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1 | <?php |
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2 | |||
3 | /* |
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4 | * This file is part of the Pushok package. |
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5 | * |
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6 | * (c) Arthur Edamov <[email protected]> |
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7 | * |
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8 | * For the full copyright and license information, please view the LICENSE |
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9 | * file that was distributed with this source code. |
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10 | */ |
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11 | |||
12 | namespace Pushok\AuthProvider; |
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13 | |||
14 | use Jose\Component\Core\JWK; |
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15 | use Jose\Component\KeyManagement\JWKFactory; |
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16 | use Jose\Component\Core\AlgorithmManager; |
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17 | use Jose\Component\Signature\JWSBuilder; |
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18 | use Jose\Component\Signature\Algorithm\ES512; |
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19 | use Jose\Component\Signature\Serializer\CompactSerializer; |
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20 | use Pushok\AuthProviderInterface; |
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21 | use Pushok\Request; |
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22 | |||
23 | /** |
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24 | * Class Token |
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25 | * @package Pushok\AuthProvider |
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26 | * |
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27 | * @see http://bit.ly/communicating-with-apns |
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28 | */ |
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29 | class Token implements AuthProviderInterface |
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Coding Style
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30 | { |
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31 | /** |
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32 | * Generated auth token. |
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33 | * |
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34 | * @var string |
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35 | */ |
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36 | private $token; |
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37 | |||
38 | /** |
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39 | * Path to p8 private key. |
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40 | * |
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41 | * @var string|null |
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42 | */ |
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43 | private $privateKeyPath; |
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44 | |||
45 | /** |
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46 | * Private key data. |
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47 | * |
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48 | * @var string|null |
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49 | */ |
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50 | private $privateKeyContent; |
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51 | |||
52 | /** |
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53 | * Private key secret. |
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54 | * |
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55 | * @var string|null |
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56 | */ |
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57 | private $privateKeySecret; |
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58 | |||
59 | /** |
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60 | * The Key ID obtained from Apple developer account. |
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61 | * |
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62 | * @var string |
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63 | */ |
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64 | private $keyId; |
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65 | |||
66 | /** |
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67 | * The Team ID obtained from Apple developer account. |
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68 | * |
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69 | * @var string |
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70 | */ |
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71 | private $teamId; |
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72 | |||
73 | /** |
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74 | * The bundle ID for app obtained from Apple developer account. |
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75 | * |
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76 | * @var string |
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77 | */ |
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78 | private $appBundleId; |
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79 | |||
80 | /** |
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81 | * This provider accepts the following options: |
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82 | * |
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83 | * - key_id |
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84 | * - team_id |
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85 | * - app_bundle_id |
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86 | * - private_key_path |
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87 | * - private_key_content |
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88 | * - private_key_secret |
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89 | * |
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90 | * @param array $options |
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91 | */ |
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92 | private function __construct(array $options) |
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93 | { |
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94 | $this->keyId = $options['key_id']; |
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95 | $this->teamId = $options['team_id']; |
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96 | $this->appBundleId = $options['app_bundle_id']; |
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97 | $this->privateKeyPath = $options['private_key_path'] ?? null; |
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98 | $this->privateKeyContent = $options['private_key_content'] ?? null; |
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99 | $this->privateKeySecret = $options['private_key_secret'] ?? null; |
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100 | } |
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101 | |||
102 | /** |
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103 | * Create Token Auth Provider. |
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104 | * |
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105 | * @param array $options |
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106 | * @return Token |
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107 | */ |
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108 | public static function create(array $options): Token |
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109 | { |
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110 | $token = new self($options); |
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111 | $token->token = $token->generate(); |
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112 | |||
113 | return $token; |
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114 | } |
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115 | |||
116 | /** |
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117 | * Use previously generated token. |
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118 | * |
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119 | * @param string $tokenString |
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120 | * @param array $options |
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121 | * @return Token |
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122 | */ |
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123 | public static function useExisting(string $tokenString, array $options): Token |
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124 | { |
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125 | $token = new self($options); |
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126 | $token->token = $tokenString; |
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127 | |||
128 | return $token; |
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129 | } |
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130 | |||
131 | /** |
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132 | * Authenticate client. |
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133 | * |
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134 | * @param Request $request |
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135 | */ |
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136 | public function authenticateClient(Request $request) |
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137 | { |
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138 | $request->addHeaders([ |
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139 | 'apns-topic' => $this->generateApnsTopic($request->getHeaders()['apns-push-type']), |
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140 | 'Authorization' => 'bearer ' . $this->token, |
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141 | ]); |
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142 | } |
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143 | |||
144 | /** |
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145 | * Generate a correct apns-topic string |
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146 | * |
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147 | * @param string $pushType |
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148 | * @return string |
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149 | */ |
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150 | View Code Duplication | public function generateApnsTopic(string $pushType) |
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This method seems to be duplicated in your project.
