teachcloud-print-web/card/plugins/ajax.js

/* eslint-disable no-prototype-builtins */
// 新鉴权 to open
// import { getAuthorisation } from "./crypto";

// function getStorage(key) {
//   const content = window.sessionStorage.getItem(key);
//   return content ? JSON.parse(content).value : null;
// }

// function getAuthorHeader(uri, method) {
//   const user = getStorage("user");

//   const infos = getAuthorisation(
//     {
//       token: getStorage("token"),
//       account: user && user["id"],
//       uri,
//       method
//     },
//     "token"
//   );

//   return {
//     Authorization: infos.Authorization,
//     time: infos.timestamp,
//     deviceId: user && user["id"],
//     domain: window.location.origin,
//     platform: "print-web"
//   };
// }

function getError(action, option, xhr) {
  let msg;
  if (xhr.response) {
    msg = `${xhr.response.error || xhr.response}`;
  } else if (xhr.responseText) {
    msg = `${xhr.responseText}`;
  } else {
    msg = `fail to post ${action} ${xhr.status}`;
  }

  const err = new Error(msg);
  err.status = xhr.status;
  err.method = "post";
  err.url = action;
  return err;
}

function getBody(xhr) {
  const text = xhr.responseText || xhr.response;
  if (!text) {
    return text;
  }

  try {
    return JSON.parse(text);
  } catch (e) {
    return text;
  }
}

export default function upload(option) {
  if (typeof XMLHttpRequest === "undefined") {
    return;
  }

  const xhr = new XMLHttpRequest();
  const action = option.action;

  if (xhr.upload) {
    xhr.upload.onprogress = function progress(e) {
      if (e.total > 0) {
        e.percent = (e.loaded / e.total) * 100;
      }
      option.onProgress(e);
    };
  }

  const formData = new FormData();

  if (option.data) {
    Object.keys(option.data).forEach(key => {
      formData.append(key, option.data[key]);
    });
  }

  formData.append(option.filename, option.file, option.file.name);

  xhr.onerror = function error(e) {
    option.onError(e);
  };

  xhr.onload = function onload() {
    if (xhr.status < 200 || xhr.status >= 300) {
      return option.onError(getError(action, option, xhr));
    }

    option.onSuccess(getBody(xhr));
  };

  xhr.open("post", action, true);

  if (option.withCredentials && "withCredentials" in xhr) {
    xhr.withCredentials = true;
  }

  let headers = option.headers || {};
  // const authorHeader = getAuthorHeader(action, "post");

  // for (let item in authorHeader) {
  //   headers[item] = authorHeader[item];
  // }

  for (let item in headers) {
    if (headers.hasOwnProperty(item) && headers[item] !== null) {
      xhr.setRequestHeader(item, headers[item]);
    }
  }
  xhr.send(formData);
  return xhr;
}