src/dbmaintenancethread.cpp

   1 #include "../include/dbmaintenancethread.h"\r
   2 #include "../include/stringfunctions.h"\r
   3 #include "../include/option.h"\r
   4 \r
   5 #include <Poco/Timestamp.h>\r
   6 #include <Poco/Timespan.h>\r
   7 #include <Poco/DateTimeFormatter.h>\r
   8 #include <Poco/Thread.h>\r
   9 \r
  10 DBMaintenanceThread::DBMaintenanceThread()\r
  11 {\r
  12         // move last maintenance times back so they will all run soon\r
  13         m_last10minute=Poco::Timestamp();\r
  14         m_last30minute=Poco::Timestamp();\r
  15         m_last30minute-=Poco::Timespan(0,0,11,0,0);\r
  16         m_last1hour=Poco::Timestamp();\r
  17         m_last1hour-=Poco::Timespan(0,0,49,0,0);\r
  18         m_last6hour=Poco::Timestamp();\r
  19         m_last6hour-=Poco::Timespan(0,5,42,0,0);\r
  20         m_last1day=Poco::Timestamp();\r
  21         m_last1day-=Poco::Timespan(0,23,51,0,0);\r
  22 \r
  23         std::string tempval="180";\r
  24         Option::Instance()->Get("DeleteMessagesOlderThan",tempval);\r
  25         StringFunctions::Convert(tempval,m_deletemessagesolderthan);\r
  26 \r
  27 }\r
  28 \r
  29 \r
  30 void DBMaintenanceThread::Do10MinuteMaintenance()\r
  31 {\r
  32 \r
  33         m_log->debug("PeriodicDBMaintenance::Do10MinuteMaintenance");\r
  34 }\r
  35 \r
  36 void DBMaintenanceThread::Do30MinuteMaintenance()\r
  37 {\r
  38 \r
  39         m_log->debug("PeriodicDBMaintenance::Do30MinuteMaintenance");\r
  40 }\r
  41 \r
  42 void DBMaintenanceThread::Do1HourMaintenance()\r
  43 {\r
  44         // recalculate all trust levels - this is CPU instensive\r
  45         // do 1 identity at a time as doing it with 1 UPDATE statement locks that database for the duration\r
  46         SQLite3DB::Statement st=m_db->Prepare("SELECT TargetIdentityID,PeerMessageTrust,PeerTrustListTrust FROM vwCalculatedPeerTrust;");\r
  47         SQLite3DB::Statement upd=m_db->Prepare("UPDATE tblIdentity SET PeerMessageTrust=?, PeerTrustListTrust=? WHERE IdentityID=?");\r
  48         st.Step();\r
  49         while(st.RowReturned())\r
  50         {\r
  51                 int identityid=0;\r
  52                 int trust=0;\r
  53                 \r
  54                 st.ResultInt(0,identityid);\r
  55 \r
  56                 upd.Bind(0,identityid);\r
  57                 if(st.ResultNull(1)==false)\r
  58                 {\r
  59                         trust=0;\r
  60                         st.ResultInt(1,trust);\r
  61                         upd.Bind(0,trust);\r
  62                 }\r
  63                 else\r
  64                 {\r
  65                         upd.Bind(0);\r
  66                 }\r
  67                 if(st.ResultNull(2)==false)\r
  68                 {\r
  69                         trust=0;\r
  70                         st.ResultInt(2,trust);\r
  71                         upd.Bind(1,trust);\r
  72                 }\r
  73                 else\r
  74                 {\r
  75                         upd.Bind(1);\r
  76                 }\r
  77                 upd.Bind(2,identityid);\r
  78                 upd.Step();\r
  79                 upd.Reset();\r
  80 \r
  81                 st.Step();\r
  82         }\r
  83 \r
  84         // set null peer trust for identities without a calculated trust\r
  85         st=m_db->Prepare("SELECT IdentityID FROM tblIdentity WHERE IdentityID NOT IN (SELECT TargetIdentityID FROM vwCalculatedPeerTrust);");\r
  86         upd=m_db->Prepare("UPDATE tblIdentity SET PeerMessageTrust=NULL, PeerTrustListTrust=NULL WHERE IdentityID=?;");\r
  87         st.Step();\r
  88         while(st.RowReturned())\r
  89         {\r
  90                 int identityid=0;\r
  91                 st.ResultInt(0,identityid);\r
  92                 upd.Bind(0,identityid);\r
  93                 upd.Step();\r
  94                 upd.Reset();\r
  95                 st.Step();\r
  96         }\r
  97 \r
  98         m_log->debug("PeriodicDBMaintenance::Do1HourMaintenance");\r
  99 }\r
 100 \r
 101 void DBMaintenanceThread::Do6HourMaintenance()\r
 102 {\r
 103 \r
 104         // if we remove a board and the reply boardid is still set to it, we need to replace it with a boardid that does exist\r
 105         SQLite3DB::Statement st=m_db->Prepare("SELECT MessageID FROM tblMessage WHERE ReplyBoardID NOT IN (SELECT BoardID FROM tblBoard);");\r
 106         SQLite3DB::Statement st2=m_db->Prepare("SELECT BoardID FROM tblMessageBoard WHERE MessageID=?;");\r
 107         SQLite3DB::Statement upd=m_db->Prepare("UPDATE tblMessage SET ReplyBoardID=? WHERE MessageID=?;");\r
 108         st.Step();\r
 109         while(st.RowReturned())\r
 110         {\r
 111                 // find a valid boardid for the message\r
 112                 int messageid=0;\r
 113                 int boardid=0;\r
 114 \r
 115                 st.ResultInt(0,messageid);\r
 116 \r
 117                 st2.Bind(0,messageid);\r
 118                 st2.Step();\r
 119                 if(st2.RowReturned())\r
 120                 {\r
 121                         st2.ResultInt(0,boardid);\r
 122                         upd.Bind(0,boardid);\r
 123                         upd.Bind(1,messageid);\r
 124                         upd.Step();\r
 125                         upd.Reset();\r
 126                 }\r
 127                 st2.Reset();\r
 128                 \r
 129                 st.Step();\r
 130         }\r
 131 \r
 132         m_log->debug("PeriodicDBMaintenance::Do6HourMaintenance");\r
 133 }\r
 134 \r
 135 void DBMaintenanceThread::Do1DayMaintenance()\r
 136 {\r
 137         Poco::DateTime date;\r
 138 \r
 139         // delete all puzzles 2 or more days old\r
 140         date=Poco::Timestamp();\r
 141         date-=Poco::Timespan(2,0,0,0,0);\r
 142         m_db->Execute("DELETE FROM tblIntroductionPuzzleInserts WHERE Day<='"+Poco::DateTimeFormatter::format(date,"%Y-%m-%d")+"';");\r
 143         m_db->Execute("DELETE FROM tblIntroductionPuzzleRequests WHERE Day<='"+Poco::DateTimeFormatter::format(date,"%Y-%m-%d")+"';");\r
 144 \r
 145         // delete all identities we've never seen and were added more than 20 days ago\r
 146         date=Poco::Timestamp();\r
 147         date-=Poco::Timespan(20,0,0,0,0);\r
 148         m_db->Execute("DELETE FROM tblIdentity WHERE LastSeen IS NULL AND DateAdded<'"+Poco::DateTimeFormatter::format(date,"%Y-%m-%d")+"';");\r
 149 \r
 150         // delete old identity requests - we don't need them anymore\r
 151         date=Poco::Timestamp();\r
 152         date-=Poco::Timespan(2,0,0,0,0);\r
 153         m_db->Execute("DELETE FROM tblIdentityRequests WHERE Day<'"+Poco::DateTimeFormatter::format(date,"%Y-%m-%d")+"';");\r
 154 \r
 155         // delete old board list inserts/requests - we don't need them anymore\r
 156         date=Poco::Timestamp();\r
 157         date-=Poco::Timespan(2,0,0,0,0);\r
 158         m_db->Execute("DELETE FROM tblBoardListInserts WHERE Day<'"+Poco::DateTimeFormatter::format(date,"%Y-%m-%d")+"';");\r
 159         m_db->Execute("DELETE FROM tblBoardListRequests WHERE Day<'"+Poco::DateTimeFormatter::format(date,"%Y-%m-%d")+"';");\r
 160 \r
 161         // delete old local identity inserts - we don't need them anymore\r
 162         date=Poco::Timestamp();\r
 163         date-=Poco::Timespan(2,0,0,0,0);\r
 164         m_db->Execute("DELETE FROM tblLocalIdentityInserts WHERE Day<'"+Poco::DateTimeFormatter::format(date,"%Y-%m-%d")+"';");\r
 165 \r
 166         // delete old message list inserts/requests - we don't need them anymore\r
 167         date=Poco::Timestamp();\r
 168         date-=Poco::Timespan(2,0,0,0,0);\r
 169         m_db->Execute("DELETE FROM tblMessageListInserts WHERE Day<'"+Poco::DateTimeFormatter::format(date,"%Y-%m-%d")+"';");\r
 170         m_db->Execute("DELETE FROM tblMessageListRequests WHERE Day<'"+Poco::DateTimeFormatter::format(date,"%Y-%m-%d")+"';");\r
 171 \r
 172         // delete old trust list inserts/requests - we don't need them anymore\r
 173         date=Poco::Timestamp();\r
 174         date-=Poco::Timespan(2,0,0,0,0);\r
 175         m_db->Execute("DELETE FROM tblTrustListInserts WHERE Day<'"+Poco::DateTimeFormatter::format(date,"%Y-%m-%d")+"';");\r
 176         m_db->Execute("DELETE FROM tblTrustListRequests WHERE Day<'"+Poco::DateTimeFormatter::format(date,"%Y-%m-%d")+"';");\r
 177 \r
 178         // delete trust lists from identities we aren't trusting anymore\r
 179         m_db->Execute("DELETE FROM tblPeerTrust WHERE IdentityID NOT IN (SELECT IdentityID FROM tblIdentity WHERE (LocalTrustListTrust>=(SELECT OptionValue FROM tblOption WHERE Option='MinLocalTrustListTrust')) AND (PeerTrustListTrust IS NULL OR PeerTrustListTrust>=(SELECT OptionValue FROM tblOption WHERE Option='MinPeerTrustListTrust')));");\r
 180 \r
 181         // remove identityid from messages where the identity has been deleted\r
 182         m_db->Execute("UPDATE tblMessage SET IdentityID=NULL WHERE IdentityID NOT IN (SELECT IdentityID FROM tblIdentity);");\r
 183 \r
 184         // try to re-attach messages from identities that were previously deleted, but have been since re-added\r
 185         // first get the names from messages that have a NULL IdentityID\r
 186         SQLite3DB::Statement st=m_db->Prepare("SELECT FromName FROM tblMessage WHERE IdentityID IS NULL GROUP BY FromName;");\r
 187         st.Step();\r
 188         while(st.RowReturned())\r
 189         {\r
 190                 std::string name="";\r
 191                 std::string namepart="";\r
 192                 std::string publickey="";\r
 193                 int identityid=0;\r
 194                 st.ResultText(0,name);\r
 195 \r
 196                 std::vector<std::string> parts;\r
 197                 StringFunctions::Split(name,"@",parts);\r
 198 \r
 199                 // name can have a @ in it - so reattach all parts except the last which is the key\r
 200                 for(long i=0; i<parts.size()-1; i++)\r
 201                 {\r
 202                         if(i!=0)\r
 203                         {\r
 204                                 namepart+="@";\r
 205                         }\r
 206                         namepart+=parts[i];\r
 207                 }\r
 208 \r
 209                 // find identities with this name\r
 210                 SQLite3DB::Statement st2=m_db->Prepare("SELECT IdentityID,PublicKey FROM tblIdentity WHERE Name=?;");\r
 211                 st2.Bind(0,namepart);\r
 212                 st2.Step();\r
 213                 while(st2.RowReturned())\r
 214                 {\r
 215                         publickey="";\r
 216                         identityid=0;\r
 217                         st2.ResultText(1,publickey);\r
 218                         // check if public key matches 2nd part\r
 219                         if(parts.size()>1 && publickey.find(parts[1])==4)\r
 220                         {\r
 221                                 // we have the identity - so update the messages table with the identityid\r
 222                                 st2.ResultInt(0,identityid);\r
 223 \r
 224                                 SQLite3DB::Statement st3=m_db->Prepare("UPDATE tblMessage SET IdentityID=? WHERE FromName=? AND IdentityID IS NULL;");\r
 225                                 st3.Bind(0,identityid);\r
 226                                 st3.Bind(1,name);\r
 227                                 st3.Step();\r
 228                         }\r
 229                         st2.Step();\r
 230                 }\r
 231 \r
 232                 st.Step();\r
 233         }\r
 234 \r
 235         // delete single use identities that are older than 7 days\r
 236         date=Poco::Timestamp();\r
 237         date-=Poco::Timespan(7,0,0,0,0);\r
 238         st=m_db->Prepare("DELETE FROM tblIdentity WHERE SingleUse='true' AND DateAdded<?;");\r
 239         st.Bind(0,Poco::DateTimeFormatter::format(date,"%Y-%m-%d %H:%M:%S"));\r
 240         st.Step();\r
 241 \r
 242         // delete local single use identities that are older than 7 days\r
 243         date=Poco::Timestamp();\r
 244         date-=Poco::Timespan(7,0,0,0,0);\r
 245         st=m_db->Prepare("DELETE FROM tblLocalIdentity WHERE SingleUse='true' AND DateCreated<?;");\r
 246         st.Bind(0,Poco::DateTimeFormatter::format(date,"%Y-%m-%d %H:%M:%S"));\r
 247         st.Step();\r
 248 \r
 249         // delete old messages\r
 250         date=Poco::Timestamp();\r
 251         date-=Poco::Timespan(m_deletemessagesolderthan,0,0,0,0);\r
 252         st=m_db->Prepare("DELETE FROM tblMessage WHERE MessageDate<?;");\r
 253         st.Bind(0,Poco::DateTimeFormatter::format(date,"%Y-%m-%d"));\r
 254         st.Step();\r
 255 \r
 256         // delete tblIdentityTrust for local identities and identities that have been deleted\r
 257         m_db->Execute("DELETE FROM tblIdentityTrust WHERE LocalIdentityID NOT IN (SELECT LocalIdentityID FROM tblLocalIdentity);");\r
 258         m_db->Execute("DELETE FROM tblIdentityTrust WHERE IdentityID NOT IN (SELECT IdentityID FROM tblIdentity);");\r
 259 \r
 260         m_log->debug("PeriodicDBMaintenance::Do1DayMaintenance");\r
 261 \r
 262 }\r
 263 \r
 264 void DBMaintenanceThread::run()\r
 265 {\r
 266         m_log->debug("DBMaintenanceThread::run thread started.");\r
 267 \r
 268         Poco::DateTime now;\r
 269 \r
 270         do\r
 271         {\r
 272                 now=Poco::Timestamp();\r
 273 \r
 274                 if((m_last10minute+Poco::Timespan(0,0,10,0,0))<=now)\r
 275                 {\r
 276                         Do10MinuteMaintenance();\r
 277                         m_last10minute=Poco::Timestamp();\r
 278                 }\r
 279                 if((m_last30minute+Poco::Timespan(0,0,30,0,0))<=now)\r
 280                 {\r
 281                         Do30MinuteMaintenance();\r
 282                         m_last30minute=Poco::Timestamp();\r
 283                 }\r
 284                 if((m_last1hour+Poco::Timespan(0,1,0,0,0))<=now)\r
 285                 {\r
 286                         Do1HourMaintenance();\r
 287                         m_last1hour=Poco::Timestamp();\r
 288                 }\r
 289                 if((m_last6hour+Poco::Timespan(0,6,0,0,0))<=now)\r
 290                 {\r
 291                         Do6HourMaintenance();\r
 292                         m_last6hour=Poco::Timestamp();\r
 293                 }\r
 294                 if((m_last1day+Poco::Timespan(1,0,0,0,0))<=now)\r
 295                 {\r
 296                         Do1DayMaintenance();\r
 297                         m_last1day=Poco::Timestamp();\r
 298                 }\r
 299 \r
 300                 Poco::Thread::sleep(1000);\r
 301         }while(!IsCancelled());\r
 302 \r
 303         m_log->debug("DBMaintenanceThread::run thread exiting.");\r
 304 }\r