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