/
name.cr
94 lines (80 loc) · 2.41 KB
/
name.cr
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require "openssl/lib_crypto"
# :nodoc;
module OpenSSL::X509
# :nodoc;
class Name
# Parses entries in string and initializes a Name object.
#
# Example:
# ```
# OpenSSL::X509::Name.parse("CN=nobody/DC=example")
# ```
def self.parse(string : String) : Name
new.tap do |name|
string.split('/').each do |entry|
oid, value = entry.split('=')
name.add_entry(oid, value)
end
end
end
def initialize
@name = LibCrypto.x509_name_new
raise Error.new("X509_NAME_new") if @name.null?
end
def initialize(name : LibCrypto::X509_NAME)
@name = LibCrypto.x509_name_dup(name)
raise Error.new("X509_NAME_dup") if @name.null?
end
def finalize
LibCrypto.x509_name_free(@name)
end
def dup
self.class.new(@name)
end
def to_unsafe
@name
end
# Adds a new entry.
#
# Example:
# ```
# name = OpenSSL::X509::Name.new
# name.add_entry "CN", "Nobody"
# name.add_entry "DC", "example"
# ```
def add_entry(oid : String, value : String)
type = LibCrypto::MBSTRING_UTF8
ret = LibCrypto.x509_name_add_entry_by_txt(@name, oid, type, value, value.bytesize, -1, 0)
raise Error.new("X509_NAME_add_entry_by_txt") if ret.null?
end
# Returns entries as an Array of oid, value pairs.
#
# Example:
# ```
# name = OpenSSL::X509::Name.parse("CN=Nobody/DC=example")
# name.to_a # => [{"CN", "Nobody"}, {"DC", "example"}]
# ```
def to_a
count = LibCrypto.x509_name_entry_count(@name)
raise Error.new("X509_NAME_entry_count") if count < 0
long_name = Slice(UInt8).new(512)
Array(Tuple(String, String)).new(count) do |i|
entry = LibCrypto.x509_name_get_entry(@name, i)
raise Error.new("X509_NAME_get_entry") if entry.null?
obj = LibCrypto.x509_name_entry_get_object(entry)
LibCrypto.i2t_asn1_object(long_name, long_name.size, obj)
nid = LibCrypto.obj_ln2nid(long_name)
if nid == LibCrypto::NID_undef
oid = String.new(long_name)
else
short_name = LibCrypto.obj_nid2sn(nid)
oid = String.new(short_name)
end
asn1 = LibCrypto.x509_name_entry_get_data(entry)
str = LibCrypto.asn1_string_data(asn1)
str_len = LibCrypto.asn1_string_length(asn1)
{oid, String.new(str, str_len)}
end
end
end
end