/*
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* This file is part of the SDWebImage package.
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* (c) Olivier Poitrey <rs@dailymotion.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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#import "SDWebImageDownloaderResponseModifier.h"
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@interface SDWebImageDownloaderResponseModifier ()
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@property (nonatomic, copy, nonnull) SDWebImageDownloaderResponseModifierBlock block;
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@end
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@implementation SDWebImageDownloaderResponseModifier
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- (instancetype)initWithBlock:(SDWebImageDownloaderResponseModifierBlock)block {
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self = [super init];
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if (self) {
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self.block = block;
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}
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return self;
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}
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+ (instancetype)responseModifierWithBlock:(SDWebImageDownloaderResponseModifierBlock)block {
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SDWebImageDownloaderResponseModifier *responseModifier = [[SDWebImageDownloaderResponseModifier alloc] initWithBlock:block];
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return responseModifier;
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}
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- (nullable NSURLResponse *)modifiedResponseWithResponse:(nonnull NSURLResponse *)response {
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if (!self.block) {
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return nil;
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}
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return self.block(response);
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}
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@end
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@implementation SDWebImageDownloaderResponseModifier (Conveniences)
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- (instancetype)initWithStatusCode:(NSInteger)statusCode {
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return [self initWithStatusCode:statusCode version:nil headers:nil];
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}
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- (instancetype)initWithVersion:(NSString *)version {
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return [self initWithStatusCode:200 version:version headers:nil];
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}
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- (instancetype)initWithHeaders:(NSDictionary<NSString *,NSString *> *)headers {
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return [self initWithStatusCode:200 version:nil headers:headers];
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}
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- (instancetype)initWithStatusCode:(NSInteger)statusCode version:(NSString *)version headers:(NSDictionary<NSString *,NSString *> *)headers {
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version = version ? [version copy] : @"HTTP/1.1";
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headers = [headers copy];
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return [self initWithBlock:^NSURLResponse * _Nullable(NSURLResponse * _Nonnull response) {
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if (![response isKindOfClass:NSHTTPURLResponse.class]) {
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return response;
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}
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NSMutableDictionary *mutableHeaders = [((NSHTTPURLResponse *)response).allHeaderFields mutableCopy];
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for (NSString *header in headers) {
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NSString *value = headers[header];
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mutableHeaders[header] = value;
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}
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NSHTTPURLResponse *httpResponse = [[NSHTTPURLResponse alloc] initWithURL:response.URL statusCode:statusCode HTTPVersion:version headerFields:[mutableHeaders copy]];
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return httpResponse;
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}];
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}
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@end
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