Total Complexity | 88 |
Total Lines | 786 |
Duplicated Lines | 0 % |
Changes | 0 |
Complex classes like Connection often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Connection, and based on these observations, apply Extract Interface, too.
1 | <?php |
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19 | class Connection |
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20 | { |
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21 | |||
22 | /** |
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23 | * Limit of calls per minute. |
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24 | */ |
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25 | const CALLS_LIMIT_PER_MINUTE = 60; |
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26 | |||
27 | /** |
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28 | * @var string |
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29 | */ |
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30 | private $baseUrl = 'https://start.exactonline.nl'; |
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31 | |||
32 | /** |
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33 | * @var string |
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34 | */ |
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35 | private $apiUrl = '/api/v1'; |
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36 | |||
37 | /** |
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38 | * @var string |
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39 | */ |
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40 | private $authUrl = '/api/oauth2/auth'; |
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41 | |||
42 | /** |
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43 | * @var string |
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44 | */ |
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45 | private $tokenUrl = '/api/oauth2/token'; |
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46 | |||
47 | /** |
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48 | * @var mixed |
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49 | */ |
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50 | private $exactClientId; |
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51 | |||
52 | /** |
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53 | * @var mixed |
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54 | */ |
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55 | private $exactClientSecret; |
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56 | |||
57 | /** |
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58 | * @var mixed |
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59 | */ |
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60 | private $authorizationCode; |
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61 | |||
62 | /** |
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63 | * @var mixed |
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64 | */ |
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65 | private $accessToken; |
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66 | |||
67 | /** |
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68 | * @var int The Unix timestamp at which the access token expires. |
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69 | */ |
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70 | private $tokenExpires; |
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71 | |||
72 | /** |
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73 | * @var mixed |
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74 | */ |
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75 | private $refreshToken; |
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76 | |||
77 | /** |
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78 | * @var bool Pauses a request to make sure the calls per minute restriction is respected. |
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79 | */ |
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80 | private $pauseForMinuteLimit = false; |
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81 | |||
82 | /** |
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83 | * @var bool Pauses a request to make sure the calls are not made during maintenance. |
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84 | */ |
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85 | private $pauseForMaintenance = false; |
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86 | |||
87 | /** |
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88 | * @var int |
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89 | */ |
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90 | private $callsLimit = self::CALLS_LIMIT_PER_MINUTE; |
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91 | |||
92 | /** |
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93 | * @var int |
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94 | */ |
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95 | private $callsLeft = self::CALLS_LIMIT_PER_MINUTE; |
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96 | |||
97 | /** |
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98 | * @var array Start time of the maintenance in array format [H, m, i]. |
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99 | */ |
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100 | private $startMaintenance = [4, 0, 0]; |
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101 | |||
102 | /** |
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103 | * @var array End time of the maintenance in array format [H, m, i]. |
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104 | */ |
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105 | private $endMaintenance = [4, 30, 0]; |
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106 | |||
107 | /** |
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108 | * @var mixed |
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109 | */ |
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110 | private $redirectUrl; |
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111 | |||
112 | /** |
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113 | * @var mixed |
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114 | */ |
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115 | private $division; |
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116 | |||
117 | /** |
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118 | * @var Client|null |
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119 | */ |
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120 | private $client; |
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121 | |||
122 | /** |
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123 | * @var callable(Connection) |
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124 | */ |
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125 | private $tokenUpdateCallback; |
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126 | |||
127 | /** |
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128 | * @var callable(Connection) |
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129 | */ |
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130 | private $acquireAccessTokenLockCallback; |
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131 | |||
132 | /** |
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133 | * @var callable(Connection) |
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134 | */ |
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135 | private $acquireAccessTokenUnlockCallback; |
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136 | |||
137 | /** |
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138 | * @var callable[] |
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139 | */ |
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140 | protected $middleWares = []; |
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141 | |||
