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oc.py
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oc.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (c) 2016, Silvio Peroni <essepuntato@gmail.com>
#
# Permission to use, copy, modify, and/or distribute this software for any purpose
# with or without fee is hereby granted, provided that the above copyright notice
# and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
# REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
# FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT,
# OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
# DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
# ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
# SOFTWARE.
__author__ = 'essepuntato'
import web
import json
from src.wl import WebLogger
from src.rrh import RewriteRuleHandler
from src.ldd import LinkedDataDirector
from src.ved import VirtualEntityDirector
from src.ramose import APIManager, Operation, HTMLDocumentationHandler
from src.oci import OCIManager
from src.intrepid import InTRePIDManager
import requests
import urllib.parse as urlparse
import urllib.request as urllib
import re
import csv
from datetime import datetime
from os import path
from os import listdir
from os import urandom
from io import StringIO
from hashlib import sha1
from urllib.parse import unquote, parse_qs
from redis import Redis
import uuid
import smtplib
from email.mime.multipart import MIMEMultipart
from email.mime.text import MIMEText
from prometheus_client import Counter, CollectorRegistry, generate_latest, Gauge, Info
from prometheus_client.parser import text_fd_to_metric_families
# Load the configuration file
with open("conf.json") as f:
c = json.load(f)
with open(c["auth_file"]) as f:
c_auth = json.load(f)
c_smtp = c_auth["smtp"]
c_captcha = c_auth["captcha"]
pages = [
{"name": "", "label": "Home"},
{"name": "about", "label": "About"},
{"name": "membership", "label": "Help us"},
{"name": "model", "label": "Data Model"},
{"name": "datasets", "label": "Datasets"},
{"name": "querying", "label": "Querying Data"},
{"name": "tools", "label": "Tools"},
{"name": "download", "label": "Download"},
{"name": "publications", "label": "Publications"}
]
active = {
"corpus": "datasets",
"index": "datasets",
"meta": "datasets",
"coci": "datasets",
"doci": "datasets",
"poci": "datasets",
"croci": "datasets",
"ccc": "datasets",
"oci": "tools",
"intrepid": "tools",
"api": "querying",
"sparql": "querying",
"search": "querying"
}
urls = (
# Generic URLs
"/", "Home",
"/(wikidata)(/api/.+)", "Api",
"/(index)(/api/.+)", "Api",
"/index/([^/]+)(/api/.+)", "Api",
"/index/sparql", "SparqlIndex",
"/index/search", "SearchIndex",
"/index/browser/(.+)", "BrowserIndex",
"/index/coci", "Coci",
"/index/doci", "Doci",
"/index/poci", "Poci",
"/index/croci", "Croci",
"/index/(.*)?", "IndexContentNegotiation",
# META related urls
"/(meta)(/api/.+)", "Api",
"/meta/sparql", "SparqlMeta",
"/meta/(../.+)", "MetaContentNegotiation",
"/meta", "Meta",
# CCC related urls
"/(ccc)(/api/.+)", "Api",
"/ccc", "CCC",
"/ccc/sparql", "SparqlCCC",
"/ccc/search", "SearchCCC",
"/ccc/browser/(.+)", "BrowserCCC",
"/ccc/(../.+)", "CCCContentNegotiation",
"/(about)", "About",
"/(model)", "Model",
"/(datasets)", "Datasets",
"/corpus", "Corpus",
"/corpus/(.+)", "CorpusContentNegotiation",
"/corpus/", "CorpusContentNegotiation",
"/virtual/(.+)", "Virtual",
"/oci(/.+)?", "OCI",
"/intrepid(/.+)?", "InTRePID",
"/(download)", "Download",
"/(policy)", "Policy",
# Legacy pages
"/(download)_legacy", "DownloadLegacy",
# OCC SPARQL-related urls > all redirected to Index
"/sparql", "SparqlIndex",
"/search", "SearchIndex",
"/browser/(.+)", "BrowserIndex",
"()(/api/.+)", "Api",
# Other generic URLs
"/(tools)", "Tools",
"/(membership)", "Membership",
"/(querying)", "Querying",
"/(publications)", "Publications",
"/(licenses)", "Licenses",
"(/paper/.+)", "RawGit",
"/index", "Index",
"/robots.txt", "Robots",
# Statistics
"/(statistics)", "StatisticsIndex",
"/statistics/(.+)", "Statistics",
# Token
"/accesstoken", "AuthCode",
"/accesstoken/(.+)", "AuthCodeConfirm",
)
render = web.template.render(c["html"])
#set auto reload of html template
web.config["TEMPLATES_AUTO_RELOAD"] = True
rewrite = RewriteRuleHandler(
"Redirect",
[
("^/corpus/context.json$",
"https://raw.githubusercontent.com/opencitations/corpus/master/context.json",
True),
("^/ontology/?$",
"https://w3id.org/oc/ontology",
True),
("^/ontology.html$",
"https://w3id.org/oc/ontology.html",
True),
("^/ontology.json",
"https://w3id.org/oc/ontology.json",
True),
("^/ontology.rdf",
"https://w3id.org/oc/ontology.xml",
True),
("^/ontology.ttl",
"https://w3id.org/oc/ontology.ttl",
True),
("^/bcite",
"http://212.47.249.17",
True),
("^/index/coci/sparql",
"/index/sparql",
True),
("^/index/doci/sparql",
"/index/sparql",
True),
("^/index/poci/sparql",
"/index/sparql",
True),
("^/index/croci/sparql",
"/index/sparql",
True),
("^/index/coci/search",
"/index/search",
True),
("^/index/doci/search",
"/index/search",
True),
("^/index/poci/search",
"/index/search",
True),
("^/index/croci/search",
"/index/search",
True),
("^/contacts",
"/about",
True),
("^/donate",
"/membership",
True)
],
urls
)
# Set the web logger
web_logger = WebLogger("opencitations.net", c["log_dir"], [
"REMOTE_ADDR", # The IP address of the visitor
"HTTP_USER_AGENT", # The browser type of the visitor
"HTTP_REFERER", # The URL of the page that called your program
"HTTP_HOST", # The hostname of the page being attempted
"REQUEST_URI", # The interpreted pathname of the requested document
# or CGI (relative to the document root)
"HTTP_AUTHORIZATION", # Access token
],
# comment this line only for test purposes
{"REMOTE_ADDR": ["130.136.130.1", "130.136.2.47", "127.0.0.1"]}
)
meta_api_manager = APIManager(c["api_meta"])
meta_doc_manager = HTMLDocumentationHandler(meta_api_manager)
doci_api_manager = APIManager(c["api_doci"])
doci_doc_manager = HTMLDocumentationHandler(doci_api_manager)
poci_api_manager = APIManager(c["api_poci"])
poci_doc_manager = HTMLDocumentationHandler(poci_api_manager)
coci_api_manager = APIManager(c["api_coci"])
coci_doc_manager = HTMLDocumentationHandler(coci_api_manager)
#coci_api_manager_v2 = APIManager(c["api_coci_v2"])
#coci_doc_manager_v2 = HTMLDocumentationHandler(coci_api_manager_v2)
croci_api_manager = APIManager(c["api_croci"])
croci_doc_manager = HTMLDocumentationHandler(croci_api_manager)
index_api_manager = APIManager(c["api_index"])
index_doc_manager = HTMLDocumentationHandler(index_api_manager)
index_api_manager_v2 = APIManager(c["api_index_v2"])
index_doc_manager_v2 = HTMLDocumentationHandler(index_api_manager_v2)
occ_api_manager = APIManager(c["api_occ"])
occ_doc_manager = HTMLDocumentationHandler(occ_api_manager)
wikidata_api_manager = APIManager(c["api_wikidata"])
wikidata_doc_manager = HTMLDocumentationHandler(wikidata_api_manager)
ccc_api_manager = APIManager(c["api_ccc"])
ccc_doc_manager = HTMLDocumentationHandler(ccc_api_manager)
rconn = Redis(host=c_auth["redis"]["host"],
port=c_auth["redis"]["port"], db=c_auth["redis"]["db"])
app = web.application(rewrite.get_urls(), globals())
session = web.session.Session(app, web.session.DiskStore(
"sessions"), initializer={"csrf": None})
def refreshCSRF():
session.csrf = sha1(urandom(64)).hexdigest()
def validateAccessToken():
auth_code = web.ctx.env.get('HTTP_AUTHORIZATION')
if not auth_code is None:
val = rconn.get(auth_code)
if val is None or val != b'1':
raise web.HTTPError(
"403 ",
{
"Content-Type": "text/plain"
},
"The access token provided is not valid."
