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Bug fix: in paths, double slashes are not allowed *except* at beginning. eg: \\192.168.0.1 (issue #157 )

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This commit is contained in:
Robert McRackan 2021-11-24 13:42:11 -05:00
parent b3dc5a7054
commit 530b44a0e6
2 changed files with 32 additions and 12 deletions
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2
AppScaffolding/AppScaffolding.csproj
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@ -3,7 +3,7 @@
<PropertyGroup>
<TargetFramework>net6.0</TargetFramework>
<Version>6.5.0.1</Version>
<Version>6.5.1.1</Version>
</PropertyGroup>
<ItemGroup>

42
FileManager/FileUtility.cs
View File

@ -86,34 +86,54 @@ namespace FileManager
{
ArgumentValidator.EnsureNotNull(path, nameof(path));
var invalidChars = Path.GetInvalidPathChars().Union(new[] {
path = replaceInvalidChars(path, illegalCharacterReplacements);
path = standardizeSlashes(path);
path = replaceColons(path, illegalCharacterReplacements);
path = removeDoubleSlashes(path);
return path;
}
private static char[] invalidChars { get; } = Path.GetInvalidPathChars().Union(new[] {
'*', '?',
// these are weird. If you run Path.GetInvalidPathChars() in C# interactive, these characters are included.
// these are weird. If you run Path.GetInvalidPathChars() in Visual Studio's "C# Interactive", then these characters are included.
// In live code, Path.GetInvalidPathChars() does not include them
'"', '<', '>'
}).ToArray();
private static string replaceInvalidChars(string path, string illegalCharacterReplacements)
=> string.Join(illegalCharacterReplacements ?? "", path.Split(invalidChars));
var fixedPath = string
.Join(illegalCharacterReplacements ?? "", path.Split(invalidChars))
.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar);
private static string standardizeSlashes(string path)
=> path.Replace(Path.AltDirectorySeparatorChar, Path.DirectorySeparatorChar);
private static string replaceColons(string path, string illegalCharacterReplacements)
{
// replace all colons except within the first 2 chars
var builder = new System.Text.StringBuilder();
for (var i = 0; i < fixedPath.Length; i++)
for (var i = 0; i < path.Length; i++)
{
var c = fixedPath[i];
var c = path[i];
if (i >= 2 && c == ':')
builder.Append(illegalCharacterReplacements);
else
builder.Append(c);
}
fixedPath = builder.ToString();
return builder.ToString();
}
private static string removeDoubleSlashes(string path)
{
if (path.Length < 2)
return path;
// exception: don't try to condense the initial dbl bk slashes in a path. eg: \\192.168.0.1
var remainder = path[1..];
var dblSeparator = $"{Path.DirectorySeparatorChar}{Path.DirectorySeparatorChar}";
while (fixedPath.Contains(dblSeparator))
fixedPath = fixedPath.Replace(dblSeparator, $"{Path.DirectorySeparatorChar}");
while (remainder.Contains(dblSeparator))
remainder = remainder.Replace(dblSeparator, $"{Path.DirectorySeparatorChar}");
return fixedPath;
return path[0] + remainder;
}
/// <summary>