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use php built-in functions for parsing and building query strings #10

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use php built-in functions for parsing and building query strings #10

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2716ab9
Update callback.php
azjezz Jun 4, 2018
ab8a1a9
Update callback.php
azjezz Jun 4, 2018
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189 changes: 72 additions & 117 deletions OneNoteSamplePHP/callback.php
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Original file line number Diff line number Diff line change
Expand Up @@ -36,185 +36,140 @@

define('OAUTHURL', 'https://login.live.com/oauth20_token.srf');

function buildQueryString($array)
{
$result = '';
foreach ($array as $k => $v)
{
if ($result == '')
{
$prefix = '';
}
else
{
$prefix = '&';
}
$result .= $prefix . rawurlencode($k) . '=' . rawurlencode($v);
}

return $result;
function buildQueryString($array) {
return http_build_query($array);
}

function parseQueryString($query)
{
$result = array();
$arr = preg_split('/&/', $query);
foreach ($arr as $arg)
{
if (strpos($arg, '=') !== false)
{
$kv = preg_split('/=/', $arg);
$result[rawurldecode($kv[0])] = rawurldecode($kv[1]);
}
}
function parseQueryString($query) {
$result = [];
parse_str($query,$result);
return $result;
}

function sendRequest(
$url,
$method = 'GET',
$data = array(),
$headers = array('Content-type: application/x-www-form-urlencoded;charset=UTF-8'))
{
$context = stream_context_create(array
(
'http' => array(
'method' => $method,
'header' => $headers,
'content' => buildQueryString($data)
)
));
function sendRequest($url, $method = 'GET', $data = [], $headers = null) {
if($headers === null) {
$headers = array('Content-type: application/x-www-form-urlencoded;charset=UTF-8'));
}

$context = stream_context_create([
'http' => [
'method' => $method,
'header' => $headers,
'content' => buildQueryString($data)
]
]);

return file_get_contents($url, false, $context);
}

function requestAccessToken($content)
{
$response = sendRequest(
OAUTHURL,
'POST',
$content);
function requestAccessToken($content) {
$response = sendRequest(OAUTHURL, 'POST', $content);

if ($response !== false)
{
if ($response !== false) {
$authToken = json_decode($response);
if (!empty($authToken) && !empty($authToken->{ACCESSTOKEN}))
{

if (!empty($authToken) && !empty($authToken->{ACCESSTOKEN})) {
return $authToken;
}
}

return false;
}

function requestAccessTokenByVerifier($verifier)
{
return requestAccessToken(array(
'client_id' => CLIENTID,
'redirect_uri' => CALLBACK,
'client_secret' => CLIENTSECRET,
'code' => $verifier,
'grant_type' => 'authorization_code'
));
function requestAccessTokenByVerifier($verifier) {
return requestAccessToken([
'client_id' => CLIENTID,
'redirect_uri' => CALLBACK,
'client_secret' => CLIENTSECRET,
'code' => $verifier,
'grant_type' => 'authorization_code'
]);
}

function requestAccessTokenByRefreshToken($refreshToken)
{
return requestAccessToken(array(
'client_id' => CLIENTID,
'redirect_uri' => CALLBACK,
'client_secret' => CLIENTSECRET,
'refresh_token' => $refreshToken,
'grant_type' => 'refresh_token'
));
function requestAccessTokenByRefreshToken($refreshToken) {
return requestAccessToken([
'client_id' => CLIENTID,
'redirect_uri' => CALLBACK,
'client_secret' => CLIENTSECRET,
'refresh_token' => $refreshToken,
'grant_type' => 'refresh_token'
]);
}

function handlePageRequest()
{
if (!empty($_GET[ACCESSTOKEN]))
{
function handlePageRequest() {
if (!empty($_GET[ACCESSTOKEN])) {
// There is a token available already. It should be the token flow. Ignore it.
return;
}

$verifier = $_GET[CODE];
if (!empty($verifier))
{
if (!empty($verifier)) {
$token = requestAccessTokenByVerifier($verifier);
if ($token !== false)
{
if ($token !== false) {
handleTokenResponse($token);
}
else
{
handleTokenResponse(null, array(
ERRORCODE => 'request_failed',
ERRORDESC => 'Failed to retrieve user access token.'));
}
} else {
handleTokenResponse(null, [
ERRORCODE => 'request_failed',
ERRORDESC => 'Failed to retrieve user access token.'
]);
}

return;
}

$refreshToken = readRefreshToken();
if (!empty($refreshToken))
{
if (!empty($refreshToken)) {
$token = requestAccessTokenByRefreshToken($refreshToken);
if ($token !== false)
{
if ($token !== false) {
handleTokenResponse($token);
}
else
{
handleTokenResponse(null, array(
ERRORCODE => 'request_failed',
ERRORDESC => 'Failed to retrieve user access token.'));
} else {
handleTokenResponse(null, [
ERRORCODE => 'request_failed',
ERRORDESC => 'Failed to retrieve user access token.')
];
}

return;
}

$errorCode = $_GET[ERRORCODE];
$errorDesc = $_GET[ERRORDESC];
$errorCode = isset($_GET[ERRORCODE]) ? $_GET[ERRORCODE] : null;
$errorDesc = isset($_GET[ERRORDESC]) ? $_GET[ERRORDESC] : null;

if (!empty($errorCode))
{
handleTokenResponse(null, array(
ERRORCODE => $errorCode,
ERRORDESC => $errorDesc));
if (!empty($errorCode)) {
handleTokenResponse(null, [
ERRORCODE => $errorCode,
ERRORDESC => $errorDesc
]);
}
}

function readRefreshToken()
{
function readRefreshToken() {
// read refresh token of the user identified by the site.
return null;
}

function saveRefreshToken($refreshToken)
{
function saveRefreshToken($refreshToken) {
// save the refresh token and associate it with the user identified by your site credential system.
}

function handleTokenResponse($token, $error = null)
{
$authCookie = $_COOKIE[AUTHCOOKIE];
function handleTokenResponse($token, $error = null) {
$authCookie = isset($_COOKIE[AUTHCOOKIE]) ? $_COOKIE[AUTHCOOKIE] : '';
$cookieValues = parseQueryString($authCookie);

if (!empty($token))
{
if (!empty($token)) {
$cookieValues[ACCESSTOKEN] = $token->{ACCESSTOKEN};
$cookieValues[AUTHENTICATION_TOKEN] = $token->{AUTHENTICATION_TOKEN};
$cookieValues[SCOPE] = $token->{SCOPE};
$cookieValues[EXPIRESIN] = $token->{EXPIRESIN};

if (!empty($token->{ REFRESHTOKEN }))
if (!empty($token->{REFRESHTOKEN}))
{
saveRefreshToken($token->{ REFRESHTOKEN });
saveRefreshToken($token->{REFRESHTOKEN});
}
}

if (!empty($error))
{
if (!empty($error)) {
$cookieValues[ERRORCODE] = $error[ERRORCODE];
$cookieValues[ERRORDESC] = $error[ERRORDESC];
}
Expand All @@ -236,4 +191,4 @@ function handleTokenResponse($token, $error = null)
</head>
<body>
</body>
</html>
</html>