Rest API call with api_key in header fails if nginx is proxying moqui application

问题

When run moqui on 8080 port, and access it directly by api

curl -X GET -H "api_key: {apiKey}" http://localhost:8080/rest/s1/example/examples/TEST2

it returns json result of example TEST2.

But when nginx is put in front of mqoui application. proxy to http://localhost:8080, then the api access fails with 403

{
  "errorCode": 403,
  "errors": "User null is not authorized for View on REST Path /example/examples/{exampleId}\nCurrent artifact info: [name:'/example/examples/{exampleId}', type:'AT_REST_PATH', action:'AUTHZA_VIEW', required: true, granted:false, user:'null', authz:'null', authAction:'null', inheritable:false, runningTime:0]\nCurrent artifact stack:\n[name:'/example/examples', type:'AT_REST_PATH', action:'AUTHZA_VIEW', required: false, granted:null, user:'null', authz:'null', authAction:'null', inheritable:false, runningTime:0]\n[name:'/example', type:'AT_REST_PATH', action:'AUTHZA_VIEW', required: false, granted:null, user:'null', authz:'null', authAction:'null', inheritable:false, runningTime:0]\n[name:'component://webroot/screen/webroot/rest.xml/s1', type:'AT_XML_SCREEN_TRANS', action:'AUTHZA_VIEW', required: false, granted:null, user:'null', authz:'null', authAction:'null', inheritable:false, runningTime:0]\n[name:'component://webroot/screen/webroot/rest.xml', type:'AT_XML_SCREEN', action:'AUTHZA_VIEW', required: false, granted:null, user:'null', authz:'null', authAction:'null', inheritable:false, runningTime:0]\n[name:'component://webroot/screen/webroot.xml', type:'AT_XML_SCREEN', action:'AUTHZA_VIEW', required: false, granted:null, user:'null', authz:'null', authAction:'null', inheritable:false, runningTime:0]"
}

It appears webFacade does not initialize userFacade by api_key successfully, since in errors user is null.

回答1:

Nginx disallows underscore _ in the header name by default. Moqui api use api_key or login_key that contains underscore, so the api_key or login_key header is not passed to backend moqui application.

Enable underscore in header name in nginx is simple, add

underscores_in_headers on;

in http or server directive in nginx configuration.

来源：https://stackoverflow.com/questions/37938957/rest-api-call-with-api-key-in-header-fails-if-nginx-is-proxying-moqui-applicatio