/
scraper.py
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/
scraper.py
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# This is a general purpose library for scraping any Swift LG planning site.
# Originally made by Duncan Parkes for PlanningAlerts.com
import urllib2
import urllib
import urlparse
import cgi
import re
import datetime
import BeautifulSoup
import scraperwiki.utils
PlanningUtils = scraperwiki.utils.swimport("planningalertscom-planningutils-library")
getPostcodeFromText = PlanningUtils.getPostcodeFromText
PlanningAuthorityResults = PlanningUtils.PlanningAuthorityResults
PlanningApplication = PlanningUtils.PlanningApplication
# - Browser request: --------------------------
# {POST http://digitalmaidstone.co.uk/swiftlg/apas/run/WPHAPPCRITERIA HTTP/1.0} {Host: digitalmaidstone.co.uk
# Accept: text/html, text/plain, text/css, text/sgml, */*;q=0.01
# Accept-Encoding: gzip
# Accept-Language: en
# Pragma: no-cache
# Cache-Control: no-cache
# User-Agent: Lynx/2.8.6rel.4 libwww-FM/2.14 SSL-MM/1.4.1 GNUTLS/1.6.3
# Content-type: application/x-www-form-urlencoded
# Content-length: 638
# } %25.MAINBODY.WPACIS.1.=&APNID.MAINBODY.WPACIS.1.=&JUSTLOCATION.MAINBODY.WPACIS.1.=&JUSTDEVDESC.MAINBODY.WPACIS.1.=&DEVDESC.MAINBODY.WPACIS.1.=&SURNAME.MAINBODY.WPACIS.1.=®FROMDATE.MAINBODY.WPACIS.1.=01%2F11%2F2007®TODATE.MAINBODY.WPACIS.1.=02%2F11%2F2007&DECFROMDATE.MAINBODY.WPACIS.1.=&DECTODATE.MAINBODY.WPACIS.1.=&FINALGRANTFROM.MAINBODY.WPACIS.1.=&FINALGRANTTO.MAINBODY.WPACIS.1.=&APELDGDATFROM.MAINBODY.WPACIS.1.=&APELDGDATTO.MAINBODY.WPACIS.1.=&APEDECDATFROM.MAINBODY.WPACIS.1.=&APEDECDATTO.MAINBODY.WPACIS.1.=&AREA.MAINBODY.WPACIS.1.=&WARD.MAINBODY.WPACIS.1.=&PARISH.MAINBODY.WPACIS.1.=&SEARCHBUTTON.MAINBODY.WPACIS.1.=Search
# server=[digitalmaidstone.co.uk] , port=[80], script=[/swiftlg/apas/run/WPHAPPCRITERIA]
# request_line=[POST /swiftlg/apas/run/WPHAPPCRITERIA HTTP/1.0]
# second page
#http://digitalmaidstone.co.uk/swiftlg/apas/run/WPHAPPSEARCHRES.displayResultsURL?ResultID=243941&
#StartIndex=11&
#SortOrder=APNID:asc&
#DispResultsAs=WPHAPPSEARCHRES&
#BackURL=<a%20href=wphappcriteria.display?paSearchKey=147118>Search%20Criteria
# Date format to enter into search boxes
date_format = "%d/%m/%Y"
class SwiftLGParser:
search_path = "WPHAPPCRITERIA"
info_path = "WPHAPPDETAIL.DisplayUrl?theApnID=%s"
comment_path ="wphmakerep.displayURL?ApnID=%s"
def _fixHTML(self, html):
return html
def _findResultsTable(self, soup):
"""Unless there is just one table in the page, the resuts table,
override this in a subclass."""
return soup.table
def _findTRs(self, results_table):
"""The usual situation is for the results table to contain
one row of headers, followed by a row per app.
If this is not the case, override this in a subclass."""
