From 171bc83ec0bde275602d6545255d83400a36093d Mon Sep 17 00:00:00 2001
From: Peter Surda <surda@economicsofbitcoin.com>
Date: Tue, 28 Feb 2017 22:47:56 +0100
Subject: [PATCH] HTML parser fix

- URLs followed with space were broken
---
 src/bitmessageqt/safehtmlparser.py | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)

diff --git a/src/bitmessageqt/safehtmlparser.py b/src/bitmessageqt/safehtmlparser.py
index aa935785..a78991d3 100644
--- a/src/bitmessageqt/safehtmlparser.py
+++ b/src/bitmessageqt/safehtmlparser.py
@@ -19,15 +19,22 @@ class SafeHTMLParser(HTMLParser):
                            'small', 'sound', 'source', 'spacer', 'span', 'strike', 'strong',
                            'sub', 'sup', 'table', 'tbody', 'td', 'textarea', 'time', 'tfoot',
                            'th', 'thead', 'tr', 'tt', 'u', 'ul', 'var', 'video']
-    replaces = [["&", "&amp;"], ["\"", "&quot;"], ["<", "&lt;"], [">", "&gt;"], ["\n", "<br/>"], ["\t", "&nbsp;&nbsp;&nbsp;&nbsp;"], ["  ", "&nbsp; "], ["  ", "&nbsp; "], ["<br/> ", "<br/>&nbsp;"]]
+    replaces_pre = [["&", "&amp;"], ["\"", "&quot;"], ["<", "&lt;"], [">", "&gt;"]]
+    replaces_post = [["\n", "<br/>"], ["\t", "&nbsp;&nbsp;&nbsp;&nbsp;"], ["  ", "&nbsp; "], ["  ", "&nbsp; "], ["<br/> ", "<br/>&nbsp;"]]
     src_schemes = [ "data" ]
     uriregex1 = re.compile(r'(?i)\b((?:(https?|ftp|bitcoin):(?:/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}/)(?:[^\s()<>]+|\(([^\s()<>]+|(\([^\s()<>]+\)))*\))+(?:\(([^\s()<>]+|(\([^\s()<>]+\)))*\)|[^\s`!()\[\]{};:\'".,<>?]))')
     uriregex2 = re.compile(r'<a href="([^"]+)&amp;')
     emailregex = re.compile(r'\b([A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Za-z]{2,})\b')
 
     @staticmethod
-    def multi_replace(text):
-        for a in SafeHTMLParser.replaces:
+    def replace_pre(text):
+        for a in SafeHTMLParser.replaces_pre:
+            text = text.replace(a[0], a[1])
+        return text
+
+    @staticmethod
+    def replace_post(text):
+        for a in SafeHTMLParser.replaces_post:
             text = text.replace(a[0], a[1])
         if len(text) > 1 and text[0] == " ":
             text = "&nbsp;" + text[1:]
@@ -95,12 +102,13 @@ class SafeHTMLParser(HTMLParser):
         except UnicodeDecodeError:
             data = unicode(data, 'utf-8', errors='replace')
         HTMLParser.feed(self, data)
-        tmp = SafeHTMLParser.multi_replace(data)
+        tmp = SafeHTMLParser.replace_pre(data)
         tmp = SafeHTMLParser.uriregex1.sub(
             r'<a href="\1">\1</a>',
             tmp)
         tmp = SafeHTMLParser.uriregex2.sub(r'<a href="\1&', tmp)
         tmp = SafeHTMLParser.emailregex.sub(r'<a href="mailto:\1">\1</a>', tmp)
+        tmp = SafeHTMLParser.replace_post(tmp)
         self.raw += tmp
 
     def is_html(self, text = None, allow_picture = False):