为了Awstats给Nginx添加FastCGI方式的Perl支持
有个应用(awstats)需要Perl脚本支持，但是用的Nginx服务器，对Perl支持不好，于是通过FastCGI方式来使用Perl。
首先安装Perl的FCGI模块
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wget http://www.cpan.org/modules/by-module/FCGI/FCGI-0.67.tar.gz
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tar -zxvf FCGI-0.67.tar.gz
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cd FCGI-0.67
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perl Makefile.PL
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make && make install
还可以使用如下方法安装：
perl -MCPAN -e 'install FCGI'
安装FCGI-ProcManager
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wget http://search.cpan.org/CPAN/authors/id/G/GB/GBJK/FCGI-ProcManager-0.18.tar.gz
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tar -xzxf FCGI-ProcManager-0.18.tar.gz
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cd FCGI-ProcManager-0.18
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perl Makefile.PL
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make
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make install
Perl的FastCGI启动脚本
参考这篇文章 http://bbs.chinaunix.net/archiver/?tid-1224968.html
vi fcgi_perl
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#!/usr/bin/perl -w
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use FCGI;
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use Socket;
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use FCGI::ProcManager;
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sub shutdown { FCGI::CloseSocket($socket); exit; }
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sub restart { FCGI::CloseSocket($socket); &main; }
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use sigtrap 'handler', \&shutdown, 'normal-signals';
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use sigtrap 'handler', \&restart, 'HUP';
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require 'syscall.ph';
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use POSIX qw(setsid);
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#&daemonize; we don't daemonize when running under runsv
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#this keeps the program alive or something after exec'ing perl scripts
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END() { }
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BEGIN() { }
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{
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no warnings;
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*CORE::GLOBAL::exit = sub { die "fakeexit\nrc=" . shift() . "\n"; };
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};
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eval q{exit};
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if ($@) {
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exit unless $@ =~ /^fakeexit/;
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}
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&main;
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sub daemonize() {
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chdir '/' or die "Can't chdir to /: $!";
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defined( my $pid = fork ) or die "Can't fork: $!";
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exit if $pid;
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setsid() or die "Can't start a new session: $!";
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umask 0;
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}
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sub main {
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#如果使用 IP sockets
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#$socket = FCGI::OpenSocket( "127.0.0.1:8999", 10 );
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#如果使用 UNIX sockets
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#$socket = FCGI::OpenSocket( "/var/run/perl_cgi-dispatch.sock", 10 );
-
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#foreach $item (keys %ENV) { delete $ENV{$item}; }
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#设置fastcgi进程数，默认四个
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my $n_processes = $ENV{FCGI_NPROCESSES} || 4;
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$proc_manager = FCGI::ProcManager->new( {n_processes => $n_processes} );
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#使用unix socket
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$socket = FCGI::OpenSocket( "$ENV{FCGI_SOCKET_PATH}", 10 );
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#设置Socket权限
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chmod 0777, $ENV{FCGI_SOCKET_PATH};
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; #use UNIX sockets – user running this script must have w access to the 'nginx' folder!!
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$request =
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FCGI::Request( \*STDIN, \*STDOUT, \*STDERR, \%req_params, $socket,
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&FCGI::FAIL_ACCEPT_ON_INTR );
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$proc_manager->pm_manage();
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if ($request) { request_loop() }
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FCGI::CloseSocket($socket);
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}
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sub request_loop {
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while ( $request->Accept() >= 0 ) {
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$proc_manager->pm_pre_dispatch();
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#processing any STDIN input from WebServer (for CGI-POST actions)
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$stdin_passthrough = '';
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{ no warnings; $req_len = 0 + $req_params{'CONTENT_LENGTH'}; };
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if ( ( $req_params{'REQUEST_METHOD'} eq 'POST' ) && ( $req_len != 0 ) )
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{
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my $bytes_read = 0;
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while ( $bytes_read < $req_len ) {
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my $data = '';
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my $bytes = read( STDIN, $data, ( $req_len – $bytes_read ) );
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last if ( $bytes == 0 || !defined($bytes) );
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$stdin_passthrough .= $data;
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$bytes_read += $bytes;
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}
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}
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#running the cgi app
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if (
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( -x $req_params{SCRIPT_FILENAME} ) && #can I execute this?
