gecko-dev/dom/security/PolicyTokenizer.cpp

75 строки
2.0 KiB
C++

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "PolicyTokenizer.h"
static LogModule*
GetPolicyTokenizerLog()
{
static LazyLogModule gPolicyTokenizerPRLog("PolicyTokenizer");
return gPolicyTokenizerPRLog;
}
#define POLICYTOKENIZERLOG(args) MOZ_LOG(GetPolicyTokenizerLog(), mozilla::LogLevel::Debug, args)
static const char16_t SEMICOL = ';';
PolicyTokenizer::PolicyTokenizer(const char16_t* aStart,
const char16_t* aEnd)
: mCurChar(aStart)
, mEndChar(aEnd)
{
POLICYTOKENIZERLOG(("PolicyTokenizer::PolicyTokenizer"));
}
PolicyTokenizer::~PolicyTokenizer()
{
POLICYTOKENIZERLOG(("PolicyTokenizer::~PolicyTokenizer"));
}
void
PolicyTokenizer::generateNextToken()
{
skipWhiteSpaceAndSemicolon();
while (!atEnd() &&
!nsContentUtils::IsHTMLWhitespace(*mCurChar) &&
*mCurChar != SEMICOL) {
mCurToken.Append(*mCurChar++);
}
POLICYTOKENIZERLOG(("PolicyTokenizer::generateNextToken: %s", NS_ConvertUTF16toUTF8(mCurToken).get()));
}
void
PolicyTokenizer::generateTokens(policyTokens& outTokens)
{
POLICYTOKENIZERLOG(("PolicyTokenizer::generateTokens"));
// dirAndSrcs holds one set of [ name, src, src, src, ... ]
nsTArray <nsString> dirAndSrcs;
while (!atEnd()) {
generateNextToken();
dirAndSrcs.AppendElement(mCurToken);
skipWhiteSpace();
if (atEnd() || accept(SEMICOL)) {
outTokens.AppendElement(dirAndSrcs);
dirAndSrcs.Clear();
}
}
}
void
PolicyTokenizer::tokenizePolicy(const nsAString &aPolicyString,
policyTokens& outTokens)
{
POLICYTOKENIZERLOG(("PolicyTokenizer::tokenizePolicy"));
PolicyTokenizer tokenizer(aPolicyString.BeginReading(),
aPolicyString.EndReading());
tokenizer.generateTokens(outTokens);
}