Add support for custom protocols#153
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brandon93s wants to merge 1 commit intosindresorhus:mainfrom
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sindresorhus
requested changes
Sep 7, 2021
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| test('supports custom protocol', t => { | ||
| t.is(normalizeUrl('custom://sindresorhus.com'), 'custom://sindresorhus.com'); |
Owner
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Can you also add a test with custom:sindresorhus.com (no slashes)?
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| // Prepend protocol | ||
| if (!isRelativeUrl) { | ||
| if (!isRelativeUrl & !hasCustomProtocol) { |
Owner
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Suggested change
| if (!isRelativeUrl & !hasCustomProtocol) { | |
| if (!isRelativeUrl && !hasCustomProtocol) { |
Owner
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From the issue:
Did you? |
dink42
approved these changes
Sep 24, 2021
Owner
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Friendly bump :) |
jsmarketingrus
approved these changes
Mar 14, 2022
dink42
approved these changes
Mar 14, 2022
sindresorhus
reviewed
Sep 1, 2022
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| const hasRelativeProtocol = urlString.startsWith('//'); | ||
| const isRelativeUrl = !hasRelativeProtocol && /^\.*\//.test(urlString); | ||
| const hasCustomProtocol = /^[a-z.+-]*[.+-][a-z.+-]*:\/\//i.test(urlString); |
Owner
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Suggested change
| const hasCustomProtocol = /^[a-z.+-]*[.+-][a-z.+-]*:\/\//i.test(urlString); | |
| const hasCustomProtocol = /^[a-z][a-z.+-]*?[.+-][a-z.+-]*?:/i.test(urlString); |
a protocol does not need // and it has to start with a-z: https://stackoverflow.com/questions/3641722/valid-characters-for-uri-schemes
Owner
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Also add a sensible length limit to prevent ReDoS abuse.
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I may be oversimplifying here, but this feels like a bug fix to not apply the protocol prefix when a custom prefix is present. Retains existing functionality and adds support for custom protocols. Closes #152.