html2canvas/karma.js

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const Server = require('karma').Server;
const cfg = require('karma').config;
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const path = require('path');
const proxy = require('html2canvas-proxy');
const karmaConfig = cfg.parseConfig(path.resolve('./karma.conf.js'));
const server = new Server(karmaConfig, (exitCode) => {
console.log('Karma has exited with ' + exitCode);
process.exit(exitCode)
});
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const fs = require('fs');
const express = require('express');
const bodyParser = require('body-parser');
const cors = require('cors');
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const filenamifyUrl = require('filenamify-url');
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const mkdirp = require('mkdirp');
const screenshotFolder = './tmp/reftests';
mkdirp.sync(path.resolve(__dirname, screenshotFolder));
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const CORS_PORT = 8081;
const corsApp = express();
corsApp.use('/proxy', proxy());
corsApp.use('/cors', cors(), express.static(path.resolve(__dirname)));
corsApp.use('/', express.static(path.resolve(__dirname, '/tests')));
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corsApp.use((error, req, res, next) => {
console.error(error);
next();
});
process.on('uncaughtException', (err) => {
if(err.errno === 'EADDRINUSE') {
console.warn(err);
} else {
console.log(err);
process.exit(1);
}
});
corsApp.listen(CORS_PORT, () => {
console.log(`CORS server running on port ${CORS_PORT}`);
});
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const app = express();
app.use(cors());
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app.use((req, res, next) => {
// IE9 doesn't set headers for cross-domain ajax requests
if(typeof(req.headers['content-type']) === 'undefined'){
req.headers['content-type'] = "application/json";
}
next();
});
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app.use(
bodyParser.json({
limit: '15mb',
type: '*/*'
})
);
const prefix = 'data:image/png;base64,';
const writeScreenshot = (buffer, body) => {
const filename = `${filenamifyUrl(
body.test.replace(/^\/tests\/reftests\//, '').replace(/\.html$/, ''),
{replacement: '-'}
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)}!${[process.env.TARGET_BROWSER, body.platform.name, body.platform.version].join('-')}.png`;
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fs.writeFileSync(path.resolve(__dirname, screenshotFolder, filename), buffer);
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};
app.post('/screenshot', (req, res) => {
if (!req.body || !req.body.screenshot) {
return res.sendStatus(400);
}
const buffer = new Buffer(req.body.screenshot.substring(prefix.length), 'base64');
writeScreenshot(buffer, req.body);
return res.sendStatus(200);
});
const chunks = {};
app.post('/screenshot/chunk', (req, res) => {
if (!req.body || !req.body.screenshot) {
return res.sendStatus(400);
}
const key = `${req.body.platform.name}-${req.body.platform.version}-${req.body.test
.replace(/^\/tests\/reftests\//, '')
.replace(/\.html$/, '')}`;
if (!Array.isArray(chunks[key])) {
chunks[key] = Array.from(Array(req.body.totalCount));
}
chunks[key][req.body.part] = req.body.screenshot;
if (chunks[key].every(s => typeof s === 'string')) {
const str = chunks[key].reduce((acc, s) => acc + s, '');
const buffer = new Buffer(str.substring(prefix.length), 'base64');
delete chunks[key];
writeScreenshot(buffer, req.body);
}
return res.sendStatus(200);
});
app.use((error, req, res, next) => {
console.error(error);
next();
});
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const listener = app.listen(8000, () => {
server.start();
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});