From 6f7ce392ff47468f6ac364ad7ec7759bbe42b63e Mon Sep 17 00:00:00 2001
From: Yarmo Mackenbach <yarmo@yarmo.eu>
Date: Fri, 6 Oct 2023 21:30:17 +0200
Subject: [PATCH] feat: support HTML alias

---
 package.json   |  1 +
 src/index.js   |  1 +
 src/profile.js | 50 +++++++++++++++++++++++++++++++++++
 yarn.lock      | 71 ++++++++++++++++++++++++++++++++++++++++++++++++++
 4 files changed, 123 insertions(+)

diff --git a/package.json b/package.json
index 2827d46..81f622b 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,7 @@
     "irc-upd": "^0.11.0",
     "jose": "^4.14.4",
     "merge-options": "^3.0.3",
+    "node-html-parser": "^6.1.10",
     "openpgp": "^5.5.0",
     "rfc4648": "^1.5.2",
     "valid-url": "^1.0.9",
diff --git a/src/index.js b/src/index.js
index ec2d94f..fbe6b66 100644
--- a/src/index.js
+++ b/src/index.js
@@ -17,6 +17,7 @@ export { Profile } from './profile.js'
 export { Persona } from './persona.js'
 export { Claim } from './claim.js'
 export { ServiceProvider } from './serviceProvider.js'
+export * as profile from './profile.js'
 export * as ServiceProviderDefinitions from './serviceProviders/index.js'
 export * as proofs from './proofs.js'
 export * as openpgp from './openpgp.js'
diff --git a/src/profile.js b/src/profile.js
index 698d09c..0eb7676 100644
--- a/src/profile.js
+++ b/src/profile.js
@@ -13,8 +13,11 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
 */
+import isFQDN from 'validator/lib/isFQDN.js'
+import { parse } from 'node-html-parser'
 import { PublicKeyFetchMethod, PublicKeyEncoding, PublicKeyType } from './enums.js'
 import { Persona } from './persona.js'
+import { fetchASPE } from './asp.js'
 
 /**
  * A profile of personas with identity claims
@@ -222,3 +225,50 @@ function importJsonProfileVersion2 (profileObject) {
 
   return profile
 }
+
+/**
+ * Resolve a profile identifier and return a [Profile]
+ * @param {string} id
+ * @returns {Promise<Profile | null>}
+ */
+export async function resolve (id) {
+  /** @type {string | null} */
+  let aliasedId = null
+
+  // Attempt resolving as alias
+  if (isFQDN(id)) {
+    aliasedId = await resolveToAlias(id)
+  }
+
+  const finalId = aliasedId ?? id
+
+  // Attempting resolving as ASPE
+  if (/^aspe:(:?.*)/.test(finalId)) {
+    return await fetchASPE(finalId)
+  }
+
+  return null
+}
+
+/**
+ * @param {string} id
+ * @returns {Promise<string | null>}
+ */
+async function resolveToAlias (id) {
+  const url = new URL(`https://${id}`)
+  const res = await fetch(url)
+    .then(async res => {
+      if (res.status >= 400) return null
+      return await res.text()
+    })
+    .catch(_ => null)
+
+  if (!res) return null
+
+  const dom = parse(res)
+  const meta = dom.querySelector('meta[name="ariadne-profile-id"]')
+
+  if (!meta) return null
+
+  return meta.attributes.content
+}
diff --git a/yarn.lock b/yarn.lock
index b34c554..f0befb4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1020,6 +1020,11 @@ body-parser@1.20.1:
     type-is "~1.6.18"
     unpipe "1.0.0"
 
+boolbase@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/boolbase/-/boolbase-1.0.0.tgz#68dff5fbe60c51eb37725ea9e3ed310dcc1e776e"
+  integrity sha512-JZOSA7Mo9sNGB8+UjSgzdLtokWAky1zbztM3WRLCbZ70/3cTANmQmOdR7y2g+J0e2WXywy1yS468tY+IruqEww==
+
 brace-expansion@^1.1.7:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
@@ -1426,6 +1431,22 @@ css-b64-images@~0.2.5:
   resolved "https://registry.yarnpkg.com/css-b64-images/-/css-b64-images-0.2.5.tgz#42005d83204b2b4a5d93b6b1a5644133b5927a02"
   integrity sha512-TgQBEdP07adhrDfXvI5o6bHGukKBNMzp2Ngckc/6d09zpjD2gc1Hl3Ca1CKgb8FXjHi88+Phv2Uegs2kTL4zjg==
 
+css-select@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/css-select/-/css-select-5.1.0.tgz#b8ebd6554c3637ccc76688804ad3f6a6fdaea8a6"
+  integrity sha512-nwoRF1rvRRnnCqqY7updORDsuqKzqYJ28+oSMaJMMgOauh3fvwHqMS7EZpIPqK8GL+g9mKxF1vP/ZjSeNjEVHg==
+  dependencies:
+    boolbase "^1.0.0"
+    css-what "^6.1.0"
+    domhandler "^5.0.2"
+    domutils "^3.0.1"
+    nth-check "^2.0.1"
+
+css-what@^6.1.0:
+  version "6.1.0"
+  resolved "https://registry.yarnpkg.com/css-what/-/css-what-6.1.0.tgz#fb5effcf76f1ddea2c81bdfaa4de44e79bac70f4"
+  integrity sha512-HTUrgRJ7r4dsZKU6GjmpfRK1O76h97Z8MfS1G0FozR+oF2kG6Vfe8JE6zwrkbxigziPHinCJ+gCPjA9EaBDtRw==
+
 debug@2.6.9:
   version "2.6.9"
   resolved "https://registry.yarnpkg.com/debug/-/debug-2.6.9.tgz#5d128515df134ff327e90a4c93f4e077a536341f"
@@ -1530,6 +1551,36 @@ doctrine@^3.0.0:
   dependencies:
     esutils "^2.0.2"
 
