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bug#49786 Caching frequently used progid: nsThreadJSContextStack r=waterson

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This commit is contained in:
dp%netscape.com 2000-08-22 06:02:14 +00:00
parent 6c95754e2c
commit e5e279fe36
2 changed files with 32 additions and 9 deletions
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6
caps/include/nsScriptSecurityManager.h
View File

@ -47,6 +47,8 @@
#include "nsIPref.h"
#include "nsISecurityPref.h"
#include "nsIJSContextStack.h"
/////////////////////
// nsIPrincipalKey //
/////////////////////
@ -101,7 +103,8 @@ public:
static nsScriptSecurityManager *
GetScriptSecurityManager();
JSContext * GetCurrentContextQuick();
private:
NS_IMETHOD
@ -172,6 +175,7 @@ private:
PRBool mIsMailJavaScriptEnabled;
PRBool mIsWritingPrefs;
unsigned char hasDomainPolicyVector[(NS_DOM_PROP_MAX >> 3) + 1];
nsCOMPtr<nsIJSContextStack> mThreadJSContextStack;
};
#endif /*_NS_SCRIPT_SECURITY_MANAGER_H_*/

35
caps/src/nsScriptSecurityManager.cpp
View File

@ -81,8 +81,7 @@ static JSContext *
GetCurrentContext() {
// Get JSContext from stack.
nsresult rv;
NS_WITH_SERVICE(nsIJSContextStack, stack, "nsThreadJSContextStack",
&rv);
nsCOMPtr<nsIJSContextStack> stack = do_GetService("nsThreadJSContextStack", &rv);
if (NS_FAILED(rv))
return nsnull;
JSContext *cx;
@ -91,6 +90,25 @@ GetCurrentContext() {
return cx;
}
// Convinience method to get the current js context stack.
// Uses cached JSContextStack service instead of calling through
// to the service manager.
JSContext *
nsScriptSecurityManager::GetCurrentContextQuick() {
// Get JSContext from stack.
nsresult rv;
if (!mThreadJSContextStack) {
mThreadJSContextStack = do_GetService("nsThreadJSContextStack", &rv);
}
if (!mThreadJSContextStack)
return nsnull;
JSContext *cx;
if (NS_FAILED(mThreadJSContextStack->Peek(&cx)))
return nsnull;
return cx;
}
#if 0
// unused.
static JSContext *
@ -632,7 +650,7 @@ nsScriptSecurityManager::CheckFunctionAccess(JSContext *aCx, void *aFunObj,
NS_IMETHODIMP
nsScriptSecurityManager::GetSubjectPrincipal(nsIPrincipal **result)
{
JSContext *cx = GetCurrentContext();
JSContext *cx = GetCurrentContextQuick();
if (!cx) {
*result = nsnull;
return NS_OK;
@ -836,7 +854,7 @@ nsScriptSecurityManager::IsCapabilityEnabled(const char *capability,
{
nsresult rv;
JSStackFrame *fp = nsnull;
JSContext *cx = GetCurrentContext();
JSContext *cx = GetCurrentContextQuick();
fp = cx ? JS_FrameIterator(cx, &fp) : nsnull;
if (!fp) {
// No script code on stack. Allow execution.
@ -1058,7 +1076,7 @@ nsScriptSecurityManager::GetPrincipalAndFrame(JSContext *cx,
NS_IMETHODIMP
nsScriptSecurityManager::EnableCapability(const char *capability)
{
JSContext *cx = GetCurrentContext();
JSContext *cx = GetCurrentContextQuick();
JSStackFrame *fp;
//Error checks for capability string length (200)
@ -1102,7 +1120,7 @@ nsScriptSecurityManager::EnableCapability(const char *capability)
NS_IMETHODIMP
nsScriptSecurityManager::RevertCapability(const char *capability)
{
JSContext *cx = GetCurrentContext();
JSContext *cx = GetCurrentContextQuick();
JSStackFrame *fp;
nsCOMPtr<nsIPrincipal> principal;
if (NS_FAILED(GetPrincipalAndFrame(cx, getter_AddRefs(principal),
@ -1119,7 +1137,7 @@ nsScriptSecurityManager::RevertCapability(const char *capability)
NS_IMETHODIMP
nsScriptSecurityManager::DisableCapability(const char *capability)
{
JSContext *cx = GetCurrentContext();
JSContext *cx = GetCurrentContextQuick();
JSStackFrame *fp;
nsCOMPtr<nsIPrincipal> principal;
if (NS_FAILED(GetPrincipalAndFrame(cx, getter_AddRefs(principal),
@ -1183,7 +1201,7 @@ nsScriptSecurityManager::SetCanEnableCapability(const char* certificateID,
}
if (!isEqual)
{
JSContext* cx = GetCurrentContext();
JSContext* cx = GetCurrentContextQuick();
if (!cx) return NS_ERROR_FAILURE;
static const char msg1[] = "Only code signed by the system certificate may call SetCanEnableCapability or Invalidate";
static const char msg2[] = "Attempt to call SetCanEnableCapability or Invalidate when no system certificate has been established";
@ -1395,6 +1413,7 @@ nsScriptSecurityManager::nsScriptSecurityManager(void)
NS_INIT_REFCNT();
memset(hasDomainPolicyVector, 0, sizeof(hasDomainPolicyVector));
InitPrefs();
mThreadJSContextStack = do_GetService("nsThreadJSContextStack");
}
nsScriptSecurityManager::~nsScriptSecurityManager(void)