src/freenet/trustlistrequester.cpp

   1 #include "../../include/freenet/trustlistrequester.h"\r
   2 #include "../../include/option.h"\r
   3 #include "../../include/stringfunctions.h"\r
   4 #include "../../include/freenet/trustlistxml.h"\r
   5 \r
   6 #include <Poco/DateTimeFormatter.h>\r
   7 #include <Poco/Timespan.h>\r
   8 \r
   9 #ifdef XMEM\r
  10         #include <xmem.h>\r
  11 #endif\r
  12 \r
  13 TrustListRequester::TrustListRequester()\r
  14 {\r
  15         Initialize();\r
  16 }\r
  17 \r
  18 TrustListRequester::TrustListRequester(FCPv2::Connection *fcp):IIndexRequester<long>(fcp)\r
  19 {\r
  20         Initialize();\r
  21 }\r
  22 \r
  23 const bool TrustListRequester::HandleAllData(FCPv2::Message &message)\r
  24 {\r
  25         Poco::DateTime now;\r
  26         SQLite3DB::Statement st;\r
  27         SQLite3DB::Statement trustst;\r
  28         std::vector<std::string> idparts;\r
  29         long datalength;\r
  30         std::vector<char> data;\r
  31         TrustListXML xml;\r
  32         long identityid;\r
  33         long index;\r
  34         int insertcount=0;\r
  35         int dayinsertcount=0;\r
  36         int previnsertcount=0;\r
  37 \r
  38         StringFunctions::Split(message["Identifier"],"|",idparts);\r
  39         StringFunctions::Convert(message["DataLength"],datalength);\r
  40         StringFunctions::Convert(idparts[1],identityid);\r
  41         StringFunctions::Convert(idparts[2],index);\r
  42 \r
  43         // wait for all data to be received from connection\r
  44         m_fcp->WaitForBytes(1000,datalength);\r
  45 \r
  46         // if we got disconnected- return immediately\r
  47         if(m_fcp->IsConnected()==false)\r
  48         {\r
  49                 return false;\r
  50         }\r
  51 \r
  52         // receive the file\r
  53         m_fcp->Receive(data,datalength);\r
  54 \r
  55         // get count of identities added in last 24 hours\r
  56         st=m_db->Prepare("SELECT COUNT(*) FROM tblIdentity WHERE DateAdded>=?;");\r
  57         now-=Poco::Timespan(1,0,0,0,0);\r
  58         st.Bind(0,Poco::DateTimeFormatter::format(now,"%Y-%m-%d %H:%M:%S"));\r
  59         st.Step();\r
  60         if(st.RowReturned())\r
  61         {\r
  62                 if(st.ResultNull(0)==false)\r
  63                 {\r
  64                         st.ResultInt(0,dayinsertcount);\r
  65                 }\r
  66         }\r
  67         else\r
  68         {\r
  69                 m_log->error("TrustListRequester::HandleAllData couldn't get count of identities added in last 24 hours");\r
  70         }\r
  71 \r
  72         // get count of identities added more than 24 hours ago - if 0 then we will accept more than 100 identities now\r
  73         st=m_db->Prepare("SELECT COUNT(*) FROM tblIdentity WHERE DateAdded<?;");\r
  74         st.Bind(0,Poco::DateTimeFormatter::format(now,"%Y-%m-%d %H:%M:%S"));\r
  75         st.Step();\r
  76         if(st.RowReturned())\r
  77         {\r
  78                 if(st.ResultNull(0)==false)\r
  79                 {\r
  80                         st.ResultInt(0,previnsertcount);\r
  81                 }\r
  82         }\r
  83         else\r
  84         {\r
  85                 m_log->error("TrustListRequester::HandleAllData couldn't get count of identities added more than 24 hours ago");\r
  86         }\r
  87 \r
  88         now=Poco::DateTime();\r
  89 \r
  90         // parse file into xml and update the database\r
  91         if(data.size()>0 && xml.ParseXML(std::string(data.begin(),data.end()))==true)\r
  92         {\r
  93                 // find the identity name and public key of the identity publishing the trust list\r
  94                 std::string publisherid="";\r
  95                 st=m_db->Prepare("SELECT Name,PublicKey FROM tblIdentity WHERE IdentityID=?;");\r
  96                 st.Bind(0,identityid);\r
  97                 st.Step();\r
  98                 if(st.RowReturned())\r
  99                 {\r
 100                         std::string publishername="";\r
 101                         std::string publisherpublickey="";\r
 102                         st.ResultText(0,publishername);\r
