def api(path_info, repo_name, version, start_response, environ):
slash = path_info.find('/')
if (slash == -1):
return cvmfs_api.bad_request(start_response, 'no slash in geo path')
caching_string = path_info[0:slash]
servers = string.split(path_info[slash + 1:], ",")
# TODO(jblomer): Can this be switched to monotonic time?
now = int(time.time())
gir_rem = None
if caching_string.find('.'):
# might be a FQDN, use it if it resolves to a geo record
gir_rem = name_geoinfo(now, caching_string)
if gir_rem is None:
if 'HTTP_X_FORWARDED_FOR' in environ:
forwarded_for = environ['HTTP_X_FORWARDED_FOR']
start = string.rfind(forwarded_for, ' ') + 1
if (start == 0):
start = string.rfind(forwarded_for, ',') + 1
gir_rem = addr_geoinfo(forwarded_for[start:])
if gir_rem is None and 'REMOTE_ADDR' in environ:
gir_rem = addr_geoinfo(environ['REMOTE_ADDR'])
if gir_rem is None:
return cvmfs_api.bad_request(start_response,
'remote addr not found in database')
if '+PXYSEP+' in servers:
# first geosort the proxies after the separator and if at least one
# is good, sort the hosts before the separator relative to that
# proxy rather than the client
pxysep = servers.index('+PXYSEP+')
onegood, pxyindexes = geosort_servers(now, gir_rem,
servers[pxysep + 1:])
if onegood:
gir_pxy = name_geoinfo(now, servers[pxysep + 1 + pxyindexes[0]])
if not gir_pxy is None:
gir_rem = gir_pxy
onegood, hostindexes = geosort_servers(now, gir_rem, servers[0:pxysep])
indexes = hostindexes + list(pxysep + 1 + i for i in pxyindexes)
# Append the index of the separator for backward compatibility,
# so the client can always expect the same number of indexes as
# the number of elements in the request.
indexes.append(pxysep)
else:
onegood, indexes = geosort_servers(now, gir_rem, servers)
if not onegood:
# return a bad request only if all the server names were bad
return cvmfs_api.bad_request(start_response,
'no server addr found in database')
response_body = string.join((str(i + 1) for i in indexes), ',') + '\n'
status = '200 OK'
response_headers = [('Content-Type', 'text/plain'),
('Cache-Control',
'max-age=' + str(positive_expire_secs)),
('Content-Length', str(len(response_body)))]
start_response(status, response_headers)
return [response_body]
def api(path_info, repo_name, version, start_response, environ):
start = string.find(path_info, '/') + 1
if (start == 0):
return cvmfs_api.bad_request(start_response, 'no slash in geo path')
servers = string.split(path_info[start:], ",")
rem_addr = ''
if 'HTTP_X_FORWARDED_FOR' in environ:
forwarded_for = environ['HTTP_X_FORWARDED_FOR']
start = string.rfind(forwarded_for, ' ') + 1
if (start == 0):
start = string.rfind(forwarded_for, ',') + 1
rem_addr = forwarded_for[start:]
else:
if 'REMOTE_ADDR' in environ:
rem_addr = environ['REMOTE_ADDR']
if (len(rem_addr) < 256) and addr_pattern.search(rem_addr):
gir_rem = gi.record_by_addr(rem_addr)
else:
gir_rem = None
if gir_rem is None:
return cvmfs_api.bad_request(start_response, 'remote addr not found in database')
idx = 1
arcs = []
indexes = []
onegood = False
for server in servers:
if (len(server) < 256) and addr_pattern.search(server):
gir_server = gi.record_by_name(server)
else:
gir_server = None
if gir_server is None:
# put it on the end of the list
arc = float("inf")
else:
onegood = True
arc = distance_on_unit_sphere(gir_rem['latitude'],
gir_rem['longitude'],
gir_server['latitude'],
gir_server['longitude'])
i = bisect.bisect(arcs, arc)
arcs[i:i] = [ arc ]
indexes[i:i] = [ str(idx) ]
idx += 1
if not onegood:
# return a bad request only if all the server names were bad
return cvmfs_api.bad_request(start_response, 'no server addr found in database')
response_body = string.join(indexes, ',') + '\n'
status = '200 OK'
response_headers = [('Content-Type', 'text/plain'),
('Cache-Control', 'max-age=' + str(positive_expire_secs)),
('Content-Length', str(len(response_body)))]
start_response(status, response_headers)
return [response_body]
def api(path_info, repo_name, version, start_response, environ):
slash = path_info.find('/')
if (slash == -1):
return cvmfs_api.bad_request(start_response, 'no slash in geo path')
caching_string = path_info[0:slash]
servers = string.split(path_info[slash+1:], ",")
# TODO(jblomer): Can this be switched to monotonic time?
now = int(time.time())
gir_rem = None
if caching_string.find('.'):
# might be a FQDN, use it if it resolves to a geo record
gir_rem = name_geoinfo(now, caching_string)
trycdn = False
if gir_rem is None:
if 'HTTP_CF_CONNECTING_IP' in environ:
# IP address of client connecting to Cloudflare
gir_rem = addr_geoinfo(environ['HTTP_CF_CONNECTING_IP'])
if gir_rem is not None:
# Servers probably using Cloudflare Content Delivery Network too
trycdn = True
if gir_rem is None and 'HTTP_X_FORWARDED_FOR' in environ:
# List of IP addresses forwarded through squid
# Try the last IP, in case there's a reverse proxy squid
# in front of the web server.
forwarded_for = environ['HTTP_X_FORWARDED_FOR']
start = string.rfind(forwarded_for, ' ') + 1
if (start == 0):
start = string.rfind(forwarded_for, ',') + 1
gir_rem = addr_geoinfo(forwarded_for[start:])
if gir_rem is None and 'REMOTE_ADDR' in environ:
# IP address connecting to web server
gir_rem = addr_geoinfo(environ['REMOTE_ADDR'])
if gir_rem is None:
return cvmfs_api.bad_request(start_response, 'remote addr not found in database')
if '+PXYSEP+' in servers:
# first geosort the proxies after the separator and if at least one
# is good, sort the hosts before the separator relative to that
# proxy rather than the client
pxysep = servers.index('+PXYSEP+')
# assume backup proxies will not be behind a CDN
onegood, pxyindexes = \
geosort_servers(now, gir_rem, servers[pxysep+1:], False)
if onegood:
gir_pxy = name_geoinfo(now, servers[pxysep+1+pxyindexes[0]])
if not gir_pxy is None:
gir_rem = gir_pxy
onegood, hostindexes = \
geosort_servers(now, gir_rem, servers[0:pxysep], trycdn)
indexes = hostindexes + list(pxysep+1+i for i in pxyindexes)
# Append the index of the separator for backward compatibility,
# so the client can always expect the same number of indexes as
# the number of elements in the request.
indexes.append(pxysep)
else:
onegood, indexes = geosort_servers(now, gir_rem, servers, trycdn)
if not onegood:
# return a bad request only if all the server names were bad
return cvmfs_api.bad_request(start_response, 'no server addr found in database')
response_body = string.join((str(i+1) for i in indexes), ',') + '\n'
status = '200 OK'
response_headers = [('Content-Type', 'text/plain'),
('Cache-Control', 'max-age=' + str(positive_expire_secs)),
('Content-Length', str(len(response_body)))]
start_response(status, response_headers)
return [response_body]
def api(path_info, repo_name, version, start_response, environ):
slash = path_info.find('/')
if (slash == -1):
return cvmfs_api.bad_request(start_response, 'no slash in geo path')
caching_string = path_info[0:slash]
servers = string.split(path_info[slash+1:], ",")
if caching_string == "_namelookups_":
# this is a special debugging URL
return cvmfs_api.good_request(start_response, str(namelookups) + '\n')
# TODO(jblomer): Can this be switched to monotonic time?
now = int(time.time())
trycdn = False
if 'HTTP_CF_CONNECTING_IP' in environ:
# Request is coming from Cloudflare Content Delivery Network;
# servers are probably using Cloudflare too.
trycdn = True
gir_rem = None
if caching_string.find('.'):
# might be a FQDN, use it if it resolves to a geo record
gir_rem = name_geoinfo(now, caching_string)
if gir_rem is None:
if 'HTTP_CF_CONNECTING_IP' in environ:
# IP address of client connecting to Cloudflare
gir_rem = addr_geoinfo(now, environ['HTTP_CF_CONNECTING_IP'])
if gir_rem is None and 'HTTP_X_FORWARDED_FOR' in environ:
