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Tencent Cloud Open API SDK for Java
/*
* Copyright (c) 2018 THL A29 Limited, a Tencent company. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package com.tencentcloudapi.common;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonSyntaxException;
import com.google.gson.reflect.TypeToken;
import com.tencentcloudapi.common.exception.TencentCloudSDKException;
import com.tencentcloudapi.common.http.HttpConnection;
import com.tencentcloudapi.common.profile.ClientProfile;
import com.tencentcloudapi.common.profile.HttpProfile;
import okhttp3.*;
import okhttp3.Headers.Builder;
import javax.crypto.Mac;
import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.SSLContext;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.X509TrustManager;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.UnsupportedEncodingException;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Type;
import java.net.InetSocketAddress;
import java.net.Proxy;
import java.net.URLEncoder;
import java.nio.charset.StandardCharsets;
import java.security.SecureRandom;
import java.sql.Date;
import java.text.SimpleDateFormat;
import java.util.*;
public abstract class AbstractClient {
public static final int HTTP_RSP_OK = 200;
public static final String SDK_VERSION = "SDK_JAVA_3.1.1097";
public Gson gson;
private Credential credential;
private ClientProfile profile;
private String endpoint;
private String service;
private String region;
private String path;
private String sdkVersion;
private String apiVersion;
private TCLog log;
private HttpConnection httpConnection;
private CircuitBreaker regionBreaker;
public AbstractClient(String endpoint, String version, Credential credential, String region) {
this(endpoint, version, credential, region, new ClientProfile());
}
public AbstractClient(
String endpoint,
String version,
Credential credential,
String region,
ClientProfile profile) {
this.credential = credential;
this.profile = profile;
this.endpoint = endpoint;
this.service = endpoint.split("\\.")[0];
this.region = region;
this.path = "/";
this.sdkVersion = AbstractClient.SDK_VERSION;
this.apiVersion = version;
this.gson = new GsonBuilder().excludeFieldsWithoutExposeAnnotation().create();
this.log = new TCLog(getClass().getName(), profile.isDebug());
this.httpConnection = new HttpConnection(
this.profile.getHttpProfile().getConnTimeout(),
this.profile.getHttpProfile().getReadTimeout(),
this.profile.getHttpProfile().getWriteTimeout()
);
this.httpConnection.addInterceptors(this.log);
this.trySetProxy(this.httpConnection);
this.trySetSSLSocketFactory(this.httpConnection);
this.trySetRegionBreaker();
this.trySetHostnameVerifier(this.httpConnection);
warmup();
}
public String getRegion() {
return this.region;
}
public void setRegion(String region) {
this.region = region;
}
public ClientProfile getClientProfile() {
return this.profile;
}
public void setClientProfile(ClientProfile profile) {
this.profile = profile;
}
public Credential getCredential() {
return this.credential;
}
public void setCredential(Credential credential) {
this.credential = credential;
}
/**
* Use post/json with tc3-hmac-sha256 signature to call any action. Ignore request method and
* signature method defined in profile.
*
* @param action Name of action to be called.
* @param jsonPayload Parameters of action serialized in json string format.
* @return Raw response from API if request succeeded, otherwise an exception will be raised
* instead of raw response
* @throws TencentCloudSDKException
*/
public String call(String action, String jsonPayload) throws TencentCloudSDKException {
HashMap headers = this.getHeaders();
headers.put("X-TC-Action", action);
headers.put("Content-Type", "application/json; charset=utf-8");
byte[] requestPayload = jsonPayload.getBytes(StandardCharsets.UTF_8);
String authorization = this.getAuthorization(headers, requestPayload);
headers.put("Authorization", authorization);
String url = this.profile.getHttpProfile().getProtocol() + this.getEndpoint() + this.path;
return this.getResponseBody(url, headers, requestPayload);
}
/**
* Use post application/octet-stream with tc3-hmac-sha256 signature to call specific action.
* Ignore request method and signature method defined in profile.
*
* @param action Name of action to be called.
* @param headers Parameters of the action, will be put in http header.
* @param body octet-stream binary body.
