From 4fae1802a4e75be808fc5487cb6acbbf6505b440 Mon Sep 17 00:00:00 2001 From: Ian Norden Date: Sat, 30 May 2020 11:59:16 -0500 Subject: [PATCH 1/6] license --- LICENSE | 661 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 661 insertions(+) create mode 100644 LICENSE diff --git a/LICENSE b/LICENSE new file mode 100644 index 0000000..331f7cf --- /dev/null +++ b/LICENSE @@ -0,0 +1,661 @@ + GNU AFFERO GENERAL PUBLIC LICENSE + Version 3, 19 November 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The GNU Affero General Public License is a free, copyleft license for + software and other kinds of works, specifically designed to ensure + cooperation with the community in the case of network server software. + + The licenses for most software and other practical works are designed + to take away your freedom to share and change the works. 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From 510b94c14a0e4d369da347148ef6426e845b43e1 Mon Sep 17 00:00:00 2001 From: Ian Norden Date: Sat, 30 May 2020 12:09:37 -0500 Subject: [PATCH 2/6] database --- database.go | 242 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 242 insertions(+) create mode 100644 database.go diff --git a/database.go b/database.go new file mode 100644 index 0000000..e2a9eda --- /dev/null +++ b/database.go @@ -0,0 +1,242 @@ +// 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 . + +package ipfseth + +import ( + "errors" + "fmt" + "strings" + + "github.com/ethereum/go-ethereum/ethdb" + "github.com/jmoiron/sqlx" +) + +var errNotSupported = errors.New("this operation is not supported") + +var ( + hasPgStr = "SELECT exists(select 1 from public.blocks WHERE key = $1)" + getPgStr = "SELECT data FROM public.blocks WHERE key = $1" + putPgStr = "INSERT INTO public.blocks (key, data) VALUES ($1, $2) ON CONFLICT (key) DO NOTHING" + deletePgStr = "DELETE FROM public.blocks WHERE key = $1" +) + +type Database struct { + db *sqlx.DB +} + +func NewKeyValueStore(db *sqlx.DB) ethdb.KeyValueStore { + return &Database{ + db: db, + } +} + +func NewDatabase(db *sqlx.DB) ethdb.Database { + return &Database{ + db: db, + } +} + +// Has satisfies the ethdb.KeyValueReader interface +// Has retrieves if a key is present in the key-value data store +func (d *Database) Has(key []byte) (bool, error) { + mhKey, err := MultihashKeyFromKeccak256(key) + if err != nil { + return false, err + } + var exists bool + return exists, d.db.Get(&exists, hasPgStr, mhKey) +} + +// Get satisfies the ethdb.KeyValueReader interface +// Get retrieves the given key if it's present in the key-value data store +func (d *Database) Get(key []byte) ([]byte, error) { + mhKey, err := MultihashKeyFromKeccak256(key) + if err != nil { + return nil, err + } + var data []byte + return data, d.db.Get(&data, getPgStr, mhKey) +} + +// Put satisfies the ethdb.KeyValueWriter interface +// Put inserts the given value into the key-value data store +func (d *Database) Put(key []byte, value []byte) error { + mhKey, err := MultihashKeyFromKeccak256(key) + if err != nil { + return err + } + _, err = d.db.Exec(putPgStr, mhKey, value) + return err +} + +// Delete satisfies the ethdb.KeyValueWriter interface +// Delete removes the key from the key-value data store +func (d *Database) Delete(key []byte) error { + mhKey, err := MultihashKeyFromKeccak256(key) + if err != nil { + return err + } + _, err = d.db.Exec(deletePgStr, mhKey) + return err +} + +// DatabaseProperty enum type +type DatabaseProperty int + +const ( + Unknown DatabaseProperty = iota + Size + Idle + InUse + MaxIdleClosed + MaxLifetimeClosed + MaxOpenConnections + OpenConnections + WaitCount + WaitDuration +) + +// DatabasePropertyFromString helper function +func DatabasePropertyFromString(property string) (DatabaseProperty, error) { + switch strings.ToLower(property) { + case "size": + return Size, nil + case "idle": + return Idle, nil + case "inuse": + return InUse, nil + case "maxidleclosed": + return MaxIdleClosed, nil + case "maxlifetimeclosed": + return MaxLifetimeClosed, nil + case "maxopenconnections": + return MaxOpenConnections, nil + case "openconnections": + return OpenConnections, nil + case "waitcount": + return WaitCount, nil + case "waitduration": + return WaitDuration, nil + default: + return Unknown, fmt.Errorf("unknown database property") + } +} + +// Stat satisfies the ethdb.Stater interface +// Stat returns a particular internal stat of the database +func (d *Database) Stat(property string) (string, error) { + prop, err := DatabasePropertyFromString(property) + if err != nil { + return "", err + } + switch prop { + case Size: + pgStr := "SELECT pg_database_size(current_database())" + var byteSize string + return byteSize, d.db.Get(&byteSize, pgStr) + case Idle: + return string(d.db.Stats().Idle), nil + case InUse: + return string(d.db.Stats().InUse), nil + case MaxIdleClosed: + return string(d.db.Stats().MaxIdleClosed), nil + case MaxLifetimeClosed: + return string(d.db.Stats().MaxLifetimeClosed), nil + case MaxOpenConnections: + return string(d.db.Stats().MaxOpenConnections), nil + case OpenConnections: + return string(d.db.Stats().OpenConnections), nil + case WaitCount: + return string(d.db.Stats().WaitCount), nil + case WaitDuration: + return d.db.Stats().WaitDuration.String(), nil + default: + return "", fmt.Errorf("unhandled database property") + } +} + +// Compact satisfies the ethdb.Compacter interface +// Compact flattens the underlying data store for the given key range +func (d *Database) Compact(start []byte, limit []byte) error { + return errNotSupported +} + +// NewBatch satisfies the ethdb.Batcher interface +// NewBatch creates a write-only database that buffers changes to its host db +// until a final write is called +func (d *Database) NewBatch() ethdb.Batch { + return NewBatch(d.db) +} + +// NewIterator satisfies the ethdb.Iteratee interface +// it creates a binary-alphabetical iterator over a subset +// of database content with a particular key prefix, starting at a particular +// initial key (or after, if it does not exist). +// +// Note: This method assumes that the prefix is NOT part of the start, so there's +// no need for the caller to prepend the prefix to the start +func (d *Database) NewIterator(prefix []byte, start []byte) ethdb.Iterator { + return NewIterator([]byte{}, []byte{}, d.db) +} + +// Close satisfies the io.Closer interface +// Close closes the db connection +func (d *Database) Close() error { + return d.db.DB.Close() +} + +// HasAncient satisfies the ethdb.AncientReader interface +// HasAncient returns an indicator whether the specified data exists in the ancient store +func (d *Database) HasAncient(kind string, number uint64) (bool, error) { + return false, errNotSupported +} + +// Ancient satisfies the ethdb.AncientReader interface +// Ancient retrieves an ancient binary blob from the append-only immutable files +func (d *Database) Ancient(kind string, number uint64) ([]byte, error) { + return nil, errNotSupported +} + +// Ancients satisfies the ethdb.AncientReader interface +// Ancients returns the ancient item numbers in the ancient store +func (d *Database) Ancients() (uint64, error) { + return 0, errNotSupported +} + +// AncientSize satisfies the ethdb.AncientReader interface +// AncientSize returns the ancient size of the specified category +func (d *Database) AncientSize(kind string) (uint64, error) { + return 0, errNotSupported +} + +// AppendAncient satisfies the ethdb.AncientWriter interface +// AppendAncient injects all binary blobs belong to block at the end of the append-only immutable table files +func (d *Database) AppendAncient(number uint64, hash, header, body, receipt, td []byte) error { + return errNotSupported +} + +// TruncateAncients satisfies the ethdb.AncientWriter interface +// TruncateAncients discards all but the first n ancient data from the ancient store +func (d *Database) TruncateAncients(n uint64) error { + return errNotSupported +} + +// Sync satisfies the ethdb.AncientWriter interface +// Sync flushes all in-memory ancient store data to disk +func (d *Database) Sync() error { + return errNotSupported +} \ No newline at end of file From 92cdcbc6a28628834b2f03a3ad1fae2d9aef2e39 Mon Sep 17 00:00:00 2001 From: Ian Norden Date: Sat, 30 May 2020 12:09:43 -0500 Subject: [PATCH 3/6] bacther --- batch.go | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 batch.go diff --git a/batch.go b/batch.go new file mode 100644 index 0000000..533a115 --- /dev/null +++ b/batch.go @@ -0,0 +1,99 @@ +// 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 . + +package ipfseth + +import ( + "github.com/ethereum/go-ethereum/ethdb" + "github.com/jmoiron/sqlx" +) + +type Batch struct { + db *sqlx.DB + tx *sqlx.Tx + size int +} + +func NewBatch(db *sqlx.DB) ethdb.Batch { + return &Batch{ + db: db, + } +} + +// Put satisfies the ethdb.Batch interface +// Put inserts the given value into the key-value data store +func (b *Batch) Put(key []byte, value []byte) (err error) { + if b.tx == nil { + b.Reset() + } + mhKey, err := MultihashKeyFromKeccak256(key) + if err != nil { + return err + } + _, err = b.tx.Exec(putPgStr, mhKey, value) + if err != nil { + return err + } + b.size += len(value) + return nil +} + +// Delete satisfies the ethdb.Batch interface +// Delete removes the key from the key-value data store +func (b *Batch) Delete(key []byte) (err error) { + if b.tx == nil { + b.Reset() + } + mhKey, err := MultihashKeyFromKeccak256(key) + if err != nil { + return err + } + _, err = b.tx.Exec(deletePgStr, mhKey) + return err +} + +// ValueSize satisfies the ethdb.Batch interface +// ValueSize retrieves the amount of data queued up for writing +// The returned value is the total byte length of all data queued to write +func (b *Batch) ValueSize() int { + return b.size +} + +// Write satisfies the ethdb.Batch interface +// Write flushes any accumulated data to disk +func (b *Batch) Write() error { + if b.tx == nil { + return nil + } + return b.tx.Commit() +} + +// Replay satisfies the ethdb.Batch interface +// Replay replays the batch contents +func (b *Batch) Replay(w ethdb.KeyValueWriter) error { + return errNotSupported +} + +// Reset satisfies the ethdb.Batch interface +// Reset resets the batch for reuse +func (b *Batch) Reset() { + var err error + b.tx, err = b.db.Beginx() + if err != nil { + panic(err) + } + b.size = 0 +} \ No newline at end of file From 615f249df4223bd19998fe264db1efc6324daaf0 Mon Sep 17 00:00:00 2001 From: Ian Norden Date: Sat, 30 May 2020 12:09:51 -0500 Subject: [PATCH 4/6] iterator --- iterator.go | 82 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) create mode 100644 iterator.go diff --git a/iterator.go b/iterator.go new file mode 100644 index 0000000..48985f0 --- /dev/null +++ b/iterator.go @@ -0,0 +1,82 @@ +// 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 . + +package ipfseth + +import ( + "github.com/ethereum/go-ethereum/ethdb" + "github.com/jmoiron/sqlx" +) + +// We don't need these iterator interfaces right now +// Iteratee interface is only used in Geth for various tests, trie/sync_bloom.go (for fast sync), and rawdb.InspectDatabase +type Iterator struct { + db *sqlx.DB + currentKey, prefix []byte + err error +} + +func NewIterator(start, prefix []byte, db *sqlx.DB) ethdb.Iterator { + return &Iterator{ + db: db, + prefix: prefix, + currentKey: start, + } +} + +// Next satisfies the ethdb.Iterator interface +// Next moves the iterator to the next key/value pair +// It returns whether the iterator is exhausted +func (i *Iterator) Next() bool { + panic("implement me: Next") +} + +// Error satisfies the ethdb.Iterator interface +// Error returns any accumulated error +// Exhausting all the key/value pairs is not considered to be an error +func (i *Iterator) Error() error { + return i.err +} + +// Key satisfies the ethdb.Iterator interface +// Key returns the key of the current key/value pair, or nil if done +// The caller should not modify the