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,AddedMethod) VALUES(?,?,?);");\r
  86                                 st.Bind(0,xml.GetIdentity());\r
  87                                 st.Bind(1,date.Format("%Y-%m-%d %H:%M:%S"));\r
  88                                 st.Bind(2,"solved captcha");\r
  89                                 st.Step();\r
  90                         }\r
  91                         st.Finalize();\r
  92 \r
  93                         m_log->WriteLog(LogFile::LOGLEVEL_DEBUG,"IdentityIntroductionRequester::HandleAddData parsed a valid identity.");\r
  94                 }\r
  95                 else\r
  96                 {\r
  97                         m_log->WriteLog(LogFile::LOGLEVEL_ERROR,"IdentityIntroductionRequester::HandleAllData parsed, public SSK key was not valid.");\r
  98                 }\r
  99 \r
 100                 m_log->WriteLog(LogFile::LOGLEVEL_DEBUG,"IdentityIntroductionRequester::HandleAllData parsed IdentityIntroduction XML file : "+message["Identifier"]);\r
 101         }\r
 102         else\r
 103         {\r
 104 \r
 105                 SQLite3DB::Statement st=m_db->Prepare("UPDATE tblIntroductionPuzzleInserts SET FoundSolution='true' WHERE UUID=?;");\r
 106                 st.Bind(0,idparts[3]);\r
 107                 st.Step();\r
 108                 st.Finalize();          \r
 109 \r
 110                 m_log->WriteLog(LogFile::LOGLEVEL_ERROR,"IdentityIntroductionRequester::HandleAllData error parsing IdentityIntroduction XML file : "+message["Identifier"]);\r
 111         }\r
 112 \r
 113         // remove UUID from request list\r
 114         RemoveFromRequestList(idparts[3]);\r
 115 \r
 116         return true;\r
 117 }\r
 118 \r
 119 const bool IdentityIntroductionRequester::HandleGetFailed(FCPMessage &message)\r
 120 {\r
 121         std::vector<std::string> idparts;\r
 122 \r
 123         StringFunctions::Split(message["Identifier"],"|",idparts);\r
 124 \r
 125         // fatal error - don't try to download again\r
 126         if(message["Fatal"]=="true")\r
 127         {\r
 128                 SQLite3DB::Statement st=m_db->Prepare("UPDATE tblIntroductionPuzzleInserts SET FoundSolution='true' WHERE UUID=?;");\r
 129                 st.Bind(0,idparts[3]);\r
 130                 st.Step();\r
 131                 st.Finalize();\r
 132 \r
 133                 m_log->WriteLog(LogFile::LOGLEVEL_DEBUG,"IdentityIntroductionRequester::HandleAllData Fatal GetFailed for "+message["Identifier"]);\r
 134         }\r
 135 \r
 136         // remove UUID from request list\r
 137         RemoveFromRequestList(idparts[3]);\r
 138 \r
 139         return true;\r
 140 }\r
 141 \r
 142 const bool IdentityIntroductionRequester::HandleMessage(FCPMessage &message)\r
 143 {\r
 144 \r
 145         if(message["Identifier"].find("IdentityIntroductionRequester")==0)\r
 146         {\r
 147                 \r
 148                 // ignore DataFound\r
 149                 if(message.GetName()=="DataFound")\r
 150                 {\r
 151                         return true;\r
 152                 }\r
 153 \r
 154                 if(message.GetName()=="AllData")\r
 155                 {\r
 156                         return HandleAllData(message);\r
 157                 }\r
 158 \r
 159                 if(message.GetName()=="GetFailed")\r
 160                 {\r
 161                         return HandleGetFailed(message);\r
 162                 }\r
 163 \r
 164                 if(message.GetName()=="IdentifierCollision")\r
 165                 {\r
 166                         // remove one of the ids from the requesting list\r
 167                         std::vector<std::string> idparts;\r
 168                         StringFunctions::Split(message["Identifier"],"|",idparts);\r
 169                         RemoveFromRequestList(idparts[3]);\r
 170                         return true;\r
 171                 }\r
 172 \r
 173         }\r
 174 \r
 175         return false;\r
 176 }\r
 177 \r
 178 void IdentityIntroductionRequester::Initialize()\r
 179 {\r
 180         std::string tempval="";\r
 181         Option::Instance()->Get("MaxIdentityIntroductionRequests",tempval);\r
 182         StringFunctions::Convert(tempval,m_maxrequests);\r
 183         if(m_maxrequests<1)\r
 184         {\r
 185                 m_maxrequests=1;\r
 186                 m_log->WriteLog(LogFile::LOGLEVEL_ERROR,"Option MaxIdentityIntroductionRequests is currently set at "+tempval+".  It must be 1 or greater.");\r
 187         }\r
 188         if(m_maxrequests>100)\r
 189         {\r
 190                 m_log->WriteLog(LogFile::LOGLEVEL_WARNING,"Option MaxIdentityIntroductionRequests is currently set at "+tempval+".  This value might be incorrectly configured.");\r
 191         }\r
 192         Option::Instance()->Get("MessageBase",m_messagebase);\r
 193         m_tempdate.SetToGMTime();\r
 194 }\r
 195 \r
 196 void IdentityIntroductionRequester::PopulateIDList()\r
 197 {\r
 198         DateTime date;\r
 199         int id;\r
 200 \r
 201         date.SetToGMTime();\r
 202         date.Add(0,0,0,-1);\r
 203 \r
 204         // get all identities that have unsolved puzzles from yesterday or today\r
