[EMBR-5747] Adding url ignore list to URLSessionCaptureService

Sources/EmbraceCore/Capture/Network/URLSessionCaptureService+Options.swift

@@ -15,13 +15,18 @@ extension URLSessionCaptureService {
         /// before the Embrace SDK captures their data.
         @objc public let requestsDataSource: URLSessionRequestsDataSource?
 
-        @objc public init(injectTracingHeader: Bool, requestsDataSource: URLSessionRequestsDataSource?) {
+        /// List of urls to be ignored by this service.
+        /// Any request's url that contains any of these strings will not be captured.
+        @objc public let ignoredURLs: [String]
+
+        @objc public init(injectTracingHeader: Bool, requestsDataSource: URLSessionRequestsDataSource?, ignoredURLs: [String]) {
             self.injectTracingHeader = injectTracingHeader
             self.requestsDataSource = requestsDataSource
+            self.ignoredURLs = ignoredURLs
         }
 
         @objc public convenience override init() {
-            self.init(injectTracingHeader: true, requestsDataSource: nil)
+            self.init(injectTracingHeader: true, requestsDataSource: nil, ignoredURLs: [])
         }
     }
 }

Sources/EmbraceCore/Capture/Network/URLSessionCaptureService.swift

@@ -80,6 +80,10 @@ public final class URLSessionCaptureService: CaptureService, URLSessionTaskHandl
     var requestsDataSource: URLSessionRequestsDataSource? {
         return options.requestsDataSource
     }
+
+    var ignoredURLs: [String] {
+        return options.ignoredURLs
+    }
 }
 
 // swiftlint:disable line_length

Sources/EmbraceCore/Capture/Network/URLSessionTaskHandler.swift

@@ -26,6 +26,7 @@ protocol URLSessionTaskHandlerDataSource: AnyObject {
 
     var injectTracingHeader: Bool { get }
     var requestsDataSource: URLSessionRequestsDataSource? { get }
+    var ignoredURLs: [String] { get }
 }
 
 final class DefaultURLSessionTaskHandler: URLSessionTaskHandler {
@@ -69,6 +70,11 @@ final class DefaultURLSessionTaskHandler: URLSessionTaskHandler {
                 return
             }
 
+            // check ignored urls
+            guard shouldCapture(url: url) else {
+                return
+            }
+
             // get modified request from data source
             request = self.dataSource?.requestsDataSource?.modifiedRequest(for: request) ?? request
 
@@ -211,6 +217,20 @@ final class DefaultURLSessionTaskHandler: URLSessionTaskHandler {
 
         return nil
     }
+
+    func shouldCapture(url: URL) -> Bool {
+        guard let list = dataSource?.ignoredURLs else {
+            return true
+        }
+
+        for str in list {
+            if url.absoluteString.contains(str) {
+                return false
+            }
+        }
+
+        return true
+    }
 }
 
 private extension DefaultURLSessionTaskHandler {

Tests/EmbraceCoreTests/Capture/Network/DefaultURLSessionTaskHandlerTests.swift

@@ -18,6 +18,7 @@ class MockURLSessionTaskHandlerDataSource: URLSessionTaskHandlerDataSource {
 
     var injectTracingHeader = false
     var requestsDataSource: URLSessionRequestsDataSource?
+    var ignoredURLs: [String] = []
 }
 
 class MockURLSessionRequestsDataSource: NSObject, URLSessionRequestsDataSource {
@@ -43,6 +44,7 @@ class DefaultURLSessionTaskHandlerTests: XCTestCase {
 
         dataSource = MockURLSessionTaskHandlerDataSource()
         dataSource.otel = otel
+        dataSource.ignoredURLs = []
     }
 
     // MARK: - Create Tests
@@ -202,6 +204,25 @@ class DefaultURLSessionTaskHandlerTests: XCTestCase {
         whenInvokingFinish()
         thenSpanHasTheCorrectBodySize(4)
     }
+
+    func test_ignoredURLs_matches() {
+        givenTaskHandler()
+        givenIgnoredURLs()
+        givenAnURLSessionTask()
+        whenInvokingCreate(withoutWaiting: true)
+
+        wait {
+            return self.otel.spanProcessor.startedSpans.count == 0
+        }
+    }
+
+    func test_ignoredURLs_no_match() {
+        givenTaskHandler()
+        givenIgnoredURLs()
+        givenAnURLSessionTask(urlString: "https://ThisIsAUrl/with/some/path")
+        whenInvokingCreate()
+        thenHTTPNetworkSpanShouldBeCreated()
+    }
 }
 
 private extension DefaultURLSessionTaskHandlerTests {
@@ -224,6 +245,10 @@ private extension DefaultURLSessionTaskHandlerTests {
         dataSource.requestsDataSource = requestsDataSource
     }
 
+    func givenIgnoredURLs() {
+        dataSource.ignoredURLs = ["embrace.io"]
+    }
+
     func givenHandlerCreatedASpan(withResponse response: URLResponse? = nil) {
         givenAnURLSessionTask(response: response)
         sut.create(task: task)

Tests/EmbraceIOTests/CaptureServiceBuilderTests.swift

@@ -46,7 +46,7 @@ class CaptureServiceBuilderTests: XCTestCase {
         let builder = CaptureServiceBuilder()
 
         // when adding a URLSessionCaptureService with custom options
-        let options = URLSessionCaptureService.Options(injectTracingHeader: false, requestsDataSource: nil)
+        let options = URLSessionCaptureService.Options(injectTracingHeader: false, requestsDataSource: nil, ignoredURLs: [])
         builder.add(.urlSession(options: options))
 
         // when adding the defaults
@@ -117,7 +117,7 @@ class CaptureServiceBuilderTests: XCTestCase {
         builder.add(.urlSession())
 
         // and then adding it again
-        let options = URLSessionCaptureService.Options(injectTracingHeader: false, requestsDataSource: nil)
+        let options = URLSessionCaptureService.Options(injectTracingHeader: false, requestsDataSource: nil, ignoredURLs: [])
         builder.add(.urlSession(options: options))
 
         // then the list contains the correct services
@@ -134,7 +134,7 @@ class CaptureServiceBuilderTests: XCTestCase {
         let builder = CaptureServiceBuilder()
 
         // when adding a URLSessionCaptureService
-        let options = URLSessionCaptureService.Options(injectTracingHeader: false, requestsDataSource: nil)
+        let options = URLSessionCaptureService.Options(injectTracingHeader: false, requestsDataSource: nil, ignoredURLs: [])
         builder.add(.urlSession(options: options))
 
         // then the list contains the capture service