src/http/pages/showimagepage.cpp

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