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65 lines
1.5 KiB
65 lines
1.5 KiB
var express = require('express');
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var fs = require('fs');
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var NPM_PATH = process.env.HOME + '/.npm';
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var REGISTRY_NAME = 'registry.npmjs.org';
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var LOCAL_REGISTRY = 'localhost:8080';
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var app = express();
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function patchData( data ){
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Object.keys(data.versions).forEach( function( v ){
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var val = data.versions[v];
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val.dist.tarball = val.dist.tarball.replace( REGISTRY_NAME, LOCAL_REGISTRY );
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});
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}
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app.use( function(req, res, next ){
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console.log(req.method, req.path );
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next();
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});
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app.get( '/:package', function( req, res ){
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var packageName = req.params.package;
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var cacheFile = [ NPM_PATH, REGISTRY_NAME, packageName, '.cache.json' ].join( '/' );
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var cacheData = fs.readFileSync( cacheFile, 'utf-8' );
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cacheData = JSON.parse( cacheData );
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patchData( cacheData );
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return res.send( cacheData );
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});
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app.get( '/:package/-/:packageName-:version.tgz', function( req, res ){
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var packageName = req.params.package;
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var version = req.params.version.split('-').pop();
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var packagePath = [ NPM_PATH , packageName, version, 'package.tgz'].join( '/' );
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return fs.createReadStream( packagePath ).pipe( res );
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});
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// catch 404 and forward to error handler
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app.use(function(req, res, next) {
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var err = new Error('Not Found');
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err.status = 404;
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next(err);
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});
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// error handlers
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// development error handler
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// will print stacktrace
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if (app.get('env') === 'development') {
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app.use(function(err, req, res, next) {
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res.status(err.status || 500);
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res.send({
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message: err.message,
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error: err
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});
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});
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}
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module.exports = app;
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