tell download methods the expected hashes

Now that we have all hashes in the acquire system, pass the info down to
the methods, so that it can use it in the request and/or to precheck the
response.

3 files changed, 13 insertions, 0 deletions

diff --git a/apt-pkg/acquire-method.cc b/apt-pkg/acquire-method.cc
index 58d214068..e4a937d1d 100644
--- a/apt-pkg/acquire-method.cc
+++ b/apt-pkg/acquire-method.cc
@@ -351,6 +351,15 @@ int pkgAcqMethod::Run(bool Single)
 	       Tmp->LastModified = 0;
 	    Tmp->IndexFile = StringToBool(LookupTag(Message,"Index-File"),false);
 	    Tmp->FailIgnore = StringToBool(LookupTag(Message,"Fail-Ignore"),false);
+	    Tmp->ExpectedHashes = HashStringList();
+	    for (char const * const * t = HashString::SupportedHashes(); *t != NULL; ++t)
+	    {
+	       std::string tag = "Expected-";
+	       tag.append(*t);
+	       std::string const hash = LookupTag(Message, tag.c_str());
+	       if (hash.empty() == false)
+		  Tmp->ExpectedHashes.push_back(HashString(*t, hash));
+	    }
 	    Tmp->Next = 0;
 	    
 	    // Append it to the list
diff --git a/apt-pkg/acquire-method.h b/apt-pkg/acquire-method.h
index 8a17a5fd5..cbf79f860 100644
--- a/apt-pkg/acquire-method.h
+++ b/apt-pkg/acquire-method.h
@@ -47,6 +47,7 @@ class pkgAcqMethod
       time_t LastModified;
       bool IndexFile;
       bool FailIgnore;
+      HashStringList ExpectedHashes;
    };
    
    struct FetchResult
diff --git a/apt-pkg/acquire-worker.cc b/apt-pkg/acquire-worker.cc
index ec1b2fc46..54be8e99f 100644
--- a/apt-pkg/acquire-worker.cc
+++ b/apt-pkg/acquire-worker.cc
@@ -530,6 +530,9 @@ bool pkgAcquire::Worker::QueueItem(pkgAcquire::Queue::QItem *Item)
    Message.reserve(300);
    Message += "URI: " + Item->URI;
    Message += "\nFilename: " + Item->Owner->DestFile;
+   HashStringList const hsl = Item->Owner->HashSums();
+   for (HashStringList::const_iterator hs = hsl.begin(); hs != hsl.end(); ++hs)
+      Message += "\nExpected-" + hs->HashType() + ": " + hs->HashValue();
    Message += Item->Owner->Custom600Headers();
    Message += "\n\n";