src/http/pages/showimagepage.cpp

   1 #include "../../../include/http/pages/showimagepage.h"\r
   2 \r
   3 #include <cstdio>\r
   4 \r
   5 #ifdef XMEM\r
   6         #include <xmem.h>\r
   7 #endif\r
   8 \r
   9 std::map<std::string,std::vector<char> > ShowImagePage::m_imagecache;\r
  10 \r
  11 void ShowImagePage::handleRequest(Poco::Net::HTTPServerRequest &request, Poco::Net::HTTPServerResponse &response)\r
  12 {\r
  13         m_log->trace("ShowImagePage::handleRequest from "+request.clientAddress().toString());\r
  14 \r
  15         std::map<std::string,std::string> queryvars;\r
  16         CreateQueryVarMap(request,queryvars);\r
  17 \r
  18         if(request.getVersion()==Poco::Net::HTTPRequest::HTTP_1_1)\r
  19         {\r
  20                 response.setChunkedTransferEncoding(true);\r
  21         }\r
  22 \r
  23         std::string content="";\r
  24         if(queryvars.find("image")!=queryvars.end())\r
  25         {\r
  26                 if(m_imagecache.find((*queryvars.find("image")).second)!=m_imagecache.end())\r
  27                 {\r
  28                         content+=std::string(m_imagecache[(*queryvars.find("image")).second].begin(),m_imagecache[(*queryvars.find("image")).second].end());\r
  29                 }\r
  30                 else\r
  31                 {\r
  32                         FILE *infile=fopen((*queryvars.find("image")).second.c_str(),"rb");\r
  33                         if(infile)\r
  34                         {\r
  35                                 fseek(infile,0,SEEK_END);\r
  36                                 long filelen=ftell(infile);\r
  37                                 fseek(infile,0,SEEK_SET);\r
  38 \r
  39                                 if(filelen>0)\r
  40                                 {\r
  41                                         std::vector<char> data(filelen,0);\r
  42                                         fread(&data[0],1,data.size(),infile);\r
  43                                         content+=std::string(data.begin(),data.end());\r
  44                                         m_imagecache[(*queryvars.find("image")).second]=data;\r
  45                                 }\r
  46 \r
  47                                 fclose(infile);\r
  48                         }\r
  49                 }\r
  50         }\r
  51 \r
  52         std::ostream &ostr = response.send();\r
  53         ostr << content;\r
  54 }\r
  55 \r
  56 const bool ShowImagePage::WillHandleURI(const std::string &uri)\r
  57 {\r
  58         if(uri.find("showimage.htm")!=std::string::npos)\r
  59         {\r
  60                 return true;\r
  61         }\r
  62         else\r
  63         {\r
  64                 return false;\r
  65         }\r
  66 }\r