contents of the returned slice +// and its contents may change on the next call to Next +func (i *Iterator) Key() []byte { + return i.currentKey +} + +// Value satisfies the ethdb.Iterator interface +// Value returns the value of the current key/value pair, or nil if done +// The caller should not modify the contents of the returned slice +// and its contents may change on the next call to Next +func (i *Iterator) Value() []byte { + mhKey, err := MultihashKeyFromKeccak256(i.currentKey) + if err != nil { + i.err = err + return nil + } + var data []byte + i.err = i.db.Get(&data, getPgStr, mhKey) + return data +} + +// Release satisfies the ethdb.Iterator interface +// Release releases associated resources +// Release should always succeed and can be called multiple times without causing error +func (i *Iterator) Release() { + i.db.Close() +} \ No newline at end of file From 8d3cc7f876908a72e60bcbe807e0b83428c97e2a Mon Sep 17 00:00:00 2001 From: Ian Norden Date: Sat, 30 May 2020 12:10:06 -0500 Subject: [PATCH 5/6] util; go.mod/go.sum --- go.mod | 11 +++ go.sum | 216 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ util.go | 34 +++++++++ 3 files changed, 261 insertions(+) create mode 100644 go.mod create mode 100644 go.sum create mode 100644 util.go diff --git a/go.mod b/go.mod new file mode 100644 index 0000000..7ce3937 --- /dev/null +++ b/go.mod @@ -0,0 +1,11 @@ +module github.com/vulcanize/eth-pg-ipfs-statedb + +go 1.13 + +require ( + github.com/ethereum/go-ethereum v1.9.14 + github.com/ipfs/go-ipfs-blockstore v1.0.0 + github.com/ipfs/go-ipfs-ds-help v1.0.0 + github.com/jmoiron/sqlx v1.2.0 + github.com/multiformats/go-multihash v0.0.13 +) diff --git a/go.sum b/go.sum new file mode 100644 index 0000000..63c9050 --- /dev/null +++ b/go.sum @@ -0,0 +1,216 @@ +github.com/Azure/azure-pipeline-go v0.2.1/go.mod 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h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw= +gopkg.in/urfave/cli.v1 v1.20.0/go.mod h1:vuBzUtMdQeixQj8LVd+/98pzhxNGQoyuPBlsXHOQNO0= +gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= +gotest.tools v2.2.0+incompatible/go.mod h1:DsYFclhRJ6vuDpmuTbkuFWG+y2sxOXAzmJt81HFBacw= diff --git a/util.go b/util.go new file mode 100644 index 0000000..cef9a72 --- /dev/null +++ b/util.go @@ -0,0 +1,34 @@ +// 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 . + +package ipfseth + +import ( + "github.com/ipfs/go-ipfs-blockstore" + "github.com/ipfs/go-ipfs-ds-help" + + "github.com/multiformats/go-multihash" +) + +// MultihashKeyFromKeccak256 converts keccak256 hash bytes into a blockstore-prefixed multihash db key string +func MultihashKeyFromKeccak256(b []byte) (string, error) { + mh, err := multihash.Encode(b, multihash.KECCAK_256) + if err != nil { + return "", err + } + dbKey := dshelp.MultihashToDsKey(mh) + return blockstore.BlockPrefix.String() + dbKey.String(), nil +} From 3a3d8180e96a4a9d8d7651128802f0ee660462d8 Mon Sep 17 00:00:00 2001 From: Ian Norden Date: Sat, 30 May 2020 12:10:48 -0500 Subject: [PATCH 6/6] goimports -w --- batch.go | 2 +- database.go | 2 +- iterator.go | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/batch.go b/batch.go index 533a115..12e7db1 100644 --- a/batch.go +++ b/batch.go @@ -96,4 +96,4 @@ func (b *Batch) Reset() { panic(err) } b.size = 0 -} \ No newline at end of file +} diff --git a/database.go b/database.go index e2a9eda..0fe2e50 100644 --- a/database.go +++ b/database.go @@ -239,4 +239,4 @@ func (d *Database) TruncateAncients(n uint64) error { // Sync flushes all in-memory ancient store data to disk func (d *Database) Sync() error { return errNotSupported -} \ No newline at end of file +} diff --git a/iterator.go b/iterator.go index 48985f0..473d87b 100644 --- a/iterator.go +++ b/iterator.go @@ -79,4 +79,4 @@ func (i *Iterator) Value() []byte { // Release should always succeed and can be called multiple times without causing error func (i *Iterator) Release() { i.db.Close() -} \ No newline at end of file +}