From 1a953d5f9394cd03e128aabb9b59eda62023fc9e Mon Sep 17 00:00:00 2001
From: Tatsuhiro Tsujikawa <tatsuhiro.t@gmail.com>
Date: Fri, 10 May 2013 21:51:41 +0900
Subject: [PATCH] Add DownloadHandle::getInfohash() and getPieceLength()

---
 src/aria2api.cc            | 28 ++++++++++++++++++++++++++++
 src/includes/aria2/aria2.h |  9 +++++++++
 2 files changed, 37 insertions(+)

diff --git a/src/aria2api.cc b/src/aria2api.cc
index a23e0fea..87555929 100644
--- a/src/aria2api.cc
+++ b/src/aria2api.cc
@@ -58,6 +58,10 @@
 #include "RpcMethodImpl.h"
 #include "console.h"
 #include "KeepRunningCommand.h"
+#include "A2STR.h"
+#ifdef ENABLE_BITTORRENT
+# include "bittorrent_helper.h"
+#endif // ENABLE_BITTORRENT
 
 namespace aria2 {
 
@@ -507,6 +511,22 @@ struct RequestGroupDH : public DownloadHandle {
   {
     return ts.uploadSpeed;
   }
+  virtual const std::string& getInfoHash()
+  {
+#ifdef ENABLE_BITTORRENT
+    if(group->getDownloadContext()->hasAttribute(CTX_ATTR_BT)) {
+      SharedHandle<TorrentAttribute> torrentAttrs =
+        bittorrent::getTorrentAttrs(group->getDownloadContext());
+      return torrentAttrs->infoHash;
+    }
+#endif // ENABLE_BITTORRENT
+    return A2STR::NIL;
+  }
+  virtual size_t getPieceLength()
+  {
+    const SharedHandle<DownloadContext>& dctx = group->getDownloadContext();
+    return dctx->getPieceLength();
+  }
   virtual size_t getNumPieces()
   {
     return group->getDownloadContext()->getNumPieces();
@@ -603,6 +623,14 @@ struct DownloadResultDH : public DownloadHandle {
   {
     return 0;
   }
+  virtual const std::string& getInfoHash()
+  {
+    return dr->infoHash;
+  }
+  virtual size_t getPieceLength()
+  {
+    return dr->pieceLength;
+  }
   virtual size_t getNumPieces()
   {
     return dr->numPieces;
diff --git a/src/includes/aria2/aria2.h b/src/includes/aria2/aria2.h
index 8f0500d2..97130e25 100644
--- a/src/includes/aria2/aria2.h
+++ b/src/includes/aria2/aria2.h
@@ -460,6 +460,15 @@ public:
    * Returns upload speed of this download measured in bytes/sec.
    */
   virtual int getUploadSpeed() = 0;
+  /**
+   * Returns 20 bytes InfoHash if BitTorrent transfer is
+   * involved. Otherwise the empty string is returned.
+   */
+  virtual const std::string& getInfoHash() = 0;
+  /**
+   * Returns piece length in bytes.
+   */
+  virtual size_t getPieceLength() = 0;
   /**
    * Returns the number of pieces.
    */