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egroupware_official/etemplate/inc/class.bo_tracking.inc.php

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<?php
/**
* EGroupware - abstract base class for tracking (history log, notifications, ...)
*
* @link http://www.egroupware.org
* @author Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @package etemplate
* @subpackage api
* @copyright (c) 2007-13 by Ralf Becker <RalfBecker-AT-outdoor-training.de>
* @license http://opensource.org/licenses/gpl-license.php GPL - GNU General Public License
* @version $Id$
*/
/**
* Abstract base class for trackering:
* - logging all modifications of an entry
* - notifying users about changes in an entry
*
* You need to extend these class in your application:
* 1. set the required class-vars: app, id_field
* 2. optional set class-vars: creator_field, assigned_field, check2prefs
* 3. implement the required methods: get_config, get_details
* 4. optionally re-implement: get_title, get_subject, get_body, get_attachments, get_link, get_notification_link, get_message
* They are all documented in this file via phpDocumentor comments.
*
* Translate field-name to history status field:
* As history status was only char(2) prior to EGroupware 1.6, a mapping was necessary.
* Now it's varchar(64) and a mapping makes no sense for new applications, just list
* all fields to log as key AND value!
*
* History login supports now 1:N relations on a base record. To use that you need:
* - to have the 1:N relation as array of arrays with the values of that releation, eg:
* $data = array(
* 'id' => 123,
* 'title' => 'Something',
* 'date' => '2009-08-21 14:42:00',
* 'participants' => array(
* array('account_id' => 15, 'name' => 'User Hugo', 'status' => 'A', 'quantity' => 1),
* array('account_id' => 17, 'name' => 'User Bert', 'status' => 'U', 'quantity' => 3),
* ),
* );
* - set field2history as follows
* $field2history = array(
* 'id' => 'id',
* 'title' => 'title',
* 'participants' => array('uid','status','quantity'),
* );
* - set content for history log widget:
* $content['history'] = array(
* 'id' => 123,
* 'app' => 'calendar',
* 'status-widgets' => array(
* 'title' => 'label', // no need to set, as default is label
* 'date' => 'datetime',
* 'participants' = array(
* 'select-account',
* array('U' => 'Unknown', 'A' => 'Accepted', 'R' => 'Rejected'),
* 'integer',
* ),
* ),
* );
* - set lables for history:
* $sel_options['status'] = array(
* 'title' => 'Title',
* 'date' => 'Starttime',
* 'participants' => 'Participants: User, Status, Quantity', // a single label!
* );
*
* The above is also an example for using regular history login in EGroupware (by skipping the 'participants' key).
*/
abstract class bo_tracking
{
/**
* Application we are tracking
*
* @var string
*/
var $app;
/**
* Name of the id-field, used as id in the history log (required!)
*
* @var string
*/
var $id_field;
/**
* Name of the field with the creator id, if the creator of an entry should be notified
*
* @var string
*/
var $creator_field;
/**
* Name of the field with the id(s) of assinged users, if they should be notified
*
* @var string
*/
var $assigned_field;
/**
* Can be used to map the following prefs to different names:
* - notify_creator - user wants to be notified for items he created
* - notify_assigned - user wants to be notified for items assigned to him
* @var array
*/
var $check2pref;
/**
* Translate field-name to history status field (see comment in class header)
*
* @var array
*/
var $field2history = array();
/**
* Should the user (passed to the track method or current user if not passed) be used as sender or get_config('sender')
*
* @var boolean
*/
var $prefer_user_as_sender = true;
/**
* Should the current user be email-notified (about change he made himself)
*
* Popup notifications are never send to the current user!
*
* @var boolean
*/
var $notify_current_user = false;
/**
* Array with error-messages if track($data,$old) returns false
*
* @var array
*/
var $errors = array();
/**
* instance of the historylog object for the app we are tracking
*
* @access private
* @var historylog
*/
var $historylog;
/**
* Current user, can be set via bo_tracking::track(,,$user)
*
* @access private
* @var int;
*/
var $user;
/**
* Datetime format of the currently notified user (send_notificaton)
*
* @var string
*/
var $datetime_format;
/**
* Should the class allow html content (for notifications)
*
* @var boolean
*/
var $html_content_allow = false;
/**
* Custom fields of type link entry or application
*
* Used to automatic create or update a link
*
* @var array field => application name pairs (or empty for link entry)
*/
var $cf_link_fields = array();
/**
* Separator for 1:N relations
*
*/
const ONE2N_SEPERATOR = '~|~';
/**
* Config name for custom notification message
*/
const CUSTOM_NOTIFICATION = 'custom_notification';
/**
* Constructor
*
* @param string $cf_app=null if set, custom field names get added to $field2history
* @return bo_tracking
*/
function __construct($cf_app = null)
{
if ($cf_app)
{
$linkable_cf_types = array('link-entry')+array_keys(egw_link::app_list());
foreach(config::get_customfields($cf_app, true) as $cf_name => $cf_data)
{
$this->field2history['#'.$cf_name] = '#'.$cf_name;
if (in_array($cf_data['type'],$linkable_cf_types))
{
$this->cf_link_fields['#'.$cf_name] = $cf_data['type'] == 'link-entry' ? '' : $cf_data['type'];
}
}
}
}
function bo_tracking()
{
self::__construct();
}
/**
* Get the details of an entry
*
* You can/should call $this->get_customfields() to add custom fields.
