通过 API 将 zabbix 图转为 png

Get zabbix graph to png via API

我有一个登录脚本如下:

curl --location --request POST 'https://zabbixUrl.com/api_jsonrpc.php' \
--header 'Authorization: Basic bWlndWVsLmh1cnRhZG86MTczM295ZmQxVg==' \
--header 'Content-Type: application/json' \
--data-raw '{
    "jsonrpc": "2.0",
    "method": "user.login",
    "params": {
        "user": "user",
        "password": "pass"
    },
    "id": 1
}'

哪个returns:

{"jsonrpc":"2.0","result":"1g1hd43j4d3jd4jsl4n35b4211n1d2e2","id":1}

有了这个Api令牌(result),我可以执行所有Zabbix的方法,例如:

curl --location --request POST 'https://zabbixUrl.com/api_jsonrpc.php' \
--header 'Authorization: Basic bWlndWVsLmh1cnRhZG86MTczM295ZmQxVg==' \
--header 'Content-Type: application/json' \
--data-raw '
{
    "jsonrpc": "2.0",
    "method": "screenitem.get",
    "params": {
        "output": "extend",
        "screenids": "258"
    },
    "auth": "1g1hd43j4d3jd4jsl4n35b4211n1d2e2",
    "id": 1
}'

现在我正在尝试获取 PNG 格式的图表。在中间屏幕中插入 userpass 后,我可以以 PNG 格式查看此图:

现在我要做的是通过 API 获取此 PNG 图。我的方法如下(ps:包含的 url 与浏览器上使用的相同,它确实有效):

curl --header 'Authorization: Basic bWlndWVsLmh1cnRhZG86MTczM295ZmQxVg==' --data-raw 'auth:1g1hd43j4d3jd4jsl4n35b4211n1d2e2' http://zabbixUrl.com/chart2.php?graphid=123456&period=604800&stime=1614012539

使用此表格,我得到 401 error。我猜它没有正确检测到令牌。

因此,我的问题是,如何通过API获取此Zabbix图表的PNG?我该怎么做才能正确检测到令牌?

当您向 API 进行身份验证时,您使用令牌,而当您向 GUI 进行身份验证时,您需要一个 cookie。使用 curl,您需要 --cookie 选项,请参阅

在 python requests 中,您将使用 Session:请参阅 zabbix-gnomeszgetgraph.py 以获得 python 解决方案。

Zabbix 5.0 中的一个工作示例:

auth=$(curl -s --data '{ "jsonrpc": "2.0", "method": "user.login", "params": { "user": "...", "password": "..." }, "id": 1 }' --header 'Content-Type: application/json' https://.../zabbix/api_jsonrpc.php | jq -r .result)

curl --cookie "zbx_sessionid=$auth" "https://.../zabbix/chart2.php?graphid=517&from=now-2d&to=now&height=201&width=1717&profileIdx=web.charts.filter&_=up0bkgs0" -o file.png

我找到了解决方案:

import requests
import json
import shutil

​

##### GET CREDENTIALS #####
​
USER = "user"
PASSWORD = "pass"
URL_AUTH = "https://url.com/api_jsonrpc.php"

HEADER_AUTH = {
    'Authorization': 'Basic bWlndWVsLmh1cnRhZG86MTczM295ZmQxVg==',
    'Content-Type': 'application/json',
}

DATA_AUTH = """
{
    "jsonrpc": "2.0",
    "method": "user.login",
    "params": {
        "user": "%s",
        "password": "%s",
        "userData": true
    },
    "id": 1
}
""" % (USER, PASSWORD)

respAuth = requests.post(URL_AUTH, headers=HEADER_AUTH, data=DATA_AUTH)

zabbixSessionId = json.loads(respAuth.content.decode('utf8').replace("'", '"'))["result"]["sessionid"]

##### GET PNG #####

URL_CHART = "https://url.com/chart2.php?graphid=12345&period=7200"

HEADER_CHART = {
  'Authorization': 'Basic bWlndWVsLmh1cnRhZG86MTczM295ZmQxVg==',
  'Content-Type': 'image/png',
  'Cookie': 'zbx_sessionid=%s' % (zabbixSessionId)
}

PNG_PATH = "./image.png"

respChart = requests.request("POST", URL_CHART, headers=HEADER_CHART, stream=True)

with open(PNG_PATH, 'wb') as out_file:
    shutil.copyfileobj(respChart.raw, out_file)