CentOS下Nginx支持CGI

[root@mail src]# wget http://www.cpan.org/modules/by-module/FCGI/FCGI-0.73.tar.gz  
 
[root@mail src]# wget  [root@mail src]# wget http://search.cpan.org/CPAN/authors/id/G/GB/GBJK/FCGI-ProcManager-0.19.tar.gz  
 
[root@mail src]# tar –zxvf FCGI-0.73.tar.gz  
 
[root@mail src]# cd FCGI-0.73  
 
[root@mail FCGI-0.73]# perl Makefile.PL  
 
[root@mail FCGI-0.73]# make && make install  
 
[root@mail FCGI-0.73]# cd ..  
 
[root@mail src]# tar –zxvf FCGI-ProcManager-0.19.tar.gz  
 
[root@mail FCGI-ProcManager-0.19]# perl Makefile.PL  
 
[root@mail FCGI-ProcManager-0.19]# make && make install

接下来需要添加一个脚本,我也是从网上开来的,下面给大家转载来一篇

下面的转载来的,大家看一下

作者: Bluedata |
可以转载，转载时务必以超链接形式标明文章原始出处和作者信息及版权声明

网址: http://bluedata.org/2009/08/21/nginx-cgi/

用 perl 写一个 daemon 程序来处理 cgi 文件：

vi /usr/local/bin/cgiwrap-fcgi.pl

#!/usr/bin/perl -w  
use FCGI;  
use Socket;  
use FCGI::ProcManager;  
sub shutdown { FCGI::CloseSocket($socket); exit; }  
sub restart { FCGI::CloseSocket($socket); &main; }  
use sigtrap 'handler', \&shutdown, 'normal-signals';  
use sigtrap 'handler', \&restart,  'HUP';  
require 'syscall.ph';  
use POSIX qw(setsid);  
#&daemonize; we don't daemonize when running under runsv  
#this keeps the program alive or something after exec'ing perl scripts  
END() { }  
BEGIN() { }  
{  
no warnings;  
*CORE::GLOBAL::exit = sub { die "fakeexit\nrc=" . shift() . "\n"; };  
};  
eval q{exit};  
if ($@) {  
exit unless $@ =~ /^fakeexit/;  
}  
&main;  
sub daemonize() {  
chdir '/' or die "Can't chdir to /: $!";  
defined( my $pid = fork ) or die "Can't fork: $!";  
exit if $pid;  
setsid() or die "Can't start a new session: $!";  
umask 0;  
}  
sub main {  
#$socket = FCGI::OpenSocket( "127.0.0.1:8999", 10 ); #use IP sockets  
#$socket = FCGI::OpenSocket( "/var/run/nginx/perl_cgi-dispatch.sock", 10 ); #use UNIX sockets - user running this script must have w access to the 'nginx' folder!!  
#foreach $item (keys %ENV) { delete $ENV{$item}; }  
$proc_manager = FCGI::ProcManager->new( {n_processes => 5} );  
$socket = FCGI::OpenSocket( "127.0.0.1:8999", 10 )  
        ; #use UNIX sockets - user running this script must have w access to the 'nginx' folder!!  
$request =  
FCGI::Request( \*STDIN, \*STDOUT, \*STDERR, \%req_params, $socket,  
&FCGI::FAIL_ACCEPT_ON_INTR );  
$proc_manager->pm_manage();  
if ($request) { request_loop() }  
FCGI::CloseSocket($socket);  
}  
sub request_loop {  
while ( $request->Accept() >= 0 ) {  
$proc_manager->pm_pre_dispatch();  
#processing any STDIN input from WebServer (for CGI-POST actions)  
$stdin_passthrough = '';  
{ no warnings; $req_len = 0 + $req_params{'CONTENT_LENGTH'}; };  
if ( ( $req_params{'REQUEST_METHOD'} eq 'POST' ) && ( $req_len != 0 ) )  
{  
my $bytes_read = 0;  
while ( $bytes_read < $req_len ) {  
my $data = '';  
my $bytes = read( STDIN, $data, ( $req_len - $bytes_read ) );  
last if ( $bytes == 0 || !defined($bytes) );  
$stdin_passthrough .= $data;  
$bytes_read += $bytes;  
}  
}  
#running the cgi app  
if (  
( -x $req_params{SCRIPT_FILENAME} ) &&    #can I execute this?  
( -s $req_params{SCRIPT_FILENAME} ) &&    #Is this file empty?  