* @return Raw response from API if request succeeded, otherwise an exception will be raised
* instead of raw response
* @throws TencentCloudSDKException
*/
public String callOctetStream(String action, HashMap headers, byte[] body)
throws TencentCloudSDKException {
headers.putAll(this.getHeaders());
headers.put("X-TC-Action", action);
headers.put("Content-Type", "application/octet-stream; charset=utf-8");
String authorization = this.getAuthorization(headers, body);
headers.put("Authorization", authorization);
String url = this.profile.getHttpProfile().getProtocol() + this.getEndpoint() + this.path;
return this.getResponseBody(url, headers, body);
}
private HashMap getHeaders() {
HashMap headers = new HashMap();
String timestamp = String.valueOf(System.currentTimeMillis() / 1000);
headers.put("X-TC-Timestamp", timestamp);
headers.put("X-TC-Version", this.apiVersion);
headers.put("X-TC-Region", this.getRegion());
headers.put("X-TC-RequestClient", SDK_VERSION);
headers.put("Host", this.getEndpoint());
String token = this.credential.getToken();
if (token != null && !token.isEmpty()) {
headers.put("X-TC-Token", token);
}
if (this.profile.isUnsignedPayload()) {
headers.put("X-TC-Content-SHA256", "UNSIGNED-PAYLOAD");
}
if (null != this.profile.getLanguage()) {
headers.put("X-TC-Language", this.profile.getLanguage().getValue());
}
return headers;
}
private String getAuthorization(HashMap headers, byte[] body)
throws TencentCloudSDKException {
String endpoint = this.getEndpoint();
// always use post tc3-hmac-sha256 signature process
// okhttp always set charset even we don't specify it,
// to ensure signature be correct, we have to set it here as well.
String contentType = headers.get("Content-Type");
byte[] requestPayload = body;
String canonicalUri = "/";
String canonicalQueryString = "";
String canonicalHeaders = "content-type:" + contentType + "\nhost:" + endpoint + "\n";
String signedHeaders = "content-type;host";
String hashedRequestPayload = "";
if (this.profile.isUnsignedPayload()) {
hashedRequestPayload = Sign.sha256Hex("UNSIGNED-PAYLOAD".getBytes(StandardCharsets.UTF_8));
} else {
hashedRequestPayload = Sign.sha256Hex(requestPayload);
}
String canonicalRequest =
HttpProfile.REQ_POST
+ "\n"
+ canonicalUri
+ "\n"
+ canonicalQueryString
+ "\n"
+ canonicalHeaders
+ "\n"
+ signedHeaders
+ "\n"
+ hashedRequestPayload;
String timestamp = headers.get("X-TC-Timestamp");
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
String date = sdf.format(new Date(Long.valueOf(timestamp + "000")));
String service = endpoint.split("\\.")[0];
String credentialScope = date + "/" + service + "/" + "tc3_request";
String hashedCanonicalRequest =
Sign.sha256Hex(canonicalRequest.getBytes(StandardCharsets.UTF_8));
String stringToSign =
"TC3-HMAC-SHA256\n" + timestamp + "\n" + credentialScope + "\n" + hashedCanonicalRequest;
String secretId = this.credential.getSecretId();
String secretKey = this.credential.getSecretKey();
byte[] secretDate = Sign.hmac256(("TC3" + secretKey).getBytes(StandardCharsets.UTF_8), date);
byte[] secretService = Sign.hmac256(secretDate, service);
byte[] secretSigning = Sign.hmac256(secretService, "tc3_request");
String signature =
DatatypeConverter.printHexBinary(Sign.hmac256(secretSigning, stringToSign)).toLowerCase();
return "TC3-HMAC-SHA256 "
+ "Credential="
+ secretId
+ "/"
+ credentialScope
+ ", "
+ "SignedHeaders="
+ signedHeaders
+ ", "
+ "Signature="
+ signature;
}
private String getResponseBody(String url, HashMap headers, byte[] body)
throws TencentCloudSDKException {
Builder hb = new Headers.Builder();
for (String key : headers.keySet()) {
hb.add(key, headers.get(key));
}
Response resp = null;
try {
resp = this.httpConnection.postRequest(url, body, hb.build());
} catch (IOException e) {
throw new TencentCloudSDKException(e.getClass().getName() + "-" + e.getMessage(), e);
}
if (resp.code() != AbstractClient.HTTP_RSP_OK) {
