Please do not reply to this email- if you want to comment on the bug, go to the URL shown below and enter your comments there.
Changed by [EMAIL PROTECTED] http://bugzilla.ximian.com/show_bug.cgi?id=80141 --- shadow/80141 2006-12-04 01:48:40.000000000 -0500 +++ shadow/80141.tmp.13508 2006-12-04 01:48:40.000000000 -0500 @@ -0,0 +1,156 @@ +Bug#: 80141 +Product: Mono: Class Libraries +Version: 1.0 +OS: GNU/Linux [Other] +OS Details: Ubuntu 6.10 Edgy +Status: NEW +Resolution: +Severity: +Priority: Major +Component: CORLIB +AssignedTo: [EMAIL PROTECTED] +ReportedBy: [EMAIL PROTECTED] +QAContact: [EMAIL PROTECTED] +TargetMilestone: --- +URL: +Cc: +Summary: Linux: Incorrect RegistryKey.SetValue() Serialization + +Description of Problem: + +Microsoft.Win32.RegistryKey.SetValue() incorrectly writes .XML registry +values in a Linux environment. More importantly, "&" (Ampersands) are not +escaped as "&". This problem does not occur in a Microsoft Windows +environment. + +Steps to reproduce the problem: + +1. Create an application that accesses a registry key, and stores a value +on a Linux environment. + +This is a working example I created to model the problem I'm having with my +actual code: + +/**********************************************************/ +using System; +using Microsoft.Win32; + +namespace RegTest +{ + class MainClass + { + public static void Main(string[] args) + { + // On the second execution of this program, + // this line will cause a WARNING. (See below for stack trace) + RegistryKey regkey = +Registry.LocalMachine.CreateSubKey("SOFTWARE\\regtest"); + + // This shows what the current value is + Console.WriteLine("Current Value: " + regkey.GetValue("URL")); + + // Enter a value containing at least one "&" + Console.WriteLine("Enter new URL:" ); + regkey.SetValue( "URL", Console.ReadLine() ); + + // This shows that once set, the value is OK. + Console.WriteLine("Key Value: " + regkey.GetValue("URL")); + } + } +} +/**********************************************************/ + +2. Run this application. Since the key did not exist this time, nothing +should be displayed in the "Current Value: " line. Next, enter a value, +such as "http://google.com/?arg=val&arg2=val2";. The value is displayed back +on the screen using the RegistryKey object and the application terminates. + +3. Run the application again. An error will be displayed on the screen when +accessing the key. + + +Actual Results: + +This is direct copy-and-paste from the terminal window using the above +application and steps listed above. + +# FIRST RUN +---------------------------------------------------------------------- [EMAIL PROTECTED]:~/Projects/RegTest/RegTest/bin/Release$ ./RegTest.exe +Current Value: +Enter new URL: +http://google.com/?arg=val&arg2=val2 +Key Value: http://google.com/?arg=val&arg2=val2 +---------------------------------------------------------------------- + +# SECOND RUN +---------------------------------------------------------------------- [EMAIL PROTECTED]:~/Projects/RegTest/RegTest/bin/Release$ ./RegTest.exe +While loading registry key at +/home/ubuntu/.mono/registry/LocalMachine/software/regtest/values.xml: +System.Security.XmlSyntaxException: Invalid XML. ---> +Mono.Xml.SmallXmlParserException: Expected ';' but got =. At (3,57) + at Mono.Xml.SmallXmlParser.Expect (Int32 c) [0x00000] + at Mono.Xml.SmallXmlParser.ReadReference () [0x00000] + at Mono.Xml.SmallXmlParser.ReadCharacters () [0x00000] + at Mono.Xml.SmallXmlParser.ReadContent () [0x00000] + at Mono.Xml.SmallXmlParser.Parse (System.IO.TextReader input, +IContentHandler handler) [0x00000] + at Mono.Xml.SecurityParser.LoadXml (System.String xml) [0x00000] + at System.Security.SecurityElement.FromString (System.String xml) +[0x00000] --- End of inner exception stack trace --- + + at System.Security.SecurityElement.FromString (System.String xml) [0x00000] + at Microsoft.Win32.KeyHandler.Load () [0x00000] +Current Value: +Enter new URL: +... +---------------------------------------------------------------------- + +Expected Results: + +On the second run of the application, the error listed above should not +occur and the "Current Value: " line should contain the URL stored in the +values.xml file: "http://google.com/?arg=val&arg2=val2"; + +How often does this happen? + +This occurs 100% of the time when a value is stored in the registry on a +Linux system that contains an "&" (Ampersand). + +Suspected Cause: + +If I were to guess, I'd say that the SetValue() algorithm is incorrectly +writing values to their respective values.xml file in the ~/.mono/registry/ +directory. + +Additional Information: + +Here is the contents of the values.xml file after the first run of the +application: + +---------------------------------------------------------------------- [EMAIL PROTECTED]:~/.mono/registry/LocalMachine/software/regtest$ cat values.xml +<values> + <value name="URL" + type="string">http://google.com/?arg=val&arg2=val2</value> +</values> +---------------------------------------------------------------------- + +Just by viewing this file shows that the value is not being correctly +escaped. The correct value should be "http://google.com/?arg=val&arg2=val2"; + +After making this change to the file and running the application again +reveals this: +---------------------------------------------------------------------- [EMAIL PROTECTED]:~/Projects/RegTest/RegTest/bin/Release$ ./RegTest.exe +Current Value: http://google.com/?arg=val&arg2=val2 +Enter new URL: +... +---------------------------------------------------------------------- + +This is the expected result we should get. + +I marked this bug as MAJOR because the probability of "&" (Ampersands) +showing up in cross-platform applications is likely, and loss of settings +and data can occur. This is a very undesirable. _______________________________________________ mono-bugs maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-bugs
