49 lines
1.2 KiB
Go
49 lines
1.2 KiB
Go
package replacepath
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import (
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"context"
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"net/http"
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"github.com/containous/traefik/v2/pkg/config/dynamic"
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"github.com/containous/traefik/v2/pkg/log"
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"github.com/containous/traefik/v2/pkg/middlewares"
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"github.com/containous/traefik/v2/pkg/tracing"
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"github.com/opentracing/opentracing-go/ext"
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)
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const (
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// ReplacedPathHeader is the default header to set the old path to.
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ReplacedPathHeader = "X-Replaced-Path"
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typeName = "ReplacePath"
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)
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// ReplacePath is a middleware used to replace the path of a URL request.
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type replacePath struct {
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next http.Handler
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path string
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name string
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}
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// New creates a new replace path middleware.
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func New(ctx context.Context, next http.Handler, config dynamic.ReplacePath, name string) (http.Handler, error) {
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log.FromContext(middlewares.GetLoggerCtx(ctx, name, typeName)).Debug("Creating middleware")
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return &replacePath{
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next: next,
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path: config.Path,
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name: name,
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}, nil
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}
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func (r *replacePath) GetTracingInformation() (string, ext.SpanKindEnum) {
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return r.name, tracing.SpanKindNoneEnum
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}
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func (r *replacePath) ServeHTTP(rw http.ResponseWriter, req *http.Request) {
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req.Header.Add(ReplacedPathHeader, req.URL.Path)
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req.URL.Path = r.path
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req.RequestURI = req.URL.RequestURI()
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r.next.ServeHTTP(rw, req)
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}
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