Permitir el acceso del agente de identidades personalizadas a la consola de AWS

Código de ejemplo con operaciones de API de consulta de IAM

Puede crear una dirección URL que ofrezca a los usuarios federados acceso directo a la AWS Management Console. Esta tarea usa IAM y la API de consulta HTTPS de AWS STS. Para obtener más información sobre cómo realizar solicitudes de consulta, consulte Making Query Requests.

Ejemplo de código que utiliza Python

En los siguientes ejemplos se muestra cómo utilizar Python para crear mediante programación una dirección URL que ofrezca a los usuarios federados acceso directo a la AWS Management Console. Se incluyen dos ejemplos:

Ambos ejemplos usan la API AWS SDK for Python (Boto3) y AssumeRole para obtener credenciales de seguridad temporales.

Uso de solicitudes GET

import urllib, json, sys
import requests # 'pip install requests'
import boto3 # AWS SDK for Python (Boto3) 'pip install boto3'

# Step 1: Authenticate user in your own identity system.

# Step 2: Using the access keys for an IAM user in your Cuenta de AWS,
# call "AssumeRole" to get temporary access keys for the federated user

# Note: Calls to AWS STS AssumeRole must be signed using the access key ID 
# and secret access key of an IAM user or using existing temporary credentials.
# The credentials can be in Amazon EC2 instance metadata, in environment variables, 
# or in a configuration file, and will be discovered automatically by the 
# client('sts') function. For more information, see the Python SDK docs:
# http://boto3.readthedocs.io/en/latest/reference/services/sts.html
# http://boto3.readthedocs.io/en/latest/reference/services/sts.html#STS.Client.assume_role
sts_connection = boto3.client('sts')

assumed_role_object = sts_connection.assume_role(
    RoleArn="arn:aws:iam::account-id:role/ROLE-NAME",
    RoleSessionName="AssumeRoleSession",
)

# Step 3: Format resulting temporary credentials into JSON
url_credentials = {}
url_credentials['sessionId'] = assumed_role_object.get('Credentials').get('AccessKeyId')
url_credentials['sessionKey'] = assumed_role_object.get('Credentials').get('SecretAccessKey')
url_credentials['sessionToken'] = assumed_role_object.get('Credentials').get('SessionToken')
json_string_with_temp_credentials = json.dumps(url_credentials)

# Step 4. Make request to AWS federation endpoint to get sign-in token. Construct the parameter string with
# the sign-in action request, a 12-hour session duration, and the JSON document with temporary credentials 
# as parameters.
request_parameters = "?Action=getSigninToken"
request_parameters += "&SessionDuration=43200"
if sys.version_info[0] < 3:
    def quote_plus_function(s):
        return urllib.quote_plus(s)
else:
    def quote_plus_function(s):
        return urllib.parse.quote_plus(s)
request_parameters += "&Session=" + quote_plus_function(json_string_with_temp_credentials)
request_url = "https://signin.aws.amazon.com/federation" + request_parameters
r = requests.get(request_url)
# Returns a JSON document with a single element named SigninToken.
signin_token = json.loads(r.text)

# Step 5: Create URL where users can use the sign-in token to sign in to 
# the console. This URL must be used within 15 minutes after the
# sign-in token was issued.
request_parameters = "?Action=login" 
request_parameters += "&Issuer=Example.org" 
request_parameters += "&Destination=" + quote_plus_function("https://console.aws.amazon.com/")
request_parameters += "&SigninToken=" + signin_token["SigninToken"]
request_url = "https://signin.aws.amazon.com/federation" + request_parameters

# Send final URL to stdout
print (request_url)

Uso de solicitudes POST

import urllib, json, sys
import requests # 'pip install requests'
import boto3 # AWS SDK for Python (Boto3) 'pip install boto3'
import os
from selenium import webdriver # 'pip install selenium', 'brew install chromedriver'

# Step 1: Authenticate user in your own identity system.

# Step 2: Using the access keys for an IAM user in your ACuenta de AWS,
# call "AssumeRole" to get temporary access keys for the federated user

# Note: Calls to AWS STS AssumeRole must be signed using the access key ID 
# and secret access key of an IAM user or using existing temporary credentials.
# The credentials can be in Amazon EC2 instance metadata, in environment variables, 

# or in a configuration file, and will be discovered automatically by the 
# client('sts') function. For more information, see the Python SDK docs:
# http://boto3.readthedocs.io/en/latest/reference/services/sts.html
# http://boto3.readthedocs.io/en/latest/reference/services/sts.html#STS.Client.assume_role
if sys.version_info[0] < 3:
    def quote_plus_function(s):
        return urllib.quote_plus(s)
else:
    def quote_plus_function(s):
        return urllib.parse.quote_plus(s)

sts_connection = boto3.client('sts')

assumed_role_object = sts_connection.assume_role(
    RoleArn="arn:aws:iam::account-id:role/ROLE-NAME",
    RoleSessionName="AssumeRoleDemoSession",
)

