Changes between Version 1 and Version 2 of TracNotification


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Timestamp:
07/10/20 13:09:46 (9 months ago)
Author:
trac
Comment:

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  • TracNotification

    v1 v2  
    1 = Email Notification of Ticket Changes =
     1= Email Notification of Ticket Changes
    22[[TracGuideToc]]
    33
    4 Trac supports notification about ticket changes via email.
    5 
    6 Email notification is useful to keep users up-to-date on tickets/issues of interest, and also provides a convenient way to post all ticket changes to a dedicated mailing list. For example, this is how the [http://lists.edgewall.com/archive/trac-tickets/ Trac-tickets] mailing list is set up.
    7 
    8 Disabled by default, notification can be activated and configured in [wiki:TracIni trac.ini].
    9 
    10 == Receiving Notification Mails ==
    11 When reporting a new ticket or adding a comment, enter a valid email address in the ''reporter'', ''assigned to/owner'' or ''cc'' field. Trac will automatically send you an email when changes are made to the ticket (depending on how notification is configured).
    12 
    13 This is useful to keep up-to-date on an issue or enhancement request that interests you.
    14 
    15 == Configuring SMTP Notification ==
    16 
    17 === Configuration Options ===
    18 These are the available options for the ''[notification]'' section in trac.ini.
    19  * '''smtp_enabled''': Enable email notification.
    20  * '''smtp_server''': SMTP server used for notification messages.
    21  * '''smtp_user''': (''since 0.9'') User name for authentication SMTP account.
    22  * '''smtp_password''': (''since 0.9'') Password for authentication SMTP account.
    23  * '''smtp_from''': Email address to use for ''Sender''-headers in notification emails.
    24  * '''smtp_replyto''': Email address to use for ''Reply-To''-headers in notification emails.
    25  * '''smtp_default_domain''': (''since 0.10'') Append the specified domain to addresses that do not contain one. Fully qualified addresses are not modified. The default domain is appended to all username/login for which an email address cannot be found from the user settings.
    26  * '''smtp_always_cc''': List of email addresses to always send notifications to. ''Typically used to post ticket changes to a dedicated mailing list.''
    27  * '''smtp_always_bcc''': (''since 0.10'') List of email addresses to always send notifications to, but keeps addresses not visible from other recipients of the notification email
    28  * '''always_notify_reporter''':  Always send notifications to any address in the reporter field.
    29  * '''always_notify_owner''': (''since 0.9'') Always send notifications to the address in the owner field.
    30  * '''always_notify_updater''': (''since 0.10'') Always send a notification to the updater of a ticket.
    31  * '''use_public_cc''': (''since 0.10'') Addresses in To: (owner, reporter) and Cc: lists are visible by all recipients (default is ''Bcc:'' - hidden copy).
    32  * '''use_short_addr''': (''since 0.10'') Enable delivery of notifications to addresses that do not contain a domain (i.e. do not end with ''@<domain.com>'').This option is useful for intranets, where the SMTP server can handle local addresses and map the username/login to a local mailbox. See also `smtp_default_domain`. Do not use this option with a public SMTP server.
    33  * '''mime_encoding''': (''since 0.10'') E-mail notifications are always sent in 7-bit mode. This option allows to select the MIME encoding scheme. Supported values:
    34    * `base64`: default value, works with any kind of content. May cause some issues with touchy anti-spam/anti-virus engines.
    35    * `qp` or `quoted-printable`: best for european languages (more compact than base64), not recommended for non-ASCII text (less compact than base64)
    36    * `none`: no encoding. Use with plain english only (ASCII). E-mails with non-ASCII chars won't be delivered.
    37 
    38 Either '''smtp_from''' or '''smtp_replyto''' (or both) ''must'' be set, otherwise Trac refuses to send notification mails.
    39 
    40 === Example Configuration ===
    41 
    42 {{{
     4Trac supports notification of ticket changes via email.
     5
     6Email notification is useful to keep users up-to-date on tickets of interest, and also provides a convenient way to post all ticket changes to a dedicated mailing list.
     7
     8Disabled by default, notification can be activated and configured in [TracIni trac.ini].
     9
     10== Receiving Notification Mails
     11When reporting a new ticket or adding a comment, enter a valid email address or your Trac username in the ''reporter'', ''assigned to/owner'' or ''cc'' field. Trac may send you an email when changes are made to the ticket, depending on how your notification preferences are configured.
     12
     13Permission groups can also be entered in the CC field,
     14to notify all members of the group.
     15
     16=== How to use your username to receive notification mails
     17
     18To receive notification mails, you can either enter a full email address or your Trac username. To get notified with a simple username or login, you need to specify a valid email address in your [/prefs preferences].
     19
     20Alternatively, a default domain name ('''`smtp_default_domain`''') can be set in the TracIni file, see [#ConfigurationOptions Configuration Options] below. In this case, the default domain will be appended to the username, which can be useful for an "Intranet" kind of installation.
     21
     22When using apache and mod_kerb for authentication against Kerberos / Active Directory, usernames take the form ('''`username@EXAMPLE.LOCAL`'''). To avoid this being interpreted as an email address, add the Kerberos domain to  ('''`ignore_domains`''').
     23
     24=== Ticket attachment notifications
     25
     26Since 1.0.3 Trac will send notifications when a ticket attachment is added or deleted. Usually attachment notifications will be enabled in an environment by default. To disable the attachment notifications for an environment the `TicketAttachmentNotifier` component must be disabled:
     27{{{#!ini
     28[components]
     29trac.ticket.notification.TicketAttachmentNotifier = disabled
     30}}}
     31
     32== Configuring SMTP Notification
     33
     34'''Important:''' The [[TracIni#trac-base_url-option|[trac] base_url]] option must be configured for links in the notification message to be correctly generated.
     35
     36=== Configuration Options
     37These are the available options for the `[notification]` section in trac.ini:
     38
     39[[TracIni(section=notification)]]
     40
     41=== Example Configuration (SMTP)
     42{{{#!ini
    4343[notification]
    4444smtp_enabled = true
     
    4949}}}
    5050
    51 == Sample Email ==
     51=== Example Configuration (`sendmail`)
     52{{{#!ini
     53[notification]
     54smtp_enabled = true
     55email_sender = SendmailEmailSender
     56sendmail_path = /usr/sbin/sendmail
     57smtp_from = notifier@example.com
     58smtp_replyto = myproj@projects.example.com
     59smtp_always_cc = ticketmaster@example.com, theboss+myproj@example.com
     60}}}
     61
     62=== Subscriber Configuration
     63The default subscriptions are configured in the [TracIni#notification-subscriber-section "[notification-subscriber]"] section.
     64
     65[[TracIni(section=notification-subscriber)]]
     66
     67Each user can override these defaults in their ''Notifications'' preferences.
     68
     69For example to unsubscribe from notifications for one's own changes and comments, the rule "Never notify: I update a ticket" should be added above other subscription rules.
     70
     71The subscription rule name on the left side of the `=` can be anything, it has no meaning outside this configuration file. The subscriber name on the right side of the `=` must be one of the subscribers listed in the above table.
     72
     73The following attributes of default subscriptions can be configured:
     74* `.distributor` (Default: `email`)
     75  * Other values require plugins. For example `on-site` requires th:OnSiteNotificationsPlugin.
     76* `.priority` (Default: `100`)
     77  * Smaller values override larger values.
     78  * If you use `0`, then users will not be able to override this rule.
     79* `.adverb` (Default: `always`)
     80  * `never` can be used to silence other subscription rules with higher values.
     81* `.format` (Default: `text/plain`)
     82  * Other values require plugins. For example `text/html` requires th:TracHtmlNotificationPlugin.
