static void OnUserDataApiGet1(const ClientModels::GetUserDataResult& result, void* customData) { auto it = result.Data.find(TEST_DATA_KEY); testMessageInt = (it == result.Data.end()) ? 1 : atoi(it->second.Value.c_str()); // testMessageTime = it->second.LastUpdated; // Don't need the first time testMessageInt = (testMessageInt + 1) % 100; ClientModels::UpdateUserDataRequest updateRequest; // itoa is not avaialable in android char buffer[16]; Aws::String temp; sprintf(buffer, "%d", testMessageInt); temp.append(buffer); updateRequest.Data[TEST_DATA_KEY] = temp; clientApi->UpdateUserData(updateRequest, OnUserDataApiUpdate, OnSharedError, customData); }
bool AWSAuthV4Signer::PresignRequest(Aws::Http::HttpRequest& request, const char* region, const char* serviceName, long long expirationTimeInSeconds) const { AWSCredentials credentials = m_credentialsProvider->GetAWSCredentials(); //don't sign anonymous requests if (credentials.GetAWSAccessKeyId().empty() || credentials.GetAWSSecretKey().empty()) { return true; } Aws::StringStream intConversionStream; intConversionStream << expirationTimeInSeconds; request.AddQueryStringParameter(Http::X_AMZ_EXPIRES_HEADER, intConversionStream.str()); if (!credentials.GetSessionToken().empty()) { request.AddQueryStringParameter(Http::AWS_SECURITY_TOKEN, credentials.GetSessionToken()); } //calculate date header to use in internal signature (this also goes into date header). DateTime now = GetSigningTimestamp(); Aws::String dateQueryValue = now.ToGmtString(LONG_DATE_FORMAT_STR); request.AddQueryStringParameter(Http::AWS_DATE_HEADER, dateQueryValue); Aws::StringStream ss; ss << Http::HOST_HEADER << ":" << request.GetHeaderValue(Http::HOST_HEADER) << NEWLINE; Aws::String canonicalHeadersString(ss.str()); ss.str(""); AWS_LOGSTREAM_DEBUG(v4LogTag, "Canonical Header String: " << canonicalHeadersString); //calculate signed headers parameter Aws::String signedHeadersValue(Http::HOST_HEADER); request.AddQueryStringParameter(X_AMZ_SIGNED_HEADERS, signedHeadersValue); AWS_LOGSTREAM_DEBUG(v4LogTag, "Signed Headers value: " << signedHeadersValue); Aws::String simpleDate = now.ToGmtString(SIMPLE_DATE_FORMAT_STR); ss << credentials.GetAWSAccessKeyId() << "/" << simpleDate << "/" << region << "/" << serviceName << "/" << AWS4_REQUEST; request.AddQueryStringParameter(X_AMZ_ALGORITHM, AWS_HMAC_SHA256); request.AddQueryStringParameter(X_AMZ_CREDENTIAL, ss.str()); ss.str(""); //generate generalized canonicalized request string. Aws::String canonicalRequestString = CanonicalizeRequestSigningString(request, m_urlEscapePath); //append v4 stuff to the canonical request string. canonicalRequestString.append(canonicalHeadersString); canonicalRequestString.append(NEWLINE); canonicalRequestString.append(signedHeadersValue); canonicalRequestString.append(NEWLINE); canonicalRequestString.append(UNSIGNED_PAYLOAD); AWS_LOGSTREAM_DEBUG(v4LogTag, "Canonical Request String: " << canonicalRequestString); //now compute sha256 on that request string auto hashResult = m_hash->Calculate(canonicalRequestString); if (!hashResult.IsSuccess()) { AWS_LOGSTREAM_ERROR(v4LogTag, "Failed to hash (sha256) request string \"" << canonicalRequestString << "\""); return false; } auto sha256Digest = hashResult.GetResult(); auto cannonicalRequestHash = HashingUtils::HexEncode(sha256Digest); auto stringToSign = GenerateStringToSign(dateQueryValue, simpleDate, cannonicalRequestHash); auto finalSigningHash = GenerateSignature(credentials, stringToSign, simpleDate); if (finalSigningHash.empty()) { return false; } //add that the signature to the query string request.AddQueryStringParameter(X_AMZ_SIGNATURE, finalSigningHash); return true; }
