better date parser
[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
from time import mktime from time import mktime
import feedparser import feedparser
import abc import abc
import unicodedata, re import unicodedata, re
import dateutil import dateutil
from dateutil.parser import * from dateutil.parser import *
from datetime 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): class GenericDisclogScraper(object):
__metaclass__ = abc.ABCMeta __metaclass__ = abc.ABCMeta
agencyID = None agencyID = None
disclogURL = None disclogURL = None
def remove_control_chars(self, input): def remove_control_chars(self, input):
return "".join([i for i in input if ord(i) in range(32, 127)]) 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 """
if self.agencyID == None: if self.agencyID == None:
self.agencyID = os.path.basename(sys.argv[0]).replace(".py","") self.agencyID = os.path.basename(sys.argv[0]).replace(".py","")
return self.agencyID return self.agencyID
   
def getURL(self): def getURL(self):
""" disclog URL""" """ disclog URL"""
if self.disclogURL == None: if self.disclogURL == None:
agency = scrape.agencydb.get(self.getAgencyID()) agency = scrape.agencydb.get(self.getAgencyID())
self.disclogURL = agency['FOIDocumentsURL'] self.disclogURL = agency['FOIDocumentsURL']
return self.disclogURL return self.disclogURL
   
@abc.abstractmethod @abc.abstractmethod
def doScrape(self): def doScrape(self):
""" do the scraping """ """ do the scraping """
return return
   
@abc.abstractmethod class GenericPDFDisclogScraper(GenericDisclogScraper):
def getDescription(self, content, entry, doc):  
""" get description""" def doScrape(self):
return 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): 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.id) hash = scrape.mkhash(entry.id)
#print hash #print hash
doc = foidocsdb.get(hash) doc = foidocsdb.get(hash)
#print doc #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,"title": entry.title} "date": edate,"title": entry.title}
self.getDescription(entry,entry, doc) 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): def getDescription(self, content, entry, doc):
""" get description from rss entry""" """ get description from rss entry"""
doc.update({'description': content.summary}) doc.update({'description': content.summary})
return return
   
class GenericOAICDisclogScraper(GenericDisclogScraper): class GenericOAICDisclogScraper(GenericDisclogScraper):
__metaclass__ = abc.ABCMeta __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 getColumnCount(self): def getColumnCount(self):
return 5 return 5
def getDescription(self, content, entry, doc): def getDescription(self, content, entry, doc):
""" get description from rss entry""" """ get description from rss entry"""
descriptiontxt = "" descriptiontxt = ""
for string in content.stripped_strings: for string in content.stripped_strings:
descriptiontxt = descriptiontxt + " \n" + string descriptiontxt = descriptiontxt + " \n" + string
doc.update({'description': descriptiontxt}) doc.update({'description': descriptiontxt})
return return
def getTitle(self, content, entry, doc): def getTitle(self, content, entry, doc):
doc.update({'title': content.string}) doc.update({'title': (''.join(content.stripped_strings))})
return return
def getTable(self, soup): def getTable(self, soup):
return soup.table return soup.table
  def getRows(self, table):
  return table.find_all('tr')
def getDate(self, content, entry, doc): def getDate(self, content, entry, doc):
edate = parse(content.string.strip(), dayfirst=True, fuzzy=True).strftime("%Y-%m-%d") 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 print edate
doc.update({'date': 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 return
   
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())
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)
table = self.getTable(soup) table = self.getTable(soup)
for row in table.find_all('tr'): for row in self.getRows(table):
columns = row.find_all('td') columns = row.find_all('td')
if len(columns) == self.getColumnCount(): 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))
if id.string == None: if id.string == None:
hash = scrape.mkhash(self.remove_control_chars(url+date.string)) hash = scrape.mkhash(self.remove_control_chars(url+(''.join(date.stripped_strings))))
else: else:
hash = scrape.mkhash(self.remove_control_chars(url+id.string)) hash = scrape.mkhash(self.remove_control_chars(url+(''.join(id.stripped_strings))))
links = []  
for atag in row.find_all("a"):  
if atag.has_key('href'):  
links.append(scrape.fullurl(url,atag['href']))  
doc = foidocsdb.get(hash) doc = foidocsdb.get(hash)
if doc == None: if doc == None:
print "saving" print "saving " +hash
doc = {'_id': hash, 'agencyID': self.getAgencyID(), 'url': self.getURL(), 'docID': id.string} doc = {'_id': hash, 'agencyID': self.getAgencyID(), 'url': self.getURL(), 'docID': (''.join(id.stripped_strings))}
if links != []: self.getLinks(self.getURL(),row,doc)
doc.update({'links': links})  
self.getTitle(title,row, doc) self.getTitle(title,row, doc)
self.getDate(date,row, doc) self.getDate(date,row, doc)
self.getDescription(description,row, doc) self.getDescription(description,row, doc)
if notes != None: if notes != None:
doc.update({ 'notes': notes.string}) doc.update({ 'notes': (''.join(notes.stripped_strings))})
foidocsdb.save(doc) foidocsdb.save(doc)
else: else:
print "already saved "+hash print "already saved "+hash
elif len(row.find_all('th')) == self.getColumnCount(): 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