142 | /** |
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143 | * @var string|null |
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144 | */ |
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145 | public $nextUrl = null; |
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146 | |||
147 | /** |
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148 | * @return Client |
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149 | */ |
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150 | private function client() |
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151 | { |
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152 | if ($this->client) { |
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153 | return $this->client; |
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154 | } |
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155 | |||
156 | $handlerStack = HandlerStack::create(); |
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157 | foreach ($this->middleWares as $middleWare) { |
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158 | $handlerStack->push($middleWare); |
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159 | } |
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160 | |||
161 | $this->client = new Client([ |
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162 | 'http_errors' => true, |
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163 | 'handler' => $handlerStack, |
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164 | 'expect' => false, |
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165 | ]); |
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166 | |||
167 | return $this->client; |
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168 | } |
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169 | |||
170 | public function insertMiddleWare($middleWare) |
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171 | { |
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172 | $this->middleWares[] = $middleWare; |
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173 | } |
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174 | |||
175 | public function connect() |
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176 | { |
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177 | // Redirect for authorization if needed (no access token or refresh token given) |
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178 | if ($this->needsAuthentication()) { |
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179 | $this->redirectForAuthorization(); |
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180 | } |
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181 | |||
182 | // If access token is not set or token has expired, acquire new token |
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183 | if (empty($this->accessToken) || $this->tokenHasExpired()) { |
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184 | $this->acquireAccessToken(); |
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185 | } |
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186 | |||
187 | $client = $this->client(); |
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188 | |||
189 | return $client; |
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190 | } |
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191 | |||
192 | /** |
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193 | * @return bool |
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194 | */ |
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195 | public function pauseForMinuteLimitEnabled() |
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196 | { |
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197 | return $this->pauseForMinuteLimit; |
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198 | } |
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199 | |||
200 | /** |
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201 | * @return self |
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202 | */ |
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203 | public function enablePauseForMinuteLimit() |
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207 | } |
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208 | |||
209 | /** |
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210 | * @return self |
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211 | */ |
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212 | public function disablePauseForMinuteLimit() |
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213 | { |
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214 | $this->pauseForMinuteLimit = true; |
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215 | return $this; |
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216 | } |
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217 | |||
218 | /** |
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219 | * @return bool |
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220 | */ |
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221 | public function pauseForMaintenanceEnabled() |
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222 | { |
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223 | return $this->pauseForMaintenance; |
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224 | } |
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225 | |||
226 | /** |
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227 | * @return self |
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228 | */ |
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229 | public function enablePauseForMaintenance() |
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230 | { |
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231 | $this->pauseForMaintenance = true; |
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232 | return $this; |
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233 | } |
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234 | |||
235 | /** |
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236 | * @return self |
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237 | */ |
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238 | public function disablePauseForMaintenance() |
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239 | { |
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240 | $this->pauseForMaintenance = false; |
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241 | return $this; |
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242 | } |
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243 | |||
244 | /** |
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245 | * Pauses the process until time limit is over |
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246 | */ |
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247 | private function pause() |
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248 | { |
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249 | if ($this->pauseForMinuteLimitEnabled()) { |
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250 | // take 90% of callsLimit so we have some tolerance when multiple process are running |
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251 | if($this->callsLeft <= ($this->callsLimit * 0.10)) { |
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252 | sleep(60); |
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253 | } |
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254 | } |
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255 | |||
256 | if ($this->pauseForMaintenanceEnabled()) { |
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257 | $startMaintenance = mktime( |
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258 | $this->startMaintenance[0], |
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259 | $this->startMaintenance[1], |
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260 | $this->startMaintenance[2] |
