379 lines
10 KiB
Plaintext
379 lines
10 KiB
Plaintext
// This file Copyright © 2008-2022 Transmission authors and contributors.
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// It may be used under the MIT (SPDX: MIT) license.
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// License text can be found in the licenses/ folder.
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#import "BlocklistDownloader.h"
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#import "BlocklistDownloaderViewController.h"
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#import "BlocklistScheduler.h"
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#import "Controller.h"
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@interface BlocklistDownloader ()
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@property(nonatomic) NSURLSession* fSession;
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@property(nonatomic) NSUInteger fCurrentSize;
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@property(nonatomic) long long fExpectedSize;
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@property(nonatomic) blocklistDownloadState fState;
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@end
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@implementation BlocklistDownloader
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BlocklistDownloader* fBLDownloader = nil;
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+ (BlocklistDownloader*)downloader
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{
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if (!fBLDownloader)
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{
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fBLDownloader = [[BlocklistDownloader alloc] init];
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[fBLDownloader startDownload];
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}
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return fBLDownloader;
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}
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+ (BOOL)isRunning
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{
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return fBLDownloader != nil;
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}
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- (void)setViewController:(BlocklistDownloaderViewController*)viewController
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{
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_viewController = viewController;
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if (_viewController)
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{
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switch (self.fState)
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{
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case BLOCKLIST_DL_START:
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[_viewController setStatusStarting];
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break;
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case BLOCKLIST_DL_DOWNLOADING:
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[_viewController setStatusProgressForCurrentSize:self.fCurrentSize expectedSize:self.fExpectedSize];
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break;
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case BLOCKLIST_DL_PROCESSING:
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[_viewController setStatusProcessing];
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break;
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}
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}
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}
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- (void)cancelDownload
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{
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[_viewController setFinished];
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[self.fSession invalidateAndCancel];
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[BlocklistScheduler.scheduler updateSchedule];
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fBLDownloader = nil;
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}
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- (void)URLSession:(NSURLSession*)session
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downloadTask:(NSURLSessionDownloadTask*)downloadTask
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didWriteData:(int64_t)bytesWritten
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totalBytesWritten:(int64_t)totalBytesWritten
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totalBytesExpectedToWrite:(int64_t)totalBytesExpectedToWrite
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{
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dispatch_async(dispatch_get_main_queue(), ^{
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self.fState = BLOCKLIST_DL_DOWNLOADING;
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self.fCurrentSize = totalBytesWritten;
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self.fExpectedSize = totalBytesExpectedToWrite;
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[self.viewController setStatusProgressForCurrentSize:self.fCurrentSize expectedSize:self.fExpectedSize];
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});
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}
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- (void)URLSession:(NSURLSession*)session task:(NSURLSessionTask*)task didCompleteWithError:(NSError*)error
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{
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dispatch_async(dispatch_get_main_queue(), ^{
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if (error)
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{
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[self.viewController setFailed:error.localizedDescription];
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}
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[NSUserDefaults.standardUserDefaults setObject:[NSDate date] forKey:@"BlocklistNewLastUpdate"];
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[BlocklistScheduler.scheduler updateSchedule];
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[self.fSession finishTasksAndInvalidate];
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fBLDownloader = nil;
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});
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}
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- (void)URLSession:(NSURLSession*)session
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downloadTask:(NSURLSessionDownloadTask*)downloadTask
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didFinishDownloadingToURL:(NSURL*)location
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{
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self.fState = BLOCKLIST_DL_PROCESSING;
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dispatch_async(dispatch_get_main_queue(), ^{
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[self.viewController setStatusProcessing];
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});
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NSString* filename = downloadTask.response.suggestedFilename;
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if (filename == nil)
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{
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filename = @"transmission-blocklist.tmp";
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}
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NSString* tempFile = [NSTemporaryDirectory() stringByAppendingPathComponent:filename];
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NSString* blocklistFile = [NSTemporaryDirectory() stringByAppendingPathComponent:@"transmission-blocklist"];
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[NSFileManager.defaultManager moveItemAtPath:location.path toPath:tempFile error:nil];
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if ([@"text/plain" isEqualToString:downloadTask.response.MIMEType])
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{
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blocklistFile = tempFile;
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}
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else
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{
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[self decompressFrom:[NSURL fileURLWithPath:tempFile] to:[NSURL fileURLWithPath:blocklistFile] error:nil];
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[NSFileManager.defaultManager removeItemAtPath:tempFile error:nil];
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}
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dispatch_async(dispatch_get_main_queue(), ^{
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auto const count = tr_blocklistSetContent(((Controller*)NSApp.delegate).sessionHandle, blocklistFile.UTF8String);
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//delete downloaded file
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[NSFileManager.defaultManager removeItemAtPath:blocklistFile error:nil];
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if (count > 0)
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{
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[self.viewController setFinished];
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}
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else
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{
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[self.viewController
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setFailed:NSLocalizedString(@"The specified blocklist file did not contain any valid rules.", "blocklist fail message")];
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}
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//update last updated date for schedule
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NSDate* date = [NSDate date];
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[NSUserDefaults.standardUserDefaults setObject:date forKey:@"BlocklistNewLastUpdate"];
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[NSUserDefaults.standardUserDefaults setObject:date forKey:@"BlocklistNewLastUpdateSuccess"];
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[BlocklistScheduler.scheduler updateSchedule];
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[NSNotificationCenter.defaultCenter postNotificationName:@"BlocklistUpdated" object:nil];
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[self.fSession finishTasksAndInvalidate];
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fBLDownloader = nil;
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});
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}
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#pragma mark - Private
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- (void)startDownload
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{
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self.fState = BLOCKLIST_DL_START;
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self.fSession = [NSURLSession sessionWithConfiguration:NSURLSessionConfiguration.ephemeralSessionConfiguration delegate:self
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delegateQueue:nil];
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[BlocklistScheduler.scheduler cancelSchedule];
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NSString* urlString = [NSUserDefaults.standardUserDefaults stringForKey:@"BlocklistURL"];
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if (!urlString)
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{
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urlString = @"";
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}
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else if (![urlString isEqualToString:@""] && [urlString rangeOfString:@"://"].location == NSNotFound)
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{
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urlString = [@"https://" stringByAppendingString:urlString];
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}
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NSURLSessionDownloadTask* task = [self.fSession downloadTaskWithURL:[NSURL URLWithString:urlString]];
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[task resume];
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}
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- (BOOL)decompressFrom:(NSURL*)file to:(NSURL*)destination error:(NSError**)error
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{
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if ([self untarFrom:file to:destination])
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{
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return YES;
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}
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if ([self unzipFrom:file to:destination])
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{
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return YES;
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}
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if ([self gunzipFrom:file to:destination])
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{
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return YES;
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}
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// If it doesn't look like archive just copy it to destination
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else
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{
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return [NSFileManager.defaultManager copyItemAtURL:file toURL:destination error:error];
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}
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}
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- (BOOL)untarFrom:(NSURL*)file to:(NSURL*)destination
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{
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NSTask* tarList = [[NSTask alloc] init];
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tarList.launchPath = @"/usr/bin/tar";
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tarList.arguments = @[ @"--list", @"--file", file.path ];
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NSPipe* pipe = [[NSPipe alloc] init];
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tarList.standardOutput = pipe;
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tarList.standardError = nil;
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NSString* filename;
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@try
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{
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[tarList launch];
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[tarList waitUntilExit];
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if (tarList.terminationStatus != 0)
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{
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return NO;
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}
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NSData* data = [pipe.fileHandleForReading readDataToEndOfFile];
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NSString* output = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
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filename = [output componentsSeparatedByCharactersInSet:NSCharacterSet.newlineCharacterSet].firstObject;
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}
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@catch (NSException* exception)
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{
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return NO;
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}
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// It's a directory, skip
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if ([filename hasSuffix:@"/"])
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{
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return NO;
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}
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NSURL* destinationDir = destination.URLByDeletingLastPathComponent;
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NSTask* untar = [[NSTask alloc] init];
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untar.launchPath = @"/usr/bin/tar";
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untar.currentDirectoryPath = destinationDir.path;
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untar.arguments = @[ @"--extract", @"--file", file.path, filename ];
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@try
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{
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[untar launch];
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[untar waitUntilExit];
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if (untar.terminationStatus != 0)
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{
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return NO;
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}
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}
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@catch (NSException* exception)
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{
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return NO;
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}
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NSURL* result = [destinationDir URLByAppendingPathComponent:filename];
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[NSFileManager.defaultManager moveItemAtURL:result toURL:destination error:nil];
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return YES;
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}
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- (BOOL)gunzipFrom:(NSURL*)file to:(NSURL*)destination
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{
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NSURL* destinationDir = destination.URLByDeletingLastPathComponent;
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NSTask* gunzip = [[NSTask alloc] init];
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gunzip.launchPath = @"/usr/bin/gunzip";
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gunzip.currentDirectoryPath = destinationDir.path;
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gunzip.arguments = @[ @"--keep", @"--force", file.path ];
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@try
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{
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[gunzip launch];
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[gunzip waitUntilExit];
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if (gunzip.terminationStatus != 0)
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{
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return NO;
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}
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}
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@catch (NSException* exception)
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{
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return NO;
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}
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NSURL* result = file.URLByDeletingPathExtension;
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[NSFileManager.defaultManager moveItemAtURL:result toURL:destination error:nil];
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return YES;
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}
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- (BOOL)unzipFrom:(NSURL*)file to:(NSURL*)destination
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{
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NSTask* zipinfo = [[NSTask alloc] init];
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zipinfo.launchPath = @"/usr/bin/zipinfo";
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zipinfo.arguments = @[
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@"-1", /* just the filename */
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file /* source zip file */
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];
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NSPipe* pipe = [[NSPipe alloc] init];
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zipinfo.standardOutput = pipe;
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zipinfo.standardError = nil;
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NSString* filename;
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@try
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{
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[zipinfo launch];
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[zipinfo waitUntilExit];
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if (zipinfo.terminationStatus != 0)
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{
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return NO;
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}
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NSData* data = [pipe.fileHandleForReading readDataToEndOfFile];
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NSString* output = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
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filename = [output componentsSeparatedByCharactersInSet:NSCharacterSet.newlineCharacterSet].firstObject;
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}
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@catch (NSException* exception)
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{
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return NO;
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}
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// It's a directory, skip
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if ([filename hasSuffix:@"/"])
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{
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return NO;
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}
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NSURL* destinationDir = destination.URLByDeletingLastPathComponent;
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NSTask* unzip = [[NSTask alloc] init];
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unzip.launchPath = @"/usr/bin/unzip";
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unzip.currentDirectoryPath = destinationDir.path;
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unzip.arguments = @[ file.path, filename ];
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@try
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{
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[unzip launch];
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[unzip waitUntilExit];
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if (unzip.terminationStatus != 0)
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{
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return NO;
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}
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}
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@catch (NSException* exception)
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{
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return NO;
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}
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NSURL* result = [destinationDir URLByAppendingPathComponent:filename];
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[NSFileManager.defaultManager moveItemAtURL:result toURL:destination error:nil];
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return YES;
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}
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@end
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