chore: prepare project

Author: btry

README.md

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+# 
+
+# How to install
+
+```shell
+composer require glpi-project/rest-api-client
+```
+
+# How to use
+
+```php
+use GlpiProject\API\Rest\Client;
+use GuzzleHttp\Client as HttpClient;
+
+$client = new Client.php(new HttpClient(['base_uri' => "http://localhost/glpi/apirest.php/"]));

composer.json

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+{
+        "name" : "glpi-project/rest-api-client",
+        "type" : "library",
+        "description" : "Client for GLPI rest API",
+        "keywords" : [
+                "GLPI",
+                "rest",
+		"api",
+		"client"
+        ],
+        "homepage" : "https://github.com/glpi-project/rest-api-client",
+        "license" : "GPL-3.0+",
+        "authors" : [{
+                        "name" : "Thierry Bugier",
+                        "email" : "tbugier@teclib.com",
+                        "role" : "Developer"
+                }
+        ],
+        "require" : {
+                "php" : ">=5.6.0",
+                "guzzlehttp/guzzle": "^6.3"
+        },
+        "require-dev" : {
+                "atoum/atoum" : "^3.1"
+        },
+        "autoload" : {
+                "psr-4" : {
+                        "GlpiProject\\API\\Rest\\" : "src/GlpiProject/API/Rest/"
+                }
+        }
+}

src/GlpiProject/API/Rest/Client.php

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+<?php
+namespace GlpiProject\API\Rest;
+use GuzzleHttp\Client as HttpClient;
+use Exception;
+
+class Client {
+
+   /** @var HttpClient instance of the HTTP client */
+   private $httpClient = null;
+
+   /** @var string URL to the GLPI API rest */
+   private $url;
+
+   /** @var string Session token obtained after initSession() */
+   private $sessionToken = '';
+
+   public function __construct(HttpClient $httpClient, $url) {
+      $this->httpClient = $httpClient;
+      $this->url = $url;
+   }
+
+   public function initSessionByCredentials($user, $password) {
+      $response = $this->httpClient->get($this->url . 'initSession', ['auth' => [$user, $password]]);
+      if ($response->getStatusCode() != 200
+          || !$this->sessionToken = json_decode( (string) $response->getBody(), true)['session_token']) {
+         throw new Exception("Cannot connect to api");
+      } else {
+         return true;
+      }
+   }
+
+   public function initSessionByUserToken($userToken) {
+      $headers = $this->buildHeaders(['auth' => [$user, $password]]);
+      $response = $this->httpClient->get($this->url . 'initSession', $headers);
+      if ($response->getStatusCode() != 200
+          || !$this->sessionToken = json_decode( (string) $response->getBody(), true)['session_token']) {
+         throw new Exception("Cannot connect to api");
+      }
+   }
+
+   /**
+    * build a set of headers for the HTTP client by merging mandatory headers for rest API and provided ones
+    *
+    * @param array $headers
+    *
+    * @return array merged set of headers
+    */
+   private function buildHeaders(array $headers) {
+      $headers['Content-Type'] = 'application/json';
+      return $headers;
+   }
+}

tests/bootstrap.php

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+<?php
+require __DIR__ . '/../vendor/autoload.php';
+
+define('GLPI_URL', 'http://localhost/~dethegeek/glpi-flyvemdm-92/apirest.php/');

tests/unit/Client.php

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+<?php
+namespace GlpiProject\API\Rest\tests\units;
+use atoum;
+use GuzzleHttp\Client as HttpClient;
+
+class Client extends atoum {
+
+   public function testInitSession() {
+      $client = $this->newTestedInstance(new HttpClient(), GLPI_URL);
+      $success = $client->initSessionByCredentials('glpi', 'glpi');
+      $this->boolean($success)->isTrue();
+   }
+
+}