[Boost-commit] svn:boost r43224 - in sandbox/SOC/2007/cgi/branches/acceptor_work/libs/cgi/example/fcgi: . echo

From: lists.drrngrvy_at_[hidden]
Date: 2008-02-11 14:44:28

Author: drrngrvy
Date: 2008-02-11 14:44:28 EST (Mon, 11 Feb 2008)
New Revision: 43224
URL: http://svn.boost.org/trac/boost/changeset/43224

Log:
Adding FastCGI echo example.
Added:
   sandbox/SOC/2007/cgi/branches/acceptor_work/libs/cgi/example/fcgi/
   sandbox/SOC/2007/cgi/branches/acceptor_work/libs/cgi/example/fcgi/README   (contents, props changed)
   sandbox/SOC/2007/cgi/branches/acceptor_work/libs/cgi/example/fcgi/echo/
   sandbox/SOC/2007/cgi/branches/acceptor_work/libs/cgi/example/fcgi/echo/Jamfile.v2   (contents, props changed)
   sandbox/SOC/2007/cgi/branches/acceptor_work/libs/cgi/example/fcgi/echo/main.cpp   (contents, props changed)

Added: sandbox/SOC/2007/cgi/branches/acceptor_work/libs/cgi/example/fcgi/README
==============================================================================
--- (empty file)
+++ sandbox/SOC/2007/cgi/branches/acceptor_work/libs/cgi/example/fcgi/README	2008-02-11 14:44:28 EST (Mon, 11 Feb 2008)
@@ -0,0 +1,3 @@
+Note that at the moment linux is probably the only platform that FastCGI examples will work on (behind apache or apache2 with mod_fastcgi/mod_fcgid).
+
+This situation is temporary, but for now I'm not sure how much.

Added: sandbox/SOC/2007/cgi/branches/acceptor_work/libs/cgi/example/fcgi/echo/Jamfile.v2
==============================================================================
--- (empty file)
+++ sandbox/SOC/2007/cgi/branches/acceptor_work/libs/cgi/example/fcgi/echo/Jamfile.v2	2008-02-11 14:44:28 EST (Mon, 11 Feb 2008)
@@ -0,0 +1,14 @@
+
+project cgi.examples.fcgi.echo ;
+
+exe fcgi_echo : main.cpp ;
+
+install install
+  :
+    fcgi_echo
+  :
+    <location>$(fcgi-bin)
+  ;
+
+explicit install ;
+

Added: sandbox/SOC/2007/cgi/branches/acceptor_work/libs/cgi/example/fcgi/echo/main.cpp
==============================================================================
--- (empty file)
+++ sandbox/SOC/2007/cgi/branches/acceptor_work/libs/cgi/example/fcgi/echo/main.cpp	2008-02-11 14:44:28 EST (Mon, 11 Feb 2008)
@@ -0,0 +1,119 @@
+#include <fstream>
+#include <boost/date_time/posix_time/posix_time.hpp>
+#include <boost/program_options/environment_iterator.hpp>
+
+#include <boost/cgi/fcgi.hpp>
+#include <boost/cgi/return.hpp>
+
+using namespace std;
+using namespace boost::fcgi;
+
+// This is a file to put internal logging info into
+#define LOG_FILE "/var/www/log/fcgi_echo.txt"
+
+// This function writes the title and map contents to the ostream in an
+// HTML-encoded format (to make them easier on the eye).
+template<typename Map, typename OStream>
+void format_map(Map& m, OStream& os, const std::string& title)
+{
+  os<< "<h2>" << title << "</h2>";
+  if (m.empty()) os<< "NONE<br />";
+  for (typename Map::const_iterator i = m.begin(), end = m.end()
+      ; i != end; ++i)
+  {
+    os<< "<b>" << i->first << "</b> = <i>" << i->second << "</i><br />";
+  }
+}
+
+template<typename Service, typename Acceptor, typename LogStream>
+int handle_request(Service& s, Acceptor& a, LogStream& of)
+{
+  // First we construct a `request` object.
+  request req(s); // This is in a protocol-specific state at the moment.
+
+  of<< "Constructed request" << endl;
+  boost::system::error_code ec;
+  
+  // The program blocks here until a request arrives.
+  a.accept(req, ec);
+
+  of<< "Called accept" << endl;
+  // Result should be "Success".
+  of<< "Accept had result: " << ec.message() << endl;
+
+  // Load in the request data so we can access it easily.
+  req.load(ec, true); // The 'true' means read and parse STDIN (ie. POST) data.
+
+  // Construct a `response` object (makes writing/sending responses easier).
+  response resp;
+
+  // Responses in CGI programs require at least a 'Content-type' header. The
+  // library provides helpers for several common headers:
+  resp<< content_type("text/html")
+  // You can also stream text to a response object. 
+      << "Hello there, universe!<p />";
+
+  // Use the function defined above to show some of the request data.
+  format_map(req.env(), resp, "Environment Variables");
+  format_map(req.GET(), resp, "GET Variables");
+  format_map(req.cookie(), resp, "Cookie Variables");
+
+  // This funky macro finishes up:
+  return_(resp, req, 0);
+  // It is equivalent to the below, where the third argument is represented by
+  // `program_status`:
+  //
+  // resp.send(req.client());
+  // req.close(resp.status(), program_status);
+  // return program_status;
+  //
+  // Note: in this case `program_status == 0`.
+}
+
+int main()
+{
+try {
+
+  ofstream of(LOG_FILE);
+  if (!of)
+  {
+    std::cerr<< "Couldn't open file: \"" LOG_FILE "\"." << endl;
+    return 1;
+  }
+
+  of<< boost::posix_time::second_clock::local_time() << endl;
+  of<< "Going to start acceptor" << endl;
+
+  // Make a `service` (more about this in other examples).
+  service s;
+  // Make an `acceptor` for accepting requests through.
+  acceptor a(s);
+
+  // This next line may become void in the future.
+  a.assign(boost::asio::ip::tcp::v4(), 0);
+  of<< "[a] Assigned." << endl;
+
+  // After the initial setup, we can enter a loop to handle one request at a
+  // time until there's an error of some sort.
+  int ret(0);
+  for (;;)
+  {
+    ret = handle_request(s, a, of);
+    of<< "handle_requests() returned: " << ret << endl;
+    if (ret)
+      break;
+  }
+  
+  return ret;
+
+}catch(boost::system::system_error& se){
+  cerr<< "[hw] System error: " << se.what() << endl;
+  return 1313;
+}catch(exception& e){
+  cerr<< "[hw] Exception: " << e.what() << endl;
+  return 666;
+}catch(...){
+  cerr<< "[hw] Uncaught exception!" << endl;
+  return 667;
+}
+}