From 8e54c93c6f09cb28754f3953c68169db8dc5d62d Mon Sep 17 00:00:00 2001
From: Brent Simmons <brent@ranchero.com>
Date: Tue, 26 Nov 2024 21:04:53 -0800
Subject: [PATCH] Remove throttled feeds support.

---
 .../LocalAccount/LocalAccountRefresher.swift  | 72 +------------------
 1 file changed, 3 insertions(+), 69 deletions(-)

diff --git a/Account/Sources/Account/LocalAccount/LocalAccountRefresher.swift b/Account/Sources/Account/LocalAccount/LocalAccountRefresher.swift
index ce40fa352..9b8dda747 100644
--- a/Account/Sources/Account/LocalAccount/LocalAccountRefresher.swift
+++ b/Account/Sources/Account/LocalAccount/LocalAccountRefresher.swift
@@ -29,16 +29,12 @@ final class LocalAccountRefresher {
 	}()
 
 	public func refreshFeeds(_ feeds: Set<WebFeed>, completion: (() -> Void)? = nil) {
-
-		let feedsToDownload = feedsWithThrottledHostsRemovedIfNeeded(feeds)
-
-		guard !feedsToDownload.isEmpty else {
+		guard !feeds.isEmpty else {
 			completion?()
 			return
 		}
-
 		self.completion = completion
-		downloadSession.downloadObjects(feedsToDownload as NSSet)
+		downloadSession.downloadObjects(feeds as NSSet)
 	}
 
 	public func suspend() {
@@ -62,13 +58,8 @@ extension LocalAccountRefresher: DownloadSessionDelegate {
 		guard let url = URL(string: feed.url) else {
 			return nil
 		}
-		
-		var request = URLRequest(url: url)
-		if let conditionalGetInfo = feed.conditionalGetInfo {
-			conditionalGetInfo.addRequestHeadersToURLRequest(&request)
-		}
 
-		return request
+		return URLRequest(url: url)
 	}
 	
 	func downloadSession(_ downloadSession: DownloadSession, downloadDidCompleteForRepresentedObject representedObject: AnyObject, response: URLResponse?, data: Data, error: NSError?, completion: @escaping () -> Void) {
@@ -105,9 +96,6 @@ extension LocalAccountRefresher: DownloadSessionDelegate {
 			
 			account.update(feed, with: parsedFeed) { result in
 				if case .success(let articleChanges) = result {
-					if let httpResponse = response as? HTTPURLResponse {
-						feed.conditionalGetInfo = HTTPConditionalGetInfo(urlResponse: httpResponse)
-					}
 					feed.contentHash = dataHash
 					self.delegate?.localAccountRefresher(self, requestCompletedFor: feed)
 					self.delegate?.localAccountRefresher(self, articleChanges: articleChanges) {
@@ -162,60 +150,6 @@ extension LocalAccountRefresher: DownloadSessionDelegate {
 	}
 }
 
-// MARK: - Throttled Hosts
-
-private extension LocalAccountRefresher {
-
-	// We want to support openrss.org, and possibly other domains in the future,
-	// by calling their servers no more often than timeIntervalBetweenThrottledHostsReads.
-	// We store the last read in UserDefaults.
-	static let lastReadOfThrottledHostsDefaultsKey = "lastReadOfThrottledHosts"
-	static let timeIntervalBetweenThrottledHostsReads: TimeInterval = 60 * 60 // One hour
-
-	func feedsWithThrottledHostsRemovedIfNeeded(_ feeds: Set<WebFeed>) -> Set<WebFeed> {
-
-		let currentDate = Date()
-		let lastReadOfThrottledHostsDate = UserDefaults.standard.object(forKey: Self.lastReadOfThrottledHostsDefaultsKey) as? Date ?? Date.distantPast
-		let timeIntervalSinceLastReadOfThrottledHosts = currentDate.timeIntervalSince(lastReadOfThrottledHostsDate)
-
-		let shouldReadThrottledHosts = timeIntervalSinceLastReadOfThrottledHosts > (Self.timeIntervalBetweenThrottledHostsReads)
-
-		if shouldReadThrottledHosts {
-			UserDefaults.standard.set(currentDate, forKey: Self.lastReadOfThrottledHostsDefaultsKey)
-			return feeds
-		}
-
-		return feeds.filter { !feedIsFromThrottledDomain($0) }
-	}
-
-	static let throttledHosts = ["openrss.org"]
-
-	func feedIsFromThrottledDomain(_ feed: WebFeed) -> Bool {
-
-		guard let url = URL(unicodeString: feed.url) else {
-			return false
-		}
-
-		return urlIsThrottledDomain(url)
-	}
-
-	func urlIsThrottledDomain(_ url: URL) -> Bool {
-
-		guard let host = url.host() else {
-			return false
-		}
-		let lowerCaseHost = host.lowercased()
-
-		for throttledHost in Self.throttledHosts {
-			if lowerCaseHost.contains(throttledHost) {
-				return true
-			}
-		}
-
-		return false
-	}
-}
-
 // MARK: - Utility
 
 private extension Data {