*
* @param array|object $data
* @param int|string $receiver nummeric account_id or email address
* @return array of details as array with values for keys 'label','value','type'
*/
function get_details($data,$receiver=null)
{
return array();
}
/**
* Get custom fields of an entry of an entry
*
* @param array|object $data
* @param string $only_type2=null if given only return fields of type2 == $only_type2
* @return array of details as array with values for keys 'label','value','type'
*/
function get_customfields($data, $only_type2=null)
{
$details = array();
if (($cfs = config::get_customfields($this->app, $all_private_too=false, $only_type2)))
{
$header_done = false;
foreach($cfs as $name => $field)
{
if (in_array($field['type'], customfields_widget::$non_printable_fields)) continue;
if (!$header_done)
{
$details['custom'] = array(
'value' => lang('Custom fields').':',
'type' => 'reply',
);
$header_done = true;
}
//error_log(__METHOD__."() $name: data['#$name']=".array2string($data['#'.$name]).", field[values]=".array2string($field['values']));
$details['#'.$name] = array(
'label' => $field['label'],
'value' => customfields_widget::format_customfield($field, $data['#'.$name]),
);
//error_log("--> details['#$name']=".array2string($details['#'.$name]));
}
}
return $details;
}
/**
* Get a config value, which can depend on $data and $old
*
* Need to be implemented in your extended tracking class!
*
* @param string $what possible values are:
* - 'assigned' array of users to use instead of a field in the data
* - 'copy' array of email addresses notifications should be copied too, can depend on $data
* - 'lang' string lang code for copy mail
* - 'subject' string subject line for the notification of $data,$old, defaults to link-title
* - 'link' string of link to view $data
* - 'sender' sender of email
* - 'skip_notify' array of email addresses that should _not_ be notified
* - CUSTOM_NOTIFICATION string notification body message. Merge print placeholders are allowed.
* @param array $data current entry
* @param array $old=null old/last state of the entry or null for a new entry
* @return mixed
*/
protected function get_config($name,$data,$old=null)
{
return null;
}
/**
* Tracks the changes in one entry $data, by comparing it with the last version in $old
*
* @param array $data current entry
* @param array $old=null old/last state of the entry or null for a new entry
* @param int $user=null user who made the changes, default to current user
* @param boolean $deleted=null can be set to true to let the tracking know the item got deleted or undeleted
* @param array $changed_fields=null changed fields from ealier call to $this->changed_fields($data,$old), to not compute it again
* @param boolean $skip_notification=false do NOT send any notification
* @return int|boolean false on error, integer number of changes logged or true for new entries ($old == null)
*/
public function track(array $data,array $old=null,$user=null,$deleted=null,array $changed_fields=null,$skip_notification=false)
{
$this->user = !is_null($user) ? $user : $GLOBALS['egw_info']['user']['account_id'];
$changes = true;
//error_log(__METHOD__.__LINE__);
if ($old && $this->field2history)
{
//error_log(__METHOD__.__LINE__.' Changedfields:'.print_r($changed_fields,true));
$changes = $this->save_history($data,$old,$deleted,$changed_fields);
//error_log(__METHOD__.__LINE__.' Changedfields:'.print_r($changed_fields,true));
//error_log(__METHOD__.__LINE__.' Changes:'.print_r($changes,true));
}
//error_log(__METHOD__.__LINE__.' LinkFields:'.array2string($this->cf_link_fields));
if ($changes && $this->cf_link_fields)
{
$this->update_links($data,(array)$old);
}
// do not run do_notifications if we have no changes
if ($changes && !$skip_notification && !$this->do_notifications($data,$old,$deleted))
{
$changes = false;
}
return $changes;
}
/**
* Store a link for each custom field linking to an other application and update them
*
* @param array $data
* @param array $old
*/
protected function update_links(array $data, array $old)
{
//error_log(__METHOD__.__LINE__.array2string($data).function_backtrace());
//error_log(__METHOD__.__LINE__.array2string($this->cf_link_fields));
foreach((array)$this->cf_link_fields as $name => $val)
{
//error_log(__METHOD__.__LINE__.' Field:'.$name. ' Value (new):'.array2string($data[$name]));
//error_log(__METHOD__.__LINE__.' Field:'.$name. ' Value (old):'.array2string($old[$name]));
if (is_array($data[$name]) && array_key_exists('id',$data[$name])) $data[$name] = $data[$name]['id'];
