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update postgres v0 subpkg and tests to work with cid keys

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This commit is contained in:
i-norden 2023-02-20 12:26:40 -06:00
parent 5451c3c225
commit d2176e69af
6 changed files with 88 additions and 83 deletions
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23
postgres/v0/batch.go
View File

@ -19,6 +19,8 @@ package pgipfsethdb
import (
"math/big"
"github.com/ipfs/go-cid"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/jmoiron/sqlx"
)
@ -49,13 +51,20 @@ func NewBatch(db *sqlx.DB, tx *sqlx.Tx, blockNumber *big.Int) ethdb.Batch {
// Put satisfies the ethdb.Batch interface
// Put inserts the given value into the key-value data store
// Key is expected to be the keccak256 hash of value
func (b *Batch) Put(key []byte, value []byte) (err error) {
mhKey, err := MultihashKeyFromKeccak256(key)
// Key is expected to be a fully formulated cid key
// TODO: note, now that we expected a cid we could route to the "cids" tables based on prefix instead of to public.blocks
// but is it better to handle this routing here, or use a completely different interface since we already have to refactor
// at levels above this package in order to pass in cids instead of raw keccak256 hashes
func (b *Batch) Put(cidBytes []byte, value []byte) (err error) {
// cast and resolve strings from cid.Cast
// this will assert that we have a correctly formatted CID
// and will handle the different string encodings for v0 and v1 CIDs
// (note that this v0 vs v1 is different from the blockstore v0 vs v1)
c, err := cid.Cast(cidBytes)
if err != nil {
return err
}
if _, err = b.tx.Exec(putPgStr, mhKey, value, b.blockNumber.Uint64()); err != nil {
if _, err = b.tx.Exec(putPgStr, c.String(), value, b.blockNumber.Uint64()); err != nil {
return err
}
b.valueSize += len(value)
@ -64,12 +73,12 @@ func (b *Batch) Put(key []byte, value []byte) (err error) {
// Delete satisfies the ethdb.Batch interface
// Delete removes the key from the key-value data store
func (b *Batch) Delete(key []byte) (err error) {
mhKey, err := MultihashKeyFromKeccak256(key)
func (b *Batch) Delete(cidBytes []byte) (err error) {
c, err := cid.Cast(cidBytes)
if err != nil {
return err
}
_, err = b.tx.Exec(deletePgStr, mhKey)
_, err = b.tx.Exec(deletePgStr, c.String())
return err
}

