/
MailboxHandler.php
758 lines (629 loc) · 28.7 KB
/
MailboxHandler.php
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<?php
# $Id$
/**
* Simple class to represent a user.
*/
class MailboxHandler extends PFAHandler {
protected $db_table = 'mailbox';
protected $id_field = 'username';
protected $domain_field = 'domain';
protected $searchfields = array('username');
# init $this->struct, $this->db_table and $this->id_field
protected function initStruct() {
$passwordReset = Config::read('forgotten_user_password_reset');
$reset_by_sms = 0;
if ($passwordReset && Config::read('sms_send_function')) {
$reset_by_sms = 1;
}
$this->struct=array(
# field name allow display in... type $PALANG label $PALANG description default / options / ...
# editing? form list
'username' => pacol($this->new, 1, 1, 'mail', 'pEdit_mailbox_username' , '' , '' ),
'local_part' => pacol($this->new, 0, 0, 'text', 'pEdit_mailbox_username' , '' , '' ),
'domain' => pacol($this->new, 0, 1, 'enum', '' , '' , '',
/*options*/ $this->allowed_domains ),
# TODO: maildir: display in list is needed to include maildir in SQL result (for post_edit hook)
# TODO: (not a perfect solution, but works for now - maybe we need a separate "include in SELECT query" field?)
'maildir' => pacol($this->new, 0, 1, 'text', '' , '' , '' ),
'password' => pacol(1, 1, 0, 'pass', 'password' , 'pCreate_mailbox_password_text' , '' ),
'password2' => pacol(1, 1, 0, 'pass', 'password_again' , '' , '',
/*options*/ '',
/*not_in_db*/ 0,
/*dont_write_to_db*/ 1,
/*select*/ 'password as password2'
),
'name' => pacol(1, 1, 1, 'text', 'name' , 'pCreate_mailbox_name_text' , '' ),
'quota' => pacol(1, 1, 1, 'int' , 'pEdit_mailbox_quota' , 'pEdit_mailbox_quota_text' , '' ), # in MB
# read_from_db_postprocess() also sets 'quotabytes' for use in init()
# TODO: read used quota from quota/quota2 table
'active' => pacol(1, 1, 1, 'bool', 'active' , '' , 1 ),
'welcome_mail' => pacol($this->new, $this->new, 0, 'bool', 'pCreate_mailbox_mail' , '' , 1,
/*options*/ '',
/*not_in_db*/ 1 ),
'phone' => pacol(1, $reset_by_sms, 0, 'text', 'pCreate_mailbox_phone' , 'pCreate_mailbox_phone_desc' , ''),
'email_other' => pacol(1, $passwordReset, 0, 'mail', 'pCreate_mailbox_email' , 'pCreate_mailbox_email_desc' , ''),
'token' => pacol(1, 0, 0, 'text', '' , '' ),
'token_validity' => pacol(1, 0, 0, 'ts', '' , '', date("Y-m-d H:i:s",time())),
'created' => pacol(0, 0, 1, 'ts', 'created' , '' ),
'modified' => pacol(0, 0, 1, 'ts', 'last_modified' , '' ),
# TODO: add virtual 'notified' column and allow to display who received a vacation response?
);
# update allowed quota
if (count($this->struct['domain']['options']) > 0) {
$this->prefill('domain', $this->struct['domain']['options'][0]);
}
}
public function init($id) {
if (!parent::init($id)) {
return false;
}
if ($this->new) {
$currentquota = 0;
} else {
$currentquota = $this->result['quotabytes']; # parent::init called ->view()
}
$this->updateMaxquota($this->domain, $currentquota);
return true; # still here? good.
