Spider

Multithreaded web crawler written in Rust.

Dependencies

On Debian or other DEB based distributions:

bash $ sudo apt install openssl libssl-dev

On Fedora and other RPM based distributions:

bash $ sudo dnf install openssl-devel

Usage

Add this dependency to your Cargo.toml file.

toml [dependencies] spider = "1.3.1"

Then you'll be able to use library. Here is a simple example:

```rust extern crate spider;

use spider::website::Website;

fn main() { let mut website: Website = Website::new("https://choosealicense.com"); website.crawl();

for page in website.get_pages() {
    println!("- {}", page.get_url());
}

} ```

You can use Configuration object to configure your crawler:

```rust // .. let mut website: Website = Website::new("https://choosealicense.com"); website.configuration.blacklisturl.push("https://choosealicense.com/licenses/".tostring()); website.configuration.respectrobotstxt = true; website.configuration.verbose = true; // Defaults to false website.configuration.delay = 2000; // Defaults to 250 ms website.configuration.concurrency = 10; // Defaults to 4 website.configuration.useragent = "myapp/version"; // Defaults to spider/x.y.z, where x.y.z is the library version website.onlinkfindcallback = |s| { println!("link target: {}", s); s }; // Callback to run on each link find

website.crawl(); ```

You can get a working example at example.rs and run it with

sh cargo run --example example

TODO

• [x] multi-threaded system
• [x] respect robot.txt file
• [x] add configuration object for polite delay, etc..
• [x] add polite delay
• [ ] parse command line arguments

Contribute

I am open-minded to any contribution. Just fork & commit on another branch.