96 lines
2.3 KiB
Go
96 lines
2.3 KiB
Go
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// Package debug provides the API for various debug endpoints in lotus-provider.
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package debug
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import (
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"encoding/json"
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"fmt"
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"net/http"
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"time"
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"github.com/gorilla/mux"
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logging "github.com/ipfs/go-log/v2"
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"github.com/filecoin-project/lotus/build"
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cliutil "github.com/filecoin-project/lotus/cli/util"
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"github.com/filecoin-project/lotus/cmd/lotus-provider/deps"
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)
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var log = logging.Logger("lp/web/debug")
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type debug struct {
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*deps.Deps
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}
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func Routes(r *mux.Router, deps *deps.Deps) {
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d := debug{deps}
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r.Methods("GET").Path("chain-state-sse").HandlerFunc(d.chainStateSSE)
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}
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type rpcInfo struct {
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Address string
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CLayers []string
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Reachable bool
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SyncState string
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Version string
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}
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func (d *debug) chainStateSSE(w http.ResponseWriter, r *http.Request) {
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w.Header().Set("Access-Control-Allow-Origin", "*")
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w.Header().Set("Access-Control-Allow-Headers", "Content-Type")
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w.Header().Set("Content-Type", "text/event-stream")
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w.Header().Set("Cache-Control", "no-cache")
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w.Header().Set("Connection", "keep-alive")
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v1api := d.Deps.Full
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ctx := r.Context()
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ai := cliutil.ParseApiInfo(d.Deps.Cfg.Apis.ChainApiInfo[0])
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ver, err := v1api.Version(ctx)
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if err != nil {
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log.Warnw("Version", "error", err)
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return
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}
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sse:
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for {
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head, err := v1api.ChainHead(ctx)
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if err != nil {
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log.Warnw("ChainHead", "error", err)
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return
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}
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var syncState string
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switch {
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case time.Now().Unix()-int64(head.MinTimestamp()) < int64(build.BlockDelaySecs*3/2): // within 1.5 epochs
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syncState = "ok"
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case time.Now().Unix()-int64(head.MinTimestamp()) < int64(build.BlockDelaySecs*5): // within 5 epochs
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syncState = fmt.Sprintf("slow (%s behind)", time.Since(time.Unix(int64(head.MinTimestamp()), 0)).Truncate(time.Second))
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default:
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syncState = fmt.Sprintf("behind (%s behind)", time.Since(time.Unix(int64(head.MinTimestamp()), 0)).Truncate(time.Second))
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}
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select {
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case <-ctx.Done():
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break sse
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default:
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}
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fmt.Fprintf(w, "data: ")
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err = json.NewEncoder(w).Encode(rpcInfo{
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Address: ai.Addr,
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CLayers: []string{},
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Reachable: true,
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Version: ver.Version,
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SyncState: syncState,
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})
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if err != nil {
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log.Warnw("json encode", "error", err)
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return
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}
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fmt.Fprintf(w, "\n\n")
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if f, ok := w.(http.Flusher); ok {
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f.Flush()
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}
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}
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}
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