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take5_download.py
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#! /usr/bin/env python
# -*- coding: iso-8859-1 -*-
# Author O.Hagolle, CESBIO and CNES
import json
import time
import os, os.path, optparse,sys
from datetime import date
###########################################################################
class OptionParser (optparse.OptionParser):
def check_required (self, opt):
option = self.get_option(opt)
# Assumes the option's 'default' is set to None!
if getattr(self.values, option.dest) is None:
self.error("%s option not supplied" % option)
###########################################################################
#==================
#parse command line
#==================
if len(sys.argv) == 1:
prog = os.path.basename(sys.argv[0])
print ' '+sys.argv[0]+' [options]'
print " Aide : ", prog, " --help"
print " ou : ", prog, " -h"
print "example 1 : python %s -s 'ToulouseFrance' -a auth_theia.txt -d 2015-04-01 -f 2015-04-18 -l LEVEL2A"%sys.argv[0]
sys.exit(-1)
else :
usage = "usage: %prog [options] "
parser = OptionParser(usage=usage)
parser.add_option("-s","--site", dest="site", action="store", type="string", \
help="site name",default=None)
parser.add_option("-a","--auth_theia", dest="auth_theia", action="store", type="string", \
help="Theia account and password file")
parser.add_option("-w","--write_dir", dest="write_dir", action="store",type="string", \
help="Path where the products should be downloaded",default='.')
parser.add_option("-c","--collection", dest="collection", action="store", type="choice", \
help="SPOT4 or SPOT5",choices=['SPOT4','SPOT5'],default='SPOT5')
parser.add_option("-l","--level", dest="level", action="store", type="choice", \
help="LEVEL1C or LEVEL2A",choices=['LEVEL1C','LEVEL2A'],default=None)
parser.add_option("-n","--no_download", dest="no_download", action="store_true", \
help="Do not download products, just print curl command",default=False)
parser.add_option("-d", "--start_date", dest="start_date", action="store", type="string", \
help="start date, fmt('2015-12-22')",default=None)
parser.add_option("-f","--end_date", dest="end_date", action="store", type="string", \
help="end date, fmt('2015-12-23')",default=None)
(options, args) = parser.parse_args()
if options.level!=None:
level="\&processingLevel=%s"%options.level
else:
level=""
if options.start_date!=None:
start_date=options.start_date
if options.end_date!=None:
end_date=options.end_date
else:
end_date=date.today().isoformat()
#====================
# read authentification file
#====================
try:
f=file(options.auth_theia)
(email,passwd)=f.readline().split(' ')
if passwd.endswith('\n'):
passwd=passwd[:-1]
f.close()
except :
print "error with password file"
sys.exit(-2)
#============================================================
# get a token to be allowed to bypass the authentification.
# The token is only valid for two hours. If your connection is slow
# or if you are downloading lots of products, it might be an issue
#=============================================================
get_token='curl -k -s -X POST --data-urlencode "ident=%s" --data-urlencode "pass=%s" https://theia.cnes.fr/services/authenticate/>token.json'%(email,passwd)
os.system(get_token)
with open('token.json') as data_file:
try :
token_json = json.load(data_file)
except :
print "Authentification is probably wrong"
sys.exit(-1)
token=token_json["access_token"]
#====================
# search catalogue
#====================
if os.path.exists('search.json'):
os.remove('search.json')
search_catalog='curl -k -o search.json https://spot-take5.org/resto/api/collections/%s/search.json?\&zone_geo=%s\&startDate=%s\&completionDate=%s%s\&maxRecords=500'%(options.collection,options.site,start_date,end_date,level)
print search_catalog
os.system(search_catalog)
time.sleep(10)
#====================
# Download
#====================
with open('search.json') as data_file:
data = json.load(data_file)
for i in range(len(data["features"])):
print data["features"][i]["properties"]["productIdentifier"],data["features"][i]["id"],data["features"][i]["properties"]["startDate"]
prod=data["features"][i]["properties"]["productIdentifier"]
feature_id=data["features"][i]["id"]
if options.write_dir==None :
get_product='curl -o %s.zip -k -H "Authorization: Bearer %s" https://spot-take5.org/resto/collections/%s/%s/download/?issuerId=theia'%(prod,token,options.collection,feature_id)
else :
get_product='curl -o %s/%s.zip -k -H "Authorization: Bearer %s" https://spot-take5.org/resto/collections/%s/%s/download/?issuerId=theia'%(options.write_dir,prod,token,options.collection,feature_id)
print get_product
if not(options.no_download):
os.system(get_product)