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<?php
namespace Illuminate\Console\Scheduling;
use Closure;
use Cron\CronExpression;
use Illuminate\Support\Arr;
use Illuminate\Support\Carbon;
use GuzzleHttp\Client as HttpClient;
use Illuminate\Contracts\Mail\Mailer;
use Symfony\Component\Process\Process;
use Illuminate\Support\Traits\Macroable;
use Illuminate\Contracts\Container\Container;
class Event
{
use Macroable, ManagesFrequencies;
/**
* The command string.
*
* @var string
*/
public $command;
/**
* The cron expression representing the event's frequency.
*
* @var string
*/
public $expression = '* * * * *';
/**
* The timezone the date should be evaluated on.
*
* @var \DateTimeZone|string
*/
public $timezone;
/**
* The user the command should run as.
*
* @var string
*/
public $user;
/**
* The list of environments the command should run under.
*
* @var array
*/
public $environments = [];
/**
* Indicates if the command should run in maintenance mode.
*
* @var bool
*/
public $evenInMaintenanceMode = false;
/**
* Indicates if the command should not overlap itself.
*
* @var bool
*/
public $withoutOverlapping = false;
/**
* Indicates if the command should only be allowed to run on one server for each cron expression.
*
* @var bool
*/
public $onOneServer = false;
/**
* The amount of time the mutex should be valid.
*
* @var int
*/
public $expiresAt = 1440;
/**
* Indicates if the command should run in background.
*
* @var bool
*/
public $runInBackground = false;
/**
* The array of filter callbacks.
*
* @var array
*/
protected $filters = [];
/**
* The array of reject callbacks.
*
* @var array
*/
protected $rejects = [];
/**
* The location that output should be sent to.
*
* @var string
*/
public $output = '/dev/null';
/**
* Indicates whether output should be appended.
*
* @var bool
*/
public $shouldAppendOutput = false;
/**
* The array of callbacks to be run before the event is started.
*
* @var array
*/
protected $beforeCallbacks = [];
/**
* The array of callbacks to be run after the event is finished.
*
* @var array
*/
protected $afterCallbacks = [];
/**
* The human readable description of the event.
*
* @var string
*/
public $description;
/**
* The event mutex implementation.
*
* @var \Illuminate\Console\Scheduling\EventMutex
*/
public $mutex;
/**
* Create a new event instance.
*
* @param \Illuminate\Console\Scheduling\EventMutex $mutex
* @param string $command
* @return void
*/
public function __construct(EventMutex $mutex, $command)
{
$this->mutex = $mutex;
$this->command = $command;
$this->output = $this->getDefaultOutput();
}
/**
* Get the default output depending on the OS.
*
* @return string
*/
public function getDefaultOutput()
{
return (DIRECTORY_SEPARATOR == '\\') ? 'NUL' : '/dev/null';
}
/**
* Run the given event.
*
* @param \Illuminate\Contracts\Container\Container $container
* @return void
*/
public function run(Container $container)
{
if ($this->withoutOverlapping &&
! $this->mutex->create($this)) {
return;
}
$this->runInBackground
? $this->runCommandInBackground($container)
: $this->runCommandInForeground($container);
}
/**
* Get the mutex name for the scheduled command.
*
* @return string
*/
public function mutexName()
{
return 'framework'.DIRECTORY_SEPARATOR.'schedule-'.sha1($this->expression.$this->command);
}
/**
* Run the command in the foreground.
*
* @param \Illuminate\Contracts\Container\Container $container
* @return void
*/
protected function runCommandInForeground(Container $container)
{
$this->callBeforeCallbacks($container);
(new Process(
$this->buildCommand(), base_path(), null, null, null
))->run();
$this->callAfterCallbacks($container);
}
/**
* Run the command in the background.
*
* @param \Illuminate\Contracts\Container\Container $container
* @return void
*/
protected function runCommandInBackground(Container $container)
{
$this->callBeforeCallbacks($container);
(new Process(
$this->buildCommand(), base_path(), null, null, null
))->run();
}
/**
* Call all of the "before" callbacks for the event.
*
* @param \Illuminate\Contracts\Container\Container $container
* @return void
*/
public function callBeforeCallbacks(Container $container)
{
foreach ($this->beforeCallbacks as $callback) {
$container->call($callback);
}
}
/**
* Call all of the "after" callbacks for the event.
