Moodle PHP Documentation 4.4
Moodle 4.4.1 (Build: 20240610) (db07c09afc5)
oauth2_client Class Reference

OAuth 2.0 Client for using web access tokens. More...

Inheritance diagram for oauth2_client:
curl core\oauth2\client google_oauth core\oauth2\client\linkedin core_badges\oauth2\client repository_dropbox\dropbox

Public Member Functions

 __construct ($clientid, $clientsecret, moodle_url $returnurl, $scope)
 Constructor.
 
 build_post_data ($params)
 Given an array of name value pairs - build a valid HTTP POST application/x-www-form-urlencoded string.
 
 cleanopt ()
 Reset http method.
 
 delete ($url, $param=array(), $options=array())
 HTTP DELETE method.
 
 download ($requests, $options=array())
 Download multiple files in parallel.
 
 download_one ($url, $params, $options=array())
 Downloads one file and writes it to the specified file handler.
 
 get ($url, $params=array(), $options=array())
 HTTP GET method.
 
 get_accesstoken ()
 Get access token object.
 
 get_additional_login_parameters ()
 An additional array of url params to pass with a login request.
 
 get_clientid ()
 Get the client ID.
 
 get_clientsecret ()
 Get the client secret.
 
 get_errno ()
 Get curl error code.
 
 get_info ()
 Get curl information.
 
 get_login_url ()
 Returns the login link for this oauth request.
 
 get_raw_response ()
 Get raw HTTP Response Headers.
 
 get_refresh_token ()
 Get a refresh token!!!
 
 get_security ()
 Returns the current curl security helper.
 
 getResponse ()
 Get HTTP Response Headers.
 
 head ($url, $options=array())
 HTTP HEAD method.
 
 is_logged_in ()
 Is the user logged in? Note that if this is called after the first part of the authorisation flow the token is upgraded to an accesstoken.
 
 log_out ()
 Logs out of a oauth request, clearing any stored tokens.
 
 options ($url, $options=array())
 HTTP OPTIONS method.
 
 patch ($url, $params='', $options=array())
 HTTP PATCH method.
 
 post ($url, $params='', $options=array())
 HTTP POST method.
 
 put ($url, $params=array(), $options=array())
 HTTP PUT method.
 
 resetcookie ()
 Reset Cookie.
 
 resetHeader ()
 Resets the HTTP Request headers (to prepare for the new request)
 
 resetopt ()
 Resets the CURL options that have already been set.
 
 set_security ($securityobject)
 Sets the curl security helper.
 
 setHeader ($header)
 Set HTTP Request Header.
 
 setopt ($options=array())
 Set curl options.
 
 trace ($url, $options=array())
 HTTP TRACE method.
 
 upgrade_token ($code)
 Upgrade a authorization token from oauth 2.0 to an access token.
 

Static Public Member Functions

static callback_url ()
 Callback url where the request is returned to.
 
static get_cacert ()
 Get the location of ca certificates.
 
static mock_response ($response)
 For use only in unit tests - we can pre-set the next curl response.
 
static strip_double_headers ($input)
 When using a proxy, an additional HTTP response code may appear at the start of the header.
 

Public Attributes

array $_tmp_file_post_params = []
 temporary params value if the value is not belongs to class stored_file.
 
curl_cache false $cache = false
 Caches http request contents.
 
bool $emulateredirects = null
 Perform redirects at PHP level instead of relying on native cURL functionality.
 
int $errno
 error code
 
string $error
 error
 
array $header = array()
 http header
 
array $info
 cURL information
 
bool $proxy = null
 Uses proxy, null means automatic based on URL.
 
array $rawresponse = array()
 Raw response headers, needed for BC in download_file_content().
 
array $response = array()
 http's response
 
string $version = '0.4 dev'
 library version
 

Protected Member Functions

 auth_url ()
 Returns the auth url for OAuth 2.0 request.
 
 check_securityhelper_blocklist (string $url)
 check_securityhelper_blocklist.
 
 get_stored_token ()
 Retrieve a token stored.
 
 get_tokenname ()
 Returns the tokenname for the access_token to be stored through multiple requests.
 
 multi ($requests, $options=array())
 Multiple HTTP Requests This function could run multi-requests in parallel.
 
 request ($url, $options=array())
 Single HTTP Request.
 
 request ($url, $options=array(), $acceptheader='application/json')
 Make a HTTP request, adding the access token we have.
 
 reset_request_state_vars ()
 Helper function to reset the request state vars.
 
 store_token ($token)
 Store a token between requests.
 
 token_url ()
 Returns the token url for OAuth 2.0 request.
 
 use_http_get ()
 Should HTTP GET be used instead of POST? Some APIs do not support POST and want oauth to use GET instead (with the auth_token passed as a GET param).
 

Protected Attributes

stdClass $accesstoken = null
 $accesstoken access token object
 
bool $basicauth = false
 basicauth
 
string $refreshtoken = ''
 $refreshtoken refresh token string
 
string $scope = ''
 $scope of the authentication request
 

Detailed Description

OAuth 2.0 Client for using web access tokens.

http://tools.ietf.org/html/draft-ietf-oauth-v2-22

License
http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later

Constructor & Destructor Documentation

◆ __construct()

oauth2_client::__construct ( $clientid,
$clientsecret,
moodle_url $returnurl,
$scope )

Constructor.

Parameters
string$clientid
string$clientsecret
moodle_url$returnurl
string$scope

Member Function Documentation

◆ auth_url()

oauth2_client::auth_url ( )
abstractprotected

Returns the auth url for OAuth 2.0 request.

Return values
stringthe auth url

Reimplemented in core\oauth2\client, google_oauth, and repository_dropbox\dropbox.

◆ build_post_data()

oauth2_client::build_post_data ( $params)

Given an array of name value pairs - build a valid HTTP POST application/x-www-form-urlencoded string.

Parameters
array$paramsName / value pairs.
Return values
stringPOST data.

◆ callback_url()

static oauth2_client::callback_url ( )
static

Callback url where the request is returned to.

Return values
moodle_urlurl of callback

Reimplemented in core_badges\oauth2\client.

◆ check_securityhelper_blocklist()

curl::check_securityhelper_blocklist ( string $url)
protectedinherited

check_securityhelper_blocklist.

Checks whether the given URL is blocked by checking both plugin's security helpers and core curl security helper or any curl security helper that passed to curl class constructor. If ignoresecurity is set to true, skip checking and consider the url is not blocked. This augments all installed plugin's security helpers if there is any.

Parameters
string$urlthe url to check.
Return values
?string- an error message if URL is blocked or null if URL is not blocked.

◆ delete()

curl::delete ( $url,
$param = array(),
$options = array() )
inherited

HTTP DELETE method.

Parameters
string$url
array$param
array$options
Return values
string

◆ download()

curl::download ( $requests,
$options = array() )
inherited

Download multiple files in parallel.

Calls multi() with specific download headers

$c = new curl(); $file1 = fopen('a', 'wb'); $file2 = fopen('b', 'wb'); $c->download(array( array('url'=>'http://localhost/', 'file'=>$file1), array('url'=>'http://localhost/20/', 'file'=>$file2) )); fclose($file1); fclose($file2);

or

$c = new curl(); $c->download(array( array('url'=>'http://localhost/', 'filepath'=>'/tmp/file1.tmp'), array('url'=>'http://localhost/20/', 'filepath'=>'/tmp/file2.tmp') ));

Parameters
array$requestsAn array of files to request { url => url to download the file [required] file => file handler, or filepath => file path } If 'file' and 'filepath' parameters are both specified in one request, the open file handle in the 'file' parameter will take precedence and 'filepath' will be ignored.
array$optionsAn array of options to set
Return values
arrayAn array of results

◆ download_one()

curl::download_one ( $url,
$params,
$options = array() )
inherited

Downloads one file and writes it to the specified file handler.

$c = new curl(); $file = fopen('savepath', 'w'); $result = $c->download_one('http://localhost/', null, array('file' => $file, 'timeout' => 5, 'followlocation' => true, 'maxredirs' => 3)); fclose($file); $download_info = $c->get_info(); if ($result === true) { // file downloaded successfully } else { $error_text = $result; $error_code = $c->get_errno(); }

$c = new curl(); $result = $c->download_one('http://localhost/', null, array('filepath' => 'savepath', 'timeout' => 5, 'followlocation' => true, 'maxredirs' => 3)); // ... see above, no need to close handle and remove file if unsuccessful

Parameters
string$url
array | null$paramskey-value pairs to be added to $url as query string
array$optionsrequest options. Must include either 'file' or 'filepath'
Return values
bool|stringtrue on success or error string on failure

◆ get()

curl::get ( $url,
$params = array(),
$options = array() )
inherited

HTTP GET method.

Parameters
string$url
?array$params
array$options
Return values
string

◆ get_accesstoken()

oauth2_client::get_accesstoken ( )

Get access token object.

This is just a getter to read the private property.

Return values
stdClass

◆ get_additional_login_parameters()

oauth2_client::get_additional_login_parameters ( )

An additional array of url params to pass with a login request.

Return values
arrayof name value pairs.

Reimplemented in core\oauth2\client.

◆ get_cacert()

static curl::get_cacert ( )
staticinherited

Get the location of ca certificates.

Return values
stringabsolute file path or empty if default used

◆ get_clientid()

oauth2_client::get_clientid ( )

Get the client ID.

This is just a getter to read the private property.

Return values
string

◆ get_clientsecret()

oauth2_client::get_clientsecret ( )

Get the client secret.

This is just a getter to read the private property.

Return values
string

◆ get_errno()

curl::get_errno ( )
inherited

Get curl error code.

Return values
int

◆ get_info()

curl::get_info ( )
inherited

Get curl information.

Return values
array

◆ get_login_url()

oauth2_client::get_login_url ( )

Returns the login link for this oauth request.

Return values
moodle_urllogin url

Reimplemented in core_badges\oauth2\client.

◆ get_raw_response()

curl::get_raw_response ( )
inherited

Get raw HTTP Response Headers.

Return values
arrayof strings

◆ get_refresh_token()

oauth2_client::get_refresh_token ( )

Get a refresh token!!!

Return values
string

◆ get_security()

curl::get_security ( )
inherited

Returns the current curl security helper.

Return values
core\files\curl_security_helperinstance.

◆ get_stored_token()

oauth2_client::get_stored_token ( )
protected

Retrieve a token stored.

Return values
stdClass|nulltoken object

Reimplemented in core\oauth2\client, and core_badges\oauth2\client.

◆ get_tokenname()

oauth2_client::get_tokenname ( )
protected

Returns the tokenname for the access_token to be stored through multiple requests.

The default implentation is to use the classname combiend with the scope.

Return values
stringtokenname for prefernce storage

Reimplemented in core\oauth2\client.

◆ getResponse()

curl::getResponse ( )
inherited

Get HTTP Response Headers.

Return values
arrayof arrays

◆ head()

curl::head ( $url,
$options = array() )
inherited

HTTP HEAD method.

See also
request()
Parameters
string$url
array$options
Return values
string

◆ is_logged_in()

oauth2_client::is_logged_in ( )

Is the user logged in? Note that if this is called after the first part of the authorisation flow the token is upgraded to an accesstoken.

Return values
booleantrue if logged in

Reimplemented in core\oauth2\client, and core_badges\oauth2\client.

◆ log_out()

oauth2_client::log_out ( )

Logs out of a oauth request, clearing any stored tokens.

Reimplemented in core\oauth2\client.

◆ mock_response()

static curl::mock_response ( $response)
staticinherited

For use only in unit tests - we can pre-set the next curl response.

This is useful for unit testing APIs that call external systems.

Parameters
string$response

◆ multi()

oauth2_client::multi ( $requests,
$options = array() )
protected

Multiple HTTP Requests This function could run multi-requests in parallel.

Parameters
array$requestsAn array of files to request
array$optionsAn array of options to set
Return values
arrayAn array of results

Reimplemented from curl.

◆ options()

curl::options ( $url,
$options = array() )
inherited

HTTP OPTIONS method.

Parameters
string$url
array$options
Return values
string

◆ patch()

curl::patch ( $url,
$params = '',
$options = array() )
inherited

HTTP PATCH method.

Parameters
string$url
array | string$params
array$options
Return values
string

◆ post()

curl::post ( $url,
$params = '',
$options = array() )
inherited

HTTP POST method.

Parameters
string$url
array | string$params
array$options
Return values
string

◆ put()

curl::put ( $url,
$params = array(),
$options = array() )
inherited

HTTP PUT method.

Parameters
string$url
array$params
array$options
Return values
?string

◆ request() [1/2]

curl::request ( $url,
$options = array() )
protectedinherited

Single HTTP Request.

Parameters
string$urlThe URL to request
array$options
Return values
string

◆ request() [2/2]

oauth2_client::request ( $url,
$options = array(),
$acceptheader = 'application/json' )
protected

Make a HTTP request, adding the access token we have.

Parameters
string$urlThe URL to request
array$options
mixed$acceptheadermimetype (as string) or false to skip sending an accept header.
Return values
string

Reimplemented in google_oauth.

◆ reset_request_state_vars()

curl::reset_request_state_vars ( )
protectedinherited

Helper function to reset the request state vars.

Return values
void.

◆ set_security()

curl::set_security ( $securityobject)
inherited

Sets the curl security helper.

Parameters
core\files\curl_security_helper$securityobjectinstance/subclass of the base curl_security_helper class.
Return values
booltrue if the security helper could be set, false otherwise.

◆ setHeader()

curl::setHeader ( $header)
inherited

Set HTTP Request Header.

Parameters
array | string$header

◆ setopt()

curl::setopt ( $options = array())
inherited

Set curl options.

Do not use the curl constants to define the options, pass a string corresponding to that constant. Ie. to set CURLOPT_MAXREDIRS, pass array('CURLOPT_MAXREDIRS' => 10) or array('maxredirs' => 10) to this method.

Parameters
array$optionsIf array is null, this function will reset the options to default value.
Return values
void
Exceptions
coding_exceptionIf an option uses constant value instead of option name.

◆ store_token()

oauth2_client::store_token ( $token)
protected

Store a token between requests.

Currently uses session named by get_tokenname

Parameters
stdClass | null$tokentoken object to store or null to clear

Reimplemented in core\oauth2\client, and core_badges\oauth2\client.

◆ strip_double_headers()

static curl::strip_double_headers ( $input)
staticinherited

When using a proxy, an additional HTTP response code may appear at the start of the header.

For example, when using https over a proxy there may be 'HTTP/1.0 200 Connection Established'. Other codes are also possible and some may come with their own headers.

If using the return value containing all headers, this function can be called to remove unwanted doubles.

Note that it is not possible to distinguish this situation from valid data unless you know the actual response part (below the headers) will not be included in this string, or else will not 'look like' HTTP headers. As a result it is not safe to call this function for general data.

Parameters
string$inputInput HTTP response
Return values
stringHTTP response with additional headers stripped if any

◆ token_url()

oauth2_client::token_url ( )
abstractprotected

Returns the token url for OAuth 2.0 request.

Return values
stringthe auth url

Reimplemented in core\oauth2\client, google_oauth, and repository_dropbox\dropbox.

◆ trace()

curl::trace ( $url,
$options = array() )
inherited

HTTP TRACE method.

Parameters
string$url
array$options
Return values
string

◆ upgrade_token()

oauth2_client::upgrade_token ( $code)

Upgrade a authorization token from oauth 2.0 to an access token.

Parameters
string$codethe code returned from the oauth authenticaiton
Return values
booleantrue if token is upgraded succesfully

Reimplemented in core\oauth2\client.

◆ use_http_get()

oauth2_client::use_http_get ( )
protected

Should HTTP GET be used instead of POST? Some APIs do not support POST and want oauth to use GET instead (with the auth_token passed as a GET param).

Return values
booltrue if GET should be used

Member Data Documentation

◆ $emulateredirects

bool curl::$emulateredirects = null
inherited

Perform redirects at PHP level instead of relying on native cURL functionality.

Always true now.


The documentation for this class was generated from the following file: