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我正在尝试使用 Google Drive File Picker 下载文件(基于此示例https://gist.github.com/Daniel15/5994054)。文件选择器可以正常工作,直到下载文件。它遇到 400 Bad-Request (lockedDomainCreationFailure) 错误。

这是代码:

function downloadFile(file, callback) {
  if (file.downloadUrl) {
    var accessToken = gapi.auth.getToken().access_token;
    var xhr = new XMLHttpRequest();
    xhr.open('GET', file.downloadUrl);
    xhr.setRequestHeader('Authorization', 'Bearer ' + accessToken);
    xhr.onload = function() {
      callback(xhr.responseText);
    };
    xhr.onerror = function() {
      callback(null);
    };
    xhr.send();
  } else {
    callback(null);
  }
}

这是错误消息:

{
 "error": {
  "errors": [
   {
    "domain": "global",
    "reason": "lockedDomainCreationFailure",
    "message": "The OAuth token was received in the query string, which this API forbids for response formats other than JSON or XML. If possible, try sending the OAuth token in the Authorization header instead."
   }
  ],
  "code": 400,
  "message": "The OAuth token was received in the query string, which this API forbids for response formats other than JSON or XML. If possible, try sending the OAuth token in the Authorization header instead."
 }
}

它告诉 OAuth 令牌是在查询字符串中给出的,正如我所见,这是不正确的。这是请求:

GET /drive/v2/files/{file-id}?key={app-key}&alt=media&source=downloadUrl HTTP/3
Host: content.googleapis.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0
Accept: */*
Accept-Language: en,de;q=0.7,en-US;q=0.3
Accept-Encoding: gzip, deflate, br
Authorization: Bearer {oauth-token}
Origin: http://localhost:8800
DNT: 1
Connection: keep-alive
Referer: http://localhost:8800/
TE: Trailers

由于我使用的是 Google API 提供的下载 url,并且授权是在请求标头中给出的,所以我不知道为什么会遇到这个错误。

我很欣赏任何想法。

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1 回答 1

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解决方案是将主机content.googleapis.com(从 Google API 作为下载 url 提供的内容)更改为www.googleapis.com. 感谢ziganotschka的提示!

所以正确的下载地址是https://www.googleapis.com/drive/v2/files/{file-id}?key={app-key}&alt=media&source=downloadUrl. 它必须包含“alt”和“source”查询参数,否则您只能获得文件元数据,而不是其内容。无需更改“接受”标题。

于 2021-06-18T09:05:54.877 回答