ns_address_validation

LoopFollow.xcodeproj/project.pbxproj

@@ -8,6 +8,7 @@
 
 /* Begin PBXBuildFile section */
 		3F1335F351590E573D8E6962 /* Pods_LoopFollow.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = A7D55B42A22051DAD69E89D0 /* Pods_LoopFollow.framework */; };
+		DD07B5C929E2F9C400C6A635 /* NightscoutUtils.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD07B5C829E2F9C400C6A635 /* NightscoutUtils.swift */; };
 		DD152D3B24C01B2300361FA2 /* InfoDisplaySettingsViewController.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD152D3A24C01B2300361FA2 /* InfoDisplaySettingsViewController.swift */; };
 		DD98F54424BCEFEE0007425A /* ShareClientExtension.swift in Sources */ = {isa = PBXBuildFile; fileRef = DD98F54324BCEFEE0007425A /* ShareClientExtension.swift */; };
 		DDCF979424C0D380002C9752 /* UIViewExtension.swift in Sources */ = {isa = PBXBuildFile; fileRef = DDCF979324C0D380002C9752 /* UIViewExtension.swift */; };
@@ -174,6 +175,7 @@
 /* Begin PBXFileReference section */
 		059B0FA59AABFE72FE13DDDA /* Pods-LoopFollow.release.xcconfig */ = {isa = PBXFileReference; includeInIndex = 1; lastKnownFileType = text.xcconfig; name = "Pods-LoopFollow.release.xcconfig"; path = "Target Support Files/Pods-LoopFollow/Pods-LoopFollow.release.xcconfig"; sourceTree = "<group>"; };
 		A7D55B42A22051DAD69E89D0 /* Pods_LoopFollow.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = Pods_LoopFollow.framework; sourceTree = BUILT_PRODUCTS_DIR; };
+		DD07B5C829E2F9C400C6A635 /* NightscoutUtils.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = NightscoutUtils.swift; sourceTree = "<group>"; };
 		DD152D3A24C01B2300361FA2 /* InfoDisplaySettingsViewController.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = InfoDisplaySettingsViewController.swift; sourceTree = "<group>"; };
 		DD98F54324BCEFEE0007425A /* ShareClientExtension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = ShareClientExtension.swift; sourceTree = "<group>"; };
 		DDCF979324C0D380002C9752 /* UIViewExtension.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = UIViewExtension.swift; sourceTree = "<group>"; };
@@ -603,6 +605,7 @@
 				FC1BDD2E24A232A3001B652C /* DataStructs.swift */,
 				FCD2A27C24C9D044009F7B7B /* Globals.swift */,
 				FC8589BE252B54F500C8FC73 /* Mobileprovision.swift */,
+				DD07B5C829E2F9C400C6A635 /* NightscoutUtils.swift */,
 			);
 			path = helpers;
 			sourceTree = "<group>";
@@ -866,6 +869,7 @@
 				FC3AE7B5249E8E0E00AAE1E0 /* LoopFollow.xcdatamodeld in Sources */,
 				FCC6886F2489A53800A0279D /* AppConstants.swift in Sources */,
 				FC16A97A24996673003D6245 /* NightScout.swift in Sources */,
+				DD07B5C929E2F9C400C6A635 /* NightscoutUtils.swift in Sources */,
 				FCC6886924898FB100A0279D /* UserDefaultsValueGroups.swift in Sources */,
 				FC16A97D24996747003D6245 /* Alarms.swift in Sources */,
 				FC16A97B249966A3003D6245 /* AlarmSound.swift in Sources */,

LoopFollow/Controllers/NightScout.swift

@@ -1766,4 +1766,37 @@ extension MainViewController {
         }
         
     }
+    
+    static func createURLRequest(url: String, token: String?, path: String) -> URLRequest? {
+        var requestURLString = "\(url)\(path)"
+        
+        if let token = token {
+            let encodedToken = token.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed) ?? token
+            requestURLString += "?token=\(encodedToken)"
+        }
+        
+        guard let requestURL = URL(string: requestURLString) else {
+            return nil
+        }
+        
+        var request = URLRequest(url: requestURL)
+        request.httpMethod = "GET"
+        return request
+    }
+    
+    static func verifyURLAndToken(urlUser: String, token: String?, completion: @escaping (Bool) -> Void) {
+        guard let request = createURLRequest(url: urlUser, token: token, path: "/api/v1/status") else {
+            completion(false)
+            return
+        }
+        
+        let task = URLSession.shared.dataTask(with: request) { (_, response, error) in
+            if let httpResponse = response as? HTTPURLResponse, httpResponse.statusCode == 200 {
+                completion(true)
+            } else {
+                completion(false)
+            }
+        }
+        task.resume()
+    }
 }

