nginx+awstats 统计web服务器log

2008-09-07 14:11:40

　标签：nginx awstats　　　[推送到技术圈]

nginx+perl+fastcgi+awstats

因为不再用apache，迁移到了nginx

默认编译安装的nginx对cgi的支持并不好(所以在编译的时候一般都没打开这个功能)

google了一把。大家都用fastcgi来支持。就照搬吧

[url]http://wiki.codemongers.com/NginxSimpleCGI[/url]

wiki中有一篇，貌似这个是原创，哈哈

很多人懒得看英文，我就翻译一下吧。
如果你没有cgi的文件，可以自己建立一个简单的。
只需要如下三行代码就可以了。

#vi index.cgi

#!/usr/bin/perl

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

print "<html><body>Hello, world.</body></html>";

放到web根目录下的cgi-bin目录里面，记得要给它执行权限

接下来是用perl写一个daemon程序来处理cgi文件，幸运的是源代码已经有了。嘿嘿

#vi 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( "/opt/nginx/fcgi/cgi.sock", 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";

}

这个文件只需要修改一个地方/opt/nginx/fcgi/cgi.sock，改到你想放的地方，比如/var/run/fcgi.sock 注意要有权限，以便nginix可以正常访问它，如果不知道怎么配置权限
就chmod 777 好了（汗，一个很烂的习惯），正确的做法是将该文件的属主和数组设为nginx的运行用户，
比如nginx用nobody用户运行，则 chown nobody:nobody /var/run/cgi.sock 注意，上层目录也要有执行权限，这样才能访问这个unix socket（访问不到目录，自然不能访问文件了）

这些都做好以后可以启动这个文件了，

#chmod 755 cgiwrap-fcgi.pl
#./cgiwrap-fcgi.pl &
再后台运行。不过这该死的程序居然在终端打印日志，一会调试成功了，可以用
./cgiwrap-fcgi.pl >/dev/null 2>&1 &
这样世界就清净了
如果想保留日志，自己改perl代码吧，不是很难，加上输出文件句柄就可以了。保存到文件中。嘿嘿。

接下来就修改nginx.conf

location ~ ^/cgi-bin/.*\.cgi$ {

gzip off; #gzip makes scripts feel slower since they have to complete before getting gzipped

fastcgi_pass unix:/var/run/nginx/cgi.sock;

fastcgi_index index.cgi;

fastcgi_param SCRIPT_FILENAME /var/www/cgi-bin$fastcgi_script_name;

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;

下面这么多其实可以用一个文件来包含起来，不用这么多，看的心乱

location ~ ^/cgi-bin/.*\.cgi$ {

gzip off; #gzip makes scripts feel slower since they have to complete before getting gzipped

fastcgi_pass unix:/var/run/nginx/cgi.sock;

fastcgi_index index.cgi;

include fastcgi_params;

}

ok,接下来重启nginx
kill -HUP `cat /usr/local/nginx/nginx.pid`

然后我们访问刚才的那个cgi文件，[url]http://XXXXXXXXXX/cgi-bin/index.cgi[/url] 如果看到hello world ，就说明成功了。嘿嘿，就这么简单。

awstats默认的配置中只有IIS和apache的LOG格式，需要我们自定义一下

在/etc/awstats/awstats.mysite.conf里设置log格式如下(默认值是1):
LogFormat="%host %other %logname %time1 %methodurl %code %bytesd %refererquot %uaquot %otherquot"

在nginx中也配置好log格式

log_format wwwlogs '$remote_addr - $remote_user [$time_local] "$request" '

'$status $body_bytes_sent "$http_referer" '

'"$http_user_agent" $http_x_forwarded_for';

access_log /var/log/nginx/blog_log.log wwwlogs;

再设置log的轮转

3)新建一个日志回滚,vi /etc/logrotate.d/nginx (路径根据操作系统不同而变化)
内容如下:

/var/log/nginx {

daily

missingok

rotate 7

compress

delaycompress notifempty

create 644 nginx root sharedscripts

prerotate

/usr/local/awstats/wwwroot/cgi-bin/awstats.pl --config=www.mysite.com -update

endscript

postrotate

if [ -f /usr/local/nginx/nginx.pid ]; then

kill -USR1 `cat /usr/local/nginx/nginx.pid`

endscript

}

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