86 lines
2.7 KiB
Mathematica
86 lines
2.7 KiB
Mathematica
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// MLLogFileManager.m
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// monalxmpp
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//
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// Created by Thilo Molitor on 21.07.20.
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// Copyright © 2020 Monal.im. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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#import "HelperTools.h"
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#import "MLLogFileManager.h"
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@interface DDFileLogRawlogMessageSerializer : NSObject <DDFileLogMessageSerializer>
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@end
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@interface MLLogFileManager ()
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@end
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static NSString* appName = @"Monal";
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@implementation DDFileLogRawlogMessageSerializer
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-(NSData*) dataForString:(NSString*) string originatingFromMessage:(DDLogMessage*) logMessage
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{
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static uint64_t counter = 0;
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if(logMessage == nil)
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{
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NSLog(@"Error: logMessage should never be nil when calling dataForString:originatingFromMessage. Given log string: %@", string);
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return [NSData new]; //return empty data, e.g. write nothing
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}
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//encode log message
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NSError* error;
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NSData* rawData = [HelperTools convertLogmessageToJsonData:logMessage counter:&counter andError:&error];
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if(error != nil || rawData == nil)
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{
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NSLog(@"Error jsonifying log message: %@, logMessage: %@", error, logMessage);
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return [NSData new]; //return empty data, e.g. write nothing
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}
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//add 32bit length prefix
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NSAssert(rawData.length < (NSUInteger)1<<26, @"LogMessage is longer than 1<<26 bytes!");
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uint32_t length = CFSwapInt32HostToBig((uint32_t)rawData.length);
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NSMutableData* data = [[NSMutableData alloc] initWithBytes:&length length:sizeof(length)];
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[data appendData:rawData];
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//return length_prefix + json_encoded_data
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return data;
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}
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@end
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@implementation MLLogFileManager
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-(instancetype) initWithLogsDirectory:(NSString* _Nullable) dir
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{
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self = [super initWithLogsDirectory:dir];
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self.logMessageSerializer = [DDFileLogRawlogMessageSerializer new];
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return self;
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}
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-(NSString*) newLogFileName
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{
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NSDateFormatter* dateFormatter = [NSDateFormatter new];
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[dateFormatter setLocale:[NSLocale localeWithLocaleIdentifier:@"en_US_POSIX"]];
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[dateFormatter setTimeZone:[NSTimeZone timeZoneForSecondsFromGMT:0]];
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[dateFormatter setDateFormat: @"yyyy'-'MM'-'dd'--'HH'-'mm'-'ss'-'SSS'"];
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NSString* formattedDate = [dateFormatter stringFromDate:[NSDate date]];
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NSString* logfile = [NSString stringWithFormat:@"%@ %@.rawlog", appName, formattedDate];
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[HelperTools updateCurrentLogfilePath:logfile];
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return logfile;
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}
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-(BOOL) isLogFile:(NSString*) fileName
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{
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// We need to add a space to the name as otherwise we could match applications that have the name prefix.
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BOOL hasProperPrefix = [fileName hasPrefix:[appName stringByAppendingString:@" "]];
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BOOL hasProperSuffix = [fileName hasSuffix:@".rawlog"];
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return (hasProperPrefix && hasProperSuffix);
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}
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@end
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