Initial simple client

author: Alexander Larsson <alexl@redhat.com> 2010-04-03 23:06:28 +0200
committer: Alexander Larsson <alexl@redhat.com> 2010-04-03 23:06:28 +0200
commit: e2696dbbd6f561feb041fda71a8ca548d2d33558 (patch)
tree: c734eeb3f60f9c40ebdd18b328f1663988156351
2 files changed, 297 insertions, 0 deletions
diff --git a/client.html b/client.html
new file mode 100644
index 0000000..da5c7cf
--- /dev/null
+++ b/client.html
@@ -0,0 +1,61 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+<head>
+<meta http-equiv="Content-Type" content="text/html; charset=utf8" />
+<title>broadway</title>
+
+<script type="text/javascript">
+
+function createXHR()
+{
+  try { return new XMLHttpRequest(); } catch(e) {}
+  try { return new ActiveXObject("Msxml2.XMLHTTP.6.0"); } catch (e) {}
+  try { return new ActiveXObject("Msxml2.XMLHTTP.3.0"); } catch (e) {}
+  try { return new ActiveXObject("Msxml2.XMLHTTP"); } catch (e) {}
+  try { return new ActiveXObject("Microsoft.XMLHTTP"); } catch (e) {}
+ 
+  return null;
+}
+ 
+function sendRequest()
+{
+  document.getElementById("responseOutput").innerHTML = "";
+  var xhr = createXHR();
+  if (xhr) {
+    if (typeof xhr.multipart == 'undefined') {
+      alert("Sorry, this example only works in browsers that support multipart.");
+      return;
+    }
+ 
+    xhr.multipart = true;
+    xhr.open("GET", "ops", true);
+    xhr.onload = handleLoad;
+    xhr.send(null);
+  }
+}
+ 
+function handleLoad(event)
+{
+  document.getElementById("responseOutput").style.display = "";
+  document.getElementById("responseOutput").innerHTML += "<h3>text:</h3>" + event.target.responseText;
+}
+ 
+window.onload = function () 
+{ 
+  document.requestForm.requestButton.onclick = function () { sendRequest(); };
+};
+
+</script>
+
+ 
+</head>
+<body>
+ 
+<form action="#" name="requestForm">
+  <input type="button" name="requestButton" value="Send Request" />
+</form>
+<br />
+<div id="responseOutput" class="results" style="display:none;">&nbsp;</div>
+ 
+</body>
+</html>
diff --git a/daemon.c b/daemon.c
new file mode 100644
index 0000000..a2c5b96
--- /dev/null
+++ b/daemon.c
@@ -0,0 +1,236 @@
+/* Build with
+   gcc `pkg-config --cflags --libs gio-2.0` daemon.c -o daemon
+*/
+
+#include <gio/gio.h>
+#include <string.h>
+
+static int port = 8080;
+static char *root = NULL;
+static GOptionEntry cmd_entries[] = {
+  {"port", 'p', 0, G_OPTION_ARG_INT, &port,
+   "Local port to bind to", NULL},
+  {NULL}
+};
+
+static void
+send_error (GOutputStream *out,
+	    int error_code,
+	    const char *reason)
+{
+  char *res;
+
+  res = g_strdup_printf ("HTTP/1.0 %d %s\r\n\r\n"
+			 "<html><head><title>%d %s</title></head>"
+			 "<body>%s</body></html>",
+			 error_code, reason,
+			 error_code, reason,
+			 reason);
+  g_output_stream_write_all (out, res, strlen (res), NULL, NULL, NULL);
+  g_free (res);
+}
+
+static gboolean
+handle_read_file(const char *filename, GOutputStream *out)
+{
+  GFileInputStream *file_in;
+  char *path;
+  GFile *f;
+  GError *error;
+  GString *s;
+
+  path = g_build_filename (root, filename, NULL);
+  f = g_file_new_for_path (path);
+  g_free (path);
+
+  error = NULL;
+  file_in = g_file_read (f, NULL, &error);
+  if (file_in == NULL)
+    {
+      send_error (out, 404, error->message);
+      g_error_free (error);
+      g_object_unref (f);
+      return FALSE;
+    }
+
+  s = g_string_new ("HTTP/1.0 200 OK\r\n");
+  g_string_append_printf (s, "Content-Type: %s\r\n",
+			  "text/html");
+  g_string_append (s, "\r\n");
+
+  if (g_output_stream_write_all (out,
+				 s->str, s->len,
+				 NULL, NULL, NULL))
+    {
+      g_output_stream_splice (out,
+			      G_INPUT_STREAM (file_in),
+			      0, NULL, NULL);
+    }
+  g_string_free (s, TRUE);
+  g_object_unref (file_in);
+
+  return TRUE;
+}
+
+static gboolean
+send_draw_ops(GOutputStream *out)
+{
+  GZlibCompressor *compressor;
+  GOutputStream *cout;
+  char *boundary =
+    "--x\r\n"
+    "\r\n";
+  char *header;
+  char *data;
+  int i;
+
+  header =
+    "HTTP/1.1 200 OK\r\n"
+    "Content-type: multipart/x-mixed-replace;boundary=x\r\n"
+    "Content-Encoding: gzip\r\n"
+    "\r\n";
+  g_output_stream_write_all (out,
+			     header, strlen(header),
+			     NULL, NULL, NULL);
+
+  compressor = g_zlib_compressor_new (G_ZLIB_COMPRESSOR_FORMAT_GZIP, -1);
+  cout = g_converter_output_stream_new (out, G_CONVERTER (compressor));
+  
+  g_output_stream_write_all (cout,
+			     boundary, strlen (boundary),
+			     NULL, NULL, NULL);
+
+  i = 0;
+
+  while (1)
+    {
+      data = g_strdup_printf ("test %d", i++);
+
+      g_output_stream_write_all (cout,
+				 data, strlen(data),
+				 NULL, NULL, NULL);
+      g_free (data);
+      g_output_stream_write_all (cout,
+				 boundary, strlen (boundary),
+				 NULL, NULL, NULL);
+      g_output_stream_flush (cout, NULL, NULL);
+      
+      g_usleep(1 * 1000 * 1000);
+    }
+
+  return TRUE;
+}
+
+static gboolean
+handler (GThreadedSocketService *service,
+	 GSocketConnection      *connection,
+	 GSocketListener        *listener,
+	 gpointer                user_data)
+{
+  GOutputStream *out;
+  GInputStream *in;
+  GDataInputStream *data;
+  char *line, *escaped, *tmp, *query, *unescaped, *version;
+  gboolean res;
+
+  in = g_io_stream_get_input_stream (G_IO_STREAM (connection));
+  out = g_io_stream_get_output_stream (G_IO_STREAM (connection));
+
+  res = FALSE;
+  data = g_data_input_stream_new (in);
+
+  /* Be tolerant of input */
+  g_data_input_stream_set_newline_type (data, G_DATA_STREAM_NEWLINE_TYPE_ANY);
+
+  line = g_data_input_stream_read_line (data, NULL, NULL, NULL);
+
+  if (line == NULL)
+    {
+      send_error (out, 400, "Invalid request");
+      goto out;
+    }
+
+  if (!g_str_has_prefix (line, "GET "))
+    {
+      send_error (out, 501, "Only GET implemented");
+      goto out;
+    }
+
+  escaped = line + 4; /* Skip "GET " */
+
+  version = NULL;
+  tmp = strchr (escaped, ' ');
+  if (tmp != NULL)
+    {
+      *tmp = 0;
+      version = tmp + 1;
+    }
+
+  query = strchr (escaped, '?');
+  if (query != NULL)
+    *query++ = 0;
+
+  unescaped = g_uri_unescape_string (escaped, NULL);
+
+  if (strcmp(unescaped, "/client.html") == 0)
+    res = handle_read_file("client.html", out);
+  else if (strcmp(unescaped, "/ops") == 0)
+    {
+      res = send_draw_ops(out);
+    }
+  else
+    {
+      send_error (out, 404, "No such file");
+    }
+  g_free (unescaped);
+  g_free (line);
+
+ out:
+  g_object_unref (data);
+
+  return res;
+}
+
+int
+main (int argc, char *argv[])
+{
+  GSocketService *service;
+  GOptionContext *context;
+  GError *error = NULL;
+
+  g_type_init ();
+  g_thread_init (NULL);
+
+  context = g_option_context_new ("<http root dir> - Simple HTTP server");
+  g_option_context_add_main_entries (context, cmd_entries, NULL);
+  if (!g_option_context_parse (context, &argc, &argv, &error))
+    {
+      g_printerr ("%s: %s\n", argv[0], error->message);
+      return 1;
+    }
+
+  if (argc != 2)
+    {
+      g_printerr ("Root directory not specified\n");
+      return 1;
+    }
+
+  root = g_strdup (argv[1]);
+
+  service = g_threaded_socket_service_new (10);
+  if (!g_socket_listener_add_inet_port (G_SOCKET_LISTENER (service),
+					port,
+					NULL,
+					&error))
+    {
+      g_printerr ("%s: %s\n", argv[0], error->message);
+      return 1;
+    }
+
+  g_print ("Http server listening on port %d\n", port);
+
+  g_signal_connect (service, "run", G_CALLBACK (handler), NULL);
+
+  g_main_loop_run (g_main_loop_new (NULL, FALSE));
+  g_assert_not_reached ();
+}
author	Alexander Larsson <alexl@redhat.com>	2010-04-03 23:06:28 +0200
committer	Alexander Larsson <alexl@redhat.com>	2010-04-03 23:06:28 +0200
commit	e2696dbbd6f561feb041fda71a8ca548d2d33558 (patch)
tree	c734eeb3f60f9c40ebdd18b328f1663988156351