)
def sendEmail(recipient, subject, body):
sender = c_smtp["email"]
if not isinstance(recipient, list):
recipient = [recipient]
message = MIMEMultipart('alternative')
message['Subject'] = subject
message['From'] = sender
message['To'] = ", ".join(recipient)
html_body = MIMEText(body, 'html')
message.attach(html_body)
#Define SMTP
server = smtplib.SMTP(c_smtp["address"], c_smtp["port"])
server.starttls()
server.login(sender, c_smtp["password"])
#Send email
server.sendmail(sender, recipient, message.as_string())
server.close()
class AuthCodeConfirm:
def GET(self, token):
check = rconn.get(token)
if check is None or check != b'2':
auth_code = None
else:
rconn.delete(token)
rconn.set(token, 1)
auth_code = token
return render.accesstokenconfirm(pages, active, auth_code, c_auth["messages"]["accesstokenconfirm"])
class AuthCode:
def __init__(self):
self.__rgx = r'\b[A-Za-z0-9._%+-]+@[A-Za-z0-9.-]+\.[A-Z|a-z]{2,}\b'
def GET(self):
refreshCSRF()
web_logger.mes()
return render.accesstoken(pages, active, c_captcha["PUBKEY"], None, session.csrf, c_auth["messages"]["accesstoken"])
def POST(self):
data = web.input()
session_csrf = session.csrf
refreshCSRF()
# Validate email
email = data.tokenEmail
if not re.fullmatch(self.__rgx, email):
return render.accesstoken(pages, active, c_captcha["PUBKEY"], c_auth["messages"]["accesstoken"]["invalid_email"], session.csrf, c_auth["messages"]["accesstoken"])
# Validate recaptcha
recaptcha = data['g-recaptcha-response']
params = urlparse.urlencode({
'secret': c_captcha["PRVKEY"],
'response': recaptcha,
})
data_res = urllib.urlopen(
'https://www.google.com/recaptcha/api/siteverify', params.encode('utf-8')).read()
result = json.loads(data_res.decode('utf-8'))
success = result.get('success', None)
if not success == True:
return render.accesstoken(pages, active, c_captcha["PUBKEY"], c_auth["messages"]["accesstoken"]["invalid_captcha"], session.csrf, c_auth["messages"]["accesstoken"])
# CSFR Attack
csrf = data.csrf
#if csrf != session_csrf:
# return render.accesstoken(pages, active, c_captcha["PUBKEY"], c_auth["messages"]["accesstoken"]["invalid_form"], session.csrf, c_auth["messages"]["accesstoken"])
# Generate temporary token
token = str(uuid.uuid4())
while not rconn.get(token) is None:
token = str(uuid.uuid4())
rconn.set(token, 2, ex=3600)
email_msg = c_auth["messages"]["email"]
email_link = c["oc_base_url"]+"/accesstoken/" + token
sendEmail(email, email_msg["title"], """\
<html>
<head></head>
<body>
<div style="text-align: center">
<img width=100 src='%s'>
<h2><font color="#AA53FD">Access-Token</font> <font color="#3C40E5">Request</font></h2>
<br>
%s<br>
<h3>%s <a href='%s' style="background-color:#AA53FD;color:white;padding:8px;border-radius:3px;">%s</a></h3>
%s<br><br>
</div>
%s
<br><br>
%s %s</body>
</html>
""" % (
"https://raw.githubusercontent.com/opencitations/logo/master/logo-transparent.png",
email_msg["description"],
email_msg["token"],
email_link,
email_msg["token_button"],
email_msg["ignore"],
email_msg["signature"],
email_msg["html_message"],
email_link
))
return render.accesstokensuccess(pages, active, c_auth["messages"]["accesstokensuccess"])
class RawGit:
def GET(self, u):
web_logger.mes()
raise web.seeother(
"http://rawgit.com/essepuntato/opencitations/master" + u)
class Robots:
def GET(self):
web.header('Access-Control-Allow-Origin', '*')
web.header('Access-Control-Allow-Credentials', 'true')
web.header('Content-Type', "text/plain")
return "user-agent: %s\n" \
"disallow: /corpus/\ndisallow: /virtual/\ndisallow: /index/coci/\n\n" \
"user-agent: %s\n" \
"disallow: /" % ("\nuser-agent: ".join(
c["robots"]), "\nuser-agent: ".join(c["robots-all"]))
class Redirect:
def GET(self, u):
web_logger.mes()
raise web.seeother(rewrite.rewrite(u))
class WorkInProgress:
def GET(self, active):
web_logger.mes()
return render.wip(pages, active)
class Querying:
def GET(self, active):
web_logger.mes()
return render.querying(pages, active)
class Tools:
def GET(self, active):
web_logger.mes()
return render.tools(pages, active)
class Membership:
def GET(self, active):
web_logger.mes()
return render.membership(pages, active)
class Home:
def GET(self):
web_logger.mes()
return render.home(pages, "")
class Api:
def OPTIONS(self, dataset, call):
# remember to remove the slash at the end
org_ref = web.ctx.env.get('HTTP_REFERER')
if org_ref is not None:
org_ref = org_ref[:-1]
else:
org_ref = "*"
web.header('Access-Control-Allow-Origin', org_ref)
web.header('Access-Control-Allow-Credentials', 'true')
web.header('Access-Control-Allow-Methods', '*')
web.header('Access-Control-Allow-Headers', 'Authorization')
def GET(self, dataset, call):
validateAccessToken()
man = None
if dataset == "":
dataset = "index"
#man = occ_api_manager
#doc = occ_doc_manager
if dataset == "coci":
man = coci_api_manager
doc = coci_doc_manager
#if "v2" in call:
# man = coci_api_manager_v2
# doc = coci_doc_manager_v2
elif dataset == "doci":
man = doci_api_manager
doc = doci_doc_manager
elif dataset == "poci":
man = poci_api_manager
doc = poci_doc_manager
elif dataset == "croci":
man = croci_api_manager
doc = croci_doc_manager
elif dataset == "index":
man = index_api_manager
doc = index_doc_manager
if "v2" in call:
man = index_api_manager_v2
doc = index_doc_manager_v2
elif dataset == "wikidata":
man = wikidata_api_manager
doc = wikidata_doc_manager
elif dataset == "ccc":
man = ccc_api_manager
doc = ccc_doc_manager
elif dataset == "meta":
man = meta_api_manager
doc = meta_doc_manager
if man is None:
raise web.notfound()
else:
if re.match("^/api/v[1-9][0-9]*/?$", call):
# remember to remove the slash at the end
org_ref = web.ctx.env.get('HTTP_REFERER')
if org_ref is not None:
org_ref = org_ref[:-1]
else:
org_ref = "*"
web.header('Access-Control-Allow-Origin', org_ref)
web.header('Access-Control-Allow-Credentials', 'true')
web.header('Content-Type', "text/html")
web.header('Access-Control-Allow-Methods', '*')
web.header('Access-Control-Allow-Headers', 'Authorization')
web_logger.mes()
return doc.get_documentation()[1]
else:
content_type = web.ctx.env.get('HTTP_ACCEPT')
if content_type is not None and "text/csv" in content_type:
content_type = "text/csv"
else:
content_type = "application/json"
operation_url = call + unquote(web.ctx.query)
op = man.get_op(operation_url)
if type(op) is Operation:
status_code, res, c_type = op.exec(
content_type=content_type)
if status_code == 200:
# remember to remove the slash at the end
org_ref = web.ctx.env.get('HTTP_REFERER')
if org_ref is not None:
org_ref = org_ref[:-1]
else:
org_ref = "*"
web.header('Access-Control-Allow-Origin', org_ref)
web.header('Access-Control-Allow-Credentials', 'true')
web.header('Content-Type', c_type)
web.header('Access-Control-Allow-Methods', '*')
web.header('Access-Control-Allow-Headers',
'Authorization')
web_logger.mes()
return res
else:
try:
with StringIO(res) as f:
if content_type == "text/csv":
mes = next(csv.reader(f))[0]
else:
mes = json.dumps(
next(csv.DictReader(f)), ensure_ascii=False)
raise web.HTTPError(
str(status_code)+" ", {"Content-Type": content_type}, mes)
except:
raise web.HTTPError(
str(status_code)+" ", {"Content-Type": content_type}, str(res))
else:
raise web.HTTPError(
"404 ", {"Content-Type": content_type}, "No API operation found at URL '%s'" % call)
class Policy:
def GET(self, active):
web_logger.mes()
return render.policy(pages, active)
class About:
def GET(self, active):
web_logger.mes()
return render.about(pages, active)
class Corpus:
def GET(self):
web_logger.mes()
cur_date = "January 1, 1970"
cur_tot = "0"
cur_cit = "0"
