text: /*
   * Copyright 2012 Austin English
   * Copyright 2015 Michael Müller
   * Copyright 2015 Sebastian Lackner
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
   */
  
  #include <windows.h>
  #include <fcntl.h>
  #include <fdi.h>
  #include <shlwapi.h>
  
  #include "wine/debug.h"
  #include "wine/list.h"
  #include "wusa.h"
  
  WINE_DEFAULT_DEBUG_CHANNEL(wusa);
  
  struct strbuf
  {
      WCHAR *buf;
      DWORD pos;
      DWORD len;
  };
  
  struct installer_tempdir
  {
      struct list entry;
      WCHAR *path;
  };
  
  struct installer_state
  {
      BOOL norestart;
      BOOL quiet;
      struct list tempdirs;
      struct list assemblies;
      struct list updates;
  };
  
  static void * CDECL cabinet_alloc(ULONG cb)
  {
      return heap_alloc(cb);
  }
  
  static void CDECL cabinet_free(void *pv)
  {
      heap_free(pv);
  }
  
  static INT_PTR CDECL cabinet_open(char *pszFile, int oflag, int pmode)
  {
      DWORD dwAccess = 0;
      DWORD dwShareMode = 0;
      DWORD dwCreateDisposition = OPEN_EXISTING;
  
      switch (oflag & _O_ACCMODE)
      {
      case _O_RDONLY:
          dwAccess = GENERIC_READ;
          dwShareMode = FILE_SHARE_READ | FILE_SHARE_DELETE;
          break;
      case _O_WRONLY:
          dwAccess = GENERIC_WRITE;
          dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
          break;
      case _O_RDWR:
          dwAccess = GENERIC_READ | GENERIC_WRITE;
          dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE;
          break;
      }
  
      if ((oflag & (_O_CREAT | _O_EXCL)) == (_O_CREAT | _O_EXCL))
          dwCreateDisposition = CREATE_NEW;
      else if (oflag & _O_CREAT)
          dwCreateDisposition = CREATE_ALWAYS;
  
      return (INT_PTR)CreateFileA(pszFile, dwAccess, dwShareMode, NULL, dwCreateDisposition, 0, NULL);
  }
  
  static UINT CDECL cabinet_read(INT_PTR hf, void *pv, UINT cb)
  {
      HANDLE handle = (HANDLE)hf;
      DWORD read;
  
      if (ReadFile(handle, pv, cb, &read, NULL))
          return read;
  
      return 0;
  }
  
  static UINT CDECL cabinet_write(INT_PTR hf, void *pv, UINT cb)
  {
      HANDLE handle = (HANDLE)hf;
      DWORD written;
  
      if (WriteFile(handle, pv, cb, &written, NULL))
          return written;
  
      return 0;
  }
  
  static int CDECL cabinet_close(INT_PTR hf)
  {
      HANDLE handle = (HANDLE)hf;
      return CloseHandle(handle) ? 0 : -1;
  }
  
  static LONG CDECL cabinet_seek(INT_PTR hf, LONG dist, int seektype)
  {
      HANDLE handle = (HANDLE)hf;
      /* flags are compatible and so are passed straight through */
      return SetFilePointer(handle, dist, NULL, seektype);
  }
  
  static WCHAR *path_combine(const WCHAR *path, const WCHAR *filename)
  {
      WCHAR *result;
      DWORD length;
  
      if (!path || !filename) return NULL;
      length = lstrlenW(path) + lstrlenW(filename) + 2;
      if (!(result = heap_alloc(length * sizeof(WCHAR)))) return NULL;
  
      lstrcpyW(result, path);
      if (result[0] && result[lstrlenW(result) - 1] != '\\') lstrcatW(result, L"\\");
      lstrcatW(result, filename);
      return result;
  }
  
  static WCHAR *get_uncompressed_path(PFDINOTIFICATION pfdin)
  {
      WCHAR *file = strdupAtoW(pfdin->psz1);
      WCHAR *path = path_combine(pfdin->pv, file);
      heap_free(file);
      return path;
  }
  
  static BOOL is_directory(const WCHAR *path)
  {
      DWORD attrs = GetFileAttributesW(path);
      if (attrs == INVALID_FILE_ATTRIBUTES) return FALSE;
      return (attrs & FILE_ATTRIBUTE_DIRECTORY) != 0;
  }
  
  static BOOL create_directory(const WCHAR *path)
  {
      if (is_directory(path)) return TRUE;
      if (CreateDirectoryW(path, NULL)) return TRUE;
      return (GetLastError() == ERROR_ALREADY_EXISTS);
  }
  