String msg = "response code is " + resp.code() + ", not 200";
log.info(msg);
throw new TencentCloudSDKException(msg, "", "ServerSideError");
}
String respbody = null;
try {
respbody = resp.body().string();
} catch (IOException e) {
String msg =
"Cannot transfer response body to string, because Content-Length is too large, or Content-Length and stream length disagree.";
log.info(msg);
throw new TencentCloudSDKException(msg, e);
}
JsonResponseModel errResp = null;
try {
Type errType = new TypeToken>() {
}.getType();
errResp = gson.fromJson(respbody, errType);
} catch (JsonSyntaxException e) {
String msg = "json is not a valid representation for an object of type";
log.info(msg);
throw new TencentCloudSDKException(msg, e);
}
if (errResp.response.error != null) {
throw new TencentCloudSDKException(
errResp.response.error.message, errResp.response.requestId, errResp.response.error.code);
}
return respbody;
}
private void trySetProxy(HttpConnection conn) {
String host = this.profile.getHttpProfile().getProxyHost();
int port = this.profile.getHttpProfile().getProxyPort();
if (host == null || host.isEmpty()) {
return;
}
Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(host, port));
conn.setProxy(proxy);
final String username = this.profile.getHttpProfile().getProxyUsername();
final String password = this.profile.getHttpProfile().getProxyPassword();
if (username == null || username.isEmpty()) {
return;
}
conn.setProxyAuthenticator(
new Authenticator() {
@Override
public Request authenticate(Route route, Response response) throws IOException {
String credential = Credentials.basic(username, password);
return response
.request()
.newBuilder()
.header("Proxy-Authorization", credential)
.build();
}
});
}
private void trySetSSLSocketFactory(HttpConnection conn) {
SSLSocketFactory sslSocketFactory = this.profile.getHttpProfile().getSslSocketFactory();
X509TrustManager trustManager = this.profile.getHttpProfile().getX509TrustManager();
if (sslSocketFactory != null) {
if (trustManager != null) {
this.httpConnection.setSSLSocketFactory(sslSocketFactory, trustManager);
} else {
this.httpConnection.setSSLSocketFactory(sslSocketFactory);
}
}
}
private void trySetHostnameVerifier(HttpConnection conn) {
HostnameVerifier hostnameVerifier = this.profile.getHttpProfile().getHostnameVerifier();
if (hostnameVerifier != null) {
this.httpConnection.setHostnameVerifier(hostnameVerifier);
}
}
private void trySetRegionBreaker() {
String ep = profile.getBackupEndpoint();
if (ep != null && !ep.isEmpty()) {
this.regionBreaker = new CircuitBreaker();
}
}
protected String internalRequest(AbstractModel request, String actionName)
throws TencentCloudSDKException {
CircuitBreaker.Token breakerToken = null;
if (regionBreaker != null) {
breakerToken = regionBreaker.allow();
if (!breakerToken.allowed) {
endpoint = service + "." + profile.getBackupEndpoint();
}
}
Response okRsp;
try {
okRsp = internalRequestRaw(request, actionName);
} catch (IOException e) {
// network failure, consider region failure
if (breakerToken != null) {
breakerToken.report(false);
}
throw new TencentCloudSDKException("", e);
}
String strResp;
try {
strResp = okRsp.body().string();
} catch (IOException e) {
String msg = "Cannot transfer response body to string, because Content-Length is too large, or Content-Length and stream length disagree.";
log.info(msg);
throw new TencentCloudSDKException(msg, e);
}
JsonResponseModel errResp;
try {
Type errType = new TypeToken>() {
}.getType();
errResp = gson.fromJson(strResp, errType);
} catch (JsonSyntaxException e) {
String msg = "json is not a valid representation for an object of type";
log.info(msg);
throw new TencentCloudSDKException(msg, e);
}
if (errResp.response.error != null) {
if (breakerToken != null) {
JsonResponseErrModel error = errResp.response;
boolean regionOk = error.requestId != null
&& !error.requestId.isEmpty()
&& error.error.code != null
