nextcloud /
server
| Total Complexity | 69 |
| Total Lines | 409 |
| Duplicated Lines | 0 % |
| Changes | 0 | ||
Complex classes like EmailProvider 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 EmailProvider, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 53 | class EmailProvider extends AbstractProvider { |
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| 54 | /** @var string */ |
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| 55 | public const NOTIFICATION_TYPE = 'EMAIL'; |
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| 56 | |||
| 57 | private IMailer $mailer; |
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| 58 | |||
| 59 | public function __construct(IConfig $config, |
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| 60 | IMailer $mailer, |
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| 61 | LoggerInterface $logger, |
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| 62 | L10NFactory $l10nFactory, |
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| 63 | IURLGenerator $urlGenerator) { |
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| 64 | parent::__construct($logger, $l10nFactory, $urlGenerator, $config); |
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| 65 | $this->mailer = $mailer; |
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| 66 | } |
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| 67 | |||
| 68 | /** |
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| 69 | * Send out notification via email |
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| 70 | * |
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| 71 | * @param VEvent $vevent |
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| 72 | * @param string $calendarDisplayName |
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| 73 | * @param string[] $principalEmailAddresses |
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| 74 | * @param array $users |
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| 75 | * @throws \Exception |
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| 76 | */ |
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| 77 | public function send(VEvent $vevent, |
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| 78 | string $calendarDisplayName, |
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| 79 | array $principalEmailAddresses, |
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| 80 | array $users = []):void { |
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| 81 | $fallbackLanguage = $this->getFallbackLanguage(); |
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| 82 | |||
| 83 | $organizerEmailAddress = null; |
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| 84 | if (isset($vevent->ORGANIZER)) { |
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| 85 | $organizerEmailAddress = $this->getEMailAddressOfAttendee($vevent->ORGANIZER); |
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| 86 | } |
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| 87 | |||
| 88 | $emailAddressesOfSharees = $this->getEMailAddressesOfAllUsersWithWriteAccessToCalendar($users); |
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| 89 | $emailAddressesOfAttendees = []; |
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| 90 | if (count($principalEmailAddresses) === 0 |
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| 91 | || ($organizerEmailAddress && in_array($organizerEmailAddress, $principalEmailAddresses, true)) |
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| 92 | ) { |
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| 93 | $emailAddressesOfAttendees = $this->getAllEMailAddressesFromEvent($vevent); |
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| 94 | } |
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| 95 | |||
| 96 | // Quote from php.net: |
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| 97 | // If the input arrays have the same string keys, then the later value for that key will overwrite the previous one. |
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| 98 | // => if there are duplicate email addresses, it will always take the system value |
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| 99 | $emailAddresses = array_merge( |
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| 100 | $emailAddressesOfAttendees, |
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| 101 | $emailAddressesOfSharees |
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| 102 | ); |
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| 103 | |||
| 104 | $sortedByLanguage = $this->sortEMailAddressesByLanguage($emailAddresses, $fallbackLanguage); |
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| 105 | $organizer = $this->getOrganizerEMailAndNameFromEvent($vevent); |
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| 106 | |||
| 107 | foreach ($sortedByLanguage as $lang => $emailAddresses) { |
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| 108 | if (!$this->hasL10NForLang($lang)) { |
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| 109 | $lang = $fallbackLanguage; |
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| 110 | } |
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| 111 | $l10n = $this->getL10NForLang($lang); |
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| 112 | $fromEMail = \OCP\Util::getDefaultEmailAddress('reminders-noreply'); |
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| 113 | |||
| 114 | $template = $this->mailer->createEMailTemplate('dav.calendarReminder'); |
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| 115 | $template->addHeader(); |
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| 116 | $this->addSubjectAndHeading($template, $l10n, $vevent); |
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| 117 | $this->addBulletList($template, $l10n, $calendarDisplayName, $vevent); |
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| 118 | $template->addFooter(); |
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| 119 | |||
| 120 | foreach ($emailAddresses as $emailAddress) { |
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| 121 | if (!$this->mailer->validateMailAddress($emailAddress)) { |
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| 122 | $this->logger->error('Email address {address} for reminder notification is incorrect', ['app' => 'dav', 'address' => $emailAddress]); |
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| 123 | continue; |
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| 124 | } |
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| 125 | |||
| 126 | $message = $this->mailer->createMessage(); |
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| 127 | $message->setFrom([$fromEMail]); |
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| 128 | if ($organizer) { |
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| 129 | $message->setReplyTo($organizer); |
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| 130 | } |
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| 131 | $message->setTo([$emailAddress]); |
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| 132 | $message->useTemplate($template); |
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| 133 | |||
| 134 | try { |
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| 135 | $failed = $this->mailer->send($message); |
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| 136 | if ($failed) { |
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| 137 | $this->logger->error('Unable to deliver message to {failed}', ['app' => 'dav', 'failed' => implode(', ', $failed)]); |
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| 138 | } |
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| 139 | } catch (\Exception $ex) { |
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| 140 | $this->logger->error($ex->getMessage(), ['app' => 'dav', 'exception' => $ex]); |
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| 141 | } |
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| 142 | } |
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| 143 | } |
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| 144 | } |
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| 145 | |||
| 146 | /** |
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| 147 | * @param IEMailTemplate $template |
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| 148 | * @param IL10N $l10n |
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| 149 | * @param VEvent $vevent |
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| 150 | */ |
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| 151 | private function addSubjectAndHeading(IEMailTemplate $template, IL10N $l10n, VEvent $vevent):void { |
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| 152 | $template->setSubject('Notification: ' . $this->getTitleFromVEvent($vevent, $l10n)); |
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| 153 | $template->addHeading($this->getTitleFromVEvent($vevent, $l10n)); |
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| 154 | } |
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| 155 | |||
| 156 | /** |
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| 157 | * @param IEMailTemplate $template |
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| 158 | * @param IL10N $l10n |
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| 159 | * @param string $calendarDisplayName |
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| 160 | * @param array $eventData |
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| 161 | */ |
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| 162 | private function addBulletList(IEMailTemplate $template, |
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| 163 | IL10N $l10n, |
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| 164 | string $calendarDisplayName, |
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| 165 | VEvent $vevent):void { |
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| 166 | $template->addBodyListItem($calendarDisplayName, $l10n->t('Calendar:'), |
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| 167 | $this->getAbsoluteImagePath('actions/info.png')); |
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| 168 | |||
| 169 | $template->addBodyListItem($this->generateDateString($l10n, $vevent), $l10n->t('Date:'), |
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| 170 | $this->getAbsoluteImagePath('places/calendar.png')); |
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| 171 | |||
| 172 | if (isset($vevent->LOCATION)) { |
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| 173 | $template->addBodyListItem((string) $vevent->LOCATION, $l10n->t('Where:'), |
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| 174 | $this->getAbsoluteImagePath('actions/address.png')); |
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| 175 | } |
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| 176 | if (isset($vevent->DESCRIPTION)) { |
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| 177 | $template->addBodyListItem((string) $vevent->DESCRIPTION, $l10n->t('Description:'), |
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| 178 | $this->getAbsoluteImagePath('actions/more.png')); |
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| 179 | } |
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| 180 | } |
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| 181 | |||
| 182 | private function getAbsoluteImagePath(string $path):string { |
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| 183 | return $this->urlGenerator->getAbsoluteURL( |
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| 184 | $this->urlGenerator->imagePath('core', $path) |
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| 185 | ); |
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| 186 | } |
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| 187 | |||
| 188 | /** |
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| 189 | * @param VEvent $vevent |
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| 190 | * @return array|null |
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| 191 | */ |
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| 192 | private function getOrganizerEMailAndNameFromEvent(VEvent $vevent):?array { |
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| 193 | if (!$vevent->ORGANIZER) { |
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| 194 | return null; |
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| 195 | } |
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| 196 | |||
| 197 | $organizer = $vevent->ORGANIZER; |
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| 198 | if (strcasecmp($organizer->getValue(), 'mailto:') !== 0) { |
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| 199 | return null; |
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| 200 | } |
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| 201 | |||
| 202 | $organizerEMail = substr($organizer->getValue(), 7); |
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| 203 | |||
| 204 | if (!$this->mailer->validateMailAddress($organizerEMail)) { |