  static BOOL create_parent_directory(const WCHAR *filename)
  {
      WCHAR *p, *path = strdupW(filename);
      BOOL ret = FALSE;
  
      if (!path) return FALSE;
      if (!PathRemoveFileSpecW(path)) goto done;
      if (is_directory(path))
      {
          ret = TRUE;
          goto done;
      }
  
      for (p = path; *p; p++)
      {
          if (*p != '\\') continue;
          *p = 0;
          if (!create_directory(path)) goto done;
          *p = '\\';
      }
      ret = create_directory(path);
  
  done:
      heap_free(path);
      return ret;
  }
  
  static INT_PTR cabinet_copy_file(FDINOTIFICATIONTYPE fdint, PFDINOTIFICATION pfdin)
  {
      HANDLE handle = INVALID_HANDLE_VALUE;
      WCHAR *file;
      DWORD attrs;
  
      if (!(file = get_uncompressed_path(pfdin)))
          return -1;
  
      TRACE("Extracting %s -> %s\n", debugstr_a(pfdin->psz1), debugstr_w(file));
  
      if (create_parent_directory(file))
      {
          attrs = pfdin->attribs;
          if (!attrs) attrs = FILE_ATTRIBUTE_NORMAL;
          handle = CreateFileW(file, GENERIC_READ | GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, attrs, NULL);
      }
  
      heap_free(file);
      return (handle != INVALID_HANDLE_VALUE) ? (INT_PTR)handle : -1;
  }
  
  static INT_PTR cabinet_close_file_info(FDINOTIFICATIONTYPE fdint, PFDINOTIFICATION pfdin)
  {
      HANDLE handle = (HANDLE)pfdin->hf;
      CloseHandle(handle);
      return 1;
  }
  
  static INT_PTR CDECL cabinet_notify(FDINOTIFICATIONTYPE fdint, PFDINOTIFICATION pfdin)
  {
      switch (fdint)
      {
      case fdintPARTIAL_FILE:
          FIXME("fdintPARTIAL_FILE not implemented\n");
          return 0;
  
      case fdintNEXT_CABINET:
          FIXME("fdintNEXT_CABINET not implemented\n");
          return 0;
  
      case fdintCOPY_FILE:
          return cabinet_copy_file(fdint, pfdin);
  
      case fdintCLOSE_FILE_INFO:
          return cabinet_close_file_info(fdint, pfdin);
  
      default:
          return 0;
      }
  }
  
  static BOOL extract_cabinet(const WCHAR *filename, const WCHAR *destination)
  {
      char *filenameA = NULL;
      BOOL ret = FALSE;
      HFDI hfdi;
      ERF erf;
  
      hfdi = FDICreate(cabinet_alloc, cabinet_free, cabinet_open, cabinet_read,
                       cabinet_write, cabinet_close, cabinet_seek, 0, &erf);
      if (!hfdi) return FALSE;
  
      if ((filenameA = strdupWtoA(filename)))
      {
          ret = FDICopy(hfdi, filenameA, NULL, 0, cabinet_notify, NULL, (void *)destination);
          heap_free(filenameA);
      }
  
      FDIDestroy(hfdi);
      return ret;
  }
  
  static const WCHAR *create_temp_directory(struct installer_state *state)
  {
      static UINT id;
      struct installer_tempdir *entry;
      WCHAR tmp[MAX_PATH];
  
      if (!GetTempPathW(ARRAY_SIZE(tmp), tmp)) return NULL;
      if (!(entry = heap_alloc(sizeof(*entry)))) return NULL;
      if (!(entry->path = heap_alloc((MAX_PATH + 20) * sizeof(WCHAR))))
      {
          heap_free(entry);
          return NULL;
      }
      for (;;)
      {
          if (!GetTempFileNameW(tmp, L"msu", ++id, entry->path))
          {
              heap_free(entry->path);
              heap_free(entry);
              return NULL;
          }
          if (CreateDirectoryW(entry->path, NULL)) break;
      }
  
      list_add_tail(&state->tempdirs, &entry->entry);
      return entry->path;
  }
  
  static BOOL delete_directory(const WCHAR *path)
  {
      WIN32_FIND_DATAW data;
      WCHAR *full_path;
      HANDLE search;
  
      if (!(full_path = path_combine(path, L"*"))) return FALSE;
      search = FindFirstFileW(full_path, &data);
      heap_free(full_path);
  
      if (search != INVALID_HANDLE_VALUE)
      {
          do
          {
              if (!wcscmp(data.cFileName, L".")) continue;
              if (!wcscmp(data.cFileName, L"..")) continue;
              if (!(full_path = path_combine(path, data.cFileName))) continue;
              if (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
                  delete_directory(full_path);
              else
                  DeleteFileW(full_path);
              heap_free(full_path);
          }
          while (FindNextFileW(search, &data));
          FindClose(search);
      }
  
      return RemoveDirectoryW(path);
  }
  
  static void installer_cleanup(struct installer_state *state)
  {
      struct installer_tempdir *tempdir, *tempdir2;
      struct assembly_entry *assembly, *assembly2;
      struct dependency_entry *dependency, *dependency2;
  