# List of IP addresses forwarded through squid
# Try the last IP, in case there's a reverse proxy squid
# in front of the web server.
forwarded_for = environ['HTTP_X_FORWARDED_FOR']
start = string.rfind(forwarded_for, ' ') + 1
if (start == 0):
start = string.rfind(forwarded_for, ',') + 1
gir_rem = addr_geoinfo(now, forwarded_for[start:])
if gir_rem is None and 'REMOTE_ADDR' in environ:
# IP address connecting to web server
gir_rem = addr_geoinfo(now, environ['REMOTE_ADDR'])
if gir_rem is None:
return cvmfs_api.bad_request(start_response, 'remote addr not found in database')
if '+PXYSEP+' in servers:
# first geosort the proxies after the separator and if at least one
# is good, sort the hosts before the separator relative to that
# proxy rather than the client
pxysep = servers.index('+PXYSEP+')
# assume backup proxies will not be behind a CDN
onegood, pxyindexes = \
geosort_servers(now, gir_rem, servers[pxysep+1:], False)
if onegood:
gir_pxy = name_geoinfo(now, servers[pxysep+1+pxyindexes[0]])
if not gir_pxy is None:
gir_rem = gir_pxy
onegood, hostindexes = \
geosort_servers(now, gir_rem, servers[0:pxysep], trycdn)
indexes = hostindexes + list(pxysep+1+i for i in pxyindexes)
# Append the index of the separator for backward compatibility,
# so the client can always expect the same number of indexes as
# the number of elements in the request.
indexes.append(pxysep)
else:
onegood, indexes = geosort_servers(now, gir_rem, servers, trycdn)
if not onegood:
# return a bad request only if all the server names were bad
return cvmfs_api.bad_request(start_response, 'no server addr found in database')
response_body = string.join((str(i+1) for i in indexes), ',') + '\n'
return cvmfs_api.good_request(start_response, response_body)
def api(path_info, repo_name, version, start_response, environ):
slash = path_info.find('/')
if (slash == -1):
return cvmfs_api.bad_request(start_response, 'no slash in geo path')
caching_string = path_info[0:slash]
servers = string.split(path_info[slash+1:], ",")
gir_rem = None
rem_addr = ''
if caching_string.find('.'):
# might be a FQDN, use it if it resolves to an address
try:
ai = socket.getaddrinfo(caching_string,80,0,0,socket.IPPROTO_TCP)
arec = ai[0]
# prefer IPv4 because the database is more accurate
for info in ai:
if info[0] == socket.AF_INET:
arec = info
break
rem_addr = arec[4][0]
except:
pass
else:
gir_rem = addr_geoinfo(rem_addr)
if gir_rem is None:
rem_addr = ''
if 'HTTP_X_FORWARDED_FOR' in environ:
forwarded_for = environ['HTTP_X_FORWARDED_FOR']
start = string.rfind(forwarded_for, ' ') + 1
if (start == 0):
start = string.rfind(forwarded_for, ',') + 1
rem_addr = forwarded_for[start:]
else:
if 'REMOTE_ADDR' in environ:
rem_addr = environ['REMOTE_ADDR']
if (len(rem_addr) < 256) and addr_pattern.search(rem_addr):
gir_rem = addr_geoinfo(rem_addr)
if gir_rem is None:
return cvmfs_api.bad_request(start_response, 'remote addr not found in database')
idx = 1
arcs = []
indexes = []
onegood = False
for server in servers:
if (len(server) < 256) and addr_pattern.search(server):
# try IPv4 first since that DB is better and most servers
# today are dual stack if they have IPv6
gir_server = gi.record_by_name(server)
if gir_server is None:
gir_server = gi6.record_by_name_v6(server)
else:
gir_server = None
if gir_server is None:
# put it on the end of the list
arc = float("inf")
else:
onegood = True
arc = distance_on_unit_sphere(gir_rem['latitude'],
gir_rem['longitude'],
gir_server['latitude'],
gir_server['longitude'])
#print "distance between " + \
# rem_addr + ' (' + str(gir_rem['latitude']) + ',' + str(gir_rem['longitude']) + ')' \
# + " and " + \
# server + ' (' + str(gir_server['latitude']) + ',' + str(gir_server['longitude']) + ')' + \
# " is " + str(arc)
i = bisect.bisect(arcs, arc)
arcs[i:i] = [ arc ]
indexes[i:i] = [ str(idx) ]
idx += 1
if not onegood:
# return a bad request only if all the server names were bad
return cvmfs_api.bad_request(start_response, 'no server addr found in database')
response_body = string.join(indexes, ',') + '\n'
status = '200 OK'
response_headers = [('Content-Type', 'text/plain'),
('Cache-Control', 'max-age=' + str(positive_expire_secs)),
('Content-Length', str(len(response_body)))]
start_response(status, response_headers)
return [response_body]
