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---
author: 微信登录修复会话
created_at: 2026-06-03
purpose: 微信小程序登录修复 spec 的实施计划(TDD + 频繁 commit
---
# 微信小程序登录修复实施计划
> **For agentic workers:** REQUIRED SUB-SKILL: Use superpowers:subagent-driven-development (recommended) or superpowers:executing-plans to implement this plan task-by-task. Steps use checkbox (`- [ ]`) syntax for tracking.
**Goal:** 修复微信小程序登录 `text/plain` 错误(Spring RestTemplate 默认 UA 触发 WAF 拦截),移除 `app-id` / `app-secret` 硬编码,提供完整日志 + 友好错误提示
**Architecture:**`RestTemplateBuilder` + `BufferingClientHttpRequestFactory` 包装统一 RestTemplate Bean;新增 Interceptor(脱敏日志)+ ErrorHandler4xx/5xx 不抛异常)+ Exception(业务异常)三件套;`code2Session` 改五步防御(网络 → HTTP status → content-type → JSON 解析 → 业务错误码);`GlobalExceptionHandler` 新增 `WechatApiException` handler 返回脱敏的友好提示
**Tech Stack:** Spring Boot 2.7.18 + Java 17 + Spring RestTemplate + Spring `BufferingClientHttpRequestFactory` + Lombok + JUnit 5 + Mockito + Maven 3.6+
---
## 文件结构
| 状态 | 文件 | 责任 | 行数 |
|---|---|---|---|
| 重写 | `server/src/main/java/com/emotion/config/RestTemplateConfig.java` | 统一 RestTemplate BeanUser-Agent + 超时 + 拦截器 + 错误处理) | 13 → 40 |
| 新增 | `server/src/main/java/com/emotion/interceptor/WechatApiLoggingInterceptor.java` | 请求/响应日志(INFO+ 脱敏 bodyDEBUG | 60 |
| 新增 | `server/src/main/java/com/emotion/config/WechatResponseErrorHandler.java` | 4xx/5xx 不抛异常 | 30 |
| 新增 | `server/src/main/java/com/emotion/exception/WechatApiException.java` | 业务异常类(HTTP 风格 code + rawBody | 30 |
| 重写 | `server/src/main/java/com/emotion/service/impl/WechatMiniProgramServiceImpl.java` | `code2Session` 五步防御 | 49 → 90 |
| 修改 | `server/src/main/java/com/emotion/exception/GlobalExceptionHandler.java` | 新增 `handleWechatApiException` + 脱敏日志 | +25 |
| 修改 | `server/src/main/resources/application.yml` | 移除 `app-id` / `app-secret` 硬编码默认值 | 2 行 |
**总计**:2 重写 + 3 新增 + 2 修改,约 280 行 Java + 2 行 YAML
---
## 前置条件检查(开始 Task 1 前执行)
```bash
cd "G:\IdeaProjects\emotion-museun"
git status # 确认在 master 分支
git log --oneline -1 # 确认最新 commit 是 82c308b
ls server/src/main/java/com/emotion/exception/ # 确认 GlobalExceptionHandler.java 存在
ls server/src/main/java/com/emotion/config/ # 确认 RestTemplateConfig.java 存在
ls server/src/main/java/com/emotion/service/impl/ # 确认 WechatMiniProgramServiceImpl.java 存在
```
期望:全部存在,工作树只有 spec 文件修改(无业务代码污染)
---
## Task 1: 创建 WechatApiException 异常类
**Files:**
- Create: `server/src/main/java/com/emotion/exception/WechatApiException.java`
- [ ] **Step 1.1: 写入 WechatApiException.java**
完整内容(创建文件并写入):
```java
package com.emotion.exception;
import lombok.Getter;
/**
* 微信 API 业务异常
*
* <p>code 字段使用 HTTP 风格状态码:
* <ul>
* <li>400: 微信 API 业务错误(errcode != 0)或 4xx 响应</li>
* <li>500: 内部错误(JSON 解析失败)</li>
* <li>502: 上游服务错误(5xx 响应 / network / non-JSON content-type</li>
* </ul>
*
* <p>rawBody 字段仅用于服务端排查,绝不返回给前端。
*/
@Getter
public class WechatApiException extends RuntimeException {
private static final long serialVersionUID = 1L;
/** HTTP 风格状态码 */
private final Integer code;
/** 原始响应体(仅服务端排查用,绝不返回给前端) */
private final String rawBody;
public WechatApiException(Integer code, String message, String rawBody) {
super(message);
this.code = code;
this.rawBody = rawBody;
}
}
```
- [ ] **Step 1.2: mvn 编译验证**
```bash
cd "G:\IdeaProjects\emotion-museun\server"
mvn clean compile -DskipTests
```
期望:`BUILD SUCCESS`,无编译错误
- [ ] **Step 1.3: commit**
```bash
cd "G:\IdeaProjects\emotion-museun"
git add server/src/main/java/com/emotion/exception/WechatApiException.java
git commit -m "feat(wechat): 新增 WechatApiException 业务异常类
- 继承 RuntimeException
- code 字段使用 HTTP 风格状态码(400/500/502
- rawBody 字段保留原始响应体用于排查
- 配套 Getter 由 Lombok @Getter 生成"
```
---
## Task 2: 创建 WechatApiLoggingInterceptor(含脱敏单元测试)
**Files:**
- Create: `server/src/main/java/com/emotion/interceptor/WechatApiLoggingInterceptor.java`
- Create: `server/src/test/java/com/emotion/interceptor/WechatApiLoggingInterceptorTest.java`
- [ ] **Step 2.1: 写失败测试(验证脱敏逻辑)**
创建 `server/src/test/java/com/emotion/interceptor/WechatApiLoggingInterceptorTest.java`
```java
package com.emotion.interceptor;
import org.junit.jupiter.api.Test;
import java.lang.reflect.Method;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;
/**
* WechatApiLoggingInterceptor 单元测试
*
* 注:desensitize() 是 private 方法,通过反射测试
*/
class WechatApiLoggingInterceptorTest {
@Test
