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1 | 1 | # Redmine - project management software |
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2 | 2 | # Copyright (C) 2006-2011 Jean-Philippe Lang |
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3 | 3 | # |
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4 | 4 | # This program is free software; you can redistribute it and/or |
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5 | 5 | # modify it under the terms of the GNU General Public License |
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6 | 6 | # as published by the Free Software Foundation; either version 2 |
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7 | 7 | # of the License, or (at your option) any later version. |
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8 | 8 | # |
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9 | 9 | # This program is distributed in the hope that it will be useful, |
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10 | 10 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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11 | 11 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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12 | 12 | # GNU General Public License for more details. |
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13 | 13 | # |
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14 | 14 | # You should have received a copy of the GNU General Public License |
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15 | 15 | # along with this program; if not, write to the Free Software |
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16 | 16 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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17 | 17 | |
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18 | 18 | class MailHandler < ActionMailer::Base |
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19 | 19 | include ActionView::Helpers::SanitizeHelper |
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20 | 20 | include Redmine::I18n |
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21 | 21 | |
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22 | 22 | class UnauthorizedAction < StandardError; end |
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23 | 23 | class MissingInformation < StandardError; end |
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24 | 24 | |
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25 | 25 | attr_reader :email, :user |
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26 | 26 | |
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27 | 27 | def self.receive(email, options={}) |
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28 | 28 | @@handler_options = options.dup |
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29 | 29 | |
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30 | 30 | @@handler_options[:issue] ||= {} |
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31 | 31 | |
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32 | 32 | @@handler_options[:allow_override] = @@handler_options[:allow_override].split(',').collect(&:strip) if @@handler_options[:allow_override].is_a?(String) |
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33 | 33 | @@handler_options[:allow_override] ||= [] |
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34 | 34 | # Project needs to be overridable if not specified |
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35 | 35 | @@handler_options[:allow_override] << 'project' unless @@handler_options[:issue].has_key?(:project) |
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36 | 36 | # Status overridable by default |
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37 | 37 | @@handler_options[:allow_override] << 'status' unless @@handler_options[:issue].has_key?(:status) |
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38 | 38 | |
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39 | 39 | @@handler_options[:no_permission_check] = (@@handler_options[:no_permission_check].to_s == '1' ? true : false) |
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40 | 40 | super email |
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41 | 41 | end |
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42 | 42 | |
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43 | 43 | # Processes incoming emails |
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44 | 44 | # Returns the created object (eg. an issue, a message) or false |
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45 | 45 | def receive(email) |
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46 | 46 | @email = email |
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47 | 47 | sender_email = email.from.to_a.first.to_s.strip |
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48 | 48 | # Ignore emails received from the application emission address to avoid hell cycles |
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49 | 49 | if sender_email.downcase == Setting.mail_from.to_s.strip.downcase |
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50 | 50 | logger.info "MailHandler: ignoring email from Redmine emission address [#{sender_email}]" if logger && logger.info |
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51 | 51 | return false |
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52 | 52 | end |
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53 | 53 | @user = User.find_by_mail(sender_email) if sender_email.present? |
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54 | 54 | if @user && !@user.active? |
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55 | 55 | logger.info "MailHandler: ignoring email from non-active user [#{@user.login}]" if logger && logger.info |
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56 | 56 | return false |
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57 | 57 | end |
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58 | 58 | if @user.nil? |
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59 | 59 | # Email was submitted by an unknown user |
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60 | 60 | case @@handler_options[:unknown_user] |
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61 | 61 | when 'accept' |
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62 | 62 | @user = User.anonymous |
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63 | 63 | when 'create' |
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64 | 64 | @user = create_user_from_email(email) |
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65 | 65 | if @user |
