hushd

Reviewed-on: #24

Makefile

@@ -1,4 +1,4 @@
-# Copyright (c) 2021 Jahway603 & The Hush Developers
+# Copyright (c) 2021-2022 Jahway603 & The Hush Developers
 # Released under the GPLv3
 #
 # Hush Lightwalletd Makefile

README.md

@@ -125,7 +125,7 @@ These are the current different command line options for lightwalletd:
 | -cache-size| 40000 		  | number of blocks to hold in the cache |
 
 ## Support
-For support or other questions, join us on [Telegram](https://hush.is/telegram), or tweet at [@MyHushTeam](https://twitter.com/MyHushTeam), or toot at our [Mastodon](https://fosstodon.org/@myhushteam) or join [Telegram Support](https://hush.is/telegram_support).
+For support or other questions, join us on [Telegram](https://hush.is/telegram), or toot at our [Mastodon](https://fosstodon.org/@myhushteam) or join [Telegram Support](https://hush.is/telegram_support).
 
 ## License
 GPLv3 or later

cmd/server/main.go

@@ -223,6 +223,11 @@ func main() {
 	// Register service
 	walletrpc.RegisterCompactTxStreamerServer(server, service)
 
+
+    // Initialize mempool monitor
+	// exitMempool := make(chan bool)
+	// common.StartMempoolMonitor(cache, exitMempool)
+
 	// Start listening
 	listener, err := net.Listen("tcp", opts.bindAddr)
 	if err != nil {
@@ -237,6 +242,7 @@ func main() {
 	signal.Notify(signals, syscall.SIGINT, syscall.SIGTERM)
 	go func() {
 		s := <-signals
+        // exitMempool <- true
 		log.WithFields(logrus.Fields{
 			"signal": s.String(),
 		}).Info("caught signal, stopping gRPC server")

cmd/server/main_test.go

@@ -1,4 +1,4 @@
-// Copyright 2021 The Hush developers
+// Copyright 2021-2022 The Hush developers
 // Released under the GPLv3
 package main
 

common/cache.go

@@ -18,6 +18,8 @@ type BlockCache struct {
 
 	FirstBlock int
 	LastBlock  int
+	NextBlock  int     // height of the first block not in the cache
+
 
 	m map[int]*BlockCacheEntry
 
@@ -110,6 +112,17 @@ func (c *BlockCache) Get(height int) *walletrpc.CompactBlock {
 	return serialized
 }
 
+// GetLatestHeight returns the height of the most recent block, or -1
+// if the cache is empty.
+func (c *BlockCache) GetLatestHeight() int {
+	c.mutex.RLock()
+	defer c.mutex.RUnlock()
+	if c.FirstBlock == c.NextBlock {
+		return -1
+	}
+	return c.NextBlock - 1
+}
+
 func (c *BlockCache) GetLatestBlock() int {
 	c.mutex.RLock()
 	defer c.mutex.RUnlock()

common/common.go

@@ -9,12 +9,20 @@ import (
 	"time"
 
 	"git.hush.is/hush/lightwalletd/parser"
-	"git.hush.is/hush/lightwalletd/walletrpc"
+    // duke master = mempool branch
+	"git.hush.is/duke/lightwalletd/walletrpc"
+	//"git.hush.is/hush/lightwalletd/walletrpc"
 	"github.com/btcsuite/btcd/rpcclient"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
 )
 
+
+// RawRequest points to the function to send a an RPC request to hushd;
+// in production, it points to btcsuite/btcd/rpcclient/rawrequest.go:RawRequest();
+// in unit tests it points to a function to mock RPCs to hushd
+var RawRequest func(method string, params []json.RawMessage) (json.RawMessage, error)
+
 func GetSaplingInfo(rpcClient *rpcclient.Client) (int, int, string, string, int, int, int, error) {
 	result, rpcErr := rpcClient.RawRequest("getblockchaininfo", make([]json.RawMessage, 0))
 

