nativeextractor.js

nativeextractor.js

This is official (NativeExtractor)[https://github.com/SpongeData-cz/nativeextractor] binding for Node.js

Installation

Requirements

• Node.JS >=10
• npm
• build-essential (gcc, make)
• libglib2.0, libglib2.0-dev

We recommend to use virtual environments.

sudo pip install nodeenv
nodeenv myproject
source myproject/bin/activate

Instant npm solution

TODO: npm install nativeextractor.js

Manual

• Clone the repo git clone --recurse-submodules https://github.com/SpongeData-cz/nativeextractor-js.git

• Install via npm

  npm install ./nativeextractor.js/
  

Typical usage

const ne = require('nativeextractor.js');
const path = require('path');

// Accumulated results
let results = [];

function test() {
    // Instantiate Extractor
    const ex = new ne.Extractor();
    // Add naive email miner - see src/example/naive_email_miner.c for details
    if (!ex.addMiner(path.join(ne.defaultMinersPath, "naive_email_miner.so"), "match_email_naive")) {
        console.log(ex.getLastError());
        return;
    }
    // String to extract on
    const buffer = "[e-mail] dead beaf";

    // Create buffer stream (from memory)
    const stream = new ne.BufferStream(buffer);

    // Set the stream to the extractor
    ex.setStream(stream);

    // Check if stream is already on its end
    if (ex.eof()) {
        return;
    }

    // Pick next batch of result
    ex.next(function (err, res) {
        // Print found results
        console.log(res);
        results = [...results, ...res];
        if (ex.eof()) {
            // Unset stream for sure
            ex.unsetStream();
            return;
        }
        // Asynchronous recursion
        ex.next(arguments.callee);
    });
}

test();