SDK-605 add optional config to set the blacklist url

Author: echo-branch

Branch-SDK-Tests/BNCPreferenceHelperTests.m

@@ -12,30 +12,41 @@
 #import "BNCTestCase.h"
 
 @interface BNCPreferenceHelperTests : BNCTestCase
+@property (nonatomic, strong, readwrite) BNCPreferenceHelper *prefHelper;
 @end
 
 @implementation BNCPreferenceHelperTests
 
-#pragma mark - Default storage tests
+- (void)setUp {
+    self.prefHelper = [BNCPreferenceHelper new];
+}
+
+- (void)tearDown {
+
+}
+
 - (void)testPreferenceDefaults {
-    BNCPreferenceHelper *prefHelper = [[BNCPreferenceHelper alloc] init];
-    
-    // Defaults
-    XCTAssertEqual(prefHelper.timeout, 5.5);
-    XCTAssertEqual(prefHelper.retryInterval, 0);
-    XCTAssertEqual(prefHelper.retryCount, 3);
+    XCTAssertEqual(self.prefHelper.timeout, 5.5);
+    XCTAssertEqual(self.prefHelper.retryInterval, 0);
+    XCTAssertEqual(self.prefHelper.retryCount, 3);
 }
 
 - (void)testPreferenceSets {
-    BNCPreferenceHelper *prefHelper = [[BNCPreferenceHelper alloc] init];
+    self.prefHelper.retryCount = NSIntegerMax;
+    self.prefHelper.retryInterval = NSIntegerMax;
+    self.prefHelper.timeout = NSIntegerMax;
 
-    prefHelper.retryCount = NSIntegerMax;
-    prefHelper.retryInterval = NSIntegerMax;
-    prefHelper.timeout = NSIntegerMax;
+    XCTAssertEqual(self.prefHelper.retryCount, NSIntegerMax);
+    XCTAssertEqual(self.prefHelper.retryInterval, NSIntegerMax);
+    XCTAssertEqual(self.prefHelper.timeout, NSIntegerMax);
+}
+
+- (void)testBlacklistURL {
+    XCTAssertTrue([@"https://cdn.branch.io" isEqualToString:self.prefHelper.branchBlacklistURL]);
 
-    XCTAssertEqual(prefHelper.retryCount, NSIntegerMax);
-    XCTAssertEqual(prefHelper.retryInterval, NSIntegerMax);
-    XCTAssertEqual(prefHelper.timeout, NSIntegerMax);
+    NSString *customBlacklistURL = @"https://blacklist.branch.io";
+    self.prefHelper.branchBlacklistURL = customBlacklistURL;
+    XCTAssertTrue([customBlacklistURL isEqualToString:self.prefHelper.branchBlacklistURL]);
 }
 
 @end

Branch-SDK/Branch-SDK/BNCPreferenceHelper.h

@@ -46,6 +46,7 @@ NSURL* /* _Nonnull */ BNCURLForBranchDirectory(void);
 @property (strong, nonatomic) NSString *browserUserAgentString;
 @property (strong, atomic) NSString *referringURL;
 @property (strong, atomic) NSString *branchAPIURL;
+@property (nonatomic, strong, readwrite) NSString *branchBlacklistURL;
 @property (assign, atomic) BOOL      limitFacebookTracking;
 @property (strong, atomic) NSDate   *previousAppBuildDate;
 

Branch-SDK/Branch-SDK/BNCPreferenceHelper.m

@@ -108,6 +108,8 @@ - (id)init {
     _persistPrefsQueue = [[NSOperationQueue alloc] init];
     _persistPrefsQueue.maxConcurrentOperationCount = 1;
 
+    self.branchBlacklistURL = @"https://cdn.branch.io";
+    
     return self;
 }
 

Branch-SDK/Branch-SDK/BNCURLBlackList.m

@@ -123,8 +123,7 @@ - (void) refreshBlackListFromServerWithCompletion:(void (^) (NSError*error, NSAr
     self.error = nil;
     NSString *urlString = [self.blackListJSONURL absoluteString];
     if (!urlString) {
-        urlString = [NSString stringWithFormat:@"https://cdn.branch.io/sdk/uriskiplist_v%ld.json",
-            (long) self.blackListVersion+1];
+        urlString = [NSString stringWithFormat:@"%@/sdk/uriskiplist_v%ld.json", [BNCPreferenceHelper preferenceHelper].branchBlacklistURL, (long) self.blackListVersion+1];
     }
     NSMutableURLRequest *request =
         [NSMutableURLRequest requestWithURL:[NSURL URLWithString:urlString]