      LIST_FOR_EACH_ENTRY_SAFE(tempdir, tempdir2, &state->tempdirs, struct installer_tempdir, entry)
      {
          list_remove(&tempdir->entry);
          delete_directory(tempdir->path);
          heap_free(tempdir->path);
          heap_free(tempdir);
      }
      LIST_FOR_EACH_ENTRY_SAFE(assembly, assembly2, &state->assemblies, struct assembly_entry, entry)
      {
          list_remove(&assembly->entry);
          free_assembly(assembly);
      }
      LIST_FOR_EACH_ENTRY_SAFE(dependency, dependency2, &state->updates, struct dependency_entry, entry)
      {
          list_remove(&dependency->entry);
          free_dependency(dependency);
      }
  }
  
  static BOOL str_ends_with(const WCHAR *str, const WCHAR *suffix)
  {
      DWORD str_len = lstrlenW(str), suffix_len = lstrlenW(suffix);
      if (suffix_len > str_len) return FALSE;
      return !wcsicmp(str + str_len - suffix_len, suffix);
  }
  
  static BOOL load_assemblies_from_cab(const WCHAR *filename, struct installer_state *state)
  {
      struct assembly_entry *assembly;
      const WCHAR *temp_path;
      WIN32_FIND_DATAW data;
      HANDLE search;
      WCHAR *path;
  
      TRACE("Processing cab file %s\n", debugstr_w(filename));
  
      if (!(temp_path = create_temp_directory(state))) return FALSE;
      if (!extract_cabinet(filename, temp_path))
      {
          ERR("Failed to extract %s\n", debugstr_w(filename));
          return FALSE;
      }
  
      if (!(path = path_combine(temp_path, L"_manifest_.cix.xml"))) return FALSE;
      if (GetFileAttributesW(path) != INVALID_FILE_ATTRIBUTES)
      {
          FIXME("Cabinet uses proprietary msdelta file compression which is not (yet) supported\n");
          FIXME("Installation of msu file will most likely fail\n");
      }
      heap_free(path);
  
      if (!(path = path_combine(temp_path, L"*"))) return FALSE;
      search = FindFirstFileW(path, &data);
      heap_free(path);
  
      if (search != INVALID_HANDLE_VALUE)
      {
          do
          {
              if (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) continue;
              if (!str_ends_with(data.cFileName, L".manifest") &&
                  !str_ends_with(data.cFileName, L".mum")) continue;
              if (!(path = path_combine(temp_path, data.cFileName))) continue;
              if ((assembly = load_manifest(path)))
                  list_add_tail(&state->assemblies, &assembly->entry);
              heap_free(path);
          }
          while (FindNextFileW(search, &data));
          FindClose(search);
      }
  
      return TRUE;
  }
  
  static BOOL compare_assembly_string(const WCHAR *str1, const WCHAR *str2)
  {
      return !wcscmp(str1, str2) || !wcscmp(str1, L"*") || !wcscmp(str2, L"*");
  }
  
  static struct assembly_entry *lookup_assembly(struct list *manifest_list, struct assembly_identity *identity)
  {
      struct assembly_entry *assembly;
  
      LIST_FOR_EACH_ENTRY(assembly, manifest_list, struct assembly_entry, entry)
      {
          if (wcsicmp(assembly->identity.name, identity->name)) continue;
          if (!compare_assembly_string(assembly->identity.architecture, identity->architecture)) continue;
          if (!compare_assembly_string(assembly->identity.language, identity->language)) continue;
          if (!compare_assembly_string(assembly->identity.pubkey_token, identity->pubkey_token)) continue;
          if (!compare_assembly_string(assembly->identity.version, identity->version))
          {
              WARN("Ignoring version difference for %s (expected %s, found %s)\n",
                   debugstr_w(identity->name), debugstr_w(identity->version), debugstr_w(assembly->identity.version));
          }
          return assembly;
      }
  
      return NULL;
  }
  
  static WCHAR *get_assembly_source(struct assembly_entry *assembly)
  {
      WCHAR *p, *path = strdupW(assembly->filename);
      if (path && (p = wcsrchr(path, '.'))) *p = 0;
      return path;
  }
  
  static BOOL strbuf_init(struct strbuf *buf)
  {
      buf->pos = 0;
      buf->len = 64;
      buf->buf = heap_alloc(buf->len * sizeof(WCHAR));
      return buf->buf != NULL;
  }
  
  static void strbuf_free(struct strbuf *buf)
  {
      heap_free(buf->buf);
      buf->buf = NULL;
  }
  
  static BOOL strbuf_append(struct strbuf *buf, const WCHAR *str, DWORD len)
  {
      DWORD new_len;
      WCHAR *new_buf;
  
      if (!buf->buf) return FALSE;
      if (!str) return TRUE;
  
      if (len == ~0U) len = lstrlenW(str);
      if (buf->pos + len + 1 > buf->len)
      {
          new_len = max(buf->pos + len + 1, buf->len * 2);
          new_buf = heap_realloc(buf->buf, new_len * sizeof(WCHAR));
          if (!new_buf)
          {
              strbuf_free(buf);
              return FALSE;
          }
          buf->buf = new_buf;
          buf->len = new_len;
      }
  
      memcpy(&buf->buf[buf->pos], str, len * sizeof(WCHAR));
      buf->buf[buf->pos + len] = 0;
      buf->pos += len;
      return TRUE;
  }
  
  static WCHAR *lookup_expression(struct assembly_entry *assembly, const WCHAR *key)
  {
      WCHAR path[MAX_PATH];
  
      if (!wcscmp(key, L"runtime.system32"))
      {
  #ifdef __x86_64__
          if (!wcscmp(assembly->identity.architecture, L"x86"))
          {
              GetSystemWow64DirectoryW(path, ARRAY_SIZE(path));
              return strdupW(path);
          }
  #endif
          GetSystemDirectoryW(path, ARRAY_SIZE(path));
          return strdupW(path);
      }
      if (!wcscmp(key, L"runtime.windows"))
      {
          GetWindowsDirectoryW(path, ARRAY_SIZE(path));
          return strdupW(path);
      }
  
      FIXME("Unknown expression %s\n", debugstr_w(key));
      return NULL;
  }
  
  static WCHAR *expand_expression(struct assembly_entry *assembly, const WCHAR *expression)
  {
      const WCHAR *pos, *next;
      WCHAR *key, *value;
      struct strbuf buf;
  
      if (!expression || !strbuf_init(&buf)) return NULL;
  
      for (pos = expression; (next = wcsstr(pos, L"$(")); pos = next + 1)
      {
          strbuf_append(&buf, pos, next - pos);
          pos = next + 2;
          if (!(next = wcsstr(pos, L")")))
          {
              strbuf_append(&buf, L"$(", 2);
              break;
          }
  
          if (!(key = strdupWn(pos, next - pos))) goto error;
          value = lookup_expression(assembly, key);
          heap_free(key);
          if (!value) goto error;
          strbuf_append(&buf, value, ~0U);
          heap_free(value);
      }
  
      strbuf_append(&buf, pos, ~0U);
      return buf.buf;
  
  error:
      FIXME("Couldn't resolve expression %s\n", debugstr_w(expression));
      strbuf_free(&buf);
      return NULL;
  }
  
  static BOOL install_files_copy(struct assembly_entry *assembly, const WCHAR *source_path, struct fileop_entry *fileop, BOOL dryrun)
  {
      WCHAR *target_path, *target, *source = NULL;
      BOOL ret = FALSE;
  
      if (!(target_path = expand_expression(assembly, fileop->target))) return FALSE;
      if (!(target = path_combine(target_path, fileop->source))) goto error;
      if (!(source = path_combine(source_path, fileop->source))) goto error;
  
      if (dryrun)
      {
          if (!(ret = PathFileExistsW(source)))
          {
              ERR("Required file %s not found\n", debugstr_w(source));
              goto error;
          }
      }
      else
      {
          TRACE("Copying %s -> %s\n", debugstr_w(source), debugstr_w(target));
  
          if (!create_parent_directory(target))
          {
              ERR("Failed to create parent directory for %s\n", debugstr_w(target));
              goto error;
          }
          if (!(ret = CopyFileExW(source, target, NULL, NULL, NULL, 0)))
          {
              ERR("Failed to copy %s to %s\n", debugstr_w(source), debugstr_w(target));
              goto error;
          }
      }
  
  error:
      heap_free(target_path);
      heap_free(target);
      heap_free(source);
      return ret;
  }
  
  static BOOL install_files(struct assembly_entry *assembly, BOOL dryrun)
  {
      struct fileop_entry *fileop;
      WCHAR *source_path;
      BOOL ret = TRUE;
  
      if (!(source_path = get_assembly_source(assembly)))
      {
          ERR("Failed to get assembly source directory\n");
          return FALSE;
      }
  
