1 files changed, 0 insertions, 240 deletions
diff --git a/Firebase/Utilities/Reachability/GULReachabilityChecker.m b/Firebase/Utilities/Reachability/GULReachabilityChecker.m
deleted file mode 100644
index 1ddacdf..0000000
--- a/Firebase/Utilities/Reachability/GULReachabilityChecker.m
+++ /dev/null
@@ -1,240 +0,0 @@
-// Copyright 2017 Google
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-#import <Foundation/Foundation.h>
-
-#import "GULReachabilityChecker+Internal.h"
-#import "Private/GULReachabilityChecker.h"
-#import "Private/GULReachabilityMessageCode.h"
-
-#import <GoogleUtilities/GULLogger.h>
-#import <GoogleUtilities/GULReachabilityChecker.h>
-
-static GULLoggerService kGULLoggerReachability = @"[GULReachability]";
-
-static void ReachabilityCallback(SCNetworkReachabilityRef reachability,
-                                 SCNetworkReachabilityFlags flags,
-                                 void *info);
-
-static const struct GULReachabilityApi kGULDefaultReachabilityApi = {
-    SCNetworkReachabilityCreateWithName,
-    SCNetworkReachabilitySetCallback,
-    SCNetworkReachabilityScheduleWithRunLoop,
-    SCNetworkReachabilityUnscheduleFromRunLoop,
-    CFRelease,
-};
-
-static NSString *const kGULReachabilityUnknownStatus = @"Unknown";
-static NSString *const kGULReachabilityConnectedStatus = @"Connected";
-static NSString *const kGULReachabilityDisconnectedStatus = @"Disconnected";
-
-@interface GULReachabilityChecker ()
-
-@property(nonatomic, assign) const struct GULReachabilityApi *reachabilityApi;
-@property(nonatomic, assign) GULReachabilityStatus reachabilityStatus;
-@property(nonatomic, copy) NSString *host;
-@property(nonatomic, assign) SCNetworkReachabilityRef reachability;
-
-@end
-
-@implementation GULReachabilityChecker
-
-@synthesize reachabilityApi = reachabilityApi_;
-@synthesize reachability = reachability_;
-
-- (const struct GULReachabilityApi *)reachabilityApi {
-  return reachabilityApi_;
-}
-
-- (void)setReachabilityApi:(const struct GULReachabilityApi *)reachabilityApi {
-  if (reachability_) {
-    GULLogError(kGULLoggerReachability, NO,
-                [NSString stringWithFormat:@"I-REA%06ld", (long)kGULReachabilityMessageCode000],
-                @"Cannot change reachability API while reachability is running. "
-                @"Call stop first.");
-    return;
-  }
-  reachabilityApi_ = reachabilityApi;
-}
-
-@synthesize reachabilityStatus = reachabilityStatus_;
-@synthesize host = host_;
-@synthesize reachabilityDelegate = reachabilityDelegate_;
-
-- (BOOL)isActive {
-  return reachability_ != nil;
-}
-
-- (void)setReachabilityDelegate:(id<GULReachabilityDelegate>)reachabilityDelegate {
-  if (reachabilityDelegate &&
-      (![(NSObject *)reachabilityDelegate conformsToProtocol:@protocol(GULReachabilityDelegate)])) {
-    GULLogError(kGULLoggerReachability, NO,
-                [NSString stringWithFormat:@"I-NET%06ld", (long)kGULReachabilityMessageCode005],
-                @"Reachability delegate doesn't conform to Reachability protocol.");
-    return;
-  }
-  reachabilityDelegate_ = reachabilityDelegate;
-}
-
-- (instancetype)initWithReachabilityDelegate:(id<GULReachabilityDelegate>)reachabilityDelegate
-                                    withHost:(NSString *)host {
-  self = [super init];
-
-  if (!host || !host.length) {
-    GULLogError(kGULLoggerReachability, NO,
-                [NSString stringWithFormat:@"I-REA%06ld", (long)kGULReachabilityMessageCode001],
-                @"Invalid host specified");
-    return nil;
-  }
-  if (self) {
-    [self setReachabilityDelegate:reachabilityDelegate];
-    reachabilityApi_ = &kGULDefaultReachabilityApi;
-    reachabilityStatus_ = kGULReachabilityUnknown;
-    host_ = [host copy];
-    reachability_ = nil;
-  }
-  return self;
-}
-
-- (void)dealloc {
-  reachabilityDelegate_ = nil;
-  [self stop];
-}
-
-- (BOOL)start {
-  if (!reachability_) {
-    reachability_ = reachabilityApi_->createWithNameFn(kCFAllocatorDefault, [host_ UTF8String]);
-    if (!reachability_) {
-      return NO;
-    }
-    SCNetworkReachabilityContext context = {
-        0,                       /* version */
-        (__bridge void *)(self), /* info (passed as last parameter to reachability callback) */
-        NULL,                    /* retain */
-        NULL,                    /* release */
-        NULL                     /* copyDescription */
-    };
-    if (!reachabilityApi_->setCallbackFn(reachability_, ReachabilityCallback, &context) ||
-        !reachabilityApi_->scheduleWithRunLoopFn(reachability_, CFRunLoopGetMain(),
-                                                 kCFRunLoopCommonModes)) {
-      reachabilityApi_->releaseFn(reachability_);
-      reachability_ = nil;
-
-      GULLogError(kGULLoggerReachability, NO,
-                  [NSString stringWithFormat:@"I-REA%06ld", (long)kGULReachabilityMessageCode002],
-                  @"Failed to start reachability handle");
-      return NO;
-    }
-  }
-  GULLogDebug(kGULLoggerReachability, NO,
-              [NSString stringWithFormat:@"I-REA%06ld", (long)kGULReachabilityMessageCode003],
-              @"Monitoring the network status");
-  return YES;
-}
-
-- (void)stop {
-  if (reachability_) {
-    reachabilityStatus_ = kGULReachabilityUnknown;
-    reachabilityApi_->unscheduleFromRunLoopFn(reachability_, CFRunLoopGetMain(),
-                                              kCFRunLoopCommonModes);
-    reachabilityApi_->releaseFn(reachability_);
-    reachability_ = nil;
-  }
-}
-
-- (GULReachabilityStatus)statusForFlags:(SCNetworkReachabilityFlags)flags {
-  GULReachabilityStatus status = kGULReachabilityNotReachable;
-  // If the Reachable flag is not set, we definitely don't have connectivity.
