1 files changed, 0 insertions, 388 deletions
diff --git a/Firebase/Utilities/Network/GULNetwork.m b/Firebase/Utilities/Network/GULNetwork.m
deleted file mode 100644
index 233500b..0000000
--- a/Firebase/Utilities/Network/GULNetwork.m
+++ /dev/null
@@ -1,388 +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 "Private/GULNetwork.h"
-#import "Private/GULNetworkMessageCode.h"
-
-#import <GoogleUtilities/GULLogger.h>
-#import <GoogleUtilities/GULNSData+zlib.h>
-#import <GoogleUtilities/GULReachabilityChecker.h>
-#import "Private/GULMutableDictionary.h"
-#import "Private/GULNetworkConstants.h"
-
-/// Constant string for request header Content-Encoding.
-static NSString *const kGULNetworkContentCompressionKey = @"Content-Encoding";
-
-/// Constant string for request header Content-Encoding value.
-static NSString *const kGULNetworkContentCompressionValue = @"gzip";
-
-/// Constant string for request header Content-Length.
-static NSString *const kGULNetworkContentLengthKey = @"Content-Length";
-
-/// Constant string for request header Content-Type.
-static NSString *const kGULNetworkContentTypeKey = @"Content-Type";
-
-/// Constant string for request header Content-Type value.
-static NSString *const kGULNetworkContentTypeValue = @"application/x-www-form-urlencoded";
-
-/// Constant string for GET request method.
-static NSString *const kGULNetworkGETRequestMethod = @"GET";
-
-/// Constant string for POST request method.
-static NSString *const kGULNetworkPOSTRequestMethod = @"POST";
-
-/// Default constant string as a prefix for network logger.
-static NSString *const kGULNetworkLogTag = @"Google/Utilities/Network";
-
-@interface GULNetwork () <GULReachabilityDelegate, GULNetworkLoggerDelegate>
-@end
-
-@implementation GULNetwork {
-  /// Network reachability.
-  GULReachabilityChecker *_reachability;
-
-  /// The dictionary of requests by session IDs { NSString : id }.
-  GULMutableDictionary *_requests;
-}
-
-- (instancetype)init {
-  return [self initWithReachabilityHost:kGULNetworkReachabilityHost];
-}
-
-- (instancetype)initWithReachabilityHost:(NSString *)reachabilityHost {
-  self = [super init];
-  if (self) {
-    // Setup reachability.
-    _reachability = [[GULReachabilityChecker alloc] initWithReachabilityDelegate:self
-                                                                        withHost:reachabilityHost];
-    if (![_reachability start]) {
-      return nil;
-    }
-
-    _requests = [[GULMutableDictionary alloc] init];
-    _timeoutInterval = kGULNetworkTimeOutInterval;
-  }
-  return self;
-}
-
-- (void)dealloc {
-  _reachability.reachabilityDelegate = nil;
-  [_reachability stop];
-}
-
-#pragma mark - External Methods
-
-+ (void)handleEventsForBackgroundURLSessionID:(NSString *)sessionID
-                            completionHandler:(GULNetworkSystemCompletionHandler)completionHandler {
-  [GULNetworkURLSession handleEventsForBackgroundURLSessionID:sessionID
-                                            completionHandler:completionHandler];
-}
-
-- (NSString *)postURL:(NSURL *)url
-                   payload:(NSData *)payload
-                     queue:(dispatch_queue_t)queue
-    usingBackgroundSession:(BOOL)usingBackgroundSession
-         completionHandler:(GULNetworkCompletionHandler)handler {
-  if (!url.absoluteString.length) {
-    [self handleErrorWithCode:GULErrorCodeNetworkInvalidURL queue:queue withHandler:handler];
-    return nil;
-  }
-
-  NSTimeInterval timeOutInterval = _timeoutInterval ?: kGULNetworkTimeOutInterval;
-
-  NSMutableURLRequest *request =
-      [[NSMutableURLRequest alloc] initWithURL:url
-                                   cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
-                               timeoutInterval:timeOutInterval];
-
-  if (!request) {
-    [self handleErrorWithCode:GULErrorCodeNetworkSessionTaskCreation
-                        queue:queue
-                  withHandler:handler];
-    return nil;
-  }
-
-  NSError *compressError = nil;
-  NSData *compressedData = [NSData gul_dataByGzippingData:payload error:&compressError];
-  if (!compressedData || compressError) {
-    if (compressError || payload.length > 0) {
-      // If the payload is not empty but it fails to compress the payload, something has been wrong.