common/mempool.go

@@ -0,0 +1,181 @@
+package common
+
+import (
+	"encoding/hex"
+	"encoding/json"
+	"sync"
+	"sync/atomic"
+	"time"
+
+    log "github.com/sirupsen/logrus"
+
+    // Go is too dumb to import from branches so use upstream for now
+	//"github.com/zcash/lightwalletd/walletrpc"
+    "git.hush.is/hush/lightwalletd/walletrpc"
+)
+
+var (
+	// List of all mempool transactions
+	txns map[string]*walletrpc.RawTransaction = make(map[string]*walletrpc.RawTransaction)
+
+	// List of all clients waiting to recieve mempool txns
+	clients []chan<- *walletrpc.RawTransaction
+
+	// Last height of the blocks. If this changes, then close all the clients and flush the mempool
+	lastHeight int
+
+	// A pointer to the blockcache
+	blockcache *BlockCache
+
+	// Mutex to lock the above 2 structs
+	lock sync.Mutex
+
+	// Since the mutex doesn't have a "try_lock" method, we'll have to improvize with this
+	refreshing int32 = 0
+)
+
+// AddNewClient adds a new client to the list of clients to notify for mempool txns
+func AddNewClient(client chan<- *walletrpc.RawTransaction) {
+	lock.Lock()
+	defer lock.Unlock()
+
+	//Log.Infoln("Adding new client, sending ", len(txns), " transactions")
+
+	// Also send all pending mempool txns
+	for _, rtx := range txns {
+		if client != nil {
+			client <- rtx
+		}
+	}
+
+	if client != nil {
+		clients = append(clients, client)
+	}
+}
+
+// RefreshMempoolTxns gets all new mempool txns and sends any new ones to waiting clients
+func refreshMempoolTxns() error {
+	log.Infoln("Refreshing mempool")
+
+	// First check if another refresh is running, if it is, just return
+	if !atomic.CompareAndSwapInt32(&refreshing, 0, 1) {
+		log.Warnln("Another refresh in progress, returning")
+		return nil
+	}
+
+	// Set refreshing to 0 when we exit
+	defer func() {
+		refreshing = 0
+	}()
+
+	// Check if the blockchain has changed, and if it has, then clear everything
+
+	lock.Lock()
+	defer lock.Unlock()
+
+	if lastHeight < blockcache.GetLatestHeight() {
+		log.Infoln("Block height changed, clearing everything")
+
+		// Flush all the clients
+		for _, client := range clients {
+			if client != nil {
+				close(client)
+			}
+		}
+
+		clients = make([]chan<- *walletrpc.RawTransaction, 0)
+
+		// Clear txns
+		txns = make(map[string]*walletrpc.RawTransaction)
+
+		lastHeight = blockcache.GetLatestHeight()
+	}
+
+	var mempoolList []string
+	params := make([]json.RawMessage, 0)
+	result, rpcErr := RawRequest("getrawmempool", params)
+	if rpcErr != nil {
+		return rpcErr
+	}
+	err := json.Unmarshal(result, &mempoolList)
+	if err != nil {
+		return err
+	}
+
+	//println("getrawmempool size ", len(mempoolList))
+
+	// Fetch all new mempool txns and add them into `newTxns`
+	for _, txidstr := range mempoolList {
+		if _, ok := txns[txidstr]; !ok {
+			txidJSON, err := json.Marshal(txidstr)
+			if err != nil {
+				return err
+			}
+			// The "0" is because we only need the raw hex, which is returned as
+			// just a hex string, and not even a json string (with quotes).
+			params := []json.RawMessage{txidJSON, json.RawMessage("0")}
+			result, rpcErr := RawRequest("getrawtransaction", params)
+			if rpcErr != nil {
+				// Not an error; mempool transactions can disappear
+				continue
+			}
+			// strip the quotes
+			var txStr string
+			err = json.Unmarshal(result, &txStr)
+			if err != nil {
+				return err
+			}
+
+			// conver to binary
+			txBytes, err := hex.DecodeString(txStr)
+			if err != nil {
+				return err
+			}
+
+			newRtx := &walletrpc.RawTransaction{
+				Data:   txBytes,
+				Height: uint64(lastHeight),
+			}
+
+			// Notify waiting clients
+			for _, client := range clients {
+				if client != nil {
+					client <- newRtx
+				}
+			}
+
+			log.Infoln("Adding new mempool txid", txidstr, " sending to ", len(clients), " clients")
+			txns[txidstr] = newRtx
+		}
+	}
+
+	return nil
+}
+
+// StartMempoolMonitor starts monitoring the mempool
+func StartMempoolMonitor(cache *BlockCache, done <-chan bool) {
+	go func() {
+		ticker := time.NewTicker(2 * time.Second)
+		blockcache = cache
+		lastHeight = blockcache.GetLatestHeight()
+
+		for {
+			select {
+			case <-ticker.C:
+				go func() {
+					//Log.Infoln("Ticker triggered")
+					err := refreshMempoolTxns()
+					if err != nil {
+						log.Errorln("Mempool refresh error:", err.Error())
+					}
+				}()
+
+			case <-done:
+				for _, client := range clients {
+					close(client)
+				}
+				return
+			}
+		}
+	}()
+}

doc/examples/README.md

@@ -0,0 +1,21 @@
+# Example lightwalletd configurations
+
+# Table of contents
+1. [Why](#why)
+2. [With Nginx](#with-nginx)
+3. [No Web](#no-web)
+4. [Apache](#apache)
+
+## Why
+The [Hush Lightwalletd](https://git.hush.is/hush/lightwalletd/) can be configured in numerous different ways depending upon your specific setup. Here I will cover some example configurations and include shell scripts you can modify for your needs once you decide how you want to configure it.
+
+## With Nginx
+For Nginx specifics, refer to the [lightwalletd README](https://git.hush.is/hush/lightwalletd/src/branch/master/README.md) to setup your SSL cert config.
+
+Then you can use this [example shell script](run_lightwalletd_nginx.sh) to run lightwalletd with an nginx reverse proxy frontend. In the script you have to change the hostname and username before running it.
+
+## No Web
+Here we run lightwalletd without any web servers (no nginx) and as a stand-alone service managing the SSL cert config internally. Use this [example shell script](run_lightwalletd_no-web.sh) to run lightwalletd stand-alone.
+
+## Apache
+I do not know Apache, but you are welcome to contribute your example configuration if you are using it as a reverse proxy.

