if ( $http_cookie ~* "(.*)$") {
set $all_cookie $1;
}
变量$all_cookie就获得了cookie的值,可以用于运算了
2. 提取指定的一个cookie的值,然后根据需要使用,比如赋值给X-Real-Ip,
if ( $http_cookie ~* "pass_ip=(.+)(?:;|$)" ) {
set $one_cookie $1;
}
变量$one_cookie就获得了键值为pass_ip的这条cookie的值,可以用于运算了
3. 在proxy/fcgi等场景给Cookies增加内容,比如告诉后端你是那一台front。
proxy_set_header Cookie "$http_cookie; node_id=018"
这里增加了名为node_id的一个cookie进去,当然,就这个例子来说,也可以这样传递前端的ID给backend:
proxy_set_header X-CDN-ID "018";
后端通过$_SERVER['HTTP_X_CDN_ID']就可以获取到赋值。
listen 80;
server_name www.aslibra.com;
set $aslibra_auth "";
if ( $http_cookie ~* "aslibra_auth=(.+)(?:;|$)" ){
set $aslibra_auth $1;
}
log_format main '$proxy_add_x_forwarded_for - $remote_user [$time_local] '
'"$request" $status $bytes_sent '
'"$http_referer" "$http_user_agent" $aslibra_auth ';
access_log /Data/log/nginx-access.log main;
location / {
root /Data/webapps/www.aslibra.com/;
index index.html index.htm;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
}
参考分割日志的脚本:
log_dir="/Data/log"
time=`date +%Y%m%d`
/bin/mv ${log_dir}/nginx-access.log ${log_dir}/nginx-access.$time.log
kill -USR1 `cat /var/run/nginx.pid`
事例(二)
现有一需求,需要把我们手机网站的cookie信息记录到access.log里,数据挖掘部门需要根据这个来统计用户行为。其实我还真没有这样记录过日志,后来百度了一下,发现Nginx确实很强大。
具体实现看配置:
server
{
listen 80;
server_name 192.168.1.101;
#setting cookie log
#if ( $http_cookie ~* "wap_auth=(. )(?:;|$)" )
if ( $http_cookie ~* "(.*)$")
{
set $wap_cookie $1;
}
index index.php index.htm index.html;
add_header Load-Balancing $server_addr;
root /server/www/apps/wap_v2;
rewrite ^/css/(.*)$ /media/css/$1 last;
location /logs {
alias /data/nginx/logs/;
}
location ~* .*\.(php|html)?$
{
fastcgi_pass 127.0.0.1:9000;
fastcgi_index index.php;
include fcgi.conf;
}
location /nginx-status {
stub_status on;
allow 192.168.1.171;
deny all;
}
log_format wap_access '$remote_addr $host \
$server_addr [$time_local] "$request \
" ' '$status $body_bytes_sent \
"$http_referer" ' '"$http_user_agent\
" "$wap_cookie"';
access_log /data/nginx/logs/access_wap.log wap_access;
}
事例(三)
set $user_id "0";
#获取uuid
set $uuid "_";
if ( $http_cookie ~* "user_id=([0-9]*)" ){
set $user_id $1;
}
if ( $http_cookie ~* "_uuid=([A-Za-z0-9 ]*)" ){
set $uuid $1;
}
log_format main '$remote_addr - $remote_user [$time_local] "$request" '
'$status $body_bytes_sent "$http_referer" '
'"$http_user_agent" "$http_x_forwarded_for" $user_id "$uuid" ';