This folder gives access to the Network Communication Layer used by the mORMot Open Source framework, version 2.

All mormot.net.*.pas units define client/server communication as used by our framework, especially for its REST features, over sockets, HTTP and WebSockets.

Cross-Platform Raw Sockets API Definition

• Socket Process High-Level Encapsulation
• MAC and IP Addresses Support
• TLS / HTTPS Encryption Abstract Layer
• Efficient Multiple Sockets Polling
• TUri parsing/generating URL wrapper
• TCrtSocket Buffered Socket Read/Write Class

The Low-Level Sockets API is encapsultated into a single set of functions, and wrapped around a TNetSocket abstract helper, and never made public.

HTTP/HTTPS Abstract Process Classes and Definitions

• Shared HTTP Constants and Functions
• THttpSocket Implementing HTTP over plain sockets
• Abstract Server-Side Types used e.g. for Client-Server Protocol

HTTP Client Classes

• THttpMultiPartStream for multipart/formdata HTTP POST
• THttpClientSocket Implementing HTTP client over plain sockets
• THttpRequest Abstract HTTP client class
• TWinHttp TWinINet TWinHttpWebSocketClient TCurlHTTP
• TSimpleHttpClient Wrapper Class
• Cached HTTP Connection to a Remote Server
• Send Email using the SMTP Protocol
• DNS Resolution Cache for mormot.net.sock NewSocket()

HTTP Server Classes

• Shared Server-Side HTTP Process
• THttpServerSocket/THttpServer HTTP/1.1 Server
• THttpApiServer HTTP/1.1 Server Over Windows http.sys Module
• THttpApiWebSocketServer Over Windows http.sys Module

Event-Driven Network Classes and Functions

• Low-Level Non-blocking Connections
• Client or Server Asynchronous Process

Used e.g. by both mormot.net.relay and mormot.net.rtsphttp to handle thousands on concurrent streams, with minimal resources, in a cross-platform way.

WebSockets Abstract Processing for Client and Server

• WebSockets Frames Definitions
• WebSockets Protocols Implementation
• WebSockets Client and Server Shared Process
• TWebSocketProtocolChat Simple Protocol

WebSockets Bidirectional Client

• TWebSocketProcessClient Processing Class
• THttpClientWebSockets Bidirectional REST Client

WebSockets Bidirectional Server

• TWebSocketProcessServer Processing Class
• TWebSocketServerSocket Bidirectional REST Server

Asynchronous WebSockets Bidirectional Server

• TWebSocketAsyncServer Event-Driven HTTP/WebSockets Server
• TWebSocketAsyncServerRest Bidirectional REST Server

Secured Tunneling over WebSockets

• Low-level Shared Definitions
• Low-level WebSockets Relaying Protocols
• Public and Private relay process

RTSP Stream Tunnelling over HTTP as defined by Apple at https://goo.gl/CX6VA3

• Low-level HTTP and RTSP Connections
• RTSP over HTTP Tunnelling

Encapsulate a RTSP TCP/IP duplex video stream into two HTTP links, one POST for upgoing commands, and one GET for downloaded video.

TFTP Protocol and Client with RFC 1350/2347/2348/2349/7440 Support

• TFTP Protocol Definitions

Current limitation: no Client code is defined yet - only the raw TFTP protocol.

TFTP Server Processing with RFC 1350/2347/2348/2349/7440 Support

• Abstract UDP Server
• TFTP Connection Thread and State Machine
• TTftpServerThread Server Class

Current limitation: only RRQ requests are supported/tested yet.

Automatic Certificate Management Environment (ACME v2) Client

• Low-Level Cryptographic Wrappers
• JWS HTTP-client implementation
• ACME client implementation
• Let's Encrypt TLS / HTTPS Encryption Certificates Support
• HTTP-01 Let's Encrypt Challenges HTTP Server on port 80