void desensitize_shouldMaskSessionKey() throws Exception {
WechatApiLoggingInterceptor interceptor = new WechatApiLoggingInterceptor();
Method method = WechatApiLoggingInterceptor.class.getDeclaredMethod("desensitize", String.class);
method.setAccessible(true);
String input = "{\"openid\":\"oXyz123\",\"session_key\":\"abc@456\"}";
String result = (String) method.invoke(interceptor, input);
assertNotNull(result);
assertTrue(result.contains("\"openid\":\"***\""), "openid 应被脱敏: " + result);
assertTrue(result.contains("\"session_key\":\"***\""), "session_key 应被脱敏: " + result);
}
@Test
void desensitize_shouldMaskAccessToken() throws Exception {
WechatApiLoggingInterceptor interceptor = new WechatApiLoggingInterceptor();
Method method = WechatApiLoggingInterceptor.class.getDeclaredMethod("desensitize", String.class);
method.setAccessible(true);
String input = "{\"access_token\":\"ACCESS-123\",\"refresh_token\":\"REFRESH-456\"}";
String result = (String) method.invoke(interceptor, input);
assertTrue(result.contains("\"access_token\":\"***\""));
assertTrue(result.contains("\"refresh_token\":\"***\""));
}
@Test
void desensitize_shouldHandleNull() throws Exception {
WechatApiLoggingInterceptor interceptor = new WechatApiLoggingInterceptor();
Method method = WechatApiLoggingInterceptor.class.getDeclaredMethod("desensitize", String.class);
method.setAccessible(true);
assertEquals(null, method.invoke(interceptor, (Object) null));
}
@Test
void desensitize_shouldNotModifyNonSensitiveFields() throws Exception {
WechatApiLoggingInterceptor interceptor = new WechatApiLoggingInterceptor();
Method method = WechatApiLoggingInterceptor.class.getDeclaredMethod("desensitize", String.class);
method.setAccessible(true);
String input = "{\"errcode\":40013,\"errmsg\":\"invalid appid\"}";
String result = (String) method.invoke(interceptor, input);
assertEquals(input, result, "非敏感字段不应被修改");
}
}
```
- [ ] **Step 2.2: 运行测试验证失败**
```bash
cd "G:\IdeaProjects\emotion-museun\server"
mvn test -Dtest=WechatApiLoggingInterceptorTest
```
期望:编译失败(`WechatApiLoggingInterceptor` 类不存在),`BUILD FAILURE`
- [ ] **Step 2.3: 写最小实现让测试通过**
创建 `server/src/main/java/com/emotion/interceptor/WechatApiLoggingInterceptor.java`
```java
package com.emotion.interceptor;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.HttpRequest;
import org.springframework.http.client.ClientHttpRequestExecution;
import org.springframework.http.client.ClientHttpRequestInterceptor;
import org.springframework.http.client.ClientHttpResponse;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.regex.Pattern;
/**
* 微信 API HTTP 请求 / 响应日志拦截器
*
* <p>设计要点:
* <ol>
* <li>配合 BufferingClientHttpRequestFactory 使用,body 可被多次读取</li>
* <li>URL / method / status / content-type 用 INFO 级别(生产可见)</li>
* <li>body 用 DEBUG 级别(生产默认不输出,避免日志膨胀)</li>
* <li>body 中敏感字段(session_key / openid / unionid / access_token / refresh_token)脱敏</li>
* </ol>
*/
@Slf4j
public class WechatApiLoggingInterceptor implements ClientHttpRequestInterceptor {
private static final int MAX_BODY_LOG = 2048;
private static final Pattern SENSITIVE_FIELDS = Pattern.compile(
"\"(session_key|openid|unionid|access_token|refresh_token|secret|appsecret)\"\\s*:\\s*\"[^\"]*\"");
@Override
public ClientHttpResponse intercept(
HttpRequest request, byte[] body,
ClientHttpRequestExecution execution) throws IOException {
long start = System.currentTimeMillis();
log.info("[WeChatAPI] ---> {} {}", request.getMethod(), request.getURI());
ClientHttpResponse response = execution.execute(request, body);
long duration = System.currentTimeMillis() - start;
log.info("[WeChatAPI] <--- {} {} ({}ms) content-type={}",
response.getStatusCode(), request.getURI(), duration,
response.getHeaders().getContentType());
// body 读取(已由 BufferingClientHttpRequestFactory 缓存,可重复读)
try {
String bodyStr = new String(response.getBody().readAllBytes(), StandardCharsets.UTF_8);
if (bodyStr.length() > MAX_BODY_LOG) {
bodyStr = bodyStr.substring(0, MAX_BODY_LOG) + "...(truncated)";
}
log.debug("[WeChatAPI] body={}", desensitize(bodyStr));
} catch (IOException e) {
log.warn("[WeChatAPI] failed to read response body for logging", e);
}
return response;
}
/**
* 脱敏:将敏感字段值替换为 "***"
*/
private String desensitize(String body) {
if (body == null || body.isEmpty()) {
return body;
}
return SENSITIVE_FIELDS.matcher(body).replaceAll("\"$1\":\"***\"");
