您好我正在编写一个简单的内容拦截器应用程序。在这个应用程序中，我想允许用户添加他想要阻止并阻止它的网站但由于某些原因我的内容拦截器由于某些原因不阻止新添加的网站。我使用SFContentBlockerManager.reloadContentBlocker（withIdentifier：blockerIdentifier）它打印成功但由于某些原因它不起作用。
import UIKit
import Cartography
import SwiftyJSON
import SafariServices
protocol MyProtocol{
func DeleteSite(num:Int)
}
class ViewController: UIViewController, UITableViewDelegate, UITableViewDataSource, MyProtocol {
var tableView: UITableView = UITableView()
var arr = [String]()
func DeleteSite(num: Int) {
if let path = Bundle.main.path(forResource: "blockerList", ofType: "json"){
guard let data = NSData(contentsOf: URL(fileURLWithPath: path)) else{
return
}
// JSON(data: data as Data)[num] = nil
var jsonObj = JSON(data: data as Data)
// jsonObj.arrayObject?.remove(at: num)
print(jsonObj)
if jsonObj != JSON.null {
// jsonObj.arrayObject[num] =
jsonObj[num] = nil
// print("Hello I do work here \(jsonObj.arrayValue.remove(at: num))")
tableView.reloadData()
// jsonObj.arrayObject?.remove(at: num)
} else {
print("Could not get json from file, make sure that file contains valid json.")
}
}
}
override func viewDidLoad() {
super.viewDidLoad()
let blockerIdentifier = "saltaim.SelfControl2.blocker"
SFContentBlockerManager.reloadContentBlocker(withIdentifier: blockerIdentifier) {error in
if error == nil {
print("Success")
} else {
print("----------------------------------------------")
print(error)
print("----------------------------------------------")
}
}
super.view.backgroundColor = UIColor.red;
//let blockerIdentifier = "com.appsfoundation.ContentBlocker.Blocker"
//SFContentBlockerManager.
// print("--------------------")
//print(FileManager.default.c)
//Bundle(for: ContentBlockerRequestHandler)
//print(Bundle.main.path(forResource: "blocker/blockerList", ofType: "json"))
//print(Bundle.main.path(forResource: "blockerList", ofType: "json"))
//print("--------------------")
//Bundle.main.url
//Bundle.main.pa
//FileManager.default.containerURL(forSecurityApplicationGroupIdentifier: <#T##String#>)
// print(Bundle.main.url(forResource: "blocker/blockerList", withExtension: "json"))
// Bundle.init(for: ContentBlockerRequestHandler)
// print(Bundle.main.paths(forResourcesOfType: "blockerList.json", inDirectory: "blocker"))
tableView.register(MyTableViewCell.self, forCellReuseIdentifier: "cell")
if let path = Bundle.main.path(forResource: "blockerList", ofType: "json"){
guard let data = NSData(contentsOf: URL(fileURLWithPath: path)) else{
return
}
let jsonObj = JSON(data: data as Data)
print(jsonObj)
if jsonObj != JSON.null {
// print("Hello I do work here \(jsonObj["trigger"])")
guard let arr1 = jsonObj.array else{
return;
}
var count = arr1.count;
for index in 0...count-1{
//print("-------")
// print(jsonObj[index]["trigger"]["url-filter"].stringValue)
arr.append(jsonObj[index]["trigger"]["url-filter"].stringValue);
}
//for
} else {
print("Could not get json from file, make sure that file contains valid json.")
}
//
}
// arr.append("Hello")
// arr.append("my name is ")
let button = UIButton();
button.setTitle("+", for: .normal)
button.addTarget(self, action: #selector(buttonPressed), for: .touchUpInside)
// button.titleLabel?.text = "+"
self.view.addSubview(tableView)
self.view.addSubview(button)
tableView.delegate = self
tableView.dataSource = self
constrain(tableView, view, button){
tableView, view, button in
tableView.width == view.width
tableView.height == view.height - 50
tableView.top == view.top
tableView.right == view.right
button.height == 50
button.width == view.width
button.top == view.bottom - 50
button.right == view.right
}
//arr = Array()
// Do any additional setup after loading the view, typically from a nib.
// self.view.backgroundColor = UIColor.redColor();
}
func buttonPressed(){
// print("I was pressed")
//var alert = UIAlertView();
//alert.title = "Enter a website";
// alert.alertViewStyle = UIAlertViewStyle.plainTextInput
// alert.addB
//alert.addButton(withTitle: "Done")
//alert.addButton(withTitle: "Cancel")
var s:String?
var alert = UIAlertController(title: "Alert", message: "Enter website that you would like to block", preferredStyle: UIAlertControllerStyle.alert)
alert.addTextField { (text) in
text.placeholder = "http://";
s=text.text
}
let action = UIAlertAction(title: "Done", style: UIAlertActionStyle.default) { (action: UIAlertAction) in
guard let s = alert.textFields?[0].text else{
return
}
//var c = ["action":["type": "block"], "trigger":["url-filter":s]];
//print(c)
let path = Bundle.main.path(forResource: "blockerList", ofType: "json")!