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( -s $req_params{SCRIPT_FILENAME} ) && #Is this file empty?
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( -r $req_params{SCRIPT_FILENAME} ) #can I read this file?
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)
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{
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pipe( CHILD_RD, PARENT_WR );
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pipe( PARENT_ERR, CHILD_ERR );
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my $pid = open( CHILD_O, "-|" );
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unless ( defined($pid) ) {
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print("Content-type: text/plain\r\n\r\n");
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print
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"Error: CGI app returned no output – Executing $req_params{SCRIPT_FILENAME} failed !\n";
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next;
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}
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$oldfh = select(PARENT_ERR);
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$| = 1;
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select(CHILD_O);
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$| = 1;
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select($oldfh);
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if ( $pid > 0 ) {
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close(CHILD_RD);
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close(CHILD_ERR);
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print PARENT_WR $stdin_passthrough;
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close(PARENT_WR);
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$rin = $rout = $ein = $eout = '';
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vec( $rin, fileno(CHILD_O), 1 ) = 1;
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vec( $rin, fileno(PARENT_ERR), 1 ) = 1;
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$ein = $rin;
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$nfound = 0;
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while ( $nfound =
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select( $rout = $rin, undef, $ein = $eout, 10 ) )
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{
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die "$!" unless $nfound != -1;
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$r1 = vec( $rout, fileno(PARENT_ERR), 1 ) == 1;
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$r2 = vec( $rout, fileno(CHILD_O), 1 ) == 1;
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$e1 = vec( $eout, fileno(PARENT_ERR), 1 ) == 1;
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$e2 = vec( $eout, fileno(CHILD_O), 1 ) == 1;
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if ($r1) {
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while ( $bytes = read( PARENT_ERR, $errbytes, 4096 ) ) {
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print STDERR $errbytes;
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}
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if ($!) {
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$err = $!;
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die $!;
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vec( $rin, fileno(PARENT_ERR), 1 ) = 0
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unless ( $err == EINTR or $err == EAGAIN );
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}
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}
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if ($r2) {
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while ( $bytes = read( CHILD_O, $s, 4096 ) ) {
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print $s;
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}
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if ( !defined($bytes) ) {
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$err = $!;
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die $!;
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vec( $rin, fileno(CHILD_O), 1 ) = 0
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unless ( $err == EINTR or $err == EAGAIN );
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}
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}
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last if ( $e1 || $e2 );
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}
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close CHILD_RD;
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close PARENT_ERR;
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waitpid( $pid, 0 );
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} else {
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foreach $key ( keys %req_params ) {
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$ENV{$key} = $req_params{$key};
