[Issue #1323] Making debugSecurityPolicy defaultSecurityPolicy

Adding +securityPolicyWithPinningMode:

Removing securityPolicy property from UIImageView

AFNetworking/AFSecurityPolicy.h

@@ -62,7 +62,7 @@ typedef NS_ENUM(NSUInteger, AFSSLPinningMode) {
 /**
  
  */
-+ (instancetype)debugPolicy;
++ (instancetype)policyWithPinningMode:(AFSSLPinningMode)pinningMode;
 
 ///
 

AFNetworking/AFSecurityPolicy.m

@@ -145,19 +145,18 @@ + (NSArray *)defaultPinnedCertificates {
 }
 
 + (instancetype)defaultPolicy {
-    AFSecurityPolicy *security = [[self alloc] init];
-    security.SSLPinningMode = AFSSLPinningModePublicKey;
-    security.pinnedCertificates = [[self class] defaultPinnedCertificates];
+    AFSecurityPolicy *securityPolicy = [[self alloc] init];
+    securityPolicy.SSLPinningMode = AFSSLPinningModeNone;
+    securityPolicy.allowInvalidCertificates = YES;
 
-    return security;
+    return securityPolicy;
 }
 
-+ (instancetype)debugPolicy {
-    AFSecurityPolicy *security = [[self alloc] init];
-    security.SSLPinningMode = AFSSLPinningModeNone;
-    security.allowInvalidCertificates = YES;
++ (instancetype)policyWithPinningMode:(AFSSLPinningMode)pinningMode {
+    AFSecurityPolicy *securityPolicy = [[self alloc] init];
+    securityPolicy.SSLPinningMode = pinningMode;
 
-    return security;
+    return securityPolicy;
 }
 
 #pragma mark -

UIKit+AFNetworking/UIImageView+AFNetworking.h

@@ -40,11 +40,6 @@
  */
 @property (nonatomic, strong) AFImageResponseSerializer <AFURLResponseSerialization> * imageResponseSerializer;
 
-/**
- 
- */
-@property (nonatomic, strong) AFSecurityPolicy *securityPolicy;
-
 
 /**
  Creates and enqueues an image request operation, which asynchronously downloads the image from the specified URL, and sets it the request is finished. Any previous image request for the receiver will be cancelled. If the image is cached locally, the image is set immediately, otherwise the specified placeholder image will be set immediately, and then the remote image will be set once the request is finished.

UIKit+AFNetworking/UIImageView+AFNetworking.m

@@ -39,24 +39,19 @@ - (void)cacheImage:(UIImage *)image
 
 static char kAFImageRequestOperationKey;
 static char kAFResponseSerializerKey;
-static char kAFSecurityPolicyKey;
-
 
 @interface UIImageView (_AFNetworking)
 @property (readwrite, nonatomic, strong, setter = af_setImageRequestOperation:) AFHTTPRequestOperation *af_imageRequestOperation;
-@property (readwrite, nonatomic, strong, setter = af_setSecurityPolicy:) AFSecurityPolicy *af_securityPolicy;
 @end
 
 @implementation UIImageView (_AFNetworking)
 @dynamic af_imageRequestOperation;
-@dynamic af_securityPolicy;
 @end
 
 #pragma mark -
 
 @implementation UIImageView (AFNetworking)
 @dynamic imageResponseSerializer;
-@dynamic securityPolicy;
 
 + (NSOperationQueue *)af_sharedImageRequestOperationQueue {
     static NSOperationQueue *_af_sharedImageRequestOperationQueue = nil;
@@ -101,20 +96,6 @@ - (void)setImageResponseSerializer:(id <AFURLResponseSerialization>)serializer {
     objc_setAssociatedObject(self, &kAFResponseSerializerKey, serializer, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
 }
 
-- (AFSecurityPolicy *)securityPolicy {
-    static AFSecurityPolicy *_af_defaultSecurityPolicy = nil;
-    static dispatch_once_t onceToken;
-    dispatch_once(&onceToken, ^{
-        _af_defaultSecurityPolicy = [AFSecurityPolicy debugPolicy];
-    });
-
-    return objc_getAssociatedObject(self, &kAFSecurityPolicyKey) ?: _af_defaultSecurityPolicy;
-}
-
-- (void)setSecurityPolicy:(AFSecurityPolicy *)securityPolicy {
-    objc_setAssociatedObject(self, &kAFSecurityPolicyKey, securityPolicy, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
-}
-
 #pragma mark -
 
 - (void)setImageWithURL:(NSURL *)url {
@@ -152,7 +133,6 @@ - (void)setImageWithURLRequest:(NSURLRequest *)urlRequest
         __weak __typeof(self)weakSelf = self;
         self.af_imageRequestOperation = [[AFHTTPRequestOperation alloc] initWithRequest:urlRequest];
         self.af_imageRequestOperation.responseSerializer = self.imageResponseSerializer;
-        self.af_imageRequestOperation.securityPolicy = self.securityPolicy;
         [self.af_imageRequestOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
             __strong __typeof(weakSelf)strongSelf = weakSelf;
             if ([[urlRequest URL] isEqual:[operation.request URL]]) {