2009-09-19 Adam Barth <abarth@webkit.org>

[WebKit-https.git] / WebCore / html / canvas / CanvasRenderingContext2D.cpp

diff --git a/WebCore/html/canvas/CanvasRenderingContext2D.cpp b/WebCore/html/canvas/CanvasRenderingContext2D.cpp
index 1e3faa37400b4efcb88df05d4b317057cd3f51d2..ed462fc1a64db6a195493180cc97bcaa9179f240 100644 (file)
--- a/WebCore/html/canvas/CanvasRenderingContext2D.cpp
+++ b/WebCore/html/canvas/CanvasRenderingContext2D.cpp
@@ -935,16 +935,13 @@ static inline FloatRect normalizeRect(const FloatRect& rect)
 
 void CanvasRenderingContext2D::checkOrigin(const KURL& url)
 {
-    RefPtr<SecurityOrigin> origin = SecurityOrigin::create(url);
-    if (!m_canvas->document()->securityOrigin()->canAccess(origin.get()))
+    if (m_canvas->document()->securityOrigin()->taintsCanvas(url))
         m_canvas->setOriginTainted();
 }
 
 void CanvasRenderingContext2D::checkOrigin(const String& url)
 {
-    RefPtr<SecurityOrigin> origin = SecurityOrigin::createFromString(url);
-    if (!m_canvas->document()->securityOrigin()->canAccess(origin.get()))
-        m_canvas->setOriginTainted();
+    checkOrigin(KURL(KURL(), url));
 }
 
 void CanvasRenderingContext2D::drawImage(HTMLImageElement* image, float x, float y)
@@ -1208,8 +1205,7 @@ PassRefPtr<CanvasPattern> CanvasRenderingContext2D::createPattern(HTMLImageEleme
     if (!cachedImage || !image->cachedImage()->image())
         return CanvasPattern::create(Image::nullImage(), repeatX, repeatY, true);
 
-    RefPtr<SecurityOrigin> origin = SecurityOrigin::createFromString(cachedImage->url());
-    bool originClean = m_canvas->document()->securityOrigin()->canAccess(origin.get());
+    bool originClean = !m_canvas->document()->securityOrigin()->taintsCanvas(KURL(KURL(), cachedImage->url()));
     return CanvasPattern::create(cachedImage->image(), repeatX, repeatY, originClean);
 }