     83
     84=== Example Configuration (default subscriptions)
     85{{{#!ini
     86[notification-subscriber]
     87always_notify_owner = TicketOwnerSubscriber
     88always_notify_owner.distributor = email
     89always_notify_owner.priority = 100
     90always_notify_owner.adverb = always
     91always_notify_owner.format = text/plain
     92
     93always_notify_previous_updater = TicketPreviousUpdatersSubscriber
     94
     95never_notify_updater = TicketUpdaterSubscriber
     96never_notify_updater.adverb = never
     97never_notify_updater.priority = 0
     98
     99notify_cc_html = CarbonCopySubscriber
     100notify_cc_html.format = text/html
     101}}}
     102
     103=== Customizing the email subject
     104The email subject can be customized with the `ticket_subject_template` option, which contains a [https://genshi.edgewall.org/wiki/Documentation/text-templates.html Genshi text template] snippet. The default value is:
     105{{{#!genshi
     106${prefix} #${ticket.id}: ${summary}
     107}}}
     108The following variables are available in the template:
     109
     110 * `changes`: The ticket changes (prepared by [trac:source:/branches/1.4-stable/trac/ticket/model.py Ticket.get_change]).
     111 * `env`: The project environment (see [trac:source:/branches/1.4-stable/trac/env.py env.py]).
     112 * `prefix`: The prefix defined in `smtp_subject_prefix`.
     113 * `summary`: The ticket summary, with the old value if the summary was edited.
     114 * `ticket`: The ticket model object (see [trac:source:/branches/1.4-stable/trac/ticket/model.py model.py]). Individual ticket fields can be addressed by appending the field name separated by a dot, eg `${ticket.milestone}`.
     115
     116=== Customizing the email content #CustomizingContent
     117
     118The notification email content is generated based on `ticket_notify_email.txt` in `trac/ticket/templates`. You can add your own version of this template by adding a `ticket_notify_email.txt` to the templates directory of your environment. The default is:
     119
     120{{{#!jinja
     121${ticket_body_hdr}
     122${ticket_props}
     123# if ticket.new:
     124${ticket.description}
     125# else:
     126#   if changes_body:
     127${_('Changes (by %(author)s):', author=change.author)}
     128
     129${changes_body}
     130#   endif
     131#   if changes_descr:
     132#     if not changes_body and not change.comment and change.author:
     133${_('Description changed by %(author)s:', author=change.author)}
     134#     endif
     135${changes_descr}
     136--
     137#   endif
     138#   if change.comment:
     139
     140${_('Comment:') if changes_body else
     141  _('Comment (by %(author)s):', author=change.author)}
     142
     143${change.comment}
     144#   endif
     145# endif
     146${'-- '}
     147${_('Ticket URL: <%(link)s>', link=ticket.link)}
     148${project.name} <${project.url or abs_href()}>
     149${project.descr}
     150}}}
     151
     152See the [trac:CookBook/Notification/Templates cookbook] for additional template customization recipes.
     153
     154== Sample Email
    52155{{{
    53156#42: testing
    54157---------------------------+------------------------------------------------
    55        Id:  42             |      Status:  assigned               
     158       Id:  42             |      Status:  assigned
    56159Component:  report system  |    Modified:  Fri Apr  9 00:04:31 2004
    57  Severity:  major          |   Milestone:  0.9                     
    58  Priority:  lowest         |     Version:  0.6                     
    59     Owner:  anonymous      |    Reporter:  jonas@example.com               
     160 Severity:  major          |   Milestone:  0.9
     161 Priority:  lowest         |     Version:  0.6
     162    Owner:  anonymous      |    Reporter:  jonas@example.com
    60163---------------------------+------------------------------------------------
    61164Changes:
    62   * component:  changset view => search system
     165  * component:  changeset view => search system
    63166  * priority:  low => highest
    64167  * owner:  jonas => anonymous
     
    75178}}}
    76179
    77 == Troubleshooting ==
    78 
    79 If you cannot get the notification working, first make sure the log is activated and have a look at the log to find if an error message has been logged. See TracLogging for help about the log feature.
    80 
    81 Notification errors are not reported through the web interface, so the user who submit a change or a new ticket never gets notified about a notification failure. The Trac administrator needs to look at the log to find the error trace.
