16#include <openssl/evp.h>
17#include <openssl/conf.h>
18#include <openssl/engine.h>
25#include <zypp-core/Digest.h>
26#include <zypp-core/base/PtrTypes.h>
33 {
static std::string _type(
"md5" );
return _type; }
36 {
static std::string _type(
"sha1" );
return _type; }
39 {
static std::string _type(
"sha224" );
return _type; }
42 {
static std::string _type(
"sha256" );
return _type; }
45 {
static std::string _type(
"sha384" );
return _type; }
48 {
static std::string _type(
"sha512" );
return _type; }
57 typedef zypp::shared_ptr<EVP_MD_CTX>
EvpDataPtr;
64 unsigned char md_value[EVP_MAX_MD_SIZE];
92 bool Digest::P::maybeInit()
94 if(!openssl_digests_added)
97 ENGINE_load_builtin_engines();
98 ENGINE_register_all_complete();
99 OpenSSL_add_all_digests();
100 openssl_digests_added =
true;
105 md = EVP_get_digestbyname(name.c_str());
109#if OPENSSL_VERSION_NUMBER < 0x10100000L
110 EvpDataPtr tmp_mdctx(EVP_MD_CTX_create(), EVP_MD_CTX_destroy);
112 EvpDataPtr tmp_mdctx(EVP_MD_CTX_new(), EVP_MD_CTX_free);
117 if (!EVP_DigestInit_ex(tmp_mdctx.get(), md, NULL)) {
122 ::memset(md_value, 0,
sizeof(md_value));
126 mdctx.swap(tmp_mdctx);
131 void Digest::P::cleanup()
137 Digest::Digest() : _dp(new P())
146 bool Digest::create(
const std::string& name)
148 if(name.empty())
return false;
155 return _dp->maybeInit();
158 const std::string& Digest::name()
169 (void)EVP_DigestFinal_ex(_dp->mdctx.get(), _dp->md_value, &_dp->md_len);
170 _dp->finalized =
true;
172 if(!EVP_DigestInit_ex(_dp->mdctx.get(), _dp->md, NULL))
174 _dp->finalized =
false;
175 _dp->bytesHashed = 0;
179 std::string Digest::digest()
181 return digestVectorToString( digestVector() );
184 std::string Digest::digestVectorToString(
const UByteArray &vec)
187 return std::string();
189 std::vector<char> resData ( vec.size()*2 + 1,
'\0' );
190 char *mdtxt = &resData[0];
191 for(
unsigned i = 0; i < vec.size(); ++i)
193 ::snprintf( mdtxt+(i*2), 3,
"%02hhx", vec[i]);
195 return std::string( resData.data() );
198#ifdef __cpp_lib_string_view
200 template <
typename BArr>
201 BArr hexStrToBArr ( std::string_view &&
str ) {
203 for ( std::string::size_type i = 0; i <
str.length(); i+=2 )
205 #define c2h(c) (((c)>='0' && (c)<='9') ? ((c)-'0') \
206 : ((c)>='a' && (c)<='f') ? ((c)-('a'-10)) \
207 : ((c)>='A' && (c)<='F') ? ((c)-('A'-10)) \
216 bytes.back() = (bytes.back() << 4) | v;
223 ByteArray Digest::hexStringToByteArray(std::string_view
str)
225 return hexStrToBArr<ByteArray>( std::move(
str) );
228 UByteArray Digest::hexStringToUByteArray( std::string_view
str )
230 return hexStrToBArr<UByteArray>( std::move(
str) );
234 UByteArray Digest::digestVector()
237 if(!_dp->maybeInit())
242 if(!EVP_DigestFinal_ex(_dp->mdctx.get(), _dp->md_value, &_dp->md_len))
244 _dp->finalized =
true;
246 r.reserve(_dp->md_len);
247 for(
unsigned i = 0; i < _dp->md_len; ++i)
248 r.push_back(_dp->md_value[i]);
252 bool Digest::update(
const char* bytes,
size_t len)
259 if(!_dp->maybeInit())
265 if(!_dp->maybeInit())
269 if(!EVP_DigestUpdate(_dp->mdctx.get(),
reinterpret_cast<const unsigned char*
>(bytes), len))
272 _dp->bytesHashed += len;
276 bool Digest::update(std::istream &is,
size_t bufsize)
286 is.read(buf, bufsize);
287 readed = is.gcount();
288 if(readed && !update(buf, readed))
295 ByteCount Digest::bytesHashed()
const
297 return _dp->bytesHashed;
300 std::string Digest::digest(
const std::string& name, std::istream& is,
size_t bufsize)
302 if(name.empty() || !is)
303 return std::string();
306 if(!digest.create(name))
307 return std::string();
309 if ( !digest.update( is, bufsize ))
310 return std::string();
312 return digest.digest();
315 std::string Digest::digest(
const std::string & name,
const std::string & input,
size_t bufsize )
317 std::istringstream is( input );
318 return digest( name, is, bufsize );
Store and operate with byte count.
const P & operator=(const P &p)
unsigned char md_value[EVP_MAX_MD_SIZE]
static bool openssl_digests_added
zypp::ByteCount bytesHashed
zypp::shared_ptr< EVP_MD_CTX > EvpDataPtr
static const std::string & md5()
md5
static const std::string & sha384()
sha384
static const std::string & sha512()
sha512
static const std::string & sha1()
sha1
static const std::string & sha256()
sha256
static const std::string & sha224()
sha224
String related utilities and Regular expression matching.
Easy-to use interface to the ZYPP dependency resolver.