Redid direct agency info import
[disclosr.git] / unimplemented / scrape.py
blob:a/unimplemented/scrape.py -> blob:b/unimplemented/scrape.py
--- a/unimplemented/scrape.py
+++ b/unimplemented/scrape.py
@@ -1,1 +1,64 @@
+#http://packages.python.org/CouchDB/client.html
+import couchdb
+import urllib2
+from BeautifulSoup import BeautifulSoup
+import re
 
+couch = couchdb.Server() # Assuming localhost:5984
+# If your CouchDB server is running elsewhere, set it up like this:
+# couch = couchdb.Server('http://example.com:5984/')
+
+# select database
+agencydb = couch['disclosr-agencies']
+
+for row in agencydb.view('app/getScrapeRequired'): #not recently scraped agencies view?
+    agency = agencydb.get(row.id)
+    print agency['agencyName']
+
+#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 scrapeAndStore(URL, depth, agency):
+    URL = "http://www.hole.fi/jajvirta/weblog/"
+    req = urllib2.Request(URL)
+    
+    #if there is a previous version sotred in couchdb, load caching helper tags
+    if etag:
+        req.add_header("If-None-Match", etag)
+    if last_modified:
+        req.add_header("If-Modified-Since", last_modified)
+     
+    opener = urllib2.build_opener(NotModifiedHandler())
+    url_handle = opener.open(req)
+    headers = url_handle.info() # the addinfourls have the .info() too
+    etag = headers.getheader("ETag")
+    last_modified = headers.getheader("Last-Modified") 
+    web_server = headers.getheader("Server") 
+    file_size = headers.getheader("Content-Length") 
+    mime_type = headers.getheader("Content-Type") 
+     
+    if hasattr(url_handle, 'code') and url_handle.code == 304:
+        print "the web page has not been modified"
+    else:
+        print "error %s in downloading %s", url_handle.code, URL
+        #record/alert error to error database
+    
+    #do scraping
+    html = ?
+    # http://www.crummy.com/software/BeautifulSoup/documentation.html
+    soup = BeautifulSoup(html)
+links = soup.findAll('a') # soup.findAll('a', id=re.compile("^p-"))
+for link in links:
+    print link['href']
+    #for each unique link
+    #if html mimetype
+    # go down X levels,
+    # diff with last stored attachment, store in document
+    #if not
+    #   remember to save parentURL and title (link text that lead to document)
+    
+    #store as attachment epoch-filename