}
protected function domain_from_id() {
list(/*NULL*/, $domain) = explode('@', $this->id);
return $domain;
}
/**
* show max allowed quota in quota field description
* @param string - domain
* @param int - current quota
*/
protected function updateMaxquota($domain, $currentquota) {
if ($domain == '') {
return false;
}
$maxquota = $this->allowed_quota($domain, $currentquota);
if ($maxquota == 0) {
# TODO: show 'unlimited'
# } elseif ($maxquota < 0) {
# TODO: show 'disabled' - at the moment, just shows '-1'
} else {
$this->struct['quota']['desc'] = Config::lang_f('mb_max', $maxquota);
}
}
protected function initMsg() {
$this->msg['error_already_exists'] = 'email_address_already_exists';
$this->msg['error_does_not_exist'] = 'pCreate_mailbox_username_text_error1';
$this->msg['confirm_delete'] = 'confirm_delete_mailbox';
if ($this->new) {
$this->msg['logname'] = 'create_mailbox';
$this->msg['store_error'] = 'pCreate_mailbox_result_error';
$this->msg['successmessage'] = 'pCreate_mailbox_result_success';
} else {
$this->msg['logname'] = 'edit_mailbox';
$this->msg['store_error'] = 'mailbox_update_failed';
$this->msg['successmessage'] = 'mailbox_updated';
}
}
public function webformConfig() {
if ($this->new) { # the webform will display a local_part field + domain dropdown on $new
$this->struct['username']['display_in_form'] = 0;
$this->struct['local_part']['display_in_form'] = 1;
$this->struct['domain']['display_in_form'] = 1;
}
return array(
# $PALANG labels
'formtitle_create' => 'pCreate_mailbox_welcome',
'formtitle_edit' => 'pEdit_mailbox_welcome',
'create_button' => 'add_mailbox',
# various settings
'required_role' => 'admin',
'listview' => 'list-virtual.php',
'early_init' => 0,
'prefill' => array('domain'),
);
}
protected function validate_new_id() {
if ($this->id == '') {
$this->errormsg[$this->id_field] = Config::lang('pCreate_mailbox_username_text_error1');
return false;
}
$email_check = check_email($this->id);
if ($email_check != '') {
$this->errormsg[$this->id_field] = $email_check;
return false;
}
list(/*NULL*/, $domain) = explode('@', $this->id);
if (!$this->create_allowed($domain)) {
$this->errormsg[] = Config::lang('pCreate_mailbox_username_text_error3');
return false;
}
# check if an alias with this name already exists - if yes, don't allow to create the mailbox
$handler = new AliasHandler(1);
$handler->calledBy('MailboxHandler'); # make sure mailbox creation still works if the alias limit for the domain is hit
if (!$handler->init($this->id)) {
# TODO: keep original error message from AliasHandler
$this->errormsg[] = Config::lang('email_address_already_exists');
return false;
}
return true; # still here? good!
}
/**
* check number of existing mailboxes for this domain - is one more allowed?
*/
private function create_allowed($domain) {
$limit = get_domain_properties($domain);
if ($limit['mailboxes'] == 0) {
return true;
} # unlimited
if ($limit['mailboxes'] < 0) {
return false;
} # disabled
if ($limit['mailbox_count'] >= $limit['mailboxes']) {
return false;
}
return true;
}
/**
* merge local_part and domain to address
* called by edit.php (if id_field is editable and hidden in editform) _before_ ->init
*/
public function mergeId($values) {
if ($this->struct['local_part']['display_in_form'] == 1 && $this->struct['domain']['display_in_form']) { # webform mode - combine to 'address' field
return $values['local_part'] . '@' . $values['domain'];
} else {
return $values[$this->id_field];
}
}
protected function read_from_db_postprocess($db_result) {
foreach ($db_result as $key => $row) {
if (isset($row['quota']) && is_numeric($row['quota']) && $row['quota'] > -1) { # quota could be disabled in $struct
$db_result[$key]['quotabytes'] = $row['quota'];
$db_result[$key]['quota'] = divide_quota($row['quota']); # convert quota to MB
} else {
$db_result[$key]['quotabytes'] = -1;
$db_result[$key]['quota'] = -1;
}
}
return $db_result;
}
protected function beforestore() {
if (isset($this->values['quota']) && $this->values['quota'] != -1) {
$multiplier = Config::read('quota_multiplier');
if ($multiplier == 0 || !is_numeric($multiplier)) { // or empty string, or null, or false...
$multiplier = 1;
}
$this->values['quota'] = $this->values['quota'] * $multiplier; # convert quota from MB to bytes
}
$ah = new AliasHandler($this->new, $this->admin_username);
$ah->calledBy('MailboxHandler');
if (!$ah->init($this->id)) {
$arraykeys = array_keys($ah->errormsg);
$this->errormsg[] = $ah->errormsg[$arraykeys[0]]; # TODO: implement this as PFAHandler->firstErrormsg()
return false;
}
$alias_data = array();
if (isset($this->values['active'])) { # might not be set in edit mode
$alias_data['active'] = $this->values['active'];
}
if ($this->new) {
$alias_data['goto'] = array($this->id); # 'goto_mailbox' = 1; # would be technically correct, but setting 'goto' is easier
}
if (!$ah->set($alias_data)) {
$this->errormsg[] = $ah->errormsg[0];
return false;
}
if (!$ah->store()) {
$this->errormsg[] = $ah->errormsg[0];
return false;
}
return true; # still here? good!
}
protected function storemore() {
if ($this->new) {
if (!$this->mailbox_post_script()) {
# return false; # TODO: should this be fatal?
}
if ($this->values['welcome_mail'] == true) {
if (!$this->send_welcome_mail()) {
# return false; # TODO: should this be fatal?
}
}
if (!$this->create_mailbox_subfolders()) {
$this->infomsg[] = Config::lang_f('pCreate_mailbox_result_succes_nosubfolders', $this->id);
}
} else { # edit mode
# alias active status is updated in before_store()
# postedit hook
# TODO: implement a poststore() function? - would make handling of old and new values much easier...
$old_mh = new MailboxHandler();
if (!$old_mh->init($this->id)) {
$this->errormsg[] = $old_mh->errormsg[0];
} elseif (!$old_mh->view()) {
$this->errormsg[] = $old_mh->errormsg[0];
} else {
$oldvalues = $old_mh->result();
$this->values['maildir'] = $oldvalues['maildir'];
if (isset($this->values['quota'])) {
$quota = $this->values['quota'];
} else {
$quota = $oldvalues['quota'];
}
if (!$this->mailbox_post_script()) {
# TODO: should this be fatal?
}
}
}
return true; # even if a hook failed, mark the overall operation as OK
}
public function delete() {
if (! $this->view()) {
$this->errormsg[] = Config::Lang('pFetchmail_invalid_mailbox'); # TODO: can users hit this message at all? init() should already fail...
return false;
}
# the correct way would be to delete the alias and fetchmail entries with *Handler before
# deleting the mailbox, but it's easier and a bit faster to do it on the database level.
# cleaning up all tables doesn't hurt, even if vacation or displaying the quota is disabled
db_delete('fetchmail', 'mailbox', $this->id);
db_delete('vacation', 'email', $this->id);
db_delete('vacation_notification', 'on_vacation', $this->id); # should be caught by cascade, if PgSQL
db_delete('quota', 'username', $this->id);
db_delete('quota2', 'username', $this->id);
db_delete('alias', 'address', $this->id);
db_delete($this->db_table, $this->id_field, $this->id); # finally delete the mailbox
if (!$this->mailbox_postdeletion()) {
$this->error_msg[] = Config::Lang('mailbox_postdel_failed');
}
list(/*NULL*/, $domain) = explode('@', $this->id);
db_log($domain, 'delete_mailbox', $this->id);
$this->infomsg[] = Config::Lang_f('pDelete_delete_success', $this->id);
return true;
}
protected function _prefill_domain($field, $val) {
if (in_array($val, $this->struct[$field]['options'])) {
$this->struct[$field]['default'] = $val;
$this->updateMaxquota($val, 0);
}
}
/**
* check if quota is allowed
*/
protected function _validate_quota($field, $val) {
if (!$this->check_quota($val)) {
$this->errormsg[$field] = Config::lang('pEdit_mailbox_quota_text_error');
return false;
}
return true;
}
/**
* - compare password / password2 field (error message will be displayed at password2 field)
* - autogenerate password if enabled in config and $new
* - display password on $new if enabled in config or autogenerated
*/
protected function _validate_password($field, $val) {
if (!$this->_validate_password2($field, $val)) {
return false;
}
if ($this->new && Config::read('generate_password') == 'YES' && $val == '') {
# auto-generate new password
unset($this->errormsg[$field]); # remove "password too short" error message
$val = generate_password();
$this->values[$field] = $val; # we are doing this "behind the back" of set()
$this->infomsg[] = Config::Lang('password') . ": $val";
return false; # to avoid that set() overwrites $this->values[$field]
} elseif ($this->new && Config::read('show_password') == 'YES') {
$this->infomsg[] = Config::Lang('password') . ": $val";
}
return true; # still here? good.
}
/**
* compare password / password2 field
* error message will be displayed at the password2 field
*/
protected function _validate_password2($field, $val) {
return $this->compare_password_fields('password', 'password2');
}
/**
* on $this->new, set localpart based on address
*/
protected function _missing_local_part($field) {
list($local_part, $domain) = explode('@', $this->id);
$this->RAWvalues['local_part'] = $local_part;
}
/**
* on $this->new, set domain based on address
*/
protected function _missing_domain($field) {
list($local_part, $domain) = explode('@', $this->id);
$this->RAWvalues['domain'] = $domain;
}
# TODO: read used quota from quota/quota2 table, then enable _formatted_quota()
# public function _formatted_quota ($item) { return $item['used_quota'] . ' / ' . $item['quota'] ; }
/**
* calculate maildir path for the mailbox
*/
protected function _missing_maildir($field) {
list($local_part, $domain) = explode('@', $this->id);
$maildir_name_hook = Config::read('maildir_name_hook');
if ($maildir_name_hook != 'NO' && function_exists($maildir_name_hook)) {
$maildir = $maildir_name_hook($domain, $this->id);
} elseif (Config::bool('domain_path')) {
if (Config::bool('domain_in_mailbox')) {
$maildir = $domain . "/" . $this->id . "/";
} else {
$maildir = $domain . "/" . $local_part . "/";
}
} else {
# If $CONF['domain_path'] is set to NO, $CONF['domain_in_mailbox] is forced to YES.
# Otherwise user@example.com and user@foo.bar would be mixed up in the same maildir "user/".
$maildir = $this->id . "/";
}
$this->RAWvalues['maildir'] = $maildir;
}
private function send_welcome_mail() {
$fTo = $this->id;
$fFrom = smtp_get_admin_email();
if (empty($fFrom) || $fFrom == 'CLI') {
$fFrom = $this->id;
}
$fSubject = Config::lang('pSendmail_subject_text');
$fBody = Config::read('welcome_text');
if (!smtp_mail($fTo, $fFrom, $fSubject, $fBody)) {
$this->errormsg[] = Config::lang_f('pSendmail_result_error', $this->id);
return false;
}
return true;
}
/**
* Check if the user is creating a mailbox within the quota limits of the domain
*
* @param Integer $quota - quota wanted for the mailbox
* @return Boolean - true if requested quota is OK, otherwise false
*/
# TODO: merge with allowed_quota?
protected function check_quota($quota) {
$rval = false;
if (!Config::bool('quota')) {
return true; # enforcing quotas is disabled - just allow it
}
list(/*NULL*/, $domain) = explode('@', $this->id);
$limit = get_domain_properties($domain);
if ($limit['maxquota'] == 0) {
$rval = true; # maxquota unlimited -> OK, but domain level quota could still be hit
}
if (($limit['maxquota'] < 0) and ($quota < 0)) {
return true; # maxquota and $quota are both disabled -> OK, no need for more checks
}
if (($limit['maxquota'] > 0) and ($quota == 0)) {
return false; # mailbox with unlimited quota on a domain with maxquota restriction -> not allowed, no more checks needed
}
if ($limit['maxquota'] != 0 && $quota > $limit['maxquota']) {
return false; # mailbox bigger than maxquota restriction (and maxquota != unlimited) -> not allowed, no more checks needed
} else {
$rval = true; # mailbox size looks OK, but domain level quota could still be hit
}
if (!$rval) {
return false; # over quota - no need to check domain_quota
}
# TODO: detailed error message ("domain quota exceeded", "mailbox quota too big" etc.) via flash_error? Or "available quota: xxx MB"?
if (!Config::bool('domain_quota')) {
return true; # enforcing domain_quota is disabled - just allow it
} elseif ($limit['quota'] <= 0) { # TODO: CHECK - 0 (unlimited) is fine, not sure about <= -1 (disabled)...
$rval = true;
} elseif ($quota == 0) { # trying to create an unlimited mailbox, but domain quota is set
return false;
} else {
$table_mailbox = table_by_key('mailbox');
$query = "SELECT SUM(quota) FROM $table_mailbox WHERE domain = '" . escape_string($domain) . "'";
$query .= " AND username != '" . escape_string($this->id) . "'";
$result = db_query($query);
$row = db_row($result['result']);
$cur_quota_total = divide_quota($row[0]); # convert to MB
if (($quota + $cur_quota_total) > $limit['quota']) {
$rval = false;
} else {
$rval = true;
}
}
return $rval;
}
/**
* Get allowed maximum quota for a mailbox
*
* @param String $domain
* @param Integer $current_user_quota (in bytes)
* @return Integer allowed maximum quota (in MB)
*/
protected function allowed_quota($domain, $current_user_quota) {
if (!Config::bool('quota')) {
return 0; # quota disabled means no limits - no need for more checks
}
$domain_properties = get_domain_properties($domain);
$tMaxquota = $domain_properties['maxquota'];
if (Config::bool('domain_quota') && $domain_properties['quota']) {
$dquota = $domain_properties['quota'] - $domain_properties['total_quota'] + divide_quota($current_user_quota);
if ($dquota < $tMaxquota) {
$tMaxquota = $dquota;
}
if ($tMaxquota == 0) {
$tMaxquota = $dquota;
}
}
return $tMaxquota;
}
/**
* Called after a mailbox has been created or edited in the DBMS.
*
* @return Boolean success/failure status
*/
protected function mailbox_post_script() {
if ($this->new) {
$cmd = Config::read('mailbox_postcreation_script');
$warnmsg = Config::Lang('mailbox_postcreate_failed');
} else {
$cmd = Config::read('mailbox_postedit_script');
$warnmsg = Config::Lang('mailbox_postedit_failed');
}
if (empty($cmd)) {
return true;
} # nothing to do
list(/*NULL*/, $domain) = explode('@', $this->id);
$quota = $this->values['quota'];
if (empty($this->id) || empty($domain) || empty($this->values['maildir'])) {
trigger_error('In '.__FUNCTION__.': empty username, domain and/or maildir parameter', E_USER_ERROR);
return false;
}
$cmdarg1=escapeshellarg($this->id);
$cmdarg2=escapeshellarg($domain);
$cmdarg3=escapeshellarg($this->values['maildir']);
if ($quota <= 0) {
$quota = 0;
} # TODO: check if this is correct behaviour
$cmdarg4=escapeshellarg($quota);
$command= "$cmd $cmdarg1 $cmdarg2 $cmdarg3 $cmdarg4";
$retval=0;
$output=array();
$firstline='';
$firstline=exec($command, $output, $retval);
if (0!=$retval) {
error_log("Running $command yielded return value=$retval, first line of output=$firstline");
$this->errormsg[] = $warnmsg;
return false;
}
return true;
}
/**
* Called after a mailbox has been deleted
*
* @return boolean true on success, false on failure
* also adds a detailed error message to $this->errormsg[]
*/
protected function mailbox_postdeletion() {
$cmd = Config::read('mailbox_postdeletion_script');
if (empty($cmd)) {
return true;
}
list(/*NULL*/, $domain) = explode('@', $this->id);
if (empty($this->id) || empty($domain)) {
$this->errormsg[] = 'Empty username and/or domain parameter in mailbox_postdeletion';
return false;
}
$cmdarg1=escapeshellarg($this->id);
$cmdarg2=escapeshellarg($domain);
$command = "$cmd $cmdarg1 $cmdarg2";
$retval=0;
$output=array();
$firstline='';
$firstline=exec($command, $output, $retval);
if (0!=$retval) {
error_log("Running $command yielded return value=$retval, first line of output=$firstline");
$this->errormsg[] = 'Problems running mailbox postdeletion script!';
return false;
}
return true;
}
/**
* Called by storemore() after a mailbox has been created.
* Immediately returns, unless configuration indicates
* that one or more sub-folders should be created.
*
* Triggers E_USER_ERROR if configuration error is detected.
*
* If IMAP login fails, the problem is logged to the system log
* (such as /var/log/httpd/error_log), and the function returns
* FALSE.
*
* Doesn't clean up, if only some of the folders could be
* created.
*
* @return Boolean TRUE if everything succeeds, FALSE on all errors
*/
protected function create_mailbox_subfolders() {
$create_mailbox_subdirs = Config::read('create_mailbox_subdirs');
if (empty($create_mailbox_subdirs)) {
return true;
}
if (!is_array($create_mailbox_subdirs)) {
trigger_error('create_mailbox_subdirs must be an array', E_USER_ERROR);
return false;
}
$s_host = Config::read('create_mailbox_subdirs_host');
if (empty($s_host)) {
trigger_error('An IMAP/POP server host ($CONF["create_mailbox_subdirs_host"]) must be configured, if sub-folders are to be created', E_USER_ERROR);
return false;
}
$s_options='';
$create_mailbox_subdirs_hostoptions = Config::read('create_mailbox_subdirs_hostoptions');
if (!empty($create_mailbox_subdirs_hostoptions)) {
if (!is_array($create_mailbox_subdirs_hostoptions)) {
trigger_error('The $CONF["create_mailbox_subdirs_hostoptions"] parameter must be an array', E_USER_ERROR);
return false;
}
foreach ($create_mailbox_subdirs_hostoptions as $o) {
$s_options.='/'.$o;
}
}
$s_port='';
$create_mailbox_subdirs_hostport = Config::read('create_mailbox_subdirs_hostport');
if (!empty($create_mailbox_subdirs_hostport)) {
$s_port = $create_mailbox_subdirs_hostport;
if (intval($s_port)!=$s_port) {
trigger_error('The $CONF["create_mailbox_subdirs_hostport"] parameter must be an integer', E_USER_ERROR);
return false;
}
$s_port=':'.$s_port;
}
$s='{'.$s_host.$s_port.$s_options.'}';
sleep(1); # give the mail triggering the mailbox creation a chance to do its job
$i=@imap_open($s, $this->id, $this->values['password']);
if (false==$i) {
error_log('Could not log into IMAP/POP server: ' . $this->id . ': ' . imap_last_error());
return false;
}
$s_prefix = Config::read('create_mailbox_subdirs_prefix');
foreach ($create_mailbox_subdirs as $f) {
$f='{'.$s_host.'}'.$s_prefix.$f;
$res=imap_createmailbox($i, $f);
if (!$res) {
error_log('Could not create IMAP folder $f: ' . $this->id . ': ' . imap_last_error());
@imap_close($i);
return false;
}
@imap_subscribe($i, $f);
}
@imap_close($i);
return true;
}
/********************************************************************************************************************
old functions - we'll see what happens to them
(at least they should use the *Handler functions instead of doing SQL)
/********************************************************************************************************************/
/**
* @return boolean true on success; false on failure
* @param string $old_password
* @param string $new_passwords
* @param bool $match = true
*
* All passwords need to be plain text; they'll be hashed appropriately
* as per the configuration in config.inc.php
*/
public function change_pw($new_password, $old_password, $match = true) {
list(/*NULL*/, $domain) = explode('@', $this->id);
if ($match == true) {
if (!$this->login($this->id, $old_password)) {
db_log($domain, 'edit_password', "MATCH FAILURE: " . $this->id);
$this->errormsg[] = Config::Lang('pPassword_password_current_text_error');
return false;
}
}
$set = array(
'password' => pacrypt($new_password) ,
);
$result = db_update('mailbox', 'username', $this->id, $set);
if ($result != 1) {
db_log($domain, 'edit_password', "FAILURE: " . $this->id);
$this->errormsg[] = Config::lang('pEdit_mailbox_result_error');
return false;
}
db_log($domain, 'edit_password', $this->id);
return true;
}
#TODO: more self explaining language strings!
}
/* vim: set expandtab softtabstop=4 tabstop=4 shiftwidth=4: */