From 51e9ce7c91fc834138cfcb4181f5f0d38b045729 Mon Sep 17 00:00:00 2001
From: Garth Snyder <garth@garthsnyder.com>
Date: Sun, 3 Jun 2018 15:22:53 -0700
Subject: [PATCH] Terminate XML parsing as soon as a complete feed is received

---
 Sources/FeedKit/Parser/XMLFeedParser.swift | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/Sources/FeedKit/Parser/XMLFeedParser.swift b/Sources/FeedKit/Parser/XMLFeedParser.swift
index e1adbdbf..6b5837e1 100644
--- a/Sources/FeedKit/Parser/XMLFeedParser.swift
+++ b/Sources/FeedKit/Parser/XMLFeedParser.swift
@@ -60,6 +60,7 @@ class XMLFeedParser: NSObject, XMLParserDelegate, FeedParserProtocol {
     
     /// A parsing error, if any.
     var parsingError: NSError?
+    var parseComplete = false
     
     /// Starts parsing the feed.
     func parse() -> Result {
@@ -167,6 +168,10 @@ extension XMLFeedParser {
     {
         // Update the current path along the XML's DOM elements by deleting last component.
         self.currentXMLDOMPath = self.currentXMLDOMPath.deletingLastPathComponent()
+        if currentXMLDOMPath.absoluteString == "/" {
+            parseComplete = true
+            xmlParser.abortParsing()
+        }
     }
     
     func parser(_ parser: XMLParser, foundCDATA CDATABlock: Data)
@@ -184,7 +189,12 @@ extension XMLFeedParser {
     }
     
     func parser(_ parser: XMLParser, parseErrorOccurred parseError: Error) {
-        self.parsingError = NSError(domain: parseError.localizedDescription, code: -1)
+        // Ignore errors that occur after a feed is successfully parsed. Some
+        // real-world feeds contain junk such as "[]" after the XML segment;
+        // just ignore this stuff.
+        guard !parseComplete, parsingError == nil else { return }
+        self.parsingError = NSError(domain: parseError.localizedDescription, code: -1,
+            userInfo: ["CurrentPath": currentXMLDOMPath.absoluteString])
     }
     
 }