src/freenet/identityintroductionrequester.cpp

   1 #include "../../include/freenet/identityintroductionrequester.h"\r
   2 #include "../../include/freenet/identityintroductionxml.h"\r
   3 #include "../../include/freenet/freenetssk.h"\r
   4 #include "../../include/option.h"\r
   5 #include "../../include/stringfunctions.h"\r
   6 #include "../../include/xyssl/sha1.h"\r
   7 #include "../../include/hex.h"\r
   8 \r
   9 #ifdef XMEM\r
  10         #include <xmem.h>\r
  11 #endif\r
  12 \r
  13 IdentityIntroductionRequester::IdentityIntroductionRequester()\r
  14 {\r
  15         Initialize();\r
  16 }\r
  17 \r
  18 IdentityIntroductionRequester::IdentityIntroductionRequester(FCPv2 *fcp):IFCPConnected(fcp)\r
  19 {\r
  20         Initialize();\r
  21 }\r
  22 \r
  23 void IdentityIntroductionRequester::FCPConnected()\r
  24 {\r
  25         m_requesting.clear();\r
  26         PopulateIDList();\r
  27 }\r
  28 \r
  29 void IdentityIntroductionRequester::FCPDisconnected()\r
  30 {\r
  31         \r
  32 }\r
  33 \r
  34 const bool IdentityIntroductionRequester::HandleAllData(FCPMessage &message)\r
  35 {\r
  36         FreenetSSK ssk;\r
  37         DateTime date;\r
  38         std::vector<std::string> idparts;\r
  39         std::vector<char> data;\r
  40         long datalength;\r
  41         IdentityIntroductionXML xml;\r
  42 \r
  43         StringFunctions::Split(message["Identifier"],"|",idparts);\r
  44         StringFunctions::Convert(message["DataLength"],datalength);\r
  45 \r
  46         // wait for all data to be received from connection\r
  47         while(m_fcp->Connected() && m_fcp->ReceiveBufferSize()<datalength)\r
  48         {\r
  49                 m_fcp->Update(1);\r
  50         }\r
  51 \r
  52         // if we got disconnected- return immediately\r
  53         if(m_fcp->Connected()==false)\r
  54         {\r
  55                 return false;\r
  56         }\r
  57 \r
  58         // receive the file\r
  59         data.resize(datalength);\r
  60         m_fcp->ReceiveRaw(&data[0],datalength);\r
  61 \r
  62         // parse file into xml and update the database\r
  63         if(xml.ParseXML(std::string(data.begin(),data.end()))==true)\r
  64         {\r
  65 \r
  66                 ssk.SetPublicKey(xml.GetIdentity());\r
  67 \r
  68                 // mark puzzle found\r
  69                 SQLite3DB::Statement st=m_db->Prepare("UPDATE tblIntroductionPuzzleInserts SET FoundSolution='true' WHERE UUID=?;");\r
  70                 st.Bind(0,idparts[3]);\r
  71                 st.Step();\r
  72                 st.Finalize();\r
  73 \r
  74                 if(ssk.ValidPublicKey()==true)\r
  75                 {\r
  76                         // try to find existing identity with this SSK\r
  77                         st=m_db->Prepare("SELECT IdentityID FROM tblIdentity WHERE PublicKey=?;");\r
  78                         st.Bind(0,xml.GetIdentity());\r
  79                         st.Step();\r
  80                         if(st.RowReturned()==false)\r
  81                         {\r
  82                                 // we don't already know about this id - add it\r
  83                                 st.Finalize();\r
  84                                 date.SetToGMTime();\r
  85                                 st=m_db->Prepare("INSERT INTO tblIdentity(PublicKey,DateAdded) VALUES(?,?);");\r
  86                                 st.Bind(0,xml.GetIdentity());\r
  87                                 st.Bind(1,date.Format("%Y-%m-%d %H:%M:%S"));\r
  88                                 st.Step();\r
  89                         }\r
  90                         st.Finalize();\r
  91                 }\r
  92                 else\r
  93                 {\r
  94                         m_log->WriteLog(LogFile::LOGLEVEL_ERROR,"IdentityIntroductionRequester::HandleAllData parsed public SSK key was not valid.");\r
  95                 }\r
  96 \r
  97                 m_log->WriteLog(LogFile::LOGLEVEL_DEBUG,"IdentityIntroductionRequester::HandleAllData parsed IdentityIntroduction XML file : "+message["Identifier"]);\r
  98         }\r
  99         else\r
 100         {\r
 101 \r
 102                 SQLite3DB::Statement st=m_db->Prepare("UPDATE tblIntroductionPuzzleInserts SET FoundSolution='true' WHERE UUID=?;");\r
 103                 st.Bind(0,idparts[3]);\r
 104                 st.Step();\r
 105                 st.Finalize();          \r
 106 \r