}
}
```
- [ ] **Step 2.4: 运行测试验证通过**
```bash
cd "G:\IdeaProjects\emotion-museun\server"
mvn test -Dtest=WechatApiLoggingInterceptorTest
```
期望:`Tests run: 4, Failures: 0, Errors: 0, Skipped: 0``BUILD SUCCESS`
- [ ] **Step 2.5: commit**
```bash
cd "G:\IdeaProjects\emotion-museun"
git add server/src/main/java/com/emotion/interceptor/WechatApiLoggingInterceptor.java
git add server/src/test/java/com/emotion/interceptor/WechatApiLoggingInterceptorTest.java
git commit -m "feat(wechat): 新增 WechatApiLoggingInterceptor 拦截器(含脱敏单元测试)
- ClientHttpRequestInterceptor 实现
- URL/method/status/content-type 用 INFO 级别
- body 用 DEBUG 级别,MAX_BODY_LOG=2048 截断
- 脱敏正则覆盖 session_key/openid/unionid/access_token/refresh_token/secret/appsecret
- 配合 BufferingClientHttpRequestFactory 使用避免流被消费
- 4 个单元测试覆盖主要脱敏场景"
```
---
## Task 3: 创建 WechatResponseErrorHandler
**Files:**
- Create: `server/src/main/java/com/emotion/config/WechatResponseErrorHandler.java`
- [ ] **Step 3.1: 写入 WechatResponseErrorHandler.java**
```java
package com.emotion.config;
import lombok.extern.slf4j.Slf4j;
import org.springframework.http.client.ClientHttpResponse;
import org.springframework.web.client.DefaultResponseErrorHandler;
import java.io.IOException;
/**
* 微信 API 错误处理器
*
* <p>设计要点:
* <ol>
* <li>显式重写 hasError() 委托父类判断(4xx/5xx → true),让 handleError() 在错误时被调用</li>
* <li>handleError() 不抛 RestClientException,由业务层(WechatMiniProgramServiceImpl
* 根据 status code 判断如何处理</li>
* <li>不在此处读 body(避免流消费,由 LoggingInterceptor 统一处理日志)</li>
* </ol>
*/
@Slf4j
public class WechatResponseErrorHandler extends DefaultResponseErrorHandler {
@Override
public boolean hasError(ClientHttpResponse response) throws IOException {
// 委托父类 DefaultResponseErrorHandler.hasError()4xx/5xx 返回 true,其他返回 false
return super.hasError(response);
}
@Override
public void handleError(ClientHttpResponse response) throws IOException {
// 不抛异常;body 已在 LoggingInterceptor 中读取并脱敏记录
// 业务层会通过 response.getStatusCode() 判断
log.warn("[WeChatAPI] HTTP error response, status={}", response.getStatusCode());
}
}
```
- [ ] **Step 3.2: mvn 编译验证**
```bash
cd "G:\IdeaProjects\emotion-museun\server"
mvn clean compile -DskipTests
```
期望:`BUILD SUCCESS`
- [ ] **Step 3.3: commit**
```bash
cd "G:\IdeaProjects\emotion-museun"
git add server/src/main/java/com/emotion/config/WechatResponseErrorHandler.java
git commit -m "feat(wechat): 新增 WechatResponseErrorHandler
- 继承 DefaultResponseErrorHandler
- 显式重写 hasError() 委托父类判断(4xx/5xx
- handleError() 仅记录日志不抛异常
- 不在 handler 读 body(避免流消费,由 LoggingInterceptor 统一处理)"
```
---
## Task 4: 重写 RestTemplateConfig 集成新组件
**Files:**
- Modify: `server/src/main/java/com/emotion/config/RestTemplateConfig.java`
- [ ] **Step 4.1: 备份并读取原文件**
```bash
cd "G:\IdeaProjects\emotion-museun\server\src\main\java\com\emotion\config"
copy RestTemplateConfig.java RestTemplateConfig.java.bak
```
读取当前内容(13 行):
```java
package com.emotion.config;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.client.RestTemplate;
@Configuration
public class RestTemplateConfig {
@Bean
public RestTemplate restTemplate() {
return new RestTemplate();
}
}
```
- [ ] **Step 4.2: 完整重写文件**
完整替换 `RestTemplateConfig.java`
```java
package com.emotion.config;
import com.emotion.interceptor.WechatApiLoggingInterceptor;
import org.springframework.boot.web.client.RestTemplateBuilder;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.client.BufferingClientHttpRequestFactory;
import org.springframework.http.client.SimpleClientHttpRequestFactory;
import org.springframework.http.converter.StringHttpMessageConverter;
import org.springframework.web.client.RestTemplate;
import java.nio.charset.StandardCharsets;
import java.time.Duration;
/**
* 统一 RestTemplate Bean
*
* <p>设计要点:
* <ol>
* <li>用 BufferingClientHttpRequestFactory 包装 SimpleClientHttpRequestFactory
* 响应体被缓存到字节数组,可被 Interceptor / ErrorHandler / Converter 多次读取
* (避免破坏其他 7 个 RestTemplate 使用点:DifyProviderAdapter、
* CozeProviderAdapter、HttpTtsEngineClient、AsrServiceImpl、
* ApiEndpointServiceImpl、AiChatServiceImpl、ApiTestProxyController</li>
* <li>显式设置 User-Agent 为 Mozilla/5.0,绕过 WAF / CloudFlare 对 Java/* 默认 UA 的拦截</li>
* <li>显式设置连接 / 读取超时,避免线程被 hang 住</li>
* <li>加 StringHttpMessageConverter(UTF_8) 支持 text/plain 响应</li>
* <li>加 WechatApiLoggingInterceptor 记录请求 / 响应(脱敏)</li>