 103                         st.ResultText(1,publisherpublickey);\r
 104                         publisherid=publishername;\r
 105                         if(publisherpublickey.size()>4)\r
 106                         {\r
 107                                 publisherid+=publisherpublickey.substr(3,44);\r
 108                         }\r
 109                 }\r
 110                 st.Finalize();\r
 111 \r
 112                 // drop all existing peer trust from this identity - we will rebuild it when we go through each trust in the xml file\r
 113                 st=m_db->Prepare("DELETE FROM tblPeerTrust WHERE IdentityID=?;");\r
 114                 st.Bind(0,identityid);\r
 115                 st.Step();\r
 116                 st.Finalize();\r
 117 \r
 118                 st=m_db->Prepare("SELECT IdentityID FROM tblIdentity WHERE PublicKey=?;");\r
 119                 trustst=m_db->Prepare("INSERT INTO tblPeerTrust(IdentityID,TargetIdentityID,MessageTrust,TrustListTrust,MessageTrustComment,TrustListTrustComment) VALUES(?,?,?,?,?,?);");\r
 120                 \r
 121                 SQLite3DB::Statement idinsert=m_db->Prepare("INSERT INTO tblIdentity(PublicKey,DateAdded,AddedMethod) VALUES(?,?,?);");\r
 122                 \r
 123                 // loop through all trust entries in xml and add to database if we don't already know them\r
 124                 for(long i=0; i<xml.TrustCount(); i++)\r
 125                 {\r
 126                         int id=-1;\r
 127                         std::string identity;\r
 128                         std::string messagetrustcomment="";\r
 129                         std::string trustlisttrustcomment="";\r
 130                         identity=xml.GetIdentity(i);\r
 131 \r
 132                         st.Bind(0,identity);\r
 133                         st.Step();\r
 134                         if(st.RowReturned()==false)\r
 135                         {\r
 136                                 if(insertcount<50 && (dayinsertcount<100 || previnsertcount==0))\r
 137                                 {\r
 138                                         idinsert.Bind(0,identity);\r
 139                                         idinsert.Bind(1,Poco::DateTimeFormatter::format(now,"%Y-%m-%d %H:%M:%S"));\r
 140                                         idinsert.Bind(2,"trust list of "+publisherid);\r
 141                                         idinsert.Step(true);\r
 142                                         id=idinsert.GetLastInsertRowID();\r
 143                                         idinsert.Reset();\r
 144                                 }\r
 145                                 insertcount++;\r
 146                                 dayinsertcount++;\r
 147                         }\r
 148                         else\r
 149                         {\r
 150                                 st.ResultInt(0,id);\r
 151                         }\r
 152                         st.Reset();\r
 153 \r
 154                         //insert trust for this identity\r
 155                         if(id!=-1)\r
 156                         {\r
 157                                 trustst.Bind(0,identityid);\r
 158                                 trustst.Bind(1,id);\r
 159                                 if(xml.GetMessageTrust(i)==-1)\r
 160                                 {\r
 161                                         trustst.Bind(2);\r
 162                                 }\r
 163                                 else\r
 164                                 {\r
 165                                         trustst.Bind(2,xml.GetMessageTrust(i));\r
 166                                 }\r
 167                                 if(xml.GetTrustListTrust(i)==-1)\r
 168                                 {\r
 169                                         trustst.Bind(3);\r
 170                                 }\r
 171                                 else\r
 172                                 {\r
 173                                         trustst.Bind(3,xml.GetTrustListTrust(i));\r
 174                                 }\r
 175                                 messagetrustcomment=xml.GetMessageTrustComment(i);\r
