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🐛 #3348 【公共问题】修复无法获取正确文件名的问题

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Binary Wang
2024-08-20 11:39:54 +08:00
parent b6a8721bd1
commit 748c19f108
2 changed files with 55 additions and 10 deletions
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39
weixin-java-common/src/main/java/me/chanjar/weixin/common/util/http/HttpResponseProxy.java
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@@ -6,6 +6,12 @@ import okhttp3.Response;
import org.apache.http.Header;
import org.apache.http.client.methods.CloseableHttpResponse;
import java.io.UnsupportedEncodingException;
import java.net.URLDecoder;
import java.nio.charset.StandardCharsets;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* <pre>
* 三种http框架的response代理类，方便提取公共方法
@@ -56,29 +62,42 @@ public class HttpResponseProxy {
throw new WxErrorException("无法获取到文件名，Content-disposition为空");
}
return this.extractFileNameFromContentString(contentDispositionHeader[0].getValue());
return extractFileNameFromContentString(contentDispositionHeader[0].getValue());
}
private String getFileName(HttpResponse response) throws WxErrorException {
String content = response.header("Content-disposition");
return this.extractFileNameFromContentString(content);
return extractFileNameFromContentString(content);
}
private String getFileName(Response response) throws WxErrorException {
String content = response.header("Content-disposition");
return this.extractFileNameFromContentString(content);
return extractFileNameFromContentString(content);
}
private String extractFileNameFromContentString(String content) throws WxErrorException {
if (content == null || content.length() == 0) {
public static String extractFileNameFromContentString(String content) throws WxErrorException {
if (content == null || content.isEmpty()) {
throw new WxErrorException("无法获取到文件名，content为空");
}
int startIndex = content.indexOf("filename=\"");
if (startIndex != -1) {
startIndex += "filename=\"".length();
int endIndex = content.indexOf('"', startIndex);
return content.substring(startIndex, endIndex);
// 查找filename*=utf-8''开头的部分
Pattern pattern = Pattern.compile("filename\\*=utf-8''(.*?)($|;|\\s|,)");
Matcher matcher = pattern.matcher(content);
if (matcher.find()) {
String encodedFileName = matcher.group(1);
// 解码URL编码的文件名
try {
return URLDecoder.decode(encodedFileName, StandardCharsets.UTF_8.name());
} catch (UnsupportedEncodingException e) {
throw new RuntimeException(e);
}
}
// 查找普通filename="..."部分
pattern = Pattern.compile("filename=\"(.*?)\"");
matcher = pattern.matcher(content);
if (matcher.find()) {
return new String(matcher.group(1).getBytes(StandardCharsets.ISO_8859_1), StandardCharsets.UTF_8);
}
throw new WxErrorException("无法获取到文件名，header信息有问题");