if (is_array($old[$name]) && array_key_exists('id',$old[$name])) $old[$name] = $old[$name]['id'];
//error_log(__METHOD__.__LINE__.'(After processing) Field:'.$name. ' Value (new):'.array2string($data[$name]));
//error_log(__METHOD__.__LINE__.'(After processing) Field:'.$name. ' Value (old):'.array2string($old[$name]));
}
$current_ids = array_unique(array_diff(array_intersect_key($data,$this->cf_link_fields),array('',0,NULL)));
$old_ids = $old ? array_unique(array_diff(array_intersect_key($old,$this->cf_link_fields),array('',0,NULL))) : array();
//error_log(__METHOD__.__LINE__.array2string($current_ids));
//error_log(__METHOD__.__LINE__.array2string($old_ids));
// create links for added application entry
foreach(array_diff($current_ids,$old_ids) as $name => $id)
{
if (!($app = $this->cf_link_fields[$name]))
{
list($app,$id) = explode(':',$id);
if (!$id) continue; // can be eg. 'addressbook:', if no contact selected
}
$source_id = $data[$this->id_field];
//error_log(__METHOD__.__LINE__.array2string($source_id));
if ($source_id) egw_link::link($this->app,$source_id,$app,$id);
//error_log(__METHOD__.__LINE__."egw_link::link('$this->app',".array2string($source_id).",'$app',$id);");
//echo "<p>egw_link::link('$this->app',{$data[$this->id_field]},'$app',$id);</p>\n";
}
// unlink removed application entries
foreach(array_diff($old_ids,$current_ids) as $name => $id)
{
if (!isset($data[$name])) continue; // ignore not set link cf's, eg. from sync clients
if (!($app = $this->cf_link_fields[$name]))
{
list($app,$id) = explode(':',$id);
if (!$id) continue;
}
$source_id = $data[$this->id_field];
if ($source_id) egw_link::unlink(null,$this->app,$source_id,0,$app,$id);
//echo "<p>egw_link::unlink(NULL,'$this->app',{$data[$this->id_field]},0,'$app',$id);</p>\n";
}
}
/**
* Save changes to the history log
*
* @internal use only track($data,$old)
* @param array $data current entry
* @param array $old=null old/last state of the entry or null for a new entry
* @param boolean $deleted=null can be set to true to let the tracking know the item got deleted or undelted
* @param array $changed_fields=null changed fields from ealier call to $this->changed_fields($data,$old), to not compute it again
* @return int number of log-entries made
*/
protected function save_history(array $data,array $old=null,$deleted=null,array $changed_fields=null)
{
//error_log(__METHOD__.__LINE__.' Changedfields:'.array2string($changed_fields));
if (is_null($changed_fields))
{
$changed_fields = self::changed_fields($data,$old);
//error_log(__METHOD__.__LINE__.' Changedfields:'.array2string($changed_fields));
}
if (!$changed_fields && ($old || !$GLOBALS['egw_info']['server']['log_user_agent_action'])) return 0;
if (!is_object($this->historylog) || $this->historylog->user != $this->user)
{
$this->historylog = new historylog($this->app,$this->user);
}
// log user-agent and session-action
if ($GLOBALS['egw_info']['server']['log_user_agent_action'] && ($changed_fields || !$old))
{
$this->historylog->add('user_agent_action', $data[$this->id_field],
$_SERVER['HTTP_USER_AGENT'], $_SESSION[egw_session::EGW_SESSION_VAR]['session_action']);
}
foreach($changed_fields as $name)
{
$status = isset($this->field2history[$name]) ? $this->field2history[$name] : $name;
//error_log(__METHOD__.__LINE__." Name $name,".' Status:'.array2string($status));
if (is_array($status)) // 1:N relation --> remove common rows
{
//error_log(__METHOD__.__LINE__.' is Array');
self::compact_1_N_relation($data[$name],$status);
self::compact_1_N_relation($old[$name],$status);
$added = array_values(array_diff($data[$name],$old[$name]));
$removed = array_values(array_diff($old[$name],$data[$name]));
$n = max(array(count($added),count($removed)));
for($i = 0; $i < $n; ++$i)
{
//error_log(__METHOD__."() $i: historylog->add('$name',data['$this->id_field']={$data[$this->id_field]},".array2string($added[$i]).','.array2string($removed[$i]));
$this->historylog->add($name,$data[$this->id_field],$added[$i],$removed[$i]);
}
}
else
{
//error_log(__METHOD__.__LINE__.' IDField:'.array2string($this->id_field).' ->'.$data[$this->id_field].' New:'.$data[$name].' Old:'.$old[$name]);
$this->historylog->add($status,$data[$this->id_field],
is_array($data[$name]) ? implode(',',$data[$name]) : $data[$name],
is_array($old[$name]) ? implode(',',$old[$name]) : $old[$name]);
}
}
//error_log(__METHOD__.__LINE__.' return:'.count($changed_fields));
return count($changed_fields);
}
/**
* Compute changes between new and old data
*
* Can be used to check if saving the data is really necessary or user just pressed save
*
* @param array $data
* @param array $old=null
* @return array of keys with different values in $data and $old
*/
public function changed_fields(array $data,array $old=null)
{
if (is_null($old)) return array_keys($data);
$changed_fields = array();
foreach($this->field2history as $name => $status)
{
if (!$old[$name] && !$data[$name]) continue; // treat all sorts of empty equally
if ($name[0] == '#' && !isset($data[$name])) continue; // no set customfields are not stored, therefore not changed
if (is_array($status)) // 1:N relation
{
self::compact_1_N_relation($data[$name],$status);
self::compact_1_N_relation($old[$name],$status);
}
if ($old[$name] != $data[$name])
{
// normalize arrays, we do NOT care for the order of multiselections
if (is_array($data[$name]) || is_array($old[$name]))
{
if (!is_array($data[$name])) $data[$name] = explode(',',$data[$name]);
if (!is_array($old[$name])) $old[$name] = explode(',',$old[$name]);
if (count($data[$name]) == count($old[$name]))
{
sort($data[$name]);
sort($old[$name]);
if ($data[$name] == $old[$name]) continue;
}
}
$changed_fields[] = $name;
//echo "<p>$name: ".array2string($data[$name]).' != '.array2string($old[$name])."</p>\n";
}
}
foreach($data as $name => $value)
{
if ($name[0] == '#' && $name[1] == '#' && $value !== $old[$name])
{
$changed_fields[] = $name;
}
}
//error_log(__METHOD__."() changed_fields=".array2string($changed_fields));
return $changed_fields;
}
/**
* Compact (spezified) fields of a 1:N relation into an array of strings
*
* @param array &$rows rows of the 1:N relation
* @param array $cols field names as values
*/
private static function compact_1_N_relation(&$rows,array $cols)
{
if (is_array($rows))
{
foreach($rows as $key => &$row)
{
$values = array();
foreach($cols as $col)
{
$values[] = $row[$col];
}
$row = implode(self::ONE2N_SEPERATOR,$values);
}
}
else
{
$rows = array();
}
}
/**
* sending all notifications for the changed entry
*
* @internal use only track($data,$old,$user)
* @param array $data current entry
* @param array $old=null old/last state of the entry or null for a new entry
* @param boolean $deleted=null can be set to true to let the tracking know the item got deleted or undelted
* @param array $email_notified=null if present will return the emails notified, if given emails in that list will not be notified
* @return boolean true on success, false on error (error messages are in $this->errors)
*/
public function do_notifications($data,$old,$deleted=null,&$email_notified=null)
{
$this->errors = $email_sent = array();
if (!empty($email_notified) && is_array($email_notified)) $email_sent = $email_notified;
if (!$this->notify_current_user && $this->user) // do we have a current user and should we notify the current user about his own changes
{
//error_log("do_notificaton() adding user=$this->user to email_sent, to not notify him");
$email_sent[] = $GLOBALS['egw']->accounts->id2name($this->user,'account_email');
}
$skip_notify = $this->get_config('skip_notify',$data,$old);
if($skip_notify && is_array($skip_notify))
{
$email_sent = array_merge($email_sent, $skip_notify);
}
// entry creator
if ($this->creator_field && ($email = $GLOBALS['egw']->accounts->id2name($data[$this->creator_field],'account_email')) &&
!in_array($email, $email_sent))
{
if ($this->send_notification($data,$old,$email,$data[$this->creator_field],'notify_creator'))
{
$email_sent[] = $email;
}
}
// members of group when entry owned by group
if ($this->creator_field && $GLOBALS['egw']->accounts->get_type($data[$this->creator_field]) == 'g')
{
foreach($GLOBALS['egw']->accounts->members($data[$this->creator_field],true) as $u)
{
if (($email = $GLOBALS['egw']->accounts->id2name($u,'account_email')) &&
!in_array($email, $email_sent))
{
if ($this->send_notification($data,$old,$email,$u,'notify_owner_group_member'))
{
$email_sent[] = $email;
}
}
}
}
// assigned / responsible users
if ($this->assigned_field || $assigned = $this->get_config('assigned', $data))
{
//error_log("bo_tracking::do_notifications() data[$this->assigned_field]=".print_r($data[$this->assigned_field],true).", old[$this->assigned_field]=".print_r($old[$this->assigned_field],true));
$assignees = $old_assignees = array();
$assignees = $assigned ? $assigned : $assignees;
if ($data[$this->assigned_field]) // current assignments
{
$assignees = is_array($data[$this->assigned_field]) ?
