mirror of https://github.com/vacp2p/nim-libp2p.git
clean up peerid (#470)
* fix dangling cstring on error return * remove some useless inlines * less mallocs in shortlog * proc -> func * rename test
This commit is contained in:
Jacek Sieka
GitHub
parent
e9d4679059
commit
1befeb8c2e
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@ -11,20 +11,19 @@
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{.push raises: [Defect].}
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import std/hashes
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import chronicles
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import nimcrypto/utils, stew/base58
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import crypto/crypto, multicodec, multihash, vbuffer
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import protobuf/minprotobuf
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import stew/results
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import
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std/[hashes, strutils],
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stew/[base58, results],
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chronicles,
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nimcrypto/utils,
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./crypto/crypto, ./multicodec, ./multihash, ./vbuffer,
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./protobuf/minprotobuf
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export results
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const
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maxInlineKeyLength* = 42
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# TODO: add proper on disc serialization
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# using peer-id protobuf format
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type
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PeerID* = object
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data*: seq[byte]
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@ -36,19 +35,15 @@ func `$`*(pid: PeerID): string =
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func shortLog*(pid: PeerId): string =
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## Returns compact string representation of ``pid``.
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var spid = $pid
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if len(spid) <= 10:
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result = spid
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else:
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result = newStringOfCap(10)
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for i in 0..<2:
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result.add(spid[i])
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result.add("*")
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for i in (len(spid) - 6)..spid.high:
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result.add(spid[i])
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if len(spid) > 10:
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spid[3] = '*'
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spid.delete(4, spid.high - 6)
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spid
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chronicles.formatIt(PeerID): shortLog(it)
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proc toBytes*(pid: PeerID, data: var openarray[byte]): int =
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func toBytes*(pid: PeerID, data: var openarray[byte]): int =
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## Store PeerID ``pid`` to array of bytes ``data``.
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##
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## Returns number of bytes needed to store ``pid``.
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@ -56,20 +51,19 @@ proc toBytes*(pid: PeerID, data: var openarray[byte]): int =
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if len(data) >= result and result > 0:
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copyMem(addr data[0], unsafeAddr pid.data[0], result)
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proc getBytes*(pid: PeerID): seq[byte] {.inline.} =
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template getBytes*(pid: PeerID): seq[byte] =
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## Return PeerID ``pid`` as array of bytes.
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result = pid.data
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pid.data
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proc hex*(pid: PeerID): string {.inline.} =
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func hex*(pid: PeerID): string =
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## Returns hexadecimal string representation of ``pid``.
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if len(pid.data) > 0:
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result = toHex(pid.data)
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toHex(pid.data)
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proc len*(pid: PeerID): int {.inline.} =
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template len*(pid: PeerID): int =
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## Returns length of ``pid`` binary representation.
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result = len(pid.data)
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len(pid.data)
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proc cmp*(a, b: PeerID): int =
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func cmp*(a, b: PeerID): int =
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## Compares two peer ids ``a`` and ``b``.
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## Returns:
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##
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@ -84,30 +78,29 @@ proc cmp*(a, b: PeerID): int =
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inc(i)
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result = len(a.data) - len(b.data)
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proc `<=`*(a, b: PeerID): bool {.inline.} =
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template `<=`*(a, b: PeerID): bool =
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(cmp(a, b) <= 0)
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proc `<`*(a, b: PeerID): bool {.inline.} =
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template `<`*(a, b: PeerID): bool =
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(cmp(a, b) < 0)
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proc `>=`*(a, b: PeerID): bool {.inline.} =
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template `>=`*(a, b: PeerID): bool =
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(cmp(a, b) >= 0)
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proc `>`*(a, b: PeerID): bool {.inline.} =
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template `>`*(a, b: PeerID): bool =
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(cmp(a, b) > 0)
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proc `==`*(a, b: PeerID): bool {.inline.} =
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template `==`*(a, b: PeerID): bool =
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(cmp(a, b) == 0)
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proc hash*(pid: PeerID): Hash {.inline.} =
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result = hash(pid.data)
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template hash*(pid: PeerID): Hash =
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hash(pid.data)
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proc validate*(pid: PeerID): bool =
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func validate*(pid: PeerID): bool =
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## Validate check if ``pid`` is empty or not.