 107                 m_log->WriteLog(LogFile::LOGLEVEL_ERROR,"IdentityIntroductionRequester::HandleAllData error parsing IdentityIntroduction XML file : "+message["Identifier"]);\r
 108         }\r
 109 \r
 110         // remove UUID from request list\r
 111         RemoveFromRequestList(idparts[3]);\r
 112 \r
 113         return true;\r
 114 }\r
 115 \r
 116 const bool IdentityIntroductionRequester::HandleGetFailed(FCPMessage &message)\r
 117 {\r
 118         std::vector<std::string> idparts;\r
 119 \r
 120         StringFunctions::Split(message["Identifier"],"|",idparts);\r
 121 \r
 122         // fatal error - don't try to download again\r
 123         if(message["Fatal"]=="true")\r
 124         {\r
 125                 SQLite3DB::Statement st=m_db->Prepare("UPDATE tblIntroductionPuzzleInserts SET FoundSolution='true' WHERE UUID=?;");\r
 126                 st.Bind(0,idparts[3]);\r
 127                 st.Step();\r
 128                 st.Finalize();\r
 129 \r
 130                 m_log->WriteLog(LogFile::LOGLEVEL_DEBUG,"IdentityIntroductionRequester::HandleAllData Fatal GetFailed for "+message["Identifier"]);\r
 131         }\r
 132 \r
 133         // remove UUID from request list\r
 134         RemoveFromRequestList(idparts[3]);\r
 135 \r
 136         return true;\r
 137 }\r
 138 \r
 139 const bool IdentityIntroductionRequester::HandleMessage(FCPMessage &message)\r
 140 {\r
 141 \r
 142         if(message["Identifier"].find("IdentityIntroductionRequester")==0)\r
 143         {\r
 144                 \r
 145                 // ignore DataFound\r
 146                 if(message.GetName()=="DataFound")\r
 147                 {\r
 148                         return true;\r
 149                 }\r
 150 \r
 151                 if(message.GetName()=="AllData")\r
 152                 {\r
 153                         return HandleAllData(message);\r
 154                 }\r
 155 \r
 156                 if(message.GetName()=="GetFailed")\r
 157                 {\r
 158                         return HandleGetFailed(message);\r
 159                 }\r
 160 \r
 161                 if(message.GetName()=="IdentifierCollision")\r
 162                 {\r
 163                         // remove one of the ids from the requesting list\r
 164                         std::vector<std::string> idparts;\r
 165                         StringFunctions::Split(message["Identifier"],"|",idparts);\r
 166                         RemoveFromRequestList(idparts[3]);\r
 167                         return true;\r
 168                 }\r
 169 \r
 170         }\r
 171 \r
 172         return false;\r
 173 }\r
 174 \r
 175 void IdentityIntroductionRequester::Initialize()\r
 176 {\r
 177         std::string tempval="";\r
 178         Option::instance()->Get("MaxIdentityIntroductionRequests",tempval);\r
 179         StringFunctions::Convert(tempval,m_maxrequests);\r
 180         if(m_maxrequests<1)\r
 181         {\r
 182                 m_maxrequests=1;\r
 183                 m_log->WriteLog(LogFile::LOGLEVEL_ERROR,"Option MaxIdentityIntroductionRequests is currently set at "+tempval+".  It must be 1 or greater.");\r
 184         }\r
 185         if(m_maxrequests>100)\r
 186         {\r
 187                 m_log->WriteLog(LogFile::LOGLEVEL_WARNING,"Option MaxIdentityIntroductionRequests is currently set at "+tempval+".  This value might be incorrectly configured.");\r
 188         }\r
 189         Option::instance()->Get("MessageBase",m_messagebase);\r
 190         m_tempdate.SetToGMTime();\r
 191 }\r
 192 \r
 193 void IdentityIntroductionRequester::PopulateIDList()\r
 194 {\r
 195         DateTime date;\r
 196         int id;\r
 197 \r
 198         date.SetToGMTime();\r
 199         date.Add(0,0,0,-1);\r
 200 \r
 201         // get all identities that have unsolved puzzles from yesterday or today\r
 202         SQLite3DB::Statement st=m_db->Prepare("SELECT LocalIdentityID FROM tblIntroductionPuzzleInserts WHERE Day>='"+date.Format("%Y-%m-%d")+"' AND FoundSolution='false' GROUP BY LocalIdentityID;");\r
 203         st.Step();\r
 204 \r
 205         m_ids.clear();\r
 206 \r
 207         while(st.RowReturned())\r
 208         {\r
 209                 st.ResultInt(0,id);\r
 210                 m_ids[id]=false;\r
 211                 st.Step();\r
 212         }\r
 213 \r
 214 }\r
 215 \r
 216 void IdentityIntroductionRequester::Process()\r
 217 {\r
 218         // max is the smaller of the config value or the total number of identities we will request from\r
 219         long max=m_maxrequests>m_ids.size() ? m_ids.size() : m_maxrequests;\r
