1 files changed, 424 insertions, 0 deletions
diff --git a/netwerk/test/unit/test_resumable_channel.js b/netwerk/test/unit/test_resumable_channel.js
new file mode 100644
index 0000000000..68ebf5d404
--- /dev/null
+++ b/netwerk/test/unit/test_resumable_channel.js
@@ -0,0 +1,424 @@
+/* Tests various aspects of nsIResumableChannel in combination with HTTP */
+"use strict";
+
+const { HttpServer } = ChromeUtils.import("resource://testing-common/httpd.js");
+
+XPCOMUtils.defineLazyGetter(this, "URL", function() {
+  return "http://localhost:" + httpserver.identity.primaryPort;
+});
+
+var httpserver = null;
+
+const NS_ERROR_ENTITY_CHANGED = 0x804b0020;
+const NS_ERROR_NOT_RESUMABLE = 0x804b0019;
+
+const rangeBody = "Body of the range request handler.\r\n";
+
+function make_channel(url, callback, ctx) {
+  return NetUtil.newChannel({ uri: url, loadUsingSystemPrincipal: true });
+}
+
+function AuthPrompt2() {}
+
+AuthPrompt2.prototype = {
+  user: "guest",
+  pass: "guest",
+
+  QueryInterface: ChromeUtils.generateQI(["nsIAuthPrompt2"]),
+
+  promptAuth: function ap2_promptAuth(channel, level, authInfo) {
+    authInfo.username = this.user;
+    authInfo.password = this.pass;
+    return true;
+  },
+
+  asyncPromptAuth: function ap2_async(chan, cb, ctx, lvl, info) {
+    throw 0x80004001;
+  },
+};
+
+function Requestor() {}
+
+Requestor.prototype = {
+  QueryInterface: ChromeUtils.generateQI(["nsIInterfaceRequestor"]),
+
+  getInterface: function requestor_gi(iid) {
+    if (iid.equals(Ci.nsIAuthPrompt2)) {
+      // Allow the prompt to store state by caching it here
+      if (!this.prompt2) {
+        this.prompt2 = new AuthPrompt2();
+      }
+      return this.prompt2;
+    }
+
+    throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
+  },
+
+  prompt2: null,
+};
+
+function run_test() {
+  dump("*** run_test\n");
+  httpserver = new HttpServer();
+  httpserver.registerPathHandler("/auth", authHandler);
+  httpserver.registerPathHandler("/range", rangeHandler);
+  httpserver.registerPathHandler("/acceptranges", acceptRangesHandler);
+  httpserver.registerPathHandler("/redir", redirHandler);
+
+  var entityID;
+
+  function get_entity_id(request, data, ctx) {
+    dump("*** get_entity_id()\n");
+    Assert.ok(
+      request instanceof Ci.nsIResumableChannel,
+      "must be a resumable channel"
+    );
+    entityID = request.entityID;
+    dump("*** entity id = " + entityID + "\n");
+
+    // Try a non-resumable URL (responds with 200)
+    var chan = make_channel(URL);
+    chan.nsIResumableChannel.resumeAt(1, entityID);
+    chan.asyncOpen(new ChannelListener(try_resume, null, CL_EXPECT_FAILURE));
+  }
+
+  function try_resume(request, data, ctx) {
+    dump("*** try_resume()\n");
+    Assert.equal(request.status, NS_ERROR_NOT_RESUMABLE);
+
+    // Try a successful resume
+    var chan = make_channel(URL + "/range");
+    chan.nsIResumableChannel.resumeAt(1, entityID);
+    chan.asyncOpen(new ChannelListener(try_resume_zero, null));
+  }
+
+  function try_resume_zero(request, data, ctx) {
+    dump("*** try_resume_zero()\n");
+    Assert.ok(request.nsIHttpChannel.requestSucceeded);
+    Assert.equal(data, rangeBody.substring(1));
+
+    // Try a server which doesn't support range requests
+    var chan = make_channel(URL + "/acceptranges");
+    chan.nsIResumableChannel.resumeAt(0, entityID);
+    chan.nsIHttpChannel.setRequestHeader("X-Range-Type", "none", false);
+    chan.asyncOpen(new ChannelListener(try_no_range, null, CL_EXPECT_FAILURE));
+  }
+
+  function try_no_range(request, data, ctx) {
+    dump("*** try_no_range()\n");
+    Assert.ok(request.nsIHttpChannel.requestSucceeded);
+    Assert.equal(request.status, NS_ERROR_NOT_RESUMABLE);
