Changes between Version 2 and Version 3 of TracNotification


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Timestamp:
2017-08-28T06:33:43Z (4 weeks ago)
Author:
trac
Comment:

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  • TracNotification

    v2 v3  
    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_port''': (''since 0.9'') Port used to contact the SMTP server.
    22  * '''smtp_user''': (''since 0.9'') User name for authentication SMTP account.
    23  * '''smtp_password''': (''since 0.9'') Password for authentication SMTP account.
    24  * '''smtp_from''': Email address to use for ''Sender''-headers in notification emails.
    25  * '''smtp_from_name''': Sender name to use for ''Sender''-headers in notification emails.
    26  * '''smtp_replyto''': Email address to use for ''Reply-To''-headers in notification emails.
    27  * '''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.
    28  * '''smtp_always_cc''': List of email addresses to always send notifications to. ''Typically used to post ticket changes to a dedicated mailing list.''
    29  * '''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
    30  * '''smtp_subject_prefix''': (''since 0.10.1'') Text that is inserted before the subject of the email. Set to "!__default!__" by default.
    31  * '''always_notify_reporter''':  Always send notifications to any address in the reporter field (default: false).
    32  * '''always_notify_owner''': (''since 0.9'') Always send notifications to the address in the owner field (default: false).
    33  * '''always_notify_updater''': (''since 0.10'') Always send a notification to the updater of a ticket (default: true).
    34  * '''use_public_cc''': (''since 0.10'') Addresses in To: (owner, reporter) and Cc: lists are visible by all recipients (default is ''Bcc:'' - hidden copy).
    35  * '''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.
    36  * '''use_tls''': (''since 0.10'') Toggle to send notifications via a SMTP server using [http://en.wikipedia.org/wiki/Transport_Layer_Security TLS], such as GMail.
    37  * '''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:
    38    * `base64`: default value, works with any kind of content. May cause some issues with touchy anti-spam/anti-virus engines.
    39    * `qp` or `quoted-printable`: best for european languages (more compact than base64), not recommended for non-ASCII text (less compact than base64)
    40    * `none`: no encoding. Use with plain english only (ASCII). E-mails with non-ASCII chars won't be delivered.
    41 
    42 Either '''smtp_from''' or '''smtp_replyto''' (or both) ''must'' be set, otherwise Trac refuses to send notification mails.
    43 
    44 === Example Configuration ===
    45 
    46 {{{
     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 will automatically send you an email when changes are made to the ticket, depending on how notification is configured.
     12
     13=== How to use your username to receive notification mails
     14
     15To 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].
     16
     17Alternatively, 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.
     18
     19When 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`''').
     20
     21=== Ticket attachment notifications
     22
     23Since 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:
     24{{{#!ini
     25[components]
     26trac.ticket.notification.TicketAttachmentNotifier = disabled
     27}}}
     28
     29== Configuring SMTP Notification
     30
     31'''Important:''' The [[TracIni#trac-base_url-option|[trac] base_url]] option must be configured for links in the notification message to be correctly generated.
     32
     33=== Configuration Options
     34These are the available options for the `[notification]` section in trac.ini:
     35
     36[[TracIni(section=notification)]]
     37
     38=== Example Configuration (SMTP)
     39{{{#!ini
    4740[notification]
    4841smtp_enabled = true
     
    5346}}}
    5447
    55 == Sample Email ==
     48=== Example Configuration (`sendmail`)
     49{{{#!ini
     50[notification]
     51smtp_enabled = true
     52email_sender = SendmailEmailSender
     53sendmail_path = /usr/sbin/sendmail
     54smtp_from = notifier@example.com
     55smtp_replyto = myproj@projects.example.com
     56smtp_always_cc = ticketmaster@example.com, theboss+myproj@example.com
     57}}}
     58
     59=== Subscriber Configuration
     60The default subscriptions are configured in the [TracIni#notification-subscriber-section "[notification-subscriber]"] section.
     61
     62[[TracIni(section=notification-subscriber)]]
     63
     64Each user can override these defaults in their ''Notifications'' preferences.
     65
     66For 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.
     67
     68The 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.
     69
     70The following attributes of default subscriptions can be configured:
     71* `.distributor` (Default: `email`)
     72  * Other values require plugins. For example `on-site` requires th:OnSiteNotificationsPlugin.
     73* `.priority` (Default: `100`)
     74  * Smaller values override larger values.
     75  * If you use `0`, then users will not be able to override this rule.
     76* `.adverb` (Default: `always`)
     77  * `never` can be used to silence other subscription rules with higher values.
     78* `.format` (Default: `text/plain`)
     79  * Other values require plugins. For example `text/html` requires th:TracHtmlNotificationPlugin.
     80
     81=== Example Configuration (default subscriptions)
     82{{{#!ini
     83[notification-subscriber]
     84always_notify_owner = TicketOwnerSubscriber
     85always_notify_owner.distributor = email
     86always_notify_owner.priority = 100
     87always_notify_owner.adverb = always
     88always_notify_owner.format = text/plain
     89
     90always_notify_previous_updater = TicketPreviousUpdatersSubscriber
     91
     92never_notify_updater = TicketUpdaterSubscriber
     93never_notify_updater.adverb = never
     94never_notify_updater.priority = 0
     95
     96notify_cc_html = CarbonCopySubscriber
     97notify_cc_html.format = text/html
     98}}}
     99
     100=== Customizing the e-mail subject
     101The e-mail subject can be customized with the `ticket_subject_template` option, which contains a [http://genshi.edgewall.org/wiki/Documentation/text-templates.html Genshi text template] snippet. The default value is:
     102{{{#!genshi
     103${prefix} #${ticket.id}: ${summary}
     104}}}
     105The following variables are available in the template:
     106
     107 * `env`: The project environment object (see [trac:source:/trunk/trac/env.py env.py]).
     108 * `prefix`: The prefix defined in `smtp_subject_prefix`.
     109 * `summary`: The ticket summary, with the old value if the summary was edited.
     110 * `ticket`: The ticket model object (see [trac:source:/trunk/trac/ticket/model.py model.py]). Individual ticket fields can be accessed by appending the field name separated by a dot, eg `${ticket.milestone}`.
     111
     112=== Customizing the e-mail content
     113
     114The notification e-mail 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:
     115
     116{{{#!genshi
     117${ticket_body_hdr}
     118${ticket_props}
     119# if ticket.new:
     120${ticket.description}
     121# else:
     122#   if changes_body:
     123${_('Changes (by %(author)s):', author=change.author)}
     124
     125${changes_body}
     126#   endif
     127#   if changes_descr:
     128#     if not changes_body and not change.comment and change.author:
     129${_('Description changed by %(author)s:', author=change.author)}
     130#     endif
     131${changes_descr}
     132--
     133#   endif
     134#   if change.comment:
     135
     136${_('Comment:') if changes_body else
     137  _('Comment (by %(author)s):', author=change.author)}
     138
     139${change.comment}
     140#   endif
     141# endif
     142--
     143${_('Ticket URL: <%(link)s>', link=ticket.link)}
     144${project.name} <${project.url or abs_href()}>
     145${project.descr}
     146}}}
     147
     148See the [trac:CookBook/Notification/Templates cookbook] for additional template customization recipes.
     149
     150== Sample Email
    56151{{{
    57152#42: testing
     
