
my $response_buffer = $self->{Response}{out};
$self->{Response}->Clear();
my $errors_out = '';
my @eval_error_lines = ();
if($self->{errors_output}[0]) {
my($url, $file);
$errors_out = join("\n<li> ", '', map { $self->Escape($_) } @{$self->{errors_output}});
# link in the line number to the compiled program
$self->Debug("errors out $errors_out");
if($errors_out =~
s|\s+at\s+(.*?)\s+line\s+(\d+)|
{
my($file, $line_no) = ($1, $2);
if($file =~ /\)/) {
" at $file line $line_no";
} else {
$url = $self->{Server}->URLEncode($file.' '.$line_no);
" at $file <a href=#$url>line $line_no</a>";
}
}
|exs
)
{
push(@eval_error_lines, $url);
}
}
my $out = <<OUT;
<tt>
<b><u>Errors Output</u></b>
<ol>
$errors_out
</ol>
<b><u>Debug Output</u></b>
<ol>
@{[join("\n<li> ", '', map { $_ } @{$self->{debugs_output}}) ]}
</ol>
</tt>
<pre>
OUT
;
# could be looking at a compilation error, then set the script to what
# we were compiling (maybe global.asa), else its our real script
# with probably a runtime error
my $script;
if($self->{compile_error}) {
$script = ${$self->{compile_eval}};
}
if($$response_buffer) {
my $length = &config($self, 'DebugBufferLength') || 100;
$out .= "<b><u>Last $length Bytes of Buffered Output</u></b>\n\n";
$out .= $self->Escape(substr($$response_buffer, -1 * $length));
$out .= "\n\n";
}
my $error_desc;
if($script) {
$error_desc = "Compiled Data with Error";
} else {
$error_desc = "ASP to Perl Script";
my $run_perl_script = $self->{run_perl_script};
$script = $run_perl_script ? $$run_perl_script : '';
}
$out .= "<b><u>$error_desc</u></b><a name=1> </a>\n\n";
my($file_context, $lineno) = ('', 0);
for(split(/\n/, $script)) {
my($lineprint, $lineurl,$frag);
if ($_ =~ /^#\s*line (\d+) (.+)$/){
$lineno = $1;
$file_context = $2;
$lineurl = ' -';
} elsif (($lineno == 0)) {
$lineurl = ' -';
} else {
$frag = $self->{Server}->URLEncode($file_context.' '.$lineno);
$lineurl = "<a name=$frag>".sprintf('%3d', $lineno)."</a>";
$lineno++;
}
$frag ||= '';
grep($frag eq $_, @eval_error_lines) &&
($lineurl = "<b><font color=red>$lineurl</font></b>");
unless(&config($self, 'CommandLine')) {
$_ = $self->Escape($_);
}
$out .= "$lineurl: $_\n";
}
$out .= <<OUT;
</pre>
<hr width=30% size=1>\n<font size=-1>
<i>
An error has occured with the Apache::ASP script just run.
If you are the developer working on this script, and cannot work
through this problem, please try researching it at the
<a href=http://www.apache-asp.org/>Apache::ASP web site</a>,
specifically the <a href=http://www.apache-asp.org/faq.html>FAQ section</a>.
Failing that, check out your
<a href=http://www.apache-asp.org/support.html>support options</a>, and
if necessary include this debug output with any query.
OUT
;
$out;
}
sub MailErrors {
my $self = shift;
# email during register cleanup so the user doesn't have
# to wait, and possible cancel the mail by pressing "STOP"
$self->Log("registering error mail to $self->{mail_errors_to} for cleanup phase");
my $body_ref;
eval {
# there was a "use strict" + warn error while compiling this template
local $^W = 0;
$body_ref = $self->Response->TrapInclude('Share::CORE/MailErrors.inc',
COMPILE_ERROR => $self->PrettyErrorHelper
);
};
if($@) {
$self->Error("error creating error mail in MailErrors(): $@");
return;
}
my($subject,$body);
if($$body_ref =~ /^\s+Subject:\s*(.*?)\s*\n\s*(.*)$/is) {
($subject,$body) = ($1,$2);
} else {
($subject,$body) = ('Apache::ASP::Error', $$body_ref);
}
$self->{Server}->RegisterCleanup
(
sub {
for(1..3) {
my $success =
$self->SendMail
({
To => $self->{mail_errors_to},
From => &config($self, 'MailFrom') || $self->{mail_errors_to},
Subject => $subject,
Body => $body,
'Content-Type' => 'text/html',
});
if($success) {
last;
} else {
$self->Error("can't send errors mail to $self->{mail_errors_to}");
}
}
});
}
sub MailAlert {
my $self = shift;
unless($self->{mail_alert_period}) {
$self->{mail_alert_period} = &config($self, 'MailAlertPeriod', undef, 20);
}
# if we have the internal database defined, check last time the alert was
# sent, and if the alert period is up, send again
if(defined $self->{Internal}) {
my $time = time;
if(defined $self->{Internal}{mail_alert_time}) {
my $alert_in = $self->{Internal}{mail_alert_time} + $self->{mail_alert_period} * 60 - $time;
if($alert_in <= 0) {
$self->{Internal}{mail_alert_time} = $time;
} else {
# not time to send an alert again
$self->Debug("will alert again in $alert_in seconds");
return 1;
}
} else {
$self->{Internal}{mail_alert_time} = $time;
}
} else {
$self->Log("mail alerts will be sent every time. turn NoState off so that ".
"alerts can be sent only every $self->{mail_alert_period} minutes");
}
my $host = '';
if($self->LoadModules('MailAlert', 'Net::Domain')) {
$host = Net::Domain::hostname();
}
# email during register cleanup so the user doesn't have
# to wait, and possible cancel the mail by pressing "STOP"
$self->Log("registering alert mail to $self->{mail_alert_to} for cleanup phase");
$self->{Server}->RegisterCleanup
(
sub {
for(1..3) {
my $success =
$self->SendMail({
To => $self->{mail_alert_to},
From => &config($self, 'MailFrom', undef, $self->{mail_alert_to}),
Subject => join('-', 'ASP-ALERT', $host),
Body => "$self->{global}-$ENV{SCRIPT_NAME}",
});
if($success) {
last;
} else {
$self->Error("can't send alert mail to $self->{mail_alert_to}");
}
}
});
}
1;
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