src/freenet/introductionpuzzlerequester.cpp

   1 #include "../../include/freenet/introductionpuzzlerequester.h"\r
   2 #include "../../include/freenet/introductionpuzzlexml.h"\r
   3 #include "../../include/option.h"\r
   4 #include "../../include/stringfunctions.h"\r
   5 #include "../../include/bitmapvalidator.h"\r
   6 #include "../../include/base64.h"\r
   7 \r
   8 #include <Poco/DateTime.h>\r
   9 #include <Poco/Timespan.h>\r
  10 #include <Poco/Timestamp.h>\r
  11 #include <Poco/DateTimeFormatter.h>\r
  12 \r
  13 #ifdef XMEM\r
  14         #include <xmem.h>\r
  15 #endif\r
  16 \r
  17 IntroductionPuzzleRequester::IntroductionPuzzleRequester()\r
  18 {\r
  19         Initialize();\r
  20 }\r
  21 \r
  22 IntroductionPuzzleRequester::IntroductionPuzzleRequester(FCPv2 *fcp):IFCPConnected(fcp)\r
  23 {\r
  24         Initialize();\r
  25 }\r
  26 \r
  27 void IntroductionPuzzleRequester::FCPConnected()\r
  28 {\r
  29         m_requesting.clear();\r
  30         PopulateIDList();\r
  31 }\r
  32 \r
  33 void IntroductionPuzzleRequester::FCPDisconnected()\r
  34 {\r
  35         \r
  36 }\r
  37 \r
  38 const bool IntroductionPuzzleRequester::HandleAllData(FCPMessage &message)\r
  39 {\r
  40         Poco::DateTime now;\r
  41         SQLite3DB::Statement st;\r
  42         std::vector<std::string> idparts;\r
  43         long datalength;\r
  44         std::vector<char> data;\r
  45         IntroductionPuzzleXML xml;\r
  46         long identityid;\r
  47         long index;\r
  48         bool validmessage=true;\r
  49 \r
  50         StringFunctions::Split(message["Identifier"],"|",idparts);\r
  51         StringFunctions::Convert(message["DataLength"],datalength);\r
  52         StringFunctions::Convert(idparts[1],identityid);\r
  53         StringFunctions::Convert(idparts[2],index);\r
  54 \r
  55         // wait for all data to be received from connection\r
  56         while(m_fcp->Connected() && m_fcp->ReceiveBufferSize()<datalength)\r
  57         {\r
  58                 m_fcp->Update(1);\r
  59         }\r
  60 \r
  61         // if we got disconnected- return immediately\r
  62         if(m_fcp->Connected()==false)\r
  63         {\r
  64                 return false;\r
  65         }\r
  66 \r
  67         // receive the file\r
  68         data.resize(datalength);\r
  69         m_fcp->ReceiveRaw(&data[0],datalength);\r
  70 \r
  71         // parse file into xml and update the database\r
  72         if(xml.ParseXML(std::string(data.begin(),data.end()))==true)\r
  73         {\r
  74 \r
  75                 // check if last part of UUID matches first part of public key of identity who inserted it\r
  76                 st=m_db->Prepare("SELECT PublicKey FROM tblIdentity WHERE IdentityID=?;");\r
  77                 st.Bind(0,identityid);\r
  78                 st.Step();\r
  79                 if(st.RowReturned())\r
  80                 {\r
  81                         std::vector<std::string> uuidparts;\r
  82                         std::vector<std::string> keyparts;\r
  83                         std::string keypart="";\r
  84                         std::string publickey="";\r
  85 \r
  86                         st.ResultText(0,publickey);\r
  87 \r
  88                         StringFunctions::SplitMultiple(publickey,"@,",keyparts);\r
  89                         StringFunctions::SplitMultiple(xml.GetUUID(),"@",uuidparts);\r
  90 \r
  91                         if(uuidparts.size()>1 && keyparts.size()>1)\r
  92                         {\r
  93                                 keypart=StringFunctions::Replace(StringFunctions::Replace(keyparts[1],"-",""),"~","");\r
  94                                 if(keypart!=uuidparts[1])\r
  95                                 {\r
  96                                         m_log->error("IntroductionPuzzleRequester::HandleAllData UUID in IntroductionPuzzle doesn't match public key of identity : "+message["Identifier"]);\r
  97                                         validmessage=false;\r
  98                                 }\r
  99                         }\r
 100                         else\r
 101                         {\r
