带有小部件的Cloudinary签名上传

Question

文档非常令人沮丧。

我正在使用上传小部件来尝试允许用户为自己的个人资料上传多张图片。由于存在滥用的可能性，我无法使用未签名的上传。

我宁愿通过上载小部件而不是通过服务器来上载文件，因为看起来应该是如此简单

我拼凑了我认为应该起作用的内容，但仍然在说：Upload preset must be whitelisted for unsigned uploads

服务器：

// grab a current UNIX timestamp
const millisecondsToSeconds = 1000;
const timestamp = Math.round(Date.now() / millisecondsToSeconds);
// generate the signature using the current timestmap and any other desired Cloudinary params
const signature = cloudinaryV2.utils.api_sign_request({ timestamp }, CLOUDINARY_SECRET_KEY);
// craft a signature payload to send to the client (timestamp and signature required)
return signature;

也尝试过

return {
  signature,
  timestamp,
};

也尝试过

const signature = cloudinaryV2.utils.api_sign_request(
      data.params_to_sign,
      CLOUDINARY_SECRET_KEY,
    );

客户：

const generateSignature = async (callback: Function, params_to_sign: object): Promise<void> => {
  try {
    const signature = await generateSignatureCF({ slug: 'xxxx' }); 
  // also tried { slug: 'xxxx', params_to_sign }
    callback(signature);
  } catch (err) {
    console.log(err);
  }
};
cloudinary.openUploadWidget(
  {
    cloudName: 'xxx',
    uploadPreset: 'xxxx',
    sources: ['local', 'url', 'facebook', 'dropbox', 'google_photos'],
    folder: 'xxxx',
    apiKey: ENV.CLOUDINARY_PUBLIC_KEY,
    uploadSignature: generateSignature,
  },
  function(error, result) {
    console.log(error);
  },
);

Answer 1

男人。我讨厌我的生活。我终于弄明白了。从字面上看，我美化了上载小部件js，以了解该函数的返回应该是字符串而不是对象，即使文档使它看起来不是这样。

这里是如何使用Firebase Cloud Function实施签名的上传

import * as functions from 'firebase-functions';
import cloudinary from 'cloudinary';
const CLOUDINARY_SECRET_KEY = functions.config().cloudinary.key;
const cloudinaryV2 = cloudinary.v2;
module.exports.main = functions.https.onCall(async (data, context: CallableContext) => {
  // Checking that the user is authenticated.
  if (!context.auth) {
    // Throwing an HttpsError so that the client gets the error details.
    throw new functions.https.HttpsError(
      'failed-precondition',
      'The function must be called while authenticated.',
    );
  }
  try {
    return cloudinaryV2.utils.api_sign_request(data.params_to_sign, CLOUDINARY_SECRET_KEY);
  } catch (error) {
    throw new functions.https.HttpsError('failed-precondition', error.message);
  }
});


// CLIENT
const uploadWidget = () => {
  const generateSignature = async (callback: Function, params_to_sign: object): Promise<void> => {
    try {
      const signature = await generateImageUploadSignatureCF({ params_to_sign });
      callback(signature.data);
    } catch (err) {
      console.log(err);
    }
  };

  cloudinary.openUploadWidget(
    {
      cloudName: 'xxxxxx',
      uploadSignature: generateSignature,
      apiKey: ENV.CLOUDINARY_PUBLIC_KEY,
    },
    function(error, result) {
      console.log(error);
    },
  );
};