License change: Apache License, Version 2.0.

[thirdparty/cups.git] / cups / getdevices.c

diff --git a/cups/getdevices.c b/cups/getdevices.c
index 76122ceadd7e8c2cfe4e0df7fc68d331e3429f19..e0ac9b5ccd50186756a3b469b910d2ce130c2c55 100644 (file)
--- a/cups/getdevices.c
+++ b/cups/getdevices.c
@@ -1,29 +1,17 @@
 /*
- * "$Id$"
+ * cupsGetDevices implementation for CUPS.
  *
- *   cupsGetDevices implementation for the Common UNIX Printing System (CUPS).
+ * Copyright 2008-2016 by Apple Inc.
  *
- *   Copyright 2008-2010 by Apple Inc.
- *
- *   These coded instructions, statements, and computer programs are the
- *   property of Apple Inc. and are protected by Federal copyright
- *   law.  Distribution and use rights are outlined in the file "LICENSE.txt"
- *   which should have been included with this file.  If this file is
- *   file is missing or damaged, see the license at "http://www.cups.org/".
- *
- *   This file is subject to the Apple OS-Developed Software exception.
- *
- * Contents:
- *
- *   cupsGetDevices() - Get available printer devices.
+ * Licensed under Apache License v2.0.  See the file "LICENSE" for more information.
  */
 
 /*
  * Include necessary headers...
  */
 
-#include "globals.h"
-#include "debug.h"
+#include "cups-private.h"
+#include "adminutil.h"
 
 
 /*
@@ -35,7 +23,7 @@
  * parameters provide comma-delimited lists of backends to include or omit from
  * the request respectively.
  *
- * @since CUPS 1.4/Mac OS X 10.6@
+ * @since CUPS 1.4/macOS 10.6@
  */
 
 ipp_status_t                           /* O - Request status - @code IPP_OK@ on success. */
@@ -66,25 +54,22 @@ cupsGetDevices(
   * Range check input...
   */
 
-  DEBUG_printf(("cupsGetDevices(http=%p, timeout=%d, include_schemes=\"%s\", "
-                "exclude_schemes=\"%s\", callback=%p, user_data=%p)", http,
-               timeout, include_schemes, exclude_schemes, callback,
-               user_data));
+  DEBUG_printf(("cupsGetDevices(http=%p, timeout=%d, include_schemes=\"%s\", exclude_schemes=\"%s\", callback=%p, user_data=%p)", (void *)http, timeout, include_schemes, exclude_schemes, (void *)callback, user_data));
 
   if (!callback)
-    return (IPP_INTERNAL_ERROR);
+    return (IPP_STATUS_ERROR_INTERNAL);
 
   if (!http)
     http = _cupsConnect();
 
   if (!http)
-    return (IPP_SERVICE_UNAVAILABLE);
+    return (IPP_STATUS_ERROR_SERVICE_UNAVAILABLE);
 
  /*
   * Create a CUPS-Get-Devices request...
   */
 
-  request = ippNewRequest(CUPS_GET_DEVICES);
+  request = ippNewRequest(IPP_OP_CUPS_GET_DEVICES);
 
   if (timeout > 0)
     ippAddInteger(request, IPP_TAG_OPERATION, IPP_TAG_INTEGER, "timeout",
@@ -107,21 +92,62 @@ cupsGetDevices(
   }
 
  /*
-  * Send the request...
+  * Send the request and do any necessary authentication...
   */
 
-  DEBUG_puts("2cupsGetDevices: Sending request...");
-  status = cupsSendRequest(http, request, "/", ippLength(request));
+  do
+  {
+    DEBUG_puts("2cupsGetDevices: Sending request...");
+    status = cupsSendRequest(http, request, "/", ippLength(request));
+
+    DEBUG_puts("2cupsGetDevices: Waiting for response status...");
+    while (status == HTTP_STATUS_CONTINUE)
+      status = httpUpdate(http);
+
+    if (status != HTTP_STATUS_OK)
+    {
+      httpFlush(http);
+
+      if (status == HTTP_STATUS_UNAUTHORIZED)
+      {
+       /*
+       * See if we can do authentication...
+       */
+
+       DEBUG_puts("2cupsGetDevices: Need authorization...");
+
+       if (!cupsDoAuthentication(http, "POST", "/"))
+         httpReconnect2(http, 30000, NULL);
+       else
+       {
+         status = HTTP_STATUS_CUPS_AUTHORIZATION_CANCELED;
+         break;
+       }
+      }
+
+#ifdef HAVE_SSL
+      else if (status == HTTP_STATUS_UPGRADE_REQUIRED)
+      {
+       /*
+       * Force a reconnect with encryption...
+       */
 
-  DEBUG_puts("2cupsGetDevices: Waiting for response status...");
-  while (status == HTTP_CONTINUE)
-    status = httpUpdate(http);
+       DEBUG_puts("2cupsGetDevices: Need encryption...");
+
+       if (!httpReconnect2(http, 30000, NULL))
+         httpEncryption(http, HTTP_ENCRYPTION_REQUIRED);
+      }
+#endif /* HAVE_SSL */
+    }
+  }
+  while (status == HTTP_STATUS_UNAUTHORIZED ||
+         status == HTTP_STATUS_UPGRADE_REQUIRED);
 
   DEBUG_printf(("2cupsGetDevices: status=%d", status));
 
   ippDelete(request);
 
-  if (status != HTTP_OK)
+  if (status != HTTP_STATUS_OK)
   {
     _cupsSetHTTPError(status);
     return (cupsLastError());
@@ -147,11 +173,10 @@ cupsGetDevices(
 
   do
   {
-    if ((state = ippRead(http, response)) == IPP_ERROR)
+    if ((state = ippRead(http, response)) == IPP_STATE_ERROR)
       break;
 
-    DEBUG_printf(("2cupsGetDevices: state=%d, response->last=%p", state,
-                  response->last));
+    DEBUG_printf(("2cupsGetDevices: state=%d, response->last=%p", state, (void *)response->last));
 
     if (!response->attrs)
       continue;
@@ -201,10 +226,9 @@ cupsGetDevices(
         device_uri = attr->values[0].string.text;
     }
   }
-  while (state != IPP_DATA);
+  while (state != IPP_STATE_DATA);
 
-  DEBUG_printf(("2cupsGetDevices: state=%d, response->last=%p", state,
-               response->last));
+  DEBUG_printf(("2cupsGetDevices: state=%d, response->last=%p", state, (void *)response->last));
 
   if (device_class && device_id && device_info && device_make_and_model &&
       device_uri)
@@ -218,8 +242,8 @@ cupsGetDevices(
   httpBlocking(http, blocking);
   httpFlush(http);
 
-  if (status == HTTP_ERROR)
-    _cupsSetError(IPP_ERROR, NULL, 0);
+  if (status == HTTP_STATUS_ERROR)
+    _cupsSetError(IPP_STATUS_ERROR_INTERNAL, strerror(http->error), 0);
   else
   {
     attr = ippFindAttribute(response, "status-message", IPP_TAG_TEXT);
@@ -237,8 +261,3 @@ cupsGetDevices(
 
   return (cupsLastError());
 }
-
-
-/*
- * End of "$Id$".
- */