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author | Chi Kei Chan <chikeichan@gmail.com> | 2017-12-08 01:54:37 +0800 |
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committer | GitHub <noreply@github.com> | 2017-12-08 01:54:37 +0800 |
commit | 41d281a52714ad432b115d94a272156d51cd7bad (patch) | |
tree | 36c1a9ad91600f48496157b45c9fa3019206467d /old-ui/lib/contract-namer.js | |
parent | 7dba114feb428f7f2f78fee5611377b04bff5be6 (diff) | |
parent | e0d0e19c925224bddf56a4088fb9c402d995d79f (diff) | |
download | tangerine-wallet-browser-41d281a52714ad432b115d94a272156d51cd7bad.tar.gz tangerine-wallet-browser-41d281a52714ad432b115d94a272156d51cd7bad.tar.zst tangerine-wallet-browser-41d281a52714ad432b115d94a272156d51cd7bad.zip |
Merge branch 'NewUI-flat' into cb-372
Diffstat (limited to 'old-ui/lib/contract-namer.js')
-rw-r--r-- | old-ui/lib/contract-namer.js | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/old-ui/lib/contract-namer.js b/old-ui/lib/contract-namer.js new file mode 100644 index 000000000..f05e770cc --- /dev/null +++ b/old-ui/lib/contract-namer.js @@ -0,0 +1,33 @@ +/* CONTRACT NAMER + * + * Takes an address, + * Returns a nicname if we have one stored, + * otherwise returns null. + */ + +const contractMap = require('eth-contract-metadata') +const ethUtil = require('ethereumjs-util') + +module.exports = function (addr, identities = {}) { + const checksummed = ethUtil.toChecksumAddress(addr) + if (contractMap[checksummed] && contractMap[checksummed].name) { + return contractMap[checksummed].name + } + + const address = addr.toLowerCase() + const ids = hashFromIdentities(identities) + return addrFromHash(address, ids) +} + +function hashFromIdentities (identities) { + const result = {} + for (const key in identities) { + result[key] = identities[key].name + } + return result +} + +function addrFromHash (addr, hash) { + const address = addr.toLowerCase() + return hash[address] || null +} |