Redmine Email Fetcher

This redmine plugin extends the Redmine Receiving emails functionality by allowing the configuration of email accounts from where emails should be periodically fetched.

Features:

Stores IMAP and POP3 email configurations.
Associate each email configuration with the desired project, tracker and optionally with categories and priority.
Allow manual email connection test and fetch.
Adds a task which allows the cronjob to fetch emails from all active email configurations.
Allows a configuration to be inactivated to stop its emails synchronisation with Redmine.

Restrictions:

The plugin requires a Ruby version equal or higher than 1.9.0.
The plugin requires a Rails version equal or higher than 3.0.0.
The plugin requires a Redmine version equal or higher than 2.1.0.

Remarks:

The plugin is prepared and intended to run with any IMAP and POP3 email account, however some issues can accur due to security certificates.
When using SSL, please check that the machine has the proper certificates installed by running the following terminal commands:
- openssl
- s_client -connect HOST:PORT
The Categories and Priority fields are free text, so if you update their names it is your responsibility to update them accordingly in this plugin administration

Installation & Upgrade

install. - Copy your plugin directory into #{RAILS_ROOT}/plugins. If you are downloading the plugin directly from GitHub, you can do so by changing into the #{RAILS_ROOT}/plugins directory and issuing the command:
```
git clone git://github.com/luismaia/redmine_email_fetcher.git
```
upgrade - Backup and replace the old plugin directory with the new plugin files. If you are downloading the plugin directly from GitHub, you can do so by changing into the plugin directory and issuing the command git pull.
Update the ruby gems by changing into the redmine's directory and run the following command.
```
bundle install
```
Install the plugin by running the following command (in the redmine directory) to upgrade the database (make a db backup before) and copy current assets to public/plugin_assets/redmine_email_fetcher.
```
rake redmine:plugins:migrate RAILS_ENV=production
```
In the redmine directory #{RAILS_ROOT} run the following command.
```
rake -T redmine:plugins:email_fetcher RAILS_ENV=production
```
If the installation/upgrade was successful you should now see the list of Rake Tasks.
Restart Redmine.

You should now be able to see Redmine Email Fetcher listed among the plugins in Administration -> Plugins. You should now be able to see Redmine Email Fetcher in the administration main area Administration -> Fetch emails.

Uninstall

Change to the redmine directory #{RAILS_ROOT} and run the following command to downgrade the database (make a db backup before):
```
rake redmine:plugins:migrate NAME=email_fetcher VERSION=0 RAILS_ENV=production
```
Remove the plugin from the plugins folder: #{RAILS_ROOT}/plugins
Restart Redmine.

Usage

Configuration

Open Administration > Fetch emails to access the plugin configuration:

Email Configuration Attributes:

Configuration type - Sets Email account configuration type:
- IMAP
- POP3
Is configuration active? - Specify if this email account is active and should be synchronized:
- True - Task fetch_all_emails should synchronize this email account
- False - Task fetch_all_emails should ignore this email account
Last successful fetch at - (read only) Date and time of the last synchronization of this email account with Redmine.

Email Attributes:

Host - The IMAP or POP3 server host (e.g. 127.0.0.1).
Port - The IMAP or POP3 server port. Eg., 993.
SSL - SSL usage? (Default: True) [Options: True, False]
Username - The IMAP or POP3 email account username (e.g. it@domain.com).
Password - The IMAP or POP3 email account password.
Folder name - The email folder name from where the emails should be fetched:
- IMAP - Any folder name is possible, but the test function will validate that this folder is reachable after login) (e.g. REDMINE).
- POP3 - Since this is an old protocol, only the INBOX folder is allowed (in fact you can't change this option)
On success move to folder (IMAP only) - (optional) This IMAP attribute allows configuration of where successfully received emails should be moved to, instead of deleting them (e.g. ARCHIVE).
On failure move to folder (IMAP only) - (optional) This IMAP attribute allows configuration of where ignored emails should be moved (e.g. IGNORED).
Use APOP? (POP3 only) - This POP3 attribute allows specifying if APOP authentication should be used (default: false).
On failure delete email (POP3 only) - This POP3 attribute allows specifying whether emails which could not be processed successfully are deleted from the server
(default: false - default behaviour is to leave them on the server).

Unknown Sender Actions (in Redmine):

Method for unknown users - How to handle emails from an unknown user where ACTION can be one of the following values:
- accept - the sender is considered as an anonymous user and the email is accepted (default). If you choose this option you must activate the Custom field owner-email, where the sender email address will be stored. Without this field activated, the email fetch will fail, since this information is required to send information back to the sender (the Redmine Helpdesk plugin may be a nice addition).
- ignore - The email is ignored.
- create - A user account is created for the sender (username/password are sent back to the user) and the email is accepted.
Use no_account_notice - Suppressing account generation notification (default False).
Use no_permission_check - Disable permission checking when receiving the email (default True).
Default group for new reporters - (optional) Automatically adding new users to some group(s) (e.g. group1,group2).

Default Issue creation (in Redmine) Attributes:

Tracker - Target tracker (in case no tracker is specified in email content).
Category name - (optional) Name of the default category (in case no category is specified in email content).
Priority name - (optional) Name of the default priority (in case no priority is specified in email content).
allow_override - (optional) Allow email content to override attributes specified by previous options ATTRS is a comma separated list of attributes (e.g. project,tracker,category,priority).
Project - Target default project (in case no project is specified in email content).

For more information on these option visit Redmine official wiki RedmineReceivingEmails page.

Rake tasks

The following tasks are available:

# rake -T redmine:plugins:email_fetcher
rake redmine:plugins:email_fetcher:fetch_all_emails   # Fetch all active email accounts emails to Redmine

This task can be used for periodic synchronization. For example:

# etch all active email accounts emails to Redmine @ every 5 minutes
*/5 * * * *   www-data /usr/bin/rake -f /opt/redmine/Rakefile --silent redmine:plugins:email_fetcher:fetch_all_emails RAILS_ENV=production 2>&- 1>&-

The tasks recognize three environment variables:

DRY_RUN - Performs a run without changing the database.
LOG_LEVEL - Controls the rake task verbosity. The possible values are:
- silent: Nothing is written to the output.
- error: Only errors are written to the output.
- change: Only writes errors and changes made to the user/group's base.
- debug: Detailed information about the execution is visible to help identify errors. This is the default value.

Contributing

Feel free to contribute by adding more features or solving issues.

All PR are very welcome.

After make your changes and before send the PR to the project, please validate that:

Rubocop doesn't detect offenses:

cd plugins/redmine_email_fetcher
rubocop --auto-correct

Tests are passing (tests need Redmine):

RAILS_ENV=test rake db:drop db:create db:migrate
RAILS_ENV=test rake redmine:plugins:migrate
RAILS_ENV=test rake redmine:load_default_data

RAILS_ENV=test rake test TEST=plugins/redmine_email_fetcher/test/<path_to_test>
e.g.:
RAILS_ENV=test rake test TEST=plugins/redmine_email_fetcher/test/models/email_configuration_test.rb
RAILS_ENV=test bundle exec ruby -I test plugins/redmine_email_fetcher/test/models/email_configuration_test.rb

License

This plugin is released under the GPL v3 license.

See LICENSE for more information.

luismaia / redmine_email_fetcher