Need a Regular expression which passes FQDN, filepath, URL as well.

Question

User254389092 posted

Hi Team,

I have started working on a Regular expression and I am unable to create one. I need a regular expression that passes all the samples.

\MT-SLO-X004\Share
\MT-SLO-X004.slo.company.corp\Share
C:\temp\share

and also http(s)://www.sample.com

Right now, I am using 

^(\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})|(http:\/\/.+)|(\w:\\.+)$

My Line of code is: 

[LocalizedRegularExpression(@"^\\(\\[\w-]+){1,}(\\[\w-()]+(\s[\w-()]+)*)+(\\(([\w-()]+(\s[\w-()]+)*)+\.[\w]+)?)?$", "VM_REPORTING_REPORTSUBSCRIBESERVERVIEWMODEL_PATH_ERROR")]

I am attempting multiple entries to check.

But it mainly solves the URL issue. I have also tried:

^\\(\\[\w-]+){1,}(\\[\w-()]+(\s[\w-()]+)*)+(\\(([\w-()]+(\s[\w-()]+)*)+\.[\w]+)?)?$

<div>^(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.]+$</div> <div></div> <div>can anyone please help me with a Regular expression that validates a URL, a file path (remote machine as well), an FQDN as well. </div> <div></div> <div>Luc</div>

Answer 1

User288213138 posted

Hi Lucifer_deep,

Lucifer_deep

can anyone please help me with a Regular expression that validates a URL, a file path (remote machine as well), an FQDN as well. 

You can write separate regular expressions and associate them with "|" .

Validate a URL:[a-zA-z]+://[^\s]*

Validate a file path:^[a-zA-Z]:(((\\(?! )[^/:*?<>\""|\\]+)+\\?)|(\\)?)\s*$

Validate FQDN: [a-zA-Z0-9][-a-zA-Z0-9]{0,62}(/.[a-zA-Z0-9][-a-zA-Z0-9]{0,62})+/.?

Regular expression: ^[a-zA-z]+://[^\s]*|[a-zA-Z]:(((\\(?! )[^/:*?<>\""|\\]+)+\\?)|(\\)?)\s*|[a-zA-Z0-9][-a-zA-Z0-9]{0,62}(/.[a-zA-Z0-9][-a-zA-Z0-9]{0,62})+/.?$

Best regards,

Sam

Answer 2

User254389092 posted

Thanks samwu,

unfortunately, this expression handles the file path but not the other examples. My test cases are:

FQDN: \MT-SLO-X004\Share
FQDN: \MT-SLO-X004.slo.company.corp\Share
file path: C:\temp\share

URL: https://website.com

only file path worked out with the provided expression. 

individually, somethings work but when I merge with |, things are falling apart. Any help is appreciated. 

I have tried: 

/^(\\\\?([^\\/]*[\\/])*)([^\\/]+)|(?=^.{4,253}$)(^((?!-)[a-zA-Z0-9-]{0,62}[a-zA-Z0-9]\.)+[a-zA-Z]{2,63}$)|(?=.*[^\.]$)((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.?){4}|(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.]+$

Answer 3

User288213138 posted

Hi lucifer_deep,

Lucifer_deep

unfortunately, this expression handles the file path but not the other examples.

Lucifer_deep

FQDN: \MT-SLO-X004\Share
FQDN: \MT-SLO-X004.slo.company.corp\Share

As far as i know, FQDN is composed of host name + domain name. This is not FQDN. 

You can refer to this link:https://en.wikipedia.org/wiki/Fully_qualified_domain_name

If you want to validate a FQDN, you can try this expression:

Validate FQDN: ^(?=^.{4,253}$)(^((?!-)[a-zA-Z0-9-]{0,62}[a-zA-Z0-9]\.)+[a-zA-Z]{2,63}$)$

Regular expression: [a-zA-z]+://[^\s]*|[a-zA-Z]:(((\\(?! )[^/:*?<>\""|\\]+)+\\?)|(\\)?)\s*|(?=^.{4,253}$)(^((?!-)[a-zA-Z0-9-]{0,62}[a-zA-Z0-9]\.)+[a-zA-Z]{2,63}$)

The result:

My test tool:https://www.freeformatter.com/regex-tester.html

Best regards,

Sam

Answer 4

User254389092 posted

Hi,

I would prefer a regex which might work on my examples as well.

Answer 5

User288213138 posted

Hi Lucifer_deep,

You can try below regular expression:

Validate FQDN: (((\\(?! )[^/:*?<>\""|\\]+)+\\?)|(\\)?)\s*


Regular expression: ([a-zA-z]+://[^\s]*)|([a-zA-Z]:(((\\(?! )[^/:*?<>\""|\\]+)+\\?)|(\\)?)\s*)|((((\\(?! )[^/:*?<>\""|\\]+)+\\?)|(\\)?)\s)

The result:

Best regards,

Sam

Answer 6

User254389092 posted

That was close Samwu, 

It works on the website you used to migrate but not on the VS. My FQDNs:

\\MT-SLO-X004\Share
\\MT-SLO-X004.slo.mitratech.corp\Share

still, are invalid on Visual Studio. 

