gecko-dev/netwerk/test/unit/test_range_requests.js

274 lines
9.9 KiB
JavaScript

//
// This test makes sure range-requests are sent and treated the way we want
// See bug #612135 for a thorough discussion on the subject
//
// Necko does a range-request for a partial cache-entry iff
//
// 1) size of the cached entry < value of the cached Content-Length header
// (not tested here - see bug #612135 comments 108-110)
// 2) the size of the cached entry is > 0 (see bug #628607)
// 3) the cached entry does not have a "no-store" Cache-Control header
// 4) the cached entry does not have a Content-Encoding (see bug #613159)
// 5) the request does not have a conditional-request header set by client
// 6) nsHttpResponseHead::IsResumable() is true for the cached entry
//
// The test has one handler for each case and run_tests() fires one request
// for each. None of the handlers should see a Range-header.
const Cc = Components.classes;
const Ci = Components.interfaces;
const Cu = Components.utils;
const Cr = Components.results;
Cu.import("resource://testing-common/httpd.js");
var httpserver = null;
const clearTextBody = "This is a slightly longer test\n";
const encodedBody = [0x1f, 0x8b, 0x08, 0x08, 0xef, 0x70, 0xe6, 0x4c, 0x00, 0x03, 0x74, 0x65, 0x78, 0x74, 0x66, 0x69,
0x6c, 0x65, 0x2e, 0x74, 0x78, 0x74, 0x00, 0x0b, 0xc9, 0xc8, 0x2c, 0x56, 0x00, 0xa2, 0x44, 0x85,
0xe2, 0x9c, 0xcc, 0xf4, 0x8c, 0x92, 0x9c, 0x4a, 0x85, 0x9c, 0xfc, 0xbc, 0xf4, 0xd4, 0x22, 0x85,
0x92, 0xd4, 0xe2, 0x12, 0x2e, 0x2e, 0x00, 0x00, 0xe5, 0xe6, 0xf0, 0x20, 0x00, 0x00, 0x00];
const decodedBody = [0x54, 0x68, 0x69, 0x73, 0x20, 0x69, 0x73, 0x20, 0x61, 0x20, 0x73, 0x6c, 0x69, 0x67, 0x68, 0x74,
0x6c, 0x79, 0x20, 0x6c, 0x6f, 0x6e, 0x67, 0x65, 0x72, 0x20, 0x74, 0x65, 0x73, 0x74, 0x0a, 0x0a];
const partial_data_length = 4;
function make_channel(url, callback, ctx) {
var ios = Cc["@mozilla.org/network/io-service;1"].
getService(Ci.nsIIOService);
var chan = ios.newChannel(url, "", null);
return chan.QueryInterface(Ci.nsIHttpChannel);
}
// StreamListener which cancels its request on first data available
function Canceler(continueFn) {
this.continueFn = continueFn;
}
Canceler.prototype = {
QueryInterface: function(iid) {
if (iid.equals(Ci.nsIStreamListener) ||
iid.equals(Ci.nsIRequestObserver) ||
iid.equals(Ci.nsISupports))
return this;
throw Components.results.NS_ERROR_NO_INTERFACE;
},
onStartRequest: function(request, context) { },
onDataAvailable: function(request, context, stream, offset, count) {
request.QueryInterface(Ci.nsIChannel)
.cancel(Components.results.NS_BINDING_ABORTED);
},
onStopRequest: function(request, context, status) {
do_check_eq(status, Components.results.NS_BINDING_ABORTED);
this.continueFn(request, null);
}
};
// Simple StreamListener which performs no validations
function MyListener(continueFn) {
this.continueFn = continueFn;
this._buffer = null;
}
MyListener.prototype = {
QueryInterface: function(iid) {
if (iid.equals(Ci.nsIStreamListener) ||
iid.equals(Ci.nsIRequestObserver) ||
iid.equals(Ci.nsISupports))
return this;
throw Components.results.NS_ERROR_NO_INTERFACE;
},
onStartRequest: function(request, context) { this._buffer = ""; },
onDataAvailable: function(request, context, stream, offset, count) {
this._buffer = this._buffer.concat(read_stream(stream, count));
},
onStopRequest: function(request, context, status) {
this.continueFn(request, this._buffer);
}
};
function received_cleartext(request, data) {
do_check_eq(clearTextBody, data);
testFinished();
}
function setStdHeaders(response, length) {
response.setHeader("Content-Type", "text/plain", false);
response.setHeader("ETag", "Just testing");
response.setHeader("Cache-Control", "max-age: 360000");
response.setHeader("Accept-Ranges", "bytes");
response.setHeader("Content-Length", "" + length);
}
function handler_2(metadata, response) {
setStdHeaders(response, clearTextBody.length);
do_check_false(metadata.hasHeader("Range"));
response.bodyOutputStream.write(clearTextBody, clearTextBody.length);
}
function received_partial_2(request, data) {
do_check_eq(data, undefined);
var chan = make_channel("http://localhost:4444/test_2");
chan.asyncOpen(new ChannelListener(received_cleartext, null), null);
}
var case_3_request_no = 0;
function handler_3(metadata, response) {
var body = clearTextBody;
setStdHeaders(response, body.length);
response.setHeader("Cache-Control", "no-store", false);
switch (case_3_request_no) {
case 0:
do_check_false(metadata.hasHeader("Range"));
body = body.slice(0, partial_data_length);
response.processAsync();
response.bodyOutputStream.write(body, body.length);
response.finish();
break;
case 1:
do_check_false(metadata.hasHeader("Range"));
response.bodyOutputStream.write(body, body.length);