*
* @param \Illuminate\Contracts\Container\Container $container
* @return void
*/
public function callAfterCallbacks(Container $container)
{
foreach ($this->afterCallbacks as $callback) {
$container->call($callback);
}
}
/**
* Build the command string.
*
* @return string
*/
public function buildCommand()
{
return (new CommandBuilder)->buildCommand($this);
}
/**
* Determine if the given event should run based on the Cron expression.
*
* @param \Illuminate\Contracts\Foundation\Application $app
* @return bool
*/
public function isDue($app)
{
if (! $this->runsInMaintenanceMode() && $app->isDownForMaintenance()) {
return false;
}
return $this->expressionPasses() &&
$this->runsInEnvironment($app->environment());
}
/**
* Determine if the event runs in maintenance mode.
*
* @return bool
*/
public function runsInMaintenanceMode()
{
return $this->evenInMaintenanceMode;
}
/**
* Determine if the Cron expression passes.
*
* @return bool
*/
protected function expressionPasses()
{
$date = Carbon::now();
if ($this->timezone) {
$date->setTimezone($this->timezone);
}
return CronExpression::factory($this->expression)->isDue($date->toDateTimeString());
}
/**
* Determine if the event runs in the given environment.
*
* @param string $environment
* @return bool
*/
public function runsInEnvironment($environment)
{
return empty($this->environments) || in_array($environment, $this->environments);
}
/**
* Determine if the filters pass for the event.
*
* @param \Illuminate\Contracts\Foundation\Application $app
* @return bool
*/
public function filtersPass($app)
{
foreach ($this->filters as $callback) {
if (! $app->call($callback)) {
return false;
}
}
foreach ($this->rejects as $callback) {
if ($app->call($callback)) {
return false;
}
}
return true;
}
/**
* Send the output of the command to a given location.
*
* @param string $location
* @param bool $append
* @return $this
*/
public function sendOutputTo($location, $append = false)
{
$this->output = $location;
$this->shouldAppendOutput = $append;
return $this;
}
/**
* Append the output of the command to a given location.
*
* @param string $location
* @return $this
*/
public function appendOutputTo($location)
{
return $this->sendOutputTo($location, true);
}
/**
* E-mail the results of the scheduled operation.
*
* @param array|mixed $addresses
* @param bool $onlyIfOutputExists
* @return $this
*
* @throws \LogicException
*/
public function emailOutputTo($addresses, $onlyIfOutputExists = false)
{
$this->ensureOutputIsBeingCapturedForEmail();
$addresses = Arr::wrap($addresses);
return $this->then(function (Mailer $mailer) use ($addresses, $onlyIfOutputExists) {
$this->emailOutput($mailer, $addresses, $onlyIfOutputExists);
});
}
/**
* E-mail the results of the scheduled operation if it produces output.
*
* @param array|mixed $addresses
* @return $this
*
* @throws \LogicException
*/
public function emailWrittenOutputTo($addresses)
{
return $this->emailOutputTo($addresses, true);
}
/**
* Ensure that output is being captured for email.
*
* @return void
*/
protected function ensureOutputIsBeingCapturedForEmail()
{
if (is_null($this->output) || $this->output == $this->getDefaultOutput()) {
$this->sendOutputTo(storage_path('logs/schedule-'.sha1($this->mutexName()).'.log'));
}
}
/**
* E-mail the output of the event to the recipients.
*
* @param \Illuminate\Contracts\Mail\Mailer $mailer
* @param array $addresses
* @param bool $onlyIfOutputExists
* @return void
*/
protected function emailOutput(Mailer $mailer, $addresses, $onlyIfOutputExists = false)
{
$text = file_exists($this->output) ? file_get_contents($this->output) : '';
if ($onlyIfOutputExists && empty($text)) {
return;
}
$mailer->raw($text, function ($m) use ($addresses) {
$m->to($addresses)->subject($this->getEmailSubject());
});
}
/**
* Get the e-mail subject line for output results.
*
* @return string
*/
protected function getEmailSubject()
{
if ($this->description) {
return $this->description;
}
return "Scheduled Job Output For [{$this->command}]";
}
/**
* Register a callback to ping a given URL before the job runs.
*
* @param string $url
* @return $this
*/
public function pingBefore($url)
{
return $this->before(function () use ($url) {
(new HttpClient)->get($url);
});
}
/**
* Register a callback to ping a given URL before the job runs if the given condition is true.
