made generic OAIC format table scraper class
[disclosr.git] / documents / genericScrapers.py
blob:a/documents/genericScrapers.py -> blob:b/documents/genericScrapers.py
import sys,os import sys,os
sys.path.insert(0, os.path.join(os.path.dirname(__file__) or '.', '../')) sys.path.insert(0, os.path.join(os.path.dirname(__file__) or '.', '../'))
import scrape import scrape
   
from bs4 import BeautifulSoup from bs4 import BeautifulSoup
  import parsedatetime as pdt
  from time import mktime
  from datetime import datetime
  import feedparser
import abc import abc
   
class GenericOAICDisclogScraper(object): class GenericDisclogScraper(object):
__metaclass__ = abc.ABCMeta __metaclass__ = abc.ABCMeta
  agencyID = None
  disclogURL = None
  def getAgencyID(self):
  """ disclosr agency id """
  if self.agencyID == None:
  self.agencyID = os.path.basename(sys.argv[0]).replace(".py","")
  return self.agencyID
   
  def getURL(self):
  """ disclog URL"""
  if self.disclogURL == None:
  agency = scrape.agencydb.get(self.getAgencyID())
  self.disclogURL = agency['FOIDocumentsURL']
  return self.disclogURL
   
@abc.abstractmethod @abc.abstractmethod
def getAgencyID(self): def doScrape(self):
""" disclosr agency id """ """ do the scraping """
return return
   
@abc.abstractmethod  
def getURL(self):  
""" disclog URL""" class GenericRSSDisclogScraper(GenericDisclogScraper):
  def getDescription(self, entry, doc):
  """ get description from rss entry"""
  doc['description'] = entry.summary
return return
   
  def doScrape(self):
  foidocsdb = scrape.couch['disclosr-foidocuments']
  (url,mime_type,content) = scrape.fetchURL(scrape.docsdb, self.getURL(), "foidocuments", self.getAgencyID())
  feed = feedparser.parse(content)
  for entry in feed.entries:
  #print entry
  print entry.id
  hash = scrape.mkhash(entry.id)
  #print hash
  doc = foidocsdb.get(hash)
  #print doc
  if doc == None:
  print "saving"
  edate = datetime.fromtimestamp(mktime( entry.published_parsed)).strftime("%Y-%m-%d")
  doc = {'_id': hash, 'agencyID': self.getAgencyID(), 'url': entry.link, 'docID': entry.id,
  "date": edate,"title": entry.title}
  self.getDescription(entry, doc)
  foidocsdb.save(doc)
  else:
  print "already saved"
   
  class GenericOAICDisclogScraper(GenericDisclogScraper):
  __metaclass__ = abc.ABCMeta
@abc.abstractmethod @abc.abstractmethod
def getColumns(self,columns): def getColumns(self,columns):
""" rearranges columns if required """ """ rearranges columns if required """
return return
   
def doScrape(self): def doScrape(self):
  cal = pdt.Calendar()
foidocsdb = scrape.couch['disclosr-foidocuments'] foidocsdb = scrape.couch['disclosr-foidocuments']
(url,mime_type,content) = scrape.fetchURL(scrape.docsdb, self.getURL(), "foidocuments", self.getAgencyID()) (url,mime_type,content) = scrape.fetchURL(scrape.docsdb, self.getURL(), "foidocuments", self.getAgencyID())
if content != None: if content != None:
if mime_type == "text/html" or mime_type == "application/xhtml+xml" or mime_type =="application/xml": if mime_type == "text/html" or mime_type == "application/xhtml+xml" or mime_type =="application/xml":
# http://www.crummy.com/software/BeautifulSoup/documentation.html # http://www.crummy.com/software/BeautifulSoup/documentation.html
soup = BeautifulSoup(content) soup = BeautifulSoup(content)
for row in soup.table.find_all('tr'): for row in soup.table.find_all('tr'):
columns = row.find_all('td') columns = row.find_all('td')
if len(columns) == 5: if len(columns) == 5:
(id, date, description, title, notes) = self.getColumns(columns) (id, date, description, title, notes) = self.getColumns(columns)
print id.string print id.string
hash = scrape.mkhash(url+id.string) hash = scrape.mkhash(url+id.string)
links = [] links = []
for atag in row.find_all("a"): for atag in row.find_all("a"):
if atag.has_key('href'): if atag.has_key('href'):
links.append(scrape.fullurl(url,atag['href'])) links.append(scrape.fullurl(url,atag['href']))
doc = foidocsdb.get(hash) doc = foidocsdb.get(hash)
descriptiontxt = "" descriptiontxt = ""
for string in description.stripped_strings: for string in description.stripped_strings:
descriptiontxt = descriptiontxt + string descriptiontxt = descriptiontxt + " \n" + string
if doc == None: if doc == None:
print "saving" print "saving"
  dtresult = cal.parseDateText(date.string)
  if len(dtresult) == 2:
  (dtdate,dtr) = dtresult
  print dtdate
  edate = ""+str(dtdate[0])+'-'+str(dtdate[1])+'-'+str(dtdate[2])
  else:
  edate = ""
doc = {'_id': hash, 'agencyID': self.getAgencyID(), 'url': self.getURL(), "links": links, 'docID': id.string, doc = {'_id': hash, 'agencyID': self.getAgencyID(), 'url': self.getURL(), "links": links, 'docID': id.string,
"date": date.string, "description": descriptiontxt,"title": title.string,"notes": notes.string} "date": edate, "description": descriptiontxt,"title": title.string,"notes": notes.string}
foidocsdb.save(doc) foidocsdb.save(doc)
else: else:
print "already saved" print "already saved"
elif len(row.find_all('th')) == 5: elif len(row.find_all('th')) == 5:
print "header row" print "header row"
else: else:
print "ERROR number of columns incorrect" print "ERROR number of columns incorrect"
print row print row