( -r $req_params{SCRIPT_FILENAME} ) #can I read this file?  
)  
{  
pipe( CHILD_RD,   PARENT_WR );  
pipe( PARENT_ERR, CHILD_ERR );  
my $pid = open( CHILD_O, "-|" );  
unless ( defined($pid) ) {  
print("Content-type: text/plain\r\n\r\n");  
print  
"Error: CGI app returned no output - Executing $req_params{SCRIPT_FILENAME} failed !\n";  
next;  
}  
$oldfh = select(PARENT_ERR);  
            $|     = 1;  
select(CHILD_O);  
            $| = 1;  
select($oldfh);  
if ( $pid > 0 ) {  
close(CHILD_RD);  
close(CHILD_ERR);  
print PARENT_WR $stdin_passthrough;  
close(PARENT_WR);  
$rin = $rout = $ein = $eout = '';  
vec( $rin, fileno(CHILD_O),    1 ) = 1;  
vec( $rin, fileno(PARENT_ERR), 1 ) = 1;  
$ein    = $rin;  
$nfound = 0;  
while ( $nfound =  
select( $rout = $rin, undef, $ein = $eout, 10 ) )  
{  
die "$!" unless $nfound != -1;  
$r1 = vec( $rout, fileno(PARENT_ERR), 1 ) == 1;  
$r2 = vec( $rout, fileno(CHILD_O),    1 ) == 1;  
$e1 = vec( $eout, fileno(PARENT_ERR), 1 ) == 1;  
$e2 = vec( $eout, fileno(CHILD_O),    1 ) == 1;  
if ($r1) {  
while ( $bytes = read( PARENT_ERR, $errbytes, 4096 ) ) {  
print STDERR $errbytes;  
}  
if ($!) {  
$err = $!;  
die $!;  
vec( $rin, fileno(PARENT_ERR), 1 ) = 0  
unless ( $err == EINTR or $err == EAGAIN );  
}  
}  
if ($r2) {  
while ( $bytes = read( CHILD_O, $s, 4096 ) ) {  
print $s;  
}  
if ( !defined($bytes) ) {  
$err = $!;  
die $!;  
vec( $rin, fileno(CHILD_O), 1 ) = 0  
unless ( $err == EINTR or $err == EAGAIN );  
}  
}  
last if ( $e1 || $e2 );  
}  
close CHILD_RD;  
close PARENT_ERR;  
waitpid( $pid, 0 );  
} else {  
foreach $key ( keys %req_params ) {  
$ENV{$key} = $req_params{$key};  
}  
# cd to the script's local directory  
if ( $req_params{SCRIPT_FILENAME} =~ /^(.*)\/[^\/]+$/ ) {  
chdir $1;  
}  
close(PARENT_WR);  
#close(PARENT_ERR);  
close(STDIN);  
close(STDERR);  
#fcntl(CHILD_RD, F_DUPFD, 0);  
syscall( &SYS_dup2, fileno(CHILD_RD),  0 );  
syscall( &SYS_dup2, fileno(CHILD_ERR), 2 );  
#open(STDIN, "<&CHILD_RD");  
exec( $req_params{SCRIPT_FILENAME} );  
die("exec failed");  
}  
} else {  
print("Content-type: text/plain\r\n\r\n");  
print  
"Error: No such CGI app - $req_params{SCRIPT_FILENAME} may not exist or is not executable by this process.\n";  
}  
}  
}

注意文件中的这两行：

#$socket = FCGI::OpenSocket( "127.0.0.1:8999", 10 );

#$socket = FCGI::OpenSocket( "/var/run/nginx/perl_cgi-dispatch.sock", 10 );

这两行都表示监听来自 perl CGI 的请求。

其中 perl_cgi-dispatch.sock 表示使用 unix socket 响应 CGI 请求。

127.0.0.1:8999 表示使用 TCP/IP 协议响应请求。

需要使用哪种方式就在下面的 FCGI::OpenSocket 中填入相对应的内容。

启动：

chmod +x /usr/local/bin/cgiwrap-fcgi.pl

/usr/local/bin/cgiwrap-fcgi.pl > /dev/null 2>&1 &

配置 Nginx 的 location 处理 cgi 文件：

location ~ .*\.cgi$ {

fastcgi_pass 127.0.0.1:8999;

fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;

include fastcgi_params;

}

测试：

在 web 的根目录下创建一个 cgi 文件：

vi test.cgi

#!/usr/bin/perl

print "Content-type: text/html\n\n";

print "Hello, world.";

文件需要有可执行权限：

chmod +x test.cgi

访问 http://www.domain.com/test.cgi 看看有没有输出。

本文出自 “cold night”
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