deployphp /
deployer
| Total Complexity | 117 |
| Total Lines | 580 |
| Duplicated Lines | 0 % |
| Changes | 1 | ||
| Bugs | 0 | Features | 0 |
Complex classes like QuestionHelper 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 QuestionHelper, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 35 | class QuestionHelper extends Helper |
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| 36 | { |
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| 37 | /** |
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| 38 | * @var resource|null |
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| 39 | */ |
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| 40 | private $inputStream; |
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| 41 | |||
| 42 | private static $stty = true; |
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| 43 | private static $stdinIsInteractive; |
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| 44 | |||
| 45 | /** |
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| 46 | * Asks a question to the user. |
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| 47 | * |
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| 48 | * @return mixed The user answer |
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| 49 | * |
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| 50 | * @throws RuntimeException If there is no data to read in the input stream |
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| 51 | */ |
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| 52 | public function ask(InputInterface $input, OutputInterface $output, Question $question) |
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| 53 | { |
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| 54 | if ($output instanceof ConsoleOutputInterface) { |
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| 55 | $output = $output->getErrorOutput(); |
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| 56 | } |
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| 57 | |||
| 58 | if (!$input->isInteractive()) { |
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| 59 | return $this->getDefaultAnswer($question); |
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| 60 | } |
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| 61 | |||
| 62 | if ($input instanceof StreamableInputInterface && $stream = $input->getStream()) { |
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| 63 | $this->inputStream = $stream; |
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| 64 | } |
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| 65 | |||
| 66 | try { |
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| 67 | if (!$question->getValidator()) { |
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| 68 | return $this->doAsk($output, $question); |
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| 69 | } |
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| 70 | |||
| 71 | $interviewer = function () use ($output, $question) { |
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| 72 | return $this->doAsk($output, $question); |
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| 73 | }; |
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| 74 | |||
| 75 | return $this->validateAttempts($interviewer, $output, $question); |
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| 76 | } catch (MissingInputException $exception) { |
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| 77 | $input->setInteractive(false); |
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| 78 | |||
| 79 | if (null === $fallbackOutput = $this->getDefaultAnswer($question)) { |
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| 80 | throw $exception; |
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| 81 | } |
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| 82 | |||
| 83 | return $fallbackOutput; |
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| 84 | } |
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| 85 | } |
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| 86 | |||
| 87 | /** |
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| 88 | * {@inheritdoc} |
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| 89 | */ |
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| 90 | public function getName() |
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| 91 | { |
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| 92 | return 'question'; |
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| 93 | } |
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| 94 | |||
| 95 | /** |
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| 96 | * Prevents usage of stty. |
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| 97 | */ |
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| 98 | public static function disableStty() |
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| 101 | } |
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| 102 | |||
| 103 | /** |
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| 104 | * Asks the question to the user. |
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| 105 | * |
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| 106 | * @return mixed |
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| 107 | * |
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| 108 | * @throws RuntimeException In case the fallback is deactivated and the response cannot be hidden |
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| 109 | */ |
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| 110 | private function doAsk(OutputInterface $output, Question $question) |
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| 111 | { |
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| 112 | $this->writePrompt($output, $question); |
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| 113 | |||
| 114 | $inputStream = $this->inputStream ?: \STDIN; |
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| 115 | $autocomplete = $question->getAutocompleterCallback(); |
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| 116 | |||
| 117 | if (null === $autocomplete || !self::$stty || !Terminal::hasSttyAvailable()) { |
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| 118 | $ret = false; |
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| 119 | if ($question->isHidden()) { |
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| 120 | try { |
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| 121 | $hiddenResponse = $this->getHiddenResponse($output, $inputStream, $question->isTrimmable()); |
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| 122 | $ret = $question->isTrimmable() ? trim($hiddenResponse) : $hiddenResponse; |
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| 123 | } catch (RuntimeException $e) { |
