Question

我的所有应用程序都是用PHP编写的，第1栏脚本恰好创建了一个md5哈希，后来通过PHP脚本使用。问题是他们不匹配。

PERL：

#$linkTrue = 'http://www.themobilemakeover.co.uk/mobile-makeover-appointment-booking-signup.php'
md5_hex($linkTrue);

出于测试目的，我在PHP中做到了这一点：

echo md5("http://www.themobilemakeover.co.uk/mobile-makeover-appointment-booking-signup.php");

都返回不同的值。有谁知道这是为什么？

修改整个PHP SCRIPT

<?php

echo md5("http://www.themobilemakeover.co.uk/mobile-makeover-appointment-booking-signup.php");

?>

整个抄本（抱歉很长）

#!/usr/bin/perl
use strict;
use warnings;
use LWP::Simple;
require LWP::UserAgent;
sub trim($);
use DBI;
use Net::FTP;
use Digest::MD5 qw(md5 md5_hex md5_base64);

print "Content-type: text/html\n\n";
print "<html>\n<head>\n</head><body>\n";

my $ua = LWP::UserAgent->new;
$ua->timeout(10);
$ua->env_proxy;
$ua->max_redirect(0);

#my %get = ();
#for (split /\&/, $ENV{'QUERY_STRING'}) { my ($key, $val) = split /=/; $val =~ s/\+/ /g; $val =~ s/%([0-9a-fA-F]{2})/chr(hex($1))/ge; $get{$key} = $val; }
#my %post = ();
#for (split /\&/, <STDIN>) { my ($key, $val) = split /=/; $val =~ s/\+/ /g; $val =~ s/%([0-9a-fA-F]{2})/chr(hex($1))/ge; $post{$key} = $val; }
my %get = ('findAllPages' => 'true' );
my %post = ('ki' => '############################' );


sub trim($){
   my $string = shift;
   $string =~ s/^\s+//;
   $string =~ s/\s+$//;
   return $string;
}
sub extention {
   my($data) = @_;
   if( substr( trim($data), -1) eq "/" ){
      my @extArray = ('.html', '.php', '.htm', '.asp', '.shtml', '.aspx');
      foreach(@extArray){
         my $ext = $_;
         my $testResponse = $ua->get('http://' . trim($data . "index" . $ext));
         my $testResponseCode = $testResponse->code;
         if( $testResponseCode == 200 || $testResponseCode == 301 || $testResponseCode == 302 ){
            return trim($data . "index" . $ext);
            last;
         }
      }
   }else{
      return $data;
   }
}
if( defined( $get{findAllPages} ) && defined( $post{ki} ) ){
   my ($database, $hostname, $port, $password, $user );
   $database = "##########";
   $hostname = "############";
   $password = "##########";
   $user = "#########";
   my $KI = $post{ki};
   # connect to the database
   my $dsn = "DBI:mysql:database=$database;host=$hostname;";
   my $dbh = DBI->connect($dsn, $user, $password);
   my $sth = $dbh->prepare("SELECT * FROM accounts WHERE KI = '$KI' ") or die "Could not select from table" . $DBI::errstr;
   $sth->execute(); 
   if( $sth->rows != 0 ) {
      my $ref = $sth->fetchrow_hashref();
      my $domain = $ref->{website};
      my $DB_username = $ref->{db_name};
      my $DB_password = $ref->{db_pass};
      my $DB_ftpuser = $ref->{ftpuser};
      my $DB_ftppass = $ref->{ftppass};
      my $DB_ftpserver = $ref->{ftpserver};
      $sth->finish();
      $dbh->disconnect();

      chomp(my $url = trim($domain));
      # try and find  full path
      sub findFullPath {

         my($link, $landingPage) = @_;

         # strip ./ and / from beggining of string
         $link =~ s/^(?:(?:\/)|(?:\.\/))//g;

         # find out whether link is backtracing to previous folder
         if( $link =~ m/^\.\.\// ) { # link desination is back tracing

            if( $landingPage =~ m/(?:(?:\.html)|(?:\.php)|(?:\.htm)|(?:\.asp)|(?:\.shtml)|(?:\.aspx))$/g ) {
               # find destination folder from landing page
               my @folders = split( "/", $landingPage );    
               #find size of array
               my $foldersSize = scalar @folders;
               delete $folders[$foldersSize - 1];
               $foldersSize = scalar @folders;
               my @backFolders = ( $link =~ m/\.\.\//g ); # get rid of ../
               my $amountOfBackFolders = scalar @backFolders; # find how many folders back
               for( my $x=0; $x < $amountOfBackFolders; $x++ ) {
                  my $numberToDelete = ($foldersSize - 1) - $x;
                  delete $folders[$numberToDelete];
               }
               $landingPage = join( "/", @folders );
               $link =~ s/\.\.\///g;
               return $landingPage . "/" . $link . "\n";
            } elsif( $landingPage =~ m/(?:\/)$/g ) {
               my @folders = split( "/", $landingPage );    
               #find size of array
               my $foldersSize = scalar @folders;
               delete $folders[$foldersSize - 1];
               $foldersSize = scalar @folders;
               my @backFolders = ( $link =~ m/\.\.\//g ); # get rid of ../
               my $amountOfBackFolders = scalar @backFolders; # find how many folders back
               for( my $x=0; $x < $amountOfBackFolders; $x++ ) {
                  my $numberToDelete = ($foldersSize) - $x;
                  delete $folders[$numberToDelete];
               }
               $landingPage = join( "/", @folders );
               $link =~ s/\.\.\///g;
               return $landingPage . "/" . $link . "\n";
            } else {

