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1 | <?php |
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2 | |||
3 | namespace RouterOS; |
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4 | |||
5 | use DivineOmega\SSHConnection\SSHConnection; |
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6 | use RouterOS\Exceptions\ClientException; |
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7 | use RouterOS\Exceptions\ConfigException; |
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8 | use RouterOS\Interfaces\ClientInterface; |
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9 | use RouterOS\Interfaces\QueryInterface; |
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10 | use RouterOS\Helpers\ArrayHelper; |
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11 | use function array_keys; |
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12 | use function array_shift; |
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13 | use function chr; |
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14 | use function count; |
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15 | use function is_array; |
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16 | use function md5; |
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17 | use function pack; |
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18 | use function preg_match_all; |
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19 | use function sleep; |
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20 | use function trim; |
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21 | |||
22 | /** |
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23 | * Class Client for RouterOS management |
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24 | * |
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25 | * @package RouterOS |
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26 | * @since 0.1 |
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27 | */ |
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28 | class Client implements Interfaces\ClientInterface |
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29 | { |
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30 | use SocketTrait, ShortsTrait; |
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31 | |||
32 | /** |
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33 | * Configuration of connection |
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34 | * |
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35 | * @var \RouterOS\Config |
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36 | */ |
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37 | private $config; |
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38 | |||
39 | /** |
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40 | * API communication object |
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41 | * |
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42 | * @var \RouterOS\APIConnector |
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43 | */ |
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44 | private $connector; |
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45 | |||
46 | /** |
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47 | * Some strings with custom output |
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48 | * |
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49 | * @var string |
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50 | */ |
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51 | private $customOutput; |
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52 | |||
53 | /** |
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54 | * Client constructor. |
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55 | * |
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56 | * @param array|\RouterOS\Interfaces\ConfigInterface $config Array with configuration or Config object |
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57 | * @param bool $autoConnect If false it will skip auto-connect stage if not need to instantiate connection |
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58 | * |
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59 | * @throws \RouterOS\Exceptions\ClientException |
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60 | * @throws \RouterOS\Exceptions\ConfigException |
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61 | * @throws \RouterOS\Exceptions\QueryException |
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62 | */ |
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63 | 27 | public function __construct($config, bool $autoConnect = true) |
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64 | { |
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65 | // If array then need create object |
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66 | 27 | if (is_array($config)) { |
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67 | 26 | $config = new Config($config); |
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68 | } |
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69 | |||
70 | // Check for important keys |
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71 | 27 | if (true !== $key = ArrayHelper::checkIfKeysNotExist(['host', 'user', 'pass'], $config->getParameters())) { |
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72 | 1 | throw new ConfigException("One or few parameters '$key' of Config is not set or empty"); |
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73 | } |
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74 | |||
75 | // Save config if everything is okay |
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76 | 27 | $this->config = $config; |
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77 | |||
78 | // Skip next step if not need to instantiate connection |
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79 | 27 | if (false === $autoConnect) { |
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80 | 1 | return; |
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81 | } |
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82 | |||
83 | // Throw error if cannot to connect |
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84 | 26 | if (false === $this->connect()) { |
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85 | 1 | throw new ClientException('Unable to connect to ' . $config->get('host') . ':' . $config->get('port')); |
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86 | } |
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87 | 26 | } |
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88 | |||
89 | /** |
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90 | * Get some parameter from config |
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91 | * |
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92 | * @param string $parameter Name of required parameter |
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93 | * |
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94 | * @return mixed |
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95 | * @throws \RouterOS\Exceptions\ConfigException |
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96 | */ |
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97 | 26 | private function config(string $parameter) |
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98 | { |
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99 | 26 | return $this->config->get($parameter); |
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100 | } |
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101 | |||
102 | /** |
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103 | * Send write query to RouterOS (modern version of write) |
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104 | * |
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105 | * @param array|string|\RouterOS\Interfaces\QueryInterface $endpoint Path of API query or Query object |
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106 | * @param array|null $where List of where filters |
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107 | * @param string|null $operations Some operations which need make on response |
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108 | * @param string|null $tag Mark query with tag |
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109 | * |
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110 | * @return \RouterOS\Interfaces\ClientInterface |
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111 | * @throws \RouterOS\Exceptions\QueryException |
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112 | * @throws \RouterOS\Exceptions\ClientException |
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113 | * @throws \RouterOS\Exceptions\ConfigException |
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114 | * @since 1.0.0 |
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115 | */ |
