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/hex.h"\r
   7 \r
   8 #include <Poco/DateTime.h>\r
   9 #include <Poco/Timestamp.h>\r
  10 #include <Poco/DateTimeFormatter.h>\r
  11 #include <Poco/SHA1Engine.h>\r
  12 \r
  13 #ifdef XMEM\r
  14         #include <xmem.h>\r
  15 #endif\r
  16 \r
  17 IdentityIntroductionRequester::IdentityIntroductionRequester()\r
  18 {\r
  19         Initialize();\r
  20 }\r
  21 \r
  22 IdentityIntroductionRequester::IdentityIntroductionRequester(FCPv2 *fcp):IFCPConnected(fcp)\r
  23 {\r
  24         Initialize();\r
  25 }\r
  26 \r
  27 void IdentityIntroductionRequester::FCPConnected()\r
  28 {\r
  29         m_requesting.clear();\r
  30         PopulateIDList();\r
  31 }\r
  32 \r
  33 void IdentityIntroductionRequester::FCPDisconnected()\r
  34 {\r
  35         \r
  36 }\r
  37 \r
  38 const bool IdentityIntroductionRequester::HandleAllData(FCPMessage &message)\r
  39 {\r
  40         FreenetSSK ssk;\r
  41         Poco::DateTime date;\r
  42         std::vector<std::string> idparts;\r
  43         std::vector<char> data;\r
  44         long datalength;\r
  45         IdentityIntroductionXML xml;\r
  46 \r
  47         StringFunctions::Split(message["Identifier"],"|",idparts);\r
  48         StringFunctions::Convert(message["DataLength"],datalength);\r
  49 \r
  50         // wait for all data to be received from connection\r
  51         while(m_fcp->Connected() && m_fcp->ReceiveBufferSize()<datalength)\r
  52         {\r
  53                 m_fcp->Update(1);\r
  54         }\r
  55 \r
  56         // if we got disconnected- return immediately\r
  57         if(m_fcp->Connected()==false)\r
  58         {\r
  59                 return false;\r
  60         }\r
  61 \r
  62         // receive the file\r
  63         data.resize(datalength);\r
  64         if(data.size()>0)\r
  65         {\r
  66                 m_fcp->ReceiveRaw(&data[0],datalength);\r
  67         }\r
  68 \r
  69         // parse file into xml and update the database\r
  70         if(data.size()>0 && xml.ParseXML(std::string(data.begin(),data.end()))==true)\r
  71         {\r
  72 \r
  73                 ssk.SetPublicKey(xml.GetIdentity());\r
  74 \r
  75                 // mark puzzle found\r
  76                 SQLite3DB::Statement st=m_db->Prepare("UPDATE tblIntroductionPuzzleInserts SET FoundSolution='true' WHERE UUID=?;");\r
  77                 st.Bind(0,idparts[3]);\r
  78                 st.Step();\r
  79                 st.Finalize();\r
  80 \r
  81                 if(ssk.ValidPublicKey()==true)\r
  82                 {\r
  83                         // try to find existing identity with this SSK\r
  84                         st=m_db->Prepare("SELECT IdentityID FROM tblIdentity WHERE PublicKey=?;");\r
  85                         st.Bind(0,xml.GetIdentity());\r
  86                         st.Step();\r
  87                         if(st.RowReturned()==false)\r
  88                         {\r
  89                                 // we don't already know about this id - add it\r
  90                                 st.Finalize();\r
  91                                 date=Poco::Timestamp();\r
  92                                 st=m_db->Prepare("INSERT INTO tblIdentity(PublicKey,DateAdded,AddedMethod) VALUES(?,?,?);");\r
  93                                 st.Bind(0,xml.GetIdentity());\r
  94                                 st.Bind(1,Poco::DateTimeFormatter::format(date,"%Y-%m-%d %H:%M:%S"));\r
  95                                 st.Bind(2,"solved captcha");\r
  96                                 st.Step();\r
  97                         }\r
  98                         st.Finalize();\r
  99 \r
 100                         m_log->debug("IdentityIntroductionRequester::HandleAddData parsed a valid identity.");\r
 101                 }\r
 102                 else\r
 103                 {\r
 104                         m_log->error("IdentityIntroductionRequester::HandleAllData parsed, public SSK key was not valid.");\r
 105                 }\r
 106 \r
 107                 m_log->debug("IdentityIntroductionRequester::HandleAllData parsed IdentityIntroduction XML file : "+message["Identifier"]);\r
 108         }\r
 109         else\r
 110         {\r
 111 \r
 112                 SQLite3DB::Statement st=m_db->Prepare("UPDATE tblIntroductionPuzzleInserts SET FoundSolution='true' WHERE UUID=?;");\r
 113                 st.Bind(0,idparts[3]);\r
