beginnings rss scraper
[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 time import mktime
from datetime import datetime  
import feedparser import feedparser
import abc import abc
  import unicodedata, re
class GenericRSSDisclogScraper(object): import dateutil
  from dateutil.parser import *
  from datetime import *
  import codecs
   
  from StringIO import StringIO
   
  from docx import *
  from lxml import etree
  import zipfile
   
  from pdfminer.pdfparser import PDFDocument, PDFParser
  from pdfminer.pdfinterp import PDFResourceManager, PDFPageInterpreter, process_pdf
  from pdfminer.pdfdevice import PDFDevice, TagExtractor
  from pdfminer.converter import TextConverter
  from pdfminer.cmapdb import CMapDB
  from pdfminer.layout import LAParams
   
  class GenericDisclogScraper(object):
__metaclass__ = abc.ABCMeta __metaclass__ = abc.ABCMeta
@abc.abstractmethod agencyID = None
  disclogURL = None
  def remove_control_chars(self, input):
  return "".join([i for i in input if ord(i) in range(32, 127)])
def getAgencyID(self): def getAgencyID(self):
""" disclosr agency id """ """ disclosr agency id """
return if self.agencyID == None:
  self.agencyID = os.path.basename(sys.argv[0]).replace(".py","")
@abc.abstractmethod return self.agencyID
   
def getURL(self): def getURL(self):
""" disclog URL""" """ disclog URL"""
return if self.disclogURL == None:
  agency = scrape.agencydb.get(self.getAgencyID())
  self.disclogURL = agency['FOIDocumentsURL']
  return self.disclogURL
   
  @abc.abstractmethod
  def doScrape(self):
  """ do the scraping """
  return
   
  class GenericPDFDisclogScraper(GenericDisclogScraper):
   
  def doScrape(self):
  foidocsdb = scrape.couch['disclosr-foidocuments']
  (url,mime_type,content) = scrape.fetchURL(scrape.docsdb, self.getURL(), "foidocuments", self.getAgencyID())
   
  laparams = LAParams()
   
  rsrcmgr = PDFResourceManager(caching=True)
   
  outfp = StringIO.StringIO()
   
  device = TextConverter(rsrcmgr, outfp, codec='utf-8', laparams=laparams)
   
   
  fp = StringIO.StringIO()
  fp.write(content)
  description = output.getvalue();
  process_pdf(rsrcmgr, device, fp, set(), caching=True, check_extractable=True)
  fp.close()
  device.close()
  outfp.close()
   
  hash = scrape.mkhash(description)
  #print hash
  doc = foidocsdb.get(hash)
  #print doc
  if doc == None:
  print "saving "+ hash
  edate = datetime.fromtimestamp(mktime( )).strftime("%Y-%m-%d")
  doc = {'_id': hash, 'agencyID': self.getAgencyID(), 'url': self.getURL(), 'docID': hash,
  "date": edate,"title": "Disclosure Log Updated"}
  self.getDescription(entry,entry, doc)
  foidocsdb.save(doc)
  else:
  print "already saved"
   
   
  class GenericDOCXDisclogScraper(GenericDisclogScraper):
   
  def doScrape(self):
  foidocsdb = scrape.couch['disclosr-foidocuments']
  (url,mime_type,content) = scrape.fetchURL(scrape.docsdb, self.getURL(), "foidocuments", self.getAgencyID())
   
  mydoc = zipfile.ZipFile(file)
  xmlcontent = mydoc.read('word/document.xml')
  document = etree.fromstring(xmlcontent)
   
  ## Fetch all the text out of the document we just created
  paratextlist = getdocumenttext(document)
   
  # Make explicit unicode version
  newparatextlist = []
  for paratext in paratextlist:
  newparatextlist.append(paratext.encode("utf-8"))
   
  ## Print our documnts test with two newlines under each paragraph
  description = '\n\n'.join(newparatextlist)
   
  hash = scrape.mkhash(description)
  #print hash
  doc = foidocsdb.get(hash)
  #print doc
  if doc == None:
  print "saving "+ hash
  edate = datetime.fromtimestamp(mktime()).strftime("%Y-%m-%d")
  doc = {'_id': hash, 'agencyID': self.getAgencyID(), 'url': self.getURL(), 'docID': hash,
  "date": edate,"title": "Disclosure Log Updated"}
  self.getDescription(entry,entry, doc)
  foidocsdb.save(doc)
  else:
  print "already saved"
   
   
  class GenericRSSDisclogScraper(GenericDisclogScraper):
   