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116 | 26 | public function query($endpoint, array $where = null, string $operations = null, string $tag = null): ClientInterface |
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117 | { |
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118 | // If endpoint is string then build Query object |
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119 | 26 | $query = ($endpoint instanceof Query) |
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120 | 26 | ? $endpoint |
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121 | 26 | : new Query($endpoint); |
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122 | |||
123 | // Parse where array |
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124 | 26 | if (!empty($where)) { |
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125 | |||
126 | // If array is multidimensional, then parse each line |
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127 | 6 | if (is_array($where[0])) { |
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128 | 5 | foreach ($where as $item) { |
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129 | 5 | $query = $this->preQuery($item, $query); |
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130 | } |
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131 | } else { |
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132 | 2 | $query = $this->preQuery($where, $query); |
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133 | } |
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134 | |||
135 | } |
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136 | |||
137 | // Append operations if set |
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138 | 26 | if (!empty($operations)) { |
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139 | 1 | $query->operations($operations); |
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140 | } |
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141 | |||
142 | // Append tag if set |
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143 | 26 | if (!empty($tag)) { |
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144 | 1 | $query->tag($tag); |
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145 | } |
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146 | |||
147 | // Submit query to RouterOS |
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148 | 26 | return $this->writeRAW($query); |
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149 | } |
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150 | |||
151 | /** |
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152 | * Query helper |
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153 | * |
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154 | * @param array $item |
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155 | * @param \RouterOS\Interfaces\QueryInterface $query |
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156 | * |
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157 | * @return \RouterOS\Query |
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158 | * @throws \RouterOS\Exceptions\QueryException |
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159 | * @throws \RouterOS\Exceptions\ClientException |
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160 | */ |
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161 | 6 | private function preQuery(array $item, QueryInterface $query): QueryInterface |
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162 | { |
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163 | // Null by default |
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164 | 6 | $key = null; |
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165 | 6 | $operator = null; |
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166 | 6 | $value = null; |
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167 | |||
168 | 6 | switch (count($item)) { |
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169 | 6 | case 1: |
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170 | 1 | [$key] = $item; |
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171 | 1 | break; |
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172 | 6 | case 2: |
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173 | 1 | [$key, $operator] = $item; |
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174 | 1 | break; |
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175 | 6 | case 3: |
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176 | 1 | [$key, $operator, $value] = $item; |
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177 | 1 | break; |
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178 | default: |
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179 | 5 | throw new ClientException('From 1 to 3 parameters of "where" condition is allowed'); |
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180 | } |
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181 | |||
182 | 1 | return $query->where($key, $operator, $value); |
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183 | } |
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184 | |||
185 | /** |
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186 | * Send write query object to RouterOS |
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187 | * |
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188 | * @param \RouterOS\Interfaces\QueryInterface $query |
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189 | * |
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190 | * @return \RouterOS\Interfaces\ClientInterface |
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191 | * @throws \RouterOS\Exceptions\QueryException |
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192 | * @throws \RouterOS\Exceptions\ConfigException |
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193 | * @since 1.0.0 |
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194 | */ |
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195 | 26 | private function writeRAW(QueryInterface $query): ClientInterface |
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196 | { |
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197 | 26 | $commands = $query->getQuery(); |
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198 | |||
199 | // Check if first command is export |
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200 | 26 | if (0 === strpos($commands[0], '/export')) { |
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201 | |||
202 | // Convert export command with all arguments to valid SSH command |
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203 | $arguments = explode('/', $commands[0]); |
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204 | unset($arguments[1]); |
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205 | $arguments = implode(' ', $arguments); |
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206 | |||
207 | // Call the router via ssh and store output of export |
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208 | $this->customOutput = $this->export($arguments); |
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209 | |||
210 | // Return current object |
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211 | return $this; |
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212 | } |
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213 | |||
214 | // Send commands via loop to router |
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215 | 26 | foreach ($commands as $command) { |
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216 | 26 | $this->connector->writeWord(trim($command)); |
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217 | } |
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218 | |||
219 | // Write zero-terminator (empty string) |
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220 | 26 | $this->connector->writeWord(''); |
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221 | |||
222 | // Return current object |
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223 | 26 | return $this; |
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224 | } |
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225 | |||
226 | /** |
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227 | * Read RAW response from RouterOS, it can be /export command results also, not only array from API |
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228 | * |
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229 | * @param array $options |
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230 | * |
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231 | * @return array|string |
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232 | 26 | * @since 1.0.0 |
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233 | */ |
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234 | public function readRAW(array $options = []) |
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235 | 26 | { |
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236 | // By default response is empty |