# Step 3: Format resulting temporary credentials into JSON
url_credentials = {}
url_credentials['sessionId'] = assumed_role_object.get('Credentials').get('AccessKeyId')
url_credentials['sessionKey'] = assumed_role_object.get('Credentials').get('SecretAccessKey')
url_credentials['sessionToken'] = assumed_role_object.get('Credentials').get('SessionToken')
json_string_with_temp_credentials = json.dumps(url_credentials)

# Step 4. Make request to AWS federation endpoint to get sign-in token. Construct the parameter string with
# the sign-in action request, a 12-hour session duration, and the JSON document with temporary credentials 
# as parameters.
request_parameters = {}
request_parameters['Action'] = 'getSigninToken'
request_parameters['SessionDuration'] = '43200'
request_parameters['Session'] = json_string_with_temp_credentials

request_url = "https://signin.aws.amazon.com/federation"
r = requests.post( request_url, data=request_parameters)

# Returns a JSON document with a single element named SigninToken.
signin_token = json.loads(r.text)

# Step 5: Create a POST request where users can use the sign-in token to sign in to 
# the console. The POST request must be made within 15 minutes after the
# sign-in token was issued.
request_parameters = {}
request_parameters['Action'] = 'login'
request_parameters['Issuer']='Example.org'
request_parameters['Destination'] = 'https://console.aws.amazon.com/'
request_parameters['SigninToken'] =signin_token['SigninToken']

jsrequest = '''
var form = document.createElement('form');
form.method = 'POST';
form.action = '{request_url}';
request_parameters = {request_parameters}
for (var param in request_parameters) {{
    if (request_parameters.hasOwnProperty(param)) {{
        const hiddenField = document.createElement('input');
        hiddenField.type = 'hidden';
        hiddenField.name = param;
        hiddenField.value = request_parameters[param];
        form.appendChild(hiddenField);
    }}
}}
document.body.appendChild(form);
form.submit();
'''.format(request_url=request_url, request_parameters=request_parameters)

driver = webdriver.Chrome()
driver.execute_script(jsrequest);

import java.net.URLEncoder;
import java.net.URL;
import java.net.URLConnection;
import java.io.BufferedReader;
import java.io.InputStreamReader;
// Available at http://www.json.org/java/index.html
import org.json.JSONObject;
import com.amazonaws.auth.AWSCredentials;
import com.amazonaws.auth.BasicAWSCredentials;
import com.amazonaws.services.securitytoken.AWSSecurityTokenServiceClient;
import com.amazonaws.services.securitytoken.model.Credentials;
import com.amazonaws.services.securitytoken.model.GetFederationTokenRequest;
import com.amazonaws.services.securitytoken.model.GetFederationTokenResult;


/* Calls to AWS STS API operations must be signed using the access key ID 
   and secret access key of an IAM user or using existing temporary 
   credentials. The credentials should not be embedded in code. For 
   this example, the code looks for the credentials in a 
   standard configuration file.
*/
AWSCredentials credentials = 
  new PropertiesCredentials(
         AwsConsoleApp.class.getResourceAsStream("AwsCredentials.properties"));

AWSSecurityTokenServiceClient stsClient = 
  new AWSSecurityTokenServiceClient(credentials);

GetFederationTokenRequest getFederationTokenRequest = 
  new GetFederationTokenRequest();
getFederationTokenRequest.setDurationSeconds(1800);
getFederationTokenRequest.setName("UserName");

// A sample policy for accessing Amazon Simple Notification Service (Amazon SNS) in the console.

String policy = "{\"Version\":\"2012-10-17\",\"Statement\":[{\"Action\":\"sns:*\"," +
  "\"Effect\":\"Allow\",\"Resource\":\"*\"}]}";

getFederationTokenRequest.setPolicy(policy);

GetFederationTokenResult federationTokenResult = 
  stsClient.getFederationToken(getFederationTokenRequest);

Credentials federatedCredentials = federationTokenResult.getCredentials();

// The issuer parameter specifies your internal sign-in
// page, for example https://mysignin.internal.mycompany.com/.
// The console parameter specifies the URL to the destination console of the
// AWS Management Console. This example goes to Amazon SNS. 
// The signin parameter is the URL to send the request to.

