92 lines
1.9 KiB
Go
92 lines
1.9 KiB
Go
package main
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import (
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"fmt"
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"log"
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"math"
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"net/http"
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"net/http/httputil"
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)
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func handler(p *httputil.ReverseProxy) func(http.ResponseWriter, *http.Request) {
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return func(w http.ResponseWriter, r *http.Request) {
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//put the request inside our structure
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ProxyFlow.request = r
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probs := Classifier.Posterior(formatRequest(r))
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log.Printf("Posterior Probabilities: %+v\n", probs)
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action := quadrant(probs)
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ControPlane.StatsTokens <- action
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switch action {
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case "BLOCK":
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w.Header().Set("Probabilities", fmt.Sprintf("%v", probs))
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w.WriteHeader(403)
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w.Header().Set("Content-Encoding", "none")
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fmt.Fprintf(w, fmt.Sprintf("%s", BlockMessage))
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log.Println("Request Blocked")
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case "BLOCKLEARN":
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p.ModifyResponse = classifierDecide
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w.Header().Set("Probabilities", fmt.Sprintf("%v ", probs))
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w.WriteHeader(403)
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log.Println("Still Ingesting prediction")
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p.ServeHTTP(w, r)
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case "PASS":
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w.Header().Set("Probabilities", fmt.Sprintf("%v ", probs))
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p.ServeHTTP(w, r)
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log.Println("Passing Request")
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case "PASSLEARN":
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p.ModifyResponse = classifierDecide
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w.Header().Set("Probabilities", fmt.Sprintf("%v ", probs))
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p.ServeHTTP(w, r)
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log.Println("Passing Request and ingesting")
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default:
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log.Println("No Decision: PASS and LEARN")
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p.ModifyResponse = classifierDecide
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w.Header().Set("Probabilities", fmt.Sprintf("%v ", probs))
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p.ServeHTTP(w, r)
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}
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}
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}
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func quadrant(p map[string]float64) string {
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sure := math.Abs(p["BAD"]-p["GOOD"]) >= ProxyFlow.sensitivity
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badish := p["BAD"] > p["GOOD"]
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goodish := p["GOOD"] > p["BAD"]
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if ProxyFlow.seniority < Maturity {
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log.Println("Seniority too low. Waiting.")
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return "MEH"
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}
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if sure {
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if goodish {
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return "PASS"
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}
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if badish {
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return "BLOCK"
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}
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} else {
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if goodish {
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return "PASSLEARN"
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}
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if badish {
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return "BLOCKLEARN"
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}
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}
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return "MEH"
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}
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