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438 lines
18 KiB
PHP
438 lines
18 KiB
PHP
<?php
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/**
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* Class that represents an account on a server
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*/
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class ServerAccount extends Entity {
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/**
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* Defines the database table that this object is stored in
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*/
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protected $table = 'server_account';
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/**
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* Defines the field that is the primary key of the table
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*/
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protected $idfield = 'entity_id';
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/**
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* Magic getter method - if server field requested, return Server object
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* @param string $field to retrieve
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* @return mixed data stored in field
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*/
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public function &__get($field) {
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global $user_dir;
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switch($field) {
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case 'server':
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$server = new Server($this->server_id);
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return $server;
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default:
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return parent::__get($field);
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}
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}
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/**
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* Write property changes to database and log the changes.
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* Triggers a resync of the server if account is activated/deactivated.
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*/
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public function update() {
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global $config;
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// Make it impossible to set default accounts to inactive
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if(is_array($config['defaults']['account_groups'])) {
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if(array_key_exists($this->data['name'], $config['defaults']['account_groups'])) {
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$this->data['active'] = true;
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}
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}
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$changes = parent::update();
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$resync = false;
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foreach($changes as $change) {
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$loglevel = LOG_INFO;
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switch($change->field) {
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case 'active':
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if($this->sync_status != 'proposed') {
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$resync = true;
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}
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if($change->new_value == 1) $loglevel = LOG_WARNING;
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break;
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}
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$this->log(array('action' => 'Setting update', 'value' => $change->new_value, 'oldvalue' => $change->old_value, 'field' => ucfirst(str_replace('_', ' ', $change->field))), $loglevel);
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}
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if($resync) {
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$this->server->sync_access();
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$this->sync_remote_access();
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}
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}
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/**
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* List all log events for this server account.
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* @return array of ServerAccountEvent objects
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*/
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public function get_log() {
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if(is_null($this->id)) throw new BadMethodCallException('Server account must be in directory before log entries can be listed');
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$stmt = $this->database->prepare("
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SELECT *
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FROM entity_event
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WHERE entity_id = ?
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ORDER BY id DESC
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");
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$stmt->bind_param('d', $this->id);
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$stmt->execute();
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$result = $stmt->get_result();
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$log = array();
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while($row = $result->fetch_assoc()) {
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$log[] = new ServerAccountEvent($row['id'], $row);
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}
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$stmt->close();
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return $log;
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}
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/**
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* Add the specified user as an administrator of the account.
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* This action is logged with a warning level as it is increasing an access level.
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* @param User $user to add as administrator
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*/
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public function add_admin(User $user) {
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global $config;
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parent::add_admin($user);
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$url = $config['web']['baseurl'].'/servers/'.urlencode($this->server->hostname).'/accounts/'.urlencode($this->name);
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$email = new Email;
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$email->subject = "Administrator for {$this->name}@{$this->server->hostname}";
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$email->add_cc($config['email']['report_address'], $config['email']['report_name']);
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$email->add_recipient($user->email, $user->name);
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$email->body = "{$this->active_user->name} ({$this->active_user->uid}) has added you as an administrator for the '{$this->name}' account on {$this->server->hostname}. You can administer access to this account from <$url>";
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$email->send();
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$this->log(array('action' => 'Administrator add', 'value' => "user:{$user->uid}"), LOG_WARNING);
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}
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/**
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* Remove the specified user as an administrator of the account.
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* This action is logged with a warning level as it means the removed user will no longer
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* receive notifications for any changes done to this account.
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* @param User $user to remove as administrator
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*/
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public function delete_admin(User $user) {
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parent::delete_admin($user);
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$this->log(array('action' => 'Administrator remove', 'value' => "user:{$user->uid}"), LOG_WARNING);
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}
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/**
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* Add a public key to this account for use with any outbound access rules that apply to it.
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* An email is sent to the server admins and sec-ops to inform them of the change.
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* This action is logged with a warning level as it is potentially granting SSH access with the key.
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* @param PublicKey $key to be added
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*/
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public function add_public_key(PublicKey $key) {
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global $config;
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parent::add_public_key($key);
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if($this->active_user->uid != 'import-script') {
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$url = $config['web']['baseurl'].'/pubkeys/'.urlencode($key->id);
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$email = new Email;
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$email->add_reply_to($config['email']['admin_address'], $config['email']['admin_name']);
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foreach($this->server->list_effective_admins() as $admin) {
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$email->add_recipient($admin->email, $admin->name);
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}
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$email->add_cc($config['email']['report_address'], $config['email']['report_name']);
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$email->subject = "A new SSH public key has been added to the account {$this->name}@{$this->server->hostname} by {$this->active_user->uid}";
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$email->body = "A new SSH public key has been added to the account {$this->name}@{$this->server->hostname} on SSH Key Authority. The key was added by {$this->active_user->name} ({$this->active_user->uid}).\n\nIf this key was added without your knowledge, please contact {$config['email']['admin_address']} immediately.\n\n".$key->summarize_key_information();
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$email->send();
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}
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$this->log(array('action' => 'Pubkey add', 'value' => $key->fingerprint_md5), LOG_WARNING);
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}
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/**
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* Delete the specified public key from this account.
