How exactly is examples/resource_manager expected to behave

[Tonygeek]

Complete newbie here.
When I run resource_manager example I end up looking at 404 response from "https://example.com/" and that's it.
The breakpoint in OnRequest doesn't get hit:

Code: Select all

 bool OnRequest(scoped_refptr<CefResourceManager::Request> request) OVERRIDE {
    CEF_REQUIRE_IO_THREAD();

    const std::string& url = request->url(); // breakpoint here
    if (url != url_) {
      // Not handled by this provider.
      return false;
    }
 . . .


My expectation was that OnRequest gets called before any request to "https://example.com/" gets sent over the wire, IOW no external site gets hit with any request.
What am I truing to do? I want to feed local filesystem data in response to submitting a request to some nonexistent URL.

[magreenblatt]

You should see the CEF logo and the text "This HTML file and the above logo image were loaded using CefResourceManager." Did you follow the build instructions from https://bitbucket.org/chromiumembedded/cef-project?

[Tonygeek]

I take that back, sorry.
I just rebuilt the whole package from scratch, following the instructions at the link, and resource manager example behaves as you described.
What is not working is my attempt to use it. That is, I copied implementation from resource_manager example into my CEF client (a separate app that I created and which otherwise works fine) but I must have messed up something.

[Tonygeek]

I am having some conceptual difficulties here that I am unable to resolve by walking through the code in debugger.

When I run resource_manager example it behaves as described above.

However, if in debugger I skip over the code to add BinaryResourceProvider
( adding only the DumpResourceProvider) I also end up hitting https://examples.com website.

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// Add example Providers to the CefResourceManager.
void SetupResourceManager(CefRefPtr<CefResourceManager> resource_manager) {
  if (!CefCurrentlyOn(TID_IO)) {
    // Execute on the browser IO thread.
    CefPostTask(TID_IO, base::Bind(SetupResourceManager, resource_manager));
    return;
  }

  const std::string& test_origin = shared::kTestOrigin;

  // Add the Provider for dumping request contents.
  resource_manager->AddProvider(
      new RequestDumpResourceProvider(test_origin + "request.html"), 0,
      std::string());

// Add the Provider for bundled resource files.
#if defined(OS_WIN)
  // Read BINARY resources from the executable.   // !!!! I don't execute this code via moving the next step in debugger !!!
  resource_manager->AddProvider(
      shared::CreateBinaryResourceProvider(test_origin), 100, std::string());

But that is exactly what I want to do in my separate app. I don't care about serving any binary resources embedded in my app. I only want to intercept and modify the response from the specific fake URL, so that I can return the response that I want, in my case coming from the local file system, not from embedded resources.

Do I absolutely need to add binary resource provider on top of dump resource provider?

What am I missing?

[Tonygeek]

What I was missing is this code in my client:

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 CefRefPtr<CefRequestHandler> GetRequestHandler() OVERRIDE { return this; }

I know, pretty bad, but here in the hope that it may help someone copy/pasting resource manager example into his app.