            }

         }else{
            if( substr( $landingPage, -1) eq "/" ){
               return $landingPage . $link;
            }else{
               my @splitLandingPage = split( "/", $landingPage );
               my $amountSplit = scalar @splitLandingPage;
               my $toDelete = $amountSplit - 1;
               my $lastEntry = $splitLandingPage[$toDelete];
               if( $lastEntry =~ m/(?:(?:com)|(?:co\.uk)|(?:net)|(?:org)|(?:cc)|(?:tv)|(?:info)|(?:org\.uk)|(?:me\.uk)|(?:biz)|(?:name)|(?:eu)|(?:uk\.com)|(?:eu\.com)|(?:gb\.com)|(?:gb\.net)|(?:uk\.net)|(?:me)|(?:mobi))$/g ) {
                  return join( "/", @splitLandingPage ) . "/" . $link . "\n";
               }else{
                  delete $splitLandingPage[$toDelete];
                  return join( "/", @splitLandingPage ) . "/" . $link . "\n";
               }
            }
         }
      }

      # get HTTP details
      my $response = $ua->get('http://' . trim($url));
      my $responseCode = $response->code;
      my $responseLocation = $response->header( 'Location' );

      # contintue only if status code is 200 or 301
      if( $responseCode != 200 && $responseCode != 301 && $responseCode != 302 ){
          print "<span class=\"red\"> error: http://" . trim($url) . "Domain name invalid, please use differnet domain name: http status - " . $responseCode . "</span><br />\n";
          die;
      }

      # change url if domain status eq 301
      if( $responseCode == 301 || $responseCode == 302 ){
         if($response->header( 'Location' ) =~ m/^http:\/\/www\./g ) {
            $url = substr( $response->header( 'Location' ), 11 );
         }elsif($response->header( 'Location' ) =~ m/^http:\/\//g ) {
            $url = substr( $response->header( 'Location' ), 7 );
         }else{
            $url = findFullPath($response->header( 'Location' ), $url);
         }
      }

      my @pagesArray = ($url);
      my @pagesScannedArray;
      my @mainPagesArray;
      my @pagesNotScanned;
      my $z = 0;

      #print "\nGethering all valid links from " . $domain . "...\n\n";

      while ( @pagesArray && $z < 100 ) {
         # get the next in queue for proccessing
         my $page = trim(shift @pagesArray);
         if( ! grep {$_ eq trim($page)} @pagesNotScanned ) {
            # check page http status
            $response = $ua->get("http://" . trim($page));
            $responseCode = $response->code;
            if( $responseCode == 200 || $responseCode == 301 || $responseCode == 302 ){
               # change page url if 301 redirect
               if( $responseCode == 301 || $responseCode == 302 ){
                  if($response->header( 'Location' ) =~ m/^http:\/\/www\./g ) {
                     $page = substr( $response->header( 'Location' ), 11 );
                  }elsif($response->header( 'Location' ) =~ m/^http:\/\//g ) {
                     $page = substr( $response->header( 'Location' ), 7 );
                  }else{
                     $page = findFullPath($response->header( 'Location' ), $url);
                  }
               }
               # connect to page and get contents
               if( my $pageData = get "http://" . trim($page) ) {
                  # get all links on page
                  my @pageLinksArray = ( $pageData =~ m/href=["']([^"']*)["']/g );
                  # foreach link on the page
                  foreach( @pageLinksArray ) {
                      my $link = trim($_);
                     # remove url if located on same domain
                     $link =~ s/(?:http:\/\/)?(?:www\.)?$url//g;
                     # if link is format we are looking for
                     if( $link =~ m/(?:(?:\.html)|(?:\.php)|(?:\.htm)|(?:\.asp)|(?:\.shtml)|(?:\.aspx)|(?:\/))$/ ) {
                        # if link is outbound
                        if( $link =~ m/^http:\/\//g ) {
                           if( ! grep {$_ eq trim($link)} @pagesNotScanned ) {
                              if( ! grep {$_ eq trim($page)} @mainPagesArray ) {
                                 push ( @pagesNotScanned, trim($link) );
                              }
                           }
                        }else{
                           # find full path for link
                           my $newUrl = &findFullPath(trim($link), trim($page));
                           # if link has not already been claimed to be a main page
                           if( ! grep {$_ eq trim($newUrl)} @mainPagesArray ) {
                              # if link is not already in queue
                              if( ! grep {$_ eq trim($newUrl)} @pagesArray ) {
                                 push ( @pagesArray, trim($newUrl) );
                              }
                           }
                        }
                     }
                  }
                  if( ! grep {$_ eq trim($page)} @mainPagesArray ) {
                     push ( @mainPagesArray, trim($page) );
                  }
               }
            }else{
               if( ! grep {$_ eq trim($page)} @pagesNotScanned ) {
                  if( ! grep {$_ eq trim($page)} @mainPagesArray ) {
                     push ( @pagesNotScanned, trim($page) );
                  }
               }
            }
         }
         $z++;
      }

      if( scalar @mainPagesArray != 0 ) {
         my ($database, $hostname, $port, $password, $user );
         $database = $DB_username;
         $hostname = "###########";
         $password = $DB_password;
         $user = $DB_username;

         # connect to the database
         my $dsn = "DBI:mysql:database=$database;host=$hostname;";
         my $dbh = DBI->connect($dsn, $user, $password) or die " error: Couldn't connect to database: " . DBI->errstr;

        print "\nTesting links' extentions from " . $domain . "...\n\n";

        my $root;
        my $ftp = Net::FTP->new($DB_ftpserver, Debug => 0) or die "Cannot connect to some.host.name: $@";
        $ftp->login($DB_ftpuser, $DB_ftppass) or die "Cannot login ", $ftp->message;
        my @list = $ftp->dir;
        if( scalar @list != 0 ) {
            foreach( @list ){
                if( $_ =~ m/((?:www)|(?:public_html)|(?:htdocs))$/g ){
                    $root = $1;
                    last;
                }
            }
        }
        if( $root eq "" ) {
            print "error: could not identify root directory.<br />\n";
            die;
        }

        foreach( @mainPagesArray ) {
            my $webpage = &extention(trim($_));
            if( trim($webpage) ne trim($domain) ){
                my $webpageQuote = $dbh->quote("http://www." . $webpage);
                my $sth = $dbh->prepare("SELECT * FROM page_names WHERE linkTrue = $webpageQuote ") or die "Could not select from table" . $DBI::errstr;
                $sth->execute(); 
                if( $sth->rows == 0 ) {
                    print "http://www." . $webpage . "<br />\n";
                    my $linkTrue = $dbh->quote("http://www." . $webpage);
                    my $string = ($webpage =~ s/^$domain//g);
                    my $linkFromRoot = $dbh->quote($root . $webpage);
                    my $page_name = $dbh->quote("");
                    my $table_name = $dbh->quote(md5_hex(trim($linkTrue)));
                    my $navigation = $dbh->quote("");
                    my $location = $dbh->quote("");
                    $dbh->do("INSERT INTO page_names (linkFromRoot, linkTrue, page_name, table_name, navigation, location) VALUES ( $linkFromRoot, $linkTrue, $page_name, $table_name, $navigation, $location )") or die " error: Couldn't connect to database: " . DBI->errstr;
                }
            }
         }
      }else{
         print "<span class=\"red\"> error: No pages where found. This CMS is designed for pre-existing sites. Please contact support for more information.</span><br />\n";
      }
   }else{
      print "<span class=\"red\"> error: input key incorrerct.</span><br />\n";
   }
}else{
   print "<span class=\"red\"> error: This area is forbidden please locate back to www.plugnplaycms.co.uk</span><br />\n";
}

print "</body>\n</html>";

我相信它的第274行。代码可能很乱，但它是我的第一个用perl编写的脚本，只用了一周。

我得到了它。 $ dbh-＆gt; quote（）在值周围添加单引号。

Answer 1

当我尝试时，两个程序都返回a4cbeef10b3c6d44ca30d96370619eef

我觉得你没有给我们全面的了解。向我们展示导致这一点的代码。特别是，检查换行符。你在perl脚本中使用了chomp吗？

亲自尝试。这是我使用的完整的PHP脚本：

<?php
echo md5("http://www.themobilemakeover.co.uk/mobile-makeover-appointment-booking-signup.php");
?>

这是我用过的完整的perl脚本：

#!/usr/bin/perl
use Digest::Perl::MD5 'md5_hex';

$linkTrue = 'http://www.themobilemakeover.co.uk/mobile-makeover-appointment-booking-signup.php';
print md5_hex($linkTrue);

编辑：

如果两个脚本没有为md5返回该值，那该怎么办？那是一个有bug的人。记录您传递给md5的值（使用'[before before和']'后检测额外的空格）。这个值是否符合您的期望？

编辑2：

看起来你找到了，对吗？这是单引号。这样：

print md5_hex("'http://www.themobilemakeover.co.uk/mobile-makeover-appointment-booking-signup.php'");

注意额外的报价。上面这行给了我：486c944b10ef539aa7ba4bfe607861f2

比较PERL md5（）和PHP md5（）

1 个答案: