--- 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