modules/plugin/base/src/nsPluginSafety.h

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  37
  38 #ifndef nsPluginSafety_h__
  39 #define nsPluginSafety_h__
  40
  41 #include "npapi.h"
  42 #include "nsIPluginHost.h"
  43 #include "nsIPrefBranch.h"
  44 #include "nsIPrefService.h"
  45 #include <prinrval.h>
  46
  47 #if defined(XP_WIN) && !defined(WINCE)
  48 #define CALL_SAFETY_ON
  49 #endif
  50
  51 void NS_NotifyPluginCall(PRIntervalTime);
  52
  53 #ifdef CALL_SAFETY_ON
  54
  55 extern PRBool gSkipPluginSafeCalls;
  56
  57 #define NS_INIT_PLUGIN_SAFE_CALLS                               \
  58 PR_BEGIN_MACRO                                                  \
  59   nsresult res;                                                 \
  60   nsCOMPtr<nsIPrefBranch> pref(do_GetService(NS_PREFSERVICE_CONTRACTID, &res)); \
  61   if(NS_SUCCEEDED(res) && pref)                                 \
  62     res = pref->GetBoolPref("plugin.dont_try_safe_calls", &gSkipPluginSafeCalls);\
  63 PR_END_MACRO
  64
  65 #define NS_TRY_SAFE_CALL_RETURN(ret, fun, library, pluginInst) \
  66 PR_BEGIN_MACRO                                     \
  67   PRIntervalTime startTime = PR_IntervalNow();     \
  68   if(gSkipPluginSafeCalls)                         \
  69     ret = fun;                                     \
  70   else                                             \
  71   {                                                \
  72     try                                            \
  73     {                                              \
  74       ret = fun;                                   \
  75     }                                              \
  76     catch(...)                                     \
  77     {                                              \
  78       nsresult res;                                \
  79       nsCOMPtr<nsIPluginHost> host(do_GetService(kCPluginManagerCID, &res));\
  80       if(NS_SUCCEEDED(res) && (host != nsnull))    \
  81         host->HandleBadPlugin(library, pluginInst);\
  82       ret = (NPError)NS_ERROR_FAILURE;             \
  83     }                                              \
  84   }                                                \
  85   NS_NotifyPluginCall(startTime);                  \
  86 PR_END_MACRO
  87
  88 #define NS_TRY_SAFE_CALL_VOID(fun, library, pluginInst) \
  89 PR_BEGIN_MACRO                              \
  90   PRIntervalTime startTime = PR_IntervalNow();     \
  91   if(gSkipPluginSafeCalls)                  \
  92     fun;                                    \
  93   else                                      \
  94   {                                         \
  95     try                                     \
  96     {                                       \
  97       fun;                                  \
  98     }                                       \
  99     catch(...)                              \
 100     {                                       \
 101       nsresult res;                         \
 102       nsCOMPtr<nsIPluginHost> host(do_GetService(kCPluginManagerCID, &res));\
 103       if(NS_SUCCEEDED(res) && (host != nsnull))\
 104         host->HandleBadPlugin(library, pluginInst);\
 105     }                                       \
 106   }                                         \
 107   NS_NotifyPluginCall(startTime);                  \
 108 PR_END_MACRO
 109
 110 #else // vanilla calls
 111
 112 #define NS_TRY_SAFE_CALL_RETURN(ret, fun, library, pluginInst) \
 113 PR_BEGIN_MACRO                                     \
 114   PRIntervalTime startTime = PR_IntervalNow();     \
 115   ret = fun;                                       \
 116   NS_NotifyPluginCall(startTime);                  \
 117 PR_END_MACRO
 118
 119 #define NS_TRY_SAFE_CALL_VOID(fun, library, pluginInst) \
 120 PR_BEGIN_MACRO                              \
 121   PRIntervalTime startTime = PR_IntervalNow();     \
 122   fun;                                      \
 123   NS_NotifyPluginCall(startTime);                  \
 124 PR_END_MACRO
 125
 126 #endif // CALL_SAFETY_ON
 127
 128 #endif //nsPluginSafety_h__
 129