Botan 2.19.1
Crypto and TLS for C&
Public Member Functions | List of all members
Botan::Flatfile_Certificate_Store Class Referencefinal

#include <certstor_flatfile.h>

Inheritance diagram for Botan::Flatfile_Certificate_Store:
Botan::Certificate_Store

Public Member Functions

std::vector< X509_DNall_subjects () const override
 
bool certificate_known (const X509_Certificate &cert) const
 
std::vector< std::shared_ptr< const X509_Certificate > > find_all_certs (const X509_DN &subject_dn, const std::vector< uint8_t > &key_id) const override
 
virtual std::shared_ptr< const X509_Certificatefind_cert (const X509_DN &subject_dn, const std::vector< uint8_t > &key_id) const
 
std::shared_ptr< const X509_Certificatefind_cert_by_pubkey_sha1 (const std::vector< uint8_t > &key_hash) const override
 
std::shared_ptr< const X509_Certificatefind_cert_by_raw_subject_dn_sha256 (const std::vector< uint8_t > &subject_hash) const override
 
std::shared_ptr< const X509_CRLfind_crl_for (const X509_Certificate &subject) const override
 
 Flatfile_Certificate_Store (const Flatfile_Certificate_Store &)=default
 
 Flatfile_Certificate_Store (const std::string &file, bool ignore_non_ca=false)
 
 Flatfile_Certificate_Store (Flatfile_Certificate_Store &&)=default
 
Flatfile_Certificate_Storeoperator= (const Flatfile_Certificate_Store &)=default
 
Flatfile_Certificate_Storeoperator= (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 ( const std::string &  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
filethe name of the file to read certificates from
ignore_non_caif true, certs that are not self-signed CA certs will be ignored. Otherwise (if false), an exception will be thrown instead.

Definition at line 41 of file certstor_flatfile.cpp.

42 {
43 if(file.empty())
44 {
45 throw Invalid_Argument("Flatfile_Certificate_Store::Flatfile_Certificate_Store invalid file path");
46 }
47
48 DataSource_Stream file_stream(file);
49
50 for(const std::vector<uint8_t>& der : decode_all_certificates(file_stream))
51 {
52 std::shared_ptr<const X509_Certificate> cert = std::make_shared<const X509_Certificate>(der.data(), der.size());
53
54 /*
55 * Various weird or misconfigured system roots include intermediate certificates,
56 * or even stranger certificates which are not valid for cert issuance at all.
57 * Previously this code would error on such cases as an obvious misconfiguration,
58 * but we cannot fix the trust store. So instead just ignore any such certificate.
59 */
60 if(cert->is_self_signed() && cert->is_CA_cert())
61 {
62 m_all_subjects.push_back(cert->subject_dn());
63 m_dn_to_cert[cert->subject_dn()].push_back(cert);
64 m_pubkey_sha1_to_cert.emplace(cert->subject_public_key_bitstring_sha1(), cert);
65 m_subject_dn_sha256_to_cert.emplace(cert->raw_subject_dn_sha256(), cert);
66 }
67 else if(!ignore_non_ca)
68 {
69 throw Invalid_Argument("Flatfile_Certificate_Store received non CA cert " + cert->subject_dn().to_string());
70 }
71 }
72
73 if(m_all_subjects.empty())
74 {
75 throw Invalid_Argument("Flatfile_Certificate_Store::Flatfile_Certificate_Store cert file is empty");
76 }
77 }

◆ Flatfile_Certificate_Store() [2/3]

Botan::Flatfile_Certificate_Store::Flatfile_Certificate_Store ( const Flatfile_Certificate_Store )
default

◆ Flatfile_Certificate_Store() [3/3]

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

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 79 of file certstor_flatfile.cpp.

80 {
81 return m_all_subjects;
82 }

◆ certificate_known()

bool Botan::Certificate_Store::certificate_known ( const X509_Certificate cert) const
inlineinherited
Returns
whether the certificate is known
Parameters
certcertififcate to be searched

Definition at line 72 of file certstor.h.

73 {
74 return find_cert(cert.subject_dn(), cert.subject_key_id()) != nullptr;
75 }
virtual std::shared_ptr< const X509_Certificate > find_cert(const X509_DN &subject_dn, const std::vector< uint8_t > &key_id) const
Definition: certstor.cpp:20

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

◆ find_all_certs()

std::vector< std::shared_ptr< const 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 84 of file certstor_flatfile.cpp.

87 {
88 std::vector<std::shared_ptr<const X509_Certificate>> found_certs;
89 try
90 {
91 const auto certs = m_dn_to_cert.at(subject_dn);
92
93 for(auto cert : certs)
94 {
95 if(key_id.empty() || key_id == cert->subject_key_id())
96 {
97 found_certs.push_back(cert);
98 }
99 }
100 }
101 catch(const std::out_of_range&)
102 {
103 return {};
104 }
105
106 return found_certs;
107 }

◆ find_cert()

std::shared_ptr< const 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_dnthe subject's distinguished name
key_idan optional key id
Returns
a matching certificate or nullptr 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::System_Certificate_Store, Botan::Certificate_Store_MacOS, and Botan::Certificate_Store_Windows.

Definition at line 20 of file certstor.cpp.

21 {
22 const auto certs = find_all_certs(subject_dn, key_id);
23
24 if(certs.empty())
25 {
26 return nullptr; // certificate not found
27 }
28
29 // `count` might be greater than 1, but we'll just select the first match
30 return certs.front();
31 }
virtual std::vector< std::shared_ptr< const X509_Certificate > > find_all_certs(const X509_DN &subject_dn, const std::vector< uint8_t > &key_id) const =0

References Botan::Certificate_Store::find_all_certs().

◆ find_cert_by_pubkey_sha1()

std::shared_ptr< const 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 110 of file certstor_flatfile.cpp.

111 {
112 if(key_hash.size() != 20)
113 {
114 throw Invalid_Argument("Flatfile_Certificate_Store::find_cert_by_pubkey_sha1 invalid hash");
115 }
116
117 auto found_cert = m_pubkey_sha1_to_cert.find(key_hash);
118
119 if(found_cert != m_pubkey_sha1_to_cert.end())
120 {
121 return found_cert->second;
122 }
123
124 return nullptr;
125 }

◆ find_cert_by_raw_subject_dn_sha256()

std::shared_ptr< const 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_hashSHA-256 hash of the subject's raw name
Returns
a matching certificate or nullptr otherwise

Implements Botan::Certificate_Store.

Definition at line 128 of file certstor_flatfile.cpp.

129 {
130 if(subject_hash.size() != 32)
131 { throw Invalid_Argument("Flatfile_Certificate_Store::find_cert_by_raw_subject_dn_sha256 invalid hash"); }
132
133 auto found_cert = m_subject_dn_sha256_to_cert.find(subject_hash);
134
135 if(found_cert != m_subject_dn_sha256_to_cert.end())
136 {
137 return found_cert->second;
138 }
139
140 return nullptr;
141 }

◆ find_crl_for()

std::shared_ptr< const 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 143 of file certstor_flatfile.cpp.

144 {
145 BOTAN_UNUSED(subject);
146 return {};
147 }
#define BOTAN_UNUSED(...)
Definition: assert.h:142

References BOTAN_UNUSED.

◆ operator=() [1/2]

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

◆ operator=() [2/2]

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

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