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handlers.go
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handlers.go
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package server
import (
"encoding/json"
"fmt"
"math/big"
"net/http"
"net/url"
"regexp"
"strconv"
"strings"
"time"
"github.com/cenkalti/backoff"
ethcommon "github.com/ethereum/go-ethereum/common"
ethtypes "github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/signer/core/apitypes"
"github.com/golang/glog"
"github.com/livepeer/go-livepeer/common"
"github.com/livepeer/go-livepeer/core"
"github.com/livepeer/go-livepeer/eth"
"github.com/livepeer/go-livepeer/eth/types"
"github.com/livepeer/go-livepeer/monitor"
"github.com/livepeer/go-livepeer/pm"
"github.com/livepeer/lpms/ffmpeg"
"github.com/pkg/errors"
)
const MainnetChainId = 1
const RinkebyChainId = 4
// Status
func (s *LivepeerServer) statusHandler() http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
respondJson(w, s.GetNodeStatus())
})
}
func (s *LivepeerServer) streamIdHandler() http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
respondOk(w, []byte(s.LastHLSStreamID().String()))
})
}
func (s *LivepeerServer) manifestIdHandler() http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
respondOk(w, []byte(s.LastManifestID()))
})
}
func localStreamsHandler() http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// XXX fetch local streams?
ret := make([]map[string]string, 0)
respondJson(w, ret)
})
}
type ChainIdGetter interface {
ChainID() (*big.Int, error)
}
func ethChainIdHandler(db ChainIdGetter) http.Handler {
return mustHaveDb(db, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
chainID, err := db.ChainID()
if err != nil {
respond500(w, fmt.Sprintf("Error getting eth network ID err=%q", err))
return
}
respondOk(w, []byte(chainID.String()))
}))
}
type BlockGetter interface {
LastSeenBlock() (*big.Int, error)
}
func currentBlockHandler(db BlockGetter) http.Handler {
return mustHaveDb(db, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
blk, err := db.LastSeenBlock()
if err != nil {
respond500(w, fmt.Sprintf("could not query last seen block: %v", err))
return
}
respondOk(w, blk.Bytes())
}))
}
type orchInfo struct {
Transcoder *types.Transcoder
PriceInfo *big.Rat
}
func (s *LivepeerServer) orchestratorInfoHandler(client eth.LivepeerEthClient) http.Handler {
return mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
addr := client.Account().Address
t, err := client.GetTranscoder(addr)
if err != nil {
respond500(w, "could not get transcoder")
return
}
info := orchInfo{
Transcoder: t,
PriceInfo: s.LivepeerNode.GetBasePrice("default"),
}
respondJson(w, info)
}))
}
func (s *LivepeerServer) isOrchestratorHandler() http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
respondOk(w, []byte(fmt.Sprintf("%v", s.LivepeerNode.NodeType == core.OrchestratorNode)))
})
}
func (s *LivepeerServer) isRedeemerHandler() http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
respondOk(w, []byte(fmt.Sprintf("%v", s.LivepeerNode.NodeType == core.RedeemerNode)))
})
}
// Broadcast / Transcoding config
func setBroadcastConfigHandler() http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
pricePerUnit := r.FormValue("maxPricePerUnit")
pixelsPerUnit := r.FormValue("pixelsPerUnit")
currency := r.FormValue("currency")
