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<?php |
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namespace Spatie\SlashCommand\Handlers; |
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use Illuminate\Support\Collection; |
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use Illuminate\Support\Str; |
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use Spatie\SlashCommand\Attachment; |
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use Spatie\SlashCommand\AttachmentField; |
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use Spatie\SlashCommand\HandlesSlashCommand; |
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use Spatie\SlashCommand\Request; |
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use Spatie\SlashCommand\Response; |
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class CatchAll extends BaseHandler |
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{ |
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/** |
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* If this function returns true, the handle method will get called. |
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* |
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* @param \Spatie\SlashCommand\Request $request |
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* |
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* @return bool |
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*/ |
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public function canHandle(Request $request): bool |
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{ |
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return true; |
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} |
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/** |
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* Handle the given request. Remember that Slack expects a response |
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* within three seconds after the slash command was issued. If |
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* there is more time needed, dispatch a job. |
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* |
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* @param \Spatie\SlashCommand\Request $request |
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* |
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* @return \Spatie\SlashCommand\Response |
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*/ |
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public function handle(Request $request): Response |
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{ |
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$response = $this->respondToSlack("I did not recognize this command: `/{$request->command} {$request->text}`"); |
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[$command] = explode(' ', $this->request->text); |
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$alternativeHandlers = $this->findAlternativeHandlers($command); |
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if ($alternativeHandlers->count()) { |
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$response->withAttachment($this->getCommandListAttachment($alternativeHandlers)); |
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} |
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if ($this->containsHelpHandler($alternativeHandlers)) { |
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$response->withAttachment(Attachment::create() |
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->setText("For all available commands, try `/{$request->command} help`") |
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); |
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} |
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return $response; |
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} |
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protected function findAlternativeHandlers(string $command): Collection |
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{ |
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$alternativeHandlers = collect(config('laravel-slack-slash-command.handlers')) |
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->map(function (string $handlerClassName) { |
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return new $handlerClassName($this->request); |
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}) |
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->filter(function (HandlesSlashCommand $handler) { |
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return $handler instanceof SignatureHandler; |
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}) |
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->filter(function (SignatureHandler $handler) { |
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$signatureParts = new SignatureParts($handler->getSignature()); |
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return Str::is($signatureParts->getSlashCommandName(), $this->request->command); |
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}); |
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if (strpos($command, ':') !== false) { |
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$subHandlers = $this->findInNamespace($alternativeHandlers, $command); |
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if ($subHandlers->count()) { |
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return $subHandlers; |
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} |
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} |
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return $alternativeHandlers->filter(function (SignatureHandler $handler) use ($command) { |
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return levenshtein($handler->getName(), $command) <= 2; |
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}); |
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} |
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protected function findInNamespace(Collection $handlers, string $command): Collection |
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{ |
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// Find commands in the same namespace |
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[$namespace, $subCommand] = explode(':', $command); |
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$subHandlers = $handlers->filter(function (SignatureHandler $handler) use ($namespace) { |
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return Str::startsWith($handler->getName(), $namespace.':'); |
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}); |
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return $subHandlers; |
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} |
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protected function getCommandListAttachment(Collection $handlers): Attachment |
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{ |
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$attachmentFields = $handlers |
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->map(function (SignatureHandler $handler) { |
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return AttachmentField::create($handler->getFullCommand(), $handler->getDescription()); |
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}) |
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->all(); |
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return Attachment::create() |
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->setColor('warning') |
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->setTitle('Did you mean:') |
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->setFields($attachmentFields); |
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} |
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protected function containsHelpHandler(Collection $alternativeHandlers): bool |
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{ |
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return ! $alternativeHandlers->filter(function (SignatureHandler $handler) { |
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return $handler instanceof Help; |
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})->isEmpty(); |
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} |
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} |
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spatie /
laravel-slack-slash-command
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This check marks access to variables or properties that have not been declared yet. While PHP has no explicit notion of declaring a variable, accessing it before a value is assigned to it is most likely a bug.