cur_cited = "0"
if path.exists(c["statistics"]):
with open(c["statistics"]) as f:
lastrow = None
for lastrow in csv.reader(f):
pass
cur_date = datetime.strptime(
lastrow[0], "%Y-%m-%dT%H:%M:%S").strftime("%B %d, %Y")
cur_tot = lastrow[5]
cur_cit = lastrow[2]
cur_cited = lastrow[6]
return render.corpus(pages, active["corpus"], cur_date, cur_tot, cur_cit, cur_cited)
class OCI:
def GET(self, oci):
data = web.input()
if "oci" in data:
clean_oci = re.sub("\s+", "", re.sub("^oci:", "",
data.oci.strip(), flags=re.IGNORECASE))
cur_format = ".rdf"
if "format" in data:
cur_format = "." + data.format.strip().lower()
raise web.seeother(c["oc_base_url"]
+ "/oci/" + clean_oci + cur_format)
elif oci is None or oci.strip() == "":
web_logger.mes()
return render.oci(pages, active["oci"])
else:
web_logger.mes()
clean_oci, ex = re.findall(
"^([^\.]+)(\.[a-z]+)?$", oci.strip().lower())[0]
exs = (".csv", ".json", ".scholix",
".jsonld", ".ttl", ".nt", ".xml")
if ex in exs:
cur_format = ex[1:]
om_conf = c["ved_conf"]
om = OCIManager(
"oci:" + clean_oci[1:], om_conf["lookup"], om_conf["oci_conf"])
cit = om.get_citation_data(cur_format)
if cit:
if cur_format == "csv":
ct_header = "text/csv"
elif cur_format == "jsonld":
ct_header = "application/ld+json"
elif cur_format == "ttl":
ct_header = "text/turtle"
elif cur_format == "nt":
ct_header = "application/n-triples"
elif cur_format == "xml":
ct_header = "application/rdf+xml"
else:
ct_header = "application/json"
web.header('Access-Control-Allow-Origin', '*')
web.header('Access-Control-Allow-Credentials', 'true')
web.header('Content-Type', ct_header)
return cit
else:
raise web.seeother(c["oc_base_url"]
+ c["virtual_local_url"] + "ci" + clean_oci)
class InTRePID:
def GET(self, intrepid):
data = web.input()
if "intrepid" in data:
clean_intrepid = re.sub(
"\s+", "", re.sub("^intrepid:", "", data.intrepid.strip(), flags=re.IGNORECASE))
om_conf = c["ved_conf"]
im = InTRePIDManager("intrepid:" + clean_intrepid,
om_conf["lookup"], om_conf["intrepid_conf"])
rp = im.execute_query()
raise web.seeother(c["oc_base_url"]
+ c["ccc_local_url"] + rp.split("/ccc/")[1])
elif intrepid is None or intrepid.strip() == "":
web_logger.mes()
return render.intrepid(pages, active["intrepid"])
else:
web_logger.mes()
clean_intrepid, ex = re.findall(
"^([^\.]+)(\.[a-z]+)?$", intrepid.strip().lower())[0]
exs = (".jsonld", ".ttl", ".nt", ".xml")
if ex in exs:
cur_format = ex[1:]
om_conf = c["ved_conf"]
im = InTRePIDManager(
"intrepid:" + clean_intrepid, om_conf["lookup"], om_conf["intrepid_conf"])
rp = im.get_rp_data(cur_format)
if rp:
if cur_format == "jsonld":
ct_header = "application/ld+json"
elif cur_format == "ttl":
ct_header = "text/turtle"
elif cur_format == "nt":
ct_header = "application/n-triples"
else:
ct_header = "application/rdf+xml"
web.header('Access-Control-Allow-Origin', '*')
web.header('Access-Control-Allow-Credentials', 'true')
web.header('Content-Type', ct_header)
return rp
else:
om_conf = c["ved_conf"]
im = InTRePIDManager(
"intrepid:" + clean_intrepid[1:], om_conf["lookup"], om_conf["intrepid_conf"])
rp = im.execute_query()
raise web.seeother(c["oc_base_url"]
+ c["ccc_local_url"] + rp.split("/ccc/")[1])
class Index:
def GET(self):
web_logger.mes()
return render.index(pages, active["index"])
class CCC:
def GET(self):
web_logger.mes()
return render.ccc(pages, active["ccc"])
class Meta:
def GET(self):
web_logger.mes()
return render.meta(pages, active["meta"])
class Coci:
def GET(self):
web_logger.mes()
return render.coci(pages, active["coci"])
class Doci:
def GET(self):
web_logger.mes()
return render.doci(pages, active["doci"])
class Poci:
def GET(self):
web_logger.mes()
return render.poci(pages, active["poci"])
class Croci:
def GET(self):
web_logger.mes()
return render.croci(pages, active["croci"])
