--- a/scrape.py
+++ b/scrape.py
@@ -1,1 +1,116 @@
+#http://packages.python.org/CouchDB/client.html
+import couchdb
+import urllib2
+from BeautifulSoup import BeautifulSoup
+import re
+import hashlib
+from urlparse import urljoin
+import time
+import os
 
+#http://diveintopython.org/http_web_services/etags.html
+class NotModifiedHandler(urllib2.BaseHandler):  
+    def http_error_304(self, req, fp, code, message, headers):
+        addinfourl = urllib2.addinfourl(fp, headers, req.get_full_url())
+        addinfourl.code = code
+        return addinfourl
+
+def fetchURL(docsdb, url, fieldName, agencyID, scrape_again=True):
+    hash = hashlib.md5(url).hexdigest()
+    req = urllib2.Request(url)
+    print "Fetching %s" % url
+    doc = docsdb.get(hash) 
+    if doc == None:
+	doc = {'_id': hash, 'agencyID': agencyID, 'url': url, 'fieldName':fieldName}
+    else:
+	if (time.time() - doc['page_scraped']) < 3600:
+		print "Uh oh, trying to scrape URL again too soon!"
+		last_attachment_fname = doc["_attachments"].keys()[-1]
+		last_attachment = docsdb.get_attachment(doc,last_attachment_fname)
+		return (doc['mime_type'],last_attachment)
+	if scrape_again == False:
+		print "Not scraping this URL again as requested"
+		return (None,None)
+
+    time.sleep(3) # wait 3 seconds to give webserver time to recover
+    
+    #if there is a previous version stored in couchdb, load caching helper tags
+    if doc.has_key('etag'):
+        req.add_header("If-None-Match", doc['etag'])
+    if doc.has_key('last_modified'):
+        req.add_header("If-Modified-Since", doc['last_modified'])
+     
+    opener = urllib2.build_opener(NotModifiedHandler())
+    url_handle = opener.open(req)
+    headers = url_handle.info() # the addinfourls have the .info() too
+    doc['etag'] = headers.getheader("ETag")
+    doc['last_modified'] = headers.getheader("Last-Modified") 
+    doc['date'] = headers.getheader("Date") 
+    doc['page_scraped'] = time.time() 
+    doc['web_server'] = headers.getheader("Server") 
+    doc['powered_by'] = headers.getheader("X-Powered-By") 
+    doc['file_size'] = headers.getheader("Content-Length") 
+    doc['mime_type'] = headers.getheader("Content-Type").split(";")[0]
+    if hasattr(url_handle, 'code'): 
+        if url_handle.code == 304:
+            print "the web page has not been modified"
+	    return (None,None)
+        else: 
+            content = url_handle.read()
+	    docsdb.save(doc)
+	    doc = docsdb.get(hash) # need to get a _rev
+	    docsdb.put_attachment(doc, content, str(time.time())+"-"+os.path.basename(url), doc['mime_type']) 
+	    return (doc['mime_type'], content)
+    #store as attachment epoch-filename
+    else:
+        print "error %s in downloading %s" % url_handle.code, URL
+	doc['error'] = "error %s in downloading %s" % url_handle.code, URL    
+        docsdb.save(doc)
+        return (None,None)
+
+
+
+def scrapeAndStore(docsdb, url, depth, fieldName, agencyID):
+    (mime_type,content) = fetchURL(docsdb, url, fieldName, agencyID)
+    if content != None and depth > 0:
+	if mime_type == "text/html" or mime_type == "application/xhtml+xml" or mime_type =="application/xml":
+            # http://www.crummy.com/software/BeautifulSoup/documentation.html
+            soup = BeautifulSoup(content)
+	    navIDs = soup.findAll(id=re.compile('nav|Nav|menu|bar'))
+	    for nav in navIDs:
+		print "Removing element", nav['id']
+		nav.extract()
+	    navClasses = soup.findAll(attrs={'class' : re.compile('nav|menu|bar')})
+	    for nav in navClasses:
+		print "Removing element", nav['class']
+		nav.extract()
+            links = soup.findAll('a') # soup.findAll('a', id=re.compile("^p-"))
+	    linkurls = set([])
+            for link in links:
+            	if link.has_key("href"):
+			if link['href'].startswith("http"):
+				# lets not do external links for now
+				# linkurls.add(link['href'])
+				None
+			else:
+                		linkurls.add(urljoin(url,link['href'].replace(" ","%20")))
+            for linkurl in linkurls:
+		#print linkurl
+		scrapeAndStore(docsdb, linkurl, depth-1, fieldName, agencyID)    
+
+couch = couchdb.Server('http://127.0.0.1:5984/')
+
+# select database
+agencydb = couch['disclosr-agencies']
+docsdb = couch['disclosr-documents']
+
+for row in agencydb.view('app/getScrapeRequired'): #not recently scraped agencies view?
+    agency = agencydb.get(row.id)
+    print agency['name']
+    for key in agency.keys():
+	if key == 'website' or key.endswith('URL'):
+		print key
+    		scrapeAndStore(docsdb, agency[key],agency['scrapeDepth'],key,agency['_id'])
+    agency['metadata']['lastscraped'] = time.time()
+    agencydb.save(agency)
+