 176                                 trustlisttrustcomment=xml.GetTrustListTrustComment(i);\r
 177                                 // limit comments to 50 characters each\r
 178                                 if(messagetrustcomment.size()>50)\r
 179                                 {\r
 180                                         messagetrustcomment.erase(50);\r
 181                                 }\r
 182                                 if(trustlisttrustcomment.size()>50)\r
 183                                 {\r
 184                                         trustlisttrustcomment.erase(50);\r
 185                                 }\r
 186                                 trustst.Bind(4,messagetrustcomment);\r
 187                                 trustst.Bind(5,trustlisttrustcomment);\r
 188                                 trustst.Step();\r
 189                                 trustst.Reset();\r
 190                         }\r
 191                 }\r
 192 \r
 193                 trustst.Finalize();\r
 194                 st.Finalize();\r
 195 \r
 196                 if(insertcount>=50)\r
 197                 {\r
 198                         m_log->warning("TrustListRequester::HandleAllData TrustList contained more than 50 new identities : "+message["Identifier"]);\r
 199                 }\r
 200                 if(dayinsertcount>=100 && previnsertcount>0)\r
 201                 {\r
 202                         m_log->warning("TrustListRequester::HandleAllData TrustList would have inserted more than 100 new identities in the last 24 hours : "+message["Identifier"]);\r
 203                 }\r
 204 \r
 205                 st=m_db->Prepare("INSERT INTO tblTrustListRequests(IdentityID,Day,RequestIndex,Found) VALUES(?,?,?,'true');");\r
 206                 st.Bind(0,identityid);\r
 207                 st.Bind(1,idparts[4]);\r
 208                 st.Bind(2,index);\r
 209                 st.Step();\r
 210                 st.Finalize();\r
 211 \r
 212                 m_log->debug("TrustListRequester::HandleAllData parsed TrustList XML file : "+message["Identifier"]);\r
 213         }\r
 214         else\r
 215         {\r
 216                 // bad data - mark index\r
 217                 st=m_db->Prepare("INSERT INTO tblTrustListRequests(IdentityID,Day,RequestIndex,Found) VALUES(?,?,?,'false');");\r
 218                 st.Bind(0,identityid);\r
 219                 st.Bind(1,idparts[4]);\r
 220                 st.Bind(2,index);\r
 221                 st.Step();\r
 222                 st.Finalize();\r
 223 \r
 224                 m_log->error("TrustListRequester::HandleAllData error parsing TrustList XML file : "+message["Identifier"]);\r
 225         }\r
 226 \r
 227         // remove this identityid from request list\r
 228         RemoveFromRequestList(identityid);\r
 229 \r
 230         return true;\r
 231 \r
 232 }\r
 233 \r
 234 const bool TrustListRequester::HandleGetFailed(FCPv2::Message &message)\r
 235 {\r
 236         SQLite3DB::Statement st;\r
 237         std::vector<std::string> idparts;\r
 238         long identityid;\r
 239         long index;\r
 240 \r
 241         StringFunctions::Split(message["Identifier"],"|",idparts);\r
 242         StringFunctions::Convert(idparts[1],identityid);\r
 243         StringFunctions::Convert(idparts[2],index);     \r
 244 \r
 245         // if this is a fatal error - insert index into database so we won't try to download this index again\r
 246         if(message["Fatal"]=="true")\r
 247         {\r
 248                 st=m_db->Prepare("INSERT INTO tblTrustListRequests(IdentityID,Day,RequestIndex,Found) VALUES(?,?,?,'false');");\r
 249                 st.Bind(0,identityid);\r
 250                 st.Bind(1,idparts[4]);\r
 251                 st.Bind(2,index);\r
 252                 st.Step();\r
 253                 st.Finalize();\r
 254 \r
 255                 m_log->error("TrustListRequester::HandleGetFailed fatal error requesting "+message["Identifier"]);\r
 256         }\r
 257 \r
 258         // remove this identityid from request list\r
 259         RemoveFromRequestList(identityid);\r
 260 \r
 261         return true;\r
 262 \r
 263 }\r
 264 \r
 265 void TrustListRequester::Initialize()\r
 266 {\r
 267         std::string tempval="";\r
 268         m_fcpuniquename="TrustListRequester";\r
 269 \r
 270         m_maxrequests=0;\r
 271         Option::Instance()->GetInt("MaxIdentityRequests",m_maxrequests);\r
 272         if(m_maxrequests<1)\r
 273         {\r
 274                 m_maxrequests=1;\r
 275                 m_log->error("Option MaxTrustListRequests is currently set at "+tempval+".  It must be 1 or greater.");\r
 276         }\r
 277         if(m_maxrequests>100)\r
 278         {\r
 279                 m_log->warning("Option MaxTrustListRequests is currently set at "+tempval+".  This value might be incorrectly configured.");\r
 280         }\r
 281         m_tempdate=Poco::Timestamp();\r
 282 }\r
 283 \r
 284 void TrustListRequester::PopulateIDList()\r
 285 {\r
 286         Poco::DateTime date;\r
 287         int id;\r
 288         std::string sql;\r
 289 \r
 290         // select identities we want to query (we've seen them today and they are publishing trust list) - sort by their trust level (descending) with secondary sort on how long ago we saw them (ascending)\r
 291         sql="SELECT IdentityID FROM tblIdentity ";\r
 292         sql+="WHERE Name IS NOT NULL AND Name <> '' AND PublicKey IS NOT NULL AND PublicKey <> '' AND LastSeen>='"+Poco::DateTimeFormatter::format(date,"%Y-%m-%d")+"' AND PublishTrustList='true' AND LocalTrustListTrust>=(SELECT OptionValue FROM tblOption WHERE Option='MinLocalTrustListTrust') AND ( PeerTrustListTrust IS NULL OR PeerTrustListTrust>=(SELECT OptionValue FROM tblOption WHERE Option='MinPeerTrustListTrust') )";\r
 293         sql+="ORDER BY LocalTrustListTrust DESC, LastSeen;";\r
 294 \r
 295         SQLite3DB::Statement st=m_db->Prepare(sql);\r
 296         st.Step();\r
 297 \r
 298         m_ids.clear();\r
 299 \r
 300         while(st.RowReturned())\r
 301         {\r
 302                 st.ResultInt(0,id);\r
 303                 m_ids[id]=false;\r
 304                 st.Step();\r
 305         }\r
 306 }\r
 307 \r
 308 void TrustListRequester::StartRequest(const long &identityid)\r
 309 {\r
 310         Poco::DateTime now;\r
 311         FCPv2::Message message;\r
 312         std::string publickey;\r
 313         int index;\r
 314         std::string indexstr;\r
 315         std::string identityidstr;\r
 316 \r
 317         SQLite3DB::Statement st=m_db->Prepare("SELECT PublicKey FROM tblIdentity WHERE IdentityID=?;");\r
 318         st.Bind(0,identityid);\r
 319         st.Step();\r
 320 \r
 321         if(st.RowReturned())\r
 322         {\r
 323                 st.ResultText(0,publickey);\r
 324 \r
 325                 SQLite3DB::Statement st2=m_db->Prepare("SELECT MAX(RequestIndex) FROM tblTrustListRequests WHERE Day=? AND IdentityID=?;");\r
 326                 st2.Bind(0,Poco::DateTimeFormatter::format(now,"%Y-%m-%d"));\r
 327                 st2.Bind(1,identityid);\r
 328                 st2.Step();\r
 329 \r
 330                 index=0;\r
 331                 if(st2.RowReturned())\r
 332                 {\r
 333                         if(st2.ResultNull(0)==false)\r
 334                         {\r
 335                                 st2.ResultInt(0,index);\r
 336                                 index++;\r
 337                         }\r
 338                 }\r
 339                 st2.Finalize();\r
 340 \r
 341                 StringFunctions::Convert(index,indexstr);\r
 342                 StringFunctions::Convert(identityid,identityidstr);\r
 343 \r
 344                 message.SetName("ClientGet");\r
 345                 message["URI"]=publickey+m_messagebase+"|"+Poco::DateTimeFormatter::format(now,"%Y-%m-%d")+"|TrustList|"+indexstr+".xml";\r
 346                 message["Identifier"]=m_fcpuniquename+"|"+identityidstr+"|"+indexstr+"|"+message["URI"];\r
 347                 message["ReturnType"]="direct";\r
 348                 message["MaxSize"]="1000000";                   // 1 MB\r
 349 \r
 350                 m_fcp->Send(message);\r
 351 \r
 352                 m_requesting.push_back(identityid);\r
 353         }\r
 354         st.Finalize();\r
 355 \r
 356         m_ids[identityid]=true;\r
 357 \r
 358 }\r