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| 124 | if (!$question->isHiddenFallback()) { |
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| 125 | throw $e; |
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| 126 | } |
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| 127 | } |
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| 128 | } |
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| 129 | |||
| 130 | if (false === $ret) { |
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| 131 | $ret = $this->readInput($inputStream, $question); |
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| 132 | if (false === $ret) { |
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| 133 | throw new MissingInputException('Aborted.'); |
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| 134 | } |
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| 135 | if ($question->isTrimmable()) { |
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| 136 | $ret = trim($ret); |
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| 137 | } |
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| 138 | } |
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| 139 | } else { |
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| 140 | $autocomplete = $this->autocomplete($output, $question, $inputStream, $autocomplete); |
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| 141 | $ret = $question->isTrimmable() ? trim($autocomplete) : $autocomplete; |
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| 142 | } |
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| 143 | |||
| 144 | if ($output instanceof ConsoleSectionOutput) { |
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| 145 | $output->addContent($ret); |
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| 146 | } |
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| 147 | |||
| 148 | $ret = \strlen($ret) > 0 ? $ret : $question->getDefault(); |
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| 149 | |||
| 150 | if ($normalizer = $question->getNormalizer()) { |
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| 151 | return $normalizer($ret); |
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| 152 | } |
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| 153 | |||
| 154 | return $ret; |
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| 155 | } |
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| 156 | |||
| 157 | /** |
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| 158 | * @return mixed |
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| 159 | */ |
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| 160 | private function getDefaultAnswer(Question $question) |
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| 161 | { |
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| 162 | $default = $question->getDefault(); |
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| 163 | |||
| 164 | if (null === $default) { |
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| 165 | return $default; |
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| 166 | } |
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| 167 | |||
| 168 | if ($validator = $question->getValidator()) { |
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| 169 | return \call_user_func($question->getValidator(), $default); |
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| 170 | } elseif ($question instanceof ChoiceQuestion) { |
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| 171 | $choices = $question->getChoices(); |
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| 172 | |||
| 173 | if (!$question->isMultiselect()) { |
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| 174 | return $choices[$default] ?? $default; |
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| 175 | } |
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| 176 | |||
| 177 | $default = explode(',', $default); |
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| 178 | foreach ($default as $k => $v) { |
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| 179 | $v = $question->isTrimmable() ? trim($v) : $v; |
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| 180 | $default[$k] = $choices[$v] ?? $v; |
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| 181 | } |
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| 182 | } |
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| 183 | |||
| 184 | return $default; |
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| 185 | } |
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| 186 | |||
| 187 | /** |
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| 188 | * Outputs the question prompt. |
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| 189 | */ |
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| 190 | protected function writePrompt(OutputInterface $output, Question $question) |
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| 191 | { |
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| 192 | $message = $question->getQuestion(); |
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| 193 | |||
| 194 | if ($question instanceof ChoiceQuestion) { |
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| 195 | $output->writeln(array_merge([ |
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| 196 | $question->getQuestion(), |
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| 197 | ], $this->formatChoiceQuestionChoices($question, 'info'))); |
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| 198 | |||
| 199 | $message = $question->getPrompt(); |
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| 200 | } |
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| 201 | |||
| 202 | $output->write($message); |
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| 203 | } |
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| 204 | |||
| 205 | /** |
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| 206 | * @return string[] |
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| 207 | */ |
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| 208 | protected function formatChoiceQuestionChoices(ChoiceQuestion $question, string $tag) |
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| 209 | { |
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| 210 | $messages = []; |
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| 211 | |||
| 212 | $maxWidth = max(array_map([__CLASS__, 'width'], array_keys($choices = $question->getChoices()))); |
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| 213 | |||
| 214 | foreach ($choices as $key => $value) { |
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| 215 | $padding = str_repeat(' ', $maxWidth - self::width($key)); |
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| 216 | |||
