refactor: remove multibase check

#20 (comment)

README.md

@@ -44,11 +44,6 @@ const isIPFS = require('is-ipfs')
 isIPFS.multihash('QmYjtig7VJQ6XsnUjqqJvj7QaMcCAwtrgNdahSiFofrE7o') // true
 isIPFS.multihash('noop') // false
 
-isIPFS.multibase('bafybeie5gq4jxvzmsym6hjlwxej4rwdoxt7wadqvmmwbqi7r27fclha2va') // 'base32'
-isIPFS.multibase('zdj7WWeQ43G6JJvLWQWZpyHuAMq6uYWRjkBXFad11vE2LHhQ7') // 'base58btc'
-isIPFS.multibase('QmYjtig7VJQ6XsnUjqqJvj7QaMcCAwtrgNdahSiFofrE7o') // false (no multibase prefix in CIDv0)
-isIPFS.multibase('noop') // false
-
 isIPFS.cid('QmYjtig7VJQ6XsnUjqqJvj7QaMcCAwtrgNdahSiFofrE7o') // true (CIDv0)
 isIPFS.cid('zdj7WWeQ43G6JJvLWQWZpyHuAMq6uYWRjkBXFad11vE2LHhQ7') // true (CIDv1)
 isIPFS.cid('noop') // false
@@ -83,6 +78,7 @@ isIPFS.ipfsPath('/ipfs/invalid-hash') // false
 isIPFS.ipnsPath('/ipfs/QmYjtig7VJQ6XsnUjqqJvj7QaMcCAwtrgNdahSiFofrE7o') // false
 isIPFS.ipnsPath('/ipns/github.com') // true
 
+isIPFS.subdomain('http://bafybeie5gq4jxvzmsym6hjlwxej4rwdoxt7wadqvmmwbqi7r27fclha2va.ipfs.dweb.link') // true
 isIPFS.subdomain('http://bafybeiabc2xofh6tdi6vutusorpumwcikw3hf3st4ecjugo6j52f6xwc6q.ipns.dweb.link') // true
 isIPFS.subdomain('http://www.bafybeie5gq4jxvzmsym6hjlwxej4rwdoxt7wadqvmmwbqi7r27fclha2va.ipfs.dweb.link') // false
 isIPFS.subdomain('http://bafybeie5gq4jxvzmsym6hjlwxej4rwdoxt7wadqvmmwbqi7r27fclha2va.dweb.link') // false

package.json

@@ -31,7 +31,6 @@
   "dependencies": {
     "bs58": "4.0.1",
     "cids": "0.5.3",
-    "multibase": "0.4.0",
     "multihashes": "0.4.13"
   },
   "devDependencies": {

src/index.js

@@ -108,7 +108,6 @@ function convertToString (input) {
 
 module.exports = {
   multihash: isMultihash,
-  multibase: isMultibase,
   cid: isCID,
   base32cid: (cid) => (isMultibase(cid) === 'base32' && isCID(cid)),
   ipfsSubdomain: (url) => isIpfs(url, fqdnPattern, fqdnProtocolMatch, fqdnHashMatch),

test/test-cid.spec.js

@@ -60,3 +60,41 @@ describe('ipfs cid', () => {
     done()
   })
 })
+
+describe('ipfs base32cid', () => {
+  it('isIPFS.base32cid should not match a valid CIDv0 (multihash in base58btc)', (done) => {
+    const actual = isIPFS.base32cid('QmYjtig7VJQ6XsnUjqqJvj7QaMcCAwtrgNdahSiFofrE7o')
+    expect(actual).to.equal(false)
+    done()
+  })
+
+  it('isIPFS.base32cid should not match a valid CIDv1 in base58btc', (done) => {
+    const actual = isIPFS.cid('zdj7WWeQ43G6JJvLWQWZpyHuAMq6uYWRjkBXFad11vE2LHhQ7')
+    expect(actual).to.equal(true)
+    done()
+  })
+
+  it('isIPFS.base32cid should match a valid URL-safe CIDv1 in Base32', (done) => {
+    const actual = isIPFS.base32cid('bafybeie5gq4jxvzmsym6hjlwxej4rwdoxt7wadqvmmwbqi7r27fclha2va')
+    expect(actual).to.equal(true)
+    done()
+  })
+
+  it('isIPFS.base32cid should not match an invalid CID (with a typo)', (done) => {
+    const actual = isIPFS.base32cid('afybeie5gq4jxvzmsym6hjlwxej4rwdoxt7wadqvmmwbqi7r27fclha2va')
+    expect(actual).to.equal(false)
+    done()
+  })
+
+  it('isIPFS.base32cid should not match an invalid CID', (done) => {
+    const actual = isIPFS.base32cid('noop')
+    expect(actual).to.equal(false)
+    done()
+  })
+
+  it('isIPFS.base32cid should not match an invalid CID data type', (done) => {
+    const actual = isIPFS.base32cid(4)
+    expect(actual).to.equal(false)
+    done()
+  })
+})