lotus/cmd/lotus-fountain/main.go
Steven Allen 5733c71c50 Lint everything
We were ignoring quite a few error cases, and had one case where we weren't
actually updating state where we wanted to. Unfortunately, if the linter doesn't
pass, nobody has any reason to actually check lint failures in CI.

There are three remaining XXXs marked in the code for lint.
2020-08-20 20:46:36 -07:00

437 lines
11 KiB
Go

package main
import (
"bytes"
"context"
"fmt"
"html/template"
"io"
"io/ioutil"
"net"
"net/http"
"os"
"sort"
"strconv"
"time"
rice "github.com/GeertJohan/go.rice"
"github.com/ipfs/go-cid"
logging "github.com/ipfs/go-log/v2"
"github.com/libp2p/go-libp2p-core/peer"
"github.com/urfave/cli/v2"
"golang.org/x/xerrors"
"github.com/filecoin-project/lotus/extern/sector-storage/ffiwrapper"
"github.com/filecoin-project/specs-actors/actors/abi"
"github.com/filecoin-project/specs-actors/actors/abi/big"
"github.com/filecoin-project/specs-actors/actors/builtin"
"github.com/filecoin-project/specs-actors/actors/builtin/power"
"github.com/filecoin-project/go-address"
"github.com/filecoin-project/lotus/api"
"github.com/filecoin-project/lotus/build"
"github.com/filecoin-project/lotus/chain/actors"
"github.com/filecoin-project/lotus/chain/types"
lcli "github.com/filecoin-project/lotus/cli"
"github.com/filecoin-project/specs-actors/actors/builtin/miner"
)
var log = logging.Logger("main")
var supportedSectors struct {
SectorSizes []struct {
Name string
Value uint64
Default bool
}
}
func init() {
for supportedSector := range miner.SupportedProofTypes {
sectorSize, err := supportedSector.SectorSize()
if err != nil {
panic(err)
}
supportedSectors.SectorSizes = append(supportedSectors.SectorSizes, struct {
Name string
Value uint64
Default bool
}{
Name: sectorSize.ShortString(),
Value: uint64(sectorSize),
Default: false,
})
}
sort.Slice(supportedSectors.SectorSizes[:], func(i, j int) bool {
return supportedSectors.SectorSizes[i].Value < supportedSectors.SectorSizes[j].Value
})
supportedSectors.SectorSizes[0].Default = true
}
func main() {
logging.SetLogLevel("*", "INFO")
log.Info("Starting fountain")
local := []*cli.Command{
runCmd,
}
app := &cli.App{
Name: "lotus-fountain",
Usage: "Devnet token distribution utility",
Version: build.UserVersion(),
Flags: []cli.Flag{
&cli.StringFlag{
Name: "repo",
EnvVars: []string{"LOTUS_PATH"},
Value: "~/.lotus", // TODO: Consider XDG_DATA_HOME
},
},
Commands: local,
}
if err := app.Run(os.Args); err != nil {
log.Warn(err)
return
}
}
var runCmd = &cli.Command{
Name: "run",
Usage: "Start lotus fountain",
Flags: []cli.Flag{
&cli.StringFlag{
Name: "front",
Value: "127.0.0.1:7777",
},
&cli.StringFlag{
Name: "from",
},
&cli.StringFlag{
Name: "amount",
EnvVars: []string{"LOTUS_FOUNTAIN_AMOUNT"},
Value: "50",
},
},
Action: func(cctx *cli.Context) error {
sendPerRequest, err := types.ParseFIL(cctx.String("amount"))
if err != nil {
return err
}
nodeApi, closer, err := lcli.GetFullNodeAPI(cctx)
if err != nil {
return err
}
defer closer()
ctx := lcli.ReqContext(cctx)
v, err := nodeApi.Version(ctx)
if err != nil {
return err
}
log.Info("Remote version: %s", v.Version)
from, err := address.NewFromString(cctx.String("from"))
if err != nil {
return xerrors.Errorf("parsing source address (provide correct --from flag!): %w", err)
}
defaultMinerPeer, err := peer.Decode("12D3KooWJpBNhwgvoZ15EB1JwRTRpxgM9D2fwq6eEktrJJG74aP6")
if err != nil {
