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