Botan::AlternativeName Class Reference

#include <pkix_types.h>

Inheritance diagram for Botan::AlternativeName:

Public Member Functions
void	add_attribute (std::string_view type, std::string_view value)
void	add_dn (const X509_DN &dn)
	Add a directory name to this AlternativeName.
void	add_dns (std::string_view dns)
	Add a DNS name to this AlternativeName.
void	add_email (std::string_view addr)
	Add a URI to this AlternativeName.
void	add_ipv4_address (uint32_t ipv4)
	Add an IP address to this alternative name.
void	add_other_name (const OID &oid, const ASN1_String &value)
	Add an "OtherName" identified by object identifier to this AlternativeName.
void	add_othername (const OID &oid, std::string_view value, ASN1_Type type)
void	add_uri (std::string_view uri)
	Add a URI to this AlternativeName.
	AlternativeName ()
	Create an empty name.
	AlternativeName (std::string_view email_addr, std::string_view uri="", std::string_view dns="", std::string_view ip_address="")
std::vector< uint8_t >	BER_encode () const
std::multimap< std::string, std::string >	contents () const
size_t	count () const
void	decode_from (BER_Decoder &) override
const std::set< X509_DN > &	directory_names () const
	Return the set of directory names included in this alternative name.
X509_DN	dn () const
const std::set< std::string > &	dns () const
	Return the set of DNS names included in this alternative name.
const std::set< std::string > &	email () const
	Return the set of email addresses included in this alternative name.
void	encode_into (DER_Encoder &) const override
std::vector< std::string >	get_attribute (std::string_view attr) const
std::multimap< std::string, std::string, std::less<> >	get_attributes () const
std::string	get_first_attribute (std::string_view attr) const
std::multimap< OID, ASN1_String >	get_othernames () const
bool	has_field (std::string_view attr) const
bool	has_items () const
	Return true if this has any names set.
const std::set< uint32_t > &	ipv4_address () const
	Return the set of IPv4 addresses included in this alternative name.
const std::set< std::pair< OID, ASN1_String > > &	other_names () const
	Return the set of "other names" included in this alternative name.
const std::set< std::string > &	uris () const
	Return the set of URIs included in this alternative name.

Detailed Description

Alternative Name

Definition at line 119 of file pkix_types.h.

Constructor & Destructor Documentation

AlternativeName() [1/2]

Botan::AlternativeName::AlternativeName ( )

inline

Create an empty name.

Definition at line 125 of file pkix_types.h.

{}

AlternativeName() [2/2]

Botan::AlternativeName::AlternativeName	(	std::string_view	email_addr,
		std::string_view	uri = "",
		std::string_view	dns = "",
		std::string_view	ip_address = "" )

Definition at line 20 of file asn1_alt_name.cpp.

                                                    {
   if(!email_addr.empty()) {
      add_email(email_addr);
   }
   if(!dns.empty()) {
      add_dns(dns);
   }
   if(!uri.empty()) {
      add_uri(uri);
   }
   if(!ip.empty()) {
      if(auto ipv4 = string_to_ipv4(ip)) {
         add_ipv4_address(*ipv4);
      } else {
         throw Invalid_Argument(fmt("Invalid IPv4 address '{}'", ip));
      }
   }
}

References add_dns(), add_email(), add_ipv4_address(), add_uri(), dns(), Botan::fmt(), and Botan::string_to_ipv4().

Member Function Documentation

add_attribute()

void Botan::AlternativeName::add_attribute	(	std::string_view	type,
		std::string_view	value )

Definition at line 45 of file asn1_alt_name.cpp.

                                                                             {
   if(type.empty() || value.empty()) {
      return;
   }
 
   if(type == "DNS") {
      this->add_dns(value);
   } else if(type == "RFC822") {
      this->add_email(value);
   } else if(type == "URI") {
      this->add_uri(value);
   } else if(type == "DN") {
      X509_DN dn;
      std::istringstream ss{std::string(value)};
      ss >> dn;
      this->add_dn(dn);
   } else if(type == "IP") {
      if(auto ipv4 = string_to_ipv4(value)) {
         add_ipv4_address(*ipv4);
      } else {
         throw Invalid_Argument(fmt("Invalid IPv4 address '{}'", value));
      }
   } else {
      throw Not_Implemented(fmt("Unknown AlternativeName name type {}", type));
   }
}

References add_dn(), add_dns(), add_email(), add_ipv4_address(), add_uri(), dn(), Botan::fmt(), and Botan::string_to_ipv4().

add_dn()

void Botan::AlternativeName::add_dn

(

const X509_DN &

dn

)

Add a directory name to this AlternativeName.

Definition at line 40 of file alt_name.cpp.

                                              {
   m_dn_names.insert(dn);
}

References dn().

Referenced by add_attribute(), and decode_from().

add_dns()

void Botan::AlternativeName::add_dns

(

std::string_view

dns

)

Add a DNS name to this AlternativeName.

Definition at line 30 of file alt_name.cpp.

                                                {
   if(!dns.empty()) {
      m_dns.insert(tolower_string(dns));
   }
}

References dns(), and Botan::tolower_string().

Referenced by add_attribute(), AlternativeName(), and decode_from().

add_email()

void Botan::AlternativeName::add_email

(

std::string_view

addr

)

Add a URI to this AlternativeName.

Definition at line 24 of file alt_name.cpp.

                                                   {
   if(!addr.empty()) {
      m_email.insert(std::string(addr));
   }
}

Referenced by add_attribute(), AlternativeName(), and decode_from().

add_ipv4_address()

void Botan::AlternativeName::add_ipv4_address

(

uint32_t

ipv4

)

Add an IP address to this alternative name.

Definition at line 44 of file alt_name.cpp.

                                                  {
   m_ipv4_addr.insert(ip);
}

Referenced by add_attribute(), AlternativeName(), and decode_from().

add_other_name()

void Botan::AlternativeName::add_other_name	(	const OID &	oid,
		const ASN1_String &	value )

Add an "OtherName" identified by object identifier to this AlternativeName.

Definition at line 36 of file alt_name.cpp.

                                                                             {
   m_othernames.insert(std::make_pair(oid, value));
}

Referenced by add_othername().

add_othername()

void Botan::AlternativeName::add_othername	(	const OID &	oid,
		std::string_view	value,
		ASN1_Type	type )

Definition at line 75 of file asn1_alt_name.cpp.

                                                                                        {
   if(value.empty()) {
      return;
   }
   this->add_other_name(oid, ASN1_String(value, type));
}

References add_other_name().

Referenced by decode_from().

add_uri()

void Botan::AlternativeName::add_uri

(

std::string_view

uri

)

Add a URI to this AlternativeName.

Definition at line 18 of file alt_name.cpp.

                                                {
   if(!uri.empty()) {
      m_uri.insert(std::string(uri));
   }
}

Referenced by add_attribute(), AlternativeName(), and decode_from().

BER_encode()

std::vector< uint8_t > Botan::ASN1_Object::BER_encode ( ) const

inherited

Return the encoding of this object. This is a convenience method when just one object needs to be serialized. Use DER_Encoder for complicated encodings.

Definition at line 19 of file asn1_obj.cpp.

                                                 {
   std::vector<uint8_t> output;
   DER_Encoder der(output);
   this->encode_into(der);
   return output;
}

References Botan::ASN1_Object::encode_into().

Referenced by Botan::PSS_Params::decode_from(), Botan::Certificate_Store_In_SQL::find_all_certs(), Botan::Certificate_Store_In_SQL::find_cert(), Botan::X509_Certificate::fingerprint(), Botan::Certificate_Store_In_SQL::insert_cert(), Botan::X509_Object::PEM_encode(), and Botan::Certificate_Store_In_SQL::revoke_cert().

contents()

std::multimap< std::string, std::string > Botan::AlternativeName::contents

(

)

const

Definition at line 85 of file asn1_alt_name.cpp.

                                                                  {
   std::multimap<std::string, std::string> names;
 
   for(const auto& nm : this->dns()) {
      names.emplace("DNS", nm);
   }
 
   for(const auto& nm : this->email()) {
      names.emplace("RFC822", nm);
   }
 
   for(const auto& nm : this->uris()) {
      names.emplace("URI", nm);
   }
 
   for(uint32_t ipv4 : this->ipv4_address()) {
      names.emplace("IP", ipv4_to_string(ipv4));
   }
 
   for(const auto& nm : this->directory_names()) {
      names.emplace("DN", nm.to_string());
   }
 
   for(const auto& othername : this->other_names()) {
      names.emplace(othername.first.to_formatted_string(), othername.second.value());
   }
 
   return names;
}

References directory_names(), dns(), email(), ipv4_address(), Botan::ipv4_to_string(), other_names(), and uris().

Referenced by get_attributes().

count()

size_t Botan::AlternativeName::count

(

)

const

Return the total number of names in this AlternativeName

This only counts names which were parsed, ignoring names which were of some unknown type

Definition at line 48 of file alt_name.cpp.

                                    {
   const auto sum = checked_add(
      m_dns.size(), m_uri.size(), m_email.size(), m_ipv4_addr.size(), m_dn_names.size(), m_othernames.size());
 
   return BOTAN_ASSERT_IS_SOME(sum);
}

References BOTAN_ASSERT_IS_SOME, and Botan::checked_add().

Referenced by has_items(), and Botan::GeneralName::matches().

decode_from()

void Botan::AlternativeName::decode_from ( BER_Decoder & from )

overridevirtual

Decode whatever this object is from from

Parameters

from	the BER_Decoder that will be read from

Implements Botan::ASN1_Object.

Definition at line 112 of file alt_name.cpp.

                                                     {
   BER_Decoder names = source.start_sequence();
 
   while(names.more_items()) {
      BER_Object obj = names.get_next_object();
 
      if(obj.is_a(0, ASN1_Class::ExplicitContextSpecific)) {
         BER_Decoder othername(obj);
 
         OID oid;
         othername.decode(oid);
         if(othername.more_items()) {
            BER_Object othername_value_outer = othername.get_next_object();
            othername.verify_end();
 
            if(!othername_value_outer.is_a(0, ASN1_Class::ExplicitContextSpecific)) {
               throw Decoding_Error("Invalid tags on otherName value");
            }
 
            BER_Decoder othername_value_inner(othername_value_outer);
 
            BER_Object value = othername_value_inner.get_next_object();
            othername_value_inner.verify_end();
 
            if(ASN1_String::is_string_type(value.type()) && value.get_class() == ASN1_Class::Universal) {
               add_othername(oid, ASN1::to_string(value), value.type());
            }
         }
      } else if(obj.is_a(1, ASN1_Class::ContextSpecific)) {
         add_email(ASN1::to_string(obj));
      } else if(obj.is_a(2, ASN1_Class::ContextSpecific)) {
         add_dns(ASN1::to_string(obj));
      } else if(obj.is_a(4, ASN1_Class::ContextSpecific | ASN1_Class::Constructed)) {
         BER_Decoder dec(obj);
         X509_DN dn;
         dec.decode(dn);
         this->add_dn(dn);
      } else if(obj.is_a(6, ASN1_Class::ContextSpecific)) {
         this->add_uri(ASN1::to_string(obj));
      } else if(obj.is_a(7, ASN1_Class::ContextSpecific)) {
         if(obj.length() == 4) {
            const uint32_t ip = load_be<uint32_t>(obj.bits(), 0);
            this->add_ipv4_address(ip);
         } else if(obj.length() != 16) {
            throw Decoding_Error("Invalid IP constraint neither IPv4 or IPv6");
         }
      }
   }
}

References add_dn(), add_dns(), add_email(), add_ipv4_address(), add_othername(), add_uri(), Botan::BER_Object::bits(), Botan::Constructed, Botan::ContextSpecific, Botan::BER_Decoder::decode(), dn(), Botan::ExplicitContextSpecific, Botan::BER_Object::get_class(), Botan::BER_Decoder::get_next_object(), Botan::BER_Object::is_a(), Botan::ASN1_String::is_string_type(), Botan::BER_Object::length(), Botan::load_be(), Botan::BER_Decoder::more_items(), Botan::BER_Decoder::start_sequence(), Botan::ASN1::to_string(), Botan::BER_Object::type(), Botan::Universal, and Botan::BER_Decoder::verify_end().

directory_names()

const std::set< X509_DN > & Botan::AlternativeName::directory_names ( ) const

inline

Return the set of directory names included in this alternative name.

Definition at line 164 of file pkix_types.h.

{ return m_dn_names; }

Referenced by contents(), dn(), get_attribute(), and Botan::GeneralName::matches().

dn()

X509_DN Botan::AlternativeName::dn

(

)

const

Definition at line 167 of file asn1_alt_name.cpp.

                                  {
   // This logic really does not make any sense, but it is
   // how this function was historically implemented.
 
   X509_DN combined_dn;
 
   for(const auto& dn : this->directory_names()) {
      std::ostringstream oss;
      oss << dn;
 
      std::istringstream iss(oss.str());
      iss >> combined_dn;
   }
 
   return combined_dn;
}

References directory_names(), and dn().

Referenced by add_attribute(), add_dn(), decode_from(), and dn().

dns()

const std::set< std::string > & Botan::AlternativeName::dns ( ) const

inline

Return the set of DNS names included in this alternative name.

Definition at line 152 of file pkix_types.h.

{ return m_dns; }

Referenced by add_dns(), AlternativeName(), contents(), get_attribute(), and Botan::GeneralName::matches().

email()

const std::set< std::string > & Botan::AlternativeName::email ( ) const

inline

Return the set of email addresses included in this alternative name.

Definition at line 149 of file pkix_types.h.

{ return m_email; }

Referenced by contents(), and get_attribute().

encode_into()

void Botan::AlternativeName::encode_into ( DER_Encoder & to ) const

overridevirtual

Encode whatever this object is into to

Parameters

to	the DER_Encoder that will be written to

Implements Botan::ASN1_Object.

Definition at line 59 of file alt_name.cpp.

                                                        {
   der.start_sequence();
 
   /*
   GeneralName ::= CHOICE {
        otherName                       [0]     OtherName,
        rfc822Name                      [1]     IA5String,
        dNSName                         [2]     IA5String,
        x400Address                     [3]     ORAddress,
        directoryName                   [4]     Name,
        ediPartyName                    [5]     EDIPartyName,
        uniformResourceIdentifier       [6]     IA5String,
        iPAddress                       [7]     OCTET STRING,
        registeredID                    [8]     OBJECT IDENTIFIER }
   */
 
   for(const auto& othername : m_othernames) {
      der.start_explicit(0)
         .encode(othername.first)
         .start_explicit(0)
         .encode(othername.second)
         .end_explicit()
         .end_explicit();
   }
 
   for(const auto& name : m_email) {
      ASN1_String str(name, ASN1_Type::Ia5String);
      der.add_object(ASN1_Type(1), ASN1_Class::ContextSpecific, str.value());
   }
 
   for(const auto& name : m_dns) {
      ASN1_String str(name, ASN1_Type::Ia5String);
      der.add_object(ASN1_Type(2), ASN1_Class::ContextSpecific, str.value());
   }
 
   for(const auto& name : m_dn_names) {
      der.add_object(ASN1_Type(4), ASN1_Class::ExplicitContextSpecific, name.DER_encode());
   }
 
   for(const auto& name : m_uri) {
      ASN1_String str(name, ASN1_Type::Ia5String);
      der.add_object(ASN1_Type(6), ASN1_Class::ContextSpecific, str.value());
   }
 
   for(uint32_t ip : m_ipv4_addr) {
      auto ip_buf = store_be(ip);
      // NOLINTNEXTLINE(clang-analyzer-optin.core.EnumCastOutOfRange)
      der.add_object(ASN1_Type(7), ASN1_Class::ContextSpecific, ip_buf.data(), 4);
   }
 
   der.end_cons();
}

References Botan::DER_Encoder::add_object(), Botan::ContextSpecific, Botan::DER_Encoder::encode(), Botan::DER_Encoder::end_cons(), Botan::DER_Encoder::end_explicit(), Botan::ExplicitContextSpecific, Botan::Ia5String, name, Botan::DER_Encoder::start_explicit(), Botan::DER_Encoder::start_sequence(), Botan::store_be(), and Botan::ASN1_String::value().

get_attribute()

std::vector< std::string > Botan::AlternativeName::get_attribute

(

std::string_view

attr

)

const

Definition at line 139 of file asn1_alt_name.cpp.

                                                                             {
   auto set_to_vector = [](const std::set<std::string>& s) -> std::vector<std::string> { return {s.begin(), s.end()}; };
 
   if(attr == "DNS") {
      return set_to_vector(this->dns());
   } else if(attr == "RFC822") {
      return set_to_vector(this->email());
   } else if(attr == "URI") {
      return set_to_vector(this->uris());
   } else if(attr == "DN") {
      std::vector<std::string> ret;
 
      for(const auto& nm : this->directory_names()) {
         ret.push_back(nm.to_string());
      }
 
      return ret;
   } else if(attr == "IP") {
      std::vector<std::string> ip_str;
      for(uint32_t ipv4 : this->ipv4_address()) {
         ip_str.push_back(ipv4_to_string(ipv4));
      }
      return ip_str;
   } else {
      return {};
   }
}

References directory_names(), dns(), email(), ipv4_address(), Botan::ipv4_to_string(), and uris().

Referenced by get_first_attribute(), and has_field().

get_attributes()

std::multimap< std::string, std::string, std::less<> > Botan::AlternativeName::get_attributes

(

)

const

Definition at line 115 of file asn1_alt_name.cpp.

                                                                                   {
   std::multimap<std::string, std::string, std::less<>> r;
 
   for(const auto& c : this->contents()) {
      r.emplace(c.first, c.second);
   }
 
   return r;
}

References contents().

get_first_attribute()

std::string Botan::AlternativeName::get_first_attribute

(

std::string_view

attr

)

const

Definition at line 129 of file asn1_alt_name.cpp.

                                                                        {
   auto attr = this->get_attribute(type);
 
   if(!attr.empty()) {
      return attr[0];
   }
 
   return "";
}

References get_attribute().

get_othernames()

std::multimap< OID, ASN1_String > Botan::AlternativeName::get_othernames

(

)

const

has_field()

bool Botan::AlternativeName::has_field

(

std::string_view

attr

)

const

Definition at line 125 of file asn1_alt_name.cpp.

                                                         {
   return !this->get_attribute(attr).empty();
}

References get_attribute().

has_items()

bool Botan::AlternativeName::has_items

(

)

const

Return true if this has any names set.

Definition at line 55 of file alt_name.cpp.

                                      {
   return this->count() > 0;
}

References count().

ipv4_address()

const std::set< uint32_t > & Botan::AlternativeName::ipv4_address ( ) const

inline

Return the set of IPv4 addresses included in this alternative name.

Definition at line 155 of file pkix_types.h.

{ return m_ipv4_addr; }

Referenced by contents(), get_attribute(), Botan::GeneralName::matches(), and Botan::X509_Certificate::matches_dns_name().

other_names()

const std::set< std::pair< OID, ASN1_String > > & Botan::AlternativeName::other_names ( ) const

inline

Return the set of "other names" included in this alternative name.

Definition at line 159 of file pkix_types.h.

                                                                   {
         return m_othernames;
      }

Referenced by contents().

uris()

const std::set< std::string > & Botan::AlternativeName::uris ( ) const

inline

Return the set of URIs included in this alternative name.

Definition at line 146 of file pkix_types.h.

{ return m_uri; }

Referenced by contents(), Botan::Cert_Extension::CRL_Distribution_Points::Distribution_Point::encode_into(), and get_attribute().

---

The documentation for this class was generated from the following files:

• src/lib/x509/pkix_types.h
• src/lib/x509/alt_name.cpp
• src/lib/x509/asn1_alt_name.cpp