t-comm/es/publish/post-file.mjs

专业、稳定、纯粹的工具库

import * as fs from 'fs';
import * as http from 'http';
import * as path from 'path';

function postFile(fileDataInfo, fileKeyValue, options) {
  return new Promise(function (resolve, reject) {
    if (!options) {
      console.log('[publish] failed. 需要 options');
      return;
    }
    var req = http.request(options, function (res) {
      // res.setEncoding("utf8");
      res.on('data', function (chunk) {
        var result = {};
        try {
          result = JSON.parse(chunk);
        } catch (_a) {}
        console.log('[postFile] result: ', result);
        resolve(result);
      });
    });
    req.on('error', function (e) {
      console.log("[postFile] problem with request: ".concat(e.message));
      reject(e);
    });
    var boundaryKey = Math.random().toString(16);
    var endData = "\r\n----".concat(boundaryKey, "--");
    var dataLength = 0;
    var dataArr = [];
    for (var _i = 0, fileDataInfo_1 = fileDataInfo; _i < fileDataInfo_1.length; _i++) {
      var item = fileDataInfo_1[_i];
      var dataInfo = "\r\n----".concat(boundaryKey, "\r\n") + "Content-Disposition: form-data; name=\"".concat(item.urlKey, "\"\r\n\r\n").concat(item.urlValue);
      var dataBinary = Buffer.from(dataInfo, 'utf-8');
      dataLength += dataBinary.length;
      dataArr.push({
        dataInfo: dataInfo
      });
    }
    var files = [];
    for (var _a = 0, fileKeyValue_1 = fileKeyValue; _a < fileKeyValue_1.length; _a++) {
      var item = fileKeyValue_1[_a];
      var content = "\r\n----".concat(boundaryKey, "\r\n") + 'Content-Type: application/octet-stream\r\n' + "Content-Disposition: form-data; name=\"".concat(item.urlKey, "\"; filename=\"").concat(path.basename(item.urlValue), "\"\r\n") + 'Content-Transfer-Encoding: binary\r\n\r\n';
      // 当编码为ascii时，中文会乱码。
      var contentBinary = Buffer.from(content, 'utf-8');
      files.push({
        contentBinary: contentBinary,
        filePath: item.urlValue
      });
    }
    var contentLength = 0;
    for (var _b = 0, files_1 = files; _b < files_1.length; _b++) {
      var item = files_1[_b];
      var filePath = item.filePath;
      if (fs.existsSync(filePath)) {
        var stat = fs.statSync(filePath);
        contentLength += stat.size;
      } else {
        contentLength += Buffer.from('\r\n', 'utf-8').length;
      }
      contentLength += item.contentBinary.length;
    }
    req.setHeader('Content-Type', "multipart/form-data; boundary=--".concat(boundaryKey));
    req.setHeader('Content-Length', dataLength + contentLength + Buffer.byteLength(endData));
    // 将参数发出
    for (var _c = 0, dataArr_1 = dataArr; _c < dataArr_1.length; _c++) {
      var item = dataArr_1[_c];
      req.write(item.dataInfo);
    }
    var fileIndex = 0;
    var _doOneFile = function doOneFile() {
      req.write(files[fileIndex].contentBinary);
      var currentFilePath = files[fileIndex].filePath;
      if (fs.existsSync(currentFilePath)) {
        // @ts-ignore
        var fileStream = fs.createReadStream(currentFilePath, {
          bufferSize: 4 * 1024
        });
        fileStream.pipe(req, {
          end: false
        });
        fileStream.on('end', function () {
          fileIndex += 1;
          if (fileIndex === files.length) {
            req.end(endData);
          } else {
            _doOneFile();
          }
        });
      } else {
        req.write('\r\n');
        fileIndex += 1;
        if (fileIndex === files.length) {
          req.end(endData);
        } else {
          _doOneFile();
        }
      }
    };
    if (fileIndex === files.length) {
      req.end(endData);
    } else {
      _doOneFile();
    }
  });
}

export { postFile };