-  if (flags & kSCNetworkReachabilityFlagsReachable) {
-    // Reachable flag is set. Check further flags.
-    if (!(flags & kSCNetworkReachabilityFlagsConnectionRequired)) {
-// Connection required flag is not set, so we have connectivity.
-#if TARGET_OS_IOS || TARGET_OS_TV
-      status = (flags & kSCNetworkReachabilityFlagsIsWWAN) ? kGULReachabilityViaCellular
-                                                           : kGULReachabilityViaWifi;
-#elif TARGET_OS_OSX
-      status = kGULReachabilityViaWifi;
-#endif
-    } else if ((flags & (kSCNetworkReachabilityFlagsConnectionOnDemand |
-                         kSCNetworkReachabilityFlagsConnectionOnTraffic)) &&
-               !(flags & kSCNetworkReachabilityFlagsInterventionRequired)) {
-// If the connection on demand or connection on traffic flag is set, and user intervention
-// is not required, we have connectivity.
-#if TARGET_OS_IOS || TARGET_OS_TV
-      status = (flags & kSCNetworkReachabilityFlagsIsWWAN) ? kGULReachabilityViaCellular
-                                                           : kGULReachabilityViaWifi;
-#elif TARGET_OS_OSX
-      status = kGULReachabilityViaWifi;
-#endif
-    }
-  }
-  return status;
-}
-
-- (void)reachabilityFlagsChanged:(SCNetworkReachabilityFlags)flags {
-  GULReachabilityStatus status = [self statusForFlags:flags];
-  if (reachabilityStatus_ != status) {
-    NSString *reachabilityStatusString;
-    if (status == kGULReachabilityUnknown) {
-      reachabilityStatusString = kGULReachabilityUnknownStatus;
-    } else {
-      reachabilityStatusString = (status == kGULReachabilityNotReachable)
-                                     ? kGULReachabilityDisconnectedStatus
-                                     : kGULReachabilityConnectedStatus;
-    }
-
-    GULLogDebug(kGULLoggerReachability, NO,
-                [NSString stringWithFormat:@"I-REA%06ld", (long)kGULReachabilityMessageCode004],
-                @"Network status has changed. Code:%@, status:%@", @(status),
-                reachabilityStatusString);
-    reachabilityStatus_ = status;
-    [reachabilityDelegate_ reachability:self statusChanged:reachabilityStatus_];
-  }
-}
-
-@end
-
-static void ReachabilityCallback(SCNetworkReachabilityRef reachability,
-                                 SCNetworkReachabilityFlags flags,
-                                 void *info) {
-  GULReachabilityChecker *checker = (__bridge GULReachabilityChecker *)info;
-  [checker reachabilityFlagsChanged:flags];
-}
-
-// This function used to be at the top of the file, but it was moved here
-// as a workaround for a suspected compiler bug. When compiled in Release mode
-// and run on an iOS device with WiFi disabled, the reachability code crashed
-// when calling SCNetworkReachabilityScheduleWithRunLoop, or shortly thereafter.
-// After unsuccessfully trying to diagnose the cause of the crash, it was
-// discovered that moving this function to the end of the file magically fixed
-// the crash. If you are going to edit this file, exercise caution and make sure
-// to test thoroughly with an iOS device under various network conditions.
-const NSString *GULReachabilityStatusString(GULReachabilityStatus status) {
-  switch (status) {
-    case kGULReachabilityUnknown:
-      return @"Reachability Unknown";
-
-    case kGULReachabilityNotReachable:
-      return @"Not reachable";
-
-    case kGULReachabilityViaWifi:
-      return @"Reachable via Wifi";
-
-    case kGULReachabilityViaCellular:
-      return @"Reachable via Cellular Data";
-
-    default:
-      return [NSString stringWithFormat:@"Invalid reachability status %d", (int)status];
-  }
-}