      LIST_FOR_EACH_ENTRY(fileop, &assembly->fileops, struct fileop_entry, entry)
      {
          if (!(ret = install_files_copy(assembly, source_path, fileop, dryrun))) break;
      }
  
      heap_free(source_path);
      return ret;
  }
  
  static WCHAR *split_registry_key(WCHAR *key, HKEY *root)
  {
      DWORD size;
      WCHAR *p;
  
      if (!(p = wcschr(key, '\\'))) return NULL;
      size = p - key;
  
      if (lstrlenW(L"HKEY_CLASSES_ROOT") == size && !wcsncmp(key, L"HKEY_CLASSES_ROOT", size))
          *root = HKEY_CLASSES_ROOT;
      else if (lstrlenW(L"HKEY_CURRENT_CONFIG") == size && !wcsncmp(key, L"HKEY_CURRENT_CONFIG", size))
          *root = HKEY_CURRENT_CONFIG;
      else if (lstrlenW(L"HKEY_CURRENT_USER") == size && !wcsncmp(key, L"HKEY_CURRENT_USER", size))
          *root = HKEY_CURRENT_USER;
      else if (lstrlenW(L"HKEY_LOCAL_MACHINE") == size && !wcsncmp(key, L"HKEY_LOCAL_MACHINE", size))
          *root = HKEY_LOCAL_MACHINE;
      else if (lstrlenW(L"HKEY_USERS") == size && !wcsncmp(key, L"HKEY_USERS", size))
          *root = HKEY_USERS;
      else
      {
          FIXME("Unknown root key %s\n", debugstr_wn(key, size));
          return NULL;
      }
  
      return p + 1;
  }
  
  static BOOL install_registry_string(struct assembly_entry *assembly, HKEY key, struct registrykv_entry *registrykv, DWORD type, BOOL dryrun)
  {
      DWORD value_size;
      WCHAR *value = expand_expression(assembly, registrykv->value);
      BOOL ret = TRUE;
  
      if (registrykv->value && !value)
          return FALSE;
  
      value_size = value ? (lstrlenW(value) + 1) * sizeof(WCHAR) : 0;
      if (!dryrun && RegSetValueExW(key, registrykv->name, 0, type, (void *)value, value_size))
      {
          ERR("Failed to set registry key %s\n", debugstr_w(registrykv->name));
          ret = FALSE;
      }
  
      heap_free(value);
      return ret;
  }
  
  static WCHAR *parse_multisz(const WCHAR *input, DWORD *size)
  {
      const WCHAR *pos, *next;
      struct strbuf buf;
  
      *size = 0;
      if (!input || !input[0] || !strbuf_init(&buf)) return NULL;
  
      for (pos = input; pos[0] == '"'; pos++)
      {
          pos++;
          if (!(next = wcsstr(pos, L"\""))) goto error;
          strbuf_append(&buf, pos, next - pos);
          strbuf_append(&buf, L"", ARRAY_SIZE(L""));
  
          pos = next + 1;
          if (!pos[0]) break;
          if (pos[0] != ',')
          {
              FIXME("Error while parsing REG_MULTI_SZ string: Expected comma but got '%c'\n", pos[0]);
              goto error;
          }
      }
  
      if (pos[0])
      {
          FIXME("Error while parsing REG_MULTI_SZ string: Garbage at end of string\n");
          goto error;
      }
  
      strbuf_append(&buf, L"", ARRAY_SIZE(L""));
      *size = buf.pos * sizeof(WCHAR);
      return buf.buf;
  
  error:
      strbuf_free(&buf);
      return NULL;
  }
  
  static BOOL install_registry_multisz(struct assembly_entry *assembly, HKEY key, struct registrykv_entry *registrykv, BOOL dryrun)
  {
      DWORD value_size;
      WCHAR *value = parse_multisz(registrykv->value, &value_size);
      BOOL ret = TRUE;
  
      if (registrykv->value && registrykv->value[0] && !value)
          return FALSE;
  
