--- ECHO_content/ECHO_helpers.py	2004/08/19 20:28:18	1.17
+++ ECHO_content/ECHO_helpers.py	2004/10/27 15:58:15	1.23
@@ -1,10 +1,47 @@
 import socket
 import urllib
+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:
+		try:
+			fh=urllib.urlopen(meta_url)
+			dom=xml.dom.minidom.parse(fh)
+	        except:
+			return None
+	if not dom: return None
+
+	parent=dom.getElementsByTagName(parent)
+	if not parent: return None
+
+	field=parent[0].getElementsByTagName(field)
+
+	if not field: return None
+
+	return getText(field[0].childNodes)
+	
 	
+	      
 def urlopen(url):
 	"""urlopen mit timeout"""
 	socket.setdefaulttimeout(2)
-	return urllib.urlopen(url)
+	ret=urllib.urlopen(url)
+	socket.setdefaulttimeout(5)
+	return ret
 #	urlopener = urllib.URLopener()
 #
 #	try:		
@@ -14,7 +51,7 @@ def urlopen(url):
 #		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):