&& !error.error.code.equals("InternalError");
breakerToken.report(regionOk);
}
throw new TencentCloudSDKException(
errResp.response.error.message,
errResp.response.requestId,
errResp.response.error.code);
}
return strResp;
}
protected T internalRequest(AbstractModel request, String actionName, Class typeOfT)
throws TencentCloudSDKException {
CircuitBreaker.Token breakerToken = null;
if (regionBreaker != null) {
breakerToken = regionBreaker.allow();
if (!breakerToken.allowed) {
endpoint = service + "." + profile.getBackupEndpoint();
}
}
try {
Response resp = internalRequestRaw(request, actionName);
if (Objects.equals(resp.header("Content-Type"), "text/event-stream")) {
return processResponseSSE(resp, typeOfT, breakerToken);
}
return processResponseJson(resp, typeOfT, breakerToken);
} catch (IOException e) {
// network failure, consider region failure
if (breakerToken != null) {
breakerToken.report(false);
}
throw new TencentCloudSDKException("", e);
}
}
protected T processResponseSSE(Response resp, Class typeOfT, CircuitBreaker.Token breakerToken) throws TencentCloudSDKException {
SSEResponseModel responseModel;
try {
responseModel = (SSEResponseModel) typeOfT.newInstance();
} catch (InstantiationException | IllegalAccessException e) {
throw new TencentCloudSDKException("", e);
}
responseModel.setRequestId(resp.header("X-TC-RequestId"));
responseModel.setToken(breakerToken);
responseModel.setResponse(resp);
return (T) responseModel;
}
protected T processResponseJson(Response resp, Class typeOfT, CircuitBreaker.Token breakerToken) throws TencentCloudSDKException {
String body;
try {
body = resp.body().string();
} catch (IOException e) {
String msg = "Cannot transfer response body to string, because Content-Length is too large, or Content-Length and stream length disagree.";
log.info(msg);
throw new TencentCloudSDKException(msg, e);
}
JsonResponseModel errResp;
try {
Type errType = new TypeToken>() {
}.getType();
errResp = gson.fromJson(body, errType);
} catch (JsonSyntaxException e) {
String msg = "json is not a valid representation for an object of type";
log.info(msg);
throw new TencentCloudSDKException(msg, e);
}
if (errResp.response.error != null) {
if (breakerToken != null) {
JsonResponseErrModel error = errResp.response;
boolean regionOk = error.requestId != null
&& !error.requestId.isEmpty()
&& error.error.code != null
&& !error.error.code.equals("InternalError");
breakerToken.report(regionOk);
}
throw new TencentCloudSDKException(
errResp.response.error.message,
errResp.response.requestId,
errResp.response.error.code);
}
Type type = TypeToken.getParameterized(JsonResponseModel.class, typeOfT).getType();
return ((JsonResponseModel) gson.fromJson(body, type)).response;
}
protected Response internalRequestRaw(AbstractModel request, String actionName)
throws TencentCloudSDKException, IOException {
Response okRsp = null;
String endpoint = this.getEndpoint();
String[] binaryParams = request.getBinaryParams();
String sm = this.profile.getSignMethod();
String reqMethod = this.profile.getHttpProfile().getReqMethod();
// currently, customized params only can be supported via post json tc3-hmac-sha256
HashMap customizedParams = request.any();
if (customizedParams.size() > 0) {
if (binaryParams.length > 0) {
throw new TencentCloudSDKException(
"WrongUsage: Cannot post multipart with customized parameters.");
}
if (sm.equals(ClientProfile.SIGN_SHA1) || sm.equals(ClientProfile.SIGN_SHA256)) {
throw new TencentCloudSDKException(
"WrongUsage: Cannot use HmacSHA1 or HmacSHA256 with customized parameters.");
}
if (reqMethod.equals(HttpProfile.REQ_GET)) {
throw new TencentCloudSDKException(
"WrongUsage: Cannot use get method with customized parameters.");
}
}
if (binaryParams.length > 0 || sm.equals(ClientProfile.SIGN_TC3_256)) {
okRsp = doRequestWithTC3(endpoint, request, actionName);
} else if (sm.equals(ClientProfile.SIGN_SHA1) || sm.equals(ClientProfile.SIGN_SHA256)) {
