由于COSM已成为Xively，因此添加了一个不错的设备api（或者总是存在 - 不确定）。流程是
我无法弄清楚如何通过python API来做到这一点 - 是否有任何指针？
答案 0 :(得分：0)
这应该添加到库中，但是现在您可以使用此代码来实现设备激活。我已使用环境变量来存储产品密钥和设备序列，但更改了适用于您的用例的任何内容。唯一棘手的部分是你需要拨打a2b_hex()。
import xively
from os import environ
from hashlib import sha1
from binascii import a2b_hex
import hmac
secret = environ['XIVELY_PRODUCT_SECRET']
serial = environ['XIVELY_DEVICE_SERIAL_NUMBER']
activation = hmac.new(a2b_hex(secret), serial, sha1).hexdigest()
creds = xively.Client(key=None).get('/v2/devices/'+activation+'/activate').json()
xi_feed = xively.XivelyAPIClient(creds['apikey']).feeds.get(creds['feed_id'])
您还需要注意将凭据存储到文件中，因为设备只能激活一次。如果您尝试反复运行此代码，您会注意到403错误，因此请使用Xively开发人员工作台来停用正在测试的设备（您可能需要刷新页面）。
以下是使用配置文件或环境变量的完整工作示例：
#!/usr/bin/python
from os import environ
from hashlib import sha1
from binascii import a2b_hex
import hmac
import sys, subprocess
import ConfigParser
import xively
CONFIG_FILE = 'xively.conf'
PROVISIONING = 'PROVISIONING'
PROVISIONING_PRODUCT_SECRET = 'PRODUCT_SECRET'
PROVISIONING_DEVICE_SERIAL = 'DEVICE_SERIAL'
PROVISIONING_FEED_ID = 'FEED_ID'
PROVISIONING_API_KEY = 'API_KEY'
def get_setting(config, section, key):
try:
value = config.get(section, key)
except:
print key + " not found in config file. Using environment variable " + key + " instead."
try:
value = environ[key]
except:
print key + " not found in environment."
raise
# value defined?
if not value:
raise
return value
def xively_activate_product(secret, serial):
activation = hmac.new(a2b_hex(secret), serial, sha1).hexdigest()
creds = xively.Client(key=None).get('/v2/devices/'+activation+'/activate').json()
return creds
# main
config = ConfigParser.RawConfigParser()
config.read(CONFIG_FILE)
try:
# see if we already have an api key and feed id
feed_id = config.get(PROVISIONING, PROVISIONING_FEED_ID)
api_key = config.get(PROVISIONING, PROVISIONING_API_KEY)
print "Provisioned product details:"
print "FEED_ID: " + str(feed_id)
print "API_KEY: " + api_key
# continue working with your activated product here
except:
print "FEED_ID and API_KEY not found. Activating product now."
# no error handling for secret- it _is_ needed
try:
secret = get_setting(config, PROVISIONING, PROVISIONING_PRODUCT_SECRET)
except:
print "Finding " + PROVISIONING_PRODUCT_SECRET + " failed. Giving up."
sys.exit(1)
try:
serial = get_setting(config, PROVISIONING, PROVISIONING_DEVICE_SERIAL)
except:
serial = subprocess.check_output("hostname", shell=True)
if not serial:
print "Fallback to hostname for " + PROVISIONING_DEVICE_SERIAL + " failed. Giving up."
sys.exit(1)
try:
creds = xively_activate_product(secret, serial)
# check if there were errors
try:
creds["errors"]
except:
pass
else:
print "Product activation failed (" + creds["title"] +": "+ creds["errors"] + ")."
sys.exit(1)
feed_id = creds['feed_id']
api_key = creds['apikey']
print "Product activation successful."
print "FEED_ID: " + str(feed_id)
print "API_KEY: " + api_key
if not config.has_section(PROVISIONING):
config.add_section(PROVISIONING)
config.set(PROVISIONING, PROVISIONING_FEED_ID, feed_id)
config.set(PROVISIONING, PROVISIONING_API_KEY, api_key)
# Writing our configuration file to 'example.cfg'
with open(CONFIG_FILE, 'wb') as configfile:
config.write(configfile)
except Exception as e:
print "Product activation failed (" + str(e) +")."
sys.exit(1)
答案 1 :(得分：0)
这是我写的另一个有用的课程：
## Logging for debugging purposes
import logging
logging.basicConfig(level=logging.INFO)
logger = logging.getLogger(__name__)
import os
from os import environ
from hashlib import sha1
from binascii import a2b_hex
import hmac
import sys, subprocess
import ConfigParser
import xively
PROVISIONING = 'PROVISIONING'
PROVISIONING_PRODUCT_SECRET = 'PRODUCT_SECRET'
PROVISIONING_FEED_ID = 'FEED_ID'
PROVISIONING_API_KEY = 'API_KEY'
class XivelyManager:
def __init__(self, settings="xively.conf"):
# main
self.settings=settings
self.config = ConfigParser.RawConfigParser()
self.config.read(settings)
try:
# see if we already have an api key and feed id
self.api_key = self.get_setting(PROVISIONING, PROVISIONING_API_KEY)
self.secret = self.get_setting(PROVISIONING, PROVISIONING_PRODUCT_SECRET)
# continue working with your activated product here
except:
logger.exception( "API KEY and SECRET NOT FOUND" )
def activate_sensor(self,serial):
try:
creds = self.xively_activate_product(str(serial))
# check if there were errors
try:
creds["errors"]
except:
pass
else:
logger.exception("Product activation failed (" + creds["title"] +": "+ creds["errors"] + ").")
return False
feed_id = creds['feed_id']
api_key = creds['apikey']
if not self.config.has_section(PROVISIONING):
self.config.add_section(PROVISIONING)
if not self.config.has_section(str(serial)):
self.config.add_section(str(serial))
self.config.set(PROVISIONING, PROVISIONING_API_KEY, api_key)
self.config.set(str(serial), PROVISIONING_FEED_ID , feed_id)
# Writing our configuration file to 'xively.cfg'
with open(self.settings, 'wb') as configfile:
self.config.write(configfile)
return True
except Exception as e:
logger.exception("Product activation failed (" + str(e) +").")
return False
def get_setting(self, section, key):
try:
value = self.config.get(section, key)
except:
logger.exception( key + " not found in config file. Using environment variable " + key + " instead.")
## try:
## value = environ[key]
## except:
## logger.exception( key + " not found in environment.")
## finally:
## pass
finally:
# value defined?
if not value:
raise
return value
def get_feed(self,serial):
try:
if self.config.has_section(str(serial)):
feed_id = self.get_setting(str(serial), PROVISIONING_FEED_ID)
else:
feed_id=False
except Exception, e:
feed_id=False
finally:
return feed_id
def xively_activate_product(self, serial):
activation = hmac.new(a2b_hex(self.secret), serial, sha1).hexdigest()
creds = xively.Client(key=None).get('/v2/devices/'+activation+'/activate').json()
return creds
if __name__ == "__main__":
print "Testing Xively Manager "
settings = os.path.join(os.path.dirname(sys.argv[0]), "config", "xively.conf")
print settings
testxive=XivelyManager(settings)
#print testxive.activate_sensor(10)
print testxive.get_feed(10)
当您的互联网网关连接到其他几个设备时，这很有用。 您的配置文件将使用以下内容进行更新：
[PROVISIONING]
product_secret = xxxxxxxxxxxxxxxxxxxxxxxxxxxx
api_key = xxxxxxxxxxxxxxxxxxxxxxxx
[productserial1]
feed_id = xxxxxxxx
[productserial2]
feed_id = xxxxxxxx