Chris@0: #!/usr/bin/env ruby
Chris@0: 
Chris@0: require 'net/http'
Chris@0: require 'net/https'
Chris@0: require 'uri'
Chris@1115: require 'optparse'
Chris@0: 
Chris@0: module Net
Chris@0:   class HTTPS < HTTP
Chris@909:     def self.post_form(url, params, headers, options={})
Chris@0:       request = Post.new(url.path)
Chris@0:       request.form_data = params
Chris@1294:       request.initialize_http_header(headers)
Chris@0:       request.basic_auth url.user, url.password if url.user
Chris@0:       http = new(url.host, url.port)
Chris@0:       http.use_ssl = (url.scheme == 'https')
Chris@909:       if options[:no_check_certificate]
Chris@909:         http.verify_mode = OpenSSL::SSL::VERIFY_NONE
Chris@909:       end
Chris@0:       http.start {|h| h.request(request) }
Chris@0:     end
Chris@0:   end
Chris@0: end
Chris@0: 
Chris@0: class RedmineMailHandler
Chris@1294:   VERSION = '0.2.1'
Chris@1115: 
Chris@909:   attr_accessor :verbose, :issue_attributes, :allow_override, :unknown_user, :no_permission_check, :url, :key, :no_check_certificate
Chris@0: 
Chris@0:   def initialize
Chris@0:     self.issue_attributes = {}
Chris@0: 
Chris@1115:     optparse = OptionParser.new do |opts|
Chris@1115:       opts.banner = "Usage: rdm-mailhandler.rb [options] --url=<Redmine URL> --key=<API key>"
Chris@1115:       opts.separator("")
Chris@1115:       opts.separator("Reads an email from standard input and forward it to a Redmine server through a HTTP request.")
Chris@1115:       opts.separator("")
Chris@1115:       opts.separator("Required arguments:")
Chris@1115:       opts.on("-u", "--url URL",              "URL of the Redmine server") {|v| self.url = v}
Chris@1115:       opts.on("-k", "--key KEY",              "Redmine API key") {|v| self.key = v}
Chris@1115:       opts.separator("")
Chris@1115:       opts.separator("General options:")
Chris@1115:       opts.on("--unknown-user ACTION",        "how to handle emails from an unknown user",
Chris@1115:                                               "ACTION can be one of the following values:",
Chris@1115:                                               "* ignore: email is ignored (default)",
Chris@1115:                                               "* accept: accept as anonymous user",
Chris@1115:                                               "* create: create a user account") {|v| self.unknown_user = v}
Chris@1115:       opts.on("--no-permission-check",        "disable permission checking when receiving",
Chris@1115:                                               "the email") {self.no_permission_check = '1'}
Chris@1115:       opts.on("--key-file FILE",              "path to a file that contains the Redmine",
Chris@1115:                                               "API key (use this option instead of --key",
Chris@1115:                                               "if you don't the key to appear in the",
Chris@1115:                                               "command line)") {|v| read_key_from_file(v)}
Chris@1115:       opts.on("--no-check-certificate",       "do not check server certificate") {self.no_check_certificate = true}
Chris@1115:       opts.on("-h", "--help",                 "show this help") {puts opts; exit 1}
Chris@1115:       opts.on("-v", "--verbose",              "show extra information") {self.verbose = true}
Chris@1115:       opts.on("-V", "--version",              "show version information and exit") {puts VERSION; exit}
Chris@1115:       opts.separator("")
Chris@1115:       opts.separator("Issue attributes control options:")
Chris@1115:       opts.on("-p", "--project PROJECT",      "identifier of the target project") {|v| self.issue_attributes['project'] = v}
Chris@1115:       opts.on("-s", "--status STATUS",        "name of the target status") {|v| self.issue_attributes['status'] = v}
Chris@1115:       opts.on("-t", "--tracker TRACKER",      "name of the target tracker") {|v| self.issue_attributes['tracker'] = v}
Chris@1115:       opts.on(      "--category CATEGORY",    "name of the target category") {|v| self.issue_attributes['category'] = v}