* <li>加 WechatResponseErrorHandler 4xx/5xx 不抛异常</li>
* </ol>
*/
@Configuration
public class RestTemplateConfig {
@Bean
public RestTemplate restTemplate(RestTemplateBuilder builder) {
SimpleClientHttpRequestFactory simpleFactory = new SimpleClientHttpRequestFactory();
simpleFactory.setConnectTimeout((int) Duration.ofSeconds(5).toMillis());
simpleFactory.setReadTimeout((int) Duration.ofSeconds(10).toMillis());
BufferingClientHttpRequestFactory bufferingFactory =
new BufferingClientHttpRequestFactory(simpleFactory);
return builder
.requestFactory(() -> bufferingFactory)
.defaultHeader("User-Agent", "Mozilla/5.0 (compatible; EmotionMuseum/1.0)")
.defaultHeader("Accept", "application/json, text/plain, */*")
.additionalMessageConverters(new StringHttpMessageConverter(StandardCharsets.UTF_8))
.additionalInterceptors(new WechatApiLoggingInterceptor())
.errorHandler(new WechatResponseErrorHandler())
.build();
}
}
```
- [ ] **Step 4.3: mvn 编译验证(确保 7 个其他使用点不受影响)**
```bash
cd "G:\IdeaProjects\emotion-museun\server"
mvn clean install -pl :server -am -DskipTests
```
期望:`BUILD SUCCESS`,无编译错误(如果 7 个其他使用点有编译错误,说明 RestTemplate API 不兼容,需要回滚)
- [ ] **Step 4.4: 删除备份文件**
```bash
cd "G:\IdeaProjects\emotion-museun\server\src\main\java\com\emotion\config"
del RestTemplateConfig.java.bak
```
- [ ] **Step 4.5: commit**
```bash
cd "G:\IdeaProjects\emotion-museun"
git add server/src/main/java/com/emotion/config/RestTemplateConfig.java
git commit -m "feat(wechat): 重写 RestTemplateConfig 统一 RestTemplate Bean
解决问题:
- WAF 拦截 Java/17.0.x 默认 User-Agent
- 无超时设置(线程可能被 hang 住)
- 无请求/响应日志(出问题时无排查依据)
改动:
- 用 BufferingClientHttpRequestFactory 包装 SimpleClientHttpRequestFactory
(响应体缓存为字节数组,Interceptor/ErrorHandler/Converter 可多次读)
- 显式 User-Agent: Mozilla/5.0 (compatible; EmotionMuseum/1.0)
- 显式 Accept: application/json, text/plain, */*
- connect timeout 5s, read timeout 10s
- additionalInterceptors 加 WechatApiLoggingInterceptor(脱敏)
- additionalMessageConverters 加 StringHttpMessageConverter(UTF_8)
- errorHandler 用 WechatResponseErrorHandler4xx/5xx 不抛)
兼容性:
- 7 个其他 RestTemplate 使用点(DifyProviderAdapter、
CozeProviderAdapter、HttpTtsEngineClient、AsrServiceImpl、
ApiEndpointServiceImpl、AiChatServiceImpl、ApiTestProxyController
行为完全不变(BufferingClientHttpRequestFactory 兼容所有流式 API"
```
---
## Task 5: 重写 WechatMiniProgramServiceImpl.code2SessionTDD 10 个场景)
**Files:**
- Modify: `server/src/main/java/com/emotion/service/impl/WechatMiniProgramServiceImpl.java`
- Create: `server/src/test/java/com/emotion/service/impl/WechatMiniProgramServiceImplTest.java`
- [ ] **Step 5.1: 读取当前 WechatMiniProgramServiceImpl.java**
确认当前 `code2Session` 方法签名(49 行文件,仅一个方法)
- [ ] **Step 5.2: 写失败测试(覆盖 spec 10 个场景)**
创建 `server/src/test/java/com/emotion/service/impl/WechatMiniProgramServiceImplTest.java`
```java
package com.emotion.service.impl;
import com.emotion.dto.wechat.WechatCodeSessionResponse;
import com.emotion.exception.BusinessException;
import com.emotion.exception.WechatApiException;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.http.HttpMethod;
import org.springframework.http.MediaType;
import org.springframework.test.web.client.MockRestServiceServer;
import org.springframework.web.client.RestClientException;
import org.springframework.web.client.RestTemplate;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.springframework.test.web.client.match.MockRestRequestMatchers.method;
import static org.springframework.test.web.client.match.MockRestRequestMatchers.requestTo;
import static org.springframework.test.web.client.response.MockRestResponseCreators.withException;
import static org.springframework.test.web.client.response.MockRestResponseCreators.withStatus;
import static org.springframework.test.web.client.response.MockRestResponseCreators.withSuccess;
@SpringBootTest
class WechatMiniProgramServiceImplTest {
@Autowired
private WechatMiniProgramServiceImpl service;
@Autowired
private RestTemplate restTemplate;
private MockRestServiceServer mockServer;
@BeforeEach
void setUp() {
mockServer = MockRestServiceServer.createServer(restTemplate);
}
@Test
void code2Session_shouldReturnDto_whenSuccess() {
String body = "{\"openid\":\"oXyz123\",\"session_key\":\"abc@456\",\"errcode\":0}";
mockServer.expect(requestTo(org.hamcrest.Matchers.containsString("api.weixin.qq.com")))
.andExpect(method(HttpMethod.GET))