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237 | 26 | $response = []; |
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238 | // We have to wait a !done or !fatal |
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239 | $lastReply = false; |
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240 | 26 | // Count !re in response |
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241 | $countResponse = 0; |
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242 | |||
243 | // Convert strings to array and return results |
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244 | if ($this->isCustomOutput()) { |
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245 | // Return RAW configuration |
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246 | 26 | return $this->customOutput; |
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247 | 26 | } |
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248 | |||
249 | 26 | // Read answer from socket in loop |
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250 | 26 | while (true) { |
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251 | $word = $this->connector->readWord(); |
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252 | |||
253 | 26 | //Limit response number to finish the read |
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254 | if (isset($options['count']) && $countResponse >= (int)$options['count']) { |
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255 | $lastReply = true; |
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256 | } |
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257 | |||
258 | 5 | if ('' === $word) { |
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259 | if ($lastReply) { |
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260 | // We received a !done or !fatal message in a precedent loop |
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261 | // response is complete |
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262 | 26 | break; |
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263 | } |
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264 | // We did not receive the !done or !fatal message |
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265 | // This 0 length message is the end of a reply !re or !trap |
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266 | 26 | // We have to wait the router to send a !done or !fatal reply followed by optionals values and a 0 length message |
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267 | 26 | continue; |
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268 | } |
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269 | |||
270 | // Save output line to response array |
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271 | $response[] = $word; |
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272 | 26 | ||
273 | // If we get a !done or !fatal line in response, we are now ready to finish the read |
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274 | // but we need to wait a 0 length message, switch the flag |
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275 | if ('!done' === $word || '!fatal' === $word) { |
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276 | $lastReply = true; |
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277 | } |
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278 | |||
279 | // If we get a !re line in response, we increment the variable |
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280 | if ('!re' === $word) { |
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281 | $countResponse++; |
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282 | } |
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283 | } |
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284 | |||
285 | // Parse results and return |
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286 | return $response; |
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287 | } |
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288 | 26 | ||
289 | /** |
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290 | * Read answer from server after query was executed |
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291 | 26 | * |
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292 | * A Mikrotik reply is formed of blocks |
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293 | * Each block starts with a word, one of ('!re', '!trap', '!done', '!fatal') |
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294 | 26 | * Each block end with an zero byte (empty line) |
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295 | * Reply ends with a complete !done or !fatal block (ended with 'empty line') |
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296 | * A !fatal block precedes TCP connexion close |
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297 | * |
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298 | * @param bool $parse If need parse output to array |
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299 | * @param array $options |
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300 | 26 | * |
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301 | * @return mixed |
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302 | */ |
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303 | public function read(bool $parse = true, array $options = []) |
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304 | { |
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305 | // Read RAW response |
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306 | $response = $this->readRAW($options); |
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307 | |||
308 | // Return RAW configuration if custom output is set |
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309 | 3 | if ($this->isCustomOutput()) { |
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310 | $this->customOutput = null; |
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311 | 3 | return $response; |
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312 | } |
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313 | |||
314 | // Parse results and return |
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315 | return $parse ? $this->rosario($response) : $response; |
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316 | } |
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317 | |||
318 | /** |
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319 | * Read using Iterators to improve performance on large dataset |
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320 | * |
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321 | * @return \RouterOS\ResponseIterator |
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322 | * @since 1.0.0 |
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323 | */ |
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324 | public function readAsIterator(): ResponseIterator |
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325 | { |
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326 | return new ResponseIterator($this); |
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327 | 4 | } |
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328 | |||
329 | /** |
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330 | 4 | * This method was created by memory save reasons, it convert response |
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331 | 4 | * from RouterOS to readable array in safe way. |
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332 | 4 | * |
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333 | * @param array $raw Array RAW response from server |
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334 | 4 | * |
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335 | * @return mixed |
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336 | 1 | * |
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337 | * Based on RouterOSResponseArray solution by @arily |
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338 | 1 | * |
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339 | 1 | * @see https://github.com/arily/RouterOSResponseArray |
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340 | 1 | * @since 1.0.0 |
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341 | */ |
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342 | private function rosario(array $raw): array |
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343 | 1 | { |
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344 | 1 | // This RAW should't be an error |
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345 | 1 | $positions = array_keys($raw, '!re'); |
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346 | $count = count($raw); |
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347 | $result = []; |
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348 | |||
349 | 1 | if (isset($positions[1])) { |
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350 | |||
351 | foreach ($positions as $key => $position) { |