 102                                 m_log->error("IntroductionPuzzleRequester::HandleAllData Error with identity's public key or UUID : "+message["Identifier"]);\r
 103                                 validmessage=false;\r
 104                         }\r
 105 \r
 106                 }\r
 107                 else\r
 108                 {\r
 109                         m_log->error("IntroductionPuzzleRequester::HandleAllData Error couldn't find identity : "+message["Identifier"]);\r
 110                         validmessage=false;\r
 111                 }\r
 112 \r
 113                 // we can only validate bitmaps for now\r
 114                 BitmapValidator val;\r
 115                 val.SetMax(200,200);\r
 116                 std::vector<unsigned char> puzzledata;\r
 117                 Base64::Decode(xml.GetPuzzleData(),puzzledata);\r
 118                 if(xml.GetMimeType()!="image/bmp" || val.Validate(puzzledata)==false)\r
 119                 {\r
 120                         m_log->error("IntroductionPuzzleRequester::HandleAllData received bad mime type and/or data for "+message["Identifier"]);\r
 121                         validmessage=false;\r
 122                 }\r
 123 \r
 124                 st=m_db->Prepare("INSERT INTO tblIntroductionPuzzleRequests(IdentityID,Day,RequestIndex,Found,UUID,Type,MimeType,PuzzleData) VALUES(?,?,?,?,?,?,?,?);");\r
 125                 st.Bind(0,identityid);\r
 126                 st.Bind(1,idparts[4]);\r
 127                 st.Bind(2,index);\r
 128                 if(validmessage)\r
 129                 {\r
 130                         st.Bind(3,"true");\r
 131                         st.Bind(4,xml.GetUUID());\r
 132                         st.Bind(5,xml.GetType());\r
 133                         st.Bind(6,xml.GetMimeType());\r
 134                         st.Bind(7,xml.GetPuzzleData());\r
 135                 }\r
 136                 else\r
 137                 {\r
 138                         st.Bind(3,"false");\r
 139                         st.Bind(4);\r
 140                         st.Bind(5);\r
 141                         st.Bind(6);\r
 142                         st.Bind(7);\r
 143                 }\r
 144                 st.Step();\r
 145                 st.Finalize();\r
 146 \r
 147                 m_log->debug("IntroductionPuzzleRequester::HandleAllData parsed IntroductionPuzzle XML file : "+message["Identifier"]);\r
 148         }\r
 149         else\r
 150         {\r
 151                 // bad data - mark index\r
 152                 st=m_db->Prepare("INSERT INTO tblIntroductionPuzzleRequests(IdentityID,Day,RequestIndex,Found) VALUES(?,?,?,'false');");\r
 153                 st.Bind(0,identityid);\r
 154                 st.Bind(1,idparts[4]);\r
 155                 st.Bind(2,index);\r
 156                 st.Step();\r
 157                 st.Finalize();\r
 158 \r
 159                 m_log->error("IntroductionPuzzleRequester::HandleAllData error parsing IntroductionPuzzle XML file : "+message["Identifier"]);\r
 160         }\r
 161 \r
 162         // remove this identityid from request list\r
 163         RemoveFromRequestList(identityid);\r
 164 \r
 165         return true;\r
 166 \r
 167 }\r
 168 \r
 169 const bool IntroductionPuzzleRequester::HandleGetFailed(FCPMessage &message)\r
 170 {\r
 171         SQLite3DB::Statement st;\r
 172         std::vector<std::string> idparts;\r
 173         long identityid;\r
 174         long index;\r
 175 \r
 176         StringFunctions::Split(message["Identifier"],"|",idparts);\r
 177         StringFunctions::Convert(idparts[1],identityid);\r
 178         StringFunctions::Convert(idparts[2],index);     \r
 179 \r
 180         // if this is a fatal error - insert index into database so we won't try to download this index again\r
 181         if(message["Fatal"]=="true")\r
 182         {\r
 183                 st=m_db->Prepare("INSERT INTO tblIntroductionPuzzleRequests(IdentityID,Day,RequestIndex,Found) VALUES(?,?,?,'false');");\r
 184                 st.Bind(0,identityid);\r
 185                 st.Bind(1,idparts[4]);\r
 186                 st.Bind(2,index);\r
 187                 st.Step();\r