def doScrape(self): def doScrape(self):
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())
feed = feedparser.parse(content) feed = feedparser.parse(content)
for entry in feed.entries: for entry in feed.entries:
#print entry #print entry
print entry.id print entry.id
hash = scrape.mkhash(entry.link) hash = scrape.mkhash(entry.id)
  #print hash
doc = foidocsdb.get(hash) doc = foidocsdb.get(hash)
  #print doc
if doc == None: if doc == None:
print "saving" print "saving "+ hash
edate = datetime.fromtimestamp(mktime( entry.published_parsed)).strftime("%Y-%m-%d") edate = datetime.fromtimestamp(mktime( entry.published_parsed)).strftime("%Y-%m-%d")
doc = {'id': hash, 'agencyID': self.getAgencyID(), 'url': entry.link, 'docID': entry.id, doc = {'_id': hash, 'agencyID': self.getAgencyID(), 'url': entry.link, 'docID': entry.id,
"date": edate, "description": entry.summary,"title": entry.title} "date": edate,"title": entry.title}
  self.getDescription(entry,entry, doc)
foidocsdb.save(doc) foidocsdb.save(doc)
else: else:
print "already saved" print "already saved"
  def getDescription(self, content, entry, doc):
class GenericOAICDisclogScraper(object): """ get description from rss entry"""
__metaclass__ = abc.ABCMeta doc.update({'description': content.summary})
@abc.abstractmethod return
def getAgencyID(self):  
""" disclosr agency id """ class GenericOAICDisclogScraper(GenericDisclogScraper):
return __metaclass__ = abc.ABCMeta
   
@abc.abstractmethod  
def getURL(self):  
""" disclog URL"""  
return  
   
@abc.abstractmethod @abc.abstractmethod
def getColumns(self,columns): def getColumns(self,columns):
""" rearranges columns if required """ """ rearranges columns if required """
return return
  def getColumnCount(self):
  return 5
  def getDescription(self, content, entry, doc):
  """ get description from rss entry"""
  descriptiontxt = ""
  for string in content.stripped_strings:
  descriptiontxt = descriptiontxt + " \n" + string
  doc.update({'description': descriptiontxt})
  return
  def getTitle(self, content, entry, doc):
  doc.update({'title': (''.join(content.stripped_strings))})
  return
  def getTable(self, soup):
  return soup.table
  def getRows(self, table):
  return table.find_all('tr')
  def getDate(self, content, entry, doc):
  date = ''.join(content.stripped_strings).strip()
  (a,b,c) = date.partition("(")
  date = self.remove_control_chars(a.replace("Octber","October"))
  print date
  edate = parse(date, dayfirst=True, fuzzy=True).strftime("%Y-%m-%d")
  print edate
  doc.update({'date': edate})
  return
  def getLinks(self, content, entry, doc):
  links = []
  for atag in entry.find_all("a"):
  if atag.has_key('href'):
  links.append(scrape.fullurl(content,atag['href']))
  if links != []:
  doc.update({'links': links})
  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'): table = self.getTable(soup)
  for row in self.getRows(table):
columns = row.find_all('td') columns = row.find_all('td')
if len(columns) == 5: if len(columns) == self.getColumnCount():
(id, date, description, title, notes) = self.getColumns(columns) (id, date, title, description, notes) = self.getColumns(columns)
print id.string print self.remove_control_chars(''.join(id.stripped_strings))
hash = scrape.mkhash(url+id.string) if id.string == None:
links = [] hash = scrape.mkhash(self.remove_control_chars(url+(''.join(date.stripped_strings))))
for atag in row.find_all("a"): else:
if atag.has_key('href'): hash = scrape.mkhash(self.remove_control_chars(url+(''.join(id.stripped_strings))))
links.append(scrape.fullurl(url,atag['href']))  
doc = foidocsdb.get(hash) doc = foidocsdb.get(hash)
descriptiontxt = ""  
for string in description.stripped_strings:  
descriptiontxt = descriptiontxt + " \n" + string  
if doc == None: if doc == None:
print "saving" print "saving " +hash
dtresult = cal.parseDateText(date.string) doc = {'_id': hash, 'agencyID': self.getAgencyID(), 'url': self.getURL(), 'docID': (''.join(id.stripped_strings))}
if len(dtresult) == 2: self.getLinks(self.getURL(),row,doc)
(dtdate,dtr) = dtresult self.getTitle(title,row, doc)
print dtdate self.getDate(date,row, doc)
edate = ""+str(dtdate[0])+'-'+str(dtdate[1])+'-'+str(dtdate[2]) self.getDescription(description,row, doc)
else: if notes != None:
edate = "" doc.update({ 'notes': (''.join(notes.stripped_strings))})
doc = {'id': hash, 'agencyID': self.getAgencyID(), 'url': self.getURL(), "links": links, 'docID': id.string, badtitles = ['-','Summary of FOI Request','FOI request(in summary form)','Summary of FOI request received by the ASC',
"date": edate, "description": descriptiontxt,"title": title.string,"notes": notes.string} 'Summary of FOI request received by agency/minister','Description of Documents Requested','FOI request','Description of FOI Request','Summary of request','Description','Summary',
foidocsdb.save(doc) 'Summary of FOIrequest received by agency/minister','Summary of FOI request received','Description of FOI Request',"FOI request",'Results 1 to 67 of 67']
  if doc['title'] not in badtitles and doc['description'] != '':
  print "saving"
  foidocsdb.save(doc)
else: else:
print "already saved" print "already saved "+hash
elif len(row.find_all('th')) == 5: elif len(row.find_all('th')) == self.getColumnCount():
print "header row" print "header row"
else: else:
print "ERROR number of columns incorrect" print "ERROR number of columns incorrect"
print row print row