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352 | // Get length of future block |
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353 | 4 | $length = isset($positions[$key + 1]) |
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354 | ? $positions[$key + 1] - $position + 1 |
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355 | : $count - $position; |
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356 | 4 | ||
357 | // Convert array to simple items |
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358 | $item = []; |
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359 | for ($i = 1; $i < $length; $i++) { |
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360 | $item[] = array_shift($raw); |
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361 | } |
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362 | |||
363 | // Save as result |
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364 | $result[] = $this->parseResponse($item)[0]; |
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365 | } |
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366 | 5 | ||
367 | } else { |
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368 | 5 | $result = $this->parseResponse($raw); |
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369 | 5 | } |
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370 | 5 | ||
371 | 5 | return $result; |
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372 | 5 | } |
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373 | 5 | ||
374 | 2 | /** |
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375 | 2 | * Parse response from Router OS |
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376 | 5 | * |
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377 | 1 | * @param array $response Response data |
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378 | 1 | * |
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379 | 4 | * @return array Array with parsed data |
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380 | 4 | */ |
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381 | public function parseResponse(array $response): array |
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382 | 4 | { |
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383 | $result = []; |
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384 | 4 | $i = -1; |
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385 | 3 | $lines = count($response); |
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386 | foreach ($response as $key => $value) { |
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387 | switch ($value) { |
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388 | 4 | case '!re': |
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389 | $i++; |
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390 | 2 | break; |
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391 | 2 | case '!fatal': |
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392 | $result = $response; |
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393 | break 2; |
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394 | 5 | case '!trap': |
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395 | case '!done': |
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396 | // Check for =ret=, .tag and any other following messages |
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397 | for ($j = $key + 1; $j <= $lines; $j++) { |
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398 | // If we have lines after current one |
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399 | if (isset($response[$j])) { |
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400 | $this->preParseResponse($response[$j], $result, $matches); |
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401 | } |
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402 | } |
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403 | break 2; |
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404 | default: |
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405 | 4 | $this->preParseResponse($value, $result, $matches, $i); |
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406 | break; |
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407 | 4 | } |
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408 | 4 | } |
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409 | 4 | return $result; |
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410 | } |
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411 | 4 | ||
412 | /** |
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413 | * Response helper |
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414 | * |
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415 | * @param string $value Value which should be parsed |
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416 | * @param array $result Array with parsed response |
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417 | * @param array|null $matches Matched words |
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418 | * @param string|int $iterator Type of iterations or number of item |
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419 | 9 | */ |
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420 | private function preParseResponse(string $value, array &$result, ?array &$matches, $iterator = 'after'): void |
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421 | 9 | { |
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422 | 9 | $this->pregResponse($value, $matches); |
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423 | if (isset($matches[1][0], $matches[2][0])) { |
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424 | $result[$iterator][$matches[1][0]] = $matches[2][0]; |
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425 | } |
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426 | } |
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427 | |||
428 | /** |
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429 | * Parse result from RouterOS by regular expression |
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430 | * |
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431 | * @param string $value |
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432 | * @param array|null $matches |
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433 | */ |
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434 | 26 | protected function pregResponse(string $value, ?array &$matches): void |
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435 | { |
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436 | preg_match_all('/^[=|.]([.\w-]+)=(.*)/', $value, $matches); |
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437 | 26 | } |
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438 | |||
439 | 2 | /** |
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440 | * Authorization logic |
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441 | * |
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442 | 2 | * @param bool $legacyRetry Retry login if we detect legacy version of RouterOS |
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443 | 2 | * |
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444 | 2 | * @return bool |
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445 | * @throws \RouterOS\Exceptions\ClientException |
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446 | * @throws \RouterOS\Exceptions\ConfigException |
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447 | * @throws \RouterOS\Exceptions\QueryException |
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448 | 26 | */ |
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449 | 26 | private function login(bool $legacyRetry = false): bool |
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450 | 26 | { |
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451 | // If legacy login scheme is enabled |
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452 | if ($this->config('legacy')) { |
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453 | // For the first we need get hash with salt |
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454 | $response = $this->query('/login')->read(); |
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455 | 26 | ||
456 | // Now need use this hash for authorization |
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457 | $query = new Query('/login', [ |
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458 | '=name=' . $this->config('user'), |
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459 | 26 | '=response=00' . md5(chr(0) . $this->config('pass') . pack('H*', $response['after']['ret'])), |
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460 | ]); |
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461 | } else { |
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462 | // Just login with our credentials |
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463 | $query = new Query('/login', [ |
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464 | '=name=' . $this->config('user'), |