break;
default:
response.setStatusLine(metadata.httpVersion, 404, "Not Found");
}
case_3_request_no++;
}
function received_partial_3(request, data) {
do_check_eq(partial_data_length, data.length);
var chan = make_channel("http://localhost:4444/test_3");
chan.asyncOpen(new ChannelListener(received_cleartext, null), null);
}
var case_4_request_no = 0;
function handler_4(metadata, response) {
switch (case_4_request_no) {
case 0:
do_check_false(metadata.hasHeader("Range"));
var body = encodedBody;
setStdHeaders(response, body.length);
response.setHeader("Content-Encoding", "gzip", false);
body = body.slice(0, partial_data_length);
var bos = Cc["@mozilla.org/binaryoutputstream;1"]
.createInstance(Ci.nsIBinaryOutputStream);
bos.setOutputStream(response.bodyOutputStream);
response.processAsync();
bos.writeByteArray(body, body.length);
response.finish();
break;
case 1:
do_check_false(metadata.hasHeader("Range"));
setStdHeaders(response, clearTextBody.length);
response.bodyOutputStream.write(clearTextBody, clearTextBody.length);
break;
default:
response.setStatusLine(metadata.httpVersion, 404, "Not Found");
}
case_4_request_no++;
}
function received_partial_4(request, data) {
// checking length does not work with encoded data
// do_check_eq(partial_data_length, data.length);
var chan = make_channel("http://localhost:4444/test_4");
chan.asyncOpen(new MyListener(received_cleartext), null);
}
var case_5_request_no = 0;
function handler_5(metadata, response) {
var body = clearTextBody;
setStdHeaders(response, body.length);
switch (case_5_request_no) {
case 0:
do_check_false(metadata.hasHeader("Range"));
body = body.slice(0, partial_data_length);
response.processAsync();
response.bodyOutputStream.write(body, body.length);
response.finish();
break;
case 1:
do_check_false(metadata.hasHeader("Range"));
response.bodyOutputStream.write(body, body.length);
break;
default:
response.setStatusLine(metadata.httpVersion, 404, "Not Found");
}
case_5_request_no++;
}
function received_partial_5(request, data) {
do_check_eq(partial_data_length, data.length);
var chan = make_channel("http://localhost:4444/test_5");
chan.setRequestHeader("If-Match", "Some eTag", false);
chan.asyncOpen(new ChannelListener(received_cleartext, null), null);
}
var case_6_request_no = 0;
function handler_6(metadata, response) {
switch (case_6_request_no) {
case 0:
do_check_false(metadata.hasHeader("Range"));
var body = clearTextBody;
setStdHeaders(response, body.length);
response.setHeader("Accept-Ranges", "", false);
body = body.slice(0, partial_data_length);
response.processAsync();
response.bodyOutputStream.write(body, body.length);
response.finish();
break;
case 1:
do_check_false(metadata.hasHeader("Range"));
setStdHeaders(response, clearTextBody.length);
response.bodyOutputStream.write(clearTextBody, clearTextBody.length);
break;
default:
response.setStatusLine(metadata.httpVersion, 404, "Not Found");
}
case_6_request_no++;
}
function received_partial_6(request, data) {
// would like to verify that the response does not have Accept-Ranges
do_check_eq(partial_data_length, data.length);
var chan = make_channel("http://localhost:4444/test_6");
chan.asyncOpen(new ChannelListener(received_cleartext, null), null);
}
// Simple mechanism to keep track of tests and stop the server
var numTestsFinished = 0;
function testFinished() {
if (++numTestsFinished == 5)
httpserver.stop(do_test_finished);
}
function run_test() {
httpserver = new HttpServer();
httpserver.registerPathHandler("/test_2", handler_2);
httpserver.registerPathHandler("/test_3", handler_3);
httpserver.registerPathHandler("/test_4", handler_4);
httpserver.registerPathHandler("/test_5", handler_5);
httpserver.registerPathHandler("/test_6", handler_6);
httpserver.start(4444);
// wipe out cached content
evict_cache_entries();
// Case 2: zero-length partial entry must not trigger range-request
var chan = make_channel("http://localhost:4444/test_2");
chan.asyncOpen(new Canceler(received_partial_2), null);
// Case 3: no-store response must not trigger range-request
var chan = make_channel("http://localhost:4444/test_3");
chan.asyncOpen(new MyListener(received_partial_3), null);
// Case 4: response with content-encoding must not trigger range-request
var chan = make_channel("http://localhost:4444/test_4");
chan.asyncOpen(new MyListener(received_partial_4), null);
// Case 5: conditional request-header set by client
var chan = make_channel("http://localhost:4444/test_5");
chan.asyncOpen(new MyListener(received_partial_5), null);
// Case 6: response is not resumable (drop the Accept-Ranges header)
var chan = make_channel("http://localhost:4444/test_6");
chan.asyncOpen(new MyListener(received_partial_6), null);
do_test_pending();
}