1 files changed, 115 insertions, 0 deletions
diff --git a/apt-pkg/pkgrecords.h b/apt-pkg/pkgrecords.h
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+++ b/apt-pkg/pkgrecords.h
@@ -0,0 +1,115 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+/* ######################################################################
+   
+   Package Records - Allows access to complete package description records
+                     directly from the file.
+   
+   The package record system abstracts the actual parsing of the 
+   package files. This is different than the generators parser in that
+   it is used to access information not generate information. No 
+   information touched by the generator should be parable from here as
+   it can always be retrieved directly from the cache.
+   
+   ##################################################################### */
+									/*}}}*/
+#ifndef PKGLIB_PKGRECORDS_H
+#define PKGLIB_PKGRECORDS_H
+
+#include <apt-pkg/hashes.h>
+#include <apt-pkg/macros.h>
+#include <apt-pkg/pkgcache.h>
+
+#include <string>
+#include <vector>
+
+class pkgRecords							/*{{{*/
+{
+   public:
+   class Parser;
+   
+   private:
+   /** \brief dpointer placeholder (for later in case we need it) */
+   void * const d;
+   
+   pkgCache &Cache;
+   std::vector<Parser *>Files;
+
+    public:
+   // Lookup function
+   Parser &Lookup(pkgCache::VerFileIterator const &Ver);
+   Parser &Lookup(pkgCache::DescFileIterator const &Desc);
+
+   // Construct destruct
+   explicit pkgRecords(pkgCache &Cache);
+   virtual ~pkgRecords();
+};
+									/*}}}*/
+class pkgRecords::Parser						/*{{{*/
+{
+   protected:
+   
+   virtual bool Jump(pkgCache::VerFileIterator const &Ver) = 0;
+   virtual bool Jump(pkgCache::DescFileIterator const &Desc) = 0;
+   
+   public:
+   friend class pkgRecords;
+   
+   // These refer to the archive file for the Version
+   virtual std::string FileName() {return std::string();};
+   virtual std::string SourcePkg() {return std::string();};
+   virtual std::string SourceVer() {return std::string();};
+
+   /** return all known hashes in this record.
+    *
+    * For authentication proposes packages come with hashsums which
+    * this method is supposed to parse and return so that clients can
+    * choose the hash to be used.
+    */
+   virtual HashStringList Hashes() const { return HashStringList(); };
+   APT_DEPRECATED_MSG("Use .Hashes instead of a hardcoded hash algorithm") std::string MD5Hash() const { return GetHashFromHashes("MD5Sum"); };
+   APT_DEPRECATED_MSG("Use .Hashes instead of a hardcoded hash algorithm") std::string SHA1Hash() const { return GetHashFromHashes("SHA1"); };
+   APT_DEPRECATED_MSG("Use .Hashes instead of a hardcoded hash algorithm") std::string SHA256Hash() const { return GetHashFromHashes("SHA256"); };
+   APT_DEPRECATED_MSG("Use .Hashes instead of a hardcoded hash algorithm") std::string SHA512Hash() const { return GetHashFromHashes("SHA512"); };
+
+   // These are some general stats about the package
+   virtual std::string Maintainer() {return std::string();};
+   /** return short description in language from record.
+    *
+    * @see #LongDesc
+    */
+   virtual std::string ShortDesc(std::string const &/*lang*/) {return std::string();};
+   /** return long description in language from record.
+    *
+    * If \b lang is empty the "best" available language will be
+    * returned as determined by the APT::Languages configuration.
+    * If a (requested) language can't be found in this record an empty
+    * string will be returned.
+    */
+   virtual std::string LongDesc(std::string const &/*lang*/) {return std::string();};
+   std::string ShortDesc() {return ShortDesc("");};
+   std::string LongDesc() {return LongDesc("");};
+
+   virtual std::string Name() {return std::string();};
+   virtual std::string Homepage() {return std::string();}
+
+   // An arbitrary custom field
+   virtual std::string RecordField(const char * /*fieldName*/) { return std::string();};
+
+   // The record in binary form
+   virtual void GetRec(const char *&Start,const char *&Stop) {Start = Stop = 0;};
+
+   Parser();
+   virtual ~Parser();
+
+   private:
+   void * const d;
+   APT_HIDDEN std::string GetHashFromHashes(char const * const type) const
+   {
+      HashStringList const hashes = Hashes();
+      HashString const * const hs = hashes.find(type);
+      return hs != NULL ? hs->HashValue() : "";
+   };
+};
+									/*}}}*/
+#endif