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66 | 66 | logger.info "MailHandler: [#{@user.login}] account created" if logger && logger.info |
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67 | 67 | Mailer.deliver_account_information(@user, @user.password) |
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68 | 68 | else |
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69 | 69 | logger.error "MailHandler: could not create account for [#{sender_email}]" if logger && logger.error |
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70 | 70 | return false |
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71 | 71 | end |
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72 | 72 | else |
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73 | 73 | # Default behaviour, emails from unknown users are ignored |
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74 | 74 | logger.info "MailHandler: ignoring email from unknown user [#{sender_email}]" if logger && logger.info |
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75 | 75 | return false |
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76 | 76 | end |
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77 | 77 | end |
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78 | 78 | User.current = @user |
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79 | 79 | dispatch |
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80 | 80 | end |
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81 | 81 | |
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82 | 82 | private |
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83 | 83 | |
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84 | 84 | MESSAGE_ID_RE = %r{^<redmine\.([a-z0-9_]+)\-(\d+)\.\d+@} |
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85 | 85 | ISSUE_REPLY_SUBJECT_RE = %r{\[[^\]]*#(\d+)\]} |
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86 | 86 | MESSAGE_REPLY_SUBJECT_RE = %r{\[[^\]]*msg(\d+)\]} |
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87 | 87 | |
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88 | 88 | def dispatch |
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89 | 89 | headers = [email.in_reply_to, email.references].flatten.compact |
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90 | 90 | if headers.detect {|h| h.to_s =~ MESSAGE_ID_RE} |
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91 | 91 | klass, object_id = $1, $2.to_i |
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92 | 92 | method_name = "receive_#{klass}_reply" |
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93 | 93 | if self.class.private_instance_methods.collect(&:to_s).include?(method_name) |
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94 | 94 | send method_name, object_id |
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95 | 95 | else |
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96 | 96 | # ignoring it |
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97 | 97 | end |
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98 | 98 | elsif m = email.subject.match(ISSUE_REPLY_SUBJECT_RE) |
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99 | 99 | receive_issue_reply(m[1].to_i) |
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100 | 100 | elsif m = email.subject.match(MESSAGE_REPLY_SUBJECT_RE) |
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101 | 101 | receive_message_reply(m[1].to_i) |
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102 | 102 | else |
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103 | 103 | dispatch_to_default |
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104 | 104 | end |
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105 | 105 | rescue ActiveRecord::RecordInvalid => e |
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106 | 106 | # TODO: send a email to the user |
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107 | 107 | logger.error e.message if logger |
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108 | 108 | false |
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109 | 109 | rescue MissingInformation => e |
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110 | 110 | logger.error "MailHandler: missing information from #{user}: #{e.message}" if logger |
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111 | 111 | false |
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112 | 112 | rescue UnauthorizedAction => e |
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113 | 113 | logger.error "MailHandler: unauthorized attempt from #{user}" if logger |
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114 | 114 | false |
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115 | 115 | end |
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116 | 116 | |
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117 | 117 | def dispatch_to_default |
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118 | 118 | receive_issue |
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119 | 119 | end |
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120 | 120 | |
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121 | 121 | # Creates a new issue |
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122 | 122 | def receive_issue |
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123 | 123 | project = target_project |
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124 | 124 | # check permission |
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125 | 125 | unless @@handler_options[:no_permission_check] |
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126 | 126 | raise UnauthorizedAction unless user.allowed_to?(:add_issues, project) |
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127 | 127 | end |
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128 | 128 | |
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129 | 129 | issue = Issue.new(:author => user, :project => project) |
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130 | 130 | issue.safe_attributes = issue_attributes_from_keywords(issue) |
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131 | 131 | issue.safe_attributes = {'custom_field_values' => custom_field_values_from_keywords(issue)} |
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132 | 132 | issue.subject = email.subject.to_s.chomp[0,255] |
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133 | 133 | if issue.subject.blank? |
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134 | 134 | issue.subject = '(no subject)' |
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135 | 135 | end |
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136 | 136 | issue.description = cleaned_up_text_body |
