Example #1
0
function schedule_backup_launch_inc_backup($course, $starttime = 0, $preferences = '')
{
    global $CFG;
    $status = false;
    mtrace("            Executing backup");
    backup_add_to_log($starttime, $course->id, "Start backup course {$course->fullname}", 'incrementalbackup');
    backup_add_to_log($starttime, $course->id, "  Phase 1: Checking and counting:", 'incrementalbackup');
    if (empty($preferences)) {
        $preferences = schedule_inc_backup_course_configure($course, $starttime);
    }
    if ($preferences) {
        backup_add_to_log($starttime, $course->id, "  Phase 2: Executing and copying:", 'incrementalbackup');
        $status = schedule_inc_backup_course_execute($preferences, $starttime);
    }
    if ($status && $preferences) {
        //Only if the backup_sche_keep is set
        if ($preferences->backup_keep) {
            backup_add_to_log($starttime, $course->id, "  Phase 3: Deleting old backup files:", 'incrementalbackup');
            $status = schedule_inc_backup_course_delete_old_files($preferences, $starttime);
        }
    }
    if ($status && $preferences) {
        if ($preferences->backup_sche_incrementals) {
            mtrace("            Generating Incrementals");
            //generate incrementals for this course.
            require_once "{$CFG->libdir}/xdelta.class.php";
            require_once "incremental_backuplib.php";
            backup_add_to_log($starttime, $course->id, "  Phase 4: Generating Incrementals:", 'incrementalbackup');
            $status = generate_incrementals($preferences->backup_course);
        }
    }
    if ($status && $preferences) {
        mtrace("            End backup OK");
        backup_add_to_log($starttime, $course->id, "End backup course {$course->fullname} - OK", 'incrementalbackup');
    } else {
        mtrace("            End backup with ERROR");
        backup_add_to_log($starttime, $course->id, "End backup course {$course->fullname} - ERROR!!", 'incrementalbackup');
    }
    return $status && $preferences;
}
Example #2
0
function backup_execute(&$preferences, &$errorstr)
{
    global $CFG;
    $status = true;
    //Check for temp and backup and backup_unique_code directory
    //Create them as needed
    if (!defined('BACKUP_SILENTLY')) {
        echo "<li>" . get_string("creatingtemporarystructures") . '</li>';
    }
    $status = check_and_create_backup_dir($preferences->backup_unique_code);
    //Empty dir
    if ($status) {
        $status = clear_backup_dir($preferences->backup_unique_code);
    }
    //Delete old_entries from backup tables
    if (!defined('BACKUP_SILENTLY')) {
        echo "<li>" . get_string("deletingolddata") . '</li>';
    }
    $status = backup_delete_old_data();
    if (!$status) {
        $errorstr = "An error occurred deleting old backup data";
        backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
        if (!defined('BACKUP_SILENTLY')) {
            notify($errorstr);
        }
    }
    //Create the moodle.xml file
    if ($status) {
        if (!defined('BACKUP_SILENTLY')) {
            echo "<li>" . get_string("creatingxmlfile");
            //Begin a new list to xml contents
            echo "<ul>";
            echo "<li>" . get_string("writingheader") . '</li>';
        }
        //Obtain the xml file (create and open) and print prolog information
        $backup_file = backup_open_xml($preferences->backup_unique_code);
        if (!defined('BACKUP_SILENTLY')) {
            echo "<li>" . get_string("writinggeneralinfo") . '</li>';
        }
        //Prints general info about backup to file
        if ($backup_file) {
            if (!($status = backup_general_info($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up general info";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        if (!defined('BACKUP_SILENTLY')) {
            echo "<li>" . get_string("writingcoursedata");
            //Start new ul (for course)
            echo "<ul>";
            echo "<li>" . get_string("courseinfo") . '</li>';
        }
        //Prints course start (tag and general info)
        if ($status) {
            if (!($status = backup_course_start($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up course start";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        //Metacourse information
        if ($status && $preferences->backup_metacourse) {
            if (!defined('BACKUP_SILENTLY')) {
                echo "<li>" . get_string("metacourse") . '</li>';
            }
            if (!($status = backup_course_metacourse($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up metacourse info";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        if (!defined('BACKUP_SILENTLY')) {
            echo "<li>" . get_string("blocks") . '</li>';
        }
        //Blocks information
        if ($status) {
            if (!($status = backup_course_blocks($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up course blocks";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        if (!defined('BACKUP_SILENTLY')) {
            echo "<li>" . get_string("sections") . '</li>';
        }
        //Section info
        if ($status) {
            if (!($status = backup_course_sections($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up course sections";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        //End course contents (close ul)
        if (!defined('BACKUP_SILENTLY')) {
            echo "</ul></li>";
        }
        //User info
        if ($status) {
            if (!defined('BACKUP_SILENTLY')) {
                echo "<li>" . get_string("writinguserinfo") . '</li>';
            }
            if (!($status = backup_user_info($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up user info";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        //If we have selected to backup messages and we are
        //doing a SITE backup, let's do it
        if ($status && $preferences->backup_messages && $preferences->backup_course == SITEID) {
            if (!defined('BACKUP_SILENTLY')) {
                echo "<li>" . get_string("writingmessagesinfo") . '</li>';
            }
            if (!($status = backup_messages($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up messages";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        //If we have selected to backup blogs and we are
        //doing a SITE backup, let's do it
        if ($status && isset($preferences->backup_blogs) && $preferences->backup_blogs && $preferences->backup_course == SITEID) {
            if (!defined('BACKUP_SILENTLY')) {
                echo "<li>" . get_string("writingblogsinfo") . '</li>';
