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Fixed build, we still have test errors

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This commit is contained in:
Carlo Nucera 2020-07-01 17:32:06 -04:00
parent b798efb829
commit c2e7f7a712
3 changed files with 34 additions and 18 deletions
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46
src/libutil/hash.cc
View file

@ -132,17 +132,24 @@ std::string Hash::to_string(Base base, bool includeType) const
return s;
}
Hash fromSRI(std::string_view original) {
Hash Hash::fromSRI(std::string_view original) {
auto rest = original;
// Parse the has type before the separater, if there was one.
auto hashRaw = splitPrefix(rest, '-');
if (!hashRaw)
throw BadHash("hash '%s' is not SRI", original);
HashType parsedType = parseHashType(*hashRaw);
return Hash(rest, std::make_pair(parsedType, true));
}
Hash::Hash(std::string_view s) : Hash(s, std::nullopt) { }
Hash::Hash(std::string_view s) : Hash(s, std::nullopt) {}
static HashType newFunction(std::string_view & rest, std::optional<HashType> optType)
static std::pair<HashType, bool> newFunction(std::string_view & original, std::optional<HashType> optType)
{
auto rest = original;
size_t pos = 0;
bool isSRI = false;
// Parse the has type before the separater, if there was one.
@ -166,16 +173,23 @@ static HashType newFunction(std::string_view & rest, std::optional<HashType> opt
} else {
if (optParsedType && optType && *optParsedType != *optType)
throw BadHash("hash '%s' should have type '%s'", original, printHashType(*optType));
return optParsedType ? *optParsedType : *optType;
return {
optParsedType ? *optParsedType : *optType,
isSRI,
};
}
}
// mutates the string_view
Hash::Hash(std::string_view original, std::optional<HashType> optType)
: Hash(original, newFunction(original, optType))
: Hash(original, newFunction(original, optType)) {}
Hash::Hash(std::string_view original, HashType type) : Hash(type) {
if (!isSRI && rest.size() == base16Len()) {
Hash::Hash(std::string_view original, std::pair<HashType, bool> typeAndSRI)
: Hash(typeAndSRI.first)
{
auto [type, isSRI] = std::move(typeAndSRI);
if (!isSRI && original.size() == base16Len()) {
auto parseHexDigit = [&](char c) {
if (c >= '0' && c <= '9') return c - '0';
@ -186,15 +200,15 @@ Hash::Hash(std::string_view original, HashType type) : Hash(type) {
for (unsigned int i = 0; i < hashSize; i++) {
hash[i] =
parseHexDigit(rest[pos + i * 2]) << 4
| parseHexDigit(rest[pos + i * 2 + 1]);
parseHexDigit(original[i * 2]) << 4
| parseHexDigit(original[i * 2 + 1]);
}
}
else if (!isSRI && rest.size() == base32Len()) {
else if (!isSRI && original.size() == base32Len()) {
for (unsigned int n = 0; n < rest.size(); ++n) {
char c = rest[rest.size() - n - 1];
for (unsigned int n = 0; n < original.size(); ++n) {
char c = original[original.size() - n - 1];
unsigned char digit;
for (digit = 0; digit < base32Chars.size(); ++digit) /* !!! slow */
if (base32Chars[digit] == c) break;
@ -214,8 +228,8 @@ Hash::Hash(std::string_view original, HashType type) : Hash(type) {
}
}
else if (isSRI || rest.size() == base64Len()) {
auto d = base64Decode(rest);
else if (isSRI || original.size() == base64Len()) {
auto d = base64Decode(original);
if (d.size() != hashSize)
throw BadHash("invalid %s hash '%s'", isSRI ? "SRI" : "base-64", original);
assert(hashSize);
@ -223,7 +237,7 @@ Hash::Hash(std::string_view original, HashType type) : Hash(type) {
}
else
throw BadHash("hash '%s' has wrong length for hash type '%s'", rest, printHashType(this->type));
throw BadHash("hash '%s' has wrong length for hash type '%s'", original, printHashType(this->type));
}
Hash newHashAllowEmpty(std::string hashStr, std::optional<HashType> ht)

4
src/libutil/hash.hh
View file

@ -43,9 +43,11 @@ struct Hash
// hash type must be part of string
Hash(std::string_view s);
Hash fromSRI(std::string_view original);
private:
// type must be provided, s must not include <type> prefix
Hash(std::string_view s, HashType type);
Hash(std::string_view s, std::pair<HashType, bool> typeAndSRI);
void init();

2
src/libutil/util.cc
View file

@ -1433,7 +1433,7 @@ string base64Decode(std::string_view s)
char digit = decode[(unsigned char) c];
if (digit == -1)
throw Error("invalid character in Base64 string");
throw Error("invalid character in Base64 string: '%c'", c);
bits += 6;
d = d << 6 | digit;