Python3 语言 get 请求签名 demo
更新时间：2024-04-18 15:03:10
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本文示例为 Python3 语言的 get 请求类型的 demo
需要调整的地方为：
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填写您实际的 api 秘钥中的 access_key_id，secret_access_key
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填写实际的 action (具体的 api 指令)
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填写实际的 zone (资源区域)
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根据 action 填写实际需要的参数
import hmac import json import base64 import datetime from hashlib import sha256 from collections import OrderedDict import urllib.request, urllib.error, urllib.parse class QingApi: def __init__(self): self.access_key_id = 'xxxxxx' self.secret_access_key = 'xxxxxxx' self.time_stamp = datetime.datetime.utcnow().strftime("%Y-%m-%dT%H:%M:%SZ") self.url = "https://api.qingcloud.com/iaas/" self.url_path = '/iaas/' self.methods = 'GET' def postResust(self, iassurl): req = urllib.request.Request(iassurl) result = urllib.request.urlopen(req) response = json.loads(result.read().decode()) print(response) def getVhost(self): od = OrderedDict() od['access_key_id'] = self.access_key_id od['action'] = "DescribeInstances" od['signature_method'] = "HmacSHA256" od['signature_version'] = 1 od['time_stamp'] = self.time_stamp od['version'] = 1 od['zone'] = "sh1" od['instances.1'] = "i-ets7af6q" od = self.sort_value(od) data = urllib.parse.urlencode(od) string_to_sign = self.methods + "\n" + self.url_path + "\n" + data h = hmac.new(self.secret_access_key.encode(), digestmod=sha256) h.update(string_to_sign.encode()) sign = base64.b64encode(h.digest()).strip() signature = urllib.parse.quote_plus(sign) print("signature是:"+signature) iaasUrl = self.url + "?" + data + "&signature=" + signature print(iaasUrl) self.postResust(iaasUrl) def sort_value(self, old_dict): items = sorted(old_dict.items()) new_dict = OrderedDict() for item in items: new_dict[item[0]] = old_dict[item[0]] return new_dict x = QingApi() x.getVhost()得到的签名为：
signature是:1i700cIAv0yVLdEJ8H5e%2FBnjFkchoSdVnHmD6Wqpzdw%3D
执行 DescribeInstances 的结果为：
{ "action": "DescribeInstancesResponse", "instance_set": [ { "host_machine": "sh1br08n02", "hostname": "i-ets7af6q", "vxnets": [ { "ipv6_address": "", "vxnet_type": 1, "vxnet_id": "vxnet-phgzwim", "vxnet_name": "测试集群搭建", "role": 1, "private_ip": "192.168.8.3", "security_group": { "is_default": 1, "security_group_name": "default security group", "security_group_id": "sg-xmldyszl" }, "nic_id": "52:54:99:f4:da:2c", "security_groups": [ { "is_default": 1, "security_group_name": "default security group", "security_group_id": "sg-xmldyszl" } ] } ], "memory_current": 2048, "graphics_port": "5954", "extra": { "nic_type": "", "nic_mqueue": 0, "read_throughput": 0, "container_mode": null, "ib_sriov_type": 0, "spice_compression": null, "instance_ext_type": "", "bandwidth": 500, "filetransfer": 1, "os_disk_encryption": 0, "slots": { "i|52:54:99:f4:da:2c": "s|0x03", "d|i-ets7af6q": "s|0x07" }, "sanc_rep_count": null, "block_bus": "", "gpu_class": 0, "features": 4, "no_restrict": 0, "usb": 1, "ivshmem": [ ], "gpu_pci_nums": "", "label": null, "rg": null, "policy": null, "gpu": 0, "clipboard": 1, "qxl_number": 0, "cpu_max": 0, "cpu_model": "", "mem_max": 0, "max_bs": null, "usbredir": 1, "sriov_nic_type": 0, "no_limit": 0, "iops": 900, "throughput": 44544, "read_iops": 0, "hypervisor": "kvm", "os_disk_size": 50, "boot_dev": "", "usb3_bus": null }, "vcpus_max": 2, "image": { "ui_type": "tui", "agent_type": "pitrix", "processor_type": "64bit", "image_id": "centos77x64a", "features_supported": { "set_keypair": 1, "disk_hot_plug": 1, "root_fs_rw_online": 1, "user_data": 1, "set_pwd": 1, "root_fs_rw_offline": 1, "ipv6_supported": 1, "nic_hot_plug": 1, "join_multiple_managed_vxnets": 0, "reset_fstab": 1 }, "image_size": 20, "image_name": "CentOS 7.7 64bit", "platform": "linux", "os_family": "centos", "provider": "system", "f_resetpwd": 1, "default_passwd": "p12cHANgepwD", "default_user": "root", "features": 64 }, "graphics_passwd": "2oyPo0IAbpR9jG21Ih6CQnwqZUQfvV1s", "console_id": "qingcloud", "create_time": "2020-09-08T02:29:49Z", "alarm_status": "", "owner": "usr-CT3owI01", "place_group_id": "plg-00000101", "broker_port": "", "security_groups": [ { "is_default": 1, "security_group_name": "default security group", "security_group_id": "sg-xmldyszl" } ], "vcpus_current": 2, "instance_id": "i-ets7af6q", "instance_type": "s1.large.r1", "memory_max": 2048, "sub_code": 0, "graphics_protocol": "vnc", "label": null, "platform": "linux", "instance_class": 101, "status_time": "2021-04-20T03:23:50Z", "status": "running", "description": null, "cpu_topology": "", "tags": [ ], "transition_status": "", "eips": [ ], "controller": "self", "repl": "rpp-00000002", "broker_host": "", "cpu_oversale_rate": 5, "volume_ids": [ ], "zone_id": "sh1b", "lastest_snapshot_time": null, "instance_name": "", "cpu_model_name": "Intel(R) Xeon(R) Gold 6240 CPU @ 2.60GHz", "root_user_id": "usr-CT3owI01", "dns_aliases": [ ], "volumes": [ ], "security_group": { "is_default": 1, "security_group_name": "default security group", "security_group_id": "sg-xmldyszl" }, "resource_project_info": [ ] } ], "total_count": 1, "ret_code": 0 }