package com.ard.web.controller.sample.media;
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import com.ard.oss.model.CredentialsDTO;
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import com.ard.oss.service.impl.OssServiceContext;
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import io.swagger.annotations.Api;
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import io.swagger.annotations.ApiOperation;
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import lombok.extern.slf4j.Slf4j;
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import okhttp3.*;
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import okio.BufferedSink;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RestController;
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import javax.servlet.http.HttpServletRequest;
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import javax.servlet.http.HttpServletResponse;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.Enumeration;
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import java.util.concurrent.TimeUnit;
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/**
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* MinIO STS代理控制器（终极版）
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* 1. 彻底清除客户端鉴权头 + 替换为代理侧STS凭证
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* 2. 强制HTTP通信（绕过SSL连接重置问题）
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* 3. 适配分块上传全流程
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*/
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@Api(tags = "机场上传minio")
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@Slf4j
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@RestController
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@RequestMapping("/minioTransfer")
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public class MinioStsProxyController {
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// ==================== 常量配置 ====================
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private static final String PROXY_PREFIX = "/minioTransfer";
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private static final int BUFFER_SIZE = 65536; // 64K缓冲区
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private static final long MAX_MEMORY_SIZE = 1024 * 1024 * 100; // 100MB
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private static final String X_AMZ_SECURITY_TOKEN = "X-Amz-Security-Token";
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private static final String TRANSFER_ENCODING = "Transfer-Encoding";
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private static final String HOST = "Host";
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// 需清除的客户端鉴权头（核心：避免和代理侧凭证冲突）
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private static final String[] AUTH_HEADERS_TO_REMOVE = {
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"Authorization", "X-Amz-Access-Key-Id", "X-Amz-Secret-Access-Key",
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"X-Amz-Security-Token", "AccessKey", "SecretKey", "Token"
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};
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// 配置注入
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@Value("${oss.endpoint}")
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private String minioEndpoint;
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private Integer connectTimeout = 30;
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private Integer readWriteTimeout = 1800;
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@Autowired
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private OssServiceContext ossService;
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// OkHttp客户端（禁用SSL，强制HTTP，最大化兼容性）
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private static OkHttpClient httpClient;
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static {
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// 构建纯HTTP客户端（彻底绕过SSL问题）
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httpClient = new OkHttpClient.Builder()
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.connectTimeout(30, TimeUnit.SECONDS)
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.readTimeout(1800, TimeUnit.SECONDS) // 30分钟超时
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.writeTimeout(1800, TimeUnit.SECONDS)
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.connectionPool(new ConnectionPool(30, 10, TimeUnit.MINUTES))
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.retryOnConnectionFailure(true) // 开启重试
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.pingInterval(10, TimeUnit.SECONDS) // TCP保活
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.callTimeout(60, TimeUnit.SECONDS)
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.build();
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log.info("OkHttp客户端初始化完成（纯HTTP模式，禁用SSL）");
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}
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/**
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* 核心代理方法：清除客户端鉴权 + 替换为代理侧STS凭证
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*/
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@ApiOperation("MinIO STS代理（清除客户端鉴权+强制HTTP）")
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@RequestMapping("/**")
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public void proxyRequest(HttpServletRequest request, HttpServletResponse response) {
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String method = request.getMethod();
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String requestUri = request.getRequestURI();
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String queryString = request.getQueryString();
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long contentLength = request.getContentLengthLong();
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log.info("STS代理请求开始 | 方法:{} | URI:{} | 参数:{} | 内容长度:{}B",
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method, requestUri, queryString, contentLength);
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// 1. 构造目标地址（强制转换为HTTP，无论配置的是HTTPS）
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String targetUrl = buildTargetUrl(requestUri, queryString);
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if (targetUrl == null) {
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sendError(response, HttpServletResponse.SC_BAD_REQUEST, "请求路径非法");
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return;
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}
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// 2. 获取代理侧STS凭证（核心：替换客户端鉴权）
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CredentialsDTO credentials = getCredentials();
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if (credentials == null) {
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sendError(response, HttpServletResponse.SC_FORBIDDEN, "STS凭证无效");
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return;
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}
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// 3. 构建请求（清除客户端鉴权 + 注入代理侧凭证）
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try {
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Request okRequest = buildRequest(request, method, targetUrl, credentials);
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forwardResponse(okRequest, response);
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log.info("STS代理请求成功 | 目标地址:{}", targetUrl);
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} catch (Exception e) {
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log.error("STS代理请求执行异常", e);
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String errorMsg = e.getMessage().contains("Connection reset") ?