transcodingOptions := r.FormValue("transcodingOptions")
if (pricePerUnit == "" || pixelsPerUnit == "") && transcodingOptions == "" {
respond400(w, "missing form params (maxPricePerUnit AND pixelsPerUnit) or transcodingOptions")
return
}
// set max price
if pricePerUnit != "" && pixelsPerUnit != "" {
pr, ok := new(big.Rat).SetString(pricePerUnit)
if !ok {
respond400(w, fmt.Sprintf("Error parsing pricePerUnit value: %s", pricePerUnit))
return
}
px, ok := new(big.Rat).SetString(pixelsPerUnit)
if !ok {
respond400(w, fmt.Sprintf("Error parsing pixelsPerUnit value: %s", pixelsPerUnit))
return
}
if px.Sign() <= 0 {
respond400(w, fmt.Sprintf("pixels per unit must be greater than 0, provided %v", pixelsPerUnit))
return
}
pricePerPixel := new(big.Rat).Quo(pr, px)
var autoPrice *core.AutoConvertedPrice
if pricePerPixel.Sign() > 0 {
var err error
autoPrice, err = core.NewAutoConvertedPrice(currency, pricePerPixel, func(price *big.Rat) {
if monitor.Enabled {
monitor.MaxTranscodingPrice(price)
}
glog.Infof("Maximum transcoding price: %v wei per pixel\n", price.FloatString(3))
})
if err != nil {
respond400(w, errors.Wrap(err, "error converting price").Error())
return
}
}
BroadcastCfg.SetMaxPrice(autoPrice)
}
// set broadcast profiles
if transcodingOptions != "" {
var profiles []ffmpeg.VideoProfile
for _, pName := range strings.Split(transcodingOptions, ",") {
p, ok := ffmpeg.VideoProfileLookup[pName]
if ok {
profiles = append(profiles, p)
}
}
if len(profiles) == 0 {
respond400(w, fmt.Sprintf("invalid transcoding options: %v", transcodingOptions))
return
}
BroadcastJobVideoProfiles = profiles
glog.Infof("Transcode Job Type: %v", BroadcastJobVideoProfiles)
}
})
}
func getBroadcastConfigHandler() http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var pNames []string
for _, p := range BroadcastJobVideoProfiles {
pNames = append(pNames, p.Name)
}
config := struct {
MaxPrice *big.Rat
TranscodingOptions string
}{
BroadcastCfg.MaxPrice(),
strings.Join(pNames, ","),
}
respondJson(w, config)
})
}
func getAvailableTranscodingOptionsHandler() http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
transcodingOptions := make([]string, 0, len(ffmpeg.VideoProfileLookup))
for opt := range ffmpeg.VideoProfileLookup {
transcodingOptions = append(transcodingOptions, opt)
}
respondJson(w, transcodingOptions)
})
}
// Rounds
func currentRoundHandler(client eth.LivepeerEthClient) http.Handler {
return mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
currentRound, err := client.CurrentRound()
if err != nil {
respond500(w, fmt.Sprintf("could not query current round: %v", err))
return
}
respondOk(w, []byte(currentRound.String()))
}))
}
func initializeRoundHandler(client eth.LivepeerEthClient) http.Handler {
return mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
tx, err := client.InitializeRound()
if err != nil {
glog.Error(err)
respond500(w, fmt.Sprintf("could not initialize round: %v", err))
return
}
err = client.CheckTx(tx)
if err != nil {
glog.Error(err)
respond500(w, fmt.Sprintf("could not initialize round: %v", err))
return
}
respondOk(w, nil)
}))
}
func roundInitializedHandler(client eth.LivepeerEthClient) http.Handler {
return mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
initialized, err := client.CurrentRoundInitialized()
if err != nil {
glog.Error(err)
respond500(w, fmt.Sprintf("could not get initialized round: %v", err))