39
postgres/v0/batch_test.go
View File

@ -20,6 +20,10 @@ import (
"math/big"
"time"
"github.com/cerc-io/ipfs-ethdb/v4/postgres/shared"
"github.com/ipfs/go-cid"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/rlp"
@ -27,7 +31,7 @@ import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
pgipfsethdb "github.com/cerc-io/ipfs-ethdb/v4/postgres"
pgipfsethdb "github.com/cerc-io/ipfs-ethdb/v4/postgres/v0"
)
var (
@ -35,11 +39,12 @@ var (
testHeader2 = types.Header{Number: big.NewInt(2)}
testValue2, _ = rlp.EncodeToBytes(testHeader2)
testEthKey2 = testHeader2.Hash().Bytes()
testCID2, _ = pgipfsethdb.CIDFromKeccak256(testEthKey2, cid.EthBlock)
)
var _ = Describe("Batch", func() {
BeforeEach(func() {
db, err = pgipfsethdb.TestDB()
db, err = shared.TestDB()
Expect(err).ToNot(HaveOccurred())
cacheConfig := pgipfsethdb.CacheConfig{
@ -58,30 +63,30 @@ var _ = Describe("Batch", func() {
})
AfterEach(func() {
groupcache.DeregisterGroup("db")
err = pgipfsethdb.ResetTestDB(db)
err = shared.ResetTestDB(db)
Expect(err).ToNot(HaveOccurred())
})
Describe("Put/Write", func() {
It("adds the key-value pair to the batch", func() {
_, err = database.Get(testEthKey)
_, err = database.Get(testCID.Bytes())
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
_, err = database.Get(testEthKey2)
_, err = database.Get(testCID2.Bytes())
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
err = batch.Put(testEthKey, testValue)
err = batch.Put(testCID.Bytes(), testValue)
Expect(err).ToNot(HaveOccurred())
err = batch.Put(testEthKey2, testValue2)
err = batch.Put(testCID2.Bytes(), testValue2)
Expect(err).ToNot(HaveOccurred())
err = batch.Write()
Expect(err).ToNot(HaveOccurred())
val, err := database.Get(testEthKey)
val, err := database.Get(testCID.Bytes())
Expect(err).ToNot(HaveOccurred())
Expect(val).To(Equal(testValue))
val2, err := database.Get(testEthKey2)
val2, err := database.Get(testCID2.Bytes())
Expect(err).ToNot(HaveOccurred())
Expect(val2).To(Equal(testValue2))
})
@ -89,25 +94,25 @@ var _ = Describe("Batch", func() {
Describe("Delete/Reset/Write", func() {
It("deletes the key-value pair in the batch", func() {
err = batch.Put(testEthKey, testValue)
err = batch.Put(testCID.Bytes(), testValue)
Expect(err).ToNot(HaveOccurred())
err = batch.Put(testEthKey2, testValue2)
err = batch.Put(testCID2.Bytes(), testValue2)
Expect(err).ToNot(HaveOccurred())
err = batch.Write()
Expect(err).ToNot(HaveOccurred())
batch.Reset()
err = batch.Delete(testEthKey)
err = batch.Delete(testCID.Bytes())
Expect(err).ToNot(HaveOccurred())
err = batch.Delete(testEthKey2)
err = batch.Delete(testCID2.Bytes())
Expect(err).ToNot(HaveOccurred())
err = batch.Write()
Expect(err).ToNot(HaveOccurred())
_, err = database.Get(testEthKey)
_, err = database.Get(testCID.Bytes())
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
_, err = database.Get(testEthKey2)
_, err = database.Get(testCID2.Bytes())
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
})
@ -115,9 +120,9 @@ var _ = Describe("Batch", func() {
Describe("ValueSize/Reset", func() {
It("returns the size of data in the batch queued for write", func() {
err = batch.Put(testEthKey, testValue)
err = batch.Put(testCID.Bytes(), testValue)
Expect(err).ToNot(HaveOccurred())
err = batch.Put(testEthKey2, testValue2)
err = batch.Put(testCID2.Bytes(), testValue2)
Expect(err).ToNot(HaveOccurred())
err = batch.Write()
Expect(err).ToNot(HaveOccurred())

37
postgres/v0/database.go
View File

@ -26,6 +26,8 @@ import (
"strings"
"time"
"github.com/ipfs/go-cid"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/jmoiron/sqlx"
"github.com/mailgun/groupcache/v2"
@ -102,14 +104,14 @@ func (d *Database) GetCacheStats() groupcache.Stats {
}
// 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)
// Has retrieves if a cid is present in the key-value data store
func (d *Database) Has(cidBytes []byte) (bool, error) {
c, err := cid.Cast(cidBytes)
if err != nil {
return false, err
}
var exists bool
return exists, d.db.Get(&exists, hasPgStr, mhKey)
return exists, d.db.Get(&exists, hasPgStr, c.String())
}
// Get retrieves the given key if it's present in the key-value data store
@ -124,9 +126,9 @@ func (d *Database) dbGet(key string) ([]byte, error) {
}
// 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)
// Get retrieves the given cid if it's present in the key-value data store
func (d *Database) Get(cidBytes []byte) ([]byte, error) {
c, err := cid.Cast(cidBytes)
if err != nil {
return nil, err
}
@ -135,30 +137,31 @@ func (d *Database) Get(key []byte) ([]byte, error) {
defer cancel()
var data []byte
return data, d.cache.Get(ctx, mhKey, groupcache.AllocatingByteSliceSink(&data))
return data, d.cache.Get(ctx, c.String(), groupcache.AllocatingByteSliceSink(&data))
}
// Put satisfies the ethdb.KeyValueWriter interface
// Put inserts the given value into the key-value data store
// Key is expected to be the keccak256 hash of value
func (d *Database) Put(key []byte, value []byte) error {
mhKey, err := MultihashKeyFromKeccak256(key)
// Key is expected to be a fully formulated cis of value
func (d *Database) Put(cidBytes []byte, value []byte) error {
c, err := cid.Cast(cidBytes)
if err != nil {
return err
}
_, err = d.db.Exec(putPgStr, mhKey, value, d.BlockNumber.Uint64())
_, err = d.db.Exec(putPgStr, c.String(), value, d.BlockNumber.Uint64())
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)
// Delete removes the cid from the key-value data store
func (d *Database) Delete(cidBytes []byte) error {
c, err := cid.Cast(cidBytes)
if err != nil {
return err
}
cidString := c.String()
_, err = d.db.Exec(deletePgStr, mhKey)
_, err = d.db.Exec(deletePgStr, cidString)
if err != nil {
return err
}
@ -166,7 +169,7 @@ func (d *Database) Delete(key []byte) error {
// Remove from cache.
ctx, cancel := context.WithTimeout(context.Background(), time.Millisecond*500)
defer cancel()
err = d.cache.Remove(ctx, mhKey)
err = d.cache.Remove(ctx, cidString)
return err
}

38
postgres/v0/database_test.go
View File

@ -20,6 +20,10 @@ import (
"math/big"
"time"
"github.com/cerc-io/ipfs-ethdb/v4/postgres/shared"
"github.com/ipfs/go-cid"
"github.com/ethereum/go-ethereum/core/types"
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ethereum/go-ethereum/rlp"
@ -28,7 +32,7 @@ import (
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
pgipfsethdb "github.com/cerc-io/ipfs-ethdb/v4/postgres"
pgipfsethdb "github.com/cerc-io/ipfs-ethdb/v4/postgres/v0"
)
var (
@ -39,12 +43,12 @@ var (
testHeader = types.Header{Number: testBlockNumber}
testValue, _ = rlp.EncodeToBytes(testHeader)
testEthKey = testHeader.Hash().Bytes()
testMhKey, _ = pgipfsethdb.MultihashKeyFromKeccak256(testEthKey)
testCID, _ = pgipfsethdb.CIDFromKeccak256(testEthKey, cid.EthBlock)
)
var _ = Describe("Database", func() {
BeforeEach(func() {
db, err = pgipfsethdb.TestDB()
db, err = shared.TestDB()
Expect(err).ToNot(HaveOccurred())
cacheConfig := pgipfsethdb.CacheConfig{
@ -61,20 +65,20 @@ var _ = Describe("Database", func() {
})
AfterEach(func() {
groupcache.DeregisterGroup("db")
err = pgipfsethdb.ResetTestDB(db)
err = shared.ResetTestDB(db)
Expect(err).ToNot(HaveOccurred())
})
Describe("Has", func() {
It("returns false if a key-pair doesn't exist in the db", func() {
has, err := database.Has(testEthKey)
has, err := database.Has(testCID.Bytes())
Expect(err).ToNot(HaveOccurred())
Expect(has).ToNot(BeTrue())
})
It("returns true if a key-pair exists in the db", func() {
_, err = db.Exec("INSERT into public.blocks (key, data, block_number) VALUES ($1, $2, $3)", testMhKey, testValue, testBlockNumber.Uint64())
_, err = db.Exec("INSERT into public.blocks (key, data, block_number) VALUES ($1, $2, $3)", testCID.String(), testValue, testBlockNumber.Uint64())
Expect(err).ToNot(HaveOccurred())
has, err := database.Has(testEthKey)
has, err := database.Has(testCID.Bytes())
Expect(err).ToNot(HaveOccurred())
Expect(has).To(BeTrue())
})
@ -82,14 +86,14 @@ var _ = Describe("Database", func() {
Describe("Get", func() {
It("throws an err if the key-pair doesn't exist in the db", func() {
_, err = database.Get(testEthKey)
_, err = database.Get(testCID.Bytes())
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
})
It("returns the value associated with the key, if the pair exists", func() {
_, err = db.Exec("INSERT into public.blocks (key, data, block_number) VALUES ($1, $2, $3)", testMhKey, testValue, testBlockNumber.Uint64())
_, err = db.Exec("INSERT into public.blocks (key, data, block_number) VALUES ($1, $2, $3)", testCID.String(), testValue, testBlockNumber.Uint64())
Expect(err).ToNot(HaveOccurred())
val, err := database.Get(testEthKey)
val, err := database.Get(testCID.Bytes())
Expect(err).ToNot(HaveOccurred())
Expect(val).To(Equal(testValue))
})
@ -97,13 +101,13 @@ var _ = Describe("Database", func() {
Describe("Put", func() {
It("persists the key-value pair in the database", func() {
_, err = database.Get(testEthKey)
_, err = database.Get(testCID.Bytes())
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
err = database.Put(testEthKey, testValue)
err = database.Put(testCID.Bytes(), testValue)
Expect(err).ToNot(HaveOccurred())
val, err := database.Get(testEthKey)
val, err := database.Get(testCID.Bytes())
Expect(err).ToNot(HaveOccurred())
Expect(val).To(Equal(testValue))
})
@ -111,15 +115,15 @@ var _ = Describe("Database", func() {
Describe("Delete", func() {
It("removes the key-value pair from the database", func() {
err = database.Put(testEthKey, testValue)
err = database.Put(testCID.Bytes(), testValue)
Expect(err).ToNot(HaveOccurred())
val, err := database.Get(testEthKey)
val, err := database.Get(testCID.Bytes())
Expect(err).ToNot(HaveOccurred())
Expect(val).To(Equal(testValue))
err = database.Delete(testEthKey)
err = database.Delete(testCID.Bytes())
Expect(err).ToNot(HaveOccurred())
_, err = database.Get(testEthKey)
_, err = database.Get(testCID.Bytes())
Expect(err).To(HaveOccurred())
Expect(err.Error()).To(ContainSubstring("sql: no rows in result set"))
})

