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用於 gotoconnect / jive 虛擬傳真的谷歌應用程序腳本 - 未從 email 找到附件

[英]google apps script to gotoconnect / jive virtual fax - not finding attachment from email

我正在嘗試將 email 發送到 GAS MailApp 的虛擬傳真號碼。 email 隨附件一起發送,一切看起來都很完美,但由於某種原因它看不到附件。 我還直接從我的 gmail 發送了一個到相同的地址,它通過了。 看源碼,貌似最大的區別就是沒有X-Attachment-Id或者Content-ID。 不知道這是否有所作為。

常規 email

Content-Type: application/pdf; name="000106.pdf"
Content-Disposition: attachment; filename="000106.pdf"
Content-Transfer-Encoding: base64
X-Attachment-Id: f_kjyo04nj0
Content-ID: <f_kjyo04nj0>

來自 MailApp 的 Email

Content-Type: application/pdf; name="000106.pdf"
Content-Disposition: attachment; filename="000106.pdf"
Content-Transfer-Encoding: base64

代碼.gs

function doGet() {
  return HtmlService.createTemplateFromFile('forms').evaluate().setSandboxMode(HtmlService.SandboxMode.IFRAME)
  .setXFrameOptionsMode(HtmlService.XFrameOptionsMode.ALLOWALL);
}

function sendFax(data, file, faxto) {
  try {
    var contentType = data.substring(5, data.indexOf(';')),
      bytes = Utilities.base64Decode(data.substr(data.indexOf('base64,') + 7)),
      blob = Utilities.newBlob(bytes, contentType, file);
    
    MailApp.sendEmail(faxto + "@virtualfaxaddress.com", "faxaccesscode", "", {
                      attachments: blob
  });
    return 'Sent!';
  } catch (f) {
    return f.toString();
  }
}

forms.html

<!DOCTYPE html>
<html>
  <head>
    <base target="_top">
    <script src="https://code.jquery.com/jquery.min.js"></script>
  </head>
  <body>
    <body>
<div class="center">
<div class="fax-form">
<form method="post">

<label for="faxto">Fax to #:</label><br>
<input type="tel" name="faxto" id="faxto"><br><br>

<label for="upload">Choose a file to upload:</label>
<input type="file" name="upload" id="upload" accept=".pdf, .jpg, .tiff, .png, .bmp, .gif, .rtf, .txt, .doc, .docx, .xls, .xlsx, .ppt, .pptx"><br><br>

<input type="button" value="Submit" id="submit" onclick="submitForm()">
</form>
<p id="progress"></p>
</div>
</body>
  </body>
  <script>
    var file,
      reader = new FileReader();

    // Upload the file to Google Drive
    reader.onloadend = function (e) {
      google.script.run
        .withSuccessHandler(showMessage)
        .sendFax(
          e.target.result,
          file.name,
          $('input#faxto').val()
        );
    };

    // Read the file on form submit
    function submitForm() {
      file = $('#upload')[0].files[0];
      showMessage('Uploading file..');
      reader.readAsDataURL(file);
    }

    function showMessage(e) {
      $('#progress').html(e);
    }
</script>
</html>

有誰知道這些 ID 在這種情況下扮演的角色? 這可能是原因嗎? 如果是這樣,我將如何修復它以便 MailApp 發送帶有 ID 的附件?

您對我最好的線索的回復My best lead is the X-Attachment-ID and Content-ID, which I am guessing the Virtual Fax Machine is not seeing and therefore not recognizing the attachment. ,當您想通過手動添加X-Attachment-IdContent-ID發送 email 時,我認為 Gmail API 可以用作我的評論

在這種情況下,下面的示例腳本怎么樣?

示例腳本:

請按如下方式修改您的腳本。 在此修改中,附件文件與X-Attachment-IdContent-ID的值一起發送。 在這種情況下,請在 Google 高級服務中啟用 Gmail API。

function sendFax(data, file, faxto) {
  var contentType = data.substring(5, data.indexOf(';')),
  bytes = Utilities.base64Decode(data.substr(data.indexOf('base64,') + 7)),
  blob = Utilities.newBlob(bytes, contentType, file);
  // MailApp.sendEmail(faxto + "@virtualfaxaddress.com", "faxaccesscode", "", {attachments: blob});

  var toEmail = faxto + "@virtualfaxaddress.com";
  var subject = "faxaccesscode";
  var textBody = '';
  var attachmentFile = Utilities.base64Encode(blob.getBytes());
  var attachmentId = "sampleId";

  var requestBody = `MIME-Version: 1.0\r\n` +
    `To: ${toEmail}\r\n` +
    `From: ${fromEmail}\r\n` +
    `Subject: ${subject}\r\n` +
    `Content-Type: multipart/mixed; boundary=boundaryboundary01\r\n\r\n` +
    `--boundaryboundary01\r\n` +
    `Content-Type: multipart/alternative; boundary=boundaryboundary02\r\n\r\n` +
    `--boundaryboundary02\r\n` +
    `Content-type: text/plain; charset=UTF-8\r\n\r\n` +
    `${textBody}\r\n\r\n` +
    `--boundaryboundary02--\r\n` +
    `--boundaryboundary01\r\n` +
    `Content-Type: ${contentType}; name="${file}"\r\n` +
    `Content-Disposition: attachment; filename="${file}"\r\n` +
    `Content-Transfer-Encoding: base64\r\n` +
    `X-Attachment-Id: ${attachmentId}\r\n` +
    `Content-ID: <${attachmentId}>\r\n\r\n` +
    `${attachmentFile}\r\n` +
    `--boundaryboundary01--\r\n`;

  var res = Gmail.Users.Messages.send({raw: Utilities.base64EncodeWebSafe(requestBody)}, "me");
  console.log(res)
}

結果:

運行上述腳本時,在附件文件中獲得以下結果。

Content-Type: application/pdf; name="sample.pdf"
Content-Disposition: attachment; filename="sample.pdf"
Content-Transfer-Encoding: base64
X-Attachment-Id: sampleId
Content-ID: <sampleId>

筆記:

  • 如果您需要為要使用的 API 使用特定的X-Attachment-IdContent-ID ,請修改上述腳本。

參考:

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