Open Link

script

function openURLUnderCursor()
{
	let strURL = grabURL();
	if(strURL == undefined) app.displayErrorMessage("No valid URL found at cursor");
	else app.openURL(strURL);
}


function validateURL(p_strURL)
{
	let httpChecker = HTTP.create();

	let respChecker = httpChecker.request(
		{
			"url": p_strURL,
			"method": "GET"
		});

	if (respChecker.success) return true;
	else return false;
}

function isEnder(p_strInput)
{
	return (!p_strInput || p_strInput.length === 0 || /^\s*$/.test(p_strInput) || p_strInput == "\n")
}

function grabURL()
{
	//Initialise the starting position
	let aintSel = editor.getSelectedRange();

	//Initialise the start and end markers
	let intStart = aintSel[0];
	let intEnd = aintSel[0];

	//Initialise the start and end characters
	let strStart = editor.getTextInRange(intStart,1);
	let strEnd = editor.getTextInRange(intEnd,1);

	//Extend back to the first whitespace, new line, or start of content
	while (intStart > 0 && !isEnder(strStart))
	{
		intStart--;
		strStart = editor.getTextInRange(intStart,1);
	}
	intStart++;

	//Extend forward to the first whitespace, new line, or end of content
	while (intEnd < editor.getText().length && !isEnder(strEnd))
	{
		intEnd++;
		strEnd = editor.getTextInRange(intEnd, 1);
	}

	//Grab what we've narrowed it down to
	let strWorking = editor.getTextInRange(intStart, intEnd - intStart);

	//If the selected text contains double quotes, then we can reasonably assume that we
	//are dealing with a URL contained in double quotes.
	if(strWorking.includes('"')) strWorking = strWorking.split('"')[1];
	//Likewise single quotes.
	else if(strWorking.includes("'")) strWorking = strWorking.split("'")[1];
	//If it is a markdown link we need to work a bit smarter
	else if(strWorking.endsWith(")"))
	{
		let intFrom = strWorking.lastIndexOf("(") + 1;
		let intTo = strWorking.length - 1;
		strWorking = strWorking.substring(intFrom, intTo);
	}

	if(strWorking.includes("://")) return strWorking;
	if(validateURL(strWorking)) return strWorking;
	if(validateURL("https://" + strWorking)) return strWorking;
	if(validateURL("http://" + strWorking)) return strWorking;
	return;
}

openURLUnderCursor();