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Changes the format of the signature to allow for later extensions. #18

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Changes the format of the signature to allow for later extensions. #18

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705c55e
Changes the format of the signature to allow for later extensions.
steamraven Dec 20, 2018
d8ce253
Updated promise code in signature validation.
steamraven Dec 24, 2018
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37 changes: 21 additions & 16 deletions src/background.js
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Original file line number Diff line number Diff line change
Expand Up @@ -158,31 +158,36 @@ function validateSignature(content, signature, pageOptions, pubkey) {
});
}

// Returns when first promise returns true
function promise_any(promises) {
return new Promise((resolve,reject) => {
Promise.all(promises.map(promise => promise.then(value => {
if (value)
resolve(value);
return value;
}).catch( error => {
reject(error);
}))).then(values => {
if (values.every(x => x == false))
resolve(false)
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Okay, this resolves promises with false. So it is only supported for promises that return boolean values…

})
})
}

function validateSignatures(content, options, pubKey, method) {
let last = Promise.resolve(false);
for (let signature of options.signatures) {
let promise = null;
return promise_any(options.signatures.map(signature => {
if (signature.allowedmethods.includes(method.toLowerCase())) {
if (signature.type == 'pgp') {
promise = validateSignature(content, signature.signature, options, pubKey);
return validateSignature(content, signature.signature, options, pubKey);
} else if (signature.type == 'pgpMinimized') {
if (matchVersions(signature.version, '1.0.0')) {
const signedContent = minimize_1_0(content);
promise = validateSignature(signedContent, signature.signature, options, pubKey);
return validateSignature(signedContent, signature.signature, options, pubKey);
}
}
}
// Chain promises returning when the first one is true
if (promise) {
last = last.then(verified => {
if (verified)
return verified;
else
return promise;
})
}
}
return last;
return Promise.resolve(false);
}))
}

function processPage(rawContent, legacySignature, url, tabId, method) {
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