mirror of
https://gitlab.com/pulsechaincom/prysm-pulse.git
synced 2024-12-25 12:57:18 +00:00
5b83dffbe4
* Starting * Removing feature flag * Minor touchups service.go * Conflict * Started fixing test * Init fork choice store for tests
134 lines
3.9 KiB
Go
134 lines
3.9 KiB
Go
package blockchain
|
|
|
|
import (
|
|
"bytes"
|
|
"encoding/hex"
|
|
"fmt"
|
|
"net/http"
|
|
"sort"
|
|
"strconv"
|
|
|
|
"github.com/emicklei/dot"
|
|
"github.com/prysmaticlabs/prysm/shared/bytesutil"
|
|
"github.com/sirupsen/logrus"
|
|
)
|
|
|
|
const latestSlotCount = 10
|
|
|
|
// HeadsHandler is a handler to serve /heads page in metrics.
|
|
func (s *Service) HeadsHandler(w http.ResponseWriter, _ *http.Request) {
|
|
buf := new(bytes.Buffer)
|
|
|
|
if _, err := fmt.Fprintf(w, "\n %s\t%s\t", "Head slot", "Head root"); err != nil {
|
|
logrus.WithError(err).Error("Failed to render chain heads page")
|
|
return
|
|
}
|
|
|
|
if _, err := fmt.Fprintf(w, "\n %s\t%s\t", "---------", "---------"); err != nil {
|
|
logrus.WithError(err).Error("Failed to render chain heads page")
|
|
return
|
|
}
|
|
|
|
slots := s.latestHeadSlots()
|
|
for _, slot := range slots {
|
|
r := hex.EncodeToString(bytesutil.Trunc(s.canonicalRoots[uint64(slot)]))
|
|
if _, err := fmt.Fprintf(w, "\n %d\t\t%s\t", slot, r); err != nil {
|
|
logrus.WithError(err).Error("Failed to render chain heads page")
|
|
return
|
|
}
|
|
}
|
|
|
|
w.WriteHeader(http.StatusOK)
|
|
if _, err := w.Write(buf.Bytes()); err != nil {
|
|
log.WithError(err).Error("Failed to render chain heads page")
|
|
}
|
|
|
|
}
|
|
|
|
const template = `<html>
|
|
<head>
|
|
<script src="//cdnjs.cloudflare.com/ajax/libs/viz.js/2.1.2/viz.js"></script>
|
|
<script src="//cdnjs.cloudflare.com/ajax/libs/viz.js/2.1.2/full.render.js"></script>
|
|
<body>
|
|
<script type="application/javascript">
|
|
var graph = ` + "`%s`;" + `
|
|
var viz = new Viz();
|
|
viz.renderSVGElement(graph) // reading the graph.
|
|
.then(function(element) {
|
|
document.body.appendChild(element); // appends to document.
|
|
})
|
|
.catch(error => {
|
|
// Create a new Viz instance (@see Caveats page for more info)
|
|
viz = new Viz();
|
|
// Possibly display the error
|
|
console.error(error);
|
|
});
|
|
</script>
|
|
</head>
|
|
</body>
|
|
</html>`
|
|
|
|
// TreeHandler is a handler to serve /tree page in metrics.
|
|
func (s *Service) TreeHandler(w http.ResponseWriter, _ *http.Request) {
|
|
if s.headState == nil {
|
|
if _, err := w.Write([]byte("Unavailable during initial syncing")); err != nil {
|
|
log.WithError(err).Error("Failed to render p2p info page")
|
|
}
|
|
}
|
|
|
|
nodes := s.forkChoiceStore.Nodes()
|
|
|
|
graph := dot.NewGraph(dot.Directed)
|
|
graph.Attr("rankdir", "RL")
|
|
graph.Attr("labeljust", "l")
|
|
|
|
dotNodes := make([]*dot.Node, len(nodes))
|
|
avgBalance := uint64(averageBalance(s.headState.Balances()))
|
|
|
|
for i := len(nodes) - 1; i >= 0; i-- {
|
|
// Construct label for each node.
|
|
slot := strconv.Itoa(int(nodes[i].Slot))
|
|
weight := strconv.Itoa(int(nodes[i].Weight / 1e9)) // Convert unit Gwei to unit ETH.
|
|
votes := strconv.Itoa(int(nodes[i].Weight / 1e9 / avgBalance))
|
|
bestDescendent := strconv.Itoa(int(nodes[i].BestDescendent))
|
|
index := strconv.Itoa(int(i))
|
|
label := "slot: " + slot + "\n index: " + index + "\n bestDescendent: " + bestDescendent + "\n votes: " + votes + "\n weight: " + weight
|
|
var dotN dot.Node
|
|
if nodes[i].Parent != ^uint64(0) {
|
|
dotN = graph.Node(index).Box().Attr("label", label)
|
|
}
|
|
|
|
if nodes[i].Slot == s.headSlot &&
|
|
nodes[i].BestDescendent == ^uint64(0) {
|
|
dotN = dotN.Attr("color", "green")
|
|
}
|
|
|
|
dotNodes[i] = &dotN
|
|
}
|
|
|
|
for i := len(nodes) - 1; i >= 0; i-- {
|
|
if nodes[i].Parent != ^uint64(0) && nodes[i].Parent < uint64(len(dotNodes)) {
|
|
graph.Edge(*dotNodes[i], *dotNodes[nodes[i].Parent])
|
|
}
|
|
}
|
|
|
|
w.WriteHeader(http.StatusOK)
|
|
w.Header().Set("Content-Type", "text/html")
|
|
if _, err := fmt.Fprintf(w, template, graph.String()); err != nil {
|
|
log.WithError(err).Error("Failed to render p2p info page")
|
|
}
|
|
}
|
|
|
|
// This returns the latest head slots in a slice and up to latestSlotCount
|
|
func (s *Service) latestHeadSlots() []int {
|
|
slots := make([]int, 0, len(s.canonicalRoots))
|
|
for k := range s.canonicalRoots {
|
|
slots = append(slots, int(k))
|
|
}
|
|
sort.Ints(slots)
|
|
if (len(slots)) > latestSlotCount {
|
|
return slots[len(slots)-latestSlotCount:]
|
|
}
|
|
return slots
|
|
}
|