def get_paper(self, paper_url=None, paper_id=None):
"""
Load paper details for the paper given by detail page URL
or numeric ID
"""
paper_url = '%svo020.asp?VOLFDNR=%s' % (self.config.BASE_URL, paper_id)
logging.info("Getting paper %d from %s", paper_id, paper_url)
# stupid re-try concept because AllRis sometimes misses start < at tags at first request
try_counter = 0
while True:
try:
response = self.get_url(paper_url)
if not response:
return
if "noauth" in response.url:
logging.warn("Paper %s in %s seems to private" % (paper_id, paper_url))
return
text = self.preprocess_text(response.text)
doc = html.fromstring(text)
data = {}
# Beratungsfolge-Table checken
table = self.table_css(doc)[0] # lets hope we always have this table
self.consultation_list_start = False
last_headline = ''
for line in table:
if line.tag == 'tr':
headline = line[0].text
elif line.tag == 'td':
headline = line.text
else:
logging.error("ERROR: Serious error in data table. Unable to parse.")
if headline:
headline = headline.split(":")[0].lower()
if headline[-1]==":":
headline = headline[:-1]
if headline == "betreff":
value = line[1].text_content().strip()
value = value.split("-->")[1] # there is some html comment with a script tag in front of the text which we remove
data[headline] = " ".join(value.split()) # remove all multiple spaces from the string
elif headline in ['verfasser', u'federführend', 'drucksache-art']:
data[headline] = line[1].text.strip()
elif headline in ['status']:
data[headline] = line[1].text.strip()
# related papers
if len(line) > 2:
if len(line[3]):
# gets identifier. is there something else at this position? (will break)
data['paper'] = [{'paper': Paper(numeric_id=line[3][0][0][1][0].get('href').split('=')[1].split('&')[0] , identifier=line[3][0][0][1][0].text)}]
elif headline == "beratungsfolge":
# the actual list will be in the next row inside a table, so we only set a marker
data = self.parse_consultation_list_headline(line, data) # for parser which have the consultation list here
elif self.consultation_list_start:
data = self.parse_consultation_list(line, data) # for parser which have the consultation list in the next tr
self.consultation_list_start = False # set the marker to False again as we have read it
last_headline = headline
# we simply ignore the rest (there might not be much more actually)
# the actual text comes after the table in a div but it's not valid XML or HTML this using regex
data['docs'] = self.body_re.findall(response.text)
first_date = False
for single_consultation in data['consultation']:
if first_date:
if single_consultation['date'] < first_date:
first_date = single_consultation['date']
else:
first_date = single_consultation['date']
paper = Paper(numeric_id = paper_id)
paper.original_url = paper_url
paper.title = data['betreff']
paper.description = data['docs']
paper.type = data['drucksache-art']
if first_date:
paper.date = first_date.strftime("%Y-%m-%d")
if 'identifier' in data:
paper.identifier = data['identifier']
paper.document = []
# get the attachments step 1 (Drucksache)
document_1 = self.attachment_1_css(doc)
if len(document_1):
if document_1[0].value:
href = '%sdo027.asp' % self.config.BASE_URL
identifier = document_1[0].value
title = 'Drucksache'
document = Document(
identifier=identifier,
numeric_id=int(identifier),
title=title)
document = self.get_document_file(document, href, True)
paper.document.append({'document': document, 'relation': 'misc'})
# get the attachments step 2 (additional attachments)
documents = self.attachments_css(doc)
if len(documents) > 0:
if len(documents[0]) > 1:
if documents[0][1][0].text.strip() == "Anlagen:":
for tr in documents[0][2:]:
link = tr[0][0]
href = "%s%s" % (self.config.BASE_URL, link.attrib["href"])
title = link.text
identifier = str(int(link.attrib["href"].split('/')[4]))
document = Document(
identifier=identifier,
numeric_id=int(identifier),
title=title)
document = self.get_document_file(document, href)
paper.document.append({'document': document, 'relation': 'misc'})
oid = self.db.save_paper(paper)
return
except (KeyError, IndexError):
if try_counter < 3:
logging.info("Try again: Getting paper %d from %s", paper_id, paper_url)
try_counter += 1
else:
logging.error("Failed getting paper %d from %s", paper_id, paper_url)
return
def get_paper(self, paper_url=None, paper_id=None):
"""
Load paper details for the paper given by detail page URL
or numeric ID
"""
# Read either paper_id or paper_url from the opposite
if paper_id is not None:
paper_url = self.urls['SUBMISSION_DETAIL_PRINT_PATTERN'] % paper_id
elif paper_url is not None:
parsed = parse.search(self.urls['SUBMISSION_DETAIL_PARSE_PATTERN'], paper_url)
paper_id = parsed['paper_id']
logging.info("Getting paper %d from %s", paper_id, paper_url)
paper = Paper(numeric_id=paper_id)
try_until = 1
try_counter = 0
try_found = False
while (try_counter < try_until):
try_counter += 1
try_found = False
time.sleep(self.config.WAIT_TIME)
try:
response = self.user_agent.open(paper_url)
except urllib2.HTTPError, e:
if e.code == 404:
sys.stderr.write("URL not found (HTTP 404) error caught: %s\n" % paper_url)
sys.stderr.write("Please check BASE_URL in your configuration.\n")
sys.exit(1)
elif e.code == 502:
try_until = 4
try_found = True
if try_until == try_counter:
logging.error("Permanent error in %s after 4 retrys.", paper_url)
return
else:
logging.info("Original RIS Server Bug, restart scraping paper %s", paper_url)
mechanize_forms = mechanize.ParseResponse(response, backwards_compat=False)
response.seek(0)
html = response.read()
html = html.replace(' ', ' ')
parser = etree.HTMLParser()
dom = etree.parse(StringIO(html), parser)
# Hole die Seite noch einmal wenn unbekannter zufällig auftretender Fehler ohne Fehlermeldung ausgegeben wird (gefunden in Duisburg, vermutlich kaputte Server Config)
try:
page_title = dom.xpath('//h1')[0].text
if 'Fehler' in page_title:
try_until = 4
try_found = True
if try_until == try_counter:
logging.error("Permanent error in %s after 3 retrys, proceed.", paper_url)
else:
logging.info("Original RIS Server Bug, restart scraping paper %s", paper_url)
except:
pass
if (try_found == False):
# check for page errors
try:
if 'Fehlermeldung' in page_title:
logging.info("Page %s cannot be accessed due to server error", paper_url)
return
if 'Berechtigungsfehler' in page_title:
logging.info("Page %s cannot be accessed due to permissions", paper_url)
return
except:
pass
paper.original_url = paper_url
paper_related = []
# Paper title
try:
stitle = dom.xpath(self.xpath['SUBMISSION_DETAIL_TITLE'])
paper.title = stitle[0].text
except:
logging.critical('Cannot find paper title element using XPath SUBMISSION_DETAIL_TITLE')
raise TemplateError('Cannot find paper title element using XPath SUBMISSION_DETAIL_TITLE')
# Submission identifier, date, type etc
tds = dom.xpath(self.xpath['SUBMISSION_DETAIL_IDENTIFIER_TD'])
if len(tds) == 0:
logging.critical('Cannot find table fields using XPath SUBMISSION_DETAIL_IDENTIFIER_TD')
logging.critical('HTML Dump:' + html)
raise TemplateError('Cannot find table fields using XPath SUBMISSION_DETAIL_IDENTIFIER_TD')
else:
current_category = None
for n in range(0, len(tds)):
try:
tdcontent = tds[n].text.strip()
except:
continue
if tdcontent == 'Name:':
paper.identifier = tds[n + 1].text.strip()
elif tdcontent == 'Art:':
paper.type = tds[n + 1].text.strip()
elif tdcontent == 'Datum:':
paper.date = tds[n + 1].text.strip()
elif tdcontent == 'Name:':
paper.identifier = tds[n + 1].text.strip()
elif tdcontent == 'Betreff:':
paper.subject = '; '.join(tds[n + 1].xpath('./text()'))
elif tdcontent == 'Aktenzeichen:':
paper.reference_number = tds[n + 1].text.strip()
elif tdcontent == 'Referenzvorlage:':
link = tds[n + 1].xpath('a')[0]
href = link.get('href')
parsed = parse.search(self.urls['SUBMISSION_DETAIL_PARSE_PATTERN'], href)
superordinated_paper = Paper(numeric_id=parsed['paper_id'], identifier=link.text.strip())
paper_related.append({ 'relation': 'superordinated',
'paper': superordinated_paper})
# add superordinate paper to queue
if hasattr(self, 'paper_queue'):
self.paper_queue.add(parsed['paper_id'])
# subordinate papers are added to the queue
elif tdcontent == 'Untergeordnete Vorlage(n):':
