bool checkDigest(const String& source, uint8_t hashAlgorithmsUsed, const CSPDirectiveListVector& policies)
{
// Any additions or subtractions from this struct should also modify the
// respective entries in the kSupportedPrefixes array in
// CSPSourceList::parseHash().
static const struct {
ContentSecurityPolicyHashAlgorithm cspHashAlgorithm;
HashAlgorithm algorithm;
} kAlgorithmMap[] = {
{ ContentSecurityPolicyHashAlgorithmSha1, HashAlgorithmSha1 },
{ ContentSecurityPolicyHashAlgorithmSha256, HashAlgorithmSha256 },
{ ContentSecurityPolicyHashAlgorithmSha384, HashAlgorithmSha384 },
{ ContentSecurityPolicyHashAlgorithmSha512, HashAlgorithmSha512 }
};
// Only bother normalizing the source/computing digests if there are any checks to be done.
if (hashAlgorithmsUsed == ContentSecurityPolicyHashAlgorithmNone)
return false;
StringUTF8Adaptor utf8Source(source);
for (const auto& algorithmMap : kAlgorithmMap) {
DigestValue digest;
if (algorithmMap.cspHashAlgorithm & hashAlgorithmsUsed) {
bool digestSuccess = computeDigest(algorithmMap.algorithm, utf8Source.data(), utf8Source.length(), digest);
if (digestSuccess && isAllowedByAllWithHash<allowed>(policies, CSPHashValue(algorithmMap.cspHashAlgorithm, digest)))
return true;
}
}
return false;
}
static void convert_out_iso_8859_15(char* out, int out_len, char* in)
{
BufferCharSource utf8Source(in);
InternalEncodingConverter fromUTF8(utf8Source, ExternalEncoding::Unicode20UTF8(), InternalEncoding::Unicode20());
BufferCharSink outSink(out, out_len);
InternalEncodingConverterSink sinkToISO_8859_15(InternalEncoding::Unicode20(), ExternalEncoding::ISO_8859_15(), outSink);
sinkToISO_8859_15.Put(fromUTF8);
}
static void convert_out_cp1256(char* out, int out_len, char* in)
{
BufferCharSource utf8Source(in);
InternalEncodingConverter fromUTF8(utf8Source, ExternalEncoding::Unicode20UTF8(), InternalEncoding::Unicode20());
BufferCharSink outSink(out, out_len);
InternalEncodingConverterSink sinkToCP1256(InternalEncoding::Unicode20(), ExternalEncoding::CP1256(), outSink);
sinkToCP1256.Put(fromUTF8);
}
void toupper_utf8_string(char *OutputString, char *InputString)
{
int InputString_Length;
InputString_Length = strlen((const char *)InputString);
BufferCharSource utf8Source(InputString,InputString+InputString_Length);
InternalEncodingConverter unicodeSource(utf8Source, ExternalEncoding::Unicode20UTF8(), InternalEncoding::Unicode20());
ToUppercaseTransform toUpper(unicodeSource); /* DENqa22293: changed for rosette 3.2.0 */
BufferCharSink utf8sink(OutputString, InputString_Length*3);
InternalEncodingConverterSink outsink(InternalEncoding::Unicode20(), ExternalEncoding::Unicode20UTF8(), utf8sink);
outsink.Put(toUpper);
}
CString ArbI18N::toFullWidth(char const * s)
{
/* we want to ensure the use of full-width numbers and latin text. */
BufferCharSource utf8Source(s);
InternalEncodingConverter fromUTF8(utf8Source, ExternalEncoding::Unicode20UTF8(), InternalEncoding::Unicode20());
ToFullwidthTransform fullWidth(fromUTF8);
StringCharSink backToUTF8;
InternalEncodingConverterSink sinkToUTF8(InternalEncoding::Unicode20(), ExternalEncoding::Unicode20UTF8(), backToUTF8);
sinkToUTF8.Put(fullWidth);
CString r = backToUTF8.c_str();
return r;
}
CString ArbI18N::Utf8HankakuToZenkaku(char const * s)
{
/* Change Hiragana to Katakana and set all characters to full-width */
BufferCharSource utf8Source(s);
StringCharSink utf8Sink;
InternalEncodingConverter unicodeSource(utf8Source,
ExternalEncoding::Unicode20UTF8(), InternalEncoding::Unicode20());
ToUppercaseTransform toU(unicodeSource);
ToKatakanaTransform toK(toU);
HankakuKatakanaToZenkakuTransform HtoZ(toK);
InternalEncodingConverterSink unicodeSink(InternalEncoding::Unicode20(),
ExternalEncoding::Unicode20UTF8(), utf8Sink);
unicodeSink.Put(HtoZ);
CString r = utf8Sink.c_str();
return r;
}
