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