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beta.12: route all API calls through background WKWebView

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This commit is contained in:
SuperDooper
2026-05-11 11:02:30 +02:00
parent fc7fd19652
commit a62584221b
1 changed files with 81 additions and 46 deletions
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ClaudeChecker/UsageViewModel.swift
+81 -46
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@@ -30,6 +30,10 @@ class UsageViewModel: ObservableObject {
private var previousPercents: [String: Double] = [:]
private var firedThresholds: [String: Set<Int>] = [:]
// Background WKWebView used for all API calls — runs fetch() in the page's auth context
private var apiWebView: WKWebView?
private var apiDelegate: APIWebViewDelegate?
init() {
let saved = UserDefaults.standard.double(forKey: "refresh_interval")
refreshInterval = saved > 0 ? saved : 60
@@ -38,9 +42,50 @@ class UsageViewModel: ObservableObject {
burnHistoryStore = saved
}
loadPlaceholderData()
setupAPIWebView()
Task { await checkInitialSignInState() }
}
// MARK: - Background API WebView
private func setupAPIWebView() {
let config = WKWebViewConfiguration()
config.websiteDataStore = WKWebsiteDataStore.default()
let wv = WKWebView(frame: CGRect(x: 0, y: 0, width: 1, height: 1), configuration: config)
let del = APIWebViewDelegate()
wv.navigationDelegate = del
apiWebView = wv
apiDelegate = del
wv.load(URLRequest(url: URL(string: "https://claude.ai")!))
}
// Called after login: reloads the background WebView to pick up the new session, then refreshes.
func reloadAPIWebViewAndRefresh() async {
guard let wv = apiWebView, let del = apiDelegate else {
await refresh()
return
}
await withCheckedContinuation { (cont: CheckedContinuation<Void, Never>) in
del.onDidFinish = { cont.resume() }
wv.load(URLRequest(url: URL(string: "https://claude.ai")!))
}
// Brief pause for the page's JS auth state to settle after navigation
try? await Task.sleep(nanoseconds: 500_000_000)
await refresh()
}
// Runs a fetch() call inside the background WebView's page context (same-origin, credentials included).
private func webViewFetch(_ path: String) async throws -> (statusCode: Int, body: String) {
guard let wv = apiWebView else { throw AppError.networkError }
let js = "const r = await fetch(path, {credentials:'include'}); return {s: r.status, b: await r.text()};"
let result = try await wv.callAsyncJavaScript(
js, arguments: ["path": path], in: nil, in: .page)
guard let d = result as? [String: Any],
let s = (d["s"] as? NSNumber)?.intValue,
let b = d["b"] as? String else { throw AppError.networkError }
return (s, b)
}
private func checkInitialSignInState() async {
let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
if !cookies.isEmpty { isSignedIn = true }
@@ -61,6 +106,8 @@ class UsageViewModel: ObservableObject {
extraUsage = nil
prepaidCredits = nil
overageSpendLimit = nil
// Reload background WebView to clear its session too
apiWebView?.load(URLRequest(url: URL(string: "https://claude.ai")!))
}
func refresh() async {
@@ -128,42 +175,27 @@ class UsageViewModel: ObservableObject {
// MARK: - Bootstrap (org ID + email + plan label in one call)
private func claudeAPIRequest(for url: URL) async -> URLRequest {
var req = URLRequest(url: url)
req.setValue("application/json", forHTTPHeaderField: "accept")
if let cookie = await claudeCookieHeader() {
req.setValue(cookie, forHTTPHeaderField: "Cookie")
}
return req
}
private func fetchBootstrap() async throws -> (orgId: String?, email: String?, planLabel: String?) {
let url = URL(string: "https://claude.ai/api/bootstrap")!
var req = await claudeAPIRequest(for: url)
guard req.value(forHTTPHeaderField: "Cookie") != nil else { throw AppError.notAuthenticated }
let (data, response) = try await URLSession.shared.data(for: req)
guard let http = response as? HTTPURLResponse else { throw AppError.networkError }
if http.statusCode == 401 || http.statusCode == 403 { throw AppError.notAuthenticated }
guard http.statusCode == 200 else { throw AppError.networkError }
guard let json = try? JSONSerialization.jsonObject(with: data) as? [String: Any] else {
let (status, body) = try await webViewFetch("/api/bootstrap")
if status == 401 || status == 403 { throw AppError.notAuthenticated }
guard status == 200 else { throw AppError.networkError }
guard let data = body.data(using: .utf8),
let json = try? JSONSerialization.jsonObject(with: data) as? [String: Any] else {
return (nil, nil, nil)
}
let account = json["account"] as? [String: Any]
// memberships may live under account or at root (older API shape)
let memberships = (account?["memberships"] ?? json["memberships"]) as? [[String: Any]]
let firstOrg = memberships?.first?["organization"] as? [String: Any]
// org ID — primary path then flat-list fallback then dedicated endpoint
var orgId: String? = firstOrg?["uuid"] as? String
if orgId == nil {
orgId = (json["organizations"] as? [[String: Any]])?.first?["uuid"] as? String
}
if orgId == nil {
// Final fallback: fetch /api/organizations directly
let orgsReq = await claudeAPIRequest(for: URL(string: "https://claude.ai/api/organizations")!)
