Merge pull request #206 from Lickability/hides-logging

Hides Default Logging Capabilities on iOS 10+

Author: mbbischoff

PinpointKit/PinpointKit/Sources/Core/FeedbackTableViewDataSource.swift

@@ -47,15 +47,21 @@ final class FeedbackTableViewDataSource: NSObject, UITableViewDataSource {
     // MARK: - FeedbackTableViewDataSource
 
     private static func sectionsFromConfiguration(_ interfaceCustomization: InterfaceCustomization, screenshot: UIImage, logSupporting: LogSupporting, userEnabledLogCollection: Bool) -> [Section] {
-        guard logSupporting.logCollector != nil else { return [] }
+        var sections: [Section] = []
 
         let screenshotRow = Row.screenshot(screensot: screenshot, hintText: interfaceCustomization.interfaceText.feedbackEditHint, hintFont: interfaceCustomization.appearance.feedbackEditHintFont)
         let screenshotSection = Section.feedback(rows: [screenshotRow])
 
-        let collectLogsRow = Row.collectLogs(enabled: userEnabledLogCollection, title: interfaceCustomization.interfaceText.logCollectionPermissionTitle, font: interfaceCustomization.appearance.logCollectionPermissionFont, canView: logSupporting.logViewer != nil)
-        let collectLogsSection = Section.feedback(rows: [collectLogsRow])
+        sections.append(screenshotSection)
 
-        return [screenshotSection, collectLogsSection]
+        if logSupporting.logCollector != nil {
+            let collectLogsRow = Row.collectLogs(enabled: userEnabledLogCollection, title: interfaceCustomization.interfaceText.logCollectionPermissionTitle, font: interfaceCustomization.appearance.logCollectionPermissionFont, canView: logSupporting.logViewer != nil)
+            let collectLogsSection = Section.feedback(rows: [collectLogsRow])
+            
+            sections.append(collectLogsSection)
+        }
+        
+        return sections
     }
 
     private func checkmarkCell(for row: Row) -> CheckmarkCell {

PinpointKit/PinpointKit/Sources/Core/SystemLogCollector.swift

@@ -22,7 +22,19 @@ open class SystemLogCollector: LogCollector {
 
     private let logger: ASLLogger
 
-    public init(loggingType: LoggingType = .application) {
+    /**
+     Creates a new system logger.
+     
+     - parameter loggingType: Specifies the type of logs to collect.
+     
+     - warning: This initializer returns `nil` on iOS 10.0+. When running on iOS 10.0+, ASL is superseded by unified logging, for which there are no APIs to search or read log messages.
+     - seealso: https://developer.apple.com/reference/os/logging
+     */
+    public init?(loggingType: LoggingType = .application) {
+        if #available(iOS 10.0, *), loggingType == .application {
+            return nil
+        }
+        
         switch loggingType {
         case .application:
             logger = ASLLogger(bundleIdentifier: Bundle.main.bundleIdentifier ?? "")

PinpointKit/PinpointKitTests/SystemLogCollectorTests.swift

@@ -23,9 +23,9 @@ class SystemLogCollectorTests: XCTestCase {
 
         DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + .seconds(1)) {
 
-            let logs = systemLogCollector.retrieveLogs()
+            let systemLogs = systemLogCollector?.retrieveLogs()
 
-            guard let firstLog = logs.first else { return XCTFail("There should be at least 1 log.") }
+            guard let logs = systemLogs, let firstLog = logs.first else { return XCTFail("There should be at least 1 log.") }
 
             XCTAssertEqual(logs.count, 3)
             XCTAssertTrue(firstLog.contains(testString))
@@ -49,9 +49,9 @@ class SystemLogCollectorTests: XCTestCase {
         let expectation = defaultExpectation()
 
         DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + .seconds(1)) {
-            let logs = systemLogCollector.retrieveLogs()
+            let systemLogs = systemLogCollector?.retrieveLogs()
 
-            guard logs.count == 3 else { return XCTFail("Count should be 3.") }
+            guard let logs = systemLogs, logs.count == 3 else { return XCTFail("Count should be 3.") }
 
             let firstLog = logs[0]
             let secondLog = logs[1]
@@ -74,14 +74,14 @@ class SystemLogCollectorTests: XCTestCase {
 
         let systemLogCollector = SystemLogCollector(loggingType: .testing)
 
-        XCTAssertEqual(systemLogCollector.retrieveLogs().count, 0)
+        XCTAssertEqual(systemLogCollector?.retrieveLogs().count, 0)
     }
 
     func testLogCollectorHasNoLogsInitially() {
         let systemLogCollector = SystemLogCollector(loggingType: .testing)
 
-        let logs = systemLogCollector.retrieveLogs()
+        let logs = systemLogCollector?.retrieveLogs()
 
-        XCTAssertEqual(logs.count, 0)
+        XCTAssertEqual(logs?.count, 0)
     }
 }