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revert: src/infra/ucan.js to last working checkpoint #71

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Apr 29, 2024
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revert: src/infra/ucan.js to last working checkpoint #71

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101 changes: 33 additions & 68 deletions src/infra/ucan.js
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Original file line number Diff line number Diff line change
Expand Up @@ -8,88 +8,53 @@ const serviceDID = config.SERVICE_DID;
let verify = (req, res, next) => {
req.requestId = uuidv4();
console.log('req.requestId: ', req.requestId);

let token = req.headers['authorization']; // Express headers are auto converted to lowercase
if (token && token.startsWith('Bearer ')) {
// Remove Bearer from string
token = token.slice(7, token.length);
}
const contractAddress = req.headers?.contract;
const invokerAddress = req.headers?.invoker;
const chainId = req.headers?.chain;
const contractAddress = req.headers && req.headers.contract;
const invokerAddress = req.headers && req.headers.invoker;
const chainId = req.headers && req.headers.chain;
req.isAuthenticated = false;
req.invokerAddress = invokerAddress;
req.contractAddress = contractAddress;
req.chainId = chainId;

// request remains not authenticated if no token is provided
if (!token) {
next()
return
}

if (contractAddress) {
collaboratorKey({
contractAddress, invokerAddress, chainId
}).then((invokerDID) => {
if (invokerDID) {
ucans.verify(token, {
// to make sure we're the intended recipient of this UCAN
audience: serviceDID,
// capabilities required for this invocation & which owner we expect for each capability
requiredCapabilities: [
{
capability: {
with: { scheme: "storage", hierPart: contractAddress.toLowerCase() },
can: { namespace: "file", segments: ["CREATE"] }
},
rootIssuer: invokerDID,
if (token && contractAddress) {
collaboratorKey({ contractAddress, invokerAddress, chainId })
.then((invokerDID) => {
if (invokerDID) {
ucans.verify(token, {
// to make sure we're the intended recipient of this UCAN
audience: serviceDID,
// capabilities required for this invocation & which owner we expect for each capability
requiredCapabilities: [
{
capability: {
with: { scheme: "storage", hierPart: contractAddress.toLowerCase() },
can: { namespace: "file", segments: ["CREATE"] }
},
rootIssuer: invokerDID,
}
],
}).then((result) => {
console.log(result);
if (result.ok) {
req.isAuthenticated = true;
}
],
}).then((result) => {
console.log(result);
if (result.ok) {
req.isAuthenticated = true;
}
next();
});
} else {
next();
});
} else {
}
})
.catch((error) => {
console.log(error);
next();
}
}).catch((error) => {
console.log(error);
next();
});
});
} else {
/* handle temp user auth
* here the invoker address is expected to be public DID of the temp user
* and the ucan token should be issued by the service DID
*/
ucans.verify(token, {
audience: serviceDID,
requiredCapabilities: [
{
capability: {
with: { scheme: "storage", hierPart: invokerAddress.toLowerCase() },
can: { namespace: "file", segments: ["CREATE"] }
},
rootIssuer: invokerAddress.toLowerCase(),
}
],
}).then((result) => {
console.log(result);
if (result.ok) {
req.isAuthenticated = true;
}
}).catch((error) => {
console.log(error);
});
next();
}


next();
};



module.exports = { verify };