    64159---------------------------+------------------------------------------------
    65160Changes:
    66   * component:  changset view => search system
     161  * component:  changeset view => search system
    67162  * priority:  low => highest
    68163  * owner:  jonas => anonymous
     
    79174}}}
    80175
    81 == Using GMail as the SMTP relay host ==
    82 
    83 Use the following configuration snippet
    84 {{{
     176== Using GMail as the SMTP relay host
     177
     178Use the following configuration snippet:
     179{{{#!ini
    85180[notification]
    86181smtp_enabled = true
     
    93188}}}
    94189
    95 where ''user'' and ''password'' match an existing GMail account, ''i.e.'' the ones you use to log in on [http://gmail.com]
     190where ''user'' and ''password'' match an existing GMail account, ie the ones you use to log in on [http://gmail.com].
    96191
    97192Alternatively, you can use `smtp_port = 25`.[[br]]
    98 You should not use `smtp_port = 465`. It will not work and your ticket submission may deadlock. Port 465 is reserved for the SMTPS protocol, which is not supported by Trac. See [comment:ticket:7107:2 #7107] for details.
    99  
    100 == Filtering notifications for one's own changes ==
    101 In Gmail, use the filter:
    102 
    103 {{{
    104 from:(<smtp_from>) (("Reporter: <username>" -Changes) OR "Changes (by <username>)")
    105 }}}
    106 
    107 to delete these notifications.
    108 
    109 == Troubleshooting ==
    110 
    111 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.
    112 
    113 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.
    114 
    115 === ''Permission denied'' error ===
     193You 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.
     194
     195== Troubleshooting
     196
     197If notifications are not working, inspect the [TracLogging log] for error messages.
     198
     199Notification 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.
     200
     201=== ''Permission denied'' error
    116202
    117203Typical error message:
    118 {{{
     204{{{#!sh
    119205  ...
    120206  File ".../smtplib.py", line 303, in connect
     
    123209}}}
    124210
    125 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.
     211This 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.
    126212
    127213Many users get confused when their manual attempts to contact the SMTP server succeed:
    128 {{{
     214{{{#!sh
    129215telnet localhost 25
    130216}}}
    131 The trouble is that a regular user may connect to the SMTP server, but the web server cannot:
    132 {{{
     217This is because a regular user may connect to the SMTP server, but the web server cannot:
     218{{{#!sh
    133219sudo -u www-data telnet localhost 25
    134220}}}
    135221
    136 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.
     222In 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.
    137223
    138224Relevant ML threads:
    139225 * SELinux: http://article.gmane.org/gmane.comp.version-control.subversion.trac.general/7518
    140  
    141 === ''Suspected spam'' error ===
     226
     227For SELinux in Fedora 10:
     228{{{#!sh
     229$ setsebool -P httpd_can_sendmail 1
     230}}}
     231
     232=== ''Suspected spam'' error
    142233
    143234Some SMTP servers may reject the notification email sent by Trac.
    144235
    145 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.
    146 
    147 Quoted printable encoding works better with languages that use one of the Latin charsets. For Asian charsets, it is recommended to stick with the Base64 encoding.
     236The 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.
     237
     238Quoted printable encoding works better with languages that use one of the Latin charsets. For Asian charsets, stick with the Base64 encoding.
    148239
    149240----
    150 See also: TracTickets, TracIni, TracGuide
     241See also: TracTickets, TracIni, TracGuide, [trac:TracDev/NotificationApi]