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Fixed an edge-case crash, a couple of minor bugs and made future-proofing tweaks 

Fixed a bit of the OnionRequest error handling to better send through server error messages for debugging
Fixed a bug where the initial offset could be negative if the number of messages was less than the page size resulting in a crash
Fixed a crash due to a code path which was thought to be impossible exiting but is actually possible (so just erroring)
Added the 'expire' SnodeAPI endpoint
Removed the 'openGroupServerTimestamp' property (was unused and just added confusion)
Updated the logic to always handle the 'fileId' for uploads/downloads as a string instead of casting it to an Int64
Updated the OpenGroup room parsing to support either Int or String values for image ids
This commit is contained in:
Morgan Pretty 2022-07-12 17:43:52 +10:00
parent b4ab521713
commit 5b6be3912d
20 changed files with 166 additions and 50 deletions
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13
Session/Conversations/ConversationVC.swift
View File

@ -1461,10 +1461,15 @@ final class ConversationVC: BaseVC, OWSConversationSettingsViewDelegate, Convers
var lastSize: CGSize = .zero
self.tableView.afterNextLayoutSubviews(
when: { [weak self] a, b, updatedContentSize in
guard (CACurrentMediaTime() - initialUpdateTime) < 2 && lastSize != updatedContentSize else {
return true
}
when: { [weak self] numSections, numRowInSections, updatedContentSize in
// If too much time has passed or the section/row count doesn't match then
// just stop the callback
guard
(CACurrentMediaTime() - initialUpdateTime) < 2 &&
lastSize != updatedContentSize &&
numSections > targetIndexPath.section &&
numRowInSections[targetIndexPath.section] > targetIndexPath.row
else { return true }
lastSize = updatedContentSize

2
Session/Open Groups/OpenGroupSuggestionGrid.swift
View File

@ -245,7 +245,7 @@ extension OpenGroupSuggestionGrid {
label.text = room.name
// Only continue if we have a room image
guard let imageId: Int64 = room.imageId else {
guard let imageId: String = room.imageId else {
imageView.isHidden = true
return
}

3
SessionMessagingKit/Database/LegacyDatabase/SMKLegacy.swift
View File

@ -141,7 +141,7 @@ public enum SMKLegacy {
internal var sender: String?
internal var groupPublicKey: String?
internal var openGroupServerMessageID: UInt64?
internal var openGroupServerTimestamp: UInt64?
internal var openGroupServerTimestamp: UInt64? // Not used for anything
internal var serverHash: String?
// MARK: NSCoding
@ -175,7 +175,6 @@ public enum SMKLegacy {
result.sender = self.sender
result.groupPublicKey = self.groupPublicKey
result.openGroupServerMessageId = self.openGroupServerMessageID
result.openGroupServerTimestamp = self.openGroupServerTimestamp
result.serverHash = self.serverHash
return result

4
SessionMessagingKit/File Server/FileServerAPI.swift
View File

@ -41,11 +41,11 @@ public final class FileServerAPI: NSObject {
.decoded(as: FileUploadResponse.self, on: .global(qos: .userInitiated))
}
public static func download(_ file: Int64, useOldServer: Bool) -> Promise<Data> {
public static func download(_ fileId: String, useOldServer: Bool) -> Promise<Data> {
let serverPublicKey: String = (useOldServer ? oldServerPublicKey : serverPublicKey)
let request = Request<NoBody, Endpoint>(
server: (useOldServer ? oldServer : server),
endpoint: .fileIndividual(fileId: file)
endpoint: .fileIndividual(fileId: fileId)
)
return send(request, serverPublicKey: serverPublicKey)

2
SessionMessagingKit/File Server/Types/FSEndpoint.swift
View File

@ -5,7 +5,7 @@ import Foundation
extension FileServerAPI {
public enum Endpoint: EndpointType {
case file
case fileIndividual(fileId: Int64)
case fileIndividual(fileId: String)
case sessionVersion
var path: String {

10
SessionMessagingKit/Jobs/Types/AttachmentDownloadJob.swift
View File

@ -87,8 +87,10 @@ public enum AttachmentDownloadJob: JobExecutor {
let downloadPromise: Promise<Data> = {
guard
let downloadUrl: String = attachment.downloadUrl,
let fileAsString: String = downloadUrl.split(separator: "/").last.map({ String($0) }),
let file: Int64 = Int64(fileAsString)
let fileId: String = downloadUrl
.split(separator: "/")
.last
.map({ String($0) })
else {
return Promise(error: AttachmentDownloadError.invalidUrl)
}
@ -98,13 +100,13 @@ public enum AttachmentDownloadJob: JobExecutor {
return nil // Not an open group so just use standard FileServer upload
}
return OpenGroupAPI.downloadFile(db, fileId: file, from: openGroup.roomToken, on: openGroup.server)
return OpenGroupAPI.downloadFile(db, fileId: fileId, from: openGroup.roomToken, on: openGroup.server)
.map { _, data in data }
})
return (
maybeOpenGroupDownloadPromise ??
FileServerAPI.download(file, useOldServer: downloadUrl.contains(FileServerAPI.oldServer))
FileServerAPI.download(fileId, useOldServer: downloadUrl.contains(FileServerAPI.oldServer))
)
}()

3
SessionMessagingKit/Messages/Message.swift
View File

@ -14,7 +14,6 @@ public class Message: Codable {
public var sender: String?
public var groupPublicKey: String?
public var openGroupServerMessageId: UInt64?
public var openGroupServerTimestamp: UInt64?
public var serverHash: String?
public var ttl: UInt64 { 14 * 24 * 60 * 60 * 1000 }
@ -41,7 +40,6 @@ public class Message: Codable {
sender: String? = nil,
groupPublicKey: String? = nil,
openGroupServerMessageId: UInt64? = nil,
openGroupServerTimestamp: UInt64? = nil,
serverHash: String? = nil
) {
self.id = id
@ -52,7 +50,6 @@ public class Message: Codable {
self.sender = sender
self.groupPublicKey = groupPublicKey
self.openGroupServerMessageId = openGroupServerMessageId
self.openGroupServerTimestamp = openGroupServerTimestamp
self.serverHash = serverHash
}

10
SessionMessagingKit/Open Groups/Models/Room.swift
View File

@ -70,7 +70,7 @@ extension OpenGroupAPI {
/// File ID of an uploaded file containing the room's image
///
/// Omitted if there is no image
public let imageId: Int64?
public let imageId: String?
/// Array of pinned message information (omitted entirely if there are no pinned messages)
public let pinnedMessages: [PinnedMessage]?
@ -150,6 +150,12 @@ extension OpenGroupAPI.Room {
public init(from decoder: Decoder) throws {
let container: KeyedDecodingContainer<CodingKeys> = try decoder.container(keyedBy: CodingKeys.self)
// This logic is to future-proof the transition from int-based to string-based image ids
let maybeImageId: String? = (
((try? container.decode(Int64.self, forKey: .imageId)).map { "\($0)" }) ??
(try? container.decode(String.self, forKey: .imageId))
)
self = OpenGroupAPI.Room(
token: try container.decode(String.self, forKey: .token),
name: try container.decode(String.self, forKey: .name),
@ -160,7 +166,7 @@ extension OpenGroupAPI.Room {
activeUsers: try container.decode(Int64.self, forKey: .activeUsers),
activeUsersCutoff: try container.decode(Int64.self, forKey: .activeUsersCutoff),
imageId: try? container.decode(Int64.self, forKey: .imageId),
imageId: maybeImageId,
pinnedMessages: try? container.decode([OpenGroupAPI.PinnedMessage].self, forKey: .pinnedMessages),
admin: ((try? container.decode(Bool.self, forKey: .admin)) ?? false),

2
SessionMessagingKit/Open Groups/OpenGroupAPI.swift
View File

@ -700,7 +700,7 @@ public enum OpenGroupAPI {
public static func downloadFile(
_ db: Database,
fileId: Int64,
fileId: String,
from roomToken: String,
on server: String,
using dependencies: SMKDependencies = SMKDependencies()