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}
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# cd to the script's local directory
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if ( $req_params{SCRIPT_FILENAME} =~ /^(.*)\/[^\/]+$/ ) {
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chdir $1;
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}
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close(PARENT_WR);
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#close(PARENT_ERR);
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close(STDIN);
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close(STDERR);
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#fcntl(CHILD_RD, F_DUPFD, 0);
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syscall( &SYS_dup2, fileno(CHILD_RD), 0 );
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syscall( &SYS_dup2, fileno(CHILD_ERR), 2 );
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#open(STDIN, "<&CHILD_RD");
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exec( $req_params{SCRIPT_FILENAME} );
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die("exec failed");
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}
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} else {
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print("Content-type: text/plain\r\n\r\n");
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print
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"Error: No such CGI app – $req_params{SCRIPT_FILENAME} may not exist or is not executable by this process.\n";
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}
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}
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}
再设置启动的脚本
vi startfcgiperl
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export FCGI_SOCKET_PATH="/tmp/perl_fcgi.socket"
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export FCGI_NPROCESSES=4
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./fcgi_perl &
为Nginx添加FastCGI的Perl支持
编辑 nginx.conf 脚本，添加如下内容
location ~* .*\.pl$
{
include awstats.conf;
}
location /awstatsicon/
{
alias /var/www/awstats-6.8/wwwroot/icon/;
}
vi awstats.conf
fastcgi_pass unix:/tmp/perl_fcgi.socket; fastcgi_index awstats.pl; #fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name; #fastcgi_param SCRIPT_FILENAME /var/www/awstats-6.8/wwwroot/cgi-bin$fastcgi_script_name; fastcgi_param SCRIPT_FILENAME /var/www/awstats-6.8/wwwroot/cgi-bin/awstats.pl; fastcgi_param QUERY_STRING $query_string; fastcgi_param REQUEST_METHOD $request_method; fastcgi_param CONTENT_TYPE $content_type; fastcgi_param CONTENT_LENGTH $content_length; fastcgi_param GATEWAY_INTERFACE CGI/1.1; fastcgi_param SERVER_SOFTWARE nginx; fastcgi_param SCRIPT_NAME $fastcgi_script_name; fastcgi_param REQUEST_URI $request_uri; fastcgi_param DOCUMENT_URI $document_uri; fastcgi_param DOCUMENT_ROOT $document_root; fastcgi_param SERVER_PROTOCOL $server_protocol; fastcgi_param REMOTE_ADDR $remote_addr; fastcgi_param REMOTE_PORT $remote_port; fastcgi_param SERVER_ADDR $server_addr; fastcgi_param SERVER_PORT $server_port; fastcgi_param SERVER_NAME $server_name; fastcgi_read_timeout 60;
配置Awstats
运行 /var/www/awstats-6.8/tools/awstats_configure.pl 设置好一些变量
mkdir -p /etc/awstats cp /var/www/awstats-6.8/wwwroot/awstats.model.conf /etc/awstats/awstats.my.site.com.conf
使用 vi /etc/awstats.my.site.com.conf 进行一些参数修改，设置icon目录，DirData数据存放目录，来源log日志文件路径等
使用 /var/www/awstats-6.8/tool/awstats_updateall.pl now -awstatsprog=/var/www/awstats-6.8/wwwroot/cgi-bin/awstats.pl 命令进行初始数据更新
使用 http://my.site.com/awstats.pl 查看数据
后续
将 ./awstats_updateall.pl now -awstatsprog=/var/www/awstats-6.8/wwwroot/cgi-bin/awstats.pl 放到crontab 中做定时更新，可以做一个脚本和日志文件的处理一起做。
碰到问题
在使用unix socket时，碰到两个问题
1.写socket的目录没有写权限，添加上解决
2.nginx连不上socket, 看日志提示没有权限，在创建了socket后添加一句
chmod 0777, $ENV{FCGI_SOCKET_PATH};
问题解决。
遗留对awstats.pl访问密码限制问题尚未解决好。
解决 在 nginx 中按如下配置方式
location /awstats {
root /var/www/awstats-6.8/;
include awstats.conf;
auth_basic "awstats";
auth_basic_user_file /var/www/.passwd;
}
其中 将 awstats-6.8 目录下的 wwwroot 修改为 awstats, /var/www/.passwd 为访问目录要用来验证的账号密码文件,用apache的提供的工具htpasswd制作而成
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8 Responses to “为了Awstats给Nginx添加FastCGI方式的Perl支持”
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有两点疑问:
1.
vi startfcgiperlexport FCGI_SOCKET_PATH=”/tmp/perl_fcgi.socket”
export FCGI_NPROCESSES=4
./fcgi_perl &
这里fcgi_perl会输出到到控制台上.
我使用1>/dev/null 2>&1 解决
2.
你的awstats能显示图片吗? 怎么解决的?
[Reply]
sunny Reply:
November 1st, 2008 at 5:15 pm
你可以尝试修改awstats.model.conf 中的 DirIcons路径设置，在配合Web服务器中的路径设置，可以达到显示图片目的
[Reply]
xi2008wang Reply:
November 3rd, 2008 at 12:26 am
多谢, 已解决.
我是按awstats官方文档将icon复制到了根目录
[Reply]
.pl 后面可以加参数吗？
[Reply]
sunny Reply:
November 8th, 2008 at 11:32 pm
什么意思？给 fcgi_perl 脚本加 命令行 参数 ?
[Reply]
就是在浏览器地址栏里：像这样的链接
http://sitename.com/xxx.pl?name=xxx&status=yyy&k=0
我试了一下，不加后面那些get的参数是没问题的，但是加上了就不行了。
[Reply]