doc/examples/run_lightwalletd_nginx.sh

@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+# Purpose: simple run script for Hush lightwalletd with an nginx reverse proxy frontend
+
+# Setup: Change host, change username, and then run this to start lightwalletd
+
+### Change below to your lightwalletd public server name ###
+host=your.server.name.com
+# port 9067 is the default lightwalletd port
+port=9067
+host_and_port="${host}:${port}"
+
+### Change below to the username running lightwalletd ###
+# this user account must have access to the HUSH3.conf
+username=jahway603
+hush_conf="/home/${username}/.hush/HUSH3/HUSH3.conf"
+
+echo "starting lightwalletd on port $port..."
+lightwalletd -bind-addr "$host_and_port" -conf-file "$hush_conf" -no-tls
+# let's go brandon

doc/examples/run_lightwalletd_no-web.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+# Purpose: simple run script for Hush lightwalletd with NO web frontend
+
+# Setup: Change username, setup your SSL cert config, and then run this to start lightwalletd
+
+# had to use this IP when using acme.sh instead of certbot
+ip=0.0.0.0
+# port 9067 is the default lightwalletd port
+port=9067
+ip_and_port="${ip}:${port}"
+
+### Change below to the username running lightwalletd ###
+# this user account must have access to the HUSH3.conf
+username=jahway603
+hush_conf="/home/${username}/.hush/HUSH3/HUSH3.conf"
+
+### Setup SSL cert config below ###
+# Change below to your lightwalletd public server name
+host=your.server.name.com
+# Change to your SSL cert, certbot does one thing, acme.sh does another, YMMV
+ssl_cert="/etc/nginx/ssl/${host}/fullchain/${host}.pem"
+ssl_key="/etc/nginx/ssl/${host}/key/${host}.key.pem"
+
+echo "starting lightwalletd on port $port..."
+lightwalletd -bind-addr "$ip_and_port" -conf-file "$hush_conf" -tls-cert "$ssl_cert" --tls-key "$ssl_key"
+# let's go brandon

frontend/service.go

@@ -14,9 +14,20 @@ import (
 	"github.com/sirupsen/logrus"
 
 	"git.hush.is/hush/lightwalletd/common"
-	"git.hush.is/hush/lightwalletd/walletrpc"
+    // go should be able to import branches! 
+    // duke master = mempool branch
+	"git.hush.is/duke/lightwalletd/walletrpc"
+	//"git.hush.is/hush/lightwalletd/walletrpc"
+	"git.hush.is/hush/lightwalletd/parser"
 )
 
