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How to intercept uri in nginx location

王林
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2023-05-18 12:07:061569browse

Explanation: The root and alias

root commands in

  • location just set the searched root to the root setting directory, that is, the uri will not be truncated, but the original uri will be used to jump to the directory to find the file

  • ais command will truncate the matching uri, and then use the path set by alias to add Search the remaining uri as a subpath

location proxy_pass's uri

If the proxy_pass url does not have a uri

  • If the tail is "/", the matching uri will be truncated

  • If the tail is not "/", the matching uri will not be truncated

If the url of proxy_pass contains uri, the matching uri will be truncated

examples

root## in location
#

root@pts/1 $ ls -ld /data/web/lctest*|awk '{print $nf}'
/data/web/lctest
/data/web/lctest2
/data/web/lctest3
/data/web/lctest4


location /lctest {
  root /data/web/;
}

location /lctest2/ {
  root /data/web/;
}
location /lctest3 {
  root /data/web;
}
location /lctest4/ {
  root /data/web;
}

curl test results are as follows

Note: If the browser does not add / at the end when inputting, it will be automatically added, but curl No

root@pts/1 $ curl http://tapi.xxxx.com/lctest/
hello world

root@pts/1 $ curl http://tapi.xxxx.com/lctest2/
hello world
2

root@pts/1 $ curl http://tapi.xxxx.com/lctest3/
3
hello world

root@pts/1 $ curl http://tapi.xxxx.com/lctest4/
hello world
4

location alias

location /lctest5 {
  alias /data/web/;
}
location /lctest6/ {
  alias /data/web/;
}

location /lctest7 {
  alias /data/web;
}

## 403 /data/web forbidden
location /lctest8/ {
  alias /data/web;
}

curl test results are as follows

curl 'http://tapi.kaishustory.com/lctest5/'
curl 'http://tapi.kaishustory.com/lctest6/'
curl 'http://tapi.kaishustory.com/lctest7/'
结果都是 /data/web/index.html的输出

root@pts/1 $ curl 'http://tapi.kaishustory.com/lctest8/'
<html>
<head><title>403 forbidden</title></head>
<body bgcolor="white">
<center><h1>403 forbidden</h1></center>
<hr><center>nginx</center>
</body>
</html>

location proxy_pass

#--------proxy_pass配置---------------------
location /t1/ { proxy_pass http://servers; }  #正常,不截断
location /t2/ { proxy_pass http://servers/; }  #正常,截断
location /t3 { proxy_pass http://servers; }  #正常,不截断
location /t4 { proxy_pass http://servers/; }  #正常,截断
location /t5/ { proxy_pass http://servers/test/; }  #正常,截断
location /t6/ { proxy_pass http://servers/test; }  #缺"/",截断
location /t7 { proxy_pass http://servers/test/; }  #含"//",截断
location /t8 { proxy_pass http://servers/test; }  #正常,截断

Test script

for i in $(seq 8)
do
  url=http://tapi.xxxx.com/t$i/doc/index.html
  echo "-----------$url-----------"
  curl url
done

Test result

----------http://tapi.xxxx.com/t1/doc/index.html------------
/t1/doc/index.html

----------http://tapi.xxxx.com/t2/doc/index.html------------
/doc/index.html

----------http://tapi.xxxx.com/t3/doc/index.html------------
/t3/doc/index.html

----------http://tapi.xxxx.com/t4/doc/index.html------------
/doc/index.html

----------http://tapi.xxxx.com/t5/doc/index.html------------
/test/doc/index.html

----------http://tapi.xxxx.com/t6/doc/index.html------------
/testdoc/index.html

----------http://tapi.xxxx.com/t7/doc/index.html------------
/test//doc/index.html

----------http://tapi.xxxx.com/t8/doc/index.html------------
/test/doc/index.html

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