https 서버와 통신하기
LTE CATM1 내장형 모뎀의 AT커맨드를 이용해서 https 서버와 통신하길 원하시는
개발자분의 요구사항으로 테스트를 진행 했습니다.
먼저 https 테스트에 괜찮은 서버를 StackOverFlow (https://stackoverflow.com/)에서 검색해 보았는데,
아래와 같은 httpbin.org가 괜찮다는 추천 의견이 있어서 해당 사이트를 서버로 선정 했습니다.
httpbin.org
A simple HTTP Request & Response Service. Run locally: $ docker run -p 80:80 kennethreitz/httpbin
httpbin.org
CATM1 모뎀에 서버에서 제공하는 인증서를 설치해야 하는데 먼저 웹브라우저에서 아래와 같은 방법으로 인증서를 다운로드 받습니다.
1. 자물쇠 모양 아이콘을 클릭 합니다.
2. '이 사이트는 보안 연결(HTTPS)이 사용되었습니다.' 를 클릭 합니다.
3. '인증서가 유효함'을 클릭 합니다.
4. '세부정보' 탭을 누르고 아래 '내보내기' 버튼을 클릭 합니다.
5. 원하는 위치로 이동해서 아래 저장 버튼을 누릅니다.
6. 해당 파일을 TEXT 에디터로 가져와서 오픈 후 아래와 같이 명령어를 추가 합니다. (Notepad++ 사용)
7. 윈도우에서 작업시 공백문자 문제가 발생할 수 있으므로 아래와 같은 설정을 해주셔야 합니다. (Notepad++)
편집 --> 줄의 끝문자(EOL) 변환 --> Unix (LF) 클릭
인증서 내용과 AT커맨드 명령을 함께 편집한 내용은 LTE CATM1 내장형 모뎀에 인증서 설치할 때 사용합니다.
LTE CATM1 내장형 모뎀 AT커맨드는 아래와 같은 순서로 진행 했습니다. QCOM 프로그램을 사용해서 진행 했습니다.
QCOM 다운로드 ( https://github.com/codezoo-ltd/CodeZoo_CATM1_Arduino/tree/master/Tool )
/* 1. 망 연결 체크(기지국에 연결되어 있어야 합니다!) */
AT
OK
AT+CEREG?
+CEREG: 0,5
OK
AT+COPS?
+COPS: 0,0,"DATA ONLY",7
OK
/* 2. httpbin.org 테스트 서버 인증서 CATM1 모뎀에 설치 */
AT%CERTCMD="WRITE","httpbin.org.crt",0,"-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----"
OK
AT%CERTCFG="ADD",3,"httpbin.org.crt",,, //TLS slot 3 save
OK
/* 3. HTTPS 접속 서버 설정 */
AT%HTTPCFG="NODES",3,"https://httpbin.org/"
OK
/* 4. HTTP Allow all events */
AT%HTTPEV="ALL",1
OK
/* 5. TLS Setup, 2: authenticate server side only, 3: TLS save slot */
AT%HTTPCFG="TLS",3,2,3
OK
/* 6. Trigger HTTPS GET */
AT%HTTPCMD="GET",3
OK
// HTTS Server Response (unsolicited response received),
// 받을 데이터는 Header 239, 컨텐츠 9593, 총 9832를 가져와야 함.
%HTTPEVU:"GETRCV",3,0,239,9593
/* 7. HTTPS GET Data Read (in modem buffer) */
// 한번에 AT커맨드로 받을 수 있는 최대값 3000바이트 입력
AT%HTTPREAD=3,3000
%HTTPREAD: 3000,8191
HTTP/1.1 200 OK
Date: Tue, 06 Dec 2022 08:21:48 GMT
Content-Type: text/html; charset=utf-8
Content-Length: 9593
Connection: keep-alive
Server: gunicorn/19.9.0
Access-Control-Allow-Origin: *
Access-Control-Allow-Credentials: true
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>httpbin.org</title>
rel="stylesheet">
<link rel="stylesheet" type="text/css" href="/flasgger_static/swagger-ui.css">
<link rel="icon" type="image/png" href="/static/favicon.ico" sizes="64x64 32x32 16x16" />
<style>
html {
box-sizing: border-box;
overflow: -moz-scrollbars-vertical;
overflow-y: scroll;
}
*,
*:before,
*:after {
box-sizing: inherit;
}
body {
margin: 0;
background: #fafafa;
}
</style>
</head>
<body>
<a href="https://github.com/requests/httpbin" class="github-corner" aria-label="View source on Github">
<svg width="80" height="80" viewBox="0 0 250 250" style="fill:#151513; color:#fff; position: absolute; top: 0; border: 0; right: 0;"
aria-hidden="true">
<path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path>
<path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2"
fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path>
<path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z"
fill="currentColor" class="octo-body"></path>
</svg>
</a>
<svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" style="position:absolute;width:0;height:0">
<defs>
<symbol viewBox="0 0 20 20" id="unlocked">
<path d="M15.8 8H14V5.6C14 2.703 12.665 1 10 1 7.334 1 6 2.703 6 5.6V6h2v-.801C8 3.754 8.797 3 10 3c1.203 0 2 .754 2 2.199V8H4c-.553 0-1 .646-1 1.199V17c0 .549.428 1.139.951 1.307l1.197.387C5.672 18.861 6.55 19 7.1 19h5.8c.549 0 1.428-.139 1.951-.307l1.196-.387c.524-.167.953-.757.953-1.306V9.199C17 8.646 16.352 8 15.8 8z"></path>
</symbol>
<symbol viewBox="0 0 20 20" id="locked">
<path d="M15.8 8H14V5.6C14 2.7
OK
// 한번에 AT커맨드로 받을 수 있는 최대값 3000바이트 입력
AT%HTTPREAD=3,3000
%HTTPREAD: 3000,6832
03 12.665 1 10 1 7.334 1 6 2.703 6 5.6V8H4c-.553 0-1 .646-1 1.199V17c0 .549.428 1.139.951 1.307l1.197.387C5.672 18.861 6.55 19 7.1 19h5.8c.549 0 1.428-.139 1.951-.307l1.196-.387c.524-.167.953-.757.953-1.306V9.199C17 8.646 16.352 8 15.8 8zM12 8H8V5.199C8 3.754 8.797 3 10 3c1.203 0 2 .754 2 2.199V8z"
/>
</symbol>
<symbol viewBox="0 0 20 20" id="close">
<path d="M14.348 14.849c-.469.469-1.229.469-1.697 0L10 11.819l-2.651 3.029c-.469.469-1.229.469-1.697 0-.469-.469-.469-1.229 0-1.697l2.758-3.15-2.759-3.152c-.469-.469-.469-1.228 0-1.697.469-.469 1.228-.469 1.697 0L10 8.183l2.651-3.031c.469-.469 1.228-.469 1.697 0 .469.469.469 1.229 0 1.697l-2.758 3.152 2.758 3.15c.469.469.469 1.229 0 1.698z"
/>
</symbol>
<symbol viewBox="0 0 20 20" id="large-arrow">
<path d="M13.25 10L6.109 2.58c-.268-.27-.268-.707 0-.979.268-.27.701-.27.969 0l7.83 7.908c.268.271.268.709 0 .979l-7.83 7.908c-.268.271-.701.27-.969 0-.268-.269-.268-.707 0-.979L13.25 10z"
/>
</symbol>
<symbol viewBox="0 0 20 20" id="large-arrow-down">
<path d="M17.418 6.109c.272-.268.709-.268.979 0s.271.701 0 .969l-7.908 7.83c-.27.268-.707.268-.979 0l-7.908-7.83c-.27-.268-.27-.701 0-.969.271-.268.709-.268.979 0L10 13.25l7.418-7.141z"
/>
</symbol>
<symbol viewBox="0 0 24 24" id="jump-to">
<path d="M19 7v4H5.83l3.58-3.59L8 6l-6 6 6 6 1.41-1.41L5.83 13H21V7z" />
</symbol>
<symbol viewBox="0 0 24 24" id="expand">
<path d="M10 18h4v-2h-4v2zM3 6v2h18V6H3zm3 7h12v-2H6v2z" />
</symbol>
</defs>
</svg>
<div id="swagger-ui">
<div data-reactroot="" class="swagger-ui">
<div>
<div class="information-container wrapper">
<section class="block col-12">
<div class="info">
<hgroup class="main">
<h2 class="title">httpbin.org
<small>
<pre class="version">0.9.2</pre>
</small>
</h2>
<pre class="base-url">[ Base URL: httpbin.org/ ]</pre>
</hgroup>
<div class="description">
<div class="markdown">
<p>A simple HTTP Request & Response Service.
