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Fix UI bug with user search and fix race conditions on profiles NIP-05 cache

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Signed-off-by: Terry Yiu <git@tyiu.xyz>
Reviewed-by: William Casarin <jb55@jb55.com>
Signed-off-by: William Casarin <jb55@jb55.com>
This commit is contained in:
Terry Yiu 2023-07-03 21:36:22 -04:00 committed by William Casarin
parent 3d0448a929
commit 640fbf23ea
5 changed files with 30 additions and 16 deletions
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2
damus/Models/HomeModel.swift
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@ -726,7 +726,7 @@ func process_metadata_profile(our_pubkey: String, profiles: Profiles, profile: P
}
Task { @MainActor in
profiles.validated[ev.pubkey] = validated
profiles.set_validated(ev.pubkey, nip05: validated)
profiles.nip05_pubkey[nip05] = ev.pubkey
notify(.profile_updated, ProfileUpdate(pubkey: ev.pubkey, profile: profile))
}

4
damus/Models/Trie.swift
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@ -50,7 +50,6 @@ extension Trie {
}
// Perform breadth-first search from matching branch and collect values from all descendants.
let exactMatches = Array(currentNode.exactMatchValues)
var substringMatches = Set<V>(currentNode.substringMatchValues)
var queue = Array(currentNode.children.values)
@ -61,7 +60,8 @@ extension Trie {
queue.append(contentsOf: node.children.values)
}
return exactMatches + substringMatches
// Prioritize exact matches to be returned first, and then remove exact matches from the set of partial substring matches that are appended afterward.
return Array(currentNode.exactMatchValues) + (substringMatches.subtracting(currentNode.exactMatchValues))
}
/// Inserts value of type V into this trie for the specified key. This function stores all substring endings of the key, not only the key itself.

28
damus/Nostr/Profiles.swift
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@ -13,12 +13,16 @@ class Profiles {
/// This queue is used to synchronize access to the profiles dictionary, which
/// prevents data races from crashing the app.
private var queue = DispatchQueue(label: "io.damus.profiles",
private var profiles_queue = DispatchQueue(label: "io.damus.profiles",
qos: .userInteractive,
attributes: .concurrent)
private var validated_queue = DispatchQueue(label: "io.damus.profiles.validated",
qos: .userInteractive,
attributes: .concurrent)
private var profiles: [String: TimestampedProfile] = [:]
var validated: [String: NIP05] = [:]
private var validated: [String: NIP05] = [:]
var nip05_pubkey: [String: String] = [:]
var zappers: [String: String] = [:]
@ -31,11 +35,19 @@ class Profiles {
}
func is_validated(_ pk: String) -> NIP05? {
validated[pk]
validated_queue.sync {
validated[pk]
}
}
func set_validated(_ pk: String, nip05: NIP05?) {
validated_queue.async(flags: .barrier) {
self.validated[pk] = nip05
}
}
func enumerated() -> EnumeratedSequence<[String: TimestampedProfile]> {
return queue.sync {
return profiles_queue.sync {
return profiles.enumerated()
}
}
@ -45,7 +57,7 @@ class Profiles {
}
func add(id: String, profile: TimestampedProfile) {
queue.async(flags: .barrier) {
profiles_queue.async(flags: .barrier) {
let old_timestamped_profile = self.profiles[id]
self.profiles[id] = profile
self.user_search_cache.updateProfile(id: id, profiles: self, oldProfile: old_timestamped_profile?.profile, newProfile: profile.profile)
@ -62,14 +74,14 @@ class Profiles {
func lookup(id: String) -> Profile? {
var profile: Profile?
queue.sync {
profiles_queue.sync {
profile = profiles[id]?.profile
}
return profile ?? database.get(id: id)
}
func lookup_with_timestamp(id: String) -> TimestampedProfile? {
queue.sync {
profiles_queue.sync {
return profiles[id]
}
}
@ -77,7 +89,7 @@ class Profiles {
func has_fresh_profile(id: String) -> Bool {
// check memory first
var profile: Profile?
queue.sync {
profiles_queue.sync {
profile = profiles[id]?.profile
}
if profile != nil {

5
damus/Views/SearchResultsView.swift
View File

@ -194,7 +194,6 @@ func search_profiles(profiles: Profiles, search: String) -> [SearchedUser] {
let matched_pubkeys = profiles.user_search_cache.search(key: new)
return matched_pubkeys
.map { ($0, profiles.lookup(id: $0)) }
.filter { $1 != nil }
.map { SearchedUser(profile: $1, pubkey: $0) }
.map { SearchedUser(profile: profiles.lookup(id: $0), pubkey: $0) }
.filter { $0.profile != nil }
}

7
damusTests/UserSearchCacheTests.swift
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@ -19,8 +19,9 @@ final class UserSearchCacheTests: XCTestCase {
if let keypair {
let pubkey = keypair.pubkey
let validatedNip05 = try XCTUnwrap(NIP05.parse(nip05))
damusState.profiles.validated[pubkey] = NIP05.parse(nip05)
damusState.profiles.set_validated(pubkey, nip05: validatedNip05)
let profile = Profile(name: "tyiu", display_name: "Terry Yiu", about: nil, picture: nil, banner: nil, website: nil, lud06: nil, lud16: nil, nip05: nip05, damus_donation: nil)
let timestampedProfile = TimestampedProfile(profile: profile, timestamp: 0, event: test_event)
@ -50,7 +51,9 @@ final class UserSearchCacheTests: XCTestCase {
let keypair = try XCTUnwrap(keypair)
let newNip05 = "_@other.xyz"
damusState.profiles.validated[keypair.pubkey] = NIP05.parse(newNip05)
let validatedNewNip05 = try XCTUnwrap(NIP05.parse(newNip05))
damusState.profiles.set_validated(keypair.pubkey, nip05: NIP05.parse(newNip05))
let newProfile = Profile(name: "whoami", display_name: "T-DAWG", about: nil, picture: nil, banner: nil, website: nil, lud06: nil, lud16: nil, nip05: newNip05, damus_donation: nil)
let newTimestampedProfile = TimestampedProfile(profile: newProfile, timestamp: 1000, event: test_event)