class Download:
def GET(self, active):
web_logger.mes()
return render.download(pages, active)
class DownloadLegacy:
def GET(self, active):
web_logger.mes()
return render.download_legacy(pages, active + " (legacy)")
class Search:
def __init__(self, render_page):
self.render_page = render_page
def GET(self):
web_logger.mes()
query_string = web.ctx.env.get("QUERY_STRING")
return self.render_page(pages, active["search"], query_string)
class SearchIndex(Search):
def __init__(self):
Search.__init__(self, render.search_index)
class SearchOC(Search):
def __init__(self):
Search.__init__(self, render.search)
class SearchCCC(Search):
def __init__(self):
Search.__init__(self, render.search_ccc)
class Browser:
def __init__(self, render_page):
self.render_page = render_page
def GET(self, res_id):
web_logger.mes()
return self.render_page(res_id)
class BrowserIndex(Browser):
def __init__(self):
Browser.__init__(self, render.browser_index)
class BrowserOC(Browser):
def __init__(self):
Browser.__init__(self, render.browser)
class BrowserCCC(Browser):
def __init__(self):
Browser.__init__(self, render.browser_ccc)
class Model:
def GET(self, active):
web_logger.mes()
return render.model(pages, active)
class Datasets:
def GET(self, active):
web_logger.mes()
return render.datasets(pages, active)
class Publications:
def GET(self, active):
web_logger.mes()
return render.publications(pages, active)
class Licenses:
def GET(self, active):
web_logger.mes()
return render.licenses(pages, active)
class Contacts:
def GET(self, active):
web_logger.mes()
return render.contacts(pages, active)
class Sparql:
def __init__(self, sparql_endpoint, sparql_endpoint_title, yasqe_sparql_endpoint):
self.sparql_endpoint = sparql_endpoint
self.sparql_endpoint_title = sparql_endpoint_title
self.yasqe_sparql_endpoint = yasqe_sparql_endpoint
def GET(self):
content_type = web.ctx.env.get('CONTENT_TYPE')
return self.__run_query_string(active["sparql"], web.ctx.env.get("QUERY_STRING"), content_type)
def POST(self):
content_type = web.ctx.env.get('CONTENT_TYPE')
cur_data = web.data().decode("utf-8")
if "application/x-www-form-urlencoded" in content_type:
return self.__run_query_string(active["sparql"], cur_data, True, content_type)
elif "application/sparql-query" in content_type:
return self.__contact_tp(cur_data, True, content_type)
else:
raise web.redirect("/sparql")
def __contact_tp(self, data, is_post, content_type):
accept = web.ctx.env.get('HTTP_ACCEPT')
if accept is None or accept == "*/*" or accept == "":
accept = "application/sparql-results+xml"
if is_post:
req = requests.post(self.sparql_endpoint, data=data,
headers={'content-type': content_type, "accept": accept})
else:
req = requests.get("%s?%s" % (self.sparql_endpoint, data),
headers={'content-type': content_type, "accept": accept})
if req.status_code == 200:
web.header('Access-Control-Allow-Origin', '*')
web.header('Access-Control-Allow-Credentials', 'true')
web.header('Content-Type', req.headers["content-type"])
web_logger.mes()
req.encoding = "utf-8"
return req.text
else:
raise web.HTTPError(
str(req.status_code)+" ", {"Content-Type": req.headers["content-type"]}, req.text)
def __run_query_string(self, active, query_string, is_post=False,
content_type="application/x-www-form-urlencoded"):
parsed_query = urlparse.parse_qs(query_string)
if query_string is None or query_string.strip() == "":
web_logger.mes()
return render.sparql(pages, active, self.sparql_endpoint_title, self.yasqe_sparql_endpoint)
if re.search("updates?", query_string, re.IGNORECASE) is None:
if "query" in parsed_query:
return self.__contact_tp(query_string, is_post, content_type)
else:
raise web.redirect("/sparql")
else:
raise web.HTTPError(
"403 ", {"Content-Type": "text/plain"}, "SPARQL Update queries are not permitted.")
