Regex to Match Specific URL with Query String

Question

Hi I'm trying to match a specific URL that allows for query strings. Basically I need the following to happen:

• http://some.test.domain.com - Pass
• http://some.test.domain.com/ - Pass
• http://some.test.domain.com/home - Pass
• http://some.test.domain.com/?id=999 - Pass
• http://some.test.domain.com/home?id=888&rt=000 - Pass
• http://some.test.domain.com/other - Fail
• http://some.test.domain.com/another?id=999 - Fail

Here is what I have so far:

var pattern = new RegExp('^(https?:\/\/some\.test\.domain\.com(\/{0,1}|\/home{0,1}))$');
if (pattern.test(window.location.href)){
    console.log('yes');   
}

The above code only works for the first three and not for the query strings. Any help would be appreciated. Thanks.

Answer 1

A pattern like this should work (at least for your specific domain)

/^http:\/\/some\.test\.domain\.com(\/(home)?(\?.*)?)?$/

This will match a literal http://some.test.domain.com optionally followed by all of a literal / , optionally followed by a literal home , optionally followed by a literal ? and any number of other characters.

You can test it here

Answer 2

Don't use a Regex, use an URL parser. You could use purl

Then, you'll do:

url = "http://some.test.domain.com/home" // Or any other
purl(url).attr('path')  // is equal to "home" here.

You'll just need to check .attr('path') against your accepted paths (seemingly "" , "/" , and "home" ).

---

Here's some sample output:

purl("http://some.test.domain.com/?qs=1").attr('path')
"/"
purl("http://some.test.domain.com/other").attr("path")
"/other"
purl("http://some.test.domain.com/home").attr("path")
"/home"