gradido/backend/src/federation/validateCommunities.ts
2023-10-23 22:50:24 +02:00

105 lines
4.1 KiB
TypeScript

/** eslint-disable @typescript-eslint/no-unsafe-assignment */
/** eslint-disable @typescript-eslint/no-unsafe-call */
import { IsNull } from '@dbTools/typeorm'
import { Community as DbCommunity } from '@entity/Community'
import { FederatedCommunity as DbFederatedCommunity } from '@entity/FederatedCommunity'
// eslint-disable-next-line camelcase
import { FederationClient as V1_0_FederationClient } from '@/federation/client/1_0/FederationClient'
import { PublicCommunityInfo } from '@/federation/client/1_0/model/PublicCommunityInfo'
import { FederationClientFactory } from '@/federation/client/FederationClientFactory'
import { backendLogger as logger } from '@/server/logger'
import { startCommunityAuthentication } from './authenticateCommunities'
import { ApiVersionType } from './enum/apiVersionType'
export async function startValidateCommunities(timerInterval: number): Promise<void> {
logger.info(
`Federation: startValidateCommunities loop with an interval of ${timerInterval} ms...`,
)
// delete all foreign federated community entries to avoid increasing validation efforts and log-files
await DbFederatedCommunity.delete({ foreign: true })
// TODO: replace the timer-loop by an event-based communication to verify announced foreign communities
// better to use setTimeout twice than setInterval once -> see https://javascript.info/settimeout-setinterval
setTimeout(function run() {
void validateCommunities()
setTimeout(run, timerInterval)
}, timerInterval)
}
export async function validateCommunities(): Promise<void> {
const dbFederatedCommunities: DbFederatedCommunity[] =
await DbFederatedCommunity.createQueryBuilder()
.where({ foreign: true, verifiedAt: IsNull() })
.orWhere('verified_at < last_announced_at')
.getMany()
logger.debug(`Federation: found ${dbFederatedCommunities.length} dbCommunities`)
for (const dbCom of dbFederatedCommunities) {
logger.debug('Federation: dbCom', dbCom)
const apiValueStrings: string[] = Object.values(ApiVersionType)
logger.debug(`suppported ApiVersions=`, apiValueStrings)
if (!apiValueStrings.includes(dbCom.apiVersion)) {
logger.debug(
'Federation: dbCom with unsupported apiVersion',
dbCom.endPoint,
dbCom.apiVersion,
)
continue
}
try {
const client = FederationClientFactory.getInstance(dbCom)
// eslint-disable-next-line camelcase
if (client instanceof V1_0_FederationClient) {
const pubKey = await client.getPublicKey()
if (pubKey && pubKey === dbCom.publicKey.toString()) {
await DbFederatedCommunity.update({ id: dbCom.id }, { verifiedAt: new Date() })
logger.info(`Federation: verified community with:`, dbCom.endPoint)
const pubComInfo = await client.getPublicCommunityInfo()
if (pubComInfo) {
await writeForeignCommunity(dbCom, pubComInfo)
await startCommunityAuthentication(dbCom)
logger.debug(`Federation: write publicInfo of community: name=${pubComInfo.name}`)
} else {
logger.warn('Federation: missing result of getPublicCommunityInfo')
}
} else {
logger.warn(
'Federation: received not matching publicKey:',
pubKey,
dbCom.publicKey.toString(),
)
}
}
} catch (err) {
logger.error(`Error:`, err)
}
}
}
async function writeForeignCommunity(
dbCom: DbFederatedCommunity,
pubInfo: PublicCommunityInfo,
): Promise<void> {
if (!dbCom || !pubInfo || !(dbCom.publicKey.toString() === pubInfo.publicKey)) {
logger.error(
`Error in writeForeignCommunity: missmatching parameters or publicKey. pubInfo:${JSON.stringify(
pubInfo,
)}`,
)
} else {
let com = await DbCommunity.findOneBy({ publicKey: dbCom.publicKey })
if (!com) {
com = DbCommunity.create()
}
com.creationDate = pubInfo.creationDate
com.description = pubInfo.description
com.foreign = true
com.name = pubInfo.name
com.publicKey = dbCom.publicKey
com.url = dbCom.endPoint
await DbCommunity.save(com)
}
}