Chris@1115:       opts.on(      "--priority PRIORITY",    "name of the target priority") {|v| self.issue_attributes['priority'] = v}
Chris@1115:       opts.on("-o", "--allow-override ATTRS", "allow email content to override attributes",
Chris@1115:                                               "specified by previous options",
Chris@1115:                                               "ATTRS is a comma separated list of attributes") {|v| self.allow_override = v}
Chris@1115:       opts.separator("")
Chris@1115:       opts.separator("Examples:")
Chris@1115:       opts.separator("No project specified. Emails MUST contain the 'Project' keyword:")
Chris@1115:       opts.separator("  rdm-mailhandler.rb --url http://redmine.domain.foo --key secret")
Chris@1115:       opts.separator("")
Chris@1115:       opts.separator("Fixed project and default tracker specified, but emails can override")
Chris@1115:       opts.separator("both tracker and priority attributes using keywords:")
Chris@1115:       opts.separator("  rdm-mailhandler.rb --url https://domain.foo/redmine --key secret \\")
Chris@1115:       opts.separator("    --project foo \\")
Chris@1115:       opts.separator("    --tracker bug \\")
Chris@1115:       opts.separator("    --allow-override tracker,priority")
Chris@1115: 
Chris@1115:       opts.summary_width = 27
Chris@0:     end
Chris@1115:     optparse.parse!
Chris@1115: 
Chris@1115:     unless url && key
Chris@1115:       puts "Some arguments are missing. Use `rdm-mailhandler.rb --help` for getting help."
Chris@1115:       exit 1
Chris@1115:     end
Chris@0:   end
Chris@1115: 
Chris@0:   def submit(email)
Chris@0:     uri = url.gsub(%r{/*$}, '') + '/mail_handler'
Chris@1115: 
Chris@128:     headers = { 'User-Agent' => "Redmine mail handler/#{VERSION}" }
Chris@1115: 
Chris@1115:     data = { 'key' => key, 'email' => email,
Chris@0:                            'allow_override' => allow_override,
Chris@0:                            'unknown_user' => unknown_user,
Chris@0:                            'no_permission_check' => no_permission_check}
Chris@0:     issue_attributes.each { |attr, value| data["issue[#{attr}]"] = value }
Chris@1115: 
Chris@0:     debug "Posting to #{uri}..."
Chris@909:     response = Net::HTTPS.post_form(URI.parse(uri), data, headers, :no_check_certificate => no_check_certificate)
Chris@0:     debug "Response received: #{response.code}"
Chris@1115: 
Chris@0:     case response.code.to_i
Chris@0:       when 403
Chris@1115:         warn "Request was denied by your Redmine server. " +
Chris@0:              "Make sure that 'WS for incoming emails' is enabled in application settings and that you provided the correct API key."
Chris@0:         return 77
Chris@0:       when 422
Chris@0:         warn "Request was denied by your Redmine server. " +
Chris@0:              "Possible reasons: email is sent from an invalid email address or is missing some information."
Chris@0:         return 77
Chris@0:       when 400..499
Chris@0:         warn "Request was denied by your Redmine server (#{response.code})."
Chris@0:         return 77
Chris@0:       when 500..599
Chris@0:         warn "Failed to contact your Redmine server (#{response.code})."
Chris@0:         return 75
Chris@0:       when 201
Chris@0:         debug "Proccessed successfully"
Chris@0:         return 0
Chris@0:       else
Chris@0:         return 1
Chris@0:     end
Chris@0:   end
Chris@1115: 
Chris@0:   private
Chris@1115: 
Chris@0:   def debug(msg)
Chris@0:     puts msg if verbose
Chris@0:   end
Chris@1115: 
Chris@1115:   def read_key_from_file(filename)
Chris@1115:     begin
Chris@1115:       self.key = File.read(filename).strip
Chris@1115:     rescue Exception => e
Chris@1115:       $stderr.puts "Unable to read the key from #{filename}:\n#{e.message}"
Chris@1115:       exit 1
Chris@1115:     end
Chris@1115:   end
Chris@0: end
Chris@0: 
Chris@0: handler = RedmineMailHandler.new
Chris@0: exit(handler.submit(STDIN.read))