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