basic infrastructure for banning unwanted file content

libretroshare/src/file_sharing/p3filelists.cc

@@ -1855,6 +1855,47 @@ bool p3FileDatabase::locked_generateAndSendSyncRequest(RemoteDirectoryStorage *r
 }
 
 
+// Unwanted content filtering system
+
+bool p3FileDatabase::banFile(const RsFileHash& real_file_hash, const std::string& filename, uint64_t file_size)
+{
+	{
+		RS_STACK_MUTEX(mFLSMtx) ;
+		BannedFileEntry& entry(mPrimaryBanList[real_file_hash]) ;	// primary list (user controlled) of files banned from FT search and forwarding. map<real hash, BannedFileEntry>
+
+		entry.filename = filename ;
+		entry.size = file_size ;
+		entry.ban_time_stamp = time(NULL);
+
+        RsFileHash hash_of_hash ;
+        ftServer::encryptHash(real_file_hash,hash_of_hash) ;
+
+        mBannedFileList.insert(real_file_hash) ;
+        mBannedFileList.insert(hash_of_hash) ;
+	}
+
+    IndicateConfigChanged();
+	return true;
+}
+bool p3FileDatabase::unbanFile(const RsFileHash& real_file_hash)
+{
+    {
+		RS_STACK_MUTEX(mFLSMtx) ;
+		mPrimaryBanList.erase(real_file_hash) ;
+    }
+
+    IndicateConfigChanged();
+    return true;
+}
+bool p3FileDatabase::getPrimaryBannedFilesList(std::map<RsFileHash,BannedFileEntry>& banned_files)
+{
+	RS_STACK_MUTEX(mFLSMtx) ;
+	banned_files = mPrimaryBanList;
+
+    return true ;
+}
+
+
 
 
 

libretroshare/src/file_sharing/p3filelists.h

@@ -132,6 +132,10 @@ class p3FileDatabase: public p3Service, public p3Config, public ftSearch //, pub
 		void setMaxShareDepth(int i) ;
 		int  maxShareDepth() const ;
 
+		bool banFile(const RsFileHash& real_file_hash, const std::string& filename, uint64_t file_size) ;
+		bool unbanFile(const RsFileHash& real_file_hash);
+		bool getPrimaryBannedFilesList(std::map<RsFileHash,BannedFileEntry>& banned_files) ;
+
         // computes/gathers statistics about shared directories
 
 		int getSharedDirStatistics(const RsPeerId& pid,SharedDirStats& stats);
@@ -244,5 +248,11 @@ class p3FileDatabase: public p3Service, public p3Config, public ftSearch //, pub
         std::string mFileSharingDir ;
         time_t mLastCleanupTime;
         time_t mLastDataRecvTS ;
+
+        // file filtering. Not explicitly related to shared files, but
+        //
+
+		std::map<RsFileHash,BannedFileEntry> mPrimaryBanList ;	// primary list (user controlled) of files banned from FT search and forwarding. map<real hash, BannedFileEntry>
+		std::set<RsFileHash> mBannedFileList ;	// list of banned hashes. This include original hashs and H(H(f)) when coming from friends.
 };
 

libretroshare/src/file_sharing/rsfilelistitems.cc

@@ -41,6 +41,10 @@ void RsFileListsSyncResponseItem::serial_process(RsGenericSerializer::SerializeJ
     RsTypeSerializer::serial_process<uint64_t> (j,ctx,request_id,               "request_id") ;
     RsTypeSerializer::serial_process<RsTlvItem>(j,ctx,directory_content_data,   "directory_content_data") ;
 }
+void RsFileListsBannedHashesItem::serial_process(RsGenericSerializer::SerializeJob j,RsGenericSerializer::SerializeContext& ctx)
+{
+    RsTypeSerializer::serial_process(j,ctx,encrypted_hashes,"encrypted_hashes") ;
+}
 
 RsItem *RsFileListsSerialiser::create_item(uint16_t service,uint8_t type) const
 {
@@ -51,6 +55,7 @@ RsItem *RsFileListsSerialiser::create_item(uint16_t service,uint8_t type) const
     {
     case RS_PKT_SUBTYPE_FILELISTS_SYNC_REQ_ITEM:      return new RsFileListsSyncRequestItem();
     case RS_PKT_SUBTYPE_FILELISTS_SYNC_RSP_ITEM:      return new RsFileListsSyncResponseItem();
+    case RS_PKT_SUBTYPE_FILELISTS_BANNED_HASHES_ITEM: return new RsFileListsBannedHashesItem();
     default:
         return NULL ;
     }

libretroshare/src/file_sharing/rsfilelistitems.h

@@ -34,11 +34,10 @@
 
 #include "serialiser/rsserializer.h"
 
-// These items have "flag type" numbers, but this is not used.
-
 const uint8_t RS_PKT_SUBTYPE_FILELISTS_SYNC_REQ_ITEM      = 0x01;
 const uint8_t RS_PKT_SUBTYPE_FILELISTS_SYNC_RSP_ITEM      = 0x02;
 const uint8_t RS_PKT_SUBTYPE_FILELISTS_CONFIG_ITEM        = 0x03;
+const uint8_t RS_PKT_SUBTYPE_FILELISTS_BANNED_HASHES_ITEM = 0x04;
 
 /*!
  * Base class for filelist sync items
@@ -103,6 +102,17 @@ public:
     RsTlvBinaryData directory_content_data ;	// encoded binary data. This allows to vary the encoding format, in a way that is transparent to the serialiser.
 };
 
+class RsFileListsBannedHashesItem: public RsFileListsItem
+{
+public:
+	RsFileListsBannedHashesItem() : RsFileListsItem(RS_PKT_SUBTYPE_FILELISTS_BANNED_HASHES_ITEM){}
+
+    virtual void clear();
+	virtual void serial_process(RsGenericSerializer::SerializeJob j,RsGenericSerializer::SerializeContext& ctx);
+
+    std::set<RsFileHash> encrypted_hashes ;// hash of hash for each banned file.
+};
+
 class RsFileListsSerialiser : public RsServiceSerializer
 {
 public:

libretroshare/src/ft/ftserver.cc

@@ -1832,3 +1832,17 @@ bool    ftServer::addConfiguration(p3ConfigMgr *cfgmgr)
 	return true;
 }
 
+// Offensive content file filtering
+
+int ftServer::banFile(const RsFileHash& real_file_hash, const std::string& filename, uint64_t file_size)
+{
+    return mFileDatabase->banFile(real_file_hash,filename,file_size) ;
+}
+int ftServer::unbanFile(const RsFileHash& real_file_hash)
+{
+    return mFileDatabase->unbanFile(real_file_hash) ;
+}
+bool ftServer::getPrimaryBannedFilesList(std::map<RsFileHash,BannedFileEntry>& banned_files)
+{
+    return mFileDatabase->getPrimaryBannedFilesList(banned_files) ;
+}

libretroshare/src/ft/ftserver.h

@@ -192,6 +192,10 @@ public:
     virtual int SearchBoolExp(RsRegularExpression::Expression * exp, std::list<DirDetails> &results,FileSearchFlags flags,const RsPeerId& peer_id);
 	virtual int getSharedDirStatistics(const RsPeerId& pid, SharedDirStats& stats) ;
 
+    virtual int banFile(const RsFileHash& real_file_hash, const std::string& filename, uint64_t file_size) ;
+    virtual int unbanFile(const RsFileHash& real_file_hash);
+    virtual bool getPrimaryBannedFilesList(std::map<RsFileHash,BannedFileEntry>& banned_files) ;
+
     /***
          * Utility Functions
          ***/
@@ -237,6 +241,8 @@ public:
 	virtual bool ignoreDuplicates() ;
 	virtual void setIgnoreDuplicates(bool ignore) ;
 
+    static bool encryptHash(const RsFileHash& hash, RsFileHash& hash_of_hash);
+
     /***************************************************************/
     /*************** Data Transfer Interface ***********************/
     /***************************************************************/
@@ -282,7 +288,6 @@ protected:
     // fnds out what is the real hash of encrypted hash hash
     bool findRealHash(const RsFileHash& hash, RsFileHash& real_hash);
     bool findEncryptedHash(const RsPeerId& virtual_peer_id, RsFileHash& encrypted_hash);
-    bool encryptHash(const RsFileHash& hash, RsFileHash& hash_of_hash);
 
 	bool checkUploadLimit(const RsPeerId& pid,const RsFileHash& hash);
 private:

libretroshare/src/retroshare/rsfiles.h

@@ -162,6 +162,13 @@ public:
 	uint64_t mTotalSize ;
 };
 
+struct BannedFileEntry
+{
+    uint64_t size ;
+    std::string filename ;
+    time_t ban_time_stamp;
+};
+
 class RsFiles
 {
 public:
@@ -261,6 +268,10 @@ public:
         virtual int SearchBoolExp(RsRegularExpression::Expression * exp, std::list<DirDetails> &results,FileSearchFlags flags,const RsPeerId& peer_id) = 0;
 		virtual int getSharedDirStatistics(const RsPeerId& pid, SharedDirStats& stats) =0;
 
+		virtual int banFile(const RsFileHash& real_file_hash, const std::string& filename, uint64_t file_size) =0;
+		virtual int unbanFile(const RsFileHash& real_file_hash)=0;
+    	virtual bool getPrimaryBannedFilesList(std::map<RsFileHash,BannedFileEntry>& banned_files) =0;
+
 		/***
 		 * Utility Functions.
 		 ***/

retroshare-gui/src/gui/FileTransfer/SearchDialog.cpp

@@ -54,6 +54,7 @@
 #define IMAGE_COLLVIEW             ":/images/library_view.png"
 #define IMAGE_COLLOPEN             ":/images/library.png"
 #define IMAGE_COPYLINK             ":/images/copyrslink.png"
+#define IMAGE_BANFILE              ":/icons/biohazard_red.png"
 
 /* Key for UI Preferences */
 #define UI_PREF_ADVANCED_SEARCH  "UIOptions/AdvancedSearch"
@@ -327,6 +328,7 @@ void SearchDialog::searchResultWidgetCustomPopupMenu( QPoint /*point*/ )
 	QMenu contextMnu(this) ;
 
 	contextMnu.addAction(QIcon(IMAGE_START), tr("Download"), this, SLOT(download())) ;
+	contextMnu.addAction(QIcon(IMAGE_BANFILE), tr("Mark as bad"), this, SLOT(ban())) ;
 	contextMnu.addSeparator();//--------------------------------------
 
 	contextMnu.addAction(QIcon(IMAGE_COPYLINK), tr("Copy RetroShare Link"), this, SLOT(copyResultLink())) ;
@@ -406,22 +408,44 @@ void SearchDialog::download()
 				std::cout << "isuing file request from search dialog: -"
 				          << (item->text(SR_NAME_COL)).toStdString()
 				          << "-" << hash << "-" << (item->text(SR_SIZE_COL)).toULongLong() << "-ids=" ;
-				for(std::list<RsPeerId>::const_iterator it(srcIds.begin()); it!=srcIds.end(); ++it) {
+				for(std::list<RsPeerId>::const_iterator it(srcIds.begin()); it!=srcIds.end(); ++it)
 					std::cout << *it << "-" << std::endl;
-				}//for(std::list<RsPeerId>::const_iterator
+
-				//QColor foreground = QColor(0, 128, 0); // green
 				QColor foreground = textColorDownloading();
 				QBrush brush(foreground);
 				for (int i = 0; i < item->columnCount(); ++i)
-				{
 					item->setForeground(i, brush);
 			}
-			}//if(!rsFiles -> FileRequest(
+		}
-		}//if (item->text(SR_HASH_COL).isEmpty())
+	}
-	}//for (int i = 0
+	if (attemptDownloadLocal)
-	if (attemptDownloadLocal) {
 		QMessageBox::information(this, tr("Download Notice"), tr("Skipping Local Files")) ;
-	}//if (attemptDownloadLocal)
+}
+
+void SearchDialog::ban()
+{
+	/* should also be able to handle multi-selection  */
+
+	QList<QTreeWidgetItem*> itemsForDownload = ui.searchResultWidget->selectedItems() ;
+	int numdls = itemsForDownload.size() ;
+	QTreeWidgetItem * item ;
+
+	for (int i = 0; i < numdls; ++i)
+    {
+		item = itemsForDownload.at(i) ;
+		 //  call the download
+		// *
+		if(!item->text(SR_HASH_COL).isEmpty())
+		{
+			std::cerr << "SearchDialog::download() Calling File Ban" << std::endl ;
+
+			RsFileHash hash( item->text(SR_HASH_COL).toStdString()) ;
+
+			rsFiles -> banFile( hash, (item->text(SR_NAME_COL)).toUtf8().constData() , (item->text(SR_SIZE_COL)).toULongLong());
+
+            ui.searchResultWidget->takeItem(item) ;
+		}
+	}
 }
 
 void SearchDialog::collCreate()

retroshare-gui/src/gui/FileTransfer/SearchDialog.h

@@ -75,6 +75,7 @@ private slots:
     void searchSummaryWidgetCustomPopupMenu( QPoint point );
 
     void download();
+    void ban();
 
     void collCreate();
     void collModif();