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Fix tail matching algorithm. Bug 209902, patch by mvl@exedo.nl (Michiel van

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Leeuwen), r=dwite, sr=bzbarsky.
This commit is contained in:
bzbarsky%mit.edu 2003-06-19 22:35:08 +00:00
parent 4c68c36639
commit bf56dff08c
1 changed files with 10 additions and 2 deletions
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12
extensions/cookie/nsImgManager.cpp
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@ -248,13 +248,21 @@ nsImgManager::TestPermission(nsIURI *aCurrentURI,
nsCAutoString firstHost;
rv = aFirstURI->GetAsciiHost(firstHost);
if (NS_FAILED(rv)) return rv;
// If the tail is longer then the whole firstHost, it will never match
if (firstHost.Length() < tail.Length()) {
*aPermission = PR_FALSE;
return NS_OK;
}
// Get the last part of the firstUri with the same length as |tail|
const nsACString &firstTail = Substring(firstHost, dot, firstHost.Length() - dot);
const nsACString &firstTail = Substring(firstHost, firstHost.Length() - tail.Length(), tail.Length());
// Check that both tails are the same, and that just before the tail in
// |firstUri| there is a dot. That means both url are in the same domain
if ((dot > 0 && firstHost.CharAt(dot-1) != '.') || !tail.Equals(firstTail)) {
if ((firstHost.Length() > tail.Length() &&
firstHost.CharAt(firstHost.Length() - tail.Length() - 1) != '.') ||
!tail.Equals(firstTail)) {
*aPermission = PR_FALSE;
return NS_OK;
}