String issuerURL = "https://mysignin.internal.mycompany.com/";
String consoleURL = "https://console.aws.amazon.com/sns";
String signInURL = "https://signin.aws.amazon.com/federation";
  
// Create the sign-in token using temporary credentials,
// including the access key ID,  secret access key, and session token.
String sessionJson = String.format(
  "{\"%1$s\":\"%2$s\",\"%3$s\":\"%4$s\",\"%5$s\":\"%6$s\"}",
  "sessionId", federatedCredentials.getAccessKeyId(),
  "sessionKey", federatedCredentials.getSecretAccessKey(),
  "sessionToken", federatedCredentials.getSessionToken());
              
// Construct the sign-in request with the request sign-in token action, a
// 12-hour console session duration, and the JSON document with temporary 
// credentials as parameters.

String getSigninTokenURL = signInURL + 
                           "?Action=getSigninToken" +
                           "&DurationSeconds=43200" + 
                           "&SessionType=json&Session=" + 
                           URLEncoder.encode(sessionJson,"UTF-8");

URL url = new URL(getSigninTokenURL);

// Send the request to the AWS federation endpoint to get the sign-in token
URLConnection conn = url.openConnection ();

BufferedReader bufferReader = new BufferedReader(new 
  InputStreamReader(conn.getInputStream()));  
String returnContent = bufferReader.readLine();

String signinToken = new JSONObject(returnContent).getString("SigninToken");

String signinTokenParameter = "&SigninToken=" + URLEncoder.encode(signinToken,"UTF-8");

// The issuer parameter is optional, but recommended. Use it to direct users
// to your sign-in page when their session expires.

String issuerParameter = "&Issuer=" + URLEncoder.encode(issuerURL, "UTF-8");

// Finally, present the completed URL for the AWS console session to the user

String destinationParameter = "&Destination=" + URLEncoder.encode(consoleURL,"UTF-8");
String loginURL = signInURL + "?Action=login" +
                     signinTokenParameter + issuerParameter + destinationParameter;

Ejemplo que muestra cómo crear la dirección URL (Ruby)

El siguiente ejemplo muestra cómo utilizar Ruby para crear de forma programada una dirección URL que ofrezca a los usuarios federados acceso directo a la AWS Management Console. Este fragmento de código usa AWS SDK para Ruby.

require 'rubygems'
require 'json'
require 'open-uri'
require 'cgi'
require 'aws-sdk'

# Create a new STS instance
# 
# Note: Calls to AWS STS API operations must be signed using an access key ID 
# and secret access key. The credentials can be in EC2 instance metadata 
# or in environment variables and will be automatically discovered by
# the default credentials provider in the AWS Ruby SDK. 
sts = Aws::STS::Client.new()

# The following call creates a temporary session that returns 
# temporary security credentials and a session token.
# The policy grants permissions to work
# in the AWS SNS console.

session = sts.get_federation_token({
  duration_seconds: 1800,
  name: "UserName",
  policy: "{\"Version\":\"2012-10-17\",\"Statement\":{\"Effect\":\"Allow\",\"Action\":\"sns:*\",\"Resource\":\"*\"}}",
})

# The issuer value is the URL where users are directed (such as
# to your internal sign-in page) when their session expires.
#
# The console value specifies the URL to the destination console.
# This example goes to the Amazon SNS console.
#
# The sign-in value is the URL of the AWS STS federation endpoint.
issuer_url = "https://mysignin.internal.mycompany.com/"
console_url = "https://console.aws.amazon.com/sns"
signin_url = "https://signin.aws.amazon.com/federation"

# Create a block of JSON that contains the temporary credentials
# (including the access key ID, secret access key, and session token).
session_json = {
  :sessionId => session.credentials[:access_key_id],
  :sessionKey => session.credentials[:secret_access_key],
  :sessionToken => session.credentials[:session_token]
}.to_json

# Call the federation endpoint, passing the parameters
# created earlier and the session information as a JSON block. 
# The request returns a sign-in token that's valid for 15 minutes.
# Signing in to the console with the token creates a session 
# that is valid for 12 hours.
get_signin_token_url = signin_url + 
                       "?Action=getSigninToken" + 
                       "&SessionType=json&Session=" + 
                       CGI.escape(session_json)

returned_content = URI.parse(get_signin_token_url).read

# Extract the sign-in token from the information returned
# by the federation endpoint.
signin_token = JSON.parse(returned_content)['SigninToken']
signin_token_param = "&SigninToken=" + CGI.escape(signin_token)

# Create the URL to give to the user, which includes the
# sign-in token and the URL of the console to open.
# The "issuer" parameter is optional but recommended.
issuer_param = "&Issuer=" + CGI.escape(issuer_url)
destination_param = "&Destination=" + CGI.escape(console_url)
login_url = signin_url + "?Action=login" + signin_token_param + 
  issuer_param + destination_param