Created
June 22, 2020 05:53
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CORS nginx config using maps
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| add_header "Access-Control-Allow-Credentials" $cors_allowed_credentials; | |
| add_header "Access-Control-Allow-Headers" $cors_allowed_headers; | |
| add_header "Access-Control-Allow-Methods" $cors_allowed_methods; | |
| add_header "Access-Control-Allow-Origin" $cors_allowed_origin; | |
| add_header "Access-Control-Max-Age" $cors_max_age; |
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| map $http_origin $cors_is_allowed_origin { | |
| hostnames; | |
| default "false"; | |
| "~example(qa|staging)??\.com\.au$" "true"; | |
| } | |
| map $request_method $cors_is_allowed_methods { | |
| default "false"; | |
| OPTIONS "true"; | |
| GET "true"; | |
| POST "true"; | |
| DELETE "true"; | |
| PUT "true"; | |
| } | |
| map "$cors_is_allowed_origin:$cors_is_allowed_methods" $cors_is_allowed { | |
| default "false"; | |
| "true:true" "true"; | |
| } | |
| # this is a proxy for the credentials cors header | |
| map $cors_is_allowed $cors_allowed_credentials { | |
| default ""; | |
| "true" "true"; | |
| } | |
| map $cors_is_allowed $cors_allowed_headers { | |
| default ""; | |
| "true" "origin, x-requested-with, content-type, accept, pragma"; | |
| } | |
| map $cors_is_allowed $cors_allowed_methods { | |
| default ""; | |
| "true" "DELETE, GET, POST, OPTIONS, PUT"; | |
| } | |
| map "$request_method:$cors_is_allowed" $cors_max_age { | |
| default ""; | |
| "OPTIONS:true" "1728000"; | |
| } | |
| map $cors_is_allowed $cors_allowed_origin { | |
| default ""; | |
| "true" $http_origin; | |
| } |
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| http { | |
| # all your standard http config here | |
| # ... | |
| include /etc/nginx/conf.d/maps.conf; | |
| server { | |
| listen [::]:80 default_server; | |
| listen 80 default_server; | |
| server_name _; | |
| charset utf-8; | |
| autoindex off; | |
| sendfile off; | |
| rewrite_log on; | |
| log_not_found on; | |
| root /var/www/html; | |
| index index.html; | |
| include /etc/nginx/conf.d/headers.conf; | |
| # Handle preflight requests | |
| if ($request_method = "OPTIONS") { | |
| return 204; | |
| } | |
| # locations go here | |
| # ... | |
| } | |
| } |
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This is a config I came up with for NGINX using maps instead of
ifs based on If is Evil. Would love some feedback on whether this is a valid approach or there is a better way to do this?