| 217 | $messages[] = sprintf(" [<$tag>%s$padding</$tag>] %s", $key, $value); |
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| 218 | } |
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| 219 | |||
| 220 | return $messages; |
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| 221 | } |
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| 222 | |||
| 223 | /** |
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| 224 | * Outputs an error message. |
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| 225 | */ |
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| 226 | protected function writeError(OutputInterface $output, \Exception $error) |
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| 227 | { |
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| 228 | if (null !== $this->getHelperSet() && $this->getHelperSet()->has('formatter')) { |
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| 229 | $message = $this->getHelperSet()->get('formatter')->formatBlock($error->getMessage(), 'error'); |
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| 230 | } else { |
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| 231 | $message = '<error>'.$error->getMessage().'</error>'; |
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| 232 | } |
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| 233 | |||
| 234 | $output->writeln($message); |
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| 235 | } |
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| 236 | |||
| 237 | /** |
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| 238 | * Autocompletes a question. |
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| 239 | * |
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| 240 | * @param resource $inputStream |
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| 241 | */ |
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| 242 | private function autocomplete(OutputInterface $output, Question $question, $inputStream, callable $autocomplete): string |
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| 243 | { |
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| 244 | $cursor = new Cursor($output, $inputStream); |
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| 245 | |||
| 246 | $fullChoice = ''; |
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| 247 | $ret = ''; |
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| 248 | |||
| 249 | $i = 0; |
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| 250 | $ofs = -1; |
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| 251 | $matches = $autocomplete($ret); |
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| 252 | $numMatches = \count($matches); |
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| 253 | |||
| 254 | $sttyMode = shell_exec('stty -g'); |
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| 255 | $isStdin = 'php://stdin' === (stream_get_meta_data($inputStream)['uri'] ?? null); |
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| 256 | $r = [$inputStream]; |
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| 257 | $w = []; |
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| 258 | |||
| 259 | // Disable icanon (so we can fread each keypress) and echo (we'll do echoing here instead) |
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| 260 | shell_exec('stty -icanon -echo'); |
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| 261 | |||
| 262 | // Add highlighted text style |
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| 263 | $output->getFormatter()->setStyle('hl', new OutputFormatterStyle('black', 'white')); |
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| 264 | |||
| 265 | // Read a keypress |
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| 266 | while (!feof($inputStream)) { |
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| 267 | while ($isStdin && 0 === @stream_select($r, $w, $w, 0, 100)) { |
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| 268 | // Give signal handlers a chance to run |
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| 269 | $r = [$inputStream]; |
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| 270 | } |
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| 271 | $c = fread($inputStream, 1); |
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| 272 | |||
| 273 | // as opposed to fgets(), fread() returns an empty string when the stream content is empty, not false. |
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| 274 | if (false === $c || ('' === $ret && '' === $c && null === $question->getDefault())) { |
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| 275 | shell_exec('stty '.$sttyMode); |
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| 276 | throw new MissingInputException('Aborted.'); |
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| 277 | } elseif ("\177" === $c) { // Backspace Character |
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| 278 | if (0 === $numMatches && 0 !== $i) { |
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| 279 | --$i; |
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| 280 | $cursor->moveLeft(s($fullChoice)->slice(-1)->width(false)); |
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| 281 | |||
| 282 | $fullChoice = self::substr($fullChoice, 0, $i); |
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| 283 | } |
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| 284 | |||
| 285 | if (0 === $i) { |
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| 286 | $ofs = -1; |
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| 287 | $matches = $autocomplete($ret); |
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| 288 | $numMatches = \count($matches); |
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| 289 | } else { |
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| 290 | $numMatches = 0; |
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| 291 | } |
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| 292 | |||
| 293 | // Pop the last character off the end of our string |
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| 294 | $ret = self::substr($ret, 0, $i); |
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| 295 | } elseif ("\033" === $c) { |
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| 296 | // Did we read an escape sequence? |
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| 297 | $c .= fread($inputStream, 2); |
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| 298 | |||
| 299 | // A = Up Arrow. B = Down Arrow |
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| 300 | if (isset($c[2]) && ('A' === $c[2] || 'B' === $c[2])) { |
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| 301 | if ('A' === $c[2] && -1 === $ofs) { |
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| 302 | $ofs = 0; |