-      [self handleErrorWithCode:GULErrorCodeNetworkPayloadCompression
-                          queue:queue
-                    withHandler:handler];
-      return nil;
-    }
-    compressedData = [[NSData alloc] init];
-  }
-
-  NSString *postLength = @(compressedData.length).stringValue;
-
-  // Set up the request with the compressed data.
-  [request setValue:postLength forHTTPHeaderField:kGULNetworkContentLengthKey];
-  request.HTTPBody = compressedData;
-  request.HTTPMethod = kGULNetworkPOSTRequestMethod;
-  [request setValue:kGULNetworkContentTypeValue forHTTPHeaderField:kGULNetworkContentTypeKey];
-  [request setValue:kGULNetworkContentCompressionValue
-      forHTTPHeaderField:kGULNetworkContentCompressionKey];
-
-  GULNetworkURLSession *fetcher = [[GULNetworkURLSession alloc] initWithNetworkLoggerDelegate:self];
-  fetcher.backgroundNetworkEnabled = usingBackgroundSession;
-
-  __weak GULNetwork *weakSelf = self;
-  NSString *requestID = [fetcher
-      sessionIDFromAsyncPOSTRequest:request
-                  completionHandler:^(NSHTTPURLResponse *response, NSData *data,
-                                      NSString *sessionID, NSError *error) {
-                    GULNetwork *strongSelf = weakSelf;
-                    if (!strongSelf) {
-                      return;
-                    }
-                    dispatch_queue_t queueToDispatch = queue ? queue : dispatch_get_main_queue();
-                    dispatch_async(queueToDispatch, ^{
-                      if (sessionID.length) {
-                        [strongSelf->_requests removeObjectForKey:sessionID];
-                      }
-                      if (handler) {
-                        handler(response, data, error);
-                      }
-                    });
-                  }];
-  if (!requestID) {
-    [self handleErrorWithCode:GULErrorCodeNetworkSessionTaskCreation
-                        queue:queue
-                  withHandler:handler];
-    return nil;
-  }
-
-  [self GULNetwork_logWithLevel:kGULNetworkLogLevelDebug
-                    messageCode:kGULNetworkMessageCodeNetwork000
-                        message:@"Uploading data. Host"
-                        context:url];
-  _requests[requestID] = fetcher;
-  return requestID;
-}
-
-- (NSString *)getURL:(NSURL *)url
-                   headers:(NSDictionary *)headers
-                     queue:(dispatch_queue_t)queue
-    usingBackgroundSession:(BOOL)usingBackgroundSession
-         completionHandler:(GULNetworkCompletionHandler)handler {
-  if (!url.absoluteString.length) {
-    [self handleErrorWithCode:GULErrorCodeNetworkInvalidURL queue:queue withHandler:handler];
-    return nil;
-  }
-
-  NSTimeInterval timeOutInterval = _timeoutInterval ?: kGULNetworkTimeOutInterval;
-  NSMutableURLRequest *request =
-      [[NSMutableURLRequest alloc] initWithURL:url
-                                   cachePolicy:NSURLRequestReloadIgnoringLocalCacheData
-                               timeoutInterval:timeOutInterval];
-
-  if (!request) {
-    [self handleErrorWithCode:GULErrorCodeNetworkSessionTaskCreation
-                        queue:queue
-                  withHandler:handler];
-    return nil;
-  }
-
-  request.HTTPMethod = kGULNetworkGETRequestMethod;
-  request.allHTTPHeaderFields = headers;
-
-  GULNetworkURLSession *fetcher = [[GULNetworkURLSession alloc] initWithNetworkLoggerDelegate:self];
-  fetcher.backgroundNetworkEnabled = usingBackgroundSession;
-
-  __weak GULNetwork *weakSelf = self;
-  NSString *requestID = [fetcher
-      sessionIDFromAsyncGETRequest:request
-                 completionHandler:^(NSHTTPURLResponse *response, NSData *data, NSString *sessionID,
-                                     NSError *error) {
-                   GULNetwork *strongSelf = weakSelf;
-                   if (!strongSelf) {
