зеркало из https://github.com/nextcloud/talk-ios.git
110 строки
4.3 KiB
Objective-C
110 строки
4.3 KiB
Objective-C
//
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// NCFilePreviewSessionManager.m
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// VideoCalls
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//
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// Created by Ivan Sein on 28.08.18.
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// Copyright © 2018 struktur AG. All rights reserved.
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//
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#import "NCFilePreviewSessionManager.h"
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#import "CCCertificate.h"
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@interface NCFilePreviewSessionManager () <NSURLSessionTaskDelegate, NSURLSessionDelegate>
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{
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NSString *_serverUrl;
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NSString *_authHeader;
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NSString *_userAgent;
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}
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@end
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@implementation NCFilePreviewSessionManager
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+ (NCFilePreviewSessionManager *)sharedInstance
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{
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static dispatch_once_t once;
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static NCFilePreviewSessionManager *sharedInstance;
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dispatch_once(&once, ^{
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sharedInstance = [[self alloc] init];
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});
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return sharedInstance;
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}
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- (void)setNCServer:(NSString *)serverUrl
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{
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_serverUrl = serverUrl;
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}
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- (void)setAuthHeaderWithUser:(NSString *)user andToken:(NSString *)token
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{
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NSString *userTokenString = [NSString stringWithFormat:@"%@:%@", user, token];
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NSData *data = [userTokenString dataUsingEncoding:NSUTF8StringEncoding];
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NSString *base64Encoded = [data base64EncodedStringWithOptions:0];
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NSString *authHeader = [[NSString alloc]initWithFormat:@"Basic %@",base64Encoded];
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[[NCFilePreviewSessionManager sharedInstance].requestSerializer setValue:authHeader forHTTPHeaderField:@"Authorization"];
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_authHeader = authHeader;
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}
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- (id)init
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{
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// Set ephemeralSessionConfiguration and just use AFAutoPurgingImageCache for caching images.
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NSURLSessionConfiguration *configuration = [NSURLSessionConfiguration ephemeralSessionConfiguration];
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self = [super initWithSessionConfiguration:configuration];
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if (self) {
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_userAgent = [NSString stringWithFormat:@"Mozilla/5.0 (iOS) Nextcloud-Talk v%@",
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[[[NSBundle mainBundle] infoDictionary] objectForKey:@"CFBundleShortVersionString"]];
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self.responseSerializer = [[AFImageResponseSerializer alloc] init];
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self.requestSerializer = [[AFHTTPRequestSerializer alloc] init];
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AFSecurityPolicy* policy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeNone];
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self.securityPolicy = policy;
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self.responseSerializer.acceptableContentTypes = [self.responseSerializer.acceptableContentTypes setByAddingObject:@"image/jpg"];
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[self.requestSerializer setValue:_userAgent forHTTPHeaderField:@"User-Agent"];
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}
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return self;
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}
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- (NSURLSessionDataTask *)getFilePreview:(NSString *)fileId width:(NSInteger)width height:(NSInteger)height withCompletionBlock:(GetFilePreviewCompletionBlock)block
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{
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NSString *URLString = [NSString stringWithFormat:@"%@/index.php/core/preview", _serverUrl];
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NSDictionary *parameters = @{@"fileId" : fileId,
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@"x" : @(width),
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@"y" : @(height),
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@"forceIcon" : @(1)};
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NSURLSessionDataTask *task = [[NCFilePreviewSessionManager sharedInstance] GET:URLString parameters:parameters progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) {
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if (block) {
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block(responseObject, nil);
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}
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} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
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if (block) {
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block(nil, error);
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}
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}];
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return task;
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}
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- (NSURLRequest *)createPreviewRequestForFile:(NSString *)fileId width:(NSInteger)width height:(NSInteger)height
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{
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NSString *urlString = [NSString stringWithFormat:@"%@/index.php/core/preview?fileId=%@&x=%ld&y=%ld&forceIcon=1", _serverUrl, fileId, (long)width, (long)height];
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NSMutableURLRequest *previewRequest = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:urlString] cachePolicy:NSURLRequestReturnCacheDataElseLoad timeoutInterval:60];
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[previewRequest setValue:_authHeader forHTTPHeaderField:@"Authorization"];
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return previewRequest;
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}
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-(void)URLSession:(NSURLSession *)session didReceiveChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition, NSURLCredential * _Nullable))completionHandler
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{
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if ([[CCCertificate sharedManager] checkTrustedChallenge:challenge]) {
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completionHandler(NSURLSessionAuthChallengeUseCredential, [NSURLCredential credentialForTrust:challenge.protectionSpace.serverTrust]);
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} else {
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completionHandler(NSURLSessionAuthChallengePerformDefaultHandling, nil);
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}
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}
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@end
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