session-ios/Signal/src/util/OWSScrubbingLogFormatter.m
2017-07-12 16:06:35 -04:00

43 lines
1.8 KiB
Objective-C

//
// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
//
#import "OWSScrubbingLogFormatter.h"
NS_ASSUME_NONNULL_BEGIN
@implementation OWSScrubbingLogFormatter
- (NSString *)formatLogMessage:(DDLogMessage *)logMessage
{
NSString *logString = [super formatLogMessage:logMessage];
NSRegularExpression *phoneRegex =
[NSRegularExpression regularExpressionWithPattern:@"\\+\\d{7,12}(\\d{3})"
options:NSRegularExpressionCaseInsensitive
error:nil];
logString = [phoneRegex stringByReplacingMatchesInString:logString
options:0
range:NSMakeRange(0, [logString length])
withTemplate:@"[ REDACTED_PHONE_NUMBER:xxx$1 ]"];
// We capture only the first two characters of the hex string for logging.
// example log line: "Called someFunction with nsData: <01234567 89abcdef>"
// scrubbed output: "Called someFunction with nsData: [ REDACTED_DATA:01 ]"
NSRegularExpression *dataRegex =
[NSRegularExpression regularExpressionWithPattern:@"<([\\da-f]{2})[\\da-f]{6}( [\\da-f]{8})*>"
options:NSRegularExpressionCaseInsensitive
error:nil];
logString = [dataRegex stringByReplacingMatchesInString:logString
options:0
range:NSMakeRange(0, [logString length])
withTemplate:@"[ REDACTED_DATA:$1... ]"];
return logString;
}
@end
NS_ASSUME_NONNULL_END