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261 | ); |
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262 | |||
263 | $endMaintenance = mktime( |
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264 | $this->endMaintenance[0], |
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265 | $this->endMaintenance[1], |
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266 | $this->endMaintenance[2] |
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267 | ); |
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268 | |||
269 | $now = time(); |
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270 | if ($now >= $startMaintenance && $now <= $endMaintenance) { |
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271 | sleep($endMaintenance - $now); |
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272 | } |
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273 | } |
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274 | } |
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275 | |||
276 | /** |
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277 | * @param string $method |
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278 | * @param string $endpoint |
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279 | * @param mixed $body |
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280 | * @param array $params |
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281 | * @param array $headers |
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282 | * @return Request |
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283 | */ |
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284 | private function createRequest($method = 'GET', $endpoint, $body = null, array $params = [], array $headers = []) |
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285 | { |
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286 | // Add default json headers to the request |
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287 | $headers = array_merge($headers, [ |
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288 | 'Accept' => 'application/json', |
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289 | 'Content-Type' => 'application/json', |
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290 | 'Prefer' => 'return=representation' |
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291 | ]); |
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292 | |||
293 | // If access token is not set or token has expired, acquire new token |
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294 | if (empty($this->accessToken) || $this->tokenHasExpired()) { |
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295 | $this->acquireAccessToken(); |
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296 | } |
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297 | |||
298 | // If we have a token, sign the request |
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299 | if (!$this->needsAuthentication() && !empty($this->accessToken)) { |
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300 | $headers['Authorization'] = 'Bearer ' . $this->accessToken; |
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301 | } |
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302 | |||
303 | // Create param string |
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304 | if (!empty($params)) { |
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305 | $endpoint .= '?' . http_build_query($params); |
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306 | } |
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307 | |||
308 | // Create the request |
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309 | $request = new Request($method, $endpoint, $headers, $body); |
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310 | |||
311 | return $request; |
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312 | } |
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313 | |||
314 | /** |
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315 | * @param $url |
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316 | * @param array $params |
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317 | * @param array $headers |
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318 | * |
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319 | * @return mixed|null |
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320 | * @throws \GuzzleHttp\Exception\GuzzleException |
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321 | * @throws \Picqer\Financials\Exact\ApiException |
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322 | */ |
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323 | public function get($url, array $params = [], array $headers = []) |
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324 | { |
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325 | $url = $this->formatUrl($url, $url !== 'current/Me', $url == $this->nextUrl); |
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326 | |||
327 | $this->pause(); |
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328 | |||
329 | try { |
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330 | $request = $this->createRequest('GET', $url, null, $params, $headers); |
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331 | $response = $this->client()->send($request); |
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332 | |||
333 | return $this->parseResponse($response, $url != $this->nextUrl); |
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334 | } catch (Exception $e) { |
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335 | $this->parseExceptionForErrorMessages($e); |
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336 | } |
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337 | |||
338 | return null; |
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339 | } |
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340 | |||
341 | /** |
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342 | * @param $url |
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343 | * @param $body |
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344 | * |
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345 | * @return mixed|null |
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346 | * @throws \GuzzleHttp\Exception\GuzzleException |
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347 | * @throws \Picqer\Financials\Exact\ApiException |
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348 | */ |
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349 | public function post($url, $body) |
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350 | { |
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351 | $url = $this->formatUrl($url); |
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352 | |||
353 | $this->pause(); |
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354 | |||
355 | try { |
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356 | $request = $this->createRequest('POST', $url, $body); |
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357 | $response = $this->client()->send($request); |
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358 | |||
359 | return $this->parseResponse($response); |
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360 | } catch (Exception $e) { |
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361 | $this->parseExceptionForErrorMessages($e); |
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362 | } |
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363 | |||
364 | return null; |
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365 | } |
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366 | |||
367 | /** |
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368 | * @param $url |
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369 | * @param $body |
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370 | * |
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371 | * @return mixed|null |
