从Flash POST请求中读取RAW数据（图像） [英] Reading RAW data from a Flash POST Request ( images )

问题描述

我基本上正在与第三方 API flash文件进行交互，以便将HTTP POST请求发送到我的服务器。

我知道我在正确的道路上，因为它需要一个 crossdomain.xml 文件，和之前我添加的部分什么都没有在POST变量显示，但是因为我添加该文件有4变量设置，这些POST变量由应用程序发送给我关于该文件的基本信息..但我其实需要读取RAW POST数据才能真正保存Flash发送的图像。

我知道有3种方法...

$ ol
$ li $ $ c $ $ GLOBALS ['HTTP_RAW_POST_DATA']

$ HTTP_RAW_POST_DATA这可能与第一个

file_get_contents（'php：// input'）

无论出于何种原因，这些工作都不是。通过工作我的意思是他们没有被设置，当我var转储他们，我什么也得不到。

难道是有一个设置 php.ini ，我需要设置，或者Flash应用程序确实不发送实际的图像？我认为这样做是正确的，因为它是一个半流行的API，并被其他两个站点使用，所以我很确定它是正确的。

而且它们也不需要任何API键。

解决方案

您需要在php.ini中设置 always_populate_raw_post_data = 1 来使用 HTTP_RAW_POST_DATA （看这里）。另外，请确保您将 upload_max_filesize 设置为足够大的文件大小。

但是，HTTP_RAW_POST_DATA如果POST数据是以 multipart / form-data 的形式发送的，那么在发送文件时通常会使用它。

除非你以非标准的方式发送文件，否则你应该使用 $ _ FILES 来检索上传文件。 PHP会自动将文件上传到临时位置，并将位置放在 $ _ FILES 变量中。您可以使用 move_uploaded_file 函数将其移动到您想要的位置。例如：

  $ place_to_put_the_file =/my_directory/image.jpg; 
 if（move_uploaded_file（$ _ FILES ['userfile'] ['tmp_name']，$ uploadfile））{
 echo文件有效，已成功上传。 
} else {
 echo可能的文件上传攻击！\\\
; 
} 
  

I'm basically interacting with a third party API flash file to send HTTP POST requests to my server.

I know I'm on somewhat the right path because it requires a crossdomain.xml file, and before I added that part nothing in the POST variables was showing up, however since I added that file there are 4 variables that are set, these POST variables are sent by the application to give me basic information about the file.. but I actually need to read the RAW POST data to actually save the image being sent by the Flash.

I'm aware there are 3 ways...

1. $GLOBALS['HTTP_RAW_POST_DATA']
2. $HTTP_RAW_POST_DATA which is probably the same as the first
3. file_get_contents('php://input')

For whatever reason, neither of these "work". By "work" I mean they're not being set, when I var dump them I get nothing.

Could it be that there's a setting in php.ini that I need to set, or perhaps the Flash application is truly not sending the actual image? I think it's doing the right thing, because it's a semi popular API and it's used by a couple other sites so I'm pretty sure it's right on their end.

And they don't require any sort of API key either.

解决方案

You'll need to set always_populate_raw_post_data=1 in php.ini to use HTTP_RAW_POST_DATA (look here). Also, make sure that you set upload_max_filesize to a value that is large enough for your files.

However, HTTP_RAW_POST_DATA will never work if the POST data is being sent as multipart/form-data, which is usually used when sending files.

Unless you're sending files in a non-standard way, you really should be using $_FILES to retrieve the uploads. PHP automatically saves file uploads into a temporary location and places the location in the $_FILES variable. You can use the move_uploaded_file function to move it to where you want it to be. For example:

$place_to_put_the_file = "/my_directory/image.jpg";
if (move_uploaded_file($_FILES['userfile']['tmp_name'], $uploadfile)) {
 echo "File is valid, and was successfully uploaded.\n";
} else {
 echo "Possible file upload attack!\n";
}

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