+# mod_perl_init($r) Initialization for mod_perl
+# mod_perl_print Faster printing for mod_perl
+# sendheaders Send headers
+# source($path, $level, $linespec) Read and parse .plp files
+# start Start the initialized PLP script
+
+# The _init subs do the following:
+# Set $PLP::code to the initial code
+# Set $ENV{PLP_*} and makes PATH_INFO if needed
+# Change the CWD
+
+# This gets referenced as the initial $PLP::ERROR
+sub _default_error {
+ my ($plain, $html) = @_;
+ print qq{<table border=1 class="PLPerror"><tr><td>},
+ qq{<span><b>Debug information:</b><BR>$html</td></tr></table>};
+}
+
+# CGI initializer: parses PATH_TRANSLATED
+sub cgi_init {
+
+ $PLP::print = 'print';
+
+ my $path = $ENV{PATH_TRANSLATED};
+ $ENV{PLP_NAME} = $ENV{PATH_INFO};
+ my $path_info;
+ while (not -f $path) {
+ if (not $path =~ s/(\/+[^\/]*)$//) {
+ print STDERR "PLP: Not found: $ENV{PATH_TRANSLATED} ($ENV{REQUEST_URI})\n";
+ PLP::error(undef, 404);
+ exit;
+ }
+ my $pi = $1;
+ $ENV{PLP_NAME} =~ s/\Q$pi\E$//;
+ $path_info = $pi . $path_info;
+ }
+
+ if (not -r $path) {
+ print STDERR "PLP: Can't read: $ENV{PATH_TRANSLATED} ($ENV{REQUEST_URI})\n";
+ PLP::error(undef, 403);
+ exit;
+ }
+
+ delete @ENV{
+ qw(PATH_TRANSLATED SCRIPT_NAME SCRIPT_FILENAME PATH_INFO),
+ grep /^REDIRECT_/, keys %ENV
+ };
+
+ $ENV{PATH_INFO} = $path_info if defined $path_info;
+ $ENV{PLP_FILENAME} = $path;
+ my ($file, $dir) = File::Basename::fileparse($path);
+ chdir $dir;
+
+ $PLP::code = PLP::source($file, 0, undef, $path);
+}
+
+# This cleans up from previous requests, and sets the default $PLP::DEBUG
+sub clean {
+ @PLP::END = ();
+ $PLP::code = '';
+ $PLP::sentheaders = 0;
+ $PLP::DEBUG = 1;
+ $PLP::print = '';
+ $PLP::r = undef;
+ delete @ENV{ grep /^PLP_/, keys %ENV };
+}
+
+# Handles errors, uses subref $PLP::ERROR (default: \&_default_error)
+sub error {
+ my ($error, $type) = @_;
+ if (not defined $type or $type < 100) {
+ return undef unless $PLP::DEBUG & 1;
+ my $plain = $error;
+ (my $html = $plain) =~ s/([<&>])/'&#' . ord($1) . ';'/ge;
+ PLP::sendheaders() unless $PLP::sentheaders;
+ $PLP::ERROR->($plain, $html);
+ } else {
+ select STDOUT;
+ my ($short, $long) = @{
+ +{
+ 404 => [
+ 'Not Found',
+ "The requested URL $ENV{REQUEST_URI} was not found " .
+ "on this server."
+ ],
+ 403 => [
+ 'Forbidden',
+ "You don't have permission to access $ENV{REQUEST_URI} " .
+ "on this server."
+ ],
+ }->{$type}
+ };
+ print "Status: $type\nContent-Type: text/html\n\n",
+ qq{<!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML 2.0//EN">\n<html>},
+ "<head>\n<title>$type $short</title>\n</head></body>\n<h1>$short",
+ "</h1>\n$long<p>\n<hr>\n$ENV{SERVER_SIGNATURE}</body></html>";
+ }
+}
+
+# This is run by the CGI script. (#!perl \n use PLP; PLP::everything;)
+sub everything {
+ clean();
+ cgi_init();
+ start();
+}
+
+# This is the mod_perl handler.
+sub handler {
+ require Apache::Constants;
+ clean();
+ if (my $ret = mod_perl_init($_[0])) {
+ return $ret;
+ }
+ #S start($_[0]);
+ start();
+ no strict 'subs';
+ return Apache::Constants::OK();
+}