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fix: fix hono.file response duplicated content-type header

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yangshangbo
2025-07-08 11:51:09 +08:00
parent 50c055b607
commit 684866baa6
7 changed files with 139 additions and 18 deletions
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public/img1.jpg
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public/index.html
+57 -4
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@@ -327,7 +327,7 @@
<button class="test-button" onclick="testFile('/file/test.txt')">基本文件服务</button>
<button class="test-button" onclick="testFile('/file-cached/test.txt')">缓存文件服务</button>
<button class="test-button" onclick="testFile('/download/downloadable.txt')">文件下载</button>
<button class="test-button" onclick="testFile('/image/style.css')">图片文件服务</button>
<button class="test-button" onclick="testFile('/image/img1.jpg')">图片文件服务</button>
<button class="test-button" onclick="testFile('/safe-file/test.txt')">安全文件服务</button>
<div id="file-result" class="result" style="display: none;"></div>
</div>
@@ -612,11 +612,64 @@ app.listen(':8080')
}
const response = await fetch(url.toString());
const data = await response.text();
const responseTime = Date.now() - startTime;
resultDiv.className = 'result';
resultDiv.textContent = `✅ 成功 (${responseTime}ms)\n状态码: ${response.status}\n请求URL: ${url.toString()}\n文件大小: ${data.length} 字符\n内容预览:\n${data.substring(0, 200)}${data.length > 200 ? '...' : ''}`;
// 获取所有响应头信息用于调试
const headers = {};
response.headers.forEach((value, key) => {
headers[key] = value;
});
// 检查是否是图片文件 - 优先检查文件扩展名
const urlPath = url.pathname.toLowerCase();
const isImageByExtension = urlPath.endsWith('.jpg') || urlPath.endsWith('.jpeg') ||
urlPath.endsWith('.png') || urlPath.endsWith('.gif') ||
urlPath.endsWith('.webp') || urlPath.endsWith('.svg');
// 也检查 content-type
const contentType = response.headers.get('content-type') || '';
const isImageByType = contentType.startsWith('image/');
const isImage = isImageByExtension || isImageByType;
if (isImage) {
// 对于图片文件，显示图片预览
const blob = await response.blob();
const imageUrl = URL.createObjectURL(blob);
resultDiv.className = 'result';
resultDiv.innerHTML = `
✅ 成功 (${responseTime}ms)<br>
状态码: ${response.status}<br>
请求URL: ${url.toString()}<br>
文件类型: ${contentType}<br>
文件大小: ${(blob.size / 1024).toFixed(2)} KB<br>
检测方式: ${isImageByExtension ? '文件扩展名' : 'Content-Type'}<br>
<br>
<strong>响应头信息:</strong><br>
<pre style="font-size: 0.8em; background: #f5f5f5; padding: 10px; border-radius: 4px; overflow-x: auto;">${JSON.stringify(headers, null, 2)}</pre>
<br>
<strong>图片预览:</strong><br>
<img src="${imageUrl}" style="max-width: 100%; max-height: 200px; border: 1px solid #ddd; border-radius: 4px; margin-top: 10px;" alt="图片预览">
`;
} else {
// 对于非图片文件，显示文本内容
const data = await response.text();
resultDiv.className = 'result';
resultDiv.innerHTML = `
✅ 成功 (${responseTime}ms)<br>
状态码: ${response.status}<br>
请求URL: ${url.toString()}<br>
文件类型: ${contentType}<br>
文件大小: ${data.length} 字符<br>
<br>
<strong>响应头信息:</strong><br>
<pre style="font-size: 0.8em; background: #f5f5f5; padding: 10px; border-radius: 4px; overflow-x: auto;">${JSON.stringify(headers, null, 2)}</pre>
<br>
<strong>内容预览:</strong><br>
<pre style="font-size: 0.9em; background: #f9f9f9; padding: 10px; border-radius: 4px; overflow-x: auto;">${data.substring(0, 200)}${data.length > 200 ? '...' : ''}</pre>
`;
}
updateStats(true, responseTime);
} catch (error) {