[GCPW] Create bitmap version of profile picture used for reauth

- Linked agains gdi+ to use their image converting tools.
- Now when downloading the profile picture, the largest downloaded
picture will also be converted into .bmp and saved into the same
directory.
- Override the GetBitmapValue of the credential to read this bmp
file and return it.

Bug: 936847
Change-Id: Ie36b99e167c828ed7b46b88c400465f5fca44fd2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1497192
Commit-Queue: Tien Mai <tienmai@chromium.org>
Reviewed-by: Roger Tawa <rogerta@chromium.org>
Cr-Commit-Position: refs/heads/master@{#638212}

chrome/credential_provider/gaiacp/BUILD.gn

@@ -141,6 +141,7 @@ config("gaiacp_config") {
     "advapi32.lib",  # For LookupAccountSid()
     "credui.lib",  # For CredPackAuthenticationBufferW()
     "crypt32.lib",  # For CryptProtectData()
+    "gdiplus.lib",  # To convert profile pictures to bmp.
     "netapi32.lib",  # For NetUserXXX()
     "userenv.lib",  # For GetUserProfileDirectoryW()
     "winhttp.lib",  # For WinHttpXXX()

chrome/credential_provider/gaiacp/gaia_credential_base.cc

@@ -590,6 +590,23 @@ HRESULT CGaiaCredentialBase::GetStringValueImpl(DWORD field_id,
   return hr;
 }
 
+HRESULT CGaiaCredentialBase::GetBitmapValueImpl(DWORD field_id,
+                                                HBITMAP* phbmp) {
+  HRESULT hr = E_INVALIDARG;
+  switch (field_id) {
+    case FID_PROVIDER_LOGO:
+      *phbmp = ::LoadBitmap(CURRENT_MODULE(),
+                            MAKEINTRESOURCE(IDB_GOOGLE_LOGO_SMALL));
+      if (*phbmp)
+        hr = S_OK;
+      break;
+    default:
+      break;
+  }
+
+  return hr;
+}
+
 void CGaiaCredentialBase::ResetInternalState() {
   LOGFN(INFO);
   username_.Empty();
@@ -910,19 +927,7 @@ HRESULT CGaiaCredentialBase::GetStringValue(DWORD field_id, wchar_t** value) {
 }
 
 HRESULT CGaiaCredentialBase::GetBitmapValue(DWORD field_id, HBITMAP* phbmp) {
-  HRESULT hr = E_INVALIDARG;
-  switch (field_id) {
-    case FID_PROVIDER_LOGO:
-      *phbmp = ::LoadBitmap(CURRENT_MODULE(),
-                            MAKEINTRESOURCE(IDB_GOOGLE_LOGO_SMALL));
-      if (*phbmp)
-        hr = S_OK;
-      break;
-    default:
-      break;
-  }
-
-  return hr;
+  return GetBitmapValueImpl(field_id, phbmp);
 }
 
 HRESULT CGaiaCredentialBase::GetCheckboxValue(DWORD field_id,

chrome/credential_provider/gaiacp/gaia_credential_base.h

@@ -125,6 +125,10 @@ class ATL_NO_VTABLE CGaiaCredentialBase
   // Gets the string value for the given credential UI field.
   virtual HRESULT GetStringValueImpl(DWORD field_id, wchar_t** value);
 
+  // Can be overridden to change the icon used for anonymous tiles when they are
+  // shown in the selection list on the side and when they are selected.
+  virtual HRESULT GetBitmapValueImpl(DWORD field_id, HBITMAP* phbmp);
+
   // Resets the state of the credential, forgetting any username or password
   // that may have been set previously.  Derived classes may override to
   // perform more state resetting if needed, but should always call the base

chrome/credential_provider/gaiacp/gcp_utils.cc

@@ -9,9 +9,10 @@
 #include <winternl.h>
 
 #define _NTDEF_  // Prevent redefition errors, must come after <winternl.h>
-#include <ntsecapi.h>         // For LsaLookupAuthenticationPackage()
-#include <sddl.h>             // For ConvertSidToStringSid()
-#include <security.h>         // For NEGOSSP_NAME_A
+#include <ntsecapi.h>  // For LsaLookupAuthenticationPackage()
+#include <sddl.h>      // For ConvertSidToStringSid()
+#include <security.h>  // For NEGOSSP_NAME_A
+#include <shlobj.h>    // For SHGetKnownFolderPath()
 #include <wbemidl.h>
 
 #include <atlbase.h>
@@ -45,6 +46,9 @@
 
 namespace credential_provider {
 
+const wchar_t kDefaultProfilePictureFileExtension[] = L".jpg";
+const wchar_t kCredentialLogoPictureFileExtension[] = L".bmp";
+
 namespace {
 
 constexpr char kSentinelFilename[] = "gcpw_startup.sentinel";
@@ -634,6 +638,29 @@ base::string16 GetStringResource(int base_message_id) {
   return localized_string;
 }
 
