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iap_curl

iap_curl is a curl wrapper for making HTTP request to IAP-protected app in CLI more easier than curl command.

Install

  1. Install Go according from the most (https://go.dev/doc/install)[up-to-date instructions] from Go.
  2. To install a local build:
make build
  1. ./airbyte-iap-curl

To test releases locally:

  1. Install goreleaser:
brew install goreleaser/tap/goreleaser
  1. Run goreleaser

Usage

Option1: Use Application Default Credential

$ export GOOGLE_APPLICATION_CREDENTIALS="/path/to/service-account.json"
$ export IAP_CLIENT_ID="342624545358-asdfd8fas9df8sd7ga0sdguadfpvqp69.apps.googleusercontent.com"
$ iap_curl http://iap-protected.webapp.com

Option2: Use Impersonate Service Account

$ export CLOUDSDK_AUTH_IMPERSONATE_SERVICE_ACCOUNT="[email protected]"
$ export IAP_CLIENT_ID="342624545358-asdfd8fas9df8sd7ga0sdguadfpvqp69.apps.googleusercontent.com"
$ iap_curl http://iap-protected.webapp.com

The options of iap_curl are fully compatible with curl command.

If you want to use httpstat instead of curl, please specify IAP_CURL_BIN environment variable:

$ export IAP_CURL_BIN="httpstat.sh"
$ iap_curl https://tellme.tokyo
Connected to 104.31.70.103:443

HTTP/2.0 200 OK
Server: cloudflare-nginx
Access-Control-Allow-Origin: *
Cache-Control: max-age=600
Cf-Ray: 3af48c40aa3694cf-NRT
Content-Type: text/html; charset=utf-8
Date: Tue, 17 Oct 2017 16:13:54 GMT
Expires: Tue, 17 Oct 2017 16:23:54 GMT
Last-Modified: Mon, 16 Oct 2017 04:33:46 GMT
Set-Cookie: __cfduid=db7e1d73f138bcb26e0d6a040e9f5df491508256834; expires=Wed, 17-Oct-18 16:13:54 GMT; path=/; domain=.tellme.tokyo; HttpOnly; Secure
Strict-Transport-Security: max-age=15552000; preload
X-Content-Type-Options: nosniff
X-Github-Request-Id: 2A8B:16E6:10351CA:186074E:59E62C3F

Body discarded

  DNS Lookup   TCP Connection   TLS Handshake   Server Processing   Content Transfer
[      2ms  |          57ms  |        320ms  |            303ms  |             0ms  ]
            |                |               |                   |                  |
   namelookup:2ms            |               |                   |                  |
                       connect:60ms          |                   |                  |
                                   pretransfer:381ms             |                  |
                                                     starttransfer:684ms            |
                                                                                total:684ms

Advanced usage

You can save the URL of frequently used service together with its Env (IAP_CLIENT_ID ...) in a JSON file (see also #1). This file is located in ~/.config/iap_curl/config.json.

Printing ID Token

If you're using another application to make requests to an IAP-protected application, you may need just an ID Token. In order to print an ID Token to use as a Bearer token:

$ iap_curl --id-token http://iap-protected.webapp.com
eyJhbGciOiJSUzI1NiIsImtp...

Option1: Use Application Default Credential

{
  "services": [
    {
      "url": "https://my.service.com/health",
      "env": {
        "GOOGLE_APPLICATION_CREDENTIALS": "/Users/b4b4r07/Downloads/my-service-dev-b5e624fd28ee.json",
        "IAP_CLIENT_ID": "839558305167-s3akt4doo38lckhaac1ucfdp0e4921tc.apps.googleusercontent.com",
        "IAP_CURL_BIN": "curl"
      }
    }
  ]
}

Option2: Use Impersonate Service Account

{
  "services": [
    {
      "url": "https://my.service.com/health",
      "env": {
        "CLOUDSDK_AUTH_IMPERSONATE_SERVICE_ACCOUNT": "[email protected]",
        "IAP_CLIENT_ID": "839558305167-s3akt4doo38lckhaac1ucfdp0e4921tc.apps.googleusercontent.com",
        "IAP_CURL_BIN": "curl"
      }
    }
  ]
}

Thanks to that, you can access more easier like curl.

$ iap_curl https://my.service.com/health

Also, some original options are added. So you can use more and more easier to access the service by using peco/fzf. For more information about its options, please see iap_curl --help.

$ iap_curl $(iap_curl --list-urls | peco) # peco is similar to fzf

Installation

Get binary from GitHub Releases and put it to your PATH or:

$ go get github.com/b4b4r07/iap_curl

License

MIT

Author

b4b4r07