+
+    // Try a server which supports "bytes" range requests
+    var chan = make_channel(URL + "/acceptranges");
+    chan.nsIResumableChannel.resumeAt(0, entityID);
+    chan.nsIHttpChannel.setRequestHeader("X-Range-Type", "bytes", false);
+    chan.asyncOpen(new ChannelListener(try_bytes_range, null));
+  }
+
+  function try_bytes_range(request, data, ctx) {
+    dump("*** try_bytes_range()\n");
+    Assert.ok(request.nsIHttpChannel.requestSucceeded);
+    Assert.equal(data, rangeBody);
+
+    // Try a server which supports "foo" and "bar" range requests
+    var chan = make_channel(URL + "/acceptranges");
+    chan.nsIResumableChannel.resumeAt(0, entityID);
+    chan.nsIHttpChannel.setRequestHeader("X-Range-Type", "foo, bar", false);
+    chan.asyncOpen(
+      new ChannelListener(try_foo_bar_range, null, CL_EXPECT_FAILURE)
+    );
+  }
+
+  function try_foo_bar_range(request, data, ctx) {
+    dump("*** try_foo_bar_range()\n");
+    Assert.ok(request.nsIHttpChannel.requestSucceeded);
+    Assert.equal(request.status, NS_ERROR_NOT_RESUMABLE);
+
+    // Try a server which supports "foobar" range requests
+    var chan = make_channel(URL + "/acceptranges");
+    chan.nsIResumableChannel.resumeAt(0, entityID);
+    chan.nsIHttpChannel.setRequestHeader("X-Range-Type", "foobar", false);
+    chan.asyncOpen(
+      new ChannelListener(try_foobar_range, null, CL_EXPECT_FAILURE)
+    );
+  }
+
+  function try_foobar_range(request, data, ctx) {
+    dump("*** try_foobar_range()\n");
+    Assert.ok(request.nsIHttpChannel.requestSucceeded);
+    Assert.equal(request.status, NS_ERROR_NOT_RESUMABLE);
+
+    // Try a server which supports "bytes" and "foobar" range requests
+    var chan = make_channel(URL + "/acceptranges");
+    chan.nsIResumableChannel.resumeAt(0, entityID);
+    chan.nsIHttpChannel.setRequestHeader(
+      "X-Range-Type",
+      "bytes, foobar",
+      false
+    );
+    chan.asyncOpen(new ChannelListener(try_bytes_foobar_range, null));
+  }
+
+  function try_bytes_foobar_range(request, data, ctx) {
+    dump("*** try_bytes_foobar_range()\n");
+    Assert.ok(request.nsIHttpChannel.requestSucceeded);
+    Assert.equal(data, rangeBody);
+
+    // Try a server which supports "bytesfoo" and "bar" range requests
+    var chan = make_channel(URL + "/acceptranges");
+    chan.nsIResumableChannel.resumeAt(0, entityID);
+    chan.nsIHttpChannel.setRequestHeader(
+      "X-Range-Type",
+      "bytesfoo, bar",
+      false
+    );
+    chan.asyncOpen(
+      new ChannelListener(try_bytesfoo_bar_range, null, CL_EXPECT_FAILURE)
+    );
+  }
+
+  function try_bytesfoo_bar_range(request, data, ctx) {
+    dump("*** try_bytesfoo_bar_range()\n");
+    Assert.ok(request.nsIHttpChannel.requestSucceeded);
+    Assert.equal(request.status, NS_ERROR_NOT_RESUMABLE);
+
+    // Try a server which doesn't send Accept-Ranges header at all
+    var chan = make_channel(URL + "/acceptranges");
+    chan.nsIResumableChannel.resumeAt(0, entityID);
+    chan.asyncOpen(new ChannelListener(try_no_accept_ranges, null));
+  }
+
+  function try_no_accept_ranges(request, data, ctx) {
+    dump("*** try_no_accept_ranges()\n");
+    Assert.ok(request.nsIHttpChannel.requestSucceeded);
+    Assert.equal(data, rangeBody);
+
+    // Try a successful suspend/resume from 0
+    var chan = make_channel(URL + "/range");
+    chan.nsIResumableChannel.resumeAt(0, entityID);
+    chan.asyncOpen(
+      new ChannelListener(
+        try_suspend_resume,
+        null,
+        CL_SUSPEND | CL_EXPECT_3S_DELAY
+      )
+    );
+  }
+
+  function try_suspend_resume(request, data, ctx) {
+    dump("*** try_suspend_resume()\n");
+    Assert.ok(request.nsIHttpChannel.requestSucceeded);
