From e26f272746405ad929a13a56340dea84d42276b8 Mon Sep 17 00:00:00 2001
From: mike12345567 <me@michaeldrury.co.uk>
Date: Tue, 27 Oct 2020 13:19:38 +0000
Subject: [PATCH] Switching from mustache to handlebars for automations as
 allows configuring helpers, e.g. parsing object.

---
 packages/server/package.json              |  1 +
 packages/server/src/automations/thread.js |  9 ++++++--
 packages/server/yarn.lock                 | 27 +++++++++++++++++++++++
 3 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/packages/server/package.json b/packages/server/package.json
index 1d96038355..cf9a4fbd55 100644
--- a/packages/server/package.json
+++ b/packages/server/package.json
@@ -58,6 +58,7 @@
     "electron-updater": "^4.3.1",
     "fix-path": "^3.0.0",
     "fs-extra": "^8.1.0",
+    "handlebars": "^4.7.6",
     "jimp": "^0.16.1",
     "joi": "^17.2.1",
     "jsonschema": "^1.4.0",
diff --git a/packages/server/src/automations/thread.js b/packages/server/src/automations/thread.js
index 5362597cfd..6b29fce1c1 100644
--- a/packages/server/src/automations/thread.js
+++ b/packages/server/src/automations/thread.js
@@ -1,8 +1,12 @@
-const mustache = require("mustache")
+const handlebars = require("handlebars")
 const actions = require("./actions")
 const logic = require("./logic")
 const automationUtils = require("./automationUtils")
 
+handlebars.registerHelper("object", value => {
+  return new handlebars.SafeString(JSON.stringify(value))
+})
+
 const FILTER_STEP_ID = logic.BUILTIN_DEFINITIONS.FILTER.stepId
 
 function recurseMustache(inputs, context) {
@@ -10,7 +14,8 @@ function recurseMustache(inputs, context) {
     let val = inputs[key]
     if (typeof val === "string") {
       val = automationUtils.cleanMustache(inputs[key])
-      inputs[key] = mustache.render(val, context)
+      const template = handlebars.compile(val)
+      inputs[key] = template(context)
     }
     // this covers objects and arrays
     else if (typeof val === "object") {
diff --git a/packages/server/yarn.lock b/packages/server/yarn.lock
index 93ea581e97..1e28e09ece 100644
--- a/packages/server/yarn.lock
+++ b/packages/server/yarn.lock
@@ -3494,6 +3494,18 @@ growly@^1.3.0:
   resolved "https://registry.yarnpkg.com/growly/-/growly-1.3.0.tgz#f10748cbe76af964b7c96c93c6bcc28af120c081"
   integrity sha1-8QdIy+dq+WS3yWyTxrzCivEgwIE=
 
+handlebars@^4.7.6:
+  version "4.7.6"
+  resolved "https://registry.yarnpkg.com/handlebars/-/handlebars-4.7.6.tgz#d4c05c1baf90e9945f77aa68a7a219aa4a7df74e"
+  integrity sha512-1f2BACcBfiwAfStCKZNrUCgqNZkGsAT7UM3kkYtXuLo0KnaVfjKOyf7PRzB6++aK9STyT1Pd2ZCPe3EGOXleXA==
+  dependencies:
+    minimist "^1.2.5"
+    neo-async "^2.6.0"
+    source-map "^0.6.1"
+    wordwrap "^1.0.0"
+  optionalDependencies:
+    uglify-js "^3.1.4"
+
 har-schema@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/har-schema/-/har-schema-2.0.0.tgz#a94c2224ebcac04782a0d9035521f24735b7ec92"
@@ -5511,6 +5523,11 @@ negotiator@0.6.2:
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.2.tgz#feacf7ccf525a77ae9634436a64883ffeca346fb"
   integrity sha512-hZXc7K2e+PgeI1eDBe/10Ard4ekbfrrqG8Ep+8Jmf4JID2bNg7NvCPOZN+kfF574pFQI7mum2AUqDidoKqcTOw==
 
+neo-async@^2.6.0:
+  version "2.6.2"
+  resolved "https://registry.yarnpkg.com/neo-async/-/neo-async-2.6.2.tgz#b4aafb93e3aeb2d8174ca53cf163ab7d7308305f"
+  integrity sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw==
+
 nice-try@^1.0.4:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.5.tgz#a3378a7696ce7d223e88fc9b764bd7ef1089e366"
@@ -7686,6 +7703,11 @@ typedarray@^0.0.6:
   resolved "https://registry.yarnpkg.com/typedarray/-/typedarray-0.0.6.tgz#867ac74e3864187b1d3d47d996a78ec5c8830777"
   integrity sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=
 
+uglify-js@^3.1.4:
+  version "3.11.4"
+  resolved "https://registry.yarnpkg.com/uglify-js/-/uglify-js-3.11.4.tgz#b47b7ae99d4bd1dca65b53aaa69caa0909e6fadf"
+  integrity sha512-FyYnoxVL1D6+jDGQpbK5jW6y/2JlVfRfEeQ67BPCUg5wfCjaKOpr2XeceE4QL+MkhxliLtf5EbrMDZgzpt2CNw==
+
 unbzip2-stream@^1.0.9:
   version "1.4.3"
   resolved "https://registry.yarnpkg.com/unbzip2-stream/-/unbzip2-stream-1.4.3.tgz#b0da04c4371311df771cdc215e87f2130991ace7"
@@ -7996,6 +8018,11 @@ word-wrap@~1.2.3:
   resolved "https://registry.yarnpkg.com/word-wrap/-/word-wrap-1.2.3.tgz#610636f6b1f703891bd34771ccb17fb93b47079c"
   integrity sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ==
 
+wordwrap@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/wordwrap/-/wordwrap-1.0.0.tgz#27584810891456a4171c8d0226441ade90cbcaeb"
+  integrity sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus=
+
 worker-farm@^1.7.0:
   version "1.7.0"
   resolved "https://registry.yarnpkg.com/worker-farm/-/worker-farm-1.7.0.tgz#26a94c5391bbca926152002f69b84a4bf772e5a8"