Adds “Disable Response Caching” debug setting

When enabled, AltStore will ignore cached responses for certain requests and will always make a new request to the server. This is useful for development when repeatedly testing changes to remote files.

Limited to UpdateKnownSourcesOperation for now, but will eventually affect fetching sources as well.

AltStore/Operations/UpdateKnownSourcesOperation.swift

@@ -30,11 +30,26 @@ extension UpdateKnownSourcesOperation
 
 class UpdateKnownSourcesOperation: ResultOperation<([KnownSource], [KnownSource])>
 {
+    private let session: URLSession
+    
+    override init()
+    {
+        let configuration = URLSessionConfiguration.default
+        
+        if UserDefaults.standard.responseCachingDisabled
+        {
+            configuration.requestCachePolicy = .reloadIgnoringLocalCacheData
+            configuration.urlCache = nil
+        }
+        
+        self.session = URLSession(configuration: configuration)
+    }
+    
     override func main()
     {
         super.main()
         
-        let dataTask = URLSession.shared.dataTask(with: .sources) { (data, response, error) in
+        let dataTask = self.session.dataTask(with: .sources) { (data, response, error) in
             do
             {
                 if let response = response as? HTTPURLResponse

AltStore/Settings/Settings.storyboard

@@ -729,15 +729,15 @@
                                             <segue destination="GBh-rB-juy" kind="show" identifier="showRefreshAttempts" id="K2i-nF-6qa"/>
                                         </connections>
                                     </tableViewCell>
-                                    <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="rE2-P4-OaE" customClass="InsetGroupTableViewCell" customModule="SideStore" customModuleProvider="target">
+                                    <tableViewCell clipsSubviews="YES" contentMode="scaleToFill" preservesSuperviewLayoutMargins="YES" selectionStyle="default" indentationWidth="10" rowHeight="51" id="XW5-Zc-nMH" customClass="InsetGroupTableViewCell" customModule="AltStore" customModuleProvider="target">
-                                        <rect key="frame" x="0.0" y="1074" width="375" height="51"/>
+                                        <rect key="frame" x="0.0" y="1201" width="375" height="51"/>
                                         <autoresizingMask key="autoresizingMask"/>
-                                        <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="rE2-P4-OaE" id="qIT-rz-ZUb">
+                                        <tableViewCellContentView key="contentView" opaque="NO" clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="center" preservesSuperviewLayoutMargins="YES" insetsLayoutMarginsFromSafeArea="NO" tableViewCell="XW5-Zc-nMH" id="AtM-bL-7pS">
                                             <rect key="frame" x="0.0" y="0.0" width="375" height="51"/>
                                             <autoresizingMask key="autoresizingMask"/>
                                             <subviews>
-                                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" ambiguous="YES" text="View Error Log" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="PWC-OG-5jx">
+                                                <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Disable Response Caching" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="2ox-HD-0UT">
-                                                    <rect key="frame" x="30" y="15.5" width="119" height="20.5"/>
+                                                    <rect key="frame" x="30" y="15.5" width="215.5" height="20.5"/>
                                                     <fontDescription key="fontDescription" type="boldSystem" pointSize="17"/>
                                                     <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                                     <nil key="highlightedColor"/>
@@ -887,6 +887,19 @@
                                                 <constraint firstAttribute="trailingMargin" secondItem="0dh-yd-7i9" secondAttribute="trailing" id="TFW-nu-jo4"/>
                                                 <constraint firstItem="eds-Dj-36y" firstAttribute="centerY" secondItem="yjL-Mu-HTk" secondAttribute="centerY" id="YiJ-OF-FXE"/>
                                             </constraints>
+                                                <switch opaque="NO" contentMode="scaleToFill" horizontalHuggingPriority="750" verticalHuggingPriority="750" contentHorizontalAlignment="center" contentVerticalAlignment="center" on="YES" translatesAutoresizingMaskIntoConstraints="NO" id="e30-w4-5fk">
+                                                    <rect key="frame" x="296" y="10" width="51" height="31"/>
+                                                    <connections>
+                                                        <action selector="toggleDisableResponseCaching:" destination="aMk-Xp-UL8" eventType="valueChanged" id="uuG-Gf-7GK"/>
+                                                    </connections>
+                                                </switch>
+                                            </subviews>
+                                            <constraints>
+                                                <constraint firstItem="2ox-HD-0UT" firstAttribute="centerY" secondItem="AtM-bL-7pS" secondAttribute="centerY" id="07n-jt-3rz"/>
+                                                <constraint firstItem="2ox-HD-0UT" firstAttribute="leading" secondItem="AtM-bL-7pS" secondAttribute="leadingMargin" id="Koi-9G-bG8"/>
+                                                <constraint firstAttribute="trailingMargin" secondItem="e30-w4-5fk" secondAttribute="trailing" id="Wa7-n6-lcl"/>
+                                                <constraint firstItem="e30-w4-5fk" firstAttribute="centerY" secondItem="AtM-bL-7pS" secondAttribute="centerY" id="n7R-aQ-FBX"/>
+                                            </constraints>
                                         </tableViewCellContentView>
                                         <color key="backgroundColor" white="1" alpha="0.14999999999999999" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
                                         <edgeInsets key="layoutMargins" top="8" left="30" bottom="8" right="30"/>
@@ -894,7 +907,7 @@
                                             <userDefinedRuntimeAttribute type="number" keyPath="style">
                                                 <integer key="value" value="3"/>
                                             </userDefinedRuntimeAttribute>
-                                            <userDefinedRuntimeAttribute type="boolean" keyPath="isSelectable" value="YES"/>
+                                            <userDefinedRuntimeAttribute type="boolean" keyPath="isSelectable" value="NO"/>
                                         </userDefinedRuntimeAttributes>
                                     </tableViewCell>
                                 </cells>
@@ -912,6 +925,7 @@
                         <outlet property="backgroundRefreshSwitch" destination="DPu-zD-Als" id="eiG-Hv-Vko"/>
                         <outlet property="disableAppLimitSwitch" destination="1aa-og-ZXD" id="oVL-Md-yZ8"/>
                         <outlet property="noIdleTimeoutSwitch" destination="iQA-wm-5ag" id="jHC-js-q0Y"/>
+                        <outlet property="disableResponseCachingSwitch" destination="e30-w4-5fk" id="Duy-Yb-eo1"/>
                         <outlet property="enforceThreeAppLimitSwitch" destination="Oie-te-KSQ" id="jKn-t1-gyk"/>
                         <outlet property="versionLabel" destination="bUR-rp-Nw2" id="85I-5R-hqz"/>
                     </connections>

AltStore/Settings/SettingsViewController.swift

@@ -74,6 +74,7 @@ extension SettingsViewController
         case anisetteServers
         case advancedSettings
     
+        case responseCaching
     }
 }
 
@@ -96,6 +97,7 @@ final class SettingsViewController: UITableViewController
     
     @IBOutlet private var refreshSideJITServer: UILabel!
     @IBOutlet private var enforceThreeAppLimitSwitch: UISwitch!
+    @IBOutlet private var disableResponseCachingSwitch: UISwitch!
     
     @IBOutlet private var versionLabel: UILabel!
     
@@ -217,6 +219,7 @@ private extension SettingsViewController
         self.noIdleTimeoutSwitch.isOn = UserDefaults.standard.isIdleTimeoutDisableEnabled
         self.disableAppLimitSwitch.isOn = UserDefaults.standard.isAppLimitDisabled
         self.enforceThreeAppLimitSwitch.isOn = !UserDefaults.standard.ignoreActiveAppsLimit
+        self.disableResponseCachingSwitch.isOn = UserDefaults.standard.responseCachingDisabled
         
         if self.isViewLoaded
         {
@@ -400,6 +403,11 @@ private extension SettingsViewController
         }
     }
     
+    @IBAction func toggleDisableResponseCaching(_ sender: UISwitch)
+    {
+        UserDefaults.standard.responseCachingDisabled = sender.isOn
+    }
+    
     @IBAction func addRefreshAppsShortcut()
     {
         guard let shortcut = INShortcut(intent: INInteraction.refreshAllApps().intent) else { return }
@@ -866,7 +874,7 @@ extension SettingsViewController
                 } else {
                     ELOG("UIApplication.openSettingsURLString invalid")
                 }
-            case .refreshAttempts, .errorLog: break
+            case .refreshAttempts, .errorLog, .responseCaching: break
 
             }
             

AltStoreCore/Extensions/UserDefaults+AltStore.swift

@@ -76,6 +76,7 @@ public extension UserDefaults
     @NSManaged var isCowExploitSupported: Bool
     
     @NSManaged var permissionCheckingDisabled: Bool
+    @NSManaged var responseCachingDisabled: Bool
     
     class func registerDefaults()
     {
@@ -125,5 +126,9 @@ public extension UserDefaults
             // Disable ignoreActiveAppsLimit if running iOS version that doesn't support MacDirtyCow.
             UserDefaults.standard.ignoreActiveAppsLimit = false
         }
+        
+        #if !BETA
+        UserDefaults.standard.responseCachingDisabled = false
+        #endif
     }
 }