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372 | * @throws \GuzzleHttp\Exception\GuzzleException |
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373 | * @throws \Picqer\Financials\Exact\ApiException |
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374 | */ |
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375 | public function put($url, $body) |
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376 | { |
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377 | $url = $this->formatUrl($url); |
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378 | |||
379 | $this->pause(); |
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380 | |||
381 | try { |
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382 | $request = $this->createRequest('PUT', $url, $body); |
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383 | $response = $this->client()->send($request); |
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384 | |||
385 | return $this->parseResponse($response); |
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386 | } catch (Exception $e) { |
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387 | $this->parseExceptionForErrorMessages($e); |
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388 | } |
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389 | |||
390 | return null; |
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391 | } |
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392 | |||
393 | /** |
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394 | * @param $url |
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395 | * |
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396 | * @return mixed|null |
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397 | * @throws \GuzzleHttp\Exception\GuzzleException |
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398 | * @throws \Picqer\Financials\Exact\ApiException |
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399 | */ |
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400 | public function delete($url) |
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401 | { |
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402 | $url = $this->formatUrl($url); |
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403 | |||
404 | $this->pause(); |
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405 | |||
406 | try { |
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407 | $request = $this->createRequest('DELETE', $url); |
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408 | $response = $this->client()->send($request); |
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409 | |||
410 | return $this->parseResponse($response); |
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411 | } catch (Exception $e) { |
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412 | $this->parseExceptionForErrorMessages($e); |
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413 | } |
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414 | |||
415 | return null; |
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416 | } |
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417 | |||
418 | /** |
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419 | * @return string |
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420 | */ |
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421 | public function getAuthUrl() |
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422 | { |
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423 | return $this->baseUrl . $this->authUrl . '?' . http_build_query(array( |
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424 | 'client_id' => $this->exactClientId, |
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425 | 'redirect_uri' => $this->redirectUrl, |
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426 | 'response_type' => 'code' |
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427 | )); |
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428 | } |
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429 | |||
430 | /** |
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431 | * @param mixed $exactClientId |
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432 | */ |
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433 | public function setExactClientId($exactClientId) |
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434 | { |
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435 | $this->exactClientId = $exactClientId; |
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436 | } |
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437 | |||
438 | /** |
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439 | * @param mixed $exactClientSecret |
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440 | */ |
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441 | public function setExactClientSecret($exactClientSecret) |
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442 | { |
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443 | $this->exactClientSecret = $exactClientSecret; |
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444 | } |
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445 | |||
446 | /** |
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447 | * @param mixed $authorizationCode |
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448 | */ |
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449 | public function setAuthorizationCode($authorizationCode) |
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450 | { |
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451 | $this->authorizationCode = $authorizationCode; |
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452 | } |
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453 | |||
454 | /** |
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455 | * @param mixed $accessToken |
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456 | */ |
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457 | public function setAccessToken($accessToken) |
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458 | { |
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459 | $this->accessToken = $accessToken; |
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460 | } |
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461 | |||
462 | /** |
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463 | * @param mixed $refreshToken |
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464 | */ |
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465 | public function setRefreshToken($refreshToken) |
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466 | { |
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467 | $this->refreshToken = $refreshToken; |
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468 | } |
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469 | |||
470 | /** |
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471 | * |
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472 | */ |
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473 | public function redirectForAuthorization() |
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474 | { |
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475 | $authUrl = $this->getAuthUrl(); |
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476 | header('Location: ' . $authUrl); |
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477 | exit; |
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478 | } |
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479 | |||
480 | /** |
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481 | * @param mixed $redirectUrl |
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482 | */ |
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483 | public function setRedirectUrl($redirectUrl) |
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484 | { |
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485 | $this->redirectUrl = $redirectUrl; |
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486 | } |
