How to get uid_set by userid module in php

Server NGINX
1

i set

fastcgi_param UID_GOT $uid_got;
fastcgi_param UID_SET $uid_set;

in my nginx configuration file

and enable userid module
but i can not get uid_set by $_SERVER[‘uid_set’] in php when a user
visit my site first time
and the uid_set is empty also in access log.

when i delete

fastcgi_param UID_GOT $uid_got;
fastcgi_param UID_SET $uid_set;

i can see uid_set value in access log.

the debug info is:

2010/03/01 17:17:25 15274#0: *3 http process request line
2010/03/01 17:17:25 15274#0: *3 recv: fd:10 437 of 32768
2010/03/01 17:17:25 15274#0: *3 http request line: “GET
/x.php?callback=xx HTTP/1.1”
2010/03/01 17:17:25 15274#0: *3 http uri: “/x.php”
2010/03/01 17:17:25 15274#0: *3 http args: “callback=xx”
2010/03/01 17:17:25 15274#0: *3 http exten: “php”
2010/03/01 17:17:25 15274#0: *3 http process request header line
2010/03/01 17:17:25 15274#0: *3 http header: “Host: 192.168.128.131”
2010/03/01 17:17:25 15274#0: 3 http header: “User-Agent: Mozilla/5.0
(Windows; U; Windows NT 5.1; zh-CN; rv:1.9.2) Gecko/20100115 Firefox/3.6
(.NET CLR 3.5.30729) FirePHP/0.4”
2010/03/01 17:17:25 15274#0: 3 http header: "Accept:
text/html,application/xhtml+xml,application/xml;q=0.9,/;q=0.8"
2010/03/01 17:17:25 15274#0: *3 http header: “Accept-Language:
zh-cn,zh;q=0.5”
2010/03/01 17:17:25 15274#0: *3 http header: “Accept-Encoding:
gzip,deflate”
2010/03/01 17:17:25 15274#0: 3 http header: "Accept-Charset:
GB2312,utf-8;q=0.7,;q=0.7"
2010/03/01 17:17:25 15274#0: *3 http header: “Keep-Alive: 115”
2010/03/01 17:17:25 15274#0: *3 http header: “Connection: keep-alive”
2010/03/01 17:17:25 15274#0: *3 http header: “Cache-Control: max-age=0”
2010/03/01 17:17:25 15274#0: *3 http header done
2010/03/01 17:17:25 15274#0: *3 event timer del: 10: 1267435105986
2010/03/01 17:17:25 15274#0: *3 generic phase: 0
2010/03/01 17:17:25 15274#0: *3 test location: “/status”
2010/03/01 17:17:25 15274#0: 3 test location: ~ "..(php|php5)?$"
2010/03/01 17:17:25 15274#0: 3 using configuration "..(php|php5)?$"
2010/03/01 17:17:25 15274#0: *3 http cl:-1 max:8388608
2010/03/01 17:17:25 15274#0: *3 generic phase: 2
2010/03/01 17:17:25 15274#0: *3 post rewrite phase: 3
2010/03/01 17:17:25 15274#0: *3 generic phase: 4
2010/03/01 17:17:25 15274#0: *3 generic phase: 5
2010/03/01 17:17:25 15274#0: *3 access phase: 6
2010/03/01 17:17:25 15274#0: *3 access phase: 7
2010/03/01 17:17:25 15274#0: *3 post access phase: 8
2010/03/01 17:17:25 15274#0: *3 malloc: 00000000059241D0:4096
2010/03/01 17:17:25 15274#0: *3 http init upstream, client timer: 0
2010/03/01 17:17:25 15274#0: *3 epoll add event: fd:10 op:3 ev:80000005
2010/03/01 17:17:25 15274#0: *3 http script copy:
“GATEWAY_INTERFACECGI/1.1”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “GATEWAY_INTERFACE:
CGI/1.1”
2010/03/01 17:17:25 15274#0: *3 http script copy: “SERVER_SOFTWARE”
2010/03/01 17:17:25 15274#0: *3 http script copy: “nginx/”
2010/03/01 17:17:25 15274#0: *3 http script var: “0.7.64”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “SERVER_SOFTWARE:
nginx/0.7.64”
2010/03/01 17:17:25 15274#0: *3 http script copy: “QUERY_STRING”
2010/03/01 17:17:25 15274#0: *3 http script var: “callback=xx”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “QUERY_STRING:
callback=xx”
2010/03/01 17:17:25 15274#0: *3 http script copy: “REQUEST_METHOD”
2010/03/01 17:17:25 15274#0: *3 http script var: “GET”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “REQUEST_METHOD: GET”
2010/03/01 17:17:25 15274#0: *3 http script copy: “CONTENT_TYPE”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: "CONTENT_TYPE: "
2010/03/01 17:17:25 15274#0: *3 http script copy: “CONTENT_LENGTH”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: "CONTENT_LENGTH: "
2010/03/01 17:17:25 15274#0: *3 http script copy: “SCRIPT_FILENAME”
2010/03/01 17:17:25 15274#0: *3 http script var: “/var/www”
2010/03/01 17:17:25 15274#0: *3 http script var: “/x.php”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “SCRIPT_FILENAME:
/var/www/x.php”
2010/03/01 17:17:25 15274#0: *3 http script copy: “SCRIPT_NAME”
2010/03/01 17:17:25 15274#0: *3 http script var: “/x.php”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “SCRIPT_NAME: /x.php”
2010/03/01 17:17:25 15274#0: *3 http script copy: “REQUEST_URI”
2010/03/01 17:17:25 15274#0: *3 http script var: “/x.php?callback=xx”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “REQUEST_URI:
/x.php?callback=xx”
2010/03/01 17:17:25 15274#0: *3 http script copy: “DOCUMENT_URI”
2010/03/01 17:17:25 15274#0: *3 http script var: “/x.php”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “DOCUMENT_URI: /x.php”
2010/03/01 17:17:25 15274#0: *3 http script copy: “DOCUMENT_ROOT”
2010/03/01 17:17:25 15274#0: *3 http script var: “/var/www”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “DOCUMENT_ROOT:
/var/www”
2010/03/01 17:17:25 15274#0: *3 http script copy: “SERVER_PROTOCOL”
2010/03/01 17:17:25 15274#0: *3 http script var: “HTTP/1.1”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “SERVER_PROTOCOL:
HTTP/1.1”
2010/03/01 17:17:25 15274#0: *3 http script copy: “REMOTE_ADDR”
2010/03/01 17:17:25 15274#0: *3 http script var: “192.168.128.1”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “REMOTE_ADDR:
192.168.128.1”
2010/03/01 17:17:25 15274#0: *3 http script copy: “REMOTE_PORT”
2010/03/01 17:17:25 15274#0: *3 http script var: “4828”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “REMOTE_PORT: 4828”
2010/03/01 17:17:25 15274#0: *3 http script copy: “SERVER_ADDR”
2010/03/01 17:17:25 15274#0: *3 http script var: “192.168.128.131”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “SERVER_ADDR:
192.168.128.131”
2010/03/01 17:17:25 15274#0: *3 http script copy: “SERVER_PORT”
2010/03/01 17:17:25 15274#0: *3 http script var: “80”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “SERVER_PORT: 80”
2010/03/01 17:17:25 15274#0: *3 http script copy: “SERVER_NAME”
2010/03/01 17:17:25 15274#0: *3 http script var: “192.168.128.131”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “SERVER_NAME:
192.168.128.131”
2010/03/01 17:17:25 15274#0: *3 http script copy: “UID_GOT”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “UID_GOT: "
2010/03/01 17:17:25 15274#0: *3 http script copy: “UID_SET”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “UID_SET: "
2010/03/01 17:17:25 15274#0: *3 http script copy: “REDIRECT_STATUS200”
2010/03/01 17:17:25 15274#0: *3 fastcgi param: “REDIRECT_STATUS: 200”
2010/03/01 17:17:25 15274#0: *3 http cleanup add: 000000000592D0B8
2010/03/01 17:17:25 15274#0: *3 get rr peer, try: 1
2010/03/01 17:17:25 15274#0: *3 socket 11
2010/03/01 17:17:25 15274#0: *3 epoll add connection: fd:11 ev:80000005
2010/03/01 17:17:25 15274#0: *3 connect to unix:/tmp/php-cgi.sock,
fd:11 #4
2010/03/01 17:17:25 15274#0: *3 connected
2010/03/01 17:17:25 15274#0: *3 http upstream connect: 0
2010/03/01 17:17:25 15274#0: *3 http upstream send request
2010/03/01 17:17:25 15274#0: *3 chain writer buf fl:0 s:904
2010/03/01 17:17:25 15274#0: *3 chain writer in: 00000000059246F8
2010/03/01 17:17:25 15274#0: *3 writev: 904
2010/03/01 17:17:25 15274#0: *3 chain writer out: 0000000000000000
2010/03/01 17:17:25 15274#0: *3 event timer add: 11:
300000:1267435345986
2010/03/01 17:17:25 15274#0: timer delta: 0
2010/03/01 17:17:25 15274#0: posted events 0000000000000000
2010/03/01 17:17:25 15274#0: worker cycle
2010/03/01 17:17:25 15274#0: epoll timer: 300000
2010/03/01 17:17:25 15274#0: epoll: fd:11 ev:0004 d:00002B240AB722F1
2010/03/01 17:17:25 15274#0: *3 http upstream request:
“/x.php?callback=xx”
2010/03/01 17:17:25 15274#0: *3 http upstream dummy handler
2010/03/01 17:17:25 15274#0: epoll: fd:10 ev:0004 d:00002B240AB72239
2010/03/01 17:17:25 15274#0: *3 http run request: “/x.php?callback=xx”
2010/03/01 17:17:25 15274#0: *3 http upstream check client, write
event:1, “/x.php”
2010/03/01 17:17:25 15274#0: *3 http upstream recv(): -1 (11: Resource
temporarily unavailable)
2010/03/01 17:17:25 15274#0: timer delta: 1
2010/03/01 17:17:25 15274#0: posted events 0000000000000000
2010/03/01 17:17:25 15274#0: worker cycle
2010/03/01 17:17:25 15274#0: epoll timer: 299999
2010/03/01 17:17:26 15274#0: epoll: fd:11 ev:0005 d:00002B240AB722F1
2010/03/01 17:17:26 15274#0: *3 http upstream request:
“/x.php?callback=xx”
2010/03/01 17:17:26 15274#0: *3 http upstream process header
2010/03/01 17:17:26 15274#0: *3 malloc: 0000000005953DE0:65536
2010/03/01 17:17:26 15274#0: *3 recv: fd:11 64 of 65536
2010/03/01 17:17:26 15274#0: *3 http fastcgi record byte: 01
2010/03/01 17:17:26 15274#0: *3 http fastcgi record byte: 06
2010/03/01 17:17:26 15274#0: *3 http fastcgi record byte: 00
2010/03/01 17:17:26 15274#0: *3 http fastcgi record byte: 01
2010/03/01 17:17:26 15274#0: *3 http fastcgi record byte: 00
2010/03/01 17:17:26 15274#0: *3 http fastcgi record byte: 35
2010/03/01 17:17:26 15274#0: *3 http fastcgi record byte: 03
2010/03/01 17:17:26 15274#0: *3 http fastcgi record byte: 00
2010/03/01 17:17:26 15274#0: *3 http fastcgi record length: 53
2010/03/01 17:17:26 15274#0: *3 http fastcgi parser: 0
2010/03/01 17:17:26 15274#0: *3 http fastcgi header: “X-Powered-By:
PHP/5.2.11”
2010/03/01 17:17:26 15274#0: *3 http fastcgi parser: 0
2010/03/01 17:17:26 15274#0: *3 http fastcgi header: “Content-type:
text/html”
2010/03/01 17:17:26 15274#0: *3 http fastcgi parser: 1
2010/03/01 17:17:26 15274#0: *3 http fastcgi header done
2010/03/01 17:17:26 15274#0: *3 uid cookie:
“uid=wKiAg0uLhiZT+zuqAwMDAg==; expires=Tue, 01-Mar-11 09:17:26 GMT;
domain=192.168.128.131; path=/”
2010/03/01 17:17:26 15274#0: *3 charset: “” > “utf-8”
2010/03/01 17:17:26 15274#0: *3 HTTP/1.1 200 OK
Server: nginx/0.7.64
Date: Mon, 01 Mar 2010 09:17:26 GMT
Content-Type: text/html; charset=utf-8
Transfer-Encoding: chunked
Connection: keep-alive
Vary: Accept-Encoding
X-Powered-By: PHP/5.2.11
Set-Cookie: uid=wKiAg0uLhiZT+zuqAwMDAg==; expires=Tue, 01-Mar-11
09:17:26 GMT; domain=192.168.128.131; path=/
P3P: policyref=”/w3c/p3p.xml”, CP=“CURa ADMa DEVa PSAo PSDo OUR BUS UNI
PUR INT DEM STA PRE COM NAV OTC NOI DSP COR”
Content-Encoding: gzip

Posted at Nginx Forum:

2

Hello!

On Mon, Mar 01, 2010 at 05:15:19AM -0500, lostsnow wrote:

and the uid_set is empty also in access log.

when i delete

fastcgi_param UID_GOT $uid_got;
fastcgi_param UID_SET $uid_set;

i can see uid_set value in access log.

Variables $uid_got and $uid_set are only available after userid
filter during sending headers. This happens before ssi/xslt
filtering (and of course logging), just after headers filter
(which handles expires and add_header).

An attempt to use these variables before they are available will
cache an empty value and you’ll won’t be able to see real values
at all.

Maxim D.

3

By the way,

how can i decode the cookie from the client

for example:

wKiAg0uMcKcZqg3nAwMDAg==

decode to

8380A8C0A7708C4BE70DAA1902030303

Posted at Nginx Forum:

4

$bin = base64_decode(‘wKiAg0uMcKcZqg3nAwMDAg==’);
$uid = join(array_map(function($i){return strtoupper(dechex($i));},
unpack(“L*”, $bin)), “”);
print $uid;

see also nginx uid decoding using Base64.decode64

Posted at Nginx Forum: