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mastodon-app-ufficiale-iphone-ios
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fix: the race-condition issue in username checking

This commit is contained in:
sunxiaojian 2021-04-29 16:12:04 +08:00
parent a9fdd2efa3
commit 1e5daf5a77
3 changed files with 34 additions and 26 deletions
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54
Mastodon/Scene/Onboarding/Register/MastodonRegisterViewModel.swift
View File

@ -82,10 +82,36 @@ final class MastodonRegisterViewModel {
.assign(to: \.value, on: usernameValidateState)
.store(in: &disposeBag)
username.debounce(for: .milliseconds(300), scheduler: DispatchQueue.main).removeDuplicates()
.sink { [weak self] text in
self?.lookupAccount(by: text)
username
.filter { !$0.isEmpty }
.debounce(for: .milliseconds(300), scheduler: DispatchQueue.main)
.removeDuplicates()
.compactMap { [weak self] text -> AnyPublisher<Result<Mastodon.Response.Content<Mastodon.Entity.Account>, Error>, Never>? in
guard let self = self else { return nil }
let query = Mastodon.API.Account.AccountLookupQuery(acct: text)
return context.apiService.accountLookup(domain: domain, query: query, authorization: self.applicationAuthorization)
.map {
response -> Result<Mastodon.Response.Content<Mastodon.Entity.Account>, Error>in
Result.success(response)
}
.catch { error in
Just(Result.failure(error))
}
.eraseToAnyPublisher()
}
.switchToLatest()
.sink(receiveCompletion: { _ in
}, receiveValue: { [weak self] result in
guard let self = self else { return }
switch result {
case .success:
let text = L10n.Scene.Register.Error.Reason.taken(L10n.Scene.Register.Error.Item.username)
self.usernameErrorPrompt.value = MastodonRegisterViewModel.errorPromptAttributedString(for: text)
case .failure:
break
}
})
.store(in: &disposeBag)
usernameValidateState
@ -133,7 +159,8 @@ final class MastodonRegisterViewModel {
let error = error as? Mastodon.API.Error
let mastodonError = error?.mastodonError
if case let .generic(genericMastodonError) = mastodonError,
let details = genericMastodonError.details {
let details = genericMastodonError.details
{
self.usernameErrorPrompt.value = details.usernameErrorDescriptions.first.flatMap { MastodonRegisterViewModel.errorPromptAttributedString(for: $0) }
self.emailErrorPrompt.value = details.emailErrorDescriptions.first.flatMap { MastodonRegisterViewModel.errorPromptAttributedString(for: $0) }
self.passwordErrorPrompt.value = details.passwordErrorDescriptions.first.flatMap { MastodonRegisterViewModel.errorPromptAttributedString(for: $0) }
@ -163,23 +190,6 @@ final class MastodonRegisterViewModel {
.assign(to: \.value, on: isAllValid)
.store(in: &disposeBag)
}
func lookupAccount(by acct: String) {
if acct.isEmpty {
return
}
let query = Mastodon.API.Account.AccountLookupQuery(acct: acct)
context.apiService.accountLookup(domain: domain, query: query, authorization: applicationAuthorization)
.sink { _ in
} receiveValue: { [weak self] account in
guard let self = self else { return }
let text = L10n.Scene.Register.Error.Reason.taken(L10n.Scene.Register.Error.Item.username)
self.usernameErrorPrompt.value = MastodonRegisterViewModel.errorPromptAttributedString(for: text)
}
.store(in: &disposeBag)
}
}
extension MastodonRegisterViewModel {
@ -191,7 +201,6 @@ extension MastodonRegisterViewModel {
}
extension MastodonRegisterViewModel {
static func isValidEmail(_ email: String) -> Bool {
let emailRegEx = "[A-Z0-9a-z._%+-]+@[A-Za-z0-9.-]+\\.[A-Za-z]{2,64}"
@ -241,5 +250,4 @@ extension MastodonRegisterViewModel {
return attributeString
}
}

2
MastodonSDK/Sources/MastodonSDK/API/Mastodon+API+Account.swift
View File

@ -161,7 +161,7 @@ extension Mastodon.API.Account {
/// - session: `URLSession`
/// - domain: Mastodon instance domain. e.g. "example.com"
/// - query: `AccountInfoQuery` with account query information,
/// - authorization: user token
/// - authorization: app token
/// - Returns: `AnyPublisher` contains `Account` nested in the response
public static func lookupAccount(
session: URLSession,