forked from GNUsocial/gnu-social
93d25bec33
(and some API bug fixes) darcs-hash:20080730213226-ca946-eb89bad91eee630ac286d537ba42f0042b8d2109.gz
134 lines
3.7 KiB
PHP
134 lines
3.7 KiB
PHP
<?php
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/*
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* Laconica - a distributed open-source microblogging tool
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* Copyright (C) 2008, Controlez-Vous, Inc.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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if (!defined('LACONICA')) { exit(1); }
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class ApiAction extends Action {
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var $user;
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var $content_type;
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var $api_arg;
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var $api_method;
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var $api_action;
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function handle($args) {
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parent::handle($args);
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$this->api_action = $this->arg('apiaction');
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$method = $this->arg('method');
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$argument = $this->arg('argument');
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if (isset($argument)) {
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$cmdext = explode('.', $argument);
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$this->api_arg = $cmdext[0];
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$this->api_method = $method;
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$this->content_type = strtolower($cmdext[1]);
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} else {
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#content type will be an extension on the method
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$cmdext = explode('.', $method);
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$this->api_method = $cmdext[0];
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$this->content_type = strtolower($cmdext[1]);
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}
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# XXX Maybe check to see if the command actually exists first?
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if($this->requires_auth()) {
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if (!isset($_SERVER['PHP_AUTH_USER'])) {
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# This header makes basic auth go
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header('WWW-Authenticate: Basic realm="Laconica API"');
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# if the user hits cancel -- bam!
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$this->show_basic_auth_error();
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} else {
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$nickname = $_SERVER['PHP_AUTH_USER'];
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$password = $_SERVER['PHP_AUTH_PW'];
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$user = common_check_user($nickname, $password);
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if ($user) {
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$this->user = $user;
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$this->process_command();
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} else {
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# basic authentication failed
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$this->show_basic_auth_error();
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}
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}
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} else {
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$this->process_command();
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}
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}
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function process_command() {
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$action = "twitapi$this->api_action";
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$actionfile = INSTALLDIR."/actions/$action.php";
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if (file_exists($actionfile)) {
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require_once($actionfile);
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$action_class = ucfirst($action)."Action";
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$action_obj = new $action_class();
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if (method_exists($action_obj, $this->api_method)) {
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$apidata = array( 'content-type' => $this->content_type,
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'api_method' => $this->api_method,
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'api_arg' => $this->api_arg,
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'user' => $this->user);
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call_user_func(array($action_obj, $this->api_method), $_REQUEST, $apidata);
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# all API methods should exit()
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}
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}
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common_user_error("API method not found!", $code=404);
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}
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# Whitelist of API methods that don't need authentication
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function requires_auth() {
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static $noauth = array( 'statuses/public_timeline',
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'statuses/show',
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'users/show',
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'help/test',
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'help/downtime_schedule');
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static $bareauth = array('statuses/user_timeline', 'statuses/friends');
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$fullname = "$this->api_action/$this->api_method";
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if (in_array($fullname, $bareauth)) {
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# bareauth: only needs auth if without an argument
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if ($this->api_arg) {
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return false;
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} else {
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return true;
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}
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} else if (in_array($fullname, $noauth)) {
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# noauth: never needs auth
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return false;
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} else {
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# everybody else needs auth
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return true;
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}
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}
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function show_basic_auth_error() {
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header('HTTP/1.1 401 Unauthorized');
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header('Content-type: text/plain');
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print("Could not authenticate you."); # exactly what Twitter says - no \n
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exit();
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}
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}
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