$data[$this->assigned_field] : explode(',',$data[$this->assigned_field]);
}
if ($old && $old[$this->assigned_field])
{
$old_assignees = is_array($old[$this->assigned_field]) ?
$old[$this->assigned_field] : explode(',',$old[$this->assigned_field]);
}
foreach(array_unique(array_merge($assignees,$old_assignees)) as $assignee)
{
//error_log("bo_tracking::do_notifications() assignee=$assignee, type=".$GLOBALS['egw']->accounts->get_type($assignee).", email=".$GLOBALS['egw']->accounts->id2name($assignee,'account_email'));
if (!$assignee) continue;
// item assignee is a user
if ($GLOBALS['egw']->accounts->get_type($assignee) == 'u')
{
if (($email = $GLOBALS['egw']->accounts->id2name($assignee,'account_email')) && !in_array($email, $email_sent))
{
if ($this->send_notification($data,$old,$email,$assignee,'notify_assigned',
in_array($assignee,$assignees) !== in_array($assignee,$old_assignees) || $deleted)) // assignment changed
{
$email_sent[] = $email;
}
}
}
else // item assignee is a group
{
foreach($GLOBALS['egw']->accounts->members($assignee,true) as $u)
{
if (($email = $GLOBALS['egw']->accounts->id2name($u,'account_email')) && !in_array($email, $email_sent))
{
if ($this->send_notification($data,$old,$email,$u,'notify_assigned',
in_array($u,$assignees) !== in_array($u,$old_assignees) || $deleted)) // assignment changed
{
$email_sent[] = $email;
}
}
}
}
}
}
// notification copies
if (($copies = $this->get_config('copy',$data,$old)))
{
$lang = $this->get_config('lang',$data,$old);
foreach($copies as $email)
{
if (strchr($email,'@') !== false && !in_array($email, $email_sent))
{
if ($this->send_notification($data,$old,$email,$lang,'notify_copy'))
{
$email_sent[] = $email;
}
}
}
}
$email_notified = $email_sent;
return !count($this->errors);
}
/**
* Cache for notificaton body
*
* Cache is by id, language, date-format and type text/html
*/
protected $body_cache = array();
/**
* method to clear the Cache for notificaton body
*
* Cache is by id, language, date-format and type text/html
*/
public function ClearBodyCache()
{
$this->body_cache = array();
}
/**
* Sending a notification to the given email-address
*
* Called by track() or externally for sending async notifications
*
* Method changes $GLOBALS['egw_info']['user'], so everything called by it, eg. get_(subject|body|links|attachements),
* must NOT store something from user enviroment! By the end of the method, everything get changed back.
*
* @param array $data current entry
* @param array $old=null old/last state of the entry or null for a new entry
* @param string $email address to send the notification to
* @param string $user_or_lang='en' user-id or 2 char lang-code for a non-system user
* @param string $check=null pref. to check if a notification is wanted
* @param boolean $assignment_changed=true the assignment of the user $user_or_lang changed
* @param boolean $deleted=null can be set to true to let the tracking know the item got deleted or undelted
* @return boolean true on success or false if notification not requested or error (error-message is in $this->errors)
*/
public function send_notification($data,$old,$email,$user_or_lang,$check=null,$assignment_changed=true,$deleted=null)
{
//error_log(__METHOD__."(,,'$email',$user_or_lang,$check,$assignment_changed,$deleted)");
if (!$email) return false;
$save_user = $GLOBALS['egw_info']['user'];
$do_notify = true;
if (is_numeric($user_or_lang)) // user --> read everything from his prefs
{
$GLOBALS['egw_info']['user']['account_id'] = $user_or_lang;
$GLOBALS['egw']->preferences->__construct($user_or_lang);
$GLOBALS['egw_info']['user']['preferences'] = $GLOBALS['egw']->preferences->read_repository(false); // no session prefs!
if ($check && $this->check2pref) $check = $this->check2pref[$check];
if ($check && !$GLOBALS['egw_info']['user']['preferences'][$this->app][$check] || // no notification requested
// only notification about changed assignment requested
$check && $GLOBALS['egw_info']['user']['preferences'][$this->app][$check] === 'assignment' && !$assignment_changed ||
$this->user == $user_or_lang && !$this->notify_current_user) // no popup for own actions
{
$do_notify = false; // no notification requested / necessary
}
}
else
{
// for the notification copy, we use default (and forced) prefs plus the language from the the tracker config
$GLOBALS['egw_info']['user']['preferences'] = $GLOBALS['egw']->preferences->default_prefs();
$GLOBALS['egw_info']['user']['preferences']['common']['lang'] = $user_or_lang;
}
if ($GLOBALS['egw_info']['user']['preferences']['common']['lang'] != translation::$userlang) // load the right language if needed
{
translation::init();
}
if ($do_notify)
{
// Load date/time preferences into egw_time
egw_time::init();
// Cache message body to not have to re-generate it every time
$lang = translation::$userlang;
$date_format = $GLOBALS['egw_info']['user']['preferences']['common']['dateformat'] .
$GLOBALS['egw_info']['user']['preferences']['common']['timeformat'];
// Cache text body
$body_cache =& $this->body_cache[$data[$this->id_field]][$lang][$date_format];
if(empty($data[$this->id_field]) || !isset($body_cache['text']))
{
$body_cache['text'] = $this->get_body(false,$data,$old,false,$receiver);
}
// Cache HTML body
if(empty($data[$this->id_field]) || !isset($body_cache['html']))
{
$body_cache['html'] = $this->get_body(true,$data,$old,false,$receiver);
}
// get rest of notification message
$sender = $this->get_sender($data,$old,true,$receiver);
$subject = $this->get_subject($data,$old,$deleted,$receiver);
$link = $this->get_notification_link($data,$old,$receiver);
$attachments = $this->get_attachments($data,$old,$receiver);
}
// restore user enviroment BEFORE calling notification class or returning
$GLOBALS['egw_info']['user'] = $save_user;
// need to call preferences constructor and read_repository, to set user timezone again
$GLOBALS['egw']->preferences->__construct($GLOBALS['egw_info']['user']['account_id']);
$GLOBALS['egw_info']['user']['preferences'] = $GLOBALS['egw']->preferences->read_repository(false); // no session prefs!
// Re-load date/time preferences
egw_time::init();
if ($GLOBALS['egw_info']['user']['preferences']['common']['lang'] != translation::$userlang)
{
translation::init();
}
if (!$do_notify)
{
return false;
}
// send over notification_app
if ($GLOBALS['egw_info']['apps']['notifications']['enabled'])
{
// send via notification_app
$receiver = is_numeric($user_or_lang) ? $user_or_lang : $email;
try {
$notification = new notifications();
$notification->set_receivers(array($receiver));
$notification->set_message($body_cache['text']);
$notification->set_message($body_cache['html']);
$notification->set_sender($sender);
$notification->set_subject($subject);
$notification->set_links(array($link));
if ($attachments && is_array($attachments))
{
$notification->set_attachments($attachments);
}
$notification->send();
}
catch (Exception $exception)
{
$this->errors[] = $exception->getMessage();
return false;
}
}
else
{
error_log('tracking: cannot send any notifications because notifications is not installed');
}
return true;
}
/**
* Return date+time formatted for the currently notified user (prefs in $GLOBALS['egw_info']['user']['preferences'])
*
* @param int|string|DateTime $timestamp in server-time
* @param boolean $do_time=true true=allways (default), false=never print the time, null=print time if != 00:00
*
* @return string
*/
public function datetime($timestamp,$do_time=true)
{
if (!is_a($timestamp,'DateTime'))
{
$timestamp = new egw_time($timestamp,egw_time::$server_timezone);
}
$timestamp->setTimezone(egw_time::$user_timezone);
if (is_null($do_time))
{
$do_time = ($timestamp->format('Hi') != '0000');
}
$format = $GLOBALS['egw_info']['user']['preferences']['common']['dateformat'];
if ($do_time) $format .= ' '.($GLOBALS['egw_info']['user']['preferences']['common']['timeformat'] != 12 ? 'H:i' : 'h:i a');
return $timestamp->format($format);
}
/**
* Get sender address
*
* The default implementation prefers depending on the prefer_user_as_sender class-var the user over
* what is returned by get_config('sender').