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137 | 137 | |
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138 | 138 | # add To and Cc as watchers before saving so the watchers can reply to Redmine |
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139 | 139 | add_watchers(issue) |
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140 | 140 | issue.save! |
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141 | 141 | add_attachments(issue) |
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142 | 142 | logger.info "MailHandler: issue ##{issue.id} created by #{user}" if logger && logger.info |
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143 | 143 | issue |
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144 | 144 | end |
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145 | 145 | |
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146 | 146 | # Adds a note to an existing issue |
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147 | 147 | def receive_issue_reply(issue_id) |
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148 | 148 | issue = Issue.find_by_id(issue_id) |
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149 | 149 | return unless issue |
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150 | 150 | # check permission |
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151 | 151 | unless @@handler_options[:no_permission_check] |
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152 | 152 | raise UnauthorizedAction unless user.allowed_to?(:add_issue_notes, issue.project) || user.allowed_to?(:edit_issues, issue.project) |
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153 | 153 | end |
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154 | 154 | |
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155 | 155 | # ignore CLI-supplied defaults for new issues |
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156 | 156 | @@handler_options[:issue].clear |
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157 | 157 | |
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158 | 158 | journal = issue.init_journal(user) |
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159 | 159 | issue.safe_attributes = issue_attributes_from_keywords(issue) |
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160 | 160 | issue.safe_attributes = {'custom_field_values' => custom_field_values_from_keywords(issue)} |
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161 | 161 | journal.notes = cleaned_up_text_body |
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162 | 162 | add_attachments(issue) |
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163 | 163 | issue.save! |
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164 | 164 | logger.info "MailHandler: issue ##{issue.id} updated by #{user}" if logger && logger.info |
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165 | 165 | journal |
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166 | 166 | end |
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167 | 167 | |
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168 | 168 | # Reply will be added to the issue |
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169 | 169 | def receive_journal_reply(journal_id) |
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170 | 170 | journal = Journal.find_by_id(journal_id) |
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171 | 171 | if journal && journal.journalized_type == 'Issue' |
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172 | 172 | receive_issue_reply(journal.journalized_id) |
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173 | 173 | end |
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174 | 174 | end |
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175 | 175 | |
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176 | 176 | # Receives a reply to a forum message |
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177 | 177 | def receive_message_reply(message_id) |
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178 | 178 | message = Message.find_by_id(message_id) |
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179 | 179 | if message |
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180 | 180 | message = message.root |
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181 | 181 | |
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182 | 182 | unless @@handler_options[:no_permission_check] |
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183 | 183 | raise UnauthorizedAction unless user.allowed_to?(:add_messages, message.project) |
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184 | 184 | end |
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185 | 185 | |
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186 | 186 | if !message.locked? |
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187 | 187 | reply = Message.new(:subject => email.subject.gsub(%r{^.*msg\d+\]}, '').strip, |
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188 | 188 | :content => cleaned_up_text_body) |
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189 | 189 | reply.author = user |
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190 | 190 | reply.board = message.board |
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191 | 191 | message.children << reply |
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192 | 192 | add_attachments(reply) |
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193 | 193 | reply |
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194 | 194 | else |
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195 | 195 | logger.info "MailHandler: ignoring reply from [#{sender_email}] to a locked topic" if logger && logger.info |
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196 | 196 | end |
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197 | 197 | end |
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198 | 198 | end |
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199 | 199 | |
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200 | 200 | def add_attachments(obj) |
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201 | 201 | if email.attachments && email.attachments.any? |
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202 | 202 | email.attachments.each do |attachment| |
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203 | 203 | obj.attachments << Attachment.create(:container => obj, |
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204 | 204 | :file => attachment, |
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205 | 205 | :author => user, |
