From 35c3c3cd2df2f5d40bc9a2101e97d534b4b6f9b5 Mon Sep 17 00:00:00 2001
From: Alexander Bruy <alexander.bruy@gmail.com>
Date: Thu, 11 Apr 2013 15:50:53 +0400
Subject: [PATCH] [sextante] catch IO error when user tried to save file in
 system directory (fix #7259)

---
 .../plugins/sextante/r/EditRScriptDialog.py   | 20 ++++++++++++-------
 .../sextante/script/EditScriptDialog.py       | 17 ++++++++++++----
 2 files changed, 26 insertions(+), 11 deletions(-)

diff --git a/python/plugins/sextante/r/EditRScriptDialog.py b/python/plugins/sextante/r/EditRScriptDialog.py
index 1ef1bbdfdaec..928342b14415 100644
--- a/python/plugins/sextante/r/EditRScriptDialog.py
+++ b/python/plugins/sextante/r/EditRScriptDialog.py
@@ -26,6 +26,8 @@
 # This will get replaced with a git SHA1 when you do a git archive
 __revision__ = '$Format:%H$'
 
+import sys
+
 from PyQt4 import QtCore, QtGui
 from PyQt4.QtCore import *
 from PyQt4.QtGui import *
@@ -79,7 +81,6 @@ def setupUi(self):
         self.setLayout(layout)
         QtCore.QMetaObject.connectSlotsByName(self)
 
-
     def editHelp(self):
         if self.alg is None:
             alg = RAlgorithm(None, unicode(self.text.toPlainText()))
@@ -92,7 +93,6 @@ def editHelp(self):
         if self.alg is None and dlg.descriptions:
             self.help = dlg.descriptions
 
-
     def runAlgorithm(self):
         alg = RAlgorithm(None, unicode(self.text.toPlainText()))
         alg.provider = Providers.providers['r']
@@ -110,7 +110,6 @@ def runAlgorithm(self):
                 pass
             canvas.setMapTool(prevMapTool)
 
-
     def saveAlgorithm(self):
         if self.filename is None:
             self.filename = str(QtGui.QFileDialog.getSaveFileName(self, "Save Script", RUtils.RScriptsFolder(), "SEXTANTE R script (*.rsx)"))
@@ -121,9 +120,16 @@ def saveAlgorithm(self):
             text = str(self.text.toPlainText())
             if self.alg is not None:
                 self.alg.script = text
-            fout = open(self.filename, "w")
-            fout.write(text)
-            fout.close()
+            try:
+                fout = open(self.filename, "w")
+                fout.write(text)
+                fout.close()
+            except IOError:
+                QMessageBox.warning(self,
+                                    self.tr("I/O error"),
+                                    self.tr("Unable to save edits. Reason:\n %1").arg(unicode(sys.exc_info()[1]))
+                                   )
+                return
             self.update = True
             #if help strings were defined before saving the model for the first time, we do it here
             if self.help:
@@ -137,4 +143,4 @@ def saveAlgorithm(self):
 
     def cancelPressed(self):
         #self.update = False
-        self.close()
\ No newline at end of file
+        self.close()
diff --git a/python/plugins/sextante/script/EditScriptDialog.py b/python/plugins/sextante/script/EditScriptDialog.py
index 7cf5c8e5ef4b..f123ad0a402b 100644
--- a/python/plugins/sextante/script/EditScriptDialog.py
+++ b/python/plugins/sextante/script/EditScriptDialog.py
@@ -23,6 +23,8 @@
 # This will get replaced with a git SHA1 when you do a git archive
 __revision__ = '$Format:%H$'
 
+import sys
+
 from PyQt4 import QtCore, QtGui
 from PyQt4.QtCore import *
 from PyQt4.QtGui import *
@@ -96,9 +98,16 @@ def saveAlgorithm(self):
             text = str(self.text.toPlainText())
             if self.alg is not None:
                 self.alg.script = text
-            fout = open(self.filename, "w")
-            fout.write(text)
-            fout.close()
+            try:
+                fout = open(self.filename, "w")
+                fout.write(text)
+                fout.close()
+            except:
+                QMessageBox.warning(self,
+                                    self.tr("I/O error"),
+                                    self.tr("Unable to save edits. Reason:\n %1").arg(unicode(sys.exc_info()[1]))
+                                   )
+                return
             self.update = True
             #if help strings were defined before saving the model for the first time, we do it here
             if self.help:
@@ -112,4 +121,4 @@ def saveAlgorithm(self):
 
     def cancelPressed(self):
         #self.update = False
-        self.close()
\ No newline at end of file
+        self.close()