bool AWSAuthV4Signer::SignRequest(Aws::Http::HttpRequest& request, bool signBody) const { AWSCredentials credentials = m_credentialsProvider->GetAWSCredentials(); //don't sign anonymous requests if (credentials.GetAWSAccessKeyId().empty() || credentials.GetAWSSecretKey().empty()) { return true; } if (!credentials.GetSessionToken().empty()) { request.SetAwsSessionToken(credentials.GetSessionToken()); } Aws::String payloadHash(UNSIGNED_PAYLOAD); if(signBody || request.GetUri().GetScheme() != Http::Scheme::HTTPS) { payloadHash.assign(ComputePayloadHash(request)); if (payloadHash.empty()) { return false; } } else { AWS_LOGSTREAM_DEBUG(v4LogTag, "Note: Http payloads are not being signed. signPayloads=" << m_signPayloads << " http scheme=" << Http::SchemeMapper::ToString(request.GetUri().GetScheme())); } if(m_includeSha256HashHeader) { request.SetHeaderValue("x-amz-content-sha256", payloadHash); } //calculate date header to use in internal signature (this also goes into date header). DateTime now = GetSigningTimestamp(); Aws::String dateHeaderValue = now.ToGmtString(LONG_DATE_FORMAT_STR); request.SetHeaderValue(AWS_DATE_HEADER, dateHeaderValue); Aws::StringStream headersStream; Aws::StringStream signedHeadersStream; for (const auto& header : CanonicalizeHeaders(request.GetHeaders())) { if(ShouldSignHeader(header.first)) { headersStream << header.first.c_str() << ":" << header.second.c_str() << NEWLINE; signedHeadersStream << header.first.c_str() << ";"; } } Aws::String canonicalHeadersString = headersStream.str(); AWS_LOGSTREAM_DEBUG(v4LogTag, "Canonical Header String: " << canonicalHeadersString); //calculate signed headers parameter Aws::String signedHeadersValue = signedHeadersStream.str(); //remove that last semi-colon signedHeadersValue.erase(signedHeadersValue.length() - 1); AWS_LOGSTREAM_DEBUG(v4LogTag, "Signed Headers value:" << signedHeadersValue); //generate generalized canonicalized request string. Aws::String canonicalRequestString = CanonicalizeRequestSigningString(request, m_urlEscapePath); //append v4 stuff to the canonical request string. canonicalRequestString.append(canonicalHeadersString); canonicalRequestString.append(NEWLINE); canonicalRequestString.append(signedHeadersValue); canonicalRequestString.append(NEWLINE); canonicalRequestString.append(payloadHash); AWS_LOGSTREAM_DEBUG(v4LogTag, "Canonical Request String: " << canonicalRequestString); //now compute sha256 on that request string auto hashResult = m_hash->Calculate(canonicalRequestString); if (!hashResult.IsSuccess()) { AWS_LOGSTREAM_ERROR(v4LogTag, "Failed to hash (sha256) request string \"" << canonicalRequestString << "\""); return false; } auto sha256Digest = hashResult.GetResult(); Aws::String cannonicalRequestHash = HashingUtils::HexEncode(sha256Digest); Aws::String simpleDate = now.ToGmtString(SIMPLE_DATE_FORMAT_STR); Aws::String stringToSign = GenerateStringToSign(dateHeaderValue, simpleDate, cannonicalRequestHash); auto finalSignature = GenerateSignature(credentials, stringToSign, simpleDate); Aws::StringStream ss; ss << AWS_HMAC_SHA256 << " " << CREDENTIAL << EQ << credentials.GetAWSAccessKeyId() << "/" << simpleDate << "/" << m_region << "/" << m_serviceName << "/" << AWS4_REQUEST << ", " << SIGNED_HEADERS << EQ << signedHeadersValue << ", " << SIGNATURE << EQ << finalSignature; auto awsAuthString = ss.str(); AWS_LOGSTREAM_DEBUG(v4LogTag, "Signing request with: " << awsAuthString); request.SetAwsAuthorization(awsAuthString); return true; }