+    Assert.equal(data, rangeBody);
+
+    // Try a successful resume from 0
+    var chan = make_channel(URL + "/range");
+    chan.nsIResumableChannel.resumeAt(0, entityID);
+    chan.asyncOpen(new ChannelListener(success, null));
+  }
+
+  function success(request, data, ctx) {
+    dump("*** success()\n");
+    Assert.ok(request.nsIHttpChannel.requestSucceeded);
+    Assert.equal(data, rangeBody);
+
+    // Authentication (no password; working resume)
+    // (should not give us any data)
+    var chan = make_channel(URL + "/range");
+    chan.nsIResumableChannel.resumeAt(1, entityID);
+    chan.nsIHttpChannel.setRequestHeader("X-Need-Auth", "true", false);
+    chan.asyncOpen(
+      new ChannelListener(test_auth_nopw, null, CL_EXPECT_FAILURE)
+    );
+  }
+
+  function test_auth_nopw(request, data, ctx) {
+    dump("*** test_auth_nopw()\n");
+    Assert.ok(!request.nsIHttpChannel.requestSucceeded);
+    Assert.equal(request.status, NS_ERROR_ENTITY_CHANGED);
+
+    // Authentication + not working resume
+    var chan = make_channel(
+      "http://guest:guest@localhost:" +
+        httpserver.identity.primaryPort +
+        "/auth"
+    );
+    chan.nsIResumableChannel.resumeAt(1, entityID);
+    chan.notificationCallbacks = new Requestor();
+    chan.asyncOpen(new ChannelListener(test_auth, null, CL_EXPECT_FAILURE));
+  }
+  function test_auth(request, data, ctx) {
+    dump("*** test_auth()\n");
+    Assert.equal(request.status, NS_ERROR_NOT_RESUMABLE);
+    Assert.ok(request.nsIHttpChannel.responseStatus < 300);
+
+    // Authentication + working resume
+    var chan = make_channel(
+      "http://guest:guest@localhost:" +
+        httpserver.identity.primaryPort +
+        "/range"
+    );
+    chan.nsIResumableChannel.resumeAt(1, entityID);
+    chan.notificationCallbacks = new Requestor();
+    chan.nsIHttpChannel.setRequestHeader("X-Need-Auth", "true", false);
+    chan.asyncOpen(new ChannelListener(test_auth_resume, null));
+  }
+
+  function test_auth_resume(request, data, ctx) {
+    dump("*** test_auth_resume()\n");
+    Assert.equal(data, rangeBody.substring(1));
+    Assert.ok(request.nsIHttpChannel.requestSucceeded);
+
+    // 404 page (same content length as real content)
+    var chan = make_channel(URL + "/range");
+    chan.nsIResumableChannel.resumeAt(1, entityID);
+    chan.nsIHttpChannel.setRequestHeader("X-Want-404", "true", false);
+    chan.asyncOpen(new ChannelListener(test_404, null, CL_EXPECT_FAILURE));
+  }
+
+  function test_404(request, data, ctx) {
+    dump("*** test_404()\n");
+    Assert.equal(request.status, NS_ERROR_ENTITY_CHANGED);
+    Assert.equal(request.nsIHttpChannel.responseStatus, 404);
+
+    // 416 Requested Range Not Satisfiable
+    var chan = make_channel(URL + "/range");
+    chan.nsIResumableChannel.resumeAt(1000, entityID);
+    chan.asyncOpen(new ChannelListener(test_416, null, CL_EXPECT_FAILURE));
+  }
+
+  function test_416(request, data, ctx) {
+    dump("*** test_416()\n");
+    Assert.equal(request.status, NS_ERROR_ENTITY_CHANGED);
+    Assert.equal(request.nsIHttpChannel.responseStatus, 416);
+
+    // Redirect + successful resume
+    var chan = make_channel(URL + "/redir");
+    chan.nsIHttpChannel.setRequestHeader("X-Redir-To", URL + "/range", false);
+    chan.nsIResumableChannel.resumeAt(1, entityID);
+    chan.asyncOpen(new ChannelListener(test_redir_resume, null));
+  }
+
+  function test_redir_resume(request, data, ctx) {
+    dump("*** test_redir_resume()\n");
+    Assert.ok(request.nsIHttpChannel.requestSucceeded);
+    Assert.equal(data, rangeBody.substring(1));
+    Assert.equal(request.nsIHttpChannel.responseStatus, 206);
+
+    // Redirect + failed resume
+    var chan = make_channel(URL + "/redir");
