--- ECHO_content/ECHO_helpers.py	2004/08/18 12:41:00	1.16
+++ ECHO_content/ECHO_helpers.py	2004/10/27 14:23:24	1.21
@@ -1,18 +1,54 @@
-import timeoutsocket
+import socket
 import urllib
-timeoutsocket.setDefaultSocketTimeout(2)
-urlopener = urllib.URLopener()
+import xml.dom.minidom
+
+def getText(nodelist):
+
+    rc = ""
+    for node in nodelist:
+    	if node.nodeType == node.TEXT_NODE:
+           rc = rc + node.data
+    return rc
+
+
+def readFieldFromXML(meta_url,parent,field):
+	"""lesespezifisches metadatum"""
+	
+	try:
+		dom=xml.dom.minidom.parse(meta_url)
+
+	except:
+		fh=urllib.urlopen(meta_url)
+		dom=xml.dom.minidom.parse(fh)
+	if not dom: return None
+
+	parent=dom.getElementsByTagName(parent)
+	if not dom: return None
+
+	field=parent[0].getElementsByTagName(field)
+
+	if not field: return None
+
+	return getText(field[0].childNodes)
+	
 	
+	      
 def urlopen(url):
 	"""urlopen mit timeout"""
-	try:		
-		con = urlopener.open(url)
-		return con
-	except timeoutsocket.Timeout:
-		return None
+	socket.setdefaulttimeout(2)
+	ret=urllib.urlopen(url)
+	socket.setdefaulttimeout(5)
+	return ret
+#	urlopener = urllib.URLopener()
+#
+#	try:		
+#		con = urlopener.open(url)
+#		return con
+#	except timeoutsocket.Timeout:
+#		return None
 
 
-displayTypes = ['ZSQLExtendFolder','ZSQLBibliography','ECHO_group','ECHO_collection','ECHO_resource','ECHO_link','ECHO_sqlElement','ECHO_pageTemplate','ImageCollectionIFrame','VLP_resource','VLP_collection','VLP_essay','ECHO_ZCatalogElement']
+displayTypes = ['ZSQLExtendFolder','ZSQLBibliography','ECHO_group','ECHO_collection','ECHO_resource','ECHO_link','ECHO_sqlElement','ECHO_pageTemplate','ImageCollectionIFrame','VLP_resource','VLP_essay','ECHO_ZCatalogElement']
 
 
 def checkOnlyOneInGroup(object):