Nodemailer图像附件没有数据

Question

我试图发送图像附件，它正在通过，但没有数据。大小为0kb。这是使用此代码：

var path = require('path'); 
var uploadDir = path.dirname(require.main.filename); 
// This actually produces a filepath that starts at my /Applications dir on my Mac, but ends in the right spot. 

var img = require("fs").readFileSync(uploadDir + '/uploads/' + params.newFileName); 
// file was upload was handled on the server by multer and renamed to something like this: fc5c5921bd0892f114cd7b6f0d39d9a3.gif 

attachments: [{ 
    filename: params.newFileName, 
    filePath: img 
}] 

我试着约一百名的变化根据我在网上搜集的主题，无论是我没有得到任何附件可言，上述的结果，或通用附件1。完事。我的newFileName param很好。该文件存在于指定的目录中。没有明确的错误。我肯定会喜欢一些指导:)

更新

这里是通往靠不住文件附件中的步骤，从客户机到服务器。

控制器方法：

$scope.Upload = function() 
{ 
    var file = $scope.fileModel; 
    var uploadUrl = '/upload'; 

    if (formValid) 
    { 
     // Upload it 
     fileUpload.uploadFileToUrl(file, uploadUrl); 
    } 
}; 

里面有上传功能（我无法找到一种方法，用表格的其余部分提交的文件，因此上传单独处理的服务，我是一个隐藏输入的值设置为multer改名的文件名，它与表单提交）：

uploadFileToUrl: function(file, uploadUrl) 
{ 
    var fd = new FormData(); 
    fd.append('file', file); 
    $http.post(uploadUrl, fd, 
    { 
     transformRequest: angular.identity, 
     headers: { 
      'Content-Type': undefined 
     } 
    }) 

    .success(function (res) 
    { 
     toastr.success(res.successMessage, 'Success'); 
     $('#file-name').val(res.fileName) 
     $('#file-name').trigger('input'); 
    }) 

    .error(function() 
    { 
     toastr.error(res.errorMessage, 'Error'); 
    }); 
} 

表单数据是通过两种方法在服务器上进行处理，其中第一店会话中的参数，然后将用户发送到PayPal以完成p ayment，并且其中第二个访问这些会话变量，并且构造并发送电子邮件：

// NOTE: leaving out the paypal code as it is not relevant 
CompletePayment: function(req, res) 
{ 
    // Get the request params 
    var params = req.body; 

    // Store request params in session variables so we can send 
    // confirmation emails once payment has been completed 
    req.session.requestFormData = { 
     mediaType: params.mediaType, 
     name: params.name, 
     email: params.email, 
     dedication: params.dedication, 
     notes: params.notes, 
     socialMedia: params.socialMedia, 
     newFileName: params.newFileName 
    } 
} 

最后，构建并发送该消息的方法 - 2实际上，主要消息，并且向用户确认（很明显，占位符代替敏感信息）：

SendRequestEmail: function(req, res) 
{ 
    var params = req.session.requestFormData; 
    // I split the nodemailer SMTP transport off into a service 
    var transport = EmailService.SetupTransport(); 

    if (params) 
    { 
     var mailOptions = { 
      to: 'test@test.com', 
      from: 'FromName <'+params.email+'>', 
      subject: 'Request from ' + params.name, 
      text: 'Someone has requested something! Get back to ' + params.name + ' right away!' + 
        '\n\nType: ' + params.mediaType + 
        '\nName: ' + params.name + 
        '\nEmail: ' + params.email + 
        '\nDedication: ' + params.dedication + 
        '\nNotes: ' + params.notes + 
        '\nCan We Post It: ' + params.socialMedia, 
      attachments: [{ 
       filename: params.newFileName, 
       // NOTE: I changed the path here to one that should work in production - deployed and got the same result 
       path: '/server/uploads/' 
      }] 
     }; 

     var confirmationMailOptions = { 
      // A much simpler version of above - no attachments, just text 
     } 

     // Send the request email 
     transport.sendMail(mailOptions, function(error, info) 
     { 
      if(error){ 
       res.send({ 
        nodemailerError: error, 
        errorMessage: 'Oops! Either the email address you entered doesn\'t exist, or the interwebs are misbehaving. Try again!' 
       }); 
      } 
      else 
      { 
       // If booking request was successful, send the confirmation to the user 
       transport.sendMail(confirmationMailOptions, function(error, info) 
       { 
        if (error) { 
         console.log(error); 
        } else { 
         res.send({ 
          successMessage: 'Confirmation message sent to: ' + params.email 
         }); 

         req.session.destroy(); 
        } 
       }); 
      } 
     }); 
    } 
    else 
    { 
     res.send({paramStatus: 'destroyed'}); 
    } 
} 

Answer 1

我知道我必须到图像中的正确的道路，并@hassansin指着我讲讲关于缓冲正确的方向（以及andris9著名nodemailer提到content: Buffer我发布在GitHub页面上的这个问题的版本。这使我这个工作版本：

var path = require('path'); 
var uploadDir = path.dirname(require.main.filename); 
var img = require("fs").readFileSync(uploadDir + '/uploads/' + params.newFileName); 

attachments: [{ 
    filename: params.newFileName, 
    content: new Buffer(img) 
}]