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karnataka.py
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karnataka.py
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import utils
import urllib
import tempfile
import re
import os
class Karnataka(utils.BaseCourt):
def __init__(self, srcdir, rawdir, metadir, statsdir, updateMeta = False):
utils.BaseCourt.__init__(self, srcdir, rawdir, metadir, statsdir, updateMeta)
self.baseurl = 'http://judgmenthck.kar.nic.in'
self.courturl = urllib.basejoin(self.baseurl, '/judgments/')
self.cookiefile = tempfile.NamedTemporaryFile()
self.get_cookies()
def get_cookies(self):
self.download_url(self.courturl, savecookies = self.cookiefile.name)
def action_on_link(self, link, linktitle):
if re.match('/judgments/handle', link):
return 'judgmentlink'
elif re.match('/judgments/bitstream.+pdf', link):
return 'save'
elif re.match('next', linktitle, re.IGNORECASE):
return 'recurse'
return 'ignore'
def download_oneday(self, relpath, dateobj):
getdata = [('type', 'datecreated'), ('order', 'ASC'), ('rpp', '20'), \
('value', utils.dateobj_to_str(dateobj, '-', reverse = True))]
url = self.courturl + 'browse?' + \
'&'.join(['%s=%s' % (x[0], x[1]) for x in getdata])
return self.result_page(relpath, url, dateobj, {})
def get_judgment(self, relpath, url, filename, metainfo):
relurl = os.path.join(relpath, filename)
filepath = os.path.join(self.rawdir, relurl)
metapath = os.path.join(self.metadir, relurl)
if not os.path.exists(filepath):
webpage = self.download_url(url, loadcookies = self.cookiefile.name)
if not webpage:
self.logger.warning(u'Could not download judgment %s' % url)
return None
utils.save_file(filepath, webpage)
self.logger.info(u'Saved %s' % filepath)
if os.path.exists(filepath):
if self.updateMeta or not os.path.exists(metapath):
metainfo['url'] = url
utils.print_tag_file(metapath, metainfo)
return relurl
else:
return None
def get_meta_info(self, d, dateobj):
metainfo = { 'date': utils.date_to_xml(dateobj) }
trs = d.findAll('tr')
for tr in trs:
tds = tr.findAll('td')
i = 0
tdtype = None
for td in tds[:-1]:
content = utils.get_tag_contents(td)
if re.search('Case Number', content):
tdtype = 'caseno'
break
if re.search('Judge', content):
tdtype = 'author'
break
if re.search('Petitioner', content):
tdtype = 'petitioner'
break
if re.search('Respondent', content):
tdtype = 'respondent'
break
if re.search('Location', content):
tdtype = 'location'
break
i += 1
if tdtype and i + 1 < len(tds):
content = utils.get_tag_contents(td)
metainfo[tdtype] = utils.get_tag_contents(tds[i+1])
return metainfo
def process_judgment_page(self, relpath, url, dateobj):
webpage = self.download_url(url, loadcookies = self.cookiefile.name)
if not webpage:
self.logger.warning(u'Could not download %s' % url)
return None
d = utils.parse_webpage(webpage)
if not d:
self.logger.warning(u'Could not parse %s' % url)
return None
metainfo = self.get_meta_info(d, dateobj)
for link in d.findAll('a'):
href = link.get('href')
title = utils.get_tag_contents(link)
if (not href) or (not title):
self.logger.warning(u'Could not process %s' % link)
continue
action = self.action_on_link(href, title)
newurl = urllib.basejoin(url, href)
if action == 'save':
self.logger.info(u'Downloading %s' % newurl)
return self.get_judgment(relpath, newurl, title, metainfo)
return None
def result_page(self, relpath, url, dateobj, linkdict):
newdls = []
webpage = self.download_url(url, loadcookies = self.cookiefile.name)
d = utils.parse_webpage(webpage)
if not d:
self.logger.error(u'Could not parse html of the result page for date %s' % dateobj)
return newdls
for link in d.findAll('a'):
href = link.get('href')
title = utils.get_tag_contents(link)
if (not href) or (not title) or linkdict.has_key(href):
self.logger.warning(u'Could not process %s' % link)
continue
linkdict[href] = 1
action = self.action_on_link(href, title)
self.logger.info(u'Action %s on link %s title %s' %\
(action, href, title))
newurl = urllib.basejoin(url, href)
if action == 'judgmentlink':
relurl = self.process_judgment_page(relpath, newurl, dateobj)
if relurl:
newdls.append(relurl)
else:
self.logger.warning(u'Judgment link not working %s' % newurl)
elif action == 'recurse':
newdls.extend(self.result_page(relpath, newurl, dateobj,
linkdict))
return newdls