misuzu/src/SharpChat/SharpChatRoutes.php

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<?php
namespace Misuzu\SharpChat;
use Index\Colour\Colour;
use Index\Routing\IRouter;
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use Misuzu\Config\IConfig;
use Misuzu\Config\CfgType;
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// Replace
use Misuzu\AuthToken;
use Misuzu\Emoticon;
use Misuzu\Users\User;
use Misuzu\Users\UserSession;
use Misuzu\Users\UserWarning;
use Misuzu\Users\UserNotFoundException;
use Misuzu\Users\UserWarningCreationFailedException;
final class SharpChatRoutes {
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private IConfig $config;
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private string $hashKey = 'woomy';
public function __construct(IRouter $router, IConfig $config) {
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$this->config = $config;
$hashKey = $this->config->getValue('hashKey', CfgType::T_STR, '');
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if(empty($hashKey)) {
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$hashKeyPath = $this->config->getValue('hashKeyPath', CfgType::T_STR, '');
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if(is_file($hashKeyPath))
$this->hashKey = file_get_contents($hashKeyPath);
} else {
$this->hashKey = $hashKey;
}
// Public endpoints
$router->get('/_sockchat/emotes', [$this, 'emotes']);
$router->get('/_sockchat/login', [$this, 'login']);
$router->options('/_sockchat/token', [$this, 'token']);
$router->get('/_sockchat/token', [$this, 'token']);
// Private endpoints
$router->get('/_sockchat/resolve', [$this, 'resolve']);
$router->post('/_sockchat/bump', [$this, 'bump']);
$router->post('/_sockchat/verify', [$this, 'verify']);
$router->get('/_sockchat/bans', [$this, 'bans']);
$router->get('/_sockchat/bans/check', [$this, 'checkBan']);
$router->post('/_sockchat/bans/create', [$this, 'createBan']);
$router->delete('/_sockchat/bans/remove', [$this, 'removeBan']);
}
public static function emotes($response, $request): array {
$response->setHeader('Access-Control-Allow-Origin', '*');
$response->setHeader('Access-Control-Allow-Methods', 'GET');
$raw = Emoticon::all();
$out = [];
foreach($raw as $emote) {
$strings = [];
foreach($emote->getStrings() as $string)
$strings[] = sprintf(':%s:', $string->emote_string);
$out[] = [
'Text' => $strings,
'Image' => $emote->getUrl(),
'Hierarchy' => $emote->getRank(),
];
}
return $out;
}
public function login($response, $request): void {
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$currentUser = User::getCurrent();
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$configKey = $request->hasParam('legacy') ? 'chatPath.legacy' : 'chatPath.normal';
$chatPath = $this->config->getValue($configKey, CfgType::T_STR, '/');
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$response->redirect(
$currentUser === null
? url('auth-login')
: $chatPath
);
}
public function token($response, $request) {
$host = $request->hasHeader('Host') ? $request->getHeaderFirstLine('Host') : '';
$origin = $request->hasHeader('Origin') ? $request->getHeaderFirstLine('Origin') : '';
$originHost = strtolower(parse_url($origin, PHP_URL_HOST) ?? '');
if(!empty($originHost) && $originHost !== $host) {
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$whitelist = $this->config->getValue('origins', CfgType::T_ARR, []);
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if(!in_array($originHost, $whitelist))
return 403;
$originProto = strtolower(parse_url($origin, PHP_URL_SCHEME));
$origin = $originProto . '://' . $originHost;
$response->setHeader('Access-Control-Allow-Origin', $origin);
$response->setHeader('Access-Control-Allow-Methods', 'OPTIONS, GET');
$response->setHeader('Access-Control-Allow-Credentials', 'true');
$response->setHeader('Vary', 'Origin');
}
if($request->getMethod() === 'OPTIONS')
return 204;
if(!UserSession::hasCurrent())
return ['ok' => false];
$session = UserSession::getCurrent();
$user = $session->getUser();
$token = AuthToken::create($user, $session);
return [
'ok' => true,
'usr' => $user->getId(),
'tkn' => $token->pack(),
];
}
public function resolve($response, $request): array {
$userHash = $request->hasHeader('X-SharpChat-Signature')
? $request->getHeaderFirstLine('X-SharpChat-Signature') : '';
$method = (string)$request->getParam('m');
$param = (string)$request->getParam('p');
$realHash = hash_hmac('sha256', "resolve#{$method}#{$param}", $this->hashKey);
if(!hash_equals($realHash, $userHash))
return [];
try {
switch($method) {
case 'id':
$userInfo = User::byId((int)$param);
break;
case 'name':
$userInfo = User::byUsername($param);
break;
}
} catch(UserNotFoundException $ex) {}
if(!isset($userInfo))
return [];
return [
'user_id' => $userInfo->getId(),
'username' => $userInfo->getUsername(),
'colour_raw' => Colour::toMisuzu($userInfo->getColour()),
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'rank' => $rank = $userInfo->getRank(),
'perms' => SharpChatPerms::convert($userInfo),
];
}
public function bump($response, $request) {
if(!$request->isStringContent())
return 400;
$userHash = $request->hasHeader('X-SharpChat-Signature')
? $request->getHeaderFirstLine('X-SharpChat-Signature') : '';
$bumpString = (string)$request->getContent();
$realHash = hash_hmac('sha256', $bumpString, $this->hashKey);
if(!hash_equals($realHash, $userHash))
return;
$bumpInfo = json_decode($bumpString);
if(empty($bumpInfo))
return;
foreach($bumpInfo as $bumpUser)
try {
User::byId($bumpUser->id)->bumpActivity($bumpUser->ip);
} catch(UserNotFoundException $ex) {}
}
public function verify($response, $request): array {
if($request->isStreamContent())
$authInfo = json_decode((string)$request->getContent());
elseif($request->isJsonContent())
$authInfo = $request->getContent()->getContent(); // maybe change this api lol, this looks silly
else
return ['success' => false, 'reason' => 'request'];
$userHash = $request->hasHeader('X-SharpChat-Signature')
? $request->getHeaderFirstLine('X-SharpChat-Signature') : '';
if(strlen($userHash) !== 64)
return ['success' => false, 'reason' => 'length'];
if(!isset($authInfo->user_id, $authInfo->token, $authInfo->ip))
return ['success' => false, 'reason' => 'data'];
$realHash = hash_hmac('sha256', implode('#', [$authInfo->user_id, $authInfo->token, $authInfo->ip]), $this->hashKey);
if(!hash_equals($realHash, $userHash))
return ['success' => false, 'reason' => 'hash'];
try {
$userInfo = User::byId($authInfo->user_id);
} catch(UserNotFoundException $ex) {
return ['success' => false, 'reason' => 'user'];
}
$authMethod = mb_substr($authInfo->token, 0, 5);
if($authMethod === 'SESS:') {
$sessionToken = mb_substr($authInfo->token, 5);
$authToken = AuthToken::unpack($sessionToken);
if($authToken->isValid())
$sessionToken = $authToken->getSessionToken();
try {
$sessionInfo = UserSession::byToken($sessionToken);
} catch(UserSessionNotFoundException $ex) {
return ['success' => false, 'reason' => 'token'];
}
if($sessionInfo->getUserId() !== $userInfo->getId())
return ['success' => false, 'reason' => 'user'];
if($sessionInfo->hasExpired()) {
$sessionInfo->delete();
return ['success' => false, 'reason' => 'expired'];
}
$sessionInfo->bump($authInfo->ip);
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} else {
return ['success' => false, 'reason' => 'unsupported'];
}
$userInfo->bumpActivity($authInfo->ip);
return [
'success' => true,
'user_id' => $userInfo->getId(),
'username' => $userInfo->getUsername(),
'colour_raw' => Colour::toMisuzu($userInfo->getColour()),
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'rank' => $rank = $userInfo->getRank(),
'hierarchy' => $rank,
'is_silenced' => date('c', $userInfo->isSilenced() || $userInfo->isBanned() ? ($userInfo->isActiveWarningPermanent() ? strtotime('10 years') : $userInfo->getActiveWarningExpiration()) : 0),
'perms' => SharpChatPerms::convert($userInfo),
];
}
public function bans($response, $request): array {
$userHash = $request->hasHeader('X-SharpChat-Signature')
? $request->getHeaderFirstLine('X-SharpChat-Signature') : '';
$realHash = hash_hmac('sha256', 'givemethebeans', $this->hashKey);
if(!hash_equals($realHash, $userHash))
return [];
$warnings = UserWarning::byActive();
$bans = [];
foreach($warnings as $warning) {
if(!$warning->isBan() || $warning->hasExpired())
continue;
$isPermanent = $warning->isPermanent();
$userInfo = $warning->getUser();
$bans[] = [
'user_id' => $userInfo->getId(),
'id' => $userInfo->getId(),
'username' => $userInfo->getUsername(),
'colour_raw' => Colour::toMisuzu($userInfo->getColour()),
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'rank' => $rank = $userInfo->getRank(),
'ip' => $warning->getUserRemoteAddress(),
'is_permanent' => $isPermanent,
'expires' => date('c', $isPermanent ? 0x7FFFFFFF : $warning->getExpirationTime()),
'perms' => SharpChatPerms::convert($userInfo),
];
}
return $bans;
}
public function checkBan($response, $request): array {
$userHash = $request->hasHeader('X-SharpChat-Signature')
? $request->getHeaderFirstLine('X-SharpChat-Signature') : '';
$ipAddress = (string)$request->getParam('a');
$userId = (int)$request->getParam('u', FILTER_SANITIZE_NUMBER_INT);
$realHash = hash_hmac('sha256', "check#{$ipAddress}#{$userId}", $this->hashKey);
if(!hash_equals($realHash, $userHash))
return [];
$response = [];
$warning = UserWarning::byRemoteAddressActive($ipAddress)
?? UserWarning::byUserIdActive($userId);
if($warning !== null) {
$response['warning'] = $warning->getId();
$response['id'] = $warning->getUserId();
$response['user_id'] = $warning->getUserId();
$response['ip'] = $warning->getUserRemoteAddress();
$response['is_permanent'] = $warning->isPermanent();
$response['expires'] = date('c', $response['is_permanent'] ? 0x7FFFFFFF : $warning->getExpirationTime());
} else {
$response['expires'] = date('c', 0);
$response['is_permanent'] = false;
}
return $response;
}
public function createBan($response, $request): int {
if(!$request->isFormContent())
return 400;
$userHash = $request->hasHeader('X-SharpChat-Signature')
? $request->getHeaderFirstLine('X-SharpChat-Signature') : '';
$content = $request->getContent();
$userId = (int)$content->getParam('u', FILTER_SANITIZE_NUMBER_INT);
$modId = (int)$content->getParam('m', FILTER_SANITIZE_NUMBER_INT);
$duration = (int)$content->getParam('d', FILTER_SANITIZE_NUMBER_INT);
$isPermanent = (int)$content->getParam('p', FILTER_SANITIZE_NUMBER_INT);
$reason = (string)$content->getParam('r');
$realHash = hash_hmac('sha256', "create#{$userId}#{$modId}#{$duration}#{$isPermanent}#{$reason}", $this->hashKey);
if(!hash_equals($realHash, $userHash))
return 403;
if(empty($reason))
$reason = 'Banned through chat.';
if($isPermanent)
$duration = -1;
elseif($duration < 1)
return 400;
try {
$userInfo = User::byId($userId);
} catch(UserNotFoundException $ex) {
return 404;
}
try {
$modInfo = User::byId($modId);
} catch(UserNotFoundException $ex) {
return 404;
}
try {
UserWarning::create(
$userInfo,
$modInfo,
UserWarning::TYPE_BAHN,
$duration,
$reason
);
} catch(UserWarningCreationFailedException $ex) {
return 500;
}
return 201;
}
public function removeBan($response, $request): int {
$userHash = $request->hasHeader('X-SharpChat-Signature')
? $request->getHeaderFirstLine('X-SharpChat-Signature') : '';
$type = (string)$request->getParam('t');
$subject = (string)$request->getParam('s');
$realHash = hash_hmac('sha256', "remove#{$type}#{$subject}", $this->hashKey);
if(!hash_equals($realHash, $userHash))
return 403;
$warning = null;
switch($type) {
case 'ip':
$warning = UserWarning::byRemoteAddressActive($subject);
break;
case 'user':
$warning = UserWarning::byUserIdActive((int)$subject);
break;
}
if($warning === null)
return 404;
$warning->delete();
return 204;
}
}