def makeQueryGET(parameters):
"""Process a request made via a GET method."""
global routes
# List all the accepted parameters
allowedParams = ['net', 'network',
'sta', 'station',
'loc', 'location',
'cha', 'channel',
'start', 'starttime',
'end', 'endtime',
'minlat', 'minlatitude',
'maxlat', 'maxlatitude',
'minlon', 'minlongitude',
'maxlon', 'maxlongitude',
'service', 'format',
'alternative']
for param in parameters:
if param not in allowedParams:
msg = 'Unknown parameter: %s' % param
raise WIClientError(msg)
try:
net = getParam(parameters, ['net', 'network'], '*', csv=True)
sta = getParam(parameters, ['sta', 'station'], '*', csv=True)
loc = getParam(parameters, ['loc', 'location'], '*', csv=True)
cha = getParam(parameters, ['cha', 'channel'], '*', csv=True)
start = getParam(parameters, ['start', 'starttime'], None)
except Exception as e:
raise WIClientError(str(e))
try:
if start is not None:
start = str2date(start)
except:
msg = 'Error while converting starttime parameter.'
raise WIClientError(msg)
endt = getParam(parameters, ['end', 'endtime'], None)
try:
if endt is not None:
endt = str2date(endt)
except:
msg = 'Error while converting endtime parameter.'
raise WIClientError(msg)
try:
minlat = float(getParam(parameters, ['minlat', 'minlatitude'],
'-90.0'))
except:
msg = 'Error while converting the minlatitude parameter.'
raise WIClientError(msg)
try:
maxlat = float(getParam(parameters, ['maxlat', 'maxlatitude'],
'90.0'))
except:
msg = 'Error while converting the maxlatitude parameter.'
raise WIClientError(msg)
try:
minlon = float(getParam(parameters, ['minlon', 'minlongitude'],
'-180.0'))
except:
msg = 'Error while converting the minlongitude parameter.'
raise WIClientError(msg)
try:
maxlon = float(getParam(parameters, ['maxlon', 'maxlongitude'],
'180.0'))
except:
msg = 'Error while converting the maxlongitude parameter.'
raise WIClientError(msg)
ser = getParam(parameters, ['service'], 'dataselect').lower()
aux = getParam(parameters, ['alternative'], 'false').lower()
if aux == 'true':
alt = True
elif aux == 'false':
alt = False
else:
msg = 'Wrong value passed in parameter "alternative"'
raise WIClientError(msg)
form = getParam(parameters, ['format'], 'xml').lower()
if ((alt) and (form == 'get')):
msg = 'alternative=true and format=get are incompatible parameters'
raise WIClientError(msg)
# print start, type(start), endt, type(endt), (start > endt)
if ((start is not None) and (endt is not None) and (start > endt)):
msg = 'Start datetime cannot be greater than end datetime'
raise WIClientError(msg)
if ((minlat == -90.0) and (maxlat == 90.0) and (minlon == -180.0) and
(maxlon == 180.0)):
geoLoc = None
else:
geoLoc = geoRectangle(minlat, maxlat, minlon, maxlon)
result = RequestMerge()
# Expand lists in parameters (f.i., cha=BHZ,HHN) and yield all possible
# values
for (n, s, l, c) in lsNSLC(net, sta, loc, cha):
try:
st = Stream(n, s, l, c)
tw = TW(start, endt)
result.extend(routes.getRoute(st, tw, ser, geoLoc, alt))
except RoutingException:
pass
if len(result) == 0:
raise WIContentError()
return result
def makeQueryPOST(postText):
"""Process a request made via a POST method."""
global routes
# These are the parameters accepted appart from N.S.L.C
extraParams = ['format', 'service', 'alternative',
'minlat', 'minlatitude',
'maxlat', 'maxlatitude',
'minlon', 'minlongitude',
'maxlon', 'maxlongitude']
# Default values
ser = 'dataselect'
alt = False
result = RequestMerge()
# Check if we are still processing the header of the POST body. This has a
# format like key=value, one per line.
inHeader = True
minlat = -90.0
maxlat = 90.0
minlon = -180.0
maxlon = 180.0
filterdefined = False
for line in postText.splitlines():
if not len(line):
continue
if (inHeader and ('=' not in line)):
inHeader = False
if inHeader:
try:
key, value = line.split('=')
key = key.strip()
value = value.strip()
except:
msg = 'Wrong format detected while processing: %s' % line
raise WIClientError(msg)
if key not in extraParams:
msg = 'Unknown parameter "%s"' % key
raise WIClientError(msg)
if key == 'service':
ser = value
elif key == 'alternative':
alt = True if value.lower() == 'true' else False
elif key == 'minlat':
minlat = float(value.lower())
elif key == 'maxlat':
maxlat = float(value.lower())
elif key == 'minlon':
minlon = float(value.lower())
elif key == 'maxlon':
maxlon = float(value.lower())
continue
# I'm already in the main part of the POST body, where the streams are
# specified
filterdefined = True
net, sta, loc, cha, start, endt = line.split()
net = net.upper()
sta = sta.upper()
loc = loc.upper()
try:
if start.strip() == '*':
start = None
else:
start = str2date(start)
except Exception:
msg = 'Error while converting %s to datetime' % start
raise WIClientError(msg)
try:
if endt.strip() == '*':
endt = None
else:
endt = str2date(endt)
except Exception:
msg = 'Error while converting %s to datetime' % endt
raise WIClientError(msg)
if ((minlat == -90.0) and (maxlat == 90.0) and (minlon == -180.0) and
(maxlon == 180.0)):
geoLoc = None
else:
geoLoc = geoRectangle(minlat, maxlat, minlon, maxlon)
try:
st = Stream(net, sta, loc, cha)
tw = TW(start, endt)
result.extend(routes.getRoute(st, tw, ser, geoLoc, alt))
except RoutingException:
pass
if not filterdefined:
st = Stream('*', '*', '*', '*')
tw = TW(None, None)
geoLoc = None
result.extend(routes.getRoute(st, tw, ser, geoLoc, alt))
if len(result) == 0:
raise WIContentError()
return result