return
}
respondOk(w, []byte(fmt.Sprintf("%v", initialized)))
}))
}
// Orchestrator registration/activation
func (s *LivepeerServer) activateOrchestratorHandler(client eth.LivepeerEthClient) http.Handler {
return mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
t, err := client.GetTranscoder(client.Account().Address)
if err != nil {
glog.Error(err)
respond500(w, err.Error())
return
}
if t.Status == "Registered" {
respond400(w, "orchestrator already registered")
return
}
isLocked, err := client.CurrentRoundLocked()
if err != nil {
glog.Error(err)
respond500(w, err.Error())
return
}
if isLocked {
respond500(w, "current round is locked")
return
}
blockRewardCutStr := r.FormValue("blockRewardCut")
blockRewardCut, err := strconv.ParseFloat(blockRewardCutStr, 64)
if err != nil {
respond400(w, err.Error())
return
}
feeShareStr := r.FormValue("feeShare")
feeShare, err := strconv.ParseFloat(feeShareStr, 64)
if err != nil {
respond400(w, err.Error())
return
}
pricePerUnit, pixelsPerUnit, currency := r.FormValue("pricePerUnit"), r.FormValue("pixelsPerUnit"), r.FormValue("currency")
if err := s.setOrchestratorPriceInfo("default", pricePerUnit, pixelsPerUnit, currency); err != nil {
respond400(w, err.Error())
return
}
serviceURI := r.FormValue("serviceURI")
if _, err := url.ParseRequestURI(serviceURI); err != nil {
respond400(w, err.Error())
return
}
unbondingLockIDStr := r.FormValue("unbondingLockId")
if unbondingLockIDStr != "" {
unbondingLockID, err := common.ParseBigInt(unbondingLockIDStr)
if err != nil {
respond400(w, err.Error())
return
}
glog.Infof("Rebonding with unbonding lock %v...", unbondingLockID)
tx, err := client.RebondFromUnbonded(client.Account().Address, unbondingLockID)
if err != nil {
respond500(w, err.Error())
return
}
err = client.CheckTx(tx)
if err != nil {
respond500(w, err.Error())
return
}
}
amountStr := r.FormValue("amount")
if amountStr != "" {
amount, err := common.ParseBigInt(amountStr)
if err != nil {
respond400(w, err.Error())
return
}
if amount.Cmp(big.NewInt(0)) == 1 {
glog.Infof("Bonding %v...", amount)
tx, err := client.Bond(amount, client.Account().Address)
if err != nil {
respond500(w, err.Error())
return
}
err = client.CheckTx(tx)
if err != nil {
respond500(w, err.Error())
return
}
}
}
glog.Infof("Setting orchestrator commission rates %v", client.Account().Address.Hex())
tx, err := client.Transcoder(eth.FromPerc(blockRewardCut), eth.FromPerc(feeShare))
if err != nil {
respond500(w, err.Error())
return
}
err = client.CheckTx(tx)
if err != nil {
respond500(w, err.Error())
return
}
currentServiceURI, err := client.GetServiceURI(client.Account().Address)
if err != nil {
respond500(w, err.Error())
return
}
if currentServiceURI != serviceURI {
if err := s.setServiceURI(client, serviceURI); err != nil {
respond500(w, err.Error())
return
}
}
respondOk(w, nil)
}))
}
func (s *LivepeerServer) setOrchestratorConfigHandler(client eth.LivepeerEthClient) http.Handler {
return mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
pixels := r.FormValue("pixelsPerUnit")
price := r.FormValue("pricePerUnit")
currency := r.FormValue("currency")
if pixels != "" && price != "" {
if err := s.setOrchestratorPriceInfo("default", price, pixels, currency); err != nil {
respond400(w, err.Error())
return
}
}
var (
blockRewardCut float64
feeShare float64
err error
)