      if (!dryrun && RegSetValueExW(key, registrykv->name, 0, REG_MULTI_SZ, (void *)value, value_size))
      {
          ERR("Failed to set registry key %s\n", debugstr_w(registrykv->name));
          ret = FALSE;
      }
  
      heap_free(value);
      return ret;
  }
  
  static BOOL install_registry_dword(struct assembly_entry *assembly, HKEY key, struct registrykv_entry *registrykv, BOOL dryrun)
  {
      DWORD value = registrykv->value_type ? wcstoul(registrykv->value_type, NULL, 16) : 0;
      BOOL ret = TRUE;
  
      if (!dryrun && RegSetValueExW(key, registrykv->name, 0, REG_DWORD, (void *)&value, sizeof(value)))
      {
          ERR("Failed to set registry key %s\n", debugstr_w(registrykv->name));
          ret = FALSE;
      }
  
      return ret;
  }
  
  static BYTE *parse_hex(const WCHAR *input, DWORD *size)
  {
      WCHAR number[3] = {0, 0, 0};
      BYTE *output, *p;
      int length;
  
      *size = 0;
      if (!input) return NULL;
      length = lstrlenW(input);
      if (length & 1) return NULL;
      length >>= 1;
  
      if (!(output = heap_alloc(length))) return NULL;
      for (p = output; *input; input += 2)
      {
          number[0] = input[0];
          number[1] = input[1];
          *p++ = wcstoul(number, 0, 16);
      }
      *size = length;
      return output;
  }
  
  static BOOL install_registry_binary(struct assembly_entry *assembly, HKEY key, struct registrykv_entry *registrykv, BOOL dryrun)
  {
      DWORD value_size;
      BYTE *value = parse_hex(registrykv->value, &value_size);
      BOOL ret = TRUE;
  
      if (registrykv->value && !value)
          return FALSE;
  
      if (!dryrun && RegSetValueExW(key, registrykv->name, 0, REG_BINARY, value, value_size))
      {
          ERR("Failed to set registry key %s\n", debugstr_w(registrykv->name));
          ret = FALSE;
      }
  
      heap_free(value);
      return ret;
  }
  
  static BOOL install_registry_value(struct assembly_entry *assembly, HKEY key, struct registrykv_entry *registrykv, BOOL dryrun)
  {
      TRACE("Setting registry key %s = %s\n", debugstr_w(registrykv->name), debugstr_w(registrykv->value));
  
      if (!wcscmp(registrykv->value_type, L"REG_SZ"))
          return install_registry_string(assembly, key, registrykv, REG_SZ, dryrun);
      if (!wcscmp(registrykv->value_type, L"REG_EXPAND_SZ"))
          return install_registry_string(assembly, key, registrykv, REG_EXPAND_SZ, dryrun);
      if (!wcscmp(registrykv->value_type, L"REG_MULTI_SZ"))
          return install_registry_multisz(assembly, key, registrykv, dryrun);
      if (!wcscmp(registrykv->value_type, L"REG_DWORD"))
          return install_registry_dword(assembly, key, registrykv, dryrun);
      if (!wcscmp(registrykv->value_type, L"REG_BINARY"))
          return install_registry_binary(assembly, key, registrykv, dryrun);
  
      FIXME("Unsupported registry value type %s\n", debugstr_w(registrykv->value_type));
      return FALSE;
  }
  
  static BOOL install_registry(struct assembly_entry *assembly, BOOL dryrun)
  {
      struct registryop_entry *registryop;
      struct registrykv_entry *registrykv;
      HKEY root, subkey;
      WCHAR *path;
      REGSAM sam = KEY_ALL_ACCESS;
      BOOL ret = TRUE;
  
  #ifdef __x86_64__
      if (!wcscmp(assembly->identity.architecture, L"x86")) sam |= KEY_WOW64_32KEY;
  #endif
  
      LIST_FOR_EACH_ENTRY(registryop, &assembly->registryops, struct registryop_entry, entry)
      {
          if (!(path = split_registry_key(registryop->key, &root)))
          {
              ret = FALSE;
              break;
          }
  
          TRACE("Processing registry key %s\n", debugstr_w(registryop->key));
  
          if (!dryrun && RegCreateKeyExW(root, path, 0, NULL, 0, sam, NULL, &subkey, NULL))
          {
              ERR("Failed to open registry key %s\n", debugstr_w(registryop->key));
              ret = FALSE;
              break;
          }
  
