Django Rest - FileUploadView -意外数据被添加到上传的文件中

Question

下面是我的FileUploadView类，用于处理上传文件的POST请求。我期望的文件是XML，在其中我使用fileHandler()中的ElementTree来解析它。但是，当使用Postman通过使用('form-data')发送文件时，我意识到它正在将某种类型的头附加到我上传的文件上，这反过来会导致树解析()出现语法错误，因为它读取的内容不是XML格式。

我尝试使用HTTPie发送文件，没有任何问题，XML Parser正确地解析了它，并将数据输入到预期的对象中。

然后我试着用Django做一些TestCases，并试着测试文件上传。这导致解析器由于具有再次附加到文件的头部而再次具有语法错误。

class UploadTest(APITestCase):
    def test_file_upload(self):
        c = Client()
        with open("/Users/Ren/Desktop/Capstone/Backend/projectB/VMA/testing/Test.xml") as fp:
            c.post('/upload/TestXML.xml', {'filename' : 'Test.xml', 'attachment': fp})

我的问题是:是什么导致这个头弹出/被添加到上传的文件中。我猜这与我如何通过邮递员和与HTTPie不同的Django TestCase发送post请求有关

view.py

class FileUploadView(APIView):
    parser_classes = (FileUploadParser,)


    def post(self, request, filename, format=None):
        print(request.FILES)
        file_obj = request.FILES['file']
        fileHandler(file_obj)
        return Response(status=204)

FileReader.py

def fileHandler(file):
    filepath = file.temporary_file_path()
    print(file.read())

    tree = ET.parse(filepath)
    root = tree.getroot()

调用file.read()时的XML文件和输出

XML I need to read in (Expected Output):
<site host="192.168.212.4" name="http://192.168.212.4" port="80" ssl="false"><alerts><alertitem>\n  <pluginid>10021</pluginid>\n  <alert>X-Content-Type-Options header missing</alert>\n  <riskcode>1</riskcode>\n  <reliability>2</reliability>\n  <riskdesc>Low (Warning)</riskdesc>\n  <desc>The Anti-MIME-Sniffing header X-Content-Type-Options was not set to \'nosniff\'.\n\tThis allows older versions of Internet Explorer and Chrome to perform MIME-sniffing on the response body, potentially causing the response body to be interpreted and displayed as a content type other than the declared content type.\n\tCurrent (early 2014) and legacy versions of Firefox will use the declared content type (if one is set), rather than performing MIME-sniffing.\n\t</desc>\n  <uri>http://192.168.212.4/</uri>\n  <param/>\n  <attack/>\n  <otherinfo/>\n  <solution>Ensure that the application/web server sets the Content-Type header appropriately, and that it sets the X-Content-Type-Options header to \'nosniff\' for all web pages.\n\tIf possible, ensure that the end user uses a standards-compliant and modern web browser that does not perform MIME-sniffing at all, or that can be directed by the web application/web server to not perform MIME-sniffing.\n\t</solution>\n  <reference>\n\t</reference>\n</alertitem>


The Output when running request.FILES['file'].read() --- Current Output
b'----------------------------507481440966899800347275\r\nContent-Disposition: form-data; name=""; filename="sampleXML.xml"\r\nContent-Type: application/xml\r\n\r\n<site host="192.168.212.4" name="http://192.168.212.4" port="80" ssl="false"><alerts><alertitem>\n  <pluginid>10021</pluginid>\n  <alert>X-Content-Type-Options header missing</alert>\n  <riskcode>1</riskcode>\n  <reliability>2</reliability>\n  <riskdesc>Low (Warning)</riskdesc>\n  <desc>The Anti-MIME-Sniffing header X-Content-Type-Options was not set to \'nosniff\'.\n\tThis allows older versions of Internet Explorer and Chrome to perform MIME-sniffing on the response body, potentially causing the response body to be interpreted and displayed as a content type other than the declared content type.\n\tCurrent (early 2014) and legacy versions of Firefox will use the declared content type (if one is set), rather than performing MIME-sniffing.\n\t</desc>\n  <uri>http://192.168.212.4/</uri>\n  <param/>\n  <attack/>\n  <otherinfo/>\n  <solution>Ensure that the application/web server sets the Content-Type header appropriately, and that it sets the X-Content-Type-Options header to \'nosniff\' for all web pages.\n\tIf possible, ensure that the end user uses a standards-compliant and modern web browser that does not perform MIME-sniffing at all, or that can be directed by the web application/web server to not perform MIME-sniffing.\n\t</solution>\n  <reference>\n\t</reference>\n</alertitem>\n\n  \r\n----------------------------507481440966899800347275--\r\n'

包含不必要的:b‘--507481440966899800347275\r\nContent-Disposition: form-data；name=""；filename=“sampleXML.xml”\r\n内容类型:应用程序/xml\r\n\r\n

Answer 1

我尝试了一下代码，并对testCase做了一点小小的修改：

class UploadTest(APITestCase):
    def test_file_upload(self):
        c = Client()
        with open("/Users/Ren/Desktop/Capstone/Backend/projectB/VMA/testing/Test.xml") as fp:
            c.post('/upload/TestXML.xml', {'filename' : 'Test.xml', 'attachment': fp})

我将{'filename' : 'Test.xml', 'attachment': fp}更改为{'filename' : b'Test.xml', 'attachment': fp}

我记得在什么地方读过，不幸的是我不记得在哪了，但是...将文件转换为“字节”修复了它...