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Expose option that allows for signature header name to be dynamic. #26

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Expose option that allows for signature header name to be dynamic. #26

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384ea47
Expose option that allows for signature header name to be dynamic.
tolson4 Jul 21, 2023
59a5e9e
Ensure `authzHeaderName` option is string.
tolson4 Jul 21, 2023
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6 changes: 5 additions & 1 deletion lib/index.js
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Original file line number Diff line number Diff line change
Expand Up @@ -49,6 +49,7 @@ export async function signCapabilityInvocation({
capabilityAction,
invocationSigner,
created = Math.floor(Date.now() / 1000),
authzHeaderName = 'authorization',
expires
}) {
try {
Expand All @@ -75,6 +76,9 @@ export async function signCapabilityInvocation({
'"capability" must be a string to invoke a root capability or an ' +
'object to invoke a delegated capability.');
}
if(!(authzHeaderName && typeof authzHeaderName === 'string')) {
throw new TypeError('"authzHeaderName" must be a string.');
}

// if capability is a root zcap, use just its ID
if(typeof capability === 'object' && !capability.parentCapability) {
Expand Down Expand Up @@ -135,7 +139,7 @@ export async function signCapabilityInvocation({
const data = new TextEncoder().encode(plaintext);
const signature = base64Encode(await invocationSigner.sign({data}));

signed.authorization = createAuthzHeader({
signed[authzHeaderName.toLowerCase()] = createAuthzHeader({
includeHeaders,
keyId,
signature,
Expand Down