*
* @param int $user account_lid of user
* @param array $data
* @param array $old
* @param bool $prefer_id returns the userid rather than email
* @param int|string $receiver nummeric account_id or email address
* @return string or userid
*/
protected function get_sender($data,$old,$prefer_id=false,$receiver=null)
{
$sender = $this->get_config('sender',$data,$old);
//echo "<p>bo_tracking::get_sender() get_config('sender',...)='".htmlspecialchars($sender)."'</p>\n";
if (($this->prefer_user_as_sender || !$sender) && $this->user &&
($email = $GLOBALS['egw']->accounts->id2name($this->user,'account_email')))
{
$name = $GLOBALS['egw']->accounts->id2name($this->user,'account_fullname');
if($prefer_id) {
$sender = $this->user;
} else {
$sender = $name ? $name.' <'.$email.'>' : $email;
}
}
elseif(!$sender)
{
$sender = 'eGroupWare '.lang($this->app).' <noreply@'.$GLOBALS['egw_info']['server']['mail_suffix'].'>';
}
//echo "<p>bo_tracking::get_sender()='".htmlspecialchars($sender)."'</p>\n";
return $sender;
}
/**
* Get the title for a given entry, can be reimplemented
*
* @param array $data
* @param array $old
* @return string
*/
protected function get_title($data,$old)
{
return egw_link::title($this->app,$data[$this->id_field]);
}
/**
* Get the subject for a given entry, can be reimplemented
*
* Default implementation uses the link-title
*
* @param array $data
* @param array $old
* @param boolean $deleted=null can be set to true to let the tracking know the item got deleted or undelted
* @param int|string $receiver nummeric account_id or email address
* @return string
*/
protected function get_subject($data,$old,$deleted=null,$receiver=null)
{
return egw_link::title($this->app,$data[$this->id_field]);
}
/**
* Get the modified / new message (1. line of mail body) for a given entry, can be reimplemented
*
* Default implementation does nothing
*
* @param array $data
* @param array $old
* @param int|string $receiver nummeric account_id or email address
* @return string
*/
protected function get_message($data,$old,$receiver=null)
{
return '';
}
/**
* Get a link to view the entry, can be reimplemented
*
* Default implementation checks get_config('link') (appending the id) or link::view($this->app,$id)
*
* @param array $data
* @param array $old
* @param string $allow_popup=false if true return array(link,popup-size) incl. session info an evtl. partial url (no host-part)
* @param int|string $receiver nummeric account_id or email address
* @return string|array string with link (!$allow_popup) or array(link,popup-size), popup size is something like '640x480'
*/
protected function get_link($data,$old,$allow_popup=false,$receiver=null)
{
if (($link = $this->get_config('link',$data,$old)))
{
if (!$this->get_config('link_no_id', $data) && strpos($link,$this->id_field.'=') === false && isset($data[$this->id_field]))
{
$link .= strpos($link,'?') === false ? '?' : '&';
$link .= $this->id_field.'='.$data[$this->id_field];
}
}
else
{
if (($view = egw_link::view($this->app,$data[$this->id_field])))
{
$link = $GLOBALS['egw']->link('/index.php',$view);
$popup = egw_link::is_popup($this->app,'view');
}
}
if ($link[0] == '/')
{
$link = ($_SERVER['HTTPS'] || $GLOBALS['egw_info']['server']['enforce_ssl'] ? 'https://' : 'http://').
($GLOBALS['egw_info']['server']['hostname'] ? $GLOBALS['egw_info']['server']['hostname'] : $_SERVER['HTTP_HOST']).$link;
}
if (!$allow_popup)
{
// remove the session-id in the notification mail!
$link = preg_replace('/(sessionid|kp3|domain)=[^&]+&?/','',$link);
if ($popup) $link .= '&nopopup=1';
}
//error_log(__METHOD__."(..., $allow_popup, $receiver) returning ".array2string($allow_popup ? array($link,$popup) : $link));
return $allow_popup ? array($link,$popup) : $link;
}
/**
* Get a link for notifications to view the entry, can be reimplemented
*
* @param array $data
* @param array $old
* @param int|string $receiver nummeric account_id or email address
* @return array with link
*/
protected function get_notification_link($data,$old,$receiver=null)
{
if (($view = egw_link::view($this->app,$data[$this->id_field])))
{
return array(
'text' => $this->get_title($data,$old),
'view' => $view,
'popup' => egw_link::is_popup($this->app,'view'),
);
}
return false;
}
/**
* Get the body of the notification message, can be reimplemented
*
* @param boolean $html_email
* @param array $data
* @param array $old
* @param boolean $integrate_link to have links embedded inside the body
* @param int|string $receiver nummeric account_id or email address
* @return string
*/
public function get_body($html_email,$data,$old,$integrate_link = true,$receiver=null)
{
$body = '';
if($this->get_config(self::CUSTOM_NOTIFICATION, $data, $old))
{
$body = $this->get_custom_message($data,$old);
if($sig = $this->get_signature($data,$old,$receiver))
{
$body .= ($html_email ? '<br />':'') . "\n$sig";
}
return $body;
}
if ($html_email)
{
$body = '<table cellspacing="2" cellpadding="0" border="0" width="100%">'."\n";
}
// new or modified message
if (($message = $this->get_message($data,$old,$receiver)))
{
foreach ((array)$message as $k => $_message)
{
$body .= $this->format_line($html_email,'message',false,($_message=='---'?($html_email?'<hr/>':$_message):$_message));
}
}
