47 lines
888 B
Go
47 lines
888 B
Go
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package main
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import (
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"encoding/json"
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"log"
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"net/http"
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"net/http/httputil"
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"net/url"
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"os"
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"strconv"
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)
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func main() {
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// read config file and parse it
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confB, err := os.ReadFile("proxy-config.json")
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if err != nil {
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log.Fatalf("reading config.json: %v", err)
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}
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hn := &Handler{}
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err = json.Unmarshal(confB, hn)
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if err != nil {
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log.Fatalf("unmarshaling config.json: %v", err)
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}
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proxyURL, err := url.Parse(hn.ProxyTarget)
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if err != nil {
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log.Fatalf("parsing proxy_target as URL: %v", err)
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}
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hn.proxy = &httputil.ReverseProxy{
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Rewrite: func(pr *httputil.ProxyRequest) {
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pr.SetURL(proxyURL)
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pr.Out.Host = pr.In.Host
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},
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}
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hn.limiter = NewLimiter()
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hn.client = &http.Client{}
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log.Printf("serving on port %v", hn.Port)
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err = http.ListenAndServe(":"+strconv.Itoa(hn.Port), hn)
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if err != nil {
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log.Fatalf("listening on port %v: %v", hn.Port, err)
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}
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}
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