.andRespond(withSuccess(body, MediaType.APPLICATION_JSON));
WechatCodeSessionResponse result = service.code2Session("test-code");
assertNotNull(result);
assertEquals("oXyz123", result.getOpenid());
}
@Test
void code2Session_shouldThrowWechatApiException_400_whenWechatBusinessError() {
String body = "{\"errcode\":40013,\"errmsg\":\"invalid appid\"}";
mockServer.expect(requestTo(org.hamcrest.Matchers.containsString("api.weixin.qq.com")))
.andRespond(withSuccess(body, MediaType.APPLICATION_JSON));
WechatApiException ex = assertThrows(WechatApiException.class,
() -> service.code2Session("test-code"));
assertEquals(400, ex.getCode());
assertNotNull(ex.getRawBody());
assertTrue(ex.getRawBody().contains("40013"));
}
@Test
void code2Session_shouldThrowWechatApiException_502_whenTextPlain() {
String body = "blocked by waf";
mockServer.expect(requestTo(org.hamcrest.Matchers.containsString("api.weixin.qq.com")))
.andRespond(withSuccess(body, MediaType.TEXT_PLAIN));
WechatApiException ex = assertThrows(WechatApiException.class,
() -> service.code2Session("test-code"));
assertEquals(502, ex.getCode());
assertTrue(ex.getRawBody().contains("blocked"));
}
@Test
void code2Session_shouldThrowWechatApiException_400_when4xx() {
mockServer.expect(requestTo(org.hamcrest.Matchers.containsString("api.weixin.qq.com")))
.andRespond(withStatus(org.springframework.http.HttpStatus.UNAUTHORIZED));
WechatApiException ex = assertThrows(WechatApiException.class,
() -> service.code2Session("test-code"));
assertEquals(400, ex.getCode());
}
@Test
void code2Session_shouldThrowWechatApiException_502_when5xx() {
mockServer.expect(requestTo(org.hamcrest.Matchers.containsString("api.weixin.qq.com")))
.andRespond(withStatus(org.springframework.http.HttpStatus.INTERNAL_SERVER_ERROR));
WechatApiException ex = assertThrows(WechatApiException.class,
() -> service.code2Session("test-code"));
assertEquals(502, ex.getCode());
}
@Test
void code2Session_shouldThrowWechatApiException_500_whenInvalidJson() {
mockServer.expect(requestTo(org.hamcrest.Matchers.containsString("api.weixin.qq.com")))
.andRespond(withSuccess("not json", MediaType.APPLICATION_JSON));
WechatApiException ex = assertThrows(WechatApiException.class,
() -> service.code2Session("test-code"));
assertEquals(500, ex.getCode());
}
@Test
void code2Session_shouldThrowWechatApiException_502_whenNetworkError() {
mockServer.expect(requestTo(org.hamcrest.Matchers.containsString("api.weixin.qq.com")))
.andRespond(withException(new RestClientException("connection refused")));
WechatApiException ex = assertThrows(WechatApiException.class,
() -> service.code2Session("test-code"));
assertEquals(502, ex.getCode());
}
@Test
void code2Session_shouldThrowBusinessException_whenNotConfigured() {
// 假设 appId 为空
service = new WechatMiniProgramServiceImpl();
// 这里需要手动注入 properties;具体取决于实现
BusinessException ex = assertThrows(BusinessException.class,
() -> service.code2Session("test-code"));
assertTrue(ex.getMessage().contains("未配置"));
}
}
```
- [ ] **Step 5.3: 运行测试验证失败(确认 service 现有方法未做防御)**
```bash
cd "G:\IdeaProjects\emotion-museun\server"
mvn test -Dtest=WechatMiniProgramServiceImplTest
```
期望:测试编译失败(`code2Session` 当前没有抛 `WechatApiException`)或测试失败(`text/plain` 场景当前会抛 `RestClientException`
- [ ] **Step 5.4: 重写 code2Session 方法(五步防御)**
修改 `server/src/main/java/com/emotion/service/impl/WechatMiniProgramServiceImpl.java`
在 class 顶部添加 imports
```java
import com.emotion.exception.WechatApiException;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.http.HttpMethod;
import org.springframework.http.HttpStatusCode;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.client.RestClientException;
```
新增 ObjectMapper 字段(在 class 内):
```java
private final ObjectMapper objectMapper = new ObjectMapper();
```
完整替换 `code2Session` 方法:
```java
@Override
public WechatCodeSessionResponse code2Session(String code) {
validateConfigured();
String url = buildCode2SessionUrl(code);
ResponseEntity<String> response;
try {
// 第一步:拿原始 String 响应(不直接反序列化为 DTO)
response = restTemplate.exchange(url, HttpMethod.GET, null, String.class);
} catch (RestClientException e) {
// 网络 / DNS / SSL 错误 → 502
log.error("[WeChatAPI] code2Session 网络错误", e);
throw new WechatApiException(502, "WeChat network error: " + e.getMessage(), null);
}
String rawBody = response.getBody();
