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{ Meteor } from 'meteor/meteor';\nimport { Log } from 'meteor/logging';\nimport { Hook } from 'meteor/callback-hook';\n\nimport Future from 'fibers/future';\nimport url from 'url';\nimport nodemailer from 'nodemailer';\nimport wellKnow from 'nodemailer/lib/well-known';\n\nexport const Email = {};\nexport const EmailTest = {};\n\nexport const EmailInternals = {\n  NpmModules: {\n    mailcomposer: {\n      version: Npm.require('nodemailer/package.json').version,\n      module: Npm.require('nodemailer/lib/mail-composer'),\n    },\n    nodemailer: {\n      version: Npm.require('nodemailer/package.json').version,\n      module: Npm.require('nodemailer'),\n    },\n  },\n};\n\nconst MailComposer = EmailInternals.NpmModules.mailcomposer.module;\n\nconst makeTransport = function(mailUrlString) {\n  const mailUrl = new URL(mailUrlString);\n\n  if (mailUrl.protocol !== 'smtp:' && mailUrl.protocol !== 'smtps:') {\n    throw new Error(\n      'Email protocol in $MAIL_URL (' +\n        mailUrlString +\n        \") must be 'smtp' or 'smtps'\"\n    );\n  }\n\n  if (mailUrl.protocol === 'smtp:' && mailUrl.port === '465') {\n    Log.debug(\n      \"The $MAIL_URL is 'smtp://...:465'.  \" +\n        \"You probably want 'smtps://' (The 's' enables TLS/SSL) \" +\n        \"since '465' is typically a secure port.\"\n    );\n  }\n\n  // Allow overriding pool setting, but default to true.\n  if (!mailUrl.query) {\n    mailUrl.query = {};\n  }\n\n  if (!mailUrl.query.pool) {\n    mailUrl.query.pool = 'true';\n  }\n\n  const transport = nodemailer.createTransport(url.format(mailUrl));\n\n  transport._syncSendMail = Meteor.wrapAsync(transport.sendMail, transport);\n  return transport;\n};\n\n// More info: https://nodemailer.com/smtp/well-known/\nconst knownHostsTransport = function(settings = undefined, url = undefined) {\n  let service, user, password;\n\n  const hasSettings = settings && Object.keys(settings).length;\n\n  if (url && !hasSettings) {\n    let host = url.split(':')[0];\n    const urlObject = new URL(url);\n    if (host === 'http' || host === 'https') {\n      // Look to hostname for service\n      host = urlObject.hostname;\n      user = urlObject.username;\n      password = urlObject.password;\n    } else if (urlObject.protocol && urlObject.username && urlObject.password) {\n      // We have some data from urlObject\n      host = urlObject.protocol.split(':')[0];\n      user = urlObject.username;\n      password = urlObject.password;\n    } else {\n      // We need to disect the URL ourselves to get the data\n      // First get rid of the leading '//' and split to username and the rest\n      const temp = urlObject.pathname.substring(2)?.split(':');\n      user = temp[0];\n      // Now we split by '@' to get password and hostname\n      const temp2 = temp[1].split('@');\n      password = temp2[0];\n      host = temp2[1];\n    }\n    service = host;\n  }\n\n  if (!wellKnow(settings?.service || service)) {\n    throw new Error(\n      'Could not recognize e-mail service. See list at https://nodemailer.com/smtp/well-known/ for services that we can configure for you.'\n    );\n  }\n\n  const transport = nodemailer.createTransport({\n    service: settings?.service || service,\n    auth: {\n      user: settings?.user || user,\n      pass: settings?.password || password,\n    },\n  });\n\n  transport._syncSendMail = Meteor.wrapAsync(transport.sendMail, transport);\n  return transport;\n};\nEmailTest.knowHostsTransport = knownHostsTransport;\n\nconst getTransport = function() {\n  const packageSettings = Meteor.settings.packages?.email || {};\n  // We delay this check until the first call to Email.send, in case someone\n  // set process.env.MAIL_URL in startup code. Then we store in a cache until\n  // process.env.MAIL_URL changes.\n  const url = process.env.MAIL_URL;\n  if (\n    this.cacheKey === undefined ||\n    this.cacheKey !== url ||\n    this.cacheKey !== packageSettings.service ||\n    this.cacheKey !== 'settings'\n  ) {\n    if (\n      (packageSettings.service && wellKnow(packageSettings.service)) ||\n      (url && wellKnow(new URL(url).hostname)) ||\n      wellKnow(url?.split(':')[0] || '')\n    ) {\n      this.cacheKey = packageSettings.service || 'settings';\n      this.cache = knownHostsTransport(packageSettings, url);\n    } else {\n      this.cacheKey = url;\n      this.cache = url ? makeTransport(url, packageSettings) : null;\n    }\n  }\n  return this.cache;\n};\n\nlet nextDevModeMailId = 0;\nlet output_stream = process.stdout;\n\n// Testing hooks\nEmailTest.overrideOutputStream = function(stream) {\n  nextDevModeMailId = 0;\n  output_stream = stream;\n};\n\nEmailTest.restoreOutputStream = function() {\n  output_stream = process.stdout;\n};\n\nconst devModeSend = function(mail) {\n  let devModeMailId = nextDevModeMailId++;\n\n  const stream = output_stream;\n\n  // This approach does not prevent other writers to stdout from interleaving.