75 lines
1.9 KiB
JavaScript
75 lines
1.9 KiB
JavaScript
"use strict";
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var config = require('config');
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require('../../models/db');
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var fs = require('fs');
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var phantom = require('node-phantom-simple');
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var md5 = require('md5');
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var express = require('express');
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var router = express.Router();
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function website_to_png(url,on_success,on_error) {
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var hash = md5(url);
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var export_path = "/tmp/webgrabber-"+hash+".png";
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var timeout = 2000;
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console.log("[webgrabber] url: "+url);
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console.log("[webgrabber] export_path: "+export_path);
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var on_success_called = false;
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var on_exit = function(exit_code) {
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if (exit_code>0) {
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console.log("[phantom-webgrabber] abnormal exit for url "+url);
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if (!on_success_called && on_error) {
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on_error();
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}
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}
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};
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fs.stat(export_path, function(err, stat) {
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if (!err) {
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// file exists
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console.log("[webgrabber] serving cached snapshot of url: "+url);
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on_success(export_path);
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} else {
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phantom.create({ path: require('phantomjs-prebuilt').path }, function (err, browser) {
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return browser.createPage(function (err, page) {
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page.set('settings.resourceTimeout',timeout);
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page.set('settings.javascriptEnabled',false);
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return page.open(url, function(err, status) {
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console.log("[webgrabber] status: "+status);
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page.render(export_path, function() {
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on_success_called = true;
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on_success(export_path);
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browser.exit();
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});
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});
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});
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}, {
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onExit: on_exit
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});
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}
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});
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}
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router.get('/:id', function (req, res) {
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var uri = new Buffer(req.params.id, "base64")+"";
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var on_success_called = false;
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website_to_png(uri, (image_path) => {
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on_success_called = true;
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res.sendFile(image_path);
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}, () => {
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if (!on_success_called) {
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res.status(500).send("[webgrabber] Error fetching website.");
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}
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});
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});
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module.exports = router;
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