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository.
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151 | { |
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152 | switch ($pushType) { |
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153 | case 'voip': |
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154 | return $this->appBundleId . '.voip'; |
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155 | |||
156 | case 'complication': |
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157 | return $this->appBundleId . '.complication'; |
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158 | |||
159 | case 'fileprovider': |
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160 | return $this->appBundleId . '.pushkit.fileprovider'; |
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161 | |||
162 | default: |
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163 | return $this->appBundleId; |
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164 | } |
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165 | } |
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166 | |||
167 | /** |
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168 | * Get last generated token. |
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169 | * |
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170 | * @return string |
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171 | */ |
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172 | public function get(): string |
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173 | { |
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174 | return $this->token; |
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175 | } |
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176 | |||
177 | /** |
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178 | * Generate private EC key. |
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179 | * |
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180 | * @return JWK |
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181 | */ |
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182 | private function generatePrivateECKey(): JWK |
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183 | { |
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184 | if ($this->privateKeyContent) { |
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0 ignored issues
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The expression
$this->privateKeyContent of type string|null is loosely compared to true ; this is ambiguous if the string can be empty. You might want to explicitly use !== null instead.
In PHP, under loose comparison (like For '' == false // true
'' == null // true
'ab' == false // false
'ab' == null // false
// It is often better to use strict comparison
'' === false // false
'' === null // false
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185 | $content = $this->privateKeyContent; |
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186 | } elseif ($this->privateKeyPath) { |
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0 ignored issues
–
show
The expression
$this->privateKeyPath of type string|null is loosely compared to true ; this is ambiguous if the string can be empty. You might want to explicitly use !== null instead.
In PHP, under loose comparison (like For '' == false // true
'' == null // true
'ab' == false // false
'ab' == null // false
// It is often better to use strict comparison
'' === false // false
'' === null // false
Loading history...
|
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187 | $content = \file_get_contents($this->privateKeyPath); |
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188 | } else { |
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189 | throw new \InvalidArgumentException('Unable to find private key.'); |
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190 | } |
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191 | |||
192 | return JWKFactory::createFromKey($content, $this->privateKeySecret, [ |
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193 | 'kid' => $this->keyId, |
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194 | 'alg' => 'ES512', |
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195 | 'use' => 'sig' |
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196 | ]); |
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197 | } |
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198 | |||
199 | /** |
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200 | * Get claims payload. |
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201 | * |
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202 | * @return array |
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203 | */ |
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204 | private function getClaimsPayload(): array |
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205 | { |
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206 | return [ |
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207 | 'iss' => $this->teamId, |
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208 | 'iat' => time(), |
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209 | ]; |
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210 | } |
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211 | |||
212 | /** |
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213 | * Get protected header. |
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214 | * |
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215 | * @param JWK $privateECKey |
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216 | * @return array |
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217 | */ |
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218 | private function getProtectedHeader(JWK $privateECKey): array |
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219 | { |
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220 | return [ |
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221 | 'alg' => 'ES512', |
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222 | 'kid' => $privateECKey->get('kid'), |
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223 | ]; |
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224 | } |
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225 | |||
226 | /** |
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227 | * Generate new token. |
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228 | * |
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229 | * @return string |
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230 | */ |
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231 | private function generate(): string |
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232 | { |
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233 | $algorithmManager = new AlgorithmManager([ |
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234 | new ES512(), |
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235 | ]); |
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236 | |||
237 | $jwsBuilder = new JWSBuilder($algorithmManager); |
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238 | $payload = json_encode($this->getClaimsPayload(), JSON_UNESCAPED_SLASHES | JSON_UNESCAPED_UNICODE); |
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239 | |||
240 | $privateECKey = $this->generatePrivateECKey(); |
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241 | |||
242 | $jws = $jwsBuilder |
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243 | ->create() |
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244 | ->withPayload($payload) |
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245 | ->addSignature($privateECKey, $this->getProtectedHeader($privateECKey)) |
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246 | ->build(); |
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247 | |||
248 | $serializer = new CompactSerializer(); |
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249 | $this->token = $serializer->serialize($jws); |
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250 | |||
251 | return $this->token; |
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252 | } |
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253 | } |
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254 |