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// Copyright 2017 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// go-ethereum is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package main
import (
"encoding/json"
"fmt"
"net/http"
"github.com/ethereum/go-ethereum/accounts/keystore"
"github.com/ethereum/go-ethereum/log"
)
// deployFaucet queries the user for various input on deploying a faucet, after
// which it executes it.
func (w *wizard) deployFaucet() {
// Select the server to interact with
server := w.selectServer()
if server == "" {
return
}
client := w.servers[server]
// Retrieve any active faucet configurations from the server
existed := true
infos, err := checkFaucet(client, w.network)
if err != nil {
infos = &faucetInfos{
node: &nodeInfos{portFull: 30303, peersTotal: 25},
port: 80,
host: client.server,
amount: 1,
minutes: 1440,
tiers: 3,
}
existed = false
}
infos.node.genesis, _ = json.MarshalIndent(w.conf.Genesis, "", " ")
infos.node.network = w.conf.Genesis.Config.ChainId.Int64()
// Figure out which port to listen on
fmt.Println()
fmt.Printf("Which port should the faucet listen on? (default = %d)\n", infos.port)
infos.port = w.readDefaultInt(infos.port)
// Figure which virtual-host to deploy ethstats on
if infos.host, err = w.ensureVirtualHost(client, infos.port, infos.host); err != nil {
log.Error("Failed to decide on faucet host", "err", err)
return
}
// Port and proxy settings retrieved, figure out the funding amount per period configurations
fmt.Println()
fmt.Printf("How many Ethers to release per request? (default = %d)\n", infos.amount)
infos.amount = w.readDefaultInt(infos.amount)
fmt.Println()
fmt.Printf("How many minutes to enforce between requests? (default = %d)\n", infos.minutes)
infos.minutes = w.readDefaultInt(infos.minutes)
fmt.Println()
fmt.Printf("How many funding tiers to feature (x2.5 amounts, x3 timeout)? (default = %d)\n", infos.tiers)
infos.tiers = w.readDefaultInt(infos.tiers)
if infos.tiers == 0 {
log.Error("At least one funding tier must be set")
return
}
// Accessing GitHub gists requires API authorization, retrieve it
if infos.githubUser != "" {
fmt.Println()
fmt.Printf("Reuse previous (%s) GitHub API authorization (y/n)? (default = yes)\n", infos.githubUser)
if w.readDefaultString("y") != "y" {
infos.githubUser, infos.githubToken = "", ""
}
}
if infos.githubUser == "" {
// No previous authorization (or new one requested)
fmt.Println()
fmt.Println("Which GitHub user to verify Gists through? (default = none = rate-limited API)")
infos.githubUser = w.readDefaultString("")
if infos.githubUser == "" {
log.Warn("Funding requests via GitHub will be heavily rate-limited")
} else {
fmt.Println()
fmt.Println("What is the GitHub personal access token of the user? (won't be echoed)")
infos.githubToken = w.readPassword()
// Do a sanity check query against github to ensure it's valid
req, _ := http.NewRequest("GET", "https://api.github.com/user", nil)
req.SetBasicAuth(infos.githubUser, infos.githubToken)
res, err := http.DefaultClient.Do(req)
if err != nil {
log.Error("Failed to verify GitHub authentication", "err", err)
return
}
defer res.Body.Close()
var msg struct {
Login string `json:"login"`
Message string `json:"message"`
}
if err = json.NewDecoder(res.Body).Decode(&msg); err != nil {
log.Error("Failed to decode authorization response", "err", err)
return
}
if msg.Login != infos.githubUser {
log.Error("GitHub authorization failed", "user", infos.githubUser, "message", msg.Message)
return
}
}
}
// Accessing the reCaptcha service requires API authorizations, request it
if infos.captchaToken != "" {