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if len(pid.data) > 0:
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result = MultiHash.validate(pid.data)
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len(pid.data) > 0 and MultiHash.validate(pid.data)
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proc hasPublicKey*(pid: PeerID): bool =
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func hasPublicKey*(pid: PeerID): bool =
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## Returns ``true`` if ``pid`` is small enough to hold public key inside.
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if len(pid.data) > 0:
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var mh: MultiHash
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@ -115,19 +108,19 @@ proc hasPublicKey*(pid: PeerID): bool =
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if mh.mcodec == multiCodec("identity"):
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result = true
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proc extractPublicKey*(pid: PeerID, pubkey: var PublicKey): bool =
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func extractPublicKey*(pid: PeerID, pubkey: var PublicKey): bool =
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## Returns ``true`` if public key was successfully decoded from PeerID
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## ``pid``and stored to ``pubkey``.
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##
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## Returns ``false`` otherwise.
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var mh: MultiHash
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if len(pid.data) > 0:
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var mh: MultiHash
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if MultiHash.decode(pid.data, mh).isOk:
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if mh.mcodec == multiCodec("identity"):
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let length = len(mh.data.buffer)
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result = pubkey.init(mh.data.buffer.toOpenArray(mh.dpos, length - 1))
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proc init*(pid: var PeerID, data: openarray[byte]): bool =
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func init*(pid: var PeerID, data: openarray[byte]): bool =
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## Initialize peer id from raw binary representation ``data``.
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##
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## Returns ``true`` if peer was successfully initialiazed.
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@ -136,7 +129,7 @@ proc init*(pid: var PeerID, data: openarray[byte]): bool =
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pid = p
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result = true
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proc init*(pid: var PeerID, data: string): bool =
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func init*(pid: var PeerID, data: string): bool =
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## Initialize peer id from base58 encoded string representation.
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##
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## Returns ``true`` if peer was successfully initialiazed.
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@ -150,7 +143,7 @@ proc init*(pid: var PeerID, data: string): bool =
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pid = opid
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result = true
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proc init*(t: typedesc[PeerID], data: openarray[byte]): Result[PeerID, cstring] {.inline.} =
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func init*(t: typedesc[PeerID], data: openarray[byte]): Result[PeerID, cstring] =
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## Create new peer id from raw binary representation ``data``.
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var res: PeerID
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if not init(res, data):
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@ -158,7 +151,7 @@ proc init*(t: typedesc[PeerID], data: openarray[byte]): Result[PeerID, cstring]
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else:
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ok(res)
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proc init*(t: typedesc[PeerID], data: string): Result[PeerID, cstring] {.inline.} =
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func init*(t: typedesc[PeerID], data: string): Result[PeerID, cstring] =
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## Create new peer id from base58 encoded string representation ``data``.
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var res: PeerID
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if not init(res, data):
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@ -166,9 +159,10 @@ proc init*(t: typedesc[PeerID], data: string): Result[PeerID, cstring] {.inline.
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else:
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ok(res)
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proc init*(t: typedesc[PeerID], pubkey: PublicKey): Result[PeerID, cstring] =
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func init*(t: typedesc[PeerID], pubkey: PublicKey): Result[PeerID, cstring] =
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## Create new peer id from public key ``pubkey``.
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var pubraw = ? pubkey.getBytes().orError("peerid: failed to get bytes from given key")
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var pubraw = ? pubkey.getBytes().orError(
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cstring("peerid: failed to get bytes from given key"))
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var mh: MultiHash
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if len(pubraw) <= maxInlineKeyLength:
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mh = ? MultiHash.digest("identity", pubraw)
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@ -176,11 +170,11 @@ proc init*(t: typedesc[PeerID], pubkey: PublicKey): Result[PeerID, cstring] =
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mh = ? MultiHash.digest("sha2-256", pubraw)
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ok(PeerID(data: mh.data.buffer))
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proc init*(t: typedesc[PeerID], seckey: PrivateKey): Result[PeerID, cstring] {.inline.} =
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func init*(t: typedesc[PeerID], seckey: PrivateKey): Result[PeerID, cstring] =
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## Create new peer id from private key ``seckey``.
