Add litecoin blockbook implementation

bchain/coins/blockchain.go

@@ -7,6 +7,7 @@ import (
 	"blockbook/bchain/coins/btg"
 	"blockbook/bchain/coins/dash"
 	"blockbook/bchain/coins/eth"
+	"blockbook/bchain/coins/litecoin"
 	"blockbook/bchain/coins/zec"
 	"blockbook/common"
 	"context"
@@ -35,6 +36,8 @@ func init() {
 	blockChainFactories["Bgold"] = btg.NewBGoldRPC
 	blockChainFactories["Dash"] = dash.NewDashRPC
 	blockChainFactories["Dash Testnet"] = dash.NewDashRPC
+	blockChainFactories["Litecoin"] = litecoin.NewLitecoinRPC
+	blockChainFactories["Litecoin Testnet"] = litecoin.NewLitecoinRPC
 }
 
 // GetCoinNameFromConfig gets coin name from config file

bchain/coins/litecoin/litecoinparser.go

@@ -0,0 +1,66 @@
+package litecoin
+
+import (
+	"blockbook/bchain/coins/btc"
+
+	"github.com/btcsuite/btcd/chaincfg"
+	"github.com/btcsuite/btcd/wire"
+)
+
+const (
+	MainnetMagic wire.BitcoinNet = 0xdbb6c0fb
+	TestnetMagic wire.BitcoinNet = 0xf1c8d2fd
+	RegtestMagic wire.BitcoinNet = 0xdab5bffa
+)
+
+var (
+	MainNetParams chaincfg.Params
+	TestNetParams chaincfg.Params
+	RegtestParams chaincfg.Params
+)
+
+func init() {
+	MainNetParams = chaincfg.MainNetParams
+	MainNetParams.Net = MainnetMagic
+	MainNetParams.PubKeyHashAddrID = 48
+	MainNetParams.ScriptHashAddrID = 5
+	MainNetParams.Bech32HRPSegwit = "ltc"
+
+	TestNetParams = chaincfg.TestNet3Params
+	TestNetParams.Net = TestnetMagic
+	TestNetParams.PubKeyHashAddrID = 111
+	TestNetParams.ScriptHashAddrID = 196
+	TestNetParams.Bech32HRPSegwit = "tltc"
+
+	err := chaincfg.Register(&MainNetParams)
+	if err == nil {
+		err = chaincfg.Register(&TestNetParams)
+	}
+	if err != nil {
+		panic(err)
+	}
+}
+
+// LitecoinParser handle
+type LitecoinParser struct {
+	*btc.BitcoinParser
+}
+
+// NewLitecoinParser returns new LitecoinParser instance
+func NewLitecoinParser(params *chaincfg.Params, c *btc.Configuration) *LitecoinParser {
+	return &LitecoinParser{BitcoinParser: btc.NewBitcoinParser(params, c)}
+}
+
+// GetChainParams contains network parameters for the main Litecoin network,
+// the regression test Litecoin network, the test Litecoin network and
+// the simulation test Litecoin network, in this order
+func GetChainParams(chain string) *chaincfg.Params {
+	switch chain {
+	case "test":
+		return &TestNetParams
+	case "regtest":
+		return &RegtestParams
+	default:
+		return &MainNetParams
+	}
+}

bchain/coins/litecoin/litecoinrpc.go

@@ -0,0 +1,56 @@
+package litecoin
+
+import (
+	"blockbook/bchain"
+	"blockbook/bchain/coins/btc"
+	"encoding/json"
+
+	"github.com/golang/glog"
+)
+
+// LitecoinRPC is an interface to JSON-RPC bitcoind service.
+type LitecoinRPC struct {
+	*btc.BitcoinRPC
+}
+
+// NewLitecoinRPC returns new LitecoinRPC instance.
+func NewLitecoinRPC(config json.RawMessage, pushHandler func(bchain.NotificationType)) (bchain.BlockChain, error) {
+	b, err := btc.NewBitcoinRPC(config, pushHandler)
+	if err != nil {
+		return nil, err
+	}
+
+	s := &LitecoinRPC{
+		b.(*btc.BitcoinRPC),
+	}
+	s.RPCMarshaler = btc.JSONMarshalerV2{}
+
+	return s, nil
+}
+
+// Initialize initializes LitecoinRPC instance.
+func (b *LitecoinRPC) Initialize() error {
+	chainName, err := b.GetChainInfoAndInitializeMempool(b)
+	if err != nil {
+		return err
+	}
+
+	glog.Info("Chain name ", chainName)
+	params := GetChainParams(chainName)
+
+	// always create parser
+	b.Parser = NewLitecoinParser(params, b.ChainConfig)
+
+	// parameters for getInfo request
+	if params.Net == MainnetMagic {
+		b.Testnet = false
+		b.Network = "livenet"
+	} else {
+		b.Testnet = true
+		b.Network = "testnet"
+	}
+
+	glog.Info("rpc: block chain ", params.Name)
+
+	return nil
+}