okRsp = doRequest(endpoint, request, actionName);
} else {
throw new TencentCloudSDKException(
"Signature method " + sm + " is invalid or not supported yet.");
}
if (okRsp.code() != AbstractClient.HTTP_RSP_OK) {
String msg = "response code is " + okRsp.code() + ", not 200";
log.info(msg);
throw new TencentCloudSDKException(msg, "", "ServerSideError");
}
return okRsp;
}
private Response doRequest(String endpoint, AbstractModel request, String action)
throws TencentCloudSDKException, IOException {
HashMap param = new HashMap();
request.toMap(param, "");
String strParam = this.formatRequestData(action, param);
String reqMethod = this.profile.getHttpProfile().getReqMethod();
String protocol = this.profile.getHttpProfile().getProtocol();
String url = protocol + endpoint + this.path;
String apigwEndpoint = this.profile.getHttpProfile().getApigwEndpoint();
if (null != apigwEndpoint) {
url = protocol + apigwEndpoint;
}
if (reqMethod.equals(HttpProfile.REQ_GET)) {
return this.httpConnection.getRequest(url + "?" + strParam);
} else if (reqMethod.equals(HttpProfile.REQ_POST)) {
return this.httpConnection.postRequest(url, strParam);
} else {
throw new TencentCloudSDKException("Method only support (GET, POST)");
}
}
private Response doRequestWithTC3(String endpoint, AbstractModel request, String action)
throws TencentCloudSDKException, IOException {
String httpRequestMethod = this.profile.getHttpProfile().getReqMethod();
if (httpRequestMethod == null) {
throw new TencentCloudSDKException(
"Request method should not be null, can only be GET or POST");
}
String contentType = "application/x-www-form-urlencoded";
byte[] requestPayload = "".getBytes(StandardCharsets.UTF_8);
HashMap params = new HashMap();
request.toMap(params, "");
String[] binaryParams = request.getBinaryParams();
if (binaryParams.length > 0) {
httpRequestMethod = HttpProfile.REQ_POST;
String boundary = UUID.randomUUID().toString();
// okhttp always set charset even we don't specify it,
// to ensure signature be correct, we have to set it here as well.
contentType = "multipart/form-data; charset=utf-8" + "; boundary=" + boundary;
try {
requestPayload = getMultipartPayload(request, boundary);
} catch (Exception e) {
throw new TencentCloudSDKException("Failed to generate multipart.", e);
}
} else if (httpRequestMethod.equals(HttpProfile.REQ_POST)) {
requestPayload = AbstractModel.toJsonString(request).getBytes(StandardCharsets.UTF_8);
// okhttp always set charset even we don't specify it,
// to ensure signature be correct, we have to set it here as well.
contentType = "application/json; charset=utf-8";
}
String canonicalUri = "/";
String canonicalQueryString = this.getCanonicalQueryString(params, httpRequestMethod);
String canonicalHeaders = "content-type:" + contentType + "\nhost:" + endpoint + "\n";
String signedHeaders = "content-type;host";
String hashedRequestPayload = "";
if (this.profile.isUnsignedPayload()) {
hashedRequestPayload = Sign.sha256Hex("UNSIGNED-PAYLOAD".getBytes(StandardCharsets.UTF_8));
} else {
hashedRequestPayload = Sign.sha256Hex(requestPayload);
}
String canonicalRequest =
httpRequestMethod
+ "\n"
+ canonicalUri
+ "\n"
+ canonicalQueryString
+ "\n"
+ canonicalHeaders
+ "\n"
+ signedHeaders
+ "\n"
+ hashedRequestPayload;
String timestamp = String.valueOf(System.currentTimeMillis() / 1000);
SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd");
sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
String date = sdf.format(new Date(Long.valueOf(timestamp + "000")));
String service = endpoint.split("\\.")[0];
String credentialScope = date + "/" + service + "/" + "tc3_request";
String hashedCanonicalRequest =
Sign.sha256Hex(canonicalRequest.getBytes(StandardCharsets.UTF_8));
String stringToSign =
"TC3-HMAC-SHA256\n" + timestamp + "\n" + credentialScope + "\n" + hashedCanonicalRequest;
boolean skipSign = request.getSkipSign();