*
* @param bool $value
* @param string $url
* @return $this
*/
public function pingBeforeIf($value, $url)
{
return $value ? $this->pingBefore($url) : $this;
}
/**
* Register a callback to ping a given URL after the job runs.
*
* @param string $url
* @return $this
*/
public function thenPing($url)
{
return $this->then(function () use ($url) {
(new HttpClient)->get($url);
});
}
/**
* Register a callback to ping a given URL after the job runs if the given condition is true.
*
* @param bool $value
* @param string $url
* @return $this
*/
public function thenPingIf($value, $url)
{
return $value ? $this->thenPing($url) : $this;
}
/**
* State that the command should run in background.
*
* @return $this
*/
public function runInBackground()
{
$this->runInBackground = true;
return $this;
}
/**
* Set which user the command should run as.
*
* @param string $user
* @return $this
*/
public function user($user)
{
$this->user = $user;
return $this;
}
/**
* Limit the environments the command should run in.
*
* @param array|mixed $environments
* @return $this
*/
public function environments($environments)
{
$this->environments = is_array($environments) ? $environments : func_get_args();
return $this;
}
/**
* State that the command should run even in maintenance mode.
*
* @return $this
*/
public function evenInMaintenanceMode()
{
$this->evenInMaintenanceMode = true;
return $this;
}
/**
* Do not allow the event to overlap each other.
*
* @param int $expiresAt
* @return $this
*/
public function withoutOverlapping($expiresAt = 1440)
{
$this->withoutOverlapping = true;
$this->expiresAt = $expiresAt;
return $this->then(function () {
$this->mutex->forget($this);
})->skip(function () {
return $this->mutex->exists($this);
});
}
/**
* Allow the event to only run on one server for each cron expression.
*
* @return $this
*/
public function onOneServer()
{
$this->onOneServer = true;
return $this;
}
/**
* Register a callback to further filter the schedule.
*
* @param \Closure|bool $callback
* @return $this
*/
public function when($callback)
{
$this->filters[] = is_callable($callback) ? $callback : function () use ($callback) {
return $callback;
};
return $this;
}
/**
* Register a callback to further filter the schedule.
*
* @param \Closure|bool $callback
* @return $this
*/
public function skip($callback)
{
$this->rejects[] = is_callable($callback) ? $callback : function () use ($callback) {
return $callback;
};
return $this;
}
/**
* Register a callback to be called before the operation.
*
* @param \Closure $callback
* @return $this
*/
public function before(Closure $callback)
{
$this->beforeCallbacks[] = $callback;
return $this;
}
/**
* Register a callback to be called after the operation.
*
* @param \Closure $callback
* @return $this
*/
public function after(Closure $callback)
{
return $this->then($callback);
}
/**
* Register a callback to be called after the operation.
*
* @param \Closure $callback
* @return $this
*/
public function then(Closure $callback)
{
$this->afterCallbacks[] = $callback;
return $this;
}
/**
* Set the human-friendly description of the event.
*
* @param string $description
* @return $this
*/
public function name($description)
{
return $this->description($description);
}
/**
* Set the human-friendly description of the event.
*
* @param string $description
* @return $this
*/
public function description($description)
{
$this->description = $description;
return $this;
}
/**
* Get the summary of the event for display.
*
* @return string
*/
public function getSummaryForDisplay()
{
if (is_string($this->description)) {
return $this->description;
}
return $this->buildCommand();
}
/**
* Determine the next due date for an event.
*
* @param \DateTime|string $currentTime
* @param int $nth
* @param bool $allowCurrentDate
* @return \Illuminate\Support\Carbon
*/
public function nextRunDate($currentTime = 'now', $nth = 0, $allowCurrentDate = false)
{
return Carbon::instance(CronExpression::factory(
$this->getExpression()
)->getNextRunDate($currentTime, $nth, $allowCurrentDate, $this->timezone));
}
/**
* Get the Cron expression for the event.
*
* @return string
*/
public function getExpression()
{
return $this->expression;
}
/**
* Set the event mutex implementation to be used.
*
* @param \Illuminate\Console\Scheduling\EventMutex $mutex
* @return $this
*/
public function preventOverlapsUsing(EventMutex $mutex)
{
$this->mutex = $mutex;
return $this;
}
}