From 39c18ab1842bdf4579d5a5a7cec6ef515a62d869 Mon Sep 17 00:00:00 2001
From: tigerbot <seth.gibelyou@daplie.com>
Date: Fri, 28 Jul 2017 16:27:52 -0600
Subject: [PATCH] added hooks to store key pairs in localStorage

---
 oauth3.issuer.js | 91 ++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)

diff --git a/oauth3.issuer.js b/oauth3.issuer.js
index d45c1e1..19deb22 100644
--- a/oauth3.issuer.js
+++ b/oauth3.issuer.js
@@ -495,6 +495,7 @@ OAUTH3.requests.accounts.create = function (directive, session, account) {
   , data: data
   });
 };
+
 OAUTH3.hooks.grants = {
   // Provider Only
   set: function (clientUri, newGrants) {
@@ -516,6 +517,96 @@ OAUTH3.hooks.grants = {
     return this._cache[clientUri];
   }
 };
+OAUTH3.hooks.keyPairs = {
+  set: function (id, keyPair) {
+    if (!keyPair && id.privateKey && id.publicKey && id.sub) {
+      keyPair = id;
+      id = keyPair.sub;
+    }
+    if (!keyPair) {
+      return OAUTH3.PromiseA.reject(new Error("no key pair provided to save"));
+    }
+
+    if (OAUTH3._hooks && OAUTH3._hooks.keyPairs && OAUTH3._hooks.keyPairs.set) {
+      return OAUTH3._hooks.keyPairs.set(id, keyPair);
+    }
+
+    if (!OAUTH3.hooks.keyPairs._warned) { OAUTH3.hooks.keyPairs._warned = {}; }
+    if (!OAUTH3.hooks.keyPairs._warned.set) {
+      console.warn('[Warn] Please implement OAUTH3._hooks.keyPairs.set = function (id, keyPair) { return PromiseA<keyPair>; }');
+      OAUTH3.hooks.keyPairs._warned.set = true;
+    }
+
+    window.localStorage.setItem('key_pair-'+id, JSON.stringify(keyPair));
+    return OAUTH3.PromiseA.resolve(keyPair);
+  }
+, get: function (id) {
+    if (OAUTH3._hooks && OAUTH3._hooks.keyPairs && OAUTH3._hooks.keyPairs.get) {
+      return OAUTH3._hooks.keyPairs.get(id);
+    }
+
+    if (!OAUTH3.hooks.keyPairs._warned) { OAUTH3.hooks.keyPairs._warned = {}; }
+    if (!OAUTH3.hooks.keyPairs._warned.get) {
+      console.warn('[Warn] Please implement OAUTH3._hooks.keyPairs.get = function (id) { return PromiseA<keyPair>; }');
+      OAUTH3.hooks.keyPairs._warned.get = true;
+    }
+
+    return OAUTH3.PromiseA.resolve().then(function () {
+      return window.localStorage.getItem('key_pair-'+id) || 'null';
+    }).then(JSON.parse);
+  }
+, _get_all_keys: function () {
+    var pattern = /^key_pair-/;
+    var matching = [];
+    var ind, key;
+    for (ind = 0; ind < window.localStorage.length; ind++) {
+      key = window.localStorage.key(ind);
+      if (pattern.test(key)) {
+        matching.push(key);
+      }
+    }
+    return matching;
+  }
+, all: function () {
+    if (OAUTH3._hooks && OAUTH3._hooks.keyPairs && OAUTH3._hooks.keyPairs.all) {
+      return OAUTH3._hooks.keyPairs.all();
+    }
+
+    if (!OAUTH3.hooks.keyPairs._warned) { OAUTH3.hooks.keyPairs._warned = {}; }
+    if (!OAUTH3.hooks.keyPairs._warned.all) {
+      console.warn('[Warn] Please implement OAUTH3._hooks.keyPairs.all = function (id) { return PromiseA<keyPair>; }');
+      OAUTH3.hooks.keyPairs._warned.all = true;
+    }
+
+    var result = {};
+    OAUTH3.hooks.keyPairs._get_all_keys().forEach(function (key) {
+      var id = key.replace('key_pair-', '');
+      try {
+        result[id] = JSON.parse(window.localStorage.getItem(key));
+      } catch (err) {
+        console.error('failed to parse key', key, err);
+        window.localStorage.removeItem(key);
+      }
+    });
+    return OAUTH3.PromiseA.resolve(result);
+  }
+, clear: function () {
+    if (OAUTH3._hooks && OAUTH3._hooks.keyPairs && OAUTH3._hooks.keyPairs.clear) {
+      return OAUTH3._hooks.keyPairs.clear();
+    }
+
+    if (!OAUTH3.hooks.keyPairs._warned) { OAUTH3.hooks.keyPairs._warned = {}; }
+    if (!OAUTH3.hooks.keyPairs._warned.clear) {
+      console.warn('[Warn] Please implement OAUTH3._hooks.keyPairs.clear = function (id) { return PromiseA<>; }');
+      OAUTH3.hooks.keyPairs._warned.clear = true;
+    }
+
+    OAUTH3.hooks.keyPairs._get_all_keys().forEach(function (key) {
+      window.localStorage.removeItem(key);
+    });
+    return OAUTH3.PromiseA.resolve();
+  }
+};
 
 OAUTH3._browser.isIframe = function isIframe () {
   try {