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PeerID.init(? seckey.getKey().orError("invalid private key"))
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PeerID.init(? seckey.getKey().orError(cstring("invalid private key")))
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proc match*(pid: PeerID, pubkey: PublicKey): bool {.inline.} =
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func match*(pid: PeerID, pubkey: PublicKey): bool =
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## Returns ``true`` if ``pid`` matches public key ``pubkey``.
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let p = PeerID.init(pubkey)
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if p.isErr:
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@ -188,7 +182,7 @@ proc match*(pid: PeerID, pubkey: PublicKey): bool {.inline.} =
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else:
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pid == p.get()
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proc match*(pid: PeerID, seckey: PrivateKey): bool {.inline.} =
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func match*(pid: PeerID, seckey: PrivateKey): bool =
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## Returns ``true`` if ``pid`` matches private key ``seckey``.
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let p = PeerID.init(seckey)
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if p.isErr:
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@ -198,15 +192,15 @@ proc match*(pid: PeerID, seckey: PrivateKey): bool {.inline.} =
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## Serialization/Deserialization helpers
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proc write*(vb: var VBuffer, pid: PeerID) {.inline.} =
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func write*(vb: var VBuffer, pid: PeerID) =
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## Write PeerID value ``peerid`` to buffer ``vb``.
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vb.writeSeq(pid.data)
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proc initProtoField*(index: int, pid: PeerID): ProtoField {.deprecated.} =
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func initProtoField*(index: int, pid: PeerID): ProtoField {.deprecated.} =
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## Initialize ProtoField with PeerID ``value``.
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result = initProtoField(index, pid.data)
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initProtoField(index, pid.data)
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proc getValue*(data: var ProtoBuffer, field: int, value: var PeerID): int {.
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func getValue*(data: var ProtoBuffer, field: int, value: var PeerID): int {.
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deprecated.} =
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## Read ``PeerID`` from ProtoBuf's message and validate it.
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var pid: PeerID
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@ -217,11 +211,11 @@ proc getValue*(data: var ProtoBuffer, field: int, value: var PeerID): int {.
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else:
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value = pid
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proc write*(pb: var ProtoBuffer, field: int, pid: PeerID) =
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func write*(pb: var ProtoBuffer, field: int, pid: PeerID) =
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## Write PeerID value ``peerid`` to object ``pb`` using ProtoBuf's encoding.
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write(pb, field, pid.data)
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proc getField*(pb: ProtoBuffer, field: int,
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func getField*(pb: ProtoBuffer, field: int,
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pid: var PeerID): ProtoResult[bool] {.inline.} =
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## Read ``PeerID`` from ProtoBuf's message and validate it
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var buffer: seq[byte]
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@ -20,20 +20,20 @@ type
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MCache* = object of RootObj
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msgs*: Table[MessageID, Message]
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history*: seq[seq[CacheEntry]]
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historySize*: Natural
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windowSize*: Natural
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func get*(c: MCache, mid: MessageID): Option[Message] =
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result = none(Message)
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if mid in c.msgs:
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result = some(c.msgs[mid])
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some(c.msgs[mid])
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else:
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none(Message)
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func contains*(c: MCache, mid: MessageID): bool =
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c.get(mid).isSome
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func put*(c: var MCache, msgId: MessageID, msg: Message) =
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if msgId notin c.msgs:
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c.msgs[msgId] = msg
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if not c.msgs.hasKeyOrPut(msgId, msg):
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# Only add cache entry if the message was not already in the cache
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c.history[0].add(CacheEntry(mid: msgId, topicIDs: msg.topicIDs))
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func window*(c: MCache, topic: string): HashSet[MessageID] =
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@ -58,6 +58,5 @@ func shift*(c: var MCache) =
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func init*(T: type MCache, window, history: Natural): T =
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T(
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history: newSeq[seq[CacheEntry]](history),
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historySize: history,
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windowSize: window
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)
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@ -13,7 +13,7 @@ import testmultibase,
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testmultihash,
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testmultiaddress,
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testcid,
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testpeer
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testpeerid
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import testtransport,
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testmultistream,
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@ -220,6 +220,7 @@ suite "Peer testing suite":
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$p1 == $p2
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$p1 == $p3
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$p1 == $p4
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len(shortLog(p1)) <= 10
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if i in {3, 4, 5}:
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var ekey1, ekey2, ekey3, ekey4: PublicKey
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check:
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