examples/httpget.cpp

   1 #include <msp/core/application.h>
   2 #include <msp/core/getopt.h>
   3 #include <msp/debug/demangle.h>
   4 #include <msp/http/client.h>
   5 #include <msp/http/request.h>
   6 #include <msp/http/response.h>
   7 #include <msp/io/print.h>
   8
   9 using namespace std;
  10 using namespace Msp;
  11
  12 class HttpGet: public RegisteredApplication<HttpGet>
  13 {
  14 private:
  15         bool verbose;
  16         string url;
  17
  18 public:
  19         HttpGet(int, char **);
  20
  21         virtual int main();
  22 private:
  23         void socket_error(const exception &);
  24 };
  25
  26 HttpGet::HttpGet(int argc, char **argv):
  27         verbose(false)
  28 {
  29         GetOpt getopt;
  30         getopt.add_option('v', "verbose", verbose, GetOpt::NO_ARG);
  31         getopt(argc, argv);
  32
  33         const vector<string> &args = getopt.get_args();
  34         if(args.empty())
  35                 throw usage_error("No URL");
  36
  37         url = args.front();
  38 }
  39
  40 int HttpGet::main()
  41 {
  42         Http::Client client;
  43         client.signal_socket_error.connect(sigc::mem_fun(this, &HttpGet::socket_error));
  44
  45         if(verbose)
  46         {
  47                 IO::print("=== Sending request ===\n");
  48                 client.start_request(Http::Request::from_url(url));
  49                 IO::print(client.get_request()->str());
  50                 client.wait_response();
  51                 const Http::Response *response = client.get_response();
  52                 if(response)
  53                 {
  54                         IO::print("=== Got response ===\n");
  55                         IO::print(response->str());
  56                 }
  57         }
  58         else
  59         {
  60                 const Http::Response *response = client.get_url(url);
  61                 if(response)
  62                         IO::print(response->get_content());
  63         }
  64
  65         return 1;
  66 }
  67
  68 void HttpGet::socket_error(const exception &e)
  69 {
  70         IO::print("=== Error ===\n");
  71         IO::print("%s\n", Debug::demangle(typeid(e).name()));
  72         IO::print("%s\n", e.what());
  73 }