Keep only base/extractor.[cc|h].

net/browser_request.cc

-// Copyright 2007-2009 Google Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//      http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-// ========================================================================
-//
-// Not used at the moment. The idea is to use an external process, such as
-// the web browser in cases where GoogleUpdate.exe is not able to connect
-// directly for some reason.
-//
-// TODO(Omaha) - Better algorithm for finding IBrowserHttpRequest2 objects:
-// We currently use shared memory. We have the high integrity process
-// read from shared memory that the low integrity process writes to. We assume
-// a common executable, IEXPLORE.exe, which is limiting, because in the future
-// we could be embedded in multiple processes.
-
-// Another choice for detection will be more efficient overall. But it will
-// entail some work: each IBrowserRequest will register itself with the ROT.
-// It does this through a medium-integrity GoogleUpdate.exe. The high integrity
-// process will then impersonate the explorer token, and then CoCreate
-// GoogleUpdate.exe at medium integrity. Then the medium integrity GoogleUpdate
-// can return an appropriate IBrowserRequest interface from the local ROT.
-//
-// This scheme is flexible enough that it can work regardless of which
-// process the IBrowserRequest object(s) reside in. We could have a Firefox
-// plugin, a Chrome-resident object, an object residing inside Google Talk, etc.
-
-#include "omaha/net/browser_request.h"
-#include <atlbase.h>
-#include <atlcom.h>
-#include "omaha/base/logging.h"
-#include "omaha/base/system.h"
-#include "omaha/base/vista_utils.h"
-#include "omaha/goopdate/google_update_proxy.h"
-
-namespace omaha {
-
-BrowserRequest::BrowserRequest() {
-  NET_LOG(L3, (_T("[BrowserRequest::BrowserRequest]")));
-  user_agent_.Format(_T("%s;iexplore"), NetworkConfig::GetUserAgent());
-
-#if 0
-  if (!GetAvailableBrowserObjects()) {
-    NET_LOG(LW, (_T("[BrowserRequest: No Browser Objects Found.]")));
-  }
-#endif
-}
-
-bool BrowserRequest::GetAvailableBrowserObjects() {
-  std::vector<uint32> pids;
-  HRESULT hr = vista::GetProcessPidsForActiveUserOrSession(kIExplore, &pids);
-  if (FAILED(hr)) {
-    NET_LOG(LE, (_T("[GetProcessPidsForActiveUserOrSession fail][0x%x]"), hr));
-    return false;
-  }
-
-  bool is_system = false;
-  hr = IsSystemProcess(&is_system);
-  if (FAILED(hr)) {
-    NET_LOG(LE, (_T("[IsSystemProcess failed][0x%x]"), hr));
-    return false;
-  }
-
-  CString shared_memory_prefix;
-  DWORD active_session = System::GetActiveSessionId();
-  if (is_system && active_session != System::GetCurrentSessionId()) {
-    // The Session\\ syntax references a local object in a different session.
-    shared_memory_prefix.Format(_T("Session\\%d\\"), active_session);
-  }
-  shared_memory_prefix += kBrowserHttpRequestShareName;
-
-  std::vector<uint32>::const_iterator iter = pids.begin();
-  for (; iter != pids.end(); ++iter) {
-    uint32 pid = *iter;
-    CString shared_memory_name;
-    shared_memory_name = shared_memory_prefix;
-    shared_memory_name.AppendFormat(_T("%d"), pid);
-    SharedMemoryAttributes default_attributes(shared_memory_name,
-                                              CSecurityDesc());
-    SharedMemoryProxy<IBrowserHttpRequest2, FakeGLock> proxy_read(
-                                                           true,
-                                                           &default_attributes);
-    CComPtr<IBrowserHttpRequest2> browser_http_request;
-    HRESULT hr = proxy_read.GetObject(&browser_http_request);
-    if (FAILED(hr) || !browser_http_request) {
-      NET_LOG(LW, (_T("[GetObject failed][%d][%d][0x%x]"),
-                   pid, browser_http_request, hr));
-      // Keep looking for more IBrowserHttpRequest2 objects.
-      continue;
-    }
-
-    objects_.push_back(browser_http_request);
-  }
-
-  return !objects_.empty();
-}
-
-HRESULT BrowserRequest::SendRequest(BSTR url,
-                                    BSTR post_data,
-                                    BSTR request_headers,
-                                    VARIANT response_headers_needed,
-                                    CComVariant* response_headers,
-                                    DWORD* response_code,
-                                    BSTR* cache_filename_bstr) {
-  NET_LOG(L3, (_T("[BrowserRequest::SendRequest]")));
-  if (objects_.empty()) {
-    NET_LOG(LE, (_T("[SendRequest: No Browser Objects available.]")));
-    return E_FAIL;
-  }
-
-  BrowserObjects::const_iterator i = objects_.begin();
-  HRESULT hr = E_UNEXPECTED;
-  CComBSTR cache_filename;
-  for (; i != objects_.end(); ++i) {
-    CComPtr<IBrowserHttpRequest2> browser_object(*i);
-    response_headers->Clear();
-    *response_code = 0;
-    cache_filename.Empty();
-    hr = browser_object->Send(url,
-                              post_data,
-                              request_headers,
-                              response_headers_needed,
-                              response_headers,
-                              response_code,
-                              &cache_filename);
-    NET_LOG(L3, (_T("[BrowserRequest::SendRequest][0x%x][%d][%s]"),
-                 hr, *response_code, cache_filename));
-
-    if (!*response_code) {
-      continue;
-    }
-
-    *cache_filename_bstr = cache_filename.Detach();
-    return S_OK;
-  }
-
-  return FAILED(hr) ? hr : E_UNEXPECTED;
-}
-
-}   // namespace omaha
-