Rust Web Scraper

A simple web scraper built in Rust using asynchronous programming with tokio. The application allows users to start and stop web scraping tasks, list current tasks, and print collected links from scraped websites via a command-line interface (CLI).

Features

• Asynchronous Scraping: Utilizes tokio for asynchronous operations, allowing multiple scraping tasks to run concurrently.
• Interactive CLI: Provides an interactive command-line interface for users to manage scraping tasks.
• URL Normalization: Handles various URL formats and normalizes them for consistent processing.
• Link Collection: Collects and stores links from scraped websites, preventing duplicates.
• Logging: Includes logging capabilities using the log and env_logger crates for monitoring and debugging.

Project Structure

• scraper_lib: A library crate containing the scraping logic and the ScraperManager.
• server: A binary crate that runs the server, handling client connections and commands.
• cli: A binary crate providing the interactive command-line interface for users.

Getting Started

Prerequisites

• Rust and Cargo: Install Rust and Cargo from rustup.rs.

Building the Project

Clone the repository:

• clone it

Build the project:

cargo build

Running the Server:

cargo run -p server

Using the CLI

In another terminal, run the CLI:

cargo run -p cli

Start Scraping:

start

• Starts scraping the specified URL.

Stop Scraping:

stop

• Stops the scraping task for the specified URL.

List Tasks:

list

• Lists all current scraping tasks with their statuses.

Print Links:

print

• Prints the links collected from the specified URL.

Help:

help

• Displays the list of available commands.

Exit:

exit

Example:

start colinrhys.io Started scraping

list http://colinrhys.io: crawling

stop colinrhys.io Stopped scraping

list http://colinrhys.io: stopped

print colinrhys.io http://colinrhys.io/ http://colinrhys.io/about ...

exit

Logging

The application uses the log and env_logger crates for logging. You can control the log level by setting the RUST_LOG environment variable.

Example: RUST_LOG=info cargo run -p server