5
postgres/v0/iterator.go
View File

@ -18,6 +18,7 @@ package pgipfsethdb
import (
"github.com/ethereum/go-ethereum/ethdb"
"github.com/ipfs/go-cid"
"github.com/jmoiron/sqlx"
)
@ -72,13 +73,13 @@ func (i *Iterator) Key() []byte {
// 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)
c, err := cid.Cast(i.currentKey)
if err != nil {
i.err = err
return nil
}
var data []byte
i.err = i.db.Get(&data, getPgStr, mhKey)
i.err = i.db.Get(&data, getPgStr, c)
return data
}

29
postgres/v0/util.go
View File

@ -17,33 +17,16 @@
package pgipfsethdb
import (
blockstore "github.com/ipfs/go-ipfs-blockstore"
dshelp "github.com/ipfs/go-ipfs-ds-help"
"github.com/jmoiron/sqlx"
"github.com/ipfs/go-cid"
_ "github.com/lib/pq" //postgres driver
"github.com/multiformats/go-multihash"
)
// MultihashKeyFromKeccak256 converts keccak256 hash bytes into a blockstore-prefixed multihash db key string
func MultihashKeyFromKeccak256(h []byte) (string, error) {
mh, err := multihash.Encode(h, multihash.KECCAK_256)
// CIDFromKeccak256 converts keccak256 hash bytes into a v1 cid
func CIDFromKeccak256(hash []byte, codecType uint64) (cid.Cid, error) {
mh, err := multihash.Encode(hash, multihash.KECCAK_256)
if err != nil {
return "", err
return cid.Cid{}, err
}
dbKey := dshelp.MultihashToDsKey(mh)
return blockstore.BlockPrefix.String() + dbKey.String(), nil
}
// TestDB connect to the testing database
// it assumes the database has the IPFS public.blocks table present
// DO NOT use a production db for the test db, as it will remove all contents of the public.blocks table
func TestDB() (*sqlx.DB, error) {
connectStr := "postgresql://localhost:5432/vulcanize_testing?sslmode=disable"
return sqlx.Connect("postgres", connectStr)
}
// ResetTestDB drops all rows in the test db public.blocks table
func ResetTestDB(db *sqlx.DB) error {
_, err := db.Exec("TRUNCATE public.blocks CASCADE")
return err
return cid.NewCidV1(codecType, mh), nil
}