Botan::Flatfile_Certificate_Store Class Reference

#include <certstor_flatfile.h>

Inheritance diagram for Botan::Flatfile_Certificate_Store:

Public Member Functions
std::vector< X509_DN >	all_subjects () const override
bool	certificate_known (const X509_Certificate &cert) const
std::vector< X509_Certificate >	find_all_certs (const X509_DN &subject_dn, const std::vector< uint8_t > &key_id) const override
virtual std::optional< X509_Certificate >	find_cert (const X509_DN &subject_dn, const std::vector< uint8_t > &key_id) const
std::optional< X509_Certificate >	find_cert_by_pubkey_sha1 (const std::vector< uint8_t > &key_hash) const override
std::optional< X509_Certificate >	find_cert_by_raw_subject_dn_sha256 (const std::vector< uint8_t > &subject_hash) const override
std::optional< X509_CRL >	find_crl_for (const X509_Certificate &subject) const override
	Flatfile_Certificate_Store (const Flatfile_Certificate_Store &)=default
	Flatfile_Certificate_Store (Flatfile_Certificate_Store &&)=default
	Flatfile_Certificate_Store (std::string_view file, bool ignore_non_ca=false)
Flatfile_Certificate_Store &	operator= (const Flatfile_Certificate_Store &)=default
Flatfile_Certificate_Store &	operator= (Flatfile_Certificate_Store &&)=default

Detailed Description

Certificate Store that is backed by a file of PEMs of trusted CAs.

Definition at line 22 of file certstor_flatfile.h.

Constructor & Destructor Documentation

Flatfile_Certificate_Store() [1/3]

Botan::Flatfile_Certificate_Store::Flatfile_Certificate_Store	(	std::string_view	file,
		bool	ignore_non_ca = false )

Construct a new Certificate_Store given a file path to a file including PEMs of trusted self-signed CAs.

Parameters

file	the name of the file to read certificates from
ignore_non_ca	if true, certs that are not self-signed CA certs will be ignored. Otherwise (if false), an exception will be thrown instead.

Definition at line 38 of file certstor_flatfile.cpp.

                                                                                              {
   if(file.empty()) {
      throw Invalid_Argument("Flatfile_Certificate_Store::Flatfile_Certificate_Store invalid file path");
   }
 
   DataSource_Stream file_stream(file);
 
   for(const std::vector<uint8_t>& der : decode_all_certificates(file_stream)) {
      X509_Certificate cert(der);
 
      /*
      * Various weird or misconfigured system roots include intermediate certificates,
      * or even stranger certificates which are not valid for cert issuance at all.
      * Previously this code would error on such cases as an obvious misconfiguration,
      * but we cannot fix the trust store. So instead just ignore any such certificate.
      */
      if(cert.is_self_signed() && cert.is_CA_cert()) {
         m_all_subjects.push_back(cert.subject_dn());
         m_dn_to_cert[cert.subject_dn()].push_back(cert);
         m_pubkey_sha1_to_cert.emplace(cert.subject_public_key_bitstring_sha1(), cert);
         m_subject_dn_sha256_to_cert.emplace(cert.raw_subject_dn_sha256(), cert);
      } else if(!ignore_non_ca) {
         throw Invalid_Argument("Flatfile_Certificate_Store received non CA cert " + cert.subject_dn().to_string());
      }
   }
 
   if(m_all_subjects.empty()) {
      throw Invalid_Argument("Flatfile_Certificate_Store::Flatfile_Certificate_Store cert file is empty");
   }
}

References Botan::X509_Certificate::is_CA_cert(), Botan::X509_Certificate::is_self_signed(), Botan::X509_Certificate::raw_subject_dn_sha256(), Botan::X509_Certificate::subject_dn(), Botan::X509_Certificate::subject_public_key_bitstring_sha1(), and Botan::X509_DN::to_string().

Referenced by Flatfile_Certificate_Store(), Flatfile_Certificate_Store(), operator=(), and operator=().

Flatfile_Certificate_Store() [2/3]

Botan::Flatfile_Certificate_Store::Flatfile_Certificate_Store ( const Flatfile_Certificate_Store & )

default

References Flatfile_Certificate_Store().

Flatfile_Certificate_Store() [3/3]

Botan::Flatfile_Certificate_Store::Flatfile_Certificate_Store ( Flatfile_Certificate_Store && )

default

References Flatfile_Certificate_Store().

Member Function Documentation

all_subjects()

std::vector< X509_DN > Botan::Flatfile_Certificate_Store::all_subjects ( ) const

overridevirtual

Returns

DNs for all certificates managed by the store

Implements Botan::Certificate_Store.

Definition at line 69 of file certstor_flatfile.cpp.

                                                                  {
   return m_all_subjects;
}

Referenced by operator=().

certificate_known()

bool Botan::Certificate_Store::certificate_known ( const X509_Certificate & cert ) const

inlineinherited

Returns

whether the certificate is known

Parameters

cert	certififcate to be searched

Definition at line 70 of file certstor.h.

                                                                 {
         return find_cert(cert.subject_dn(), cert.subject_key_id()).has_value();
      }

References find_cert(), Botan::X509_Certificate::subject_dn(), and Botan::X509_Certificate::subject_key_id().

find_all_certs()

std::vector< X509_Certificate > Botan::Flatfile_Certificate_Store::find_all_certs ( const X509_DN & subject_dn, const std::vector< uint8_t > & key_id ) const

overridevirtual

Find all certificates with a given Subject DN. Subject DN and even the key identifier might not be unique.

Implements Botan::Certificate_Store.

Definition at line 73 of file certstor_flatfile.cpp.

                                                                                                                 {
   std::vector<X509_Certificate> found_certs;
   try {
      const auto certs = m_dn_to_cert.at(subject_dn);
 
      for(const auto& cert : certs) {
         if(key_id.empty() || key_id == cert.subject_key_id()) {
            found_certs.push_back(cert);
         }
      }
   } catch(const std::out_of_range&) {
      return {};
   }
 
   return found_certs;
}

Referenced by operator=().

find_cert()

std::optional< X509_Certificate > Botan::Certificate_Store::find_cert ( const X509_DN & subject_dn, const std::vector< uint8_t > & key_id ) const

virtualinherited

Find a certificate by Subject DN and (optionally) key identifier

Parameters

subject_dn	the subject's distinguished name
key_id	an optional key id

Returns

a matching certificate or nullopt otherwise If more than one certificate in the certificate store matches, then a single value is selected arbitrarily.

Reimplemented in Botan::Certificate_Store_In_Memory, Botan::Certificate_Store_In_SQL, Botan::Certificate_Store_MacOS, Botan::Certificate_Store_Windows, and Botan::System_Certificate_Store.

Definition at line 20 of file certstor.cpp.

                                                                                                     {
   const auto certs = find_all_certs(subject_dn, key_id);
 
   if(certs.empty()) {
      return std::nullopt;
   }
 
   // `count` might be greater than 1, but we'll just select the first match
   return certs.front();
}

References find_all_certs().

Referenced by certificate_known(), Botan::OCSP::Response::find_signing_certificate(), and ~Certificate_Store().

find_cert_by_pubkey_sha1()

std::optional< X509_Certificate > Botan::Flatfile_Certificate_Store::find_cert_by_pubkey_sha1 ( const std::vector< uint8_t > & key_hash ) const

overridevirtual

Find a certificate by searching for one with a matching SHA-1 hash of public key.

Returns

a matching certificate or nullptr otherwise

Implements Botan::Certificate_Store.

Definition at line 91 of file certstor_flatfile.cpp.

                                             {
   if(key_hash.size() != 20) {
      throw Invalid_Argument("Flatfile_Certificate_Store::find_cert_by_pubkey_sha1 invalid hash");
   }
 
   auto found_cert = m_pubkey_sha1_to_cert.find(key_hash);
 
   if(found_cert != m_pubkey_sha1_to_cert.end()) {
      return found_cert->second;
   }
 
   return std::nullopt;
}

Referenced by operator=().

find_cert_by_raw_subject_dn_sha256()

std::optional< X509_Certificate > Botan::Flatfile_Certificate_Store::find_cert_by_raw_subject_dn_sha256 ( const std::vector< uint8_t > & subject_hash ) const

overridevirtual

Find a certificate by searching for one with a matching SHA-256 hash of raw subject name. Used for OCSP.

Parameters

subject_hash

SHA-256 hash of the subject's raw name

Returns

a matching certificate or nullopt otherwise

Implements Botan::Certificate_Store.

Definition at line 106 of file certstor_flatfile.cpp.

                                                 {
   if(subject_hash.size() != 32) {
      throw Invalid_Argument("Flatfile_Certificate_Store::find_cert_by_raw_subject_dn_sha256 invalid hash");
   }
 
   auto found_cert = m_subject_dn_sha256_to_cert.find(subject_hash);
 
   if(found_cert != m_subject_dn_sha256_to_cert.end()) {
      return found_cert->second;
   }
 
   return std::nullopt;
}

Referenced by operator=().

find_crl_for()

std::optional< X509_CRL > Botan::Flatfile_Certificate_Store::find_crl_for ( const X509_Certificate & subject ) const

overridevirtual

Fetching CRLs is not supported by this certificate store. This will always return an empty list.

Reimplemented from Botan::Certificate_Store.

Definition at line 121 of file certstor_flatfile.cpp.

                                                                                                    {
   BOTAN_UNUSED(subject);
   return {};
}

References BOTAN_UNUSED.

Referenced by operator=().

operator=() [1/2]

Flatfile_Certificate_Store & Botan::Flatfile_Certificate_Store::operator= ( const Flatfile_Certificate_Store & )

default

References Flatfile_Certificate_Store().

operator=() [2/2]

Flatfile_Certificate_Store & Botan::Flatfile_Certificate_Store::operator= ( Flatfile_Certificate_Store && )

default

References all_subjects(), find_all_certs(), find_cert_by_pubkey_sha1(), find_cert_by_raw_subject_dn_sha256(), find_crl_for(), and Flatfile_Certificate_Store().

---

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

• src/lib/x509/certstor_flatfile/certstor_flatfile.h
• src/lib/x509/certstor_flatfile/certstor_flatfile.cpp