blockRewardCutStr := r.FormValue("blockRewardCut")
if blockRewardCutStr != "" {
blockRewardCut, err = strconv.ParseFloat(blockRewardCutStr, 64)
if err != nil {
err = errors.Wrapf(err, "Cannot convert block reward cut")
respond400(w, err.Error())
return
}
}
feeShareStr := r.FormValue("feeShare")
if feeShareStr != "" {
feeShare, err = strconv.ParseFloat(feeShareStr, 64)
if err != nil {
err = errors.Wrapf(err, "Cannot convert fee share")
respond400(w, err.Error())
return
}
}
t, err := client.GetTranscoder(client.Account().Address)
if err != nil {
respond500(w, err.Error())
return
}
if feeShareStr != "" && blockRewardCutStr != "" && (t.RewardCut.Cmp(eth.FromPerc(blockRewardCut)) != 0 || t.FeeShare.Cmp(eth.FromPerc(feeShare)) != 0) {
tx, err := client.Transcoder(eth.FromPerc(blockRewardCut), eth.FromPerc(feeShare))
if err != nil {
respond500(w, err.Error())
return
}
glog.Infof("Setting orchestrator commission rates for %v: reward cut=%v feeshare=%v", client.Account().Address.Hex(), blockRewardCut, feeShare)
err = client.CheckTx(tx)
if err != nil {
respond500(w, err.Error())
return
}
}
serviceURI := r.FormValue("serviceURI")
if serviceURI != "" {
if _, err := url.ParseRequestURI(serviceURI); err != nil {
respond400(w, err.Error())
return
}
if t.ServiceURI != serviceURI {
if err := s.setServiceURI(client, serviceURI); err != nil {
respond500(w, err.Error())
return
}
}
}
respondOk(w, nil)
}))
}
func (s *LivepeerServer) setOrchestratorPriceInfo(broadcasterEthAddr, pricePerUnitStr, pixelsPerUnitStr, currency string) error {
ok, err := regexp.MatchString("^0x[0-9a-fA-F]{40}|default$", broadcasterEthAddr)
if err != nil {
return err
}
if !ok {
return fmt.Errorf("broadcasterEthAddr is not a valid eth address, provided %v", broadcasterEthAddr)
}
pricePerUnit, ok := new(big.Rat).SetString(pricePerUnitStr)
if !ok {
return fmt.Errorf("error parsing pricePerUnit value: %s", pricePerUnitStr)
}
if pricePerUnit.Sign() < 0 {
return fmt.Errorf("price unit must be greater than or equal to 0, provided %s", pricePerUnitStr)
}
pixelsPerUnit, ok := new(big.Rat).SetString(pixelsPerUnitStr)
if !ok {
return fmt.Errorf("error parsing pixelsPerUnit value: %v", pixelsPerUnitStr)
}
if pixelsPerUnit.Sign() <= 0 {
return fmt.Errorf("pixels per unit must be greater than 0, provided %s", pixelsPerUnitStr)
}
pricePerPixel := new(big.Rat).Quo(pricePerUnit, pixelsPerUnit)
autoPrice, err := core.NewAutoConvertedPrice(currency, pricePerPixel, func(price *big.Rat) {
if broadcasterEthAddr == "default" {
glog.Infof("Price: %v wei per pixel\n ", price.FloatString(3))
} else {
glog.Infof("Price: %v wei per pixel for broadcaster %v", price.FloatString(3), broadcasterEthAddr)
}
})
if err != nil {
return fmt.Errorf("error converting price: %v", err)
}
s.LivepeerNode.SetBasePrice(broadcasterEthAddr, autoPrice)
return nil
}
func (s *LivepeerServer) setServiceURI(client eth.LivepeerEthClient, serviceURI string) error {
parsedURI, err := url.Parse(serviceURI)
if err != nil {
glog.Error(err)
return err
}
glog.Infof("Storing service URI %v in service registry...", serviceURI)
tx, err := client.SetServiceURI(serviceURI)
if err != nil {
glog.Error(err)
return err
}
err = client.CheckTx(tx)
if err != nil {
glog.Error(err)
return err
}
// Avoids a restart if only the host has been changed.
// If the port has been changed, a restart is still needed.