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"MinIO连接重置（已强制HTTP，需检查MinIO服务是否启动）" : "代理服务异常";
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sendError(response, HttpServletResponse.SC_INTERNAL_SERVER_ERROR, errorMsg);
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}
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}
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/**
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* 构造目标地址：强制转换为HTTP（核心解决SSL问题）
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*/
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private String buildTargetUrl(String requestUri, String queryString) {
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try {
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String targetPath = requestUri.substring(PROXY_PREFIX.length());
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// 强制将HTTPS转为HTTP（无论配置的endpoint是啥）
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String httpEndpoint = minioEndpoint.replace("https://", "http://");
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// 修正端口：MinIO HTTPS默认9001 → HTTP默认9000
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if (httpEndpoint.contains(":9001")) {
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httpEndpoint = httpEndpoint.replace(":9001", ":9000");
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}
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StringBuilder urlBuilder = new StringBuilder(httpEndpoint).append(targetPath);
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if (queryString != null && !queryString.isBlank()) {
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urlBuilder.append("?").append(queryString);
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}
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String targetUrl = urlBuilder.toString();
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log.info("构造目标地址（强制HTTP）：{}", targetUrl);
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return targetUrl;
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} catch (Exception e) {
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log.error("构造目标地址失败", e);
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return null;
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}
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}
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/**
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* 获取代理侧STS凭证（确保完整性）
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*/
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private CredentialsDTO getCredentials() {
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try {
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CredentialsDTO dto = ossService.getCredentials();
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if (dto == null || dto.getAccessKeyId() == null || dto.getAccessKeySecret() == null || dto.getSecurityToken() == null) {
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log.error("STS凭证核心字段缺失（AK/SK/Token）");
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return null;
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}
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log.info("STS凭证获取成功 | AK前缀:{}", dto.getAccessKeyId().substring(0, 4) + "***");
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return dto;
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} catch (Exception e) {
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log.error("获取STS凭证异常", e);
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return null;
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}
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}
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/**
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* 构建请求：彻底清除客户端鉴权头 + 注入代理侧STS凭证
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*/
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private Request buildRequest(HttpServletRequest request, String method, String url, CredentialsDTO credentials) throws IOException {
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Request.Builder builder = new Request.Builder().url(url);
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// ========== 核心步骤1：清除所有客户端鉴权头 ==========
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Enumeration<String> headerNames = request.getHeaderNames();
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while (headerNames.hasMoreElements()) {
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String name = headerNames.nextElement();
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// 跳过Host头（OkHttp自动处理）
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if (name.equalsIgnoreCase(HOST)) {
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continue;
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}
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// 跳过所有鉴权相关头（避免冲突）
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boolean isAuthHeader = false;
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for (String authHeader : AUTH_HEADERS_TO_REMOVE) {
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if (name.equalsIgnoreCase(authHeader)) {
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isAuthHeader = true;
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log.info("清除客户端鉴权头：{}", name);
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break;
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}
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}
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if (!isAuthHeader) {
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builder.addHeader(name, request.getHeader(name));
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}
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}
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// ========== 核心步骤2：注入代理侧STS凭证 ==========
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// 1. 添加STS临时令牌（MinIO STS必须）
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builder.addHeader(X_AMZ_SECURITY_TOKEN, credentials.getSecurityToken());
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// 2. 添加AK/SK（MinIO签名需要，透传给MinIO）
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builder.addHeader("X-Amz-Access-Key-Id", credentials.getAccessKeyId());
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builder.addHeader("X-Amz-Secret-Access-Key", credentials.getAccessKeySecret());
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// 3. 强制HTTP/1.1（避免协议兼容问题）
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builder.addHeader("Connection", "keep-alive");
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builder.addHeader("Content-Type", request.getContentType() == null ? "application/octet-stream" : request.getContentType());
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// ========== 构建请求体（分大小文件） ==========
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RequestBody body = null;
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if (!"GET".equalsIgnoreCase(method) && !"HEAD".equalsIgnoreCase(method)) {
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InputStream inputStream = request.getInputStream();
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long contentLength = request.getContentLengthLong();
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// 小文件：预读取到内存
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if (contentLength > 0 && contentLength <= MAX_MEMORY_SIZE) {
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log.info("小文件上传：预读取到内存，大小:{:.2f}MB", contentLength / 1024.0 / 1024.0);