 205         SQLite3DB::Statement st=m_db->Prepare("SELECT LocalIdentityID FROM tblIntroductionPuzzleInserts WHERE Day>='"+date.Format("%Y-%m-%d")+"' AND FoundSolution='false' GROUP BY LocalIdentityID;");\r
 206         st.Step();\r
 207 \r
 208         m_ids.clear();\r
 209 \r
 210         while(st.RowReturned())\r
 211         {\r
 212                 st.ResultInt(0,id);\r
 213                 m_ids[id]=false;\r
 214                 st.Step();\r
 215         }\r
 216 \r
 217 }\r
 218 \r
 219 void IdentityIntroductionRequester::Process()\r
 220 {\r
 221         // max is the smaller of the config value or the total number of identities we will request from\r
 222         long max=m_maxrequests>m_ids.size() ? m_ids.size() : m_maxrequests;\r
 223 \r
 224                 // try to keep up to max requests going\r
 225         if(m_requesting.size()<max)\r
 226         {\r
 227                 std::map<long,bool>::iterator i=m_ids.begin();\r
 228                 while(i!=m_ids.end() && (*i).second==true)\r
 229                 {\r
 230                         i++;\r
 231                 }\r
 232 \r
 233                 if(i!=m_ids.end())\r
 234                 {\r
 235                         StartRequests((*i).first);\r
 236                 }\r
 237                 else\r
 238                 {\r
 239                         // we requested from all ids in the list, repopulate the list\r
 240                         PopulateIDList();\r
 241                 }\r
 242         }\r
 243         // 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
 244         // this will recheck for ids every minute\r
 245         DateTime now;\r
 246         now.SetToGMTime();\r
 247         if(m_ids.size()==0 && m_tempdate<(now-(1.0/1440.0)))\r
 248         {\r
 249                 PopulateIDList();\r
 250                 m_tempdate=now;\r
 251         }\r
 252 }\r
 253 \r
 254 void IdentityIntroductionRequester::RegisterWithThread(FreenetMasterThread *thread)\r
 255 {\r
 256         thread->RegisterFCPConnected(this);\r
 257         thread->RegisterFCPMessageHandler(this);\r
 258         thread->RegisterPeriodicProcessor(this);\r
 259 }\r
 260 \r
 261 void IdentityIntroductionRequester::RemoveFromRequestList(const std::string &UUID)\r
 262 {\r
 263         std::vector<std::string>::iterator i=m_requesting.begin();\r
 264         while(i!=m_requesting.end() && (*i)!=UUID)\r
 265         {\r
 266                 i++;\r
 267         }\r
 268         if(i!=m_requesting.end())\r
 269         {\r
 270                 m_requesting.erase(i);\r
 271         }\r
 272 }\r
 273 \r
 274 void IdentityIntroductionRequester::StartRequest(const std::string &UUID)\r
 275 {\r
 276         std::string day;\r
 277         std::string solution;\r
 278         std::vector<unsigned char> solutionhash;\r
 279         std::string encodedhash;\r
 280         FCPMessage message;\r
 281         SQLite3DB::Statement st=m_db->Prepare("SELECT Day, PuzzleSolution FROM tblIntroductionPuzzleInserts WHERE FoundSolution='false' AND UUID=?;");\r
 282         st.Bind(0,UUID);\r
 283         st.Step();\r
 284 \r
 285         if(st.RowReturned())\r
 286         {\r
 287                 st.ResultText(0,day);\r
 288                 st.ResultText(1,solution);\r
 289 \r
 290                 // get the hash of the solution\r
 291                 solutionhash.resize(20);\r
 292                 sha1((unsigned char *)solution.c_str(),solution.size(),&solutionhash[0]);\r
 293                 Hex::Encode(solutionhash,encodedhash);\r
 294 \r
 295                 //start request for the solution\r
 296                 message.SetName("ClientGet");\r
 297                 message["URI"]="KSK@"+m_messagebase+"|"+day+"|"+UUID+"|"+encodedhash+".xml";\r
 298                 message["Identifier"]="IdentityIntroductionRequester|"+message["URI"];\r
 299                 message["ReturnType"]="direct";\r
 300                 message["MaxSize"]="10000";\r
 301 \r
 302                 m_fcp->SendMessage(message);\r
 303 \r
 304                 m_requesting.push_back(UUID);\r
 305 \r
 306         }\r
 307 \r
 308 }\r
 309 \r
 310 void IdentityIntroductionRequester::StartRequests(const long localidentityid)\r
 311 {\r
 312         DateTime date;\r
 313         std::string localidentityidstr;\r
 314         std::string uuid;\r
 315 \r
 316         date.SetToGMTime();\r
 317         date.Add(0,0,0,-1);\r
 318         StringFunctions::Convert(localidentityid,localidentityidstr);\r
 319 \r
 320         // get all non-solved puzzles from yesterday and today for this identity\r
 321         SQLite3DB::Statement st=m_db->Prepare("SELECT UUID FROM tblIntroductionPuzzleInserts WHERE LocalIdentityID="+localidentityidstr+" AND Day>='"+date.Format("%Y-%m-%d")+"' AND FoundSolution='false';");\r
 322         st.Step();\r
 323 \r
 324         // start requests for all non-solved puzzles\r
 325         while(st.RowReturned())\r
 326         {\r
 327                 uuid="";\r
 328                 st.ResultText(0,uuid);\r
 329                 StartRequest(uuid);\r
 330                 st.Step();\r
 331         }\r
 332 \r
 333         m_ids[localidentityid]=true;\r
 334 \r
 335 }\r