return err
}
h := &handler{
ctx: ctx,
api: nodeApi,
from: from,
sendPerRequest: sendPerRequest,
limiter: NewLimiter(LimiterConfig{
TotalRate: 500 * time.Millisecond,
TotalBurst: build.BlockMessageLimit,
IPRate: 10 * time.Minute,
IPBurst: 5,
WalletRate: 15 * time.Minute,
WalletBurst: 2,
}),
minerLimiter: NewLimiter(LimiterConfig{
TotalRate: 500 * time.Millisecond,
TotalBurst: build.BlockMessageLimit,
IPRate: 10 * time.Minute,
IPBurst: 2,
WalletRate: 1 * time.Hour,
WalletBurst: 2,
}),
defaultMinerPeer: defaultMinerPeer,
}
http.Handle("/", http.FileServer(rice.MustFindBox("site").HTTPBox()))
http.HandleFunc("/miner.html", h.minerhtml)
http.HandleFunc("/send", h.send)
http.HandleFunc("/mkminer", h.mkminer)
http.HandleFunc("/msgwait", h.msgwait)
http.HandleFunc("/msgwaitaddr", h.msgwaitaddr)
fmt.Printf("Open http://%s\n", cctx.String("front"))
go func() {
<-ctx.Done()
os.Exit(0)
}()
return http.ListenAndServe(cctx.String("front"), nil)
},
}
type handler struct {
ctx context.Context
api api.FullNode
from address.Address
sendPerRequest types.FIL
limiter *Limiter
minerLimiter *Limiter
defaultMinerPeer peer.ID
}
func (h *handler) minerhtml(w http.ResponseWriter, r *http.Request) {
f, err := rice.MustFindBox("site").Open("_miner.html")
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
tmpl, err := ioutil.ReadAll(f)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
var executedTmpl bytes.Buffer
t, err := template.New("miner.html").Parse(string(tmpl))
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
}
if err := t.Execute(&executedTmpl, supportedSectors); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
if _, err := io.Copy(w, &executedTmpl); err != nil {
log.Errorf("failed to write template to string %s", err)
}
return
}
func (h *handler) send(w http.ResponseWriter, r *http.Request) {
to, err := address.NewFromString(r.FormValue("address"))
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
// Limit based on wallet address
limiter := h.limiter.GetWalletLimiter(to.String())
if !limiter.Allow() {
http.Error(w, http.StatusText(http.StatusTooManyRequests)+": wallet limit", http.StatusTooManyRequests)
return
}
// Limit based on IP
reqIP := r.Header.Get("X-Real-IP")
if reqIP == "" {
h, _, err := net.SplitHostPort(r.RemoteAddr)
if err != nil {
log.Errorf("could not get ip from: %s, err: %s", r.RemoteAddr, err)
}
reqIP = h
}
if i := net.ParseIP(reqIP); i != nil && i.IsLoopback() {
log.Errorf("rate limiting localhost: %s", reqIP)
}
limiter = h.limiter.GetIPLimiter(reqIP)
if !limiter.Allow() {
http.Error(w, http.StatusText(http.StatusTooManyRequests)+": IP limit", http.StatusTooManyRequests)
return
}
// General limiter to allow throttling all messages that can make it into the mpool
if !h.limiter.Allow() {
http.Error(w, http.StatusText(http.StatusTooManyRequests)+": global limit", http.StatusTooManyRequests)
return
}
smsg, err := h.api.MpoolPushMessage(h.ctx, &types.Message{
Value: types.BigInt(h.sendPerRequest),
From: h.from,
To: to,
}, nil)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
_, _ = w.Write([]byte(smsg.Cid().String()))
}
func (h *handler) mkminer(w http.ResponseWriter, r *http.Request) {
owner, err := address.NewFromString(r.FormValue("address"))
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
if owner.Protocol() != address.BLS {
http.Error(w,
"Miner address must use BLS. A BLS address starts with the prefix 't3'."+
