gecko-dev/content/base/test/csp/file_csp_testserver.sjs

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// SJS file for CSP mochitests
Components.utils.import("resource://gre/modules/NetUtil.jsm");
function loadHTMLFromFile(path) {
// Load the HTML to return in the response from file.
// Since it's relative to the cwd of the test runner, we start there and
// append to get to the actual path of the file.
var testHTMLFile =
Components.classes["@mozilla.org/file/directory_service;1"].
getService(Components.interfaces.nsIProperties).
get("CurWorkD", Components.interfaces.nsILocalFile);
var dirs = path.split("/");
for (var i = 0; i < dirs.length; i++) {
testHTMLFile.append(dirs[i]);
}
var testHTMLFileStream =
Components.classes["@mozilla.org/network/file-input-stream;1"].
createInstance(Components.interfaces.nsIFileInputStream);
testHTMLFileStream.init(testHTMLFile, -1, 0, 0);
var testHTML = NetUtil.readInputStreamToString(testHTMLFileStream, testHTMLFileStream.available());
return testHTML;
}
function handleRequest(request, response)
{
var query = {};
request.queryString.split('&').forEach(function (val) {
var [name, value] = val.split('=');
query[name] = unescape(value);
});
var csp = unescape(query['csp']);
var file = unescape(query['file']);
// avoid confusing cache behaviors
response.setHeader("Cache-Control", "no-cache", false);
// Deliver the CSP policy encoded in the URI
response.setHeader("Content-Security-Policy", csp, false);
// Send HTML to test allowed/blocked behaviors
response.setHeader("Content-Type", "text/html", false);
response.write(loadHTMLFromFile(file));
}