LoopFollow/ViewControllers/SettingsViewController.swift

@@ -14,7 +14,8 @@ import EventKitUI
 class SettingsViewController: FormViewController {
 
    var appStateController: AppStateController?
-    
+    var statusLabelRow: LabelRow!
+
     func showHideNSDetails() {
         var isHidden = false
         var isEnabled = true
@@ -70,45 +71,56 @@ class SettingsViewController: FormViewController {
                guard let value = row.value else { return }
                UserDefaultsRepository.showNS.value = value
        }
-        <<< TextRow(){ row in
-            row.title = "URL"
-            row.placeholder = "https://mycgm.herokuapp.com"
-            row.value = UserDefaultsRepository.url.value
-            row.hidden = "$showNS == false"
-        }.cellSetup { (cell, row) in
-            cell.textField.autocorrectionType = .no
-        }.onChange { row in
-            guard let value = row.value else {
-                UserDefaultsRepository.url.value = ""
-                self.showHideNSDetails()
-                return }
-            // check the format of the URL entered by the user and trim away any spaces or "/" at the end
-            var urlNSInput = value.replacingOccurrences(of: "\\s+$", with: "", options: .regularExpression)
-            if urlNSInput.last == "/" {
-                urlNSInput = String(urlNSInput.dropLast())
-            }
-            UserDefaultsRepository.url.value = urlNSInput.lowercased()
-            // set the row value back to the correctly formatted URL so that the user immediately sees how it should have been written
-            row.value = UserDefaultsRepository.url.value
-            self.showHideNSDetails()
-            globalVariables.nsVerifiedAlert = 0
-            }
-        <<< TextRow(){ row in
-            row.title = "NS Token"
-            row.placeholder = "Leave blank if not using tokens"
-            row.value = UserDefaultsRepository.token.value
-            row.hidden = "$showNS == false"
-        }.cellSetup { (cell, row) in
-            cell.textField.autocorrectionType = .no
-        }.onChange { row in
-            if row.value == nil {
-                UserDefaultsRepository.token.value = ""
-            }
-            guard let value = row.value else { return }
-            UserDefaultsRepository.token.value = value
-            globalVariables.nsVerifiedAlert = 0
-        }
-       
+       <<< TextRow() { row in
+           row.title = "URL"
+           row.placeholder = "https://mycgm.herokuapp.com"
+           row.value = UserDefaultsRepository.url.value
+           row.hidden = "$showNS == false"
+       }.cellSetup { (cell, row) in
+           cell.textField.autocorrectionType = .no
+       }.onChange { row in
+           guard let value = row.value else {
+               UserDefaultsRepository.url.value = ""
+               self.showHideNSDetails()
+               return }
+           // check the format of the URL entered by the user and trim away any spaces or "/" at the end
+           var urlNSInput = value.replacingOccurrences(of: "\\s+$", with: "", options: .regularExpression)
+           if urlNSInput.last == "/" {
+               urlNSInput = String(urlNSInput.dropLast())
+           }
+           UserDefaultsRepository.url.value = urlNSInput.lowercased()
+           // set the row value back to the correctly formatted URL so that the user immediately sees how it should have been written
+           row.value = UserDefaultsRepository.url.value
+           self.showHideNSDetails()
+           globalVariables.nsVerifiedAlert = 0
+           
+           // Verify Nightscout URL and token
+           self.checkNightscoutStatus()
+       }
+       <<< TextRow() { row in
+           row.title = "NS Token"
+           row.placeholder = "Leave blank if not using tokens"
+           row.value = UserDefaultsRepository.token.value
+           row.hidden = "$showNS == false"
+       }.cellSetup { (cell, row) in
+           cell.textField.autocorrectionType = .no
+       }.onChange { row in
+           if row.value == nil {
+               UserDefaultsRepository.token.value = ""
+           }
+           guard let value = row.value else { return }
+           UserDefaultsRepository.token.value = value
+           globalVariables.nsVerifiedAlert = 0
+           
+           // Verify Nightscout URL and token
+           self.checkNightscoutStatus()
+       }
+       <<< LabelRow() { row in
+           row.title = "NS Status"
+           row.value = "Checking..."
+           statusLabelRow = row
+           row.hidden = "$showNS == false"
+       }
        <<< SwitchRow("loopUser"){ row in
            row.title = "Download Loop/FreeAPS Data"
            row.tag = "loopUser"
@@ -240,10 +252,38 @@ class SettingsViewController: FormViewController {
             +++ Section(header: "App Expiration", footer: String(expiration.description))
     