 114                 st.Step();\r
 115                 st.Finalize();          \r
 116 \r
 117                 m_log->error("IdentityIntroductionRequester::HandleAllData error parsing IdentityIntroduction XML file : "+message["Identifier"]);\r
 118         }\r
 119 \r
 120         // remove UUID from request list\r
 121         RemoveFromRequestList(idparts[3]);\r
 122 \r
 123         return true;\r
 124 }\r
 125 \r
 126 const bool IdentityIntroductionRequester::HandleGetFailed(FCPMessage &message)\r
 127 {\r
 128         std::vector<std::string> idparts;\r
 129 \r
 130         StringFunctions::Split(message["Identifier"],"|",idparts);\r
 131 \r
 132         // fatal error - don't try to download again\r
 133         if(message["Fatal"]=="true")\r
 134         {\r
 135                 SQLite3DB::Statement st=m_db->Prepare("UPDATE tblIntroductionPuzzleInserts SET FoundSolution='true' WHERE UUID=?;");\r
 136                 st.Bind(0,idparts[3]);\r
 137                 st.Step();\r
 138                 st.Finalize();\r
 139 \r
 140                 m_log->debug("IdentityIntroductionRequester::HandleAllData Fatal GetFailed for "+message["Identifier"]);\r
 141         }\r
 142 \r
 143         // remove UUID from request list\r
 144         RemoveFromRequestList(idparts[3]);\r
 145 \r
 146         return true;\r
 147 }\r
 148 \r
 149 const bool IdentityIntroductionRequester::HandleMessage(FCPMessage &message)\r
 150 {\r
 151 \r
 152         if(message["Identifier"].find("IdentityIntroductionRequester")==0)\r
 153         {\r
 154                 \r
 155                 // ignore DataFound\r
 156                 if(message.GetName()=="DataFound")\r
 157                 {\r
 158                         return true;\r
 159                 }\r
 160 \r
 161                 if(message.GetName()=="AllData")\r
 162                 {\r
 163                         return HandleAllData(message);\r
 164                 }\r
 165 \r
 166                 if(message.GetName()=="GetFailed")\r
 167                 {\r
 168                         return HandleGetFailed(message);\r
 169                 }\r
 170 \r
 171                 if(message.GetName()=="IdentifierCollision")\r
 172                 {\r
 173                         // remove one of the ids from the requesting list\r
 174                         std::vector<std::string> idparts;\r
 175                         StringFunctions::Split(message["Identifier"],"|",idparts);\r
 176                         RemoveFromRequestList(idparts[3]);\r
 177                         return true;\r
 178                 }\r
 179 \r
 180         }\r
 181 \r
 182         return false;\r
 183 }\r
 184 \r
 185 void IdentityIntroductionRequester::Initialize()\r
 186 {\r
 187         m_maxrequests=0;\r
 188         Option::Instance()->GetInt("MaxIdentityIntroductionRequests",m_maxrequests);\r
 189         if(m_maxrequests<1)\r
 190         {\r
 191                 m_maxrequests=1;\r
 192                 m_log->error("Option MaxIdentityIntroductionRequests is currently less than 1.  It must be 1 or greater.");\r
 193         }\r
 194         if(m_maxrequests>100)\r
 195         {\r
 196                 m_log->warning("Option MaxIdentityIntroductionRequests is currently set at more than 100.  This value might be incorrectly configured.");\r
 197         }\r
 198         Option::Instance()->Get("MessageBase",m_messagebase);\r
 199         m_tempdate=Poco::Timestamp();\r
 200 }\r
 201 \r
 202 void IdentityIntroductionRequester::PopulateIDList()\r
 203 {\r
 204         Poco::DateTime date;\r
 205         int id;\r
 206 \r
 207         date-=Poco::Timespan(1,0,0,0,0);\r
 208 \r
 209         // get all identities that have unsolved puzzles from yesterday or today\r
 210         SQLite3DB::Statement st=m_db->Prepare("SELECT LocalIdentityID FROM tblIntroductionPuzzleInserts WHERE Day>='"+Poco::DateTimeFormatter::format(date,"%Y-%m-%d")+"' AND FoundSolution='false' GROUP BY LocalIdentityID;");\r
 211         st.Step();\r
 212 \r
 213         m_ids.clear();\r
 214 \r
 215         while(st.RowReturned())\r
 216         {\r
 217                 st.ResultInt(0,id);\r
 218                 m_ids[id]=false;\r
 219                 st.Step();\r
 220         }\r
 221 \r
 222 }\r
 223 \r
 224 void IdentityIntroductionRequester::Process()\r
 225 {\r
 226         // max is the smaller of the config value or the total number of identities we will request from\r