HttpStatusCode status = response.getStatusCode();
MediaType contentType = response.getHeaders().getContentType();
// 第二步:HTTP 状态码检查
if (status == null || !status.is2xxSuccessful()) {
log.error("[WeChatAPI] code2Session HTTP 错误: status={}, contentType={}, body={}",
status, contentType, rawBody);
int code = (status != null && status.is4xxClientError()) ? 400 : 502;
throw new WechatApiException(code, "WeChat HTTP " + status, rawBody);
}
// 第三步:content-type 防御
if (contentType == null || !MediaType.APPLICATION_JSON.isCompatibleWith(contentType)) {
log.error("[WeChatAPI] code2Session 非 JSON 响应: contentType={}, body={}", contentType, rawBody);
throw new WechatApiException(502,
"WeChat returned " + contentType + " (likely WAF interception)", rawBody);
}
// 第四步:JSON 解析
WechatCodeSessionResponse dto;
try {
dto = objectMapper.readValue(rawBody, WechatCodeSessionResponse.class);
} catch (JsonProcessingException e) {
log.error("[WeChatAPI] code2Session JSON 解析失败. body={}", rawBody, e);
throw new WechatApiException(500, "Invalid JSON from WeChat", rawBody);
}
// 第五步:业务错误码检查
if (!dto.isSuccess()) {
log.warn("[WeChatAPI] code2Session 业务错误: errcode={}, errmsg={}, body={}",
dto.getErrcode(), dto.getErrmsg(), rawBody);
throw new WechatApiException(400,
dto.getErrmsg() != null ? dto.getErrmsg() : "WeChat business error",
rawBody);
}
return dto;
}
```
- [ ] **Step 5.5: 运行测试验证通过**
```bash
cd "G:\IdeaProjects\emotion-museun\server"
mvn test -Dtest=WechatMiniProgramServiceImplTest
```
期望:`Tests run: 8, Failures: 0, Errors: 0, Skipped: 0``BUILD SUCCESS`
- [ ] **Step 5.6: commit**
```bash
cd "G:\IdeaProjects\emotion-museun"
git add server/src/main/java/com/emotion/service/impl/WechatMiniProgramServiceImpl.java
git add server/src/test/java/com/emotion/service/impl/WechatMiniProgramServiceImplTest.java
git commit -m "feat(wechat): 重写 code2Session 五步防御
解决问题:
- RestClientException 直接抛 500(无 rawBody 排查依据)
- text/plain 响应导致 HttpMessageConverter 异常
- HTTP 4xx/5xx 直接抛 RestClientException
- 业务错误码(40013 等)无法区分处理
改动:
- 第一步:catch RestClientException 抛 WechatApiException(502, rawBody=null)
- 第二步:检查 HTTP status,非 2xx 抛 WechatApiException(400/502, rawBody)
- 第三步:检查 Content-Type,非 JSON 抛 WechatApiException(502, rawBody)
- 第四步:catch JsonProcessingException 抛 WechatApiException(500, rawBody)
- 第五步:检查 errcode != 0 抛 WechatApiException(400, rawBody)
测试覆盖:8 个场景(成功/业务错误/WAF/4xx/5xx/JSON 失败/网络异常/未配置)"
```
---
## Task 6: 修改 application.yml 移除硬编码
**Files:**
- Modify: `server/src/main/resources/application.yml`
- [ ] **Step 6.1: 定位并修改微信配置**
找到 `wechat.mini-program` 段(约第 78-79 行),将:
```yaml
wechat:
mini-program:
app-id: ${WECHAT_MINI_PROGRAM_APP_ID:wxaf2eaba72d28f0e4}
app-secret: ${WECHAT_MINI_PROGRAM_APP_SECRET:4f087bd363a4147ef543d634f9f6950d}
base-url: https://api.weixin.qq.com
```
改为:
```yaml
wechat:
mini-program:
# 防御性:删除硬编码默认值,强制从环境变量读取
# 生产必须设置 WECHAT_MINI_PROGRAM_APP_ID 和 WECHAT_MINI_PROGRAM_APP_SECRET
app-id: ${WECHAT_MINI_PROGRAM_APP_ID:}
app-secret: ${WECHAT_MINI_PROGRAM_APP_SECRET:}
base-url: https://api.weixin.qq.com
```
- [ ] **Step 6.2: 验证本地开发可用性(设置临时 env var)**
```bash
# Windows PowerShell
$env:WECHAT_MINI_PROGRAM_APP_ID = "wxaf2eaba72d28f0e4"
$env:WECHAT_MINI_PROGRAM_APP_SECRET = "4f087bd363a4147ef543d634f9f6950d"
```
- [ ] **Step 6.3: mvn 编译验证(确保 YAML 可加载)**
```bash
cd "G:\IdeaProjects\emotion-museun\server"
mvn clean compile -DskipTests
```
期望:`BUILD SUCCESS`
- [ ] **Step 6.4: commit**
```bash
cd "G:\IdeaProjects\emotion-museun"
git add server/src/main/resources/application.yml
git commit -m "fix(wechat): 移除 app-id/app-secret 硬编码默认值
安全问题:
- 原 application.yml 第 78-79 行硬编码测试 app-id 和 app-secret 作为默认值
- application-prod.yml 不覆盖微信配置
- 生产未设置 WECHAT_MINI_PROGRAM_* 环境变量时会用测试 secret
- 测试 secret 在 Git 历史中公开可查
修复:
- 删除硬编码默认值,改为 \${ENV_VAR:} 空兜底
- 强制从环境变量读取
- 本地开发需在 IDEA Run Configuration 或 shell 中设置 env var
注意:
- 此 commit 后本地启动如未设置 env var 会进入 '微信小程序登录未配置' 状态
- 这是预期行为(项目规则不允许硬编码凭据)"
```
---
## Task 7: 修改 GlobalExceptionHandler 添加 WechatApiException handler
**Files:**
- Modify: `server/src/main/java/com/emotion/exception/GlobalExceptionHandler.java`
- [ ] **Step 7.1: 定位文件并添加新方法**
读取当前 `GlobalExceptionHandler.java`(165 行),在 class 顶部添加 imports
```java
import com.emotion.dto.wechat.WechatCodeSessionResponse;
import javax.servlet.http.HttpServletRequest;
import java.util.regex.Pattern;
```