build/deb/debian/blockbook-litecoin-testnet.conffiles

@@ -0,0 +1 @@
+/opt/coins/blockbook/litecoin_testnet/config/blockchaincfg.json

build/deb/debian/blockbook-litecoin-testnet.cron.daily

@@ -0,0 +1,2 @@
+#!/bin/sh
+/opt/coins/blockbook/litecoin_testnet/bin/logrotate.sh

build/deb/debian/blockbook-litecoin-testnet.dirs

@@ -0,0 +1,2 @@
+/opt/coins/data/litecoin_testnet/blockbook
+/opt/coins/blockbook/litecoin_testnet/logs

build/deb/debian/blockbook-litecoin-testnet.install

@@ -0,0 +1,6 @@
+#!/usr/bin/dh-exec
+blockbook /opt/coins/blockbook/litecoin_testnet/bin
+cert /opt/coins/blockbook/litecoin_testnet
+static /opt/coins/blockbook/litecoin_testnet
+configs/litecoin_testnet.json => /opt/coins/blockbook/litecoin_testnet/config/blockchaincfg.json
+logrotate.sh /opt/coins/blockbook/litecoin_testnet/bin

build/deb/debian/blockbook-litecoin-testnet.links

@@ -0,0 +1,2 @@
+/opt/coins/blockbook/litecoin_testnet/cert/testcert.crt /opt/coins/blockbook/litecoin_testnet/cert/blockbook.crt
+/opt/coins/blockbook/litecoin_testnet/cert/testcert.key /opt/coins/blockbook/litecoin_testnet/cert/blockbook.key

build/deb/debian/blockbook-litecoin-testnet.postinst

@@ -0,0 +1,23 @@
+#!/bin/bash
+set -e
+
+case "$1" in
+
+  configure)
+    if ! id -u blockbook-litecoin &> /dev/null
+    then
+        useradd --system -M -U blockbook-litecoin -s /bin/false
+    fi
+
+    for dir in /opt/coins/data/litecoin_testnet/blockbook /opt/coins/blockbook/litecoin_testnet/logs
+    do
+        if [ "$(stat -c '%U' $dir)" != "blockbook-litecoin" ]
+        then
+            chown -R blockbook-litecoin:blockbook-litecoin $dir
+        fi
+    done
+  ;;
+
+esac
+
+#DEBHELPER#

build/deb/debian/blockbook-litecoin-testnet.service

@@ -0,0 +1,43 @@
+# It is not recommended to modify this file in-place, because it will
+# be overwritten during package upgrades. If you want to add further
+# options or overwrite existing ones then use
+# $ systemctl edit blockbook-litecoin-testnet.service
+# See "man systemd.service" for details.
+
+[Unit]
+Description=Blockbook daemon (Litecoin testnet)
+After=network.target
+Wants=backend-litecoin-testnet.service
+
+[Service]
+ExecStart=/opt/coins/blockbook/litecoin_testnet/bin/blockbook -blockchaincfg=/opt/coins/blockbook/litecoin_testnet/config/blockchaincfg.json -datadir=/opt/coins/data/litecoin_testnet/blockbook/db -sync -httpserver=:19033 -socketio=:19133 -certfile=/opt/coins/blockbook/litecoin_testnet/cert/blockbook -explorer=https://ltc-explorer.trezor.io/ -log_dir=/opt/coins/blockbook/litecoin_testnet/logs
+User=blockbook-litecoin
+Type=simple
+Restart=on-failure
+WorkingDirectory=/opt/coins/blockbook/litecoin_testnet
+
+# Resource limits
+LimitNOFILE=500000
+
+# Hardening measures
+####################
+
+# Provide a private /tmp and /var/tmp.
+PrivateTmp=true
+
+# Mount /usr, /boot/ and /etc read-only for the process.
+ProtectSystem=full
+
+# Disallow the process and all of its children to gain
+# new privileges through execve().
+NoNewPrivileges=true
+
+# Use a new /dev namespace only populated with API pseudo devices
+# such as /dev/null, /dev/zero and /dev/random.
+PrivateDevices=true
+
+# Deny the creation of writable and executable memory mappings.
+MemoryDenyWriteExecute=true
+
+[Install]
+WantedBy=multi-user.target

build/deb/debian/blockbook-litecoin.conffiles

@@ -0,0 +1 @@
+/opt/coins/blockbook/litecoin/config/blockchaincfg.json

build/deb/debian/blockbook-litecoin.cron.daily

@@ -0,0 +1,2 @@
+#!/bin/sh
+/opt/coins/blockbook/litecoin/bin/logrotate.sh

build/deb/debian/blockbook-litecoin.dirs

@@ -0,0 +1,2 @@
+/opt/coins/data/litecoin/blockbook
+/opt/coins/blockbook/litecoin/logs

build/deb/debian/blockbook-litecoin.install

@@ -0,0 +1,6 @@
+#!/usr/bin/dh-exec
+blockbook /opt/coins/blockbook/litecoin/bin
+cert /opt/coins/blockbook/litecoin
+static /opt/coins/blockbook/litecoin
+configs/litecoin.json => /opt/coins/blockbook/litecoin/config/blockchaincfg.json
+logrotate.sh /opt/coins/blockbook/litecoin/bin