\n  stream.write('====== BEGIN MAIL #' + devModeMailId + ' ======\\n');\n  stream.write(\n    '(Mail not sent; to enable sending, set the MAIL_URL ' +\n      'environment variable.)\\n'\n  );\n  const readStream = new MailComposer(mail).compile().createReadStream();\n  readStream.pipe(stream, { end: false });\n  const future = new Future();\n  readStream.on('end', function() {\n    stream.write('====== END MAIL #' + devModeMailId + ' ======\\n');\n    future.return();\n  });\n  future.wait();\n};\n\nconst smtpSend = function(transport, mail) {\n  transport._syncSendMail(mail);\n};\n\nconst sendHooks = new Hook();\n\n/**\n * @summary Hook that runs before email is sent.\n * @locus Server\n *\n * @param f {function} receives the arguments to Email.send and should return true to go\n * ahead and send the email (or at least, try subsequent hooks), or\n * false to skip sending.\n * @returns {{ stop: function, callback: function }}\n */\nEmail.hookSend = function(f) {\n  return sendHooks.register(f);\n};\n\n/**\n * @summary Overrides sending function with your own.\n * @locus Server\n * @since 2.2\n * @param f {function} function that will receive options from the send function and under `packageSettings` will\n * include the package settings from Meteor.settings.packages.email for your custom transport to access.\n */\nEmail.customTransport = undefined;\n\n/**\n * @summary Send an email. Throws an `Error` on failure to contact mail server\n * or if mail server returns an error. All fields should match\n * [RFC5322](http://tools.ietf.org/html/rfc5322) specification.\n *\n * If the `MAIL_URL` environment variable is set, actually sends the email.\n * Otherwise, prints the contents of the email to standard out.\n *\n * Note that this package is based on **nodemailer**, so make sure to refer to\n * [the documentation](http://nodemailer.com/)\n * when using the `attachments` or `mailComposer` options.\n *\n * @locus Server\n * @param {Object} options\n * @param {String} [options.from] \"From:\" address (required)\n * @param {String|String[]} options.to,cc,bcc,replyTo\n *   \"To:\", \"Cc:\", \"Bcc:\", and \"Reply-To:\" addresses\n * @param {String} [options.inReplyTo] Message-ID this message is replying to\n * @param {String|String[]} [options.references] Array (or space-separated string) of Message-IDs to refer to\n * @param {String} [options.messageId] Message-ID for this message; otherwise, will be set to a random value\n * @param {String} [options.subject]  \"Subject:\" line\n * @param {String} [options.text|html] Mail body (in plain text and/or HTML)\n * @param {String} [options.watchHtml] Mail body in HTML specific for Apple Watch\n * @param {String} [options.icalEvent] iCalendar event attachment\n * @param {Object} [options.headers] Dictionary of custom headers - e.g. `{ \"header name\": \"header value\" }`. To set an object under a header name, use `JSON.stringify` - e.g. `{ \"header name\": JSON.stringify({ tracking: { level: 'full' } }) }`.\n * @param {Object[]} [options.attachments] Array of attachment objects, as\n * described in the [nodemailer documentation](https://nodemailer.com/message/attachments/).\n * @param {MailComposer} [options.mailComposer] A [MailComposer](https://nodemailer.com/extras/mailcomposer/#e-mail-message-fields)\n * object representing the message to be sent.  Overrides all other options.\n * You can create a `MailComposer` object via\n * `new EmailInternals.NpmModules.mailcomposer.module`.\n */\nEmail.send = function(options) {\n  if (options.mailComposer) {\n    options = options.mailComposer.mail;\n  }\n\n  let send = true;\n  sendHooks.forEach(hook => {\n    send = hook(options);\n    return send;\n  });\n  if (!send) return;\n\n  const customTransport = Email.customTransport;\n  if (customTransport) {\n    const packageSettings = Meteor.settings.packages?.email || {};\n    customTransport({ packageSettings, ...options });\n    return;\n  }\n\n  const mailUrlEnv = process.env.MAIL_URL;\n  const mailUrlSettings = Meteor.settings.packages?.email;\n\n  if (Meteor.isProduction && !mailUrlEnv && !mailUrlSettings) {\n    // This check is mostly necessary when using the flag --production when running locally.\n    // And it works as a reminder to properly set the mail URL when running locally.\n    throw new Error(\n      'You have not provided a mail URL. You can provide it by using the environment variable MAIL_URL or your settings. You can read more about it here: https://docs.meteor.com/api/email.html.'\n    );\n  }\n\n  if (mailUrlEnv || mailUrlSettings) {\n    const transport = getTransport();\n    smtpSend(transport, options);\n    return;\n  }\n  devModeSend(options);\n};\n"]}