202 lines
6.9 KiB
Go
202 lines
6.9 KiB
Go
// Copyright 2017 The go-ethereum Authors
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// This file is part of go-ethereum.
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//
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// go-ethereum is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// go-ethereum is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
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package main
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import (
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"bytes"
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"fmt"
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"html/template"
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"math/rand"
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"path/filepath"
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"strconv"
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"strings"
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"github.com/ethereum/go-ethereum/log"
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)
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// walletDockerfile is the Dockerfile required to run a web wallet.
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var walletDockerfile = `
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FROM puppeth/wallet:latest
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ADD genesis.json /genesis.json
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RUN \
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echo 'node server.js &' > wallet.sh && \
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echo 'geth --cache 512 init /genesis.json' >> wallet.sh && \
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echo $'exec geth --networkid {{.NetworkID}} --port {{.NodePort}} --bootnodes {{.Bootnodes}} --ethstats \'{{.Ethstats}}\' --cache=512 --rpc --rpcaddr=0.0.0.0 --rpccorsdomain "*" --rpcvhosts "*"' >> wallet.sh
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RUN \
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sed -i 's/PuppethNetworkID/{{.NetworkID}}/g' dist/js/etherwallet-master.js && \
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sed -i 's/PuppethNetwork/{{.Network}}/g' dist/js/etherwallet-master.js && \
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sed -i 's/PuppethDenom/{{.Denom}}/g' dist/js/etherwallet-master.js && \
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sed -i 's/PuppethHost/{{.Host}}/g' dist/js/etherwallet-master.js && \
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sed -i 's/PuppethRPCPort/{{.RPCPort}}/g' dist/js/etherwallet-master.js
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ENTRYPOINT ["/bin/sh", "wallet.sh"]
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`
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// walletComposefile is the docker-compose.yml file required to deploy and
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// maintain a web wallet.
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var walletComposefile = `
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version: '2'
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services:
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wallet:
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build: .
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image: {{.Network}}/wallet
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container_name: {{.Network}}_wallet_1
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ports:
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- "{{.NodePort}}:{{.NodePort}}"
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- "{{.NodePort}}:{{.NodePort}}/udp"
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- "{{.RPCPort}}:8545"{{if not .VHost}}
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- "{{.WebPort}}:80"{{end}}
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volumes:
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- {{.Datadir}}:/root/.ethereum
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environment:
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- NODE_PORT={{.NodePort}}/tcp
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- STATS={{.Ethstats}}{{if .VHost}}
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- VIRTUAL_HOST={{.VHost}}
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- VIRTUAL_PORT=80{{end}}
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logging:
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driver: "json-file"
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options:
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max-size: "1m"
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max-file: "10"
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restart: always
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`
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// deployWallet deploys a new web wallet container to a remote machine via SSH,
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// docker and docker-compose. If an instance with the specified network name
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// already exists there, it will be overwritten!
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func deployWallet(client *sshClient, network string, bootnodes []string, config *walletInfos, nocache bool) ([]byte, error) {
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// Generate the content to upload to the server
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workdir := fmt.Sprintf("%d", rand.Int63())
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files := make(map[string][]byte)
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dockerfile := new(bytes.Buffer)
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template.Must(template.New("").Parse(walletDockerfile)).Execute(dockerfile, map[string]interface{}{
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"Network": strings.ToTitle(network),
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"Denom": strings.ToUpper(network),
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"NetworkID": config.network,
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"NodePort": config.nodePort,
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"RPCPort": config.rpcPort,
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"Bootnodes": strings.Join(bootnodes, ","),
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"Ethstats": config.ethstats,
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"Host": client.address,
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})
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files[filepath.Join(workdir, "Dockerfile")] = dockerfile.Bytes()
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composefile := new(bytes.Buffer)
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template.Must(template.New("").Parse(walletComposefile)).Execute(composefile, map[string]interface{}{
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"Datadir": config.datadir,
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"Network": network,
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"NodePort": config.nodePort,
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"RPCPort": config.rpcPort,
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"VHost": config.webHost,
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"WebPort": config.webPort,
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"Ethstats": config.ethstats[:strings.Index(config.ethstats, ":")],
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})
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files[filepath.Join(workdir, "docker-compose.yaml")] = composefile.Bytes()
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files[filepath.Join(workdir, "genesis.json")] = config.genesis
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// Upload the deployment files to the remote server (and clean up afterwards)
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if out, err := client.Upload(files); err != nil {
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return out, err
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}
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defer client.Run("rm -rf " + workdir)
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// Build and deploy the boot or seal node service
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if nocache {
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return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s build --pull --no-cache && docker-compose -p %s up -d --force-recreate --timeout 60", workdir, network, network))
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}
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return nil, client.Stream(fmt.Sprintf("cd %s && docker-compose -p %s up -d --build --force-recreate --timeout 60", workdir, network))
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}
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// walletInfos is returned from a web wallet status check to allow reporting
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// various configuration parameters.
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type walletInfos struct {
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genesis []byte
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network int64
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datadir string
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ethstats string
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nodePort int
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rpcPort int
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webHost string
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webPort int
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}
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// Report converts the typed struct into a plain string->string map, containing
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// most - but not all - fields for reporting to the user.
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func (info *walletInfos) Report() map[string]string {
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report := map[string]string{
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"Data directory": info.datadir,
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"Ethstats username": info.ethstats,
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"Node listener port ": strconv.Itoa(info.nodePort),
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"RPC listener port ": strconv.Itoa(info.rpcPort),
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"Website address ": info.webHost,
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"Website listener port ": strconv.Itoa(info.webPort),
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}
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return report
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}
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// checkWallet does a health-check against web wallet server to verify whether
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// it's running, and if yes, whether it's responsive.
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func checkWallet(client *sshClient, network string) (*walletInfos, error) {
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// Inspect a possible web wallet container on the host
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infos, err := inspectContainer(client, fmt.Sprintf("%s_wallet_1", network))
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if err != nil {
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return nil, err
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}
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if !infos.running {
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return nil, ErrServiceOffline
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}
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// Resolve the port from the host, or the reverse proxy
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webPort := infos.portmap["80/tcp"]
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if webPort == 0 {
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if proxy, _ := checkNginx(client, network); proxy != nil {
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webPort = proxy.port
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}
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}
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if webPort == 0 {
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return nil, ErrNotExposed
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}
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// Resolve the host from the reverse-proxy and the config values
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host := infos.envvars["VIRTUAL_HOST"]
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if host == "" {
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host = client.server
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}
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// Run a sanity check to see if the devp2p and RPC ports are reachable
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nodePort := infos.portmap[infos.envvars["NODE_PORT"]]
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if err = checkPort(client.server, nodePort); err != nil {
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log.Warn(fmt.Sprintf("Wallet devp2p port seems unreachable"), "server", client.server, "port", nodePort, "err", err)
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}
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rpcPort := infos.portmap["8545/tcp"]
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if err = checkPort(client.server, rpcPort); err != nil {
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log.Warn(fmt.Sprintf("Wallet RPC port seems unreachable"), "server", client.server, "port", rpcPort, "err", err)
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}
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// Assemble and return the useful infos
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stats := &walletInfos{
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datadir: infos.volumes["/root/.ethereum"],
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nodePort: nodePort,
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rpcPort: rpcPort,
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webHost: host,
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webPort: webPort,
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ethstats: infos.envvars["STATS"],
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}
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return stats, nil
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}
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