            }
            if (!($status = backup_blogs($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up blogs";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        //If we have selected to backup quizzes or other modules that use questions
        //we've already added ids of categories and questions to backup to backup_ids table
        if ($status) {
            if (!defined('BACKUP_SILENTLY')) {
                echo "<li>" . get_string("writingcategoriesandquestions") . '</li>';
            }
            require_once $CFG->dirroot . '/question/backuplib.php';
            if (!($status = backup_question_categories($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up quiz categories";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        //Print logs if selected
        if ($status) {
            if ($preferences->backup_logs) {
                if (!defined('BACKUP_SILENTLY')) {
                    echo "<li>" . get_string("writingloginfo") . '</li>';
                }
                if (!($status = backup_log_info($backup_file, $preferences))) {
                    $errorstr = "An error occurred while backing up log info";
                    backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                    if (!defined('BACKUP_SILENTLY')) {
                        notify($errorstr);
                    } else {
                        return false;
                    }
                }
            }
        }
        //Print scales info
        if ($status) {
            if (!defined('BACKUP_SILENTLY')) {
                echo "<li>" . get_string("writingscalesinfo") . '</li>';
            }
            if (!($status = backup_scales_info($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up scales";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        //Print groups info
        if ($status) {
            if (!defined('BACKUP_SILENTLY')) {
                echo "<li>" . get_string("writinggroupsinfo") . '</li>';
            }
            if (!($status = backup_groups_info($backup_file, $preferences))) {
                $errostr = "An error occurred while backing up groups";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        //Print groupings info
        if ($status) {
            if (!defined('BACKUP_SILENTLY')) {
                echo "<li>" . get_string("writinggroupingsinfo") . '</li>';
            }
            if (!($status = backup_groupings_info($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up groupings";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        //Print groupings_groups info
        if ($status) {
            if (!defined('BACKUP_SILENTLY')) {
                echo "<li>" . get_string("writinggroupingsgroupsinfo") . '</li>';
            }
            if (!($status = backup_groupings_groups_info($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up groupings groups";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        //Print events info
        if ($status) {
            if (!defined('BACKUP_SILENTLY')) {
                echo "<li>" . get_string("writingeventsinfo") . '</li>';
            }
            if (!($status = backup_events_info($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up events";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        //Print gradebook info
        if ($status) {
            if (!defined('BACKUP_SILENTLY')) {
                echo "<li>" . get_string("writinggradebookinfo") . '</li>';
            }
            if (!($status = backup_gradebook_info($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up gradebook";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        //Module info, this unique function makes all the work!!
        //db export and module fileis copy
        if ($status) {
            $mods_to_backup = false;
            //Check if we have any mod to backup
            if (!empty($preferences->mods)) {
                foreach ($preferences->mods as $module) {
                    if ($module->backup) {
                        $mods_to_backup = true;
                    }
                }
            }
            //If we have to backup some module
            if ($mods_to_backup) {
                if (!defined('BACKUP_SILENTLY')) {
                    echo "<li>" . get_string("writingmoduleinfo");
                }
                //Start modules tag
                if (!($status = backup_modules_start($backup_file, $preferences))) {
                    $errorstr = "An error occurred while backing up module info";
                    backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                    if (!defined('BACKUP_SILENTLY')) {
                        notify($errorstr);
                    } else {
                        return false;
                    }
                }
                //Open ul for module list
                if (!defined('BACKUP_SILENTLY')) {
                    echo "<ul>";
                }
                //Iterate over modules and call backup
                foreach ($preferences->mods as $module) {
                    if ($module->backup and $status) {
                        if (!defined('BACKUP_SILENTLY')) {
                            echo "<li>" . get_string("modulenameplural", $module->name) . '</li>';
                        }
                        if (!($status = backup_module($backup_file, $preferences, $module->name))) {
                            $errorstr = "An error occurred while backing up '{$module->name}'";
                            backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                            if (!defined('BACKUP_SILENTLY')) {
                                notify($errorstr);
                            } else {
                                return false;
                            }
                        }
                    }
                }
                //Close ul for module list
                if (!defined('BACKUP_SILENTLY')) {
                    echo "</ul></li>";
                }
                //Close modules tag
                if (!($status = backup_modules_end($backup_file, $preferences))) {
                    $errorstr = "An error occurred while finishing the module backups";
                    backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                    if (!defined('BACKUP_SILENTLY')) {
                        notify($errorstr);
                    } else {
                        return false;
                    }
                }
            }
        }
        //Backup course format data, if any.
        if (!defined('BACKUP_SILENTLY')) {
            echo '<li>' . get_string("courseformatdata") . '</li>';
        }
        if ($status) {
            if (!($status = backup_format_data($backup_file, $preferences))) {
                $errorstr = "An error occurred while backing up the course format data";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        //Prints course end
        if ($status) {
            if (!($status = backup_course_end($backup_file, $preferences))) {
                $errorstr = "An error occurred while closing the course backup";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
        //Close the xml file and xml data
        if ($backup_file) {
            backup_close_xml($backup_file);
        }
        //End xml contents (close ul)
        if (!defined('BACKUP_SILENTLY')) {
            echo "</ul></li>";
        }
    }
    //Now, if selected, copy user files
    if ($status) {
        if ($preferences->backup_user_files) {
            if (!defined('BACKUP_SILENTLY')) {
                echo "<li>" . get_string("copyinguserfiles") . '</li>';
            }
            if (!($status = backup_copy_user_files($preferences))) {
                $errorstr = "An error occurred while copying user files";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
    }
    //Now, if selected, copy course files
    if ($status) {
        if ($preferences->backup_course_files) {
            if (!defined('BACKUP_SILENTLY')) {
                echo "<li>" . get_string("copyingcoursefiles") . '</li>';
            }
            if (!($status = backup_copy_course_files($preferences))) {
                $errorstr = "An error occurred while copying course files";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
    }
    //Now, if selected, copy site files
    if ($status) {
        if ($preferences->backup_site_files) {
            if (!defined('BACKUP_SILENTLY')) {
                echo "<li>" . get_string("copyingsitefiles") . '</li>';
            }
            if (!($status = backup_copy_site_files($preferences))) {
                $errorstr = "An error occurred while copying site files";
                backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
                if (!defined('BACKUP_SILENTLY')) {
                    notify($errorstr);
                } else {
                    return false;
                }
            }
        }
    }
    //Now, zip all the backup directory contents
    if ($status) {
        if (!defined('BACKUP_SILENTLY')) {
            echo "<li>" . get_string("zippingbackup") . '</li>';
        }
        if (!($status = backup_zip($preferences))) {
            $errorstr = "An error occurred while zipping the backup";
            backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
            if (!defined('BACKUP_SILENTLY')) {
                notify($errorstr);
            } else {
                return false;
            }
        }
    }
    //Now, copy the zip file to course directory
    if ($status) {
        if (!defined('BACKUP_SILENTLY')) {
            echo "<li>" . get_string("copyingzipfile") . '</li>';
        }
        if (!($status = copy_zip_to_course_dir($preferences))) {
            $errorstr = "An error occurred while copying the zip file to the course directory";
            backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
            if (!defined('BACKUP_SILENTLY')) {
                notify($errorstr);
            } else {
                return false;
            }
        }
    }
    //Now, clean temporary data (db and filesystem)
    if ($status) {
        if (!defined('BACKUP_SILENTLY')) {
            echo "<li>" . get_string("cleaningtempdata") . '</li>';
        }
        if (!($status = clean_temp_data($preferences))) {
            $errorstr = "An error occurred while cleaning up temporary data";
            backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
            if (!defined('BACKUP_SILENTLY')) {
                notify($errorstr);
            } else {
                return false;
            }
        }
    }
    //now call incremental backup if required.
    if (isset($preferences->backup_generate_incrementals) && $preferences->backup_generate_incrementals) {
        $backup_config = backup_get_config();
        require_once "incremental_backuplib.php";
        if (!check_xdelta_installed()) {
            $errorstr = "ERROR: XDELTA not installed - incrementals cannot run";
            backup_add_to_log(time(), $preferences->backup_course, $errorstr, 'manual');
            notify($errorstr);
        } elseif (isset($backup_config->backup_incrementals) && $backup_config->backup_incrementals) {
            require_once "{$CFG->libdir}/xdelta.class.php";
            echo '<li>' . get_string("generateincrementals", 'local') . '</li>';
            generate_incrementals($preferences->backup_course);
        }
    }
    return $status;
}