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feat: 添加会议功能

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kuaifan
2022-06-01 01:48:19 +08:00
parent 24ed87cc82
commit 0f8cfa72b6
13 changed files with 773 additions and 4 deletions
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193
app/Module/AgoraIO/AccessToken.php Normal file
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<?php
/**
* @Description :
*
* @Date : 2019-03-14 13:22
* @Author : hmy940118@gmail.com
*/
namespace App\Module\AgoraIO;
class AccessToken
{
const Privileges = array(
"kJoinChannel" => 1,
"kPublishAudioStream" => 2,
"kPublishVideoStream" => 3,
"kPublishDataStream" => 4,
"kPublishAudioCdn" => 5,
"kPublishVideoCdn" => 6,
"kRequestPublishAudioStream" => 7,
"kRequestPublishVideoStream" => 8,
"kRequestPublishDataStream" => 9,
"kInvitePublishAudioStream" => 10,
"kInvitePublishVideoStream" => 11,
"kInvitePublishDataStream" => 12,
"kAdministrateChannel" => 101
);
public $appID, $appCertificate, $channelName, $uid;
public $message;
/**
* AccessToken constructor.
* @throws \Exception
*/
public function __construct()
{
$this->message = new Message();
}
/**
* @param $uid
*/
public function setUid($uid)
{
if ($uid === 0) {
$this->uid = "";
} else {
$this->uid = $uid . '';
}
}
/**
* @param $name
* @param $str
* @return bool
*/
public function is_nonempty_string($name, $str)
{
if (is_string($str) && $str !== "") {
return true;
}
echo $name . " check failed, should be a non-empty string";
return false;
}
/**
* @param $appID
* @param $appCertificate
* @param $channelName
* @param $uid
* @return AccessToken|null
* @throws \Exception
*/
public static function init($appID, $appCertificate, $channelName, $uid)
{
$accessToken = new AccessToken();
if (!$accessToken->is_nonempty_string("appID", $appID) ||
!$accessToken->is_nonempty_string("appCertificate", $appCertificate) ||
!$accessToken->is_nonempty_string("channelName", $channelName)) {
return null;
}
$accessToken->appID = $appID;
$accessToken->appCertificate = $appCertificate;
$accessToken->channelName = $channelName;
$accessToken->setUid($uid);
$accessToken->message = new Message();
return $accessToken;
}
/**
* @param $token
* @param $appCertificate
* @param $channel
* @param $uid
* @return AccessToken|null
* @throws \Exception
*/
public static function initWithToken($token, $appCertificate, $channel, $uid)
{
$accessToken = new AccessToken();
if (!$accessToken->extract($token, $appCertificate, $channel, $uid)) {
return null;
}
return $accessToken;
}
/**
* @param $key
* @param $expireTimestamp
* @return $this
*/
public function addPrivilege($key, $expireTimestamp)
{
$this->message->privileges[$key] = $expireTimestamp;
return $this;
}
/**
* @param $token
* @param $appCertificate
* @param $channelName
* @param $uid
* @return bool
* @throws \Exception
*/
protected function extract($token, $appCertificate, $channelName, $uid)
{
$ver_len = 3;
$appid_len = 32;
$version = substr($token, 0, $ver_len);
if ($version !== "006") {
echo 'invalid version ' . $version;
return false;
}
if (!$this->is_nonempty_string("token", $token) ||
!$this->is_nonempty_string("appCertificate", $appCertificate) ||
!$this->is_nonempty_string("channelName", $channelName)) {
return false;
}
$appid = substr($token, $ver_len, $appid_len);
$content = (base64_decode(substr($token, $ver_len + $appid_len, strlen($token) - ($ver_len + $appid_len))));
$pos = 0;
$len = unpack("v", $content . substr($pos, 2))[1];
$pos += 2;
$sig = substr($content, $pos, $len);
$pos += $len;
$crc_channel = unpack("V", substr($content, $pos, 4))[1];
$pos += 4;
$crc_uid = unpack("V", substr($content, $pos, 4))[1];
$pos += 4;
$msgLen = unpack("v", substr($content, $pos, 2))[1];
$pos += 2;
$msg = substr($content, $pos, $msgLen);
$this->appID = $appid;
$message = new Message();
$message->unpackContent($msg);
$this->message = $message;
//non reversable values
$this->appCertificate = $appCertificate;
$this->channelName = $channelName;
$this->setUid($uid);
return true;
}
/**
* @return string
*/
public function build()
{
$msg = $this->message->packContent();
$val = array_merge(unpack("C*", $this->appID), unpack("C*", $this->channelName), unpack("C*", $this->uid), $msg);
$sig = hash_hmac('sha256', implode(array_map("chr", $val)), $this->appCertificate, true);
$crc_channel_name = crc32($this->channelName) & 0xffffffff;
$crc_uid = crc32($this->uid) & 0xffffffff;
$content = array_merge(unpack("C*", $this->packString($sig)), unpack("C*", pack("V", $crc_channel_name)), unpack("C*", pack("V", $crc_uid)), unpack("C*", pack("v", count($msg))), $msg);
$version = "006";
$ret = $version . $this->appID . base64_encode(implode(array_map("chr", $content)));
return $ret;
}
/**
* @param $value
* @return string
*/
public function packString($value)
{
return pack("v", strlen($value)) . $value;
}
}

122
app/Module/AgoraIO/AgoraTokenGenerator.php Normal file
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<?php
/**
* @Description :
*
* @Date : 2019-03-14 13:20
* @Author : hmy940118@gmail.com
*/
namespace App\Module\AgoraIO;
class AgoraTokenGenerator
{
const AttendeePrivileges = array(
AccessToken::Privileges["kJoinChannel"] => 0,
AccessToken::Privileges["kPublishAudioStream"] => 0,
AccessToken::Privileges["kPublishVideoStream"] => 0,
AccessToken::Privileges["kPublishDataStream"] => 0
);
const PublisherPrivileges = array(
AccessToken::Privileges["kJoinChannel"] => 0,
AccessToken::Privileges["kPublishAudioStream"] => 0,
AccessToken::Privileges["kPublishVideoStream"] => 0,
AccessToken::Privileges["kPublishDataStream"] => 0,
AccessToken::Privileges["kPublishAudioCdn"] => 0,
AccessToken::Privileges["kPublishVideoCdn"] => 0,
AccessToken::Privileges["kInvitePublishAudioStream"] => 0,
AccessToken::Privileges["kInvitePublishVideoStream"] => 0,
AccessToken::Privileges["kInvitePublishDataStream"] => 0
);
const SubscriberPrivileges = array(
AccessToken::Privileges["kJoinChannel"] => 0,
AccessToken::Privileges["kRequestPublishAudioStream"] => 0,
AccessToken::Privileges["kRequestPublishVideoStream"] => 0,
AccessToken::Privileges["kRequestPublishDataStream"] => 0
);
const AdminPrivileges = array(
AccessToken::Privileges["kJoinChannel"] => 0,
AccessToken::Privileges["kPublishAudioStream"] => 0,
AccessToken::Privileges["kPublishVideoStream"] => 0,
AccessToken::Privileges["kPublishDataStream"] => 0,
AccessToken::Privileges["kAdministrateChannel"] => 0
);
const Role = array(
"kRoleAttendee" => 0, // for communication
"kRolePublisher" => 1, // for live broadcast
"kRoleSubscriber" => 2, // for live broadcast
"kRoleAdmin" => 101
);
const RolePrivileges = array(
self::Role["kRoleAttendee"] => self::AttendeePrivileges,
self::Role["kRolePublisher"] => self::PublisherPrivileges,
self::Role["kRoleSubscriber"] => self::SubscriberPrivileges,
self::Role["kRoleAdmin"] => self::AdminPrivileges
);
public $token;
/**
* AgoraTokenGenerator constructor.
* @param $appID
* @param $appCertificate
* @param $channelName
* @param $uid
* @throws \Exception
*/
public function __construct($appID, $appCertificate, $channelName, $uid){
$this->token = new AccessToken();
$this->token->appID = $appID;
$this->token->appCertificate = $appCertificate;
$this->token->channelName = $channelName;
$this->token->setUid($uid);
}
/**
* @param $token
* @param $appCertificate
* @param $channel
* @param $uid
* @throws \Exception
*/
public function initWithToken($token, $appCertificate, $channel, $uid){
$this->token = AccessToken::initWithToken($token, $appCertificate, $channel, $uid);
}
/**
* @param $role
*/
public function initPrivilege($role){
$p = self::RolePrivileges[$role];
foreach($p as $key => $value){
$this->setPrivilege($key, $value);
}
}
/**
* @param $privilege
* @param $expireTimestamp
*/
public function setPrivilege($privilege, $expireTimestamp){
$this->token->addPrivilege($privilege, $expireTimestamp);
}
/**
* @param $privilege
*/
public function removePrivilege($privilege){
unset($this->token->message->privileges[$privilege]);
}
/**
* @return string
*/
public function buildToken(){
return $this->token->build();
}
}

70
app/Module/AgoraIO/Message.php Normal file
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<?php
/**
* @Description :
*
* @Date : 2019-03-14 13:27
* @Author : hmy940118@gmail.com
*/
namespace App\Module\AgoraIO;
class Message
{
public $salt;
public $ts;
public $privileges;
/**
* Message constructor.
* @throws \Exception
*/
public function __construct()
{
$this->salt = rand(0, 100000);
$date = new \DateTime("now", new \DateTimeZone('UTC'));
$this->ts = $date->getTimestamp() + 168 * 3600; // 7天时间
$this->privileges = array();
}
/**
* @return array
*/
public function packContent()
{
$buffer = unpack("C*", pack("V", $this->salt));
$buffer = array_merge($buffer, unpack("C*", pack("V", $this->ts)));
$buffer = array_merge($buffer, unpack("C*", pack("v", sizeof($this->privileges))));
foreach ($this->privileges as $key => $value) {
$buffer = array_merge($buffer, unpack("C*", pack("v", $key)));
$buffer = array_merge($buffer, unpack("C*", pack("V", $value)));
}
return $buffer;
}
/**
* @param $msg
*/
public function unpackContent($msg)
{
$pos = 0;
$salt = unpack("V", substr($msg, $pos, 4))[1];
$pos += 4;
$ts = unpack("V", substr($msg, $pos, 4))[1];
$pos += 4;
$size = unpack("v", substr($msg, $pos, 2))[1];
$pos += 2;
$privileges = array();
for ($i = 0; $i < $size; $i++) {
$key = unpack("v", substr($msg, $pos, 2));
$pos += 2;
$value = unpack("V", substr($msg, $pos, 4));
$pos += 4;
$privileges[$key[1]] = $value[1];
}
$this->salt = $salt;
$this->ts = $ts;
$this->privileges = $privileges;
}
}