s.LivepeerNode.SetServiceURI(parsedURI)
return nil
}
func (s *LivepeerServer) setMaxFaceValueHandler() http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if s.LivepeerNode.NodeType == core.OrchestratorNode {
maxfacevalue := r.FormValue("maxfacevalue")
if maxfacevalue != "" {
mfv, success := new(big.Int).SetString(maxfacevalue, 10)
if success {
s.LivepeerNode.SetMaxFaceValue(mfv)
respondOk(w, []byte("ticket max face value set"))
glog.Infof("Max ticket face value set to: %v", maxfacevalue)
} else {
respond400(w, "maxfacevalue not set to number")
}
} else {
respond400(w, "need to set 'maxfacevalue'")
}
} else {
respond400(w, "node must be orchestrator node to set maxfacevalue")
}
})
}
func (s *LivepeerServer) setPriceForBroadcaster() http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
if s.LivepeerNode.NodeType == core.OrchestratorNode {
pricePerUnitStr := r.FormValue("pricePerUnit")
pixelsPerUnitStr := r.FormValue("pixelsPerUnit")
currency := r.FormValue("currency")
broadcasterEthAddr := r.FormValue("broadcasterEthAddr")
err := s.setOrchestratorPriceInfo(broadcasterEthAddr, pricePerUnitStr, pixelsPerUnitStr, currency)
if err == nil {
respondOk(w, []byte(fmt.Sprintf("Price per pixel set to %s wei for %s pixels for broadcaster %s\n", pricePerUnitStr, pixelsPerUnitStr, broadcasterEthAddr)))
} else {
respond400(w, err.Error())
}
} else {
respond400(w, "Node must be orchestrator node to set price for broadcaster")
}
})
}
func (s *LivepeerServer) setMaxSessions() http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
frmMaxSessions := r.FormValue("maxSessions")
if frmMaxSessions == "auto" {
s.LivepeerNode.AutoSessionLimit = true
s.LivepeerNode.SetMaxSessions(s.LivepeerNode.GetCurrentCapacity())
respondOk(w, []byte("Max sessions set to auto\n"))
} else if maxSessions, err := strconv.Atoi(frmMaxSessions); err == nil {
if maxSessions > 0 {
s.LivepeerNode.AutoSessionLimit = false
s.LivepeerNode.SetMaxSessions(maxSessions)
respondOk(w, []byte(fmt.Sprintf("Max sessions set to %d\n", maxSessions)))
} else {
respond400(w, "Max Sessions must be 'auto' or greater than zero")
}
} else {
respond400(w, err.Error())
}
})
}
// Bond, withdraw, reward
func bondHandler(client eth.LivepeerEthClient) http.Handler {
return mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
amountStr := r.FormValue("amount")
amount, err := common.ParseBigInt(amountStr)
if err != nil {
respond400(w, err.Error())
return
}
toAddr := r.FormValue("toAddr")
tx, err := client.Bond(amount, ethcommon.HexToAddress(toAddr))
if err != nil {
respond400(w, err.Error())
return
}
err = client.CheckTx(tx)
if err != nil {
respond500(w, err.Error())
return
}
respondOk(w, nil)
}))
}
func rebondHandler(client eth.LivepeerEthClient) http.Handler {
return mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
unbondingLockIDStr := r.FormValue("unbondingLockId")
unbondingLockID, err := common.ParseBigInt(unbondingLockIDStr)
if err != nil {
glog.Errorf("Cannot convert unbondingLockId: %v", err)
return
}
var tx *ethtypes.Transaction
toAddr := r.FormValue("toAddr")
if toAddr != "" {
tx, err = client.RebondFromUnbonded(ethcommon.HexToAddress(toAddr), unbondingLockID)
} else {
tx, err = client.Rebond(unbondingLockID)
}
if err != nil {
respond400(w, err.Error())
return
}
err = client.CheckTx(tx)
if err != nil {
respond500(w, err.Error())
return
}
respondOk(w, nil)
}))
}
func unbondHandler(client eth.LivepeerEthClient) http.Handler {
return mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
amountStr := r.FormValue("amount")
amount, err := common.ParseBigInt(amountStr)
if err != nil {
respond400(w, err.Error())
return
}
tx, err := client.Unbond(amount)
if err != nil {
respond500(w, err.Error())
return
}
err = client.CheckTx(tx)
if err != nil {
respond500(w, err.Error())
