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<?php
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/**
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* Copyright 2014 Freemius, Inc.
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*
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* Licensed under the GPL v2 (the "License"); you may
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* not use this file except in compliance with the License. You may obtain
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* a copy of the License at
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*
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* http://choosealicense.com/licenses/gpl-v2/
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*/
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define( 'FS_API__VERSION', '1' );
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define( 'FS_SDK__PATH', dirname( __FILE__ ) );
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define( 'FS_SDK__EXCEPTIONS_PATH', FS_SDK__PATH . '/Exceptions/' );
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if ( ! function_exists( 'json_decode' ) ) {
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throw new Exception( 'Freemius needs the JSON PHP extension.' );
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}
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// Include all exception files.
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$exceptions = array(
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'Exception',
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'InvalidArgumentException',
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'ArgumentNotExistException',
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'EmptyArgumentException',
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'OAuthException'
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);
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foreach ( $exceptions as $e ) {
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require FS_SDK__EXCEPTIONS_PATH . $e . '.php';
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}
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abstract class Freemius_Api_Base {
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const VERSION = '1.0.4';
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const FORMAT = 'json';
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protected $_id;
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protected $_public;
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protected $_secret;
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protected $_scope;
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protected $_sandbox;
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/**
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* @param string $pScope 'app', 'developer', 'user' or 'install'.
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* @param number $pID Element's id.
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* @param string $pPublic Public key.
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* @param string $pSecret Element's secret key.
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* @param bool $pSandbox Whether or not to run API in sandbox mode.
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*/
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public function Init( $pScope, $pID, $pPublic, $pSecret, $pSandbox = false ) {
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$this->_id = $pID;
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$this->_public = $pPublic;
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$this->_secret = $pSecret;
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$this->_scope = $pScope;
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$this->_sandbox = $pSandbox;
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}
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public function IsSandbox() {
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return $this->_sandbox;
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}
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function CanonizePath( $pPath ) {
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$pPath = trim( $pPath, '/' );
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$query_pos = strpos( $pPath, '?' );
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$query = '';
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if ( false !== $query_pos ) {
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$query = substr( $pPath, $query_pos );
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$pPath = substr( $pPath, 0, $query_pos );
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}
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// Trim '.json' suffix.
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$format_length = strlen( '.' . self::FORMAT );
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$start = $format_length * ( - 1 ); //negative
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if ( substr( strtolower( $pPath ), $start ) === ( '.' . self::FORMAT ) ) {
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$pPath = substr( $pPath, 0, strlen( $pPath ) - $format_length );
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}
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switch ( $this->_scope ) {
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case 'app':
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$base = '/apps/' . $this->_id;
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break;
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case 'developer':
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$base = '/developers/' . $this->_id;
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break;
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case 'user':
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$base = '/users/' . $this->_id;
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break;
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case 'plugin':
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$base = '/plugins/' . $this->_id;
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break;
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case 'install':
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$base = '/installs/' . $this->_id;
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break;
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default:
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throw new Freemius_Exception( 'Scope not implemented.' );
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}
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return '/v' . FS_API__VERSION . $base .
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( ! empty( $pPath ) ? '/' : '' ) . $pPath .
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( ( false === strpos( $pPath, '.' ) ) ? '.' . self::FORMAT : '' ) . $query;
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}
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abstract function MakeRequest( $pCanonizedPath, $pMethod = 'GET', $pParams = array() );
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/**
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* @param string $pPath
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* @param string $pMethod
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* @param array $pParams
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*
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* @return object[]|object|null
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*/
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private function _Api( $pPath, $pMethod = 'GET', $pParams = array() ) {
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$pMethod = strtoupper( $pMethod );
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try {
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$result = $this->MakeRequest( $pPath, $pMethod, $pParams );
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} catch ( Freemius_Exception $e ) {
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// Map to error object.
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$result = (object) $e->getResult();
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} catch ( Exception $e ) {
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// Map to error object.
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$result = (object) array(
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'error' => array(
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'type' => 'Unknown',
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'message' => $e->getMessage() . ' (' . $e->getFile() . ': ' . $e->getLine() . ')',
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'code' => 'unknown',
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'http' => 402
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)
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);
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}
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return $result;
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}
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/**
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* If successful connectivity to the API endpoint using ping.json endpoint.
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*
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* - OR -
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*
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* Validate if ping result object is valid.
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*
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* @param mixed $pPong
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*
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* @return bool
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*/
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public function Test( $pPong = null ) {
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$pong = is_null( $pPong ) ? $this->Ping() : $pPong;
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return ( is_object( $pong ) && isset( $pong->api ) && 'pong' === $pong->api );
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}
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/**
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* Ping API to test connectivity.
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*
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* @return object
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*/
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public function Ping() {
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return $this->_Api( '/v' . FS_API__VERSION . '/ping.json' );
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}
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/**
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* Find clock diff between current server to API server.
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*
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* @since 1.0.2
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* @return int Clock diff in seconds.
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*/
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public function FindClockDiff() {
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$time = time();
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$pong = $this->_Api( '/v' . FS_API__VERSION . '/ping.json' );
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return ( $time - strtotime( $pong->timestamp ) );
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}
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public function Api( $pPath, $pMethod = 'GET', $pParams = array() ) {
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return $this->_Api( $this->CanonizePath( $pPath ), $pMethod, $pParams );
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}
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/**
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* Base64 encoding that does not need to be urlencode()ed.
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* Exactly the same as base64_encode except it uses
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* - instead of +
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* _ instead of /
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* No padded =
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*
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* @param string $input base64UrlEncoded string
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*
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* @return string
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*/
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protected static function Base64UrlDecode( $input ) {
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return base64_decode( strtr( $input, '-_', '+/' ) );
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}
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/**
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201
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* Base64 encoding that does not need to be urlencode()ed.
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* Exactly the same as base64_encode except it uses
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* - instead of +
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* _ instead of /
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*
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* @param string $input string
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*
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* @return string base64Url encoded string
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*/
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protected static function Base64UrlEncode( $input ) {
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$str = strtr( base64_encode( $input ), '+/', '-_' );
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$str = str_replace( '=', '', $str );
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return $str;
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}
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217
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}
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The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.