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487 | |||
488 | /** |
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489 | * @return bool |
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490 | */ |
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491 | public function needsAuthentication() |
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492 | { |
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493 | return empty($this->refreshToken) && empty($this->authorizationCode); |
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494 | } |
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495 | |||
496 | /** |
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497 | * @param Response $response |
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498 | * @param bool $returnSingleIfPossible |
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499 | * @return mixed |
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500 | * @throws ApiException |
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501 | */ |
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502 | private function parseResponse(Response $response, $returnSingleIfPossible = true) |
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503 | { |
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504 | try { |
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505 | $this->callsLimit = (int) $response->getHeaderLine('X-RateLimit-Minutely-Limit'); |
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506 | $this->callsLeft = (int) $response->getHeaderLine('X-RateLimit-Minutely-Remaining'); |
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507 | |||
508 | $this->pause(); |
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509 | |||
510 | if ($response->getStatusCode() === 204) { |
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511 | return []; |
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512 | } |
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513 | |||
514 | Psr7\rewind_body($response); |
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515 | $json = json_decode($response->getBody()->getContents(), true); |
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516 | if (array_key_exists('d', $json)) { |
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517 | if (array_key_exists('__next', $json['d'])) { |
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518 | $this->nextUrl = $json['d']['__next']; |
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519 | } |
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520 | else { |
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521 | $this->nextUrl = null; |
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522 | } |
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523 | |||
524 | if (array_key_exists('results', $json['d'])) { |
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525 | if ($returnSingleIfPossible && count($json['d']['results']) == 1) { |
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526 | return $json['d']['results'][0]; |
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527 | } |
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528 | |||
529 | return $json['d']['results']; |
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530 | } |
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531 | |||
532 | return $json['d']; |
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533 | } |
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534 | |||
535 | return $json; |
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536 | } catch (\RuntimeException $e) { |
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537 | throw new ApiException($e->getMessage()); |
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538 | } |
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539 | } |
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540 | |||
541 | /** |
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542 | * @return mixed |
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543 | */ |
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544 | private function getCurrentDivisionNumber() |
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545 | { |
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546 | if (empty($this->division)) { |
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547 | $me = new Me($this); |
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548 | $this->division = $me->find()->CurrentDivision; |
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549 | } |
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550 | |||
551 | return $this->division; |
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552 | } |
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553 | |||
554 | /** |
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555 | * @return mixed |
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556 | */ |
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557 | public function getRefreshToken() |
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558 | { |
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559 | return $this->refreshToken; |
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560 | } |
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561 | |||
562 | /** |
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563 | * @return mixed |
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564 | */ |
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565 | public function getAccessToken() |
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566 | { |
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567 | return $this->accessToken; |
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568 | } |
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569 | |||
570 | private function acquireAccessToken() |
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571 | { |
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572 | // If refresh token not yet acquired, do token request |
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573 | if (empty($this->refreshToken)) { |
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574 | $body = [ |
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575 | 'form_params' => [ |
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576 | 'redirect_uri' => $this->redirectUrl, |
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577 | 'grant_type' => 'authorization_code', |
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578 | 'client_id' => $this->exactClientId, |
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579 | 'client_secret' => $this->exactClientSecret, |
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580 | 'code' => $this->authorizationCode |
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581 | ] |
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582 | ]; |
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583 | } else { // else do refresh token request |
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584 | $body = [ |
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585 | 'form_params' => [ |
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586 | 'refresh_token' => $this->refreshToken, |
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587 | 'grant_type' => 'refresh_token', |
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588 | 'client_id' => $this->exactClientId, |
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589 | 'client_secret' => $this->exactClientSecret, |
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590 | ] |
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591 | ]; |
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592 | } |
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593 | |||
594 | |||
595 | try { |
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596 | if (is_callable($this->acquireAccessTokenLockCallback)) { |
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597 | call_user_func($this->acquireAccessTokenLockCallback, $this); |
