From 3a2b39ee602dd5a98b8fdaee2f1c8e0b13a276e2 Mon Sep 17 00:00:00 2001
From: David Kalnischkies <kalnischkies@gmail.com>
Date: Sun, 18 Aug 2013 23:27:24 +0200
Subject: use 'best' hash for source authentication

Collect all hashes we can get from the source record and put them into a
HashStringList so that 'apt-get source' can use it instead of using
always the MD5sum.

We therefore also deprecate the MD5 struct member in favor of the list.

While at it, the parsing of the Files is enhanced so that records which
miss "Files" (aka MD5 checksums) are still searched for other checksums
as they include just as much data, just not with a nice and catchy name.

This is a cherry-pick of 1262d35 with some dirty tricks to preserve ABI.

LP: 1098738
---
 apt-pkg/srcrecords.cc | 31 ++++++++++++++++++++++++++++++-
 1 file changed, 30 insertions(+), 1 deletion(-)

(limited to 'apt-pkg/srcrecords.cc')

diff --git a/apt-pkg/srcrecords.cc b/apt-pkg/srcrecords.cc
index 81b1c545d..3175ee75f 100644
--- a/apt-pkg/srcrecords.cc
+++ b/apt-pkg/srcrecords.cc
@@ -14,6 +14,7 @@
 #include<config.h>
 
 #include <apt-pkg/srcrecords.h>
+#include <apt-pkg/debsrcrecords.h>
 #include <apt-pkg/error.h>
 #include <apt-pkg/sourcelist.h>
 #include <apt-pkg/metaindex.h>
@@ -147,5 +148,33 @@ const char *pkgSrcRecords::Parser::BuildDepType(unsigned char const &Type)
    return fields[Type];
 }
 									/*}}}*/
+bool pkgSrcRecords::Parser::Files2(std::vector<pkgSrcRecords::File2> &F2)/*{{{*/
+{
+   debSrcRecordParser * const deb = dynamic_cast<debSrcRecordParser*>(this);
+   if (deb != NULL)
+      return deb->Files2(F2);
 
-
+   std::vector<pkgSrcRecords::File> F;
+   if (Files(F) == false)
+      return false;
+   for (std::vector<pkgSrcRecords::File>::const_iterator f = F.begin(); f != F.end(); ++f)
+   {
+      pkgSrcRecords::File2 f2;
+#if __GNUC__ >= 4
+	#pragma GCC diagnostic push
+	#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
+#endif
+      f2.MD5Hash = f->MD5Hash;
+      f2.Size = f->Size;
+      f2.Hashes.push_back(HashString("MD5Sum", f->MD5Hash));
+      f2.FileSize = f->Size;
+#if __GNUC__ >= 4
+	#pragma GCC diagnostic pop
+#endif
+      f2.Path = f->Path;
+      f2.Type = f->Type;
+      F2.push_back(f2);
+   }
+   return true;
+}
+									/*}}}*/
-- 
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