GetFilenameFromUrl.js
1.96 KB
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var pathJoin = require("./PathJoin");
var querystring = require("querystring");
var urlParse = require("url").parse;
function getFilenameFromUrl(publicPath, outputPath, url) {
var filename;
// localPrefix is the folder our bundle should be in
var localPrefix = urlParse(publicPath || "/", false, true);
var urlObject = urlParse(url);
// publicPath has the hostname that is not the same as request url's, should fail
if(localPrefix.hostname !== null && urlObject.hostname !== null &&
localPrefix.hostname !== urlObject.hostname) {
return false;
}
// publicPath is not in url, so it should fail
if(publicPath && localPrefix.hostname === urlObject.hostname && url.indexOf(publicPath) !== 0) {
return false;
}
// strip localPrefix from the start of url
if(urlObject.pathname.indexOf(localPrefix.pathname) === 0) {
filename = urlObject.pathname.substr(localPrefix.pathname.length);
}
if(!urlObject.hostname && localPrefix.hostname &&
url.indexOf(localPrefix.path) !== 0) {
return false;
}
// and if not match, use outputPath as filename
return querystring.unescape(filename ? pathJoin(outputPath, filename) : outputPath);
}
// support for multi-compiler configuration
// see: https://github.com/webpack/webpack-dev-server/issues/641
function getPaths(publicPath, compiler, url) {
var compilers = compiler && compiler.compilers;
if(Array.isArray(compilers)) {
var compilerPublicPath;
for(var i = 0; i < compilers.length; i++) {
compilerPublicPath = compilers[i].options
&& compilers[i].options.output
&& compilers[i].options.output.publicPath;
if(url.indexOf(compilerPublicPath) === 0) {
return {
publicPath: compilerPublicPath,
outputPath: compilers[i].outputPath
};
}
}
}
return {
publicPath: publicPath,
outputPath: compiler.outputPath
};
}
module.exports = function(publicPath, compiler, url) {
var paths = getPaths(publicPath, compiler, url);
return getFilenameFromUrl(paths.publicPath, paths.outputPath, url);
};