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项目作者： dejongyeong

项目描述 ：
IT Tralee Year 4 Module: Distributed Computing - UDP File Transfer Implementation with DTLS
高级语言： Java
项目地址: git://github.com/dejongyeong/file-server-system.git
创建时间： 2019-03-16T21:13:01Z
项目社区：https://github.com/dejongyeong/file-server-system
开源协议：
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UDP File Server Transfer System

File Transfer implementation for Distributed Computing assignment in Institute of Technology Tralee, Kerry, Ireland.

Both client-side and server-side provides a MS-DOS interface implementation (Not GUI).
Client Functionalities:

  • Login.
  • Logout.
  • Register (additional feature).
  • Upload a file to folder unique to each client on the server.
  • Download a file to a folder.

Server Functionalities:

  • Execute functionalities requested by user mentioned above.
  • DTLS implementation to secure communication on UDP-based application (Java 9 API and above).

DTLSEngine and DTLSOverDatagram were referenced based on OpenJDK.

Protocol message was designed based on RFC 768 and reference to RFC 959. Table below shows a summary of server response code and its response message.

Client Request Server Response Code Server Response Message
300 Login 301 Login successful.
302 Login unsuccessful.
303 User is already logged in.
400 Logout 401 Logout successful.
402 Logout unsuccessful.
500 Register 501 Register successful.
502 Register unsuccessful.
600 Upload 601 Upload successful.
602 Upload unsuccessful. Please login.
603 Upload unsuccessful. File not found.
700 Download 701 Download successful.
702 Download unsuccessful. Please login.
703 Download unsuccessful. File not found.
- 900 Invalid message. System Error.

Note: SSL Keystore was generated by author, not from registered organization. A detailed documentation including user manual and protocol message design is available upon request.