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Handle escape characters in template node which uses Mustache format and JSON output mode (#1377)

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* Handle escape characters in template node which uses Mustache format and JSON output mode

* Handle escape characters in template node which uses Mustache format and JSON output mode
This commit is contained in:
Kazuhito Yokoi
2017-09-21 21:38:45 +09:00
committed by Nick O'Leary
parent 6ce761edda
commit ef53dca062
2 changed files with 27 additions and 2 deletions
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17
nodes/core/core/80-template.js
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@@ -22,9 +22,10 @@ module.exports = function(RED) {
* Custom Mustache Context capable to resolve message property and node
* flow and global context
*/
function NodeContext(msg, nodeContext,parent) {
function NodeContext(msg, nodeContext, parent, escapeStrings) {
this.msgContext = new mustache.Context(msg,parent);
this.nodeContext = nodeContext;
this.escapeStrings = escapeStrings;
}
NodeContext.prototype = new mustache.Context();
@@ -34,6 +35,14 @@ module.exports = function(RED) {
try {
var value = this.msgContext.lookup(name);
if (value !== undefined) {
if (this.escapeStrings && typeof value === "string") {
value = value.replace(/\\/g, "\\\\");
value = value.replace(/\n/g, "\\n");
value = value.replace(/\t/g, "\\t");
value = value.replace(/\r/g, "\\r");
value = value.replace(/\f/g, "\\f");
value = value.replace(/[\b]/g, "\\b");
}
return value;
}
@@ -73,7 +82,11 @@ module.exports = function(RED) {
try {
var value;
if (node.syntax === "mustache") {
value = mustache.render(node.template,new NodeContext(msg, node.context()));
if (node.outputFormat === "json") {
value = mustache.render(node.template,new NodeContext(msg, node.context(), null, true));
} else {
value = mustache.render(node.template,new NodeContext(msg, node.context(), null, false));
}
} else {
value = node.template;
}