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- # Copyright (C) 2012-2022 Zammad Foundation, https://zammad-foundation.org/
- class EmailHelper
- =begin
- get available driver
- result = EmailHelper.available_driver
- returns
- {
- inbound: {
- imap: 'IMAP',
- pop3: 'POP3',
- },
- outbound: {
- smtp: 'SMTP - configure your own outgoing SMTP settings',
- sendmail: 'Local MTA (Sendmail/Postfix/Exim/...) - use server setup',
- },
- }
- =end
- def self.available_driver
- if Setting.get('system_online_service')
- return {
- inbound: {
- imap: __('IMAP'),
- pop3: __('POP3'),
- },
- outbound: {
- smtp: __('SMTP - configure your own outgoing SMTP settings'),
- },
- }
- end
- {
- inbound: {
- imap: __('IMAP'),
- pop3: __('POP3'),
- },
- outbound: {
- smtp: __('SMTP - configure your own outgoing SMTP settings'),
- sendmail: __('Local MTA (Sendmail/Postfix/Exim/…) - use server setup'),
- },
- }
- end
- =begin
- get mail parts
- user, domain = EmailHelper.parse_email('somebody@example.com')
- returns
- [user, domain]
- =end
- def self.parse_email(email)
- user = nil
- domain = nil
- if email =~ %r{^(.+?)@(.+?)$}
- user = $1
- domain = $2
- end
- [user, domain]
- end
- =begin
- get list of providers with inbound and outbound settings
- map = EmailHelper.provider(email, password)
- returns
- {
- google: {
- domain: 'gmail.com|googlemail.com|gmail.de',
- inbound: {
- adapter: 'imap',
- options: {
- host: 'imap.gmail.com',
- port: 993,
- ssl: true,
- user: email,
- password: password,
- },
- },
- outbound: {
- adapter: 'smtp',
- options: {
- host: 'smtp.gmail.com',
- port: 25,
- start_tls: true,
- user: email,
- password: password,
- }
- },
- },
- ...
- }
- =end
- def self.provider(email, password)
- # check domain based attributes
- {
- google_imap: {
- domain: 'gmail|googlemail|google',
- inbound: {
- adapter: 'imap',
- options: {
- host: 'imap.gmail.com',
- port: 993,
- ssl: true,
- user: email,
- password: password,
- },
- },
- outbound: {
- adapter: 'smtp',
- options: {
- host: 'smtp.gmail.com',
- port: 587,
- start_tls: true,
- user: email,
- password: password,
- }
- },
- },
- microsoft: {
- domain: 'outlook.com|hotmail.com',
- inbound: {
- adapter: 'imap',
- options: {
- host: 'imap-mail.outlook.com',
- port: 993,
- ssl: true,
- user: email,
- password: password,
- },
- },
- outbound: {
- adapter: 'smtp',
- options: {
- host: 'smtp-mail.outlook.com',
- port: 587,
- start_tls: true,
- user: email,
- password: password,
- }
- },
- },
- google_pop3: {
- domain: 'gmail|googlemail|google',
- inbound: {
- adapter: 'pop3',
- options: {
- host: 'pop.gmail.com',
- port: 995,
- ssl: true,
- user: email,
- password: password,
- },
- },
- outbound: {
- adapter: 'smtp',
- options: {
- host: 'smtp.gmail.com',
- port: 587,
- start_tls: true,
- user: email,
- password: password,
- }
- },
- },
- }
- end
- =begin
- get possible inbound settings based on mx
- map = EmailHelper.provider_inbound_mx(user, email, password, mx_domains)
- returns
- {
- adapter: 'imap',
- options: {
- host: mx_domains[0],
- port: 993,
- ssl: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'imap',
- options: {
- host: mx_domains[0],
- port: 993,
- ssl: true,
- user: email,
- password: password,
- },
- },
- =end
- def self.provider_inbound_mx(user, email, password, mx_domains)
- inbounds = []
- mx_domains.each do |domain|
- inbound = [
- {
- adapter: 'imap',
- options: {
- host: domain,
- port: 993,
- ssl: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'imap',
- options: {
- host: domain,
- port: 993,
- ssl: true,
- user: email,
- password: password,
- },
- },
- ]
- inbounds.concat(inbound)
- end
- inbounds
- end
- =begin
- get possible inbound settings based on guess
- map = EmailHelper.provider_inbound_guess(user, email, password, domain)
- returns
- {
- adapter: 'imap',
- options: {
- host: "mail.#{domain}",
- port: 993,
- ssl: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'imap',
- options: {
- host: "mail.#{domain}",
- port: 993,
- ssl: true,
- user: email,
- password: password,
- },
- },
- ...
- =end
- def self.provider_inbound_guess(user, email, password, domain)
- [
- {
- adapter: 'imap',
- options: {
- host: "mail.#{domain}",
- port: 993,
- ssl: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'imap',
- options: {
- host: "mail.#{domain}",
- port: 993,
- ssl: true,
- user: email,
- password: password,
- },
- },
- {
- adapter: 'imap',
- options: {
- host: "imap.#{domain}",
- port: 993,
- ssl: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'imap',
- options: {
- host: "imap.#{domain}",
- port: 993,
- ssl: true,
- user: email,
- password: password,
- },
- },
- {
- adapter: 'pop3',
- options: {
- host: "mail.#{domain}",
- port: 995,
- ssl: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'pop3',
- options: {
- host: "mail.#{domain}",
- port: 995,
- ssl: true,
- user: email,
- password: password,
- },
- },
- {
- adapter: 'pop3',
- options: {
- host: "pop.#{domain}",
- port: 995,
- ssl: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'pop3',
- options: {
- host: "pop.#{domain}",
- port: 995,
- ssl: true,
- user: email,
- password: password,
- },
- },
- {
- adapter: 'pop3',
- options: {
- host: "pop3.#{domain}",
- port: 995,
- ssl: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'pop3',
- options: {
- host: "pop3.#{domain}",
- port: 995,
- ssl: true,
- user: email,
- password: password,
- },
- },
- ]
- end
- =begin
- get possible outbound settings based on mx
- map = EmailHelper.provider_outbound_mx(user, email, password, mx_domains)
- returns
- {
- adapter: 'smtp',
- options: {
- host: domain,
- port: 25,
- start_tls: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: domain,
- port: 25,
- start_tls: true,
- user: email,
- password: password,
- },
- },
- =end
- def self.provider_outbound_mx(user, email, password, mx_domains)
- outbounds = []
- mx_domains.each do |domain|
- outbound = [
- {
- adapter: 'smtp',
- options: {
- host: domain,
- port: 465,
- start_tls: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: domain,
- port: 465,
- start_tls: true,
- user: email,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: domain,
- port: 587,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: domain,
- port: 587,
- user: email,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: domain,
- port: 25,
- start_tls: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: domain,
- port: 25,
- start_tls: true,
- user: email,
- password: password,
- },
- },
- ]
- outbounds.concat(outbound)
- end
- outbounds
- end
- =begin
- get possible outbound settings based on guess
- map = EmailHelper.provider_outbound_guess(user, email, password, domain)
- returns
- {
- adapter: 'imap',
- options: {
- host: "mail.#{domain}",
- port: 993,
- ssl: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'imap',
- options: {
- host: "mail.#{domain}",
- port: 993,
- ssl: true,
- user: email,
- password: password,
- },
- },
- ...
- =end
- def self.provider_outbound_guess(user, email, password, domain)
- [
- {
- adapter: 'smtp',
- options: {
- host: "mail.#{domain}",
- port: 465,
- start_tls: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: "mail.#{domain}",
- port: 465,
- start_tls: true,
- user: email,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: "smtp.#{domain}",
- port: 465,
- start_tls: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: "smtp.#{domain}",
- port: 465,
- start_tls: true,
- user: email,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: "mail.#{domain}",
- port: 587,
- start_tls: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: "mail.#{domain}",
- port: 587,
- start_tls: true,
- user: email,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: "smtp.#{domain}",
- port: 587,
- start_tls: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: "smtp.#{domain}",
- port: 587,
- start_tls: true,
- user: email,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: "mail.#{domain}",
- port: 25,
- start_tls: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: "mail.#{domain}",
- port: 25,
- start_tls: true,
- user: email,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: "smtp.#{domain}",
- port: 25,
- start_tls: true,
- user: user,
- password: password,
- },
- },
- {
- adapter: 'smtp',
- options: {
- host: "smtp.#{domain}",
- port: 25,
- start_tls: true,
- user: email,
- password: password,
- },
- },
- ]
- end
- =begin
- get dns mx records of domain
- mx_records = EmailHelper.mx_records('example.com')
- returns
- ['mx1.example.com', 'mx2.example.com']
- =end
- def self.mx_records(domain)
- mail_exchangers = mxers(domain)
- if mail_exchangers && mail_exchangers[0]
- Rails.logger.info "MX for #{domain}: #{mail_exchangers} - #{mail_exchangers[0][0]}"
- end
- mx_records = []
- if mail_exchangers && mail_exchangers[0] && mail_exchangers[0][0]
- mx_records.push mail_exchangers[0][0]
- end
- mx_records
- end
- def self.mxers(domain)
- begin
- mxs = Resolv::DNS.open do |dns|
- ress = dns.getresources(domain, Resolv::DNS::Resource::IN::MX)
- ress.map do |r|
- [r.exchange.to_s, IPSocket.getaddress(r.exchange.to_s), r.preference]
- end
- end
- rescue => e
- Rails.logger.error e
- end
- mxs
- end
- end
|