From: Mikko Rasa <tdb@tdb.fi>
Date: Wed, 10 Aug 2011 19:31:42 +0000 (+0300)
Subject: Add an example of Http::Server usage
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=b6799df1af5dd20ecd7cfc0e36b54b8f12361e41;p=libs%2Fnet.git

Add an example of Http::Server usage
---

diff --git a/.gitignore b/.gitignore
index d16c915..8c908ea 100644
--- a/.gitignore
+++ b/.gitignore
@@ -5,6 +5,7 @@
 /httpget
 /libmspnet.a
 /libmspnet.so
+/minihttpd
 /mspnet.pc
 /netcat
 /pc-32-windows
diff --git a/Build b/Build
index 47032c4..01d3a84 100644
--- a/Build
+++ b/Build
@@ -45,4 +45,13 @@ package "mspnet"
 			library "mspnet";
 		};
 	};
+
+	program "minihttpd"
+	{
+		source "examples/minihttpd.cpp";
+		build_info
+		{
+			library "mspnet";
+		};
+	};
 };
diff --git a/examples/minihttpd.cpp b/examples/minihttpd.cpp
new file mode 100644
index 0000000..b59b0f9
--- /dev/null
+++ b/examples/minihttpd.cpp
@@ -0,0 +1,92 @@
+#include <msp/core/application.h>
+#include <msp/debug/demangle.h>
+#include <msp/fs/dir.h>
+#include <msp/fs/path.h>
+#include <msp/fs/utils.h>
+#include <msp/http/request.h>
+#include <msp/http/response.h>
+#include <msp/http/server.h>
+#include <msp/io/eventdispatcher.h>
+#include <msp/io/file.h>
+#include <msp/io/print.h>
+#include <msp/strings/utils.h>
+
+using namespace std;
+using namespace Msp;
+
+class MiniHttpd: public RegisteredApplication<MiniHttpd>
+{
+private:
+	FS::Path root;
+	Http::Server server;
+	IO::EventDispatcher event_disp;
+
+public:
+	MiniHttpd(int, char **);
+
+private:
+	virtual void tick();
+
+	void request(const Http::Request &, Http::Response &);
+};
+
+MiniHttpd::MiniHttpd(int argc, char **argv):
+	root(FS::getcwd()),
+	server(8080)
+{
+	if(argc>1)
+		root /= argv[1];
+	server.signal_request.connect(sigc::mem_fun(this, &MiniHttpd::request));
+	server.use_event_dispatcher(&event_disp);
+}
+
+void MiniHttpd::tick()
+{
+	event_disp.tick();
+}
+
+void MiniHttpd::request(const Http::Request &req, Http::Response &resp)
+{
+	IO::print("%s requests \"%s\"\n", req.get_header("-Client-Host"), c_escape(req.get_path()));
+
+	FS::Path path = root/req.get_path().substr(1);
+	if(FS::descendant_depth(path, root)<0)
+	{
+		resp = Http::Response(Http::FORBIDDEN);
+		resp.add_content("You do not have permission to access the requested resource\n");
+		return;
+	}
+
+	try
+	{
+		IO::BufferedFile file(path.str());
+		resp = Http::Response(Http::OK);
+		if(FS::extpart(path.str())==".html")
+			resp.set_header("Content-Type", "text/html");
+		char buf[1024];
+		while(1)
+		{
+			unsigned len = file.read(buf, sizeof(buf));
+			if(!len)
+				break;
+			resp.add_content(string(buf, len));
+		}
+	}
+	catch(const IO::file_not_found &)
+	{
+		resp = Http::Response(Http::NOT_FOUND);
+		resp.add_content("The requested resource was not found\n");
+	}
+	catch(const exception &e)
+	{
+		resp = Http::Response(Http::INTERNAL_ERROR);
+		resp.add_content(format("An exception occurred while trying to retrieve %s:\n", req.get_path()));
+		resp.add_content(format("  type:   %s\n", Debug::demangle(typeid(e).name())));
+		resp.add_content(format("  what(): %s\n", e.what()));
+	}
+	catch(...)
+	{
+		resp = Http::Response(Http::INTERNAL_ERROR);
+		resp.add_content("Something horrible happened and I can't even tell what it was!\n");
+	}
+}