45 lines
1.4 KiB
Nim
45 lines
1.4 KiB
Nim
import ens, provider
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import stew/byteutils
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from base32 import nil
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import chronicles, httpclient, net
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import nbaser, strutils
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import semver
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import constants
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type
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VersionInfo* = object
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version*: string
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url*: string
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proc getLatestVersion*(): VersionInfo =
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let contentHash = contenthash(APP_UPDATES_ENS)
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if contentHash == "":
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raise newException(ValueError, "ENS does not have a content hash")
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var url: string = ""
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let decodedHash = contentHash.decodeENSContentHash()
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case decodedHash[0]:
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of ENSType.IPFS:
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let base32Hash = base32.encode(string.fromBytes(base58.decode(decodedHash[1]))).toLowerAscii().replace("=", "")
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url = "https://" & base32Hash & IPFS_GATEWAY
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of ENSType.SWARM:
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url = "https://" & SWARM_GATEWAY & "/bzz:/" & decodedHash[1]
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of ENSType.IPNS:
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url = "https://" & decodedHash[1]
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else:
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warn "Unknown content for", contentHash
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raise newException(ValueError, "Unknown content for " & contentHash)
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# Read version from folder
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let secureSSLContext = newContext()
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let client = newHttpClient(sslContext = secureSSLContext, timeout = CHECK_VERSION_TIMEOUT_MS)
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result.version = client.getContent(url & "/VERSION").strip()
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result.url = url
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proc isNewer*(currentVersion, versionToCheck: string): bool =
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let lastVersion = parseVersion(versionToCheck)
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let currVersion = parseVersion(currentVersion)
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result = lastVersion > currVersion
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