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::Connection *fcp):IIndexRequester<long>(fcp)\r
  23 {\r
  24         Initialize();\r
  25 }\r
  26 \r
  27 const bool IntroductionPuzzleRequester::HandleAllData(FCPv2::Message &message)\r
  28 {\r
  29         Poco::DateTime now;\r
  30         SQLite3DB::Statement st;\r
  31         std::vector<std::string> idparts;\r
  32         long datalength;\r
  33         std::vector<char> data;\r
  34         IntroductionPuzzleXML xml;\r
  35         long identityid;\r
  36         long index;\r
  37         bool validmessage=true;\r
  38 \r
  39         StringFunctions::Split(message["Identifier"],"|",idparts);\r
  40         StringFunctions::Convert(message["DataLength"],datalength);\r
  41         StringFunctions::Convert(idparts[1],identityid);\r
  42         StringFunctions::Convert(idparts[2],index);\r
  43 \r
  44         // wait for all data to be received from connection\r
  45         m_fcp->WaitForBytes(1000,datalength);\r
  46 \r
  47         // if we got disconnected- return immediately\r
  48         if(m_fcp->IsConnected()==false)\r
  49         {\r
  50                 return false;\r
  51         }\r
  52 \r
  53         // receive the file\r
  54         m_fcp->Receive(data,datalength);\r
  55 \r
  56         // parse file into xml and update the database\r
  57         if(data.size()>0 && xml.ParseXML(std::string(data.begin(),data.end()))==true)\r
  58         {\r
  59 \r
  60                 // check if last part of UUID matches first part of public key of identity who inserted it\r
  61                 st=m_db->Prepare("SELECT PublicKey FROM tblIdentity WHERE IdentityID=?;");\r
  62                 st.Bind(0,identityid);\r
  63                 st.Step();\r
  64                 if(st.RowReturned())\r
  65                 {\r
  66                         std::vector<std::string> uuidparts;\r
  67                         std::vector<std::string> keyparts;\r
  68                         std::string keypart="";\r
  69                         std::string publickey="";\r
  70 \r
  71                         st.ResultText(0,publickey);\r
  72 \r
  73                         StringFunctions::SplitMultiple(publickey,"@,",keyparts);\r
  74                         StringFunctions::SplitMultiple(xml.GetUUID(),"@",uuidparts);\r
  75 \r
  76                         if(uuidparts.size()>1 && keyparts.size()>1)\r
  77                         {\r
  78                                 keypart=StringFunctions::Replace(StringFunctions::Replace(keyparts[1],"-",""),"~","");\r
  79                                 if(keypart!=uuidparts[1])\r
  80                                 {\r
  81                                         m_log->error("IntroductionPuzzleRequester::HandleAllData UUID in IntroductionPuzzle doesn't match public key of identity : "+message["Identifier"]);\r
  82                                         validmessage=false;\r
  83                                 }\r
  84                         }\r
  85                         else\r
  86                         {\r
  87                                 m_log->error("IntroductionPuzzleRequester::HandleAllData Error with identity's public key or UUID : "+message["Identifier"]);\r
  88                                 validmessage=false;\r
  89                         }\r
  90 \r
  91                 }\r
  92                 else\r
  93                 {\r
  94                         m_log->error("IntroductionPuzzleRequester::HandleAllData Error couldn't find identity : "+message["Identifier"]);\r
  95                         validmessage=false;\r
  96                 }\r
  97 \r
  98                 // we can only validate bitmaps for now\r
  99                 BitmapValidator val;\r
 100                 val.SetMax(200,200);\r
 101                 std::vector<unsigned char> puzzledata;\r
 102                 Base64::Decode(xml.GetPuzzleData(),puzzledata);\r
 103                 if(xml.GetMimeType()!="image/bmp" || val.Validate(puzzledata)==false)\r
 104                 {\r
 105                         m_log->error("IntroductionPuzzleRequester::HandleAllData received bad mime type and/or data for "+message["Identifier"]);\r
 106                         validmessage=false;\r
 107                 }\r
 108 \r
 109                 st=m_db->Prepare("INSERT INTO tblIntroductionPuzzleRequests(IdentityID,Day,RequestIndex,Found,UUID,Type,MimeType,PuzzleData) VALUES(?,?,?,?,?,?,?,?);");\r
 110                 st.Bind(0,identityid);\r
 111                 st.Bind(1,idparts[4]);\r
 112                 st.Bind(2,index);\r
 113                 if(validmessage)\r
 114                 {\r
 115                         st.Bind(3,"true");\r
 116                         st.Bind(4,xml.GetUUID());\r
 117                         st.Bind(5,xml.GetType());\r
 118                         st.Bind(6,xml.GetMimeType());\r
 119                         st.Bind(7,xml.GetPuzzleData());\r
 120                 }\r
 121                 else\r
 122                 {\r
 123                         st.Bind(3,"false");\r
 124                         st.Bind(4);\r
 125                         st.Bind(5);\r
 126                         st.Bind(6);\r
 127                         st.Bind(7);\r
 128                 }\r
 129                 st.Step();\r
 130                 st.Finalize();\r
 131 \r
 132                 m_log->debug("IntroductionPuzzleRequester::HandleAllData parsed IntroductionPuzzle XML file : "+message["Identifier"]);\r
 133         }\r
 134         else\r
 135         {\r
 136                 // bad data - mark index\r
 137                 st=m_db->Prepare("INSERT INTO tblIntroductionPuzzleRequests(IdentityID,Day,RequestIndex,Found) VALUES(?,?,?,'false');");\r
 138                 st.Bind(0,identityid);\r
 139                 st.Bind(1,idparts[4]);\r
 140                 st.Bind(2,index);\r
 141                 st.Step();\r
 142                 st.Finalize();\r
 143 \r
 144                 m_log->error("IntroductionPuzzleRequester::HandleAllData error parsing IntroductionPuzzle XML file : "+message["Identifier"]);\r
 145         }\r
 146 \r
 147         // remove this identityid from request list\r
 148         RemoveFromRequestList(identityid);\r
 149 \r
 150         return true;\r
 151 \r
 152 }\r
 153 \r
 154 const bool IntroductionPuzzleRequester::HandleGetFailed(FCPv2::Message &message)\r
 155 {\r
 156         SQLite3DB::Statement st;\r
 157         std::vector<std::string> idparts;\r
 158         long identityid;\r
 159         long index;\r
 160 \r
 161         StringFunctions::Split(message["Identifier"],"|",idparts);\r
 162         StringFunctions::Convert(idparts[1],identityid);\r
 163         StringFunctions::Convert(idparts[2],index);     \r
 164 \r
 165         // if this is a fatal error - insert index into database so we won't try to download this index again\r
 166         if(message["Fatal"]=="true")\r
 167         {\r
 168                 st=m_db->Prepare("INSERT INTO tblIntroductionPuzzleRequests(IdentityID,Day,RequestIndex,Found) VALUES(?,?,?,'false');");\r
 169                 st.Bind(0,identityid);\r
 170                 st.Bind(1,idparts[4]);\r
 171                 st.Bind(2,index);\r
 172                 st.Step();\r
 173                 st.Finalize();\r
 174 \r
 175                 m_log->error("IntroductionPuzzleRequester::HandleGetFailed fatal error requesting "+message["Identifier"]);\r
 176         }\r
 177 \r
 178         // remove this identityid from request list\r
 179         RemoveFromRequestList(identityid);\r
 180 \r
 181         return true;\r
 182 \r
 183 }\r
 184 \r
 185 void IntroductionPuzzleRequester::Initialize()\r