 188                 st.Finalize();\r
 189 \r
 190                 m_log->error("IntroductionPuzzleRequester::HandleGetFailed fatal error requesting "+message["Identifier"]);\r
 191         }\r
 192 \r
 193         // remove this identityid from request list\r
 194         RemoveFromRequestList(identityid);\r
 195 \r
 196         return true;\r
 197 \r
 198 }\r
 199 \r
 200 const bool IntroductionPuzzleRequester::HandleMessage(FCPMessage &message)\r
 201 {\r
 202 \r
 203         if(message["Identifier"].find("IntroductionPuzzleRequester")==0)\r
 204         {\r
 205                 if(message.GetName()=="DataFound")\r
 206                 {\r
 207                         return true;\r
 208                 }\r
 209 \r
 210                 if(message.GetName()=="AllData")\r
 211                 {\r
 212                         return HandleAllData(message);\r
 213                 }\r
 214 \r
 215                 if(message.GetName()=="GetFailed")\r
 216                 {\r
 217                         return HandleGetFailed(message);\r
 218                 }\r
 219                 \r
 220                 if(message.GetName()=="IdentifierCollision")\r
 221                 {\r
 222                         // remove one of the ids from the requesting list\r
 223                         long identityid=0;\r
 224                         std::vector<std::string> idparts;\r
 225                         StringFunctions::Split(message["Identifier"],"|",idparts);\r
 226                         StringFunctions::Convert(idparts[1],identityid);\r
 227                         RemoveFromRequestList(identityid);\r
 228                         return true;\r
 229                 }\r
 230         }\r
 231 \r
 232         return false;\r
 233 }\r
 234 \r
 235 void IntroductionPuzzleRequester::Initialize()\r
 236 {\r
 237         m_maxrequests=0;\r
 238         Option::Instance()->GetInt("MaxIntroductionPuzzleRequests",m_maxrequests);\r
 239         if(m_maxrequests<1)\r
 240         {\r
 241                 m_maxrequests=1;\r
 242                 m_log->error("Option MaxIntroductionPuzzleRequests is currently set at less than 1.  It must be 1 or greater.");\r
 243         }\r
 244         if(m_maxrequests>100)\r
 245         {\r
 246                 m_log->warning("Option MaxIntroductionPuzzleRequests is currently set at more than 100.  This value might be incorrectly configured.");\r
 247         }\r
 248         Option::Instance()->Get("MessageBase",m_messagebase);\r
 249         m_tempdate=Poco::Timestamp();\r
 250 }\r
 251 \r
 252 void IntroductionPuzzleRequester::PopulateIDList()\r
 253 {\r
 254         Poco::DateTime now;\r
 255         int id;\r
 256         std::string limitnum="30";\r
 257 \r
 258         // if we don't have an identity that we haven't seen yet, then set limit to 5\r
 259         SQLite3DB::Statement st=m_db->Prepare("SELECT tblLocalIdentity.LocalIdentityID FROM tblLocalIdentity LEFT JOIN tblIdentity ON tblLocalIdentity.PublicKey=tblIdentity.PublicKey WHERE tblIdentity.IdentityID IS NULL;");\r
 260         st.Step();\r
 261         if(!st.RowReturned())\r
 262         {\r
 263                 limitnum="5";\r
 264         }\r
 265         st.Finalize();\r
 266 \r
 267         // select identities that aren't single use, are publishing a trust list, and have been seen today ( order by trust DESC and limit to limitnum )\r
 268         st=m_db->Prepare("SELECT IdentityID FROM tblIdentity WHERE PublishTrustList='true' AND PublicKey IS NOT NULL AND PublicKey <> '' AND SingleUse='false' AND (LocalTrustListTrust IS NULL OR LocalTrustListTrust>=(SELECT OptionValue FROM tblOption WHERE Option='MinLocalTrustListTrust')) AND LastSeen>='"+Poco::DateTimeFormatter::format(now,"%Y-%m-%d")+"' ORDER BY LocalMessageTrust DESC LIMIT 0,"+limitnum+";");\r
 269         st.Step();\r
 270 \r
 271         m_ids.clear();\r
 272 \r
 273         while(st.RowReturned())\r
 274         {\r
 275                 st.ResultInt(0,id);\r
 276                 m_ids[id]=false;\r
 277                 st.Step();\r
 278         }\r
 279 }\r
 280 \r
 281 void IntroductionPuzzleRequester::Process()\r
 282 {\r