if ($integrate_link && ($link = $this->get_link($data,$old,false,$receiver)))
{
$body .= $this->format_line($html_email,'link',false,$integrate_link === true ? lang('You can respond by visiting:') : $integrate_link,$link);
}
foreach($this->get_details($data,$receiver) as $name => $detail)
{
// if there's no old entry, the entry is not modified by definition
// if both values are '', 0 or null, we count them as equal too
$modified = $old && $data[$name] != $old[$name] && !(!$data[$name] && !$old[$name]);
//if ($modified) error_log("data[$name]=".print_r($data[$name],true).", old[$name]=".print_r($old[$name],true)." --> modified=".(int)$modified);
if (empty($detail['value']) && !$modified) continue; // skip unchanged, empty values
$body .= $this->format_line($html_email,$detail['type'],$modified,
$detail['label'] ? $detail['label'] : '', $detail['value']);
}
if ($html_email)
{
$body .= "</table>\n";
}
if($sig = $this->get_signature($data,$old,$receiver))
{
$body .= ($html_email ? '<br />':'') . "\n$sig";
}
return $body;
}
/**
* Format one line to the mail body
*
* @internal
* @param boolean $html_mail
* @param string $type 'link', 'message', 'summary', 'multiline', 'reply' and ''=regular content
* @param boolean $modified mark field as modified
* @param string $line whole line or just label
* @param string $data=null data or null to display just $line over 2 columns
* @return string
*/
protected function format_line($html_mail,$type,$modified,$line,$data=null)
{
//error_log(__METHOD__.'('.array2string($html_mail).",'$type',".array2string($modified).",'$line',".array2string($data).')');
$content = '';
if ($html_mail)
{
if (!$this->html_content_allow) $line = html::htmlspecialchars($line); // XSS
$color = $modified ? 'red' : false;
$size = '110%';
$bold = false;
$background = '#FFFFF1';
switch($type)
{
case 'message':
$background = '#D3DCE3;';
$bold = true;
break;
case 'link':
$background = '#F1F1F1';
break;
case 'summary':
$background = '#F1F1F1';
$bold = true;
break;
case 'multiline':
// Only Convert nl2br on non-html content
if (strpos($data, '<br') === false)
{
$data = nl2br($this->html_content_allow ? $data : html::htmlspecialchars($data));
$this->html_content_allow = true; // to NOT do htmlspecialchars again
}
break;
case 'reply':
$background = '#F1F1F1';
break;
default:
$size = false;
}
$style = ($bold ? 'font-weight:bold;' : '').($size ? 'font-size:'.$size.';' : '').($color?'color:'.$color:'');
$content = '<tr style="background-color: '.$background.';"><td style="'.$style.($line && $data?'" width="20%':'" colspan="2').'">';
}
else // text-mail
{
if ($type == 'reply') $content = str_repeat('-',64)."\n";
if ($modified) $content .= '> ';
}
$content .= $line;
if ($html_mail)
{
if ($line && $data) $content .= '</td><td style="'.$style.'">';
if ($type == 'link')
{
// the link is often too long for html boxes chunk-split allows to break lines if needed
$content .= html::a_href(chunk_split(rawurldecode($data),40,'&#8203;'),$data,'','target="_blank"');
}
elseif ($this->html_content_allow)
{
$content .= html::activate_links($data);
}
else
{
$content .= html::htmlspecialchars($data);
}
}
else
{
$content .= ($content&&$data?': ':'').$data;
}
if ($html_mail) $content .= '</td></tr>';
$content .= "\n";
return $content;
}
/**
* Get the attachments for a notification
*
* @param array $data
* @param array $old
* @param int|string $receiver nummeric account_id or email address
* @return array or array with values for either 'string' or 'path' and optionally (mime-)'type', 'filename' and 'encoding'
*/
protected function get_attachments($data,$old,$receiver=null)
{
return array();
}
/**
* Get a (global) signature to append to the change notificaiton
*/
protected function get_signature($data, $old, $receiver)
{
$config = config::read('notifications');
if(!isset($data[$this->id_field]))
{
error_log($this->app . ' did not properly implement bo_tracking->id_field. Merge skipped.');
}
elseif(class_exists($this->app. '_merge'))
{
$merge_class = $this->app.'_merge';
$merge = new $merge_class();
$sig = $merge->merge_string($config['signature'], array($data[$this->id_field]), $error, 'text/html');
if($error)
{
error_log($error);
return $config['signature'];
}
return $sig;
}
return $config['signature'];
}
/**
* Get a custom notification message to be used instead of the standard one.
* It can use merge print placeholders to include data.
*/
protected function get_custom_message($data, $old, $merge_class = null)
{
$message = $this->get_config(self::CUSTOM_NOTIFICATION, $data, $old);
if(!$message)
{
return '';
}
// Automatically set merge class from naming conventions
if($merge_class == null)
{
$merge_class = $this->app.'_merge';
}
if(!isset($data[$this->id_field]))
{
error_log($this->app . ' did not properly implement bo_tracking->id_field. Merge skipped.');
return $message;
}
elseif(class_exists($merge_class))
{
$merge = new $merge_class();
$merged_message = $merge->merge_string($message, array($data[$this->id_field]), $error, 'text/html');
if($error)
{
error_log($error);
return $message;
}
return $merged_message;
}
else
{
throw new egw_exception_wrong_parameter("Invalid merge class '$merge_class' for {$this->app} custom notification");
}
}
}
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