+    chan.nsIHttpChannel.setRequestHeader("X-Redir-To", URL + "/", false);
+    chan.nsIResumableChannel.resumeAt(1, entityID);
+    chan.asyncOpen(
+      new ChannelListener(test_redir_noresume, null, CL_EXPECT_FAILURE)
+    );
+  }
+
+  function test_redir_noresume(request, data, ctx) {
+    dump("*** test_redir_noresume()\n");
+    Assert.equal(request.status, NS_ERROR_NOT_RESUMABLE);
+
+    httpserver.stop(do_test_finished);
+  }
+
+  httpserver.start(-1);
+  var chan = make_channel(URL + "/range");
+  chan.asyncOpen(new ChannelListener(get_entity_id, null));
+  do_test_pending();
+}
+
+// HANDLERS
+
+function handleAuth(metadata, response) {
+  // btoa("guest:guest"), but that function is not available here
+  var expectedHeader = "Basic Z3Vlc3Q6Z3Vlc3Q=";
+
+  if (
+    metadata.hasHeader("Authorization") &&
+    metadata.getHeader("Authorization") == expectedHeader
+  ) {
+    response.setStatusLine(metadata.httpVersion, 200, "OK, authorized");
+    response.setHeader("WWW-Authenticate", 'Basic realm="secret"', false);
+
+    return true;
+  }
+  // didn't know guest:guest, failure
+  response.setStatusLine(metadata.httpVersion, 401, "Unauthorized");
+  response.setHeader("WWW-Authenticate", 'Basic realm="secret"', false);
+  return false;
+}
+
+// /auth
+function authHandler(metadata, response) {
+  response.setHeader("Content-Type", "text/html", false);
+  var body = handleAuth(metadata, response) ? "success" : "failure";
+  response.bodyOutputStream.write(body, body.length);
+}
+
+// /range
+function rangeHandler(metadata, response) {
+  response.setHeader("Content-Type", "text/html", false);
+
+  if (metadata.hasHeader("X-Need-Auth")) {
+    if (!handleAuth(metadata, response)) {
+      body = "auth failed";
+      response.bodyOutputStream.write(body, body.length);
+      return;
+    }
+  }
+
+  if (metadata.hasHeader("X-Want-404")) {
+    response.setStatusLine(metadata.httpVersion, 404, "Not Found");
+    body = rangeBody;
+    response.bodyOutputStream.write(body, body.length);
+    return;
+  }
+
+  var body = rangeBody;
+
+  if (metadata.hasHeader("Range")) {
+    // Syntax: bytes=[from]-[to] (we don't support multiple ranges)
+    var matches = metadata
+      .getHeader("Range")
+      .match(/^\s*bytes=(\d+)?-(\d+)?\s*$/);
+    var from = matches[1] === undefined ? 0 : matches[1];
+    var to = matches[2] === undefined ? rangeBody.length - 1 : matches[2];
+    if (from >= rangeBody.length) {
+      response.setStatusLine(metadata.httpVersion, 416, "Start pos too high");
+      response.setHeader("Content-Range", "*/" + rangeBody.length, false);
+      return;
+    }
+    body = body.substring(from, to + 1);
+    // always respond to successful range requests with 206
+    response.setStatusLine(metadata.httpVersion, 206, "Partial Content");
+    response.setHeader(
+      "Content-Range",
+      from + "-" + to + "/" + rangeBody.length,
+      false
+    );
+  }
+
+  response.bodyOutputStream.write(body, body.length);
+}
+
+// /acceptranges
+function acceptRangesHandler(metadata, response) {
+  response.setHeader("Content-Type", "text/html", false);
+  if (metadata.hasHeader("X-Range-Type")) {
+    response.setHeader(
+      "Accept-Ranges",
+      metadata.getHeader("X-Range-Type"),
+      false
+    );
+  }
+  response.bodyOutputStream.write(rangeBody, rangeBody.length);
+}
+
+// /redir
+function redirHandler(metadata, response) {
+  response.setStatusLine(metadata.httpVersion, 302, "Found");
+  response.setHeader("Content-Type", "text/html", false);
+  response.setHeader("Location", metadata.getHeader("X-Redir-To"), false);
+  var body = "redirect\r\n";
+  response.bodyOutputStream.write(body, body.length);
+}