Hi,
I believe you only need a web-service (.asmx web service) that uploads a file to sharepoint Doc Library.
But over here my question is
1 - How would you consume this webservice?
2 - This webservice would have a parameter of type byte[] where you would be posting your file. Is that OK with you? The code that will consume this webservice would have to pass this byte[] of the file.
Please let me know if you need anything else.
Regards,
Kunal