show.cgi

来自「Unix下基于Web的管理工具」· CGI 代码 · 共 54 行

#!/usr/local/bin/perl
# show.cgi
# Output some file for the browser

require './file-lib.pl';
&switch_acl_uid();
use POSIX;
$p = $ENV{'PATH_INFO'};
if ($p =~ /\.([^\.\/]+)$/) {
	$ext = $1;
	&get_miniserv_config(\%miniserv);
	open(MIME, $miniserv{'mimetypes'});
	while(<MIME>) {
		s/#.*//g;
		if (/(\S+)\s+(.*)/) {
			foreach $e (split(/\s+/, $2)) {
				if ($ext eq $e) {
					$type = $1;
					last;
					}
				}
			}
		}
	close(MIME);
	}
if (!$type) {
	# No idea .. use the 'file' command
	if (`file "$p"` =~ /text|script/) {
		$type = "text/plain";
		}
	else {
		$type = "application/octet-stream";
		}
	}

# Dump the file
if (!&can_access($p)) {
	print "Content-type: text/plain\n\n";
	print &text('view_eaccess', $p),"\n";
	}
elsif (!open(FILE, $p)) {
	print "Content-type: text/plain\n\n";
	print &text('view_eopen', $p, $!),"\n";
	}
else {
	@st = stat($p);
	print "Content-length: $st[7]\n";
	print "Content-type: $type\n\n";
	while(read(FILE, $buf, 1024)) {
		print $buf;
		}
	close(FILE);
	}