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