current_category = 'subordinates'
for link in tds[n + 1].xpath('a'):
href = link.get('href')
parsed = parse.search(self.urls['SUBMISSION_DETAIL_PARSE_PATTERN'], href)
subordinated_paper = Paper(numeric_id=parsed['paper_id'], identifier=link.text.strip())
paper_related.append({ 'relation': 'subordinated',
'paper': subordinated_paper})
if hasattr(self, 'paper_queue') and parsed is not None:
# add subordinate paper to queue
self.paper_queue.add(parsed['paper_id'])
else:
if current_category == 'subordinates' and len(tds) > n+1:
for link in tds[n + 1].xpath('a'):
href = link.get('href')
parsed = parse.search(self.urls['SUBMISSION_DETAIL_PARSE_PATTERN'], href)
subordinated_paper = Paper(numeric_id=parsed['paper_id'], identifier=link.text.strip())
paper_related.append({ 'relation': 'subordinated',
'paper': subordinated_paper})
if hasattr(self, 'paper_queue') and parsed is not None:
self.paper_queue.add(parsed['paper_id'])
if len(paper_related):
paper.paper = paper_related
if not hasattr(paper, 'identifier'):
logging.critical('Cannot find paper identifier using SESSION_DETAIL_IDENTIFIER_TD_XPATH')
raise TemplateError('Cannot find paper identifier using SESSION_DETAIL_IDENTIFIER_TD_XPATH')
# "Beratungsfolge"(list of sessions for this paper)
# This is currently not parsed for scraping, but only for
# gathering session-document ids for later exclusion
found_documents = []
rows = dom.xpath(self.xpath['SUBMISSION_DETAIL_AGENDA_ROWS'])
for row in rows:
# find forms
formfields = row.xpath('.//input[@type="hidden"][@name="DT"]')
for formfield in formfields:
document_id = formfield.get('value')
if document_id is not None:
found_documents.append(document_id)
# find links
links = row.xpath('.//a[contains(@href,"getfile.")]')
for link in links:
if not link.xpath('.//img'):
file_link = self.config.BASE_URL + link.get('href')
document_id = file_link.split('id=')[1].split('&')[0]
found_documents.append(document_id)
# paper-related documents
documents = []
paper.document = []
containers = dom.xpath(self.xpath['SUBMISSION_DETAIL_ATTACHMENTS'])
for container in containers:
try:
classes = container.get('class').split(' ')
except:
continue
if self.xpath['SUBMISSION_DETAIL_ATTACHMENTS_CONTAINER_CLASSNAME'] not in classes:
continue
rows = container.xpath('.//tr')
for row in rows:
# seems that we have direct links
if not row.xpath('.//form'):
links = row.xpath('.//a')
for link in links:
# ignore additional pdf icon links
if not link.xpath('.//img'):
title = ' '.join(link.xpath('./text()')).strip()
file_link = self.config.BASE_URL + link.get('href')
document_id = file_link.split('id=')[1].split('&')[0]
if document_id in found_documents:
continue
document = Document(
identifier=document_id,
numeric_id=document_id,
title=title,
original_url=file_link)
document = self.get_document_file(document=document, link=file_link)
if 'Einladung' in title:
document_type = 'invitation'
elif 'Niederschrift' in title:
document_type = 'results_protocol'
else:
document_type = 'misc'
paper.document.append({'relation': document_type, 'document': document})
found_documents.append(document_id)
# no direct link, so we have to handle forms
else:
forms = row.xpath('.//form')
for form in forms:
title = " ".join(row.xpath('./td/text()')).strip()
for hidden_field in form.xpath('input[@name="DT"]'):
document_id = hidden_field.get('value')
if document_id in found_documents:
continue
document = Document(
identifier=document_id,
numeric_id=document_id,
title=title)
# Traversing the whole mechanize response to submit this form
for mform in mechanize_forms:
for control in mform.controls:
if control.name == 'DT' and control.value == document_id:
document = self.get_document_file(document=document, form=mform)
if 'Einladung' in title:
document_type = 'invitation'
elif 'Niederschrift' in title:
document_type = 'results_protocol'
else:
document_type = 'misc'
paper.document.append({'relation': document_type, 'document': document})
found_documents.append(document_id)
if len(documents):
paper.document = documents
# forcing overwrite=True here
oid = self.db.save_paper(paper)