-                     return;
-                   }
-                   dispatch_queue_t queueToDispatch = queue ? queue : dispatch_get_main_queue();
-                   dispatch_async(queueToDispatch, ^{
-                     if (sessionID.length) {
-                       [strongSelf->_requests removeObjectForKey:sessionID];
-                     }
-                     if (handler) {
-                       handler(response, data, error);
-                     }
-                   });
-                 }];
-
-  if (!requestID) {
-    [self handleErrorWithCode:GULErrorCodeNetworkSessionTaskCreation
-                        queue:queue
-                  withHandler:handler];
-    return nil;
-  }
-
-  [self GULNetwork_logWithLevel:kGULNetworkLogLevelDebug
-                    messageCode:kGULNetworkMessageCodeNetwork001
-                        message:@"Downloading data. Host"
-                        context:url];
-  _requests[requestID] = fetcher;
-  return requestID;
-}
-
-- (BOOL)hasUploadInProgress {
-  return _requests.count > 0;
-}
-
-#pragma mark - Network Reachability
-
-/// Tells reachability delegate to call reachabilityDidChangeToStatus: to notify the network
-/// reachability has changed.
-- (void)reachability:(GULReachabilityChecker *)reachability
-       statusChanged:(GULReachabilityStatus)status {
-  _networkConnected = (status == kGULReachabilityViaCellular || status == kGULReachabilityViaWifi);
-  [_reachabilityDelegate reachabilityDidChange];
-}
-
-#pragma mark - Network logger delegate
-
-- (void)setLoggerDelegate:(id<GULNetworkLoggerDelegate>)loggerDelegate {
-  // Explicitly check whether the delegate responds to the methods because conformsToProtocol does
-  // not work correctly even though the delegate does respond to the methods.
-  if (!loggerDelegate ||
-      ![loggerDelegate
-          respondsToSelector:@selector(GULNetwork_logWithLevel:messageCode:message:contexts:)] ||
-      ![loggerDelegate
-          respondsToSelector:@selector(GULNetwork_logWithLevel:messageCode:message:context:)] ||
-      !
-      [loggerDelegate respondsToSelector:@selector(GULNetwork_logWithLevel:messageCode:message:)]) {
-    GULLogError(kGULLoggerNetwork, NO,
-                [NSString stringWithFormat:@"I-NET%06ld", (long)kGULNetworkMessageCodeNetwork002],
-                @"Cannot set the network logger delegate: delegate does not conform to the network "
-                 "logger protocol.");
-    return;
-  }
-  _loggerDelegate = loggerDelegate;
-}
-
-#pragma mark - Private methods
-
-/// Handles network error and calls completion handler with the error.
-- (void)handleErrorWithCode:(NSInteger)code
-                      queue:(dispatch_queue_t)queue
-                withHandler:(GULNetworkCompletionHandler)handler {
-  NSDictionary *userInfo = @{kGULNetworkErrorContext : @"Failed to create network request"};
-  NSError *error =
-      [[NSError alloc] initWithDomain:kGULNetworkErrorDomain code:code userInfo:userInfo];
-  [self GULNetwork_logWithLevel:kGULNetworkLogLevelWarning
-                    messageCode:kGULNetworkMessageCodeNetwork002
-                        message:@"Failed to create network request. Code, error"
-                       contexts:@[ @(code), error ]];
-  if (handler) {
-    dispatch_queue_t queueToDispatch = queue ? queue : dispatch_get_main_queue();
-    dispatch_async(queueToDispatch, ^{
-      handler(nil, nil, error);
-    });
-  }
-}
-
-#pragma mark - Network logger
-
-- (void)GULNetwork_logWithLevel:(GULNetworkLogLevel)logLevel
-                    messageCode:(GULNetworkMessageCode)messageCode
-                        message:(NSString *)message
-                       contexts:(NSArray *)contexts {
-  // Let the delegate log the message if there is a valid logger delegate. Otherwise, just log
-  // errors/warnings/info messages to the console log.
-  if (_loggerDelegate) {
-    [_loggerDelegate GULNetwork_logWithLevel:logLevel
-                                 messageCode:messageCode
-                                     message:message
-                                    contexts:contexts];
-    return;
-  }
-  if (_isDebugModeEnabled || logLevel == kGULNetworkLogLevelError ||
-      logLevel == kGULNetworkLogLevelWarning || logLevel == kGULNetworkLogLevelInfo) {
-    NSString *formattedMessage = GULStringWithLogMessage(message, logLevel, contexts);
-    NSLog(@"%@", formattedMessage);
-    GULLogBasic((GULLoggerLevel)logLevel, kGULLoggerNetwork, NO,
-                [NSString stringWithFormat:@"I-NET%06ld", (long)messageCode], formattedMessage,
-                NULL);
-  }
-}
-
-- (void)GULNetwork_logWithLevel:(GULNetworkLogLevel)logLevel
-                    messageCode:(GULNetworkMessageCode)messageCode
-                        message:(NSString *)message
-                        context:(id)context {
-  if (_loggerDelegate) {
-    [_loggerDelegate GULNetwork_logWithLevel:logLevel
-                                 messageCode:messageCode
-                                     message:message
-                                     context:context];
-    return;
-  }
-  NSArray *contexts = context ? @[ context ] : @[];
-  [self GULNetwork_logWithLevel:logLevel messageCode:messageCode message:message contexts:contexts];
-}
-
-- (void)GULNetwork_logWithLevel:(GULNetworkLogLevel)logLevel
-                    messageCode:(GULNetworkMessageCode)messageCode
-                        message:(NSString *)message {
-  if (_loggerDelegate) {
-    [_loggerDelegate GULNetwork_logWithLevel:logLevel messageCode:messageCode message:message];
-    return;
-  }
-  [self GULNetwork_logWithLevel:logLevel messageCode:messageCode message:message contexts:@[]];
-}
-
-/// Returns a string for the given log level (e.g. kGULNetworkLogLevelError -> @"ERROR").
-static NSString *GULLogLevelDescriptionFromLogLevel(GULNetworkLogLevel logLevel) {
-  static NSDictionary *levelNames = nil;
-  static dispatch_once_t onceToken;
-  dispatch_once(&onceToken, ^{
-    levelNames = @{
-      @(kGULNetworkLogLevelError) : @"ERROR",
-      @(kGULNetworkLogLevelWarning) : @"WARNING",
-      @(kGULNetworkLogLevelInfo) : @"INFO",
-      @(kGULNetworkLogLevelDebug) : @"DEBUG"
-    };
-  });
-  return levelNames[@(logLevel)];
-}
-
-/// Returns a formatted string to be used for console logging.
-static NSString *GULStringWithLogMessage(NSString *message,
-                                         GULNetworkLogLevel logLevel,
-                                         NSArray *contexts) {
-  if (!message) {
-    message = @"(Message was nil)";
-  } else if (!message.length) {
-    message = @"(Message was empty)";
-  }
-  NSMutableString *result = [[NSMutableString alloc]
-      initWithFormat:@"<%@/%@> %@", kGULNetworkLogTag, GULLogLevelDescriptionFromLogLevel(logLevel),
-                     message];
-
-  if (!contexts.count) {
-    return result;
-  }
-
-  NSMutableArray *formattedContexts = [[NSMutableArray alloc] init];
-  for (id item in contexts) {
-    [formattedContexts addObject:(item != [NSNull null] ? item : @"(nil)")];
-  }
-
-  [result appendString:@": "];
-  [result appendString:[formattedContexts componentsJoinedByString:@", "]];
-  return result;
-}
-
-@end