#! /bin/sh /usr/share/dpatch/dpatch-run
## 26_edit_only_writable.dpatch by Fabian Keil <fabiankeil@users.sf.net>
##
## All lines beginning with `## DP:' are a description of the patch.
## DP: Hide the edit button on http://p.p/show-status if action file can 
## DP: not be written by the privoxy user.
## DP: Extended version action.patch by Fabian Keil which shows a
## DP: message, that the file is write protected.
## DP: http://sf.net/tracker/?func=detail&atid=311118&aid=1564026&group_id=11118

@DPATCH@
diff -urNad privoxy~/cgisimple.c privoxy/cgisimple.c
--- privoxy~/cgisimple.c
+++ privoxy/cgisimple.c
@@ -248,6 +248,10 @@
 #include <string.h>
 #include <assert.h>
 
+#ifdef HAVE_ACCESS
+#include <unistd.h>
+#endif /* def HAVE_ACCESS */
+
 #ifdef _WIN32
 #define snprintf _snprintf
 #endif /* def _WIN32 */
@@ -1040,8 +1044,20 @@
 #ifdef FEATURE_CGI_EDIT_ACTIONS
          if (NULL == strstr(csp->actions_list[i]->filename, "standard.action") && NULL != csp->config->actions_file_short[i])
          {
-            snprintf(buf, 100, "&nbsp;&nbsp;<a href=\"/edit-actions-list?f=%s\">Edit</a>", csp->config->actions_file_short[i]);
-            if (!err) err = string_append(&s, buf);
+#ifdef HAVE_ACCESS
+            if (access(csp->config->actions_file[i], W_OK) == 0)
+            {
+#endif /* def HAVE_ACCESS */
+               snprintf(buf, 100, "&nbsp;&nbsp;<a href=\"/edit-actions-list?f=%s\">Edit</a>",
+                  csp->config->actions_file_short[i]);
+               if (!err) err = string_append(&s, buf);
+#ifdef HAVE_ACCESS
+            }
+            else
+            {
+               if (!err) err = string_append(&s, "&nbsp;&nbsp;<strong>File is write protected.</strong>");
+            }
+#endif /* def HAVE_ACCESS */
          }
 #endif
 
diff -urNad privoxy~/configure.in privoxy/configure.in
--- privoxy~/configure.in
+++ privoxy/configure.in
@@ -1129,7 +1129,7 @@
 AC_TYPE_SIGNAL
 dnl uncommenting does not work for swa. suse linux
 dnl AC_FUNC_STAT
-AC_CHECK_FUNCS([atexit getcwd gethostbyaddr gethostbyaddr_r gethostbyname gethostbyname_r inet_ntoa localtime_r memchr memmove memset random regcomp select setlocale socket strchr strdup strerror strftime strptime strstr strtoul timegm])
+AC_CHECK_FUNCS([access atexit getcwd gethostbyaddr gethostbyaddr_r gethostbyname gethostbyname_r inet_ntoa localtime_r memchr memmove memset random regcomp select setlocale socket strchr strdup strerror strftime strptime strstr strtoul timegm])
 
 
 dnl =================================================================