[PATCH 6 of 6 V2] hgweb, config: make search restrictions configurable with web.restrictsearch

[Alexander Plavin]

# HG changeset patch
# User Alexander Plavin <alexander at plav.in>
# Date 1376651054 -14400
#      Fri Aug 16 15:04:14 2013 +0400
# Node ID 7ab9fd34cfad91aeb07558fbacce36eaef28abe5
# Parent  b913f96bf64f241a3253f64a71d637f440ab5ded
hgweb, config: make search restrictions configurable with web.restrictsearch

Add boolean config option to allow disabling all search restrictions.

diff -r b913f96bf64f -r 7ab9fd34cfad mercurial/help/config.txt
--- a/mercurial/help/config.txt	Sat Jul 20 01:32:38 2013 +0400
+++ b/mercurial/help/config.txt	Fri Aug 16 15:04:14 2013 +0400
@@ -1461,6 +1461,10 @@
     Whether to require that inbound pushes be transported over SSL to
     prevent password sniffing. Default is True.
 
+``restrictsearch``
+    Whether to restrict usage of regular expressions and
+    heavyweight revset functions in search. Default is True.
+
 ``staticurl``
     Base URL to use for static files. If unset, static files (e.g. the
     hgicon.png favicon) will be served by the CGI script itself. Use
diff -r b913f96bf64f -r 7ab9fd34cfad mercurial/hgweb/webcommands.py
--- a/mercurial/hgweb/webcommands.py	Sat Jul 20 01:32:38 2013 +0400
+++ b/mercurial/hgweb/webcommands.py	Fri Aug 16 15:04:14 2013 +0400
@@ -175,13 +175,14 @@
             # no revset syntax used
             return 'kw'
 
-        if any((token, (value or '')[:3]) == ('string', 're:')
-               for token, value, pos in revset.tokenize(revdef)):
-            return 'kw'
-        funcsused = revset.funcsused(tree)
-        blacklist = set(['contains', 'grep'])
-        if funcsused & blacklist:
-            return 'kw'
+        if web.configbool('web', 'restrictsearch', True):
+            if any((token, (value or '')[:3]) == ('string', 're:')
+                   for token, value, pos in revset.tokenize(revdef)):
+                return 'kw'
+            funcsused = revset.funcsused(tree)
+            blacklist = set(['contains', 'grep'])
+            if funcsused & blacklist:
+                return 'kw'
 
         mfunc = revset.match(None, revdef)
         try: