content/ppapi_plugin/ppapi_plugin_main.cc

   1 // Copyright (c) 2012 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 #include "base/command_line.h"
   6 #include "base/debug/debugger.h"
   7 #include "base/i18n/rtl.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "base/threading/platform_thread.h"
  10 #include "build/build_config.h"
  11 #include "content/child/child_process.h"
  12 #include "content/common/content_constants_internal.h"
  13 #include "content/common/sandbox_linux.h"
  14 #include "content/ppapi_plugin/ppapi_thread.h"
  15 #include "content/public/common/content_client.h"
  16 #include "content/public/common/content_switches.h"
  17 #include "content/public/common/main_function_params.h"
  18 #include "content/public/plugin/content_plugin_client.h"
  19 #include "crypto/nss_util.h"
  20 #include "ppapi/proxy/proxy_module.h"
  21 #include "ui/base/ui_base_switches.h"
  22
  23 #if defined(OS_WIN)
  24 #include "sandbox/win/src/sandbox.h"
  25 #endif
  26
  27 #if defined(OS_LINUX)
  28 #include "content/public/common/sandbox_init.h"
  29 #endif
  30
  31 #if defined(OS_POSIX) && !defined(OS_ANDROID)
  32 #include <stdlib.h>
  33 #endif
  34
  35 #if defined(OS_WIN)
  36 sandbox::TargetServices* g_target_services = NULL;
  37 #else
  38 void* g_target_services = 0;
  39 #endif
  40
  41 namespace content {
  42
  43 // Main function for starting the PPAPI plugin process.
  44 int PpapiPluginMain(const MainFunctionParams& parameters) {
  45   const CommandLine& command_line = parameters.command_line;
  46
  47 #if defined(OS_WIN)
  48   g_target_services = parameters.sandbox_info->target_services;
  49 #endif
  50
  51   // If |g_target_services| is not null this process is sandboxed. One side
  52   // effect is that we can't pop dialogs like ChildProcess::WaitForDebugger()
  53   // does.
  54   if (command_line.HasSwitch(switches::kPpapiStartupDialog)) {
  55     if (g_target_services)
  56       base::debug::WaitForDebugger(2*60, false);
  57     else
  58       ChildProcess::WaitForDebugger("Ppapi");
  59   }
  60
  61   // Set the default locale to be the current UI language. WebKit uses ICU's
  62   // default locale for some font settings (especially switching between
  63   // Japanese and Chinese fonts for the same characters).
  64   if (command_line.HasSwitch(switches::kLang)) {
  65     std::string locale = command_line.GetSwitchValueASCII(switches::kLang);
  66     base::i18n::SetICUDefaultLocale(locale);
  67
  68 #if defined(OS_POSIX) && !defined(OS_ANDROID)
  69     // TODO(shess): Flash appears to have a POSIX locale dependency
  70     // outside of the existing PPAPI ICU support.  Certain games hang
  71     // while loading, and it seems related to datetime formatting.
  72     // http://crbug.com/155396
  73     // http://crbug.com/155671
  74     //
  75     // ICU can accept "en-US" or "en_US", but POSIX wants "en_US".
  76     std::replace(locale.begin(), locale.end(), '-', '_');
  77     locale.append(".UTF-8");
  78     setlocale(LC_ALL, locale.c_str());
  79     setenv("LANG", locale.c_str(), 0);
  80 #endif
  81   }
  82
  83   base::MessageLoop main_message_loop;
  84   base::PlatformThread::SetName("CrPPAPIMain");
  85   base::debug::TraceLog::GetInstance()->SetProcessName("PPAPI Process");
  86   base::debug::TraceLog::GetInstance()->SetProcessSortIndex(
  87       kTraceEventPpapiProcessSortIndex);
  88
  89 #if defined(OS_LINUX) && defined(USE_NSS)
  90   // Some out-of-process PPAPI plugins use NSS.
  91   // NSS must be initialized before enabling the sandbox below.
  92   crypto::InitNSSSafely();
  93 #endif
  94
  95   // Allow the embedder to perform any necessary per-process initialization
  96   // before the sandbox is initialized.
  97   if (GetContentClient()->plugin())
  98     GetContentClient()->plugin()->PreSandboxInitialization();
  99
 100 #if defined(OS_LINUX)
 101   LinuxSandbox::InitializeSandbox();
 102 #endif
 103
 104   ChildProcess ppapi_process;
 105   ppapi_process.set_main_thread(
 106       new PpapiThread(parameters.command_line, false));  // Not a broker.
 107
 108   main_message_loop.Run();
 109   return 0;
 110 }
 111
 112 }  // namespace content