Facebook 照片上传日期时间戳

经过一番挖掘，我找到了解决方案。@H_618_7@

Facebook 为您提供的存档为每个朋友提供了以下结构的文件夹：@H_618_7@

\friend_name_a1b2c3
   \photos
      12345678_123456788996_123124421.jpg
   \gifs
   \audio
    messages_1.json

messages_1.json 包含您与该朋友的所有消息，以下是消息的示例：@H_618_7@

{
    "sender_name": "Your Name","timestamp_ms": 1562647443588,"photos": [
      {
        "uri": "messages/inbox/friend_name_a1b2c3/photos/12345678_123456788996_123124421.jpg","creation_timestamp": 1562647443
      }
    ],"type": "Generic","is_unsent": false
},

因此，使用 glob 和 utimes 我想出了以下脚本：@H_618_7@

var glob = require("glob")
var Promise = require('bluebird');
var fs = Promise.promisifyAll(require("fs"));
var { utimes } = require("utimes");

const readJSONFiles = async () => {
  const messagesFiles = glob.sync(`**/message_*.json`)
  const promises = [];
  messagesFiles.forEach(mFile => {
    promises.push(fs.readFileAsync(mFile,'utf8'));
  })

  return Promise.all(promises);
}

readJSONFiles().then(result => {
  const map = {};
  result.forEach(data => {
    const messagesContents = JSON.parse(data);
    messagesContents.messages
      .filter(m => m.photos)
      .forEach(m => {
        m.photos.filter(p => {
          const splitted = p.uri.split("/")
          const messagePhotoFilename = splitted[splitted.length - 1];
          map[messagePhotoFilename] = m.timestamp_ms;
        })
      })
  })

  fs.writeFileSync("./map.json",JSON.Stringify(map))
}).then(() => {
  fs.readFileAsync("./map.json",'utf8').then(data => {
    const map = JSON.parse(data);
    glob("**/*.jpg",function (er,files) {
      files.forEach(file => {
        const [,photo] = file.split("/");

        utimes(file,{
          btime: map[photo],atime: map[photo],mtime: map[photo]
        });
      })
    })
  })
});

它创建一个 file-name:date-taken 映射，然后遍历所有 .jpg 文件并更改其元数据。它的边缘确实有点粗糙，但毕竟可以完成工作。@H_618_7@