 220 \r
 221                 // try to keep up to max requests going\r
 222         if(m_requesting.size()<max)\r
 223         {\r
 224                 std::map<long,bool>::iterator i=m_ids.begin();\r
 225                 while(i!=m_ids.end() && (*i).second==true)\r
 226                 {\r
 227                         i++;\r
 228                 }\r
 229 \r
 230                 if(i!=m_ids.end())\r
 231                 {\r
 232                         StartRequests((*i).first);\r
 233                 }\r
 234                 else\r
 235                 {\r
 236                         // we requested from all ids in the list, repopulate the list\r
 237                         PopulateIDList();\r
 238                 }\r
 239         }\r
 240         // special case - if there were 0 identities on the list when we started then we will never get a chance to repopulate the list\r
 241         // this will recheck for ids every minute\r
 242         DateTime now;\r
 243         now.SetToGMTime();\r
 244         if(m_tempdate<(now-(1.0/1440.0)))\r
 245         {\r
 246                 PopulateIDList();\r
 247                 m_tempdate=now;\r
 248         }\r
 249 }\r
 250 \r
 251 void IdentityIntroductionRequester::RegisterWithThread(FreenetMasterThread *thread)\r
 252 {\r
 253         thread->RegisterFCPConnected(this);\r
 254         thread->RegisterFCPMessageHandler(this);\r
 255         thread->RegisterPeriodicProcessor(this);\r
 256 }\r
 257 \r
 258 void IdentityIntroductionRequester::RemoveFromRequestList(const std::string &UUID)\r
 259 {\r
 260         std::vector<std::string>::iterator i=m_requesting.begin();\r
 261         while(i!=m_requesting.end() && (*i)!=UUID)\r
 262         {\r
 263                 i++;\r
 264         }\r
 265         if(i!=m_requesting.end())\r
 266         {\r
 267                 m_requesting.erase(i);\r
 268         }\r
 269 }\r
 270 \r
 271 void IdentityIntroductionRequester::StartRequest(const std::string &UUID)\r
 272 {\r
 273         std::string day;\r
 274         std::string solution;\r
 275         std::vector<unsigned char> solutionhash;\r
 276         std::string encodedhash;\r
 277         FCPMessage message;\r
 278         SQLite3DB::Statement st=m_db->Prepare("SELECT Day, PuzzleSolution FROM tblIntroductionPuzzleInserts WHERE FoundSolution='false' AND UUID=?;");\r
 279         st.Bind(0,UUID);\r
 280         st.Step();\r
 281 \r
 282         if(st.RowReturned())\r
 283         {\r
 284                 st.ResultText(0,day);\r
 285                 st.ResultText(1,solution);\r
 286 \r
 287                 // get the hash of the solution\r
 288                 solutionhash.resize(20);\r
 289                 sha1((unsigned char *)solution.c_str(),solution.size(),&solutionhash[0]);\r
 290                 Hex::Encode(solutionhash,encodedhash);\r
 291 \r
 292                 //start request for the solution\r
 293                 message.SetName("ClientGet");\r
 294                 message["URI"]="KSK@"+m_messagebase+"|"+day+"|"+UUID+"|"+encodedhash+".xml";\r
 295                 message["Identifier"]="IdentityIntroductionRequester|"+message["URI"];\r
 296                 message["ReturnType"]="direct";\r
 297                 message["MaxSize"]="10000";\r
 298 \r
 299                 m_fcp->SendMessage(message);\r
 300 \r
 301                 m_requesting.push_back(UUID);\r
 302 \r
 303         }\r
 304 \r
 305 }\r
 306 \r
 307 void IdentityIntroductionRequester::StartRequests(const long localidentityid)\r
 308 {\r
 309         DateTime date;\r
 310         std::string localidentityidstr;\r
 311         std::string uuid;\r
 312 \r
 313         date.SetToGMTime();\r
 314         date.Add(0,0,0,-1);\r
 315         StringFunctions::Convert(localidentityid,localidentityidstr);\r
 316 \r
 317         // get all non-solved puzzles from yesterday and today for this identity\r
 318         SQLite3DB::Statement st=m_db->Prepare("SELECT UUID FROM tblIntroductionPuzzleInserts WHERE LocalIdentityID="+localidentityidstr+" AND Day>='"+date.Format("%Y-%m-%d")+"' AND FoundSolution='false';");\r
 319         st.Step();\r
 320 \r
 321         // start requests for all non-solved puzzles\r
 322         while(st.RowReturned())\r
 323         {\r
 324                 uuid="";\r
 325                 st.ResultText(0,uuid);\r
 326                 StartRequest(uuid);\r
 327                 st.Step();\r
 328         }\r
 329 \r
 330         m_ids[localidentityid]=true;\r
 331 \r
 332 }\r