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* @param PublicKey $key to be removed
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*/
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public function delete_public_key(PublicKey $key) {
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parent::delete_public_key($key);
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$this->log(array('action' => 'Pubkey remove', 'value' => $key->fingerprint_md5));
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}
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/**
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* Request access for the specified entity (User/ServerAccount/Group) to this account.
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* Stores the request and sends an email to the account admins and server admins notifying them of it.
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* @param Entity $entity to request access for
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*/
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public function add_access_request(Entity $entity) {
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global $config;
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if(is_null($this->entity_id)) throw new BadMethodCallException('Server account must be added to server before access can be requested');
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try {
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$request = new AccessRequest;
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$request->dest_entity_id = $this->entity_id;
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$request->source_entity_id = $entity->entity_id;
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$request->requested_by = $this->active_user->entity_id;
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$stmt = $this->database->prepare("INSERT INTO access_request SET dest_entity_id = ?, source_entity_id = ?, request_date = UTC_TIMESTAMP(), requested_by = ?");
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$stmt->bind_param('ddd', $request->dest_entity_id, $request->source_entity_id, $request->requested_by);
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$stmt->execute();
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$request->id = $stmt->insert_id;
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$stmt->close();
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switch(get_class($entity)) {
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case 'User':
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$this->log(array('action' => 'Access request', 'value' => "user:{$entity->uid}"));
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break;
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case 'ServerAccount':
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$this->log(array('action' => 'Access request', 'value' => "account:{$entity->name}@{$entity->server->hostname}"));
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break;
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case 'Group':
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$this->log(array('action' => 'Access request', 'value' => "group:{$entity->name}"));
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break;
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}
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$account_admins = $this->list_admins();
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$server_admins = $this->server->list_effective_admins();
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if($this->active_user->uid != 'import-script') {
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$email = new Email;
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$email->add_reply_to($this->active_user->email, $this->active_user->name);
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if(count($account_admins) == 0) {
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foreach($server_admins as $admin) {
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$email->add_recipient($admin->email, $admin->name);
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}
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} else {
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foreach($account_admins as $admin) {
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$email->add_recipient($admin->email, $admin->name);
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}
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foreach($server_admins as $admin) {
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$email->add_cc($admin->email, $admin->name);
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}
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}
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$url = $config['web']['baseurl'].'/servers/'.urlencode($this->server->hostname).'/accounts/'.urlencode($this->name);
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switch(get_class($entity)) {
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case 'User':
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$email->subject = "{$entity->uid} requests access to {$this->name}@{$this->server->hostname}";
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$email->body = "{$entity->name} ({$entity->uid}) has requested access to {$this->name}@{$this->server->hostname}. View this request at <$url>";
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break;
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case 'ServerAccount':
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$email->subject = "{$this->active_user->uid} requests {$entity->name}@{$entity->server->hostname} access to {$this->name}@{$this->server->hostname}";
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$email->body = "{$this->active_user->name} ({$this->active_user->uid}) has requested that {$entity->name}@{$entity->server->hostname} have server-to-server access to {$this->name}@{$this->server->hostname}. View this request at <$url>";
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break;
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case 'Group':
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$email->subject = "{$this->active_user->uid} requests {$entity->name} group access to {$this->name}@{$this->server->hostname}";
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$email->body = "{$this->active_user->name} ({$this->active_user->uid}) has requested that the {$entity->name} group have access to {$this->name}@{$this->server->hostname}. View this request at <$url>";
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break;
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}
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$email->send();
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}
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} catch(mysqli_sql_exception $e) {
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if($e->getCode() == 1062) {
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// Duplicate entry - ignore
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} else {
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throw $e;
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}
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}
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}
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/**
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* Approve a request for access to this account.
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* For user access, sends an email to the requester informing them of the approval.
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* Triggers add_access() and deletes the request from the DB.