 227         long max=m_maxrequests>m_ids.size() ? m_ids.size() : m_maxrequests;\r
 228 \r
 229                 // try to keep up to max requests going\r
 230         if(m_requesting.size()<max)\r
 231         {\r
 232                 std::map<long,bool>::iterator i=m_ids.begin();\r
 233                 while(i!=m_ids.end() && (*i).second==true)\r
 234                 {\r
 235                         i++;\r
 236                 }\r
 237 \r
 238                 if(i!=m_ids.end())\r
 239                 {\r
 240                         StartRequests((*i).first);\r
 241                 }\r
 242                 else\r
 243                 {\r
 244                         // we requested from all ids in the list, repopulate the list\r
 245                         PopulateIDList();\r
 246                 }\r
 247         }\r
 248         // 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
 249         // this will recheck for ids every minute\r
 250         Poco::DateTime now;\r
 251         if(m_ids.size()==0 && m_tempdate<(now-Poco::Timespan(0,0,1,0,0)))\r
 252         {\r
 253                 PopulateIDList();\r
 254                 m_tempdate=now;\r
 255         }\r
 256 }\r
 257 \r
 258 void IdentityIntroductionRequester::RegisterWithThread(FreenetMasterThread *thread)\r
 259 {\r
 260         thread->RegisterFCPConnected(this);\r
 261         thread->RegisterFCPMessageHandler(this);\r
 262         thread->RegisterPeriodicProcessor(this);\r
 263 }\r
 264 \r
 265 void IdentityIntroductionRequester::RemoveFromRequestList(const std::string &UUID)\r
 266 {\r
 267         std::vector<std::string>::iterator i=m_requesting.begin();\r
 268         while(i!=m_requesting.end() && (*i)!=UUID)\r
 269         {\r
 270                 i++;\r
 271         }\r
 272         if(i!=m_requesting.end())\r
 273         {\r
 274                 m_requesting.erase(i);\r
 275         }\r
 276 }\r
 277 \r
 278 void IdentityIntroductionRequester::StartRequest(const std::string &UUID)\r
 279 {\r
 280         std::string day;\r
 281         std::string solution;\r
 282         std::string encodedhash;\r
 283         FCPMessage message;\r
 284         SQLite3DB::Statement st=m_db->Prepare("SELECT Day, PuzzleSolution FROM tblIntroductionPuzzleInserts WHERE FoundSolution='false' AND UUID=?;");\r
 285         st.Bind(0,UUID);\r
 286         st.Step();\r
 287 \r
 288         if(st.RowReturned())\r
 289         {\r
 290                 st.ResultText(0,day);\r
 291                 st.ResultText(1,solution);\r
 292 \r
 293                 // get the hash of the solution\r
 294                 Poco::SHA1Engine sha1;\r
 295                 sha1.update(solution);\r
 296                 encodedhash=Poco::DigestEngine::digestToHex(sha1.digest());\r
 297                 StringFunctions::UpperCase(encodedhash,encodedhash);\r
 298 \r
 299                 //start request for the solution\r
 300                 message.SetName("ClientGet");\r
 301                 message["URI"]="KSK@"+m_messagebase+"|"+day+"|"+UUID+"|"+encodedhash+".xml";\r
 302                 message["Identifier"]="IdentityIntroductionRequester|"+message["URI"];\r
 303                 message["ReturnType"]="direct";\r
 304                 message["MaxSize"]="10000";\r
 305 \r
 306                 m_fcp->SendMessage(message);\r
 307 \r
 308                 m_requesting.push_back(UUID);\r
 309 \r
 310         }\r
 311 \r
 312 }\r
 313 \r
 314 void IdentityIntroductionRequester::StartRequests(const long localidentityid)\r
 315 {\r
 316         Poco::DateTime date;\r
 317         std::string localidentityidstr;\r
 318         std::string uuid;\r
 319 \r
 320         date-=Poco::Timespan(1,0,0,0,0);\r
 321         StringFunctions::Convert(localidentityid,localidentityidstr);\r
 322 \r
 323         // get all non-solved puzzles from yesterday and today for this identity\r
 324         SQLite3DB::Statement st=m_db->Prepare("SELECT UUID FROM tblIntroductionPuzzleInserts WHERE LocalIdentityID="+localidentityidstr+" AND Day>='"+Poco::DateTimeFormatter::format(date,"%Y-%m-%d")+"' AND FoundSolution='false';");\r
 325         st.Step();\r
 326 \r
 327         // start requests for all non-solved puzzles\r
 328         while(st.RowReturned())\r
 329         {\r
 330                 uuid="";\r
 331                 st.ResultText(0,uuid);\r
 332                 StartRequest(uuid);\r
 333                 st.Step();\r
 334         }\r
 335 \r
 336         m_ids[localidentityid]=true;\r
 337 \r
 338 }\r