         showHideNSDetails()
-      
-    
+       checkNightscoutStatus()
     }
     
+    func updateStatusLabel(error: NightscoutUtils.NightscoutError?) {
+        if let error = error {
+            switch error {
+            case .invalidURL:
+                statusLabelRow.value = "Invalid URL"
+            case .networkError:
+                statusLabelRow.value = "Network Error"
+            case .invalidToken:
+                statusLabelRow.value = "Invalid Token"
+            case .tokenRequired:
+                statusLabelRow.value = "Token Required"
+            case .siteNotFound:
+                statusLabelRow.value = "Site Not Found"
+            case .unknown:
+                statusLabelRow.value = "Unknown Error"
+            case .emptyAddress:
+                statusLabelRow.value = "Address Empty"
+            }
+        } else {
+            statusLabelRow.value = "OK"
+        }
+        statusLabelRow.updateCell()
+    }
     
-
+    func checkNightscoutStatus() {
+        NightscoutUtils.verifyURLAndToken(urlUser: UserDefaultsRepository.url.value, token: UserDefaultsRepository.token.value) { error in
+            DispatchQueue.main.async {
+                self.updateStatusLabel(error: error)
+            }
+        }
+    }
 }

LoopFollow/helpers/NightscoutUtils.swift

@@ -0,0 +1,74 @@
+//
+//  NightscoutUtils.swift
+//  LoopFollow
+//
+//  Created by Jonas Björkert on 2023-04-09.
+//  Copyright © 2023 Jon Fawcett. All rights reserved.
+//
+
+import Foundation
+
+class NightscoutUtils {
+    enum NightscoutError {
+        case emptyAddress
+        case invalidURL
+        case networkError
+        case siteNotFound
+        case invalidToken
+        case tokenRequired
+        case unknown
+    }
+    
+    static func createURLRequest(url: String, token: String?, path: String) -> URLRequest? {
+        var requestURLString = "\(url)\(path)"
+        
+        if let token = token {
+            let encodedToken = token.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed) ?? token
+            requestURLString += "?token=\(encodedToken)"
+        }
+        
+        guard let requestURL = URL(string: requestURLString) else {
+            return nil
+        }
+        
+        var request = URLRequest(url: requestURL)
+        request.httpMethod = "GET"
+        return request
+    }
+    
+    static func verifyURLAndToken(urlUser: String, token: String?, completion: @escaping (NightscoutError?) -> Void) {
+        if urlUser.isEmpty {
+            completion(.emptyAddress)
+            return
+        }
+
+        guard let request = createURLRequest(url: urlUser, token: token, path: "/api/v1/status") else {
+            completion(.invalidURL)
+            return
+        }
+        
+        let task = URLSession.shared.dataTask(with: request) { data, response, error in
+            if let httpResponse = response as? HTTPURLResponse {
+                switch httpResponse.statusCode {
+                case 200:
+                    completion(nil)
+                case 401:
+                    if token == nil || token!.isEmpty {
+                        completion(.tokenRequired)
+                    } else {
+                        completion(.invalidToken) // Change this from "unauthorized"
+                    }
+                default:
+                    completion(.unknown)
+                }
+            }  else {
+                if let _ = error {
+                    completion(.siteNotFound)
+                } else {
+                    completion(.networkError)
+                }
+            }
+        }
+        task.resume()
+    }
+}