components/update_client/update_query_params.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef COMPONENTS_UPDATE_CLIENT_UPDATE_QUERY_PARAMS_H_
   6 #define COMPONENTS_UPDATE_CLIENT_UPDATE_QUERY_PARAMS_H_
   7
   8 #include <string>
   9
  10 #include "base/basictypes.h"
  11
  12 namespace update_client {
  13
  14 class UpdateQueryParamsDelegate;
  15
  16 // Generates a string of URL query parameters to be used when getting
  17 // component and extension updates. These parameters generally remain
  18 // fixed for a particular build. Embedders can use the delegate to
  19 // define different implementations. This should be used only in the
  20 // browser process.
  21 class UpdateQueryParams {
  22  public:
  23   enum ProdId {
  24     CHROME = 0,
  25     CRX,
  26   };
  27
  28   // Generates a string of URL query parameters for Omaha. Includes the
  29   // following fields: "os", "arch", "nacl_arch", "prod", "prodchannel",
  30   // "prodversion", and "lang"
  31   static std::string Get(ProdId prod);
  32
  33   // Returns the value we use for the "prod=" parameter. Possible return values
  34   // include "chrome", "chromecrx", "chromiumcrx", and "unknown".
  35   static const char* GetProdIdString(ProdId prod);
  36
  37   // Returns the value we use for the "os=" parameter. Possible return values
  38   // include: "mac", "win", "android", "cros", "linux", and "openbsd".
  39   static const char* GetOS();
  40
  41   // Returns the value we use for the "arch=" parameter. Possible return values
  42   // include: "x86", "x64", and "arm".
  43   static const char* GetArch();
  44
  45   // Returns the value we use for the "nacl_arch" parameter. Note that this may
  46   // be different from the "arch" parameter above (e.g. one may be 32-bit and
  47   // the other 64-bit). Possible return values include: "x86-32", "x86-64",
  48   // "arm", and "mips32".
  49   static const char* GetNaclArch();
  50
  51   // Use this delegate.
  52   static void SetDelegate(UpdateQueryParamsDelegate* delegate);
  53
  54  private:
  55   DISALLOW_IMPLICIT_CONSTRUCTORS(UpdateQueryParams);
  56 };
  57
  58 }  // namespace update_client
  59
  60 #endif  // COMPONENTS_UPDATE_CLIENT_UPDATE_QUERY_PARAMS_H_