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Files and folders cannot end with dots

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This commit is contained in:
Robert McRackan 2022-03-25 13:51:29 -04:00
parent 2eaac6acc2
commit cbc61f5a2d
3 changed files with 58 additions and 5 deletions
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2
AppScaffolding/AppScaffolding.csproj
View File

@ -3,7 +3,7 @@
<PropertyGroup>
<TargetFramework>net6.0</TargetFramework>
<Version>6.7.2.1</Version>
<Version>6.7.3.1</Version>
</PropertyGroup>
<ItemGroup>

12
FileManager/FileUtility.cs
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@ -139,7 +139,7 @@ namespace FileManager
return path[0] + remainder;
}
private static string removeInvalidWhitespace_pattern { get; } = $@"\s*\{Path.DirectorySeparatorChar}\s*";
private static string removeInvalidWhitespace_pattern { get; } = $@"[\s\.]*\{Path.DirectorySeparatorChar}\s*";
private static Regex removeInvalidWhitespace_regex { get; } = new(removeInvalidWhitespace_pattern, RegexOptions.Compiled | RegexOptions.IgnorePatternWhitespace);
/// <summary>no part of the path may begin or end in whitespace</summary>
@ -149,14 +149,20 @@ namespace FileManager
// replace whitespace around path slashes
// regex (with space added for clarity)
// \s* \\ \s* => \
fullfilename = fullfilename.Trim();
// no ending dots. beginning dots are valid
fullfilename = removeInvalidWhitespace_regex.Replace(fullfilename, @"\");
// regex is easier by ending with separator
fullfilename += Path.DirectorySeparatorChar;
fullfilename = removeInvalidWhitespace_regex.Replace(fullfilename, Path.DirectorySeparatorChar.ToString());
// take seperator back off
fullfilename = RemoveLastCharacter(fullfilename);
fullfilename = removeDoubleSlashes(fullfilename);
return fullfilename;
}
public static string RemoveLastCharacter(this string str) => string.IsNullOrEmpty(str) ? str : str[..^1];
/// <summary>
/// Move file.
/// <br/>- Ensure valid file name path: remove invalid chars, ensure uniqueness, enforce max file length

47
_Tests/FileManager.Tests/FileUtilityTests.cs
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@ -113,4 +113,51 @@ namespace FileUtilityTests
public void Tests(string input, string expected)
=> FileUtility.GetStandardizedExtension(input).Should().Be(expected);
}
[TestClass]
public class GetValidFilename
{
[TestMethod]
// dot-files
[DataRow(@"C:\a bc\x y z\.f i l e.txt")]
// dot-folders
[DataRow(@"C:\a bc\.x y z\f i l e.txt")]
public void Valid(string input) => Tests(input, input);
[TestMethod]
// folder spaces
[DataRow(@"C:\ a bc \x y z ", @"C:\a bc\x y z")]
// file spaces
[DataRow(@"C:\a bc\x y z\ f i l e.txt ", @"C:\a bc\x y z\f i l e.txt")]
// eliminate beginning space and end dots and spaces
[DataRow(@"C:\a bc\ . . . x y z . . . \f i l e.txt", @"C:\a bc\. . . x y z\f i l e.txt")]
// file end dots
[DataRow(@"C:\a bc\x y z\f i l e.txt . . .", @"C:\a bc\x y z\f i l e.txt")]
public void Tests(string input, string expected)
=> FileUtility.GetValidFilename(input).Should().Be(expected);
}
[TestClass]
public class RemoveLastCharacter
{
[TestMethod]
public void is_null() => Tests(null, null);
[TestMethod]
public void empty() => Tests("", "");
[TestMethod]
public void single_space() => Tests(" ", "");
[TestMethod]
public void multiple_space() => Tests(" ", " ");
[TestMethod]
[DataRow("1", "")]
[DataRow("1 ", "1")]
[DataRow("12", "1")]
[DataRow("123", "12")]
public void Tests(string input, string expected)
=> FileUtility.RemoveLastCharacter(input).Should().Be(expected);
}
}