+HRESULT GetUserAccountPicturePath(const base::string16& sid,
+                                  base::FilePath* base_path) {
+  DCHECK(base_path);
+  base_path->clear();
+  LPWSTR path;
+  HRESULT hr = ::SHGetKnownFolderPath(FOLDERID_PublicUserTiles, 0, NULL, &path);
+  if (FAILED(hr)) {
+    LOGFN(ERROR) << "SHGetKnownFolderPath=" << putHR(hr);
+    return hr;
+  }
+  *base_path = base::FilePath(path).Append(sid);
+  ::CoTaskMemFree(path);
+  return S_OK;
+}
+
+base::FilePath GetUserSizedAccountPictureFilePath(
+    const base::FilePath& account_picture_path,
+    int size,
+    const base::string16& picture_extension) {
+  return account_picture_path.Append(base::StringPrintf(
+      L"GoogleAccountPicture_%i%ls", size, picture_extension.c_str()));
+}
+
 base::string16 GetSelectedLanguage() {
   return GetLanguageSelector().matched_candidate();
 }

chrome/credential_provider/gaiacp/gcp_utils.h

@@ -54,6 +54,17 @@ constexpr int kMaxUsernameAttempts = 10;
 // already exists.
 constexpr int kInitialDuplicateUsernameIndex = 2;
 
+// Default extension used as a fallback if the picture_url returned from gaia
+// does not have a file extension.
+extern const wchar_t kDefaultProfilePictureFileExtension[];
+
+// Required extension for the picture that will be shown by the credential on
+// the login screen. Windows only supports .bmp files for the images shown by
+// credentials.
+extern const wchar_t kCredentialLogoPictureFileExtension[];
+
+constexpr int kLargestProfilePictureSize = 448;
+
 // Because of some strange dependency problems with windows header files,
 // define STATUS_SUCCESS here instead of including ntstatus.h or SubAuth.h
 #define STATUS_SUCCESS ((NTSTATUS)0x00000000L)
@@ -200,6 +211,20 @@ void DeleteStartupSentinel();
 // Gets a string resource from the DLL with the given id.
 base::string16 GetStringResource(int base_message_id);
 
+// Fills |base_path| with the path where user profile pictures are stored for
+// user with |sid|. This function can fail if the known folder
+// FOLDERID_PublicUserTiles cannot be found.
+HRESULT GetUserAccountPicturePath(const base::string16& sid,
+                                  base::FilePath* base_path);
+
+// Returns the full path to a user profile picture of a specific |size| and
+// |picture_extension|. |account_picture_path| is path filled in by a call to
+// GetUserAccountPicturePath.
+base::FilePath GetUserSizedAccountPictureFilePath(
+    const base::FilePath& account_picture_path,
+    int size,
+    const base::string16& picture_extension);
+
 // Gets the language selected by the base::win::i18n::LanguageSelector.
 base::string16 GetSelectedLanguage();
 

chrome/credential_provider/gaiacp/reauth_credential_anonymous.cc

@@ -4,8 +4,12 @@
 
 #include "chrome/credential_provider/gaiacp/reauth_credential_anonymous.h"
 
+#include "base/files/file_util.h"
+#include "chrome/credential_provider/common/gcp_strings.h"
+#include "chrome/credential_provider/gaiacp/gcp_utils.h"
 #include "chrome/credential_provider/gaiacp/logging.h"
 #include "chrome/credential_provider/gaiacp/os_user_manager.h"
+#include "chrome/credential_provider/gaiacp/reg_utils.h"
 
 namespace credential_provider {
 
@@ -37,4 +41,37 @@ HRESULT CReauthCredentialAnonymous::GetStringValueImpl(DWORD field_id,
   return ::SHStrDupW(fullname.c_str(), value);
 }
 
+HRESULT CReauthCredentialAnonymous::GetBitmapValueImpl(DWORD field_id,
+                                                       HBITMAP* phbmp) {
+  if (field_id == FID_PROVIDER_LOGO) {
+    base::FilePath account_picture_path;
+    HRESULT hr = GetUserAccountPicturePath(OLE2W(get_os_user_sid()),
+                                           &account_picture_path);
+    if (SUCCEEDED(hr)) {
+      base::FilePath target_picture_path = GetUserSizedAccountPictureFilePath(
+          account_picture_path, kLargestProfilePictureSize,
+          kCredentialLogoPictureFileExtension);
+
+      if (base::PathExists(target_picture_path)) {
+        *phbmp = static_cast<HBITMAP>(
+            ::LoadImage(nullptr, target_picture_path.value().c_str(),
+                        IMAGE_BITMAP, 0, 0, LR_LOADFROMFILE));
+        if (*phbmp) {
+          return S_OK;
+        } else {
+          hr = HRESULT_FROM_WIN32(::GetLastError());
+          LOGFN(ERROR) << "Failed load image at='"
+                       << target_picture_path.value() << "' hr=" << putHR(hr);
+        }
+      } else {
+        LOGFN(ERROR) << "Required picture at='" << target_picture_path.value()
+                     << "' does not exist.";
+      }
+    } else {
+      LOGFN(ERROR) << "Failed to get account picture known folder hr="
+                   << putHR(hr);
+    }
+  }
+  return CReauthCredentialBase::GetBitmapValueImpl(field_id, phbmp);
+}
 }  // namespace credential_provider

chrome/credential_provider/gaiacp/reauth_credential_anonymous.h

@@ -39,6 +39,7 @@ class ATL_NO_VTABLE CReauthCredentialAnonymous
   DECLARE_PROTECT_FINAL_CONSTRUCT()
 
   HRESULT GetStringValueImpl(DWORD field_id, wchar_t** value) override;
+  HRESULT GetBitmapValueImpl(DWORD field_id, HBITMAP* phbmp) override;
 };
 
 }  // namespace credential_provider