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我正在尝试通过改造将图像上传到PushBullet API。

在上传请求之后，我触发了分段上传。

通过改造我得到这个错误：

{"error":{"code":"invalid_request","type":"invalid_request","message":"Invalid multipart body.","cat":"o(^・x・^)o"},"error_code":"invalid_request"}

该问题仅出现在我的 java 代码中，而不是 PAW HTTP 客户端。

# PAW generated Request
POST /upload-legacy/bcSWXnBjNIwpkej7CxfIHFz0ugXO6yhf HTTP/1.1
Content-Type: multipart/form-data; charset=utf-8; boundary=__X_PAW_BOUNDARY__
Host: upload.pushbullet.com
Connection: close
User-Agent: Paw/3.0.12 (Macintosh; OS X/10.11.6) GCDHTTPRequest
Content-Length: 34508

--__X_PAW_BOUNDARY__
Content-Disposition: form-data; name="file"; filename="cat.jpg"
Content-Type: image/jpeg

...

# Retrofit generated Request
POST https://upload.pushbullet.com/upload-legacy/ZZ4fLcqt2WFQmlbKTDlgcYXtB3KiCs3M http/1.1
Content-Type: multipart/form-data; charset=utf-8
Content-Length: 2012
Content-Disposition: form-data; name="file"; filename="1475501429665_motion_detected.jpg"
Content-Type: image/jpeg; charset=utf-8
Content-Length: 1772

...

我认为重要的区别Content-Length在于Part. 我发现了这个问题，但这是否意味着 PushBullet API 不符合 HTTP 规范？

任何帮助，将不胜感激。

4

1 回答 1

0

我在基于 JavaScript 的 Google Apps Script 中遇到了同样的问题，但我希望我的解决方案可以帮助其他遇到此问题的人。我在这里使用了 TANAIKE 构建多部分请求的方法：https ://gist.github.com/tanaikech/d595d30a592979bbf0c692d1193d260c

我成功上传 JPEG 的最终结果如下所示：


    // https://docs.pushbullet.com/v8/#upload-request
    // Assuming var picResponseJSON is your JSON results from successful upload-request
    var uploadJSON = {
      awsaccesskeyid: picResponseJSON.data.awsaccesskeyid,
      acl: picResponseJSON.data.acl,
      key: picResponseJSON.data.key,
      signature: picResponseJSON.data.signature,
      policy: picResponseJSON.data.policy,
      "content-type": picResponseJSON.data["content-type"],
    };

    // https://gist.github.com/tanaikech/d595d30a592979bbf0c692d1193d260c
    var boundary = "xxxxxxxxxx";
    var data = "";
    for (var i in uploadJSON) {
      data += "--" + boundary + "\r\n";
      data +=
        'Content-Disposition: form-data; name="' +
        i +
        '"; \r\n\r\n' +
        uploadJSON[i] +
        "\r\n";
    }
    data += "--" + boundary + "\r\n";
    data +=
      'Content-Disposition: form-data; name="file"; filename="' +
      fileTitle +
      '"\r\n';
    data += "Content-Type:" + mimeType + "\r\n\r\n";
    var payload = Utilities.newBlob(data)
      .getBytes()
      .concat(DriveApp.getFileById(fileID).getBlob().getBytes())
      .concat(Utilities.newBlob("\r\n--" + boundary + "--").getBytes());
    var options3 = {
      method: "post",
      contentType: "multipart/form-data; boundary=" + boundary,
      payload: payload,
      muteHttpExceptions: true,
    };

    // Send request
    var uploadResponse = UrlFetchApp.fetch(picResponseJSON.upload_url, options3);

    // Confirm it's successful
    if (uploadResponse.getResponseCode() == 204) {
      console.log("Success! File: " + picResponseJSON.file_url);
    }

请注意，负载中的 Blob 函数是 Google Apps 脚本的一部分，因此请根据您的语言进行相应修改。

于 2021-12-19T19:50:36.757 回答