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Bug 283016 Make it possible to blacklist characters in domain names r=gerv, sr=darin, a=benjamin

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This commit is contained in:
masayuki%d-toybox.com 2005-07-22 15:07:33 +00:00
parent ddf1984c63
commit 9f7d47f9a7
2 changed files with 33 additions and 5 deletions
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34
netwerk/dns/src/nsIDNService.cpp
View File

@ -37,7 +37,6 @@
* ***** END LICENSE BLOCK ***** */
#include "nsIDNService.h"
#include "nsString.h"
#include "nsReadableUtils.h"
#include "nsCRT.h"
#include "nsUnicharUtils.h"
@ -46,6 +45,7 @@
#include "nsIPrefBranch.h"
#include "nsIPrefBranch2.h"
#include "nsIObserverService.h"
#include "nsISupportsPrimitives.h"
#include "punycode.h"
//-----------------------------------------------------------------------------
@ -56,6 +56,14 @@ static const PRUint32 kMaxDNSNodeLen = 63;
#define NS_NET_PREF_IDNTESTBED "network.IDN_testbed"
#define NS_NET_PREF_IDNPREFIX "network.IDN_prefix"
#define NS_NET_PREF_IDNBLACKLIST "network.IDN.blacklist_chars"
inline PRBool isOnlySafeChars(const nsAFlatString& in,
const nsAFlatString& blacklist)
{
return (blacklist.IsEmpty() ||
in.FindCharInSet(blacklist) == kNotFound);
}
//-----------------------------------------------------------------------------
// nsIDNService
@ -73,6 +81,7 @@ nsresult nsIDNService::Init()
if (prefInternal) {
prefInternal->AddObserver(NS_NET_PREF_IDNTESTBED, this, PR_TRUE);
prefInternal->AddObserver(NS_NET_PREF_IDNPREFIX, this, PR_TRUE);
prefInternal->AddObserver(NS_NET_PREF_IDNBLACKLIST, this, PR_TRUE);
prefsChanged(prefInternal, nsnull);
}
return NS_OK;
@ -103,6 +112,16 @@ void nsIDNService::prefsChanged(nsIPrefBranch *prefBranch, const PRUnichar *pref
if (NS_SUCCEEDED(rv) && prefix.Length() <= kACEPrefixLen)
PL_strncpyz(nsIDNService::mACEPrefix, prefix.get(), kACEPrefixLen + 1);
}
if (!pref || NS_LITERAL_STRING(NS_NET_PREF_IDNBLACKLIST).Equals(pref)) {
nsCOMPtr<nsISupportsString> blacklist;
nsresult rv = prefBranch->GetComplexValue(NS_NET_PREF_IDNBLACKLIST,
NS_GET_IID(nsISupportsString),
getter_AddRefs(blacklist));
if (NS_SUCCEEDED(rv))
blacklist->ToString(getter_Copies(mIDNBlacklist));
else
mIDNBlacklist.Truncate();
}
}
nsIDNService::nsIDNService()
@ -252,9 +271,14 @@ NS_IMETHODIMP nsIDNService::Normalize(const nsACString & input, nsACString & out
nsAutoString outUTF16;
nsresult rv = stringPrep(inUTF16, outUTF16);
if (NS_SUCCEEDED(rv))
CopyUTF16toUTF8(outUTF16, output);
return rv;
if (NS_FAILED(rv))
return rv;
CopyUTF16toUTF8(outUTF16, output);
if (!isOnlySafeChars(outUTF16, mIDNBlacklist))
return ConvertUTF8toACE(output, output);
return NS_OK;
}
//-----------------------------------------------------------------------------
@ -531,6 +555,8 @@ nsresult nsIDNService::decodeACE(const nsACString& in, nsACString& out)
nsAutoString utf16;
ucs4toUtf16(output, utf16);
delete [] output;
if (!isOnlySafeChars(utf16, mIDNBlacklist))
return NS_ERROR_FAILURE;
CopyUTF16toUTF8(utf16, out);
// Validation: encode back to ACE and compare the strings

4
netwerk/dns/src/nsIDNService.h
View File

@ -45,6 +45,7 @@
#include "nsWeakReference.h"
#include "nsIUnicodeNormalizer.h"
#include "nsIDNKitInterface.h"
#include "nsString.h"
class nsIPrefBranch;
@ -75,11 +76,12 @@ private:
nsresult stringPrep(const nsAString& in, nsAString& out);
nsresult decodeACE(const nsACString& in, nsACString& out);
void prefsChanged(nsIPrefBranch *prefBranch, const PRUnichar *pref);
PRBool mMultilingualTestBed; // if true generates extra node for mulitlingual testbed
idn_nameprep_t mNamePrepHandle;
nsCOMPtr<nsIUnicodeNormalizer> mNormalizer;
char mACEPrefix[kACEPrefixLen+1];
nsXPIDLString mIDNBlacklist;
};
#endif // nsIDNService_h__