class SparqlOC(Sparql):
def __init__(self):
Sparql.__init__(self, c["sparql_endpoint"],
"Corpus", c["oc_base_url"]+"/sparql")
class SparqlIndex(Sparql):
def __init__(self):
Sparql.__init__(self, c["sparql_endpoint_index"],
"Index", c["oc_base_url"]+"/index/sparql")
class SparqlMeta(Sparql):
def __init__(self):
Sparql.__init__(self, c["sparql_endpoint_meta"],
"Meta", c["oc_base_url"]+"/meta/sparql")
class SparqlCCC(Sparql):
def __init__(self):
Sparql.__init__(self, c["sparql_endpoint_ccc"],
"CCC", c["oc_base_url"]+"/ccc/sparql")
class Virtual:
def GET(self, file_path=None):
ldd = LinkedDataDirector(
c["index_base_path"], c["html"], c["oc_base_url"],
c["json_context_path"], c["corpus_local_url"],
label_conf=c["label_conf"], tmp_dir=c["tmp_dir"],
dir_split_number=int(c["dir_split_number"]),
file_split_number=int(c["file_split_number"]),
default_dir=c["default_dir"])
ved = VirtualEntityDirector(ldd, c["virtual_local_url"], c["ved_conf"])
cur_page = ved.redirect(file_path)
if cur_page is None:
raise web.notfound()
else:
web_logger.mes()
return cur_page
class ContentNegotiation:
def __init__(self, base_url, local_url, context_path=None, from_triplestore=None, label_func=None):
self.base_url = base_url
self.local_url = local_url
self.from_triplestore = from_triplestore
self.label_func = label_func
self.context_path = context_path
def GET(self, file_path=None):
ldd = LinkedDataDirector(
c["index_base_path"], c["html"], self.base_url,
self.context_path, self.local_url,
label_conf=c["label_conf"], tmp_dir=c["tmp_dir"],
dir_split_number=int(c["dir_split_number"]),
file_split_number=int(c["file_split_number"]),
default_dir=c["default_dir"], from_triplestore=self.from_triplestore,
label_func=self.label_func)
cur_page = ldd.redirect(file_path)
if cur_page is None:
raise web.notfound()
else:
web_logger.mes()
return cur_page
class IndexContentNegotiation(ContentNegotiation):
def __init__(self):
ContentNegotiation.__init__(self, c["index_base_url"], c["index_local_url"],
context_path=c["ocdm_json_context_path"],
from_triplestore=c["sparql_endpoint_index"],
label_func=lambda u: "oci:%s" % re.findall(
"^.+/ci/(.+)$", u)[0]
if "/ci/" in u else "provenance agent 1" if "/pa/1" in u
else "INDEX")
class CorpusContentNegotiation(ContentNegotiation):
def __init__(self):
ContentNegotiation.__init__(self, c["oc_base_url"], c["corpus_local_url"],
context_path=c["json_context_path"],
from_triplestore=c["sparql_endpoint"])
class CCCContentNegotiation(ContentNegotiation):
def __init__(self):
ContentNegotiation.__init__(self, c["oc_base_url"], c["ccc_local_url"],
context_path=c["ocdm_json_context_path"],
from_triplestore=c["sparql_endpoint_ccc"],
label_func=lambda u: "%s %s" % re.findall("^.+/ccc/(..)/070(.+)$", u)[0])
class MetaContentNegotiation(ContentNegotiation):
def __init__(self):
ContentNegotiation.__init__(self, c["index_base_url"], c["meta_local_url"],
context_path=c["ocdm_json_context_path"],