 283         // max is the smaller of the config value or the total number of identities we will request from\r
 284         long max=m_maxrequests>m_ids.size() ? m_ids.size() : m_maxrequests;\r
 285 \r
 286         // try to keep up to max requests going\r
 287         if(m_requesting.size()<max)\r
 288         {\r
 289                 std::map<long,bool>::iterator i=m_ids.begin();\r
 290                 while(i!=m_ids.end() && (*i).second==true)\r
 291                 {\r
 292                         i++;\r
 293                 }\r
 294 \r
 295                 if(i!=m_ids.end())\r
 296                 {\r
 297                         StartRequest((*i).first);\r
 298                 }\r
 299                 else\r
 300                 {\r
 301                         // we requested from all ids in the list, repopulate the list\r
 302                         PopulateIDList();\r
 303                 }\r
 304         }\r
 305         // 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
 306         // this will recheck for ids every minute\r
 307         Poco::DateTime now;\r
 308         if(m_ids.size()==0 && m_tempdate<(now-Poco::Timespan(0,0,1,0,0)))\r
 309         {\r
 310                 PopulateIDList();\r
 311                 m_tempdate=now;\r
 312         }\r
 313 }\r
 314 \r
 315 void IntroductionPuzzleRequester::RegisterWithThread(FreenetMasterThread *thread)\r
 316 {\r
 317         thread->RegisterFCPConnected(this);\r
 318         thread->RegisterFCPMessageHandler(this);\r
 319         thread->RegisterPeriodicProcessor(this);\r
 320 }\r
 321 \r
 322 void IntroductionPuzzleRequester::RemoveFromRequestList(const long identityid)\r
 323 {\r
 324         std::vector<long>::iterator i=m_requesting.begin();\r
 325         while(i!=m_requesting.end() && (*i)!=identityid)\r
 326         {\r
 327                 i++;\r
 328         }\r
 329         if(i!=m_requesting.end())\r
 330         {\r
 331                 m_requesting.erase(i);\r
 332         }\r
 333 }\r
 334 \r
 335 void IntroductionPuzzleRequester::StartRequest(const long identityid)\r
 336 {\r
 337         Poco::DateTime now;\r
 338         FCPMessage message;\r
 339         std::string publickey;\r
 340         int index;\r
 341         std::string indexstr;\r
 342         std::string identityidstr;\r
 343 \r
 344         SQLite3DB::Statement st=m_db->Prepare("SELECT PublicKey FROM tblIdentity WHERE IdentityID=?;");\r
 345         st.Bind(0,identityid);\r
 346         st.Step();\r
 347 \r
 348         if(st.RowReturned())\r
 349         {\r
 350                 st.ResultText(0,publickey);\r
 351 \r
 352                 now=Poco::Timestamp();\r
 353 \r
 354                 SQLite3DB::Statement st2=m_db->Prepare("SELECT MAX(RequestIndex) FROM tblIntroductionPuzzleRequests WHERE Day=? AND IdentityID=?;");\r
 355                 st2.Bind(0,Poco::DateTimeFormatter::format(now,"%Y-%m-%d"));\r
 356                 st2.Bind(1,identityid);\r
 357                 st2.Step();\r
 358 \r
 359                 index=0;\r
 360                 if(st2.RowReturned())\r
 361                 {\r
 362                         if(st2.ResultNull(0)==false)\r
 363                         {\r
 364                                 st2.ResultInt(0,index);\r
 365                                 index++;\r
 366                         }\r
 367                 }\r
 368                 st2.Finalize();\r
 369 \r
 370                 StringFunctions::Convert(index,indexstr);\r
 371                 StringFunctions::Convert(identityid,identityidstr);\r
 372 \r
 373                 message.SetName("ClientGet");\r
 374                 message["URI"]=publickey+m_messagebase+"|"+Poco::DateTimeFormatter::format(now,"%Y-%m-%d")+"|IntroductionPuzzle|"+indexstr+".xml";\r
 375                 message["Identifier"]="IntroductionPuzzleRequester|"+identityidstr+"|"+indexstr+"|"+message["URI"];\r
 376                 message["ReturnType"]="direct";\r
 377                 message["MaxSize"]="1000000";           // 1 MB\r
 378 \r
 379                 m_fcp->SendMessage(message);\r
 380                 \r
 381                 m_requesting.push_back(identityid);\r
 382         }\r
 383 \r
 384         m_ids[identityid]=true;\r
 385 }\r