/
anycastcheck.py
executable file
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/
anycastcheck.py
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#!/usr/bin/env python
#
# https://atlas.ripe.net/contrib/root_anycast.json?msm_id=1&af=6&qst=IS
# https://atlas.ripe.net/contrib/root_anycast.json?msm_id=1&af=4&qst=IS
#
# http://www.infornografia.net/atlas/anycastcheck.html
# http://www.infornografia.net/atlas/anycastcheck.kml
#
# UNK/UNK -> invalid
# inst4 = inst6 -> ok
# inst4 != inst6 -> nok
# inst4 != inst6 (UNK) -> nok-unknowns
# Arguably, nok-unknowns could be set as invalid, as well
#
# ["id_3_31", "52.2985", "4.9375",
# [
# "Probe ID", "2 (<a href='https://stat.ripe.net/AS5615' target='_new'>AS5615</a>)",
# "Instance", "linx",
# "Reply time", "27 ms",
# "As of (UTC)", "2012-02-24 13:35:56"
# ]
# ]
import json
from xml.dom.minidom import getDOMImplementation
import urllib
import re
def xml_newdoc():
impl= getDOMImplementation()
newdoc= impl.createDocument(None, "kml", None)
return newdoc
def main():
doc= xml_newdoc()
kml_el= doc.documentElement
kml_el.setAttribute("xmlns", "http://www.opengis.net/kml/2.2")
doc_el = doc.createElement("Document")
kml_el.appendChild(doc_el)
add_style(doc, doc_el, "chk_ok", "http://maps.google.com/mapfiles/kml/paddle/grn-blank.png")
add_style(doc, doc_el, "chk_nok", "http://maps.google.com/mapfiles/kml/paddle/pink-blank.png")
add_style(doc, doc_el, "chk_unknowns", "http://maps.google.com/mapfiles/kml/paddle/pink-circle.png")
add_style(doc, doc_el, "chk_invalid", "http://maps.google.com/mapfiles/kml/paddle/wht-blank.png")
probes4= get_probes("4")
probes6= get_probes("6")
for probe, list in probes6.iteritems():
probe_id= probe
if (probe_id in probes4):
chk_result= check_instance(probe_id,probes4,probes6)
descr = print_descr(probe_id,probes4,probes6)
lat = get_lat(probe_id,probes6)
lon = get_lon(probe_id,probes6)
add_probe(doc, doc_el, lat, lon, descr, chk_result)
print doc.toprettyxml(encoding="UTF-8")
def get_lat(probe_id,probes6):
data6= {}
list = probes6[probe_id]
for i in range(0,len(list),2):
data6[list[i]]= list[i+1]
return data6["Latitude"]
def get_lon(probe_id,probes6):
data6= {}
list= probes6[probe_id]
for i in range(0,len(list),2):
data6[list[i]]= list[i+1]
return data6["Longitude"]
def check_instance(probe_id,probes4,probes6):
data4= {}
data6= {}
list= probes6[probe_id]
for i in range(0,len(list),2):
data6[str(list[i])]= str(list[i+1])
list= probes4[probe_id]
for i in range(0,len(list),2):
data4[str(list[i])]= str(list[i+1])
if data6["Response"]==data4["Response"]:
if (data6["Response"] == "UNKNOWN") or (data4["Response"] == "UNKNOWN"):
result= "invalid"
else:
result= "ok"
elif (data6["Response"] == "UNKNOWN") or (data4["Response"] == "UNKNOWN"):
result= "unknowns"
else:
result= "nok"
return result
def get_probes(af):
probes= {}
url= "https://atlas.ripe.net/contrib/root_anycast.json?msm_id=1&af=" + str(af) + "&qst=IS"
data = json.load(urllib.urlopen(url))
for probe in data["probes"]:
items= probe[3]
# xxx populate items properly
items.append(str("Latitude"))
items.append(str(probe[1]))
items.append(str("Longitude"))
items.append(str(probe[2]))
d= {}
for i in range(0,len(items),2):
d[str(items[i])]= str(items[i+1])
probeid= re.search('^(\d+)',str(d["Probe ID"]))
probes[str(probeid.group(0))]= items
return probes
def print_descr(probe_id, probes4, probes6):
data4= {}
data6= {}
list= probes6[probe_id]
for i in range(0,len(list),2):
data6[str(list[i])]= str(list[i+1])
list= probes4[probe_id]
for i in range(0,len(list),2):
data4[str(list[i])]= str(list[i+1])
table= "<table>"
table += "<tr><td><b>Probe ID:</b></td><td>" + str(data6["Probe ID"]) + "</td></tr>"
table += "<tr><td><b>Instance (v6):</b></td><td>" + data6["Response"] + " (" + data6["Reply time"] + ")</td></tr>"
table += "<tr><td><b>Instance (v4):</b></td><td>" + data4["Response"] + " (" + data4["Reply time"] + ")</td></tr>"
table += "<tr><td><b>As of (UTC):</b></td><td>" + data6["As of (UTC)"] + "</td></tr>"
table += "</table>"
return str(table)
def add_probe(doc, parent, lat_str, lon_str, descr_str, result_str):
place_el = doc.createElement("Placemark")
parent.appendChild(place_el)
descr_el = doc.createElement("description")
place_el.appendChild(descr_el)
text_node= doc.createCDATASection(str(descr_str))
descr_el.appendChild(text_node)
if str(result_str) == "ok":
styleurl= "#chk_ok"
elif str(result_str) == "nok":
styleurl= "#chk_nok"
elif str(result_str) == "unknowns":
styleurl= "#chk_unknowns"
else:
styleurl= "#chk_invalid"
styleurl_el = doc.createElement("styleUrl")
place_el.appendChild(styleurl_el)
text_node= doc.createTextNode(styleurl)
styleurl_el.appendChild(text_node)
point_el = doc.createElement("Point")
place_el.appendChild(point_el)
coor_el = doc.createElement("coordinates")
point_el.appendChild(coor_el)
lat= float(lat_str)
lon= float(lon_str)
text_node= doc.createTextNode("%f,%f,0" % (lon,lat))
coor_el.appendChild(text_node)
def add_style(doc, parent, name, url):
style_el= doc.createElement("Style")
parent.appendChild(style_el)
style_el.setAttribute("id", name)
iconstyle_el= doc.createElement("IconStyle")
style_el.appendChild(iconstyle_el)
icon_el= doc.createElement("Icon")
iconstyle_el.appendChild(icon_el)
href_el= doc.createElement("href")
icon_el.appendChild(href_el)
text_node= doc.createTextNode(url)
href_el.appendChild(text_node)
main()