12
SessionMessagingKit/Open Groups/OpenGroupManager.swift
View File

@ -446,10 +446,10 @@ public final class OpenGroupManager: NSObject {
/// Start downloading the room image (if we don't have one or it's been updated)
if
let imageId: Int64 = pollInfo.details?.imageId,
let imageId: String = pollInfo.details?.imageId,
(
openGroup.imageData == nil ||
openGroup.imageId != "\(imageId)"
openGroup.imageId != imageId
)
{
OpenGroupManager.roomImage(db, fileId: imageId, for: roomToken, on: server, using: dependencies)
@ -786,7 +786,7 @@ public final class OpenGroupManager: NSObject {
.done(on: OpenGroupAPI.workQueue) { items in
dependencies.storage.writeAsync { db in
items
.compactMap { room -> (Int64, String)? in
.compactMap { room -> (String, String)? in
// Try to insert an inactive version of the OpenGroup (use 'insert' rather than 'save'
// as we want it to fail if the room already exists)
do {
@ -797,7 +797,7 @@ public final class OpenGroupManager: NSObject {
isActive: false,
name: room.name,
roomDescription: room.roomDescription,
imageId: room.imageId.map { "\($0)" },
imageId: room.imageId,
imageData: nil,
userCount: room.activeUsers,
infoUpdates: room.infoUpdates,
@ -809,7 +809,7 @@ public final class OpenGroupManager: NSObject {
}
catch {}
guard let imageId: Int64 = room.imageId else { return nil }
guard let imageId: String = room.imageId else { return nil }
return (imageId, room.token)
}
@ -845,7 +845,7 @@ public final class OpenGroupManager: NSObject {
public static func roomImage(
_ db: Database,
fileId: Int64,
fileId: String,
for roomToken: String,
on server: String,
using dependencies: OGMDependencies = OGMDependencies()

2
SessionMessagingKit/Open Groups/Types/SOGSEndpoint.swift
View File

@ -35,7 +35,7 @@ extension OpenGroupAPI {
// Files
case roomFile(String)
case roomFileIndividual(String, Int64)
case roomFileIndividual(String, String)
// Inbox/Outbox (Message Requests)

1
SessionMessagingKit/Sending & Receiving/MessageReceiver.swift
View File

@ -146,7 +146,6 @@ public enum MessageReceiver {
message.sentTimestamp = envelope.timestamp
message.receivedTimestamp = UInt64((Date().timeIntervalSince1970) * 1000)
message.groupPublicKey = groupPublicKey
message.openGroupServerTimestamp = (isOpenGroupMessage ? envelope.serverTimestamp : nil)
message.openGroupServerMessageId = openGroupMessageServerId.map { UInt64($0) }
// Validate

8
SessionMessagingKit/Sending & Receiving/MessageSender.swift
View File

@ -339,11 +339,17 @@ public final class MessageSender {
.joined(separator: ".")
}
// Note: It's possible to send a message and then delete the open group you sent the message to
// which would go into this case, so rather than handling it as an invalid state we just want to
// error in a non-retryable way
guard
let openGroup: OpenGroup = try? OpenGroup.fetchOne(db, id: threadId),
let userEdKeyPair: Box.KeyPair = Identity.fetchUserEd25519KeyPair(db),
case .openGroup(let roomToken, let server, let whisperTo, let whisperMods, let fileIds) = destination
else { preconditionFailure() }
else {
seal.reject(MessageSenderError.invalidMessage)
return promise
}
message.sender = {
let capabilities: [Capability.Variant] = (try? Capability

10
SessionMessagingKit/Utilities/ProfileManager.swift
View File

@ -145,15 +145,15 @@ public struct ProfileManager {
// Download already in flight; ignore
return
}
guard
let profileUrlStringAtStart: String = profile.profilePictureUrl,
let profileUrlAtStart: URL = URL(string: profileUrlStringAtStart)
else {
guard let profileUrlStringAtStart: String = profile.profilePictureUrl else {
SNLog("Skipping downloading avatar for \(profile.id) because url is not set")
return
}
guard
let fileId: Int64 = Int64(profileUrlAtStart.lastPathComponent),
let fileId: String = profileUrlStringAtStart
.split(separator: "/")
.last
.map({ String($0) }),
let profileKeyAtStart: OWSAES256Key = profile.profileEncryptionKey,
profileKeyAtStart.keyData.count > 0
else {

5
SessionSnodeKit/Models/OnionRequestAPIError.swift
View File

@ -14,8 +14,11 @@ public enum OnionRequestAPIError: LocalizedError {
public var errorDescription: String? {
switch self {
case .httpRequestFailedAtDestination(let statusCode, _, let destination):
case .httpRequestFailedAtDestination(let statusCode, let data, let destination):
if statusCode == 429 { return "Rate limited." }
if let errorResponse: String = String(data: data, encoding: .utf8) {
return "HTTP request failed at destination (\(destination)) with status code: \(statusCode), error body: \(errorResponse)."
}
return "HTTP request failed at destination (\(destination)) with status code: \(statusCode)."

