fix: Do not pass scp-style URLs to the WhatWG url.URL

Fix #60

PR-URL: #63
Credit: @isaacs
Close: #63
Reviewed-by: @isaacs

index.js

@@ -109,9 +109,22 @@ function parseGitUrl (giturl) {
   if (!matched) {
     var legacy = url.parse(giturl)
     if (legacy.auth) {
-      var whatwg = new url.URL(giturl)
-      legacy.auth = whatwg.username || ''
-      if (whatwg.password) legacy.auth += ':' + whatwg.password
+      // git urls can be in the form of scp-style/ssh-connect strings, like
+      // git+ssh://user@host.com:some/path, which the legacy url parser
+      // supports, but WhatWG url.URL class does not.  However, the legacy
+      // parser de-urlencodes the username and password, so something like
+      // https://user%3An%40me:p%40ss%3Aword@x.com/ becomes
+      // https://user:n@me:p@ss:word@x.com/ which is all kinds of wrong.
+      // Pull off just the auth and host, so we dont' get the confusing
+      // scp-style URL, then pass that to the WhatWG parser to get the
+      // auth properly escaped.
+      const authmatch = giturl.match(/[^@]+@[^:/]+/)
+      /* istanbul ignore else - this should be impossible */
+      if (authmatch) {
+        var whatwg = new url.URL(authmatch[0])
+        legacy.auth = whatwg.username || ''
+        if (whatwg.password) legacy.auth += ':' + whatwg.password
+      }
     }
     return legacy
   }

package.json

@@ -22,7 +22,7 @@
   "scripts": {
     "prerelease": "npm t",
     "postrelease": "npm publish && git push --follow-tags",
-    "pretest": "standard",
+    "posttest": "standard",
     "release": "standard-version -s",
     "test:coverage": "tap --coverage-report=html -J --100 --no-esm test/*.js",
     "test": "tap -J --100 --no-esm test/*.js"

test/basic.js

@@ -37,6 +37,8 @@ test('basic', function (t) {
   t.is(HostedGit.fromUrl('github.com/abc/def/'), undefined, 'forgot the protocol')
   t.is(HostedGit.fromUrl('completely-invalid'), undefined, 'not a url is not hosted')
 
+  t.is(HostedGit.fromUrl('git+ssh://git@git.unlucky.com:RND/electron-tools/some-tool#2.0.1'), undefined, 'properly ignores non-hosted scp style urls')
+
   t.is(HostedGit.fromUrl('http://github.com/foo/bar').toString(), 'git+ssh://git@github.com/foo/bar.git', 'github http protocol use git+ssh urls')
   t.end()
 })