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206 | 206 | :content_type => attachment.content_type) |
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207 | 207 | end |
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208 | 208 | end |
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209 | 209 | end |
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210 | 210 | |
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211 | 211 | # Adds To and Cc as watchers of the given object if the sender has the |
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212 | 212 | # appropriate permission |
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213 | 213 | def add_watchers(obj) |
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214 | 214 | if user.allowed_to?("add_#{obj.class.name.underscore}_watchers".to_sym, obj.project) |
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215 | 215 | addresses = [email.to, email.cc].flatten.compact.uniq.collect {|a| a.strip.downcase} |
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216 | 216 | unless addresses.empty? |
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217 | 217 | watchers = User.active.find(:all, :conditions => ['LOWER(mail) IN (?)', addresses]) |
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218 | 218 | watchers.each {|w| obj.add_watcher(w)} |
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219 | 219 | end |
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220 | 220 | end |
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221 | 221 | end |
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222 | 222 | |
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223 | 223 | def get_keyword(attr, options={}) |
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224 | 224 | @keywords ||= {} |
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225 | 225 | if @keywords.has_key?(attr) |
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226 | 226 | @keywords[attr] |
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227 | 227 | else |
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228 | 228 | @keywords[attr] = begin |
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229 | 229 | if (options[:override] || @@handler_options[:allow_override].include?(attr.to_s)) && (v = extract_keyword!(plain_text_body, attr, options[:format])) |
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230 | 230 | v |
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231 | 231 | elsif !@@handler_options[:issue][attr].blank? |
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232 | 232 | @@handler_options[:issue][attr] |
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233 | 233 | end |
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234 | 234 | end |
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235 | 235 | end |
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236 | 236 | end |
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237 | 237 | |
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238 | 238 | # Destructively extracts the value for +attr+ in +text+ |
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239 | 239 | # Returns nil if no matching keyword found |
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240 | 240 | def extract_keyword!(text, attr, format=nil) |
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241 | 241 | keys = [attr.to_s.humanize] |
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242 | 242 | if attr.is_a?(Symbol) |
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243 | 243 | keys << l("field_#{attr}", :default => '', :locale => user.language) if user && user.language.present? |
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244 | 244 | keys << l("field_#{attr}", :default => '', :locale => Setting.default_language) if Setting.default_language.present? |
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245 | 245 | end |
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246 | 246 | keys.reject! {|k| k.blank?} |
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247 | 247 | keys.collect! {|k| Regexp.escape(k)} |
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248 | 248 | format ||= '.+' |
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249 | 249 | text.gsub!(/^(#{keys.join('|')})[ \t]*:[ \t]*(#{format})\s*$/i, '') |
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250 | 250 | $2 && $2.strip |
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251 | 251 | end |
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252 | 252 | |
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253 | 253 | def target_project |
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254 | 254 | # TODO: other ways to specify project: |
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255 | 255 | # * parse the email To field |
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256 | 256 | # * specific project (eg. Setting.mail_handler_target_project) |
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257 | 257 | target = Project.find_by_identifier(get_keyword(:project)) |
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258 | 258 | raise MissingInformation.new('Unable to determine target project') if target.nil? |
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259 | 259 | target |
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260 | 260 | end |
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261 | 261 | |
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262 | 262 | # Returns a Hash of issue attributes extracted from keywords in the email body |
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263 | 263 | def issue_attributes_from_keywords(issue) |
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264 | 264 | assigned_to = (k = get_keyword(:assigned_to, :override => true)) && find_assignee_from_keyword(k, issue) |
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265 | 265 | |
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266 | 266 | attrs = { |
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267 | 267 | 'tracker_id' => (k = get_keyword(:tracker)) && issue.project.trackers.named(k).first.try(:id), |
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268 | 268 | 'status_id' => (k = get_keyword(:status)) && IssueStatus.named(k).first.try(:id), |
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269 | 269 | 'priority_id' => (k = get_keyword(:priority)) && IssuePriority.named(k).first.try(:id), |
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270 | 270 | 'category_id' => (k = get_keyword(:category)) && issue.project.issue_categories.named(k).first.try(:id), |