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| 205 | return null; |
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| 206 | } |
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| 207 | |||
| 208 | $name = $organizer->offsetGet('CN'); |
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| 209 | if ($name instanceof Parameter) { |
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| 210 | return [$organizerEMail => $name]; |
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| 211 | } |
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| 212 | |||
| 213 | return [$organizerEMail]; |
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| 214 | } |
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| 215 | |||
| 216 | /** |
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| 217 | * @param array<string, array{LANG?: string}> $emails |
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| 218 | * @return array<string, string[]> |
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| 219 | */ |
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| 220 | private function sortEMailAddressesByLanguage(array $emails, |
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| 221 | string $defaultLanguage):array { |
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| 222 | $sortedByLanguage = []; |
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| 223 | |||
| 224 | foreach ($emails as $emailAddress => $parameters) { |
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| 225 | if (isset($parameters['LANG'])) { |
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| 226 | $lang = $parameters['LANG']; |
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| 227 | } else { |
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| 228 | $lang = $defaultLanguage; |
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| 229 | } |
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| 230 | |||
| 231 | if (!isset($sortedByLanguage[$lang])) { |
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| 232 | $sortedByLanguage[$lang] = []; |
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| 233 | } |
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| 234 | |||
| 235 | $sortedByLanguage[$lang][] = $emailAddress; |
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| 236 | } |
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| 237 | |||
| 238 | return $sortedByLanguage; |
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| 239 | } |
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| 240 | |||
| 241 | /** |
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| 242 | * @param VEvent $vevent |
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| 243 | * @return array<string, array{LANG?: string}> |
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| 244 | */ |
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| 245 | private function getAllEMailAddressesFromEvent(VEvent $vevent):array { |
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| 246 | $emailAddresses = []; |
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| 247 | |||
| 248 | if (isset($vevent->ATTENDEE)) { |
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| 249 | foreach ($vevent->ATTENDEE as $attendee) { |
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| 250 | if (!($attendee instanceof VObject\Property)) { |
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| 251 | continue; |
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| 252 | } |
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| 253 | |||
| 254 | $cuType = $this->getCUTypeOfAttendee($attendee); |
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| 255 | if (\in_array($cuType, ['RESOURCE', 'ROOM', 'UNKNOWN'])) { |
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| 256 | // Don't send emails to things |
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| 257 | continue; |
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| 258 | } |
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| 259 | |||
| 260 | $partstat = $this->getPartstatOfAttendee($attendee); |
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| 261 | if ($partstat === 'DECLINED') { |
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| 262 | // Don't send out emails to people who declined |
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| 263 | continue; |
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| 264 | } |
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| 265 | if ($partstat === 'DELEGATED') { |
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| 266 | $delegates = $attendee->offsetGet('DELEGATED-TO'); |
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| 267 | if (!($delegates instanceof VObject\Parameter)) { |
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| 268 | continue; |
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| 269 | } |
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| 270 | |||
| 271 | $emailAddressesOfDelegates = $delegates->getParts(); |
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| 272 | foreach ($emailAddressesOfDelegates as $addressesOfDelegate) { |
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| 273 | if (strcasecmp($addressesOfDelegate, 'mailto:') === 0) { |
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| 274 | $delegateEmail = substr($addressesOfDelegate, 7); |
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| 275 | if ($this->mailer->validateMailAddress($delegateEmail)) { |
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| 276 | $emailAddresses[$delegateEmail] = []; |
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| 277 | } |
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| 278 | } |
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| 279 | } |
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| 280 | |||
| 281 | continue; |
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| 282 | } |
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| 283 | |||
| 284 | $emailAddressOfAttendee = $this->getEMailAddressOfAttendee($attendee); |
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| 285 | if ($emailAddressOfAttendee !== null) { |
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| 286 | $properties = []; |
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| 287 | |||
| 288 | $langProp = $attendee->offsetGet('LANG'); |
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| 289 | if ($langProp instanceof VObject\Parameter && $langProp->getValue() !== null) { |
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| 290 | $properties['LANG'] = $langProp->getValue(); |
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| 291 | } |
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| 292 | |||
| 293 | $emailAddresses[$emailAddressOfAttendee] = $properties; |
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| 294 | } |
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| 295 | } |
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| 296 | } |
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| 297 | |||
| 298 | if (isset($vevent->ORGANIZER) && $this->hasAttendeeMailURI($vevent->ORGANIZER)) { |
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| 299 | $organizerEmailAddress = $this->getEMailAddressOfAttendee($vevent->ORGANIZER); |
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| 300 | if ($organizerEmailAddress !== null) { |
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| 301 | $emailAddresses[$organizerEmailAddress] = []; |
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| 302 | } |
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| 303 | } |
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| 304 | |||
| 305 | return $emailAddresses; |
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| 306 | } |
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| 307 | |||
| 308 | private function getCUTypeOfAttendee(VObject\Property $attendee):string { |
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| 309 | $cuType = $attendee->offsetGet('CUTYPE'); |
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| 310 | if ($cuType instanceof VObject\Parameter) { |
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| 311 | return strtoupper($cuType->getValue()); |
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| 312 | } |
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| 313 | |||
| 314 | return 'INDIVIDUAL'; |
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| 315 | } |
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| 316 | |||
| 317 | private function getPartstatOfAttendee(VObject\Property $attendee):string { |
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| 318 | $partstat = $attendee->offsetGet('PARTSTAT'); |
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| 319 | if ($partstat instanceof VObject\Parameter) { |
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| 320 | return strtoupper($partstat->getValue()); |
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| 321 | } |
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| 322 | |||
| 323 | return 'NEEDS-ACTION'; |
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| 324 | } |
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| 325 | |||
| 326 | private function hasAttendeeMailURI(VObject\Property $attendee): bool { |
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| 328 | } |
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| 329 | |||
| 330 | private function getEMailAddressOfAttendee(VObject\Property $attendee): ?string { |
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| 331 | if (!$this->hasAttendeeMailURI($attendee)) { |
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| 332 | return null; |
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| 333 | } |
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| 334 | $attendeeEMail = substr($attendee->getValue(), 7); |
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| 335 | if (!$this->mailer->validateMailAddress($attendeeEMail)) { |
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| 336 | return null; |
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| 337 | } |
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| 338 | |||
| 339 | return $attendeeEMail; |
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| 340 | } |
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| 341 | |||
| 342 | /** |
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| 343 | * @param IUser[] $users |
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| 344 | * @return array<string, array{LANG?: string}> |
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| 345 | */ |
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| 346 | private function getEMailAddressesOfAllUsersWithWriteAccessToCalendar(array $users):array { |
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| 364 | } |
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| 365 | |||
| 366 | /** |
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| 367 | * @throws \Exception |
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| 368 | */ |
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| 369 | private function generateDateString(IL10N $l10n, VEvent $vevent): string { |
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| 433 | } |
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| 434 | |||
| 435 | private function isDayEqual(DateTime $dtStart, |
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| 436 | DateTime $dtEnd):bool { |
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| 437 | return $dtStart->format('Y-m-d') === $dtEnd->format('Y-m-d'); |
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| 438 | } |
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| 439 | |||
| 440 | private function getWeekDayName(IL10N $l10n, DateTime $dt):string { |
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| 442 | } |
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| 443 | |||
| 444 | private function getDateString(IL10N $l10n, DateTime $dt):string { |
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| 445 | return (string)$l10n->l('date', $dt, ['width' => 'medium']); |
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| 446 | } |
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| 447 | |||
| 448 | private function getDateTimeString(IL10N $l10n, DateTime $dt):string { |
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| 449 | return (string)$l10n->l('datetime', $dt, ['width' => 'medium|short']); |
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| 450 | } |
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| 451 | |||
| 452 | private function getTimeString(IL10N $l10n, DateTime $dt):string { |
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| 454 | } |
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| 455 | |||
| 456 | private function getTitleFromVEvent(VEvent $vevent, IL10N $l10n):string { |
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| 462 | } |
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| 463 | } |
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| 464 |
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This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.