"Please create a BLS address by running \"lotus wallet new bls\" while connected to a Lotus node.",
http.StatusBadRequest)
return
}
ssize, err := strconv.ParseInt(r.FormValue("sectorSize"), 10, 64)
if err != nil {
return
}
log.Infof("%s: create actor start", owner)
// Limit based on wallet address
limiter := h.minerLimiter.GetWalletLimiter(owner.String())
if !limiter.Allow() {
http.Error(w, http.StatusText(http.StatusTooManyRequests)+": wallet limit", http.StatusTooManyRequests)
return
}
// Limit based on IP
reqIP := r.Header.Get("X-Real-IP")
if reqIP == "" {
h, _, err := net.SplitHostPort(r.RemoteAddr)
if err != nil {
log.Errorf("could not get ip from: %s, err: %s", r.RemoteAddr, err)
}
reqIP = h
}
limiter = h.minerLimiter.GetIPLimiter(reqIP)
if !limiter.Allow() {
http.Error(w, http.StatusText(http.StatusTooManyRequests)+": IP limit", http.StatusTooManyRequests)
return
}
// General limiter owner allow throttling all messages that can make it into the mpool
if !h.minerLimiter.Allow() {
http.Error(w, http.StatusText(http.StatusTooManyRequests)+": global limit", http.StatusTooManyRequests)
return
}
smsg, err := h.api.MpoolPushMessage(h.ctx, &types.Message{
Value: types.BigInt(h.sendPerRequest),
From: h.from,
To: owner,
}, nil)
if err != nil {
http.Error(w, "pushfunds: "+err.Error(), http.StatusBadRequest)
return
}
log.Infof("%s: push funds %s", owner, smsg.Cid())
spt, err := ffiwrapper.SealProofTypeFromSectorSize(abi.SectorSize(ssize))
if err != nil {
http.Error(w, "sealprooftype: "+err.Error(), http.StatusBadRequest)
return
}
params, err := actors.SerializeParams(&power.CreateMinerParams{
Owner: owner,
Worker: owner,
SealProofType: spt,
Peer: abi.PeerID(h.defaultMinerPeer),
})
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
createStorageMinerMsg := &types.Message{
To: builtin.StoragePowerActorAddr,
From: h.from,
Value: big.Zero(),
Method: builtin.MethodsPower.CreateMiner,
Params: params,
}
signed, err := h.api.MpoolPushMessage(r.Context(), createStorageMinerMsg, nil)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
log.Infof("%s: create miner msg: %s", owner, signed.Cid())
http.Redirect(w, r, fmt.Sprintf("/wait.html?f=%s&m=%s&o=%s", signed.Cid(), smsg.Cid(), owner), http.StatusSeeOther)
}
func (h *handler) msgwait(w http.ResponseWriter, r *http.Request) {
c, err := cid.Parse(r.FormValue("cid"))
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
mw, err := h.api.StateWaitMsg(r.Context(), c, build.MessageConfidence)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
if mw.Receipt.ExitCode != 0 {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
w.WriteHeader(http.StatusOK)
}
func (h *handler) msgwaitaddr(w http.ResponseWriter, r *http.Request) {
c, err := cid.Parse(r.FormValue("cid"))
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
mw, err := h.api.StateWaitMsg(r.Context(), c, build.MessageConfidence)
if err != nil {
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
if mw.Receipt.ExitCode != 0 {
http.Error(w, xerrors.Errorf("create miner failed: exit code %d", mw.Receipt.ExitCode).Error(), http.StatusBadRequest)
return
}
w.WriteHeader(http.StatusOK)
var ma power.CreateMinerReturn
if err := ma.UnmarshalCBOR(bytes.NewReader(mw.Receipt.Return)); err != nil {
log.Errorf("%w", err)
http.Error(w, err.Error(), http.StatusBadRequest)
return
}
fmt.Fprintf(w, "{\"addr\": \"%s\"}", ma.IDAddress)
}