My code in VS where I implemented the Regular expression is:

/// <summary>
      /// The path to use
      /// </summary>
      [LocalizedDisplay("VM_xxxxVIEWMODEL_PATH")]
      [LocalizedRequired("VM_REPORTING_VIEWMODEL_PATH_REQUIRED")]
      [LocalizedRegularExpression(@"^\\(\\[\w-]+){1,}(\\[\w-()]+(\s[\w-()]+)*)+(\\(([\w-()]+(\s[\w-()]+)*)+\.[\w]+)?)?$", "VM_REPORTING_REPORTxxxxVIEWMODEL_PATH_ERROR")]

I hope you can direct me in the right direction where I am wrong. Please help me with this</div>

Answer 7

User254389092 posted

Hi,

Unfortunately, This is still not working. I need IP address and FQDN specific to get my work done.

Mainly: 

\MT-SLO-X004\Share
\MT-SLO-X004.slo.company.corp\Share

122.22.22.22

those are the samples I need to work with on my code. The last regular expression provided works on online checks but not on my code. Please help me. 

Luc 

Answer 8

User288213138 posted

Hi Hi Lucifer_deep,

Unfortunately, This is still not working. I need IP address and FQDN specific to get my work done.

I made demo for you:

<script>
        function check(e) {
            var lable = document.getElementById("Label1");
            var v = e.value;
            var exp = /^(\\\\?([^\\/]*[\\/])*)([^\\/]+)|(((\\(?! )[^/:*?<>\""|\\]+)+\\?)|(\\)?)\s*|(?=.*[^\.]$)((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.?){4}|(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.]+$/igm;

            if ((exp.test(v)))
            {
                lable.innerText = "True";
            }
            else
            {
                lable.innerText = "False";
            }
        }
    </script>

<asp:TextBox ID="TextBox1" runat="server" Width="300px" onblur="check(this)"></asp:TextBox><br />
            <asp:Label ID="Label1" runat="server"></asp:Label>
            <br />
            File Path Sample: C:\temp\share<br />
            FQDN Sample: \MT-SLO-X004\Share<br />
           \MT-SLO-X004.slo.company.corp\Share<br />
            IP Addresses Sample: 122.22.22.22<br />
            URL Sample: http://www.sample.com<br />

The result:

Best regards,

Sam

Answer 9

User254389092 posted

Hi samwu,

My code with your new expression looks like this:

/// <summary>
/// The path to use
/// </summary>
[LocalizedDisplay("VM_REPORTING_REPORTSUBSCRIBESERVERVIEWMODEL_PATH")]
[LocalizedRequired("VM_REPORTING_REPORTSUBSCRIBESERVERVIEWMODEL_PATH_REQUIRED")]
[LocalizedRegularExpression(@"(\\\\?([^\\/]*[\\/])*)([^\\/]+)|(((\\(?! )[^/:*?<>\""|\\]+)+\\?)|(\\)?)\s*|(?=.*[^\.]$)((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.?){4}|(?:http(s)?:\/\/)?[\w.-]+(?:\.[\w\.-]+)+[\w\-\._~:/?#[\]@!\$&'\(\)\*\+,;=.]+", "VM_REPORTING_REPORTSUBSCRIBESERVERVIEWMODEL_PATH_ERROR")]
public string Path { get; set; }

This is not the right way I guess, Because, I still have the error. Can you please correct my Line if anything is wrong in there?

Luc

Answer 10

User288213138 posted

Hi Lucifer_deep,

LocalizedRegularExpression

Can you tell me what is LocalizedRegularExpression?

Best regards,

Sam

Answer 11

User254389092 posted

It should be a normal Regular expression. 

public LocalizedRegularExpressionAttribute(string pattern, string key)
: base(pattern)
{
this.LocalizedKey = key;
}

That is the definition from my LocalizedRegularExpressionattribute.cs file. I have seen it. Hope this helps.

Luc

Answer 12

User288213138 posted

Hi Lucifer_deep,

It should be a normal Regular expression. 

public LocalizedRegularExpressionAttribute(string pattern, string key)
: base(pattern)
{
this.LocalizedKey = key;
}

That is the definition from my LocalizedRegularExpressionattribute.cs file. I have seen it. Hope this helps.

Luc

I mean how do you validate your regular expression? can you show me your code?

Best regards,

Sam

Answer 13

User254389092 posted

The validation will be automatic, so the code will be part of the framework. All I need to do is to find a regex that will match these:

\\MT-SLO-X004\Share
\\MT-SLO-X004.slo.company.corp\Share
C:\temp\share

And then test it with the same values. This is what the Subject Matter Expert said.

Luc

Answer 14

User288213138 posted

Hi lucifer_deep,

The validation will be automatic, so the code will be part of the framework.

I mean how do you automatically verify it? What method is used?

\\MT-SLO-X004\Share
\\MT-SLO-X004.slo.company.corp\Share

Is this string preceded by a "/" or two "/"? You only have a "/" above.

Best regards,

Sam