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271 | 271 | 'assigned_to_id' => assigned_to.try(:id), |
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272 | 272 | 'fixed_version_id' => (k = get_keyword(:fixed_version, :override => true)) && issue.project.shared_versions.named(k).first.try(:id), |
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273 | 273 | 'start_date' => get_keyword(:start_date, :override => true, :format => '\d{4}-\d{2}-\d{2}'), |
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274 | 274 | 'due_date' => get_keyword(:due_date, :override => true, :format => '\d{4}-\d{2}-\d{2}'), |
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275 | 275 | 'estimated_hours' => get_keyword(:estimated_hours, :override => true), |
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276 | 276 | 'done_ratio' => get_keyword(:done_ratio, :override => true, :format => '(\d|10)?0') |
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277 | 277 | }.delete_if {|k, v| v.blank? } |
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278 | 278 | |
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279 | 279 | if issue.new_record? && attrs['tracker_id'].nil? |
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280 | 280 | attrs['tracker_id'] = issue.project.trackers.find(:first).try(:id) |
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281 | 281 | end |
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282 | 282 | |
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283 | 283 | attrs |
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284 | 284 | end |
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285 | 285 | |
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286 | 286 | # Returns a Hash of issue custom field values extracted from keywords in the email body |
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287 | 287 | def custom_field_values_from_keywords(customized) |
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288 | 288 | customized.custom_field_values.inject({}) do |h, v| |
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289 | 289 | if value = get_keyword(v.custom_field.name, :override => true) |
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290 | 290 | h[v.custom_field.id.to_s] = value |
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291 | 291 | end |
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292 | 292 | h |
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293 | 293 | end |
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294 | 294 | end |
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295 | 295 | |
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296 | 296 | # Returns the text/plain part of the email |
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297 | 297 | # If not found (eg. HTML-only email), returns the body with tags removed |
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298 | 298 | def plain_text_body |
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299 | 299 | return @plain_text_body unless @plain_text_body.nil? |
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300 | 300 | parts = @email.parts.collect {|c| (c.respond_to?(:parts) && !c.parts.empty?) ? c.parts : c}.flatten |
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301 | 301 | if parts.empty? |
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302 | 302 | parts << @email |
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303 | 303 | end |
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304 | 304 | plain_text_part = parts.detect {|p| p.content_type == 'text/plain'} |
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305 | 305 | if plain_text_part.nil? |
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306 | 306 | # no text/plain part found, assuming html-only email |
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307 | 307 | # strip html tags and remove doctype directive |
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308 | 308 | @plain_text_body = strip_tags(@email.body.to_s) |
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309 | 309 | @plain_text_body.gsub! %r{^<!DOCTYPE .*$}, '' |
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310 | 310 | else |
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311 | 311 | @plain_text_body = plain_text_part.body.to_s |
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312 | 312 | end |
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313 | 313 | @plain_text_body.strip! |
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314 | 314 | @plain_text_body |
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315 | 315 | end |
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316 | 316 | |
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317 | 317 | def cleaned_up_text_body |
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318 | 318 | cleanup_body(plain_text_body) |
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319 | 319 | end |
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320 | 320 | |
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321 | 321 | def self.full_sanitizer |
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322 | 322 | @full_sanitizer ||= HTML::FullSanitizer.new |
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323 | 323 | end |
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324 | 324 | |
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325 | 325 | def self.assign_string_attribute_with_limit(object, attribute, value) |
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326 | 326 | limit = object.class.columns_hash[attribute.to_s].limit || 255 |
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327 | 327 | value = value.to_s.slice(0, limit) |
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328 | 328 | object.send("#{attribute}=", value) |
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329 | 329 | end |
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330 | 330 | |
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331 | 331 | # Returns a User from an email address and a full name |
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332 | 332 | def self.new_user_from_attributes(email_address, fullname=nil) |
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333 | 333 | user = User.new |
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334 | 334 | |
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335 | 335 | # Truncating the email address would result in an invalid format |
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336 | 336 | user.mail = email_address |
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337 | 337 | assign_string_attribute_with_limit(user, 'login', email_address) |
