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Cleaned csrf_protection_controller for very basic eslint rules
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symfony/stimulus-bundle/2.20/assets/controllers/csrf_protection_controller.js
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@@ -1,79 +1,88 @@ | ||
const nameCheck = /^[-_a-zA-Z0-9]{4,22}$/; | ||
const tokenCheck = /^[-_\/+a-zA-Z0-9]{24,}$/; | ||
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// Generate and double-submit a CSRF token in a form field and a cookie, as defined by Symfony's SameOriginCsrfTokenManager | ||
document.addEventListener('submit', function (event) { | ||
generateCsrfToken(event.target); | ||
}, true); | ||
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// When @hotwired/turbo handles form submissions, send the CSRF token in a header in addition to a cookie | ||
// The `framework.csrf_protection.check_header` config option needs to be enabled for the header to be checked | ||
document.addEventListener('turbo:submit-start', function (event) { | ||
const h = generateCsrfHeaders(event.detail.formSubmission.formElement); | ||
Object.keys(h).map(function (k) { | ||
event.detail.formSubmission.fetchRequest.headers[k] = h[k]; | ||
}); | ||
}); | ||
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// When @hotwired/turbo handles form submissions, remove the CSRF cookie once a form has been submitted | ||
document.addEventListener('turbo:submit-end', function (event) { | ||
removeCsrfToken(event.detail.formSubmission.formElement); | ||
}); | ||
const tokenCheck = /^[-_/+a-zA-Z0-9]{24,}$/; | ||
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export function generateCsrfToken(formElement) { | ||
const csrfField = formElement.querySelector('input[data-controller="csrf-protection"], input[name="_csrf_token"]'); | ||
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if (!csrfField) { | ||
return; | ||
} | ||
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let csrfCookie = csrfField.getAttribute('data-csrf-protection-cookie-value'); | ||
let csrfToken = csrfField.value; | ||
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if (!csrfCookie && nameCheck.test(csrfToken)) { | ||
csrfField.setAttribute('data-csrf-protection-cookie-value', (csrfCookie = csrfToken)); | ||
csrfToken = btoa( | ||
String.fromCharCode.apply(null, (window.crypto || window.msCrypto).getRandomValues(new Uint8Array(18))), | ||
); | ||
csrfField.defaultValue = csrfToken; | ||
csrfField.dispatchEvent(new Event('change', { bubbles: true })); | ||
} | ||
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if (csrfCookie && tokenCheck.test(csrfToken)) { | ||
const cookie = `${csrfCookie}_${csrfToken}=${csrfCookie}; path=/; samesite=strict`; | ||
document.cookie = window.location.protocol === 'https:' ? `__Host-${cookie}; secure` : cookie; | ||
} | ||
} | ||
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export function generateCsrfToken (formElement) { | ||
const csrfField = formElement.querySelector('input[data-controller="csrf-protection"], input[name="_csrf_token"]'); | ||
export function generateCsrfHeaders(formElement) { | ||
const headers = {}; | ||
const csrfField = formElement.querySelector('input[data-controller="csrf-protection"], input[name="_csrf_token"]'); | ||
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if (!csrfField) { | ||
return; | ||
} | ||
if (!csrfField) { | ||
return headers; | ||
} | ||
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let csrfCookie = csrfField.getAttribute('data-csrf-protection-cookie-value'); | ||
let csrfToken = csrfField.value; | ||
const csrfCookie = csrfField.getAttribute('data-csrf-protection-cookie-value'); | ||
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if (!csrfCookie && nameCheck.test(csrfToken)) { | ||
csrfField.setAttribute('data-csrf-protection-cookie-value', csrfCookie = csrfToken); | ||
csrfField.defaultValue = csrfToken = btoa(String.fromCharCode.apply(null, (window.crypto || window.msCrypto).getRandomValues(new Uint8Array(18)))); | ||
csrfField.dispatchEvent(new Event('change', { bubbles: true })); | ||
} | ||
if (tokenCheck.test(csrfField.value) && nameCheck.test(csrfCookie)) { | ||
headers[csrfCookie] = csrfField.value; | ||
} | ||
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if (csrfCookie && tokenCheck.test(csrfToken)) { | ||
const cookie = csrfCookie + '_' + csrfToken + '=' + csrfCookie + '; path=/; samesite=strict'; | ||
document.cookie = window.location.protocol === 'https:' ? '__Host-' + cookie + '; secure' : cookie; | ||
} | ||
return headers; | ||
} | ||
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export function generateCsrfHeaders (formElement) { | ||
const headers = {}; | ||
const csrfField = formElement.querySelector('input[data-controller="csrf-protection"], input[name="_csrf_token"]'); | ||
export function removeCsrfToken(formElement) { | ||
const csrfField = formElement.querySelector('input[data-controller="csrf-protection"], input[name="_csrf_token"]'); | ||
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if (!csrfField) { | ||
return headers; | ||
} | ||
if (!csrfField) { | ||
return; | ||
} | ||
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const csrfCookie = csrfField.getAttribute('data-csrf-protection-cookie-value'); | ||
const csrfCookie = csrfField.getAttribute('data-csrf-protection-cookie-value'); | ||
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if (tokenCheck.test(csrfField.value) && nameCheck.test(csrfCookie)) { | ||
headers[csrfCookie] = csrfField.value; | ||
} | ||
if (tokenCheck.test(csrfField.value) && nameCheck.test(csrfCookie)) { | ||
const cookie = `${csrfCookie}_${csrfField.value}=0; path=/; samesite=strict; max-age=0`; | ||
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return headers; | ||
document.cookie = window.location.protocol === 'https:' ? `__Host-${cookie}; secure` : cookie; | ||
} | ||
} | ||
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export function removeCsrfToken (formElement) { | ||
const csrfField = formElement.querySelector('input[data-controller="csrf-protection"], input[name="_csrf_token"]'); | ||
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if (!csrfField) { | ||
return; | ||
} | ||
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const csrfCookie = csrfField.getAttribute('data-csrf-protection-cookie-value'); | ||
// Generate and double-submit a CSRF token in a form field and a cookie, as defined by Symfony's SameOriginCsrfTokenManager | ||
document.addEventListener( | ||
'submit', | ||
(event) => { | ||
generateCsrfToken(event.target); | ||
}, | ||
true, | ||
); | ||
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if (tokenCheck.test(csrfField.value) && nameCheck.test(csrfCookie)) { | ||
const cookie = csrfCookie + '_' + csrfField.value + '=0; path=/; samesite=strict; max-age=0'; | ||
// When @hotwired/turbo handles form submissions, send the CSRF token in a header in addition to a cookie | ||
// The `framework.csrf_protection.check_header` config option needs to be enabled for the header to be checked | ||
document.addEventListener('turbo:submit-start', (event) => { | ||
const h = generateCsrfHeaders(event.detail.formSubmission.formElement); | ||
// eslint-disable-next-line array-callback-return | ||
Object.keys(h).map((k) => { | ||
// eslint-disable-next-line no-param-reassign | ||
event.detail.formSubmission.fetchRequest.headers[k] = h[k]; | ||
}); | ||
}); | ||
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document.cookie = window.location.protocol === 'https:' ? '__Host-' + cookie + '; secure' : cookie; | ||
} | ||
} | ||
// When @hotwired/turbo handles form submissions, remove the CSRF cookie once a form has been submitted | ||
document.addEventListener('turbo:submit-end', (event) => { | ||
removeCsrfToken(event.detail.formSubmission.formElement); | ||
}); | ||
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/* stimulusFetch: 'lazy' */ | ||
export default 'csrf-protection-controller'; |