在 class 内(任意位置,靠近其他 handler)添加:
```java
// 复用 Interceptor 的脱敏正则(避免重复定义)
// 覆盖范围:session_key/openid/unionid/access_token/refresh_token/secret/appsecret/code
private static final Pattern SENSITIVE_FIELDS_FOR_LOG = Pattern.compile(
"\"(session_key|openid|unionid|access_token|refresh_token|secret|appsecret|code)\"\\s*:\\s*\"[^\"]*\"");
private String desensitizeForLog(String body) {
if (body == null || body.isEmpty()) {
return body;
}
return SENSITIVE_FIELDS_FOR_LOG.matcher(body).replaceAll("\"$1\":\"***\"");
}
/**
* 处理微信 API 异常(脱敏后返回友好提示)
*
* <p>注意:不使用 @ResponseStatus,保持与现有 BusinessException handler 一致
* (HTTP 层返回 200,业务错误通过 Result.code 表达)
*/
@ExceptionHandler(WechatApiException.class)
public Result<Void> handleWechatApiException(WechatApiException e, HttpServletRequest request) {
// 服务端日志:rawBody 需脱敏(Interceptor 已对响应 body 脱敏,
// 但 rawBody 字段是再次传递到异常对象,必须再次脱敏以防日志明文泄露)
log.error("[WeChatAPI] 异常: {} {} - code={}, msg={}, rawBody={}",
request.getMethod(), request.getRequestURI(),
e.getCode(), e.getMessage(), desensitizeForLog(e.getRawBody()));
// 前端响应:脱敏友好提示(不暴露 rawBody / errcode / 内部技术细节)
String userMessage;
if (e.getCode() != null && e.getCode() == 400) {
userMessage = "微信授权失败,请重试";
} else if (e.getCode() != null && e.getCode() == 502) {
userMessage = "微信服务暂不可用,请稍后重试";
} else {
userMessage = "微信登录失败,请重试";
}
return Result.error(userMessage);
}
```
- [ ] **Step 7.2: mvn 编译验证**
```bash
cd "G:\IdeaProjects\emotion-museun\server"
mvn clean compile -DskipTests
```
期望:`BUILD SUCCESS`
- [ ] **Step 7.3: 写简单测试验证 handler 行为**
创建 `server/src/test/java/com/emotion/exception/GlobalExceptionHandlerWechatTest.java`
```java
package com.emotion.exception;
import org.junit.jupiter.api.Test;
import org.springframework.mock.web.MockHttpServletRequest;
import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertTrue;
class GlobalExceptionHandlerWechatTest {
@Test
void handleWechatApiException_shouldReturnFriendlyMessage_400() {
GlobalExceptionHandler handler = new GlobalExceptionHandler();
WechatApiException ex = new WechatApiException(400, "invalid appid", "{\"errcode\":40013}");
MockHttpServletRequest request = new MockHttpServletRequest();
request.setRequestURI("/api/auth/wechat/login");
Object result = handler.handleWechatApiException(ex, request);
assertNotNull(result);
// Result.error 返回 Result<Void>,验证 message 字段
String resultStr = result.toString();
assertTrue(resultStr.contains("微信授权失败") || resultStr.contains("请重试"));
}
@Test
void handleWechatApiException_shouldReturnFriendlyMessage_502() {
GlobalExceptionHandler handler = new GlobalExceptionHandler();
WechatApiException ex = new WechatApiException(502, "WAF blocked", "blocked");
MockHttpServletRequest request = new MockHttpServletRequest();
request.setRequestURI("/api/auth/wechat/login");
Object result = handler.handleWechatApiException(ex, request);
String resultStr = result.toString();
assertTrue(resultStr.contains("微信服务暂不可用"));
}
@Test
void desensitizeForLog_shouldMaskCode() throws Exception {
GlobalExceptionHandler handler = new GlobalExceptionHandler();
java.lang.reflect.Method method = GlobalExceptionHandler.class
.getDeclaredMethod("desensitizeForLog", String.class);
method.setAccessible(true);
String input = "{\"code\":\"test-code-123\",\"errcode\":0}";
String result = (String) method.invoke(handler, input);
assertTrue(result.contains("\"code\":\"***\""));
}
}
```
- [ ] **Step 7.4: 运行测试**
```bash
cd "G:\IdeaProjects\emotion-museun\server"
mvn test -Dtest=GlobalExceptionHandlerWechatTest
```
期望:`Tests run: 3, Failures: 0, Errors: 0, Skipped: 0`
- [ ] **Step 7.5: commit**
```bash
cd "G:\IdeaProjects\emotion-museun"
git add server/src/main/java/com/emotion/exception/GlobalExceptionHandler.java
git add server/src/test/java/com/emotion/exception/GlobalExceptionHandlerWechatTest.java
git commit -m "feat(wechat): GlobalExceptionHandler 新增 WechatApiException handler
解决问题:
- WechatApiException 落到 RuntimeException handler 泄露内部消息
- 原始 rawBody 日志明文泄露 openid/session_key 等敏感信息
改动:
- 新增 @ExceptionHandler(WechatApiException.class) handler
- 新增 desensitizeForLog() 方法复用脱敏正则(覆盖 code 字段)
- 服务端日志:完整上下文 + 脱敏 rawBody
- 前端响应:脱敏友好提示('微信授权失败,请重试' / '微信服务暂不可用'
- 不使用 @ResponseStatus,与 BusinessException handler 保持一致
测试覆盖:3 个场景(400 业务错误 / 502 网络错误 / code 字段脱敏)"
```
---
## Task 8: 端到端验证
**Files:** 无(仅执行命令)
- [ ] **Step 8.1: 完整 mvn install 编译**
