7499b3aaf0
Crypto Scheme: - Name (un)padding - WIP AES-GCM (funtioning, but need to verify against android implementation, and tag functionality) Changes to avatar API: - hard code avatar domain (cdn.signal.org) - avatar form hands out new avatar key, invalidating old avatar - preliminary aes-gcm integration Also: - New type to represent AES128 keys, rather than passing around opaque data blobs everywhere, we can use the compiler to help us make sure we're passing compliant keying material. - Started using factory pattern for API requests. This is intended to be a lighter weight way to implement new API requests, rather than the current 1-method class ceremony. // FREEBIE
44 lines
1.4 KiB
Objective-C
44 lines
1.4 KiB
Objective-C
//
|
|
// Copyright (c) 2017 Open Whisper Systems. All rights reserved.
|
|
//
|
|
|
|
#import "OWSRequestBuilder.h"
|
|
#import "TSRequest.h"
|
|
#import "TSConstants.h"
|
|
#import "NSData+Base64.h"
|
|
|
|
NS_ASSUME_NONNULL_BEGIN
|
|
|
|
const NSUInteger kEncodedNameLength = 72;
|
|
|
|
@implementation OWSRequestBuilder
|
|
|
|
+ (TSRequest *)profileNameSetRequestWithEncryptedPaddedName:(nullable NSData *)encryptedPaddedName
|
|
{
|
|
NSString *urlString;
|
|
|
|
NSString *base64EncodedName = [encryptedPaddedName base64EncodedString];
|
|
// name length must match exactly
|
|
if (base64EncodedName.length == kEncodedNameLength) {
|
|
// Remove any "/" in the base64 (all other base64 chars are URL safe.
|
|
// Apples built-in `stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URL*]]` doesn't offer a
|
|
// flavor for encoding "/".
|
|
NSString *urlEncodedName = [base64EncodedName stringByReplacingOccurrencesOfString:@"/" withString:@"%2F"];
|
|
urlString = [NSString stringWithFormat:textSecureSetProfileNameAPIFormat, urlEncodedName];
|
|
} else {
|
|
// if name length doesn't match exactly, assume blank name
|
|
OWSAssert(encryptedPaddedName == nil);
|
|
urlString = [NSString stringWithFormat:textSecureSetProfileNameAPIFormat, @""];
|
|
}
|
|
|
|
NSURL *url = [NSURL URLWithString:urlString];
|
|
TSRequest *request = [[TSRequest alloc] initWithURL:url];
|
|
request.HTTPMethod = @"PUT";
|
|
|
|
return request;
|
|
}
|
|
|
|
@end
|
|
|
|
NS_ASSUME_NONNULL_END
|