Wrap withinString in try/catch
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@ -22,41 +22,45 @@ function findLinks(text) {
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// <a>-Tags.
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// See https://medialize.github.io/URI.js/docs.html#static-withinString
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// In our case, we store each URI encountered in a result array.
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URI.withinString(text, function(url, start, end) {
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let parsedScheme;
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try {
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URI.withinString(text, function(url, start, end) {
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let parsedScheme;
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try {
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// Extract the scheme of the URL detected, if there is one
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parsedScheme = URI(url).scheme().toLowerCase();
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} catch (e) {
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// URI may throw an exception for malformed urls,
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// as to why withinString finds these in the first place is a mystery
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return;
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}
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try {
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// Extract the scheme of the URL detected, if there is one
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parsedScheme = URI(url).scheme().toLowerCase();
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} catch (e) {
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// URI may throw an exception for malformed urls,
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// as to why withinString finds these in the first place is a mystery
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return;
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}
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// Check if the scheme of the detected URL matches a common one above.
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// In a URL like `foo..http://example.com`, the scheme would be `foo..http`,
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// so we need to clean up the end of the scheme and filter out the rest.
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const matchedScheme = commonSchemes.find((scheme) => parsedScheme.endsWith(scheme));
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// Check if the scheme of the detected URL matches a common one above.
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// In a URL like `foo..http://example.com`, the scheme would be `foo..http`,
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// so we need to clean up the end of the scheme and filter out the rest.
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const matchedScheme = commonSchemes.find((scheme) => parsedScheme.endsWith(scheme));
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// A known scheme was found, extract the unknown part from the URL
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if (matchedScheme) {
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const prefix = parsedScheme.length - matchedScheme.length;
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start += prefix;
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url = url.slice(prefix);
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}
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// A known scheme was found, extract the unknown part from the URL
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if (matchedScheme) {
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const prefix = parsedScheme.length - matchedScheme.length;
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start += prefix;
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url = url.slice(prefix);
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}
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// The URL matched but does not start with a scheme (`www.foo.com`), add it
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if (!parsedScheme.length) {
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url = "http://" + url;
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}
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// The URL matched but does not start with a scheme (`www.foo.com`), add it
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if (!parsedScheme.length) {
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url = "http://" + url;
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}
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result.push({
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start: start,
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end: end,
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link: url
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result.push({
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start: start,
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end: end,
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link: url
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});
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});
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});
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} catch (e) {
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// withinString is wrapped in a try/catch due to https://github.com/medialize/URI.js/issues/359
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}
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return result;
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}
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