String authorization = "";
if (skipSign) {
authorization = "SKIP";
} else {
String secretId = this.credential.getSecretId();
String secretKey = this.credential.getSecretKey();
byte[] secretDate = Sign.hmac256(("TC3" + secretKey).getBytes(StandardCharsets.UTF_8), date);
byte[] secretService = Sign.hmac256(secretDate, service);
byte[] secretSigning = Sign.hmac256(secretService, "tc3_request");
String signature =
DatatypeConverter.printHexBinary(Sign.hmac256(secretSigning, stringToSign)).toLowerCase();
authorization =
"TC3-HMAC-SHA256 "
+ "Credential="
+ secretId
+ "/"
+ credentialScope
+ ", "
+ "SignedHeaders="
+ signedHeaders
+ ", "
+ "Signature="
+ signature;
}
Builder hb = new Headers.Builder();
hb.add("Content-Type", contentType)
.add("Host", endpoint)
.add("Authorization", authorization)
.add("X-TC-Action", action)
.add("X-TC-Timestamp", timestamp)
.add("X-TC-Version", this.apiVersion)
.add("X-TC-RequestClient", SDK_VERSION);
if (null != request.GetHeader()) {
for (Map.Entry entry : request.GetHeader().entrySet()) {
hb.add(entry.getKey(), entry.getValue());
}
}
if (null != this.getRegion()) {
hb.add("X-TC-Region", this.getRegion());
}
String token = this.credential.getToken();
if (token != null && !token.isEmpty()) {
hb.add("X-TC-Token", token);
}
if (this.profile.isUnsignedPayload()) {
hb.add("X-TC-Content-SHA256", "UNSIGNED-PAYLOAD");
}
if (null != this.profile.getLanguage()) {
hb.add("X-TC-Language", this.profile.getLanguage().getValue());
}
String protocol = this.profile.getHttpProfile().getProtocol();
String url = protocol + endpoint + this.path;
String apigwEndpoint = this.profile.getHttpProfile().getApigwEndpoint();
if (null != apigwEndpoint) {
url = protocol + apigwEndpoint;
hb.set("Host", apigwEndpoint);
}
Headers headers = hb.build();
if (httpRequestMethod.equals(HttpProfile.REQ_GET)) {
return this.httpConnection.getRequest(url + "?" + canonicalQueryString, headers);
} else if (httpRequestMethod.equals(HttpProfile.REQ_POST)) {
return this.httpConnection.postRequest(url, requestPayload, headers);
} else {
throw new TencentCloudSDKException("Method only support GET, POST");
}
}
private byte[] getMultipartPayload(AbstractModel request, String boundary) throws Exception {
ByteArrayOutputStream baos = new ByteArrayOutputStream();
String[] binaryParams = request.getBinaryParams();
for (Map.Entry entry : request.getMultipartRequestParams().entrySet()) {
baos.write("--".getBytes(StandardCharsets.UTF_8));
baos.write(boundary.getBytes(StandardCharsets.UTF_8));
baos.write("\r\n".getBytes(StandardCharsets.UTF_8));
baos.write("Content-Disposition: form-data; name=\"".getBytes(StandardCharsets.UTF_8));
baos.write(entry.getKey().getBytes(StandardCharsets.UTF_8));
if (Arrays.asList(binaryParams).contains(entry.getKey())) {
baos.write("\"; filename=\"".getBytes(StandardCharsets.UTF_8));
baos.write(entry.getKey().getBytes(StandardCharsets.UTF_8));
baos.write("\"\r\n".getBytes(StandardCharsets.UTF_8));
} else {
baos.write("\"\r\n".getBytes(StandardCharsets.UTF_8));
}
baos.write("\r\n".getBytes(StandardCharsets.UTF_8));
baos.write(entry.getValue());
baos.write("\r\n".getBytes(StandardCharsets.UTF_8));
}
if (baos.size() != 0) {
baos.write("--".getBytes(StandardCharsets.UTF_8));
baos.write(boundary.getBytes(StandardCharsets.UTF_8));
baos.write("--\r\n".getBytes(StandardCharsets.UTF_8));
}
byte[] bytes = baos.toByteArray();
baos.close();
return bytes;
}
private String getCanonicalQueryString(HashMap params, String method)
throws TencentCloudSDKException {
if (method != null && method.equals(HttpProfile.REQ_POST)) {
return "";
}
StringBuilder queryString = new StringBuilder("");
for (Map.Entry entry : params.entrySet()) {
String v;
try {
v = URLEncoder.encode(entry.getValue(), "UTF8");
} catch (UnsupportedEncodingException e) {
throw new TencentCloudSDKException("UTF8 is not supported.", e);
}
queryString.append("&").append(entry.getKey()).append("=").append(v);