return
}
respondOk(w, nil)
}))
}
func withdrawStakeHandler(client eth.LivepeerEthClient) http.Handler {
return mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
unbondingLockIDStr := r.FormValue("unbondingLockId")
unbondingLockID, err := common.ParseBigInt(unbondingLockIDStr)
if err != nil {
respond400(w, fmt.Sprintf("Cannot convert unbondingLockId: %v", err))
return
}
tx, err := client.WithdrawStake(unbondingLockID)
if err != nil {
respond500(w, err.Error())
return
}
err = client.CheckTx(tx)
if err != nil {
respond500(w, err.Error())
return
}
respondOk(w, nil)
}))
}
func unbondingLocksHandler(client eth.LivepeerEthClient, db *common.DB) http.Handler {
return mustHaveDb(db, mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
dAddr := client.Account().Address
d, err := client.GetDelegator(dAddr)
if err != nil {
respond500(w, err.Error())
return
}
// Query for local IDs
unbondingLockIDs, err := db.UnbondingLockIDs()
if err != nil {
respond500(w, err.Error())
return
}
if big.NewInt(int64(len(unbondingLockIDs))).Cmp(d.NextUnbondingLockId) < 0 {
// Generate all possible IDs
missingUnbondingLockIDs := make(map[*big.Int]bool)
for i := big.NewInt(0); i.Cmp(d.NextUnbondingLockId) < 0; i = new(big.Int).Add(i, big.NewInt(1)) {
missingUnbondingLockIDs[i] = true
}
// Use local IDs to determine which IDs are missing
for _, id := range unbondingLockIDs {
delete(missingUnbondingLockIDs, id)
}
// Update unbonding locks in local DB if necessary
for id := range missingUnbondingLockIDs {
lock, err := client.GetDelegatorUnbondingLock(dAddr, id)
if err != nil {
glog.Error(err)
continue
}
// If lock has been used (i.e. withdrawRound == 0) do not insert into DB
// Note: We do not know what block at which a lock was used when querying the contract directly (as opposed to using events)
// As a result, instead of having a lock entry in the DB with the usedBlock column set, we do not insert a lock entry at all
if lock.WithdrawRound.Cmp(big.NewInt(0)) == 1 {
if err := db.InsertUnbondingLock(id, dAddr, lock.Amount, lock.WithdrawRound); err != nil {
glog.Error(err)
continue
}
}
}
}
var currentRound *big.Int
withdrawableStr := r.FormValue("withdrawable")
if withdrawable, err := strconv.ParseBool(withdrawableStr); withdrawable {
currentRound, err = client.CurrentRound()
if err != nil {
glog.Error(err)
return
}
}
unbondingLocks, err := db.UnbondingLocks(currentRound)
if err != nil {
glog.Error(err)
return
}
respondJson(w, unbondingLocks)
})))
}
func withdrawFeesHandler(client eth.LivepeerEthClient, db ChainIdGetter) http.Handler {
return mustHaveDb(db, mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
// for L1 contracts backwards-compatibility
var tx *ethtypes.Transaction
isL1Network, err := isL1Network(db)
if err != nil {
respond500(w, err.Error())
return
}
if isL1Network {
// L1 contracts
tx, err = client.L1WithdrawFees()
if err != nil {
respond500(w, fmt.Sprintf("could not execute WithdrawFees: %v", err))
return
}
} else {
// L2 contracts
amountStr := r.FormValue("amount")
if amountStr == "" {
respond400(w, "missing form param: amount")
return
}
amount, err := common.ParseBigInt(amountStr)
if err != nil {
respond400(w, fmt.Sprintf("invalid amount: %v", err))
return
}
tx, err = client.WithdrawFees(client.Account().Address, amount)
if err != nil {
respond500(w, fmt.Sprintf("could not execute WithdrawFees: %v", err))
return
}
}
err = client.CheckTx(tx)
if err != nil {
respond500(w, fmt.Sprintf("could not execute WithdrawFees: %v", err))
return
}
respondOk(w, nil)
})))
}
func claimEarningsHandler(client eth.LivepeerEthClient) http.Handler {
return mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
claim := func() error {
init, err := client.CurrentRoundInitialized()
if err != nil {
glog.Errorf("Trying to claim but round not initialized.")