fmt.Println()
fmt.Println("Reuse previous reCaptcha API authorization (y/n)? (default = yes)")
if w.readDefaultString("y") != "y" {
infos.captchaToken, infos.captchaSecret = "", ""
}
}
if infos.captchaToken == "" {
// No previous authorization (or old one discarded)
fmt.Println()
fmt.Println("Enable reCaptcha protection against robots (y/n)? (default = no)")
if w.readDefaultString("n") == "n" {
log.Warn("Users will be able to requests funds via automated scripts")
} else {
// Captcha protection explicitly requested, read the site and secret keys
fmt.Println()
fmt.Printf("What is the reCaptcha site key to authenticate human users?\n")
infos.captchaToken = w.readString()
fmt.Println()
fmt.Printf("What is the reCaptcha secret key to verify authentications? (won't be echoed)\n")
infos.captchaSecret = w.readPassword()
}
}
// Figure out where the user wants to store the persistent data
fmt.Println()
if infos.node.datadir == "" {
fmt.Printf("Where should data be stored on the remote machine?\n")
infos.node.datadir = w.readString()
} else {
fmt.Printf("Where should data be stored on the remote machine? (default = %s)\n", infos.node.datadir)
infos.node.datadir = w.readDefaultString(infos.node.datadir)
}
// Figure out which port to listen on
fmt.Println()
fmt.Printf("Which TCP/UDP port should the light client listen on? (default = %d)\n", infos.node.portFull)
infos.node.portFull = w.readDefaultInt(infos.node.portFull)
// Set a proper name to report on the stats page
fmt.Println()
if infos.node.ethstats == "" {
fmt.Printf("What should the node be called on the stats page?\n")
infos.node.ethstats = w.readString() + ":" + w.conf.ethstats
} else {
fmt.Printf("What should the node be called on the stats page? (default = %s)\n", infos.node.ethstats)
infos.node.ethstats = w.readDefaultString(infos.node.ethstats) + ":" + w.conf.ethstats
}
// Load up the credential needed to release funds
if infos.node.keyJSON != "" {
if key, err := keystore.DecryptKey([]byte(infos.node.keyJSON), infos.node.keyPass); err != nil {
infos.node.keyJSON, infos.node.keyPass = "", ""
} else {
fmt.Println()
fmt.Printf("Reuse previous (%s) funding account (y/n)? (default = yes)\n", key.Address.Hex())
if w.readDefaultString("y") != "y" {
infos.node.keyJSON, infos.node.keyPass = "", ""
}
}
}
for i := 0; i < 3 && infos.node.keyJSON == ""; i++ {
fmt.Println()
fmt.Println("Please paste the faucet's funding account key JSON:")
infos.node.keyJSON = w.readJSON()
fmt.Println()
fmt.Println("What's the unlock password for the account? (won't be echoed)")
infos.node.keyPass = w.readPassword()
if _, err := keystore.DecryptKey([]byte(infos.node.keyJSON), infos.node.keyPass); err != nil {
log.Error("Failed to decrypt key with given passphrase")
infos.node.keyJSON = ""
infos.node.keyPass = ""
}
}
// Check if the user wants to run the faucet in debug mode (noauth)
noauth := "n"
if infos.noauth {
noauth = "y"
}
fmt.Println()
fmt.Printf("Permit non-authenticated funding requests (y/n)? (default = %v)\n", infos.noauth)
infos.noauth = w.readDefaultString(noauth) != "n"
// Try to deploy the faucet server on the host
nocache := false
if existed {
fmt.Println()
fmt.Printf("Should the faucet be built from scratch (y/n)? (default = no)\n")
nocache = w.readDefaultString("n") != "n"
}
if out, err := deployFaucet(client, w.network, w.conf.bootLight, infos, nocache); err != nil {
log.Error("Failed to deploy faucet container", "err", err)
if len(out) > 0 {
fmt.Printf("%s\n", out)
}
return
}
// All ok, run a network scan to pick any changes up
w.networkStats()
}
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