added cookie management and token retrieval

web/Makefile.m

@@ -1 +1 @@
-mkoctfile -v __curl__.cc
+mkoctfile -v cookie_manager.cc

web/cookie_manager.cc

@@ -0,0 +1,28 @@
+#include <octave/oct.h>
+#include <cstdio>
+#include "libcurl_wrapper.cc"
+
+DEFUN_DLD (cookie_manager, args, , "Some __cookie manager__ demo.")
+{
+  if (args.length () != 1)
+    print_usage ();
+
+  auto a = libcurl_wrapper::create();
+
+  // octave_value_list retval = mkstemp(s,"delete");
+  FILE* fid = fopen("temp.txt","w+");
+  // std::string oct_ver = OCTAVE_VERSION;
+
+  curl_version_info_data * data = curl_version_info(CURLVERSION_NOW);
+  const char *lib_ver = data->version;
+
+  a.setJAR("temp.txt");
+  a.setAGENT(lib_ver);
+  std::string wikiapi = "http://wiki.octave.org/wiki/api.php";
+  std::string url =  wikiapi +  "?action=query&meta=tokens&type=login&format=json";
+  a.setURL (url);
+
+  a.perform ();
+  fclose(fid);
+  return octave_value (a.getEFFECTIVE_URL ());
+}

web/libcurl_wrapper.cc

@@ -93,6 +93,21 @@ class libcurl_wrapper {
     curl_error (curl_easy_setopt (curl, CURLOPT_URL, url.c_str ()));
   }
 
+  //! COOKIES OPTIONS
+  //! sets the cookies to be written in the file specified
+  void setJAR (std::string filename) {
+    curl_error (curl_easy_setopt (curl, CURLOPT_COOKIEJAR, filename.c_str()));
+  }
+
+  //! USERAGENT OPTIONS
+  //! sets the cookies to be written in the file specified
+  void setAGENT (const char *lib_ver) {
+    std::string agent = "GNU Octave/" + std::string(OCTAVE_VERSION)         \
+    + " (https://www.gnu.org/software/octave/ ; help@octave.org) libcurl/"
+    + std::string(lib_ver); 
+    curl_error (curl_easy_setopt (curl, CURLOPT_USERAGENT, agent.c_str()));
+  }
+
   //! GETINFO
   //! get the last used URL
   std::string getEFFECTIVE_URL () {