cef/libcef/browser_devtools_scheme_han...

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// Copyright (c) 2011 The Chromium Embedded Framework Authors. All rights
// reserved. Use of this source code is governed by a BSD-style license that can
// be found in the LICENSE file.
#include "libcef/browser_devtools_scheme_handler.h"
#include <string>
#include "include/cef_browser.h"
#include "include/cef_request.h"
#include "include/cef_response.h"
#include "include/cef_scheme.h"
#include "include/cef_stream.h"
#include "include/cef_url.h"
#include "libcef/browser_webkit_glue.h"
#include "libcef/cef_context.h"
#include "base/file_util.h"
#include "base/string_util.h"
#include "grit/devtools_resources_map.h"
#include "net/base/mime_util.h"
#include "ui/base/resource/resource_bundle.h"
const char kChromeDevToolsScheme[] = "chrome-devtools";
const char kChromeDevToolsHost[] = "devtools";
const char kChromeDevToolsURL[] = "chrome-devtools://devtools/";
namespace {
class DevToolsSchemeHandler : public CefSchemeHandler {
public:
DevToolsSchemeHandler(const std::string& path,
CefRefPtr<CefStreamReader> reader,
int size)
: path_(path), reader_(reader), size_(size) {
}
virtual bool ProcessRequest(CefRefPtr<CefRequest> request,
CefRefPtr<CefSchemeHandlerCallback> callback)
OVERRIDE {
callback->HeadersAvailable();
return true;
}
virtual void GetResponseHeaders(CefRefPtr<CefResponse> response,
int64& response_length,
CefString& redirectUrl) OVERRIDE {
response_length = size_;
std::string mime_type = "text/plain";
if (net::GetMimeTypeFromFile(FilePath(CefString(path_)), &mime_type))
response->SetMimeType(mime_type);
response->SetStatus(200);
}
virtual bool ReadResponse(void* data_out,
int bytes_to_read,
int& bytes_read,
CefRefPtr<CefSchemeHandlerCallback> callback)
OVERRIDE {
bytes_read = reader_->Read(data_out, 1, bytes_to_read);
return (bytes_read > 0);
}
virtual void Cancel() OVERRIDE {
}
private:
std::string path_;
CefRefPtr<CefStreamReader> reader_;
int size_;
IMPLEMENT_REFCOUNTING(DevToolSSchemeHandler);
};
class DevToolsSchemeHandlerFactory : public CefSchemeHandlerFactory {
public:
DevToolsSchemeHandlerFactory() {}
virtual CefRefPtr<CefSchemeHandler> Create(CefRefPtr<CefBrowser> browser,
const CefString& scheme_name,
CefRefPtr<CefRequest> request)
OVERRIDE {
// Remove the query component of the URL, if any.
CefURLParts parts;
CefParseURL(request->GetURL(), parts);
cef_string_clear(&parts.spec);
cef_string_clear(&parts.query);
CefString urlStr;
CefCreateURL(parts, urlStr);
std::string url = urlStr;
const char* path = &url.c_str()[strlen(kChromeDevToolsURL)];
int size = -1;
CefRefPtr<CefStreamReader> reader = GetStreamReader(path, size);
if (!reader.get())
return NULL;
return new DevToolsSchemeHandler(path, reader, size);
}
CefRefPtr<CefStreamReader> GetStreamReader(const char* path, int& size) {
// Create a stream for the grit resource.
for (size_t i = 0; i < kDevtoolsResourcesSize; ++i) {
if (base::strcasecmp(kDevtoolsResources[i].name, path) == 0) {
base::StringPiece piece =
_Context->GetDataResource(kDevtoolsResources[i].value);
if (!piece.empty()) {
size = piece.size();
return CefStreamReader::CreateForData(const_cast<char*>(piece.data()),
size);
}
}
}
NOTREACHED() << "Missing DevTools resource: " << path;
return NULL;
}
IMPLEMENT_REFCOUNTING(DevToolSSchemeHandlerFactory);
};
} // namespace
// Register the DevTools scheme handler.
void RegisterDevToolsSchemeHandler(bool firstTime) {
if (firstTime)
CefRegisterCustomScheme(kChromeDevToolsScheme, true, false, true);
CefRegisterSchemeHandlerFactory(kChromeDevToolsScheme, kChromeDevToolsHost,
new DevToolsSchemeHandlerFactory());
}