[Info-vax] HTTP and HTML File Upload Basics

[Arne Vajhøj]

On 10/20/2020 3:37 PM, Stephen Hoffman wrote:
> On 2020-10-20 19:11:34 +0000, Arne Vajhj said:
>> On 10/20/2020 3:05 PM, Stephen Hoffman wrote:
>>> On 2020-10-20 17:32:08 +0000, Phillip Helbig (undress to reply said:
>>>> Does anyone have a basic DCL script which, when called as a script 
>>>> by the web server, can upload a file from the browser machine to the 
>>>> server
>>>> machine?
>>>
>>> CGI doesn't get used for this. A CGI-based fetch as you're likely 
>>> envisioning here would be routinely blocked network firewalls, among 
>>> other details.
>>
>> ????
>>
>> I belive he is asking for:
>>
>> browser---(POST of file)---web server---CGI script---disk file
>>
>> That is very much possible.
> 
> Note that I did not state that scripting an upload was impossible,

What I outlined above is not scripting an upload.

Scripting an upload would be:

script---browser---(POST of file)---web server---?---disk file

>                                                                    and 
> please see previously-linked resources around using POST for secure file 
> uploads.

There are only two options for file upload: POST and PUT.

>> And the firewall will most likely not even know that the target URL is 
>> a CGI script.
> 
> And I'm here assuming that this was for "sort of the equivalent of 
> anonymous FTP" and a "basic DCL script" for the upload, hence my links 
> to using POST.

It was the service that would be similar to a FTP service.

> If the DCL script is running an FTP CGI as was suggested,

What is an FTP CGI?

Arne