mirror of
https://github.com/minio/minio.git
synced 2024-12-24 06:05:55 -05:00
54 lines
2.4 KiB
Go
54 lines
2.4 KiB
Go
// Copyright (c) 2015-2021 MinIO, Inc.
|
|
//
|
|
// This file is part of MinIO Object Storage stack
|
|
//
|
|
// This program is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Affero General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Affero General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Affero General Public License
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package cmd
|
|
|
|
import "net/http"
|
|
|
|
// Standard cross domain policy information located at https://s3.amazonaws.com/crossdomain.xml
|
|
const crossDomainXML = `<?xml version="1.0"?><!DOCTYPE cross-domain-policy SYSTEM "http://www.adobe.com/xml/dtds/cross-domain-policy.dtd"><cross-domain-policy><allow-access-from domain="*" secure="false" /></cross-domain-policy>`
|
|
|
|
// Standard path where an app would find cross domain policy information.
|
|
const crossDomainXMLEntity = "/crossdomain.xml"
|
|
|
|
// Cross domain policy implements http.Handler interface, implementing a custom ServerHTTP.
|
|
type crossDomainPolicy struct {
|
|
handler http.Handler
|
|
}
|
|
|
|
// A cross-domain policy file is an XML document that grants a web client, such as Adobe Flash Player
|
|
// or Adobe Acrobat (though not necessarily limited to these), permission to handle data across domains.
|
|
// When clients request content hosted on a particular source domain and that content make requests
|
|
// directed towards a domain other than its own, the remote domain needs to host a cross-domain
|
|
// policy file that grants access to the source domain, allowing the client to continue the transaction.
|
|
func setCrossDomainPolicy(h http.Handler) http.Handler {
|
|
return crossDomainPolicy{handler: h}
|
|
}
|
|
|
|
func (c crossDomainPolicy) ServeHTTP(w http.ResponseWriter, r *http.Request) {
|
|
// Look for 'crossdomain.xml' in the incoming request.
|
|
switch r.URL.Path {
|
|
case crossDomainXMLEntity:
|
|
// Write the standard cross domain policy xml.
|
|
w.Write([]byte(crossDomainXML))
|
|
// Request completed, no need to serve to other handlers.
|
|
return
|
|
}
|
|
// Continue to serve the request further.
|
|
c.handler.ServeHTTP(w, r)
|
|
}
|