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Remove favicon and feed icon image caches every 3 days

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This commit is contained in:
Maurice Parker
2019-09-16 17:09:49 -05:00
parent 18d6a278c7
commit f977a5e0cb
2 changed files with 32 additions and 2 deletions
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21
iOS/AppDelegate.swift
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@@ -178,12 +178,31 @@ private extension AppDelegate {
private func initializeDownloaders() {
let tempDir = FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask).first!
let faviconsFolderURL = tempDir.appendingPathComponent("Favicons")
let imagesFolderURL = tempDir.appendingPathComponent("Images")
let homePageToIconURL = tempDir.appendingPathComponent("HomePageToIconURLCache.plist")
// If the image disk cache hasn't been flushed for 3 days and the network is available, delete it
if let flushDate = AppDefaults.lastImageCacheFlushDate, flushDate.addingTimeInterval(3600*24*3) < Date() {
if let reachability = try? Reachability(hostname: "apple.com") {
if reachability.connection != .unavailable {
for tempItem in [faviconsFolderURL, imagesFolderURL, homePageToIconURL] {
do {
os_log(.info, log: self.log, "Removing cache file: %@", tempItem.absoluteString)
try FileManager.default.removeItem(at: tempItem)
} catch {
os_log(.error, log: self.log, "Could not delete cache file: %@", error.localizedDescription)
}
}
AppDefaults.lastImageCacheFlushDate = Date()
}
}
}
try! FileManager.default.createDirectory(at: faviconsFolderURL, withIntermediateDirectories: true, attributes: nil)
let faviconsFolder = faviconsFolderURL.absoluteString
let faviconsFolderPath = faviconsFolder.suffix(from: faviconsFolder.index(faviconsFolder.startIndex, offsetBy: 7))
faviconDownloader = FaviconDownloader(folder: String(faviconsFolderPath))
let imagesFolderURL = tempDir.appendingPathComponent("Images")
let imagesFolder = imagesFolderURL.absoluteString
let imagesFolderPath = imagesFolder.suffix(from: imagesFolder.index(imagesFolder.startIndex, offsetBy: 7))
try! FileManager.default.createDirectory(at: imagesFolderURL, withIntermediateDirectories: true, attributes: nil)