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<?php |
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namespace Deployer\Ssh; |
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use Deployer\Host\Host; |
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/** |
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* @author Michael Woodward <[email protected]> |
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*/ |
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class Arguments |
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{ |
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/** |
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* @var array |
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*/ |
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private $flags = []; |
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/** |
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* @var array |
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*/ |
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private $options = []; |
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public function getCliArguments() : string |
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{ |
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$boolFlags = array_keys(array_filter($this->flags, 'is_null')); |
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$valueFlags = array_filter($this->flags); |
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$valueFlags = array_map(function ($key, $value) { |
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return "$key $value"; |
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}, array_keys($valueFlags), $valueFlags); |
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$options = array_map(function ($key, $value) { |
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return "-o $key=$value"; |
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}, array_keys($this->options), $this->options); |
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$args = sprintf('%s %s %s', implode(' ', $boolFlags), implode(' ', $valueFlags), implode(' ', $options)); |
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return trim(preg_replace('!\s+!', ' ', $args)); |
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} |
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public function getOption(string $option) : string |
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{ |
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return $this->options[$option] ?? ''; |
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} |
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/** |
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* @param string $flag |
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* @return bool|mixed |
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*/ |
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public function getFlag(string $flag) |
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{ |
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if (!array_key_exists($flag, $this->flags)) { |
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return false; |
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} |
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return $this->flags[$flag] ?? true; |
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} |
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public function withFlags(array $flags) : Arguments |
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{ |
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$clone = clone $this; |
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$clone->flags = $this->buildFlagsFromArray($flags); |
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return $clone; |
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} |
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public function withOptions(array $options) : Arguments |
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{ |
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$clone = clone $this; |
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$clone->options = $options; |
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return $clone; |
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} |
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public function withFlag(string $flag, string $value = null) : Arguments |
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{ |
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$clone = clone $this; |
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$clone->flags = array_merge($this->flags, [$flag => $value]); |
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return $clone; |
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} |
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public function withOption(string $option, string $value) : Arguments |
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{ |
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$clone = clone $this; |
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$clone->options = array_merge($this->options, [$option => $value]); |
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return $clone; |
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} |
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public function withDefaults(Arguments $defaultOptions) : Arguments |
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{ |
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$clone = clone $this; |
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$clone->options = array_merge($defaultOptions->options, $this->options); |
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$clone->flags = array_merge($defaultOptions->flags, $this->flags); |
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return $clone; |
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} |
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public function withMultiplexing(Host $host) : Arguments |
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{ |
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$controlPath = $this->generateControlPath($host); |
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$multiplexDefaults = (new Arguments)->withOptions([ |
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'ControlMaster' => 'auto', |
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'ControlPersist' => '60', |
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'ControlPath' => $controlPath, |
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]); |
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return $this->withDefaults($multiplexDefaults); |
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} |
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/** |
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* Return SSH multiplexing control path |
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* |
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* When ControlPath is longer than 104 chars we can get: |
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* |
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* SSH Error: unix_listener: too long for Unix domain socket |
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* |
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* So try to get as descriptive path as possible. |
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* %C is for creating hash out of connection attributes. |
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* |
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* @param Host $host |
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* @return string ControlPath |
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* @throws Exception |
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*/ |
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private function generateControlPath(Host $host) |
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{ |
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$connectionData = "$host{$host->getPort()}"; |
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$tryLongestPossible = 0; |
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$controlPath = ''; |
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do { |
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switch ($tryLongestPossible) { |
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case 1: |
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$controlPath = "~/.ssh/deployer_mux_$connectionData"; |
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break; |
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case 2: |
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$controlPath = "~/.ssh/deployer_mux_%C"; |
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break; |
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case 3: |
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$controlPath = "~/deployer_mux_$connectionData"; |
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break; |
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case 4: |
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$controlPath = "~/deployer_mux_%C"; |
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break; |
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case 5: |
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$controlPath = "~/mux_%C"; |
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break; |
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case 6: |
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throw new Exception("The multiplexing control path is too long. Control path is: $controlPath"); |
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default: |
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$controlPath = "~/.ssh/deployer_mux_$connectionData"; |
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} |
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$tryLongestPossible++; |
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} while (strlen($controlPath) > 104); // Unix socket max length |
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return $controlPath; |
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} |
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8 |
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private function buildFlagsFromArray($flags) : array |
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{ |
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$boolFlags = array_filter(array_map(function ($key, $value) { |
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if (is_int($key)) { |
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return $value; |
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} |
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4 |
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if (null === $value) { |
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return $key; |
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} |
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}, array_keys($flags), $flags)); |
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$valueFlags = array_filter($flags, function ($key, $value) { |
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return is_string($key) && is_string($value); |
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}, ARRAY_FILTER_USE_BOTH); |
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return array_merge(array_fill_keys($boolFlags, null), $valueFlags); |
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} |
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public function __toString() : string |
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{ |
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return $this->getCliArguments(); |
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} |
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} |
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deployphp /
deployer