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| 303 | } |
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| 304 | |||
| 305 | if (0 === $numMatches) { |
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| 306 | continue; |
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| 307 | } |
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| 308 | |||
| 309 | $ofs += ('A' === $c[2]) ? -1 : 1; |
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| 310 | $ofs = ($numMatches + $ofs) % $numMatches; |
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| 311 | } |
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| 312 | } elseif (\ord($c) < 32) { |
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| 313 | if ("\t" === $c || "\n" === $c) { |
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| 314 | if ($numMatches > 0 && -1 !== $ofs) { |
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| 315 | $ret = (string) $matches[$ofs]; |
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| 316 | // Echo out remaining chars for current match |
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| 317 | $remainingCharacters = substr($ret, \strlen(trim($this->mostRecentlyEnteredValue($fullChoice)))); |
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| 318 | $output->write($remainingCharacters); |
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| 319 | $fullChoice .= $remainingCharacters; |
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| 320 | $i = (false === $encoding = mb_detect_encoding($fullChoice, null, true)) ? \strlen($fullChoice) : mb_strlen($fullChoice, $encoding); |
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| 321 | |||
| 322 | $matches = array_filter( |
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| 323 | $autocomplete($ret), |
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| 324 | function ($match) use ($ret) { |
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| 325 | return '' === $ret || str_starts_with($match, $ret); |
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| 326 | } |
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| 327 | ); |
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| 328 | $numMatches = \count($matches); |
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| 329 | $ofs = -1; |
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| 330 | } |
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| 331 | |||
| 332 | if ("\n" === $c) { |
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| 333 | $output->write($c); |
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| 334 | break; |
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| 335 | } |
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| 336 | |||
| 337 | $numMatches = 0; |
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| 338 | } |
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| 339 | |||
| 340 | continue; |
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| 341 | } else { |
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| 342 | if ("\x80" <= $c) { |
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| 343 | $c .= fread($inputStream, ["\xC0" => 1, "\xD0" => 1, "\xE0" => 2, "\xF0" => 3][$c & "\xF0"]); |
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| 344 | } |
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| 345 | |||
| 346 | $output->write($c); |
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| 347 | $ret .= $c; |
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| 348 | $fullChoice .= $c; |
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| 349 | ++$i; |
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| 350 | |||
| 351 | $tempRet = $ret; |
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| 352 | |||
| 353 | if ($question instanceof ChoiceQuestion && $question->isMultiselect()) { |
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| 354 | $tempRet = $this->mostRecentlyEnteredValue($fullChoice); |
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| 355 | } |
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| 356 | |||
| 357 | $numMatches = 0; |
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| 358 | $ofs = 0; |
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| 359 | |||
| 360 | foreach ($autocomplete($ret) as $value) { |
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| 361 | // If typed characters match the beginning chunk of value (e.g. [AcmeDe]moBundle) |
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| 362 | if (str_starts_with($value, $tempRet)) { |
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| 363 | $matches[$numMatches++] = $value; |
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| 364 | } |
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| 365 | } |
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| 366 | } |
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| 367 | |||
| 368 | $cursor->clearLineAfter(); |
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| 369 | |||
| 370 | if ($numMatches > 0 && -1 !== $ofs) { |
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| 371 | $cursor->savePosition(); |
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| 372 | // Write highlighted text, complete the partially entered response |
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| 373 | $charactersEntered = \strlen(trim($this->mostRecentlyEnteredValue($fullChoice))); |
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| 374 | $output->write('<hl>'.OutputFormatter::escapeTrailingBackslash(substr($matches[$ofs], $charactersEntered)).'</hl>'); |
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| 375 | $cursor->restorePosition(); |
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| 376 | } |
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| 377 | } |
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| 378 | |||
| 379 | // Reset stty so it behaves normally again |
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| 380 | shell_exec('stty '.$sttyMode); |
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| 381 | |||
| 382 | return $fullChoice; |
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| 383 | } |
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| 384 | |||
| 385 | private function mostRecentlyEnteredValue(string $entered): string |
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| 386 | { |
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| 387 | // Determine the most recent value that the user entered |
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| 388 | if (!str_contains($entered, ',')) { |
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| 389 | return $entered; |
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| 390 | } |
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| 391 | |||
| 392 | $choices = explode(',', $entered); |
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| 393 | if ('' !== $lastChoice = trim($choices[\count($choices) - 1])) { |
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| 394 | return $lastChoice; |
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| 395 | } |
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| 396 | |||
| 397 | return $entered; |
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| 398 | } |
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| 399 | |||
| 400 | /** |
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| 401 | * Gets a hidden response from user. |
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| 402 | * |
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| 403 | * @param resource $inputStream The handler resource |
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| 404 | * @param bool $trimmable Is the answer trimmable |
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| 405 | * |
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| 406 | * @throws RuntimeException In case the fallback is deactivated and the response cannot be hidden |
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| 407 | */ |
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| 408 | private function getHiddenResponse(OutputInterface $output, $inputStream, bool $trimmable = true): string |
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| 409 | { |
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| 410 | if ('\\' === \DIRECTORY_SEPARATOR) { |
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| 411 | $exe = __DIR__.'/../Resources/bin/hiddeninput.exe'; |
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| 412 | |||
| 413 | // handle code running from a phar |
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| 414 | if ('phar:' === substr(__FILE__, 0, 5)) { |
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| 415 | $tmpExe = sys_get_temp_dir().'/hiddeninput.exe'; |
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| 416 | copy($exe, $tmpExe); |
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| 417 | $exe = $tmpExe; |
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| 418 | } |
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| 419 | |||
| 420 | $sExec = shell_exec('"'.$exe.'"'); |
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| 421 | $value = $trimmable ? rtrim($sExec) : $sExec; |
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| 422 | $output->writeln(''); |
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| 423 | |||
| 424 | if (isset($tmpExe)) { |
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| 425 | unlink($tmpExe); |
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| 426 | } |
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| 427 | |||
| 428 | return $value; |
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| 429 | } |
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| 430 | |||
| 431 | if (self::$stty && Terminal::hasSttyAvailable()) { |
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| 432 | $sttyMode = shell_exec('stty -g'); |
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| 433 | shell_exec('stty -echo'); |
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| 434 | } elseif ($this->isInteractiveInput($inputStream)) { |
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| 435 | throw new RuntimeException('Unable to hide the response.'); |
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| 436 | } |
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| 437 | |||
| 438 | $value = fgets($inputStream, 4096); |
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| 439 | |||
| 440 | if (self::$stty && Terminal::hasSttyAvailable()) { |
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| 441 | shell_exec('stty '.$sttyMode); |
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| 442 | } |
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| 443 | |||
| 444 | if (false === $value) { |
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| 445 | throw new MissingInputException('Aborted.'); |
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| 446 | } |
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| 447 | if ($trimmable) { |
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| 448 | $value = trim($value); |
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| 449 | } |
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| 450 | $output->writeln(''); |
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| 451 | |||
| 452 | return $value; |
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| 453 | } |
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| 454 | |||
| 455 | /** |
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| 456 | * Validates an attempt. |
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| 457 | * |
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| 458 | * @param callable $interviewer A callable that will ask for a question and return the result |
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| 459 | * |
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| 460 | * @return mixed The validated response |
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| 461 | * |
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| 462 | * @throws \Exception In case the max number of attempts has been reached and no valid response has been given |
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| 463 | */ |
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| 464 | private function validateAttempts(callable $interviewer, OutputInterface $output, Question $question) |
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| 465 | { |
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| 466 | $error = null; |
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| 467 | $attempts = $question->getMaxAttempts(); |
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| 468 | |||
| 469 | while (null === $attempts || $attempts--) { |
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| 470 | if (null !== $error) { |
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| 471 | $this->writeError($output, $error); |
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| 472 | } |
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| 473 | |||
| 474 | try { |
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| 475 | return $question->getValidator()($interviewer()); |
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| 476 | } catch (RuntimeException $e) { |
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| 477 | throw $e; |
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| 478 | } catch (\Exception $error) { |
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| 479 | } |
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| 480 | } |
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| 481 | |||
| 482 | throw $error; |
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| 483 | } |
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| 484 | |||
| 485 | private function isInteractiveInput($inputStream): bool |
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| 486 | { |
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| 487 | if ('php://stdin' !== (stream_get_meta_data($inputStream)['uri'] ?? null)) { |
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| 488 | return false; |
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| 489 | } |
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| 490 | |||
| 491 | if (null !== self::$stdinIsInteractive) { |
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| 492 | return self::$stdinIsInteractive; |
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| 493 | } |
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| 494 | |||
| 495 | if (\function_exists('stream_isatty')) { |
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| 496 | return self::$stdinIsInteractive = @stream_isatty(fopen('php://stdin', 'r')); |
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| 497 | } |
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| 498 | |||
| 499 | if (\function_exists('posix_isatty')) { |
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| 500 | return self::$stdinIsInteractive = @posix_isatty(fopen('php://stdin', 'r')); |
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| 501 | } |
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| 502 | |||
| 503 | if (!\function_exists('exec')) { |
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| 504 | return self::$stdinIsInteractive = true; |
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| 505 | } |
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| 506 | |||
| 507 | exec('stty 2> /dev/null', $output, $status); |
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| 508 | |||
| 509 | return self::$stdinIsInteractive = 1 !== $status; |
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| 510 | } |
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| 511 | |||
| 512 | /** |
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| 513 | * Reads one or more lines of input and returns what is read. |
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| 514 | * |
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| 515 | * @param resource $inputStream The handler resource |
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| 516 | * @param Question $question The question being asked |
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| 517 | * |
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| 518 | * @return string|false The input received, false in case input could not be read |
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| 519 | */ |
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| 520 | private function readInput($inputStream, Question $question) |
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| 521 | { |
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| 522 | if (!$question->isMultiline()) { |
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| 523 | $cp = $this->setIOCodepage(); |
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| 524 | $ret = fgets($inputStream, 4096); |
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| 525 | |||
| 526 | return $this->resetIOCodepage($cp, $ret); |
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| 527 | } |
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| 528 | |||
| 529 | $multiLineStreamReader = $this->cloneInputStream($inputStream); |
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| 530 | if (null === $multiLineStreamReader) { |
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| 531 | return false; |
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| 532 | } |
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| 533 | |||
| 534 | $ret = ''; |
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| 535 | $cp = $this->setIOCodepage(); |
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| 536 | while (false !== ($char = fgetc($multiLineStreamReader))) { |
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| 537 | if (\PHP_EOL === "{$ret}{$char}") { |
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| 538 | break; |
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| 539 | } |
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| 540 | $ret .= $char; |
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| 541 | } |
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| 542 | |||
| 543 | return $this->resetIOCodepage($cp, $ret); |
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| 544 | } |
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| 545 | |||
| 546 | /** |
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| 547 | * Sets console I/O to the host code page. |
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| 548 | * |
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| 549 | * @return int Previous code page in IBM/EBCDIC format |
||
| 550 | */ |
||
| 551 | private function setIOCodepage(): int |
||
| 552 | { |
||
| 553 | if (\function_exists('sapi_windows_cp_set')) { |
||
| 554 | $cp = sapi_windows_cp_get(); |
||
| 555 | sapi_windows_cp_set(sapi_windows_cp_get('oem')); |
||
| 556 | |||
| 557 | return $cp; |
||
| 558 | } |
||
| 559 | |||
| 560 | return 0; |
||
| 561 | } |
||
| 562 | |||
| 563 | /** |
||
| 564 | * Sets console I/O to the specified code page and converts the user input. |
||
| 565 | * |
||
| 566 | * @param string|false $input |
||
| 567 | * |
||
| 568 | * @return string|false |
||
| 569 | */ |
||
| 570 | private function resetIOCodepage(int $cp, $input) |
||
| 581 | } |
||
| 582 | |||
| 583 | /** |
||
| 584 | * Clones an input stream in order to act on one instance of the same |
||
| 585 | * stream without affecting the other instance. |
||
| 586 | * |
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| 587 | * @param resource $inputStream The handler resource |
||
| 588 | * |
||
| 589 | * @return resource|null The cloned resource, null in case it could not be cloned |
||
| 590 | */ |
||
| 591 | private function cloneInputStream($inputStream) |
||
| 615 | } |
||
| 616 | } |
||
| 617 |
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This check compares calls to functions or methods with their respective definitions. If the call has less arguments than are defined, it raises an issue.
If a function is defined several times with a different number of parameters, the check may pick up the wrong definition and report false positives. One codebase where this has been known to happen is Wordpress. Please note the @ignore annotation hint above.