+type lwdStreamer struct {
+	cache      *common.BlockCache
+	chainName  string
+	pingEnable bool
+	walletrpc.UnimplementedCompactTxStreamerServer
+}
+
 var (
 	ErrUnspecified = errors.New("request for unspecified identifier")
 )
@@ -331,3 +342,154 @@ func (s *SqlStreamer) SendTransaction(ctx context.Context, rawtx *walletrpc.RawT
 		ErrorMessage: errMsg,
 	}, nil
 }
+
+
+func (s *lwdStreamer) GetMempoolStream(_empty *walletrpc.Empty, resp walletrpc.CompactTxStreamer_GetMempoolStreamServer) error {
+	ch := make(chan *walletrpc.RawTransaction, 200)
+	go common.AddNewClient(ch)
+
+	for {
+		select {
+		case rtx, more := <-ch:
+			if !more || rtx == nil {
+				return nil
+			}
+
+			if resp.Send(rtx) != nil {
+				return nil
+			}
+		// Timeout after 5 mins
+		case <-time.After(5 * time.Minute):
+			return nil
+		}
+	}
+}
+
+// Key is 32-byte txid (as a 64-character string), data is pointer to compact tx.
+var mempoolMap *map[string]*walletrpc.CompactTx
+var mempoolList []string
+
+// Last time we pulled a copy of the mempool from zcashd.
+var lastMempool time.Time
+
+func (s *lwdStreamer) GetMempoolTx(exclude *walletrpc.Exclude, resp walletrpc.CompactTxStreamer_GetMempoolTxServer) error {
+	if time.Now().Sub(lastMempool).Seconds() >= 2 {
+		lastMempool = time.Now()
+		// Refresh our copy of the mempool.
+		params := make([]json.RawMessage, 0)
+		result, rpcErr := common.RawRequest("getrawmempool", params)
+		if rpcErr != nil {
+			return rpcErr
+		}
+		err := json.Unmarshal(result, &mempoolList)
+		if err != nil {
+			return err
+		}
+		newmempoolMap := make(map[string]*walletrpc.CompactTx)
+		if mempoolMap == nil {
+			mempoolMap = &newmempoolMap
+		}
+		for _, txidstr := range mempoolList {
+			if ctx, ok := (*mempoolMap)[txidstr]; ok {
+				// This ctx has already been fetched, copy pointer to it.
+				newmempoolMap[txidstr] = ctx
+				continue
+			}
+			txidJSON, err := json.Marshal(txidstr)
+			if err != nil {
+				return err
+			}
+			// The "0" is because we only need the raw hex, which is returned as
+			// just a hex string, and not even a json string (with quotes).
+			params := []json.RawMessage{txidJSON, json.RawMessage("0")}
+			result, rpcErr := common.RawRequest("getrawtransaction", params)
+			if rpcErr != nil {
+				// Not an error; mempool transactions can disappear
+				continue
+			}
+			// strip the quotes
+			var txStr string
+			err = json.Unmarshal(result, &txStr)
+			if err != nil {
+				return err
+			}
+
+			// conver to binary
+			txBytes, err := hex.DecodeString(txStr)
+			if err != nil {
+				return err
+			}
+			tx := parser.NewTransaction()
+			txdata, err := tx.ParseFromSlice(txBytes)
+			if len(txdata) > 0 {
+				return errors.New("extra data deserializing transaction")
+			}
+			newmempoolMap[txidstr] = &walletrpc.CompactTx{}
+			if tx.HasSaplingElements() {
+				newmempoolMap[txidstr] = tx.ToCompact( /* height */ 0)
+			}
+		}
+		mempoolMap = &newmempoolMap
+	}
+	excludeHex := make([]string, len(exclude.Txid))
+	for i := 0; i < len(exclude.Txid); i++ {
+		excludeHex[i] = hex.EncodeToString(parser.Reverse(exclude.Txid[i]))
+	}
+	for _, txid := range MempoolFilter(mempoolList, excludeHex) {
+		tx := (*mempoolMap)[txid]
+		if len(tx.Hash) > 0 {
+			err := resp.Send(tx)
+			if err != nil {
+				return err
+			}
+		}
+	}
+	return nil
+}
+
+// Return the subset of items that aren't excluded, but
+// if more than one item matches an exclude entry, return
+// all those items.
+func MempoolFilter(items, exclude []string) []string {
+	sort.Slice(items, func(i, j int) bool {
+		return items[i] < items[j]
+	})
+	sort.Slice(exclude, func(i, j int) bool {
+		return exclude[i] < exclude[j]
+	})
+	// Determine how many items match each exclude item.
+	nmatches := make([]int, len(exclude))
+	// is the exclude string less than the item string?
+	lessthan := func(e, i string) bool {
+		l := len(e)
+		if l > len(i) {
+			l = len(i)
+		}
+		return e < i[0:l]
+	}
+	ei := 0
+	for _, item := range items {
+		for ei < len(exclude) && lessthan(exclude[ei], item) {
+			ei++
+		}
+		match := ei < len(exclude) && strings.HasPrefix(item, exclude[ei])
+		if match {
+			nmatches[ei]++
+		}
+	}
+
+	// Add each item that isn't uniquely excluded to the results.
+	tosend := make([]string, 0)
+	ei = 0
+	for _, item := range items {
+		for ei < len(exclude) && lessthan(exclude[ei], item) {
+			ei++
+		}
+		match := ei < len(exclude) && strings.HasPrefix(item, exclude[ei])
+		if !match || nmatches[ei] > 1 {
+			tosend = append(tosend, item)
+		}
+	}
+	return tosend
+}
+

go.mod

@@ -3,15 +3,10 @@ module git.hush.is/hush/lightwalletd
 go 1.12
 
 require (
-	cloud.google.com/go v0.46.3 // indirect
-	github.com/btcsuite/btcd v0.0.0-20190926002857-ba530c4abb35
+	github.com/btcsuite/btcd v0.20.1-beta
 	github.com/btcsuite/goleveldb v1.0.0 // indirect
 	github.com/creack/pty v1.1.9 // indirect
-	github.com/golang/groupcache v0.0.0-20191002201903-404acd9df4cc // indirect
-	github.com/golang/protobuf v1.3.2
-	github.com/google/go-cmp v0.3.1 // indirect
-	github.com/google/pprof v0.0.0-20190930153522-6ce02741cba3 // indirect
-	github.com/gopherjs/gopherjs v0.0.0-20190915194858-d3ddacdb130f // indirect
+	github.com/golang/protobuf v1.5.2
 	github.com/hashicorp/golang-lru v0.5.3 // indirect
 	github.com/jessevdk/go-flags v1.4.0 // indirect
 	github.com/jstemmer/go-junit-report v0.9.1 // indirect
@@ -22,29 +17,16 @@ require (
 	github.com/onsi/ginkgo v1.10.2 // indirect
 	github.com/onsi/gomega v1.7.0 // indirect
 	github.com/pebbe/zmq4 v1.0.0 // indirect
-	github.com/pkg/errors v0.8.1
+	github.com/pkg/errors v0.9.1
 	github.com/rogpeppe/go-internal v1.5.0 // indirect
 	github.com/sirupsen/logrus v1.4.2
 	github.com/smartystreets/assertions v1.0.1 // indirect
-	github.com/smartystreets/goconvey v0.0.0-20190731233626-505e41936337 // indirect
 	github.com/stretchr/objx v0.2.0 // indirect
-	github.com/stretchr/testify v1.4.0 // indirect
-	go.opencensus.io v0.22.1 // indirect
-	golang.org/x/crypto v0.0.0-20191002192127-34f69633bfdc // indirect
-	golang.org/x/exp v0.0.0-20191002040644-a1355ae1e2c3 // indirect
+	github.com/zcash/lightwalletd v0.4.12
 	golang.org/x/image v0.0.0-20190910094157-69e4b8554b2a // indirect
-	golang.org/x/lint v0.0.0-20190930215403-16217165b5de // indirect
 	golang.org/x/mobile v0.0.0-20191002175909-6d0d39b2ca82 // indirect
-	golang.org/x/net v0.0.0-20191007182048-72f939374954
-	golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e // indirect
-	golang.org/x/sys v0.0.0-20191008105621-543471e840be // indirect
-	golang.org/x/time v0.0.0-20190921001708-c4c64cad1fd0 // indirect
-	golang.org/x/tools v0.0.0-20191007185444-6536af71d98a // indirect
-	google.golang.org/api v0.10.0 // indirect
+	golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4
 	google.golang.org/appengine v1.6.5 // indirect
-	google.golang.org/genproto v0.0.0-20191007204434-a023cd5227bd // indirect
-	google.golang.org/grpc v1.24.0
-	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
-	gopkg.in/ini.v1 v1.48.0
-	gopkg.in/yaml.v2 v2.2.4 // indirect
+	google.golang.org/grpc v1.44.0
+	gopkg.in/ini.v1 v1.51.0
 )

go.sum

@@ -5,19 +5,43 @@ cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6A
 cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
 cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
 cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
+cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To=
+cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4=
+cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M=
+cloud.google.com/go v0.56.0/go.mod h1:jr7tqZxxKOVYizybht9+26Z/gUq7tiRzu+ACVAMbKVk=
 cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o=
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@@ -141,15 +296,36 @@ github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXf
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
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 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
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 golang.org/x/crypto v0.0.0-20190829043050-9756ffdc2472 h1:Gv7RPwsi3eZ2Fgewe3CBsuOebPwO27PoXzRpJPsvSSM=
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@@ -158,6 +334,10 @@ golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392 h1:ACG4HJsFiNMf47Y4PeRoeb
 golang.org/x/crypto v0.0.0-20190923035154-9ee001bba392/go.mod h1:/lpIB1dKB+9EgE3H3cr1v9wB50oz8l4C4h62xy7jSTY=
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@@ -166,6 +346,12 @@ golang.org/x/exp v0.0.0-20190829153037-c13cbed26979/go.mod h1:86+5VVa7VpoJ4kLfm0
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@@ -177,6 +363,10 @@ golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHl
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@@ -185,10 +375,15 @@ golang.org/x/mobile v0.0.0-20190923204409-d3ece3b6da5f/go.mod h1:p895TfNkDgPEmEQ
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@@ -197,8 +392,11 @@ golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn
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@@ -209,10 +407,24 @@ golang.org/x/net v0.0.0-20190923162816-aa69164e4478 h1:l5EDrHhldLYb3ZRHDUhXF7Om7
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@@ -220,11 +432,16 @@ golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJ
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@@ -233,6 +450,7 @@ golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -242,16 +460,44 @@ golang.org/x/sys v0.0.0-20190912141932-bc967efca4b8/go.mod h1:h1NjWce9XRLGQEsW7w
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 google.golang.org/api v0.7.0/go.mod h1:WtwebWUNSVBH/HAw79HIFXZNqEvBhG+Ra+ax0hx3E3M=
 google.golang.org/api v0.8.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
 google.golang.org/api v0.9.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
 google.golang.org/api v0.10.0/go.mod h1:o4eAsZoiT+ibD93RtjEohWalFOjRDx6CVaqeizhEnKg=
+google.golang.org/api v0.13.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
+google.golang.org/api v0.14.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
+google.golang.org/api v0.15.0/go.mod h1:iLdEw5Ide6rF15KTC1Kkl0iskquN2gFfn9o9XIsbkAI=
+google.golang.org/api v0.17.0/go.mod h1:BwFmGc8tA3vsd7r/7kR8DY7iEEGSU04BFxCo5jP/sfE=
+google.golang.org/api v0.18.0/go.mod h1:BwFmGc8tA3vsd7r/7kR8DY7iEEGSU04BFxCo5jP/sfE=
+google.golang.org/api v0.20.0/go.mod h1:BwFmGc8tA3vsd7r/7kR8DY7iEEGSU04BFxCo5jP/sfE=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
 google.golang.org/appengine v1.5.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
@@ -304,10 +578,25 @@ google.golang.org/genproto v0.0.0-20190916214212-f660b8655731 h1:Phvl0+G5t5k/EUF
 google.golang.org/genproto v0.0.0-20190916214212-f660b8655731/go.mod h1:IbNlFCBrqXvoKpeg0TB2l7cyZUmoaFKYIwrEpbDKLA8=
 google.golang.org/genproto v0.0.0-20191007204434-a023cd5227bd h1:84VQPzup3IpKLxuIAZjHMhVjJ8fZ4/i3yUnj3k6fUdw=
 google.golang.org/genproto v0.0.0-20191007204434-a023cd5227bd/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
+google.golang.org/genproto v0.0.0-20191108220845-16a3f7862a1a/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
+google.golang.org/genproto v0.0.0-20191115194625-c23dd37a84c9/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
+google.golang.org/genproto v0.0.0-20191216164720-4f79533eabd1/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
+google.golang.org/genproto v0.0.0-20191230161307-f3c370f40bfb/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
+google.golang.org/genproto v0.0.0-20200115191322-ca5a22157cba/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
+google.golang.org/genproto v0.0.0-20200122232147-0452cf42e150/go.mod h1:n3cpQtvxv34hfy77yVDNjmbRyujviMdxYliBSkLhpCc=
+google.golang.org/genproto v0.0.0-20200204135345-fa8e72b47b90/go.mod h1:GmwEX6Z4W5gMy59cAlVYjN9JhxgbQH6Gn+gFDQe2lzA=
+google.golang.org/genproto v0.0.0-20200212174721-66ed5ce911ce/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
+google.golang.org/genproto v0.0.0-20200224152610-e50cd9704f63/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
+google.golang.org/genproto v0.0.0-20200331122359-1ee6d9798940/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
+google.golang.org/genproto v0.0.0-20200513103714-09dca8ec2884/go.mod h1:55QSHmfGQM9UVYDPBsyGGes0y52j32PQ3BqQfXhyH3c=
+google.golang.org/genproto v0.0.0-20200526211855-cb27e3aa2013/go.mod h1:NbSheEEYHJ7i3ixzK3sjbqSGDJWnxyFXZblF3eUsNvo=
+google.golang.org/genproto v0.0.0-20210406143921-e86de6bf7a46 h1:f4STrQZf8jaowsiUitigvrqMCCM4QJH1A2JCSI7U1ow=
+google.golang.org/genproto v0.0.0-20210406143921-e86de6bf7a46/go.mod h1:P3QM42oQyzQSnHPnZ/vqoCdDmzH28fzWByN9asMeM8A=
 google.golang.org/grpc v1.17.0 h1:TRJYBgMclJvGYn2rIMjj+h9KtMt5r1Ij7ODVRIZkwhk=
 google.golang.org/grpc v1.17.0/go.mod h1:6QZJwpn2B+Zp71q/5VxRsJ6NXXVCE5NRUHRo+f3cWCs=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
+google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
 google.golang.org/grpc v1.23.0 h1:AzbTB6ux+okLTzP8Ru1Xs41C303zdcfEht7MQnYJt5A=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
@@ -315,9 +604,35 @@ google.golang.org/grpc v1.23.1 h1:q4XQuHFC6I28BKZpo6IYyb3mNO+l7lSOxRuYTCiDfXk=
 google.golang.org/grpc v1.23.1/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.24.0 h1:vb/1TCsVn3DcJlQ0Gs1yB1pKI6Do2/QNwxdKqmc/b0s=
 google.golang.org/grpc v1.24.0/go.mod h1:XDChyiUovWa60DnaeDeZmSW86xtLtjtZbwvSiRnRtcA=
+google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
+google.golang.org/grpc v1.26.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
+google.golang.org/grpc v1.27.0/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
+google.golang.org/grpc v1.27.1/go.mod h1:qbnxyOmOxrQa7FizSgH+ReBfzJrCY1pSN7KXBS8abTk=
+google.golang.org/grpc v1.28.0/go.mod h1:rpkK4SK4GF4Ach/+MFLZUBavHOvF2JJB5uozKKal+60=
+google.golang.org/grpc v1.33.1/go.mod h1:fr5YgcSWrqhRRxogOsw7RzIpsmvOZ6IcH4kBYTpR3n0=
+google.golang.org/grpc v1.36.0/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
+google.golang.org/grpc v1.36.1/go.mod h1:qjiiYl8FncCW8feJPdyg3v6XW24KsRHe+dy9BAGRRjU=
+google.golang.org/grpc v1.44.0 h1:weqSxi/TMs1SqFRMHCtBgXRs8k3X39QIDEZ0pRcttUg=
+google.golang.org/grpc v1.44.0/go.mod h1:k+4IHHFw41K8+bbowsex27ge2rCb65oeWqe4jJ590SU=
+google.golang.org/protobuf v0.0.0-20200109180630-ec00e32a8dfd/go.mod h1:DFci5gLYBciE7Vtevhsrf46CRTquxDuWsQurQQe4oz8=
+google.golang.org/protobuf v0.0.0-20200221191635-4d8936d0db64/go.mod h1:kwYJMbMJ01Woi6D6+Kah6886xMZcty6N08ah7+eCXa0=
+google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQJ+fmap5saPgwCLgHXTUD7jkjRqWcaiX5VyM=
+google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
+google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
+google.golang.org/protobuf v1.22.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
+google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
+google.golang.org/protobuf v1.25.1-0.20200805231151-a709e31e5d12/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
+google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
+google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+google.golang.org/protobuf v1.27.1 h1:SnqbnDw1V7RiZcXPx5MEeqPv2s79L9i7BJUlG/+RurQ=
+google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
+gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/ini.v1 v1.41.0 h1:Ka3ViY6gNYSKiVy71zXBEqKplnV35ImDLVG+8uoIklE=
@@ -326,16 +641,28 @@ gopkg.in/ini.v1 v1.46.0 h1:VeDZbLYGaupuvIrsYCEOe/L/2Pcs5n7hdO1ZTjporag=
 gopkg.in/ini.v1 v1.46.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/ini.v1 v1.48.0 h1:URjZc+8ugRY5mL5uUeQH/a63JcHwdX9xZaWvmNWD7z8=
 gopkg.in/ini.v1 v1.48.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/ini.v1 v1.51.0 h1:AQvPpx3LzTDM0AjnIRlVFwFFGC+npRopjZxLJj6gdno=
+gopkg.in/ini.v1 v1.51.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
+gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
+gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.5/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210105161348-2e78108cf5f8/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
+honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
+honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
+rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
+rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=

start.sh

@@ -1,12 +1,15 @@
 #!/bin/bash
-# Copyright 2020-2021 The Hush Developers
+# Copyright 2020-2022 The Hush Developers
 # Released under GPLv3
 
 # Description: This script would be used with a NGINX reverse proxy
 #	you can choose either IPv4 or IPv6
 
 # using ipv4 localhost
+#./lightwalletd -bind-addr localhost:9067 -conf-file ~/.hush/HUSH3/HUSH3.conf -no-tls
+
+# using legacy directory
 #./lightwalletd -bind-addr localhost:9067 -conf-file ~/.komodo/HUSH3/HUSH3.conf -no-tls
 
 # using ipv6 localhost
-./lightwalletd -bind-addr ip6-localhost:9067 -conf-file ~/.komodo/HUSH3/HUSH3.conf -no-tls
+./lightwalletd -bind-addr ip6-localhost:9067 -conf-file ~/.hush/HUSH3/HUSH3.conf -no-tls

util/build-debian-package-SBC.sh

@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Copyright (c) 2021 The Hush developers
+# Copyright (c) 2021-2022 The Hush developers
 # Distributed under the GPLv3 software license, see the accompanying
 # file LICENSE or https://www.gnu.org/licenses/gpl-3.0.en.html
 #

util/build-debian-package.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright (c) 2021 The Hush developers
+# Copyright (c) 2021-2022 The Hush developers
 # Distributed under the GPLv3 software license, see the accompanying
 # file LICENSE or https://www.gnu.org/licenses/gpl-3.0.en.html
 #
@@ -16,11 +16,11 @@ if ! [ -x "$(command -v ./lightwalletd)" ]; then
 fi
 
 # Check if lintian is installed and exit if it is not
-#if ! [ -x "$(command -v lintian)" ]; then
-#  echo 'Error: lintian is not installed yet. Consult your Linux version package manager...' >&2
-#  echo ""
-#  exit 1
-#fi
+if ! [ -x "$(command -v lintian)" ]; then
+  echo 'Error: lintian is not installed yet. Consult your Linux version package manager...' >&2
+  echo ""
+  exit 1
+fi
 
 echo "Let There Be Hush Lightwalletd Debian Packages!"
 echo ""
@@ -92,7 +92,6 @@ fakeroot dpkg-deb --build $BUILD_DIR
 cp $BUILD_PATH/$PACKAGE_NAME-$PACKAGE_VERSION-$ARCH.deb $SRC_PATH
 shasum -a 256 $SRC_PATH/$PACKAGE_NAME-$PACKAGE_VERSION-$ARCH.deb
 # Analyze with Lintian, reporting bugs and policy violations
-# Arch does not have lintian, as it's a Debian package, so commenting this out
-# To-DO - test on Debian/Ubuntu, create AUR lintian package
-#lintian -i $SRC_PATH/$PACKAGE_NAME-$PACKAGE_VERSION-$ARCH.deb
+# Arch does not have lintian, as it's a Debian package, so run this on Debian stuff
+lintian -i $SRC_PATH/$PACKAGE_NAME-$PACKAGE_VERSION-$ARCH.deb
 exit 0

util/build.sh

@@ -1,14 +1,24 @@
 #!/usr/bin/env bash
-# Copyright 2021 The Hush Developers
+# Copyright 2021-2022 The Hush Developers
 # Distributed under the GPLv3 software license, see the accompanying
 # file LICENSE or https://www.gnu.org/licenses/gpl-3.0.en.html
 
 # Purpose: Script to build Hush lightwalletd on x86 64-bit arch
+## Usage: ./util/build.sh
 
+# Check if go is installed on system...
+v=`go version | { read _ _ v _; echo ${v#go}; }`
+function version { echo "$@" | awk -F. '{ printf("%d%03d%03d%03d\n", $1,$2,$3,$4); }'; }
 # Check if go is installed on system and exits if it is not
 if ! [ -x "$(command -v go)" ]; then
   echo 'Error: go is not installed. Install go and try again.' >&2
   exit 1
+# If go is installed, then check system for at least version 1.13.0
+elif [ $(version $v) -lt $(version "1.13.0") ]; then
+  echo 'Error: the go version you have installed requires at least version 1.13, which your system does not have installed. Install a newer version of go and try again.' >&2
+  echo ''
+  echo "Try out gobrew to install a newer version than what your OS package manager supplies."
+  exit 1
 fi
 
 echo ""
@@ -23,10 +33,23 @@ echo "+------'+------'+------'+------'+------'+------'+------'+------'+------'+-
 
 # now to compiling...
 echo ""
-echo "You have go installed, so starting to compile Hush lightwalletd for you..."
+echo "You have at least go 1.13.0 installed, so starting to compile Hush lightwalletd for you..."
 cd `pwd`/cmd/server
-go build -o lightwalletd main.go
-mv lightwalletd `pwd`/../../lightwalletd
-echo ""
-echo "Hush lightwalletd is now compiled for you. Enjoy and reach out if you need support."
-echo "For options, run ./lightwalletd --help"
+# Add diff build flags per golang versions [ Search -mod= here https://go.dev/ref/mod ] 
+if [ $(version $v) -lt $(version "1.16.0") ]; then
+  go build -o lightwalletd main.go
+else
+  go build -mod=mod -o lightwalletd main.go
+fi
+
+# check if compile was success
+if [ $? -ne 0 ]; then
+  echo ""
+  echo 'Error: Something went wrong and lightwalletd did not build successfully... Please reach out if you need support.' >&2
+  exit 1
+else
+  mv lightwalletd `pwd`/../../lightwalletd
+  echo ""
+  echo "Hush lightwalletd is now compiled for you. Enjoy and reach out if you need support."
+  echo "For options, run ./lightwalletd --help"
+fi

util/build_arm.sh

@@ -1,15 +1,24 @@
 #!/usr/bin/env bash
-# Copyright 2021 The Hush Developers
+# Copyright 2021-2022 The Hush Developers
 # Distributed under the GPLv3 software license, see the accompanying
 # file LICENSE or https://www.gnu.org/licenses/gpl-3.0.en.html
 #
 # Purpose: Script to build the ARM or aarch64 architecture,
 #		which is what the PinePhone boards are running
 
+# Check if go is installed on system...
+v=`go version | { read _ _ v _; echo ${v#go}; }`
+function version { echo "$@" | awk -F. '{ printf("%d%03d%03d%03d\n", $1,$2,$3,$4); }'; }
 # Check if go is installed on system and exits if it is not
 if ! [ -x "$(command -v go)" ]; then
   echo 'Error: go is not installed. Install go and try again.' >&2
   exit 1
+# If go is installed, then check system for at least version 1.13.0
+elif [ $(version $v) -lt $(version "1.13.0") ]; then
+  echo 'Error: the go version you have installed requires at least version 1.13, which your system does not have installed. Install a newer version of go and try again.' >&2
+  echo ''
+  echo "Try out gobrew to install a newer version than what your OS package manager supplies."
+  exit 1
 fi
 
 echo ""
@@ -24,11 +33,25 @@ echo "+------'+------'+------'+------'+------'+------'+------'+------'+------'+-
 
 # now to compiling...
 echo ""
-echo "You have go installed, so starting to compile Hush lightwalletd for you..."
+echo "You have at least go 1.13.0 installed, so starting to compile Hush lightwalletd for you..."
 cd `pwd`/cmd/server
-env GOOS=linux GOARCH=arm64 go build -o lightwalletd_aarch64 main.go
-mv lightwalletd_aarch64 lightwalletd
-mv lightwalletd `pwd`/../../lightwalletd
-echo ""
-echo "Hush lightwalletd is now compiled for your ARM farm or Pine Rock64. Enjoy and reach out if you need support."
-echo "For options, run ./lightwalletd --help"
+# Add diff build flags per golang versions [ Search -mod= here https://go.dev/ref/mod ] 
+if [ $(version $v) -lt $(version "1.16.0") ]; then
+  env GOOS=linux GOARCH=arm64 go build -o lightwalletd_aarch64 main.go
+else
+  env GOOS=linux GOARCH=arm64 go build -mod=mod -o lightwalletd_aarch64 main.go
+fi
+
+# check if compile was success
+if [ $? -ne 0 ]; then
+  echo ""
+  echo 'Error: Something went wrong and lightwalletd did not build successfully... Please reach out if you need support.' >&2
+  exit 1
+else
+  mv lightwalletd_aarch64 lightwalletd
+  mv lightwalletd `pwd`/../../lightwalletd
+  echo ""
+  echo "Hush lightwalletd is now compiled for your ARM farm or Pine Rock64. Enjoy and reach out if you need support."
+  echo "For options, run ./lightwalletd --help"
+fi
+

walletrpc/service.proto

@@ -90,4 +90,21 @@ service CompactTxStreamer {
     // Misc
     rpc GetLightdInfo(Empty) returns (LightdInfo) {}
     rpc GetCoinsupply(Empty) returns (Coinsupply) {}
+
+    // Mempool
+
+    // Return the compact transactions currently in the mempool; the results
+    // can be a few seconds out of date. If the Exclude list is empty, return
+    // all transactions; otherwise return all *except* those in the Exclude list
+    // (if any); this allows the client to avoid receiving transactions that it
+    // already has (from an earlier call to this rpc). The transaction IDs in the
+    // Exclude list can be shortened to any number of bytes to make the request
+    // more bandwidth-efficient; if two or more transactions in the mempool
+    // match a shortened txid, they are all sent (none is excluded). Transactions
+    // in the exclude list that don't exist in the mempool are ignored.
+    rpc GetMempoolTx(Exclude) returns (stream CompactTx) {}
+
+    // Return a stream of current Mempool transactions. This will keep the output stream open while
+    // there are mempool transactions. It will close the returned stream when a new block is mined.
+    rpc GetMempoolStream(Empty) returns (stream RawTransaction) {}
 }