1
SessionSnodeKit/Models/SnodeAPIEndpoint.swift
View File

@ -10,4 +10,5 @@ public enum SnodeAPIEndpoint: String {
case oxenDaemonRPCCall = "oxend_request"
case getInfo = "info"
case clearAllData = "delete_all"
case expire = "expire"
}

7
SessionSnodeKit/OnionRequestAPI.swift
View File

@ -650,8 +650,11 @@ public enum OnionRequestAPI: OnionRequestAPIType {
}
if let bodyAsString = json["body"] as? String {
guard let bodyAsData = bodyAsString.data(using: .utf8), let body = try JSONSerialization.jsonObject(with: bodyAsData, options: [ .fragmentsAllowed ]) as? JSON else {
return seal.reject(HTTP.Error.invalidJSON)
guard let bodyAsData = bodyAsString.data(using: .utf8) else {
return seal.reject(HTTP.Error.invalidResponse)
}
guard let body = try? JSONSerialization.jsonObject(with: bodyAsData, options: [ .fragmentsAllowed ]) as? JSON else {
return seal.reject(OnionRequestAPIError.httpRequestFailedAtDestination(statusCode: UInt(statusCode), data: bodyAsData, destination: destination))
}
if let timestamp = body["t"] as? Int64 {

115
SessionSnodeKit/SnodeAPI.swift
View File

@ -719,6 +719,99 @@ public final class SnodeAPI {
return promise
}
// MARK: Edit
public static func updateExpiry(
publicKey: String,
edKeyPair: Box.KeyPair,
updatedExpiryMs: UInt64,
serverHashes: [String]
) -> Promise<[String: (hashes: [String], expiry: UInt64)]> {
let publicKey = (Features.useTestnet ? publicKey.removingIdPrefixIfNeeded() : publicKey)
return attempt(maxRetryCount: maxRetryCount, recoveringOn: Threading.workQueue) {
getSwarm(for: publicKey)
.then2 { swarm -> Promise<[String: (hashes: [String], expiry: UInt64)]> in
// "expire" || expiry || messages[0] || ... || messages[N]
let verificationBytes = SnodeAPIEndpoint.expire.rawValue.bytes
.appending(contentsOf: "\(updatedExpiryMs)".data(using: .ascii)?.bytes)
.appending(contentsOf: serverHashes.joined().bytes)
guard
let snode = swarm.randomElement(),
let signature = sodium.sign.signature(
message: verificationBytes,
secretKey: edKeyPair.secretKey
)
else {
throw SnodeAPIError.signingFailed
}
let parameters: JSON = [
"pubkey" : publicKey,
"pubkey_ed25519" : edKeyPair.publicKey.toHexString(),
"expiry": updatedExpiryMs,
"messages": serverHashes,
"signature": signature.toBase64()
]
return attempt(maxRetryCount: maxRetryCount, recoveringOn: Threading.workQueue) {
invoke(.expire, on: snode, associatedWith: publicKey, parameters: parameters)
.map2 { responseData -> [String: (hashes: [String], expiry: UInt64)] in
guard let responseJson: JSON = try? JSONSerialization.jsonObject(with: responseData, options: [ .fragmentsAllowed ]) as? JSON else {
throw HTTP.Error.invalidJSON
}
guard let swarm = responseJson["swarm"] as? JSON else { throw HTTP.Error.invalidJSON }
var result: [String: (hashes: [String], expiry: UInt64)] = [:]
for (snodePublicKey, rawJSON) in swarm {
guard let json = rawJSON as? JSON else { throw HTTP.Error.invalidJSON }
guard (json["failed"] as? Bool ?? false) == false else {
if let reason = json["reason"] as? String, let statusCode = json["code"] as? String {
SNLog("Couldn't delete data from: \(snodePublicKey) due to error: \(reason) (\(statusCode)).")
}
else {
SNLog("Couldn't delete data from: \(snodePublicKey).")
}
result[snodePublicKey] = ([], 0)
continue
}
guard
let hashes: [String] = json["updated"] as? [String],
let expiryApplied: UInt64 = json["expiry"] as? UInt64,
