#ifndef APTPKG_HASHES_H
#define APTPKG_HASHES_H
-#ifdef __GNUG__
-#endif
#include <apt-pkg/md5.h>
#include <apt-pkg/sha1.h>
-#include <apt-pkg/sha256.h>
+#include <apt-pkg/sha2.h>
+#include <apt-pkg/macros.h>
-#include <algorithm>
+#include <cstring>
+#include <string>
+#ifndef APT_8_CLEANER_HEADERS
using std::min;
+using std::vector;
+#endif
+#ifndef APT_10_CLEANER_HEADERS
+#include <apt-pkg/fileutl.h>
+#include <algorithm>
+#include <vector>
+#endif
+
+
+class FileFd;
+
+// helper class that contains hash function name
+// and hash
+class HashString
+{
+ protected:
+ std::string Type;
+ std::string Hash;
+ static const char * _SupportedHashes[10];
+
+ // internal helper
+ std::string GetHashForFile(std::string filename) const;
+
+ public:
+ HashString(std::string Type, std::string Hash);
+ HashString(std::string StringedHashString); // init from str as "type:hash"
+ HashString();
+
+ // get hash type used
+ std::string HashType() { return Type; };
+ std::string HashType() const { return Type; };
+ std::string HashValue() const { return Hash; };
+
+ // verify the given filename against the currently loaded hash
+ bool VerifyFile(std::string filename) const;
+
+ // generate a hash string from the given filename
+ bool FromFile(std::string filename);
+
+
+ // helper
+ std::string toStr() const; // convert to str as "type:hash"
+ bool empty() const;
+ bool operator==(HashString const &other) const;
+ bool operator!=(HashString const &other) const;
+
+ // return the list of hashes we support
+ static APT_CONST const char** SupportedHashes();
+};
+
+class HashStringList
+{
+ public:
+ /** find best hash if no specific one is requested
+ *
+ * @param type of the checksum to return, can be \b NULL
+ * @return If type is \b NULL (or the empty string) it will
+ * return the 'best' hash; otherwise the hash which was
+ * specifically requested. If no hash is found \b NULL will be returned.
+ */
+ HashString const * find(char const * const type) const;
+ HashString const * find(std::string const &type) const { return find(type.c_str()); }
+ /** check if the given hash type is supported
+ *
+ * @param type to check
+ * @return true if supported, otherwise false
+ */
+ static APT_PURE bool supported(char const * const type);
+ /** add the given #HashString to the list
+ *
+ * @param hashString to add
+ * @return true if the hash is added because it is supported and
+ * not already a different hash of the same type included, otherwise false
+ */
+ bool push_back(const HashString &hashString);
+ /** @return size of the list of HashStrings */
+ size_t size() const { return list.size(); }
+
+ /** take the 'best' hash and verify file with it
+ *
+ * @param filename to verify
+ * @return true if the file matches the hashsum, otherwise false
+ */
+ bool VerifyFile(std::string filename) const;
+
+ /** is the list empty ?
+ *
+ * @return \b true if the list is empty, otherwise \b false
+ */
+ bool empty() const { return list.empty(); }
+
+ typedef std::vector<HashString>::const_iterator const_iterator;
+
+ /** iterator to the first element */
+ const_iterator begin() const { return list.begin(); }
+
+ /** iterator to the end element */
+ const_iterator end() const { return list.end(); }
+
+ /** start fresh with a clear list */
+ void clear() { list.clear(); }
+
+ /** compare two HashStringList for similarity.
+ *
+ * Two lists are similar if at least one hashtype is in both lists
+ * and the hashsum matches. All hashes are checked, if one doesn't
+ * match false is returned regardless of how many matched before.
+ */
+ bool operator==(HashStringList const &other) const;
+ bool operator!=(HashStringList const &other) const;
+
+ HashStringList() {}
+
+ // simplifying API-compatibility constructors
+ HashStringList(std::string const &hash) {
+ if (hash.empty() == false)
+ list.push_back(HashString(hash));
+ }
+ HashStringList(char const * const hash) {
+ if (hash != NULL && hash[0] != '\0')
+ list.push_back(HashString(hash));
+ }
+
+ private:
+ std::vector<HashString> list;
+};
class Hashes
{
MD5Summation MD5;
SHA1Summation SHA1;
SHA256Summation SHA256;
+ SHA512Summation SHA512;
- inline bool Add(const unsigned char *Data,unsigned long Size)
+ static const int UntilEOF = 0;
+
+ inline bool Add(const unsigned char *Data,unsigned long long Size)
{
- return MD5.Add(Data,Size) && SHA1.Add(Data,Size) && SHA256.Add(Data,Size);
+ return MD5.Add(Data,Size) && SHA1.Add(Data,Size) && SHA256.Add(Data,Size) && SHA512.Add(Data,Size);
};
- inline bool Add(const char *Data) {return Add((unsigned char *)Data,strlen(Data));};
- bool AddFD(int Fd,unsigned long Size);
+ inline bool Add(const char *Data) {return Add((unsigned char const *)Data,strlen(Data));};
+ inline bool AddFD(int const Fd,unsigned long long Size = 0)
+ { return AddFD(Fd, Size, true, true, true, true); };
+ bool AddFD(int const Fd, unsigned long long Size, bool const addMD5,
+ bool const addSHA1, bool const addSHA256, bool const addSHA512);
+ inline bool AddFD(FileFd &Fd,unsigned long long Size = 0)
+ { return AddFD(Fd, Size, true, true, true, true); };
+ bool AddFD(FileFd &Fd, unsigned long long Size, bool const addMD5,
+ bool const addSHA1, bool const addSHA256, bool const addSHA512);
inline bool Add(const unsigned char *Beg,const unsigned char *End)
{return Add(Beg,End-Beg);};
};
HCoop / ntk / apt.git / blobdiff