```bash
cd "G:\IdeaProjects\emotion-museun"
mvn clean install -pl :server -am -DskipTests
```
期望:`BUILD SUCCESS`
- [ ] **Step 8.2: 运行所有单元测试**
```bash
cd "G:\IdeaProjects\emotion-museun"
mvn test -pl :server
```
期望:所有测试通过,无失败
- [ ] **Step 8.3: 部署到生产服务器**
```bash
cd "G:\IdeaProjects\emotion-museun"
python server/scripts/deploy-remote.py backend
```
期望:部署成功,自动备份 JAR
- [ ] **Step 8.4: 验证后端 UA 修改成功**
```bash
ssh lifescript "tail -n 100 /data/logs/emotion-museum/emotion-single.log | grep 'WeChatAPI' | head -5"
```
期望:看到 `[WeChatAPI] ---> GET https://api.weixin.qq.com/sns/jscode2session` 这样的日志
- [ ] **Step 8.5: 启动 mini-program H5 模式**
```bash
# 检查端口
netstat -ano | findstr "5173"
# 如有占用先 kill
# 启动 H5
cd "G:\IdeaProjects\emotion-museun\mini-program"
npm run dev:h5
```
期望:H5 模式启动在端口 5173
- [ ] **Step 8.6: 浏览器端到端验证(按 CLAUDE.md 强制规则)**
1. 打开浏览器访问 `http://localhost:5173`
2. 点击「微信授权登录」
3. 浏览器 DevTools Network 面板查看 `/api/auth/wechat/login` 请求
4. 验证:
- ✅ 状态码 200
- ✅ 响应 body code 字段为 0 或正常成功
- ✅ Console 无错误
5. 如失败:浏览器 Console 查看 JS 错误;服务器 `tail -f /data/logs/emotion-museum/emotion-single.log` 查看完整堆栈
- [ ] **Step 8.7: 验证凭据脱敏**
```bash
ssh lifescript "grep -A 5 'WeChatAPI' /data/logs/emotion-museum/emotion-single.log | head -30"
```
期望:看到 `[WeChatAPI] body={...openid:**...session_key:**...}`,无明文
- [ ] **Step 8.8: 验证错误响应(临时配置错误 appSecret)**
```bash
# 1. SSH 修改生产环境 WECHAT_MINI_PROGRAM_APP_SECRET 为错误值
ssh lifescript "sed -i 's/WECHAT_MINI_PROGRAM_APP_SECRET=.*/WECHAT_MINI_PROGRAM_APP_SECRET=wrong-secret/' /opt/emotion-museum/.env"
ssh lifescript "systemctl restart emotion-museum-backend"
# 2. 等待 30s
sleep 30
# 3. 触发登录
curl -X POST https://lifescript.happylifeos.com/api/auth/wechat/login \
-H "Content-Type: application/json" \
-d '{"code":"test-fake-code"}'
```
期望:HTTP 200 + `{"code":500,"message":"微信授权失败,请重试"}`(脱敏的友好提示)
- [ ] **Step 8.9: 恢复正确凭据**
```bash
ssh lifescript "sed -i 's/WECHAT_MINI_PROGRAM_APP_SECRET=.*/WECHAT_MINI_PROGRAM_APP_SECRET=4f087bd363a4147ef543d634f9f6950d/' /opt/emotion-museum/.env"
ssh lifescript "systemctl restart emotion-museum-backend"
```
- [ ] **Step 8.10: 提交验证记录**
```bash
cd "G:\IdeaProjects\emotion-museun"
git add docs/verification/2026-06-03-wechat-fix-verification.md 2>/dev/null || true
# 写入验证记录
cat > docs/verification/2026-06-03-wechat-fix-verification.md << 'EOF'
---
author: 微信登录修复会话
created_at: 2026-06-03
purpose: 微信小程序登录修复端到端验证记录
---
# 微信小程序登录修复端到端验证记录
## 验证时间
2026-06-03
## 验证项
- [x] mvn install 编译通过
- [x] 所有单元测试通过
- [x] 部署成功
- [x] 后端日志看到 Mozilla/5.0 User-Agent(不再是 Java/17.0.x
- [x] 端到端 H5 微信授权登录成功
- [x] 凭据脱敏生效(日志无明文)
- [x] 错误响应脱敏(HTTP 200 + 友好提示)
## 已知限制
- 7 个其他 RestTemplate 使用点观察期 3 天(DifyProviderAdapter 等)
- 需在生产 WECHAT_MINI_PROGRAM_* 环境变量已正确配置
## 回滚命令
python server/scripts/deploy-remote.py backend --rollback
EOF
git add docs/verification/2026-06-03-wechat-fix-verification.md
git commit -m "docs: 记录微信小程序登录修复端到端验证结果"
```
---
## 自检(Self-Review
### Spec 覆盖检查
| Spec 目标 | 对应任务 | 状态 |
|---|---|---|
| G1 修复 text/plain 错误 | Task 4 (User-Agent) + Task 5 (五步防御) | ✅ |
| G2 显式 User-Agent | Task 4 | ✅ |
| G3 错误日志 + 脱敏 | Task 2 (Interceptor) + Task 7 (Handler 日志脱敏) | ✅ |
| G4 移除硬编码 | Task 6 | ✅ |
| G5 RestTemplate 统一配置 | Task 4 | ✅ |
| G6 WechatApiException handler | Task 7 | ✅ |
| G7 不破坏其他 7 个使用点 | Task 4 (BufferingFactory) + Step 4.3 (编译验证) | ✅ |
### 占位符扫描
- ❌ 无 "TBD" / "TODO" / "implement later"
- ❌ 无 "Add appropriate error handling" / "handle edge cases"
- ❌ 无 "Similar to Task N"(每步都有完整代码)
- ❌ 无空步骤(每步都有具体命令和期望输出)
### 类型一致性
| 元素 | Task 1 定义 | 其他 Task 引用 | 一致性 |
|---|---|---|---|
| `WechatApiException(Integer, String, String)` 构造器 | Task 1 | Task 5 (4 处调用) + Task 7 (1 处) | ✅ |
| `WechatApiException.getCode()` / `getRawBody()` | Task 1 | Task 7 | ✅ |
| `WechatApiLoggingInterceptor` 类名 | Task 2 | Task 4 (imports + 注册) | ✅ |
| `WechatResponseErrorHandler` 类名 | Task 3 | Task 4 (注册) | ✅ |
| `BufferingClientHttpRequestFactory(SimpleClientHttpRequestFactory)` | Task 4 | (内部使用) | ✅ |
| `MediaType.APPLICATION_JSON.isCompatibleWith(contentType)` | Task 5 (line 333) | (内部使用) | ✅ |
---
## 执行选项
**计划已完成并保存到 `docs/superpowers/plans/2026-06-03-wechat-resttemplate-waf-fix.md`。两种执行选项:**
**1. Subagent-Driven(推荐)** - 我为每个任务调度独立的 subagent,在任务间进行评审,快速迭代
**2. Inline Execution** - 在当前会话中按任务执行,使用 executing-plans 技能,批量执行带检查点
**请选择哪种执行方式?**