let signature: String = json["signature"] as? String
else {
throw HTTP.Error.invalidJSON
}
// The signature format is ( PUBKEY_HEX || EXPIRY || RMSG[0] || ... || RMSG[N] || UMSG[0] || ... || UMSG[M] )
let verificationBytes = publicKey.bytes
.appending(contentsOf: "\(expiryApplied)".data(using: .ascii)?.bytes)
.appending(contentsOf: serverHashes.joined().bytes)
.appending(contentsOf: hashes.joined().bytes)
let isValid = sodium.sign.verify(
message: verificationBytes,
publicKey: Bytes(Data(hex: snodePublicKey)),
signature: Bytes(Data(base64Encoded: signature)!)
)
// Ensure the signature is valid
guard isValid else {
throw SnodeAPIError.signatureVerificationFailed
}
result[snodePublicKey] = (hashes, expiryApplied)
}
return result
}
}
}
}
}
// MARK: Delete
public static func deleteMessage(publicKey: String, serverHashes: [String]) -> Promise<[String: Bool]> {
@ -732,10 +825,16 @@ public final class SnodeAPI {
return attempt(maxRetryCount: maxRetryCount, recoveringOn: Threading.workQueue) {
getSwarm(for: publicKey)
.then2 { swarm -> Promise<[String: Bool]> in
// "delete" || messages...
let verificationBytes = SnodeAPIEndpoint.deleteMessage.rawValue.bytes
.appending(contentsOf: serverHashes.joined().bytes)
guard
let snode = swarm.randomElement(),
let verificationData = (SnodeAPIEndpoint.deleteMessage.rawValue + serverHashes.joined()).data(using: String.Encoding.utf8),
let signature = sodium.sign.signature(message: Bytes(verificationData), secretKey: userED25519KeyPair.secretKey)
let signature = sodium.sign.signature(
message: verificationBytes,
secretKey: userED25519KeyPair.secretKey
)
else {
throw SnodeAPIError.signingFailed
}
@ -771,15 +870,11 @@ public final class SnodeAPI {
}
// The signature format is ( PUBKEY_HEX || RMSG[0] || ... || RMSG[N] || DMSG[0] || ... || DMSG[M] )
let verificationData = [
userX25519PublicKey,
serverHashes.joined(),
hashes.joined()
]
.joined()
.data(using: String.Encoding.utf8)!
let verificationBytes = userX25519PublicKey.bytes
.appending(contentsOf: serverHashes.joined().bytes)
.appending(contentsOf: hashes.joined().bytes)
let isValid = sodium.sign.verify(
message: Bytes(verificationData),
message: verificationBytes,
publicKey: Bytes(Data(hex: snodePublicKey)),
signature: Bytes(Data(base64Encoded: signature)!)
)

2
SessionUtilitiesKit/Database/Types/PagedDatabaseObserver.swift
View File

@ -411,7 +411,7 @@ public class PagedDatabaseObserver<ObservedTable, T>: TransactionObserver where
guard targetIndex > halfPageSize else { return 0 }
guard targetIndex < (totalCount - halfPageSize) else {
return (totalCount - currentPageInfo.pageSize)
return max(0, (totalCount - currentPageInfo.pageSize))
}
return (targetIndex - halfPageSize)

4
SessionUtilitiesKit/General/SessionId.swift
View File

@ -7,8 +7,8 @@ import Curve25519Kit
public struct SessionId {
public enum Prefix: String, CaseIterable {
case standard = "05" // Used for identified users, open groups, etc.
case blinded = "15" // Used for participants in open groups with blinding enabled
case unblinded = "00" // Used for participants in open groups with blinding disabled
case blinded = "15" // Used for authentication and participants in open groups with blinding enabled
case unblinded = "00" // Used for authentication in open groups with blinding disabled
public init?(from stringValue: String?) {
guard let stringValue: String = stringValue else { return nil }