<br>
<br>
<b>Run locally: </b>
<code>$ docker run -p 80:80 kennethreitz/httpbin</code>
</p>
</div>
</div>
OK
// 한번에 AT커맨드로 받을 수 있는 최대값 3000바이트 입력
AT%HTTPREAD=3,3000
%HTTPREAD: 3000,3832
<div>
<div>
<a href="https://kennethreitz.org" target="_blank">the developer - Website</a>
</div>
<a href="mailto:me@kennethreitz.org">Send email to the developer</a>
</div>
</div>
<!-- ADDS THE LOADER SPINNER -->
<div class="loading-container">
<div class="loading"></div>
</div>
</section>
</div>
</div>
</div>
</div>
<div class='swagger-ui'>
<div class="wrapper">
<section class="clear">
<span style="float: right;">
[Powered by
<a target="_blank" href="https://github.com/rochacbruno/flasgger">Flasgger]
<br>
</span>
</section>
</div>
</div>
<script src="/flasgger_static/swagger-ui-bundle.js"> </script>
<script src="/flasgger_static/swagger-ui-standalone-preset.js"> </script>
<script src='/flasgger_static/lib/jquery.min.js' type='text/javascript'></script>
<script>
window.onload = function () {
fetch("/spec.json")
.then(function (response) {
response.json()
.then(function (json) {
var current_protocol = window.location.protocol.slice(0, -1);
if (json.schemes[0] != current_protocol) {
// Switches scheme to the current in use
var other_protocol = json.schemes[0];
json.schemes[0] = current_protocol;
json.schemes[1] = other_protocol;
}
json.host = window.location.host; // sets the current host
const ui = SwaggerUIBundle({
spec: json,
validatorUrl: null,
dom_id: '#swagger-ui',
deepLinking: true,
jsonEditor: true,
docExpansion: "none",
apisSorter: "alpha",
//operationsSorter: "alpha",
presets: [
SwaggerUIBundle.presets.apis,
// yay ES6 modules ?? Array.isArray(SwaggerUIStandalonePreset) ? SwaggerUIStandalonePreset : SwaggerUIStandalonePreset.default
],
plugins: [
SwaggerUIBundle.plug
OK
// 한번에 AT커맨드로 받을 수 있는 최대값 3000바이트 입력
AT%HTTPREAD=3,3000
%HTTPREAD: 832,832
ins.DownloadUrl
],
// layout: "StandaloneLayout" // uncomment to enable the green top header
})
window.ui = ui
// uncomment to rename the top brand if layout is enabled
// $(".topbar-wrapper .link span").replaceWith("<span>httpbin</span>");
})
})
}
</script> <div class='swagger-ui'>
<div class="wrapper">
<section class="block col-12 block-desktop col-12-desktop">
<div>
<h2>Other Utilities</h2>
<ul>
<li>
<a href="/forms/post">HTML form</a> that posts to /post /forms/post</li>
</ul>
<br />
<br />
</div>
</section>
</div>
</div>
</body>
</html>
OK
LTE-CATM1 내장형 모뎀 대량 구매 상담, 외주 개발, 협업 문의, vodafone IoT유심 문의
(주)코드주
장병남 대표 010-8965-1323 rooney.jang@codezoo.co.kr
Vodafone Global IoT SIM Card : codezoo
[codezoo] IoT Global SIM, IoT Connectivity, IoT Device
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