diff options
Diffstat (limited to 'src/libutil/hash.cc')
| -rw-r--r-- | src/libutil/hash.cc | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/libutil/hash.cc b/src/libutil/hash.cc index 7caee1da7..460d479a3 100644 --- a/src/libutil/hash.cc +++ b/src/libutil/hash.cc @@ -125,7 +125,7 @@ std::string Hash::to_string(Base base, bool includeType) const } -Hash::Hash(const std::string & s, HashType type) +Hash::Hash(std::string_view s, HashType type) : type(type) { size_t pos = 0; @@ -194,7 +194,7 @@ Hash::Hash(const std::string & s, HashType type) } else if (isSRI || size == base64Len()) { - auto d = base64Decode(std::string(s, pos)); + auto d = base64Decode(s.substr(pos)); if (d.size() != hashSize) throw BadHash("invalid %s hash '%s'", isSRI ? "SRI" : "base-64", s); assert(hashSize); @@ -205,6 +205,16 @@ Hash::Hash(const std::string & s, HashType type) throw BadHash("hash '%s' has wrong length for hash type '%s'", s, printHashType(type)); } +Hash newHashAllowEmpty(std::string hashStr, HashType ht) +{ + if (hashStr.empty()) { + Hash h(ht); + warn("found empty hash, assuming '%s'", h.to_string(SRI, true)); + return h; + } else + return Hash(hashStr, ht); +} + union Ctx { |