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byte[] content = readInputStreamToBytes(inputStream);
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MediaType mediaType = MediaType.parse(request.getContentType() == null ? "application/octet-stream" : request.getContentType());
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body = RequestBody.create(content, mediaType);
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}
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// 大文件：流式上传
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else {
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log.info("大文件/未知长度上传：使用流式传输");
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body = new RequestBody() {
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@Override
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public MediaType contentType() {
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return MediaType.parse(request.getContentType() == null ? "application/octet-stream" : request.getContentType());
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}
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@Override
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public long contentLength() {
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return contentLength;
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}
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@Override
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public void writeTo(BufferedSink sink) throws IOException {
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byte[] buffer = new byte[BUFFER_SIZE];
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int len;
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long totalWritten = 0;
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try (InputStream in = inputStream) {
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while ((len = in.read(buffer)) != -1) {
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sink.write(buffer, 0, len);
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totalWritten += len;
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if (totalWritten % (1024 * 1024 * 100) == 0) {
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sink.flush();
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log.info("已上传：{:.2f}MB", totalWritten / 1024.0 / 1024.0);
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}
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}
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sink.flush();
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}
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}
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};
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}
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}
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return builder.method(method, body).build();
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}
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/**
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* 读取InputStream到字节数组
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*/
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private byte[] readInputStreamToBytes(InputStream inputStream) throws IOException {
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try (ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
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byte[] buffer = new byte[BUFFER_SIZE];
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int len;
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while ((len = inputStream.read(buffer)) != -1) {
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bos.write(buffer, 0, len);
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}
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bos.flush();
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return bos.toByteArray();
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}
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}
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/**
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* 转发MinIO响应到客户端
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*/
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private void forwardResponse(Request request, HttpServletResponse response) throws IOException {
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try (Response okResponse = httpClient.newCall(request).execute()) {
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// 配置响应头
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response.setStatus(okResponse.code());
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response.setCharacterEncoding("UTF-8");
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String contentType = okResponse.header("Content-Type");
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if (contentType != null) {
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response.setContentType(contentType);
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}
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// 透传响应头（排除Transfer-Encoding）
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Headers headers = okResponse.headers();
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for (String name : headers.names()) {
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if (!name.equalsIgnoreCase(TRANSFER_ENCODING)) {
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response.setHeader(name, headers.get(name));
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}
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}
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// 透传响应体
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ResponseBody responseBody = okResponse.body();
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if (responseBody != null) {
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try (InputStream in = responseBody.byteStream()) {
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byte[] buffer = new byte[BUFFER_SIZE];
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int len;
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while ((len = in.read(buffer)) != -1) {
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response.getOutputStream().write(buffer, 0, len);
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}
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response.getOutputStream().flush();
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}
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}
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}
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}
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/**
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* 统一返回错误响应
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*/
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private void sendError(HttpServletResponse response, int code, String msg) {
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try {
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response.sendError(code, msg);
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} catch (IOException e) {
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log.error("发送错误响应失败", e);
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}
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}
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}
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