From 32e5008c18bed355e5a885c9a8582e8f92e5da0f Mon Sep 17 00:00:00 2001
From: tomsmeding <tom.smeding@gmail.com>
Date: Mon, 5 Dec 2016 19:49:35 +0100
Subject: changes: enable support for multiple mail targets

---
 modules/changes/changes.js | 35 +++++++++++++++++++++--------------
 1 file changed, 21 insertions(+), 14 deletions(-)

diff --git a/modules/changes/changes.js b/modules/changes/changes.js
index 49e2420..dde20da 100644
--- a/modules/changes/changes.js
+++ b/modules/changes/changes.js
@@ -182,21 +182,28 @@ function collectLastHashes(){
 	return lasthashes;
 }
 
-function sendMail(tomail,body,cb){
-	var proc=child_process.spawn("sendmail",[tomail],{stdio:["pipe",process.stdout,process.stderr]});
-	proc.stdin.on("error",function(e){
-		console.log(e);
-		cb(e);
-	});
-	proc.stdin.write(body,function(){
-		proc.stdin.end();
-		cb();
-	});
+function sendMail(tomails,body,cb){
+	if(typeof tomails=="string")tomails=[tomails];
+	else if(!Array.isArray(tomails)){
+		throw new Error("tomails argument in sendMail not an array!");
+	}
+	var i;
+	for(i=0;i<tomails.length;i++){
+		var proc=child_process.spawn("sendmail",[tomails[i]],{stdio:["pipe",process.stdout,process.stderr]});
+		proc.stdin.on("error",function(e){
+			console.log(e);
+			cb(e);
+		});
+		proc.stdin.write("To: "+tomails[i]+"\n"+body,function(){
+			proc.stdin.end();
+			cb();
+		});
+		//process will linger till it's finished
+	}
 }
 
-function constructMailBody(tomail,diffs){
-	var body="To: "+tomail+"\n"+
-	         "From: changes <changes_module@tomsmeding.com>\n"+
+function constructMailBody(diffs){
+	var body="From: changes <changes_module@tomsmeding.com>\n"+
 	         "Subject: changes notification mail\n\n"+
 	         "The changes module recorded some changes in watched webpages.\n"+
 	         "The URLs and their old and new content hashes are shown below.\n\n";
@@ -229,7 +236,7 @@ function performNotify(settings,cb){
 		}
 		console.log("performNotify: diffs = "+JSON.stringify(diffs));
 		if(diffs.length!=0){
-			sendMail(settings.to,constructMailBody(settings.to,diffs),cb);
+			sendMail(settings.to,constructMailBody(diffs),cb);
 		} else {
 			cb();
 		}
-- 
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