if let (orgsData, orgsResp) = try? await URLSession.shared.data(for: orgsReq),
let orgsHttp = orgsResp as? HTTPURLResponse, orgsHttp.statusCode == 200,
if let (orgsStatus, orgsBody) = try? await webViewFetch("/api/organizations"),
orgsStatus == 200,
let orgsData = orgsBody.data(using: .utf8),
let orgs = try? JSONSerialization.jsonObject(with: orgsData) as? [[String: Any]] {
orgId = orgs.first?["uuid"] as? String
}
@@ -171,7 +203,6 @@ class UsageViewModel: ObservableObject {
let email = account?["email_address"] as? String
// plan label from capabilities e.g. "claude_pro" -> "Pro"
var planLabel: String? = nil
if let caps = firstOrg?["capabilities"] as? [String],
let cap = caps.first(where: { $0.hasPrefix("claude_") }) {
@@ -184,37 +215,25 @@ class UsageViewModel: ObservableObject {
// MARK: - Fetch usage
private func claudeCookieHeader() async -> String? {
let cookies = await WKWebsiteDataStore.default().httpCookieStore.allCookies()
guard !cookies.isEmpty else { return nil }
// Send all cookies from the app's WebView store — the session token may be
// on any domain (claude.ai, anthropic.com, or an auth sub-service).
return HTTPCookie.requestHeaderFields(with: cookies)["Cookie"]
}
private func fetchUsage(orgId: String) async throws -> UsageResponse {
let url = URL(string: "https://claude.ai/api/organizations/\(orgId)/usage")!
let req = await claudeAPIRequest(for: url)
let (data, response) = try await URLSession.shared.data(for: req)
guard let http = response as? HTTPURLResponse else { throw AppError.networkError }
if http.statusCode == 401 || http.statusCode == 403 { throw AppError.notAuthenticated }
guard http.statusCode == 200 else { throw AppError.networkError }
let (status, body) = try await webViewFetch("/api/organizations/\(orgId)/usage")
if status == 401 || status == 403 { throw AppError.notAuthenticated }
guard status == 200 else { throw AppError.networkError }
guard let data = body.data(using: .utf8) else { throw AppError.networkError }
return try JSONDecoder().decode(UsageResponse.self, from: data)
}
private func fetchPrepaidCredits(orgId: String) async throws -> PrepaidCredits? {
let url = URL(string: "https://claude.ai/api/organizations/\(orgId)/prepaid/credits")!
let req = await claudeAPIRequest(for: url)
let (data, response) = try await URLSession.shared.data(for: req)
guard let http = response as? HTTPURLResponse, http.statusCode == 200 else { return nil }
guard let (status, body) = try? await webViewFetch("/api/organizations/\(orgId)/prepaid/credits"),
status == 200,
let data = body.data(using: .utf8) else { return nil }
return try? JSONDecoder().decode(PrepaidCredits.self, from: data)
}
private func fetchOverageSpendLimit(orgId: String) async throws -> OverageSpendLimit? {
let url = URL(string: "https://claude.ai/api/organizations/\(orgId)/overage_spend_limit")!
let req = await claudeAPIRequest(for: url)
let (data, response) = try await URLSession.shared.data(for: req)
guard let http = response as? HTTPURLResponse, http.statusCode == 200 else { return nil }
guard let (status, body) = try? await webViewFetch("/api/organizations/\(orgId)/overage_spend_limit"),
status == 200,
let data = body.data(using: .utf8) else { return nil }
return try? JSONDecoder().decode(OverageSpendLimit.self, from: data)
}
@@ -331,6 +350,22 @@ class UsageViewModel: ObservableObject {
}
}
// MARK: - API WebView Delegate
private class APIWebViewDelegate: NSObject, WKNavigationDelegate {
var onDidFinish: (() -> Void)?
func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
let cb = onDidFinish; onDidFinish = nil; cb?()
}
func webView(_ webView: WKWebView, didFail navigation: WKNavigation!, withError error: Error) {
let cb = onDidFinish; onDidFinish = nil; cb?()
}
func webView(_ webView: WKWebView, didFailProvisionalNavigation navigation: WKNavigation!, withError error: Error) {
let cb = onDidFinish; onDidFinish = nil; cb?()
}
}
enum AppError: LocalizedError {
case notAuthenticated
case networkError