 186 {\r
 187         m_fcpuniquename="IntroductionPuzzleRequester";\r
 188         m_maxrequests=0;\r
 189         Option::Instance()->GetInt("MaxIntroductionPuzzleRequests",m_maxrequests);\r
 190         if(m_maxrequests<1)\r
 191         {\r
 192                 m_maxrequests=1;\r
 193                 m_log->error("Option MaxIntroductionPuzzleRequests is currently set at less than 1.  It must be 1 or greater.");\r
 194         }\r
 195         if(m_maxrequests>100)\r
 196         {\r
 197                 m_log->warning("Option MaxIntroductionPuzzleRequests is currently set at more than 100.  This value might be incorrectly configured.");\r
 198         }\r
 199 }\r
 200 \r
 201 void IntroductionPuzzleRequester::PopulateIDList()\r
 202 {\r
 203         Poco::DateTime now;\r
 204         int id;\r
 205         std::string limitnum="30";\r
 206 \r
 207         // if we don't have an identity that we haven't seen yet, then set limit to 5\r
 208         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
 209         st.Step();\r
 210         if(!st.RowReturned())\r
 211         {\r
 212                 limitnum="5";\r
 213         }\r
 214         st.Finalize();\r
 215 \r
 216         // 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
 217         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
 218         st.Step();\r
 219 \r
 220         m_ids.clear();\r
 221 \r
 222         while(st.RowReturned())\r
 223         {\r
 224                 st.ResultInt(0,id);\r
 225                 m_ids[id]=false;\r
 226                 st.Step();\r
 227         }\r
 228 }\r
 229 \r
 230 void IntroductionPuzzleRequester::StartRequest(const long &identityid)\r
 231 {\r
 232         Poco::DateTime now;\r
 233         FCPv2::Message message;\r
 234         std::string publickey;\r
 235         int index;\r
 236         std::string indexstr;\r
 237         std::string identityidstr;\r
 238 \r
 239         SQLite3DB::Statement st=m_db->Prepare("SELECT PublicKey FROM tblIdentity WHERE IdentityID=?;");\r
 240         st.Bind(0,identityid);\r
 241         st.Step();\r
 242 \r
 243         if(st.RowReturned())\r
 244         {\r
 245                 st.ResultText(0,publickey);\r
 246 \r
 247                 now=Poco::Timestamp();\r
 248 \r
 249                 SQLite3DB::Statement st2=m_db->Prepare("SELECT MAX(RequestIndex) FROM tblIntroductionPuzzleRequests WHERE Day=? AND IdentityID=?;");\r
 250                 st2.Bind(0,Poco::DateTimeFormatter::format(now,"%Y-%m-%d"));\r
 251                 st2.Bind(1,identityid);\r
 252                 st2.Step();\r
 253 \r
 254                 index=0;\r
 255                 if(st2.RowReturned())\r
 256                 {\r
 257                         if(st2.ResultNull(0)==false)\r
 258                         {\r
 259                                 st2.ResultInt(0,index);\r
 260                                 index++;\r
 261                         }\r
 262                 }\r
 263                 st2.Finalize();\r
 264 \r
 265                 StringFunctions::Convert(index,indexstr);\r
 266                 StringFunctions::Convert(identityid,identityidstr);\r
 267 \r
 268                 message.SetName("ClientGet");\r
 269                 message["URI"]=publickey+m_messagebase+"|"+Poco::DateTimeFormatter::format(now,"%Y-%m-%d")+"|IntroductionPuzzle|"+indexstr+".xml";\r
 270                 message["Identifier"]=m_fcpuniquename+"|"+identityidstr+"|"+indexstr+"|"+message["URI"];\r
 271                 message["ReturnType"]="direct";\r
 272                 message["MaxSize"]="1000000";           // 1 MB\r
 273 \r
 274                 m_fcp->Send(message);\r
 275                 \r
 276                 m_requesting.push_back(identityid);\r
 277         }\r
 278 \r
 279         m_ids[identityid]=true;\r
 280 }\r