var readString = "" // Used to store the file contents
do {
// Read the file contents
readString = try String.init(contentsOf: URL(fileURLWithPath: path))
//readString = fileURL.absoluteString
// readString = try String(contentsOfURL: fileURL)
} catch let error as NSError {
print("Failed reading from URL: \(URL(fileURLWithPath: path)), Error: " + error.localizedDescription)
}
// var size = (readString.characters.count - 1)
//print("The end index is \(readString.endIndex)")
print("------------------------")
readString = readString.replacingOccurrences(of: "]", with: "")
// print(readString.endIndex)
// readString = String(readString.characters.dropLast())
print(readString)
print("--------------------------")
// readString.remove(at: readString.endIndex)
// readString = readString.substring(to: readString.index(before: readString.endIndex))
readString += ",{\"action\":{\"type\":\"block\"},\"trigger\":{\"url-filter\":\"" + s+"\"}}]"
print("File Text: \(readString)")
// let fileName = "blockerList"
// let DocumentDirURL = try! FileManager.default.url(for: ., in: .userDomainMask, appropriateFor: nil, create: true)
// let fileURL = DocumentDirURL.appendingPathComponent(fileName).appendingPathExtension("json")
print("FilePath: \(path)")
let fileHandler = try! FileHandle(forWritingTo: URL(fileURLWithPath: path))
//fileHandler.
//fileHandler.seekToEndOfFile()
fileHandler.write(readString.data(using: String.Encoding.utf8, allowLossyConversion: false)!)
// fileHandler.write("Hello".data(using: String.Encoding.utf8, allowLossyConversion: false)!)
// fileHandler.write(c.description.data(using: String.Encoding.utf8, allowLossyConversion: false)!)
fileHandler.closeFile()
var readString1 = "" // Used to store the file contents
do {
// Read the file contents
readString1 = try String.init(contentsOf: URL(fileURLWithPath: path))
//readString = fileURL.absoluteString
// readString = try String(contentsOfURL: fileURL)
} catch let error as NSError {
print("Failed reading from URL: \(URL(fileURLWithPath: path)), Error: " + error.localizedDescription)
}
print("File Text: \(readString1)")
let blockerIdentifier = "saltaim.SelfControl2.blocker"
SFContentBlockerManager.reloadContentBlocker(withIdentifier: blockerIdentifier) {error in
if error == nil {
print("Success")
} else {
print("----------------------------------------------")
print(error)
print("----------------------------------------------")
}
}
}
let action2 = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.cancel) { (UIAlertAction) in
self.dismiss(animated: true, completion: nil)
}
alert.addAction(action)
alert.addAction(action2)
self.present(alert, animated: true, completion: nil)
//self.viewC
//presentedViewController(alert)
//alert.addA
// alert.show()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int
{
return arr.count
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat
{
return 50
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell
{
// Code here
// let cell = UITableViewCell(style: UITableViewCellStyle.default, reuseIdentifier: "cell")
var site = arr[(indexPath as NSIndexPath).item]
let cell = MyTableViewCell(num: (indexPath as NSIndexPath).item,site: site, style: UITableViewCellStyle.default, reuseIdentifier: "cell")
cell.delegate = self;
// let cell = MyTableViewCell(style: UITableViewCellStyle.default, reuseIdentifier: "cell")
// cell.site = arr[(indexPath as NSIndexPath).item]
// let cell1 = MyTableViewCell();
// let cell = MyTableV
//cell.t
//let cell1 = tableView.dequeueReusableCell(withIdentifier: "cell")
//cell.textLabel?.text = "Hello"
//cell.textLabel?.text = arr[(indexPath as NSIndexPath).item]
return cell;
}
}
答案 0 :(得分：2)
当我编写自己的内容拦截器时，我遇到了类似的问题。创建内容阻止程序扩展时，还会创建扩展名从中读取的json文件。现在，重要的部分是扩展ONLY从位于扩展的bundle目录中的文件读取。
从我所看到的，您正在写入主应用程序包中的json文件，然后重新加载内容拦截器。所以内容拦截器只是简单地查看它自己的目录中的文件（再次，从主bundle目录中分离）并加载该json文件。
要解决此问题，您需要将文件更改实际写入扩展束目录中的json文件。
以下是一个例子：
let groupUrl: NSURL = fileManager.containerURLForSecurityApplicationGroupIdentifier("group.com.mygroup")!
if let path = NSURL(string: "blockerList.json", relativeToURL: groupUrl) {
// write your json data to the path here
SFContentBlockerManager.reloadContentBlockerWithIdentifier("com.my.extension.identifier", completionHandler: nil)
}
另一个需要注意的重要事项是，您必须要求特殊许可才能从扩展程序包中读取和写入。