build/deb/debian/blockbook-litecoin.links

@@ -0,0 +1,2 @@
+/opt/coins/blockbook/litecoin/cert/testcert.crt /opt/coins/blockbook/litecoin/cert/blockbook.crt
+/opt/coins/blockbook/litecoin/cert/testcert.key /opt/coins/blockbook/litecoin/cert/blockbook.key

build/deb/debian/blockbook-litecoin.postinst

@@ -0,0 +1,23 @@
+#!/bin/bash
+set -e
+
+case "$1" in
+
+  configure)
+    if ! id -u blockbook-litecoin &> /dev/null
+    then
+        useradd --system -M -U blockbook-litecoin -s /bin/false
+    fi
+
+    for dir in /opt/coins/data/litecoin/blockbook /opt/coins/blockbook/litecoin/logs
+    do
+        if [ "$(stat -c '%U' $dir)" != "blockbook-litecoin" ]
+        then
+            chown -R blockbook-litecoin:blockbook-litecoin $dir
+        fi
+    done
+  ;;
+
+esac
+
+#DEBHELPER#

build/deb/debian/blockbook-litecoin.service

@@ -0,0 +1,43 @@
+# It is not recommended to modify this file in-place, because it will
+# be overwritten during package upgrades. If you want to add further
+# options or overwrite existing ones then use
+# $ systemctl edit blockbook-litecoin.service
+# See "man systemd.service" for details.
+
+[Unit]
+Description=Blockbook daemon (Litecoin mainnet)
+After=network.target
+Wants=backend-litecoin.service
+
+[Service]
+ExecStart=/opt/coins/blockbook/litecoin/bin/blockbook -blockchaincfg=/opt/coins/blockbook/litecoin/config/blockchaincfg.json -datadir=/opt/coins/data/litecoin/blockbook/db -sync -httpserver=:9033 -socketio=:9133 -certfile=/opt/coins/blockbook/litecoin/cert/blockbook -explorer=https://ltc-explorer.trezor.io/ -log_dir=/opt/coins/blockbook/litecoin/logs
+User=blockbook-litecoin
+Type=simple
+Restart=on-failure
+WorkingDirectory=/opt/coins/blockbook/litecoin
+
+# Resource limits
+LimitNOFILE=500000
+
+# Hardening measures
+####################
+
+# Provide a private /tmp and /var/tmp.
+PrivateTmp=true
+
+# Mount /usr, /boot/ and /etc read-only for the process.
+ProtectSystem=full
+
+# Disallow the process and all of its children to gain
+# new privileges through execve().
+NoNewPrivileges=true
+
+# Use a new /dev namespace only populated with API pseudo devices
+# such as /dev/null, /dev/zero and /dev/random.
+PrivateDevices=true
+
+# Deny the creation of writable and executable memory mappings.
+MemoryDenyWriteExecute=true
+
+[Install]
+WantedBy=multi-user.target

build/deb/debian/control

@@ -54,3 +54,13 @@ Package: blockbook-dash-testnet
 Architecture: amd64
 Depends: ${shlibs:Depends}, ${misc:Depends}, coreutils, passwd, findutils, psmisc, backend-dash-testnet
 Description: Satoshilabs blockbook server (Dash testnet)
+
+Package: blockbook-litecoin
+Architecture: amd64
+Depends: ${shlibs:Depends}, ${misc:Depends}, coreutils, passwd, findutils, psmisc, backend-litecoin
+Description: Satoshilabs blockbook server (Litecoin mainnet)
+
+Package: blockbook-litecoin-testnet
+Architecture: amd64
+Depends: ${shlibs:Depends}, ${misc:Depends}, coreutils, passwd, findutils, psmisc, backend-litecoin-testnet
+Description: Satoshilabs blockbook server (Litecoin testnet)

configs/litecoin.json

@@ -0,0 +1,12 @@
+{
+  "coin_name": "Litecoin",
+  "rpcURL": "http://localhost:8034",
+  "rpcUser": "rpc",
+  "rpcPass": "rpc",
+  "rpcTimeout": 25,
+  "parse": true,
+  "zeroMQBinding": "tcp://localhost:38334",
+  "mempoolWorkers": 8,
+  "mempoolSubWorkers": 2,
+  "blockAddressesToKeep": 300
+}

configs/litecoin_testnet.json

@@ -0,0 +1,12 @@
+{
+  "coin_name": "Litecoin Testnet",
+  "rpcURL": "http://localhost:18034",
+  "rpcUser": "rpc",
+  "rpcPass": "rpc",
+  "rpcTimeout": 25,
+  "parse": true,
+  "zeroMQBinding": "tcp://localhost:48334",
+  "mempoolWorkers": 8,
+  "mempoolSubWorkers": 2,
+  "blockAddressesToKeep": 300
+}