35 lines
1.4 KiB
Go
35 lines
1.4 KiB
Go
package restful
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import "strings"
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// Copyright 2013 Ernest Micklei. All rights reserved.
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// Use of this source code is governed by a license
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// that can be found in the LICENSE file.
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// OPTIONSFilter is a filter function that inspects the Http Request for the OPTIONS method
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// and provides the response with a set of allowed methods for the request URL Path.
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// As for any filter, you can also install it for a particular WebService within a Container.
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// Note: this filter is not needed when using CrossOriginResourceSharing (for CORS).
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func (c *Container) OPTIONSFilter(req *Request, resp *Response, chain *FilterChain) {
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if "OPTIONS" != req.Request.Method {
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chain.ProcessFilter(req, resp)
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return
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}
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archs := req.Request.Header.Get(HEADER_AccessControlRequestHeaders)
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methods := strings.Join(c.computeAllowedMethods(req), ",")
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origin := req.Request.Header.Get(HEADER_Origin)
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resp.AddHeader(HEADER_Allow, methods)
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resp.AddHeader(HEADER_AccessControlAllowOrigin, origin)
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resp.AddHeader(HEADER_AccessControlAllowHeaders, archs)
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resp.AddHeader(HEADER_AccessControlAllowMethods, methods)
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}
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// OPTIONSFilter is a filter function that inspects the Http Request for the OPTIONS method
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// and provides the response with a set of allowed methods for the request URL Path.
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// Note: this filter is not needed when using CrossOriginResourceSharing (for CORS).
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func OPTIONSFilter() FilterFunction {
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return DefaultContainer.OPTIONSFilter
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}
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