Question

我是新手，我希望我能够正确地解释我的问题...... 我有一个html表单，它采用文件名和位置，cgi脚本处理此输入。文件将是这样的：file.ext和location将像/ some / folder / 我的问题是，当我尝试解析查询字符串时，＆amp;和/在字符串中转换为amp;和％2F，当我试图打印参数时，它不起作用...... 这是输出：

testjarName=some.jar&loc=some%2Ffolder&host=r9_7079&action=PatchjarName
some.jar some.jar 
amp;loc
some some 
amp;host
r9_7079 r9_7079 
amp;action
Patch Patch 
FILE IS some.jar and LOCAITON IS
file is some.jar
location some
machine is r9_7079
action is Patch
You typed:

有人可以帮忙吗？我也尝试了param（）调用，但没有帮助。表格输入法是GET 这是我正在使用的脚本：

#!/usr/local/bin/perl
use CGI qw(:standard);
#print header;
#print start_html('A Simple Example'),
$my_input = $ENV{QUERY_STRING};
print "Content-type: text/html\n\n";
print "";
print "<html><head></title>test</title></head><body>";
print "$ENV{QUERY_STRING}";
@fv_pairs = split /\&/ , $my_input;
foreach $pair (@fv_pairs) {
        if($pair=~m/([^=]+)=(.*)/) {
                $field = $1;
                print "$field";
                print "<br>";
                $value = $2;
                print "$value " ;
                $value =~ s/\+/ /g;
                print "$value " ;
                print "<br>";
                $value =~ s/%([\dA-Fa-f]{2})/pack("C", hex($1))/eg;
                $INPUT{$field}=$value;
        }
}
print "<br><hr>"; print "FILE IS  $INPUT{jarName} and LOCAITON IS  $INPUT{loc}";
if (param()) {
print "<hr>";
    print
        "file is ",em(param('jarName')),
        p,
        "location ",em(join(", ",param('loc'))),
        p,
        "machine is  ",em(param('host')),
        p,
        "action is ",em(param('action')),
        hr;
print "You typed: " . $input{'loc'} . "\n";


}

print "</body></html>";
#print end_html;

请帮忙。提前谢谢。

Answer 1

使用HTML :: Entities对输入字符串进行编码/解码。（How can I decode HTML entities?）

Answer 2

param将分解查询字符串并为您解码HTML字符：

perl -e 'use CGI qw(:standard);
         print param("loc");
' 'testjarName=some.jar&loc=some%2Ffolder&host=r9_7079&action=PatchjarName'

输出：

some/folder

Perl：在cgi脚本中解析包含反斜杠的query_string

2 个答案: