Adding freenet

I don't build freenet_ext or bcprov, I just take the jar.
Freenet irc people told me that freenet_ext barely changes and it's a hell to build.

pkgs/applications/networking/p2p/freenet/default.nix

@@ -0,0 +1,54 @@
+{ stdenv, fetchurl, apacheAntOpenJDK, jre }:
+
+let
+  # The .gitmodules in freenet-official-20130413-eccc9b3198
+  # points to freenet-contrib-staging-ce3b7d5
+  freenet_ext = fetchurl {
+    url = https://downloads.freenetproject.org/latest/freenet-ext.jar;
+    sha1 = "507ab3f6ee91f47c187149136fb6d6e98f9a8c7f";
+  };
+
+  bcprov = fetchurl {
+    url = http://www.bouncycastle.org/download/bcprov-jdk15on-148.jar;
+    sha256 = "12129q8rmqwlvj6z4j0gc3w0hq5ccrkf2gdlsggp3iws7cp7wjw0";
+  };
+in
+stdenv.mkDerivation {
+  name = "freenet-official-20130413-eccc9b3198";
+
+  src = fetchurl {
+    url = https://github.com/freenet/fred-official/tarball/eccc9b3198;
+    name = "freenet-official-eccc9b3198.tar.gz";
+    sha256 = "0x0s8gmb95770l7968r99sq0588vf0n1687ivc2hixar19cw620y";
+  };
+
+  patchPhase = ''
+    cp ${freenet_ext} lib/freenet/freenet-ext.jar
+    cp ${bcprov} lib/bcprov.jar
+
+    sed '/antcall.*-ext/d' -i build.xml
+  '';
+
+  buildInputs = [ apacheAntOpenJDK jre ];
+
+  buildPhase = "ant package-only";
+
+  installPhase = ''
+    ensureDir $out/share/freenet $out/bin
+    cp lib/freenet/freenet-ext.jar $out/share/freenet
+    cp dist/freenet.jar $out/share/freenet
+
+    cat <<EOF > $out/bin/freenet
+    ${jre}/bin/java -cp $out/share/freenet/freenet-ext.jar:$out/share/freenet/freenet.jar \\
+      -Xmx1024M freenet.node.NodeStarter
+    EOF
+    chmod +x $out/bin/freenet
+  '';
+
+  meta = { 
+    description = "Decentralised and censorship-resistant network";
+    homepage = https://freenetproject.org/;
+    license = "GPLv2+";
+    platforms = with stdenv.lib.platforms; linux;
+  };
+}

pkgs/top-level/all-packages.nix

@@ -7057,6 +7057,8 @@ let
     jre = jdk;
   };
 
+  freenet = callPackage ../applications/networking/p2p/freenet { };
+
   freepv = callPackage ../applications/graphics/freepv { };
 
   xfontsel = callPackage ../applications/misc/xfontsel { };