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465 | '=password=' . $this->config('pass'), |
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466 | 26 | ]); |
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467 | 1 | ||
468 | 1 | // If we set modern auth scheme but router with legacy firmware then need to retry query, |
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469 | // but need to prevent endless loop |
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470 | $legacyRetry = true; |
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471 | } |
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472 | 26 | ||
473 | 1 | // Execute query and get response |
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474 | $response = $this->query($query)->read(false); |
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475 | |||
476 | // if: |
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477 | 26 | // - we have more than one response |
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478 | // - response is '!done' |
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479 | // => problem with legacy version, swap it and retry |
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480 | // Only tested with ROS pre 6.43, will test with post 6.43 => this could make legacy parameter obsolete? |
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481 | if ($legacyRetry && $this->isLegacy($response)) { |
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482 | $this->config->set('legacy', true); |
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483 | return $this->login(); |
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484 | } |
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485 | |||
486 | // If RouterOS answered with invalid credentials then throw error |
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487 | if (!empty($response[0]) && '!trap' === $response[0]) { |
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488 | 26 | throw new ClientException('Invalid user name or password'); |
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489 | } |
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490 | 26 | ||
491 | // Return true if we have only one line from server and this line is !done |
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492 | return (1 === count($response)) && isset($response[0]) && ('!done' === $response[0]); |
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493 | } |
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494 | |||
495 | /** |
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496 | * Detect by login request if firmware is legacy |
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497 | * |
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498 | * @param array $response |
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499 | * |
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500 | * @return bool |
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501 | 26 | * @throws \RouterOS\Exceptions\ConfigException |
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502 | */ |
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503 | private function isLegacy(array $response): bool |
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504 | 26 | { |
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505 | return count($response) > 1 && '!done' === $response[0] && !$this->config('legacy'); |
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506 | } |
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507 | 26 | ||
508 | /** |
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509 | * Connect to socket server |
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510 | 26 | * |
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511 | * @return bool |
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512 | * @throws \RouterOS\Exceptions\ClientException |
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513 | 26 | * @throws \RouterOS\Exceptions\ConfigException |
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514 | 26 | * @throws \RouterOS\Exceptions\QueryException |
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515 | */ |
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516 | 26 | public function connect(): bool |
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517 | 26 | { |
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518 | 26 | // By default we not connected |
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519 | $connected = false; |
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520 | |||
521 | // Few attempts in loop |
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522 | for ($attempt = 1; $attempt <= $this->config('attempts'); $attempt++) { |
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523 | |||
524 | // Initiate socket session |
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525 | $this->openSocket(); |
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526 | |||
527 | // If socket is active |
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528 | if (null !== $this->getSocket()) { |
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529 | $this->connector = new APIConnector(new Streams\ResourceStream($this->getSocket())); |
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530 | 26 | // If we logged in then exit from loop |
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531 | if (true === $this->login()) { |
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532 | $connected = true; |
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533 | break; |
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534 | } |
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535 | |||
536 | // Else close socket and start from begin |
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537 | $this->closeSocket(); |
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538 | 26 | } |
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539 | |||
540 | 26 | // Sleep some time between tries |
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541 | sleep($this->config('delay')); |
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542 | } |
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543 | |||
544 | // Return status of connection |
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545 | return $connected; |
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546 | } |
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547 | |||
548 | /** |
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549 | * Check if custom output is not empty |
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550 | * |
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551 | * @return bool |
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552 | */ |
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553 | private function isCustomOutput(): bool |
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554 | { |
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555 | return null !== $this->customOutput; |
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556 | } |
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557 | |||
558 | /** |
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559 | * Execute export command on remote host, it also will be used |
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560 | * if "/export" command passed to query. |
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561 | * |
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562 | * @param string|null $arguments String with arguments which should be passed to export command |
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563 | * |
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564 | * @return string |
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565 | * @throws \RouterOS\Exceptions\ConfigException |
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566 | * @since 1.3.0 |
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567 | */ |
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568 | public function export(string $arguments = null): string |
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569 | { |
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570 | // Connect to remote host |
||
571 | $connection = |
||
572 | (new SSHConnection()) |
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573 | ->timeout($this->config('timeout')) |
||
574 | ->to($this->config('host')) |
||
575 | ->onPort($this->config('ssh_port')) |
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576 | ->as($this->config('user') . '+etc') |
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577 | ->withPassword($this->config('pass')) |
||
578 | ->connect(); |
||
579 | |||
580 | // Run export command |
||
581 | $command = $connection->run('/export' . ' ' . $arguments); |
||
582 | |||
583 | // Return the output |
||
584 | return $command->getOutput(); |
||
585 | } |
||
586 | } |
||
587 |
If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue.