joyent/http-parserArchived
Http Parser
http-parser es una librería en C diseñada para el análisis (parsing) de mensajes HTTP sin copia (zero-copy), deconstrucción de URLs y gestión de actualizaciones de protocolo y codificación fragmentada (chunked encoding). Proporciona utilidades para extraer cabeceras, métodos y códigos de estado de las peticiones y respuestas HTTP.
El proyecto incluye un parser de URLs zero-copy para descomponer cadenas en componentes individuales y un mecanismo para detectar peticiones de cambio de protocolo, identificando el desplazamiento exacto en bytes donde comienzan los datos no HTTP. También cuenta con un decodificador para manejar flujos de datos con transferencia codificada por fragmentos.
Features
- Message Parsing - Implements a zero-copy approach to extract header fields, status codes, and methods from HTTP requests and responses.
- Zero-Copy Parsing - Extracts data from input buffers by referencing pointers to the original memory instead of allocating new tokens.
- Chunked Transfer Encoding - Decodes data streams using chunked transfer encoding to retrieve the final response body.
- HTTP Message Parsers - Provides a C library for extracting headers, methods, and status codes using a high-performance zero-copy approach.
- URL Parsers - Offers a high-performance utility for deconstructing URL strings into individual components without memory allocation.
- Incremental Stream Processing - Processes incoming HTTP data incrementally in small chunks to avoid loading entire requests into memory.
- State-Based Parsing - Uses a state-machine based parsing technique to track context and handle byte streams incrementally.
- URL Component Deconstructors - Splits complex URL strings into constituent parts such as host, path, and query parameters.
- URL Data Parsing - Converts raw URL strings into structured components using a zero-copy utility.
- HTTP Upgrade Handlers - Handles the conversion of inbound HTTP requests into persistent connections by detecting protocol upgrade requests.
- Stream Offset Tracking - Tracks the exact byte position within the message stream to identify where protocol transitions occur.
- C Memory Management - Implements low-level memory allocation and cleanup for buffers within a C-based library to minimize overhead.
- Protocol Upgrades - Detects requests to switch protocols and identifies the byte offset where the new protocol stream begins.
- Development Utilities - C-based HTTP request/response parser.