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598 | } |
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599 | |||
600 | $response = $this->client()->post($this->getTokenUrl(), $body); |
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601 | |||
602 | Psr7\rewind_body($response); |
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603 | $body = json_decode($response->getBody()->getContents(), true); |
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604 | |||
605 | if (json_last_error() === JSON_ERROR_NONE) { |
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606 | $this->accessToken = $body['access_token']; |
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607 | $this->refreshToken = $body['refresh_token']; |
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608 | $this->tokenExpires = $this->getTimestampFromExpiresIn($body['expires_in']); |
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609 | |||
610 | if (is_callable($this->tokenUpdateCallback)) { |
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611 | call_user_func($this->tokenUpdateCallback, $this); |
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612 | } |
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613 | } else { |
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614 | throw new ApiException('Could not acquire tokens, json decode failed. Got response: ' . $response->getBody()->getContents()); |
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615 | } |
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616 | } catch (BadResponseException $ex) { |
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617 | throw new ApiException('Could not acquire or refresh tokens [http ' . $ex->getResponse()->getStatusCode() . ']', 0, $ex); |
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618 | } finally { |
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619 | if (is_callable($this->acquireAccessTokenUnlockCallback)) { |
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620 | call_user_func($this->acquireAccessTokenUnlockCallback, $this); |
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621 | } |
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622 | } |
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623 | } |
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624 | |||
625 | /** |
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626 | * Translates expires_in to a Unix timestamp. |
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627 | * @param string $expiresIn Number of seconds until the token expires. |
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628 | * @return int |
||
629 | */ |
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630 | private function getTimestampFromExpiresIn($expiresIn) |
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631 | { |
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632 | if (!ctype_digit($expiresIn)) { |
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633 | throw new \InvalidArgumentException('Function requires a numeric expires value'); |
||
634 | } |
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635 | |||
636 | return time() + $expiresIn; |
||
637 | } |
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638 | |||
639 | /** |
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640 | * @return int The Unix timestamp at which the access token expires. |
||
641 | */ |
||
642 | public function getTokenExpires() |
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643 | { |
||
644 | return $this->tokenExpires; |
||
645 | } |
||
646 | |||
647 | /** |
||
648 | * @param int $tokenExpires The Unix timestamp at which the access token expires. |
||
649 | */ |
||
650 | public function setTokenExpires($tokenExpires) |
||
651 | { |
||
652 | $this->tokenExpires = $tokenExpires; |
||
653 | } |
||
654 | |||
655 | private function tokenHasExpired() |
||
656 | { |
||
657 | if (empty($this->tokenExpires)) { |
||
658 | return true; |
||
659 | } |
||
660 | |||
661 | return $this->tokenExpires <= time() + 10; |
||
662 | } |
||
663 | |||
664 | private function formatUrl($endPoint, $includeDivision = true, $formatNextUrl = false) |
||
665 | { |
||
666 | if ($formatNextUrl) { |
||
667 | return $endPoint; |
||
668 | } |
||
669 | |||
670 | if ($includeDivision) { |
||
671 | return implode('/', [ |
||
672 | $this->getApiUrl(), |
||
673 | $this->getCurrentDivisionNumber(), |
||
674 | $endPoint |
||
675 | ]); |
||
676 | } |
||
677 | |||
678 | return implode('/', [ |
||
679 | $this->getApiUrl(), |
||
680 | $endPoint |
||
681 | ]); |
||
682 | } |
||
683 | |||
684 | |||
685 | /** |
||
686 | * @return mixed |
||
687 | */ |
||
688 | public function getDivision() |
||
689 | { |
||
690 | return $this->division; |
||
691 | } |
||
692 | |||
693 | |||
694 | /** |
||
695 | * @param mixed $division |
||
696 | */ |
||
697 | public function setDivision($division) |
||
698 | { |
||
699 | $this->division = $division; |
||
700 | } |
||
701 | |||
702 | /** |
||
703 | * @param callable $callback |
||
704 | */ |
||
705 | public function setAcquireAccessTokenLockCallback($callback) { |
||
706 | $this->acquireAccessTokenLockCallback = $callback; |
||
707 | } |
||
708 | |||
709 | /** |
||
710 | * @param callable $callback |
||
711 | */ |
||
712 | public function setAcquireAccessTokenUnlockCallback($callback) { |
||
713 | $this->acquireAccessTokenUnlockCallback = $callback; |
||
714 | } |
||
715 | |||
716 | /** |
||
717 | * @param callable $callback |
||
718 | */ |
||
719 | public function setTokenUpdateCallback($callback) { |
||
720 | $this->tokenUpdateCallback = $callback; |
||
721 | } |
||
722 | |||
723 | /** |
||
724 | * Parse the reponse in the Exception to return the Exact error messages |
||
725 | * @param Exception $e |
||
726 | * @throws ApiException |
||
727 | */ |
||
728 | private function parseExceptionForErrorMessages(Exception $e) |
||
729 | { |
||
730 | if (! $e instanceof BadResponseException) { |
||
731 | throw new ApiException($e->getMessage()); |
||
732 | } |
||
733 | |||
734 | $response = $e->getResponse(); |
||
735 | Psr7\rewind_body($response); |
||
736 | $responseBody = $response->getBody()->getContents(); |
||
737 | $decodedResponseBody = json_decode($responseBody, true); |
||
738 | |||
739 | if (! is_null($decodedResponseBody) && isset($decodedResponseBody['error']['message']['value'])) { |
||
740 | $errorMessage = $decodedResponseBody['error']['message']['value']; |
||
741 | } else { |
||
742 | $errorMessage = $responseBody; |
||
743 | } |
||
744 | |||
745 | throw new ApiException('Error ' . $response->getStatusCode() .': ' . $errorMessage); |
||
746 | } |
||
747 | |||
748 | /** |
||
749 | * @return string |
||
750 | */ |
||
751 | protected function getBaseUrl() |
||
752 | { |
||
753 | return $this->baseUrl; |
||
754 | } |
||
755 | |||
756 | /** |
||
757 | * @return string |
||
758 | */ |
||
759 | private function getApiUrl() |
||
760 | { |
||
761 | return $this->baseUrl . $this->apiUrl; |
||
762 | } |
||
763 | |||
764 | /** |
||
765 | * @return string |
||
766 | */ |
||
767 | private function getTokenUrl() |
||
768 | { |
||
769 | return $this->baseUrl . $this->tokenUrl; |
||
770 | } |
||
771 | |||
772 | /** |
||
773 | * Set base URL for different countries according to |
||
774 | * https://developers.exactonline.com/#Exact%20Online%20sites.html |
||
775 | * |
||
776 | * @param string $baseUrl |
||
777 | */ |
||
778 | public function setBaseUrl($baseUrl) |
||
781 | } |
||
782 | |||
783 | /** |
||
784 | * @param string $apiUrl |
||
785 | */ |
||
786 | public function setApiUrl($apiUrl) |
||
787 | { |
||
788 | $this->apiUrl = $apiUrl; |
||
789 | } |
||
790 | |||
791 | /** |
||
792 | * @param string $authUrl |
||
793 | */ |
||
794 | public function setAuthUrl($authUrl) |
||
795 | { |
||
796 | $this->authUrl = $authUrl; |
||
797 | } |
||
798 | |||
799 | /** |
||
800 | * @param string $tokenUrl |
||
801 | */ |
||
802 | public function setTokenUrl($tokenUrl) |
||
803 | { |
||
804 | $this->tokenUrl = $tokenUrl; |
||
805 | } |
||
806 | } |
||
807 |