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* @todo send emails for all access types
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* @param AccessRequest $request details
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*/
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public function approve_access_request(AccessRequest $request) {
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if(is_null($this->entity_id)) throw new BadMethodCallException('Server account must be added to server before access can be approved');
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$entity = $request->source_entity;
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switch(get_class($entity)) {
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case 'User':
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$this->log(array('action' => 'Access approve', 'value' => "user:{$entity->uid}"));
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$email = new Email;
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$email->add_recipient($entity->email, $entity->name);
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$email->subject = "Your request for access to {$this->name}@{$this->server->hostname} has been approved";
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$email->body = "You requested access to {$this->name}@{$this->server->hostname}, and this request has now been approved by {$this->active_user->name} ({$this->active_user->uid}).";
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$email->send();
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break;
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case 'ServerAccount':
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$this->log(array('action' => 'Access approve', 'value' => "account:{$entity->name}@{$entity->server->hostname}"));
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break;
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case 'Group':
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$this->log(array('action' => 'Access approve', 'value' => "group:{$entity->name}"));
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break;
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}
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$options = array();
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$this->add_access($entity, $options);
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$stmt = $this->database->prepare("DELETE FROM access_request WHERE dest_entity_id = ? AND id = ?");
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$stmt->bind_param('dd', $this->entity_id, $request->id);
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$stmt->execute();
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$stmt->close();
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}
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/**
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* Reject a request for access to this account.
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* For user access, sends an email to the requester informing them of the rejection.
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* Deletes the request from the DB. If the account was created as the result of a request and
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* there are no other pending access requests for the account, deactivate the account.
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* @todo send emails for all access types
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* @param AccessRequest $request details
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*/
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public function reject_access_request(AccessRequest $request) {
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if(is_null($this->entity_id)) throw new BadMethodCallException('Server account must be added to server before access can be rejected');
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$entity = $request->source_entity;
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switch(get_class($entity)) {
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case 'User':
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$this->log(array('action' => 'Access reject', 'value' => "user:{$entity->uid}"));
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$email = new Email;
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$email->add_recipient($entity->email, $entity->name);
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$email->subject = "Your request for access to {$this->name}@{$this->server->hostname} has been rejected";
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$email->body = "You requested access to {$this->name}@{$this->server->hostname}, but this request has been rejected by {$this->active_user->name} ({$this->active_user->uid}).";
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$email->send();
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break;
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case 'ServerAccount':
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$this->log(array('action' => 'Access reject', 'value' => "account:{$entity->name}@{$entity->server->hostname}"));
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break;
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case 'Group':
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$this->log(array('action' => 'Access reject', 'value' => "group:{$entity->name}"));
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break;
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}
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$stmt = $this->database->prepare("DELETE FROM access_request WHERE dest_entity_id = ? AND id = ?");
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$stmt->bind_param('dd', $this->entity_id, $request->id);
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$stmt->execute();
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$stmt->close();
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if($this->sync_status == 'proposed') {
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if(count($this->list_access_requests()) == 0) {
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$this->active = 0;
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$this->update();
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}
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}
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}
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/**
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* Grant the specified entity (User/ServerAccount/Group) access to this server account.
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* An email is sent to the account admins, server admins and sec-ops to inform them of the change.
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* This action is logged with a warning level as it is granting access.
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* @param Entity $entity to add as a group member
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* @param array $access_options array of AccessOption rules to apply to the granted access
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*/
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public function add_access(Entity $entity, array $access_options) {
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global $config;
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if(is_null($this->entity_id)) throw new BadMethodCallException('Server account must be added to server before access can be added');
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if($this->sync_status == 'proposed') {
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$this->sync_status = 'not synced yet';
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$this->update();
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}
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try {
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$access = new Access;
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$access->dest_entity_id = $this->entity_id;
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$access->source_entity_id = $entity->entity_id;
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$access->granted_by = $this->active_user->entity_id;
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$stmt = $this->database->prepare("INSERT INTO access SET dest_entity_id = ?, source_entity_id = ?, grant_date = UTC_TIMESTAMP(), granted_by = ?");
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$stmt->bind_param('ddd', $access->dest_entity_id, $access->source_entity_id, $access->granted_by);
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$stmt->execute();
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$access->id = $stmt->insert_id;
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$stmt->close();
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switch(get_class($entity)) {
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case 'User':
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$this->log(array('action' => 'Access add', 'value' => "user:{$entity->uid}"), LOG_WARNING);
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$mailsubject = "Access granted for {$entity->uid} to {$this->name}@{$this->server->hostname} by {$this->active_user->uid}";
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$mailbody = "{$entity->name} ({$entity->uid}) has been granted access to {$this->name}@{$this->server->hostname} by {$this->active_user->name} ({$this->active_user->uid}). The changes will be synced to the server within a few seconds.";
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break;
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case 'ServerAccount':
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$this->log(array('action' => 'Access add', 'value' => "account:{$entity->name}@{$entity->server->hostname}"), LOG_WARNING);
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$mailsubject = "Access granted for {$entity->name}@{$entity->server->hostname} to {$this->name}@{$this->server->hostname} by {$this->active_user->uid}";
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$mailbody = "{$entity->name}@{$entity->server->hostname} has been granted server-to-server access to {$this->name}@{$this->server->hostname} by {$this->active_user->name} ({$this->active_user->uid}). The changes will be synced to the server within a few seconds.";
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break;
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case 'Group':
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$this->log(array('action' => 'Access add', 'value' => "group:{$entity->name}"), LOG_WARNING);
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$mailsubject = "Access granted for {$entity->name} group to {$this->name}@{$this->server->hostname} by {$this->active_user->uid}";
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$mailbody = "The {$entity->name} group has been granted access to {$this->name}@{$this->server->hostname} by {$this->active_user->name} ({$this->active_user->uid}). The changes will be synced to the server within a few seconds.";
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break;
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}
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if($this->active_user->uid != 'import-script') {
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$account_admins = $this->list_admins();
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$server_admins = $this->server->list_effective_admins();
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$email = new Email;
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if(count($account_admins) == 0) {
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foreach($server_admins as $admin) {
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$email->add_recipient($admin->email, $admin->name);
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}
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} else {
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foreach($account_admins as $admin) {
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$email->add_recipient($admin->email, $admin->name);
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}
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foreach($server_admins as $admin) {
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$email->add_cc($admin->email, $admin->name);
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}
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}
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$email->add_cc($config['email']['report_address'], $config['email']['report_name']);
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$email->subject = $mailsubject;
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$email->body = $mailbody;
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$email->send();
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}
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foreach($access_options as $access_option) {
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$access->add_option($access_option);
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}
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} catch(mysqli_sql_exception $e) {
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if($e->getCode() == 1062) {
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// Duplicate entry - ignore
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} else {
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throw $e;
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}
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}
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$this->sync_access();
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}
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/**
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* Revoke the specified access rule for this account.
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* @param Access $access rule to be removed
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*/
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public function delete_access(Access $access) {
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if(is_null($this->entity_id)) throw new BadMethodCallException('Server account must be added to server before access can be deleted');
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$entity = $access->source_entity;
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switch(get_class($entity)) {
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case 'User':
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$this->log(array('action' => 'Access remove', 'value' => "user:{$entity->uid}"));
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break;
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case 'ServerAccount':
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$this->log(array('action' => 'Access remove', 'value' => "account:{$entity->name}@{$entity->server->hostname}"));
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break;
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case 'Group':
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$this->log(array('action' => 'Access remove', 'value' => "group:{$entity->name}"));
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break;
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}
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$stmt = $this->database->prepare("DELETE FROM access WHERE dest_entity_id = ? AND id = ?");
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$stmt->bind_param('dd', $this->entity_id, $access->id);
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$stmt->execute();
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$stmt->close();
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$this->sync_access();
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}
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/**
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* List all groups that this account is a member of.
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* @return array of Group objects
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*/
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public function list_group_membership() {
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global $group_dir;
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return $group_dir->list_group_membership($this);
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}
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/**
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* Trigger a sync for this account.
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*/
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public function sync_access() {
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global $sync_request_dir;
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$sync_request = new SyncRequest;
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$sync_request->server_id = $this->server_id;
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$sync_request->account_name = $this->name;
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$sync_request_dir->add_sync_request($sync_request);
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}
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/**
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* Determine if a sync is currently pending for this account.
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* @return boolean true if a sync is pending
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*/
|
|
public function sync_is_pending() {
|
|
$stmt = $this->database->prepare("SELECT * FROM sync_request WHERE server_id = ? AND (account_name = ? OR account_name IS NULL) ORDER BY account_name");
|
|
$stmt->bind_param('ds', $this->server_id, $this->name);
|
|
$stmt->execute();
|
|
$result = $stmt->get_result();
|
|
return $result->num_rows > 0;
|
|
}
|
|
|
|
/**
|
|
* Update the sync status for the account.
|
|
* @param string $status "sync success", "sync failure" or "sync warning"
|
|
*/
|
|
public function sync_report($status) {
|
|
if(is_null($this->id)) throw new BadMethodCallException('Server account must be in directory before sync reporting can be done');
|
|
if($this->sync_status != 'proposed') {
|
|
$this->sync_status = $status;
|
|
$this->update();
|
|
}
|
|
}
|
|
}
|