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         m_fcp->ReceiveRaw(&data[0],datalength);\r
  65 \r
  66         // parse file into xml and update the database\r
  67         if(xml.ParseXML(std::string(data.begin(),data.end()))==true)\r
  68         {\r
  69 \r
  70                 ssk.SetPublicKey(xml.GetIdentity());\r
  71 \r
  72                 // mark puzzle found\r
  73                 SQLite3DB::Statement st=m_db->Prepare("UPDATE tblIntroductionPuzzleInserts SET FoundSolution='true' WHERE UUID=?;");\r
  74                 st.Bind(0,idparts[3]);\r
  75                 st.Step();\r
  76                 st.Finalize();\r
  77 \r
  78                 if(ssk.ValidPublicKey()==true)\r
  79                 {\r
  80                         // try to find existing identity with this SSK\r
  81                         st=m_db->Prepare("SELECT IdentityID FROM tblIdentity WHERE PublicKey=?;");\r
  82                         st.Bind(0,xml.GetIdentity());\r
  83                         st.Step();\r
  84                         if(st.RowReturned()==false)\r
  85                         {\r
  86                                 // we don't already know about this id - add it\r
  87                                 st.Finalize();\r
  88                                 date=Poco::Timestamp();\r
  89                                 st=m_db->Prepare("INSERT INTO tblIdentity(PublicKey,DateAdded,AddedMethod) VALUES(?,?,?);");\r
  90                                 st.Bind(0,xml.GetIdentity());\r
  91                                 st.Bind(1,Poco::DateTimeFormatter::format(date,"%Y-%m-%d %H:%M:%S"));\r
  92                                 st.Bind(2,"solved captcha");\r
  93                                 st.Step();\r
  94                         }\r
  95                         st.Finalize();\r
  96 \r
  97                         m_log->debug("IdentityIntroductionRequester::HandleAddData parsed a valid identity.");\r
  98                 }\r
  99                 else\r
 100                 {\r
 101                         m_log->error("IdentityIntroductionRequester::HandleAllData parsed, public SSK key was not valid.");\r
 102                 }\r
 103 \r
 104                 m_log->debug("IdentityIntroductionRequester::HandleAllData parsed IdentityIntroduction XML file : "+message["Identifier"]);\r
 105         }\r
 106         else\r
 107         {\r
 108 \r
 109                 SQLite3DB::Statement st=m_db->Prepare("UPDATE tblIntroductionPuzzleInserts SET FoundSolution='true' WHERE UUID=?;");\r
 110                 st.Bind(0,idparts[3]);\r
 111                 st.Step();\r
 112                 st.Finalize();          \r
 113 \r
 114                 m_log->error("IdentityIntroductionRequester::HandleAllData error parsing IdentityIntroduction XML file : "+message["Identifier"]);\r
 115         }\r
 116 \r
 117         // remove UUID from request list\r
 118         RemoveFromRequestList(idparts[3]);\r
 119 \r
 120         return true;\r
 121 }\r
 122 \r
 123 const bool IdentityIntroductionRequester::HandleGetFailed(FCPMessage &message)\r
 124 {\r
 125         std::vector<std::string> idparts;\r
 126 \r
 127         StringFunctions::Split(message["Identifier"],"|",idparts);\r
 128 \r
 129         // fatal error - don't try to download again\r
 130         if(message["Fatal"]=="true")\r
 131         {\r
 132                 SQLite3DB::Statement st=m_db->Prepare("UPDATE tblIntroductionPuzzleInserts SET FoundSolution='true' WHERE UUID=?;");\r
 133                 st.Bind(0,idparts[3]);\r
 134                 st.Step();\r
 135                 st.Finalize();\r
 136 \r
 137                 m_log->debug("IdentityIntroductionRequester::HandleAllData Fatal GetFailed for "+message["Identifier"]);\r
 138         }\r
 139 \r
 140         // remove UUID from request list\r
 141         RemoveFromRequestList(idparts[3]);\r
 142 \r
 143         return true;\r
 144 }\r
 145 \r
 146 const bool IdentityIntroductionRequester::HandleMessage(FCPMessage &message)\r
 147 {\r
 148 \r
 149         if(message["Identifier"].find("IdentityIntroductionRequester")==0)\r
 150         {\r
 151                 \r
 152                 // ignore DataFound\r
 153                 if(message.GetName()=="DataFound")\r
 154                 {\r
 155                         return true;\r
 156                 }\r
 157 \r
 158                 if(message.GetName()=="AllData")\r
 159                 {\r
 160                         return HandleAllData(message);\r
 161                 }\r
 162 \r
 163                 if(message.GetName()=="GetFailed")\r
 164                 {\r
 165                         return HandleGetFailed(message);\r
 166                 }\r
 167 \r
 168                 if(message.GetName()=="IdentifierCollision")\r
 169                 {\r
 170                         // remove one of the ids from the requesting list\r
 171                         std::vector<std::string> idparts;\r
 172                         StringFunctions::Split(message["Identifier"],"|",idparts);\r
 173                         RemoveFromRequestList(idparts[3]);\r