# import pdb;pdb.set_trace()
return results_table.findAll("tr")[1:]
def __init__(self,
authority_name,
authority_short_name,
base_url,
debug=False):
self.authority_name = authority_name
self.authority_short_name = authority_short_name
self.base_url = base_url
self.search_url = urlparse.urljoin(base_url, self.search_path)
self.info_url = urlparse.urljoin(base_url, self.info_path)
self.comment_url = urlparse.urljoin(base_url, self.comment_path)
self.debug = debug
self._results = PlanningAuthorityResults(self.authority_name, self.authority_short_name)
def getResultsByDayMonthYear(self, day, month, year):
search_date = datetime.date(year, month, day)
post_data = urllib.urlencode((
("REGFROMDATE.MAINBODY.WPACIS.1.", search_date.strftime(date_format)),
("REGTODATE.MAINBODY.WPACIS.1.", search_date.strftime(date_format)),
("SEARCHBUTTON.MAINBODY.WPACIS.1.", "Search"),
))
response = urllib2.urlopen(self.search_url, post_data)
contents = response.read()
# Let's give scrapers the change to tidy up any rubbish - I'm looking
# at you Cannock Chase
contents = self._fixHTML(contents)
# Check for the no results warning
if not contents.count("No Matching Applications Found"):
soup = BeautifulSoup.BeautifulSoup(contents)
# Get the links to later pages of results.
later_pages = soup.findAll("a", {"href": re.compile("WPHAPPSEARCHRES\.displayResultsURL.*StartIndex=\d*.*")})
for a in ["initial_search"] + later_pages:
if a != "initial_search":
url = a['href']
# Example url
#http://digitalmaidstone.co.uk/swiftlg/apas/run/WPHAPPSEARCHRES.displayResultsURL?ResultID=244037&StartIndex=11&SortOrder=APNID:asc&DispResultsAs=WPHAPPSEARCHRES&BackURL=<a href=wphappcriteria.display?paSearchKey=147170>Search Criteria</a>
# urllib2 doesn't like this url, to make it happy, we'll
# get rid of the BackURL parameter, which we don't need.
split_url = urlparse.urlsplit(url)
qs = split_url[3]
# This gets us a dictionary of key to lists of values
qsl = cgi.parse_qsl(qs)
# Get rid of BackURL
qsl.pop(-1)
# I think this is safe, as there are no repeats of parameters
new_qs = urllib.urlencode(qsl)
url = urlparse.urlunsplit(split_url[:3] + (new_qs,) + split_url[4:])
this_page_url = urlparse.urljoin(self.base_url, url)
response = urllib2.urlopen(this_page_url)
contents = response.read()
soup = BeautifulSoup.BeautifulSoup(contents)
results_table = self._findResultsTable(soup)#.body.find("table", {"class": "apas_tbl"})
trs = self._findTRs(results_table)
for tr in trs:
self._current_application = PlanningApplication()
tds = tr.findAll("td")
# The first td
#<td class="apas_tblContent"><a href="WPHAPPDETAIL.DisplayUrl?theApnID=07/1884&backURL=<a href=wphappcriteria.display?paSearchKey=147125>Search Criteria</a> > <a href='wphappsearchres.displayResultsURL?ResultID=243950%26StartIndex=1%26SortOrder=APNID:asc%26DispResultsAs=WPHAPPSEARCHRES%26BackURL=<a href=wphappcriteria.display?paSearchKey=147125>Search Criteria</a>'>Search Results</a>"></a><a href="wphappcriteria.display?paSearchKey=147125">Search Criteria</a> > <a href="wphappsearchres.displayResultsURL?ResultID=243950%26StartIndex=1%26SortOrder=APNID:asc%26DispResultsAs=WPHAPPSEARCHRES%26BackURL=<a href=wphappcriteria.display?paSearchKey=147125>Search Criteria</a>"></a><a href="wphappcriteria.display?paSearchKey=147125">Search Criteria</a>'>Search Results">07/1884</td>
# The html here is a bit of a mess, and doesn't all get into
# the soup.
# We can get the reference from the first <a href> in td 0.
first_link = tds[0].a['href']
app_id = cgi.parse_qs(urlparse.urlsplit(first_link)[3])['theApnID'][0]
self._current_application.date_received = search_date
self._current_application.council_reference = app_id
self._current_application.info_url = self.info_url %(app_id)
self._current_application.comment_url = self.comment_url %(app_id)
self._current_application.description = tds[1].string.strip()
# the second td
#<td class="apas_tblContent"><input type="HIDDEN" name="ORDERCOUNTER.PAHEADER.PACIS2.1-1." value="1" class="input-box" size="7" />
#LAND ADJ. BRAMBLING, HAWKENBURY ROAD, HAWKENBURY, TN120EA
#</td>
address = ' '.join([x for x in tds[2].contents if isinstance(x, BeautifulSoup.NavigableString)]).strip()
self._current_application.address = address
self._current_application.postcode = getPostcodeFromText(address)
self._results.addApplication(self._current_application)
return self._results
def getResults(self, day, month, year):
return self.getResultsByDayMonthYear(int(day), int(month), int(year)).displayXML()
def getResultsRaw(self, day, month, year):
return self.getResultsByDayMonthYear(int(day), int(month), int(year))
def saveResults(self, day, month, year):
return self.getResultsByDayMonthYear(int(day), int(month), int(year)).save()
class EastHertsParser(SwiftLGParser):
def _findResultsTable(self, soup):
return soup.findAll("table")[3]
class GwyneddParser(SwiftLGParser):
def _findResultsTable(self, soup):
return soup.find("table", {"class": "thinBox"})
class IslingtonParser(SwiftLGParser):
def _findResultsTable(self, soup):
return soup.table.table
class MacclesfieldParser(SwiftLGParser):
def _findResultsTable(self, soup):
return soup.findAll("table")[6]
class MoleValleyParser(SwiftLGParser):
def _findResultsTable(self, soup):
# import pdb;pdb.set_trace()
return soup.findAll("table")[2]
class SloughParser(SwiftLGParser):
def _findResultsTable(self, soup):
return soup.findAll("table")[1]
def _findTRs(self, results_table):
return results_table.findAll("tr")[2:]
class CannockChaseParser(SwiftLGParser):
def _fixHTML(self, html):
return html.replace('</tr class="tablebody">', '</tr>')
if __name__ == '__main__':
# parser = SwiftLGParser("Boston Borough Council", "Boston", "http://195.224.121.199/swiftlg/apas/run/")
# parser = SwiftLGParser("Dudley", "Dudley", "http://www2.dudley.gov.uk/swiftlg/apas/run/")
# parser = EastHertsParser("East Hertfordshire", "East Herts", "http://e-services.eastherts.gov.uk/swiftlg/apas/run/")
# parser = GwyneddParser("Gwynedd", "Gwynedd", "http://www.gwynedd.gov.uk/swiftlg/apas/run/")
# parser = IslingtonParser("Islington", "Islington", "https://www.islington.gov.uk/onlineplanning/apas/run/")
# parser = SwiftLGParser("Lake District", "Lake District", "http://www.lake-district.gov.uk/swiftlg/apas/run/")
# parser = SwiftLGParser("Maidstone Borough Council", "Maidstone", "http://digitalmaidstone.co.uk/swiftlg/apas/run/")
# parser = MoleValleyParser("Mole Valley", "Mole Valley", "http://www.molevalley.gov.uk/swiftlg/apas/run/")
# parser = SwiftLGParser("Pembrokeshire County Council", "Pembrokeshire", "http://planning.pembrokeshire.gov.uk/swiftlg/apas/run/")
# parser = SwiftLGParser("Rochdale Metropolitan Borough Council", "Rochdale", "http://www.rochdale.gov.uk/swiftlg/apas/run/")
# parser = SloughParser("Slough", "Slough", "http://www2.slough.gov.uk/swiftlg/apas/run/")
# parser = SwiftLGParser("Snowdonia National Park", "Snowdonia", "http://www.snowdonia-npa.gov.uk/swiftlg/apas/run/")
# parser = SwiftLGParser("St Edmundsbury", "Bury St Edmunds", "http://www.stedmundsbury.gov.uk/swiftlg/apas/run/")
# parser = MacclesfieldParser("Macclesfield", "Macclesfield", "http://www.planportal.macclesfield.gov.uk/swiftlg/apas/run/")
parser = SwiftLGParser("Daventry District Council", "Daventry", "http://212.125.73.214/swiftlg/apas/run/wphappcriteria.display")
# parser = SwiftLGParser("Warrington Borough Council", "Warrington", "http://212.248.237.123:8080/swiftlg/apas/run/wphappcriteria.display")
# parser = CannockChaseParser("Cannock Chase District Council", "Cannock Chase", "http://planning.cannockchasedc.com/swiftlg/apas/run/wphappcriteria.display")
# parser = SwiftLGParser("London Borough of Enfield", "Enfield", "http://forms.enfield.gov.uk/swiftlg/apas/run/wphappcriteria.display")
print parser.getResults(12,6,2009)
# To Do:
#1) Check out comment url on Maidstone
#2) Daventry, when it is back up.
#3) Work out what goes wrong with Gwynedd on 06/11/2007