import cairo
import cgi
+import Cookie
import mapnik
import os
+import pyotp
+import resource
import shutil
+import signal
import sys
import tempfile
-import resource
-import signal
# Limit maximum CPU time
# The Postscript output format can sometimes take hours
print "</body>"
print "</html>"
+# Create TOTP token validator
+totp = pyotp.TOTP('<%= @totp_key %>', interval = 3600)
+
# Parse CGI parameters
form = cgi.FieldStorage()
+# Import cookies
+cookies = Cookie.SimpleCookie(os.environ.get('HTTP_COOKIE'))
+
# Make sure we have a user agent
if not os.environ.has_key('HTTP_USER_AGENT'):
os.environ['HTTP_USER_AGENT'] = 'NONE'
if not os.environ.has_key('HTTP_REFERER'):
os.environ['HTTP_REFERER'] = 'NONE'
+# Look for TOTP token
+if cookies.has_key('_osm_totp_token'):
+ token = cookies['_osm_totp_token'].value
+else:
+ token = None
+
# Get the load average
cputimes = [float(n) for n in open("/proc/stat").readline().rstrip().split()[1:-1]]
idletime = cputimes[3] / sum(cputimes)
# Process the request
-if idletime < 0.2:
+if not totp.verify(token, valid_window = 1):
+ # Abort if the request didn't have a valid TOTP token
+ output_error("Missing or invalid token")
+elif idletime < 0.2:
# Abort if the CPU idle time on the machine is too low
output_error("The server is too busy at the moment. Please wait a few minutes before trying again.", "503 Service Unavailable")
-elif form.getvalue("scale") == "3600":
- # Block scraper
- output_error("The server is too busy at the moment. Please wait a few minutes before trying again.", "503 Service Unavailable")
<% @blocks["user_agents"].each do |user_agent| -%>
elif os.environ['HTTP_USER_AGENT'] == '<%= user_agent %>':
# Block scraper
elif form.getvalue("format") == "svg":
file = tempfile.NamedTemporaryFile(prefix = "export")
surface = cairo.SVGSurface(file.name, map.width, map.height)
+ surface.restrict_to_version(cairo.SVG_VERSION_1_2)
mapnik.render(map, surface)
surface.finish()
output_headers("image/svg+xml", "map.svg", file_size(file))