66 lines
1.7 KiB
Go
66 lines
1.7 KiB
Go
// Copyright (C) 2015 Audrius Butkevicius and Contributors.
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package main
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import (
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"bytes"
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"encoding/json"
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"io/ioutil"
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"log"
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"net/url"
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"time"
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)
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func poolHandler(pool string, uri *url.URL, mapping mapping) {
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if debug {
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log.Println("Joining", pool)
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}
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for {
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uriCopy := *uri
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uriCopy.Host = mapping.Address().String()
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var b bytes.Buffer
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json.NewEncoder(&b).Encode(struct {
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URL string `json:"url"`
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}{
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uriCopy.String(),
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})
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resp, err := httpClient.Post(pool, "application/json", &b)
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if err != nil {
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log.Println("Error joining pool", pool, err)
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} else if resp.StatusCode == 500 {
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bs, err := ioutil.ReadAll(resp.Body)
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if err != nil {
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log.Println("Failed to join", pool, "due to an internal server error. Could not read response:", err)
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} else {
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log.Println("Failed to join", pool, "due to an internal server error:", string(bs))
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}
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resp.Body.Close()
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} else if resp.StatusCode == 429 {
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log.Println(pool, "under load, will retry in a minute")
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time.Sleep(time.Minute)
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continue
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} else if resp.StatusCode == 401 {
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log.Println(pool, "failed to join due to IP address not matching external address. Aborting")
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return
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} else if resp.StatusCode == 200 {
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var x struct {
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EvictionIn time.Duration `json:"evictionIn"`
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}
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err := json.NewDecoder(resp.Body).Decode(&x)
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if err == nil {
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rejoin := x.EvictionIn - (x.EvictionIn / 5)
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log.Println("Joined", pool, "rejoining in", rejoin)
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time.Sleep(rejoin)
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continue
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} else {
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log.Println("Failed to deserialize response", err)
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}
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} else {
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log.Println(pool, "unknown response type from server", resp.StatusCode)
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}
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time.Sleep(time.Hour)
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}
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}
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