 174                         return true;\r
 175                 }\r
 176 \r
 177         }\r
 178 \r
 179         return false;\r
 180 }\r
 181 \r
 182 void IdentityIntroductionRequester::Initialize()\r
 183 {\r
 184         m_maxrequests=0;\r
 185         Option::Instance()->GetInt("MaxIdentityIntroductionRequests",m_maxrequests);\r
 186         if(m_maxrequests<1)\r
 187         {\r
 188                 m_maxrequests=1;\r
 189                 m_log->error("Option MaxIdentityIntroductionRequests is currently less than 1.  It must be 1 or greater.");\r
 190         }\r
 191         if(m_maxrequests>100)\r
 192         {\r
 193                 m_log->warning("Option MaxIdentityIntroductionRequests is currently set at more than 100.  This value might be incorrectly configured.");\r
 194         }\r
 195         Option::Instance()->Get("MessageBase",m_messagebase);\r
 196         m_tempdate=Poco::Timestamp();\r
 197 }\r
 198 \r
 199 void IdentityIntroductionRequester::PopulateIDList()\r
 200 {\r
 201         Poco::DateTime date;\r
 202         int id;\r
 203 \r
 204         date-=Poco::Timespan(1,0,0,0,0);\r
 205 \r
 206         // get all identities that have unsolved puzzles from yesterday or today\r
 207         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
 208         st.Step();\r
 209 \r
 210         m_ids.clear();\r
 211 \r
 212         while(st.RowReturned())\r
 213         {\r
 214                 st.ResultInt(0,id);\r
 215                 m_ids[id]=false;\r
 216                 st.Step();\r
 217         }\r
 218 \r
 219 }\r
 220 \r
 221 void IdentityIntroductionRequester::Process()\r
 222 {\r
 223         // max is the smaller of the config value or the total number of identities we will request from\r
 224         long max=m_maxrequests>m_ids.size() ? m_ids.size() : m_maxrequests;\r
 225 \r
 226                 // try to keep up to max requests going\r
 227         if(m_requesting.size()<max)\r
 228         {\r
 229                 std::map<long,bool>::iterator i=m_ids.begin();\r
 230                 while(i!=m_ids.end() && (*i).second==true)\r
 231                 {\r
 232                         i++;\r
 233                 }\r
 234 \r
 235                 if(i!=m_ids.end())\r
 236                 {\r
 237                         StartRequests((*i).first);\r
 238                 }\r
 239                 else\r
 240                 {\r
 241                         // we requested from all ids in the list, repopulate the list\r
 242                         PopulateIDList();\r
 243                 }\r
 244         }\r
 245         // 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
 246         // this will recheck for ids every minute\r
 247         Poco::DateTime now;\r
 248         if(m_ids.size()==0 && m_tempdate<(now-Poco::Timespan(0,0,1,0,0)))\r
 249         {\r
 250                 PopulateIDList();\r
 251                 m_tempdate=now;\r
 252         }\r
 253 }\r
 254 \r
 255 void IdentityIntroductionRequester::RegisterWithThread(FreenetMasterThread *thread)\r
 256 {\r
 257         thread->RegisterFCPConnected(this);\r
 258         thread->RegisterFCPMessageHandler(this);\r
 259         thread->RegisterPeriodicProcessor(this);\r
 260 }\r
 261 \r
 262 void IdentityIntroductionRequester::RemoveFromRequestList(const std::string &UUID)\r
 263 {\r
 264         std::vector<std::string>::iterator i=m_requesting.begin();\r
 265         while(i!=m_requesting.end() && (*i)!=UUID)\r
 266         {\r
 267                 i++;\r
 268         }\r
 269         if(i!=m_requesting.end())\r
 270         {\r
 271                 m_requesting.erase(i);\r
 272         }\r
 273 }\r
 274 \r
 275 void IdentityIntroductionRequester::StartRequest(const std::string &UUID)\r
 276 {\r
 277         std::string day;\r
 278         std::string solution;\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                 Poco::SHA1Engine sha1;\r
 292                 sha1.update(solution);\r
 293                 encodedhash=Poco::DigestEngine::digestToHex(sha1.digest());\r
 294                 StringFunctions::UpperCase(encodedhash,encodedhash);\r
 295 \r
 296                 //start request for the solution\r
 297                 message.SetName("ClientGet");\r
 298                 message["URI"]="KSK@"+m_messagebase+"|"+day+"|"+UUID+"|"+encodedhash+".xml";\r
 299                 message["Identifier"]="IdentityIntroductionRequester|"+message["URI"];\r
 300                 message["ReturnType"]="direct";\r
 301                 message["MaxSize"]="10000";\r
 302 \r
 303                 m_fcp->SendMessage(message);\r
 304 \r
 305                 m_requesting.push_back(UUID);\r
 306 \r
 307         }\r
 308 \r
 309 }\r
 310 \r
 311 void IdentityIntroductionRequester::StartRequests(const long localidentityid)\r
 312 {\r
 313         Poco::DateTime date;\r
 314         std::string localidentityidstr;\r
 315         std::string uuid;\r
 316 \r
 317         date-=Poco::Timespan(1,0,0,0,0);\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>='"+Poco::DateTimeFormatter::format(date,"%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