+dom-serializer@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-2.0.0.tgz#e41b802e1eedf9f6cae183ce5e622d789d7d8e53"
+  integrity sha512-wIkAryiqt/nV5EQKqQpo3SToSOV9J0DnbJqwK7Wv/Trc92zIAYZ4FlMu+JPFW1DfGFt81ZTCGgDEabffXeLyJg==
+  dependencies:
+    domelementtype "^2.3.0"
+    domhandler "^5.0.2"
+    entities "^4.2.0"
+
+domelementtype@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-2.3.0.tgz#5c45e8e869952626331d7aab326d01daf65d589d"
+  integrity sha512-OLETBj6w0OsagBwdXnPdN0cnMfF9opN69co+7ZrbfPGrdpPVNBUj02spi6B1N7wChLQiPn4CSH/zJvXw56gmHw==
+
+domhandler@^5.0.2, domhandler@^5.0.3:
+  version "5.0.3"
+  resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-5.0.3.tgz#cc385f7f751f1d1fc650c21374804254538c7d31"
+  integrity sha512-cgwlv/1iFQiFnU96XXgROh8xTeetsnJiDsTc7TYCLFd9+/WNkIqPTxiM/8pSd8VIrhXGTf1Ny1q1hquVqDJB5w==
+  dependencies:
+    domelementtype "^2.3.0"
+
+domutils@^3.0.1:
+  version "3.1.0"
+  resolved "https://registry.yarnpkg.com/domutils/-/domutils-3.1.0.tgz#c47f551278d3dc4b0b1ab8cbb42d751a6f0d824e"
+  integrity sha512-H78uMmQtI2AhgDJjWeQmHwJJ2bLPD3GMmO7Zja/ZZh84wkm+4ut+IUnUdRa8uCGX88DiVx1j6FRe1XfxEgjEZA==
+  dependencies:
+    dom-serializer "^2.0.0"
+    domelementtype "^2.3.0"
+    domhandler "^5.0.3"
+
 dot-case@^3.0.4:
   version "3.0.4"
   resolved "https://registry.yarnpkg.com/dot-case/-/dot-case-3.0.4.tgz#9b2b670d00a431667a8a75ba29cd1b98809ce751"
@@ -1570,6 +1621,11 @@ enquirer@^2.3.6:
   dependencies:
     ansi-colors "^4.1.1"
 
+entities@^4.2.0:
+  version "4.5.0"
+  resolved "https://registry.yarnpkg.com/entities/-/entities-4.5.0.tgz#5d268ea5e7113ec74c4d033b79ea5a35a488fb48"
+  integrity sha512-V0hjH4dGPh9Ao5p0MoRY6BVqtwCjhz6vI5LT8AJ55H+4g9/4vbHx1I54fS0XuclLhDHArPQCiMjDxjaL8fPxhw==
+
 entities@^4.4.0:
   version "4.4.0"
   resolved "https://registry.yarnpkg.com/entities/-/entities-4.4.0.tgz#97bdaba170339446495e653cfd2db78962900174"
@@ -3202,6 +3258,14 @@ node-fetch@^2.6.1, node-fetch@^2.6.6:
   dependencies:
     whatwg-url "^5.0.0"
 
+node-html-parser@^6.1.10:
+  version "6.1.10"
+  resolved "https://registry.yarnpkg.com/node-html-parser/-/node-html-parser-6.1.10.tgz#5db11eac3ccbea6fc1b04a22c8a0e3a0774cfae6"
+  integrity sha512-6/uWdWxjQWQ7tMcFK2wWlrflsQUzh1HsEzlIf2j5+TtzfhT2yUvg3DwZYAmjEHeR3uX74ko7exjHW69J0tOzIg==
+  dependencies:
+    css-select "^5.1.0"
+    he "1.2.0"
+
 node-releases@^2.0.8:
   version "2.0.10"
   resolved "https://registry.yarnpkg.com/node-releases/-/node-releases-2.0.10.tgz#c311ebae3b6a148c89b1813fd7c4d3c024ef537f"
@@ -3242,6 +3306,13 @@ npm-run-path@^4.0.1:
   dependencies:
     path-key "^3.0.0"
 
+nth-check@^2.0.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-2.1.1.tgz#c9eab428effce36cd6b92c924bdb000ef1f1ed1d"
+  integrity sha512-lqjrjmaOoAnWfMmBPL+XNnynZh2+swxiX3WUE0s4yEHI6m+AwrK2UZOimIRl3X/4QctVqS8AiZjFqyOGrMXb/w==
+  dependencies:
+    boolbase "^1.0.0"
+
 object-assign@^4:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"