return err
}
if !init {
return errors.New("Round not initialized")
}
currRound, err := client.CurrentRound()
if err != nil {
return err
}
tx, err := client.ClaimEarnings(currRound)
if err != nil {
return err
}
return client.CheckTx(tx)
}
if err := backoff.Retry(claim, backoff.WithMaxRetries(backoff.NewConstantBackOff(time.Second*15), 5)); err != nil {
respond500(w, fmt.Sprintf("Error claiming earnings: %v", err))
return
}
respondOk(w, nil)
}))
}
func delegatorInfoHandler(client eth.LivepeerEthClient) http.Handler {
return mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
d, err := client.GetDelegator(client.Account().Address)
if err != nil {
respond500(w, err.Error())
return
}
respondJson(w, d)
}))
}
func orchestratorEarningPoolsForRoundHandler(client eth.LivepeerEthClient) http.Handler {
return mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
roundStr := r.URL.Query().Get("round")
round, err := common.ParseBigInt(roundStr)
if err != nil {
respond400(w, err.Error())
return
}
tp, err := client.GetTranscoderEarningsPoolForRound(client.Account().Address, round)
if err != nil {
respond500(w, err.Error())
return
}
respondJson(w, tp)
}))
}
func registeredOrchestratorsHandler(client eth.LivepeerEthClient, db *common.DB) http.Handler {
return mustHaveDb(db, mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
orchestrators, err := client.TranscoderPool()
if err != nil {
respond500(w, err.Error())
return
}
for _, o := range orchestrators {
dbO, err := db.SelectOrchs(&common.DBOrchFilter{
Addresses: []ethcommon.Address{o.Address},
})
if err != nil {
glog.Errorf("unable to get orchestrators from DB err=%q", err)
continue
}
if len(dbO) == 0 {
o.PricePerPixel = big.NewRat(0, 1)
continue
}
o.PricePerPixel = common.FixedToPrice(dbO[0].PricePerPixel)
}
respondJson(w, orchestrators)
})))
}
func rewardHandler(client eth.LivepeerEthClient) http.Handler {
return mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
glog.Infof("Calling reward")
tx, err := client.Reward()
if err != nil {
respond500(w, fmt.Sprintf("Error calling reward: %v", err))
return
}
if err := client.CheckTx(tx); err != nil {
respond500(w, fmt.Sprintf("Error calling reward: %v", err))
return
}
glog.Infof("Call to reward successful")
respondOk(w, nil)
}))
}
// Protocol parameters
func protocolParametersHandler(client eth.LivepeerEthClient, db ChainIdGetter) http.Handler {
return mustHaveDb(db, mustHaveClient(client, http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
numActiveOrchestrators, err := client.GetTranscoderPoolMaxSize()
if err != nil {
respond500(w, err.Error())
return
}
roundLength, err := client.RoundLength()
if err != nil {
respond500(w, err.Error())
return
}
roundLockAmount, err := client.RoundLockAmount()
if err != nil {
respond500(w, err.Error())
return
}
unbondingPeriod, err := client.UnbondingPeriod()
if err != nil {
respond500(w, err.Error())
return
}
inflation, err := client.Inflation()
if err != nil {
respond500(w, err.Error())
return
}
inflationChange, err := client.InflationChange()
if err != nil {
respond500(w, err.Error())
return
}
targetBondingRate, err := client.TargetBondingRate()
if err != nil {
respond500(w, err.Error())
return
}
totalBonded, err := client.GetTotalBonded()
if err != nil {
respond500(w, err.Error())
return
}
isL1Network, err := isL1Network(db)
if err != nil {
glog.Error(err)
return
}
var totalSupply *big.Int
if isL1Network {
totalSupply, err = client.TotalSupply()
} else {
totalSupply, err = client.GetGlobalTotalSupply()
}
if err != nil {
respond500(w, err.Error())
return
}
paused, err := client.Paused()
if err != nil {
respond500(w, err.Error())
return
}