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feat: re-allow disabling of remote gateways #416

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merged 1 commit into from
Dec 1, 2023
Merged

feat: re-allow disabling of remote gateways #416

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22 changes: 20 additions & 2 deletions src/lib/init-helia.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,16 @@ import { getHashersForCodes } from './hash-importer.js'
import { addDagNodeToHelia } from '../lib/helpers.js'
import type { KuboGatewayOptions } from '../types.d.js'

function areRemoteGatewaysEnabled (): boolean {
const localStorageKey = 'explore.ipld.gatewayEnabled'
console.info(
`🎛️ Customise whether ipld-explorer-components fetches content from gateways by setting an '${localStorageKey}' value to true/false in localStorage. e.g. localStorage.setItem('explore.ipld.gatewayEnabled', false) -- NOTE: defaults to true`
)
const gatewayEnabledSetting = localStorage.getItem(localStorageKey)

return gatewayEnabledSetting != null ? JSON.parse(gatewayEnabledSetting) : true
}

export default async function initHelia (kuboGatewayOptions: KuboGatewayOptions): Promise<Helia> {
const blockstore = new MemoryBlockstore()
const datastore = new MemoryDatastore()
Expand Down Expand Up @@ -53,11 +63,19 @@ export default async function initHelia (kuboGatewayOptions: KuboGatewayOptions)
}
})

// Always add the Kubo gatewawy
const trustlessGateways = [
trustlessGateway({ gateways: [`${kuboGatewayOptions.protocol ?? 'http'}://${kuboGatewayOptions.host}:${kuboGatewayOptions.port}`] })
]

if (areRemoteGatewaysEnabled()) {
trustlessGateways.push(trustlessGateway())
}

const helia = await createHelia({
blockBrokers: [
// no bitswap
trustlessGateway(),
trustlessGateway({ gateways: [`${kuboGatewayOptions.protocol ?? 'http'}://${kuboGatewayOptions.host}:${kuboGatewayOptions.port}`] })
...trustlessGateways
],
// #WhenAddingNewHasher
hashers: await getHashersForCodes(17, 18, 19, 20, 27, 30),
Expand Down
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