far from being complete:

as mentioned on the devel list, this is a very first start of implementing the Wireshark update/version check feature

think of it as a backup / discussion base only - it's not even added to the Makefiles yet

svn path=/trunk/; revision=20415

1 files changed, 198 insertions, 0 deletions

diff --git a/nio-ie5.c b/nio-ie5.c
new file mode 100644
index 0000000000..9ad0b72553
--- /dev/null
+++ b/nio-ie5.c
@@ -0,0 +1,198 @@
+/*
+ * Copyright (c) 2000, Red Hat, Inc.
+ *
+ *     This program is free software; you can redistribute it and/or modify
+ *     it under the terms of the GNU General Public License as published by
+ *     the Free Software Foundation; either version 2 of the License, or
+ *     (at your option) any later version.
+ *
+ *     A copy of the GNU General Public License can be found at
+ *     http://www.gnu.org/
+ *
+ * Written by DJ Delorie <dj@cygnus.com>
+ * Modified by Ulf Lamping to meet Wireshark use
+ *
+ */
+
+/* The purpose of this file is to manage internet downloads using the
+   Internet Explorer version 5 DLLs.  To use this method, the user
+   must already have installed and configured IE5.  */
+
+#include "windows.h"

+#include <wininet.h>

+#include "nio-ie5.h"

+

+#include "glib.h"

+
+static HINTERNET internet = 0;

+

+
+
+netio_ie5_t * 
+netio_ie5_connect (char const *url)
+{
+  int resend = 0;
+  DWORD type, type_s;

+  netio_ie5_t * netio_ie5_conn;

+  DWORD dw_ret;

+  DWORD flags =

+ /*    INTERNET_FLAG_DONT_CACHE |*/

+    INTERNET_FLAG_KEEP_CONNECTION |

+ /*   INTERNET_FLAG_PRAGMA_NOCACHE |*/

+ /*   INTERNET_FLAG_RELOAD |*/

+    INTERNET_FLAG_EXISTING_CONNECT | INTERNET_FLAG_PASSIVE;

+

+  if (internet == 0)
+    {
+      HINSTANCE h = LoadLibrary ("wininet.dll");
+      if (!h)
+	{

+          /* XXX - how to return an error code? */
+          g_warning("Failed to load wininet.dll");
+	  return NULL;
+	}

+      /* pop-up dialup dialog box */

+      /* XXX - do we need the dialup box or simply don't attempt an update in this case? */

+      dw_ret = InternetAttemptConnect (0);
+      if (dw_ret != ERROR_SUCCESS) {

+        g_warning("InternetAttemptConnect failed: %u", dw_ret);

+        return NULL;

+      }
+      internet = InternetOpen ("Wireshark Update", INTERNET_OPEN_TYPE_PRECONFIG,
+			       NULL, NULL, 0);

+      if(internet == NULL) {

+        g_warning("InternetOpen failed %u", GetLastError());

+        return NULL;

+      }
+    }
+
+  netio_ie5_conn = g_malloc(sizeof(netio_ie5_t));

+

+  netio_ie5_conn->connection = InternetOpenUrl (internet, url, NULL, 0, flags, 0);
+
+try_again:
+

+#if 0
+	/* XXX - implement this option */
+  if (net_user && net_passwd)
+    {
+      InternetSetOption (connection, INTERNET_OPTION_USERNAME,
+			 net_user, strlen (net_user));
+      InternetSetOption (connection, INTERNET_OPTION_PASSWORD,
+			 net_passwd, strlen (net_passwd));
+    }

+#endif
+

+#if 0
+	/* XXX - implement this option */
+  if (net_proxy_user && net_proxy_passwd)
+    {
+      InternetSetOption (connection, INTERNET_OPTION_PROXY_USERNAME,
+			 net_proxy_user, strlen (net_proxy_user));
+      InternetSetOption (connection, INTERNET_OPTION_PROXY_PASSWORD,
+			 net_proxy_passwd, strlen (net_proxy_passwd));
+    }

+#endif
+
+  if (resend)
+    if (!HttpSendRequest (netio_ie5_conn->connection, 0, 0, 0, 0))
+      netio_ie5_conn->connection = 0;
+
+  if (!netio_ie5_conn->connection)
+    {

+      switch(GetLastError ()) {

+      case ERROR_INTERNET_EXTENDED_ERROR:

+          {
+	  char buf[2000];
+	  DWORD e, l = sizeof (buf);
+	  InternetGetLastResponseInfo (&e, buf, &l);
+	  MessageBox (0, buf, "Internet Error", 0);

+          }

+          break;
+      case ERROR_INTERNET_NAME_NOT_RESOLVED:

+          g_warning("Internet error: The servername could not be resolved");

+          break;

+      case ERROR_INTERNET_CANNOT_CONNECT:

+          g_warning("Internet error: Could not connect to the server");

+          break;

+      default:

+          g_warning("Internet error: %u", GetLastError ());

+      }

+      return NULL;
+    }
+
+  type_s = sizeof (type);
+  InternetQueryOption (netio_ie5_conn->connection, INTERNET_OPTION_HANDLE_TYPE,
+		       &type, &type_s);
+
+  switch (type)
+    {
+    case INTERNET_HANDLE_TYPE_HTTP_REQUEST:
+    case INTERNET_HANDLE_TYPE_CONNECT_HTTP:
+      type_s = sizeof (DWORD);
+      if (HttpQueryInfo (netio_ie5_conn->connection,
+			 HTTP_QUERY_STATUS_CODE | HTTP_QUERY_FLAG_NUMBER,
+			 &type, &type_s, NULL))
+	{
+	  if (type == 401)	/* authorization required */
+	    {
+	      netio_ie5_flush_io (netio_ie5_conn);

+              /* XXX - query net_user && net_passwd from user

+	      get_auth (NULL);*/
+	      resend = 1;
+	      goto try_again;
+	    }
+	  else if (type == 407)	/* proxy authorization required */
+	    {
+	      netio_ie5_flush_io (netio_ie5_conn);
+              /* XXX - query net_proxy_user && net_proxy_passwd from user

+	      get_proxy_auth (NULL);*/
+	      resend = 1;
+	      goto try_again;
+	    }
+	  else if (type >= 300)
+	    {
+              g_warning("Failed with HTTP response %u", type);

+              g_free(netio_ie5_conn);
+	      return NULL;
+	    }
+	}
+    }
+	
+	return netio_ie5_conn;
+}
+
+void
+netio_ie5_flush_io (netio_ie5_t * netio_e5_conn)
+{
+  DWORD actual = 0;
+  char buf[1024];
+  do
+    {
+      InternetReadFile (netio_e5_conn->connection, buf, 1024, &actual);
+    }
+  while (actual > 0);
+}
+
+void
+netio_ie5_disconnect (netio_ie5_t * netio_e5_conn)
+{
+  if (netio_e5_conn->connection)
+    InternetCloseHandle (netio_e5_conn->connection);

+  g_free(netio_e5_conn);
+}
+
+int
+netio_ie5_ok (netio_ie5_t * netio_e5_conn)
+{
+  return (netio_e5_conn->connection == NULL) ? 0 : 1;
+}
+
+int
+netio_ie5_read (netio_ie5_t * netio_e5_conn, char *buf, int nbytes)
+{
+  DWORD actual;
+  if (InternetReadFile (netio_e5_conn->connection, buf, nbytes, &actual))
+    return actual;
+  return -1;
+}