    82 
    83 === ''Permission denied'' error ===
     180== Using GMail as the SMTP relay host
     181
     182Use the following configuration snippet:
     183{{{#!ini
     184[notification]
     185smtp_enabled = true
     186use_tls = true
     187mime_encoding = base64
     188smtp_server = smtp.gmail.com
     189smtp_port = 587
     190smtp_user = user
     191smtp_password = password
     192}}}
     193
     194where ''user'' and ''password'' match an existing GMail account, ie the ones you use to log in on [https://gmail.com].
     195
     196Alternatively, you can use `smtp_port = 25`.[[br]]
     197You should not use `smtp_port = 465`. Doing so may deadlock your ticket submission. Port 465 is reserved for the SMTPS protocol, which is not supported by Trac. See [trac:comment:2:ticket:7107 #7107] for details.
     198
     199== Troubleshooting
     200
     201If notifications are not working, inspect the [TracLogging log] for error messages.
     202
     203Notification errors are not always reported through the web interface, so the user who submits a change or creates a ticket may not get notified about a notification failure. The Trac administrator needs to look at the log to find the error message and traceback.
     204
     205=== ''Permission denied'' error
    84206
    85207Typical error message:
    86 {{{
     208{{{#!sh
    87209  ...
    88210  File ".../smtplib.py", line 303, in connect
     
    91213}}}
    92214
    93 This error usually comes from a security settings on the server: many Linux distributions do not let the web server (Apache, ...) to post email message to the local SMTP server.
     215This error usually comes from a security settings on the server: many Linux distributions do not allow the web server (Apache, ...) to post email messages to the local SMTP server.
    94216
    95217Many users get confused when their manual attempts to contact the SMTP server succeed:
    96 {{{
     218{{{#!sh
    97219telnet localhost 25
    98220}}}
    99 The trouble is that a regular user may connect to the SMTP server, but the web server cannot:
    100 {{{
     221This is because a regular user may connect to the SMTP server, but the web server cannot:
     222{{{#!sh
    101223sudo -u www-data telnet localhost 25
    102224}}}
    103225
    104 In such a case, you need to configure your server so that the web server is authorize to post to the SMTP server. The actual settings depend on your Linux distribution and current security policy. You may find help browsing the Trac MailingList archive.
     226In such a case, you need to configure your server so that the web server is authorized to post to the SMTP server. The actual settings depend on your Linux distribution and current security policy. You may find help in the Trac [trac:MailingList MailingList] archive.
    105227
    106228Relevant ML threads:
    107229 * SELinux: http://article.gmane.org/gmane.comp.version-control.subversion.trac.general/7518
    108  
    109 === ''Suspected spam'' error ===
     230
     231For SELinux in Fedora 10:
     232{{{#!sh
     233$ setsebool -P httpd_can_sendmail 1
     234}}}
     235
     236=== ''Suspected spam'' error
    110237
    111238Some SMTP servers may reject the notification email sent by Trac.
    112239
    113 The default Trac configuration uses Base64 encoding to send emails to the recipients. The whole body of the email is encoded, which sometimes trigger ''false positive'' SPAM detection on sensitive email servers. In such an event, it is recommended to change the default encoding to "quoted-printable" using the `mime_encoding` option.
    114 
    115 Quoted printable enconding works better with languages that use one of the Latin charsets. For Asian charsets, it is recommended to stick with the Base64 encoding.
     240The default Trac configuration uses Base64 encoding to send emails to the recipients. The whole body of the email is encoded, which sometimes trigger ''false positive'' spam detection on sensitive email servers. In such an event, change the default encoding to "quoted-printable" using the `mime_encoding` option.
     241
     242Quoted printable encoding works better with languages that use one of the Latin charsets. For Asian charsets, stick with the Base64 encoding.
    116243
    117244----
    118 See also: TracTickets, TracIni, TracGuide
     245See also: TracTickets, TracIni, TracGuide, [trac:TracDev/NotificationApi]