Trailing Slash Redirect Loop Help

[Steven Hartland]

If is evil 
<https://www.nginx.com/resources/wiki/start/topics/depth/ifisevil/> I'd 
suggest using try_files instead, which is typically something like:

location / {
      try_files $uri $uri/ =404;
}

     Regards
     Steve


On 28/04/2017 15:27, Alex Med wrote:
> Hi,
>
> I am having an issue getting rid of the trailing slashes for directories.  I
> have used the following to get rid off the trailing slash:
>
>
> #rewrite all URIs without any '.' in them that end with a '/'
>          #rewrite ^([^.]*)/$ $1 permanent;
>
> &
> #rewrite all URIs that end with a '/'
> rewrite ^/(.*)/$ /$1 permanent;
>
> They both work, but they do not when it comes to directories.  When it is a
> directory the page is not displayed because it has different redirects.
> Here is the code that I have used inside the LOCATION definition as well as
> in the SERVER block and they just do not work.
>
>
> if (!-e $request_filename) {
> rewrite ^/(.*)/$ /$1 permanent;
> }
>
> Or, I have used this one:
>
> if (!-e $request_filename) {
> rewrite ^([^.]*)/$ $1 permanent;
> }
>
> Note:  I have tested individually the two rules either in the server block
> or the location block and I still get the redirection problems with files or
> directories.
>
>
> Could any of you please help me and tell me what I am doing wrong.
> Basically, when I enable the rewrite rule to get rid off the trailing slash
> all directories get multiple redirects and end up in a loop.
>
> Here is the nginx configuration.
>
>
> user www-data;
> worker_processes X;
> pid /xxxx.pid;
>
> events {
> 	worker_connections xxxx;
> 	# multi_accept on;
> }
>
>
>
> http {
>          ##
>          # Basic Settings
>          ##
>
>          sendfile off;
>          tcp_nopush on;
>          tcp_nodelay on;
>          keepalive_timeout 65;
>          types_hash_max_size 2048;
>          #below hides the version of nginx
> 	server_tokens off;
>
>          server_names_hash_bucket_size 64;
>          #this sets the url hash map table size for url rewrites
>          map_hash_bucket_size 128;
>          map_hash_max_size 2048;
> 	# server_name_in_redirect off;
>
>          include /xxxx.types;
>          default_type application/octet-stream;
>
>       
>
>          ##
>          # Gzip Settings
>          ##
>
>          gzip on;
>
>          gzip_vary on;
>          gzip_proxied any;
>          gzip_comp_level 7;
>          gzip_buffers 16 8k;
>          gzip_http_version 1.1;
>   	# Disable for IE < 6 because there are some known problems
>          gzip_disable "MSIE [1-6].(?!.*SV1)";
>
>          gzip_types
> 		text/plain
>                  text/css
> 		text/javascript
> 		application/javascript
> 	        application/json
> 		application/x-javascript
> 		application/xml;
>
>          ##
>          # Buffer Size
>          ##
>          proxy_buffering on;
>          proxy_buffers   4 256k;
>          proxy_buffer_size   128k;
>          proxy_busy_buffers_size   256k;
>
>       
>
>
>          ##
>          ## URL REWRITE MAP
>          ## File that contains all url rewrite rules for server
>          include xxxurlmap.conf;
>
>
> # SERVER DEFINITIONS
>
>
>
>
> ###FORWARD ALL 80 INCOMING REQUEST TO SSL
> server {
> 	listen 80 default_server;
> 	listen [::]:80 default_server;
> 	server_name example.com www.example.com;
> 	return 301 https://www.example.com$request_uri;
> }
>
> #HTTPS server
>
> #CHANGE DOMAIN NAME from NO-WWW to WWW - CREATE ONE SERVER INSTANCE AND
> RETURN IT
> server {
>      listen       443 ssl http2;
>      server_name  example.com;
>      ssl_certificate     /xxx.pem;
>      ssl_certificate_key /xxxx.pem;
>     return       301 https://www.example.com$request_uri;
> }
>
>
> # Secure Server Configuration HTTPS Server
>
> server {
>
>          listen 443 ssl http2;
>          listen [::]:443 ssl http2;
>          server_name www.example.com;
>
>   
>          ssl_certificate     /etc/ssl/fullchain.pem;
>          ssl_certificate_key /etc/ssl/privkey.pem;
> 	    ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
>
>          ssl_session_cache shared:SSL:20m;
>          ssl_session_timeout 60m;
> 	
>       
>   
>         ## THIS CONDITION REWRITES ALL URLS TO THE NEW ONES
>          if ( $redirect_uri ) {
>          return 301 $redirect_uri;
>             }
>     
>
>          location / {
>              proxy_pass https://xxxx:xportNumber;
>              proxy_set_header  Host $host;
>              proxy_set_header  X-Real-IP $remote_addr;
>              proxy_set_header  X-Forwarded-For $proxy_add_x_forwarded_for;
>              proxy_connect_timeout 600;
>              proxy_send_timeout 600;
>              proxy_read_timeout 600;
>              proxy_redirect off;
>     #this deletes all the traling slash of all Content
>     if (!-e $request_filename) {
>          rewrite ^/(.*)/$ /$1 permanent;
>           }
>
>
>                  }
>
>
>          }
>
> }
>
> Posted at Nginx Forum: https://forum.nginx.org/read.php?2,273964,273964#msg-273964
>
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