}
if (queryString.length() == 0) {
return "";
} else {
return queryString.toString().substring(1);
}
}
private String formatRequestData(String action, Map param)
throws TencentCloudSDKException {
param.put("Action", action);
param.put("RequestClient", this.sdkVersion);
param.put("Nonce", String.valueOf(Math.abs(new SecureRandom().nextInt())));
param.put("Timestamp", String.valueOf(System.currentTimeMillis() / 1000));
param.put("Version", this.apiVersion);
if (this.credential.getSecretId() != null && (!this.credential.getSecretId().isEmpty())) {
param.put("SecretId", this.credential.getSecretId());
}
if (this.region != null && (!this.region.isEmpty())) {
param.put("Region", this.region);
}
if (this.profile.getSignMethod() != null && (!this.profile.getSignMethod().isEmpty())) {
param.put("SignatureMethod", this.profile.getSignMethod());
}
if (this.credential.getToken() != null && (!this.credential.getToken().isEmpty())) {
param.put("Token", this.credential.getToken());
}
if (null != this.profile.getLanguage()) {
param.put("Language", this.profile.getLanguage().getValue());
}
String endpoint = this.getEndpoint();
String sigInParam =
Sign.makeSignPlainText(
new TreeMap(param),
this.profile.getHttpProfile().getReqMethod(),
endpoint,
this.path);
String sigOutParam =
Sign.sign(this.credential.getSecretKey(), sigInParam, this.profile.getSignMethod());
String strParam = "";
try {
for (Map.Entry entry : param.entrySet()) {
strParam +=
(URLEncoder.encode(entry.getKey(), "utf-8")
+ "="
+ URLEncoder.encode(entry.getValue(), "utf-8")
+ "&");
}
strParam += ("Signature=" + URLEncoder.encode(sigOutParam, "utf-8"));
} catch (UnsupportedEncodingException e) {
throw new TencentCloudSDKException("", e);
}
return strParam;
}
/**
* warm up, try to avoid unnecessary cost in the first request
*/
private void warmup() {
try {
// it happens in SDK signature process.
// first invoke costs around 250 ms.
Mac.getInstance("HmacSHA1");
Mac.getInstance("HmacSHA256");
// it happens inside okhttp, but I think any https framework/package will do the same.
// first invoke costs around 150 ms.
SSLContext sslContext = SSLContext.getInstance("TLS");
sslContext.init(null, null, null);
} catch (Exception e) {
// ignore but print message to console
e.printStackTrace();
}
}
private String getEndpoint() {
// in case user has reset endpoint after init this client
if (null != this.profile.getHttpProfile().getEndpoint()) {
return this.profile.getHttpProfile().getEndpoint();
} else {
// protected abstract String getService();
// use this.getService() from overrided subclass will be better
return this.service + "." + this.profile.getHttpProfile().getRootDomain();
}
}
/**
* 请注意购买类接口谨慎调用，可能导致多次购买
* 仅幂等接口推荐使用
*
* @param req
* @param retryTimes
* @throws TencentCloudSDKException
*/
public Object retry(AbstractModel req, int retryTimes) throws TencentCloudSDKException {
if (retryTimes < 0 || retryTimes > 10) {
throw new TencentCloudSDKException("The number of retryTimes supported is 0 to 10.", "", "ClientSideError");
}
Class cls = this.getClass();
String methodName = req.getClass().getSimpleName().replace("Request", "");
Method method;
try {
method = cls.getMethod(methodName, req.getClass());
} catch (NoSuchMethodException e) {
throw new TencentCloudSDKException("ClientSideError", e);
}
do {
try {
return method.invoke(this, req);
} catch (IllegalAccessException e) {
throw new TencentCloudSDKException("ClientSideError", e);
} catch (InvocationTargetException e) {
if (retryTimes == 0) {
throw (TencentCloudSDKException) e.getTargetException();
}
}
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
throw new TencentCloudSDKException("ClientSideError", e);
}
} while (--retryTimes >= 0);
return null;
}
public CircuitBreaker getRegionBreaker() {
return regionBreaker;
}
public void setRegionBreaker(CircuitBreaker regionBreaker) {
this.regionBreaker = regionBreaker;
}
}