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

[Alexander Plavin]

# HG changeset patch
# User Alexander Plavin <alexander at plav.in>
# Date 1378459856 -14400
#      Fri Sep 06 13:30:56 2013 +0400
# Node ID ab7d6890e62500ad220ba733db2af7edf055c5f4
# Parent  763804a97b788beaad3c9edb05634e068dc17529
hgweb, config: make search restrictions configurable with web.restrictsearch

Add boolean config option to allow disabling all search restrictions.

diff -r 763804a97b78 -r ab7d6890e625 mercurial/help/config.txt
--- a/mercurial/help/config.txt	Fri Sep 06 13:30:56 2013 +0400
+++ b/mercurial/help/config.txt	Fri Sep 06 13:30:56 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 763804a97b78 -r ab7d6890e625 mercurial/hgweb/webcommands.py
--- a/mercurial/hgweb/webcommands.py	Fri Sep 06 13:30:56 2013 +0400
+++ b/mercurial/hgweb/webcommands.py	Fri Sep 06 13:30:56 2013 +0400
@@ -177,13 +177,14 @@
             # no revset syntax used
             return MODE_KEYWORD, query
 
-        if util.any((token, (value or '')[:3]) == ('string', 're:')
-                    for token, value, pos in revset.tokenize(revdef)):
-            return MODE_KEYWORD, query
+        if web.configbool('web', 'restrictsearch', True):
+            if util.any((token, (value or '')[:3]) == ('string', 're:')
+                        for token, value, pos in revset.tokenize(revdef)):
+                return MODE_KEYWORD, query
 
-        funcsused = revset.funcsused(tree)
-        if not funcsused.issubset(revset.safesymbols):
-            return MODE_KEYWORD, query
+            funcsused = revset.funcsused(tree)
+            if not funcsused.issubset(revset.safesymbols):
+                return MODE_KEYWORD, query
 
         mfunc = revset.match(web.repo.ui, revdef)
         try: