remove depedency

This commit is contained in:
Ian Norden 2020-06-29 16:07:28 -05:00
parent a48e10ac7a
commit 7819e16027
5 changed files with 91 additions and 758 deletions

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@ -1,10 +1,11 @@
# eth-ipfs-state-validator
Uses [pg-ipfs-ethdb](https://github.com/vulcanize/pg-ipfs-ethdb) to validate completeness of Ethereum state data on PG-IPFS
Uses [pg-ipfs-ethdb](https://github.com/vulcanize/pg-ipfs-ethdb) to validate completeness of Ethereum state data on IPFS
## Background
State data on Ethereum is stored in the form of [Modified Merkle Patricia Tries](https://eth.wiki/en/fundamentals/patricia-tree).
State data on Ethereum takes the form of [Modified Merkle Patricia Tries](https://eth.wiki/en/fundamentals/patricia-tree).
On disk each unique node of a trie is stored as a key-value pair between the Keccak256 hash of the RLP-encoded node and the RLP-encoded node.
To prove the existence of a specific node in an MMPT with a known root hash, one provides a list of all of the nodes along the path descending
from the root node to the node in question. To validate the completeness of a state database- to confirm every node for a state and/or storage trie(s) is present
in a database- requires traversing the entire trie (or linked set of tries) and confirming the presence of every node in the database.

1
go.mod
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@ -11,6 +11,5 @@ require (
github.com/sirupsen/logrus v1.6.0
github.com/spf13/cobra v1.0.0
github.com/spf13/viper v1.7.0
github.com/vulcanize/ipfs-blockchain-watcher v0.0.11-alpha
github.com/vulcanize/pg-ipfs-ethdb v0.0.2-alpha
)

737
go.sum

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74
pkg/database.go Normal file
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// VulcanizeDB
// Copyright © 2019 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program 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 Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package validator
import (
"fmt"
"github.com/jmoiron/sqlx"
"github.com/spf13/viper"
)
// Env variables
const (
DATABASE_NAME = "DATABASE_NAME"
DATABASE_HOSTNAME = "DATABASE_HOSTNAME"
DATABASE_PORT = "DATABASE_PORT"
DATABASE_USER = "DATABASE_USER"
DATABASE_PASSWORD = "DATABASE_PASSWORD"
)
// NewDB returns a new sqlx.DB from config/cli/env variables
func NewDB() (*sqlx.DB, error) {
c := Config{}
c.Init()
return sqlx.Connect("postgres", c.ConnString())
}
type Config struct {
Hostname string
Name string
User string
Password string
Port int
}
func (c *Config) ConnString() string {
if len(c.User) > 0 && len(c.Password) > 0 {
return fmt.Sprintf("postgresql://%s:%s@%s:%d/%s?sslmode=disable",
c.User, c.Password, c.Hostname, c.Port, c.Name)
}
if len(c.User) > 0 && len(c.Password) == 0 {
return fmt.Sprintf("postgresql://%s@%s:%d/%s?sslmode=disable",
c.User, c.Hostname, c.Port, c.Name)
}
return fmt.Sprintf("postgresql://%s:%d/%s?sslmode=disable", c.Hostname, c.Port, c.Name)
}
func (c *Config) Init() {
viper.BindEnv("database.name", DATABASE_NAME)
viper.BindEnv("database.hostname", DATABASE_HOSTNAME)
viper.BindEnv("database.port", DATABASE_PORT)
viper.BindEnv("database.user", DATABASE_USER)
viper.BindEnv("database.password", DATABASE_PASSWORD)
c.Name = viper.GetString("database.name")
c.Hostname = viper.GetString("database.hostname")
c.Port = viper.GetInt("database.port")
c.User = viper.GetString("database.user")
c.Password = viper.GetString("database.password")
}

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@ -1,32 +0,0 @@
// VulcanizeDB
// Copyright © 2020 Vulcanize
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// This program 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 Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package validator
import (
"github.com/jmoiron/sqlx"
_ "github.com/lib/pq" //postgres driver
"github.com/vulcanize/ipfs-blockchain-watcher/pkg/config"
)
// NewDB returns a new sqlx.DB from env variables
func NewDB() (*sqlx.DB, error) {
c := config.Database{}
c.Init()
connectStr := config.DbConnectionString(c)
return sqlx.Connect("postgres", connectStr)
}