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338 | 338 | |
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339 | 339 | names = fullname.blank? ? email_address.gsub(/@.*$/, '').split('.') : fullname.split |
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340 | 340 | assign_string_attribute_with_limit(user, 'firstname', names.shift) |
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341 | 341 | assign_string_attribute_with_limit(user, 'lastname', names.join(' ')) |
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342 | 342 | user.lastname = '-' if user.lastname.blank? |
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343 | 343 | |
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344 | 344 | password_length = [Setting.password_min_length.to_i, 10].max |
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345 | 345 | user.password = ActiveSupport::SecureRandom.hex(password_length / 2 + 1) |
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346 | 346 | user.language = Setting.default_language |
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347 | 347 | |
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348 | 348 | unless user.valid? |
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349 |
user.login = "user#{ActiveSupport::SecureRandom.hex(6)}" |
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350 |
user.firstname = "-" |
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351 |
user.lastname = "-" |
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349 | user.login = "user#{ActiveSupport::SecureRandom.hex(6)}" unless user.errors[:login].blank? | |
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350 | user.firstname = "-" unless user.errors[:firstname].blank? | |
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351 | user.lastname = "-" unless user.errors[:lastname].blank? | |
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352 | 352 | end |
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353 | 353 | |
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354 | 354 | user |
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355 | 355 | end |
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356 | 356 | |
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357 | 357 | # Creates a User for the +email+ sender |
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358 | 358 | # Returns the user or nil if it could not be created |
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359 | 359 | def create_user_from_email(email) |
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360 | 360 | addr = email.from_addrs.to_a.first |
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361 | 361 | if addr && !addr.spec.blank? |
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362 | 362 | user = self.class.new_user_from_attributes(addr.spec, addr.name) |
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363 | 363 | if user.save |
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364 | 364 | user |
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365 | 365 | else |
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366 | 366 | logger.error "MailHandler: failed to create User: #{user.errors.full_messages}" if logger |
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367 | 367 | nil |
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368 | 368 | end |
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369 | 369 | else |
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370 | 370 | logger.error "MailHandler: failed to create User: no FROM address found" if logger |
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371 | 371 | nil |
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372 | 372 | end |
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373 | 373 | end |
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374 | 374 | |
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375 | 375 | private |
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376 | 376 | |
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377 | 377 | # Removes the email body of text after the truncation configurations. |
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378 | 378 | def cleanup_body(body) |
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379 | 379 | delimiters = Setting.mail_handler_body_delimiters.to_s.split(/[\r\n]+/).reject(&:blank?).map {|s| Regexp.escape(s)} |
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380 | 380 | unless delimiters.empty? |
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381 | 381 | regex = Regexp.new("^[> ]*(#{ delimiters.join('|') })\s*[\r\n].*", Regexp::MULTILINE) |
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382 | 382 | body = body.gsub(regex, '') |
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383 | 383 | end |
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384 | 384 | body.strip |
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385 | 385 | end |
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386 | 386 | |
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387 | 387 | def find_assignee_from_keyword(keyword, issue) |
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388 | 388 | keyword = keyword.to_s.downcase |
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389 | 389 | assignable = issue.assignable_users |
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390 | 390 | assignee = nil |
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391 | 391 | assignee ||= assignable.detect {|a| a.mail.to_s.downcase == keyword || a.login.to_s.downcase == keyword} |
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392 | 392 | if assignee.nil? && keyword.match(/ /) |
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393 | 393 | firstname, lastname = *(keyword.split) # "First Last Throwaway" |
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394 | 394 | assignee ||= assignable.detect {|a| a.is_a?(User) && a.firstname.to_s.downcase == firstname && a.lastname.to_s.downcase == lastname} |
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395 | 395 | end |
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396 | 396 | if assignee.nil? |
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397 | 397 | assignee ||= assignable.detect {|a| a.is_a?(Group) && a.name.downcase == keyword} |
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398 | 398 | end |
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399 | 399 | assignee |
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400 | 400 | end |
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401 | 401 | end |
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