[minor] webnotes.conn.touch, signature invalidation

webnotes/__init__.py

@@ -121,6 +121,7 @@ class MappingMismatchError(ValidationError): pass
 class InvalidStatusError(ValidationError): pass
 class DoesNotExistError(ValidationError): pass
 class MandatoryError(ValidationError): pass
+class InvalidSignatureError(ValidationError): pass
 		
 def getTraceback():
 	import utils
@@ -259,7 +260,6 @@ def whitelist(allow_guest=False, allow_roles=None):
 
 
 class HashAuthenticatedCommand(object):
-
 	def __init__(self):
 		if hasattr(self, 'command'):
 			import inspect
@@ -271,10 +271,13 @@ class HashAuthenticatedCommand(object):
 		if self.verify_signature(kwargs, signature):
 			return self.command(*args, **kwargs)
 		else:
-			raise Exception
+			self.signature_error()
 
-	def command():
+	def command(self):
 		raise NotImplementedError
+		
+	def signature_error(self):
+		raise InvalidSignatureError
 
 	def get_signature(self, params, ignore_params=None):
 		import hmac

webnotes/db.py

@@ -400,6 +400,11 @@ class Database:
 		doc.modified_by = webnotes.session["user"]
 		self.set_value(doc.doctype, doc.name, field, val, doc.modified, doc.modified_by)
 		doc.fields[field] = val
+		
+	def touch(self, doctype, docname):
+		from webnotes.utils import now
+		webnotes.conn.sql("""update `tab{doctype}` set `modified`=%s 
+			where name=%s""".format(doctype=doctype), (now(), docname))
 
 	def set_global(self, key, val, user='__global'):
 		self.set_default(key, val, user)

website/templates/pages/message.html

@@ -3,7 +3,7 @@
 {% set title=webnotes.local.message_title %}
 
 {% block content %}
-<div class="panel panel-danger">
+<div class="panel panel-{{ 'success' if webnotes.local.message_success else 'danger'}}">
 	<div class="panel-heading">
 		{{ title }}
 	</div>