          LIST_FOR_EACH_ENTRY(registrykv, &registryop->keyvalues, struct registrykv_entry, entry)
          {
              if (!(ret = install_registry_value(assembly, subkey, registrykv, dryrun))) break;
          }
  
          if (!dryrun) RegCloseKey(subkey);
          if (!ret) break;
      }
  
      return ret;
  }
  
  static BOOL install_assembly(struct list *manifest_list, struct assembly_identity *identity, BOOL dryrun)
  {
      struct dependency_entry *dependency;
      struct assembly_entry *assembly;
      const WCHAR *name;
  
      if (!(assembly = lookup_assembly(manifest_list, identity)))
      {
          FIXME("Assembly %s not found\n", debugstr_w(identity->name));
          return FALSE;
      }
  
      name = assembly->identity.name;
  
      if (assembly->status == ASSEMBLY_STATUS_INSTALLED)
      {
          TRACE("Assembly %s already installed\n", debugstr_w(name));
          return TRUE;
      }
      if (assembly->status == ASSEMBLY_STATUS_IN_PROGRESS)
      {
          ERR("Assembly %s caused circular dependency\n", debugstr_w(name));
          return FALSE;
      }
  
  #ifdef __i386__
      if (!wcscmp(assembly->identity.architecture, L"amd64"))
      {
          ERR("Cannot install amd64 assembly in 32-bit prefix\n");
          return FALSE;
      }
  #endif
  
      assembly->status = ASSEMBLY_STATUS_IN_PROGRESS;
  
      LIST_FOR_EACH_ENTRY(dependency, &assembly->dependencies, struct dependency_entry, entry)
      {
          if (!install_assembly(manifest_list, &dependency->identity, dryrun)) return FALSE;
      }
  
      TRACE("Installing assembly %s%s\n", debugstr_w(name), dryrun ? " (dryrun)" : "");
  
      if (!install_files(assembly, dryrun))
      {
          ERR("Failed to install all files for %s\n", debugstr_w(name));
          return FALSE;
      }
  
      if (!install_registry(assembly, dryrun))
      {
          ERR("Failed to install registry keys for %s\n", debugstr_w(name));
          return FALSE;
      }
  
      TRACE("Installation of %s finished\n", debugstr_w(name));
  
      assembly->status = ASSEMBLY_STATUS_INSTALLED;
      return TRUE;
  }
  
  static BOOL install_updates(struct installer_state *state, BOOL dryrun)
  {
      struct dependency_entry *dependency;
      LIST_FOR_EACH_ENTRY(dependency, &state->updates, struct dependency_entry, entry)
      {
          if (!install_assembly(&state->assemblies, &dependency->identity, dryrun))
          {
              ERR("Failed to install update %s\n", debugstr_w(dependency->identity.name));
              return FALSE;
          }
      }
      return TRUE;
  }
  
  static void set_assembly_status(struct list *manifest_list, DWORD status)
  {
      struct assembly_entry *assembly;
      LIST_FOR_EACH_ENTRY(assembly, manifest_list, struct assembly_entry, entry)
      {
          assembly->status = status;
      }
  }
  
  static BOOL install_msu(const WCHAR *filename, struct installer_state *state)
  {
      const WCHAR *temp_path;
      WIN32_FIND_DATAW data;
      HANDLE search;
      WCHAR *path;
      BOOL ret = FALSE;
  
      list_init(&state->tempdirs);
      list_init(&state->assemblies);
      list_init(&state->updates);
      CoInitialize(NULL);
  
      TRACE("Processing msu file %s\n", debugstr_w(filename));
  
      if (!(temp_path = create_temp_directory(state))) return FALSE;
      if (!extract_cabinet(filename, temp_path))
      {
          ERR("Failed to extract %s\n", debugstr_w(filename));
          goto done;
      }
  
      /* load all manifests from contained cabinet archives */
      if (!(path = path_combine(temp_path, L"*.cab"))) goto done;
      search = FindFirstFileW(path, &data);
      heap_free(path);
  
      if (search != INVALID_HANDLE_VALUE)
      {
          do
          {
              if (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) continue;
              if (!wcsicmp(data.cFileName, L"WSUSSCAN.cab")) continue;
              if (!(path = path_combine(temp_path, data.cFileName))) continue;
              if (!load_assemblies_from_cab(path, state))
                  ERR("Failed to load all manifests from %s, ignoring\n", debugstr_w(path));
              heap_free(path);
          }
          while (FindNextFileW(search, &data));
          FindClose(search);
      }
  
      /* load all update descriptions */
      if (!(path = path_combine(temp_path, L"*.xml"))) goto done;
      search = FindFirstFileW(path, &data);
      heap_free(path);
  
      if (search != INVALID_HANDLE_VALUE)
      {
          do
          {
              if (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) continue;
              if (!(path = path_combine(temp_path, data.cFileName))) continue;
              if (!load_update(path, &state->updates))
                  ERR("Failed to load all updates from %s, ignoring\n", debugstr_w(path));
              heap_free(path);
          }
          while (FindNextFileW(search, &data));
          FindClose(search);
      }
  
      /* dump package information (for debugging) */
      if (TRACE_ON(wusa))
      {
          struct dependency_entry *dependency;
          struct assembly_entry *assembly;
  
          TRACE("List of updates:\n");
          LIST_FOR_EACH_ENTRY(dependency, &state->updates, struct dependency_entry, entry)
              TRACE(" * %s\n", debugstr_w(dependency->identity.name));
  
          TRACE("List of manifests (with dependencies):\n");
          LIST_FOR_EACH_ENTRY(assembly, &state->assemblies, struct assembly_entry, entry)
          {
              TRACE(" * %s\n", debugstr_w(assembly->identity.name));
              LIST_FOR_EACH_ENTRY(dependency, &assembly->dependencies, struct dependency_entry, entry)
                  TRACE("   -> %s\n", debugstr_w(dependency->identity.name));
          }
      }
  
      if (list_empty(&state->updates))
      {
          ERR("No updates found, probably incompatible MSU file format?\n");
          goto done;
      }
  
      /* perform dry run */
      set_assembly_status(&state->assemblies, ASSEMBLY_STATUS_NONE);
      if (!install_updates(state, TRUE))
      {
          ERR("Dry run failed, aborting installation\n");
          goto done;
      }
  
      /* installation */
      set_assembly_status(&state->assemblies, ASSEMBLY_STATUS_NONE);
      if (!install_updates(state, FALSE))
      {
          ERR("Installation failed\n");
          goto done;
      }
  
      TRACE("Installation finished\n");
      ret = TRUE;
  
  done:
      installer_cleanup(state);
      return ret;
  }
  
  static void restart_as_x86_64(void)
  {
      WCHAR filename[MAX_PATH];
      PROCESS_INFORMATION pi;
      STARTUPINFOW si;
      DWORD exit_code = 1;
      void *redir;
  
      memset(&si, 0, sizeof(si));
      si.cb = sizeof(si);
      GetSystemDirectoryW( filename, MAX_PATH );
      wcscat( filename, L"\\wusa.exe" );
  
      Wow64DisableWow64FsRedirection(&redir);
      if (CreateProcessW(filename, GetCommandLineW(), NULL, NULL, FALSE, 0, NULL, NULL, &si, &pi))
      {
          TRACE("Restarting %s\n", wine_dbgstr_w(filename));
          WaitForSingleObject(pi.hProcess, INFINITE);
          GetExitCodeProcess(pi.hProcess, &exit_code);
          CloseHandle(pi.hProcess);
          CloseHandle(pi.hThread);
      }
      else ERR("Failed to restart 64-bit %s, err %lu\n", wine_dbgstr_w(filename), GetLastError());
      Wow64RevertWow64FsRedirection(redir);
  
      ExitProcess(exit_code);
  }
  
  int __cdecl wmain(int argc, WCHAR *argv[])
  {
      struct installer_state state;
      const WCHAR *filename = NULL;
      BOOL is_wow64;
      int i;
  
      if (IsWow64Process( GetCurrentProcess(), &is_wow64 ) && is_wow64) restart_as_x86_64();
  
      state.norestart = FALSE;
      state.quiet = FALSE;
  
      if (TRACE_ON(wusa))
      {
          TRACE("Command line:");
          for (i = 0; i < argc; i++)
              TRACE(" %s", wine_dbgstr_w(argv[i]));
          TRACE("\n");
      }
  
      for (i = 1; i < argc; i++)
      {
          if (argv[i][0] == '/')
          {
              if (!wcscmp(argv[i], L"/norestart"))
                  state.norestart = TRUE;
              else if (!wcscmp(argv[i], L"/quiet"))
                  state.quiet = TRUE;
              else
                  FIXME("Unknown option: %s\n", wine_dbgstr_w(argv[i]));
          }
          else if (!filename)
              filename = argv[i];
          else
              FIXME("Unknown option: %s\n", wine_dbgstr_w(argv[i]));
      }
  
      if (!filename)
      {
          FIXME("Missing filename argument\n");
          return 1;
      }
  
      return !install_msu(filename, &state);
  }
  